From 876933e174a44578fe92348f46a5332081d44697 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 6 Oct 2021 14:01:49 +0300
Subject: [PATCH 001/312] CONTRIBUTING.md: a couple notes

---
 docs/CONTRIBUTING.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
index e06afe31..7ef48d80 100644
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@@ -101,6 +101,12 @@ If you want to work again later, be sure to use `--recurse-submodules` during
 git pull --recurse-submodules
 ```
 
+Please don't force-push into a PR &mdash; it makes incremental review very
+difficult, and we will squash-merge most PRs anyway!
+
+Also please don't resolve conversations in PRs. Reviewers use resolving
+conversations to keep track of what has been addressed.
+
 <br>
 
 If you need to link to the local version of Dream from a project that lives in

From 250d973bfced4ada1dc05a131971539441d694c9 Mon Sep 17 00:00:00 2001
From: Dennis Dang <dangggdennis@gmail.com>
Date: Sat, 16 Oct 2021 20:30:27 -0400
Subject: [PATCH 002/312] Add z-deploy-fly example (#161)

---
 example/z-fly/.dockerignore      | 15 ++++++
 example/z-fly/.gitignore         |  2 +
 example/z-fly/Dockerfile         | 28 +++++++++++
 example/z-fly/README.md          | 85 ++++++++++++++++++++++++++++++++
 example/z-fly/app.ml             |  7 +++
 example/z-fly/docker-compose.yml | 10 ++++
 example/z-fly/dune               |  5 ++
 example/z-fly/dune-project       |  1 +
 example/z-fly/esy.json           | 22 +++++++++
 9 files changed, 175 insertions(+)
 create mode 100644 example/z-fly/.dockerignore
 create mode 100644 example/z-fly/.gitignore
 create mode 100644 example/z-fly/Dockerfile
 create mode 100644 example/z-fly/README.md
 create mode 100644 example/z-fly/app.ml
 create mode 100644 example/z-fly/docker-compose.yml
 create mode 100644 example/z-fly/dune
 create mode 100644 example/z-fly/dune-project
 create mode 100644 example/z-fly/esy.json

diff --git a/example/z-fly/.dockerignore b/example/z-fly/.dockerignore
new file mode 100644
index 00000000..e6f12490
--- /dev/null
+++ b/example/z-fly/.dockerignore
@@ -0,0 +1,15 @@
+# By ignoring _esy and _build, the final docker image size stays compact and uploaded quickly to Fly.
+
+# esy build environment
+_esy/
+
+# Dune build environment
+_build/
+
+# Git
+.git/
+.gitignore
+
+# Development
+Dockerfile
+docker-compose.yml
diff --git a/example/z-fly/.gitignore b/example/z-fly/.gitignore
new file mode 100644
index 00000000..55e75253
--- /dev/null
+++ b/example/z-fly/.gitignore
@@ -0,0 +1,2 @@
+node_modules
+_esy
\ No newline at end of file
diff --git a/example/z-fly/Dockerfile b/example/z-fly/Dockerfile
new file mode 100644
index 00000000..f0515764
--- /dev/null
+++ b/example/z-fly/Dockerfile
@@ -0,0 +1,28 @@
+FROM debian:stable-slim as build
+
+RUN apt-get update
+RUN apt-get install -y curl git libpq-dev m4 npm unzip
+
+WORKDIR /build
+
+RUN npm install esy
+
+# Install dependencies.
+ADD esy.* .
+RUN [ -f esy.lock ] || node_modules/.bin/esy solve
+RUN node_modules/.bin/esy fetch
+RUN node_modules/.bin/esy build-dependencies
+
+# Build project.
+ADD . .
+RUN node_modules/.bin/esy install
+RUN node_modules/.bin/esy build
+
+FROM debian:stable-slim as run
+
+RUN apt-get update
+RUN apt-get install -y libev4 libpq5 libssl1.1
+
+COPY --from=build build/_esy/default/build/default/app.exe /bin/app
+
+ENTRYPOINT /bin/app
diff --git a/example/z-fly/README.md b/example/z-fly/README.md
new file mode 100644
index 00000000..9eb3bd4b
--- /dev/null
+++ b/example/z-fly/README.md
@@ -0,0 +1,85 @@
+# `z-fly`
+
+This example deploys a very simple Dream
+[application](https://github.com/aantron/dream/blob/master/example/z-fly/app.ml)
+to [Fly](https://www.fly.io/), a hosting platform that scales and smartly moves your servers closer to your users. A low-usage app can be hosted for
+[free](https://fly.io/docs/about/pricing/#free-tier). Fly offers [flyctl](https://fly.io/docs/getting-started/installing-flyctl/), their CLI, that makes [deployment](https://fly.io/docs/hands-on/start/) and  
+[scaling](https://fly.io/docs/reference/scaling/) super simple.
+
+```ocaml
+let () =
+  Dream.run ~interface:"0.0.0.0"
+  @@ Dream.logger
+  @@ Dream.router [
+    Dream.get "/" (fun _ -> Dream.html "Dream deployed on Fly!");
+  ]
+  @@ Dream.not_found
+```
+
+It uses [Docker Compose](https://docs.docker.com/compose/), so that you can
+quickly expand it by adding databases and other services.
+
+```yaml
+version: "3"
+
+services:
+    web:
+        build: .
+        ports:
+            - "8080:8080"
+        restart: always
+        logging:
+            driver: ${LOGGING_DRIVER:-json-file}
+```
+
+The setup can be run locally or on any server provider.
+
+The
+[`Dockerfile`](https://github.com/aantron/dream/blob/master/example/z-docker-esy/Dockerfile)
+has two stages: one for building our application, and one for the runtime that
+only contains the final binary and its run-time dependencies.
+
+<br>
+
+## Deploy
+
+Fly has a really simple [setup guide](https://fly.io/docs/hands-on/start/) that we'll follow.
+
+1. Install `flyctl` with `brew install superfly/tap/flyctl`.
+2. Run `fly launch` to initialize and deploy your project.
+
+That should be it! Assuming no errors, the cli will share a link to your live app.
+
+<br>
+
+## Development
+
+For local development you can run your app with or without Docker. Setting up the Docker build for the first time may take at least 4 minutes. Subsequent builds are cached.
+
+<br>
+
+**With Docker**
+
+1. [Install Docker](https://www.docker.com/get-started).
+2. Ensure Docker is running, then run `docker compose up`. Docker should build, cache, and serve your app at `localhost:8080`.
+
+**Without Docker**
+
+1. Make sure you have [esy](https://esy.sh) installed.
+2. Run `esy` to install all dependencies.
+3. To start your app, run `esy start`. This is an aliased command setup inside `esy.json`.
+
+<br>
+
+**See also:**
+
+-   [**`z-docker-opam`**](../z-docker-opam#files) is a variant of this example
+    that uses opam instead of esy.
+-   [**`z-systemd`**](../z-systemd#files) packages the app as a systemd daemon,
+    outside of a Docker container.
+-   [**`z-heroku`**](../z-heroku#files) deploys the app to
+    [Heroku](https://heroku.com).
+
+<br>
+
+[Up to the example index](../#deploying)
diff --git a/example/z-fly/app.ml b/example/z-fly/app.ml
new file mode 100644
index 00000000..2184ee89
--- /dev/null
+++ b/example/z-fly/app.ml
@@ -0,0 +1,7 @@
+let () =
+  Dream.run ~interface:"0.0.0.0"
+  @@ Dream.logger
+  @@ Dream.router [
+    Dream.get "/" (fun _ -> Dream.html "Dream deployed on Fly!");
+  ]
+  @@ Dream.not_found
diff --git a/example/z-fly/docker-compose.yml b/example/z-fly/docker-compose.yml
new file mode 100644
index 00000000..3003b28b
--- /dev/null
+++ b/example/z-fly/docker-compose.yml
@@ -0,0 +1,10 @@
+version: "3"
+
+services:
+  web:
+    build: .
+    ports:
+      - "8080:8080"
+    restart: always
+    logging:
+      driver: ${LOGGING_DRIVER:-json-file}
diff --git a/example/z-fly/dune b/example/z-fly/dune
new file mode 100644
index 00000000..ef7bdf98
--- /dev/null
+++ b/example/z-fly/dune
@@ -0,0 +1,5 @@
+(executable
+ (name app)
+ (libraries dream))
+
+(data_only_dirs _esy esy.lock lib node_modules)
diff --git a/example/z-fly/dune-project b/example/z-fly/dune-project
new file mode 100644
index 00000000..929c696e
--- /dev/null
+++ b/example/z-fly/dune-project
@@ -0,0 +1 @@
+(lang dune 2.0)
diff --git a/example/z-fly/esy.json b/example/z-fly/esy.json
new file mode 100644
index 00000000..959f7de2
--- /dev/null
+++ b/example/z-fly/esy.json
@@ -0,0 +1,22 @@
+{
+  "scripts": {
+    "start": "./_esy/default/build/default/app.exe",
+    "build": "dune build"
+  },
+  "dependencies": {
+    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dune": "^2.0",
+    "ocaml": "4.12.x"
+  },
+  "devDependencies": {
+    "@opam/ocaml-lsp-server": "*"
+  },
+  "resolutions": {
+    "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829"
+  },
+  "esy": {
+    "build": [
+      "dune build --root . ./app.exe"
+    ]
+  }
+}
\ No newline at end of file

From d54b466b4a4444129883dcec06b6220c9cc60236 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Eduardo?=
 <51955049+joseemds@users.noreply.github.com>
Date: Sat, 16 Oct 2021 21:45:05 -0300
Subject: [PATCH 003/312] Add csrf option to Dream.form and Dream.multipart
 (#167)

---
 src/dream.mli            | 4 ++--
 src/middleware/form.ml   | 5 ++++-
 src/middleware/upload.ml | 6 +++++-
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index feebd85e..fa1a9ed8 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -816,7 +816,7 @@ type 'a form_result = [
     activity, or tokens so old that decryption keys have since been rotated on
     the server. *)
 
-val form : request -> (string * string) list form_result promise
+val form : ?csrf:bool -> request -> (string * string) list form_result promise
 (** Parses the request body as a form. Performs CSRF checks. Use
     {!Dream.form_tag} in a template to transparently generate forms that will
     pass these checks. See {!section-templates} and example
@@ -907,7 +907,7 @@ type multipart_form =
     OWASP {i File Upload Cheat Sheet}} for security precautions for upload
     forms. *)
 
-val multipart : request -> multipart_form form_result promise
+val multipart : ?csrf:bool -> request -> multipart_form form_result promise
 (** Like {!Dream.form}, but also reads files, and [Content-Type:] must be
     [multipart/form-data]. The [<form>] tag and CSRF token can be generated in a
     template with
diff --git a/src/middleware/form.ml b/src/middleware/form.ml
index fe29c5aa..f1886da2 100644
--- a/src/middleware/form.ml
+++ b/src/middleware/form.ml
@@ -54,12 +54,15 @@ let sort_and_check_form ~now to_value form request =
     log.warning (fun log -> log ~request "CSRF token duplicated");
     Lwt.return (`Many_tokens form)
 
-let form ~now request =
+let form ?(csrf = true) ~now request =
   match Dream.header "Content-Type" request with
   | Some "application/x-www-form-urlencoded" ->
     let%lwt body = Dream.body request in
     let form = Dream__pure.Formats.from_form_urlencoded body in
+    if csrf then
     sort_and_check_form ~now (fun string -> string) form request
+    else
+    Lwt.return (`Ok (sort form))
 
   | _ ->
     log.warning (fun log -> log ~request
diff --git a/src/middleware/upload.ml b/src/middleware/upload.ml
index 4fbca2c1..0ffde2b7 100644
--- a/src/middleware/upload.ml
+++ b/src/middleware/upload.ml
@@ -87,7 +87,7 @@ type multipart_form =
   (string * ((string option * string) list)) list
 module Map = Map.Make (String)
 
-let multipart ~now request =
+let multipart ?(csrf=true) ~now request =
   let content_type = match Dream.header "content-type" request with
     | Some content_type ->
       Result.to_option (Multipart_form.Content_type.of_string (content_type ^ "\r\n"))
@@ -124,8 +124,12 @@ let multipart ~now request =
           | [Some "", ""] -> name, []
           | _ -> name, List.rev values)
       in
+      if csrf then
       Form.sort_and_check_form ~now
         (function
         | [None, value] -> value
         | _ -> "")
         parts request
+      else
+      let form = Form.sort parts in
+      Lwt.return (`Ok form)

From f584c1a348b588845902682982229a4c021772cc Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 30 Oct 2021 12:01:35 +0300
Subject: [PATCH 004/312] Add .vscode to .gitignore

---
 .gitignore | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.gitignore b/.gitignore
index a4114480..9969b6bd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,6 @@ _coverage/
 
 # Humans
 scratch/
+
+# Editors
+.vscode/

From 6225e2d4ab085709291a135b5a1aa32f9485c548 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 1 Nov 2021 18:51:14 +0300
Subject: [PATCH 005/312] Get Formats coverage to 100%

Ptime.to_date_time does not return leap seconds.
---
 src/pure/formats.ml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/pure/formats.ml b/src/pure/formats.ml
index f0311284..bf7c83ac 100644
--- a/src/pure/formats.ml
+++ b/src/pure/formats.ml
@@ -80,11 +80,11 @@ let to_set_cookie
 
          See https://tools.ietf.org/html/rfc6265#section-5.1.1.
 
-         Even though [Ptime] time does not account for leap seconds, in case I
-         misunderstand the gmtime API, system differences, or future
+         Even though [Ptime.to_date_time] time does not return leap seconds, in
+         case I misunderstood the gmtime API, of system differences, or future
          refactoring, make sure no leap seconds creep into the output. *)
       let seconds =
-        if ss < 60 then ss else 59
+        if ss < 60 then ss else 59 [@coverage off]
       in
       Printf.sprintf "; Expires=%s, %02i %s %i %02i:%02i:%02i GMT"
         weekday d month y hh mm seconds

From b11f9f83b0bbc89d542f3c82953245f5a5459b80 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 8 Nov 2021 11:50:54 +0300
Subject: [PATCH 006/312] CI: simplify matrix and add 4.13

---
 .github/workflows/test.yml | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 11fc1856..35344af3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,21 +8,18 @@ jobs:
       matrix:
         os:
         - ubuntu-latest
-        - macos-latest
-          # - windows-latest
-          # Blocked until we no longer require libev; Dream still works on
-          # Windows, but testing it is awkward at the moment.
         ocaml:
+        - 4.13.x
         - 4.12.x
+        - 4.11.x
+        - 4.10.x
+        - 4.09.x
+        - 4.08.x
         include:
-        - os: ubuntu-latest
-          ocaml: 4.08.x
-        - os: ubuntu-latest
-          ocaml: 4.09.x
-        - os: ubuntu-latest
-          ocaml: 4.10.x
-        - os: ubuntu-latest
-          ocaml: 4.11.x
+        - os: macos-latest
+          ocaml: 4.12.x
+        # Windows is blocked until we no longer require libev; Dream still works
+        # on Windows, but testing it is awkward at the moment.
 
     runs-on: ${{matrix.os}}
     steps:

From 440fa71d5bee5d8f8e4f5f16b0f5c2b041b9e417 Mon Sep 17 00:00:00 2001
From: Joe Thomas <jsthomas@protonmail.com>
Date: Mon, 8 Nov 2021 04:44:12 -0700
Subject: [PATCH 007/312] Allow log levels to be configured per-source (#171)

---
 src/dream.mli         | 11 +++++++++--
 src/middleware/log.ml | 45 ++++++++++++++++++++++++++++++++++---------
 2 files changed, 45 insertions(+), 11 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index fa1a9ed8..79de562d 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1688,7 +1688,7 @@ type sub_log = {
 }
 (** Sub-logs. See {!Dream.val-sub_log} right below. *)
 
-val sub_log : string -> sub_log
+val sub_log : ?level:[< log_level] -> string -> sub_log
 (** Creates a new sub-log with the given name. For example,
 
     {[
@@ -1702,6 +1702,10 @@ val sub_log : string -> sub_log
       log.error (fun log -> log ~request "Validation failed")
     ]}
 
+    [?level] sets the log level threshold for this sub-log only. If not
+    provided, falls back to the global log level set by {!Dream.initialize_log},
+    unless {!Dream.set_log_level} is used.
+
     See [README] of example
     {{:https://github.com/aantron/dream/tree/master/example/a-log#files}
     [a-log]}. *)
@@ -1730,12 +1734,15 @@ val initialize_log :
       [Lwt.async_exception_hook]} so as to forward all asynchronous exceptions
       to the logger, and not terminate the process.
 
-    - [~level] sets the log level threshould for the entire binary. The default
+    - [~level] sets the log level threshold for the entire binary. The default
       is [`Info].
 
     - [~enable:false] disables Dream logging completely. This can help sanitize
       output during testing. *)
 
+val set_log_level : string -> [< log_level ] -> unit
+(** Set the log level threshold of the given sub-log. *)
+
 
 
 (** {1 Errors}
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index 75cd049e..53be550d 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -197,6 +197,12 @@ let enable =
 let level =
   ref Logs.Info
 
+let custom_log_levels : (string * Logs.level) list ref =
+  ref []
+
+let sources : (string * Logs.src) list ref =
+  ref []
+
 let set_printexc =
   ref true
 
@@ -212,6 +218,13 @@ type log_level = [
   | `Debug
 ]
 
+let to_logs_level l =
+  match l with
+  | `Error -> Logs.Error
+  | `Warning -> Logs.Warning
+  | `Info -> Logs.Info
+  | `Debug -> Logs.Debug
+
 exception Logs_are_not_initialized
 
 let setup_logs =
@@ -244,7 +257,7 @@ type sub_log = {
   debug : 'a. ('a, unit) conditional_log;
 }
 
-let sub_log name =
+let sub_log ?level:level_ name =
   (* This creates a wrapper, as described above. The wrapper forwards to a
      logger of the Logs library, but instead of passing the formatter m to the
      user's callback, it passes a formatter m', which is like m, but lacks a
@@ -268,9 +281,21 @@ let sub_log name =
         log ~tags format_and_arguments))
   in
 
+  let level =
+    List.find Option.is_some [
+      Option.map to_logs_level level_;
+      List.assoc_opt name !custom_log_levels;
+      Some !level
+    ] in
+
   (* Create the actual Logs source, and then wrap all the interesting
      functions. *)
-  let (module Log) = Logs.src_log (Logs.Src.create name) in
+  let src = Logs.Src.create name in
+  let (module Log) = Logs.src_log src in
+  Logs.Src.set_level src level;
+  custom_log_levels :=
+    (name, Option.get level)::(List.remove_assoc name !custom_log_levels);
+  sources := (name, src) :: (List.remove_assoc name !sources);
 
   {
     error =   (fun k -> forward ~destination_log:Log.err   k);
@@ -335,19 +360,21 @@ let initialize_log
   set_async_exception_hook := false;
 
   let level_ =
-    match level_ with
-    | None -> Logs.Info
-    | Some `Error -> Logs.Error
-    | Some `Warning -> Logs.Warning
-    | Some `Info -> Logs.Info
-    | Some `Debug -> Logs.Debug
-  in
+    Option.map to_logs_level level_
+    |> Option.value ~default:Logs.Info in
 
   enable := enable_;
   level := level_;
   let `Initialized = initialized () in
   ()
 
+let set_log_level name level =
+  let level = to_logs_level level in
+  custom_log_levels :=
+    (name, level)::(List.remove_assoc name !custom_log_levels);
+  let src = List.assoc_opt name !sources in
+  Option.iter (fun s -> Logs.Src.set_level s (Some level)) src
+
 module Make (Pclock : Mirage_clock.PCLOCK) =
 struct
   let now () =

From 237acbbbe1f7d549176978c21944006e321a2f51 Mon Sep 17 00:00:00 2001
From: Shawn McGinty <mcginty.shawn@gmail.com>
Date: Mon, 8 Nov 2021 06:01:28 -0600
Subject: [PATCH 008/312] Add drop_cookie (#169)

---
 src/dream.mli      | 66 ++++++++++++++++++++++++++++++++++++++++++++++
 src/pure/inmost.ml | 33 +++++++++++++++++++++++
 2 files changed, 99 insertions(+)

diff --git a/src/dream.mli b/src/dream.mli
index 79de562d..23d70dc1 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -636,6 +636,72 @@ val set_cookie :
 
  *)
 
+ val drop_cookie :
+   ?prefix:[< `Host | `Secure ] option ->
+   ?domain:string ->
+   ?path:string option ->
+   ?secure:bool ->
+   ?http_only:bool ->
+   ?same_site:[< `Lax | `None | `Strict > `Strict ] option ->
+     string -> request -> response -> response
+(** Appends an expired [Set-Cookie:] header to the {!type-response}. Infers the
+    most secure defaults from the {!type-request}.
+
+    {[
+      Dream.drop_cookie "my.cookie" request response
+    ]}
+
+    See example
+    {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
+    [c-cookie]}.
+
+    Most of the optional arguments are for overriding inferred defaults.
+    Please use the same arguments provided when the cookie to be dropped was set.
+
+    - [~prefix] sets [__Host-], [__Secure-], or no prefix, from most secure to
+      least. A conforming client will refuse to accept the cookie if [~domain],
+      [~path], and [~secure] don't match the constraints implied by the prefix.
+      By default, {!Dream.set_cookie} chooses the most restrictive prefix based
+      on the other settings and the {!type-request}. See
+      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.3}
+      RFC 6265bis §4.1.3} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Cookie_prefixes}
+      MDN}.
+    - [~domain] sets the [Domain=] attribute. See
+      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.3}
+      RFC 6265bis §4.1.2.3} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Domain_attribute}
+      MDN}.
+    - [~path] sets the [Path=] attribute. By default, [Path=] set to the site
+      prefix in the {!type-request}, which is usually [/]. See
+      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.4}
+      RFC 6265bis §4.1.2.4} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Path_attribute}
+      MDN}.
+    - [~secure] sets the [Secure] attribute. By default, [Secure] is set if
+      {!Dream.https} is [true] for the {!type-request}. See
+      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.5}
+      RFC 6265bis §4.1.2.5} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#restrict_access_to_cookies}
+      MDN}.
+    - [~http_only] sets the [HttpOnly] attribute. [HttpOnly] is set by default.
+      See
+      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.6}
+      RFC 6265bis §4.1.2.6} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#restrict_access_to_cookies}
+      MDN}.
+    - [~same_site] sets the [SameSite=] attribute. [SameSite] is set to [Strict]
+      by default. See
+      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.7}
+      RFC 6265bis §4.1.2.7} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#SameSite_attribute}
+      MDN}.
+
+    {!Dream.to_set_cookie} is a “raw” version of this function that does not do
+    any inference.
+
+ *)
+
 val cookie :
   ?prefix:[< `Host | `Secure ] option ->
   ?decrypt:bool ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 2bbb961a..741ce43f 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -702,3 +702,36 @@ let set_cookie
   in
 
   add_header "Set-Cookie" set_cookie response
+
+let drop_cookie
+    ?prefix:cookie_prefix
+    ?domain
+    ?path
+    ?secure
+    ?(http_only = true)
+    ?same_site
+    name
+    request
+    response =
+
+  let set_cookie = set_cookie ~http_only:http_only ~expires:0. ~encrypt:false in
+
+  let set_cookie = match cookie_prefix with
+    | Some p -> set_cookie ~prefix:p
+    | None -> set_cookie ~prefix:None in
+
+  let set_cookie = match path with
+    | Some p -> set_cookie ~path:p
+    | None -> set_cookie ~path:(Some (prefix request)) in
+
+  let set_cookie = match secure with
+    | Some sec -> set_cookie ~secure:sec
+    | None -> set_cookie ~secure:false in
+
+  let set_cookie = match same_site with
+    | Some s -> set_cookie ~same_site:s
+    | None -> set_cookie ~same_site:(Some `Strict) in
+
+  match domain with
+    | Some d -> set_cookie ~domain:d name "deleted" request response
+    | None -> set_cookie name "deleted" request response

From 0d7b042214793193f3f053b99ca6d147423c7f3b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 9 Nov 2021 15:02:01 +0300
Subject: [PATCH 009/312] Upgrade gluten

---
 src/vendor/gluten | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vendor/gluten b/src/vendor/gluten
index e1cd95ae..475c3610 160000
--- a/src/vendor/gluten
+++ b/src/vendor/gluten
@@ -1 +1 @@
-Subproject commit e1cd95ae9e2270d2b1c80c2894d111bafd961f62
+Subproject commit 475c36109fad6a09cec9d1a1b9b2f9c3818fc854

From c1ca22d2668d32aa413a2cda8d7d2897512b7461 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 9 Nov 2021 16:29:04 +0300
Subject: [PATCH 010/312] Upgrade http/af and websocket/af forks

---
 src/http/adapt.ml      | 10 +++++-----
 src/http/http.ml       | 35 +++++++++++++++++++----------------
 src/vendor/httpaf      |  2 +-
 src/vendor/websocketaf |  2 +-
 4 files changed, 26 insertions(+), 23 deletions(-)

diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index c55d9882..d554faed 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -53,14 +53,14 @@ let forward_body_general
 
 let forward_body
     (response : Dream.response)
-    (body : [ `write ] Httpaf.Body.t) =
+    (body : Httpaf.Body.Writer.t) =
 
   forward_body_general
     response
-    (Httpaf.Body.write_string body)
-    (Httpaf.Body.write_bigstring body)
-    (Httpaf.Body.flush body)
-    (fun () -> Httpaf.Body.close_writer body)
+    (Httpaf.Body.Writer.write_string body)
+    (Httpaf.Body.Writer.write_bigstring body)
+    (Httpaf.Body.Writer.flush body)
+    (fun () -> Httpaf.Body.Writer.close body)
 
 let forward_body_h2
     (response : Dream.response)
diff --git a/src/http/http.ml b/src/http/http.ml
index 239960b7..47fcfc0f 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -79,7 +79,7 @@ let websocket_handler user's_websocket_handler socket =
 
   (* This function is called on each frame received. In this high-level handler.
      we automatically respond to all control opcodes. *)
-  let frame ~opcode ~is_fin buffer ~off ~len =
+  let frame ~opcode ~is_fin ~len:_ payload =
     match opcode with
     | `Connection_close ->
       Websocketaf.Wsd.close socket;
@@ -92,21 +92,24 @@ let websocket_handler user's_websocket_handler socket =
       ()
 
     | `Text
-    | `Binary ->
-      let fragment = Lwt_bytes.to_string (Lwt_bytes.proxy buffer off len) in
-      if is_fin then
-        push_message (Some fragment)
-      else
-        message_frames := [fragment]
-
+    | `Binary
     | `Continuation ->
-      let fragment = Lwt_bytes.to_string (Lwt_bytes.proxy buffer off len) in
-      message_frames := fragment::!message_frames;
-      if is_fin then begin
-        let message = String.concat "" (List.rev !message_frames) in
-        message_frames := [];
-        push_message (Some message)
-      end
+      let rec read () =
+        Websocketaf.Payload.schedule_read
+          payload
+          ~on_read:(fun buffer ~off ~len ->
+            let fragment =
+              Lwt_bytes.to_string (Lwt_bytes.proxy buffer off len) in
+            message_frames := fragment::!message_frames;
+            read ())
+        ~on_eof:(fun () ->
+          if is_fin then begin
+            let message = String.concat "" (List.rev !message_frames) in
+            message_frames := [];
+            push_message (Some message)
+          end)
+      in
+      read ()
   in
 
   let eof () =
@@ -170,7 +173,7 @@ let wrap_handler
       let on_eof () = Dream.close_stream request |> ignore in
 
       let rec loop () =
-        Httpaf.Body.schedule_read
+        Httpaf.Body.Reader.schedule_read
           body
           ~on_eof
           ~on_read:(fun buffer ~off ~len ->
diff --git a/src/vendor/httpaf b/src/vendor/httpaf
index ee3e7906..3a74fd88 160000
--- a/src/vendor/httpaf
+++ b/src/vendor/httpaf
@@ -1 +1 @@
-Subproject commit ee3e790669dedfae5210d1431ea7f3e1f346a95e
+Subproject commit 3a74fd8851e3019f5889ae1bf9350e90ed40017d
diff --git a/src/vendor/websocketaf b/src/vendor/websocketaf
index 98d5f952..248a2cb0 160000
--- a/src/vendor/websocketaf
+++ b/src/vendor/websocketaf
@@ -1 +1 @@
-Subproject commit 98d5f952f5fd25eecc78cd105f1d7a4013f4166a
+Subproject commit 248a2cb0dcffa51996c3ad7643577dce75d67454

From 264febe50c54ae85fa3c7e51b7880fd8d4329c43 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 9 Nov 2021 16:35:36 +0300
Subject: [PATCH 011/312] Upgrade h2

---
 src/vendor/h2 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vendor/h2 b/src/vendor/h2
index a696a1ce..fa0c8a47 160000
--- a/src/vendor/h2
+++ b/src/vendor/h2
@@ -1 +1 @@
-Subproject commit a696a1ce66f573c23041840322d0e1770d5ebc70
+Subproject commit fa0c8a4746fdc50183e254f8c08239fc5b67717d

From 972d3a9ec0d1baad8500c6b513f1221e310fe1dc Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 9 Nov 2021 17:07:18 +0300
Subject: [PATCH 012/312] CI: don't install deps of dream-mirage

---
 .github/workflows/test.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 35344af3..9f801012 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,7 +33,7 @@ jobs:
 
     - run: opam depext --yes conf-postgresql
     - run: opam depext --yes conf-libev
-    - run: opam install --yes --deps-only --with-test .
+    - run: opam install --yes --deps-only --with-test ./dream.opam
     - run: opam exec -- dune runtest
     - run: |
         set -e

From 3ae5855c0b911d86492ee72566cd04b7ff360227 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 9 Nov 2021 17:17:17 +0300
Subject: [PATCH 013/312] CI: pin Reason

Needed until https://github.com/reasonml/reason/pull/2660 is released.
---
 .github/workflows/test.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9f801012..c12dfebc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,6 +33,8 @@ jobs:
 
     - run: opam depext --yes conf-postgresql
     - run: opam depext --yes conf-libev
+    # Needed until https://github.com/reasonml/reason/pull/2660 is in opam.
+    - run: opam pin add reason --yes --no-action --dev-repo
     - run: opam install --yes --deps-only --with-test ./dream.opam
     - run: opam exec -- dune runtest
     - run: |

From f056d0b34daf608944f1950d5e81b107cf5b7063 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 9 Nov 2021 17:56:51 +0300
Subject: [PATCH 014/312] Simplify drop_cookie

---
 src/dream.mli      | 66 +++++-----------------------------------------
 src/pure/inmost.ml | 35 +++---------------------
 2 files changed, 10 insertions(+), 91 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 23d70dc1..93b2a705 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -632,9 +632,7 @@ val set_cookie :
       MDN}.
 
     {!Dream.to_set_cookie} is a “raw” version of this function that does not do
-    any inference.
-
- *)
+    any inference. *)
 
  val drop_cookie :
    ?prefix:[< `Host | `Secure ] option ->
@@ -642,65 +640,13 @@ val set_cookie :
    ?path:string option ->
    ?secure:bool ->
    ?http_only:bool ->
-   ?same_site:[< `Lax | `None | `Strict > `Strict ] option ->
+   ?same_site:[< `Strict | `Lax | `None ] option ->
      string -> request -> response -> response
-(** Appends an expired [Set-Cookie:] header to the {!type-response}. Infers the
-    most secure defaults from the {!type-request}.
-
-    {[
-      Dream.drop_cookie "my.cookie" request response
-    ]}
-
-    See example
-    {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
-    [c-cookie]}.
-
-    Most of the optional arguments are for overriding inferred defaults.
-    Please use the same arguments provided when the cookie to be dropped was set.
-
-    - [~prefix] sets [__Host-], [__Secure-], or no prefix, from most secure to
-      least. A conforming client will refuse to accept the cookie if [~domain],
-      [~path], and [~secure] don't match the constraints implied by the prefix.
-      By default, {!Dream.set_cookie} chooses the most restrictive prefix based
-      on the other settings and the {!type-request}. See
-      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.3}
-      RFC 6265bis §4.1.3} and
-      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Cookie_prefixes}
-      MDN}.
-    - [~domain] sets the [Domain=] attribute. See
-      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.3}
-      RFC 6265bis §4.1.2.3} and
-      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Domain_attribute}
-      MDN}.
-    - [~path] sets the [Path=] attribute. By default, [Path=] set to the site
-      prefix in the {!type-request}, which is usually [/]. See
-      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.4}
-      RFC 6265bis §4.1.2.4} and
-      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Path_attribute}
-      MDN}.
-    - [~secure] sets the [Secure] attribute. By default, [Secure] is set if
-      {!Dream.https} is [true] for the {!type-request}. See
-      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.5}
-      RFC 6265bis §4.1.2.5} and
-      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#restrict_access_to_cookies}
-      MDN}.
-    - [~http_only] sets the [HttpOnly] attribute. [HttpOnly] is set by default.
-      See
-      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.6}
-      RFC 6265bis §4.1.2.6} and
-      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#restrict_access_to_cookies}
-      MDN}.
-    - [~same_site] sets the [SameSite=] attribute. [SameSite] is set to [Strict]
-      by default. See
-      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.7}
-      RFC 6265bis §4.1.2.7} and
-      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#SameSite_attribute}
-      MDN}.
-
-    {!Dream.to_set_cookie} is a “raw” version of this function that does not do
-    any inference.
+(** Deletes the given cookie.
 
- *)
+    This function works by calling {!Dream.set_cookie}, and setting the cookie
+    to expire in the past. Pass all the same optional values that you would pass
+    to {!Dream.set_cookie}, to make sure that the same cookie is deleted. *)
 
 val cookie :
   ?prefix:[< `Host | `Secure ] option ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 741ce43f..333b2b01 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -704,34 +704,7 @@ let set_cookie
   add_header "Set-Cookie" set_cookie response
 
 let drop_cookie
-    ?prefix:cookie_prefix
-    ?domain
-    ?path
-    ?secure
-    ?(http_only = true)
-    ?same_site
-    name
-    request
-    response =
-
-  let set_cookie = set_cookie ~http_only:http_only ~expires:0. ~encrypt:false in
-
-  let set_cookie = match cookie_prefix with
-    | Some p -> set_cookie ~prefix:p
-    | None -> set_cookie ~prefix:None in
-
-  let set_cookie = match path with
-    | Some p -> set_cookie ~path:p
-    | None -> set_cookie ~path:(Some (prefix request)) in
-
-  let set_cookie = match secure with
-    | Some sec -> set_cookie ~secure:sec
-    | None -> set_cookie ~secure:false in
-
-  let set_cookie = match same_site with
-    | Some s -> set_cookie ~same_site:s
-    | None -> set_cookie ~same_site:(Some `Strict) in
-
-  match domain with
-    | Some d -> set_cookie ~domain:d name "deleted" request response
-    | None -> set_cookie name "deleted" request response
+    ?prefix ?domain ?path ?secure ?http_only ?same_site name request response =
+  set_cookie
+    ?prefix ~encrypt:false ~expires:0. ?domain ?path ?secure ?http_only
+    ?same_site name "" request response

From 8efb1adaffc957286f9963221522359990c45b30 Mon Sep 17 00:00:00 2001
From: Michael Bacarella <michael.bacarella@gmail.com>
Date: Tue, 9 Nov 2021 13:50:47 -0800
Subject: [PATCH 015/312] Mirage: fix up and explain gcloud commands (#172)

---
 example/m-mirage/README.md | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/example/m-mirage/README.md b/example/m-mirage/README.md
index 34f8f41f..3b952b91 100644
--- a/example/m-mirage/README.md
+++ b/example/m-mirage/README.md
@@ -15,11 +15,14 @@ encrypt challenge.
 
 ```sh
 $ gcloud init
+# Your name below must be __globally__ unique, dream-os will be taken by now
 $ gcloud projects create dream-os --name="dream-os"
-# Enable billing on the dream-os project
+# Enable billing for project
+# Go to https://cloud.google.com, log into Console, select project from
+#  dropdown, then click billing
 $ gcloud config set project dream-os
-$ gcloud compute address --region europe-west1
-# Set your zone file with the given IP address
+$ gcloud compute addresses create <HOSTNAME> --region europe-west1
+# Set your in your DNS zone file the IP address yielded above
 $ gsutil mb gs://dream-os
 ```
 
@@ -37,10 +40,10 @@ address.
 ```sh
 $ opam install mirage
 $ mirage configure -t virtio --dhcp true --hostname <HOSTNAME> --tls true \
-  --letsencrypt true --productive false
+  --letsencrypt true --production false
 $ make depends
 $ mirage build
-$ solo5-virtio-mkimage gs://dream-os
+$ solo5-virtio-mkimage -f tar -- dream.tar.gz dream.virtio
 ```
 
 #### Deployement

From b4402449f13c1ece90d00ca09e8903ec19e4ffe5 Mon Sep 17 00:00:00 2001
From: Joe Thomas <jsthomas@protonmail.com>
Date: Thu, 11 Nov 2021 11:31:26 -0700
Subject: [PATCH 016/312] Add additional instrumentation for flash messages
 (#173)

Resolves #90.
---
 example/w-flash/README.md    | 11 ++++++
 example/w-flash/flash.eml.ml |  1 +
 src/middleware/flash.ml      | 69 ++++++++++++++++++++++++------------
 src/middleware/log.ml        |  3 ++
 4 files changed, 61 insertions(+), 23 deletions(-)

diff --git a/example/w-flash/README.md b/example/w-flash/README.md
index ffc98d7f..515a547d 100644
--- a/example/w-flash/README.md
+++ b/example/w-flash/README.md
@@ -48,6 +48,7 @@ into cookies and reads them back out:
 
 ```ocaml
 let () =
+  Dream.set_log_level "dream.flash" `Debug;
   Dream.run
   @@ Dream.logger
   @@ Dream.memory_sessions
@@ -75,6 +76,16 @@ let () =
   @@ Dream.not_found
 ```
 
+The example configures a custom log level for flash messages using
+`Dream.set_log_level`. Setting this to "debug" means the server logs
+will display a log point summarizing the flash messages on every
+request, like this:
+
+```
+10.11.21 01:48:21.629       dream.log  INFO REQ 3 GET /result ::1:39808 Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0
+10.11.21 01:48:21.629     dream.flash DEBUG REQ 3 Flash messages: Info: Some Message
+```
+
 <pre><code><b>$ cd example/w-flash</b>
 <b>$ npm install esy && npx esy</b>
 <b>$ npx esy start</b></code></pre>
diff --git a/example/w-flash/flash.eml.ml b/example/w-flash/flash.eml.ml
index e07ffab8..b1f4fe4b 100644
--- a/example/w-flash/flash.eml.ml
+++ b/example/w-flash/flash.eml.ml
@@ -18,6 +18,7 @@ let result request =
   </html>
 
 let () =
+  Dream.set_log_level "dream.flash" `Debug;
   Dream.run
   @@ Dream.logger
   @@ Dream.memory_sessions
diff --git a/src/middleware/flash.ml b/src/middleware/flash.ml
index 1ccc9ddf..5fc1ee97 100644
--- a/src/middleware/flash.ml
+++ b/src/middleware/flash.ml
@@ -19,33 +19,16 @@ let storage =
 let flash_cookie =
   "dream.flash"
 
-
-
-let flash_messages inner_handler request =
-  let outbox = ref [] in
-  let request = Dream.with_local storage outbox request in
-  let%lwt response = inner_handler request in
-  let entries = List.rev !outbox in
-  let existing = Dream.cookie flash_cookie request in
-  let response =
-    match existing, entries with
-    | None, [] -> response
-    | Some _, [] ->
-      Dream.set_cookie flash_cookie "" request response ~expires:0.
-    | _, _ ->
-      let content =
-        List.fold_right (fun (x,y) a -> `String x :: `String y :: a) entries []
-      in
-      let value = `List content |> Yojson.Basic.to_string in
-      Dream.set_cookie flash_cookie value request response ~max_age:five_minutes
-  in
-  Lwt.return response
-
-
+(* This is a soft limit. Encryption and base64 encoding increase the
+   original size of the cookie text by ~4/3.*)
+let content_byte_size_limit =
+  3072
 
 let (|>?) =
   Option.bind
 
+
+
 let flash request =
   let rec group x =
     match x with
@@ -76,3 +59,43 @@ let put_flash category message request =
       failwith message
   in
   outbox := (category, message)::!outbox
+
+
+
+let flash_messages inner_handler request =
+  log.debug (fun log ->
+    let current =
+      flash request
+      |> List.map (fun (p,q) -> p ^ ": " ^ q)
+      |> String.concat ", " in
+    if String.length current > 0 then
+      log ~request "Flash messages: %s" current
+    else
+      log ~request "%s" "No flash messages.");
+  let outbox = ref [] in
+  let request = Dream.with_local storage outbox request in
+  let existing = Dream.cookie flash_cookie request in
+  let%lwt response = inner_handler request in
+  let entries = List.rev !outbox in
+  let response =
+    match existing, entries with
+    | None, [] -> response
+    | Some _, [] ->
+      Dream.set_cookie flash_cookie "" request response ~expires:0.
+    | _, _ ->
+      let content =
+        List.fold_right (fun (x,y) a -> `String x :: `String y :: a) entries []
+      in
+      let value = `List content |> Yojson.Basic.to_string in
+      let () =
+        if String.length value >= content_byte_size_limit then
+          log.warning (fun log ->
+            log ~request
+              "Flash messages exceed soft size limit (%d bytes)"
+              content_byte_size_limit)
+        else
+          ()
+      in
+      Dream.set_cookie flash_cookie value request response ~max_age:five_minutes
+  in
+  Lwt.return response
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index 53be550d..68b6da62 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -369,6 +369,9 @@ let initialize_log
   ()
 
 let set_log_level name level =
+  (* If logging hasn't been initialized, trigger this so that
+     configuration of log levels can proceed. *)
+  let `Initialized = initialized () in
   let level = to_logs_level level in
   custom_log_levels :=
     (name, level)::(List.remove_assoc name !custom_log_levels);

From 5578b901ff3a311ac4f4e7f050461e558005d96e Mon Sep 17 00:00:00 2001
From: Calascibetta Romain <romain.calascibetta@gmail.com>
Date: Mon, 15 Nov 2021 14:44:24 +0100
Subject: [PATCH 017/312] Mirage: fix make depends command on DreamOS (#175)

---
 example/m-mirage/config.ml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/example/m-mirage/config.ml b/example/m-mirage/config.ml
index 7945bef7..b8be79da 100644
--- a/example/m-mirage/config.ml
+++ b/example/m-mirage/config.ml
@@ -35,8 +35,8 @@ let letsencrypt =
 let dream =
   foreign "Unikernel.Make"
     ~packages:[ package "ca-certs-nss"
-              ; package "dns-client.mirage"
-              ; package "dream-mirage.paf.le"
+              ; package "dns-client" ~sublibs:[ "mirage" ]
+              ; package "dream-mirage" ~sublibs:[ "paf.le" ]
               ; package "dream-mirage" ]
     ~keys:Key.([ abstract port
                ; abstract hostname

From 2075347172ca520be9dec87eaca9dc5cacc3badf Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 24 Nov 2021 17:12:15 +0300
Subject: [PATCH 018/312] Replace Body by simpler, clearer Stream module

---
 src/dream.ml                     |   5 +-
 src/dream.mli                    |  18 +-
 src/http/adapt.ml                |  22 +-
 src/http/http.ml                 |  65 +++---
 src/middleware/content_length.ml |  42 +---
 src/pure/body.ml                 | 332 -------------------------------
 src/pure/inmost.ml               |  84 ++++----
 src/pure/stream.ml               | 311 +++++++++++++++++++++++++++++
 src/pure/stream.mli              |  40 ++++
 9 files changed, 448 insertions(+), 471 deletions(-)
 delete mode 100644 src/pure/body.ml
 create mode 100644 src/pure/stream.ml
 create mode 100644 src/pure/stream.mli

diff --git a/src/dream.ml b/src/dream.ml
index 9a2c80e4..14058753 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -11,12 +11,9 @@ struct
   include Dream__pure.Status
 end
 
+include Dream__pure.Stream
 include Dream__pure.Inmost
 
-(* Eliminate optional arguments from the public interface for now. *)
-let next ~buffer ~close ~exn request =
-  next ~buffer ~close ~exn request
-
 include Dream__middleware.Log
 include Dream__middleware.Log.Make (Ptime_clock)
 (* Initalize logs with the default reporter which uses [Ptime_clock], this
diff --git a/src/dream.mli b/src/dream.mli
index 93b2a705..1cb989b1 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -676,8 +676,7 @@ val all_cookies : request -> (string * string) list
 (** {1 Bodies} *)
 
 val body : 'a message -> string promise
-(** Retrieves the entire body. Retains a reference to the body, so {!Dream.body}
-    can be used multiple times. See example
+(** Retrieves the entire body. See example
     {{:https://github.com/aantron/dream/tree/master/example/6-echo#files}
     [6-echo]}. *)
 
@@ -723,13 +722,20 @@ type buffer =
     - {{:https://github.com/mirage/ocaml-cstruct/blob/9a8b9a79bdfa2a1b8455bc26689e0228cc6fac8e/lib/cstruct.mli#L139}
       [Cstruct.buffer]} in Cstruct. *)
 
+(* TODO What should the body stream retrieval function be called? *)
+(* TODO Remove old functions from signature. *)
+type stream
+
+val body_stream : 'a message -> stream
+
+(* TODO Probably even close can be made optional. exn can be made optional. *)
+(* TODO Argument order? *)
 val next :
-  buffer:(buffer -> int -> int -> unit) ->
-  (* ?string:(string -> int -> int -> unit) ->
-  ?flush:(unit -> unit) -> *)
+  stream ->
+  data:(buffer -> int -> int -> unit) ->
   close:(unit -> unit) ->
+  flush:(unit -> unit) ->
   exn:(exn -> unit) ->
-  request ->
     unit
 (** Waits for the next stream event, and calls:
 
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index d554faed..e5a5fe7a 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -6,6 +6,7 @@
 
 
 module Dream = Dream__pure.Inmost
+module Stream = Dream__pure.Stream
 
 
 
@@ -19,31 +20,26 @@ let address_to_string : Unix.sockaddr -> string = function
 (* TODO Write a test simulating client exit during SSE; this was killing the
    server at some point. *)
 (* TODO LATER Will also need to monitor buffer accumulation and use flush. *)
-(* TODO Rewrite using Dream.next. *)
 let forward_body_general
     (response : Dream.response)
-    (write_string : ?off:int -> ?len:int -> string -> unit)
-    (write_buffer : ?off:int -> ?len:int -> Dream.buffer -> unit)
+    (_write_string : ?off:int -> ?len:int -> string -> unit)
+    (write_buffer : ?off:int -> ?len:int -> Stream.buffer -> unit)
     http_flush
     close =
 
   let rec send () =
-    response
-    |> Dream.next
-      ~buffer
-      ~string
-      ~flush
+    Dream.body_stream response
+    |> fun stream -> Stream.next
+      stream
+      ~data
       ~close
+      ~flush
       ~exn:ignore
 
-  and buffer chunk off len =
+  and data chunk off len =
     write_buffer ~off ~len chunk;
     send ()
 
-  and string chunk off len =
-    write_string ~off ~len chunk;
-    send ()
-
   and flush () =
     http_flush send
 
diff --git a/src/http/http.ml b/src/http/http.ml
index 47fcfc0f..bf4432a1 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -6,6 +6,7 @@
 
 
 module Dream = Dream__pure.Inmost
+module Stream = Dream__pure.Stream
 
 
 
@@ -158,32 +159,21 @@ let wrap_handler
 
     let body =
       Httpaf.Reqd.request_body conn in
-
-    let request : Dream.request =
-      Dream.request_from_http ~app ~client ~method_ ~target ~version ~headers in
-
-    (* TODO Could use a private variant of flush that causes no app-observable
-       side-effects. *)
-    (* TODO It would still help to have a fully pull-based writing API. *)
-    (* TODO The whole body-reading model seems to be broken. How does one detect
-       an exception? *)
-    (* The request body stream. *)
-    Lwt.async begin fun () ->
-      let%lwt () = Dream.flush request in
-      let on_eof () = Dream.close_stream request |> ignore in
-
-      let rec loop () =
+    (* TODO Review per-chunk allocations. *)
+    (* TODO Should the stream be auto-closed? It doesn't even have a closed
+       state. The whole thing is just a wrapper for whatever the http/af
+       behavior is. *)
+    let body =
+      Stream.read_only (fun ~data ~close ~flush:_ ~exn:_ ->
         Httpaf.Body.Reader.schedule_read
           body
-          ~on_eof
-          ~on_read:(fun buffer ~off ~len ->
-            Lwt.on_success
-              (Dream__pure.Body.write_bigstring buffer off len request.body)
-              loop)
-      in
-      loop ();
-      Lwt.return_unit
-    end;
+          ~on_eof:close
+          ~on_read:(fun buffer ~off ~len -> data buffer off len))
+    in
+
+    let request : Dream.request =
+      Dream.request_from_http
+        ~app ~client ~method_ ~target ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -313,26 +303,17 @@ let wrap_handler_h2
 
     let body =
       H2.Reqd.request_body conn in
-
-    let request : Dream.request =
-      Dream.request_from_http ~app ~client ~method_ ~target ~version ~headers in
-
-    Lwt.async begin fun () ->
-      let%lwt () = Dream.flush request in
-      let on_eof () = Dream.close_stream request |> ignore in
-
-      let rec loop () =
+    let body =
+      Stream.read_only (fun ~data ~close ~flush:_ ~exn:_ ->
         H2.Body.schedule_read
           body
-          ~on_eof
-          ~on_read:(fun buffer ~off ~len ->
-            Dream__pure.Body.write_bigstring buffer off len request.body
-            |> ignore;
-            loop ())
-      in
-      loop ();
-      Lwt.return_unit
-    end;
+          ~on_eof:close
+          ~on_read:(fun buffer ~off ~len -> data buffer off len))
+    in
+
+    let request : Dream.request =
+      Dream.request_from_http
+        ~app ~client ~method_ ~target ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
diff --git a/src/middleware/content_length.ml b/src/middleware/content_length.ml
index c252a8d9..549f2e56 100644
--- a/src/middleware/content_length.ml
+++ b/src/middleware/content_length.ml
@@ -9,47 +9,19 @@ module Dream = Dream__pure.Inmost
 
 
 
-(* TODO This belongs in the core module. *)
-(* let add_header response buffered_body =
-  let length =
-    match buffered_body with
-    | `Empty -> 0
-    | `String body -> String.length body
-  in
-  Lwt.return
-    (Dream.add_header "Content-Length" (string_of_int length) response) *)
-
 (* TODO Also mind Connection: close. *)
 (* TODO Test in integration with HTTP/2. *)
+(* TODO This could be renamed transfer_encoding at this point. *)
 (* Add a Content-Length header to HTTP 1.x responses that have a fixed body but
    don't yet have the header. *)
 let content_length next_handler request =
-
   if fst (Dream.version request) <> 1 then
     next_handler request
-
   else
     let%lwt (response : Dream.response) = next_handler request in
-
-    let body_length =
-      match !(response.body) with
-      | `Empty -> Some 0
-      | `String string -> Some (String.length string)
-      | `Stream _ | `Exn _ -> None
-    in
-
-    match body_length with
-    | Some length ->
-      if Dream.has_header "Content-Length" response then
-        Lwt.return response
-      else
-        response
-        |> Dream.add_header "Content-Length" (string_of_int length)
-        |> Lwt.return
-    | None ->
-      if Dream.has_header "Transfer-Encoding" response then
-        Lwt.return response
-      else
-        response
-        |> Dream.add_header "Transfer-Encoding" "chunked"
-        |> Lwt.return
+    if Dream.has_header "Transfer-Encoding" response then
+      Lwt.return response
+    else
+      response
+      |> Dream.add_header "Transfer-Encoding" "chunked"
+      |> Lwt.return
diff --git a/src/pure/body.ml b/src/pure/body.ml
deleted file mode 100644
index 818261c3..00000000
--- a/src/pure/body.ml
+++ /dev/null
@@ -1,332 +0,0 @@
-(* This file is part of Dream, released under the MIT license. See LICENSE.md
-   for details, or visit https://github.com/aantron/dream.
-
-   Copyright 2021 Anton Bachin *)
-
-
-
-type bigstring = Bigstringaf.t
-
-(* The stream representation can be replaced by a record with mutable fields for
-   0-allocation streaming. *)
-type writer =
-  bigstring:(bigstring -> int -> int -> unit) ->
-  string:(string -> int -> int -> unit) ->
-  flush:(unit -> unit) ->
-  close:(unit -> unit) ->
-  exn:(exn -> unit) ->
-    unit
-
-type stream = [
-  | `Idle
-  | `Read of (writer -> unit)
-  | `Write of writer * (exn -> unit)
-]
-
-let stream_read ~bigstring ~string ~flush ~close ~exn stream =
-  match !stream with
-  | `Idle ->
-    stream := `Read (fun writer ->
-      stream := `Idle;
-      writer ~bigstring ~string ~flush ~close ~exn)
-  | `Read _ ->
-    exn (Failure ("Concurrent reads of same stream"))
-  | `Write (writer, _) ->
-    stream := `Idle;
-    writer ~bigstring ~string ~flush ~close ~exn
-
-let bigstring_writer chunk offset length k =
-  fun ~bigstring ~string:_ ~flush:_ ~close:_ ~exn:_ ->
-    bigstring chunk offset length;
-    k ()
-
-let string_writer chunk offset length k =
-  fun ~bigstring:_ ~string ~flush:_ ~close:_ ~exn:_ ->
-    string chunk offset length;
-    k ()
-
-let flush_writer k =
-  fun ~bigstring:_ ~string:_ ~flush ~close:_ ~exn:_ ->
-    flush ();
-    k ()
-
-let close_writer k =
-  fun ~bigstring:_ ~string:_ ~flush:_ ~close ~exn:_ ->
-    close ();
-    k ()
-
-let exn_writer the_exn k =
-  fun ~bigstring:_ ~string:_ ~flush:_ ~close:_ ~exn ->
-    exn the_exn;
-    k ()
-
-let stream_write writer stream k fail =
-  match !stream with
-  | `Idle ->
-    stream := `Write (writer k, fail)
-  | `Read reader ->
-    reader (writer k)
-  | `Write _ ->
-    failwith "Concurrent writes to same stream"
-
-
-
-(* TODO This probably can become a regular variant in the long term. *)
-type body = [
-  | `Empty
-  | `Exn of exn
-  | `String of string
-  | `Stream of stream ref
-]
-
-type body_cell =
-  body ref
-
-let has_body body_cell =
-  match !body_cell with
-  | `Empty -> false
-  | `String "" -> false
-  | `String _ -> true
-  | `Stream _ -> true
-  | `Exn _ -> false
-(* The purpose of storing exceptions is to prevent silent emission of false
-   empty bodies. The exception itself is usually redundant. It would have been
-   reported when it originally occurred. *)
-
-
-
-let body : body_cell -> string Lwt.t = fun body_cell ->
-  match !body_cell with
-  | `Empty ->
-    Lwt.return ""
-
-  | `Exn exn ->
-    Lwt.fail exn
-
-  | `String body ->
-    Lwt.return body
-
-  | `Stream stream ->
-    let promise, resolver = Lwt.wait () in
-
-    let length = ref 0 in
-    let buffer = ref (Bigstringaf.create 4096) in
-
-    let close () =
-      let result = Bigstringaf.to_string (Bigstringaf.sub !buffer ~off:0 ~len:!length) in
-
-      if !length = 0 then
-        body_cell := `Empty
-      else
-        body_cell := `String result;
-
-      Lwt.wakeup_later resolver result
-    in
-
-    let exn the_exn =
-      body_cell := `Exn the_exn;
-      Lwt.wakeup_later_exn resolver the_exn
-    in
-
-    let rec loop () =
-      stream_read ~bigstring ~string ~flush ~close ~exn stream
-
-    and bigstring chunk offset chunk_length =
-      let new_length = !length + chunk_length in
-
-      if new_length > Bigstringaf.length !buffer then begin
-        let new_buffer = Bigstringaf.create (new_length * 2) in
-        Bigstringaf.blit !buffer ~src_off:0 new_buffer ~dst_off:0 ~len:!length;
-        buffer := new_buffer
-      end;
-
-      Bigstringaf.blit chunk ~src_off:offset !buffer ~dst_off:!length ~len:chunk_length;
-      length := new_length;
-
-      loop ()
-
-    and string chunk offset chunk_length =
-      let new_length = !length + chunk_length in
-
-      if new_length > Bigstringaf.length !buffer then begin
-        let new_buffer = Bigstringaf.create (new_length * 2) in
-        Bigstringaf.blit !buffer ~src_off:0 new_buffer ~dst_off:0 ~len:!length;
-        buffer := new_buffer
-      end;
-
-      Bigstringaf.blit_from_bytes
-        (Bytes.unsafe_of_string chunk) ~src_off:offset !buffer ~dst_off:!length ~len:chunk_length;
-      length := new_length;
-
-      loop ()
-
-    and flush () =
-      loop ()
-
-    in
-
-    loop ();
-
-    promise
-
-
-
-let read : body_cell -> string option Lwt.t = fun body_cell ->
-  match !body_cell with
-  | `Empty ->
-    Lwt.return_none
-
-  | `Exn exn ->
-    Lwt.fail exn
-
-  | `String body ->
-    body_cell := `Empty;
-    Lwt.return (Some body)
-
-  | `Stream stream ->
-    let promise, resolver = Lwt.wait () in
-
-    let close () =
-      body_cell := `Empty;
-      Lwt.wakeup_later resolver None
-    in
-
-    let exn the_exn =
-      body_cell := `Exn the_exn;
-      Lwt.wakeup_later_exn resolver the_exn
-    in
-
-    let rec loop () =
-      stream_read ~bigstring ~string ~flush ~close ~exn stream
-
-    and bigstring chunk offset length =
-      Lwt.wakeup_later resolver
-        (Some (Bigstringaf.to_string (Bigstringaf.sub chunk ~off:offset ~len:length)))
-
-    and string chunk offset length =
-      let chunk =
-        if offset = 0 && length = String.length chunk then
-          chunk
-        else
-          String.sub chunk offset length
-      in
-      Lwt.wakeup_later resolver (Some chunk)
-
-    and flush () =
-      loop ()
-
-    in
-
-    loop ();
-
-    promise
-
-
-
-let next
-    ~bigstring
-    ?(string = fun _ _ _ -> ())
-    ?(flush = ignore)
-    ~close
-    ~exn
-    body_cell =
-
-  match !body_cell with
-  | `Empty ->
-    close ()
-
-  | `Exn the_exn ->
-    exn the_exn
-
-  | `String body ->
-    body_cell := `Empty;
-    string body 0 (String.length body)
-
-  | `Stream stream ->
-    stream_read ~bigstring ~string ~flush ~close ~exn stream
-
-
-
-let write string body_cell =
-  match !body_cell with
-  | `Empty | `String _ ->
-    failwith "Write into body that is not a stream; see Dream.with_stream"
-  | `Exn exn ->
-    Lwt.fail exn
-
-  | `Stream stream ->
-    let promise, resolver = Lwt.wait () in
-    stream_write
-      (string_writer string 0 (String.length string))
-      stream
-      (Lwt.wakeup_later resolver)
-      (Lwt.wakeup_later_exn resolver);
-    promise
-
-let flush body_cell =
-  match !body_cell with
-  | `Empty | `String _ ->
-    failwith "Flush of body that is not a stream; see Dream.with_stream"
-
-  | `Exn exn ->
-    Lwt.fail exn
-
-  | `Stream stream ->
-    let promise, resolver = Lwt.wait () in
-    stream_write
-      flush_writer
-      stream
-      (Lwt.wakeup_later resolver)
-      (Lwt.wakeup_later_exn resolver);
-    promise
-
-let close_stream body_cell =
-  match !body_cell with
-  | `Empty | `String _ ->
-    failwith "Close of body that is not a stream; see Dream.with_stream"
-
-  | `Exn exn ->
-    Lwt.fail exn
-
-  | `Stream stream ->
-    let promise, resolver = Lwt.wait () in
-    stream_write
-      close_writer
-      stream
-      (Lwt.wakeup_later resolver)
-      (Lwt.wakeup_later_exn resolver);
-    promise
-
-let write_bigstring bigstring offset length body_cell =
-  match !body_cell with
-  | `Empty | `String _ ->
-    failwith "Write into body that is not a stream; see Dream.with_stream"
-  | `Exn exn ->
-    Lwt.fail exn
-
-  | `Stream stream ->
-    let promise, resolver = Lwt.wait () in
-    stream_write
-      (bigstring_writer bigstring offset length)
-      stream
-      (Lwt.wakeup_later resolver)
-      (Lwt.wakeup_later_exn resolver);
-    promise
-
-
-
-let report exn body_cell =
-  match !body_cell with
-  | `Exn _ ->
-    ()
-
-  | `Empty | `String _ ->
-    body_cell := `Exn exn
-
-  | `Stream stream ->
-    body_cell := `Exn exn;
-    match !stream with
-    | `Write (_, report) -> report exn
-    | _ -> ()
-
-(* TODO Review GC-friendliness. *)
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 333b2b01..1bb1de1e 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -8,8 +8,6 @@
 include Method
 include Status
 
-type buffer = Body.bigstring
-
 (* Used for converting the stream interface of [multipart_form] into the pull
    interface of Dream.
 
@@ -51,7 +49,7 @@ and response = outgoing message
 and 'a message = {
   specific : 'a;
   headers : (string * string) list;
-  body : Body.body_cell;
+  body : Stream.stream;
   locals : Scope.t;
   first : 'a message;
   last : 'a message ref;
@@ -291,13 +289,13 @@ let cookie name request =
   with Not_found -> None *)
 
 let body message =
-  Body.body message.body
+  Stream.body message.body
 
 let read message =
-  Body.read message.body
+  Stream.read message.body
 
-let next ~buffer ?string ?flush ~close ~exn message =
-  Body.next ~bigstring:buffer ?string ?flush ~close ~exn message.body
+let body_stream message =
+  message.body
 
 (* Create a fresh ref. The reason this field has a ref is because it might get
    replaced when a body is forced read. That's not what's happening here - we
@@ -307,36 +305,57 @@ let next ~buffer ?string ?flush ~close ~exn message =
 let with_body body message =
   let body =
     if String.length body = 0 then
-      `Empty
+      Stream.empty
     else
-      `String body
+      Stream.string body
   in
-  update {message with body = ref body}
+  update {message with body}
 
 let with_stream message =
-  update {message with body = ref (`Stream (ref `Idle))}
+  update {message with body = Stream.pipe ()}
 
-(* TODO Can also change order of arguments on Body.write, though it's
-   internal. *)
 let write message chunk =
-  Body.write chunk message.body
+  let promise, resolver = Lwt.wait () in
+  let length = String.length chunk in
+  let buffer = Bigstringaf.of_string ~off:0 ~len:length chunk in
+  (* TODO Better handling of close? But it can't even occur with http/af. *)
+  Stream.write
+    buffer 0 length
+    (Lwt.wakeup_later resolver)
+    (fun () -> Lwt.wakeup_later_exn resolver End_of_file)
+    (Lwt.wakeup_later_exn resolver)
+    message.body;
+  promise
 
 let write_buffer ?(offset = 0) ?length message chunk =
+  let promise, resolver = Lwt.wait () in
   let length =
     match length with
     | Some length -> length
     | None -> Bigstringaf.length chunk - offset
   in
-  Body.write_bigstring chunk offset length message.body
-
+  (* TODO Proper handling of close. *)
+  Stream.write
+    chunk offset length
+    (Lwt.wakeup_later resolver)
+    (Lwt.wakeup_later resolver)
+    (Lwt.wakeup_later_exn resolver)
+    message.body;
+  promise
+
+(* TODO How are remote closes actually handled? There is no way for http/af to
+   report them to the user application through the writer. *)
 let flush message =
-  Body.flush message.body
+  let promise, resolver = Lwt.wait () in
+  Stream.flush
+    (Lwt.wakeup_later resolver)
+    (fun () -> Lwt.wakeup_later_exn resolver End_of_file)
+    (Lwt.wakeup_later_exn resolver)
+    message.body;
+  promise
 
 let close_stream message =
-  Body.close_stream message.body
-
-let has_body message =
-  Body.has_body message.body
+  Stream.close message.body
 
 (* TODO Rename. *)
 let is_websocket response =
@@ -395,7 +414,8 @@ let request_from_http
     ~method_
     ~target
     ~version
-    ~headers =
+    ~headers
+    body =
 
   let path, query = Formats.split_target target in
 
@@ -412,7 +432,7 @@ let request_from_http
       upload = initial_multipart_state ();
     };
     headers;
-    body = ref (`Stream (ref `Idle));
+    body;
     locals = Scope.empty;
     first = request; (* TODO LATER What OCaml version is required for this? *)
     last = ref request;
@@ -438,13 +458,6 @@ let request
      and then immediately replace it. *)
   let path, query = Formats.split_target target in
 
-  let body =
-    if String.length body = 0 then
-      `Empty
-    else
-      `String body
-  in
-
   let rec request = {
     specific = {
       (* TODO Is there a better fake error handler? Maybe this function should
@@ -460,7 +473,7 @@ let request
       upload = initial_multipart_state ();
     };
     headers;
-    body = ref body;
+    body = Stream.string body;
     locals = Scope.empty;
     first = request;
     last = ref request;
@@ -481,20 +494,13 @@ let response
     | None, Some code -> int_to_status code
   in
 
-  let body =
-    if String.length body = 0 then
-      `Empty
-    else
-      `String body
-  in
-
   let rec response = {
     specific = {
       status;
       websocket = None;
     };
     headers;
-    body = ref body;
+    body = Stream.string body;
     locals = Scope.empty;
     first = response;
     last = ref response;
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
new file mode 100644
index 00000000..3c77aea0
--- /dev/null
+++ b/src/pure/stream.ml
@@ -0,0 +1,311 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+type buffer =
+  (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+
+type 'a promise =
+  'a Lwt.t
+
+type reader =
+  data:(buffer -> int -> int -> unit) ->
+  close:(unit -> unit) ->
+  flush:(unit -> unit) ->
+  exn:(exn -> unit) ->
+    unit
+
+type stream = {
+  next :
+    data:(buffer -> int -> int -> unit) ->
+    close:(unit -> unit) ->
+    flush:(unit -> unit) ->
+    exn:(exn -> unit) ->
+      unit;
+
+  (* TODO Needs continuation arguments. Writer feedback is ok, exception,
+     closed. Ok should probably carry an int. *)
+  (* TODO Continuation labels? *)
+  (* TODO Really review these continuations. *)
+  write :
+    buffer -> int -> int ->
+    (unit -> unit) -> (unit -> unit) -> (exn -> unit) ->
+      unit;
+  flush : (unit -> unit) -> (unit -> unit) -> (exn -> unit) -> unit;
+
+  close : (unit -> unit) -> unit;
+}
+
+(* TODO Probably rename next throughout. *)
+(* TODO Raise some exception when writes are attempted. *)
+let read_only next =
+  {
+    next;
+    write = (fun _buffer _offset _length _done _close _exn -> ());
+    flush = (fun _done _close _exn -> ());
+    close = (fun _done -> ());
+  }
+
+let empty =
+  read_only (fun ~data:_ ~close ~flush:_ ~exn:_ -> close ())
+
+(* TODO This shows the awkwardness in string-to-string body reading. *)
+let string s =
+  if String.length s = 0 then
+    empty
+
+  else begin
+    let already_read = ref false in
+    read_only begin fun ~data ~close ~flush:_ ~exn:_ ->
+      if not !already_read then begin
+        already_read := true;
+        let length = String.length s in
+        data (Bigstringaf.of_string ~off:0 ~len:length s) 0 length
+      end
+      else
+        close ()
+    end
+  end
+
+let next stream ~data ~close ~flush ~exn =
+  stream.next ~data ~close ~flush ~exn
+
+(* TODO Can probably save promise allocation if create a separate looping
+   function. *)
+let rec read stream =
+  let promise, resolver = Lwt.wait () in
+
+  begin
+    stream.next
+      ~data:(fun buffer offset length ->
+        Bigstringaf.sub buffer ~off:offset ~len:length
+        |> Bigstringaf.to_string
+        |> Option.some
+        |> Lwt.wakeup_later resolver)
+
+      ~close:(fun () ->
+        Lwt.wakeup_later resolver None)
+
+      ~flush:(fun () ->
+        let next_promise = read stream in
+        Lwt.on_any
+          next_promise
+          (Lwt.wakeup_later resolver)
+          (Lwt.wakeup_later_exn resolver))
+
+      ~exn:(Lwt.wakeup_later_exn resolver)
+  end;
+
+  promise
+
+let body stream =
+  let promise, resolver = Lwt.wait () in
+  let length = ref 0 in
+  let buffer = ref (Bigstringaf.create 4096) in
+
+  let rec loop () =
+    stream.next
+      ~data:(fun chunk offset chunk_length ->
+        let new_length = !length + chunk_length in
+
+        if new_length > Bigstringaf.length !buffer then begin
+          let new_buffer = Bigstringaf.create (new_length * 2) in
+          Bigstringaf.blit
+            !buffer ~src_off:0 new_buffer ~dst_off:0 ~len:!length;
+          buffer := new_buffer
+        end;
+
+        Bigstringaf.blit
+          chunk ~src_off:offset !buffer ~dst_off:!length ~len:chunk_length;
+        length := new_length;
+
+        loop ())
+
+      ~close:(fun () ->
+        Bigstringaf.sub !buffer ~off:0 ~len:!length
+        |> Bigstringaf.to_string
+        |> Lwt.wakeup_later resolver)
+
+      ~flush:loop
+
+      (* TODO Make an effort to eagerly release the buffer? *)
+      ~exn:(Lwt.wakeup_later_exn resolver)
+  in
+  loop ();
+
+  promise
+
+(* TODO Fix. This shouldn't return a promise. *)
+let close stream =
+  stream.close ignore;
+  Lwt.return_unit
+
+let write buffer offset length done_ close exn stream =
+  stream.write buffer offset length done_ close exn
+
+let flush done_ close exn stream =
+  stream.flush done_ close exn
+
+type pipe = {
+  mutable state : [
+    | `Idle
+    | `Reader_waiting
+    | `Writer_waiting
+    | `Closed
+  ];
+
+  mutable read_data_callback : buffer -> int -> int -> unit;
+  mutable read_close_callback : unit -> unit;
+  mutable read_flush_callback : unit -> unit;
+  mutable read_exn_callback : exn -> unit;
+
+  mutable write_kind : [
+    | `Data
+    | `Flush
+    | `Exn
+  ];
+  mutable write_buffer : buffer;
+  mutable write_offset : int;
+  mutable write_length : int;
+  mutable write_done_callback : unit -> unit;
+  mutable write_close_callback : unit -> unit;
+  mutable write_exn_callback : exn -> unit;
+}
+
+let dummy_buffer =
+  Bigstringaf.create 0
+
+let dummy_read_data_callback _buffer _offset _length =
+  ()
+
+let clean_up_reader_fields pipe =
+  pipe.read_data_callback <- dummy_read_data_callback;
+  pipe.read_close_callback <- ignore;
+  pipe.read_flush_callback <- ignore;
+  pipe.read_exn_callback <- ignore
+
+let clean_up_writer_fields pipe =
+  pipe.write_buffer <- dummy_buffer;
+  pipe.write_done_callback <- ignore;
+  pipe.write_close_callback <- ignore;
+  pipe.write_exn_callback <- ignore
+
+let pipe () =
+  let internal = {
+    state = `Idle;
+
+    read_data_callback = dummy_read_data_callback;
+    read_close_callback = ignore;
+    read_flush_callback = ignore;
+    read_exn_callback = ignore;
+
+    write_kind = `Data;
+    write_buffer = dummy_buffer;
+    write_offset = 0;
+    write_length = 0;
+    write_done_callback = ignore;
+    write_close_callback = ignore;
+    write_exn_callback = ignore;
+  } in
+
+  let next ~data ~close ~flush ~exn =
+    match internal.state with
+    | `Idle ->
+      internal.state <- `Reader_waiting;
+      internal.read_data_callback <- data;
+      internal.read_close_callback <- close;
+      internal.read_flush_callback <- flush;
+      internal.read_exn_callback <- exn
+    | `Reader_waiting ->
+      raise (Failure "Stream read: the previous read has not completed")
+    | `Writer_waiting ->
+      internal.state <- `Idle;
+      let write_done_callback = internal.write_done_callback in
+      clean_up_writer_fields internal;
+      begin match internal.write_kind with
+      | `Data ->
+        let buffer = internal.write_buffer in
+        internal.write_buffer <- dummy_buffer;
+        data buffer internal.write_offset internal.write_length;
+        write_done_callback ();
+      | `Flush ->
+        flush ();
+        write_done_callback ();
+      | `Exn ->
+        (* TODO Real exception. *)
+        exn Exit;
+        write_done_callback ();
+      end
+    | `Closed ->
+      close ()
+  in
+
+  (* TODO Callbacks could definitely use labels, based on usage. *)
+  let write buffer offset length done_ close exn =
+    match internal.state with
+    | `Idle ->
+      internal.state <- `Writer_waiting;
+      internal.write_kind <- `Data;
+      internal.write_buffer <- buffer;
+      internal.write_offset <- offset;
+      internal.write_length <- length;
+      internal.write_done_callback <- done_;
+      internal.write_close_callback <- close;
+      internal.write_exn_callback <- exn
+    | `Reader_waiting ->
+      internal.state <- `Idle;
+      let read_data_callback = internal.read_data_callback in
+      clean_up_reader_fields internal;
+      read_data_callback buffer offset length;
+      done_ ()
+    | `Writer_waiting ->
+      raise (Failure "Stream write: the previous write has not completed")
+    | `Closed ->
+      close ()
+  in
+
+  let close done_ =
+    match internal.state with
+    | `Idle ->
+      internal.state <- `Closed;
+      done_ ()
+    | `Reader_waiting ->
+      internal.state <- `Closed;
+      let read_close_callback = internal.read_close_callback in
+      clean_up_reader_fields internal;
+      read_close_callback ();
+      done_ ()
+    | `Writer_waiting ->
+      internal.state <- `Closed;
+      let write_close_callback = internal.write_close_callback in
+      clean_up_writer_fields internal;
+      write_close_callback ();
+      done_ ()
+    | `Closed ->
+      done_ ()
+  in
+
+  let flush done_ close exn =
+    match internal.state with
+    | `Idle ->
+      internal.state <- `Writer_waiting;
+      internal.write_kind <- `Flush;
+      internal.write_done_callback <- done_;
+      internal.write_close_callback <- close;
+      internal.write_exn_callback <- exn
+    | `Reader_waiting ->
+      internal.state <- `Idle;
+      let read_flush_callback = internal.read_flush_callback in
+      clean_up_reader_fields internal;
+      read_flush_callback ();
+      done_ ()
+    | `Writer_waiting ->
+      raise (Failure "Stream flush: the previous write has not completed")
+    | `Closed ->
+      close ()
+  in
+
+  {next; write; flush; close}
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
new file mode 100644
index 00000000..73a0793c
--- /dev/null
+++ b/src/pure/stream.mli
@@ -0,0 +1,40 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+type buffer =
+  (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+
+type 'a promise =
+  'a Lwt.t
+
+type stream
+
+type reader =
+  data:(buffer -> int -> int -> unit) ->
+  close:(unit -> unit) ->
+  flush:(unit -> unit) ->
+  exn:(exn -> unit) ->
+    unit
+
+val read_only : reader -> stream
+val empty : stream
+val string : string -> stream
+val pipe : unit -> stream
+
+(* TODO Rename. *)
+val next : stream -> reader
+val read : stream -> string option promise
+val body : stream -> string promise
+
+(* TODO Wrong signature. *)
+val close : stream -> unit promise
+(* TODO Clarify these signatures. *)
+val write :
+  buffer -> int -> int ->
+  (unit -> unit) -> (unit -> unit) -> (exn -> unit) -> stream ->
+    unit
+val flush : (unit -> unit) -> (unit -> unit) -> (exn -> unit) -> stream -> unit

From 4f5f3c4dcf445a2985f08921979754c6c806156d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 24 Nov 2021 18:37:17 +0300
Subject: [PATCH 019/312] Ability to run separate expect test suites

---
 Makefile                                                    | 6 ++++--
 docs/CONTRIBUTING.md                                        | 5 ++++-
 test/expect/pure/{ => cipher}/cipher.ml                     | 0
 test/expect/pure/cipher/dune                                | 5 +++++
 test/expect/pure/dune                                       | 5 +----
 test/expect/pure/{ => formats/base64}/base64.ml             | 0
 test/expect/pure/formats/base64/dune                        | 5 +++++
 test/expect/pure/{ => formats/cookie}/cookie.ml             | 0
 test/expect/pure/formats/cookie/dune                        | 5 +++++
 test/expect/pure/formats/escape/dune                        | 5 +++++
 test/expect/pure/{ => formats/escape}/escape.ml             | 0
 test/expect/pure/formats/form_urlencoded/dune               | 5 +++++
 .../pure/{ => formats/form_urlencoded}/form_urlencoded.ml   | 0
 test/expect/pure/formats/path/dune                          | 5 +++++
 test/expect/pure/{ => formats/path}/path.ml                 | 0
 test/expect/pure/formats/percent/dune                       | 5 +++++
 test/expect/pure/{ => formats/percent}/percent.ml           | 0
 test/expect/pure/formats/query/dune                         | 5 +++++
 test/expect/pure/{ => formats/query}/query.ml               | 0
 test/expect/pure/formats/target/dune                        | 5 +++++
 test/expect/pure/{ => formats/target}/target.ml             | 0
 test/expect/pure/method/dune                                | 5 +++++
 test/expect/pure/{ => method}/method.ml                     | 0
 test/expect/pure/status/dune                                | 5 +++++
 test/expect/pure/{ => status}/status.ml                     | 0
 test/expect/pure/{body.ml => stream/stream.ml}              | 0
 26 files changed, 64 insertions(+), 7 deletions(-)
 rename test/expect/pure/{ => cipher}/cipher.ml (100%)
 create mode 100644 test/expect/pure/cipher/dune
 rename test/expect/pure/{ => formats/base64}/base64.ml (100%)
 create mode 100644 test/expect/pure/formats/base64/dune
 rename test/expect/pure/{ => formats/cookie}/cookie.ml (100%)
 create mode 100644 test/expect/pure/formats/cookie/dune
 create mode 100644 test/expect/pure/formats/escape/dune
 rename test/expect/pure/{ => formats/escape}/escape.ml (100%)
 create mode 100644 test/expect/pure/formats/form_urlencoded/dune
 rename test/expect/pure/{ => formats/form_urlencoded}/form_urlencoded.ml (100%)
 create mode 100644 test/expect/pure/formats/path/dune
 rename test/expect/pure/{ => formats/path}/path.ml (100%)
 create mode 100644 test/expect/pure/formats/percent/dune
 rename test/expect/pure/{ => formats/percent}/percent.ml (100%)
 create mode 100644 test/expect/pure/formats/query/dune
 rename test/expect/pure/{ => formats/query}/query.ml (100%)
 create mode 100644 test/expect/pure/formats/target/dune
 rename test/expect/pure/{ => formats/target}/target.ml (100%)
 create mode 100644 test/expect/pure/method/dune
 rename test/expect/pure/{ => method}/method.ml (100%)
 create mode 100644 test/expect/pure/status/dune
 rename test/expect/pure/{ => status}/status.ml (100%)
 rename test/expect/pure/{body.ml => stream/stream.ml} (100%)

diff --git a/Makefile b/Makefile
index fcd759a3..2dde57d5 100644
--- a/Makefile
+++ b/Makefile
@@ -6,18 +6,20 @@ build :
 watch :
 	@dune build -p dream --no-print-directory -w
 
+TEST ?= test
+
 .PHONY : test
 test :
 	@find . -name '*.coverage' | xargs rm -f
 	@dune build --no-print-directory \
-	  --instrument-with bisect_ppx --force @test/runtest
+	  --instrument-with bisect_ppx --force @$(TEST)/runtest
 	@bisect-ppx-report html
 	@bisect-ppx-report summary
 	@echo See _coverage/index.html
 
 .PHONY : test-watch
 test-watch :
-	@dune build --no-print-directory -w --root . @test/runtest
+	@dune build --no-print-directory -w --root . @$(TEST)/runtest
 
 .PHONY : coverage-serve
 coverage-serve :
diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
index 7ef48d80..7f344da2 100644
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@@ -65,9 +65,12 @@ You can now add some code that will exercise your change, so you can test it as
 you work. There are two main places for this:
 
 1. The tests in `test/`. They can be run with `make test`. View the generated
-   coverage report in `_coverage/index.html` to see how much the tests exercies
+   coverage report in `_coverage/index.html` to see how much the tests exercise
    your changes.
 
+   To run tests from a single directory, for example `test/expect/pure`, run
+   `make test TEST=test/expect/pure`.
+
 2. The examples in `example/`. I often test changes by modifying an example that
    is almost on topic for the code I'm changing, and then not committing the
    example. In some cases, though, it's easiest to fork or write a new example
diff --git a/test/expect/pure/cipher.ml b/test/expect/pure/cipher/cipher.ml
similarity index 100%
rename from test/expect/pure/cipher.ml
rename to test/expect/pure/cipher/cipher.ml
diff --git a/test/expect/pure/cipher/dune b/test/expect/pure/cipher/dune
new file mode 100644
index 00000000..f6cf5ed5
--- /dev/null
+++ b/test/expect/pure/cipher/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_cipher)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/dune b/test/expect/pure/dune
index 9a9ac159..f0bbebdc 100644
--- a/test/expect/pure/dune
+++ b/test/expect/pure/dune
@@ -10,7 +10,4 @@
   lwt.unix
   ppx_expect.common
   ppx_inline_test.config
-  ppx_expect.config_types
- )
- (inline_tests)
- (preprocess (pps lwt_ppx ppx_expect)))
+  ppx_expect.config_types))
diff --git a/test/expect/pure/base64.ml b/test/expect/pure/formats/base64/base64.ml
similarity index 100%
rename from test/expect/pure/base64.ml
rename to test/expect/pure/formats/base64/base64.ml
diff --git a/test/expect/pure/formats/base64/dune b/test/expect/pure/formats/base64/dune
new file mode 100644
index 00000000..a582ff76
--- /dev/null
+++ b/test/expect/pure/formats/base64/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_base64)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/cookie.ml b/test/expect/pure/formats/cookie/cookie.ml
similarity index 100%
rename from test/expect/pure/cookie.ml
rename to test/expect/pure/formats/cookie/cookie.ml
diff --git a/test/expect/pure/formats/cookie/dune b/test/expect/pure/formats/cookie/dune
new file mode 100644
index 00000000..b7bde4cc
--- /dev/null
+++ b/test/expect/pure/formats/cookie/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_cookie)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/formats/escape/dune b/test/expect/pure/formats/escape/dune
new file mode 100644
index 00000000..869fce07
--- /dev/null
+++ b/test/expect/pure/formats/escape/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_escape)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/escape.ml b/test/expect/pure/formats/escape/escape.ml
similarity index 100%
rename from test/expect/pure/escape.ml
rename to test/expect/pure/formats/escape/escape.ml
diff --git a/test/expect/pure/formats/form_urlencoded/dune b/test/expect/pure/formats/form_urlencoded/dune
new file mode 100644
index 00000000..1f738583
--- /dev/null
+++ b/test/expect/pure/formats/form_urlencoded/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_form_urlencoded)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/form_urlencoded.ml b/test/expect/pure/formats/form_urlencoded/form_urlencoded.ml
similarity index 100%
rename from test/expect/pure/form_urlencoded.ml
rename to test/expect/pure/formats/form_urlencoded/form_urlencoded.ml
diff --git a/test/expect/pure/formats/path/dune b/test/expect/pure/formats/path/dune
new file mode 100644
index 00000000..4ddcd519
--- /dev/null
+++ b/test/expect/pure/formats/path/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_path)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/path.ml b/test/expect/pure/formats/path/path.ml
similarity index 100%
rename from test/expect/pure/path.ml
rename to test/expect/pure/formats/path/path.ml
diff --git a/test/expect/pure/formats/percent/dune b/test/expect/pure/formats/percent/dune
new file mode 100644
index 00000000..dfe1ec6d
--- /dev/null
+++ b/test/expect/pure/formats/percent/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_percent)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/percent.ml b/test/expect/pure/formats/percent/percent.ml
similarity index 100%
rename from test/expect/pure/percent.ml
rename to test/expect/pure/formats/percent/percent.ml
diff --git a/test/expect/pure/formats/query/dune b/test/expect/pure/formats/query/dune
new file mode 100644
index 00000000..985a864d
--- /dev/null
+++ b/test/expect/pure/formats/query/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_query)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/query.ml b/test/expect/pure/formats/query/query.ml
similarity index 100%
rename from test/expect/pure/query.ml
rename to test/expect/pure/formats/query/query.ml
diff --git a/test/expect/pure/formats/target/dune b/test/expect/pure/formats/target/dune
new file mode 100644
index 00000000..11356a55
--- /dev/null
+++ b/test/expect/pure/formats/target/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_target)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/target.ml b/test/expect/pure/formats/target/target.ml
similarity index 100%
rename from test/expect/pure/target.ml
rename to test/expect/pure/formats/target/target.ml
diff --git a/test/expect/pure/method/dune b/test/expect/pure/method/dune
new file mode 100644
index 00000000..2a6ab6c2
--- /dev/null
+++ b/test/expect/pure/method/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_method)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/method.ml b/test/expect/pure/method/method.ml
similarity index 100%
rename from test/expect/pure/method.ml
rename to test/expect/pure/method/method.ml
diff --git a/test/expect/pure/status/dune b/test/expect/pure/status/dune
new file mode 100644
index 00000000..3b64cd2e
--- /dev/null
+++ b/test/expect/pure/status/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_status)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/status.ml b/test/expect/pure/status/status.ml
similarity index 100%
rename from test/expect/pure/status.ml
rename to test/expect/pure/status/status.ml
diff --git a/test/expect/pure/body.ml b/test/expect/pure/stream/stream.ml
similarity index 100%
rename from test/expect/pure/body.ml
rename to test/expect/pure/stream/stream.ml

From f58b8b5cda3dc27cb239d8d65f1dc8ca37ef1a0e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 24 Nov 2021 22:15:11 +0300
Subject: [PATCH 020/312] Begin testing streams

---
 src/pure/stream.ml                |  11 +-
 test/expect/pure/stream/dune      |   5 +
 test/expect/pure/stream/stream.ml | 341 +++++++++++-------------------
 3 files changed, 141 insertions(+), 216 deletions(-)
 create mode 100644 test/expect/pure/stream/dune

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 3c77aea0..461d3871 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -224,18 +224,21 @@ let pipe () =
     | `Writer_waiting ->
       internal.state <- `Idle;
       let write_done_callback = internal.write_done_callback in
-      clean_up_writer_fields internal;
       begin match internal.write_kind with
       | `Data ->
-        let buffer = internal.write_buffer in
-        internal.write_buffer <- dummy_buffer;
-        data buffer internal.write_offset internal.write_length;
+        let buffer = internal.write_buffer
+        and offset = internal.write_offset
+        and length = internal.write_length in
+        clean_up_writer_fields internal;
+        data buffer offset length;
         write_done_callback ();
       | `Flush ->
+        clean_up_writer_fields internal;
         flush ();
         write_done_callback ();
       | `Exn ->
         (* TODO Real exception. *)
+        clean_up_writer_fields internal;
         exn Exit;
         write_done_callback ();
       end
diff --git a/test/expect/pure/stream/dune b/test/expect/pure/stream/dune
new file mode 100644
index 00000000..b012b025
--- /dev/null
+++ b/test/expect/pure/stream/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_stream)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 48ab63b1..c1a869c0 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -5,241 +5,158 @@
 
 
 
-(* let has_body message =
-  Printf.printf "%B\n" (Dream.has_body message)
+module Stream = Dream__pure.Stream
 
-let%expect_test _ =
-  has_body (Dream.response "");
-  has_body (Dream.response "foo");
 
-  Dream.response ""
-  |> Dream.with_body "foo"
-  |> has_body;
 
-  Dream.response "foo"
-  |> Dream.with_body ""
-  |> has_body;
+let read_and_dump stream =
+  Stream.next stream
+    ~data:(fun buffer offset length ->
+      print_string "data: ";
+      Bigstringaf.substring buffer ~off:offset ~len:length
+      |> print_endline)
 
-  Dream.response ""
-  |> Dream.with_stream
-  |> has_body;
-  [%expect {|
-    false
-    true
-    true
-    false
-    true |}] *)
-
-
-
-let string_stream chunks =
-  let chunks = ref chunks in
-  let response = Dream.response "" |> Dream.with_stream in
-  let rec push () =
-    match !chunks with
-    | [] ->
-      Dream.close_stream response
-    | chunk::more ->
-      chunks := more;
-      let%lwt () = Dream.write response chunk in
-      push ()
-  in
-  Lwt.async push;
-  response
-
-let bigstring_stream chunks =
-  let chunks = ref chunks in
-  let response = Dream.response "" |> Dream.with_stream in
-  let rec push () =
-    match !chunks with
-    | [] ->
-      Dream.close_stream response
-    | chunk::more ->
-      chunks := more;
-      let%lwt () = Dream.write_buffer response (Lwt_bytes.of_string chunk) in
-      push ()
-  in
-  Lwt.async push;
-  response
-
-
-
-let body message =
-  Printf.printf "%S\n" (Lwt_main.run (Dream.body message))
+    ~close:(fun () ->
+      print_endline "close")
 
-let%expect_test _ =
-  body (Dream.response "");
-  body (Dream.response "foo");
+    ~flush:(fun () ->
+      print_endline "flush")
 
-  body (Dream.with_body "foo" (Dream.response ""));
-  body (Dream.with_body "" (Dream.response "foo"));
+    ~exn:(fun _ ->
+      print_endline "exn")
 
-  body (string_stream []);
-  body (string_stream ["foo"]);
-  body (string_stream ["foo"; "bar"]);
 
-  body (bigstring_stream []);
-  body (bigstring_stream ["foo"]);
-  body (bigstring_stream ["foo"; "bar"]);
-  body (bigstring_stream [String.make 4097 'a'; "foo"]);
-  body (bigstring_stream ["foo"; String.make 4097 'a']);
+
+(* Read-only streams. *)
+
+let%expect_test _ =
+  let stream = Stream.empty in
+  read_and_dump stream;
+  read_and_dump stream;
   [%expect {|
-    ""
-    "foo"
-    "foo"
-    ""
-    ""
-    "foo"
-    "foobar"
-    ""
-    "foo"
-    "foobar"
-    "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaafoo"
-    "fooaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |}]
-
-
-
-let read message =
-  let message : Dream.request = Obj.magic message in
-  let rec read accumulator =
-    match%lwt Dream.read message with
-    | None -> Lwt.return (List.rev accumulator)
-    | Some chunk -> read (chunk::accumulator)
-  in
-  Lwt_main.run (read [])
-  |> List.map (Printf.sprintf "%S")
-  |> String.concat "; "
-  |> Printf.printf "[%s]\n"
+    close
+    close |}]
 
 let%expect_test _ =
-  read (Dream.response "");
-  read (Dream.response "foo");
-
-  read (Dream.with_body "foo" (Dream.response ""));
-  read (Dream.with_body "" (Dream.response "foo"));
-
-  read (string_stream []);
-  read (string_stream [""]);
-  read (string_stream ["foo"]);
-  read (string_stream ["foo"; "bar"]);
-
-  read (bigstring_stream []);
-  read (bigstring_stream [""]);
-  read (bigstring_stream ["foo"]);
-  read (bigstring_stream ["foo"; "bar"]);
-  read (bigstring_stream [String.make 4097 'a'; "foo"]);
-  read (bigstring_stream ["foo"; String.make 4097 'a']);
+  let stream = Stream.string "foo" in
+  read_and_dump stream;
+  read_and_dump stream;
+  read_and_dump stream;
   [%expect {|
-    []
-    ["foo"]
-    ["foo"]
-    []
-    []
-    [""]
-    ["foo"]
-    ["foo"; "bar"]
-    []
-    [""]
-    ["foo"]
-    ["foo"; "bar"]
-    ["aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; "foo"]
-    ["foo"; "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"] |}]
-
-
-
-let next message =
-  let until_done, signal_done = Lwt.wait () in
-  let rec next accumulator =
-    Dream__pure.Inmost.next
-      ~buffer:(fun data start length ->
-        next
-          ((Lwt_bytes.to_string
-            (Lwt_bytes.proxy data start length))::accumulator))
-      ~string:(fun data start length ->
-        next
-          ((String.sub data start length)::accumulator))
-      ~close:(fun () -> Lwt.wakeup_later signal_done (List.rev accumulator))
-      ~exn:ignore
-      (Obj.magic message)
-  in
-  next [];
-  Lwt_main.run until_done
-  |> List.map (Printf.sprintf "%S")
-  |> String.concat "; "
-  |> Printf.printf "[%s]\n"
+    data: foo
+    close
+    close |}]
 
 let%expect_test _ =
-  next (Dream.response "");
-  next (Dream.response "foo");
-
-  next (Dream.with_body "foo" (Dream.response ""));
-  next (Dream.with_body "" (Dream.response "foo"));
-
-  next (string_stream []);
-  next (string_stream [""]);
-  next (string_stream ["foo"]);
-  next (string_stream ["foo"; "bar"]);
-
-  next (bigstring_stream []);
-  next (bigstring_stream [""]);
-  next (bigstring_stream ["foo"]);
-  next (bigstring_stream ["foo"; "bar"]);
-  next (bigstring_stream [String.make 4097 'a'; "foo"]);
-  next (bigstring_stream ["foo"; String.make 4097 'a']);
+  let stream = Stream.string "" in
+  read_and_dump stream;
+  read_and_dump stream;
   [%expect {|
-    []
-    ["foo"]
-    ["foo"]
-    []
-    []
-    [""]
-    ["foo"]
-    ["foo"; "bar"]
-    []
-    [""]
-    ["foo"]
-    ["foo"; "bar"]
-    ["aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; "foo"]
-    ["foo"; "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"] |}]
+    close
+    close |}]
 
 
 
+(* Pipe: double read. *)
+
 let%expect_test _ =
-  let message = Dream.response "foo" in
-  read message;
-  read message;
+  let stream = Stream.pipe () in
+  read_and_dump stream;
+  try read_and_dump stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn);
+  [%expect {| (Failure "Stream read: the previous read has not completed") |}]
+
+
 
-  let message = string_stream ["foo"] in
-  read message;
-  read message;
+(* Pipe: interactions between read and close. *)
+
+let%expect_test _ =
+  let stream = Stream.pipe () in
+  read_and_dump stream;
+  print_endline "checkpoint 1";
+  (* TODO Check that the callback is called. *)
+  Stream.close stream |> ignore;
+  print_endline "checkpoint 2";
+  read_and_dump stream;
+  print_endline "checkpoint 3";
+  Stream.close stream |> ignore;
+  [%expect {|
+    checkpoint 1
+    close
+    checkpoint 2
+    close
+    checkpoint 3 |}]
 
-  let message = bigstring_stream ["foo"] in
-  read message;
-  read message;
+let%expect_test _ =
+  let stream = Stream.pipe () in
+  Stream.close stream |> ignore;
+  read_and_dump stream;
+  read_and_dump stream;
   [%expect {|
-    ["foo"]
-    []
-    ["foo"]
-    []
-    ["foo"]
-    [] |}]
+    close
+    close |}]
+
+
+
+(* Pipe: interactions between read and flush. *)
 
 let%expect_test _ =
-  let message = Dream.response "foo" in
-  next message;
-  next message;
-
-  (* TODO This is broken at the moment! *)
-  (* let message = string_stream ["foo"] in
-  next message;
-  next message;
-
-  let message = bigstring_stream ["foo"] in
-  next message;
-  next message; *)
+  let stream = Stream.pipe () in
+  read_and_dump stream;
+  print_endline "checkpoint 1";
+  (* TODO Check the callbacks are called. *)
+  Stream.flush ignore ignore ignore stream;
+  Stream.flush ignore ignore ignore stream;
+  print_endline "checkpoint 2";
+  read_and_dump stream;
+  Stream.flush ignore ignore ignore stream;
+  try Stream.flush ignore ignore ignore stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
-    ["foo"]
-    [] |}]
+    checkpoint 1
+    flush
+    checkpoint 2
+    flush
+    (Failure "Stream flush: the previous write has not completed") |}]
+
 
-(* TODO Test flush, exception passing, report. *)
-(* TODO Test concurrent readers, writers. *)
+
+(* Pipe: interactions between read and write. *)
+
+let buffer =
+  Bigstringaf.of_string ~off:0 ~len:3 "foo"
+
+let%expect_test _ =
+  let stream = Stream.pipe () in
+  read_and_dump stream;
+  print_endline "checkpoint 1";
+  (* TODO Check the callbacks are called. *)
+  Stream.write buffer 0 3 ignore ignore ignore stream;
+  Stream.write buffer 1 1 ignore ignore ignore stream;
+  print_endline "checkpoint 2";
+  read_and_dump stream;
+  Stream.write buffer 0 3 ignore ignore ignore stream;
+  try Stream.write buffer 0 3 ignore ignore ignore stream;
+  with Failure _ as exn -> print_endline (Printexc.to_string exn);
+  [%expect {|
+    checkpoint 1
+    data: foo
+    checkpoint 2
+    data: o
+    (Failure "Stream write: the previous write has not completed") |}]
+
+
+
+(* TODO: Test:
+
+- Writing to a read-only stream. Flushing, etc.
+- Early close of read-only streams or any other streams by the reader.
+- The generic read_only needs to take a close callback in addition to the
+  reader.
+- Stream.string needs to be able to abort the string by providing an appropriate
+  such callback.
+- Have the string stream release the string eagerly after it is read.
+- Interactions between writers (including flush) and close. This will benefit
+  from clarifying the writers' callbacks.
+- The higher-level reading helpers.
+*)

From 6ece622f97d6afecfad51981a7b8e603d5a1b155 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 25 Nov 2021 15:03:48 +0300
Subject: [PATCH 021/312] Stream: rename reader functions

---
 src/http/adapt.ml                 |  2 +-
 src/pure/inmost.ml                |  9 +++++++--
 src/pure/stream.ml                | 27 +++++++++++++--------------
 src/pure/stream.mli               | 11 +++++------
 test/expect/pure/stream/stream.ml |  2 +-
 5 files changed, 27 insertions(+), 24 deletions(-)

diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index e5a5fe7a..29414103 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -29,7 +29,7 @@ let forward_body_general
 
   let rec send () =
     Dream.body_stream response
-    |> fun stream -> Stream.next
+    |> fun stream -> Stream.read
       stream
       ~data
       ~close
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 1bb1de1e..1f1cdde7 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -289,14 +289,19 @@ let cookie name request =
   with Not_found -> None *)
 
 let body message =
-  Stream.body message.body
+  Stream.read_until_close message.body
 
 let read message =
-  Stream.read message.body
+  Stream.read_convenience message.body
 
 let body_stream message =
   message.body
 
+(* TODO Pending the dream.mli interface reorganization for the new stream
+   API. *)
+let next =
+  Stream.read
+
 (* Create a fresh ref. The reason this field has a ref is because it might get
    replaced when a body is forced read. That's not what's happening here - we
    are setting a new body. Indeed, there might be a concurrent read going on.
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 461d3871..2f84e7aa 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -11,7 +11,7 @@ type buffer =
 type 'a promise =
   'a Lwt.t
 
-type reader =
+type read =
   data:(buffer -> int -> int -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
@@ -19,7 +19,7 @@ type reader =
     unit
 
 type stream = {
-  next :
+  read :
     data:(buffer -> int -> int -> unit) ->
     close:(unit -> unit) ->
     flush:(unit -> unit) ->
@@ -39,11 +39,10 @@ type stream = {
   close : (unit -> unit) -> unit;
 }
 
-(* TODO Probably rename next throughout. *)
 (* TODO Raise some exception when writes are attempted. *)
-let read_only next =
+let read_only read =
   {
-    next;
+    read;
     write = (fun _buffer _offset _length _done _close _exn -> ());
     flush = (fun _done _close _exn -> ());
     close = (fun _done -> ());
@@ -70,16 +69,16 @@ let string s =
     end
   end
 
-let next stream ~data ~close ~flush ~exn =
-  stream.next ~data ~close ~flush ~exn
+let read stream ~data ~close ~flush ~exn =
+  stream.read ~data ~close ~flush ~exn
 
 (* TODO Can probably save promise allocation if create a separate looping
    function. *)
-let rec read stream =
+let rec read_convenience stream =
   let promise, resolver = Lwt.wait () in
 
   begin
-    stream.next
+    stream.read
       ~data:(fun buffer offset length ->
         Bigstringaf.sub buffer ~off:offset ~len:length
         |> Bigstringaf.to_string
@@ -90,7 +89,7 @@ let rec read stream =
         Lwt.wakeup_later resolver None)
 
       ~flush:(fun () ->
-        let next_promise = read stream in
+        let next_promise = read_convenience stream in
         Lwt.on_any
           next_promise
           (Lwt.wakeup_later resolver)
@@ -101,13 +100,13 @@ let rec read stream =
 
   promise
 
-let body stream =
+let read_until_close stream =
   let promise, resolver = Lwt.wait () in
   let length = ref 0 in
   let buffer = ref (Bigstringaf.create 4096) in
 
   let rec loop () =
-    stream.next
+    stream.read
       ~data:(fun chunk offset chunk_length ->
         let new_length = !length + chunk_length in
 
@@ -211,7 +210,7 @@ let pipe () =
     write_exn_callback = ignore;
   } in
 
-  let next ~data ~close ~flush ~exn =
+  let read ~data ~close ~flush ~exn =
     match internal.state with
     | `Idle ->
       internal.state <- `Reader_waiting;
@@ -311,4 +310,4 @@ let pipe () =
       close ()
   in
 
-  {next; write; flush; close}
+  {read; write; flush; close}
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 73a0793c..0ef86008 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -13,22 +13,21 @@ type 'a promise =
 
 type stream
 
-type reader =
+type read =
   data:(buffer -> int -> int -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
   exn:(exn -> unit) ->
     unit
 
-val read_only : reader -> stream
+val read_only : read -> stream
 val empty : stream
 val string : string -> stream
 val pipe : unit -> stream
 
-(* TODO Rename. *)
-val next : stream -> reader
-val read : stream -> string option promise
-val body : stream -> string promise
+val read : stream -> read
+val read_convenience : stream -> string option promise
+val read_until_close : stream -> string promise
 
 (* TODO Wrong signature. *)
 val close : stream -> unit promise
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index c1a869c0..f9de5873 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -10,7 +10,7 @@ module Stream = Dream__pure.Stream
 
 
 let read_and_dump stream =
-  Stream.next stream
+  Stream.read stream
     ~data:(fun buffer offset length ->
       print_string "data: ";
       Bigstringaf.substring buffer ~off:offset ~len:length

From df4f4b630089d920dcbf9f6c05f0e8064b0966fa Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 25 Nov 2021 15:25:14 +0300
Subject: [PATCH 022/312] Equip read-only streams with a close callback

---
 src/http/http.ml                  | 30 +++++++++-------
 src/pure/stream.ml                | 57 +++++++++++++++++--------------
 src/pure/stream.mli               |  2 +-
 test/expect/pure/stream/stream.ml | 18 ++++++++++
 4 files changed, 69 insertions(+), 38 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index bf4432a1..467d1801 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -163,13 +163,16 @@ let wrap_handler
     (* TODO Should the stream be auto-closed? It doesn't even have a closed
        state. The whole thing is just a wrapper for whatever the http/af
        behavior is. *)
-    let body =
-      Stream.read_only (fun ~data ~close ~flush:_ ~exn:_ ->
-        Httpaf.Body.Reader.schedule_read
-          body
-          ~on_eof:close
-          ~on_read:(fun buffer ~off ~len -> data buffer off len))
+    let read ~data ~close ~flush:_ ~exn:_ =
+      Httpaf.Body.Reader.schedule_read
+        body
+        ~on_eof:close
+        ~on_read:(fun buffer ~off ~len -> data buffer off len)
     in
+    let close () =
+      Httpaf.Body.Reader.close body in
+    let body =
+      Stream.read_only ~read ~close in
 
     let request : Dream.request =
       Dream.request_from_http
@@ -303,13 +306,16 @@ let wrap_handler_h2
 
     let body =
       H2.Reqd.request_body conn in
-    let body =
-      Stream.read_only (fun ~data ~close ~flush:_ ~exn:_ ->
-        H2.Body.schedule_read
-          body
-          ~on_eof:close
-          ~on_read:(fun buffer ~off ~len -> data buffer off len))
+    let read ~data ~close ~flush:_ ~exn:_ =
+      H2.Body.schedule_read
+        body
+        ~on_eof:close
+        ~on_read:(fun buffer ~off ~len -> data buffer off len)
     in
+    let close () =
+      H2.Body.close_reader body in
+    let body =
+      Stream.read_only ~read ~close in
 
     let request : Dream.request =
       Dream.request_from_http
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 2f84e7aa..8f10ff13 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -36,37 +36,47 @@ type stream = {
       unit;
   flush : (unit -> unit) -> (unit -> unit) -> (exn -> unit) -> unit;
 
-  close : (unit -> unit) -> unit;
+  close : unit -> unit;
 }
 
 (* TODO Raise some exception when writes are attempted. *)
-let read_only read =
+let read_only ~read ~close =
   {
     read;
     write = (fun _buffer _offset _length _done _close _exn -> ());
     flush = (fun _done _close _exn -> ());
-    close = (fun _done -> ());
+    close;
   }
 
 let empty =
-  read_only (fun ~data:_ ~close ~flush:_ ~exn:_ -> close ())
+  read_only
+    ~read:(fun ~data:_ ~close ~flush:_ ~exn:_ -> close ())
+    ~close:ignore
 
 (* TODO This shows the awkwardness in string-to-string body reading. *)
-let string s =
-  if String.length s = 0 then
+let string the_string =
+  if String.length the_string = 0 then
     empty
-
   else begin
-    let already_read = ref false in
-    read_only begin fun ~data ~close ~flush:_ ~exn:_ ->
-      if not !already_read then begin
-        already_read := true;
-        let length = String.length s in
-        data (Bigstringaf.of_string ~off:0 ~len:length s) 0 length
-      end
-      else
+    (* Storing the string in a ref here so that we can "lose" it eagerly once
+       the stream is closed, making the memory available to the GC. *)
+    let string_ref = ref (Some the_string) in
+
+    let read ~data ~close ~flush:_ ~exn:_ =
+      match !string_ref with
+      | Some stored_string ->
+        string_ref := None;
+        let length = String.length stored_string in
+        data (Bigstringaf.of_string ~off:0 ~len:length stored_string) 0 length
+      | None ->
         close ()
-    end
+    in
+
+    let close () =
+      string_ref := None;
+    in
+
+    read_only ~read ~close
   end
 
 let read stream ~data ~close ~flush ~exn =
@@ -139,7 +149,7 @@ let read_until_close stream =
 
 (* TODO Fix. This shouldn't return a promise. *)
 let close stream =
-  stream.close ignore;
+  stream.close ();
   Lwt.return_unit
 
 let write buffer offset length done_ close exn stream =
@@ -269,25 +279,22 @@ let pipe () =
       close ()
   in
 
-  let close done_ =
+  let close () =
     match internal.state with
     | `Idle ->
-      internal.state <- `Closed;
-      done_ ()
+      internal.state <- `Closed
     | `Reader_waiting ->
       internal.state <- `Closed;
       let read_close_callback = internal.read_close_callback in
       clean_up_reader_fields internal;
-      read_close_callback ();
-      done_ ()
+      read_close_callback ()
     | `Writer_waiting ->
       internal.state <- `Closed;
       let write_close_callback = internal.write_close_callback in
       clean_up_writer_fields internal;
-      write_close_callback ();
-      done_ ()
+      write_close_callback ()
     | `Closed ->
-      done_ ()
+      ()
   in
 
   let flush done_ close exn =
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 0ef86008..cd0526d1 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -20,7 +20,7 @@ type read =
   exn:(exn -> unit) ->
     unit
 
-val read_only : read -> stream
+val read_only : read:read -> close:(unit -> unit) -> stream
 val empty : stream
 val string : string -> stream
 val pipe : unit -> stream
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index f9de5873..76723111 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -33,18 +33,30 @@ let%expect_test _ =
   let stream = Stream.empty in
   read_and_dump stream;
   read_and_dump stream;
+  Stream.close stream |> ignore;
+  read_and_dump stream;
   [%expect {|
+    close
     close
     close |}]
 
+let%expect_test _ =
+  let stream = Stream.empty in
+  Stream.close stream |> ignore;
+  read_and_dump stream;
+  [%expect {| close |}]
+
 let%expect_test _ =
   let stream = Stream.string "foo" in
   read_and_dump stream;
   read_and_dump stream;
   read_and_dump stream;
+  Stream.close stream |> ignore;
+  read_and_dump stream;
   [%expect {|
     data: foo
     close
+    close
     close |}]
 
 let%expect_test _ =
@@ -55,6 +67,12 @@ let%expect_test _ =
     close
     close |}]
 
+let%expect_test _ =
+  let stream = Stream.string "foo" in
+  Stream.close stream |> ignore;
+  read_and_dump stream;
+  [%expect {| close |}]
+
 
 
 (* Pipe: double read. *)

From 6ab46c32264a765a5ef3087026f58db9697336db Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 25 Nov 2021 15:28:56 +0300
Subject: [PATCH 023/312] Stream.close shouldn't evaluate to a promise

---
 src/pure/inmost.ml                |  3 ++-
 src/pure/stream.ml                |  4 +---
 src/pure/stream.mli               |  4 ++--
 test/expect/pure/stream/stream.ml | 14 +++++++-------
 4 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 1f1cdde7..ce88567f 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -360,7 +360,8 @@ let flush message =
   promise
 
 let close_stream message =
-  Stream.close message.body
+  Stream.close message.body;
+  Lwt.return_unit
 
 (* TODO Rename. *)
 let is_websocket response =
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 8f10ff13..09f33a27 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -147,10 +147,8 @@ let read_until_close stream =
 
   promise
 
-(* TODO Fix. This shouldn't return a promise. *)
 let close stream =
-  stream.close ();
-  Lwt.return_unit
+  stream.close ()
 
 let write buffer offset length done_ close exn stream =
   stream.write buffer offset length done_ close exn
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index cd0526d1..55c810a5 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -25,12 +25,12 @@ val empty : stream
 val string : string -> stream
 val pipe : unit -> stream
 
+val close : stream -> unit
+
 val read : stream -> read
 val read_convenience : stream -> string option promise
 val read_until_close : stream -> string promise
 
-(* TODO Wrong signature. *)
-val close : stream -> unit promise
 (* TODO Clarify these signatures. *)
 val write :
   buffer -> int -> int ->
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 76723111..6de69a55 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -33,7 +33,7 @@ let%expect_test _ =
   let stream = Stream.empty in
   read_and_dump stream;
   read_and_dump stream;
-  Stream.close stream |> ignore;
+  Stream.close stream;
   read_and_dump stream;
   [%expect {|
     close
@@ -42,7 +42,7 @@ let%expect_test _ =
 
 let%expect_test _ =
   let stream = Stream.empty in
-  Stream.close stream |> ignore;
+  Stream.close stream;
   read_and_dump stream;
   [%expect {| close |}]
 
@@ -51,7 +51,7 @@ let%expect_test _ =
   read_and_dump stream;
   read_and_dump stream;
   read_and_dump stream;
-  Stream.close stream |> ignore;
+  Stream.close stream;
   read_and_dump stream;
   [%expect {|
     data: foo
@@ -69,7 +69,7 @@ let%expect_test _ =
 
 let%expect_test _ =
   let stream = Stream.string "foo" in
-  Stream.close stream |> ignore;
+  Stream.close stream;
   read_and_dump stream;
   [%expect {| close |}]
 
@@ -93,11 +93,11 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   (* TODO Check that the callback is called. *)
-  Stream.close stream |> ignore;
+  Stream.close stream;
   print_endline "checkpoint 2";
   read_and_dump stream;
   print_endline "checkpoint 3";
-  Stream.close stream |> ignore;
+  Stream.close stream;
   [%expect {|
     checkpoint 1
     close
@@ -107,7 +107,7 @@ let%expect_test _ =
 
 let%expect_test _ =
   let stream = Stream.pipe () in
-  Stream.close stream |> ignore;
+  Stream.close stream;
   read_and_dump stream;
   read_and_dump stream;
   [%expect {|

From 2b57a463c62f50366877ba4402fdd69cdbbd9c73 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 25 Nov 2021 19:15:27 +0300
Subject: [PATCH 024/312] Don't pass exceptions through streams for now

---
 src/dream.mli                     |  1 -
 src/http/adapt.ml                 |  1 -
 src/http/http.ml                  |  4 +-
 src/pure/inmost.ml                |  3 --
 src/pure/stream.ml                | 69 ++++++++++---------------------
 src/pure/stream.mli               |  7 +---
 test/expect/pure/stream/stream.ml | 19 ++++-----
 7 files changed, 34 insertions(+), 70 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 1cb989b1..a8d3ba38 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -735,7 +735,6 @@ val next :
   data:(buffer -> int -> int -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
-  exn:(exn -> unit) ->
     unit
 (** Waits for the next stream event, and calls:
 
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index 29414103..c98ffbaa 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -34,7 +34,6 @@ let forward_body_general
       ~data
       ~close
       ~flush
-      ~exn:ignore
 
   and data chunk off len =
     write_buffer ~off ~len chunk;
diff --git a/src/http/http.ml b/src/http/http.ml
index 467d1801..90ac64c1 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -163,7 +163,7 @@ let wrap_handler
     (* TODO Should the stream be auto-closed? It doesn't even have a closed
        state. The whole thing is just a wrapper for whatever the http/af
        behavior is. *)
-    let read ~data ~close ~flush:_ ~exn:_ =
+    let read ~data ~close ~flush:_ =
       Httpaf.Body.Reader.schedule_read
         body
         ~on_eof:close
@@ -306,7 +306,7 @@ let wrap_handler_h2
 
     let body =
       H2.Reqd.request_body conn in
-    let read ~data ~close ~flush:_ ~exn:_ =
+    let read ~data ~close ~flush:_ =
       H2.Body.schedule_read
         body
         ~on_eof:close
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index ce88567f..4a97c2ea 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -328,7 +328,6 @@ let write message chunk =
     buffer 0 length
     (Lwt.wakeup_later resolver)
     (fun () -> Lwt.wakeup_later_exn resolver End_of_file)
-    (Lwt.wakeup_later_exn resolver)
     message.body;
   promise
 
@@ -344,7 +343,6 @@ let write_buffer ?(offset = 0) ?length message chunk =
     chunk offset length
     (Lwt.wakeup_later resolver)
     (Lwt.wakeup_later resolver)
-    (Lwt.wakeup_later_exn resolver)
     message.body;
   promise
 
@@ -355,7 +353,6 @@ let flush message =
   Stream.flush
     (Lwt.wakeup_later resolver)
     (fun () -> Lwt.wakeup_later_exn resolver End_of_file)
-    (Lwt.wakeup_later_exn resolver)
     message.body;
   promise
 
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 09f33a27..fd0a7836 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -15,7 +15,6 @@ type read =
   data:(buffer -> int -> int -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
-  exn:(exn -> unit) ->
     unit
 
 type stream = {
@@ -23,18 +22,14 @@ type stream = {
     data:(buffer -> int -> int -> unit) ->
     close:(unit -> unit) ->
     flush:(unit -> unit) ->
-    exn:(exn -> unit) ->
       unit;
 
   (* TODO Needs continuation arguments. Writer feedback is ok, exception,
      closed. Ok should probably carry an int. *)
   (* TODO Continuation labels? *)
   (* TODO Really review these continuations. *)
-  write :
-    buffer -> int -> int ->
-    (unit -> unit) -> (unit -> unit) -> (exn -> unit) ->
-      unit;
-  flush : (unit -> unit) -> (unit -> unit) -> (exn -> unit) -> unit;
+  write : buffer -> int -> int -> (unit -> unit) -> (unit -> unit) -> unit;
+  flush : (unit -> unit) -> (unit -> unit) -> unit;
 
   close : unit -> unit;
 }
@@ -43,14 +38,14 @@ type stream = {
 let read_only ~read ~close =
   {
     read;
-    write = (fun _buffer _offset _length _done _close _exn -> ());
-    flush = (fun _done _close _exn -> ());
+    write = (fun _buffer _offset _length _done _close -> ());
+    flush = (fun _done _close -> ());
     close;
   }
 
 let empty =
   read_only
-    ~read:(fun ~data:_ ~close ~flush:_ ~exn:_ -> close ())
+    ~read:(fun ~data:_ ~close ~flush:_ -> close ())
     ~close:ignore
 
 (* TODO This shows the awkwardness in string-to-string body reading. *)
@@ -62,7 +57,7 @@ let string the_string =
        the stream is closed, making the memory available to the GC. *)
     let string_ref = ref (Some the_string) in
 
-    let read ~data ~close ~flush:_ ~exn:_ =
+    let read ~data ~close ~flush:_ =
       match !string_ref with
       | Some stored_string ->
         string_ref := None;
@@ -79,8 +74,8 @@ let string the_string =
     read_only ~read ~close
   end
 
-let read stream ~data ~close ~flush ~exn =
-  stream.read ~data ~close ~flush ~exn
+let read stream ~data ~close ~flush =
+  stream.read ~data ~close ~flush
 
 (* TODO Can probably save promise allocation if create a separate looping
    function. *)
@@ -104,8 +99,6 @@ let rec read_convenience stream =
           next_promise
           (Lwt.wakeup_later resolver)
           (Lwt.wakeup_later_exn resolver))
-
-      ~exn:(Lwt.wakeup_later_exn resolver)
   end;
 
   promise
@@ -139,9 +132,6 @@ let read_until_close stream =
         |> Lwt.wakeup_later resolver)
 
       ~flush:loop
-
-      (* TODO Make an effort to eagerly release the buffer? *)
-      ~exn:(Lwt.wakeup_later_exn resolver)
   in
   loop ();
 
@@ -150,11 +140,11 @@ let read_until_close stream =
 let close stream =
   stream.close ()
 
-let write buffer offset length done_ close exn stream =
-  stream.write buffer offset length done_ close exn
+let write buffer offset length done_ close stream =
+  stream.write buffer offset length done_ close
 
-let flush done_ close exn stream =
-  stream.flush done_ close exn
+let flush done_ close stream =
+  stream.flush done_ close
 
 type pipe = {
   mutable state : [
@@ -167,19 +157,16 @@ type pipe = {
   mutable read_data_callback : buffer -> int -> int -> unit;
   mutable read_close_callback : unit -> unit;
   mutable read_flush_callback : unit -> unit;
-  mutable read_exn_callback : exn -> unit;
 
   mutable write_kind : [
     | `Data
     | `Flush
-    | `Exn
   ];
   mutable write_buffer : buffer;
   mutable write_offset : int;
   mutable write_length : int;
   mutable write_done_callback : unit -> unit;
   mutable write_close_callback : unit -> unit;
-  mutable write_exn_callback : exn -> unit;
 }
 
 let dummy_buffer =
@@ -191,14 +178,12 @@ let dummy_read_data_callback _buffer _offset _length =
 let clean_up_reader_fields pipe =
   pipe.read_data_callback <- dummy_read_data_callback;
   pipe.read_close_callback <- ignore;
-  pipe.read_flush_callback <- ignore;
-  pipe.read_exn_callback <- ignore
+  pipe.read_flush_callback <- ignore
 
 let clean_up_writer_fields pipe =
   pipe.write_buffer <- dummy_buffer;
   pipe.write_done_callback <- ignore;
-  pipe.write_close_callback <- ignore;
-  pipe.write_exn_callback <- ignore
+  pipe.write_close_callback <- ignore
 
 let pipe () =
   let internal = {
@@ -207,7 +192,6 @@ let pipe () =
     read_data_callback = dummy_read_data_callback;
     read_close_callback = ignore;
     read_flush_callback = ignore;
-    read_exn_callback = ignore;
 
     write_kind = `Data;
     write_buffer = dummy_buffer;
@@ -215,17 +199,15 @@ let pipe () =
     write_length = 0;
     write_done_callback = ignore;
     write_close_callback = ignore;
-    write_exn_callback = ignore;
   } in
 
-  let read ~data ~close ~flush ~exn =
+  let read ~data ~close ~flush =
     match internal.state with
     | `Idle ->
       internal.state <- `Reader_waiting;
       internal.read_data_callback <- data;
       internal.read_close_callback <- close;
-      internal.read_flush_callback <- flush;
-      internal.read_exn_callback <- exn
+      internal.read_flush_callback <- flush
     | `Reader_waiting ->
       raise (Failure "Stream read: the previous read has not completed")
     | `Writer_waiting ->
@@ -238,23 +220,18 @@ let pipe () =
         and length = internal.write_length in
         clean_up_writer_fields internal;
         data buffer offset length;
-        write_done_callback ();
+        write_done_callback ()
       | `Flush ->
         clean_up_writer_fields internal;
         flush ();
-        write_done_callback ();
-      | `Exn ->
-        (* TODO Real exception. *)
-        clean_up_writer_fields internal;
-        exn Exit;
-        write_done_callback ();
+        write_done_callback ()
       end
     | `Closed ->
       close ()
   in
 
   (* TODO Callbacks could definitely use labels, based on usage. *)
-  let write buffer offset length done_ close exn =
+  let write buffer offset length done_ close =
     match internal.state with
     | `Idle ->
       internal.state <- `Writer_waiting;
@@ -263,8 +240,7 @@ let pipe () =
       internal.write_offset <- offset;
       internal.write_length <- length;
       internal.write_done_callback <- done_;
-      internal.write_close_callback <- close;
-      internal.write_exn_callback <- exn
+      internal.write_close_callback <- close
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_data_callback = internal.read_data_callback in
@@ -295,14 +271,13 @@ let pipe () =
       ()
   in
 
-  let flush done_ close exn =
+  let flush done_ close =
     match internal.state with
     | `Idle ->
       internal.state <- `Writer_waiting;
       internal.write_kind <- `Flush;
       internal.write_done_callback <- done_;
-      internal.write_close_callback <- close;
-      internal.write_exn_callback <- exn
+      internal.write_close_callback <- close
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_flush_callback = internal.read_flush_callback in
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 55c810a5..83430389 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -17,7 +17,6 @@ type read =
   data:(buffer -> int -> int -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
-  exn:(exn -> unit) ->
     unit
 
 val read_only : read:read -> close:(unit -> unit) -> stream
@@ -33,7 +32,5 @@ val read_until_close : stream -> string promise
 
 (* TODO Clarify these signatures. *)
 val write :
-  buffer -> int -> int ->
-  (unit -> unit) -> (unit -> unit) -> (exn -> unit) -> stream ->
-    unit
-val flush : (unit -> unit) -> (unit -> unit) -> (exn -> unit) -> stream -> unit
+  buffer -> int -> int -> (unit -> unit) -> (unit -> unit) -> stream -> unit
+val flush : (unit -> unit) -> (unit -> unit) -> stream -> unit
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 6de69a55..fddacae1 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -22,9 +22,6 @@ let read_and_dump stream =
     ~flush:(fun () ->
       print_endline "flush")
 
-    ~exn:(fun _ ->
-      print_endline "exn")
-
 
 
 (* Read-only streams. *)
@@ -123,12 +120,12 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   (* TODO Check the callbacks are called. *)
-  Stream.flush ignore ignore ignore stream;
-  Stream.flush ignore ignore ignore stream;
+  Stream.flush ignore ignore stream;
+  Stream.flush ignore ignore stream;
   print_endline "checkpoint 2";
   read_and_dump stream;
-  Stream.flush ignore ignore ignore stream;
-  try Stream.flush ignore ignore ignore stream
+  Stream.flush ignore ignore stream;
+  try Stream.flush ignore ignore stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
@@ -149,12 +146,12 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   (* TODO Check the callbacks are called. *)
-  Stream.write buffer 0 3 ignore ignore ignore stream;
-  Stream.write buffer 1 1 ignore ignore ignore stream;
+  Stream.write buffer 0 3 ignore ignore stream;
+  Stream.write buffer 1 1 ignore ignore stream;
   print_endline "checkpoint 2";
   read_and_dump stream;
-  Stream.write buffer 0 3 ignore ignore ignore stream;
-  try Stream.write buffer 0 3 ignore ignore ignore stream;
+  Stream.write buffer 0 3 ignore ignore stream;
+  try Stream.write buffer 0 3 ignore ignore stream;
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1

From abeba7b4b835d2babf6a93387497dc1781197fa9 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 25 Nov 2021 19:34:20 +0300
Subject: [PATCH 025/312] Streams: clarify writer callbacks

---
 src/pure/inmost.ml                | 18 +++----
 src/pure/stream.ml                | 55 ++++++++++---------
 src/pure/stream.mli               | 11 ++--
 test/expect/pure/stream/stream.ml | 87 +++++++++++++++++--------------
 4 files changed, 91 insertions(+), 80 deletions(-)

diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 4a97c2ea..1666b42e 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -325,10 +325,10 @@ let write message chunk =
   let buffer = Bigstringaf.of_string ~off:0 ~len:length chunk in
   (* TODO Better handling of close? But it can't even occur with http/af. *)
   Stream.write
+    message.body
     buffer 0 length
-    (Lwt.wakeup_later resolver)
-    (fun () -> Lwt.wakeup_later_exn resolver End_of_file)
-    message.body;
+    ~ok:(Lwt.wakeup_later resolver)
+    ~close:(fun () -> Lwt.wakeup_later_exn resolver End_of_file);
   promise
 
 let write_buffer ?(offset = 0) ?length message chunk =
@@ -340,10 +340,10 @@ let write_buffer ?(offset = 0) ?length message chunk =
   in
   (* TODO Proper handling of close. *)
   Stream.write
+    message.body
     chunk offset length
-    (Lwt.wakeup_later resolver)
-    (Lwt.wakeup_later resolver)
-    message.body;
+    ~ok:(Lwt.wakeup_later resolver)
+    ~close:(Lwt.wakeup_later resolver);
   promise
 
 (* TODO How are remote closes actually handled? There is no way for http/af to
@@ -351,9 +351,9 @@ let write_buffer ?(offset = 0) ?length message chunk =
 let flush message =
   let promise, resolver = Lwt.wait () in
   Stream.flush
-    (Lwt.wakeup_later resolver)
-    (fun () -> Lwt.wakeup_later_exn resolver End_of_file)
-    message.body;
+    message.body
+    ~ok:(Lwt.wakeup_later resolver)
+    ~close:(fun () -> Lwt.wakeup_later_exn resolver End_of_file);
   promise
 
 let close_stream message =
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index fd0a7836..8329e582 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -18,18 +18,18 @@ type read =
     unit
 
 type stream = {
-  read :
-    data:(buffer -> int -> int -> unit) ->
+  read : read;
+
+  write :
+    buffer -> int -> int ->
+    ok:(unit -> unit) ->
     close:(unit -> unit) ->
-    flush:(unit -> unit) ->
       unit;
 
-  (* TODO Needs continuation arguments. Writer feedback is ok, exception,
-     closed. Ok should probably carry an int. *)
-  (* TODO Continuation labels? *)
-  (* TODO Really review these continuations. *)
-  write : buffer -> int -> int -> (unit -> unit) -> (unit -> unit) -> unit;
-  flush : (unit -> unit) -> (unit -> unit) -> unit;
+  flush :
+    ok:(unit -> unit) ->
+    close:(unit -> unit) ->
+      unit;
 
   close : unit -> unit;
 }
@@ -38,8 +38,8 @@ type stream = {
 let read_only ~read ~close =
   {
     read;
-    write = (fun _buffer _offset _length _done _close -> ());
-    flush = (fun _done _close -> ());
+    write = (fun _buffer _offset _length ~ok:_ ~close:_ -> ());
+    flush = (fun ~ok:_ ~close:_ -> ());
     close;
   }
 
@@ -140,11 +140,11 @@ let read_until_close stream =
 let close stream =
   stream.close ()
 
-let write buffer offset length done_ close stream =
-  stream.write buffer offset length done_ close
+let write stream buffer offset length ~ok ~close =
+  stream.write buffer offset length ~ok ~close
 
-let flush done_ close stream =
-  stream.flush done_ close
+let flush stream ~ok ~close =
+  stream.flush ~ok ~close
 
 type pipe = {
   mutable state : [
@@ -165,7 +165,7 @@ type pipe = {
   mutable write_buffer : buffer;
   mutable write_offset : int;
   mutable write_length : int;
-  mutable write_done_callback : unit -> unit;
+  mutable write_ok_callback : unit -> unit;
   mutable write_close_callback : unit -> unit;
 }
 
@@ -182,7 +182,7 @@ let clean_up_reader_fields pipe =
 
 let clean_up_writer_fields pipe =
   pipe.write_buffer <- dummy_buffer;
-  pipe.write_done_callback <- ignore;
+  pipe.write_ok_callback <- ignore;
   pipe.write_close_callback <- ignore
 
 let pipe () =
@@ -197,7 +197,7 @@ let pipe () =
     write_buffer = dummy_buffer;
     write_offset = 0;
     write_length = 0;
-    write_done_callback = ignore;
+    write_ok_callback = ignore;
     write_close_callback = ignore;
   } in
 
@@ -212,7 +212,7 @@ let pipe () =
       raise (Failure "Stream read: the previous read has not completed")
     | `Writer_waiting ->
       internal.state <- `Idle;
-      let write_done_callback = internal.write_done_callback in
+      let write_ok_callback = internal.write_ok_callback in
       begin match internal.write_kind with
       | `Data ->
         let buffer = internal.write_buffer
@@ -220,18 +220,17 @@ let pipe () =
         and length = internal.write_length in
         clean_up_writer_fields internal;
         data buffer offset length;
-        write_done_callback ()
+        write_ok_callback ()
       | `Flush ->
         clean_up_writer_fields internal;
         flush ();
-        write_done_callback ()
+        write_ok_callback ()
       end
     | `Closed ->
       close ()
   in
 
-  (* TODO Callbacks could definitely use labels, based on usage. *)
-  let write buffer offset length done_ close =
+  let write buffer offset length ~ok ~close =
     match internal.state with
     | `Idle ->
       internal.state <- `Writer_waiting;
@@ -239,14 +238,14 @@ let pipe () =
       internal.write_buffer <- buffer;
       internal.write_offset <- offset;
       internal.write_length <- length;
-      internal.write_done_callback <- done_;
+      internal.write_ok_callback <- ok;
       internal.write_close_callback <- close
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_data_callback = internal.read_data_callback in
       clean_up_reader_fields internal;
       read_data_callback buffer offset length;
-      done_ ()
+      ok ()
     | `Writer_waiting ->
       raise (Failure "Stream write: the previous write has not completed")
     | `Closed ->
@@ -271,19 +270,19 @@ let pipe () =
       ()
   in
 
-  let flush done_ close =
+  let flush ~ok ~close =
     match internal.state with
     | `Idle ->
       internal.state <- `Writer_waiting;
       internal.write_kind <- `Flush;
-      internal.write_done_callback <- done_;
+      internal.write_ok_callback <- ok;
       internal.write_close_callback <- close
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_flush_callback = internal.read_flush_callback in
       clean_up_reader_fields internal;
       read_flush_callback ();
-      done_ ()
+      ok ()
     | `Writer_waiting ->
       raise (Failure "Stream flush: the previous write has not completed")
     | `Closed ->
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 83430389..cc3491d5 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -30,7 +30,12 @@ val read : stream -> read
 val read_convenience : stream -> string option promise
 val read_until_close : stream -> string promise
 
-(* TODO Clarify these signatures. *)
 val write :
-  buffer -> int -> int -> (unit -> unit) -> (unit -> unit) -> stream -> unit
-val flush : (unit -> unit) -> (unit -> unit) -> stream -> unit
+  stream ->
+  buffer -> int -> int ->
+  ok:(unit -> unit) ->
+  close:(unit -> unit) ->
+    unit
+
+val flush :
+  stream -> ok:(unit -> unit) -> close:(unit -> unit) -> unit
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index fddacae1..03a7995b 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -12,15 +12,27 @@ module Stream = Dream__pure.Stream
 let read_and_dump stream =
   Stream.read stream
     ~data:(fun buffer offset length ->
-      print_string "data: ";
+      print_string "read: data: ";
       Bigstringaf.substring buffer ~off:offset ~len:length
       |> print_endline)
+    ~close:(fun () ->
+      print_endline "read: close")
+    ~flush:(fun () ->
+      print_endline "read: flush")
 
+let flush_and_dump stream =
+  Stream.flush stream
+    ~ok:(fun () ->
+      print_endline "flush: ok")
     ~close:(fun () ->
-      print_endline "close")
+      print_endline "flush: close")
 
-    ~flush:(fun () ->
-      print_endline "flush")
+let write_and_dump stream buffer offset length =
+  Stream.write stream buffer offset length
+    ~ok:(fun () ->
+      print_endline "write: ok")
+    ~close:(fun () ->
+      print_endline "write: close")
 
 
 
@@ -33,15 +45,15 @@ let%expect_test _ =
   Stream.close stream;
   read_and_dump stream;
   [%expect {|
-    close
-    close
-    close |}]
+    read: close
+    read: close
+    read: close |}]
 
 let%expect_test _ =
   let stream = Stream.empty in
   Stream.close stream;
   read_and_dump stream;
-  [%expect {| close |}]
+  [%expect {| read: close |}]
 
 let%expect_test _ =
   let stream = Stream.string "foo" in
@@ -51,24 +63,24 @@ let%expect_test _ =
   Stream.close stream;
   read_and_dump stream;
   [%expect {|
-    data: foo
-    close
-    close
-    close |}]
+    read: data: foo
+    read: close
+    read: close
+    read: close |}]
 
 let%expect_test _ =
   let stream = Stream.string "" in
   read_and_dump stream;
   read_and_dump stream;
   [%expect {|
-    close
-    close |}]
+    read: close
+    read: close |}]
 
 let%expect_test _ =
   let stream = Stream.string "foo" in
   Stream.close stream;
   read_and_dump stream;
-  [%expect {| close |}]
+  [%expect {| read: close |}]
 
 
 
@@ -89,7 +101,6 @@ let%expect_test _ =
   let stream = Stream.pipe () in
   read_and_dump stream;
   print_endline "checkpoint 1";
-  (* TODO Check that the callback is called. *)
   Stream.close stream;
   print_endline "checkpoint 2";
   read_and_dump stream;
@@ -97,9 +108,9 @@ let%expect_test _ =
   Stream.close stream;
   [%expect {|
     checkpoint 1
-    close
+    read: close
     checkpoint 2
-    close
+    read: close
     checkpoint 3 |}]
 
 let%expect_test _ =
@@ -108,8 +119,8 @@ let%expect_test _ =
   read_and_dump stream;
   read_and_dump stream;
   [%expect {|
-    close
-    close |}]
+    read: close
+    read: close |}]
 
 
 
@@ -119,19 +130,20 @@ let%expect_test _ =
   let stream = Stream.pipe () in
   read_and_dump stream;
   print_endline "checkpoint 1";
-  (* TODO Check the callbacks are called. *)
-  Stream.flush ignore ignore stream;
-  Stream.flush ignore ignore stream;
+  flush_and_dump stream;
+  flush_and_dump stream;
   print_endline "checkpoint 2";
   read_and_dump stream;
-  Stream.flush ignore ignore stream;
-  try Stream.flush ignore ignore stream
+  flush_and_dump stream;
+  try flush_and_dump stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
-    flush
+    read: flush
+    flush: ok
     checkpoint 2
-    flush
+    read: flush
+    flush: ok
     (Failure "Stream flush: the previous write has not completed") |}]
 
 
@@ -145,19 +157,20 @@ let%expect_test _ =
   let stream = Stream.pipe () in
   read_and_dump stream;
   print_endline "checkpoint 1";
-  (* TODO Check the callbacks are called. *)
-  Stream.write buffer 0 3 ignore ignore stream;
-  Stream.write buffer 1 1 ignore ignore stream;
+  write_and_dump stream buffer 0 3;
+  write_and_dump stream buffer 1 1;
   print_endline "checkpoint 2";
   read_and_dump stream;
-  Stream.write buffer 0 3 ignore ignore stream;
-  try Stream.write buffer 0 3 ignore ignore stream;
+  write_and_dump stream buffer 0 3;
+  try write_and_dump stream buffer 0 3
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
-    data: foo
+    read: data: foo
+    write: ok
     checkpoint 2
-    data: o
+    read: data: o
+    write: ok
     (Failure "Stream write: the previous write has not completed") |}]
 
 
@@ -165,12 +178,6 @@ let%expect_test _ =
 (* TODO: Test:
 
 - Writing to a read-only stream. Flushing, etc.
-- Early close of read-only streams or any other streams by the reader.
-- The generic read_only needs to take a close callback in addition to the
-  reader.
-- Stream.string needs to be able to abort the string by providing an appropriate
-  such callback.
-- Have the string stream release the string eagerly after it is read.
 - Interactions between writers (including flush) and close. This will benefit
   from clarifying the writers' callbacks.
 - The higher-level reading helpers.

From bde5fc82850bf6d1ca22bb91b59ca53cb72b4e01 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 25 Nov 2021 20:16:59 +0300
Subject: [PATCH 026/312] Fail on writes to read-only streams

---
 src/pure/stream.ml                | 15 +++++++++------
 test/expect/pure/stream/stream.ml | 17 +++++++++++++----
 2 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 8329e582..576d8e2e 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -34,12 +34,15 @@ type stream = {
   close : unit -> unit;
 }
 
-(* TODO Raise some exception when writes are attempted. *)
 let read_only ~read ~close =
   {
     read;
-    write = (fun _buffer _offset _length ~ok:_ ~close:_ -> ());
-    flush = (fun ~ok:_ ~close:_ -> ());
+    write =
+      (fun _buffer _offset _length ~ok:_ ~close:_ ->
+        raise (Failure "write to a read-only stream"));
+    flush =
+      (fun ~ok:_ ~close:_ ->
+        raise (Failure "flush of a read-only stream"));
     close;
   }
 
@@ -209,7 +212,7 @@ let pipe () =
       internal.read_close_callback <- close;
       internal.read_flush_callback <- flush
     | `Reader_waiting ->
-      raise (Failure "Stream read: the previous read has not completed")
+      raise (Failure "stream read: the previous read has not completed")
     | `Writer_waiting ->
       internal.state <- `Idle;
       let write_ok_callback = internal.write_ok_callback in
@@ -247,7 +250,7 @@ let pipe () =
       read_data_callback buffer offset length;
       ok ()
     | `Writer_waiting ->
-      raise (Failure "Stream write: the previous write has not completed")
+      raise (Failure "stream write: the previous write has not completed")
     | `Closed ->
       close ()
   in
@@ -284,7 +287,7 @@ let pipe () =
       read_flush_callback ();
       ok ()
     | `Writer_waiting ->
-      raise (Failure "Stream flush: the previous write has not completed")
+      raise (Failure "stream flush: the previous write has not completed")
     | `Closed ->
       close ()
   in
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 03a7995b..ea89335f 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -82,6 +82,16 @@ let%expect_test _ =
   read_and_dump stream;
   [%expect {| read: close |}]
 
+let%expect_test _ =
+  let stream = Stream.empty in
+  (try write_and_dump stream Bigstringaf.empty 0 0
+  with Failure _ as exn -> print_endline (Printexc.to_string exn));
+  (try flush_and_dump stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn));
+  [%expect {|
+    (Failure "write to a read-only stream")
+    (Failure "flush of a read-only stream") |}]
+
 
 
 (* Pipe: double read. *)
@@ -91,7 +101,7 @@ let%expect_test _ =
   read_and_dump stream;
   try read_and_dump stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
-  [%expect {| (Failure "Stream read: the previous read has not completed") |}]
+  [%expect {| (Failure "stream read: the previous read has not completed") |}]
 
 
 
@@ -144,7 +154,7 @@ let%expect_test _ =
     checkpoint 2
     read: flush
     flush: ok
-    (Failure "Stream flush: the previous write has not completed") |}]
+    (Failure "stream flush: the previous write has not completed") |}]
 
 
 
@@ -171,13 +181,12 @@ let%expect_test _ =
     checkpoint 2
     read: data: o
     write: ok
-    (Failure "Stream write: the previous write has not completed") |}]
+    (Failure "stream write: the previous write has not completed") |}]
 
 
 
 (* TODO: Test:
 
-- Writing to a read-only stream. Flushing, etc.
 - Interactions between writers (including flush) and close. This will benefit
   from clarifying the writers' callbacks.
 - The higher-level reading helpers.

From 9a426fa5e5a8063552096552786533cfc8d34b2d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 25 Nov 2021 20:25:45 +0300
Subject: [PATCH 027/312] Test interactions between stream writers and close

---
 src/pure/stream.ml                |  2 +-
 test/expect/pure/stream/stream.ml | 27 ++++++++++++++++++++++-----
 2 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 576d8e2e..6b4ae562 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -176,7 +176,7 @@ let dummy_buffer =
   Bigstringaf.create 0
 
 let dummy_read_data_callback _buffer _offset _length =
-  ()
+  () [@coverage off]
 
 let clean_up_reader_fields pipe =
   pipe.read_data_callback <- dummy_read_data_callback;
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index ea89335f..5af47c61 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -185,9 +185,26 @@ let%expect_test _ =
 
 
 
-(* TODO: Test:
+(* Pipe: interactions between flush and close. *)
 
-- Interactions between writers (including flush) and close. This will benefit
-  from clarifying the writers' callbacks.
-- The higher-level reading helpers.
-*)
+let%expect_test _ =
+  let stream = Stream.pipe () in
+  flush_and_dump stream;
+  Stream.close stream;
+  flush_and_dump stream;
+  [%expect {|
+    flush: close
+    flush: close |}]
+
+
+
+(* Pipe: interactions between write and close. *)
+
+let%expect_test _ =
+  let stream = Stream.pipe () in
+  write_and_dump stream buffer 0 3;
+  Stream.close stream;
+  write_and_dump stream buffer 0 3;
+  [%expect {|
+    write: close
+    write: close |}]

From 586f93bfc6e837a9d86747f506e2cd09a6bebc33 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 25 Nov 2021 20:52:52 +0300
Subject: [PATCH 028/312] Stream: initial internal docs

---
 src/pure/stream.mli | 65 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index cc3491d5..e521845a 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -7,28 +7,87 @@
 
 type buffer =
   (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+(** Type abbreviation for byte buffers in the C heap. *)
 
 type 'a promise =
   'a Lwt.t
+(** Type abbreviation for promises. *)
 
 type stream
+(** This module's principal type, the {e stream}.
+
+    Streams are basically just tuples of a reading function and several writing
+    functions. In C++ terms, they are vtables. Different stream objects can have
+    completely different implementations of these functions. Concrete stream
+    constructors, such as {!Stream.empty} and {!Stream.pipe} implement those
+    functions in interesting ways.
+
+    There are three main kinds of streams used in Dream:
+
+    - {e Read-only streams} have the reading function implemented, and the
+      writers raise exceptions when called. These are typically created by the
+      HTTP layer as facades for the underlying HTTP server's request body
+      reader.
+    - {e Pipes} have their reading function connected to their writing
+      functions. Pipes are essentially a synchronization primitive that allows
+      one reader to be satisfied by one writer. These are created for responses,
+      because responses are created deep in the user's Web application, and the
+      HTTP layer reads them later to process the application's writes. Pipes can
+      also be created by middlewares that transform messages bodies, such as for
+      compression.
+    - {e Duplex streams} have the reading function and writing functions
+      implemented, but connected to different streams. This is used primarily
+      for WebSockets, where writing to the stream causes data to be sent to the
+      client, and reading from the stream awaits data to be received from the
+      client.
+
+    Streams are asynchronous. Readers and writers expect callbacks, and call
+    them when underlying operations complete.
+
+    The entire interface is pull-based for flow control. *)
 
 type read =
   data:(buffer -> int -> int -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
     unit
+(** A reading function. Awaits the next event on the stream. For each call of a
+    reading function, one of the callbacks will eventually be called, according
+    to which event occurs next on the stream. *)
 
 val read_only : read:read -> close:(unit -> unit) -> stream
+(** Creates a read-only stream from the given reader. [~close] is called in
+    response to {!Stream.close}. It doesn't need to call {!Stream.close} again
+    on the stream. It should be used to free any underlying resources. *)
+
 val empty : stream
+(** A read-only stream whose reading function always calls its [~close]
+    callback. *)
+
 val string : string -> stream
+(** A read-only stream which calls its [~data] callback once with the contents
+    of the given string, and then always calls [~close]. *)
+
 val pipe : unit -> stream
+(** A stream which matches each call of the reading function to one call of its
+    writing functions. For example, calling {!Stream.flush} on a pipe will cause
+    the reader to call its [~flush] callback. *)
 
 val close : stream -> unit
+(** Closes the given stream. Causes a pending reader or writer to call its
+    [~close] callback. *)
 
 val read : stream -> read
+(** Awaits the next stream event. See {!Stream.type-read}. *)
+
 val read_convenience : stream -> string option promise
+(** A wrapper around {!Stream.read} that converts [~data] with content [s] into
+    [Some s], and [~close] into [None], and uses them to resolve a promise.
+    [~flush] is ignored. *)
+
 val read_until_close : stream -> string promise
+(** Reads a stream completely until [~close], and accumulates the data into a
+    string. *)
 
 val write :
   stream ->
@@ -36,6 +95,12 @@ val write :
   ok:(unit -> unit) ->
   close:(unit -> unit) ->
     unit
+(** A writing function that sends a data buffer on the given stream. No more
+    writing functions should be called on the stream until this function calls
+    [~ok]. *)
 
 val flush :
   stream -> ok:(unit -> unit) -> close:(unit -> unit) -> unit
+(** A writing function that asks for the given stream to be flushed. The meaning
+    of flushing depends on the implementation of the stream. No more writing
+    functions should be called on the stream until this function calls [~ok]. *)

From 40bc9946805f4b0b8b422cc69ac89968195cecca Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 26 Nov 2021 00:09:08 +0300
Subject: [PATCH 029/312] Streams: support FIN, ping, and pong

---
 src/dream.mli                     |   4 +-
 src/http/adapt.ml                 |  23 +++--
 src/http/http.ml                  |   8 +-
 src/pure/inmost.ml                |   8 +-
 src/pure/stream.ml                | 163 ++++++++++++++++++++++--------
 src/pure/stream.mli               |  20 +++-
 test/expect/pure/stream/stream.ml | 131 ++++++++++++++++++++----
 7 files changed, 281 insertions(+), 76 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index a8d3ba38..cee3272e 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -732,9 +732,11 @@ val body_stream : 'a message -> stream
 (* TODO Argument order? *)
 val next :
   stream ->
-  data:(buffer -> int -> int -> unit) ->
+  data:(buffer -> int -> int -> bool -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
+  ping:(unit -> unit) ->
+  pong:(unit -> unit) ->
     unit
 (** Waits for the next stream event, and calls:
 
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index c98ffbaa..f1927fe4 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -29,19 +29,28 @@ let forward_body_general
 
   let rec send () =
     Dream.body_stream response
-    |> fun stream -> Stream.read
-      stream
-      ~data
-      ~close
-      ~flush
-
-  and data chunk off len =
+    |> fun stream ->
+      Stream.read
+        stream
+        ~data
+        ~close
+        ~flush
+        ~ping
+        ~pong
+
+  and data chunk off len _fin =
     write_buffer ~off ~len chunk;
     send ()
 
   and flush () =
     http_flush send
 
+  and ping () =
+    send ()
+
+  and pong () =
+    send ()
+
   in
 
   send ()
diff --git a/src/http/http.ml b/src/http/http.ml
index 90ac64c1..c40028b8 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -163,11 +163,11 @@ let wrap_handler
     (* TODO Should the stream be auto-closed? It doesn't even have a closed
        state. The whole thing is just a wrapper for whatever the http/af
        behavior is. *)
-    let read ~data ~close ~flush:_ =
+    let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
       Httpaf.Body.Reader.schedule_read
         body
         ~on_eof:close
-        ~on_read:(fun buffer ~off ~len -> data buffer off len)
+        ~on_read:(fun buffer ~off ~len -> data buffer off len false)
     in
     let close () =
       Httpaf.Body.Reader.close body in
@@ -306,11 +306,11 @@ let wrap_handler_h2
 
     let body =
       H2.Reqd.request_body conn in
-    let read ~data ~close ~flush:_ =
+    let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
       H2.Body.schedule_read
         body
         ~on_eof:close
-        ~on_read:(fun buffer ~off ~len -> data buffer off len)
+        ~on_read:(fun buffer ~off ~len -> data buffer off len false)
     in
     let close () =
       H2.Body.close_reader body in
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 1666b42e..f8173af8 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -319,6 +319,9 @@ let with_body body message =
 let with_stream message =
   update {message with body = Stream.pipe ()}
 
+(* TODO Need to expose FIN. However, it can't have any effect even on
+   WebSockets, because websocket/af does not offer the ability to pass FIN. It
+   is hardcoded to true. *)
 let write message chunk =
   let promise, resolver = Lwt.wait () in
   let length = String.length chunk in
@@ -326,7 +329,7 @@ let write message chunk =
   (* TODO Better handling of close? But it can't even occur with http/af. *)
   Stream.write
     message.body
-    buffer 0 length
+    buffer 0 length false
     ~ok:(Lwt.wakeup_later resolver)
     ~close:(fun () -> Lwt.wakeup_later_exn resolver End_of_file);
   promise
@@ -339,9 +342,10 @@ let write_buffer ?(offset = 0) ?length message chunk =
     | None -> Bigstringaf.length chunk - offset
   in
   (* TODO Proper handling of close. *)
+  (* TODO As above, properly expose FIN. *)
   Stream.write
     message.body
-    chunk offset length
+    chunk offset length false
     ~ok:(Lwt.wakeup_later resolver)
     ~close:(Lwt.wakeup_later resolver);
   promise
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 6b4ae562..ce34d32b 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -12,16 +12,18 @@ type 'a promise =
   'a Lwt.t
 
 type read =
-  data:(buffer -> int -> int -> unit) ->
+  data:(buffer -> int -> int -> bool -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
+  ping:(unit -> unit) ->
+  pong:(unit -> unit) ->
     unit
 
 type stream = {
   read : read;
 
   write :
-    buffer -> int -> int ->
+    buffer -> int -> int -> bool ->
     ok:(unit -> unit) ->
     close:(unit -> unit) ->
       unit;
@@ -31,6 +33,16 @@ type stream = {
     close:(unit -> unit) ->
       unit;
 
+  ping :
+    ok:(unit -> unit) ->
+    close:(unit -> unit) ->
+      unit;
+
+  pong :
+    ok:(unit -> unit) ->
+    close:(unit -> unit) ->
+      unit;
+
   close : unit -> unit;
 }
 
@@ -38,17 +50,23 @@ let read_only ~read ~close =
   {
     read;
     write =
-      (fun _buffer _offset _length ~ok:_ ~close:_ ->
+      (fun _buffer _offset _length _fin ~ok:_ ~close:_ ->
         raise (Failure "write to a read-only stream"));
     flush =
       (fun ~ok:_ ~close:_ ->
         raise (Failure "flush of a read-only stream"));
+    ping =
+      (fun ~ok:_ ~close:_ ->
+        raise (Failure "ping on a read-only stream"));
+    pong =
+      (fun ~ok:_ ~close:_ ->
+        raise (Failure "pong on a read-only stream"));
     close;
   }
 
 let empty =
   read_only
-    ~read:(fun ~data:_ ~close ~flush:_ -> close ())
+    ~read:(fun ~data:_ ~close ~flush:_ ~ping:_ ~pong:_ -> close ())
     ~close:ignore
 
 (* TODO This shows the awkwardness in string-to-string body reading. *)
@@ -60,12 +78,14 @@ let string the_string =
        the stream is closed, making the memory available to the GC. *)
     let string_ref = ref (Some the_string) in
 
-    let read ~data ~close ~flush:_ =
+    let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
       match !string_ref with
       | Some stored_string ->
         string_ref := None;
         let length = String.length stored_string in
-        data (Bigstringaf.of_string ~off:0 ~len:length stored_string) 0 length
+        data
+          (Bigstringaf.of_string ~off:0 ~len:length stored_string)
+          0 length true
       | None ->
         close ()
     in
@@ -80,14 +100,12 @@ let string the_string =
 let read stream ~data ~close ~flush =
   stream.read ~data ~close ~flush
 
-(* TODO Can probably save promise allocation if create a separate looping
-   function. *)
-let rec read_convenience stream =
+let read_convenience stream =
   let promise, resolver = Lwt.wait () in
 
-  begin
+  let rec loop () =
     stream.read
-      ~data:(fun buffer offset length ->
+      ~data:(fun buffer offset length _fin ->
         Bigstringaf.sub buffer ~off:offset ~len:length
         |> Bigstringaf.to_string
         |> Option.some
@@ -96,13 +114,17 @@ let rec read_convenience stream =
       ~close:(fun () ->
         Lwt.wakeup_later resolver None)
 
-      ~flush:(fun () ->
-        let next_promise = read_convenience stream in
-        Lwt.on_any
-          next_promise
-          (Lwt.wakeup_later resolver)
-          (Lwt.wakeup_later_exn resolver))
-  end;
+      ~flush:loop
+
+      (* TODO This requires reordering the implementations and taking a harder
+         look at all these functions.
+         Upon a ping event, assume that we are on a read-write, duplex WebSocket
+         stream, and send a pong. *)
+      ~ping:loop
+
+      ~pong:loop
+  in
+  loop ();
 
   promise
 
@@ -113,7 +135,7 @@ let read_until_close stream =
 
   let rec loop () =
     stream.read
-      ~data:(fun chunk offset chunk_length ->
+      ~data:(fun chunk offset chunk_length _fin ->
         let new_length = !length + chunk_length in
 
         if new_length > Bigstringaf.length !buffer then begin
@@ -135,6 +157,12 @@ let read_until_close stream =
         |> Lwt.wakeup_later resolver)
 
       ~flush:loop
+
+      (* TODO As with the previous function, should respond to a ping with a
+         pong. *)
+      ~ping:loop
+
+      ~pong:loop
   in
   loop ();
 
@@ -143,12 +171,18 @@ let read_until_close stream =
 let close stream =
   stream.close ()
 
-let write stream buffer offset length ~ok ~close =
-  stream.write buffer offset length ~ok ~close
+let write stream buffer offset length fin ~ok ~close =
+  stream.write buffer offset length fin ~ok ~close
 
 let flush stream ~ok ~close =
   stream.flush ~ok ~close
 
+let ping stream ~ok ~close =
+  stream.ping ~ok ~close
+
+let pong stream ~ok ~close =
+  stream.pong ~ok ~close
+
 type pipe = {
   mutable state : [
     | `Idle
@@ -157,17 +191,22 @@ type pipe = {
     | `Closed
   ];
 
-  mutable read_data_callback : buffer -> int -> int -> unit;
+  mutable read_data_callback : buffer -> int -> int -> bool -> unit;
   mutable read_close_callback : unit -> unit;
   mutable read_flush_callback : unit -> unit;
+  mutable read_ping_callback : unit -> unit;
+  mutable read_pong_callback : unit -> unit;
 
   mutable write_kind : [
     | `Data
     | `Flush
+    | `Ping
+    | `Pong
   ];
   mutable write_buffer : buffer;
   mutable write_offset : int;
   mutable write_length : int;
+  mutable write_fin : bool;
   mutable write_ok_callback : unit -> unit;
   mutable write_close_callback : unit -> unit;
 }
@@ -175,13 +214,15 @@ type pipe = {
 let dummy_buffer =
   Bigstringaf.create 0
 
-let dummy_read_data_callback _buffer _offset _length =
+let dummy_read_data_callback _buffer _offset _length _fin =
   () [@coverage off]
 
 let clean_up_reader_fields pipe =
   pipe.read_data_callback <- dummy_read_data_callback;
   pipe.read_close_callback <- ignore;
-  pipe.read_flush_callback <- ignore
+  pipe.read_flush_callback <- ignore;
+  pipe.read_ping_callback <- ignore;
+  pipe.read_pong_callback <- ignore
 
 let clean_up_writer_fields pipe =
   pipe.write_buffer <- dummy_buffer;
@@ -195,45 +236,48 @@ let pipe () =
     read_data_callback = dummy_read_data_callback;
     read_close_callback = ignore;
     read_flush_callback = ignore;
+    read_ping_callback = ignore;
+    read_pong_callback = ignore;
 
     write_kind = `Data;
     write_buffer = dummy_buffer;
     write_offset = 0;
     write_length = 0;
+    write_fin = false;
     write_ok_callback = ignore;
     write_close_callback = ignore;
   } in
 
-  let read ~data ~close ~flush =
+  let read ~data ~close ~flush ~ping ~pong =
     match internal.state with
     | `Idle ->
       internal.state <- `Reader_waiting;
       internal.read_data_callback <- data;
       internal.read_close_callback <- close;
-      internal.read_flush_callback <- flush
+      internal.read_flush_callback <- flush;
+      internal.read_ping_callback <- ping;
+      internal.read_pong_callback <- pong;
     | `Reader_waiting ->
       raise (Failure "stream read: the previous read has not completed")
     | `Writer_waiting ->
       internal.state <- `Idle;
       let write_ok_callback = internal.write_ok_callback in
+      let buffer = internal.write_buffer in
+      clean_up_writer_fields internal;
       begin match internal.write_kind with
       | `Data ->
-        let buffer = internal.write_buffer
-        and offset = internal.write_offset
-        and length = internal.write_length in
-        clean_up_writer_fields internal;
-        data buffer offset length;
-        write_ok_callback ()
-      | `Flush ->
-        clean_up_writer_fields internal;
-        flush ();
-        write_ok_callback ()
-      end
+        data
+          buffer internal.write_offset internal.write_length internal.write_fin
+      | `Flush -> flush ()
+      | `Ping -> ping ()
+      | `Pong -> pong ()
+      end;
+      write_ok_callback ()
     | `Closed ->
       close ()
   in
 
-  let write buffer offset length ~ok ~close =
+  let write buffer offset length fin ~ok ~close =
     match internal.state with
     | `Idle ->
       internal.state <- `Writer_waiting;
@@ -241,13 +285,14 @@ let pipe () =
       internal.write_buffer <- buffer;
       internal.write_offset <- offset;
       internal.write_length <- length;
+      internal.write_fin <- fin;
       internal.write_ok_callback <- ok;
       internal.write_close_callback <- close
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_data_callback = internal.read_data_callback in
       clean_up_reader_fields internal;
-      read_data_callback buffer offset length;
+      read_data_callback buffer offset length fin;
       ok ()
     | `Writer_waiting ->
       raise (Failure "stream write: the previous write has not completed")
@@ -292,4 +337,42 @@ let pipe () =
       close ()
   in
 
-  {read; write; flush; close}
+  let ping ~ok ~close =
+    match internal.state with
+    | `Idle ->
+      internal.state <- `Writer_waiting;
+      internal.write_kind <- `Ping;
+      internal.write_ok_callback <- ok;
+      internal.write_close_callback <- close
+    | `Reader_waiting ->
+      internal.state <- `Idle;
+      let read_ping_callback = internal.read_ping_callback in
+      clean_up_reader_fields internal;
+      read_ping_callback ();
+      ok ()
+    | `Writer_waiting ->
+      raise (Failure "stream ping: the previous write has not completed")
+    | `Closed ->
+      close ()
+  in
+
+  let pong ~ok ~close =
+    match internal.state with
+    | `Idle ->
+      internal.state <- `Writer_waiting;
+      internal.write_kind <- `Pong;
+      internal.write_ok_callback <- ok;
+      internal.write_close_callback <- close
+    | `Reader_waiting ->
+      internal.state <- `Idle;
+      let read_pong_callback = internal.read_pong_callback in
+      clean_up_reader_fields internal;
+      read_pong_callback ();
+      ok ()
+    | `Writer_waiting ->
+      raise (Failure "stream pong: the previous write has not completed")
+    | `Closed ->
+      close ()
+  in
+
+  {read; write; flush; close; ping; pong}
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index e521845a..cd1ce7ce 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -47,9 +47,11 @@ type stream
     The entire interface is pull-based for flow control. *)
 
 type read =
-  data:(buffer -> int -> int -> unit) ->
+  data:(buffer -> int -> int -> bool -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
+  ping:(unit -> unit) ->
+  pong:(unit -> unit) ->
     unit
 (** A reading function. Awaits the next event on the stream. For each call of a
     reading function, one of the callbacks will eventually be called, according
@@ -91,16 +93,24 @@ val read_until_close : stream -> string promise
 
 val write :
   stream ->
-  buffer -> int -> int ->
+  buffer -> int -> int -> bool ->
   ok:(unit -> unit) ->
   close:(unit -> unit) ->
     unit
 (** A writing function that sends a data buffer on the given stream. No more
     writing functions should be called on the stream until this function calls
-    [~ok]. *)
+    [~ok]. The [bool] argument is the [FIN] flag that indicates the end of a
+    WebSocket message. It is ignored by non-WebSocket streams. *)
 
-val flush :
-  stream -> ok:(unit -> unit) -> close:(unit -> unit) -> unit
+val flush : stream -> ok:(unit -> unit) -> close:(unit -> unit) -> unit
 (** A writing function that asks for the given stream to be flushed. The meaning
     of flushing depends on the implementation of the stream. No more writing
     functions should be called on the stream until this function calls [~ok]. *)
+
+val ping : stream -> ok:(unit -> unit) -> close:(unit -> unit) -> unit
+(** A writing function that sends a ping event on the given stream. This is only
+    meaningful for WebSockets. *)
+
+val pong : stream -> ok:(unit -> unit) -> close:(unit -> unit) -> unit
+(** A writing function that sends a pong event on the given stream. This is only
+    meaningful for WebSockets. *)
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 5af47c61..c64e47d5 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -11,14 +11,17 @@ module Stream = Dream__pure.Stream
 
 let read_and_dump stream =
   Stream.read stream
-    ~data:(fun buffer offset length ->
-      print_string "read: data: ";
-      Bigstringaf.substring buffer ~off:offset ~len:length
-      |> print_endline)
+    ~data:(fun buffer offset length fin ->
+      Printf.printf "read: data: FIN=%b %s\n"
+        fin (Bigstringaf.substring buffer ~off:offset ~len:length))
     ~close:(fun () ->
       print_endline "read: close")
     ~flush:(fun () ->
       print_endline "read: flush")
+    ~ping:(fun () ->
+      print_endline "read: ping")
+    ~pong:(fun () ->
+      print_endline "read: pong")
 
 let flush_and_dump stream =
   Stream.flush stream
@@ -27,13 +30,27 @@ let flush_and_dump stream =
     ~close:(fun () ->
       print_endline "flush: close")
 
-let write_and_dump stream buffer offset length =
-  Stream.write stream buffer offset length
+let write_and_dump stream buffer offset length fin =
+  Stream.write stream buffer offset length fin
     ~ok:(fun () ->
       print_endline "write: ok")
     ~close:(fun () ->
       print_endline "write: close")
 
+let ping_and_dump stream =
+  Stream.ping stream
+    ~ok:(fun () ->
+      print_endline "ping: ok")
+    ~close:(fun () ->
+      print_endline "ping: close")
+
+let pong_and_dump stream =
+  Stream.pong stream
+    ~ok:(fun () ->
+      print_endline "pong: ok")
+    ~close:(fun () ->
+      print_endline "pong: close")
+
 
 
 (* Read-only streams. *)
@@ -63,7 +80,7 @@ let%expect_test _ =
   Stream.close stream;
   read_and_dump stream;
   [%expect {|
-    read: data: foo
+    read: data: FIN=true foo
     read: close
     read: close
     read: close |}]
@@ -84,13 +101,19 @@ let%expect_test _ =
 
 let%expect_test _ =
   let stream = Stream.empty in
-  (try write_and_dump stream Bigstringaf.empty 0 0
+  (try write_and_dump stream Bigstringaf.empty 0 0 false
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
   (try flush_and_dump stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
+  (try ping_and_dump stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn));
+  (try pong_and_dump stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn));
   [%expect {|
     (Failure "write to a read-only stream")
-    (Failure "flush of a read-only stream") |}]
+    (Failure "flush of a read-only stream")
+    (Failure "ping on a read-only stream")
+    (Failure "pong on a read-only stream") |}]
 
 
 
@@ -167,24 +190,72 @@ let%expect_test _ =
   let stream = Stream.pipe () in
   read_and_dump stream;
   print_endline "checkpoint 1";
-  write_and_dump stream buffer 0 3;
-  write_and_dump stream buffer 1 1;
+  write_and_dump stream buffer 0 3 true;
+  write_and_dump stream buffer 1 1 false;
   print_endline "checkpoint 2";
   read_and_dump stream;
-  write_and_dump stream buffer 0 3;
-  try write_and_dump stream buffer 0 3
+  write_and_dump stream buffer 0 3 true;
+  try write_and_dump stream buffer 0 3 false
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
-    read: data: foo
+    read: data: FIN=true foo
     write: ok
     checkpoint 2
-    read: data: o
+    read: data: FIN=false o
     write: ok
     (Failure "stream write: the previous write has not completed") |}]
 
 
 
+(* Pipe: interactions between read and ping. *)
+
+let%expect_test _ =
+  let stream = Stream.pipe () in
+  read_and_dump stream;
+  print_endline "checkpoint 1";
+  ping_and_dump stream;
+  ping_and_dump stream;
+  print_endline "checkpoint 2";
+  read_and_dump stream;
+  ping_and_dump stream;
+  try ping_and_dump stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn);
+  [%expect {|
+    checkpoint 1
+    read: ping
+    ping: ok
+    checkpoint 2
+    read: ping
+    ping: ok
+    (Failure "stream ping: the previous write has not completed") |}]
+
+
+
+(* Pipe: interactions between read and pong. *)
+
+let%expect_test _ =
+  let stream = Stream.pipe () in
+  read_and_dump stream;
+  print_endline "checkpoint 1";
+  pong_and_dump stream;
+  pong_and_dump stream;
+  print_endline "checkpoint 2";
+  read_and_dump stream;
+  pong_and_dump stream;
+  try pong_and_dump stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn);
+  [%expect {|
+    checkpoint 1
+    read: pong
+    pong: ok
+    checkpoint 2
+    read: pong
+    pong: ok
+    (Failure "stream pong: the previous write has not completed") |}]
+
+
+
 (* Pipe: interactions between flush and close. *)
 
 let%expect_test _ =
@@ -202,9 +273,35 @@ let%expect_test _ =
 
 let%expect_test _ =
   let stream = Stream.pipe () in
-  write_and_dump stream buffer 0 3;
+  write_and_dump stream buffer 0 3 true;
   Stream.close stream;
-  write_and_dump stream buffer 0 3;
+  write_and_dump stream buffer 0 3 false;
   [%expect {|
     write: close
     write: close |}]
+
+
+
+(* Pipe: interactions between ping and close. *)
+
+let%expect_test _ =
+  let stream = Stream.pipe () in
+  ping_and_dump stream;
+  Stream.close stream;
+  ping_and_dump stream;
+  [%expect {|
+    ping: close
+    ping: close |}]
+
+
+
+(* Pipe: interactions between pong and close. *)
+
+let%expect_test _ =
+  let stream = Stream.pipe () in
+  pong_and_dump stream;
+  Stream.close stream;
+  pong_and_dump stream;
+  [%expect {|
+    pong: close
+    pong: close |}]

From 4813c0791492ce7221f22c506b9a1b75608ab3f9 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 13:58:39 +0300
Subject: [PATCH 030/312] Implement WebSockets as streams

---
 src/http/http.ml    | 55 ++++++++++++++++++++++++++++-----------------
 src/pure/inmost.ml  | 28 +++++++++++++----------
 src/pure/stream.ml  | 20 +++++++++++++++++
 src/pure/stream.mli | 15 +++++++++++++
 4 files changed, 85 insertions(+), 33 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index c40028b8..9bf1523a 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -44,31 +44,44 @@ let websocket_handler user's_websocket_handler socket =
      higher-level reader. *)
   let messages, push_message = Lwt_stream.create () in
 
-  let send kind message =
-    let kind = (kind :> [ `Text | `Binary | `Continuation ]) in
-    Websocketaf.Wsd.send_bytes
-      socket
-      ~kind
-      (Bytes.unsafe_of_string message)
-      ~off:0
-      ~len:(String.length message);
-    Lwt.return_unit
+  (* TODO Approximate pull behavior by delaying the payload reader, and
+     implement passing of ping and pong to the caller. *)
+  (* TODO Currently, there is a double conversion from bigstring to string and
+     then back (and then probably again), but this should go away once there is
+     a lower-level pull reader, and messages are assembled elsewhere in the
+     stack. *)
+  let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
+    Lwt.on_success (Lwt_stream.get messages) @@ function
+    | Some message ->
+      let length = String.length message in
+      data (Bigstringaf.of_string ~off:0 ~len:length message) 0 length true
+    | None ->
+      close ()
   in
 
-  let receive () =
-    Lwt_stream.get messages in
-
-  let close code =
-    let code = Option.map (fun code -> `Other code) code in
-    Websocketaf.Wsd.close ?code socket;
-    Lwt.return_unit
+  (* TODO Re-expose kind. *)
+  let write buffer offset length _fin ~ok ~close:_ =
+    Websocketaf.Wsd.schedule
+      socket ~kind:`Text buffer ~off:offset ~len:length;
+    ok ()
   in
 
-  let websocket = {
-    Dream.send;
-    receive;
-    close;
-  } in
+  (* TODO Implement (for the first time). *)
+  let flush ~ok ~close:_ =
+    ok () in
+
+  let ping ~ok ~close:_ =
+    ok () in
+
+  let pong ~ok ~close:_ =
+    ok () in
+
+  (* TODO Re-expose close code. *)
+  let close () =
+    Websocketaf.Wsd.close socket in
+
+  let websocket =
+    Stream.stream ~read ~write ~flush ~ping ~pong ~close in
 
   (* TODO Needs error handling like the top-level app has! *)
   Lwt.async (fun () ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index f8173af8..c5e97f68 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -37,11 +37,7 @@ struct
 end
 module Scope = Hmap.Make (Scope_variable_metadata)
 
-type websocket = {
-  send : [ `Text | `Binary ] -> string -> unit Lwt.t;
-  receive : unit -> string option Lwt.t;
-  close : int option -> unit Lwt.t;
-}
+type websocket = Stream.stream
 
 type request = incoming message
 and response = outgoing message
@@ -564,19 +560,27 @@ let websocket ?headers handler =
   in
   Lwt.return response
 
-let send ?kind websocket message =
-  let kind =
+let send ?kind:_ websocket message =
+  (* let kind =
     match kind with
     | None | Some `Text -> `Text
     | Some `Binary -> `Binary
-  in
-  websocket.send kind message
+  in *)
+  let promise, resolver = Lwt.wait () in
+  let length = String.length message in
+  Stream.write
+    websocket (Bigstringaf.of_string ~off:0 ~len:length message) 0 length true
+    ~ok:(Lwt.wakeup_later resolver)
+    ~close:(Lwt.wakeup_later resolver);
+  (* TODO The API will likely have to change to report closing. *)
+  promise
 
 let receive websocket =
-  websocket.receive ()
+  Stream.read_convenience websocket
 
-let close_websocket ?code websocket =
-  websocket.close code
+let close_websocket ?code:_ websocket =
+  Stream.close websocket;
+  Lwt.return_unit
 
 let no_middleware handler request =
   handler request
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index ce34d32b..61cb1ec8 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -376,3 +376,23 @@ let pipe () =
   in
 
   {read; write; flush; close; ping; pong}
+
+let duplex ~read ~write ~close =
+  {
+    read = read.read;
+    write = write.write;
+    flush = write.flush;
+    ping = write.ping;
+    pong = write.pong;
+    close;
+  }
+
+let stream ~read ~write ~flush ~ping ~pong ~close =
+  {
+    read;
+    write;
+    flush;
+    ping;
+    pong;
+    close;
+  }
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index cd1ce7ce..398a1263 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -75,6 +75,21 @@ val pipe : unit -> stream
     writing functions. For example, calling {!Stream.flush} on a pipe will cause
     the reader to call its [~flush] callback. *)
 
+val duplex : read:stream -> write:stream -> close:(unit -> unit) -> stream
+(** A stream whose reading functions behave like [~read], and whose writing
+    functions behave like [~write]. *)
+
+(* TODO Seriously fix this signature. *)
+val stream :
+  read:read ->
+  write:(buffer -> int -> int -> bool -> ok:(unit -> unit) -> close:(unit -> unit) -> unit) ->
+  flush:(ok:(unit -> unit) -> close:(unit -> unit) -> unit) ->
+  ping:(ok:(unit -> unit) -> close:(unit -> unit) -> unit) ->
+  pong:(ok:(unit -> unit) -> close:(unit -> unit) -> unit) ->
+  close:(unit -> unit) ->
+    stream
+(** A general stream. *)
+
 val close : stream -> unit
 (** Closes the given stream. Causes a pending reader or writer to call its
     [~close] callback. *)

From 706810a95d0ec27a91f6809040c40ada6e69a74c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 15:53:07 +0300
Subject: [PATCH 031/312] WebSocket: pull style; expose ping, pong, flush

---
 src/http/http.ml | 178 ++++++++++++++++++++++++++---------------------
 1 file changed, 100 insertions(+), 78 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index 9bf1523a..9cf24891 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -34,51 +34,117 @@ let sha1 s =
    implementation... *)
 let websocket_handler user's_websocket_handler socket =
 
-  (* Frames of the current partial message, in reverse order. *)
-  let message_frames = ref [] in
-
-  (* Queue of received messages. There doesn't appear to be a nice way to
-     achieve backpressure with the current API of websocketaf, so that will have
-     to be added later. The user-facing API of Dream does support backpressure.
-     It's just that this code here reads no matter whether there is a
-     higher-level reader. *)
-  let messages, push_message = Lwt_stream.create () in
-
-  (* TODO Approximate pull behavior by delaying the payload reader, and
-     implement passing of ping and pong to the caller. *)
-  (* TODO Currently, there is a double conversion from bigstring to string and
-     then back (and then probably again), but this should go away once there is
-     a lower-level pull reader, and messages are assembled elsewhere in the
-     stack. *)
-  let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
-    Lwt.on_success (Lwt_stream.get messages) @@ function
-    | Some message ->
-      let length = String.length message in
-      data (Bigstringaf.of_string ~off:0 ~len:length message) 0 length true
-    | None ->
+  (* Queue of received frames. There doesn't appear to be a nice way to achieve
+     backpressure with the current API of websocket/af, so that will have to be
+     added later. The user-facing API of Dream does support backpressure. *)
+  let frames, push_frame = Lwt_stream.create () in
+
+  (* Frame reader called by websocket/af on each frame received. There is no
+     good way to truly throttle this, hence this frame reader pushes frame
+     objects into the above frame queue for the reader to take from later. *)
+  let frame ~opcode ~is_fin:_ ~len:_ payload =
+    match opcode with
+    | `Connection_close ->
+      Websocketaf.Wsd.close socket;
+      push_frame None;
+    | `Ping ->
+      push_frame (Some `Ping)
+    | `Pong ->
+      push_frame (Some `Pong)
+    | `Other _ ->
+      () (* TODO Log? *)
+    | `Text
+    | `Binary
+    | `Continuation ->
+      push_frame (Some (`Data payload))
+  in
+
+  let eof () =
+    Websocketaf.Wsd.close socket;
+    push_frame None
+  in
+
+  (* The reader retrieves the next frame. If it is a data frame, it keeps a
+     reference to the payload across multiple reader calls, until the payload is
+     exhausted. *)
+  (* TODO What's the best way to signal FIN? As a property of the last chunk, or
+     after the last chunk? WebSockets use the former, but the current
+     websocket/af API suggests the latter. *)
+  let closed = ref false in
+  let current_payload = ref None in
+
+  (* TODO Can this be canceled by a user's close? i.e. will that eventually
+     cause a call to eof above? *)
+  let rec read ~data ~close ~flush ~ping ~pong =
+    if !closed then
       close ()
+    else
+      match !current_payload with
+      | None ->
+        Lwt.on_success (Lwt_stream.get frames) begin function
+        | None ->
+          closed := true;
+          close ()
+        | Some `Ping ->
+          ping ()
+        | Some `Pong ->
+          pong ()
+        | Some (`Data payload) ->
+          current_payload := Some payload;
+          read ~data ~close ~flush ~ping ~pong
+        end
+      | Some payload ->
+        Websocketaf.Payload.schedule_read
+          payload
+          ~on_read:(fun buffer ~off ~len ->
+            (* TODO Implement FIN. *)
+            data buffer off len true)
+          ~on_eof:(fun () ->
+            current_payload := None;
+            read ~data ~close ~flush ~ping ~pong)
   in
 
   (* TODO Re-expose kind. *)
-  let write buffer offset length _fin ~ok ~close:_ =
-    Websocketaf.Wsd.schedule
-      socket ~kind:`Text buffer ~off:offset ~len:length;
-    ok ()
+  let write buffer offset length _fin ~ok ~close =
+    if !closed then
+      close ()
+    else begin
+      Websocketaf.Wsd.schedule
+        socket ~kind:`Text buffer ~off:offset ~len:length;
+      ok ()
+    end
   in
 
-  (* TODO Implement (for the first time). *)
-  let flush ~ok ~close:_ =
-    ok () in
+  let flush ~ok ~close =
+    if !closed then
+      close ()
+    else
+      Websocketaf.Wsd.flushed socket ok
+  in
 
-  let ping ~ok ~close:_ =
-    ok () in
+  let ping ~ok ~close =
+    if !closed then
+      close ()
+    else begin
+      Websocketaf.Wsd.send_ping socket;
+      ok ()
+    end
+  in
 
-  let pong ~ok ~close:_ =
-    ok () in
+  let pong ~ok ~close =
+    if !closed then
+      close ()
+    else begin
+      Websocketaf.Wsd.send_pong socket;
+      ok ()
+    end
+  in
 
   (* TODO Re-expose close code. *)
   let close () =
-    Websocketaf.Wsd.close socket in
+    closed := true;
+    Websocketaf.Wsd.close socket
+  in
 
   let websocket =
     Stream.stream ~read ~write ~flush ~ping ~pong ~close in
@@ -87,50 +153,6 @@ let websocket_handler user's_websocket_handler socket =
   Lwt.async (fun () ->
     user's_websocket_handler websocket);
 
-  (* The code isn't very efficient at the moment, doing multiple copies while
-     assembling a message. However, multi-fragment messages should be relatively
-     rare. *)
-
-  (* This function is called on each frame received. In this high-level handler.
-     we automatically respond to all control opcodes. *)
-  let frame ~opcode ~is_fin ~len:_ payload =
-    match opcode with
-    | `Connection_close ->
-      Websocketaf.Wsd.close socket;
-      push_message None;
-    | `Ping ->
-      Websocketaf.Wsd.send_pong socket
-    | `Pong ->
-      ()
-    | `Other _ ->
-      ()
-
-    | `Text
-    | `Binary
-    | `Continuation ->
-      let rec read () =
-        Websocketaf.Payload.schedule_read
-          payload
-          ~on_read:(fun buffer ~off ~len ->
-            let fragment =
-              Lwt_bytes.to_string (Lwt_bytes.proxy buffer off len) in
-            message_frames := fragment::!message_frames;
-            read ())
-        ~on_eof:(fun () ->
-          if is_fin then begin
-            let message = String.concat "" (List.rev !message_frames) in
-            message_frames := [];
-            push_message (Some message)
-          end)
-      in
-      read ()
-  in
-
-  let eof () =
-    push_message None;
-    Websocketaf.Wsd.close socket
-  in
-
   Websocketaf.Server_connection.{frame; eof}
 
 

From fd0ba1fa599fe3442d9a17d7d206119b1cc8e94a Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 15:56:37 +0300
Subject: [PATCH 032/312] Reorder stream.ml

In particular, the convenience readers need to be last, so that they can
respond to ping with pong automatically.
---
 src/pure/stream.ml | 172 ++++++++++++++++++++++-----------------------
 1 file changed, 86 insertions(+), 86 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 61cb1ec8..191a4bb1 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -46,6 +46,16 @@ type stream = {
   close : unit -> unit;
 }
 
+let stream ~read ~write ~flush ~ping ~pong ~close =
+  {
+    read;
+    write;
+    flush;
+    ping;
+    pong;
+    close;
+  }
+
 let read_only ~read ~close =
   {
     read;
@@ -97,77 +107,19 @@ let string the_string =
     read_only ~read ~close
   end
 
+let duplex ~read ~write ~close =
+  {
+    read = read.read;
+    write = write.write;
+    flush = write.flush;
+    ping = write.ping;
+    pong = write.pong;
+    close;
+  }
+
 let read stream ~data ~close ~flush =
   stream.read ~data ~close ~flush
 
-let read_convenience stream =
-  let promise, resolver = Lwt.wait () in
-
-  let rec loop () =
-    stream.read
-      ~data:(fun buffer offset length _fin ->
-        Bigstringaf.sub buffer ~off:offset ~len:length
-        |> Bigstringaf.to_string
-        |> Option.some
-        |> Lwt.wakeup_later resolver)
-
-      ~close:(fun () ->
-        Lwt.wakeup_later resolver None)
-
-      ~flush:loop
-
-      (* TODO This requires reordering the implementations and taking a harder
-         look at all these functions.
-         Upon a ping event, assume that we are on a read-write, duplex WebSocket
-         stream, and send a pong. *)
-      ~ping:loop
-
-      ~pong:loop
-  in
-  loop ();
-
-  promise
-
-let read_until_close stream =
-  let promise, resolver = Lwt.wait () in
-  let length = ref 0 in
-  let buffer = ref (Bigstringaf.create 4096) in
-
-  let rec loop () =
-    stream.read
-      ~data:(fun chunk offset chunk_length _fin ->
-        let new_length = !length + chunk_length in
-
-        if new_length > Bigstringaf.length !buffer then begin
-          let new_buffer = Bigstringaf.create (new_length * 2) in
-          Bigstringaf.blit
-            !buffer ~src_off:0 new_buffer ~dst_off:0 ~len:!length;
-          buffer := new_buffer
-        end;
-
-        Bigstringaf.blit
-          chunk ~src_off:offset !buffer ~dst_off:!length ~len:chunk_length;
-        length := new_length;
-
-        loop ())
-
-      ~close:(fun () ->
-        Bigstringaf.sub !buffer ~off:0 ~len:!length
-        |> Bigstringaf.to_string
-        |> Lwt.wakeup_later resolver)
-
-      ~flush:loop
-
-      (* TODO As with the previous function, should respond to a ping with a
-         pong. *)
-      ~ping:loop
-
-      ~pong:loop
-  in
-  loop ();
-
-  promise
-
 let close stream =
   stream.close ()
 
@@ -377,22 +329,70 @@ let pipe () =
 
   {read; write; flush; close; ping; pong}
 
-let duplex ~read ~write ~close =
-  {
-    read = read.read;
-    write = write.write;
-    flush = write.flush;
-    ping = write.ping;
-    pong = write.pong;
-    close;
-  }
+let read_convenience stream =
+  let promise, resolver = Lwt.wait () in
 
-let stream ~read ~write ~flush ~ping ~pong ~close =
-  {
-    read;
-    write;
-    flush;
-    ping;
-    pong;
-    close;
-  }
+  let rec loop () =
+    stream.read
+      ~data:(fun buffer offset length _fin ->
+        Bigstringaf.sub buffer ~off:offset ~len:length
+        |> Bigstringaf.to_string
+        |> Option.some
+        |> Lwt.wakeup_later resolver)
+
+      ~close:(fun () ->
+        Lwt.wakeup_later resolver None)
+
+      ~flush:loop
+
+      (* TODO This requires reordering the implementations and taking a harder
+         look at all these functions.
+         Upon a ping event, assume that we are on a read-write, duplex WebSocket
+         stream, and send a pong. *)
+      ~ping:loop
+
+      ~pong:loop
+  in
+  loop ();
+
+  promise
+
+let read_until_close stream =
+  let promise, resolver = Lwt.wait () in
+  let length = ref 0 in
+  let buffer = ref (Bigstringaf.create 4096) in
+
+  let rec loop () =
+    stream.read
+      ~data:(fun chunk offset chunk_length _fin ->
+        let new_length = !length + chunk_length in
+
+        if new_length > Bigstringaf.length !buffer then begin
+          let new_buffer = Bigstringaf.create (new_length * 2) in
+          Bigstringaf.blit
+            !buffer ~src_off:0 new_buffer ~dst_off:0 ~len:!length;
+          buffer := new_buffer
+        end;
+
+        Bigstringaf.blit
+          chunk ~src_off:offset !buffer ~dst_off:!length ~len:chunk_length;
+        length := new_length;
+
+        loop ())
+
+      ~close:(fun () ->
+        Bigstringaf.sub !buffer ~off:0 ~len:!length
+        |> Bigstringaf.to_string
+        |> Lwt.wakeup_later resolver)
+
+      ~flush:loop
+
+      (* TODO As with the previous function, should respond to a ping with a
+         pong. *)
+      ~ping:loop
+
+      ~pong:loop
+  in
+  loop ();
+
+  promise

From 1f0ef738451db5bc143b6f96d58ba769c95bfa70 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 16:00:37 +0300
Subject: [PATCH 033/312] Stream convenience readers: auto-reply to ping

---
 src/pure/stream.ml | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 191a4bb1..a304f226 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -345,11 +345,11 @@ let read_convenience stream =
 
       ~flush:loop
 
-      (* TODO This requires reordering the implementations and taking a harder
-         look at all these functions.
-         Upon a ping event, assume that we are on a read-write, duplex WebSocket
-         stream, and send a pong. *)
-      ~ping:loop
+      ~ping:(fun () ->
+        stream.pong
+          ~ok:loop
+          ~close:(fun () ->
+            Lwt.wakeup_later resolver None))
 
       ~pong:loop
   in
@@ -361,6 +361,11 @@ let read_until_close stream =
   let promise, resolver = Lwt.wait () in
   let length = ref 0 in
   let buffer = ref (Bigstringaf.create 4096) in
+  let close () =
+    Bigstringaf.sub !buffer ~off:0 ~len:!length
+    |> Bigstringaf.to_string
+    |> Lwt.wakeup_later resolver
+  in
 
   let rec loop () =
     stream.read
@@ -380,16 +385,12 @@ let read_until_close stream =
 
         loop ())
 
-      ~close:(fun () ->
-        Bigstringaf.sub !buffer ~off:0 ~len:!length
-        |> Bigstringaf.to_string
-        |> Lwt.wakeup_later resolver)
+      ~close
 
       ~flush:loop
 
-      (* TODO As with the previous function, should respond to a ping with a
-         pong. *)
-      ~ping:loop
+      ~ping:(fun () ->
+        stream.pong ~ok:loop ~close)
 
       ~pong:loop
   in

From 018b459658fda5e741cb05036e08ef621fbd4661 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 16:24:12 +0300
Subject: [PATCH 034/312] Introduce Stream.write type abbreviation

---
 src/http/http.ml    |  1 +
 src/pure/stream.ml  |  5 +++++
 src/pure/stream.mli | 29 +++++++++++++++--------------
 3 files changed, 21 insertions(+), 14 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index 9cf24891..9efefcca 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -156,6 +156,7 @@ let websocket_handler user's_websocket_handler socket =
   Websocketaf.Server_connection.{frame; eof}
 
 
+
 (* Wraps the user's Dream handler in the kind of handler expected by http/af.
    The scheme is simple: wait for http/af "Reqd.t"s (partially parsed
    connections), convert their fields to Dream.request, call the user's handler,
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index a304f226..cbf536c3 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -19,6 +19,11 @@ type read =
   pong:(unit -> unit) ->
     unit
 
+type write =
+  ok:(unit -> unit) ->
+  close:(unit -> unit) ->
+    unit
+
 type stream = {
   read : read;
 
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 398a1263..e037dbb9 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -57,6 +57,13 @@ type read =
     reading function, one of the callbacks will eventually be called, according
     to which event occurs next on the stream. *)
 
+type write =
+  ok:(unit -> unit) ->
+  close:(unit -> unit) ->
+    unit
+(** A writing function. Pushes an event into a stream. May take additional
+    arguments before [~ok]. *)
+
 val read_only : read:read -> close:(unit -> unit) -> stream
 (** Creates a read-only stream from the given reader. [~close] is called in
     response to {!Stream.close}. It doesn't need to call {!Stream.close} again
@@ -79,13 +86,12 @@ val duplex : read:stream -> write:stream -> close:(unit -> unit) -> stream
 (** A stream whose reading functions behave like [~read], and whose writing
     functions behave like [~write]. *)
 
-(* TODO Seriously fix this signature. *)
 val stream :
   read:read ->
-  write:(buffer -> int -> int -> bool -> ok:(unit -> unit) -> close:(unit -> unit) -> unit) ->
-  flush:(ok:(unit -> unit) -> close:(unit -> unit) -> unit) ->
-  ping:(ok:(unit -> unit) -> close:(unit -> unit) -> unit) ->
-  pong:(ok:(unit -> unit) -> close:(unit -> unit) -> unit) ->
+  write:(buffer -> int -> int -> bool -> write) ->
+  flush:write ->
+  ping:write ->
+  pong:write ->
   close:(unit -> unit) ->
     stream
 (** A general stream. *)
@@ -106,26 +112,21 @@ val read_until_close : stream -> string promise
 (** Reads a stream completely until [~close], and accumulates the data into a
     string. *)
 
-val write :
-  stream ->
-  buffer -> int -> int -> bool ->
-  ok:(unit -> unit) ->
-  close:(unit -> unit) ->
-    unit
+val write : stream -> buffer -> int -> int -> bool -> write
 (** A writing function that sends a data buffer on the given stream. No more
     writing functions should be called on the stream until this function calls
     [~ok]. The [bool] argument is the [FIN] flag that indicates the end of a
     WebSocket message. It is ignored by non-WebSocket streams. *)
 
-val flush : stream -> ok:(unit -> unit) -> close:(unit -> unit) -> unit
+val flush : stream -> write
 (** A writing function that asks for the given stream to be flushed. The meaning
     of flushing depends on the implementation of the stream. No more writing
     functions should be called on the stream until this function calls [~ok]. *)
 
-val ping : stream -> ok:(unit -> unit) -> close:(unit -> unit) -> unit
+val ping : stream -> write
 (** A writing function that sends a ping event on the given stream. This is only
     meaningful for WebSockets. *)
 
-val pong : stream -> ok:(unit -> unit) -> close:(unit -> unit) -> unit
+val pong : stream -> write
 (** A writing function that sends a pong event on the given stream. This is only
     meaningful for WebSockets. *)

From 4e66f78a29426bc741f8445a592755593580bf73 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 16:39:52 +0300
Subject: [PATCH 035/312] WebSockets: restore FIN handling

---
 src/http/http.ml | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index 9efefcca..062a8075 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -42,7 +42,7 @@ let websocket_handler user's_websocket_handler socket =
   (* Frame reader called by websocket/af on each frame received. There is no
      good way to truly throttle this, hence this frame reader pushes frame
      objects into the above frame queue for the reader to take from later. *)
-  let frame ~opcode ~is_fin:_ ~len:_ payload =
+  let frame ~opcode ~is_fin ~len:_ payload =
     match opcode with
     | `Connection_close ->
       Websocketaf.Wsd.close socket;
@@ -56,7 +56,7 @@ let websocket_handler user's_websocket_handler socket =
     | `Text
     | `Binary
     | `Continuation ->
-      push_frame (Some (`Data payload))
+      push_frame (Some (`Data (payload, is_fin)))
   in
 
   let eof () =
@@ -67,11 +67,9 @@ let websocket_handler user's_websocket_handler socket =
   (* The reader retrieves the next frame. If it is a data frame, it keeps a
      reference to the payload across multiple reader calls, until the payload is
      exhausted. *)
-  (* TODO What's the best way to signal FIN? As a property of the last chunk, or
-     after the last chunk? WebSockets use the former, but the current
-     websocket/af API suggests the latter. *)
   let closed = ref false in
   let current_payload = ref None in
+  let last_chunk = ref None in
 
   (* TODO Can this be canceled by a user's close? i.e. will that eventually
      cause a call to eof above? *)
@@ -93,15 +91,25 @@ let websocket_handler user's_websocket_handler socket =
           current_payload := Some payload;
           read ~data ~close ~flush ~ping ~pong
         end
-      | Some payload ->
+      | Some (payload, fin) ->
         Websocketaf.Payload.schedule_read
           payload
           ~on_read:(fun buffer ~off ~len ->
-            (* TODO Implement FIN. *)
-            data buffer off len true)
+            match !last_chunk with
+            | None ->
+              last_chunk := Some (buffer, off, len);
+              read ~data ~close ~flush ~ping ~pong
+            | Some (last_buffer, last_offset, last_length) ->
+              last_chunk := Some (buffer, off, len);
+              data last_buffer last_offset last_length false)
           ~on_eof:(fun () ->
             current_payload := None;
-            read ~data ~close ~flush ~ping ~pong)
+            match !last_chunk with
+            | None ->
+              read ~data ~close ~flush ~ping ~pong
+            | Some (last_buffer, last_offset, last_length) ->
+              last_chunk := None;
+              data last_buffer last_offset last_length fin)
   in
 
   (* TODO Re-expose kind. *)

From ec56e226f949a25764494e76aa11d2cc46697175 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 17:00:09 +0300
Subject: [PATCH 036/312] Restore WebSocket message kind handling

---
 src/dream.mli                     |  2 +-
 src/http/adapt.ml                 |  2 +-
 src/http/http.ml                  | 28 +++++++++++++++-----------
 src/pure/inmost.ml                | 20 +++++++++++--------
 src/pure/stream.ml                | 33 +++++++++++++++++++------------
 src/pure/stream.mli               | 10 +++++-----
 test/expect/pure/stream/stream.ml | 30 ++++++++++++++--------------
 7 files changed, 70 insertions(+), 55 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index cee3272e..cf28bf36 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -732,7 +732,7 @@ val body_stream : 'a message -> stream
 (* TODO Argument order? *)
 val next :
   stream ->
-  data:(buffer -> int -> int -> bool -> unit) ->
+  data:(buffer -> int -> int -> bool -> bool -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
   ping:(unit -> unit) ->
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index f1927fe4..1d3dba89 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -38,7 +38,7 @@ let forward_body_general
         ~ping
         ~pong
 
-  and data chunk off len _fin =
+  and data chunk off len _binary _fin =
     write_buffer ~off ~len chunk;
     send ()
 
diff --git a/src/http/http.ml b/src/http/http.ml
index 062a8075..35cc5a24 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -38,6 +38,7 @@ let websocket_handler user's_websocket_handler socket =
      backpressure with the current API of websocket/af, so that will have to be
      added later. The user-facing API of Dream does support backpressure. *)
   let frames, push_frame = Lwt_stream.create () in
+  let message_is_binary = ref true in
 
   (* Frame reader called by websocket/af on each frame received. There is no
      good way to truly throttle this, hence this frame reader pushes frame
@@ -53,10 +54,14 @@ let websocket_handler user's_websocket_handler socket =
       push_frame (Some `Pong)
     | `Other _ ->
       () (* TODO Log? *)
-    | `Text
-    | `Binary
+    | `Text ->
+      message_is_binary := false;
+      push_frame (Some (`Data (payload, false, is_fin)))
+    | `Binary ->
+      message_is_binary := true;
+      push_frame (Some (`Data (payload, true, is_fin)))
     | `Continuation ->
-      push_frame (Some (`Data (payload, is_fin)))
+      push_frame (Some (`Data (payload, !message_is_binary, is_fin)))
   in
 
   let eof () =
@@ -91,7 +96,7 @@ let websocket_handler user's_websocket_handler socket =
           current_payload := Some payload;
           read ~data ~close ~flush ~ping ~pong
         end
-      | Some (payload, fin) ->
+      | Some (payload, binary, fin) ->
         Websocketaf.Payload.schedule_read
           payload
           ~on_read:(fun buffer ~off ~len ->
@@ -101,7 +106,7 @@ let websocket_handler user's_websocket_handler socket =
               read ~data ~close ~flush ~ping ~pong
             | Some (last_buffer, last_offset, last_length) ->
               last_chunk := Some (buffer, off, len);
-              data last_buffer last_offset last_length false)
+              data last_buffer last_offset last_length binary false)
           ~on_eof:(fun () ->
             current_payload := None;
             match !last_chunk with
@@ -109,16 +114,15 @@ let websocket_handler user's_websocket_handler socket =
               read ~data ~close ~flush ~ping ~pong
             | Some (last_buffer, last_offset, last_length) ->
               last_chunk := None;
-              data last_buffer last_offset last_length fin)
+              data last_buffer last_offset last_length binary fin)
   in
 
-  (* TODO Re-expose kind. *)
-  let write buffer offset length _fin ~ok ~close =
+  let write buffer offset length binary _fin ~ok ~close =
+    let kind = if binary then `Binary else `Text in
     if !closed then
       close ()
     else begin
-      Websocketaf.Wsd.schedule
-        socket ~kind:`Text buffer ~off:offset ~len:length;
+      Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
       ok ()
     end
   in
@@ -211,7 +215,7 @@ let wrap_handler
       Httpaf.Body.Reader.schedule_read
         body
         ~on_eof:close
-        ~on_read:(fun buffer ~off ~len -> data buffer off len false)
+        ~on_read:(fun buffer ~off ~len -> data buffer off len true false)
     in
     let close () =
       Httpaf.Body.Reader.close body in
@@ -354,7 +358,7 @@ let wrap_handler_h2
       H2.Body.schedule_read
         body
         ~on_eof:close
-        ~on_read:(fun buffer ~off ~len -> data buffer off len false)
+        ~on_read:(fun buffer ~off ~len -> data buffer off len true false)
     in
     let close () =
       H2.Body.close_reader body in
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index c5e97f68..d3ad4b53 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -318,6 +318,7 @@ let with_stream message =
 (* TODO Need to expose FIN. However, it can't have any effect even on
    WebSockets, because websocket/af does not offer the ability to pass FIN. It
    is hardcoded to true. *)
+(* TODO Also expose binary/text. *)
 let write message chunk =
   let promise, resolver = Lwt.wait () in
   let length = String.length chunk in
@@ -325,7 +326,7 @@ let write message chunk =
   (* TODO Better handling of close? But it can't even occur with http/af. *)
   Stream.write
     message.body
-    buffer 0 length false
+    buffer 0 length true false
     ~ok:(Lwt.wakeup_later resolver)
     ~close:(fun () -> Lwt.wakeup_later_exn resolver End_of_file);
   promise
@@ -339,9 +340,10 @@ let write_buffer ?(offset = 0) ?length message chunk =
   in
   (* TODO Proper handling of close. *)
   (* TODO As above, properly expose FIN. *)
+  (* TODO Also expose binary/text. *)
   Stream.write
     message.body
-    chunk offset length false
+    chunk offset length true false
     ~ok:(Lwt.wakeup_later resolver)
     ~close:(Lwt.wakeup_later resolver);
   promise
@@ -560,16 +562,18 @@ let websocket ?headers handler =
   in
   Lwt.return response
 
-let send ?kind:_ websocket message =
-  (* let kind =
+let send ?kind websocket message =
+  let binary =
     match kind with
-    | None | Some `Text -> `Text
-    | Some `Binary -> `Binary
-  in *)
+    | None | Some `Text -> false
+    | Some `Binary -> true
+  in
   let promise, resolver = Lwt.wait () in
   let length = String.length message in
   Stream.write
-    websocket (Bigstringaf.of_string ~off:0 ~len:length message) 0 length true
+    websocket
+    (Bigstringaf.of_string ~off:0 ~len:length message) 0 length
+    binary true
     ~ok:(Lwt.wakeup_later resolver)
     ~close:(Lwt.wakeup_later resolver);
   (* TODO The API will likely have to change to report closing. *)
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index cbf536c3..d88062c2 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -12,7 +12,7 @@ type 'a promise =
   'a Lwt.t
 
 type read =
-  data:(buffer -> int -> int -> bool -> unit) ->
+  data:(buffer -> int -> int -> bool -> bool -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
   ping:(unit -> unit) ->
@@ -28,7 +28,7 @@ type stream = {
   read : read;
 
   write :
-    buffer -> int -> int -> bool ->
+    buffer -> int -> int -> bool -> bool ->
     ok:(unit -> unit) ->
     close:(unit -> unit) ->
       unit;
@@ -65,7 +65,7 @@ let read_only ~read ~close =
   {
     read;
     write =
-      (fun _buffer _offset _length _fin ~ok:_ ~close:_ ->
+      (fun _buffer _offset _length _binary _fin ~ok:_ ~close:_ ->
         raise (Failure "write to a read-only stream"));
     flush =
       (fun ~ok:_ ~close:_ ->
@@ -100,7 +100,7 @@ let string the_string =
         let length = String.length stored_string in
         data
           (Bigstringaf.of_string ~off:0 ~len:length stored_string)
-          0 length true
+          0 length true true
       | None ->
         close ()
     in
@@ -128,8 +128,8 @@ let read stream ~data ~close ~flush =
 let close stream =
   stream.close ()
 
-let write stream buffer offset length fin ~ok ~close =
-  stream.write buffer offset length fin ~ok ~close
+let write stream buffer offset length binary fin ~ok ~close =
+  stream.write buffer offset length binary fin ~ok ~close
 
 let flush stream ~ok ~close =
   stream.flush ~ok ~close
@@ -148,7 +148,7 @@ type pipe = {
     | `Closed
   ];
 
-  mutable read_data_callback : buffer -> int -> int -> bool -> unit;
+  mutable read_data_callback : buffer -> int -> int -> bool -> bool -> unit;
   mutable read_close_callback : unit -> unit;
   mutable read_flush_callback : unit -> unit;
   mutable read_ping_callback : unit -> unit;
@@ -163,6 +163,7 @@ type pipe = {
   mutable write_buffer : buffer;
   mutable write_offset : int;
   mutable write_length : int;
+  mutable write_binary : bool;
   mutable write_fin : bool;
   mutable write_ok_callback : unit -> unit;
   mutable write_close_callback : unit -> unit;
@@ -171,7 +172,7 @@ type pipe = {
 let dummy_buffer =
   Bigstringaf.create 0
 
-let dummy_read_data_callback _buffer _offset _length _fin =
+let dummy_read_data_callback _buffer _offset _length _binary _fin =
   () [@coverage off]
 
 let clean_up_reader_fields pipe =
@@ -200,6 +201,7 @@ let pipe () =
     write_buffer = dummy_buffer;
     write_offset = 0;
     write_length = 0;
+    write_binary = true;
     write_fin = false;
     write_ok_callback = ignore;
     write_close_callback = ignore;
@@ -224,7 +226,11 @@ let pipe () =
       begin match internal.write_kind with
       | `Data ->
         data
-          buffer internal.write_offset internal.write_length internal.write_fin
+          buffer
+          internal.write_offset
+          internal.write_length
+          internal.write_binary
+          internal.write_fin
       | `Flush -> flush ()
       | `Ping -> ping ()
       | `Pong -> pong ()
@@ -234,7 +240,7 @@ let pipe () =
       close ()
   in
 
-  let write buffer offset length fin ~ok ~close =
+  let write buffer offset length binary fin ~ok ~close =
     match internal.state with
     | `Idle ->
       internal.state <- `Writer_waiting;
@@ -242,6 +248,7 @@ let pipe () =
       internal.write_buffer <- buffer;
       internal.write_offset <- offset;
       internal.write_length <- length;
+      internal.write_binary <- binary;
       internal.write_fin <- fin;
       internal.write_ok_callback <- ok;
       internal.write_close_callback <- close
@@ -249,7 +256,7 @@ let pipe () =
       internal.state <- `Idle;
       let read_data_callback = internal.read_data_callback in
       clean_up_reader_fields internal;
-      read_data_callback buffer offset length fin;
+      read_data_callback buffer offset length binary fin;
       ok ()
     | `Writer_waiting ->
       raise (Failure "stream write: the previous write has not completed")
@@ -339,7 +346,7 @@ let read_convenience stream =
 
   let rec loop () =
     stream.read
-      ~data:(fun buffer offset length _fin ->
+      ~data:(fun buffer offset length _binary _fin ->
         Bigstringaf.sub buffer ~off:offset ~len:length
         |> Bigstringaf.to_string
         |> Option.some
@@ -374,7 +381,7 @@ let read_until_close stream =
 
   let rec loop () =
     stream.read
-      ~data:(fun chunk offset chunk_length _fin ->
+      ~data:(fun chunk offset chunk_length _binary _fin ->
         let new_length = !length + chunk_length in
 
         if new_length > Bigstringaf.length !buffer then begin
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index e037dbb9..796ed6ca 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -47,7 +47,7 @@ type stream
     The entire interface is pull-based for flow control. *)
 
 type read =
-  data:(buffer -> int -> int -> bool -> unit) ->
+  data:(buffer -> int -> int -> bool -> bool -> unit) ->
   close:(unit -> unit) ->
   flush:(unit -> unit) ->
   ping:(unit -> unit) ->
@@ -88,7 +88,7 @@ val duplex : read:stream -> write:stream -> close:(unit -> unit) -> stream
 
 val stream :
   read:read ->
-  write:(buffer -> int -> int -> bool -> write) ->
+  write:(buffer -> int -> int -> bool -> bool -> write) ->
   flush:write ->
   ping:write ->
   pong:write ->
@@ -112,11 +112,11 @@ val read_until_close : stream -> string promise
 (** Reads a stream completely until [~close], and accumulates the data into a
     string. *)
 
-val write : stream -> buffer -> int -> int -> bool -> write
+val write : stream -> buffer -> int -> int -> bool -> bool -> write
 (** A writing function that sends a data buffer on the given stream. No more
     writing functions should be called on the stream until this function calls
-    [~ok]. The [bool] argument is the [FIN] flag that indicates the end of a
-    WebSocket message. It is ignored by non-WebSocket streams. *)
+    [~ok]. The [bool] arguments are whether the message is binary and whether
+    the [FIN] flag should be set. They are ignored by non-WebSocket streams. *)
 
 val flush : stream -> write
 (** A writing function that asks for the given stream to be flushed. The meaning
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index c64e47d5..c30f0eed 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -11,9 +11,9 @@ module Stream = Dream__pure.Stream
 
 let read_and_dump stream =
   Stream.read stream
-    ~data:(fun buffer offset length fin ->
-      Printf.printf "read: data: FIN=%b %s\n"
-        fin (Bigstringaf.substring buffer ~off:offset ~len:length))
+    ~data:(fun buffer offset length binary fin ->
+      Printf.printf "read: data: BINARY=%b FIN=%b %s\n"
+        binary fin (Bigstringaf.substring buffer ~off:offset ~len:length))
     ~close:(fun () ->
       print_endline "read: close")
     ~flush:(fun () ->
@@ -30,8 +30,8 @@ let flush_and_dump stream =
     ~close:(fun () ->
       print_endline "flush: close")
 
-let write_and_dump stream buffer offset length fin =
-  Stream.write stream buffer offset length fin
+let write_and_dump stream buffer offset length binary fin =
+  Stream.write stream buffer offset length binary fin
     ~ok:(fun () ->
       print_endline "write: ok")
     ~close:(fun () ->
@@ -80,7 +80,7 @@ let%expect_test _ =
   Stream.close stream;
   read_and_dump stream;
   [%expect {|
-    read: data: FIN=true foo
+    read: data: BINARY=true FIN=true foo
     read: close
     read: close
     read: close |}]
@@ -101,7 +101,7 @@ let%expect_test _ =
 
 let%expect_test _ =
   let stream = Stream.empty in
-  (try write_and_dump stream Bigstringaf.empty 0 0 false
+  (try write_and_dump stream Bigstringaf.empty 0 0 false false
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
   (try flush_and_dump stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
@@ -190,19 +190,19 @@ let%expect_test _ =
   let stream = Stream.pipe () in
   read_and_dump stream;
   print_endline "checkpoint 1";
-  write_and_dump stream buffer 0 3 true;
-  write_and_dump stream buffer 1 1 false;
+  write_and_dump stream buffer 0 3 false true;
+  write_and_dump stream buffer 1 1 true false;
   print_endline "checkpoint 2";
   read_and_dump stream;
-  write_and_dump stream buffer 0 3 true;
-  try write_and_dump stream buffer 0 3 false
+  write_and_dump stream buffer 0 3 true true;
+  try write_and_dump stream buffer 0 3 false false
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
-    read: data: FIN=true foo
+    read: data: BINARY=false FIN=true foo
     write: ok
     checkpoint 2
-    read: data: FIN=false o
+    read: data: BINARY=true FIN=false o
     write: ok
     (Failure "stream write: the previous write has not completed") |}]
 
@@ -273,9 +273,9 @@ let%expect_test _ =
 
 let%expect_test _ =
   let stream = Stream.pipe () in
-  write_and_dump stream buffer 0 3 true;
+  write_and_dump stream buffer 0 3 true true;
   Stream.close stream;
-  write_and_dump stream buffer 0 3 false;
+  write_and_dump stream buffer 0 3 true false;
   [%expect {|
     write: close
     write: close |}]

From a339ef917d5b6d6bb9f3890e4d9f5dca61377287 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 17:32:36 +0300
Subject: [PATCH 037/312] WebSockets: restore and expose close code sending

Close codes still can't be received due to limitations of the
websocket/af API.
---
 src/dream.mli                     |  2 +-
 src/http/adapt.ml                 |  4 +-
 src/http/http.ml                  | 25 +++++----
 src/pure/inmost.ml                | 14 ++---
 src/pure/stream.ml                | 88 ++++++++++++-------------------
 src/pure/stream.mli               | 12 ++---
 test/expect/pure/stream/stream.ml | 86 +++++++++++++++---------------
 7 files changed, 106 insertions(+), 125 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index cf28bf36..e87f33b0 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -733,7 +733,7 @@ val body_stream : 'a message -> stream
 val next :
   stream ->
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(unit -> unit) ->
+  close:(int -> unit) ->
   flush:(unit -> unit) ->
   ping:(unit -> unit) ->
   pong:(unit -> unit) ->
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index 1d3dba89..a3d13809 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -64,7 +64,7 @@ let forward_body
     (Httpaf.Body.Writer.write_string body)
     (Httpaf.Body.Writer.write_bigstring body)
     (Httpaf.Body.Writer.flush body)
-    (fun () -> Httpaf.Body.Writer.close body)
+    (fun _code -> Httpaf.Body.Writer.close body)
 
 let forward_body_h2
     (response : Dream.response)
@@ -75,4 +75,4 @@ let forward_body_h2
     (H2.Body.write_string body)
     (H2.Body.write_bigstring body)
     (H2.Body.flush body)
-    (fun () -> H2.Body.close_writer body)
+    (fun _code -> H2.Body.close_writer body)
diff --git a/src/http/http.ml b/src/http/http.ml
index 35cc5a24..fef48307 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -80,14 +80,14 @@ let websocket_handler user's_websocket_handler socket =
      cause a call to eof above? *)
   let rec read ~data ~close ~flush ~ping ~pong =
     if !closed then
-      close ()
+      close 1000
     else
       match !current_payload with
       | None ->
         Lwt.on_success (Lwt_stream.get frames) begin function
         | None ->
           closed := true;
-          close ()
+          close 1000
         | Some `Ping ->
           ping ()
         | Some `Pong ->
@@ -120,7 +120,7 @@ let websocket_handler user's_websocket_handler socket =
   let write buffer offset length binary _fin ~ok ~close =
     let kind = if binary then `Binary else `Text in
     if !closed then
-      close ()
+      close 1000
     else begin
       Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
       ok ()
@@ -129,14 +129,14 @@ let websocket_handler user's_websocket_handler socket =
 
   let flush ~ok ~close =
     if !closed then
-      close ()
+      close 1000
     else
       Websocketaf.Wsd.flushed socket ok
   in
 
   let ping ~ok ~close =
     if !closed then
-      close ()
+      close 1000
     else begin
       Websocketaf.Wsd.send_ping socket;
       ok ()
@@ -145,17 +145,16 @@ let websocket_handler user's_websocket_handler socket =
 
   let pong ~ok ~close =
     if !closed then
-      close ()
+      close 1000
     else begin
       Websocketaf.Wsd.send_pong socket;
       ok ()
     end
   in
 
-  (* TODO Re-expose close code. *)
-  let close () =
+  let close code =
     closed := true;
-    Websocketaf.Wsd.close socket
+    Websocketaf.Wsd.close ~code:(`Other code) socket
   in
 
   let websocket =
@@ -214,10 +213,10 @@ let wrap_handler
     let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
       Httpaf.Body.Reader.schedule_read
         body
-        ~on_eof:close
+        ~on_eof:(fun () -> close 1000)
         ~on_read:(fun buffer ~off ~len -> data buffer off len true false)
     in
-    let close () =
+    let close _code =
       Httpaf.Body.Reader.close body in
     let body =
       Stream.read_only ~read ~close in
@@ -357,10 +356,10 @@ let wrap_handler_h2
     let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
       H2.Body.schedule_read
         body
-        ~on_eof:close
+        ~on_eof:(fun () -> close 1000)
         ~on_read:(fun buffer ~off ~len -> data buffer off len true false)
     in
-    let close () =
+    let close _code =
       H2.Body.close_reader body in
     let body =
       Stream.read_only ~read ~close in
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index d3ad4b53..3b757d84 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -328,7 +328,7 @@ let write message chunk =
     message.body
     buffer 0 length true false
     ~ok:(Lwt.wakeup_later resolver)
-    ~close:(fun () -> Lwt.wakeup_later_exn resolver End_of_file);
+    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file);
   promise
 
 let write_buffer ?(offset = 0) ?length message chunk =
@@ -345,7 +345,7 @@ let write_buffer ?(offset = 0) ?length message chunk =
     message.body
     chunk offset length true false
     ~ok:(Lwt.wakeup_later resolver)
-    ~close:(Lwt.wakeup_later resolver);
+    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file);
   promise
 
 (* TODO How are remote closes actually handled? There is no way for http/af to
@@ -355,11 +355,11 @@ let flush message =
   Stream.flush
     message.body
     ~ok:(Lwt.wakeup_later resolver)
-    ~close:(fun () -> Lwt.wakeup_later_exn resolver End_of_file);
+    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file);
   promise
 
 let close_stream message =
-  Stream.close message.body;
+  Stream.close message.body 1000;
   Lwt.return_unit
 
 (* TODO Rename. *)
@@ -575,15 +575,15 @@ let send ?kind websocket message =
     (Bigstringaf.of_string ~off:0 ~len:length message) 0 length
     binary true
     ~ok:(Lwt.wakeup_later resolver)
-    ~close:(Lwt.wakeup_later resolver);
+    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file);
   (* TODO The API will likely have to change to report closing. *)
   promise
 
 let receive websocket =
   Stream.read_convenience websocket
 
-let close_websocket ?code:_ websocket =
-  Stream.close websocket;
+let close_websocket ?(code = 1000) websocket =
+  Stream.close websocket code;
   Lwt.return_unit
 
 let no_middleware handler request =
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index d88062c2..97c7afa6 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -13,7 +13,7 @@ type 'a promise =
 
 type read =
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(unit -> unit) ->
+  close:(int -> unit) ->
   flush:(unit -> unit) ->
   ping:(unit -> unit) ->
   pong:(unit -> unit) ->
@@ -21,34 +21,16 @@ type read =
 
 type write =
   ok:(unit -> unit) ->
-  close:(unit -> unit) ->
+  close:(int -> unit) ->
     unit
 
 type stream = {
   read : read;
-
-  write :
-    buffer -> int -> int -> bool -> bool ->
-    ok:(unit -> unit) ->
-    close:(unit -> unit) ->
-      unit;
-
-  flush :
-    ok:(unit -> unit) ->
-    close:(unit -> unit) ->
-      unit;
-
-  ping :
-    ok:(unit -> unit) ->
-    close:(unit -> unit) ->
-      unit;
-
-  pong :
-    ok:(unit -> unit) ->
-    close:(unit -> unit) ->
-      unit;
-
-  close : unit -> unit;
+  write : buffer -> int -> int -> bool -> bool -> write;
+  flush : write;
+  ping : write;
+  pong : write;
+  close : int -> unit;
 }
 
 let stream ~read ~write ~flush ~ping ~pong ~close =
@@ -81,7 +63,7 @@ let read_only ~read ~close =
 
 let empty =
   read_only
-    ~read:(fun ~data:_ ~close ~flush:_ ~ping:_ ~pong:_ -> close ())
+    ~read:(fun ~data:_ ~close ~flush:_ ~ping:_ ~pong:_ -> close 1000)
     ~close:ignore
 
 (* TODO This shows the awkwardness in string-to-string body reading. *)
@@ -102,10 +84,10 @@ let string the_string =
           (Bigstringaf.of_string ~off:0 ~len:length stored_string)
           0 length true true
       | None ->
-        close ()
+        close 1000
     in
 
-    let close () =
+    let close _ =
       string_ref := None;
     in
 
@@ -125,8 +107,8 @@ let duplex ~read ~write ~close =
 let read stream ~data ~close ~flush =
   stream.read ~data ~close ~flush
 
-let close stream =
-  stream.close ()
+let close stream code =
+  stream.close code
 
 let write stream buffer offset length binary fin ~ok ~close =
   stream.write buffer offset length binary fin ~ok ~close
@@ -145,11 +127,11 @@ type pipe = {
     | `Idle
     | `Reader_waiting
     | `Writer_waiting
-    | `Closed
+    | `Closed of int
   ];
 
   mutable read_data_callback : buffer -> int -> int -> bool -> bool -> unit;
-  mutable read_close_callback : unit -> unit;
+  mutable read_close_callback : int -> unit;
   mutable read_flush_callback : unit -> unit;
   mutable read_ping_callback : unit -> unit;
   mutable read_pong_callback : unit -> unit;
@@ -166,7 +148,7 @@ type pipe = {
   mutable write_binary : bool;
   mutable write_fin : bool;
   mutable write_ok_callback : unit -> unit;
-  mutable write_close_callback : unit -> unit;
+  mutable write_close_callback : int -> unit;
 }
 
 let dummy_buffer =
@@ -236,8 +218,8 @@ let pipe () =
       | `Pong -> pong ()
       end;
       write_ok_callback ()
-    | `Closed ->
-      close ()
+    | `Closed code ->
+      close code
   in
 
   let write buffer offset length binary fin ~ok ~close =
@@ -260,25 +242,25 @@ let pipe () =
       ok ()
     | `Writer_waiting ->
       raise (Failure "stream write: the previous write has not completed")
-    | `Closed ->
-      close ()
+    | `Closed code ->
+      close code
   in
 
-  let close () =
+  let close code =
     match internal.state with
     | `Idle ->
-      internal.state <- `Closed
+      internal.state <- `Closed code
     | `Reader_waiting ->
-      internal.state <- `Closed;
+      internal.state <- `Closed code;
       let read_close_callback = internal.read_close_callback in
       clean_up_reader_fields internal;
-      read_close_callback ()
+      read_close_callback code
     | `Writer_waiting ->
-      internal.state <- `Closed;
+      internal.state <- `Closed code;
       let write_close_callback = internal.write_close_callback in
       clean_up_writer_fields internal;
-      write_close_callback ()
-    | `Closed ->
+      write_close_callback code
+    | `Closed _code ->
       ()
   in
 
@@ -297,8 +279,8 @@ let pipe () =
       ok ()
     | `Writer_waiting ->
       raise (Failure "stream flush: the previous write has not completed")
-    | `Closed ->
-      close ()
+    | `Closed code ->
+      close code
   in
 
   let ping ~ok ~close =
@@ -316,8 +298,8 @@ let pipe () =
       ok ()
     | `Writer_waiting ->
       raise (Failure "stream ping: the previous write has not completed")
-    | `Closed ->
-      close ()
+    | `Closed code ->
+      close code
   in
 
   let pong ~ok ~close =
@@ -335,8 +317,8 @@ let pipe () =
       ok ()
     | `Writer_waiting ->
       raise (Failure "stream pong: the previous write has not completed")
-    | `Closed ->
-      close ()
+    | `Closed code ->
+      close code
   in
 
   {read; write; flush; close; ping; pong}
@@ -352,7 +334,7 @@ let read_convenience stream =
         |> Option.some
         |> Lwt.wakeup_later resolver)
 
-      ~close:(fun () ->
+      ~close:(fun _code ->
         Lwt.wakeup_later resolver None)
 
       ~flush:loop
@@ -360,7 +342,7 @@ let read_convenience stream =
       ~ping:(fun () ->
         stream.pong
           ~ok:loop
-          ~close:(fun () ->
+          ~close:(fun _code ->
             Lwt.wakeup_later resolver None))
 
       ~pong:loop
@@ -373,7 +355,7 @@ let read_until_close stream =
   let promise, resolver = Lwt.wait () in
   let length = ref 0 in
   let buffer = ref (Bigstringaf.create 4096) in
-  let close () =
+  let close _code =
     Bigstringaf.sub !buffer ~off:0 ~len:!length
     |> Bigstringaf.to_string
     |> Lwt.wakeup_later resolver
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 796ed6ca..5c01faa0 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -48,7 +48,7 @@ type stream
 
 type read =
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(unit -> unit) ->
+  close:(int -> unit) ->
   flush:(unit -> unit) ->
   ping:(unit -> unit) ->
   pong:(unit -> unit) ->
@@ -59,12 +59,12 @@ type read =
 
 type write =
   ok:(unit -> unit) ->
-  close:(unit -> unit) ->
+  close:(int -> unit) ->
     unit
 (** A writing function. Pushes an event into a stream. May take additional
     arguments before [~ok]. *)
 
-val read_only : read:read -> close:(unit -> unit) -> stream
+val read_only : read:read -> close:(int -> unit) -> stream
 (** Creates a read-only stream from the given reader. [~close] is called in
     response to {!Stream.close}. It doesn't need to call {!Stream.close} again
     on the stream. It should be used to free any underlying resources. *)
@@ -82,7 +82,7 @@ val pipe : unit -> stream
     writing functions. For example, calling {!Stream.flush} on a pipe will cause
     the reader to call its [~flush] callback. *)
 
-val duplex : read:stream -> write:stream -> close:(unit -> unit) -> stream
+val duplex : read:stream -> write:stream -> close:(int -> unit) -> stream
 (** A stream whose reading functions behave like [~read], and whose writing
     functions behave like [~write]. *)
 
@@ -92,11 +92,11 @@ val stream :
   flush:write ->
   ping:write ->
   pong:write ->
-  close:(unit -> unit) ->
+  close:(int -> unit) ->
     stream
 (** A general stream. *)
 
-val close : stream -> unit
+val close : stream -> int -> unit
 (** Closes the given stream. Causes a pending reader or writer to call its
     [~close] callback. *)
 
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index c30f0eed..34582ce9 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -14,8 +14,8 @@ let read_and_dump stream =
     ~data:(fun buffer offset length binary fin ->
       Printf.printf "read: data: BINARY=%b FIN=%b %s\n"
         binary fin (Bigstringaf.substring buffer ~off:offset ~len:length))
-    ~close:(fun () ->
-      print_endline "read: close")
+    ~close:(fun code ->
+      Printf.printf "read: close: CODE=%i\n" code)
     ~flush:(fun () ->
       print_endline "read: flush")
     ~ping:(fun () ->
@@ -27,29 +27,29 @@ let flush_and_dump stream =
   Stream.flush stream
     ~ok:(fun () ->
       print_endline "flush: ok")
-    ~close:(fun () ->
-      print_endline "flush: close")
+    ~close:(fun code ->
+      Printf.printf "flush: close: CODE=%i\n" code)
 
 let write_and_dump stream buffer offset length binary fin =
   Stream.write stream buffer offset length binary fin
     ~ok:(fun () ->
       print_endline "write: ok")
-    ~close:(fun () ->
-      print_endline "write: close")
+    ~close:(fun code ->
+      Printf.printf "write: close: CODE=%i\n" code)
 
 let ping_and_dump stream =
   Stream.ping stream
     ~ok:(fun () ->
       print_endline "ping: ok")
-    ~close:(fun () ->
-      print_endline "ping: close")
+    ~close:(fun code ->
+      Printf.printf "ping: close: CODE=%i\n" code)
 
 let pong_and_dump stream =
   Stream.pong stream
     ~ok:(fun () ->
       print_endline "pong: ok")
-    ~close:(fun () ->
-      print_endline "pong: close")
+    ~close:(fun code ->
+      Printf.printf "pong: close: CODE=%i\n" code)
 
 
 
@@ -59,45 +59,45 @@ let%expect_test _ =
   let stream = Stream.empty in
   read_and_dump stream;
   read_and_dump stream;
-  Stream.close stream;
+  Stream.close stream 1005;
   read_and_dump stream;
   [%expect {|
-    read: close
-    read: close
-    read: close |}]
+    read: close: CODE=1000
+    read: close: CODE=1000
+    read: close: CODE=1000 |}]
 
 let%expect_test _ =
   let stream = Stream.empty in
-  Stream.close stream;
+  Stream.close stream 1005;
   read_and_dump stream;
-  [%expect {| read: close |}]
+  [%expect {| read: close: CODE=1000 |}]
 
 let%expect_test _ =
   let stream = Stream.string "foo" in
   read_and_dump stream;
   read_and_dump stream;
   read_and_dump stream;
-  Stream.close stream;
+  Stream.close stream 1005;
   read_and_dump stream;
   [%expect {|
     read: data: BINARY=true FIN=true foo
-    read: close
-    read: close
-    read: close |}]
+    read: close: CODE=1000
+    read: close: CODE=1000
+    read: close: CODE=1000 |}]
 
 let%expect_test _ =
   let stream = Stream.string "" in
   read_and_dump stream;
   read_and_dump stream;
   [%expect {|
-    read: close
-    read: close |}]
+    read: close: CODE=1000
+    read: close: CODE=1000 |}]
 
 let%expect_test _ =
   let stream = Stream.string "foo" in
-  Stream.close stream;
+  Stream.close stream 1005;
   read_and_dump stream;
-  [%expect {| read: close |}]
+  [%expect {| read: close: CODE=1000 |}]
 
 let%expect_test _ =
   let stream = Stream.empty in
@@ -134,26 +134,26 @@ let%expect_test _ =
   let stream = Stream.pipe () in
   read_and_dump stream;
   print_endline "checkpoint 1";
-  Stream.close stream;
+  Stream.close stream 1005;
   print_endline "checkpoint 2";
   read_and_dump stream;
   print_endline "checkpoint 3";
-  Stream.close stream;
+  Stream.close stream 1000;
   [%expect {|
     checkpoint 1
-    read: close
+    read: close: CODE=1005
     checkpoint 2
-    read: close
+    read: close: CODE=1005
     checkpoint 3 |}]
 
 let%expect_test _ =
   let stream = Stream.pipe () in
-  Stream.close stream;
+  Stream.close stream 1005;
   read_and_dump stream;
   read_and_dump stream;
   [%expect {|
-    read: close
-    read: close |}]
+    read: close: CODE=1005
+    read: close: CODE=1005 |}]
 
 
 
@@ -261,11 +261,11 @@ let%expect_test _ =
 let%expect_test _ =
   let stream = Stream.pipe () in
   flush_and_dump stream;
-  Stream.close stream;
+  Stream.close stream 1005;
   flush_and_dump stream;
   [%expect {|
-    flush: close
-    flush: close |}]
+    flush: close: CODE=1005
+    flush: close: CODE=1005 |}]
 
 
 
@@ -274,11 +274,11 @@ let%expect_test _ =
 let%expect_test _ =
   let stream = Stream.pipe () in
   write_and_dump stream buffer 0 3 true true;
-  Stream.close stream;
+  Stream.close stream 1005;
   write_and_dump stream buffer 0 3 true false;
   [%expect {|
-    write: close
-    write: close |}]
+    write: close: CODE=1005
+    write: close: CODE=1005 |}]
 
 
 
@@ -287,11 +287,11 @@ let%expect_test _ =
 let%expect_test _ =
   let stream = Stream.pipe () in
   ping_and_dump stream;
-  Stream.close stream;
+  Stream.close stream 1005;
   ping_and_dump stream;
   [%expect {|
-    ping: close
-    ping: close |}]
+    ping: close: CODE=1005
+    ping: close: CODE=1005 |}]
 
 
 
@@ -300,8 +300,8 @@ let%expect_test _ =
 let%expect_test _ =
   let stream = Stream.pipe () in
   pong_and_dump stream;
-  Stream.close stream;
+  Stream.close stream 1005;
   pong_and_dump stream;
   [%expect {|
-    pong: close
-    pong: close |}]
+    pong: close: CODE=1005
+    pong: close: CODE=1005 |}]

From 587d55b92179772eda456b57e22280112e44dca3 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 19:05:40 +0300
Subject: [PATCH 038/312] Primitive HTTP write backpressure

Part of #27.
---
 example/w-stress-response/README.md          | 17 +++++++----------
 example/w-stress-response/stress_response.ml | 13 ++++++++-----
 src/http/adapt.ml                            | 12 ++++++++++--
 3 files changed, 25 insertions(+), 17 deletions(-)

diff --git a/example/w-stress-response/README.md b/example/w-stress-response/README.md
index c513ff24..14d57492 100644
--- a/example/w-stress-response/README.md
+++ b/example/w-stress-response/README.md
@@ -10,19 +10,16 @@ by default. To use,
 <b>$ npx esy start</b>
 <b>$ curl http://localhost:8080 > /dev/null &</b></code></pre>
 
-The `curl` command can be repeated for multiple concurrent clients.
+The `curl` command can be repeated for multiple concurrent clients, to check
+fairness or other effects.
 
-<br>
+The URL supports query parameters: `?mb=16384` sets the total number of
+megabytes to respond with (16 GB in this case), and `?chunk=128` changes the
+chunk size used during writing (128 KB in this case).
 
-Writing currently slows down for very large streams. This is likely due to the
-lack of server-side flow control for writers, which probably causes allocation
-of huge internal buffers, which first triggers needless GC, and eventually page
-thrashing at the virtual memory level.
-[#34](https://github.com/aantron/dream/issues/34) should address this in one of
-the early releases of Dream.
+<br>
 
-Nonetheless, for smaller streams, unoptimized Dream is able to peak out at
-about 8 Gbits/s, which is more than one curl client can handle (2 Gbits/s).
+Dream is currently able to peak out on my machine at about 10 Gbit/s.
 
 <br>
 
diff --git a/example/w-stress-response/stress_response.ml b/example/w-stress-response/stress_response.ml
index 4ea54f0b..553d22ed 100644
--- a/example/w-stress-response/stress_response.ml
+++ b/example/w-stress-response/stress_response.ml
@@ -1,8 +1,8 @@
-(* TODO Once concurrent writing is supported, send N concurrent streams and test
-   for fairness. *)
-(* TODO There seems to be some GC thrashing and even page thrashing or similar
-   with very large streams, probably due to buffer growth from a lack of
-   server-side flow control. *)
+let show_heap_size () =
+  Gc.((quick_stat ()).heap_words) * 8
+  |> float_of_int
+  |> fun bytes -> bytes /. 1024. /. 1024.
+  |> Dream.log "Heap size: %.0f MB"
 
 let stress ?(megabytes = 1024) ?(chunk = 64) response =
   let limit = megabytes * 1024 * 1024 in
@@ -28,6 +28,7 @@ let stress ?(megabytes = 1024) ?(chunk = 64) response =
 
   Dream.log "%.0f MB/s over %.1f s"
     ((float_of_int megabytes) /. elapsed) elapsed;
+  show_heap_size ();
 
   Lwt.return_unit
 
@@ -35,6 +36,8 @@ let query_int name request =
   Dream.query name request |> Option.map int_of_string
 
 let () =
+  show_heap_size ();
+
   Dream.run
   @@ Dream.logger
   @@ Dream.router [
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index a3d13809..4624b544 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -19,7 +19,6 @@ let address_to_string : Unix.sockaddr -> string = function
 
 (* TODO Write a test simulating client exit during SSE; this was killing the
    server at some point. *)
-(* TODO LATER Will also need to monitor buffer accumulation and use flush. *)
 let forward_body_general
     (response : Dream.response)
     (_write_string : ?off:int -> ?len:int -> string -> unit)
@@ -27,6 +26,8 @@ let forward_body_general
     http_flush
     close =
 
+  let bytes_since_flush = ref 0 in
+
   let rec send () =
     Dream.body_stream response
     |> fun stream ->
@@ -40,9 +41,16 @@ let forward_body_general
 
   and data chunk off len _binary _fin =
     write_buffer ~off ~len chunk;
-    send ()
+    bytes_since_flush := !bytes_since_flush + len;
+    if !bytes_since_flush >= 4096 then begin
+      bytes_since_flush := 0;
+      http_flush send
+    end
+    else
+      send ()
 
   and flush () =
+    bytes_since_flush := 0;
     http_flush send
 
   and ping () =

From 08fd6d0f642affb61b46d3bae02b3f16e8befa55 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 19:47:00 +0300
Subject: [PATCH 039/312] Primitive WebSocket send backpressure

Fixes #27.
---
 example/w-stress-websocket-send/README.md     | 11 ++-------
 .../stress_websocket_send.eml.ml              |  9 ++++++++
 src/http/http.ml                              | 23 ++++++++++++-------
 3 files changed, 26 insertions(+), 17 deletions(-)

diff --git a/example/w-stress-websocket-send/README.md b/example/w-stress-websocket-send/README.md
index a0188eb7..334f44a8 100644
--- a/example/w-stress-websocket-send/README.md
+++ b/example/w-stress-websocket-send/README.md
@@ -5,15 +5,8 @@
 This example serves a client which opens four WebSockets. The server then floods
 each WebSocket with 1 GB of data in 64 KB one-frame messages.
 
-At the moment, the naive and unoptimized Dream massively outpaces Chrome. Dream
-sends the 4 GB in about 8 seconds, at a resulting speed of about 4 Gbits/s.
-Chrome appears to receive all the messages, but the JavaScript engine processes
-them in about 10 minutes (55 Mbit/s), causing massive buffering in Chrome.
-
-This test should be improved after flow control is added internally to Dream's
-writers in [#34](https://github.com/aantron/dream/issues/34). It should probably
-be run with multiple separate client tabs or processes, rather than one
-JavaScript context.
+At the moment, Dream greatly outpaces Chrome, which appears to limit WebSocket
+traffic to 64 MB/s per tab.
 
 <br>
 
diff --git a/example/w-stress-websocket-send/stress_websocket_send.eml.ml b/example/w-stress-websocket-send/stress_websocket_send.eml.ml
index 7a7c33ca..e9a89ca9 100644
--- a/example/w-stress-websocket-send/stress_websocket_send.eml.ml
+++ b/example/w-stress-websocket-send/stress_websocket_send.eml.ml
@@ -26,6 +26,12 @@ let home =
     </body>
   </html>
 
+let show_heap_size () =
+  Gc.((quick_stat ()).heap_words) * 8
+  |> float_of_int
+  |> fun bytes -> bytes /. 1024. /. 1024.
+  |> Dream.log "Heap size: %.0f MB"
+
 let frame = 64 * 1024
 
 let frame_a = String.make frame 'a'
@@ -48,10 +54,13 @@ let stress websocket =
 
   Dream.log "%.0f MB/s over %.1f s"
     ((float_of_int limit) /. elapsed /. 1024. /. 1024.) elapsed;
+  show_heap_size ();
 
   Lwt.return_unit
 
 let () =
+  show_heap_size ();
+
   Dream.run
   @@ Dream.logger
   @@ Dream.router [
diff --git a/src/http/http.ml b/src/http/http.ml
index fef48307..c4fd3e02 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -117,23 +117,30 @@ let websocket_handler user's_websocket_handler socket =
               data last_buffer last_offset last_length binary fin)
   in
 
+  let bytes_since_flush = ref 0 in
+
+  let flush ~ok ~close =
+    bytes_since_flush := 0;
+    if !closed then
+      close 1000
+    else
+      Websocketaf.Wsd.flushed socket ok
+  in
+
   let write buffer offset length binary _fin ~ok ~close =
     let kind = if binary then `Binary else `Text in
     if !closed then
       close 1000
     else begin
       Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
-      ok ()
+      bytes_since_flush := !bytes_since_flush + length;
+      if !bytes_since_flush >= 4096 then
+        flush ~ok ~close
+      else
+        ok ()
     end
   in
 
-  let flush ~ok ~close =
-    if !closed then
-      close 1000
-    else
-      Websocketaf.Wsd.flushed socket ok
-  in
-
   let ping ~ok ~close =
     if !closed then
       close 1000

From c7e37548da95d309e6c4a16464199b54da3b44db Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 27 Nov 2021 20:35:46 +0300
Subject: [PATCH 040/312] dream.ml: remove obsolete internal module

---
 src/dream.ml | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index 14058753..696b5cce 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -5,12 +5,6 @@
 
 
 
-module Method_and_status =
-struct
-  include Dream__pure.Method
-  include Dream__pure.Status
-end
-
 include Dream__pure.Stream
 include Dream__pure.Inmost
 

From b5c0e774501911196f201fde107b4b672ba3bc3e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 28 Nov 2021 22:03:31 +0300
Subject: [PATCH 041/312] Streams: document design decision about FIN bit

---
 src/pure/stream.mli | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 5c01faa0..908ebc8c 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -116,7 +116,18 @@ val write : stream -> buffer -> int -> int -> bool -> bool -> write
 (** A writing function that sends a data buffer on the given stream. No more
     writing functions should be called on the stream until this function calls
     [~ok]. The [bool] arguments are whether the message is binary and whether
-    the [FIN] flag should be set. They are ignored by non-WebSocket streams. *)
+    the [FIN] flag should be set. They are ignored by non-WebSocket streams.
+
+    Note: [FIN] is provided as part of the write call, rather than being a
+    separate stream event (like [flush]), because the WebSocket writer needs to
+    immediately know when the last chunk of the last frame in a message is
+    provided, to transmit the [FIN] bit. If [FIN] were to be provided as a
+    separate event, the WebSocket writer would have to buffer each one chunk, in
+    case the next stream event was [FIN], in order to be able to decide whether
+    to set the [FIN] bit or not. This is awkward and inefficient, as it
+    introduces an unnecessary delay into the writer, as if the next event is not
+    [FIN], the next data chunk might take an arbitrary amount of time to be
+    generated by the writing user code. *)
 
 val flush : stream -> write
 (** A writing function that asks for the given stream to be flushed. The meaning

From 639d59dad1ecff2367d3529441c026f01e9627e0 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 29 Nov 2021 08:54:40 +0300
Subject: [PATCH 042/312] WebSocket: tweak binary flag

---
 src/http/http.ml | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index c4fd3e02..f88fd7c2 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -38,7 +38,7 @@ let websocket_handler user's_websocket_handler socket =
      backpressure with the current API of websocket/af, so that will have to be
      added later. The user-facing API of Dream does support backpressure. *)
   let frames, push_frame = Lwt_stream.create () in
-  let message_is_binary = ref true in
+  let message_is_binary = ref `Binary in
 
   (* Frame reader called by websocket/af on each frame received. There is no
      good way to truly throttle this, hence this frame reader pushes frame
@@ -55,11 +55,11 @@ let websocket_handler user's_websocket_handler socket =
     | `Other _ ->
       () (* TODO Log? *)
     | `Text ->
-      message_is_binary := false;
-      push_frame (Some (`Data (payload, false, is_fin)))
+      message_is_binary := `Text;
+      push_frame (Some (`Data (payload, `Text, is_fin)))
     | `Binary ->
-      message_is_binary := true;
-      push_frame (Some (`Data (payload, true, is_fin)))
+      message_is_binary := `Binary;
+      push_frame (Some (`Data (payload, `Binary, is_fin)))
     | `Continuation ->
       push_frame (Some (`Data (payload, !message_is_binary, is_fin)))
   in
@@ -106,6 +106,7 @@ let websocket_handler user's_websocket_handler socket =
               read ~data ~close ~flush ~ping ~pong
             | Some (last_buffer, last_offset, last_length) ->
               last_chunk := Some (buffer, off, len);
+              let binary = binary = `Binary in
               data last_buffer last_offset last_length binary false)
           ~on_eof:(fun () ->
             current_payload := None;
@@ -114,6 +115,7 @@ let websocket_handler user's_websocket_handler socket =
               read ~data ~close ~flush ~ping ~pong
             | Some (last_buffer, last_offset, last_length) ->
               last_chunk := None;
+              let binary = binary = `Binary in
               data last_buffer last_offset last_length binary fin)
   in
 

From 0613640568ea5bb9ffdcd46cf3a19d4ad3f122b3 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 29 Nov 2021 09:14:50 +0300
Subject: [PATCH 043/312] WebSocket: drain all payloads

---
 src/http/http.ml | 64 +++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 52 insertions(+), 12 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index f88fd7c2..dbe78f60 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -47,21 +47,22 @@ let websocket_handler user's_websocket_handler socket =
     match opcode with
     | `Connection_close ->
       Websocketaf.Wsd.close socket;
-      push_frame None;
+      push_frame (Some (`Close, payload))
     | `Ping ->
-      push_frame (Some `Ping)
+      push_frame (Some (`Ping, payload))
     | `Pong ->
-      push_frame (Some `Pong)
+      push_frame (Some (`Pong, payload))
     | `Other _ ->
-      () (* TODO Log? *)
+      (* TODO Log? *)
+      push_frame (Some (`Other, payload))
     | `Text ->
       message_is_binary := `Text;
-      push_frame (Some (`Data (payload, `Text, is_fin)))
+      push_frame (Some (`Data (`Text, is_fin), payload))
     | `Binary ->
       message_is_binary := `Binary;
-      push_frame (Some (`Data (payload, `Binary, is_fin)))
+      push_frame (Some (`Data (`Binary, is_fin), payload))
     | `Continuation ->
-      push_frame (Some (`Data (payload, !message_is_binary, is_fin)))
+      push_frame (Some (`Data (!message_is_binary, is_fin), payload))
   in
 
   let eof () =
@@ -75,6 +76,37 @@ let websocket_handler user's_websocket_handler socket =
   let closed = ref false in
   let current_payload = ref None in
   let last_chunk = ref None in
+  (* TODO Review per-chunk allocations, including current_payload contents. *)
+
+  (* For control frames, the payload can be at most 125 bytes long. We assume
+     that the first chunk will contain the whole payload, and discard any other
+     chunks that may be reported by websocket/af. *)
+  let first_chunk_received = ref false in
+  let first_chunk = ref Bigstringaf.empty in
+  let first_chunk_offset = ref 0 in
+  let first_chunk_length = ref 0 in
+  let rec drain_payload payload continuation =
+    Websocketaf.Payload.schedule_read
+      payload
+      ~on_read:(fun buffer ~off ~len ->
+        if not !first_chunk_received then begin
+          first_chunk := buffer;
+          first_chunk_offset := off;
+          first_chunk_length := len;
+          first_chunk_received := true
+        end;
+        (* TODO Warn about receiving additional chunks. *)
+        drain_payload payload continuation)
+      ~on_eof:(fun () ->
+        let payload = !first_chunk in
+        let offset = !first_chunk_offset in
+        let length = !first_chunk_length in
+        first_chunk_received := false;
+        first_chunk := Bigstringaf.empty;
+        first_chunk_offset := 0;
+        first_chunk_length := 0;
+        continuation payload offset length)
+  in
 
   (* TODO Can this be canceled by a user's close? i.e. will that eventually
      cause a call to eof above? *)
@@ -88,15 +120,23 @@ let websocket_handler user's_websocket_handler socket =
         | None ->
           closed := true;
           close 1000
-        | Some `Ping ->
+        | Some (`Close, payload) ->
+          drain_payload payload @@ fun _buffer _offset _length ->
+          close 1000
+        | Some (`Ping, payload) ->
+          drain_payload payload @@ fun _buffer _offset _length ->
           ping ()
-        | Some `Pong ->
+        | Some (`Pong, payload) ->
+          drain_payload payload @@ fun _buffer _offset _length ->
           pong ()
-        | Some (`Data payload) ->
-          current_payload := Some payload;
+        | Some (`Other, payload) ->
+          drain_payload payload @@ fun _buffer _offset _length ->
+          read ~data ~close ~flush ~ping ~pong
+        | Some (`Data properties, payload) ->
+          current_payload := Some (properties, payload);
           read ~data ~close ~flush ~ping ~pong
         end
-      | Some (payload, binary, fin) ->
+      | Some ((binary, fin), payload) ->
         Websocketaf.Payload.schedule_read
           payload
           ~on_read:(fun buffer ~off ~len ->

From d21ca95501539bc6ff69bcee84f5fc523d2f0478 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 29 Nov 2021 09:38:52 +0300
Subject: [PATCH 044/312] WebSocket: read close codes

---
 src/http/http.ml | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index dbe78f60..d815d39c 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -119,10 +119,15 @@ let websocket_handler user's_websocket_handler socket =
         Lwt.on_success (Lwt_stream.get frames) begin function
         | None ->
           closed := true;
-          close 1000
+          close 1005
         | Some (`Close, payload) ->
-          drain_payload payload @@ fun _buffer _offset _length ->
-          close 1000
+          drain_payload payload @@ fun buffer offset length ->
+          if length < 2 then
+            close 1005
+          else
+            let high_byte = Char.code buffer.{offset}
+            and low_byte = Char.code buffer.{offset + 1} in
+            close (high_byte lsl 8 lor low_byte)
         | Some (`Ping, payload) ->
           drain_payload payload @@ fun _buffer _offset _length ->
           ping ()

From 873c0484290d774800d2287e4caabda08c3cf5b5 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 29 Nov 2021 11:00:50 +0300
Subject: [PATCH 045/312] WebSocket: expose ping/pong payloads

It's not possible to send them at the moment, due to

  https://github.com/anmonteiro/websocketaf/issues/36

However, this change should be made now to future-proof the Dream API.
---
 src/dream.mli                     |  4 +-
 src/http/adapt.ml                 |  4 +-
 src/http/http.ml                  | 14 ++++---
 src/pure/stream.ml                | 68 ++++++++++++++++++-------------
 src/pure/stream.mli               | 12 +++---
 test/expect/pure/stream/stream.ml | 56 +++++++++++++------------
 6 files changed, 88 insertions(+), 70 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index e87f33b0..d4847296 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -735,8 +735,8 @@ val next :
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
   close:(int -> unit) ->
   flush:(unit -> unit) ->
-  ping:(unit -> unit) ->
-  pong:(unit -> unit) ->
+  ping:(buffer -> int -> int -> unit) ->
+  pong:(buffer -> int -> int -> unit) ->
     unit
 (** Waits for the next stream event, and calls:
 
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index 4624b544..372d5860 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -53,10 +53,10 @@ let forward_body_general
     bytes_since_flush := 0;
     http_flush send
 
-  and ping () =
+  and ping _buffer _offset _length =
     send ()
 
-  and pong () =
+  and pong _buffer _offset _length =
     send ()
 
   in
diff --git a/src/http/http.ml b/src/http/http.ml
index d815d39c..4d0b722f 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -129,11 +129,11 @@ let websocket_handler user's_websocket_handler socket =
             and low_byte = Char.code buffer.{offset + 1} in
             close (high_byte lsl 8 lor low_byte)
         | Some (`Ping, payload) ->
-          drain_payload payload @@ fun _buffer _offset _length ->
-          ping ()
+          drain_payload payload @@
+          ping
         | Some (`Pong, payload) ->
-          drain_payload payload @@ fun _buffer _offset _length ->
-          pong ()
+          drain_payload payload @@
+          pong
         | Some (`Other, payload) ->
           drain_payload payload @@ fun _buffer _offset _length ->
           read ~data ~close ~flush ~ping ~pong
@@ -188,7 +188,9 @@ let websocket_handler user's_websocket_handler socket =
     end
   in
 
-  let ping ~ok ~close =
+  (* TODO Log if the length is non-zero, as current websocket/af offers no way
+     to send the user data. Also log if the length is greater than 125. *)
+  let ping _buffer _offset _length ~ok ~close =
     if !closed then
       close 1000
     else begin
@@ -197,7 +199,7 @@ let websocket_handler user's_websocket_handler socket =
     end
   in
 
-  let pong ~ok ~close =
+  let pong _buffer _offset _length ~ok ~close =
     if !closed then
       close 1000
     else begin
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 97c7afa6..ca382252 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -15,8 +15,8 @@ type read =
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
   close:(int -> unit) ->
   flush:(unit -> unit) ->
-  ping:(unit -> unit) ->
-  pong:(unit -> unit) ->
+  ping:(buffer -> int -> int -> unit) ->
+  pong:(buffer -> int -> int -> unit) ->
     unit
 
 type write =
@@ -28,8 +28,8 @@ type stream = {
   read : read;
   write : buffer -> int -> int -> bool -> bool -> write;
   flush : write;
-  ping : write;
-  pong : write;
+  ping : buffer -> int -> int -> write;
+  pong : buffer -> int -> int -> write;
   close : int -> unit;
 }
 
@@ -53,10 +53,10 @@ let read_only ~read ~close =
       (fun ~ok:_ ~close:_ ->
         raise (Failure "flush of a read-only stream"));
     ping =
-      (fun ~ok:_ ~close:_ ->
+      (fun _buffer _offset _length ~ok:_ ~close:_ ->
         raise (Failure "ping on a read-only stream"));
     pong =
-      (fun ~ok:_ ~close:_ ->
+      (fun _buffer _offset _length ~ok:_ ~close:_ ->
         raise (Failure "pong on a read-only stream"));
     close;
   }
@@ -87,7 +87,7 @@ let string the_string =
         close 1000
     in
 
-    let close _ =
+    let close _code =
       string_ref := None;
     in
 
@@ -116,11 +116,11 @@ let write stream buffer offset length binary fin ~ok ~close =
 let flush stream ~ok ~close =
   stream.flush ~ok ~close
 
-let ping stream ~ok ~close =
-  stream.ping ~ok ~close
+let ping stream buffer offset length ~ok ~close =
+  stream.ping buffer offset length ~ok ~close
 
-let pong stream ~ok ~close =
-  stream.pong ~ok ~close
+let pong stream buffer offset length ~ok ~close =
+  stream.pong buffer offset length ~ok ~close
 
 type pipe = {
   mutable state : [
@@ -133,8 +133,8 @@ type pipe = {
   mutable read_data_callback : buffer -> int -> int -> bool -> bool -> unit;
   mutable read_close_callback : int -> unit;
   mutable read_flush_callback : unit -> unit;
-  mutable read_ping_callback : unit -> unit;
-  mutable read_pong_callback : unit -> unit;
+  mutable read_ping_callback : buffer -> int -> int -> unit;
+  mutable read_pong_callback : buffer -> int -> int -> unit;
 
   mutable write_kind : [
     | `Data
@@ -157,12 +157,15 @@ let dummy_buffer =
 let dummy_read_data_callback _buffer _offset _length _binary _fin =
   () [@coverage off]
 
+let dummy_ping_pong_callback _buffer _offset _length =
+  () [@coverage off]
+
 let clean_up_reader_fields pipe =
   pipe.read_data_callback <- dummy_read_data_callback;
   pipe.read_close_callback <- ignore;
   pipe.read_flush_callback <- ignore;
-  pipe.read_ping_callback <- ignore;
-  pipe.read_pong_callback <- ignore
+  pipe.read_ping_callback <- dummy_ping_pong_callback;
+  pipe.read_pong_callback <- dummy_ping_pong_callback
 
 let clean_up_writer_fields pipe =
   pipe.write_buffer <- dummy_buffer;
@@ -176,8 +179,8 @@ let pipe () =
     read_data_callback = dummy_read_data_callback;
     read_close_callback = ignore;
     read_flush_callback = ignore;
-    read_ping_callback = ignore;
-    read_pong_callback = ignore;
+    read_ping_callback = dummy_ping_pong_callback;
+    read_pong_callback = dummy_ping_pong_callback;
 
     write_kind = `Data;
     write_buffer = dummy_buffer;
@@ -214,8 +217,8 @@ let pipe () =
           internal.write_binary
           internal.write_fin
       | `Flush -> flush ()
-      | `Ping -> ping ()
-      | `Pong -> pong ()
+      | `Ping -> ping buffer internal.write_offset internal.write_length
+      | `Pong -> pong buffer internal.write_offset internal.write_length
       end;
       write_ok_callback ()
     | `Closed code ->
@@ -283,18 +286,21 @@ let pipe () =
       close code
   in
 
-  let ping ~ok ~close =
+  let ping buffer offset length ~ok ~close =
     match internal.state with
     | `Idle ->
       internal.state <- `Writer_waiting;
       internal.write_kind <- `Ping;
+      internal.write_buffer <- buffer;
+      internal.write_offset <- offset;
+      internal.write_length <- length;
       internal.write_ok_callback <- ok;
       internal.write_close_callback <- close
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_ping_callback = internal.read_ping_callback in
       clean_up_reader_fields internal;
-      read_ping_callback ();
+      read_ping_callback buffer offset length;
       ok ()
     | `Writer_waiting ->
       raise (Failure "stream ping: the previous write has not completed")
@@ -302,18 +308,21 @@ let pipe () =
       close code
   in
 
-  let pong ~ok ~close =
+  let pong buffer offset length ~ok ~close =
     match internal.state with
     | `Idle ->
       internal.state <- `Writer_waiting;
       internal.write_kind <- `Pong;
+      internal.write_buffer <- buffer;
+      internal.write_offset <- offset;
+      internal.write_length <- length;
       internal.write_ok_callback <- ok;
       internal.write_close_callback <- close
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_pong_callback = internal.read_pong_callback in
       clean_up_reader_fields internal;
-      read_pong_callback ();
+      read_pong_callback buffer offset length;
       ok ()
     | `Writer_waiting ->
       raise (Failure "stream pong: the previous write has not completed")
@@ -339,13 +348,15 @@ let read_convenience stream =
 
       ~flush:loop
 
-      ~ping:(fun () ->
+      ~ping:(fun buffer offset length ->
         stream.pong
+          buffer offset length
           ~ok:loop
           ~close:(fun _code ->
             Lwt.wakeup_later resolver None))
 
-      ~pong:loop
+      ~pong:(fun _buffer _offset _length ->
+        ())
   in
   loop ();
 
@@ -383,10 +394,11 @@ let read_until_close stream =
 
       ~flush:loop
 
-      ~ping:(fun () ->
-        stream.pong ~ok:loop ~close)
+      ~ping:(fun buffer offset length ->
+        stream.pong buffer offset length ~ok:loop ~close)
 
-      ~pong:loop
+      ~pong:(fun _buffer _offset _length ->
+        ())
   in
   loop ();
 
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 908ebc8c..e89165e8 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -50,8 +50,8 @@ type read =
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
   close:(int -> unit) ->
   flush:(unit -> unit) ->
-  ping:(unit -> unit) ->
-  pong:(unit -> unit) ->
+  ping:(buffer -> int -> int -> unit) ->
+  pong:(buffer -> int -> int -> unit) ->
     unit
 (** A reading function. Awaits the next event on the stream. For each call of a
     reading function, one of the callbacks will eventually be called, according
@@ -90,8 +90,8 @@ val stream :
   read:read ->
   write:(buffer -> int -> int -> bool -> bool -> write) ->
   flush:write ->
-  ping:write ->
-  pong:write ->
+  ping:(buffer -> int -> int -> write) ->
+  pong:(buffer -> int -> int -> write) ->
   close:(int -> unit) ->
     stream
 (** A general stream. *)
@@ -134,10 +134,10 @@ val flush : stream -> write
     of flushing depends on the implementation of the stream. No more writing
     functions should be called on the stream until this function calls [~ok]. *)
 
-val ping : stream -> write
+val ping : stream -> buffer -> int -> int -> write
 (** A writing function that sends a ping event on the given stream. This is only
     meaningful for WebSockets. *)
 
-val pong : stream -> write
+val pong : stream -> buffer -> int -> int -> write
 (** A writing function that sends a pong event on the given stream. This is only
     meaningful for WebSockets. *)
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 34582ce9..0d042864 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -18,10 +18,12 @@ let read_and_dump stream =
       Printf.printf "read: close: CODE=%i\n" code)
     ~flush:(fun () ->
       print_endline "read: flush")
-    ~ping:(fun () ->
-      print_endline "read: ping")
-    ~pong:(fun () ->
-      print_endline "read: pong")
+    ~ping:(fun buffer offset length ->
+      Printf.printf "read: ping: %s\n"
+        (Bigstringaf.substring buffer ~off:offset ~len:length))
+    ~pong:(fun buffer offset length ->
+      Printf.printf "read: pong: %s\n"
+        (Bigstringaf.substring buffer ~off:offset ~len:length))
 
 let flush_and_dump stream =
   Stream.flush stream
@@ -37,15 +39,17 @@ let write_and_dump stream buffer offset length binary fin =
     ~close:(fun code ->
       Printf.printf "write: close: CODE=%i\n" code)
 
-let ping_and_dump stream =
-  Stream.ping stream
+let ping_and_dump payload stream =
+  let length = String.length payload in
+  Stream.ping stream (Bigstringaf.of_string ~off:0 ~len:length payload) 0 length
     ~ok:(fun () ->
       print_endline "ping: ok")
     ~close:(fun code ->
       Printf.printf "ping: close: CODE=%i\n" code)
 
-let pong_and_dump stream =
-  Stream.pong stream
+let pong_and_dump payload stream =
+  let length = String.length payload in
+  Stream.pong stream (Bigstringaf.of_string ~off:0 ~len:length payload) 0 length
     ~ok:(fun () ->
       print_endline "pong: ok")
     ~close:(fun code ->
@@ -105,9 +109,9 @@ let%expect_test _ =
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
   (try flush_and_dump stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
-  (try ping_and_dump stream
+  (try ping_and_dump "foo" stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
-  (try pong_and_dump stream
+  (try pong_and_dump "bar" stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
   [%expect {|
     (Failure "write to a read-only stream")
@@ -214,19 +218,19 @@ let%expect_test _ =
   let stream = Stream.pipe () in
   read_and_dump stream;
   print_endline "checkpoint 1";
-  ping_and_dump stream;
-  ping_and_dump stream;
+  ping_and_dump "foo" stream;
+  ping_and_dump "bar" stream;
   print_endline "checkpoint 2";
   read_and_dump stream;
-  ping_and_dump stream;
-  try ping_and_dump stream
+  ping_and_dump "baz" stream;
+  try ping_and_dump "quux" stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
-    read: ping
+    read: ping: foo
     ping: ok
     checkpoint 2
-    read: ping
+    read: ping: bar
     ping: ok
     (Failure "stream ping: the previous write has not completed") |}]
 
@@ -238,19 +242,19 @@ let%expect_test _ =
   let stream = Stream.pipe () in
   read_and_dump stream;
   print_endline "checkpoint 1";
-  pong_and_dump stream;
-  pong_and_dump stream;
+  pong_and_dump "foo" stream;
+  pong_and_dump "bar" stream;
   print_endline "checkpoint 2";
   read_and_dump stream;
-  pong_and_dump stream;
-  try pong_and_dump stream
+  pong_and_dump "baz" stream;
+  try pong_and_dump "quux" stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
-    read: pong
+    read: pong: foo
     pong: ok
     checkpoint 2
-    read: pong
+    read: pong: bar
     pong: ok
     (Failure "stream pong: the previous write has not completed") |}]
 
@@ -286,9 +290,9 @@ let%expect_test _ =
 
 let%expect_test _ =
   let stream = Stream.pipe () in
-  ping_and_dump stream;
+  ping_and_dump "foo" stream;
   Stream.close stream 1005;
-  ping_and_dump stream;
+  ping_and_dump "bar" stream;
   [%expect {|
     ping: close: CODE=1005
     ping: close: CODE=1005 |}]
@@ -299,9 +303,9 @@ let%expect_test _ =
 
 let%expect_test _ =
   let stream = Stream.pipe () in
-  pong_and_dump stream;
+  pong_and_dump "foo" stream;
   Stream.close stream 1005;
-  pong_and_dump stream;
+  pong_and_dump "bar" stream;
   [%expect {|
     pong: close: CODE=1005
     pong: close: CODE=1005 |}]

From f1cec7222fc5bfc9259d57a0f3e25c1f23a9233d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 29 Nov 2021 12:04:17 +0300
Subject: [PATCH 046/312] WebSocket: better close handshake handling

---
 src/http/http.ml | 47 ++++++++++++++++++++++++++++-------------------
 1 file changed, 28 insertions(+), 19 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index 4d0b722f..b26b0279 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -46,7 +46,6 @@ let websocket_handler user's_websocket_handler socket =
   let frame ~opcode ~is_fin ~len:_ payload =
     match opcode with
     | `Connection_close ->
-      Websocketaf.Wsd.close socket;
       push_frame (Some (`Close, payload))
     | `Ping ->
       push_frame (Some (`Ping, payload))
@@ -66,14 +65,13 @@ let websocket_handler user's_websocket_handler socket =
   in
 
   let eof () =
-    Websocketaf.Wsd.close socket;
-    push_frame None
-  in
+    push_frame None in
 
   (* The reader retrieves the next frame. If it is a data frame, it keeps a
      reference to the payload across multiple reader calls, until the payload is
      exhausted. *)
   let closed = ref false in
+  let close_code = ref 1005 in
   let current_payload = ref None in
   let last_chunk = ref None in
   (* TODO Review per-chunk allocations, including current_payload contents. *)
@@ -112,22 +110,31 @@ let websocket_handler user's_websocket_handler socket =
      cause a call to eof above? *)
   let rec read ~data ~close ~flush ~ping ~pong =
     if !closed then
-      close 1000
+      close !close_code
     else
       match !current_payload with
       | None ->
         Lwt.on_success (Lwt_stream.get frames) begin function
         | None ->
-          closed := true;
-          close 1005
+          if not !closed then begin
+            closed := true;
+            close_code := 1005
+          end;
+          Websocketaf.Wsd.close socket;
+          close !close_code
         | Some (`Close, payload) ->
           drain_payload payload @@ fun buffer offset length ->
-          if length < 2 then
-            close 1005
-          else
-            let high_byte = Char.code buffer.{offset}
-            and low_byte = Char.code buffer.{offset + 1} in
-            close (high_byte lsl 8 lor low_byte)
+          let code =
+            if length < 2 then
+              1005
+            else
+              let high_byte = Char.code buffer.{offset}
+              and low_byte = Char.code buffer.{offset + 1} in
+              high_byte lsl 8 lor low_byte
+          in
+          if not !closed then
+            close_code := code;
+          close !close_code
         | Some (`Ping, payload) ->
           drain_payload payload @@
           ping
@@ -169,7 +176,7 @@ let websocket_handler user's_websocket_handler socket =
   let flush ~ok ~close =
     bytes_since_flush := 0;
     if !closed then
-      close 1000
+      close !close_code
     else
       Websocketaf.Wsd.flushed socket ok
   in
@@ -177,7 +184,7 @@ let websocket_handler user's_websocket_handler socket =
   let write buffer offset length binary _fin ~ok ~close =
     let kind = if binary then `Binary else `Text in
     if !closed then
-      close 1000
+      close !close_code
     else begin
       Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
       bytes_since_flush := !bytes_since_flush + length;
@@ -192,7 +199,7 @@ let websocket_handler user's_websocket_handler socket =
      to send the user data. Also log if the length is greater than 125. *)
   let ping _buffer _offset _length ~ok ~close =
     if !closed then
-      close 1000
+      close !close_code
     else begin
       Websocketaf.Wsd.send_ping socket;
       ok ()
@@ -201,7 +208,7 @@ let websocket_handler user's_websocket_handler socket =
 
   let pong _buffer _offset _length ~ok ~close =
     if !closed then
-      close 1000
+      close !close_code
     else begin
       Websocketaf.Wsd.send_pong socket;
       ok ()
@@ -209,8 +216,10 @@ let websocket_handler user's_websocket_handler socket =
   in
 
   let close code =
-    closed := true;
-    Websocketaf.Wsd.close ~code:(`Other code) socket
+    if not !closed then begin
+      closed := true;
+      Websocketaf.Wsd.close ~code:(`Other code) socket
+    end
   in
 
   let websocket =

From bf710df1bc8dead6280244926f57fee52da2d794 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 29 Nov 2021 12:26:25 +0300
Subject: [PATCH 047/312] WebSocket: a bit of logging and internal docs

---
 src/http/http.ml | 51 +++++++++++++++++++++++++++++++++++-------------
 1 file changed, 37 insertions(+), 14 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index b26b0279..f5332eac 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -23,15 +23,14 @@ let to_httpaf_status status =
 let to_h2_status status =
   Dream.status_to_int status |> H2.Status.of_code
 
-(* TODO Contact upstream: this is from websocketaf/lwt/websocketaf_lwt.ml, but
-   it is not exposed. *)
 let sha1 s =
   s
   |> Digestif.SHA1.digest_string
   |> Digestif.SHA1.to_raw_string
 
-(* TODO It appears that backpressure is impossible in the underlying
-   implementation... *)
+let websocket_log =
+  Dream__middleware.Log.sub_log "dream.websocket"
+
 let websocket_handler user's_websocket_handler socket =
 
   (* Queue of received frames. There doesn't appear to be a nice way to achieve
@@ -42,7 +41,8 @@ let websocket_handler user's_websocket_handler socket =
 
   (* Frame reader called by websocket/af on each frame received. There is no
      good way to truly throttle this, hence this frame reader pushes frame
-     objects into the above frame queue for the reader to take from later. *)
+     objects into the above frame queue for the reader to take from later. See
+     https://github.com/anmonteiro/websocketaf/issues/34. *)
   let frame ~opcode ~is_fin ~len:_ payload =
     match opcode with
     | `Connection_close ->
@@ -52,7 +52,6 @@ let websocket_handler user's_websocket_handler socket =
     | `Pong ->
       push_frame (Some (`Pong, payload))
     | `Other _ ->
-      (* TODO Log? *)
       push_frame (Some (`Other, payload))
     | `Text ->
       message_is_binary := `Text;
@@ -73,6 +72,10 @@ let websocket_handler user's_websocket_handler socket =
   let closed = ref false in
   let close_code = ref 1005 in
   let current_payload = ref None in
+
+  (* Used to convert the separate on_eof payload reading callback into a FIN bit
+     on the last chunk read. See
+     https://github.com/anmonteiro/websocketaf/issues/35. *)
   let last_chunk = ref None in
   (* TODO Review per-chunk allocations, including current_payload contents. *)
 
@@ -92,8 +95,10 @@ let websocket_handler user's_websocket_handler socket =
           first_chunk_offset := off;
           first_chunk_length := len;
           first_chunk_received := true
-        end;
-        (* TODO Warn about receiving additional chunks. *)
+        end
+        else
+          websocket_log.warning (fun log ->
+            log "Received fragmented control frame");
         drain_payload payload continuation)
       ~on_eof:(fun () ->
         let payload = !first_chunk in
@@ -142,7 +147,9 @@ let websocket_handler user's_websocket_handler socket =
           drain_payload payload @@
           pong
         | Some (`Other, payload) ->
-          drain_payload payload @@ fun _buffer _offset _length ->
+          drain_payload payload @@ fun _buffer _offset length ->
+          websocket_log.warning (fun log ->
+            log "Unknown frame type with length %i" length);
           read ~data ~close ~flush ~ping ~pong
         | Some (`Data properties, payload) ->
           current_payload := Some (properties, payload);
@@ -181,7 +188,11 @@ let websocket_handler user's_websocket_handler socket =
       Websocketaf.Wsd.flushed socket ok
   in
 
-  let write buffer offset length binary _fin ~ok ~close =
+  let write buffer offset length binary fin ~ok ~close =
+    (* Until https://github.com/anmonteiro/websocketaf/issues/33. *)
+    if not fin then
+      websocket_log.error (fun log ->
+        log "Non-FIN frames not yet supported");
     let kind = if binary then `Binary else `Text in
     if !closed then
       close !close_code
@@ -195,9 +206,13 @@ let websocket_handler user's_websocket_handler socket =
     end
   in
 
-  (* TODO Log if the length is non-zero, as current websocket/af offers no way
-     to send the user data. Also log if the length is greater than 125. *)
-  let ping _buffer _offset _length ~ok ~close =
+  let ping _buffer _offset length ~ok ~close =
+    if length > 125 then
+      raise (Failure "Ping payload cannot exceed 125 bytes");
+    (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
+    if length > 0 then
+      websocket_log.warning (fun log ->
+        log "Ping with non-empty payload not yet supported");
     if !closed then
       close !close_code
     else begin
@@ -206,7 +221,15 @@ let websocket_handler user's_websocket_handler socket =
     end
   in
 
-  let pong _buffer _offset _length ~ok ~close =
+  let pong _buffer _offset length ~ok ~close =
+    (* TODO Is there any way for the peer to send a ping payload with more than
+       125 bytes, forcing a too-large pong and an exception? *)
+    if length > 125 then
+      raise (Failure "Pong payload cannot exceed 125 bytes");
+    (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
+    if length > 0 then
+      websocket_log.warning (fun log ->
+        log "Pong with non-empty payload not yet supported");
     if !closed then
       close !close_code
     else begin

From 54c4600cb0aac0828f0d4315de09f7839a63cd28 Mon Sep 17 00:00:00 2001
From: Romain Calascibetta <romain.calascibetta@gmail.com>
Date: Mon, 29 Nov 2021 13:45:58 +0100
Subject: [PATCH 048/312] Update gluten & tls

---
 src/vendor/gluten | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vendor/gluten b/src/vendor/gluten
index 475c3610..0c9341a6 160000
--- a/src/vendor/gluten
+++ b/src/vendor/gluten
@@ -1 +1 @@
-Subproject commit 475c36109fad6a09cec9d1a1b9b2f9c3818fc854
+Subproject commit 0c9341a64ee7432c7a3e1a5e97b4012fee2775c2

From 9743279d4115b6ce43863bee5ef9c0465376fff3 Mon Sep 17 00:00:00 2001
From: Romain Calascibetta <romain.calascibetta@gmail.com>
Date: Mon, 29 Nov 2021 17:16:24 +0100
Subject: [PATCH 049/312] Update the MirageOS codebase

---
 src/mirage/adapt.ml   | 55 ++++++++++++++++++-----------
 src/mirage/mirage.ml  | 82 +++++++++++++++----------------------------
 src/mirage/mirage.mli | 23 +++++++-----
 src/vendor/paf        |  2 +-
 4 files changed, 78 insertions(+), 84 deletions(-)

diff --git a/src/mirage/adapt.ml b/src/mirage/adapt.ml
index 2fc999ba..bf5d7e54 100644
--- a/src/mirage/adapt.ml
+++ b/src/mirage/adapt.ml
@@ -7,6 +7,7 @@
    depends on [Unix]. *)
 
 module Dream = Dream__pure.Inmost
+module Stream = Dream__pure.Stream
 
 (* TODO Write a test simulating client exit during SSE; this was killing the
    server at some point. *)
@@ -14,45 +15,57 @@ module Dream = Dream__pure.Inmost
 (* TODO Rewrite using Dream.next. *)
 let forward_body_general
     (response : Dream.response)
-    (write_string : ?off:int -> ?len:int -> string -> unit)
-    (write_buffer : ?off:int -> ?len:int -> Dream.buffer -> unit)
+    (_write_string : ?off:int -> ?len:int -> string -> unit)
+    (write_buffer : ?off:int -> ?len:int -> Stream.buffer -> unit)
     http_flush
     close =
+  let bytes_since_flush = ref 0 in
 
   let rec send () =
-    response
-    |> Dream.next
-      ~buffer
-      ~string
-      ~flush
-      ~close
-      ~exn:ignore
+    Dream.body_stream response
+    |> fun stream ->
+      Stream.read
+        stream
+        ~data
+        ~close
+        ~flush
+        ~ping
+        ~pong
 
-  and buffer chunk off len =
+  and data chunk off len _binary _fin =
     write_buffer ~off ~len chunk;
-    send ()
-
-  and string chunk off len =
-    write_string ~off ~len chunk;
-    send ()
+    bytes_since_flush := !bytes_since_flush + len;
+    if !bytes_since_flush >= 4096 then begin
+      bytes_since_flush := 0;
+      http_flush send
+    end
+    else
+      send ()
 
   and flush () =
+    bytes_since_flush := 0;
     http_flush send
 
+  and ping _buffer _offset _length =
+    send ()
+
+  and pong _buffer _offset _length =
+    send ()
+
   in
 
   send ()
 
 let forward_body
     (response : Dream.response)
-    (body : [ `write ] Httpaf.Body.t) =
+    (body : Httpaf.Body.Writer.t) =
 
   forward_body_general
     response
-    (Httpaf.Body.write_string body)
-    (Httpaf.Body.write_bigstring body)
-    (Httpaf.Body.flush body)
-    (fun () -> Httpaf.Body.close_writer body)
+    (Httpaf.Body.Writer.write_string body)
+    (Httpaf.Body.Writer.write_bigstring body)
+    (Httpaf.Body.Writer.flush body)
+    (fun _code -> Httpaf.Body.Writer.close body)
 
 let forward_body_h2
     (response : Dream.response)
@@ -63,4 +76,4 @@ let forward_body_h2
     (H2.Body.write_string body)
     (H2.Body.write_bigstring body)
     (H2.Body.flush body)
-    (fun () -> H2.Body.close_writer body)
+    (fun _code -> H2.Body.close_writer body)
diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 03fb47ed..003abcc0 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -1,5 +1,3 @@
-[@@@warning "-32"]
-
 module Dream = Dream__pure.Inmost
 
 open Rresult
@@ -12,14 +10,7 @@ let sha1 str = Digestif.SHA1.(to_raw_string (digest_string str))
 let const x = fun _ -> x
 let ( >>? ) = Lwt_result.bind
 
-let rec transmit_body request stream () =
-  Lwt_stream.get stream >>= function
-  | Some (buffer, off, len) ->
-    Dream__pure.Body.write_bigstring buffer off len request.Dream.body >>=
-    transmit_body request stream
-  | None -> Dream.close_stream request
-
-let wrap_handler_httpaf app (_user's_error_handler : Dream.error_handler) (user's_dream_handler : Dream.handler) =
+let wrap_handler_httpaf app _user's_error_handler user's_dream_handler =
   let httpaf_request_handler = fun client reqd ->
     let httpaf_request = Httpaf.Reqd.request reqd in
     let method_ = to_dream_method httpaf_request.meth in
@@ -27,24 +18,19 @@ let wrap_handler_httpaf app (_user's_error_handler : Dream.error_handler) (user'
     let version = (httpaf_request.version.major, httpaf_request.version.minor) in
     let headers = Httpaf.Headers.to_list httpaf_request.headers in
     let body    = Httpaf.Reqd.request_body reqd in
-    let request = Dream.request_from_http ~app ~client ~method_ ~target ~version ~headers in
 
-    Lwt.async begin fun () ->
-      let%lwt () = Dream.flush request in
-      let on_eof () = Dream.close_stream request |> ignore in
-
-      let rec loop () =
-        Httpaf.Body.schedule_read
-          body
-          ~on_eof
-          ~on_read:(fun buffer ~off ~len ->
-            Lwt.on_success
-              (Dream__pure.Body.write_bigstring buffer off len request.body)
-              loop)
-      in
-      loop ();
-      Lwt.return_unit
-    end;
+    let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
+      Httpaf.Body.Reader.schedule_read
+        body
+        ~on_eof:(fun () -> close 1000)
+        ~on_read:(fun buffer ~off ~len -> data buffer off len true false)
+    in
+    let close _close =
+      Httpaf.Body.Reader.close body in
+    let body =
+      Dream__pure.Stream.read_only ~read ~close in
+
+    let request = Dream.request_from_http ~app ~client ~method_ ~target ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -107,41 +93,32 @@ let wrap_handler_httpaf app (_user's_error_handler : Dream.error_handler) (user'
   httpaf_request_handler
 
 let request_handler
-  : Dream.app -> Dream.error_handler -> Dream.handler -> string -> [ `write ] Alpn.reqd_handler -> unit
+  : Dream.app -> Dream.error_handler -> Dream.handler -> string -> Alpn.reqd -> unit
   = fun app
       (user's_error_handler : Dream.error_handler)
       (user's_dream_handler : Dream.handler) -> ();
     fun client_address -> function
-    | Alpn.Reqd_handler (Alpn.HTTP_1_1, reqd) -> wrap_handler_httpaf app user's_error_handler user's_dream_handler client_address reqd
+    | Alpn.Reqd_HTTP_1_1 reqd -> wrap_handler_httpaf app user's_error_handler user's_dream_handler client_address reqd
     | _ -> assert false
 
 let error_handler
   : Dream.app -> Dream.error_handler -> string -> ?request:Alpn.request -> Alpn.server_error ->
-    (Alpn.headers -> [ `write ] Alpn.body) -> unit
+    (Alpn.headers -> Alpn.body) -> unit
   = fun app
       (user's_error_handler : Dream.error_handler) -> ();
     fun client ?request error start_response ->
   match request with
-  | Some (Alpn.Request (Alpn.HTTP_1_1, request)) ->
-    let start_response hdrs : [ `write ] Httpaf.Body.t = match start_response Alpn.(Headers (HTTP_1_1, hdrs)) with
-      | Alpn.(Body (HTTP_1_1, body)) -> body
-      | Alpn.(Body (HTTP_2_0, _)) -> Fmt.failwith "Impossible to respond with an h2 respond to an HTTP/1.1 client" in
+  | Some (Alpn.Request_HTTP_1_1 request) ->
+    let start_response hdrs : Httpaf.Body.Writer.t = match start_response Alpn.(Headers_HTTP_1_1 hdrs) with
+      | Alpn.Body_HTTP_1_1 (Alpn.Wr, Alpn.Body_wr body) -> body
+      | _ -> Fmt.failwith "Impossible to respond with an h2 respond to an HTTP/1.1 client" in
     Error_handler.httpaf app user's_error_handler client ?request:(Some request) error start_response
   | _ -> assert false (* TODO *)
 
 module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirage_stack.V4V6) = struct
-  module Method_and_status =
-  struct
-    include Dream__pure.Method
-    include Dream__pure.Status
-  end
-
+  include Dream__pure.Stream
   include Dream__pure.Inmost
 
-  (* Eliminate optional arguments from the public interface for now. *)
-  let next ~buffer ~close ~exn request =
-    next ~buffer ~close ~exn request
-  
   include Dream__middleware.Log
   include Dream__middleware.Log.Make (Pclock)
   include Dream__middleware.Echo
@@ -159,8 +136,6 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
   include Dream__middleware.Session
   include Dream__middleware.Session.Make (Pclock)
 
-  (* include Dream__middleware.Flash_message *)
-
   include Dream__middleware.Origin_referrer_check
   include Dream__middleware.Form
   include Dream__middleware.Upload
@@ -179,8 +154,6 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
 
   let random =
     Dream__cipher.Random.random
-  (* XXX(dinosaure): [Mirage_crypto_rng_mirage] should already be initialized by
-   * the [main.ml] generated by [mirage]. *)
 
   include Dream__pure.Formats
 
@@ -206,7 +179,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
     let alpn (_, flow) = match TLS.epoch flow with
       | Ok { Tls.Core.alpn_protocol; _ } -> alpn_protocol
       | Error _ -> None in
-    let peer ((ipaddr, port), _) = Fmt.strf "%a:%d" Ipaddr.pp ipaddr port in
+    let peer ((ipaddr, port), _) = Fmt.str "%a:%d" Ipaddr.pp ipaddr port in
     let injection (_, flow) = R.T flow in
     { Alpn.alpn; peer; injection; }
 
@@ -228,7 +201,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
 
   let https ?stop ~port ?(prefix= "") stack
     ?(cfg= Tls.Config.server ~certificates:localhost_certificate ())
-    ?error_handler:(user's_error_handler= Error_handler.default) user's_dream_handler =
+    ?error_handler:(user's_error_handler : error_handler = Error_handler.default) (user's_dream_handler : handler) =
     let prefix = prefix
       |> Dream__pure.Formats.from_path
       |> Dream__pure.Formats.drop_trailing_slash in
@@ -242,7 +215,8 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
     let user's_dream_handler =
       built_in_middleware user's_dream_handler in
     let error_handler = error_handler app user's_error_handler in
-    let request_handler = request_handler app user's_error_handler user's_dream_handler in
+    let request_handler =
+      request_handler app user's_error_handler user's_dream_handler in
     let service = Alpn.service alpn ~error_handler ~request_handler accept close in
     init ~port stack >>= fun t ->
     let `Initialized th = serve ?stop service t in th
@@ -253,11 +227,13 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
       | `HTTP_1_1 -> "http/1.1" in
     let module R = (val Mimic.repr tcp_protocol) in
     let alpn _ = Some protocol in
-    let peer ((ipaddr, port), _) = Fmt.strf "%a:%d" Ipaddr.pp ipaddr port in
+    let peer ((ipaddr, port), _) = Fmt.str "%a:%d" Ipaddr.pp ipaddr port in
     let injection (_, flow) = R.T flow in
     { Alpn.alpn; peer; injection; }
 
-  let http ?stop ~port ?(prefix= "") ?(protocol= `HTTP_1_1) stack ?error_handler:(user's_error_handler= Error_handler.default) user's_dream_handler =
+  let http ?stop ~port ?(prefix= "") ?(protocol= `HTTP_1_1) stack
+    ?error_handler:(user's_error_handler= Error_handler.default)
+    user's_dream_handler =
     let prefix = prefix
       |> Dream__pure.Formats.from_path
       |> Dream__pure.Formats.drop_trailing_slash in
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index 314aecbd..658a6215 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -1,14 +1,19 @@
-type request
-type response
+type incoming
+type outgoing
+
+type 'a message
+
+type request = incoming message
+type response = outgoing message
 
 type handler = request -> response Lwt.t
+type middleware = handler -> handler
 
 module Make
   (Pclock : Mirage_clock.PCLOCK)
   (Time : Mirage_time.S)
   (Stack : Mirage_stack.V4V6) : sig
-  type middleware = handler -> handler
-  
+
   type route
 
   type method_ =
@@ -105,7 +110,7 @@ module Make
   val error     : ('a, unit) conditional_log
   val warning   : ('a, unit) conditional_log
   val info      : ('a, unit) conditional_log
-  val debug     : ('a, unit) conditional_log
+  (* val debug     : ('a, unit) conditional_log *)
 
   val html : ?status:status -> ?code:int -> ?headers:(string * string) list -> string -> response Lwt.t
 
@@ -132,8 +137,8 @@ module Make
   type multipart_form =
     (string * ((string option * string) list)) list
 
-  val form : request -> (string * string) list form_result Lwt.t
-  val multipart : request -> multipart_form form_result Lwt.t
+  val form : ?csrf:bool -> request -> (string * string) list form_result Lwt.t
+  val multipart : ?csrf:bool -> request -> multipart_form form_result Lwt.t
 
   val form_tag :
     ?method_:method_ ->
@@ -181,7 +186,7 @@ module Make
        ?stop:Lwt_switch.t
     -> port:int
     -> ?prefix:string
-    -> Stack.t
+    -> Stack.TCP.t
     -> ?cfg:Tls.Config.server
     -> ?error_handler:error_handler
     -> handler
@@ -192,7 +197,7 @@ module Make
     -> port:int
     -> ?prefix:string
     -> ?protocol:[ `H2 | `HTTP_1_1 ]
-    -> Stack.t
+    -> Stack.TCP.t
     -> ?error_handler:error_handler
     -> handler
     -> unit Lwt.t
diff --git a/src/vendor/paf b/src/vendor/paf
index 11e9a28e..b52b0e6b 160000
--- a/src/vendor/paf
+++ b/src/vendor/paf
@@ -1 +1 @@
-Subproject commit 11e9a28ece6dbcdcca75fdff160af903d87c88f3
+Subproject commit b52b0e6be8b7bb6f0dcb84c4d82963114468956a

From d94b4a2bf1e133b0e37d64116bb3970786db0b9b Mon Sep 17 00:00:00 2001
From: Romain Calascibetta <romain.calascibetta@gmail.com>
Date: Mon, 29 Nov 2021 17:16:37 +0100
Subject: [PATCH 050/312] Update example about MirageOS

---
 example/m-mirage/config.ml    |  1 +
 example/m-mirage/unikernel.ml | 16 ++++++++++------
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/example/m-mirage/config.ml b/example/m-mirage/config.ml
index b8be79da..65545229 100644
--- a/example/m-mirage/config.ml
+++ b/example/m-mirage/config.ml
@@ -37,6 +37,7 @@ let dream =
     ~packages:[ package "ca-certs-nss"
               ; package "dns-client" ~sublibs:[ "mirage" ]
               ; package "dream-mirage" ~sublibs:[ "paf.le" ]
+              ; package "checkseum" ~sublibs:[ "c" ]
               ; package "dream-mirage" ]
     ~keys:Key.([ abstract port
                ; abstract hostname
diff --git a/example/m-mirage/unikernel.ml b/example/m-mirage/unikernel.ml
index 87b67658..c3700a9b 100644
--- a/example/m-mirage/unikernel.ml
+++ b/example/m-mirage/unikernel.ml
@@ -22,7 +22,7 @@ module Make
     ; Dream.get "/echo/:word" echo ]
     @@ Dream.not_found
 
-  module DNS = Dns_client_mirage.Make (Random) (Time) (Mclock) (Stack)
+  module DNS = Dns_client_mirage.Make (Random) (Time) (Mclock) (Pclock) (Stack)
   module Let = LE.Make (Time) (Stack)
   module Nss = Ca_certs_nss.Make (Pclock)
   module Paf = Paf_mirage.Make (Time) (Stack)
@@ -35,7 +35,7 @@ module Make
   let error_handler _ ?request:_ _ _ = ()
 
   let get_certificates ?(production= false) cfg stackv4v6 =
-    Paf.init ~port:80 stackv4v6 >>= fun t ->
+    Paf.init ~port:80 (Stack.tcp stackv4v6) >>= fun t ->
     let service = Paf.http_service ~error_handler Let.request_handler in
     Lwt_switch.with_switch @@ fun stop ->
     let `Initialized th = Paf.serve ~stop service t in
@@ -50,18 +50,22 @@ module Make
   let https_with_letsencrypt stackv4v6 =
     let cfg =
       { LE.certificate_seed= Key_gen.cert_seed ()
+      ; LE.certificate_key_type= `ED25519
+      ; LE.certificate_key_bits= None
       ; LE.email= Option.bind (Key_gen.email ()) (R.to_option <.> Emile.of_string)
-      ; LE.seed= Key_gen.account_seed ()
+      ; LE.account_seed= Key_gen.account_seed ()
+      ; LE.account_key_type= `ED25519
+      ; LE.account_key_bits= None
       ; LE.hostname= Domain_name.(host_exn <.> of_string_exn) (Key_gen.hostname ()) } in
     get_certificates ~production:(Key_gen.production ()) cfg stackv4v6 >>= fun certificates -> 
     let tls = Tls.Config.server ~certificates () in
-    Dream.https ~port:(Key_gen.port ()) stackv4v6 ~cfg:tls dream
+    Dream.https ~port:(Key_gen.port ()) (Stack.tcp stackv4v6) ~cfg:tls dream
 
   let https stackv4v6 =
-    Dream.https ~port:(Key_gen.port ()) stackv4v6 dream
+    Dream.https ~port:(Key_gen.port ()) (Stack.tcp stackv4v6) dream
 
   let http stackv4v6 =
-    Dream.http ~port:(Key_gen.port ()) stackv4v6 dream
+    Dream.http ~port:(Key_gen.port ()) (Stack.tcp stackv4v6) dream
 
   let start _console () () () () stackv4v6 =
     match Key_gen.tls (), Key_gen.letsencrypt () with

From 560ea7d9997d0174843a20639e9ba0552fc93567 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 5 Dec 2021 19:40:56 +0300
Subject: [PATCH 051/312] Initial commit of a Dream client library

This is just the lowest-level, rough API, to begin exercising the new
streams API that is supposed to work on both client and server, and to
find out how to best simplify and expose it.
---
 example/w-client/client.ml    |  41 +++++++++++
 example/w-client/dune         |   6 ++
 example/w-client/dune-project |   1 +
 hyper.opam                    |  11 +++
 src/dune                      |  10 +++
 src/hyper.ml                  | 127 ++++++++++++++++++++++++++++++++++
 src/hyper.mli                 |   7 ++
 7 files changed, 203 insertions(+)
 create mode 100644 example/w-client/client.ml
 create mode 100644 example/w-client/dune
 create mode 100644 example/w-client/dune-project
 create mode 100644 hyper.opam
 create mode 100644 src/hyper.ml
 create mode 100644 src/hyper.mli

diff --git a/example/w-client/client.ml b/example/w-client/client.ml
new file mode 100644
index 00000000..add31658
--- /dev/null
+++ b/example/w-client/client.ml
@@ -0,0 +1,41 @@
+let () =
+  (* TODO Without Dream.run in the process, this doesn't get set anywhere... *)
+  Printexc.record_backtrace true;
+
+  (* TODO Eventually replace this by the higher-level wrappers that Hyper will
+     offer. Move the explicit-request call into a proxy example, that forwards
+     Dream requests directly to Hyper.send. *)
+  (* TODO This example is meant for running concurrently with example/w-echo. *)
+  let request =
+    Dream.request
+      ~method_:`POST
+      ~target:"http://127.0.0.1:8080/echo" "Good morning, world!"
+      ~headers:["Transfer-Encoding", "chunked"]
+  in
+
+  (* TODO Note that this wrapper is not necessary if using, for example,
+     Dream.run. Create a proxy example that has both a Dream server and a Hyper
+     client, and therefore has no explicit Lwt_main.run. *)
+  Lwt_main.run begin
+    let done_, notify_done = Lwt.wait () in
+
+    (* TODO Add some kind of primitive error handling, both for network errors
+       and for error responses. *)
+    let%lwt response = Hyper.send request in
+    let rec read () =
+      (* TODO Use a higher-level reader once available. *)
+      Dream.next
+        (Dream.body_stream response)
+        ~data:(fun buffer offset length _binary _fin ->
+          Bigstringaf.substring buffer ~off:offset ~len:length
+          |> print_string;
+          read ())
+        ~close:(fun _code -> Lwt.wakeup_later notify_done ())
+        ~flush:read
+        ~ping:(fun _buffer _offset _length -> read ())
+        ~pong:(fun _buffer _offset _length -> read ())
+    in
+    read ();
+
+    done_
+  end
diff --git a/example/w-client/dune b/example/w-client/dune
new file mode 100644
index 00000000..07ffc06d
--- /dev/null
+++ b/example/w-client/dune
@@ -0,0 +1,6 @@
+(executable
+ (name client)
+ (libraries hyper)
+ (preprocess (pps lwt_ppx)))
+
+(data_only_dirs _esy esy.lock lib node_modules)
diff --git a/example/w-client/dune-project b/example/w-client/dune-project
new file mode 100644
index 00000000..929c696e
--- /dev/null
+++ b/example/w-client/dune-project
@@ -0,0 +1 @@
+(lang dune 2.0)
diff --git a/hyper.opam b/hyper.opam
new file mode 100644
index 00000000..7cbd2efc
--- /dev/null
+++ b/hyper.opam
@@ -0,0 +1,11 @@
+opam-version: "2.0"
+
+depends: [
+  "dream"
+  "ocaml"
+  "uri"
+]
+
+build: [
+  ["dune" "build" "-p" name "-j" jobs]
+]
diff --git a/src/dune b/src/dune
index c36649b9..d3b4cf10 100644
--- a/src/dune
+++ b/src/dune
@@ -1,6 +1,7 @@
 (library
  (public_name dream)
  (wrapped false)
+ (modules dream)
  (libraries
   caqti-lwt
   dream.cipher
@@ -18,3 +19,12 @@
   mirage-crypto-rng.lwt
   ptime.clock.os
  ))
+
+(library
+ (public_name hyper)
+ (wrapped false)
+ (modules hyper)
+ (libraries
+  dream
+ )
+ (preprocess (pps lwt_ppx)))
diff --git a/src/hyper.ml b/src/hyper.ml
new file mode 100644
index 00000000..49a3d42b
--- /dev/null
+++ b/src/hyper.ml
@@ -0,0 +1,127 @@
+type request = Dream.request
+type response = Dream.response
+type 'a promise = 'a Lwt.t
+
+type method_ = Dream.method_
+
+(* TODO How should the host and port be represented? *)
+(* TODO Good error handling. *)
+let send hyper_request =
+  let uri = Uri.of_string (Dream.target hyper_request) in
+  let host = Uri.host uri |> Option.get
+  and port = Uri.port uri |> Option.value ~default:80
+  and method_ = Dream.method_ hyper_request
+  and path_and_query = Uri.path_and_query uri
+  in
+  (* TODO Usage of Option.get above is temporary, though failure to provide a
+     host should probably be a logic error, and doesn't have to be reported in a
+     "neat" way - just a debuggable way. The port can be inferred from the
+     scheme if it is missing. We are assuming http:// for now. *)
+
+  let%lwt addresses =
+    Lwt_unix.getaddrinfo host (string_of_int port) [Unix.(AI_FAMILY PF_INET)] in
+  let address = (List.hd addresses).Unix.ai_addr in
+  (* TODO Note: this can raise. *)
+
+  let socket = Lwt_unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in
+  let%lwt () = Lwt_unix.connect socket address in
+  let%lwt connection = Httpaf_lwt_unix.Client.create_connection socket in
+
+  let response_promise, received_response = Lwt.wait () in
+
+  (* TODO Do we now want to store the verson? *)
+  let response_handler
+      (httpaf_response : Httpaf.Response.t)
+      httpaf_response_body =
+
+    (* TODO Using Dream.stream is awkward here, but it allows getting a response
+       with a stream inside it without immeidately having to modify Dream. Once
+       that is fixed, the Lwt.async can be removed, most likely. Dream.stream's
+       signature will change in Dream either way, so it's best to just hold off
+       tweaking it now. *)
+    Lwt.async begin fun () ->
+      let%lwt hyper_response =
+        Dream.stream
+          ~code:(Httpaf.Status.to_code httpaf_response.status)
+          ~headers:(Httpaf.Headers.to_list httpaf_response.headers)
+          (fun _response -> Lwt.return ())
+      in
+      Lwt.wakeup_later received_response hyper_response;
+
+      (* TODO A janky reader. Once Dream.stream is fixed and streams are fully
+         exposed, this can become a good pull-reader. *)
+      let rec receive () =
+        Httpaf.Body.Reader.schedule_read
+          httpaf_response_body
+          ~on_eof:(fun () ->
+            Lwt.async (fun () ->
+              let%lwt () = Dream.close_stream hyper_response in
+              Httpaf_lwt_unix.Client.shutdown connection))
+              (* TODO Make sure there is a way for the reader to abort reading
+                 the stream and yet still get the socket closed. *)
+          ~on_read:(fun buffer ~off ~len ->
+            Lwt.async (fun () ->
+              let%lwt () =
+                Dream.write_buffer
+                  ~offset:off ~length:len hyper_response buffer in
+              Lwt.return (receive ())))
+      in
+      receive ();
+
+      Lwt.return ()
+    end
+  in
+
+  let httpaf_request =
+    Httpaf.Request.create
+      ~headers:(Httpaf.Headers.of_list (Dream.all_headers hyper_request))
+      (Httpaf.Method.of_string (Dream.method_to_string method_))
+      path_and_query in
+  let httpaf_request_body =
+    Httpaf_lwt_unix.Client.request
+      connection
+      ~error_handler:(fun _ -> failwith "Protocol error") (* TODO *)
+      ~response_handler
+      httpaf_request in
+
+  let rec send () =
+    Dream.body_stream hyper_request
+    |> fun stream ->
+      Dream.next stream ~data ~close ~flush ~ping ~pong
+
+  (* TODO Implement flow control like on the server side, using flush. *)
+  and data buffer offset length _binary _fin =
+    Httpaf.Body.Writer.write_bigstring
+      httpaf_request_body
+      ~off:offset
+      ~len:length
+      buffer;
+    send ()
+
+  and close _code = Httpaf.Body.Writer.close httpaf_request_body
+  and flush () = send ()
+  and ping _buffer _offset _length = send ()
+  and pong _buffer _offset _length = send ()
+
+  in
+
+  send ();
+
+  response_promise
+
+
+
+(* TODO Which function should be the most fundamental function? Probably the
+   request -> response runner. But it's probably not the most convenient for
+   general usage.
+
+   How should the host and port be represented? Can probably just allow them in
+   [target], but also allow overriding them so that only the path and query are
+   used. This could get confusing, though.
+
+   To start with, implement a good request -> response runner that does the
+   basics: create a request, allow streaming out its body, receive a response,
+   allow streaming in its body. After that, elaborate. Probably should start
+   with HTTP/2 and SSL.
+
+   How are non-response errors reported? *)
diff --git a/src/hyper.mli b/src/hyper.mli
new file mode 100644
index 00000000..fddfdaa9
--- /dev/null
+++ b/src/hyper.mli
@@ -0,0 +1,7 @@
+type request = Dream.request
+type response = Dream.response
+type 'a promise = 'a Lwt.t
+
+type method_ = Dream.method_
+
+val send : request -> response promise

From c98d11063c5b056d11c749506dd7700099c14171 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 6 Dec 2021 21:36:29 +0300
Subject: [PATCH 052/312] Client: proof-of-concept connection pooling

---
 example/w-client/client.ml | 53 ++++++++++++-----------
 src/hyper.ml               | 87 +++++++++++++++++++++++++++++++++-----
 src/hyper.mli              | 20 ++++++++-
 3 files changed, 124 insertions(+), 36 deletions(-)

diff --git a/example/w-client/client.ml b/example/w-client/client.ml
index add31658..569d8577 100644
--- a/example/w-client/client.ml
+++ b/example/w-client/client.ml
@@ -1,7 +1,4 @@
-let () =
-  (* TODO Without Dream.run in the process, this doesn't get set anywhere... *)
-  Printexc.record_backtrace true;
-
+let send () =
   (* TODO Eventually replace this by the higher-level wrappers that Hyper will
      offer. Move the explicit-request call into a proxy example, that forwards
      Dream requests directly to Hyper.send. *)
@@ -16,26 +13,34 @@ let () =
   (* TODO Note that this wrapper is not necessary if using, for example,
      Dream.run. Create a proxy example that has both a Dream server and a Hyper
      client, and therefore has no explicit Lwt_main.run. *)
-  Lwt_main.run begin
-    let done_, notify_done = Lwt.wait () in
+  let done_, notify_done = Lwt.wait () in
+
+  (* TODO Add some kind of primitive error handling, both for network errors
+     and for error responses. *)
+  let%lwt response = Hyper.send request in
+  let rec read () =
+    (* TODO Use a higher-level reader once available. *)
+    Dream.next
+      (Dream.body_stream response)
+      ~data:(fun buffer offset length _binary _fin ->
+        Bigstringaf.substring buffer ~off:offset ~len:length
+        |> print_string;
+        read ())
+      ~close:(fun _code -> Lwt.wakeup_later notify_done ())
+      ~flush:read
+      ~ping:(fun _buffer _offset _length -> read ())
+      ~pong:(fun _buffer _offset _length -> read ())
+  in
+  read ();
+
+  done_
 
-    (* TODO Add some kind of primitive error handling, both for network errors
-       and for error responses. *)
-    let%lwt response = Hyper.send request in
-    let rec read () =
-      (* TODO Use a higher-level reader once available. *)
-      Dream.next
-        (Dream.body_stream response)
-        ~data:(fun buffer offset length _binary _fin ->
-          Bigstringaf.substring buffer ~off:offset ~len:length
-          |> print_string;
-          read ())
-        ~close:(fun _code -> Lwt.wakeup_later notify_done ())
-        ~flush:read
-        ~ping:(fun _buffer _offset _length -> read ())
-        ~pong:(fun _buffer _offset _length -> read ())
-    in
-    read ();
+let () =
+  (* TODO Without Dream.run in the process, this doesn't get set anywhere... *)
+  Printexc.record_backtrace true;
 
-    done_
+  Lwt_main.run begin
+    let%lwt () = send () in
+    let%lwt () = send () in
+    Lwt.return ()
   end
diff --git a/src/hyper.ml b/src/hyper.ml
index 49a3d42b..2e546443 100644
--- a/src/hyper.ml
+++ b/src/hyper.ml
@@ -4,11 +4,65 @@ type 'a promise = 'a Lwt.t
 
 type method_ = Dream.method_
 
+type connection = Httpaf_lwt_unix.Client.t
+type host = string * string * int
+(* TODO But what should a host be? An unresolved hostname:port, or a resolved
+   hostname:port? Hosts probably also need a comparison function or
+   something. And probably a pretty-printing function. These things are entirely
+   abstract. But, because they are abstract, it's possible to change the
+   implementation, in particular to switch from unresolved to resolved hosts.
+   Using unresolved hosts implies doing DNS before deciding whether each request
+   can reuse a connection from the pool. Though that can be avoided by using a
+   DNS cache, it seems like the pool should short-circuit that entire process.
+   So, this becomes some kind of scheme-host-port triplet. *)
+(* TODO Also, how should this work with HTTP/2 and multiplexing? Need to address
+   that next. *)
+
+type connection_pool = {
+  obtain : host -> request -> connection option promise;
+  return :
+    host -> request -> response -> connection -> (connection -> unit promise) ->
+      unit promise;
+}
+(* TODO Return needs to provide a function for destroying a connection. *)
+
+let connection_pool ~obtain ~return =
+  {obtain; return}
+
+let _no_pooling =
+  connection_pool
+    ~obtain:(fun _host _request ->
+      Lwt.return_none)
+    ~return:(fun _host _request _response connection destroy ->
+      destroy connection)
+
+(* TODO Non-trivial pools should always be generated, i.e. this should be a
+   function of at least (). However, we are just doing proof-of-concept code
+   here, to work out the protocol details, rather than a great connection
+   pool. Most connection pool should also examine the Connection: header, and
+   perhaps other headers. *)
+let indefinite_keepalive =
+  let pool = Hashtbl.create 32 in
+  connection_pool
+    ~obtain:(fun host _request ->
+      match Hashtbl.find_opt pool host with
+      | Some connection ->
+        Hashtbl.remove pool host;
+        Lwt.return (Some connection)
+      | None ->
+        Lwt.return_none)
+    ~return:(fun host _request _response connection _destroy ->
+      Hashtbl.add pool host connection;
+      Lwt.return_unit)
+
 (* TODO How should the host and port be represented? *)
 (* TODO Good error handling. *)
-let send hyper_request =
+(* TODO Probably change the default to one per-process pool with some
+   configuration. *)
+let send ?(connection_pool = indefinite_keepalive) hyper_request =
   let uri = Uri.of_string (Dream.target hyper_request) in
-  let host = Uri.host uri |> Option.get
+  let scheme = Uri.scheme uri |> Option.get
+  and host = Uri.host uri |> Option.get
   and port = Uri.port uri |> Option.value ~default:80
   and method_ = Dream.method_ hyper_request
   and path_and_query = Uri.path_and_query uri
@@ -18,14 +72,23 @@ let send hyper_request =
      "neat" way - just a debuggable way. The port can be inferred from the
      scheme if it is missing. We are assuming http:// for now. *)
 
-  let%lwt addresses =
-    Lwt_unix.getaddrinfo host (string_of_int port) [Unix.(AI_FAMILY PF_INET)] in
-  let address = (List.hd addresses).Unix.ai_addr in
-  (* TODO Note: this can raise. *)
-
-  let socket = Lwt_unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in
-  let%lwt () = Lwt_unix.connect socket address in
-  let%lwt connection = Httpaf_lwt_unix.Client.create_connection socket in
+  let host_key = (scheme, host, port) in
+
+  let%lwt connection =
+    match%lwt connection_pool.obtain host_key hyper_request with
+    | Some connection ->
+      Lwt.return connection
+    | None ->
+      let%lwt addresses =
+        Lwt_unix.getaddrinfo
+          host (string_of_int port) [Unix.(AI_FAMILY PF_INET)] in
+      let address = (List.hd addresses).Unix.ai_addr in
+      (* TODO Note: this can raise. *)
+
+      let socket = Lwt_unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in
+      let%lwt () = Lwt_unix.connect socket address in
+      Httpaf_lwt_unix.Client.create_connection socket
+  in
 
   let response_promise, received_response = Lwt.wait () in
 
@@ -56,7 +119,9 @@ let send hyper_request =
           ~on_eof:(fun () ->
             Lwt.async (fun () ->
               let%lwt () = Dream.close_stream hyper_response in
-              Httpaf_lwt_unix.Client.shutdown connection))
+              connection_pool.return
+                host_key hyper_request hyper_response connection
+                Httpaf_lwt_unix.Client.shutdown))
               (* TODO Make sure there is a way for the reader to abort reading
                  the stream and yet still get the socket closed. *)
           ~on_read:(fun buffer ~off ~len ->
diff --git a/src/hyper.mli b/src/hyper.mli
index fddfdaa9..cbecfcbe 100644
--- a/src/hyper.mli
+++ b/src/hyper.mli
@@ -4,4 +4,22 @@ type 'a promise = 'a Lwt.t
 
 type method_ = Dream.method_
 
-val send : request -> response promise
+type connection_pool
+
+val send :
+  ?connection_pool:connection_pool ->
+    request -> response promise
+
+(* TODO The issue with connections is that they depend on the underlying stack
+   implementation, which is best kept as abstract as possible. That means the
+   best way to do this is to make the connection type abstract to users, and to
+   make all connection setup code internal to Hyper. That means the pool
+   connection get function that is provided by the user will not create
+   connections, so it must return options. *)
+type connection
+type host
+
+val connection_pool :
+  obtain:(host -> request -> connection option promise) ->
+  return:(host -> request -> response -> connection -> (connection -> unit promise) -> unit promise) ->
+    connection_pool

From c9ad93b7c99cd514a09afe5f8a55ea7c2f72afa0 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 8 Dec 2021 17:44:33 +0300
Subject: [PATCH 053/312] Client: primitive HTTPS support

Currently not doing certificate validation. Also not shutting the
connection down very cleanly, as this is best figured out after the I/O
rework is finished (for which an approximate client is needed).
---
 example/w-client/client.ml |  8 +++++---
 src/dune                   |  2 ++
 src/hyper.ml               | 40 ++++++++++++++++++++++++++++++++++----
 3 files changed, 43 insertions(+), 7 deletions(-)

diff --git a/example/w-client/client.ml b/example/w-client/client.ml
index 569d8577..b27efe66 100644
--- a/example/w-client/client.ml
+++ b/example/w-client/client.ml
@@ -5,9 +5,9 @@ let send () =
   (* TODO This example is meant for running concurrently with example/w-echo. *)
   let request =
     Dream.request
-      ~method_:`POST
-      ~target:"http://127.0.0.1:8080/echo" "Good morning, world!"
-      ~headers:["Transfer-Encoding", "chunked"]
+      ~method_:`GET
+      ~target:"https://127.0.0.1:8080" ""
+      (* ~headers:["Transfer-Encoding", "chunked"] *)
   in
 
   (* TODO Note that this wrapper is not necessary if using, for example,
@@ -44,3 +44,5 @@ let () =
     let%lwt () = send () in
     Lwt.return ()
   end
+
+(* TODO Run the server in the same process. *)
diff --git a/src/dune b/src/dune
index d3b4cf10..8c400261 100644
--- a/src/dune
+++ b/src/dune
@@ -26,5 +26,7 @@
  (modules hyper)
  (libraries
   dream
+  lwt_ssl
+  ssl
  )
  (preprocess (pps lwt_ppx)))
diff --git a/src/hyper.ml b/src/hyper.ml
index 2e546443..adcade88 100644
--- a/src/hyper.ml
+++ b/src/hyper.ml
@@ -4,7 +4,11 @@ type 'a promise = 'a Lwt.t
 
 type method_ = Dream.method_
 
-type connection = Httpaf_lwt_unix.Client.t
+(* TODO Is this the right representation? *)
+type connection =
+  | Cleartext of Httpaf_lwt_unix.Client.t
+  | SSL of Httpaf_lwt_unix.Client.SSL.t
+
 type host = string * string * int
 (* TODO But what should a host be? An unresolved hostname:port, or a resolved
    hostname:port? Hosts probably also need a comparison function or
@@ -87,7 +91,35 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
 
       let socket = Lwt_unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in
       let%lwt () = Lwt_unix.connect socket address in
-      Httpaf_lwt_unix.Client.create_connection socket
+
+      match scheme with
+      | "https" ->
+        (* TODO The context needs to be created once per process, or a cache
+           should be used. *)
+        let context = Ssl.(create_context TLSv1_2 Client_context) in
+        let%lwt ssl_socket = Lwt_ssl.ssl_connect socket context in
+        let%lwt connection =
+          Httpaf_lwt_unix.Client.SSL.create_connection ssl_socket in
+        Lwt.return (SSL connection)
+        (* TODO Need to do server certificate validation here, etc. *)
+      | _ -> (* TODO Should be a check for http specifically. *)
+        let%lwt connection = Httpaf_lwt_unix.Client.create_connection socket in
+        Lwt.return (Cleartext connection)
+  in
+
+  (* TODO These sorts of things can probably be done by passing the client
+     modules in as first-class modules. The code might be not so clear to read,
+     though. *)
+  let destroy connection =
+    match connection with
+    | Cleartext connection -> Httpaf_lwt_unix.Client.shutdown connection
+    | SSL connection -> Httpaf_lwt_unix.Client.SSL.shutdown connection
+  in
+
+  let request connection =
+    match connection with
+    | Cleartext connection -> Httpaf_lwt_unix.Client.request connection
+    | SSL connection -> Httpaf_lwt_unix.Client.SSL.request connection
   in
 
   let response_promise, received_response = Lwt.wait () in
@@ -121,7 +153,7 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
               let%lwt () = Dream.close_stream hyper_response in
               connection_pool.return
                 host_key hyper_request hyper_response connection
-                Httpaf_lwt_unix.Client.shutdown))
+                destroy))
               (* TODO Make sure there is a way for the reader to abort reading
                  the stream and yet still get the socket closed. *)
           ~on_read:(fun buffer ~off ~len ->
@@ -143,7 +175,7 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
       (Httpaf.Method.of_string (Dream.method_to_string method_))
       path_and_query in
   let httpaf_request_body =
-    Httpaf_lwt_unix.Client.request
+    request
       connection
       ~error_handler:(fun _ -> failwith "Protocol error") (* TODO *)
       ~response_handler

From e95f6be28ca13700df8aaacdfadba53092181ea4 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 8 Dec 2021 19:45:30 +0300
Subject: [PATCH 054/312] Client: bare-bones HTTP/2 support

There is no request multiplexing, and the code is generally very dirty.
Saving clarification for a separate refactoring step, after all that
needs to be in the client is sketched out.
---
 src/dune     |   6 +++
 src/hyper.ml | 109 +++++++++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 111 insertions(+), 4 deletions(-)

diff --git a/src/dune b/src/dune
index 8c400261..6e79896b 100644
--- a/src/dune
+++ b/src/dune
@@ -26,6 +26,12 @@
  (modules hyper)
  (libraries
   dream
+  dream.h2
+  dream.h2-lwt-unix
+  dream.httpaf
+  dream.httpaf-lwt-unix
+  lwt
+  lwt.unix
   lwt_ssl
   ssl
  )
diff --git a/src/hyper.ml b/src/hyper.ml
index adcade88..f61ae24d 100644
--- a/src/hyper.ml
+++ b/src/hyper.ml
@@ -8,6 +8,7 @@ type method_ = Dream.method_
 type connection =
   | Cleartext of Httpaf_lwt_unix.Client.t
   | SSL of Httpaf_lwt_unix.Client.SSL.t
+  | H2 of H2_lwt_unix.Client.SSL.t (* TODO No h2c support. *)
 
 type host = string * string * int
 (* TODO But what should a host be? An unresolved hostname:port, or a resolved
@@ -21,6 +22,9 @@ type host = string * string * int
    So, this becomes some kind of scheme-host-port triplet. *)
 (* TODO Also, how should this work with HTTP/2 and multiplexing? Need to address
    that next. *)
+(* TODO The scheme is probably not sufficient. Will also need the negotiated
+   protocol, as an https connection might have been upgraded to HTTP/2 or not at
+   the server's discretion during ALPN. *)
 
 type connection_pool = {
   obtain : host -> request -> connection option promise;
@@ -97,10 +101,27 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
         (* TODO The context needs to be created once per process, or a cache
            should be used. *)
         let context = Ssl.(create_context TLSv1_2 Client_context) in
+        (* TODO For WebSockets (wss://), the client should probably do SSL
+           without offering h2 by ALPN. Do any servers implement WebSockets over
+           HTTP/2? *)
+        Ssl.set_context_alpn_protos context ["h2"; "http/1.1"];
         let%lwt ssl_socket = Lwt_ssl.ssl_connect socket context in
-        let%lwt connection =
-          Httpaf_lwt_unix.Client.SSL.create_connection ssl_socket in
-        Lwt.return (SSL connection)
+        (* TODO Next line is pretty suspicious. *)
+        let underlying = Lwt_ssl.ssl_socket ssl_socket |> Option.get in
+        begin match Ssl.get_negotiated_alpn_protocol underlying with
+        | Some "h2" ->
+          (* TODO What about the error handler? *)
+          let%lwt connection =
+            H2_lwt_unix.Client.SSL.create_connection
+              ~error_handler:ignore
+              ssl_socket
+          in
+          Lwt.return (H2 connection)
+        | _ ->
+          let%lwt connection =
+            Httpaf_lwt_unix.Client.SSL.create_connection ssl_socket in
+          Lwt.return (SSL connection)
+        end
         (* TODO Need to do server certificate validation here, etc. *)
       | _ -> (* TODO Should be a check for http specifically. *)
         let%lwt connection = Httpaf_lwt_unix.Client.create_connection socket in
@@ -114,16 +135,24 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
     match connection with
     | Cleartext connection -> Httpaf_lwt_unix.Client.shutdown connection
     | SSL connection -> Httpaf_lwt_unix.Client.SSL.shutdown connection
+    | H2 connection -> H2_lwt_unix.Client.SSL.shutdown connection
   in
 
   let request connection =
     match connection with
     | Cleartext connection -> Httpaf_lwt_unix.Client.request connection
     | SSL connection -> Httpaf_lwt_unix.Client.SSL.request connection
+    | H2 _connection -> assert false
+      (* TODO H2 is just a separate CF branch for now. *)
   in
 
   let response_promise, received_response = Lwt.wait () in
 
+  begin match connection with
+  | Cleartext _ | SSL _ ->
+  (* TODO Did not indent the case body; quick and dirty "get it working"
+     version. *)
+
   (* TODO Do we now want to store the verson? *)
   let response_handler
       (httpaf_response : Httpaf.Response.t)
@@ -202,7 +231,79 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
 
   in
 
-  send ();
+  send ()
+
+  | H2 connection' ->
+    (* TODO This is a nasty duplicate of the above case, specialized for H2. See
+       comments above. *)
+    let response_handler (h2_response : H2.Response.t) h2_response_body =
+
+      Lwt.async begin fun () ->
+        let%lwt hyper_response =
+          Dream.stream
+            ~code:(H2.Status.to_code h2_response.status)
+            ~headers:(H2.Headers.to_list h2_response.headers)
+            (fun _response -> Lwt.return ())
+        in
+        Lwt.wakeup_later received_response hyper_response;
+
+        let rec receive () =
+          H2.Body.schedule_read
+            h2_response_body
+            ~on_eof:(fun () ->
+              Lwt.async (fun () ->
+                let%lwt () = Dream.close_stream hyper_response in
+                connection_pool.return
+                  host_key hyper_request hyper_response connection
+                  destroy))
+            ~on_read:(fun buffer ~off ~len ->
+              Lwt.async (fun () ->
+                let%lwt () =
+                  Dream.write_buffer
+                    ~offset:off ~length:len hyper_response buffer in
+                Lwt.return (receive ())))
+        in
+        receive ();
+
+        Lwt.return ()
+      end
+    in
+
+    let h2_request =
+      H2.Request.create
+        ~headers:(H2.Headers.of_list (Dream.all_headers hyper_request))
+        ~scheme
+        (H2.Method.of_string (Dream.method_to_string method_))
+        path_and_query in
+    let h2_request_body =
+      H2_lwt_unix.Client.SSL.request
+        connection'
+        h2_request
+        ~error_handler:(fun _ -> failwith "Protocol error")
+        ~response_handler in
+
+    let rec send () =
+      Dream.body_stream hyper_request
+      |> fun stream ->
+        Dream.next stream ~data ~close ~flush ~ping ~pong
+
+    and data buffer offset length _binary _fin =
+      H2.Body.write_bigstring
+        h2_request_body
+        ~off:offset
+        ~len:length
+        buffer;
+      send ()
+
+    and close _code = H2.Body.close_writer h2_request_body
+    and flush () = send ()
+    and ping _buffer _offset _length = send ()
+    and pong _buffer _offset _length = send ()
+
+    in
+
+    send ()
+  end;
 
   response_promise
 

From b178eda5c75a049af3d40ec9591b7f749c76ae9e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 9 Dec 2021 00:13:40 +0300
Subject: [PATCH 055/312] Client: sketch HTTP pipelining and multiplexing

---
 example/w-client/client.ml |  19 ++-
 src/hyper.ml               | 276 +++++++++++++++++++++++++------------
 src/hyper.mli              |  24 ++--
 3 files changed, 214 insertions(+), 105 deletions(-)

diff --git a/example/w-client/client.ml b/example/w-client/client.ml
index b27efe66..ae5b945f 100644
--- a/example/w-client/client.ml
+++ b/example/w-client/client.ml
@@ -5,9 +5,9 @@ let send () =
   (* TODO This example is meant for running concurrently with example/w-echo. *)
   let request =
     Dream.request
-      ~method_:`GET
-      ~target:"https://127.0.0.1:8080" ""
-      (* ~headers:["Transfer-Encoding", "chunked"] *)
+      ~method_:`POST
+      ~target:"http://127.0.0.1:8080/echo" "Good morning, world!"
+      ~headers:["Transfer-Encoding", "chunked"]
   in
 
   (* TODO Note that this wrapper is not necessary if using, for example,
@@ -18,6 +18,10 @@ let send () =
   (* TODO Add some kind of primitive error handling, both for network errors
      and for error responses. *)
   let%lwt response = Hyper.send request in
+
+  (* TODO Janky delay to give time for pipelining to intervene. *)
+  let%lwt () = Lwt_unix.sleep 5. in
+
   let rec read () =
     (* TODO Use a higher-level reader once available. *)
     Dream.next
@@ -40,8 +44,13 @@ let () =
   Printexc.record_backtrace true;
 
   Lwt_main.run begin
-    let%lwt () = send () in
-    let%lwt () = send () in
+    let first = send () in
+    let second =
+      let%lwt () = Lwt_unix.sleep 1. in
+      send ()
+    in
+    let%lwt () = first in
+    let%lwt () = second in
     Lwt.return ()
   end
 
diff --git a/src/hyper.ml b/src/hyper.ml
index f61ae24d..dbbc9fc6 100644
--- a/src/hyper.ml
+++ b/src/hyper.ml
@@ -2,7 +2,7 @@ type request = Dream.request
 type response = Dream.response
 type 'a promise = 'a Lwt.t
 
-type method_ = Dream.method_
+
 
 (* TODO Is this the right representation? *)
 type connection =
@@ -10,7 +10,7 @@ type connection =
   | SSL of Httpaf_lwt_unix.Client.SSL.t
   | H2 of H2_lwt_unix.Client.SSL.t (* TODO No h2c support. *)
 
-type host = string * string * int
+type endpoint = string * string * int
 (* TODO But what should a host be? An unresolved hostname:port, or a resolved
    hostname:port? Hosts probably also need a comparison function or
    something. And probably a pretty-printing function. These things are entirely
@@ -26,48 +26,131 @@ type host = string * string * int
    protocol, as an https connection might have been upgraded to HTTP/2 or not at
    the server's discretion during ALPN. *)
 
+(* TODO Implementation of pipelining might make it worthwhile to be able to tell
+   the client when a request has completed sending (only). However, given
+   pipelining is buggy and there is HTTP/2, maybe it's not worth complicating
+   the API for this. *)
+
+type create_result = {
+  connection : connection;
+  destroy : connection -> unit promise;
+  concurrency : [ `Sequence | `Pipeline | `Multiplex ];
+}
+type create = endpoint -> create_result promise
+
 type connection_pool = {
-  obtain : host -> request -> connection option promise;
-  return :
-    host -> request -> response -> connection -> (connection -> unit promise) ->
-      unit promise;
+  obtain : endpoint -> request -> create -> (connection * int64) promise;
+  write_done : int64 -> unit;
+  all_done : int64 -> response -> unit;
+  error : int64 -> unit;
 }
 (* TODO Return needs to provide a function for destroying a connection. *)
 
-let connection_pool ~obtain ~return =
-  {obtain; return}
-
-let _no_pooling =
-  connection_pool
-    ~obtain:(fun _host _request ->
-      Lwt.return_none)
-    ~return:(fun _host _request _response connection destroy ->
-      destroy connection)
-
-(* TODO Non-trivial pools should always be generated, i.e. this should be a
-   function of at least (). However, we are just doing proof-of-concept code
-   here, to work out the protocol details, rather than a great connection
-   pool. Most connection pool should also examine the Connection: header, and
-   perhaps other headers. *)
-let indefinite_keepalive =
-  let pool = Hashtbl.create 32 in
-  connection_pool
-    ~obtain:(fun host _request ->
-      match Hashtbl.find_opt pool host with
-      | Some connection ->
-        Hashtbl.remove pool host;
-        Lwt.return (Some connection)
-      | None ->
-        Lwt.return_none)
-    ~return:(fun host _request _response connection _destroy ->
-      Hashtbl.add pool host connection;
-      Lwt.return_unit)
+let connection_pool ~obtain ~write_done ~all_done ~error =
+  {obtain; write_done; all_done; error}
+
+
+
+type pooled_connection = {
+  create_result : create_result;
+  id : int64;
+  created_at : float;
+  mutable state : [
+    | `Writing_request
+    | `Reading_response_only
+    | `Idle
+  ];
+  mutable ref_count : int;
+  mutable idle_since : float;
+  mutable closing : bool;
+}
+
+(* TODO Add various interesting limits. *)
+let general_connection_pool () =
+  let connections_by_id = Hashtbl.create 32
+  and connections_by_endpoint = Hashtbl.create 32
+  and next_id = ref 0L in
+
+  let obtain endpoint _request create =
+    (* TODO There are, in general, multiple connections for each endpoit, so,
+       properly, the pool would have to either iterate over a list, or have an
+       acceleration data structure for accessing ready connections by endpoint
+       directly. *)
+    (* TODO Must also check whether the connection is closing. However, the
+       current pool never closes connections (!!!). *)
+    (* TODO Also should respect connection concurrency. Sequential connections
+       require the state to be `Idle. Pipeline connections require the state to
+       be not `Writing_request. Multiplexing connections can be in any state to
+       be reused. This code is currently hardcoded to do pipelining, which will
+       conservatively work on HTTP/2 multiplexing, it just won't take advantage
+       of the full concurrency available. *)
+    match Hashtbl.find_opt connections_by_endpoint endpoint with
+    | Some pooled_connection
+        when pooled_connection.state <> `Writing_request ->
+      pooled_connection.state <- `Writing_request;
+      pooled_connection.ref_count <- pooled_connection.ref_count + 1;
+      let connection = pooled_connection.create_result.connection
+      and id = pooled_connection.id in
+      Lwt.return (connection, id)
+    | _ ->
+      let%lwt create_result = create endpoint in
+      let id = !next_id in
+      next_id := Int64.succ !next_id;
+      let pooled_connection = {
+        create_result;
+        id;
+        created_at = Unix.time ();
+        state = `Writing_request;
+        ref_count = 1;
+        idle_since = 0.;
+        closing = false;
+      } in
+      Hashtbl.replace connections_by_id pooled_connection.id pooled_connection;
+      Hashtbl.add connections_by_endpoint endpoint pooled_connection;
+      Lwt.return (create_result.connection, pooled_connection.id)
+
+  and write_done id =
+    match Hashtbl.find_opt connections_by_id id with
+    | None ->
+      ()
+    | Some pooled_connection ->
+      pooled_connection.state <- `Reading_response_only
+      (* TODO In a future version where other writers may be queued, this should
+         wake up the head writer in the queue. *)
+
+  and all_done id _response =
+    match Hashtbl.find_opt connections_by_id id with
+    | None ->
+      ()
+    | Some pooled_connection ->
+      pooled_connection.ref_count <- pooled_connection.ref_count - 1;
+      if pooled_connection.ref_count = 0 then begin
+        pooled_connection.state <- `Idle;
+        pooled_connection.idle_since <- Unix.time ()
+      end
+
+  and error =
+    ignore
+    (* TODO Definitely not correct - this should put the connection into the
+       closing state and decrement its ref count. If the connection becomes idle
+       because of that, it can be closed right away. *)
+
+  in
+
+  connection_pool ~obtain ~write_done ~all_done ~error
+
+
+
+let default_connection_pool =
+  lazy (general_connection_pool ())
+
+
 
 (* TODO How should the host and port be represented? *)
 (* TODO Good error handling. *)
 (* TODO Probably change the default to one per-process pool with some
    configuration. *)
-let send ?(connection_pool = indefinite_keepalive) hyper_request =
+let send ?(connection_pool = Lazy.force default_connection_pool) hyper_request =
   let uri = Uri.of_string (Dream.target hyper_request) in
   let scheme = Uri.scheme uri |> Option.get
   and host = Uri.host uri |> Option.get
@@ -80,54 +163,6 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
      "neat" way - just a debuggable way. The port can be inferred from the
      scheme if it is missing. We are assuming http:// for now. *)
 
-  let host_key = (scheme, host, port) in
-
-  let%lwt connection =
-    match%lwt connection_pool.obtain host_key hyper_request with
-    | Some connection ->
-      Lwt.return connection
-    | None ->
-      let%lwt addresses =
-        Lwt_unix.getaddrinfo
-          host (string_of_int port) [Unix.(AI_FAMILY PF_INET)] in
-      let address = (List.hd addresses).Unix.ai_addr in
-      (* TODO Note: this can raise. *)
-
-      let socket = Lwt_unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in
-      let%lwt () = Lwt_unix.connect socket address in
-
-      match scheme with
-      | "https" ->
-        (* TODO The context needs to be created once per process, or a cache
-           should be used. *)
-        let context = Ssl.(create_context TLSv1_2 Client_context) in
-        (* TODO For WebSockets (wss://), the client should probably do SSL
-           without offering h2 by ALPN. Do any servers implement WebSockets over
-           HTTP/2? *)
-        Ssl.set_context_alpn_protos context ["h2"; "http/1.1"];
-        let%lwt ssl_socket = Lwt_ssl.ssl_connect socket context in
-        (* TODO Next line is pretty suspicious. *)
-        let underlying = Lwt_ssl.ssl_socket ssl_socket |> Option.get in
-        begin match Ssl.get_negotiated_alpn_protocol underlying with
-        | Some "h2" ->
-          (* TODO What about the error handler? *)
-          let%lwt connection =
-            H2_lwt_unix.Client.SSL.create_connection
-              ~error_handler:ignore
-              ssl_socket
-          in
-          Lwt.return (H2 connection)
-        | _ ->
-          let%lwt connection =
-            Httpaf_lwt_unix.Client.SSL.create_connection ssl_socket in
-          Lwt.return (SSL connection)
-        end
-        (* TODO Need to do server certificate validation here, etc. *)
-      | _ -> (* TODO Should be a check for http specifically. *)
-        let%lwt connection = Httpaf_lwt_unix.Client.create_connection socket in
-        Lwt.return (Cleartext connection)
-  in
-
   (* TODO These sorts of things can probably be done by passing the client
      modules in as first-class modules. The code might be not so clear to read,
      though. *)
@@ -138,6 +173,65 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
     | H2 connection -> H2_lwt_unix.Client.SSL.shutdown connection
   in
 
+  let create (scheme, host, port) =
+    let%lwt addresses =
+      Lwt_unix.getaddrinfo
+        host (string_of_int port) [Unix.(AI_FAMILY PF_INET)] in
+    let address = (List.hd addresses).Unix.ai_addr in
+    (* TODO Note: this can raise. *)
+
+    let socket = Lwt_unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in
+    let%lwt () = Lwt_unix.connect socket address in
+
+    match scheme with
+    | "https" ->
+      (* TODO The context needs to be created once per process, or a cache
+          should be used. *)
+      let context = Ssl.(create_context TLSv1_2 Client_context) in
+      (* TODO For WebSockets (wss://), the client should probably do SSL
+          without offering h2 by ALPN. Do any servers implement WebSockets over
+          HTTP/2? *)
+      Ssl.set_context_alpn_protos context ["h2"; "http/1.1"];
+      let%lwt ssl_socket = Lwt_ssl.ssl_connect socket context in
+      (* TODO Next line is pretty suspicious. *)
+      let underlying = Lwt_ssl.ssl_socket ssl_socket |> Option.get in
+      begin match Ssl.get_negotiated_alpn_protocol underlying with
+      | Some "h2" ->
+        (* TODO What about the error handler? *)
+        let%lwt connection =
+          H2_lwt_unix.Client.SSL.create_connection
+            ~error_handler:ignore
+            ssl_socket
+        in
+        Lwt.return {
+          connection = H2 connection;
+          destroy;
+          concurrency = `Multiplex;
+        }
+      | _ ->
+        let%lwt connection =
+          Httpaf_lwt_unix.Client.SSL.create_connection ssl_socket in
+        Lwt.return {
+          connection = SSL connection;
+          destroy;
+          concurrency = `Pipeline;
+        }
+      end
+      (* TODO Need to do server certificate validation here, etc. *)
+    | _ -> (* TODO Should be a check for http specifically. *)
+      let%lwt connection = Httpaf_lwt_unix.Client.create_connection socket in
+      Lwt.return {
+        connection = Cleartext connection;
+        destroy;
+        concurrency = `Pipeline;
+      }
+  in
+
+  let endpoint = (scheme, host, port) in
+
+  let%lwt (connection, id) =
+    connection_pool.obtain endpoint hyper_request create in
+
   let request connection =
     match connection with
     | Cleartext connection -> Httpaf_lwt_unix.Client.request connection
@@ -180,9 +274,8 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
           ~on_eof:(fun () ->
             Lwt.async (fun () ->
               let%lwt () = Dream.close_stream hyper_response in
-              connection_pool.return
-                host_key hyper_request hyper_response connection
-                destroy))
+              connection_pool.all_done id hyper_response;
+              Lwt.return_unit))
               (* TODO Make sure there is a way for the reader to abort reading
                  the stream and yet still get the socket closed. *)
           ~on_read:(fun buffer ~off ~len ->
@@ -224,7 +317,11 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
       buffer;
     send ()
 
-  and close _code = Httpaf.Body.Writer.close httpaf_request_body
+  and close _code =
+    Httpaf.Body.Writer.close httpaf_request_body;
+    (* TODO This should only be called if reading is not yet done. *)
+    connection_pool.write_done id
+
   and flush () = send ()
   and ping _buffer _offset _length = send ()
   and pong _buffer _offset _length = send ()
@@ -253,9 +350,8 @@ let send ?(connection_pool = indefinite_keepalive) hyper_request =
             ~on_eof:(fun () ->
               Lwt.async (fun () ->
                 let%lwt () = Dream.close_stream hyper_response in
-                connection_pool.return
-                  host_key hyper_request hyper_response connection
-                  destroy))
+                connection_pool.all_done id hyper_response;
+                Lwt.return_unit))
             ~on_read:(fun buffer ~off ~len ->
               Lwt.async (fun () ->
                 let%lwt () =
diff --git a/src/hyper.mli b/src/hyper.mli
index cbecfcbe..430a194b 100644
--- a/src/hyper.mli
+++ b/src/hyper.mli
@@ -2,7 +2,7 @@ type request = Dream.request
 type response = Dream.response
 type 'a promise = 'a Lwt.t
 
-type method_ = Dream.method_
+
 
 type connection_pool
 
@@ -10,16 +10,20 @@ val send :
   ?connection_pool:connection_pool ->
     request -> response promise
 
-(* TODO The issue with connections is that they depend on the underlying stack
-   implementation, which is best kept as abstract as possible. That means the
-   best way to do this is to make the connection type abstract to users, and to
-   make all connection setup code internal to Hyper. That means the pool
-   connection get function that is provided by the user will not create
-   connections, so it must return options. *)
+
+
 type connection
-type host
+type endpoint
+type create_result = {
+  connection : connection;
+  destroy : connection -> unit promise;
+  concurrency : [ `Sequence | `Pipeline | `Multiplex ];
+}
+type create = endpoint -> create_result promise
 
 val connection_pool :
-  obtain:(host -> request -> connection option promise) ->
-  return:(host -> request -> response -> connection -> (connection -> unit promise) -> unit promise) ->
+  obtain:(endpoint -> request -> create -> (connection * int64) promise) ->
+  write_done:(int64 -> unit) ->
+  all_done:(int64 -> response -> unit) ->
+  error:(int64 -> unit) ->
     connection_pool

From 457258e64ccbb3637c62913f9381def680cb6d4e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 9 Dec 2021 08:26:18 +0300
Subject: [PATCH 056/312] Client: sketch redirect loop

---
 example/w-client/client.ml | 10 +++---
 src/hyper.ml               | 63 +++++++++++++++++++++++++++++++++++++-
 2 files changed, 67 insertions(+), 6 deletions(-)

diff --git a/example/w-client/client.ml b/example/w-client/client.ml
index ae5b945f..c51f0b03 100644
--- a/example/w-client/client.ml
+++ b/example/w-client/client.ml
@@ -5,9 +5,9 @@ let send () =
   (* TODO This example is meant for running concurrently with example/w-echo. *)
   let request =
     Dream.request
-      ~method_:`POST
-      ~target:"http://127.0.0.1:8080/echo" "Good morning, world!"
-      ~headers:["Transfer-Encoding", "chunked"]
+      ~method_:`GET
+      ~target:"http://127.0.0.1:8080/abc" ""
+      (* ~headers:["Transfer-Encoding", "chunked"] *)
   in
 
   (* TODO Note that this wrapper is not necessary if using, for example,
@@ -20,7 +20,7 @@ let send () =
   let%lwt response = Hyper.send request in
 
   (* TODO Janky delay to give time for pipelining to intervene. *)
-  let%lwt () = Lwt_unix.sleep 5. in
+  (* let%lwt () = Lwt_unix.sleep 5. in *)
 
   let rec read () =
     (* TODO Use a higher-level reader once available. *)
@@ -46,7 +46,7 @@ let () =
   Lwt_main.run begin
     let first = send () in
     let second =
-      let%lwt () = Lwt_unix.sleep 1. in
+      (* let%lwt () = Lwt_unix.sleep 1. in *)
       send ()
     in
     let%lwt () = first in
diff --git a/src/hyper.ml b/src/hyper.ml
index dbbc9fc6..6674cc2f 100644
--- a/src/hyper.ml
+++ b/src/hyper.ml
@@ -150,7 +150,7 @@ let default_connection_pool =
 (* TODO Good error handling. *)
 (* TODO Probably change the default to one per-process pool with some
    configuration. *)
-let send ?(connection_pool = Lazy.force default_connection_pool) hyper_request =
+let send_one_request connection_pool hyper_request =
   let uri = Uri.of_string (Dream.target hyper_request) in
   let scheme = Uri.scheme uri |> Option.get
   and host = Uri.host uri |> Option.get
@@ -405,6 +405,67 @@ let send ?(connection_pool = Lazy.force default_connection_pool) hyper_request =
 
 
 
+(* TODO Add an option to redirect only to the same host? Or is this better
+   addressed by just letting the user do redirects manually, if needed? It's
+   probably best to expose some kind of filter function, because redirect
+   handling is slightly tricky (with body streams), and the user can benefit by
+   not having to write code themselves for this. *)
+(* TODO Expose a redirect cache callback for permanent redirects. *)
+let send ?(connection_pool = Lazy.force default_connection_pool) request =
+  let rec redirect_loop remaining request =
+    (* TODO Can save an allocation by binding the promise. *)
+    let%lwt response = send_one_request connection_pool request in
+    if remaining <= 0 then
+      (* TODO Log a warning here if the original redirect limit was not zero. *)
+      Lwt.return response
+    else
+      match Dream.status response with
+      | `Moved_Permanently
+      | `Found
+      | `See_Other
+      | `Temporary_Redirect
+      | `Permanent_Redirect ->
+        begin match Dream.header "Location" response with
+        | None ->
+          (* TODO Log a warning here. *)
+          Lwt.return response
+        | Some target ->
+          (* TODO For Moved Permanently, Temporary Redirect, Permanent Redirect,
+             warn if the server has read the request body, because we won't
+             easily be able to resend it. *)
+          (* TODO If requests become mutable, probably a new request should be
+             explicitly allocated. *)
+          (* TODO The URI in Location: might be absolute or not. *)
+          let request : Dream__pure.Inmost.request =
+            Obj.magic (request : Dream.request) in
+          let request =
+            {request with specific = {request.specific with target}} in
+          let request : Dream.request =
+            Obj.magic request in
+
+          let request =
+            match Dream.status response with
+            | `Found
+            | `See_Other ->
+              Dream.with_method_ `GET request
+              (* TODO Note that doing this for 302 is not correct, but is done
+                 to match established behavior on the Web. *)
+              (* TODO Should also substitute the body with an empty one here,
+                 and warn if the previous body is not closed (and close it). *)
+            | _ ->
+              request
+          in
+
+          redirect_loop (remaining - 1) request
+        end
+      | _ ->
+        Lwt.return response
+  in
+
+  redirect_loop 5 request
+
+
+
 (* TODO Which function should be the most fundamental function? Probably the
    request -> response runner. But it's probably not the most convenient for
    general usage.

From 38bdb60971a2b67874014fa8e188f4dae8801f63 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 9 Dec 2021 12:17:32 +0300
Subject: [PATCH 057/312] Client: sketch WebSocket client

---
 example/w-client/client.ml | 11 ++++---
 src/dune                   |  1 +
 src/http/http.ml           |  4 ++-
 src/hyper.ml               | 64 ++++++++++++++++++++++++++++++++++++--
 src/hyper.mli              |  2 +-
 src/vendor/dune            | 21 +++++++++++++
 6 files changed, 95 insertions(+), 8 deletions(-)

diff --git a/example/w-client/client.ml b/example/w-client/client.ml
index c51f0b03..eea8088a 100644
--- a/example/w-client/client.ml
+++ b/example/w-client/client.ml
@@ -6,7 +6,7 @@ let send () =
   let request =
     Dream.request
       ~method_:`GET
-      ~target:"http://127.0.0.1:8080/abc" ""
+      ~target:"ws://127.0.0.1:8080/websocket" ""
       (* ~headers:["Transfer-Encoding", "chunked"] *)
   in
 
@@ -22,6 +22,8 @@ let send () =
   (* TODO Janky delay to give time for pipelining to intervene. *)
   (* let%lwt () = Lwt_unix.sleep 5. in *)
 
+  let%lwt () = Dream.write response "Hello?" in
+
   let rec read () =
     (* TODO Use a higher-level reader once available. *)
     Dream.next
@@ -29,6 +31,7 @@ let send () =
       ~data:(fun buffer offset length _binary _fin ->
         Bigstringaf.substring buffer ~off:offset ~len:length
         |> print_string;
+        flush stdout;
         read ())
       ~close:(fun _code -> Lwt.wakeup_later notify_done ())
       ~flush:read
@@ -45,12 +48,12 @@ let () =
 
   Lwt_main.run begin
     let first = send () in
-    let second =
+    (* let second =
       (* let%lwt () = Lwt_unix.sleep 1. in *)
       send ()
-    in
+    in *)
     let%lwt () = first in
-    let%lwt () = second in
+    (* let%lwt () = second in *)
     Lwt.return ()
   end
 
diff --git a/src/dune b/src/dune
index 6e79896b..b1f2b371 100644
--- a/src/dune
+++ b/src/dune
@@ -34,5 +34,6 @@
   lwt.unix
   lwt_ssl
   ssl
+  dream.websocketaf-lwt-unix
  )
  (preprocess (pps lwt_ppx)))
diff --git a/src/http/http.ml b/src/http/http.ml
index f5332eac..410fd158 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -240,7 +240,9 @@ let websocket_handler user's_websocket_handler socket =
 
   let close code =
     if not !closed then begin
-      closed := true;
+      (* TODO Really need to work out the "close handshake" and how it is
+         exposed in the Stream API. *)
+      (* closed := true; *)
       Websocketaf.Wsd.close ~code:(`Other code) socket
     end
   in
diff --git a/src/hyper.ml b/src/hyper.ml
index 6674cc2f..1e853a19 100644
--- a/src/hyper.ml
+++ b/src/hyper.ml
@@ -9,6 +9,13 @@ type connection =
   | Cleartext of Httpaf_lwt_unix.Client.t
   | SSL of Httpaf_lwt_unix.Client.SSL.t
   | H2 of H2_lwt_unix.Client.SSL.t (* TODO No h2c support. *)
+  | WebSocket of Dream__pure.Stream.stream
+    (* TODO NOTE WebSocket connections over HTTP/1.1 are currently
+       single-use. We still go through the pool so as to give it the chance to
+       refuse the connection based on the number of other connections to the
+       same endpoint or host. The actual closing of WebSocket connections by the
+       pool is not yet implemented, so it might try to multiplex them. *)
+    (* TODO WebSockets over https and WebSockets over HTTP/2. *)
 
 type endpoint = string * string * int
 (* TODO But what should a host be? An unresolved hostname:port, or a resolved
@@ -34,7 +41,7 @@ type endpoint = string * string * int
 type create_result = {
   connection : connection;
   destroy : connection -> unit promise;
-  concurrency : [ `Sequence | `Pipeline | `Multiplex ];
+  concurrency : [ `Single_use | `Sequence | `Pipeline | `Multiplex ];
 }
 type create = endpoint -> create_result promise
 
@@ -171,6 +178,7 @@ let send_one_request connection_pool hyper_request =
     | Cleartext connection -> Httpaf_lwt_unix.Client.shutdown connection
     | SSL connection -> Httpaf_lwt_unix.Client.SSL.shutdown connection
     | H2 connection -> H2_lwt_unix.Client.SSL.shutdown connection
+    | WebSocket stream -> Dream__pure.Stream.close stream 1000; Lwt.return_unit
   in
 
   let create (scheme, host, port) =
@@ -218,13 +226,53 @@ let send_one_request connection_pool hyper_request =
         }
       end
       (* TODO Need to do server certificate validation here, etc. *)
-    | _ -> (* TODO Should be a check for http specifically. *)
+
+    | "http" ->
       let%lwt connection = Httpaf_lwt_unix.Client.create_connection socket in
       Lwt.return {
         connection = Cleartext connection;
         destroy;
         concurrency = `Pipeline;
       }
+
+    | "ws" ->
+      (* TODO The weboscket/af client interface seems pretty awkward to use in
+         this kind of control flow, since the input handlers need to be defined
+         immediately. However, the input handlers themselves are ill-conceinved,
+         since they are a partially push API (i.e. they lack full read flow
+         control). So hack something together, and await a better API. *)
+      let stream = ref None in
+      (* TODO The equality between server and client input handlers is not
+         exposed in the websocketaf API. *)
+      let websocket_handler =
+        Dream__http.Http.websocket_handler (fun the_stream ->
+          stream := Some the_stream;
+          Lwt.return_unit)
+      in
+      (* TODO Generate random nonces. *)
+      let%lwt connection =
+        Websocketaf_lwt_unix.Client.connect
+          ~nonce:"abcdefghijklmnop"
+          ~host
+          ~port
+          ~resource:path_and_query
+          ~error_handler:ignore
+          ~websocket_handler:(Obj.magic websocket_handler)
+          socket
+      in
+      ignore connection;
+      (* TODO Extremely questionable! The connection should just carry a stream
+         promise instead, that the handler can wait on later. *)
+      let%lwt () = Lwt_unix.sleep 1. in
+      Lwt.return {
+        connection = WebSocket (Option.get !stream);
+        destroy;
+        concurrency = `Single_use;
+      }
+
+    | _ ->
+      assert false
+      (* TODO Need a log and a more intelligent error here. *)
   in
 
   let endpoint = (scheme, host, port) in
@@ -238,6 +286,8 @@ let send_one_request connection_pool hyper_request =
     | SSL connection -> Httpaf_lwt_unix.Client.SSL.request connection
     | H2 _connection -> assert false
       (* TODO H2 is just a separate CF branch for now. *)
+    | WebSocket _stream -> assert false
+      (* TODO Ditto. *)
   in
 
   let response_promise, received_response = Lwt.wait () in
@@ -399,6 +449,16 @@ let send_one_request connection_pool hyper_request =
     in
 
     send ()
+
+  | WebSocket websocket ->
+    let hyper_response = Dream.response "" in
+
+    let hyper_response : Dream__pure.Inmost.response =
+      Obj.magic (hyper_response : Dream.response) in
+    let hyper_response = {hyper_response with body = websocket} in
+    let hyper_response : Dream.response = Obj.magic hyper_response in
+
+    Lwt.wakeup_later received_response hyper_response
   end;
 
   response_promise
diff --git a/src/hyper.mli b/src/hyper.mli
index 430a194b..747c1b49 100644
--- a/src/hyper.mli
+++ b/src/hyper.mli
@@ -17,7 +17,7 @@ type endpoint
 type create_result = {
   connection : connection;
   destroy : connection -> unit promise;
-  concurrency : [ `Sequence | `Pipeline | `Multiplex ];
+  concurrency : [ `Single_use | `Sequence | `Pipeline | `Multiplex ];
 }
 type create = endpoint -> create_result promise
 
diff --git a/src/vendor/dune b/src/vendor/dune
index 5810080b..9bd5fba3 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -81,6 +81,27 @@
    httpaf
    result)))
 
+(subdir websocketaf/lwt
+ (library
+  (name websocketaf_lwt)
+  (public_name dream.websocketaf-lwt)
+  (libraries
+   base64
+   digestif.ocaml
+   dream.gluten-lwt
+   lwt
+   dream.websocketaf)))
+
+(subdir websocketaf/lwt-unix
+ (library
+  (name websocketaf_lwt_unix)
+  (public_name dream.websocketaf-lwt-unix)
+  (libraries
+   faraday-lwt-unix
+   dream.gluten-lwt-unix
+   lwt.unix
+   dream.websocketaf-lwt)))
+
 
 
 (subdir httpaf/lib

From 1e1e7b395826be2b3383713cee59db0b9b4c219d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 11 Dec 2021 14:20:35 +0300
Subject: [PATCH 058/312] Streams: separate read and write ends

---
 src/http/http.ml                  |  13 +++-
 src/pure/inmost.ml                |  12 +--
 src/pure/stream.ml                | 118 +++++++++++++++++-------------
 src/pure/stream.mli               |  30 +++++---
 test/expect/pure/stream/stream.ml |  45 +++++++-----
 5 files changed, 130 insertions(+), 88 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index 410fd158..13b491b1 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -247,8 +247,9 @@ let websocket_handler user's_websocket_handler socket =
     end
   in
 
-  let websocket =
-    Stream.stream ~read ~write ~flush ~ping ~pong ~close in
+  let reader = Stream.reader ~read ~close
+  and writer = Stream.writer ~write ~flush ~ping ~pong ~close in
+  let websocket = Stream.stream reader writer in
 
   (* TODO Needs error handling like the top-level app has! *)
   Lwt.async (fun () ->
@@ -309,7 +310,9 @@ let wrap_handler
     let close _code =
       Httpaf.Body.Reader.close body in
     let body =
-      Stream.read_only ~read ~close in
+      Stream.reader ~read ~close in
+    let body =
+      Stream.stream body Stream.no_writer in
 
     let request : Dream.request =
       Dream.request_from_http
@@ -452,7 +455,9 @@ let wrap_handler_h2
     let close _code =
       H2.Body.close_reader body in
     let body =
-      Stream.read_only ~read ~close in
+      Stream.reader ~read ~close in
+    let body =
+      Stream.stream body Stream.no_writer in
 
     let request : Dream.request =
       Dream.request_from_http
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 3b757d84..58c71a78 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -306,14 +306,16 @@ let next =
 let with_body body message =
   let body =
     if String.length body = 0 then
-      Stream.empty
+      (* TODO Should probably preallocate this as a stream. *)
+      Stream.(stream empty no_writer)
     else
-      Stream.string body
+      Stream.(stream (string body) no_writer)
   in
   update {message with body}
 
 let with_stream message =
-  update {message with body = Stream.pipe ()}
+  let reader, writer = Stream.pipe () in
+  update {message with body = Stream.stream reader writer}
 
 (* TODO Need to expose FIN. However, it can't have any effect even on
    WebSockets, because websocket/af does not offer the ability to pass FIN. It
@@ -478,7 +480,7 @@ let request
       upload = initial_multipart_state ();
     };
     headers;
-    body = Stream.string body;
+    body = Stream.(stream (string body) no_writer);
     locals = Scope.empty;
     first = request;
     last = ref request;
@@ -505,7 +507,7 @@ let response
       websocket = None;
     };
     headers;
-    body = Stream.string body;
+    body = Stream.(stream (string body) no_writer);
     locals = Scope.empty;
     first = response;
     last = ref response;
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index ca382252..9b116b61 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -24,8 +24,12 @@ type write =
   close:(int -> unit) ->
     unit
 
-type stream = {
+type reader = {
   read : read;
+  close : int -> unit;
+}
+
+type writer = {
   write : buffer -> int -> int -> bool -> bool -> write;
   flush : write;
   ping : buffer -> int -> int -> write;
@@ -33,36 +37,47 @@ type stream = {
   close : int -> unit;
 }
 
-let stream ~read ~write ~flush ~ping ~pong ~close =
-  {
-    read;
-    write;
-    flush;
-    ping;
-    pong;
-    close;
-  }
+type stream = {
+  reader : reader;
+  writer : writer;
+}
 
-let read_only ~read ~close =
-  {
-    read;
-    write =
-      (fun _buffer _offset _length _binary _fin ~ok:_ ~close:_ ->
-        raise (Failure "write to a read-only stream"));
-    flush =
-      (fun ~ok:_ ~close:_ ->
-        raise (Failure "flush of a read-only stream"));
-    ping =
-      (fun _buffer _offset _length ~ok:_ ~close:_ ->
-        raise (Failure "ping on a read-only stream"));
-    pong =
-      (fun _buffer _offset _length ~ok:_ ~close:_ ->
-        raise (Failure "pong on a read-only stream"));
-    close;
-  }
+let stream reader writer =
+  {reader; writer}
+
+let no_reader = {
+  read =
+    (fun ~data:_ ~close:_ ~flush:_ ~ping:_ ~pong:_ ->
+      raise (Failure "read from a non-readable stream"));
+  close =
+    ignore;
+}
+
+let no_writer = {
+  write =
+    (fun _buffer _offset _length _binary _fin ~ok:_ ~close:_ ->
+      raise (Failure "write to a read-only stream"));
+  flush =
+    (fun ~ok:_ ~close:_ ->
+      raise (Failure "flush of a read-only stream"));
+  ping =
+    (fun _buffer _offset _length ~ok:_ ~close:_ ->
+      raise (Failure "ping on a read-only stream"));
+  pong =
+    (fun _buffer _offset _length ~ok:_ ~close:_ ->
+      raise (Failure "pong on a read-only stream"));
+  close =
+    ignore;
+}
+
+let reader ~read ~close =
+  {read; close}
+
+let writer ~write ~flush ~ping ~pong ~close =
+  {write; flush; ping; pong; close}
 
 let empty =
-  read_only
+  reader
     ~read:(fun ~data:_ ~close ~flush:_ ~ping:_ ~pong:_ -> close 1000)
     ~close:ignore
 
@@ -91,36 +106,27 @@ let string the_string =
       string_ref := None;
     in
 
-    read_only ~read ~close
+    reader ~read ~close
   end
 
-let duplex ~read ~write ~close =
-  {
-    read = read.read;
-    write = write.write;
-    flush = write.flush;
-    ping = write.ping;
-    pong = write.pong;
-    close;
-  }
-
 let read stream ~data ~close ~flush =
-  stream.read ~data ~close ~flush
+  stream.reader.read ~data ~close ~flush
 
 let close stream code =
-  stream.close code
+  stream.reader.close code;
+  stream.writer.close code
 
 let write stream buffer offset length binary fin ~ok ~close =
-  stream.write buffer offset length binary fin ~ok ~close
+  stream.writer.write buffer offset length binary fin ~ok ~close
 
 let flush stream ~ok ~close =
-  stream.flush ~ok ~close
+  stream.writer.flush ~ok ~close
 
 let ping stream buffer offset length ~ok ~close =
-  stream.ping buffer offset length ~ok ~close
+  stream.writer.ping buffer offset length ~ok ~close
 
 let pong stream buffer offset length ~ok ~close =
-  stream.pong buffer offset length ~ok ~close
+  stream.writer.pong buffer offset length ~ok ~close
 
 type pipe = {
   mutable state : [
@@ -330,13 +336,25 @@ let pipe () =
       close code
   in
 
-  {read; write; flush; close; ping; pong}
+  let reader = {
+    read;
+    close;
+  }
+  and writer = {
+    write;
+    flush;
+    ping;
+    pong;
+    close;
+  } in
+
+  (reader, writer)
 
 let read_convenience stream =
   let promise, resolver = Lwt.wait () in
 
   let rec loop () =
-    stream.read
+    stream.reader.read
       ~data:(fun buffer offset length _binary _fin ->
         Bigstringaf.sub buffer ~off:offset ~len:length
         |> Bigstringaf.to_string
@@ -349,7 +367,7 @@ let read_convenience stream =
       ~flush:loop
 
       ~ping:(fun buffer offset length ->
-        stream.pong
+        stream.writer.pong
           buffer offset length
           ~ok:loop
           ~close:(fun _code ->
@@ -373,7 +391,7 @@ let read_until_close stream =
   in
 
   let rec loop () =
-    stream.read
+    stream.reader.read
       ~data:(fun chunk offset chunk_length _binary _fin ->
         let new_length = !length + chunk_length in
 
@@ -395,7 +413,7 @@ let read_until_close stream =
       ~flush:loop
 
       ~ping:(fun buffer offset length ->
-        stream.pong buffer offset length ~ok:loop ~close)
+        stream.writer.pong buffer offset length ~ok:loop ~close)
 
       ~pong:(fun _buffer _offset _length ->
         ())
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index e89165e8..da070498 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -13,6 +13,10 @@ type 'a promise =
   'a Lwt.t
 (** Type abbreviation for promises. *)
 
+type reader
+
+type writer
+
 type stream
 (** This module's principal type, the {e stream}.
 
@@ -64,37 +68,39 @@ type write =
 (** A writing function. Pushes an event into a stream. May take additional
     arguments before [~ok]. *)
 
-val read_only : read:read -> close:(int -> unit) -> stream
+val reader : read:read -> close:(int -> unit) -> reader
 (** Creates a read-only stream from the given reader. [~close] is called in
     response to {!Stream.close}. It doesn't need to call {!Stream.close} again
     on the stream. It should be used to free any underlying resources. *)
 
-val empty : stream
+val empty : reader
 (** A read-only stream whose reading function always calls its [~close]
     callback. *)
 
-val string : string -> stream
+val string : string -> reader
 (** A read-only stream which calls its [~data] callback once with the contents
     of the given string, and then always calls [~close]. *)
 
-val pipe : unit -> stream
+val pipe : unit -> reader * writer
 (** A stream which matches each call of the reading function to one call of its
     writing functions. For example, calling {!Stream.flush} on a pipe will cause
     the reader to call its [~flush] callback. *)
 
-val duplex : read:stream -> write:stream -> close:(int -> unit) -> stream
-(** A stream whose reading functions behave like [~read], and whose writing
-    functions behave like [~write]. *)
-
-val stream :
-  read:read ->
+val writer :
   write:(buffer -> int -> int -> bool -> bool -> write) ->
   flush:write ->
   ping:(buffer -> int -> int -> write) ->
   pong:(buffer -> int -> int -> write) ->
   close:(int -> unit) ->
-    stream
-(** A general stream. *)
+    writer
+
+val no_reader : reader
+
+val no_writer : writer
+
+val stream : reader -> writer -> stream
+(* TODO Consider tupling the arguments, as that will make it easier to pass the
+   result of Stream.pipe. *)
 
 val close : stream -> int -> unit
 (** Closes the given stream. Causes a pending reader or writer to call its
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 0d042864..01db9a44 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -60,7 +60,7 @@ let pong_and_dump payload stream =
 (* Read-only streams. *)
 
 let%expect_test _ =
-  let stream = Stream.empty in
+  let stream = Stream.(stream empty no_writer) in
   read_and_dump stream;
   read_and_dump stream;
   Stream.close stream 1005;
@@ -71,13 +71,13 @@ let%expect_test _ =
     read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.empty in
+  let stream = Stream.(stream empty no_writer) in
   Stream.close stream 1005;
   read_and_dump stream;
   [%expect {| read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.string "foo" in
+  let stream = Stream.(stream (string "foo") no_writer) in
   read_and_dump stream;
   read_and_dump stream;
   read_and_dump stream;
@@ -90,7 +90,7 @@ let%expect_test _ =
     read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.string "" in
+  let stream = Stream.(stream (string "") no_writer) in
   read_and_dump stream;
   read_and_dump stream;
   [%expect {|
@@ -98,13 +98,13 @@ let%expect_test _ =
     read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.string "foo" in
+  let stream = Stream.(stream (string "foo") no_writer) in
   Stream.close stream 1005;
   read_and_dump stream;
   [%expect {| read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.empty in
+  let stream = Stream.(stream empty no_writer) in
   (try write_and_dump stream Bigstringaf.empty 0 0 false false
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
   (try flush_and_dump stream
@@ -124,7 +124,8 @@ let%expect_test _ =
 (* Pipe: double read. *)
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   read_and_dump stream;
   try read_and_dump stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
@@ -135,7 +136,8 @@ let%expect_test _ =
 (* Pipe: interactions between read and close. *)
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   read_and_dump stream;
   print_endline "checkpoint 1";
   Stream.close stream 1005;
@@ -151,7 +153,8 @@ let%expect_test _ =
     checkpoint 3 |}]
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   Stream.close stream 1005;
   read_and_dump stream;
   read_and_dump stream;
@@ -164,7 +167,8 @@ let%expect_test _ =
 (* Pipe: interactions between read and flush. *)
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   read_and_dump stream;
   print_endline "checkpoint 1";
   flush_and_dump stream;
@@ -191,7 +195,8 @@ let buffer =
   Bigstringaf.of_string ~off:0 ~len:3 "foo"
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   read_and_dump stream;
   print_endline "checkpoint 1";
   write_and_dump stream buffer 0 3 false true;
@@ -215,7 +220,8 @@ let%expect_test _ =
 (* Pipe: interactions between read and ping. *)
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   read_and_dump stream;
   print_endline "checkpoint 1";
   ping_and_dump "foo" stream;
@@ -239,7 +245,8 @@ let%expect_test _ =
 (* Pipe: interactions between read and pong. *)
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   read_and_dump stream;
   print_endline "checkpoint 1";
   pong_and_dump "foo" stream;
@@ -263,7 +270,8 @@ let%expect_test _ =
 (* Pipe: interactions between flush and close. *)
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   flush_and_dump stream;
   Stream.close stream 1005;
   flush_and_dump stream;
@@ -276,7 +284,8 @@ let%expect_test _ =
 (* Pipe: interactions between write and close. *)
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   write_and_dump stream buffer 0 3 true true;
   Stream.close stream 1005;
   write_and_dump stream buffer 0 3 true false;
@@ -289,7 +298,8 @@ let%expect_test _ =
 (* Pipe: interactions between ping and close. *)
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   ping_and_dump "foo" stream;
   Stream.close stream 1005;
   ping_and_dump "bar" stream;
@@ -302,7 +312,8 @@ let%expect_test _ =
 (* Pipe: interactions between pong and close. *)
 
 let%expect_test _ =
-  let stream = Stream.pipe () in
+  let reader, writer = Stream.pipe () in
+  let stream = Stream.stream reader writer in
   pong_and_dump "foo" stream;
   Stream.close stream 1005;
   pong_and_dump "bar" stream;

From faf81b4c2a86df2886c5581971d555a5332a618c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 11 Dec 2021 15:03:57 +0300
Subject: [PATCH 059/312] Streams: don't buffer even one write

---
 src/http/http.ml                  |  16 +++-
 src/pure/stream.ml                | 142 ++++++++++--------------------
 src/pure/stream.mli               |   3 +
 test/expect/pure/stream/stream.ml |  56 ++++--------
 4 files changed, 80 insertions(+), 137 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index 13b491b1..0ab7cfcd 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -180,6 +180,20 @@ let websocket_handler user's_websocket_handler socket =
 
   let bytes_since_flush = ref 0 in
 
+  (* TODO Not a correct implementation. Need to test moving the flush logic
+     from [write] to [ready], essentially. Alternatively, can use a pipe and its
+     logic for turning a writer into a reader. The memory impact is probably the
+     same. However, this is best done after the duplex stream clarification
+     commit, since that will change which streams do what in responses. It will
+     probably force usage of pipes anyway, so that will make piggy-backing on
+     pipes the natural solution. *)
+  let ready ~ok ~close =
+    if !closed then
+      close !close_code
+    else
+      ok ()
+  in
+
   let flush ~ok ~close =
     bytes_since_flush := 0;
     if !closed then
@@ -248,7 +262,7 @@ let websocket_handler user's_websocket_handler socket =
   in
 
   let reader = Stream.reader ~read ~close
-  and writer = Stream.writer ~write ~flush ~ping ~pong ~close in
+  and writer = Stream.writer ~ready ~write ~flush ~ping ~pong ~close in
   let websocket = Stream.stream reader writer in
 
   (* TODO Needs error handling like the top-level app has! *)
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 9b116b61..eb501bad 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -30,6 +30,7 @@ type reader = {
 }
 
 type writer = {
+  ready : write;
   write : buffer -> int -> int -> bool -> bool -> write;
   flush : write;
   ping : buffer -> int -> int -> write;
@@ -54,6 +55,9 @@ let no_reader = {
 }
 
 let no_writer = {
+  ready =
+    (fun ~ok:_ ~close:_ ->
+      raise (Failure "ready called on a read-only stream"));
   write =
     (fun _buffer _offset _length _binary _fin ~ok:_ ~close:_ ->
       raise (Failure "write to a read-only stream"));
@@ -73,8 +77,8 @@ let no_writer = {
 let reader ~read ~close =
   {read; close}
 
-let writer ~write ~flush ~ping ~pong ~close =
-  {write; flush; ping; pong; close}
+let writer ~ready ~write ~flush ~ping ~pong ~close =
+  {ready; write; flush; ping; pong; close}
 
 let empty =
   reader
@@ -116,6 +120,10 @@ let close stream code =
   stream.reader.close code;
   stream.writer.close code
 
+(* TODO Test this somehow with guards for early writing on a pipe. *)
+let ready stream ~ok ~close =
+  stream.writer.ready ~ok ~close
+
 let write stream buffer offset length binary fin ~ok ~close =
   stream.writer.write buffer offset length binary fin ~ok ~close
 
@@ -132,7 +140,6 @@ type pipe = {
   mutable state : [
     | `Idle
     | `Reader_waiting
-    | `Writer_waiting
     | `Closed of int
   ];
 
@@ -142,24 +149,10 @@ type pipe = {
   mutable read_ping_callback : buffer -> int -> int -> unit;
   mutable read_pong_callback : buffer -> int -> int -> unit;
 
-  mutable write_kind : [
-    | `Data
-    | `Flush
-    | `Ping
-    | `Pong
-  ];
-  mutable write_buffer : buffer;
-  mutable write_offset : int;
-  mutable write_length : int;
-  mutable write_binary : bool;
-  mutable write_fin : bool;
   mutable write_ok_callback : unit -> unit;
   mutable write_close_callback : int -> unit;
 }
 
-let dummy_buffer =
-  Bigstringaf.create 0
-
 let dummy_read_data_callback _buffer _offset _length _binary _fin =
   () [@coverage off]
 
@@ -174,7 +167,6 @@ let clean_up_reader_fields pipe =
   pipe.read_pong_callback <- dummy_ping_pong_callback
 
 let clean_up_writer_fields pipe =
-  pipe.write_buffer <- dummy_buffer;
   pipe.write_ok_callback <- ignore;
   pipe.write_close_callback <- ignore
 
@@ -188,12 +180,6 @@ let pipe () =
     read_ping_callback = dummy_ping_pong_callback;
     read_pong_callback = dummy_ping_pong_callback;
 
-    write_kind = `Data;
-    write_buffer = dummy_buffer;
-    write_offset = 0;
-    write_length = 0;
-    write_binary = true;
-    write_fin = false;
     write_ok_callback = ignore;
     write_close_callback = ignore;
   } in
@@ -207,50 +193,37 @@ let pipe () =
       internal.read_flush_callback <- flush;
       internal.read_ping_callback <- ping;
       internal.read_pong_callback <- pong;
-    | `Reader_waiting ->
-      raise (Failure "stream read: the previous read has not completed")
-    | `Writer_waiting ->
-      internal.state <- `Idle;
       let write_ok_callback = internal.write_ok_callback in
-      let buffer = internal.write_buffer in
       clean_up_writer_fields internal;
-      begin match internal.write_kind with
-      | `Data ->
-        data
-          buffer
-          internal.write_offset
-          internal.write_length
-          internal.write_binary
-          internal.write_fin
-      | `Flush -> flush ()
-      | `Ping -> ping buffer internal.write_offset internal.write_length
-      | `Pong -> pong buffer internal.write_offset internal.write_length
-      end;
       write_ok_callback ()
+    | `Reader_waiting ->
+      raise (Failure "stream read: the previous read has not completed")
     | `Closed code ->
       close code
   in
 
-  let write buffer offset length binary fin ~ok ~close =
+  let ready ~ok ~close =
     match internal.state with
     | `Idle ->
-      internal.state <- `Writer_waiting;
-      internal.write_kind <- `Data;
-      internal.write_buffer <- buffer;
-      internal.write_offset <- offset;
-      internal.write_length <- length;
-      internal.write_binary <- binary;
-      internal.write_fin <- fin;
       internal.write_ok_callback <- ok;
       internal.write_close_callback <- close
+    | `Reader_waiting ->
+      ok ()
+    | `Closed code ->
+      close code
+  in
+
+  let write buffer offset length binary fin ~ok ~close =
+    match internal.state with
+    | `Idle ->
+      raise (Failure "stream write: the stream is not ready")
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_data_callback = internal.read_data_callback in
       clean_up_reader_fields internal;
+      internal.write_ok_callback <- ok;
+      internal.write_close_callback <- close;
       read_data_callback buffer offset length binary fin;
-      ok ()
-    | `Writer_waiting ->
-      raise (Failure "stream write: the previous write has not completed")
     | `Closed code ->
       close code
   in
@@ -258,17 +231,15 @@ let pipe () =
   let close code =
     match internal.state with
     | `Idle ->
-      internal.state <- `Closed code
+      internal.state <- `Closed code;
+      let write_close_callback = internal.write_close_callback in
+      clean_up_writer_fields internal;
+      write_close_callback code
     | `Reader_waiting ->
       internal.state <- `Closed code;
       let read_close_callback = internal.read_close_callback in
       clean_up_reader_fields internal;
       read_close_callback code
-    | `Writer_waiting ->
-      internal.state <- `Closed code;
-      let write_close_callback = internal.write_close_callback in
-      clean_up_writer_fields internal;
-      write_close_callback code
     | `Closed _code ->
       ()
   in
@@ -276,18 +247,14 @@ let pipe () =
   let flush ~ok ~close =
     match internal.state with
     | `Idle ->
-      internal.state <- `Writer_waiting;
-      internal.write_kind <- `Flush;
-      internal.write_ok_callback <- ok;
-      internal.write_close_callback <- close
+      raise (Failure "stream flush: the previous write has not completed")
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_flush_callback = internal.read_flush_callback in
       clean_up_reader_fields internal;
-      read_flush_callback ();
-      ok ()
-    | `Writer_waiting ->
-      raise (Failure "stream flush: the previous write has not completed")
+      internal.write_ok_callback <- ok;
+      internal.write_close_callback <- close;
+      read_flush_callback ()
     | `Closed code ->
       close code
   in
@@ -295,21 +262,14 @@ let pipe () =
   let ping buffer offset length ~ok ~close =
     match internal.state with
     | `Idle ->
-      internal.state <- `Writer_waiting;
-      internal.write_kind <- `Ping;
-      internal.write_buffer <- buffer;
-      internal.write_offset <- offset;
-      internal.write_length <- length;
-      internal.write_ok_callback <- ok;
-      internal.write_close_callback <- close
+      raise (Failure "stream ping: the previous write has not completed")
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_ping_callback = internal.read_ping_callback in
       clean_up_reader_fields internal;
-      read_ping_callback buffer offset length;
-      ok ()
-    | `Writer_waiting ->
-      raise (Failure "stream ping: the previous write has not completed")
+      internal.write_ok_callback <- ok;
+      internal.write_close_callback <- close;
+      read_ping_callback buffer offset length
     | `Closed code ->
       close code
   in
@@ -317,21 +277,14 @@ let pipe () =
   let pong buffer offset length ~ok ~close =
     match internal.state with
     | `Idle ->
-      internal.state <- `Writer_waiting;
-      internal.write_kind <- `Pong;
-      internal.write_buffer <- buffer;
-      internal.write_offset <- offset;
-      internal.write_length <- length;
-      internal.write_ok_callback <- ok;
-      internal.write_close_callback <- close
+      raise (Failure "stream pong: the previous write has not completed")
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_pong_callback = internal.read_pong_callback in
       clean_up_reader_fields internal;
-      read_pong_callback buffer offset length;
-      ok ()
-    | `Writer_waiting ->
-      raise (Failure "stream pong: the previous write has not completed")
+      internal.write_ok_callback <- ok;
+      internal.write_close_callback <- close;
+      read_pong_callback buffer offset length
     | `Closed code ->
       close code
   in
@@ -341,6 +294,7 @@ let pipe () =
     close;
   }
   and writer = {
+    ready;
     write;
     flush;
     ping;
@@ -352,6 +306,7 @@ let pipe () =
 
 let read_convenience stream =
   let promise, resolver = Lwt.wait () in
+  let close _code = Lwt.wakeup_later resolver None in
 
   let rec loop () =
     stream.reader.read
@@ -361,17 +316,12 @@ let read_convenience stream =
         |> Option.some
         |> Lwt.wakeup_later resolver)
 
-      ~close:(fun _code ->
-        Lwt.wakeup_later resolver None)
+      ~close
 
       ~flush:loop
 
       ~ping:(fun buffer offset length ->
-        stream.writer.pong
-          buffer offset length
-          ~ok:loop
-          ~close:(fun _code ->
-            Lwt.wakeup_later resolver None))
+        stream.writer.pong ~close buffer offset length ~ok:loop)
 
       ~pong:(fun _buffer _offset _length ->
         ())
@@ -413,7 +363,7 @@ let read_until_close stream =
       ~flush:loop
 
       ~ping:(fun buffer offset length ->
-        stream.writer.pong buffer offset length ~ok:loop ~close)
+        stream.writer.pong buffer offset length ~close ~ok:loop)
 
       ~pong:(fun _buffer _offset _length ->
         ())
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index da070498..870542e5 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -87,6 +87,7 @@ val pipe : unit -> reader * writer
     the reader to call its [~flush] callback. *)
 
 val writer :
+  ready:write ->
   write:(buffer -> int -> int -> bool -> bool -> write) ->
   flush:write ->
   ping:(buffer -> int -> int -> write) ->
@@ -118,6 +119,8 @@ val read_until_close : stream -> string promise
 (** Reads a stream completely until [~close], and accumulates the data into a
     string. *)
 
+val ready : stream -> write
+
 val write : stream -> buffer -> int -> int -> bool -> bool -> write
 (** A writing function that sends a data buffer on the given stream. No more
     writing functions should be called on the stream until this function calls
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 01db9a44..e1a8215d 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -172,20 +172,16 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   flush_and_dump stream;
-  flush_and_dump stream;
-  print_endline "checkpoint 2";
+  (try flush_and_dump stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn));
   read_and_dump stream;
   flush_and_dump stream;
-  try flush_and_dump stream
-  with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
     read: flush
+    (Failure "stream flush: the previous write has not completed")
     flush: ok
-    checkpoint 2
-    read: flush
-    flush: ok
-    (Failure "stream flush: the previous write has not completed") |}]
+    read: flush |}]
 
 
 
@@ -200,20 +196,16 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   write_and_dump stream buffer 0 3 false true;
-  write_and_dump stream buffer 1 1 true false;
-  print_endline "checkpoint 2";
+  (try write_and_dump stream buffer 1 1 true false
+  with Failure _ as exn -> print_endline (Printexc.to_string exn));
   read_and_dump stream;
   write_and_dump stream buffer 0 3 true true;
-  try write_and_dump stream buffer 0 3 false false
-  with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
     read: data: BINARY=false FIN=true foo
+    (Failure "stream write: the stream is not ready")
     write: ok
-    checkpoint 2
-    read: data: BINARY=true FIN=false o
-    write: ok
-    (Failure "stream write: the previous write has not completed") |}]
+    read: data: BINARY=true FIN=true foo |}]
 
 
 
@@ -225,20 +217,16 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   ping_and_dump "foo" stream;
-  ping_and_dump "bar" stream;
-  print_endline "checkpoint 2";
+  (try ping_and_dump "bar" stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn));
   read_and_dump stream;
   ping_and_dump "baz" stream;
-  try ping_and_dump "quux" stream
-  with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
     read: ping: foo
+    (Failure "stream ping: the previous write has not completed")
     ping: ok
-    checkpoint 2
-    read: ping: bar
-    ping: ok
-    (Failure "stream ping: the previous write has not completed") |}]
+    read: ping: baz |}]
 
 
 
@@ -250,20 +238,16 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   pong_and_dump "foo" stream;
-  pong_and_dump "bar" stream;
-  print_endline "checkpoint 2";
+  (try pong_and_dump "bar" stream
+  with Failure _ as exn -> print_endline (Printexc.to_string exn));
   read_and_dump stream;
   pong_and_dump "baz" stream;
-  try pong_and_dump "quux" stream
-  with Failure _ as exn -> print_endline (Printexc.to_string exn);
   [%expect {|
     checkpoint 1
     read: pong: foo
+    (Failure "stream pong: the previous write has not completed")
     pong: ok
-    checkpoint 2
-    read: pong: bar
-    pong: ok
-    (Failure "stream pong: the previous write has not completed") |}]
+    read: pong: baz |}]
 
 
 
@@ -272,11 +256,9 @@ let%expect_test _ =
 let%expect_test _ =
   let reader, writer = Stream.pipe () in
   let stream = Stream.stream reader writer in
-  flush_and_dump stream;
   Stream.close stream 1005;
   flush_and_dump stream;
   [%expect {|
-    flush: close: CODE=1005
     flush: close: CODE=1005 |}]
 
 
@@ -286,11 +268,9 @@ let%expect_test _ =
 let%expect_test _ =
   let reader, writer = Stream.pipe () in
   let stream = Stream.stream reader writer in
-  write_and_dump stream buffer 0 3 true true;
   Stream.close stream 1005;
   write_and_dump stream buffer 0 3 true false;
   [%expect {|
-    write: close: CODE=1005
     write: close: CODE=1005 |}]
 
 
@@ -300,11 +280,9 @@ let%expect_test _ =
 let%expect_test _ =
   let reader, writer = Stream.pipe () in
   let stream = Stream.stream reader writer in
-  ping_and_dump "foo" stream;
   Stream.close stream 1005;
   ping_and_dump "bar" stream;
   [%expect {|
-    ping: close: CODE=1005
     ping: close: CODE=1005 |}]
 
 
@@ -314,9 +292,7 @@ let%expect_test _ =
 let%expect_test _ =
   let reader, writer = Stream.pipe () in
   let stream = Stream.stream reader writer in
-  pong_and_dump "foo" stream;
   Stream.close stream 1005;
   pong_and_dump "bar" stream;
   [%expect {|
-    pong: close: CODE=1005
     pong: close: CODE=1005 |}]

From 4afbe1904619daaae1f992d6bceb1e4f17c571f2 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 11 Dec 2021 16:20:43 +0300
Subject: [PATCH 060/312] Streams: tweak writer continuation order, labels

---
 src/http/http.ml                  | 13 +++++----
 src/pure/inmost.ml                | 16 +++++------
 src/pure/stream.ml                | 46 +++++++++++++++----------------
 src/pure/stream.mli               |  2 +-
 test/expect/pure/stream/stream.ml | 16 +++++------
 5 files changed, 47 insertions(+), 46 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index 0ab7cfcd..092342c3 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -187,14 +187,15 @@ let websocket_handler user's_websocket_handler socket =
      commit, since that will change which streams do what in responses. It will
      probably force usage of pipes anyway, so that will make piggy-backing on
      pipes the natural solution. *)
-  let ready ~ok ~close =
+  (* TODO Can probably also remove val Stream.writer at that point. *)
+  let ready ~close ok =
     if !closed then
       close !close_code
     else
       ok ()
   in
 
-  let flush ~ok ~close =
+  let flush ~close ok =
     bytes_since_flush := 0;
     if !closed then
       close !close_code
@@ -202,7 +203,7 @@ let websocket_handler user's_websocket_handler socket =
       Websocketaf.Wsd.flushed socket ok
   in
 
-  let write buffer offset length binary fin ~ok ~close =
+  let write buffer offset length binary fin ~close ok =
     (* Until https://github.com/anmonteiro/websocketaf/issues/33. *)
     if not fin then
       websocket_log.error (fun log ->
@@ -214,13 +215,13 @@ let websocket_handler user's_websocket_handler socket =
       Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
       bytes_since_flush := !bytes_since_flush + length;
       if !bytes_since_flush >= 4096 then
-        flush ~ok ~close
+        flush ~close ok
       else
         ok ()
     end
   in
 
-  let ping _buffer _offset length ~ok ~close =
+  let ping _buffer _offset length ~close ok =
     if length > 125 then
       raise (Failure "Ping payload cannot exceed 125 bytes");
     (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
@@ -235,7 +236,7 @@ let websocket_handler user's_websocket_handler socket =
     end
   in
 
-  let pong _buffer _offset length ~ok ~close =
+  let pong _buffer _offset length ~close ok =
     (* TODO Is there any way for the peer to send a ping payload with more than
        125 bytes, forcing a too-large pong and an exception? *)
     if length > 125 then
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 58c71a78..9705de59 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -329,8 +329,8 @@ let write message chunk =
   Stream.write
     message.body
     buffer 0 length true false
-    ~ok:(Lwt.wakeup_later resolver)
-    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file);
+    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
+    (Lwt.wakeup_later resolver);
   promise
 
 let write_buffer ?(offset = 0) ?length message chunk =
@@ -346,8 +346,8 @@ let write_buffer ?(offset = 0) ?length message chunk =
   Stream.write
     message.body
     chunk offset length true false
-    ~ok:(Lwt.wakeup_later resolver)
-    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file);
+    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
+    (Lwt.wakeup_later resolver);
   promise
 
 (* TODO How are remote closes actually handled? There is no way for http/af to
@@ -356,8 +356,8 @@ let flush message =
   let promise, resolver = Lwt.wait () in
   Stream.flush
     message.body
-    ~ok:(Lwt.wakeup_later resolver)
-    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file);
+    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
+    (Lwt.wakeup_later resolver);
   promise
 
 let close_stream message =
@@ -576,8 +576,8 @@ let send ?kind websocket message =
     websocket
     (Bigstringaf.of_string ~off:0 ~len:length message) 0 length
     binary true
-    ~ok:(Lwt.wakeup_later resolver)
-    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file);
+    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
+    (Lwt.wakeup_later resolver);
   (* TODO The API will likely have to change to report closing. *)
   promise
 
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index eb501bad..ee76347a 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -20,8 +20,8 @@ type read =
     unit
 
 type write =
-  ok:(unit -> unit) ->
   close:(int -> unit) ->
+  (unit -> unit) ->
     unit
 
 type reader = {
@@ -56,19 +56,19 @@ let no_reader = {
 
 let no_writer = {
   ready =
-    (fun ~ok:_ ~close:_ ->
+    (fun ~close:_ _ok ->
       raise (Failure "ready called on a read-only stream"));
   write =
-    (fun _buffer _offset _length _binary _fin ~ok:_ ~close:_ ->
+    (fun _buffer _offset _length _binary _fin ~close:_ _ok ->
       raise (Failure "write to a read-only stream"));
   flush =
-    (fun ~ok:_ ~close:_ ->
+    (fun ~close:_ _ok ->
       raise (Failure "flush of a read-only stream"));
   ping =
-    (fun _buffer _offset _length ~ok:_ ~close:_ ->
+    (fun _buffer _offset _length ~close:_ _ok ->
       raise (Failure "ping on a read-only stream"));
   pong =
-    (fun _buffer _offset _length ~ok:_ ~close:_ ->
+    (fun _buffer _offset _length ~close:_ _ok ->
       raise (Failure "pong on a read-only stream"));
   close =
     ignore;
@@ -121,20 +121,20 @@ let close stream code =
   stream.writer.close code
 
 (* TODO Test this somehow with guards for early writing on a pipe. *)
-let ready stream ~ok ~close =
-  stream.writer.ready ~ok ~close
+let ready stream ~close ok =
+  stream.writer.ready ~close ok
 
-let write stream buffer offset length binary fin ~ok ~close =
-  stream.writer.write buffer offset length binary fin ~ok ~close
+let write stream buffer offset length binary fin ~close ok =
+  stream.writer.write buffer offset length binary fin ~close ok
 
-let flush stream ~ok ~close =
-  stream.writer.flush ~ok ~close
+let flush stream ~close ok =
+  stream.writer.flush ~close ok
 
-let ping stream buffer offset length ~ok ~close =
-  stream.writer.ping buffer offset length ~ok ~close
+let ping stream buffer offset length ~close ok =
+  stream.writer.ping buffer offset length ~close ok
 
-let pong stream buffer offset length ~ok ~close =
-  stream.writer.pong buffer offset length ~ok ~close
+let pong stream buffer offset length ~close ok =
+  stream.writer.pong buffer offset length ~close ok
 
 type pipe = {
   mutable state : [
@@ -202,7 +202,7 @@ let pipe () =
       close code
   in
 
-  let ready ~ok ~close =
+  let ready ~close ok =
     match internal.state with
     | `Idle ->
       internal.write_ok_callback <- ok;
@@ -213,7 +213,7 @@ let pipe () =
       close code
   in
 
-  let write buffer offset length binary fin ~ok ~close =
+  let write buffer offset length binary fin ~close ok =
     match internal.state with
     | `Idle ->
       raise (Failure "stream write: the stream is not ready")
@@ -244,7 +244,7 @@ let pipe () =
       ()
   in
 
-  let flush ~ok ~close =
+  let flush ~close ok =
     match internal.state with
     | `Idle ->
       raise (Failure "stream flush: the previous write has not completed")
@@ -259,7 +259,7 @@ let pipe () =
       close code
   in
 
-  let ping buffer offset length ~ok ~close =
+  let ping buffer offset length ~close ok =
     match internal.state with
     | `Idle ->
       raise (Failure "stream ping: the previous write has not completed")
@@ -274,7 +274,7 @@ let pipe () =
       close code
   in
 
-  let pong buffer offset length ~ok ~close =
+  let pong buffer offset length ~close ok =
     match internal.state with
     | `Idle ->
       raise (Failure "stream pong: the previous write has not completed")
@@ -321,7 +321,7 @@ let read_convenience stream =
       ~flush:loop
 
       ~ping:(fun buffer offset length ->
-        stream.writer.pong ~close buffer offset length ~ok:loop)
+        stream.writer.pong buffer offset length ~close loop)
 
       ~pong:(fun _buffer _offset _length ->
         ())
@@ -363,7 +363,7 @@ let read_until_close stream =
       ~flush:loop
 
       ~ping:(fun buffer offset length ->
-        stream.writer.pong buffer offset length ~close ~ok:loop)
+        stream.writer.pong buffer offset length ~close loop)
 
       ~pong:(fun _buffer _offset _length ->
         ())
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 870542e5..23278e11 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -62,8 +62,8 @@ type read =
     to which event occurs next on the stream. *)
 
 type write =
-  ok:(unit -> unit) ->
   close:(int -> unit) ->
+  (unit -> unit) ->
     unit
 (** A writing function. Pushes an event into a stream. May take additional
     arguments before [~ok]. *)
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index e1a8215d..edd1f877 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -27,33 +27,33 @@ let read_and_dump stream =
 
 let flush_and_dump stream =
   Stream.flush stream
-    ~ok:(fun () ->
-      print_endline "flush: ok")
     ~close:(fun code ->
       Printf.printf "flush: close: CODE=%i\n" code)
+    (fun () ->
+      print_endline "flush: ok")
 
 let write_and_dump stream buffer offset length binary fin =
   Stream.write stream buffer offset length binary fin
-    ~ok:(fun () ->
-      print_endline "write: ok")
     ~close:(fun code ->
       Printf.printf "write: close: CODE=%i\n" code)
+    (fun () ->
+      print_endline "write: ok")
 
 let ping_and_dump payload stream =
   let length = String.length payload in
   Stream.ping stream (Bigstringaf.of_string ~off:0 ~len:length payload) 0 length
-    ~ok:(fun () ->
-      print_endline "ping: ok")
     ~close:(fun code ->
       Printf.printf "ping: close: CODE=%i\n" code)
+    (fun () ->
+      print_endline "ping: ok")
 
 let pong_and_dump payload stream =
   let length = String.length payload in
   Stream.pong stream (Bigstringaf.of_string ~off:0 ~len:length payload) 0 length
-    ~ok:(fun () ->
-      print_endline "pong: ok")
     ~close:(fun code ->
       Printf.printf "pong: close: CODE=%i\n" code)
+    (fun () ->
+      print_endline "pong: ok")
 
 
 

From f69b95644a237be0aa3c9d3c6e29a7be32a5dbdb Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 11 Dec 2021 17:13:46 +0300
Subject: [PATCH 061/312] Streams: split into client and server streams

---
 src/http/adapt.ml  |  2 +-
 src/http/http.ml   |  7 +++++++
 src/pure/inmost.ml | 50 ++++++++++++++++++++++++++++++++++------------
 3 files changed, 45 insertions(+), 14 deletions(-)

diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index 372d5860..bda3685a 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -29,7 +29,7 @@ let forward_body_general
   let bytes_since_flush = ref 0 in
 
   let rec send () =
-    Dream.body_stream response
+    Dream.client_stream response
     |> fun stream ->
       Stream.read
         stream
diff --git a/src/http/http.ml b/src/http/http.ml
index 092342c3..8f4812e8 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -265,6 +265,13 @@ let websocket_handler user's_websocket_handler socket =
   let reader = Stream.reader ~read ~close
   and writer = Stream.writer ~ready ~write ~flush ~ping ~pong ~close in
   let websocket = Stream.stream reader writer in
+  (* TODO Change WebSockets to use two pipes in the response body, rather than
+     a weird stream hanging out in the heap. That way, a client and server can
+     immediately communicate with each other if they are in process, without the
+     need to interpet the WebSocket response with an HTTP layer. This will also
+     simplify the WebSocket writing code, as this HTTP adapter code will read
+     from a pipe rather than implement a writer from scratch. At that point,
+     Stream.writer can be removed from stream.mli. *)
 
   (* TODO Needs error handling like the top-level app has! *)
   Lwt.async (fun () ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 9705de59..7ca53e6d 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -45,7 +45,8 @@ and response = outgoing message
 and 'a message = {
   specific : 'a;
   headers : (string * string) list;
-  body : Stream.stream;
+  client_stream : Stream.stream;
+  server_stream : Stream.stream;
   locals : Scope.t;
   first : 'a message;
   last : 'a message ref;
@@ -284,14 +285,20 @@ let cookie name request =
   try Some (cookie_exn name request)
   with Not_found -> None *)
 
+(* TODO NOTE On the client, this will read the client stream until close. *)
 let body message =
-  Stream.read_until_close message.body
+  Stream.read_until_close message.server_stream
 
 let read message =
-  Stream.read_convenience message.body
+  Stream.read_convenience message.server_stream
 
 let body_stream message =
-  message.body
+  message.server_stream
+
+(* TODO Temporary internal function so that the HTTP layer can read response
+   streams. *)
+let client_stream message =
+  message.client_stream
 
 (* TODO Pending the dream.mli interface reorganization for the new stream
    API. *)
@@ -303,7 +310,16 @@ let next =
    are setting a new body. Indeed, there might be a concurrent read going on.
    That read should not override the new body. So let it mutate the old
    request's ref; we generate a new request with a new body ref. *)
+(* TODO NOTE In Dream, this should operate on response server_streams. In Hyper,
+   it should operate on request client_streams, although there is no very good
+   reason why it can't operate on general messages, which might be useful in
+   middlewares that preprocess requests on the server and postprocess responses
+   on the client. Or.... shouldn't this affect the client stream on the server,
+   replacing its read end? *)
 let with_body body message =
+  (* TODO This is partially redundant with a length check in Stream.string, but
+     that check is no longer useful as it prevents allocation of only a reader,
+     rather than a complete stream. *)
   let body =
     if String.length body = 0 then
       (* TODO Should probably preallocate this as a stream. *)
@@ -311,11 +327,15 @@ let with_body body message =
     else
       Stream.(stream (string body) no_writer)
   in
-  update {message with body}
+  update {message with server_stream = body}
 
+(* TODO The critical piece: the pipe should be split between the client and
+   server streams. adapt.ml should be reading from the client stream. *)
 let with_stream message =
   let reader, writer = Stream.pipe () in
-  update {message with body = Stream.stream reader writer}
+  let client_stream = Stream.stream reader Stream.no_writer in
+  let server_stream = Stream.stream Stream.no_reader writer in
+  update {message with client_stream; server_stream}
 
 (* TODO Need to expose FIN. However, it can't have any effect even on
    WebSockets, because websocket/af does not offer the ability to pass FIN. It
@@ -327,7 +347,7 @@ let write message chunk =
   let buffer = Bigstringaf.of_string ~off:0 ~len:length chunk in
   (* TODO Better handling of close? But it can't even occur with http/af. *)
   Stream.write
-    message.body
+    message.server_stream
     buffer 0 length true false
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
     (Lwt.wakeup_later resolver);
@@ -344,7 +364,7 @@ let write_buffer ?(offset = 0) ?length message chunk =
   (* TODO As above, properly expose FIN. *)
   (* TODO Also expose binary/text. *)
   Stream.write
-    message.body
+    message.server_stream
     chunk offset length true false
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
     (Lwt.wakeup_later resolver);
@@ -355,13 +375,13 @@ let write_buffer ?(offset = 0) ?length message chunk =
 let flush message =
   let promise, resolver = Lwt.wait () in
   Stream.flush
-    message.body
+    message.server_stream
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
     (Lwt.wakeup_later resolver);
   promise
 
 let close_stream message =
-  Stream.close message.body 1000;
+  Stream.close message.server_stream 1000;
   Lwt.return_unit
 
 (* TODO Rename. *)
@@ -439,7 +459,8 @@ let request_from_http
       upload = initial_multipart_state ();
     };
     headers;
-    body;
+    client_stream = Stream.(stream no_reader no_writer);
+    server_stream = body;
     locals = Scope.empty;
     first = request; (* TODO LATER What OCaml version is required for this? *)
     last = ref request;
@@ -480,7 +501,8 @@ let request
       upload = initial_multipart_state ();
     };
     headers;
-    body = Stream.(stream (string body) no_writer);
+    client_stream = Stream.(stream (string body) no_writer);
+    server_stream = Stream.(stream no_reader no_writer);
     locals = Scope.empty;
     first = request;
     last = ref request;
@@ -507,7 +529,9 @@ let response
       websocket = None;
     };
     headers;
-    body = Stream.(stream (string body) no_writer);
+    client_stream = Stream.(stream (string body) no_writer);
+    server_stream = Stream.(stream no_reader no_writer);
+    (* TODO This fully dead stream should be preallocated. *)
     locals = Scope.empty;
     first = response;
     last = ref response;

From 1e748506081272aa1e6604130e3c987d4f213710 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 11 Dec 2021 19:26:05 +0300
Subject: [PATCH 062/312] Move the client to its own repository

---
 example/w-client/client.ml    |  60 ----
 example/w-client/dune         |   6 -
 example/w-client/dune-project |   1 -
 hyper.opam                    |  11 -
 src/dune                      |  18 --
 src/hyper.ml                  | 542 ----------------------------------
 src/hyper.mli                 |  29 --
 7 files changed, 667 deletions(-)
 delete mode 100644 example/w-client/client.ml
 delete mode 100644 example/w-client/dune
 delete mode 100644 example/w-client/dune-project
 delete mode 100644 hyper.opam
 delete mode 100644 src/hyper.ml
 delete mode 100644 src/hyper.mli

diff --git a/example/w-client/client.ml b/example/w-client/client.ml
deleted file mode 100644
index eea8088a..00000000
--- a/example/w-client/client.ml
+++ /dev/null
@@ -1,60 +0,0 @@
-let send () =
-  (* TODO Eventually replace this by the higher-level wrappers that Hyper will
-     offer. Move the explicit-request call into a proxy example, that forwards
-     Dream requests directly to Hyper.send. *)
-  (* TODO This example is meant for running concurrently with example/w-echo. *)
-  let request =
-    Dream.request
-      ~method_:`GET
-      ~target:"ws://127.0.0.1:8080/websocket" ""
-      (* ~headers:["Transfer-Encoding", "chunked"] *)
-  in
-
-  (* TODO Note that this wrapper is not necessary if using, for example,
-     Dream.run. Create a proxy example that has both a Dream server and a Hyper
-     client, and therefore has no explicit Lwt_main.run. *)
-  let done_, notify_done = Lwt.wait () in
-
-  (* TODO Add some kind of primitive error handling, both for network errors
-     and for error responses. *)
-  let%lwt response = Hyper.send request in
-
-  (* TODO Janky delay to give time for pipelining to intervene. *)
-  (* let%lwt () = Lwt_unix.sleep 5. in *)
-
-  let%lwt () = Dream.write response "Hello?" in
-
-  let rec read () =
-    (* TODO Use a higher-level reader once available. *)
-    Dream.next
-      (Dream.body_stream response)
-      ~data:(fun buffer offset length _binary _fin ->
-        Bigstringaf.substring buffer ~off:offset ~len:length
-        |> print_string;
-        flush stdout;
-        read ())
-      ~close:(fun _code -> Lwt.wakeup_later notify_done ())
-      ~flush:read
-      ~ping:(fun _buffer _offset _length -> read ())
-      ~pong:(fun _buffer _offset _length -> read ())
-  in
-  read ();
-
-  done_
-
-let () =
-  (* TODO Without Dream.run in the process, this doesn't get set anywhere... *)
-  Printexc.record_backtrace true;
-
-  Lwt_main.run begin
-    let first = send () in
-    (* let second =
-      (* let%lwt () = Lwt_unix.sleep 1. in *)
-      send ()
-    in *)
-    let%lwt () = first in
-    (* let%lwt () = second in *)
-    Lwt.return ()
-  end
-
-(* TODO Run the server in the same process. *)
diff --git a/example/w-client/dune b/example/w-client/dune
deleted file mode 100644
index 07ffc06d..00000000
--- a/example/w-client/dune
+++ /dev/null
@@ -1,6 +0,0 @@
-(executable
- (name client)
- (libraries hyper)
- (preprocess (pps lwt_ppx)))
-
-(data_only_dirs _esy esy.lock lib node_modules)
diff --git a/example/w-client/dune-project b/example/w-client/dune-project
deleted file mode 100644
index 929c696e..00000000
--- a/example/w-client/dune-project
+++ /dev/null
@@ -1 +0,0 @@
-(lang dune 2.0)
diff --git a/hyper.opam b/hyper.opam
deleted file mode 100644
index 7cbd2efc..00000000
--- a/hyper.opam
+++ /dev/null
@@ -1,11 +0,0 @@
-opam-version: "2.0"
-
-depends: [
-  "dream"
-  "ocaml"
-  "uri"
-]
-
-build: [
-  ["dune" "build" "-p" name "-j" jobs]
-]
diff --git a/src/dune b/src/dune
index b1f2b371..1553ebd8 100644
--- a/src/dune
+++ b/src/dune
@@ -19,21 +19,3 @@
   mirage-crypto-rng.lwt
   ptime.clock.os
  ))
-
-(library
- (public_name hyper)
- (wrapped false)
- (modules hyper)
- (libraries
-  dream
-  dream.h2
-  dream.h2-lwt-unix
-  dream.httpaf
-  dream.httpaf-lwt-unix
-  lwt
-  lwt.unix
-  lwt_ssl
-  ssl
-  dream.websocketaf-lwt-unix
- )
- (preprocess (pps lwt_ppx)))
diff --git a/src/hyper.ml b/src/hyper.ml
deleted file mode 100644
index 1e853a19..00000000
--- a/src/hyper.ml
+++ /dev/null
@@ -1,542 +0,0 @@
-type request = Dream.request
-type response = Dream.response
-type 'a promise = 'a Lwt.t
-
-
-
-(* TODO Is this the right representation? *)
-type connection =
-  | Cleartext of Httpaf_lwt_unix.Client.t
-  | SSL of Httpaf_lwt_unix.Client.SSL.t
-  | H2 of H2_lwt_unix.Client.SSL.t (* TODO No h2c support. *)
-  | WebSocket of Dream__pure.Stream.stream
-    (* TODO NOTE WebSocket connections over HTTP/1.1 are currently
-       single-use. We still go through the pool so as to give it the chance to
-       refuse the connection based on the number of other connections to the
-       same endpoint or host. The actual closing of WebSocket connections by the
-       pool is not yet implemented, so it might try to multiplex them. *)
-    (* TODO WebSockets over https and WebSockets over HTTP/2. *)
-
-type endpoint = string * string * int
-(* TODO But what should a host be? An unresolved hostname:port, or a resolved
-   hostname:port? Hosts probably also need a comparison function or
-   something. And probably a pretty-printing function. These things are entirely
-   abstract. But, because they are abstract, it's possible to change the
-   implementation, in particular to switch from unresolved to resolved hosts.
-   Using unresolved hosts implies doing DNS before deciding whether each request
-   can reuse a connection from the pool. Though that can be avoided by using a
-   DNS cache, it seems like the pool should short-circuit that entire process.
-   So, this becomes some kind of scheme-host-port triplet. *)
-(* TODO Also, how should this work with HTTP/2 and multiplexing? Need to address
-   that next. *)
-(* TODO The scheme is probably not sufficient. Will also need the negotiated
-   protocol, as an https connection might have been upgraded to HTTP/2 or not at
-   the server's discretion during ALPN. *)
-
-(* TODO Implementation of pipelining might make it worthwhile to be able to tell
-   the client when a request has completed sending (only). However, given
-   pipelining is buggy and there is HTTP/2, maybe it's not worth complicating
-   the API for this. *)
-
-type create_result = {
-  connection : connection;
-  destroy : connection -> unit promise;
-  concurrency : [ `Single_use | `Sequence | `Pipeline | `Multiplex ];
-}
-type create = endpoint -> create_result promise
-
-type connection_pool = {
-  obtain : endpoint -> request -> create -> (connection * int64) promise;
-  write_done : int64 -> unit;
-  all_done : int64 -> response -> unit;
-  error : int64 -> unit;
-}
-(* TODO Return needs to provide a function for destroying a connection. *)
-
-let connection_pool ~obtain ~write_done ~all_done ~error =
-  {obtain; write_done; all_done; error}
-
-
-
-type pooled_connection = {
-  create_result : create_result;
-  id : int64;
-  created_at : float;
-  mutable state : [
-    | `Writing_request
-    | `Reading_response_only
-    | `Idle
-  ];
-  mutable ref_count : int;
-  mutable idle_since : float;
-  mutable closing : bool;
-}
-
-(* TODO Add various interesting limits. *)
-let general_connection_pool () =
-  let connections_by_id = Hashtbl.create 32
-  and connections_by_endpoint = Hashtbl.create 32
-  and next_id = ref 0L in
-
-  let obtain endpoint _request create =
-    (* TODO There are, in general, multiple connections for each endpoit, so,
-       properly, the pool would have to either iterate over a list, or have an
-       acceleration data structure for accessing ready connections by endpoint
-       directly. *)
-    (* TODO Must also check whether the connection is closing. However, the
-       current pool never closes connections (!!!). *)
-    (* TODO Also should respect connection concurrency. Sequential connections
-       require the state to be `Idle. Pipeline connections require the state to
-       be not `Writing_request. Multiplexing connections can be in any state to
-       be reused. This code is currently hardcoded to do pipelining, which will
-       conservatively work on HTTP/2 multiplexing, it just won't take advantage
-       of the full concurrency available. *)
-    match Hashtbl.find_opt connections_by_endpoint endpoint with
-    | Some pooled_connection
-        when pooled_connection.state <> `Writing_request ->
-      pooled_connection.state <- `Writing_request;
-      pooled_connection.ref_count <- pooled_connection.ref_count + 1;
-      let connection = pooled_connection.create_result.connection
-      and id = pooled_connection.id in
-      Lwt.return (connection, id)
-    | _ ->
-      let%lwt create_result = create endpoint in
-      let id = !next_id in
-      next_id := Int64.succ !next_id;
-      let pooled_connection = {
-        create_result;
-        id;
-        created_at = Unix.time ();
-        state = `Writing_request;
-        ref_count = 1;
-        idle_since = 0.;
-        closing = false;
-      } in
-      Hashtbl.replace connections_by_id pooled_connection.id pooled_connection;
-      Hashtbl.add connections_by_endpoint endpoint pooled_connection;
-      Lwt.return (create_result.connection, pooled_connection.id)
-
-  and write_done id =
-    match Hashtbl.find_opt connections_by_id id with
-    | None ->
-      ()
-    | Some pooled_connection ->
-      pooled_connection.state <- `Reading_response_only
-      (* TODO In a future version where other writers may be queued, this should
-         wake up the head writer in the queue. *)
-
-  and all_done id _response =
-    match Hashtbl.find_opt connections_by_id id with
-    | None ->
-      ()
-    | Some pooled_connection ->
-      pooled_connection.ref_count <- pooled_connection.ref_count - 1;
-      if pooled_connection.ref_count = 0 then begin
-        pooled_connection.state <- `Idle;
-        pooled_connection.idle_since <- Unix.time ()
-      end
-
-  and error =
-    ignore
-    (* TODO Definitely not correct - this should put the connection into the
-       closing state and decrement its ref count. If the connection becomes idle
-       because of that, it can be closed right away. *)
-
-  in
-
-  connection_pool ~obtain ~write_done ~all_done ~error
-
-
-
-let default_connection_pool =
-  lazy (general_connection_pool ())
-
-
-
-(* TODO How should the host and port be represented? *)
-(* TODO Good error handling. *)
-(* TODO Probably change the default to one per-process pool with some
-   configuration. *)
-let send_one_request connection_pool hyper_request =
-  let uri = Uri.of_string (Dream.target hyper_request) in
-  let scheme = Uri.scheme uri |> Option.get
-  and host = Uri.host uri |> Option.get
-  and port = Uri.port uri |> Option.value ~default:80
-  and method_ = Dream.method_ hyper_request
-  and path_and_query = Uri.path_and_query uri
-  in
-  (* TODO Usage of Option.get above is temporary, though failure to provide a
-     host should probably be a logic error, and doesn't have to be reported in a
-     "neat" way - just a debuggable way. The port can be inferred from the
-     scheme if it is missing. We are assuming http:// for now. *)
-
-  (* TODO These sorts of things can probably be done by passing the client
-     modules in as first-class modules. The code might be not so clear to read,
-     though. *)
-  let destroy connection =
-    match connection with
-    | Cleartext connection -> Httpaf_lwt_unix.Client.shutdown connection
-    | SSL connection -> Httpaf_lwt_unix.Client.SSL.shutdown connection
-    | H2 connection -> H2_lwt_unix.Client.SSL.shutdown connection
-    | WebSocket stream -> Dream__pure.Stream.close stream 1000; Lwt.return_unit
-  in
-
-  let create (scheme, host, port) =
-    let%lwt addresses =
-      Lwt_unix.getaddrinfo
-        host (string_of_int port) [Unix.(AI_FAMILY PF_INET)] in
-    let address = (List.hd addresses).Unix.ai_addr in
-    (* TODO Note: this can raise. *)
-
-    let socket = Lwt_unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in
-    let%lwt () = Lwt_unix.connect socket address in
-
-    match scheme with
-    | "https" ->
-      (* TODO The context needs to be created once per process, or a cache
-          should be used. *)
-      let context = Ssl.(create_context TLSv1_2 Client_context) in
-      (* TODO For WebSockets (wss://), the client should probably do SSL
-          without offering h2 by ALPN. Do any servers implement WebSockets over
-          HTTP/2? *)
-      Ssl.set_context_alpn_protos context ["h2"; "http/1.1"];
-      let%lwt ssl_socket = Lwt_ssl.ssl_connect socket context in
-      (* TODO Next line is pretty suspicious. *)
-      let underlying = Lwt_ssl.ssl_socket ssl_socket |> Option.get in
-      begin match Ssl.get_negotiated_alpn_protocol underlying with
-      | Some "h2" ->
-        (* TODO What about the error handler? *)
-        let%lwt connection =
-          H2_lwt_unix.Client.SSL.create_connection
-            ~error_handler:ignore
-            ssl_socket
-        in
-        Lwt.return {
-          connection = H2 connection;
-          destroy;
-          concurrency = `Multiplex;
-        }
-      | _ ->
-        let%lwt connection =
-          Httpaf_lwt_unix.Client.SSL.create_connection ssl_socket in
-        Lwt.return {
-          connection = SSL connection;
-          destroy;
-          concurrency = `Pipeline;
-        }
-      end
-      (* TODO Need to do server certificate validation here, etc. *)
-
-    | "http" ->
-      let%lwt connection = Httpaf_lwt_unix.Client.create_connection socket in
-      Lwt.return {
-        connection = Cleartext connection;
-        destroy;
-        concurrency = `Pipeline;
-      }
-
-    | "ws" ->
-      (* TODO The weboscket/af client interface seems pretty awkward to use in
-         this kind of control flow, since the input handlers need to be defined
-         immediately. However, the input handlers themselves are ill-conceinved,
-         since they are a partially push API (i.e. they lack full read flow
-         control). So hack something together, and await a better API. *)
-      let stream = ref None in
-      (* TODO The equality between server and client input handlers is not
-         exposed in the websocketaf API. *)
-      let websocket_handler =
-        Dream__http.Http.websocket_handler (fun the_stream ->
-          stream := Some the_stream;
-          Lwt.return_unit)
-      in
-      (* TODO Generate random nonces. *)
-      let%lwt connection =
-        Websocketaf_lwt_unix.Client.connect
-          ~nonce:"abcdefghijklmnop"
-          ~host
-          ~port
-          ~resource:path_and_query
-          ~error_handler:ignore
-          ~websocket_handler:(Obj.magic websocket_handler)
-          socket
-      in
-      ignore connection;
-      (* TODO Extremely questionable! The connection should just carry a stream
-         promise instead, that the handler can wait on later. *)
-      let%lwt () = Lwt_unix.sleep 1. in
-      Lwt.return {
-        connection = WebSocket (Option.get !stream);
-        destroy;
-        concurrency = `Single_use;
-      }
-
-    | _ ->
-      assert false
-      (* TODO Need a log and a more intelligent error here. *)
-  in
-
-  let endpoint = (scheme, host, port) in
-
-  let%lwt (connection, id) =
-    connection_pool.obtain endpoint hyper_request create in
-
-  let request connection =
-    match connection with
-    | Cleartext connection -> Httpaf_lwt_unix.Client.request connection
-    | SSL connection -> Httpaf_lwt_unix.Client.SSL.request connection
-    | H2 _connection -> assert false
-      (* TODO H2 is just a separate CF branch for now. *)
-    | WebSocket _stream -> assert false
-      (* TODO Ditto. *)
-  in
-
-  let response_promise, received_response = Lwt.wait () in
-
-  begin match connection with
-  | Cleartext _ | SSL _ ->
-  (* TODO Did not indent the case body; quick and dirty "get it working"
-     version. *)
-
-  (* TODO Do we now want to store the verson? *)
-  let response_handler
-      (httpaf_response : Httpaf.Response.t)
-      httpaf_response_body =
-
-    (* TODO Using Dream.stream is awkward here, but it allows getting a response
-       with a stream inside it without immeidately having to modify Dream. Once
-       that is fixed, the Lwt.async can be removed, most likely. Dream.stream's
-       signature will change in Dream either way, so it's best to just hold off
-       tweaking it now. *)
-    Lwt.async begin fun () ->
-      let%lwt hyper_response =
-        Dream.stream
-          ~code:(Httpaf.Status.to_code httpaf_response.status)
-          ~headers:(Httpaf.Headers.to_list httpaf_response.headers)
-          (fun _response -> Lwt.return ())
-      in
-      Lwt.wakeup_later received_response hyper_response;
-
-      (* TODO A janky reader. Once Dream.stream is fixed and streams are fully
-         exposed, this can become a good pull-reader. *)
-      let rec receive () =
-        Httpaf.Body.Reader.schedule_read
-          httpaf_response_body
-          ~on_eof:(fun () ->
-            Lwt.async (fun () ->
-              let%lwt () = Dream.close_stream hyper_response in
-              connection_pool.all_done id hyper_response;
-              Lwt.return_unit))
-              (* TODO Make sure there is a way for the reader to abort reading
-                 the stream and yet still get the socket closed. *)
-          ~on_read:(fun buffer ~off ~len ->
-            Lwt.async (fun () ->
-              let%lwt () =
-                Dream.write_buffer
-                  ~offset:off ~length:len hyper_response buffer in
-              Lwt.return (receive ())))
-      in
-      receive ();
-
-      Lwt.return ()
-    end
-  in
-
-  let httpaf_request =
-    Httpaf.Request.create
-      ~headers:(Httpaf.Headers.of_list (Dream.all_headers hyper_request))
-      (Httpaf.Method.of_string (Dream.method_to_string method_))
-      path_and_query in
-  let httpaf_request_body =
-    request
-      connection
-      ~error_handler:(fun _ -> failwith "Protocol error") (* TODO *)
-      ~response_handler
-      httpaf_request in
-
-  let rec send () =
-    Dream.body_stream hyper_request
-    |> fun stream ->
-      Dream.next stream ~data ~close ~flush ~ping ~pong
-
-  (* TODO Implement flow control like on the server side, using flush. *)
-  and data buffer offset length _binary _fin =
-    Httpaf.Body.Writer.write_bigstring
-      httpaf_request_body
-      ~off:offset
-      ~len:length
-      buffer;
-    send ()
-
-  and close _code =
-    Httpaf.Body.Writer.close httpaf_request_body;
-    (* TODO This should only be called if reading is not yet done. *)
-    connection_pool.write_done id
-
-  and flush () = send ()
-  and ping _buffer _offset _length = send ()
-  and pong _buffer _offset _length = send ()
-
-  in
-
-  send ()
-
-  | H2 connection' ->
-    (* TODO This is a nasty duplicate of the above case, specialized for H2. See
-       comments above. *)
-    let response_handler (h2_response : H2.Response.t) h2_response_body =
-
-      Lwt.async begin fun () ->
-        let%lwt hyper_response =
-          Dream.stream
-            ~code:(H2.Status.to_code h2_response.status)
-            ~headers:(H2.Headers.to_list h2_response.headers)
-            (fun _response -> Lwt.return ())
-        in
-        Lwt.wakeup_later received_response hyper_response;
-
-        let rec receive () =
-          H2.Body.schedule_read
-            h2_response_body
-            ~on_eof:(fun () ->
-              Lwt.async (fun () ->
-                let%lwt () = Dream.close_stream hyper_response in
-                connection_pool.all_done id hyper_response;
-                Lwt.return_unit))
-            ~on_read:(fun buffer ~off ~len ->
-              Lwt.async (fun () ->
-                let%lwt () =
-                  Dream.write_buffer
-                    ~offset:off ~length:len hyper_response buffer in
-                Lwt.return (receive ())))
-        in
-        receive ();
-
-        Lwt.return ()
-      end
-    in
-
-    let h2_request =
-      H2.Request.create
-        ~headers:(H2.Headers.of_list (Dream.all_headers hyper_request))
-        ~scheme
-        (H2.Method.of_string (Dream.method_to_string method_))
-        path_and_query in
-    let h2_request_body =
-      H2_lwt_unix.Client.SSL.request
-        connection'
-        h2_request
-        ~error_handler:(fun _ -> failwith "Protocol error")
-        ~response_handler in
-
-    let rec send () =
-      Dream.body_stream hyper_request
-      |> fun stream ->
-        Dream.next stream ~data ~close ~flush ~ping ~pong
-
-    and data buffer offset length _binary _fin =
-      H2.Body.write_bigstring
-        h2_request_body
-        ~off:offset
-        ~len:length
-        buffer;
-      send ()
-
-    and close _code = H2.Body.close_writer h2_request_body
-    and flush () = send ()
-    and ping _buffer _offset _length = send ()
-    and pong _buffer _offset _length = send ()
-
-    in
-
-    send ()
-
-  | WebSocket websocket ->
-    let hyper_response = Dream.response "" in
-
-    let hyper_response : Dream__pure.Inmost.response =
-      Obj.magic (hyper_response : Dream.response) in
-    let hyper_response = {hyper_response with body = websocket} in
-    let hyper_response : Dream.response = Obj.magic hyper_response in
-
-    Lwt.wakeup_later received_response hyper_response
-  end;
-
-  response_promise
-
-
-
-(* TODO Add an option to redirect only to the same host? Or is this better
-   addressed by just letting the user do redirects manually, if needed? It's
-   probably best to expose some kind of filter function, because redirect
-   handling is slightly tricky (with body streams), and the user can benefit by
-   not having to write code themselves for this. *)
-(* TODO Expose a redirect cache callback for permanent redirects. *)
-let send ?(connection_pool = Lazy.force default_connection_pool) request =
-  let rec redirect_loop remaining request =
-    (* TODO Can save an allocation by binding the promise. *)
-    let%lwt response = send_one_request connection_pool request in
-    if remaining <= 0 then
-      (* TODO Log a warning here if the original redirect limit was not zero. *)
-      Lwt.return response
-    else
-      match Dream.status response with
-      | `Moved_Permanently
-      | `Found
-      | `See_Other
-      | `Temporary_Redirect
-      | `Permanent_Redirect ->
-        begin match Dream.header "Location" response with
-        | None ->
-          (* TODO Log a warning here. *)
-          Lwt.return response
-        | Some target ->
-          (* TODO For Moved Permanently, Temporary Redirect, Permanent Redirect,
-             warn if the server has read the request body, because we won't
-             easily be able to resend it. *)
-          (* TODO If requests become mutable, probably a new request should be
-             explicitly allocated. *)
-          (* TODO The URI in Location: might be absolute or not. *)
-          let request : Dream__pure.Inmost.request =
-            Obj.magic (request : Dream.request) in
-          let request =
-            {request with specific = {request.specific with target}} in
-          let request : Dream.request =
-            Obj.magic request in
-
-          let request =
-            match Dream.status response with
-            | `Found
-            | `See_Other ->
-              Dream.with_method_ `GET request
-              (* TODO Note that doing this for 302 is not correct, but is done
-                 to match established behavior on the Web. *)
-              (* TODO Should also substitute the body with an empty one here,
-                 and warn if the previous body is not closed (and close it). *)
-            | _ ->
-              request
-          in
-
-          redirect_loop (remaining - 1) request
-        end
-      | _ ->
-        Lwt.return response
-  in
-
-  redirect_loop 5 request
-
-
-
-(* TODO Which function should be the most fundamental function? Probably the
-   request -> response runner. But it's probably not the most convenient for
-   general usage.
-
-   How should the host and port be represented? Can probably just allow them in
-   [target], but also allow overriding them so that only the path and query are
-   used. This could get confusing, though.
-
-   To start with, implement a good request -> response runner that does the
-   basics: create a request, allow streaming out its body, receive a response,
-   allow streaming in its body. After that, elaborate. Probably should start
-   with HTTP/2 and SSL.
-
-   How are non-response errors reported? *)
diff --git a/src/hyper.mli b/src/hyper.mli
deleted file mode 100644
index 747c1b49..00000000
--- a/src/hyper.mli
+++ /dev/null
@@ -1,29 +0,0 @@
-type request = Dream.request
-type response = Dream.response
-type 'a promise = 'a Lwt.t
-
-
-
-type connection_pool
-
-val send :
-  ?connection_pool:connection_pool ->
-    request -> response promise
-
-
-
-type connection
-type endpoint
-type create_result = {
-  connection : connection;
-  destroy : connection -> unit promise;
-  concurrency : [ `Single_use | `Sequence | `Pipeline | `Multiplex ];
-}
-type create = endpoint -> create_result promise
-
-val connection_pool :
-  obtain:(endpoint -> request -> create -> (connection * int64) promise) ->
-  write_done:(int64 -> unit) ->
-  all_done:(int64 -> response -> unit) ->
-  error:(int64 -> unit) ->
-    connection_pool

From ff6f1d24575d8459a07d68a58791b16aaa435e53 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 11 Dec 2021 21:51:59 +0300
Subject: [PATCH 063/312] Rename phantom types to client/server

The names incoming/outgoing are no longer clear when they are also used
on the client. Another possibility would be to define

  type Hyper.outgoing = Dream.incoming
  type Hyper.incoming = Dream.outgoing

...but this would probably be quite frustrating when switching between
Dream and Hyper, reading error messages, etc. It's better to have
consistent naming.
---
 src/dream.mli      | 15 ++++++++-------
 src/pure/inmost.ml |  8 ++++----
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index d4847296..a78c5777 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -10,11 +10,11 @@
     Dream is built on just five types. The first two are the data types of
     Dream. Both are abstract, even though they appear to have definitions: *)
 
-type request = incoming message
+type request = client message
 (** HTTP requests, such as [GET /something HTTP/1.1]. See
     {!section-requests}. *)
 
-and response = outgoing message
+and response = server message
 (** HTTP responses, such as [200 OK]. See {!section-responses}. *)
 
 (** The remaining three types are for building up Web apps. *)
@@ -109,13 +109,14 @@ and 'a message
       val Dream.header : string -> 'a message -> string option
     ]} *)
 
-and incoming
-and outgoing
+and client
+and server
 (** Type parameters for {!message} for {!type-request} and {!type-response},
     respectively. These are “phantom” types. They have no meaning other than
-    they are different from each other. Dream only ever creates [incoming
-    message] and [outgoing message]. [incoming] and [outgoing] are never
-    mentioned again in the docs. *)
+    they are different from each other. Dream only ever creates [client message]
+    and [server message]. [client] and [server] are never mentioned again in the
+    docs. *)
+(* TODO These docs need to be clarified. *)
 
 and 'a promise = 'a Lwt.t
 (** Dream uses {{:https://github.com/ocsigen/lwt} Lwt} for promises and
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 7ca53e6d..f2f784dc 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -39,8 +39,8 @@ module Scope = Hmap.Make (Scope_variable_metadata)
 
 type websocket = Stream.stream
 
-type request = incoming message
-and response = outgoing message
+type request = client message
+and response = server message
 
 and 'a message = {
   specific : 'a;
@@ -52,7 +52,7 @@ and 'a message = {
   last : 'a message ref;
 }
 
-and incoming = {
+and client = {
   app : app;
   request_client : string;
   method_ : method_;
@@ -65,7 +65,7 @@ and incoming = {
 }
 (* Prefix is stored backwards. *)
 
-and outgoing = {
+and server = {
   status : status;
   websocket : (websocket -> unit Lwt.t) option;
 }

From ce6c0084a0ff62a684fb603e83c499a84880b4dc Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 11 Dec 2021 22:04:53 +0300
Subject: [PATCH 064/312] Streams: expose Dream.client_stream and fix tests

---
 src/dream.mli                    | 7 ++++++-
 src/pure/inmost.ml               | 8 +++-----
 test/expect/middleware/router.ml | 9 +++++++--
 3 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index a78c5777..1a813044 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -725,9 +725,14 @@ type buffer =
 
 (* TODO What should the body stream retrieval function be called? *)
 (* TODO Remove old functions from signature. *)
+(* TODO Should there be a section for this somewhere? Probably "low-level
+   streaming" should be promoted to a top-level section, Streaming. *)
 type stream
 
-val body_stream : 'a message -> stream
+val server_stream : 'a message -> stream
+val client_stream : 'a message -> stream
+(* TODO Document that this is for middlewares that are transforming a response
+   stream or a WebSocket. *)
 
 (* TODO Probably even close can be made optional. exn can be made optional. *)
 (* TODO Argument order? *)
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index f2f784dc..54984386 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -292,14 +292,12 @@ let body message =
 let read message =
   Stream.read_convenience message.server_stream
 
-let body_stream message =
-  message.server_stream
-
-(* TODO Temporary internal function so that the HTTP layer can read response
-   streams. *)
 let client_stream message =
   message.client_stream
 
+let server_stream message =
+  message.server_stream
+
 (* TODO Pending the dream.mli interface reorganization for the new stream
    API. *)
 let next =
diff --git a/test/expect/middleware/router.ml b/test/expect/middleware/router.ml
index d0437b26..22599c80 100644
--- a/test/expect/middleware/router.ml
+++ b/test/expect/middleware/router.ml
@@ -86,9 +86,14 @@ let show ?(prefix = "/") ?(method_ = `GET) target router =
     |> Dream.test ~prefix
       (router @@ fun _ -> Dream.respond ~status:`Not_Found "")
     |> fun response ->
-      let status = Dream.status response
-      and body = Lwt_main.run (Dream.body response)
+      let body =
+        Dream.client_stream response
+        |> Obj.magic (* TODO Needs to be replaced by exposing read_until_close
+                             as a function on abstract streams. *)
+        |> Dream__pure.Stream.read_until_close
+        |> Lwt_main.run
       in
+      let status = Dream.status response in
       Printf.printf "Response: %i %s\n"
         (Dream.status_to_int status) (Dream.status_to_string status);
       if body <> "" then

From ed1c949226c30fad7170b66641ae48fc13159507 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 11 Dec 2021 23:40:21 +0300
Subject: [PATCH 065/312] Add Dream.with_client_stream

Primarily useful for the client, so it should be moved to dream-core in
the future. Will also be useful for stream-transforming middlewares.
---
 src/dream.mli      | 2 ++
 src/pure/inmost.ml | 7 +++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 1a813044..103e337c 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -733,6 +733,8 @@ val server_stream : 'a message -> stream
 val client_stream : 'a message -> stream
 (* TODO Document that this is for middlewares that are transforming a response
    stream or a WebSocket. *)
+val with_client_stream : stream -> 'a message -> 'a message
+(* TODO Normalize with with_stream, or add a separate with_server_stream. *)
 
 (* TODO Probably even close can be made optional. exn can be made optional. *)
 (* TODO Argument order? *)
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 54984386..b76951fd 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -298,6 +298,9 @@ let client_stream message =
 let server_stream message =
   message.server_stream
 
+let with_client_stream client_stream message =
+  update {message with client_stream}
+
 (* TODO Pending the dream.mli interface reorganization for the new stream
    API. *)
 let next =
@@ -499,8 +502,8 @@ let request
       upload = initial_multipart_state ();
     };
     headers;
-    client_stream = Stream.(stream (string body) no_writer);
-    server_stream = Stream.(stream no_reader no_writer);
+    client_stream = Stream.(stream no_reader no_writer);
+    server_stream = Stream.(stream (string body) no_writer);
     locals = Scope.empty;
     first = request;
     last = ref request;

From 2f40d67224d3a3cf72d1dc1f2a29844a136e8554 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 12 Dec 2021 12:12:52 +0300
Subject: [PATCH 066/312] dream.pure should not depend on dream.cipher

---
 src/cipher/cipher.ml      |  23 +++++++
 src/cipher/dune           |   1 +
 src/dream.ml              |   3 +
 src/middleware/cookie.ml  | 124 ++++++++++++++++++++++++++++++++++
 src/middleware/csrf.ml    |   7 +-
 src/middleware/flash.ml   |  10 +--
 src/middleware/session.ml |   8 +--
 src/pure/dune             |   1 -
 src/pure/inmost.ml        | 135 --------------------------------------
 src/sql/session.ml        |   5 +-
 10 files changed, 169 insertions(+), 148 deletions(-)
 create mode 100644 src/middleware/cookie.ml

diff --git a/src/cipher/cipher.ml b/src/cipher/cipher.ml
index 1ba98a69..f4d7402d 100644
--- a/src/cipher/cipher.ml
+++ b/src/cipher/cipher.ml
@@ -111,3 +111,26 @@ struct
         | None -> None
         | Some plaintext -> Some (Cstruct.to_string plaintext)
 end
+
+(* TODO Ideally, get rid of this open. *)
+open Dream__pure.Inmost
+
+let encryption_secret request =
+  List.hd request.specific.app.secrets
+
+let decryption_secrets request =
+  request.specific.app.secrets
+
+let encrypt ?associated_data request plaintext =
+  encrypt
+    (module AEAD_AES_256_GCM)
+    ?associated_data
+    (encryption_secret request)
+    plaintext
+
+let decrypt ?associated_data request ciphertext =
+  decrypt
+    (module AEAD_AES_256_GCM)
+    ?associated_data
+    (decryption_secrets request)
+    ciphertext
diff --git a/src/cipher/dune b/src/cipher/dune
index bc23d7db..b631d401 100644
--- a/src/cipher/dune
+++ b/src/cipher/dune
@@ -3,6 +3,7 @@
  (name dream__cipher)
  (libraries
   cstruct
+  dream.pure
   mirage-crypto
   mirage-crypto-rng
  )
diff --git a/src/dream.ml b/src/dream.ml
index 696b5cce..2726df27 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -28,6 +28,9 @@ let debug = default_log.debug
 include Dream__middleware.Router
 include Dream__unix.Static
 
+include Dream__cipher.Cipher
+include Dream__middleware.Cookie
+
 include Dream__middleware.Session
 include Dream__middleware.Session.Make (Ptime_clock)
 let sql_sessions = Dream__sql.Session.middleware
diff --git a/src/middleware/cookie.ml b/src/middleware/cookie.ml
new file mode 100644
index 00000000..06b3c22b
--- /dev/null
+++ b/src/middleware/cookie.ml
@@ -0,0 +1,124 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+module Formats = Dream__pure.Formats
+module Dream = Dream__pure.Inmost
+module Cipher = Dream__cipher.Cipher
+
+
+
+let infer_cookie_prefix prefix domain path secure =
+  match prefix, domain, path, secure with
+    | Some (Some `Host), _, _, _ -> "__Host-"
+    | Some (Some `Secure), _, _, _ -> "__Secure-"
+    | Some None, _, _, _ -> ""
+    | None, None, Some "/", true -> "__Host-"
+    | None, _, _, true -> "__Secure-"
+    | None, _, _, _ -> ""
+
+(* TODO Some actual performance in the implementation. *)
+let cookie
+    ?prefix:cookie_prefix
+    ?decrypt:(decrypt_cookie = true)
+    ?domain
+    ?path
+    ?secure
+    name
+    request =
+
+  let path =
+    match path with
+    | Some path -> path
+    | None -> Some (Dream.prefix request)
+  in
+
+  let secure =
+    match secure with
+    | Some secure -> secure
+    | None -> Dream.https request
+  in
+
+  let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
+  let name = cookie_prefix ^ name in
+  let test = fun (name', _) -> name = name' in
+
+  match Dream.all_cookies request |> List.find_opt test with
+  | None -> None
+  | Some (_, value) ->
+    if not decrypt_cookie then
+      Some value
+    else
+      match Formats.from_base64url value with
+      | None ->
+        None
+      | Some value ->
+        Cipher.decrypt request value ~associated_data:("dream.cookie-" ^ name)
+
+let set_cookie
+    ?prefix:cookie_prefix
+    ?encrypt:(encrypt_cookie = true)
+    ?expires
+    ?max_age
+    ?domain
+    ?path
+    ?secure
+    ?(http_only = true)
+    ?same_site
+    name
+    value
+    request
+    response =
+
+  (* TODO Need the site prefix, not the subsite prefix! *)
+  let path =
+    match path with
+    | Some path -> path
+    | None -> Some (Dream.prefix request)
+  in
+
+  let secure =
+    match secure with
+    | Some secure -> secure
+    | None -> Dream.https request
+  in
+
+  let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
+
+  let same_site =
+    match same_site with
+    | None -> Some `Strict
+    | Some None -> None
+    | Some (Some `Strict) -> Some `Strict
+    | Some (Some `Lax) -> Some `Lax
+    | Some (Some `None) -> Some `None
+  in
+
+  let name = cookie_prefix ^ name in
+
+  let value =
+    if encrypt_cookie then
+      (* Give each cookie name a different associated data "space," effectively
+         partitioning valid ciphertexts among the cookies. See also
+         https://github.com/aantron/dream/issues/19#issuecomment-820250853. *)
+      Cipher.encrypt request value ~associated_data:("dream.cookie-" ^ name)
+      |> Formats.to_base64url
+    else
+      value
+  in
+
+  let set_cookie =
+    Formats.to_set_cookie
+      ?expires ?max_age ?domain ?path ~secure ~http_only ?same_site name value
+  in
+
+  Dream.add_header "Set-Cookie" set_cookie response
+
+let drop_cookie
+    ?prefix ?domain ?path ?secure ?http_only ?same_site name request response =
+  set_cookie
+    ?prefix ~encrypt:false ~expires:0. ?domain ?path ?secure ?http_only
+    ?same_site name "" request response
diff --git a/src/middleware/csrf.ml b/src/middleware/csrf.ml
index a528a1e3..1b615c4c 100644
--- a/src/middleware/csrf.ml
+++ b/src/middleware/csrf.ml
@@ -6,6 +6,9 @@
 
 
 module Dream = Dream__pure.Inmost
+module Cipher = Dream__cipher.Cipher
+
+
 
 let field_name =
   "dream.csrf"
@@ -21,7 +24,7 @@ let csrf_token ~now ?(valid_for = default_valid_for) request =
     "expires_at", `Float (floor (now +. valid_for));
   ]
   |> Yojson.Basic.to_string
-  |> Dream.encrypt ~associated_data:field_name request
+  |> Cipher.encrypt ~associated_data:field_name request
   |> Dream__pure.Formats.to_base64url
 
 let log =
@@ -41,7 +44,7 @@ let verify_csrf_token ~now request token = Lwt.return @@
     `Invalid
   | Some token ->
 
-  match Dream.decrypt ~associated_data:field_name request token with
+  match Cipher.decrypt ~associated_data:field_name request token with
   | None ->
     log.warning (fun log -> log ~request "CSRF token could not be verified");
     `Invalid
diff --git a/src/middleware/flash.ml b/src/middleware/flash.ml
index 5fc1ee97..6f1d352d 100644
--- a/src/middleware/flash.ml
+++ b/src/middleware/flash.ml
@@ -7,6 +7,8 @@
 
 module Dream = Dream__pure.Inmost
 
+
+
 let log =
   Log.sub_log "dream.flash"
 
@@ -41,7 +43,7 @@ let flash request =
     | _ -> failwith "Bad flash message content"
   in
   let x =
-    Dream.cookie flash_cookie request
+    Cookie.cookie flash_cookie request
     |>? fun value ->
     match Yojson.Basic.from_string value with
     | `List y -> Some (group @@ List.map unpack y)
@@ -74,14 +76,14 @@ let flash_messages inner_handler request =
       log ~request "%s" "No flash messages.");
   let outbox = ref [] in
   let request = Dream.with_local storage outbox request in
-  let existing = Dream.cookie flash_cookie request in
+  let existing = Cookie.cookie flash_cookie request in
   let%lwt response = inner_handler request in
   let entries = List.rev !outbox in
   let response =
     match existing, entries with
     | None, [] -> response
     | Some _, [] ->
-      Dream.set_cookie flash_cookie "" request response ~expires:0.
+      Cookie.set_cookie flash_cookie "" request response ~expires:0.
     | _, _ ->
       let content =
         List.fold_right (fun (x,y) a -> `String x :: `String y :: a) entries []
@@ -96,6 +98,6 @@ let flash_messages inner_handler request =
         else
           ()
       in
-      Dream.set_cookie flash_cookie value request response ~max_age:five_minutes
+      Cookie.set_cookie flash_cookie value request response ~max_age:five_minutes
   in
   Lwt.return response
diff --git a/src/middleware/session.ml b/src/middleware/session.ml
index bd36af69..7e70ef32 100644
--- a/src/middleware/session.ml
+++ b/src/middleware/session.ml
@@ -153,7 +153,7 @@ struct
     let now = gettimeofday () in
 
     let valid_session =
-      Dream.cookie ~decrypt:false session_cookie request
+      Cookie.cookie ~decrypt:false session_cookie request
       |>? read_session_id
       |>? Hashtbl.find_opt hash_table
       |>? fun session ->
@@ -188,7 +188,7 @@ struct
       let id = version_session_id !session.id in
       let max_age = !session.expires_at -. now () in
       Lwt.return
-        (Dream.set_cookie
+        (Cookie.set_cookie
           session_cookie id request response ~encrypt:false ~max_age)
 
   let back_end ~now lifetime =
@@ -240,7 +240,7 @@ struct
     let now = gettimeofday () in
 
     let valid_session =
-      Dream.cookie session_cookie request
+      Cookie.cookie session_cookie request
       |>? read_value
       |>? fun value ->
         (* TODO Is there a non-raising version of this? *)
@@ -310,7 +310,7 @@ struct
         |> version_value
       in
       Lwt.return
-        (Dream.set_cookie session_cookie value request response ~max_age)
+        (Cookie.set_cookie session_cookie value request response ~max_age)
 
   let back_end ~now lifetime = {
     load = load ~now lifetime;
diff --git a/src/pure/dune b/src/pure/dune
index e489a588..0d479ebf 100644
--- a/src/pure/dune
+++ b/src/pure/dune
@@ -4,7 +4,6 @@
  (libraries
   base64
   bigstringaf
-  dream.cipher
   multipart_form
   hmap
   lwt
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index b76951fd..f2867332 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -28,9 +28,6 @@ let initial_multipart_state () = {
   stream = Lwt_stream.of_list [];
 }
 
-(* TODO Temporary; Ciphers should depend on the core, not the other way. *)
-module Cipher = Dream__cipher.Cipher
-
 module Scope_variable_metadata =
 struct
   type 'a t = string option * ('a -> string) option
@@ -624,135 +621,3 @@ let rec pipeline middlewares handler =
 
 let sort_headers headers =
   List.stable_sort (fun (name, _) (name', _) -> compare name name') headers
-
-let encryption_secret request =
-  List.hd request.specific.app.secrets
-
-let decryption_secrets request =
-  request.specific.app.secrets
-
-let encrypt ?associated_data request plaintext =
-  Cipher.encrypt
-    (module Cipher.AEAD_AES_256_GCM)
-    ?associated_data
-    (encryption_secret request)
-    plaintext
-
-let decrypt ?associated_data request ciphertext =
-  Cipher.decrypt
-    (module Cipher.AEAD_AES_256_GCM)
-    ?associated_data
-    (decryption_secrets request)
-    ciphertext
-
-let infer_cookie_prefix prefix domain path secure =
-  match prefix, domain, path, secure with
-    | Some (Some `Host), _, _, _ -> "__Host-"
-    | Some (Some `Secure), _, _, _ -> "__Secure-"
-    | Some None, _, _, _ -> ""
-    | None, None, Some "/", true -> "__Host-"
-    | None, _, _, true -> "__Secure-"
-    | None, _, _, _ -> ""
-
-(* TODO Some actual performance in the implementation. *)
-let cookie
-    ?prefix:cookie_prefix
-    ?decrypt:(decrypt_cookie = true)
-    ?domain
-    ?path
-    ?secure
-    name
-    request =
-
-  let path =
-    match path with
-    | Some path -> path
-    | None -> Some (prefix request)
-  in
-
-  let secure =
-    match secure with
-    | Some secure -> secure
-    | None -> https request
-  in
-
-  let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
-  let name = cookie_prefix ^ name in
-  let test = fun (name', _) -> name = name' in
-
-  match all_cookies request |> List.find_opt test with
-  | None -> None
-  | Some (_, value) ->
-    if not decrypt_cookie then
-      Some value
-    else
-      match Formats.from_base64url value with
-      | None ->
-        None
-      | Some value ->
-        decrypt request value ~associated_data:("dream.cookie-" ^ name)
-
-let set_cookie
-    ?prefix:cookie_prefix
-    ?encrypt:(encrypt_cookie = true)
-    ?expires
-    ?max_age
-    ?domain
-    ?path
-    ?secure
-    ?(http_only = true)
-    ?same_site
-    name
-    value
-    request
-    response =
-
-  (* TODO Need the site prefix, not the subsite prefix! *)
-  let path =
-    match path with
-    | Some path -> path
-    | None -> Some (prefix request)
-  in
-
-  let secure =
-    match secure with
-    | Some secure -> secure
-    | None -> https request
-  in
-
-  let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
-
-  let same_site =
-    match same_site with
-    | None -> Some `Strict
-    | Some None -> None
-    | Some (Some `Strict) -> Some `Strict
-    | Some (Some `Lax) -> Some `Lax
-    | Some (Some `None) -> Some `None
-  in
-
-  let name = cookie_prefix ^ name in
-
-  let value =
-    if encrypt_cookie then
-      (* Give each cookie name a different associated data "space," effectively
-         partitioning valid ciphertexts among the cookies. See also
-         https://github.com/aantron/dream/issues/19#issuecomment-820250853. *)
-      encrypt request value ~associated_data:("dream.cookie-" ^ name)
-      |> Formats.to_base64url
-    else
-      value
-  in
-
-  let set_cookie =
-    Formats.to_set_cookie
-      ?expires ?max_age ?domain ?path ~secure ~http_only ?same_site name value
-  in
-
-  add_header "Set-Cookie" set_cookie response
-
-let drop_cookie
-    ?prefix ?domain ?path ?secure ?http_only ?same_site name request response =
-  set_cookie
-    ?prefix ~encrypt:false ~expires:0. ?domain ?path ?secure ?http_only
-    ?same_site name "" request response
diff --git a/src/sql/session.ml b/src/sql/session.ml
index f2050889..ea5bf26f 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -6,6 +6,7 @@
 
 
 module Dream = Dream__pure.Inmost
+module Cookie = Dream__middleware.Cookie
 module Session = Dream__middleware.Session
 
 
@@ -142,7 +143,7 @@ let load lifetime request =
     let now = Unix.gettimeofday () in
 
     let%lwt valid_session =
-      match Dream.cookie ~decrypt:false Session.session_cookie request with
+      match Cookie.cookie ~decrypt:false Session.session_cookie request with
       | None -> Lwt.return_none
       | Some id ->
         match Session.read_session_id id with
@@ -185,7 +186,7 @@ let send (operations, session) request response =
     let id = Session.version_session_id !session.Session.id in
     let max_age = !session.Session.expires_at -. Unix.gettimeofday () in
     Lwt.return
-      (Dream.set_cookie
+      (Cookie.set_cookie
         Session.session_cookie
         id
         request

From 3f50f75a01207a4921900ba047fb6b431e4909a5 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 12 Dec 2021 11:48:56 +0300
Subject: [PATCH 067/312] Move dream-pure to its own opam package

---
 Makefile                                | 4 ++--
 dream.opam                              | 6 ++----
 src/cipher/cipher.ml                    | 2 +-
 src/cipher/dune                         | 2 +-
 src/dream.ml                            | 6 +++---
 src/dune                                | 2 +-
 src/graphql/dune                        | 2 +-
 src/graphql/graphql.ml                  | 2 +-
 src/http/adapt.ml                       | 4 ++--
 src/http/dune                           | 2 +-
 src/http/error_handler.ml               | 4 ++--
 src/http/error_handler.mli              | 2 +-
 src/http/http.ml                        | 8 ++++----
 src/middleware/catch.ml                 | 2 +-
 src/middleware/content_length.ml        | 2 +-
 src/middleware/cookie.ml                | 4 ++--
 src/middleware/csrf.ml                  | 6 +++---
 src/middleware/dune                     | 2 +-
 src/middleware/echo.ml                  | 2 +-
 src/middleware/error_template.eml.ml    | 4 ++--
 src/middleware/flash.ml                 | 2 +-
 src/middleware/form.ml                  | 4 ++--
 src/middleware/log.ml                   | 2 +-
 src/middleware/lowercase_headers.ml     | 2 +-
 src/middleware/origin_referrer_check.ml | 2 +-
 src/middleware/request_id.ml            | 2 +-
 src/middleware/router.ml                | 2 +-
 src/middleware/router.mli               | 2 +-
 src/middleware/session.ml               | 6 +++---
 src/middleware/site_prefix.ml           | 2 +-
 src/middleware/tag.eml.ml               | 4 ++--
 src/middleware/upload.ml                | 2 +-
 src/mirage/dune                         | 2 +-
 src/pure/dune                           | 4 ++--
 src/sql/dune                            | 2 +-
 src/sql/session.ml                      | 2 +-
 src/sql/sql.ml                          | 2 +-
 src/unix/dune                           | 2 +-
 src/unix/static.ml                      | 4 ++--
 test/expect/middleware/dune             | 2 +-
 test/expect/middleware/router.ml        | 4 ++--
 test/expect/pure/dune                   | 2 +-
 test/expect/pure/stream/stream.ml       | 2 +-
 43 files changed, 63 insertions(+), 65 deletions(-)

diff --git a/Makefile b/Makefile
index 2dde57d5..6fe09425 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,10 @@
 .PHONY : build
 build :
-	@dune build -p dream --no-print-directory @install
+	@dune build -p dream-pure,dream --no-print-directory @install
 
 .PHONY : watch
 watch :
-	@dune build -p dream --no-print-directory -w
+	@dune build -p dream-pure,dream --no-print-directory -w
 
 TEST ?= test
 
diff --git a/dream.opam b/dream.opam
index 903f8457..7d0bf5e9 100644
--- a/dream.opam
+++ b/dream.opam
@@ -48,17 +48,16 @@ maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 
 depends: [
   "base-unix"
-  "base64" {>= "3.1.0"}  # Base64.encode_string.
   "bigarray-compat"
   "caqti" {>= "1.6.0"}  # https://github.com/aantron/dream/issues/44.
   "caqti-lwt"
   "conf-libev" {os != "win32"}
   "cstruct" {>= "6.0.0"}
+  "dream-pure"
   "dune" {>= "2.7.0"}  # --instrument-with.
   "fmt" {>= "0.8.7"}  # `Italic.
   "graphql_parser"
   "graphql-lwt"
-  "hmap"
   "lwt"
   "lwt_ppx" {>= "1.2.2"}
   "lwt_ssl"
@@ -69,10 +68,10 @@ depends: [
   "mirage-crypto-rng" {>= "0.8.0"}  # Signature of initialize.
   "multipart_form" {>= "0.3.0"}
   "ocaml" {>= "4.08.0"}
+  "ptime" {>= "0.8.1"}  # Ptime.v.
   "ssl" {>= "0.5.8"}  # Ssl.get_negotiated_alpn_protocol.
   "uri" {>= "4.2.0"}
   "yojson"  # ...
-  "ptime" {>= "0.8.1"} # time and date
 
   # Currently vendored.
   # "gluten"
@@ -94,7 +93,6 @@ depends: [
   "result"  # http/af, websocket/af.
 
   # Testing, development.
-  "alcotest" {with-test}
   "bisect_ppx" {with-test & >= "2.5.0"}  # --instrument-with.
   "caqti-driver-postgresql" {with-test}
   "caqti-driver-sqlite3" {with-test}
diff --git a/src/cipher/cipher.ml b/src/cipher/cipher.ml
index f4d7402d..a2c3879e 100644
--- a/src/cipher/cipher.ml
+++ b/src/cipher/cipher.ml
@@ -113,7 +113,7 @@ struct
 end
 
 (* TODO Ideally, get rid of this open. *)
-open Dream__pure.Inmost
+open Dream_pure.Inmost
 
 let encryption_secret request =
   List.hd request.specific.app.secrets
diff --git a/src/cipher/dune b/src/cipher/dune
index b631d401..aedd14ee 100644
--- a/src/cipher/dune
+++ b/src/cipher/dune
@@ -3,7 +3,7 @@
  (name dream__cipher)
  (libraries
   cstruct
-  dream.pure
+  dream-pure
   mirage-crypto
   mirage-crypto-rng
  )
diff --git a/src/dream.ml b/src/dream.ml
index 2726df27..9696d516 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -5,8 +5,8 @@
 
 
 
-include Dream__pure.Stream
-include Dream__pure.Inmost
+include Dream_pure.Stream
+include Dream_pure.Inmost
 
 include Dream__middleware.Log
 include Dream__middleware.Log.Make (Ptime_clock)
@@ -63,7 +63,7 @@ let () = Dream__cipher.Random.initialize Mirage_crypto_rng_lwt.initialize
 let random =
   Dream__cipher.Random.random
 
-include Dream__pure.Formats
+include Dream_pure.Formats
 
 (* TODO Restore the ability to test with a prefix and re-enable the
    corresponding tests. *)
diff --git a/src/dune b/src/dune
index 1553ebd8..ca4934a6 100644
--- a/src/dune
+++ b/src/dune
@@ -9,7 +9,7 @@
   dream.http
   dream.middleware
   dream.unix
-  dream.pure
+  dream-pure
   dream.sql
   fmt.tty
   graphql-lwt
diff --git a/src/graphql/dune b/src/graphql/dune
index 4989280c..20eab391 100644
--- a/src/graphql/dune
+++ b/src/graphql/dune
@@ -4,7 +4,7 @@
  (libraries
   dream.graphiql
   dream.middleware
-  dream.pure
+  dream-pure
   graphql_parser
   graphql-lwt
   lwt
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index f22b1f42..de07a9b0 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index bda3685a..542a652b 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -5,8 +5,8 @@
 
 
 
-module Dream = Dream__pure.Inmost
-module Stream = Dream__pure.Stream
+module Dream = Dream_pure.Inmost
+module Stream = Dream_pure.Stream
 
 
 
diff --git a/src/http/dune b/src/http/dune
index 1162a6f2..f0ee185b 100644
--- a/src/http/dune
+++ b/src/http/dune
@@ -8,7 +8,7 @@
   dream.cipher
   dream.localhost
   dream.middleware
-  dream.pure
+  dream-pure
   dream.gluten
   dream.gluten-lwt-unix
   dream.h2
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 480f49f9..43d129de 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
@@ -196,7 +196,7 @@ let default_template _error debug_dump response =
     let code = Dream.status_to_int status
     and reason = Dream.status_to_string status in
     response
-    |> Dream.with_header "Content-Type" Dream__pure.Formats.text_html
+    |> Dream.with_header "Content-Type" Dream_pure.Formats.text_html
     |> Dream.with_body
       (Dream__middleware.Error_template.render ~debug_dump ~code ~reason)
     |> Lwt.return
diff --git a/src/http/error_handler.mli b/src/http/error_handler.mli
index fac335cb..667f271f 100644
--- a/src/http/error_handler.mli
+++ b/src/http/error_handler.mli
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/http/http.ml b/src/http/http.ml
index 8f4812e8..e62225c5 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -5,8 +5,8 @@
 
 
 
-module Dream = Dream__pure.Inmost
-module Stream = Dream__pure.Stream
+module Dream = Dream_pure.Inmost
+module Stream = Dream_pure.Stream
 
 
 
@@ -763,8 +763,8 @@ let serve_with_maybe_https
 
   let prefix =
     prefix
-    |> Dream__pure.Formats.from_path
-    |> Dream__pure.Formats.drop_trailing_slash
+    |> Dream_pure.Formats.from_path
+    |> Dream_pure.Formats.drop_trailing_slash
   in
   let app = Dream.new_app (Error_handler.app error_handler) prefix in
 
diff --git a/src/middleware/catch.ml b/src/middleware/catch.ml
index 2eda9ec6..582104eb 100644
--- a/src/middleware/catch.ml
+++ b/src/middleware/catch.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/content_length.ml b/src/middleware/content_length.ml
index 549f2e56..e2e2b9bc 100644
--- a/src/middleware/content_length.ml
+++ b/src/middleware/content_length.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/cookie.ml b/src/middleware/cookie.ml
index 06b3c22b..dd2a2789 100644
--- a/src/middleware/cookie.ml
+++ b/src/middleware/cookie.ml
@@ -5,8 +5,8 @@
 
 
 
-module Formats = Dream__pure.Formats
-module Dream = Dream__pure.Inmost
+module Formats = Dream_pure.Formats
+module Dream = Dream_pure.Inmost
 module Cipher = Dream__cipher.Cipher
 
 
diff --git a/src/middleware/csrf.ml b/src/middleware/csrf.ml
index 1b615c4c..d60a260f 100644
--- a/src/middleware/csrf.ml
+++ b/src/middleware/csrf.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 module Cipher = Dream__cipher.Cipher
 
 
@@ -25,7 +25,7 @@ let csrf_token ~now ?(valid_for = default_valid_for) request =
   ]
   |> Yojson.Basic.to_string
   |> Cipher.encrypt ~associated_data:field_name request
-  |> Dream__pure.Formats.to_base64url
+  |> Dream_pure.Formats.to_base64url
 
 let log =
   Log.sub_log field_name
@@ -38,7 +38,7 @@ type csrf_result = [
 ]
 
 let verify_csrf_token ~now request token = Lwt.return @@
-  match Dream__pure.Formats.from_base64url token with
+  match Dream_pure.Formats.from_base64url token with
   | None ->
     log.warning (fun log -> log ~request "CSRF token not Base64-encoded");
     `Invalid
diff --git a/src/middleware/dune b/src/middleware/dune
index 9c4f3c7f..77a2f0b5 100644
--- a/src/middleware/dune
+++ b/src/middleware/dune
@@ -4,7 +4,7 @@
  (libraries
   digestif
   dream.cipher
-  dream.pure
+  dream-pure
   fmt
   logs
   lwt
diff --git a/src/middleware/echo.ml b/src/middleware/echo.ml
index cb22a128..b4f3ff73 100644
--- a/src/middleware/echo.ml
+++ b/src/middleware/echo.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/error_template.eml.ml b/src/middleware/error_template.eml.ml
index 7414c646..27f8d7ad 100644
--- a/src/middleware/error_template.eml.ml
+++ b/src/middleware/error_template.eml.ml
@@ -7,8 +7,8 @@
 
 module Dream =
 struct
-  include Dream__pure.Inmost
-  include Dream__pure.Formats
+  include Dream_pure.Inmost
+  include Dream_pure.Formats
 end
 
 let render ~debug_dump ~code ~reason =
diff --git a/src/middleware/flash.ml b/src/middleware/flash.ml
index 6f1d352d..a2457295 100644
--- a/src/middleware/flash.ml
+++ b/src/middleware/flash.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/form.ml b/src/middleware/form.ml
index f1886da2..cd302621 100644
--- a/src/middleware/form.ml
+++ b/src/middleware/form.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
@@ -58,7 +58,7 @@ let form ?(csrf = true) ~now request =
   match Dream.header "Content-Type" request with
   | Some "application/x-www-form-urlencoded" ->
     let%lwt body = Dream.body request in
-    let form = Dream__pure.Formats.from_form_urlencoded body in
+    let form = Dream_pure.Formats.from_form_urlencoded body in
     if csrf then
     sort_and_check_form ~now (fun string -> string) form request
     else
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index 68b6da62..271b02a0 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -29,7 +29,7 @@
 
 module Dream =
 struct
-  include Dream__pure.Inmost
+  include Dream_pure.Inmost
   module Request_id = Request_id
 end
 
diff --git a/src/middleware/lowercase_headers.ml b/src/middleware/lowercase_headers.ml
index 9d5afec3..43be729b 100644
--- a/src/middleware/lowercase_headers.ml
+++ b/src/middleware/lowercase_headers.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/origin_referrer_check.ml b/src/middleware/origin_referrer_check.ml
index 9f96bd77..a46d1878 100644
--- a/src/middleware/origin_referrer_check.ml
+++ b/src/middleware/origin_referrer_check.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/request_id.ml b/src/middleware/request_id.ml
index b4b7f51b..0e27bacf 100644
--- a/src/middleware/request_id.ml
+++ b/src/middleware/request_id.ml
@@ -9,7 +9,7 @@
    be built-in code. So it's probably best to look into building in request_id,
    and getting rid of the concept of built-in middleware. *)
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/router.ml b/src/middleware/router.ml
index e374e5ca..32103e30 100644
--- a/src/middleware/router.ml
+++ b/src/middleware/router.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/router.mli b/src/middleware/router.mli
index fd3cccd9..ca81eb2e 100644
--- a/src/middleware/router.mli
+++ b/src/middleware/router.mli
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 type route
 
diff --git a/src/middleware/session.ml b/src/middleware/session.ml
index 7e70ef32..0f6c34a9 100644
--- a/src/middleware/session.ml
+++ b/src/middleware/session.ml
@@ -7,7 +7,7 @@
 
 (* https://cheatsheetseries.owasp.org/cheatsheets/Session_Management_Cheat_Sheet.html *)
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
@@ -89,10 +89,10 @@ let (|>?) =
    two IDs among 100,000,000,000 concurrent sessions (5x the monthly traffic of
    google.com in February 2021). *)
 let new_id () =
-  Dream__cipher.Random.random 18 |> Dream__pure.Formats.to_base64url
+  Dream__cipher.Random.random 18 |> Dream_pure.Formats.to_base64url
 
 let new_label () =
-  Dream__cipher.Random.random 9 |> Dream__pure.Formats.to_base64url
+  Dream__cipher.Random.random 9 |> Dream_pure.Formats.to_base64url
 
 let version_session_id id =
   "0" ^ id
diff --git a/src/middleware/site_prefix.ml b/src/middleware/site_prefix.ml
index 7c9fa250..92a3958b 100644
--- a/src/middleware/site_prefix.ml
+++ b/src/middleware/site_prefix.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/tag.eml.ml b/src/middleware/tag.eml.ml
index 6e012436..6942e2b1 100644
--- a/src/middleware/tag.eml.ml
+++ b/src/middleware/tag.eml.ml
@@ -7,8 +7,8 @@
 
 module Dream =
 struct
-  include Dream__pure.Formats
-  include Dream__pure.Method
+  include Dream_pure.Formats
+  include Dream_pure.Method
 end
 
 (* TODO Include the path prefix. *)
diff --git a/src/middleware/upload.ml b/src/middleware/upload.ml
index 0ffde2b7..16143024 100644
--- a/src/middleware/upload.ml
+++ b/src/middleware/upload.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 let field_to_string (request : Dream.request) field =
   let open Multipart_form in
diff --git a/src/mirage/dune b/src/mirage/dune
index bd97dc89..6f9f8613 100644
--- a/src/mirage/dune
+++ b/src/mirage/dune
@@ -8,7 +8,7 @@
   dream.cipher
   dream.localhost
   dream.middleware
-  dream.pure
+  dream-pure
   dream.h2
   dream.httpaf
   lwt
diff --git a/src/pure/dune b/src/pure/dune
index 0d479ebf..093a25cf 100644
--- a/src/pure/dune
+++ b/src/pure/dune
@@ -1,6 +1,6 @@
 (library
- (public_name dream.pure)
- (name dream__pure)
+ (public_name dream-pure)
+ (name dream_pure)
  (libraries
   base64
   bigstringaf
diff --git a/src/sql/dune b/src/sql/dune
index 8f8fb4a1..7966abac 100644
--- a/src/sql/dune
+++ b/src/sql/dune
@@ -6,7 +6,7 @@
   caqti-lwt
   dream.cipher
   dream.middleware
-  dream.pure
+  dream-pure
   uri
   yojson)
  (preprocess (pps lwt_ppx))
diff --git a/src/sql/session.ml b/src/sql/session.ml
index ea5bf26f..8a37895d 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 module Cookie = Dream__middleware.Cookie
 module Session = Dream__middleware.Session
 
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index 223f963a..4e97dbdf 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/unix/dune b/src/unix/dune
index 95128180..824895de 100644
--- a/src/unix/dune
+++ b/src/unix/dune
@@ -3,7 +3,7 @@
  (name dream__unix)
  (libraries
   digestif
-  dream.pure
+  dream-pure
   lwt.unix
   magic-mime
  )
diff --git a/src/unix/static.ml b/src/unix/static.ml
index 46c5b688..744ed55b 100644
--- a/src/unix/static.ml
+++ b/src/unix/static.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream__pure.Inmost
+module Dream = Dream_pure.Inmost
 
 
 
@@ -17,7 +17,7 @@ module Dream = Dream__pure.Inmost
 let mime_lookup filename =
   let content_type =
     match Magic_mime.lookup filename with
-    | "text/html" -> Dream__pure.Formats.text_html
+    | "text/html" -> Dream_pure.Formats.text_html
     | content_type -> content_type
   in
   ["Content-Type", content_type]
diff --git a/test/expect/middleware/dune b/test/expect/middleware/dune
index 8aef70e3..fb43c9d0 100644
--- a/test/expect/middleware/dune
+++ b/test/expect/middleware/dune
@@ -4,7 +4,7 @@
   base
   dream
   dream.middleware
-  dream.pure
+  dream-pure
   lwt
   lwt.unix
   ppx_expect.common
diff --git a/test/expect/middleware/router.ml b/test/expect/middleware/router.ml
index 22599c80..a4c380a7 100644
--- a/test/expect/middleware/router.ml
+++ b/test/expect/middleware/router.ml
@@ -10,7 +10,7 @@ let () =
 
 let path request =
   Dream.path request
-  |> Dream__pure.Formats.make_path
+  |> Dream_pure.Formats.make_path
 
 
 
@@ -90,7 +90,7 @@ let show ?(prefix = "/") ?(method_ = `GET) target router =
         Dream.client_stream response
         |> Obj.magic (* TODO Needs to be replaced by exposing read_until_close
                              as a function on abstract streams. *)
-        |> Dream__pure.Stream.read_until_close
+        |> Dream_pure.Stream.read_until_close
         |> Lwt_main.run
       in
       let status = Dream.status response in
diff --git a/test/expect/pure/dune b/test/expect/pure/dune
index f0bbebdc..8e509ce2 100644
--- a/test/expect/pure/dune
+++ b/test/expect/pure/dune
@@ -5,7 +5,7 @@
   dream
   dream.cipher
   dream.middleware
-  dream.pure
+  dream-pure
   lwt
   lwt.unix
   ppx_expect.common
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index edd1f877..90a89410 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -5,7 +5,7 @@
 
 
 
-module Stream = Dream__pure.Stream
+module Stream = Dream_pure.Stream
 
 
 

From 655be1f754606950efcca11bf40e990bc48efaf9 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Dec 2021 14:48:57 +0300
Subject: [PATCH 068/312] Begin delimiting dream-pure with an .mli file

---
 src/cipher/cipher.ml                    |  13 +-
 src/dream.ml                            |  53 ++-
 src/graphql/graphql.ml                  |  18 +-
 src/http/adapt.ml                       |   4 +-
 src/http/error_handler.ml               |  32 +-
 src/http/error_handler.mli              |   2 +-
 src/http/http.ml                        |   4 +-
 src/middleware/catch.ml                 |   7 +-
 src/middleware/content_length.ml        |   2 +-
 src/middleware/cookie.ml                |   2 +-
 src/middleware/csrf.ml                  |   2 +-
 src/middleware/echo.ml                  |   9 +-
 src/middleware/error_template.eml.ml    |   7 +-
 src/middleware/flash.ml                 |   2 +-
 src/middleware/form.ml                  |   2 +-
 src/middleware/log.ml                   |  17 +-
 src/middleware/lowercase_headers.ml     |   2 +-
 src/middleware/origin_referrer_check.ml |  21 +-
 src/middleware/request_id.ml            |   2 +-
 src/middleware/router.ml                |   2 +-
 src/middleware/router.mli               |   2 +-
 src/middleware/session.ml               |   2 +-
 src/middleware/site_prefix.ml           |  10 +-
 src/middleware/tag.eml.ml               |   7 +-
 src/middleware/upload.ml                |  26 +-
 src/pure/dream_pure.ml                  |  14 +
 src/pure/dream_pure.mli                 | 478 ++++++++++++++++++++++++
 src/pure/inmost.ml                      |  93 ++---
 src/pure/stream.mli                     | 152 --------
 src/sql/session.ml                      |   2 +-
 src/sql/sql.ml                          |   2 +-
 src/unix/static.ml                      |  29 +-
 32 files changed, 743 insertions(+), 277 deletions(-)
 create mode 100644 src/pure/dream_pure.ml
 create mode 100644 src/pure/dream_pure.mli
 delete mode 100644 src/pure/stream.mli

diff --git a/src/cipher/cipher.ml b/src/cipher/cipher.ml
index a2c3879e..85a5b258 100644
--- a/src/cipher/cipher.ml
+++ b/src/cipher/cipher.ml
@@ -112,25 +112,16 @@ struct
         | Some plaintext -> Some (Cstruct.to_string plaintext)
 end
 
-(* TODO Ideally, get rid of this open. *)
-open Dream_pure.Inmost
-
-let encryption_secret request =
-  List.hd request.specific.app.secrets
-
-let decryption_secrets request =
-  request.specific.app.secrets
-
 let encrypt ?associated_data request plaintext =
   encrypt
     (module AEAD_AES_256_GCM)
     ?associated_data
-    (encryption_secret request)
+    (Dream_pure.encryption_secret request)
     plaintext
 
 let decrypt ?associated_data request ciphertext =
   decrypt
     (module AEAD_AES_256_GCM)
     ?associated_data
-    (decryption_secrets request)
+    (Dream_pure.decryption_secrets request)
     ciphertext
diff --git a/src/dream.ml b/src/dream.ml
index 9696d516..c0eaecd3 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -6,7 +6,7 @@
 
 
 include Dream_pure.Stream
-include Dream_pure.Inmost
+include Dream_pure
 
 include Dream__middleware.Log
 include Dream__middleware.Log.Make (Ptime_clock)
@@ -83,6 +83,45 @@ let log =
 
 include Dream__middleware.Tag
 
+let respond ?status ?code ?headers body =
+  let client_stream = stream (string body) no_writer
+  and server_stream = stream no_reader no_writer in
+  response ?status ?code ?headers client_stream server_stream
+  |> Lwt.return
+
+(* TODO Actually use the request and extract the site prefix. *)
+let redirect ?status ?code ?headers _request location =
+  let status = (status :> redirection option) in
+  let status =
+    match status, code with
+    | None, None -> Some (`See_Other)
+    | _ -> status
+  in
+  (* TODO The streams. *)
+  let client_stream = stream empty no_writer
+  and server_stream = stream no_reader no_writer in
+  response ?status ?code ?headers client_stream server_stream
+  |> with_header "Location" location
+  |> Lwt.return
+
+let stream ?status ?code ?headers f =
+  (* TODO Streams. *)
+  let client_stream = stream empty no_writer
+  and server_stream = stream no_reader no_writer in
+  let response =
+    response ?status ?code ?headers client_stream server_stream
+    |> with_stream
+  in
+  (* TODO Should set up an error handler for this. *)
+  Lwt.async (fun () -> f response);
+  Lwt.return response
+
+let empty ?headers status =
+  respond ?headers ~status ""
+
+let not_found _ =
+  respond ~status:`Not_Found ""
+
 let now () = Ptime.to_float_s (Ptime.v (Ptime_clock.now_d_ps ()))
 
 let form = form ~now
@@ -91,3 +130,15 @@ let csrf_token = csrf_token ~now
 let verify_csrf_token = verify_csrf_token ~now
 let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
   form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
+
+let request ?client ?method_ ?target ?version ?headers body =
+  (* TODO Streams. *)
+  let client_stream = Dream_pure.Stream.stream no_reader no_writer
+  and server_stream = Dream_pure.Stream.stream (string body) no_writer in
+  request ?client ?method_ ?target ?version ?headers client_stream server_stream
+
+let response ?status ?code ?headers body =
+  (* TODO Streams. *)
+  let client_stream = Dream_pure.Stream.stream (string body) no_writer
+  and server_stream = Dream_pure.Stream.stream no_reader no_writer in
+  response ?status ?code ?headers client_stream server_stream
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index de07a9b0..c63c940f 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
@@ -282,7 +282,11 @@ let graphql make_context schema = fun request ->
         (handle_over_websocket make_context schema (Hashtbl.create 16) request)
     | _ ->
       log.warning (fun log -> log ~request "Upgrade: websocket header missing");
-      Dream.empty `Not_Found
+      (* TODO Simplify stream creation. *)
+      let client_stream = Dream.Stream.(stream empty no_writer)
+      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      Dream.response ~status:`Not_Found client_stream server_stream
+      |> Lwt.return
     end
 
   | `POST ->
@@ -310,13 +314,19 @@ let graphql make_context schema = fun request ->
     | _ ->
       log.warning (fun log -> log ~request
         "Content-Type not 'application/json'");
-      Dream.empty `Bad_Request
+      let client_stream = Dream.Stream.(stream empty no_writer)
+      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      Dream.response ~status:`Bad_Request client_stream server_stream
+      |> Lwt.return
     end
 
   | method_ ->
     log.error (fun log -> log ~request
       "Method %s; must be GET or POST" (Dream.method_to_string method_));
-    Dream.empty `Not_Found
+    let client_stream = Dream.Stream.(stream empty no_writer)
+    and server_stream = Dream.Stream.(stream no_reader no_writer) in
+    Dream.response ~status:`Not_Found client_stream server_stream
+    |> Lwt.return
 
 
 
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index 542a652b..fdb1f7a6 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 module Stream = Dream_pure.Stream
 
 
@@ -22,7 +22,7 @@ let address_to_string : Unix.sockaddr -> string = function
 let forward_body_general
     (response : Dream.response)
     (_write_string : ?off:int -> ?len:int -> string -> unit)
-    (write_buffer : ?off:int -> ?len:int -> Stream.buffer -> unit)
+    (write_buffer : ?off:int -> ?len:int -> Dream.buffer -> unit)
     http_flush
     close =
 
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 43d129de..d6a4cd0e 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
@@ -176,7 +176,10 @@ let customize template (error : Dream.error) =
           | `Server -> `Internal_Server_Error
           | `Client -> `Bad_Request
         in
-        Dream.response ~status ""
+        (* TODO Simplify the streams creation. *)
+        let client_stream = Dream.Stream.(stream empty no_writer)
+        and server_stream = Dream.Stream.(stream no_reader no_writer) in
+        Dream.response ~status client_stream server_stream
     in
 
     (* No need to catch errors when calling the template, because every call
@@ -238,9 +241,19 @@ let respond_with_option f =
       f ()
       |> Lwt.map (function
         | Some response -> response
-        | None -> Dream.response ~status:`Internal_Server_Error ""))
+        | None ->
+          (* TODO Simplify streams. *)
+          let client_stream = Dream.Stream.(stream empty no_writer)
+          and server_stream = Dream.Stream.(stream no_reader no_writer) in
+          Dream.response
+            ~status:`Internal_Server_Error client_stream server_stream))
     (fun () ->
-      Dream.empty `Internal_Server_Error)
+      (* TODO Simplify streams. *)
+      let client_stream = Dream.Stream.(stream empty no_writer)
+      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      Dream.response
+        ~status:`Internal_Server_Error client_stream server_stream
+      |> Lwt.return)
 
 
 
@@ -316,9 +329,16 @@ let app
 
 
 
+(* TODO Simplify streams. *)
 let default_response = function
-  | `Server -> Dream.response ~status:`Internal_Server_Error ""
-  | `Client -> Dream.response ~status:`Bad_Request ""
+  | `Server ->
+    let client_stream = Dream.Stream.(stream empty no_writer)
+    and server_stream = Dream.Stream.(stream no_reader no_writer) in
+    Dream.response ~status:`Internal_Server_Error client_stream server_stream
+  | `Client ->
+    let client_stream = Dream.Stream.(stream empty no_writer)
+    and server_stream = Dream.Stream.(stream no_reader no_writer) in
+    Dream.response ~status:`Bad_Request client_stream server_stream
 
 let httpaf
     app user's_error_handler =
diff --git a/src/http/error_handler.mli b/src/http/error_handler.mli
index 667f271f..cea4917e 100644
--- a/src/http/error_handler.mli
+++ b/src/http/error_handler.mli
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
diff --git a/src/http/http.ml b/src/http/http.ml
index e62225c5..97cbae38 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 module Stream = Dream_pure.Stream
 
 
@@ -803,7 +803,7 @@ let serve_with_maybe_https
         user's_dream_handler
 
     | `OpenSSL | `OCaml_TLS as tls_library ->
-      app.https <- true;
+      Dream.set_https true app;
 
       (* TODO Writing temporary files is extremely questionable for anything
          except the fake localhost certificate. This needs loud warnings. IIRC
diff --git a/src/middleware/catch.ml b/src/middleware/catch.ml
index 582104eb..01cc30ca 100644
--- a/src/middleware/catch.ml
+++ b/src/middleware/catch.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
@@ -44,7 +44,8 @@ let catch_errors next_handler request =
           will_send_response = true;
         } in
 
-        let user's_error_handler = (Dream.app request).error_handler in
+        let user's_error_handler =
+          Dream.app_error_handler (Dream.app request) in
         user's_error_handler error
       end
       else
@@ -67,5 +68,5 @@ let catch_errors next_handler request =
         will_send_response = true;
       } in
 
-      let user's_error_handler = (Dream.app request).error_handler in
+      let user's_error_handler = Dream.app_error_handler (Dream.app request) in
       user's_error_handler error)
diff --git a/src/middleware/content_length.ml b/src/middleware/content_length.ml
index e2e2b9bc..20c8b87a 100644
--- a/src/middleware/content_length.ml
+++ b/src/middleware/content_length.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
diff --git a/src/middleware/cookie.ml b/src/middleware/cookie.ml
index dd2a2789..cd6fd8bc 100644
--- a/src/middleware/cookie.ml
+++ b/src/middleware/cookie.ml
@@ -6,7 +6,7 @@
 
 
 module Formats = Dream_pure.Formats
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 module Cipher = Dream__cipher.Cipher
 
 
diff --git a/src/middleware/csrf.ml b/src/middleware/csrf.ml
index d60a260f..13da958b 100644
--- a/src/middleware/csrf.ml
+++ b/src/middleware/csrf.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 module Cipher = Dream__cipher.Cipher
 
 
diff --git a/src/middleware/echo.ml b/src/middleware/echo.ml
index b4f3ff73..2bf28d82 100644
--- a/src/middleware/echo.ml
+++ b/src/middleware/echo.ml
@@ -5,10 +5,15 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
 (* TODO Convert to streaming later. *)
 let echo request =
-  Lwt.map Dream.response (Dream.body request)
+  (* TODO Simplfy this code. Can in fact just pass the request's server stream
+     as the response's client stream. *)
+  let client_stream = Dream.server_stream request in
+  let server_stream = Dream.Stream.(stream no_reader no_writer) in
+  Dream.response client_stream server_stream
+  |> Lwt.return
diff --git a/src/middleware/error_template.eml.ml b/src/middleware/error_template.eml.ml
index 27f8d7ad..b55bb40c 100644
--- a/src/middleware/error_template.eml.ml
+++ b/src/middleware/error_template.eml.ml
@@ -7,9 +7,14 @@
 
 module Dream =
 struct
-  include Dream_pure.Inmost
+  include Dream_pure
   include Dream_pure.Formats
 end
+(* This slightly awkward simulation of the overall Dream module using a
+   composition of internal modules is necessary to get all the helpers at the
+   right positions expected by the EML templater. *)
+
+
 
 let render ~debug_dump ~code ~reason =
   <!DOCTYPE html>
diff --git a/src/middleware/flash.ml b/src/middleware/flash.ml
index a2457295..101de0e8 100644
--- a/src/middleware/flash.ml
+++ b/src/middleware/flash.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
diff --git a/src/middleware/form.ml b/src/middleware/form.ml
index cd302621..804fb7fc 100644
--- a/src/middleware/form.ml
+++ b/src/middleware/form.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index 271b02a0..d32d8081 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -27,11 +27,7 @@
    This is sufficient for attaching a request id to most log messages, in
    practice. *)
 
-module Dream =
-struct
-  include Dream_pure.Inmost
-  module Request_id = Request_id
-end
+module Dream = Dream_pure
 
 
 
@@ -157,7 +153,7 @@ let reporter ~now () =
         match request_id_from_tags with
         | Some _ -> request_id_from_tags
         | None ->
-          Dream.Request_id.get_option ()
+          Request_id.get_option ()
       in
 
       let request_id, request_style =
@@ -211,13 +207,6 @@ let set_async_exception_hook =
 
 let _initialized = ref None
 
-type log_level = [
-  | `Error
-  | `Warning
-  | `Info
-  | `Debug
-]
-
 let to_logs_level l =
   match l with
   | `Error -> Logs.Error
@@ -273,7 +262,7 @@ let sub_log ?level:level_ name =
           match request with
           | None -> Logs.Tag.empty
           | Some request ->
-            match Dream.Request_id.get_option ~request () with
+            match Request_id.get_option ~request () with
             | None -> Logs.Tag.empty
             | Some request_id ->
               Logs.Tag.add logs_lib_tag request_id Logs.Tag.empty
diff --git a/src/middleware/lowercase_headers.ml b/src/middleware/lowercase_headers.ml
index 43be729b..1a4cea4c 100644
--- a/src/middleware/lowercase_headers.ml
+++ b/src/middleware/lowercase_headers.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
diff --git a/src/middleware/origin_referrer_check.ml b/src/middleware/origin_referrer_check.ml
index a46d1878..3668d3ae 100644
--- a/src/middleware/origin_referrer_check.ml
+++ b/src/middleware/origin_referrer_check.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
@@ -30,7 +30,11 @@ let origin_referrer_check inner_handler request =
     | None ->
       log.warning (fun log -> log ~request
         "Origin and Referer headers both missing");
-      Dream.empty `Bad_Request
+      (* TODO Simplify. *)
+      let client_stream = Dream.Stream.(stream empty no_writer)
+      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      Dream.response ~status:`Bad_Request client_stream server_stream
+      |> Lwt.return
 
     (* TODO Also recommend Uri to users. *)
     | Some origin ->
@@ -38,7 +42,12 @@ let origin_referrer_check inner_handler request =
       match Dream.header "Host" request with
       | None ->
         log.warning (fun log -> log ~request "Host header missing");
-        Dream.empty `Bad_Request
+        (* TODO Simplify. *)
+        let client_stream = Dream.Stream.(stream empty no_writer)
+        and server_stream = Dream.Stream.(stream no_reader no_writer) in
+        Dream.response ~status:`Bad_Request client_stream server_stream
+        |> Lwt.return
+
       | Some host ->
 
         let origin_uri = Uri.of_string origin in
@@ -71,5 +80,9 @@ let origin_referrer_check inner_handler request =
         else begin
           log.warning (fun log -> log ~request
             "Origin-Host mismatch: '%s' vs. '%s'" origin host);
-          Dream.empty `Bad_Request
+          (* TODO Simplify. *)
+          let client_stream = Dream.Stream.(stream empty no_writer)
+          and server_stream = Dream.Stream.(stream no_reader no_writer) in
+          Dream.response ~status:`Bad_Request client_stream server_stream
+          |> Lwt.return
         end
diff --git a/src/middleware/request_id.ml b/src/middleware/request_id.ml
index 0e27bacf..3e8056f0 100644
--- a/src/middleware/request_id.ml
+++ b/src/middleware/request_id.ml
@@ -9,7 +9,7 @@
    be built-in code. So it's probably best to look into building in request_id,
    and getting rid of the concept of built-in middleware. *)
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
diff --git a/src/middleware/router.ml b/src/middleware/router.ml
index 32103e30..b5bc3913 100644
--- a/src/middleware/router.ml
+++ b/src/middleware/router.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
diff --git a/src/middleware/router.mli b/src/middleware/router.mli
index ca81eb2e..77161c7f 100644
--- a/src/middleware/router.mli
+++ b/src/middleware/router.mli
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 type route
 
diff --git a/src/middleware/session.ml b/src/middleware/session.ml
index 0f6c34a9..4e984b31 100644
--- a/src/middleware/session.ml
+++ b/src/middleware/session.ml
@@ -7,7 +7,7 @@
 
 (* https://cheatsheetseries.owasp.org/cheatsheets/Session_Management_Cheat_Sheet.html *)
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
diff --git a/src/middleware/site_prefix.ml b/src/middleware/site_prefix.ml
index 92a3958b..cbec6545 100644
--- a/src/middleware/site_prefix.ml
+++ b/src/middleware/site_prefix.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
@@ -25,10 +25,14 @@ let rec match_site_prefix prefix path =
 
 (* TODO The path and prefix representations and accessors need a cleanup. *)
 let chop_site_prefix next_handler request =
-    let prefix = (Dream.app request).site_prefix in
+    let prefix = Dream.site_prefix request in
     match match_site_prefix prefix (Dream.path request) with
     | None ->
-      Dream.empty `Bad_Gateway
+      (* TODO Streams. *)
+      let client_stream = Dream.Stream.(stream empty no_writer)
+      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      Dream.response ~status:`Bad_Gateway client_stream server_stream
+      |> Lwt.return
     | Some path ->
       (* TODO This doesn't need to be recomputed on each request - can cache the
          result in the app. *)
diff --git a/src/middleware/tag.eml.ml b/src/middleware/tag.eml.ml
index 6942e2b1..237197fd 100644
--- a/src/middleware/tag.eml.ml
+++ b/src/middleware/tag.eml.ml
@@ -7,9 +7,14 @@
 
 module Dream =
 struct
+  include Dream_pure
   include Dream_pure.Formats
-  include Dream_pure.Method
 end
+(* This slightly awkward simulation of the overall Dream module using a
+   composition of internal modules is necessary to get all the helpers at the
+   right positions expected by the EML templater. *)
+
+
 
 (* TODO Include the path prefix. *)
 let form_tag
diff --git a/src/middleware/upload.ml b/src/middleware/upload.ml
index 16143024..cd9a024b 100644
--- a/src/middleware/upload.ml
+++ b/src/middleware/upload.ml
@@ -5,7 +5,9 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
+
+
 
 let field_to_string (request : Dream.request) field =
   let open Multipart_form in
@@ -13,8 +15,9 @@ let field_to_string (request : Dream.request) field =
   | Field.Field (field_name, Field.Content_type, v) ->
     (field_name :> string), Content_type.to_string v
   | Field.Field (field_name, Field.Content_disposition, v) ->
-    request.specific.upload.filename <- Content_disposition.filename v ;
-    request.specific.upload.name <- Content_disposition.name v ;
+    let state = Dream.multipart_state request in
+    state.filename <- Content_disposition.filename v ;
+    state.name <- Content_disposition.name v ;
     (field_name :> string), Content_disposition.to_string v
   | Field.Field (field_name, Field.Content_encoding, v) ->
     (field_name :> string), Content_encoding.to_string v
@@ -24,14 +27,15 @@ let field_to_string (request : Dream.request) field =
 let log = Log.sub_log "dream.upload"
 
 let upload_part (request : Dream.request) =
-  match%lwt Lwt_stream.peek request.specific.upload.stream with
+  let state = Dream.multipart_state request in
+  match%lwt Lwt_stream.peek state.stream with
   | None -> Lwt.return_none
   | Some (_uid, _header, stream) ->
     match%lwt Lwt_stream.get stream with
     | Some _ as v -> Lwt.return v
     | None ->
       log.debug (fun m -> m "End of the part.") ;
-      let%lwt () = Lwt_stream.junk request.specific.upload.stream in
+      let%lwt () = Lwt_stream.junk state.stream in
       (* XXX(dinosaure): delete the current part from the [stream]. *)
       Lwt.return_none
 
@@ -40,7 +44,8 @@ let identify _ = object end
 type part = string option * string option * ((string * string) list)
 
 let rec state (request : Dream.request) =
-  let stream = request.specific.upload.stream in
+  let state' = Dream.multipart_state request in
+  let stream = state'.stream in
   match%lwt Lwt_stream.peek stream with
   | None -> let%lwt () = Lwt_stream.junk stream in Lwt.return_none
   | Some (_, headers, _stream) ->
@@ -50,11 +55,12 @@ let rec state (request : Dream.request) =
       |> List.map (field_to_string request)
     in
     let part =
-      request.specific.upload.name, request.specific.upload.filename, headers in
+      state'.name, state'.filename, headers in
     Lwt.return (Some part)
 
 and upload (request : Dream.request) =
-  match request.specific.upload.state_init with
+  let state' = Dream.multipart_state request in
+  match state'.state_init with
   | false ->
     state request
 
@@ -79,8 +85,8 @@ and upload (request : Dream.request) =
       let `Parse th, stream =
         Multipart_form_lwt.stream ~identify body content_type in
       Lwt.async (fun () -> let%lwt _ = th in Lwt.return_unit);
-      request.specific.upload.stream <- stream;
-      request.specific.upload.state_init <- false;
+      state'.stream <- stream;
+      state'.state_init <- false;
       state request
 
 type multipart_form =
diff --git a/src/pure/dream_pure.ml b/src/pure/dream_pure.ml
new file mode 100644
index 00000000..ed3ecab7
--- /dev/null
+++ b/src/pure/dream_pure.ml
@@ -0,0 +1,14 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+module Formats = Formats
+
+module Stream = Stream
+type buffer = Stream.buffer
+type stream = Stream.stream
+
+include Inmost
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
new file mode 100644
index 00000000..95ec6e1e
--- /dev/null
+++ b/src/pure/dream_pure.mli
@@ -0,0 +1,478 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+type 'a message
+
+type client
+type server
+
+type request = client message
+type response = server message
+
+type 'a promise = 'a Lwt.t
+type handler = request -> response promise
+type middleware = handler -> handler
+
+type buffer =
+  (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+type stream
+
+
+
+type method_ = [
+  | `GET
+  | `POST
+  | `PUT
+  | `DELETE
+  | `HEAD
+  | `CONNECT
+  | `OPTIONS
+  | `TRACE
+  | `PATCH
+  | `Method of string
+]
+
+val method_to_string : [< method_ ] -> string
+val string_to_method : string -> method_
+val methods_equal : [< method_ ] -> [< method_ ] -> bool
+val normalize_method : [< method_ ] -> method_
+
+
+
+type informational = [
+  | `Continue
+  | `Switching_Protocols
+]
+
+type successful = [
+  | `OK
+  | `Created
+  | `Accepted
+  | `Non_Authoritative_Information
+  | `No_Content
+  | `Reset_Content
+  | `Partial_Content
+]
+
+type redirection = [
+  | `Multiple_Choices
+  | `Moved_Permanently
+  | `Found
+  | `See_Other
+  | `Not_Modified
+  | `Temporary_Redirect
+  | `Permanent_Redirect
+]
+
+type client_error = [
+  | `Bad_Request
+  | `Unauthorized
+  | `Payment_Required
+  | `Forbidden
+  | `Not_Found
+  | `Method_Not_Allowed
+  | `Not_Acceptable
+  | `Proxy_Authentication_Required
+  | `Request_Timeout
+  | `Conflict
+  | `Gone
+  | `Length_Required
+  | `Precondition_Failed
+  | `Payload_Too_Large
+  | `URI_Too_Long
+  | `Unsupported_Media_Type
+  | `Range_Not_Satisfiable
+  | `Expectation_Failed
+  | `Misdirected_Request
+  | `Too_Early
+  | `Upgrade_Required
+  | `Precondition_Required
+  | `Too_Many_Requests
+  | `Request_Header_Fields_Too_Large
+  | `Unavailable_For_Legal_Reasons
+]
+
+type server_error = [
+  | `Internal_Server_Error
+  | `Not_Implemented
+  | `Bad_Gateway
+  | `Service_Unavailable
+  | `Gateway_Timeout
+  | `HTTP_Version_Not_Supported
+]
+
+type standard_status = [
+  | informational
+  | successful
+  | redirection
+  | client_error
+  | server_error
+]
+
+type status = [
+  | standard_status
+  | `Status of int
+]
+
+val status_to_string : [< status ] -> string
+val status_to_reason : [< status ] -> string option
+val status_to_int : [< status ] -> int
+val int_to_status : int -> status
+val is_informational : [< status ] -> bool
+val is_successful : [< status ] -> bool
+val is_redirection : [< status ] -> bool
+val is_client_error : [< status ] -> bool
+val is_server_error : [< status ] -> bool
+val status_codes_equal : [< status ] -> [< status ] -> bool
+val normalize_status : [< status ] -> status
+
+
+
+val client : request -> string
+val https : request -> bool
+val method_ : request -> method_
+val target : request -> string
+val prefix : request -> string
+val internal_prefix : request -> string list
+val path : request -> string list
+val version : request -> int * int
+val encryption_secret : request -> string
+val decryption_secrets : request -> string list
+(* TODO Get the encryption secrets out of here and into the server only.
+   Also try to move the whole "app" mechanism to the server only. However, how
+   will that interact with in-process testing? *)
+val site_prefix : request -> string list
+(* TODO This will be moved out of dream-pure and become just a server-side
+   middleware.. *)
+val with_client : string -> request -> request
+val with_method_ : [< method_ ] -> request -> request
+val with_prefix : string list -> request -> request
+val with_path : string list -> request -> request
+val with_version : int * int -> request -> request
+(* TODO Path handling should also be done by server-side-only helpers. *)
+val query : string -> request -> string option
+val queries : string -> request -> string list
+val all_queries : request -> (string * string) list
+
+
+
+val response :
+  ?status:[< status ] ->
+  ?code:int ->
+  ?headers:(string * string) list ->
+  stream ->
+  stream ->
+    response
+
+val html :
+  ?status:[< status ] ->
+  ?code:int ->
+  ?headers:(string * string) list ->
+    string -> response promise
+(* TODO Remove these. *)
+
+val json :
+  ?status:[< status ] ->
+  ?code:int ->
+  ?headers:(string * string) list ->
+    string -> response promise
+
+val status : response -> status
+
+
+
+val header : string -> 'a message -> string option
+val headers : string -> 'a message -> string list
+val all_headers : 'a message -> (string * string) list
+val has_header : string -> 'a message -> bool
+val add_header : string -> string -> 'a message -> 'a message
+val drop_header : string -> 'a message -> 'a message
+val with_header : string -> string -> 'a message -> 'a message
+val with_all_headers : (string * string) list -> 'a message -> 'a message
+
+
+
+val all_cookies : request -> (string * string) list
+(* TODO Should become server-side-only. *)
+
+
+
+val body : 'a message -> string promise
+val with_body : string -> response -> response
+val read : request -> string option promise
+val with_stream : 'a message -> 'a message
+val write : response -> string -> unit promise
+val flush : response -> unit promise
+val close_stream : response -> unit promise
+(* TODO This will need to read different streams depending on whether it is
+   passed a request or a response. *)
+val client_stream : 'a message -> stream
+val server_stream : 'a message -> stream
+val with_client_stream : stream -> 'a message -> 'a message
+val next :
+  stream ->
+  data:(buffer -> int -> int -> bool -> bool -> unit) ->
+  close:(int -> unit) ->
+  flush:(unit -> unit) ->
+  ping:(buffer -> int -> int -> unit) ->
+  pong:(buffer -> int -> int -> unit) ->
+    unit
+val write_buffer :
+  ?offset:int -> ?length:int -> response -> buffer -> unit promise
+
+module Stream :
+sig
+type reader
+
+type writer
+
+type read =
+  data:(buffer -> int -> int -> bool -> bool -> unit) ->
+  close:(int -> unit) ->
+  flush:(unit -> unit) ->
+  ping:(buffer -> int -> int -> unit) ->
+  pong:(buffer -> int -> int -> unit) ->
+    unit
+(** A reading function. Awaits the next event on the stream. For each call of a
+    reading function, one of the callbacks will eventually be called, according
+    to which event occurs next on the stream. *)
+
+type write =
+  close:(int -> unit) ->
+  (unit -> unit) ->
+    unit
+(** A writing function. Pushes an event into a stream. May take additional
+    arguments before [~ok]. *)
+
+val reader : read:read -> close:(int -> unit) -> reader
+(** Creates a read-only stream from the given reader. [~close] is called in
+    response to {!Stream.close}. It doesn't need to call {!Stream.close} again
+    on the stream. It should be used to free any underlying resources. *)
+
+val empty : reader
+(** A read-only stream whose reading function always calls its [~close]
+    callback. *)
+
+val string : string -> reader
+(** A read-only stream which calls its [~data] callback once with the contents
+    of the given string, and then always calls [~close]. *)
+
+val pipe : unit -> reader * writer
+(** A stream which matches each call of the reading function to one call of its
+    writing functions. For example, calling {!Stream.flush} on a pipe will cause
+    the reader to call its [~flush] callback. *)
+
+val writer :
+  ready:write ->
+  write:(buffer -> int -> int -> bool -> bool -> write) ->
+  flush:write ->
+  ping:(buffer -> int -> int -> write) ->
+  pong:(buffer -> int -> int -> write) ->
+  close:(int -> unit) ->
+    writer
+
+val no_reader : reader
+
+val no_writer : writer
+
+val stream : reader -> writer -> stream
+(* TODO Consider tupling the arguments, as that will make it easier to pass the
+   result of Stream.pipe. *)
+
+val close : stream -> int -> unit
+(** Closes the given stream. Causes a pending reader or writer to call its
+    [~close] callback. *)
+
+val read : stream -> read
+(** Awaits the next stream event. See {!Stream.type-read}. *)
+
+val read_convenience : stream -> string option promise
+(** A wrapper around {!Stream.read} that converts [~data] with content [s] into
+    [Some s], and [~close] into [None], and uses them to resolve a promise.
+    [~flush] is ignored. *)
+
+val read_until_close : stream -> string promise
+(** Reads a stream completely until [~close], and accumulates the data into a
+    string. *)
+
+val ready : stream -> write
+
+val write : stream -> buffer -> int -> int -> bool -> bool -> write
+(** A writing function that sends a data buffer on the given stream. No more
+    writing functions should be called on the stream until this function calls
+    [~ok]. The [bool] arguments are whether the message is binary and whether
+    the [FIN] flag should be set. They are ignored by non-WebSocket streams.
+
+    Note: [FIN] is provided as part of the write call, rather than being a
+    separate stream event (like [flush]), because the WebSocket writer needs to
+    immediately know when the last chunk of the last frame in a message is
+    provided, to transmit the [FIN] bit. If [FIN] were to be provided as a
+    separate event, the WebSocket writer would have to buffer each one chunk, in
+    case the next stream event was [FIN], in order to be able to decide whether
+    to set the [FIN] bit or not. This is awkward and inefficient, as it
+    introduces an unnecessary delay into the writer, as if the next event is not
+    [FIN], the next data chunk might take an arbitrary amount of time to be
+    generated by the writing user code. *)
+
+val flush : stream -> write
+(** A writing function that asks for the given stream to be flushed. The meaning
+    of flushing depends on the implementation of the stream. No more writing
+    functions should be called on the stream until this function calls [~ok]. *)
+
+val ping : stream -> buffer -> int -> int -> write
+(** A writing function that sends a ping event on the given stream. This is only
+    meaningful for WebSockets. *)
+
+val pong : stream -> buffer -> int -> int -> write
+(** A writing function that sends a pong event on the given stream. This is only
+    meaningful for WebSockets. *)
+end
+
+(* TODO Remove to server-side code. *)
+type multipart_state = {
+  mutable state_init : bool;
+  mutable name : string option;
+  mutable filename : string option;
+  mutable stream : (< > * Multipart_form.Header.t * string Lwt_stream.t) Lwt_stream.t;
+}
+
+val multipart_state : request -> multipart_state
+
+
+
+val no_middleware : middleware
+val pipeline : middleware list -> middleware
+
+
+
+type websocket = stream
+val websocket :
+  ?headers:(string * string) list ->
+  (websocket -> unit promise) ->
+    response promise
+val send : ?kind:[< `Text | `Binary ] -> websocket -> string -> unit promise
+val receive : websocket -> string option promise
+val close_websocket : ?code:int -> websocket -> unit promise
+val is_websocket : response -> (websocket -> unit promise) option
+
+
+
+(* TODO All of this should become server-side-only once the error handling
+   middleware is clarified. *)
+type app
+
+type log_level = [
+  | `Error
+  | `Warning
+  | `Info
+  | `Debug
+]
+
+type error = {
+  condition : [
+    | `Response of response
+    | `String of string
+    | `Exn of exn
+  ];
+  layer : [
+    | `App
+    | `HTTP
+    | `HTTP2
+    | `TLS
+    | `WebSocket
+  ];
+  caused_by : [
+    | `Server
+    | `Client
+  ];
+  request : request option;
+  response : response option;
+  client : string option;
+  severity : log_level;
+  debug : bool;
+  will_send_response : bool;
+}
+
+type error_handler = error -> response option promise
+
+val new_app : (error -> response Lwt.t) -> string list -> app
+val app : request -> app
+val debug : app -> bool
+val set_debug : bool -> app -> unit
+val app_error_handler : app -> (error -> response promise)
+val set_secrets : string list -> app -> unit
+val set_https : bool -> app -> unit
+val request_from_http :
+  app:app ->
+  client:string ->
+  method_:method_ ->
+  target:string ->
+  version:int * int ->
+  headers:(string * string) list ->
+  stream ->
+    request
+
+
+
+module Formats :
+sig
+  val html_escape : string -> string
+  val to_base64url : string -> string
+  val from_base64url : string -> string option
+  val to_percent_encoded : ?international:bool -> string -> string
+  val from_percent_encoded : string -> string
+  val to_form_urlencoded : (string * string) list -> string
+  val from_form_urlencoded : string -> (string * string) list
+  val from_cookie : string -> (string * string) list
+  val to_set_cookie :
+    ?expires:float ->
+    ?max_age:float ->
+    ?domain:string ->
+    ?path:string ->
+    ?secure:bool ->
+    ?http_only:bool ->
+    ?same_site:[ `Strict | `Lax | `None ] ->
+      string -> string -> string
+  val split_target : string -> string * string
+  val from_path : string -> string list
+  val to_path : ?relative:bool -> ?international:bool -> string list -> string
+  val drop_trailing_slash : string list -> string list
+  val text_html : string
+  val application_json : string
+end
+
+
+
+type 'a local
+val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a local
+val local : 'a local -> 'b message -> 'a option
+val with_local : 'a local -> 'a -> 'b message -> 'b message
+val fold_locals : (string -> string -> 'a -> 'a) -> 'a -> 'b message -> 'a
+
+type 'a global
+val new_global :
+  ?name:string -> ?show_value:('a -> string) -> (unit -> 'a) -> 'a global
+val global : 'a global -> request -> 'a
+(* TODO Get rid of globals completely as a concept, once the site_prefix
+   middleware is clarified. *)
+val fold_globals : (string -> string -> 'a -> 'a) -> 'a -> request -> 'a
+
+
+
+(* TODO Delete once requests are mutable. *)
+val request :
+  ?client:string ->
+  ?method_:[< method_ ] ->
+  ?target:string ->
+  ?version:int * int ->
+  ?headers:(string * string) list ->
+  stream ->
+  stream ->
+    request
+val first : 'a message -> 'a message
+val last : 'a message -> 'a message
+val sort_headers : (string * string) list -> (string * string) list
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index f2867332..4e712a7c 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -8,6 +8,8 @@
 include Method
 include Status
 
+
+
 (* Used for converting the stream interface of [multipart_form] into the pull
    interface of Dream.
 
@@ -78,6 +80,13 @@ and app = {
 
 and error_handler = error -> response option Lwt.t
 
+and log_level = [
+  | `Error
+  | `Warning
+  | `Info
+  | `Debug
+]
+
 and error = {
   condition : [
     | `Response of response
@@ -115,6 +124,10 @@ let debug app =
 let set_debug value app =
   app.app_debug <- value
 
+(* TODO Remove. *)
+let app_error_handler app =
+  app.error_handler
+
 (* TODO Delete; now using key. *)
 let secret app =
   List.hd app.secrets
@@ -122,6 +135,12 @@ let secret app =
 let set_secrets secrets app =
   app.secrets <- secrets
 
+let set_https https app =
+  app.https <- https
+
+let site_prefix request =
+  request.specific.app.site_prefix
+
 let new_app error_handler site_prefix = {
   globals = ref Scope.empty;
   app_debug = false;
@@ -472,7 +491,8 @@ let request
     ?(target = "/")
     ?(version = 1, 1)
     ?(headers = [])
-    body =
+    client_stream
+    server_stream =
 
   let method_ =
     match (method_ :> method_ option) with
@@ -499,8 +519,8 @@ let request
       upload = initial_multipart_state ();
     };
     headers;
-    client_stream = Stream.(stream no_reader no_writer);
-    server_stream = Stream.(stream (string body) no_writer);
+    client_stream;
+    server_stream;
     locals = Scope.empty;
     first = request;
     last = ref request;
@@ -509,10 +529,7 @@ let request
   request
 
 let response
-    ?status
-    ?code
-    ?(headers = [])
-    body =
+    ?status ?code ?(headers = []) client_stream server_stream =
 
   let status =
     match status, code with
@@ -527,8 +544,8 @@ let response
       websocket = None;
     };
     headers;
-    client_stream = Stream.(stream (string body) no_writer);
-    server_stream = Stream.(stream no_reader no_writer);
+    client_stream;
+    server_stream;
     (* TODO This fully dead stream should be preallocated. *)
     locals = Scope.empty;
     first = response;
@@ -537,49 +554,29 @@ let response
 
   response
 
-let respond ?status ?code ?headers body =
-  response ?status ?code ?headers body
-  |> Lwt.return
-
 let html ?status ?code ?headers body =
-  response ?status ?code ?headers body
+  (* TODO The streams. *)
+  let client_stream = Stream.(stream (string body) no_writer)
+  and server_stream = Stream.(stream no_reader no_writer) in
+  response ?status ?code ?headers client_stream server_stream
   |> with_header "Content-Type" Formats.text_html
   |> Lwt.return
 
 let json ?status ?code ?headers body =
-  response ?status ?code ?headers body
+  (* TODO The streams. *)
+  let client_stream = Stream.(stream (string body) no_writer)
+  and server_stream = Stream.(stream no_reader no_writer) in
+  response ?status ?code ?headers client_stream server_stream
   |> with_header "Content-Type" Formats.application_json
   |> Lwt.return
 
-(* TODO Actually use the request and extract the site prefix. *)
-let redirect ?status ?code ?headers _request location =
-  let status = (status :> redirection option) in
-  let status =
-    match status, code with
-    | None, None -> Some (`See_Other)
-    | _ -> status
-  in
-  response ?status ?code ?headers ""
-  |> with_header "Location" location
-  |> Lwt.return
-
-let stream ?status ?code ?headers f =
-  let response =
-    response ?status ?code ?headers ""
-    |> with_stream
-  in
-  (* TODO Should set up an error handler for this. *)
-  Lwt.async (fun () -> f response);
-  Lwt.return response
-
-let empty ?headers status =
-  respond ?headers ~status ""
-
-let not_found _ =
-  respond ~status:`Not_Found ""
-
 let websocket ?headers handler =
-  let response = response ?headers ~status:`Switching_Protocols "" in
+  (* TODO Simplify stream creation. *)
+  let client_stream = Stream.(stream empty no_writer)
+  and server_stream = Stream.(stream no_reader no_writer) in
+  let response =
+    response
+      ?headers ~status:`Switching_Protocols client_stream server_stream in
   let response =
     {response with specific =
       {response.specific with websocket = Some handler}}
@@ -621,3 +618,13 @@ let rec pipeline middlewares handler =
 
 let sort_headers headers =
   List.stable_sort (fun (name, _) (name', _) -> compare name name') headers
+
+let encryption_secret request =
+  List.hd request.specific.app.secrets
+
+let decryption_secrets request =
+  request.specific.app.secrets
+
+(* TODO Remove to server-side code. *)
+let multipart_state request =
+  request.specific.upload
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
deleted file mode 100644
index 23278e11..00000000
--- a/src/pure/stream.mli
+++ /dev/null
@@ -1,152 +0,0 @@
-(* This file is part of Dream, released under the MIT license. See LICENSE.md
-   for details, or visit https://github.com/aantron/dream.
-
-   Copyright 2021 Anton Bachin *)
-
-
-
-type buffer =
-  (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
-(** Type abbreviation for byte buffers in the C heap. *)
-
-type 'a promise =
-  'a Lwt.t
-(** Type abbreviation for promises. *)
-
-type reader
-
-type writer
-
-type stream
-(** This module's principal type, the {e stream}.
-
-    Streams are basically just tuples of a reading function and several writing
-    functions. In C++ terms, they are vtables. Different stream objects can have
-    completely different implementations of these functions. Concrete stream
-    constructors, such as {!Stream.empty} and {!Stream.pipe} implement those
-    functions in interesting ways.
-
-    There are three main kinds of streams used in Dream:
-
-    - {e Read-only streams} have the reading function implemented, and the
-      writers raise exceptions when called. These are typically created by the
-      HTTP layer as facades for the underlying HTTP server's request body
-      reader.
-    - {e Pipes} have their reading function connected to their writing
-      functions. Pipes are essentially a synchronization primitive that allows
-      one reader to be satisfied by one writer. These are created for responses,
-      because responses are created deep in the user's Web application, and the
-      HTTP layer reads them later to process the application's writes. Pipes can
-      also be created by middlewares that transform messages bodies, such as for
-      compression.
-    - {e Duplex streams} have the reading function and writing functions
-      implemented, but connected to different streams. This is used primarily
-      for WebSockets, where writing to the stream causes data to be sent to the
-      client, and reading from the stream awaits data to be received from the
-      client.
-
-    Streams are asynchronous. Readers and writers expect callbacks, and call
-    them when underlying operations complete.
-
-    The entire interface is pull-based for flow control. *)
-
-type read =
-  data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(int -> unit) ->
-  flush:(unit -> unit) ->
-  ping:(buffer -> int -> int -> unit) ->
-  pong:(buffer -> int -> int -> unit) ->
-    unit
-(** A reading function. Awaits the next event on the stream. For each call of a
-    reading function, one of the callbacks will eventually be called, according
-    to which event occurs next on the stream. *)
-
-type write =
-  close:(int -> unit) ->
-  (unit -> unit) ->
-    unit
-(** A writing function. Pushes an event into a stream. May take additional
-    arguments before [~ok]. *)
-
-val reader : read:read -> close:(int -> unit) -> reader
-(** Creates a read-only stream from the given reader. [~close] is called in
-    response to {!Stream.close}. It doesn't need to call {!Stream.close} again
-    on the stream. It should be used to free any underlying resources. *)
-
-val empty : reader
-(** A read-only stream whose reading function always calls its [~close]
-    callback. *)
-
-val string : string -> reader
-(** A read-only stream which calls its [~data] callback once with the contents
-    of the given string, and then always calls [~close]. *)
-
-val pipe : unit -> reader * writer
-(** A stream which matches each call of the reading function to one call of its
-    writing functions. For example, calling {!Stream.flush} on a pipe will cause
-    the reader to call its [~flush] callback. *)
-
-val writer :
-  ready:write ->
-  write:(buffer -> int -> int -> bool -> bool -> write) ->
-  flush:write ->
-  ping:(buffer -> int -> int -> write) ->
-  pong:(buffer -> int -> int -> write) ->
-  close:(int -> unit) ->
-    writer
-
-val no_reader : reader
-
-val no_writer : writer
-
-val stream : reader -> writer -> stream
-(* TODO Consider tupling the arguments, as that will make it easier to pass the
-   result of Stream.pipe. *)
-
-val close : stream -> int -> unit
-(** Closes the given stream. Causes a pending reader or writer to call its
-    [~close] callback. *)
-
-val read : stream -> read
-(** Awaits the next stream event. See {!Stream.type-read}. *)
-
-val read_convenience : stream -> string option promise
-(** A wrapper around {!Stream.read} that converts [~data] with content [s] into
-    [Some s], and [~close] into [None], and uses them to resolve a promise.
-    [~flush] is ignored. *)
-
-val read_until_close : stream -> string promise
-(** Reads a stream completely until [~close], and accumulates the data into a
-    string. *)
-
-val ready : stream -> write
-
-val write : stream -> buffer -> int -> int -> bool -> bool -> write
-(** A writing function that sends a data buffer on the given stream. No more
-    writing functions should be called on the stream until this function calls
-    [~ok]. The [bool] arguments are whether the message is binary and whether
-    the [FIN] flag should be set. They are ignored by non-WebSocket streams.
-
-    Note: [FIN] is provided as part of the write call, rather than being a
-    separate stream event (like [flush]), because the WebSocket writer needs to
-    immediately know when the last chunk of the last frame in a message is
-    provided, to transmit the [FIN] bit. If [FIN] were to be provided as a
-    separate event, the WebSocket writer would have to buffer each one chunk, in
-    case the next stream event was [FIN], in order to be able to decide whether
-    to set the [FIN] bit or not. This is awkward and inefficient, as it
-    introduces an unnecessary delay into the writer, as if the next event is not
-    [FIN], the next data chunk might take an arbitrary amount of time to be
-    generated by the writing user code. *)
-
-val flush : stream -> write
-(** A writing function that asks for the given stream to be flushed. The meaning
-    of flushing depends on the implementation of the stream. No more writing
-    functions should be called on the stream until this function calls [~ok]. *)
-
-val ping : stream -> buffer -> int -> int -> write
-(** A writing function that sends a ping event on the given stream. This is only
-    meaningful for WebSockets. *)
-
-val pong : stream -> buffer -> int -> int -> write
-(** A writing function that sends a pong event on the given stream. This is only
-    meaningful for WebSockets. *)
diff --git a/src/sql/session.ml b/src/sql/session.ml
index 8a37895d..41791ff8 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 module Cookie = Dream__middleware.Cookie
 module Session = Dream__middleware.Session
 
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index 4e97dbdf..c1ec2d80 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
diff --git a/src/unix/static.ml b/src/unix/static.ml
index 744ed55b..5c09e463 100644
--- a/src/unix/static.ml
+++ b/src/unix/static.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Dream = Dream_pure
 
 
 
@@ -28,8 +28,17 @@ let from_filesystem local_root path _ =
     (fun () ->
       Lwt_io.(with_file ~mode:Input file) (fun channel ->
         let%lwt content = Lwt_io.read channel in
-        Dream.respond ~headers:(mime_lookup path) content))
-    (fun _exn -> Dream.empty `Not_Found)
+        (* TODO Can use some pre-allocated streams or helpers here and below. *)
+        let client_stream = Dream.Stream.(stream (string content) no_writer)
+        and server_stream = Dream.Stream.(stream no_reader no_writer) in
+        Dream.response ~headers:(mime_lookup path) client_stream server_stream
+        |> Lwt.return))
+    (fun _exn ->
+      (* TODO Improve the two-stream code using some helper. *)
+      let client_stream = Dream.Stream.(stream empty no_writer)
+      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      Dream.response ~status:`Not_Found client_stream server_stream
+      |> Lwt.return)
 
 (* TODO Add ETag handling. *)
 (* TODO Add Content-Length handling? *)
@@ -67,11 +76,21 @@ let validate_path request =
 let static ?(loader = from_filesystem) local_root = fun request ->
 
   if not @@ Dream.methods_equal (Dream.method_ request) `GET then
-    Dream.empty `Not_Found
+    (* TODO Simplify this code and reduce allocations. *)
+    let client_stream = Dream.Stream.(stream empty no_writer)
+    and server_stream = Dream.Stream.(stream no_reader no_writer) in
+    Dream.response ~status:`Not_Found client_stream server_stream
+    |> Lwt.return
 
   else
     match validate_path request with
-    | None -> Dream.empty `Not_Found
+    | None ->
+      (* TODO Improve with helpers. *)
+      let client_stream = Dream.Stream.(stream empty no_writer)
+      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      Dream.response ~status:`Not_Found client_stream server_stream
+      |> Lwt.return
+
     | Some path ->
 
       let%lwt response = loader local_root path request in

From e106e6ec37e3859261f55acf845dd830c8a18bba Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Dec 2021 14:54:16 +0300
Subject: [PATCH 069/312] Fix .gitignore and commit dream-pure.opam

---
 .gitignore      |  3 ++-
 dream-pure.opam | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 dream-pure.opam

diff --git a/.gitignore b/.gitignore
index 9969b6bd..575d62a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,7 +15,8 @@ _esy/
 esy.lock
 
 # Release script
-dream-*
+dream-*.gz
+dream-*/
 
 # Bisect_ppx
 _coverage/
diff --git a/dream-pure.opam b/dream-pure.opam
new file mode 100644
index 00000000..13382927
--- /dev/null
+++ b/dream-pure.opam
@@ -0,0 +1,34 @@
+opam-version: "2.0"
+
+synopsis: "Internal: shared HTTP types for Dream (server) and Hyper (client)"
+
+license: "MIT"
+homepage: "https://github.com/aantron/dream"
+doc: "https://aantron.github.io/dream"
+bug-reports: "https://github.com/aantron/dream/issues"
+dev-repo: "git+https://github.com/aantron/dream.git"
+
+author: "Anton Bachin <antonbachin@yahoo.com>"
+maintainer: "Anton Bachin <antonbachin@yahoo.com>"
+
+depends: [
+  "base64" {>= "3.1.0"}  # Base64.encode_string.
+  "bigstringaf" {>= "0.5.0"}  # Bigstringaf.to_string.
+  "dune" {>= "2.7.0"}  # --instrument-with.
+  "hmap"
+  "lwt"
+  "multipart_form" {>= "0.3.0"}
+  "ocaml" {>= "4.08.0"}
+  "ptime" {>= "0.8.1"}  # Ptime.weekday.
+  "uri" {>= "4.2.0"}
+
+  # Testing, development.
+  "alcotest" {with-test}
+  "bisect_ppx" {with-test & >= "2.5.0"}  # --instrument-with.
+  "ppx_expect" {with-test}
+  "ppx_yojson_conv" {with-test}
+]
+
+build: [
+  ["dune" "build" "-p" name "-j" jobs]
+]

From bb2924de0bb9d3f0aa3a679f401603e651099d8e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Dec 2021 17:45:20 +0300
Subject: [PATCH 070/312] Assign request ids lazily and implicitly

---
 src/dream.ml                 |  2 -
 src/dream.mli                |  4 --
 src/http/http.ml             |  5 +-
 src/middleware/log.ml        | 69 ++++++++++++++++++++++++--
 src/middleware/request_id.ml | 94 ------------------------------------
 5 files changed, 66 insertions(+), 108 deletions(-)
 delete mode 100644 src/middleware/request_id.ml

diff --git a/src/dream.ml b/src/dream.ml
index c0eaecd3..9f8d0561 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -52,7 +52,6 @@ include Dream__http.Http
 
 include Dream__middleware.Lowercase_headers
 include Dream__middleware.Catch
-include Dream__middleware.Request_id
 include Dream__middleware.Site_prefix
 
 let error_template =
@@ -71,7 +70,6 @@ let test ?(prefix = "") handler request =
   ignore prefix;
   let app =
     content_length
-    @@ assign_request_id
     @@ chop_site_prefix
     @@ handler
   in
diff --git a/src/dream.mli b/src/dream.mli
index 103e337c..424caf49 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2087,7 +2087,6 @@ val serve :
       @@ Dream.lowercase_headers
       @@ Dream.content_length
       @@ Dream.catch_errors
-      @@ Dream.assign_request_id
       @@ Dream.chop_site_prefix
       @@ my_app
     ]}
@@ -2115,9 +2114,6 @@ val catch_errors : middleware
 (** Forwards exceptions, rejections, and [4xx], [5xx] responses from the
     application to the error handler. See {!section-errors}. *)
 
-val assign_request_id : middleware
-(** Assigns an id to each request. *)
-
 val chop_site_prefix : middleware
 (** Removes {!Dream.run} [~prefix] from the path in each request, and adds it to
     the request prefix. Responds with [502 Bad Gateway] if the path does not
diff --git a/src/http/http.ml b/src/http/http.ml
index 97cbae38..221493b4 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -403,8 +403,8 @@ let wrap_handler
              request_id field in requests. *)
           let user's_websocket_handler websocket =
             Lwt.with_value
-              Dream__middleware.Request_id.lwt_key
-              (Dream__middleware.Request_id.get_option
+              Dream__middleware.Log.lwt_key
+              (Dream__middleware.Log.get_request_id
                 ~request:(Dream.last request) ())
               (fun () -> user's_websocket_handler websocket)
           in
@@ -651,7 +651,6 @@ let built_in_middleware =
     Dream__middleware.Lowercase_headers.lowercase_headers;
     Dream__middleware.Content_length.content_length;
     Dream__middleware.Catch.catch_errors;
-    Dream__middleware.Request_id.assign_request_id;
     Dream__middleware.Site_prefix.chop_site_prefix;
   ]
 
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index d32d8081..a7d69a89 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -31,11 +31,60 @@ module Dream = Dream_pure
 
 
 
+(* The logging middleware assigns request ids to requests, and tries to show
+   them in the logs. The scheme works as follows:
+
+   - Request ids are strings stored in request-local variables.
+   - The automatically assigned request ids are taken from a simple global
+     sequence.
+   - The user can override the automatic request id by assigning a request id
+     in a middleware that runs before the logger. User-provided request ids can
+     be per-thread, can come from a proxy header, etc.
+   - The logger makes a best effort to forward the request id to all logging
+     statements that are being formatted. If the ~request argument is provided
+     during a logging call, that request's id is shown. To handle all other
+     cases, the logger puts the request's id into an Lwt sequence-associated
+     storage key, and the log message formatter tries to get it from there. *)
+(* TODO Necessary helpers for the user setting the request id are not yet
+   exposed in the API, pending some other refactoring (request mutability). *)
+
+let request_id_label = "dream.request_id"
+
+(* Logs library tag uesd to pass an id from a request provided through
+   ~request. *)
 let logs_lib_tag : string Logs.Tag.def =
   Logs.Tag.def
-    "dream.request_id"
+    request_id_label
     Format.pp_print_string
 
+(* Lwt sequence-associated storage key used to pass request ids for use when
+   ~request is not provided. *)
+let lwt_key : string Lwt.key =
+  Lwt.new_key ()
+
+(* The actual request id "field" associated with each request by the logger. If
+   this field is missing, the logger assigns the request a fresh id. *)
+let id =
+  Dream.new_local
+    ~name:request_id_label
+    ~show_value:(fun id -> id)
+    ()
+
+(* Makes a best-effort attempt to retrieve the request id. *)
+let get_request_id ?request () =
+  let request_id =
+    match request with
+    | None -> None
+    | Some request -> Dream.local id request
+  in
+  match request_id with
+  | Some _ -> request_id
+  | None -> Lwt.get lwt_key
+
+(* The current state of the request id sequence. *)
+let last_id =
+  ref 0
+
 
 
 (* TODO Nice logging for multiline strings? *)
@@ -152,8 +201,7 @@ let reporter ~now () =
       let request_id =
         match request_id_from_tags with
         | Some _ -> request_id_from_tags
-        | None ->
-          Request_id.get_option ()
+        | None -> get_request_id ()
       in
 
       let request_id, request_style =
@@ -262,7 +310,7 @@ let sub_log ?level:level_ name =
           match request with
           | None -> Logs.Tag.empty
           | Some request ->
-            match Request_id.get_option ~request () with
+            match get_request_id ~request () with
             | None -> Logs.Tag.empty
             | Some request_id ->
               Logs.Tag.add logs_lib_tag request_id Logs.Tag.empty
@@ -409,6 +457,16 @@ struct
       set_printexc := false
     end;
 
+    (* Get the requwst's id or assign a new one. *)
+    let request, id =
+      match Dream.local id request with
+      | Some id -> request, id
+      | None ->
+        last_id := !last_id + 1;
+        let new_id = string_of_int !last_id in
+        Dream.with_local id new_id request, new_id
+    in
+
     (* Identify the request in the log. *)
     let user_agent =
       Dream.headers "User-Agent" request
@@ -425,7 +483,8 @@ struct
     (* Call the rest of the app. *)
     Lwt.try_bind
       (fun () ->
-        next_handler request)
+        Lwt.with_value lwt_key (Some id) (fun () ->
+          next_handler request))
       (fun response ->
         (* Log the elapsed time. If the response is a redirection, log the
            target. *)
diff --git a/src/middleware/request_id.ml b/src/middleware/request_id.ml
deleted file mode 100644
index 3e8056f0..00000000
--- a/src/middleware/request_id.ml
+++ /dev/null
@@ -1,94 +0,0 @@
-(* This file is part of Dream, released under the MIT license. See LICENSE.md
-   for details, or visit https://github.com/aantron/dream.
-
-   Copyright 2021 Anton Bachin *)
-
-
-
-(* TODO The other major built-in middleware, prefix, is actually just going to
-   be built-in code. So it's probably best to look into building in request_id,
-   and getting rid of the concept of built-in middleware. *)
-
-module Dream = Dream_pure
-
-
-
-let name =
-  "dream.request_id"
-
-let last_id =
-  Dream.new_global
-    (fun () -> ref 0)
-    ~name:"dream.request_id.last_id"
-    ~show_value:(fun id -> string_of_int !id)
-
-let id =
-  Dream.new_local
-    ()
-    ~name
-    ~show_value:(fun id -> id)
-
-(* TODO Expose this in a more organized fashion? It is used in several
-   places. *)
-let lwt_key =
-  Lwt.new_key ()
-
-
-
-(* TODO Restore the prefix, make the id random, or something else. *)
-(* TODO Now that the request id is built in, there is no good way for the user
-   to pass in a prefix... except perhaps through the app. However, this is
-   probably worth it, because adding request_id to every single middleware
-   stack is extremely annoying, given that you always want it and it's so cheap
-   that there is no reason not to use it. It's probably very rare that someone
-   needs a prefix. *)
-let assign_request_id next_handler request =
-
-  (* Get the last id for this request's app. *)
-  let last_id_ref : int ref =
-    Dream.global last_id request in
-
-  incr last_id_ref;
-
-  let new_id =
-    string_of_int !last_id_ref in
-
-  (* Store the new id in the request and in the Lwt promise values map for
-     best-effort delivery to all code that might want the id. Continue into the
-     rest of the app. *)
-  let request =
-    Dream.with_local id new_id request in
-
-  Lwt.with_value
-    lwt_key
-    (Some new_id)
-    (fun () ->
-      next_handler request)
-
-
-
-let get_option ?request () =
-
-  (* First, try to get the id from the request, if one was provided. *)
-  let request_id =
-    match request with
-    | None -> None
-    | Some request ->
-      Dream.local id request
-  in
-
-  (* If no id was found from the maybe-request, look in the promise-chain-local
-     storage. *)
-  match request_id with
-  | Some _ -> request_id
-  | None ->
-    Lwt.get lwt_key
-
-
-
-(* TODO LATER Maybe it's better to build the request id straight into the
-   runtime? There's no real cost to it... is there? And when wouldn't the user
-   want a request id? *)
-(* TODO LATER List arguments for built-in middlewares: 0 or so cost, highly
-   beneficial, in some cases (prefix) actually necessary for correct operation
-   of a website. *)

From d81b1986b67ccf8024deeb3d1c223452116fdb4d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Dec 2021 17:51:48 +0300
Subject: [PATCH 071/312] Delete per-server "global" variables as a concept

---
 example/4-counter/README.md |  8 --------
 src/dream.mli               | 15 +--------------
 src/http/error_handler.ml   | 20 ++++++++------------
 src/pure/dream_pure.mli     |  8 --------
 src/pure/inmost.ml          | 24 ------------------------
 5 files changed, 9 insertions(+), 66 deletions(-)

diff --git a/example/4-counter/README.md b/example/4-counter/README.md
index f65f3f3d..f976ed66 100644
--- a/example/4-counter/README.md
+++ b/example/4-counter/README.md
@@ -42,14 +42,6 @@ promise with [Lwt](https://github.com/ocsigen/lwt#readme), the promise library
 used by Dream. The next example, [**`5-promise`**](../5-promise#files), does
 exactly that!
 
-<!-- TODO
-<br>
-
-Advanced example [**`w-globals`**](../w-globals/#files) shows how to replace
-global state like `count` by state scoped to the application. This is useful if
-you are writing middleware to publish in a library. It's fine to use a global
-`ref` in private code!
--->
 <br>
 
 **Next steps:**
diff --git a/src/dream.mli b/src/dream.mli
index 424caf49..a23c5302 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2290,14 +2290,11 @@ val decrypt :
 
 (** {1 Variables}
 
-    Dream provides two variable scopes for use by middlewares. *)
+    Dream supports user-defined per-message variables for use by middlewares. *)
 
 type 'a local
 (** Per-message variable. *)
 
-type 'a global
-(** Per-server variable. *)
-
 val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a local
 (** Declares a variable of type ['a] in all messages. The variable is initially
     unset in each message. The optional [~name] and [~show_value] are used by
@@ -2309,16 +2306,6 @@ val local : 'a local -> 'b message -> 'a option
 val with_local : 'a local -> 'a -> 'b message -> 'b message
 (** Sets the per-message variable to the value. *)
 
-val new_global :
-  ?name:string -> ?show_value:('a -> string) -> (unit -> 'a) -> 'a global
-(** Declares a variable of type ['a] in all servers. The first time the variable
-    is accessed, the given initializer function is called to get its value.
-    Global variables cannot be changed. So, they are typically refs or other
-    mutable data structures, such as hash tables. *)
-
-val global : 'a global -> request -> 'a
-(** Retrieves the value of the per-server variable. *)
-
 
 
 (** {1 Testing} *)
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index d6a4cd0e..04178541 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -94,18 +94,14 @@ let dump (error : Dream.error) =
     Dream.all_headers last
     |> List.iter (fun (name, value) -> p "\n%s: %s" name value);
 
-    let show_variables kind =
-      kind (fun name value first ->
-        if first then
-          p "\n";
-        p "\n%s: %s" name value;
-        false)
-        true
-        request
-      |> ignore
-    in
-    show_variables Dream.fold_locals;
-    show_variables Dream.fold_globals
+    Dream.fold_locals (fun name value first ->
+      if first then
+        p "\n";
+      p "\n%s: %s" name value;
+      false)
+      true
+      request
+    |> ignore
   end;
 
   Buffer.contents buffer
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 95ec6e1e..ed8fbcb0 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -453,14 +453,6 @@ val local : 'a local -> 'b message -> 'a option
 val with_local : 'a local -> 'a -> 'b message -> 'b message
 val fold_locals : (string -> string -> 'a -> 'a) -> 'a -> 'b message -> 'a
 
-type 'a global
-val new_global :
-  ?name:string -> ?show_value:('a -> string) -> (unit -> 'a) -> 'a global
-val global : 'a global -> request -> 'a
-(* TODO Get rid of globals completely as a concept, once the site_prefix
-   middleware is clarified. *)
-val fold_globals : (string -> string -> 'a -> 'a) -> 'a -> request -> 'a
-
 
 
 (* TODO Delete once requests are mutable. *)
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 4e712a7c..57e5dc07 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -70,7 +70,6 @@ and server = {
 }
 
 and app = {
-  globals : Scope.t ref;
   mutable app_debug : bool;
   mutable https : bool;
   mutable secrets : string list;
@@ -142,7 +141,6 @@ let site_prefix request =
   request.specific.app.site_prefix
 
 let new_app error_handler site_prefix = {
-  globals = ref Scope.empty;
   app_debug = false;
   https = false;
   secrets = [];
@@ -427,28 +425,6 @@ let with_local key value message =
 let fold_locals f initial message =
   fold_scope f initial message.locals
 
-type 'a global = {
-  key : 'a Scope.key;
-  initializer_ : unit -> 'a;
-}
-
-let new_global ?name ?show_value initializer_ = {
-  key = Scope.Key.create (name, show_value);
-  initializer_;
-}
-
-let global {key; initializer_} request =
-  match Scope.find key !(request.specific.app.globals) with
-  | Some value -> value
-  | None ->
-    let value = initializer_ () in
-    request.specific.app.globals :=
-      Scope.add key value !(request.specific.app.globals);
-    value
-
-let fold_globals f initial request =
-  fold_scope f initial !(request.specific.app.globals)
-
 let app request =
   request.specific.app
 

From 2529b9adda670746ab766dcb4ea5664816ef87a0 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Dec 2021 18:59:42 +0300
Subject: [PATCH 072/312] Set secrets using a middleware

---
 src/cipher/cipher.ml    | 40 ++++++++++++++++++++++++++++++++++++++--
 src/dream.mli           | 39 +++++++++++++++++++++++----------------
 src/http/http.ml        | 19 +++----------------
 src/pure/dream_pure.mli |  6 ------
 src/pure/inmost.ml      | 15 ---------------
 5 files changed, 64 insertions(+), 55 deletions(-)

diff --git a/src/cipher/cipher.ml b/src/cipher/cipher.ml
index 85a5b258..64cafcf5 100644
--- a/src/cipher/cipher.ml
+++ b/src/cipher/cipher.ml
@@ -11,6 +11,12 @@
 (* TODO LATER Switch to AEAD_AES_256_GCM_SIV. See
    https://github.com/mirage/mirage-crypto/issues/111. *)
 
+
+
+module Dream = Dream_pure
+
+
+
 module type Cipher =
 sig
   val prefix : char
@@ -112,16 +118,46 @@ struct
         | Some plaintext -> Some (Cstruct.to_string plaintext)
 end
 
+let secrets =
+  Dream.new_local
+    ~name:"dream.secret"
+    ~show_value:(fun _secrets -> "[redacted]")
+    ()
+
+(* TODO Add warnings about secret length and such. *)
+(* TODO Also add warnings about implicit secret generation. However, these
+   warnings might be pretty spammy. *)
+(* TODO Update examples and docs. *)
+let with_secret ?(old_secrets = []) secret =
+  let value = secret::old_secrets in
+  fun next_handler request ->
+    request
+    |> Dream.with_local secrets value
+    |> next_handler
+
+let fallback_secrets =
+  lazy [Random.random 32]
+
+let encryption_secret request =
+  match Dream.local secrets request with
+  | Some secrets -> List.hd secrets
+  | None -> List.hd (Lazy.force fallback_secrets)
+
+let decryption_secrets request =
+  match Dream.local secrets request with
+  | Some secrets -> secrets
+  | None -> Lazy.force fallback_secrets
+
 let encrypt ?associated_data request plaintext =
   encrypt
     (module AEAD_AES_256_GCM)
     ?associated_data
-    (Dream_pure.encryption_secret request)
+    (encryption_secret request)
     plaintext
 
 let decrypt ?associated_data request ciphertext =
   decrypt
     (module AEAD_AES_256_GCM)
     ?associated_data
-    (Dream_pure.decryption_secrets request)
+    (decryption_secrets request)
     ciphertext
diff --git a/src/dream.mli b/src/dream.mli
index a23c5302..8985080a 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1973,8 +1973,6 @@ val run :
   ?stop:unit promise ->
   ?debug:bool ->
   ?error_handler:error_handler ->
-  ?secret:string ->
-  ?old_secrets:string list ->
   ?prefix:string ->
   ?https:bool ->
   ?certificate_file:string ->
@@ -2006,18 +2004,6 @@ val run :
       low-level errors. See {!section-errors} and example
       {{:https://github.com/aantron/dream/tree/master/example/9-error#files}
       [9-error]} \[{{:http://dream.as/9-error} playground}\].
-    - [~secret] is a key to be used for cryptographic operations, such as
-      signing CSRF tokens. By default, a random secret is generated on each call
-      to {!Dream.run}. For production, generate a 256-bit key with
-      {[
-        Dream.to_base64url (Dream.random 32)
-      ]}
-      and load it from file. A medium-sized Web app serving 1000 fresh encrypted
-      cookies per second should rotate keys about once a year. See argument
-      [~old_secrets] below for key rotation. See {!Dream.encrypt} for cipher
-      information.
-    - [~old_secrets] is a list of previous secrets that can still be used for
-      decryption, but not for encryption. This is intended for key rotation.
     - [~prefix] is a site prefix for applications that are not running at the
       root ([/]) of their domain. The default is ["/"], for no prefix.
     - [~https:true] enables HTTPS. You should also specify [~certificate_file]
@@ -2050,8 +2036,6 @@ val serve :
   ?stop:unit promise ->
   ?debug:bool ->
   ?error_handler:error_handler ->
-  ?secret:string ->
-  ?old_secrets:string list ->
   ?prefix:string ->
   ?https:bool ->
   ?certificate_file:string ->
@@ -2239,6 +2223,29 @@ val application_json : string
 
 (** {1 Cryptography} *)
 
+val with_secret : ?old_secrets:string list -> string -> middleware
+(** Sets a key to be used for cryptographic operations, such as signing CSRF
+    tokens and encrypting cookies.
+
+    If this middleware is not used, a random secret is generated the first time
+    a secret is needed. The random secret persists for the lifetime of the
+    process. This is useful for quick testing and prototyping, but it means that
+    restarts of the server will not be able to verify tokens or decrypt cookies
+    generated by earlier runs, and multiple servers in a load-balancing
+    arrangement will not accept each others' tokens and cookies.
+
+    For production, generate a 256-bit key with
+
+    {[
+      Dream.to_base64url (Dream.random 32)
+    ]}
+
+    [~old_secrets] is a list of previous secrets that will not be used for
+    encryption or signing, but will still be tried for decryption and
+    verification. This is intended for key rotation. A medium-sized Web app
+    serving 1000 fresh encrypted cookies per second should rotate keys about
+    once a year. *)
+
 val random : int -> string
 (** Generates the requested number of bytes using a
     {{:https://github.com/mirage/mirage-crypto} cryptographically secure random
diff --git a/src/http/http.ml b/src/http/http.ml
index 221493b4..364f6941 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -751,8 +751,6 @@ let serve_with_maybe_https
     ~stop
     ?debug
     ~error_handler
-    ?(secret = Dream__cipher.Random.random 32)
-    ?(old_secrets = [])
     ~prefix
     ~https
     ?certificate_file ?key_file
@@ -775,16 +773,13 @@ let serve_with_maybe_https
 
     (* This check will at least catch secrets like "foo" when used on a public
        interface. *)
-    if not (is_localhost interface) then
+    (* if not (is_localhost interface) then
       if String.length secret < 32 then begin
         log.warning (fun log -> log "Using a short key on a public interface");
         log.warning (fun log ->
           log "Consider using Dream.to_base64url (Dream.random 32)");
-    end;
-
-    (* TODO The interface needs to allow not messing with the secret if an app
-       is passed. *)
-    Dream.set_secrets (secret::old_secrets) app;
+    end; *)
+    (* TODO Make sure there is a similar check in cipher.ml now.Hpack *)
 
     match https with
     | `No ->
@@ -920,8 +915,6 @@ let serve
     ?(stop = never)
     ?debug
     ?(error_handler = Error_handler.default)
-    ?secret
-    ?old_secrets
     ?(prefix = "")
     ?(https = false)
     ?certificate_file
@@ -936,8 +929,6 @@ let serve
     ~stop
     ?debug
     ~error_handler
-    ?secret
-    ?old_secrets
     ~prefix
     ~https:(if https then `OpenSSL else `No)
     ?certificate_file
@@ -955,8 +946,6 @@ let run
     ?(stop = never)
     ?debug
     ?(error_handler = Error_handler.default)
-    ?secret
-    ?old_secrets
     ?(prefix = "")
     ?(https = false)
     ?certificate_file
@@ -1036,8 +1025,6 @@ let run
         ~stop
         ?debug
         ~error_handler
-        ?secret
-        ?old_secrets
         ~prefix
         ~https:(if https then `OpenSSL else `No)
         ?certificate_file ?key_file
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index ed8fbcb0..4c919c4e 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -140,11 +140,6 @@ val prefix : request -> string
 val internal_prefix : request -> string list
 val path : request -> string list
 val version : request -> int * int
-val encryption_secret : request -> string
-val decryption_secrets : request -> string list
-(* TODO Get the encryption secrets out of here and into the server only.
-   Also try to move the whole "app" mechanism to the server only. However, how
-   will that interact with in-process testing? *)
 val site_prefix : request -> string list
 (* TODO This will be moved out of dream-pure and become just a server-side
    middleware.. *)
@@ -404,7 +399,6 @@ val app : request -> app
 val debug : app -> bool
 val set_debug : bool -> app -> unit
 val app_error_handler : app -> (error -> response promise)
-val set_secrets : string list -> app -> unit
 val set_https : bool -> app -> unit
 val request_from_http :
   app:app ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 57e5dc07..9b7bcb7b 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -72,7 +72,6 @@ and server = {
 and app = {
   mutable app_debug : bool;
   mutable https : bool;
-  mutable secrets : string list;
   error_handler : error -> response Lwt.t;
   site_prefix : string list;
 }
@@ -127,13 +126,6 @@ let set_debug value app =
 let app_error_handler app =
   app.error_handler
 
-(* TODO Delete; now using key. *)
-let secret app =
-  List.hd app.secrets
-
-let set_secrets secrets app =
-  app.secrets <- secrets
-
 let set_https https app =
   app.https <- https
 
@@ -143,7 +135,6 @@ let site_prefix request =
 let new_app error_handler site_prefix = {
   app_debug = false;
   https = false;
-  secrets = [];
   error_handler;
   site_prefix;
 }
@@ -595,12 +586,6 @@ let rec pipeline middlewares handler =
 let sort_headers headers =
   List.stable_sort (fun (name, _) (name', _) -> compare name name') headers
 
-let encryption_secret request =
-  List.hd request.specific.app.secrets
-
-let decryption_secrets request =
-  request.specific.app.secrets
-
 (* TODO Remove to server-side code. *)
 let multipart_state request =
   request.specific.upload

From 3da5e2354d28c728ddbcc222e1729664decb2cbf Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Dec 2021 19:11:54 +0300
Subject: [PATCH 073/312] Move site prefix handling to a middleware

---
 src/dream.ml                  |  3 +--
 src/dream.mli                 | 18 +++++++++---------
 src/http/http.ml              | 14 +-------------
 src/middleware/site_prefix.ml |  9 +++++++--
 src/pure/dream_pure.mli       |  5 +----
 src/pure/inmost.ml            |  9 ++-------
 6 files changed, 21 insertions(+), 37 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index 9f8d0561..9395b927 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -67,10 +67,9 @@ include Dream_pure.Formats
 (* TODO Restore the ability to test with a prefix and re-enable the
    corresponding tests. *)
 let test ?(prefix = "") handler request =
-  ignore prefix;
   let app =
     content_length
-    @@ chop_site_prefix
+    @@ with_site_prefix prefix
     @@ handler
   in
 
diff --git a/src/dream.mli b/src/dream.mli
index 8985080a..63bc6c36 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1973,7 +1973,6 @@ val run :
   ?stop:unit promise ->
   ?debug:bool ->
   ?error_handler:error_handler ->
-  ?prefix:string ->
   ?https:bool ->
   ?certificate_file:string ->
   ?key_file:string ->
@@ -2004,8 +2003,6 @@ val run :
       low-level errors. See {!section-errors} and example
       {{:https://github.com/aantron/dream/tree/master/example/9-error#files}
       [9-error]} \[{{:http://dream.as/9-error} playground}\].
-    - [~prefix] is a site prefix for applications that are not running at the
-      root ([/]) of their domain. The default is ["/"], for no prefix.
     - [~https:true] enables HTTPS. You should also specify [~certificate_file]
       and [~key_file]. However, for development, Dream includes an insecure
       compiled-in
@@ -2036,7 +2033,6 @@ val serve :
   ?stop:unit promise ->
   ?debug:bool ->
   ?error_handler:error_handler ->
-  ?prefix:string ->
   ?https:bool ->
   ?certificate_file:string ->
   ?key_file:string ->
@@ -2071,7 +2067,6 @@ val serve :
       @@ Dream.lowercase_headers
       @@ Dream.content_length
       @@ Dream.catch_errors
-      @@ Dream.chop_site_prefix
       @@ my_app
     ]}
 
@@ -2098,10 +2093,15 @@ val catch_errors : middleware
 (** Forwards exceptions, rejections, and [4xx], [5xx] responses from the
     application to the error handler. See {!section-errors}. *)
 
-val chop_site_prefix : middleware
-(** Removes {!Dream.run} [~prefix] from the path in each request, and adds it to
-    the request prefix. Responds with [502 Bad Gateway] if the path does not
-    have the expected prefix. *)
+val with_site_prefix : string -> middleware
+(** Removes the given prefix from the path in each request, and adds it to the
+    request prefix. Responds with [502 Bad Gateway] if the path does not have
+    the expected prefix.
+
+    This is for applications that are not running at the root ([/]) of their
+    domain. The default is ["/"], for no prefix. After [with_site_prefix],
+    routing is done relative to the prefix, and the prefix is also necessary for
+    emitting secure cookies. *)
 
 
 
diff --git a/src/http/http.ml b/src/http/http.ml
index 364f6941..0104f0c8 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -651,7 +651,6 @@ let built_in_middleware =
     Dream__middleware.Lowercase_headers.lowercase_headers;
     Dream__middleware.Content_length.content_length;
     Dream__middleware.Catch.catch_errors;
-    Dream__middleware.Site_prefix.chop_site_prefix;
   ]
 
 
@@ -743,7 +742,6 @@ let serve_with_details
 let is_localhost interface =
   interface = "localhost" || interface = "127.0.0.1"
 
-(* TODO Validate the prefix here. *)
 let serve_with_maybe_https
     caller_function_for_error_messages
     ~interface
@@ -751,19 +749,13 @@ let serve_with_maybe_https
     ~stop
     ?debug
     ~error_handler
-    ~prefix
     ~https
     ?certificate_file ?key_file
     ?certificate_string ?key_string
     ~builtins
     user's_dream_handler =
 
-  let prefix =
-    prefix
-    |> Dream_pure.Formats.from_path
-    |> Dream_pure.Formats.drop_trailing_slash
-  in
-  let app = Dream.new_app (Error_handler.app error_handler) prefix in
+  let app = Dream.new_app (Error_handler.app error_handler) in
 
   try%lwt
     begin match debug with
@@ -915,7 +907,6 @@ let serve
     ?(stop = never)
     ?debug
     ?(error_handler = Error_handler.default)
-    ?(prefix = "")
     ?(https = false)
     ?certificate_file
     ?key_file
@@ -929,7 +920,6 @@ let serve
     ~stop
     ?debug
     ~error_handler
-    ~prefix
     ~https:(if https then `OpenSSL else `No)
     ?certificate_file
     ?key_file
@@ -946,7 +936,6 @@ let run
     ?(stop = never)
     ?debug
     ?(error_handler = Error_handler.default)
-    ?(prefix = "")
     ?(https = false)
     ?certificate_file
     ?key_file
@@ -1025,7 +1014,6 @@ let run
         ~stop
         ?debug
         ~error_handler
-        ~prefix
         ~https:(if https then `OpenSSL else `No)
         ?certificate_file ?key_file
         ?certificate_string:None ?key_string:None
diff --git a/src/middleware/site_prefix.ml b/src/middleware/site_prefix.ml
index cbec6545..bc7aab29 100644
--- a/src/middleware/site_prefix.ml
+++ b/src/middleware/site_prefix.ml
@@ -24,8 +24,13 @@ let rec match_site_prefix prefix path =
 
 
 (* TODO The path and prefix representations and accessors need a cleanup. *)
-let chop_site_prefix next_handler request =
-    let prefix = Dream.site_prefix request in
+let with_site_prefix prefix =
+  let prefix =
+    prefix
+    |> Dream_pure.Formats.from_path
+    |> Dream_pure.Formats.drop_trailing_slash
+  in
+  fun next_handler request ->
     match match_site_prefix prefix (Dream.path request) with
     | None ->
       (* TODO Streams. *)
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 4c919c4e..c7495332 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -140,9 +140,6 @@ val prefix : request -> string
 val internal_prefix : request -> string list
 val path : request -> string list
 val version : request -> int * int
-val site_prefix : request -> string list
-(* TODO This will be moved out of dream-pure and become just a server-side
-   middleware.. *)
 val with_client : string -> request -> request
 val with_method_ : [< method_ ] -> request -> request
 val with_prefix : string list -> request -> request
@@ -394,7 +391,7 @@ type error = {
 
 type error_handler = error -> response option promise
 
-val new_app : (error -> response Lwt.t) -> string list -> app
+val new_app : (error -> response Lwt.t) -> app
 val app : request -> app
 val debug : app -> bool
 val set_debug : bool -> app -> unit
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 9b7bcb7b..0bedc672 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -73,7 +73,6 @@ and app = {
   mutable app_debug : bool;
   mutable https : bool;
   error_handler : error -> response Lwt.t;
-  site_prefix : string list;
 }
 
 and error_handler = error -> response option Lwt.t
@@ -129,14 +128,10 @@ let app_error_handler app =
 let set_https https app =
   app.https <- https
 
-let site_prefix request =
-  request.specific.app.site_prefix
-
-let new_app error_handler site_prefix = {
+let new_app error_handler = {
   app_debug = false;
   https = false;
   error_handler;
-  site_prefix;
 }
 
 type 'a promise = 'a Lwt.t
@@ -475,7 +470,7 @@ let request
     specific = {
       (* TODO Is there a better fake error handler? Maybe this function should
          come after the response constructors? *)
-      app = new_app (fun _ -> assert false) [];
+      app = new_app (fun _ -> assert false);
       request_client = client;
       method_;
       target;

From ebeac7c7359b76556b109ffc7c17203f645cc492 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Dec 2021 19:17:05 +0300
Subject: [PATCH 074/312] Reorder dream-pure.mli a bit

Looks like a paste went to the wrong place before.
---
 src/pure/dream_pure.mli | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index c7495332..c4c68186 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -132,6 +132,16 @@ val normalize_status : [< status ] -> status
 
 
 
+val request :
+  ?client:string ->
+  ?method_:[< method_ ] ->
+  ?target:string ->
+  ?version:int * int ->
+  ?headers:(string * string) list ->
+  stream ->
+  stream ->
+    request
+
 val client : request -> string
 val https : request -> bool
 val method_ : request -> method_
@@ -447,15 +457,6 @@ val fold_locals : (string -> string -> 'a -> 'a) -> 'a -> 'b message -> 'a
 
 
 (* TODO Delete once requests are mutable. *)
-val request :
-  ?client:string ->
-  ?method_:[< method_ ] ->
-  ?target:string ->
-  ?version:int * int ->
-  ?headers:(string * string) list ->
-  stream ->
-  stream ->
-    request
 val first : 'a message -> 'a message
 val last : 'a message -> 'a message
 val sort_headers : (string * string) list -> (string * string) list

From 6c726d527176b51dee791b36b612f6ad1a24aa74 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Dec 2021 19:24:03 +0300
Subject: [PATCH 075/312] Move the https field to requests

---
 src/http/http.ml        | 16 ++++++++--------
 src/pure/dream_pure.mli |  2 +-
 src/pure/inmost.ml      | 11 +++++------
 3 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index 0104f0c8..57b06773 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -294,6 +294,7 @@ let websocket_handler user's_websocket_handler socket =
 (* TODO Rename conn like in the body branch. *)
 let wrap_handler
     app
+    https
     (user's_error_handler : Dream.error_handler)
     (user's_dream_handler : Dream.handler) =
 
@@ -338,7 +339,7 @@ let wrap_handler
 
     let request : Dream.request =
       Dream.request_from_http
-        ~app ~client ~method_ ~target ~version ~headers body in
+        ~app ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -445,6 +446,7 @@ let wrap_handler
 (* TODO Factor out what is in common between the http/af and h2 handlers. *)
 let wrap_handler_h2
     app
+    https
     (_user's_error_handler : Dream.error_handler)
     (user's_dream_handler : Dream.handler) =
 
@@ -483,7 +485,7 @@ let wrap_handler_h2
 
     let request : Dream.request =
       Dream.request_from_http
-        ~app ~client ~method_ ~target ~version ~headers body in
+        ~app ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -566,7 +568,7 @@ let no_tls = {
       ~error_handler ->
     Httpaf_lwt_unix.Server.create_connection_handler
       ?config:None
-      ~request_handler:(wrap_handler app error_handler handler)
+      ~request_handler:(wrap_handler app false error_handler handler)
       ~error_handler:(Error_handler.httpaf app error_handler)
   end;
 }
@@ -581,14 +583,14 @@ let openssl = {
     let httpaf_handler =
       Httpaf_lwt_unix.Server.SSL.create_connection_handler
         ?config:None
-      ~request_handler:(wrap_handler app error_handler handler)
+      ~request_handler:(wrap_handler app true error_handler handler)
       ~error_handler:(Error_handler.httpaf app error_handler)
     in
 
     let h2_handler =
       H2_lwt_unix.Server.SSL.create_connection_handler
         ?config:None
-      ~request_handler:(wrap_handler_h2 app error_handler handler)
+      ~request_handler:(wrap_handler_h2 app true error_handler handler)
       ~error_handler:(Error_handler.h2 app error_handler)
     in
 
@@ -640,7 +642,7 @@ let ocaml_tls = {
     Httpaf_lwt_unix.Server.TLS.create_connection_handler_with_default
       ~certfile:certificate_file ~keyfile:key_file
       ?config:None
-      ~request_handler:(wrap_handler app error_handler handler)
+      ~request_handler:(wrap_handler app true error_handler handler)
       ~error_handler:(Error_handler.httpaf app error_handler)
 }
 
@@ -789,8 +791,6 @@ let serve_with_maybe_https
         user's_dream_handler
 
     | `OpenSSL | `OCaml_TLS as tls_library ->
-      Dream.set_https true app;
-
       (* TODO Writing temporary files is extremely questionable for anything
          except the fake localhost certificate. This needs loud warnings. IIRC
          the SSL binding already supports in-memory certificates. Does TLS? In
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index c4c68186..d5866232 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -406,12 +406,12 @@ val app : request -> app
 val debug : app -> bool
 val set_debug : bool -> app -> unit
 val app_error_handler : app -> (error -> response promise)
-val set_https : bool -> app -> unit
 val request_from_http :
   app:app ->
   client:string ->
   method_:method_ ->
   target:string ->
+  https:bool ->
   version:int * int ->
   headers:(string * string) list ->
   stream ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 0bedc672..837fba90 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -59,6 +59,7 @@ and client = {
   prefix : string list;
   path : string list;
   query : (string * string) list;
+  https : bool;
   request_version : int * int;
   upload : multipart_state;
 }
@@ -71,7 +72,6 @@ and server = {
 
 and app = {
   mutable app_debug : bool;
-  mutable https : bool;
   error_handler : error -> response Lwt.t;
 }
 
@@ -125,12 +125,8 @@ let set_debug value app =
 let app_error_handler app =
   app.error_handler
 
-let set_https https app =
-  app.https <- https
-
 let new_app error_handler = {
   app_debug = false;
-  https = false;
   error_handler;
 }
 
@@ -153,7 +149,7 @@ let client request =
   request.specific.request_client
 
 let https request =
-  request.specific.app.https
+  request.specific.https
 
 let method_ request =
   request.specific.method_
@@ -419,6 +415,7 @@ let request_from_http
     ~client
     ~method_
     ~target
+    ~https
     ~version
     ~headers
     body =
@@ -434,6 +431,7 @@ let request_from_http
       prefix = [];
       path = Formats.from_path path;
       query = Formats.from_form_urlencoded query;
+      https;
       request_version = version;
       upload = initial_multipart_state ();
     };
@@ -477,6 +475,7 @@ let request
       prefix = [];
       path = Formats.from_path path;
       query = Formats.from_form_urlencoded query;
+      https = false;
       request_version = version;
       upload = initial_multipart_state ();
     };

From 640a1b218b0c6932088077416455463ffd34f036 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 10:40:56 +0300
Subject: [PATCH 076/312] Replace ~debug flag by separate error handler

---
 src/dream.ml               |  2 ++
 src/dream.mli              | 23 ++++++-----------------
 src/http/error_handler.ml  | 38 +++++++++++++++-----------------------
 src/http/error_handler.mli |  3 ++-
 src/http/http.ml           | 10 ----------
 src/middleware/catch.ml    |  2 --
 src/pure/dream_pure.mli    |  3 ---
 src/pure/inmost.ml         |  9 ---------
 8 files changed, 25 insertions(+), 65 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index 9395b927..914f8c9a 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -54,6 +54,8 @@ include Dream__middleware.Lowercase_headers
 include Dream__middleware.Catch
 include Dream__middleware.Site_prefix
 
+let debug_error_handler =
+  Dream__http.Error_handler.debug_error_handler
 let error_template =
   Dream__http.Error_handler.customize
 
diff --git a/src/dream.mli b/src/dream.mli
index 63bc6c36..f35d6d2c 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1818,7 +1818,6 @@ type error = {
   response : response option;
   client : string option;
   severity : log_level;
-  debug : bool;
   will_send_response : bool;
 }
 (** Detailed errors. Ignore this type if only using {!Dream.error_template}.
@@ -1887,17 +1886,6 @@ type error = {
     [`Server] errors and [`Warning] for client errors.
     }
 
-    {li
-    [debug] is [true] if {!Dream.run} was called with [~debug].
-
-    If so, the default error handler gathers various fields from the current
-    request, formats the error condition, and passes the resulting string to the
-    template as [debug_dump].
-
-    The default template shows this string in its repsonse, instead of returning
-    a response with no body.
-    }
-
     {li
     [will_send_response] is [true] in error contexts where Dream will still send
     a response.
@@ -1921,7 +1909,7 @@ type error_handler = error -> response option promise
     {!Dream.type-error}. *)
 
 val error_template :
-  (error -> string option -> response -> response promise) -> error_handler
+  (error -> string -> response -> response promise) -> error_handler
 (** Builds an {!error_handler} from a template. See example
     {{:https://github.com/aantron/dream/tree/master/example/9-error#files}
     [9-error]} \[{{:http://dream.as/9-error} playground}\].
@@ -1951,8 +1939,7 @@ val error_template :
       the error was likely caused by the client, and [500 Internal Server Error]
       if the error was likely caused by the server.
 
-    If [~debug] was passed to {!Dream.run}, [~debug_dump] will be [Some info],
-    where [info] is a multi-line string containing an error description, stack
+    [~debug_dump] is a multi-line string containing an error description, stack
     trace, request state, and other information.
 
     When an error occurs in a context where a response is not possible, the
@@ -1963,6 +1950,10 @@ val error_template :
     If the template itself raises an exception or rejects, an empty [500
     Internal Server Error] will be sent in contexts that require a response. *)
 
+val debug_error_handler : error_handler
+(** An {!error_handler} for showing extra information about requests and
+    exceptions, for use during development. *)
+
 
 
 (** {1 Servers} *)
@@ -1971,7 +1962,6 @@ val run :
   ?interface:string ->
   ?port:int ->
   ?stop:unit promise ->
-  ?debug:bool ->
   ?error_handler:error_handler ->
   ?https:bool ->
   ?certificate_file:string ->
@@ -2031,7 +2021,6 @@ val serve :
   ?interface:string ->
   ?port:int ->
   ?stop:unit promise ->
-  ?debug:bool ->
   ?error_handler:error_handler ->
   ?https:bool ->
   ?certificate_file:string ->
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 04178541..acfbb8c5 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -157,11 +157,7 @@ let customize template (error : Dream.error) =
     Lwt.return_none
 
   else
-    let debug_dump =
-      match error.debug with
-      | false -> None
-      | true -> Some (dump error)
-    in
+    let debug_dump = dump error in
 
     let response =
       match error.condition with
@@ -187,24 +183,25 @@ let customize template (error : Dream.error) =
 
 
 
-let default_template _error debug_dump response =
-  match debug_dump with
-  | None -> Lwt.return response
-  | Some debug_dump ->
-    let status = Dream.status response in
-    let code = Dream.status_to_int status
-    and reason = Dream.status_to_string status in
-    response
-    |> Dream.with_header "Content-Type" Dream_pure.Formats.text_html
-    |> Dream.with_body
-      (Dream__middleware.Error_template.render ~debug_dump ~code ~reason)
-    |> Lwt.return
-
+let default_template _error _debug_dump response =
+  Lwt.return response
 
+let debug_template _error debug_dump response =
+  let status = Dream.status response in
+  let code = Dream.status_to_int status
+  and reason = Dream.status_to_string status in
+  response
+  |> Dream.with_header "Content-Type" Dream_pure.Formats.text_html
+  |> Dream.with_body
+    (Dream__middleware.Error_template.render ~debug_dump ~code ~reason)
+  |> Lwt.return
 
 let default =
   customize default_template
 
+let debug_error_handler =
+  customize debug_template
+
 
 
 (* Error reporters (called in various places by the framework). *)
@@ -371,7 +368,6 @@ let httpaf
     response = None;
     client = Some (Adapt.address_to_string client_address);
     severity;
-    debug = Dream.debug app;
     will_send_response = true;
   } in
 
@@ -430,7 +426,6 @@ let h2
     response = None;
     client = Some (Adapt.address_to_string client_address);
     severity;
-    debug = Dream.debug app;
     will_send_response = true;
   } in
 
@@ -472,7 +467,6 @@ let tls
     response = None;
     client = Some (Adapt.address_to_string client_address);
     severity = `Warning;
-    debug = Dream.debug app;
     will_send_response = false;
   } in
 
@@ -504,7 +498,6 @@ let websocket
     response = Some response;
     client = Some (Dream.client request);
     severity = `Warning;   (* Not sure what these errors are, yet. *)
-    debug = Dream.debug (Dream.app request);
     will_send_response = false;
   } in
 
@@ -527,7 +520,6 @@ let websocket_handshake
     response = Some response;
     client = Some (Dream.client request);
     severity = `Warning;
-    debug = Dream.debug (Dream.app request);
     will_send_response = true;
   } in
 
diff --git a/src/http/error_handler.mli b/src/http/error_handler.mli
index cea4917e..cd476551 100644
--- a/src/http/error_handler.mli
+++ b/src/http/error_handler.mli
@@ -13,8 +13,9 @@ module Dream = Dream_pure
    templates and/or do logging. *)
 
 val default : Dream.error_handler
+val debug_error_handler : Dream.error_handler
 val customize :
-  (Dream.error -> string option -> Dream.response -> Dream.response Lwt.t) ->
+  (Dream.error -> string -> Dream.response -> Dream.response Lwt.t) ->
     Dream.error_handler
 
 
diff --git a/src/http/http.ml b/src/http/http.ml
index 57b06773..9b3641ca 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -749,7 +749,6 @@ let serve_with_maybe_https
     ~interface
     ~port
     ~stop
-    ?debug
     ~error_handler
     ~https
     ?certificate_file ?key_file
@@ -760,11 +759,6 @@ let serve_with_maybe_https
   let app = Dream.new_app (Error_handler.app error_handler) in
 
   try%lwt
-    begin match debug with
-    | Some debug -> Dream.set_debug debug app
-    | None -> ()
-    end;
-
     (* This check will at least catch secrets like "foo" when used on a public
        interface. *)
     (* if not (is_localhost interface) then
@@ -905,7 +899,6 @@ let serve
     ?(interface = default_interface)
     ?(port = default_port)
     ?(stop = never)
-    ?debug
     ?(error_handler = Error_handler.default)
     ?(https = false)
     ?certificate_file
@@ -918,7 +911,6 @@ let serve
     ~interface
     ~port
     ~stop
-    ?debug
     ~error_handler
     ~https:(if https then `OpenSSL else `No)
     ?certificate_file
@@ -934,7 +926,6 @@ let run
     ?(interface = default_interface)
     ?(port = default_port)
     ?(stop = never)
-    ?debug
     ?(error_handler = Error_handler.default)
     ?(https = false)
     ?certificate_file
@@ -1012,7 +1003,6 @@ let run
         ~interface
         ~port
         ~stop
-        ?debug
         ~error_handler
         ~https:(if https then `OpenSSL else `No)
         ?certificate_file ?key_file
diff --git a/src/middleware/catch.ml b/src/middleware/catch.ml
index 01cc30ca..c661eaa7 100644
--- a/src/middleware/catch.ml
+++ b/src/middleware/catch.ml
@@ -40,7 +40,6 @@ let catch_errors next_handler request =
           response = Some response;
           client = Some (Dream.client request);
           severity = severity;
-          debug = Dream.debug (Dream.app request);
           will_send_response = true;
         } in
 
@@ -64,7 +63,6 @@ let catch_errors next_handler request =
         response = None;
         client = Some (Dream.client request);
         severity = `Error;
-        debug = Dream.debug (Dream.app request);
         will_send_response = true;
       } in
 
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index d5866232..56555659 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -395,7 +395,6 @@ type error = {
   response : response option;
   client : string option;
   severity : log_level;
-  debug : bool;
   will_send_response : bool;
 }
 
@@ -403,8 +402,6 @@ type error_handler = error -> response option promise
 
 val new_app : (error -> response Lwt.t) -> app
 val app : request -> app
-val debug : app -> bool
-val set_debug : bool -> app -> unit
 val app_error_handler : app -> (error -> response promise)
 val request_from_http :
   app:app ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 837fba90..a7df9b26 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -71,7 +71,6 @@ and server = {
 }
 
 and app = {
-  mutable app_debug : bool;
   error_handler : error -> response Lwt.t;
 }
 
@@ -111,22 +110,14 @@ and error = {
     | `Info
     | `Debug
   ];
-  debug : bool;
   will_send_response : bool;
 }
 
-let debug app =
-  app.app_debug
-
-let set_debug value app =
-  app.app_debug <- value
-
 (* TODO Remove. *)
 let app_error_handler app =
   app.error_handler
 
 let new_app error_handler = {
-  app_debug = false;
   error_handler;
 }
 

From b355e00f8ff914aac28b1d0915824827c22c1b77 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 11:05:07 +0300
Subject: [PATCH 077/312] Pass error handlers around explicitly

---
 src/dream.mli           | 14 +++++++++-----
 src/http/http.ml        |  6 +++---
 src/middleware/catch.ml | 11 ++++-------
 3 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index f35d6d2c..cadd0a9f 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1954,6 +1954,12 @@ val debug_error_handler : error_handler
 (** An {!error_handler} for showing extra information about requests and
     exceptions, for use during development. *)
 
+val catch : (error -> response promise) -> middleware
+(** Forwards exceptions, rejections, and [4xx], [5xx] responses from the
+    application to the error handler. See {!section-errors}. *)
+(* TODO Error handler should not return an option, and then the type can be
+   used here. *)
+
 
 
 (** {1 Servers} *)
@@ -2055,7 +2061,7 @@ val serve :
       Dream.run ~builtins:false
       @@ Dream.lowercase_headers
       @@ Dream.content_length
-      @@ Dream.catch_errors
+      @@ Dream.catch ~error_handler
       @@ my_app
     ]}
 
@@ -2078,10 +2084,6 @@ val content_length : middleware
     headers are necessary in HTTP/1, and forbidden or redundant and difficult to
     use in HTTP/2. *)
 
-val catch_errors : middleware
-(** Forwards exceptions, rejections, and [4xx], [5xx] responses from the
-    application to the error handler. See {!section-errors}. *)
-
 val with_site_prefix : string -> middleware
 (** Removes the given prefix from the path in each request, and adds it to the
     request prefix. Responds with [502 Bad Gateway] if the path does not have
@@ -2091,6 +2093,8 @@ val with_site_prefix : string -> middleware
     domain. The default is ["/"], for no prefix. After [with_site_prefix],
     routing is done relative to the prefix, and the prefix is also necessary for
     emitting secure cookies. *)
+(* TODO Clarify that this isn't included with the built-ins, but is something on
+   topic that one might want to use. *)
 
 
 
diff --git a/src/http/http.ml b/src/http/http.ml
index 9b3641ca..827af401 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -648,11 +648,11 @@ let ocaml_tls = {
 
 
 
-let built_in_middleware =
+let built_in_middleware error_handler =
   Dream.pipeline [
     Dream__middleware.Lowercase_headers.lowercase_headers;
     Dream__middleware.Content_length.content_length;
-    Dream__middleware.Catch.catch_errors;
+    Dream__middleware.Catch.catch (Error_handler.app error_handler);
   ]
 
 
@@ -675,7 +675,7 @@ let serve_with_details
 
   let user's_dream_handler =
     if builtins then
-      built_in_middleware user's_dream_handler
+      built_in_middleware error_handler user's_dream_handler
     else
       user's_dream_handler
   in
diff --git a/src/middleware/catch.ml b/src/middleware/catch.ml
index c661eaa7..405564e1 100644
--- a/src/middleware/catch.ml
+++ b/src/middleware/catch.ml
@@ -13,8 +13,8 @@ module Dream = Dream_pure
    reaching the centralized error handler provided by the user, so it is built
    into the framework. *)
 
-(* TODO The option thing is pretty awkward. *)
-let catch_errors next_handler request =
+(* TODO The option return value thing is pretty awkward. *)
+let catch error_handler next_handler request =
 
   Lwt.try_bind
 
@@ -43,9 +43,7 @@ let catch_errors next_handler request =
           will_send_response = true;
         } in
 
-        let user's_error_handler =
-          Dream.app_error_handler (Dream.app request) in
-        user's_error_handler error
+        error_handler error
       end
       else
         Lwt.return response)
@@ -66,5 +64,4 @@ let catch_errors next_handler request =
         will_send_response = true;
       } in
 
-      let user's_error_handler = Dream.app_error_handler (Dream.app request) in
-      user's_error_handler error)
+      error_handler error)

From af8085a5f1e7f0cde709c613c90982d281e9033f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 11:12:36 +0300
Subject: [PATCH 078/312] Delete the "app" concept

---
 src/http/error_handler.ml  | 62 ++------------------------------------
 src/http/error_handler.mli |  3 --
 src/http/http.ml           | 35 +++++++--------------
 src/pure/dream_pure.mli    |  8 -----
 src/pure/inmost.ml         | 19 ------------
 5 files changed, 14 insertions(+), 113 deletions(-)

diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index acfbb8c5..3d57e2da 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -264,62 +264,6 @@ let app
 
   respond_with_option (fun () -> user's_error_handler error)
 
-(* let app
-    app user's_error_handler =
-    fun next_handler request ->
-
-  Lwt.try_bind
-
-    (fun () ->
-      next_handler request)
-
-    (fun response ->
-      let status = Dream.status response in
-
-      if Dream.is_client_error status || Dream.is_server_error status then begin
-        let caused_by, severity =
-          if Dream.is_client_error status then
-            `Client, `Warning
-          else
-            `Server, `Error
-        in
-
-        let error = Error.{
-          condition = `Response response;
-          layer = `App;
-          caused_by;
-          request = Some request;
-          response = Some response;
-          client = Some (Dream.client request);
-          severity = severity;
-          debug = Dream.debug app;
-          will_send_response = true;
-        } in
-
-        respond_with_option (fun () -> user's_error_handler error)
-      end
-      else
-        Lwt.return response)
-
-    (* This exception handler is partially redundant, in that the HTTP-level
-       handlers will also catch exceptions. However, this handler is able to
-       capture more relevant context. We leave the HTTP-level handlers for truly
-       severe protocol-level errors and integration mistakes. *)
-    (fun exn ->
-      let error = Error.{
-        condition = `Exn exn;
-        layer = `App;
-        caused_by = `Server;
-        request = Some request;
-        response = None;
-        client = Some (Dream.client request);
-        severity = `Error;
-        debug = Dream.debug app;
-        will_send_response = true;
-      } in
-
-      respond_with_option (fun () -> user's_error_handler error)) *)
-
 
 
 (* TODO Simplify streams. *)
@@ -334,7 +278,7 @@ let default_response = function
     Dream.response ~status:`Bad_Request client_stream server_stream
 
 let httpaf
-    app user's_error_handler =
+    user's_error_handler =
     fun client_address ?request error start_response ->
 
   ignore (request : Httpaf.Request.t option);
@@ -394,7 +338,7 @@ let httpaf
 
 
 let h2
-    app user's_error_handler =
+    user's_error_handler =
     fun client_address ?request error start_response ->
 
   ignore request; (* TODO Recover something from the request. *)
@@ -457,7 +401,7 @@ let h2
    However, SSL protocol errors are not wrapped in any of these, so we add an
    edditional top-level handler to catch them. *)
 let tls
-    app user's_error_handler client_address error =
+    user's_error_handler client_address error =
 
   let error = {
     Dream.condition = `Exn error;
diff --git a/src/http/error_handler.mli b/src/http/error_handler.mli
index cd476551..d25b71c6 100644
--- a/src/http/error_handler.mli
+++ b/src/http/error_handler.mli
@@ -36,17 +36,14 @@ val app :
     (Dream.error -> Dream.response Lwt.t)
 
 val httpaf :
-  Dream.app ->
   Dream.error_handler ->
     (Unix.sockaddr -> Httpaf.Server_connection.error_handler)
 
 val h2 :
-  Dream.app ->
   Dream.error_handler ->
     (Unix.sockaddr -> H2.Server_connection.error_handler)
 
 val tls :
-  Dream.app ->
   Dream.error_handler ->
     (Unix.sockaddr -> exn -> unit)
 
diff --git a/src/http/http.ml b/src/http/http.ml
index 827af401..966c3f10 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -293,7 +293,6 @@ let websocket_handler user's_websocket_handler socket =
    chance to tell the user that something is wrong with their app. *)
 (* TODO Rename conn like in the body branch. *)
 let wrap_handler
-    app
     https
     (user's_error_handler : Dream.error_handler)
     (user's_dream_handler : Dream.handler) =
@@ -339,7 +338,7 @@ let wrap_handler
 
     let request : Dream.request =
       Dream.request_from_http
-        ~app ~client ~method_ ~target ~https ~version ~headers body in
+        ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -445,7 +444,6 @@ let wrap_handler
 
 (* TODO Factor out what is in common between the http/af and h2 handlers. *)
 let wrap_handler_h2
-    app
     https
     (_user's_error_handler : Dream.error_handler)
     (user's_dream_handler : Dream.handler) =
@@ -485,7 +483,7 @@ let wrap_handler_h2
 
     let request : Dream.request =
       Dream.request_from_http
-        ~app ~client ~method_ ~target ~https ~version ~headers body in
+        ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -552,7 +550,6 @@ type tls_library = {
   create_handler :
     certificate_file:string ->
     key_file:string ->
-    app:Dream.app ->
     handler:Dream.handler ->
     error_handler:Dream.error_handler ->
       Unix.sockaddr ->
@@ -563,35 +560,33 @@ type tls_library = {
 let no_tls = {
   create_handler = begin fun
       ~certificate_file:_ ~key_file:_
-      ~app
       ~handler
       ~error_handler ->
     Httpaf_lwt_unix.Server.create_connection_handler
       ?config:None
-      ~request_handler:(wrap_handler app false error_handler handler)
-      ~error_handler:(Error_handler.httpaf app error_handler)
+      ~request_handler:(wrap_handler false error_handler handler)
+      ~error_handler:(Error_handler.httpaf error_handler)
   end;
 }
 
 let openssl = {
   create_handler = begin fun
       ~certificate_file ~key_file
-      ~app
       ~handler
       ~error_handler ->
 
     let httpaf_handler =
       Httpaf_lwt_unix.Server.SSL.create_connection_handler
         ?config:None
-      ~request_handler:(wrap_handler app true error_handler handler)
-      ~error_handler:(Error_handler.httpaf app error_handler)
+      ~request_handler:(wrap_handler true error_handler handler)
+      ~error_handler:(Error_handler.httpaf error_handler)
     in
 
     let h2_handler =
       H2_lwt_unix.Server.SSL.create_connection_handler
         ?config:None
-      ~request_handler:(wrap_handler_h2 app true error_handler handler)
-      ~error_handler:(Error_handler.h2 app error_handler)
+      ~request_handler:(wrap_handler_h2 true error_handler handler)
+      ~error_handler:(Error_handler.h2 error_handler)
     in
 
     let perform_tls_handshake =
@@ -636,14 +631,13 @@ let openssl = {
 let ocaml_tls = {
   create_handler = fun
       ~certificate_file ~key_file
-      ~app
       ~handler
       ~error_handler ->
     Httpaf_lwt_unix.Server.TLS.create_connection_handler_with_default
       ~certfile:certificate_file ~keyfile:key_file
       ?config:None
-      ~request_handler:(wrap_handler app true error_handler handler)
-      ~error_handler:(Error_handler.httpaf app error_handler)
+      ~request_handler:(wrap_handler true error_handler handler)
+      ~error_handler:(Error_handler.httpaf error_handler)
 }
 
 
@@ -664,7 +658,6 @@ let serve_with_details
     ~port
     ~stop
     ~error_handler
-    ~app
     ~certificate_file
     ~key_file
     ~builtins
@@ -685,13 +678,12 @@ let serve_with_details
     tls_library.create_handler
       ~certificate_file
       ~key_file
-      ~app
       ~handler:user's_dream_handler
       ~error_handler
   in
 
   (* TODO Should probably move out to the TLS library options. *)
-  let tls_error_handler = Error_handler.tls app error_handler in
+  let tls_error_handler = Error_handler.tls error_handler in
 
   (* Some parts of the various HTTP servers that are under heavy development
      ( *cough* Gluten SSL/TLS at the moment) leak exceptions out of the
@@ -756,8 +748,6 @@ let serve_with_maybe_https
     ~builtins
     user's_dream_handler =
 
-  let app = Dream.new_app (Error_handler.app error_handler) in
-
   try%lwt
     (* This check will at least catch secrets like "foo" when used on a public
        interface. *)
@@ -778,7 +768,6 @@ let serve_with_maybe_https
         ~port
         ~stop
         ~error_handler
-        ~app
         ~certificate_file:""
         ~key_file:""
         ~builtins
@@ -840,7 +829,6 @@ let serve_with_maybe_https
           ~port
           ~stop
           ~error_handler
-          ~app
           ~certificate_file
           ~key_file
           ~builtins
@@ -869,7 +857,6 @@ let serve_with_maybe_https
           ~port
           ~stop
           ~error_handler
-          ~app
           ~certificate_file
           ~key_file
           ~builtins
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 56555659..63ad95ed 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -363,10 +363,6 @@ val is_websocket : response -> (websocket -> unit promise) option
 
 
 
-(* TODO All of this should become server-side-only once the error handling
-   middleware is clarified. *)
-type app
-
 type log_level = [
   | `Error
   | `Warning
@@ -400,11 +396,7 @@ type error = {
 
 type error_handler = error -> response option promise
 
-val new_app : (error -> response Lwt.t) -> app
-val app : request -> app
-val app_error_handler : app -> (error -> response promise)
 val request_from_http :
-  app:app ->
   client:string ->
   method_:method_ ->
   target:string ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index a7df9b26..c0d91c29 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -52,7 +52,6 @@ and 'a message = {
 }
 
 and client = {
-  app : app;
   request_client : string;
   method_ : method_;
   target : string;
@@ -70,10 +69,6 @@ and server = {
   websocket : (websocket -> unit Lwt.t) option;
 }
 
-and app = {
-  error_handler : error -> response Lwt.t;
-}
-
 and error_handler = error -> response option Lwt.t
 
 and log_level = [
@@ -113,14 +108,6 @@ and error = {
   will_send_response : bool;
 }
 
-(* TODO Remove. *)
-let app_error_handler app =
-  app.error_handler
-
-let new_app error_handler = {
-  error_handler;
-}
-
 type 'a promise = 'a Lwt.t
 
 type handler = request -> response Lwt.t
@@ -398,11 +385,7 @@ let with_local key value message =
 let fold_locals f initial message =
   fold_scope f initial message.locals
 
-let app request =
-  request.specific.app
-
 let request_from_http
-    ~app
     ~client
     ~method_
     ~target
@@ -415,7 +398,6 @@ let request_from_http
 
   let rec request = {
     specific = {
-      app;
       request_client = client;
       method_;
       target;
@@ -459,7 +441,6 @@ let request
     specific = {
       (* TODO Is there a better fake error handler? Maybe this function should
          come after the response constructors? *)
-      app = new_app (fun _ -> assert false);
       request_client = client;
       method_;
       target;

From 037645f5ff489f8b99f192506607610fb03224a6 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 13:27:07 +0300
Subject: [PATCH 079/312] Move client field from dream-pure to server

---
 src/dream.ml              |  9 +++++++--
 src/dream.mli             |  1 -
 src/http/error_handler.ml |  5 +++--
 src/http/http.ml          |  7 +++----
 src/middleware/catch.ml   |  4 ++--
 src/middleware/log.ml     |  2 +-
 src/middleware/server.ml  | 35 +++++++++++++++++++++++++++++++++++
 src/pure/dream_pure.mli   |  4 ----
 src/pure/inmost.ml        | 12 ------------
 9 files changed, 51 insertions(+), 28 deletions(-)
 create mode 100644 src/middleware/server.ml

diff --git a/src/dream.ml b/src/dream.ml
index 914f8c9a..f0f3b358 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -130,11 +130,16 @@ let verify_csrf_token = verify_csrf_token ~now
 let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
   form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
 
-let request ?client ?method_ ?target ?version ?headers body =
+let client =
+  Dream__middleware.Server.client
+let with_client =
+  Dream__middleware.Server.with_client
+
+let request ?method_ ?target ?version ?headers body =
   (* TODO Streams. *)
   let client_stream = Dream_pure.Stream.stream no_reader no_writer
   and server_stream = Dream_pure.Stream.stream (string body) no_writer in
-  request ?client ?method_ ?target ?version ?headers client_stream server_stream
+  request ?method_ ?target ?version ?headers client_stream server_stream
 
 let response ?status ?code ?headers body =
   (* TODO Streams. *)
diff --git a/src/dream.mli b/src/dream.mli
index cadd0a9f..27301312 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2311,7 +2311,6 @@ val with_local : 'a local -> 'a -> 'b message -> 'b message
 (** {1 Testing} *)
 
 val request :
-  ?client:string ->
   ?method_:[< method_ ] ->
   ?target:string ->
   ?version:int * int ->
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 3d57e2da..26d1cccd 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -6,6 +6,7 @@
 
 
 module Dream = Dream_pure
+module Server = Dream__middleware.Server
 
 
 
@@ -440,7 +441,7 @@ let websocket
     caused_by = `Server;
     request = Some request;
     response = Some response;
-    client = Some (Dream.client request);
+    client = Some (Server.client request);
     severity = `Warning;   (* Not sure what these errors are, yet. *)
     will_send_response = false;
   } in
@@ -462,7 +463,7 @@ let websocket_handshake
     caused_by = `Client;
     request = Some request;
     response = Some response;
-    client = Some (Dream.client request);
+    client = Some (Server.client request);
     severity = `Warning;
     will_send_response = true;
   } in
diff --git a/src/http/http.ml b/src/http/http.ml
index 966c3f10..3a7e62d3 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -7,6 +7,7 @@
 
 module Dream = Dream_pure
 module Stream = Dream_pure.Stream
+module Server = Dream__middleware.Server
 
 
 
@@ -337,8 +338,7 @@ let wrap_handler
       Stream.stream body Stream.no_writer in
 
     let request : Dream.request =
-      Dream.request_from_http
-        ~client ~method_ ~target ~https ~version ~headers body in
+      Server.request ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -482,8 +482,7 @@ let wrap_handler_h2
       Stream.stream body Stream.no_writer in
 
     let request : Dream.request =
-      Dream.request_from_http
-        ~client ~method_ ~target ~https ~version ~headers body in
+      Server.request ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
diff --git a/src/middleware/catch.ml b/src/middleware/catch.ml
index 405564e1..a6f59a03 100644
--- a/src/middleware/catch.ml
+++ b/src/middleware/catch.ml
@@ -38,7 +38,7 @@ let catch error_handler next_handler request =
           caused_by;
           request = Some request;
           response = Some response;
-          client = Some (Dream.client request);
+          client = Some (Server.client request);
           severity = severity;
           will_send_response = true;
         } in
@@ -59,7 +59,7 @@ let catch error_handler next_handler request =
         caused_by = `Server;
         request = Some request;
         response = None;
-        client = Some (Dream.client request);
+        client = Some (Server.client request);
         severity = `Error;
         will_send_response = true;
       } in
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index a7d69a89..77651d25 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -477,7 +477,7 @@ struct
       log ~request "%s %s %s %s"
         (Dream.method_to_string (Dream.method_ request))
         (Dream.target request)
-        (Dream.client request)
+        (Server.client request)
         user_agent);
 
     (* Call the rest of the app. *)
diff --git a/src/middleware/server.ml b/src/middleware/server.ml
new file mode 100644
index 00000000..d7047ae9
--- /dev/null
+++ b/src/middleware/server.ml
@@ -0,0 +1,35 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+module Dream = Dream_pure
+
+
+
+let client_variable =
+  Dream.new_local
+    ~name:"dream.client"
+    ~show_value:(fun client -> client)
+    ()
+
+(* TODO What should be reported when the client address is missing? This is a
+   sign of local testing. *)
+let client request =
+  match Dream.local client_variable request with
+  | None -> "127.0.0.1:0"
+  | Some client -> client
+
+let with_client client request =
+  Dream.with_local client_variable client request
+
+
+
+(* TODO Eventually remove Dream.request_from_http as all of its functionality
+   is moved here. *)
+let request ~client ~method_ ~target ~https ~version ~headers server_stream =
+  Dream.request_from_http
+    ~method_ ~target ~https ~version ~headers server_stream
+  |> with_client client
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 63ad95ed..062158c8 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -133,7 +133,6 @@ val normalize_status : [< status ] -> status
 
 
 val request :
-  ?client:string ->
   ?method_:[< method_ ] ->
   ?target:string ->
   ?version:int * int ->
@@ -142,7 +141,6 @@ val request :
   stream ->
     request
 
-val client : request -> string
 val https : request -> bool
 val method_ : request -> method_
 val target : request -> string
@@ -150,7 +148,6 @@ val prefix : request -> string
 val internal_prefix : request -> string list
 val path : request -> string list
 val version : request -> int * int
-val with_client : string -> request -> request
 val with_method_ : [< method_ ] -> request -> request
 val with_prefix : string list -> request -> request
 val with_path : string list -> request -> request
@@ -397,7 +394,6 @@ type error = {
 type error_handler = error -> response option promise
 
 val request_from_http :
-  client:string ->
   method_:method_ ->
   target:string ->
   https:bool ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index c0d91c29..ab24f7fc 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -52,7 +52,6 @@ and 'a message = {
 }
 
 and client = {
-  request_client : string;
   method_ : method_;
   target : string;
   prefix : string list;
@@ -123,9 +122,6 @@ let update message =
   message.last := message;
   message
 
-let client request =
-  request.specific.request_client
-
 let https request =
   request.specific.https
 
@@ -147,10 +143,6 @@ let path request =
 let version request =
   request.specific.request_version
 
-let with_client client request =
-  update
-    {request with specific = {request.specific with request_client = client}}
-
 let with_method_ method_ request =
   update {request with
     specific = {request.specific with method_ = (method_ :> method_)}}
@@ -386,7 +378,6 @@ let fold_locals f initial message =
   fold_scope f initial message.locals
 
 let request_from_http
-    ~client
     ~method_
     ~target
     ~https
@@ -398,7 +389,6 @@ let request_from_http
 
   let rec request = {
     specific = {
-      request_client = client;
       method_;
       target;
       prefix = [];
@@ -419,7 +409,6 @@ let request_from_http
   request
 
 let request
-    ?(client = "127.0.0.1:12345")
     ?method_
     ?(target = "/")
     ?(version = 1, 1)
@@ -441,7 +430,6 @@ let request
     specific = {
       (* TODO Is there a better fake error handler? Maybe this function should
          come after the response constructors? *)
-      request_client = client;
       method_;
       target;
       prefix = [];

From 3dcb88d6eab010273818d5eca8d7d5a90fe3b2df Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 13:40:24 +0300
Subject: [PATCH 080/312] Move https field from dream-pure to server

---
 src/dream.ml                            |  2 ++
 src/middleware/cookie.ml                |  4 ++--
 src/middleware/origin_referrer_check.ml |  4 ++--
 src/middleware/server.ml                | 20 ++++++++++++++++++--
 src/pure/dream_pure.mli                 |  2 --
 src/pure/inmost.ml                      |  7 -------
 6 files changed, 24 insertions(+), 15 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index f0f3b358..67da3e4e 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -134,6 +134,8 @@ let client =
   Dream__middleware.Server.client
 let with_client =
   Dream__middleware.Server.with_client
+let https =
+  Dream__middleware.Server.https
 
 let request ?method_ ?target ?version ?headers body =
   (* TODO Streams. *)
diff --git a/src/middleware/cookie.ml b/src/middleware/cookie.ml
index cd6fd8bc..19d7d783 100644
--- a/src/middleware/cookie.ml
+++ b/src/middleware/cookie.ml
@@ -39,7 +39,7 @@ let cookie
   let secure =
     match secure with
     | Some secure -> secure
-    | None -> Dream.https request
+    | None -> Server.https request
   in
 
   let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
@@ -83,7 +83,7 @@ let set_cookie
   let secure =
     match secure with
     | Some secure -> secure
-    | None -> Dream.https request
+    | None -> Server.https request
   in
 
   let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
diff --git a/src/middleware/origin_referrer_check.ml b/src/middleware/origin_referrer_check.ml
index 3668d3ae..b265877a 100644
--- a/src/middleware/origin_referrer_check.ml
+++ b/src/middleware/origin_referrer_check.ml
@@ -54,8 +54,8 @@ let origin_referrer_check inner_handler request =
 
         let schemes_match =
           match Uri.scheme origin_uri with
-          | Some "http" -> not (Dream.https request)
-          | Some "https" -> Dream.https request
+          | Some "http" -> not (Server.https request)
+          | Some "https" -> Server.https request
           | _ -> false
         in
 
diff --git a/src/middleware/server.ml b/src/middleware/server.ml
index d7047ae9..021dfbb0 100644
--- a/src/middleware/server.ml
+++ b/src/middleware/server.ml
@@ -27,9 +27,25 @@ let with_client client request =
 
 
 
+let https_variable =
+  Dream.new_local
+    ~name:"dream.https"
+    ~show_value:string_of_bool
+    ()
+
+let https request =
+  match Dream.local https_variable request with
+  | Some true -> true
+  | _ -> false
+
+let with_https https request =
+  Dream.with_local https_variable https request
+
+
+
 (* TODO Eventually remove Dream.request_from_http as all of its functionality
    is moved here. *)
 let request ~client ~method_ ~target ~https ~version ~headers server_stream =
-  Dream.request_from_http
-    ~method_ ~target ~https ~version ~headers server_stream
+  Dream.request_from_http ~method_ ~target ~version ~headers server_stream
   |> with_client client
+  |> with_https https
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 062158c8..0be0938e 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -141,7 +141,6 @@ val request :
   stream ->
     request
 
-val https : request -> bool
 val method_ : request -> method_
 val target : request -> string
 val prefix : request -> string
@@ -396,7 +395,6 @@ type error_handler = error -> response option promise
 val request_from_http :
   method_:method_ ->
   target:string ->
-  https:bool ->
   version:int * int ->
   headers:(string * string) list ->
   stream ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index ab24f7fc..633e8f46 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -57,7 +57,6 @@ and client = {
   prefix : string list;
   path : string list;
   query : (string * string) list;
-  https : bool;
   request_version : int * int;
   upload : multipart_state;
 }
@@ -122,9 +121,6 @@ let update message =
   message.last := message;
   message
 
-let https request =
-  request.specific.https
-
 let method_ request =
   request.specific.method_
 
@@ -380,7 +376,6 @@ let fold_locals f initial message =
 let request_from_http
     ~method_
     ~target
-    ~https
     ~version
     ~headers
     body =
@@ -394,7 +389,6 @@ let request_from_http
       prefix = [];
       path = Formats.from_path path;
       query = Formats.from_form_urlencoded query;
-      https;
       request_version = version;
       upload = initial_multipart_state ();
     };
@@ -435,7 +429,6 @@ let request
       prefix = [];
       path = Formats.from_path path;
       query = Formats.from_form_urlencoded query;
-      https = false;
       request_version = version;
       upload = initial_multipart_state ();
     };

From 0c7b464f90f5086e6158d3778af01ef15925d7be Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 18:47:08 +0300
Subject: [PATCH 081/312] Move paths and prefixes from dream-pure to server

---
 src/middleware/cookie.ml      |  4 +--
 src/middleware/router.ml      | 64 +++++++++++++++++++++++++++++------
 src/middleware/router.mli     |  6 ++++
 src/middleware/site_prefix.ml |  6 ++--
 src/pure/dream_pure.mli       |  6 +---
 src/pure/inmost.ml            | 22 ------------
 src/unix/dune                 |  1 +
 src/unix/static.ml            |  2 +-
 8 files changed, 68 insertions(+), 43 deletions(-)

diff --git a/src/middleware/cookie.ml b/src/middleware/cookie.ml
index 19d7d783..36e6afe3 100644
--- a/src/middleware/cookie.ml
+++ b/src/middleware/cookie.ml
@@ -33,7 +33,7 @@ let cookie
   let path =
     match path with
     | Some path -> path
-    | None -> Some (Dream.prefix request)
+    | None -> Some (Router.prefix request)
   in
 
   let secure =
@@ -77,7 +77,7 @@ let set_cookie
   let path =
     match path with
     | Some path -> path
-    | None -> Some (Dream.prefix request)
+    | None -> Some (Router.prefix request)
   in
 
   let secure =
diff --git a/src/middleware/router.ml b/src/middleware/router.ml
index b5bc3913..f80a17ca 100644
--- a/src/middleware/router.ml
+++ b/src/middleware/router.ml
@@ -163,9 +163,53 @@ let scope prefix middlewares routes =
 
 
 
-(* TODO LATER Pretty-print for the debugger. *)
-let params : (string * string) list Dream.local =
-  Dream.new_local ()
+let path_variable : string list Dream.local =
+  Dream.new_local
+    ~name:"dream.path"
+    ~show_value:(fun path -> String.concat "/" path)
+    ()
+
+(* TODO It would be nice not to repeat the work of splitting the path and query
+   string. *)
+(* TODO Remove this from the API. *)
+let path the_request =
+  match Dream.local path_variable the_request with
+  | Some path -> path
+  | None ->
+    Dream.(Formats.(the_request |> target |> split_target |> fst |> from_path))
+
+(* TODO Move site_prefix into this file and remove with_path from the API. *)
+let with_path path request =
+  Dream.with_local path_variable path request
+
+(* Prefix is stored backwards. *)
+let prefix_variable : string list Dream.local =
+  Dream.new_local
+    ~name:"dream.prefix"
+    ~show_value:(fun prefix -> String.concat "/" (List.rev prefix))
+    ()
+
+let internal_prefix request =
+  match Dream.local prefix_variable request with
+  | Some prefix -> prefix
+  | None -> []
+
+let prefix request =
+  Dream.Formats.make_path (List.rev (internal_prefix request))
+
+let with_prefix prefix request =
+  Dream.with_local prefix_variable prefix request
+
+let params_variable : (string * string) list Dream.local =
+  Dream.new_local
+    ~name:"dream.params"
+    ~show_value:(fun params ->
+      params
+      |> List.map (fun (param, value) -> Printf.sprintf "%s=%s" param value)
+      |> String.concat ", ")
+    ()
+
+
 
 let log =
   Log.sub_log "dream.router"
@@ -176,7 +220,7 @@ let missing_param name request =
   failwith message
 
 let param name request =
-  match Dream.local params request with
+  match Dream.local params_variable request with
   | None -> missing_param name request
   | Some params ->
     try List.assoc name params
@@ -215,11 +259,11 @@ let router routes =
       match node with
       | Handler (method_, handler)
           when method_matches method_ (Dream.method_ request) ->
-        let request = Dream.with_local params bindings request in
+        let request = Dream.with_local params_variable bindings request in
         if is_wildcard then
           request
-          |> Dream.with_prefix prefix
-          |> Dream.with_path path
+          |> with_prefix prefix
+          |> with_path path
           |> ok handler
         else
           if path = [] then
@@ -233,14 +277,14 @@ let router routes =
     in
 
     let params =
-      match Dream.local params request with
+      match Dream.local params_variable request with
       | Some params -> params
       | None -> []
     in
 
     (* let next_prefix = Dream.next_prefix request *)
-    let prefix = Dream.internal_prefix request in
-    let path = Dream.path request in
+    let prefix = internal_prefix request in
+    let path = path request in
 
     (* match match_site_prefix next_prefix path with
     | None -> next_handler request
diff --git a/src/middleware/router.mli b/src/middleware/router.mli
index 77161c7f..7486979f 100644
--- a/src/middleware/router.mli
+++ b/src/middleware/router.mli
@@ -31,6 +31,12 @@ val scope : string -> Dream.middleware list -> route list -> route
 val router : route list -> Dream.middleware
 val param : string -> Dream.request -> string
 
+(* Variables used by the router. *)
+val path : Dream.request -> string list
+val prefix : Dream.request -> string
+val with_path : string list -> Dream.request -> Dream.request
+val with_prefix : string list -> Dream.request -> Dream.request
+
 (**/**)
 
 type token =
diff --git a/src/middleware/site_prefix.ml b/src/middleware/site_prefix.ml
index bc7aab29..469f0cd3 100644
--- a/src/middleware/site_prefix.ml
+++ b/src/middleware/site_prefix.ml
@@ -31,7 +31,7 @@ let with_site_prefix prefix =
     |> Dream_pure.Formats.drop_trailing_slash
   in
   fun next_handler request ->
-    match match_site_prefix prefix (Dream.path request) with
+    match match_site_prefix prefix (Router.path request) with
     | None ->
       (* TODO Streams. *)
       let client_stream = Dream.Stream.(stream empty no_writer)
@@ -43,6 +43,6 @@ let with_site_prefix prefix =
          result in the app. *)
       let prefix_reversed = List.rev prefix in
       request
-      |> Dream.with_prefix prefix_reversed
-      |> Dream.with_path path
+      |> Router.with_prefix prefix_reversed
+      |> Router.with_path path
       |> next_handler
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 0be0938e..68616b73 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -143,13 +143,8 @@ val request :
 
 val method_ : request -> method_
 val target : request -> string
-val prefix : request -> string
-val internal_prefix : request -> string list
-val path : request -> string list
 val version : request -> int * int
 val with_method_ : [< method_ ] -> request -> request
-val with_prefix : string list -> request -> request
-val with_path : string list -> request -> request
 val with_version : int * int -> request -> request
 (* TODO Path handling should also be done by server-side-only helpers. *)
 val query : string -> request -> string option
@@ -425,6 +420,7 @@ sig
   val from_path : string -> string list
   val to_path : ?relative:bool -> ?international:bool -> string list -> string
   val drop_trailing_slash : string list -> string list
+  val make_path : string list -> string
   val text_html : string
   val application_json : string
 end
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 633e8f46..95eddc41 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -54,13 +54,10 @@ and 'a message = {
 and client = {
   method_ : method_;
   target : string;
-  prefix : string list;
-  path : string list;
   query : (string * string) list;
   request_version : int * int;
   upload : multipart_state;
 }
-(* Prefix is stored backwards. *)
 
 and server = {
   status : status;
@@ -127,15 +124,6 @@ let method_ request =
 let target request =
   request.specific.target
 
-let internal_prefix request =
-  request.specific.prefix
-
-let prefix request =
-  Formats.make_path (List.rev request.specific.prefix)
-
-let path request =
-  request.specific.path
-
 let version request =
   request.specific.request_version
 
@@ -143,12 +131,6 @@ let with_method_ method_ request =
   update {request with
     specific = {request.specific with method_ = (method_ :> method_)}}
 
-let with_prefix prefix request =
-  update {request with specific = {request.specific with prefix}}
-
-let with_path path request =
-  update {request with specific = {request.specific with path}}
-
 let with_version version request =
   update {request with
     specific = {request.specific with request_version = version}}
@@ -386,8 +368,6 @@ let request_from_http
     specific = {
       method_;
       target;
-      prefix = [];
-      path = Formats.from_path path;
       query = Formats.from_form_urlencoded query;
       request_version = version;
       upload = initial_multipart_state ();
@@ -426,8 +406,6 @@ let request
          come after the response constructors? *)
       method_;
       target;
-      prefix = [];
-      path = Formats.from_path path;
       query = Formats.from_form_urlencoded query;
       request_version = version;
       upload = initial_multipart_state ();
diff --git a/src/unix/dune b/src/unix/dune
index 824895de..7cc1e262 100644
--- a/src/unix/dune
+++ b/src/unix/dune
@@ -3,6 +3,7 @@
  (name dream__unix)
  (libraries
   digestif
+  dream.middleware
   dream-pure
   lwt.unix
   magic-mime
diff --git a/src/unix/static.ml b/src/unix/static.ml
index 5c09e463..3ce56849 100644
--- a/src/unix/static.ml
+++ b/src/unix/static.ml
@@ -47,7 +47,7 @@ let from_filesystem local_root path _ =
 (* TODO On Windows, should we also check for \ and drive letters? *)
 (* TODO Not an efficient implementation at the moment. *)
 let validate_path request =
-  let path = Dream.path request in
+  let path = Dream__middleware.Router.path request in
 
   let has_slash component = String.contains component '/' in
   let has_backslash component = String.contains component '\\' in

From 598367067b9d8d77b07261733a414889198b1133 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 18:56:20 +0300
Subject: [PATCH 082/312] Move query strings from dream-pure to server

---
 src/dream.ml            |  2 ++
 src/middleware/query.ml | 41 +++++++++++++++++++++++++++++++++++++++++
 src/pure/dream_pure.mli |  4 ----
 src/pure/inmost.ml      | 23 -----------------------
 4 files changed, 43 insertions(+), 27 deletions(-)
 create mode 100644 src/middleware/query.ml

diff --git a/src/dream.ml b/src/dream.ml
index 67da3e4e..c545b21c 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -137,6 +137,8 @@ let with_client =
 let https =
   Dream__middleware.Server.https
 
+include Dream__middleware.Query
+
 let request ?method_ ?target ?version ?headers body =
   (* TODO Streams. *)
   let client_stream = Dream_pure.Stream.stream no_reader no_writer
diff --git a/src/middleware/query.ml b/src/middleware/query.ml
new file mode 100644
index 00000000..86e2a299
--- /dev/null
+++ b/src/middleware/query.ml
@@ -0,0 +1,41 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+(* TODO Long-term, query string handler is likely to become part of the
+   router. *)
+
+module Dream = Dream_pure
+
+
+
+(* TODO Actually cache the result of parsing the query string. *)
+(* let query_variable : (string * string) list Dream.local =
+  Dream.new_local
+    ~name:"dream.query"
+    ~show_value:(fun query ->
+      query
+      |> List.map (fun (name, value) -> Printf.sprintf "%s=%s" name value)
+      |> String.concat ", ") *)
+
+let all_queries request =
+  Dream.target request
+  |> Dream.Formats.split_target
+  |> snd
+  |> Dream.Formats.from_form_urlencoded
+
+let query name request =
+  List.assoc_opt name (all_queries request)
+
+let queries name request =
+  all_queries request
+  |> List.fold_left (fun accumulator (name', value) ->
+    if name' = name then
+      value::accumulator
+    else
+      accumulator)
+    []
+  |> List.rev
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 68616b73..4019cf3a 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -146,10 +146,6 @@ val target : request -> string
 val version : request -> int * int
 val with_method_ : [< method_ ] -> request -> request
 val with_version : int * int -> request -> request
-(* TODO Path handling should also be done by server-side-only helpers. *)
-val query : string -> request -> string option
-val queries : string -> request -> string list
-val all_queries : request -> (string * string) list
 
 
 
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 95eddc41..b029edef 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -54,7 +54,6 @@ and 'a message = {
 and client = {
   method_ : method_;
   target : string;
-  query : (string * string) list;
   request_version : int * int;
   upload : multipart_state;
 }
@@ -138,23 +137,6 @@ let with_version version request =
 let status response =
   response.specific.status
 
-let all_queries request =
-  request.specific.query
-
-(* TODO percent-decode name and value. *)
-let query name request =
-  List.assoc_opt name request.specific.query
-
-let queries name request =
-  request.specific.query
-  |> List.fold_left (fun accumulator (name', value) ->
-    if name' = name then
-      value::accumulator
-    else
-      accumulator)
-    []
-  |> List.rev
-
 let all_headers message =
   message.headers
 
@@ -362,13 +344,10 @@ let request_from_http
     ~headers
     body =
 
-  let path, query = Formats.split_target target in
-
   let rec request = {
     specific = {
       method_;
       target;
-      query = Formats.from_form_urlencoded query;
       request_version = version;
       upload = initial_multipart_state ();
     };
@@ -398,7 +377,6 @@ let request
 
   (* This function is used for debugging, so it's fine to allocate a fake body
      and then immediately replace it. *)
-  let path, query = Formats.split_target target in
 
   let rec request = {
     specific = {
@@ -406,7 +384,6 @@ let request
          come after the response constructors? *)
       method_;
       target;
-      query = Formats.from_form_urlencoded query;
       request_version = version;
       upload = initial_multipart_state ();
     };

From 267e2de87b41a83e81c8287dbb37a54676db8e32 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 19:03:24 +0300
Subject: [PATCH 083/312] Move html and json helpers from dream-pure

---
 src/dream.ml             |  4 ++++
 src/graphql/graphql.ml   |  9 +++++----
 src/middleware/server.ml | 18 ++++++++++++++++++
 src/pure/dream_pure.mli  | 13 -------------
 src/pure/inmost.ml       | 16 ----------------
 5 files changed, 27 insertions(+), 33 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index c545b21c..2515a5e4 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -136,6 +136,10 @@ let with_client =
   Dream__middleware.Server.with_client
 let https =
   Dream__middleware.Server.https
+let html =
+  Dream__middleware.Server.html
+let json =
+  Dream__middleware.Server.json
 
 include Dream__middleware.Query
 
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index c63c940f..c5b0bf55 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -6,6 +6,7 @@
 
 
 module Dream = Dream_pure
+module Server = Dream__middleware.Server
 
 
 
@@ -299,16 +300,16 @@ let graphql make_context schema = fun request ->
       begin match%lwt run_query make_context schema request json with
       | Error json ->
         Yojson.Basic.to_string json
-        |> Dream.json
+        |> Server.json
 
       | Ok (`Response json) ->
         Yojson.Basic.to_string json
-        |> Dream.json
+        |> Server.json
 
       | Ok (`Stream _) ->
         make_error "Subscriptions and streaming should use WebSocket transport"
         |> Yojson.Basic.to_string
-        |> Dream.json
+        |> Server.json
       end
 
     | _ ->
@@ -351,4 +352,4 @@ let graphiql ?(default_query = "") graphql_endpoint =
   in
 
   fun _request ->
-    Dream.html (Lazy.force html)
+    Server.html (Lazy.force html)
diff --git a/src/middleware/server.ml b/src/middleware/server.ml
index 021dfbb0..f99aa8ee 100644
--- a/src/middleware/server.ml
+++ b/src/middleware/server.ml
@@ -49,3 +49,21 @@ let request ~client ~method_ ~target ~https ~version ~headers server_stream =
   Dream.request_from_http ~method_ ~target ~version ~headers server_stream
   |> with_client client
   |> with_https https
+
+
+
+let html ?status ?code ?headers body =
+  (* TODO The streams. *)
+  let client_stream = Dream.Stream.(stream (string body) no_writer)
+  and server_stream = Dream.Stream.(stream no_reader no_writer) in
+  Dream.response ?status ?code ?headers client_stream server_stream
+  |> Dream.with_header "Content-Type" Dream.Formats.text_html
+  |> Lwt.return
+
+let json ?status ?code ?headers body =
+  (* TODO The streams. *)
+  let client_stream = Dream.Stream.(stream (string body) no_writer)
+  and server_stream = Dream.Stream.(stream no_reader no_writer) in
+  Dream.response ?status ?code ?headers client_stream server_stream
+  |> Dream.with_header "Content-Type" Dream.Formats.application_json
+  |> Lwt.return
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 4019cf3a..7c015f6b 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -157,19 +157,6 @@ val response :
   stream ->
     response
 
-val html :
-  ?status:[< status ] ->
-  ?code:int ->
-  ?headers:(string * string) list ->
-    string -> response promise
-(* TODO Remove these. *)
-
-val json :
-  ?status:[< status ] ->
-  ?code:int ->
-  ?headers:(string * string) list ->
-    string -> response promise
-
 val status : response -> status
 
 
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index b029edef..6ca07b5d 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -423,22 +423,6 @@ let response
 
   response
 
-let html ?status ?code ?headers body =
-  (* TODO The streams. *)
-  let client_stream = Stream.(stream (string body) no_writer)
-  and server_stream = Stream.(stream no_reader no_writer) in
-  response ?status ?code ?headers client_stream server_stream
-  |> with_header "Content-Type" Formats.text_html
-  |> Lwt.return
-
-let json ?status ?code ?headers body =
-  (* TODO The streams. *)
-  let client_stream = Stream.(stream (string body) no_writer)
-  and server_stream = Stream.(stream no_reader no_writer) in
-  response ?status ?code ?headers client_stream server_stream
-  |> with_header "Content-Type" Formats.application_json
-  |> Lwt.return
-
 let websocket ?headers handler =
   (* TODO Simplify stream creation. *)
   let client_stream = Stream.(stream empty no_writer)

From 5d391a62a203e40bbe5747a4d3845ffe40f04489 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 19:05:44 +0300
Subject: [PATCH 084/312] Move all_cookies from dream-pure to server

---
 src/middleware/cookie.ml | 20 +++++++++++++++++++-
 src/pure/dream_pure.mli  |  5 -----
 2 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/src/middleware/cookie.ml b/src/middleware/cookie.ml
index 36e6afe3..23248d3b 100644
--- a/src/middleware/cookie.ml
+++ b/src/middleware/cookie.ml
@@ -11,6 +11,24 @@ module Cipher = Dream__cipher.Cipher
 
 
 
+(* TODO LATER Optimize by caching the parsed cookies in a local key. *)
+(* TODO LATER: API: Dream.cookie : string -> request -> string, cookie-option...
+   the thing with cookies is that they have a high likelihood of being absent. *)
+(* TODO LATER Can decide whether to accept multiple Cookie: headers based on
+   request version. But that would entail an actual middleware - is that worth
+   it? *)
+(* TODO LATER Also not efficient, at all. Need faster parser + the cache. *)
+(* TODO DOC Using only raw cookies. *)
+(* TODO However, is it best to URL-encode cookies by default, and provide a
+   variable for opting out? *)
+(* TODO DOC We allow multiple headers sent by the client, to support HTTP/2.
+   What is this about? *)
+let all_cookies request =
+  request
+  |> Dream.headers "Cookie"
+  |> List.map Formats.from_cookie
+  |> List.flatten
+
 let infer_cookie_prefix prefix domain path secure =
   match prefix, domain, path, secure with
     | Some (Some `Host), _, _, _ -> "__Host-"
@@ -46,7 +64,7 @@ let cookie
   let name = cookie_prefix ^ name in
   let test = fun (name', _) -> name = name' in
 
-  match Dream.all_cookies request |> List.find_opt test with
+  match all_cookies request |> List.find_opt test with
   | None -> None
   | Some (_, value) ->
     if not decrypt_cookie then
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 7c015f6b..4167a96b 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -172,11 +172,6 @@ val with_all_headers : (string * string) list -> 'a message -> 'a message
 
 
 
-val all_cookies : request -> (string * string) list
-(* TODO Should become server-side-only. *)
-
-
-
 val body : 'a message -> string promise
 val with_body : string -> response -> response
 val read : request -> string option promise

From 918cb3cb35c82ea57358f4b1b6061176c05e49cb Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 19:12:25 +0300
Subject: [PATCH 085/312] Move multipart state from dream-pure and break it

It will be much easier to reimplement multipart upload state once
requests become mutable, since the state can be simply written into the
request. For now, multipart uploads are broken.
---
 src/middleware/upload.ml | 39 ++++++++++++++++++++++++++++++----
 src/pure/dream_pure.mli  | 10 ---------
 src/pure/inmost.ml       | 45 ----------------------------------------
 3 files changed, 35 insertions(+), 59 deletions(-)

diff --git a/src/middleware/upload.ml b/src/middleware/upload.ml
index cd9a024b..c9427dac 100644
--- a/src/middleware/upload.ml
+++ b/src/middleware/upload.ml
@@ -9,13 +9,44 @@ module Dream = Dream_pure
 
 
 
+(* Used for converting the stream interface of [multipart_form] into the pull
+   interface of Dream.
+
+   [state] permits to dissociate the initial state made by
+   [initial_multipart_state] and one which started to consume the body stream
+   (see the call of [Upload.upload]). *)
+type multipart_state = {
+  mutable state_init : bool;
+  mutable name : string option;
+  mutable filename : string option;
+  mutable stream : (< > * Multipart_form.Header.t * string Lwt_stream.t) Lwt_stream.t;
+}
+
+let initial_multipart_state () = {
+  state_init = true;
+  name = None;
+  filename = None;
+  stream = Lwt_stream.of_list [];
+}
+
+(* TODO Dump the value of the multipart state somehow? *)
+let multipart_state_variable : multipart_state Dream.local =
+  Dream.new_local
+    ~name:"dream.multipart"
+    ()
+
+(* TODO This would be MUCH easier if requests were mutable. It's probably best
+   to just break multipart until then, and have the branch be "unstable." *)
+let multipart_state request =
+  assert false
+
 let field_to_string (request : Dream.request) field =
   let open Multipart_form in
   match field with
   | Field.Field (field_name, Field.Content_type, v) ->
     (field_name :> string), Content_type.to_string v
   | Field.Field (field_name, Field.Content_disposition, v) ->
-    let state = Dream.multipart_state request in
+    let state = multipart_state request in
     state.filename <- Content_disposition.filename v ;
     state.name <- Content_disposition.name v ;
     (field_name :> string), Content_disposition.to_string v
@@ -27,7 +58,7 @@ let field_to_string (request : Dream.request) field =
 let log = Log.sub_log "dream.upload"
 
 let upload_part (request : Dream.request) =
-  let state = Dream.multipart_state request in
+  let state = multipart_state request in
   match%lwt Lwt_stream.peek state.stream with
   | None -> Lwt.return_none
   | Some (_uid, _header, stream) ->
@@ -44,7 +75,7 @@ let identify _ = object end
 type part = string option * string option * ((string * string) list)
 
 let rec state (request : Dream.request) =
-  let state' = Dream.multipart_state request in
+  let state' = multipart_state request in
   let stream = state'.stream in
   match%lwt Lwt_stream.peek stream with
   | None -> let%lwt () = Lwt_stream.junk stream in Lwt.return_none
@@ -59,7 +90,7 @@ let rec state (request : Dream.request) =
     Lwt.return (Some part)
 
 and upload (request : Dream.request) =
-  let state' = Dream.multipart_state request in
+  let state' = multipart_state request in
   match state'.state_init with
   | false ->
     state request
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 4167a96b..725d1f38 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -303,16 +303,6 @@ val pong : stream -> buffer -> int -> int -> write
     meaningful for WebSockets. *)
 end
 
-(* TODO Remove to server-side code. *)
-type multipart_state = {
-  mutable state_init : bool;
-  mutable name : string option;
-  mutable filename : string option;
-  mutable stream : (< > * Multipart_form.Header.t * string Lwt_stream.t) Lwt_stream.t;
-}
-
-val multipart_state : request -> multipart_state
-
 
 
 val no_middleware : middleware
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 6ca07b5d..5c1465bb 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -10,26 +10,6 @@ include Status
 
 
 
-(* Used for converting the stream interface of [multipart_form] into the pull
-   interface of Dream.
-
-   [state] permits to dissociate the initial state made by
-   [initial_multipart_state] and one which started to consume the body stream
-   (see the call of [Upload.upload]). *)
-type multipart_state = {
-  mutable state_init : bool;
-  mutable name : string option;
-  mutable filename : string option;
-  mutable stream : (< > * Multipart_form.Header.t * string Lwt_stream.t) Lwt_stream.t;
-}
-
-let initial_multipart_state () = {
-  state_init = true;
-  name = None;
-  filename = None;
-  stream = Lwt_stream.of_list [];
-}
-
 module Scope_variable_metadata =
 struct
   type 'a t = string option * ('a -> string) option
@@ -55,7 +35,6 @@ and client = {
   method_ : method_;
   target : string;
   request_version : int * int;
-  upload : multipart_state;
 }
 
 and server = {
@@ -184,24 +163,6 @@ let with_header name value message =
   |> drop_header name
   |> add_header name value
 
-(* TODO LATER Optimize by caching the parsed cookies in a local key. *)
-(* TODO LATER: API: Dream.cookie : string -> request -> string, cookie-option...
-   the thing with cookies is that they have a high likelihood of being absent. *)
-(* TODO LATER Can decide whether to accept multiple Cookie: headers based on
-   request version. But that would entail an actual middleware - is that worth
-   it? *)
-(* TODO LATER Also not efficient, at all. Need faster parser + the cache. *)
-(* TODO DOC Using only raw cookies. *)
-(* TODO However, is it best to URL-encode cookies by default, and provide a
-   variable for opting out? *)
-(* TODO DOC We allow multiple headers sent by the client, to support HTTP/2.
-   What is this about? *)
-let all_cookies request =
-  request
-  |> headers "Cookie"
-  |> List.map Formats.from_cookie
-  |> List.flatten
-
 (* TODO Don't use this exception-raising function, to avoid clobbering user
    backtraces more. *)
 (* let cookie_exn name request =
@@ -349,7 +310,6 @@ let request_from_http
       method_;
       target;
       request_version = version;
-      upload = initial_multipart_state ();
     };
     headers;
     client_stream = Stream.(stream no_reader no_writer);
@@ -385,7 +345,6 @@ let request
       method_;
       target;
       request_version = version;
-      upload = initial_multipart_state ();
     };
     headers;
     client_stream;
@@ -471,7 +430,3 @@ let rec pipeline middlewares handler =
 
 let sort_headers headers =
   List.stable_sort (fun (name, _) (name', _) -> compare name name') headers
-
-(* TODO Remove to server-side code. *)
-let multipart_state request =
-  request.specific.upload

From ba859abb23fb737d898715a991a6af01d59889ae Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 19:34:26 +0300
Subject: [PATCH 086/312] Move error types from dream-pure to server

---
 src/http/error_handler.ml  | 15 ++++++++-------
 src/http/error_handler.mli | 23 +++++++++++-----------
 src/http/http.ml           |  6 +++++-
 src/middleware/catch.ml    | 30 +++++++++++++++++++++++++++--
 src/middleware/log.ml      |  9 +++++++++
 src/pure/dream_pure.mli    | 33 --------------------------------
 src/pure/inmost.ml         | 39 --------------------------------------
 7 files changed, 62 insertions(+), 93 deletions(-)

diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 26d1cccd..24e81ae9 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -6,6 +6,7 @@
 
 
 module Dream = Dream_pure
+module Catch = Dream__middleware.Catch
 module Server = Dream__middleware.Server
 
 
@@ -26,7 +27,7 @@ let select_log = function
 
 
 
-let dump (error : Dream.error) =
+let dump (error : Catch.error) =
   let buffer = Buffer.create 4096 in
   let p format = Printf.bprintf buffer format in
 
@@ -110,7 +111,7 @@ let dump (error : Dream.error) =
 (* TODO LATER Some library is registering S-exp-based printers for expressions,
    which are calling functions that use exceptions during parsing, which are
    clobbering the backtrace. *)
-let customize template (error : Dream.error) =
+let customize template (error : Catch.error) =
 
   (* First, log the error. *)
 
@@ -306,7 +307,7 @@ let httpaf
   in
 
   let error = {
-    Dream.condition;
+    Catch.condition;
     layer = `HTTP;
     caused_by;
     request = None;
@@ -364,7 +365,7 @@ let h2
   in
 
   let error = {
-    Dream.condition;
+    Catch.condition;
     layer = `HTTP2;
     caused_by;
     request = None;
@@ -405,7 +406,7 @@ let tls
     user's_error_handler client_address error =
 
   let error = {
-    Dream.condition = `Exn error;
+    Catch.condition = `Exn error;
     layer = `TLS;
     caused_by = `Client;
     request = None;
@@ -436,7 +437,7 @@ let websocket
   let `Exn exn = error in
 
   let error = {
-    Dream.condition = `Exn exn;
+    Catch.condition = `Exn exn;
     layer = `WebSocket;
     caused_by = `Server;
     request = Some request;
@@ -458,7 +459,7 @@ let websocket_handshake
     fun request response error_string ->
 
   let error = {
-    Dream.condition = `String error_string;
+    Catch.condition = `String error_string;
     layer = `WebSocket;
     caused_by = `Client;
     request = Some request;
diff --git a/src/http/error_handler.mli b/src/http/error_handler.mli
index d25b71c6..97c7c201 100644
--- a/src/http/error_handler.mli
+++ b/src/http/error_handler.mli
@@ -6,17 +6,18 @@
 
 
 module Dream = Dream_pure
+module Catch = Dream__middleware.Catch
 
 
 
 (* User's error handlers and defaults. These actually generate error response
    templates and/or do logging. *)
 
-val default : Dream.error_handler
-val debug_error_handler : Dream.error_handler
+val default : Catch.error_handler
+val debug_error_handler : Catch.error_handler
 val customize :
-  (Dream.error -> string -> Dream.response -> Dream.response Lwt.t) ->
-    Dream.error_handler
+  (Catch.error -> string -> Dream.response -> Dream.response Lwt.t) ->
+    Catch.error_handler
 
 
 
@@ -32,29 +33,29 @@ val customize :
     Dream.middleware *)
 
 val app :
-  Dream.error_handler ->
-    (Dream.error -> Dream.response Lwt.t)
+  Catch.error_handler ->
+    (Catch.error -> Dream.response Lwt.t)
 
 val httpaf :
-  Dream.error_handler ->
+  Catch.error_handler ->
     (Unix.sockaddr -> Httpaf.Server_connection.error_handler)
 
 val h2 :
-  Dream.error_handler ->
+  Catch.error_handler ->
     (Unix.sockaddr -> H2.Server_connection.error_handler)
 
 val tls :
-  Dream.error_handler ->
+  Catch.error_handler ->
     (Unix.sockaddr -> exn -> unit)
 
 val websocket :
-  Dream.error_handler ->
+  Catch.error_handler ->
   Dream.request ->
   Dream.response ->
     (Websocketaf.Wsd.t -> [ `Exn of exn ] -> unit)
 
 val websocket_handshake :
-  Dream.error_handler ->
+  Catch.error_handler ->
     (Dream.request -> Dream.response -> string -> Dream.response Lwt.t)
 
 
diff --git a/src/http/http.ml b/src/http/http.ml
index 3a7e62d3..d87d2c11 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -5,7 +5,11 @@
 
 
 
-module Dream = Dream_pure
+module Dream =
+struct
+  include Dream_pure
+  include Dream__middleware.Catch
+end
 module Stream = Dream_pure.Stream
 module Server = Dream__middleware.Server
 
diff --git a/src/middleware/catch.ml b/src/middleware/catch.ml
index a6f59a03..00eae005 100644
--- a/src/middleware/catch.ml
+++ b/src/middleware/catch.ml
@@ -9,6 +9,32 @@ module Dream = Dream_pure
 
 
 
+type error = {
+  condition : [
+    | `Response of Dream.response
+    | `String of string
+    | `Exn of exn
+  ];
+  layer : [
+    | `App
+    | `HTTP
+    | `HTTP2
+    | `TLS
+    | `WebSocket
+  ];
+  caused_by : [
+    | `Server
+    | `Client
+  ];
+  request : Dream.request option;
+  response : Dream.response option;
+  client : string option;
+  severity : Log.log_level;
+  will_send_response : bool;
+}
+
+type error_handler = error -> Dream.response option Dream.promise
+
 (* This error handler actually *is* a middleware, but it is just one pathway for
    reaching the centralized error handler provided by the user, so it is built
    into the framework. *)
@@ -33,7 +59,7 @@ let catch error_handler next_handler request =
         in
 
         let error = {
-          Dream.condition = `Response response;
+          condition = `Response response;
           layer = `App;
           caused_by;
           request = Some request;
@@ -54,7 +80,7 @@ let catch error_handler next_handler request =
        severe protocol-level errors and integration mistakes. *)
     (fun exn ->
       let error = {
-        Dream.condition = `Exn exn;
+        condition = `Exn exn;
         layer = `App;
         caused_by = `Server;
         request = Some request;
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index 77651d25..2d43b181 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -31,6 +31,15 @@ module Dream = Dream_pure
 
 
 
+type log_level = [
+  | `Error
+  | `Warning
+  | `Info
+  | `Debug
+]
+
+
+
 (* The logging middleware assigns request ids to requests, and tries to show
    them in the logs. The scheme works as follows:
 
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 725d1f38..3e6b63c7 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -322,39 +322,6 @@ val is_websocket : response -> (websocket -> unit promise) option
 
 
 
-type log_level = [
-  | `Error
-  | `Warning
-  | `Info
-  | `Debug
-]
-
-type error = {
-  condition : [
-    | `Response of response
-    | `String of string
-    | `Exn of exn
-  ];
-  layer : [
-    | `App
-    | `HTTP
-    | `HTTP2
-    | `TLS
-    | `WebSocket
-  ];
-  caused_by : [
-    | `Server
-    | `Client
-  ];
-  request : request option;
-  response : response option;
-  client : string option;
-  severity : log_level;
-  will_send_response : bool;
-}
-
-type error_handler = error -> response option promise
-
 val request_from_http :
   method_:method_ ->
   target:string ->
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 5c1465bb..c1a00d6d 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -42,45 +42,6 @@ and server = {
   websocket : (websocket -> unit Lwt.t) option;
 }
 
-and error_handler = error -> response option Lwt.t
-
-and log_level = [
-  | `Error
-  | `Warning
-  | `Info
-  | `Debug
-]
-
-and error = {
-  condition : [
-    | `Response of response
-    | `String of string
-    | `Exn of exn
-  ];
-  layer : [
-    | `TLS
-    | `HTTP
-    | `HTTP2
-    | `WebSocket
-    | `App
-  ];
-  (* TODO Any point in distinguishing HTTP and HTTP2 errors? *)
-  caused_by : [
-    | `Server
-    | `Client
-  ];
-  request : request option;
-  response : response option;
-  client : string option;
-  severity : [
-    | `Error
-    | `Warning
-    | `Info
-    | `Debug
-  ];
-  will_send_response : bool;
-}
-
 type 'a promise = 'a Lwt.t
 
 type handler = request -> response Lwt.t

From 865217859faa59de5dd46b43af13646b8696df5c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Dec 2021 19:37:41 +0300
Subject: [PATCH 087/312] Cut request_from_http from dream-pure

This completes an initial version of the refactoring mentioned in #8.
---
 src/middleware/server.ml |  4 +++-
 src/pure/dream_pure.mli  | 10 ----------
 src/pure/inmost.ml       | 23 -----------------------
 3 files changed, 3 insertions(+), 34 deletions(-)

diff --git a/src/middleware/server.ml b/src/middleware/server.ml
index f99aa8ee..81ac76f1 100644
--- a/src/middleware/server.ml
+++ b/src/middleware/server.ml
@@ -46,7 +46,9 @@ let with_https https request =
 (* TODO Eventually remove Dream.request_from_http as all of its functionality
    is moved here. *)
 let request ~client ~method_ ~target ~https ~version ~headers server_stream =
-  Dream.request_from_http ~method_ ~target ~version ~headers server_stream
+  (* TODO Use pre-allocated streams. *)
+  let client_stream = Dream.Stream.(stream no_reader no_writer) in
+  Dream.request ~method_ ~target ~version ~headers client_stream server_stream
   |> with_client client
   |> with_https https
 
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 3e6b63c7..90ebd85d 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -322,16 +322,6 @@ val is_websocket : response -> (websocket -> unit promise) option
 
 
 
-val request_from_http :
-  method_:method_ ->
-  target:string ->
-  version:int * int ->
-  headers:(string * string) list ->
-  stream ->
-    request
-
-
-
 module Formats :
 sig
   val html_escape : string -> string
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index c1a00d6d..cb3968d7 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -259,29 +259,6 @@ let with_local key value message =
 let fold_locals f initial message =
   fold_scope f initial message.locals
 
-let request_from_http
-    ~method_
-    ~target
-    ~version
-    ~headers
-    body =
-
-  let rec request = {
-    specific = {
-      method_;
-      target;
-      request_version = version;
-    };
-    headers;
-    client_stream = Stream.(stream no_reader no_writer);
-    server_stream = body;
-    locals = Scope.empty;
-    first = request; (* TODO LATER What OCaml version is required for this? *)
-    last = ref request;
-  } in
-
-  request
-
 let request
     ?method_
     ?(target = "/")

From d7e81a28fe873814227f2619a3cf8d28243d9da4 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 16 Dec 2021 20:44:02 +0300
Subject: [PATCH 088/312] Convert to mutable requests and responses

Begin adopting a t-first style suitable for mutable objects.

Resolves #21.
---
 src/cipher/cipher.ml                    |  13 ++-
 src/dream.ml                            |  54 ++++++++++--
 src/dream.mli                           | 110 +++++++++++++++++++-----
 src/graphql/graphql.ml                  |   6 +-
 src/http/error_handler.ml               |  19 ++--
 src/http/http.ml                        |   3 +-
 src/middleware/content_length.ml        |   9 +-
 src/middleware/cookie.ml                |  13 ++-
 src/middleware/flash.ml                 |  19 ++--
 src/middleware/form.ml                  |   2 +-
 src/middleware/log.ml                   |  15 ++--
 src/middleware/lowercase_headers.ml     |  13 ++-
 src/middleware/origin_referrer_check.ml |   6 +-
 src/middleware/router.ml                |  36 ++++----
 src/middleware/router.mli               |   6 +-
 src/middleware/server.ml                |  37 ++++----
 src/middleware/session.ml               |  39 ++++-----
 src/middleware/site_prefix.ml           |   8 +-
 src/middleware/upload.ml                |   4 +-
 src/pure/dream_pure.mli                 |  32 ++++---
 src/pure/inmost.ml                      | 103 +++++++++-------------
 src/sql/session.ml                      |  23 +++--
 src/sql/sql.ml                          |   9 +-
 src/unix/static.ml                      |  28 +++---
 24 files changed, 336 insertions(+), 271 deletions(-)

diff --git a/src/cipher/cipher.ml b/src/cipher/cipher.ml
index 64cafcf5..9000d652 100644
--- a/src/cipher/cipher.ml
+++ b/src/cipher/cipher.ml
@@ -118,7 +118,7 @@ struct
         | Some plaintext -> Some (Cstruct.to_string plaintext)
 end
 
-let secrets =
+let secrets_variable =
   Dream.new_local
     ~name:"dream.secret"
     ~show_value:(fun _secrets -> "[redacted]")
@@ -128,23 +128,22 @@ let secrets =
 (* TODO Also add warnings about implicit secret generation. However, these
    warnings might be pretty spammy. *)
 (* TODO Update examples and docs. *)
-let with_secret ?(old_secrets = []) secret =
+let set_secret ?(old_secrets = []) secret =
   let value = secret::old_secrets in
   fun next_handler request ->
-    request
-    |> Dream.with_local secrets value
-    |> next_handler
+    Dream.set_local request secrets_variable value;
+    next_handler request
 
 let fallback_secrets =
   lazy [Random.random 32]
 
 let encryption_secret request =
-  match Dream.local secrets request with
+  match Dream.local request secrets_variable with
   | Some secrets -> List.hd secrets
   | None -> List.hd (Lazy.force fallback_secrets)
 
 let decryption_secrets request =
-  match Dream.local secrets request with
+  match Dream.local request secrets_variable with
   | Some secrets -> secrets
   | None -> Lazy.force fallback_secrets
 
diff --git a/src/dream.ml b/src/dream.ml
index 2515a5e4..1d42cf57 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -99,18 +99,16 @@ let redirect ?status ?code ?headers _request location =
   (* TODO The streams. *)
   let client_stream = stream empty no_writer
   and server_stream = stream no_reader no_writer in
-  response ?status ?code ?headers client_stream server_stream
-  |> with_header "Location" location
-  |> Lwt.return
+  let response = response ?status ?code ?headers client_stream server_stream in
+  set_header response "Location" location;
+  Lwt.return response
 
 let stream ?status ?code ?headers f =
   (* TODO Streams. *)
   let client_stream = stream empty no_writer
   and server_stream = stream no_reader no_writer in
-  let response =
-    response ?status ?code ?headers client_stream server_stream
-    |> with_stream
-  in
+  let response = response ?status ?code ?headers client_stream server_stream in
+  set_stream response;
   (* TODO Should set up an error handler for this. *)
   Lwt.async (fun () -> f response);
   Lwt.return response
@@ -132,8 +130,8 @@ let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
 
 let client =
   Dream__middleware.Server.client
-let with_client =
-  Dream__middleware.Server.with_client
+let set_client =
+  Dream__middleware.Server.set_client
 let https =
   Dream__middleware.Server.https
 let html =
@@ -154,3 +152,41 @@ let response ?status ?code ?headers body =
   let client_stream = Dream_pure.Stream.stream (string body) no_writer
   and server_stream = Dream_pure.Stream.stream no_reader no_writer in
   response ?status ?code ?headers client_stream server_stream
+
+let with_client client message =
+  set_client message client;
+  message
+
+let with_method_ method_ message =
+  set_method_ message method_;
+  message
+
+let with_version version message =
+  set_version message version;
+  message
+
+let with_path path message =
+  set_path message path;
+  message
+
+let with_header name value message =
+  set_header message name value;
+  message
+
+let with_body body message =
+  set_body message body;
+  message
+
+let with_stream message =
+  set_stream message;
+  message
+
+let with_local key value message =
+  set_local message key value;
+  message
+
+let first message =
+  message
+
+let last message =
+  message
diff --git a/src/dream.mli b/src/dream.mli
index 27301312..4c934e3e 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -364,29 +364,65 @@ val method_ : request -> method_
 (** Request method. For example, [`GET]. *)
 
 val target : request -> string
-(** Request target. For example, ["/foo/bar"]. See {!Dream.val-path}. *)
+(** Request target. For example, ["/foo/bar"]. *)
 
 (**/**)
 val prefix : request -> string
 (**/**)
 
+(**/**)
 val path : request -> string list
+[@@ocaml.deprecated
+" Router path access is being removed from the API. Comment at
+  https://github.com/aantron/dream/issues"]
 (** Parsed request path. For example, ["foo"; "bar"]. *)
+(**/**)
 
+(**/**)
 val version : request -> int * int
 (** Protocol version. [(1, 1)] for HTTP/1.1 and [(2, 0)] for HTTP/2. *)
+[@@ocaml.deprecated
+" Protocol version access is being removed from the API. Comment at
+  https://github.com/aantron/dream/issues"]
+(**/**)
 
-val with_client : string -> request -> request
+val set_client : request -> string -> unit
 (** Replaces the client. See {!Dream.val-client}. *)
 
-val with_method_ : [< method_ ] -> request -> request
+(**/**)
+val with_client : string -> request -> request
+[@@ocaml.deprecated
+" Use Dream.set_client. See
+  https://aantron.github.io/dream/#val-set_client"]
+(**/**)
+
+val set_method_ : request -> [< method_ ] -> unit
 (** Replaces the method. See {!Dream.type-method_}. *)
 
+(**/**)
+val with_method_ : [< method_ ] -> request -> request
+[@@ocaml.deprecated
+" Use Dream.set_method_. See
+  https://aantron.github.io/dream/#val-set_method_"]
+(**/**)
+
+(**/**)
 val with_path : string list -> request -> request
 (** Replaces the path. See {!Dream.val-path}. *)
+[@@ocaml.deprecated
+" Router path access is being removed from the API. Comment at
+  https://github.com/aantron/dream/issues"]
+(**/**)
 
+(**/**)
 val with_version : int * int -> request -> request
 (** Replaces the version. See {!Dream.version}. *)
+[@@ocaml.deprecated
+" Protocol version access is being removed from the API. Comment at
+  https://github.com/aantron/dream/issues"]
+(**/**)
+
+(* TODO Convert query string functions to the new t-first style. *)
 
 val query : string -> request -> string option
 (** First query parameter with the given name. See
@@ -477,7 +513,7 @@ val stream :
   ?code:int ->
   ?headers:(string * string) list ->
     (response -> unit promise) -> response promise
-(** Same as {!Dream.val-respond}, but calls {!Dream.with_stream} internally to
+(** Same as {!Dream.val-respond}, but calls {!Dream.set_stream} internally to
     prepare the response for stream writing, and then runs the callback
     asynchronously to do it. See example
     {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
@@ -497,30 +533,37 @@ val status : response -> status
 
 (** {1 Headers} *)
 
-val header : string -> 'a message -> string option
+val header : 'a message -> string -> string option
 (** First header with the given name. Header names are case-insensitive. See
     {{:https://tools.ietf.org/html/rfc7230#section-3.2} RFC 7230 §3.2} and
     {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers} MDN}. *)
 
-val headers : string -> 'a message -> string list
+val headers : 'a message -> string -> string list
 (** All headers with the given name. *)
 
 val all_headers : 'a message -> (string * string) list
 (** Entire header set as name-value list. *)
 
-val has_header : string -> 'a message -> bool
+val has_header : 'a message -> string -> bool
 (** Whether the message has a header with the given name. *)
 
-val add_header : string -> string -> 'a message -> 'a message
+val add_header : 'a message -> string -> string -> unit
 (** Appends a header with the given name and value. Does not remove any existing
     headers with the same name. *)
 
-val drop_header : string -> 'a message -> 'a message
+val drop_header : 'a message -> string -> unit
 (** Removes all headers with the given name. *)
 
-val with_header : string -> string -> 'a message -> 'a message
+val set_header : 'a message -> string -> string -> unit
 (** Equivalent to {!Dream.drop_header} followed by {!Dream.add_header}. *)
 
+(**/**)
+val with_header : string -> string -> 'a message -> 'a message
+[@@ocaml.deprecated
+" Use Dream.set_header. See
+  https://aantron.github.io/dream/#val-with_header"]
+(**/**)
+
 
 
 (** {1 Cookies}
@@ -558,7 +601,7 @@ val set_cookie :
   ?secure:bool ->
   ?http_only:bool ->
   ?same_site:[< `Strict | `Lax | `None ] option ->
-    string -> string -> request -> response -> response
+    response -> string -> string -> request -> unit
 (** Appends a [Set-Cookie:] header to the {!type-response}. Infers the most
     secure defaults from the {!type-request}.
 
@@ -642,7 +685,7 @@ val set_cookie :
    ?secure:bool ->
    ?http_only:bool ->
    ?same_site:[< `Strict | `Lax | `None ] option ->
-     string -> request -> response -> response
+     response -> string -> request -> unit
 (** Deletes the given cookie.
 
     This function works by calling {!Dream.set_cookie}, and setting the cookie
@@ -655,7 +698,7 @@ val cookie :
   ?domain:string ->
   ?path:string option ->
   ?secure:bool ->
-    string -> request -> string option
+    request -> string -> string option
 (** First cookie with the given name. See example
     {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
     [c-cookie]}.
@@ -681,9 +724,16 @@ val body : 'a message -> string promise
     {{:https://github.com/aantron/dream/tree/master/example/6-echo#files}
     [6-echo]}. *)
 
-val with_body : string -> response -> response
+val set_body : response -> string -> unit
 (** Replaces the body. *)
 
+(**/**)
+val with_body : string -> response -> response
+[@@ocaml.deprecated
+" Use Dream.set_body. See
+  https://aantron.github.io/dream/#val-set_body"]
+(**/**)
+
 (** {2 Streaming} *)
 
 val read : request -> string option promise
@@ -692,12 +742,19 @@ val read : request -> string option promise
     {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
     [j-stream]}. *)
 
-val with_stream : response -> response
+val set_stream : response -> unit
 (** Makes the {!type-response} ready for stream writing with {!Dream.write}. You
     should return it from your handler soon after — only one call to
     {!Dream.write} will be accepted before then. See {!Dream.stream} for a more
     convenient wrapper. *)
 
+(**/**)
+val with_stream : response -> response
+[@@ocaml.deprecated
+" Use Dream.set_stream instead. See
+  https://aantron.github.io/dream/#val-set_stream"]
+(**/**)
+
 val write : response -> string -> unit promise
 (** Streams out the string. The promise is fulfilled when the response can
     accept more writes. *)
@@ -733,7 +790,7 @@ val server_stream : 'a message -> stream
 val client_stream : 'a message -> stream
 (* TODO Document that this is for middlewares that are transforming a response
    stream or a WebSocket. *)
-val with_client_stream : stream -> 'a message -> 'a message
+val set_client_stream : 'a message -> stream -> unit
 (* TODO Normalize with with_stream, or add a separate with_server_stream. *)
 
 (* TODO Probably even close can be made optional. exn can be made optional. *)
@@ -1249,7 +1306,7 @@ val not_found : handler
 (** Always responds with [404 Not Found]. *)
 
 (* :((( *)
-val param : string -> request -> string
+val param : request -> string -> string
 (** Retrieves the path parameter. If it is missing, {!Dream.param} raises an
     exception — the program is buggy. *)
 
@@ -1453,7 +1510,7 @@ val flash_messages : middleware
 val flash : request -> (string * string) list
 (** The request's flash messages. *)
 
-val put_flash : string -> string -> request -> unit
+val put_flash : request -> string -> string -> unit
 (** Adds a flash message to the request. *)
 
 
@@ -2216,7 +2273,7 @@ val application_json : string
 
 (** {1 Cryptography} *)
 
-val with_secret : ?old_secrets:string list -> string -> middleware
+val set_secret : ?old_secrets:string list -> string -> middleware
 (** Sets a key to be used for cryptographic operations, such as signing CSRF
     tokens and encrypting cookies.
 
@@ -2300,12 +2357,19 @@ val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a local
     unset in each message. The optional [~name] and [~show_value] are used by
     {!Dream.run} [~debug] to show the variable in debug dumps. *)
 
-val local : 'a local -> 'b message -> 'a option
+val local : 'b message -> 'a local -> 'a option
 (** Retrieves the value of the per-message variable. *)
 
-val with_local : 'a local -> 'a -> 'b message -> 'b message
+val set_local : 'b message -> 'a local -> 'a -> unit
 (** Sets the per-message variable to the value. *)
 
+(**/**)
+val with_local : 'a local -> 'a -> 'b message -> 'b message
+[@@ocaml.deprecated
+" Use Dream.set_local instead. See
+  https://aantron.github.io/dream/#val-set_local"]
+(**/**)
+
 
 
 (** {1 Testing} *)
@@ -2329,17 +2393,21 @@ val test : ?prefix:string -> handler -> (request -> response)
     the test is not wrapped in a promise. If you don't need these facilities,
     you can test [handler] by calling it directly with a request. *)
 
+(**/**)
 val first : 'a message -> 'a message
+[@@ocaml.deprecated " Simply returns its own argument."]
 (** [Dream.first message] evaluates to the original request or response that
     [message] is immutably derived from. This is useful for getting the original
     state of requests especially, when they were first created inside the HTTP
     server ({!Dream.run}). *)
 
 val last : 'a message -> 'a message
+[@@ocaml.deprecated " Simply returns its own argument."]
 (** [Dream.last message] evaluates to the latest request or response that was
     derived from [message]. This is most useful for obtaining the state of
     requests at the time an exception was raised, without having to instrument
     the latest version of the request before the exception. *)
+(**/**)
 
 val sort_headers : (string * string) list -> (string * string) list
 (** Sorts headers by name. Headers with the same name are not sorted by value or
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index c5b0bf55..2cf3478d 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -274,8 +274,8 @@ let handle_over_websocket make_context schema subscriptions request websocket =
 let graphql make_context schema = fun request ->
   match Dream.method_ request with
   | `GET ->
-    let upgrade = Dream.header "Upgrade" request
-    and protocol = Dream.header "Sec-WebSocket-Protocol" request in
+    let upgrade = Dream.header request "Upgrade"
+    and protocol = Dream.header request "Sec-WebSocket-Protocol" in
     begin match upgrade, protocol with
     | Some "websocket", Some "graphql-transport-ws" ->
       Dream.websocket
@@ -291,7 +291,7 @@ let graphql make_context schema = fun request ->
     end
 
   | `POST ->
-    begin match Dream.header "Content-Type" request with
+    begin match Dream.header request "Content-Type" with
     | Some "application/json" ->
       let%lwt body = Dream.body request in
       (* TODO This almost certainly raises exceptions... *)
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 24e81ae9..d4275921 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -85,15 +85,13 @@ let dump (error : Catch.error) =
   begin match error.request with
   | None -> ()
   | Some request ->
-    let last = Dream.last request in
-
-    let major, minor = Dream.version last in
+    let major, minor = Dream.version request in
     p "\n\n%s %s HTTP/%i.%i"
-      (Dream.method_to_string (Dream.method_ last))
-      (Dream.target last)
+      (Dream.method_to_string (Dream.method_ request))
+      (Dream.target request)
       major minor;
 
-    Dream.all_headers last
+    Dream.all_headers request
     |> List.iter (fun (name, value) -> p "\n%s: %s" name value);
 
     Dream.fold_locals (fun name value first ->
@@ -192,11 +190,10 @@ let debug_template _error debug_dump response =
   let status = Dream.status response in
   let code = Dream.status_to_int status
   and reason = Dream.status_to_string status in
-  response
-  |> Dream.with_header "Content-Type" Dream_pure.Formats.text_html
-  |> Dream.with_body
-    (Dream__middleware.Error_template.render ~debug_dump ~code ~reason)
-  |> Lwt.return
+  Dream.set_header response "Content-Type" Dream_pure.Formats.text_html;
+  Dream.set_body response
+    (Dream__middleware.Error_template.render ~debug_dump ~code ~reason);
+  Lwt.return response
 
 let default =
   customize default_template
diff --git a/src/http/http.ml b/src/http/http.ml
index d87d2c11..bcc9770a 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -408,8 +408,7 @@ let wrap_handler
           let user's_websocket_handler websocket =
             Lwt.with_value
               Dream__middleware.Log.lwt_key
-              (Dream__middleware.Log.get_request_id
-                ~request:(Dream.last request) ())
+              (Dream__middleware.Log.get_request_id ~request ())
               (fun () -> user's_websocket_handler websocket)
           in
 
diff --git a/src/middleware/content_length.ml b/src/middleware/content_length.ml
index 20c8b87a..9b0571e7 100644
--- a/src/middleware/content_length.ml
+++ b/src/middleware/content_length.ml
@@ -19,9 +19,6 @@ let content_length next_handler request =
     next_handler request
   else
     let%lwt (response : Dream.response) = next_handler request in
-    if Dream.has_header "Transfer-Encoding" response then
-      Lwt.return response
-    else
-      response
-      |> Dream.add_header "Transfer-Encoding" "chunked"
-      |> Lwt.return
+    if not (Dream.has_header response "Transfer-Encoding") then
+      Dream.add_header response "Transfer-Encoding" "chunked";
+    Lwt.return response
diff --git a/src/middleware/cookie.ml b/src/middleware/cookie.ml
index 23248d3b..32202efa 100644
--- a/src/middleware/cookie.ml
+++ b/src/middleware/cookie.ml
@@ -24,8 +24,7 @@ module Cipher = Dream__cipher.Cipher
 (* TODO DOC We allow multiple headers sent by the client, to support HTTP/2.
    What is this about? *)
 let all_cookies request =
-  request
-  |> Dream.headers "Cookie"
+  Dream.headers request "Cookie"
   |> List.map Formats.from_cookie
   |> List.flatten
 
@@ -45,8 +44,8 @@ let cookie
     ?domain
     ?path
     ?secure
-    name
-    request =
+    request
+    name =
 
   let path =
     match path with
@@ -86,10 +85,10 @@ let set_cookie
     ?secure
     ?(http_only = true)
     ?same_site
+    response
     name
     value
-    request
-    response =
+    request =
 
   (* TODO Need the site prefix, not the subsite prefix! *)
   let path =
@@ -133,7 +132,7 @@ let set_cookie
       ?expires ?max_age ?domain ?path ~secure ~http_only ?same_site name value
   in
 
-  Dream.add_header "Set-Cookie" set_cookie response
+  Dream.add_header response "Set-Cookie" set_cookie
 
 let drop_cookie
     ?prefix ?domain ?path ?secure ?http_only ?same_site name request response =
diff --git a/src/middleware/flash.ml b/src/middleware/flash.ml
index 101de0e8..4cadf421 100644
--- a/src/middleware/flash.ml
+++ b/src/middleware/flash.ml
@@ -43,7 +43,7 @@ let flash request =
     | _ -> failwith "Bad flash message content"
   in
   let x =
-    Cookie.cookie flash_cookie request
+    Cookie.cookie request flash_cookie
     |>? fun value ->
     match Yojson.Basic.from_string value with
     | `List y -> Some (group @@ List.map unpack y)
@@ -51,9 +51,9 @@ let flash request =
   in
   Option.value x ~default:[]
 
-let put_flash category message request =
+let put_flash request category message =
   let outbox =
-    match Dream.local storage request with
+    match Dream.local request storage with
     | Some outbox -> outbox
     | None ->
       let message = "Missing flash message middleware" in
@@ -75,15 +75,15 @@ let flash_messages inner_handler request =
     else
       log ~request "%s" "No flash messages.");
   let outbox = ref [] in
-  let request = Dream.with_local storage outbox request in
-  let existing = Cookie.cookie flash_cookie request in
+  Dream.set_local request storage outbox;
+  let existing = Cookie.cookie request flash_cookie in
   let%lwt response = inner_handler request in
   let entries = List.rev !outbox in
-  let response =
+  let () =
     match existing, entries with
-    | None, [] -> response
+    | None, [] -> ()
     | Some _, [] ->
-      Cookie.set_cookie flash_cookie "" request response ~expires:0.
+      Cookie.set_cookie response flash_cookie "" request ~expires:0.
     | _, _ ->
       let content =
         List.fold_right (fun (x,y) a -> `String x :: `String y :: a) entries []
@@ -98,6 +98,7 @@ let flash_messages inner_handler request =
         else
           ()
       in
-      Cookie.set_cookie flash_cookie value request response ~max_age:five_minutes
+      Cookie.set_cookie
+        response flash_cookie value request ~max_age:five_minutes
   in
   Lwt.return response
diff --git a/src/middleware/form.ml b/src/middleware/form.ml
index 804fb7fc..6a054670 100644
--- a/src/middleware/form.ml
+++ b/src/middleware/form.ml
@@ -55,7 +55,7 @@ let sort_and_check_form ~now to_value form request =
     Lwt.return (`Many_tokens form)
 
 let form ?(csrf = true) ~now request =
-  match Dream.header "Content-Type" request with
+  match Dream.header request "Content-Type" with
   | Some "application/x-www-form-urlencoded" ->
     let%lwt body = Dream.body request in
     let form = Dream_pure.Formats.from_form_urlencoded body in
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index 2d43b181..c17bcd3c 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -84,7 +84,7 @@ let get_request_id ?request () =
   let request_id =
     match request with
     | None -> None
-    | Some request -> Dream.local id request
+    | Some request -> Dream.local request id
   in
   match request_id with
   | Some _ -> request_id
@@ -467,18 +467,19 @@ struct
     end;
 
     (* Get the requwst's id or assign a new one. *)
-    let request, id =
-      match Dream.local id request with
-      | Some id -> request, id
+    let id =
+      match Dream.local request id with
+      | Some id -> id
       | None ->
         last_id := !last_id + 1;
         let new_id = string_of_int !last_id in
-        Dream.with_local id new_id request, new_id
+        Dream.set_local request id new_id;
+        new_id
     in
 
     (* Identify the request in the log. *)
     let user_agent =
-      Dream.headers "User-Agent" request
+      Dream.headers request "User-Agent"
       |> String.concat " "
     in
 
@@ -499,7 +500,7 @@ struct
            target. *)
         let location =
           if Dream.is_redirection (Dream.status response) then
-            match Dream.header "Location" response with
+            match Dream.header response "Location" with
             | Some location -> " " ^ location
             | None -> ""
           else ""
diff --git a/src/middleware/lowercase_headers.ml b/src/middleware/lowercase_headers.ml
index 1a4cea4c..bfcaa1e7 100644
--- a/src/middleware/lowercase_headers.ml
+++ b/src/middleware/lowercase_headers.ml
@@ -15,12 +15,9 @@ module Dream = Dream_pure
 (* TODO This can be optimized not to convert a header if it is already
    lowercase. Another option is to use memoization to reduce GC pressure. *)
 let lowercase_headers inner_handler request =
-  if fst (Dream.version request) = 1 then
-    inner_handler request
-  else
-    let%lwt response = inner_handler request in
-    response
-    |> Dream.all_headers
+  let%lwt response = inner_handler request in
+  if fst (Dream.version request) <> 1 then
+    Dream.all_headers response
     |> List.map (fun (name, value) -> String.lowercase_ascii name, value)
-    |> fun headers -> Dream.with_all_headers headers response
-    |> Lwt.return
+    |> Dream.set_all_headers response;
+  Lwt.return response
diff --git a/src/middleware/origin_referrer_check.ml b/src/middleware/origin_referrer_check.ml
index b265877a..8a8f2bc1 100644
--- a/src/middleware/origin_referrer_check.ml
+++ b/src/middleware/origin_referrer_check.ml
@@ -21,8 +21,8 @@ let origin_referrer_check inner_handler request =
 
   | _ ->
     let origin =
-      match Dream.header "Origin" request with
-      | Some "null" | None -> Dream.header "Referer" request
+      match Dream.header request "Origin" with
+      | Some "null" | None -> Dream.header request "Referer"
       | Some _ as origin -> origin
     in
 
@@ -39,7 +39,7 @@ let origin_referrer_check inner_handler request =
     (* TODO Also recommend Uri to users. *)
     | Some origin ->
 
-      match Dream.header "Host" request with
+      match Dream.header request "Host" with
       | None ->
         log.warning (fun log -> log ~request "Host header missing");
         (* TODO Simplify. *)
diff --git a/src/middleware/router.ml b/src/middleware/router.ml
index f80a17ca..1d49fb91 100644
--- a/src/middleware/router.ml
+++ b/src/middleware/router.ml
@@ -173,14 +173,14 @@ let path_variable : string list Dream.local =
    string. *)
 (* TODO Remove this from the API. *)
 let path the_request =
-  match Dream.local path_variable the_request with
+  match Dream.local the_request path_variable with
   | Some path -> path
   | None ->
     Dream.(Formats.(the_request |> target |> split_target |> fst |> from_path))
 
 (* TODO Move site_prefix into this file and remove with_path from the API. *)
-let with_path path request =
-  Dream.with_local path_variable path request
+let set_path request path =
+  Dream.set_local request path_variable path
 
 (* Prefix is stored backwards. *)
 let prefix_variable : string list Dream.local =
@@ -190,15 +190,15 @@ let prefix_variable : string list Dream.local =
     ()
 
 let internal_prefix request =
-  match Dream.local prefix_variable request with
+  match Dream.local request prefix_variable with
   | Some prefix -> prefix
   | None -> []
 
 let prefix request =
   Dream.Formats.make_path (List.rev (internal_prefix request))
 
-let with_prefix prefix request =
-  Dream.with_local prefix_variable prefix request
+let set_prefix request prefix =
+  Dream.set_local request prefix_variable prefix
 
 let params_variable : (string * string) list Dream.local =
   Dream.new_local
@@ -214,17 +214,17 @@ let params_variable : (string * string) list Dream.local =
 let log =
   Log.sub_log "dream.router"
 
-let missing_param name request =
+let missing_param request name =
   let message = Printf.sprintf "Dream.param: missing path parameter %S" name in
   log.error (fun log -> log ~request "%s" message);
   failwith message
 
-let param name request =
-  match Dream.local params_variable request with
-  | None -> missing_param name request
+let param request name =
+  match Dream.local request params_variable with
+  | None -> missing_param request name
   | Some params ->
     try List.assoc name params
-    with _ -> missing_param name request
+    with _ -> missing_param request name
 
 let router routes =
   let routes = List.flatten routes in
@@ -259,12 +259,12 @@ let router routes =
       match node with
       | Handler (method_, handler)
           when method_matches method_ (Dream.method_ request) ->
-        let request = Dream.with_local params_variable bindings request in
-        if is_wildcard then
-          request
-          |> with_prefix prefix
-          |> with_path path
-          |> ok handler
+        Dream.set_local request params_variable bindings;
+        if is_wildcard then begin
+          set_prefix request prefix;
+          set_path request path;
+          ok handler request
+        end
         else
           if path = [] then
             ok handler request
@@ -277,7 +277,7 @@ let router routes =
     in
 
     let params =
-      match Dream.local params_variable request with
+      match Dream.local request params_variable with
       | Some params -> params
       | None -> []
     in
diff --git a/src/middleware/router.mli b/src/middleware/router.mli
index 7486979f..76e1305d 100644
--- a/src/middleware/router.mli
+++ b/src/middleware/router.mli
@@ -29,13 +29,13 @@ val scope : string -> Dream.middleware list -> route list -> route
    parameters, the middleware is the setter, and the retriever is, of course,
    the getter. *)
 val router : route list -> Dream.middleware
-val param : string -> Dream.request -> string
+val param : Dream.request -> string -> string
 
 (* Variables used by the router. *)
 val path : Dream.request -> string list
 val prefix : Dream.request -> string
-val with_path : string list -> Dream.request -> Dream.request
-val with_prefix : string list -> Dream.request -> Dream.request
+val set_path : Dream.request -> string list -> unit
+val set_prefix : Dream.request -> string list -> unit
 
 (**/**)
 
diff --git a/src/middleware/server.ml b/src/middleware/server.ml
index 81ac76f1..004253a4 100644
--- a/src/middleware/server.ml
+++ b/src/middleware/server.ml
@@ -18,12 +18,12 @@ let client_variable =
 (* TODO What should be reported when the client address is missing? This is a
    sign of local testing. *)
 let client request =
-  match Dream.local client_variable request with
+  match Dream.local request client_variable with
   | None -> "127.0.0.1:0"
   | Some client -> client
 
-let with_client client request =
-  Dream.with_local client_variable client request
+let set_client request client =
+  Dream.set_local request client_variable client
 
 
 
@@ -34,23 +34,24 @@ let https_variable =
     ()
 
 let https request =
-  match Dream.local https_variable request with
+  match Dream.local request https_variable with
   | Some true -> true
   | _ -> false
 
-let with_https https request =
-  Dream.with_local https_variable https request
+let set_https request https =
+  Dream.set_local request https_variable https
 
 
 
-(* TODO Eventually remove Dream.request_from_http as all of its functionality
-   is moved here. *)
 let request ~client ~method_ ~target ~https ~version ~headers server_stream =
   (* TODO Use pre-allocated streams. *)
   let client_stream = Dream.Stream.(stream no_reader no_writer) in
-  Dream.request ~method_ ~target ~version ~headers client_stream server_stream
-  |> with_client client
-  |> with_https https
+  let request =
+    Dream.request
+      ~method_ ~target ~version ~headers client_stream server_stream in
+  set_client request client;
+  set_https request https;
+  request
 
 
 
@@ -58,14 +59,16 @@ let html ?status ?code ?headers body =
   (* TODO The streams. *)
   let client_stream = Dream.Stream.(stream (string body) no_writer)
   and server_stream = Dream.Stream.(stream no_reader no_writer) in
-  Dream.response ?status ?code ?headers client_stream server_stream
-  |> Dream.with_header "Content-Type" Dream.Formats.text_html
-  |> Lwt.return
+  let response =
+    Dream.response ?status ?code ?headers client_stream server_stream in
+  Dream.set_header response "Content-Type" Dream.Formats.text_html;
+  Lwt.return response
 
 let json ?status ?code ?headers body =
   (* TODO The streams. *)
   let client_stream = Dream.Stream.(stream (string body) no_writer)
   and server_stream = Dream.Stream.(stream no_reader no_writer) in
-  Dream.response ?status ?code ?headers client_stream server_stream
-  |> Dream.with_header "Content-Type" Dream.Formats.application_json
-  |> Lwt.return
+  let response =
+    Dream.response ?status ?code ?headers client_stream server_stream in
+  Dream.set_header response "Content-Type" Dream.Formats.application_json;
+  Lwt.return response
diff --git a/src/middleware/session.ml b/src/middleware/session.ml
index 4e984b31..672e8b3a 100644
--- a/src/middleware/session.ml
+++ b/src/middleware/session.ml
@@ -20,19 +20,13 @@ type 'a back_end = {
 }
 
 let middleware local back_end = fun inner_handler request ->
-
-  let%lwt session =
-    back_end.load request in
-  let request =
-    Dream.with_local local session request in
-
-  let%lwt response =
-    inner_handler request in
-
+  let%lwt session = back_end.load request in
+  Dream.set_local request local session;
+  let%lwt response = inner_handler request in
   back_end.send session request response
 
 let getter local request =
-  match Dream.local local request with
+  match Dream.local request local with
   | Some session ->
     session
   | None ->
@@ -153,7 +147,7 @@ struct
     let now = gettimeofday () in
 
     let valid_session =
-      Cookie.cookie ~decrypt:false session_cookie request
+      Cookie.cookie ~decrypt:false request session_cookie
       |>? read_session_id
       |>? Hashtbl.find_opt hash_table
       |>? fun session ->
@@ -182,14 +176,14 @@ struct
     Lwt.return (operations ~now:gettimeofday hash_table lifetime session dirty, session)
 
   let send ~now (operations, session) request response =
-    if not operations.dirty then
-      Lwt.return response
-    else
+    if operations.dirty then
+    if not operations.dirty then begin
       let id = version_session_id !session.id in
       let max_age = !session.expires_at -. now () in
-      Lwt.return
-        (Cookie.set_cookie
-          session_cookie id request response ~encrypt:false ~max_age)
+      Cookie.set_cookie
+        response session_cookie id request ~encrypt:false ~max_age
+    end;
+    Lwt.return response
 
   let back_end ~now lifetime =
     let hash_table = Hashtbl.create 256 in
@@ -240,7 +234,7 @@ struct
     let now = gettimeofday () in
 
     let valid_session =
-      Cookie.cookie session_cookie request
+      Cookie.cookie request session_cookie
       |>? read_value
       |>? fun value ->
         (* TODO Is there a non-raising version of this? *)
@@ -294,9 +288,7 @@ struct
     Lwt.return (operations ~now:gettimeofday lifetime session dirty, session)
 
   let send ~now (operations, session) request response =
-    if not operations.dirty then
-      Lwt.return response
-    else
+    if operations.dirty then begin
       let max_age = !session.expires_at -. now () in
       let value =
         `Assoc [
@@ -309,8 +301,9 @@ struct
         |> Yojson.Basic.to_string
         |> version_value
       in
-      Lwt.return
-        (Cookie.set_cookie session_cookie value request response ~max_age)
+      Cookie.set_cookie response session_cookie value request ~max_age
+    end;
+    Lwt.return response
 
   let back_end ~now lifetime = {
     load = load ~now lifetime;
diff --git a/src/middleware/site_prefix.ml b/src/middleware/site_prefix.ml
index 469f0cd3..d3faf4d0 100644
--- a/src/middleware/site_prefix.ml
+++ b/src/middleware/site_prefix.ml
@@ -41,8 +41,6 @@ let with_site_prefix prefix =
     | Some path ->
       (* TODO This doesn't need to be recomputed on each request - can cache the
          result in the app. *)
-      let prefix_reversed = List.rev prefix in
-      request
-      |> Router.with_prefix prefix_reversed
-      |> Router.with_path path
-      |> next_handler
+      Router.set_prefix request (List.rev prefix);
+      Router.set_path request path;
+      next_handler request
diff --git a/src/middleware/upload.ml b/src/middleware/upload.ml
index c9427dac..1ee75250 100644
--- a/src/middleware/upload.ml
+++ b/src/middleware/upload.ml
@@ -96,7 +96,7 @@ and upload (request : Dream.request) =
     state request
 
   | true ->
-    let content_type = match Dream.header "content-type" request with
+    let content_type = match Dream.header request "Content-Type" with
     | Some content_type ->
       Result.to_option
         (Multipart_form.Content_type.of_string (content_type ^ "\r\n"))
@@ -125,7 +125,7 @@ type multipart_form =
 module Map = Map.Make (String)
 
 let multipart ?(csrf=true) ~now request =
-  let content_type = match Dream.header "content-type" request with
+  let content_type = match Dream.header request "Content-Type" with
     | Some content_type ->
       Result.to_option (Multipart_form.Content_type.of_string (content_type ^ "\r\n"))
     | None -> None in
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
index 90ebd85d..7c888bb6 100644
--- a/src/pure/dream_pure.mli
+++ b/src/pure/dream_pure.mli
@@ -144,8 +144,8 @@ val request :
 val method_ : request -> method_
 val target : request -> string
 val version : request -> int * int
-val with_method_ : [< method_ ] -> request -> request
-val with_version : int * int -> request -> request
+val set_method_ : request -> [< method_ ] -> unit
+val set_version : request -> int * int -> unit
 
 
 
@@ -161,21 +161,22 @@ val status : response -> status
 
 
 
-val header : string -> 'a message -> string option
-val headers : string -> 'a message -> string list
+val header : 'a message -> string -> string option
+val headers : 'a message -> string -> string list
 val all_headers : 'a message -> (string * string) list
-val has_header : string -> 'a message -> bool
-val add_header : string -> string -> 'a message -> 'a message
-val drop_header : string -> 'a message -> 'a message
-val with_header : string -> string -> 'a message -> 'a message
-val with_all_headers : (string * string) list -> 'a message -> 'a message
+val has_header : 'a message -> string -> bool
+val add_header : 'a message -> string -> string -> unit
+val drop_header : 'a message -> string -> unit
+val set_header : 'a message -> string -> string -> unit
+val set_all_headers : 'a message -> (string * string) list -> unit
 
 
 
 val body : 'a message -> string promise
-val with_body : string -> response -> response
+val set_body : response -> string -> unit
 val read : request -> string option promise
-val with_stream : 'a message -> 'a message
+val set_stream : 'a message -> unit
+(* TODO Rename set_stream, it makes kind of no sense now. *)
 val write : response -> string -> unit promise
 val flush : response -> unit promise
 val close_stream : response -> unit promise
@@ -183,7 +184,7 @@ val close_stream : response -> unit promise
    passed a request or a response. *)
 val client_stream : 'a message -> stream
 val server_stream : 'a message -> stream
-val with_client_stream : stream -> 'a message -> 'a message
+val set_client_stream : 'a message -> stream -> unit
 val next :
   stream ->
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
@@ -354,13 +355,10 @@ end
 
 type 'a local
 val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a local
-val local : 'a local -> 'b message -> 'a option
-val with_local : 'a local -> 'a -> 'b message -> 'b message
+val local : 'b message -> 'a local -> 'a option
+val set_local : 'b message -> 'a local -> 'a -> unit
 val fold_locals : (string -> string -> 'a -> 'a) -> 'a -> 'b message -> 'a
 
 
 
-(* TODO Delete once requests are mutable. *)
-val first : 'a message -> 'a message
-val last : 'a message -> 'a message
 val sort_headers : (string * string) list -> (string * string) list
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index cb3968d7..d436fcd4 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -15,6 +15,9 @@ struct
   type 'a t = string option * ('a -> string) option
 end
 module Scope = Hmap.Make (Scope_variable_metadata)
+(* TODO Rename Scope, because there is now only one scope. *)
+(* TODO Given there are now only locals, maybe it's worth renaming them to
+   something else - there is now only one concept of variables. *)
 
 type websocket = Stream.stream
 
@@ -23,19 +26,22 @@ and response = server message
 
 and 'a message = {
   specific : 'a;
-  headers : (string * string) list;
-  client_stream : Stream.stream;
-  server_stream : Stream.stream;
-  locals : Scope.t;
-  first : 'a message;
-  last : 'a message ref;
+  mutable headers : (string * string) list;
+  mutable client_stream : Stream.stream;
+  mutable server_stream : Stream.stream;
+  mutable locals : Scope.t;
 }
 
 and client = {
-  method_ : method_;
+  mutable method_ : method_;
   target : string;
-  request_version : int * int;
+  mutable request_version : int * int;
 }
+(* TODO Get rid of the version field completely? At least don't expose it in
+   Dream. It is only used internally on the server side to add the right
+   Content-Length, etc., headers. But even that can be moved out of the
+   middleware and into transport so that the version field is not necessary for
+   some middleware to decide which headers to add. *)
 
 and server = {
   status : status;
@@ -47,16 +53,6 @@ type 'a promise = 'a Lwt.t
 type handler = request -> response Lwt.t
 type middleware = handler -> handler
 
-let first message =
-  message.first
-
-let last message =
-  !(message.last)
-
-let update message =
-  message.last := message;
-  message
-
 let method_ request =
   request.specific.method_
 
@@ -66,13 +62,11 @@ let target request =
 let version request =
   request.specific.request_version
 
-let with_method_ method_ request =
-  update {request with
-    specific = {request.specific with method_ = (method_ :> method_)}}
+let set_method_ request method_ =
+  request.specific.method_ <- (method_ :> method_)
 
-let with_version version request =
-  update {request with
-    specific = {request.specific with request_version = version}}
+let set_version request version =
+  request.specific.request_version <- version
 
 let status response =
   response.specific.status
@@ -80,10 +74,10 @@ let status response =
 let all_headers message =
   message.headers
 
-let with_all_headers headers message =
-  update {message with headers}
+let set_all_headers message headers =
+  message.headers <- headers
 
-let headers name message =
+let headers message name =
   let name = String.lowercase_ascii name in
 
   message.headers
@@ -101,37 +95,27 @@ let header_basic name message =
   |> List.find (fun (name', _) -> String.lowercase_ascii name' = name)
   |> snd
 
-let header name message =
+let header message name =
   try Some (header_basic name message)
   with Not_found -> None
 
-let has_header name message =
+let has_header message name =
   try ignore (header_basic name message); true
   with Not_found -> false
 
-let add_header name value message =
-  update {message with headers = message.headers @ [(name, value)]}
+let add_header message name value =
+  message.headers <- message.headers @ [(name, value)]
 
 (* TODO Can optimize this if the header is not found? *)
-let drop_header name message =
+let drop_header message name =
   let name = String.lowercase_ascii name in
-  update {message with headers =
+  message.headers <-
     message.headers
-    |> List.filter (fun (name', _) -> String.lowercase_ascii name' <> name)}
-
-let with_header name value message =
-  message
-  |> drop_header name
-  |> add_header name value
-
-(* TODO Don't use this exception-raising function, to avoid clobbering user
-   backtraces more. *)
-(* let cookie_exn name request =
-  snd (all_cookies request |> List.find (fun (name', _) -> name' = name))
+    |> List.filter (fun (name', _) -> String.lowercase_ascii name' <> name)
 
-let cookie name request =
-  try Some (cookie_exn name request)
-  with Not_found -> None *)
+let set_header message name value =
+  drop_header message name;
+  add_header message name value
 
 (* TODO NOTE On the client, this will read the client stream until close. *)
 let body message =
@@ -146,8 +130,8 @@ let client_stream message =
 let server_stream message =
   message.server_stream
 
-let with_client_stream client_stream message =
-  update {message with client_stream}
+let set_client_stream message client_stream =
+  message.client_stream <- client_stream
 
 (* TODO Pending the dream.mli interface reorganization for the new stream
    API. *)
@@ -165,7 +149,7 @@ let next =
    middlewares that preprocess requests on the server and postprocess responses
    on the client. Or.... shouldn't this affect the client stream on the server,
    replacing its read end? *)
-let with_body body message =
+let set_body message body =
   (* TODO This is partially redundant with a length check in Stream.string, but
      that check is no longer useful as it prevents allocation of only a reader,
      rather than a complete stream. *)
@@ -176,15 +160,16 @@ let with_body body message =
     else
       Stream.(stream (string body) no_writer)
   in
-  update {message with server_stream = body}
+  message.server_stream <- body
 
 (* TODO The critical piece: the pipe should be split between the client and
    server streams. adapt.ml should be reading from the client stream. *)
-let with_stream message =
+let set_stream message =
   let reader, writer = Stream.pipe () in
   let client_stream = Stream.stream reader Stream.no_writer in
   let server_stream = Stream.stream Stream.no_reader writer in
-  update {message with client_stream; server_stream}
+  message.client_stream <- client_stream;
+  message.server_stream <- server_stream
 
 (* TODO Need to expose FIN. However, it can't have any effect even on
    WebSockets, because websocket/af does not offer the ability to pass FIN. It
@@ -250,11 +235,13 @@ type 'a local = 'a Scope.key
 let new_local ?name ?show_value () =
   Scope.Key.create (name, show_value)
 
-let local key message =
+(* TODO Tension between "t-first" and not, because typically, for a getter, the
+   "index" parameter could be partially applied. *)
+let local message key =
   Scope.find key message.locals
 
-let with_local key value message =
-  update {message with locals = Scope.add key value message.locals}
+let set_local message key value =
+  message.locals <- Scope.add key value message.locals
 
 let fold_locals f initial message =
   fold_scope f initial message.locals
@@ -288,8 +275,6 @@ let request
     client_stream;
     server_stream;
     locals = Scope.empty;
-    first = request;
-    last = ref request;
   } in
 
   request
@@ -314,8 +299,6 @@ let response
     server_stream;
     (* TODO This fully dead stream should be preallocated. *)
     locals = Scope.empty;
-    first = response;
-    last = ref response;
   } in
 
   response
diff --git a/src/sql/session.ml b/src/sql/session.ml
index 41791ff8..fd868afa 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -143,7 +143,7 @@ let load lifetime request =
     let now = Unix.gettimeofday () in
 
     let%lwt valid_session =
-      match Cookie.cookie ~decrypt:false Session.session_cookie request with
+      match Cookie.cookie request ~decrypt:false Session.session_cookie with
       | None -> Lwt.return_none
       | Some id ->
         match Session.read_session_id id with
@@ -180,19 +180,18 @@ let load lifetime request =
   end
 
 let send (operations, session) request response =
-  if not operations.Session.dirty then
-    Lwt.return response
-  else
+  if operations.Session.dirty then begin
     let id = Session.version_session_id !session.Session.id in
     let max_age = !session.Session.expires_at -. Unix.gettimeofday () in
-    Lwt.return
-      (Cookie.set_cookie
-        Session.session_cookie
-        id
-        request
-        response
-        ~encrypt:false
-        ~max_age)
+    Cookie.set_cookie
+      response
+      Session.session_cookie
+      id
+      request
+      ~encrypt:false
+      ~max_age
+  end;
+  Lwt.return response
 
 let back_end lifetime = {
   Session.load = load lifetime;
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index c1ec2d80..84435836 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -29,7 +29,9 @@ let sql_pool ?size uri =
     fun inner_handler request ->
 
   begin match !pool_cell with
-  | Some pool -> inner_handler (Dream.with_local pool_variable pool request)
+  | Some pool ->
+    Dream.set_local request pool_variable pool;
+    inner_handler request
   | None ->
     (* The correctness of this code is subtle. There is no race condition with
        two requests attempting to create a pool only because none of the code
@@ -44,7 +46,8 @@ let sql_pool ?size uri =
     match pool with
     | Ok pool ->
       pool_cell := Some pool;
-      inner_handler (Dream.with_local pool_variable pool request)
+      Dream.set_local request pool_variable pool;
+      inner_handler request
     | Error error ->
       (* Deliberately raise an exception so that it can be communicated to any
          debug handler. *)
@@ -56,7 +59,7 @@ let sql_pool ?size uri =
   end
 
 let sql request callback =
-  match Dream.local pool_variable request with
+  match Dream.local request pool_variable with
   | None ->
     let message = "Dream.sql: no pool; did you apply Dream.sql_pool?" in
     log.error (fun log -> log ~request "%s" message);
diff --git a/src/unix/static.ml b/src/unix/static.ml
index 3ce56849..42547362 100644
--- a/src/unix/static.ml
+++ b/src/unix/static.ml
@@ -92,22 +92,16 @@ let static ?(loader = from_filesystem) local_root = fun request ->
       |> Lwt.return
 
     | Some path ->
-
       let%lwt response = loader local_root path request in
-
-      let response =
-        if Dream.has_header "Content-Type" response then
-          response
-        else
-          match Dream.status response with
-          | `OK
-          | `Non_Authoritative_Information
-          | `No_Content
-          | `Reset_Content
-          | `Partial_Content ->
-            Dream.add_header "Content-Type" (Magic_mime.lookup path) response
-          | _ ->
-            response
-      in
-
+      if not (Dream.has_header response "Content-Type") then begin
+        match Dream.status response with
+        | `OK
+        | `Non_Authoritative_Information
+        | `No_Content
+        | `Reset_Content
+        | `Partial_Content ->
+          Dream.add_header response "Content-Type" (Magic_mime.lookup path)
+        | _ ->
+          ()
+      end;
       Lwt.return response

From 7aa5e7ba1cf3661e6e5d3824490ec8dfb778e559 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 16 Dec 2021 21:33:11 +0300
Subject: [PATCH 089/312] dream-pure no longer depends on multipart_form

The server and client will depend on multipart_form independently.
---
 dream-pure.opam | 1 -
 1 file changed, 1 deletion(-)

diff --git a/dream-pure.opam b/dream-pure.opam
index 13382927..11300971 100644
--- a/dream-pure.opam
+++ b/dream-pure.opam
@@ -17,7 +17,6 @@ depends: [
   "dune" {>= "2.7.0"}  # --instrument-with.
   "hmap"
   "lwt"
-  "multipart_form" {>= "0.3.0"}
   "ocaml" {>= "4.08.0"}
   "ptime" {>= "0.8.1"}  # Ptime.weekday.
   "uri" {>= "4.2.0"}

From 110575db83e5714ef19bab716ea0eafa49b3f5ef Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 16 Dec 2021 22:05:42 +0300
Subject: [PATCH 090/312] Factor out dream-httpaf

---
 Makefile          |  4 +--
 dream-httpaf.opam | 44 +++++++++++++++++++++++++++
 dream.opam        | 20 +------------
 src/http/dune     | 14 ++++-----
 src/vendor/dune   | 76 +++++++++++++++++++++++++----------------------
 5 files changed, 94 insertions(+), 64 deletions(-)
 create mode 100644 dream-httpaf.opam

diff --git a/Makefile b/Makefile
index 6fe09425..fe0f7ad4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,10 @@
 .PHONY : build
 build :
-	@dune build -p dream-pure,dream --no-print-directory @install
+	@dune build -p dream-pure,dream-httpaf,dream --no-print-directory @install
 
 .PHONY : watch
 watch :
-	@dune build -p dream-pure,dream --no-print-directory -w
+	@dune build -p dream-pure,dream-httpaf,dream --no-print-directory -w
 
 TEST ?= test
 
diff --git a/dream-httpaf.opam b/dream-httpaf.opam
new file mode 100644
index 00000000..c3ebf5a9
--- /dev/null
+++ b/dream-httpaf.opam
@@ -0,0 +1,44 @@
+opam-version: "2.0"
+
+synopsis: "Internal: shared http/af stack for Dream (server) and Hyper (client)"
+
+license: "MIT"
+homepage: "https://github.com/aantron/dream"
+doc: "https://aantron.github.io/dream"
+bug-reports: "https://github.com/aantron/dream/issues"
+dev-repo: "git+https://github.com/aantron/dream.git"
+
+author: "Anton Bachin <antonbachin@yahoo.com>"
+maintainer: "Anton Bachin <antonbachin@yahoo.com>"
+
+depends: [
+  "dune" {>= "2.7.0"}  # --instrument-with.
+  "lwt"
+  "lwt_ssl"
+  "ocaml" {>= "4.08.0"}
+  "ssl" {>= "0.5.8"}  # Ssl.get_negotiated_alpn_protocol.
+
+  # Currently vendored.
+  # "gluten"
+  # "gluten-lwt-unix"
+  # "httpaf"
+  # "httpaf-lwt-unix"
+  # "h2"
+  # "h2-lwt-unix"
+  # "hpack"
+  # "websocketaf"
+
+  # Dependencies of vendored packages.
+  "angstrom" {>= "0.14.0"}
+  "base64" {>= "3.0.0"}
+  "bigstringaf" {>= "0.5.0"}  # h2.
+  "digestif" {>= "0.7.2"}  # websocket/af, sha1, default implementation.
+  "faraday" {>= "0.6.1"}
+  "faraday-lwt-unix"
+  "psq"  # h2.
+  "result"  # http/af, websocket/af.
+]
+
+build: [
+  ["dune" "build" "-p" name "-j" jobs]
+]
diff --git a/dream.opam b/dream.opam
index 7d0bf5e9..f1d3f0f5 100644
--- a/dream.opam
+++ b/dream.opam
@@ -54,6 +54,7 @@ depends: [
   "conf-libev" {os != "win32"}
   "cstruct" {>= "6.0.0"}
   "dream-pure"
+  "dream-httpaf"
   "dune" {>= "2.7.0"}  # --instrument-with.
   "fmt" {>= "0.8.7"}  # `Italic.
   "graphql_parser"
@@ -73,25 +74,6 @@ depends: [
   "uri" {>= "4.2.0"}
   "yojson"  # ...
 
-  # Currently vendored.
-  # "gluten"
-  # "gluten-lwt-unix"
-  # "httpaf"
-  # "httpaf-lwt-unix"
-  # "h2"
-  # "h2-lwt-unix"
-  # "hpack"
-  # "websocketaf"
-
-  # Dependencies of vendored packages.
-  "angstrom" {>= "0.14.0"}
-  "bigstringaf" {>= "0.5.0"}  # h2.
-  "digestif" {>= "0.7.2"}  # websocket/af, sha1, default implementation.
-  "faraday" {>= "0.6.1"}
-  "faraday-lwt-unix"
-  "psq"  # h2.
-  "result"  # http/af, websocket/af.
-
   # Testing, development.
   "bisect_ppx" {with-test & >= "2.5.0"}  # --instrument-with.
   "caqti-driver-postgresql" {with-test}
diff --git a/src/http/dune b/src/http/dune
index f0ee185b..78693aca 100644
--- a/src/http/dune
+++ b/src/http/dune
@@ -9,17 +9,17 @@
   dream.localhost
   dream.middleware
   dream-pure
-  dream.gluten
-  dream.gluten-lwt-unix
-  dream.h2
-  dream.h2-lwt-unix
-  dream.httpaf
-  dream.httpaf-lwt-unix
+  dream-httpaf.gluten
+  dream-httpaf.gluten-lwt-unix
+  dream-httpaf.h2
+  dream-httpaf.h2-lwt-unix
+  dream-httpaf.httpaf
+  dream-httpaf.httpaf-lwt-unix
   lwt
   lwt.unix
   lwt_ssl
   ssl
-  dream.websocketaf
+  dream-httpaf.websocketaf
  )
  (preprocess (pps lwt_ppx))
  (instrumentation (backend bisect_ppx)))
diff --git a/src/vendor/dune b/src/vendor/dune
index 9bd5fba3..ac440a8b 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -1,5 +1,7 @@
 (data_only_dirs *)
 
+
+
 (subdir paf/lib
  (library
   (name paf)
@@ -12,7 +14,7 @@
   (name alpn)
   (public_name dream-mirage.paf.alpn)
   (modules alpn)
-  (libraries dream-mirage.paf dream.httpaf dream.h2)))
+  (libraries dream-mirage.paf dream-httpaf.httpaf dream-httpaf.h2)))
 
 (subdir paf/lib
  (library
@@ -27,13 +29,15 @@
   (wrapped false)
   (public_name dream-mirage.paf.le)
   (modules lE)
-  (libraries dream.httpaf dream-mirage.paf mirage-time mirage-stack duration tls-mirage emile
+  (libraries dream-httpaf.httpaf dream-mirage.paf mirage-time mirage-stack duration tls-mirage emile
     letsencrypt)))
 
+
+
 (subdir gluten/lib
  (library
   (name gluten)
-  (public_name dream.gluten)
+  (public_name dream-httpaf.gluten)
   (libraries
    bigstringaf
    faraday)))
@@ -41,18 +45,18 @@
 (subdir gluten/lwt
  (library
   (name gluten_lwt)
-  (public_name dream.gluten-lwt)
+  (public_name dream-httpaf.gluten-lwt)
   (libraries
-   dream.gluten
+   dream-httpaf.gluten
    lwt)))
 
 (subdir gluten/lwt-unix
  (library
   (name gluten_lwt_unix)
-  (public_name dream.gluten-lwt-unix)
+  (public_name dream-httpaf.gluten-lwt-unix)
   (libraries
    faraday-lwt-unix
-   dream.gluten-lwt
+   dream-httpaf.gluten-lwt
    lwt.unix
    (select
     ssl_io.ml
@@ -71,43 +75,43 @@
 (subdir websocketaf/lib
  (library
   (name websocketaf)
-  (public_name dream.websocketaf)
+  (public_name dream-httpaf.websocketaf)
   (libraries
    angstrom
    base64
    bigstringaf
    faraday
-   dream.gluten
+   dream-httpaf.gluten
    httpaf
    result)))
 
 (subdir websocketaf/lwt
  (library
   (name websocketaf_lwt)
-  (public_name dream.websocketaf-lwt)
+  (public_name dream-httpaf.websocketaf-lwt)
   (libraries
    base64
    digestif.ocaml
-   dream.gluten-lwt
+   dream-httpaf.gluten-lwt
    lwt
-   dream.websocketaf)))
+   dream-httpaf.websocketaf)))
 
 (subdir websocketaf/lwt-unix
  (library
   (name websocketaf_lwt_unix)
-  (public_name dream.websocketaf-lwt-unix)
+  (public_name dream-httpaf.websocketaf-lwt-unix)
   (libraries
    faraday-lwt-unix
-   dream.gluten-lwt-unix
+   dream-httpaf.gluten-lwt-unix
    lwt.unix
-   dream.websocketaf-lwt)))
+   dream-httpaf.websocketaf-lwt)))
 
 
 
 (subdir httpaf/lib
  (library
   (name httpaf)
-  (public_name dream.httpaf)
+  (public_name dream-httpaf.httpaf)
   (libraries
    angstrom
    bigstringaf
@@ -117,22 +121,22 @@
 (subdir httpaf/lwt
  (library
   (name httpaf_lwt)
-  (public_name dream.httpaf-lwt)
+  (public_name dream-httpaf.httpaf-lwt)
   (libraries
-   dream.gluten
-   dream.gluten-lwt
-   dream.httpaf
+   dream-httpaf.gluten
+   dream-httpaf.gluten-lwt
+   dream-httpaf.httpaf
    lwt)))
 
 (subdir httpaf/lwt-unix
  (library
   (name httpaf_lwt_unix)
-  (public_name dream.httpaf-lwt-unix)
+  (public_name dream-httpaf.httpaf-lwt-unix)
   (libraries
    faraday-lwt-unix
-   dream.gluten-lwt-unix
-   dream.httpaf
-   dream.httpaf-lwt
+   dream-httpaf.gluten-lwt-unix
+   dream-httpaf.httpaf
+   dream-httpaf.httpaf-lwt
    lwt.unix)))
 
 
@@ -146,7 +150,7 @@
 (subdir h2/hpack/src
  (library
   (name hpack)
-  (public_name dream.hpack)
+  (public_name dream-httpaf.hpack)
   (libraries
    angstrom
    faraday))
@@ -161,34 +165,34 @@
 (subdir h2/lib
  (library
   (name h2)
-  (public_name dream.h2)
+  (public_name dream-httpaf.h2)
   (libraries
    angstrom
    base64
    bigstringaf
    faraday
-   dream.hpack
-   dream.httpaf
+   dream-httpaf.hpack
+   dream-httpaf.httpaf
    psq
    result)))
 
 (subdir h2/lwt
  (library
   (name h2_lwt)
-  (public_name dream.h2-lwt)
+  (public_name dream-httpaf.h2-lwt)
   (libraries
-   dream.gluten
-   dream.gluten-lwt
+   dream-httpaf.gluten
+   dream-httpaf.gluten-lwt
    lwt
-   dream.h2)))
+   dream-httpaf.h2)))
 
 (subdir h2/lwt-unix
  (library
   (name h2_lwt_unix)
-  (public_name dream.h2-lwt-unix)
+  (public_name dream-httpaf.h2-lwt-unix)
   (libraries
    faraday-lwt-unix
-   dream.gluten-lwt-unix
-   dream.h2
-   dream.h2-lwt
+   dream-httpaf.gluten-lwt-unix
+   dream-httpaf.h2
+   dream-httpaf.h2-lwt
    lwt.unix)))

From 73c56ce1c4406e939a5fc5d2ef2f10d7675241c4 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 16 Dec 2021 22:10:08 +0300
Subject: [PATCH 091/312] Fix some warnings

---
 src/dream.mli            | 6 +++---
 src/middleware/upload.ml | 2 +-
 src/pure/inmost.ml       | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 4c934e3e..27748882 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -380,10 +380,10 @@ val path : request -> string list
 
 (**/**)
 val version : request -> int * int
-(** Protocol version. [(1, 1)] for HTTP/1.1 and [(2, 0)] for HTTP/2. *)
 [@@ocaml.deprecated
 " Protocol version access is being removed from the API. Comment at
   https://github.com/aantron/dream/issues"]
+(** Protocol version. [(1, 1)] for HTTP/1.1 and [(2, 0)] for HTTP/2. *)
 (**/**)
 
 val set_client : request -> string -> unit
@@ -408,18 +408,18 @@ val with_method_ : [< method_ ] -> request -> request
 
 (**/**)
 val with_path : string list -> request -> request
-(** Replaces the path. See {!Dream.val-path}. *)
 [@@ocaml.deprecated
 " Router path access is being removed from the API. Comment at
   https://github.com/aantron/dream/issues"]
+(** Replaces the path. See {!Dream.val-path}. *)
 (**/**)
 
 (**/**)
 val with_version : int * int -> request -> request
-(** Replaces the version. See {!Dream.version}. *)
 [@@ocaml.deprecated
 " Protocol version access is being removed from the API. Comment at
   https://github.com/aantron/dream/issues"]
+(** Replaces the version. See {!Dream.version}. *)
 (**/**)
 
 (* TODO Convert query string functions to the new t-first style. *)
diff --git a/src/middleware/upload.ml b/src/middleware/upload.ml
index 1ee75250..dfa723d6 100644
--- a/src/middleware/upload.ml
+++ b/src/middleware/upload.ml
@@ -37,7 +37,7 @@ let multipart_state_variable : multipart_state Dream.local =
 
 (* TODO This would be MUCH easier if requests were mutable. It's probably best
    to just break multipart until then, and have the branch be "unstable." *)
-let multipart_state request =
+let multipart_state _request =
   assert false
 
 let field_to_string (request : Dream.request) field =
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index d436fcd4..7b0bcadc 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -263,7 +263,7 @@ let request
   (* This function is used for debugging, so it's fine to allocate a fake body
      and then immediately replace it. *)
 
-  let rec request = {
+  let request = {
     specific = {
       (* TODO Is there a better fake error handler? Maybe this function should
          come after the response constructors? *)
@@ -289,7 +289,7 @@ let response
     | None, Some code -> int_to_status code
   in
 
-  let rec response = {
+  let response = {
     specific = {
       status;
       websocket = None;

From dd41df9e6502912db91ad60825a7af11c408a514 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 16 Dec 2021 22:46:50 +0300
Subject: [PATCH 092/312] Break up dream-pure.mli

---
 dream-httpaf.opam                       |   1 +
 dream-pure.opam                         |   1 +
 src/cipher/cipher.ml                    |   2 +-
 src/dream.ml                            |   7 +-
 src/graphql/graphql.ml                  |  18 +-
 src/http/adapt.ml                       |   2 +-
 src/http/error_handler.ml               |  33 ++-
 src/http/error_handler.mli              |   2 +-
 src/http/http.ml                        |  23 +-
 src/middleware/catch.ml                 |   8 +-
 src/middleware/content_length.ml        |   2 +-
 src/middleware/cookie.ml                |   4 +-
 src/middleware/echo.ml                  |   5 +-
 src/middleware/flash.ml                 |   2 +-
 src/middleware/form.ml                  |   2 +-
 src/middleware/log.ml                   |  14 +-
 src/middleware/lowercase_headers.ml     |   2 +-
 src/middleware/origin_referrer_check.ml |  15 +-
 src/middleware/query.ml                 |   7 +-
 src/middleware/router.ml                |   8 +-
 src/middleware/router.mli               |   2 +-
 src/middleware/server.ml                |  18 +-
 src/middleware/session.ml               |   2 +-
 src/middleware/site_prefix.ml           |  12 +-
 src/middleware/tag.eml.ml               |   5 +-
 src/middleware/upload.ml                |   2 +-
 src/pure/dream_pure.ml                  |  14 -
 src/pure/dream_pure.mli                 | 364 ------------------------
 src/pure/formats.mli                    |  36 +++
 src/pure/inmost.ml                      |   9 +-
 src/pure/inmost.mli                     | 118 ++++++++
 src/pure/stream.mli                     | 120 ++++++++
 src/sql/sql.ml                          |   2 +-
 src/unix/static.ml                      |  22 +-
 34 files changed, 402 insertions(+), 482 deletions(-)
 delete mode 100644 src/pure/dream_pure.ml
 delete mode 100644 src/pure/dream_pure.mli
 create mode 100644 src/pure/formats.mli
 create mode 100644 src/pure/inmost.mli
 create mode 100644 src/pure/stream.mli

diff --git a/dream-httpaf.opam b/dream-httpaf.opam
index c3ebf5a9..40c1509d 100644
--- a/dream-httpaf.opam
+++ b/dream-httpaf.opam
@@ -1,6 +1,7 @@
 opam-version: "2.0"
 
 synopsis: "Internal: shared http/af stack for Dream (server) and Hyper (client)"
+description: "This package does not have a stable API."
 
 license: "MIT"
 homepage: "https://github.com/aantron/dream"
diff --git a/dream-pure.opam b/dream-pure.opam
index 11300971..19c3b80c 100644
--- a/dream-pure.opam
+++ b/dream-pure.opam
@@ -1,6 +1,7 @@
 opam-version: "2.0"
 
 synopsis: "Internal: shared HTTP types for Dream (server) and Hyper (client)"
+description: "This package does not have a stable API."
 
 license: "MIT"
 homepage: "https://github.com/aantron/dream"
diff --git a/src/cipher/cipher.ml b/src/cipher/cipher.ml
index 9000d652..4d963bd8 100644
--- a/src/cipher/cipher.ml
+++ b/src/cipher/cipher.ml
@@ -13,7 +13,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/dream.ml b/src/dream.ml
index 1d42cf57..1cd455c7 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -5,8 +5,11 @@
 
 
 
+include Dream_pure.Status
 include Dream_pure.Stream
-include Dream_pure
+include Dream_pure.Method
+include Dream_pure.Inmost
+include Dream_pure.Formats
 
 include Dream__middleware.Log
 include Dream__middleware.Log.Make (Ptime_clock)
@@ -64,8 +67,6 @@ let () = Dream__cipher.Random.initialize Mirage_crypto_rng_lwt.initialize
 let random =
   Dream__cipher.Random.random
 
-include Dream_pure.Formats
-
 (* TODO Restore the ability to test with a prefix and re-enable the
    corresponding tests. *)
 let test ?(prefix = "") handler request =
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index 2cf3478d..fc776826 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -5,8 +5,10 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Method = Dream_pure.Method
 module Server = Dream__middleware.Server
+module Stream = Dream_pure.Stream
 
 
 
@@ -284,8 +286,8 @@ let graphql make_context schema = fun request ->
     | _ ->
       log.warning (fun log -> log ~request "Upgrade: websocket header missing");
       (* TODO Simplify stream creation. *)
-      let client_stream = Dream.Stream.(stream empty no_writer)
-      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      let client_stream = Stream.(stream empty no_writer)
+      and server_stream = Stream.(stream no_reader no_writer) in
       Dream.response ~status:`Not_Found client_stream server_stream
       |> Lwt.return
     end
@@ -315,17 +317,17 @@ let graphql make_context schema = fun request ->
     | _ ->
       log.warning (fun log -> log ~request
         "Content-Type not 'application/json'");
-      let client_stream = Dream.Stream.(stream empty no_writer)
-      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      let client_stream = Stream.(stream empty no_writer)
+      and server_stream = Stream.(stream no_reader no_writer) in
       Dream.response ~status:`Bad_Request client_stream server_stream
       |> Lwt.return
     end
 
   | method_ ->
     log.error (fun log -> log ~request
-      "Method %s; must be GET or POST" (Dream.method_to_string method_));
-    let client_stream = Dream.Stream.(stream empty no_writer)
-    and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      "Method %s; must be GET or POST" (Method.method_to_string method_));
+    let client_stream = Stream.(stream empty no_writer)
+    and server_stream = Stream.(stream no_reader no_writer) in
     Dream.response ~status:`Not_Found client_stream server_stream
     |> Lwt.return
 
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index fdb1f7a6..3613b379 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 module Stream = Dream_pure.Stream
 
 
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index d4275921..1ec3f2f5 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -5,9 +5,12 @@
 
 
 
-module Dream = Dream_pure
 module Catch = Dream__middleware.Catch
+module Dream = Dream_pure.Inmost
+module Method = Dream_pure.Method
 module Server = Dream__middleware.Server
+module Status = Dream_pure.Status
+module Stream = Dream_pure.Stream
 
 
 
@@ -34,7 +37,7 @@ let dump (error : Catch.error) =
   begin match error.condition with
   | `Response response ->
     let status = Dream.status response in
-    p "%i %s\n" (Dream.status_to_int status) (Dream.status_to_string status)
+    p "%i %s\n" (Status.status_to_int status) (Status.status_to_string status)
 
   | `String "" ->
     p "(Library error without description payload)\n"
@@ -87,7 +90,7 @@ let dump (error : Catch.error) =
   | Some request ->
     let major, minor = Dream.version request in
     p "\n\n%s %s HTTP/%i.%i"
-      (Dream.method_to_string (Dream.method_ request))
+      (Method.method_to_string (Dream.method_ request))
       (Dream.target request)
       major minor;
 
@@ -169,8 +172,8 @@ let customize template (error : Catch.error) =
           | `Client -> `Bad_Request
         in
         (* TODO Simplify the streams creation. *)
-        let client_stream = Dream.Stream.(stream empty no_writer)
-        and server_stream = Dream.Stream.(stream no_reader no_writer) in
+        let client_stream = Stream.(stream empty no_writer)
+        and server_stream = Stream.(stream no_reader no_writer) in
         Dream.response ~status client_stream server_stream
     in
 
@@ -188,8 +191,8 @@ let default_template _error _debug_dump response =
 
 let debug_template _error debug_dump response =
   let status = Dream.status response in
-  let code = Dream.status_to_int status
-  and reason = Dream.status_to_string status in
+  let code = Status.status_to_int status
+  and reason = Status.status_to_string status in
   Dream.set_header response "Content-Type" Dream_pure.Formats.text_html;
   Dream.set_body response
     (Dream__middleware.Error_template.render ~debug_dump ~code ~reason);
@@ -235,14 +238,14 @@ let respond_with_option f =
         | Some response -> response
         | None ->
           (* TODO Simplify streams. *)
-          let client_stream = Dream.Stream.(stream empty no_writer)
-          and server_stream = Dream.Stream.(stream no_reader no_writer) in
+          let client_stream = Stream.(stream empty no_writer)
+          and server_stream = Stream.(stream no_reader no_writer) in
           Dream.response
             ~status:`Internal_Server_Error client_stream server_stream))
     (fun () ->
       (* TODO Simplify streams. *)
-      let client_stream = Dream.Stream.(stream empty no_writer)
-      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      let client_stream = Stream.(stream empty no_writer)
+      and server_stream = Stream.(stream no_reader no_writer) in
       Dream.response
         ~status:`Internal_Server_Error client_stream server_stream
       |> Lwt.return)
@@ -268,12 +271,12 @@ let app
 (* TODO Simplify streams. *)
 let default_response = function
   | `Server ->
-    let client_stream = Dream.Stream.(stream empty no_writer)
-    and server_stream = Dream.Stream.(stream no_reader no_writer) in
+    let client_stream = Stream.(stream empty no_writer)
+    and server_stream = Stream.(stream no_reader no_writer) in
     Dream.response ~status:`Internal_Server_Error client_stream server_stream
   | `Client ->
-    let client_stream = Dream.Stream.(stream empty no_writer)
-    and server_stream = Dream.Stream.(stream no_reader no_writer) in
+    let client_stream = Stream.(stream empty no_writer)
+    and server_stream = Stream.(stream no_reader no_writer) in
     Dream.response ~status:`Bad_Request client_stream server_stream
 
 let httpaf
diff --git a/src/http/error_handler.mli b/src/http/error_handler.mli
index 97c7c201..6e1854f9 100644
--- a/src/http/error_handler.mli
+++ b/src/http/error_handler.mli
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 module Catch = Dream__middleware.Catch
 
 
diff --git a/src/http/http.ml b/src/http/http.ml
index bcc9770a..0a88e8b1 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -5,13 +5,12 @@
 
 
 
-module Dream =
-struct
-  include Dream_pure
-  include Dream__middleware.Catch
-end
-module Stream = Dream_pure.Stream
+module Catch = Dream__middleware.Catch
+module Dream = Dream_pure.Inmost
+module Method = Dream_pure.Method
 module Server = Dream__middleware.Server
+module Status = Dream_pure.Status
+module Stream = Dream_pure.Stream
 
 
 
@@ -20,13 +19,13 @@ module Server = Dream__middleware.Server
 
 
 let to_dream_method method_ =
-  Httpaf.Method.to_string method_ |> Dream.string_to_method
+  Httpaf.Method.to_string method_ |> Method.string_to_method
 
 let to_httpaf_status status =
-  Dream.status_to_int status |> Httpaf.Status.of_code
+  Status.status_to_int status |> Httpaf.Status.of_code
 
 let to_h2_status status =
-  Dream.status_to_int status |> H2.Status.of_code
+  Status.status_to_int status |> H2.Status.of_code
 
 let sha1 s =
   s
@@ -299,7 +298,7 @@ let websocket_handler user's_websocket_handler socket =
 (* TODO Rename conn like in the body branch. *)
 let wrap_handler
     https
-    (user's_error_handler : Dream.error_handler)
+    (user's_error_handler : Catch.error_handler)
     (user's_dream_handler : Dream.handler) =
 
   let httpaf_request_handler = fun client_address (conn : _ Gluten.Reqd.t) ->
@@ -448,7 +447,7 @@ let wrap_handler
 (* TODO Factor out what is in common between the http/af and h2 handlers. *)
 let wrap_handler_h2
     https
-    (_user's_error_handler : Dream.error_handler)
+    (_user's_error_handler : Catch.error_handler)
     (user's_dream_handler : Dream.handler) =
 
   let httpaf_request_handler = fun client_address (conn : H2.Reqd.t) ->
@@ -553,7 +552,7 @@ type tls_library = {
     certificate_file:string ->
     key_file:string ->
     handler:Dream.handler ->
-    error_handler:Dream.error_handler ->
+    error_handler:Catch.error_handler ->
       Unix.sockaddr ->
       Lwt_unix.file_descr ->
         unit Lwt.t;
diff --git a/src/middleware/catch.ml b/src/middleware/catch.ml
index 00eae005..7e29d8bc 100644
--- a/src/middleware/catch.ml
+++ b/src/middleware/catch.ml
@@ -5,7 +5,8 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Status = Dream_pure.Status
 
 
 
@@ -50,9 +51,10 @@ let catch error_handler next_handler request =
     (fun response ->
       let status = Dream.status response in
 
-      if Dream.is_client_error status || Dream.is_server_error status then begin
+      (* TODO Overfull hbox. *)
+      if Status.is_client_error status || Status.is_server_error status then begin
         let caused_by, severity =
-          if Dream.is_client_error status then
+          if Status.is_client_error status then
             `Client, `Warning
           else
             `Server, `Error
diff --git a/src/middleware/content_length.ml b/src/middleware/content_length.ml
index 9b0571e7..ba7a6338 100644
--- a/src/middleware/content_length.ml
+++ b/src/middleware/content_length.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/cookie.ml b/src/middleware/cookie.ml
index 32202efa..dfe24375 100644
--- a/src/middleware/cookie.ml
+++ b/src/middleware/cookie.ml
@@ -5,9 +5,9 @@
 
 
 
-module Formats = Dream_pure.Formats
-module Dream = Dream_pure
 module Cipher = Dream__cipher.Cipher
+module Dream = Dream_pure.Inmost
+module Formats = Dream_pure.Formats
 
 
 
diff --git a/src/middleware/echo.ml b/src/middleware/echo.ml
index 2bf28d82..2a9fb8b0 100644
--- a/src/middleware/echo.ml
+++ b/src/middleware/echo.ml
@@ -5,7 +5,8 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Stream = Dream_pure.Stream
 
 
 
@@ -14,6 +15,6 @@ let echo request =
   (* TODO Simplfy this code. Can in fact just pass the request's server stream
      as the response's client stream. *)
   let client_stream = Dream.server_stream request in
-  let server_stream = Dream.Stream.(stream no_reader no_writer) in
+  let server_stream = Stream.(stream no_reader no_writer) in
   Dream.response client_stream server_stream
   |> Lwt.return
diff --git a/src/middleware/flash.ml b/src/middleware/flash.ml
index 4cadf421..22d5e78e 100644
--- a/src/middleware/flash.ml
+++ b/src/middleware/flash.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/form.ml b/src/middleware/form.ml
index 6a054670..98871168 100644
--- a/src/middleware/form.ml
+++ b/src/middleware/form.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index c17bcd3c..e7290602 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -27,7 +27,9 @@
    This is sufficient for attaching a request id to most log messages, in
    practice. *)
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Method = Dream_pure.Method
+module Status = Dream_pure.Status
 
 
 
@@ -485,7 +487,7 @@ struct
 
     log.info (fun log ->
       log ~request "%s %s %s %s"
-        (Dream.method_to_string (Dream.method_ request))
+        (Method.method_to_string (Dream.method_ request))
         (Dream.target request)
         (Server.client request)
         user_agent);
@@ -499,7 +501,7 @@ struct
         (* Log the elapsed time. If the response is a redirection, log the
            target. *)
         let location =
-          if Dream.is_redirection (Dream.status response) then
+          if Status.is_redirection (Dream.status response) then
             match Dream.header response "Location" with
             | Some location -> " " ^ location
             | None -> ""
@@ -514,16 +516,16 @@ struct
             fun log ->
           let elapsed = now () -. start in
           log ~request "%i%s in %.0f μs"
-            (Dream.status_to_int status)
+            (Status.status_to_int status)
             location
             (elapsed *. 1e6)
         in
 
         begin
-          if Dream.is_server_error status then
+          if Status.is_server_error status then
             log.error report
           else
-            if Dream.is_client_error status then
+            if Status.is_client_error status then
               log.warning report
             else
               log.info report
diff --git a/src/middleware/lowercase_headers.ml b/src/middleware/lowercase_headers.ml
index bfcaa1e7..590f52bc 100644
--- a/src/middleware/lowercase_headers.ml
+++ b/src/middleware/lowercase_headers.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/origin_referrer_check.ml b/src/middleware/origin_referrer_check.ml
index 8a8f2bc1..9cccfe9f 100644
--- a/src/middleware/origin_referrer_check.ml
+++ b/src/middleware/origin_referrer_check.ml
@@ -5,7 +5,8 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Stream = Dream_pure.Stream
 
 
 
@@ -31,8 +32,8 @@ let origin_referrer_check inner_handler request =
       log.warning (fun log -> log ~request
         "Origin and Referer headers both missing");
       (* TODO Simplify. *)
-      let client_stream = Dream.Stream.(stream empty no_writer)
-      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      let client_stream = Stream.(stream empty no_writer)
+      and server_stream = Stream.(stream no_reader no_writer) in
       Dream.response ~status:`Bad_Request client_stream server_stream
       |> Lwt.return
 
@@ -43,8 +44,8 @@ let origin_referrer_check inner_handler request =
       | None ->
         log.warning (fun log -> log ~request "Host header missing");
         (* TODO Simplify. *)
-        let client_stream = Dream.Stream.(stream empty no_writer)
-        and server_stream = Dream.Stream.(stream no_reader no_writer) in
+        let client_stream = Stream.(stream empty no_writer)
+        and server_stream = Stream.(stream no_reader no_writer) in
         Dream.response ~status:`Bad_Request client_stream server_stream
         |> Lwt.return
 
@@ -81,8 +82,8 @@ let origin_referrer_check inner_handler request =
           log.warning (fun log -> log ~request
             "Origin-Host mismatch: '%s' vs. '%s'" origin host);
           (* TODO Simplify. *)
-          let client_stream = Dream.Stream.(stream empty no_writer)
-          and server_stream = Dream.Stream.(stream no_reader no_writer) in
+          let client_stream = Stream.(stream empty no_writer)
+          and server_stream = Stream.(stream no_reader no_writer) in
           Dream.response ~status:`Bad_Request client_stream server_stream
           |> Lwt.return
         end
diff --git a/src/middleware/query.ml b/src/middleware/query.ml
index 86e2a299..cba19087 100644
--- a/src/middleware/query.ml
+++ b/src/middleware/query.ml
@@ -8,7 +8,8 @@
 (* TODO Long-term, query string handler is likely to become part of the
    router. *)
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Formats = Dream_pure.Formats
 
 
 
@@ -23,9 +24,9 @@ module Dream = Dream_pure
 
 let all_queries request =
   Dream.target request
-  |> Dream.Formats.split_target
+  |> Formats.split_target
   |> snd
-  |> Dream.Formats.from_form_urlencoded
+  |> Formats.from_form_urlencoded
 
 let query name request =
   List.assoc_opt name (all_queries request)
diff --git a/src/middleware/router.ml b/src/middleware/router.ml
index 1d49fb91..e188716f 100644
--- a/src/middleware/router.ml
+++ b/src/middleware/router.ml
@@ -5,7 +5,9 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Formats = Dream_pure.Formats
+module Method = Dream_pure.Method
 
 
 
@@ -97,7 +99,7 @@ type method_set = [
 
 let method_matches method_set method_ =
   match method_set with
-  | #Dream.method_ as method' -> Dream.methods_equal method' method_
+  | #Method.method_ as method' -> Method.methods_equal method' method_
   | `Any -> true
 
 type node =
@@ -195,7 +197,7 @@ let internal_prefix request =
   | None -> []
 
 let prefix request =
-  Dream.Formats.make_path (List.rev (internal_prefix request))
+  Formats.make_path (List.rev (internal_prefix request))
 
 let set_prefix request prefix =
   Dream.set_local request prefix_variable prefix
diff --git a/src/middleware/router.mli b/src/middleware/router.mli
index 76e1305d..4d71e769 100644
--- a/src/middleware/router.mli
+++ b/src/middleware/router.mli
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 
 type route
 
diff --git a/src/middleware/server.ml b/src/middleware/server.ml
index 004253a4..df027256 100644
--- a/src/middleware/server.ml
+++ b/src/middleware/server.ml
@@ -5,7 +5,9 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Formats = Dream_pure.Formats
+module Stream = Dream_pure.Stream
 
 
 
@@ -45,7 +47,7 @@ let set_https request https =
 
 let request ~client ~method_ ~target ~https ~version ~headers server_stream =
   (* TODO Use pre-allocated streams. *)
-  let client_stream = Dream.Stream.(stream no_reader no_writer) in
+  let client_stream = Stream.(stream no_reader no_writer) in
   let request =
     Dream.request
       ~method_ ~target ~version ~headers client_stream server_stream in
@@ -57,18 +59,18 @@ let request ~client ~method_ ~target ~https ~version ~headers server_stream =
 
 let html ?status ?code ?headers body =
   (* TODO The streams. *)
-  let client_stream = Dream.Stream.(stream (string body) no_writer)
-  and server_stream = Dream.Stream.(stream no_reader no_writer) in
+  let client_stream = Stream.(stream (string body) no_writer)
+  and server_stream = Stream.(stream no_reader no_writer) in
   let response =
     Dream.response ?status ?code ?headers client_stream server_stream in
-  Dream.set_header response "Content-Type" Dream.Formats.text_html;
+  Dream.set_header response "Content-Type" Formats.text_html;
   Lwt.return response
 
 let json ?status ?code ?headers body =
   (* TODO The streams. *)
-  let client_stream = Dream.Stream.(stream (string body) no_writer)
-  and server_stream = Dream.Stream.(stream no_reader no_writer) in
+  let client_stream = Stream.(stream (string body) no_writer)
+  and server_stream = Stream.(stream no_reader no_writer) in
   let response =
     Dream.response ?status ?code ?headers client_stream server_stream in
-  Dream.set_header response "Content-Type" Dream.Formats.application_json;
+  Dream.set_header response "Content-Type" Formats.application_json;
   Lwt.return response
diff --git a/src/middleware/session.ml b/src/middleware/session.ml
index 672e8b3a..df09c3c2 100644
--- a/src/middleware/session.ml
+++ b/src/middleware/session.ml
@@ -7,7 +7,7 @@
 
 (* https://cheatsheetseries.owasp.org/cheatsheets/Session_Management_Cheat_Sheet.html *)
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/middleware/site_prefix.ml b/src/middleware/site_prefix.ml
index d3faf4d0..cb64e463 100644
--- a/src/middleware/site_prefix.ml
+++ b/src/middleware/site_prefix.ml
@@ -5,7 +5,9 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Formats = Dream_pure.Formats
+module Stream = Dream_pure.Stream
 
 
 
@@ -27,15 +29,15 @@ let rec match_site_prefix prefix path =
 let with_site_prefix prefix =
   let prefix =
     prefix
-    |> Dream_pure.Formats.from_path
-    |> Dream_pure.Formats.drop_trailing_slash
+    |> Formats.from_path
+    |> Formats.drop_trailing_slash
   in
   fun next_handler request ->
     match match_site_prefix prefix (Router.path request) with
     | None ->
       (* TODO Streams. *)
-      let client_stream = Dream.Stream.(stream empty no_writer)
-      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      let client_stream = Stream.(stream empty no_writer)
+      and server_stream = Stream.(stream no_reader no_writer) in
       Dream.response ~status:`Bad_Gateway client_stream server_stream
       |> Lwt.return
     | Some path ->
diff --git a/src/middleware/tag.eml.ml b/src/middleware/tag.eml.ml
index 237197fd..afb9589a 100644
--- a/src/middleware/tag.eml.ml
+++ b/src/middleware/tag.eml.ml
@@ -13,6 +13,7 @@ end
 (* This slightly awkward simulation of the overall Dream module using a
    composition of internal modules is necessary to get all the helpers at the
    right positions expected by the EML templater. *)
+module Method = Dream_pure.Method
 
 
 
@@ -22,8 +23,8 @@ let form_tag
 
   let method_ =
     match method_ with
-    | None -> Dream.method_to_string `POST
-    | Some method_ -> Dream.method_to_string method_
+    | None -> Method.method_to_string `POST
+    | Some method_ -> Method.method_to_string method_
   in
   let target =
     match target with
diff --git a/src/middleware/upload.ml b/src/middleware/upload.ml
index dfa723d6..15def736 100644
--- a/src/middleware/upload.ml
+++ b/src/middleware/upload.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/pure/dream_pure.ml b/src/pure/dream_pure.ml
deleted file mode 100644
index ed3ecab7..00000000
--- a/src/pure/dream_pure.ml
+++ /dev/null
@@ -1,14 +0,0 @@
-(* This file is part of Dream, released under the MIT license. See LICENSE.md
-   for details, or visit https://github.com/aantron/dream.
-
-   Copyright 2021 Anton Bachin *)
-
-
-
-module Formats = Formats
-
-module Stream = Stream
-type buffer = Stream.buffer
-type stream = Stream.stream
-
-include Inmost
diff --git a/src/pure/dream_pure.mli b/src/pure/dream_pure.mli
deleted file mode 100644
index 7c888bb6..00000000
--- a/src/pure/dream_pure.mli
+++ /dev/null
@@ -1,364 +0,0 @@
-(* This file is part of Dream, released under the MIT license. See LICENSE.md
-   for details, or visit https://github.com/aantron/dream.
-
-   Copyright 2021 Anton Bachin *)
-
-
-
-type 'a message
-
-type client
-type server
-
-type request = client message
-type response = server message
-
-type 'a promise = 'a Lwt.t
-type handler = request -> response promise
-type middleware = handler -> handler
-
-type buffer =
-  (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
-type stream
-
-
-
-type method_ = [
-  | `GET
-  | `POST
-  | `PUT
-  | `DELETE
-  | `HEAD
-  | `CONNECT
-  | `OPTIONS
-  | `TRACE
-  | `PATCH
-  | `Method of string
-]
-
-val method_to_string : [< method_ ] -> string
-val string_to_method : string -> method_
-val methods_equal : [< method_ ] -> [< method_ ] -> bool
-val normalize_method : [< method_ ] -> method_
-
-
-
-type informational = [
-  | `Continue
-  | `Switching_Protocols
-]
-
-type successful = [
-  | `OK
-  | `Created
-  | `Accepted
-  | `Non_Authoritative_Information
-  | `No_Content
-  | `Reset_Content
-  | `Partial_Content
-]
-
-type redirection = [
-  | `Multiple_Choices
-  | `Moved_Permanently
-  | `Found
-  | `See_Other
-  | `Not_Modified
-  | `Temporary_Redirect
-  | `Permanent_Redirect
-]
-
-type client_error = [
-  | `Bad_Request
-  | `Unauthorized
-  | `Payment_Required
-  | `Forbidden
-  | `Not_Found
-  | `Method_Not_Allowed
-  | `Not_Acceptable
-  | `Proxy_Authentication_Required
-  | `Request_Timeout
-  | `Conflict
-  | `Gone
-  | `Length_Required
-  | `Precondition_Failed
-  | `Payload_Too_Large
-  | `URI_Too_Long
-  | `Unsupported_Media_Type
-  | `Range_Not_Satisfiable
-  | `Expectation_Failed
-  | `Misdirected_Request
-  | `Too_Early
-  | `Upgrade_Required
-  | `Precondition_Required
-  | `Too_Many_Requests
-  | `Request_Header_Fields_Too_Large
-  | `Unavailable_For_Legal_Reasons
-]
-
-type server_error = [
-  | `Internal_Server_Error
-  | `Not_Implemented
-  | `Bad_Gateway
-  | `Service_Unavailable
-  | `Gateway_Timeout
-  | `HTTP_Version_Not_Supported
-]
-
-type standard_status = [
-  | informational
-  | successful
-  | redirection
-  | client_error
-  | server_error
-]
-
-type status = [
-  | standard_status
-  | `Status of int
-]
-
-val status_to_string : [< status ] -> string
-val status_to_reason : [< status ] -> string option
-val status_to_int : [< status ] -> int
-val int_to_status : int -> status
-val is_informational : [< status ] -> bool
-val is_successful : [< status ] -> bool
-val is_redirection : [< status ] -> bool
-val is_client_error : [< status ] -> bool
-val is_server_error : [< status ] -> bool
-val status_codes_equal : [< status ] -> [< status ] -> bool
-val normalize_status : [< status ] -> status
-
-
-
-val request :
-  ?method_:[< method_ ] ->
-  ?target:string ->
-  ?version:int * int ->
-  ?headers:(string * string) list ->
-  stream ->
-  stream ->
-    request
-
-val method_ : request -> method_
-val target : request -> string
-val version : request -> int * int
-val set_method_ : request -> [< method_ ] -> unit
-val set_version : request -> int * int -> unit
-
-
-
-val response :
-  ?status:[< status ] ->
-  ?code:int ->
-  ?headers:(string * string) list ->
-  stream ->
-  stream ->
-    response
-
-val status : response -> status
-
-
-
-val header : 'a message -> string -> string option
-val headers : 'a message -> string -> string list
-val all_headers : 'a message -> (string * string) list
-val has_header : 'a message -> string -> bool
-val add_header : 'a message -> string -> string -> unit
-val drop_header : 'a message -> string -> unit
-val set_header : 'a message -> string -> string -> unit
-val set_all_headers : 'a message -> (string * string) list -> unit
-
-
-
-val body : 'a message -> string promise
-val set_body : response -> string -> unit
-val read : request -> string option promise
-val set_stream : 'a message -> unit
-(* TODO Rename set_stream, it makes kind of no sense now. *)
-val write : response -> string -> unit promise
-val flush : response -> unit promise
-val close_stream : response -> unit promise
-(* TODO This will need to read different streams depending on whether it is
-   passed a request or a response. *)
-val client_stream : 'a message -> stream
-val server_stream : 'a message -> stream
-val set_client_stream : 'a message -> stream -> unit
-val next :
-  stream ->
-  data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(int -> unit) ->
-  flush:(unit -> unit) ->
-  ping:(buffer -> int -> int -> unit) ->
-  pong:(buffer -> int -> int -> unit) ->
-    unit
-val write_buffer :
-  ?offset:int -> ?length:int -> response -> buffer -> unit promise
-
-module Stream :
-sig
-type reader
-
-type writer
-
-type read =
-  data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(int -> unit) ->
-  flush:(unit -> unit) ->
-  ping:(buffer -> int -> int -> unit) ->
-  pong:(buffer -> int -> int -> unit) ->
-    unit
-(** A reading function. Awaits the next event on the stream. For each call of a
-    reading function, one of the callbacks will eventually be called, according
-    to which event occurs next on the stream. *)
-
-type write =
-  close:(int -> unit) ->
-  (unit -> unit) ->
-    unit
-(** A writing function. Pushes an event into a stream. May take additional
-    arguments before [~ok]. *)
-
-val reader : read:read -> close:(int -> unit) -> reader
-(** Creates a read-only stream from the given reader. [~close] is called in
-    response to {!Stream.close}. It doesn't need to call {!Stream.close} again
-    on the stream. It should be used to free any underlying resources. *)
-
-val empty : reader
-(** A read-only stream whose reading function always calls its [~close]
-    callback. *)
-
-val string : string -> reader
-(** A read-only stream which calls its [~data] callback once with the contents
-    of the given string, and then always calls [~close]. *)
-
-val pipe : unit -> reader * writer
-(** A stream which matches each call of the reading function to one call of its
-    writing functions. For example, calling {!Stream.flush} on a pipe will cause
-    the reader to call its [~flush] callback. *)
-
-val writer :
-  ready:write ->
-  write:(buffer -> int -> int -> bool -> bool -> write) ->
-  flush:write ->
-  ping:(buffer -> int -> int -> write) ->
-  pong:(buffer -> int -> int -> write) ->
-  close:(int -> unit) ->
-    writer
-
-val no_reader : reader
-
-val no_writer : writer
-
-val stream : reader -> writer -> stream
-(* TODO Consider tupling the arguments, as that will make it easier to pass the
-   result of Stream.pipe. *)
-
-val close : stream -> int -> unit
-(** Closes the given stream. Causes a pending reader or writer to call its
-    [~close] callback. *)
-
-val read : stream -> read
-(** Awaits the next stream event. See {!Stream.type-read}. *)
-
-val read_convenience : stream -> string option promise
-(** A wrapper around {!Stream.read} that converts [~data] with content [s] into
-    [Some s], and [~close] into [None], and uses them to resolve a promise.
-    [~flush] is ignored. *)
-
-val read_until_close : stream -> string promise
-(** Reads a stream completely until [~close], and accumulates the data into a
-    string. *)
-
-val ready : stream -> write
-
-val write : stream -> buffer -> int -> int -> bool -> bool -> write
-(** A writing function that sends a data buffer on the given stream. No more
-    writing functions should be called on the stream until this function calls
-    [~ok]. The [bool] arguments are whether the message is binary and whether
-    the [FIN] flag should be set. They are ignored by non-WebSocket streams.
-
-    Note: [FIN] is provided as part of the write call, rather than being a
-    separate stream event (like [flush]), because the WebSocket writer needs to
-    immediately know when the last chunk of the last frame in a message is
-    provided, to transmit the [FIN] bit. If [FIN] were to be provided as a
-    separate event, the WebSocket writer would have to buffer each one chunk, in
-    case the next stream event was [FIN], in order to be able to decide whether
-    to set the [FIN] bit or not. This is awkward and inefficient, as it
-    introduces an unnecessary delay into the writer, as if the next event is not
-    [FIN], the next data chunk might take an arbitrary amount of time to be
-    generated by the writing user code. *)
-
-val flush : stream -> write
-(** A writing function that asks for the given stream to be flushed. The meaning
-    of flushing depends on the implementation of the stream. No more writing
-    functions should be called on the stream until this function calls [~ok]. *)
-
-val ping : stream -> buffer -> int -> int -> write
-(** A writing function that sends a ping event on the given stream. This is only
-    meaningful for WebSockets. *)
-
-val pong : stream -> buffer -> int -> int -> write
-(** A writing function that sends a pong event on the given stream. This is only
-    meaningful for WebSockets. *)
-end
-
-
-
-val no_middleware : middleware
-val pipeline : middleware list -> middleware
-
-
-
-type websocket = stream
-val websocket :
-  ?headers:(string * string) list ->
-  (websocket -> unit promise) ->
-    response promise
-val send : ?kind:[< `Text | `Binary ] -> websocket -> string -> unit promise
-val receive : websocket -> string option promise
-val close_websocket : ?code:int -> websocket -> unit promise
-val is_websocket : response -> (websocket -> unit promise) option
-
-
-
-module Formats :
-sig
-  val html_escape : string -> string
-  val to_base64url : string -> string
-  val from_base64url : string -> string option
-  val to_percent_encoded : ?international:bool -> string -> string
-  val from_percent_encoded : string -> string
-  val to_form_urlencoded : (string * string) list -> string
-  val from_form_urlencoded : string -> (string * string) list
-  val from_cookie : string -> (string * string) list
-  val to_set_cookie :
-    ?expires:float ->
-    ?max_age:float ->
-    ?domain:string ->
-    ?path:string ->
-    ?secure:bool ->
-    ?http_only:bool ->
-    ?same_site:[ `Strict | `Lax | `None ] ->
-      string -> string -> string
-  val split_target : string -> string * string
-  val from_path : string -> string list
-  val to_path : ?relative:bool -> ?international:bool -> string list -> string
-  val drop_trailing_slash : string list -> string list
-  val make_path : string list -> string
-  val text_html : string
-  val application_json : string
-end
-
-
-
-type 'a local
-val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a local
-val local : 'b message -> 'a local -> 'a option
-val set_local : 'b message -> 'a local -> 'a -> unit
-val fold_locals : (string -> string -> 'a -> 'a) -> 'a -> 'b message -> 'a
-
-
-
-val sort_headers : (string * string) list -> (string * string) list
diff --git a/src/pure/formats.mli b/src/pure/formats.mli
new file mode 100644
index 00000000..e7f74869
--- /dev/null
+++ b/src/pure/formats.mli
@@ -0,0 +1,36 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+(* Note: this is not a stable API! *)
+
+
+
+val html_escape : string -> string
+val to_base64url : string -> string
+val from_base64url : string -> string option
+val to_percent_encoded : ?international:bool -> string -> string
+val from_percent_encoded : string -> string
+val to_form_urlencoded : (string * string) list -> string
+val from_form_urlencoded : string -> (string * string) list
+val from_cookie : string -> (string * string) list
+val split_target : string -> string * string
+val from_path : string -> string list
+val to_path : ?relative:bool -> ?international:bool -> string list -> string
+val drop_trailing_slash : string list -> string list
+val make_path : string list -> string
+val text_html : string
+val application_json : string
+
+val to_set_cookie :
+  ?expires:float ->
+  ?max_age:float ->
+  ?domain:string ->
+  ?path:string ->
+  ?secure:bool ->
+  ?http_only:bool ->
+  ?same_site:[ `Strict | `Lax | `None ] ->
+    string -> string -> string
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 7b0bcadc..d54aa98c 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -5,10 +5,11 @@
 
 
 
-include Method
-include Status
-
+type method_ = Method.method_
+type status = Status.status
 
+type stream = Stream.stream
+type buffer = Stream.buffer
 
 module Scope_variable_metadata =
 struct
@@ -286,7 +287,7 @@ let response
     match status, code with
     | None, None -> `OK
     | Some status, _ -> (status :> status)
-    | None, Some code -> int_to_status code
+    | None, Some code -> Status.int_to_status code
   in
 
   let response = {
diff --git a/src/pure/inmost.mli b/src/pure/inmost.mli
new file mode 100644
index 00000000..56cae5f3
--- /dev/null
+++ b/src/pure/inmost.mli
@@ -0,0 +1,118 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+(* Note: this is not a stable API! *)
+
+
+
+type client
+type server
+type 'a message
+type request = client message
+type response = server message
+
+type 'a promise = 'a Lwt.t
+type handler = request -> response promise
+type middleware = handler -> handler
+
+type method_ = Method.method_
+type status = Status.status
+
+type stream = Stream.stream
+type buffer = Stream.buffer
+
+
+
+val request :
+  ?method_:[< method_ ] ->
+  ?target:string ->
+  ?version:int * int ->
+  ?headers:(string * string) list ->
+  stream ->
+  stream ->
+    request
+
+val method_ : request -> method_
+val target : request -> string
+val version : request -> int * int
+val set_method_ : request -> [< method_ ] -> unit
+val set_version : request -> int * int -> unit
+
+
+
+val response :
+  ?status:[< status ] ->
+  ?code:int ->
+  ?headers:(string * string) list ->
+  stream ->
+  stream ->
+    response
+
+val status : response -> status
+
+
+
+val header : 'a message -> string -> string option
+val headers : 'a message -> string -> string list
+val all_headers : 'a message -> (string * string) list
+val has_header : 'a message -> string -> bool
+val add_header : 'a message -> string -> string -> unit
+val drop_header : 'a message -> string -> unit
+val set_header : 'a message -> string -> string -> unit
+val set_all_headers : 'a message -> (string * string) list -> unit
+val sort_headers : (string * string) list -> (string * string) list
+
+
+
+val body : 'a message -> string promise
+val set_body : response -> string -> unit
+val read : request -> string option promise
+val set_stream : 'a message -> unit
+(* TODO Rename set_stream, it makes kind of no sense now. *)
+val write : response -> string -> unit promise
+val flush : response -> unit promise
+val close_stream : response -> unit promise
+(* TODO This will need to read different streams depending on whether it is
+   passed a request or a response. *)
+val client_stream : 'a message -> stream
+val server_stream : 'a message -> stream
+val set_client_stream : 'a message -> stream -> unit
+val next :
+  stream ->
+  data:(buffer -> int -> int -> bool -> bool -> unit) ->
+  close:(int -> unit) ->
+  flush:(unit -> unit) ->
+  ping:(buffer -> int -> int -> unit) ->
+  pong:(buffer -> int -> int -> unit) ->
+    unit
+val write_buffer :
+  ?offset:int -> ?length:int -> response -> buffer -> unit promise
+
+
+
+val no_middleware : middleware
+val pipeline : middleware list -> middleware
+
+
+
+type websocket = stream
+val websocket :
+  ?headers:(string * string) list ->
+  (websocket -> unit promise) ->
+    response promise
+val send : ?kind:[< `Text | `Binary ] -> websocket -> string -> unit promise
+val receive : websocket -> string option promise
+val close_websocket : ?code:int -> websocket -> unit promise
+val is_websocket : response -> (websocket -> unit promise) option
+
+
+
+type 'a local
+val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a local
+val local : 'b message -> 'a local -> 'a option
+val set_local : 'b message -> 'a local -> 'a -> unit
+val fold_locals : (string -> string -> 'a -> 'a) -> 'a -> 'b message -> 'a
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
new file mode 100644
index 00000000..a525f9dc
--- /dev/null
+++ b/src/pure/stream.mli
@@ -0,0 +1,120 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021 Anton Bachin *)
+
+
+
+(* Note: this is not a stable API! *)
+
+
+
+type reader
+type writer
+type stream
+
+type buffer =
+  (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+type 'a promise =
+  'a Lwt.t
+
+type read =
+  data:(buffer -> int -> int -> bool -> bool -> unit) ->
+  close:(int -> unit) ->
+  flush:(unit -> unit) ->
+  ping:(buffer -> int -> int -> unit) ->
+  pong:(buffer -> int -> int -> unit) ->
+    unit
+(** A reading function. Awaits the next event on the stream. For each call of a
+    reading function, one of the callbacks will eventually be called, according
+    to which event occurs next on the stream. *)
+
+type write =
+  close:(int -> unit) ->
+  (unit -> unit) ->
+    unit
+(** A writing function. Pushes an event into a stream. May take additional
+    arguments before [~ok]. *)
+
+val reader : read:read -> close:(int -> unit) -> reader
+(** Creates a read-only stream from the given reader. [~close] is called in
+    response to {!Stream.close}. It doesn't need to call {!Stream.close} again
+    on the stream. It should be used to free any underlying resources. *)
+
+val empty : reader
+(** A read-only stream whose reading function always calls its [~close]
+    callback. *)
+
+val string : string -> reader
+(** A read-only stream which calls its [~data] callback once with the contents
+    of the given string, and then always calls [~close]. *)
+
+val pipe : unit -> reader * writer
+(** A stream which matches each call of the reading function to one call of its
+    writing functions. For example, calling {!Stream.flush} on a pipe will cause
+    the reader to call its [~flush] callback. *)
+
+val writer :
+  ready:write ->
+  write:(buffer -> int -> int -> bool -> bool -> write) ->
+  flush:write ->
+  ping:(buffer -> int -> int -> write) ->
+  pong:(buffer -> int -> int -> write) ->
+  close:(int -> unit) ->
+    writer
+
+val no_reader : reader
+
+val no_writer : writer
+
+val stream : reader -> writer -> stream
+(* TODO Consider tupling the arguments, as that will make it easier to pass the
+   result of Stream.pipe. *)
+
+val close : stream -> int -> unit
+(** Closes the given stream. Causes a pending reader or writer to call its
+    [~close] callback. *)
+
+val read : stream -> read
+(** Awaits the next stream event. See {!Stream.type-read}. *)
+
+val read_convenience : stream -> string option promise
+(** A wrapper around {!Stream.read} that converts [~data] with content [s] into
+    [Some s], and [~close] into [None], and uses them to resolve a promise.
+    [~flush] is ignored. *)
+
+val read_until_close : stream -> string promise
+(** Reads a stream completely until [~close], and accumulates the data into a
+    string. *)
+
+val ready : stream -> write
+
+val write : stream -> buffer -> int -> int -> bool -> bool -> write
+(** A writing function that sends a data buffer on the given stream. No more
+    writing functions should be called on the stream until this function calls
+    [~ok]. The [bool] arguments are whether the message is binary and whether
+    the [FIN] flag should be set. They are ignored by non-WebSocket streams.
+
+    Note: [FIN] is provided as part of the write call, rather than being a
+    separate stream event (like [flush]), because the WebSocket writer needs to
+    immediately know when the last chunk of the last frame in a message is
+    provided, to transmit the [FIN] bit. If [FIN] were to be provided as a
+    separate event, the WebSocket writer would have to buffer each one chunk, in
+    case the next stream event was [FIN], in order to be able to decide whether
+    to set the [FIN] bit or not. This is awkward and inefficient, as it
+    introduces an unnecessary delay into the writer, as if the next event is not
+    [FIN], the next data chunk might take an arbitrary amount of time to be
+    generated by the writing user code. *)
+
+val flush : stream -> write
+(** A writing function that asks for the given stream to be flushed. The meaning
+    of flushing depends on the implementation of the stream. No more writing
+    functions should be called on the stream until this function calls [~ok]. *)
+
+val ping : stream -> buffer -> int -> int -> write
+(** A writing function that sends a ping event on the given stream. This is only
+    meaningful for WebSockets. *)
+
+val pong : stream -> buffer -> int -> int -> write
+(** A writing function that sends a pong event on the given stream. This is only
+    meaningful for WebSockets. *)
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index 84435836..69a667ad 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
 
 
 
diff --git a/src/unix/static.ml b/src/unix/static.ml
index 42547362..0c89e21f 100644
--- a/src/unix/static.ml
+++ b/src/unix/static.ml
@@ -5,7 +5,9 @@
 
 
 
-module Dream = Dream_pure
+module Dream = Dream_pure.Inmost
+module Method = Dream_pure.Method
+module Stream = Dream_pure.Stream
 
 
 
@@ -29,14 +31,14 @@ let from_filesystem local_root path _ =
       Lwt_io.(with_file ~mode:Input file) (fun channel ->
         let%lwt content = Lwt_io.read channel in
         (* TODO Can use some pre-allocated streams or helpers here and below. *)
-        let client_stream = Dream.Stream.(stream (string content) no_writer)
-        and server_stream = Dream.Stream.(stream no_reader no_writer) in
+        let client_stream = Stream.(stream (string content) no_writer)
+        and server_stream = Stream.(stream no_reader no_writer) in
         Dream.response ~headers:(mime_lookup path) client_stream server_stream
         |> Lwt.return))
     (fun _exn ->
       (* TODO Improve the two-stream code using some helper. *)
-      let client_stream = Dream.Stream.(stream empty no_writer)
-      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      let client_stream = Stream.(stream empty no_writer)
+      and server_stream = Stream.(stream no_reader no_writer) in
       Dream.response ~status:`Not_Found client_stream server_stream
       |> Lwt.return)
 
@@ -75,10 +77,10 @@ let validate_path request =
 
 let static ?(loader = from_filesystem) local_root = fun request ->
 
-  if not @@ Dream.methods_equal (Dream.method_ request) `GET then
+  if not @@ Method.methods_equal (Dream.method_ request) `GET then
     (* TODO Simplify this code and reduce allocations. *)
-    let client_stream = Dream.Stream.(stream empty no_writer)
-    and server_stream = Dream.Stream.(stream no_reader no_writer) in
+    let client_stream = Stream.(stream empty no_writer)
+    and server_stream = Stream.(stream no_reader no_writer) in
     Dream.response ~status:`Not_Found client_stream server_stream
     |> Lwt.return
 
@@ -86,8 +88,8 @@ let static ?(loader = from_filesystem) local_root = fun request ->
     match validate_path request with
     | None ->
       (* TODO Improve with helpers. *)
-      let client_stream = Dream.Stream.(stream empty no_writer)
-      and server_stream = Dream.Stream.(stream no_reader no_writer) in
+      let client_stream = Stream.(stream empty no_writer)
+      and server_stream = Stream.(stream no_reader no_writer) in
       Dream.response ~status:`Not_Found client_stream server_stream
       |> Lwt.return
 

From 5a54d5c1eefbd527afd30734c08da950f6fd480c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 17 Dec 2021 07:26:57 +0300
Subject: [PATCH 093/312] Rename "locals" to "fields"

---
 src/cipher/cipher.ml      | 10 ++++----
 src/dream.ml              |  6 ++++-
 src/dream.mli             | 28 +++++++++++++++++++----
 src/http/error_handler.ml |  2 +-
 src/http/http.ml          |  2 +-
 src/middleware/flash.ml   |  8 +++----
 src/middleware/log.ml     | 20 ++++++++--------
 src/middleware/router.ml  | 26 ++++++++++-----------
 src/middleware/server.ml  | 16 ++++++-------
 src/middleware/session.ml | 14 ++++++------
 src/middleware/upload.ml  |  4 ++--
 src/pure/inmost.ml        | 48 ++++++++++++++++++---------------------
 src/pure/inmost.mli       | 10 ++++----
 src/sql/sql.ml            | 10 ++++----
 14 files changed, 112 insertions(+), 92 deletions(-)

diff --git a/src/cipher/cipher.ml b/src/cipher/cipher.ml
index 4d963bd8..75577d3f 100644
--- a/src/cipher/cipher.ml
+++ b/src/cipher/cipher.ml
@@ -118,8 +118,8 @@ struct
         | Some plaintext -> Some (Cstruct.to_string plaintext)
 end
 
-let secrets_variable =
-  Dream.new_local
+let secrets_field =
+  Dream.new_field
     ~name:"dream.secret"
     ~show_value:(fun _secrets -> "[redacted]")
     ()
@@ -131,19 +131,19 @@ let secrets_variable =
 let set_secret ?(old_secrets = []) secret =
   let value = secret::old_secrets in
   fun next_handler request ->
-    Dream.set_local request secrets_variable value;
+    Dream.set_field request secrets_field value;
     next_handler request
 
 let fallback_secrets =
   lazy [Random.random 32]
 
 let encryption_secret request =
-  match Dream.local request secrets_variable with
+  match Dream.field request secrets_field with
   | Some secrets -> List.hd secrets
   | None -> List.hd (Lazy.force fallback_secrets)
 
 let decryption_secrets request =
-  match Dream.local request secrets_variable with
+  match Dream.field request secrets_field with
   | Some secrets -> secrets
   | None -> Lazy.force fallback_secrets
 
diff --git a/src/dream.ml b/src/dream.ml
index 1cd455c7..0cb5be04 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -182,8 +182,12 @@ let with_stream message =
   set_stream message;
   message
 
+type 'a local = 'a field
+let new_local = new_field
+let local = field
+
 let with_local key value message =
-  set_local message key value;
+  set_field message key value;
   message
 
 let first message =
diff --git a/src/dream.mli b/src/dream.mli
index 27748882..cfb8101e 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2349,20 +2349,40 @@ val decrypt :
 
     Dream supports user-defined per-message variables for use by middlewares. *)
 
-type 'a local
+type 'a field
 (** Per-message variable. *)
 
-val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a local
+(**/**)
+type 'a local = 'a field
+[@@ocaml.deprecated " Renamed to type Dream.field."]
+(**/**)
+
+val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
 (** Declares a variable of type ['a] in all messages. The variable is initially
     unset in each message. The optional [~name] and [~show_value] are used by
     {!Dream.run} [~debug] to show the variable in debug dumps. *)
 
-val local : 'b message -> 'a local -> 'a option
+(**/**)
+val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
+[@@ocaml.deprecated " Renamed to Dream.new_field."]
+(**/**)
+
+val field : 'b message -> 'a field -> 'a option
 (** Retrieves the value of the per-message variable. *)
 
-val set_local : 'b message -> 'a local -> 'a -> unit
+(**/**)
+val local : 'b message -> 'a field -> 'a option
+[@@ocaml.deprecated " Renamed to Dream.field."]
+(**/**)
+
+val set_field : 'b message -> 'a field -> 'a -> unit
 (** Sets the per-message variable to the value. *)
 
+(**/**)
+val set_field : 'b message -> 'a field -> 'a -> unit
+[@@ocaml.deprecated " Renamed to Dream.set_field."]
+(**/**)
+
 (**/**)
 val with_local : 'a local -> 'a -> 'b message -> 'b message
 [@@ocaml.deprecated
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 1ec3f2f5..d1ed9611 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -97,7 +97,7 @@ let dump (error : Catch.error) =
     Dream.all_headers request
     |> List.iter (fun (name, value) -> p "\n%s: %s" name value);
 
-    Dream.fold_locals (fun name value first ->
+    Dream.fold_fields (fun name value first ->
       if first then
         p "\n";
       p "\n%s: %s" name value;
diff --git a/src/http/http.ml b/src/http/http.ml
index 0a88e8b1..09dd274f 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -406,7 +406,7 @@ let wrap_handler
              request_id field in requests. *)
           let user's_websocket_handler websocket =
             Lwt.with_value
-              Dream__middleware.Log.lwt_key
+              Dream__middleware.Log.id_lwt_key
               (Dream__middleware.Log.get_request_id ~request ())
               (fun () -> user's_websocket_handler websocket)
           in
diff --git a/src/middleware/flash.ml b/src/middleware/flash.ml
index 22d5e78e..17e0640c 100644
--- a/src/middleware/flash.ml
+++ b/src/middleware/flash.ml
@@ -15,8 +15,8 @@ let log =
 let five_minutes =
   5. *. 60.
 
-let storage =
-  Dream.new_local ~name:"dream.flash" ()
+let storage_field =
+  Dream.new_field ~name:"dream.flash" ()
 
 let flash_cookie =
   "dream.flash"
@@ -53,7 +53,7 @@ let flash request =
 
 let put_flash request category message =
   let outbox =
-    match Dream.local request storage with
+    match Dream.field request storage_field with
     | Some outbox -> outbox
     | None ->
       let message = "Missing flash message middleware" in
@@ -75,7 +75,7 @@ let flash_messages inner_handler request =
     else
       log ~request "%s" "No flash messages.");
   let outbox = ref [] in
-  Dream.set_local request storage outbox;
+  Dream.set_field request storage_field outbox;
   let existing = Cookie.cookie request flash_cookie in
   let%lwt response = inner_handler request in
   let entries = List.rev !outbox in
diff --git a/src/middleware/log.ml b/src/middleware/log.ml
index e7290602..f488e9ab 100644
--- a/src/middleware/log.ml
+++ b/src/middleware/log.ml
@@ -70,13 +70,13 @@ let logs_lib_tag : string Logs.Tag.def =
 
 (* Lwt sequence-associated storage key used to pass request ids for use when
    ~request is not provided. *)
-let lwt_key : string Lwt.key =
+let id_lwt_key : string Lwt.key =
   Lwt.new_key ()
 
 (* The actual request id "field" associated with each request by the logger. If
    this field is missing, the logger assigns the request a fresh id. *)
-let id =
-  Dream.new_local
+let id_field =
+  Dream.new_field
     ~name:request_id_label
     ~show_value:(fun id -> id)
     ()
@@ -86,11 +86,11 @@ let get_request_id ?request () =
   let request_id =
     match request with
     | None -> None
-    | Some request -> Dream.local request id
+    | Some request -> Dream.field request id_field
   in
   match request_id with
   | Some _ -> request_id
-  | None -> Lwt.get lwt_key
+  | None -> Lwt.get id_lwt_key
 
 (* The current state of the request id sequence. *)
 let last_id =
@@ -470,13 +470,13 @@ struct
 
     (* Get the requwst's id or assign a new one. *)
     let id =
-      match Dream.local request id with
+      match Dream.field request id_field with
       | Some id -> id
       | None ->
         last_id := !last_id + 1;
-        let new_id = string_of_int !last_id in
-        Dream.set_local request id new_id;
-        new_id
+        let id = string_of_int !last_id in
+        Dream.set_field request id_field id;
+        id
     in
 
     (* Identify the request in the log. *)
@@ -495,7 +495,7 @@ struct
     (* Call the rest of the app. *)
     Lwt.try_bind
       (fun () ->
-        Lwt.with_value lwt_key (Some id) (fun () ->
+        Lwt.with_value id_lwt_key (Some id) (fun () ->
           next_handler request))
       (fun response ->
         (* Log the elapsed time. If the response is a redirection, log the
diff --git a/src/middleware/router.ml b/src/middleware/router.ml
index e188716f..108837ea 100644
--- a/src/middleware/router.ml
+++ b/src/middleware/router.ml
@@ -165,8 +165,8 @@ let scope prefix middlewares routes =
 
 
 
-let path_variable : string list Dream.local =
-  Dream.new_local
+let path_field : string list Dream.field =
+  Dream.new_field
     ~name:"dream.path"
     ~show_value:(fun path -> String.concat "/" path)
     ()
@@ -175,24 +175,24 @@ let path_variable : string list Dream.local =
    string. *)
 (* TODO Remove this from the API. *)
 let path the_request =
-  match Dream.local the_request path_variable with
+  match Dream.field the_request path_field with
   | Some path -> path
   | None ->
     Dream.(Formats.(the_request |> target |> split_target |> fst |> from_path))
 
 (* TODO Move site_prefix into this file and remove with_path from the API. *)
 let set_path request path =
-  Dream.set_local request path_variable path
+  Dream.set_field request path_field path
 
 (* Prefix is stored backwards. *)
-let prefix_variable : string list Dream.local =
-  Dream.new_local
+let prefix_field : string list Dream.field =
+  Dream.new_field
     ~name:"dream.prefix"
     ~show_value:(fun prefix -> String.concat "/" (List.rev prefix))
     ()
 
 let internal_prefix request =
-  match Dream.local request prefix_variable with
+  match Dream.field request prefix_field with
   | Some prefix -> prefix
   | None -> []
 
@@ -200,10 +200,10 @@ let prefix request =
   Formats.make_path (List.rev (internal_prefix request))
 
 let set_prefix request prefix =
-  Dream.set_local request prefix_variable prefix
+  Dream.set_field request prefix_field prefix
 
-let params_variable : (string * string) list Dream.local =
-  Dream.new_local
+let params_field : (string * string) list Dream.field =
+  Dream.new_field
     ~name:"dream.params"
     ~show_value:(fun params ->
       params
@@ -222,7 +222,7 @@ let missing_param request name =
   failwith message
 
 let param request name =
-  match Dream.local request params_variable with
+  match Dream.field request params_field with
   | None -> missing_param request name
   | Some params ->
     try List.assoc name params
@@ -261,7 +261,7 @@ let router routes =
       match node with
       | Handler (method_, handler)
           when method_matches method_ (Dream.method_ request) ->
-        Dream.set_local request params_variable bindings;
+        Dream.set_field request params_field bindings;
         if is_wildcard then begin
           set_prefix request prefix;
           set_path request path;
@@ -279,7 +279,7 @@ let router routes =
     in
 
     let params =
-      match Dream.local request params_variable with
+      match Dream.field request params_field with
       | Some params -> params
       | None -> []
     in
diff --git a/src/middleware/server.ml b/src/middleware/server.ml
index df027256..89a4977d 100644
--- a/src/middleware/server.ml
+++ b/src/middleware/server.ml
@@ -11,8 +11,8 @@ module Stream = Dream_pure.Stream
 
 
 
-let client_variable =
-  Dream.new_local
+let client_field =
+  Dream.new_field
     ~name:"dream.client"
     ~show_value:(fun client -> client)
     ()
@@ -20,28 +20,28 @@ let client_variable =
 (* TODO What should be reported when the client address is missing? This is a
    sign of local testing. *)
 let client request =
-  match Dream.local request client_variable with
+  match Dream.field request client_field with
   | None -> "127.0.0.1:0"
   | Some client -> client
 
 let set_client request client =
-  Dream.set_local request client_variable client
+  Dream.set_field request client_field client
 
 
 
-let https_variable =
-  Dream.new_local
+let https_field =
+  Dream.new_field
     ~name:"dream.https"
     ~show_value:string_of_bool
     ()
 
 let https request =
-  match Dream.local request https_variable with
+  match Dream.field request https_field with
   | Some true -> true
   | _ -> false
 
 let set_https request https =
-  Dream.set_local request https_variable https
+  Dream.set_field request https_field https
 
 
 
diff --git a/src/middleware/session.ml b/src/middleware/session.ml
index df09c3c2..d7169597 100644
--- a/src/middleware/session.ml
+++ b/src/middleware/session.ml
@@ -19,14 +19,14 @@ type 'a back_end = {
   send : 'a -> Dream.request -> Dream.response -> Dream.response Lwt.t;
 }
 
-let middleware local back_end = fun inner_handler request ->
+let middleware field back_end = fun inner_handler request ->
   let%lwt session = back_end.load request in
-  Dream.set_local request local session;
+  Dream.set_field request field session;
   let%lwt response = inner_handler request in
   back_end.send session request response
 
-let getter local request =
-  match Dream.local request local with
+let getter field request =
+  match Dream.field request field with
   | Some session ->
     session
   | None ->
@@ -40,10 +40,10 @@ type 'a typed_middleware = {
 }
 
 let typed_middleware ?show_value () =
-  let local = Dream.new_local ~name:"dream.session" ?show_value () in
+  let field = Dream.new_field ~name:"dream.session" ?show_value () in
   {
-    middleware = middleware local;
-    getter = getter local;
+    middleware = middleware field;
+    getter = getter field;
   }
 
 
diff --git a/src/middleware/upload.ml b/src/middleware/upload.ml
index 15def736..9417c255 100644
--- a/src/middleware/upload.ml
+++ b/src/middleware/upload.ml
@@ -30,8 +30,8 @@ let initial_multipart_state () = {
 }
 
 (* TODO Dump the value of the multipart state somehow? *)
-let multipart_state_variable : multipart_state Dream.local =
-  Dream.new_local
+let multipart_state_field : multipart_state Dream.field =
+  Dream.new_field
     ~name:"dream.multipart"
     ()
 
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index d54aa98c..24ef3019 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -11,14 +11,11 @@ type status = Status.status
 type stream = Stream.stream
 type buffer = Stream.buffer
 
-module Scope_variable_metadata =
+module Custom_field_metadata =
 struct
   type 'a t = string option * ('a -> string) option
 end
-module Scope = Hmap.Make (Scope_variable_metadata)
-(* TODO Rename Scope, because there is now only one scope. *)
-(* TODO Given there are now only locals, maybe it's worth renaming them to
-   something else - there is now only one concept of variables. *)
+module Fields = Hmap.Make (Custom_field_metadata)
 
 type websocket = Stream.stream
 
@@ -30,7 +27,7 @@ and 'a message = {
   mutable headers : (string * string) list;
   mutable client_stream : Stream.stream;
   mutable server_stream : Stream.stream;
-  mutable locals : Scope.t;
+  mutable fields : Fields.t;
 }
 
 and client = {
@@ -223,29 +220,28 @@ let close_stream message =
 let is_websocket response =
   response.specific.websocket
 
-let fold_scope f initial scope =
-  Scope.fold (fun (B (key, value)) accumulator ->
-    match Scope.Key.info key with
-    | Some name, Some show_value -> f name (show_value value) accumulator
-    | _ -> accumulator)
-    scope
-    initial
 
-type 'a local = 'a Scope.key
 
-let new_local ?name ?show_value () =
-  Scope.Key.create (name, show_value)
+type 'a field = 'a Fields.key
+
+let new_field ?name ?show_value () =
+  Fields.Key.create (name, show_value)
+
+let field message key =
+  Fields.find key message.fields
 
-(* TODO Tension between "t-first" and not, because typically, for a getter, the
-   "index" parameter could be partially applied. *)
-let local message key =
-  Scope.find key message.locals
+let set_field message key value =
+  message.fields <- Fields.add key value message.fields
+
+let fold_fields f initial message =
+  Fields.fold (fun (B (key, value)) accumulator ->
+    match Fields.Key.info key with
+    | Some name, Some show_value -> f name (show_value value) accumulator
+    | _ -> accumulator)
+    message.fields
+    initial
 
-let set_local message key value =
-  message.locals <- Scope.add key value message.locals
 
-let fold_locals f initial message =
-  fold_scope f initial message.locals
 
 let request
     ?method_
@@ -275,7 +271,7 @@ let request
     headers;
     client_stream;
     server_stream;
-    locals = Scope.empty;
+    fields = Fields.empty;
   } in
 
   request
@@ -299,7 +295,7 @@ let response
     client_stream;
     server_stream;
     (* TODO This fully dead stream should be preallocated. *)
-    locals = Scope.empty;
+    fields = Fields.empty;
   } in
 
   response
diff --git a/src/pure/inmost.mli b/src/pure/inmost.mli
index 56cae5f3..d57b0b9b 100644
--- a/src/pure/inmost.mli
+++ b/src/pure/inmost.mli
@@ -111,8 +111,8 @@ val is_websocket : response -> (websocket -> unit promise) option
 
 
 
-type 'a local
-val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a local
-val local : 'b message -> 'a local -> 'a option
-val set_local : 'b message -> 'a local -> 'a -> unit
-val fold_locals : (string -> string -> 'a -> 'a) -> 'a -> 'b message -> 'a
+type 'a field
+val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
+val field : 'b message -> 'a field -> 'a option
+val set_field : 'b message -> 'a field -> 'a -> unit
+val fold_fields : (string -> string -> 'a -> 'a) -> 'a -> 'b message -> 'a
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index 69a667ad..af20da00 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -13,8 +13,8 @@ let log =
   Dream__middleware.Log.sub_log "dream.sql"
 
 (* TODO Debug metadata for the pools. *)
-let pool_variable : (_, Caqti_error.t) Caqti_lwt.Pool.t Dream.local =
-  Dream.new_local ()
+let pool_field : (_, Caqti_error.t) Caqti_lwt.Pool.t Dream.field =
+  Dream.new_field ()
 
 let foreign_keys_on =
   Caqti_request.exec Caqti_type.unit "PRAGMA foreign_keys = ON"
@@ -30,7 +30,7 @@ let sql_pool ?size uri =
 
   begin match !pool_cell with
   | Some pool ->
-    Dream.set_local request pool_variable pool;
+    Dream.set_field request pool_field pool;
     inner_handler request
   | None ->
     (* The correctness of this code is subtle. There is no race condition with
@@ -46,7 +46,7 @@ let sql_pool ?size uri =
     match pool with
     | Ok pool ->
       pool_cell := Some pool;
-      Dream.set_local request pool_variable pool;
+      Dream.set_field request pool_field pool;
       inner_handler request
     | Error error ->
       (* Deliberately raise an exception so that it can be communicated to any
@@ -59,7 +59,7 @@ let sql_pool ?size uri =
   end
 
 let sql request callback =
-  match Dream.local request pool_variable with
+  match Dream.field request pool_field with
   | None ->
     let message = "Dream.sql: no pool; did you apply Dream.sql_pool?" in
     log.error (fun log -> log ~request "%s" message);

From 9e8bc2fb8ef689724529c3b46cb3ecd1212f112b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 17 Dec 2021 07:31:52 +0300
Subject: [PATCH 094/312] mv src/middleware src/server

---
 src/{middleware => server}/catch.ml                 | 0
 src/{middleware => server}/content_length.ml        | 0
 src/{middleware => server}/cookie.ml                | 0
 src/{middleware => server}/csrf.ml                  | 0
 src/{middleware => server}/dune                     | 0
 src/{middleware => server}/echo.ml                  | 0
 src/{middleware => server}/error_template.eml.ml    | 0
 src/{middleware => server}/flash.ml                 | 0
 src/{middleware => server}/form.ml                  | 0
 src/{middleware => server}/log.ml                   | 0
 src/{middleware => server}/lowercase_headers.ml     | 0
 src/{middleware => server}/origin_referrer_check.ml | 0
 src/{middleware => server}/query.ml                 | 0
 src/{middleware => server}/router.ml                | 0
 src/{middleware => server}/router.mli               | 0
 src/{middleware => server}/server.ml                | 0
 src/{middleware => server}/session.ml               | 0
 src/{middleware => server}/site_prefix.ml           | 0
 src/{middleware => server}/tag.eml.ml               | 0
 src/{middleware => server}/upload.ml                | 0
 20 files changed, 0 insertions(+), 0 deletions(-)
 rename src/{middleware => server}/catch.ml (100%)
 rename src/{middleware => server}/content_length.ml (100%)
 rename src/{middleware => server}/cookie.ml (100%)
 rename src/{middleware => server}/csrf.ml (100%)
 rename src/{middleware => server}/dune (100%)
 rename src/{middleware => server}/echo.ml (100%)
 rename src/{middleware => server}/error_template.eml.ml (100%)
 rename src/{middleware => server}/flash.ml (100%)
 rename src/{middleware => server}/form.ml (100%)
 rename src/{middleware => server}/log.ml (100%)
 rename src/{middleware => server}/lowercase_headers.ml (100%)
 rename src/{middleware => server}/origin_referrer_check.ml (100%)
 rename src/{middleware => server}/query.ml (100%)
 rename src/{middleware => server}/router.ml (100%)
 rename src/{middleware => server}/router.mli (100%)
 rename src/{middleware => server}/server.ml (100%)
 rename src/{middleware => server}/session.ml (100%)
 rename src/{middleware => server}/site_prefix.ml (100%)
 rename src/{middleware => server}/tag.eml.ml (100%)
 rename src/{middleware => server}/upload.ml (100%)

diff --git a/src/middleware/catch.ml b/src/server/catch.ml
similarity index 100%
rename from src/middleware/catch.ml
rename to src/server/catch.ml
diff --git a/src/middleware/content_length.ml b/src/server/content_length.ml
similarity index 100%
rename from src/middleware/content_length.ml
rename to src/server/content_length.ml
diff --git a/src/middleware/cookie.ml b/src/server/cookie.ml
similarity index 100%
rename from src/middleware/cookie.ml
rename to src/server/cookie.ml
diff --git a/src/middleware/csrf.ml b/src/server/csrf.ml
similarity index 100%
rename from src/middleware/csrf.ml
rename to src/server/csrf.ml
diff --git a/src/middleware/dune b/src/server/dune
similarity index 100%
rename from src/middleware/dune
rename to src/server/dune
diff --git a/src/middleware/echo.ml b/src/server/echo.ml
similarity index 100%
rename from src/middleware/echo.ml
rename to src/server/echo.ml
diff --git a/src/middleware/error_template.eml.ml b/src/server/error_template.eml.ml
similarity index 100%
rename from src/middleware/error_template.eml.ml
rename to src/server/error_template.eml.ml
diff --git a/src/middleware/flash.ml b/src/server/flash.ml
similarity index 100%
rename from src/middleware/flash.ml
rename to src/server/flash.ml
diff --git a/src/middleware/form.ml b/src/server/form.ml
similarity index 100%
rename from src/middleware/form.ml
rename to src/server/form.ml
diff --git a/src/middleware/log.ml b/src/server/log.ml
similarity index 100%
rename from src/middleware/log.ml
rename to src/server/log.ml
diff --git a/src/middleware/lowercase_headers.ml b/src/server/lowercase_headers.ml
similarity index 100%
rename from src/middleware/lowercase_headers.ml
rename to src/server/lowercase_headers.ml
diff --git a/src/middleware/origin_referrer_check.ml b/src/server/origin_referrer_check.ml
similarity index 100%
rename from src/middleware/origin_referrer_check.ml
rename to src/server/origin_referrer_check.ml
diff --git a/src/middleware/query.ml b/src/server/query.ml
similarity index 100%
rename from src/middleware/query.ml
rename to src/server/query.ml
diff --git a/src/middleware/router.ml b/src/server/router.ml
similarity index 100%
rename from src/middleware/router.ml
rename to src/server/router.ml
diff --git a/src/middleware/router.mli b/src/server/router.mli
similarity index 100%
rename from src/middleware/router.mli
rename to src/server/router.mli
diff --git a/src/middleware/server.ml b/src/server/server.ml
similarity index 100%
rename from src/middleware/server.ml
rename to src/server/server.ml
diff --git a/src/middleware/session.ml b/src/server/session.ml
similarity index 100%
rename from src/middleware/session.ml
rename to src/server/session.ml
diff --git a/src/middleware/site_prefix.ml b/src/server/site_prefix.ml
similarity index 100%
rename from src/middleware/site_prefix.ml
rename to src/server/site_prefix.ml
diff --git a/src/middleware/tag.eml.ml b/src/server/tag.eml.ml
similarity index 100%
rename from src/middleware/tag.eml.ml
rename to src/server/tag.eml.ml
diff --git a/src/middleware/upload.ml b/src/server/upload.ml
similarity index 100%
rename from src/middleware/upload.ml
rename to src/server/upload.ml

From 2335f69fbdcd504242c92ea58f48dbeafc026838 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 17 Dec 2021 07:47:29 +0300
Subject: [PATCH 095/312] Rename dream.middleware to dream.server

---
 src/dream.ml                         | 54 ++++++++++++++--------------
 src/dream.mli                        |  2 +-
 src/dune                             |  2 +-
 src/graphql/dune                     |  2 +-
 src/graphql/graphql.ml               | 15 ++++----
 src/http/dune                        |  2 +-
 src/http/error_handler.ml            | 21 +++++------
 src/http/error_handler.mli           |  5 +--
 src/http/http.ml                     | 31 ++++++++--------
 src/server/catch.ml                  |  4 +--
 src/server/cookie.ml                 |  4 +--
 src/server/dune                      |  4 +--
 src/server/{server.ml => helpers.ml} |  0
 src/server/log.ml                    |  2 +-
 src/server/origin_referrer_check.ml  |  4 +--
 src/sql/dune                         |  2 +-
 src/sql/session.ml                   |  4 +--
 src/sql/sql.ml                       |  3 +-
 src/unix/dune                        |  2 +-
 src/unix/static.ml                   |  6 ++--
 20 files changed, 89 insertions(+), 80 deletions(-)
 rename src/server/{server.ml => helpers.ml} (100%)

diff --git a/src/dream.ml b/src/dream.ml
index 0cb5be04..ef94ce98 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -11,51 +11,51 @@ include Dream_pure.Method
 include Dream_pure.Inmost
 include Dream_pure.Formats
 
-include Dream__middleware.Log
-include Dream__middleware.Log.Make (Ptime_clock)
+include Dream__server.Log
+include Dream__server.Log.Make (Ptime_clock)
 (* Initalize logs with the default reporter which uses [Ptime_clock], this
-   function is a part of [Dream__middleware.Log.Make], it's why it is not
-   prepended by a module name. *)
+   function is a part of [Dream__server.Log.Make], it's why it is not prepended
+   by a module name. *)
 let () =
   initialize ~setup_outputs:Fmt_tty.setup_std_outputs
-include Dream__middleware.Echo
+include Dream__server.Echo
 
 let default_log =
-  Dream__middleware.Log.sub_log (Logs.Src.name Logs.default)
+  Dream__server.Log.sub_log (Logs.Src.name Logs.default)
 
 let error = default_log.error
 let warning = default_log.warning
 let info = default_log.info
 let debug = default_log.debug
 
-include Dream__middleware.Router
+include Dream__server.Router
 include Dream__unix.Static
 
 include Dream__cipher.Cipher
-include Dream__middleware.Cookie
+include Dream__server.Cookie
 
-include Dream__middleware.Session
-include Dream__middleware.Session.Make (Ptime_clock)
+include Dream__server.Session
+include Dream__server.Session.Make (Ptime_clock)
 let sql_sessions = Dream__sql.Session.middleware
 
-include Dream__middleware.Flash
+include Dream__server.Flash
 
-include Dream__middleware.Origin_referrer_check
-include Dream__middleware.Form
-include Dream__middleware.Upload
-include Dream__middleware.Csrf
+include Dream__server.Origin_referrer_check
+include Dream__server.Form
+include Dream__server.Upload
+include Dream__server.Csrf
 
 let content_length =
-  Dream__middleware.Content_length.content_length
+  Dream__server.Content_length.content_length
 
 include Dream__graphql.Graphql
 include Dream__sql.Sql
 
 include Dream__http.Http
 
-include Dream__middleware.Lowercase_headers
-include Dream__middleware.Catch
-include Dream__middleware.Site_prefix
+include Dream__server.Lowercase_headers
+include Dream__server.Catch
+include Dream__server.Site_prefix
 
 let debug_error_handler =
   Dream__http.Error_handler.debug_error_handler
@@ -79,9 +79,9 @@ let test ?(prefix = "") handler request =
   Lwt_main.run (app request)
 
 let log =
-  Dream__middleware.Log.convenience_log
+  Dream__server.Log.convenience_log
 
-include Dream__middleware.Tag
+include Dream__server.Tag
 
 let respond ?status ?code ?headers body =
   let client_stream = stream (string body) no_writer
@@ -130,17 +130,17 @@ let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
   form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
 
 let client =
-  Dream__middleware.Server.client
+  Dream__server.Helpers.client
 let set_client =
-  Dream__middleware.Server.set_client
+  Dream__server.Helpers.set_client
 let https =
-  Dream__middleware.Server.https
+  Dream__server.Helpers.https
 let html =
-  Dream__middleware.Server.html
+  Dream__server.Helpers.html
 let json =
-  Dream__middleware.Server.json
+  Dream__server.Helpers.json
 
-include Dream__middleware.Query
+include Dream__server.Query
 
 let request ?method_ ?target ?version ?headers body =
   (* TODO Streams. *)
diff --git a/src/dream.mli b/src/dream.mli
index cfb8101e..7330168c 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2384,7 +2384,7 @@ val set_field : 'b message -> 'a field -> 'a -> unit
 (**/**)
 
 (**/**)
-val with_local : 'a local -> 'a -> 'b message -> 'b message
+val with_local : 'a field -> 'a -> 'b message -> 'b message
 [@@ocaml.deprecated
 " Use Dream.set_local instead. See
   https://aantron.github.io/dream/#val-set_local"]
diff --git a/src/dune b/src/dune
index ca4934a6..053e23f9 100644
--- a/src/dune
+++ b/src/dune
@@ -7,7 +7,7 @@
   dream.cipher
   dream.graphql
   dream.http
-  dream.middleware
+  dream.server
   dream.unix
   dream-pure
   dream.sql
diff --git a/src/graphql/dune b/src/graphql/dune
index 20eab391..7397ce17 100644
--- a/src/graphql/dune
+++ b/src/graphql/dune
@@ -3,8 +3,8 @@
  (name dream__graphql)
  (libraries
   dream.graphiql
-  dream.middleware
   dream-pure
+  dream.server
   graphql_parser
   graphql-lwt
   lwt
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index fc776826..b8f6b89c 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -6,8 +6,9 @@
 
 
 module Dream = Dream_pure.Inmost
+module Helpers = Dream__server.Helpers
+module Log = Dream__server.Log
 module Method = Dream_pure.Method
-module Server = Dream__middleware.Server
 module Stream = Dream_pure.Stream
 
 
@@ -24,7 +25,7 @@ module Stream = Dream_pure.Stream
        https://github.com/enisdenjo/graphql-ws/blob/master/PROTOCOL.md *)
 
 let log =
-  Dream__middleware.Log.sub_log "dream.graphql"
+  Log.sub_log "dream.graphql"
 
 
 
@@ -238,7 +239,7 @@ let handle_over_websocket make_context schema subscriptions request websocket =
             log.error (fun log ->
               log ~request "%s" (Printexc.to_string exn));
             backtrace
-            |> Dream__middleware.Log.iter_backtrace (fun line ->
+            |> Log.iter_backtrace (fun line ->
               log.error (fun log -> log ~request "%s" line));
 
             try%lwt
@@ -302,16 +303,16 @@ let graphql make_context schema = fun request ->
       begin match%lwt run_query make_context schema request json with
       | Error json ->
         Yojson.Basic.to_string json
-        |> Server.json
+        |> Helpers.json
 
       | Ok (`Response json) ->
         Yojson.Basic.to_string json
-        |> Server.json
+        |> Helpers.json
 
       | Ok (`Stream _) ->
         make_error "Subscriptions and streaming should use WebSocket transport"
         |> Yojson.Basic.to_string
-        |> Server.json
+        |> Helpers.json
       end
 
     | _ ->
@@ -354,4 +355,4 @@ let graphiql ?(default_query = "") graphql_endpoint =
   in
 
   fun _request ->
-    Server.html (Lazy.force html)
+    Helpers.html (Lazy.force html)
diff --git a/src/http/dune b/src/http/dune
index 78693aca..9280e5c6 100644
--- a/src/http/dune
+++ b/src/http/dune
@@ -7,8 +7,8 @@
   digestif
   dream.cipher
   dream.localhost
-  dream.middleware
   dream-pure
+  dream.server
   dream-httpaf.gluten
   dream-httpaf.gluten-lwt-unix
   dream-httpaf.h2
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index d1ed9611..4089bbad 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -5,10 +5,12 @@
 
 
 
-module Catch = Dream__middleware.Catch
+module Catch = Dream__server.Catch
 module Dream = Dream_pure.Inmost
+module Error_template = Dream__server.Error_template
 module Method = Dream_pure.Method
-module Server = Dream__middleware.Server
+module Helpers = Dream__server.Helpers
+module Log = Dream__server.Log
 module Status = Dream_pure.Status
 module Stream = Dream_pure.Stream
 
@@ -20,7 +22,7 @@ module Stream = Dream_pure.Stream
    an app. *)
 
 let log =
-  Dream__middleware.Log.sub_log "dream.http"
+  Log.sub_log "dream.http"
 
 let select_log = function
   | `Error -> log.error
@@ -48,7 +50,7 @@ let dump (error : Catch.error) =
   | `Exn exn ->
     let backtrace = Printexc.get_backtrace () in
     p "%s\n" (Printexc.to_string exn);
-    backtrace |> Dream__middleware.Log.iter_backtrace (p "%s\n")
+    backtrace |> Log.iter_backtrace (p "%s\n")
   end;
 
   p "\n";
@@ -147,7 +149,7 @@ let customize template (error : Catch.error) =
 
     select_log error.severity (fun log ->
       log ?request:error.request "%s" message);
-    backtrace |> Dream__middleware.Log.iter_backtrace (fun line ->
+    backtrace |> Log.iter_backtrace (fun line ->
       select_log error.severity (fun log ->
         log ?request:error.request "%s" line))
   end;
@@ -194,8 +196,7 @@ let debug_template _error debug_dump response =
   let code = Status.status_to_int status
   and reason = Status.status_to_string status in
   Dream.set_header response "Content-Type" Dream_pure.Formats.text_html;
-  Dream.set_body response
-    (Dream__middleware.Error_template.render ~debug_dump ~code ~reason);
+  Dream.set_body response (Error_template.render ~debug_dump ~code ~reason);
   Lwt.return response
 
 let default =
@@ -218,7 +219,7 @@ let double_faults f default =
       log "Error handler raised: %s" (Printexc.to_string exn));
 
     backtrace
-    |> Dream__middleware.Log.iter_backtrace (fun line ->
+    |> Log.iter_backtrace (fun line ->
       log.error (fun log -> log "%s" line));
 
     default ()
@@ -442,7 +443,7 @@ let websocket
     caused_by = `Server;
     request = Some request;
     response = Some response;
-    client = Some (Server.client request);
+    client = Some (Helpers.client request);
     severity = `Warning;   (* Not sure what these errors are, yet. *)
     will_send_response = false;
   } in
@@ -464,7 +465,7 @@ let websocket_handshake
     caused_by = `Client;
     request = Some request;
     response = Some response;
-    client = Some (Server.client request);
+    client = Some (Helpers.client request);
     severity = `Warning;
     will_send_response = true;
   } in
diff --git a/src/http/error_handler.mli b/src/http/error_handler.mli
index 6e1854f9..5e96f6fe 100644
--- a/src/http/error_handler.mli
+++ b/src/http/error_handler.mli
@@ -5,8 +5,9 @@
 
 
 
+module Catch = Dream__server.Catch
 module Dream = Dream_pure.Inmost
-module Catch = Dream__middleware.Catch
+module Log = Dream__server.Log
 
 
 
@@ -62,4 +63,4 @@ val websocket_handshake :
 
 
 (* Logger also used by elsewhere in the HTTP integration. *)
-val log : Dream__middleware.Log.sub_log
+val log : Log.sub_log
diff --git a/src/http/http.ml b/src/http/http.ml
index 09dd274f..20d6f354 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -5,10 +5,13 @@
 
 
 
-module Catch = Dream__middleware.Catch
+module Catch = Dream__server.Catch
+module Content_length = Dream__server.Content_length
 module Dream = Dream_pure.Inmost
+module Helpers = Dream__server.Helpers
+module Log = Dream__server.Log
+module Lowercase_headers = Dream__server.Lowercase_headers
 module Method = Dream_pure.Method
-module Server = Dream__middleware.Server
 module Status = Dream_pure.Status
 module Stream = Dream_pure.Stream
 
@@ -33,7 +36,7 @@ let sha1 s =
   |> Digestif.SHA1.to_raw_string
 
 let websocket_log =
-  Dream__middleware.Log.sub_log "dream.websocket"
+  Log.sub_log "dream.websocket"
 
 let websocket_handler user's_websocket_handler socket =
 
@@ -302,7 +305,7 @@ let wrap_handler
     (user's_dream_handler : Dream.handler) =
 
   let httpaf_request_handler = fun client_address (conn : _ Gluten.Reqd.t) ->
-    Dream__middleware.Log.set_up_exception_hook ();
+    Log.set_up_exception_hook ();
 
     let conn, upgrade = conn.reqd, conn.upgrade in
 
@@ -341,7 +344,7 @@ let wrap_handler
       Stream.stream body Stream.no_writer in
 
     let request : Dream.request =
-      Server.request ~client ~method_ ~target ~https ~version ~headers body in
+      Helpers.request ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -406,8 +409,8 @@ let wrap_handler
              request_id field in requests. *)
           let user's_websocket_handler websocket =
             Lwt.with_value
-              Dream__middleware.Log.id_lwt_key
-              (Dream__middleware.Log.get_request_id ~request ())
+              Log.id_lwt_key
+              (Log.get_request_id ~request ())
               (fun () -> user's_websocket_handler websocket)
           in
 
@@ -451,7 +454,7 @@ let wrap_handler_h2
     (user's_dream_handler : Dream.handler) =
 
   let httpaf_request_handler = fun client_address (conn : H2.Reqd.t) ->
-    Dream__middleware.Log.set_up_exception_hook ();
+    Log.set_up_exception_hook ();
 
     (* Covert the h2 request to a Dream request. *)
     let httpaf_request : H2.Request.t =
@@ -484,7 +487,7 @@ let wrap_handler_h2
       Stream.stream body Stream.no_writer in
 
     let request : Dream.request =
-      Server.request ~client ~method_ ~target ~https ~version ~headers body in
+      Helpers.request ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -645,9 +648,9 @@ let ocaml_tls = {
 
 let built_in_middleware error_handler =
   Dream.pipeline [
-    Dream__middleware.Lowercase_headers.lowercase_headers;
-    Dream__middleware.Content_length.content_length;
-    Dream__middleware.Catch.catch (Error_handler.app error_handler);
+    Lowercase_headers.lowercase_headers;
+    Content_length.content_length;
+    Catch.catch (Error_handler.app error_handler);
   ]
 
 
@@ -871,7 +874,7 @@ let serve_with_maybe_https
     log.error (fun log ->
       log "Dream.%s: exception %s"
         caller_function_for_error_messages (Printexc.to_string exn));
-    backtrace |> Dream__middleware.Log.iter_backtrace (fun line ->
+    backtrace |> Log.iter_backtrace (fun line ->
       log.error (fun log -> log "%s" line));
     raise exn
 
@@ -965,7 +968,7 @@ let run
   create_handler Sys.sigint;
   create_handler Sys.sigterm;
 
-  let log = Dream__middleware.Log.convenience_log in
+  let log = Log.convenience_log in
 
   if greeting then begin
     let scheme =
diff --git a/src/server/catch.ml b/src/server/catch.ml
index 7e29d8bc..8922c062 100644
--- a/src/server/catch.ml
+++ b/src/server/catch.ml
@@ -66,7 +66,7 @@ let catch error_handler next_handler request =
           caused_by;
           request = Some request;
           response = Some response;
-          client = Some (Server.client request);
+          client = Some (Helpers.client request);
           severity = severity;
           will_send_response = true;
         } in
@@ -87,7 +87,7 @@ let catch error_handler next_handler request =
         caused_by = `Server;
         request = Some request;
         response = None;
-        client = Some (Server.client request);
+        client = Some (Helpers.client request);
         severity = `Error;
         will_send_response = true;
       } in
diff --git a/src/server/cookie.ml b/src/server/cookie.ml
index dfe24375..84742f08 100644
--- a/src/server/cookie.ml
+++ b/src/server/cookie.ml
@@ -56,7 +56,7 @@ let cookie
   let secure =
     match secure with
     | Some secure -> secure
-    | None -> Server.https request
+    | None -> Helpers.https request
   in
 
   let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
@@ -100,7 +100,7 @@ let set_cookie
   let secure =
     match secure with
     | Some secure -> secure
-    | None -> Server.https request
+    | None -> Helpers.https request
   in
 
   let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
diff --git a/src/server/dune b/src/server/dune
index 77a2f0b5..9afd04a3 100644
--- a/src/server/dune
+++ b/src/server/dune
@@ -1,6 +1,6 @@
 (library
- (public_name dream.middleware)
- (name dream__middleware)
+ (public_name dream.server)
+ (name dream__server)
  (libraries
   digestif
   dream.cipher
diff --git a/src/server/server.ml b/src/server/helpers.ml
similarity index 100%
rename from src/server/server.ml
rename to src/server/helpers.ml
diff --git a/src/server/log.ml b/src/server/log.ml
index f488e9ab..ff5cebd7 100644
--- a/src/server/log.ml
+++ b/src/server/log.ml
@@ -489,7 +489,7 @@ struct
       log ~request "%s %s %s %s"
         (Method.method_to_string (Dream.method_ request))
         (Dream.target request)
-        (Server.client request)
+        (Helpers.client request)
         user_agent);
 
     (* Call the rest of the app. *)
diff --git a/src/server/origin_referrer_check.ml b/src/server/origin_referrer_check.ml
index 9cccfe9f..93d5c415 100644
--- a/src/server/origin_referrer_check.ml
+++ b/src/server/origin_referrer_check.ml
@@ -55,8 +55,8 @@ let origin_referrer_check inner_handler request =
 
         let schemes_match =
           match Uri.scheme origin_uri with
-          | Some "http" -> not (Server.https request)
-          | Some "https" -> Server.https request
+          | Some "http" -> not (Helpers.https request)
+          | Some "https" -> Helpers.https request
           | _ -> false
         in
 
diff --git a/src/sql/dune b/src/sql/dune
index 7966abac..e4244f42 100644
--- a/src/sql/dune
+++ b/src/sql/dune
@@ -5,8 +5,8 @@
   caqti
   caqti-lwt
   dream.cipher
-  dream.middleware
   dream-pure
+  dream.server
   uri
   yojson)
  (preprocess (pps lwt_ppx))
diff --git a/src/sql/session.ml b/src/sql/session.ml
index fd868afa..5bf01527 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -6,8 +6,8 @@
 
 
 module Dream = Dream_pure
-module Cookie = Dream__middleware.Cookie
-module Session = Dream__middleware.Session
+module Cookie = Dream__server.Cookie
+module Session = Dream__server.Session
 
 
 
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index af20da00..234343f8 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -6,11 +6,12 @@
 
 
 module Dream = Dream_pure.Inmost
+module Log = Dream__server.Log
 
 
 
 let log =
-  Dream__middleware.Log.sub_log "dream.sql"
+  Log.sub_log "dream.sql"
 
 (* TODO Debug metadata for the pools. *)
 let pool_field : (_, Caqti_error.t) Caqti_lwt.Pool.t Dream.field =
diff --git a/src/unix/dune b/src/unix/dune
index 7cc1e262..170fa3a8 100644
--- a/src/unix/dune
+++ b/src/unix/dune
@@ -3,8 +3,8 @@
  (name dream__unix)
  (libraries
   digestif
-  dream.middleware
   dream-pure
+  dream.server
   lwt.unix
   magic-mime
  )
diff --git a/src/unix/static.ml b/src/unix/static.ml
index 0c89e21f..7a163bbf 100644
--- a/src/unix/static.ml
+++ b/src/unix/static.ml
@@ -6,7 +6,9 @@
 
 
 module Dream = Dream_pure.Inmost
+module Formats = Dream_pure.Formats
 module Method = Dream_pure.Method
+module Router = Dream__server.Router
 module Stream = Dream_pure.Stream
 
 
@@ -19,7 +21,7 @@ module Stream = Dream_pure.Stream
 let mime_lookup filename =
   let content_type =
     match Magic_mime.lookup filename with
-    | "text/html" -> Dream_pure.Formats.text_html
+    | "text/html" -> Formats.text_html
     | content_type -> content_type
   in
   ["Content-Type", content_type]
@@ -49,7 +51,7 @@ let from_filesystem local_root path _ =
 (* TODO On Windows, should we also check for \ and drive letters? *)
 (* TODO Not an efficient implementation at the moment. *)
 let validate_path request =
-  let path = Dream__middleware.Router.path request in
+  let path = Router.path request in
 
   let has_slash component = String.contains component '/' in
   let has_backslash component = String.contains component '\\' in

From ed4c24f6a826a8d2808bbaebbd1986f4d0fdf226 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 17 Dec 2021 08:01:07 +0300
Subject: [PATCH 096/312] Move helpers

---
 src/dream.ml          | 66 +++++++++++++------------------------------
 src/server/helpers.ml | 52 ++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+), 47 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index ef94ce98..6e7efd7c 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -83,42 +83,20 @@ let log =
 
 include Dream__server.Tag
 
-let respond ?status ?code ?headers body =
-  let client_stream = stream (string body) no_writer
-  and server_stream = stream no_reader no_writer in
-  response ?status ?code ?headers client_stream server_stream
-  |> Lwt.return
-
-(* TODO Actually use the request and extract the site prefix. *)
-let redirect ?status ?code ?headers _request location =
-  let status = (status :> redirection option) in
-  let status =
-    match status, code with
-    | None, None -> Some (`See_Other)
-    | _ -> status
-  in
-  (* TODO The streams. *)
-  let client_stream = stream empty no_writer
-  and server_stream = stream no_reader no_writer in
-  let response = response ?status ?code ?headers client_stream server_stream in
-  set_header response "Location" location;
-  Lwt.return response
-
-let stream ?status ?code ?headers f =
-  (* TODO Streams. *)
-  let client_stream = stream empty no_writer
-  and server_stream = stream no_reader no_writer in
-  let response = response ?status ?code ?headers client_stream server_stream in
-  set_stream response;
-  (* TODO Should set up an error handler for this. *)
-  Lwt.async (fun () -> f response);
-  Lwt.return response
-
-let empty ?headers status =
-  respond ?headers ~status ""
-
-let not_found _ =
-  respond ~status:`Not_Found ""
+let respond =
+  Dream__server.Helpers.respond
+
+let redirect =
+  Dream__server.Helpers.redirect
+
+let stream =
+  Dream__server.Helpers.stream
+
+let empty =
+  Dream__server.Helpers.empty
+
+let not_found =
+  Dream__server.Helpers.not_found
 
 let now () = Ptime.to_float_s (Ptime.v (Ptime_clock.now_d_ps ()))
 
@@ -142,17 +120,11 @@ let json =
 
 include Dream__server.Query
 
-let request ?method_ ?target ?version ?headers body =
-  (* TODO Streams. *)
-  let client_stream = Dream_pure.Stream.stream no_reader no_writer
-  and server_stream = Dream_pure.Stream.stream (string body) no_writer in
-  request ?method_ ?target ?version ?headers client_stream server_stream
-
-let response ?status ?code ?headers body =
-  (* TODO Streams. *)
-  let client_stream = Dream_pure.Stream.stream (string body) no_writer
-  and server_stream = Dream_pure.Stream.stream no_reader no_writer in
-  response ?status ?code ?headers client_stream server_stream
+let request =
+  Dream__server.Helpers.request_with_body
+
+let response =
+  Dream__server.Helpers.response_with_body
 
 let with_client client message =
   set_client message client;
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index 89a4977d..e62ccf40 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -7,6 +7,7 @@
 
 module Dream = Dream_pure.Inmost
 module Formats = Dream_pure.Formats
+module Status = Dream_pure.Status
 module Stream = Dream_pure.Stream
 
 
@@ -55,6 +56,12 @@ let request ~client ~method_ ~target ~https ~version ~headers server_stream =
   set_https request https;
   request
 
+let request_with_body ?method_ ?target ?version ?headers body =
+  (* TODO Streams. *)
+  let client_stream = Stream.(stream no_reader no_writer)
+  and server_stream = Stream.(stream (string body) no_writer) in
+  Dream.request ?method_ ?target ?version ?headers client_stream server_stream
+
 
 
 let html ?status ?code ?headers body =
@@ -74,3 +81,48 @@ let json ?status ?code ?headers body =
     Dream.response ?status ?code ?headers client_stream server_stream in
   Dream.set_header response "Content-Type" Formats.application_json;
   Lwt.return response
+
+let response_with_body ?status ?code ?headers body =
+  (* TODO Streams. *)
+  let client_stream = Stream.(stream (string body) no_writer)
+  and server_stream = Stream.(stream no_reader no_writer) in
+  Dream.response ?status ?code ?headers client_stream server_stream
+
+let respond ?status ?code ?headers body =
+  let client_stream = Stream.(stream (string body) no_writer)
+  and server_stream = Stream.(stream no_reader no_writer) in
+  Dream.response ?status ?code ?headers client_stream server_stream
+  |> Lwt.return
+
+(* TODO Actually use the request and extract the site prefix. *)
+let redirect ?status ?code ?headers _request location =
+  let status = (status :> Status.redirection option) in
+  let status =
+    match status, code with
+    | None, None -> Some (`See_Other)
+    | _ -> status
+  in
+  (* TODO The streams. *)
+  let client_stream = Stream.(stream empty no_writer)
+  and server_stream = Stream.(stream no_reader no_writer) in
+  let response =
+    Dream.response ?status ?code ?headers client_stream server_stream in
+  Dream.set_header response "Location" location;
+  Lwt.return response
+
+let stream ?status ?code ?headers f =
+  (* TODO Streams. *)
+  let client_stream = Stream.(stream empty no_writer)
+  and server_stream = Stream.(stream no_reader no_writer) in
+  let response =
+    Dream.response ?status ?code ?headers client_stream server_stream in
+  Dream.set_stream response;
+  (* TODO Should set up an error handler for this. *)
+  Lwt.async (fun () -> f response);
+  Lwt.return response
+
+let empty ?headers status =
+  respond ?headers ~status ""
+
+let not_found _ =
+  respond ~status:`Not_Found ""

From 1da1452bfc735ea0f9bb381c4532142ad7b44640 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 17 Dec 2021 08:59:48 +0300
Subject: [PATCH 097/312] Compose dream.ml explicitly (delete most includes)

---
 src/dream.ml       | 451 +++++++++++++++++++++++++++++++++++----------
 src/dream.mli      |   4 +-
 src/sql/session.ml |   2 +-
 3 files changed, 358 insertions(+), 99 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index 6e7efd7c..a81bf0f9 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -5,161 +5,418 @@
 
 
 
-include Dream_pure.Status
-include Dream_pure.Stream
-include Dream_pure.Method
-include Dream_pure.Inmost
-include Dream_pure.Formats
-
-include Dream__server.Log
-include Dream__server.Log.Make (Ptime_clock)
-(* Initalize logs with the default reporter which uses [Ptime_clock], this
-   function is a part of [Dream__server.Log.Make], it's why it is not prepended
-   by a module name. *)
-let () =
-  initialize ~setup_outputs:Fmt_tty.setup_std_outputs
-include Dream__server.Echo
+module Catch = Dream__server.Catch
+module Cipher = Dream__cipher.Cipher
+module Cookie = Dream__server.Cookie
+module Content_length = Dream__server.Content_length
+module Csrf = Dream__server.Csrf
+module Dream = Dream_pure.Inmost
+module Echo = Dream__server.Echo
+module Error_handler = Dream__http.Error_handler
+module Flash = Dream__server.Flash
+module Form = Dream__server.Form
+module Formats = Dream_pure.Formats
+module Graphql = Dream__graphql.Graphql
+module Helpers = Dream__server.Helpers
+module Http = Dream__http.Http
+module Lowercase_headers = Dream__server.Lowercase_headers
+module Method = Dream_pure.Method
+module Origin_referrer_check = Dream__server.Origin_referrer_check
+module Query = Dream__server.Query
+module Random = Dream__cipher.Random
+module Router = Dream__server.Router
+module Site_prefix = Dream__server.Site_prefix
+module Sql = Dream__sql.Sql
+module Sql_session = Dream__sql.Session
+module Static = Dream__unix.Static
+module Status = Dream_pure.Status
+module Stream = Dream_pure.Stream
+module Tag = Dream__server.Tag
+module Upload = Dream__server.Upload
+
+
+
+(* Initialize clock handling and random number generator. These are
+   platform-specific, differing between Unix and Mirage. This is the Unix
+   initialization. *)
+
+module Log =
+struct
+  include Dream__server.Log
+  include Dream__server.Log.Make (Ptime_clock)
+end
 
 let default_log =
-  Dream__server.Log.sub_log (Logs.Src.name Logs.default)
+  Log.sub_log (Logs.Src.name Logs.default)
+
+let () =
+  Log.initialize ~setup_outputs:Fmt_tty.setup_std_outputs
+
+let now () =
+  Ptime.to_float_s (Ptime.v (Ptime_clock.now_d_ps ()))
+
+let () =
+  Random.initialize Mirage_crypto_rng_lwt.initialize
+
+module Session =
+struct
+  include Dream__server.Session
+  include Dream__server.Session.Make (Ptime_clock)
+end
+
+
+
+(* Types *)
+
+type request = Dream.request
+type response = Dream.response
+type handler = Dream.handler
+type middleware = Dream.middleware
+type route = Router.route
+
+type 'a message = 'a Dream.message
+type client = Dream.client
+type server = Dream.server
+type 'a promise = 'a Dream.promise
+
+
+
+(* Methods *)
+
+include Method
+
+
+
+(* Status codes *)
+
+include Status
+
+
+
+(* Requests *)
+
+let client = Helpers.client
+let https = Helpers.https
+let method_ = Dream.method_
+let target = Dream.target
+let prefix = Router.prefix
+let path = Router.path
+let version = Dream.version
+let set_client = Helpers.set_client
+let set_method_ = Dream.set_method_
+let query = Query.query
+let queries = Query.queries
+let all_queries = Query.all_queries
+
+
+
+(* Responses *)
+
+let response = Helpers.response_with_body
+let respond = Helpers.respond
+let html = Helpers.html
+let json = Helpers.json
+let redirect = Helpers.redirect
+let empty = Helpers.empty
+let stream = Helpers.stream
+let status = Dream.status
+
+
+
+(* Headers *)
+
+let header = Dream.header
+let headers = Dream.headers
+let all_headers = Dream.all_headers
+let has_header = Dream.has_header
+let add_header = Dream.add_header
+let drop_header = Dream.drop_header
+let set_header = Dream.set_header
+
+
+
+(* Cookies *)
+
+let set_cookie = Cookie.set_cookie
+let drop_cookie = Cookie.drop_cookie
+let cookie = Cookie.cookie
+let all_cookies = Cookie.all_cookies
+
+
+
+(* Bodies *)
+
+let body = Dream.body
+let set_body = Dream.set_body
+let read = Dream.read
+let set_stream = Dream.set_stream
+let write = Dream.write
+let flush = Dream.flush
+let close_stream = Dream.close_stream
+type buffer = Stream.buffer
+type stream = Stream.stream
+let client_stream = Dream.client_stream
+let server_stream = Dream.server_stream
+let set_client_stream = Dream.set_client_stream
+let next = Dream.next
+let write_buffer = Dream.write_buffer
+
+
+
+(* JSON *)
+
+let origin_referrer_check = Origin_referrer_check.origin_referrer_check
+
+
+
+(* Forms *)
+
+type 'a form_result = 'a Form.form_result
+let form = Form.form ~now
+type multipart_form = Upload.multipart_form
+let multipart = Upload.multipart ~now
+type part = Upload.part
+let upload = Upload.upload
+let upload_part = Upload.upload_part
+type csrf_result = Csrf.csrf_result
+let csrf_token = Csrf.csrf_token ~now
+let verify_csrf_token = Csrf.verify_csrf_token ~now
+
+
+
+(* Templates *)
+
+let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
+  Tag.form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
 
+
+
+(* Middleware *)
+
+let no_middleware = Dream.no_middleware
+let pipeline = Dream.pipeline
+
+
+
+(* Routing *)
+
+let router = Router.router
+let get = Router.get
+let post = Router.post
+let put = Router.put
+let delete = Router.delete
+let head = Router.head
+let connect = Router.connect
+let options = Router.options
+let trace = Router.trace
+let patch = Router.patch
+let any = Router.any
+let not_found = Helpers.not_found
+let param = Router.param
+let scope = Router.scope
+let no_route = Router.no_route
+
+
+
+(* Static files *)
+
+let static = Static.static
+let from_filesystem = Static.from_filesystem
+let mime_lookup = Static.mime_lookup
+
+
+
+(* Sessions *)
+
+let session = Session.session
+let put_session = Session.put_session
+let all_session_values = Session.all_session_values
+let invalidate_session = Session.invalidate_session
+let memory_sessions = Session.memory_sessions
+let cookie_sessions = Session.cookie_sessions
+let sql_sessions = Sql_session.sql_sessions
+let session_id = Session.session_id
+let session_label = Session.session_label
+let session_expires_at = Session.session_expires_at
+
+
+
+(* Flash messages *)
+
+let flash_messages = Flash.flash_messages
+let flash = Flash.flash
+let put_flash = Flash.put_flash
+
+
+
+(* WebSockets *)
+
+type websocket = Dream.websocket
+let websocket = Dream.websocket
+let send = Dream.send
+let receive = Dream.receive
+let close_websocket = Dream.close_websocket
+
+
+
+(* GraphQL *)
+
+let graphql = Graphql.graphql
+let graphiql = Graphql.graphiql
+
+
+
+(* SQL *)
+
+let sql_pool = Sql.sql_pool
+let sql = Sql.sql
+
+
+
+(* Logging *)
+
+let logger = Log.logger
+let log = Log.convenience_log
+type ('a, 'b) conditional_log = ('a, 'b) Log.conditional_log
+type log_level = Log.log_level
 let error = default_log.error
 let warning = default_log.warning
 let info = default_log.info
 let debug = default_log.debug
+type sub_log = Log.sub_log = {
+  error : 'a. ('a, unit) conditional_log;
+  warning : 'a. ('a, unit) conditional_log;
+  info : 'a. ('a, unit) conditional_log;
+  debug : 'a. ('a, unit) conditional_log;
+}
+let sub_log = Log.sub_log
+let initialize_log = Log.initialize_log
+let set_log_level = Log.set_log_level
 
-include Dream__server.Router
-include Dream__unix.Static
 
-include Dream__cipher.Cipher
-include Dream__server.Cookie
 
-include Dream__server.Session
-include Dream__server.Session.Make (Ptime_clock)
-let sql_sessions = Dream__sql.Session.middleware
+(* Errors *)
 
-include Dream__server.Flash
+type error = Catch.error = {
+  condition : [
+    | `Response of Dream.response
+    | `String of string
+    | `Exn of exn
+  ];
+  layer : [
+    | `App
+    | `HTTP
+    | `HTTP2
+    | `TLS
+    | `WebSocket
+  ];
+  caused_by : [
+    | `Server
+    | `Client
+  ];
+  request : Dream.request option;
+  response : Dream.response option;
+  client : string option;
+  severity : Log.log_level;
+  will_send_response : bool;
+}
+type error_handler = Catch.error_handler
+let error_template = Error_handler.customize
+let debug_error_handler = Error_handler.debug_error_handler
+let catch = Catch.catch
 
-include Dream__server.Origin_referrer_check
-include Dream__server.Form
-include Dream__server.Upload
-include Dream__server.Csrf
 
-let content_length =
-  Dream__server.Content_length.content_length
 
-include Dream__graphql.Graphql
-include Dream__sql.Sql
+(* Servers *)
 
-include Dream__http.Http
+let run = Http.run
+let serve = Http.serve
+let lowercase_headers = Lowercase_headers.lowercase_headers
+let content_length = Content_length.content_length
+let with_site_prefix = Site_prefix.with_site_prefix
 
-include Dream__server.Lowercase_headers
-include Dream__server.Catch
-include Dream__server.Site_prefix
 
-let debug_error_handler =
-  Dream__http.Error_handler.debug_error_handler
-let error_template =
-  Dream__http.Error_handler.customize
 
-let () = Dream__cipher.Random.initialize Mirage_crypto_rng_lwt.initialize
+(* Web formats *)
 
-let random =
-  Dream__cipher.Random.random
+include Formats
 
-(* TODO Restore the ability to test with a prefix and re-enable the
-   corresponding tests. *)
-let test ?(prefix = "") handler request =
-  let app =
-    content_length
-    @@ with_site_prefix prefix
-    @@ handler
-  in
 
-  Lwt_main.run (app request)
 
-let log =
-  Dream__server.Log.convenience_log
+(* Cryptography *)
 
-include Dream__server.Tag
+let set_secret = Cipher.set_secret
+let random = Random.random
+let encrypt = Cipher.encrypt
+let decrypt = Cipher.decrypt
 
-let respond =
-  Dream__server.Helpers.respond
 
-let redirect =
-  Dream__server.Helpers.redirect
 
-let stream =
-  Dream__server.Helpers.stream
+(* Custom fields *)
 
-let empty =
-  Dream__server.Helpers.empty
+type 'a field = 'a Dream.field
+let new_field = Dream.new_field
+let field = Dream.field
+let set_field = Dream.set_field
 
-let not_found =
-  Dream__server.Helpers.not_found
 
-let now () = Ptime.to_float_s (Ptime.v (Ptime_clock.now_d_ps ()))
 
-let form = form ~now
-let multipart = multipart ~now
-let csrf_token = csrf_token ~now
-let verify_csrf_token = verify_csrf_token ~now
-let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
-  form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
+(* Testing. *)
+
+let request = Helpers.request_with_body
+
+(* TODO Restore the ability to test with a prefix and re-enable the
+   corresponding tests. *)
+let test ?(prefix = "") handler request =
+  let app =
+    Content_length.content_length
+    @@ Site_prefix.with_site_prefix prefix
+    @@ handler
+  in
+
+  Lwt_main.run (app request)
 
-let client =
-  Dream__server.Helpers.client
-let set_client =
-  Dream__server.Helpers.set_client
-let https =
-  Dream__server.Helpers.https
-let html =
-  Dream__server.Helpers.html
-let json =
-  Dream__server.Helpers.json
+let sort_headers = Dream.sort_headers
+let echo = Echo.echo
 
-include Dream__server.Query
 
-let request =
-  Dream__server.Helpers.request_with_body
 
-let response =
-  Dream__server.Helpers.response_with_body
+(* Deprecated helpers. *)
 
 let with_client client message =
-  set_client message client;
+  Helpers.set_client message client;
   message
 
 let with_method_ method_ message =
-  set_method_ message method_;
+  Dream.set_method_ message method_;
   message
 
 let with_version version message =
-  set_version message version;
+  Dream.set_version message version;
   message
 
 let with_path path message =
-  set_path message path;
+  Router.set_path message path;
   message
 
 let with_header name value message =
-  set_header message name value;
+  Dream.set_header message name value;
   message
 
 let with_body body message =
-  set_body message body;
+  Dream.set_body message body;
   message
 
 let with_stream message =
-  set_stream message;
+  Dream.set_stream message;
   message
 
-type 'a local = 'a field
-let new_local = new_field
-let local = field
+type 'a local = 'a Dream.field
+let new_local = Dream.new_field
+let local = Dream.field
 
 let with_local key value message =
-  set_field message key value;
+  Dream.set_field message key value;
   message
 
 let first message =
diff --git a/src/dream.mli b/src/dream.mli
index 7330168c..37b65814 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -176,6 +176,8 @@ val normalize_method : [< method_ ] -> method_
       Dream.normalize_method (`Method "GET") = `GET
     ]} *)
 
+
+
 (** {1:status_codes Status codes} *)
 
 type informational = [
@@ -786,8 +788,8 @@ type buffer =
    streaming" should be promoted to a top-level section, Streaming. *)
 type stream
 
-val server_stream : 'a message -> stream
 val client_stream : 'a message -> stream
+val server_stream : 'a message -> stream
 (* TODO Document that this is for middlewares that are transforming a response
    stream or a WebSocket. *)
 val set_client_stream : 'a message -> stream -> unit
diff --git a/src/sql/session.ml b/src/sql/session.ml
index 5bf01527..57b44929 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -198,5 +198,5 @@ let back_end lifetime = {
   send;
 }
 
-let middleware ?(lifetime = Session.two_weeks) =
+let sql_sessions ?(lifetime = Session.two_weeks) =
   Session.middleware (back_end lifetime)

From d1ba236f1d66bb5549ace53a92b11b10dbd36713 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 18 Dec 2021 18:12:18 +0300
Subject: [PATCH 098/312] Expose Stream API and reinterpret WebSockets

---
 src/dream.ml           |  39 ++++++----
 src/dream.mli          | 132 +++++++++++++++++++++------------
 src/graphql/graphql.ml |  58 +++++++--------
 src/http/http.ml       | 161 ++++++++++++++++-------------------------
 src/pure/inmost.ml     | 107 +++++----------------------
 src/pure/inmost.mli    |  33 +--------
 src/pure/stream.ml     |  22 +++++-
 src/pure/stream.mli    |   9 +--
 src/server/helpers.ml  |  41 +++++++++--
 9 files changed, 273 insertions(+), 329 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index a81bf0f9..0254ac88 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -119,6 +119,7 @@ let json = Helpers.json
 let redirect = Helpers.redirect
 let empty = Helpers.empty
 let stream = Helpers.stream
+let websocket = Helpers.websocket
 let status = Dream.status
 
 
@@ -149,17 +150,22 @@ let all_cookies = Cookie.all_cookies
 let body = Dream.body
 let set_body = Dream.set_body
 let read = Dream.read
-let set_stream = Dream.set_stream
 let write = Dream.write
 let flush = Dream.flush
-let close_stream = Dream.close_stream
+let close = Dream.close
 type buffer = Stream.buffer
 type stream = Stream.stream
 let client_stream = Dream.client_stream
 let server_stream = Dream.server_stream
 let set_client_stream = Dream.set_client_stream
-let next = Dream.next
-let write_buffer = Dream.write_buffer
+let set_server_stream = Dream.set_server_stream
+let read_stream = Stream.read
+let ready_stream = Stream.ready
+let write_stream = Stream.write
+let flush_stream = Stream.flush
+let ping_stream = Stream.ping
+let pong_stream = Stream.pong
+let close_stream = Stream.close
 
 
 
@@ -249,16 +255,6 @@ let put_flash = Flash.put_flash
 
 
 
-(* WebSockets *)
-
-type websocket = Dream.websocket
-let websocket = Dream.websocket
-let send = Dream.send
-let receive = Dream.receive
-let close_websocket = Dream.close_websocket
-
-
-
 (* GraphQL *)
 
 let graphql = Graphql.graphql
@@ -408,9 +404,22 @@ let with_body body message =
   message
 
 let with_stream message =
-  Dream.set_stream message;
   message
 
+let write_buffer ?(offset = 0) ?length message chunk =
+  let length =
+    match length with
+    | Some length -> length
+    | None -> Bigstringaf.length chunk - offset
+  in
+  let string = Bigstringaf.substring chunk ~off:offset ~len:length in
+  write ~kind:`Binary message string
+
+type websocket = Dream.response
+let send = write
+let receive = read
+let close_websocket = close
+
 type 'a local = 'a Dream.field
 let new_local = Dream.new_field
 let local = Dream.field
diff --git a/src/dream.mli b/src/dream.mli
index 37b65814..af2448dc 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -528,6 +528,22 @@ val stream :
           Dream.close_stream response)
     ]} *)
 
+val websocket :
+  ?headers:(string * string) list ->
+    (response -> unit promise) -> response promise
+(** Creates a fresh [101 Switching Protocols] response. Once this response is
+    returned to Dream's HTTP layer, the callback is passed a new
+    {!type-websocket}, and the application can begin using it. See example
+    {{:https://github.com/aantron/dream/tree/master/example/k-websocket#files}
+    [k-websocket]} \[{{:http://dream.as/k-websocket} playground}\].
+
+    {[
+      let my_handler = fun request ->
+        Dream.websocket (fun websocket ->
+          let%lwt () = Dream.send websocket "Hello, world!" in
+          Dream.close_websocket websocket);
+    ]} *)
+
 val status : response -> status
 (** Response {!type-status}. For example, [`OK]. *)
 
@@ -721,7 +737,7 @@ val all_cookies : request -> (string * string) list
 
 (** {1 Bodies} *)
 
-val body : 'a message -> string promise
+val body : request -> string promise
 (** Retrieves the entire body. See example
     {{:https://github.com/aantron/dream/tree/master/example/6-echo#files}
     [6-echo]}. *)
@@ -738,34 +754,32 @@ val with_body : string -> response -> response
 
 (** {2 Streaming} *)
 
-val read : request -> string option promise
+val read : 'a message -> string option promise
 (** Retrieves a body chunk. The chunk is not buffered, thus it can only be read
     once. See example
     {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
     [j-stream]}. *)
-
-val set_stream : response -> unit
-(** Makes the {!type-response} ready for stream writing with {!Dream.write}. You
-    should return it from your handler soon after — only one call to
-    {!Dream.write} will be accepted before then. See {!Dream.stream} for a more
-    convenient wrapper. *)
+(* TODO Document difference between receiving a request and receiving on a
+   WebSocket. *)
 
 (**/**)
 val with_stream : response -> response
 [@@ocaml.deprecated
-" Use Dream.set_stream instead. See
+" Use Dream.stream instead. See
   https://aantron.github.io/dream/#val-set_stream"]
 (**/**)
 
-val write : response -> string -> unit promise
+val write : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
 (** Streams out the string. The promise is fulfilled when the response can
     accept more writes. *)
+(* TODO Document clearly which of the writing functions can raise exceptions. *)
 
 val flush : response -> unit promise
 (** Flushes write buffers. Data is sent to the client. *)
 
-val close_stream : response -> unit promise
+val close : ?code:int -> 'a message -> unit promise
 (** Finishes the response stream. *)
+(* TODO Fix comment. *)
 
 (** {2 Low-level streaming} *)
 
@@ -794,10 +808,11 @@ val server_stream : 'a message -> stream
    stream or a WebSocket. *)
 val set_client_stream : 'a message -> stream -> unit
 (* TODO Normalize with with_stream, or add a separate with_server_stream. *)
+val set_server_stream : 'a message -> stream -> unit
 
 (* TODO Probably even close can be made optional. exn can be made optional. *)
 (* TODO Argument order? *)
-val next :
+val read_stream :
   stream ->
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
   close:(int -> unit) ->
@@ -811,10 +826,33 @@ val next :
     - [~close] if close is requested, and
     - [~exn] to report an exception. *)
 
+val ready_stream :
+  stream -> close:(int -> unit) -> (unit -> unit) -> unit
+
+val write_stream :
+  stream -> buffer -> int -> int -> bool -> bool -> close:(int -> unit) -> (unit -> unit) -> unit
+
+val flush_stream :
+  stream -> close:(int -> unit) -> (unit -> unit) -> unit
+
+val ping_stream :
+  stream -> buffer -> int -> int -> close:(int -> unit) -> (unit -> unit) -> unit
+
+val pong_stream :
+  stream -> buffer -> int -> int -> close:(int -> unit) -> (unit -> unit) -> unit
+
+val close_stream :
+  stream -> int -> unit
+
+(**/**)
 val write_buffer :
   ?offset:int -> ?length:int -> response -> buffer -> unit promise
-(** Streams out the {!buffer} slice. [~offset] defaults to zero. [~length]
-    defaults to the length of the {!buffer}, minus [~offset]. *)
+[@@ocaml.deprecated
+" Use Dream.write_stream. See
+  https://aantron.github.io/dream/#val-write_stream"]
+(**/**)
+
+(* TODO Ergonomics of this stream surface API. *)
 
 
 
@@ -1517,31 +1555,21 @@ val put_flash : request -> string -> string -> unit
 
 
 
-(** {1 WebSockets} *)
-
-type websocket
+(**/**)
+type websocket = response
+[@@ocaml.deprecated
+" Use Dream.stream. See
+  https://aantron.github.io/dream/#type-stream"]
 (** A WebSocket connection. See {{:https://tools.ietf.org/html/rfc6455} RFC
     6455} and
     {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API} MDN}. *)
+(**/**)
 
-val websocket :
-  ?headers:(string * string) list ->
-  (websocket -> unit promise) ->
-    response promise
-(** Creates a fresh [101 Switching Protocols] response. Once this response is
-    returned to Dream's HTTP layer, the callback is passed a new
-    {!type-websocket}, and the application can begin using it. See example
-    {{:https://github.com/aantron/dream/tree/master/example/k-websocket#files}
-    [k-websocket]} \[{{:http://dream.as/k-websocket} playground}\].
-
-    {[
-      let my_handler = fun request ->
-        Dream.websocket (fun websocket ->
-          let%lwt () = Dream.send websocket "Hello, world!" in
-          Dream.close_websocket websocket);
-    ]} *)
-
-val send : ?kind:[< `Text | `Binary ] -> websocket -> string -> unit promise
+(**/**)
+val send : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
+[@@ocaml.deprecated
+" Use Dream.write. See
+  https://aantron.github.io/dream/#val-write"]
 (** Sends a single message. The WebSocket is ready another message when the
     promise resolves.
 
@@ -1554,14 +1582,23 @@ val send : ?kind:[< `Text | `Binary ] -> websocket -> string -> unit promise
     {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/binaryType}
     MDN, [WebSocket.binaryType]}. *)
 
-val receive : websocket -> string option promise
+val receive : response -> string option promise
+[@@ocaml.deprecated
+" Use Dream.read. See
+  https://aantron.github.io/dream/#val-read"]
 (** Retrieves a message. If the WebSocket is closed before a complete message
     arrives, the result is [None]. *)
+(**/**)
 
-val close_websocket : ?code:int -> websocket -> unit promise
+(**/**)
+val close_websocket : ?code:int -> response -> unit promise
+[@@ocaml.deprecated
+" Use Dream.close. See
+  https://aantron.github.io/dream/#val-close"]
 (** Closes the WebSocket. [~code] is usually not necessary, but is needed for
     some protocols based on WebSockets. See
     {{:https://tools.ietf.org/html/rfc6455#section-7.4} RFC 6455 §7.4}. *)
+(**/**)
 
 
 
@@ -2356,7 +2393,9 @@ type 'a field
 
 (**/**)
 type 'a local = 'a field
-[@@ocaml.deprecated " Renamed to type Dream.field."]
+[@@ocaml.deprecated
+" Renamed to type Dream.field. See
+  https://aantron.github.io/dream/#type-field"]
 (**/**)
 
 val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
@@ -2366,7 +2405,9 @@ val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
 
 (**/**)
 val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
-[@@ocaml.deprecated " Renamed to Dream.new_field."]
+[@@ocaml.deprecated
+" Renamed to Dream.new_field. See
+  https://aantron.github.io/dream/#val-new_field"]
 (**/**)
 
 val field : 'b message -> 'a field -> 'a option
@@ -2374,22 +2415,19 @@ val field : 'b message -> 'a field -> 'a option
 
 (**/**)
 val local : 'b message -> 'a field -> 'a option
-[@@ocaml.deprecated " Renamed to Dream.field."]
+[@@ocaml.deprecated
+" Renamed to Dream.field. See
+  https://aantron.github.io/dream/#val-field"]
 (**/**)
 
 val set_field : 'b message -> 'a field -> 'a -> unit
 (** Sets the per-message variable to the value. *)
 
-(**/**)
-val set_field : 'b message -> 'a field -> 'a -> unit
-[@@ocaml.deprecated " Renamed to Dream.set_field."]
-(**/**)
-
 (**/**)
 val with_local : 'a field -> 'a -> 'b message -> 'b message
 [@@ocaml.deprecated
-" Use Dream.set_local instead. See
-  https://aantron.github.io/dream/#val-set_local"]
+" Use Dream.set_field instead. See
+  https://aantron.github.io/dream/#val-set_field"]
 (**/**)
 
 
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index b8f6b89c..8f1014b3 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -78,14 +78,10 @@ let run_query make_context schema request json =
 let operation_id json =
   Yojson.Basic.Util.(json |> member "id" |> to_string_option)
 
-let close_and_clean ?code subscriptions websocket =
-  match%lwt Dream.close_websocket ?code websocket with
-  | _ ->
-    Hashtbl.iter (fun _ close -> close ()) subscriptions;
-    Lwt.return_unit
-  | exception _ ->
-    Hashtbl.iter (fun _ close -> close ()) subscriptions;
-    Lwt.return_unit
+let close_and_clean ?code subscriptions response =
+  let%lwt () = Dream.close ?code response in
+  Hashtbl.iter (fun _ close -> close ()) subscriptions;
+  Lwt.return_unit
 
 let ack_message =
   `Assoc [
@@ -118,12 +114,12 @@ let complete_message id =
 
 (* TODO Take care to pass around the request Lwt.key in async, etc. *)
 (* TODO Test client complete racing against a stream. *)
-let handle_over_websocket make_context schema subscriptions request websocket =
+let handle_over_websocket make_context schema subscriptions request response =
   let rec loop inited =
-    match%lwt Dream.receive websocket with
+    match%lwt Dream.read response with
     | None ->
       log.info (fun log -> log ~request "GraphQL WebSocket closed by client");
-      close_and_clean subscriptions websocket
+      close_and_clean subscriptions response
     | Some message ->
 
     log.debug (fun log -> log ~request "Message '%s'" message);
@@ -132,13 +128,13 @@ let handle_over_websocket make_context schema subscriptions request websocket =
     match Yojson.Basic.from_string message with
     | exception _ ->
       log.warning (fun log -> log ~request "GraphQL message is not JSON");
-      close_and_clean subscriptions websocket ~code:4400
+      close_and_clean subscriptions response ~code:4400
     | json ->
 
     match Yojson.Basic.Util.(json |> member "type" |> to_string_option) with
     | None ->
       log.warning (fun log -> log ~request "GraphQL message lacks a type");
-      close_and_clean subscriptions websocket ~code:4400
+      close_and_clean subscriptions response ~code:4400
     | Some message_type ->
 
     match message_type with
@@ -146,24 +142,24 @@ let handle_over_websocket make_context schema subscriptions request websocket =
     | "connection_init" ->
       if inited then begin
         log.warning (fun log -> log ~request "Duplicate connection_init");
-        close_and_clean subscriptions websocket ~code:4429
+        close_and_clean subscriptions response ~code:4429
       end
       else begin
-        let%lwt () = Dream.send websocket ack_message in
+        let%lwt () = Dream.write response ack_message in
         loop true
       end
 
     | "complete" ->
       if not inited then begin
         log.warning (fun log -> log ~request "complete before connection_init");
-        close_and_clean subscriptions websocket ~code:4401
+        close_and_clean subscriptions response ~code:4401
       end
       else begin
         match operation_id json with
         | None ->
           log.warning (fun log ->
             log ~request "client complete: operation id missing");
-          close_and_clean subscriptions websocket ~code:4400
+          close_and_clean subscriptions response ~code:4400
         | Some id ->
           begin match Hashtbl.find_opt subscriptions id with
           | None -> ()
@@ -176,14 +172,14 @@ let handle_over_websocket make_context schema subscriptions request websocket =
       if not inited then begin
         log.warning (fun log ->
           log ~request "subscribe before connection_init");
-        close_and_clean subscriptions websocket ~code:4401
+        close_and_clean subscriptions response ~code:4401
       end
       else begin
         match operation_id json with
         | None ->
           log.warning (fun log ->
             log ~request "subscribe: operation id missing");
-          close_and_clean subscriptions websocket ~code:4400
+          close_and_clean subscriptions response ~code:4400
         | Some id ->
 
         let payload = json |> Yojson.Basic.Util.member "payload" in
@@ -197,13 +193,13 @@ let handle_over_websocket make_context schema subscriptions request websocket =
               log.warning (fun log ->
                 log ~request
                   "subscribe: error %s" (Yojson.Basic.to_string json));
-              Dream.send websocket (error_message id json)
+              Dream.write response (error_message id json)
 
             (* It's not clear that this case ever occurs, because graphql-ws is
                only used for subscriptions, at the protocol level. *)
             | Ok (`Response json) ->
-              let%lwt () = Dream.send websocket (data_message id json) in
-              let%lwt () = Dream.send websocket (complete_message id) in
+              let%lwt () = Dream.write response (data_message id json) in
+              let%lwt () = Dream.write response (complete_message id) in
               Lwt.return_unit
 
             | Ok (`Stream (stream, close)) ->
@@ -211,7 +207,7 @@ let handle_over_websocket make_context schema subscriptions request websocket =
               | true ->
                 log.warning (fun log ->
                   log ~request "subscribe: duplicate operation id");
-                close_and_clean subscriptions websocket ~code:4409
+                close_and_clean subscriptions response ~code:4409
               | false ->
 
               Hashtbl.replace subscriptions id close;
@@ -220,15 +216,15 @@ let handle_over_websocket make_context schema subscriptions request websocket =
               let%lwt () =
                 stream |> Lwt_stream.iter_s (function
                   | Ok json ->
-                    Dream.send websocket (data_message id json)
+                    Dream.write response (data_message id json)
                   | Error json ->
                     log.warning (fun log ->
                       log ~request
                         "Subscription: error %s" (Yojson.Basic.to_string json));
-                    Dream.send websocket (error_message id json))
+                    Dream.write response (error_message id json))
               in
 
-              let%lwt () = Dream.send websocket (complete_message id) in
+              let%lwt () = Dream.write response (complete_message id) in
               Hashtbl.remove subscriptions id;
               Lwt.return_unit
 
@@ -244,12 +240,12 @@ let handle_over_websocket make_context schema subscriptions request websocket =
 
             try%lwt
               let%lwt () =
-                Dream.send
-                  websocket
+                Dream.write
+                  response
                   (error_message id (make_error "Internal Server Error"))
               in
               if !subscribed then
-                Dream.send websocket (complete_message id)
+                Dream.write response (complete_message id)
               else
                 Lwt.return_unit
             with _ ->
@@ -262,7 +258,7 @@ let handle_over_websocket make_context schema subscriptions request websocket =
     | message_type ->
       log.warning (fun log ->
         log ~request "Unknown WebSocket message type '%s'" message_type);
-      close_and_clean subscriptions websocket ~code:4400
+      close_and_clean subscriptions response ~code:4400
   in
 
   loop false
@@ -281,7 +277,7 @@ let graphql make_context schema = fun request ->
     and protocol = Dream.header request "Sec-WebSocket-Protocol" in
     begin match upgrade, protocol with
     | Some "websocket", Some "graphql-transport-ws" ->
-      Dream.websocket
+      Helpers.websocket
         ~headers:["Sec-WebSocket-Protocol", "graphql-transport-ws"]
         (handle_over_websocket make_context schema (Hashtbl.create 16) request)
     | _ ->
diff --git a/src/http/http.ml b/src/http/http.ml
index 20d6f354..f6384c07 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -38,7 +38,7 @@ let sha1 s =
 let websocket_log =
   Log.sub_log "dream.websocket"
 
-let websocket_handler user's_websocket_handler socket =
+let websocket_handler response socket =
 
   (* Queue of received frames. There doesn't appear to be a nice way to achieve
      backpressure with the current API of websocket/af, so that will have to be
@@ -187,21 +187,6 @@ let websocket_handler user's_websocket_handler socket =
 
   let bytes_since_flush = ref 0 in
 
-  (* TODO Not a correct implementation. Need to test moving the flush logic
-     from [write] to [ready], essentially. Alternatively, can use a pipe and its
-     logic for turning a writer into a reader. The memory impact is probably the
-     same. However, this is best done after the duplex stream clarification
-     commit, since that will change which streams do what in responses. It will
-     probably force usage of pipes anyway, so that will make piggy-backing on
-     pipes the natural solution. *)
-  (* TODO Can probably also remove val Stream.writer at that point. *)
-  let ready ~close ok =
-    if !closed then
-      close !close_code
-    else
-      ok ()
-  in
-
   let flush ~close ok =
     bytes_since_flush := 0;
     if !closed then
@@ -210,56 +195,6 @@ let websocket_handler user's_websocket_handler socket =
       Websocketaf.Wsd.flushed socket ok
   in
 
-  let write buffer offset length binary fin ~close ok =
-    (* Until https://github.com/anmonteiro/websocketaf/issues/33. *)
-    if not fin then
-      websocket_log.error (fun log ->
-        log "Non-FIN frames not yet supported");
-    let kind = if binary then `Binary else `Text in
-    if !closed then
-      close !close_code
-    else begin
-      Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
-      bytes_since_flush := !bytes_since_flush + length;
-      if !bytes_since_flush >= 4096 then
-        flush ~close ok
-      else
-        ok ()
-    end
-  in
-
-  let ping _buffer _offset length ~close ok =
-    if length > 125 then
-      raise (Failure "Ping payload cannot exceed 125 bytes");
-    (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
-    if length > 0 then
-      websocket_log.warning (fun log ->
-        log "Ping with non-empty payload not yet supported");
-    if !closed then
-      close !close_code
-    else begin
-      Websocketaf.Wsd.send_ping socket;
-      ok ()
-    end
-  in
-
-  let pong _buffer _offset length ~close ok =
-    (* TODO Is there any way for the peer to send a ping payload with more than
-       125 bytes, forcing a too-large pong and an exception? *)
-    if length > 125 then
-      raise (Failure "Pong payload cannot exceed 125 bytes");
-    (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
-    if length > 0 then
-      websocket_log.warning (fun log ->
-        log "Pong with non-empty payload not yet supported");
-    if !closed then
-      close !close_code
-    else begin
-      Websocketaf.Wsd.send_pong socket;
-      ok ()
-    end
-  in
-
   let close code =
     if not !closed then begin
       (* TODO Really need to work out the "close handshake" and how it is
@@ -269,20 +204,60 @@ let websocket_handler user's_websocket_handler socket =
     end
   in
 
-  let reader = Stream.reader ~read ~close
-  and writer = Stream.writer ~ready ~write ~flush ~ping ~pong ~close in
-  let websocket = Stream.stream reader writer in
-  (* TODO Change WebSockets to use two pipes in the response body, rather than
-     a weird stream hanging out in the heap. That way, a client and server can
-     immediately communicate with each other if they are in process, without the
-     need to interpet the WebSocket response with an HTTP layer. This will also
-     simplify the WebSocket writing code, as this HTTP adapter code will read
-     from a pipe rather than implement a writer from scratch. At that point,
-     Stream.writer can be removed from stream.mli. *)
-
-  (* TODO Needs error handling like the top-level app has! *)
-  Lwt.async (fun () ->
-    user's_websocket_handler websocket);
+  let reader = Stream.reader ~read ~close in
+  Stream.forward reader (Dream.client_stream response);
+
+  let rec outgoing_loop () =
+    Stream.read
+      (Dream.client_stream response)
+      ~data:(fun buffer offset length binary fin ->
+        (* Until https://github.com/anmonteiro/websocketaf/issues/33. *)
+        if not fin then
+          websocket_log.error (fun log ->
+            log "Non-FIN frames not yet supported");
+        let kind = if binary then `Binary else `Text in
+        if !closed then
+          close !close_code
+        else begin
+          Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
+          bytes_since_flush := !bytes_since_flush + length;
+          if !bytes_since_flush >= 4096 then
+            flush ~close outgoing_loop
+          else
+            outgoing_loop ()
+        end)
+      ~close
+      ~flush:(fun () -> flush ~close outgoing_loop)
+      ~ping:(fun _buffer _offset length ->
+        if length > 125 then
+          raise (Failure "Ping payload cannot exceed 125 bytes");
+        (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
+        if length > 0 then
+          websocket_log.warning (fun log ->
+            log "Ping with non-empty payload not yet supported");
+        if !closed then
+          close !close_code
+        else begin
+          Websocketaf.Wsd.send_ping socket;
+          outgoing_loop ()
+        end)
+      ~pong:(fun _buffer _offset length ->
+        (* TODO Is there any way for the peer to send a ping payload with more
+           than 125 bytes, forcing a too-large pong and an exception? *)
+        if length > 125 then
+          raise (Failure "Pong payload cannot exceed 125 bytes");
+        (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
+        if length > 0 then
+          websocket_log.warning (fun log ->
+            log "Pong with non-empty payload not yet supported");
+        if !closed then
+          close !close_code
+        else begin
+          Websocketaf.Wsd.send_pong socket;
+          outgoing_loop ()
+        end)
+  in
+  outgoing_loop ();
 
   Websocketaf.Server_connection.{frame; eof}
 
@@ -394,29 +369,15 @@ let wrap_handler
           Lwt.return_unit
         in
 
-        match Dream.is_websocket response with
-        | None ->
-
+        if not (Helpers.is_websocket response) then
           forward_response response
-
-        | Some user's_websocket_handler ->
-
+        else begin
           let error_handler =
             Error_handler.websocket user's_error_handler request response in
 
-          (* TODO This needs to be done in a more disciplined fashion. *)
-          (* TODO This could be considerably simplified using just a mutable
-             request_id field in requests. *)
-          let user's_websocket_handler websocket =
-            Lwt.with_value
-              Log.id_lwt_key
-              (Log.get_request_id ~request ())
-              (fun () -> user's_websocket_handler websocket)
-          in
-
           let proceed () =
             Websocketaf.Server_connection.create_websocket
-              ~error_handler (websocket_handler user's_websocket_handler)
+              ~error_handler (websocket_handler response)
             |> Gluten.make (module Websocketaf.Server_connection)
             |> upgrade
           in
@@ -433,6 +394,7 @@ let wrap_handler
                 user's_error_handler request response error_string
             in
             forward_response response
+        end
 
       end
       @@ fun exn ->
@@ -521,15 +483,14 @@ let wrap_handler_h2
           Lwt.return_unit
         in
 
-        match Dream.is_websocket response with
-        | None ->
+        if not (Helpers.is_websocket response) then
           forward_response response
 
         (* TODO DOC H2 appears not to support WebSocket upgrade at present.
            RFC 8441. *)
         (* TODO DOC Do we need a CONNECT method? Do users need to be informed of
            this? *)
-        | Some _user's_websocket_handler ->
+        else
           Lwt.return_unit
 
       end
diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 24ef3019..9441f2d2 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -17,8 +17,6 @@ struct
 end
 module Fields = Hmap.Make (Custom_field_metadata)
 
-type websocket = Stream.stream
-
 type request = client message
 and response = server message
 
@@ -43,7 +41,6 @@ and client = {
 
 and server = {
   status : status;
-  websocket : (websocket -> unit Lwt.t) option;
 }
 
 type 'a promise = 'a Lwt.t
@@ -131,10 +128,8 @@ let server_stream message =
 let set_client_stream message client_stream =
   message.client_stream <- client_stream
 
-(* TODO Pending the dream.mli interface reorganization for the new stream
-   API. *)
-let next =
-  Stream.read
+let set_server_stream message server_stream =
+  message.server_stream <- server_stream
 
 (* Create a fresh ref. The reason this field has a ref is because it might get
    replaced when a body is forced read. That's not what's happening here - we
@@ -160,46 +155,25 @@ let set_body message body =
   in
   message.server_stream <- body
 
-(* TODO The critical piece: the pipe should be split between the client and
-   server streams. adapt.ml should be reading from the client stream. *)
-let set_stream message =
-  let reader, writer = Stream.pipe () in
-  let client_stream = Stream.stream reader Stream.no_writer in
-  let server_stream = Stream.stream Stream.no_reader writer in
-  message.client_stream <- client_stream;
-  message.server_stream <- server_stream
-
 (* TODO Need to expose FIN. However, it can't have any effect even on
    WebSockets, because websocket/af does not offer the ability to pass FIN. It
    is hardcoded to true. *)
-(* TODO Also expose binary/text. *)
-let write message chunk =
+(* TODO Also expose binary/text. What should be the default? *)
+let write ?kind message chunk =
+  let binary =
+    match kind with
+    | None | Some `Text -> false
+    | Some `Binary -> true
+  in
   let promise, resolver = Lwt.wait () in
   let length = String.length chunk in
   let buffer = Bigstringaf.of_string ~off:0 ~len:length chunk in
   (* TODO Better handling of close? But it can't even occur with http/af. *)
   Stream.write
     message.server_stream
-    buffer 0 length true false
+    buffer 0 length binary false
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
-    (Lwt.wakeup_later resolver);
-  promise
-
-let write_buffer ?(offset = 0) ?length message chunk =
-  let promise, resolver = Lwt.wait () in
-  let length =
-    match length with
-    | Some length -> length
-    | None -> Bigstringaf.length chunk - offset
-  in
-  (* TODO Proper handling of close. *)
-  (* TODO As above, properly expose FIN. *)
-  (* TODO Also expose binary/text. *)
-  Stream.write
-    message.server_stream
-    chunk offset length true false
-    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
-    (Lwt.wakeup_later resolver);
+    (fun () -> Lwt.wakeup_later resolver ());
   promise
 
 (* TODO How are remote closes actually handled? There is no way for http/af to
@@ -212,14 +186,11 @@ let flush message =
     (Lwt.wakeup_later resolver);
   promise
 
-let close_stream message =
-  Stream.close message.server_stream 1000;
+(* TODO Should close even be promise-valued? *)
+let close ?(code = 1000) message =
+  Stream.close message.server_stream code;
   Lwt.return_unit
 
-(* TODO Rename. *)
-let is_websocket response =
-  response.specific.websocket
-
 
 
 type 'a field = 'a Fields.key
@@ -260,7 +231,7 @@ let request
   (* This function is used for debugging, so it's fine to allocate a fake body
      and then immediately replace it. *)
 
-  let request = {
+  {
     specific = {
       (* TODO Is there a better fake error handler? Maybe this function should
          come after the response constructors? *)
@@ -272,9 +243,7 @@ let request
     client_stream;
     server_stream;
     fields = Fields.empty;
-  } in
-
-  request
+  }
 
 let response
     ?status ?code ?(headers = []) client_stream server_stream =
@@ -286,56 +255,16 @@ let response
     | None, Some code -> Status.int_to_status code
   in
 
-  let response = {
+  {
     specific = {
       status;
-      websocket = None;
     };
     headers;
     client_stream;
     server_stream;
     (* TODO This fully dead stream should be preallocated. *)
     fields = Fields.empty;
-  } in
-
-  response
-
-let websocket ?headers handler =
-  (* TODO Simplify stream creation. *)
-  let client_stream = Stream.(stream empty no_writer)
-  and server_stream = Stream.(stream no_reader no_writer) in
-  let response =
-    response
-      ?headers ~status:`Switching_Protocols client_stream server_stream in
-  let response =
-    {response with specific =
-      {response.specific with websocket = Some handler}}
-  in
-  Lwt.return response
-
-let send ?kind websocket message =
-  let binary =
-    match kind with
-    | None | Some `Text -> false
-    | Some `Binary -> true
-  in
-  let promise, resolver = Lwt.wait () in
-  let length = String.length message in
-  Stream.write
-    websocket
-    (Bigstringaf.of_string ~off:0 ~len:length message) 0 length
-    binary true
-    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
-    (Lwt.wakeup_later resolver);
-  (* TODO The API will likely have to change to report closing. *)
-  promise
-
-let receive websocket =
-  Stream.read_convenience websocket
-
-let close_websocket ?(code = 1000) websocket =
-  Stream.close websocket code;
-  Lwt.return_unit
+  }
 
 let no_middleware handler request =
   handler request
diff --git a/src/pure/inmost.mli b/src/pure/inmost.mli
index d57b0b9b..e6089e82 100644
--- a/src/pure/inmost.mli
+++ b/src/pure/inmost.mli
@@ -70,27 +70,14 @@ val sort_headers : (string * string) list -> (string * string) list
 
 val body : 'a message -> string promise
 val set_body : response -> string -> unit
-val read : request -> string option promise
-val set_stream : 'a message -> unit
-(* TODO Rename set_stream, it makes kind of no sense now. *)
-val write : response -> string -> unit promise
+val read : 'a message -> string option promise
+val write : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
 val flush : response -> unit promise
-val close_stream : response -> unit promise
-(* TODO This will need to read different streams depending on whether it is
-   passed a request or a response. *)
+val close : ?code:int -> 'a message -> unit promise
 val client_stream : 'a message -> stream
 val server_stream : 'a message -> stream
 val set_client_stream : 'a message -> stream -> unit
-val next :
-  stream ->
-  data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(int -> unit) ->
-  flush:(unit -> unit) ->
-  ping:(buffer -> int -> int -> unit) ->
-  pong:(buffer -> int -> int -> unit) ->
-    unit
-val write_buffer :
-  ?offset:int -> ?length:int -> response -> buffer -> unit promise
+val set_server_stream : 'a message -> stream -> unit
 
 
 
@@ -99,18 +86,6 @@ val pipeline : middleware list -> middleware
 
 
 
-type websocket = stream
-val websocket :
-  ?headers:(string * string) list ->
-  (websocket -> unit promise) ->
-    response promise
-val send : ?kind:[< `Text | `Binary ] -> websocket -> string -> unit promise
-val receive : websocket -> string option promise
-val close_websocket : ?code:int -> websocket -> unit promise
-val is_websocket : response -> (websocket -> unit promise) option
-
-
-
 type 'a field
 val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
 val field : 'b message -> 'a field -> 'a option
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index ee76347a..89a38501 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -77,9 +77,6 @@ let no_writer = {
 let reader ~read ~close =
   {read; close}
 
-let writer ~ready ~write ~flush ~ping ~pong ~close =
-  {ready; write; flush; ping; pong; close}
-
 let empty =
   reader
     ~read:(fun ~data:_ ~close ~flush:_ ~ping:_ ~pong:_ -> close 1000)
@@ -304,6 +301,25 @@ let pipe () =
 
   (reader, writer)
 
+let forward (reader : reader) stream =
+  let rec loop () =
+    stream.writer.ready
+      ~close:reader.close
+      (fun () ->
+        reader.read
+          ~data:(fun buffer offset length binary fin ->
+            stream.writer.write
+              buffer offset length binary fin ~close:reader.close loop)
+          ~close:stream.writer.close
+          ~flush:(fun () ->
+            stream.writer.flush ~close:reader.close loop)
+          ~ping:(fun buffer offset length ->
+            stream.writer.ping buffer offset length ~close:reader.close loop)
+          ~pong:(fun buffer offset length ->
+            stream.writer.pong buffer offset length ~close:reader.close loop))
+  in
+  loop ()
+
 let read_convenience stream =
   let promise, resolver = Lwt.wait () in
   let close _code = Lwt.wakeup_later resolver None in
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index a525f9dc..19fdcf0f 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -54,14 +54,7 @@ val pipe : unit -> reader * writer
     writing functions. For example, calling {!Stream.flush} on a pipe will cause
     the reader to call its [~flush] callback. *)
 
-val writer :
-  ready:write ->
-  write:(buffer -> int -> int -> bool -> bool -> write) ->
-  flush:write ->
-  ping:(buffer -> int -> int -> write) ->
-  pong:(buffer -> int -> int -> write) ->
-  close:(int -> unit) ->
-    writer
+val forward : reader -> stream -> unit
 
 val no_reader : reader
 
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index e62ccf40..27c48c4f 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -110,15 +110,42 @@ let redirect ?status ?code ?headers _request location =
   Dream.set_header response "Location" location;
   Lwt.return response
 
-let stream ?status ?code ?headers f =
-  (* TODO Streams. *)
-  let client_stream = Stream.(stream empty no_writer)
-  and server_stream = Stream.(stream no_reader no_writer) in
+let stream ?status ?code ?headers callback =
+  let reader, writer = Stream.pipe () in
+  let client_stream = Stream.stream reader Stream.no_writer
+  and server_stream = Stream.stream Stream.no_reader writer in
   let response =
     Dream.response ?status ?code ?headers client_stream server_stream in
-  Dream.set_stream response;
-  (* TODO Should set up an error handler for this. *)
-  Lwt.async (fun () -> f response);
+  (* TODO Should set up an error handler for this. YES. *)
+  (* TODO Make sure the request id is propagated to the callback. *)
+  let wrapped_callback _ = Lwt.async (fun () -> callback response) in
+  Stream.ready server_stream ~close:wrapped_callback wrapped_callback;
+  Lwt.return response
+
+let websocket_field =
+  Dream.new_field
+    ~name:"dream.websocket"
+    ~show_value:(Printf.sprintf "%b")
+    ()
+
+let is_websocket response =
+  match Dream.field response websocket_field with
+  | Some true -> true
+  | _ -> false
+
+(* TODO Mark the request as a WebSocket request for HTTP. *)
+let websocket ?headers callback =
+  let in_reader, in_writer = Stream.pipe ()
+  and out_reader, out_writer = Stream.pipe () in
+  let client_stream = Stream.stream out_reader in_writer
+  and server_stream = Stream.stream in_reader out_writer in
+  let response =
+    Dream.response
+      ~status:`Switching_Protocols ?headers client_stream server_stream in
+  Dream.set_field response websocket_field true;
+  (* TODO Make sure the request id is propagated to the callback. *)
+  let wrapped_callback _ = Lwt.async (fun () -> callback response) in
+  Stream.ready server_stream ~close:wrapped_callback wrapped_callback;
   Lwt.return response
 
 let empty ?headers status =

From a680f4be417ea4d6f085a4d6e0baadba31adad7d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 18 Dec 2021 22:20:15 +0300
Subject: [PATCH 099/312] Catch up most of the examples

---
 example/3-router/router.ml                     |  2 +-
 example/7-template/template.eml.ml             |  2 +-
 example/8-debug/debug.ml                       |  2 +-
 example/9-error/error.eml.ml                   | 17 +++++------------
 example/c-cookie/cookie.ml                     | 13 +++++++------
 example/j-stream/stream.ml                     |  2 +-
 example/k-websocket/websocket.eml.ml           | 10 +++++-----
 example/r-advanced-template/template.eml.re    |  6 +++---
 example/r-template-files/server.re             |  2 +-
 .../r-template-stream/template_stream.eml.re   |  2 +-
 example/w-advanced-template/template.eml.ml    | 12 ++++++------
 example/w-chat/chat.eml.ml                     | 18 +++++++++---------
 example/w-flash/flash.eml.ml                   |  2 +-
 example/w-live-reload/live_reload.ml           |  7 +++----
 example/w-stress-response/stress_response.ml   |  2 +-
 .../stress_websocket_send.eml.ml               |  6 +++---
 example/w-template-files/server.ml             |  2 +-
 .../w-template-stream/template_stream.eml.ml   |  2 +-
 example/z-playground/server/playground.ml      | 14 +++++++-------
 19 files changed, 58 insertions(+), 65 deletions(-)

diff --git a/example/3-router/router.ml b/example/3-router/router.ml
index f2d45dae..0c0c410f 100644
--- a/example/3-router/router.ml
+++ b/example/3-router/router.ml
@@ -9,7 +9,7 @@ let () =
 
     Dream.get "/echo/:word"
       (fun request ->
-        Dream.html (Dream.param "word" request));
+        Dream.html (Dream.param request "word"));
 
   ]
   @@ Dream.not_found
diff --git a/example/7-template/template.eml.ml b/example/7-template/template.eml.ml
index f70a1129..27e7e351 100644
--- a/example/7-template/template.eml.ml
+++ b/example/7-template/template.eml.ml
@@ -12,7 +12,7 @@ let () =
 
     Dream.get "/:word"
       (fun request ->
-        Dream.param "word" request
+        Dream.param request "word"
         |> render
         |> Dream.html);
 
diff --git a/example/8-debug/debug.ml b/example/8-debug/debug.ml
index 24bd25c3..b1aed12e 100644
--- a/example/8-debug/debug.ml
+++ b/example/8-debug/debug.ml
@@ -1,5 +1,5 @@
 let () =
-  Dream.run ~debug:true
+  Dream.run ~error_handler:Dream.debug_error_handler
   @@ Dream.logger
   @@ Dream.router [
 
diff --git a/example/9-error/error.eml.ml b/example/9-error/error.eml.ml
index f3565c1e..515091cf 100644
--- a/example/9-error/error.eml.ml
+++ b/example/9-error/error.eml.ml
@@ -3,23 +3,16 @@ let my_error_template _error debug_info suggested_response =
   let code = Dream.status_to_int status
   and reason = Dream.status_to_string status in
 
-  suggested_response
-  |> Dream.with_header "Content-Type" Dream.text_html
-  |> Dream.with_body begin
+  Dream.set_header suggested_response "Content-Type" Dream.text_html;
+  Dream.set_body suggested_response begin
     <html>
     <body>
       <h1><%i code %> <%s reason %></h1>
-
-%     begin match debug_info with
-%     | None -> ()
-%     | Some debug_info ->
-        <pre><%s debug_info %></pre>
-%     end;
-
+      <pre><%s debug_info %></pre>
     </body>
     </html>
-  end
-  |> Lwt.return
+  end;
+  Lwt.return suggested_response
 
 let () =
   Dream.run ~error_handler:(Dream.error_template my_error_template)
diff --git a/example/c-cookie/cookie.ml b/example/c-cookie/cookie.ml
index 197ef757..73435ada 100644
--- a/example/c-cookie/cookie.ml
+++ b/example/c-cookie/cookie.ml
@@ -1,15 +1,16 @@
 let () =
-  Dream.run ~secret:"foo"
+  Dream.run
+  @@ Dream.set_secret "foo"
   @@ Dream.logger
   @@ fun request ->
 
-    match Dream.cookie "ui.language" request with
+    match Dream.cookie request "ui.language" with
     | Some value ->
       Printf.ksprintf
         Dream.html "Your preferred language is %s!" (Dream.html_escape value)
 
     | None ->
-      Dream.response "Set language preference; come again!"
-      |> Dream.add_header "Content-Type" Dream.text_html
-      |> Dream.set_cookie "ui.language" "ut-OP" request
-      |> Lwt.return
+      let response = Dream.response "Set language preference; come again!" in
+      Dream.add_header response "Content-Type" Dream.text_html;
+      Dream.set_cookie response "ui.language" "ut-OP" request;
+      Lwt.return response
diff --git a/example/j-stream/stream.ml b/example/j-stream/stream.ml
index e16d30d6..3f9c2477 100644
--- a/example/j-stream/stream.ml
+++ b/example/j-stream/stream.ml
@@ -2,7 +2,7 @@ let echo request response =
   let rec loop () =
     match%lwt Dream.read request with
     | None ->
-      Dream.close_stream response
+      Dream.close response
     | Some chunk ->
       let%lwt () = Dream.write response chunk in
       let%lwt () = Dream.flush response in
diff --git a/example/k-websocket/websocket.eml.ml b/example/k-websocket/websocket.eml.ml
index 3fdff498..1166c93e 100644
--- a/example/k-websocket/websocket.eml.ml
+++ b/example/k-websocket/websocket.eml.ml
@@ -28,13 +28,13 @@ let () =
 
     Dream.get "/websocket"
       (fun _ ->
-        Dream.websocket (fun websocket ->
-          match%lwt Dream.receive websocket with
+        Dream.websocket (fun response ->
+          match%lwt Dream.read response with
           | Some "Hello?" ->
-            let%lwt () = Dream.send websocket "Good-bye!" in
-            Dream.close_websocket websocket
+            let%lwt () = Dream.write response "Good-bye!" in
+            Dream.close response
           | _ ->
-            Dream.close_websocket websocket));
+            Dream.close response));
 
   ]
   @@ Dream.not_found
diff --git a/example/r-advanced-template/template.eml.re b/example/r-advanced-template/template.eml.re
index 66715bab..94ad8e49 100644
--- a/example/r-advanced-template/template.eml.re
+++ b/example/r-advanced-template/template.eml.re
@@ -7,7 +7,7 @@ let render_home = tasks => {
         <% if (complete) { %>
           complete!
         <% } else { %>
-          not complete 
+          not complete
         <% }; %>
       </p>
     <% }); %>
@@ -21,7 +21,7 @@ let render_task = (tasks, task) => {
   <html>
   <body>
 %   (switch (List.find_opt(((task_, _)) => task == task_, tasks)) {
-%   | Some((name, complete)) => 
+%   | Some((name, complete)) =>
       <h1>TODO task: <%s name %>, complete: <%B complete %></h1>
 %   | None =>
       <h1>Task not found!</h1>
@@ -43,7 +43,7 @@ let () =
   @@ Dream.router([
     Dream.get("/", _ => render_home(tasks) |> Dream.html),
     Dream.get("/:task", request =>
-      Dream.param("task", request) |> render_task(tasks) |> Dream.html
+      Dream.param(request, "task") |> render_task(tasks) |> Dream.html
     ),
   ])
   @@ Dream.not_found;
diff --git a/example/r-template-files/server.re b/example/r-template-files/server.re
index 21bd77f9..656b6c13 100644
--- a/example/r-template-files/server.re
+++ b/example/r-template-files/server.re
@@ -3,7 +3,7 @@ let () =
   Dream.logger @@
   Dream.router([
     Dream.get("/:word", request =>
-      Dream.param("word", request) |> Template.render |> Dream.html
+      Dream.param(request, "word") |> Template.render |> Dream.html
     ),
   ]) @@
   Dream.not_found;
diff --git a/example/r-template-stream/template_stream.eml.re b/example/r-template-stream/template_stream.eml.re
index cf86b796..e51238b3 100644
--- a/example/r-template-stream/template_stream.eml.re
+++ b/example/r-template-stream/template_stream.eml.re
@@ -15,7 +15,7 @@ let render = response => {
     </body>
     </html>
   };
-  Dream.close_stream(response)
+  Dream.close(response)
 };
 
 let () =
diff --git a/example/w-advanced-template/template.eml.ml b/example/w-advanced-template/template.eml.ml
index 45713efa..6d17bd81 100644
--- a/example/w-advanced-template/template.eml.ml
+++ b/example/w-advanced-template/template.eml.ml
@@ -8,7 +8,7 @@ let render_home tasks =
         <% if complete then ( %>
           complete!
         <% ) else ( %>
-          not complete 
+          not complete
         <% ); %>
       </p>
     <% end; %>
@@ -20,8 +20,8 @@ let render_home tasks =
 let render_task tasks task =
   <html>
   <body>
-%   (match List.find_opt (fun (task_, _) -> task = task_) tasks with 
-%   | Some (name, complete) -> 
+%   (match List.find_opt (fun (task_, _) -> task = task_) tasks with
+%   | Some (name, complete) ->
       <h1>TODO task: <%s name %>, complete: <%B complete %></h1>
 %   | None -> begin
       <h1>Task not found!</h1>
@@ -34,7 +34,7 @@ let tasks = [
   ("create examples", true);
   ("publish website", true);
   ("profit", false);
-] 
+]
 
 let () =
   Dream.run
@@ -44,11 +44,11 @@ let () =
       (fun _ ->
         render_home tasks
         |> Dream.html);
-        
+
 
     Dream.get "/:task"
       (fun request ->
-        Dream.param "task" request
+        Dream.param request "task"
         |> render_task tasks
         |> Dream.html);
 
diff --git a/example/w-chat/chat.eml.ml b/example/w-chat/chat.eml.ml
index 3a462b2a..28d15b52 100644
--- a/example/w-chat/chat.eml.ml
+++ b/example/w-chat/chat.eml.ml
@@ -30,34 +30,34 @@ let home =
   </body>
   </html>
 
-let clients =
+let clients : (int, Dream.response) Hashtbl.t =
   Hashtbl.create 5
 
-let connect =
+let track =
   let last_client_id = ref 0 in
   fun websocket ->
     last_client_id := !last_client_id + 1;
     Hashtbl.replace clients !last_client_id websocket;
     !last_client_id
 
-let disconnect client_id =
+let forget client_id =
   Hashtbl.remove clients client_id
 
 let send message =
   Hashtbl.to_seq_values clients
   |> List.of_seq
-  |> Lwt_list.iter_p (fun client -> Dream.send client message)
+  |> Lwt_list.iter_p (fun client -> Dream.write client message)
 
-let handle_client websocket =
-  let client_id = connect websocket in
+let handle_client client =
+  let client_id = track client in
   let rec loop () =
-    match%lwt Dream.receive websocket with
+    match%lwt Dream.read client with
     | Some message ->
       let%lwt () = send message in
       loop ()
     | None ->
-      disconnect client_id;
-      Dream.close_websocket websocket
+      forget client_id;
+      Dream.close client
   in
   loop ()
 
diff --git a/example/w-flash/flash.eml.ml b/example/w-flash/flash.eml.ml
index b1f4fe4b..1b9cd121 100644
--- a/example/w-flash/flash.eml.ml
+++ b/example/w-flash/flash.eml.ml
@@ -33,7 +33,7 @@ let () =
       (fun request ->
         match%lwt Dream.form request with
         | `Ok ["text", text] ->
-          let () = Dream.put_flash "Info" text request in
+          let () = Dream.put_flash request "Info" text in
           Dream.redirect request "/result"
         | _ ->
           Dream.redirect request "/");
diff --git a/example/w-live-reload/live_reload.ml b/example/w-live-reload/live_reload.ml
index 9bfd450b..b5df2343 100644
--- a/example/w-live-reload/live_reload.ml
+++ b/example/w-live-reload/live_reload.ml
@@ -35,7 +35,7 @@ socket.onclose = function(event) {
 let inject_live_reload_script inner_handler request =
   let%lwt response = inner_handler request in
 
-  match Dream.header "Content-Type" response with
+  match Dream.header response "Content-Type" with
   | Some "text/html; charset=utf-8" ->
     let%lwt body = Dream.body response in
     let soup =
@@ -51,9 +51,8 @@ let inject_live_reload_script inner_handler request =
     | Some head ->
       Soup.create_element "script" ~inner_text:live_reload_script
       |> Soup.append_child head;
-      response
-      |> Dream.with_body (Soup.to_string soup)
-      |> Lwt.return
+      Dream.set_body response (Soup.to_string soup);
+      Lwt.return response
     end
 
   | _ ->
diff --git a/example/w-stress-response/stress_response.ml b/example/w-stress-response/stress_response.ml
index 553d22ed..29854159 100644
--- a/example/w-stress-response/stress_response.ml
+++ b/example/w-stress-response/stress_response.ml
@@ -16,7 +16,7 @@ let stress ?(megabytes = 1024) ?(chunk = 64) response =
   let rec loop sent =
     if sent >= limit then
       let%lwt () = Dream.flush response in
-      let%lwt () = Dream.close_stream response in
+      let%lwt () = Dream.close response in
       Lwt.return (Unix.gettimeofday () -. start)
     else
       let%lwt () = Dream.write response chunk_a in
diff --git a/example/w-stress-websocket-send/stress_websocket_send.eml.ml b/example/w-stress-websocket-send/stress_websocket_send.eml.ml
index e9a89ca9..9e17de31 100644
--- a/example/w-stress-websocket-send/stress_websocket_send.eml.ml
+++ b/example/w-stress-websocket-send/stress_websocket_send.eml.ml
@@ -42,11 +42,11 @@ let stress websocket =
   let start = Unix.gettimeofday () in
   let rec loop sent =
     if sent >= limit then
-      let%lwt () = Dream.close_websocket websocket in
+      let%lwt () = Dream.close websocket in
       Lwt.return (Unix.gettimeofday () -. start)
     else
-      let%lwt () = Dream.send websocket frame_a ~kind:`Binary in
-      let%lwt () = Dream.send websocket frame_b ~kind:`Binary in
+      let%lwt () = Dream.write websocket frame_a ~kind:`Binary in
+      let%lwt () = Dream.write websocket frame_b ~kind:`Binary in
       let%lwt () = Lwt.pause () in
       loop (sent + frame + frame)
   in
diff --git a/example/w-template-files/server.ml b/example/w-template-files/server.ml
index 07cbdb3e..0f56c2f8 100644
--- a/example/w-template-files/server.ml
+++ b/example/w-template-files/server.ml
@@ -5,7 +5,7 @@ let () =
 
     Dream.get "/:word"
       (fun request ->
-        Dream.param "word" request
+        Dream.param request "word"
         |> Template.render
         |> Dream.html);
 
diff --git a/example/w-template-stream/template_stream.eml.ml b/example/w-template-stream/template_stream.eml.ml
index c617963f..c8033744 100644
--- a/example/w-template-stream/template_stream.eml.ml
+++ b/example/w-template-stream/template_stream.eml.ml
@@ -15,7 +15,7 @@ let render response =
     </body>
     </html>
   in
-  Dream.close_stream response
+  Dream.close response
 
 let () =
   Dream.run
diff --git a/example/z-playground/server/playground.ml b/example/z-playground/server/playground.ml
index f2918ca3..39f3c111 100644
--- a/example/z-playground/server/playground.ml
+++ b/example/z-playground/server/playground.ml
@@ -125,7 +125,7 @@ let init_client socket content =
     "payload", `String content;
   ]
   |> Yojson.Basic.to_string
-  |> Dream.send socket
+  |> Dream.write socket
 
 let validate_id sandbox =
   String.length sandbox > 0 && Dream.from_base64url sandbox <> None
@@ -144,7 +144,7 @@ type session = {
   mutable sandbox : string;
   syntax : syntax;
   eml : bool;
-  socket : Dream.websocket;
+  socket : Dream.response;
 }
 
 let allocated_ports =
@@ -198,7 +198,7 @@ let client_log ?(add_newline = false) session message =
     "payload", `String message;
   ]
   |> Yojson.Basic.to_string
-  |> Dream.send session.socket
+  |> Dream.write session.socket
 
 let build_sandbox sandbox syntax eml =
   let dune =
@@ -268,7 +268,7 @@ let started session port =
     "port", `Int port;
   ]
   |> Yojson.Basic.to_string
-  |> Dream.send session.socket
+  |> Dream.write session.socket
 
 let rec make_container_id () =
   let candidate = Dream.random 9 |> Dream.to_base64url in
@@ -308,7 +308,7 @@ let run session =
 
 let kill session =
   let%lwt () = kill_container session in
-  Dream.close_websocket session.socket
+  Dream.close session.socket
 
 
 
@@ -350,7 +350,7 @@ let lock_sandbox sandbox f =
       Lwt.return_unit)
 
 let rec listen session =
-  match%lwt Dream.receive session.socket with
+  match%lwt Dream.read session.socket with
   | None ->
     Dream.info (fun log -> log "WebSocket closed by client");
     kill session
@@ -500,7 +500,7 @@ let () =
 
   (* Start the Web server. *)
   let playground_handler request =
-    let sandbox = Dream.param "id" request in
+    let sandbox = Dream.param request "id" in
     match validate_id sandbox with
     | false -> Dream.empty `Not_Found
     | true ->

From 64d7df3538b1fef10f3fb6dd1a3328f259203440 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 18 Dec 2021 22:25:45 +0300
Subject: [PATCH 100/312] mv test/expect/middleware test/expect/server

---
 test/expect/{middleware => server}/dune          | 0
 test/expect/{middleware => server}/initialize.ml | 0
 test/expect/{middleware => server}/router.ml     | 0
 3 files changed, 0 insertions(+), 0 deletions(-)
 rename test/expect/{middleware => server}/dune (100%)
 rename test/expect/{middleware => server}/initialize.ml (100%)
 rename test/expect/{middleware => server}/router.ml (100%)

diff --git a/test/expect/middleware/dune b/test/expect/server/dune
similarity index 100%
rename from test/expect/middleware/dune
rename to test/expect/server/dune
diff --git a/test/expect/middleware/initialize.ml b/test/expect/server/initialize.ml
similarity index 100%
rename from test/expect/middleware/initialize.ml
rename to test/expect/server/initialize.ml
diff --git a/test/expect/middleware/router.ml b/test/expect/server/router.ml
similarity index 100%
rename from test/expect/middleware/router.ml
rename to test/expect/server/router.ml

From bfa5ab1c5c158947ae21853a901ef4534854f188 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 18 Dec 2021 22:31:36 +0300
Subject: [PATCH 101/312] Tweak deprecation message formatting

---
 src/dream.mli | 94 ++++++++++++++++++++++++++++++---------------------
 1 file changed, 56 insertions(+), 38 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index af2448dc..ffe12c6b 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -375,16 +375,18 @@ val prefix : request -> string
 (**/**)
 val path : request -> string list
 [@@ocaml.deprecated
-" Router path access is being removed from the API. Comment at
-  https://github.com/aantron/dream/issues"]
+"Router path access is being removed from the API. Comment at
+https://github.com/aantron/dream/issues
+"]
 (** Parsed request path. For example, ["foo"; "bar"]. *)
 (**/**)
 
 (**/**)
 val version : request -> int * int
 [@@ocaml.deprecated
-" Protocol version access is being removed from the API. Comment at
-  https://github.com/aantron/dream/issues"]
+"Protocol version access is being removed from the API. Comment at
+https://github.com/aantron/dream/issues
+"]
 (** Protocol version. [(1, 1)] for HTTP/1.1 and [(2, 0)] for HTTP/2. *)
 (**/**)
 
@@ -394,8 +396,9 @@ val set_client : request -> string -> unit
 (**/**)
 val with_client : string -> request -> request
 [@@ocaml.deprecated
-" Use Dream.set_client. See
-  https://aantron.github.io/dream/#val-set_client"]
+"Use Dream.set_client. See
+https://aantron.github.io/dream/#val-set_client
+"]
 (**/**)
 
 val set_method_ : request -> [< method_ ] -> unit
@@ -404,23 +407,26 @@ val set_method_ : request -> [< method_ ] -> unit
 (**/**)
 val with_method_ : [< method_ ] -> request -> request
 [@@ocaml.deprecated
-" Use Dream.set_method_. See
-  https://aantron.github.io/dream/#val-set_method_"]
+"Use Dream.set_method_. See
+https://aantron.github.io/dream/#val-set_method_
+"]
 (**/**)
 
 (**/**)
 val with_path : string list -> request -> request
 [@@ocaml.deprecated
-" Router path access is being removed from the API. Comment at
-  https://github.com/aantron/dream/issues"]
+"Router path access is being removed from the API. Comment at
+https://github.com/aantron/dream/issues
+"]
 (** Replaces the path. See {!Dream.val-path}. *)
 (**/**)
 
 (**/**)
 val with_version : int * int -> request -> request
 [@@ocaml.deprecated
-" Protocol version access is being removed from the API. Comment at
-  https://github.com/aantron/dream/issues"]
+"Protocol version access is being removed from the API. Comment at
+https://github.com/aantron/dream/issues
+"]
 (** Replaces the version. See {!Dream.version}. *)
 (**/**)
 
@@ -578,8 +584,9 @@ val set_header : 'a message -> string -> string -> unit
 (**/**)
 val with_header : string -> string -> 'a message -> 'a message
 [@@ocaml.deprecated
-" Use Dream.set_header. See
-  https://aantron.github.io/dream/#val-with_header"]
+"Use Dream.set_header. See
+https://aantron.github.io/dream/#val-with_header
+"]
 (**/**)
 
 
@@ -748,8 +755,9 @@ val set_body : response -> string -> unit
 (**/**)
 val with_body : string -> response -> response
 [@@ocaml.deprecated
-" Use Dream.set_body. See
-  https://aantron.github.io/dream/#val-set_body"]
+"Use Dream.set_body. See
+https://aantron.github.io/dream/#val-set_body
+"]
 (**/**)
 
 (** {2 Streaming} *)
@@ -765,8 +773,9 @@ val read : 'a message -> string option promise
 (**/**)
 val with_stream : response -> response
 [@@ocaml.deprecated
-" Use Dream.stream instead. See
-  https://aantron.github.io/dream/#val-set_stream"]
+"Use Dream.stream instead. See
+https://aantron.github.io/dream/#val-set_stream
+"]
 (**/**)
 
 val write : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
@@ -848,8 +857,9 @@ val close_stream :
 val write_buffer :
   ?offset:int -> ?length:int -> response -> buffer -> unit promise
 [@@ocaml.deprecated
-" Use Dream.write_stream. See
-  https://aantron.github.io/dream/#val-write_stream"]
+"Use Dream.write_stream. See
+https://aantron.github.io/dream/#val-write_stream
+"]
 (**/**)
 
 (* TODO Ergonomics of this stream surface API. *)
@@ -1558,8 +1568,9 @@ val put_flash : request -> string -> string -> unit
 (**/**)
 type websocket = response
 [@@ocaml.deprecated
-" Use Dream.stream. See
-  https://aantron.github.io/dream/#type-stream"]
+"Use Dream.stream. See
+https://aantron.github.io/dream/#type-stream
+"]
 (** A WebSocket connection. See {{:https://tools.ietf.org/html/rfc6455} RFC
     6455} and
     {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API} MDN}. *)
@@ -1568,8 +1579,9 @@ type websocket = response
 (**/**)
 val send : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
 [@@ocaml.deprecated
-" Use Dream.write. See
-  https://aantron.github.io/dream/#val-write"]
+"Use Dream.write. See
+https://aantron.github.io/dream/#val-write
+"]
 (** Sends a single message. The WebSocket is ready another message when the
     promise resolves.
 
@@ -1584,8 +1596,9 @@ val send : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
 
 val receive : response -> string option promise
 [@@ocaml.deprecated
-" Use Dream.read. See
-  https://aantron.github.io/dream/#val-read"]
+"Use Dream.read. See
+https://aantron.github.io/dream/#val-read
+"]
 (** Retrieves a message. If the WebSocket is closed before a complete message
     arrives, the result is [None]. *)
 (**/**)
@@ -1593,8 +1606,9 @@ val receive : response -> string option promise
 (**/**)
 val close_websocket : ?code:int -> response -> unit promise
 [@@ocaml.deprecated
-" Use Dream.close. See
-  https://aantron.github.io/dream/#val-close"]
+"Use Dream.close. See
+https://aantron.github.io/dream/#val-close
+"]
 (** Closes the WebSocket. [~code] is usually not necessary, but is needed for
     some protocols based on WebSockets. See
     {{:https://tools.ietf.org/html/rfc6455#section-7.4} RFC 6455 §7.4}. *)
@@ -2394,8 +2408,9 @@ type 'a field
 (**/**)
 type 'a local = 'a field
 [@@ocaml.deprecated
-" Renamed to type Dream.field. See
-  https://aantron.github.io/dream/#type-field"]
+"Renamed to type Dream.field. See
+https://aantron.github.io/dream/#type-field
+"]
 (**/**)
 
 val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
@@ -2406,8 +2421,9 @@ val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
 (**/**)
 val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
 [@@ocaml.deprecated
-" Renamed to Dream.new_field. See
-  https://aantron.github.io/dream/#val-new_field"]
+"Renamed to Dream.new_field. See
+https://aantron.github.io/dream/#val-new_field
+"]
 (**/**)
 
 val field : 'b message -> 'a field -> 'a option
@@ -2416,8 +2432,9 @@ val field : 'b message -> 'a field -> 'a option
 (**/**)
 val local : 'b message -> 'a field -> 'a option
 [@@ocaml.deprecated
-" Renamed to Dream.field. See
-  https://aantron.github.io/dream/#val-field"]
+"Renamed to Dream.field. See
+https://aantron.github.io/dream/#val-field
+"]
 (**/**)
 
 val set_field : 'b message -> 'a field -> 'a -> unit
@@ -2426,8 +2443,9 @@ val set_field : 'b message -> 'a field -> 'a -> unit
 (**/**)
 val with_local : 'a field -> 'a -> 'b message -> 'b message
 [@@ocaml.deprecated
-" Use Dream.set_field instead. See
-  https://aantron.github.io/dream/#val-set_field"]
+"Use Dream.set_field instead. See
+https://aantron.github.io/dream/#val-set_field
+"]
 (**/**)
 
 
@@ -2455,14 +2473,14 @@ val test : ?prefix:string -> handler -> (request -> response)
 
 (**/**)
 val first : 'a message -> 'a message
-[@@ocaml.deprecated " Simply returns its own argument."]
+[@@ocaml.deprecated "Simply returns its own argument."]
 (** [Dream.first message] evaluates to the original request or response that
     [message] is immutably derived from. This is useful for getting the original
     state of requests especially, when they were first created inside the HTTP
     server ({!Dream.run}). *)
 
 val last : 'a message -> 'a message
-[@@ocaml.deprecated " Simply returns its own argument."]
+[@@ocaml.deprecated "Simply returns its own argument."]
 (** [Dream.last message] evaluates to the latest request or response that was
     derived from [message]. This is most useful for obtaining the state of
     requests at the time an exception was raised, without having to instrument

From 71e06b78eb11377e414cba2b547b388450f7bc67 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 18 Dec 2021 22:45:32 +0300
Subject: [PATCH 102/312] Catch up the tests

---
 src/dream.mli                |   1 +
 test/expect/pure/dune        |   1 -
 test/expect/server/dune      |   4 +-
 test/expect/server/router.ml |  41 ++++---
 test/unit/headers.ml         | 203 ++++++----------------------------
 test/unit/request.ml         | 207 +----------------------------------
 6 files changed, 69 insertions(+), 388 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index ffe12c6b..ba6a754a 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -379,6 +379,7 @@ val path : request -> string list
 https://github.com/aantron/dream/issues
 "]
 (** Parsed request path. For example, ["foo"; "bar"]. *)
+(* TODO If not removing this, move it to section Routing. *)
 (**/**)
 
 (**/**)
diff --git a/test/expect/pure/dune b/test/expect/pure/dune
index 8e509ce2..8a27fd6c 100644
--- a/test/expect/pure/dune
+++ b/test/expect/pure/dune
@@ -4,7 +4,6 @@
   base
   dream
   dream.cipher
-  dream.middleware
   dream-pure
   lwt
   lwt.unix
diff --git a/test/expect/server/dune b/test/expect/server/dune
index fb43c9d0..cf730005 100644
--- a/test/expect/server/dune
+++ b/test/expect/server/dune
@@ -1,10 +1,10 @@
 (library
- (name test_expect_middleware)
+ (name test_expect_server)
  (libraries
   base
   dream
-  dream.middleware
   dream-pure
+  dream.server
   lwt
   lwt.unix
   ppx_expect.common
diff --git a/test/expect/server/router.ml b/test/expect/server/router.ml
index a4c380a7..d6e6c6c5 100644
--- a/test/expect/server/router.ml
+++ b/test/expect/server/router.ml
@@ -5,6 +5,15 @@
 
 
 
+(* TODO Decide what to do this based on the deprecation (or not) of val path. *)
+module Dream =
+struct
+  include Dream
+  let path = path [@ocaml.warning "-3"]
+end
+
+
+
 let () =
   ignore Initialize.require
 
@@ -16,11 +25,11 @@ let path request =
 
 let show_tokens route =
   try
-    Dream__middleware.Router.parse route
+    Dream__server.Router.parse route
     |> List.map (function
-      | Dream__middleware.Router.Literal s -> Printf.sprintf "%S" s
-      | Dream__middleware.Router.Param s -> Printf.sprintf ":%S" s
-      | Dream__middleware.Router.Wildcard s -> Printf.sprintf "*%S" s)
+      | Dream__server.Router.Literal s -> Printf.sprintf "%S" s
+      | Dream__server.Router.Param s -> Printf.sprintf ":%S" s
+      | Dream__server.Router.Wildcard s -> Printf.sprintf "*%S" s)
     |> String.concat "; "
     |> Printf.printf "[%s]\n"
   with Failure message ->
@@ -309,7 +318,7 @@ let%expect_test _ =
 let%expect_test _ =
   show "/abc/def" @@ Dream.router [
     Dream.get "/abc/:x" (fun request ->
-      Dream.respond (Dream.param "x" request));
+      Dream.respond (Dream.param request "x"));
   ];
   [%expect {|
     Response: 200 OK
@@ -318,7 +327,7 @@ let%expect_test _ =
 let%expect_test _ =
   show "/abc/def/ghi" @@ Dream.router [
     Dream.get "/abc/:x/:y" (fun request ->
-      Dream.respond (Dream.param "x" request ^ Dream.param "y" request));
+      Dream.respond (Dream.param request "x" ^ Dream.param request "y"));
   ];
   [%expect {|
     Response: 200 OK
@@ -334,14 +343,14 @@ let%expect_test _ =
 let%expect_test _ =
   show "/abc/def" @@ Dream.router [
     Dream.get "/abc/def" (fun request ->
-      Dream.respond (Dream.param "x" request));
+      Dream.respond (Dream.param request "x"));
   ];
   [%expect {|
     Dream.param: missing path parameter "x" |}]
 
 let%expect_test _ =
   show "/" @@ (fun next_handler request ->
-    ignore (Dream.param "x" request);
+    ignore (Dream.param request "x");
     next_handler request);
   [%expect {| Dream.param: missing path parameter "x" |}]
 
@@ -422,7 +431,7 @@ let%expect_test _ =
   show "/abc/def" @@ Dream.router [
     Dream.scope "/:x" [] [
       Dream.get "/def" (fun request ->
-        Dream.respond (Dream.param "x" request));
+        Dream.respond (Dream.param request "x"));
     ];
   ];
   [%expect {|
@@ -433,7 +442,7 @@ let%expect_test _ =
   show "/abc/def" @@ Dream.router [
     Dream.scope "/:x" [] [
       Dream.get "/:x" (fun request ->
-        Dream.respond (Dream.param "x" request));
+        Dream.respond (Dream.param request "x"));
     ];
   ];
   [%expect {|
@@ -650,7 +659,7 @@ let%expect_test _ =
     Dream.get "/:x/**" (fun request ->
       Printf.ksprintf Dream.respond "%s %s %s"
         (Dream.prefix request)
-        (Dream.param "x" request)
+        (Dream.param request "x")
         (path request));
   ];
   [%expect {|
@@ -662,7 +671,7 @@ let%expect_test _ =
     Dream.get "/abc/:x/**" (fun request ->
       Printf.ksprintf Dream.respond "%s %s %s"
         (Dream.prefix request)
-        (Dream.param "x" request)
+        (Dream.param request "x")
         (path request));
   ];
   [%expect {|
@@ -675,7 +684,7 @@ let%expect_test _ =
       Dream.get "/:x/**" (fun request ->
         Printf.ksprintf Dream.respond "%s %s %s"
           (Dream.prefix request)
-          (Dream.param "x" request)
+          (Dream.param request "x")
           (path request));
     ];
   ];
@@ -707,8 +716,8 @@ let%expect_test _ =
         Dream.get "/:y" (fun request ->
           Printf.ksprintf Dream.respond "%s %s %s %s"
             (Dream.prefix request)
-            (Dream.param "x" request)
-            (Dream.param "y" request)
+            (Dream.param request "x")
+            (Dream.param request "y")
             (path request));
       ]
       @@ (fun _ -> Dream.respond ~status:`Not_Found ""))
@@ -725,7 +734,7 @@ let%expect_test _ =
         Dream.get "/:x" (fun request ->
           Printf.ksprintf Dream.respond "%s %s %s"
             (Dream.prefix request)
-            (Dream.param "x" request)
+            (Dream.param request "x")
             (path request));
       ]
       @@ (fun _ -> Dream.respond ~status:`Not_Found ""))
diff --git a/test/unit/headers.ml b/test/unit/headers.ml
index 8d559461..03988eb6 100644
--- a/test/unit/headers.ml
+++ b/test/unit/headers.ml
@@ -11,240 +11,107 @@ let (-:) name f = Alcotest.test_case name `Quick f
 
 let tests = "headers", [
 
-
   "header" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "C", "d"] ""
-    |> Dream.header "C"
+    let request = Dream.request ~headers:["A", "b"; "C", "d"] "" in
+    Dream.header request "C"
     |> Alcotest.(check (option string)) "header" (Some "d")
-
   end;
 
-
   "header none" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "C", "d"] ""
-    |> Dream.header "E"
+    let request = Dream.request ~headers:["A", "b"; "C", "d"] "" in
+    Dream.header request "E"
     |> Alcotest.(check (option string)) "header" None
-
   end;
 
-
   "headers" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "C", "d"; "C", "e"] ""
-    |> Dream.headers "C"
+    let request = Dream.request ~headers:["A", "b"; "C", "d"; "C", "e"] "" in
+    Dream.headers request "C"
     |> Alcotest.(check (list string)) "headers" ["d"; "e"]
-
   end;
 
-
   "headers empty" -: begin fun () ->
-    Dream.request ~headers:["A", "b"; "C", "d"; "C", "e"] ""
-    |> Dream.headers "F"
+    let request = Dream.request ~headers:["A", "b"; "C", "d"; "C", "e"] "" in
+    Dream.headers request "F"
     |> Alcotest.(check (list string)) "headers" []
-
   end;
 
-
   "has_header" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "C", "d"] ""
-    |> Dream.has_header "C"
+    let request = Dream.request ~headers:["A", "b"; "C", "d"] "" in
+    Dream.has_header request "C"
     |> Alcotest.(check bool) "has_header" true
-
   end;
 
-
   "has_header false" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "C", "d"] ""
-    |> Dream.has_header "E"
+    let request = Dream.request ~headers:["A", "b"; "C", "d"] "" in
+    Dream.has_header request "E"
     |> Alcotest.(check bool) "has_header" false
-
   end;
 
-
   "all_headers" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "C", "d"; "C", "e"] ""
-    |> Dream.all_headers
+    let request = Dream.request ~headers:["A", "b"; "C", "d"; "C", "e"] "" in
+    Dream.all_headers request
     |> Dream.sort_headers
     |> Alcotest.(check (list (pair string string))) "all_headers"
       ["A", "b"; "C", "d"; "C", "e"]
-
   end;
 
-
   "add_header" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"] ""
-    |> Dream.add_header "C" "d"
-    |> Dream.all_headers
+    let request = Dream.request ~headers:["A", "b"] "" in
+    Dream.add_header request "C" "d";
+    Dream.all_headers request
     |> Dream.sort_headers
     |> Alcotest.(check (list (pair string string))) "all_headers"
       ["A", "b"; "C", "d"]
-
   end;
 
-
   "add_header duplicate" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "C", "d"] ""
-    |> Dream.add_header "A" "e"
-    |> Dream.all_headers
+    let request = Dream.request ~headers:["A", "b"; "C", "d"] "" in
+    Dream.add_header request "A" "e";
+    Dream.all_headers request
     |> Dream.sort_headers
     |> Alcotest.(check (list (pair string string))) "all_headers"
       ["A", "b"; "A", "e"; "C", "d"]
-
   end;
 
-
   "add_header compares less" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "C", "d"] ""
-    |> Dream.add_header "A" "a"
-    |> Dream.all_headers
+    let request = Dream.request ~headers:["A", "b"; "C", "d"] "" in
+    Dream.add_header request "A" "a";
+    Dream.all_headers request
     |> Dream.sort_headers
     |> Alcotest.(check (list (pair string string))) "all_headers"
       ["A", "b"; "A", "a"; "C", "d"]
-
   end;
 
-
-  "add_header immutable" -: begin fun () ->
-
-    let first = Dream.request ~headers:["A", "b"] "" in
-    let last  = Dream.add_header "C" "d" first in
-
-    Alcotest.(check bool) "different" true (last != first);
-    Alcotest.(check (list (pair string string))) "all_headers"
-      ["A", "b"] (Dream.sort_headers (Dream.all_headers first))
-
-  end;
-
-
-  "add_header update" -: begin fun () ->
-
-    let first = Dream.request "" in
-    let last  = Dream.add_header "A" "b" first in
-
-    Alcotest.(check bool) "last"  true (Dream.last first == last);
-    Alcotest.(check bool) "last"  true (Dream.last last  == last);
-
-    Alcotest.(check bool) "first" true (Dream.first first == first);
-    Alcotest.(check bool) "first" true (Dream.first last  == first);
-
-  end;
-
-
   "drop_header" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "C", "d"; "C", "e"] ""
-    |> Dream.drop_header "C"
-    |> Dream.all_headers
+    let request = Dream.request ~headers:["A", "b"; "C", "d"; "C", "e"] "" in
+    Dream.drop_header request "C";
+    Dream.all_headers request
     |> Alcotest.(check (list (pair string string))) "all_headers" ["A", "b"]
-
   end;
 
-
   "drop_header absent" -: begin fun () ->
-
-    Dream.request ~headers:["C", "d"] ""
-    |> Dream.drop_header "A"
-    |> Dream.all_headers
+    let request = Dream.request ~headers:["C", "d"] "" in
+    Dream.drop_header request "A";
+    Dream.all_headers request
     |> Alcotest.(check (list (pair string string))) "all_headers" ["C", "d"]
-
-  end;
-
-
-  "drop_header immutable" -: begin fun () ->
-
-    let first = Dream.request ~headers:["A", "b"; "C", "d"] "" in
-    let last  = Dream.drop_header "A" first in
-
-    Alcotest.(check bool) "different" true (last != first);
-    Alcotest.(check (list (pair string string))) "all_headers"
-      ["A", "b"; "C", "d"] (Dream.sort_headers (Dream.all_headers first))
-
-  end;
-
-
-  (* If the optimization to return the same request upon missing headers is
-     implemented, this test will rightly fail, and will need inversion of the
-     check "different." *)
-  "drop_header absent reuse" -: begin fun () ->
-
-    let first = Dream.request ~headers:["C", "d"] "" in
-    let last  = Dream.drop_header "A" first in
-
-    Alcotest.(check bool) "different" true (last != first);
-    Alcotest.(check (list (pair string string))) "all_headers"
-      ["C", "d"] (Dream.sort_headers (Dream.all_headers first))
-
-  end;
-
-
-  "drop_header update" -: begin fun () ->
-
-    let first = Dream.request ~headers:["A", "b"] "" in
-    let last  = Dream.drop_header "A" first in
-
-    Alcotest.(check bool) "last"  true (Dream.last first == last);
-    Alcotest.(check bool) "last"  true (Dream.last last  == last);
-
-    Alcotest.(check bool) "first" true (Dream.first first == first);
-    Alcotest.(check bool) "first" true (Dream.first last  == first);
-
   end;
 
-
   "with_header" -: begin fun () ->
-
-    Dream.request ~headers:["C", "d"] ""
-    |> Dream.with_header "A" "b"
-    |> Dream.all_headers
+    let request = Dream.request ~headers:["C", "d"] "" in
+    Dream.set_header request "A" "b";
+    Dream.all_headers request
     |> Dream.sort_headers
     |> Alcotest.(check (list (pair string string))) "all_headers"
       ["A", "b"; "C", "d"]
-
   end;
 
-
   "with_header present" -: begin fun () ->
-
-    Dream.request ~headers:["A", "b"; "A", "c"; "D", "e"] ""
-    |> Dream.with_header "A" "f"
-    |> Dream.all_headers
+    let request = Dream.request ~headers:["A", "b"; "A", "c"; "D", "e"] "" in
+    Dream.set_header request "A" "f";
+    Dream.all_headers request
     |> Dream.sort_headers
     |> Alcotest.(check (list (pair string string))) "all_headers"
       ["A", "f"; "D", "e"]
-
   end;
 
-
-  "with_header immutable" -: begin fun () ->
-
-    let first = Dream.request ~headers:["A", "b"; "C", "d"] "" in
-    let last  = Dream.with_header "A" "e" first in
-
-    Alcotest.(check bool) "different" true (last != first);
-    Alcotest.(check (list (pair string string))) "all_headers"
-      ["A", "b"; "C", "d"] (Dream.sort_headers (Dream.all_headers first))
-
-  end;
-
-
-  "with_header update" -: begin fun () ->
-
-    let first = Dream.request ~headers:["A", "b"] "" in
-    let last  = Dream.with_header "A" "c" first in
-
-    Alcotest.(check bool) "last"  true (Dream.last first == last);
-    Alcotest.(check bool) "last"  true (Dream.last last  == last);
-
-    Alcotest.(check bool) "first" true (Dream.first first == first);
-    Alcotest.(check bool) "first" true (Dream.first last  == first);
-
-  end;
 ]
diff --git a/test/unit/request.ml b/test/unit/request.ml
index 11a6578b..fdbc2e60 100644
--- a/test/unit/request.ml
+++ b/test/unit/request.ml
@@ -11,227 +11,32 @@ let (-:) name f = Alcotest.test_case name `Quick f
 
 let tests = "request", [
 
-
-  "client" -: begin fun () ->
-
-    Dream.request ~client:"1.2.3.4:23456" ""
-    |> Dream.client
-    |> Alcotest.(check string) "client" "1.2.3.4:23456"
-
-  end;
-
-
   "with_client" -: begin fun () ->
-
-    Dream.request ""
-    |> Dream.with_client "2.3.4.5:34567"
-    |> Dream.client
+    let request = Dream.request "" in
+    Dream.set_client request "2.3.4.5:34567";
+    Dream.client request
     |> Alcotest.(check string) "client" "2.3.4.5:34567"
-
-  end;
-
-
-  "with_client immutable" -: begin fun () ->
-
-    let first = Dream.request ~client:"1.2.3.4:23456" "" in
-    let last  = Dream.with_client "2.3.4.5:34567" first in
-
-    Alcotest.(check bool) "different" true (last != first);
-    Alcotest.(check string) "client" "1.2.3.4:23456" (Dream.client first);
-
   end;
 
-
-  "with_client update" -: begin fun () ->
-
-    let first = Dream.request "" in
-    let last  = Dream.with_client "1.2.3.4:23456" first in
-
-    Alcotest.(check bool) "last"  true (Dream.last first == last);
-    Alcotest.(check bool) "last"  true (Dream.last last  == last);
-
-    Alcotest.(check bool) "first" true (Dream.first first == first);
-    Alcotest.(check bool) "first" true (Dream.first last  == first);
-
-  end;
-
-
   "method_" -: begin fun () ->
-
     Dream.request ~method_:`POST ""
     |> Dream.method_
     |> Dream.method_to_string
     |> Alcotest.(check string) "method_" "POST"
-
   end;
 
-
   "with_method_" -: begin fun () ->
-
-    Dream.request ""
-    |> Dream.with_method_ `PUT
-    |> Dream.method_
+    let request = Dream.request "" in
+    Dream.set_method_ request `PUT;
+    Dream.method_ request
     |> Dream.method_to_string
     |> Alcotest.(check string) "method_" "PUT";
-
-  end;
-
-
-  "with_method_ immutable" -: begin fun () ->
-
-    let first = Dream.request ~method_:`DELETE "" in
-    let last  = Dream.with_method_ `HEAD first in
-
-    Alcotest.(check bool) "different" true (last != first);
-    Alcotest.(check string) "method_" "DELETE"
-      (Dream.method_to_string (Dream.method_ first))
-
-  end;
-
-
-  "with_method_ update" -: begin fun () ->
-
-    let first = Dream.request "" in
-    let last  = Dream.with_method_ `TRACE first in
-
-    Alcotest.(check bool) "last"  true (Dream.last first == last);
-    Alcotest.(check bool) "last"  true (Dream.last last  == last);
-
-    Alcotest.(check bool) "first" true (Dream.first first == first);
-    Alcotest.(check bool) "first" true (Dream.first last  == first);
-
   end;
 
-
   "target" -: begin fun () ->
-
     Dream.request ~target:"/foo" ""
     |> Dream.target
     |> Alcotest.(check string) "target" "/foo"
-
-  end;
-
-
-  (* "with_target" -: begin fun () ->
-
-    Dream.request ""
-    |> Dream.with_target "/bar"
-    |> Dream.target
-    |> Alcotest.(check string) "target" "/bar";
-
-  end;
-
-
-  "with_target immutable" -: begin fun () ->
-
-    let first = Dream.request ~target:"/bar" "" in
-    let last  = Dream.with_target "/foo" first in
-
-    Alcotest.(check bool) "different" true (last != first);
-    Alcotest.(check string) "target" "/bar" (Dream.target first)
-
-  end;
-
-
-  "with_target update" -: begin fun () ->
-
-    let first = Dream.request "" in
-    let last  = Dream.with_target "/foo" first in
-
-    Alcotest.(check bool) "last"  true (Dream.last first == last);
-    Alcotest.(check bool) "last"  true (Dream.last last  == last);
-
-    Alcotest.(check bool) "first" true (Dream.first first == first);
-    Alcotest.(check bool) "first" true (Dream.first last  == first);
-
-  end; *)
-
-
-  (* "prefix" -: begin fun () ->
-
-    Dream.request ~prefix:"/foo" ""
-    |> Dream.prefix
-    |> Alcotest.(check string) "prefix" "/foo"
-
-  end;
-
-
-  "with_prefix" -: begin fun () ->
-
-    Dream.request ""
-    |> Dream.with_prefix "/bar"
-    |> Dream.prefix
-    |> Alcotest.(check string) "prefix" "/bar";
-
-  end;
-
-
-  "with_prefix immutable" -: begin fun () ->
-
-    let first = Dream.request ~prefix:"/bar" "" in
-    let last  = Dream.with_prefix "/foo" first in
-
-    Alcotest.(check bool) "different" true (last != first);
-    Alcotest.(check string) "prefix" "/bar" (Dream.prefix first)
-
-  end;
-
-
-  "with_prefix update" -: begin fun () ->
-
-    let first = Dream.request "" in
-    let last  = Dream.with_prefix "/foo" first in
-
-    Alcotest.(check bool) "last"  true (Dream.last first == last);
-    Alcotest.(check bool) "last"  true (Dream.last last  == last);
-
-    Alcotest.(check bool) "first" true (Dream.first first == first);
-    Alcotest.(check bool) "first" true (Dream.first last  == first);
-
-  end; *)
-
-
-  "version" -: begin fun () ->
-
-    Dream.request ~version:(0, 5) ""
-    |> Dream.version
-    |> Alcotest.(check (pair int int)) "version" (0, 5)
-
-  end;
-
-
-  "with_version" -: begin fun () ->
-
-    Dream.request ""
-    |> Dream.with_version (0, 6)
-    |> Dream.version
-    |> Alcotest.(check (pair int int)) "version" (0, 6);
-
-  end;
-
-
-  "with_version immutable" -: begin fun () ->
-
-    let first = Dream.request ~version:(0, 7) "" in
-    let last  = Dream.with_version (0, 8) first in
-
-    Alcotest.(check bool) "different" true (last != first);
-    Alcotest.(check (pair int int)) "version" (0, 7) (Dream.version first)
-
-  end;
-
-
-  "with_version update" -: begin fun () ->
-
-    let first = Dream.request "" in
-    let last  = Dream.with_version (0, 9) first in
-
-    Alcotest.(check bool) "last"  true (Dream.last first == last);
-    Alcotest.(check bool) "last"  true (Dream.last last  == last);
-
-    Alcotest.(check bool) "first" true (Dream.first first == first);
-    Alcotest.(check bool) "first" true (Dream.first last  == first);
-
   end;
 
 ]

From 773c3464168171f906708ecaa157fa374fe4cbe3 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 18 Dec 2021 22:47:33 +0300
Subject: [PATCH 103/312] Move cipher tests from pure to server tests

---
 test/expect/pure/cipher/dune                  | 5 -----
 test/expect/pure/dune                         | 1 -
 test/expect/{pure => server}/cipher/cipher.ml | 0
 test/expect/server/cipher/dune                | 5 +++++
 4 files changed, 5 insertions(+), 6 deletions(-)
 delete mode 100644 test/expect/pure/cipher/dune
 rename test/expect/{pure => server}/cipher/cipher.ml (100%)
 create mode 100644 test/expect/server/cipher/dune

diff --git a/test/expect/pure/cipher/dune b/test/expect/pure/cipher/dune
deleted file mode 100644
index f6cf5ed5..00000000
--- a/test/expect/pure/cipher/dune
+++ /dev/null
@@ -1,5 +0,0 @@
-(library
- (name test_expect_pure_cipher)
- (libraries test_expect_pure)
- (inline_tests)
- (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/dune b/test/expect/pure/dune
index 8a27fd6c..9e218564 100644
--- a/test/expect/pure/dune
+++ b/test/expect/pure/dune
@@ -3,7 +3,6 @@
  (libraries
   base
   dream
-  dream.cipher
   dream-pure
   lwt
   lwt.unix
diff --git a/test/expect/pure/cipher/cipher.ml b/test/expect/server/cipher/cipher.ml
similarity index 100%
rename from test/expect/pure/cipher/cipher.ml
rename to test/expect/server/cipher/cipher.ml
diff --git a/test/expect/server/cipher/dune b/test/expect/server/cipher/dune
new file mode 100644
index 00000000..b34a9cc5
--- /dev/null
+++ b/test/expect/server/cipher/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_server_cipher)
+ (libraries test_expect_server)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))

From 85f3aec86e0a2a6a9f1b085562011b1900324b0d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 18 Dec 2021 22:58:53 +0300
Subject: [PATCH 104/312] WebSocket write: set FIN bit by default

---
 src/pure/inmost.ml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 9441f2d2..8b9fe414 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -171,7 +171,7 @@ let write ?kind message chunk =
   (* TODO Better handling of close? But it can't even occur with http/af. *)
   Stream.write
     message.server_stream
-    buffer 0 length binary false
+    buffer 0 length binary true
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
     (fun () -> Lwt.wakeup_later resolver ());
   promise

From d2b8e0f7a0939e689148664a8f6a3a994b291737 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 19 Dec 2021 14:28:29 +0300
Subject: [PATCH 105/312] Rename Dream__localhost to match its directory

---
 src/certificate/dune | 10 +++++-----
 src/http/dune        |  2 +-
 src/http/http.ml     |  6 +++++-
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/certificate/dune b/src/certificate/dune
index a75f8585..5b1642ce 100644
--- a/src/certificate/dune
+++ b/src/certificate/dune
@@ -1,9 +1,9 @@
 (library
- (public_name dream.localhost)
- (name dream__localhost))
+ (public_name dream.certificate)
+ (name dream__certificate))
 
 (rule
- (target dream__localhost.ml)
+ (target dream__certificate.ml)
  (deps
   (:certificate localhost.crt)
   (:key localhost.key))
@@ -11,10 +11,10 @@
   (with-stdout-to
    %{target}
    (progn
-    (echo "let certificate = {ssl|")
+    (echo "let localhost_certificate = {ssl|")
     (cat %{certificate})
     (echo "|ssl}\n\n")
-    (echo "let key = {key|")
+    (echo "let localhost_certificate_key = {key|")
     (cat %{key})
     (echo "|key}\n")
    ))))
diff --git a/src/http/dune b/src/http/dune
index 9280e5c6..386935c7 100644
--- a/src/http/dune
+++ b/src/http/dune
@@ -5,8 +5,8 @@
   bigarray-compat
   bigstringaf
   digestif
+  dream.certificate
   dream.cipher
-  dream.localhost
   dream-pure
   dream.server
   dream-httpaf.gluten
diff --git a/src/http/http.ml b/src/http/http.ml
index f6384c07..c910ae82 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -755,7 +755,11 @@ let serve_with_maybe_https
               log "See arguments ~certificate_file and ~key_file");
           end;
 
-          `Memory (Dream__localhost.certificate, Dream__localhost.key, `Silent)
+          `Memory (
+            Dream__certificate.localhost_certificate,
+            Dream__certificate.localhost_certificate_key,
+            `Silent
+          )
 
         | Some certificate_file, Some key_file, None, None ->
           `File (certificate_file, key_file)

From 553567f2d80648cb4fbdee37bf456a091fe463e1 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 19 Dec 2021 14:41:17 +0300
Subject: [PATCH 106/312] Sort inmost.ml to match all the .mli files

---
 src/pure/inmost.ml | 239 ++++++++++++++++++++++++---------------------
 1 file changed, 127 insertions(+), 112 deletions(-)

diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 8b9fe414..6c0528a5 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -5,30 +5,27 @@
 
 
 
+(* Type abbreviations and modules used in defining the primary types *)
+
 type method_ = Method.method_
 type status = Status.status
 
 type stream = Stream.stream
 type buffer = Stream.buffer
 
-module Custom_field_metadata =
-struct
-  type 'a t = string option * ('a -> string) option
-end
-module Fields = Hmap.Make (Custom_field_metadata)
+type 'a promise = 'a Lwt.t
+
+module Fields =
+  Hmap.Make (struct
+    type 'a t = string option * ('a -> string) option
+  end)
+(* TODO Use a record to self-document the meaning of this type. *)
 
-type request = client message
-and response = server message
 
-and 'a message = {
-  specific : 'a;
-  mutable headers : (string * string) list;
-  mutable client_stream : Stream.stream;
-  mutable server_stream : Stream.stream;
-  mutable fields : Fields.t;
-}
 
-and client = {
+(* Messages (requests and responses) *)
+
+type client = {
   mutable method_ : method_;
   target : string;
   mutable request_version : int * int;
@@ -39,15 +36,57 @@ and client = {
    middleware and into transport so that the version field is not necessary for
    some middleware to decide which headers to add. *)
 
-and server = {
+type server = {
   status : status;
 }
 
-type 'a promise = 'a Lwt.t
+type 'a message = {
+  specific : 'a;
+  mutable headers : (string * string) list;
+  mutable client_stream : Stream.stream;
+  mutable server_stream : Stream.stream;
+  mutable fields : Fields.t;
+}
+
+type request = client message
+type response = server message
+
+
+
+(* Functions of messages *)
 
 type handler = request -> response Lwt.t
 type middleware = handler -> handler
 
+
+
+(* Requests *)
+
+let request
+    ?method_
+    ?(target = "/")
+    ?(version = 1, 1)
+    ?(headers = [])
+    client_stream
+    server_stream =
+
+  let method_ =
+    match (method_ :> method_ option) with
+    | None -> `GET
+    | Some method_ -> method_
+  in
+  {
+    specific = {
+      method_;
+      target;
+      request_version = version;
+    };
+    headers;
+    client_stream;
+    server_stream;
+    fields = Fields.empty;
+  }
+
 let method_ request =
   request.specific.method_
 
@@ -63,14 +102,43 @@ let set_method_ request method_ =
 let set_version request version =
   request.specific.request_version <- version
 
+
+
+(* Responses *)
+
+let response ?status ?code ?(headers = []) client_stream server_stream =
+  let status =
+    match status, code with
+    | None, None -> `OK
+    | Some status, _ -> (status :> status)
+    | None, Some code -> Status.int_to_status code
+  in
+  {
+    specific = {
+      status;
+    };
+    headers;
+    client_stream;
+    server_stream;
+    fields = Fields.empty;
+  }
+
 let status response =
   response.specific.status
 
-let all_headers message =
+
+
+(* Headers *)
+
+let header_basic name message =
+  let name = String.lowercase_ascii name in
   message.headers
+  |> List.find (fun (name', _) -> String.lowercase_ascii name' = name)
+  |> snd
 
-let set_all_headers message headers =
-  message.headers <- headers
+let header message name =
+  try Some (header_basic name message)
+  with Not_found -> None
 
 let headers message name =
   let name = String.lowercase_ascii name in
@@ -84,15 +152,8 @@ let headers message name =
     []
   |> List.rev
 
-let header_basic name message =
-  let name = String.lowercase_ascii name in
+let all_headers message =
   message.headers
-  |> List.find (fun (name', _) -> String.lowercase_ascii name' = name)
-  |> snd
-
-let header message name =
-  try Some (header_basic name message)
-  with Not_found -> None
 
 let has_header message name =
   try ignore (header_basic name message); true
@@ -112,30 +173,20 @@ let set_header message name value =
   drop_header message name;
   add_header message name value
 
-(* TODO NOTE On the client, this will read the client stream until close. *)
-let body message =
-  Stream.read_until_close message.server_stream
+let set_all_headers message headers =
+  message.headers <- headers
 
-let read message =
-  Stream.read_convenience message.server_stream
+let sort_headers headers =
+  List.stable_sort (fun (name, _) (name', _) -> compare name name') headers
 
-let client_stream message =
-  message.client_stream
 
-let server_stream message =
-  message.server_stream
 
-let set_client_stream message client_stream =
-  message.client_stream <- client_stream
+(* Streams *)
 
-let set_server_stream message server_stream =
-  message.server_stream <- server_stream
+(* TODO NOTE On the client, this will read the client stream until close. *)
+let body message =
+  Stream.read_until_close message.server_stream
 
-(* Create a fresh ref. The reason this field has a ref is because it might get
-   replaced when a body is forced read. That's not what's happening here - we
-   are setting a new body. Indeed, there might be a concurrent read going on.
-   That read should not override the new body. So let it mutate the old
-   request's ref; we generate a new request with a new body ref. *)
 (* TODO NOTE In Dream, this should operate on response server_streams. In Hyper,
    it should operate on request client_streams, although there is no very good
    reason why it can't operate on general messages, which might be useful in
@@ -155,6 +206,9 @@ let set_body message body =
   in
   message.server_stream <- body
 
+let read message =
+  Stream.read_convenience message.server_stream
+
 (* TODO Need to expose FIN. However, it can't have any effect even on
    WebSockets, because websocket/af does not offer the ability to pass FIN. It
    is hardcoded to true. *)
@@ -191,8 +245,35 @@ let close ?(code = 1000) message =
   Stream.close message.server_stream code;
   Lwt.return_unit
 
+let client_stream message =
+  message.client_stream
+
+let server_stream message =
+  message.server_stream
+
+let set_client_stream message client_stream =
+  message.client_stream <- client_stream
+
+let set_server_stream message server_stream =
+  message.server_stream <- server_stream
+
+
+
+(* Middleware *)
+
+let no_middleware handler request =
+  handler request
+
+let rec pipeline middlewares handler =
+  match middlewares with
+  | [] -> handler
+  | middleware::more -> middleware (pipeline more handler)
+(* TODO Test pipelien after the List.rev fiasco. *)
 
 
+
+(* Custom fields *)
+
 type 'a field = 'a Fields.key
 
 let new_field ?name ?show_value () =
@@ -211,69 +292,3 @@ let fold_fields f initial message =
     | _ -> accumulator)
     message.fields
     initial
-
-
-
-let request
-    ?method_
-    ?(target = "/")
-    ?(version = 1, 1)
-    ?(headers = [])
-    client_stream
-    server_stream =
-
-  let method_ =
-    match (method_ :> method_ option) with
-    | None -> `GET
-    | Some method_ -> method_
-  in
-
-  (* This function is used for debugging, so it's fine to allocate a fake body
-     and then immediately replace it. *)
-
-  {
-    specific = {
-      (* TODO Is there a better fake error handler? Maybe this function should
-         come after the response constructors? *)
-      method_;
-      target;
-      request_version = version;
-    };
-    headers;
-    client_stream;
-    server_stream;
-    fields = Fields.empty;
-  }
-
-let response
-    ?status ?code ?(headers = []) client_stream server_stream =
-
-  let status =
-    match status, code with
-    | None, None -> `OK
-    | Some status, _ -> (status :> status)
-    | None, Some code -> Status.int_to_status code
-  in
-
-  {
-    specific = {
-      status;
-    };
-    headers;
-    client_stream;
-    server_stream;
-    (* TODO This fully dead stream should be preallocated. *)
-    fields = Fields.empty;
-  }
-
-let no_middleware handler request =
-  handler request
-
-let rec pipeline middlewares handler =
-  match middlewares with
-  | [] -> handler
-  | middleware::more -> middleware (pipeline more handler)
-(* TODO Test pipelien after the List.rev fiasco. *)
-
-let sort_headers headers =
-  List.stable_sort (fun (name, _) (name', _) -> compare name name') headers

From 9df46cb32989c853f2280e4ef78d574532e7a48e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 19 Dec 2021 14:44:57 +0300
Subject: [PATCH 107/312] inmost.ml: clarify some record fields

---
 src/pure/inmost.ml | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/src/pure/inmost.ml b/src/pure/inmost.ml
index 6c0528a5..6620e29a 100644
--- a/src/pure/inmost.ml
+++ b/src/pure/inmost.ml
@@ -15,11 +15,11 @@ type buffer = Stream.buffer
 
 type 'a promise = 'a Lwt.t
 
-module Fields =
-  Hmap.Make (struct
-    type 'a t = string option * ('a -> string) option
-  end)
-(* TODO Use a record to self-document the meaning of this type. *)
+type 'a field_metadata = {
+  name : string option;
+  show_value : ('a -> string) option;
+}
+module Fields = Hmap.Make (struct type 'a t = 'a field_metadata end)
 
 
 
@@ -28,7 +28,7 @@ module Fields =
 type client = {
   mutable method_ : method_;
   target : string;
-  mutable request_version : int * int;
+  mutable version : int * int;
 }
 (* TODO Get rid of the version field completely? At least don't expose it in
    Dream. It is only used internally on the server side to add the right
@@ -79,7 +79,7 @@ let request
     specific = {
       method_;
       target;
-      request_version = version;
+      version;
     };
     headers;
     client_stream;
@@ -94,13 +94,13 @@ let target request =
   request.specific.target
 
 let version request =
-  request.specific.request_version
+  request.specific.version
 
 let set_method_ request method_ =
   request.specific.method_ <- (method_ :> method_)
 
 let set_version request version =
-  request.specific.request_version <- version
+  request.specific.version <- version
 
 
 
@@ -277,7 +277,7 @@ let rec pipeline middlewares handler =
 type 'a field = 'a Fields.key
 
 let new_field ?name ?show_value () =
-  Fields.Key.create (name, show_value)
+  Fields.Key.create {name; show_value}
 
 let field message key =
   Fields.find key message.fields
@@ -288,7 +288,8 @@ let set_field message key value =
 let fold_fields f initial message =
   Fields.fold (fun (B (key, value)) accumulator ->
     match Fields.Key.info key with
-    | Some name, Some show_value -> f name (show_value value) accumulator
+    | {name = Some name; show_value = Some show_value} ->
+      f name (show_value value) accumulator
     | _ -> accumulator)
     message.fields
     initial

From 6f3b2a235a66db418af62334015f868bb89d7c57 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 21 Dec 2021 13:32:44 +0300
Subject: [PATCH 108/312] mv inmost.ml message.ml

---
 src/cipher/cipher.ml                 |  10 +--
 src/dream.ml                         | 100 +++++++++++++--------------
 src/graphql/graphql.ml               |  40 +++++------
 src/http/adapt.ml                    |  12 ++--
 src/http/error_handler.ml            |  34 ++++-----
 src/http/error_handler.mli           |  12 ++--
 src/http/http.ml                     |  28 ++++----
 src/pure/{inmost.ml => message.ml}   |   0
 src/pure/{inmost.mli => message.mli} |   0
 src/server/catch.ml                  |  12 ++--
 src/server/content_length.ml         |  10 +--
 src/server/cookie.ml                 |   6 +-
 src/server/echo.ml                   |   6 +-
 src/server/flash.ml                  |   8 +--
 src/server/form.ml                   |   6 +-
 src/server/helpers.ml                |  44 ++++++------
 src/server/log.ml                    |  26 +++----
 src/server/lowercase_headers.ml      |   8 +--
 src/server/origin_referrer_check.ml  |  16 ++---
 src/server/query.ml                  |   4 +-
 src/server/router.ml                 |  37 +++++-----
 src/server/router.mli                |  36 +++++-----
 src/server/session.ml                |  16 ++---
 src/server/site_prefix.ml            |   4 +-
 src/server/upload.ml                 |  22 +++---
 src/sql/sql.ml                       |  12 ++--
 src/unix/static.ml                   |  18 ++---
 27 files changed, 264 insertions(+), 263 deletions(-)
 rename src/pure/{inmost.ml => message.ml} (100%)
 rename src/pure/{inmost.mli => message.mli} (100%)

diff --git a/src/cipher/cipher.ml b/src/cipher/cipher.ml
index 75577d3f..9eaaabca 100644
--- a/src/cipher/cipher.ml
+++ b/src/cipher/cipher.ml
@@ -13,7 +13,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 
 
 
@@ -119,7 +119,7 @@ struct
 end
 
 let secrets_field =
-  Dream.new_field
+  Message.new_field
     ~name:"dream.secret"
     ~show_value:(fun _secrets -> "[redacted]")
     ()
@@ -131,19 +131,19 @@ let secrets_field =
 let set_secret ?(old_secrets = []) secret =
   let value = secret::old_secrets in
   fun next_handler request ->
-    Dream.set_field request secrets_field value;
+    Message.set_field request secrets_field value;
     next_handler request
 
 let fallback_secrets =
   lazy [Random.random 32]
 
 let encryption_secret request =
-  match Dream.field request secrets_field with
+  match Message.field request secrets_field with
   | Some secrets -> List.hd secrets
   | None -> List.hd (Lazy.force fallback_secrets)
 
 let decryption_secrets request =
-  match Dream.field request secrets_field with
+  match Message.field request secrets_field with
   | Some secrets -> secrets
   | None -> Lazy.force fallback_secrets
 
diff --git a/src/dream.ml b/src/dream.ml
index 0254ac88..72d291cb 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -10,7 +10,6 @@ module Cipher = Dream__cipher.Cipher
 module Cookie = Dream__server.Cookie
 module Content_length = Dream__server.Content_length
 module Csrf = Dream__server.Csrf
-module Dream = Dream_pure.Inmost
 module Echo = Dream__server.Echo
 module Error_handler = Dream__http.Error_handler
 module Flash = Dream__server.Flash
@@ -20,6 +19,7 @@ module Graphql = Dream__graphql.Graphql
 module Helpers = Dream__server.Helpers
 module Http = Dream__http.Http
 module Lowercase_headers = Dream__server.Lowercase_headers
+module Message = Dream_pure.Message
 module Method = Dream_pure.Method
 module Origin_referrer_check = Dream__server.Origin_referrer_check
 module Query = Dream__server.Query
@@ -68,16 +68,16 @@ end
 
 (* Types *)
 
-type request = Dream.request
-type response = Dream.response
-type handler = Dream.handler
-type middleware = Dream.middleware
+type request = Message.request
+type response = Message.response
+type handler = Message.handler
+type middleware = Message.middleware
 type route = Router.route
 
-type 'a message = 'a Dream.message
-type client = Dream.client
-type server = Dream.server
-type 'a promise = 'a Dream.promise
+type 'a message = 'a Message.message
+type client = Message.client
+type server = Message.server
+type 'a promise = 'a Message.promise
 
 
 
@@ -97,13 +97,13 @@ include Status
 
 let client = Helpers.client
 let https = Helpers.https
-let method_ = Dream.method_
-let target = Dream.target
+let method_ = Message.method_
+let target = Message.target
 let prefix = Router.prefix
 let path = Router.path
-let version = Dream.version
+let version = Message.version
 let set_client = Helpers.set_client
-let set_method_ = Dream.set_method_
+let set_method_ = Message.set_method_
 let query = Query.query
 let queries = Query.queries
 let all_queries = Query.all_queries
@@ -120,19 +120,19 @@ let redirect = Helpers.redirect
 let empty = Helpers.empty
 let stream = Helpers.stream
 let websocket = Helpers.websocket
-let status = Dream.status
+let status = Message.status
 
 
 
 (* Headers *)
 
-let header = Dream.header
-let headers = Dream.headers
-let all_headers = Dream.all_headers
-let has_header = Dream.has_header
-let add_header = Dream.add_header
-let drop_header = Dream.drop_header
-let set_header = Dream.set_header
+let header = Message.header
+let headers = Message.headers
+let all_headers = Message.all_headers
+let has_header = Message.has_header
+let add_header = Message.add_header
+let drop_header = Message.drop_header
+let set_header = Message.set_header
 
 
 
@@ -147,18 +147,18 @@ let all_cookies = Cookie.all_cookies
 
 (* Bodies *)
 
-let body = Dream.body
-let set_body = Dream.set_body
-let read = Dream.read
-let write = Dream.write
-let flush = Dream.flush
-let close = Dream.close
+let body = Message.body
+let set_body = Message.set_body
+let read = Message.read
+let write = Message.write
+let flush = Message.flush
+let close = Message.close
 type buffer = Stream.buffer
 type stream = Stream.stream
-let client_stream = Dream.client_stream
-let server_stream = Dream.server_stream
-let set_client_stream = Dream.set_client_stream
-let set_server_stream = Dream.set_server_stream
+let client_stream = Message.client_stream
+let server_stream = Message.server_stream
+let set_client_stream = Message.set_client_stream
+let set_server_stream = Message.set_server_stream
 let read_stream = Stream.read
 let ready_stream = Stream.ready
 let write_stream = Stream.write
@@ -199,8 +199,8 @@ let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
 
 (* Middleware *)
 
-let no_middleware = Dream.no_middleware
-let pipeline = Dream.pipeline
+let no_middleware = Message.no_middleware
+let pipeline = Message.pipeline
 
 
 
@@ -295,7 +295,7 @@ let set_log_level = Log.set_log_level
 
 type error = Catch.error = {
   condition : [
-    | `Response of Dream.response
+    | `Response of Message.response
     | `String of string
     | `Exn of exn
   ];
@@ -310,8 +310,8 @@ type error = Catch.error = {
     | `Server
     | `Client
   ];
-  request : Dream.request option;
-  response : Dream.response option;
+  request : Message.request option;
+  response : Message.response option;
   client : string option;
   severity : Log.log_level;
   will_send_response : bool;
@@ -350,10 +350,10 @@ let decrypt = Cipher.decrypt
 
 (* Custom fields *)
 
-type 'a field = 'a Dream.field
-let new_field = Dream.new_field
-let field = Dream.field
-let set_field = Dream.set_field
+type 'a field = 'a Message.field
+let new_field = Message.new_field
+let field = Message.field
+let set_field = Message.set_field
 
 
 
@@ -372,7 +372,7 @@ let test ?(prefix = "") handler request =
 
   Lwt_main.run (app request)
 
-let sort_headers = Dream.sort_headers
+let sort_headers = Message.sort_headers
 let echo = Echo.echo
 
 
@@ -384,11 +384,11 @@ let with_client client message =
   message
 
 let with_method_ method_ message =
-  Dream.set_method_ message method_;
+  Message.set_method_ message method_;
   message
 
 let with_version version message =
-  Dream.set_version message version;
+  Message.set_version message version;
   message
 
 let with_path path message =
@@ -396,11 +396,11 @@ let with_path path message =
   message
 
 let with_header name value message =
-  Dream.set_header message name value;
+  Message.set_header message name value;
   message
 
 let with_body body message =
-  Dream.set_body message body;
+  Message.set_body message body;
   message
 
 let with_stream message =
@@ -415,17 +415,17 @@ let write_buffer ?(offset = 0) ?length message chunk =
   let string = Bigstringaf.substring chunk ~off:offset ~len:length in
   write ~kind:`Binary message string
 
-type websocket = Dream.response
+type websocket = Message.response
 let send = write
 let receive = read
 let close_websocket = close
 
-type 'a local = 'a Dream.field
-let new_local = Dream.new_field
-let local = Dream.field
+type 'a local = 'a Message.field
+let new_local = Message.new_field
+let local = Message.field
 
 let with_local key value message =
-  Dream.set_field message key value;
+  Message.set_field message key value;
   message
 
 let first message =
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index 8f1014b3..d338e480 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -5,9 +5,9 @@
 
 
 
-module Dream = Dream_pure.Inmost
 module Helpers = Dream__server.Helpers
 module Log = Dream__server.Log
+module Message = Dream_pure.Message
 module Method = Dream_pure.Method
 module Stream = Dream_pure.Stream
 
@@ -79,7 +79,7 @@ let operation_id json =
   Yojson.Basic.Util.(json |> member "id" |> to_string_option)
 
 let close_and_clean ?code subscriptions response =
-  let%lwt () = Dream.close ?code response in
+  let%lwt () = Message.close ?code response in
   Hashtbl.iter (fun _ close -> close ()) subscriptions;
   Lwt.return_unit
 
@@ -116,7 +116,7 @@ let complete_message id =
 (* TODO Test client complete racing against a stream. *)
 let handle_over_websocket make_context schema subscriptions request response =
   let rec loop inited =
-    match%lwt Dream.read response with
+    match%lwt Message.read response with
     | None ->
       log.info (fun log -> log ~request "GraphQL WebSocket closed by client");
       close_and_clean subscriptions response
@@ -145,7 +145,7 @@ let handle_over_websocket make_context schema subscriptions request response =
         close_and_clean subscriptions response ~code:4429
       end
       else begin
-        let%lwt () = Dream.write response ack_message in
+        let%lwt () = Message.write response ack_message in
         loop true
       end
 
@@ -193,13 +193,13 @@ let handle_over_websocket make_context schema subscriptions request response =
               log.warning (fun log ->
                 log ~request
                   "subscribe: error %s" (Yojson.Basic.to_string json));
-              Dream.write response (error_message id json)
+              Message.write response (error_message id json)
 
             (* It's not clear that this case ever occurs, because graphql-ws is
                only used for subscriptions, at the protocol level. *)
             | Ok (`Response json) ->
-              let%lwt () = Dream.write response (data_message id json) in
-              let%lwt () = Dream.write response (complete_message id) in
+              let%lwt () = Message.write response (data_message id json) in
+              let%lwt () = Message.write response (complete_message id) in
               Lwt.return_unit
 
             | Ok (`Stream (stream, close)) ->
@@ -216,15 +216,15 @@ let handle_over_websocket make_context schema subscriptions request response =
               let%lwt () =
                 stream |> Lwt_stream.iter_s (function
                   | Ok json ->
-                    Dream.write response (data_message id json)
+                    Message.write response (data_message id json)
                   | Error json ->
                     log.warning (fun log ->
                       log ~request
                         "Subscription: error %s" (Yojson.Basic.to_string json));
-                    Dream.write response (error_message id json))
+                    Message.write response (error_message id json))
               in
 
-              let%lwt () = Dream.write response (complete_message id) in
+              let%lwt () = Message.write response (complete_message id) in
               Hashtbl.remove subscriptions id;
               Lwt.return_unit
 
@@ -240,12 +240,12 @@ let handle_over_websocket make_context schema subscriptions request response =
 
             try%lwt
               let%lwt () =
-                Dream.write
+                Message.write
                   response
                   (error_message id (make_error "Internal Server Error"))
               in
               if !subscribed then
-                Dream.write response (complete_message id)
+                Message.write response (complete_message id)
               else
                 Lwt.return_unit
             with _ ->
@@ -271,10 +271,10 @@ let handle_over_websocket make_context schema subscriptions request response =
    carrying WebSocket upgrade headers. *)
 
 let graphql make_context schema = fun request ->
-  match Dream.method_ request with
+  match Message.method_ request with
   | `GET ->
-    let upgrade = Dream.header request "Upgrade"
-    and protocol = Dream.header request "Sec-WebSocket-Protocol" in
+    let upgrade = Message.header request "Upgrade"
+    and protocol = Message.header request "Sec-WebSocket-Protocol" in
     begin match upgrade, protocol with
     | Some "websocket", Some "graphql-transport-ws" ->
       Helpers.websocket
@@ -285,14 +285,14 @@ let graphql make_context schema = fun request ->
       (* TODO Simplify stream creation. *)
       let client_stream = Stream.(stream empty no_writer)
       and server_stream = Stream.(stream no_reader no_writer) in
-      Dream.response ~status:`Not_Found client_stream server_stream
+      Message.response ~status:`Not_Found client_stream server_stream
       |> Lwt.return
     end
 
   | `POST ->
-    begin match Dream.header request "Content-Type" with
+    begin match Message.header request "Content-Type" with
     | Some "application/json" ->
-      let%lwt body = Dream.body request in
+      let%lwt body = Message.body request in
       (* TODO This almost certainly raises exceptions... *)
       let json = Yojson.Basic.from_string body in
 
@@ -316,7 +316,7 @@ let graphql make_context schema = fun request ->
         "Content-Type not 'application/json'");
       let client_stream = Stream.(stream empty no_writer)
       and server_stream = Stream.(stream no_reader no_writer) in
-      Dream.response ~status:`Bad_Request client_stream server_stream
+      Message.response ~status:`Bad_Request client_stream server_stream
       |> Lwt.return
     end
 
@@ -325,7 +325,7 @@ let graphql make_context schema = fun request ->
       "Method %s; must be GET or POST" (Method.method_to_string method_));
     let client_stream = Stream.(stream empty no_writer)
     and server_stream = Stream.(stream no_reader no_writer) in
-    Dream.response ~status:`Not_Found client_stream server_stream
+    Message.response ~status:`Not_Found client_stream server_stream
     |> Lwt.return
 
 
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index 3613b379..045a970f 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -5,8 +5,8 @@
 
 
 
-module Dream = Dream_pure.Inmost
 module Stream = Dream_pure.Stream
+module Message = Dream_pure.Message
 
 
 
@@ -20,16 +20,16 @@ let address_to_string : Unix.sockaddr -> string = function
 (* TODO Write a test simulating client exit during SSE; this was killing the
    server at some point. *)
 let forward_body_general
-    (response : Dream.response)
+    (response : Message.response)
     (_write_string : ?off:int -> ?len:int -> string -> unit)
-    (write_buffer : ?off:int -> ?len:int -> Dream.buffer -> unit)
+    (write_buffer : ?off:int -> ?len:int -> Message.buffer -> unit)
     http_flush
     close =
 
   let bytes_since_flush = ref 0 in
 
   let rec send () =
-    Dream.client_stream response
+    Message.client_stream response
     |> fun stream ->
       Stream.read
         stream
@@ -64,7 +64,7 @@ let forward_body_general
   send ()
 
 let forward_body
-    (response : Dream.response)
+    (response : Message.response)
     (body : Httpaf.Body.Writer.t) =
 
   forward_body_general
@@ -75,7 +75,7 @@ let forward_body
     (fun _code -> Httpaf.Body.Writer.close body)
 
 let forward_body_h2
-    (response : Dream.response)
+    (response : Message.response)
     (body : [ `write ] H2.Body.t) =
 
   forward_body_general
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 4089bbad..4b14ecfa 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -6,11 +6,11 @@
 
 
 module Catch = Dream__server.Catch
-module Dream = Dream_pure.Inmost
 module Error_template = Dream__server.Error_template
 module Method = Dream_pure.Method
 module Helpers = Dream__server.Helpers
 module Log = Dream__server.Log
+module Message = Dream_pure.Message
 module Status = Dream_pure.Status
 module Stream = Dream_pure.Stream
 
@@ -38,7 +38,7 @@ let dump (error : Catch.error) =
 
   begin match error.condition with
   | `Response response ->
-    let status = Dream.status response in
+    let status = Message.status response in
     p "%i %s\n" (Status.status_to_int status) (Status.status_to_string status)
 
   | `String "" ->
@@ -90,16 +90,16 @@ let dump (error : Catch.error) =
   begin match error.request with
   | None -> ()
   | Some request ->
-    let major, minor = Dream.version request in
+    let major, minor = Message.version request in
     p "\n\n%s %s HTTP/%i.%i"
-      (Method.method_to_string (Dream.method_ request))
-      (Dream.target request)
+      (Method.method_to_string (Message.method_ request))
+      (Message.target request)
       major minor;
 
-    Dream.all_headers request
+    Message.all_headers request
     |> List.iter (fun (name, value) -> p "\n%s: %s" name value);
 
-    Dream.fold_fields (fun name value first ->
+    Message.fold_fields (fun name value first ->
       if first then
         p "\n";
       p "\n%s: %s" name value;
@@ -176,7 +176,7 @@ let customize template (error : Catch.error) =
         (* TODO Simplify the streams creation. *)
         let client_stream = Stream.(stream empty no_writer)
         and server_stream = Stream.(stream no_reader no_writer) in
-        Dream.response ~status client_stream server_stream
+        Message.response ~status client_stream server_stream
     in
 
     (* No need to catch errors when calling the template, because every call
@@ -192,11 +192,11 @@ let default_template _error _debug_dump response =
   Lwt.return response
 
 let debug_template _error debug_dump response =
-  let status = Dream.status response in
+  let status = Message.status response in
   let code = Status.status_to_int status
   and reason = Status.status_to_string status in
-  Dream.set_header response "Content-Type" Dream_pure.Formats.text_html;
-  Dream.set_body response (Error_template.render ~debug_dump ~code ~reason);
+  Message.set_header response "Content-Type" Dream_pure.Formats.text_html;
+  Message.set_body response (Error_template.render ~debug_dump ~code ~reason);
   Lwt.return response
 
 let default =
@@ -241,13 +241,13 @@ let respond_with_option f =
           (* TODO Simplify streams. *)
           let client_stream = Stream.(stream empty no_writer)
           and server_stream = Stream.(stream no_reader no_writer) in
-          Dream.response
+          Message.response
             ~status:`Internal_Server_Error client_stream server_stream))
     (fun () ->
       (* TODO Simplify streams. *)
       let client_stream = Stream.(stream empty no_writer)
       and server_stream = Stream.(stream no_reader no_writer) in
-      Dream.response
+      Message.response
         ~status:`Internal_Server_Error client_stream server_stream
       |> Lwt.return)
 
@@ -274,11 +274,11 @@ let default_response = function
   | `Server ->
     let client_stream = Stream.(stream empty no_writer)
     and server_stream = Stream.(stream no_reader no_writer) in
-    Dream.response ~status:`Internal_Server_Error client_stream server_stream
+    Message.response ~status:`Internal_Server_Error client_stream server_stream
   | `Client ->
     let client_stream = Stream.(stream empty no_writer)
     and server_stream = Stream.(stream no_reader no_writer) in
-    Dream.response ~status:`Bad_Request client_stream server_stream
+    Message.response ~status:`Bad_Request client_stream server_stream
 
 let httpaf
     user's_error_handler =
@@ -328,7 +328,7 @@ let httpaf
         | None -> default_response caused_by
       in
 
-      let headers = Httpaf.Headers.of_list (Dream.all_headers response) in
+      let headers = Httpaf.Headers.of_list (Message.all_headers response) in
       let body = start_response headers in
 
       Adapt.forward_body response body;
@@ -386,7 +386,7 @@ let h2
         | None -> default_response caused_by
       in
 
-      let headers = H2.Headers.of_list (Dream.all_headers response) in
+      let headers = H2.Headers.of_list (Message.all_headers response) in
       let body = start_response headers in
 
       Adapt.forward_body_h2 response body;
diff --git a/src/http/error_handler.mli b/src/http/error_handler.mli
index 5e96f6fe..285469b5 100644
--- a/src/http/error_handler.mli
+++ b/src/http/error_handler.mli
@@ -6,8 +6,8 @@
 
 
 module Catch = Dream__server.Catch
-module Dream = Dream_pure.Inmost
 module Log = Dream__server.Log
+module Message = Dream_pure.Message
 
 
 
@@ -17,7 +17,7 @@ module Log = Dream__server.Log
 val default : Catch.error_handler
 val debug_error_handler : Catch.error_handler
 val customize :
-  (Catch.error -> string -> Dream.response -> Dream.response Lwt.t) ->
+  (Catch.error -> string -> Message.response -> Message.response Lwt.t) ->
     Catch.error_handler
 
 
@@ -35,7 +35,7 @@ val customize :
 
 val app :
   Catch.error_handler ->
-    (Catch.error -> Dream.response Lwt.t)
+    (Catch.error -> Message.response Lwt.t)
 
 val httpaf :
   Catch.error_handler ->
@@ -51,13 +51,13 @@ val tls :
 
 val websocket :
   Catch.error_handler ->
-  Dream.request ->
-  Dream.response ->
+  Message.request ->
+  Message.response ->
     (Websocketaf.Wsd.t -> [ `Exn of exn ] -> unit)
 
 val websocket_handshake :
   Catch.error_handler ->
-    (Dream.request -> Dream.response -> string -> Dream.response Lwt.t)
+    (Message.request -> Message.response -> string -> Message.response Lwt.t)
 
 
 
diff --git a/src/http/http.ml b/src/http/http.ml
index c910ae82..df0e9660 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -7,10 +7,10 @@
 
 module Catch = Dream__server.Catch
 module Content_length = Dream__server.Content_length
-module Dream = Dream_pure.Inmost
 module Helpers = Dream__server.Helpers
 module Log = Dream__server.Log
 module Lowercase_headers = Dream__server.Lowercase_headers
+module Message = Dream_pure.Message
 module Method = Dream_pure.Method
 module Status = Dream_pure.Status
 module Stream = Dream_pure.Stream
@@ -205,11 +205,11 @@ let websocket_handler response socket =
   in
 
   let reader = Stream.reader ~read ~close in
-  Stream.forward reader (Dream.client_stream response);
+  Stream.forward reader (Message.client_stream response);
 
   let rec outgoing_loop () =
     Stream.read
-      (Dream.client_stream response)
+      (Message.client_stream response)
       ~data:(fun buffer offset length binary fin ->
         (* Until https://github.com/anmonteiro/websocketaf/issues/33. *)
         if not fin then
@@ -277,7 +277,7 @@ let websocket_handler response socket =
 let wrap_handler
     https
     (user's_error_handler : Catch.error_handler)
-    (user's_dream_handler : Dream.handler) =
+    (user's_dream_handler : Message.handler) =
 
   let httpaf_request_handler = fun client_address (conn : _ Gluten.Reqd.t) ->
     Log.set_up_exception_hook ();
@@ -318,7 +318,7 @@ let wrap_handler
     let body =
       Stream.stream body Stream.no_writer in
 
-    let request : Dream.request =
+    let request : Message.request =
       Helpers.request ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
@@ -347,7 +347,7 @@ let wrap_handler
               transmit the resulting error response. *)
         let forward_response response =
           let headers =
-            Httpaf.Headers.of_list (Dream.all_headers response) in
+            Httpaf.Headers.of_list (Message.all_headers response) in
 
           (* let version =
             match Dream.version_override response with
@@ -355,7 +355,7 @@ let wrap_handler
             | Some (major, minor) -> Some Httpaf.Version.{major; minor}
           in *)
           let status =
-            to_httpaf_status (Dream.status response) in
+            to_httpaf_status (Message.status response) in
           (* let reason =
             Dream.reason_override response in *)
 
@@ -383,7 +383,7 @@ let wrap_handler
           in
 
           let headers =
-            Httpaf.Headers.of_list (Dream.all_headers response) in
+            Httpaf.Headers.of_list (Message.all_headers response) in
 
           Websocketaf.Handshake.respond_with_upgrade ~headers ~sha1 conn proceed
           |> function
@@ -413,7 +413,7 @@ let wrap_handler
 let wrap_handler_h2
     https
     (_user's_error_handler : Catch.error_handler)
-    (user's_dream_handler : Dream.handler) =
+    (user's_dream_handler : Message.handler) =
 
   let httpaf_request_handler = fun client_address (conn : H2.Reqd.t) ->
     Log.set_up_exception_hook ();
@@ -448,7 +448,7 @@ let wrap_handler_h2
     let body =
       Stream.stream body Stream.no_writer in
 
-    let request : Dream.request =
+    let request : Message.request =
       Helpers.request ~client ~method_ ~target ~https ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
@@ -470,9 +470,9 @@ let wrap_handler_h2
 
         let forward_response response =
           let headers =
-            H2.Headers.of_list (Dream.all_headers response) in
+            H2.Headers.of_list (Message.all_headers response) in
           let status =
-            to_h2_status (Dream.status response) in
+            to_h2_status (Message.status response) in
           let h2_response =
             H2.Response.create ~headers status in
           let body =
@@ -515,7 +515,7 @@ type tls_library = {
   create_handler :
     certificate_file:string ->
     key_file:string ->
-    handler:Dream.handler ->
+    handler:Message.handler ->
     error_handler:Catch.error_handler ->
       Unix.sockaddr ->
       Lwt_unix.file_descr ->
@@ -608,7 +608,7 @@ let ocaml_tls = {
 
 
 let built_in_middleware error_handler =
-  Dream.pipeline [
+  Message.pipeline [
     Lowercase_headers.lowercase_headers;
     Content_length.content_length;
     Catch.catch (Error_handler.app error_handler);
diff --git a/src/pure/inmost.ml b/src/pure/message.ml
similarity index 100%
rename from src/pure/inmost.ml
rename to src/pure/message.ml
diff --git a/src/pure/inmost.mli b/src/pure/message.mli
similarity index 100%
rename from src/pure/inmost.mli
rename to src/pure/message.mli
diff --git a/src/server/catch.ml b/src/server/catch.ml
index 8922c062..da550b78 100644
--- a/src/server/catch.ml
+++ b/src/server/catch.ml
@@ -5,14 +5,14 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 module Status = Dream_pure.Status
 
 
 
 type error = {
   condition : [
-    | `Response of Dream.response
+    | `Response of Message.response
     | `String of string
     | `Exn of exn
   ];
@@ -27,14 +27,14 @@ type error = {
     | `Server
     | `Client
   ];
-  request : Dream.request option;
-  response : Dream.response option;
+  request : Message.request option;
+  response : Message.response option;
   client : string option;
   severity : Log.log_level;
   will_send_response : bool;
 }
 
-type error_handler = error -> Dream.response option Dream.promise
+type error_handler = error -> Message.response option Message.promise
 
 (* This error handler actually *is* a middleware, but it is just one pathway for
    reaching the centralized error handler provided by the user, so it is built
@@ -49,7 +49,7 @@ let catch error_handler next_handler request =
       next_handler request)
 
     (fun response ->
-      let status = Dream.status response in
+      let status = Message.status response in
 
       (* TODO Overfull hbox. *)
       if Status.is_client_error status || Status.is_server_error status then begin
diff --git a/src/server/content_length.ml b/src/server/content_length.ml
index ba7a6338..4c411ea8 100644
--- a/src/server/content_length.ml
+++ b/src/server/content_length.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 
 
 
@@ -15,10 +15,10 @@ module Dream = Dream_pure.Inmost
 (* Add a Content-Length header to HTTP 1.x responses that have a fixed body but
    don't yet have the header. *)
 let content_length next_handler request =
-  if fst (Dream.version request) <> 1 then
+  if fst (Message.version request) <> 1 then
     next_handler request
   else
-    let%lwt (response : Dream.response) = next_handler request in
-    if not (Dream.has_header response "Transfer-Encoding") then
-      Dream.add_header response "Transfer-Encoding" "chunked";
+    let%lwt (response : Message.response) = next_handler request in
+    if not (Message.has_header response "Transfer-Encoding") then
+      Message.add_header response "Transfer-Encoding" "chunked";
     Lwt.return response
diff --git a/src/server/cookie.ml b/src/server/cookie.ml
index 84742f08..fdb9e450 100644
--- a/src/server/cookie.ml
+++ b/src/server/cookie.ml
@@ -6,8 +6,8 @@
 
 
 module Cipher = Dream__cipher.Cipher
-module Dream = Dream_pure.Inmost
 module Formats = Dream_pure.Formats
+module Message = Dream_pure.Message
 
 
 
@@ -24,7 +24,7 @@ module Formats = Dream_pure.Formats
 (* TODO DOC We allow multiple headers sent by the client, to support HTTP/2.
    What is this about? *)
 let all_cookies request =
-  Dream.headers request "Cookie"
+  Message.headers request "Cookie"
   |> List.map Formats.from_cookie
   |> List.flatten
 
@@ -132,7 +132,7 @@ let set_cookie
       ?expires ?max_age ?domain ?path ~secure ~http_only ?same_site name value
   in
 
-  Dream.add_header response "Set-Cookie" set_cookie
+  Message.add_header response "Set-Cookie" set_cookie
 
 let drop_cookie
     ?prefix ?domain ?path ?secure ?http_only ?same_site name request response =
diff --git a/src/server/echo.ml b/src/server/echo.ml
index 2a9fb8b0..3e5f076f 100644
--- a/src/server/echo.ml
+++ b/src/server/echo.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 module Stream = Dream_pure.Stream
 
 
@@ -14,7 +14,7 @@ module Stream = Dream_pure.Stream
 let echo request =
   (* TODO Simplfy this code. Can in fact just pass the request's server stream
      as the response's client stream. *)
-  let client_stream = Dream.server_stream request in
+  let client_stream = Message.server_stream request in
   let server_stream = Stream.(stream no_reader no_writer) in
-  Dream.response client_stream server_stream
+  Message.response client_stream server_stream
   |> Lwt.return
diff --git a/src/server/flash.ml b/src/server/flash.ml
index 17e0640c..254c2567 100644
--- a/src/server/flash.ml
+++ b/src/server/flash.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 
 
 
@@ -16,7 +16,7 @@ let five_minutes =
   5. *. 60.
 
 let storage_field =
-  Dream.new_field ~name:"dream.flash" ()
+  Message.new_field ~name:"dream.flash" ()
 
 let flash_cookie =
   "dream.flash"
@@ -53,7 +53,7 @@ let flash request =
 
 let put_flash request category message =
   let outbox =
-    match Dream.field request storage_field with
+    match Message.field request storage_field with
     | Some outbox -> outbox
     | None ->
       let message = "Missing flash message middleware" in
@@ -75,7 +75,7 @@ let flash_messages inner_handler request =
     else
       log ~request "%s" "No flash messages.");
   let outbox = ref [] in
-  Dream.set_field request storage_field outbox;
+  Message.set_field request storage_field outbox;
   let existing = Cookie.cookie request flash_cookie in
   let%lwt response = inner_handler request in
   let entries = List.rev !outbox in
diff --git a/src/server/form.ml b/src/server/form.ml
index 98871168..d9f4284b 100644
--- a/src/server/form.ml
+++ b/src/server/form.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 
 
 
@@ -55,9 +55,9 @@ let sort_and_check_form ~now to_value form request =
     Lwt.return (`Many_tokens form)
 
 let form ?(csrf = true) ~now request =
-  match Dream.header request "Content-Type" with
+  match Message.header request "Content-Type" with
   | Some "application/x-www-form-urlencoded" ->
-    let%lwt body = Dream.body request in
+    let%lwt body = Message.body request in
     let form = Dream_pure.Formats.from_form_urlencoded body in
     if csrf then
     sort_and_check_form ~now (fun string -> string) form request
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index 27c48c4f..7f7975af 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -5,15 +5,15 @@
 
 
 
-module Dream = Dream_pure.Inmost
 module Formats = Dream_pure.Formats
+module Message = Dream_pure.Message
 module Status = Dream_pure.Status
 module Stream = Dream_pure.Stream
 
 
 
 let client_field =
-  Dream.new_field
+  Message.new_field
     ~name:"dream.client"
     ~show_value:(fun client -> client)
     ()
@@ -21,28 +21,28 @@ let client_field =
 (* TODO What should be reported when the client address is missing? This is a
    sign of local testing. *)
 let client request =
-  match Dream.field request client_field with
+  match Message.field request client_field with
   | None -> "127.0.0.1:0"
   | Some client -> client
 
 let set_client request client =
-  Dream.set_field request client_field client
+  Message.set_field request client_field client
 
 
 
 let https_field =
-  Dream.new_field
+  Message.new_field
     ~name:"dream.https"
     ~show_value:string_of_bool
     ()
 
 let https request =
-  match Dream.field request https_field with
+  match Message.field request https_field with
   | Some true -> true
   | _ -> false
 
 let set_https request https =
-  Dream.set_field request https_field https
+  Message.set_field request https_field https
 
 
 
@@ -50,7 +50,7 @@ let request ~client ~method_ ~target ~https ~version ~headers server_stream =
   (* TODO Use pre-allocated streams. *)
   let client_stream = Stream.(stream no_reader no_writer) in
   let request =
-    Dream.request
+    Message.request
       ~method_ ~target ~version ~headers client_stream server_stream in
   set_client request client;
   set_https request https;
@@ -60,7 +60,7 @@ let request_with_body ?method_ ?target ?version ?headers body =
   (* TODO Streams. *)
   let client_stream = Stream.(stream no_reader no_writer)
   and server_stream = Stream.(stream (string body) no_writer) in
-  Dream.request ?method_ ?target ?version ?headers client_stream server_stream
+  Message.request ?method_ ?target ?version ?headers client_stream server_stream
 
 
 
@@ -69,8 +69,8 @@ let html ?status ?code ?headers body =
   let client_stream = Stream.(stream (string body) no_writer)
   and server_stream = Stream.(stream no_reader no_writer) in
   let response =
-    Dream.response ?status ?code ?headers client_stream server_stream in
-  Dream.set_header response "Content-Type" Formats.text_html;
+    Message.response ?status ?code ?headers client_stream server_stream in
+  Message.set_header response "Content-Type" Formats.text_html;
   Lwt.return response
 
 let json ?status ?code ?headers body =
@@ -78,20 +78,20 @@ let json ?status ?code ?headers body =
   let client_stream = Stream.(stream (string body) no_writer)
   and server_stream = Stream.(stream no_reader no_writer) in
   let response =
-    Dream.response ?status ?code ?headers client_stream server_stream in
-  Dream.set_header response "Content-Type" Formats.application_json;
+    Message.response ?status ?code ?headers client_stream server_stream in
+  Message.set_header response "Content-Type" Formats.application_json;
   Lwt.return response
 
 let response_with_body ?status ?code ?headers body =
   (* TODO Streams. *)
   let client_stream = Stream.(stream (string body) no_writer)
   and server_stream = Stream.(stream no_reader no_writer) in
-  Dream.response ?status ?code ?headers client_stream server_stream
+  Message.response ?status ?code ?headers client_stream server_stream
 
 let respond ?status ?code ?headers body =
   let client_stream = Stream.(stream (string body) no_writer)
   and server_stream = Stream.(stream no_reader no_writer) in
-  Dream.response ?status ?code ?headers client_stream server_stream
+  Message.response ?status ?code ?headers client_stream server_stream
   |> Lwt.return
 
 (* TODO Actually use the request and extract the site prefix. *)
@@ -106,8 +106,8 @@ let redirect ?status ?code ?headers _request location =
   let client_stream = Stream.(stream empty no_writer)
   and server_stream = Stream.(stream no_reader no_writer) in
   let response =
-    Dream.response ?status ?code ?headers client_stream server_stream in
-  Dream.set_header response "Location" location;
+    Message.response ?status ?code ?headers client_stream server_stream in
+  Message.set_header response "Location" location;
   Lwt.return response
 
 let stream ?status ?code ?headers callback =
@@ -115,7 +115,7 @@ let stream ?status ?code ?headers callback =
   let client_stream = Stream.stream reader Stream.no_writer
   and server_stream = Stream.stream Stream.no_reader writer in
   let response =
-    Dream.response ?status ?code ?headers client_stream server_stream in
+    Message.response ?status ?code ?headers client_stream server_stream in
   (* TODO Should set up an error handler for this. YES. *)
   (* TODO Make sure the request id is propagated to the callback. *)
   let wrapped_callback _ = Lwt.async (fun () -> callback response) in
@@ -123,13 +123,13 @@ let stream ?status ?code ?headers callback =
   Lwt.return response
 
 let websocket_field =
-  Dream.new_field
+  Message.new_field
     ~name:"dream.websocket"
     ~show_value:(Printf.sprintf "%b")
     ()
 
 let is_websocket response =
-  match Dream.field response websocket_field with
+  match Message.field response websocket_field with
   | Some true -> true
   | _ -> false
 
@@ -140,9 +140,9 @@ let websocket ?headers callback =
   let client_stream = Stream.stream out_reader in_writer
   and server_stream = Stream.stream in_reader out_writer in
   let response =
-    Dream.response
+    Message.response
       ~status:`Switching_Protocols ?headers client_stream server_stream in
-  Dream.set_field response websocket_field true;
+  Message.set_field response websocket_field true;
   (* TODO Make sure the request id is propagated to the callback. *)
   let wrapped_callback _ = Lwt.async (fun () -> callback response) in
   Stream.ready server_stream ~close:wrapped_callback wrapped_callback;
diff --git a/src/server/log.ml b/src/server/log.ml
index ff5cebd7..f2a664f2 100644
--- a/src/server/log.ml
+++ b/src/server/log.ml
@@ -27,7 +27,7 @@
    This is sufficient for attaching a request id to most log messages, in
    practice. *)
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 module Method = Dream_pure.Method
 module Status = Dream_pure.Status
 
@@ -76,7 +76,7 @@ let id_lwt_key : string Lwt.key =
 (* The actual request id "field" associated with each request by the logger. If
    this field is missing, the logger assigns the request a fresh id. *)
 let id_field =
-  Dream.new_field
+  Message.new_field
     ~name:request_id_label
     ~show_value:(fun id -> id)
     ()
@@ -86,7 +86,7 @@ let get_request_id ?request () =
   let request_id =
     match request with
     | None -> None
-    | Some request -> Dream.field request id_field
+    | Some request -> Message.field request id_field
   in
   match request_id with
   | Some _ -> request_id
@@ -294,7 +294,7 @@ let initialized () : [ `Initialized ] =
 
 (* The "front end." *)
 type ('a, 'b) conditional_log =
-  ((?request:Dream.request ->
+  ((?request:Message.request ->
    ('a, Stdlib.Format.formatter, unit, 'b) Stdlib.format4 -> 'a) -> 'b) ->
     unit
 
@@ -470,25 +470,25 @@ struct
 
     (* Get the requwst's id or assign a new one. *)
     let id =
-      match Dream.field request id_field with
+      match Message.field request id_field with
       | Some id -> id
       | None ->
         last_id := !last_id + 1;
         let id = string_of_int !last_id in
-        Dream.set_field request id_field id;
+        Message.set_field request id_field id;
         id
     in
 
     (* Identify the request in the log. *)
     let user_agent =
-      Dream.headers request "User-Agent"
+      Message.headers request "User-Agent"
       |> String.concat " "
     in
 
     log.info (fun log ->
       log ~request "%s %s %s %s"
-        (Method.method_to_string (Dream.method_ request))
-        (Dream.target request)
+        (Method.method_to_string (Message.method_ request))
+        (Message.target request)
         (Helpers.client request)
         user_agent);
 
@@ -501,17 +501,17 @@ struct
         (* Log the elapsed time. If the response is a redirection, log the
            target. *)
         let location =
-          if Status.is_redirection (Dream.status response) then
-            match Dream.header response "Location" with
+          if Status.is_redirection (Message.status response) then
+            match Message.header response "Location" with
             | Some location -> " " ^ location
             | None -> ""
           else ""
         in
 
-        let status = Dream.status response in
+        let status = Message.status response in
 
         let report :
-          (?request:Dream.request ->
+          (?request:Message.request ->
             ('a, Format.formatter, unit, 'b) format4 -> 'a) -> 'b =
             fun log ->
           let elapsed = now () -. start in
diff --git a/src/server/lowercase_headers.ml b/src/server/lowercase_headers.ml
index 590f52bc..b3ff584f 100644
--- a/src/server/lowercase_headers.ml
+++ b/src/server/lowercase_headers.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 
 
 
@@ -16,8 +16,8 @@ module Dream = Dream_pure.Inmost
    lowercase. Another option is to use memoization to reduce GC pressure. *)
 let lowercase_headers inner_handler request =
   let%lwt response = inner_handler request in
-  if fst (Dream.version request) <> 1 then
-    Dream.all_headers response
+  if fst (Message.version request) <> 1 then
+    Message.all_headers response
     |> List.map (fun (name, value) -> String.lowercase_ascii name, value)
-    |> Dream.set_all_headers response;
+    |> Message.set_all_headers response;
   Lwt.return response
diff --git a/src/server/origin_referrer_check.ml b/src/server/origin_referrer_check.ml
index 93d5c415..edba9856 100644
--- a/src/server/origin_referrer_check.ml
+++ b/src/server/origin_referrer_check.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 module Stream = Dream_pure.Stream
 
 
@@ -16,14 +16,14 @@ let log =
 (* TODO Rename all next_handler to inner_handler. *)
 let origin_referrer_check inner_handler request =
 
-  match Dream.method_ request with
+  match Message.method_ request with
   | `GET | `HEAD ->
     inner_handler request
 
   | _ ->
     let origin =
-      match Dream.header request "Origin" with
-      | Some "null" | None -> Dream.header request "Referer"
+      match Message.header request "Origin" with
+      | Some "null" | None -> Message.header request "Referer"
       | Some _ as origin -> origin
     in
 
@@ -34,19 +34,19 @@ let origin_referrer_check inner_handler request =
       (* TODO Simplify. *)
       let client_stream = Stream.(stream empty no_writer)
       and server_stream = Stream.(stream no_reader no_writer) in
-      Dream.response ~status:`Bad_Request client_stream server_stream
+      Message.response ~status:`Bad_Request client_stream server_stream
       |> Lwt.return
 
     (* TODO Also recommend Uri to users. *)
     | Some origin ->
 
-      match Dream.header request "Host" with
+      match Message.header request "Host" with
       | None ->
         log.warning (fun log -> log ~request "Host header missing");
         (* TODO Simplify. *)
         let client_stream = Stream.(stream empty no_writer)
         and server_stream = Stream.(stream no_reader no_writer) in
-        Dream.response ~status:`Bad_Request client_stream server_stream
+        Message.response ~status:`Bad_Request client_stream server_stream
         |> Lwt.return
 
       | Some host ->
@@ -84,6 +84,6 @@ let origin_referrer_check inner_handler request =
           (* TODO Simplify. *)
           let client_stream = Stream.(stream empty no_writer)
           and server_stream = Stream.(stream no_reader no_writer) in
-          Dream.response ~status:`Bad_Request client_stream server_stream
+          Message.response ~status:`Bad_Request client_stream server_stream
           |> Lwt.return
         end
diff --git a/src/server/query.ml b/src/server/query.ml
index cba19087..be91420a 100644
--- a/src/server/query.ml
+++ b/src/server/query.ml
@@ -8,8 +8,8 @@
 (* TODO Long-term, query string handler is likely to become part of the
    router. *)
 
-module Dream = Dream_pure.Inmost
 module Formats = Dream_pure.Formats
+module Message = Dream_pure.Message
 
 
 
@@ -23,7 +23,7 @@ module Formats = Dream_pure.Formats
       |> String.concat ", ") *)
 
 let all_queries request =
-  Dream.target request
+  Message.target request
   |> Formats.split_target
   |> snd
   |> Formats.from_form_urlencoded
diff --git a/src/server/router.ml b/src/server/router.ml
index 108837ea..a5170a72 100644
--- a/src/server/router.ml
+++ b/src/server/router.ml
@@ -5,8 +5,8 @@
 
 
 
-module Dream = Dream_pure.Inmost
 module Formats = Dream_pure.Formats
+module Message = Dream_pure.Message
 module Method = Dream_pure.Method
 
 
@@ -93,7 +93,7 @@ let rec strip_empty_trailing_token = function
 
 
 type method_set = [
-  | Dream.method_
+  | Method.method_
   | `Any
 ]
 
@@ -103,7 +103,7 @@ let method_matches method_set method_ =
   | `Any -> true
 
 type node =
-  | Handler of method_set * Dream.handler
+  | Handler of method_set * Message.handler
   | Scope of route
 
 and route = (token list * node) list
@@ -165,8 +165,8 @@ let scope prefix middlewares routes =
 
 
 
-let path_field : string list Dream.field =
-  Dream.new_field
+let path_field : string list Message.field =
+  Message.new_field
     ~name:"dream.path"
     ~show_value:(fun path -> String.concat "/" path)
     ()
@@ -175,24 +175,25 @@ let path_field : string list Dream.field =
    string. *)
 (* TODO Remove this from the API. *)
 let path the_request =
-  match Dream.field the_request path_field with
+  match Message.field the_request path_field with
   | Some path -> path
   | None ->
-    Dream.(Formats.(the_request |> target |> split_target |> fst |> from_path))
+    Message.(Formats.(
+      the_request |> target |> split_target |> fst |> from_path))
 
 (* TODO Move site_prefix into this file and remove with_path from the API. *)
 let set_path request path =
-  Dream.set_field request path_field path
+  Message.set_field request path_field path
 
 (* Prefix is stored backwards. *)
-let prefix_field : string list Dream.field =
-  Dream.new_field
+let prefix_field : string list Message.field =
+  Message.new_field
     ~name:"dream.prefix"
     ~show_value:(fun prefix -> String.concat "/" (List.rev prefix))
     ()
 
 let internal_prefix request =
-  match Dream.field request prefix_field with
+  match Message.field request prefix_field with
   | Some prefix -> prefix
   | None -> []
 
@@ -200,10 +201,10 @@ let prefix request =
   Formats.make_path (List.rev (internal_prefix request))
 
 let set_prefix request prefix =
-  Dream.set_field request prefix_field prefix
+  Message.set_field request prefix_field prefix
 
-let params_field : (string * string) list Dream.field =
-  Dream.new_field
+let params_field : (string * string) list Message.field =
+  Message.new_field
     ~name:"dream.params"
     ~show_value:(fun params ->
       params
@@ -222,7 +223,7 @@ let missing_param request name =
   failwith message
 
 let param request name =
-  match Dream.field request params_field with
+  match Message.field request params_field with
   | None -> missing_param request name
   | Some params ->
     try List.assoc name params
@@ -260,8 +261,8 @@ let router routes =
     and try_node bindings prefix path node is_wildcard ok fail =
       match node with
       | Handler (method_, handler)
-          when method_matches method_ (Dream.method_ request) ->
-        Dream.set_field request params_field bindings;
+          when method_matches method_ (Message.method_ request) ->
+        Message.set_field request params_field bindings;
         if is_wildcard then begin
           set_prefix request prefix;
           set_path request path;
@@ -279,7 +280,7 @@ let router routes =
     in
 
     let params =
-      match Dream.field request params_field with
+      match Message.field request params_field with
       | Some params -> params
       | None -> []
     in
diff --git a/src/server/router.mli b/src/server/router.mli
index 4d71e769..e94855c2 100644
--- a/src/server/router.mli
+++ b/src/server/router.mli
@@ -5,37 +5,37 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 
 type route
 
 (* Leaf routes. *)
-val get : string -> Dream.handler -> route
-val post : string -> Dream.handler -> route
-val put : string -> Dream.handler -> route
-val delete : string -> Dream.handler -> route
-val head : string -> Dream.handler -> route
-val connect : string -> Dream.handler -> route
-val options : string -> Dream.handler -> route
-val trace : string -> Dream.handler -> route
-val patch : string -> Dream.handler -> route
-val any : string -> Dream.handler -> route
+val get : string -> Message.handler -> route
+val post : string -> Message.handler -> route
+val put : string -> Message.handler -> route
+val delete : string -> Message.handler -> route
+val head : string -> Message.handler -> route
+val connect : string -> Message.handler -> route
+val options : string -> Message.handler -> route
+val trace : string -> Message.handler -> route
+val patch : string -> Message.handler -> route
+val any : string -> Message.handler -> route
 val no_route : route
 
 (* Route groups. *)
-val scope : string -> Dream.middleware list -> route list -> route
+val scope : string -> Message.middleware list -> route list -> route
 
 (* The middleware and the path parameter retriever. With respect to path
    parameters, the middleware is the setter, and the retriever is, of course,
    the getter. *)
-val router : route list -> Dream.middleware
-val param : Dream.request -> string -> string
+val router : route list -> Message.middleware
+val param : Message.request -> string -> string
 
 (* Variables used by the router. *)
-val path : Dream.request -> string list
-val prefix : Dream.request -> string
-val set_path : Dream.request -> string list -> unit
-val set_prefix : Dream.request -> string list -> unit
+val path : Message.request -> string list
+val prefix : Message.request -> string
+val set_path : Message.request -> string list -> unit
+val set_prefix : Message.request -> string list -> unit
 
 (**/**)
 
diff --git a/src/server/session.ml b/src/server/session.ml
index d7169597..a8e092c6 100644
--- a/src/server/session.ml
+++ b/src/server/session.ml
@@ -7,7 +7,7 @@
 
 (* https://cheatsheetseries.owasp.org/cheatsheets/Session_Management_Cheat_Sheet.html *)
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 
 
 
@@ -15,18 +15,18 @@ let log =
   Log.sub_log "dream.session"
 
 type 'a back_end = {
-  load : Dream.request -> 'a Lwt.t;
-  send : 'a -> Dream.request -> Dream.response -> Dream.response Lwt.t;
+  load : Message.request -> 'a Lwt.t;
+  send : 'a -> Message.request -> Message.response -> Message.response Lwt.t;
 }
 
 let middleware field back_end = fun inner_handler request ->
   let%lwt session = back_end.load request in
-  Dream.set_field request field session;
+  Message.set_field request field session;
   let%lwt response = inner_handler request in
   back_end.send session request response
 
 let getter field request =
-  match Dream.field request field with
+  match Message.field request field with
   | Some session ->
     session
   | None ->
@@ -35,12 +35,12 @@ let getter field request =
     failwith message
 
 type 'a typed_middleware = {
-  middleware : 'a back_end -> Dream.middleware;
-  getter : Dream.request -> 'a;
+  middleware : 'a back_end -> Message.middleware;
+  getter : Message.request -> 'a;
 }
 
 let typed_middleware ?show_value () =
-  let field = Dream.new_field ~name:"dream.session" ?show_value () in
+  let field = Message.new_field ~name:"dream.session" ?show_value () in
   {
     middleware = middleware field;
     getter = getter field;
diff --git a/src/server/site_prefix.ml b/src/server/site_prefix.ml
index cb64e463..210c0993 100644
--- a/src/server/site_prefix.ml
+++ b/src/server/site_prefix.ml
@@ -5,8 +5,8 @@
 
 
 
-module Dream = Dream_pure.Inmost
 module Formats = Dream_pure.Formats
+module Message = Dream_pure.Message
 module Stream = Dream_pure.Stream
 
 
@@ -38,7 +38,7 @@ let with_site_prefix prefix =
       (* TODO Streams. *)
       let client_stream = Stream.(stream empty no_writer)
       and server_stream = Stream.(stream no_reader no_writer) in
-      Dream.response ~status:`Bad_Gateway client_stream server_stream
+      Message.response ~status:`Bad_Gateway client_stream server_stream
       |> Lwt.return
     | Some path ->
       (* TODO This doesn't need to be recomputed on each request - can cache the
diff --git a/src/server/upload.ml b/src/server/upload.ml
index 9417c255..0b983c61 100644
--- a/src/server/upload.ml
+++ b/src/server/upload.ml
@@ -5,7 +5,7 @@
 
 
 
-module Dream = Dream_pure.Inmost
+module Message = Dream_pure.Message
 
 
 
@@ -30,8 +30,8 @@ let initial_multipart_state () = {
 }
 
 (* TODO Dump the value of the multipart state somehow? *)
-let multipart_state_field : multipart_state Dream.field =
-  Dream.new_field
+let multipart_state_field : multipart_state Message.field =
+  Message.new_field
     ~name:"dream.multipart"
     ()
 
@@ -40,7 +40,7 @@ let multipart_state_field : multipart_state Dream.field =
 let multipart_state _request =
   assert false
 
-let field_to_string (request : Dream.request) field =
+let field_to_string (request : Message.request) field =
   let open Multipart_form in
   match field with
   | Field.Field (field_name, Field.Content_type, v) ->
@@ -57,7 +57,7 @@ let field_to_string (request : Dream.request) field =
 
 let log = Log.sub_log "dream.upload"
 
-let upload_part (request : Dream.request) =
+let upload_part (request : Message.request) =
   let state = multipart_state request in
   match%lwt Lwt_stream.peek state.stream with
   | None -> Lwt.return_none
@@ -74,7 +74,7 @@ let identify _ = object end
 
 type part = string option * string option * ((string * string) list)
 
-let rec state (request : Dream.request) =
+let rec state (request : Message.request) =
   let state' = multipart_state request in
   let stream = state'.stream in
   match%lwt Lwt_stream.peek stream with
@@ -89,14 +89,14 @@ let rec state (request : Dream.request) =
       state'.name, state'.filename, headers in
     Lwt.return (Some part)
 
-and upload (request : Dream.request) =
+and upload (request : Message.request) =
   let state' = multipart_state request in
   match state'.state_init with
   | false ->
     state request
 
   | true ->
-    let content_type = match Dream.header request "Content-Type" with
+    let content_type = match Message.header request "Content-Type" with
     | Some content_type ->
       Result.to_option
         (Multipart_form.Content_type.of_string (content_type ^ "\r\n"))
@@ -112,7 +112,7 @@ and upload (request : Dream.request) =
       failwith message
 
     | Some content_type ->
-      let body = Lwt_stream.from (fun () -> Dream.read request) in
+      let body = Lwt_stream.from (fun () -> Message.read request) in
       let `Parse th, stream =
         Multipart_form_lwt.stream ~identify body content_type in
       Lwt.async (fun () -> let%lwt _ = th in Lwt.return_unit);
@@ -125,14 +125,14 @@ type multipart_form =
 module Map = Map.Make (String)
 
 let multipart ?(csrf=true) ~now request =
-  let content_type = match Dream.header request "Content-Type" with
+  let content_type = match Message.header request "Content-Type" with
     | Some content_type ->
       Result.to_option (Multipart_form.Content_type.of_string (content_type ^ "\r\n"))
     | None -> None in
   match content_type with
   | None -> Lwt.return `Wrong_content_type
   | Some content_type ->
-    let body = Lwt_stream.from (fun () -> Dream.read request) in
+    let body = Lwt_stream.from (fun () -> Message.read request) in
     match%lwt Multipart_form_lwt.of_stream_to_list body content_type with
     | Error (`Msg _err) ->
       Lwt.return `Wrong_content_type (* XXX(dinosaure): better error? *)
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index 234343f8..a46d763c 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -5,8 +5,8 @@
 
 
 
-module Dream = Dream_pure.Inmost
 module Log = Dream__server.Log
+module Message = Dream_pure.Message
 
 
 
@@ -14,8 +14,8 @@ let log =
   Log.sub_log "dream.sql"
 
 (* TODO Debug metadata for the pools. *)
-let pool_field : (_, Caqti_error.t) Caqti_lwt.Pool.t Dream.field =
-  Dream.new_field ()
+let pool_field : (_, Caqti_error.t) Caqti_lwt.Pool.t Message.field =
+  Message.new_field ()
 
 let foreign_keys_on =
   Caqti_request.exec Caqti_type.unit "PRAGMA foreign_keys = ON"
@@ -31,7 +31,7 @@ let sql_pool ?size uri =
 
   begin match !pool_cell with
   | Some pool ->
-    Dream.set_field request pool_field pool;
+    Message.set_field request pool_field pool;
     inner_handler request
   | None ->
     (* The correctness of this code is subtle. There is no race condition with
@@ -47,7 +47,7 @@ let sql_pool ?size uri =
     match pool with
     | Ok pool ->
       pool_cell := Some pool;
-      Dream.set_field request pool_field pool;
+      Message.set_field request pool_field pool;
       inner_handler request
     | Error error ->
       (* Deliberately raise an exception so that it can be communicated to any
@@ -60,7 +60,7 @@ let sql_pool ?size uri =
   end
 
 let sql request callback =
-  match Dream.field request pool_field with
+  match Message.field request pool_field with
   | None ->
     let message = "Dream.sql: no pool; did you apply Dream.sql_pool?" in
     log.error (fun log -> log ~request "%s" message);
diff --git a/src/unix/static.ml b/src/unix/static.ml
index 7a163bbf..6353d1ec 100644
--- a/src/unix/static.ml
+++ b/src/unix/static.ml
@@ -5,8 +5,8 @@
 
 
 
-module Dream = Dream_pure.Inmost
 module Formats = Dream_pure.Formats
+module Message = Dream_pure.Message
 module Method = Dream_pure.Method
 module Router = Dream__server.Router
 module Stream = Dream_pure.Stream
@@ -35,13 +35,13 @@ let from_filesystem local_root path _ =
         (* TODO Can use some pre-allocated streams or helpers here and below. *)
         let client_stream = Stream.(stream (string content) no_writer)
         and server_stream = Stream.(stream no_reader no_writer) in
-        Dream.response ~headers:(mime_lookup path) client_stream server_stream
+        Message.response ~headers:(mime_lookup path) client_stream server_stream
         |> Lwt.return))
     (fun _exn ->
       (* TODO Improve the two-stream code using some helper. *)
       let client_stream = Stream.(stream empty no_writer)
       and server_stream = Stream.(stream no_reader no_writer) in
-      Dream.response ~status:`Not_Found client_stream server_stream
+      Message.response ~status:`Not_Found client_stream server_stream
       |> Lwt.return)
 
 (* TODO Add ETag handling. *)
@@ -79,11 +79,11 @@ let validate_path request =
 
 let static ?(loader = from_filesystem) local_root = fun request ->
 
-  if not @@ Method.methods_equal (Dream.method_ request) `GET then
+  if not @@ Method.methods_equal (Message.method_ request) `GET then
     (* TODO Simplify this code and reduce allocations. *)
     let client_stream = Stream.(stream empty no_writer)
     and server_stream = Stream.(stream no_reader no_writer) in
-    Dream.response ~status:`Not_Found client_stream server_stream
+    Message.response ~status:`Not_Found client_stream server_stream
     |> Lwt.return
 
   else
@@ -92,19 +92,19 @@ let static ?(loader = from_filesystem) local_root = fun request ->
       (* TODO Improve with helpers. *)
       let client_stream = Stream.(stream empty no_writer)
       and server_stream = Stream.(stream no_reader no_writer) in
-      Dream.response ~status:`Not_Found client_stream server_stream
+      Message.response ~status:`Not_Found client_stream server_stream
       |> Lwt.return
 
     | Some path ->
       let%lwt response = loader local_root path request in
-      if not (Dream.has_header response "Content-Type") then begin
-        match Dream.status response with
+      if not (Message.has_header response "Content-Type") then begin
+        match Message.status response with
         | `OK
         | `Non_Authoritative_Information
         | `No_Content
         | `Reset_Content
         | `Partial_Content ->
-          Dream.add_header response "Content-Type" (Magic_mime.lookup path)
+          Message.add_header response "Content-Type" (Magic_mime.lookup path)
         | _ ->
           ()
       end;

From 812bcad8c4a5bf1ef6c739ed76b56bbf09874250 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 21 Dec 2021 13:41:33 +0300
Subject: [PATCH 109/312] message.mli: prune type abbreviations

---
 src/http/adapt.ml    |  2 +-
 src/pure/message.ml  | 16 +++++-----------
 src/pure/message.mli | 32 +++++++++++++-------------------
 3 files changed, 19 insertions(+), 31 deletions(-)

diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index 045a970f..8d23af2a 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -22,7 +22,7 @@ let address_to_string : Unix.sockaddr -> string = function
 let forward_body_general
     (response : Message.response)
     (_write_string : ?off:int -> ?len:int -> string -> unit)
-    (write_buffer : ?off:int -> ?len:int -> Message.buffer -> unit)
+    (write_buffer : ?off:int -> ?len:int -> Stream.buffer -> unit)
     http_flush
     close =
 
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 6620e29a..a53c4427 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -7,12 +7,6 @@
 
 (* Type abbreviations and modules used in defining the primary types *)
 
-type method_ = Method.method_
-type status = Status.status
-
-type stream = Stream.stream
-type buffer = Stream.buffer
-
 type 'a promise = 'a Lwt.t
 
 type 'a field_metadata = {
@@ -26,7 +20,7 @@ module Fields = Hmap.Make (struct type 'a t = 'a field_metadata end)
 (* Messages (requests and responses) *)
 
 type client = {
-  mutable method_ : method_;
+  mutable method_ : Method.method_;
   target : string;
   mutable version : int * int;
 }
@@ -37,7 +31,7 @@ type client = {
    some middleware to decide which headers to add. *)
 
 type server = {
-  status : status;
+  status : Status.status;
 }
 
 type 'a message = {
@@ -71,7 +65,7 @@ let request
     server_stream =
 
   let method_ =
-    match (method_ :> method_ option) with
+    match (method_ :> Method.method_ option) with
     | None -> `GET
     | Some method_ -> method_
   in
@@ -97,7 +91,7 @@ let version request =
   request.specific.version
 
 let set_method_ request method_ =
-  request.specific.method_ <- (method_ :> method_)
+  request.specific.method_ <- (method_ :> Method.method_)
 
 let set_version request version =
   request.specific.version <- version
@@ -110,7 +104,7 @@ let response ?status ?code ?(headers = []) client_stream server_stream =
   let status =
     match status, code with
     | None, None -> `OK
-    | Some status, _ -> (status :> status)
+    | Some status, _ -> (status :> Status.status)
     | None, Some code -> Status.int_to_status code
   in
   {
diff --git a/src/pure/message.mli b/src/pure/message.mli
index e6089e82..9865a988 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -19,40 +19,34 @@ type 'a promise = 'a Lwt.t
 type handler = request -> response promise
 type middleware = handler -> handler
 
-type method_ = Method.method_
-type status = Status.status
-
-type stream = Stream.stream
-type buffer = Stream.buffer
-
 
 
 val request :
-  ?method_:[< method_ ] ->
+  ?method_:[< Method.method_ ] ->
   ?target:string ->
   ?version:int * int ->
   ?headers:(string * string) list ->
-  stream ->
-  stream ->
+  Stream.stream ->
+  Stream.stream ->
     request
 
-val method_ : request -> method_
+val method_ : request -> Method.method_
 val target : request -> string
 val version : request -> int * int
-val set_method_ : request -> [< method_ ] -> unit
+val set_method_ : request -> [< Method.method_ ] -> unit
 val set_version : request -> int * int -> unit
 
 
 
 val response :
-  ?status:[< status ] ->
+  ?status:[< Status.status ] ->
   ?code:int ->
   ?headers:(string * string) list ->
-  stream ->
-  stream ->
+  Stream.stream ->
+  Stream.stream ->
     response
 
-val status : response -> status
+val status : response -> Status.status
 
 
 
@@ -74,10 +68,10 @@ val read : 'a message -> string option promise
 val write : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
 val flush : response -> unit promise
 val close : ?code:int -> 'a message -> unit promise
-val client_stream : 'a message -> stream
-val server_stream : 'a message -> stream
-val set_client_stream : 'a message -> stream -> unit
-val set_server_stream : 'a message -> stream -> unit
+val client_stream : 'a message -> Stream.stream
+val server_stream : 'a message -> Stream.stream
+val set_client_stream : 'a message -> Stream.stream -> unit
+val set_server_stream : 'a message -> Stream.stream -> unit
 
 
 

From 4fbb0c56f4e64ff83d41324e7720ef4d3effc039 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 22 Dec 2021 00:10:44 +0300
Subject: [PATCH 110/312] dream-pure does not depend on multipart_form

---
 src/pure/dune | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/pure/dune b/src/pure/dune
index 093a25cf..76415568 100644
--- a/src/pure/dune
+++ b/src/pure/dune
@@ -4,7 +4,6 @@
  (libraries
   base64
   bigstringaf
-  multipart_form
   hmap
   lwt
   uri

From a8357030aa4ea8d6ae0e1996dfd8fd258facc857 Mon Sep 17 00:00:00 2001
From: Felix Krull <f_krull@gmx.de>
Date: Tue, 21 Dec 2021 22:26:16 +0100
Subject: [PATCH 111/312] dream-pure depends on lwt_ppx (#186)

---
 dream-pure.opam | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dream-pure.opam b/dream-pure.opam
index 19c3b80c..6f6b7f26 100644
--- a/dream-pure.opam
+++ b/dream-pure.opam
@@ -18,6 +18,7 @@ depends: [
   "dune" {>= "2.7.0"}  # --instrument-with.
   "hmap"
   "lwt"
+  "lwt_ppx" {>= "1.2.2"}
   "ocaml" {>= "4.08.0"}
   "ptime" {>= "0.8.1"}  # Ptime.weekday.
   "uri" {>= "4.2.0"}

From fe537f4aa9382f0198f193f1704beb71366977aa Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 22 Dec 2021 00:28:19 +0300
Subject: [PATCH 112/312] dream-httpaf uses lwt_ppx

---
 dream-httpaf.opam | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dream-httpaf.opam b/dream-httpaf.opam
index 40c1509d..443479ee 100644
--- a/dream-httpaf.opam
+++ b/dream-httpaf.opam
@@ -15,6 +15,7 @@ maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 depends: [
   "dune" {>= "2.7.0"}  # --instrument-with.
   "lwt"
+  "lwt_ppx" {>= "1.2.2"}
   "lwt_ssl"
   "ocaml" {>= "4.08.0"}
   "ssl" {>= "0.5.8"}  # Ssl.get_negotiated_alpn_protocol.

From 8e7c711dda728382f8b6903efc48c6d2771d2008 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 22 Dec 2021 01:04:33 +0300
Subject: [PATCH 113/312] Fix memory sessions (silly typo during refactor)

---
 src/server/session.ml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/server/session.ml b/src/server/session.ml
index a8e092c6..45289987 100644
--- a/src/server/session.ml
+++ b/src/server/session.ml
@@ -176,8 +176,7 @@ struct
     Lwt.return (operations ~now:gettimeofday hash_table lifetime session dirty, session)
 
   let send ~now (operations, session) request response =
-    if operations.dirty then
-    if not operations.dirty then begin
+    if operations.dirty then begin
       let id = version_session_id !session.id in
       let max_age = !session.expires_at -. now () in
       Cookie.set_cookie

From 95f6a6f895050a9d3191d5d10715b09a034f415a Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 22 Dec 2021 01:00:21 +0300
Subject: [PATCH 114/312] Restore multipart upload state

---
 src/server/upload.ml | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/server/upload.ml b/src/server/upload.ml
index 0b983c61..b8009069 100644
--- a/src/server/upload.ml
+++ b/src/server/upload.ml
@@ -35,10 +35,13 @@ let multipart_state_field : multipart_state Message.field =
     ~name:"dream.multipart"
     ()
 
-(* TODO This would be MUCH easier if requests were mutable. It's probably best
-   to just break multipart until then, and have the branch be "unstable." *)
-let multipart_state _request =
-  assert false
+let multipart_state request =
+  match Message.field request multipart_state_field with
+  | Some state -> state
+  | None ->
+    let state = initial_multipart_state () in
+    Message.set_field request multipart_state_field state;
+    state
 
 let field_to_string (request : Message.request) field =
   let open Multipart_form in

From 56504439b67bb74195ba9ff0fc86eefadac5a1fe Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 22 Dec 2021 01:26:04 +0300
Subject: [PATCH 115/312] Fix Dream.set_body

---
 src/dream.mli             | 1 +
 src/http/error_handler.ml | 5 ++---
 src/pure/message.ml       | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index ba6a754a..225eade2 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2018,6 +2018,7 @@ type error_handler = error -> response option promise
 
     The behavior of Dream's default error handler is described at
     {!Dream.type-error}. *)
+(* TODO Get rid of the option? *)
 
 val error_template :
   (error -> string -> response -> response promise) -> error_handler
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 4b14ecfa..6b952ee4 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -182,9 +182,8 @@ let customize template (error : Catch.error) =
     (* No need to catch errors when calling the template, because every call
        site of the error handler already has error handlers for catching double
        faults. *)
-    response
-    |> template error debug_dump
-    |> Lwt.map (fun response -> Some response)
+    let%lwt response = template error debug_dump response in
+    Lwt.return (Some response)
 
 
 
diff --git a/src/pure/message.ml b/src/pure/message.ml
index a53c4427..3eb6588f 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -198,7 +198,7 @@ let set_body message body =
     else
       Stream.(stream (string body) no_writer)
   in
-  message.server_stream <- body
+  message.client_stream <- body
 
 let read message =
   Stream.read_convenience message.server_stream

From 3acb3cc79923e8d8ff426cbc6ef91b7d7cd292b6 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 22 Dec 2021 01:35:45 +0300
Subject: [PATCH 116/312] Cache body promises when using Dream.body

Fixes #185.
---
 src/pure/message.ml | 62 ++++++++++++++++++++++++++++-----------------
 1 file changed, 39 insertions(+), 23 deletions(-)

diff --git a/src/pure/message.ml b/src/pure/message.ml
index 3eb6588f..4ae6b884 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -177,29 +177,6 @@ let sort_headers headers =
 
 (* Streams *)
 
-(* TODO NOTE On the client, this will read the client stream until close. *)
-let body message =
-  Stream.read_until_close message.server_stream
-
-(* TODO NOTE In Dream, this should operate on response server_streams. In Hyper,
-   it should operate on request client_streams, although there is no very good
-   reason why it can't operate on general messages, which might be useful in
-   middlewares that preprocess requests on the server and postprocess responses
-   on the client. Or.... shouldn't this affect the client stream on the server,
-   replacing its read end? *)
-let set_body message body =
-  (* TODO This is partially redundant with a length check in Stream.string, but
-     that check is no longer useful as it prevents allocation of only a reader,
-     rather than a complete stream. *)
-  let body =
-    if String.length body = 0 then
-      (* TODO Should probably preallocate this as a stream. *)
-      Stream.(stream empty no_writer)
-    else
-      Stream.(stream (string body) no_writer)
-  in
-  message.client_stream <- body
-
 let read message =
   Stream.read_convenience message.server_stream
 
@@ -287,3 +264,42 @@ let fold_fields f initial message =
     | _ -> accumulator)
     message.fields
     initial
+
+
+
+(* Whole-body access *)
+
+(* TODO Show the value somehow. *)
+let body_field : string promise field =
+  new_field
+    ~name:"dream.body"
+    ()
+
+(* TODO NOTE On the client, this will read the client stream until close. *)
+let body message =
+  match field message body_field with
+  | Some body_promise -> body_promise
+  | None ->
+    let body_promise = Stream.read_until_close message.server_stream in
+    set_field message body_field body_promise;
+    body_promise
+
+(* TODO Should usage of this function affect the body field? *)
+(* TODO NOTE In Dream, this should operate on response server_streams. In Hyper,
+   it should operate on request client_streams, although there is no very good
+   reason why it can't operate on general messages, which might be useful in
+   middlewares that preprocess requests on the server and postprocess responses
+   on the client. Or.... shouldn't this affect the client stream on the server,
+   replacing its read end? *)
+let set_body message body =
+  (* TODO This is partially redundant with a length check in Stream.string, but
+     that check is no longer useful as it prevents allocation of only a reader,
+     rather than a complete stream. *)
+  let body =
+    if String.length body = 0 then
+      (* TODO Should probably preallocate this as a stream. *)
+      Stream.(stream empty no_writer)
+    else
+      Stream.(stream (string body) no_writer)
+  in
+  message.client_stream <- body

From 2ecfc044d47433bc48808298f8fb9d6cc48affd5 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 22 Dec 2021 07:47:28 +0300
Subject: [PATCH 117/312] Package dream requires Alcotest for testing

---
 dream.opam | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dream.opam b/dream.opam
index f1d3f0f5..198b9bcd 100644
--- a/dream.opam
+++ b/dream.opam
@@ -75,6 +75,7 @@ depends: [
   "yojson"  # ...
 
   # Testing, development.
+  "alcotest" {with-test}
   "bisect_ppx" {with-test & >= "2.5.0"}  # --instrument-with.
   "caqti-driver-postgresql" {with-test}
   "caqti-driver-sqlite3" {with-test}

From 536c4a41db5f1735f8832d2735234e27bcd68702 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 22 Dec 2021 16:10:20 +0300
Subject: [PATCH 118/312] Provide some common pre-allocated streams

---
 src/graphql/graphql.ml              | 13 +++--------
 src/http/error_handler.ml           | 25 +++++----------------
 src/pure/message.ml                 | 12 +---------
 src/pure/stream.ml                  | 27 ++++++++++++++++++-----
 src/pure/stream.mli                 | 19 +++++++++-------
 src/server/echo.ml                  |  7 +-----
 src/server/helpers.ml               | 34 +++++++----------------------
 src/server/origin_referrer_check.ml | 15 +++----------
 src/server/site_prefix.ml           |  5 +----
 src/unix/static.ml                  | 21 +++++-------------
 10 files changed, 59 insertions(+), 119 deletions(-)

diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index d338e480..c09b3f46 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -282,10 +282,7 @@ let graphql make_context schema = fun request ->
         (handle_over_websocket make_context schema (Hashtbl.create 16) request)
     | _ ->
       log.warning (fun log -> log ~request "Upgrade: websocket header missing");
-      (* TODO Simplify stream creation. *)
-      let client_stream = Stream.(stream empty no_writer)
-      and server_stream = Stream.(stream no_reader no_writer) in
-      Message.response ~status:`Not_Found client_stream server_stream
+      Message.response ~status:`Not_Found Stream.empty Stream.null
       |> Lwt.return
     end
 
@@ -314,18 +311,14 @@ let graphql make_context schema = fun request ->
     | _ ->
       log.warning (fun log -> log ~request
         "Content-Type not 'application/json'");
-      let client_stream = Stream.(stream empty no_writer)
-      and server_stream = Stream.(stream no_reader no_writer) in
-      Message.response ~status:`Bad_Request client_stream server_stream
+      Message.response ~status:`Bad_Request Stream.empty Stream.null
       |> Lwt.return
     end
 
   | method_ ->
     log.error (fun log -> log ~request
       "Method %s; must be GET or POST" (Method.method_to_string method_));
-    let client_stream = Stream.(stream empty no_writer)
-    and server_stream = Stream.(stream no_reader no_writer) in
-    Message.response ~status:`Not_Found client_stream server_stream
+    Message.response ~status:`Not_Found Stream.empty Stream.null
     |> Lwt.return
 
 
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index 6b952ee4..f9c49efb 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -173,10 +173,7 @@ let customize template (error : Catch.error) =
           | `Server -> `Internal_Server_Error
           | `Client -> `Bad_Request
         in
-        (* TODO Simplify the streams creation. *)
-        let client_stream = Stream.(stream empty no_writer)
-        and server_stream = Stream.(stream no_reader no_writer) in
-        Message.response ~status client_stream server_stream
+        Message.response ~status Stream.empty Stream.null
     in
 
     (* No need to catch errors when calling the template, because every call
@@ -237,17 +234,10 @@ let respond_with_option f =
       |> Lwt.map (function
         | Some response -> response
         | None ->
-          (* TODO Simplify streams. *)
-          let client_stream = Stream.(stream empty no_writer)
-          and server_stream = Stream.(stream no_reader no_writer) in
           Message.response
-            ~status:`Internal_Server_Error client_stream server_stream))
+            ~status:`Internal_Server_Error Stream.empty Stream.null))
     (fun () ->
-      (* TODO Simplify streams. *)
-      let client_stream = Stream.(stream empty no_writer)
-      and server_stream = Stream.(stream no_reader no_writer) in
-      Message.response
-        ~status:`Internal_Server_Error client_stream server_stream
+      Message.response ~status:`Internal_Server_Error Stream.empty Stream.null
       |> Lwt.return)
 
 
@@ -268,16 +258,11 @@ let app
 
 
 
-(* TODO Simplify streams. *)
 let default_response = function
   | `Server ->
-    let client_stream = Stream.(stream empty no_writer)
-    and server_stream = Stream.(stream no_reader no_writer) in
-    Message.response ~status:`Internal_Server_Error client_stream server_stream
+    Message.response ~status:`Internal_Server_Error Stream.empty Stream.null
   | `Client ->
-    let client_stream = Stream.(stream empty no_writer)
-    and server_stream = Stream.(stream no_reader no_writer) in
-    Message.response ~status:`Bad_Request client_stream server_stream
+    Message.response ~status:`Bad_Request Stream.empty Stream.null
 
 let httpaf
     user's_error_handler =
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 4ae6b884..1701d4ef 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -292,14 +292,4 @@ let body message =
    on the client. Or.... shouldn't this affect the client stream on the server,
    replacing its read end? *)
 let set_body message body =
-  (* TODO This is partially redundant with a length check in Stream.string, but
-     that check is no longer useful as it prevents allocation of only a reader,
-     rather than a complete stream. *)
-  let body =
-    if String.length body = 0 then
-      (* TODO Should probably preallocate this as a stream. *)
-      Stream.(stream empty no_writer)
-    else
-      Stream.(stream (string body) no_writer)
-  in
-  message.client_stream <- body
+  message.client_stream <- Stream.string body
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 89a38501..f9443322 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -77,16 +77,23 @@ let no_writer = {
 let reader ~read ~close =
   {read; close}
 
-let empty =
+let null = {
+  reader = no_reader;
+  writer = no_writer;
+}
+
+let empty_reader =
   reader
     ~read:(fun ~data:_ ~close ~flush:_ ~ping:_ ~pong:_ -> close 1000)
     ~close:ignore
 
+let empty = {
+  reader = empty_reader;
+  writer = no_writer;
+}
+
 (* TODO This shows the awkwardness in string-to-string body reading. *)
-let string the_string =
-  if String.length the_string = 0 then
-    empty
-  else begin
+let string_reader the_string =
     (* Storing the string in a ref here so that we can "lose" it eagerly once
        the stream is closed, making the memory available to the GC. *)
     let string_ref = ref (Some the_string) in
@@ -108,7 +115,15 @@ let string the_string =
     in
 
     reader ~read ~close
-  end
+
+let string the_string =
+  if String.length the_string = 0 then
+    empty
+  else
+    {
+      reader = string_reader the_string;
+      writer = no_writer;
+    }
 
 let read stream ~data ~close ~flush =
   stream.reader.read ~data ~close ~flush
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index 19fdcf0f..be9f534f 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -41,14 +41,6 @@ val reader : read:read -> close:(int -> unit) -> reader
     response to {!Stream.close}. It doesn't need to call {!Stream.close} again
     on the stream. It should be used to free any underlying resources. *)
 
-val empty : reader
-(** A read-only stream whose reading function always calls its [~close]
-    callback. *)
-
-val string : string -> reader
-(** A read-only stream which calls its [~data] callback once with the contents
-    of the given string, and then always calls [~close]. *)
-
 val pipe : unit -> reader * writer
 (** A stream which matches each call of the reading function to one call of its
     writing functions. For example, calling {!Stream.flush} on a pipe will cause
@@ -64,6 +56,17 @@ val stream : reader -> writer -> stream
 (* TODO Consider tupling the arguments, as that will make it easier to pass the
    result of Stream.pipe. *)
 
+val null : stream
+(** A stream which is neither readable nor writable. *)
+
+val empty : stream
+(** A read-only stream whose reading function always calls its [~close]
+    callback. *)
+
+val string : string -> stream
+(** A read-only stream which calls its [~data] callback once with the contents
+    of the given string, and then always calls [~close]. *)
+
 val close : stream -> int -> unit
 (** Closes the given stream. Causes a pending reader or writer to call its
     [~close] callback. *)
diff --git a/src/server/echo.ml b/src/server/echo.ml
index 3e5f076f..093c652d 100644
--- a/src/server/echo.ml
+++ b/src/server/echo.ml
@@ -10,11 +10,6 @@ module Stream = Dream_pure.Stream
 
 
 
-(* TODO Convert to streaming later. *)
 let echo request =
-  (* TODO Simplfy this code. Can in fact just pass the request's server stream
-     as the response's client stream. *)
-  let client_stream = Message.server_stream request in
-  let server_stream = Stream.(stream no_reader no_writer) in
-  Message.response client_stream server_stream
+  Message.response (Message.server_stream request) Stream.null
   |> Lwt.return
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index 7f7975af..dae6cfdd 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -47,51 +47,36 @@ let set_https request https =
 
 
 let request ~client ~method_ ~target ~https ~version ~headers server_stream =
-  (* TODO Use pre-allocated streams. *)
-  let client_stream = Stream.(stream no_reader no_writer) in
   let request =
     Message.request
-      ~method_ ~target ~version ~headers client_stream server_stream in
+      ~method_ ~target ~version ~headers Stream.null server_stream in
   set_client request client;
   set_https request https;
   request
 
 let request_with_body ?method_ ?target ?version ?headers body =
-  (* TODO Streams. *)
-  let client_stream = Stream.(stream no_reader no_writer)
-  and server_stream = Stream.(stream (string body) no_writer) in
-  Message.request ?method_ ?target ?version ?headers client_stream server_stream
+  Message.request
+    ?method_ ?target ?version ?headers Stream.null (Stream.string body)
 
 
 
 let html ?status ?code ?headers body =
-  (* TODO The streams. *)
-  let client_stream = Stream.(stream (string body) no_writer)
-  and server_stream = Stream.(stream no_reader no_writer) in
   let response =
-    Message.response ?status ?code ?headers client_stream server_stream in
+    Message.response ?status ?code ?headers (Stream.string body) Stream.null in
   Message.set_header response "Content-Type" Formats.text_html;
   Lwt.return response
 
 let json ?status ?code ?headers body =
-  (* TODO The streams. *)
-  let client_stream = Stream.(stream (string body) no_writer)
-  and server_stream = Stream.(stream no_reader no_writer) in
   let response =
-    Message.response ?status ?code ?headers client_stream server_stream in
+    Message.response ?status ?code ?headers (Stream.string body) Stream.null in
   Message.set_header response "Content-Type" Formats.application_json;
   Lwt.return response
 
 let response_with_body ?status ?code ?headers body =
-  (* TODO Streams. *)
-  let client_stream = Stream.(stream (string body) no_writer)
-  and server_stream = Stream.(stream no_reader no_writer) in
-  Message.response ?status ?code ?headers client_stream server_stream
+  Message.response ?status ?code ?headers (Stream.string body) Stream.null
 
 let respond ?status ?code ?headers body =
-  let client_stream = Stream.(stream (string body) no_writer)
-  and server_stream = Stream.(stream no_reader no_writer) in
-  Message.response ?status ?code ?headers client_stream server_stream
+  Message.response ?status ?code ?headers (Stream.string body) Stream.null
   |> Lwt.return
 
 (* TODO Actually use the request and extract the site prefix. *)
@@ -102,11 +87,8 @@ let redirect ?status ?code ?headers _request location =
     | None, None -> Some (`See_Other)
     | _ -> status
   in
-  (* TODO The streams. *)
-  let client_stream = Stream.(stream empty no_writer)
-  and server_stream = Stream.(stream no_reader no_writer) in
   let response =
-    Message.response ?status ?code ?headers client_stream server_stream in
+    Message.response ?status ?code ?headers Stream.empty Stream.null in
   Message.set_header response "Location" location;
   Lwt.return response
 
diff --git a/src/server/origin_referrer_check.ml b/src/server/origin_referrer_check.ml
index edba9856..beb9fd55 100644
--- a/src/server/origin_referrer_check.ml
+++ b/src/server/origin_referrer_check.ml
@@ -31,10 +31,7 @@ let origin_referrer_check inner_handler request =
     | None ->
       log.warning (fun log -> log ~request
         "Origin and Referer headers both missing");
-      (* TODO Simplify. *)
-      let client_stream = Stream.(stream empty no_writer)
-      and server_stream = Stream.(stream no_reader no_writer) in
-      Message.response ~status:`Bad_Request client_stream server_stream
+      Message.response ~status:`Bad_Request Stream.empty Stream.null
       |> Lwt.return
 
     (* TODO Also recommend Uri to users. *)
@@ -43,10 +40,7 @@ let origin_referrer_check inner_handler request =
       match Message.header request "Host" with
       | None ->
         log.warning (fun log -> log ~request "Host header missing");
-        (* TODO Simplify. *)
-        let client_stream = Stream.(stream empty no_writer)
-        and server_stream = Stream.(stream no_reader no_writer) in
-        Message.response ~status:`Bad_Request client_stream server_stream
+        Message.response ~status:`Bad_Request Stream.empty Stream.null
         |> Lwt.return
 
       | Some host ->
@@ -81,9 +75,6 @@ let origin_referrer_check inner_handler request =
         else begin
           log.warning (fun log -> log ~request
             "Origin-Host mismatch: '%s' vs. '%s'" origin host);
-          (* TODO Simplify. *)
-          let client_stream = Stream.(stream empty no_writer)
-          and server_stream = Stream.(stream no_reader no_writer) in
-          Message.response ~status:`Bad_Request client_stream server_stream
+          Message.response ~status:`Bad_Request Stream.empty Stream.null
           |> Lwt.return
         end
diff --git a/src/server/site_prefix.ml b/src/server/site_prefix.ml
index 210c0993..6a41d2f6 100644
--- a/src/server/site_prefix.ml
+++ b/src/server/site_prefix.ml
@@ -35,10 +35,7 @@ let with_site_prefix prefix =
   fun next_handler request ->
     match match_site_prefix prefix (Router.path request) with
     | None ->
-      (* TODO Streams. *)
-      let client_stream = Stream.(stream empty no_writer)
-      and server_stream = Stream.(stream no_reader no_writer) in
-      Message.response ~status:`Bad_Gateway client_stream server_stream
+      Message.response ~status:`Bad_Gateway Stream.empty Stream.null
       |> Lwt.return
     | Some path ->
       (* TODO This doesn't need to be recomputed on each request - can cache the
diff --git a/src/unix/static.ml b/src/unix/static.ml
index 6353d1ec..c3c0470c 100644
--- a/src/unix/static.ml
+++ b/src/unix/static.ml
@@ -32,16 +32,11 @@ let from_filesystem local_root path _ =
     (fun () ->
       Lwt_io.(with_file ~mode:Input file) (fun channel ->
         let%lwt content = Lwt_io.read channel in
-        (* TODO Can use some pre-allocated streams or helpers here and below. *)
-        let client_stream = Stream.(stream (string content) no_writer)
-        and server_stream = Stream.(stream no_reader no_writer) in
-        Message.response ~headers:(mime_lookup path) client_stream server_stream
+        Message.response
+          ~headers:(mime_lookup path) (Stream.string content) Stream.null
         |> Lwt.return))
     (fun _exn ->
-      (* TODO Improve the two-stream code using some helper. *)
-      let client_stream = Stream.(stream empty no_writer)
-      and server_stream = Stream.(stream no_reader no_writer) in
-      Message.response ~status:`Not_Found client_stream server_stream
+      Message.response ~status:`Not_Found Stream.empty Stream.null
       |> Lwt.return)
 
 (* TODO Add ETag handling. *)
@@ -80,19 +75,13 @@ let validate_path request =
 let static ?(loader = from_filesystem) local_root = fun request ->
 
   if not @@ Method.methods_equal (Message.method_ request) `GET then
-    (* TODO Simplify this code and reduce allocations. *)
-    let client_stream = Stream.(stream empty no_writer)
-    and server_stream = Stream.(stream no_reader no_writer) in
-    Message.response ~status:`Not_Found client_stream server_stream
+    Message.response ~status:`Not_Found Stream.empty Stream.null
     |> Lwt.return
 
   else
     match validate_path request with
     | None ->
-      (* TODO Improve with helpers. *)
-      let client_stream = Stream.(stream empty no_writer)
-      and server_stream = Stream.(stream no_reader no_writer) in
-      Message.response ~status:`Not_Found client_stream server_stream
+      Message.response ~status:`Not_Found Stream.empty Stream.null
       |> Lwt.return
 
     | Some path ->

From fa815c0259101e8201458956e18f872eecfe2dee Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 29 Dec 2021 15:05:38 +0300
Subject: [PATCH 119/312] Add Message.set_target

---
 src/pure/message.ml  | 5 ++++-
 src/pure/message.mli | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/pure/message.ml b/src/pure/message.ml
index 1701d4ef..279c6706 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -21,7 +21,7 @@ module Fields = Hmap.Make (struct type 'a t = 'a field_metadata end)
 
 type client = {
   mutable method_ : Method.method_;
-  target : string;
+  mutable target : string;
   mutable version : int * int;
 }
 (* TODO Get rid of the version field completely? At least don't expose it in
@@ -93,6 +93,9 @@ let version request =
 let set_method_ request method_ =
   request.specific.method_ <- (method_ :> Method.method_)
 
+let set_target request target =
+  request.specific.target <- target
+
 let set_version request version =
   request.specific.version <- version
 
diff --git a/src/pure/message.mli b/src/pure/message.mli
index 9865a988..051be49b 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -34,6 +34,7 @@ val method_ : request -> Method.method_
 val target : request -> string
 val version : request -> int * int
 val set_method_ : request -> [< Method.method_ ] -> unit
+val set_target : request -> string -> unit
 val set_version : request -> int * int -> unit
 
 

From 0664abd9337bfde492b8eca7e872be276372ae0a Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 29 Dec 2021 15:55:57 +0300
Subject: [PATCH 120/312] Body caching for both requests and responses

---
 src/dream.mli        |  4 ++--
 src/pure/message.ml  | 27 +++++++++++++++++----------
 src/pure/message.mli |  2 +-
 3 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 225eade2..8c9f4fd8 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -745,12 +745,12 @@ val all_cookies : request -> (string * string) list
 
 (** {1 Bodies} *)
 
-val body : request -> string promise
+val body : 'a message -> string promise
 (** Retrieves the entire body. See example
     {{:https://github.com/aantron/dream/tree/master/example/6-echo#files}
     [6-echo]}. *)
 
-val set_body : response -> string -> unit
+val set_body : 'a message -> string -> unit
 (** Replaces the body. *)
 
 (**/**)
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 279c6706..24debd91 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -34,7 +34,12 @@ type server = {
   status : Status.status;
 }
 
+type kind =
+  | Request
+  | Response
+
 type 'a message = {
+  kind : kind;
   specific : 'a;
   mutable headers : (string * string) list;
   mutable client_stream : Stream.stream;
@@ -70,6 +75,7 @@ let request
     | Some method_ -> method_
   in
   {
+    kind = Request;
     specific = {
       method_;
       target;
@@ -111,6 +117,7 @@ let response ?status ?code ?(headers = []) client_stream server_stream =
     | None, Some code -> Status.int_to_status code
   in
   {
+    kind = Response;
     specific = {
       status;
     };
@@ -278,21 +285,21 @@ let body_field : string promise field =
     ~name:"dream.body"
     ()
 
-(* TODO NOTE On the client, this will read the client stream until close. *)
 let body message =
   match field message body_field with
   | Some body_promise -> body_promise
   | None ->
-    let body_promise = Stream.read_until_close message.server_stream in
+    let stream =
+      match message.kind with
+      | Request -> message.server_stream
+      | Response -> message.client_stream
+    in
+    let body_promise = Stream.read_until_close stream in
     set_field message body_field body_promise;
     body_promise
 
-(* TODO Should usage of this function affect the body field? *)
-(* TODO NOTE In Dream, this should operate on response server_streams. In Hyper,
-   it should operate on request client_streams, although there is no very good
-   reason why it can't operate on general messages, which might be useful in
-   middlewares that preprocess requests on the server and postprocess responses
-   on the client. Or.... shouldn't this affect the client stream on the server,
-   replacing its read end? *)
 let set_body message body =
-  message.client_stream <- Stream.string body
+  set_field message body_field (Lwt.return body);
+  match message.kind with
+  | Request -> message.server_stream <- Stream.string body
+  | Response -> message.client_stream <- Stream.string body
diff --git a/src/pure/message.mli b/src/pure/message.mli
index 051be49b..330d1270 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -64,7 +64,7 @@ val sort_headers : (string * string) list -> (string * string) list
 
 
 val body : 'a message -> string promise
-val set_body : response -> string -> unit
+val set_body : 'a message -> string -> unit
 val read : 'a message -> string option promise
 val write : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
 val flush : response -> unit promise

From 84128adee6f2a382ff068b31300fe836978161cf Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 29 Dec 2021 20:29:06 +0300
Subject: [PATCH 121/312] Expose dream-pure type equalities

---
 src/dream.mli | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 8c9f4fd8..24ca0863 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -100,7 +100,7 @@ and route
 
 (** {2 Helpers} *)
 
-and 'a message
+and 'a message = 'a Dream_pure.Message.message
 (** ['a message], pronounced “any message,” allows some functions to take either
     {!type-request} or {!type-response} as arguments, because both are defined
     in terms of ['a message]. For example, in {!section-headers}:
@@ -109,14 +109,15 @@ and 'a message
       val Dream.header : string -> 'a message -> string option
     ]} *)
 
-and client
-and server
+and client = Dream_pure.Message.client
+and server = Dream_pure.Message.server
 (** Type parameters for {!message} for {!type-request} and {!type-response},
     respectively. These are “phantom” types. They have no meaning other than
     they are different from each other. Dream only ever creates [client message]
     and [server message]. [client] and [server] are never mentioned again in the
     docs. *)
 (* TODO These docs need to be clarified. *)
+(* TODO Hide all the Dream_pure type equalities. *)
 
 and 'a promise = 'a Lwt.t
 (** Dream uses {{:https://github.com/ocsigen/lwt} Lwt} for promises and

From 024131b0eba09b8f306dbe9e7549427a61bdaea0 Mon Sep 17 00:00:00 2001
From: Glenn Slotte <glenn@slotte.net>
Date: Sat, 1 Jan 2022 03:53:08 +0100
Subject: [PATCH 122/312] bs-platform, bs-webapi -> rescript, rescript-webapi
 (#188)

---
 example/w-fullstack-rescript/bsconfig.json     | 2 +-
 example/w-fullstack-rescript/client/client.res | 6 +++---
 example/w-fullstack-rescript/package.json      | 8 ++++----
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/example/w-fullstack-rescript/bsconfig.json b/example/w-fullstack-rescript/bsconfig.json
index 4fbdcdc7..77f0cb38 100644
--- a/example/w-fullstack-rescript/bsconfig.json
+++ b/example/w-fullstack-rescript/bsconfig.json
@@ -1,7 +1,7 @@
 {
   "name": "fullstack-rescript",
   "bs-dependencies": [
-    "bs-webapi"
+    "rescript-webapi"
   ],
   "sources": [
     "common",
diff --git a/example/w-fullstack-rescript/client/client.res b/example/w-fullstack-rescript/client/client.res
index 3ff56fef..b2270b6f 100644
--- a/example/w-fullstack-rescript/client/client.res
+++ b/example/w-fullstack-rescript/client/client.res
@@ -1,7 +1,7 @@
 open Webapi.Dom
 
 let () = {
-  let body = document |> Document.querySelector("body")
+  let body = document->Document.querySelector("body")
 
   switch (body) {
   | None => ()
@@ -9,8 +9,8 @@ let () = {
 
     let text = Common.greet(#Client)
 
-    let p = document |> Document.createElement("p")
+    let p = document->Document.createElement("p")
     p->Element.setInnerText(text)
-    body |> Element.appendChild(p)
+    body->Element.appendChild(p)
   }
 }
diff --git a/example/w-fullstack-rescript/package.json b/example/w-fullstack-rescript/package.json
index 4443fbcc..f673477f 100644
--- a/example/w-fullstack-rescript/package.json
+++ b/example/w-fullstack-rescript/package.json
@@ -1,13 +1,13 @@
 {
   "name": "fullstack-rescript",
   "dependencies": {
-    "bs-platform": "*",
-    "bs-webapi": "*",
     "esbuild": "*",
-    "esy": "*"
+    "esy": "*",
+    "rescript": "*",
+    "rescript-webapi": "*"
   },
   "scripts": {
-    "build": "bsb -make-world",
+    "build": "rescript",
     "pack": "esbuild lib/js/client/client.js --bundle --outfile=static/client.js",
     "start": "npm run build && npm run pack && npx esy start"
   }

From 03e4d37cb5f5f638707479cd46105e2ee2b1df0e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 1 Jan 2022 05:58:41 +0300
Subject: [PATCH 123/312] ReScript example: needs an esy install

---
 example/w-fullstack-rescript/package.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/example/w-fullstack-rescript/package.json b/example/w-fullstack-rescript/package.json
index f673477f..449f91cc 100644
--- a/example/w-fullstack-rescript/package.json
+++ b/example/w-fullstack-rescript/package.json
@@ -7,6 +7,7 @@
     "rescript-webapi": "*"
   },
   "scripts": {
+    "postinstall": "npx esy install",
     "build": "rescript",
     "pack": "esbuild lib/js/client/client.js --bundle --outfile=static/client.js",
     "start": "npm run build && npm run pack && npx esy start"

From d418a791656be8f78de06748da4b523c511c7b35 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 5 Jan 2022 00:42:06 +0300
Subject: [PATCH 124/312] Update example esy.jsons

---
 example/3-router/esy.json                | 4 +++-
 example/7-template/esy.json              | 4 +++-
 example/8-debug/esy.json                 | 4 +++-
 example/9-error/esy.json                 | 4 +++-
 example/c-cookie/esy.json                | 4 +++-
 example/e-json/esy.json                  | 4 +++-
 example/i-graphql/esy.json               | 4 +++-
 example/j-stream/esy.json                | 4 +++-
 example/k-websocket/esy.json             | 4 +++-
 example/r-advanced-template/esy.json     | 4 +++-
 example/r-graphql/esy.json               | 4 +++-
 example/r-template-files/esy.json        | 4 +++-
 example/r-template-stream/esy.json       | 4 +++-
 example/w-advanced-template/esy.json     | 4 +++-
 example/w-chat/esy.json                  | 4 +++-
 example/w-flash/esy.json                 | 4 +++-
 example/w-graphql-subscription/esy.json  | 4 +++-
 example/w-live-reload/esy.json           | 4 +++-
 example/w-live-reload/live_reload.ml     | 4 ++--
 example/w-stress-response/esy.json       | 4 +++-
 example/w-stress-websocket-send/esy.json | 4 +++-
 example/w-template-files/esy.json        | 4 +++-
 example/w-template-stream/esy.json       | 4 +++-
 23 files changed, 68 insertions(+), 24 deletions(-)

diff --git a/example/3-router/esy.json b/example/3-router/esy.json
index 94efa7b9..64f209e2 100644
--- a/example/3-router/esy.json
+++ b/example/3-router/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/7-template/esy.json b/example/7-template/esy.json
index 7fa24238..79337c98 100644
--- a/example/7-template/esy.json
+++ b/example/7-template/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/8-debug/esy.json b/example/8-debug/esy.json
index c42b6512..b0e30611 100644
--- a/example/8-debug/esy.json
+++ b/example/8-debug/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/9-error/esy.json b/example/9-error/esy.json
index 62f66784..802229ad 100644
--- a/example/9-error/esy.json
+++ b/example/9-error/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/c-cookie/esy.json b/example/c-cookie/esy.json
index c5b5c72a..f10067c5 100644
--- a/example/c-cookie/esy.json
+++ b/example/c-cookie/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/e-json/esy.json b/example/e-json/esy.json
index bb18141f..6b432173 100644
--- a/example/e-json/esy.json
+++ b/example/e-json/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "@opam/ppx_yojson_conv": "*",
     "ocaml": "4.12.x"
@@ -10,6 +10,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/i-graphql/esy.json b/example/i-graphql/esy.json
index da7d0e49..dbef1520 100644
--- a/example/i-graphql/esy.json
+++ b/example/i-graphql/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/j-stream/esy.json b/example/j-stream/esy.json
index b493821a..68662d91 100644
--- a/example/j-stream/esy.json
+++ b/example/j-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/k-websocket/esy.json b/example/k-websocket/esy.json
index e327d40e..cfb3b451 100644
--- a/example/k-websocket/esy.json
+++ b/example/k-websocket/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/r-advanced-template/esy.json b/example/r-advanced-template/esy.json
index 7d418fb4..2223089e 100644
--- a/example/r-advanced-template/esy.json
+++ b/example/r-advanced-template/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
@@ -10,6 +10,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/r-graphql/esy.json b/example/r-graphql/esy.json
index d5b1351d..766b219b 100644
--- a/example/r-graphql/esy.json
+++ b/example/r-graphql/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
@@ -10,6 +10,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/r-template-files/esy.json b/example/r-template-files/esy.json
index d78cda78..112f0596 100644
--- a/example/r-template-files/esy.json
+++ b/example/r-template-files/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/r-template-stream/esy.json b/example/r-template-stream/esy.json
index 8c080144..33fef61f 100644
--- a/example/r-template-stream/esy.json
+++ b/example/r-template-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
@@ -10,6 +10,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-advanced-template/esy.json b/example/w-advanced-template/esy.json
index 7fa24238..79337c98 100644
--- a/example/w-advanced-template/esy.json
+++ b/example/w-advanced-template/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-chat/esy.json b/example/w-chat/esy.json
index 03c0de5e..cb117b9c 100644
--- a/example/w-chat/esy.json
+++ b/example/w-chat/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-flash/esy.json b/example/w-flash/esy.json
index 1981835d..c58a68d3 100644
--- a/example/w-flash/esy.json
+++ b/example/w-flash/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-graphql-subscription/esy.json b/example/w-graphql-subscription/esy.json
index 640af0e9..9330db58 100644
--- a/example/w-graphql-subscription/esy.json
+++ b/example/w-graphql-subscription/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-live-reload/esy.json b/example/w-live-reload/esy.json
index d9b6cdfb..498544e0 100644
--- a/example/w-live-reload/esy.json
+++ b/example/w-live-reload/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "@opam/lambdasoup": "*",
     "ocaml": "4.12.x"
@@ -10,6 +10,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-live-reload/live_reload.ml b/example/w-live-reload/live_reload.ml
index b5df2343..9750d90f 100644
--- a/example/w-live-reload/live_reload.ml
+++ b/example/w-live-reload/live_reload.ml
@@ -72,8 +72,8 @@ let () =
 
     Dream.get "/_live-reload" (fun _ ->
       Dream.websocket (fun socket ->
-        let%lwt _ = Dream.receive socket in
-        Dream.close_websocket socket));
+        let%lwt _ = Dream.read socket in
+        Dream.close socket));
 
   ]
   @@ Dream.not_found
diff --git a/example/w-stress-response/esy.json b/example/w-stress-response/esy.json
index a66e71da..38883279 100644
--- a/example/w-stress-response/esy.json
+++ b/example/w-stress-response/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-stress-websocket-send/esy.json b/example/w-stress-websocket-send/esy.json
index 2915cbe8..869673bc 100644
--- a/example/w-stress-websocket-send/esy.json
+++ b/example/w-stress-websocket-send/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-template-files/esy.json b/example/w-template-files/esy.json
index d78cda78..112f0596 100644
--- a/example/w-template-files/esy.json
+++ b/example/w-template-files/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-template-stream/esy.json b/example/w-template-stream/esy.json
index d463fd73..c1ecc1a5 100644
--- a/example/w-template-stream/esy.json
+++ b/example/w-template-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "aantron/dream:dream.opam",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,6 +9,8 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
+    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
+    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {

From 4dce6a7a4d89de3c60e5656c8cbcca6a0fbd2708 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 11 Jan 2022 19:54:52 +0300
Subject: [PATCH 125/312] Tweak indentation

---
 src/pure/stream.ml | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index f9443322..a5269351 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -94,27 +94,27 @@ let empty = {
 
 (* TODO This shows the awkwardness in string-to-string body reading. *)
 let string_reader the_string =
-    (* Storing the string in a ref here so that we can "lose" it eagerly once
-       the stream is closed, making the memory available to the GC. *)
-    let string_ref = ref (Some the_string) in
-
-    let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
-      match !string_ref with
-      | Some stored_string ->
-        string_ref := None;
-        let length = String.length stored_string in
-        data
-          (Bigstringaf.of_string ~off:0 ~len:length stored_string)
-          0 length true true
-      | None ->
-        close 1000
-    in
-
-    let close _code =
+  (* Storing the string in a ref here so that we can "lose" it eagerly once
+     the stream is closed, making the memory available to the GC. *)
+  let string_ref = ref (Some the_string) in
+
+  let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
+    match !string_ref with
+    | Some stored_string ->
       string_ref := None;
-    in
+      let length = String.length stored_string in
+      data
+        (Bigstringaf.of_string ~off:0 ~len:length stored_string)
+        0 length true true
+    | None ->
+      close 1000
+  in
+
+  let close _code =
+    string_ref := None;
+  in
 
-    reader ~read ~close
+  reader ~read ~close
 
 let string the_string =
   if String.length the_string = 0 then

From 5cd57e1ea1c18becfb2609db320046b70f274503 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 15 Jan 2022 19:45:34 +0300
Subject: [PATCH 126/312] Forward exceptions across streams

---
 src/dream.ml                      |   1 +
 src/dream.mli                     |  17 ++-
 src/http/adapt.ml                 |   5 +-
 src/http/http.ml                  |  25 ++--
 src/pure/message.ml               |   2 +
 src/pure/stream.ml                | 212 ++++++++++++++++++++----------
 src/pure/stream.mli               |   8 +-
 src/server/helpers.ml             |   8 +-
 test/expect/pure/stream/stream.ml |  26 ++--
 9 files changed, 206 insertions(+), 98 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index 72d291cb..d2455e86 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -166,6 +166,7 @@ let flush_stream = Stream.flush
 let ping_stream = Stream.ping
 let pong_stream = Stream.pong
 let close_stream = Stream.close
+let abort_stream = Stream.abort
 
 
 
diff --git a/src/dream.mli b/src/dream.mli
index 24ca0863..46f59c45 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -826,10 +826,11 @@ val set_server_stream : 'a message -> stream -> unit
 val read_stream :
   stream ->
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(int -> unit) ->
   flush:(unit -> unit) ->
   ping:(buffer -> int -> int -> unit) ->
   pong:(buffer -> int -> int -> unit) ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
     unit
 (** Waits for the next stream event, and calls:
 
@@ -838,23 +839,27 @@ val read_stream :
     - [~exn] to report an exception. *)
 
 val ready_stream :
-  stream -> close:(int -> unit) -> (unit -> unit) -> unit
+  stream -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
 
 val write_stream :
-  stream -> buffer -> int -> int -> bool -> bool -> close:(int -> unit) -> (unit -> unit) -> unit
+  stream -> buffer -> int -> int -> bool -> bool -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
 
 val flush_stream :
-  stream -> close:(int -> unit) -> (unit -> unit) -> unit
+  stream -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
 
 val ping_stream :
-  stream -> buffer -> int -> int -> close:(int -> unit) -> (unit -> unit) -> unit
+  stream -> buffer -> int -> int -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
 
 val pong_stream :
-  stream -> buffer -> int -> int -> close:(int -> unit) -> (unit -> unit) -> unit
+  stream -> buffer -> int -> int -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
 
 val close_stream :
   stream -> int -> unit
 
+val abort_stream :
+  stream -> exn -> unit
+(* TODO Line widths above. *)
+
 (**/**)
 val write_buffer :
   ?offset:int -> ?length:int -> response -> buffer -> unit promise
diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index 8d23af2a..fd5f737f 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -26,6 +26,8 @@ let forward_body_general
     http_flush
     close =
 
+  let abort _exn = close 1000 in
+
   let bytes_since_flush = ref 0 in
 
   let rec send () =
@@ -34,10 +36,11 @@ let forward_body_general
       Stream.read
         stream
         ~data
-        ~close
         ~flush
         ~ping
         ~pong
+        ~close
+        ~exn:abort
 
   and data chunk off len _binary _fin =
     write_buffer ~off ~len chunk;
diff --git a/src/http/http.ml b/src/http/http.ml
index df0e9660..d370ad5d 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -120,7 +120,7 @@ let websocket_handler response socket =
 
   (* TODO Can this be canceled by a user's close? i.e. will that eventually
      cause a call to eof above? *)
-  let rec read ~data ~close ~flush ~ping ~pong =
+  let rec read ~data ~flush ~ping ~pong ~close ~exn =
     if !closed then
       close !close_code
     else
@@ -157,10 +157,10 @@ let websocket_handler response socket =
           drain_payload payload @@ fun _buffer _offset length ->
           websocket_log.warning (fun log ->
             log "Unknown frame type with length %i" length);
-          read ~data ~close ~flush ~ping ~pong
+          read ~data ~flush ~ping ~pong ~close ~exn
         | Some (`Data properties, payload) ->
           current_payload := Some (properties, payload);
-          read ~data ~close ~flush ~ping ~pong
+          read ~data ~flush ~ping ~pong ~close ~exn
         end
       | Some ((binary, fin), payload) ->
         Websocketaf.Payload.schedule_read
@@ -169,7 +169,7 @@ let websocket_handler response socket =
             match !last_chunk with
             | None ->
               last_chunk := Some (buffer, off, len);
-              read ~data ~close ~flush ~ping ~pong
+              read ~data ~flush ~ping ~pong ~close ~exn
             | Some (last_buffer, last_offset, last_length) ->
               last_chunk := Some (buffer, off, len);
               let binary = binary = `Binary in
@@ -178,7 +178,7 @@ let websocket_handler response socket =
             current_payload := None;
             match !last_chunk with
             | None ->
-              read ~data ~close ~flush ~ping ~pong
+              read ~data ~flush ~ping ~pong ~close ~exn
             | Some (last_buffer, last_offset, last_length) ->
               last_chunk := None;
               let binary = binary = `Binary in
@@ -204,7 +204,9 @@ let websocket_handler response socket =
     end
   in
 
-  let reader = Stream.reader ~read ~close in
+  let abort _exn = close 1005 in
+
+  let reader = Stream.reader ~read ~close ~abort in
   Stream.forward reader (Message.client_stream response);
 
   let rec outgoing_loop () =
@@ -226,7 +228,6 @@ let websocket_handler response socket =
           else
             outgoing_loop ()
         end)
-      ~close
       ~flush:(fun () -> flush ~close outgoing_loop)
       ~ping:(fun _buffer _offset length ->
         if length > 125 then
@@ -256,6 +257,8 @@ let websocket_handler response socket =
           Websocketaf.Wsd.send_pong socket;
           outgoing_loop ()
         end)
+      ~close
+      ~exn:abort
   in
   outgoing_loop ();
 
@@ -305,7 +308,7 @@ let wrap_handler
     (* TODO Should the stream be auto-closed? It doesn't even have a closed
        state. The whole thing is just a wrapper for whatever the http/af
        behavior is. *)
-    let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
+    let read ~data ~flush:_ ~ping:_ ~pong:_ ~close ~exn:_ =
       Httpaf.Body.Reader.schedule_read
         body
         ~on_eof:(fun () -> close 1000)
@@ -314,7 +317,7 @@ let wrap_handler
     let close _code =
       Httpaf.Body.Reader.close body in
     let body =
-      Stream.reader ~read ~close in
+      Stream.reader ~read ~close ~abort:close in
     let body =
       Stream.stream body Stream.no_writer in
 
@@ -435,7 +438,7 @@ let wrap_handler_h2
 
     let body =
       H2.Reqd.request_body conn in
-    let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
+    let read ~data ~flush:_ ~ping:_ ~pong:_ ~close ~exn:_ =
       H2.Body.schedule_read
         body
         ~on_eof:(fun () -> close 1000)
@@ -444,7 +447,7 @@ let wrap_handler_h2
     let close _code =
       H2.Body.close_reader body in
     let body =
-      Stream.reader ~read ~close in
+      Stream.reader ~read ~close ~abort:close in
     let body =
       Stream.stream body Stream.no_writer in
 
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 24debd91..19b02a50 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -208,6 +208,7 @@ let write ?kind message chunk =
     message.server_stream
     buffer 0 length binary true
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
+    ~exn:(fun exn -> Lwt.wakeup_later_exn resolver exn)
     (fun () -> Lwt.wakeup_later resolver ());
   promise
 
@@ -218,6 +219,7 @@ let flush message =
   Stream.flush
     message.server_stream
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
+    ~exn:(fun exn -> Lwt.wakeup_later_exn resolver exn)
     (Lwt.wakeup_later resolver);
   promise
 
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index a5269351..5c454858 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -13,29 +13,33 @@ type 'a promise =
 
 type read =
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(int -> unit) ->
   flush:(unit -> unit) ->
   ping:(buffer -> int -> int -> unit) ->
   pong:(buffer -> int -> int -> unit) ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
     unit
 
 type write =
   close:(int -> unit) ->
+  exn:(exn -> unit) ->
   (unit -> unit) ->
     unit
 
 type reader = {
   read : read;
   close : int -> unit;
+  abort : exn -> unit;
 }
 
 type writer = {
   ready : write;
-  write : buffer -> int -> int -> bool -> bool -> write;
+  data : buffer -> int -> int -> bool -> bool -> write;
   flush : write;
   ping : buffer -> int -> int -> write;
   pong : buffer -> int -> int -> write;
   close : int -> unit;
+  abort : exn -> unit;
 }
 
 type stream = {
@@ -48,34 +52,41 @@ let stream reader writer =
 
 let no_reader = {
   read =
-    (fun ~data:_ ~close:_ ~flush:_ ~ping:_ ~pong:_ ->
+    (fun ~data:_ ~flush:_ ~ping:_ ~pong:_ ~close:_ ~exn:_ ->
       raise (Failure "read from a non-readable stream"));
   close =
     ignore;
+  abort =
+    ignore;
 }
 
 let no_writer = {
   ready =
-    (fun ~close:_ _ok ->
+    (fun ~close:_ ~exn:_ _ok ->
       raise (Failure "ready called on a read-only stream"));
-  write =
-    (fun _buffer _offset _length _binary _fin ~close:_ _ok ->
+  data =
+    (fun _buffer _offset _length _binary _fin ~close:_ ~exn:_ _ok ->
       raise (Failure "write to a read-only stream"));
   flush =
-    (fun ~close:_ _ok ->
+    (fun ~close:_ ~exn:_ _ok ->
       raise (Failure "flush of a read-only stream"));
   ping =
-    (fun _buffer _offset _length ~close:_ _ok ->
+    (fun _buffer _offset _length ~close:_ ~exn:_ _ok ->
       raise (Failure "ping on a read-only stream"));
   pong =
-    (fun _buffer _offset _length ~close:_ _ok ->
+    (fun _buffer _offset _length ~close:_ ~exn:_ _ok ->
       raise (Failure "pong on a read-only stream"));
   close =
     ignore;
+  abort =
+    ignore;
 }
 
-let reader ~read ~close =
-  {read; close}
+let reader ~read ~close ~abort = {
+  read;
+  close;
+  abort;
+}
 
 let null = {
   reader = no_reader;
@@ -84,8 +95,9 @@ let null = {
 
 let empty_reader =
   reader
-    ~read:(fun ~data:_ ~close ~flush:_ ~ping:_ ~pong:_ -> close 1000)
+    ~read:(fun ~data:_ ~flush:_ ~ping:_ ~pong:_ ~close ~exn:_ -> close 1000)
     ~close:ignore
+    ~abort:ignore
 
 let empty = {
   reader = empty_reader;
@@ -98,7 +110,7 @@ let string_reader the_string =
      the stream is closed, making the memory available to the GC. *)
   let string_ref = ref (Some the_string) in
 
-  let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
+  let read ~data ~flush:_ ~ping:_ ~pong:_ ~close ~exn:_ =
     match !string_ref with
     | Some stored_string ->
       string_ref := None;
@@ -114,7 +126,7 @@ let string_reader the_string =
     string_ref := None;
   in
 
-  reader ~read ~close
+  reader ~read ~close ~abort:close
 
 let string the_string =
   if String.length the_string = 0 then
@@ -125,44 +137,51 @@ let string the_string =
       writer = no_writer;
     }
 
-let read stream ~data ~close ~flush =
-  stream.reader.read ~data ~close ~flush
+let read stream ~data ~flush ~ping ~pong ~close ~exn =
+  stream.reader.read ~data ~flush ~ping ~pong ~close ~exn
 
 let close stream code =
   stream.reader.close code;
   stream.writer.close code
 
+let abort stream exn =
+  stream.reader.abort exn;
+  stream.writer.abort exn
+
 (* TODO Test this somehow with guards for early writing on a pipe. *)
-let ready stream ~close ok =
-  stream.writer.ready ~close ok
+let ready stream ~close ~exn ok =
+  stream.writer.ready ~close ~exn ok
 
-let write stream buffer offset length binary fin ~close ok =
-  stream.writer.write buffer offset length binary fin ~close ok
+let write stream buffer offset length binary fin ~close ~exn ok =
+  stream.writer.data buffer offset length binary fin ~close ~exn ok
 
-let flush stream ~close ok =
-  stream.writer.flush ~close ok
+let flush stream ~close ~exn ok =
+  stream.writer.flush ~close ~exn ok
 
-let ping stream buffer offset length ~close ok =
-  stream.writer.ping buffer offset length ~close ok
+let ping stream buffer offset length ~close ~exn ok =
+  stream.writer.ping buffer offset length ~close ~exn ok
 
-let pong stream buffer offset length ~close ok =
-  stream.writer.pong buffer offset length ~close ok
+let pong stream buffer offset length ~close ~exn ok =
+  stream.writer.pong buffer offset length ~close ~exn ok
 
 type pipe = {
   mutable state : [
     | `Idle
     | `Reader_waiting
     | `Closed of int
+    | `Aborted of exn
   ];
 
   mutable read_data_callback : buffer -> int -> int -> bool -> bool -> unit;
-  mutable read_close_callback : int -> unit;
   mutable read_flush_callback : unit -> unit;
   mutable read_ping_callback : buffer -> int -> int -> unit;
   mutable read_pong_callback : buffer -> int -> int -> unit;
+  mutable read_close_callback : int -> unit;
+  mutable read_abort_callback : exn -> unit;
 
   mutable write_ok_callback : unit -> unit;
   mutable write_close_callback : int -> unit;
+  mutable write_abort_callback : exn -> unit;
 }
 
 let dummy_read_data_callback _buffer _offset _length _binary _fin =
@@ -173,38 +192,43 @@ let dummy_ping_pong_callback _buffer _offset _length =
 
 let clean_up_reader_fields pipe =
   pipe.read_data_callback <- dummy_read_data_callback;
-  pipe.read_close_callback <- ignore;
   pipe.read_flush_callback <- ignore;
   pipe.read_ping_callback <- dummy_ping_pong_callback;
-  pipe.read_pong_callback <- dummy_ping_pong_callback
+  pipe.read_pong_callback <- dummy_ping_pong_callback;
+  pipe.read_close_callback <- ignore;
+  pipe.read_abort_callback <- ignore
 
 let clean_up_writer_fields pipe =
   pipe.write_ok_callback <- ignore;
-  pipe.write_close_callback <- ignore
+  pipe.write_close_callback <- ignore;
+  pipe.write_abort_callback <- ignore
 
 let pipe () =
   let internal = {
     state = `Idle;
 
     read_data_callback = dummy_read_data_callback;
-    read_close_callback = ignore;
     read_flush_callback = ignore;
     read_ping_callback = dummy_ping_pong_callback;
     read_pong_callback = dummy_ping_pong_callback;
+    read_close_callback = ignore;
+    read_abort_callback = ignore;
 
     write_ok_callback = ignore;
     write_close_callback = ignore;
+    write_abort_callback = ignore;
   } in
 
-  let read ~data ~close ~flush ~ping ~pong =
+  let read ~data ~flush ~ping ~pong ~close ~exn =
     match internal.state with
     | `Idle ->
       internal.state <- `Reader_waiting;
       internal.read_data_callback <- data;
-      internal.read_close_callback <- close;
       internal.read_flush_callback <- flush;
       internal.read_ping_callback <- ping;
       internal.read_pong_callback <- pong;
+      internal.read_close_callback <- close;
+      internal.read_abort_callback <- exn;
       let write_ok_callback = internal.write_ok_callback in
       clean_up_writer_fields internal;
       write_ok_callback ()
@@ -212,20 +236,25 @@ let pipe () =
       raise (Failure "stream read: the previous read has not completed")
     | `Closed code ->
       close code
+    | `Aborted the_exn ->
+      exn the_exn
   in
 
-  let ready ~close ok =
+  let ready ~close ~exn ok =
     match internal.state with
     | `Idle ->
       internal.write_ok_callback <- ok;
-      internal.write_close_callback <- close
+      internal.write_close_callback <- close;
+      internal.write_abort_callback <- exn;
     | `Reader_waiting ->
       ok ()
     | `Closed code ->
       close code
+    | `Aborted the_exn ->
+      exn the_exn
   in
 
-  let write buffer offset length binary fin ~close ok =
+  let data buffer offset length binary fin ~close ~exn ok =
     match internal.state with
     | `Idle ->
       raise (Failure "stream write: the stream is not ready")
@@ -235,28 +264,15 @@ let pipe () =
       clean_up_reader_fields internal;
       internal.write_ok_callback <- ok;
       internal.write_close_callback <- close;
+      internal.write_abort_callback <- exn;
       read_data_callback buffer offset length binary fin;
     | `Closed code ->
       close code
+    | `Aborted the_exn ->
+      exn the_exn
   in
 
-  let close code =
-    match internal.state with
-    | `Idle ->
-      internal.state <- `Closed code;
-      let write_close_callback = internal.write_close_callback in
-      clean_up_writer_fields internal;
-      write_close_callback code
-    | `Reader_waiting ->
-      internal.state <- `Closed code;
-      let read_close_callback = internal.read_close_callback in
-      clean_up_reader_fields internal;
-      read_close_callback code
-    | `Closed _code ->
-      ()
-  in
-
-  let flush ~close ok =
+  let flush ~close ~exn ok =
     match internal.state with
     | `Idle ->
       raise (Failure "stream flush: the previous write has not completed")
@@ -266,12 +282,15 @@ let pipe () =
       clean_up_reader_fields internal;
       internal.write_ok_callback <- ok;
       internal.write_close_callback <- close;
+      internal.write_abort_callback <- exn;
       read_flush_callback ()
     | `Closed code ->
       close code
+    | `Aborted the_exn ->
+      exn the_exn
   in
 
-  let ping buffer offset length ~close ok =
+  let ping buffer offset length ~close ~exn ok =
     match internal.state with
     | `Idle ->
       raise (Failure "stream ping: the previous write has not completed")
@@ -281,12 +300,15 @@ let pipe () =
       clean_up_reader_fields internal;
       internal.write_ok_callback <- ok;
       internal.write_close_callback <- close;
+      internal.write_abort_callback <- exn;
       read_ping_callback buffer offset length
     | `Closed code ->
       close code
+    | `Aborted the_exn ->
+      exn the_exn
   in
 
-  let pong buffer offset length ~close ok =
+  let pong buffer offset length ~close ~exn ok =
     match internal.state with
     | `Idle ->
       raise (Failure "stream pong: the previous write has not completed")
@@ -296,22 +318,63 @@ let pipe () =
       clean_up_reader_fields internal;
       internal.write_ok_callback <- ok;
       internal.write_close_callback <- close;
+      internal.write_abort_callback <- exn;
       read_pong_callback buffer offset length
     | `Closed code ->
       close code
+    | `Aborted the_exn ->
+      exn the_exn
+  in
+
+  let close code =
+    match internal.state with
+    | `Idle ->
+      internal.state <- `Closed code;
+      let write_close_callback = internal.write_close_callback in
+      clean_up_writer_fields internal;
+      write_close_callback code
+    | `Reader_waiting ->
+      internal.state <- `Closed code;
+      let read_close_callback = internal.read_close_callback in
+      clean_up_reader_fields internal;
+      read_close_callback code
+    | `Closed _code ->
+      ()
+    | `Aborted _the_exn ->
+      ()
+  in
+
+  let abort exn =
+    match internal.state with
+    | `Idle ->
+      internal.state <- `Aborted exn;
+      let write_abort_callback = internal.write_abort_callback in
+      clean_up_writer_fields internal;
+      write_abort_callback exn
+    | `Reader_waiting ->
+      internal.state <- `Aborted exn;
+      let read_abort_callback = internal.read_abort_callback in
+      clean_up_reader_fields internal;
+      read_abort_callback exn
+    | `Closed _code ->
+      ()
+    | `Aborted _the_exn ->
+      ()
   in
 
   let reader = {
     read;
     close;
+    abort;
   }
   and writer = {
     ready;
-    write;
+    data;
     flush;
     ping;
     pong;
     close;
+    abort;
   } in
 
   (reader, writer)
@@ -320,24 +383,32 @@ let forward (reader : reader) stream =
   let rec loop () =
     stream.writer.ready
       ~close:reader.close
+      ~exn:reader.abort
       (fun () ->
         reader.read
           ~data:(fun buffer offset length binary fin ->
-            stream.writer.write
-              buffer offset length binary fin ~close:reader.close loop)
-          ~close:stream.writer.close
+            stream.writer.data
+              buffer offset length
+              binary fin
+              ~close:reader.close ~exn:reader.abort
+              loop)
           ~flush:(fun () ->
-            stream.writer.flush ~close:reader.close loop)
+            stream.writer.flush ~close:reader.close ~exn:reader.abort loop)
           ~ping:(fun buffer offset length ->
-            stream.writer.ping buffer offset length ~close:reader.close loop)
+            stream.writer.ping
+              buffer offset length ~close:reader.close ~exn:reader.abort loop)
           ~pong:(fun buffer offset length ->
-            stream.writer.pong buffer offset length ~close:reader.close loop))
+            stream.writer.pong
+              buffer offset length ~close:reader.close ~exn:reader.abort loop)
+          ~close:stream.writer.close
+          ~exn:stream.writer.abort)
   in
   loop ()
 
 let read_convenience stream =
   let promise, resolver = Lwt.wait () in
   let close _code = Lwt.wakeup_later resolver None in
+  let abort exn = Lwt.wakeup_later_exn resolver exn in
 
   let rec loop () =
     stream.reader.read
@@ -347,15 +418,17 @@ let read_convenience stream =
         |> Option.some
         |> Lwt.wakeup_later resolver)
 
-      ~close
-
       ~flush:loop
 
       ~ping:(fun buffer offset length ->
-        stream.writer.pong buffer offset length ~close loop)
+        stream.writer.pong buffer offset length ~close ~exn:abort loop)
 
       ~pong:(fun _buffer _offset _length ->
         ())
+
+      ~close
+
+      ~exn:abort
   in
   loop ();
 
@@ -370,6 +443,7 @@ let read_until_close stream =
     |> Bigstringaf.to_string
     |> Lwt.wakeup_later resolver
   in
+  let abort exn = Lwt.wakeup_later_exn resolver exn in
 
   let rec loop () =
     stream.reader.read
@@ -389,15 +463,17 @@ let read_until_close stream =
 
         loop ())
 
-      ~close
-
       ~flush:loop
 
       ~ping:(fun buffer offset length ->
-        stream.writer.pong buffer offset length ~close loop)
+        stream.writer.pong buffer offset length ~close ~exn:abort loop)
 
       ~pong:(fun _buffer _offset _length ->
         ())
+
+      ~close
+
+      ~exn:abort
   in
   loop ();
 
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index be9f534f..ccdb16b8 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -20,10 +20,11 @@ type 'a promise =
 
 type read =
   data:(buffer -> int -> int -> bool -> bool -> unit) ->
-  close:(int -> unit) ->
   flush:(unit -> unit) ->
   ping:(buffer -> int -> int -> unit) ->
   pong:(buffer -> int -> int -> unit) ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
     unit
 (** A reading function. Awaits the next event on the stream. For each call of a
     reading function, one of the callbacks will eventually be called, according
@@ -31,12 +32,13 @@ type read =
 
 type write =
   close:(int -> unit) ->
+  exn:(exn -> unit) ->
   (unit -> unit) ->
     unit
 (** A writing function. Pushes an event into a stream. May take additional
     arguments before [~ok]. *)
 
-val reader : read:read -> close:(int -> unit) -> reader
+val reader : read:read -> close:(int -> unit) -> abort:(exn -> unit) -> reader
 (** Creates a read-only stream from the given reader. [~close] is called in
     response to {!Stream.close}. It doesn't need to call {!Stream.close} again
     on the stream. It should be used to free any underlying resources. *)
@@ -71,6 +73,8 @@ val close : stream -> int -> unit
 (** Closes the given stream. Causes a pending reader or writer to call its
     [~close] callback. *)
 
+val abort : stream -> exn -> unit
+
 val read : stream -> read
 (** Awaits the next stream event. See {!Stream.type-read}. *)
 
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index dae6cfdd..f4fa16f1 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -101,7 +101,9 @@ let stream ?status ?code ?headers callback =
   (* TODO Should set up an error handler for this. YES. *)
   (* TODO Make sure the request id is propagated to the callback. *)
   let wrapped_callback _ = Lwt.async (fun () -> callback response) in
-  Stream.ready server_stream ~close:wrapped_callback wrapped_callback;
+  Stream.ready
+    server_stream
+    ~close:wrapped_callback ~exn:wrapped_callback wrapped_callback;
   Lwt.return response
 
 let websocket_field =
@@ -127,7 +129,9 @@ let websocket ?headers callback =
   Message.set_field response websocket_field true;
   (* TODO Make sure the request id is propagated to the callback. *)
   let wrapped_callback _ = Lwt.async (fun () -> callback response) in
-  Stream.ready server_stream ~close:wrapped_callback wrapped_callback;
+  Stream.ready
+    server_stream
+    ~close:wrapped_callback ~exn:wrapped_callback wrapped_callback;
   Lwt.return response
 
 let empty ?headers status =
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 90a89410..bd4a2df0 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -14,8 +14,6 @@ let read_and_dump stream =
     ~data:(fun buffer offset length binary fin ->
       Printf.printf "read: data: BINARY=%b FIN=%b %s\n"
         binary fin (Bigstringaf.substring buffer ~off:offset ~len:length))
-    ~close:(fun code ->
-      Printf.printf "read: close: CODE=%i\n" code)
     ~flush:(fun () ->
       print_endline "read: flush")
     ~ping:(fun buffer offset length ->
@@ -24,11 +22,17 @@ let read_and_dump stream =
     ~pong:(fun buffer offset length ->
       Printf.printf "read: pong: %s\n"
         (Bigstringaf.substring buffer ~off:offset ~len:length))
+    ~close:(fun code ->
+      Printf.printf "read: close: CODE=%i\n" code)
+    ~exn:(fun exn ->
+      Printf.printf "read: exn: %s\n" (Printexc.to_string exn))
 
 let flush_and_dump stream =
   Stream.flush stream
     ~close:(fun code ->
       Printf.printf "flush: close: CODE=%i\n" code)
+    ~exn:(fun exn ->
+      Printf.printf "flush: exn: %s\n" (Printexc.to_string exn))
     (fun () ->
       print_endline "flush: ok")
 
@@ -36,6 +40,8 @@ let write_and_dump stream buffer offset length binary fin =
   Stream.write stream buffer offset length binary fin
     ~close:(fun code ->
       Printf.printf "write: close: CODE=%i\n" code)
+    ~exn:(fun exn ->
+      Printf.printf "write: exn: %s\n" (Printexc.to_string exn))
     (fun () ->
       print_endline "write: ok")
 
@@ -44,6 +50,8 @@ let ping_and_dump payload stream =
   Stream.ping stream (Bigstringaf.of_string ~off:0 ~len:length payload) 0 length
     ~close:(fun code ->
       Printf.printf "ping: close: CODE=%i\n" code)
+    ~exn:(fun exn ->
+      Printf.printf "ping: exn: %s\n" (Printexc.to_string exn))
     (fun () ->
       print_endline "ping: ok")
 
@@ -52,6 +60,8 @@ let pong_and_dump payload stream =
   Stream.pong stream (Bigstringaf.of_string ~off:0 ~len:length payload) 0 length
     ~close:(fun code ->
       Printf.printf "pong: close: CODE=%i\n" code)
+    ~exn:(fun exn ->
+      Printf.printf "pong: exn: %s\n" (Printexc.to_string exn))
     (fun () ->
       print_endline "pong: ok")
 
@@ -60,7 +70,7 @@ let pong_and_dump payload stream =
 (* Read-only streams. *)
 
 let%expect_test _ =
-  let stream = Stream.(stream empty no_writer) in
+  let stream = Stream.empty in
   read_and_dump stream;
   read_and_dump stream;
   Stream.close stream 1005;
@@ -71,13 +81,13 @@ let%expect_test _ =
     read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.(stream empty no_writer) in
+  let stream = Stream.empty in
   Stream.close stream 1005;
   read_and_dump stream;
   [%expect {| read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.(stream (string "foo") no_writer) in
+  let stream = Stream.string "foo" in
   read_and_dump stream;
   read_and_dump stream;
   read_and_dump stream;
@@ -90,7 +100,7 @@ let%expect_test _ =
     read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.(stream (string "") no_writer) in
+  let stream = Stream.string "" in
   read_and_dump stream;
   read_and_dump stream;
   [%expect {|
@@ -98,13 +108,13 @@ let%expect_test _ =
     read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.(stream (string "foo") no_writer) in
+  let stream = Stream.string "foo" in
   Stream.close stream 1005;
   read_and_dump stream;
   [%expect {| read: close: CODE=1000 |}]
 
 let%expect_test _ =
-  let stream = Stream.(stream empty no_writer) in
+  let stream = Stream.empty in
   (try write_and_dump stream Bigstringaf.empty 0 0 false false
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
   (try flush_and_dump stream

From a8d6e5c06de48fcd55c72dfc49f026a35f25c875 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 19 Jan 2022 15:42:44 +0300
Subject: [PATCH 127/312] WebSocket adapter should use bare stream

...so that it can be used on both the client and the server.
---
 src/http/http.ml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index d370ad5d..fd51f19e 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -38,8 +38,7 @@ let sha1 s =
 let websocket_log =
   Log.sub_log "dream.websocket"
 
-let websocket_handler response socket =
-
+let websocket_handler stream socket =
   (* Queue of received frames. There doesn't appear to be a nice way to achieve
      backpressure with the current API of websocket/af, so that will have to be
      added later. The user-facing API of Dream does support backpressure. *)
@@ -207,11 +206,11 @@ let websocket_handler response socket =
   let abort _exn = close 1005 in
 
   let reader = Stream.reader ~read ~close ~abort in
-  Stream.forward reader (Message.client_stream response);
+  Stream.forward reader stream;
 
   let rec outgoing_loop () =
     Stream.read
-      (Message.client_stream response)
+      stream
       ~data:(fun buffer offset length binary fin ->
         (* Until https://github.com/anmonteiro/websocketaf/issues/33. *)
         if not fin then
@@ -380,7 +379,8 @@ let wrap_handler
 
           let proceed () =
             Websocketaf.Server_connection.create_websocket
-              ~error_handler (websocket_handler response)
+              ~error_handler
+              (websocket_handler (Message.client_stream response))
             |> Gluten.make (module Websocketaf.Server_connection)
             |> upgrade
           in

From acc2efc8fef921f653b0ab6c44e1c527ba5fe79f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 19 Jan 2022 16:21:05 +0300
Subject: [PATCH 128/312] Move WebSocket adapter to package dream-httpaf

It is needed by both the client and the server.
---
 src/http/dune                |   3 +-
 src/http/http.ml             | 228 +--------------------------------
 src/http/shared/dune         |  10 ++
 src/http/shared/websocket.ml | 238 +++++++++++++++++++++++++++++++++++
 4 files changed, 251 insertions(+), 228 deletions(-)
 create mode 100644 src/http/shared/dune
 create mode 100644 src/http/shared/websocket.ml

diff --git a/src/http/dune b/src/http/dune
index 386935c7..cac581f3 100644
--- a/src/http/dune
+++ b/src/http/dune
@@ -2,13 +2,12 @@
  (public_name dream.http)
  (name dream__http)
  (libraries
-  bigarray-compat
-  bigstringaf
   digestif
   dream.certificate
   dream.cipher
   dream-pure
   dream.server
+  dream-httpaf
   dream-httpaf.gluten
   dream-httpaf.gluten-lwt-unix
   dream-httpaf.h2
diff --git a/src/http/http.ml b/src/http/http.ml
index fd51f19e..2836da65 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -38,231 +38,6 @@ let sha1 s =
 let websocket_log =
   Log.sub_log "dream.websocket"
 
-let websocket_handler stream socket =
-  (* Queue of received frames. There doesn't appear to be a nice way to achieve
-     backpressure with the current API of websocket/af, so that will have to be
-     added later. The user-facing API of Dream does support backpressure. *)
-  let frames, push_frame = Lwt_stream.create () in
-  let message_is_binary = ref `Binary in
-
-  (* Frame reader called by websocket/af on each frame received. There is no
-     good way to truly throttle this, hence this frame reader pushes frame
-     objects into the above frame queue for the reader to take from later. See
-     https://github.com/anmonteiro/websocketaf/issues/34. *)
-  let frame ~opcode ~is_fin ~len:_ payload =
-    match opcode with
-    | `Connection_close ->
-      push_frame (Some (`Close, payload))
-    | `Ping ->
-      push_frame (Some (`Ping, payload))
-    | `Pong ->
-      push_frame (Some (`Pong, payload))
-    | `Other _ ->
-      push_frame (Some (`Other, payload))
-    | `Text ->
-      message_is_binary := `Text;
-      push_frame (Some (`Data (`Text, is_fin), payload))
-    | `Binary ->
-      message_is_binary := `Binary;
-      push_frame (Some (`Data (`Binary, is_fin), payload))
-    | `Continuation ->
-      push_frame (Some (`Data (!message_is_binary, is_fin), payload))
-  in
-
-  let eof () =
-    push_frame None in
-
-  (* The reader retrieves the next frame. If it is a data frame, it keeps a
-     reference to the payload across multiple reader calls, until the payload is
-     exhausted. *)
-  let closed = ref false in
-  let close_code = ref 1005 in
-  let current_payload = ref None in
-
-  (* Used to convert the separate on_eof payload reading callback into a FIN bit
-     on the last chunk read. See
-     https://github.com/anmonteiro/websocketaf/issues/35. *)
-  let last_chunk = ref None in
-  (* TODO Review per-chunk allocations, including current_payload contents. *)
-
-  (* For control frames, the payload can be at most 125 bytes long. We assume
-     that the first chunk will contain the whole payload, and discard any other
-     chunks that may be reported by websocket/af. *)
-  let first_chunk_received = ref false in
-  let first_chunk = ref Bigstringaf.empty in
-  let first_chunk_offset = ref 0 in
-  let first_chunk_length = ref 0 in
-  let rec drain_payload payload continuation =
-    Websocketaf.Payload.schedule_read
-      payload
-      ~on_read:(fun buffer ~off ~len ->
-        if not !first_chunk_received then begin
-          first_chunk := buffer;
-          first_chunk_offset := off;
-          first_chunk_length := len;
-          first_chunk_received := true
-        end
-        else
-          websocket_log.warning (fun log ->
-            log "Received fragmented control frame");
-        drain_payload payload continuation)
-      ~on_eof:(fun () ->
-        let payload = !first_chunk in
-        let offset = !first_chunk_offset in
-        let length = !first_chunk_length in
-        first_chunk_received := false;
-        first_chunk := Bigstringaf.empty;
-        first_chunk_offset := 0;
-        first_chunk_length := 0;
-        continuation payload offset length)
-  in
-
-  (* TODO Can this be canceled by a user's close? i.e. will that eventually
-     cause a call to eof above? *)
-  let rec read ~data ~flush ~ping ~pong ~close ~exn =
-    if !closed then
-      close !close_code
-    else
-      match !current_payload with
-      | None ->
-        Lwt.on_success (Lwt_stream.get frames) begin function
-        | None ->
-          if not !closed then begin
-            closed := true;
-            close_code := 1005
-          end;
-          Websocketaf.Wsd.close socket;
-          close !close_code
-        | Some (`Close, payload) ->
-          drain_payload payload @@ fun buffer offset length ->
-          let code =
-            if length < 2 then
-              1005
-            else
-              let high_byte = Char.code buffer.{offset}
-              and low_byte = Char.code buffer.{offset + 1} in
-              high_byte lsl 8 lor low_byte
-          in
-          if not !closed then
-            close_code := code;
-          close !close_code
-        | Some (`Ping, payload) ->
-          drain_payload payload @@
-          ping
-        | Some (`Pong, payload) ->
-          drain_payload payload @@
-          pong
-        | Some (`Other, payload) ->
-          drain_payload payload @@ fun _buffer _offset length ->
-          websocket_log.warning (fun log ->
-            log "Unknown frame type with length %i" length);
-          read ~data ~flush ~ping ~pong ~close ~exn
-        | Some (`Data properties, payload) ->
-          current_payload := Some (properties, payload);
-          read ~data ~flush ~ping ~pong ~close ~exn
-        end
-      | Some ((binary, fin), payload) ->
-        Websocketaf.Payload.schedule_read
-          payload
-          ~on_read:(fun buffer ~off ~len ->
-            match !last_chunk with
-            | None ->
-              last_chunk := Some (buffer, off, len);
-              read ~data ~flush ~ping ~pong ~close ~exn
-            | Some (last_buffer, last_offset, last_length) ->
-              last_chunk := Some (buffer, off, len);
-              let binary = binary = `Binary in
-              data last_buffer last_offset last_length binary false)
-          ~on_eof:(fun () ->
-            current_payload := None;
-            match !last_chunk with
-            | None ->
-              read ~data ~flush ~ping ~pong ~close ~exn
-            | Some (last_buffer, last_offset, last_length) ->
-              last_chunk := None;
-              let binary = binary = `Binary in
-              data last_buffer last_offset last_length binary fin)
-  in
-
-  let bytes_since_flush = ref 0 in
-
-  let flush ~close ok =
-    bytes_since_flush := 0;
-    if !closed then
-      close !close_code
-    else
-      Websocketaf.Wsd.flushed socket ok
-  in
-
-  let close code =
-    if not !closed then begin
-      (* TODO Really need to work out the "close handshake" and how it is
-         exposed in the Stream API. *)
-      (* closed := true; *)
-      Websocketaf.Wsd.close ~code:(`Other code) socket
-    end
-  in
-
-  let abort _exn = close 1005 in
-
-  let reader = Stream.reader ~read ~close ~abort in
-  Stream.forward reader stream;
-
-  let rec outgoing_loop () =
-    Stream.read
-      stream
-      ~data:(fun buffer offset length binary fin ->
-        (* Until https://github.com/anmonteiro/websocketaf/issues/33. *)
-        if not fin then
-          websocket_log.error (fun log ->
-            log "Non-FIN frames not yet supported");
-        let kind = if binary then `Binary else `Text in
-        if !closed then
-          close !close_code
-        else begin
-          Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
-          bytes_since_flush := !bytes_since_flush + length;
-          if !bytes_since_flush >= 4096 then
-            flush ~close outgoing_loop
-          else
-            outgoing_loop ()
-        end)
-      ~flush:(fun () -> flush ~close outgoing_loop)
-      ~ping:(fun _buffer _offset length ->
-        if length > 125 then
-          raise (Failure "Ping payload cannot exceed 125 bytes");
-        (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
-        if length > 0 then
-          websocket_log.warning (fun log ->
-            log "Ping with non-empty payload not yet supported");
-        if !closed then
-          close !close_code
-        else begin
-          Websocketaf.Wsd.send_ping socket;
-          outgoing_loop ()
-        end)
-      ~pong:(fun _buffer _offset length ->
-        (* TODO Is there any way for the peer to send a ping payload with more
-           than 125 bytes, forcing a too-large pong and an exception? *)
-        if length > 125 then
-          raise (Failure "Pong payload cannot exceed 125 bytes");
-        (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
-        if length > 0 then
-          websocket_log.warning (fun log ->
-            log "Pong with non-empty payload not yet supported");
-        if !closed then
-          close !close_code
-        else begin
-          Websocketaf.Wsd.send_pong socket;
-          outgoing_loop ()
-        end)
-      ~close
-      ~exn:abort
-  in
-  outgoing_loop ();
-
-  Websocketaf.Server_connection.{frame; eof}
-
 
 
 (* Wraps the user's Dream handler in the kind of handler expected by http/af.
@@ -380,7 +155,8 @@ let wrap_handler
           let proceed () =
             Websocketaf.Server_connection.create_websocket
               ~error_handler
-              (websocket_handler (Message.client_stream response))
+              (Dream_httpaf.Websocket.websocket_handler
+                (Message.client_stream response))
             |> Gluten.make (module Websocketaf.Server_connection)
             |> upgrade
           in
diff --git a/src/http/shared/dune b/src/http/shared/dune
new file mode 100644
index 00000000..07668721
--- /dev/null
+++ b/src/http/shared/dune
@@ -0,0 +1,10 @@
+(library
+ (public_name dream-httpaf)
+ (name dream_httpaf)
+ (libraries
+  bigstringaf
+  dream-pure
+  dream-httpaf.websocketaf
+ )
+ (preprocess (pps lwt_ppx))
+ (instrumentation (backend bisect_ppx)))
diff --git a/src/http/shared/websocket.ml b/src/http/shared/websocket.ml
new file mode 100644
index 00000000..6c972ce0
--- /dev/null
+++ b/src/http/shared/websocket.ml
@@ -0,0 +1,238 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2022 Anton Bachin *)
+
+
+
+module Stream = Dream_pure.Stream
+
+
+
+let websocket_handler stream socket =
+  (* Queue of received frames. There doesn't appear to be a nice way to achieve
+     backpressure with the current API of websocket/af, so that will have to be
+     added later. The user-facing API of Dream does support backpressure. *)
+  let frames, push_frame = Lwt_stream.create () in
+  let message_is_binary = ref `Binary in
+
+  (* Frame reader called by websocket/af on each frame received. There is no
+     good way to truly throttle this, hence this frame reader pushes frame
+     objects into the above frame queue for the reader to take from later. See
+     https://github.com/anmonteiro/websocketaf/issues/34. *)
+  let frame ~opcode ~is_fin ~len:_ payload =
+    match opcode with
+    | `Connection_close ->
+      push_frame (Some (`Close, payload))
+    | `Ping ->
+      push_frame (Some (`Ping, payload))
+    | `Pong ->
+      push_frame (Some (`Pong, payload))
+    | `Other _ ->
+      push_frame (Some (`Other, payload))
+    | `Text ->
+      message_is_binary := `Text;
+      push_frame (Some (`Data (`Text, is_fin), payload))
+    | `Binary ->
+      message_is_binary := `Binary;
+      push_frame (Some (`Data (`Binary, is_fin), payload))
+    | `Continuation ->
+      push_frame (Some (`Data (!message_is_binary, is_fin), payload))
+  in
+
+  let eof () =
+    push_frame None in
+
+  (* The reader retrieves the next frame. If it is a data frame, it keeps a
+     reference to the payload across multiple reader calls, until the payload is
+     exhausted. *)
+  let closed = ref false in
+  let close_code = ref 1005 in
+  let current_payload = ref None in
+
+  (* Used to convert the separate on_eof payload reading callback into a FIN bit
+     on the last chunk read. See
+     https://github.com/anmonteiro/websocketaf/issues/35. *)
+  let last_chunk = ref None in
+  (* TODO Review per-chunk allocations, including current_payload contents. *)
+
+  (* For control frames, the payload can be at most 125 bytes long. We assume
+     that the first chunk will contain the whole payload, and discard any other
+     chunks that may be reported by websocket/af. *)
+  let first_chunk_received = ref false in
+  let first_chunk = ref Bigstringaf.empty in
+  let first_chunk_offset = ref 0 in
+  let first_chunk_length = ref 0 in
+  let rec drain_payload payload continuation =
+    Websocketaf.Payload.schedule_read
+      payload
+      ~on_read:(fun buffer ~off ~len ->
+        if not !first_chunk_received then begin
+          first_chunk := buffer;
+          first_chunk_offset := off;
+          first_chunk_length := len;
+          first_chunk_received := true
+        end
+        else
+          (* TODO How to integrate this thing with logging? *)
+          (* websocket_log.warning (fun log ->
+            log "Received fragmented control frame"); *)
+          ();
+        drain_payload payload continuation)
+      ~on_eof:(fun () ->
+        let payload = !first_chunk in
+        let offset = !first_chunk_offset in
+        let length = !first_chunk_length in
+        first_chunk_received := false;
+        first_chunk := Bigstringaf.empty;
+        first_chunk_offset := 0;
+        first_chunk_length := 0;
+        continuation payload offset length)
+  in
+
+  (* TODO Can this be canceled by a user's close? i.e. will that eventually
+     cause a call to eof above? *)
+  let rec read ~data ~flush ~ping ~pong ~close ~exn =
+    if !closed then
+      close !close_code
+    else
+      match !current_payload with
+      | None ->
+        Lwt.on_success (Lwt_stream.get frames) begin function
+        | None ->
+          if not !closed then begin
+            closed := true;
+            close_code := 1005
+          end;
+          Websocketaf.Wsd.close socket;
+          close !close_code
+        | Some (`Close, payload) ->
+          drain_payload payload @@ fun buffer offset length ->
+          let code =
+            if length < 2 then
+              1005
+            else
+              let high_byte = Char.code buffer.{offset}
+              and low_byte = Char.code buffer.{offset + 1} in
+              high_byte lsl 8 lor low_byte
+          in
+          if not !closed then
+            close_code := code;
+          close !close_code
+        | Some (`Ping, payload) ->
+          drain_payload payload @@
+          ping
+        | Some (`Pong, payload) ->
+          drain_payload payload @@
+          pong
+        | Some (`Other, payload) ->
+          drain_payload payload @@ fun _buffer _offset length ->
+          ignore length; (* TODO log instead *)
+          (* websocket_log.warning (fun log ->
+            log "Unknown frame type with length %i" length); *)
+          read ~data ~flush ~ping ~pong ~close ~exn
+        | Some (`Data properties, payload) ->
+          current_payload := Some (properties, payload);
+          read ~data ~flush ~ping ~pong ~close ~exn
+        end
+      | Some ((binary, fin), payload) ->
+        Websocketaf.Payload.schedule_read
+          payload
+          ~on_read:(fun buffer ~off ~len ->
+            match !last_chunk with
+            | None ->
+              last_chunk := Some (buffer, off, len);
+              read ~data ~flush ~ping ~pong ~close ~exn
+            | Some (last_buffer, last_offset, last_length) ->
+              last_chunk := Some (buffer, off, len);
+              let binary = binary = `Binary in
+              data last_buffer last_offset last_length binary false)
+          ~on_eof:(fun () ->
+            current_payload := None;
+            match !last_chunk with
+            | None ->
+              read ~data ~flush ~ping ~pong ~close ~exn
+            | Some (last_buffer, last_offset, last_length) ->
+              last_chunk := None;
+              let binary = binary = `Binary in
+              data last_buffer last_offset last_length binary fin)
+  in
+
+  let bytes_since_flush = ref 0 in
+
+  let flush ~close ok =
+    bytes_since_flush := 0;
+    if !closed then
+      close !close_code
+    else
+      Websocketaf.Wsd.flushed socket ok
+  in
+
+  let close code =
+    if not !closed then begin
+      (* TODO Really need to work out the "close handshake" and how it is
+         exposed in the Stream API. *)
+      (* closed := true; *)
+      Websocketaf.Wsd.close ~code:(`Other code) socket
+    end
+  in
+
+  let abort _exn = close 1005 in
+
+  let reader = Stream.reader ~read ~close ~abort in
+  Stream.forward reader stream;
+
+  let rec outgoing_loop () =
+    Stream.read
+      stream
+      ~data:(fun buffer offset length binary _fin ->
+        (* Until https://github.com/anmonteiro/websocketaf/issues/33. *)
+        (* if not fin then
+          websocket_log.error (fun log ->
+            log "Non-FIN frames not yet supported"); *)
+        let kind = if binary then `Binary else `Text in
+        if !closed then
+          close !close_code
+        else begin
+          Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
+          bytes_since_flush := !bytes_since_flush + length;
+          if !bytes_since_flush >= 4096 then
+            flush ~close outgoing_loop
+          else
+            outgoing_loop ()
+        end)
+      ~flush:(fun () -> flush ~close outgoing_loop)
+      ~ping:(fun _buffer _offset length ->
+        if length > 125 then
+          raise (Failure "Ping payload cannot exceed 125 bytes");
+        (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
+        (* if length > 0 then
+          websocket_log.warning (fun log ->
+            log "Ping with non-empty payload not yet supported"); *)
+        if !closed then
+          close !close_code
+        else begin
+          Websocketaf.Wsd.send_ping socket;
+          outgoing_loop ()
+        end)
+      ~pong:(fun _buffer _offset length ->
+        (* TODO Is there any way for the peer to send a ping payload with more
+           than 125 bytes, forcing a too-large pong and an exception? *)
+        if length > 125 then
+          raise (Failure "Pong payload cannot exceed 125 bytes");
+        (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
+        (* if length > 0 then
+          websocket_log.warning (fun log ->
+            log "Pong with non-empty payload not yet supported"); *)
+        if !closed then
+          close !close_code
+        else begin
+          Websocketaf.Wsd.send_pong socket;
+          outgoing_loop ()
+        end)
+      ~close
+      ~exn:abort
+  in
+  outgoing_loop ();
+
+  Websocketaf.Server_connection.{frame; eof}

From 5896c5a6413667477d93cc7f04e2d96f21e0e812 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 21 Jan 2022 10:48:51 +0300
Subject: [PATCH 129/312] dream-pure: generalize higher-level stream I/O

...so that it can be used to perform operations on either the server's
stream or the client's stream.
---
 src/dream.ml           |  6 +++---
 src/graphql/graphql.ml | 20 ++++++++++----------
 src/pure/message.ml    | 12 ++++++------
 src/pure/message.mli   |  7 ++++---
 src/server/helpers.ml  | 11 +++++++++++
 src/server/upload.ml   |  4 ++--
 6 files changed, 36 insertions(+), 24 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index d2455e86..abd1e548 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -149,9 +149,9 @@ let all_cookies = Cookie.all_cookies
 
 let body = Message.body
 let set_body = Message.set_body
-let read = Message.read
-let write = Message.write
-let flush = Message.flush
+let read = Helpers.read
+let write = Helpers.write
+let flush = Helpers.flush
 let close = Message.close
 type buffer = Stream.buffer
 type stream = Stream.stream
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index c09b3f46..73c93b99 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -116,7 +116,7 @@ let complete_message id =
 (* TODO Test client complete racing against a stream. *)
 let handle_over_websocket make_context schema subscriptions request response =
   let rec loop inited =
-    match%lwt Message.read response with
+    match%lwt Helpers.read response with
     | None ->
       log.info (fun log -> log ~request "GraphQL WebSocket closed by client");
       close_and_clean subscriptions response
@@ -145,7 +145,7 @@ let handle_over_websocket make_context schema subscriptions request response =
         close_and_clean subscriptions response ~code:4429
       end
       else begin
-        let%lwt () = Message.write response ack_message in
+        let%lwt () = Helpers.write response ack_message in
         loop true
       end
 
@@ -193,13 +193,13 @@ let handle_over_websocket make_context schema subscriptions request response =
               log.warning (fun log ->
                 log ~request
                   "subscribe: error %s" (Yojson.Basic.to_string json));
-              Message.write response (error_message id json)
+              Helpers.write response (error_message id json)
 
             (* It's not clear that this case ever occurs, because graphql-ws is
                only used for subscriptions, at the protocol level. *)
             | Ok (`Response json) ->
-              let%lwt () = Message.write response (data_message id json) in
-              let%lwt () = Message.write response (complete_message id) in
+              let%lwt () = Helpers.write response (data_message id json) in
+              let%lwt () = Helpers.write response (complete_message id) in
               Lwt.return_unit
 
             | Ok (`Stream (stream, close)) ->
@@ -216,15 +216,15 @@ let handle_over_websocket make_context schema subscriptions request response =
               let%lwt () =
                 stream |> Lwt_stream.iter_s (function
                   | Ok json ->
-                    Message.write response (data_message id json)
+                    Helpers.write response (data_message id json)
                   | Error json ->
                     log.warning (fun log ->
                       log ~request
                         "Subscription: error %s" (Yojson.Basic.to_string json));
-                    Message.write response (error_message id json))
+                    Helpers.write response (error_message id json))
               in
 
-              let%lwt () = Message.write response (complete_message id) in
+              let%lwt () = Helpers.write response (complete_message id) in
               Hashtbl.remove subscriptions id;
               Lwt.return_unit
 
@@ -240,12 +240,12 @@ let handle_over_websocket make_context schema subscriptions request response =
 
             try%lwt
               let%lwt () =
-                Message.write
+                Helpers.write
                   response
                   (error_message id (make_error "Internal Server Error"))
               in
               if !subscribed then
-                Message.write response (complete_message id)
+                Helpers.write response (complete_message id)
               else
                 Lwt.return_unit
             with _ ->
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 19b02a50..cd08da95 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -187,14 +187,14 @@ let sort_headers headers =
 
 (* Streams *)
 
-let read message =
-  Stream.read_convenience message.server_stream
+let read stream =
+  Stream.read_convenience stream
 
 (* TODO Need to expose FIN. However, it can't have any effect even on
    WebSockets, because websocket/af does not offer the ability to pass FIN. It
    is hardcoded to true. *)
 (* TODO Also expose binary/text. What should be the default? *)
-let write ?kind message chunk =
+let write ?kind stream chunk =
   let binary =
     match kind with
     | None | Some `Text -> false
@@ -205,7 +205,7 @@ let write ?kind message chunk =
   let buffer = Bigstringaf.of_string ~off:0 ~len:length chunk in
   (* TODO Better handling of close? But it can't even occur with http/af. *)
   Stream.write
-    message.server_stream
+    stream
     buffer 0 length binary true
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
     ~exn:(fun exn -> Lwt.wakeup_later_exn resolver exn)
@@ -214,10 +214,10 @@ let write ?kind message chunk =
 
 (* TODO How are remote closes actually handled? There is no way for http/af to
    report them to the user application through the writer. *)
-let flush message =
+let flush stream =
   let promise, resolver = Lwt.wait () in
   Stream.flush
-    message.server_stream
+    stream
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
     ~exn:(fun exn -> Lwt.wakeup_later_exn resolver exn)
     (Lwt.wakeup_later resolver);
diff --git a/src/pure/message.mli b/src/pure/message.mli
index 330d1270..e7dbeb53 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -65,9 +65,10 @@ val sort_headers : (string * string) list -> (string * string) list
 
 val body : 'a message -> string promise
 val set_body : 'a message -> string -> unit
-val read : 'a message -> string option promise
-val write : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
-val flush : response -> unit promise
+val read : Stream.stream -> string option promise
+val write :
+  ?kind:[< `Text | `Binary ] -> Stream.stream -> string -> unit promise
+val flush : Stream.stream -> unit promise
 val close : ?code:int -> 'a message -> unit promise
 val client_stream : 'a message -> Stream.stream
 val server_stream : 'a message -> Stream.stream
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index f4fa16f1..3f2188c6 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -139,3 +139,14 @@ let empty ?headers status =
 
 let not_found _ =
   respond ~status:`Not_Found ""
+
+
+
+let read message =
+  Message.read (Message.server_stream message)
+
+let write ?kind message chunk =
+  Message.write ?kind (Message.server_stream message) chunk
+
+let flush message =
+  Message.flush (Message.server_stream message)
diff --git a/src/server/upload.ml b/src/server/upload.ml
index b8009069..886ed1fe 100644
--- a/src/server/upload.ml
+++ b/src/server/upload.ml
@@ -115,7 +115,7 @@ and upload (request : Message.request) =
       failwith message
 
     | Some content_type ->
-      let body = Lwt_stream.from (fun () -> Message.read request) in
+      let body = Lwt_stream.from (fun () -> Helpers.read request) in
       let `Parse th, stream =
         Multipart_form_lwt.stream ~identify body content_type in
       Lwt.async (fun () -> let%lwt _ = th in Lwt.return_unit);
@@ -135,7 +135,7 @@ let multipart ?(csrf=true) ~now request =
   match content_type with
   | None -> Lwt.return `Wrong_content_type
   | Some content_type ->
-    let body = Lwt_stream.from (fun () -> Message.read request) in
+    let body = Lwt_stream.from (fun () -> Helpers.read request) in
     match%lwt Multipart_form_lwt.of_stream_to_list body content_type with
     | Error (`Msg _err) ->
       Lwt.return `Wrong_content_type (* XXX(dinosaure): better error? *)

From e20b0b4e183cab242a88f311f37621445aa9ba7d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 21 Jan 2022 11:31:03 +0300
Subject: [PATCH 130/312] Get rid of Stream.ready

---
 src/dream.ml          |  1 -
 src/dream.mli         |  3 --
 src/pure/stream.ml    | 71 ++++++++++++++-----------------------------
 src/pure/stream.mli   |  2 --
 src/server/helpers.ml | 11 ++-----
 5 files changed, 26 insertions(+), 62 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index abd1e548..426a64cc 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -160,7 +160,6 @@ let server_stream = Message.server_stream
 let set_client_stream = Message.set_client_stream
 let set_server_stream = Message.set_server_stream
 let read_stream = Stream.read
-let ready_stream = Stream.ready
 let write_stream = Stream.write
 let flush_stream = Stream.flush
 let ping_stream = Stream.ping
diff --git a/src/dream.mli b/src/dream.mli
index 46f59c45..504853ba 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -838,9 +838,6 @@ val read_stream :
     - [~close] if close is requested, and
     - [~exn] to report an exception. *)
 
-val ready_stream :
-  stream -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
-
 val write_stream :
   stream -> buffer -> int -> int -> bool -> bool -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
 
diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 5c454858..cbd04ffe 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -33,7 +33,6 @@ type reader = {
 }
 
 type writer = {
-  ready : write;
   data : buffer -> int -> int -> bool -> bool -> write;
   flush : write;
   ping : buffer -> int -> int -> write;
@@ -61,9 +60,6 @@ let no_reader = {
 }
 
 let no_writer = {
-  ready =
-    (fun ~close:_ ~exn:_ _ok ->
-      raise (Failure "ready called on a read-only stream"));
   data =
     (fun _buffer _offset _length _binary _fin ~close:_ ~exn:_ _ok ->
       raise (Failure "write to a read-only stream"));
@@ -148,10 +144,6 @@ let abort stream exn =
   stream.reader.abort exn;
   stream.writer.abort exn
 
-(* TODO Test this somehow with guards for early writing on a pipe. *)
-let ready stream ~close ~exn ok =
-  stream.writer.ready ~close ~exn ok
-
 let write stream buffer offset length binary fin ~close ~exn ok =
   stream.writer.data buffer offset length binary fin ~close ~exn ok
 
@@ -240,67 +232,55 @@ let pipe () =
       exn the_exn
   in
 
-  let ready ~close ~exn ok =
+  let rec data buffer offset length binary fin ~close ~exn ok =
     match internal.state with
     | `Idle ->
-      internal.write_ok_callback <- ok;
+      internal.write_ok_callback <- (fun () ->
+        data buffer offset length binary fin ~close ~exn ok);
       internal.write_close_callback <- close;
-      internal.write_abort_callback <- exn;
-    | `Reader_waiting ->
-      ok ()
-    | `Closed code ->
-      close code
-    | `Aborted the_exn ->
-      exn the_exn
-  in
-
-  let data buffer offset length binary fin ~close ~exn ok =
-    match internal.state with
-    | `Idle ->
-      raise (Failure "stream write: the stream is not ready")
+      internal.write_abort_callback <- exn
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_data_callback = internal.read_data_callback in
       clean_up_reader_fields internal;
-      internal.write_ok_callback <- ok;
-      internal.write_close_callback <- close;
-      internal.write_abort_callback <- exn;
       read_data_callback buffer offset length binary fin;
+      ok ()
     | `Closed code ->
       close code
     | `Aborted the_exn ->
       exn the_exn
   in
 
-  let flush ~close ~exn ok =
+  let rec flush ~close ~exn ok =
     match internal.state with
     | `Idle ->
-      raise (Failure "stream flush: the previous write has not completed")
+      internal.write_ok_callback <- (fun () ->
+        flush ~close ~exn ok);
+      internal.write_close_callback <- close;
+      internal.write_abort_callback <- exn
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_flush_callback = internal.read_flush_callback in
       clean_up_reader_fields internal;
-      internal.write_ok_callback <- ok;
-      internal.write_close_callback <- close;
-      internal.write_abort_callback <- exn;
-      read_flush_callback ()
+      read_flush_callback ();
+      ok ()
     | `Closed code ->
       close code
     | `Aborted the_exn ->
       exn the_exn
   in
 
-  let ping buffer offset length ~close ~exn ok =
+  let rec ping buffer offset length ~close ~exn ok =
     match internal.state with
     | `Idle ->
-      raise (Failure "stream ping: the previous write has not completed")
+      internal.write_ok_callback <- (fun () ->
+        ping buffer offset length ~close ~exn ok);
+      internal.write_close_callback <- close;
+      internal.write_abort_callback <- exn
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_ping_callback = internal.read_ping_callback in
       clean_up_reader_fields internal;
-      internal.write_ok_callback <- ok;
-      internal.write_close_callback <- close;
-      internal.write_abort_callback <- exn;
       read_ping_callback buffer offset length
     | `Closed code ->
       close code
@@ -308,17 +288,17 @@ let pipe () =
       exn the_exn
   in
 
-  let pong buffer offset length ~close ~exn ok =
+  let rec pong buffer offset length ~close ~exn ok =
     match internal.state with
     | `Idle ->
-      raise (Failure "stream pong: the previous write has not completed")
+      internal.write_ok_callback <- (fun () ->
+        pong buffer offset length ~close ~exn ok);
+      internal.write_close_callback <- close;
+      internal.write_abort_callback <- exn
     | `Reader_waiting ->
       internal.state <- `Idle;
       let read_pong_callback = internal.read_pong_callback in
       clean_up_reader_fields internal;
-      internal.write_ok_callback <- ok;
-      internal.write_close_callback <- close;
-      internal.write_abort_callback <- exn;
       read_pong_callback buffer offset length
     | `Closed code ->
       close code
@@ -368,7 +348,6 @@ let pipe () =
     abort;
   }
   and writer = {
-    ready;
     data;
     flush;
     ping;
@@ -381,10 +360,6 @@ let pipe () =
 
 let forward (reader : reader) stream =
   let rec loop () =
-    stream.writer.ready
-      ~close:reader.close
-      ~exn:reader.abort
-      (fun () ->
         reader.read
           ~data:(fun buffer offset length binary fin ->
             stream.writer.data
@@ -401,7 +376,7 @@ let forward (reader : reader) stream =
             stream.writer.pong
               buffer offset length ~close:reader.close ~exn:reader.abort loop)
           ~close:stream.writer.close
-          ~exn:stream.writer.abort)
+          ~exn:stream.writer.abort
   in
   loop ()
 
diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index ccdb16b8..fa4814ef 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -87,8 +87,6 @@ val read_until_close : stream -> string promise
 (** Reads a stream completely until [~close], and accumulates the data into a
     string. *)
 
-val ready : stream -> write
-
 val write : stream -> buffer -> int -> int -> bool -> bool -> write
 (** A writing function that sends a data buffer on the given stream. No more
     writing functions should be called on the stream until this function calls
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index 3f2188c6..ea38ebec 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -100,10 +100,7 @@ let stream ?status ?code ?headers callback =
     Message.response ?status ?code ?headers client_stream server_stream in
   (* TODO Should set up an error handler for this. YES. *)
   (* TODO Make sure the request id is propagated to the callback. *)
-  let wrapped_callback _ = Lwt.async (fun () -> callback response) in
-  Stream.ready
-    server_stream
-    ~close:wrapped_callback ~exn:wrapped_callback wrapped_callback;
+  Lwt.async (fun () -> callback response);
   Lwt.return response
 
 let websocket_field =
@@ -128,10 +125,8 @@ let websocket ?headers callback =
       ~status:`Switching_Protocols ?headers client_stream server_stream in
   Message.set_field response websocket_field true;
   (* TODO Make sure the request id is propagated to the callback. *)
-  let wrapped_callback _ = Lwt.async (fun () -> callback response) in
-  Stream.ready
-    server_stream
-    ~close:wrapped_callback ~exn:wrapped_callback wrapped_callback;
+  (* TODO Close the WwbSocket on leaked exceptions, etc. *)
+  Lwt.async (fun () -> callback response);
   Lwt.return response
 
 let empty ?headers status =

From 9ee3e04481bfb631a3c9502a4d8c0a267614ab92 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 22 Jan 2022 22:04:43 +0300
Subject: [PATCH 131/312] Allow pushing exceptions into string streams

---
 src/pure/stream.ml | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index cbd04ffe..856b4acf 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -105,24 +105,34 @@ let string_reader the_string =
   (* Storing the string in a ref here so that we can "lose" it eagerly once
      the stream is closed, making the memory available to the GC. *)
   let string_ref = ref (Some the_string) in
+  let exn_ref = ref None in
 
-  let read ~data ~flush:_ ~ping:_ ~pong:_ ~close ~exn:_ =
-    match !string_ref with
-    | Some stored_string ->
-      string_ref := None;
-      let length = String.length stored_string in
-      data
-        (Bigstringaf.of_string ~off:0 ~len:length stored_string)
-        0 length true true
+  let read ~data ~flush:_ ~ping:_ ~pong:_ ~close ~exn =
+    match !exn_ref with
+    | Some the_exn ->
+      exn the_exn
     | None ->
-      close 1000
+      match !string_ref with
+      | Some stored_string ->
+        string_ref := None;
+        let length = String.length stored_string in
+        data
+          (Bigstringaf.of_string ~off:0 ~len:length stored_string)
+          0 length true true
+      | None ->
+        close 1000
   in
 
   let close _code =
+    string_ref := None
+  in
+
+  let abort exn =
     string_ref := None;
+    exn_ref := Some exn
   in
 
-  reader ~read ~close ~abort:close
+  reader ~read ~close ~abort
 
 let string the_string =
   if String.length the_string = 0 then

From 3705621262ab9a2751a160f8e8e9f3984760de3c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 22 Jan 2022 22:05:55 +0300
Subject: [PATCH 132/312] Don't terminate convenience readers on pong events

---
 src/pure/stream.ml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 856b4acf..cbc31ca5 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -409,7 +409,7 @@ let read_convenience stream =
         stream.writer.pong buffer offset length ~close ~exn:abort loop)
 
       ~pong:(fun _buffer _offset _length ->
-        ())
+        loop ())
 
       ~close
 
@@ -454,7 +454,7 @@ let read_until_close stream =
         stream.writer.pong buffer offset length ~close ~exn:abort loop)
 
       ~pong:(fun _buffer _offset _length ->
-        ())
+        loop ())
 
       ~close
 

From 7e18c4d2f4c3c9b69ac2963e5d25e9e5a131de80 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 22 Jan 2022 22:14:22 +0300
Subject: [PATCH 133/312] stream.ml: fix whitespace from previous change

---
 src/pure/stream.ml | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index cbc31ca5..4e25c179 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -370,23 +370,23 @@ let pipe () =
 
 let forward (reader : reader) stream =
   let rec loop () =
-        reader.read
-          ~data:(fun buffer offset length binary fin ->
-            stream.writer.data
-              buffer offset length
-              binary fin
-              ~close:reader.close ~exn:reader.abort
-              loop)
-          ~flush:(fun () ->
-            stream.writer.flush ~close:reader.close ~exn:reader.abort loop)
-          ~ping:(fun buffer offset length ->
-            stream.writer.ping
-              buffer offset length ~close:reader.close ~exn:reader.abort loop)
-          ~pong:(fun buffer offset length ->
-            stream.writer.pong
-              buffer offset length ~close:reader.close ~exn:reader.abort loop)
-          ~close:stream.writer.close
-          ~exn:stream.writer.abort
+    reader.read
+      ~data:(fun buffer offset length binary fin ->
+        stream.writer.data
+          buffer offset length
+          binary fin
+          ~close:reader.close ~exn:reader.abort
+          loop)
+      ~flush:(fun () ->
+        stream.writer.flush ~close:reader.close ~exn:reader.abort loop)
+      ~ping:(fun buffer offset length ->
+        stream.writer.ping
+          buffer offset length ~close:reader.close ~exn:reader.abort loop)
+      ~pong:(fun buffer offset length ->
+        stream.writer.pong
+          buffer offset length ~close:reader.close ~exn:reader.abort loop)
+      ~close:stream.writer.close
+      ~exn:stream.writer.abort
   in
   loop ()
 

From 3d05ac6ed7a09afc9a1cd150bcba7d28ad057f7c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 25 Jan 2022 12:17:30 +0300
Subject: [PATCH 134/312] Stream: resume writer after ping, pong

---
 src/pure/stream.ml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 4e25c179..6909f7e3 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -291,7 +291,8 @@ let pipe () =
       internal.state <- `Idle;
       let read_ping_callback = internal.read_ping_callback in
       clean_up_reader_fields internal;
-      read_ping_callback buffer offset length
+      read_ping_callback buffer offset length;
+      ok ()
     | `Closed code ->
       close code
     | `Aborted the_exn ->
@@ -309,7 +310,8 @@ let pipe () =
       internal.state <- `Idle;
       let read_pong_callback = internal.read_pong_callback in
       clean_up_reader_fields internal;
-      read_pong_callback buffer offset length
+      read_pong_callback buffer offset length;
+      ok ()
     | `Closed code ->
       close code
     | `Aborted the_exn ->

From b76ac67cba4bd399a306c61b05cc994fce8d5c2f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 27 Jan 2022 14:34:38 +0300
Subject: [PATCH 135/312] Transfer-Encoding: check for Content-Length

---
 src/pure/stream.ml           | 2 ++
 src/server/content_length.ml | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 6909f7e3..8b11b333 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -421,6 +421,8 @@ let read_convenience stream =
 
   promise
 
+(* TODO It's probably best to protect "wakeups" of the promise to prevent
+   Invalid_argument from Lwt. *)
 let read_until_close stream =
   let promise, resolver = Lwt.wait () in
   let length = ref 0 in
diff --git a/src/server/content_length.ml b/src/server/content_length.ml
index 4c411ea8..dc33bd4b 100644
--- a/src/server/content_length.ml
+++ b/src/server/content_length.ml
@@ -20,5 +20,6 @@ let content_length next_handler request =
   else
     let%lwt (response : Message.response) = next_handler request in
     if not (Message.has_header response "Transfer-Encoding") then
-      Message.add_header response "Transfer-Encoding" "chunked";
+      if not (Message.has_header response "Content-Length") then
+        Message.add_header response "Transfer-Encoding" "chunked";
     Lwt.return response

From 264e37d7fcd982e1ceacf4fb4b1ba8e9f0010562 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 2 Feb 2022 13:51:05 +0300
Subject: [PATCH 136/312] Adapt to recent changes in multipart_form

Fixes #193.
Fixes #197.
---
 dream.opam      | 3 ++-
 src/server/dune | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/dream.opam b/dream.opam
index 198b9bcd..1e59ef25 100644
--- a/dream.opam
+++ b/dream.opam
@@ -67,7 +67,8 @@ depends: [
   "mirage-clock"
   "mirage-crypto" {>= "0.8.1"}  # AES-256-GCM.
   "mirage-crypto-rng" {>= "0.8.0"}  # Signature of initialize.
-  "multipart_form" {>= "0.3.0"}
+  "multipart_form" {>= "0.4.0"}
+  "multipart_form-lwt"
   "ocaml" {>= "4.08.0"}
   "ptime" {>= "0.8.1"}  # Ptime.v.
   "ssl" {>= "0.5.8"}  # Ssl.get_negotiated_alpn_protocol.
diff --git a/src/server/dune b/src/server/dune
index 9afd04a3..d7dd67b7 100644
--- a/src/server/dune
+++ b/src/server/dune
@@ -11,7 +11,7 @@
   magic-mime
   mirage-clock
   multipart_form
-  multipart_form.lwt
+  multipart_form-lwt
   ptime
   unstrctrd
   uri

From 257f0e0d41828d7eefa1e41f2de05dbb8ef9ed7b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 4 Feb 2022 11:10:13 +0300
Subject: [PATCH 137/312] Makefile: respect workspace root in test targets

---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index fe0f7ad4..3ebc946f 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ test :
 
 .PHONY : test-watch
 test-watch :
-	@dune build --no-print-directory -w --root . @$(TEST)/runtest
+	@dune build --no-print-directory -w @$(TEST)/runtest
 
 .PHONY : coverage-serve
 coverage-serve :
@@ -27,7 +27,7 @@ coverage-serve :
 
 .PHONY : promote
 promote :
-	dune promote --root .
+	dune promote
 	@make --no-print-directory test
 
 .PHONY : docs

From acc2a1695effa5810a32bc3c0cdeda72cff6bd2d Mon Sep 17 00:00:00 2001
From: Yawar Amin <yawar.amin@gmail.com>
Date: Tue, 8 Feb 2022 00:45:18 -0500
Subject: [PATCH 138/312] Add Dream.csrf_tag (#201)

This lets us easily inject a hidden field containing a CSRF token into
a form, while manually controlling all attributes of the form, e.g.
`name`, `id`, etc.

Fixes #199.
---
 example/d-form/README.md                      | 13 ++---
 example/d-form/form.eml.ml                    |  3 +-
 example/g-upload/README.md                    | 13 ++---
 example/g-upload/upload.eml.ml                |  3 +-
 example/h-sql/README.md                       |  3 +-
 example/h-sql/sql.eml.ml                      |  3 +-
 example/w-flash/README.md                     |  3 +-
 example/w-flash/flash.eml.ml                  |  3 +-
 .../w-multipart-dump/multipart_dump.eml.ml    |  3 +-
 example/w-postgres/postgres.eml.ml            |  3 +-
 example/w-upload-stream/README.md             |  5 +-
 example/w-upload-stream/upload_stream.eml.ml  |  3 +-
 src/dream.ml                                  |  1 +
 src/dream.mli                                 | 54 +++++++++++++------
 src/mirage/mirage.ml                          | 15 +++---
 src/mirage/mirage.mli                         |  2 +
 src/server/tag.eml.ml                         |  6 ++-
 17 files changed, 89 insertions(+), 47 deletions(-)

diff --git a/example/d-form/README.md b/example/d-form/README.md
index 8a80c227..0e7327bf 100644
--- a/example/d-form/README.md
+++ b/example/d-form/README.md
@@ -16,7 +16,8 @@ let show_form ?message request =
       <p>You entered: <b><%s message %>!</b></p>
 %   end;
 
-    <%s! Dream.form_tag ~action:"/" request %>
+    <form action="/" method="post">
+      <%s! Dream.csrf_tag request %>
       <input name="message" autofocus>
     </form>
 
@@ -53,13 +54,13 @@ Try it in the [playground](http://dream.as/d-form).
 
 <br>
 
-We didn't write a literal `<form>` tag in the template. Instead, we used
-[`Dream.form_tag`](https://aantron.github.io/dream/#val-form_tag) to generate
-the tag. [`Dream.form_tag`](https://aantron.github.io/dream/#val-form_tag) also
-snuck in a hidden `<input>` field containing a CSRF token:
+We wrote a literal `<form>` tag in the template, and injected a field containing
+a CSRF token into it using the
+[`Dream.csrf_tag`](https://aantron.github.io/dream/#val-csrf_tag) helper to
+generate the `<input>` tag.
 
 ```html
-<form method="POST" action="/">
+<form method="post" action="/">
   <input name="dream.csrf" type="hidden" value="j8vjZ6...">
 
   <!-- The rest we actually wrote ourselves in the template! -->
diff --git a/example/d-form/form.eml.ml b/example/d-form/form.eml.ml
index 7ee950b5..16ac8131 100644
--- a/example/d-form/form.eml.ml
+++ b/example/d-form/form.eml.ml
@@ -8,7 +8,8 @@ let show_form ?message request =
       <p>You entered: <b><%s message %>!</b></p>
 %   end;
 
-    <%s! Dream.form_tag ~action:"/" request %>
+    <form action="/" method="post">
+      <%s! Dream.csrf_tag request %>
       <input name="message" autofocus>
     </form>
 
diff --git a/example/g-upload/README.md b/example/g-upload/README.md
index b9f94ef9..de859551 100644
--- a/example/g-upload/README.md
+++ b/example/g-upload/README.md
@@ -11,7 +11,8 @@ sizes:
 let home request =
   <html>
   <body>
-    <%s! Dream.form_tag ~action:"/" ~enctype:`Multipart_form_data request %>
+    <form action="/" method="post" enctype="multipart/form-data">
+      <%s! Dream.csrf_tag request %>
       <input name="files" type="file" multiple>
       <button>Submit!</button>
     </form>
@@ -85,13 +86,13 @@ streaming file uploads.
 [`Dream.multipart`](https://aantron.github.io/dream/#val-multipart) behaves just
 like [`Dream.form`](https://aantron.github.io/dream/#val-form) when it comes to
 [CSRF protection](https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html).
-See example [**`d-form`**](../d-form#files). We still use
-[`Dream.form_tag`](https://aantron.github.io/dream/#val-form_tag) to generate
-the form in the template. The only difference is that we now pass it
-``~enctype:`Multipart_form_data`` to make its output look like this:
+See example [**`d-form`**](../d-form#files). We use
+[`Dream.csrf_tag`](https://aantron.github.io/dream/#val-csrf_tag) to generate
+the CSRF token in the template, and pass the `enctype="multipart/form-data"`
+attribute as needed for forms to upload files:
 
 ```html
-<form method="POST" action="/" enctype="multipart/form-data">
+<form method="post" action="/" enctype="multipart/form-data">
   <input name="dream.csrf" type="hidden" value="...">
 
   <!-- Our fields -->
diff --git a/example/g-upload/upload.eml.ml b/example/g-upload/upload.eml.ml
index 5c2a1752..e40cbc1e 100644
--- a/example/g-upload/upload.eml.ml
+++ b/example/g-upload/upload.eml.ml
@@ -1,7 +1,8 @@
 let home request =
   <html>
   <body>
-    <%s! Dream.form_tag ~action:"/" ~enctype:`Multipart_form_data request %>
+    <form action="/" method="post" enctype="multipart/form-data">
+      <%s! Dream.csrf_tag request %>
       <input name="files" type="file" multiple>
       <button>Submit!</button>
     </form>
diff --git a/example/h-sql/README.md b/example/h-sql/README.md
index bf85abb1..4bd9bbea 100644
--- a/example/h-sql/README.md
+++ b/example/h-sql/README.md
@@ -35,7 +35,8 @@ let render comments request =
 %   comments |> List.iter (fun (_id, comment) ->
       <p><%s comment %></p><% ); %>
 
-    <%s! Dream.form_tag ~action:"/" request %>
+    <form action="/" method="post">
+      <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
 
diff --git a/example/h-sql/sql.eml.ml b/example/h-sql/sql.eml.ml
index fe406b97..582ad660 100644
--- a/example/h-sql/sql.eml.ml
+++ b/example/h-sql/sql.eml.ml
@@ -25,7 +25,8 @@ let render comments request =
 %   comments |> List.iter (fun (_id, comment) ->
       <p><%s comment %></p><% ); %>
 
-    <%s! Dream.form_tag ~action:"/" request %>
+    <form action="/" method="post">
+      <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
 
diff --git a/example/w-flash/README.md b/example/w-flash/README.md
index 515a547d..d25a1f0d 100644
--- a/example/w-flash/README.md
+++ b/example/w-flash/README.md
@@ -13,7 +13,8 @@ absolutely primitive form with just one field:
 let form request =
   <html>
   <body>
-    <%s! Dream.form_tag ~action:"/" request %>
+    <form action="/" method="post">
+      <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
   </body>
diff --git a/example/w-flash/flash.eml.ml b/example/w-flash/flash.eml.ml
index 1b9cd121..8bba6415 100644
--- a/example/w-flash/flash.eml.ml
+++ b/example/w-flash/flash.eml.ml
@@ -1,7 +1,8 @@
 let form request =
   <html>
   <body>
-    <%s! Dream.form_tag ~action:"/" request %>
+    <form action="/" method="post">
+      <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
   </body>
diff --git a/example/w-multipart-dump/multipart_dump.eml.ml b/example/w-multipart-dump/multipart_dump.eml.ml
index 6521436c..879112fe 100644
--- a/example/w-multipart-dump/multipart_dump.eml.ml
+++ b/example/w-multipart-dump/multipart_dump.eml.ml
@@ -1,7 +1,8 @@
 let home request =
   <html>
   <body>
-    <%s! Dream.form_tag ~action:"/" ~enctype:`Multipart_form_data request %>
+    <form action="/" method="post" enctype="multipart/form-data">
+      <%s! Dream.csrf_tag request %>
       <input name="text"><br>
       <input name="files" type="file" multiple><br>
       <button>Submit!</button>
diff --git a/example/w-postgres/postgres.eml.ml b/example/w-postgres/postgres.eml.ml
index 52ecd53c..b7d3b037 100644
--- a/example/w-postgres/postgres.eml.ml
+++ b/example/w-postgres/postgres.eml.ml
@@ -25,7 +25,8 @@ let render comments request =
 %   comments |> List.iter (fun (_id, comment) ->
       <p><%s comment %></p><% ); %>
 
-    <%s! Dream.form_tag ~action:"/" request %>
+    <form action="/" method="post">
+      <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
 
diff --git a/example/w-upload-stream/README.md b/example/w-upload-stream/README.md
index ac03a22d..9105ec1c 100644
--- a/example/w-upload-stream/README.md
+++ b/example/w-upload-stream/README.md
@@ -11,7 +11,8 @@ the total size of each uploaded file:
 let home request =
   <html>
   <body>
-    <%s! Dream.form_tag ~action:"/" ~enctype:`Multipart_form_data request %>
+    <form action="/" enctype="multipart/form-data" method="post">
+      <%s! Dream.csrf_tag request %>
       <input name="files" type="file" multiple>
       <button>Submit!</button>
     </form>
@@ -70,7 +71,7 @@ Try it in the [playground](http://dream.as/w-upload-stream).
 
 The report page shows one file without a name ("None"). This is, in fact, the
 CSRF token generated by
-[`Dream.form_tag`](https://aantron.github.io/dream/#val-form_tag) inside the
+[`Dream.csrf_tag`](https://aantron.github.io/dream/#val-csrf_tag) inside the
 template. To keep the example simple, we didn't check the CSRF token, nor filter
 out the `dream.csrf` field that it appears in. If you'd like to do so in your
 code, see
diff --git a/example/w-upload-stream/upload_stream.eml.ml b/example/w-upload-stream/upload_stream.eml.ml
index 743f5960..a0e35d7e 100644
--- a/example/w-upload-stream/upload_stream.eml.ml
+++ b/example/w-upload-stream/upload_stream.eml.ml
@@ -1,7 +1,8 @@
 let home request =
   <html>
   <body>
-    <%s! Dream.form_tag ~action:"/" ~enctype:`Multipart_form_data request %>
+    <form action="/" enctype="multipart/form-data" method="post">
+      <%s! Dream.csrf_tag request %>
       <input name="files" type="file" multiple>
       <button>Submit!</button>
     </form>
diff --git a/src/dream.ml b/src/dream.ml
index 426a64cc..b5525c90 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -195,6 +195,7 @@ let verify_csrf_token = Csrf.verify_csrf_token ~now
 let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
   Tag.form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
 
+let csrf_tag = Tag.csrf_tag ~now
 
 
 (* Middleware *)
diff --git a/src/dream.mli b/src/dream.mli
index 504853ba..ed7a6e87 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -910,12 +910,13 @@ val origin_referrer_check : middleware
 
 (** {1 Forms}
 
-    {!Dream.form_tag} and {!Dream.val-form} round-trip secure forms.
-    {!Dream.form_tag} is used inside a template to generate a form header with a
-    CSRF token:
+    {!Dream.csrf_tag} and {!Dream.val-form} round-trip secure forms.
+    {!Dream.csrf_tag} is used inside a form template to generate a hidden field
+    with a CSRF token:
 
     {[
-      <%s! Dream.form_tag ~action:"/" request %>
+      <form action="/" method="post">
+        <%s! Dream.csrf_tag request %>
         <input name="my.field">
       </form>
     ]}
@@ -956,13 +957,13 @@ type 'a form_result = [
 
 val form : ?csrf:bool -> request -> (string * string) list form_result promise
 (** Parses the request body as a form. Performs CSRF checks. Use
-    {!Dream.form_tag} in a template to transparently generate forms that will
-    pass these checks. See {!section-templates} and example
+    {!Dream.csrf_tag} in a form template to transparently generate forms that
+    will pass these checks. See {!section-templates} and example
     {{:https://github.com/aantron/dream/tree/master/example/d-form#readme}
     [d-form]}.
 
     - [Content-Type:] must be [application/x-www-form-urlencoded].
-    - The form must have a field named [dream.csrf]. {!Dream.form_tag} adds such
+    - The form must have a field named [dream.csrf]. {!Dream.csrf_tag} adds such
       a field.
     - {!Dream.form} calls {!Dream.verify_csrf_token} to check the token in
       [dream.csrf].
@@ -1047,15 +1048,14 @@ type multipart_form =
 
 val multipart : ?csrf:bool -> request -> multipart_form form_result promise
 (** Like {!Dream.form}, but also reads files, and [Content-Type:] must be
-    [multipart/form-data]. The [<form>] tag and CSRF token can be generated in a
-    template with
+    [multipart/form-data]. The CSRF token can be generated in a template with
 
     {[
-      <%s! Dream.form_tag ~action:"/"
-             ~enctype:`Multipart_form_data request %>
+      <form action="/" method="post" enctype="multipart/form-data">
+        <%s! Dream.csrf_tag request %>
     ]}
 
-    See {!Dream.form_tag}, section {!section-templates}, and example
+    See section {!section-templates}, and example
     {{:https://github.com/aantron/dream/tree/master/example/g-upload#files}
     [g-upload]}.
 
@@ -1090,7 +1090,7 @@ val upload : request -> part option promise
     {!Dream.upload} does not verify a CSRF token. There are several ways to add
     CSRF protection for an upload stream, including:
 
-    - Generate the form with {!Dream.form_tag}. Check for
+    - Generate a CSRF token with {!Dream.csrf_tag}. Check for
       [`Field ("dream.csrf", token)] during upload and call
       {!Dream.verify_csrf_token}.
     - Use {{:https://developer.mozilla.org/en-US/docs/Web/API/FormData}
@@ -1104,8 +1104,9 @@ val upload_part : request -> string option promise
 
     It's usually not necessary to handle CSRF tokens directly.
 
-    - Form tag generator {!Dream.form_tag} generates and inserts a CSRF token
-      that {!Dream.val-form} and {!Dream.val-multipart} transparently verify.
+    - CSRF token field generator {!Dream.csrf_tag} generates and inserts a CSRF
+      token that {!Dream.val-form} and {!Dream.val-multipart} transparently
+      verify.
     - AJAX can be protected from CSRF by {!Dream.origin_referrer_check}.
 
     CSRF functions are exposed for creating custom schemes, and for
@@ -1228,6 +1229,29 @@ let render message =
     unquoted attribute values, CSS in [<style>] tags, or literal JavaScript in
     [<script>] tags. *)
 
+val csrf_tag : request -> string
+(** Generates an [<input>] tag with a CSRF token, suitable for use with
+    {!Dream.val-form} and {!Dream.val-multipart}. For example, in a template,
+
+    {[
+      <form method="post" action="/">
+        <%s! Dream.csrf_tag request %>
+        <input name="my.field">
+      </form>
+    ]}
+
+    expands to
+
+    {[
+      <form method="post" action="/">
+        <input name="dream.csrf" type="hidden" value="a-token">
+        <input name="my.field">
+      </form>
+    ]}
+
+    It is recommended to put the CSRF tag immediately after the starting
+    [<form>] tag, to prevent certain kinds of DOM manipulation-based attacks. *)
+
 val form_tag :
   ?method_:[< method_ ] ->
   ?target:string ->
diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 003abcc0..1976a8ca 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -122,17 +122,17 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
   include Dream__middleware.Log
   include Dream__middleware.Log.Make (Pclock)
   include Dream__middleware.Echo
-  
+
   let default_log =
     Dream__middleware.Log.sub_log (Logs.Src.name Logs.default)
-  
+
   let error = default_log.error
   let warning = default_log.warning
   let info = default_log.info
   let debug = default_log.debug
-  
+
   include Dream__middleware.Router
-  
+
   include Dream__middleware.Session
   include Dream__middleware.Session.Make (Pclock)
 
@@ -140,10 +140,10 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
   include Dream__middleware.Form
   include Dream__middleware.Upload
   include Dream__middleware.Csrf
-  
+
   let content_length =
     Dream__middleware.Content_length.content_length
-  
+
   include Dream__middleware.Lowercase_headers
   include Dream__middleware.Catch
   include Dream__middleware.Request_id
@@ -168,8 +168,9 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
   let multipart = multipart ~now
   let csrf_token = csrf_token ~now
   let verify_csrf_token = verify_csrf_token ~now
+  let csrf_tag = csrf_tag ~now
   let form_tag = form_tag ~now
-  
+
   include Dream__pure.Formats
 
   include Paf_mirage.Make (Time) (Stack)
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index 658a6215..84d4d2f3 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -140,6 +140,8 @@ module Make
   val form : ?csrf:bool -> request -> (string * string) list form_result Lwt.t
   val multipart : ?csrf:bool -> request -> multipart_form form_result Lwt.t
 
+  val csrf_tag : request -> string
+
   val form_tag :
     ?method_:method_ ->
     ?target:string ->
diff --git a/src/server/tag.eml.ml b/src/server/tag.eml.ml
index afb9589a..f22a4e2b 100644
--- a/src/server/tag.eml.ml
+++ b/src/server/tag.eml.ml
@@ -16,6 +16,9 @@ end
 module Method = Dream_pure.Method
 
 
+let csrf_tag ~now request =
+  let token = Csrf.csrf_token ~now request in
+  <input name="<%s! Csrf.field_name %>" type="hidden" value="<%s! token %>">
 
 (* TODO Include the path prefix. *)
 let form_tag
@@ -45,6 +48,5 @@ let form_tag
     method="<%s! method_ %>"
     action="<%s action %>"<%s! target %><%s! enctype %>>
 % if csrf_token then begin
-%   let token = Csrf.csrf_token ~now request in
-    <input name="<%s! Csrf.field_name %>" type="hidden" value="<%s! token %>">
+    <%s! csrf_tag ~now request %>
 % end;

From c7fb937a64779ad01b3c20e1ee124a85ee3e0cb1 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 8 Feb 2022 12:53:24 +0300
Subject: [PATCH 139/312] Don't reuse response streams for WebSockets

WebSockets should have their own pair of streams. That way, middlewares
that transform response bodies can transparently work on WebSocket
responses, without accidentally transforming WebSocket messages.
---
 src/dream.ml          |  2 +-
 src/http/http.ml      | 17 ++++++---------
 src/pure/message.ml   | 24 ++++++++++++++++++++
 src/pure/message.mli  |  8 +++++++
 src/server/helpers.ml | 51 ++++++++++++++++++++++++++-----------------
 5 files changed, 71 insertions(+), 31 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index b5525c90..77228a46 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -152,7 +152,7 @@ let set_body = Message.set_body
 let read = Helpers.read
 let write = Helpers.write
 let flush = Helpers.flush
-let close = Message.close
+let close = Helpers.close
 type buffer = Stream.buffer
 type stream = Stream.stream
 let client_stream = Message.client_stream
diff --git a/src/http/http.ml b/src/http/http.ml
index 2836da65..6b91da3a 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -146,17 +146,17 @@ let wrap_handler
           Lwt.return_unit
         in
 
-        if not (Helpers.is_websocket response) then
+        match Message.get_websocket response with
+        | None ->
           forward_response response
-        else begin
+        | Some (client_stream, _server_stream) ->
           let error_handler =
             Error_handler.websocket user's_error_handler request response in
 
           let proceed () =
             Websocketaf.Server_connection.create_websocket
               ~error_handler
-              (Dream_httpaf.Websocket.websocket_handler
-                (Message.client_stream response))
+              (Dream_httpaf.Websocket.websocket_handler client_stream)
             |> Gluten.make (module Websocketaf.Server_connection)
             |> upgrade
           in
@@ -173,8 +173,6 @@ let wrap_handler
                 user's_error_handler request response error_string
             in
             forward_response response
-        end
-
       end
       @@ fun exn ->
         (* TODO There was something in the fork changelogs about not requiring
@@ -262,16 +260,15 @@ let wrap_handler_h2
           Lwt.return_unit
         in
 
-        if not (Helpers.is_websocket response) then
+        match Message.get_websocket response with
+        | None ->
           forward_response response
-
+        | Some _ ->
         (* TODO DOC H2 appears not to support WebSocket upgrade at present.
            RFC 8441. *)
         (* TODO DOC Do we need a CONNECT method? Do users need to be informed of
            this? *)
-        else
           Lwt.return_unit
-
       end
       @@ fun exn ->
         (* TODO LATER There was something in the fork changelogs about not
diff --git a/src/pure/message.ml b/src/pure/message.ml
index cd08da95..4d03f484 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -305,3 +305,27 @@ let set_body message body =
   match message.kind with
   | Request -> message.server_stream <- Stream.string body
   | Response -> message.client_stream <- Stream.string body
+
+
+
+(* TODO Once the higher-level WebSocket API is settled, no longer store the
+   server stream. *)
+let websocket_field =
+  new_field ~name:"dream.websocket" ()
+
+let create_websocket response =
+  let in_reader, in_writer = Stream.pipe ()
+  and out_reader, out_writer = Stream.pipe () in
+  let client_stream = Stream.stream out_reader in_writer
+  and server_stream = Stream.stream in_reader out_writer in
+  set_field response websocket_field (client_stream, server_stream);
+  server_stream
+
+let get_websocket response =
+  field response websocket_field
+
+let set_websocket_client_stream response stream =
+  match get_websocket response with
+  | None -> raise (Failure "not a WebSocket")
+  | Some (_client_stream, server_stream) ->
+    set_field response websocket_field (stream, server_stream)
diff --git a/src/pure/message.mli b/src/pure/message.mli
index e7dbeb53..f96aac86 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -77,6 +77,14 @@ val set_server_stream : 'a message -> Stream.stream -> unit
 
 
 
+(* TODO Once the outer WebSocket I/O API is figured out, it should be possible
+   to replace 'a message by response more specifically. *)
+val create_websocket : 'a message -> Stream.stream
+val get_websocket : 'a message -> (Stream.stream * Stream.stream) option
+val set_websocket_client_stream : 'a message -> Stream.stream -> unit
+
+
+
 val no_middleware : middleware
 val pipeline : middleware list -> middleware
 
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index ea38ebec..fcc677b1 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -103,27 +103,16 @@ let stream ?status ?code ?headers callback =
   Lwt.async (fun () -> callback response);
   Lwt.return response
 
-let websocket_field =
-  Message.new_field
-    ~name:"dream.websocket"
-    ~show_value:(Printf.sprintf "%b")
-    ()
-
-let is_websocket response =
-  match Message.field response websocket_field with
-  | Some true -> true
-  | _ -> false
-
 (* TODO Mark the request as a WebSocket request for HTTP. *)
 let websocket ?headers callback =
-  let in_reader, in_writer = Stream.pipe ()
-  and out_reader, out_writer = Stream.pipe () in
-  let client_stream = Stream.stream out_reader in_writer
-  and server_stream = Stream.stream in_reader out_writer in
   let response =
     Message.response
-      ~status:`Switching_Protocols ?headers client_stream server_stream in
-  Message.set_field response websocket_field true;
+      ~status:`Switching_Protocols ?headers Stream.empty Stream.null in
+  let server_stream = Message.create_websocket response in
+  (* TODO Figure out what should actually be returned to the client and/or
+     provided to the callback. Probably the server stream. The surface API for
+     WebSockets also needs to be designed. *)
+  ignore server_stream;
   (* TODO Make sure the request id is propagated to the callback. *)
   (* TODO Close the WwbSocket on leaked exceptions, etc. *)
   Lwt.async (fun () -> callback response);
@@ -137,11 +126,33 @@ let not_found _ =
 
 
 
+(* TODO Once the WebSocket API exists, these functions should not check whether
+   the message has a WebSocket. *)
 let read message =
-  Message.read (Message.server_stream message)
+  match Message.get_websocket message with
+  | None ->
+    Message.read (Message.server_stream message)
+  | Some (_client_stream, server_stream) ->
+    Message.read server_stream
 
 let write ?kind message chunk =
-  Message.write ?kind (Message.server_stream message) chunk
+  match Message.get_websocket message with
+  | None ->
+    Message.write ?kind (Message.server_stream message) chunk
+  | Some (_client_stream, server_stream) ->
+    Message.write ?kind server_stream chunk
 
 let flush message =
-  Message.flush (Message.server_stream message)
+  match Message.get_websocket message with
+  | None ->
+    Message.flush (Message.server_stream message)
+  | Some (_client_stream, server_stream) ->
+    Message.flush server_stream
+
+let close ?(code = 1000) message =
+  match Message.get_websocket message with
+  | None ->
+    Message.close message
+  | Some (_client_stream, server_stream) ->
+    Stream.close server_stream code;
+    Lwt.return_unit

From f82a51b0d55aab2fb466fd63d8ee9872a24d6d6b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 8 Feb 2022 13:23:17 +0300
Subject: [PATCH 140/312] Use stream type at higher levels of the API

---
 src/dream.ml           | 33 ++++++++++++++++++++---------
 src/dream.mli          | 17 +++++++++------
 src/graphql/graphql.ml | 48 +++++++++++++++++++++---------------------
 src/pure/message.ml    |  4 ++--
 src/pure/message.mli   |  2 +-
 src/server/helpers.ml  | 41 ++----------------------------------
 src/server/upload.ml   |  8 +++++--
 7 files changed, 68 insertions(+), 85 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index 77228a46..ad41fc6e 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -79,6 +79,8 @@ type client = Message.client
 type server = Message.server
 type 'a promise = 'a Message.promise
 
+type stream = Stream.stream
+
 
 
 (* Methods *)
@@ -149,12 +151,16 @@ let all_cookies = Cookie.all_cookies
 
 let body = Message.body
 let set_body = Message.set_body
-let read = Helpers.read
-let write = Helpers.write
-let flush = Helpers.flush
-let close = Helpers.close
+
+
+
+(* Streaming I/O *)
+
+let read = Message.read
+let write = Message.write
+let flush = Message.flush
+let close = Message.close
 type buffer = Stream.buffer
-type stream = Stream.stream
 let client_stream = Message.client_stream
 let server_stream = Message.server_stream
 let set_client_stream = Message.set_client_stream
@@ -414,12 +420,19 @@ let write_buffer ?(offset = 0) ?length message chunk =
     | None -> Bigstringaf.length chunk - offset
   in
   let string = Bigstringaf.substring chunk ~off:offset ~len:length in
-  write ~kind:`Binary message string
+  write ~kind:`Binary (Message.server_stream message) string
+
+type websocket =
+  Message.response
+
+let send ?kind response chunk =
+  write ?kind (Message.server_stream response) chunk
+
+let receive response =
+  read (Message.server_stream response)
 
-type websocket = Message.response
-let send = write
-let receive = read
-let close_websocket = close
+let close_websocket ?code response =
+  close ?code (Message.server_stream response)
 
 type 'a local = 'a Message.field
 let new_local = Message.new_field
diff --git a/src/dream.mli b/src/dream.mli
index ed7a6e87..d1a75507 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -132,6 +132,9 @@ and 'a promise = 'a Lwt.t
     exception backtrace — though, in most cases, you should still extend it with
     [raise] and [let%lwt], instead. *)
 
+type stream
+(* TODO Document. *)
+
 
 
 (** {1 Methods} *)
@@ -522,7 +525,7 @@ val stream :
   ?status:[< status ] ->
   ?code:int ->
   ?headers:(string * string) list ->
-    (response -> unit promise) -> response promise
+    (stream -> unit promise) -> response promise
 (** Same as {!Dream.val-respond}, but calls {!Dream.set_stream} internally to
     prepare the response for stream writing, and then runs the callback
     asynchronously to do it. See example
@@ -538,7 +541,7 @@ val stream :
 
 val websocket :
   ?headers:(string * string) list ->
-    (response -> unit promise) -> response promise
+    (stream -> unit promise) -> response promise
 (** Creates a fresh [101 Switching Protocols] response. Once this response is
     returned to Dream's HTTP layer, the callback is passed a new
     {!type-websocket}, and the application can begin using it. See example
@@ -763,8 +766,9 @@ https://aantron.github.io/dream/#val-set_body
 (**/**)
 
 (** {2 Streaming} *)
+(* TODO Should probably be promoted to its own section. *)
 
-val read : 'a message -> string option promise
+val read : stream -> string option promise
 (** Retrieves a body chunk. The chunk is not buffered, thus it can only be read
     once. See example
     {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
@@ -780,15 +784,15 @@ https://aantron.github.io/dream/#val-set_stream
 "]
 (**/**)
 
-val write : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
+val write : ?kind:[< `Text | `Binary ] -> stream -> string -> unit promise
 (** Streams out the string. The promise is fulfilled when the response can
     accept more writes. *)
 (* TODO Document clearly which of the writing functions can raise exceptions. *)
 
-val flush : response -> unit promise
+val flush : stream -> unit promise
 (** Flushes write buffers. Data is sent to the client. *)
 
-val close : ?code:int -> 'a message -> unit promise
+val close : ?code:int -> stream -> unit promise
 (** Finishes the response stream. *)
 (* TODO Fix comment. *)
 
@@ -811,7 +815,6 @@ type buffer =
 (* TODO Remove old functions from signature. *)
 (* TODO Should there be a section for this somewhere? Probably "low-level
    streaming" should be promoted to a top-level section, Streaming. *)
-type stream
 
 val client_stream : 'a message -> stream
 val server_stream : 'a message -> stream
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index 73c93b99..964a9846 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -78,8 +78,8 @@ let run_query make_context schema request json =
 let operation_id json =
   Yojson.Basic.Util.(json |> member "id" |> to_string_option)
 
-let close_and_clean ?code subscriptions response =
-  let%lwt () = Message.close ?code response in
+let close_and_clean ?code subscriptions websocket =
+  let%lwt () = Message.close ?code websocket in
   Hashtbl.iter (fun _ close -> close ()) subscriptions;
   Lwt.return_unit
 
@@ -114,12 +114,12 @@ let complete_message id =
 
 (* TODO Take care to pass around the request Lwt.key in async, etc. *)
 (* TODO Test client complete racing against a stream. *)
-let handle_over_websocket make_context schema subscriptions request response =
+let handle_over_websocket make_context schema subscriptions request (websocket : Stream.stream) =
   let rec loop inited =
-    match%lwt Helpers.read response with
+    match%lwt Message.read websocket with
     | None ->
       log.info (fun log -> log ~request "GraphQL WebSocket closed by client");
-      close_and_clean subscriptions response
+      close_and_clean subscriptions websocket
     | Some message ->
 
     log.debug (fun log -> log ~request "Message '%s'" message);
@@ -128,13 +128,13 @@ let handle_over_websocket make_context schema subscriptions request response =
     match Yojson.Basic.from_string message with
     | exception _ ->
       log.warning (fun log -> log ~request "GraphQL message is not JSON");
-      close_and_clean subscriptions response ~code:4400
+      close_and_clean subscriptions websocket ~code:4400
     | json ->
 
     match Yojson.Basic.Util.(json |> member "type" |> to_string_option) with
     | None ->
       log.warning (fun log -> log ~request "GraphQL message lacks a type");
-      close_and_clean subscriptions response ~code:4400
+      close_and_clean subscriptions websocket ~code:4400
     | Some message_type ->
 
     match message_type with
@@ -142,24 +142,24 @@ let handle_over_websocket make_context schema subscriptions request response =
     | "connection_init" ->
       if inited then begin
         log.warning (fun log -> log ~request "Duplicate connection_init");
-        close_and_clean subscriptions response ~code:4429
+        close_and_clean subscriptions websocket ~code:4429
       end
       else begin
-        let%lwt () = Helpers.write response ack_message in
+        let%lwt () = Message.write websocket ack_message in
         loop true
       end
 
     | "complete" ->
       if not inited then begin
         log.warning (fun log -> log ~request "complete before connection_init");
-        close_and_clean subscriptions response ~code:4401
+        close_and_clean subscriptions websocket ~code:4401
       end
       else begin
         match operation_id json with
         | None ->
           log.warning (fun log ->
             log ~request "client complete: operation id missing");
-          close_and_clean subscriptions response ~code:4400
+          close_and_clean subscriptions websocket ~code:4400
         | Some id ->
           begin match Hashtbl.find_opt subscriptions id with
           | None -> ()
@@ -172,14 +172,14 @@ let handle_over_websocket make_context schema subscriptions request response =
       if not inited then begin
         log.warning (fun log ->
           log ~request "subscribe before connection_init");
-        close_and_clean subscriptions response ~code:4401
+        close_and_clean subscriptions websocket ~code:4401
       end
       else begin
         match operation_id json with
         | None ->
           log.warning (fun log ->
             log ~request "subscribe: operation id missing");
-          close_and_clean subscriptions response ~code:4400
+          close_and_clean subscriptions websocket ~code:4400
         | Some id ->
 
         let payload = json |> Yojson.Basic.Util.member "payload" in
@@ -193,13 +193,13 @@ let handle_over_websocket make_context schema subscriptions request response =
               log.warning (fun log ->
                 log ~request
                   "subscribe: error %s" (Yojson.Basic.to_string json));
-              Helpers.write response (error_message id json)
+              Message.write websocket (error_message id json)
 
             (* It's not clear that this case ever occurs, because graphql-ws is
                only used for subscriptions, at the protocol level. *)
             | Ok (`Response json) ->
-              let%lwt () = Helpers.write response (data_message id json) in
-              let%lwt () = Helpers.write response (complete_message id) in
+              let%lwt () = Message.write websocket (data_message id json) in
+              let%lwt () = Message.write websocket (complete_message id) in
               Lwt.return_unit
 
             | Ok (`Stream (stream, close)) ->
@@ -207,7 +207,7 @@ let handle_over_websocket make_context schema subscriptions request response =
               | true ->
                 log.warning (fun log ->
                   log ~request "subscribe: duplicate operation id");
-                close_and_clean subscriptions response ~code:4409
+                close_and_clean subscriptions websocket ~code:4409
               | false ->
 
               Hashtbl.replace subscriptions id close;
@@ -216,15 +216,15 @@ let handle_over_websocket make_context schema subscriptions request response =
               let%lwt () =
                 stream |> Lwt_stream.iter_s (function
                   | Ok json ->
-                    Helpers.write response (data_message id json)
+                    Message.write websocket (data_message id json)
                   | Error json ->
                     log.warning (fun log ->
                       log ~request
                         "Subscription: error %s" (Yojson.Basic.to_string json));
-                    Helpers.write response (error_message id json))
+                    Message.write websocket (error_message id json))
               in
 
-              let%lwt () = Helpers.write response (complete_message id) in
+              let%lwt () = Message.write websocket (complete_message id) in
               Hashtbl.remove subscriptions id;
               Lwt.return_unit
 
@@ -240,12 +240,12 @@ let handle_over_websocket make_context schema subscriptions request response =
 
             try%lwt
               let%lwt () =
-                Helpers.write
-                  response
+                Message.write
+                  websocket
                   (error_message id (make_error "Internal Server Error"))
               in
               if !subscribed then
-                Helpers.write response (complete_message id)
+                Message.write websocket (complete_message id)
               else
                 Lwt.return_unit
             with _ ->
@@ -258,7 +258,7 @@ let handle_over_websocket make_context schema subscriptions request response =
     | message_type ->
       log.warning (fun log ->
         log ~request "Unknown WebSocket message type '%s'" message_type);
-      close_and_clean subscriptions response ~code:4400
+      close_and_clean subscriptions websocket ~code:4400
   in
 
   loop false
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 4d03f484..1939b1b3 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -224,8 +224,8 @@ let flush stream =
   promise
 
 (* TODO Should close even be promise-valued? *)
-let close ?(code = 1000) message =
-  Stream.close message.server_stream code;
+let close ?(code = 1000) stream =
+  Stream.close stream code;
   Lwt.return_unit
 
 let client_stream message =
diff --git a/src/pure/message.mli b/src/pure/message.mli
index f96aac86..e44cd7f9 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -69,7 +69,7 @@ val read : Stream.stream -> string option promise
 val write :
   ?kind:[< `Text | `Binary ] -> Stream.stream -> string -> unit promise
 val flush : Stream.stream -> unit promise
-val close : ?code:int -> 'a message -> unit promise
+val close : ?code:int -> Stream.stream -> unit promise
 val client_stream : 'a message -> Stream.stream
 val server_stream : 'a message -> Stream.stream
 val set_client_stream : 'a message -> Stream.stream -> unit
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index fcc677b1..37038674 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -100,7 +100,7 @@ let stream ?status ?code ?headers callback =
     Message.response ?status ?code ?headers client_stream server_stream in
   (* TODO Should set up an error handler for this. YES. *)
   (* TODO Make sure the request id is propagated to the callback. *)
-  Lwt.async (fun () -> callback response);
+  Lwt.async (fun () -> callback server_stream);
   Lwt.return response
 
 (* TODO Mark the request as a WebSocket request for HTTP. *)
@@ -109,13 +109,9 @@ let websocket ?headers callback =
     Message.response
       ~status:`Switching_Protocols ?headers Stream.empty Stream.null in
   let server_stream = Message.create_websocket response in
-  (* TODO Figure out what should actually be returned to the client and/or
-     provided to the callback. Probably the server stream. The surface API for
-     WebSockets also needs to be designed. *)
-  ignore server_stream;
   (* TODO Make sure the request id is propagated to the callback. *)
   (* TODO Close the WwbSocket on leaked exceptions, etc. *)
-  Lwt.async (fun () -> callback response);
+  Lwt.async (fun () -> callback server_stream);
   Lwt.return response
 
 let empty ?headers status =
@@ -123,36 +119,3 @@ let empty ?headers status =
 
 let not_found _ =
   respond ~status:`Not_Found ""
-
-
-
-(* TODO Once the WebSocket API exists, these functions should not check whether
-   the message has a WebSocket. *)
-let read message =
-  match Message.get_websocket message with
-  | None ->
-    Message.read (Message.server_stream message)
-  | Some (_client_stream, server_stream) ->
-    Message.read server_stream
-
-let write ?kind message chunk =
-  match Message.get_websocket message with
-  | None ->
-    Message.write ?kind (Message.server_stream message) chunk
-  | Some (_client_stream, server_stream) ->
-    Message.write ?kind server_stream chunk
-
-let flush message =
-  match Message.get_websocket message with
-  | None ->
-    Message.flush (Message.server_stream message)
-  | Some (_client_stream, server_stream) ->
-    Message.flush server_stream
-
-let close ?(code = 1000) message =
-  match Message.get_websocket message with
-  | None ->
-    Message.close message
-  | Some (_client_stream, server_stream) ->
-    Stream.close server_stream code;
-    Lwt.return_unit
diff --git a/src/server/upload.ml b/src/server/upload.ml
index 886ed1fe..e296c8ee 100644
--- a/src/server/upload.ml
+++ b/src/server/upload.ml
@@ -115,7 +115,9 @@ and upload (request : Message.request) =
       failwith message
 
     | Some content_type ->
-      let body = Lwt_stream.from (fun () -> Helpers.read request) in
+      let body =
+        Lwt_stream.from (fun () ->
+          Message.read (Message.server_stream request)) in
       let `Parse th, stream =
         Multipart_form_lwt.stream ~identify body content_type in
       Lwt.async (fun () -> let%lwt _ = th in Lwt.return_unit);
@@ -135,7 +137,9 @@ let multipart ?(csrf=true) ~now request =
   match content_type with
   | None -> Lwt.return `Wrong_content_type
   | Some content_type ->
-    let body = Lwt_stream.from (fun () -> Helpers.read request) in
+    let body =
+      Lwt_stream.from (fun () ->
+        Message.read (Message.server_stream request)) in
     match%lwt Multipart_form_lwt.of_stream_to_list body content_type with
     | Error (`Msg _err) ->
       Lwt.return `Wrong_content_type (* XXX(dinosaure): better error? *)

From e533e7039747b0c596c87f39c9cc7ae523739a68 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 8 Feb 2022 21:19:27 +0300
Subject: [PATCH 141/312] Move websocket/af type inequality workaround

See https://github.com/anmonteiro/websocketaf/issues/39.
---
 src/http/shared/websocket.ml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/http/shared/websocket.ml b/src/http/shared/websocket.ml
index 6c972ce0..d4434844 100644
--- a/src/http/shared/websocket.ml
+++ b/src/http/shared/websocket.ml
@@ -236,3 +236,11 @@ let websocket_handler stream socket =
   outgoing_loop ();
 
   Websocketaf.Server_connection.{frame; eof}
+
+  (* TODO The equality between server and client input handlers is not
+     exposed in the websocketaf API.
+     https://github.com/anmonteiro/websocketaf/issues/39. *)
+let client_websocket_handler :
+    Stream.stream -> Websocketaf.Wsd.t ->
+      Websocketaf.Client_connection.input_handlers =
+  Obj.magic websocket_handler

From 11243faf70b4ead8c093c05f0f7463c6c10a3f55 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 9 Feb 2022 18:05:06 +0300
Subject: [PATCH 142/312] README: refresh Discord invites

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index c0d59267..3e7d7e69 100644
--- a/README.md
+++ b/README.md
@@ -224,8 +224,8 @@ Most of the examples are loaded into the [playground][playground]. For instance,
 Apart from the [issues](https://github.com/aantron/dream/issues), good places
 to discuss Dream are...
 
-- #dream on the [Reason Discord](https://discord.gg/YCTDuzbg).
-- #webdev on the [OCaml Discord](https://discord.gg/DyhPFYGr)
+- #dream on the [Reason Discord](https://discord.gg/2JTYRq2rYh).
+- #webdev on the [OCaml Discord](https://discord.gg/sx45hPkkWV)
 - The [OCaml Discuss forum](https://discuss.ocaml.org/).
 
 Highlight `@antron` to poke @aantron specifically.

From ff9639dfaf0da35777b8198f7a6360b1ef57f2ea Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 06:31:51 +0300
Subject: [PATCH 143/312] Fix CI

---
 .github/workflows/test.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c12dfebc..cfd39a91 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -35,7 +35,7 @@ jobs:
     - run: opam depext --yes conf-libev
     # Needed until https://github.com/reasonml/reason/pull/2660 is in opam.
     - run: opam pin add reason --yes --no-action --dev-repo
-    - run: opam install --yes --deps-only --with-test ./dream.opam
+    - run: opam install --yes --deps-only --with-test ./dream-pure.opam ./dream-httpaf.opam ./dream.opam
     - run: opam exec -- dune runtest
     - run: |
         set -e

From 25c0d1ea390fe9b10008ab4b2801c79acb0a626e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 06:50:12 +0300
Subject: [PATCH 144/312] Catch up Stream tests

---
 src/pure/stream.ml                |  3 +++
 test/expect/pure/stream/stream.ml | 32 ++++++++++++-------------------
 2 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/src/pure/stream.ml b/src/pure/stream.ml
index 8b11b333..72d121db 100644
--- a/src/pure/stream.ml
+++ b/src/pure/stream.ml
@@ -166,6 +166,9 @@ let ping stream buffer offset length ~close ~exn ok =
 let pong stream buffer offset length ~close ~exn ok =
   stream.writer.pong buffer offset length ~close ~exn ok
 
+(* TODO Restore "double write" checks by adding a state showing that a writer
+   is already queued, and add tests for this. This should be done after ping
+   and pong get their separate queues. *)
 type pipe = {
   mutable state : [
     | `Idle
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index bd4a2df0..7768658a 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -182,16 +182,14 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   flush_and_dump stream;
-  (try flush_and_dump stream
-  with Failure _ as exn -> print_endline (Printexc.to_string exn));
-  read_and_dump stream;
   flush_and_dump stream;
+  read_and_dump stream;
   [%expect {|
     checkpoint 1
     read: flush
-    (Failure "stream flush: the previous write has not completed")
     flush: ok
-    read: flush |}]
+    read: flush
+    flush: ok |}]
 
 
 
@@ -206,16 +204,14 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   write_and_dump stream buffer 0 3 false true;
-  (try write_and_dump stream buffer 1 1 true false
-  with Failure _ as exn -> print_endline (Printexc.to_string exn));
+  write_and_dump stream buffer 1 1 true false;
   read_and_dump stream;
-  write_and_dump stream buffer 0 3 true true;
   [%expect {|
     checkpoint 1
     read: data: BINARY=false FIN=true foo
-    (Failure "stream write: the stream is not ready")
     write: ok
-    read: data: BINARY=true FIN=true foo |}]
+    read: data: BINARY=true FIN=false o
+    write: ok |}]
 
 
 
@@ -227,16 +223,14 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   ping_and_dump "foo" stream;
-  (try ping_and_dump "bar" stream
-  with Failure _ as exn -> print_endline (Printexc.to_string exn));
+  ping_and_dump "bar" stream;
   read_and_dump stream;
-  ping_and_dump "baz" stream;
   [%expect {|
     checkpoint 1
     read: ping: foo
-    (Failure "stream ping: the previous write has not completed")
     ping: ok
-    read: ping: baz |}]
+    read: ping: bar
+    ping: ok |}]
 
 
 
@@ -248,16 +242,14 @@ let%expect_test _ =
   read_and_dump stream;
   print_endline "checkpoint 1";
   pong_and_dump "foo" stream;
-  (try pong_and_dump "bar" stream
-  with Failure _ as exn -> print_endline (Printexc.to_string exn));
+  pong_and_dump "bar" stream;
   read_and_dump stream;
-  pong_and_dump "baz" stream;
   [%expect {|
     checkpoint 1
     read: pong: foo
-    (Failure "stream pong: the previous write has not completed")
     pong: ok
-    read: pong: baz |}]
+    read: pong: bar
+    pong: ok |}]
 
 
 

From 618a21dcdccdb2452a0151dd2cff0f9a3c56bdef Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 08:51:11 +0300
Subject: [PATCH 145/312] Clarify Stream and WebSocket APIs

---
 src/dream.ml           |  33 ++++----
 src/dream.mli          | 167 ++++++++++++++++++-----------------------
 src/graphql/graphql.ml |  24 +++---
 src/pure/message.ml    | 117 +++++++++++++++++++++++------
 src/pure/message.mli   |  41 ++++++++--
 src/server/helpers.ml  |  24 ++++--
 6 files changed, 248 insertions(+), 158 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index ad41fc6e..c973a0c2 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -79,8 +79,6 @@ type client = Message.client
 type server = Message.server
 type 'a promise = 'a Message.promise
 
-type stream = Stream.stream
-
 
 
 (* Methods *)
@@ -120,8 +118,6 @@ let html = Helpers.html
 let json = Helpers.json
 let redirect = Helpers.redirect
 let empty = Helpers.empty
-let stream = Helpers.stream
-let websocket = Helpers.websocket
 let status = Message.status
 
 
@@ -154,8 +150,10 @@ let set_body = Message.set_body
 
 
 
-(* Streaming I/O *)
+(* Streams *)
 
+type stream = Stream.stream
+let stream = Helpers.stream
 let read = Message.read
 let write = Message.write
 let flush = Message.flush
@@ -175,6 +173,17 @@ let abort_stream = Stream.abort
 
 
 
+(* WebSockets *)
+
+type websocket = stream * stream
+let websocket = Helpers.websocket
+let send = Helpers.send
+let receive = Helpers.receive
+let receive_fragment = Helpers.receive_fragment
+let close_websocket = Message.close_websocket
+
+
+
 (* JSON *)
 
 let origin_referrer_check = Origin_referrer_check.origin_referrer_check
@@ -420,19 +429,7 @@ let write_buffer ?(offset = 0) ?length message chunk =
     | None -> Bigstringaf.length chunk - offset
   in
   let string = Bigstringaf.substring chunk ~off:offset ~len:length in
-  write ~kind:`Binary (Message.server_stream message) string
-
-type websocket =
-  Message.response
-
-let send ?kind response chunk =
-  write ?kind (Message.server_stream response) chunk
-
-let receive response =
-  read (Message.server_stream response)
-
-let close_websocket ?code response =
-  close ?code (Message.server_stream response)
+  write (Message.server_stream message) string
 
 type 'a local = 'a Message.field
 let new_local = Message.new_field
diff --git a/src/dream.mli b/src/dream.mli
index d1a75507..19aed436 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -132,9 +132,6 @@ and 'a promise = 'a Lwt.t
     exception backtrace — though, in most cases, you should still extend it with
     [raise] and [let%lwt], instead. *)
 
-type stream
-(* TODO Document. *)
-
 
 
 (** {1 Methods} *)
@@ -521,40 +518,6 @@ val empty :
     status -> response promise
 (** Same as {!Dream.val-response} with the empty string for a body. *)
 
-val stream :
-  ?status:[< status ] ->
-  ?code:int ->
-  ?headers:(string * string) list ->
-    (stream -> unit promise) -> response promise
-(** Same as {!Dream.val-respond}, but calls {!Dream.set_stream} internally to
-    prepare the response for stream writing, and then runs the callback
-    asynchronously to do it. See example
-    {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
-    [j-stream]}.
-
-    {[
-      fun request ->
-        Dream.stream (fun response ->
-          let%lwt () = Dream.write response "foo" in
-          Dream.close_stream response)
-    ]} *)
-
-val websocket :
-  ?headers:(string * string) list ->
-    (stream -> unit promise) -> response promise
-(** Creates a fresh [101 Switching Protocols] response. Once this response is
-    returned to Dream's HTTP layer, the callback is passed a new
-    {!type-websocket}, and the application can begin using it. See example
-    {{:https://github.com/aantron/dream/tree/master/example/k-websocket#files}
-    [k-websocket]} \[{{:http://dream.as/k-websocket} playground}\].
-
-    {[
-      let my_handler = fun request ->
-        Dream.websocket (fun websocket ->
-          let%lwt () = Dream.send websocket "Hello, world!" in
-          Dream.close_websocket websocket);
-    ]} *)
-
 val status : response -> status
 (** Response {!type-status}. For example, [`OK]. *)
 
@@ -765,8 +728,30 @@ https://aantron.github.io/dream/#val-set_body
 "]
 (**/**)
 
-(** {2 Streaming} *)
-(* TODO Should probably be promoted to its own section. *)
+
+
+(** {1 Streams} *)
+
+type stream
+(* TODO Document. *)
+
+val stream :
+  ?status:[< status ] ->
+  ?code:int ->
+  ?headers:(string * string) list ->
+    (stream -> unit promise) -> response promise
+(** Same as {!Dream.val-respond}, but calls {!Dream.set_stream} internally to
+    prepare the response for stream writing, and then runs the callback
+    asynchronously to do it. See example
+    {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
+    [j-stream]}.
+
+    {[
+      fun request ->
+        Dream.stream (fun response ->
+          let%lwt () = Dream.write response "foo" in
+          Dream.close_stream response)
+    ]} *)
 
 val read : stream -> string option promise
 (** Retrieves a body chunk. The chunk is not buffered, thus it can only be read
@@ -784,7 +769,7 @@ https://aantron.github.io/dream/#val-set_stream
 "]
 (**/**)
 
-val write : ?kind:[< `Text | `Binary ] -> stream -> string -> unit promise
+val write : stream -> string -> unit promise
 (** Streams out the string. The promise is fulfilled when the response can
     accept more writes. *)
 (* TODO Document clearly which of the writing functions can raise exceptions. *)
@@ -792,7 +777,7 @@ val write : ?kind:[< `Text | `Binary ] -> stream -> string -> unit promise
 val flush : stream -> unit promise
 (** Flushes write buffers. Data is sent to the client. *)
 
-val close : ?code:int -> stream -> unit promise
+val close : stream -> unit promise
 (** Finishes the response stream. *)
 (* TODO Fix comment. *)
 
@@ -873,6 +858,55 @@ https://aantron.github.io/dream/#val-write_stream
 
 
 
+(** {1 WebSockets} *)
+
+type websocket
+(** A WebSocket connection. See {{:https://tools.ietf.org/html/rfc6455} RFC
+    6455} and
+    {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API} MDN}. *)
+
+val websocket :
+  ?headers:(string * string) list ->
+    (websocket -> unit promise) -> response promise
+(** Creates a fresh [101 Switching Protocols] response. Once this response is
+    returned to Dream's HTTP layer, the callback is passed a new
+    {!type-websocket}, and the application can begin using it. See example
+    {{:https://github.com/aantron/dream/tree/master/example/k-websocket#files}
+    [k-websocket]} \[{{:http://dream.as/k-websocket} playground}\].
+
+    {[
+      let my_handler = fun request ->
+        Dream.websocket (fun websocket ->
+          let%lwt () = Dream.send websocket "Hello, world!" in
+          Dream.close_websocket websocket);
+    ]} *)
+
+val send : ?text_or_binary:[ `Text | `Binary ] -> ?end_of_message:[ `End_of_message | `Continues ] -> websocket -> string -> unit promise
+(** Sends a single message. The WebSocket is ready another message when the
+    promise resolves.
+
+    With [~kind:`Text], the default, the message is interpreted as a UTF-8
+    string. The client will receive it transcoded to JavaScript's UTF-16
+    representation.
+
+    With [~kind:`Binary], the message will be received unmodified, as either a
+    [Blob] or an [ArrayBuffer]. See
+    {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/binaryType}
+    MDN, [WebSocket.binaryType]}. *)
+
+val receive : websocket -> string option promise
+(** Retrieves a message. If the WebSocket is closed before a complete message
+    arrives, the result is [None]. *)
+
+val receive_fragment : websocket -> (string * [ `Text | `Binary ] * [ `End_of_message | `Continues ]) option promise
+
+val close_websocket : ?code:int -> websocket -> unit promise
+(** Closes the WebSocket. [~code] is usually not necessary, but is needed for
+    some protocols based on WebSockets. See
+    {{:https://tools.ietf.org/html/rfc6455#section-7.4} RFC 6455 §7.4}. *)
+
+
+
 (** {1 JSON}
 
     Dream presently recommends using
@@ -1596,57 +1630,6 @@ val put_flash : request -> string -> string -> unit
 
 
 
-(**/**)
-type websocket = response
-[@@ocaml.deprecated
-"Use Dream.stream. See
-https://aantron.github.io/dream/#type-stream
-"]
-(** A WebSocket connection. See {{:https://tools.ietf.org/html/rfc6455} RFC
-    6455} and
-    {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API} MDN}. *)
-(**/**)
-
-(**/**)
-val send : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
-[@@ocaml.deprecated
-"Use Dream.write. See
-https://aantron.github.io/dream/#val-write
-"]
-(** Sends a single message. The WebSocket is ready another message when the
-    promise resolves.
-
-    With [~kind:`Text], the default, the message is interpreted as a UTF-8
-    string. The client will receive it transcoded to JavaScript's UTF-16
-    representation.
-
-    With [~kind:`Binary], the message will be received unmodified, as either a
-    [Blob] or an [ArrayBuffer]. See
-    {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/binaryType}
-    MDN, [WebSocket.binaryType]}. *)
-
-val receive : response -> string option promise
-[@@ocaml.deprecated
-"Use Dream.read. See
-https://aantron.github.io/dream/#val-read
-"]
-(** Retrieves a message. If the WebSocket is closed before a complete message
-    arrives, the result is [None]. *)
-(**/**)
-
-(**/**)
-val close_websocket : ?code:int -> response -> unit promise
-[@@ocaml.deprecated
-"Use Dream.close. See
-https://aantron.github.io/dream/#val-close
-"]
-(** Closes the WebSocket. [~code] is usually not necessary, but is needed for
-    some protocols based on WebSockets. See
-    {{:https://tools.ietf.org/html/rfc6455#section-7.4} RFC 6455 §7.4}. *)
-(**/**)
-
-
-
 (** {1 GraphQL}
 
     Dream integrates {{:https://github.com/andreas/ocaml-graphql-server#readme}
diff --git a/src/graphql/graphql.ml b/src/graphql/graphql.ml
index 964a9846..25c548b5 100644
--- a/src/graphql/graphql.ml
+++ b/src/graphql/graphql.ml
@@ -79,7 +79,7 @@ let operation_id json =
   Yojson.Basic.Util.(json |> member "id" |> to_string_option)
 
 let close_and_clean ?code subscriptions websocket =
-  let%lwt () = Message.close ?code websocket in
+  let%lwt () = Message.close_websocket ?code websocket in
   Hashtbl.iter (fun _ close -> close ()) subscriptions;
   Lwt.return_unit
 
@@ -114,9 +114,9 @@ let complete_message id =
 
 (* TODO Take care to pass around the request Lwt.key in async, etc. *)
 (* TODO Test client complete racing against a stream. *)
-let handle_over_websocket make_context schema subscriptions request (websocket : Stream.stream) =
+let handle_over_websocket make_context schema subscriptions request websocket =
   let rec loop inited =
-    match%lwt Message.read websocket with
+    match%lwt Helpers.receive websocket with
     | None ->
       log.info (fun log -> log ~request "GraphQL WebSocket closed by client");
       close_and_clean subscriptions websocket
@@ -145,7 +145,7 @@ let handle_over_websocket make_context schema subscriptions request (websocket :
         close_and_clean subscriptions websocket ~code:4429
       end
       else begin
-        let%lwt () = Message.write websocket ack_message in
+        let%lwt () = Helpers.send websocket ack_message in
         loop true
       end
 
@@ -193,13 +193,13 @@ let handle_over_websocket make_context schema subscriptions request (websocket :
               log.warning (fun log ->
                 log ~request
                   "subscribe: error %s" (Yojson.Basic.to_string json));
-              Message.write websocket (error_message id json)
+              Helpers.send websocket (error_message id json)
 
             (* It's not clear that this case ever occurs, because graphql-ws is
                only used for subscriptions, at the protocol level. *)
             | Ok (`Response json) ->
-              let%lwt () = Message.write websocket (data_message id json) in
-              let%lwt () = Message.write websocket (complete_message id) in
+              let%lwt () = Helpers.send websocket (data_message id json) in
+              let%lwt () = Helpers.send websocket (complete_message id) in
               Lwt.return_unit
 
             | Ok (`Stream (stream, close)) ->
@@ -216,15 +216,15 @@ let handle_over_websocket make_context schema subscriptions request (websocket :
               let%lwt () =
                 stream |> Lwt_stream.iter_s (function
                   | Ok json ->
-                    Message.write websocket (data_message id json)
+                    Helpers.send websocket (data_message id json)
                   | Error json ->
                     log.warning (fun log ->
                       log ~request
                         "Subscription: error %s" (Yojson.Basic.to_string json));
-                    Message.write websocket (error_message id json))
+                    Helpers.send websocket (error_message id json))
               in
 
-              let%lwt () = Message.write websocket (complete_message id) in
+              let%lwt () = Helpers.send websocket (complete_message id) in
               Hashtbl.remove subscriptions id;
               Lwt.return_unit
 
@@ -240,12 +240,12 @@ let handle_over_websocket make_context schema subscriptions request (websocket :
 
             try%lwt
               let%lwt () =
-                Message.write
+                Helpers.send
                   websocket
                   (error_message id (make_error "Internal Server Error"))
               in
               if !subscribed then
-                Message.write websocket (complete_message id)
+                Helpers.send websocket (complete_message id)
               else
                 Lwt.return_unit
             with _ ->
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 1939b1b3..61cd5bbb 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -190,23 +190,13 @@ let sort_headers headers =
 let read stream =
   Stream.read_convenience stream
 
-(* TODO Need to expose FIN. However, it can't have any effect even on
-   WebSockets, because websocket/af does not offer the ability to pass FIN. It
-   is hardcoded to true. *)
-(* TODO Also expose binary/text. What should be the default? *)
-let write ?kind stream chunk =
-  let binary =
-    match kind with
-    | None | Some `Text -> false
-    | Some `Binary -> true
-  in
+let write stream chunk =
   let promise, resolver = Lwt.wait () in
   let length = String.length chunk in
   let buffer = Bigstringaf.of_string ~off:0 ~len:length chunk in
-  (* TODO Better handling of close? But it can't even occur with http/af. *)
   Stream.write
     stream
-    buffer 0 length binary true
+    buffer 0 length false true
     ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
     ~exn:(fun exn -> Lwt.wakeup_later_exn resolver exn)
     (fun () -> Lwt.wakeup_later resolver ());
@@ -224,8 +214,8 @@ let flush stream =
   promise
 
 (* TODO Should close even be promise-valued? *)
-let close ?(code = 1000) stream =
-  Stream.close stream code;
+let close stream =
+  Stream.close stream 1000;
   Lwt.return_unit
 
 let client_stream message =
@@ -318,14 +308,99 @@ let create_websocket response =
   and out_reader, out_writer = Stream.pipe () in
   let client_stream = Stream.stream out_reader in_writer
   and server_stream = Stream.stream in_reader out_writer in
-  set_field response websocket_field (client_stream, server_stream);
-  server_stream
+  let websocket = (client_stream, server_stream) in
+  set_field response websocket_field websocket;
+  websocket
 
 let get_websocket response =
   field response websocket_field
 
-let set_websocket_client_stream response stream =
-  match get_websocket response with
-  | None -> raise (Failure "not a WebSocket")
-  | Some (_client_stream, server_stream) ->
-    set_field response websocket_field (stream, server_stream)
+let close_websocket ?(code = 1000) (client_stream, server_stream) =
+  Stream.close client_stream code;
+  Stream.close server_stream code;
+  Lwt.return_unit
+
+type text_or_binary = [
+  | `Text
+  | `Binary
+]
+
+type end_of_message = [
+  | `End_of_message
+  | `Continues
+]
+
+let receive_fragment stream =
+  let promise, resolver = Lwt.wait () in
+  let close _code = Lwt.wakeup_later resolver None in
+  let abort exn = Lwt.wakeup_later_exn resolver exn in
+
+  let rec loop () =
+    Stream.read stream
+      ~data:(fun buffer offset length binary fin ->
+        let string =
+          Bigstringaf.sub buffer ~off:offset ~len:length
+          |> Bigstringaf.to_string
+        in
+        let text_or_binary = if binary then `Binary else `Text in
+        let end_of_message = if fin then `End_of_message else `Continues in
+        Lwt.wakeup_later
+          resolver (Some (string, text_or_binary, end_of_message)))
+
+      ~flush:loop
+
+      ~ping:(fun buffer offset length ->
+        Stream.pong stream buffer offset length ~close ~exn:abort loop)
+
+      ~pong:(fun _buffer _offset _length ->
+        loop ())
+
+      ~close
+
+      ~exn:abort
+  in
+  loop ();
+
+  promise
+
+(* TODO This can be optimized by using a buffer, and also by immediately
+   returning the first chunk without accumulation if FIN is set on it. *)
+(* TODO Test what happens on end of stream without FIN set. The next read should
+   still gracefully return None. *)
+let receive_full stream =
+  let rec receive_continuations text_or_binary acc =
+    match%lwt receive_fragment stream with
+    | None ->
+      Lwt.return (Some (acc, text_or_binary))
+    | Some (fragment, _, `End_of_message) ->
+      Lwt.return (Some (acc ^ fragment, text_or_binary))
+    | Some (fragment, _, `Continues) ->
+      receive_continuations text_or_binary (acc ^ fragment)
+  in
+  match%lwt receive_fragment stream with
+  | None ->
+    Lwt.return_none
+  | Some (fragment, text_or_binary, `End_of_message) ->
+    Lwt.return (Some (fragment, text_or_binary))
+  | Some (fragment, text_or_binary, `Continues) ->
+    receive_continuations text_or_binary fragment
+
+let receive stream =
+  match%lwt receive_full stream with
+  | None -> Lwt.return_none
+  | Some (message, _) -> Lwt.return (Some message)
+
+let send
+    ?(text_or_binary = `Text) ?(end_of_message = `End_of_message) stream data =
+
+  let promise, resolver = Lwt.wait () in
+  let binary = text_or_binary = `Binary in
+  let fin = end_of_message = `End_of_message in
+  let length = String.length data in
+  let buffer = Bigstringaf.of_string ~off:0 ~len:length data in
+  Stream.write
+    stream buffer 0 length binary fin
+    ~close:(fun _code -> Lwt.wakeup_later_exn resolver End_of_file)
+    ~exn:(fun exn -> Lwt.wakeup_later_exn resolver exn)
+    (fun () -> Lwt.wakeup_later resolver ());
+  promise
diff --git a/src/pure/message.mli b/src/pure/message.mli
index e44cd7f9..e66ee0f0 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -65,11 +65,13 @@ val sort_headers : (string * string) list -> (string * string) list
 
 val body : 'a message -> string promise
 val set_body : 'a message -> string -> unit
+
+
+
 val read : Stream.stream -> string option promise
-val write :
-  ?kind:[< `Text | `Binary ] -> Stream.stream -> string -> unit promise
+val write : Stream.stream -> string -> unit promise
 val flush : Stream.stream -> unit promise
-val close : ?code:int -> Stream.stream -> unit promise
+val close : Stream.stream -> unit promise
 val client_stream : 'a message -> Stream.stream
 val server_stream : 'a message -> Stream.stream
 val set_client_stream : 'a message -> Stream.stream -> unit
@@ -77,11 +79,34 @@ val set_server_stream : 'a message -> Stream.stream -> unit
 
 
 
-(* TODO Once the outer WebSocket I/O API is figured out, it should be possible
-   to replace 'a message by response more specifically. *)
-val create_websocket : 'a message -> Stream.stream
-val get_websocket : 'a message -> (Stream.stream * Stream.stream) option
-val set_websocket_client_stream : 'a message -> Stream.stream -> unit
+(* TODO Is there any reason not to have a separate WebSocket type? Would we want
+   to do anything with a WebSocket that we normally do with responses? The
+   answer is no... It's easier to have a separate type. *)
+val create_websocket : response -> (Stream.stream * Stream.stream)
+val get_websocket : response -> (Stream.stream * Stream.stream) option
+val close_websocket : ?code:int -> Stream.stream * Stream.stream -> unit promise
+
+type text_or_binary = [
+  | `Text
+  | `Binary
+]
+
+type end_of_message = [
+  | `End_of_message
+  | `Continues
+]
+
+(* TODO This also needs message length limits. *)
+val receive :
+  Stream.stream -> string option promise
+val receive_fragment :
+  Stream.stream -> (string * text_or_binary * end_of_message) option promise
+val send :
+  ?text_or_binary:text_or_binary ->
+  ?end_of_message:end_of_message ->
+  Stream.stream ->
+  string ->
+    unit promise
 
 
 
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index 37038674..b327580f 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -103,19 +103,29 @@ let stream ?status ?code ?headers callback =
   Lwt.async (fun () -> callback server_stream);
   Lwt.return response
 
-(* TODO Mark the request as a WebSocket request for HTTP. *)
+let empty ?headers status =
+  respond ?headers ~status ""
+
+let not_found _ =
+  respond ~status:`Not_Found ""
+
+
+
 let websocket ?headers callback =
   let response =
     Message.response
       ~status:`Switching_Protocols ?headers Stream.empty Stream.null in
-  let server_stream = Message.create_websocket response in
+  let websocket = Message.create_websocket response in
   (* TODO Make sure the request id is propagated to the callback. *)
   (* TODO Close the WwbSocket on leaked exceptions, etc. *)
-  Lwt.async (fun () -> callback server_stream);
+  Lwt.async (fun () -> callback websocket);
   Lwt.return response
 
-let empty ?headers status =
-  respond ?headers ~status ""
+let receive (_, server_stream) =
+  Message.receive server_stream
 
-let not_found _ =
-  respond ~status:`Not_Found ""
+let receive_fragment (_, server_stream) =
+  Message.receive_fragment server_stream
+
+let send ?text_or_binary ?end_of_message (_, server_stream) data =
+  Message.send ?text_or_binary ?end_of_message server_stream data

From 2cb98ad0a6e64d30144a2c6aef65140e6d5589fd Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 10:14:41 +0300
Subject: [PATCH 146/312] Catch up the docs build

---
 docs/web/Makefile             |   2 +-
 docs/web/postprocess/index.ml | 126 ++++++++++------------------------
 docs/web/templates/index.html |   2 +-
 src/dream.mli                 |  10 ++-
 4 files changed, 44 insertions(+), 96 deletions(-)

diff --git a/docs/web/Makefile b/docs/web/Makefile
index a32f6f86..6f92fa7d 100644
--- a/docs/web/Makefile
+++ b/docs/web/Makefile
@@ -4,7 +4,7 @@ ODOC := odoc/default/_doc/_html
 .PHONY : build
 build :
 	dune build @doc --root $(ROOT) --no-print-directory --build-dir `pwd`/odoc \
-	  --only-packages dream
+	  --only-packages dream-pure,dream-httpaf,dream
 	rm -f site/index.html
 	dune exec -- postprocess/index.exe \
 	  $(ODOC)/dream/Dream/index.html site/index.html
diff --git a/docs/web/postprocess/index.ml b/docs/web/postprocess/index.ml
index 0ef32806..93f14525 100644
--- a/docs/web/postprocess/index.ml
+++ b/docs/web/postprocess/index.ml
@@ -592,7 +592,7 @@ let val_redirect_replacement = {|
 
 let stream_expected = {|<div class="spec value" id="val-stream">
  <a href="#val-stream" class="anchor"></a><code><span><span class="keyword">val</span> stream : <span>?status:<span>[&lt; <a href="#type-status">status</a> ]</span> <span class="arrow">-&gt;</span></span> <span>?code:int <span class="arrow">-&gt;</span></span> <span>?headers:<span><span>(string * string)</span> list</span> <span class="arrow">-&gt;</span></span>
-<span><span>(<span><a href="#type-response">response</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span>)</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <a href="#type-promise">promise</a></span></span></code>
+<span><span>(<span><a href="#type-stream">stream</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span>)</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <a href="#type-promise">promise</a></span></span></code>
 </div>
 |}
 
@@ -601,7 +601,7 @@ let stream_replacement = {|
   ?status:[&lt; <a href="#type-status">status</a> ] ->
   ?code:int ->
   ?headers:(string * string) list ->
-    (<a href="#type-response">response</a> -> unit <a href="#type-promise">promise</a>) -> <a href="#type-response">response</a> <a href="#type-promise">promise</a>
+    (<a href="#type-stream">stream</a> -> unit <a href="#type-promise">promise</a>) -> <a href="#type-response">response</a> <a href="#type-promise">promise</a>
 </pre>
 |}
 
@@ -618,30 +618,30 @@ let empty_replacement = {|
 |}
 
 let add_header_expected = {|<div class="spec value" id="val-add_header">
- <a href="#val-add_header" class="anchor"></a><code><span><span class="keyword">val</span> add_header : <span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span><span><span class="type-var">'a</span> <a href="#type-message">message</a></span> <span class="arrow">-&gt;</span></span> <span><span class="type-var">'a</span> <a href="#type-message">message</a></span></span></code>
+ <a href="#val-add_header" class="anchor"></a><code><span><span class="keyword">val</span> add_header : <span><span><span class="type-var">'a</span> <a href="#type-message">message</a></span> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> unit</span></code>
 </div>
 |}
 
 let add_header_replacement = {|
 <pre><span class="keyword">val</span> add_header :
-  string -> string -> 'a <a href="#type-message">message</a> -> 'a <a href="#type-message">message</a>
+  'a <a href="#type-message">message</a> -> string -> string -> unit
 |}
 
-let with_header_expected = {|<div class="spec value" id="val-with_header">
- <a href="#val-with_header" class="anchor"></a><code><span><span class="keyword">val</span> with_header : <span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span><span><span class="type-var">'a</span> <a href="#type-message">message</a></span> <span class="arrow">-&gt;</span></span> <span><span class="type-var">'a</span> <a href="#type-message">message</a></span></span></code>
+let set_header_expected = {|<div class="spec value" id="val-set_header">
+ <a href="#val-set_header" class="anchor"></a><code><span><span class="keyword">val</span> set_header : <span><span><span class="type-var">'a</span> <a href="#type-message">message</a></span> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> unit</span></code>
 </div>
 |}
 
-let with_header_replacement = {|
-<pre><span class="keyword">val</span> with_header :
-  string -> string -> 'a <a href="#type-message">message</a> -> 'a <a href="#type-message">message</a>
+let set_header_replacement = {|
+<pre><span class="keyword">val</span> set_header :
+  'a <a href="#type-message">message</a> -> string -> string -> unit
 |}
 
 let add_set_cookie_expected = {|<div class="spec value" id="val-set_cookie">
  <a href="#val-set_cookie" class="anchor"></a><code><span><span class="keyword">val</span> set_cookie : <span>?prefix:<span><span>[&lt; `Host <span>| `Secure</span> ]</span> option</span> <span class="arrow">-&gt;</span></span> <span>?encrypt:bool <span class="arrow">-&gt;</span></span>
 <span>?expires:float <span class="arrow">-&gt;</span></span> <span>?max_age:float <span class="arrow">-&gt;</span></span> <span>?domain:string <span class="arrow">-&gt;</span></span> <span>?path:<span>string option</span> <span class="arrow">-&gt;</span></span>
 <span>?secure:bool <span class="arrow">-&gt;</span></span> <span>?http_only:bool <span class="arrow">-&gt;</span></span> <span>?same_site:<span><span>[&lt; `Strict <span>| `Lax</span> <span>| `None</span> ]</span> option</span> <span class="arrow">-&gt;</span></span>
-<span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <span class="arrow">-&gt;</span></span> <a href="#type-response">response</a></span></code>
+<span><a href="#type-response">response</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> unit</span></code>
 </div>
 |}
 
@@ -656,12 +656,12 @@ let add_set_cookie_replacement = {|
   ?secure:bool ->
   ?http_only:bool ->
   ?same_site:[&lt; `Strict | `Lax | `None ] option -></span>
-    string -> string -> <a href="#type-request">request</a> -> <a href="#type-response">response</a> -> <a href="#type-response">response</a>
+    <a href="#type-response">response</a> -> string -> string -> <a href="#type-request">request</a> -> unit
 </pre>|}
 
 let cookie_expected = {|<div class="spec value" id="val-cookie">
  <a href="#val-cookie" class="anchor"></a><code><span><span class="keyword">val</span> cookie : <span>?prefix:<span><span>[&lt; `Host <span>| `Secure</span> ]</span> option</span> <span class="arrow">-&gt;</span></span> <span>?decrypt:bool <span class="arrow">-&gt;</span></span>
-<span>?domain:string <span class="arrow">-&gt;</span></span> <span>?path:<span>string option</span> <span class="arrow">-&gt;</span></span> <span>?secure:bool <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span>string option</span></span></code>
+<span>?domain:string <span class="arrow">-&gt;</span></span> <span>?path:<span>string option</span> <span class="arrow">-&gt;</span></span> <span>?secure:bool <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>string option</span></span></code>
 </div>
 |}
 
@@ -672,7 +672,7 @@ let cookie_replacement = {|
   ?domain:string ->
   ?path:string option ->
   ?secure:bool ->
-    string -> <a href="#type-request">request</a> -> string option
+    <a href="#type-request">request</a> -> string -> string option
 </pre>
 |}
 
@@ -688,35 +688,6 @@ let bigstring_replacement = {|
 </pre>
 |}
 
-let next_expected = {|<div class="spec value" id="val-next">
- <a href="#val-next" class="anchor"></a><code><span><span class="keyword">val</span> next : <span>buffer:<span>(<span><a href="#type-buffer">buffer</a> <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span>close:<span>(<span>unit <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span>exn:<span>(<span>exn <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span>
-<span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> unit</span></code>
-</div>
-|}
-
-let next_replacement = {|
-<pre><span class="keyword">val</span> next :
-  buffer:(<a href="#type-buffer">buffer</a> -> int -> int -> unit) ->
-  close:(unit -> unit) ->
-  exn:(exn -> unit) ->
-  <a href="#type-request">request</a> ->
-    unit
-</pre>
-|}
-
-let write_bigstring_expected = {|<div class="spec value" id="val-write_buffer">
- <a href="#val-write_buffer" class="anchor"></a><code><span><span class="keyword">val</span> write_buffer : <span>?offset:int <span class="arrow">-&gt;</span></span> <span>?length:int <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <span class="arrow">-&gt;</span></span> <span><a href="#type-buffer">buffer</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
-</div>
-|}
-
-let write_bigstring_replacement = {|
-<pre><span class="keyword">val</span> write_buffer :
-  ?offset:int ->
-  ?length:int ->
-    <a href="#type-response">response</a> -> <a href="#type-buffer">buffer</a> -> unit <a href="#type-promise">promise</a>
-</pre>
-|}
-
 let form_expected = {|<div class="spec type" id="type-form_result">
  <a href="#type-form_result" class="anchor"></a><code><span><span class="keyword">type</span> <span>'a form_result</span></span><span> = </span><span>[ </span></code>
  <table>
@@ -775,13 +746,13 @@ let form_replacement = {|
 |}
 
 let form'_expected = {|<div class="spec value" id="val-form">
- <a href="#val-form" class="anchor"></a><code><span><span class="keyword">val</span> form : <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span><span><span><span>(string * string)</span> list</span> <a href="#type-form_result">form_result</a></span> <a href="#type-promise">promise</a></span></span></code>
+ <a href="#val-form" class="anchor"></a><code><span><span class="keyword">val</span> form : <span>?csrf:bool <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span><span><span><span>(string * string)</span> list</span> <a href="#type-form_result">form_result</a></span> <a href="#type-promise">promise</a></span></span></code>
 </div>
 |}
 
 let form'_replacement = {|
 <pre><span class="keyword">val</span> form :
-  <a href="#type-request">request</a> -> (string * string) list <a href="#type-form_result">form_result</a> <a href="#type-promise">promise</a>
+  ?csrf:bool -> <a href="#type-request">request</a> -> (string * string) list <a href="#type-form_result">form_result</a> <a href="#type-promise">promise</a>
 </pre>
 |}
 
@@ -797,13 +768,13 @@ let multipart_form_replacement = {|
 |}
 
 let multipart_expected = {|<div class="spec value" id="val-multipart">
- <a href="#val-multipart" class="anchor"></a><code><span><span class="keyword">val</span> multipart : <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span><span><a href="#type-multipart_form">multipart_form</a> <a href="#type-form_result">form_result</a></span> <a href="#type-promise">promise</a></span></span></code>
+ <a href="#val-multipart" class="anchor"></a><code><span><span class="keyword">val</span> multipart : <span>?csrf:bool <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span><span><a href="#type-multipart_form">multipart_form</a> <a href="#type-form_result">form_result</a></span> <a href="#type-promise">promise</a></span></span></code>
 </div>
 |}
 
 let multipart_replacement = {|
 <pre><span class="keyword">val</span> multipart :
-  <a href="#type-request">request</a> -> <a href="#type-multipart">multipart_form</a> <a href="#type-form_result">form_result</a> <a href="#type-promise">promise</a>
+  ?csrf:bool -> <a href="#type-request">request</a> -> <a href="#type-multipart">multipart_form</a> <a href="#type-form_result">form_result</a> <a href="#type-promise">promise</a>
 </pre>
 |}
 
@@ -1044,13 +1015,15 @@ let websocket_replacement = {|
 |}
 
 let send_expected = {|<div class="spec value" id="val-send">
- <a href="#val-send" class="anchor"></a><code><span><span class="keyword">val</span> send : <span>?kind:<span>[&lt; `Text <span>| `Binary</span> ]</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-websocket">websocket</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
+ <a href="#val-send" class="anchor"></a><code><span><span class="keyword">val</span> send : <span>?text_or_binary:<span>[&lt; `Text <span>| `Binary</span> ]</span> <span class="arrow">-&gt;</span></span>
+<span>?end_of_message:<span>[&lt; `End_of_message <span>| `Continues</span> ]</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-websocket">websocket</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
 </div>
 |}
 
 let send_replacement = {|
 <pre><span class="keyword">val</span> send :
-  ?kind:[&lt; `Text | `Binary ] ->
+  ?text_or_binary:[&lt; `Text | `Binary ] ->
+  ?end_of_message:[&lt; `End_of_message | `Continues ] ->
     <a href="#type-websocket">websocket</a> -> string -> unit <a href="#type-promise">promise</a>
 </pre>
 |}
@@ -1229,13 +1202,13 @@ let initialize_log_replacement = {|
 </pre>|}
 
 let error_template_expected = {|<div class="spec value" id="val-error_template">
- <a href="#val-error_template" class="anchor"></a><code><span><span class="keyword">val</span> error_template : <span><span>(<span><a href="#type-error">error</a> <span class="arrow">-&gt;</span></span> <span><span>string option</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <a href="#type-promise">promise</a></span>)</span> <span class="arrow">-&gt;</span></span> <a href="#type-error_handler">error_handler</a></span></code>
+ <a href="#val-error_template" class="anchor"></a><code><span><span class="keyword">val</span> error_template : <span><span>(<span><a href="#type-error">error</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <a href="#type-promise">promise</a></span>)</span> <span class="arrow">-&gt;</span></span> <a href="#type-error_handler">error_handler</a></span></code>
 </div>
 |}
 
 let error_template_replacement = {|
 <pre><span class="keyword">val</span> error_template :
-  (<a href="#type-error">error</a> -> string option -> <a href="#val-response">response</a> -> <a href="#val-response">response</a> <a href="#type-promise">promise</a>) ->
+  (<a href="#type-error">error</a> -> string -> <a href="#val-response">response</a> -> <a href="#val-response">response</a> <a href="#type-promise">promise</a>) ->
     <a href="#type-error_handler">error_handler</a>
 </pre>
 |}
@@ -1279,11 +1252,6 @@ let error_expected = {|<div class="spec type" id="type-error">
      <a href="#type-error.severity" class="anchor"></a><code><span>severity : <a href="#type-log_level">log_level</a>;</span></code>
     </td>
    </tr>
-   <tr id="type-error.debug" class="anchored">
-    <td class="def record field">
-     <a href="#type-error.debug" class="anchor"></a><code><span>debug : bool;</span></code>
-    </td>
-   </tr>
    <tr id="type-error.will_send_response" class="anchored">
     <td class="def record field">
      <a href="#type-error.will_send_response" class="anchor"></a><code><span>will_send_response : bool;</span></code>
@@ -1308,21 +1276,20 @@ let error_replacement = {|
   response  <span class="of">:</span> <a href="#type-response">response</a> option;
   client    <span class="of">:</span> string   option;
   severity  <span class="of">:</span> <a href="#type-log_level">log_level</a>;
-  debug     <span class="of">:</span> bool;
   will_send_response <span class="of">:</span> bool;
 }
 </pre>|}
 
-let new_local_expected = {|<div class="spec value" id="val-new_local">
- <a href="#val-new_local" class="anchor"></a><code><span><span class="keyword">val</span> new_local : <span>?name:string <span class="arrow">-&gt;</span></span> <span>?show_value:<span>(<span><span class="type-var">'a</span> <span class="arrow">-&gt;</span></span> string)</span> <span class="arrow">-&gt;</span></span> <span>unit <span class="arrow">-&gt;</span></span> <span><span class="type-var">'a</span> <a href="#type-local">local</a></span></span></code>
+let new_field_expected = {|<div class="spec value" id="val-new_field">
+ <a href="#val-new_field" class="anchor"></a><code><span><span class="keyword">val</span> new_field : <span>?name:string <span class="arrow">-&gt;</span></span> <span>?show_value:<span>(<span><span class="type-var">'a</span> <span class="arrow">-&gt;</span></span> string)</span> <span class="arrow">-&gt;</span></span> <span>unit <span class="arrow">-&gt;</span></span> <span><span class="type-var">'a</span> <a href="#type-field">field</a></span></span></code>
 </div>
 |}
 
-let new_local_replacement = {|
-<pre><span class="keyword">val</span> new_local :
+let new_field_replacement = {|
+<pre><span class="keyword">val</span> new_field :
   ?name:string ->
   ?show_value:('a -> string) ->
-    unit -> 'a <a href="#type-local">local</a>
+    unit -> 'a <a href="#type-field">field</a>
 </pre>
 |}
 
@@ -1339,8 +1306,7 @@ let new_global_replacement = {|
 |}
 
 let run_expected = {|<div class="spec value" id="val-run">
- <a href="#val-run" class="anchor"></a><code><span><span class="keyword">val</span> run : <span>?interface:string <span class="arrow">-&gt;</span></span> <span>?port:int <span class="arrow">-&gt;</span></span> <span>?stop:<span>unit <a href="#type-promise">promise</a></span> <span class="arrow">-&gt;</span></span> <span>?debug:bool <span class="arrow">-&gt;</span></span>
-<span>?error_handler:<a href="#type-error_handler">error_handler</a> <span class="arrow">-&gt;</span></span> <span>?secret:string <span class="arrow">-&gt;</span></span> <span>?old_secrets:<span>string list</span> <span class="arrow">-&gt;</span></span> <span>?prefix:string <span class="arrow">-&gt;</span></span>
+ <a href="#val-run" class="anchor"></a><code><span><span class="keyword">val</span> run : <span>?interface:string <span class="arrow">-&gt;</span></span> <span>?port:int <span class="arrow">-&gt;</span></span> <span>?stop:<span>unit <a href="#type-promise">promise</a></span> <span class="arrow">-&gt;</span></span> <span>?error_handler:<a href="#type-error_handler">error_handler</a> <span class="arrow">-&gt;</span></span>
 <span>?https:bool <span class="arrow">-&gt;</span></span> <span>?certificate_file:string <span class="arrow">-&gt;</span></span> <span>?key_file:string <span class="arrow">-&gt;</span></span> <span>?builtins:bool <span class="arrow">-&gt;</span></span>
 <span>?greeting:bool <span class="arrow">-&gt;</span></span> <span>?adjust_terminal:bool <span class="arrow">-&gt;</span></span> <span><a href="#type-handler">handler</a> <span class="arrow">-&gt;</span></span> unit</span></code>
 </div>
@@ -1351,7 +1317,6 @@ let run_replacement = {|
   <span class="optional">?interface:string ->
   ?port:int ->
   ?stop:unit <a href="#type-promise">promise</a> ->
-  ?debug:bool ->
   ?error_handler:<a href="#type-error_handler">error_handler</a> ->
   ?secret:string ->
   ?old_secrets:string list ->
@@ -1366,8 +1331,7 @@ let run_replacement = {|
 </pre>|}
 
 let serve_expected = {|<div class="spec value" id="val-serve">
- <a href="#val-serve" class="anchor"></a><code><span><span class="keyword">val</span> serve : <span>?interface:string <span class="arrow">-&gt;</span></span> <span>?port:int <span class="arrow">-&gt;</span></span> <span>?stop:<span>unit <a href="#type-promise">promise</a></span> <span class="arrow">-&gt;</span></span> <span>?debug:bool <span class="arrow">-&gt;</span></span>
-<span>?error_handler:<a href="#type-error_handler">error_handler</a> <span class="arrow">-&gt;</span></span> <span>?secret:string <span class="arrow">-&gt;</span></span> <span>?old_secrets:<span>string list</span> <span class="arrow">-&gt;</span></span> <span>?prefix:string <span class="arrow">-&gt;</span></span>
+ <a href="#val-serve" class="anchor"></a><code><span><span class="keyword">val</span> serve : <span>?interface:string <span class="arrow">-&gt;</span></span> <span>?port:int <span class="arrow">-&gt;</span></span> <span>?stop:<span>unit <a href="#type-promise">promise</a></span> <span class="arrow">-&gt;</span></span> <span>?error_handler:<a href="#type-error_handler">error_handler</a> <span class="arrow">-&gt;</span></span>
 <span>?https:bool <span class="arrow">-&gt;</span></span> <span>?certificate_file:string <span class="arrow">-&gt;</span></span> <span>?key_file:string <span class="arrow">-&gt;</span></span> <span>?builtins:bool <span class="arrow">-&gt;</span></span>
 <span><a href="#type-handler">handler</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
 </div>
@@ -1378,7 +1342,6 @@ let serve_replacement = {|
   <span class="optional">?interface:string ->
   ?port:int ->
   ?stop:unit <a href="#type-promise">promise</a> ->
-  ?debug:bool ->
   ?error_handler:<a href="#type-error_handler">error_handler</a> ->
   ?secret:string ->
   ?old_secrets:string list ->
@@ -1459,15 +1422,14 @@ let decrypt_replacement = {|
 |}
 
 let request_expected = {|<div class="spec value" id="val-request">
- <a href="#val-request" class="anchor"></a><code><span><span class="keyword">val</span> request : <span>?client:string <span class="arrow">-&gt;</span></span> <span>?method_:<span>[&lt; <a href="#type-method_">method_</a> ]</span> <span class="arrow">-&gt;</span></span> <span>?target:string <span class="arrow">-&gt;</span></span>
-<span>?version:<span>(int * int)</span> <span class="arrow">-&gt;</span></span> <span>?headers:<span><span>(string * string)</span> list</span> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <a href="#type-request">request</a></span></code>
+ <a href="#val-request" class="anchor"></a><code><span><span class="keyword">val</span> request : <span>?method_:<span>[&lt; <a href="#type-method_">method_</a> ]</span> <span class="arrow">-&gt;</span></span> <span>?target:string <span class="arrow">-&gt;</span></span> <span>?version:<span>(int * int)</span> <span class="arrow">-&gt;</span></span>
+<span>?headers:<span><span>(string * string)</span> list</span> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <a href="#type-request">request</a></span></code>
 </div>
 |}
 
 let request_replacement = {|
 <pre><span class="keyword">val</span> request :
-  <span class="optional">?client:string ->
-  ?method_:[&lt; <a href="#type-method_">method_</a> ] ->
+  <span class="optional">?method_:[&lt; <a href="#type-method_">method_</a> ] ->
   ?target:string ->
   ?version:int * int ->
   ?headers:(string * string) list -></span>
@@ -1600,7 +1562,7 @@ let pretty_print_signatures soup =
   in
 
   replace "#val-add_header" add_header_expected add_header_replacement;
-  multiline "#val-with_header" with_header_expected with_header_replacement;
+  multiline "#val-set_header" set_header_expected set_header_replacement;
 
   let add_set_cookie = soup $ "#val-set_cookie" in
   if_expected
@@ -1622,23 +1584,6 @@ let pretty_print_signatures soup =
       Soup.replace (bigstring $ "> code") (Soup.parse bigstring_replacement);
       Soup.add_class "multiline" bigstring);
 
-  let next = soup $ "#val-next" in
-  if_expected
-    next_expected
-    (fun () -> pretty_print next)
-    (fun () ->
-      Soup.replace (next $ "> code") (Soup.parse next_replacement);
-      Soup.add_class "multiline" next);
-
-  let write_bigstring = soup $ "#val-write_buffer" in
-  if_expected
-    write_bigstring_expected
-    (fun () -> pretty_print write_bigstring)
-    (fun () ->
-      Soup.replace
-        (write_bigstring $ "> code") (Soup.parse write_bigstring_replacement);
-      Soup.add_class "multiline" write_bigstring);
-
   let form = soup $ "#type-form_result" in
   if_expected
     form_expected
@@ -1756,8 +1701,7 @@ let pretty_print_signatures soup =
       Soup.replace (error $ "> table") (Soup.parse error_replacement);
       Soup.add_class "multiline" error);
 
-  multiline "#val-new_local" new_local_expected new_local_replacement;
-  multiline "#val-new_global" new_global_expected new_global_replacement;
+  multiline "#val-new_field" new_field_expected new_field_replacement;
 
   let run = soup $ "#val-run" in
   if_expected
diff --git a/docs/web/templates/index.html b/docs/web/templates/index.html
index c63b4d53..3b2063b0 100644
--- a/docs/web/templates/index.html
+++ b/docs/web/templates/index.html
@@ -32,7 +32,7 @@ <h6>Tidy Web framework for OCaml and ReasonML</h6>
     </div>
 
     <ul>
-      <li><code>1.0.0~alpha3~master</code></li>
+      <li><code>1.0.0~alpha3</code></li>
       <li><code>opam install dream</code></li>
       <li><a target="_blank" rel="noreferrer noopener" href="https://github.com/aantron/dream">GitHub</a></li>
       <li><a target="_blank" rel="noreferrer noopener" href="https://github.com/aantron/dream/blob/master/src/dream.mli">Edit these docs</a></li>
diff --git a/src/dream.mli b/src/dream.mli
index 19aed436..4d23a841 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -542,6 +542,7 @@ val has_header : 'a message -> string -> bool
 val add_header : 'a message -> string -> string -> unit
 (** Appends a header with the given name and value. Does not remove any existing
     headers with the same name. *)
+(* TODO Does this fit on one line in the docs now? *)
 
 val drop_header : 'a message -> string -> unit
 (** Removes all headers with the given name. *)
@@ -805,9 +806,9 @@ val client_stream : 'a message -> stream
 val server_stream : 'a message -> stream
 (* TODO Document that this is for middlewares that are transforming a response
    stream or a WebSocket. *)
-val set_client_stream : 'a message -> stream -> unit
+val set_client_stream : response -> stream -> unit
 (* TODO Normalize with with_stream, or add a separate with_server_stream. *)
-val set_server_stream : 'a message -> stream -> unit
+val set_server_stream : request -> stream -> unit
 
 (* TODO Probably even close can be made optional. exn can be made optional. *)
 (* TODO Argument order? *)
@@ -881,7 +882,10 @@ val websocket :
           Dream.close_websocket websocket);
     ]} *)
 
-val send : ?text_or_binary:[ `Text | `Binary ] -> ?end_of_message:[ `End_of_message | `Continues ] -> websocket -> string -> unit promise
+val send :
+  ?text_or_binary:[< `Text | `Binary ] ->
+  ?end_of_message:[< `End_of_message | `Continues ] ->
+    websocket -> string -> unit promise
 (** Sends a single message. The WebSocket is ready another message when the
     promise resolves.
 

From 181175d3a9e12c145033728b98a091e38e8501f6 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 12:41:55 +0300
Subject: [PATCH 147/312] Update docs and tweak signatures

---
 docs/web/postprocess/index.ml | 245 ++++++++++++++++++++++++++++++++--
 docs/web/site/docs.css        |   4 +-
 src/dream.ml                  |   3 +
 src/dream.mli                 | 182 +++++++++++++++++--------
 src/pure/message.ml           |  18 ++-
 src/pure/message.mli          |   4 +-
 src/server/cookie.ml          |   8 +-
 src/server/flash.ml           |   5 +-
 src/server/session.ml         |   4 +-
 src/sql/session.ml            |   2 +-
 10 files changed, 389 insertions(+), 86 deletions(-)

diff --git a/docs/web/postprocess/index.ml b/docs/web/postprocess/index.ml
index 93f14525..f316fb99 100644
--- a/docs/web/postprocess/index.ml
+++ b/docs/web/postprocess/index.ml
@@ -641,7 +641,7 @@ let add_set_cookie_expected = {|<div class="spec value" id="val-set_cookie">
  <a href="#val-set_cookie" class="anchor"></a><code><span><span class="keyword">val</span> set_cookie : <span>?prefix:<span><span>[&lt; `Host <span>| `Secure</span> ]</span> option</span> <span class="arrow">-&gt;</span></span> <span>?encrypt:bool <span class="arrow">-&gt;</span></span>
 <span>?expires:float <span class="arrow">-&gt;</span></span> <span>?max_age:float <span class="arrow">-&gt;</span></span> <span>?domain:string <span class="arrow">-&gt;</span></span> <span>?path:<span>string option</span> <span class="arrow">-&gt;</span></span>
 <span>?secure:bool <span class="arrow">-&gt;</span></span> <span>?http_only:bool <span class="arrow">-&gt;</span></span> <span>?same_site:<span><span>[&lt; `Strict <span>| `Lax</span> <span>| `None</span> ]</span> option</span> <span class="arrow">-&gt;</span></span>
-<span><a href="#type-response">response</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> unit</span></code>
+<span><a href="#type-response">response</a> <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> unit</span></code>
 </div>
 |}
 
@@ -656,7 +656,25 @@ let add_set_cookie_replacement = {|
   ?secure:bool ->
   ?http_only:bool ->
   ?same_site:[&lt; `Strict | `Lax | `None ] option -></span>
-    <a href="#type-response">response</a> -> string -> string -> <a href="#type-request">request</a> -> unit
+    <a href="#type-response">response</a> -> <a href="#type-request">request</a> -> string -> string -> unit
+</pre>|}
+
+let drop_cookie_expected = {|<div class="spec value" id="val-drop_cookie">
+ <a href="#val-drop_cookie" class="anchor"></a><code><span><span class="keyword">val</span> drop_cookie : <span>?prefix:<span><span>[&lt; `Host <span>| `Secure</span> ]</span> option</span> <span class="arrow">-&gt;</span></span> <span>?domain:string <span class="arrow">-&gt;</span></span>
+<span>?path:<span>string option</span> <span class="arrow">-&gt;</span></span> <span>?secure:bool <span class="arrow">-&gt;</span></span> <span>?http_only:bool <span class="arrow">-&gt;</span></span>
+<span>?same_site:<span><span>[&lt; `Strict <span>| `Lax</span> <span>| `None</span> ]</span> option</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> unit</span></code>
+</div>
+|}
+
+let drop_cookie_replacement = {|
+<pre><span class="keyword">val</span> drop_cookie :
+  <span class="optional">?prefix:[&lt; `Host | `Secure ] option ->
+  ?domain:string ->
+  ?path:string option ->
+  ?secure:bool ->
+  ?http_only:bool ->
+  ?same_site:[&lt; `Strict | `Lax | `None ] option -></span>
+    <a href="#type-response">response</a> -> <a href="#type-request">request</a> -> string -> unit
 </pre>|}
 
 let cookie_expected = {|<div class="spec value" id="val-cookie">
@@ -688,6 +706,91 @@ let bigstring_replacement = {|
 </pre>
 |}
 
+let read_stream_expected = {|<div class="spec value" id="val-read_stream">
+ <a href="#val-read_stream" class="anchor"></a><code><span><span class="keyword">val</span> read_stream : <span><a href="#type-stream">stream</a> <span class="arrow">-&gt;</span></span> <span>data:<span>(<span><a href="#type-buffer">buffer</a> <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>bool <span class="arrow">-&gt;</span></span> <span>bool <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span>flush:<span>(<span>unit <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span>
+<span>ping:<span>(<span><a href="#type-buffer">buffer</a> <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span>pong:<span>(<span><a href="#type-buffer">buffer</a> <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span>close:<span>(<span>int <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span>
+<span>exn:<span>(<span>exn <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> unit</span></code>
+</div>
+|}
+
+let read_stream_replacement = {|
+<pre><span class="keyword">val</span> read_stream :
+  <a href="#type-stream">stream</a> ->
+  data:(<a href="#type-buffer">buffer</a> -> int -> int -> bool -> bool -> unit) ->
+  flush:(unit -> unit) ->
+  ping:(<a href="#type-buffer">buffer</a> -> int -> int -> unit) ->
+  pong:(<a href="#type-buffer">buffer</a> -> int -> int -> unit) ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
+    unit
+</pre>
+|}
+
+let write_stream_expected = {|<div class="spec value" id="val-write_stream">
+ <a href="#val-write_stream" class="anchor"></a><code><span><span class="keyword">val</span> write_stream : <span><a href="#type-stream">stream</a> <span class="arrow">-&gt;</span></span> <span><a href="#type-buffer">buffer</a> <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>bool <span class="arrow">-&gt;</span></span> <span>bool <span class="arrow">-&gt;</span></span> <span>close:<span>(<span>int <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span>
+<span>exn:<span>(<span>exn <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span><span>(<span>unit <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> unit</span></code>
+</div>
+|}
+
+let write_stream_replacement = {|
+<pre><span class="keyword">val</span> write_stream :
+  <a href="#type-stream">stream</a> ->
+  <a href="#type-buffer">buffer</a> -> int -> int ->
+  bool -> bool ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
+  (unit -> unit) ->
+    unit
+</pre>|}
+
+let flush_stream_expected = {|<div class="spec value" id="val-flush_stream">
+ <a href="#val-flush_stream" class="anchor"></a><code><span><span class="keyword">val</span> flush_stream : <span><a href="#type-stream">stream</a> <span class="arrow">-&gt;</span></span> <span>close:<span>(<span>int <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span>exn:<span>(<span>exn <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span><span>(<span>unit <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> unit</span></code>
+</div>
+|}
+
+let flush_stream_replacement = {|
+<pre><span class="keyword">val</span> flush_stream :
+  <a href="#type-stream">stream</a> ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
+  (unit -> unit) ->
+    unit
+</pre>|}
+
+let ping_stream_expected = {|<div class="spec value" id="val-ping_stream">
+ <a href="#val-ping_stream" class="anchor"></a><code><span><span class="keyword">val</span> ping_stream : <span><a href="#type-stream">stream</a> <span class="arrow">-&gt;</span></span> <span><a href="#type-buffer">buffer</a> <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>close:<span>(<span>int <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span>exn:<span>(<span>exn <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span>
+<span><span>(<span>unit <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> unit</span></code>
+</div>
+|}
+
+let ping_stream_replacement = {|
+<pre>
+<span class="keyword">val</span> ping_stream :
+  <a href="#type-stream">stream</a> ->
+  <a href="#type-buffer">buffer</a> -> int -> int ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
+  (unit -> unit) ->
+    unit
+</pre>|}
+
+let pong_stream_expected = {|<div class="spec value" id="val-pong_stream">
+ <a href="#val-pong_stream" class="anchor"></a><code><span><span class="keyword">val</span> pong_stream : <span><a href="#type-stream">stream</a> <span class="arrow">-&gt;</span></span> <span><a href="#type-buffer">buffer</a> <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>int <span class="arrow">-&gt;</span></span> <span>close:<span>(<span>int <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> <span>exn:<span>(<span>exn <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span>
+<span><span>(<span>unit <span class="arrow">-&gt;</span></span> unit)</span> <span class="arrow">-&gt;</span></span> unit</span></code>
+</div>
+|}
+
+let pong_stream_replacement = {|
+<pre>
+<span class="keyword">val</span> pong_stream :
+  <a href="#type-stream">stream</a> ->
+  <a href="#type-buffer">buffer</a> -> int -> int ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
+  (unit -> unit) ->
+    unit
+</pre>|}
+
 let form_expected = {|<div class="spec type" id="type-form_result">
  <a href="#type-form_result" class="anchor"></a><code><span><span class="keyword">type</span> <span>'a form_result</span></span><span> = </span><span>[ </span></code>
  <table>
@@ -752,7 +855,8 @@ let form'_expected = {|<div class="spec value" id="val-form">
 
 let form'_replacement = {|
 <pre><span class="keyword">val</span> form :
-  ?csrf:bool -> <a href="#type-request">request</a> -> (string * string) list <a href="#type-form_result">form_result</a> <a href="#type-promise">promise</a>
+  ?csrf:bool ->
+    <a href="#type-request">request</a> -> (string * string) list <a href="#type-form_result">form_result</a> <a href="#type-promise">promise</a>
 </pre>
 |}
 
@@ -774,7 +878,8 @@ let multipart_expected = {|<div class="spec value" id="val-multipart">
 
 let multipart_replacement = {|
 <pre><span class="keyword">val</span> multipart :
-  ?csrf:bool -> <a href="#type-request">request</a> -> <a href="#type-multipart">multipart_form</a> <a href="#type-form_result">form_result</a> <a href="#type-promise">promise</a>
+  ?csrf:bool ->
+    <a href="#type-request">request</a> -> <a href="#type-multipart">multipart_form</a> <a href="#type-form_result">form_result</a> <a href="#type-promise">promise</a>
 </pre>
 |}
 
@@ -1009,25 +1114,83 @@ let websocket_expected = {|<div class="spec value" id="val-websocket">
 let websocket_replacement = {|
 <pre><span class="keyword">val</span> websocket :
   ?headers:(string * string) list ->
-  (<a href="#type-websocket">websocket</a> -> unit <a href="#type-promise">promise</a>) ->
-    <a href="#type-response">response</a> <a href="#type-promise">promise</a>
+    (<a href="#type-websocket">websocket</a> -> unit <a href="#type-promise">promise</a>) -> <a href="#type-response">response</a> <a href="#type-promise">promise</a>
 </pre>
 |}
 
+let text_or_binary_expected = {|<div class="spec type" id="type-text_or_binary">
+ <a href="#type-text_or_binary" class="anchor"></a><code><span><span class="keyword">type</span> text_or_binary</span><span> = </span><span>[ </span></code>
+ <table>
+  <tbody>
+   <tr id="type-text_or_binary.Text" class="anchored">
+    <td class="def constructor">
+     <a href="#type-text_or_binary.Text" class="anchor"></a><code><span>| </span></code><code><span>`Text</span></code>
+    </td>
+   </tr>
+   <tr id="type-text_or_binary.Binary" class="anchored">
+    <td class="def constructor">
+     <a href="#type-text_or_binary.Binary" class="anchor"></a><code><span>| </span></code><code><span>`Binary</span></code>
+    </td>
+   </tr>
+  </tbody>
+ </table>
+ <code><span> ]</span></code>
+</div>
+|}
+
+let text_or_binary_replacement = {|
+<pre class="compact"><span class="keyword">type</span> text_or_binary = [ `Text | `Binary ]</pre>
+|}
+
+let end_of_message_expected = {|<div class="spec type" id="type-end_of_message">
+ <a href="#type-end_of_message" class="anchor"></a><code><span><span class="keyword">type</span> end_of_message</span><span> = </span><span>[ </span></code>
+ <table>
+  <tbody>
+   <tr id="type-end_of_message.End_of_message" class="anchored">
+    <td class="def constructor">
+     <a href="#type-end_of_message.End_of_message" class="anchor"></a><code><span>| </span></code><code><span>`End_of_message</span></code>
+    </td>
+   </tr>
+   <tr id="type-end_of_message.Continues" class="anchored">
+    <td class="def constructor">
+     <a href="#type-end_of_message.Continues" class="anchor"></a><code><span>| </span></code><code><span>`Continues</span></code>
+    </td>
+   </tr>
+  </tbody>
+ </table>
+ <code><span> ]</span></code>
+</div>
+|}
+
+let end_of_message_replacement = {|
+<pre class="compact"><span class="keyword">type</span> end_of_message = [ `End_of_message | `Continues ]</pre>
+|}
+
 let send_expected = {|<div class="spec value" id="val-send">
- <a href="#val-send" class="anchor"></a><code><span><span class="keyword">val</span> send : <span>?text_or_binary:<span>[&lt; `Text <span>| `Binary</span> ]</span> <span class="arrow">-&gt;</span></span>
-<span>?end_of_message:<span>[&lt; `End_of_message <span>| `Continues</span> ]</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-websocket">websocket</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
+ <a href="#val-send" class="anchor"></a><code><span><span class="keyword">val</span> send : <span>?text_or_binary:<span>[&lt; <a href="#type-text_or_binary">text_or_binary</a> ]</span> <span class="arrow">-&gt;</span></span> <span>?end_of_message:<span>[&lt; <a href="#type-end_of_message">end_of_message</a> ]</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-websocket">websocket</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
 </div>
 |}
 
 let send_replacement = {|
 <pre><span class="keyword">val</span> send :
-  ?text_or_binary:[&lt; `Text | `Binary ] ->
-  ?end_of_message:[&lt; `End_of_message | `Continues ] ->
+  ?text_or_binary:[&lt; <a href="#type-text_or_binary">text_or_binary</a> ] ->
+  ?end_of_message:[&lt; <a href="#type-end_of_message">end_of_message</a> ] ->
     <a href="#type-websocket">websocket</a> -> string -> unit <a href="#type-promise">promise</a>
 </pre>
 |}
 
+let receive_fragment_expected = {|<div class="spec value" id="val-receive_fragment">
+ <a href="#val-receive_fragment" class="anchor"></a><code><span><span class="keyword">val</span> receive_fragment : <span><a href="#type-websocket">websocket</a> <span class="arrow">-&gt;</span></span> <span><span><span>(string * <a href="#type-text_or_binary">text_or_binary</a> * <a href="#type-end_of_message">end_of_message</a>)</span> option</span> <a href="#type-promise">promise</a></span></span></code>
+</div>
+|}
+
+let receive_fragment_replacement = {|
+<pre><span class="keyword">val</span> receive_fragment :
+  <a href="#type-websocket">websocket</a> ->
+    (string * <a href="#type-text_or_binary">text_or_binary</a> * <a href="#type-end_of_message">end_of_message</a>) option <a href="#type-promise">promise</a>
+</pre>
+|}
+
 let close_websocket_expected = {|<div class="spec value" id="val-close_websocket">
  <a href="#val-close_websocket" class="anchor"></a><code><span><span class="keyword">val</span> close_websocket : <span>?code:int <span class="arrow">-&gt;</span></span> <span><a href="#type-websocket">websocket</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
 </div>
@@ -1446,6 +1609,33 @@ let sort_headers_replacement = {|
   (string * string) list -> (string * string) list
 </pre>|}
 
+let message_expected = {|<div class="spec type" id="type-message">
+ <a href="#type-message" class="anchor"></a><code><span><span class="keyword">and</span> <span>'a message</span></span><span> = <span><span class="type-var">'a</span> <a href="../../dream-pure/Dream_pure/Message/index.html#type-message">Dream_pure.Message.message</a></span></span></code>
+</div>
+|}
+
+let message_replacement = {|
+<code><span><span class="keyword">and</span> message</span></code>
+|}
+
+let client_expected' = {|<div class="spec type" id="type-client">
+ <a href="#type-client" class="anchor"></a><code><span><span class="keyword">and</span> client</span><span> = <a href="../../dream-pure/Dream_pure/Message/index.html#type-client">Dream_pure.Message.client</a></span></code>
+</div>
+|}
+
+let client_replacement' = {|
+<code><span><span class="keyword">and</span> client</span></code>
+|}
+
+let server_expected' = {|<div class="spec type" id="type-server">
+ <a href="#type-server" class="anchor"></a><code><span><span class="keyword">and</span> server</span><span> = <a href="../../dream-pure/Dream_pure/Message/index.html#type-server">Dream_pure.Message.server</a></span></code>
+</div>
+|}
+
+let server_replacement' = {|
+<code><span><span class="keyword">and</span> server</span></code>
+|}
+
 let pretty_print_signatures soup =
   let method_ = soup $ "#type-method_" in
   if_expected
@@ -1456,7 +1646,7 @@ let pretty_print_signatures soup =
       Soup.replace (method_ $ "> table") (Soup.parse method_replacement);
       Soup.add_class "multiline" method_);
 
-  let rewrite_status_group id expected replacement =
+  let rewrite_status_group ?(multiline = true) id expected replacement =
     let group = soup $ id in
     if_expected
       expected
@@ -1464,7 +1654,8 @@ let pretty_print_signatures soup =
       (fun () ->
         group $$ "> code" |> Soup.iter Soup.delete;
         Soup.replace (group $ "> table") (Soup.parse replacement);
-        Soup.add_class "multiline" group)
+        if multiline then
+          Soup.add_class "multiline" group)
   in
 
   rewrite_status_group
@@ -1574,6 +1765,16 @@ let pretty_print_signatures soup =
         (Soup.parse add_set_cookie_replacement);
       Soup.add_class "multiline" add_set_cookie);
 
+  let drop_cookie = soup $ "#val-drop_cookie" in
+  if_expected
+    drop_cookie_expected
+    (fun () -> pretty_print drop_cookie)
+    (fun () ->
+      Soup.replace
+        (drop_cookie $ "> code")
+        (Soup.parse drop_cookie_replacement);
+      Soup.add_class "multiline" drop_cookie);
+
   multiline "#val-cookie" cookie_expected cookie_replacement;
 
   let bigstring = soup $ "#type-buffer" in
@@ -1739,7 +1940,25 @@ let pretty_print_signatures soup =
       Soup.replace (request $ "> code") (Soup.parse request_replacement);
       Soup.add_class "multiline" request);
 
-  multiline "#val-sort_headers" sort_headers_expected sort_headers_replacement
+  multiline "#val-sort_headers" sort_headers_expected sort_headers_replacement;
+
+  replace "#type-message" message_expected message_replacement;
+  replace "#type-client" client_expected' client_replacement';
+  replace "#type-server" server_expected' server_replacement';
+
+  multiline "#val-read_stream" read_stream_expected read_stream_replacement;
+  multiline "#val-write_stream" write_stream_expected write_stream_replacement;
+  multiline "#val-flush_stream" flush_stream_expected flush_stream_replacement;
+  multiline "#val-ping_stream" ping_stream_expected ping_stream_replacement;
+  multiline "#val-pong_stream" pong_stream_expected pong_stream_replacement;
+
+  rewrite_status_group ~multiline:false
+    "#type-text_or_binary" text_or_binary_expected text_or_binary_replacement;
+  rewrite_status_group ~multiline:false
+    "#type-end_of_message" end_of_message_expected end_of_message_replacement;
+
+  multiline
+    "#val-receive_fragment" receive_fragment_expected receive_fragment_replacement
 
 let remove_stdlib soup =
   soup $$ ".xref-unresolved:contains(\"Stdlib\")" |> Soup.iter (fun element ->
diff --git a/docs/web/site/docs.css b/docs/web/site/docs.css
index bcc19848..48bd4240 100644
--- a/docs/web/site/docs.css
+++ b/docs/web/site/docs.css
@@ -462,8 +462,8 @@ ul ul li {
     margin-bottom: 24px;
   }
 
-  #type-outgoing + .spec-doc {
-    margin-top: -1.5rem;
+  #type-server + .spec-doc {
+    margin-top: -26px;
     margin-bottom: 48px;
   }
   #val-patch + .spec-doc {
diff --git a/src/dream.ml b/src/dream.ml
index c973a0c2..4e806dd5 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -153,6 +153,7 @@ let set_body = Message.set_body
 (* Streams *)
 
 type stream = Stream.stream
+let body_stream = Message.server_stream
 let stream = Helpers.stream
 let read = Message.read
 let write = Message.write
@@ -177,6 +178,8 @@ let abort_stream = Stream.abort
 
 type websocket = stream * stream
 let websocket = Helpers.websocket
+type text_or_binary = [ `Text | `Binary ]
+type end_of_message = [ `End_of_message | `Continues ]
 let send = Helpers.send
 let receive = Helpers.receive
 let receive_fragment = Helpers.receive_fragment
diff --git a/src/dream.mli b/src/dream.mli
index 4d23a841..45c9dc48 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -569,8 +569,8 @@ https://aantron.github.io/dream/#val-with_header
     [c-cookie]} \[{{:http://dream.as/c-cookie} playground}\].
 
     {[
-      Dream.set_cookie "my.cookie" "foo" request response
-      Dream.cookie "my.cookie" request
+      Dream.set_cookie response request "my.cookie" "foo"
+      Dream.cookie request "my.cookie"
     ]}
 
     The {!Dream.cookie} call evaluates to [Some "foo"], but the actual cookie
@@ -595,12 +595,12 @@ val set_cookie :
   ?secure:bool ->
   ?http_only:bool ->
   ?same_site:[< `Strict | `Lax | `None ] option ->
-    response -> string -> string -> request -> unit
+    response -> request -> string -> string -> unit
 (** Appends a [Set-Cookie:] header to the {!type-response}. Infers the most
     secure defaults from the {!type-request}.
 
     {[
-      Dream.set_cookie "my.cookie" "value" request response
+      Dream.set_cookie request response "my.cookie" "value"
     ]}
 
     Specify {!Dream.run} argument [~secret], or the Web app will not be able to
@@ -679,12 +679,12 @@ val set_cookie :
    ?secure:bool ->
    ?http_only:bool ->
    ?same_site:[< `Strict | `Lax | `None ] option ->
-     response -> string -> request -> unit
+     response -> request -> string -> unit
 (** Deletes the given cookie.
 
     This function works by calling {!Dream.set_cookie}, and setting the cookie
     to expire in the past. Pass all the same optional values that you would pass
-    to {!Dream.set_cookie}, to make sure that the same cookie is deleted. *)
+    to {!Dream.set_cookie} to make sure that the same cookie is deleted. *)
 
 val cookie :
   ?prefix:[< `Host | `Secure ] option ->
@@ -698,7 +698,7 @@ val cookie :
     [c-cookie]}.
 
     {[
-      Dream.cookie "my.cookie" request
+      Dream.cookie request "my.cookie"
     ]}
 
     Pass the same optional arguments as to {!Dream.set_cookie} for the same
@@ -734,29 +734,30 @@ https://aantron.github.io/dream/#val-set_body
 (** {1 Streams} *)
 
 type stream
-(* TODO Document. *)
+(** Gradual reading of request bodies or gradual writing of response bodies. *)
+
+val body_stream : request -> stream
+(** A stream that can be used to gradually read the request's body. *)
 
 val stream :
   ?status:[< status ] ->
   ?code:int ->
   ?headers:(string * string) list ->
     (stream -> unit promise) -> response promise
-(** Same as {!Dream.val-respond}, but calls {!Dream.set_stream} internally to
-    prepare the response for stream writing, and then runs the callback
-    asynchronously to do it. See example
+(** Creates a response with a {!type-stream} open for writing, and passes the
+    stream to the callback when it is ready. See example
     {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
     [j-stream]}.
 
     {[
       fun request ->
-        Dream.stream (fun response ->
-          let%lwt () = Dream.write response "foo" in
-          Dream.close_stream response)
+        Dream.stream (fun stream ->
+          let%lwt () = Dream.write stream "foo" in
+          Dream.close stream)
     ]} *)
 
 val read : stream -> string option promise
-(** Retrieves a body chunk. The chunk is not buffered, thus it can only be read
-    once. See example
+(** Retrieves a body chunk. See example
     {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
     [j-stream]}. *)
 (* TODO Document difference between receiving a request and receiving on a
@@ -776,13 +777,14 @@ val write : stream -> string -> unit promise
 (* TODO Document clearly which of the writing functions can raise exceptions. *)
 
 val flush : stream -> unit promise
-(** Flushes write buffers. Data is sent to the client. *)
+(** Flushes the stream's write buffer. Data is sent to the client. *)
 
 val close : stream -> unit promise
-(** Finishes the response stream. *)
-(* TODO Fix comment. *)
+(** Closes the stream. *)
+
+(** {2 Low-level streaming}
 
-(** {2 Low-level streaming} *)
+    Note: this part of the API is still a work in progress. *)
 
 type buffer =
   (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
@@ -797,19 +799,6 @@ type buffer =
     - {{:https://github.com/mirage/ocaml-cstruct/blob/9a8b9a79bdfa2a1b8455bc26689e0228cc6fac8e/lib/cstruct.mli#L139}
       [Cstruct.buffer]} in Cstruct. *)
 
-(* TODO What should the body stream retrieval function be called? *)
-(* TODO Remove old functions from signature. *)
-(* TODO Should there be a section for this somewhere? Probably "low-level
-   streaming" should be promoted to a top-level section, Streaming. *)
-
-val client_stream : 'a message -> stream
-val server_stream : 'a message -> stream
-(* TODO Document that this is for middlewares that are transforming a response
-   stream or a WebSocket. *)
-val set_client_stream : response -> stream -> unit
-(* TODO Normalize with with_stream, or add a separate with_server_stream. *)
-val set_server_stream : request -> stream -> unit
-
 (* TODO Probably even close can be made optional. exn can be made optional. *)
 (* TODO Argument order? *)
 val read_stream :
@@ -823,28 +812,75 @@ val read_stream :
     unit
 (** Waits for the next stream event, and calls:
 
-    - [~buffer] with an offset and length, if a {!type-buffer} is written,
-    - [~close] if close is requested, and
+    - [~data] with an offset and length, if a {!type-buffer} is received,
+    ~ [~flush] if a flush request is received,
+    - [~ping] if a ping is received (WebSockets only),
+    - [~pong] if a pong is received (WebSockets only),
+    - [~close] if the stream is closed, and
     - [~exn] to report an exception. *)
 
 val write_stream :
-  stream -> buffer -> int -> int -> bool -> bool -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
+  stream ->
+  buffer -> int -> int ->
+  bool -> bool ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
+  (unit -> unit) ->
+    unit
+(** Writes a {!type-buffer} into the stream:
+
+    {[
+      write_stream stream buffer offset length binary fin ~close ~exn callback
+    ]}
+
+    [write_stream] calls one of its three callback functions, depending on what
+    happens with the write:
+
+    - [~close] if the stream is closed before the write completes,
+    - [~exn] to report an exception during or before the write,
+    - [callback] to report that the write has succeeded and the stream can
+      accept another write.
+
+    [binary] and [fin] are for WebSockets only. [binary] marks the stream as
+    containing binary (non-text) data, and [fin] sets the [FIN] bit, indicating
+    the end of a message. These two parameters are ignored by non-WebSocket
+    streams. *)
 
 val flush_stream :
-  stream -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
+  stream ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
+  (unit -> unit) ->
+    unit
+(** Requests the stream be flushed. The callbacks have the same meaning as in
+    {!write_stream}. *)
 
 val ping_stream :
-  stream -> buffer -> int -> int -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
+  stream ->
+  buffer -> int -> int ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
+  (unit -> unit) ->
+    unit
+(** Sends a ping frame on the WebSocket stream. The buffer is typically empty,
+    but may contain up to 125 bytes of data. *)
 
 val pong_stream :
-  stream -> buffer -> int -> int -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
+  stream ->
+  buffer -> int -> int ->
+  close:(int -> unit) ->
+  exn:(exn -> unit) ->
+  (unit -> unit) ->
+    unit
+(** Like {!ping_stream}, but sends a pong event. *)
 
-val close_stream :
-  stream -> int -> unit
+val close_stream : stream -> int -> unit
+(** Closes the stream. The integer parameter is a WebSocket close code, and is
+    ignored by non-WebSocket streams. *)
 
-val abort_stream :
-  stream -> exn -> unit
-(* TODO Line widths above. *)
+val abort_stream : stream -> exn -> unit
+(** Aborts the stream, causing all readers and writers to receive the given
+    exception. *)
 
 (**/**)
 val write_buffer :
@@ -882,27 +918,38 @@ val websocket :
           Dream.close_websocket websocket);
     ]} *)
 
+type text_or_binary = [ `Text | `Binary ]
+(** See {!send} and {!receive_fragment}. *)
+
+type end_of_message = [ `End_of_message | `Continues ]
+(** See {!send} and {!receive_fragment}. *)
+
 val send :
-  ?text_or_binary:[< `Text | `Binary ] ->
-  ?end_of_message:[< `End_of_message | `Continues ] ->
+  ?text_or_binary:[< text_or_binary ] ->
+  ?end_of_message:[< end_of_message ] ->
     websocket -> string -> unit promise
-(** Sends a single message. The WebSocket is ready another message when the
-    promise resolves.
+(** Sends a single WebSocket message. The WebSocket is ready another message
+    when the promise resolves.
 
-    With [~kind:`Text], the default, the message is interpreted as a UTF-8
-    string. The client will receive it transcoded to JavaScript's UTF-16
+    With [~text_or_binary:`Text], the default, the message is interpreted as a
+    UTF-8 string. The client will receive it transcoded to JavaScript's UTF-16
     representation.
 
-    With [~kind:`Binary], the message will be received unmodified, as either a
-    [Blob] or an [ArrayBuffer]. See
+    With [~text_or_binary:`Binary], the message will be received unmodified, as
+    either a [Blob] or an [ArrayBuffer]. See
     {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/binaryType}
-    MDN, [WebSocket.binaryType]}. *)
+    MDN, [WebSocket.binaryType]}.
+
+    [~end_of_message] is ignored for now, as the WebSocket library underlying
+    Dream does not support sending message fragments yet. *)
 
 val receive : websocket -> string option promise
-(** Retrieves a message. If the WebSocket is closed before a complete message
+(** Receives a message. If the WebSocket is closed before a complete message
     arrives, the result is [None]. *)
 
-val receive_fragment : websocket -> (string * [ `Text | `Binary ] * [ `End_of_message | `Continues ]) option promise
+val receive_fragment :
+  websocket -> (string * text_or_binary * end_of_message) option promise
+(** Receives a single fragment of a message, streaming it. *)
 
 val close_websocket : ?code:int -> websocket -> unit promise
 (** Closes the WebSocket. [~code] is usually not necessary, but is needed for
@@ -1357,6 +1404,31 @@ Dream.pipeline [middleware_1; middleware_2] @@ handler
                middleware_1 @@ middleware_2 @@ handler
     v} *)
 
+(* TODO Need a way to create fresh streams. *)
+(** {2 Stream transformers}
+
+    When writing a middleware that transforms a request body stream, use
+    {!server_stream} to retrieve the server's view of the body stream. Create a
+    new transformed stream (note: a function for doing this is not yet exposed),
+    and replace the request's server stream by your transformed stream with
+    {!set_server_stream}.
+
+    When transforming a response stream, replace the client stream instead. *)
+
+val client_stream : 'a message -> stream
+(** The stream that clients interact with. *)
+
+val server_stream : 'a message -> stream
+(** The stream that servers interact with. *)
+
+val set_client_stream : response -> stream -> unit
+(** Replaces the stream that the client will use when it receives the
+    response. *)
+
+val set_server_stream : request -> stream -> unit
+(** Replaces the stream that the server will use when it receives the
+    request. *)
+
 
 
 (** {1 Routing} *)
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 61cd5bbb..afd8357b 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -390,12 +390,20 @@ let receive stream =
   | None -> Lwt.return_none
   | Some (message, _) -> Lwt.return (Some message)
 
-let send
-    ?(text_or_binary = `Text) ?(end_of_message = `End_of_message) stream data =
-
+let send ?text_or_binary ?end_of_message stream data =
   let promise, resolver = Lwt.wait () in
-  let binary = text_or_binary = `Binary in
-  let fin = end_of_message = `End_of_message in
+  let binary =
+    match text_or_binary with
+    | Some `Binary -> true
+    | Some `Text -> false
+    | None -> false
+  in
+  let fin =
+    match end_of_message with
+    | Some `End_of_message -> true
+    | Some `Continues -> false
+    | None -> true
+  in
   let length = String.length data in
   let buffer = Bigstringaf.of_string ~off:0 ~len:length data in
   Stream.write
diff --git a/src/pure/message.mli b/src/pure/message.mli
index e66ee0f0..7ec6dfc4 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -102,8 +102,8 @@ val receive :
 val receive_fragment :
   Stream.stream -> (string * text_or_binary * end_of_message) option promise
 val send :
-  ?text_or_binary:text_or_binary ->
-  ?end_of_message:end_of_message ->
+  ?text_or_binary:[< text_or_binary ] ->
+  ?end_of_message:[< end_of_message ] ->
   Stream.stream ->
   string ->
     unit promise
diff --git a/src/server/cookie.ml b/src/server/cookie.ml
index fdb9e450..8ea7493e 100644
--- a/src/server/cookie.ml
+++ b/src/server/cookie.ml
@@ -86,9 +86,9 @@ let set_cookie
     ?(http_only = true)
     ?same_site
     response
+    request
     name
-    value
-    request =
+    value =
 
   (* TODO Need the site prefix, not the subsite prefix! *)
   let path =
@@ -135,7 +135,7 @@ let set_cookie
   Message.add_header response "Set-Cookie" set_cookie
 
 let drop_cookie
-    ?prefix ?domain ?path ?secure ?http_only ?same_site name request response =
+    ?prefix ?domain ?path ?secure ?http_only ?same_site response request name =
   set_cookie
     ?prefix ~encrypt:false ~expires:0. ?domain ?path ?secure ?http_only
-    ?same_site name "" request response
+    ?same_site response request name ""
diff --git a/src/server/flash.ml b/src/server/flash.ml
index 254c2567..dbec2ee9 100644
--- a/src/server/flash.ml
+++ b/src/server/flash.ml
@@ -83,7 +83,8 @@ let flash_messages inner_handler request =
     match existing, entries with
     | None, [] -> ()
     | Some _, [] ->
-      Cookie.set_cookie response flash_cookie "" request ~expires:0.
+      (* TODO Use drop_cookie? *)
+      Cookie.set_cookie response request flash_cookie "" ~expires:0.
     | _, _ ->
       let content =
         List.fold_right (fun (x,y) a -> `String x :: `String y :: a) entries []
@@ -99,6 +100,6 @@ let flash_messages inner_handler request =
           ()
       in
       Cookie.set_cookie
-        response flash_cookie value request ~max_age:five_minutes
+        response request flash_cookie value ~max_age:five_minutes
   in
   Lwt.return response
diff --git a/src/server/session.ml b/src/server/session.ml
index 45289987..57de3d74 100644
--- a/src/server/session.ml
+++ b/src/server/session.ml
@@ -180,7 +180,7 @@ struct
       let id = version_session_id !session.id in
       let max_age = !session.expires_at -. now () in
       Cookie.set_cookie
-        response session_cookie id request ~encrypt:false ~max_age
+        response request session_cookie id ~encrypt:false ~max_age
     end;
     Lwt.return response
 
@@ -300,7 +300,7 @@ struct
         |> Yojson.Basic.to_string
         |> version_value
       in
-      Cookie.set_cookie response session_cookie value request ~max_age
+      Cookie.set_cookie response request session_cookie value ~max_age
     end;
     Lwt.return response
 
diff --git a/src/sql/session.ml b/src/sql/session.ml
index 57b44929..86a4e9be 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -185,9 +185,9 @@ let send (operations, session) request response =
     let max_age = !session.Session.expires_at -. Unix.gettimeofday () in
     Cookie.set_cookie
       response
+      request
       Session.session_cookie
       id
-      request
       ~encrypt:false
       ~max_age
   end;

From 80b2f60a9294cbed622ca7264feaf9eb14bb2285 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 13:03:35 +0300
Subject: [PATCH 148/312] Catch up renamings and deprecations

---
 docs/web/postprocess/index.ml | 28 +++++---------------
 src/dream.ml                  | 10 +++++--
 src/dream.mli                 | 50 ++++++++++++++++++++++++++++++-----
 3 files changed, 58 insertions(+), 30 deletions(-)

diff --git a/docs/web/postprocess/index.ml b/docs/web/postprocess/index.ml
index f316fb99..ecde3db0 100644
--- a/docs/web/postprocess/index.ml
+++ b/docs/web/postprocess/index.ml
@@ -984,22 +984,6 @@ let verify_csrf_token_replacement = {|
 </pre>
 |}
 
-let form_tag_expected = {|<div class="spec value" id="val-form_tag">
- <a href="#val-form_tag" class="anchor"></a><code><span><span class="keyword">val</span> form_tag : <span>?method_:<span>[&lt; <a href="#type-method_">method_</a> ]</span> <span class="arrow">-&gt;</span></span> <span>?target:string <span class="arrow">-&gt;</span></span>
-<span>?enctype:<span>[&lt; `Multipart_form_data ]</span> <span class="arrow">-&gt;</span></span> <span>?csrf_token:bool <span class="arrow">-&gt;</span></span> <span>action:string <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> string</span></code>
-</div>
-|}
-
-let form_tag_replacement = {|
-<pre><span class="keyword">val</span> form_tag :
-  ?method_:[&lt; <a href="#type-method_">method_</a> ] ->
-  ?target:string ->
-  ?enctype:[&lt; `Multipart_form_data ] ->
-  ?csrf_token:bool ->
-    action:string -> <a href="#type-request">request</a> -> string
-</pre>
-|}
-
 let scope_expected = {|<div class="spec value" id="val-scope">
  <a href="#val-scope" class="anchor"></a><code><span><span class="keyword">val</span> scope : <span>string <span class="arrow">-&gt;</span></span> <span><span><a href="#type-middleware">middleware</a> list</span> <span class="arrow">-&gt;</span></span> <span><span><a href="#type-route">route</a> list</span> <span class="arrow">-&gt;</span></span> <a href="#type-route">route</a></span></code>
 </div>
@@ -1095,14 +1079,14 @@ let static_replacement = {|
 </pre>
 |}
 
-let set_session_expected = {|<div class="spec value" id="val-put_session">
- <a href="#val-put_session" class="anchor"></a><code><span><span class="keyword">val</span> put_session : <span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
+let set_session_expected = {|<div class="spec value" id="val-set_session_field">
+ <a href="#val-set_session_field" class="anchor"></a><code><span><span class="keyword">val</span> set_session_field : <span><a href="#type-request">request</a> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
 </div>
 |}
 
 let set_session_replacement = {|
-<pre><span class="keyword">val</span> put_session :
-  string -> string -> <a href="#type-request">request</a> -> unit <a href="#type-promise">promise</a>
+<pre><span class="keyword">val</span> set_session_field :
+  <a href="#type-request">request</a> -> string -> string -> unit <a href="#type-promise">promise</a>
 </pre>
 |}
 
@@ -1827,7 +1811,6 @@ let pretty_print_signatures soup =
     verify_csrf_token_expected
     verify_csrf_token_replacement;
 
-  multiline "#val-form_tag" form_tag_expected form_tag_replacement;
   multiline "#val-scope" scope_expected scope_replacement;
   replace "#val-get" get_expected get_replacement;
   replace "#val-post" post_expected post_replacement;
@@ -1838,7 +1821,8 @@ let pretty_print_signatures soup =
   replace "#val-patch" patch_expected patch_replacement;
   replace "#val-any" any_expected any_replacement;
   multiline "#val-static" static_expected static_replacement;
-  multiline "#val-put_session" set_session_expected set_session_replacement;
+  multiline "#val-set_session_field"
+    set_session_expected set_session_replacement;
   multiline "#val-websocket" websocket_expected websocket_replacement;
   multiline "#val-send" send_expected send_replacement;
   multiline "#val-close_websocket"
diff --git a/src/dream.ml b/src/dream.ml
index 4e806dd5..19faaba2 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -252,10 +252,14 @@ let mime_lookup = Static.mime_lookup
 
 
 (* Sessions *)
+(* TODO Internalize argument order and name changes. *)
 
 let session = Session.session
+let session_field request name = session name request
 let put_session = Session.put_session
+let set_session_field request name value = put_session name value request
 let all_session_values = Session.all_session_values
+let all_session_fields = all_session_values
 let invalidate_session = Session.invalidate_session
 let memory_sessions = Session.memory_sessions
 let cookie_sessions = Session.cookie_sessions
@@ -267,10 +271,12 @@ let session_expires_at = Session.session_expires_at
 
 
 (* Flash messages *)
+(* TODO Internalize argument order and name changes. *)
 
-let flash_messages = Flash.flash_messages
-let flash = Flash.flash
+let flash = Flash.flash_messages
+let flash_messages = Flash.flash
 let put_flash = Flash.put_flash
+let add_flash_message = Flash.put_flash
 
 
 
diff --git a/src/dream.mli b/src/dream.mli
index 45c9dc48..a231ba1e 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1340,12 +1340,17 @@ val csrf_tag : request -> string
     It is recommended to put the CSRF tag immediately after the starting
     [<form>] tag, to prevent certain kinds of DOM manipulation-based attacks. *)
 
+(**/**)
 val form_tag :
   ?method_:[< method_ ] ->
   ?target:string ->
   ?enctype:[< `Multipart_form_data ] ->
   ?csrf_token:bool ->
     action:string -> request -> string
+[@ocaml.deprecated
+"Use Dream.csrf_tag. See
+https://aantron.github.io/dream/#val-csrf_tag
+"]
 (** Generates a [<form>] tag and an [<input>] tag with a CSRF token, suitable
     for use with {!Dream.val-form} and {!Dream.val-multipart}. For example, in
     a template,
@@ -1373,6 +1378,7 @@ val form_tag :
     Pass [~enctype:`Multipart_form_data] for a file upload form.
 
     [~csrf_token:false] suppresses generation of the [dream.csrf] field. *)
+(**/**)
 
 
 
@@ -1637,16 +1643,40 @@ val mime_lookup : string -> (string * string) list
     {{:https://github.com/aantron/dream/tree/master/example/b-session#files}
     [b-session]} \[{{:http://dream.as/b-session} playground}\]. *)
 
-val session : string -> request -> string option
+val session_field : request -> string -> string option
 (** Value from the request's session. *)
 
-val put_session : string -> string -> request -> unit promise
+(**/**)
+val session : string -> request -> string option
+[@ocaml.deprecated
+"Renamed to Dream.session_field. See
+https://aantron.github.io/dream/#val-session_field
+"]
+(**/**)
+
+val set_session_field : request -> string -> string -> unit promise
 (** Mutates a value in the request's session. The back end may commit the value
     to storage immediately, so this function returns a promise. *)
 
-val all_session_values : request -> (string * string) list
+(**/**)
+val put_session : string -> string -> request -> unit promise
+[@ocaml.deprecated
+"Renamed to Dream.set_session_field. See
+https://aantron.github.io/dream/#val-set_session_field
+"]
+(**/**)
+
+val all_session_fields : request -> (string * string) list
 (** Full session dictionary. *)
 
+(**/**)
+val all_session_values : request -> (string * string) list
+[@ocaml.deprecated
+"Renamed to Dream.all_session_fields. See
+https://aantron.github.io/dream/#val-all_session_fields
+"]
+(**/**)
+
 val invalidate_session : request -> unit promise
 (** Invalidates the request's session, replacing it with a fresh, empty
     pre-session. *)
@@ -1695,15 +1725,23 @@ val session_expires_at : request -> float
     {{:https://github.com/aantron/dream/tree/master/example/w-flash#files}
     [w-flash]} \[{{:http://dream.as/w-flash} playground}\]. *)
 
-val flash_messages : middleware
+val flash : middleware
 (** Implements storing flash messages in cookies. *)
 
-val flash : request -> (string * string) list
+val flash_messages : request -> (string * string) list
 (** The request's flash messages. *)
 
-val put_flash : request -> string -> string -> unit
+val add_flash_message : request -> string -> string -> unit
 (** Adds a flash message to the request. *)
 
+(**/**)
+val put_flash : request -> string -> string -> unit
+[@@ocaml.deprecated
+"Renamed to Dream.add_flash_message. See
+https://aantron.github.io/dream/#val-add_flash_message
+"]
+(**/**)
+
 
 
 (** {1 GraphQL}

From 30ef8807089c5898607e619e4be0ca4d67e2f034 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 13:37:57 +0300
Subject: [PATCH 149/312] Update some of the examples

---
 example/3-router/README.md       |  2 +-
 example/7-template/README.md     |  2 +-
 example/8-debug/README.md        | 32 +++++++++++++++-------------
 example/9-error/README.md        | 36 ++++++++++----------------------
 example/b-session/README.md      |  6 +++---
 example/b-session/session.ml     |  4 ++--
 example/c-cookie/README.md       | 13 ++++++------
 example/c-cookie/cookie.ml       |  2 +-
 example/d-form/README.md         |  2 +-
 src/server/error_template.eml.ml |  2 +-
 10 files changed, 46 insertions(+), 55 deletions(-)

diff --git a/example/3-router/README.md b/example/3-router/README.md
index 70fd2c80..bb0465c5 100644
--- a/example/3-router/README.md
+++ b/example/3-router/README.md
@@ -20,7 +20,7 @@ let () =
 
     Dream.get "/echo/:word"
       (fun request ->
-        Dream.html (Dream.param "word" request));
+        Dream.html (Dream.param request "word"));
 
   ]
   @@ Dream.not_found
diff --git a/example/7-template/README.md b/example/7-template/README.md
index 4162f6c0..b942f71b 100644
--- a/example/7-template/README.md
+++ b/example/7-template/README.md
@@ -23,7 +23,7 @@ let () =
 
     Dream.get "/:word"
       (fun request ->
-        Dream.param "word" request
+        Dream.param request "word"
         |> render
         |> Dream.html);
 
diff --git a/example/8-debug/README.md b/example/8-debug/README.md
index fc3057af..be3a4058 100644
--- a/example/8-debug/README.md
+++ b/example/8-debug/README.md
@@ -2,12 +2,12 @@
 
 <br>
 
-Getting Dream to respond with more debug information is as easy as adding
-`~debug:true` to [`Dream.run`](https://aantron.github.io/dream/#val-run):
+Dream has a built-in error handler for showing debug information. You can enable
+it by passing it to `Dream.run`:
 
 ```ocaml
 let () =
-  Dream.run ~debug:true
+  Dream.run ~error_handler:Dream.debug_error_handler
   @@ Dream.logger
   @@ Dream.router [
 
@@ -38,31 +38,34 @@ response, and [http://localhost:8080/fail](http://localhost:8080/fail)
 debugger will show reports like this:
 
 ```
-(Failure "The Web app failed!")
-Raised at Stdlib__string.index_rec in file "string.ml", line 115, characters 19-34
-Called from Sexplib0__Sexp.Printing.index_of_newline in file "src/sexp.ml", line 113, characters 13-47
+Failure("The Web app failed!")
+Raised at Stdlib__map.Make.find in file "map.ml", line 137, characters 10-25
+Called from Logs.Tag.find in file "src/logs.ml", line 154, characters 14-32
 
 From: Application
 Blame: Server
 Severity: Error
 
-Client: 127.0.0.1:61988
+Client: 127.0.0.1:64687
 
 GET /fail HTTP/1.1
 Host: localhost:8080
 Connection: keep-alive
 Upgrade-Insecure-Requests: 1
-User-Agent: Mozilla/5.0 [...snip...]
-Accept: text/html,application/xhtml+xml, [...snip...]
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36
+Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
 Sec-GPC: 1
 Sec-Fetch-Site: none
 Sec-Fetch-Mode: navigate
 Sec-Fetch-User: ?1
 Sec-Fetch-Dest: document
 Accept-Encoding: gzip, deflate, br
-Accept-Language: en-US;q=0.9,en;q=0.8
+Accept-Language: en-US,en;q=0.9,ru-RU;q=0.8,ru;q=0.7
 
-dream.request_id.last_id: 2
+dream.client: 127.0.0.1:64687
+dream.https: false
+dream.request_id: 3
+dream.params:
 ```
 <!-- Get the request id in the list. -->
 
@@ -76,7 +79,7 @@ As you can see, the report includes:
 - `Severity:` a suggested log level for the error,
 - `Client:` the client address,
 - request headers,
-- any request-scoped and application-scoped variables set in the request.
+- any other request variables.
 
 <!-- TODO Link to the tutorial example on variables and also mention that they
      are advanced and usually internal. -->
@@ -91,8 +94,9 @@ work with in development.
 
 <br>
 
-Both the debugger's output and the non-debug error page are fully customizable
-&mdash; we will do this in the [very next example](../9-error#files)!
+You can have Dream show a custom error page with any information or graphics
+that you like &mdash; we will do this in the [very next
+example](../9-error#files)!
 
 <!-- TODO Fix after stack trace is fixed. -->
 <!-- TODO Show the log -->
diff --git a/example/9-error/README.md b/example/9-error/README.md
index beb7aa57..fdd1c21e 100644
--- a/example/9-error/README.md
+++ b/example/9-error/README.md
@@ -10,28 +10,21 @@ an `error_handler` is to call
 [`Dream.error_template`](https://aantron.github.io/dream/#val-error_template):
 
 ```ocaml
-let my_error_template debug_info suggested_response =
+let my_error_template _error debug_info suggested_response =
   let status = Dream.status suggested_response in
   let code = Dream.status_to_int status
   and reason = Dream.status_to_string status in
 
-  suggested_response
-  |> Dream.with_header "Content-Type" Dream.text_html
-  |> Dream.with_body begin
+  Dream.set_header suggested_response "Content-Type" Dream.text_html;
+  Dream.set_body suggested_response begin
     <html>
     <body>
       <h1><%i code %> <%s reason %></h1>
-
-%     begin match debug_info with
-%     | None -> ()
-%     | Some debug_info ->
-        <pre><%s debug_info %></pre>
-%     end;
-
+      <pre><%s debug_info %></pre>
     </body>
     </html>
-  end
-  |> Lwt.return
+  end;
+  Lwt.return suggested_response
 
 let () =
   Dream.run ~error_handler:(Dream.error_template my_error_template)
@@ -50,12 +43,6 @@ Try it in the [playground](http://dream.as/9-error).
 We kept the error template simple for the sake of the example, but this is
 where you'd put in neat graphics to make a beautiful error page!
 
-This app doesn't show debug information by default. However, try adding
-`~debug:true` to [`Dream.run`](https://aantron.github.io/dream/#val-run),
-rebuilding the app, and accessing it again. You will see the same kind of output
-as in example [**`8-debug`**](../8-debug#files), but now you control its
-placement and styling.
-
 <br>
 
 Dream will call the error template for every single error response it generates:
@@ -77,10 +64,8 @@ including return a completely new response.
 
 <br>
 
-`debug_info` is `None` by default. If you passed `~debug:true` to
-[`Dream.run`](https://aantron.github.io/dream/#val-run), it is `Some` of a
-string that contains the debug info that we saw in the previous example,
-[**`8-debug`**](../8-debug#files).
+`debug_info` is a multiline string containing the same information as in the
+previous example, [**`8-debug`**](../8-debug#files).
 
 <!-- TODO Images of the generated pages. -->
 
@@ -88,8 +73,9 @@ string that contains the debug info that we saw in the previous example,
 
 If you don't customize the error handler, Dream defaults to sending only empty
 responses, so that your application can be fully localization-friendly &mdash;
-even at the lowest levels. This is also in accordance with the [OWASP Error
-Handling Cheat
+even at the lowest levels. Rather than leaking hardcoded English strings, Dream
+relies on the user's browser to display its own built-in, localized error pages.
+This choice is also in accordance with the [OWASP Error Handling Cheat
 Sheet](https://cheatsheetseries.owasp.org/cheatsheets/Error_Handling_Cheat_Sheet.html).
 
 <br>
diff --git a/example/b-session/README.md b/example/b-session/README.md
index 8bab6403..cd35ebfe 100644
--- a/example/b-session/README.md
+++ b/example/b-session/README.md
@@ -11,10 +11,10 @@ let () =
   @@ Dream.memory_sessions
   @@ fun request ->
 
-    match Dream.session "user" request with
+    match Dream.session_field request "user" with
     | None ->
       let%lwt () = Dream.invalidate_session request in
-      let%lwt () = Dream.put_session "user" "alice" request in
+      let%lwt () = Dream.set_session_field request "user" "alice" in
       Dream.html "You weren't logged in; but now you are!"
 
     | Some username ->
@@ -67,7 +67,7 @@ There are two other session back ends, which are persistent:
   [`Dream.run`](https://aantron.github.io/dream/#val-run) so that it doesn't
   generate a random key each time.
 - [`Dream.sql_sessions`](https://aantron.github.io/dream/#val-sql_sessions)
-  stores sessions in a database. It's used in example
+  stores sessions in a database. It is shown in example
   [**`h-sql`**](../h-sql#files).
 
 <br>
diff --git a/example/b-session/session.ml b/example/b-session/session.ml
index b1d981b5..8a0c0458 100644
--- a/example/b-session/session.ml
+++ b/example/b-session/session.ml
@@ -4,10 +4,10 @@ let () =
   @@ Dream.memory_sessions
   @@ fun request ->
 
-    match Dream.session "user" request with
+    match Dream.session_field request "user" with
     | None ->
       let%lwt () = Dream.invalidate_session request in
-      let%lwt () = Dream.put_session "user" "alice" request in
+      let%lwt () = Dream.set_session_field request "user" "alice" in
       Dream.html "You weren't logged in; but now you are!"
 
     | Some username ->
diff --git a/example/c-cookie/README.md b/example/c-cookie/README.md
index b9b0e906..a6c00f9f 100644
--- a/example/c-cookie/README.md
+++ b/example/c-cookie/README.md
@@ -6,20 +6,21 @@ Let's [set our own cookie](https://aantron.github.io/dream/#cookies):
 
 ```ocaml
 let () =
-  Dream.run ~secret:"foo"
+  Dream.run
+  @@ Dream.set_secret "foo"
   @@ Dream.logger
   @@ fun request ->
 
-    match Dream.cookie "ui.language" request with
+    match Dream.cookie request "ui.language" with
     | Some value ->
       Printf.ksprintf
         Dream.html "Your preferred language is %s!" (Dream.html_escape value)
 
     | None ->
-      Dream.response "Set language preference; come again!"
-      |> Dream.add_header "Content-Type" Dream.text_html
-      |> Dream.set_cookie "ui.language" "ut-OP" request
-      |> Lwt.return
+      let response = Dream.response "Set language preference; come again!" in
+      Dream.add_header response "Content-Type" Dream.text_html;
+      Dream.set_cookie response request "ui.language" "ut-OP";
+      Lwt.return response
 ```
 
 <pre><code><b>$ cd example/c-cookie</b>
diff --git a/example/c-cookie/cookie.ml b/example/c-cookie/cookie.ml
index 73435ada..e145e5ee 100644
--- a/example/c-cookie/cookie.ml
+++ b/example/c-cookie/cookie.ml
@@ -12,5 +12,5 @@ let () =
     | None ->
       let response = Dream.response "Set language preference; come again!" in
       Dream.add_header response "Content-Type" Dream.text_html;
-      Dream.set_cookie response "ui.language" "ut-OP" request;
+      Dream.set_cookie response request "ui.language" "ut-OP";
       Lwt.return response
diff --git a/example/d-form/README.md b/example/d-form/README.md
index 0e7327bf..926133af 100644
--- a/example/d-form/README.md
+++ b/example/d-form/README.md
@@ -16,7 +16,7 @@ let show_form ?message request =
       <p>You entered: <b><%s message %>!</b></p>
 %   end;
 
-    <form action="/" method="post">
+    <form method="POST" action="/">
       <%s! Dream.csrf_tag request %>
       <input name="message" autofocus>
     </form>
diff --git a/src/server/error_template.eml.ml b/src/server/error_template.eml.ml
index b55bb40c..ba6c666a 100644
--- a/src/server/error_template.eml.ml
+++ b/src/server/error_template.eml.ml
@@ -66,7 +66,7 @@ let render ~debug_dump ~code ~reason =
       <h2><%i code %> <%s reason %></h2>
       <p>
         This error page has been generated by Dream's error handler.<br />
-        Make sure to turn debugging mode off when deploying your application in
+        Remember to turn debugging mode off when deploying your application in
         production.
       </p>
       <h3>Debug Dump</h3>

From 7320f875d14c5aaa08cb6930308e5972012780bc Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 13:50:24 +0300
Subject: [PATCH 150/312] Rename ~https to ~tls

---
 docs/web/postprocess/index.ml       |  8 ++++----
 example/8-debug/README.md           |  2 +-
 src/dream.ml                        |  2 +-
 src/dream.mli                       | 18 +++++++++---------
 src/http/http.ml                    | 22 +++++++++++-----------
 src/server/cookie.ml                |  4 ++--
 src/server/helpers.ml               | 16 ++++++++--------
 src/server/origin_referrer_check.ml |  4 ++--
 8 files changed, 38 insertions(+), 38 deletions(-)

diff --git a/docs/web/postprocess/index.ml b/docs/web/postprocess/index.ml
index ecde3db0..f028d57f 100644
--- a/docs/web/postprocess/index.ml
+++ b/docs/web/postprocess/index.ml
@@ -1454,7 +1454,7 @@ let new_global_replacement = {|
 
 let run_expected = {|<div class="spec value" id="val-run">
  <a href="#val-run" class="anchor"></a><code><span><span class="keyword">val</span> run : <span>?interface:string <span class="arrow">-&gt;</span></span> <span>?port:int <span class="arrow">-&gt;</span></span> <span>?stop:<span>unit <a href="#type-promise">promise</a></span> <span class="arrow">-&gt;</span></span> <span>?error_handler:<a href="#type-error_handler">error_handler</a> <span class="arrow">-&gt;</span></span>
-<span>?https:bool <span class="arrow">-&gt;</span></span> <span>?certificate_file:string <span class="arrow">-&gt;</span></span> <span>?key_file:string <span class="arrow">-&gt;</span></span> <span>?builtins:bool <span class="arrow">-&gt;</span></span>
+<span>?tls:bool <span class="arrow">-&gt;</span></span> <span>?certificate_file:string <span class="arrow">-&gt;</span></span> <span>?key_file:string <span class="arrow">-&gt;</span></span> <span>?builtins:bool <span class="arrow">-&gt;</span></span>
 <span>?greeting:bool <span class="arrow">-&gt;</span></span> <span>?adjust_terminal:bool <span class="arrow">-&gt;</span></span> <span><a href="#type-handler">handler</a> <span class="arrow">-&gt;</span></span> unit</span></code>
 </div>
 |}
@@ -1468,7 +1468,7 @@ let run_replacement = {|
   ?secret:string ->
   ?old_secrets:string list ->
   ?prefix:string ->
-  ?https:true ->
+  ?tls:bool ->
   ?certificate_file:string ->
   ?key_file:string ->
   ?builtins:bool ->
@@ -1479,7 +1479,7 @@ let run_replacement = {|
 
 let serve_expected = {|<div class="spec value" id="val-serve">
  <a href="#val-serve" class="anchor"></a><code><span><span class="keyword">val</span> serve : <span>?interface:string <span class="arrow">-&gt;</span></span> <span>?port:int <span class="arrow">-&gt;</span></span> <span>?stop:<span>unit <a href="#type-promise">promise</a></span> <span class="arrow">-&gt;</span></span> <span>?error_handler:<a href="#type-error_handler">error_handler</a> <span class="arrow">-&gt;</span></span>
-<span>?https:bool <span class="arrow">-&gt;</span></span> <span>?certificate_file:string <span class="arrow">-&gt;</span></span> <span>?key_file:string <span class="arrow">-&gt;</span></span> <span>?builtins:bool <span class="arrow">-&gt;</span></span>
+<span>?tls:bool <span class="arrow">-&gt;</span></span> <span>?certificate_file:string <span class="arrow">-&gt;</span></span> <span>?key_file:string <span class="arrow">-&gt;</span></span> <span>?builtins:bool <span class="arrow">-&gt;</span></span>
 <span><a href="#type-handler">handler</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span></span></code>
 </div>
 |}
@@ -1493,7 +1493,7 @@ let serve_replacement = {|
   ?secret:string ->
   ?old_secrets:string list ->
   ?prefix:string ->
-  ?https:bool ->
+  ?tls:bool ->
   ?certificate_file:string ->
   ?key_string:string ->
   ?builtins:bool -></span>
diff --git a/example/8-debug/README.md b/example/8-debug/README.md
index be3a4058..682600ce 100644
--- a/example/8-debug/README.md
+++ b/example/8-debug/README.md
@@ -63,7 +63,7 @@ Accept-Encoding: gzip, deflate, br
 Accept-Language: en-US,en;q=0.9,ru-RU;q=0.8,ru;q=0.7
 
 dream.client: 127.0.0.1:64687
-dream.https: false
+dream.tls: false
 dream.request_id: 3
 dream.params:
 ```
diff --git a/src/dream.ml b/src/dream.ml
index 19faaba2..3e3db2ce 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -96,7 +96,7 @@ include Status
 (* Requests *)
 
 let client = Helpers.client
-let https = Helpers.https
+let tls = Helpers.tls
 let method_ = Message.method_
 let target = Message.target
 let prefix = Router.prefix
diff --git a/src/dream.mli b/src/dream.mli
index a231ba1e..faee2600 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -360,8 +360,8 @@ val normalize_status : [< status ] -> status
 val client : request -> string
 (** Client sending the request. For example, ["127.0.0.1:56001"]. *)
 
-val https : request -> bool
-(** Whether the request was sent over HTTPS. *)
+val tls : request -> bool
+(** Whether the request was sent over a TLS connection. *)
 
 val method_ : request -> method_
 (** Request method. For example, [`GET]. *)
@@ -651,7 +651,7 @@ val set_cookie :
       {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Path_attribute}
       MDN}.
     - [~secure] sets the [Secure] attribute. By default, [Secure] is set if
-      {!Dream.https} is [true] for the {!type-request}. See
+      {!Dream.tls} is [true] for the {!type-request}. See
       {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.5}
       RFC 6265bis §4.1.2.5} and
       {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#restrict_access_to_cookies}
@@ -2208,7 +2208,7 @@ val run :
   ?port:int ->
   ?stop:unit promise ->
   ?error_handler:error_handler ->
-  ?https:bool ->
+  ?tls:bool ->
   ?certificate_file:string ->
   ?key_file:string ->
   ?builtins:bool ->
@@ -2238,8 +2238,8 @@ val run :
       low-level errors. See {!section-errors} and example
       {{:https://github.com/aantron/dream/tree/master/example/9-error#files}
       [9-error]} \[{{:http://dream.as/9-error} playground}\].
-    - [~https:true] enables HTTPS. You should also specify [~certificate_file]
-      and [~key_file]. However, for development, Dream includes an insecure
+    - [~tls:true] enables TLS. You should also specify [~certificate_file] and
+      [~key_file]. However, for development, Dream includes an insecure
       compiled-in
       {{:https://github.com/aantron/dream/tree/master/src/certificate#files}
       localhost certificate}. Enabling HTTPS also enables transparent upgrading
@@ -2247,9 +2247,9 @@ val run :
       {{:https://github.com/aantron/dream/tree/master/example/l-https#files}
       [l-https]}.
     - [~certificate_file] and [~key_file] specify the certificate and key file,
-      respectively, when using [~https]. They are not required for development,
+      respectively, when using [~tls]. They are not required for development,
       but are required for production. Dream will write a warning to the log if
-      you are using [~https], don't provide [~certificate_file] and [~key_file],
+      you are using [~tls], don't provide [~certificate_file] and [~key_file],
       and [~interface] is not ["localhost"].
     - [~builtins:false] disables {!section-builtin}.
 
@@ -2267,7 +2267,7 @@ val serve :
   ?port:int ->
   ?stop:unit promise ->
   ?error_handler:error_handler ->
-  ?https:bool ->
+  ?tls:bool ->
   ?certificate_file:string ->
   ?key_file:string ->
   ?builtins:bool ->
diff --git a/src/http/http.ml b/src/http/http.ml
index 6b91da3a..def04770 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -52,7 +52,7 @@ let websocket_log =
    chance to tell the user that something is wrong with their app. *)
 (* TODO Rename conn like in the body branch. *)
 let wrap_handler
-    https
+    tls
     (user's_error_handler : Catch.error_handler)
     (user's_dream_handler : Message.handler) =
 
@@ -96,7 +96,7 @@ let wrap_handler
       Stream.stream body Stream.no_writer in
 
     let request : Message.request =
-      Helpers.request ~client ~method_ ~target ~https ~version ~headers body in
+      Helpers.request ~client ~method_ ~target ~tls ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -188,7 +188,7 @@ let wrap_handler
 
 (* TODO Factor out what is in common between the http/af and h2 handlers. *)
 let wrap_handler_h2
-    https
+    tls
     (_user's_error_handler : Catch.error_handler)
     (user's_dream_handler : Message.handler) =
 
@@ -226,7 +226,7 @@ let wrap_handler_h2
       Stream.stream body Stream.no_writer in
 
     let request : Message.request =
-      Helpers.request ~client ~method_ ~target ~https ~version ~headers body in
+      Helpers.request ~client ~method_ ~target ~tls ~version ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -483,7 +483,7 @@ let serve_with_maybe_https
     ~port
     ~stop
     ~error_handler
-    ~https
+    ~tls
     ?certificate_file ?key_file
     ?certificate_string ?key_string
     ~builtins
@@ -500,7 +500,7 @@ let serve_with_maybe_https
     end; *)
     (* TODO Make sure there is a similar check in cipher.ml now.Hpack *)
 
-    match https with
+    match tls with
     | `No ->
       serve_with_details
         caller_function_for_error_messages
@@ -632,7 +632,7 @@ let serve
     ?(port = default_port)
     ?(stop = never)
     ?(error_handler = Error_handler.default)
-    ?(https = false)
+    ?(tls = false)
     ?certificate_file
     ?key_file
     ?(builtins = true)
@@ -644,7 +644,7 @@ let serve
     ~port
     ~stop
     ~error_handler
-    ~https:(if https then `OpenSSL else `No)
+    ~tls:(if tls then `OpenSSL else `No)
     ?certificate_file
     ?key_file
     ?certificate_string:None
@@ -659,7 +659,7 @@ let run
     ?(port = default_port)
     ?(stop = never)
     ?(error_handler = Error_handler.default)
-    ?(https = false)
+    ?(tls = false)
     ?certificate_file
     ?key_file
     ?(builtins = true)
@@ -713,7 +713,7 @@ let run
 
   if greeting then begin
     let scheme =
-      if https then
+      if tls then
         "https"
       else
         "http"
@@ -736,7 +736,7 @@ let run
         ~port
         ~stop
         ~error_handler
-        ~https:(if https then `OpenSSL else `No)
+        ~tls:(if tls then `OpenSSL else `No)
         ?certificate_file ?key_file
         ?certificate_string:None ?key_string:None
         ~builtins
diff --git a/src/server/cookie.ml b/src/server/cookie.ml
index 8ea7493e..31a34f05 100644
--- a/src/server/cookie.ml
+++ b/src/server/cookie.ml
@@ -56,7 +56,7 @@ let cookie
   let secure =
     match secure with
     | Some secure -> secure
-    | None -> Helpers.https request
+    | None -> Helpers.tls request
   in
 
   let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
@@ -100,7 +100,7 @@ let set_cookie
   let secure =
     match secure with
     | Some secure -> secure
-    | None -> Helpers.https request
+    | None -> Helpers.tls request
   in
 
   let cookie_prefix = infer_cookie_prefix cookie_prefix domain path secure in
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index b327580f..e3d339f6 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -30,28 +30,28 @@ let set_client request client =
 
 
 
-let https_field =
+let tls_field =
   Message.new_field
-    ~name:"dream.https"
+    ~name:"dream.tls"
     ~show_value:string_of_bool
     ()
 
-let https request =
-  match Message.field request https_field with
+let tls request =
+  match Message.field request tls_field with
   | Some true -> true
   | _ -> false
 
-let set_https request https =
-  Message.set_field request https_field https
+let set_tls request tls =
+  Message.set_field request tls_field tls
 
 
 
-let request ~client ~method_ ~target ~https ~version ~headers server_stream =
+let request ~client ~method_ ~target ~tls ~version ~headers server_stream =
   let request =
     Message.request
       ~method_ ~target ~version ~headers Stream.null server_stream in
   set_client request client;
-  set_https request https;
+  set_tls request tls;
   request
 
 let request_with_body ?method_ ?target ?version ?headers body =
diff --git a/src/server/origin_referrer_check.ml b/src/server/origin_referrer_check.ml
index beb9fd55..f5177720 100644
--- a/src/server/origin_referrer_check.ml
+++ b/src/server/origin_referrer_check.ml
@@ -49,8 +49,8 @@ let origin_referrer_check inner_handler request =
 
         let schemes_match =
           match Uri.scheme origin_uri with
-          | Some "http" -> not (Helpers.https request)
-          | Some "https" -> Helpers.https request
+          | Some "http" -> not (Helpers.tls request)
+          | Some "https" -> Helpers.tls request
           | _ -> false
         in
 

From a365a1762e635b79eb87ef4c248b314241a3bc8f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 14:03:21 +0300
Subject: [PATCH 151/312] Routers are now handlers rather than middleware

---
 src/dream.mli                | 11 ++++-------
 src/server/router.ml         |  4 ++--
 src/server/router.mli        |  2 +-
 test/expect/server/router.ml | 20 ++++++++------------
 4 files changed, 15 insertions(+), 22 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index faee2600..d407328b 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1439,11 +1439,10 @@ val set_server_stream : request -> stream -> unit
 
 (** {1 Routing} *)
 
-val router : route list -> middleware
-(** Creates a router. Besides interpreting routes, a router is a middleware
-    which calls its next handler if none of its routes match the request. Route
-    components starting with [:] are parameters, which can be retrieved with
-    {!Dream.param}. See example
+val router : route list -> handler
+(** Creates a router. If none of the routes match the request, the router
+    returns {!Dream.not_found}. Route components starting with [:] are
+    parameters, which can be retrieved with {!Dream.param}. See example
     {{:https://github.com/aantron/dream/tree/master/example/3-router#files}
     [3-router]} \[{{:http://dream.as/3-router} playground}\].
 
@@ -1454,7 +1453,6 @@ val router : route list -> middleware
           Dream.get "/echo/:word" @@ fun request ->
             Dream.html (Dream.param "word" request);
         ]
-        @@ Dream.not_found
     ]}
 
     {!Dream.scope} is the main form of site composition. However, Dream also
@@ -1466,7 +1464,6 @@ val router : route list -> middleware
         @@ Dream.router [
           Dream.get "/static/**" @@ Dream.static "www/static";
         ]
-        @@ Dream.not_found
     ]}
 
     [**] causes the request's path to be trimmed by the route prefix, and the
diff --git a/src/server/router.ml b/src/server/router.ml
index a5170a72..09be5f85 100644
--- a/src/server/router.ml
+++ b/src/server/router.ml
@@ -232,7 +232,7 @@ let param request name =
 let router routes =
   let routes = List.flatten routes in
 
-  fun next_handler request ->
+  fun request ->
 
     (* TODO Probably unnecessary (because it's better to just convert this to a
        trie), but the method can be checked before descending down the route. *)
@@ -297,4 +297,4 @@ let router routes =
     try_routes
       params prefix path routes
       (fun handler request -> handler request)
-      (fun () -> next_handler request)
+      (fun () -> Helpers.not_found request)
diff --git a/src/server/router.mli b/src/server/router.mli
index e94855c2..66262613 100644
--- a/src/server/router.mli
+++ b/src/server/router.mli
@@ -28,7 +28,7 @@ val scope : string -> Message.middleware list -> route list -> route
 (* The middleware and the path parameter retriever. With respect to path
    parameters, the middleware is the setter, and the retriever is, of course,
    the getter. *)
-val router : route list -> Message.middleware
+val router : route list -> Message.handler
 val param : Message.request -> string -> string
 
 (* Variables used by the router. *)
diff --git a/test/expect/server/router.ml b/test/expect/server/router.ml
index d6e6c6c5..27b48c8a 100644
--- a/test/expect/server/router.ml
+++ b/test/expect/server/router.ml
@@ -92,8 +92,7 @@ let%expect_test _ =
 let show ?(prefix = "/") ?(method_ = `GET) target router =
   try
     Dream.request ~method_ ~target ""
-    |> Dream.test ~prefix
-      (router @@ fun _ -> Dream.respond ~status:`Not_Found "")
+    |> Dream.test ~prefix router
     |> fun response ->
       let body =
         Dream.client_stream response
@@ -349,9 +348,9 @@ let%expect_test _ =
     Dream.param: missing path parameter "x" |}]
 
 let%expect_test _ =
-  show "/" @@ (fun next_handler request ->
+  show "/" @@ (fun request ->
     ignore (Dream.param request "x");
-    next_handler request);
+    Dream.empty `Not_Found);
   [%expect {| Dream.param: missing path parameter "x" |}]
 
 (* Router respects site prefix. *)
@@ -525,7 +524,7 @@ let%expect_test _ =
 
 (* Router sequence works. *)
 
-let%expect_test _ =
+(* let%expect_test _ =
   show "/abc/def" @@ Dream.pipeline [
     Dream.router [
       Dream.get "/abc/ghi" (fun _ -> Dream.respond "first");
@@ -536,7 +535,7 @@ let%expect_test _ =
   ];
   [%expect {|
     Response: 200 OK
-    second |}]
+    second |}] *)
 
 (* Wildcard routes. *)
 
@@ -701,8 +700,7 @@ let%expect_test _ =
       |> Dream.router [
         Dream.get "/def" (fun request ->
           Dream.respond (Dream.prefix request ^ " " ^ path request));
-      ]
-      @@ (fun _ -> Dream.respond ~status:`Not_Found ""))
+      ])
   ];
   [%expect {|
     Response: 200 OK
@@ -719,8 +717,7 @@ let%expect_test _ =
             (Dream.param request "x")
             (Dream.param request "y")
             (path request));
-      ]
-      @@ (fun _ -> Dream.respond ~status:`Not_Found ""))
+      ])
   ];
   [%expect {|
     Response: 200 OK
@@ -736,8 +733,7 @@ let%expect_test _ =
             (Dream.prefix request)
             (Dream.param request "x")
             (path request));
-      ]
-      @@ (fun _ -> Dream.respond ~status:`Not_Found ""))
+      ])
   ];
   [%expect {|
     Response: 200 OK

From 940b07a78f4eb6599629ae683f62be5318cb1ca2 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 15:39:39 +0300
Subject: [PATCH 152/312] Update all examples

---
 example/3-router/README.md                    |  8 +-----
 example/3-router/router.ml                    |  1 -
 example/4-counter/README.md                   |  1 -
 example/4-counter/counter.ml                  |  1 -
 example/5-promise/README.md                   |  1 -
 example/5-promise/promise.ml                  |  1 -
 example/6-echo/README.md                      |  1 -
 example/6-echo/echo.ml                        |  1 -
 example/7-template/README.md                  |  1 -
 example/7-template/template.eml.ml            |  1 -
 example/8-debug/README.md                     |  1 -
 example/8-debug/debug.ml                      |  1 -
 example/a-log/README.md                       |  1 -
 example/a-log/log.ml                          |  1 -
 example/d-form/README.md                      |  1 -
 example/d-form/form.eml.ml                    |  3 +--
 example/e-json/README.md                      |  1 -
 example/e-json/json.ml                        |  1 -
 example/f-static/README.md                    |  1 -
 example/f-static/static.ml                    |  1 -
 example/g-upload/README.md                    |  8 +++---
 example/g-upload/upload.eml.ml                |  3 +--
 example/h-sql/README.md                       |  3 +--
 example/h-sql/sql.eml.ml                      |  3 +--
 example/i-graphql/README.md                   |  1 -
 example/i-graphql/graphql.ml                  |  1 -
 example/j-stream/README.md                    | 26 +++++++++----------
 example/j-stream/stream.ml                    | 26 +++++++++----------
 example/k-websocket/README.md                 |  1 -
 example/k-websocket/websocket.eml.ml          | 11 ++++----
 example/l-https/README.md                     |  4 +--
 example/l-https/https.ml                      |  2 +-
 example/r-advanced-template/README.md         |  9 +++----
 example/r-advanced-template/template.eml.re   |  3 +--
 example/r-fullstack-melange/README.md         |  3 +--
 .../r-fullstack-melange/server/server.eml.re  |  3 +--
 example/r-graphql/README.md                   |  3 +--
 example/r-graphql/graphql.re                  |  3 +--
 example/r-template-files/README.md            |  3 +--
 example/r-template-files/server.re            |  3 +--
 example/r-template/template.eml.re            |  3 +--
 example/r-tyxml/README.md                     |  3 +--
 example/r-tyxml/tyxml.re                      |  3 +--
 example/w-advanced-template/README.md         | 13 +++++-----
 example/w-advanced-template/template.eml.ml   |  1 -
 example/w-chat/README.md                      | 10 +++----
 example/w-chat/chat.eml.ml                    |  9 +++----
 example/w-content-security-policy/README.md   |  1 -
 .../content_security_policy.eml.ml            |  1 -
 example/w-flash/README.md                     |  9 +++----
 example/w-flash/flash.eml.ml                  |  9 +++----
 example/w-fullstack-jsoo/README.md            |  1 -
 example/w-fullstack-jsoo/server/server.eml.ml |  1 -
 example/w-fullstack-rescript/README.md        |  1 -
 .../w-fullstack-rescript/server/server.eml.ml |  1 -
 example/w-graphql-subscription/README.md      |  1 -
 .../graphql_subscription.ml                   |  1 -
 example/w-live-reload/README.md               |  1 -
 example/w-live-reload/live_reload.ml          |  5 ++--
 example/w-long-polling/long_polling.eml.ml    |  1 -
 .../w-multipart-dump/multipart_dump.eml.ml    |  3 +--
 example/w-nginx/README.md                     |  1 -
 example/w-nginx/server.eml.ml                 |  1 -
 example/w-one-binary/README.md                |  1 -
 example/w-one-binary/one_binary.ml            |  1 -
 example/w-postgres/README.md                  |  1 -
 example/w-postgres/postgres.eml.ml            |  3 +--
 .../server_sent_events.eml.ml                 |  9 +++----
 example/w-stress-response/stress_response.ml  | 11 ++++----
 .../stress_websocket_send.eml.ml              |  7 +++--
 example/w-template-files/README.md            |  1 -
 example/w-template-files/server.ml            |  1 -
 example/w-tyxml/README.md                     |  1 -
 example/w-tyxml/tyxml.ml                      |  1 -
 example/w-upload-stream/README.md             |  1 -
 example/w-upload-stream/upload_stream.eml.ml  |  1 -
 example/z-docker-esy/README.md                |  1 -
 example/z-docker-esy/app.ml                   |  1 -
 example/z-docker-opam/app.ml                  |  1 -
 example/z-fly/README.md                       |  3 +--
 example/z-fly/app.ml                          |  1 -
 example/z-heroku/README.md                    |  1 -
 example/z-heroku/app.ml                       |  1 -
 example/z-systemd/README.md                   |  1 -
 example/z-systemd/app.ml                      |  1 -
 85 files changed, 95 insertions(+), 183 deletions(-)

diff --git a/example/3-router/README.md b/example/3-router/README.md
index bb0465c5..d290181f 100644
--- a/example/3-router/README.md
+++ b/example/3-router/README.md
@@ -23,7 +23,6 @@ let () =
         Dream.html (Dream.param request "word"));
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/3-router</b>
@@ -42,12 +41,7 @@ The syntax `:word` in a route creates a path parameter, which can be read with
 
 <!-- TODO hyperlink Dream.param to docsc, also Dream.logger. -->
 
-[The whole router is a middleware](https://aantron.github.io/dream/#val-router),
-just like [`Dream.logger`](https://aantron.github.io/dream/#val-logger). When
-none of the routes match, the router passes the request to the next handler,
-which is right beneath it. In this example, we just respond with `404 Not
-Found` when that happens.
-
+When none of the routes match, the router returns a `404 Not Found` response.
 Except for the status code, the `404 Not Found` response is *completely* empty,
 so it might not display well in your browser. In example
 [**`9-error`**](../9-error#files), we will decorate all error responses with
diff --git a/example/3-router/router.ml b/example/3-router/router.ml
index 0c0c410f..fb1a9dab 100644
--- a/example/3-router/router.ml
+++ b/example/3-router/router.ml
@@ -12,4 +12,3 @@ let () =
         Dream.html (Dream.param request "word"));
 
   ]
-  @@ Dream.not_found
diff --git a/example/4-counter/README.md b/example/4-counter/README.md
index f976ed66..4c495ba6 100644
--- a/example/4-counter/README.md
+++ b/example/4-counter/README.md
@@ -22,7 +22,6 @@ let () =
     Dream.get "/" (fun _ ->
       Dream.html (Printf.sprintf "Saw %i request(s)!" !count));
   ]
-  @@ Dream.not_found
 ```
 <pre><code><b>$ cd example/4-counter</b>
 <b>$ npm install esy && npx esy</b>
diff --git a/example/4-counter/counter.ml b/example/4-counter/counter.ml
index 0f4c9d50..2a1d10ac 100644
--- a/example/4-counter/counter.ml
+++ b/example/4-counter/counter.ml
@@ -12,4 +12,3 @@ let () =
     Dream.get "/" (fun _ ->
       Dream.html (Printf.sprintf "Saw %i request(s)!" !count));
   ]
-  @@ Dream.not_found
diff --git a/example/5-promise/README.md b/example/5-promise/README.md
index 60110392..a8d932e3 100644
--- a/example/5-promise/README.md
+++ b/example/5-promise/README.md
@@ -38,7 +38,6 @@ let () =
         !successful !failed));
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/5-promise</b>
diff --git a/example/5-promise/promise.ml b/example/5-promise/promise.ml
index 34bc200c..ffa27902 100644
--- a/example/5-promise/promise.ml
+++ b/example/5-promise/promise.ml
@@ -27,4 +27,3 @@ let () =
         !successful !failed));
 
   ]
-  @@ Dream.not_found
diff --git a/example/6-echo/README.md b/example/6-echo/README.md
index c1f5f58f..f05ad376 100644
--- a/example/6-echo/README.md
+++ b/example/6-echo/README.md
@@ -18,7 +18,6 @@ let () =
         body);
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/6-echo</b>
diff --git a/example/6-echo/echo.ml b/example/6-echo/echo.ml
index fbdca6fe..4f63612c 100644
--- a/example/6-echo/echo.ml
+++ b/example/6-echo/echo.ml
@@ -10,4 +10,3 @@ let () =
         body);
 
   ]
-  @@ Dream.not_found
diff --git a/example/7-template/README.md b/example/7-template/README.md
index b942f71b..6103fa8b 100644
--- a/example/7-template/README.md
+++ b/example/7-template/README.md
@@ -28,7 +28,6 @@ let () =
         |> Dream.html);
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/7-template</b>
diff --git a/example/7-template/template.eml.ml b/example/7-template/template.eml.ml
index 27e7e351..f6cd751e 100644
--- a/example/7-template/template.eml.ml
+++ b/example/7-template/template.eml.ml
@@ -17,4 +17,3 @@ let () =
         |> Dream.html);
 
   ]
-  @@ Dream.not_found
diff --git a/example/8-debug/README.md b/example/8-debug/README.md
index 682600ce..fa68800e 100644
--- a/example/8-debug/README.md
+++ b/example/8-debug/README.md
@@ -20,7 +20,6 @@ let () =
         raise (Failure "The Web app failed!"));
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/8-debug</b>
diff --git a/example/8-debug/debug.ml b/example/8-debug/debug.ml
index b1aed12e..f7548a38 100644
--- a/example/8-debug/debug.ml
+++ b/example/8-debug/debug.ml
@@ -12,4 +12,3 @@ let () =
         raise (Failure "The Web app failed!"));
 
   ]
-  @@ Dream.not_found
diff --git a/example/a-log/README.md b/example/a-log/README.md
index ec33ce19..8423a93b 100644
--- a/example/a-log/README.md
+++ b/example/a-log/README.md
@@ -22,7 +22,6 @@ let () =
         raise (Failure "The Web app failed!"));
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/a-log</b>
diff --git a/example/a-log/log.ml b/example/a-log/log.ml
index 7afc7e21..457bf791 100644
--- a/example/a-log/log.ml
+++ b/example/a-log/log.ml
@@ -14,4 +14,3 @@ let () =
         raise (Failure "The Web app failed!"));
 
   ]
-  @@ Dream.not_found
diff --git a/example/d-form/README.md b/example/d-form/README.md
index 926133af..fb646cb9 100644
--- a/example/d-form/README.md
+++ b/example/d-form/README.md
@@ -43,7 +43,6 @@ let () =
           Dream.empty `Bad_Request);
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/d-form</b>
diff --git a/example/d-form/form.eml.ml b/example/d-form/form.eml.ml
index 16ac8131..40fe08fa 100644
--- a/example/d-form/form.eml.ml
+++ b/example/d-form/form.eml.ml
@@ -8,7 +8,7 @@ let show_form ?message request =
       <p>You entered: <b><%s message %>!</b></p>
 %   end;
 
-    <form action="/" method="post">
+    <form method="POST" action="/">
       <%s! Dream.csrf_tag request %>
       <input name="message" autofocus>
     </form>
@@ -35,4 +35,3 @@ let () =
           Dream.empty `Bad_Request);
 
   ]
-  @@ Dream.not_found
diff --git a/example/e-json/README.md b/example/e-json/README.md
index fc26a1cf..8857fc7d 100644
--- a/example/e-json/README.md
+++ b/example/e-json/README.md
@@ -35,7 +35,6 @@ let () =
         |> Dream.json);
 
   ]
-  @@ Dream.not_found
 ```
 
 To get this working, we have to add `ppx_yojson_conv` to our
diff --git a/example/e-json/json.ml b/example/e-json/json.ml
index fa8fad05..6fde9607 100644
--- a/example/e-json/json.ml
+++ b/example/e-json/json.ml
@@ -23,4 +23,3 @@ let () =
         |> Dream.json);
 
   ]
-  @@ Dream.not_found
diff --git a/example/f-static/README.md b/example/f-static/README.md
index 308296ef..da6bbf17 100644
--- a/example/f-static/README.md
+++ b/example/f-static/README.md
@@ -20,7 +20,6 @@ let () =
   @@ Dream.router [
     Dream.get "/static/**" (Dream.static ".")
   ]
-  @@ Dream.not_found
 ```
 
 <br>
diff --git a/example/f-static/static.ml b/example/f-static/static.ml
index 2ede0c2c..daf1c776 100644
--- a/example/f-static/static.ml
+++ b/example/f-static/static.ml
@@ -4,4 +4,3 @@ let () =
   @@ Dream.router [
     Dream.get "/static/**" (Dream.static ".")
   ]
-  @@ Dream.not_found
diff --git a/example/g-upload/README.md b/example/g-upload/README.md
index de859551..ede8c0d7 100644
--- a/example/g-upload/README.md
+++ b/example/g-upload/README.md
@@ -11,7 +11,7 @@ sizes:
 let home request =
   <html>
   <body>
-    <form action="/" method="post" enctype="multipart/form-data">
+    <form method="POST" action="/" enctype="multipart/form-data">
       <%s! Dream.csrf_tag request %>
       <input name="files" type="file" multiple>
       <button>Submit!</button>
@@ -48,7 +48,6 @@ let () =
       | _ -> Dream.empty `Bad_Request);
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/g-upload</b>
@@ -89,10 +88,11 @@ like [`Dream.form`](https://aantron.github.io/dream/#val-form) when it comes to
 See example [**`d-form`**](../d-form#files). We use
 [`Dream.csrf_tag`](https://aantron.github.io/dream/#val-csrf_tag) to generate
 the CSRF token in the template, and pass the `enctype="multipart/form-data"`
-attribute as needed for forms to upload files:
+attribute as needed for forms to upload files. The template output looks like
+this:
 
 ```html
-<form method="post" action="/" enctype="multipart/form-data">
+<form method="POST" action="/" enctype="multipart/form-data">
   <input name="dream.csrf" type="hidden" value="...">
 
   <!-- Our fields -->
diff --git a/example/g-upload/upload.eml.ml b/example/g-upload/upload.eml.ml
index e40cbc1e..2471a4ac 100644
--- a/example/g-upload/upload.eml.ml
+++ b/example/g-upload/upload.eml.ml
@@ -1,7 +1,7 @@
 let home request =
   <html>
   <body>
-    <form action="/" method="post" enctype="multipart/form-data">
+    <form method="POST" action="/" enctype="multipart/form-data">
       <%s! Dream.csrf_tag request %>
       <input name="files" type="file" multiple>
       <button>Submit!</button>
@@ -38,4 +38,3 @@ let () =
       | _ -> Dream.empty `Bad_Request);
 
   ]
-  @@ Dream.not_found
diff --git a/example/h-sql/README.md b/example/h-sql/README.md
index 4bd9bbea..32dc0ae7 100644
--- a/example/h-sql/README.md
+++ b/example/h-sql/README.md
@@ -35,7 +35,7 @@ let render comments request =
 %   comments |> List.iter (fun (_id, comment) ->
       <p><%s comment %></p><% ); %>
 
-    <form action="/" method="post">
+    <form method="POST" action="/">
       <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
@@ -63,7 +63,6 @@ let () =
         Dream.empty `Bad_Request);
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/h-sql</b>
diff --git a/example/h-sql/sql.eml.ml b/example/h-sql/sql.eml.ml
index 582ad660..6f2d8530 100644
--- a/example/h-sql/sql.eml.ml
+++ b/example/h-sql/sql.eml.ml
@@ -25,7 +25,7 @@ let render comments request =
 %   comments |> List.iter (fun (_id, comment) ->
       <p><%s comment %></p><% ); %>
 
-    <form action="/" method="post">
+    <form method="POST" action="/">
       <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
@@ -53,4 +53,3 @@ let () =
         Dream.empty `Bad_Request);
 
   ]
-  @@ Dream.not_found
diff --git a/example/i-graphql/README.md b/example/i-graphql/README.md
index 921cd6e6..f7678dda 100644
--- a/example/i-graphql/README.md
+++ b/example/i-graphql/README.md
@@ -55,7 +55,6 @@ let () =
     Dream.any "/graphql" (Dream.graphql Lwt.return schema);
     Dream.get "/" (Dream.graphiql ~default_query "/graphql");
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/i-graphql</b>
diff --git a/example/i-graphql/graphql.ml b/example/i-graphql/graphql.ml
index 27a68c7c..48c91874 100644
--- a/example/i-graphql/graphql.ml
+++ b/example/i-graphql/graphql.ml
@@ -43,4 +43,3 @@ let () =
     Dream.any "/graphql" (Dream.graphql Lwt.return schema);
     Dream.get "/" (Dream.graphiql ~default_query "/graphql");
   ]
-  @@ Dream.not_found
diff --git a/example/j-stream/README.md b/example/j-stream/README.md
index 7e9a4c64..ee5253f8 100644
--- a/example/j-stream/README.md
+++ b/example/j-stream/README.md
@@ -7,30 +7,28 @@ their whole bodies into memory, and then writing them. Here, we echo request
 bodies chunk by chunk:
 
 ```ocaml
-let echo request response =
-  let rec loop () =
-    match%lwt Dream.read request with
-    | None ->
-      Dream.close_stream response
-    | Some chunk ->
-      let%lwt () = Dream.write response chunk in
-      let%lwt () = Dream.flush response in
-      loop ()
-  in
-  loop ()
-
 let () =
   Dream.run
   @@ Dream.logger
   @@ Dream.router [
 
     Dream.post "/echo" (fun request ->
+      let request_stream = Dream.body_stream request in
       Dream.stream
         ~headers:["Content-Type", "application/octet-stream"]
-        (echo request));
+        (fun response_stream ->
+          let rec loop () =
+            match%lwt Dream.read request_stream with
+            | None ->
+              Dream.close response_stream
+            | Some chunk ->
+              let%lwt () = Dream.write response_stream chunk in
+              let%lwt () = Dream.flush response_stream in
+              loop ()
+          in
+          loop ()));
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/j-stream</b>
diff --git a/example/j-stream/stream.ml b/example/j-stream/stream.ml
index 3f9c2477..6080f1a8 100644
--- a/example/j-stream/stream.ml
+++ b/example/j-stream/stream.ml
@@ -1,24 +1,22 @@
-let echo request response =
-  let rec loop () =
-    match%lwt Dream.read request with
-    | None ->
-      Dream.close response
-    | Some chunk ->
-      let%lwt () = Dream.write response chunk in
-      let%lwt () = Dream.flush response in
-      loop ()
-  in
-  loop ()
-
 let () =
   Dream.run
   @@ Dream.logger
   @@ Dream.router [
 
     Dream.post "/echo" (fun request ->
+      let request_stream = Dream.body_stream request in
       Dream.stream
         ~headers:["Content-Type", "application/octet-stream"]
-        (echo request));
+        (fun response_stream ->
+          let rec loop () =
+            match%lwt Dream.read request_stream with
+            | None ->
+              Dream.close response_stream
+            | Some chunk ->
+              let%lwt () = Dream.write response_stream chunk in
+              let%lwt () = Dream.flush response_stream in
+              loop ()
+          in
+          loop ()));
 
   ]
-  @@ Dream.not_found
diff --git a/example/k-websocket/README.md b/example/k-websocket/README.md
index 341f1b40..d46853f7 100644
--- a/example/k-websocket/README.md
+++ b/example/k-websocket/README.md
@@ -47,7 +47,6 @@ let () =
             Dream.close_websocket websocket));
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/k-websocket</b>
diff --git a/example/k-websocket/websocket.eml.ml b/example/k-websocket/websocket.eml.ml
index 1166c93e..f61ac3e3 100644
--- a/example/k-websocket/websocket.eml.ml
+++ b/example/k-websocket/websocket.eml.ml
@@ -28,13 +28,12 @@ let () =
 
     Dream.get "/websocket"
       (fun _ ->
-        Dream.websocket (fun response ->
-          match%lwt Dream.read response with
+        Dream.websocket (fun websocket ->
+          match%lwt Dream.receive websocket with
           | Some "Hello?" ->
-            let%lwt () = Dream.write response "Good-bye!" in
-            Dream.close response
+            let%lwt () = Dream.send websocket "Good-bye!" in
+            Dream.close_websocket websocket
           | _ ->
-            Dream.close response));
+            Dream.close_websocket websocket));
 
   ]
-  @@ Dream.not_found
diff --git a/example/l-https/README.md b/example/l-https/README.md
index c9aa1da0..29f04fdd 100644
--- a/example/l-https/README.md
+++ b/example/l-https/README.md
@@ -2,12 +2,12 @@
 
 <br>
 
-Enabling HTTPS in Dream is very easy: just pass `~https:true` to
+Enabling HTTPS in Dream is very easy: just pass `~tls:true` to
 [`Dream.run`](https://aantron.github.io/dream/#val-run):
 
 ```ocaml
 let () =
-  Dream.run ~https:true
+  Dream.run ~tls:true
   @@ Dream.logger
   @@ fun _ -> Dream.html "Good morning, world!"
 ```
diff --git a/example/l-https/https.ml b/example/l-https/https.ml
index d9f4a077..d3a9c565 100644
--- a/example/l-https/https.ml
+++ b/example/l-https/https.ml
@@ -1,4 +1,4 @@
 let () =
-  Dream.run ~https:true
+  Dream.run ~tls:true
   @@ Dream.logger
   @@ fun _ -> Dream.html "Good morning, world!"
diff --git a/example/r-advanced-template/README.md b/example/r-advanced-template/README.md
index b12a78e2..552a0e3f 100644
--- a/example/r-advanced-template/README.md
+++ b/example/r-advanced-template/README.md
@@ -2,7 +2,7 @@
 
 <br>
 
-Dream templates allow for interleaving any control structures with your template code. This example shows how to do this with if statements, list iterations, and pattern matching. Although it may seem intuitive that the code somehow 'returns' the template, in reality the HTML generation happens in an imperative style. This means that any code within the template must evaluate to `unit`, and so the semicolons in this example are not optional. We use `List.iter` instead of `List.map` for a similar reason. 
+Dream templates allow for interleaving any control structures with your template code. This example shows how to do this with if statements, list iterations, and pattern matching. Although it may seem intuitive that the code somehow 'returns' the template, in reality the HTML generation happens in an imperative style. This means that any code within the template must evaluate to `unit`, and so the semicolons in this example are not optional. We use `List.iter` instead of `List.map` for a similar reason.
 
 ```reason
 let render_home = tasks => {
@@ -14,7 +14,7 @@ let render_home = tasks => {
         <% if (complete) { %>
           complete!
         <% } else { %>
-          not complete 
+          not complete
         <% }; %>
       </p>
     <% }); %>
@@ -28,7 +28,7 @@ let render_task = (tasks, task) => {
   <html>
   <body>
 %   (switch (List.find_opt(((task_, _)) => task == task_, tasks)) {
-%   | Some((name, complete)) => 
+%   | Some((name, complete)) =>
       <h1>TODO task: <%s name %>, complete: <%B complete %></h1>
 %   | None =>
       <h1>Task not found!</h1>
@@ -52,8 +52,7 @@ let () =
     Dream.get("/:task", request =>
       Dream.param("task", request) |> render_task(tasks) |> Dream.html
     ),
-  ])
-  @@ Dream.not_found;
+  ]);
 ```
 
 <pre><code><b>$ cd example/r-advanced-template</b>
diff --git a/example/r-advanced-template/template.eml.re b/example/r-advanced-template/template.eml.re
index 94ad8e49..71d6fb74 100644
--- a/example/r-advanced-template/template.eml.re
+++ b/example/r-advanced-template/template.eml.re
@@ -45,6 +45,5 @@ let () =
     Dream.get("/:task", request =>
       Dream.param(request, "task") |> render_task(tasks) |> Dream.html
     ),
-  ])
-  @@ Dream.not_found;
+  ]);
 
diff --git a/example/r-fullstack-melange/README.md b/example/r-fullstack-melange/README.md
index 41c455b7..851a2d3c 100644
--- a/example/r-fullstack-melange/README.md
+++ b/example/r-fullstack-melange/README.md
@@ -37,8 +37,7 @@ let () =
     Dream.get("/static/**",
       Dream.static("./static")),
 
-  ])
-  @@ Dream.not_found;
+  ]);
 ```
 
 ...and the client, in
diff --git a/example/r-fullstack-melange/server/server.eml.re b/example/r-fullstack-melange/server/server.eml.re
index c55429b6..98b2d3bd 100644
--- a/example/r-fullstack-melange/server/server.eml.re
+++ b/example/r-fullstack-melange/server/server.eml.re
@@ -18,5 +18,4 @@ let () =
     Dream.get("/static/**",
       Dream.static("./static")),
 
-  ])
-  @@ Dream.not_found;
+  ]);
diff --git a/example/r-graphql/README.md b/example/r-graphql/README.md
index 8730a973..605539f5 100644
--- a/example/r-graphql/README.md
+++ b/example/r-graphql/README.md
@@ -65,8 +65,7 @@ let () =
   @@ Dream.router([
     Dream.any("/graphql", Dream.graphql(Lwt.return, schema)),
     Dream.get("/", Dream.graphiql(~default_query, "/graphql")),
-  ])
-  @@ Dream.not_found;
+  ]);
 ```
 
 <pre><code><b>$ cd example/r-graphql</b>
diff --git a/example/r-graphql/graphql.re b/example/r-graphql/graphql.re
index cd129b1b..b0b9877a 100644
--- a/example/r-graphql/graphql.re
+++ b/example/r-graphql/graphql.re
@@ -53,5 +53,4 @@ let () =
   @@ Dream.router([
     Dream.any("/graphql", Dream.graphql(Lwt.return, schema)),
     Dream.get("/", Dream.graphiql(~default_query, "/graphql")),
-  ])
-  @@ Dream.not_found;
+  ]);
diff --git a/example/r-template-files/README.md b/example/r-template-files/README.md
index 8df5140c..a1244ba9 100644
--- a/example/r-template-files/README.md
+++ b/example/r-template-files/README.md
@@ -40,8 +40,7 @@ let () =
     Dream.get("/:word", request =>
       Dream.param("word", request) |> Template.render |> Dream.html
     ),
-  ]) @@
-  Dream.not_found;
+  ]);
 ```
 
 <pre><code><b>$ cd example/r-template-files</b>
diff --git a/example/r-template-files/server.re b/example/r-template-files/server.re
index 656b6c13..6f110705 100644
--- a/example/r-template-files/server.re
+++ b/example/r-template-files/server.re
@@ -5,5 +5,4 @@ let () =
     Dream.get("/:word", request =>
       Dream.param(request, "word") |> Template.render |> Dream.html
     ),
-  ]) @@
-  Dream.not_found;
+  ]);
diff --git a/example/r-template/template.eml.re b/example/r-template/template.eml.re
index 5fe9eaaa..3ed3b4ae 100644
--- a/example/r-template/template.eml.re
+++ b/example/r-template/template.eml.re
@@ -14,5 +14,4 @@ let () =
     Dream.get("/",
       (_ => Dream.html(greet("world")))),
 
-  ])
-  @@ Dream.not_found;
+  ]);
diff --git a/example/r-tyxml/README.md b/example/r-tyxml/README.md
index 11eb2aa3..770af013 100644
--- a/example/r-tyxml/README.md
+++ b/example/r-tyxml/README.md
@@ -28,8 +28,7 @@ let () =
     Dream.get("/",
       (_ => Dream.html(html_to_string(greet("world"))))),
 
-  ])
-  @@ Dream.not_found
+  ]);
 ```
 
 <pre><code><b>$ cd example/r-tyxml</b>
diff --git a/example/r-tyxml/tyxml.re b/example/r-tyxml/tyxml.re
index e89a44a9..6324f7aa 100644
--- a/example/r-tyxml/tyxml.re
+++ b/example/r-tyxml/tyxml.re
@@ -19,5 +19,4 @@ let () =
     Dream.get("/",
       (_ => Dream.html(html_to_string(greet("world"))))),
 
-  ])
-  @@ Dream.not_found
+  ]);
diff --git a/example/w-advanced-template/README.md b/example/w-advanced-template/README.md
index 4df84768..ef0a08b8 100644
--- a/example/w-advanced-template/README.md
+++ b/example/w-advanced-template/README.md
@@ -2,7 +2,7 @@
 
 <br>
 
-Dream templates allow for interleaving any control structures with your template code. This example shows how to do this with if statements, list iterations, and pattern matching. Although it may seem intuitive that the code somehow 'returns' the template, in reality the HTML generation happens in an imperative style. This means that any code within the template must evaluate to `unit`, and so the semicolons in this example are not optional. We use `List.iter` instead of `List.map` for a similar reason. 
+Dream templates allow for interleaving any control structures with your template code. This example shows how to do this with if statements, list iterations, and pattern matching. Although it may seem intuitive that the code somehow 'returns' the template, in reality the HTML generation happens in an imperative style. This means that any code within the template must evaluate to `unit`, and so the semicolons in this example are not optional. We use `List.iter` instead of `List.map` for a similar reason.
 
 ```ocaml
 (* In OCaml, `begin ... end` is the same as `( ... )` *)
@@ -15,7 +15,7 @@ let render_home tasks =
         <% if complete then ( %>
           complete!
         <% ) else ( %>
-          not complete 
+          not complete
         <% ); %>
       </p>
     <% end; %>
@@ -27,8 +27,8 @@ let render_home tasks =
 let render_task tasks task =
   <html>
   <body>
-%   (match List.find_opt (fun (task_, _) -> task = task_) tasks with 
-%   | Some (name, complete) -> 
+%   (match List.find_opt (fun (task_, _) -> task = task_) tasks with
+%   | Some (name, complete) ->
       <h1>TODO task: <%s name %>, complete: <%B complete %></h1>
 %   | None -> begin
       <h1>Task not found!</h1>
@@ -41,7 +41,7 @@ let tasks = [
   ("create examples", true);
   ("publish website", true);
   ("profit", false);
-] 
+]
 
 let () =
   Dream.run
@@ -51,7 +51,7 @@ let () =
       (fun _ ->
         render_home tasks
         |> Dream.html);
-        
+
 
     Dream.get "/:task"
       (fun request ->
@@ -60,7 +60,6 @@ let () =
         |> Dream.html);
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/w-advanced-template</b>
diff --git a/example/w-advanced-template/template.eml.ml b/example/w-advanced-template/template.eml.ml
index 6d17bd81..80d0bc5d 100644
--- a/example/w-advanced-template/template.eml.ml
+++ b/example/w-advanced-template/template.eml.ml
@@ -53,4 +53,3 @@ let () =
         |> Dream.html);
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-chat/README.md b/example/w-chat/README.md
index 1540efa9..ec0b86b8 100644
--- a/example/w-chat/README.md
+++ b/example/w-chat/README.md
@@ -11,16 +11,16 @@ hash table, listens for messages, and forwards them to all the other WebSockets
 in the hash table:
 
 ```ocaml
-let handle_client websocket =
-  let client_id = connect websocket in
+let handle_client client =
+  let client_id = track client in
   let rec loop () =
-    match%lwt Dream.receive websocket with
+    match%lwt Dream.receive client with
     | Some message ->
       let%lwt () = send message in
       loop ()
     | None ->
-      disconnect client_id;
-      Dream.close_websocket websocket
+      forget client_id;
+      Dream.close_websocket client
   in
   loop ()
 ```
diff --git a/example/w-chat/chat.eml.ml b/example/w-chat/chat.eml.ml
index 28d15b52..5bec1d71 100644
--- a/example/w-chat/chat.eml.ml
+++ b/example/w-chat/chat.eml.ml
@@ -30,7 +30,7 @@ let home =
   </body>
   </html>
 
-let clients : (int, Dream.response) Hashtbl.t =
+let clients : (int, Dream.websocket) Hashtbl.t =
   Hashtbl.create 5
 
 let track =
@@ -46,18 +46,18 @@ let forget client_id =
 let send message =
   Hashtbl.to_seq_values clients
   |> List.of_seq
-  |> Lwt_list.iter_p (fun client -> Dream.write client message)
+  |> Lwt_list.iter_p (fun client -> Dream.send client message)
 
 let handle_client client =
   let client_id = track client in
   let rec loop () =
-    match%lwt Dream.read client with
+    match%lwt Dream.receive client with
     | Some message ->
       let%lwt () = send message in
       loop ()
     | None ->
       forget client_id;
-      Dream.close client
+      Dream.close_websocket client
   in
   loop ()
 
@@ -73,4 +73,3 @@ let () =
       (fun _ -> Dream.websocket handle_client);
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-content-security-policy/README.md b/example/w-content-security-policy/README.md
index 5bfee80d..b04e3447 100644
--- a/example/w-content-security-policy/README.md
+++ b/example/w-content-security-policy/README.md
@@ -41,7 +41,6 @@ let () =
       Dream.empty `OK);
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/w-content-security-policy</b>
diff --git a/example/w-content-security-policy/content_security_policy.eml.ml b/example/w-content-security-policy/content_security_policy.eml.ml
index 257442b8..ad9da9cb 100644
--- a/example/w-content-security-policy/content_security_policy.eml.ml
+++ b/example/w-content-security-policy/content_security_policy.eml.ml
@@ -26,4 +26,3 @@ let () =
       Dream.empty `OK);
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-flash/README.md b/example/w-flash/README.md
index d25a1f0d..7c1b9976 100644
--- a/example/w-flash/README.md
+++ b/example/w-flash/README.md
@@ -13,7 +13,7 @@ absolutely primitive form with just one field:
 let form request =
   <html>
   <body>
-    <form action="/" method="post">
+    <form method="POST" action="/">
       <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
@@ -29,7 +29,7 @@ let result request =
   <html>
   <body>
 
-%   Dream.flash request |> List.iter (fun (category, text) ->
+%   Dream.flash_messages request |> List.iter (fun (category, text) ->
       <p><%s category %>: <%s text %></p><% ); %>
 
   </body>
@@ -53,7 +53,7 @@ let () =
   Dream.run
   @@ Dream.logger
   @@ Dream.memory_sessions
-  @@ Dream.flash_messages
+  @@ Dream.flash
   @@ Dream.router [
 
     Dream.get  "/"
@@ -64,7 +64,7 @@ let () =
       (fun request ->
         match%lwt Dream.form request with
         | `Ok ["text", text] ->
-          let () = Dream.put_flash "Info" text request in
+          let () = Dream.add_flash_message request "Info" text in
           Dream.redirect request "/result"
         | _ ->
           Dream.redirect request "/");
@@ -74,7 +74,6 @@ let () =
         Dream.html (result request));
 
   ]
-  @@ Dream.not_found
 ```
 
 The example configures a custom log level for flash messages using
diff --git a/example/w-flash/flash.eml.ml b/example/w-flash/flash.eml.ml
index 8bba6415..3db146cc 100644
--- a/example/w-flash/flash.eml.ml
+++ b/example/w-flash/flash.eml.ml
@@ -1,7 +1,7 @@
 let form request =
   <html>
   <body>
-    <form action="/" method="post">
+    <form method="POST" action="/">
       <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
@@ -12,7 +12,7 @@ let result request =
   <html>
   <body>
 
-%   Dream.flash request |> List.iter (fun (category, text) ->
+%   Dream.flash_messages request |> List.iter (fun (category, text) ->
       <p><%s category %>: <%s text %></p><% ); %>
 
   </body>
@@ -23,7 +23,7 @@ let () =
   Dream.run
   @@ Dream.logger
   @@ Dream.memory_sessions
-  @@ Dream.flash_messages
+  @@ Dream.flash
   @@ Dream.router [
 
     Dream.get  "/"
@@ -34,7 +34,7 @@ let () =
       (fun request ->
         match%lwt Dream.form request with
         | `Ok ["text", text] ->
-          let () = Dream.put_flash request "Info" text in
+          let () = Dream.add_flash_message request "Info" text in
           Dream.redirect request "/result"
         | _ ->
           Dream.redirect request "/");
@@ -44,4 +44,3 @@ let () =
         Dream.html (result request));
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-fullstack-jsoo/README.md b/example/w-fullstack-jsoo/README.md
index d5bf7b8a..57e2c597 100644
--- a/example/w-fullstack-jsoo/README.md
+++ b/example/w-fullstack-jsoo/README.md
@@ -37,7 +37,6 @@ let () =
       (Dream.static "./static");
 
   ]
-  @@ Dream.not_found
 ```
 
 The rest is printed by the client, in
diff --git a/example/w-fullstack-jsoo/server/server.eml.ml b/example/w-fullstack-jsoo/server/server.eml.ml
index a9be889e..9f97307b 100644
--- a/example/w-fullstack-jsoo/server/server.eml.ml
+++ b/example/w-fullstack-jsoo/server/server.eml.ml
@@ -18,4 +18,3 @@ let () =
       (Dream.static "./static");
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-fullstack-rescript/README.md b/example/w-fullstack-rescript/README.md
index 059045a9..faee16c3 100644
--- a/example/w-fullstack-rescript/README.md
+++ b/example/w-fullstack-rescript/README.md
@@ -39,7 +39,6 @@ let () =
       (Dream.static "./static");
 
   ]
-  @@ Dream.not_found
 ```
 
 ...and the rest of the message in the client,
diff --git a/example/w-fullstack-rescript/server/server.eml.ml b/example/w-fullstack-rescript/server/server.eml.ml
index 0827f76b..203cb7ad 100644
--- a/example/w-fullstack-rescript/server/server.eml.ml
+++ b/example/w-fullstack-rescript/server/server.eml.ml
@@ -18,4 +18,3 @@ let () =
       (Dream.static "./static");
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-graphql-subscription/README.md b/example/w-graphql-subscription/README.md
index b4f7af28..1f56eb6f 100644
--- a/example/w-graphql-subscription/README.md
+++ b/example/w-graphql-subscription/README.md
@@ -48,7 +48,6 @@ let () =
     Dream.any "/graphql" (Dream.graphql Lwt.return schema);
     Dream.get "/" (Dream.graphiql ~default_query "/graphql");
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/w-graphql-subscriptions</b>
diff --git a/example/w-graphql-subscription/graphql_subscription.ml b/example/w-graphql-subscription/graphql_subscription.ml
index 7f7d304f..b30457ff 100644
--- a/example/w-graphql-subscription/graphql_subscription.ml
+++ b/example/w-graphql-subscription/graphql_subscription.ml
@@ -36,4 +36,3 @@ let () =
     Dream.any "/graphql" (Dream.graphql Lwt.return schema);
     Dream.get "/" (Dream.graphiql ~default_query "/graphql");
   ]
-  @@ Dream.not_found
diff --git a/example/w-live-reload/README.md b/example/w-live-reload/README.md
index 6d59d305..8fd4bd03 100644
--- a/example/w-live-reload/README.md
+++ b/example/w-live-reload/README.md
@@ -93,7 +93,6 @@ let () =
         Dream.close_websocket socket));
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/w-live-reload</b>
diff --git a/example/w-live-reload/live_reload.ml b/example/w-live-reload/live_reload.ml
index 9750d90f..999c53b3 100644
--- a/example/w-live-reload/live_reload.ml
+++ b/example/w-live-reload/live_reload.ml
@@ -72,8 +72,7 @@ let () =
 
     Dream.get "/_live-reload" (fun _ ->
       Dream.websocket (fun socket ->
-        let%lwt _ = Dream.read socket in
-        Dream.close socket));
+        let%lwt _ = Dream.receive socket in
+        Dream.close_websocket socket));
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-long-polling/long_polling.eml.ml b/example/w-long-polling/long_polling.eml.ml
index 6562c838..2aefa528 100644
--- a/example/w-long-polling/long_polling.eml.ml
+++ b/example/w-long-polling/long_polling.eml.ml
@@ -74,4 +74,3 @@ let () =
         Dream.html (String.concat "\n" (List.rev messages)));
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-multipart-dump/multipart_dump.eml.ml b/example/w-multipart-dump/multipart_dump.eml.ml
index 879112fe..000d1e1b 100644
--- a/example/w-multipart-dump/multipart_dump.eml.ml
+++ b/example/w-multipart-dump/multipart_dump.eml.ml
@@ -1,7 +1,7 @@
 let home request =
   <html>
   <body>
-    <form action="/" method="post" enctype="multipart/form-data">
+    <form method="POST" action="/" enctype="multipart/form-data">
       <%s! Dream.csrf_tag request %>
       <input name="text"><br>
       <input name="files" type="file" multiple><br>
@@ -26,4 +26,3 @@ let () =
         body);
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-nginx/README.md b/example/w-nginx/README.md
index 110286b2..43c438c7 100644
--- a/example/w-nginx/README.md
+++ b/example/w-nginx/README.md
@@ -93,7 +93,6 @@ let () =
   @@ Dream.router [
     Dream.get "/" (fun _request -> Dream.html home)
   ]
-  @@ Dream.not_found
 ```
 
 To build, run:
diff --git a/example/w-nginx/server.eml.ml b/example/w-nginx/server.eml.ml
index 0a9905bd..3167a8ab 100644
--- a/example/w-nginx/server.eml.ml
+++ b/example/w-nginx/server.eml.ml
@@ -14,4 +14,3 @@ let () =
   @@ Dream.router [
     Dream.get "/" (fun _request -> Dream.html home)
   ]
-  @@ Dream.not_found
diff --git a/example/w-one-binary/README.md b/example/w-one-binary/README.md
index 47dbf2c2..b50b8c36 100644
--- a/example/w-one-binary/README.md
+++ b/example/w-one-binary/README.md
@@ -57,7 +57,6 @@ let () =
   @@ Dream.router [
     Dream.get "/assets/**" (Dream.static ~loader "")
   ]
-  @@ Dream.not_found
 ```
 
 [`Dream.static`](https://aantron.github.io/dream/#val-static) will take care of
diff --git a/example/w-one-binary/one_binary.ml b/example/w-one-binary/one_binary.ml
index ac200fb1..3fae42e0 100644
--- a/example/w-one-binary/one_binary.ml
+++ b/example/w-one-binary/one_binary.ml
@@ -9,4 +9,3 @@ let () =
   @@ Dream.router [
     Dream.get "/assets/**" (Dream.static ~loader "")
   ]
-  @@ Dream.not_found
diff --git a/example/w-postgres/README.md b/example/w-postgres/README.md
index 8ce2d4f4..39b7f90a 100644
--- a/example/w-postgres/README.md
+++ b/example/w-postgres/README.md
@@ -36,7 +36,6 @@ let () =
         Dream.empty `Bad_Request);
 
   ]
-  @@ Dream.not_found
 ```
 
 In addition, we now link with `caqti-driver-postgres` instead of
diff --git a/example/w-postgres/postgres.eml.ml b/example/w-postgres/postgres.eml.ml
index b7d3b037..71d3635a 100644
--- a/example/w-postgres/postgres.eml.ml
+++ b/example/w-postgres/postgres.eml.ml
@@ -25,7 +25,7 @@ let render comments request =
 %   comments |> List.iter (fun (_id, comment) ->
       <p><%s comment %></p><% ); %>
 
-    <form action="/" method="post">
+    <form method="POST" action="/">
       <%s! Dream.csrf_tag request %>
       <input name="text" autofocus>
     </form>
@@ -53,4 +53,3 @@ let () =
         Dream.empty `Bad_Request);
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-server-sent-events/server_sent_events.eml.ml b/example/w-server-sent-events/server_sent_events.eml.ml
index 12a6dad2..25eab88b 100644
--- a/example/w-server-sent-events/server_sent_events.eml.ml
+++ b/example/w-server-sent-events/server_sent_events.eml.ml
@@ -38,7 +38,7 @@ let rec message_loop () =
 
   message_loop ()
 
-let rec forward_messages response =
+let rec forward_messages stream =
   let%lwt messages =
     match !server_state with
     | [] ->
@@ -58,9 +58,9 @@ let rec forward_messages response =
   |> List.map (Printf.sprintf "data: %s\n\n")
   |> String.concat ""
   |> fun text ->
-    let%lwt () = Dream.write response text in
-    let%lwt () = Dream.flush response in
-    forward_messages response
+    let%lwt () = Dream.write stream text in
+    let%lwt () = Dream.flush stream in
+    forward_messages stream
 
 let () =
   Lwt.async message_loop;
@@ -77,4 +77,3 @@ let () =
         forward_messages);
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-stress-response/stress_response.ml b/example/w-stress-response/stress_response.ml
index 29854159..a19ecb64 100644
--- a/example/w-stress-response/stress_response.ml
+++ b/example/w-stress-response/stress_response.ml
@@ -4,7 +4,7 @@ let show_heap_size () =
   |> fun bytes -> bytes /. 1024. /. 1024.
   |> Dream.log "Heap size: %.0f MB"
 
-let stress ?(megabytes = 1024) ?(chunk = 64) response =
+let stress ?(megabytes = 1024) ?(chunk = 64) stream =
   let limit = megabytes * 1024 * 1024 in
   let chunk = chunk * 1024 in
 
@@ -15,12 +15,12 @@ let stress ?(megabytes = 1024) ?(chunk = 64) response =
 
   let rec loop sent =
     if sent >= limit then
-      let%lwt () = Dream.flush response in
-      let%lwt () = Dream.close response in
+      let%lwt () = Dream.flush stream in
+      let%lwt () = Dream.close stream in
       Lwt.return (Unix.gettimeofday () -. start)
     else
-      let%lwt () = Dream.write response chunk_a in
-      let%lwt () = Dream.write response chunk_b in
+      let%lwt () = Dream.write stream chunk_a in
+      let%lwt () = Dream.write stream chunk_b in
       let%lwt () = Lwt.pause () in
       loop (sent + chunk + chunk)
   in
@@ -50,4 +50,3 @@ let () =
           ?chunk:(query_int "chunk" request)));
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-stress-websocket-send/stress_websocket_send.eml.ml b/example/w-stress-websocket-send/stress_websocket_send.eml.ml
index 9e17de31..f8d910b3 100644
--- a/example/w-stress-websocket-send/stress_websocket_send.eml.ml
+++ b/example/w-stress-websocket-send/stress_websocket_send.eml.ml
@@ -42,11 +42,11 @@ let stress websocket =
   let start = Unix.gettimeofday () in
   let rec loop sent =
     if sent >= limit then
-      let%lwt () = Dream.close websocket in
+      let%lwt () = Dream.close_websocket websocket in
       Lwt.return (Unix.gettimeofday () -. start)
     else
-      let%lwt () = Dream.write websocket frame_a ~kind:`Binary in
-      let%lwt () = Dream.write websocket frame_b ~kind:`Binary in
+      let%lwt () = Dream.send websocket frame_a ~text_or_binary:`Binary in
+      let%lwt () = Dream.send websocket frame_b ~text_or_binary:`Binary in
       let%lwt () = Lwt.pause () in
       loop (sent + frame + frame)
   in
@@ -72,4 +72,3 @@ let () =
       (fun _ -> Dream.websocket stress);
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-template-files/README.md b/example/w-template-files/README.md
index eb2964cd..56249347 100644
--- a/example/w-template-files/README.md
+++ b/example/w-template-files/README.md
@@ -44,7 +44,6 @@ let () =
         |> Dream.html);
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/w-template-files</b>
diff --git a/example/w-template-files/server.ml b/example/w-template-files/server.ml
index 0f56c2f8..fac41063 100644
--- a/example/w-template-files/server.ml
+++ b/example/w-template-files/server.ml
@@ -10,4 +10,3 @@ let () =
         |> Dream.html);
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-tyxml/README.md b/example/w-tyxml/README.md
index 448cc204..1e1c815c 100644
--- a/example/w-tyxml/README.md
+++ b/example/w-tyxml/README.md
@@ -31,7 +31,6 @@ let () =
       (fun _ -> Dream.html (html_to_string (greet "world")));
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ cd example/w-tyxml</b>
diff --git a/example/w-tyxml/tyxml.ml b/example/w-tyxml/tyxml.ml
index ce23849d..132996d5 100644
--- a/example/w-tyxml/tyxml.ml
+++ b/example/w-tyxml/tyxml.ml
@@ -20,4 +20,3 @@ let () =
       (fun _ -> Dream.html (html_to_string (greet "world")));
 
   ]
-  @@ Dream.not_found
diff --git a/example/w-upload-stream/README.md b/example/w-upload-stream/README.md
index 9105ec1c..e7d8b5a7 100644
--- a/example/w-upload-stream/README.md
+++ b/example/w-upload-stream/README.md
@@ -57,7 +57,6 @@ let () =
       receive []);
 
   ]
-  @@ Dream.not_found
 ```
 
 <pre><code><b>$ npm install esy && npx esy</b>
diff --git a/example/w-upload-stream/upload_stream.eml.ml b/example/w-upload-stream/upload_stream.eml.ml
index a0e35d7e..ca9cf4cf 100644
--- a/example/w-upload-stream/upload_stream.eml.ml
+++ b/example/w-upload-stream/upload_stream.eml.ml
@@ -47,4 +47,3 @@ let () =
       receive []);
 
   ]
-  @@ Dream.not_found
diff --git a/example/z-docker-esy/README.md b/example/z-docker-esy/README.md
index 8ac1695e..25ae9ea8 100644
--- a/example/z-docker-esy/README.md
+++ b/example/z-docker-esy/README.md
@@ -14,7 +14,6 @@ let () =
     Dream.get "/" (fun _ ->
       Dream.html "Dream started by Docker Compose, built with esy!");
   ]
-  @@ Dream.not_found
 ```
 
 It uses [Docker Compose](https://docs.docker.com/compose/), so that you can
diff --git a/example/z-docker-esy/app.ml b/example/z-docker-esy/app.ml
index e2c65265..fe07cf92 100644
--- a/example/z-docker-esy/app.ml
+++ b/example/z-docker-esy/app.ml
@@ -5,4 +5,3 @@ let () =
     Dream.get "/" (fun _ ->
       Dream.html "Dream started by Docker Compose, built with esy!");
   ]
-  @@ Dream.not_found
diff --git a/example/z-docker-opam/app.ml b/example/z-docker-opam/app.ml
index e7af6315..df300152 100644
--- a/example/z-docker-opam/app.ml
+++ b/example/z-docker-opam/app.ml
@@ -5,4 +5,3 @@ let () =
     Dream.get "/" (fun _ ->
       Dream.html "Dream started by Docker Compose, built with opam!");
   ]
-  @@ Dream.not_found
diff --git a/example/z-fly/README.md b/example/z-fly/README.md
index 9eb3bd4b..25ff77fc 100644
--- a/example/z-fly/README.md
+++ b/example/z-fly/README.md
@@ -3,7 +3,7 @@
 This example deploys a very simple Dream
 [application](https://github.com/aantron/dream/blob/master/example/z-fly/app.ml)
 to [Fly](https://www.fly.io/), a hosting platform that scales and smartly moves your servers closer to your users. A low-usage app can be hosted for
-[free](https://fly.io/docs/about/pricing/#free-tier). Fly offers [flyctl](https://fly.io/docs/getting-started/installing-flyctl/), their CLI, that makes [deployment](https://fly.io/docs/hands-on/start/) and  
+[free](https://fly.io/docs/about/pricing/#free-tier). Fly offers [flyctl](https://fly.io/docs/getting-started/installing-flyctl/), their CLI, that makes [deployment](https://fly.io/docs/hands-on/start/) and
 [scaling](https://fly.io/docs/reference/scaling/) super simple.
 
 ```ocaml
@@ -13,7 +13,6 @@ let () =
   @@ Dream.router [
     Dream.get "/" (fun _ -> Dream.html "Dream deployed on Fly!");
   ]
-  @@ Dream.not_found
 ```
 
 It uses [Docker Compose](https://docs.docker.com/compose/), so that you can
diff --git a/example/z-fly/app.ml b/example/z-fly/app.ml
index 2184ee89..9c0243f5 100644
--- a/example/z-fly/app.ml
+++ b/example/z-fly/app.ml
@@ -4,4 +4,3 @@ let () =
   @@ Dream.router [
     Dream.get "/" (fun _ -> Dream.html "Dream deployed on Fly!");
   ]
-  @@ Dream.not_found
diff --git a/example/z-heroku/README.md b/example/z-heroku/README.md
index e4af03c7..45eecbce 100644
--- a/example/z-heroku/README.md
+++ b/example/z-heroku/README.md
@@ -21,7 +21,6 @@ let () =
   @@ Dream.router [
     Dream.get "/" (fun _ -> Dream.html "Dream running in Heroku!");
   ]
-  @@ Dream.not_found
 ```
 
 It is running at
diff --git a/example/z-heroku/app.ml b/example/z-heroku/app.ml
index c2c86bdb..232682e6 100644
--- a/example/z-heroku/app.ml
+++ b/example/z-heroku/app.ml
@@ -4,4 +4,3 @@ let () =
   @@ Dream.router [
     Dream.get "/" (fun _ -> Dream.html "Dream running in Heroku!");
   ]
-  @@ Dream.not_found
diff --git a/example/z-systemd/README.md b/example/z-systemd/README.md
index 73f023dc..944979eb 100644
--- a/example/z-systemd/README.md
+++ b/example/z-systemd/README.md
@@ -34,7 +34,6 @@ let () =
   @@ Dream.router [
     Dream.get "/" (fun _ -> Dream.html "Dream started by systemd!");
   ]
-  @@ Dream.not_found
 ```
 
 It is live at [http://systemd.dream.as](http://systemd.dream.as). As a second
diff --git a/example/z-systemd/app.ml b/example/z-systemd/app.ml
index 98261d50..87703ff6 100644
--- a/example/z-systemd/app.ml
+++ b/example/z-systemd/app.ml
@@ -4,4 +4,3 @@ let () =
   @@ Dream.router [
     Dream.get "/" (fun _ -> Dream.html "Dream started by systemd!");
   ]
-  @@ Dream.not_found

From 9bec26f837febae64e37a5eb39f7ef66914db4b1 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 15:42:36 +0300
Subject: [PATCH 153/312] Change query functions to use t-first style

---
 example/w-query/README.md               | 2 +-
 example/w-query/query.ml                | 2 +-
 src/dream.mli                           | 6 ++----
 src/server/query.ml                     | 4 ++--
 test/expect/pure/formats/query/query.ml | 6 ++----
 5 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/example/w-query/README.md b/example/w-query/README.md
index f40d215f..9c985fd8 100644
--- a/example/w-query/README.md
+++ b/example/w-query/README.md
@@ -8,7 +8,7 @@ This very simple example accesses a value in the query string with
 ```ocaml
 let () =
   Dream.run (fun request ->
-    match Dream.query "echo" request with
+    match Dream.query request "echo" with
     | None ->
       Dream.html "Use ?echo=foo to give a message to echo!"
     | Some message ->
diff --git a/example/w-query/query.ml b/example/w-query/query.ml
index 0dbff411..3d9b70ca 100644
--- a/example/w-query/query.ml
+++ b/example/w-query/query.ml
@@ -1,6 +1,6 @@
 let () =
   Dream.run (fun request ->
-    match Dream.query "echo" request with
+    match Dream.query request "echo" with
     | None ->
       Dream.html "Use ?echo=foo to give a message to echo!"
     | Some message ->
diff --git a/src/dream.mli b/src/dream.mli
index d407328b..f265c7a6 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -432,16 +432,14 @@ https://github.com/aantron/dream/issues
 (** Replaces the version. See {!Dream.version}. *)
 (**/**)
 
-(* TODO Convert query string functions to the new t-first style. *)
-
-val query : string -> request -> string option
+val query : request -> string -> string option
 (** First query parameter with the given name. See
     {{:https://tools.ietf.org/html/rfc3986#section-3.4} RFC 3986 §3.4} and
     example
     {{:https://github.com/aantron/dream/tree/master/example/w-query#files}
     [w-query]}. *)
 
-val queries : string -> request -> string list
+val queries : request -> string -> string list
 (** All query parameters with the given name. *)
 
 val all_queries : request -> (string * string) list
diff --git a/src/server/query.ml b/src/server/query.ml
index be91420a..62b6734d 100644
--- a/src/server/query.ml
+++ b/src/server/query.ml
@@ -28,10 +28,10 @@ let all_queries request =
   |> snd
   |> Formats.from_form_urlencoded
 
-let query name request =
+let query request name =
   List.assoc_opt name (all_queries request)
 
-let queries name request =
+let queries request name =
   all_queries request
   |> List.fold_left (fun accumulator (name', value) ->
     if name' = name then
diff --git a/test/expect/pure/formats/query/query.ml b/test/expect/pure/formats/query/query.ml
index 78b9c114..8abcc169 100644
--- a/test/expect/pure/formats/query/query.ml
+++ b/test/expect/pure/formats/query/query.ml
@@ -6,8 +6,7 @@
 
 
 let query name string =
-  Dream.request ~target:("/?" ^ string) ""
-  |> Dream.query name
+  Dream.query (Dream.request ~target:("/?" ^ string) "") name
   |> function
     | Some value -> Printf.printf "%S\n" value
     | None -> print_endline "None"
@@ -36,8 +35,7 @@ let%expect_test _ =
 
 
 let queries name string =
-  Dream.request ~target:("/?" ^ string) ""
-  |> Dream.queries name
+  Dream.queries (Dream.request ~target:("/?" ^ string) "") name
   |> List.map (Printf.sprintf "%S")
   |> String.concat " "
   |> Printf.printf "[%s]\n"

From cc106030649da5ddafe829bfff9d004f22c4b1e0 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 15:59:24 +0300
Subject: [PATCH 154/312] Be consistent about method="POST" attribute

---
 example/d-form/README.md                     | 2 +-
 example/w-upload-stream/README.md            | 2 +-
 example/w-upload-stream/upload_stream.eml.ml | 2 +-
 src/dream.mli                                | 8 ++++----
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/example/d-form/README.md b/example/d-form/README.md
index fb646cb9..44a1ff43 100644
--- a/example/d-form/README.md
+++ b/example/d-form/README.md
@@ -59,7 +59,7 @@ a CSRF token into it using the
 generate the `<input>` tag.
 
 ```html
-<form method="post" action="/">
+<form method="POST" action="/">
   <input name="dream.csrf" type="hidden" value="j8vjZ6...">
 
   <!-- The rest we actually wrote ourselves in the template! -->
diff --git a/example/w-upload-stream/README.md b/example/w-upload-stream/README.md
index e7d8b5a7..4868a3dc 100644
--- a/example/w-upload-stream/README.md
+++ b/example/w-upload-stream/README.md
@@ -11,7 +11,7 @@ the total size of each uploaded file:
 let home request =
   <html>
   <body>
-    <form action="/" enctype="multipart/form-data" method="post">
+    <form method="POST" action="/" enctype="multipart/form-data">
       <%s! Dream.csrf_tag request %>
       <input name="files" type="file" multiple>
       <button>Submit!</button>
diff --git a/example/w-upload-stream/upload_stream.eml.ml b/example/w-upload-stream/upload_stream.eml.ml
index ca9cf4cf..e6d086f9 100644
--- a/example/w-upload-stream/upload_stream.eml.ml
+++ b/example/w-upload-stream/upload_stream.eml.ml
@@ -1,7 +1,7 @@
 let home request =
   <html>
   <body>
-    <form action="/" enctype="multipart/form-data" method="post">
+    <form method="POST" action="/" enctype="multipart/form-data">
       <%s! Dream.csrf_tag request %>
       <input name="files" type="file" multiple>
       <button>Submit!</button>
diff --git a/src/dream.mli b/src/dream.mli
index f265c7a6..51fa0b11 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1001,7 +1001,7 @@ val origin_referrer_check : middleware
     with a CSRF token:
 
     {[
-      <form action="/" method="post">
+      <form method="POST" action="/">
         <%s! Dream.csrf_tag request %>
         <input name="my.field">
       </form>
@@ -1137,7 +1137,7 @@ val multipart : ?csrf:bool -> request -> multipart_form form_result promise
     [multipart/form-data]. The CSRF token can be generated in a template with
 
     {[
-      <form action="/" method="post" enctype="multipart/form-data">
+      <form method="POST" action="/" enctype="multipart/form-data">
         <%s! Dream.csrf_tag request %>
     ]}
 
@@ -1320,7 +1320,7 @@ val csrf_tag : request -> string
     {!Dream.val-form} and {!Dream.val-multipart}. For example, in a template,
 
     {[
-      <form method="post" action="/">
+      <form method="POST" action="/">
         <%s! Dream.csrf_tag request %>
         <input name="my.field">
       </form>
@@ -1329,7 +1329,7 @@ val csrf_tag : request -> string
     expands to
 
     {[
-      <form method="post" action="/">
+      <form method="POST" action="/">
         <input name="dream.csrf" type="hidden" value="a-token">
         <input name="my.field">
       </form>

From c0aeaada68f04641549ad549ee30ed8df7cdbc3e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 11 Feb 2022 22:15:58 +0300
Subject: [PATCH 155/312] Update release script and package metadata

---
 Makefile          | 16 +++++++++++-----
 dream-httpaf.opam |  1 +
 dream.opam        |  2 +-
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index 3ebc946f..f165437d 100644
--- a/Makefile
+++ b/Makefile
@@ -68,7 +68,7 @@ clean : clean-coverage
 	dune clean
 	dune clean --root .
 	make --no-print-directory -C docs/web clean
-	rm -rf src/graphiql/node_modules dream-* _release
+	rm -rf src/graphiql/node_modules
 
 .PHONY : test-ocamlformat
 test-ocamlformat :
@@ -94,12 +94,14 @@ todo-all :
 
 VERSION := $(shell git describe --abbrev=0)
 RELEASE := dream-$(VERSION)
-FILES := src dream.opam dune-project LICENSE.md README.md
+FILES := \
+  src dream.opam dream-httpaf.opam dream-pure.opam dream-mirage.opam \
+	dune-project LICENSE.md README.md
 
 .PHONY : release
 release : clean
 	rm -rf $(RELEASE) $(RELEASE).tar $(RELEASE).tar.gz _release
-	mkdir $(RELEASE)
+	mkdir -p $(RELEASE)
 	cp -r $(FILES) $(RELEASE)
 	rm -rf $(RELEASE)/src/vendor/gluten/.github
 	rm -rf $(RELEASE)/src/vendor/gluten/async
@@ -135,10 +137,14 @@ release : clean
 	mkdir -p _release
 	cp $(RELEASE).tar.gz _release
 	(cd _release && tar xf $(RELEASE).tar.gz)
+	opam remove -y dream-pure dream-httpaf dream
+	opam pin remove -y dream-pure dream-httpaf dream
+	opam pin add -y --no-action dream-pure _release/$(RELEASE) --kind=path
+	opam pin add -y --no-action dream-httpaf _release/$(RELEASE) --kind=path
 	opam pin add -y --no-action dream _release/$(RELEASE) --kind=path
 	opam reinstall -y --verbose dream
 	cd example/1-hello && dune exec --root . ./hello.exe || true
-	opam remove -y dream
-	opam pin remove -y dream
+	opam remove -y dream-pure dream-httpaf dream
+	opam pin remove -y dream-pure dream-httpaf dream
 	md5sum $(RELEASE).tar.gz
 	ls -l $(RELEASE).tar.gz
diff --git a/dream-httpaf.opam b/dream-httpaf.opam
index 443479ee..d75f97de 100644
--- a/dream-httpaf.opam
+++ b/dream-httpaf.opam
@@ -13,6 +13,7 @@ author: "Anton Bachin <antonbachin@yahoo.com>"
 maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 
 depends: [
+  "dream-pure"
   "dune" {>= "2.7.0"}  # --instrument-with.
   "lwt"
   "lwt_ppx" {>= "1.2.2"}
diff --git a/dream.opam b/dream.opam
index 1e59ef25..a7ce24c6 100644
--- a/dream.opam
+++ b/dream.opam
@@ -53,8 +53,8 @@ depends: [
   "caqti-lwt"
   "conf-libev" {os != "win32"}
   "cstruct" {>= "6.0.0"}
-  "dream-pure"
   "dream-httpaf"
+  "dream-pure"
   "dune" {>= "2.7.0"}  # --instrument-with.
   "fmt" {>= "0.8.7"}  # `Italic.
   "graphql_parser"

From 847acd2fa2d48e42d8825209d5a95a0437fd972c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 12 Feb 2022 04:41:30 +0300
Subject: [PATCH 156/312] Require mirage-clock >= 3.0.0

---
 dream.opam | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dream.opam b/dream.opam
index a7ce24c6..d8778319 100644
--- a/dream.opam
+++ b/dream.opam
@@ -64,7 +64,7 @@ depends: [
   "lwt_ssl"
   "logs" {>= "0.5.0"}
   "magic-mime"
-  "mirage-clock"
+  "mirage-clock" {>= "3.0.0"}  # now_d_ps : unit -> int * int64.
   "mirage-crypto" {>= "0.8.1"}  # AES-256-GCM.
   "mirage-crypto-rng" {>= "0.8.0"}  # Signature of initialize.
   "multipart_form" {>= "0.4.0"}

From bc3c00f7006188950171396e2ac98362d25b42ab Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sat, 12 Feb 2022 04:49:51 +0300
Subject: [PATCH 157/312] Update README graphic

---
 docs/asset/sample.html |   1 -
 docs/asset/sample.png  | Bin 18572 -> 16630 bytes
 2 files changed, 1 deletion(-)

diff --git a/docs/asset/sample.html b/docs/asset/sample.html
index c82db91e..834aebc6 100644
--- a/docs/asset/sample.html
+++ b/docs/asset/sample.html
@@ -69,7 +69,6 @@
   <span class="apply">@@</span> <span class="module">Dream</span>.router <span class="punct">[</span>
     <span class="module">Dream</span>.get <span class="string">"/"</span> (<span class="keyword fun">fun</span> _ <span class="punct">-></span> <span class="module">Dream</span>.html (hello <span class="string">"world"</span>))<span class="punct">;</span>
   <span class="punct">]</span>
-  <span class="apply">@@</span> <span class="module">Dream</span>.not_found
 </pre>
 
 </body>
diff --git a/docs/asset/sample.png b/docs/asset/sample.png
index 36f3d5bbaad9100c59f48659cee6a78096abdb34..1bda0dde25c9bb211db1dd85ef63732eb7f80133 100644
GIT binary patch
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From c82308b976c5c72c988285c701e90bd684707dbc Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 11:16:33 +0300
Subject: [PATCH 158/312] Update example esy.jsons to point to alpha3

---
 example/1-hello/esy.json                     | 2 +-
 example/2-middleware/esy.json                | 2 +-
 example/3-router/esy.json                    | 4 +---
 example/4-counter/esy.json                   | 2 +-
 example/5-promise/esy.json                   | 2 +-
 example/6-echo/esy.json                      | 2 +-
 example/7-template/esy.json                  | 4 +---
 example/8-debug/esy.json                     | 4 +---
 example/9-error/esy.json                     | 4 +---
 example/a-log/esy.json                       | 2 +-
 example/b-session/esy.json                   | 2 +-
 example/c-cookie/esy.json                    | 4 +---
 example/d-form/esy.json                      | 2 +-
 example/e-json/esy.json                      | 4 +---
 example/f-static/esy.json                    | 2 +-
 example/g-upload/esy.json                    | 2 +-
 example/h-sql/esy.json                       | 2 +-
 example/i-graphql/esy.json                   | 4 +---
 example/j-stream/esy.json                    | 4 +---
 example/k-websocket/esy.json                 | 4 +---
 example/l-https/esy.json                     | 2 +-
 example/r-advanced-template/esy.json         | 4 +---
 example/r-fullstack-melange/esy.json         | 2 +-
 example/r-graphql/esy.json                   | 4 +---
 example/r-hello/esy.json                     | 2 +-
 example/r-template-files/esy.json            | 4 +---
 example/r-template-stream/esy.json           | 4 +---
 example/r-template/esy.json                  | 2 +-
 example/r-tyxml/README.md                    | 3 ++-
 example/r-tyxml/esy.json                     | 2 +-
 example/w-advanced-template/esy.json         | 4 +---
 example/w-chat/esy.json                      | 4 +---
 example/w-content-security-policy/esy.json   | 2 +-
 example/w-esy/README.md                      | 2 +-
 example/w-esy/esy.json                       | 2 +-
 example/w-flash/esy.json                     | 4 +---
 example/w-fswatch/esy.json                   | 2 +-
 example/w-fullstack-jsoo/esy.json            | 2 +-
 example/w-fullstack-rescript/esy.json        | 2 +-
 example/w-graphql-subscription/esy.json      | 4 +---
 example/w-live-reload/esy.json               | 4 +---
 example/w-long-polling/esy.json              | 2 +-
 example/w-multipart-dump/esy.json            | 2 +-
 example/w-nginx/esy.json                     | 2 +-
 example/w-one-binary/esy.json                | 2 +-
 example/w-postgres/esy.json                  | 2 +-
 example/w-query/esy.json                     | 2 +-
 example/w-server-sent-events/esy.json        | 2 +-
 example/w-stress-response/esy.json           | 4 +---
 example/w-stress-response/stress_response.ml | 8 ++++----
 example/w-stress-websocket-send/esy.json     | 4 +---
 example/w-template-files/esy.json            | 4 +---
 example/w-template-stream/esy.json           | 4 +---
 example/w-tyxml/esy.json                     | 2 +-
 example/w-upload-stream/esy.json             | 2 +-
 example/z-docker-esy/esy.json                | 2 +-
 example/z-fly/esy.json                       | 2 +-
 example/z-heroku/esy.json                    | 2 +-
 example/z-systemd/esy.json                   | 2 +-
 test/run-examples-esy.sh                     | 9 +++++++++
 60 files changed, 72 insertions(+), 106 deletions(-)
 create mode 100644 test/run-examples-esy.sh

diff --git a/example/1-hello/esy.json b/example/1-hello/esy.json
index 3e71335d..15c99c36 100644
--- a/example/1-hello/esy.json
+++ b/example/1-hello/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/2-middleware/esy.json b/example/2-middleware/esy.json
index c810fd25..edf3ac16 100644
--- a/example/2-middleware/esy.json
+++ b/example/2-middleware/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/3-router/esy.json b/example/3-router/esy.json
index 64f209e2..662e6b56 100644
--- a/example/3-router/esy.json
+++ b/example/3-router/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/4-counter/esy.json b/example/4-counter/esy.json
index b783e0a6..7bd296dc 100644
--- a/example/4-counter/esy.json
+++ b/example/4-counter/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/5-promise/esy.json b/example/5-promise/esy.json
index 0df7adec..5e08dcb7 100644
--- a/example/5-promise/esy.json
+++ b/example/5-promise/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/6-echo/esy.json b/example/6-echo/esy.json
index 6f1ef285..c2118c9d 100644
--- a/example/6-echo/esy.json
+++ b/example/6-echo/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/7-template/esy.json b/example/7-template/esy.json
index 79337c98..a675fa89 100644
--- a/example/7-template/esy.json
+++ b/example/7-template/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/8-debug/esy.json b/example/8-debug/esy.json
index b0e30611..6b4ab4ee 100644
--- a/example/8-debug/esy.json
+++ b/example/8-debug/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/9-error/esy.json b/example/9-error/esy.json
index 802229ad..0b017c94 100644
--- a/example/9-error/esy.json
+++ b/example/9-error/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/a-log/esy.json b/example/a-log/esy.json
index af7e524e..3d4db268 100644
--- a/example/a-log/esy.json
+++ b/example/a-log/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/b-session/esy.json b/example/b-session/esy.json
index 92d97769..20ed6d90 100644
--- a/example/b-session/esy.json
+++ b/example/b-session/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/c-cookie/esy.json b/example/c-cookie/esy.json
index f10067c5..3d477c78 100644
--- a/example/c-cookie/esy.json
+++ b/example/c-cookie/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/d-form/esy.json b/example/d-form/esy.json
index 971f5e60..a3d304d7 100644
--- a/example/d-form/esy.json
+++ b/example/d-form/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/e-json/esy.json b/example/e-json/esy.json
index 6b432173..6c88c8da 100644
--- a/example/e-json/esy.json
+++ b/example/e-json/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/ppx_yojson_conv": "*",
     "ocaml": "4.12.x"
@@ -10,8 +10,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/f-static/esy.json b/example/f-static/esy.json
index 5177eb8d..23353bcb 100644
--- a/example/f-static/esy.json
+++ b/example/f-static/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/g-upload/esy.json b/example/g-upload/esy.json
index d2ce772e..40e93e38 100644
--- a/example/g-upload/esy.json
+++ b/example/g-upload/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/h-sql/esy.json b/example/h-sql/esy.json
index b0eb1d83..a28be182 100644
--- a/example/h-sql/esy.json
+++ b/example/h-sql/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/caqti-driver-sqlite3": "*",
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/i-graphql/esy.json b/example/i-graphql/esy.json
index dbef1520..378283c4 100644
--- a/example/i-graphql/esy.json
+++ b/example/i-graphql/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/j-stream/esy.json b/example/j-stream/esy.json
index 68662d91..4b03b24b 100644
--- a/example/j-stream/esy.json
+++ b/example/j-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/k-websocket/esy.json b/example/k-websocket/esy.json
index cfb3b451..806e8ba6 100644
--- a/example/k-websocket/esy.json
+++ b/example/k-websocket/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/l-https/esy.json b/example/l-https/esy.json
index 3b2721b3..4185f0cd 100644
--- a/example/l-https/esy.json
+++ b/example/l-https/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/r-advanced-template/esy.json b/example/r-advanced-template/esy.json
index 2223089e..31b155d9 100644
--- a/example/r-advanced-template/esy.json
+++ b/example/r-advanced-template/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
@@ -10,8 +10,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/r-fullstack-melange/esy.json b/example/r-fullstack-melange/esy.json
index 0d7c5ada..9851b111 100644
--- a/example/r-fullstack-melange/esy.json
+++ b/example/r-fullstack-melange/esy.json
@@ -1,7 +1,7 @@
 {
   "name": "fullstack-melange",
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "melange": "melange-re/melange",
diff --git a/example/r-graphql/esy.json b/example/r-graphql/esy.json
index 766b219b..53f1b6fd 100644
--- a/example/r-graphql/esy.json
+++ b/example/r-graphql/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
@@ -10,8 +10,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/r-hello/esy.json b/example/r-hello/esy.json
index d76dae4b..a1387ab2 100644
--- a/example/r-hello/esy.json
+++ b/example/r-hello/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-template-files/esy.json b/example/r-template-files/esy.json
index 112f0596..6950206e 100644
--- a/example/r-template-files/esy.json
+++ b/example/r-template-files/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/r-template-stream/esy.json b/example/r-template-stream/esy.json
index 33fef61f..5aadc9ba 100644
--- a/example/r-template-stream/esy.json
+++ b/example/r-template-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
@@ -10,8 +10,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/r-template/esy.json b/example/r-template/esy.json
index 7d418fb4..31b155d9 100644
--- a/example/r-template/esy.json
+++ b/example/r-template/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-tyxml/README.md b/example/r-tyxml/README.md
index 770af013..51dde84e 100644
--- a/example/r-tyxml/README.md
+++ b/example/r-tyxml/README.md
@@ -42,8 +42,9 @@ To get this, we depend on package `tyxml-jsx` in
 
 <pre><code>{
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
+    "@opam/reason": "^3.7.0",
     "@opam/tyxml": "*",
     <b>"@opam/tyxml-jsx": "*",</b>
     "ocaml": "4.12.x"
diff --git a/example/r-tyxml/esy.json b/example/r-tyxml/esy.json
index 5ba1f5e3..1f049556 100644
--- a/example/r-tyxml/esy.json
+++ b/example/r-tyxml/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "@opam/tyxml": "*",
diff --git a/example/w-advanced-template/esy.json b/example/w-advanced-template/esy.json
index 79337c98..a675fa89 100644
--- a/example/w-advanced-template/esy.json
+++ b/example/w-advanced-template/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-chat/esy.json b/example/w-chat/esy.json
index cb117b9c..b02d6ef0 100644
--- a/example/w-chat/esy.json
+++ b/example/w-chat/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-content-security-policy/esy.json b/example/w-content-security-policy/esy.json
index d22ba09b..3089ccaf 100644
--- a/example/w-content-security-policy/esy.json
+++ b/example/w-content-security-policy/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-esy/README.md b/example/w-esy/README.md
index f9207013..cc350319 100644
--- a/example/w-esy/README.md
+++ b/example/w-esy/README.md
@@ -10,7 +10,7 @@ and looks like this:
 ```json
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-esy/esy.json b/example/w-esy/esy.json
index 3e71335d..15c99c36 100644
--- a/example/w-esy/esy.json
+++ b/example/w-esy/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-flash/esy.json b/example/w-flash/esy.json
index c58a68d3..5ef63045 100644
--- a/example/w-flash/esy.json
+++ b/example/w-flash/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-fswatch/esy.json b/example/w-fswatch/esy.json
index 3e71335d..15c99c36 100644
--- a/example/w-fswatch/esy.json
+++ b/example/w-fswatch/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-fullstack-jsoo/esy.json b/example/w-fullstack-jsoo/esy.json
index 37d63a63..e6d0d326 100644
--- a/example/w-fullstack-jsoo/esy.json
+++ b/example/w-fullstack-jsoo/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/js_of_ocaml": "*",
     "@opam/js_of_ocaml-ppx": "*",
diff --git a/example/w-fullstack-rescript/esy.json b/example/w-fullstack-rescript/esy.json
index bee5005b..be979580 100644
--- a/example/w-fullstack-rescript/esy.json
+++ b/example/w-fullstack-rescript/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-graphql-subscription/esy.json b/example/w-graphql-subscription/esy.json
index 9330db58..342cc5e8 100644
--- a/example/w-graphql-subscription/esy.json
+++ b/example/w-graphql-subscription/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-live-reload/esy.json b/example/w-live-reload/esy.json
index 498544e0..a1b1f36d 100644
--- a/example/w-live-reload/esy.json
+++ b/example/w-live-reload/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/lambdasoup": "*",
     "ocaml": "4.12.x"
@@ -10,8 +10,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-long-polling/esy.json b/example/w-long-polling/esy.json
index 25e65606..adba4fe1 100644
--- a/example/w-long-polling/esy.json
+++ b/example/w-long-polling/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-multipart-dump/esy.json b/example/w-multipart-dump/esy.json
index aad42cdc..987430fd 100644
--- a/example/w-multipart-dump/esy.json
+++ b/example/w-multipart-dump/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-nginx/esy.json b/example/w-nginx/esy.json
index 509a2a4c..03f840ba 100644
--- a/example/w-nginx/esy.json
+++ b/example/w-nginx/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-one-binary/esy.json b/example/w-one-binary/esy.json
index 528d6f31..435ebda5 100644
--- a/example/w-one-binary/esy.json
+++ b/example/w-one-binary/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/crunch": "*",
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-postgres/esy.json b/example/w-postgres/esy.json
index c7616dd7..068906a8 100644
--- a/example/w-postgres/esy.json
+++ b/example/w-postgres/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/caqti-driver-postgresql": "*",
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-query/esy.json b/example/w-query/esy.json
index 06c87a25..630d3fd8 100644
--- a/example/w-query/esy.json
+++ b/example/w-query/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-server-sent-events/esy.json b/example/w-server-sent-events/esy.json
index ddf1ef7b..29564086 100644
--- a/example/w-server-sent-events/esy.json
+++ b/example/w-server-sent-events/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-stress-response/esy.json b/example/w-stress-response/esy.json
index 38883279..1f01436c 100644
--- a/example/w-stress-response/esy.json
+++ b/example/w-stress-response/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-stress-response/stress_response.ml b/example/w-stress-response/stress_response.ml
index a19ecb64..dcfefedc 100644
--- a/example/w-stress-response/stress_response.ml
+++ b/example/w-stress-response/stress_response.ml
@@ -32,8 +32,8 @@ let stress ?(megabytes = 1024) ?(chunk = 64) stream =
 
   Lwt.return_unit
 
-let query_int name request =
-  Dream.query name request |> Option.map int_of_string
+let query_int request name =
+  Dream.query request name |> Option.map int_of_string
 
 let () =
   show_heap_size ();
@@ -46,7 +46,7 @@ let () =
       Dream.stream
         ~headers:["Content-Type", "application/octet-stream"]
         (stress
-          ?megabytes:(query_int "mb" request)
-          ?chunk:(query_int "chunk" request)));
+          ?megabytes:(query_int request "mb")
+          ?chunk:(query_int request "chunk")));
 
   ]
diff --git a/example/w-stress-websocket-send/esy.json b/example/w-stress-websocket-send/esy.json
index 869673bc..8c85eafa 100644
--- a/example/w-stress-websocket-send/esy.json
+++ b/example/w-stress-websocket-send/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-template-files/esy.json b/example/w-template-files/esy.json
index 112f0596..6950206e 100644
--- a/example/w-template-files/esy.json
+++ b/example/w-template-files/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-template-stream/esy.json b/example/w-template-stream/esy.json
index c1ecc1a5..1b64cfa4 100644
--- a/example/w-template-stream/esy.json
+++ b/example/w-template-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "aantron/dream:dream.opam",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
@@ -9,8 +9,6 @@
   },
   "resolutions": {
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb6685b688649045aceac55dc559f6f21b829",
-    "@opam/dream-httpaf": "aantron/dream:dream-httpaf.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
-    "@opam/dream-pure": "aantron/dream:dream-pure.opam#03e4d37cb5f5f638707479cd46105e2ee2b1df0e",
     "esy-openssl": "esy-packages/esy-openssl#619ae2d46ca981ec26ab3287487ad98b157a01d1"
   },
   "scripts": {
diff --git a/example/w-tyxml/esy.json b/example/w-tyxml/esy.json
index b09f6d15..0ad9fb74 100644
--- a/example/w-tyxml/esy.json
+++ b/example/w-tyxml/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "@opam/tyxml": "*",
     "ocaml": "4.12.x"
diff --git a/example/w-upload-stream/esy.json b/example/w-upload-stream/esy.json
index 8f7a60bc..c1c49039 100644
--- a/example/w-upload-stream/esy.json
+++ b/example/w-upload-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-docker-esy/esy.json b/example/z-docker-esy/esy.json
index 23132ab0..396d8278 100644
--- a/example/z-docker-esy/esy.json
+++ b/example/z-docker-esy/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-fly/esy.json b/example/z-fly/esy.json
index 959f7de2..916e6927 100644
--- a/example/z-fly/esy.json
+++ b/example/z-fly/esy.json
@@ -4,7 +4,7 @@
     "build": "dune build"
   },
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-heroku/esy.json b/example/z-heroku/esy.json
index 85cd3ee8..5f5190e9 100644
--- a/example/z-heroku/esy.json
+++ b/example/z-heroku/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-systemd/esy.json b/example/z-systemd/esy.json
index 23132ab0..396d8278 100644
--- a/example/z-systemd/esy.json
+++ b/example/z-systemd/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha2",
+    "@opam/dream": "1.0.0~alpha3",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/test/run-examples-esy.sh b/test/run-examples-esy.sh
new file mode 100644
index 00000000..05d4437e
--- /dev/null
+++ b/test/run-examples-esy.sh
@@ -0,0 +1,9 @@
+#! /bin/bash
+
+EXAMPLES=$(ls example)
+
+for EXAMPLE in $EXAMPLES
+do
+  echo $EXAMPLE
+  (cd example/$EXAMPLE && esy && (esy start & (sleep 10 && pkill -P $$)))
+done

From e0388203f06e95e0e04cdfe0646abcaaf5bcdbd3 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 11:26:11 +0300
Subject: [PATCH 159/312] Update playground to alpha3

---
 example/z-playground/opam-switch              | 156 +++++++-----------
 .../z-playground/sandbox/ocaml/server.eml.ml  |   1 -
 .../z-playground/sandbox/reason/server.eml.re |   1 -
 example/z-playground/server/playground.ml     |  17 +-
 example/z-playground/server/sync.sh           |  18 +-
 5 files changed, 74 insertions(+), 119 deletions(-)

diff --git a/example/z-playground/opam-switch b/example/z-playground/opam-switch
index 9d51863d..cb55fb78 100644
--- a/example/z-playground/opam-switch
+++ b/example/z-playground/opam-switch
@@ -8,154 +8,110 @@ compiler: [
   "ocaml-config.2"
   "ocaml-options-vanilla.1"
 ]
-roots: ["multipart_form.git" "ocaml-base-compiler.4.12.0"]
+roots: ["ocaml-base-compiler.4.12.0"]
 installed: [
   "angstrom.0.15.0"
-  "base.v0.14.1"
+  "base.v0.14.3"
   "base-bigarray.base"
   "base-bytes.base"
   "base-threads.base"
   "base-unix.base"
   "base64.3.5.0"
-  "bigarray-compat.1.0.0"
+  "bigarray-compat.1.1.0"
   "bigarray-overlap.0.2.0"
-  "bigstringaf.0.7.0"
+  "bigstringaf.0.8.0"
   "biniou.1.2.1"
-  "bisect_ppx.2.6.0"
-  "caqti.1.5.0"
-  "caqti-driver-sqlite3.1.5.0"
-  "caqti-lwt.1.3.0"
-  "cmdliner.1.0.4"
-  "conf-libev.4-11"
+  "bisect_ppx.2.8.0"
+  "caqti.1.6.0"
+  "caqti-driver-sqlite3.1.6.0"
+  "caqti-lwt.1.6.0"
+  "cmdliner.1.1.0"
+  "conf-libev.4-12"
   "conf-libssl.3"
   "conf-pkg-config.2"
   "conf-sqlite3.1"
-  "cppo.1.6.7"
+  "cppo.1.6.8"
   "csexp.1.5.1"
-  "cstruct.6.0.0"
+  "cstruct.6.0.1"
   "cudf.0.9-1"
-  "digestif.1.0.0"
-  "dune.2.8.5"
-  "dune-configurator.2.8.5"
-  "duration.0.1.3"
+  "digestif.1.1.0"
+  "dune.2.9.3"
+  "dune-configurator.2.9.3"
+  "duration.0.2.0"
   "easy-format.1.3.2"
-  "eqaf.0.7"
-  "extlib.1.7.7-1"
-  "faraday.0.7.2"
-  "faraday-lwt.0.7.2"
-  "faraday-lwt-unix.0.7.2"
-  "fix.20201120"
-  "fmt.0.8.9"
+  "eqaf.0.8"
+  "extlib.1.7.8"
+  "faraday.0.8.1"
+  "faraday-lwt.0.8.1"
+  "faraday-lwt-unix.0.8.1"
+  "fix.20220121"
+  "fmt.0.9.0"
   "graphql.0.13.0"
   "graphql-lwt.0.13.0"
   "graphql_parser.0.13.0"
   "hmap.0.8.1"
   "ke.0.4"
   "logs.0.7.0"
-  "lwt.5.4.0"
-  "lwt_ppx.2.0.2"
+  "lwt.5.5.0"
+  "lwt_ppx.2.0.3"
   "lwt_ssl.1.1.3"
-  "magic-mime.1.1.3"
-  "markup.1.0.0-1"
-  "menhir.20210419"
-  "menhirLib.20210419"
-  "menhirSdk.20210419"
+  "magic-mime.1.2.0"
+  "markup.1.0.2"
+  "menhir.20220210"
+  "menhirLib.20220210"
+  "menhirSdk.20220210"
   "merlin-extend.0.6"
-  "mirage-crypto.0.10.1"
-  "mirage-crypto-rng.0.10.1"
+  "mirage-clock.4.1.0"
+  "mirage-crypto.0.10.5"
+  "mirage-crypto-rng.0.10.5"
   "mmap.1.1.0"
-  "mtime.1.2.0"
+  "mtime.1.3.0"
   "multipart-form-data.0.3.0"
-  "multipart_form.git"
+  "multipart_form.0.4.0"
+  "multipart_form-lwt.0.4.0"
   "ocaml.4.12.0"
   "ocaml-base-compiler.4.12.0"
-  "ocaml-compiler-libs.v0.12.3"
+  "ocaml-compiler-libs.v0.12.4"
   "ocaml-config.2"
-  "ocaml-migrate-parsetree.2.1.0"
+  "ocaml-migrate-parsetree.2.3.0"
   "ocaml-options-vanilla.1"
   "ocaml-syntax-shims.1.0.0"
-  "ocamlbuild.0.14.0"
-  "ocamlfind.1.9.1"
+  "ocamlbuild.0.14.1"
+  "ocamlfind.1.9.3"
   "ocamlgraph.2.0.0"
-  "ocplib-endian.1.1"
+  "ocplib-endian.1.2"
   "octavius.1.2.2"
-  "opam-core.2.1.0~beta4"
-  "opam-file-format.2.1.2"
-  "opam-format.2.1.0~beta4"
-  "opam-installer.2.1.0~beta4"
-  "pecu.0.5"
+  "opam-core.2.1.2"
+  "opam-file-format.2.1.3"
+  "opam-format.2.1.2"
+  "opam-installer.2.1.2"
+  "pecu.0.6"
   "ppx_derivers.1.2.1"
-  "ppx_js_style.v0.14.0"
+  "ppx_js_style.v0.14.1"
   "ppx_yojson_conv.v0.14.0"
   "ppx_yojson_conv_lib.v0.14.0"
-  "ppxlib.0.22.0"
-  "prettym.0.0.1"
+  "ppxlib.0.24.0"
+  "prettym.0.0.2"
   "psq.0.2.0"
-  "ptime.0.8.5"
-  "re.1.9.0"
+  "ptime.0.8.6"
+  "re.1.10.3"
   "reason.3.7.0"
   "result.1.5"
-  "rresult.0.6.0"
+  "rresult.0.7.0"
   "seq.base"
   "sexplib0.v0.14.0"
-  "sqlite3.5.0.3"
+  "sqlite3.5.1.0"
   "ssl.0.5.10"
   "stdlib-shims.0.3.0"
   "stringext.1.6.0"
-  "topkg.1.0.3"
+  "topkg.1.0.5"
   "tyxml.4.5.0"
   "tyxml-jsx.4.5.0"
   "tyxml-ppx.4.5.0"
   "tyxml-syntax.4.5.0"
   "uchar.0.0.2"
-  "unstrctrd.0.2"
+  "unstrctrd.0.3"
   "uri.4.2.0"
-  "uutf.1.0.2"
+  "uutf.1.0.3"
   "yojson.1.7.0"
 ]
-pinned: "multipart_form.git"
-package "multipart_form" {
-  opam-version: "2.0"
-  version: "git"
-  synopsis: "Multipart-form: RFC2183, RFC2388 & RFC7578"
-  description: """
-Implementation of RFC7578 in OCaml
-
-Returning values from forms: multipart/form-data"""
-  maintainer: "Romain Calascibetta <romain.calascibetta@gmail.com>"
-  authors: "Romain Calascibetta <romain.calascibetta@gmail.com>"
-  license: "MIT"
-  homepage: "https://github.com/dinosaure/multipart_form"
-  doc: "https://dinosaure.github.io/multipart_form/"
-  bug-reports: "https://github.com/dinosaure/multipart_form/issues"
-  depends: [
-    "ocaml" {>= "4.08.0"}
-    "dune" {>= "2.0.0"}
-    "angstrom" {>= "0.14.0"}
-    "base64"
-    "unstrctrd" {>= "0.2"}
-    "rresult"
-    "uutf"
-    "stdlib-shims"
-    "pecu" {>= "0.4"}
-    "lwt"
-    "prettym"
-    "fmt"
-    "logs"
-    "ke" {>= "0.4"}
-    "alcotest" {with-test}
-    "rosetta" {with-test}
-    "bigarray-compat" {>= "1.0.0"}
-    "bigstringaf" {>= "0.7.0"}
-    "result" {>= "1.5"}
-  ]
-  build: [
-    ["dune" "build" "-p" name "-j" jobs]
-    ["dune" "runtest" "-p" name "-j" jobs] {with-test}
-  ]
-  dev-repo: "git+https://github.com/dinosaure/multipart_form.git"
-  url {
-    src:
-      "git+https://github.com/dinosaure/multipart_form.git#8f5b6cb77af1a385155b0aeac40437dba6e56577"
-  }
-}
diff --git a/example/z-playground/sandbox/ocaml/server.eml.ml b/example/z-playground/sandbox/ocaml/server.eml.ml
index 4876aa13..b346a09e 100644
--- a/example/z-playground/sandbox/ocaml/server.eml.ml
+++ b/example/z-playground/sandbox/ocaml/server.eml.ml
@@ -4,4 +4,3 @@ let () =
   @@ Dream.router [
     Dream.get "/" (fun _ -> Dream.html Playground.welcome);
   ]
-  @@ Dream.not_found
diff --git a/example/z-playground/sandbox/reason/server.eml.re b/example/z-playground/sandbox/reason/server.eml.re
index 03f3fbca..38f9cefa 100644
--- a/example/z-playground/sandbox/reason/server.eml.re
+++ b/example/z-playground/sandbox/reason/server.eml.re
@@ -4,4 +4,3 @@ let () =
   @@ Dream.router([
     Dream.get("/", _ => Dream.html(Playground.welcome)),
   ])
-  @@ Dream.not_found
diff --git a/example/z-playground/server/playground.ml b/example/z-playground/server/playground.ml
index 39f3c111..52a7e665 100644
--- a/example/z-playground/server/playground.ml
+++ b/example/z-playground/server/playground.ml
@@ -125,7 +125,7 @@ let init_client socket content =
     "payload", `String content;
   ]
   |> Yojson.Basic.to_string
-  |> Dream.write socket
+  |> Dream.send socket
 
 let validate_id sandbox =
   String.length sandbox > 0 && Dream.from_base64url sandbox <> None
@@ -144,7 +144,7 @@ type session = {
   mutable sandbox : string;
   syntax : syntax;
   eml : bool;
-  socket : Dream.response;
+  socket : Dream.websocket;
 }
 
 let allocated_ports =
@@ -198,7 +198,7 @@ let client_log ?(add_newline = false) session message =
     "payload", `String message;
   ]
   |> Yojson.Basic.to_string
-  |> Dream.write session.socket
+  |> Dream.send session.socket
 
 let build_sandbox sandbox syntax eml =
   let dune =
@@ -268,7 +268,7 @@ let started session port =
     "port", `Int port;
   ]
   |> Yojson.Basic.to_string
-  |> Dream.write session.socket
+  |> Dream.send session.socket
 
 let rec make_container_id () =
   let candidate = Dream.random 9 |> Dream.to_base64url in
@@ -308,7 +308,7 @@ let run session =
 
 let kill session =
   let%lwt () = kill_container session in
-  Dream.close session.socket
+  Dream.close_websocket session.socket
 
 
 
@@ -350,7 +350,7 @@ let lock_sandbox sandbox f =
       Lwt.return_unit)
 
 let rec listen session =
-  match%lwt Dream.read session.socket with
+  match%lwt Dream.receive session.socket with
   | None ->
     Dream.info (fun log -> log "WebSocket closed by client");
     kill session
@@ -533,7 +533,7 @@ let () =
        nice error handling here, because a valid client won't trigger them. If
        they occur, they are harmless to the server. *)
     Dream.get "/socket" (fun request ->
-      match Dream.query "sandbox" request with
+      match Dream.query request "sandbox" with
       | None -> Dream.empty `Bad_Request
       | Some sandbox ->
       match validate_id sandbox with
@@ -555,8 +555,7 @@ let () =
     Dream.get "/:id" playground_handler;
     Dream.get "/:id/**" playground_handler;
 
-  ]
-  @@ Dream.not_found;
+  ];
 
   Dream.log "Killing all containers";
   Sys.command "docker kill $(docker ps -q)" |> ignore;
diff --git a/example/z-playground/server/sync.sh b/example/z-playground/server/sync.sh
index 43b1db92..0a7e835b 100644
--- a/example/z-playground/server/sync.sh
+++ b/example/z-playground/server/sync.sh
@@ -8,7 +8,7 @@ DIR=playground/example/z-playground
 
 rsync -v $HOST:$DIR/package-lock.json $HOST:$DIR/opam-switch . || true
 rsync -rlv --exclude node_modules \
-  ../../dream.opam ../../dune-project ../../src $HOST:playground
+  ../../dream*.opam ../../dune-project ../../src $HOST:playground
 ssh $HOST "mkdir -p $DIR"
 rsync -rlv . $HOST:$DIR
 
@@ -49,17 +49,18 @@ example h-sql
 example i-graphql
 example j-stream
 example k-websocket
-example w-graphql-subscription
+example w-query
 example w-flash
-example w-content-security-policy
+example w-tyxml
+example w-chat
+example w-graphql-subscription
 example w-long-polling
-example w-multipart-dump
-example w-query
 example w-server-sent-events
 example w-template-stream
-example w-tyxml
+example w-advanced-template
 example w-upload-stream
-example w-chat
+example w-content-security-policy
+example w-multipart-dump
 touch ./sync-temp/sandbox/w-tyxml/no-eml
 mv ./sync-temp/sandbox/w-tyxml/server.eml.ml \
   ./sync-temp/sandbox/w-tyxml/server.ml
@@ -77,6 +78,7 @@ function example_re {
 example_re r-hello
 example_re r-template
 example_re r-template-stream
+example_re r-advanced-template
 example_re r-graphql
 example_re r-tyxml
 touch ./sync-temp/sandbox/r-tyxml/no-eml
@@ -97,7 +99,7 @@ set +x
 
 echo
 echo "If this is the first sync, run as playground@$HOST in ~/playground:"
-echo "  opam install --deps-only ."
+echo "  opam install --deps-only ./dream-pure.opam ./dream-httpaf.opam ./dream.opam"
 echo "  opam switch export opam-switch"
 echo "  npm install"
 echo "Then, as root@$HOST:"

From 77fb36b1e8a8523404f5e0ea328147b4f959a1c7 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 14:17:38 +0300
Subject: [PATCH 160/312] Test and optimize Dream.normalize_method

---
 src/pure/method.ml                | 15 ++++++----
 src/pure/status.ml                |  2 --
 test/expect/pure/method/method.ml | 49 +++++++++++++++++++++++++++++++
 3 files changed, 59 insertions(+), 7 deletions(-)

diff --git a/src/pure/method.ml b/src/pure/method.ml
index 75197043..38771e5d 100644
--- a/src/pure/method.ml
+++ b/src/pure/method.ml
@@ -48,13 +48,18 @@ let string_to_method = function
   | "PATCH" -> `PATCH
   | method_ -> `Method method_
 
-(* TODO Test this. *)
-(* TODO Technically, this does one allocation in case the string can't be
-   converted to a variant, which can be saved by inlining string_to_method.
-   However, this is probably extremely rare. *)
 let normalize_method method_ =
   match (method_ :> method_) with
-  | `Method method_ -> string_to_method method_
+  | `Method "GET" -> `GET
+  | `Method "POST" -> `POST
+  | `Method "PUT" -> `PUT
+  | `Method "DELETE" -> `DELETE
+  | `Method "HEAD" -> `HEAD
+  | `Method "CONNECT" -> `CONNECT
+  | `Method "OPTIONS" -> `OPTIONS
+  | `Method "TRACE" -> `TRACE
+  | `Method "PATCH" -> `PATCH
+  | `Method _ as method_ -> method_
   | method_ -> method_
 
 let methods_equal method_1 method_2 =
diff --git a/src/pure/status.ml b/src/pure/status.ml
index 973d8db0..677fc421 100644
--- a/src/pure/status.ml
+++ b/src/pure/status.ml
@@ -285,8 +285,6 @@ let status_to_string status =
   | None, `Status code -> string_of_int code
   | _ -> "Unknown" [@coverage off] (* Should be impossible. *)
 
-(* TODO This could also be optimized to save one allocation for `Status. *)
-(* TODO Test specifically this function. *)
 let normalize_status status =
   match (status :> status) with
   | `Status code -> int_to_status code
diff --git a/test/expect/pure/method/method.ml b/test/expect/pure/method/method.ml
index e40e6ace..15adce98 100644
--- a/test/expect/pure/method/method.ml
+++ b/test/expect/pure/method/method.ml
@@ -65,6 +65,55 @@ let%expect_test _ =
     string "get"
     string "FOO" |}]
 
+let normalize method_ =
+  let result = Dream.normalize_method method_ in
+  match result with
+  | `Method method_ ->
+    Printf.printf "%S\n" method_
+  | _ ->
+    Printf.printf "`%s\n" (Dream.method_to_string result)
+
+let%expect_test _ =
+  normalize `GET;
+  normalize (`Method "GET");
+  normalize (`Method "get");
+  normalize `POST;
+  normalize (`Method "POST");
+  normalize `PUT;
+  normalize (`Method "PUT");
+  normalize `DELETE;
+  normalize (`Method "DELETE");
+  normalize `HEAD;
+  normalize (`Method "HEAD");
+  normalize `CONNECT;
+  normalize (`Method "CONNECT");
+  normalize `OPTIONS;
+  normalize (`Method "OPTIONS");
+  normalize `TRACE;
+  normalize (`Method "TRACE");
+  normalize `PATCH;
+  normalize (`Method "PATCH");
+  [%expect {|
+    `GET
+    `GET
+    "get"
+    `POST
+    `POST
+    `PUT
+    `PUT
+    `DELETE
+    `DELETE
+    `HEAD
+    `HEAD
+    `CONNECT
+    `CONNECT
+    `OPTIONS
+    `OPTIONS
+    `TRACE
+    `TRACE
+    `PATCH
+    `PATCH |}]
+
 let equal method_1 method_2 =
   Printf.printf "%B\n" (Dream.methods_equal method_1 method_2)
 

From 24dff54482d52845e4ebc1f93cfd7480cd0dcd20 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:01:33 +0300
Subject: [PATCH 161/312] Tweak formats.ml

---
 src/pure/formats.ml          | 14 ++++----------
 src/pure/formats.mli         |  1 -
 src/server/router.ml         |  2 +-
 test/expect/server/router.ml |  3 ++-
 4 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/src/pure/formats.ml b/src/pure/formats.ml
index bf7c83ac..a90759a1 100644
--- a/src/pure/formats.ml
+++ b/src/pure/formats.ml
@@ -48,7 +48,6 @@ let from_cookie s =
    specially. This might not be important, however, if user agents treat cookies
    as opaque, because then only Dream has to deal with its own cookies. *)
 
-(* TODO Reasonable, secure defaults. *)
 let to_set_cookie
     ?expires ?max_age ?domain ?path ?secure ?http_only ?same_site name value =
 
@@ -58,8 +57,8 @@ let to_set_cookie
     | Some time ->
       let weekday =
         match Ptime.weekday time with
-        | `Sun -> "Sun" | `Mon -> "Mon" | `Tue -> "Tue" | `Wed -> "Wed" | `Thu -> "Thu"
-        | `Fri -> "Fri" | `Sat -> "Sat"
+        | `Sun -> "Sun" | `Mon -> "Mon" | `Tue -> "Tue" | `Wed -> "Wed"
+        | `Thu -> "Thu" | `Fri -> "Fri" | `Sat -> "Sat"
       in
       let ((y, m, d), ((hh, mm, ss), _tz_offset_s)) = Ptime.to_date_time time in
       let month =
@@ -69,8 +68,8 @@ let to_set_cookie
         | 11 -> "Nov" | 12 -> "Dec"
         | _ -> assert false
       in
-      (* [Ptime.to_date_time] docs give range 0..60 for [ss], accounting for leap
-         seconds. However, RFC 6265 §5.1.1 states:
+      (* [Ptime.to_date_time] docs give range 0..60 for [ss], accounting for
+         leap seconds. However, RFC 6265 §5.1.1 states:
 
          5.  Abort these steps and fail to parse the cookie-date if:
 
@@ -204,11 +203,6 @@ let rec drop_trailing_slash = function
   | component::components ->
     component::(drop_trailing_slash components)
 
-(* TODO Currently used mainly for debugging; needs to be replaced by an escaping
-   function. *)
-let make_path path =
-  "/" ^ (String.concat "/" path)
-
 let to_path ?(relative = false) ?(international = true) components =
   let rec filter_empty_components = function
     | ""::(_::_ as path) -> filter_empty_components path
diff --git a/src/pure/formats.mli b/src/pure/formats.mli
index e7f74869..b06fa5ef 100644
--- a/src/pure/formats.mli
+++ b/src/pure/formats.mli
@@ -21,7 +21,6 @@ val split_target : string -> string * string
 val from_path : string -> string list
 val to_path : ?relative:bool -> ?international:bool -> string list -> string
 val drop_trailing_slash : string list -> string list
-val make_path : string list -> string
 val text_html : string
 val application_json : string
 
diff --git a/src/server/router.ml b/src/server/router.ml
index 09be5f85..49d46227 100644
--- a/src/server/router.ml
+++ b/src/server/router.ml
@@ -198,7 +198,7 @@ let internal_prefix request =
   | None -> []
 
 let prefix request =
-  Formats.make_path (List.rev (internal_prefix request))
+  Formats.to_path (List.rev (internal_prefix request))
 
 let set_prefix request prefix =
   Message.set_field request prefix_field prefix
diff --git a/test/expect/server/router.ml b/test/expect/server/router.ml
index 27b48c8a..ff38d935 100644
--- a/test/expect/server/router.ml
+++ b/test/expect/server/router.ml
@@ -19,7 +19,8 @@ let () =
 
 let path request =
   Dream.path request
-  |> Dream_pure.Formats.make_path
+  |> String.concat "/"
+  |> fun path -> "/" ^ path
 
 
 

From 38d89e4f23e825e2a536d5f8ee36f2c8c97180b3 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:09:05 +0300
Subject: [PATCH 162/312] Test Dream.pipeline

---
 src/pure/message.ml                 |  7 ------
 src/pure/message.mli                |  3 ---
 test/expect/pure/message/dune       |  5 ++++
 test/expect/pure/message/message.ml | 38 +++++++++++++++++++++++++++++
 4 files changed, 43 insertions(+), 10 deletions(-)
 create mode 100644 test/expect/pure/message/dune
 create mode 100644 test/expect/pure/message/message.ml

diff --git a/src/pure/message.ml b/src/pure/message.ml
index afd8357b..33d918ff 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -166,7 +166,6 @@ let has_header message name =
 let add_header message name value =
   message.headers <- message.headers @ [(name, value)]
 
-(* TODO Can optimize this if the header is not found? *)
 let drop_header message name =
   let name = String.lowercase_ascii name in
   message.headers <-
@@ -202,8 +201,6 @@ let write stream chunk =
     (fun () -> Lwt.wakeup_later resolver ());
   promise
 
-(* TODO How are remote closes actually handled? There is no way for http/af to
-   report them to the user application through the writer. *)
 let flush stream =
   let promise, resolver = Lwt.wait () in
   Stream.flush
@@ -213,7 +210,6 @@ let flush stream =
     (Lwt.wakeup_later resolver);
   promise
 
-(* TODO Should close even be promise-valued? *)
 let close stream =
   Stream.close stream 1000;
   Lwt.return_unit
@@ -241,7 +237,6 @@ let rec pipeline middlewares handler =
   match middlewares with
   | [] -> handler
   | middleware::more -> middleware (pipeline more handler)
-(* TODO Test pipelien after the List.rev fiasco. *)
 
 
 
@@ -298,8 +293,6 @@ let set_body message body =
 
 
 
-(* TODO Once the higher-level WebSocket API is settled, no longer store the
-   server stream. *)
 let websocket_field =
   new_field ~name:"dream.websocket" ()
 
diff --git a/src/pure/message.mli b/src/pure/message.mli
index 7ec6dfc4..c5a4ba27 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -79,9 +79,6 @@ val set_server_stream : 'a message -> Stream.stream -> unit
 
 
 
-(* TODO Is there any reason not to have a separate WebSocket type? Would we want
-   to do anything with a WebSocket that we normally do with responses? The
-   answer is no... It's easier to have a separate type. *)
 val create_websocket : response -> (Stream.stream * Stream.stream)
 val get_websocket : response -> (Stream.stream * Stream.stream) option
 val close_websocket : ?code:int -> Stream.stream * Stream.stream -> unit promise
diff --git a/test/expect/pure/message/dune b/test/expect/pure/message/dune
new file mode 100644
index 00000000..3157b0c5
--- /dev/null
+++ b/test/expect/pure/message/dune
@@ -0,0 +1,5 @@
+(library
+ (name test_expect_pure_message)
+ (libraries test_expect_pure)
+ (inline_tests)
+ (preprocess (pps lwt_ppx ppx_expect)))
diff --git a/test/expect/pure/message/message.ml b/test/expect/pure/message/message.ml
new file mode 100644
index 00000000..bbeae946
--- /dev/null
+++ b/test/expect/pure/message/message.ml
@@ -0,0 +1,38 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2022 Anton Bachin *)
+
+
+
+let%expect_test _ =
+  let handler _ =
+    print_endline "handler";
+    Dream.empty `OK
+  in
+  let inner_middleware handler request =
+    print_endline "inner middleware: request";
+    let%lwt response = handler request in
+    print_endline "inner middleware: response";
+    Lwt.return response
+  in
+  let outer_middleware handler request =
+    print_endline "outer middleware: request";
+    let%lwt response = handler request in
+    print_endline "outer middleware: response";
+    Lwt.return response
+  in
+  let server =
+    Dream.pipeline [
+      outer_middleware;
+      inner_middleware
+    ]
+    @@ handler
+  in
+  ignore (Lwt_main.run (server (Dream.request "")));
+  [%expect {|
+    outer middleware: request
+    inner middleware: request
+    handler
+    inner middleware: response
+    outer middleware: response |}]

From a929404aefe8fa855f5f75348fbc0ba45d4ed990 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:13:44 +0300
Subject: [PATCH 163/312] Inline body field into HTTP message record

---
 src/pure/message.ml | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/src/pure/message.ml b/src/pure/message.ml
index 33d918ff..77c49b2e 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -44,6 +44,7 @@ type 'a message = {
   mutable headers : (string * string) list;
   mutable client_stream : Stream.stream;
   mutable server_stream : Stream.stream;
+  mutable body : string promise option;
   mutable fields : Fields.t;
 }
 
@@ -84,6 +85,7 @@ let request
     headers;
     client_stream;
     server_stream;
+    body = None;
     fields = Fields.empty;
   }
 
@@ -124,6 +126,7 @@ let response ?status ?code ?(headers = []) client_stream server_stream =
     headers;
     client_stream;
     server_stream;
+    body = None;
     fields = Fields.empty;
   }
 
@@ -266,14 +269,8 @@ let fold_fields f initial message =
 
 (* Whole-body access *)
 
-(* TODO Show the value somehow. *)
-let body_field : string promise field =
-  new_field
-    ~name:"dream.body"
-    ()
-
 let body message =
-  match field message body_field with
+  match message.body with
   | Some body_promise -> body_promise
   | None ->
     let stream =
@@ -282,11 +279,11 @@ let body message =
       | Response -> message.client_stream
     in
     let body_promise = Stream.read_until_close stream in
-    set_field message body_field body_promise;
+    message.body <- Some body_promise;
     body_promise
 
 let set_body message body =
-  set_field message body_field (Lwt.return body);
+  message.body <- Some (Lwt.return body);
   match message.kind with
   | Request -> message.server_stream <- Stream.string body
   | Response -> message.client_stream <- Stream.string body

From 9f9caeab0d04b7806b7249b787a014faeeba3e44 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:14:44 +0300
Subject: [PATCH 164/312] message.ml: move body functions in the file

---
 src/pure/message.ml | 46 ++++++++++++++++++++++-----------------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/src/pure/message.ml b/src/pure/message.ml
index 77c49b2e..489b738d 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -187,6 +187,29 @@ let sort_headers headers =
 
 
 
+(* Whole-body access *)
+
+let body message =
+  match message.body with
+  | Some body_promise -> body_promise
+  | None ->
+    let stream =
+      match message.kind with
+      | Request -> message.server_stream
+      | Response -> message.client_stream
+    in
+    let body_promise = Stream.read_until_close stream in
+    message.body <- Some body_promise;
+    body_promise
+
+let set_body message body =
+  message.body <- Some (Lwt.return body);
+  match message.kind with
+  | Request -> message.server_stream <- Stream.string body
+  | Response -> message.client_stream <- Stream.string body
+
+
+
 (* Streams *)
 
 let read stream =
@@ -267,29 +290,6 @@ let fold_fields f initial message =
 
 
 
-(* Whole-body access *)
-
-let body message =
-  match message.body with
-  | Some body_promise -> body_promise
-  | None ->
-    let stream =
-      match message.kind with
-      | Request -> message.server_stream
-      | Response -> message.client_stream
-    in
-    let body_promise = Stream.read_until_close stream in
-    message.body <- Some body_promise;
-    body_promise
-
-let set_body message body =
-  message.body <- Some (Lwt.return body);
-  match message.kind with
-  | Request -> message.server_stream <- Stream.string body
-  | Response -> message.client_stream <- Stream.string body
-
-
-
 let websocket_field =
   new_field ~name:"dream.websocket" ()
 

From e76e3855fff7d87ba5ca46454af07dcd4760d09f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:18:29 +0300
Subject: [PATCH 165/312] Inline WebSocket field into response record

---
 src/pure/message.ml | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/pure/message.ml b/src/pure/message.ml
index 489b738d..c9393086 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -32,6 +32,7 @@ type client = {
 
 type server = {
   status : Status.status;
+  mutable websocket : (Stream.stream * Stream.stream) option;
 }
 
 type kind =
@@ -122,6 +123,7 @@ let response ?status ?code ?(headers = []) client_stream server_stream =
     kind = Response;
     specific = {
       status;
+      websocket = None;
     };
     headers;
     client_stream;
@@ -290,20 +292,17 @@ let fold_fields f initial message =
 
 
 
-let websocket_field =
-  new_field ~name:"dream.websocket" ()
-
 let create_websocket response =
   let in_reader, in_writer = Stream.pipe ()
   and out_reader, out_writer = Stream.pipe () in
   let client_stream = Stream.stream out_reader in_writer
   and server_stream = Stream.stream in_reader out_writer in
   let websocket = (client_stream, server_stream) in
-  set_field response websocket_field websocket;
+  response.specific.websocket <- Some websocket;
   websocket
 
 let get_websocket response =
-  field response websocket_field
+  response.specific.websocket
 
 let close_websocket ?(code = 1000) (client_stream, server_stream) =
   Stream.close client_stream code;

From 55c4d0f8368fa21e83b25272f35d424ad29d1ce3 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:19:25 +0300
Subject: [PATCH 166/312] message.ml: move WebSocket functions in the file

---
 src/pure/message.ml | 72 ++++++++++++++++++++++-----------------------
 1 file changed, 36 insertions(+), 36 deletions(-)

diff --git a/src/pure/message.ml b/src/pure/message.ml
index c9393086..082dda76 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -256,42 +256,6 @@ let set_server_stream message server_stream =
 
 
 
-(* Middleware *)
-
-let no_middleware handler request =
-  handler request
-
-let rec pipeline middlewares handler =
-  match middlewares with
-  | [] -> handler
-  | middleware::more -> middleware (pipeline more handler)
-
-
-
-(* Custom fields *)
-
-type 'a field = 'a Fields.key
-
-let new_field ?name ?show_value () =
-  Fields.Key.create {name; show_value}
-
-let field message key =
-  Fields.find key message.fields
-
-let set_field message key value =
-  message.fields <- Fields.add key value message.fields
-
-let fold_fields f initial message =
-  Fields.fold (fun (B (key, value)) accumulator ->
-    match Fields.Key.info key with
-    | {name = Some name; show_value = Some show_value} ->
-      f name (show_value value) accumulator
-    | _ -> accumulator)
-    message.fields
-    initial
-
-
-
 let create_websocket response =
   let in_reader, in_writer = Stream.pipe ()
   and out_reader, out_writer = Stream.pipe () in
@@ -401,3 +365,39 @@ let send ?text_or_binary ?end_of_message stream data =
     ~exn:(fun exn -> Lwt.wakeup_later_exn resolver exn)
     (fun () -> Lwt.wakeup_later resolver ());
   promise
+
+
+
+(* Middleware *)
+
+let no_middleware handler request =
+  handler request
+
+let rec pipeline middlewares handler =
+  match middlewares with
+  | [] -> handler
+  | middleware::more -> middleware (pipeline more handler)
+
+
+
+(* Custom fields *)
+
+type 'a field = 'a Fields.key
+
+let new_field ?name ?show_value () =
+  Fields.Key.create {name; show_value}
+
+let field message key =
+  Fields.find key message.fields
+
+let set_field message key value =
+  message.fields <- Fields.add key value message.fields
+
+let fold_fields f initial message =
+  Fields.fold (fun (B (key, value)) accumulator ->
+    match Fields.Key.info key with
+    | {name = Some name; show_value = Some show_value} ->
+      f name (show_value value) accumulator
+    | _ -> accumulator)
+    message.fields
+    initial

From 67e91f150182fd16a88db8a2febaf8b6c528fbec Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:21:55 +0300
Subject: [PATCH 167/312] Add Dream.set_status

---
 src/dream.ml         | 1 +
 src/dream.mli        | 3 +++
 src/pure/message.ml  | 5 ++++-
 src/pure/message.mli | 1 +
 4 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/dream.ml b/src/dream.ml
index 3e3db2ce..65314a47 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -119,6 +119,7 @@ let json = Helpers.json
 let redirect = Helpers.redirect
 let empty = Helpers.empty
 let status = Message.status
+let set_status = Message.set_status
 
 
 
diff --git a/src/dream.mli b/src/dream.mli
index 51fa0b11..c7cf246c 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -519,6 +519,9 @@ val empty :
 val status : response -> status
 (** Response {!type-status}. For example, [`OK]. *)
 
+val set_status : response -> status -> unit
+(** Sets the response status. *)
+
 
 
 (** {1 Headers} *)
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 082dda76..5a494fc8 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -31,7 +31,7 @@ type client = {
    some middleware to decide which headers to add. *)
 
 type server = {
-  status : Status.status;
+  mutable status : Status.status;
   mutable websocket : (Stream.stream * Stream.stream) option;
 }
 
@@ -135,6 +135,9 @@ let response ?status ?code ?(headers = []) client_stream server_stream =
 let status response =
   response.specific.status
 
+let set_status response status =
+  response.specific.status <- status
+
 
 
 (* Headers *)
diff --git a/src/pure/message.mli b/src/pure/message.mli
index c5a4ba27..53cde6e4 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -48,6 +48,7 @@ val response :
     response
 
 val status : response -> Status.status
+val set_status : response -> Status.status -> unit
 
 
 

From 26210451005a4459728580d6eebc90586bf8cb33 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:45:27 +0300
Subject: [PATCH 168/312] Handle Content-Length at the HTTP/1 adapter

---
 src/dream.ml                 |  5 +----
 src/dream.mli                | 14 --------------
 src/http/http.ml             | 12 +++---------
 src/pure/message.ml          | 22 ++++++++++++++++++++++
 src/pure/message.mli         |  2 ++
 src/server/content_length.ml | 25 -------------------------
 src/server/helpers.ml        | 25 ++++++++++++-------------
 7 files changed, 40 insertions(+), 65 deletions(-)
 delete mode 100644 src/server/content_length.ml

diff --git a/src/dream.ml b/src/dream.ml
index 65314a47..51d94c46 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -8,7 +8,6 @@
 module Catch = Dream__server.Catch
 module Cipher = Dream__cipher.Cipher
 module Cookie = Dream__server.Cookie
-module Content_length = Dream__server.Content_length
 module Csrf = Dream__server.Csrf
 module Echo = Dream__server.Echo
 module Error_handler = Dream__http.Error_handler
@@ -354,7 +353,6 @@ let catch = Catch.catch
 let run = Http.run
 let serve = Http.serve
 let lowercase_headers = Lowercase_headers.lowercase_headers
-let content_length = Content_length.content_length
 let with_site_prefix = Site_prefix.with_site_prefix
 
 
@@ -391,8 +389,7 @@ let request = Helpers.request_with_body
    corresponding tests. *)
 let test ?(prefix = "") handler request =
   let app =
-    Content_length.content_length
-    @@ Site_prefix.with_site_prefix prefix
+    Site_prefix.with_site_prefix prefix
     @@ handler
   in
 
diff --git a/src/dream.mli b/src/dream.mli
index c7cf246c..5d2dd039 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2297,7 +2297,6 @@ val serve :
     {[
       Dream.run ~builtins:false
       @@ Dream.lowercase_headers
-      @@ Dream.content_length
       @@ Dream.catch ~error_handler
       @@ my_app
     ]}
@@ -2308,19 +2307,6 @@ val serve :
 val lowercase_headers : middleware
 (** Lowercases response headers for HTTP/2 requests. *)
 
-val content_length : middleware
-(** If the request has {!Dream.version} [(1, _)], then...
-
-    - if the response does not have [Content-Length:] and the body is a string,
-      sets [Content-Length:] to the string's length, or
-    - if the response does not have [Transfer-Encoding:] and the body is a
-      stream, sets [Transfer-Encoding: chunked].
-
-    This is built in because an application cannot be expected to decide
-    including these headers in the face of transparent HTTP/2 upgrades. The
-    headers are necessary in HTTP/1, and forbidden or redundant and difficult to
-    use in HTTP/2. *)
-
 val with_site_prefix : string -> middleware
 (** Removes the given prefix from the path in each request, and adds it to the
     request prefix. Responds with [502 Bad Gateway] if the path does not have
diff --git a/src/http/http.ml b/src/http/http.ml
index def04770..6558cbd6 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -6,7 +6,6 @@
 
 
 module Catch = Dream__server.Catch
-module Content_length = Dream__server.Content_length
 module Helpers = Dream__server.Helpers
 module Log = Dream__server.Log
 module Lowercase_headers = Dream__server.Lowercase_headers
@@ -123,18 +122,13 @@ let wrap_handler
            2. Upon failure to establish a WebSocket, the function is called to
               transmit the resulting error response. *)
         let forward_response response =
+          Message.set_content_length_headers response;
+
           let headers =
             Httpaf.Headers.of_list (Message.all_headers response) in
 
-          (* let version =
-            match Dream.version_override response with
-            | None -> None
-            | Some (major, minor) -> Some Httpaf.Version.{major; minor}
-          in *)
           let status =
             to_httpaf_status (Message.status response) in
-          (* let reason =
-            Dream.reason_override response in *)
 
           let httpaf_response =
             Httpaf.Response.create ~headers status in
@@ -246,6 +240,7 @@ let wrap_handler_h2
         (* Extract the Dream response's headers. *)
 
         let forward_response response =
+          Message.drop_content_length_headers response;
           let headers =
             H2.Headers.of_list (Message.all_headers response) in
           let status =
@@ -386,7 +381,6 @@ let ocaml_tls = {
 let built_in_middleware error_handler =
   Message.pipeline [
     Lowercase_headers.lowercase_headers;
-    Content_length.content_length;
     Catch.catch (Error_handler.app error_handler);
   ]
 
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 5a494fc8..eca9f0d2 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -213,6 +213,28 @@ let set_body message body =
   | Request -> message.server_stream <- Stream.string body
   | Response -> message.client_stream <- Stream.string body
 
+let set_content_length_headers message =
+  if has_header message "Content-Length" then
+    ()
+  else
+    if has_header message "Transfer-Encoding" then
+      ()
+    else
+      match message.body with
+      | None ->
+        add_header message "Transfer-Encoding" "chunked"
+      | Some body_promise ->
+        match Lwt.poll body_promise with
+        | None ->
+          add_header message "Transfer-Encoding" "chunked"
+        | Some body ->
+          let length = string_of_int (String.length body) in
+          add_header message "Content-Length" length
+
+let drop_content_length_headers message =
+  drop_header message "Content-Length";
+  drop_header message "Transfer-Encoding"
+
 
 
 (* Streams *)
diff --git a/src/pure/message.mli b/src/pure/message.mli
index 53cde6e4..4eb37c06 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -66,6 +66,8 @@ val sort_headers : (string * string) list -> (string * string) list
 
 val body : 'a message -> string promise
 val set_body : 'a message -> string -> unit
+val set_content_length_headers : 'a message -> unit
+val drop_content_length_headers : 'a message -> unit
 
 
 
diff --git a/src/server/content_length.ml b/src/server/content_length.ml
deleted file mode 100644
index dc33bd4b..00000000
--- a/src/server/content_length.ml
+++ /dev/null
@@ -1,25 +0,0 @@
-(* This file is part of Dream, released under the MIT license. See LICENSE.md
-   for details, or visit https://github.com/aantron/dream.
-
-   Copyright 2021 Anton Bachin *)
-
-
-
-module Message = Dream_pure.Message
-
-
-
-(* TODO Also mind Connection: close. *)
-(* TODO Test in integration with HTTP/2. *)
-(* TODO This could be renamed transfer_encoding at this point. *)
-(* Add a Content-Length header to HTTP 1.x responses that have a fixed body but
-   don't yet have the header. *)
-let content_length next_handler request =
-  if fst (Message.version request) <> 1 then
-    next_handler request
-  else
-    let%lwt (response : Message.response) = next_handler request in
-    if not (Message.has_header response "Transfer-Encoding") then
-      if not (Message.has_header response "Content-Length") then
-        Message.add_header response "Transfer-Encoding" "chunked";
-    Lwt.return response
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index e3d339f6..f65a780f 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -60,25 +60,25 @@ let request_with_body ?method_ ?target ?version ?headers body =
 
 
 
-let html ?status ?code ?headers body =
+let response_with_body ?status ?code ?headers body =
   let response =
-    Message.response ?status ?code ?headers (Stream.string body) Stream.null in
+    Message.response ?status ?code ?headers Stream.null Stream.null in
+  Message.set_body response body;
+  response
+
+let respond ?status ?code ?headers body =
+  Lwt.return (response_with_body ?status ?code ?headers body)
+
+let html ?status ?code ?headers body =
+  let response = response_with_body ?status ?code ?headers body in
   Message.set_header response "Content-Type" Formats.text_html;
   Lwt.return response
 
 let json ?status ?code ?headers body =
-  let response =
-    Message.response ?status ?code ?headers (Stream.string body) Stream.null in
+  let response = response_with_body ?status ?code ?headers body in
   Message.set_header response "Content-Type" Formats.application_json;
   Lwt.return response
 
-let response_with_body ?status ?code ?headers body =
-  Message.response ?status ?code ?headers (Stream.string body) Stream.null
-
-let respond ?status ?code ?headers body =
-  Message.response ?status ?code ?headers (Stream.string body) Stream.null
-  |> Lwt.return
-
 (* TODO Actually use the request and extract the site prefix. *)
 let redirect ?status ?code ?headers _request location =
   let status = (status :> Status.redirection option) in
@@ -87,8 +87,7 @@ let redirect ?status ?code ?headers _request location =
     | None, None -> Some (`See_Other)
     | _ -> status
   in
-  let response =
-    Message.response ?status ?code ?headers Stream.empty Stream.null in
+  let response = response_with_body ?status ?code ?headers "" in
   Message.set_header response "Location" location;
   Lwt.return response
 

From 5f50acf779c77ec639da22f6f202849a18d31b45 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:49:58 +0300
Subject: [PATCH 169/312] Move header lowercasing to the HTTP/2 adapter

---
 src/dream.ml                    |  2 --
 src/dream.mli                   |  4 ----
 src/http/http.ml                |  3 +--
 src/pure/message.ml             |  7 +++++++
 src/pure/message.mli            |  1 +
 src/server/lowercase_headers.ml | 23 -----------------------
 6 files changed, 9 insertions(+), 31 deletions(-)
 delete mode 100644 src/server/lowercase_headers.ml

diff --git a/src/dream.ml b/src/dream.ml
index 51d94c46..d8de2089 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -17,7 +17,6 @@ module Formats = Dream_pure.Formats
 module Graphql = Dream__graphql.Graphql
 module Helpers = Dream__server.Helpers
 module Http = Dream__http.Http
-module Lowercase_headers = Dream__server.Lowercase_headers
 module Message = Dream_pure.Message
 module Method = Dream_pure.Method
 module Origin_referrer_check = Dream__server.Origin_referrer_check
@@ -352,7 +351,6 @@ let catch = Catch.catch
 
 let run = Http.run
 let serve = Http.serve
-let lowercase_headers = Lowercase_headers.lowercase_headers
 let with_site_prefix = Site_prefix.with_site_prefix
 
 
diff --git a/src/dream.mli b/src/dream.mli
index 5d2dd039..afd04d3c 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2296,7 +2296,6 @@ val serve :
 
     {[
       Dream.run ~builtins:false
-      @@ Dream.lowercase_headers
       @@ Dream.catch ~error_handler
       @@ my_app
     ]}
@@ -2304,9 +2303,6 @@ val serve :
     The middleware can be replaced with work-alikes, or omitted to use Dream as
     a fairly raw abstraction layer over low-level HTTP libraries. *)
 
-val lowercase_headers : middleware
-(** Lowercases response headers for HTTP/2 requests. *)
-
 val with_site_prefix : string -> middleware
 (** Removes the given prefix from the path in each request, and adds it to the
     request prefix. Responds with [502 Bad Gateway] if the path does not have
diff --git a/src/http/http.ml b/src/http/http.ml
index 6558cbd6..81ca366b 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -8,7 +8,6 @@
 module Catch = Dream__server.Catch
 module Helpers = Dream__server.Helpers
 module Log = Dream__server.Log
-module Lowercase_headers = Dream__server.Lowercase_headers
 module Message = Dream_pure.Message
 module Method = Dream_pure.Method
 module Status = Dream_pure.Status
@@ -241,6 +240,7 @@ let wrap_handler_h2
 
         let forward_response response =
           Message.drop_content_length_headers response;
+          Message.lowercase_headers response;
           let headers =
             H2.Headers.of_list (Message.all_headers response) in
           let status =
@@ -380,7 +380,6 @@ let ocaml_tls = {
 
 let built_in_middleware error_handler =
   Message.pipeline [
-    Lowercase_headers.lowercase_headers;
     Catch.catch (Error_handler.app error_handler);
   ]
 
diff --git a/src/pure/message.ml b/src/pure/message.ml
index eca9f0d2..52bb6280 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -190,6 +190,13 @@ let set_all_headers message headers =
 let sort_headers headers =
   List.stable_sort (fun (name, _) (name', _) -> compare name name') headers
 
+let lowercase_headers message =
+  let headers =
+    message.headers
+    |> List.map (fun (name, value) -> String.lowercase_ascii name, value)
+  in
+  message.headers <- headers
+
 
 
 (* Whole-body access *)
diff --git a/src/pure/message.mli b/src/pure/message.mli
index 4eb37c06..76d73e4a 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -61,6 +61,7 @@ val drop_header : 'a message -> string -> unit
 val set_header : 'a message -> string -> string -> unit
 val set_all_headers : 'a message -> (string * string) list -> unit
 val sort_headers : (string * string) list -> (string * string) list
+val lowercase_headers : 'a message -> unit
 
 
 
diff --git a/src/server/lowercase_headers.ml b/src/server/lowercase_headers.ml
deleted file mode 100644
index b3ff584f..00000000
--- a/src/server/lowercase_headers.ml
+++ /dev/null
@@ -1,23 +0,0 @@
-(* This file is part of Dream, released under the MIT license. See LICENSE.md
-   for details, or visit https://github.com/aantron/dream.
-
-   Copyright 2021 Anton Bachin *)
-
-
-
-module Message = Dream_pure.Message
-
-
-
-(* TODO This middleware might need to be applied right in the h2 adapter,
-   because error handlers might generate headers that cannot be rewritten
-   inside the normal stack. *)
-(* TODO This can be optimized not to convert a header if it is already
-   lowercase. Another option is to use memoization to reduce GC pressure. *)
-let lowercase_headers inner_handler request =
-  let%lwt response = inner_handler request in
-  if fst (Message.version request) <> 1 then
-    Message.all_headers response
-    |> List.map (fun (name, value) -> String.lowercase_ascii name, value)
-    |> Message.set_all_headers response;
-  Lwt.return response

From 2162ec7e37cd715fec5110fa874650988a017b53 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 16:56:20 +0300
Subject: [PATCH 170/312] Delete request protocol version field

---
 src/dream.ml              |  5 -----
 src/dream.mli             | 19 -------------------
 src/http/error_handler.ml |  6 ++----
 src/http/http.ml          |  8 ++------
 src/pure/message.ml       | 14 --------------
 src/pure/message.mli      |  3 ---
 src/server/helpers.ml     | 10 ++++------
 7 files changed, 8 insertions(+), 57 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index d8de2089..f16f9a86 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -99,7 +99,6 @@ let method_ = Message.method_
 let target = Message.target
 let prefix = Router.prefix
 let path = Router.path
-let version = Message.version
 let set_client = Helpers.set_client
 let set_method_ = Message.set_method_
 let query = Query.query
@@ -408,10 +407,6 @@ let with_method_ method_ message =
   Message.set_method_ message method_;
   message
 
-let with_version version message =
-  Message.set_version message version;
-  message
-
 let with_path path message =
   Router.set_path message path;
   message
diff --git a/src/dream.mli b/src/dream.mli
index afd04d3c..cabe818c 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -383,15 +383,6 @@ https://github.com/aantron/dream/issues
 (* TODO If not removing this, move it to section Routing. *)
 (**/**)
 
-(**/**)
-val version : request -> int * int
-[@@ocaml.deprecated
-"Protocol version access is being removed from the API. Comment at
-https://github.com/aantron/dream/issues
-"]
-(** Protocol version. [(1, 1)] for HTTP/1.1 and [(2, 0)] for HTTP/2. *)
-(**/**)
-
 val set_client : request -> string -> unit
 (** Replaces the client. See {!Dream.val-client}. *)
 
@@ -423,15 +414,6 @@ https://github.com/aantron/dream/issues
 (** Replaces the path. See {!Dream.val-path}. *)
 (**/**)
 
-(**/**)
-val with_version : int * int -> request -> request
-[@@ocaml.deprecated
-"Protocol version access is being removed from the API. Comment at
-https://github.com/aantron/dream/issues
-"]
-(** Replaces the version. See {!Dream.version}. *)
-(**/**)
-
 val query : request -> string -> string option
 (** First query parameter with the given name. See
     {{:https://tools.ietf.org/html/rfc3986#section-3.4} RFC 3986 §3.4} and
@@ -2564,7 +2546,6 @@ https://aantron.github.io/dream/#val-set_field
 val request :
   ?method_:[< method_ ] ->
   ?target:string ->
-  ?version:int * int ->
   ?headers:(string * string) list ->
     string -> request
 (** [Dream.request body] creates a fresh request with the given body for
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index f9c49efb..e24c28a4 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -90,11 +90,9 @@ let dump (error : Catch.error) =
   begin match error.request with
   | None -> ()
   | Some request ->
-    let major, minor = Message.version request in
-    p "\n\n%s %s HTTP/%i.%i"
+    p "\n\n%s %s"
       (Method.method_to_string (Message.method_ request))
-      (Message.target request)
-      major minor;
+      (Message.target request);
 
     Message.all_headers request
     |> List.iter (fun (name, value) -> p "\n%s: %s" name value);
diff --git a/src/http/http.ml b/src/http/http.ml
index 81ca366b..a74508b7 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -69,8 +69,6 @@ let wrap_handler
       to_dream_method httpaf_request.meth in
     let target =
       httpaf_request.target in
-    let version =
-      (httpaf_request.version.major, httpaf_request.version.minor) in
     let headers =
       Httpaf.Headers.to_list httpaf_request.headers in
 
@@ -94,7 +92,7 @@ let wrap_handler
       Stream.stream body Stream.no_writer in
 
     let request : Message.request =
-      Helpers.request ~client ~method_ ~target ~tls ~version ~headers body in
+      Helpers.request ~client ~method_ ~target ~tls ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -198,8 +196,6 @@ let wrap_handler_h2
       to_dream_method httpaf_request.meth in
     let target =
       httpaf_request.target in
-    let version =
-      (2, 0) in
     let headers =
       H2.Headers.to_list httpaf_request.headers in
 
@@ -219,7 +215,7 @@ let wrap_handler_h2
       Stream.stream body Stream.no_writer in
 
     let request : Message.request =
-      Helpers.request ~client ~method_ ~target ~tls ~version ~headers body in
+      Helpers.request ~client ~method_ ~target ~tls ~headers body in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
diff --git a/src/pure/message.ml b/src/pure/message.ml
index 52bb6280..e96da42c 100644
--- a/src/pure/message.ml
+++ b/src/pure/message.ml
@@ -22,13 +22,7 @@ module Fields = Hmap.Make (struct type 'a t = 'a field_metadata end)
 type client = {
   mutable method_ : Method.method_;
   mutable target : string;
-  mutable version : int * int;
 }
-(* TODO Get rid of the version field completely? At least don't expose it in
-   Dream. It is only used internally on the server side to add the right
-   Content-Length, etc., headers. But even that can be moved out of the
-   middleware and into transport so that the version field is not necessary for
-   some middleware to decide which headers to add. *)
 
 type server = {
   mutable status : Status.status;
@@ -66,7 +60,6 @@ type middleware = handler -> handler
 let request
     ?method_
     ?(target = "/")
-    ?(version = 1, 1)
     ?(headers = [])
     client_stream
     server_stream =
@@ -81,7 +74,6 @@ let request
     specific = {
       method_;
       target;
-      version;
     };
     headers;
     client_stream;
@@ -96,18 +88,12 @@ let method_ request =
 let target request =
   request.specific.target
 
-let version request =
-  request.specific.version
-
 let set_method_ request method_ =
   request.specific.method_ <- (method_ :> Method.method_)
 
 let set_target request target =
   request.specific.target <- target
 
-let set_version request version =
-  request.specific.version <- version
-
 
 
 (* Responses *)
diff --git a/src/pure/message.mli b/src/pure/message.mli
index 76d73e4a..b05da05d 100644
--- a/src/pure/message.mli
+++ b/src/pure/message.mli
@@ -24,7 +24,6 @@ type middleware = handler -> handler
 val request :
   ?method_:[< Method.method_ ] ->
   ?target:string ->
-  ?version:int * int ->
   ?headers:(string * string) list ->
   Stream.stream ->
   Stream.stream ->
@@ -32,10 +31,8 @@ val request :
 
 val method_ : request -> Method.method_
 val target : request -> string
-val version : request -> int * int
 val set_method_ : request -> [< Method.method_ ] -> unit
 val set_target : request -> string -> unit
-val set_version : request -> int * int -> unit
 
 
 
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index f65a780f..c10f483f 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -46,17 +46,15 @@ let set_tls request tls =
 
 
 
-let request ~client ~method_ ~target ~tls ~version ~headers server_stream =
+let request ~client ~method_ ~target ~tls ~headers server_stream =
   let request =
-    Message.request
-      ~method_ ~target ~version ~headers Stream.null server_stream in
+    Message.request ~method_ ~target ~headers Stream.null server_stream in
   set_client request client;
   set_tls request tls;
   request
 
-let request_with_body ?method_ ?target ?version ?headers body =
-  Message.request
-    ?method_ ?target ?version ?headers Stream.null (Stream.string body)
+let request_with_body ?method_ ?target ?headers body =
+  Message.request ?method_ ?target ?headers Stream.null (Stream.string body)
 
 
 

From 515def2875333527abcd89e70823f1610595dc0b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 13 Feb 2022 22:42:30 +0300
Subject: [PATCH 171/312] Clean up the docs build slightly

---
 docs/web/postprocess/index.ml | 5 ++---
 src/dream.mli                 | 8 ++++----
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/docs/web/postprocess/index.ml b/docs/web/postprocess/index.ml
index f028d57f..3b685ca5 100644
--- a/docs/web/postprocess/index.ml
+++ b/docs/web/postprocess/index.ml
@@ -1569,8 +1569,8 @@ let decrypt_replacement = {|
 |}
 
 let request_expected = {|<div class="spec value" id="val-request">
- <a href="#val-request" class="anchor"></a><code><span><span class="keyword">val</span> request : <span>?method_:<span>[&lt; <a href="#type-method_">method_</a> ]</span> <span class="arrow">-&gt;</span></span> <span>?target:string <span class="arrow">-&gt;</span></span> <span>?version:<span>(int * int)</span> <span class="arrow">-&gt;</span></span>
-<span>?headers:<span><span>(string * string)</span> list</span> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <a href="#type-request">request</a></span></code>
+ <a href="#val-request" class="anchor"></a><code><span><span class="keyword">val</span> request : <span>?method_:<span>[&lt; <a href="#type-method_">method_</a> ]</span> <span class="arrow">-&gt;</span></span> <span>?target:string <span class="arrow">-&gt;</span></span> <span>?headers:<span><span>(string * string)</span> list</span>
+<span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <a href="#type-request">request</a></span></code>
 </div>
 |}
 
@@ -1578,7 +1578,6 @@ let request_replacement = {|
 <pre><span class="keyword">val</span> request :
   <span class="optional">?method_:[&lt; <a href="#type-method_">method_</a> ] ->
   ?target:string ->
-  ?version:int * int ->
   ?headers:(string * string) list -></span>
     string -> <a href="#type-request">request</a>
 </pre>|}
diff --git a/src/dream.mli b/src/dream.mli
index cabe818c..77801b02 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1107,8 +1107,8 @@ type multipart_form =
 
     If a file field has zero files when submitted, browsers send
     ["field-name", [Some ""; ""]]. {!Dream.multipart} replaces this with
-    ["field-name", []]. Use the advanced interface {!Dream.upload} for the raw
-    behavior.
+    ["field-name", []]. Use the advanced interface, {!Dream.val-upload}, for the
+    raw behavior.
 
     Non-file fields always have one value, which might be the empty string.
 
@@ -1158,8 +1158,8 @@ val upload : request -> part option promise
     again. [None] from {!Dream.val-upload} indicates that all parts have been
     received.
 
-    {!Dream.upload} does not verify a CSRF token. There are several ways to add
-    CSRF protection for an upload stream, including:
+    {!Dream.val-upload} does not verify a CSRF token. There are several ways to
+    add CSRF protection for an upload stream, including:
 
     - Generate a CSRF token with {!Dream.csrf_tag}. Check for
       [`Field ("dream.csrf", token)] during upload and call

From a88a8cecbf2f31e39118991908cbeffc00742982 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 14 Feb 2022 05:58:57 +0300
Subject: [PATCH 172/312] Makefile: fix coverage cleaning in Dune workspace

---
 Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index f165437d..6b7e2f98 100644
--- a/Makefile
+++ b/Makefile
@@ -7,10 +7,11 @@ watch :
 	@dune build -p dream-pure,dream-httpaf,dream --no-print-directory -w
 
 TEST ?= test
+ROOT := $(shell [ -f ../dune-workspace ] && echo .. || echo .)
 
 .PHONY : test
 test :
-	@find . -name '*.coverage' | xargs rm -f
+	@find $(ROOT) -name '*.coverage' | xargs rm -f
 	@dune build --no-print-directory \
 	  --instrument-with bisect_ppx --force @$(TEST)/runtest
 	@bisect-ppx-report html

From 3d9c7c334686bdcbf0dedecf645bbff65b77148c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 14 Feb 2022 07:00:10 +0300
Subject: [PATCH 173/312] s/m-mirage/w-mirage/

---
 .github/workflows/test.yml                  | 2 +-
 example/{m-mirage => w-mirage}/README.md    | 0
 example/{m-mirage => w-mirage}/_tags        | 0
 example/{m-mirage => w-mirage}/config.ml    | 0
 example/{m-mirage => w-mirage}/unikernel.ml | 0
 5 files changed, 1 insertion(+), 1 deletion(-)
 rename example/{m-mirage => w-mirage}/README.md (100%)
 rename example/{m-mirage => w-mirage}/_tags (100%)
 rename example/{m-mirage => w-mirage}/config.ml (100%)
 rename example/{m-mirage => w-mirage}/unikernel.ml (100%)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cfd39a91..9392d572 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -41,7 +41,7 @@ jobs:
         set -e
         set -x
 
-        EXAMPLES=$(find example -maxdepth 1 -type d -not -name "m-mirage*"| grep -v "^example/0" | grep -v "^example$" | sort)
+        EXAMPLES=$(find example -maxdepth 1 -type d -not -name "w-mirage*"| grep -v "^example/0" | grep -v "^example$" | sort)
         shopt -s nullglob
 
         for EXAMPLE in $EXAMPLES
diff --git a/example/m-mirage/README.md b/example/w-mirage/README.md
similarity index 100%
rename from example/m-mirage/README.md
rename to example/w-mirage/README.md
diff --git a/example/m-mirage/_tags b/example/w-mirage/_tags
similarity index 100%
rename from example/m-mirage/_tags
rename to example/w-mirage/_tags
diff --git a/example/m-mirage/config.ml b/example/w-mirage/config.ml
similarity index 100%
rename from example/m-mirage/config.ml
rename to example/w-mirage/config.ml
diff --git a/example/m-mirage/unikernel.ml b/example/w-mirage/unikernel.ml
similarity index 100%
rename from example/m-mirage/unikernel.ml
rename to example/w-mirage/unikernel.ml

From 67cd3b01688a0fbcd68ddddc8f6feca7460d92f3 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 14 Feb 2022 07:38:14 +0300
Subject: [PATCH 174/312] Rename template logic examples

---
 example/{r-advanced-template => r-template-logic}/README.md   | 0
 example/{r-advanced-template => r-template-logic}/dune        | 0
 .../{r-advanced-template => r-template-logic}/dune-project    | 0
 example/{r-advanced-template => r-template-logic}/esy.json    | 0
 .../{r-advanced-template => r-template-logic}/template.eml.re | 3 +--
 example/{w-advanced-template => w-template-logic}/README.md   | 0
 example/{w-advanced-template => w-template-logic}/dune        | 0
 .../{w-advanced-template => w-template-logic}/dune-project    | 0
 example/{w-advanced-template => w-template-logic}/esy.json    | 0
 .../{w-advanced-template => w-template-logic}/template.eml.ml | 0
 example/z-playground/server/sync.sh                           | 4 ++--
 11 files changed, 3 insertions(+), 4 deletions(-)
 rename example/{r-advanced-template => r-template-logic}/README.md (100%)
 rename example/{r-advanced-template => r-template-logic}/dune (100%)
 rename example/{r-advanced-template => r-template-logic}/dune-project (100%)
 rename example/{r-advanced-template => r-template-logic}/esy.json (100%)
 rename example/{r-advanced-template => r-template-logic}/template.eml.re (93%)
 rename example/{w-advanced-template => w-template-logic}/README.md (100%)
 rename example/{w-advanced-template => w-template-logic}/dune (100%)
 rename example/{w-advanced-template => w-template-logic}/dune-project (100%)
 rename example/{w-advanced-template => w-template-logic}/esy.json (100%)
 rename example/{w-advanced-template => w-template-logic}/template.eml.ml (100%)

diff --git a/example/r-advanced-template/README.md b/example/r-template-logic/README.md
similarity index 100%
rename from example/r-advanced-template/README.md
rename to example/r-template-logic/README.md
diff --git a/example/r-advanced-template/dune b/example/r-template-logic/dune
similarity index 100%
rename from example/r-advanced-template/dune
rename to example/r-template-logic/dune
diff --git a/example/r-advanced-template/dune-project b/example/r-template-logic/dune-project
similarity index 100%
rename from example/r-advanced-template/dune-project
rename to example/r-template-logic/dune-project
diff --git a/example/r-advanced-template/esy.json b/example/r-template-logic/esy.json
similarity index 100%
rename from example/r-advanced-template/esy.json
rename to example/r-template-logic/esy.json
diff --git a/example/r-advanced-template/template.eml.re b/example/r-template-logic/template.eml.re
similarity index 93%
rename from example/r-advanced-template/template.eml.re
rename to example/r-template-logic/template.eml.re
index 71d6fb74..afa2ae80 100644
--- a/example/r-advanced-template/template.eml.re
+++ b/example/r-template-logic/template.eml.re
@@ -43,7 +43,6 @@ let () =
   @@ Dream.router([
     Dream.get("/", _ => render_home(tasks) |> Dream.html),
     Dream.get("/:task", request =>
-      Dream.param(request, "task") |> render_task(tasks) |> Dream.html
+      Dream.param("task", request) |> render_task(tasks) |> Dream.html
     ),
   ]);
-
diff --git a/example/w-advanced-template/README.md b/example/w-template-logic/README.md
similarity index 100%
rename from example/w-advanced-template/README.md
rename to example/w-template-logic/README.md
diff --git a/example/w-advanced-template/dune b/example/w-template-logic/dune
similarity index 100%
rename from example/w-advanced-template/dune
rename to example/w-template-logic/dune
diff --git a/example/w-advanced-template/dune-project b/example/w-template-logic/dune-project
similarity index 100%
rename from example/w-advanced-template/dune-project
rename to example/w-template-logic/dune-project
diff --git a/example/w-advanced-template/esy.json b/example/w-template-logic/esy.json
similarity index 100%
rename from example/w-advanced-template/esy.json
rename to example/w-template-logic/esy.json
diff --git a/example/w-advanced-template/template.eml.ml b/example/w-template-logic/template.eml.ml
similarity index 100%
rename from example/w-advanced-template/template.eml.ml
rename to example/w-template-logic/template.eml.ml
diff --git a/example/z-playground/server/sync.sh b/example/z-playground/server/sync.sh
index 0a7e835b..0589c339 100644
--- a/example/z-playground/server/sync.sh
+++ b/example/z-playground/server/sync.sh
@@ -56,8 +56,8 @@ example w-chat
 example w-graphql-subscription
 example w-long-polling
 example w-server-sent-events
+example w-template-logic
 example w-template-stream
-example w-advanced-template
 example w-upload-stream
 example w-content-security-policy
 example w-multipart-dump
@@ -77,8 +77,8 @@ function example_re {
 }
 example_re r-hello
 example_re r-template
+example_re r-template-logic
 example_re r-template-stream
-example_re r-advanced-template
 example_re r-graphql
 example_re r-tyxml
 touch ./sync-temp/sandbox/r-tyxml/no-eml

From 3ada17803010d72aff22faab89b235b2d22c4768 Mon Sep 17 00:00:00 2001
From: Yawar Amin <yawar.amin@gmail.com>
Date: Mon, 14 Feb 2022 17:44:30 -0500
Subject: [PATCH 175/312] Split content-type header value

Some clients add a suffix to the value, e.g.
`"application/x-www-form-urlencoded; charset=UTF-8"`. In this case we want to
throw away the extra data before checking the content-type.
---
 src/server/form.ml | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/src/server/form.ml b/src/server/form.ml
index d9f4284b..36322568 100644
--- a/src/server/form.ml
+++ b/src/server/form.ml
@@ -54,17 +54,24 @@ let sort_and_check_form ~now to_value form request =
     log.warning (fun log -> log ~request "CSRF token duplicated");
     Lwt.return (`Many_tokens form)
 
+let wrong_content_type request =
+  log.warning (fun log -> log ~request
+    "Content-Type not 'application/x-www-form-urlencoded'");
+  Lwt.return `Wrong_content_type
+
 let form ?(csrf = true) ~now request =
   match Message.header request "Content-Type" with
-  | Some "application/x-www-form-urlencoded" ->
+  | Some content_type ->
+    begin match String.split_on_char ';' content_type with
+    | "application/x-www-form-urlencoded"::_ ->
     let%lwt body = Message.body request in
     let form = Dream_pure.Formats.from_form_urlencoded body in
     if csrf then
     sort_and_check_form ~now (fun string -> string) form request
     else
     Lwt.return (`Ok (sort form))
-
+    | _ ->
+      wrong_content_type request
+    end
   | _ ->
-    log.warning (fun log -> log ~request
-      "Content-Type not 'application/x-www-form-urlencoded'");
-    Lwt.return `Wrong_content_type
+    wrong_content_type request

From 6009610e494e35459751bbbf25d920357b4f17cb Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 15 Feb 2022 08:41:08 +0300
Subject: [PATCH 176/312] Clarify code after preceding and earlier commits

Function Form.form has received several edits over the past months, and
it needed an overall cleanup, especially since Dream itself has also
changed internal layout and some conventions.
---
 src/server/form.ml | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/server/form.ml b/src/server/form.ml
index 36322568..98f4299f 100644
--- a/src/server/form.ml
+++ b/src/server/form.ml
@@ -5,6 +5,7 @@
 
 
 
+module Formats = Dream_pure.Formats
 module Message = Dream_pure.Message
 
 
@@ -61,17 +62,16 @@ let wrong_content_type request =
 
 let form ?(csrf = true) ~now request =
   match Message.header request "Content-Type" with
+  | None ->
+    wrong_content_type request
   | Some content_type ->
-    begin match String.split_on_char ';' content_type with
+    match String.split_on_char ';' content_type with
     | "application/x-www-form-urlencoded"::_ ->
-    let%lwt body = Message.body request in
-    let form = Dream_pure.Formats.from_form_urlencoded body in
-    if csrf then
-    sort_and_check_form ~now (fun string -> string) form request
-    else
-    Lwt.return (`Ok (sort form))
+      let%lwt body = Message.body request in
+      let form = Formats.from_form_urlencoded body in
+      if csrf then
+        sort_and_check_form ~now (fun string -> string) form request
+      else
+        Lwt.return (`Ok (sort form))
     | _ ->
       wrong_content_type request
-    end
-  | _ ->
-    wrong_content_type request

From ec9643b7319f4d1076b3c7959336b1cf66b11d8d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 15 Feb 2022 08:31:14 +0300
Subject: [PATCH 177/312] Improve examples

---
 README.md                                | 48 +++++++----------
 example/7-template/README.md             |  4 +-
 example/README.md                        | 11 +++-
 example/b-session/README.md              |  8 +--
 example/c-cookie/README.md               |  4 +-
 example/d-form/README.md                 | 33 ++++++------
 example/k-websocket/README.md            | 11 ++++
 example/r-template-files/README.md       | 58 +++++++++++----------
 example/r-template-files/server.re       | 13 +++--
 example/r-template-logic/README.md       | 62 +++++++++++++---------
 example/r-template-logic/template.eml.re | 42 ++++++++-------
 example/r-template/README.md             |  2 +
 example/w-flash/README.md                | 15 +++---
 example/w-mirage/README.md               |  4 +-
 example/w-template-files/README.md       | 31 +++++------
 example/w-template-logic/README.md       | 62 ++++++++++++----------
 example/w-template-logic/template.eml.ml | 40 +++++++--------
 example/w-tyxml/README.md                |  2 +-
 example/z-fly/README.md                  | 65 ++++++++++++------------
 example/z-fly/app.ml                     |  2 +-
 example/z-fly/esy.json                   |  2 +-
 src/dream.mli                            |  8 +--
 22 files changed, 283 insertions(+), 244 deletions(-)

diff --git a/README.md b/README.md
index 3e7d7e69..c49ae777 100644
--- a/README.md
+++ b/README.md
@@ -47,8 +47,8 @@ Dream is **one flat module** in **one package**, documented on
 - [**Cryptography**][crypto] helpers, key rotation, and a chosen cipher.
 - A neat [**logger**][logging], and attention to configuring the OCaml runtime
   nicely.
-- [**Deployment**][deploy] instructions for **Digital Ocean** and **Heroku**,
-  with sample CI scripts.
+- [**Deployment**][deploy] instructions for **Digital Ocean**, **Heroku**, and
+  **Fly.io**, with sample CI scripts.
 
 <br>
 
@@ -110,49 +110,37 @@ into.
 
 ## Quick start
 
-<br>
+Visit one of the first tutorials in the [online
+playground][2-middleware-playground], and read its
+[docs](https://github.com/aantron/dream/tree/master/example/2-middleware#files).
+You can get and build it locally with:
 
 <pre><b>bash -c "$(curl -fsSL https://raw.githubusercontent.com/aantron/dream/master/example/quickstart.sh)"</b></pre>
 
-<br>
-
-This downloads and runs [`quickstart.sh`][quickstart.sh], which does a
-sandboxed build of one of the first [tutorials][tutorial],
-[**`2-middleware`**][2-middleware]. It's mostly the same as:
+Most of the other [examples][tutorial] are also loaded in the playground. See
+the links on its [home page][playground].
 
-```
-git clone https://github.com/aantron/dream.git --recursive
-cd dream/example/2-middleware
-npm install esy && npx esy
-npx esy start
-```
+## esy
 
-Knowing that, you can start from any other [example][tutorial]. All of them
-include their own build commands. They don't have to be subdirectories of
-`dream` &mdash; you can copy them out to start your own project directory.
-Especially consider starting with the [full-stack examples][fullstack], which
-build both a Dream server and a JavaScript client.
+Visit any of the [examples][tutorial], such as
+[**`2-middleware`**][2-middleware], and re-create the files locally. The file
+[`esy.json`](https://github.com/aantron/dream/blob/master/example/2-middleware/esy.json)
+shows how to depend on Dream. All of the examples are installed by running `npx
+esy`, and started with `npx esy start`.
 
 ### opam
 
 ```
-opam install dream.1.0.0~alpha2
+opam install dream
 ```
 
-After that, go to one of the examples, such as [**`1-hello`**][1-hello], and
-build it:
+After that, go to any of the [examples][tutorial], such as
+[**`2-middleware`**][2-middleware], re-create the files locally, and run it:
 
 ```
-cd example/1-hello
-dune exec --root . ./hello.exe
+dune exec ./middleware.exe
 ```
 
-### Playground
-
-Most of the examples are loaded into the [playground][playground]. For instance,
-[**`2-middleware`**][2-middleware] is at
-[http://dream.as/2-middleware][2-middleware-playground].
-
 [esy-example]: https://github.com/aantron/dream/tree/master/example/w-esy#files
 [quickstart.sh]: https://github.com/aantron/dream/blob/master/example/quickstart.sh
 [esy]: https://esy.sh/
diff --git a/example/7-template/README.md b/example/7-template/README.md
index 6103fa8b..03ec529a 100644
--- a/example/7-template/README.md
+++ b/example/7-template/README.md
@@ -140,8 +140,10 @@ and not supported by Dream.
 
 **See also:**
 
-- [**`w-template-files`**](../w-template-files) moves the template into a
+- [**`w-template-files`**](../w-template-files#files) moves the template into a
   separate `.eml.html` to avoid problems with editor support.
+- [**`w-template-logic`**](../w-template-logic#files) shows how to put control
+  flow into templates.
 - [**`w-tyxml`**](../w-tyxml#files) shows how to use
   [TyXML](https://github.com/ocsigen/tyxml), a different templater that uses
   OCaml's type system to prevent emitting many kinds of invalid HTML.
diff --git a/example/README.md b/example/README.md
index 1891dd5e..87dd28d0 100644
--- a/example/README.md
+++ b/example/README.md
@@ -55,6 +55,10 @@ There are several examples showing Dream with Reason syntax.
 - [**`r-hello`**](r-hello#files) &nbsp;&mdash;&nbsp; the simplest Dream server.
 - [**`r-template`**](r-template#files) &nbsp;&mdash;&nbsp; renders HTML
   templates and protects against XSS.
+- [**`r-template-files`**](r-template-files#files) &nbsp;&mdash;&nbsp; templates
+  in separate `.html` files for better editor support.
+- [**`r-template-logic`**](r-template-logic#files) &nbsp;&mdash;&nbsp; control
+  flow inside templates.
 - [**`r-template-stream`**](r-template-stream#files) &nbsp;&mdash;&nbsp; streams
   templates as response bodies.
 - [**`r-tyxml`**](r-tyxml#files) &nbsp;&mdash;&nbsp; type-checked server-side
@@ -79,6 +83,7 @@ There are several examples showing Dream with Reason syntax.
 
 - [**`z-heroku`**](z-heroku#files) &nbsp;&mdash;&nbsp; to
   [Heroku](https://www.heroku.com).
+- [**`z-fly`**](z-fly@files) &nbsp;&mdash;&nbsp; to [Fly.io](https://fly.io/).
 - [**`z-docker-esy`**](z-docker-esy#files) &nbsp;&mdash;&nbsp; on a server,
   using Docker, with package manager esy.
 - [**`z-docker-opam`**](z-docker-opam#files) &nbsp;&mdash;&nbsp; on a server,
@@ -97,8 +102,10 @@ if something is missing!
 
 <br>
 
-- [**`w-template-files`**](w-template-files#files) &nbsp;&mdash;&nbsp;
-  templates in separate `.html` files for better editor support.
+- [**`w-template-files`**](w-template-files#files) &nbsp;&mdash;&nbsp; templates
+  in separate `.html` files for better editor support.
+- [**`w-template-logic`**](w-template-logic#files) &nbsp;&mdash;&nbsp; control
+  flow inside templates.
 - [**`w-graphql-subscription`**](w-graphql-subscription#files)
   &nbsp;&mdash;&nbsp; GraphQL subscriptions.
 - [**`w-postgres`**](w-postgres#files) &nbsp;&mdash;&nbsp; connects to a
diff --git a/example/b-session/README.md b/example/b-session/README.md
index cd35ebfe..2c93fdb3 100644
--- a/example/b-session/README.md
+++ b/example/b-session/README.md
@@ -62,10 +62,10 @@ There are two other session back ends, which are persistent:
   stores session data in encrypted cookies. That is, session data is stored on
   clients, rather than on the server. You can replace `Dream.memory_sessions`
   with `Dream.cookie_sessions` and it will work right away. However, if you
-  want to be able to decrypt sessions set by previous runs of the server, pass
-  `~secret:"my-secret"` to
-  [`Dream.run`](https://aantron.github.io/dream/#val-run) so that it doesn't
-  generate a random key each time.
+  want to be able to decrypt sessions set by previous runs of the server, use
+  the [`Dream.set_secret`](https://aantron.github.io/dream/#val-set_secret)
+  middleware before `Dream.cookie_sessions`. If you don't, the server will be
+  using a different random encryption key each time it starts.
 - [`Dream.sql_sessions`](https://aantron.github.io/dream/#val-sql_sessions)
   stores sessions in a database. It is shown in example
   [**`h-sql`**](../h-sql#files).
diff --git a/example/c-cookie/README.md b/example/c-cookie/README.md
index a6c00f9f..10c67b5d 100644
--- a/example/c-cookie/README.md
+++ b/example/c-cookie/README.md
@@ -43,7 +43,9 @@ That's because it access certain fields of the request to set some fairly
 aggressive security defaults:
 
 - Cookie encryption, for which it accesses the encryption key. This is why we
-  passed `~secret` to [`Dream.run`](https://aantron.github.io/dream/#val-run).
+  used the
+  [`Dream.set_secret`](https://aantron.github.io/dream/#val-set_secret)
+  middleware.
 - Whether the request likely came through an HTTPS connection, to set the
   [`Secure`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#restrict_access_to_cookies)
   attribute.
diff --git a/example/d-form/README.md b/example/d-form/README.md
index 44a1ff43..685093c6 100644
--- a/example/d-form/README.md
+++ b/example/d-form/README.md
@@ -53,28 +53,29 @@ Try it in the [playground](http://dream.as/d-form).
 
 <br>
 
-We wrote a literal `<form>` tag in the template, and injected a field containing
-a CSRF token into it using the
-[`Dream.csrf_tag`](https://aantron.github.io/dream/#val-csrf_tag) helper to
-generate the `<input>` tag.
+The template adds a CSRF token to the form using
+[`Dream.csrf_tag`](https://aantron.github.io/dream/#val-csrf_tag). Its output
+looks something like this:
 
 ```html
 <form method="POST" action="/">
   <input name="dream.csrf" type="hidden" value="j8vjZ6...">
-
-  <!-- The rest we actually wrote ourselves in the template! -->
   <input name="message" autofocus>
 </form>
 ```
 
-This hidden `dream.csrf` field helps to
-[prevent CSRF attacks](https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html)
-attacks against the form.
+That generated, hidden `dream.csrf` field helps to [prevent CSRF
+attacks](https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html).
+It should be the [first
+field](https://portswigger.net/web-security/csrf/tokens#how-should-csrf-tokens-be-transmitted)
+in your form.
 
-[`Dream.form`](https://aantron.github.io/dream/#val-form) expects `dream.csrf`
-and checks it. If there is anything wrong with the token,
-[`Dream.form`](https://aantron.github.io/dream/#val-form) will return a [value
-other than `` `Ok _``](https://aantron.github.io/dream/#type-form_result).
+When the form is submitted and parsed using
+[`Dream.form`](https://aantron.github.io/dream/#val-form), `Dream.form` expects
+to find the `dream.csrf` field, and checks it. If there is anything wrong with
+the CSRF token, [`Dream.form`](https://aantron.github.io/dream/#val-form) will
+return a [value other than
+`` `Ok _``](https://aantron.github.io/dream/#type-form_result).
 
 <br>
 
@@ -82,9 +83,9 @@ The form fields carried inside `` `Ok _`` are returned in sorted order, so you
 can reliably pattern-match on them.
 
 The bad token results, like `` `Expired _``, also carry the form fields. You can
-add handling for them to recover. For example, if you receive an expired form,
-you may want to resend it with some of the fields pre-filled to received
-values, so that the user can try again quickly.
+add handling for them to recover. For example, if you receive a form with an
+expired token, you may want to resend it with some of the fields pre-filled to
+received values, so that the user can try again quickly.
 
 However, do not send back any sensitive data, because *any* result other than
 `` `Ok _`` *might* indicate an attack in progress. That said, `` `Expired _``
diff --git a/example/k-websocket/README.md b/example/k-websocket/README.md
index d46853f7..b628c1db 100644
--- a/example/k-websocket/README.md
+++ b/example/k-websocket/README.md
@@ -75,4 +75,15 @@ rather than `ws://`, on the client.
 
 <br>
 
+**See also:**
+
+- [**`w-chat`**](../w-chat#files) is a simple WebSocket-based chat application.
+- [**`w-live-reload`**](../w-live-reload#files) uses WebSockets to implement
+  live reloading.
+- [**`w-graphql-subscription`**](../w-graphql-subscription) does not show a
+  WebSocket directly, but shows GraphQL subscriptions, which are implemented
+  over WebSockets.
+
+<br>
+
 [Up to the tutorial index](../#readme)
diff --git a/example/r-template-files/README.md b/example/r-template-files/README.md
index a1244ba9..0da81c31 100644
--- a/example/r-template-files/README.md
+++ b/example/r-template-files/README.md
@@ -2,20 +2,11 @@
 
 <br>
 
-While templates can be written with other code in `.re` files, they can also
-live in their own source files.  This can be useful as templates become larger,
-or when you have many templates.
-
-If your template file is mostly HTML, you can give it a name like
-`template.eml.html`, to trigger HTML syntax highlighting by your editor.
-Additionally, if you are using `ocamlformat`, the `.html` extension will
-prevent errors that come from `ocamlformat` attempting to format the syntax of
-the template.
-
-This example does just that. It splits the code of the basic template example,
-[**r-template**](../r-template#files), into two files. The first is the
+This example splits the code of the basic template example,
+[**`r-template`**](../r-template#files), into two files. The first is the
 template, in
-[`template.eml.html`](https://github.com/aantron/dream/blob/master/example/r-template-files/template.eml.html):
+[`template.eml.html`](https://github.com/aantron/dream/blob/master/example/r-template-files/template.eml.html). We use the `.html` extension because it is
+mostly HTML, and to prevent `refmt` from trying to format the file:
 
 ```html
 let render = param => {
@@ -27,22 +18,37 @@ let render = param => {
 };
 ```
 
-After preprocessing by the templater, this file becomes `template.ml`, so it
+After preprocessing by the templater, this file becomes `template.re`, so it
 defines a module `Template`, containing a function `Template.render`. We call
-this function from the main server in
-[`server.ml`](https://github.com/aantron/dream/blob/master/example/w-template-files/server.ml):
+this function from the main server module in
+[`server.ml`](https://github.com/aantron/dream/blob/master/example/r-template-files/server.re):
 
 ```reason
 let () =
-  Dream.run @@
-  Dream.logger @@
-  Dream.router([
+  Dream.run
+  @@ Dream.logger
+  @@ Dream.router([
+
     Dream.get("/:word", request =>
-      Dream.param("word", request) |> Template.render |> Dream.html
-    ),
+      Dream.param("word", request)
+      |> Template.render
+      |> Dream.html),
+
   ]);
 ```
 
+Because we are using the extension `.eml.html` rather than `.eml.re`, we now
+have to specifically tell the templater to emit Reason syntax in our
+[`dune`](https://github.com/aantron/dream/blob/master/example/r-template-files/dune)
+file:
+
+<pre><code>(rule
+ (targets template.re)
+ (deps template.eml.html)
+ (action (run dream_eml %{deps} --workspace %{workspace_root} <b>--emit-reason</b>))</code></pre>
+
+<br>
+
 <pre><code><b>$ cd example/r-template-files</b>
 <b>$ npm install esy && npx esy</b>
 <b>$ npx esy start</b></code></pre>
@@ -51,11 +57,11 @@ let () =
 
 **See also:**
 
-- [**r-template**](../r-template#files) for comments on the
-[`dune` file](https://github.com/aantron/dream/blob/master/example/w-template-files/dune).
-- [**7-template**](../7-template#files) for comments on [security
-information](https://github.com/aantron/dream/tree/master/example/7-template#security).
-- [**w-template-files**](../w-template-files) for the OCaml version of this example.
+- [**`r-template`**](../r-template#files) for the one-file version.
+- [**`7-template`**](../7-template#files) for comments on [security
+  information](../7-template#security).
+- [**`w-template-files`**](../w-template-files) for the OCaml version of this
+  example.
 
 <br>
 
diff --git a/example/r-template-files/server.re b/example/r-template-files/server.re
index 6f110705..303f0902 100644
--- a/example/r-template-files/server.re
+++ b/example/r-template-files/server.re
@@ -1,8 +1,11 @@
 let () =
-  Dream.run @@
-  Dream.logger @@
-  Dream.router([
+  Dream.run
+  @@ Dream.logger
+  @@ Dream.router([
+
     Dream.get("/:word", request =>
-      Dream.param(request, "word") |> Template.render |> Dream.html
-    ),
+      Dream.param(request, "word")
+      |> Template.render
+      |> Dream.html),
+
   ]);
diff --git a/example/r-template-logic/README.md b/example/r-template-logic/README.md
index 552a0e3f..12797069 100644
--- a/example/r-template-logic/README.md
+++ b/example/r-template-logic/README.md
@@ -1,72 +1,84 @@
-# `r-advanced-template`
+# `r-template-logic`
 
 <br>
 
-Dream templates allow for interleaving any control structures with your template code. This example shows how to do this with if statements, list iterations, and pattern matching. Although it may seem intuitive that the code somehow 'returns' the template, in reality the HTML generation happens in an imperative style. This means that any code within the template must evaluate to `unit`, and so the semicolons in this example are not optional. We use `List.iter` instead of `List.map` for a similar reason.
+Reason control expressions can be used inside Dream templates.  This example
+shows a template with a loop written with `List.iter`, an `if`-expression, and
+a `switch`-expression.
+
+It's helpful to know that template fragments are written to a buffer
+imperatively. That means that template fragments evaluate to `unit`, and the
+surrounding Reason code often needs semicolons. Templates also tend to use
+`List.iter` rather than `List.map`.
 
 ```reason
 let render_home = tasks => {
   <html>
   <body>
-    <h1>My TODO</h1>
-    <% tasks |> List.iter(((name, complete)) => { %>
+%   tasks |> List.iter(((name, complete)) => {
       <p>Task <%s name %>:
-        <% if (complete) { %>
+%       if (complete) {
           complete!
-        <% } else { %>
+%       } else {
           not complete
-        <% }; %>
+%       };
       </p>
-    <% }); %>
+%   });
   </body>
   </html>
 };
 
-
-// You can begin a line with `%` instead of using `<% ... %>`
 let render_task = (tasks, task) => {
   <html>
   <body>
-%   (switch (List.find_opt(((task_, _)) => task == task_, tasks)) {
-%   | Some((name, complete)) =>
-      <h1>TODO task: <%s name %>, complete: <%B complete %></h1>
+%   (switch (List.assoc_opt(task, tasks)) {
+%   | Some(complete) =>
+      <p>Task: <%s task %></p>
+      <p>Complete: <%B complete %></p>
 %   | None =>
-      <h1>Task not found!</h1>
+      <p>Task not found!</p>
 %   });
   </body>
   </html>
 };
 
 let tasks = [
-  ("write documentation", true),
-  ("create examples", true),
-  ("publish website", true),
-  ("profit", false),
+  ("Write documentation", true),
+  ("Create examples", true),
+  ("Publish website", true),
+  ("Profit", false),
 ];
 
 let () =
   Dream.run
   @@ Dream.logger
   @@ Dream.router([
-    Dream.get("/", _ => render_home(tasks) |> Dream.html),
+
+    Dream.get("/", _ =>
+      render_home(tasks)
+      |> Dream.html),
+
     Dream.get("/:task", request =>
-      Dream.param("task", request) |> render_task(tasks) |> Dream.html
-    ),
+      Dream.param(request, "task")
+      |> render_task(tasks)
+      |> Dream.html),
+
   ]);
 ```
 
-<pre><code><b>$ cd example/r-advanced-template</b>
+<pre><code><b>$ cd example/r-template-logic</b>
 <b>$ npm install esy && npx esy</b>
 <b>$ npx esy start</b></code></pre>
 
-Try it in the [playground](http://dream.as/r-advanced-template).
+Try it in the [playground](http://dream.as/r-template-logic).
 
 <br>
 
 **See also:**
 
-- [**`w-template**](../w-template) for more information about templates.
-- [**`w-advanced-template**](../w-advanced-template) for the OCaml version of this example.
+- [**`7-template`**](../7-template#files) for basic information about templates.
+- [**`w-template-logic`**](../w-template-logic#files) for the OCaml version
+  of this example.
 
 <br>
 
diff --git a/example/r-template-logic/template.eml.re b/example/r-template-logic/template.eml.re
index afa2ae80..f9f44f95 100644
--- a/example/r-template-logic/template.eml.re
+++ b/example/r-template-logic/template.eml.re
@@ -1,48 +1,52 @@
 let render_home = tasks => {
   <html>
   <body>
-    <h1>My TODO</h1>
-    <% tasks |> List.iter(((name, complete)) => { %>
+%   tasks |> List.iter(((name, complete)) => {
       <p>Task <%s name %>:
-        <% if (complete) { %>
+%       if (complete) {
           complete!
-        <% } else { %>
+%       } else {
           not complete
-        <% }; %>
+%       };
       </p>
-    <% }); %>
+%   });
   </body>
   </html>
 };
 
-
-// You can begin a line with `%` instead of using `<% ... %>`
 let render_task = (tasks, task) => {
   <html>
   <body>
-%   (switch (List.find_opt(((task_, _)) => task == task_, tasks)) {
-%   | Some((name, complete)) =>
-      <h1>TODO task: <%s name %>, complete: <%B complete %></h1>
+%   (switch (List.assoc_opt(task, tasks)) {
+%   | Some(complete) =>
+      <p>Task: <%s task %></p>
+      <p>Complete: <%B complete %></p>
 %   | None =>
-      <h1>Task not found!</h1>
+      <p>Task not found!</p>
 %   });
   </body>
   </html>
 };
 
 let tasks = [
-  ("write documentation", true),
-  ("create examples", true),
-  ("publish website", true),
-  ("profit", false),
+  ("Write documentation", true),
+  ("Create examples", true),
+  ("Publish website", true),
+  ("Profit", false),
 ];
 
 let () =
   Dream.run
   @@ Dream.logger
   @@ Dream.router([
-    Dream.get("/", _ => render_home(tasks) |> Dream.html),
+
+    Dream.get("/", _ =>
+      render_home(tasks)
+      |> Dream.html),
+
     Dream.get("/:task", request =>
-      Dream.param("task", request) |> render_task(tasks) |> Dream.html
-    ),
+      Dream.param(request, "task")
+      |> render_task(tasks)
+      |> Dream.html),
+
   ]);
diff --git a/example/r-template/README.md b/example/r-template/README.md
index a91bb556..e76e8baf 100644
--- a/example/r-template/README.md
+++ b/example/r-template/README.md
@@ -62,6 +62,8 @@ same.
 
 **See also:**
 
+- [**`r-template-files`**](../r-template-files#files) puts the template into a
+  separate `.eml.html` file, which can help with editor problems.
 - [**`r-template-stream`**](../r-template-stream#files) streams a template to a
   response.
 - [**`9-error`**](../9-error#files) sets up a central error template. The
diff --git a/example/w-flash/README.md b/example/w-flash/README.md
index 7c1b9976..290de182 100644
--- a/example/w-flash/README.md
+++ b/example/w-flash/README.md
@@ -38,14 +38,15 @@ let result request =
 
 The app just displays the form. The text that is entered into the form by the
 user is placed into a flash message using
-[`Dream.put_flash`](https://aantron.github.io/dream/#val-put_flash). The app
+[`Dream.add_flash_message`](https://aantron.github.io/dream/#val-add_flash_message).
+The app
 then tells the client to redirect to `/result`. The handler for `/result` calls
 the `result` template, which retrieves the flash message using
-[`Dream.flash`](https://aantron.github.io/dream/#val-put_flash) and displays it.
-We need to include
-[`Dream.flash_messages`](https://aantron.github.io/dream/#val-flash_messages) in
-our middleware stack, because that is the piece that actually puts the messages
-into cookies and reads them back out:
+[`Dream.flash_messages`](https://aantron.github.io/dream/#val-flash_messages)
+and displays it. We need to include
+[`Dream.flash`](https://aantron.github.io/dream/#val-flash) in our middleware
+stack, because that is the piece that actually puts the messages into cookies
+and reads them back out:
 
 ```ocaml
 let () =
@@ -77,7 +78,7 @@ let () =
 ```
 
 The example configures a custom log level for flash messages using
-`Dream.set_log_level`. Setting this to "debug" means the server logs
+`Dream.set_log_level`. Setting this to `` `Debug`` means the server logs
 will display a log point summarizing the flash messages on every
 request, like this:
 
diff --git a/example/w-mirage/README.md b/example/w-mirage/README.md
index 3b952b91..426aff06 100644
--- a/example/w-mirage/README.md
+++ b/example/w-mirage/README.md
@@ -1,4 +1,6 @@
-### DreamOS
+# `w-mirage`
+
+<br>
 
 This example is a simple unikernel which has a front-page and an echo route to
 repeat what the user said into the URL. This is a simple example of how to make
diff --git a/example/w-template-files/README.md b/example/w-template-files/README.md
index 56249347..fc21eb8b 100644
--- a/example/w-template-files/README.md
+++ b/example/w-template-files/README.md
@@ -2,20 +2,12 @@
 
 <br>
 
-While templates can be written with other code in `.ml` files, they can also
-live in their own source files.  This can be useful as templates become larger,
-or when you have many templates.
-
-If your template file is mostly HTML, you can give it a name like
-`template.eml.html`, to trigger HTML syntax highlighting by your editor.
-Additionally, if you are using `ocamlformat`, the `.html` extension will
-prevent errors that come from `ocamlformat` attempting to format the syntax of
-the template.
-
-This example does just that. It splits the code of the basic template example,
-[**7-template**](../7-template#files), into two files. The first is the
+This example splits the code of the basic template example,
+[**`7-template`**](../7-template#files), into two files. The first is the
 template, in
-[`template.eml.html`](https://github.com/aantron/dream/blob/master/example/w-template-files/template.eml.html):
+[`template.eml.html`](https://github.com/aantron/dream/blob/master/example/w-template-files/template.eml.html).
+We use the `.html` extension because it is mostly HTML, and to prevent
+`ocamlformat` from trying to format the file:
 
 ```html
 let render param =
@@ -28,7 +20,7 @@ let render param =
 
 After preprocessing by the templater, this file becomes `template.ml`, so it
 defines a module `Template`, containing a function `Template.render`. We call
-this function from the main server in
+this function from the main server module in
 [`server.ml`](https://github.com/aantron/dream/blob/master/example/w-template-files/server.ml):
 
 ```ocaml
@@ -54,11 +46,12 @@ let () =
 
 **See also:**
 
-- [**7-template**](../7-template#files) for comments on the
-[`dune` file](https://github.com/aantron/dream/blob/master/example/w-template-files/dune)
-and [security
-information](https://github.com/aantron/dream/tree/master/example/7-template#security).
-- [**r-template-files**](../r-template-files) for the Reason syntax version of this example.
+- [**`7-template`**](../7-template#files) for comments on the [`dune`
+  file](https://github.com/aantron/dream/blob/master/example/w-template-files/dune)
+  and [security
+  information](https://github.com/aantron/dream/tree/master/example/7-template#security).
+- [**`r-template-files`**](../r-template-files) for the Reason syntax version of
+  this example.
 
 <br>
 
diff --git a/example/w-template-logic/README.md b/example/w-template-logic/README.md
index ef0a08b8..27b4e3bb 100644
--- a/example/w-template-logic/README.md
+++ b/example/w-template-logic/README.md
@@ -1,79 +1,85 @@
-# `w-advanced-template`
+# `w-template-logic`
 
 <br>
 
-Dream templates allow for interleaving any control structures with your template code. This example shows how to do this with if statements, list iterations, and pattern matching. Although it may seem intuitive that the code somehow 'returns' the template, in reality the HTML generation happens in an imperative style. This means that any code within the template must evaluate to `unit`, and so the semicolons in this example are not optional. We use `List.iter` instead of `List.map` for a similar reason.
+OCaml control expressions can be used inside Dream templates.  This example
+shows a template with a loop written with `List.iter`, an `if`-expression, and
+a `match`-expression.
+
+It's helpful to know that template fragments are written to a buffer
+imperatively. That means that template fragments evaluate to `unit`, and the
+surrounding OCaml code often needs semicolons. Templates also tend to use
+`List.iter` rather than `List.map`.
 
 ```ocaml
-(* In OCaml, `begin ... end` is the same as `( ... )` *)
 let render_home tasks =
   <html>
   <body>
-    <h1>My TODO</h1>
-    <% tasks |> List.iter begin fun (name, complete) -> %>
+%   tasks |> List.iter begin fun (name, complete) ->
       <p>Task <%s name %>:
-        <% if complete then ( %>
+%       if complete then begin
           complete!
-        <% ) else ( %>
-          not complete
-        <% ); %>
+%       end
+%       else begin
+          not complete.
+%       end;
       </p>
-    <% end; %>
+%   end;
   </body>
   </html>
 
-
-(* You can also begin a line with `%` instead of using `<% ... %>` *)
 let render_task tasks task =
   <html>
   <body>
-%   (match List.find_opt (fun (task_, _) -> task = task_) tasks with
-%   | Some (name, complete) ->
-      <h1>TODO task: <%s name %>, complete: <%B complete %></h1>
-%   | None -> begin
-      <h1>Task not found!</h1>
-%   end);
+%   begin match List.assoc_opt task tasks with
+%   | Some complete ->
+      <p>Task: <%s task %></p>
+      <p>Complete: <%B complete %></p>
+%   | None ->
+      <p>Task not found!</p>
+%   end;
   </body>
   </html>
 
 let tasks = [
-  ("write documentation", true);
-  ("create examples", true);
-  ("publish website", true);
-  ("profit", false);
+  ("Write documentation", true);
+  ("Create examples", true);
+  ("Publish website", true);
+  ("Profit", false);
 ]
 
 let () =
   Dream.run
   @@ Dream.logger
   @@ Dream.router [
+
     Dream.get "/"
       (fun _ ->
         render_home tasks
         |> Dream.html);
 
-
     Dream.get "/:task"
       (fun request ->
-        Dream.param "task" request
+        Dream.param request "task"
         |> render_task tasks
         |> Dream.html);
 
   ]
 ```
 
-<pre><code><b>$ cd example/w-advanced-template</b>
+<pre><code><b>$ cd example/w-template-logic</b>
 <b>$ npm install esy && npx esy</b>
 <b>$ npx esy start</b></code></pre>
 
-Try it in the [playground](http://dream.as/w-advanced-template).
+Try it in the [playground](http://dream.as/w-template-logic).
 
 <br>
 
 **See also:**
 
-- [**`w-template**](../w-template) for more information about templates.
-- [**`r-advanced-template**](../r-advanced-template) for the Reason syntax version of this example.
+- [**`7-template`**](../7-template#files) for more information about templates.
+- [**`r-template-logic`**](../r-template-logic#files) for the Reason syntax
+  version of this example.
 
 <br>
 
diff --git a/example/w-template-logic/template.eml.ml b/example/w-template-logic/template.eml.ml
index 80d0bc5d..b2c60c66 100644
--- a/example/w-template-logic/template.eml.ml
+++ b/example/w-template-logic/template.eml.ml
@@ -1,51 +1,49 @@
-(* In OCaml, `begin ... end` is the same as `( ... )` *)
 let render_home tasks =
   <html>
   <body>
-    <h1>My TODO</h1>
-    <% tasks |> List.iter begin fun (name, complete) -> %>
+%   tasks |> List.iter begin fun (name, complete) ->
       <p>Task <%s name %>:
-        <% if complete then ( %>
+%       if complete then begin
           complete!
-        <% ) else ( %>
-          not complete
-        <% ); %>
+%       end
+%       else begin
+          not complete.
+%       end;
       </p>
-    <% end; %>
+%   end;
   </body>
   </html>
 
-
-(* You can also begin a line with `%` instead of using `<% ... %>` *)
 let render_task tasks task =
   <html>
   <body>
-%   (match List.find_opt (fun (task_, _) -> task = task_) tasks with
-%   | Some (name, complete) ->
-      <h1>TODO task: <%s name %>, complete: <%B complete %></h1>
-%   | None -> begin
-      <h1>Task not found!</h1>
-%   end);
+%   begin match List.assoc_opt task tasks with
+%   | Some complete ->
+      <p>Task: <%s task %></p>
+      <p>Complete: <%B complete %></p>
+%   | None ->
+      <p>Task not found!</p>
+%   end;
   </body>
   </html>
 
 let tasks = [
-  ("write documentation", true);
-  ("create examples", true);
-  ("publish website", true);
-  ("profit", false);
+  ("Write documentation", true);
+  ("Create examples", true);
+  ("Publish website", true);
+  ("Profit", false);
 ]
 
 let () =
   Dream.run
   @@ Dream.logger
   @@ Dream.router [
+
     Dream.get "/"
       (fun _ ->
         render_home tasks
         |> Dream.html);
 
-
     Dream.get "/:task"
       (fun request ->
         Dream.param request "task"
diff --git a/example/w-tyxml/README.md b/example/w-tyxml/README.md
index 1e1c815c..7da128b1 100644
--- a/example/w-tyxml/README.md
+++ b/example/w-tyxml/README.md
@@ -109,4 +109,4 @@ this, please [open an issue](https://github.com/aantron/dream/issues).
 
 <br>
 
-[Up to the tutorial index](../#examples)
+[Up to the example index](../#examples)
diff --git a/example/z-fly/README.md b/example/z-fly/README.md
index 25ff77fc..fea881ea 100644
--- a/example/z-fly/README.md
+++ b/example/z-fly/README.md
@@ -1,17 +1,22 @@
 # `z-fly`
 
+<br>
+
 This example deploys a very simple Dream
 [application](https://github.com/aantron/dream/blob/master/example/z-fly/app.ml)
-to [Fly](https://www.fly.io/), a hosting platform that scales and smartly moves your servers closer to your users. A low-usage app can be hosted for
-[free](https://fly.io/docs/about/pricing/#free-tier). Fly offers [flyctl](https://fly.io/docs/getting-started/installing-flyctl/), their CLI, that makes [deployment](https://fly.io/docs/hands-on/start/) and
-[scaling](https://fly.io/docs/reference/scaling/) super simple.
+to [Fly.io](https://www.fly.io/), a hosting platform that scales and smartly
+moves your servers closer to your users. A low-usage app can be hosted for
+[free](https://fly.io/docs/about/pricing/#free-tier). Fly.io offers
+[`flyctl`](https://fly.io/docs/getting-started/installing-flyctl/), their CLI,
+that makes [deployment](https://fly.io/docs/hands-on/start/) and
+[scaling](https://fly.io/docs/reference/scaling/) very easy.
 
 ```ocaml
 let () =
   Dream.run ~interface:"0.0.0.0"
   @@ Dream.logger
   @@ Dream.router [
-    Dream.get "/" (fun _ -> Dream.html "Dream deployed on Fly!");
+    Dream.get "/" (fun _ -> Dream.html "Dream deployed on Fly.io!");
   ]
 ```
 
@@ -22,13 +27,13 @@ quickly expand it by adding databases and other services.
 version: "3"
 
 services:
-    web:
-        build: .
-        ports:
-            - "8080:8080"
-        restart: always
-        logging:
-            driver: ${LOGGING_DRIVER:-json-file}
+  web:
+    build: .
+    ports:
+      - "8080:8080"
+    restart: always
+    logging:
+      driver: ${LOGGING_DRIVER:-json-file}
 ```
 
 The setup can be run locally or on any server provider.
@@ -40,44 +45,38 @@ only contains the final binary and its run-time dependencies.
 
 <br>
 
-## Deploy
+## Deploying
 
-Fly has a really simple [setup guide](https://fly.io/docs/hands-on/start/) that we'll follow.
+Fly has a [setup guide](https://fly.io/docs/hands-on/start/) that we'll follow.
 
-1. Install `flyctl` with `brew install superfly/tap/flyctl`.
+1. Install `flyctl` with `curl -L https://fly.io/install.sh | sh` or follow the
+   specific [instructions](https://fly.io/docs/hands-on/installing/) for your
+   system.
 2. Run `fly launch` to initialize and deploy your project.
 
-That should be it! Assuming no errors, the cli will share a link to your live app.
+That should be it! Assuming no errors, the cli will print a link to your live
+app.
 
 <br>
 
 ## Development
 
-For local development you can run your app with or without Docker. Setting up the Docker build for the first time may take at least 4 minutes. Subsequent builds are cached.
-
-<br>
+For local development you can run your app with or without Docker. Setting up
+the Docker build for the first time may take at least 4 minutes. Subsequent
+builds are cached.
 
-**With Docker**
+With Docker:
 
 1. [Install Docker](https://www.docker.com/get-started).
-2. Ensure Docker is running, then run `docker compose up`. Docker should build, cache, and serve your app at `localhost:8080`.
+2. Ensure Docker is running, then run `docker compose up`. Docker should build,
+   cache, and serve your app at `localhost:8080`.
 
-**Without Docker**
+Without Docker:
 
 1. Make sure you have [esy](https://esy.sh) installed.
 2. Run `esy` to install all dependencies.
-3. To start your app, run `esy start`. This is an aliased command setup inside `esy.json`.
-
-<br>
-
-**See also:**
-
--   [**`z-docker-opam`**](../z-docker-opam#files) is a variant of this example
-    that uses opam instead of esy.
--   [**`z-systemd`**](../z-systemd#files) packages the app as a systemd daemon,
-    outside of a Docker container.
--   [**`z-heroku`**](../z-heroku#files) deploys the app to
-    [Heroku](https://heroku.com).
+3. To start your app, run `esy start`. This is an aliased command set up inside
+   `esy.json`.
 
 <br>
 
diff --git a/example/z-fly/app.ml b/example/z-fly/app.ml
index 9c0243f5..698d7581 100644
--- a/example/z-fly/app.ml
+++ b/example/z-fly/app.ml
@@ -2,5 +2,5 @@ let () =
   Dream.run ~interface:"0.0.0.0"
   @@ Dream.logger
   @@ Dream.router [
-    Dream.get "/" (fun _ -> Dream.html "Dream deployed on Fly!");
+    Dream.get "/" (fun _ -> Dream.html "Dream deployed on Fly.io!");
   ]
diff --git a/example/z-fly/esy.json b/example/z-fly/esy.json
index 916e6927..059a3414 100644
--- a/example/z-fly/esy.json
+++ b/example/z-fly/esy.json
@@ -19,4 +19,4 @@
       "dune build --root . ./app.exe"
     ]
   }
-}
\ No newline at end of file
+}
diff --git a/src/dream.mli b/src/dream.mli
index 77801b02..a4788b3e 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1315,13 +1315,15 @@ val csrf_tag : request -> string
 
     {[
       <form method="POST" action="/">
-        <input name="dream.csrf" type="hidden" value="a-token">
+        <input name="dream.csrf" type="hidden" value="j8vjZ6...">
         <input name="my.field">
       </form>
     ]}
 
-    It is recommended to put the CSRF tag immediately after the starting
-    [<form>] tag, to prevent certain kinds of DOM manipulation-based attacks. *)
+    It is
+    {{:https://portswigger.net/web-security/csrf/tokens#how-should-csrf-tokens-be-transmitted}
+    recommended} to put the CSRF tag immediately after the starting [<form>]
+    tag, to prevent certain kinds of DOM manipulation-based attacks. *)
 
 (**/**)
 val form_tag :

From 3c44be0cea394a12ffa940eac0ad20d0aa2bfdd0 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 16 Feb 2022 07:18:54 +0300
Subject: [PATCH 178/312] Cookies should have SameSite=Lax by default

Resolves #190.
---
 src/server/cookie.ml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/server/cookie.ml b/src/server/cookie.ml
index 31a34f05..56e9b1ef 100644
--- a/src/server/cookie.ml
+++ b/src/server/cookie.ml
@@ -12,8 +12,6 @@ module Message = Dream_pure.Message
 
 
 (* TODO LATER Optimize by caching the parsed cookies in a local key. *)
-(* TODO LATER: API: Dream.cookie : string -> request -> string, cookie-option...
-   the thing with cookies is that they have a high likelihood of being absent. *)
 (* TODO LATER Can decide whether to accept multiple Cookie: headers based on
    request version. But that would entail an actual middleware - is that worth
    it? *)
@@ -107,7 +105,7 @@ let set_cookie
 
   let same_site =
     match same_site with
-    | None -> Some `Strict
+    | None -> Some `Lax
     | Some None -> None
     | Some (Some `Strict) -> Some `Strict
     | Some (Some `Lax) -> Some `Lax

From cfacc8469aa0dd4c206eb55d996e1778c4947faa Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 16 Feb 2022 08:10:05 +0300
Subject: [PATCH 179/312] Automatically close streams and WebSockets

---
 docs/web/postprocess/index.ml                 |  6 ++--
 example/j-stream/README.md                    | 11 ++++++-
 example/j-stream/stream.ml                    |  1 +
 example/k-websocket/README.md                 | 15 ++++++---
 example/k-websocket/websocket.eml.ml          |  3 +-
 example/r-template-stream/README.md           | 31 ++++++++----------
 .../r-template-stream/template_stream.eml.re  | 27 +++++++---------
 example/w-template-stream/README.md           | 31 ++++++++----------
 .../w-template-stream/template_stream.eml.ml  | 27 +++++++---------
 src/dream.mli                                 | 19 +++++++----
 src/server/helpers.ml                         | 32 +++++++++++++++----
 11 files changed, 118 insertions(+), 85 deletions(-)

diff --git a/docs/web/postprocess/index.ml b/docs/web/postprocess/index.ml
index 3b685ca5..df9e2d10 100644
--- a/docs/web/postprocess/index.ml
+++ b/docs/web/postprocess/index.ml
@@ -592,7 +592,7 @@ let val_redirect_replacement = {|
 
 let stream_expected = {|<div class="spec value" id="val-stream">
  <a href="#val-stream" class="anchor"></a><code><span><span class="keyword">val</span> stream : <span>?status:<span>[&lt; <a href="#type-status">status</a> ]</span> <span class="arrow">-&gt;</span></span> <span>?code:int <span class="arrow">-&gt;</span></span> <span>?headers:<span><span>(string * string)</span> list</span> <span class="arrow">-&gt;</span></span>
-<span><span>(<span><a href="#type-stream">stream</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span>)</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <a href="#type-promise">promise</a></span></span></code>
+<span>?close:bool <span class="arrow">-&gt;</span></span> <span><span>(<span><a href="#type-stream">stream</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span>)</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <a href="#type-promise">promise</a></span></span></code>
 </div>
 |}
 
@@ -601,6 +601,7 @@ let stream_replacement = {|
   ?status:[&lt; <a href="#type-status">status</a> ] ->
   ?code:int ->
   ?headers:(string * string) list ->
+  ?close:bool ->
     (<a href="#type-stream">stream</a> -> unit <a href="#type-promise">promise</a>) -> <a href="#type-response">response</a> <a href="#type-promise">promise</a>
 </pre>
 |}
@@ -1091,13 +1092,14 @@ let set_session_replacement = {|
 |}
 
 let websocket_expected = {|<div class="spec value" id="val-websocket">
- <a href="#val-websocket" class="anchor"></a><code><span><span class="keyword">val</span> websocket : <span>?headers:<span><span>(string * string)</span> list</span> <span class="arrow">-&gt;</span></span> <span><span>(<span><a href="#type-websocket">websocket</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span>)</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <a href="#type-promise">promise</a></span></span></code>
+ <a href="#val-websocket" class="anchor"></a><code><span><span class="keyword">val</span> websocket : <span>?headers:<span><span>(string * string)</span> list</span> <span class="arrow">-&gt;</span></span> <span>?close:bool <span class="arrow">-&gt;</span></span> <span><span>(<span><a href="#type-websocket">websocket</a> <span class="arrow">-&gt;</span></span> <span>unit <a href="#type-promise">promise</a></span>)</span> <span class="arrow">-&gt;</span></span> <span><a href="#type-response">response</a> <a href="#type-promise">promise</a></span></span></code>
 </div>
 |}
 
 let websocket_replacement = {|
 <pre><span class="keyword">val</span> websocket :
   ?headers:(string * string) list ->
+  ?close:bool ->
     (<a href="#type-websocket">websocket</a> -> unit <a href="#type-promise">promise</a>) -> <a href="#type-response">response</a> <a href="#type-promise">promise</a>
 </pre>
 |}
diff --git a/example/j-stream/README.md b/example/j-stream/README.md
index ee5253f8..3b72575c 100644
--- a/example/j-stream/README.md
+++ b/example/j-stream/README.md
@@ -14,6 +14,7 @@ let () =
 
     Dream.post "/echo" (fun request ->
       let request_stream = Dream.body_stream request in
+
       Dream.stream
         ~headers:["Content-Type", "application/octet-stream"]
         (fun response_stream ->
@@ -47,7 +48,15 @@ curl -X POST http://localhost:8080/echo -T -
 
 You will see the server responding immediately to each line on STDIN.
 
-See [*Streaming*](https://aantron.github.io/dream/#streaming) in the API docs.
+<br>
+
+Note that you don't have to call
+[`Dream.close`](https://aantron.github.io/dream/#val-close) on the stream
+explicitly. [`Dream.stream`](https://aantron.github.io/dream/#val-stream)
+automatically closes the stream when the callback's promise resolves or is
+rejected with an exception.
+
+See [*Streams*](https://aantron.github.io/dream/#streams) in the API docs.
 
 <br>
 
diff --git a/example/j-stream/stream.ml b/example/j-stream/stream.ml
index 6080f1a8..08a222ca 100644
--- a/example/j-stream/stream.ml
+++ b/example/j-stream/stream.ml
@@ -5,6 +5,7 @@ let () =
 
     Dream.post "/echo" (fun request ->
       let request_stream = Dream.body_stream request in
+
       Dream.stream
         ~headers:["Content-Type", "application/octet-stream"]
         (fun response_stream ->
diff --git a/example/k-websocket/README.md b/example/k-websocket/README.md
index b628c1db..981ec437 100644
--- a/example/k-websocket/README.md
+++ b/example/k-websocket/README.md
@@ -41,8 +41,7 @@ let () =
         Dream.websocket (fun websocket ->
           match%lwt Dream.receive websocket with
           | Some "Hello?" ->
-            let%lwt () = Dream.send websocket "Good-bye!" in
-            Dream.close_websocket websocket
+            Dream.send websocket "Good-bye!"
           | _ ->
             Dream.close_websocket websocket));
 
@@ -62,11 +61,19 @@ Visit [http://localhost:8080](http://localhost:8080)
 
 <br>
 
-See [*WebSockets*](https://aantron.github.io/dream/#websockets) in the API docs.
-
 If you are running under HTTPS, be sure to use `wss://` for the protocol scheme,
 rather than `ws://`, on the client.
 
+You don't have to call
+[`Dream.close_websocket`](https://aantron.github.io/dream/#val-close_websocket)
+when you are done with the WebSocket.
+[`Dream.websocket`](https://aantron.github.io/dream/#val-websocket) calls it
+automatically when your callback's promise resolves or is rejected with an
+exception. This example calls `Dream.close_websocket` in one branch just
+because there is nothing else to do.
+
+See [*WebSockets*](https://aantron.github.io/dream/#websockets) in the API docs.
+
 <br>
 
 **Last step:**
diff --git a/example/k-websocket/websocket.eml.ml b/example/k-websocket/websocket.eml.ml
index f61ac3e3..d75df5dc 100644
--- a/example/k-websocket/websocket.eml.ml
+++ b/example/k-websocket/websocket.eml.ml
@@ -31,8 +31,7 @@ let () =
         Dream.websocket (fun websocket ->
           match%lwt Dream.receive websocket with
           | Some "Hello?" ->
-            let%lwt () = Dream.send websocket "Good-bye!" in
-            Dream.close_websocket websocket
+            Dream.send websocket "Good-bye!"
           | _ ->
             Dream.close_websocket websocket));
 
diff --git a/example/r-template-stream/README.md b/example/r-template-stream/README.md
index c3c69efe..7fa8fd19 100644
--- a/example/r-template-stream/README.md
+++ b/example/r-template-stream/README.md
@@ -7,23 +7,20 @@ in a response [stream](https://aantron.github.io/dream/#streaming):
 
 ```reason
 let render = response => {
-  let%lwt () = {
-    %% response
-    <html>
-    <body>
-
-%     let rec paragraphs = index => {
-        <p><%i index %></p>
-%       let%lwt () = Dream.flush(response);
-%       let%lwt () = Lwt_unix.sleep(1.);
-%       paragraphs(index + 1);
-%     };
-%     let%lwt () = paragraphs(0);
-
-    </body>
-    </html>
-  };
-  Dream.close_stream(response)
+  %% response
+  <html>
+  <body>
+
+%   let rec paragraphs = index => {
+      <p><%i index %></p>
+%     let%lwt () = Dream.flush(response);
+%     let%lwt () = Lwt_unix.sleep(1.);
+%     paragraphs(index + 1);
+%   };
+%   let%lwt () = paragraphs(0);
+
+  </body>
+  </html>
 };
 
 let () =
diff --git a/example/r-template-stream/template_stream.eml.re b/example/r-template-stream/template_stream.eml.re
index e51238b3..d5afce58 100644
--- a/example/r-template-stream/template_stream.eml.re
+++ b/example/r-template-stream/template_stream.eml.re
@@ -1,21 +1,18 @@
 let render = response => {
-  let%lwt () = {
-    %% response
-    <html>
-    <body>
+  %% response
+  <html>
+  <body>
 
-%     let rec paragraphs = index => {
-        <p><%i index %></p>
-%       let%lwt () = Dream.flush(response);
-%       let%lwt () = Lwt_unix.sleep(1.);
-%       paragraphs(index + 1);
-%     };
-%     let%lwt () = paragraphs(0);
+%   let rec paragraphs = index => {
+      <p><%i index %></p>
+%     let%lwt () = Dream.flush(response);
+%     let%lwt () = Lwt_unix.sleep(1.);
+%     paragraphs(index + 1);
+%   };
+%   let%lwt () = paragraphs(0);
 
-    </body>
-    </html>
-  };
-  Dream.close(response)
+  </body>
+  </html>
 };
 
 let () =
diff --git a/example/w-template-stream/README.md b/example/w-template-stream/README.md
index b9b5add3..ca5bb640 100644
--- a/example/w-template-stream/README.md
+++ b/example/w-template-stream/README.md
@@ -7,23 +7,20 @@ a response body. It sends one paragraph per second to the client:
 
 ```ocaml
 let render response =
-  let%lwt () =
-    %% response
-    <html>
-    <body>
-
-%     let rec paragraphs index =
-        <p><%i index %></p>
-%       let%lwt () = Dream.flush response in
-%       let%lwt () = Lwt_unix.sleep 1. in
-%       paragraphs (index + 1)
-%     in
-%     let%lwt () = paragraphs 0 in
-
-    </body>
-    </html>
-  in
-  Dream.close_stream response
+  %% response
+  <html>
+  <body>
+
+%   let rec paragraphs index =
+      <p><%i index %></p>
+%     let%lwt () = Dream.flush response in
+%     let%lwt () = Lwt_unix.sleep 1. in
+%     paragraphs (index + 1)
+%   in
+%   let%lwt () = paragraphs 0 in
+
+  </body>
+  </html>
 
 let () =
   Dream.run
diff --git a/example/w-template-stream/template_stream.eml.ml b/example/w-template-stream/template_stream.eml.ml
index c8033744..abe787d1 100644
--- a/example/w-template-stream/template_stream.eml.ml
+++ b/example/w-template-stream/template_stream.eml.ml
@@ -1,21 +1,18 @@
 let render response =
-  let%lwt () =
-    %% response
-    <html>
-    <body>
+  %% response
+  <html>
+  <body>
 
-%     let rec paragraphs index =
-        <p><%i index %></p>
-%       let%lwt () = Dream.flush response in
-%       let%lwt () = Lwt_unix.sleep 1. in
-%       paragraphs (index + 1)
-%     in
-%     let%lwt () = paragraphs 0 in
+%   let rec paragraphs index =
+      <p><%i index %></p>
+%     let%lwt () = Dream.flush response in
+%     let%lwt () = Lwt_unix.sleep 1. in
+%     paragraphs (index + 1)
+%   in
+%   let%lwt () = paragraphs 0 in
 
-    </body>
-    </html>
-  in
-  Dream.close response
+  </body>
+  </html>
 
 let () =
   Dream.run
diff --git a/src/dream.mli b/src/dream.mli
index a4788b3e..7177bf64 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -726,6 +726,7 @@ val stream :
   ?status:[< status ] ->
   ?code:int ->
   ?headers:(string * string) list ->
+  ?close:bool ->
     (stream -> unit promise) -> response promise
 (** Creates a response with a {!type-stream} open for writing, and passes the
     stream to the callback when it is ready. See example
@@ -735,9 +736,11 @@ val stream :
     {[
       fun request ->
         Dream.stream (fun stream ->
-          let%lwt () = Dream.write stream "foo" in
-          Dream.close stream)
-    ]} *)
+          Dream.write stream "foo")
+    ]}
+
+    [Dream.stream] automatically closes the stream when the callback returns or
+    raises an exception. Pass [~close:false] to suppress this behavior. *)
 
 val read : stream -> string option promise
 (** Retrieves a body chunk. See example
@@ -887,6 +890,7 @@ type websocket
 
 val websocket :
   ?headers:(string * string) list ->
+  ?close:bool ->
     (websocket -> unit promise) -> response promise
 (** Creates a fresh [101 Switching Protocols] response. Once this response is
     returned to Dream's HTTP layer, the callback is passed a new
@@ -897,9 +901,12 @@ val websocket :
     {[
       let my_handler = fun request ->
         Dream.websocket (fun websocket ->
-          let%lwt () = Dream.send websocket "Hello, world!" in
-          Dream.close_websocket websocket);
-    ]} *)
+          let%lwt () = Dream.send websocket "Hello, world!");
+    ]}
+
+    [Dream.websocket] automatically closes the WebSocket when the callback
+    returns or raises an exception. Pass [~close:false] to suppress this
+    behavior. *)
 
 type text_or_binary = [ `Text | `Binary ]
 (** See {!send} and {!receive_fragment}. *)
diff --git a/src/server/helpers.ml b/src/server/helpers.ml
index c10f483f..139a3324 100644
--- a/src/server/helpers.ml
+++ b/src/server/helpers.ml
@@ -89,15 +89,25 @@ let redirect ?status ?code ?headers _request location =
   Message.set_header response "Location" location;
   Lwt.return response
 
-let stream ?status ?code ?headers callback =
+let stream ?status ?code ?headers ?(close = true) callback =
   let reader, writer = Stream.pipe () in
   let client_stream = Stream.stream reader Stream.no_writer
   and server_stream = Stream.stream Stream.no_reader writer in
   let response =
     Message.response ?status ?code ?headers client_stream server_stream in
-  (* TODO Should set up an error handler for this. YES. *)
+
   (* TODO Make sure the request id is propagated to the callback. *)
-  Lwt.async (fun () -> callback server_stream);
+  Lwt.async (fun () ->
+    if close then
+      match%lwt callback server_stream with
+      | () ->
+        Message.close server_stream
+      | exception exn ->
+        let%lwt () = Message.close server_stream in
+        raise exn
+    else
+      callback server_stream);
+
   Lwt.return response
 
 let empty ?headers status =
@@ -108,14 +118,24 @@ let not_found _ =
 
 
 
-let websocket ?headers callback =
+let websocket ?headers ?(close = true) callback =
   let response =
     Message.response
       ~status:`Switching_Protocols ?headers Stream.empty Stream.null in
   let websocket = Message.create_websocket response in
+
   (* TODO Make sure the request id is propagated to the callback. *)
-  (* TODO Close the WwbSocket on leaked exceptions, etc. *)
-  Lwt.async (fun () -> callback websocket);
+  Lwt.async (fun () ->
+    if close then
+      match%lwt callback websocket with
+      | () ->
+        Message.close_websocket websocket
+      | exception exn ->
+        let%lwt () = Message.close_websocket websocket ~code:1005 in
+        raise exn
+    else
+      callback websocket);
+
   Lwt.return response
 
 let receive (_, server_stream) =

From dc844913d7da40c8508d8e354425ff2bb265a37b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 16 Feb 2022 08:19:23 +0300
Subject: [PATCH 180/312] Docs: fix formatting of Dream.set_secret

---
 docs/web/postprocess/index.ml | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/docs/web/postprocess/index.ml b/docs/web/postprocess/index.ml
index df9e2d10..d0301881 100644
--- a/docs/web/postprocess/index.ml
+++ b/docs/web/postprocess/index.ml
@@ -1621,6 +1621,16 @@ let server_replacement' = {|
 <code><span><span class="keyword">and</span> server</span></code>
 |}
 
+let set_secret_expected = {|<div class="spec value" id="val-set_secret">
+ <a href="#val-set_secret" class="anchor"></a><code><span><span class="keyword">val</span> set_secret : <span>?old_secrets:<span>string list</span> <span class="arrow">-&gt;</span></span> <span>string <span class="arrow">-&gt;</span></span> <a href="#type-middleware">middleware</a></span></code>
+</div>
+|}
+
+let set_secret_replacement = {|
+<pre><span class="keyword">val</span> set_secret :
+  ?old_secrets:string list -> string -> <a href="#type-middleware">middleware</a>
+</pre>|}
+
 let pretty_print_signatures soup =
   let method_ = soup $ "#type-method_" in
   if_expected
@@ -1943,7 +1953,10 @@ let pretty_print_signatures soup =
     "#type-end_of_message" end_of_message_expected end_of_message_replacement;
 
   multiline
-    "#val-receive_fragment" receive_fragment_expected receive_fragment_replacement
+    "#val-receive_fragment"
+    receive_fragment_expected receive_fragment_replacement;
+
+  multiline "#val-set_secret" set_secret_expected set_secret_replacement
 
 let remove_stdlib soup =
   soup $$ ".xref-unresolved:contains(\"Stdlib\")" |> Soup.iter (fun element ->

From 929a9042dbf18576ba799ece347a5af0c3309879 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 16 Feb 2022 10:44:34 +0300
Subject: [PATCH 181/312] Update .ocamlformat to 0.20.1

Dream was using some of the removed options based on misconceptions
about what they did. Others seem to have good substitutes among the
remaining options.

For if-then-else = fit-or-vertical, see

  https://github.com/ocaml-ppx/ocamlformat/issues/1997#issuecomment-1041201540
---
 .ocamlformat | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/.ocamlformat b/.ocamlformat
index 9059cdef..23eafeb8 100644
--- a/.ocamlformat
+++ b/.ocamlformat
@@ -1,21 +1,17 @@
-version = 0.19.0
+version = 0.20.1
 profile = conventional
 
 leading-nested-match-parens = false
-align-constructors-decl = true
-align-variants-decl = true
 space-around-variants = false
 space-around-arrays = false
 space-around-lists = false
 space-around-records = false
-break-before-in = auto
 break-infix = fit-or-vertical
 break-separators = after
 space-around-records = true
-break-cases = all
+break-cases = fit-or-vertical
 cases-exp-indent = 2
 exp-grouping = preserve
-nested-match = align
 if-then-else = fit-or-vertical
 let-and = sparse
 type-decl = sparse

From 9ac86d789f234697716393cf106d835c69672a6f Mon Sep 17 00:00:00 2001
From: Thomas Haessle <thomas.haessle@gmail.com>
Date: Tue, 22 Feb 2022 13:55:40 +0100
Subject: [PATCH 182/312] Update router in examples for alpha3 (#205)

---
 example/r-template/README.md  | 3 +--
 example/w-mirage/unikernel.ml | 1 -
 src/dream.mli                 | 2 --
 3 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/example/r-template/README.md b/example/r-template/README.md
index e76e8baf..19208090 100644
--- a/example/r-template/README.md
+++ b/example/r-template/README.md
@@ -23,8 +23,7 @@ let () =
     Dream.get("/",
       (_ => Dream.html(greet("world")))),
 
-  ])
-  @@ Dream.not_found;
+  ]);
 ```
 
 <pre><code><b>$ cd example/r-template</b>
diff --git a/example/w-mirage/unikernel.ml b/example/w-mirage/unikernel.ml
index c3700a9b..61851644 100644
--- a/example/w-mirage/unikernel.ml
+++ b/example/w-mirage/unikernel.ml
@@ -20,7 +20,6 @@ module Make
     @@ Dream.router
     [ Dream.get "/" (fun _ -> Dream.html "Good morning, world! (from MirageOS)")
     ; Dream.get "/echo/:word" echo ]
-    @@ Dream.not_found
 
   module DNS = Dns_client_mirage.Make (Random) (Time) (Mclock) (Pclock) (Stack)
   module Let = LE.Make (Time) (Stack)
diff --git a/src/dream.mli b/src/dream.mli
index 7177bf64..e964fdf6 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1555,7 +1555,6 @@ val static :
         @@ Dream.router {
           Dream.get "/static/**" @@ Dream.static "www/static";
         }
-        @@ Dream.not_found
     ]}
 
     [Dream.static local_directory] validates the path substituted for [**] by
@@ -1767,7 +1766,6 @@ val graphql : (request -> 'a promise) -> 'a Graphql_lwt.Schema.schema -> handler
           Dream.any "/graphql"  (Dream.graphql Lwt.return schema);
           Dream.get "/graphiql" (Dream.graphiql "/graphql");
         ]
-        @@ Dream.not_found
     ]}
 
     [make_context] is called by {!Dream.val-graphql} on every {!type-request} to

From dcc351386ece8bf504bfe6edba3ac08d5fbe651b Mon Sep 17 00:00:00 2001
From: Yawar Amin <yawar.amin@gmail.com>
Date: Sat, 26 Feb 2022 13:33:37 -0500
Subject: [PATCH 183/312] Update docs for form_result `Expired (#206)

Since it now has two fields.
---
 example/d-form/README.md | 8 ++++----
 src/dream.mli            | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/example/d-form/README.md b/example/d-form/README.md
index 685093c6..cac1d4db 100644
--- a/example/d-form/README.md
+++ b/example/d-form/README.md
@@ -82,10 +82,10 @@ return a [value other than
 The form fields carried inside `` `Ok _`` are returned in sorted order, so you
 can reliably pattern-match on them.
 
-The bad token results, like `` `Expired _``, also carry the form fields. You can
-add handling for them to recover. For example, if you receive a form with an
-expired token, you may want to resend it with some of the fields pre-filled to
-received values, so that the user can try again quickly.
+The bad token results, like `` `Expired (_, _)``, also carry the form fields.
+You can add handling for them to recover. For example, if you receive a form
+with an expired token, you may want to resend it with some of the fields pre-
+filled to received values, so that the user can try again quickly.
 
 However, do not send back any sensitive data, because *any* result other than
 `` `Ok _`` *might* indicate an attack in progress. That said, `` `Expired _``
diff --git a/src/dream.mli b/src/dream.mli
index e964fdf6..79359085 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1062,7 +1062,7 @@ val form : ?csrf:bool -> request -> (string * string) list form_result promise
     {[
       match%lwt Dream.form request with
       | `Ok      ["email", email; "name", name] -> (* ... *)
-      | `Expired ["email", email; "name", name] -> (* ... *)
+      | `Expired (["email", email; "name", name], _) -> (* ... *)
       | _ -> Dream.empty `Bad_Request
     ]}
 

From f93d09befd621456d09163ff2123fcbe750ee267 Mon Sep 17 00:00:00 2001
From: Patrick Ferris <patrick@sirref.org>
Date: Mon, 7 Mar 2022 15:45:32 +0000
Subject: [PATCH 184/312] Add camlp-streams dep for 5.00.0 (#210)

---
 dream.opam   | 1 +
 src/eml/dune | 1 +
 2 files changed, 2 insertions(+)

diff --git a/dream.opam b/dream.opam
index d8778319..b09779e4 100644
--- a/dream.opam
+++ b/dream.opam
@@ -49,6 +49,7 @@ maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 depends: [
   "base-unix"
   "bigarray-compat"
+  "camlp-streams"
   "caqti" {>= "1.6.0"}  # https://github.com/aantron/dream/issues/44.
   "caqti-lwt"
   "conf-libev" {os != "win32"}
diff --git a/src/eml/dune b/src/eml/dune
index 063cfd8e..1c29e059 100644
--- a/src/eml/dune
+++ b/src/eml/dune
@@ -9,4 +9,5 @@
 (library
  (name eml)
  (modules eml)
+ (libraries camlp-streams)
  (instrumentation (backend bisect_ppx)))

From b5d6561db3961330778118e49065922249cd5bca Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 7 Mar 2022 18:57:20 +0300
Subject: [PATCH 185/312] Docs: Dream.run ?secret is now Dream.set_secret

Fixes #207.
---
 src/dream.mli | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 79359085..ca9e083a 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -586,7 +586,7 @@ val set_cookie :
       Dream.set_cookie request response "my.cookie" "value"
     ]}
 
-    Specify {!Dream.run} argument [~secret], or the Web app will not be able to
+    Use the {!Dream.set_secret} middleware, or the Web app will not be able to
     decrypt cookies from prior starts.
 
     See example
@@ -609,7 +609,7 @@ val set_cookie :
     - [~encrypt:false] disables cookie encryption. In that case, you must make
       sure that the cookie value does not contain [=], [;], or newlines. The
       easiest way to do so is to pass the value through an encoder like
-      {!Dream.to_base64url}. See {!Dream.run} argument [~secret].
+      {!Dream.to_base64url}. See {!Dream.set_secret}.
     - [~expires] sets the [Expires=] attribute. The value is compatible with
       {{:https://caml.inria.fr/pub/docs/manual-ocaml/libref/Unix.html#VALgettimeofday}
       [Unix.gettimeofday]}. See
@@ -1213,9 +1213,9 @@ type csrf_result = [
 
 val csrf_token : ?valid_for:float -> request -> string
 (** Returns a fresh CSRF token bound to the given request's and signed with the
-    [~secret] given to {!Dream.run}. [~valid_for] is the token's lifetime, in
-    seconds. The default value is one hour ([3600.]). Dream uses signed tokens
-    that are not stored server-side. *)
+    secret given to {!Dream.set_secret}. [~valid_for] is the token's lifetime,
+    in seconds. The default value is one hour ([3600.]). Dream uses signed
+    tokens that are not stored server-side. *)
 
 val verify_csrf_token : request -> string -> csrf_result promise
 (** Checks that the CSRF token is valid for the {!type-request}'s session. *)
@@ -1676,8 +1676,8 @@ val memory_sessions : ?lifetime:float -> middleware
     Session data is lost when the server process exits. *)
 
 val cookie_sessions : ?lifetime:float -> middleware
-(** Stores sessions in encrypted cookies. Pass {!Dream.run} [~secret] to be able
-    to decrypt cookies from previous server runs. *)
+(** Stores sessions in encrypted cookies. Use {!Dream.set_secret} to be able to
+    decrypt cookies from previous server runs. *)
 
 val sql_sessions : ?lifetime:float -> middleware
 (** Stores sessions in an SQL database. Passes session IDs to clients in
@@ -2455,8 +2455,7 @@ val random : int -> string
 val encrypt :
   ?associated_data:string ->
     request -> string -> string
-(** Signs and encrypts the string using the [~secret] in the request. See
-    {!Dream.run} for setting [~secret].
+(** Signs and encrypts the string using the secret set by {!Dream.set_secret}.
 
     [~associated_data] is included when computing the signature, but not
     included in the ciphertext. It can be used like a “salt,” to force
@@ -2490,9 +2489,9 @@ val decrypt :
     request -> string -> string option
 (** Reverses {!Dream.encrypt}.
 
-    To support secret rotation, the decryption secrets with which decryption is
-    attempted are [(~secret)::(~old_secrets)]. See the descriptions of [~secret]
-    and [~old_secrets] in {!Dream.run}. *)
+    To support secret rotation, this function first tries to decrypt the string
+    using the main secret set by {!Dream.set_secret}, and then each of the old
+    secrets passed to {!Dream.set_secret} in [~old_secrets]. *)
 
 
 

From 7f196a2573e535b8307e8dc418c2f6094cfeed33 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 8 Mar 2022 12:47:16 +0300
Subject: [PATCH 186/312] Bump version in docs

---
 docs/web/templates/index.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/web/templates/index.html b/docs/web/templates/index.html
index 3b2063b0..35d1d9d3 100644
--- a/docs/web/templates/index.html
+++ b/docs/web/templates/index.html
@@ -32,7 +32,7 @@ <h6>Tidy Web framework for OCaml and ReasonML</h6>
     </div>
 
     <ul>
-      <li><code>1.0.0~alpha3</code></li>
+      <li><code>1.0.0~alpha4</code></li>
       <li><code>opam install dream</code></li>
       <li><a target="_blank" rel="noreferrer noopener" href="https://github.com/aantron/dream">GitHub</a></li>
       <li><a target="_blank" rel="noreferrer noopener" href="https://github.com/aantron/dream/blob/master/src/dream.mli">Edit these docs</a></li>

From 3098d0a194369d00fe373474a7d9996988998309 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 9 Mar 2022 19:47:51 +0300
Subject: [PATCH 187/312] Update examples and metadata for alpha4

---
 LICENSE.md                                 | 2 +-
 docs/web/postprocess/index.ml              | 2 +-
 dream.opam                                 | 2 +-
 example/1-hello/esy.json                   | 2 +-
 example/2-middleware/esy.json              | 2 +-
 example/3-router/esy.json                  | 2 +-
 example/4-counter/esy.json                 | 2 +-
 example/5-promise/esy.json                 | 2 +-
 example/6-echo/esy.json                    | 2 +-
 example/7-template/esy.json                | 2 +-
 example/8-debug/esy.json                   | 2 +-
 example/9-error/esy.json                   | 2 +-
 example/a-log/esy.json                     | 2 +-
 example/b-session/esy.json                 | 2 +-
 example/c-cookie/esy.json                  | 2 +-
 example/d-form/esy.json                    | 2 +-
 example/e-json/esy.json                    | 2 +-
 example/f-static/esy.json                  | 2 +-
 example/g-upload/esy.json                  | 2 +-
 example/h-sql/esy.json                     | 2 +-
 example/i-graphql/esy.json                 | 2 +-
 example/j-stream/esy.json                  | 2 +-
 example/k-websocket/esy.json               | 2 +-
 example/l-https/esy.json                   | 2 +-
 example/r-fullstack-melange/esy.json       | 2 +-
 example/r-graphql/esy.json                 | 2 +-
 example/r-hello/esy.json                   | 2 +-
 example/r-template-files/esy.json          | 2 +-
 example/r-template-logic/esy.json          | 2 +-
 example/r-template-stream/esy.json         | 2 +-
 example/r-template/esy.json                | 2 +-
 example/r-tyxml/README.md                  | 2 +-
 example/r-tyxml/esy.json                   | 2 +-
 example/w-chat/esy.json                    | 2 +-
 example/w-content-security-policy/esy.json | 2 +-
 example/w-esy/README.md                    | 2 +-
 example/w-esy/esy.json                     | 2 +-
 example/w-flash/esy.json                   | 2 +-
 example/w-fswatch/esy.json                 | 2 +-
 example/w-fullstack-jsoo/esy.json          | 2 +-
 example/w-fullstack-rescript/esy.json      | 2 +-
 example/w-graphql-subscription/esy.json    | 2 +-
 example/w-live-reload/esy.json             | 2 +-
 example/w-long-polling/esy.json            | 2 +-
 example/w-multipart-dump/esy.json          | 2 +-
 example/w-nginx/esy.json                   | 2 +-
 example/w-one-binary/esy.json              | 2 +-
 example/w-postgres/esy.json                | 2 +-
 example/w-query/esy.json                   | 2 +-
 example/w-server-sent-events/esy.json      | 2 +-
 example/w-stress-response/esy.json         | 2 +-
 example/w-stress-websocket-send/esy.json   | 2 +-
 example/w-template-files/esy.json          | 2 +-
 example/w-template-logic/esy.json          | 2 +-
 example/w-template-stream/esy.json         | 2 +-
 example/w-tyxml/esy.json                   | 2 +-
 example/w-upload-stream/esy.json           | 2 +-
 example/z-docker-esy/esy.json              | 2 +-
 example/z-fly/esy.json                     | 2 +-
 example/z-heroku/esy.json                  | 2 +-
 example/z-systemd/esy.json                 | 2 +-
 61 files changed, 61 insertions(+), 61 deletions(-)

diff --git a/LICENSE.md b/LICENSE.md
index 2f5408b0..afa6931d 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,4 +1,4 @@
-Copyright (c) 2021, Anton Bachin
+Copyright (c) 2021-2022, Anton Bachin
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/docs/web/postprocess/index.ml b/docs/web/postprocess/index.ml
index d0301881..991d4bb5 100644
--- a/docs/web/postprocess/index.ml
+++ b/docs/web/postprocess/index.ml
@@ -1600,7 +1600,7 @@ let message_expected = {|<div class="spec type" id="type-message">
 |}
 
 let message_replacement = {|
-<code><span><span class="keyword">and</span> message</span></code>
+<code><span><span class="keyword">and</span> 'a message</span></code>
 |}
 
 let client_expected' = {|<div class="spec type" id="type-client">
diff --git a/dream.opam b/dream.opam
index b09779e4..50b67f42 100644
--- a/dream.opam
+++ b/dream.opam
@@ -55,7 +55,7 @@ depends: [
   "conf-libev" {os != "win32"}
   "cstruct" {>= "6.0.0"}
   "dream-httpaf"
-  "dream-pure"
+  "dream-pure" {>= "1.0.0~alpha2"}
   "dune" {>= "2.7.0"}  # --instrument-with.
   "fmt" {>= "0.8.7"}  # `Italic.
   "graphql_parser"
diff --git a/example/1-hello/esy.json b/example/1-hello/esy.json
index 15c99c36..44e7bd0b 100644
--- a/example/1-hello/esy.json
+++ b/example/1-hello/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/2-middleware/esy.json b/example/2-middleware/esy.json
index edf3ac16..0dcceed9 100644
--- a/example/2-middleware/esy.json
+++ b/example/2-middleware/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/3-router/esy.json b/example/3-router/esy.json
index 662e6b56..13903adf 100644
--- a/example/3-router/esy.json
+++ b/example/3-router/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/4-counter/esy.json b/example/4-counter/esy.json
index 7bd296dc..b12e5e24 100644
--- a/example/4-counter/esy.json
+++ b/example/4-counter/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/5-promise/esy.json b/example/5-promise/esy.json
index 5e08dcb7..0494123e 100644
--- a/example/5-promise/esy.json
+++ b/example/5-promise/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/6-echo/esy.json b/example/6-echo/esy.json
index c2118c9d..fd75ff06 100644
--- a/example/6-echo/esy.json
+++ b/example/6-echo/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/7-template/esy.json b/example/7-template/esy.json
index a675fa89..44512e66 100644
--- a/example/7-template/esy.json
+++ b/example/7-template/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/8-debug/esy.json b/example/8-debug/esy.json
index 6b4ab4ee..e567e539 100644
--- a/example/8-debug/esy.json
+++ b/example/8-debug/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/9-error/esy.json b/example/9-error/esy.json
index 0b017c94..e099663c 100644
--- a/example/9-error/esy.json
+++ b/example/9-error/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/a-log/esy.json b/example/a-log/esy.json
index 3d4db268..349651a4 100644
--- a/example/a-log/esy.json
+++ b/example/a-log/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/b-session/esy.json b/example/b-session/esy.json
index 20ed6d90..758cd14a 100644
--- a/example/b-session/esy.json
+++ b/example/b-session/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/c-cookie/esy.json b/example/c-cookie/esy.json
index 3d477c78..699da488 100644
--- a/example/c-cookie/esy.json
+++ b/example/c-cookie/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/d-form/esy.json b/example/d-form/esy.json
index a3d304d7..66bff2fe 100644
--- a/example/d-form/esy.json
+++ b/example/d-form/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/e-json/esy.json b/example/e-json/esy.json
index 6c88c8da..7d785172 100644
--- a/example/e-json/esy.json
+++ b/example/e-json/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/ppx_yojson_conv": "*",
     "ocaml": "4.12.x"
diff --git a/example/f-static/esy.json b/example/f-static/esy.json
index 23353bcb..a7757df5 100644
--- a/example/f-static/esy.json
+++ b/example/f-static/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/g-upload/esy.json b/example/g-upload/esy.json
index 40e93e38..7a73e2d6 100644
--- a/example/g-upload/esy.json
+++ b/example/g-upload/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/h-sql/esy.json b/example/h-sql/esy.json
index a28be182..76be20e6 100644
--- a/example/h-sql/esy.json
+++ b/example/h-sql/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/caqti-driver-sqlite3": "*",
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/i-graphql/esy.json b/example/i-graphql/esy.json
index 378283c4..4951cb38 100644
--- a/example/i-graphql/esy.json
+++ b/example/i-graphql/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/j-stream/esy.json b/example/j-stream/esy.json
index 4b03b24b..5edd68c3 100644
--- a/example/j-stream/esy.json
+++ b/example/j-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/k-websocket/esy.json b/example/k-websocket/esy.json
index 806e8ba6..9c5a8ab4 100644
--- a/example/k-websocket/esy.json
+++ b/example/k-websocket/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/l-https/esy.json b/example/l-https/esy.json
index 4185f0cd..b131c58f 100644
--- a/example/l-https/esy.json
+++ b/example/l-https/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/r-fullstack-melange/esy.json b/example/r-fullstack-melange/esy.json
index 9851b111..43fba9cf 100644
--- a/example/r-fullstack-melange/esy.json
+++ b/example/r-fullstack-melange/esy.json
@@ -1,7 +1,7 @@
 {
   "name": "fullstack-melange",
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "melange": "melange-re/melange",
diff --git a/example/r-graphql/esy.json b/example/r-graphql/esy.json
index 53f1b6fd..feed03c0 100644
--- a/example/r-graphql/esy.json
+++ b/example/r-graphql/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-hello/esy.json b/example/r-hello/esy.json
index a1387ab2..60efa4f0 100644
--- a/example/r-hello/esy.json
+++ b/example/r-hello/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-template-files/esy.json b/example/r-template-files/esy.json
index 6950206e..0747497a 100644
--- a/example/r-template-files/esy.json
+++ b/example/r-template-files/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/r-template-logic/esy.json b/example/r-template-logic/esy.json
index 31b155d9..d7890cdc 100644
--- a/example/r-template-logic/esy.json
+++ b/example/r-template-logic/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-template-stream/esy.json b/example/r-template-stream/esy.json
index 5aadc9ba..3a60205f 100644
--- a/example/r-template-stream/esy.json
+++ b/example/r-template-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-template/esy.json b/example/r-template/esy.json
index 31b155d9..d7890cdc 100644
--- a/example/r-template/esy.json
+++ b/example/r-template/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-tyxml/README.md b/example/r-tyxml/README.md
index 51dde84e..b0fa8508 100644
--- a/example/r-tyxml/README.md
+++ b/example/r-tyxml/README.md
@@ -42,7 +42,7 @@ To get this, we depend on package `tyxml-jsx` in
 
 <pre><code>{
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "@opam/tyxml": "*",
diff --git a/example/r-tyxml/esy.json b/example/r-tyxml/esy.json
index 1f049556..af985fb9 100644
--- a/example/r-tyxml/esy.json
+++ b/example/r-tyxml/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "@opam/tyxml": "*",
diff --git a/example/w-chat/esy.json b/example/w-chat/esy.json
index b02d6ef0..76800773 100644
--- a/example/w-chat/esy.json
+++ b/example/w-chat/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-content-security-policy/esy.json b/example/w-content-security-policy/esy.json
index 3089ccaf..fcd240c3 100644
--- a/example/w-content-security-policy/esy.json
+++ b/example/w-content-security-policy/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-esy/README.md b/example/w-esy/README.md
index cc350319..ceaefa5d 100644
--- a/example/w-esy/README.md
+++ b/example/w-esy/README.md
@@ -10,7 +10,7 @@ and looks like this:
 ```json
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-esy/esy.json b/example/w-esy/esy.json
index 15c99c36..44e7bd0b 100644
--- a/example/w-esy/esy.json
+++ b/example/w-esy/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-flash/esy.json b/example/w-flash/esy.json
index 5ef63045..24eaa2e8 100644
--- a/example/w-flash/esy.json
+++ b/example/w-flash/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-fswatch/esy.json b/example/w-fswatch/esy.json
index 15c99c36..44e7bd0b 100644
--- a/example/w-fswatch/esy.json
+++ b/example/w-fswatch/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-fullstack-jsoo/esy.json b/example/w-fullstack-jsoo/esy.json
index e6d0d326..17886e39 100644
--- a/example/w-fullstack-jsoo/esy.json
+++ b/example/w-fullstack-jsoo/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/js_of_ocaml": "*",
     "@opam/js_of_ocaml-ppx": "*",
diff --git a/example/w-fullstack-rescript/esy.json b/example/w-fullstack-rescript/esy.json
index be979580..97b6fabc 100644
--- a/example/w-fullstack-rescript/esy.json
+++ b/example/w-fullstack-rescript/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-graphql-subscription/esy.json b/example/w-graphql-subscription/esy.json
index 342cc5e8..3498f976 100644
--- a/example/w-graphql-subscription/esy.json
+++ b/example/w-graphql-subscription/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-live-reload/esy.json b/example/w-live-reload/esy.json
index a1b1f36d..b316c11c 100644
--- a/example/w-live-reload/esy.json
+++ b/example/w-live-reload/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/lambdasoup": "*",
     "ocaml": "4.12.x"
diff --git a/example/w-long-polling/esy.json b/example/w-long-polling/esy.json
index adba4fe1..41852447 100644
--- a/example/w-long-polling/esy.json
+++ b/example/w-long-polling/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-multipart-dump/esy.json b/example/w-multipart-dump/esy.json
index 987430fd..3990cf79 100644
--- a/example/w-multipart-dump/esy.json
+++ b/example/w-multipart-dump/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-nginx/esy.json b/example/w-nginx/esy.json
index 03f840ba..d2987cbd 100644
--- a/example/w-nginx/esy.json
+++ b/example/w-nginx/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-one-binary/esy.json b/example/w-one-binary/esy.json
index 435ebda5..b195183e 100644
--- a/example/w-one-binary/esy.json
+++ b/example/w-one-binary/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/crunch": "*",
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-postgres/esy.json b/example/w-postgres/esy.json
index 068906a8..4c5e455b 100644
--- a/example/w-postgres/esy.json
+++ b/example/w-postgres/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/caqti-driver-postgresql": "*",
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-query/esy.json b/example/w-query/esy.json
index 630d3fd8..36b84a6f 100644
--- a/example/w-query/esy.json
+++ b/example/w-query/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-server-sent-events/esy.json b/example/w-server-sent-events/esy.json
index 29564086..d1470a61 100644
--- a/example/w-server-sent-events/esy.json
+++ b/example/w-server-sent-events/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-stress-response/esy.json b/example/w-stress-response/esy.json
index 1f01436c..1d7fc7ef 100644
--- a/example/w-stress-response/esy.json
+++ b/example/w-stress-response/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-stress-websocket-send/esy.json b/example/w-stress-websocket-send/esy.json
index 8c85eafa..d884fdb5 100644
--- a/example/w-stress-websocket-send/esy.json
+++ b/example/w-stress-websocket-send/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-template-files/esy.json b/example/w-template-files/esy.json
index 6950206e..0747497a 100644
--- a/example/w-template-files/esy.json
+++ b/example/w-template-files/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-template-logic/esy.json b/example/w-template-logic/esy.json
index a675fa89..44512e66 100644
--- a/example/w-template-logic/esy.json
+++ b/example/w-template-logic/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-template-stream/esy.json b/example/w-template-stream/esy.json
index 1b64cfa4..3486aba2 100644
--- a/example/w-template-stream/esy.json
+++ b/example/w-template-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-tyxml/esy.json b/example/w-tyxml/esy.json
index 0ad9fb74..6363910b 100644
--- a/example/w-tyxml/esy.json
+++ b/example/w-tyxml/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/tyxml": "*",
     "ocaml": "4.12.x"
diff --git a/example/w-upload-stream/esy.json b/example/w-upload-stream/esy.json
index c1c49039..a44c1fda 100644
--- a/example/w-upload-stream/esy.json
+++ b/example/w-upload-stream/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-docker-esy/esy.json b/example/z-docker-esy/esy.json
index 396d8278..4031bb97 100644
--- a/example/z-docker-esy/esy.json
+++ b/example/z-docker-esy/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-fly/esy.json b/example/z-fly/esy.json
index 059a3414..95036ebd 100644
--- a/example/z-fly/esy.json
+++ b/example/z-fly/esy.json
@@ -4,7 +4,7 @@
     "build": "dune build"
   },
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-heroku/esy.json b/example/z-heroku/esy.json
index 5f5190e9..4b315105 100644
--- a/example/z-heroku/esy.json
+++ b/example/z-heroku/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-systemd/esy.json b/example/z-systemd/esy.json
index 396d8278..4031bb97 100644
--- a/example/z-systemd/esy.json
+++ b/example/z-systemd/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/dream": "1.0.0~alpha3",
+    "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },

From 2386083170766255021171870b8568d1c8c933b5 Mon Sep 17 00:00:00 2001
From: Alexander Skvortsov <38059171+askvortsov1@users.noreply.github.com>
Date: Thu, 24 Mar 2022 13:49:10 -0400
Subject: [PATCH 188/312] docs: Remove unnecessary @@ Dream.not_found from code
 sample (#213)

It doesn't seem to be necessary anymore, since `Dream.router` returns a handler, not a middleware.
---
 docs/web/templates/index.html | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/docs/web/templates/index.html b/docs/web/templates/index.html
index 35d1d9d3..b6c957c6 100644
--- a/docs/web/templates/index.html
+++ b/docs/web/templates/index.html
@@ -52,8 +52,7 @@ <h6>Tidy Web framework for OCaml and ReasonML</h6>
   @@ <span class="hljs-type">Dream</span>.router <span class="hljs-string">[</span>
     <span class="hljs-type">Dream</span>.get <span class="hljs-string">"/"</span> (<span class="keyword">fun</span> _ ->
       <span class="hljs-type">Dream</span>.html (hello <span class="hljs-string">"world"</span>));
-  <span class="hljs-string">]</span>
-  @@ <span class="hljs-type">Dream</span>.not_found</pre>
+  <span class="hljs-string">]</span></pre>
 
   <!-- Send TLS link to HTTPS example. -->
 

From 9439ca16b5c1be313f52af894cfd45d5750d3e90 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 28 Feb 2023 16:13:13 +0300
Subject: [PATCH 189/312] Adapt to mirage-crypto-rng 0.11.0

---
 dream.opam   | 3 ++-
 src/dream.ml | 3 ++-
 src/dune     | 2 +-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/dream.opam b/dream.opam
index 50b67f42..1c72bb02 100644
--- a/dream.opam
+++ b/dream.opam
@@ -67,7 +67,8 @@ depends: [
   "magic-mime"
   "mirage-clock" {>= "3.0.0"}  # now_d_ps : unit -> int * int64.
   "mirage-crypto" {>= "0.8.1"}  # AES-256-GCM.
-  "mirage-crypto-rng" {>= "0.8.0"}  # Signature of initialize.
+  "mirage-crypto-rng"
+  "mirage-crypto-rng-lwt"
   "multipart_form" {>= "0.4.0"}
   "multipart_form-lwt"
   "ocaml" {>= "4.08.0"}
diff --git a/src/dream.ml b/src/dream.ml
index f16f9a86..9f01675b 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -54,7 +54,8 @@ let now () =
   Ptime.to_float_s (Ptime.v (Ptime_clock.now_d_ps ()))
 
 let () =
-  Random.initialize Mirage_crypto_rng_lwt.initialize
+  Random.initialize (fun () ->
+    Mirage_crypto_rng_lwt.initialize (module Mirage_crypto_rng.Fortuna))
 
 module Session =
 struct
diff --git a/src/dune b/src/dune
index 053e23f9..a82c981c 100644
--- a/src/dune
+++ b/src/dune
@@ -16,6 +16,6 @@
   logs
   lwt
   lwt.unix
-  mirage-crypto-rng.lwt
+  mirage-crypto-rng-lwt
   ptime.clock.os
  ))

From cdd4a1bd9d12029f393e3cf4e30728229b113a3d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 28 Feb 2023 16:54:23 +0300
Subject: [PATCH 190/312] Upgrade h2 for OCaml 5 compatibility

---
 src/http/adapt.ml | 10 +++++-----
 src/http/http.ml  |  4 ++--
 src/vendor/h2     |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index fd5f737f..34aeb6ff 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -79,11 +79,11 @@ let forward_body
 
 let forward_body_h2
     (response : Message.response)
-    (body : [ `write ] H2.Body.t) =
+    (body : H2.Body.Writer.t) =
 
   forward_body_general
     response
-    (H2.Body.write_string body)
-    (H2.Body.write_bigstring body)
-    (H2.Body.flush body)
-    (fun _code -> H2.Body.close_writer body)
+    (H2.Body.Writer.write_string body)
+    (H2.Body.Writer.write_bigstring body)
+    (H2.Body.Writer.flush body)
+    (fun _code -> H2.Body.Writer.close body)
diff --git a/src/http/http.ml b/src/http/http.ml
index a74508b7..85414dc3 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -202,13 +202,13 @@ let wrap_handler_h2
     let body =
       H2.Reqd.request_body conn in
     let read ~data ~flush:_ ~ping:_ ~pong:_ ~close ~exn:_ =
-      H2.Body.schedule_read
+      H2.Body.Reader.schedule_read
         body
         ~on_eof:(fun () -> close 1000)
         ~on_read:(fun buffer ~off ~len -> data buffer off len true false)
     in
     let close _code =
-      H2.Body.close_reader body in
+      H2.Body.Reader.close body in
     let body =
       Stream.reader ~read ~close ~abort:close in
     let body =
diff --git a/src/vendor/h2 b/src/vendor/h2
index fa0c8a47..fceaad2c 160000
--- a/src/vendor/h2
+++ b/src/vendor/h2
@@ -1 +1 @@
-Subproject commit fa0c8a4746fdc50183e254f8c08239fc5b67717d
+Subproject commit fceaad2cfa198f090b47d6d72cb1c4ea9dee4a07

From fd784d9379caeed53ea2e9af8eb17a2e736ad01f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 1 Mar 2023 10:53:59 +0300
Subject: [PATCH 191/312] Adapt to deprecations in Caqti 1.8.0

The full fix is to switch to the infix operators added by the new
convenience interface in Caqti 1.7.0, which will be done in a later
commit. The purpose of the present commit is to get the build clean
again with the minimum reasonable changes.
---
 src/sql/session.ml | 15 ++++++++++-----
 src/sql/sql.ml     |  4 ++++
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/src/sql/session.ml b/src/sql/session.ml
index 86a4e9be..689990d1 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -30,7 +30,7 @@ let insert =
     R.exec T.(tup4 string string float string) {|
       INSERT INTO dream_session (id, label, expires_at, payload)
       VALUES ($1, $2, $3, $4)
-    |} in
+    |} [@ocaml.warning "-3"] in
 
   fun (module Db : DB) (session : Session.session) ->
     let payload = serialize_payload session.payload in
@@ -41,7 +41,8 @@ let insert =
 let find_opt =
   let query =
     R.find_opt T.string T.(tup3 string float string)
-      "SELECT label, expires_at, payload FROM dream_session WHERE id = $1" in
+      "SELECT label, expires_at, payload FROM dream_session WHERE id = $1"
+    [@ocaml.warning "-3"] in
 
   fun (module Db : DB) id ->
     let%lwt result = Db.find_opt query id in
@@ -68,7 +69,8 @@ let find_opt =
 let refresh =
   let query =
     R.exec T.(tup2 float string)
-      "UPDATE dream_session SET expires_at = $1 WHERE id = $2" in
+      "UPDATE dream_session SET expires_at = $1 WHERE id = $2"
+    [@ocaml.warning "-3"] in
 
   fun (module Db : DB) (session : Session.session) ->
     let%lwt result = Db.exec query (session.expires_at, session.id) in
@@ -77,7 +79,8 @@ let refresh =
 let update =
   let query =
     R.exec T.(tup2 string string)
-      "UPDATE dream_session SET payload = $1 WHERE id = $2" in
+      "UPDATE dream_session SET payload = $1 WHERE id = $2"
+    [@ocaml.warning "-3"] in
 
   fun (module Db : DB) (session : Session.session) ->
     let payload = serialize_payload session.payload in
@@ -85,7 +88,9 @@ let update =
     Caqti_lwt.or_fail result
 
 let remove =
-  let query = R.exec T.string "DELETE FROM dream_session WHERE id = $1" in
+  let query =
+    R.exec T.string "DELETE FROM dream_session WHERE id = $1"
+    [@ocaml.warning "-3"] in
 
   fun (module Db : DB) id ->
     let%lwt result = Db.exec query id in
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index a46d763c..68bd6b25 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -17,8 +17,12 @@ let log =
 let pool_field : (_, Caqti_error.t) Caqti_lwt.Pool.t Message.field =
   Message.new_field ()
 
+(* TODO This may not be necessary since Caqti 1.8.0. May require some messing
+   around, "Enable foreign key constraint checks for SQLite3 starting at tweaks
+   version 1.8." in CHANGES. *)
 let foreign_keys_on =
   Caqti_request.exec Caqti_type.unit "PRAGMA foreign_keys = ON"
+  [@ocaml.warning "-3"]
 
 let post_connect (module Db : Caqti_lwt.CONNECTION) =
   match Caqti_driver_info.dialect_tag Db.driver_info with

From 4ced2869373998bd82f8f74caf5179145b46802c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 1 Mar 2023 12:14:51 +0300
Subject: [PATCH 192/312] Adapt to formatting changes in ppx_expect v0.15.0

---
 dream.opam                        |  2 +-
 test/expect/pure/stream/stream.ml | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/dream.opam b/dream.opam
index 1c72bb02..13eb7e14 100644
--- a/dream.opam
+++ b/dream.opam
@@ -84,7 +84,7 @@ depends: [
   "caqti-driver-sqlite3" {with-test}
   "crunch" {with-test}
   "lambdasoup" {with-test}
-  "ppx_expect" {with-test}
+  "ppx_expect" {with-test & >= "v0.15.0"}  # Formatting changes.
   "ppx_yojson_conv" {with-test}
   "reason" {with-test}
   "tyxml" {with-test & >= "4.5.0"}
diff --git a/test/expect/pure/stream/stream.ml b/test/expect/pure/stream/stream.ml
index 7768658a..68a1a38e 100644
--- a/test/expect/pure/stream/stream.ml
+++ b/test/expect/pure/stream/stream.ml
@@ -124,10 +124,10 @@ let%expect_test _ =
   (try pong_and_dump "bar" stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn));
   [%expect {|
-    (Failure "write to a read-only stream")
-    (Failure "flush of a read-only stream")
-    (Failure "ping on a read-only stream")
-    (Failure "pong on a read-only stream") |}]
+    Failure("write to a read-only stream")
+    Failure("flush of a read-only stream")
+    Failure("ping on a read-only stream")
+    Failure("pong on a read-only stream") |}]
 
 
 
@@ -139,7 +139,7 @@ let%expect_test _ =
   read_and_dump stream;
   try read_and_dump stream
   with Failure _ as exn -> print_endline (Printexc.to_string exn);
-  [%expect {| (Failure "stream read: the previous read has not completed") |}]
+  [%expect {| Failure("stream read: the previous read has not completed") |}]
 
 
 

From f31a2ca898e9f8685e3339e79ac53a36f7e10bd7 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 1 Mar 2023 12:57:09 +0300
Subject: [PATCH 193/312] Adapt example/h-sql to Caqti deprecations

Caqti 1.8.0 deprecated Caqti_request.exec and other functions in favor
of the new convenience interface, which was added in Caqti 1.7.0.
---
 example/h-sql/README.md  | 13 +++++++------
 example/h-sql/esy.json   |  2 +-
 example/h-sql/sql.eml.ml | 11 ++++++-----
 3 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/example/h-sql/README.md b/example/h-sql/README.md
index 32dc0ae7..4636c93a 100644
--- a/example/h-sql/README.md
+++ b/example/h-sql/README.md
@@ -9,21 +9,22 @@ a library for talking to SQL databases:
 
 ```ocaml
 module type DB = Caqti_lwt.CONNECTION
-module R = Caqti_request
 module T = Caqti_type
 
 let list_comments =
   let query =
-    R.collect T.unit T.(tup2 int string)
-      "SELECT id, text FROM comment" in
+    let open Caqti_request.Infix in
+    (T.unit ->* T.(tup2 int string))
+    "SELECT id, text FROM comment" in
   fun (module Db : DB) ->
     let%lwt comments_or_error = Db.collect_list query () in
     Caqti_lwt.or_fail comments_or_error
 
 let add_comment =
   let query =
-    R.exec T.string
-      "INSERT INTO comment (text) VALUES ($1)" in
+    let open Caqti_request.Infix in
+    (T.string ->. T.unit)
+    "INSERT INTO comment (text) VALUES ($1)" in
   fun text (module Db : DB) ->
     let%lwt unit_or_error = Db.exec query text in
     Caqti_lwt.or_fail unit_or_error
@@ -120,7 +121,7 @@ We also had to make an addition to our
 [`esy.json`](https://github.com/aantron/dream/blob/master/example/h-sql/esy.json):
 
 <pre>"dependencies": {
-  <b>"@opam/caqti-driver-sqlite3": "*"</b>
+  <b>"@opam/caqti-driver-sqlite3": "^1.7.0"</b>
 }
 </pre>
 
diff --git a/example/h-sql/esy.json b/example/h-sql/esy.json
index 76be20e6..e210a12d 100644
--- a/example/h-sql/esy.json
+++ b/example/h-sql/esy.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@opam/caqti-driver-sqlite3": "*",
+    "@opam/caqti-driver-sqlite3": "^1.7.0",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/h-sql/sql.eml.ml b/example/h-sql/sql.eml.ml
index 6f2d8530..619bae41 100644
--- a/example/h-sql/sql.eml.ml
+++ b/example/h-sql/sql.eml.ml
@@ -1,19 +1,20 @@
 module type DB = Caqti_lwt.CONNECTION
-module R = Caqti_request
 module T = Caqti_type
 
 let list_comments =
   let query =
-    R.collect T.unit T.(tup2 int string)
-      "SELECT id, text FROM comment" in
+    let open Caqti_request.Infix in
+    (T.unit ->* T.(tup2 int string))
+    "SELECT id, text FROM comment" in
   fun (module Db : DB) ->
     let%lwt comments_or_error = Db.collect_list query () in
     Caqti_lwt.or_fail comments_or_error
 
 let add_comment =
   let query =
-    R.exec T.string
-      "INSERT INTO comment (text) VALUES ($1)" in
+    let open Caqti_request.Infix in
+    (T.string ->. T.unit)
+    "INSERT INTO comment (text) VALUES ($1)" in
   fun text (module Db : DB) ->
     let%lwt unit_or_error = Db.exec query text in
     Caqti_lwt.or_fail unit_or_error

From e0ff41e70ea5b8fb653c930d7c25af1d30394b97 Mon Sep 17 00:00:00 2001
From: Davi William Moraes Suga <33470530+davisuga@users.noreply.github.com>
Date: Wed, 1 Mar 2023 08:16:15 -0300
Subject: [PATCH 194/312] Fixed typo on Fly.io guide link (#239, #232)

Co-authored-by: Patrick Kilgore <git@pck.email>
---
 example/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/example/README.md b/example/README.md
index 87dd28d0..c947a0f2 100644
--- a/example/README.md
+++ b/example/README.md
@@ -83,7 +83,7 @@ There are several examples showing Dream with Reason syntax.
 
 - [**`z-heroku`**](z-heroku#files) &nbsp;&mdash;&nbsp; to
   [Heroku](https://www.heroku.com).
-- [**`z-fly`**](z-fly@files) &nbsp;&mdash;&nbsp; to [Fly.io](https://fly.io/).
+- [**`z-fly`**](z-fly#files) &nbsp;&mdash;&nbsp; to [Fly.io](https://fly.io/).
 - [**`z-docker-esy`**](z-docker-esy#files) &nbsp;&mdash;&nbsp; on a server,
   using Docker, with package manager esy.
 - [**`z-docker-opam`**](z-docker-opam#files) &nbsp;&mdash;&nbsp; on a server,

From 645805b5ad33530b47e3c2e0455cb27cebed6d7b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 1 Mar 2023 15:30:43 +0300
Subject: [PATCH 195/312] Adapt GraphQL examples to graphql-server 0.14.0

---
 example/i-graphql/README.md  | 4 ++--
 example/i-graphql/graphql.ml | 4 ++--
 example/r-graphql/README.md  | 2 +-
 example/r-graphql/graphql.re | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/example/i-graphql/README.md b/example/i-graphql/README.md
index f7678dda..190bfeb9 100644
--- a/example/i-graphql/README.md
+++ b/example/i-graphql/README.md
@@ -19,7 +19,7 @@ let hardcoded_users = [
 
 let user =
   Graphql_lwt.Schema.(obj "user"
-    ~fields:(fun _info -> [
+    ~fields:[
       field "id"
         ~typ:(non_null int)
         ~args:Arg.[]
@@ -28,7 +28,7 @@ let user =
         ~typ:(non_null string)
         ~args:Arg.[]
         ~resolve:(fun _info user -> user.name);
-    ]))
+    ])
 
 let schema =
   Graphql_lwt.Schema.(schema [
diff --git a/example/i-graphql/graphql.ml b/example/i-graphql/graphql.ml
index 48c91874..45d52d82 100644
--- a/example/i-graphql/graphql.ml
+++ b/example/i-graphql/graphql.ml
@@ -7,7 +7,7 @@ let hardcoded_users = [
 
 let user =
   Graphql_lwt.Schema.(obj "user"
-    ~fields:(fun _info -> [
+    ~fields:[
       field "id"
         ~typ:(non_null int)
         ~args:Arg.[]
@@ -16,7 +16,7 @@ let user =
         ~typ:(non_null string)
         ~args:Arg.[]
         ~resolve:(fun _info user -> user.name);
-    ]))
+    ])
 
 let schema =
   Graphql_lwt.Schema.(schema [
diff --git a/example/r-graphql/README.md b/example/r-graphql/README.md
index 605539f5..9f8e41b9 100644
--- a/example/r-graphql/README.md
+++ b/example/r-graphql/README.md
@@ -22,7 +22,7 @@ let hardcoded_users = [
 
 let user =
   Graphql_lwt.Schema.(
-    obj("user", ~fields=_info =>
+    obj("user", ~fields=
       [
         field("id", ~typ=non_null(int), ~args=Arg.[], ~resolve=(_info, user) =>
           user.id
diff --git a/example/r-graphql/graphql.re b/example/r-graphql/graphql.re
index b0b9877a..d4f14f05 100644
--- a/example/r-graphql/graphql.re
+++ b/example/r-graphql/graphql.re
@@ -10,7 +10,7 @@ let hardcoded_users = [
 
 let user =
   Graphql_lwt.Schema.(
-    obj("user", ~fields=_info =>
+    obj("user", ~fields=
       [
         field("id", ~typ=non_null(int), ~args=Arg.[], ~resolve=(_info, user) =>
           user.id

From 4294547f39ecf2bbf65c7e870b2870a36d9dacb6 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 1 Mar 2023 15:48:12 +0300
Subject: [PATCH 196/312] Adapt PostgreSQL example to recent Caqti

See recent commits for details.
---
 example/w-postgres/postgres.eml.ml | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/example/w-postgres/postgres.eml.ml b/example/w-postgres/postgres.eml.ml
index 71d3635a..7c9e844e 100644
--- a/example/w-postgres/postgres.eml.ml
+++ b/example/w-postgres/postgres.eml.ml
@@ -4,16 +4,18 @@ module T = Caqti_type
 
 let list_comments =
   let query =
-    R.collect T.unit T.(tup2 int string)
-      "SELECT id, text FROM comment" in
+    let open Caqti_request.Infix in
+    (T.unit ->* T.(tup2 int string))
+    "SELECT id, text FROM comment" in
   fun (module Db : DB) ->
     let%lwt comments_or_error = Db.collect_list query () in
     Caqti_lwt.or_fail comments_or_error
 
 let add_comment =
   let query =
-    R.exec T.string
-      "INSERT INTO comment (text) VALUES ($1)" in
+    let open Caqti_request.Infix in
+    (T.string ->. T.unit)
+    "INSERT INTO comment (text) VALUES ($1)" in
   fun text (module Db : DB) ->
     let%lwt unit_or_error = Db.exec query text in
     Caqti_lwt.or_fail unit_or_error

From 915e31849607d126a19cb958e6f10675ef53eab1 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 1 Mar 2023 16:08:35 +0300
Subject: [PATCH 197/312] Skip tests on <= 4.09 due to ppx_expect

See comment in .github/workflows/test.yml.
---
 .github/workflows/test.yml | 37 ++++++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9392d572..2211e39a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -35,22 +35,37 @@ jobs:
     - run: opam depext --yes conf-libev
     # Needed until https://github.com/reasonml/reason/pull/2660 is in opam.
     - run: opam pin add reason --yes --no-action --dev-repo
-    - run: opam install --yes --deps-only --with-test ./dream-pure.opam ./dream-httpaf.opam ./dream.opam
-    - run: opam exec -- dune runtest
+
+    # The tests require ppx_expect. The latest versions of it introduced changes
+    # in the formatting of the output, and also require OCaml >= 4.10, which
+    # makes testing on < 4.10 awkward. So, we skip tests on < 4.10.
     - run: |
         set -e
         set -x
 
-        EXAMPLES=$(find example -maxdepth 1 -type d -not -name "w-mirage*"| grep -v "^example/0" | grep -v "^example$" | sort)
-        shopt -s nullglob
+        WITH_TEST=--with-test
+        case ${{matrix.ocaml}} in
+          4.09.x) WITH_TEST=;;
+          4.08.x) WITH_TEST=;;
+        esac
+
+        opam install --yes --deps-only $WITH_TEST ./dream-pure.opam ./dream-httpaf.opam ./dream.opam
+
+        if [ ! -z "$WITH_TEST" ]
+        then
+          opam exec -- dune runtest
+
+          EXAMPLES=$(find example -maxdepth 1 -type d -not -name "w-mirage*"| grep -v "^example/0" | grep -v "^example$" | sort)
+          shopt -s nullglob
 
-        for EXAMPLE in $EXAMPLES
-        do
-          FILE=$(ls $EXAMPLE/*.ml $EXAMPLE/*.re $EXAMPLE/server/*.ml $EXAMPLE/server/*.re)
-          EXE=$(echo $FILE | sed 's/\..*$/.exe/g')
-          echo dune build $EXE
-          opam exec -- dune build $EXE
-        done
+          for EXAMPLE in $EXAMPLES
+          do
+            FILE=$(ls $EXAMPLE/*.ml $EXAMPLE/*.re $EXAMPLE/server/*.ml $EXAMPLE/server/*.re)
+            EXE=$(echo $FILE | sed 's/\..*$/.exe/g')
+            echo dune build $EXE
+            opam exec -- dune build $EXE
+          done
+        fi
 
   quickstart:
     strategy:

From f088baecb79262991d760d24ae99cf0cb866f458 Mon Sep 17 00:00:00 2001
From: Alain Armand <idkjs@users.noreply.github.com>
Date: Thu, 2 Mar 2023 10:35:16 +0100
Subject: [PATCH 198/312] Update "@opam/conf-libssl": "3" in esy.json (#224)

---
 example/r-hello/esy.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/example/r-hello/esy.json b/example/r-hello/esy.json
index 60efa4f0..67f0cf91 100644
--- a/example/r-hello/esy.json
+++ b/example/r-hello/esy.json
@@ -3,6 +3,7 @@
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
+    "@opam/conf-libssl": "3",
     "ocaml": "4.12.x"
   },
   "devDependencies": {

From 3eb6f38e4f88feceb3fb347331c4d6dcf65b384b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 2 Mar 2023 12:44:19 +0300
Subject: [PATCH 199/312] Propagate preceding fix to all examples

---
 example/1-hello/esy.json                   | 1 +
 example/2-middleware/esy.json              | 1 +
 example/3-router/esy.json                  | 1 +
 example/4-counter/esy.json                 | 1 +
 example/5-promise/esy.json                 | 1 +
 example/6-echo/esy.json                    | 1 +
 example/7-template/esy.json                | 1 +
 example/8-debug/esy.json                   | 1 +
 example/9-error/esy.json                   | 1 +
 example/a-log/esy.json                     | 1 +
 example/b-session/esy.json                 | 1 +
 example/c-cookie/esy.json                  | 1 +
 example/d-form/esy.json                    | 1 +
 example/e-json/esy.json                    | 1 +
 example/f-static/esy.json                  | 1 +
 example/g-upload/esy.json                  | 1 +
 example/h-sql/esy.json                     | 1 +
 example/i-graphql/esy.json                 | 1 +
 example/j-stream/esy.json                  | 1 +
 example/k-websocket/esy.json               | 1 +
 example/l-https/esy.json                   | 1 +
 example/r-fullstack-melange/esy.json       | 1 +
 example/r-graphql/esy.json                 | 1 +
 example/r-hello/esy.json                   | 2 +-
 example/r-template-files/esy.json          | 1 +
 example/r-template-logic/esy.json          | 1 +
 example/r-template-stream/esy.json         | 1 +
 example/r-template/esy.json                | 1 +
 example/r-tyxml/esy.json                   | 1 +
 example/w-chat/esy.json                    | 1 +
 example/w-content-security-policy/esy.json | 1 +
 example/w-esy/esy.json                     | 1 +
 example/w-flash/esy.json                   | 1 +
 example/w-fswatch/esy.json                 | 1 +
 example/w-fullstack-jsoo/esy.json          | 1 +
 example/w-fullstack-rescript/esy.json      | 1 +
 example/w-graphql-subscription/esy.json    | 1 +
 example/w-live-reload/esy.json             | 1 +
 example/w-long-polling/esy.json            | 1 +
 example/w-multipart-dump/esy.json          | 1 +
 example/w-nginx/esy.json                   | 1 +
 example/w-one-binary/esy.json              | 1 +
 example/w-postgres/esy.json                | 1 +
 example/w-query/esy.json                   | 1 +
 example/w-server-sent-events/esy.json      | 1 +
 example/w-stress-response/esy.json         | 1 +
 example/w-stress-websocket-send/esy.json   | 1 +
 example/w-template-files/esy.json          | 1 +
 example/w-template-logic/esy.json          | 1 +
 example/w-template-stream/esy.json         | 1 +
 example/w-tyxml/esy.json                   | 1 +
 example/w-upload-stream/esy.json           | 1 +
 example/z-docker-esy/esy.json              | 1 +
 example/z-fly/esy.json                     | 1 +
 example/z-heroku/esy.json                  | 1 +
 example/z-systemd/esy.json                 | 1 +
 56 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/example/1-hello/esy.json b/example/1-hello/esy.json
index 44e7bd0b..41c9595f 100644
--- a/example/1-hello/esy.json
+++ b/example/1-hello/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/2-middleware/esy.json b/example/2-middleware/esy.json
index 0dcceed9..546bd721 100644
--- a/example/2-middleware/esy.json
+++ b/example/2-middleware/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/3-router/esy.json b/example/3-router/esy.json
index 13903adf..3167c4f5 100644
--- a/example/3-router/esy.json
+++ b/example/3-router/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/4-counter/esy.json b/example/4-counter/esy.json
index b12e5e24..97d31600 100644
--- a/example/4-counter/esy.json
+++ b/example/4-counter/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/5-promise/esy.json b/example/5-promise/esy.json
index 0494123e..a9fd74a8 100644
--- a/example/5-promise/esy.json
+++ b/example/5-promise/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/6-echo/esy.json b/example/6-echo/esy.json
index fd75ff06..470f7292 100644
--- a/example/6-echo/esy.json
+++ b/example/6-echo/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/7-template/esy.json b/example/7-template/esy.json
index 44512e66..60a745c2 100644
--- a/example/7-template/esy.json
+++ b/example/7-template/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/8-debug/esy.json b/example/8-debug/esy.json
index e567e539..adb63a24 100644
--- a/example/8-debug/esy.json
+++ b/example/8-debug/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/9-error/esy.json b/example/9-error/esy.json
index e099663c..ff9a1e8a 100644
--- a/example/9-error/esy.json
+++ b/example/9-error/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/a-log/esy.json b/example/a-log/esy.json
index 349651a4..9be69450 100644
--- a/example/a-log/esy.json
+++ b/example/a-log/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/b-session/esy.json b/example/b-session/esy.json
index 758cd14a..b98e9653 100644
--- a/example/b-session/esy.json
+++ b/example/b-session/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/c-cookie/esy.json b/example/c-cookie/esy.json
index 699da488..7423404b 100644
--- a/example/c-cookie/esy.json
+++ b/example/c-cookie/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/d-form/esy.json b/example/d-form/esy.json
index 66bff2fe..2d2ed7f8 100644
--- a/example/d-form/esy.json
+++ b/example/d-form/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/e-json/esy.json b/example/e-json/esy.json
index 7d785172..cddd698e 100644
--- a/example/e-json/esy.json
+++ b/example/e-json/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/ppx_yojson_conv": "*",
diff --git a/example/f-static/esy.json b/example/f-static/esy.json
index a7757df5..9c3c9c19 100644
--- a/example/f-static/esy.json
+++ b/example/f-static/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/g-upload/esy.json b/example/g-upload/esy.json
index 7a73e2d6..fb5ecc06 100644
--- a/example/g-upload/esy.json
+++ b/example/g-upload/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/h-sql/esy.json b/example/h-sql/esy.json
index e210a12d..1c9f5ee4 100644
--- a/example/h-sql/esy.json
+++ b/example/h-sql/esy.json
@@ -1,6 +1,7 @@
 {
   "dependencies": {
     "@opam/caqti-driver-sqlite3": "^1.7.0",
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/i-graphql/esy.json b/example/i-graphql/esy.json
index 4951cb38..d46c6294 100644
--- a/example/i-graphql/esy.json
+++ b/example/i-graphql/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/j-stream/esy.json b/example/j-stream/esy.json
index 5edd68c3..c0b998ee 100644
--- a/example/j-stream/esy.json
+++ b/example/j-stream/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/k-websocket/esy.json b/example/k-websocket/esy.json
index 9c5a8ab4..dace1056 100644
--- a/example/k-websocket/esy.json
+++ b/example/k-websocket/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/l-https/esy.json b/example/l-https/esy.json
index b131c58f..4168783b 100644
--- a/example/l-https/esy.json
+++ b/example/l-https/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/r-fullstack-melange/esy.json b/example/r-fullstack-melange/esy.json
index 43fba9cf..7b4431f0 100644
--- a/example/r-fullstack-melange/esy.json
+++ b/example/r-fullstack-melange/esy.json
@@ -1,6 +1,7 @@
 {
   "name": "fullstack-melange",
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
diff --git a/example/r-graphql/esy.json b/example/r-graphql/esy.json
index feed03c0..c6ae9151 100644
--- a/example/r-graphql/esy.json
+++ b/example/r-graphql/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
diff --git a/example/r-hello/esy.json b/example/r-hello/esy.json
index 67f0cf91..ce9627a2 100644
--- a/example/r-hello/esy.json
+++ b/example/r-hello/esy.json
@@ -1,9 +1,9 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
-    "@opam/conf-libssl": "3",
     "ocaml": "4.12.x"
   },
   "devDependencies": {
diff --git a/example/r-template-files/esy.json b/example/r-template-files/esy.json
index 0747497a..7e4ef8d2 100644
--- a/example/r-template-files/esy.json
+++ b/example/r-template-files/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/r-template-logic/esy.json b/example/r-template-logic/esy.json
index d7890cdc..cd9dcb7e 100644
--- a/example/r-template-logic/esy.json
+++ b/example/r-template-logic/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
diff --git a/example/r-template-stream/esy.json b/example/r-template-stream/esy.json
index 3a60205f..f514d959 100644
--- a/example/r-template-stream/esy.json
+++ b/example/r-template-stream/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
diff --git a/example/r-template/esy.json b/example/r-template/esy.json
index d7890cdc..cd9dcb7e 100644
--- a/example/r-template/esy.json
+++ b/example/r-template/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
diff --git a/example/r-tyxml/esy.json b/example/r-tyxml/esy.json
index af985fb9..3e98c02d 100644
--- a/example/r-tyxml/esy.json
+++ b/example/r-tyxml/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
diff --git a/example/w-chat/esy.json b/example/w-chat/esy.json
index 76800773..ea3c6264 100644
--- a/example/w-chat/esy.json
+++ b/example/w-chat/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-content-security-policy/esy.json b/example/w-content-security-policy/esy.json
index fcd240c3..cc094c37 100644
--- a/example/w-content-security-policy/esy.json
+++ b/example/w-content-security-policy/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-esy/esy.json b/example/w-esy/esy.json
index 44e7bd0b..41c9595f 100644
--- a/example/w-esy/esy.json
+++ b/example/w-esy/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-flash/esy.json b/example/w-flash/esy.json
index 24eaa2e8..7a9b116f 100644
--- a/example/w-flash/esy.json
+++ b/example/w-flash/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-fswatch/esy.json b/example/w-fswatch/esy.json
index 44e7bd0b..41c9595f 100644
--- a/example/w-fswatch/esy.json
+++ b/example/w-fswatch/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-fullstack-jsoo/esy.json b/example/w-fullstack-jsoo/esy.json
index 17886e39..229dbb06 100644
--- a/example/w-fullstack-jsoo/esy.json
+++ b/example/w-fullstack-jsoo/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/js_of_ocaml": "*",
diff --git a/example/w-fullstack-rescript/esy.json b/example/w-fullstack-rescript/esy.json
index 97b6fabc..96d5ad77 100644
--- a/example/w-fullstack-rescript/esy.json
+++ b/example/w-fullstack-rescript/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-graphql-subscription/esy.json b/example/w-graphql-subscription/esy.json
index 3498f976..ea177aec 100644
--- a/example/w-graphql-subscription/esy.json
+++ b/example/w-graphql-subscription/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-live-reload/esy.json b/example/w-live-reload/esy.json
index b316c11c..81d8553a 100644
--- a/example/w-live-reload/esy.json
+++ b/example/w-live-reload/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/lambdasoup": "*",
diff --git a/example/w-long-polling/esy.json b/example/w-long-polling/esy.json
index 41852447..1a5b0b5d 100644
--- a/example/w-long-polling/esy.json
+++ b/example/w-long-polling/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-multipart-dump/esy.json b/example/w-multipart-dump/esy.json
index 3990cf79..2e112412 100644
--- a/example/w-multipart-dump/esy.json
+++ b/example/w-multipart-dump/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-nginx/esy.json b/example/w-nginx/esy.json
index d2987cbd..6e7a2c44 100644
--- a/example/w-nginx/esy.json
+++ b/example/w-nginx/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-one-binary/esy.json b/example/w-one-binary/esy.json
index b195183e..336455f2 100644
--- a/example/w-one-binary/esy.json
+++ b/example/w-one-binary/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/crunch": "*",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
diff --git a/example/w-postgres/esy.json b/example/w-postgres/esy.json
index 4c5e455b..872a5e2b 100644
--- a/example/w-postgres/esy.json
+++ b/example/w-postgres/esy.json
@@ -1,6 +1,7 @@
 {
   "dependencies": {
     "@opam/caqti-driver-postgresql": "*",
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-query/esy.json b/example/w-query/esy.json
index 36b84a6f..5eeedc80 100644
--- a/example/w-query/esy.json
+++ b/example/w-query/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-server-sent-events/esy.json b/example/w-server-sent-events/esy.json
index d1470a61..cef5e19e 100644
--- a/example/w-server-sent-events/esy.json
+++ b/example/w-server-sent-events/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-stress-response/esy.json b/example/w-stress-response/esy.json
index 1d7fc7ef..5251d4e0 100644
--- a/example/w-stress-response/esy.json
+++ b/example/w-stress-response/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-stress-websocket-send/esy.json b/example/w-stress-websocket-send/esy.json
index d884fdb5..b39923d6 100644
--- a/example/w-stress-websocket-send/esy.json
+++ b/example/w-stress-websocket-send/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-template-files/esy.json b/example/w-template-files/esy.json
index 0747497a..7e4ef8d2 100644
--- a/example/w-template-files/esy.json
+++ b/example/w-template-files/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-template-logic/esy.json b/example/w-template-logic/esy.json
index 44512e66..60a745c2 100644
--- a/example/w-template-logic/esy.json
+++ b/example/w-template-logic/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-template-stream/esy.json b/example/w-template-stream/esy.json
index 3486aba2..f9bb7642 100644
--- a/example/w-template-stream/esy.json
+++ b/example/w-template-stream/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/w-tyxml/esy.json b/example/w-tyxml/esy.json
index 6363910b..2c5ec3bb 100644
--- a/example/w-tyxml/esy.json
+++ b/example/w-tyxml/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "@opam/tyxml": "*",
diff --git a/example/w-upload-stream/esy.json b/example/w-upload-stream/esy.json
index a44c1fda..35116eb1 100644
--- a/example/w-upload-stream/esy.json
+++ b/example/w-upload-stream/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/z-docker-esy/esy.json b/example/z-docker-esy/esy.json
index 4031bb97..f66aa648 100644
--- a/example/z-docker-esy/esy.json
+++ b/example/z-docker-esy/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/z-fly/esy.json b/example/z-fly/esy.json
index 95036ebd..c1933548 100644
--- a/example/z-fly/esy.json
+++ b/example/z-fly/esy.json
@@ -4,6 +4,7 @@
     "build": "dune build"
   },
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/z-heroku/esy.json b/example/z-heroku/esy.json
index 4b315105..5838ec9a 100644
--- a/example/z-heroku/esy.json
+++ b/example/z-heroku/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
diff --git a/example/z-systemd/esy.json b/example/z-systemd/esy.json
index 4031bb97..f66aa648 100644
--- a/example/z-systemd/esy.json
+++ b/example/z-systemd/esy.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"

From 105fc05b525752f058b10cc6d7dbf823174a99bd Mon Sep 17 00:00:00 2001
From: Thomas Coopman <thomas.coopman@gmail.com>
Date: Thu, 2 Mar 2023 14:24:07 +0100
Subject: [PATCH 200/312] space-around-records was set twice (#225)

---
 .ocamlformat | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.ocamlformat b/.ocamlformat
index 23eafeb8..9eef5779 100644
--- a/.ocamlformat
+++ b/.ocamlformat
@@ -8,7 +8,6 @@ space-around-lists = false
 space-around-records = false
 break-infix = fit-or-vertical
 break-separators = after
-space-around-records = true
 break-cases = fit-or-vertical
 cases-exp-indent = 2
 exp-grouping = preserve

From ef29ea9eb77bfe6ff3225da11639510fe323c882 Mon Sep 17 00:00:00 2001
From: Lauri Laaksonen <lauri.k.laaksonen@gmail.com>
Date: Thu, 26 May 2022 18:02:34 +0300
Subject: [PATCH 201/312] Fix build failure due to label warning

---
 example/w-fullstack-rescript/client/client.res | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/example/w-fullstack-rescript/client/client.res b/example/w-fullstack-rescript/client/client.res
index b2270b6f..0cfceda0 100644
--- a/example/w-fullstack-rescript/client/client.res
+++ b/example/w-fullstack-rescript/client/client.res
@@ -3,14 +3,13 @@ open Webapi.Dom
 let () = {
   let body = document->Document.querySelector("body")
 
-  switch (body) {
+  switch body {
   | None => ()
   | Some(body) =>
-
     let text = Common.greet(#Client)
 
     let p = document->Document.createElement("p")
     p->Element.setInnerText(text)
-    body->Element.appendChild(p)
+    body->Element.appendChild(~child=p)
   }
 }

From 61fa8d709977b46e1bb40c4776819c5ed1aa33cc Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 2 Mar 2023 16:50:13 +0300
Subject: [PATCH 202/312] Update dependencies and README

---
 example/w-fullstack-rescript/README.md    | 2 +-
 example/w-fullstack-rescript/package.json | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/example/w-fullstack-rescript/README.md b/example/w-fullstack-rescript/README.md
index faee16c3..a7dd9183 100644
--- a/example/w-fullstack-rescript/README.md
+++ b/example/w-fullstack-rescript/README.md
@@ -58,7 +58,7 @@ let () = {
 
     let p = document |> Document.createElement("p")
     p->Element.setInnerText(text)
-    body |> Element.appendChild(p)
+    body |> Element.appendChild(~child=p)
   }
 }
 ```
diff --git a/example/w-fullstack-rescript/package.json b/example/w-fullstack-rescript/package.json
index 449f91cc..68df9a3e 100644
--- a/example/w-fullstack-rescript/package.json
+++ b/example/w-fullstack-rescript/package.json
@@ -4,7 +4,7 @@
     "esbuild": "*",
     "esy": "*",
     "rescript": "*",
-    "rescript-webapi": "*"
+    "rescript-webapi": "^0.5.0"
   },
   "scripts": {
     "postinstall": "npx esy install",

From 180da09056dad32f07b4c08258b1477cad5e66db Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 3 Mar 2023 10:59:36 +0300
Subject: [PATCH 203/312] Use Caqti infix operators for future-proofing

---
 dream.opam         |  2 +-
 src/sql/session.ml | 27 ++++++++++++++-------------
 src/sql/sql.ml     |  3 ++-
 3 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/dream.opam b/dream.opam
index 13eb7e14..07f82477 100644
--- a/dream.opam
+++ b/dream.opam
@@ -50,7 +50,7 @@ depends: [
   "base-unix"
   "bigarray-compat"
   "camlp-streams"
-  "caqti" {>= "1.6.0"}  # https://github.com/aantron/dream/issues/44.
+  "caqti" {>= "1.7.0"}  # Infix operators.
   "caqti-lwt"
   "conf-libev" {os != "win32"}
   "cstruct" {>= "6.0.0"}
diff --git a/src/sql/session.ml b/src/sql/session.ml
index 689990d1..28242e45 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -27,10 +27,11 @@ let serialize_payload payload =
 
 let insert =
   let query =
-    R.exec T.(tup4 string string float string) {|
+    let open Caqti_request.Infix in
+    (T.(tup4 string string float string) ->. T.unit) {|
       INSERT INTO dream_session (id, label, expires_at, payload)
       VALUES ($1, $2, $3, $4)
-    |} [@ocaml.warning "-3"] in
+    |} in
 
   fun (module Db : DB) (session : Session.session) ->
     let payload = serialize_payload session.payload in
@@ -40,9 +41,9 @@ let insert =
 
 let find_opt =
   let query =
-    R.find_opt T.string T.(tup3 string float string)
-      "SELECT label, expires_at, payload FROM dream_session WHERE id = $1"
-    [@ocaml.warning "-3"] in
+    let open Caqti_request.Infix in
+    (T.string ->? T.(tup3 string float string))
+      "SELECT label, expires_at, payload FROM dream_session WHERE id = $1" in
 
   fun (module Db : DB) id ->
     let%lwt result = Db.find_opt query id in
@@ -68,9 +69,9 @@ let find_opt =
 
 let refresh =
   let query =
-    R.exec T.(tup2 float string)
-      "UPDATE dream_session SET expires_at = $1 WHERE id = $2"
-    [@ocaml.warning "-3"] in
+    let open Caqti_request.Infix in
+    (T.(tup2 float string) ->. T.unit)
+      "UPDATE dream_session SET expires_at = $1 WHERE id = $2" in
 
   fun (module Db : DB) (session : Session.session) ->
     let%lwt result = Db.exec query (session.expires_at, session.id) in
@@ -78,9 +79,9 @@ let refresh =
 
 let update =
   let query =
-    R.exec T.(tup2 string string)
-      "UPDATE dream_session SET payload = $1 WHERE id = $2"
-    [@ocaml.warning "-3"] in
+    let open Caqti_request.Infix in
+    (T.(tup2 string string) ->. T.unit)
+      "UPDATE dream_session SET payload = $1 WHERE id = $2" in
 
   fun (module Db : DB) (session : Session.session) ->
     let payload = serialize_payload session.payload in
@@ -89,8 +90,8 @@ let update =
 
 let remove =
   let query =
-    R.exec T.string "DELETE FROM dream_session WHERE id = $1"
-    [@ocaml.warning "-3"] in
+    let open Caqti_request.Infix in
+    (T.string ->. T.unit) "DELETE FROM dream_session WHERE id = $1"  in
 
   fun (module Db : DB) id ->
     let%lwt result = Db.exec query id in
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index 68bd6b25..a5f16c0d 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -21,7 +21,8 @@ let pool_field : (_, Caqti_error.t) Caqti_lwt.Pool.t Message.field =
    around, "Enable foreign key constraint checks for SQLite3 starting at tweaks
    version 1.8." in CHANGES. *)
 let foreign_keys_on =
-  Caqti_request.exec Caqti_type.unit "PRAGMA foreign_keys = ON"
+  let open Caqti_request.Infix in
+  (Caqti_type.unit ->. Caqti_type.unit) "PRAGMA foreign_keys = ON"
   [@ocaml.warning "-3"]
 
 let post_connect (module Db : Caqti_lwt.CONNECTION) =

From 7c0182215c8bd78418a7773564be7d971c560acb Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 3 Mar 2023 12:56:53 +0300
Subject: [PATCH 204/312] Update copyright year

---
 LICENSE.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/LICENSE.md b/LICENSE.md
index afa6931d..2440b3ae 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,4 +1,4 @@
-Copyright (c) 2021-2022, Anton Bachin
+Copyright (c) 2021-2023, Anton Bachin
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

From c8286522b526b333e48ab9c4134512a353df939f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 3 Mar 2023 14:27:25 +0300
Subject: [PATCH 205/312] Clarify sorting of form fields

Prompted by #245.
---
 src/dream.mli | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/dream.mli b/src/dream.mli
index ca9e083a..53d63986 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1049,7 +1049,9 @@ val form : ?csrf:bool -> request -> (string * string) list form_result promise
     The call must be done under a session middleware, since each CSRF token is
     scoped to a session. See {!section-sessions}.
 
-    Form fields are sorted for easy pattern matching:
+    The returned form fields are sorted in alphabetical order for reliable
+    pattern matching. This is because browsers can transmit the form fields in a
+    different order from how they appear in the HTML:
 
     {[
       match%lwt Dream.form request with

From b3d1f9495de85e08c637e20077e5f551c297c203 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 2 Mar 2023 20:07:28 +0300
Subject: [PATCH 206/312] Build on OCaml 4.14, 5.0

---
 .github/workflows/test.yml | 4 +++-
 dream.opam                 | 6 ++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2211e39a..6af08df2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,6 +9,8 @@ jobs:
         os:
         - ubuntu-latest
         ocaml:
+        - 5.0.x
+        - 4.14.x
         - 4.13.x
         - 4.12.x
         - 4.11.x
@@ -55,7 +57,7 @@ jobs:
         then
           opam exec -- dune runtest
 
-          EXAMPLES=$(find example -maxdepth 1 -type d -not -name "w-mirage*"| grep -v "^example/0" | grep -v "^example$" | sort)
+          EXAMPLES=$(find example -maxdepth 1 -type d -not -name "w-mirage*" -not -name "r-tyxml" | grep -v "^example/0" | grep -v "^example$" | sort)
           shopt -s nullglob
 
           for EXAMPLE in $EXAMPLES
diff --git a/dream.opam b/dream.opam
index 07f82477..24b1ccad 100644
--- a/dream.opam
+++ b/dream.opam
@@ -88,8 +88,10 @@ depends: [
   "ppx_yojson_conv" {with-test}
   "reason" {with-test}
   "tyxml" {with-test & >= "4.5.0"}
-  "tyxml-jsx" {with-test & >= "4.5.0"}
-  "tyxml-ppx" {with-test & >= "4.5.0"}
+
+  # Blocked until https://github.com/ocsigen/tyxml/pull/312.
+  # "tyxml-jsx" {with-test & >= "4.5.0"}
+  # "tyxml-ppx" {with-test & >= "4.5.0"}
 ]
 
 build: [

From 79201d7af9b2747cf75b9d40c4b3661c42bba413 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Fri, 21 Jan 2022 18:50:33 +0100
Subject: [PATCH 207/312] Fix mirage

---
 src/mirage/adapt.ml         |  14 ++-
 src/mirage/dune             |   5 +-
 src/mirage/error_handler.ml | 225 ++++++++++++++++++------------------
 src/mirage/mirage.ml        | 153 ++++++++++++------------
 src/mirage/mirage.mli       |  13 +--
 5 files changed, 208 insertions(+), 202 deletions(-)

diff --git a/src/mirage/adapt.ml b/src/mirage/adapt.ml
index bf5d7e54..fd7c9785 100644
--- a/src/mirage/adapt.ml
+++ b/src/mirage/adapt.ml
@@ -6,23 +6,24 @@
    XXX(dinosaure): same as [src/http/adapt.ml] without [address_to_string] - which
    depends on [Unix]. *)
 
-module Dream = Dream__pure.Inmost
-module Stream = Dream__pure.Stream
+module Dream = Dream_pure
+module Stream = Dream_pure.Stream
 
 (* TODO Write a test simulating client exit during SSE; this was killing the
    server at some point. *)
 (* TODO LATER Will also need to monitor buffer accumulation and use flush. *)
 (* TODO Rewrite using Dream.next. *)
 let forward_body_general
-    (response : Dream.response)
+    (response : Dream.Message.response)
     (_write_string : ?off:int -> ?len:int -> string -> unit)
     (write_buffer : ?off:int -> ?len:int -> Stream.buffer -> unit)
     http_flush
     close =
   let bytes_since_flush = ref 0 in
+  let abort _exn = close 1000 in
 
   let rec send () =
-    Dream.body_stream response
+    Dream.Message.client_stream response
     |> fun stream ->
       Stream.read
         stream
@@ -31,6 +32,7 @@ let forward_body_general
         ~flush
         ~ping
         ~pong
+        ~exn:abort
 
   and data chunk off len _binary _fin =
     write_buffer ~off ~len chunk;
@@ -57,7 +59,7 @@ let forward_body_general
   send ()
 
 let forward_body
-    (response : Dream.response)
+    (response : Dream.Message.response)
     (body : Httpaf.Body.Writer.t) =
 
   forward_body_general
@@ -68,7 +70,7 @@ let forward_body
     (fun _code -> Httpaf.Body.Writer.close body)
 
 let forward_body_h2
-    (response : Dream.response)
+    (response : Dream.Message.response)
     (body : [ `write ] H2.Body.t) =
 
   forward_body_general
diff --git a/src/mirage/dune b/src/mirage/dune
index 6f9f8613..af16ba4d 100644
--- a/src/mirage/dune
+++ b/src/mirage/dune
@@ -7,10 +7,9 @@
   digestif
   dream.cipher
   dream.localhost
-  dream.middleware
+  dream.server
   dream-pure
-  dream.h2
-  dream.httpaf
+  dream-httpaf.h2
   lwt
   dream-mirage.paf
   dream-mirage.paf.alpn
diff --git a/src/mirage/error_handler.ml b/src/mirage/error_handler.ml
index de42ac3e..711d1897 100644
--- a/src/mirage/error_handler.ml
+++ b/src/mirage/error_handler.ml
@@ -1,7 +1,16 @@
-module Dream = Dream__pure.Inmost
+
+module Catch = Dream__server.Catch
+module Error_template = Dream__server.Error_template
+module Method = Dream_pure.Method
+module Helpers = Dream__server.Helpers
+module Log = Dream__server.Log
+module Message = Dream_pure.Message
+module Status = Dream_pure.Status
+module Stream = Dream_pure.Stream
+
 
 let log =
-  Dream__middleware.Log.sub_log "dream.mirage"
+  Dream__server.Log.sub_log "dream.mirage"
 
 let select_log = function
   | `Error -> log.error
@@ -9,14 +18,14 @@ let select_log = function
   | `Info -> log.info
   | `Debug -> log.debug
 
-let dump (error : Dream.error) =
+let dump (error : Dream__server.Catch.error) =
   let buffer = Buffer.create 4096 in
   let p format = Printf.bprintf buffer format in
 
   begin match error.condition with
   | `Response response ->
-    let status = Dream.status response in
-    p "%i %s\n" (Dream.status_to_int status) (Dream.status_to_string status)
+    let status = Message.status response in
+    p "%i %s\n" (Status.status_to_int status) (Status.status_to_string status)
 
   | `String "" ->
     p "(Library error without description payload)\n"
@@ -27,7 +36,7 @@ let dump (error : Dream.error) =
   | `Exn exn ->
     let backtrace = Printexc.get_backtrace () in
     p "%s\n" (Printexc.to_string exn);
-    backtrace |> Dream__middleware.Log.iter_backtrace (p "%s\n")
+    backtrace |> Dream__server.Log.iter_backtrace (p "%s\n")
   end;
 
   p "\n";
@@ -67,15 +76,14 @@ let dump (error : Dream.error) =
   begin match error.request with
   | None -> ()
   | Some request ->
-    let last = Dream.last request in
 
-    let major, minor = Dream.version last in
+    let major, minor = Message.version request in
     p "\n\n%s %s HTTP/%i.%i"
-      (Dream.method_to_string (Dream.method_ last))
-      (Dream.target last)
+      (Method.method_to_string (Message.method_ request))
+      (Message.target request)
       major minor;
 
-    Dream.all_headers last
+    Message.all_headers request
     |> List.iter (fun (name, value) -> p "\n%s: %s" name value);
 
     let show_variables kind =
@@ -88,101 +96,87 @@ let dump (error : Dream.error) =
         request
       |> ignore
     in
-    show_variables Dream.fold_locals;
-    show_variables Dream.fold_globals
+    show_variables Message.fold_fields
   end;
 
   Buffer.contents buffer
 
-let customize template (error : Dream.error) =
-
-  (* First, log the error. *)
-
-  begin match error.condition with
-  | `Response _ -> ()
-  | `String _ | `Exn _ as condition ->
-
-    let client =
-      match error.client with
-      | None -> ""
-      | Some client ->  " (" ^ client ^ ")"
-    in
-
-    let layer =
-      match error.layer with
-      | `TLS -> ["TLS" ^ client]
-      | `HTTP -> ["HTTP" ^ client]
-      | `HTTP2 -> ["HTTP/2" ^ client]
-      | `WebSocket -> ["WebSocket" ^ client]
-      | `App -> []
-    in
-
-    let description, backtrace =
-      match condition with
-      | `String string -> string, ""
-      | `Exn exn ->
-        let backtrace = Printexc.get_backtrace () in
-        Printexc.to_string exn, backtrace
-    in
-
-    let message = String.concat ": " (layer @ [description]) in
-
-    select_log error.severity (fun log ->
-      log ?request:error.request "%s" message);
-    backtrace |> Dream__middleware.Log.iter_backtrace (fun line ->
+  let customize template (error : Catch.error) =
+
+    (* First, log the error. *)
+  
+    begin match error.condition with
+    | `Response _ -> ()
+    | `String _ | `Exn _ as condition ->
+  
+      let client =
+        match error.client with
+        | None -> ""
+        | Some client ->  " (" ^ client ^ ")"
+      in
+  
+      let layer =
+        match error.layer with
+        | `TLS -> ["TLS" ^ client]
+        | `HTTP -> ["HTTP" ^ client]
+        | `HTTP2 -> ["HTTP/2" ^ client]
+        | `WebSocket -> ["WebSocket" ^ client]
+        | `App -> []
+      in
+  
+      let description, backtrace =
+        match condition with
+        | `String string -> string, ""
+        | `Exn exn ->
+          let backtrace = Printexc.get_backtrace () in
+          Printexc.to_string exn, backtrace
+      in
+  
+      let message = String.concat ": " (layer @ [description]) in
+  
       select_log error.severity (fun log ->
-        log ?request:error.request "%s" line))
-  end;
-
-  (* If Dream will not send a response for this error, we are done after
-     logging. Otherwise, if debugging is enabled, gather a bunch of information.
-     Then, call the template, and return the response. *)
-
-  if not error.will_send_response then
-    Lwt.return_none
-
-  else
-    let debug_dump =
-      match error.debug with
-      | false -> None
-      | true -> Some (dump error)
-    in
-
-    let response =
-      match error.condition with
-      | `Response response -> response
-      | _ ->
-        let status =
-          match error.caused_by with
-          | `Server -> `Internal_Server_Error
-          | `Client -> `Bad_Request
-        in
-        Dream.response ~status ""
-    in
-
-    (* No need to catch errors when calling the template, because every call
-       site of the error handler already has error handlers for catching double
-       faults. *)
-    response
-    |> template debug_dump
-    |> Lwt.map (fun response -> Some response)
-
-let default_response = function
-  | `Server -> Dream.response ~status:`Internal_Server_Error ""
-  | `Client -> Dream.response ~status:`Bad_Request ""
-
-let default_template debug_dump response =
-  match debug_dump with
-  | None -> Lwt.return response
-  | Some debug_dump ->
-    let status = Dream.status response in
-    let code = Dream.status_to_int status
-    and reason = Dream.status_to_string status in
-    response
-    |> Dream.with_header "Content-Type" Dream__pure.Formats.text_html
-    |> Dream.with_body
-      (Dream__middleware.Error_template.render ~debug_dump ~code ~reason)
-    |> Lwt.return
+        log ?request:error.request "%s" message);
+      backtrace |> Log.iter_backtrace (fun line ->
+        select_log error.severity (fun log ->
+          log ?request:error.request "%s" line))
+    end;
+  
+    (* If Dream will not send a response for this error, we are done after
+       logging. Otherwise, if debugging is enabled, gather a bunch of information.
+       Then, call the template, and return the response. *)
+  
+    if not error.will_send_response then
+      Lwt.return_none
+  
+    else
+      let debug_dump = dump error in
+  
+      let response =
+        match error.condition with
+        | `Response response -> response
+        | _ ->
+          let status =
+            match error.caused_by with
+            | `Server -> `Internal_Server_Error
+            | `Client -> `Bad_Request
+          in
+          Message.response ~status Stream.empty Stream.null
+      in
+  
+      (* No need to catch errors when calling the template, because every call
+         site of the error handler already has error handlers for catching double
+         faults. *)
+      let%lwt response = template error debug_dump response in
+      Lwt.return (Some response)
+
+  let default_response = function
+    | `Server ->
+      Message.response ~status:`Internal_Server_Error Stream.empty Stream.null
+    | `Client ->
+      Message.response ~status:`Bad_Request Stream.empty Stream.null
+  
+let default_template _error _debug_dump response =
+  Lwt.return response
 
 let default =
   customize default_template
@@ -190,14 +184,18 @@ let default =
 let double_faults f default =
   Lwt.catch f begin fun exn ->
     let backtrace = Printexc.get_backtrace () in
-    log.error (fun log -> log "Error handler raised: %s" (Printexc.to_string exn));
+
+    log.error (fun log ->
+      log "Error handler raised: %s" (Printexc.to_string exn));
+
     backtrace
-    |> Dream__middleware.Log.iter_backtrace (fun line ->
+    |> Log.iter_backtrace (fun line ->
       log.error (fun log -> log "%s" line));
+
     default ()
   end
 
-let httpaf app user's_error_handler = fun client_address ?request:_ error start_response ->
+let httpaf user's_error_handler = fun client_address ?request:_ error start_response ->
   let condition, severity, caused_by = match error with
     | `Exn exn ->
       `Exn exn,
@@ -213,14 +211,13 @@ let httpaf app user's_error_handler = fun client_address ?request:_ error start_
       `Error,
       `Server in
   let error = {
-    Dream.condition;
+    Catch.condition;
     layer = `HTTP;
     caused_by;
     request = None;
     response = None;
     client= Some client_address;
     severity;
-    debug = Dream.debug app;
     will_send_response = true;
   } in
 
@@ -230,7 +227,7 @@ let httpaf app user's_error_handler = fun client_address ?request:_ error start_
       let response = match response with
         | Some response -> response
         | None -> default_response caused_by in
-      let headers = Httpaf.Headers.of_list (Dream.all_headers response) in
+      let headers = Httpaf.Headers.of_list (Message.all_headers response) in
       let body = start_response headers in
       Adapt.forward_body response body;
       Lwt.return_unit
@@ -241,12 +238,16 @@ let httpaf app user's_error_handler = fun client_address ?request:_ error start_
 let respond_with_option f =
   double_faults
     (fun () ->
-       f ()
-       |> Lwt.map (function
-         | Some response -> response
-         | None -> Dream.response ~status:`Internal_Server_Error ""))
+      f ()
+      |> Lwt.map (function
+        | Some response -> response
+        | None ->
+          Message.response
+            ~status:`Internal_Server_Error Stream.empty Stream.null))
     (fun () ->
-       Dream.empty `Internal_Server_Error)
+      Message.response ~status:`Internal_Server_Error Stream.empty Stream.null
+      |> Lwt.return)
+  
 
 let app user's_error_handler = fun error ->
   respond_with_option (fun () -> user's_error_handler error)
diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 1976a8ca..95292282 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -1,16 +1,24 @@
-module Dream = Dream__pure.Inmost
+module Catch = Dream__server.Catch
+module Error_template = Dream__server.Error_template
+module Method = Dream_pure.Method
+module Helpers = Dream__server.Helpers
+module Log = Dream__server.Log
+module Message = Dream_pure.Message
+module Status = Dream_pure.Status
+module Stream = Dream_pure.Stream
+
 
 open Rresult
 open Lwt.Infix
 
-let to_dream_method meth = Httpaf.Method.to_string meth |> Dream.string_to_method
-let to_httpaf_status status = Dream.status_to_int status |> Httpaf.Status.of_code
-let to_h2_status status = Dream.status_to_int status |> H2.Status.of_code
+let to_dream_method meth = Httpaf.Method.to_string meth |> Method.string_to_method
+let to_httpaf_status status = Status.status_to_int status |> Httpaf.Status.of_code
+let to_h2_status status = Status.status_to_int status |> H2.Status.of_code
 let sha1 str = Digestif.SHA1.(to_raw_string (digest_string str))
 let const x = fun _ -> x
 let ( >>? ) = Lwt_result.bind
 
-let wrap_handler_httpaf app _user's_error_handler user's_dream_handler =
+let wrap_handler_httpaf _user's_error_handler user's_dream_handler =
   let httpaf_request_handler = fun client reqd ->
     let httpaf_request = Httpaf.Reqd.request reqd in
     let method_ = to_dream_method httpaf_request.meth in
@@ -19,7 +27,7 @@ let wrap_handler_httpaf app _user's_error_handler user's_dream_handler =
     let headers = Httpaf.Headers.to_list httpaf_request.headers in
     let body    = Httpaf.Reqd.request_body reqd in
 
-    let read ~data ~close ~flush:_ ~ping:_ ~pong:_ =
+    let read ~data ~flush:_ ~ping:_ ~pong:_ ~close ~exn:_ =
       Httpaf.Body.Reader.schedule_read
         body
         ~on_eof:(fun () -> close 1000)
@@ -27,10 +35,15 @@ let wrap_handler_httpaf app _user's_error_handler user's_dream_handler =
     in
     let close _close =
       Httpaf.Body.Reader.close body in
+    let abort _close =
+      Httpaf.Body.Reader.close body in
     let body =
-      Dream__pure.Stream.read_only ~read ~close in
+      Stream.reader ~read ~close ~abort in
 
-    let request = Dream.request_from_http ~app ~client ~method_ ~target ~version ~headers body in
+    let client_stream = Stream.(stream no_reader no_writer) in
+    let server_stream = Stream.(stream body no_writer) in
+
+    let request = Message.request ~method_ ~target ~version ~headers client_stream server_stream in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -58,7 +71,7 @@ let wrap_handler_httpaf app _user's_error_handler user's_dream_handler =
               transmit the resulting error response. *)
         let forward_response response =
           let headers =
-            Httpaf.Headers.of_list (Dream.all_headers response) in
+            Httpaf.Headers.of_list (Message.all_headers response) in
 
           (* let version =
             match Dream.version_override response with
@@ -66,7 +79,7 @@ let wrap_handler_httpaf app _user's_error_handler user's_dream_handler =
             | Some (major, minor) -> Some Httpaf.Version.{major; minor}
           in *)
           let status =
-            to_httpaf_status (Dream.status response) in
+            to_httpaf_status (Message.status response) in
           (* let reason =
             Dream.reason_override response in *)
 
@@ -93,61 +106,60 @@ let wrap_handler_httpaf app _user's_error_handler user's_dream_handler =
   httpaf_request_handler
 
 let request_handler
-  : Dream.app -> Dream.error_handler -> Dream.handler -> string -> Alpn.reqd -> unit
-  = fun app
-      (user's_error_handler : Dream.error_handler)
-      (user's_dream_handler : Dream.handler) -> ();
+  : Catch.error_handler -> Message.handler -> string -> Alpn.reqd -> unit
+  = fun (user's_error_handler : Catch.error_handler)
+      (user's_dream_handler : Message.handler) -> ();
     fun client_address -> function
-    | Alpn.Reqd_HTTP_1_1 reqd -> wrap_handler_httpaf app user's_error_handler user's_dream_handler client_address reqd
+    | Alpn.Reqd_HTTP_1_1 reqd -> wrap_handler_httpaf user's_error_handler user's_dream_handler client_address reqd
     | _ -> assert false
 
 let error_handler
-  : Dream.app -> Dream.error_handler -> string -> ?request:Alpn.request -> Alpn.server_error ->
+  : Catch.error_handler -> string -> ?request:Alpn.request -> Alpn.server_error ->
     (Alpn.headers -> Alpn.body) -> unit
-  = fun app
-      (user's_error_handler : Dream.error_handler) -> ();
+  = fun 
+      (user's_error_handler : Catch.error_handler) -> ();
     fun client ?request error start_response ->
   match request with
   | Some (Alpn.Request_HTTP_1_1 request) ->
     let start_response hdrs : Httpaf.Body.Writer.t = match start_response Alpn.(Headers_HTTP_1_1 hdrs) with
       | Alpn.Body_HTTP_1_1 (Alpn.Wr, Alpn.Body_wr body) -> body
       | _ -> Fmt.failwith "Impossible to respond with an h2 respond to an HTTP/1.1 client" in
-    Error_handler.httpaf app user's_error_handler client ?request:(Some request) error start_response
+    Error_handler.httpaf user's_error_handler client ?request:(Some request) error start_response
   | _ -> assert false (* TODO *)
 
 module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirage_stack.V4V6) = struct
-  include Dream__pure.Stream
-  include Dream__pure.Inmost
-
-  include Dream__middleware.Log
-  include Dream__middleware.Log.Make (Pclock)
-  include Dream__middleware.Echo
-
+  include Dream_pure
+  include Method
+  include Status
+
+  include Log
+  include Log.Make (Pclock)
+  include Dream__server.Echo
+  
   let default_log =
-    Dream__middleware.Log.sub_log (Logs.Src.name Logs.default)
-
+    Log.sub_log (Logs.Src.name Logs.default)
+  
   let error = default_log.error
   let warning = default_log.warning
   let info = default_log.info
   let debug = default_log.debug
-
-  include Dream__middleware.Router
-
-  include Dream__middleware.Session
-  include Dream__middleware.Session.Make (Pclock)
-
-  include Dream__middleware.Origin_referrer_check
-  include Dream__middleware.Form
-  include Dream__middleware.Upload
-  include Dream__middleware.Csrf
-
+  
+  include Dream__server.Router
+  
+  include Dream__server.Session
+  include Dream__server.Session.Make (Pclock)
+
+  include Dream__server.Origin_referrer_check
+  include Dream__server.Form
+  include Dream__server.Upload
+  include Dream__server.Csrf
+  
   let content_length =
-    Dream__middleware.Content_length.content_length
-
-  include Dream__middleware.Lowercase_headers
-  include Dream__middleware.Catch
-  include Dream__middleware.Request_id
-  include Dream__middleware.Site_prefix
+    Dream__server.Content_length.content_length
+  
+  include Dream__server.Lowercase_headers
+  include Dream__server.Catch
+  include Dream__server.Site_prefix
 
   let error_template =
     Error_handler.customize
@@ -155,12 +167,16 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
   let random =
     Dream__cipher.Random.random
 
-  include Dream__pure.Formats
+  include Formats
+
+  let not_found = Helpers.not_found
+
+  let html = Helpers.html
 
   let log =
-    Dream__middleware.Log.convenience_log
+    Log.convenience_log
 
-  include Dream__middleware.Tag
+  include Dream__server.Tag
 
   let now () = Ptime.to_float_s (Ptime.v (Pclock.now_d_ps ()))
 
@@ -170,9 +186,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
   let verify_csrf_token = verify_csrf_token ~now
   let csrf_tag = csrf_tag ~now
   let form_tag = form_tag ~now
-
-  include Dream__pure.Formats
-
+  
   include Paf_mirage.Make (Time) (Stack)
 
   let alpn =
@@ -184,13 +198,12 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
     let injection (_, flow) = R.T flow in
     { Alpn.alpn; peer; injection; }
 
-  let built_in_middleware =
-    Dream__pure.Inmost.pipeline [
-      Dream__middleware.Lowercase_headers.lowercase_headers;
-      Dream__middleware.Content_length.content_length;
-      Dream__middleware.Catch.catch_errors;
-      Dream__middleware.Request_id.assign_request_id;
-      Dream__middleware.Site_prefix.chop_site_prefix;
+  let built_in_middleware prefix error_handler=
+    Message.pipeline [
+      Dream__server.Lowercase_headers.lowercase_headers;
+      Dream__server.Content_length.content_length;
+      Dream__server.Catch.catch (Error_handler.app error_handler);
+      Dream__server.Site_prefix.with_site_prefix prefix;
     ]
 
   let localhost_certificate =
@@ -202,22 +215,18 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
 
   let https ?stop ~port ?(prefix= "") stack
     ?(cfg= Tls.Config.server ~certificates:localhost_certificate ())
-    ?error_handler:(user's_error_handler : error_handler = Error_handler.default) (user's_dream_handler : handler) =
-    let prefix = prefix
-      |> Dream__pure.Formats.from_path
-      |> Dream__pure.Formats.drop_trailing_slash in
+    ?error_handler:(user's_error_handler : error_handler = Error_handler.default) (user's_dream_handler : Message.handler) =
     initialize ~setup_outputs:ignore ;    
-    let app = Dream__pure.Inmost.new_app (Error_handler.app user's_error_handler) prefix in
     let accept t = accept t >>? fun flow ->
       let edn = Stack.TCP.dst flow in
       TLS.server_of_flow cfg flow >>= function
       | Ok flow -> Lwt.return_ok (edn, flow)
       | Error err -> Lwt.return (R.error_msgf "%a" TLS.pp_write_error err) in
     let user's_dream_handler =
-      built_in_middleware user's_dream_handler in
-    let error_handler = error_handler app user's_error_handler in
+      built_in_middleware prefix user's_error_handler user's_dream_handler in
+    let error_handler = error_handler user's_error_handler in
     let request_handler =
-      request_handler app user's_error_handler user's_dream_handler in
+      request_handler user's_error_handler user's_dream_handler in
     let service = Alpn.service alpn ~error_handler ~request_handler accept close in
     init ~port stack >>= fun t ->
     let `Initialized th = serve ?stop service t in th
@@ -235,21 +244,17 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
   let http ?stop ~port ?(prefix= "") ?(protocol= `HTTP_1_1) stack
     ?error_handler:(user's_error_handler= Error_handler.default)
     user's_dream_handler =
-    let prefix = prefix
-      |> Dream__pure.Formats.from_path
-      |> Dream__pure.Formats.drop_trailing_slash in
     initialize ~setup_outputs:ignore ;
-    let app = Dream__pure.Inmost.new_app (Error_handler.app user's_error_handler) prefix in
     let accept t = accept t >>? fun flow ->
       let edn = Stack.TCP.dst flow in
       Lwt.return_ok (edn, flow) in
     let user's_dream_handler =
-      built_in_middleware user's_dream_handler in
-    let error_handler = error_handler app user's_error_handler in
-    let request_handler = request_handler app user's_error_handler user's_dream_handler in
+      built_in_middleware prefix user's_error_handler user's_dream_handler in
+    let error_handler = error_handler user's_error_handler in
+    let request_handler = request_handler user's_error_handler user's_dream_handler in
     let service = Alpn.service (alpn protocol) ~error_handler ~request_handler accept close in
     init ~port stack >>= fun t ->
     let `Initialized th = serve ?stop service t in th
 end
 
-include Dream
+include Message
\ No newline at end of file
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index 84d4d2f3..b10a71f2 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -1,10 +1,10 @@
-type incoming
-type outgoing
+type client
+type server
 
 type 'a message
 
-type request = incoming message
-type response = outgoing message
+type request = client message
+type response = server message
 
 type handler = request -> response Lwt.t
 type middleware = handler -> handler
@@ -114,7 +114,7 @@ module Make
 
   val html : ?status:status -> ?code:int -> ?headers:(string * string) list -> string -> response Lwt.t
 
-  val param : string -> request -> string
+  val param : request -> string ->  string
 
   type csrf_result =
     [ `Ok
@@ -176,13 +176,12 @@ module Make
     ; response : response option
     ; client : string option
     ; severity : log_level
-    ; debug : bool
     ; will_send_response : bool }
 
   type error_handler = error -> response option Lwt.t
 
   val error_template :
-    (string option -> response -> response Lwt.t) -> error_handler
+  (error -> string -> response -> response Lwt.t) -> error_handler
 
   val https :
        ?stop:Lwt_switch.t

From d26fd04ceae380a2042dbe719acf4b830e9b0513 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Tue, 25 Jan 2022 10:37:08 +0100
Subject: [PATCH 208/312] Finish Mirage fix

---
 src/mirage/adapt.ml   |  2 +-
 src/mirage/mirage.ml  | 59 +++++++++++++++++++++++++++++++++++++++++++
 src/mirage/mirage.mli | 28 ++++++++++++++++++++
 3 files changed, 88 insertions(+), 1 deletion(-)

diff --git a/src/mirage/adapt.ml b/src/mirage/adapt.ml
index fd7c9785..5bac8680 100644
--- a/src/mirage/adapt.ml
+++ b/src/mirage/adapt.ml
@@ -20,7 +20,7 @@ let forward_body_general
     http_flush
     close =
   let bytes_since_flush = ref 0 in
-  let abort _exn = close 1000 in
+  let abort _exn = Printf.printf "ABORT\n%!"; close 1000 in
 
   let rec send () =
     Dream.Message.client_stream response
diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 95292282..cf4eca48 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -255,6 +255,65 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
     let service = Alpn.service (alpn protocol) ~error_handler ~request_handler accept close in
     init ~port stack >>= fun t ->
     let `Initialized th = serve ?stop service t in th
+
+let respond = Helpers.respond
+    let empty = Helpers.empty
+
+
+let validate_path request =
+  let path = Dream__server.Router.path request in
+
+  let has_slash component = String.contains component '/' in
+  let has_backslash component = String.contains component '\\' in
+  let has_slash = List.exists has_slash path in
+  let has_backslash = List.exists has_backslash path in
+  let has_dot = List.exists ((=) Filename.current_dir_name) path in
+  let has_dotdot = List.exists ((=) Filename.parent_dir_name) path in
+  let has_empty = List.exists ((=) "") path in
+  let is_empty = path = [] in
+
+  if has_slash ||
+     has_backslash ||
+     has_dot ||
+     has_dotdot ||
+     has_empty ||
+     is_empty then
+    None
+
+  else
+    let path = String.concat Filename.dir_sep path in
+    if Filename.is_relative path then
+      Some path
+    else
+      None
+
+let static ~loader local_root = fun request ->
+
+  if not @@ Method.methods_equal (Message.method_ request) `GET then
+    Message.response ~status:`Not_Found Stream.empty Stream.null
+    |> Lwt.return
+
+  else
+    match validate_path request with
+    | None ->
+      Message.response ~status:`Not_Found Stream.empty Stream.null
+      |> Lwt.return
+
+    | Some path ->
+      let%lwt response = loader local_root path request in
+      if not (Message.has_header response "Content-Type") then begin
+        match Message.status response with
+        | `OK
+        | `Non_Authoritative_Information
+        | `No_Content
+        | `Reset_Content
+        | `Partial_Content ->
+          Message.add_header response "Content-Type" (Magic_mime.lookup path)
+        | _ ->
+          ()
+      end;
+      Lwt.return response
+
 end
 
 include Message
\ No newline at end of file
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index b10a71f2..5ec4db8b 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -116,6 +116,34 @@ module Make
 
   val param : request -> string ->  string
 
+  val empty :
+  ?headers:(string * string) list ->
+    status -> response Lwt.t
+(** Same as {!Dream.val-response} with the empty string for a body. *)
+
+val static :
+  loader:(string -> string -> handler) ->
+    string -> handler
+(** Serves static files from a local directory. See example
+    {{:https://github.com/aantron/dream/tree/master/example/f-static#files}
+    [f-static]}.
+
+    {[
+      let () =
+        Dream.run
+        @@ Dream.router {
+          Dream.get "/static/**" @@ Dream.static "www/static";
+        }
+        @@ Dream.not_found
+    ]}
+*)
+val respond :
+  ?status:[< status ] ->
+  ?code:int ->
+  ?headers:(string * string) list ->
+    string -> response Lwt.t
+(** Same as {!Dream.val-response}, but the new {!type-response} is wrapped in a
+    {!type-promise}. *)
   type csrf_result =
     [ `Ok
     | `Expired of float

From ca3faeaab9128f970d416443add0ac46c01b92b4 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Tue, 25 Jan 2022 16:42:31 +0100
Subject: [PATCH 209/312] Fix for Mirage again

---
 src/eml/eml.ml        | 2 +-
 src/mirage/dune       | 3 ++-
 src/mirage/mirage.ml  | 6 +++---
 src/mirage/mirage.mli | 2 +-
 4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/eml/eml.ml b/src/eml/eml.ml
index 1ea43f96..64c714f3 100644
--- a/src/eml/eml.ml
+++ b/src/eml/eml.ml
@@ -744,7 +744,7 @@ struct
 
         output.format ("%" ^ format);
         if needs_escape then
-          output.print "(Dream.html_escape ";
+          output.print "(Dream_pure.Formats.html_escape ";
         output.print "(\n";
 
         Printf.ksprintf output.print "#%i \"%s\"\n" (line + 1) location;
diff --git a/src/mirage/dune b/src/mirage/dune
index af16ba4d..61f5ee3d 100644
--- a/src/mirage/dune
+++ b/src/mirage/dune
@@ -6,11 +6,12 @@
   bigstringaf
   digestif
   dream.cipher
-  dream.localhost
   dream.server
+  dream.certificate
   dream-pure
   dream-httpaf.h2
   lwt
+  tcpip
   dream-mirage.paf
   dream-mirage.paf.alpn
   dream-mirage.paf.mirage
diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index cf4eca48..3e9dcf03 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -127,7 +127,7 @@ let error_handler
     Error_handler.httpaf user's_error_handler client ?request:(Some request) error start_response
   | _ -> assert false (* TODO *)
 
-module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirage_stack.V4V6) = struct
+module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip.Stack.V4V6) = struct
   include Dream_pure
   include Method
   include Status
@@ -208,9 +208,9 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Mirag
 
   let localhost_certificate =
     let crts = Rresult.R.failwith_error_msg
-      (X509.Certificate.decode_pem_multiple (Cstruct.of_string Dream__localhost.certificate)) in
+      (X509.Certificate.decode_pem_multiple (Cstruct.of_string Dream__certificate.localhost_certificate)) in
     let key = Rresult.R.failwith_error_msg
-      (X509.Private_key.decode_pem (Cstruct.of_string Dream__localhost.key)) in
+      (X509.Private_key.decode_pem (Cstruct.of_string Dream__certificate.localhost_certificate_key)) in
     `Single (crts, key)
 
   let https ?stop ~port ?(prefix= "") stack
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index 5ec4db8b..ff5248c9 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -12,7 +12,7 @@ type middleware = handler -> handler
 module Make
   (Pclock : Mirage_clock.PCLOCK)
   (Time : Mirage_time.S)
-  (Stack : Mirage_stack.V4V6) : sig
+  (Stack : Tcpip.Stack.V4V6) : sig
 
   type route
 

From 3eb7834bb18fcba8c8f065e69b9a23ec31d91fad Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Tue, 25 Jan 2022 16:43:07 +0100
Subject: [PATCH 210/312] Mirage: add mirage-stack dependency

---
 dream.opam | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dream.opam b/dream.opam
index 24b1ccad..f9565f92 100644
--- a/dream.opam
+++ b/dream.opam
@@ -65,6 +65,7 @@ depends: [
   "lwt_ssl"
   "logs" {>= "0.5.0"}
   "magic-mime"
+  "mirage-stack"
   "mirage-clock" {>= "3.0.0"}  # now_d_ps : unit -> int * int64.
   "mirage-crypto" {>= "0.8.1"}  # AES-256-GCM.
   "mirage-crypto-rng"

From abaf7d551b9211ff29a76d4c11bd879d67c6b614 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Thu, 27 Jan 2022 17:34:17 +0100
Subject: [PATCH 211/312] Mirage: add all response helpers

---
 src/mirage/mirage.ml  |  16 +++++-
 src/mirage/mirage.mli | 111 ++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 121 insertions(+), 6 deletions(-)

diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 3e9dcf03..59d50de0 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -169,9 +169,23 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
 
   include Formats
 
+  type 'a promise = 'a Lwt.t
+
   let not_found = Helpers.not_found
 
+  (* Responses *)
+
+  let response = Helpers.response_with_body
+  let respond = Helpers.respond
   let html = Helpers.html
+  let json = Helpers.json
+  let redirect = Helpers.redirect
+  let empty = Helpers.empty
+  let stream = Helpers.stream
+  let websocket = Helpers.websocket
+  let status = Message.status
+
+
 
   let log =
     Log.convenience_log
@@ -256,8 +270,6 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
     init ~port stack >>= fun t ->
     let `Initialized th = serve ?stop service t in th
 
-let respond = Helpers.respond
-    let empty = Helpers.empty
 
 
 let validate_path request =
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index ff5248c9..715456d9 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -112,13 +112,116 @@ module Make
   val info      : ('a, unit) conditional_log
   (* val debug     : ('a, unit) conditional_log *)
 
-  val html : ?status:status -> ?code:int -> ?headers:(string * string) list -> string -> response Lwt.t
-
   val param : request -> string ->  string
 
+  type 'a promise = 'a Lwt.t
+
+  (** {1 Responses} *)
+
+  val response :
+    ?status:[< status ] ->
+    ?code:int ->
+    ?headers:(string * string) list ->
+      string -> response
+  (** Creates a new {!type-response} with the given string as body. [~code] and
+      [~status] are two ways to specify the {!type-status} code, which is [200 OK]
+      by default. The headers are empty by default.
+
+      Note that browsers may interpret lack of a [Content-Type:] header as if its
+      value were [application/octet-stream] or [text/html; charset=us-ascii],
+      which will prevent correct interpretation of UTF-8 strings. Either add a
+      [Content-Type:] header using [~headers] or {!Dream.add_header}, or use a
+      wrapper like {!Dream.html}. The modern [Content-Type:] for HTML is
+      [text/html; charset=utf-8]. See {!Dream.text_html}. *)
+
+  val respond :
+    ?status:[< status ] ->
+    ?code:int ->
+    ?headers:(string * string) list ->
+      string -> response promise
+  (** Same as {!Dream.val-response}, but the new {!type-response} is wrapped in a
+      {!type-promise}. *)
+
+  val html :
+    ?status:[< status ] ->
+    ?code:int ->
+    ?headers:(string * string) list ->
+      string -> response promise
+  (** Same as {!Dream.respond}, but adds [Content-Type: text/html; charset=utf-8].
+      See {!Dream.text_html}.
+
+      As your Web app develops, consider adding [Content-Security-Policy] headers,
+      as described in example
+      {{:https://github.com/aantron/dream/tree/master/example/w-content-security-policy#files}
+      [w-content-security-policy]}. These headers are completely optional, but
+      they can provide an extra layer of defense for a mature app. *)
+
+  val json :
+    ?status:[< status ] ->
+    ?code:int ->
+    ?headers:(string * string) list ->
+      string -> response promise
+  (** Same as {!Dream.respond}, but adds [Content-Type: application/json]. See
+      {!Dream.application_json}. *)
+
+  val redirect :
+    ?status:[< redirection ] ->
+    ?code:int ->
+    ?headers:(string * string) list ->
+      request -> string -> response promise
+  (** Creates a new {!type-response}. Adds a [Location:] header with the given
+      string. The default status code is [303 See Other], for a temporary
+      redirection. Use [~status:`Moved_Permanently] or [~code:301] for a permanent
+      redirection.
+
+      If you use [~code], be sure the number follows the pattern [3xx], or most
+      browsers and other clients won't actually perform a redirect.
+
+      The {!type-request} is used for retrieving the site prefix, if the string is
+      an absolute path. Most applications don't have a site prefix. *)
+
   val empty :
-  ?headers:(string * string) list ->
-    status -> response Lwt.t
+    ?headers:(string * string) list ->
+      status -> response promise
+  (** Same as {!Dream.val-response} with the empty string for a body. *)
+
+  val stream :
+    ?status:[< status ] ->
+    ?code:int ->
+    ?headers:(string * string) list ->
+      (response -> unit promise) -> response promise
+  (** Same as {!Dream.val-respond}, but calls {!Dream.set_stream} internally to
+      prepare the response for stream writing, and then runs the callback
+      asynchronously to do it. See example
+      {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
+      [j-stream]}.
+
+      {[
+        fun request ->
+          Dream.stream (fun response ->
+            let%lwt () = Dream.write response "foo" in
+            Dream.close_stream response)
+      ]} *)
+
+  val websocket :
+    ?headers:(string * string) list ->
+      (response -> unit promise) -> response promise
+  (** Creates a fresh [101 Switching Protocols] response. Once this response is
+      returned to Dream's HTTP layer, the callback is passed a new
+      {!type-websocket}, and the application can begin using it. See example
+      {{:https://github.com/aantron/dream/tree/master/example/k-websocket#files}
+      [k-websocket]} \[{{:http://dream.as/k-websocket} playground}\].
+
+      {[
+        let my_handler = fun request ->
+          Dream.websocket (fun websocket ->
+            let%lwt () = Dream.send websocket "Hello, world!" in
+            Dream.close_websocket websocket);
+      ]} *)
+
+  val status : response -> status
+  (** Response {!type-status}. For example, [`OK]. *)
+
 (** Same as {!Dream.val-response} with the empty string for a body. *)
 
 val static :

From e75e50e70e8be93ecfc0d0335ac53e7cc8605387 Mon Sep 17 00:00:00 2001
From: Thibaut Mattio <thibaut.mattio@gmail.com>
Date: Wed, 26 Jan 2022 17:20:07 +0100
Subject: [PATCH 212/312] dream-mirage: fix opam dependencies

---
 dream-mirage.opam | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dream-mirage.opam b/dream-mirage.opam
index dc846e77..24b3f978 100644
--- a/dream-mirage.opam
+++ b/dream-mirage.opam
@@ -50,7 +50,10 @@ depends: [
   "dream"
   "dune" {>= "2.7.0"}
   "dream"
+  "dream-pure"
+  "dream-httpaf"
   "bigarray-compat"
+  "mimic"
   "bigstringaf"
   "digestif" {>= "1.0.0"}
   "lwt"

From f7b45a357e5bd0170a512e8ace431de8e7600d4f Mon Sep 17 00:00:00 2001
From: Thibaut Mattio <thibaut.mattio@gmail.com>
Date: Wed, 26 Jan 2022 17:25:19 +0100
Subject: [PATCH 213/312] Add dependency to dream-pure in dream-httpaf

@aantron: This shouldn't be an = constraint, but that can be addressed
in a future commit. The dependency itself is already an improvement.
---
 dream-httpaf.opam | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dream-httpaf.opam b/dream-httpaf.opam
index d75f97de..edc02d1f 100644
--- a/dream-httpaf.opam
+++ b/dream-httpaf.opam
@@ -20,6 +20,7 @@ depends: [
   "lwt_ssl"
   "ocaml" {>= "4.08.0"}
   "ssl" {>= "0.5.8"}  # Ssl.get_negotiated_alpn_protocol.
+  "dream-pure" {= version}
 
   # Currently vendored.
   # "gluten"

From c800706b74943f9fb6098937b5e3acf0d693c05e Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Fri, 28 Jan 2022 11:52:26 +0100
Subject: [PATCH 214/312] Mirage: maximize shared API

---
 src/mirage/mirage.ml  |  283 ++++--
 src/mirage/mirage.mli | 2011 ++++++++++++++++++++++++++++++++++++++---
 2 files changed, 2095 insertions(+), 199 deletions(-)

diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 59d50de0..694d5c42 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -6,6 +6,11 @@ module Log = Dream__server.Log
 module Message = Dream_pure.Message
 module Status = Dream_pure.Status
 module Stream = Dream_pure.Stream
+module Random = Dream__cipher.Random
+module Router = Dream__server.Router
+module Query = Dream__server.Query
+module Cookie = Dream__server.Cookie
+module Tag = Dream__server.Tag
 
 
 open Rresult
@@ -145,9 +150,12 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let debug = default_log.debug
   
   include Dream__server.Router
+  module Session = struct 
+    include Dream__server.Session
+    include Dream__server.Session.Make (Pclock)
+  end
+  module Flash = Dream__server.Flash
   
-  include Dream__server.Session
-  include Dream__server.Session.Make (Pclock)
 
   include Dream__server.Origin_referrer_check
   include Dream__server.Form
@@ -169,9 +177,34 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
 
   include Formats
 
-  type 'a promise = 'a Lwt.t
+  (* Types *)
+
+  type request = Message.request
+  type response = Message.response
+  type handler = Message.handler
+  type middleware = Message.middleware
+  type route = Router.route
+
+  type 'a message = 'a Message.message
+  type client = Message.client
+  type server = Message.server
+  type 'a promise = 'a Message.promise
 
-  let not_found = Helpers.not_found
+
+  (* Requests *)
+
+  let client = Helpers.client
+  let https = Helpers.https
+  let method_ = Message.method_
+  let target = Message.target
+  let prefix = Router.prefix
+  let path = Router.path
+  let version = Message.version
+  let set_client = Helpers.set_client
+  let set_method_ = Message.set_method_
+  let query = Query.query
+  let queries = Query.queries
+  let all_queries = Query.all_queries
 
   (* Responses *)
 
@@ -185,12 +218,97 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let websocket = Helpers.websocket
   let status = Message.status
 
+  (* Headers *)
+
+  let header = Message.header
+  let headers = Message.headers
+  let all_headers = Message.all_headers
+  let has_header = Message.has_header
+  let add_header = Message.add_header
+  let drop_header = Message.drop_header
+  let set_header = Message.set_header
+
+  (* Cookies *)
+
+  let set_cookie = Cookie.set_cookie
+  let drop_cookie = Cookie.drop_cookie
+  let cookie = Cookie.cookie
+  let all_cookies = Cookie.all_cookies
+
+
+  (* Bodies *)
+
+  let body = Message.body
+  let set_body = Message.set_body
+  let read = Helpers.read
+  let write = Helpers.write
+  let flush = Helpers.flush
+  let close = Message.close
+  type buffer = Stream.buffer
+  type stream = Stream.stream
+  let client_stream = Message.client_stream
+  let server_stream = Message.server_stream
+  let set_client_stream = Message.set_client_stream
+  let set_server_stream = Message.set_server_stream
+  let read_stream = Stream.read
+  let write_stream = Stream.write
+  let flush_stream = Stream.flush
+  let ping_stream = Stream.ping
+  let pong_stream = Stream.pong
+  let close_stream = Stream.close
+  let abort_stream = Stream.abort
+
+
+
+  (* Middleware *)
+
+  let no_middleware = Message.no_middleware
+  let pipeline = Message.pipeline
+
+
+  (* Routing *)
+
+  let router = Router.router
+  let get = Router.get
+  let post = Router.post
+  let put = Router.put
+  let delete = Router.delete
+  let head = Router.head
+  let connect = Router.connect
+  let options = Router.options
+  let trace = Router.trace
+  let patch = Router.patch
+  let any = Router.any
+  let not_found = Helpers.not_found
+  let param = Router.param
+  let scope = Router.scope
+  let no_route = Router.no_route
+
+  (* Sessions *)
+
+  let session = Session.session
+  let put_session = Session.put_session
+  let all_session_values = Session.all_session_values
+  let invalidate_session = Session.invalidate_session
+  let memory_sessions = Session.memory_sessions
+  let cookie_sessions = Session.cookie_sessions
+  let session_id = Session.session_id
+  let session_label = Session.session_label
+  let session_expires_at = Session.session_expires_at
+
+
+
+  (* Flash messages *)
+
+  let flash_messages = Flash.flash_messages
+  let flash = Flash.flash
+  let put_flash = Flash.put_flash
+
 
 
   let log =
     Log.convenience_log
 
-  include Dream__server.Tag
 
   let now () = Ptime.to_float_s (Ptime.v (Pclock.now_d_ps ()))
 
@@ -198,10 +316,59 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let multipart = multipart ~now
   let csrf_token = csrf_token ~now
   let verify_csrf_token = verify_csrf_token ~now
-  let csrf_tag = csrf_tag ~now
-  let form_tag = form_tag ~now
+  let csrf_tag = Tag.csrf_tag ~now
+  
+  (* Templates *)
+
+  let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
+    Tag.form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
+
   
-  include Paf_mirage.Make (Time) (Stack)
+
+  (* Errors *)
+
+  type error = Catch.error = {
+    condition : [
+      | `Response of Message.response
+      | `String of string
+      | `Exn of exn
+    ];
+    layer : [
+      | `App
+      | `HTTP
+      | `HTTP2
+      | `TLS
+      | `WebSocket
+    ];
+    caused_by : [
+      | `Server
+      | `Client
+    ];
+    request : Message.request option;
+    response : Message.response option;
+    client : string option;
+    severity : Log.log_level;
+    will_send_response : bool;
+  }
+  type error_handler = Catch.error_handler
+  let error_template = Error_handler.customize
+  let catch = Catch.catch
+
+  (* Cryptography *)
+
+  let set_secret = Cipher.set_secret
+  let random = Random.random
+  let encrypt = Cipher.encrypt
+  let decrypt = Cipher.decrypt
+
+  (* Custom fields *)
+
+  type 'a field = 'a Message.field
+  let new_field = Message.new_field
+  let field = Message.field
+  let set_field = Message.set_field
+
+  open Paf_mirage.Make (Time) (Stack)
 
   let alpn =
     let module R = (val Mimic.repr tls_protocol) in
@@ -272,59 +439,69 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
 
 
 
-let validate_path request =
-  let path = Dream__server.Router.path request in
-
-  let has_slash component = String.contains component '/' in
-  let has_backslash component = String.contains component '\\' in
-  let has_slash = List.exists has_slash path in
-  let has_backslash = List.exists has_backslash path in
-  let has_dot = List.exists ((=) Filename.current_dir_name) path in
-  let has_dotdot = List.exists ((=) Filename.parent_dir_name) path in
-  let has_empty = List.exists ((=) "") path in
-  let is_empty = path = [] in
+  let validate_path request =
+    let path = Dream__server.Router.path request in
 
-  if has_slash ||
-     has_backslash ||
-     has_dot ||
-     has_dotdot ||
-     has_empty ||
-     is_empty then
-    None
+    let has_slash component = String.contains component '/' in
+    let has_backslash component = String.contains component '\\' in
+    let has_slash = List.exists has_slash path in
+    let has_backslash = List.exists has_backslash path in
+    let has_dot = List.exists ((=) Filename.current_dir_name) path in
+    let has_dotdot = List.exists ((=) Filename.parent_dir_name) path in
+    let has_empty = List.exists ((=) "") path in
+    let is_empty = path = [] in
 
-  else
-    let path = String.concat Filename.dir_sep path in
-    if Filename.is_relative path then
-      Some path
-    else
+    if has_slash ||
+      has_backslash ||
+      has_dot ||
+      has_dotdot ||
+      has_empty ||
+      is_empty then
       None
 
-let static ~loader local_root = fun request ->
-
-  if not @@ Method.methods_equal (Message.method_ request) `GET then
-    Message.response ~status:`Not_Found Stream.empty Stream.null
-    |> Lwt.return
+    else
+      let path = String.concat Filename.dir_sep path in
+      if Filename.is_relative path then
+        Some path
+      else
+        None
+
+  (* Static files *)
+
+  let mime_lookup filename =
+    let content_type =
+      match Magic_mime.lookup filename with
+      | "text/html" -> Formats.text_html
+      | content_type -> content_type
+    in
+    ["Content-Type", content_type]
+  
+  let static ~loader local_root = fun request ->
 
-  else
-    match validate_path request with
-    | None ->
+    if not @@ Method.methods_equal (Message.method_ request) `GET then
       Message.response ~status:`Not_Found Stream.empty Stream.null
       |> Lwt.return
 
-    | Some path ->
-      let%lwt response = loader local_root path request in
-      if not (Message.has_header response "Content-Type") then begin
-        match Message.status response with
-        | `OK
-        | `Non_Authoritative_Information
-        | `No_Content
-        | `Reset_Content
-        | `Partial_Content ->
-          Message.add_header response "Content-Type" (Magic_mime.lookup path)
-        | _ ->
-          ()
-      end;
-      Lwt.return response
+    else
+      match validate_path request with
+      | None ->
+        Message.response ~status:`Not_Found Stream.empty Stream.null
+        |> Lwt.return
+
+      | Some path ->
+        let%lwt response = loader local_root path request in
+        if not (Message.has_header response "Content-Type") then begin
+          match Message.status response with
+          | `OK
+          | `Non_Authoritative_Information
+          | `No_Content
+          | `Reset_Content
+          | `Partial_Content ->
+            Message.add_header response "Content-Type" (Magic_mime.lookup path)
+          | _ ->
+            ()
+        end;
+        Lwt.return response
 
 end
 
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index 715456d9..eafc29e8 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -13,11 +13,145 @@ module Make
   (Pclock : Mirage_clock.PCLOCK)
   (Time : Mirage_time.S)
   (Stack : Tcpip.Stack.V4V6) : sig
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
 
-  type route
+   Copyright 2021 Anton Bachin *)
 
-  type method_ =
-    [ `GET
+
+
+  (** {1 Types}
+  Dream is built on just five types. The first two are the data types of
+  Dream. Both are abstract, even though they appear to have definitions: *)
+
+  type request = client message
+  (** HTTP requests, such as [GET /something HTTP/1.1]. See
+      {!section-requests}. *)
+  
+  and response = server message
+  (** HTTP responses, such as [200 OK]. See {!section-responses}. *)
+  
+  (** The remaining three types are for building up Web apps. *)
+  
+  and handler = request -> response promise
+  (** Handlers are asynchronous functions from requests to responses. Example
+      {{:https://github.com/aantron/dream/tree/master/example/1-hello#files}
+      [1-hello]} \[{{:http://dream.as/1-hello} playground}\] shows the simplest
+      handler, an anonymous function which we pass to {!Dream.run}. This creates a
+      complete Web server! You can also see the Reason version in example
+      {{:https://github.com/aantron/dream/tree/master/example/r-hello#files}
+      [r-hello]}.
+  
+      {[
+        let () =
+          Dream.run (fun _ ->
+            Dream.html "Good morning, world!")
+      ]} *)
+  
+  and middleware = handler -> handler
+  (** Middlewares are functions that take a {!handler}, and run some code before
+      or after — producing a “bigger” handler. Example
+      {{:https://github.com/aantron/dream/tree/master/example/2-middleware#files}
+      [2-middleware]} inserts the {!Dream.logger} middleware into a Web app:
+  
+      {[
+        let () =
+          Dream.run
+          @@ Dream.logger
+          @@ fun _ -> Dream.html "Good morning, world!"
+      ]}
+  
+      Examples
+      {{:https://github.com/aantron/dream/tree/master/example/4-counter#files}
+      [4-counter]} \[{{:http://dream.as/4-counter} playground}\] and
+      {{:https://github.com/aantron/dream/tree/master/example/5-promise#files}
+      [5-promise]} show user-defined middlewares:
+  
+      {[
+        let count_requests inner_handler request =
+          count := !count + 1;
+          inner_handler request
+      ]}
+  
+      In case you are wondering why the example middleware [count_requests] takes
+      two arguments, while the type says it should take only one, it's because:
+  
+      {[
+        middleware
+          = handler -> handler
+          = handler -> (request -> response promise)
+          = handler -> request -> response promise
+      ]} *)
+  
+  and route
+  (** Routes tell {!Dream.router} which handler to select for each request. See
+      {!section-routing} and example
+      {{:https://github.com/aantron/dream/tree/master/example/3-router#files}
+      [3-router]} \[{{:http://dream.as/3-router/echo/foo} playground}\]. Routes
+      are created by helpers such as {!Dream.get} and {!Dream.scope}:
+  
+      {[
+        Dream.router [
+          Dream.scope "/admin" [Dream.memory_sessions] [
+            Dream.get "/" admin_handler;
+            Dream.get "/logout" admin_logout_handler;
+          ];
+        ]
+      ]} *)
+  
+  (** {2 Algebra}
+  
+      The three handler-related types have a vaguely algebraic interpretation:
+  
+      - Each literal {!handler} is an atom.
+      - {!type-middleware} is for sequential composition (product-like).
+        {!Dream.no_middleware} is {b 1}.
+      - {!type-route} is for alternative composition (sum-like). {!Dream.no_route}
+        is {b 0}.
+  
+      {!Dream.scope} implements a left distributive law, making Dream a ring-like
+      structure. *)
+  
+  (** {2 Helpers} *)
+  
+  and 'a message = 'a Dream_pure.Message.message
+  (** ['a message], pronounced “any message,” allows some functions to take either
+      {!type-request} or {!type-response} as arguments, because both are defined
+      in terms of ['a message]. For example, in {!section-headers}:
+  
+      {[
+        val Dream.header : string -> 'a message -> string option
+      ]} *)
+  
+  and client = Dream_pure.Message.client
+  and server = Dream_pure.Message.server
+  (** Type parameters for {!message} for {!type-request} and {!type-response},
+      respectively. These are “phantom” types. They have no meaning other than
+      they are different from each other. Dream only ever creates [client message]
+      and [server message]. [client] and [server] are never mentioned again in the
+      docs. *)
+  (* TODO These docs need to be clarified. *)
+  (* TODO Hide all the Dream_pure type equalities. *)
+  
+  and 'a promise = 'a Lwt.t
+  (** Dream uses {{:https://github.com/ocsigen/lwt} Lwt} for promises and
+      asynchronous I/O. See example
+      {{:https://github.com/aantron/dream/tree/master/example/5-promise#files}
+      [5-promise]} \[{{:http://dream.as/5-promise} playground}\].
+  
+      Use [raise] to reject promises. If you are writing a library, you may prefer
+      using
+      {{:https://github.com/ocsigen/lwt/blob/9943ba77a5508feaea5e1fb60b011db4179f9c61/src/core/lwt.mli#L459}
+      [Lwt.fail]} in some places, in order to avoid clobbering your user's current
+      exception backtrace — though, in most cases, you should still extend it with
+      [raise] and [let%lwt], instead. *)
+  
+  
+  
+  (** {1 Methods} *)
+  
+  type method_ = [
+    | `GET
     | `POST
     | `PUT
     | `DELETE
@@ -26,32 +160,85 @@ module Make
     | `OPTIONS
     | `TRACE
     | `PATCH
-    | `Method of string ]
-
-  type informational =
-    [ `Continue
-    | `Switching_Protocols ]
+    | `Method of string
+  ]
+  (** HTTP request methods. See
+      {{:https://tools.ietf.org/html/rfc7231#section-4.3} RFC 7231 §4.2},
+      {{:https://tools.ietf.org/html/rfc5789#page-2} RFC 5789 §2}, and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods} MDN}. *)
+  
+  val method_to_string : [< method_ ] -> string
+  (** Evaluates to a string representation of the given method. For example,
+      [`GET] is converted to ["GET"]. *)
+  
+  val string_to_method : string -> method_
+  (** Evaluates to the {!type-method_} corresponding to the given method
+      string. *)
+  
+  val methods_equal : [< method_ ] -> [< method_ ] -> bool
+  (** Compares two methods, such that equal methods are detected even if one is
+      represented as a string. For example,
+  
+      {[
+        Dream.methods_equal `GET (`Method "GET") = true
+      ]} *)
+  
+  val normalize_method : [< method_ ] -> method_
+  (** Converts methods represented as strings to variants. Methods generated by
+      Dream are always normalized.
+  
+      {[
+        Dream.normalize_method (`Method "GET") = `GET
+      ]} *)
+  
+  
   
-  type successful =
-    [ `OK
+  (** {1:status_codes Status codes} *)
+  
+  type informational = [
+    | `Continue
+    | `Switching_Protocols
+  ]
+  (** Informational ([1xx]) status codes. See
+      {{:https://tools.ietf.org/html/rfc7231#section-6.2} RFC 7231 §6.2} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status#information_responses}
+      MDN}. [101 Switching Protocols] is generated internally by
+      {!Dream.val-websocket}. It is usually not necessary to use it directly. *)
+  
+  type successful = [
+    | `OK
     | `Created
     | `Accepted
     | `Non_Authoritative_Information
     | `No_Content
     | `Reset_Content
-    | `Partial_Content ]
+    | `Partial_Content
+  ]
+  (** Successful ([2xx]) status codes. See
+      {{:https://tools.ietf.org/html/rfc7231#section-6.3} RFC 7231 §6.3},
+      {{:https://tools.ietf.org/html/rfc7233#section-4.1} RFC 7233 §4.1} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status#successful_responses}
+      MDN}. The most common is [200 OK]. *)
   
-  type redirection =
-    [ `Multiple_Choices
+  type redirection = [
+    | `Multiple_Choices
     | `Moved_Permanently
     | `Found
     | `See_Other
     | `Not_Modified
     | `Temporary_Redirect
-    | `Permanent_Redirect ]
+    | `Permanent_Redirect
+  ]
+  (** Redirection ([3xx]) status codes. See
+      {{:https://tools.ietf.org/html/rfc7231#section-6.4} RFC 7231 §6.4} and
+      {{:https://tools.ietf.org/html/rfc7538#section-3} RFC 7538 §3}, and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status#redirection_messages}
+      MDN}. Use [303 See Other] to direct clients to follow up with a [GET]
+      request, especially after a form submission. Use [301 Moved Permanently]
+      for permanent redirections. *)
   
-  type client_error =
-    [ `Bad_Request
+  type client_error = [
+    | `Bad_Request
     | `Unauthorized
     | `Payment_Required
     | `Forbidden
@@ -75,49 +262,150 @@ module Make
     | `Precondition_Required
     | `Too_Many_Requests
     | `Request_Header_Fields_Too_Large
-    | `Unavailable_For_Legal_Reasons ]
+    | `Unavailable_For_Legal_Reasons
+  ]
+  (** Client error ([4xx]) status codes. The most common are [400 Bad Request],
+      [401 Unauthorized], [403 Forbidden], and, of course, [404 Not Found].
+  
+      See
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status#client_error_responses}
+      MDN}, and
+  
+      - {{:https://tools.ietf.org/html/rfc7231#section-6.5} RFC 7231 §6.5} for
+        most client error status codes.
+      - {{:https://tools.ietf.org/html/rfc7233#section-4.4} RFC 7233 §4.4} for
+        [416 Range Not Satisfiable].
+      - {{:https://tools.ietf.org/html/rfc7540#section-9.1.2} RFC 7540 §9.1.2} for
+        [421 Misdirected Request].
+      - {{:https://tools.ietf.org/html/rfc8470#section-5.2} RFC 8470 §5.2} for
+        [425 Too Early].
+      - {{:https://tools.ietf.org/html/rfc6585} RFC 6585} for
+        [428 Precondition Required], [429 Too Many Requests], and [431 Request
+        Headers Too Large].
+      - {{:https://tools.ietf.org/html/rfc7725} RFC 7725} for
+        [451 Unavailable For Legal Reasons]. *)
   
-  type server_error =
-    [ `Internal_Server_Error
+  type server_error = [
+    | `Internal_Server_Error
     | `Not_Implemented
     | `Bad_Gateway
     | `Service_Unavailable
     | `Gateway_Timeout
-    | `HTTP_Version_Not_Supported ]
+    | `HTTP_Version_Not_Supported
+  ]
+  (** Server error ([5xx]) status codes. See
+      {{:https://tools.ietf.org/html/rfc7231#section-6.6} RFC 7231 §6.6} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status#server_error_responses}
+      MDN}. The most common of these is [500 Internal Server Error]. *)
   
-  type standard_status =
-    [ informational
+  type standard_status = [
+    | informational
     | successful
     | redirection
     | client_error
-    | server_error ]
-
-  type status =
-    [ standard_status
-    | `Status of int ]
-
-  val random : int -> string
-
-  val log : ('a, Format.formatter, unit, unit) format4 -> 'a
-
-  type ('a, 'b) conditional_log =
-    ((?request:request ->
-     ('a, Format.formatter, unit, 'b) format4 -> 'a) -> 'b) ->
-      unit
-
-  type log_level = [ `Error | `Warning | `Info | `Debug ]
-
-  val error     : ('a, unit) conditional_log
-  val warning   : ('a, unit) conditional_log
-  val info      : ('a, unit) conditional_log
-  (* val debug     : ('a, unit) conditional_log *)
-
-  val param : request -> string ->  string
-
-  type 'a promise = 'a Lwt.t
-
+    | server_error
+  ]
+  (** Sum of all the status codes declared above. *)
+  
+  type status = [
+    | standard_status
+    | `Status of int
+  ]
+  (** Status codes, including codes directly represented as integers. See the
+      types above for the full list and references. *)
+  
+  val status_to_string : [< status ] -> string
+  (** Evaluates to a string representation of the given status. For example,
+      [`Not_Found] and [`Status 404] are both converted to ["Not Found"]. Numbers
+      are used for unknown status codes. For example, [`Status 567] is converted
+      to ["567"]. *)
+  
+  val status_to_reason : [< status ] -> string option
+  (** Converts known status codes to their string representations. Evaluates to
+      [None] for unknown status codes. *)
+  
+  val status_to_int : [< status ] -> int
+  (** Evaluates to the numeric value of the given status code. *)
+  
+  val int_to_status : int -> status
+  (** Evaluates to the symbolic representation of the status code with the given
+      number. *)
+  
+  val is_informational : [< status ] -> bool
+  (** Evaluates to [true] if the given status is either from type
+      {!Dream.informational}, or is in the range [`Status 100] — [`Status 199]. *)
+  
+  val is_successful : [< status ] -> bool
+  (** Like {!Dream.is_informational}, but for type {!Dream.successful} and numeric
+      codes [2xx]. *)
+  
+  val is_redirection : [< status ] -> bool
+  (** Like {!Dream.is_informational}, but for type {!Dream.redirection} and
+      numeric codes [3xx]. *)
+  
+  val is_client_error : [< status ] -> bool
+  (** Like {!Dream.is_informational}, but for type {!Dream.client_error} and
+      numeric codes [4xx]. *)
+  
+  val is_server_error : [< status ] -> bool
+  (** Like {!Dream.is_informational}, but for type {!Dream.server_error} and
+      numeric codes [5xx]. *)
+  
+  val status_codes_equal : [< status ] -> [< status ] -> bool
+  (** Compares two status codes, such that equal codes are detected even if one is
+      represented as a number. For example,
+  
+      {[
+        Dream.status_codes_equal `Not_Found (`Status 404) = true
+      ]} *)
+  
+  val normalize_status : [< status ] -> status
+  (** Converts status codes represented as numbers to variants. Status codes
+      generated by Dream are always normalized.
+  
+      {[
+        Dream.normalize_status (`Status 404) = `Not_Found
+      ]} *)
+  
+  
+  
+  (** {1 Requests} *)
+  
+  val client : request -> string
+  (** Client sending the request. For example, ["127.0.0.1:56001"]. *)
+  
+  val https : request -> bool
+  (** Whether the request was sent over HTTPS. *)
+  
+  val method_ : request -> method_
+  (** Request method. For example, [`GET]. *)
+  
+  val target : request -> string
+  (** Request target. For example, ["/foo/bar"]. *)
+  
+  (**/**)
+  val prefix : request -> string
+  (**/**)
+  
+  (* TODO Convert query string functions to the new t-first style. *)
+  
+  val query : string -> request -> string option
+  (** First query parameter with the given name. See
+      {{:https://tools.ietf.org/html/rfc3986#section-3.4} RFC 3986 §3.4} and
+      example
+      {{:https://github.com/aantron/dream/tree/master/example/w-query#files}
+      [w-query]}. *)
+  
+  val queries : string -> request -> string list
+  (** All query parameters with the given name. *)
+  
+  val all_queries : request -> (string * string) list
+  (** Entire query string as a name-value list. *)
+  
+  
+  
   (** {1 Responses} *)
-
+  
   val response :
     ?status:[< status ] ->
     ?code:int ->
@@ -126,14 +414,14 @@ module Make
   (** Creates a new {!type-response} with the given string as body. [~code] and
       [~status] are two ways to specify the {!type-status} code, which is [200 OK]
       by default. The headers are empty by default.
-
+  
       Note that browsers may interpret lack of a [Content-Type:] header as if its
       value were [application/octet-stream] or [text/html; charset=us-ascii],
       which will prevent correct interpretation of UTF-8 strings. Either add a
       [Content-Type:] header using [~headers] or {!Dream.add_header}, or use a
       wrapper like {!Dream.html}. The modern [Content-Type:] for HTML is
       [text/html; charset=utf-8]. See {!Dream.text_html}. *)
-
+  
   val respond :
     ?status:[< status ] ->
     ?code:int ->
@@ -141,7 +429,7 @@ module Make
       string -> response promise
   (** Same as {!Dream.val-response}, but the new {!type-response} is wrapped in a
       {!type-promise}. *)
-
+  
   val html :
     ?status:[< status ] ->
     ?code:int ->
@@ -149,13 +437,13 @@ module Make
       string -> response promise
   (** Same as {!Dream.respond}, but adds [Content-Type: text/html; charset=utf-8].
       See {!Dream.text_html}.
-
+  
       As your Web app develops, consider adding [Content-Security-Policy] headers,
       as described in example
       {{:https://github.com/aantron/dream/tree/master/example/w-content-security-policy#files}
       [w-content-security-policy]}. These headers are completely optional, but
       they can provide an extra layer of defense for a mature app. *)
-
+  
   val json :
     ?status:[< status ] ->
     ?code:int ->
@@ -163,7 +451,7 @@ module Make
       string -> response promise
   (** Same as {!Dream.respond}, but adds [Content-Type: application/json]. See
       {!Dream.application_json}. *)
-
+  
   val redirect :
     ?status:[< redirection ] ->
     ?code:int ->
@@ -173,18 +461,18 @@ module Make
       string. The default status code is [303 See Other], for a temporary
       redirection. Use [~status:`Moved_Permanently] or [~code:301] for a permanent
       redirection.
-
+  
       If you use [~code], be sure the number follows the pattern [3xx], or most
       browsers and other clients won't actually perform a redirect.
-
+  
       The {!type-request} is used for retrieving the site prefix, if the string is
       an absolute path. Most applications don't have a site prefix. *)
-
+  
   val empty :
     ?headers:(string * string) list ->
       status -> response promise
   (** Same as {!Dream.val-response} with the empty string for a body. *)
-
+  
   val stream :
     ?status:[< status ] ->
     ?code:int ->
@@ -195,14 +483,14 @@ module Make
       asynchronously to do it. See example
       {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
       [j-stream]}.
-
+  
       {[
         fun request ->
           Dream.stream (fun response ->
             let%lwt () = Dream.write response "foo" in
             Dream.close_stream response)
       ]} *)
-
+  
   val websocket :
     ?headers:(string * string) list ->
       (response -> unit promise) -> response promise
@@ -211,109 +499,1540 @@ module Make
       {!type-websocket}, and the application can begin using it. See example
       {{:https://github.com/aantron/dream/tree/master/example/k-websocket#files}
       [k-websocket]} \[{{:http://dream.as/k-websocket} playground}\].
-
+  
       {[
         let my_handler = fun request ->
           Dream.websocket (fun websocket ->
             let%lwt () = Dream.send websocket "Hello, world!" in
             Dream.close_websocket websocket);
       ]} *)
-
+  
   val status : response -> status
   (** Response {!type-status}. For example, [`OK]. *)
-
-(** Same as {!Dream.val-response} with the empty string for a body. *)
-
-val static :
-  loader:(string -> string -> handler) ->
-    string -> handler
-(** Serves static files from a local directory. See example
-    {{:https://github.com/aantron/dream/tree/master/example/f-static#files}
-    [f-static]}.
-
-    {[
-      let () =
-        Dream.run
-        @@ Dream.router {
-          Dream.get "/static/**" @@ Dream.static "www/static";
-        }
-        @@ Dream.not_found
-    ]}
-*)
-val respond :
-  ?status:[< status ] ->
-  ?code:int ->
-  ?headers:(string * string) list ->
-    string -> response Lwt.t
-(** Same as {!Dream.val-response}, but the new {!type-response} is wrapped in a
-    {!type-promise}. *)
-  type csrf_result =
-    [ `Ok
-    | `Expired of float
-    | `Wrong_session
-    | `Invalid ]
-
-  val csrf_token : ?valid_for:float -> request -> string
-  val verify_csrf_token : request -> string -> csrf_result Lwt.t
-
-  type 'a form_result =
-    [ `Ok            of 'a
+  
+  
+  
+  (** {1 Headers} *)
+  
+  val header : 'a message -> string -> string option
+  (** First header with the given name. Header names are case-insensitive. See
+      {{:https://tools.ietf.org/html/rfc7230#section-3.2} RFC 7230 §3.2} and
+      {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers} MDN}. *)
+  
+  val headers : 'a message -> string -> string list
+  (** All headers with the given name. *)
+  
+  val all_headers : 'a message -> (string * string) list
+  (** Entire header set as name-value list. *)
+  
+  val has_header : 'a message -> string -> bool
+  (** Whether the message has a header with the given name. *)
+  
+  val add_header : 'a message -> string -> string -> unit
+  (** Appends a header with the given name and value. Does not remove any existing
+      headers with the same name. *)
+  
+  val drop_header : 'a message -> string -> unit
+  (** Removes all headers with the given name. *)
+  
+  val set_header : 'a message -> string -> string -> unit
+  (** Equivalent to {!Dream.drop_header} followed by {!Dream.add_header}. *)
+  
+  
+  
+  (** {1 Cookies}
+  
+      {!Dream.set_cookie} and {!Dream.cookie} are designed for round-tripping
+      secure cookies. The most secure settings applicable to the current server
+      are inferred automatically. See example
+      {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
+      [c-cookie]} \[{{:http://dream.as/c-cookie} playground}\].
+  
+      {[
+        Dream.set_cookie "my.cookie" "foo" request response
+        Dream.cookie "my.cookie" request
+      ]}
+  
+      The {!Dream.cookie} call evaluates to [Some "foo"], but the actual cookie
+      that is exchanged may look like:
+  
+      {v
+  __Host-my.cookie=AL7NLA8-so3e47uy0R5E2MpEQ0TtTWztdhq5pTEUT7KSFg; \
+    Path=/; Secure; HttpOnly; SameSite=Strict
+      v}
+  
+      {!Dream.set_cookie} has a large number of optional arguments for tweaking
+      the inferred security settings. If you use them, pass the same arguments to
+      {!Dream.cookie} to automatically undo the result. *)
+  
+  val set_cookie :
+    ?prefix:[< `Host | `Secure ] option ->
+    ?encrypt:bool ->
+    ?expires:float ->
+    ?max_age:float ->
+    ?domain:string ->
+    ?path:string option ->
+    ?secure:bool ->
+    ?http_only:bool ->
+    ?same_site:[< `Strict | `Lax | `None ] option ->
+      response -> string -> string -> request -> unit
+  (** Appends a [Set-Cookie:] header to the {!type-response}. Infers the most
+      secure defaults from the {!type-request}.
+  
+      {[
+        Dream.set_cookie "my.cookie" "value" request response
+      ]}
+  
+      Specify {!Dream.run} argument [~secret], or the Web app will not be able to
+      decrypt cookies from prior starts.
+  
+      See example
+      {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
+      [c-cookie]}.
+  
+      Most of the optional arguments are for overriding inferred defaults.
+      [~expires] and [~max_age] are independently useful. In particular, to delete
+      a cookie, use [~expires:0.]
+  
+      - [~prefix] sets [__Host-], [__Secure-], or no prefix, from most secure to
+        least. A conforming client will refuse to accept the cookie if [~domain],
+        [~path], and [~secure] don't match the constraints implied by the prefix.
+        By default, {!Dream.set_cookie} chooses the most restrictive prefix based
+        on the other settings and the {!type-request}. See
+        {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.3}
+        RFC 6265bis §4.1.3} and
+        {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Cookie_prefixes}
+        MDN}.
+      - [~encrypt:false] disables cookie encryption. In that case, you must make
+        sure that the cookie value does not contain [=], [;], or newlines. The
+        easiest way to do so is to pass the value through an encoder like
+        {!Dream.to_base64url}. See {!Dream.run} argument [~secret].
+      - [~expires] sets the [Expires=] attribute. The value is compatible with
+        {{:https://caml.inria.fr/pub/docs/manual-ocaml/libref/Unix.html#VALgettimeofday}
+        [Unix.gettimeofday]}. See
+        {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.1}
+        RFC 6265bis §4.1.2.1} and
+        {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#define_the_lifetime_of_a_cookie}
+        MDN}.
+      - [~max_age] sets the [Max-Age=] attribute. See
+        {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.2}
+        RFC 6265bis §4.1.2.2} and
+        {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#define_the_lifetime_of_a_cookie}
+        MDN}.
+      - [~domain] sets the [Domain=] attribute. See
+        {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.3}
+        RFC 6265bis §4.1.2.3} and
+        {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Domain_attribute}
+        MDN}.
+      - [~path] sets the [Path=] attribute. By default, [Path=] set to the site
+        prefix in the {!type-request}, which is usually [/]. See
+        {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.4}
+        RFC 6265bis §4.1.2.4} and
+        {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Path_attribute}
+        MDN}.
+      - [~secure] sets the [Secure] attribute. By default, [Secure] is set if
+        {!Dream.https} is [true] for the {!type-request}. See
+        {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.5}
+        RFC 6265bis §4.1.2.5} and
+        {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#restrict_access_to_cookies}
+        MDN}.
+      - [~http_only] sets the [HttpOnly] attribute. [HttpOnly] is set by default.
+        See
+        {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.6}
+        RFC 6265bis §4.1.2.6} and
+        {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#restrict_access_to_cookies}
+        MDN}.
+      - [~same_site] sets the [SameSite=] attribute. [SameSite] is set to [Strict]
+        by default. See
+        {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.7}
+        RFC 6265bis §4.1.2.7} and
+        {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#SameSite_attribute}
+        MDN}.
+  
+      {!Dream.to_set_cookie} is a “raw” version of this function that does not do
+      any inference. *)
+  
+    val drop_cookie :
+      ?prefix:[< `Host | `Secure ] option ->
+      ?domain:string ->
+      ?path:string option ->
+      ?secure:bool ->
+      ?http_only:bool ->
+      ?same_site:[< `Strict | `Lax | `None ] option ->
+        response -> string -> request -> unit
+  (** Deletes the given cookie.
+  
+      This function works by calling {!Dream.set_cookie}, and setting the cookie
+      to expire in the past. Pass all the same optional values that you would pass
+      to {!Dream.set_cookie}, to make sure that the same cookie is deleted. *)
+  
+  val cookie :
+    ?prefix:[< `Host | `Secure ] option ->
+    ?decrypt:bool ->
+    ?domain:string ->
+    ?path:string option ->
+    ?secure:bool ->
+      request -> string -> string option
+  (** First cookie with the given name. See example
+      {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
+      [c-cookie]}.
+  
+      {[
+        Dream.cookie "my.cookie" request
+      ]}
+  
+      Pass the same optional arguments as to {!Dream.set_cookie} for the same
+      cookie. This will allow {!Dream.cookie} to infer the cookie name prefix,
+      implementing a transparent cookie round trip with the most secure attributes
+      applicable. *)
+  
+  val all_cookies : request -> (string * string) list
+  (** All cookies, with raw names and values. *)
+  
+  
+  
+  (** {1 Bodies} *)
+  
+  val body : 'a message -> string promise
+  (** Retrieves the entire body. See example
+      {{:https://github.com/aantron/dream/tree/master/example/6-echo#files}
+      [6-echo]}. *)
+  
+  val set_body : 'a message -> string -> unit
+  (** Replaces the body. *)
+  
+  (** {2 Streaming} *)
+  
+  val read : 'a message -> string option promise
+  (** Retrieves a body chunk. The chunk is not buffered, thus it can only be read
+      once. See example
+      {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
+      [j-stream]}. *)
+  (* TODO Document difference between receiving a request and receiving on a
+      WebSocket. *)
+  
+  
+  val write : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
+  (** Streams out the string. The promise is fulfilled when the response can
+      accept more writes. *)
+  (* TODO Document clearly which of the writing functions can raise exceptions. *)
+  
+  val flush : response -> unit promise
+  (** Flushes write buffers. Data is sent to the client. *)
+  
+  val close : ?code:int -> 'a message -> unit promise
+  (** Finishes the response stream. *)
+  (* TODO Fix comment. *)
+  
+  (** {2 Low-level streaming} *)
+  
+  type buffer =
+    (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+  (** Byte arrays in the C heap. See
+      {{:http://caml.inria.fr/pub/docs/manual-ocaml/libref/Bigarray.Array1.html}
+      [Bigarray.Array1]}. This type is also found in several libraries installed
+      by Dream, so their functions can be used with {!Dream.buffer}:
+  
+      - {{:https://github.com/inhabitedtype/bigstringaf/blob/353cb283aef4c261597f68154eb27a138e7ef112/lib/bigstringaf.mli}
+        [Bigstringaf.t]} in bigstringaf.
+      - {{:https://ocsigen.org/lwt/latest/api/Lwt_bytes} [Lwt_bytes.t]} in Lwt.
+      - {{:https://github.com/mirage/ocaml-cstruct/blob/9a8b9a79bdfa2a1b8455bc26689e0228cc6fac8e/lib/cstruct.mli#L139}
+        [Cstruct.buffer]} in Cstruct. *)
+  
+  (* TODO What should the body stream retrieval function be called? *)
+  (* TODO Remove old functions from signature. *)
+  (* TODO Should there be a section for this somewhere? Probably "low-level
+      streaming" should be promoted to a top-level section, Streaming. *)
+  type stream
+  
+  val client_stream : 'a message -> stream
+  val server_stream : 'a message -> stream
+  (* TODO Document that this is for middlewares that are transforming a response
+      stream or a WebSocket. *)
+  val set_client_stream : 'a message -> stream -> unit
+  (* TODO Normalize with with_stream, or add a separate with_server_stream. *)
+  val set_server_stream : 'a message -> stream -> unit
+  
+  (* TODO Probably even close can be made optional. exn can be made optional. *)
+  (* TODO Argument order? *)
+  val read_stream :
+    stream ->
+    data:(buffer -> int -> int -> bool -> bool -> unit) ->
+    flush:(unit -> unit) ->
+    ping:(buffer -> int -> int -> unit) ->
+    pong:(buffer -> int -> int -> unit) ->
+    close:(int -> unit) ->
+    exn:(exn -> unit) ->
+      unit
+  (** Waits for the next stream event, and calls:
+  
+      - [~buffer] with an offset and length, if a {!type-buffer} is written,
+      - [~close] if close is requested, and
+      - [~exn] to report an exception. *)
+  
+  val write_stream :
+    stream -> buffer -> int -> int -> bool -> bool -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
+  
+  val flush_stream :
+    stream -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
+  
+  val ping_stream :
+    stream -> buffer -> int -> int -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
+  
+  val pong_stream :
+    stream -> buffer -> int -> int -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
+  
+  val close_stream :
+    stream -> int -> unit
+  
+  val abort_stream :
+    stream -> exn -> unit
+  (* TODO Line widths above. *)
+  
+  (* TODO Ergonomics of this stream surface API. *)
+  
+  
+  
+  (** {1 JSON}
+  
+      Dream presently recommends using
+      {{:https://github.com/ocaml-community/yojson#readme} Yojson}. See also
+      {{:https://github.com/janestreet/ppx_yojson_conv#readme} ppx_yojson_conv}
+      for generating JSON parsers and serializers for OCaml data types.
+  
+      See example
+      {{:https://github.com/aantron/dream/tree/master/example/e-json#files}
+      [e-json]}. *)
+  
+  val origin_referrer_check : middleware
+  (** CSRF protection for AJAX requests. Either the method must be [`GET] or
+      [`HEAD], or:
+  
+      - [Origin:] or [Referer:] must be present, and
+      - their value must match [Host:]
+  
+      Responds with [400 Bad Request] if the check fails. See example
+      {{:https://github.com/aantron/dream/tree/master/example/e-json#security}
+      [e-json]}.
+  
+      Implements the
+      {{:https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html#verifying-origin-with-standard-headers}
+      OWASP {i Verifying Origin With Standard Headers}} CSRF defense-in-depth
+      technique, which is good enough for basic usage. Do not allow [`GET] or
+      [`HEAD] requests to trigger important side effects if relying only on
+      {!Dream.origin_referrer_check}.
+  
+      Future extensions to this function may use [X-Forwarded-Host] or host
+      whitelists.
+  
+      For more thorough protection, generate CSRF tokens with {!Dream.csrf_token},
+      send them to the client (for instance, in [<meta>] tags of a single-page
+      application), and require their presence in an [X-CSRF-Token:] header. *)
+  
+  
+  
+  (** {1 Forms}
+  
+      {!Dream.form_tag} and {!Dream.val-form} round-trip secure forms.
+      {!Dream.form_tag} is used inside a template to generate a form header with a
+      CSRF token:
+  
+      {[
+        <%s! Dream.form_tag ~action:"/" request %>
+          <input name="my.field">
+        </form>
+      ]}
+  
+      {!Dream.val-form} recieves the form and checks the CSRF token:
+  
+      {[
+        match%lwt Dream.form request with
+        | `Ok ["my.field", value] -> (* ... *)
+        | _ -> Dream.empty `Bad_Request
+      ]}
+  
+      See example
+      {{:https://github.com/aantron/dream/tree/master/example/d-form#files}
+      [d-form]} \[{{:http://dream.as/d-form} playground}\]. *)
+  
+  type 'a form_result = [
+    | `Ok            of 'a
     | `Expired       of 'a * float
     | `Wrong_session of 'a
     | `Invalid_token of 'a
     | `Missing_token of 'a
     | `Many_tokens   of 'a
-    | `Wrong_content_type ]
-
+    | `Wrong_content_type
+  ]
+  (** Form CSRF checking results, in order from least to most severe. See
+      {!Dream.val-form} and example
+      {{:https://github.com/aantron/dream/tree/master/example/d-form#files}
+      [d-form]}.
+  
+      The first three constructors, [`Ok], [`Expired], and [`Wrong_session] can
+      occur in regular usage.
+  
+      The remaining constructors, [`Invalid_token], [`Missing_token],
+      [`Many_tokens], [`Wrong_content_type] correspond to bugs, suspicious
+      activity, or tokens so old that decryption keys have since been rotated on
+      the server. *)
+  
+  val form : ?csrf:bool -> request -> (string * string) list form_result promise
+  (** Parses the request body as a form. Performs CSRF checks. Use
+      {!Dream.form_tag} in a template to transparently generate forms that will
+      pass these checks. See {!section-templates} and example
+      {{:https://github.com/aantron/dream/tree/master/example/d-form#readme}
+      [d-form]}.
+  
+      - [Content-Type:] must be [application/x-www-form-urlencoded].
+      - The form must have a field named [dream.csrf]. {!Dream.form_tag} adds such
+        a field.
+      - {!Dream.form} calls {!Dream.verify_csrf_token} to check the token in
+        [dream.csrf].
+  
+      The call must be done under a session middleware, since each CSRF token is
+      scoped to a session. See {!section-sessions}.
+  
+      Form fields are sorted for easy pattern matching:
+  
+      {[
+        match%lwt Dream.form request with
+        | `Ok ["email", email; "name", name] -> (* ... *)
+        | _ -> Dream.empty `Bad_Request
+      ]}
+  
+      To recover from conditions like expired forms, add extra cases:
+  
+      {[
+        match%lwt Dream.form request with
+        | `Ok      ["email", email; "name", name] -> (* ... *)
+        | `Expired ["email", email; "name", name] -> (* ... *)
+        | _ -> Dream.empty `Bad_Request
+      ]}
+  
+      It is recommended not to mutate state or send back sensitive data in the
+      [`Expired] and [`Wrong_session] cases, as they {e may} indicate an attack
+      against a client.
+  
+      The remaining cases, including unexpected field sets and the remaining
+      constructors of {!Dream.type-form_result}, usually indicate either bugs or
+      attacks. It's usually fine to respond to all of them with [400 Bad
+      Request]. *)
+  
+  (** {2 Upload} *)
+  
   type multipart_form =
     (string * ((string option * string) list)) list
+  (** Submitted file upload forms, [<form enctype="multipart/form-data">]. For
+      example, if a form
+  
+      {v
+  <input name="files" type="file" multiple>
+  <input name="text">
+      v}
+  
+      is submitted with two files and a text value, it will be received by
+      {!Dream.multipart} as
+  
+      {[
+        [
+          "files", [
+            Some "file1.ext", "file1-content";
+            Some "file2.ext", "file2-content";
+          ];
+          "text", [
+            None, "text-value"
+          ];
+        ]
+      ]}
+  
+      See example
+      {{:https://github.com/aantron/dream/tree/master/example/g-upload#files}
+      [g-upload]} \[{{:http://dream.as/g-upload} playground}\] and
+      {{:https://datatracker.ietf.org/doc/html/rfc7578} RFC 7578}.
+  
+      Note that clients such as curl can send files with no filename ([None]),
+      though most browsers seem to insert at least an empty filename ([Some ""]).
+      Don't use use the presence of a filename to determine if the field value is
+      a file. Use the field name and knowledge about the form instead.
+  
+      If a file field has zero files when submitted, browsers send
+      ["field-name", [Some ""; ""]]. {!Dream.multipart} replaces this with
+      ["field-name", []]. Use the advanced interface {!Dream.upload} for the raw
+      behavior.
+  
+      Non-file fields always have one value, which might be the empty string.
+  
+      See
+      {{:https://cheatsheetseries.owasp.org/cheatsheets/File_Upload_Cheat_Sheet.html}
+      OWASP {i File Upload Cheat Sheet}} for security precautions for upload
+      forms. *)
+  
+  val multipart : ?csrf:bool -> request -> multipart_form form_result promise
+  (** Like {!Dream.form}, but also reads files, and [Content-Type:] must be
+      [multipart/form-data]. The [<form>] tag and CSRF token can be generated in a
+      template with
+  
+      {[
+        <%s! Dream.form_tag ~action:"/"
+                ~enctype:`Multipart_form_data request %>
+      ]}
+  
+      See {!Dream.form_tag}, section {!section-templates}, and example
+      {{:https://github.com/aantron/dream/tree/master/example/g-upload#files}
+      [g-upload]}.
+  
+      Note that, like {!Dream.form}, this function sorts form fields by field
+      name.
+  
+      {!Dream.multipart} reads entire files into memory, so it is only suitable
+      for prototyping, or with yet-to-be-added file size and count limits. See
+      {!Dream.val-upload} below for a streaming version. *)
+  
+  (** {2 Streaming uploads} *)
+  
+  type part = string option * string option * ((string * string) list)
+  (** Upload form parts.
+  
+      A value [Some (name, filename, headers)] received by {!Dream.val-upload}
+      begins a {e part} in the stream. A part represents either a form field, or
+      a single, complete file.
+  
+      Note that, in the general case, [filename] and [headers] are not reliable.
+      [name] is the form field name. *)
+  
+  val upload : request -> part option promise
+  (** Retrieves the next upload part.
+  
+      Upon getting [Some (name, filename, headers)] from this function, the user
+      should call {!Dream.upload_part} to stream chunks of the part's data, until
+      that function returns [None]. The user should then call {!Dream.val-upload}
+      again. [None] from {!Dream.val-upload} indicates that all parts have been
+      received.
+  
+      {!Dream.upload} does not verify a CSRF token. There are several ways to add
+      CSRF protection for an upload stream, including:
+  
+      - Generate the form with {!Dream.form_tag}. Check for
+        [`Field ("dream.csrf", token)] during upload and call
+        {!Dream.verify_csrf_token}.
+      - Use {{:https://developer.mozilla.org/en-US/docs/Web/API/FormData}
+        [FormData]} in the client to submit [multipart/form-data] by AJAX, and
+        include a custom header. *)
+  
+  val upload_part : request -> string option promise
+  (** Retrieves a part chunk. *)
+  
+  (** {2 CSRF tokens}
+  
+      It's usually not necessary to handle CSRF tokens directly.
+  
+      - Form tag generator {!Dream.form_tag} generates and inserts a CSRF token
+        that {!Dream.val-form} and {!Dream.val-multipart} transparently verify.
+      - AJAX can be protected from CSRF by {!Dream.origin_referrer_check}.
+  
+      CSRF functions are exposed for creating custom schemes, and for
+      defense-in-depth purposes. See
+      {{:https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html}
+      OWASP {i Cross-Site Request Forgery Prevention Cheat Sheet}}. *)
+  
+  type csrf_result = [
+    | `Ok
+    | `Expired of float
+    | `Wrong_session
+    | `Invalid
+  ]
+  (** CSRF token verification outcomes.
+  
+      [`Expired] and [`Wrong_session] can occur in normal usage, when a user's
+      form or session expire, respectively. However, they can also indicate
+      attacks, including stolen tokens, stolen tokens from other sessions, or
+      attempts to use a token from an invalidated pre-session after login.
+  
+      [`Invalid] indicates a token with a bad signature, a payload that was not
+      generated by Dream, or other serious errors that cannot usually be triggered
+      by normal users. [`Invalid] usually corresponds to bugs or attacks.
+      [`Invalid] can also occur for very old tokens after old keys are no longer
+      in use on the server. *)
+  
+  val csrf_token : ?valid_for:float -> request -> string
+  (** Returns a fresh CSRF token bound to the given request's and signed with the
+      [~secret] given to {!Dream.run}. [~valid_for] is the token's lifetime, in
+      seconds. The default value is one hour ([3600.]). Dream uses signed tokens
+      that are not stored server-side. *)
+  
+  val verify_csrf_token : request -> string -> csrf_result promise
+  (** Checks that the CSRF token is valid for the {!type-request}'s session. *)
+  
+  val csrf_tag : request -> string
 
-  val form : ?csrf:bool -> request -> (string * string) list form_result Lwt.t
-  val multipart : ?csrf:bool -> request -> multipart_form form_result Lwt.t
-
-  val csrf_tag : request -> string
-
-  val form_tag :
-    ?method_:method_ ->
-    ?target:string ->
-    ?enctype:[ `Multipart_form_data ] ->
-    ?csrf_token:bool ->
-      action:string -> request -> string
-
-  val lowercase_headers : middleware
-  val content_length : middleware
-
-  val logger : middleware
-  val router : route list -> middleware
-
-  val get : string -> handler -> route
+  
+  
+  (** {1 Templates}
+  
+      Dream includes a template preprocessor that allows interleaving OCaml and
+      HTML in the same file:
+  
+      {v
+  let render message =
+    <html>
+      <body>
+        <p>The message is <b><%s message %></b>!</p>
+      </body>
+    </html>
+      v}
+  
+      See examples
+      {{:https://github.com/aantron/dream/tree/master/example/7-template#files}
+      [7-template]} \[{{:http://dream.as/7-template} playground}\] and
+      {{:https://github.com/aantron/dream/tree/master/example/r-template#files}
+      [r-template]} \[{{:http://dream.as/r-template} playground}\].
+  
+      There is also a typed alternative, provided by an external library,
+      {{:https://github.com/ocsigen/tyxml} TyXML}. It is shown in example
+      {{:https://github.com/aantron/dream/tree/master/example/w-tyxml#files}
+      [w-tyxml]} \[{{:http://dream.as/w-tyxml} playground}\]. If you are using
+      Reason syntax, TyXML can be used with
+      {{:https://ocsigen.org/tyxml/latest/manual/jsx} server-side JSX}. See
+      example
+      {{:https://github.com/aantron/dream/tree/master/example/r-tyxml#files}
+      [r-tyxml]} \[{{:http://dream.as/r-tyxml} playground}\].
+  
+      To use the built-in templates, add this to [dune]:
+  
+      {v
+  (rule
+    (targets template.ml)
+    (deps template.eml.ml)
+    (action (run dream_eml %{deps} --workspace %{workspace_root})))
+      v}
+  
+      A template begins...
+  
+      - {e Implicitly} on a line that starts with [<], perhaps with leading
+        whitespace. The line is part of the template.
+      - {e Explicitly} after a line that starts with [%%]. The [%%] line is not
+        part of the template.
+  
+      A [%%] line can also be used to set template options. The only option
+      supported presently is [%% response] for streaming the template using
+      {!Dream.write}, to a {!type-response} that is in scope. This is shown in
+      examples
+      {{:https://github.com/aantron/dream/tree/master/example/w-template-stream#files}
+      [w-template-stream]} and
+      {{:https://github.com/aantron/dream/tree/master/example/r-template-stream#files}
+      [r-template-stream]}.
+  
+      A template ends...
+  
+      - {e Implicitly}, when the indentation level is less than that of the
+        beginning line.
+      - {e Explicitly} on a line that starts with another [%%].
+  
+      Everything outside a template is ordinary OCaml code.
+  
+      OCaml code can also be inserted into a template:
+  
+      - [<%s code %>] expects [code] to evaluate to a [string], and inserts the
+        [string] into the template.
+      - A line that begins with [%] in the first column is OCaml code inside the
+        template. Its value is not inserted into the template. Indeed, it can be
+        fragments of control-flow constructs.
+      - [<% code %>] is a variant of [%] that can be used for short snippets
+        within template lines.
+  
+      The [s] in [<%s code %>] is actually a
+      {{:https://caml.inria.fr/pub/docs/manual-ocaml/libref/Printf.html}
+      Printf}-style format specification. So, for example, one can print two hex
+      digits using [<%02X code %>].
+  
+      [<%s code %>] automatically escapes the result of [code] using
+      {!Dream.html_escape}. This can be suppressed with [!]. [<%s! code %>] prints
+      the result of [code] literally. {!Dream.html_escape} is only safe for use in
+      HTML text and quoted attribute values. It does not offer XSS protection in
+      unquoted attribute values, CSS in [<style>] tags, or literal JavaScript in
+      [<script>] tags. *)
+  
+  val form_tag :
+    ?method_:[< method_ ] ->
+    ?target:string ->
+    ?enctype:[< `Multipart_form_data ] ->
+    ?csrf_token:bool ->
+      action:string -> request -> string
+  (** Generates a [<form>] tag and an [<input>] tag with a CSRF token, suitable
+      for use with {!Dream.val-form} and {!Dream.val-multipart}. For example, in
+      a template,
+  
+      {[
+        <%s! Dream.form_tag ~action:"/" request %>
+          <input name="my.field">
+        </form>
+      ]}
+  
+      expands to
+  
+      {[
+        <form method="POST" action="/">
+          <input name="dream.csrf" type="hidden" value="a-token">
+          <input name="my.field">
+        </form>
+      ]}
+  
+      [~method] sets the method used to submit the form. The default is [`POST].
+  
+      [~target] adds a [target] attribute. For example, [~target:"_blank"] causes
+      the browser to submit the form in a new tab or window.
+  
+      Pass [~enctype:`Multipart_form_data] for a file upload form.
+  
+      [~csrf_token:false] suppresses generation of the [dream.csrf] field. *)
+  
+  
+  
+  (** {1 Middleware}
+  
+      Interesting built-in middlewares are scattered throughout the various
+      sections of these docs, according to where they are relevant. This section
+      contains only generic middleware combinators. *)
+  
+  val no_middleware : middleware
+  (** Does nothing but call its inner handler. Useful for disabling middleware
+      conditionally during application startup:
+  
+      {[
+        if development then
+          my_middleware
+        else
+          Dream.no_middleware
+      ]} *)
+  
+  val pipeline : middleware list -> middleware
+  (** Combines a sequence of middlewares into one, such that these two lines are
+      equivalent:
+  
+      {v
+  Dream.pipeline [middleware_1; middleware_2] @@ handler
+      v}
+      {v
+                  middleware_1 @@ middleware_2 @@ handler
+      v} *)
+  
+  
+  
+  (** {1 Routing} *)
+  
+  val router : route list -> middleware
+  (** Creates a router. Besides interpreting routes, a router is a middleware
+      which calls its next handler if none of its routes match the request. Route
+      components starting with [:] are parameters, which can be retrieved with
+      {!Dream.param}. See example
+      {{:https://github.com/aantron/dream/tree/master/example/3-router#files}
+      [3-router]} \[{{:http://dream.as/3-router} playground}\].
+  
+      {[
+        let () =
+          Dream.run
+          @@ Dream.router [
+            Dream.get "/echo/:word" @@ fun request ->
+              Dream.html (Dream.param "word" request);
+          ]
+          @@ Dream.not_found
+      ]}
+  
+      {!Dream.scope} is the main form of site composition. However, Dream also
+      supports full subsites with [**]:
+  
+      {[
+        let () =
+          Dream.run
+          @@ Dream.router [
+            Dream.get "/static/**" @@ Dream.static "www/static";
+          ]
+          @@ Dream.not_found
+      ]}
+  
+      [**] causes the request's path to be trimmed by the route prefix, and the
+      request's prefix to be extended by it. It is mainly useful for “mounting”
+      {!Dream.static} as a subsite.
+  
+      It can also be used as an escape hatch to convert a handler, which may
+      include its own router, into a subsite. However, it is better to compose
+      sites with routes and {!Dream.scope} rather than opaque handlers and [**],
+      because, in the future, it may be possible to query routes for site
+      structure metadata. *)
+  
+  val get     : string -> handler -> route
+  (** Forwards [`GET] requests for the given path to the handler.
+  
+      {[
+        Dream.get "/home" home_template
+      ]} *)
+  
+  val post    : string -> handler -> route
+  val put     : string -> handler -> route
+  val delete  : string -> handler -> route
+  val head    : string -> handler -> route
+  val connect : string -> handler -> route
+  val options : string -> handler -> route
+  val trace   : string -> handler -> route
+  val patch   : string -> handler -> route
+  (** Like {!Dream.get}, but for each of the other {{!type-method_} methods}. *)
+  
+  val any     : string -> handler -> route
+  (** Like {!Dream.get}, but does not check the method. *)
+  
   val not_found : handler
-
-  type error =
-    { condition :
-        [ `Response of response
-        | `String of string
-        | `Exn of exn ]
-    ; layer :
-        [ `App
-        | `HTTP
-        | `HTTP2
-        | `TLS
-        | `WebSocket ]
-    ; caused_by :
-        [ `Server
-        | `Client ]
-    ; request : request option
-    ; response : response option
-    ; client : string option
-    ; severity : log_level
-    ; will_send_response : bool }
-
-  type error_handler = error -> response option Lwt.t
-
+  (** Always responds with [404 Not Found]. *)
+  
+  (* :((( *)
+  val param : request -> string -> string
+  (** Retrieves the path parameter. If it is missing, {!Dream.param} raises an
+      exception — the program is buggy. *)
+  
+  val scope : string -> middleware list -> route list -> route
+  (** Groups routes under a common path prefix and middlewares. Middlewares are
+      run only if a route matches.
+  
+      {[
+        Dream.scope "/api" [Dream.origin_referrer_check] [
+          Dream.get  "/widget" get_widget_handler;
+          Dream.post "/widget" set_widget_handler;
+        ]
+      ]}
+  
+      To prefix routes without applying any more middleware, use the empty list:
+  
+      {[
+        Dream.scope "/api" [] [
+          (* ...routes... *)
+        ]
+      ]}
+  
+      To apply middleware without prefixing the routes, use ["/"]:
+  
+      {[
+        Dream.scope "/" [Dream.origin_referrer_check] [
+          (* ...routes... *)
+        ]
+      ]}
+  
+      Scopes can be nested. *)
+  
+  val no_route : route
+  (** A dummy value of type {!type-route} that is completely ignored by the
+      router. Useful for disabling routes conditionally during application start:
+  
+      {[
+        Dream.router [
+          if development then
+            Dream.get "/graphiql" (Dream.graphiql "/graphql")
+          else
+            Dream.no_route;
+        ]
+      ]} *)
+  
+  
+  
+  (** {1 Static files} *)
+  
+  val static :
+    loader:(string -> string -> handler) ->
+      string -> handler
+  (** Serves static files from a local directory. See example
+      {{:https://github.com/aantron/dream/tree/master/example/f-static#files}
+      [f-static]}.
+  
+      {[
+        let () =
+          Dream.run
+          @@ Dream.router {
+            Dream.get "/static/**" @@ Dream.static "www/static";
+          }
+          @@ Dream.not_found
+      ]}
+  
+      [Dream.static local_directory] validates the path substituted for [**] by
+      checking that it is (1) relative, (2) does not contain parent directory
+      references ([..]), and (3) does not contain separators ([/]) within
+      components. If these checks fail, {!Dream.static} responds with [404 Not
+      Found].
+  
+      If the checks succeed, {!Dream.static} calls [~loader local_directory path
+      request], where
+  
+      - [local_directory] is the same directory that was passed to
+        {!Dream.static}.
+      - [path] is what was substituted for [**].
+  
+      The default loader is {!Dream.from_filesystem}. See example
+      {{:https://github.com/aantron/dream/tree/master/example/w-one-binary#files}
+      [w-one-binary]} for a loader that serves files from memory instead. *)
+  
+  val mime_lookup : string -> (string * string) list
+  (** Returns a [Content-Type:] header based on the given filename. This is mostly
+      a wrapper around {{:https://github.com/mirage/ocaml-magic-mime} magic-mime}.
+      However, if the result is [text/html], {!Dream.mime_lookup} replaces it with
+      [text/html; charset=utf-8], so as to match {!Dream.html}. *)
+  
+  
+  
+  (** {1 Sessions}
+  
+      Dream's default sessions contain string-to-string dictionaries for
+      application data. For example, a logged-in session might have
+  
+      {[
+        [
+          "user", "someone";
+          "lang", "ut-OP";
+        ]
+      ]}
+  
+      Sessions also have three pieces of metadata:
+  
+      - {!Dream.session_id}
+      - {!Dream.session_label}
+      - {!Dream.session_expires_at}
+  
+      There are several back ends, which decide where the sessions are stored:
+  
+      - {!Dream.memory_sessions}
+      - {!Dream.sql_sessions}
+      - {!Dream.cookie_sessions}
+  
+      All requests passing through session middleware are assigned a session,
+      either an existing one, or a new empty session, known as a {e pre-session}.
+  
+      When a session is at least half-expired, it is automatically refreshed by
+      the next request that it is assigned to.
+  
+      See example
+      {{:https://github.com/aantron/dream/tree/master/example/b-session#files}
+      [b-session]} \[{{:http://dream.as/b-session} playground}\]. *)
+  
+  val session : string -> request -> string option
+  (** Value from the request's session. *)
+  
+  val put_session : string -> string -> request -> unit promise
+  (** Mutates a value in the request's session. The back end may commit the value
+      to storage immediately, so this function returns a promise. *)
+  
+  val all_session_values : request -> (string * string) list
+  (** Full session dictionary. *)
+  
+  val invalidate_session : request -> unit promise
+  (** Invalidates the request's session, replacing it with a fresh, empty
+      pre-session. *)
+  
+  (** {2 Back ends} *)
+  
+  val memory_sessions : ?lifetime:float -> middleware
+  (** Stores sessions in server memory. Passes session IDs to clients in cookies.
+      Session data is lost when the server process exits. *)
+  
+  val cookie_sessions : ?lifetime:float -> middleware
+  (** Stores sessions in encrypted cookies. Pass {!Dream.run} [~secret] to be able
+      to decrypt cookies from previous server runs. *)
+  
+  
+  (** {2 Metadata} *)
+  
+  val session_id : request -> string
+  (** Secret value used to identify a client. *)
+  
+  val session_label : request -> string
+  (** Tracing label suitable for printing to logs. *)
+  
+  val session_expires_at : request -> float
+  (** Time at which the session will expire. *)
+  
+  
+  
+  (** {1 Flash messages}
+  
+      Flash messages are short strings which are stored in cookies during one
+      request, to be made available for the next request. The typical use case is
+      to provide form feedback across a redirect. See example
+      {{:https://github.com/aantron/dream/tree/master/example/w-flash#files}
+      [w-flash]} \[{{:http://dream.as/w-flash} playground}\]. *)
+  
+  val flash_messages : middleware
+  (** Implements storing flash messages in cookies. *)
+  
+  val flash : request -> (string * string) list
+  (** The request's flash messages. *)
+  
+  val put_flash : request -> string -> string -> unit
+  (** Adds a flash message to the request. *)
+  
+  
+  
+  
+  (** {1 Logging}
+  
+      Dream uses the {{:https://erratique.ch/software/logs/doc/Logs/index.html}
+      Logs} library internally, and integrates with all other libraries in your
+      project that are also using it. Dream provides a slightly simplified
+      interface to Logs.
+  
+      All log output is written to [stderr].
+  
+      See
+      {{:https://cheatsheetseries.owasp.org/cheatsheets/Logging_Cheat_Sheet.html}
+      OWASP {i Logging Cheat Sheet}} for a survey of security topics related to
+      logging. *)
+  
+  val logger : middleware
+  (** Logs and times requests. Time spent logging is included. See example
+      {{:https://github.com/aantron/dream/tree/master/example/2-middleware#files}
+      [2-middleware]} \[{{:http://dream.as/2-middleware} playground}\]. *)
+  
+  val log : ('a, Format.formatter, unit, unit) format4 -> 'a
+  (** Formats a message and logs it. Disregard the obfuscated type: the first
+      argument is a format string as described in the standard library modules
+      {{:http://caml.inria.fr/pub/docs/manual-ocaml/libref/Printf.html#VALfprintf}
+      [Printf]} and
+      {{:http://caml.inria.fr/pub/docs/manual-ocaml/libref/Format.html#VALfprintf}
+      [Format]}. The rest of the arguments are determined by the format string.
+      See example
+      {{:https://github.com/aantron/dream/tree/master/example/a-log#files}
+      [a-log]} \[{{:http://dream.as/a-log} playground}\].
+  
+      {[
+        Dream.log "Counter is now: %i" counter;
+        Dream.log "Client: %s" (Dream.client request);
+      ]} *)
+  
+  type ('a, 'b) conditional_log =
+    ((?request:request ->
+      ('a, Format.formatter, unit, 'b) format4 -> 'a) -> 'b) ->
+      unit
+  (** Loggers. This type is difficult to read — instead, see {!Dream.val-error} for
+      usage. *)
+  
+  type log_level = [
+    | `Error
+    | `Warning
+    | `Info
+    | `Debug
+  ]
+  (** Log levels, in order from most urgent to least. *)
+  
+  val error     : ('a, unit) conditional_log
+  (** Formats a message and writes it to the log at level [`Error]. The inner
+      formatting function is called only if the {{!initialize_log} current log
+      level} is [`Error] or higher. See example
+      {{:https://github.com/aantron/dream/tree/master/example/a-log#files}
+      [a-log]}.
+  
+      {[
+        Dream.error (fun log ->
+          log ~request "My message, details: %s" details);
+      ]}
+  
+      Pass the optional argument [~request] to {!Dream.val-error} to associate the
+      message with a specific request. If not passed, {!Dream.val-error} will try
+      to guess the request. This usually works, but not always. *)
+  
+  val warning   : ('a, unit) conditional_log
+  val info      : ('a, unit) conditional_log
+  val debug     : ('a, unit) conditional_log
+  (** Like {!Dream.val-error}, but for each of the other {{!log_level} log
+      levels}. *)
+  
+  type sub_log = {
+    error   : 'a. ('a, unit) conditional_log;
+    warning : 'a. ('a, unit) conditional_log;
+    info    : 'a. ('a, unit) conditional_log;
+    debug   : 'a. ('a, unit) conditional_log;
+  }
+  (** Sub-logs. See {!Dream.val-sub_log} right below. *)
+  
+  val sub_log : ?level:[< log_level] -> string -> sub_log
+  (** Creates a new sub-log with the given name. For example,
+  
+      {[
+        let log = Dream.sub_log "myapp.ajax"
+      ]}
+  
+      ...creates a logger that can be used like {!Dream.val-error} and the other
+      default loggers, but prefixes ["myapp.ajax"] to each log message.
+  
+      {[
+        log.error (fun log -> log ~request "Validation failed")
+      ]}
+  
+      [?level] sets the log level threshold for this sub-log only. If not
+      provided, falls back to the global log level set by {!Dream.initialize_log},
+      unless {!Dream.set_log_level} is used.
+  
+      See [README] of example
+      {{:https://github.com/aantron/dream/tree/master/example/a-log#files}
+      [a-log]}. *)
+  
+  val initialize_log :
+    ?backtraces:bool ->
+    ?async_exception_hook:bool ->
+    ?level:[< log_level ] ->
+    ?enable:bool ->
+      unit -> unit
+  (** Initializes Dream's log with the given settings.
+  
+      Dream initializes its logging back end lazily. This is so that if a Dream
+      Web app is linked into a larger binary, it does not affect that binary's
+      runtime unless the Web app runs.
+  
+      This also allows the Web app to give logging settings explicitly by calling
+      {!Dream.initialize_log} early in program execution.
+  
+      - [~backtraces:true], the default, causes Dream to call
+        {{:http://caml.inria.fr/pub/docs/manual-ocaml/libref/Printexc.html#VALrecord_backtrace}
+        [Printexc.record_backtrace]}, which makes exception backtraces available.
+  
+      - [~async_exception_hook:true], the default, causes Dream to set
+        {{:https://ocsigen.org/lwt/latest/api/Lwt#VALasync_exception_hook}
+        [Lwt.async_exception_hook]} so as to forward all asynchronous exceptions
+        to the logger, and not terminate the process.
+  
+      - [~level] sets the log level threshold for the entire binary. The default
+        is [`Info].
+  
+      - [~enable:false] disables Dream logging completely. This can help sanitize
+        output during testing. *)
+  
+  val set_log_level : string -> [< log_level ] -> unit
+  (** Set the log level threshold of the given sub-log. *)
+  
+  
+  
+  (** {1 Errors}
+  
+      Dream passes all errors to a single error handler, including...
+  
+      - exceptions and rejected promises from the application,
+      - [4xx] and [5xx] responses from the application, and
+      - lower-level errors, such as TLS handshake failures and malformed HTTP
+        requests.
+  
+      This allows customizing error handling in one place. Including low-level
+      errors prevents leakage of strings in automatic responses not under the
+      application's control, for full internationalization.
+  
+      Use {!Dream.error_template} and pass the result to {!Dream.run}
+      [~error_handler] to customize the error template.
+  
+      The default error handler logs errors and its template generates
+      completely empty responses, to avoid internationalization issues. In
+      addition, this conforms to the recommendations in
+      {{:https://cheatsheetseries.owasp.org/cheatsheets/Error_Handling_Cheat_Sheet.html}
+      OWASP {i Error Handling Cheat Sheet}}.
+  
+      For full control over error handling, including logging, you can define an
+      {!type-error_handler} directly. *)
+  
+  type error = {
+    condition : [
+      | `Response of response
+      | `String of string
+      | `Exn of exn
+    ];
+    layer : [
+      | `App
+      | `HTTP
+      | `HTTP2
+      | `TLS
+      | `WebSocket
+    ];
+    caused_by : [
+      | `Server
+      | `Client
+    ];
+    request : request option;
+    response : response option;
+    client : string option;
+    severity : log_level;
+    will_send_response : bool;
+  }
+  (** Detailed errors. Ignore this type if only using {!Dream.error_template}.
+  
+      {ul
+      {li
+      [condition] describes the error itself.
+  
+      - [`Response] is a [4xx] or [5xx] response.
+      - [`String] is an error that has only an English-language description.
+      - [`Exn] is a caught exception.
+  
+      The default error handler logs [`Exn] and [`Strings], but not [`Response].
+      [`Response] is assumed to be deliberate, and already logged by
+      {!Dream.logger}.
+      }
+  
+      {li
+      [layer] is which part of the Dream stack detected the error.
+  
+      - [`App] is for application exceptions, rejections, and [4xx], [5xx]
+        responses.
+      - [`HTTP] and [`HTTP2] are for low-level HTTP protocol errors.
+      - [`TLS] is for low-level TLS errors.
+      - [`WebSocket] is for WebSocket errors.
+  
+      The default error handler uses this to just prepend a prefix to its log
+      messages.
+      }
+  
+      {li
+      [caused_by] is the party likely to have caused the error.
+  
+      - [`Server] errors suggest bugs, and correspond to [5xx] responses.
+      - [`Client] errors suggest user errors, network failure, buggy clients, and
+        sometimes attacks. They correspond to [4xx] responses.
+      }
+  
+      {li
+      [request] is a {!type-request} associated with the error, if there is one.
+  
+      As examples, a request might not be available if the error is a failure to
+      parse an HTTP/1.1 request at all, or failure to perform a TLS handshake.
+  
+      In case of a [`WebSocket] error, the request is the client's original
+      request to establish the WebSocket connection.
+      }
+  
+      {li
+      [response] is a {!type-response} that was either generated by the
+      application, or suggested by the error context.
+  
+      In case of a [`WebSocket] error, the response is the application's original
+      connection agreement response created by {!Dream.val-websocket}.
+  
+      See {!Dream.error_template}.
+      }
+  
+      {li
+      [client] is the client's address, if available. For example,
+      [127.0.0.1:56001].
+      }
+  
+      {li
+      Suggested {{!type-log_level} log level} for the error. Usually [`Error] for
+      [`Server] errors and [`Warning] for client errors.
+      }
+  
+      {li
+      [will_send_response] is [true] in error contexts where Dream will still send
+      a response.
+  
+      The default handler calls the error template only if [will_send_response] is
+      [true].
+      }} *)
+  
+  type error_handler = error -> response option promise
+  (** Error handlers log errors and convert them into responses. Ignore if using
+      {!Dream.error_template}.
+  
+      If the error has [will_send_response = true], the error handler must return
+      a response. Otherwise, it should return [None].
+  
+      If an error handler raises an exception or rejects, Dream logs this
+      secondary failure. If the error context needs a response, Dream responds
+      with an empty [500 Internal Server Error].
+  
+      The behavior of Dream's default error handler is described at
+      {!Dream.type-error}. *)
+  (* TODO Get rid of the option? *)
+  
   val error_template :
-  (error -> string -> response -> response Lwt.t) -> error_handler
-
+    (error -> string -> response -> response promise) -> error_handler
+  (** Builds an {!error_handler} from a template. See example
+      {{:https://github.com/aantron/dream/tree/master/example/9-error#files}
+      [9-error]} \[{{:http://dream.as/9-error} playground}\].
+  
+      {[
+        let my_error_handler =
+          Dream.error_template (fun _error debug_dump suggested_response ->
+            let body =
+              match debug_dump with
+              | Some string -> Dream.html_escape string
+              | None -> Dream.status_to_string (Dream.status suggested_response)
+            in
+  
+            suggested_response
+            |> Dream.with_body body
+            |> Lwt.return)
+      ]}
+  
+      The error's context suggests a response. Usually, its only valid field is
+      {!Dream.val-status}.
+  
+      - If the error is an exception or rejection from the application, the status
+        is usually [500 Internal Server Error].
+      - In case of a [4xx] or [5xx] response from the application, that response
+        itself is passed to the template.
+      - For low-level errors, the status is typically either [400 Bad Request] if
+        the error was likely caused by the client, and [500 Internal Server Error]
+        if the error was likely caused by the server.
+  
+      [~debug_dump] is a multi-line string containing an error description, stack
+      trace, request state, and other information.
+  
+      When an error occurs in a context where a response is not possible, the
+      template is not called. In some contexts where the template is called, the
+      status code is hardcoded, but the headers and body from the template's
+      response will still be used.
+  
+      If the template itself raises an exception or rejects, an empty [500
+      Internal Server Error] will be sent in contexts that require a response. *)
+  
+  val catch : (error -> response promise) -> middleware
+  (** Forwards exceptions, rejections, and [4xx], [5xx] responses from the
+      application to the error handler. See {!section-errors}. *)
+  (* TODO Error handler should not return an option, and then the type can be
+      used here. *)
+  
+  val lowercase_headers : middleware
+  (** Lowercases response headers for HTTP/2 requests. *)
+  
+  val content_length : middleware
+  (** If the request has {!Dream.version} [(1, _)], then...
+  
+      - if the response does not have [Content-Length:] and the body is a string,
+        sets [Content-Length:] to the string's length, or
+      - if the response does not have [Transfer-Encoding:] and the body is a
+        stream, sets [Transfer-Encoding: chunked].
+  
+      This is built in because an application cannot be expected to decide
+      including these headers in the face of transparent HTTP/2 upgrades. The
+      headers are necessary in HTTP/1, and forbidden or redundant and difficult to
+      use in HTTP/2. *)
+  
+  val with_site_prefix : string -> middleware
+  (** Removes the given prefix from the path in each request, and adds it to the
+      request prefix. Responds with [502 Bad Gateway] if the path does not have
+      the expected prefix.
+  
+      This is for applications that are not running at the root ([/]) of their
+      domain. The default is ["/"], for no prefix. After [with_site_prefix],
+      routing is done relative to the prefix, and the prefix is also necessary for
+      emitting secure cookies. *)
+  (* TODO Clarify that this isn't included with the built-ins, but is something on
+      topic that one might want to use. *)
+  
+  
+  
+  (** {1:web_formats Web formats} *)
+  
+  val html_escape : string -> string
+  (** Escapes a string so that it is suitable for use as text inside HTML
+      elements and quoted attribute values. Implements
+      {{:https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html#rule-1-html-encode-before-inserting-untrusted-data-into-html-element-content}
+      OWASP {i Cross-Site Scripting Prevention Cheat Sheet RULE #1}}.
+  
+      This function is {e not} suitable for use with unquoted attributes, inline
+      scripts, or inline CSS. See {i Security} in example
+      {{:https://github.com/aantron/dream/tree/master/example/7-template#security}
+      [7-template]}. *)
+  
+  val to_base64url : string -> string
+  (** Converts the given string its base64url encoding, as specified in
+      {{:https://tools.ietf.org/html/rfc4648#section-5} RFC 4648 §5}, using a
+      Web-safe alphabet and no padding. The resulting string can be used without
+      escaping in URLs, form data, cookies, HTML content, attributes, and
+      JavaScript code. For more options, see the
+      {{:https://mirage.github.io/ocaml-base64/base64/Base64/index.html} Base64}
+      library.*)
+  
+  val from_base64url : string -> string option
+  (** Inverse of {!Dream.to_base64url}. *)
+  
+  val to_percent_encoded : ?international:bool -> string -> string
+  (** Percent-encodes a string for use inside a URL.
+  
+      [~international] is [true] by default, and causes non-ASCII bytes to be
+      preserved. This is suitable for display to users, including in [<a href="">]
+      attributes, which are displayed in browser status lines. See
+      {{:https://tools.ietf.org/html/rfc3987} RFC 3987}.
+  
+      Use [~international:false] for compatibility with legacy systems, or when
+      constructing URL fragments from untrusted input that may not match the
+      interface language(s) the user expects. In the latter case, similar letters
+      from different writing scripts can be used to mislead users about the
+      targets of links. *)
+  
+  val from_percent_encoded : string -> string
+  (** Inverse of {!Dream.to_percent_encoded}. *)
+  
+  val to_form_urlencoded : (string * string) list -> string
+  (** Inverse of {!Dream.from_form_urlencoded}. Percent-encodes names and
+      values. *)
+  
+  val from_form_urlencoded : string -> (string * string) list
+  (** Converts form data or a query string from
+      [application/x-www-form-urlencoded] format to a list of name-value pairs.
+      See {{:https://tools.ietf.org/html/rfc1866#section-8.2.1} RFC 1866
+      §8.2.1}. Reverses the percent-encoding of names and values. *)
+  
+  val from_cookie : string -> (string * string) list
+  (** Converts a [Cookie:] header value to key-value pairs. See
+      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.2.1}
+      RFC 6265bis §4.2.1}. Does not apply any decoding to names and values. *)
+  
+  val to_set_cookie :
+    ?expires:float ->
+    ?max_age:float ->
+    ?domain:string ->
+    ?path:string ->
+    ?secure:bool ->
+    ?http_only:bool ->
+    ?same_site:[ `Strict | `Lax | `None ] ->
+      string -> string -> string
+  (** [Dream.to_set_cookie name value] formats a [Set-Cookie:] header value. The
+      optional arguments correspond to the attributes specified in
+      {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-5.3}
+      RFC 6265bis §5.3}, and are documented at {!Dream.set_cookie}.
+  
+      Does not apply any encoding to names and values. Be sure to encode so that
+      names and values cannot contain `=`, `;`, or newline characters. *)
+  
+  val split_target : string -> string * string
+  (** Splits a request target into a path and a query string. *)
+  
+  val from_path : string -> string list
+  (** Splits the string into components on [/] and percent-decodes each component.
+      Empty components are dropped, except for the last. This function does not
+      distinguish between absolute and relative paths, and is only meant for
+      routes and request targets. So,
+  
+      - [Dream.from_path ""] becomes [[]].
+      - [Dream.from_path "/"] becomes [[""]].
+      - [Dream.from_path "abc"] becomes [["abc"]].
+      - [Dream.from_path "/abc"] becomes [["abc"]].
+      - [Dream.from_path "abc/"] becomes [["abc"; ""]].
+      - [Dream.from_path "a%2Fb"] becomes [["a/b"]].
+      - [Dream.from_path "a//b"] becomes [["a"; "b"]].
+  
+      This function is not for use on full targets, because they may incldue query
+      strings ([?]), and {!Dream.from_path} does not treat them specially. Split
+      query strings off with {!Dream.split_target} first. *)
+  
+  val to_path : ?relative:bool -> ?international:bool -> string list -> string
+  (** Percent-encodes a list of path components and joins them with [/] into a
+      path. Empty components, except for the last, are removed. The path is
+      absolute by default. Use [~relative:true] for a relative path.
+      {!Dream.to_path} uses an IRI-friendly percent encoder, which preserves UTF-8
+      bytes in unencoded form. Use [~international:false] to percent-encode those
+      bytes as well, for legacy protocols that require ASCII URLs. *)
+  
+  val drop_trailing_slash : string list -> string list
+  (** Changes the representation of path [abc/] to the representation of [abc] by
+      checking if the last element in the list is [""], and, if it is, dropping
+      it. *)
+  
+  val text_html : string
+  (** The string ["text/html; charset=utf-8"] for [Content-Type:] headers. *)
+  
+  val application_json : string
+  (** The string ["application/json"] for [Content-Type:] headers. *)
+  
+  
+  
+  (** {1 Cryptography} *)
+  
+  val set_secret : ?old_secrets:string list -> string -> middleware
+  (** Sets a key to be used for cryptographic operations, such as signing CSRF
+      tokens and encrypting cookies.
+  
+      If this middleware is not used, a random secret is generated the first time
+      a secret is needed. The random secret persists for the lifetime of the
+      process. This is useful for quick testing and prototyping, but it means that
+      restarts of the server will not be able to verify tokens or decrypt cookies
+      generated by earlier runs, and multiple servers in a load-balancing
+      arrangement will not accept each others' tokens and cookies.
+  
+      For production, generate a 256-bit key with
+  
+      {[
+        Dream.to_base64url (Dream.random 32)
+      ]}
+  
+      [~old_secrets] is a list of previous secrets that will not be used for
+      encryption or signing, but will still be tried for decryption and
+      verification. This is intended for key rotation. A medium-sized Web app
+      serving 1000 fresh encrypted cookies per second should rotate keys about
+      once a year. *)
+  
+  val random : int -> string
+  (** Generates the requested number of bytes using a
+      {{:https://github.com/mirage/mirage-crypto} cryptographically secure random
+      number generator}. *)
+  
+  val encrypt :
+    ?associated_data:string ->
+      request -> string -> string
+  (** Signs and encrypts the string using the [~secret] in the request. See
+      {!Dream.run} for setting [~secret].
+  
+      [~associated_data] is included when computing the signature, but not
+      included in the ciphertext. It can be used like a “salt,” to force
+      ciphertexts from different contexts to be distinct, and dependent on the
+      context.
+  
+      For example, when {!Dream.set_cookie} encrypts cookie values, it internally
+      passes the cookie names in the associated data. This makes it impossible (or
+      impractical) to use the ciphertext from one cookie as the value of another.
+      The associated data will not match, and the value will be recognized as
+      invalid.
+  
+      The cipher presently used by Dream is
+      {{:https://tools.ietf.org/html/rfc5116#section-5.2} AEAD_AES_256_GCM}. It
+      will be replaced by
+      {{:https://tools.ietf.org/html/rfc8452} AEAD_AES_256_GCM_SIV} as soon as the
+      latter is {{:https://github.com/mirage/mirage-crypto/issues/111} available}.
+      The upgrade will be transparent, because Dream includes a cipher rotation
+      scheme.
+  
+      The cipher is suitable for encrypted transmissions and storing data other
+      than credentials. For password or other credential storage, see package
+      {{:https://github.com/Khady/ocaml-argon2} [argon2]}. See
+      {{:https://cheatsheetseries.owasp.org/cheatsheets/Cryptographic_Storage_Cheat_Sheet.html}
+      OWASP {i Cryptographic Storage Cheat Sheet}} and
+      {{:https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html}
+      OWASP {i Password Storage Cheat Sheet}}. *)
+  
+  val decrypt :
+    ?associated_data:string ->
+      request -> string -> string option
+  (** Reverses {!Dream.encrypt}.
+  
+      To support secret rotation, the decryption secrets with which decryption is
+      attempted are [(~secret)::(~old_secrets)]. See the descriptions of [~secret]
+      and [~old_secrets] in {!Dream.run}. *)
+  
+  
+  
+  (** {1 Variables}
+  
+      Dream supports user-defined per-message variables for use by middlewares. *)
+  
+  type 'a field
+  (** Per-message variable. *)
+  
+  val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
+  (** Declares a variable of type ['a] in all messages. The variable is initially
+      unset in each message. The optional [~name] and [~show_value] are used by
+      {!Dream.run} [~debug] to show the variable in debug dumps. *)
+  
+  
+  val field : 'b message -> 'a field -> 'a option
+  (** Retrieves the value of the per-message variable. *)
+  
+  val set_field : 'b message -> 'a field -> 'a -> unit
+  (** Sets the per-message variable to the value. *)
+  
+  
+  val echo : handler
+  (** Responds with the request body. *)
+  
   val https :
        ?stop:Lwt_switch.t
     -> port:int

From 831f32ba91650f530b2417aa1cc8d69213b957d2 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Mon, 28 Feb 2022 12:49:49 +0100
Subject: [PATCH 215/312] Mirage: reflect API changes

---
 src/mirage/error_handler.ml |  144 +++--
 src/mirage/mirage.ml        |   35 +-
 src/mirage/mirage.mli       | 1010 +++++++++++++++++------------------
 3 files changed, 594 insertions(+), 595 deletions(-)

diff --git a/src/mirage/error_handler.ml b/src/mirage/error_handler.ml
index 711d1897..e8da12ec 100644
--- a/src/mirage/error_handler.ml
+++ b/src/mirage/error_handler.ml
@@ -18,76 +18,72 @@ let select_log = function
   | `Info -> log.info
   | `Debug -> log.debug
 
-let dump (error : Dream__server.Catch.error) =
-  let buffer = Buffer.create 4096 in
-  let p format = Printf.bprintf buffer format in
-
-  begin match error.condition with
-  | `Response response ->
-    let status = Message.status response in
-    p "%i %s\n" (Status.status_to_int status) (Status.status_to_string status)
-
-  | `String "" ->
-    p "(Library error without description payload)\n"
-
-  | `String string ->
-    p "%s\n" string
-
-  | `Exn exn ->
-    let backtrace = Printexc.get_backtrace () in
-    p "%s\n" (Printexc.to_string exn);
-    backtrace |> Dream__server.Log.iter_backtrace (p "%s\n")
-  end;
-
-  p "\n";
-
-  let layer =
-    match error.layer with
-    | `TLS -> "TLS library"
-    | `HTTP -> "HTTP library"
-    | `HTTP2 -> "HTTP2 library"
-    | `WebSocket -> "WebSocket library"
-    | `App -> "Application"
-  in
-
-  let blame =
-    match error.caused_by with
-    | `Server -> "Server"
-    | `Client -> "Client"
-  in
-
-  let severity =
-    match error.severity with
-    | `Error -> "Error"
-    | `Warning -> "Warning"
-    | `Info -> "Info"
-    | `Debug -> "Debug"
-  in
-
-  p "From: %s\n" layer;
-  p "Blame: %s\n" blame;
-  p "Severity: %s" severity;
-
-  begin match error.client with
-  | None -> ()
-  | Some client -> p "\n\nClient: %s" client
-  end;
-
-  begin match error.request with
-  | None -> ()
-  | Some request ->
-
-    let major, minor = Message.version request in
-    p "\n\n%s %s HTTP/%i.%i"
-      (Method.method_to_string (Message.method_ request))
-      (Message.target request)
-      major minor;
-
-    Message.all_headers request
-    |> List.iter (fun (name, value) -> p "\n%s: %s" name value);
-
-    let show_variables kind =
-      kind (fun name value first ->
+  let dump (error : Catch.error) =
+    let buffer = Buffer.create 4096 in
+    let p format = Printf.bprintf buffer format in
+  
+    begin match error.condition with
+    | `Response response ->
+      let status = Message.status response in
+      p "%i %s\n" (Status.status_to_int status) (Status.status_to_string status)
+  
+    | `String "" ->
+      p "(Library error without description payload)\n"
+  
+    | `String string ->
+      p "%s\n" string
+  
+    | `Exn exn ->
+      let backtrace = Printexc.get_backtrace () in
+      p "%s\n" (Printexc.to_string exn);
+      backtrace |> Log.iter_backtrace (p "%s\n")
+    end;
+  
+    p "\n";
+  
+    let layer =
+      match error.layer with
+      | `TLS -> "TLS library"
+      | `HTTP -> "HTTP library"
+      | `HTTP2 -> "HTTP2 library"
+      | `WebSocket -> "WebSocket library"
+      | `App -> "Application"
+    in
+  
+    let blame =
+      match error.caused_by with
+      | `Server -> "Server"
+      | `Client -> "Client"
+    in
+  
+    let severity =
+      match error.severity with
+      | `Error -> "Error"
+      | `Warning -> "Warning"
+      | `Info -> "Info"
+      | `Debug -> "Debug"
+    in
+  
+    p "From: %s\n" layer;
+    p "Blame: %s\n" blame;
+    p "Severity: %s" severity;
+  
+    begin match error.client with
+    | None -> ()
+    | Some client -> p "\n\nClient: %s" client
+    end;
+  
+    begin match error.request with
+    | None -> ()
+    | Some request ->
+      p "\n\n%s %s"
+        (Method.method_to_string (Message.method_ request))
+        (Message.target request);
+  
+      Message.all_headers request
+      |> List.iter (fun (name, value) -> p "\n%s: %s" name value);
+  
+      Message.fold_fields (fun name value first ->
         if first then
           p "\n";
         p "\n%s: %s" name value;
@@ -95,11 +91,9 @@ let dump (error : Dream__server.Catch.error) =
         true
         request
       |> ignore
-    in
-    show_variables Message.fold_fields
-  end;
-
-  Buffer.contents buffer
+    end;
+  
+    Buffer.contents buffer
 
   let customize template (error : Catch.error) =
 
diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 694d5c42..94530b5b 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -28,7 +28,7 @@ let wrap_handler_httpaf _user's_error_handler user's_dream_handler =
     let httpaf_request = Httpaf.Reqd.request reqd in
     let method_ = to_dream_method httpaf_request.meth in
     let target  = httpaf_request.target in
-    let version = (httpaf_request.version.major, httpaf_request.version.minor) in
+    let _version = (httpaf_request.version.major, httpaf_request.version.minor) in
     let headers = Httpaf.Headers.to_list httpaf_request.headers in
     let body    = Httpaf.Reqd.request_body reqd in
 
@@ -48,7 +48,7 @@ let wrap_handler_httpaf _user's_error_handler user's_dream_handler =
     let client_stream = Stream.(stream no_reader no_writer) in
     let server_stream = Stream.(stream body no_writer) in
 
-    let request = Message.request ~method_ ~target ~version ~headers client_stream server_stream in
+    let request = Message.request ~method_ ~target ~headers client_stream server_stream in
 
     (* Call the user's handler. If it raises an exception or returns a promise
        that rejects with an exception, pass the exception up to Httpaf. This
@@ -149,7 +149,6 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let info = default_log.info
   let debug = default_log.debug
   
-  include Dream__server.Router
   module Session = struct 
     include Dream__server.Session
     include Dream__server.Session.Make (Pclock)
@@ -162,10 +161,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   include Dream__server.Upload
   include Dream__server.Csrf
   
-  let content_length =
-    Dream__server.Content_length.content_length
   
-  include Dream__server.Lowercase_headers
   include Dream__server.Catch
   include Dream__server.Site_prefix
 
@@ -193,13 +189,13 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
 
   (* Requests *)
 
+
+  let body_stream = Message.server_stream
   let client = Helpers.client
-  let https = Helpers.https
   let method_ = Message.method_
   let target = Message.target
   let prefix = Router.prefix
   let path = Router.path
-  let version = Message.version
   let set_client = Helpers.set_client
   let set_method_ = Message.set_method_
   let query = Query.query
@@ -215,8 +211,11 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let redirect = Helpers.redirect
   let empty = Helpers.empty
   let stream = Helpers.stream
-  let websocket = Helpers.websocket
   let status = Message.status
+  let read = Message.read
+  let write = Message.write
+  let flush = Message.flush
+
 
   (* Headers *)
 
@@ -240,9 +239,6 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
 
   let body = Message.body
   let set_body = Message.set_body
-  let read = Helpers.read
-  let write = Helpers.write
-  let flush = Helpers.flush
   let close = Message.close
   type buffer = Stream.buffer
   type stream = Stream.stream
@@ -259,6 +255,17 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let abort_stream = Stream.abort
 
 
+  (* websockets *)
+
+  type websocket = stream * stream
+  let websocket = Helpers.websocket
+  type text_or_binary = [ `Text | `Binary ]
+  type end_of_message = [ `End_of_message | `Continues ]
+  let send = Helpers.send
+  let receive = Helpers.receive
+  let receive_fragment = Helpers.receive_fragment
+  let close_websocket = Message.close_websocket
+
 
   (* Middleware *)
 
@@ -268,7 +275,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
 
   (* Routing *)
 
-  let router = Router.router
+  let router (r: route list): handler = Router.router r
   let get = Router.get
   let post = Router.post
   let put = Router.put
@@ -381,8 +388,6 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
 
   let built_in_middleware prefix error_handler=
     Message.pipeline [
-      Dream__server.Lowercase_headers.lowercase_headers;
-      Dream__server.Content_length.content_length;
       Dream__server.Catch.catch (Error_handler.app error_handler);
       Dream__server.Site_prefix.with_site_prefix prefix;
     ]
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index eafc29e8..33a1b252 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -1,24 +1,19 @@
 type client
 type server
-
 type 'a message
-
 type request = client message
 type response = server message
-
 type handler = request -> response Lwt.t
 type middleware = handler -> handler
 
 module Make
-  (Pclock : Mirage_clock.PCLOCK)
-  (Time : Mirage_time.S)
-  (Stack : Tcpip.Stack.V4V6) : sig
-(* This file is part of Dream, released under the MIT license. See LICENSE.md
-   for details, or visit https://github.com/aantron/dream.
-
-   Copyright 2021 Anton Bachin *)
-
+    (Pclock : Mirage_clock.PCLOCK)
+    (Time : Mirage_time.S)
+    (Stack : Tcpip.Stack.V4V6) : sig
+  (* This file is part of Dream, released under the MIT license. See LICENSE.md
+     for details, or visit https://github.com/aantron/dream.
 
+     Copyright 2021 Anton Bachin *)
 
   (** {1 Types}
   Dream is built on just five types. The first two are the data types of
@@ -27,12 +22,12 @@ module Make
   type request = client message
   (** HTTP requests, such as [GET /something HTTP/1.1]. See
       {!section-requests}. *)
-  
+
   and response = server message
   (** HTTP responses, such as [200 OK]. See {!section-responses}. *)
-  
+
   (** The remaining three types are for building up Web apps. *)
-  
+
   and handler = request -> response promise
   (** Handlers are asynchronous functions from requests to responses. Example
       {{:https://github.com/aantron/dream/tree/master/example/1-hello#files}
@@ -47,7 +42,7 @@ module Make
           Dream.run (fun _ ->
             Dream.html "Good morning, world!")
       ]} *)
-  
+
   and middleware = handler -> handler
   (** Middlewares are functions that take a {!handler}, and run some code before
       or after — producing a “bigger” handler. Example
@@ -82,7 +77,7 @@ module Make
           = handler -> (request -> response promise)
           = handler -> request -> response promise
       ]} *)
-  
+
   and route
   (** Routes tell {!Dream.router} which handler to select for each request. See
       {!section-routing} and example
@@ -98,7 +93,7 @@ module Make
           ];
         ]
       ]} *)
-  
+
   (** {2 Algebra}
   
       The three handler-related types have a vaguely algebraic interpretation:
@@ -111,9 +106,8 @@ module Make
   
       {!Dream.scope} implements a left distributive law, making Dream a ring-like
       structure. *)
-  
   (** {2 Helpers} *)
-  
+
   and 'a message = 'a Dream_pure.Message.message
   (** ['a message], pronounced “any message,” allows some functions to take either
       {!type-request} or {!type-response} as arguments, because both are defined
@@ -122,8 +116,9 @@ module Make
       {[
         val Dream.header : string -> 'a message -> string option
       ]} *)
-  
+
   and client = Dream_pure.Message.client
+
   and server = Dream_pure.Message.server
   (** Type parameters for {!message} for {!type-request} and {!type-response},
       respectively. These are “phantom” types. They have no meaning other than
@@ -132,7 +127,7 @@ module Make
       docs. *)
   (* TODO These docs need to be clarified. *)
   (* TODO Hide all the Dream_pure type equalities. *)
-  
+
   and 'a promise = 'a Lwt.t
   (** Dream uses {{:https://github.com/ocsigen/lwt} Lwt} for promises and
       asynchronous I/O. See example
@@ -145,13 +140,11 @@ module Make
       [Lwt.fail]} in some places, in order to avoid clobbering your user's current
       exception backtrace — though, in most cases, you should still extend it with
       [raise] and [let%lwt], instead. *)
-  
-  
-  
+
   (** {1 Methods} *)
-  
-  type method_ = [
-    | `GET
+
+  type method_ =
+    [ `GET
     | `POST
     | `PUT
     | `DELETE
@@ -160,75 +153,69 @@ module Make
     | `OPTIONS
     | `TRACE
     | `PATCH
-    | `Method of string
-  ]
+    | `Method of string ]
   (** HTTP request methods. See
       {{:https://tools.ietf.org/html/rfc7231#section-4.3} RFC 7231 §4.2},
       {{:https://tools.ietf.org/html/rfc5789#page-2} RFC 5789 §2}, and
       {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods} MDN}. *)
-  
-  val method_to_string : [< method_ ] -> string
+
+  val method_to_string : [< method_] -> string
   (** Evaluates to a string representation of the given method. For example,
       [`GET] is converted to ["GET"]. *)
-  
+
   val string_to_method : string -> method_
   (** Evaluates to the {!type-method_} corresponding to the given method
       string. *)
-  
-  val methods_equal : [< method_ ] -> [< method_ ] -> bool
+
+  val methods_equal : [< method_] -> [< method_] -> bool
   (** Compares two methods, such that equal methods are detected even if one is
       represented as a string. For example,
   
       {[
         Dream.methods_equal `GET (`Method "GET") = true
       ]} *)
-  
-  val normalize_method : [< method_ ] -> method_
+
+  val normalize_method : [< method_] -> method_
   (** Converts methods represented as strings to variants. Methods generated by
       Dream are always normalized.
   
       {[
         Dream.normalize_method (`Method "GET") = `GET
       ]} *)
-  
-  
-  
+
   (** {1:status_codes Status codes} *)
-  
-  type informational = [
-    | `Continue
-    | `Switching_Protocols
-  ]
+
+  type informational =
+    [ `Continue
+    | `Switching_Protocols ]
   (** Informational ([1xx]) status codes. See
       {{:https://tools.ietf.org/html/rfc7231#section-6.2} RFC 7231 §6.2} and
       {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status#information_responses}
       MDN}. [101 Switching Protocols] is generated internally by
       {!Dream.val-websocket}. It is usually not necessary to use it directly. *)
-  
-  type successful = [
-    | `OK
+
+  type successful =
+    [ `OK
     | `Created
     | `Accepted
     | `Non_Authoritative_Information
     | `No_Content
     | `Reset_Content
-    | `Partial_Content
-  ]
+    | `Partial_Content ]
   (** Successful ([2xx]) status codes. See
       {{:https://tools.ietf.org/html/rfc7231#section-6.3} RFC 7231 §6.3},
       {{:https://tools.ietf.org/html/rfc7233#section-4.1} RFC 7233 §4.1} and
       {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status#successful_responses}
       MDN}. The most common is [200 OK]. *)
-  
-  type redirection = [
-    | `Multiple_Choices
+
+  type redirection =
+    [ `Multiple_Choices
     | `Moved_Permanently
     | `Found
     | `See_Other
     | `Not_Modified
     | `Temporary_Redirect
-    | `Permanent_Redirect
-  ]
+    | `Permanent_Redirect ]
   (** Redirection ([3xx]) status codes. See
       {{:https://tools.ietf.org/html/rfc7231#section-6.4} RFC 7231 §6.4} and
       {{:https://tools.ietf.org/html/rfc7538#section-3} RFC 7538 §3}, and
@@ -236,9 +223,9 @@ module Make
       MDN}. Use [303 See Other] to direct clients to follow up with a [GET]
       request, especially after a form submission. Use [301 Moved Permanently]
       for permanent redirections. *)
-  
-  type client_error = [
-    | `Bad_Request
+
+  type client_error =
+    [ `Bad_Request
     | `Unauthorized
     | `Payment_Required
     | `Forbidden
@@ -262,8 +249,7 @@ module Make
     | `Precondition_Required
     | `Too_Many_Requests
     | `Request_Header_Fields_Too_Large
-    | `Unavailable_For_Legal_Reasons
-  ]
+    | `Unavailable_For_Legal_Reasons ]
   (** Client error ([4xx]) status codes. The most common are [400 Bad Request],
       [401 Unauthorized], [403 Forbidden], and, of course, [404 Not Found].
   
@@ -284,133 +270,127 @@ module Make
         Headers Too Large].
       - {{:https://tools.ietf.org/html/rfc7725} RFC 7725} for
         [451 Unavailable For Legal Reasons]. *)
-  
-  type server_error = [
-    | `Internal_Server_Error
+
+  type server_error =
+    [ `Internal_Server_Error
     | `Not_Implemented
     | `Bad_Gateway
     | `Service_Unavailable
     | `Gateway_Timeout
-    | `HTTP_Version_Not_Supported
-  ]
+    | `HTTP_Version_Not_Supported ]
   (** Server error ([5xx]) status codes. See
       {{:https://tools.ietf.org/html/rfc7231#section-6.6} RFC 7231 §6.6} and
       {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status#server_error_responses}
       MDN}. The most common of these is [500 Internal Server Error]. *)
-  
-  type standard_status = [
-    | informational
+
+  type standard_status =
+    [ informational
     | successful
     | redirection
     | client_error
-    | server_error
-  ]
+    | server_error ]
   (** Sum of all the status codes declared above. *)
-  
-  type status = [
-    | standard_status
-    | `Status of int
-  ]
+
+  type status =
+    [ standard_status
+    | `Status of int ]
   (** Status codes, including codes directly represented as integers. See the
       types above for the full list and references. *)
-  
-  val status_to_string : [< status ] -> string
+
+  val status_to_string : [< status] -> string
   (** Evaluates to a string representation of the given status. For example,
       [`Not_Found] and [`Status 404] are both converted to ["Not Found"]. Numbers
       are used for unknown status codes. For example, [`Status 567] is converted
       to ["567"]. *)
-  
-  val status_to_reason : [< status ] -> string option
+
+  val status_to_reason : [< status] -> string option
   (** Converts known status codes to their string representations. Evaluates to
       [None] for unknown status codes. *)
-  
-  val status_to_int : [< status ] -> int
+
+  val status_to_int : [< status] -> int
   (** Evaluates to the numeric value of the given status code. *)
-  
+
   val int_to_status : int -> status
   (** Evaluates to the symbolic representation of the status code with the given
       number. *)
-  
-  val is_informational : [< status ] -> bool
+
+  val is_informational : [< status] -> bool
   (** Evaluates to [true] if the given status is either from type
       {!Dream.informational}, or is in the range [`Status 100] — [`Status 199]. *)
-  
-  val is_successful : [< status ] -> bool
+
+  val is_successful : [< status] -> bool
   (** Like {!Dream.is_informational}, but for type {!Dream.successful} and numeric
       codes [2xx]. *)
-  
-  val is_redirection : [< status ] -> bool
+
+  val is_redirection : [< status] -> bool
   (** Like {!Dream.is_informational}, but for type {!Dream.redirection} and
       numeric codes [3xx]. *)
-  
-  val is_client_error : [< status ] -> bool
+
+  val is_client_error : [< status] -> bool
   (** Like {!Dream.is_informational}, but for type {!Dream.client_error} and
       numeric codes [4xx]. *)
-  
-  val is_server_error : [< status ] -> bool
+
+  val is_server_error : [< status] -> bool
   (** Like {!Dream.is_informational}, but for type {!Dream.server_error} and
       numeric codes [5xx]. *)
-  
-  val status_codes_equal : [< status ] -> [< status ] -> bool
+
+  val status_codes_equal : [< status] -> [< status] -> bool
   (** Compares two status codes, such that equal codes are detected even if one is
       represented as a number. For example,
   
       {[
         Dream.status_codes_equal `Not_Found (`Status 404) = true
       ]} *)
-  
-  val normalize_status : [< status ] -> status
+
+  val normalize_status : [< status] -> status
   (** Converts status codes represented as numbers to variants. Status codes
       generated by Dream are always normalized.
   
       {[
         Dream.normalize_status (`Status 404) = `Not_Found
       ]} *)
-  
-  
-  
+
   (** {1 Requests} *)
-  
+
   val client : request -> string
   (** Client sending the request. For example, ["127.0.0.1:56001"]. *)
-  
+
   val https : request -> bool
   (** Whether the request was sent over HTTPS. *)
-  
+
   val method_ : request -> method_
   (** Request method. For example, [`GET]. *)
-  
+
   val target : request -> string
   (** Request target. For example, ["/foo/bar"]. *)
-  
+
   (**/**)
+
   val prefix : request -> string
+
   (**/**)
-  
-  (* TODO Convert query string functions to the new t-first style. *)
-  
-  val query : string -> request -> string option
+
+  val query : request -> string -> string option
   (** First query parameter with the given name. See
       {{:https://tools.ietf.org/html/rfc3986#section-3.4} RFC 3986 §3.4} and
       example
       {{:https://github.com/aantron/dream/tree/master/example/w-query#files}
       [w-query]}. *)
-  
-  val queries : string -> request -> string list
+
+  val queries : request -> string -> string list
   (** All query parameters with the given name. *)
-  
+
   val all_queries : request -> (string * string) list
   (** Entire query string as a name-value list. *)
-  
-  
-  
+
   (** {1 Responses} *)
-  
+
   val response :
-    ?status:[< status ] ->
+    ?status:[< status] ->
     ?code:int ->
     ?headers:(string * string) list ->
-      string -> response
+    string ->
+    response
   (** Creates a new {!type-response} with the given string as body. [~code] and
       [~status] are two ways to specify the {!type-status} code, which is [200 OK]
       by default. The headers are empty by default.
@@ -421,20 +401,22 @@ module Make
       [Content-Type:] header using [~headers] or {!Dream.add_header}, or use a
       wrapper like {!Dream.html}. The modern [Content-Type:] for HTML is
       [text/html; charset=utf-8]. See {!Dream.text_html}. *)
-  
+
   val respond :
-    ?status:[< status ] ->
+    ?status:[< status] ->
     ?code:int ->
     ?headers:(string * string) list ->
-      string -> response promise
+    string ->
+    response promise
   (** Same as {!Dream.val-response}, but the new {!type-response} is wrapped in a
       {!type-promise}. *)
-  
+
   val html :
-    ?status:[< status ] ->
+    ?status:[< status] ->
     ?code:int ->
     ?headers:(string * string) list ->
-      string -> response promise
+    string ->
+    response promise
   (** Same as {!Dream.respond}, but adds [Content-Type: text/html; charset=utf-8].
       See {!Dream.text_html}.
   
@@ -443,20 +425,23 @@ module Make
       {{:https://github.com/aantron/dream/tree/master/example/w-content-security-policy#files}
       [w-content-security-policy]}. These headers are completely optional, but
       they can provide an extra layer of defense for a mature app. *)
-  
+
   val json :
-    ?status:[< status ] ->
+    ?status:[< status] ->
     ?code:int ->
     ?headers:(string * string) list ->
-      string -> response promise
+    string ->
+    response promise
   (** Same as {!Dream.respond}, but adds [Content-Type: application/json]. See
       {!Dream.application_json}. *)
-  
+
   val redirect :
-    ?status:[< redirection ] ->
+    ?status:[< redirection] ->
     ?code:int ->
     ?headers:(string * string) list ->
-      request -> string -> response promise
+    request ->
+    string ->
+    response promise
   (** Creates a new {!type-response}. Adds a [Location:] header with the given
       string. The default status code is [303 See Other], for a temporary
       redirection. Use [~status:`Moved_Permanently] or [~code:301] for a permanent
@@ -467,79 +452,109 @@ module Make
   
       The {!type-request} is used for retrieving the site prefix, if the string is
       an absolute path. Most applications don't have a site prefix. *)
-  
-  val empty :
-    ?headers:(string * string) list ->
-      status -> response promise
+
+  val empty : ?headers:(string * string) list -> status -> response promise
   (** Same as {!Dream.val-response} with the empty string for a body. *)
-  
-  val stream :
-    ?status:[< status ] ->
-    ?code:int ->
-    ?headers:(string * string) list ->
-      (response -> unit promise) -> response promise
-  (** Same as {!Dream.val-respond}, but calls {!Dream.set_stream} internally to
-      prepare the response for stream writing, and then runs the callback
-      asynchronously to do it. See example
-      {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
-      [j-stream]}.
-  
-      {[
-        fun request ->
-          Dream.stream (fun response ->
-            let%lwt () = Dream.write response "foo" in
-            Dream.close_stream response)
-      ]} *)
-  
+
+  type websocket
+  (** A WebSocket connection. See {{:https://tools.ietf.org/html/rfc6455} RFC
+    6455} and
+    {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API} MDN}. *)
+
   val websocket :
     ?headers:(string * string) list ->
-      (response -> unit promise) -> response promise
+    ?close:bool ->
+    (websocket -> unit promise) ->
+    response promise
   (** Creates a fresh [101 Switching Protocols] response. Once this response is
-      returned to Dream's HTTP layer, the callback is passed a new
-      {!type-websocket}, and the application can begin using it. See example
-      {{:https://github.com/aantron/dream/tree/master/example/k-websocket#files}
-      [k-websocket]} \[{{:http://dream.as/k-websocket} playground}\].
-  
-      {[
-        let my_handler = fun request ->
-          Dream.websocket (fun websocket ->
-            let%lwt () = Dream.send websocket "Hello, world!" in
-            Dream.close_websocket websocket);
-      ]} *)
-  
+    returned to Dream's HTTP layer, the callback is passed a new
+    {!type-websocket}, and the application can begin using it. See example
+    {{:https://github.com/aantron/dream/tree/master/example/k-websocket#files}
+    [k-websocket]} \[{{:http://dream.as/k-websocket} playground}\].
+
+    {[
+      let my_handler = fun request ->
+        Dream.websocket (fun websocket ->
+          let%lwt () = Dream.send websocket "Hello, world!");
+    ]}
+
+    [Dream.websocket] automatically closes the WebSocket when the callback
+    returns or raises an exception. Pass [~close:false] to suppress this
+    behavior. *)
+
+  type text_or_binary =
+    [ `Text
+    | `Binary ]
+  (** See {!send} and {!receive_fragment}. *)
+
+  type end_of_message =
+    [ `End_of_message
+    | `Continues ]
+  (** See {!send} and {!receive_fragment}. *)
+
+  val send :
+    ?text_or_binary:[< text_or_binary] ->
+    ?end_of_message:[< end_of_message] ->
+    websocket ->
+    string ->
+    unit promise
+  (** Sends a single WebSocket message. The WebSocket is ready another message
+      when the promise resolves.
+
+      With [~text_or_binary:`Text], the default, the message is interpreted as a
+      UTF-8 string. The client will receive it transcoded to JavaScript's UTF-16
+      representation.
+
+      With [~text_or_binary:`Binary], the message will be received unmodified, as
+      either a [Blob] or an [ArrayBuffer]. See
+      {{:https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/binaryType}
+      MDN, [WebSocket.binaryType]}.
+
+      [~end_of_message] is ignored for now, as the WebSocket library underlying
+      Dream does not support sending message fragments yet. *)
+
+  val receive : websocket -> string option promise
+  (** Receives a message. If the WebSocket is closed before a complete message
+      arrives, the result is [None]. *)
+
+  val receive_fragment :
+    websocket -> (string * text_or_binary * end_of_message) option promise
+  (** Receives a single fragment of a message, streaming it. *)
+
+  val close_websocket : ?code:int -> websocket -> unit promise
+  (** Closes the WebSocket. [~code] is usually not necessary, but is needed for
+      some protocols based on WebSockets. See
+      {{:https://tools.ietf.org/html/rfc6455#section-7.4} RFC 6455 §7.4}. *)
+
   val status : response -> status
   (** Response {!type-status}. For example, [`OK]. *)
-  
-  
-  
+
   (** {1 Headers} *)
-  
+
   val header : 'a message -> string -> string option
   (** First header with the given name. Header names are case-insensitive. See
       {{:https://tools.ietf.org/html/rfc7230#section-3.2} RFC 7230 §3.2} and
       {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers} MDN}. *)
-  
+
   val headers : 'a message -> string -> string list
   (** All headers with the given name. *)
-  
+
   val all_headers : 'a message -> (string * string) list
   (** Entire header set as name-value list. *)
-  
+
   val has_header : 'a message -> string -> bool
   (** Whether the message has a header with the given name. *)
-  
+
   val add_header : 'a message -> string -> string -> unit
   (** Appends a header with the given name and value. Does not remove any existing
       headers with the same name. *)
-  
+
   val drop_header : 'a message -> string -> unit
   (** Removes all headers with the given name. *)
-  
+
   val set_header : 'a message -> string -> string -> unit
   (** Equivalent to {!Dream.drop_header} followed by {!Dream.add_header}. *)
-  
-  
-  
+
   (** {1 Cookies}
   
       {!Dream.set_cookie} and {!Dream.cookie} are designed for round-tripping
@@ -564,9 +579,9 @@ module Make
       {!Dream.set_cookie} has a large number of optional arguments for tweaking
       the inferred security settings. If you use them, pass the same arguments to
       {!Dream.cookie} to automatically undo the result. *)
-  
+
   val set_cookie :
-    ?prefix:[< `Host | `Secure ] option ->
+    ?prefix:[< `Host | `Secure] option ->
     ?encrypt:bool ->
     ?expires:float ->
     ?max_age:float ->
@@ -574,8 +589,12 @@ module Make
     ?path:string option ->
     ?secure:bool ->
     ?http_only:bool ->
-    ?same_site:[< `Strict | `Lax | `None ] option ->
-      response -> string -> string -> request -> unit
+    ?same_site:[< `Strict | `Lax | `None] option ->
+    response ->
+    request ->
+    string ->
+    string ->
+    unit
   (** Appends a [Set-Cookie:] header to the {!type-response}. Infers the most
       secure defaults from the {!type-request}.
   
@@ -651,28 +670,33 @@ module Make
   
       {!Dream.to_set_cookie} is a “raw” version of this function that does not do
       any inference. *)
-  
-    val drop_cookie :
-      ?prefix:[< `Host | `Secure ] option ->
-      ?domain:string ->
-      ?path:string option ->
-      ?secure:bool ->
-      ?http_only:bool ->
-      ?same_site:[< `Strict | `Lax | `None ] option ->
-        response -> string -> request -> unit
+
+  val drop_cookie :
+    ?prefix:[< `Host | `Secure] option ->
+    ?domain:string ->
+    ?path:string option ->
+    ?secure:bool ->
+    ?http_only:bool ->
+    ?same_site:[< `Strict | `Lax | `None] option ->
+    response ->
+    request ->
+    string ->
+    unit
   (** Deletes the given cookie.
   
       This function works by calling {!Dream.set_cookie}, and setting the cookie
       to expire in the past. Pass all the same optional values that you would pass
       to {!Dream.set_cookie}, to make sure that the same cookie is deleted. *)
-  
+
   val cookie :
-    ?prefix:[< `Host | `Secure ] option ->
+    ?prefix:[< `Host | `Secure] option ->
     ?decrypt:bool ->
     ?domain:string ->
     ?path:string option ->
     ?secure:bool ->
-      request -> string -> string option
+    request ->
+    string ->
+    string option
   (** First cookie with the given name. See example
       {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
       [c-cookie]}.
@@ -685,47 +709,22 @@ module Make
       cookie. This will allow {!Dream.cookie} to infer the cookie name prefix,
       implementing a transparent cookie round trip with the most secure attributes
       applicable. *)
-  
+
   val all_cookies : request -> (string * string) list
   (** All cookies, with raw names and values. *)
-  
-  
-  
+
   (** {1 Bodies} *)
-  
+
   val body : 'a message -> string promise
   (** Retrieves the entire body. See example
       {{:https://github.com/aantron/dream/tree/master/example/6-echo#files}
       [6-echo]}. *)
-  
+
   val set_body : 'a message -> string -> unit
   (** Replaces the body. *)
-  
-  (** {2 Streaming} *)
-  
-  val read : 'a message -> string option promise
-  (** Retrieves a body chunk. The chunk is not buffered, thus it can only be read
-      once. See example
-      {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
-      [j-stream]}. *)
-  (* TODO Document difference between receiving a request and receiving on a
-      WebSocket. *)
-  
-  
-  val write : ?kind:[< `Text | `Binary ] -> response -> string -> unit promise
-  (** Streams out the string. The promise is fulfilled when the response can
-      accept more writes. *)
-  (* TODO Document clearly which of the writing functions can raise exceptions. *)
-  
-  val flush : response -> unit promise
-  (** Flushes write buffers. Data is sent to the client. *)
-  
-  val close : ?code:int -> 'a message -> unit promise
-  (** Finishes the response stream. *)
-  (* TODO Fix comment. *)
-  
+
   (** {2 Low-level streaming} *)
-  
+
   type buffer =
     (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
   (** Byte arrays in the C heap. See
@@ -738,21 +737,68 @@ module Make
       - {{:https://ocsigen.org/lwt/latest/api/Lwt_bytes} [Lwt_bytes.t]} in Lwt.
       - {{:https://github.com/mirage/ocaml-cstruct/blob/9a8b9a79bdfa2a1b8455bc26689e0228cc6fac8e/lib/cstruct.mli#L139}
         [Cstruct.buffer]} in Cstruct. *)
-  
+
   (* TODO What should the body stream retrieval function be called? *)
   (* TODO Remove old functions from signature. *)
   (* TODO Should there be a section for this somewhere? Probably "low-level
       streaming" should be promoted to a top-level section, Streaming. *)
+
+  (** {2 Streaming} *)
+
   type stream
-  
+
+  val body_stream : request -> stream
+  (** A stream that can be used to gradually read the request's body. *)
+
+  val stream :
+    ?status:[< status] ->
+    ?code:int ->
+    ?headers:(string * string) list ->
+    ?close:bool ->
+    (stream -> unit promise) ->
+    response promise
+  (** Creates a response with a {!type-stream} open for writing, and passes the
+    stream to the callback when it is ready. See example
+    {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
+    [j-stream]}.
+
+    {[
+      fun request ->
+        Dream.stream (fun stream ->
+          Dream.write stream "foo")
+    ]}
+
+    [Dream.stream] automatically closes the stream when the callback returns or
+    raises an exception. Pass [~close:false] to suppress this behavior. *)
+
+  val read : stream -> string option promise
+  (** Retrieves a body chunk. See example
+      {{:https://github.com/aantron/dream/tree/master/example/j-stream#files}
+      [j-stream]}. *)
+  (* TODO Document difference between receiving a request and receiving on a
+     WebSocket. *)
+
+  val write : stream -> string -> unit promise
+  (** Streams out the string. The promise is fulfilled when the response can
+      accept more writes. *)
+  (* TODO Document clearly which of the writing functions can raise exceptions. *)
+
+  val flush : stream -> unit promise
+  (** Flushes the stream's write buffer. Data is sent to the client. *)
+
+  val close : stream -> unit promise
+  (** Closes the stream. *)
+
   val client_stream : 'a message -> stream
   val server_stream : 'a message -> stream
+
   (* TODO Document that this is for middlewares that are transforming a response
       stream or a WebSocket. *)
   val set_client_stream : 'a message -> stream -> unit
+
   (* TODO Normalize with with_stream, or add a separate with_server_stream. *)
   val set_server_stream : 'a message -> stream -> unit
-  
+
   (* TODO Probably even close can be made optional. exn can be made optional. *)
   (* TODO Argument order? *)
   val read_stream :
@@ -763,36 +809,54 @@ module Make
     pong:(buffer -> int -> int -> unit) ->
     close:(int -> unit) ->
     exn:(exn -> unit) ->
-      unit
+    unit
   (** Waits for the next stream event, and calls:
   
       - [~buffer] with an offset and length, if a {!type-buffer} is written,
       - [~close] if close is requested, and
       - [~exn] to report an exception. *)
-  
+
   val write_stream :
-    stream -> buffer -> int -> int -> bool -> bool -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
-  
+    stream ->
+    buffer ->
+    int ->
+    int ->
+    bool ->
+    bool ->
+    close:(int -> unit) ->
+    exn:(exn -> unit) ->
+    (unit -> unit) ->
+    unit
+
   val flush_stream :
     stream -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
-  
+
   val ping_stream :
-    stream -> buffer -> int -> int -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
-  
+    stream ->
+    buffer ->
+    int ->
+    int ->
+    close:(int -> unit) ->
+    exn:(exn -> unit) ->
+    (unit -> unit) ->
+    unit
+
   val pong_stream :
-    stream -> buffer -> int -> int -> close:(int -> unit) -> exn:(exn -> unit) -> (unit -> unit) -> unit
-  
-  val close_stream :
-    stream -> int -> unit
-  
-  val abort_stream :
-    stream -> exn -> unit
+    stream ->
+    buffer ->
+    int ->
+    int ->
+    close:(int -> unit) ->
+    exn:(exn -> unit) ->
+    (unit -> unit) ->
+    unit
+
+  val close_stream : stream -> int -> unit
+  val abort_stream : stream -> exn -> unit
   (* TODO Line widths above. *)
-  
+
   (* TODO Ergonomics of this stream surface API. *)
-  
-  
-  
+
   (** {1 JSON}
   
       Dream presently recommends using
@@ -803,7 +867,7 @@ module Make
       See example
       {{:https://github.com/aantron/dream/tree/master/example/e-json#files}
       [e-json]}. *)
-  
+
   val origin_referrer_check : middleware
   (** CSRF protection for AJAX requests. Either the method must be [`GET] or
       [`HEAD], or:
@@ -828,9 +892,7 @@ module Make
       For more thorough protection, generate CSRF tokens with {!Dream.csrf_token},
       send them to the client (for instance, in [<meta>] tags of a single-page
       application), and require their presence in an [X-CSRF-Token:] header. *)
-  
-  
-  
+
   (** {1 Forms}
   
       {!Dream.form_tag} and {!Dream.val-form} round-trip secure forms.
@@ -854,16 +916,15 @@ module Make
       See example
       {{:https://github.com/aantron/dream/tree/master/example/d-form#files}
       [d-form]} \[{{:http://dream.as/d-form} playground}\]. *)
-  
-  type 'a form_result = [
-    | `Ok            of 'a
-    | `Expired       of 'a * float
+
+  type 'a form_result =
+    [ `Ok of 'a
+    | `Expired of 'a * float
     | `Wrong_session of 'a
     | `Invalid_token of 'a
     | `Missing_token of 'a
-    | `Many_tokens   of 'a
-    | `Wrong_content_type
-  ]
+    | `Many_tokens of 'a
+    | `Wrong_content_type ]
   (** Form CSRF checking results, in order from least to most severe. See
       {!Dream.val-form} and example
       {{:https://github.com/aantron/dream/tree/master/example/d-form#files}
@@ -876,7 +937,7 @@ module Make
       [`Many_tokens], [`Wrong_content_type] correspond to bugs, suspicious
       activity, or tokens so old that decryption keys have since been rotated on
       the server. *)
-  
+
   val form : ?csrf:bool -> request -> (string * string) list form_result promise
   (** Parses the request body as a form. Performs CSRF checks. Use
       {!Dream.form_tag} in a template to transparently generate forms that will
@@ -918,11 +979,10 @@ module Make
       constructors of {!Dream.type-form_result}, usually indicate either bugs or
       attacks. It's usually fine to respond to all of them with [400 Bad
       Request]. *)
-  
+
   (** {2 Upload} *)
-  
-  type multipart_form =
-    (string * ((string option * string) list)) list
+
+  type multipart_form = (string * (string option * string) list) list
   (** Submitted file upload forms, [<form enctype="multipart/form-data">]. For
       example, if a form
   
@@ -967,7 +1027,7 @@ module Make
       {{:https://cheatsheetseries.owasp.org/cheatsheets/File_Upload_Cheat_Sheet.html}
       OWASP {i File Upload Cheat Sheet}} for security precautions for upload
       forms. *)
-  
+
   val multipart : ?csrf:bool -> request -> multipart_form form_result promise
   (** Like {!Dream.form}, but also reads files, and [Content-Type:] must be
       [multipart/form-data]. The [<form>] tag and CSRF token can be generated in a
@@ -988,10 +1048,10 @@ module Make
       {!Dream.multipart} reads entire files into memory, so it is only suitable
       for prototyping, or with yet-to-be-added file size and count limits. See
       {!Dream.val-upload} below for a streaming version. *)
-  
+
   (** {2 Streaming uploads} *)
-  
-  type part = string option * string option * ((string * string) list)
+
+  type part = string option * string option * (string * string) list
   (** Upload form parts.
   
       A value [Some (name, filename, headers)] received by {!Dream.val-upload}
@@ -1000,7 +1060,7 @@ module Make
   
       Note that, in the general case, [filename] and [headers] are not reliable.
       [name] is the form field name. *)
-  
+
   val upload : request -> part option promise
   (** Retrieves the next upload part.
   
@@ -1019,10 +1079,10 @@ module Make
       - Use {{:https://developer.mozilla.org/en-US/docs/Web/API/FormData}
         [FormData]} in the client to submit [multipart/form-data] by AJAX, and
         include a custom header. *)
-  
+
   val upload_part : request -> string option promise
   (** Retrieves a part chunk. *)
-  
+
   (** {2 CSRF tokens}
   
       It's usually not necessary to handle CSRF tokens directly.
@@ -1035,13 +1095,12 @@ module Make
       defense-in-depth purposes. See
       {{:https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html}
       OWASP {i Cross-Site Request Forgery Prevention Cheat Sheet}}. *)
-  
-  type csrf_result = [
-    | `Ok
+
+  type csrf_result =
+    [ `Ok
     | `Expired of float
     | `Wrong_session
-    | `Invalid
-  ]
+    | `Invalid ]
   (** CSRF token verification outcomes.
   
       [`Expired] and [`Wrong_session] can occur in normal usage, when a user's
@@ -1054,20 +1113,18 @@ module Make
       by normal users. [`Invalid] usually corresponds to bugs or attacks.
       [`Invalid] can also occur for very old tokens after old keys are no longer
       in use on the server. *)
-  
+
   val csrf_token : ?valid_for:float -> request -> string
   (** Returns a fresh CSRF token bound to the given request's and signed with the
       [~secret] given to {!Dream.run}. [~valid_for] is the token's lifetime, in
       seconds. The default value is one hour ([3600.]). Dream uses signed tokens
       that are not stored server-side. *)
-  
+
   val verify_csrf_token : request -> string -> csrf_result promise
   (** Checks that the CSRF token is valid for the {!type-request}'s session. *)
-  
+
   val csrf_tag : request -> string
 
-  
-  
   (** {1 Templates}
   
       Dream includes a template preprocessor that allows interleaving OCaml and
@@ -1152,13 +1209,15 @@ module Make
       HTML text and quoted attribute values. It does not offer XSS protection in
       unquoted attribute values, CSS in [<style>] tags, or literal JavaScript in
       [<script>] tags. *)
-  
+
   val form_tag :
-    ?method_:[< method_ ] ->
+    ?method_:[< method_] ->
     ?target:string ->
-    ?enctype:[< `Multipart_form_data ] ->
+    ?enctype:[< `Multipart_form_data] ->
     ?csrf_token:bool ->
-      action:string -> request -> string
+    action:string ->
+    request ->
+    string
   (** Generates a [<form>] tag and an [<input>] tag with a CSRF token, suitable
       for use with {!Dream.val-form} and {!Dream.val-multipart}. For example, in
       a template,
@@ -1186,15 +1245,13 @@ module Make
       Pass [~enctype:`Multipart_form_data] for a file upload form.
   
       [~csrf_token:false] suppresses generation of the [dream.csrf] field. *)
-  
-  
-  
+
   (** {1 Middleware}
   
       Interesting built-in middlewares are scattered throughout the various
       sections of these docs, according to where they are relevant. This section
       contains only generic middleware combinators. *)
-  
+
   val no_middleware : middleware
   (** Does nothing but call its inner handler. Useful for disabling middleware
       conditionally during application startup:
@@ -1205,7 +1262,7 @@ module Make
         else
           Dream.no_middleware
       ]} *)
-  
+
   val pipeline : middleware list -> middleware
   (** Combines a sequence of middlewares into one, such that these two lines are
       equivalent:
@@ -1216,79 +1273,75 @@ module Make
       {v
                   middleware_1 @@ middleware_2 @@ handler
       v} *)
-  
-  
-  
+
   (** {1 Routing} *)
-  
-  val router : route list -> middleware
-  (** Creates a router. Besides interpreting routes, a router is a middleware
-      which calls its next handler if none of its routes match the request. Route
-      components starting with [:] are parameters, which can be retrieved with
-      {!Dream.param}. See example
-      {{:https://github.com/aantron/dream/tree/master/example/3-router#files}
-      [3-router]} \[{{:http://dream.as/3-router} playground}\].
-  
-      {[
-        let () =
-          Dream.run
-          @@ Dream.router [
-            Dream.get "/echo/:word" @@ fun request ->
-              Dream.html (Dream.param "word" request);
-          ]
-          @@ Dream.not_found
-      ]}
-  
-      {!Dream.scope} is the main form of site composition. However, Dream also
-      supports full subsites with [**]:
-  
-      {[
-        let () =
-          Dream.run
-          @@ Dream.router [
-            Dream.get "/static/**" @@ Dream.static "www/static";
-          ]
-          @@ Dream.not_found
-      ]}
-  
-      [**] causes the request's path to be trimmed by the route prefix, and the
-      request's prefix to be extended by it. It is mainly useful for “mounting”
-      {!Dream.static} as a subsite.
-  
-      It can also be used as an escape hatch to convert a handler, which may
-      include its own router, into a subsite. However, it is better to compose
-      sites with routes and {!Dream.scope} rather than opaque handlers and [**],
-      because, in the future, it may be possible to query routes for site
-      structure metadata. *)
-  
-  val get     : string -> handler -> route
+
+  val router : route list -> handler
+  (** Creates a router. If none of the routes match the request, the router
+    returns {!Dream.not_found}. Route components starting with [:] are
+    parameters, which can be retrieved with {!Dream.param}. See example
+    {{:https://github.com/aantron/dream/tree/master/example/3-router#files}
+    [3-router]} \[{{:http://dream.as/3-router} playground}\].
+
+    {[
+      let () =
+        Dream.run
+        @@ Dream.router [
+          Dream.get "/echo/:word" @@ fun request ->
+            Dream.html (Dream.param "word" request);
+        ]
+    ]}
+
+    {!Dream.scope} is the main form of site composition. However, Dream also
+    supports full subsites with [**]:
+
+    {[
+      let () =
+        Dream.run
+        @@ Dream.router [
+          Dream.get "/static/**" @@ Dream.static "www/static";
+        ]
+    ]}
+
+    [**] causes the request's path to be trimmed by the route prefix, and the
+    request's prefix to be extended by it. It is mainly useful for “mounting”
+    {!Dream.static} as a subsite.
+
+    It can also be used as an escape hatch to convert a handler, which may
+    include its own router, into a subsite. However, it is better to compose
+    sites with routes and {!Dream.scope} rather than opaque handlers and [**],
+    because, in the future, it may be possible to query routes for site
+    structure metadata. *)
+
+  val get : string -> handler -> route
   (** Forwards [`GET] requests for the given path to the handler.
   
       {[
         Dream.get "/home" home_template
       ]} *)
-  
-  val post    : string -> handler -> route
-  val put     : string -> handler -> route
-  val delete  : string -> handler -> route
-  val head    : string -> handler -> route
+
+  val post : string -> handler -> route
+  val put : string -> handler -> route
+  val delete : string -> handler -> route
+  val head : string -> handler -> route
   val connect : string -> handler -> route
   val options : string -> handler -> route
-  val trace   : string -> handler -> route
-  val patch   : string -> handler -> route
+  val trace : string -> handler -> route
+
+  val patch : string -> handler -> route
   (** Like {!Dream.get}, but for each of the other {{!type-method_} methods}. *)
-  
-  val any     : string -> handler -> route
+
+  val any : string -> handler -> route
   (** Like {!Dream.get}, but does not check the method. *)
-  
+
   val not_found : handler
   (** Always responds with [404 Not Found]. *)
-  
+
   (* :((( *)
   val param : request -> string -> string
   (** Retrieves the path parameter. If it is missing, {!Dream.param} raises an
       exception — the program is buggy. *)
-  
+
   val scope : string -> middleware list -> route list -> route
   (** Groups routes under a common path prefix and middlewares. Middlewares are
       run only if a route matches.
@@ -1317,7 +1370,7 @@ module Make
       ]}
   
       Scopes can be nested. *)
-  
+
   val no_route : route
   (** A dummy value of type {!type-route} that is completely ignored by the
       router. Useful for disabling routes conditionally during application start:
@@ -1330,14 +1383,10 @@ module Make
             Dream.no_route;
         ]
       ]} *)
-  
-  
-  
+
   (** {1 Static files} *)
-  
-  val static :
-    loader:(string -> string -> handler) ->
-      string -> handler
+
+  val static : loader:(string -> string -> handler) -> string -> handler
   (** Serves static files from a local directory. See example
       {{:https://github.com/aantron/dream/tree/master/example/f-static#files}
       [f-static]}.
@@ -1367,15 +1416,13 @@ module Make
       The default loader is {!Dream.from_filesystem}. See example
       {{:https://github.com/aantron/dream/tree/master/example/w-one-binary#files}
       [w-one-binary]} for a loader that serves files from memory instead. *)
-  
+
   val mime_lookup : string -> (string * string) list
   (** Returns a [Content-Type:] header based on the given filename. This is mostly
       a wrapper around {{:https://github.com/mirage/ocaml-magic-mime} magic-mime}.
       However, if the result is [text/html], {!Dream.mime_lookup} replaces it with
       [text/html; charset=utf-8], so as to match {!Dream.html}. *)
-  
-  
-  
+
   (** {1 Sessions}
   
       Dream's default sessions contain string-to-string dictionaries for
@@ -1409,45 +1456,42 @@ module Make
       See example
       {{:https://github.com/aantron/dream/tree/master/example/b-session#files}
       [b-session]} \[{{:http://dream.as/b-session} playground}\]. *)
-  
+
   val session : string -> request -> string option
   (** Value from the request's session. *)
-  
+
   val put_session : string -> string -> request -> unit promise
   (** Mutates a value in the request's session. The back end may commit the value
       to storage immediately, so this function returns a promise. *)
-  
+
   val all_session_values : request -> (string * string) list
   (** Full session dictionary. *)
-  
+
   val invalidate_session : request -> unit promise
   (** Invalidates the request's session, replacing it with a fresh, empty
       pre-session. *)
-  
+
   (** {2 Back ends} *)
-  
+
   val memory_sessions : ?lifetime:float -> middleware
   (** Stores sessions in server memory. Passes session IDs to clients in cookies.
       Session data is lost when the server process exits. *)
-  
+
   val cookie_sessions : ?lifetime:float -> middleware
   (** Stores sessions in encrypted cookies. Pass {!Dream.run} [~secret] to be able
       to decrypt cookies from previous server runs. *)
-  
-  
+
   (** {2 Metadata} *)
-  
+
   val session_id : request -> string
   (** Secret value used to identify a client. *)
-  
+
   val session_label : request -> string
   (** Tracing label suitable for printing to logs. *)
-  
+
   val session_expires_at : request -> float
   (** Time at which the session will expire. *)
-  
-  
-  
+
   (** {1 Flash messages}
   
       Flash messages are short strings which are stored in cookies during one
@@ -1455,19 +1499,16 @@ module Make
       to provide form feedback across a redirect. See example
       {{:https://github.com/aantron/dream/tree/master/example/w-flash#files}
       [w-flash]} \[{{:http://dream.as/w-flash} playground}\]. *)
-  
+
   val flash_messages : middleware
   (** Implements storing flash messages in cookies. *)
-  
+
   val flash : request -> (string * string) list
   (** The request's flash messages. *)
-  
+
   val put_flash : request -> string -> string -> unit
   (** Adds a flash message to the request. *)
-  
-  
-  
-  
+
   (** {1 Logging}
   
       Dream uses the {{:https://erratique.ch/software/logs/doc/Logs/index.html}
@@ -1481,12 +1522,12 @@ module Make
       {{:https://cheatsheetseries.owasp.org/cheatsheets/Logging_Cheat_Sheet.html}
       OWASP {i Logging Cheat Sheet}} for a survey of security topics related to
       logging. *)
-  
+
   val logger : middleware
   (** Logs and times requests. Time spent logging is included. See example
       {{:https://github.com/aantron/dream/tree/master/example/2-middleware#files}
       [2-middleware]} \[{{:http://dream.as/2-middleware} playground}\]. *)
-  
+
   val log : ('a, Format.formatter, unit, unit) format4 -> 'a
   (** Formats a message and logs it. Disregard the obfuscated type: the first
       argument is a format string as described in the standard library modules
@@ -1502,23 +1543,21 @@ module Make
         Dream.log "Counter is now: %i" counter;
         Dream.log "Client: %s" (Dream.client request);
       ]} *)
-  
+
   type ('a, 'b) conditional_log =
-    ((?request:request ->
-      ('a, Format.formatter, unit, 'b) format4 -> 'a) -> 'b) ->
-      unit
+    ((?request:request -> ('a, Format.formatter, unit, 'b) format4 -> 'a) -> 'b) ->
+    unit
   (** Loggers. This type is difficult to read — instead, see {!Dream.val-error} for
       usage. *)
-  
-  type log_level = [
-    | `Error
+
+  type log_level =
+    [ `Error
     | `Warning
     | `Info
-    | `Debug
-  ]
+    | `Debug ]
   (** Log levels, in order from most urgent to least. *)
-  
-  val error     : ('a, unit) conditional_log
+
+  val error : ('a, unit) conditional_log
   (** Formats a message and writes it to the log at level [`Error]. The inner
       formatting function is called only if the {{!initialize_log} current log
       level} is [`Error] or higher. See example
@@ -1533,21 +1572,22 @@ module Make
       Pass the optional argument [~request] to {!Dream.val-error} to associate the
       message with a specific request. If not passed, {!Dream.val-error} will try
       to guess the request. This usually works, but not always. *)
-  
-  val warning   : ('a, unit) conditional_log
-  val info      : ('a, unit) conditional_log
-  val debug     : ('a, unit) conditional_log
+
+  val warning : ('a, unit) conditional_log
+  val info : ('a, unit) conditional_log
+
+  val debug : ('a, unit) conditional_log
   (** Like {!Dream.val-error}, but for each of the other {{!log_level} log
       levels}. *)
-  
+
   type sub_log = {
-    error   : 'a. ('a, unit) conditional_log;
+    error : 'a. ('a, unit) conditional_log;
     warning : 'a. ('a, unit) conditional_log;
-    info    : 'a. ('a, unit) conditional_log;
-    debug   : 'a. ('a, unit) conditional_log;
+    info : 'a. ('a, unit) conditional_log;
+    debug : 'a. ('a, unit) conditional_log;
   }
   (** Sub-logs. See {!Dream.val-sub_log} right below. *)
-  
+
   val sub_log : ?level:[< log_level] -> string -> sub_log
   (** Creates a new sub-log with the given name. For example,
   
@@ -1569,13 +1609,14 @@ module Make
       See [README] of example
       {{:https://github.com/aantron/dream/tree/master/example/a-log#files}
       [a-log]}. *)
-  
+
   val initialize_log :
     ?backtraces:bool ->
     ?async_exception_hook:bool ->
-    ?level:[< log_level ] ->
+    ?level:[< log_level] ->
     ?enable:bool ->
-      unit -> unit
+    unit ->
+    unit
   (** Initializes Dream's log with the given settings.
   
       Dream initializes its logging back end lazily. This is so that if a Dream
@@ -1599,12 +1640,10 @@ module Make
   
       - [~enable:false] disables Dream logging completely. This can help sanitize
         output during testing. *)
-  
-  val set_log_level : string -> [< log_level ] -> unit
+
+  val set_log_level : string -> [< log_level] -> unit
   (** Set the log level threshold of the given sub-log. *)
-  
-  
-  
+
   (** {1 Errors}
   
       Dream passes all errors to a single error handler, including...
@@ -1629,24 +1668,11 @@ module Make
   
       For full control over error handling, including logging, you can define an
       {!type-error_handler} directly. *)
-  
+
   type error = {
-    condition : [
-      | `Response of response
-      | `String of string
-      | `Exn of exn
-    ];
-    layer : [
-      | `App
-      | `HTTP
-      | `HTTP2
-      | `TLS
-      | `WebSocket
-    ];
-    caused_by : [
-      | `Server
-      | `Client
-    ];
+    condition : [`Response of response | `String of string | `Exn of exn];
+    layer : [`App | `HTTP | `HTTP2 | `TLS | `WebSocket];
+    caused_by : [`Server | `Client];
     request : request option;
     response : response option;
     client : string option;
@@ -1726,7 +1752,7 @@ module Make
       The default handler calls the error template only if [will_send_response] is
       [true].
       }} *)
-  
+
   type error_handler = error -> response option promise
   (** Error handlers log errors and convert them into responses. Ignore if using
       {!Dream.error_template}.
@@ -1741,7 +1767,7 @@ module Make
       The behavior of Dream's default error handler is described at
       {!Dream.type-error}. *)
   (* TODO Get rid of the option? *)
-  
+
   val error_template :
     (error -> string -> response -> response promise) -> error_handler
   (** Builds an {!error_handler} from a template. See example
@@ -1783,29 +1809,13 @@ module Make
   
       If the template itself raises an exception or rejects, an empty [500
       Internal Server Error] will be sent in contexts that require a response. *)
-  
+
   val catch : (error -> response promise) -> middleware
   (** Forwards exceptions, rejections, and [4xx], [5xx] responses from the
       application to the error handler. See {!section-errors}. *)
   (* TODO Error handler should not return an option, and then the type can be
       used here. *)
-  
-  val lowercase_headers : middleware
-  (** Lowercases response headers for HTTP/2 requests. *)
-  
-  val content_length : middleware
-  (** If the request has {!Dream.version} [(1, _)], then...
-  
-      - if the response does not have [Content-Length:] and the body is a string,
-        sets [Content-Length:] to the string's length, or
-      - if the response does not have [Transfer-Encoding:] and the body is a
-        stream, sets [Transfer-Encoding: chunked].
-  
-      This is built in because an application cannot be expected to decide
-      including these headers in the face of transparent HTTP/2 upgrades. The
-      headers are necessary in HTTP/1, and forbidden or redundant and difficult to
-      use in HTTP/2. *)
-  
+
   val with_site_prefix : string -> middleware
   (** Removes the given prefix from the path in each request, and adds it to the
       request prefix. Responds with [502 Bad Gateway] if the path does not have
@@ -1817,11 +1827,9 @@ module Make
       emitting secure cookies. *)
   (* TODO Clarify that this isn't included with the built-ins, but is something on
       topic that one might want to use. *)
-  
-  
-  
+
   (** {1:web_formats Web formats} *)
-  
+
   val html_escape : string -> string
   (** Escapes a string so that it is suitable for use as text inside HTML
       elements and quoted attribute values. Implements
@@ -1832,7 +1840,7 @@ module Make
       scripts, or inline CSS. See {i Security} in example
       {{:https://github.com/aantron/dream/tree/master/example/7-template#security}
       [7-template]}. *)
-  
+
   val to_base64url : string -> string
   (** Converts the given string its base64url encoding, as specified in
       {{:https://tools.ietf.org/html/rfc4648#section-5} RFC 4648 §5}, using a
@@ -1841,10 +1849,10 @@ module Make
       JavaScript code. For more options, see the
       {{:https://mirage.github.io/ocaml-base64/base64/Base64/index.html} Base64}
       library.*)
-  
+
   val from_base64url : string -> string option
   (** Inverse of {!Dream.to_base64url}. *)
-  
+
   val to_percent_encoded : ?international:bool -> string -> string
   (** Percent-encodes a string for use inside a URL.
   
@@ -1858,25 +1866,25 @@ module Make
       interface language(s) the user expects. In the latter case, similar letters
       from different writing scripts can be used to mislead users about the
       targets of links. *)
-  
+
   val from_percent_encoded : string -> string
   (** Inverse of {!Dream.to_percent_encoded}. *)
-  
+
   val to_form_urlencoded : (string * string) list -> string
   (** Inverse of {!Dream.from_form_urlencoded}. Percent-encodes names and
       values. *)
-  
+
   val from_form_urlencoded : string -> (string * string) list
   (** Converts form data or a query string from
       [application/x-www-form-urlencoded] format to a list of name-value pairs.
       See {{:https://tools.ietf.org/html/rfc1866#section-8.2.1} RFC 1866
       §8.2.1}. Reverses the percent-encoding of names and values. *)
-  
+
   val from_cookie : string -> (string * string) list
   (** Converts a [Cookie:] header value to key-value pairs. See
       {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-4.2.1}
       RFC 6265bis §4.2.1}. Does not apply any decoding to names and values. *)
-  
+
   val to_set_cookie :
     ?expires:float ->
     ?max_age:float ->
@@ -1884,8 +1892,10 @@ module Make
     ?path:string ->
     ?secure:bool ->
     ?http_only:bool ->
-    ?same_site:[ `Strict | `Lax | `None ] ->
-      string -> string -> string
+    ?same_site:[`Strict | `Lax | `None] ->
+    string ->
+    string ->
+    string
   (** [Dream.to_set_cookie name value] formats a [Set-Cookie:] header value. The
       optional arguments correspond to the attributes specified in
       {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-5.3}
@@ -1893,10 +1903,10 @@ module Make
   
       Does not apply any encoding to names and values. Be sure to encode so that
       names and values cannot contain `=`, `;`, or newline characters. *)
-  
+
   val split_target : string -> string * string
   (** Splits a request target into a path and a query string. *)
-  
+
   val from_path : string -> string list
   (** Splits the string into components on [/] and percent-decodes each component.
       Empty components are dropped, except for the last. This function does not
@@ -1914,7 +1924,7 @@ module Make
       This function is not for use on full targets, because they may incldue query
       strings ([?]), and {!Dream.from_path} does not treat them specially. Split
       query strings off with {!Dream.split_target} first. *)
-  
+
   val to_path : ?relative:bool -> ?international:bool -> string list -> string
   (** Percent-encodes a list of path components and joins them with [/] into a
       path. Empty components, except for the last, are removed. The path is
@@ -1922,22 +1932,20 @@ module Make
       {!Dream.to_path} uses an IRI-friendly percent encoder, which preserves UTF-8
       bytes in unencoded form. Use [~international:false] to percent-encode those
       bytes as well, for legacy protocols that require ASCII URLs. *)
-  
+
   val drop_trailing_slash : string list -> string list
   (** Changes the representation of path [abc/] to the representation of [abc] by
       checking if the last element in the list is [""], and, if it is, dropping
       it. *)
-  
+
   val text_html : string
   (** The string ["text/html; charset=utf-8"] for [Content-Type:] headers. *)
-  
+
   val application_json : string
   (** The string ["application/json"] for [Content-Type:] headers. *)
-  
-  
-  
+
   (** {1 Cryptography} *)
-  
+
   val set_secret : ?old_secrets:string list -> string -> middleware
   (** Sets a key to be used for cryptographic operations, such as signing CSRF
       tokens and encrypting cookies.
@@ -1960,15 +1968,13 @@ module Make
       verification. This is intended for key rotation. A medium-sized Web app
       serving 1000 fresh encrypted cookies per second should rotate keys about
       once a year. *)
-  
+
   val random : int -> string
   (** Generates the requested number of bytes using a
       {{:https://github.com/mirage/mirage-crypto} cryptographically secure random
       number generator}. *)
-  
-  val encrypt :
-    ?associated_data:string ->
-      request -> string -> string
+
+  val encrypt : ?associated_data:string -> request -> string -> string
   (** Signs and encrypts the string using the [~secret] in the request. See
       {!Dream.run} for setting [~secret].
   
@@ -1998,58 +2004,52 @@ module Make
       OWASP {i Cryptographic Storage Cheat Sheet}} and
       {{:https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html}
       OWASP {i Password Storage Cheat Sheet}}. *)
-  
-  val decrypt :
-    ?associated_data:string ->
-      request -> string -> string option
+
+  val decrypt : ?associated_data:string -> request -> string -> string option
   (** Reverses {!Dream.encrypt}.
   
       To support secret rotation, the decryption secrets with which decryption is
       attempted are [(~secret)::(~old_secrets)]. See the descriptions of [~secret]
       and [~old_secrets] in {!Dream.run}. *)
-  
-  
-  
+
   (** {1 Variables}
   
       Dream supports user-defined per-message variables for use by middlewares. *)
-  
+
   type 'a field
   (** Per-message variable. *)
-  
+
   val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
   (** Declares a variable of type ['a] in all messages. The variable is initially
       unset in each message. The optional [~name] and [~show_value] are used by
       {!Dream.run} [~debug] to show the variable in debug dumps. *)
-  
-  
+
   val field : 'b message -> 'a field -> 'a option
   (** Retrieves the value of the per-message variable. *)
-  
+
   val set_field : 'b message -> 'a field -> 'a -> unit
   (** Sets the per-message variable to the value. *)
-  
-  
+
   val echo : handler
   (** Responds with the request body. *)
-  
+
   val https :
-       ?stop:Lwt_switch.t
-    -> port:int
-    -> ?prefix:string
-    -> Stack.TCP.t
-    -> ?cfg:Tls.Config.server
-    -> ?error_handler:error_handler
-    -> handler
-    -> unit Lwt.t
+    ?stop:Lwt_switch.t ->
+    port:int ->
+    ?prefix:string ->
+    Stack.TCP.t ->
+    ?cfg:Tls.Config.server ->
+    ?error_handler:error_handler ->
+    handler ->
+    unit Lwt.t
 
   val http :
-       ?stop:Lwt_switch.t
-    -> port:int
-    -> ?prefix:string
-    -> ?protocol:[ `H2 | `HTTP_1_1 ]
-    -> Stack.TCP.t
-    -> ?error_handler:error_handler
-    -> handler
-    -> unit Lwt.t
+    ?stop:Lwt_switch.t ->
+    port:int ->
+    ?prefix:string ->
+    ?protocol:[`H2 | `HTTP_1_1] ->
+    Stack.TCP.t ->
+    ?error_handler:error_handler ->
+    handler ->
+    unit Lwt.t
 end

From 6361b0467e97de821111a9e4140a5a330688fbad Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Mon, 28 Feb 2022 13:27:44 +0100
Subject: [PATCH 216/312] vendored paf requires emile

---
 dream-mirage.opam | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dream-mirage.opam b/dream-mirage.opam
index 24b3f978..e07c9690 100644
--- a/dream-mirage.opam
+++ b/dream-mirage.opam
@@ -60,6 +60,7 @@ depends: [
   "tls-mirage"
   "lwt_ppx" {>= "1.2.2"}
   "letsencrypt" {>= "0.3.0"}
+  "emile" {>= "1.1"}
 ]
 
 build: [

From 9cc4a6e76d2273316bffd1ef0ce4cbf528ccd5c8 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Fri, 25 Mar 2022 17:55:45 +0100
Subject: [PATCH 217/312] Update paf commit (mirage-stack => tcpip)

---
 .gitmodules    | 2 +-
 src/vendor/paf | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.gitmodules b/.gitmodules
index f3b0748b..23c0967f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -12,5 +12,5 @@
 	url = https://github.com/aantron/ocaml-h2.git
 [submodule "src/vendor/paf"]
 	path = src/vendor/paf
-	url = https://github.com/dinosaure/paf-le-chien.git
+	url = https://github.com/aantron/paf-le-chien.git
 	branch = dream
diff --git a/src/vendor/paf b/src/vendor/paf
index b52b0e6b..4f1e084b 160000
--- a/src/vendor/paf
+++ b/src/vendor/paf
@@ -1 +1 @@
-Subproject commit b52b0e6be8b7bb6f0dcb84c4d82963114468956a
+Subproject commit 4f1e084b27014bc241f93ade6e3fb1d1ba20ff65

From 104859bc5f3da0b47ba1d9b340dae33282663c85 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Tue, 8 Feb 2022 18:28:31 +0100
Subject: [PATCH 218/312] Mirage: separate TCP connection from TLS connection

---
 src/mirage/mirage.ml | 14 ++++++++------
 src/vendor/paf       |  2 +-
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 94530b5b..1063a594 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -402,18 +402,20 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let https ?stop ~port ?(prefix= "") stack
     ?(cfg= Tls.Config.server ~certificates:localhost_certificate ())
     ?error_handler:(user's_error_handler : error_handler = Error_handler.default) (user's_dream_handler : Message.handler) =
-    initialize ~setup_outputs:ignore ;    
-    let accept t = accept t >>? fun flow ->
+    initialize ~setup_outputs:ignore ; 
+    let connect flow =
       let edn = Stack.TCP.dst flow in
-      TLS.server_of_flow cfg flow >>= function
+      TLS.server_of_flow cfg flow
+      >>= function
       | Ok flow -> Lwt.return_ok (edn, flow)
-      | Error err -> Lwt.return (R.error_msgf "%a" TLS.pp_write_error err) in
+      | Error err -> Lwt.return (R.error_msgf "%a" TLS.pp_write_error err) 
+    in
     let user's_dream_handler =
       built_in_middleware prefix user's_error_handler user's_dream_handler in
     let error_handler = error_handler user's_error_handler in
     let request_handler =
       request_handler user's_error_handler user's_dream_handler in
-    let service = Alpn.service alpn ~error_handler ~request_handler accept close in
+    let service = Alpn.service alpn ~error_handler ~request_handler connect accept close in
     init ~port stack >>= fun t ->
     let `Initialized th = serve ?stop service t in th
 
@@ -438,7 +440,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
       built_in_middleware prefix user's_error_handler user's_dream_handler in
     let error_handler = error_handler user's_error_handler in
     let request_handler = request_handler user's_error_handler user's_dream_handler in
-    let service = Alpn.service (alpn protocol) ~error_handler ~request_handler accept close in
+    let service = Alpn.service (alpn protocol) ~error_handler ~request_handler Lwt.return_ok accept close in
     init ~port stack >>= fun t ->
     let `Initialized th = serve ?stop service t in th
 
diff --git a/src/vendor/paf b/src/vendor/paf
index 4f1e084b..f5232894 160000
--- a/src/vendor/paf
+++ b/src/vendor/paf
@@ -1 +1 @@
-Subproject commit 4f1e084b27014bc241f93ade6e3fb1d1ba20ff65
+Subproject commit f52328947e482f398acbc27b206e5a927f9dde04

From 4da674a3c5e1736e357003b078706109c4b58ca0 Mon Sep 17 00:00:00 2001
From: Hannes Mehnert <hannes@mehnert.org>
Date: Tue, 22 Mar 2022 11:29:02 +0100
Subject: [PATCH 219/312] Mirage: set Content-Length headers

---
 src/mirage/mirage.ml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 1063a594..4e07962a 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -75,6 +75,8 @@ let wrap_handler_httpaf _user's_error_handler user's_dream_handler =
            2. Upon failure to establish a WebSocket, the function is called to
               transmit the resulting error response. *)
         let forward_response response =
+          Message.set_content_length_headers response;
+
           let headers =
             Httpaf.Headers.of_list (Message.all_headers response) in
 
@@ -512,4 +514,4 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
 
 end
 
-include Message
\ No newline at end of file
+include Message

From 930d15f11446b34af02e39f9b02332b89387a234 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Wed, 8 Mar 2023 05:52:41 +0300
Subject: [PATCH 220/312] Update submodules

h2 was already at a more advanced commit in Dream master. I also moved
the tweak of src/vendor/dune to this commit rather than a following one,
otherwise the build gets broken, which will needlessly screw up git
bisect later.

Co-authored-by: Anton Bachin <antonbachin@yahoo.com>
---
 src/vendor/dune   | 3 ++-
 src/vendor/gluten | 2 +-
 src/vendor/httpaf | 2 +-
 src/vendor/paf    | 2 +-
 4 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/vendor/dune b/src/vendor/dune
index ac440a8b..02a02a10 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -40,7 +40,8 @@
   (public_name dream-httpaf.gluten)
   (libraries
    bigstringaf
-   faraday)))
+   faraday
+   ke)))
 
 (subdir gluten/lwt
  (library
diff --git a/src/vendor/gluten b/src/vendor/gluten
index 0c9341a6..c4a764f4 160000
--- a/src/vendor/gluten
+++ b/src/vendor/gluten
@@ -1 +1 @@
-Subproject commit 0c9341a64ee7432c7a3e1a5e97b4012fee2775c2
+Subproject commit c4a764f40ef6d28feacd21b760b628c6c0500711
diff --git a/src/vendor/httpaf b/src/vendor/httpaf
index 3a74fd88..97692a43 160000
--- a/src/vendor/httpaf
+++ b/src/vendor/httpaf
@@ -1 +1 @@
-Subproject commit 3a74fd8851e3019f5889ae1bf9350e90ed40017d
+Subproject commit 97692a43b8aad12857bd7639a89cd69cb2ca3b19
diff --git a/src/vendor/paf b/src/vendor/paf
index f5232894..7f3bb4e2 160000
--- a/src/vendor/paf
+++ b/src/vendor/paf
@@ -1 +1 @@
-Subproject commit f52328947e482f398acbc27b206e5a927f9dde04
+Subproject commit 7f3bb4e2f59e8ddc40d824a0f3c423e127189676

From b703ad1730cc8f99f18469e060500788db42e011 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Thu, 6 Oct 2022 18:35:43 +0200
Subject: [PATCH 221/312] Mirage: adapt to new paf and http/af

---
 src/mirage/adapt.ml   | 10 +++---
 src/mirage/mirage.ml  | 76 ++++++++++++++++++++++++-------------------
 src/mirage/mirage.mli |  3 --
 src/vendor/dune       |  4 +--
 src/vendor/paf        |  2 +-
 5 files changed, 50 insertions(+), 45 deletions(-)

diff --git a/src/mirage/adapt.ml b/src/mirage/adapt.ml
index 5bac8680..499a9d59 100644
--- a/src/mirage/adapt.ml
+++ b/src/mirage/adapt.ml
@@ -71,11 +71,11 @@ let forward_body
 
 let forward_body_h2
     (response : Dream.Message.response)
-    (body : [ `write ] H2.Body.t) =
+    (body : H2.Body.Writer.t) =
 
   forward_body_general
     response
-    (H2.Body.write_string body)
-    (H2.Body.write_bigstring body)
-    (H2.Body.flush body)
-    (fun _code -> H2.Body.close_writer body)
+    (H2.Body.Writer.write_string body)
+    (H2.Body.Writer.write_bigstring body)
+    (H2.Body.Writer.flush body)
+    (fun _code -> H2.Body.Writer.close body)
diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 4e07962a..135f1540 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -18,13 +18,10 @@ open Lwt.Infix
 
 let to_dream_method meth = Httpaf.Method.to_string meth |> Method.string_to_method
 let to_httpaf_status status = Status.status_to_int status |> Httpaf.Status.of_code
-let to_h2_status status = Status.status_to_int status |> H2.Status.of_code
-let sha1 str = Digestif.SHA1.(to_raw_string (digest_string str))
-let const x = fun _ -> x
 let ( >>? ) = Lwt_result.bind
 
 let wrap_handler_httpaf _user's_error_handler user's_dream_handler =
-  let httpaf_request_handler = fun client reqd ->
+  let httpaf_request_handler = fun _ reqd ->
     let httpaf_request = Httpaf.Reqd.request reqd in
     let method_ = to_dream_method httpaf_request.meth in
     let target  = httpaf_request.target in
@@ -113,26 +110,41 @@ let wrap_handler_httpaf _user's_error_handler user's_dream_handler =
   httpaf_request_handler
 
 let request_handler
-  : Catch.error_handler -> Message.handler -> string -> Alpn.reqd -> unit
+  : type reqd headers request response ro wo.
+    Catch.error_handler -> Message.handler -> 
+      _ -> _ -> reqd ->
+      (reqd, headers, request, response, ro, wo) Alpn.protocol -> unit
   = fun (user's_error_handler : Catch.error_handler)
       (user's_dream_handler : Message.handler) -> ();
-    fun client_address -> function
-    | Alpn.Reqd_HTTP_1_1 reqd -> wrap_handler_httpaf user's_error_handler user's_dream_handler client_address reqd
+    fun _ _ reqd -> function
+    | Alpn.HTTP_1_1 _ ->
+      wrap_handler_httpaf user's_error_handler user's_dream_handler () reqd
     | _ -> assert false
 
 let error_handler
-  : Catch.error_handler -> string -> ?request:Alpn.request -> Alpn.server_error ->
-    (Alpn.headers -> Alpn.body) -> unit
+  : type reqd headers request response ro wo.
+    Catch.error_handler -> 
+    _ -> (reqd, headers, request, response, ro, wo) Alpn.protocol ->
+      ?request:request -> _ -> (headers -> wo) -> unit
   = fun 
       (user's_error_handler : Catch.error_handler) -> ();
-    fun client ?request error start_response ->
-  match request with
-  | Some (Alpn.Request_HTTP_1_1 request) ->
-    let start_response hdrs : Httpaf.Body.Writer.t = match start_response Alpn.(Headers_HTTP_1_1 hdrs) with
-      | Alpn.Body_HTTP_1_1 (Alpn.Wr, Alpn.Body_wr body) -> body
-      | _ -> Fmt.failwith "Impossible to respond with an h2 respond to an HTTP/1.1 client" in
-    Error_handler.httpaf user's_error_handler client ?request:(Some request) error start_response
-  | _ -> assert false (* TODO *)
+    fun client protocol ?request error respond ->
+    match protocol with
+    | Alpn.HTTP_1_1 _ ->
+      let start_response hdrs : Httpaf.Body.Writer.t = 
+        respond hdrs
+      in
+      Error_handler.httpaf user's_error_handler client ?request:(Some request) error start_response
+    | _ -> assert false (* TODO *)
+
+let handler user_err user_resp =
+  {
+    Alpn.error=(fun edn protocol ?request error respond -> 
+      error_handler user_err edn protocol ?request error respond);
+    request=(fun flow edn reqd protocol ->
+      request_handler user_err user_resp flow edn reqd protocol)
+  }
+
 
 module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip.Stack.V4V6) = struct
   include Dream_pure
@@ -169,10 +181,10 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
 
   let error_template =
     Error_handler.customize
-
+(* 
   let random =
     Dream__cipher.Random.random
-
+ *)
   include Formats
 
   (* Types *)
@@ -197,9 +209,9 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let method_ = Message.method_
   let target = Message.target
   let prefix = Router.prefix
-  let path = Router.path
-  let set_client = Helpers.set_client
-  let set_method_ = Message.set_method_
+ (*  let path = Router.path *)
+  (* let set_client = Helpers.set_client *)
+  (* let set_method_ = Message.set_method_ *)
   let query = Query.query
   let queries = Query.queries
   let all_queries = Query.all_queries
@@ -360,7 +372,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
     will_send_response : bool;
   }
   type error_handler = Catch.error_handler
-  let error_template = Error_handler.customize
+(*   let error_template = Error_handler.customize *)
   let catch = Catch.catch
 
   (* Cryptography *)
@@ -377,7 +389,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let field = Message.field
   let set_field = Message.set_field
 
-  open Paf_mirage.Make (Time) (Stack)
+  open Paf_mirage.Make (Stack.TCP)
 
   let alpn =
     let module R = (val Mimic.repr tls_protocol) in
@@ -406,7 +418,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
     ?error_handler:(user's_error_handler : error_handler = Error_handler.default) (user's_dream_handler : Message.handler) =
     initialize ~setup_outputs:ignore ; 
     let connect flow =
-      let edn = Stack.TCP.dst flow in
+      let edn = TCP.dst flow in
       TLS.server_of_flow cfg flow
       >>= function
       | Ok flow -> Lwt.return_ok (edn, flow)
@@ -414,10 +426,8 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
     in
     let user's_dream_handler =
       built_in_middleware prefix user's_error_handler user's_dream_handler in
-    let error_handler = error_handler user's_error_handler in
-    let request_handler =
-      request_handler user's_error_handler user's_dream_handler in
-    let service = Alpn.service alpn ~error_handler ~request_handler connect accept close in
+    let handler = handler user's_error_handler user's_dream_handler in
+    let service = Alpn.service alpn handler connect accept close in
     init ~port stack >>= fun t ->
     let `Initialized th = serve ?stop service t in th
 
@@ -436,18 +446,16 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
     user's_dream_handler =
     initialize ~setup_outputs:ignore ;
     let accept t = accept t >>? fun flow ->
-      let edn = Stack.TCP.dst flow in
+      let edn = TCP.dst flow in
       Lwt.return_ok (edn, flow) in
     let user's_dream_handler =
       built_in_middleware prefix user's_error_handler user's_dream_handler in
-    let error_handler = error_handler user's_error_handler in
-    let request_handler = request_handler user's_error_handler user's_dream_handler in
-    let service = Alpn.service (alpn protocol) ~error_handler ~request_handler Lwt.return_ok accept close in
+    let handler = handler user's_error_handler user's_dream_handler in
+    let service = Alpn.service (alpn protocol) handler Lwt.return_ok accept close in
     init ~port stack >>= fun t ->
     let `Initialized th = serve ?stop service t in th
 
 
-
   let validate_path request =
     let path = Dream__server.Router.path request in
 
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index 33a1b252..02d675c4 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -355,9 +355,6 @@ module Make
   val client : request -> string
   (** Client sending the request. For example, ["127.0.0.1:56001"]. *)
 
-  val https : request -> bool
-  (** Whether the request was sent over HTTPS. *)
-
   val method_ : request -> method_
   (** Request method. For example, [`GET]. *)
 
diff --git a/src/vendor/dune b/src/vendor/dune
index 02a02a10..19a00e7f 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -21,7 +21,7 @@
   (name paf_mirage)
   (public_name dream-mirage.paf.mirage)
   (modules paf_mirage)
-  (libraries dream-mirage.paf tls-mirage mirage-time mirage-stack dream-mirage.paf.alpn)))
+  (libraries tcpip dream-mirage.paf tls-mirage mirage-time dream-mirage.paf.alpn)))
 
 (subdir paf/lib
  (library
@@ -29,7 +29,7 @@
   (wrapped false)
   (public_name dream-mirage.paf.le)
   (modules lE)
-  (libraries dream-httpaf.httpaf dream-mirage.paf mirage-time mirage-stack duration tls-mirage emile
+  (libraries tcpip dream-httpaf.httpaf dream-mirage.paf mirage-time duration tls-mirage emile
     letsencrypt)))
 
 
diff --git a/src/vendor/paf b/src/vendor/paf
index 7f3bb4e2..4c85da83 160000
--- a/src/vendor/paf
+++ b/src/vendor/paf
@@ -1 +1 @@
-Subproject commit 7f3bb4e2f59e8ddc40d824a0f3c423e127189676
+Subproject commit 4c85da838065f249e8e56f32b31577659bd4b9d6

From c1025ad8fb74276c277abe1f5b0aa3d0606697dd Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Thu, 6 Oct 2022 19:52:53 +0200
Subject: [PATCH 222/312] Mirage: fix memory leak

---
 src/vendor/paf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vendor/paf b/src/vendor/paf
index 4c85da83..c04f1a38 160000
--- a/src/vendor/paf
+++ b/src/vendor/paf
@@ -1 +1 @@
-Subproject commit 4c85da838065f249e8e56f32b31577659bd4b9d6
+Subproject commit c04f1a3897348baff643e2520b00da0cb74b0d6a

From bb2e409c090f31e4fb9b8654ba636685ef7bb5e3 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Fri, 7 Oct 2022 00:59:28 +0200
Subject: [PATCH 223/312] Mirage: fix memory leak

---
 src/mirage/mirage.ml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 135f1540..1108ede2 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -422,7 +422,9 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
       TLS.server_of_flow cfg flow
       >>= function
       | Ok flow -> Lwt.return_ok (edn, flow)
-      | Error err -> Lwt.return (R.error_msgf "%a" TLS.pp_write_error err) 
+      | Error err ->
+        TCP.close flow >>= fun () ->
+        Lwt.return (R.error_msgf "%a" TLS.pp_write_error err)
     in
     let user's_dream_handler =
       built_in_middleware prefix user's_error_handler user's_dream_handler in

From 0d837d4b371bae524dfdee5fbbd0d21ace9bb231 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Wed, 4 Jan 2023 16:23:58 +0100
Subject: [PATCH 224/312] dream-mirage: add missing parts in the API

---
 src/mirage/mirage.ml  |  40 ++---
 src/mirage/mirage.mli | 404 +++++++++++++++++++++---------------------
 2 files changed, 225 insertions(+), 219 deletions(-)

diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 1108ede2..f2c6bb9b 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -111,7 +111,7 @@ let wrap_handler_httpaf _user's_error_handler user's_dream_handler =
 
 let request_handler
   : type reqd headers request response ro wo.
-    Catch.error_handler -> Message.handler -> 
+    Catch.error_handler -> Message.handler ->
       _ -> _ -> reqd ->
       (reqd, headers, request, response, ro, wo) Alpn.protocol -> unit
   = fun (user's_error_handler : Catch.error_handler)
@@ -123,15 +123,15 @@ let request_handler
 
 let error_handler
   : type reqd headers request response ro wo.
-    Catch.error_handler -> 
+    Catch.error_handler ->
     _ -> (reqd, headers, request, response, ro, wo) Alpn.protocol ->
       ?request:request -> _ -> (headers -> wo) -> unit
-  = fun 
+  = fun
       (user's_error_handler : Catch.error_handler) -> ();
     fun client protocol ?request error respond ->
     match protocol with
     | Alpn.HTTP_1_1 _ ->
-      let start_response hdrs : Httpaf.Body.Writer.t = 
+      let start_response hdrs : Httpaf.Body.Writer.t =
         respond hdrs
       in
       Error_handler.httpaf user's_error_handler client ?request:(Some request) error start_response
@@ -139,7 +139,7 @@ let error_handler
 
 let handler user_err user_resp =
   {
-    Alpn.error=(fun edn protocol ?request error respond -> 
+    Alpn.error=(fun edn protocol ?request error respond ->
       error_handler user_err edn protocol ?request error respond);
     request=(fun flow edn reqd protocol ->
       request_handler user_err user_resp flow edn reqd protocol)
@@ -154,34 +154,34 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   include Log
   include Log.Make (Pclock)
   include Dream__server.Echo
-  
+
   let default_log =
     Log.sub_log (Logs.Src.name Logs.default)
-  
+
   let error = default_log.error
   let warning = default_log.warning
   let info = default_log.info
   let debug = default_log.debug
-  
-  module Session = struct 
+
+  module Session = struct
     include Dream__server.Session
     include Dream__server.Session.Make (Pclock)
   end
   module Flash = Dream__server.Flash
-  
+
 
   include Dream__server.Origin_referrer_check
   include Dream__server.Form
   include Dream__server.Upload
   include Dream__server.Csrf
-  
-  
+
+
   include Dream__server.Catch
   include Dream__server.Site_prefix
 
   let error_template =
     Error_handler.customize
-(* 
+(*
   let random =
     Dream__cipher.Random.random
  *)
@@ -209,9 +209,9 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let method_ = Message.method_
   let target = Message.target
   let prefix = Router.prefix
- (*  let path = Router.path *)
-  (* let set_client = Helpers.set_client *)
-  (* let set_method_ = Message.set_method_ *)
+  let path = Router.path
+  let set_client = Helpers.set_client
+  let set_method_ = Message.set_method_
   let query = Query.query
   let queries = Query.queries
   let all_queries = Query.all_queries
@@ -338,13 +338,13 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let csrf_token = csrf_token ~now
   let verify_csrf_token = verify_csrf_token ~now
   let csrf_tag = Tag.csrf_tag ~now
-  
+
   (* Templates *)
 
   let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
     Tag.form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
 
-  
+
 
   (* Errors *)
 
@@ -416,7 +416,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let https ?stop ~port ?(prefix= "") stack
     ?(cfg= Tls.Config.server ~certificates:localhost_certificate ())
     ?error_handler:(user's_error_handler : error_handler = Error_handler.default) (user's_dream_handler : Message.handler) =
-    initialize ~setup_outputs:ignore ; 
+    initialize ~setup_outputs:ignore ;
     let connect flow =
       let edn = TCP.dst flow in
       TLS.server_of_flow cfg flow
@@ -494,7 +494,7 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
       | content_type -> content_type
     in
     ["Content-Type", content_type]
-  
+
   let static ~loader local_root = fun request ->
 
     if not @@ Method.methods_equal (Message.method_ request) `GET then
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index 02d675c4..d5753c96 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -36,7 +36,7 @@ module Make
       complete Web server! You can also see the Reason version in example
       {{:https://github.com/aantron/dream/tree/master/example/r-hello#files}
       [r-hello]}.
-  
+
       {[
         let () =
           Dream.run (fun _ ->
@@ -48,29 +48,29 @@ module Make
       or after — producing a “bigger” handler. Example
       {{:https://github.com/aantron/dream/tree/master/example/2-middleware#files}
       [2-middleware]} inserts the {!Dream.logger} middleware into a Web app:
-  
+
       {[
         let () =
           Dream.run
           @@ Dream.logger
           @@ fun _ -> Dream.html "Good morning, world!"
       ]}
-  
+
       Examples
       {{:https://github.com/aantron/dream/tree/master/example/4-counter#files}
       [4-counter]} \[{{:http://dream.as/4-counter} playground}\] and
       {{:https://github.com/aantron/dream/tree/master/example/5-promise#files}
       [5-promise]} show user-defined middlewares:
-  
+
       {[
         let count_requests inner_handler request =
           count := !count + 1;
           inner_handler request
       ]}
-  
+
       In case you are wondering why the example middleware [count_requests] takes
       two arguments, while the type says it should take only one, it's because:
-  
+
       {[
         middleware
           = handler -> handler
@@ -84,7 +84,7 @@ module Make
       {{:https://github.com/aantron/dream/tree/master/example/3-router#files}
       [3-router]} \[{{:http://dream.as/3-router/echo/foo} playground}\]. Routes
       are created by helpers such as {!Dream.get} and {!Dream.scope}:
-  
+
       {[
         Dream.router [
           Dream.scope "/admin" [Dream.memory_sessions] [
@@ -95,15 +95,15 @@ module Make
       ]} *)
 
   (** {2 Algebra}
-  
+
       The three handler-related types have a vaguely algebraic interpretation:
-  
+
       - Each literal {!handler} is an atom.
       - {!type-middleware} is for sequential composition (product-like).
         {!Dream.no_middleware} is {b 1}.
       - {!type-route} is for alternative composition (sum-like). {!Dream.no_route}
         is {b 0}.
-  
+
       {!Dream.scope} implements a left distributive law, making Dream a ring-like
       structure. *)
   (** {2 Helpers} *)
@@ -112,7 +112,7 @@ module Make
   (** ['a message], pronounced “any message,” allows some functions to take either
       {!type-request} or {!type-response} as arguments, because both are defined
       in terms of ['a message]. For example, in {!section-headers}:
-  
+
       {[
         val Dream.header : string -> 'a message -> string option
       ]} *)
@@ -133,7 +133,7 @@ module Make
       asynchronous I/O. See example
       {{:https://github.com/aantron/dream/tree/master/example/5-promise#files}
       [5-promise]} \[{{:http://dream.as/5-promise} playground}\].
-  
+
       Use [raise] to reject promises. If you are writing a library, you may prefer
       using
       {{:https://github.com/ocsigen/lwt/blob/9943ba77a5508feaea5e1fb60b011db4179f9c61/src/core/lwt.mli#L459}
@@ -170,7 +170,7 @@ module Make
   val methods_equal : [< method_] -> [< method_] -> bool
   (** Compares two methods, such that equal methods are detected even if one is
       represented as a string. For example,
-  
+
       {[
         Dream.methods_equal `GET (`Method "GET") = true
       ]} *)
@@ -178,7 +178,7 @@ module Make
   val normalize_method : [< method_] -> method_
   (** Converts methods represented as strings to variants. Methods generated by
       Dream are always normalized.
-  
+
       {[
         Dream.normalize_method (`Method "GET") = `GET
       ]} *)
@@ -252,11 +252,11 @@ module Make
     | `Unavailable_For_Legal_Reasons ]
   (** Client error ([4xx]) status codes. The most common are [400 Bad Request],
       [401 Unauthorized], [403 Forbidden], and, of course, [404 Not Found].
-  
+
       See
       {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status#client_error_responses}
       MDN}, and
-  
+
       - {{:https://tools.ietf.org/html/rfc7231#section-6.5} RFC 7231 §6.5} for
         most client error status codes.
       - {{:https://tools.ietf.org/html/rfc7233#section-4.4} RFC 7233 §4.4} for
@@ -337,7 +337,7 @@ module Make
   val status_codes_equal : [< status] -> [< status] -> bool
   (** Compares two status codes, such that equal codes are detected even if one is
       represented as a number. For example,
-  
+
       {[
         Dream.status_codes_equal `Not_Found (`Status 404) = true
       ]} *)
@@ -345,7 +345,7 @@ module Make
   val normalize_status : [< status] -> status
   (** Converts status codes represented as numbers to variants. Status codes
       generated by Dream are always normalized.
-  
+
       {[
         Dream.normalize_status (`Status 404) = `Not_Found
       ]} *)
@@ -367,6 +367,12 @@ module Make
 
   (**/**)
 
+  val set_client : request -> string -> unit
+  (** Replaces the client. See {!Dream.val-client}. *)
+
+  val set_method_ : request -> [< method_ ] -> unit
+  (** Replaces the method. See {!Dream.type-method_}. *)
+
   val query : request -> string -> string option
   (** First query parameter with the given name. See
       {{:https://tools.ietf.org/html/rfc3986#section-3.4} RFC 3986 §3.4} and
@@ -391,7 +397,7 @@ module Make
   (** Creates a new {!type-response} with the given string as body. [~code] and
       [~status] are two ways to specify the {!type-status} code, which is [200 OK]
       by default. The headers are empty by default.
-  
+
       Note that browsers may interpret lack of a [Content-Type:] header as if its
       value were [application/octet-stream] or [text/html; charset=us-ascii],
       which will prevent correct interpretation of UTF-8 strings. Either add a
@@ -416,7 +422,7 @@ module Make
     response promise
   (** Same as {!Dream.respond}, but adds [Content-Type: text/html; charset=utf-8].
       See {!Dream.text_html}.
-  
+
       As your Web app develops, consider adding [Content-Security-Policy] headers,
       as described in example
       {{:https://github.com/aantron/dream/tree/master/example/w-content-security-policy#files}
@@ -443,10 +449,10 @@ module Make
       string. The default status code is [303 See Other], for a temporary
       redirection. Use [~status:`Moved_Permanently] or [~code:301] for a permanent
       redirection.
-  
+
       If you use [~code], be sure the number follows the pattern [3xx], or most
       browsers and other clients won't actually perform a redirect.
-  
+
       The {!type-request} is used for retrieving the site prefix, if the string is
       an absolute path. Most applications don't have a site prefix. *)
 
@@ -553,26 +559,26 @@ module Make
   (** Equivalent to {!Dream.drop_header} followed by {!Dream.add_header}. *)
 
   (** {1 Cookies}
-  
+
       {!Dream.set_cookie} and {!Dream.cookie} are designed for round-tripping
       secure cookies. The most secure settings applicable to the current server
       are inferred automatically. See example
       {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
       [c-cookie]} \[{{:http://dream.as/c-cookie} playground}\].
-  
+
       {[
         Dream.set_cookie "my.cookie" "foo" request response
         Dream.cookie "my.cookie" request
       ]}
-  
+
       The {!Dream.cookie} call evaluates to [Some "foo"], but the actual cookie
       that is exchanged may look like:
-  
+
       {v
   __Host-my.cookie=AL7NLA8-so3e47uy0R5E2MpEQ0TtTWztdhq5pTEUT7KSFg; \
     Path=/; Secure; HttpOnly; SameSite=Strict
       v}
-  
+
       {!Dream.set_cookie} has a large number of optional arguments for tweaking
       the inferred security settings. If you use them, pass the same arguments to
       {!Dream.cookie} to automatically undo the result. *)
@@ -594,22 +600,22 @@ module Make
     unit
   (** Appends a [Set-Cookie:] header to the {!type-response}. Infers the most
       secure defaults from the {!type-request}.
-  
+
       {[
         Dream.set_cookie "my.cookie" "value" request response
       ]}
-  
+
       Specify {!Dream.run} argument [~secret], or the Web app will not be able to
       decrypt cookies from prior starts.
-  
+
       See example
       {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
       [c-cookie]}.
-  
+
       Most of the optional arguments are for overriding inferred defaults.
       [~expires] and [~max_age] are independently useful. In particular, to delete
       a cookie, use [~expires:0.]
-  
+
       - [~prefix] sets [__Host-], [__Secure-], or no prefix, from most secure to
         least. A conforming client will refuse to accept the cookie if [~domain],
         [~path], and [~secure] don't match the constraints implied by the prefix.
@@ -664,7 +670,7 @@ module Make
         RFC 6265bis §4.1.2.7} and
         {{:https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#SameSite_attribute}
         MDN}.
-  
+
       {!Dream.to_set_cookie} is a “raw” version of this function that does not do
       any inference. *)
 
@@ -680,7 +686,7 @@ module Make
     string ->
     unit
   (** Deletes the given cookie.
-  
+
       This function works by calling {!Dream.set_cookie}, and setting the cookie
       to expire in the past. Pass all the same optional values that you would pass
       to {!Dream.set_cookie}, to make sure that the same cookie is deleted. *)
@@ -697,11 +703,11 @@ module Make
   (** First cookie with the given name. See example
       {{:https://github.com/aantron/dream/tree/master/example/c-cookie#files}
       [c-cookie]}.
-  
+
       {[
         Dream.cookie "my.cookie" request
       ]}
-  
+
       Pass the same optional arguments as to {!Dream.set_cookie} for the same
       cookie. This will allow {!Dream.cookie} to infer the cookie name prefix,
       implementing a transparent cookie round trip with the most secure attributes
@@ -728,7 +734,7 @@ module Make
       {{:http://caml.inria.fr/pub/docs/manual-ocaml/libref/Bigarray.Array1.html}
       [Bigarray.Array1]}. This type is also found in several libraries installed
       by Dream, so their functions can be used with {!Dream.buffer}:
-  
+
       - {{:https://github.com/inhabitedtype/bigstringaf/blob/353cb283aef4c261597f68154eb27a138e7ef112/lib/bigstringaf.mli}
         [Bigstringaf.t]} in bigstringaf.
       - {{:https://ocsigen.org/lwt/latest/api/Lwt_bytes} [Lwt_bytes.t]} in Lwt.
@@ -808,7 +814,7 @@ module Make
     exn:(exn -> unit) ->
     unit
   (** Waits for the next stream event, and calls:
-  
+
       - [~buffer] with an offset and length, if a {!type-buffer} is written,
       - [~close] if close is requested, and
       - [~exn] to report an exception. *)
@@ -855,12 +861,12 @@ module Make
   (* TODO Ergonomics of this stream surface API. *)
 
   (** {1 JSON}
-  
+
       Dream presently recommends using
       {{:https://github.com/ocaml-community/yojson#readme} Yojson}. See also
       {{:https://github.com/janestreet/ppx_yojson_conv#readme} ppx_yojson_conv}
       for generating JSON parsers and serializers for OCaml data types.
-  
+
       See example
       {{:https://github.com/aantron/dream/tree/master/example/e-json#files}
       [e-json]}. *)
@@ -868,48 +874,48 @@ module Make
   val origin_referrer_check : middleware
   (** CSRF protection for AJAX requests. Either the method must be [`GET] or
       [`HEAD], or:
-  
+
       - [Origin:] or [Referer:] must be present, and
       - their value must match [Host:]
-  
+
       Responds with [400 Bad Request] if the check fails. See example
       {{:https://github.com/aantron/dream/tree/master/example/e-json#security}
       [e-json]}.
-  
+
       Implements the
       {{:https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html#verifying-origin-with-standard-headers}
       OWASP {i Verifying Origin With Standard Headers}} CSRF defense-in-depth
       technique, which is good enough for basic usage. Do not allow [`GET] or
       [`HEAD] requests to trigger important side effects if relying only on
       {!Dream.origin_referrer_check}.
-  
+
       Future extensions to this function may use [X-Forwarded-Host] or host
       whitelists.
-  
+
       For more thorough protection, generate CSRF tokens with {!Dream.csrf_token},
       send them to the client (for instance, in [<meta>] tags of a single-page
       application), and require their presence in an [X-CSRF-Token:] header. *)
 
   (** {1 Forms}
-  
+
       {!Dream.form_tag} and {!Dream.val-form} round-trip secure forms.
       {!Dream.form_tag} is used inside a template to generate a form header with a
       CSRF token:
-  
+
       {[
         <%s! Dream.form_tag ~action:"/" request %>
           <input name="my.field">
         </form>
       ]}
-  
+
       {!Dream.val-form} recieves the form and checks the CSRF token:
-  
+
       {[
         match%lwt Dream.form request with
         | `Ok ["my.field", value] -> (* ... *)
         | _ -> Dream.empty `Bad_Request
       ]}
-  
+
       See example
       {{:https://github.com/aantron/dream/tree/master/example/d-form#files}
       [d-form]} \[{{:http://dream.as/d-form} playground}\]. *)
@@ -926,10 +932,10 @@ module Make
       {!Dream.val-form} and example
       {{:https://github.com/aantron/dream/tree/master/example/d-form#files}
       [d-form]}.
-  
+
       The first three constructors, [`Ok], [`Expired], and [`Wrong_session] can
       occur in regular usage.
-  
+
       The remaining constructors, [`Invalid_token], [`Missing_token],
       [`Many_tokens], [`Wrong_content_type] correspond to bugs, suspicious
       activity, or tokens so old that decryption keys have since been rotated on
@@ -941,37 +947,37 @@ module Make
       pass these checks. See {!section-templates} and example
       {{:https://github.com/aantron/dream/tree/master/example/d-form#readme}
       [d-form]}.
-  
+
       - [Content-Type:] must be [application/x-www-form-urlencoded].
       - The form must have a field named [dream.csrf]. {!Dream.form_tag} adds such
         a field.
       - {!Dream.form} calls {!Dream.verify_csrf_token} to check the token in
         [dream.csrf].
-  
+
       The call must be done under a session middleware, since each CSRF token is
       scoped to a session. See {!section-sessions}.
-  
+
       Form fields are sorted for easy pattern matching:
-  
+
       {[
         match%lwt Dream.form request with
         | `Ok ["email", email; "name", name] -> (* ... *)
         | _ -> Dream.empty `Bad_Request
       ]}
-  
+
       To recover from conditions like expired forms, add extra cases:
-  
+
       {[
         match%lwt Dream.form request with
         | `Ok      ["email", email; "name", name] -> (* ... *)
         | `Expired ["email", email; "name", name] -> (* ... *)
         | _ -> Dream.empty `Bad_Request
       ]}
-  
+
       It is recommended not to mutate state or send back sensitive data in the
       [`Expired] and [`Wrong_session] cases, as they {e may} indicate an attack
       against a client.
-  
+
       The remaining cases, including unexpected field sets and the remaining
       constructors of {!Dream.type-form_result}, usually indicate either bugs or
       attacks. It's usually fine to respond to all of them with [400 Bad
@@ -982,15 +988,15 @@ module Make
   type multipart_form = (string * (string option * string) list) list
   (** Submitted file upload forms, [<form enctype="multipart/form-data">]. For
       example, if a form
-  
+
       {v
   <input name="files" type="file" multiple>
   <input name="text">
       v}
-  
+
       is submitted with two files and a text value, it will be received by
       {!Dream.multipart} as
-  
+
       {[
         [
           "files", [
@@ -1002,24 +1008,24 @@ module Make
           ];
         ]
       ]}
-  
+
       See example
       {{:https://github.com/aantron/dream/tree/master/example/g-upload#files}
       [g-upload]} \[{{:http://dream.as/g-upload} playground}\] and
       {{:https://datatracker.ietf.org/doc/html/rfc7578} RFC 7578}.
-  
+
       Note that clients such as curl can send files with no filename ([None]),
       though most browsers seem to insert at least an empty filename ([Some ""]).
       Don't use use the presence of a filename to determine if the field value is
       a file. Use the field name and knowledge about the form instead.
-  
+
       If a file field has zero files when submitted, browsers send
       ["field-name", [Some ""; ""]]. {!Dream.multipart} replaces this with
       ["field-name", []]. Use the advanced interface {!Dream.upload} for the raw
       behavior.
-  
+
       Non-file fields always have one value, which might be the empty string.
-  
+
       See
       {{:https://cheatsheetseries.owasp.org/cheatsheets/File_Upload_Cheat_Sheet.html}
       OWASP {i File Upload Cheat Sheet}} for security precautions for upload
@@ -1029,19 +1035,19 @@ module Make
   (** Like {!Dream.form}, but also reads files, and [Content-Type:] must be
       [multipart/form-data]. The [<form>] tag and CSRF token can be generated in a
       template with
-  
+
       {[
         <%s! Dream.form_tag ~action:"/"
                 ~enctype:`Multipart_form_data request %>
       ]}
-  
+
       See {!Dream.form_tag}, section {!section-templates}, and example
       {{:https://github.com/aantron/dream/tree/master/example/g-upload#files}
       [g-upload]}.
-  
+
       Note that, like {!Dream.form}, this function sorts form fields by field
       name.
-  
+
       {!Dream.multipart} reads entire files into memory, so it is only suitable
       for prototyping, or with yet-to-be-added file size and count limits. See
       {!Dream.val-upload} below for a streaming version. *)
@@ -1050,26 +1056,26 @@ module Make
 
   type part = string option * string option * (string * string) list
   (** Upload form parts.
-  
+
       A value [Some (name, filename, headers)] received by {!Dream.val-upload}
       begins a {e part} in the stream. A part represents either a form field, or
       a single, complete file.
-  
+
       Note that, in the general case, [filename] and [headers] are not reliable.
       [name] is the form field name. *)
 
   val upload : request -> part option promise
   (** Retrieves the next upload part.
-  
+
       Upon getting [Some (name, filename, headers)] from this function, the user
       should call {!Dream.upload_part} to stream chunks of the part's data, until
       that function returns [None]. The user should then call {!Dream.val-upload}
       again. [None] from {!Dream.val-upload} indicates that all parts have been
       received.
-  
+
       {!Dream.upload} does not verify a CSRF token. There are several ways to add
       CSRF protection for an upload stream, including:
-  
+
       - Generate the form with {!Dream.form_tag}. Check for
         [`Field ("dream.csrf", token)] during upload and call
         {!Dream.verify_csrf_token}.
@@ -1081,13 +1087,13 @@ module Make
   (** Retrieves a part chunk. *)
 
   (** {2 CSRF tokens}
-  
+
       It's usually not necessary to handle CSRF tokens directly.
-  
+
       - Form tag generator {!Dream.form_tag} generates and inserts a CSRF token
         that {!Dream.val-form} and {!Dream.val-multipart} transparently verify.
       - AJAX can be protected from CSRF by {!Dream.origin_referrer_check}.
-  
+
       CSRF functions are exposed for creating custom schemes, and for
       defense-in-depth purposes. See
       {{:https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html}
@@ -1099,12 +1105,12 @@ module Make
     | `Wrong_session
     | `Invalid ]
   (** CSRF token verification outcomes.
-  
+
       [`Expired] and [`Wrong_session] can occur in normal usage, when a user's
       form or session expire, respectively. However, they can also indicate
       attacks, including stolen tokens, stolen tokens from other sessions, or
       attempts to use a token from an invalidated pre-session after login.
-  
+
       [`Invalid] indicates a token with a bad signature, a payload that was not
       generated by Dream, or other serious errors that cannot usually be triggered
       by normal users. [`Invalid] usually corresponds to bugs or attacks.
@@ -1123,10 +1129,10 @@ module Make
   val csrf_tag : request -> string
 
   (** {1 Templates}
-  
+
       Dream includes a template preprocessor that allows interleaving OCaml and
       HTML in the same file:
-  
+
       {v
   let render message =
     <html>
@@ -1135,13 +1141,13 @@ module Make
       </body>
     </html>
       v}
-  
+
       See examples
       {{:https://github.com/aantron/dream/tree/master/example/7-template#files}
       [7-template]} \[{{:http://dream.as/7-template} playground}\] and
       {{:https://github.com/aantron/dream/tree/master/example/r-template#files}
       [r-template]} \[{{:http://dream.as/r-template} playground}\].
-  
+
       There is also a typed alternative, provided by an external library,
       {{:https://github.com/ocsigen/tyxml} TyXML}. It is shown in example
       {{:https://github.com/aantron/dream/tree/master/example/w-tyxml#files}
@@ -1151,23 +1157,23 @@ module Make
       example
       {{:https://github.com/aantron/dream/tree/master/example/r-tyxml#files}
       [r-tyxml]} \[{{:http://dream.as/r-tyxml} playground}\].
-  
+
       To use the built-in templates, add this to [dune]:
-  
+
       {v
   (rule
     (targets template.ml)
     (deps template.eml.ml)
     (action (run dream_eml %{deps} --workspace %{workspace_root})))
       v}
-  
+
       A template begins...
-  
+
       - {e Implicitly} on a line that starts with [<], perhaps with leading
         whitespace. The line is part of the template.
       - {e Explicitly} after a line that starts with [%%]. The [%%] line is not
         part of the template.
-  
+
       A [%%] line can also be used to set template options. The only option
       supported presently is [%% response] for streaming the template using
       {!Dream.write}, to a {!type-response} that is in scope. This is shown in
@@ -1176,17 +1182,17 @@ module Make
       [w-template-stream]} and
       {{:https://github.com/aantron/dream/tree/master/example/r-template-stream#files}
       [r-template-stream]}.
-  
+
       A template ends...
-  
+
       - {e Implicitly}, when the indentation level is less than that of the
         beginning line.
       - {e Explicitly} on a line that starts with another [%%].
-  
+
       Everything outside a template is ordinary OCaml code.
-  
+
       OCaml code can also be inserted into a template:
-  
+
       - [<%s code %>] expects [code] to evaluate to a [string], and inserts the
         [string] into the template.
       - A line that begins with [%] in the first column is OCaml code inside the
@@ -1194,12 +1200,12 @@ module Make
         fragments of control-flow constructs.
       - [<% code %>] is a variant of [%] that can be used for short snippets
         within template lines.
-  
+
       The [s] in [<%s code %>] is actually a
       {{:https://caml.inria.fr/pub/docs/manual-ocaml/libref/Printf.html}
       Printf}-style format specification. So, for example, one can print two hex
       digits using [<%02X code %>].
-  
+
       [<%s code %>] automatically escapes the result of [code] using
       {!Dream.html_escape}. This can be suppressed with [!]. [<%s! code %>] prints
       the result of [code] literally. {!Dream.html_escape} is only safe for use in
@@ -1218,33 +1224,33 @@ module Make
   (** Generates a [<form>] tag and an [<input>] tag with a CSRF token, suitable
       for use with {!Dream.val-form} and {!Dream.val-multipart}. For example, in
       a template,
-  
+
       {[
         <%s! Dream.form_tag ~action:"/" request %>
           <input name="my.field">
         </form>
       ]}
-  
+
       expands to
-  
+
       {[
         <form method="POST" action="/">
           <input name="dream.csrf" type="hidden" value="a-token">
           <input name="my.field">
         </form>
       ]}
-  
+
       [~method] sets the method used to submit the form. The default is [`POST].
-  
+
       [~target] adds a [target] attribute. For example, [~target:"_blank"] causes
       the browser to submit the form in a new tab or window.
-  
+
       Pass [~enctype:`Multipart_form_data] for a file upload form.
-  
+
       [~csrf_token:false] suppresses generation of the [dream.csrf] field. *)
 
   (** {1 Middleware}
-  
+
       Interesting built-in middlewares are scattered throughout the various
       sections of these docs, according to where they are relevant. This section
       contains only generic middleware combinators. *)
@@ -1252,7 +1258,7 @@ module Make
   val no_middleware : middleware
   (** Does nothing but call its inner handler. Useful for disabling middleware
       conditionally during application startup:
-  
+
       {[
         if development then
           my_middleware
@@ -1263,7 +1269,7 @@ module Make
   val pipeline : middleware list -> middleware
   (** Combines a sequence of middlewares into one, such that these two lines are
       equivalent:
-  
+
       {v
   Dream.pipeline [middleware_1; middleware_2] @@ handler
       v}
@@ -1312,7 +1318,7 @@ module Make
 
   val get : string -> handler -> route
   (** Forwards [`GET] requests for the given path to the handler.
-  
+
       {[
         Dream.get "/home" home_template
       ]} *)
@@ -1342,36 +1348,36 @@ module Make
   val scope : string -> middleware list -> route list -> route
   (** Groups routes under a common path prefix and middlewares. Middlewares are
       run only if a route matches.
-  
+
       {[
         Dream.scope "/api" [Dream.origin_referrer_check] [
           Dream.get  "/widget" get_widget_handler;
           Dream.post "/widget" set_widget_handler;
         ]
       ]}
-  
+
       To prefix routes without applying any more middleware, use the empty list:
-  
+
       {[
         Dream.scope "/api" [] [
           (* ...routes... *)
         ]
       ]}
-  
+
       To apply middleware without prefixing the routes, use ["/"]:
-  
+
       {[
         Dream.scope "/" [Dream.origin_referrer_check] [
           (* ...routes... *)
         ]
       ]}
-  
+
       Scopes can be nested. *)
 
   val no_route : route
   (** A dummy value of type {!type-route} that is completely ignored by the
       router. Useful for disabling routes conditionally during application start:
-  
+
       {[
         Dream.router [
           if development then
@@ -1387,7 +1393,7 @@ module Make
   (** Serves static files from a local directory. See example
       {{:https://github.com/aantron/dream/tree/master/example/f-static#files}
       [f-static]}.
-  
+
       {[
         let () =
           Dream.run
@@ -1396,20 +1402,20 @@ module Make
           }
           @@ Dream.not_found
       ]}
-  
+
       [Dream.static local_directory] validates the path substituted for [**] by
       checking that it is (1) relative, (2) does not contain parent directory
       references ([..]), and (3) does not contain separators ([/]) within
       components. If these checks fail, {!Dream.static} responds with [404 Not
       Found].
-  
+
       If the checks succeed, {!Dream.static} calls [~loader local_directory path
       request], where
-  
+
       - [local_directory] is the same directory that was passed to
         {!Dream.static}.
       - [path] is what was substituted for [**].
-  
+
       The default loader is {!Dream.from_filesystem}. See example
       {{:https://github.com/aantron/dream/tree/master/example/w-one-binary#files}
       [w-one-binary]} for a loader that serves files from memory instead. *)
@@ -1421,35 +1427,35 @@ module Make
       [text/html; charset=utf-8], so as to match {!Dream.html}. *)
 
   (** {1 Sessions}
-  
+
       Dream's default sessions contain string-to-string dictionaries for
       application data. For example, a logged-in session might have
-  
+
       {[
         [
           "user", "someone";
           "lang", "ut-OP";
         ]
       ]}
-  
+
       Sessions also have three pieces of metadata:
-  
+
       - {!Dream.session_id}
       - {!Dream.session_label}
       - {!Dream.session_expires_at}
-  
+
       There are several back ends, which decide where the sessions are stored:
-  
+
       - {!Dream.memory_sessions}
       - {!Dream.sql_sessions}
       - {!Dream.cookie_sessions}
-  
+
       All requests passing through session middleware are assigned a session,
       either an existing one, or a new empty session, known as a {e pre-session}.
-  
+
       When a session is at least half-expired, it is automatically refreshed by
       the next request that it is assigned to.
-  
+
       See example
       {{:https://github.com/aantron/dream/tree/master/example/b-session#files}
       [b-session]} \[{{:http://dream.as/b-session} playground}\]. *)
@@ -1490,7 +1496,7 @@ module Make
   (** Time at which the session will expire. *)
 
   (** {1 Flash messages}
-  
+
       Flash messages are short strings which are stored in cookies during one
       request, to be made available for the next request. The typical use case is
       to provide form feedback across a redirect. See example
@@ -1507,14 +1513,14 @@ module Make
   (** Adds a flash message to the request. *)
 
   (** {1 Logging}
-  
+
       Dream uses the {{:https://erratique.ch/software/logs/doc/Logs/index.html}
       Logs} library internally, and integrates with all other libraries in your
       project that are also using it. Dream provides a slightly simplified
       interface to Logs.
-  
+
       All log output is written to [stderr].
-  
+
       See
       {{:https://cheatsheetseries.owasp.org/cheatsheets/Logging_Cheat_Sheet.html}
       OWASP {i Logging Cheat Sheet}} for a survey of security topics related to
@@ -1535,7 +1541,7 @@ module Make
       See example
       {{:https://github.com/aantron/dream/tree/master/example/a-log#files}
       [a-log]} \[{{:http://dream.as/a-log} playground}\].
-  
+
       {[
         Dream.log "Counter is now: %i" counter;
         Dream.log "Client: %s" (Dream.client request);
@@ -1560,12 +1566,12 @@ module Make
       level} is [`Error] or higher. See example
       {{:https://github.com/aantron/dream/tree/master/example/a-log#files}
       [a-log]}.
-  
+
       {[
         Dream.error (fun log ->
           log ~request "My message, details: %s" details);
       ]}
-  
+
       Pass the optional argument [~request] to {!Dream.val-error} to associate the
       message with a specific request. If not passed, {!Dream.val-error} will try
       to guess the request. This usually works, but not always. *)
@@ -1587,22 +1593,22 @@ module Make
 
   val sub_log : ?level:[< log_level] -> string -> sub_log
   (** Creates a new sub-log with the given name. For example,
-  
+
       {[
         let log = Dream.sub_log "myapp.ajax"
       ]}
-  
+
       ...creates a logger that can be used like {!Dream.val-error} and the other
       default loggers, but prefixes ["myapp.ajax"] to each log message.
-  
+
       {[
         log.error (fun log -> log ~request "Validation failed")
       ]}
-  
+
       [?level] sets the log level threshold for this sub-log only. If not
       provided, falls back to the global log level set by {!Dream.initialize_log},
       unless {!Dream.set_log_level} is used.
-  
+
       See [README] of example
       {{:https://github.com/aantron/dream/tree/master/example/a-log#files}
       [a-log]}. *)
@@ -1615,26 +1621,26 @@ module Make
     unit ->
     unit
   (** Initializes Dream's log with the given settings.
-  
+
       Dream initializes its logging back end lazily. This is so that if a Dream
       Web app is linked into a larger binary, it does not affect that binary's
       runtime unless the Web app runs.
-  
+
       This also allows the Web app to give logging settings explicitly by calling
       {!Dream.initialize_log} early in program execution.
-  
+
       - [~backtraces:true], the default, causes Dream to call
         {{:http://caml.inria.fr/pub/docs/manual-ocaml/libref/Printexc.html#VALrecord_backtrace}
         [Printexc.record_backtrace]}, which makes exception backtraces available.
-  
+
       - [~async_exception_hook:true], the default, causes Dream to set
         {{:https://ocsigen.org/lwt/latest/api/Lwt#VALasync_exception_hook}
         [Lwt.async_exception_hook]} so as to forward all asynchronous exceptions
         to the logger, and not terminate the process.
-  
+
       - [~level] sets the log level threshold for the entire binary. The default
         is [`Info].
-  
+
       - [~enable:false] disables Dream logging completely. This can help sanitize
         output during testing. *)
 
@@ -1642,27 +1648,27 @@ module Make
   (** Set the log level threshold of the given sub-log. *)
 
   (** {1 Errors}
-  
+
       Dream passes all errors to a single error handler, including...
-  
+
       - exceptions and rejected promises from the application,
       - [4xx] and [5xx] responses from the application, and
       - lower-level errors, such as TLS handshake failures and malformed HTTP
         requests.
-  
+
       This allows customizing error handling in one place. Including low-level
       errors prevents leakage of strings in automatic responses not under the
       application's control, for full internationalization.
-  
+
       Use {!Dream.error_template} and pass the result to {!Dream.run}
       [~error_handler] to customize the error template.
-  
+
       The default error handler logs errors and its template generates
       completely empty responses, to avoid internationalization issues. In
       addition, this conforms to the recommendations in
       {{:https://cheatsheetseries.owasp.org/cheatsheets/Error_Handling_Cheat_Sheet.html}
       OWASP {i Error Handling Cheat Sheet}}.
-  
+
       For full control over error handling, including logging, you can define an
       {!type-error_handler} directly. *)
 
@@ -1677,75 +1683,75 @@ module Make
     will_send_response : bool;
   }
   (** Detailed errors. Ignore this type if only using {!Dream.error_template}.
-  
+
       {ul
       {li
       [condition] describes the error itself.
-  
+
       - [`Response] is a [4xx] or [5xx] response.
       - [`String] is an error that has only an English-language description.
       - [`Exn] is a caught exception.
-  
+
       The default error handler logs [`Exn] and [`Strings], but not [`Response].
       [`Response] is assumed to be deliberate, and already logged by
       {!Dream.logger}.
       }
-  
+
       {li
       [layer] is which part of the Dream stack detected the error.
-  
+
       - [`App] is for application exceptions, rejections, and [4xx], [5xx]
         responses.
       - [`HTTP] and [`HTTP2] are for low-level HTTP protocol errors.
       - [`TLS] is for low-level TLS errors.
       - [`WebSocket] is for WebSocket errors.
-  
+
       The default error handler uses this to just prepend a prefix to its log
       messages.
       }
-  
+
       {li
       [caused_by] is the party likely to have caused the error.
-  
+
       - [`Server] errors suggest bugs, and correspond to [5xx] responses.
       - [`Client] errors suggest user errors, network failure, buggy clients, and
         sometimes attacks. They correspond to [4xx] responses.
       }
-  
+
       {li
       [request] is a {!type-request} associated with the error, if there is one.
-  
+
       As examples, a request might not be available if the error is a failure to
       parse an HTTP/1.1 request at all, or failure to perform a TLS handshake.
-  
+
       In case of a [`WebSocket] error, the request is the client's original
       request to establish the WebSocket connection.
       }
-  
+
       {li
       [response] is a {!type-response} that was either generated by the
       application, or suggested by the error context.
-  
+
       In case of a [`WebSocket] error, the response is the application's original
       connection agreement response created by {!Dream.val-websocket}.
-  
+
       See {!Dream.error_template}.
       }
-  
+
       {li
       [client] is the client's address, if available. For example,
       [127.0.0.1:56001].
       }
-  
+
       {li
       Suggested {{!type-log_level} log level} for the error. Usually [`Error] for
       [`Server] errors and [`Warning] for client errors.
       }
-  
+
       {li
       [will_send_response] is [true] in error contexts where Dream will still send
       a response.
-  
+
       The default handler calls the error template only if [will_send_response] is
       [true].
       }} *)
@@ -1753,14 +1759,14 @@ module Make
   type error_handler = error -> response option promise
   (** Error handlers log errors and convert them into responses. Ignore if using
       {!Dream.error_template}.
-  
+
       If the error has [will_send_response = true], the error handler must return
       a response. Otherwise, it should return [None].
-  
+
       If an error handler raises an exception or rejects, Dream logs this
       secondary failure. If the error context needs a response, Dream responds
       with an empty [500 Internal Server Error].
-  
+
       The behavior of Dream's default error handler is described at
       {!Dream.type-error}. *)
   (* TODO Get rid of the option? *)
@@ -1770,7 +1776,7 @@ module Make
   (** Builds an {!error_handler} from a template. See example
       {{:https://github.com/aantron/dream/tree/master/example/9-error#files}
       [9-error]} \[{{:http://dream.as/9-error} playground}\].
-  
+
       {[
         let my_error_handler =
           Dream.error_template (fun _error debug_dump suggested_response ->
@@ -1779,15 +1785,15 @@ module Make
               | Some string -> Dream.html_escape string
               | None -> Dream.status_to_string (Dream.status suggested_response)
             in
-  
+
             suggested_response
             |> Dream.with_body body
             |> Lwt.return)
       ]}
-  
+
       The error's context suggests a response. Usually, its only valid field is
       {!Dream.val-status}.
-  
+
       - If the error is an exception or rejection from the application, the status
         is usually [500 Internal Server Error].
       - In case of a [4xx] or [5xx] response from the application, that response
@@ -1795,15 +1801,15 @@ module Make
       - For low-level errors, the status is typically either [400 Bad Request] if
         the error was likely caused by the client, and [500 Internal Server Error]
         if the error was likely caused by the server.
-  
+
       [~debug_dump] is a multi-line string containing an error description, stack
       trace, request state, and other information.
-  
+
       When an error occurs in a context where a response is not possible, the
       template is not called. In some contexts where the template is called, the
       status code is hardcoded, but the headers and body from the template's
       response will still be used.
-  
+
       If the template itself raises an exception or rejects, an empty [500
       Internal Server Error] will be sent in contexts that require a response. *)
 
@@ -1817,7 +1823,7 @@ module Make
   (** Removes the given prefix from the path in each request, and adds it to the
       request prefix. Responds with [502 Bad Gateway] if the path does not have
       the expected prefix.
-  
+
       This is for applications that are not running at the root ([/]) of their
       domain. The default is ["/"], for no prefix. After [with_site_prefix],
       routing is done relative to the prefix, and the prefix is also necessary for
@@ -1832,7 +1838,7 @@ module Make
       elements and quoted attribute values. Implements
       {{:https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html#rule-1-html-encode-before-inserting-untrusted-data-into-html-element-content}
       OWASP {i Cross-Site Scripting Prevention Cheat Sheet RULE #1}}.
-  
+
       This function is {e not} suitable for use with unquoted attributes, inline
       scripts, or inline CSS. See {i Security} in example
       {{:https://github.com/aantron/dream/tree/master/example/7-template#security}
@@ -1852,12 +1858,12 @@ module Make
 
   val to_percent_encoded : ?international:bool -> string -> string
   (** Percent-encodes a string for use inside a URL.
-  
+
       [~international] is [true] by default, and causes non-ASCII bytes to be
       preserved. This is suitable for display to users, including in [<a href="">]
       attributes, which are displayed in browser status lines. See
       {{:https://tools.ietf.org/html/rfc3987} RFC 3987}.
-  
+
       Use [~international:false] for compatibility with legacy systems, or when
       constructing URL fragments from untrusted input that may not match the
       interface language(s) the user expects. In the latter case, similar letters
@@ -1897,7 +1903,7 @@ module Make
       optional arguments correspond to the attributes specified in
       {{:https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-07#section-5.3}
       RFC 6265bis §5.3}, and are documented at {!Dream.set_cookie}.
-  
+
       Does not apply any encoding to names and values. Be sure to encode so that
       names and values cannot contain `=`, `;`, or newline characters. *)
 
@@ -1909,7 +1915,7 @@ module Make
       Empty components are dropped, except for the last. This function does not
       distinguish between absolute and relative paths, and is only meant for
       routes and request targets. So,
-  
+
       - [Dream.from_path ""] becomes [[]].
       - [Dream.from_path "/"] becomes [[""]].
       - [Dream.from_path "abc"] becomes [["abc"]].
@@ -1917,7 +1923,7 @@ module Make
       - [Dream.from_path "abc/"] becomes [["abc"; ""]].
       - [Dream.from_path "a%2Fb"] becomes [["a/b"]].
       - [Dream.from_path "a//b"] becomes [["a"; "b"]].
-  
+
       This function is not for use on full targets, because they may incldue query
       strings ([?]), and {!Dream.from_path} does not treat them specially. Split
       query strings off with {!Dream.split_target} first. *)
@@ -1946,20 +1952,20 @@ module Make
   val set_secret : ?old_secrets:string list -> string -> middleware
   (** Sets a key to be used for cryptographic operations, such as signing CSRF
       tokens and encrypting cookies.
-  
+
       If this middleware is not used, a random secret is generated the first time
       a secret is needed. The random secret persists for the lifetime of the
       process. This is useful for quick testing and prototyping, but it means that
       restarts of the server will not be able to verify tokens or decrypt cookies
       generated by earlier runs, and multiple servers in a load-balancing
       arrangement will not accept each others' tokens and cookies.
-  
+
       For production, generate a 256-bit key with
-  
+
       {[
         Dream.to_base64url (Dream.random 32)
       ]}
-  
+
       [~old_secrets] is a list of previous secrets that will not be used for
       encryption or signing, but will still be tried for decryption and
       verification. This is intended for key rotation. A medium-sized Web app
@@ -1974,18 +1980,18 @@ module Make
   val encrypt : ?associated_data:string -> request -> string -> string
   (** Signs and encrypts the string using the [~secret] in the request. See
       {!Dream.run} for setting [~secret].
-  
+
       [~associated_data] is included when computing the signature, but not
       included in the ciphertext. It can be used like a “salt,” to force
       ciphertexts from different contexts to be distinct, and dependent on the
       context.
-  
+
       For example, when {!Dream.set_cookie} encrypts cookie values, it internally
       passes the cookie names in the associated data. This makes it impossible (or
       impractical) to use the ciphertext from one cookie as the value of another.
       The associated data will not match, and the value will be recognized as
       invalid.
-  
+
       The cipher presently used by Dream is
       {{:https://tools.ietf.org/html/rfc5116#section-5.2} AEAD_AES_256_GCM}. It
       will be replaced by
@@ -1993,7 +1999,7 @@ module Make
       latter is {{:https://github.com/mirage/mirage-crypto/issues/111} available}.
       The upgrade will be transparent, because Dream includes a cipher rotation
       scheme.
-  
+
       The cipher is suitable for encrypted transmissions and storing data other
       than credentials. For password or other credential storage, see package
       {{:https://github.com/Khady/ocaml-argon2} [argon2]}. See
@@ -2004,13 +2010,13 @@ module Make
 
   val decrypt : ?associated_data:string -> request -> string -> string option
   (** Reverses {!Dream.encrypt}.
-  
+
       To support secret rotation, the decryption secrets with which decryption is
       attempted are [(~secret)::(~old_secrets)]. See the descriptions of [~secret]
       and [~old_secrets] in {!Dream.run}. *)
 
   (** {1 Variables}
-  
+
       Dream supports user-defined per-message variables for use by middlewares. *)
 
   type 'a field

From c132456293629f84621c8073e3dd7cc1fb1411e4 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Tue, 21 Feb 2023 14:17:01 +0100
Subject: [PATCH 225/312] Update vendored dependencies

---
 src/http/shared/websocket.ml | 5 ++---
 src/vendor/gluten            | 2 +-
 src/vendor/httpaf            | 2 +-
 src/vendor/paf               | 2 +-
 src/vendor/websocketaf       | 2 +-
 5 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/src/http/shared/websocket.ml b/src/http/shared/websocket.ml
index d4434844..0d4f6750 100644
--- a/src/http/shared/websocket.ml
+++ b/src/http/shared/websocket.ml
@@ -235,12 +235,11 @@ let websocket_handler stream socket =
   in
   outgoing_loop ();
 
-  Websocketaf.Server_connection.{frame; eof}
+  Websocketaf.Websocket_connection.{frame; eof}
 
   (* TODO The equality between server and client input handlers is not
      exposed in the websocketaf API.
      https://github.com/anmonteiro/websocketaf/issues/39. *)
 let client_websocket_handler :
     Stream.stream -> Websocketaf.Wsd.t ->
-      Websocketaf.Client_connection.input_handlers =
-  Obj.magic websocket_handler
+      Websocketaf.Websocket_connection.input_handlers = websocket_handler
diff --git a/src/vendor/gluten b/src/vendor/gluten
index c4a764f4..f8b88c48 160000
--- a/src/vendor/gluten
+++ b/src/vendor/gluten
@@ -1 +1 @@
-Subproject commit c4a764f40ef6d28feacd21b760b628c6c0500711
+Subproject commit f8b88c485beb473af97de7b39461fb60a56cff3f
diff --git a/src/vendor/httpaf b/src/vendor/httpaf
index 97692a43..7189cd28 160000
--- a/src/vendor/httpaf
+++ b/src/vendor/httpaf
@@ -1 +1 @@
-Subproject commit 97692a43b8aad12857bd7639a89cd69cb2ca3b19
+Subproject commit 7189cd28e21203117f0c8e2347ae9a2fe0e0c157
diff --git a/src/vendor/paf b/src/vendor/paf
index c04f1a38..873e7b3b 160000
--- a/src/vendor/paf
+++ b/src/vendor/paf
@@ -1 +1 @@
-Subproject commit c04f1a3897348baff643e2520b00da0cb74b0d6a
+Subproject commit 873e7b3b00d60ac6d6b1a59c3e867f27f357369b
diff --git a/src/vendor/websocketaf b/src/vendor/websocketaf
index 248a2cb0..44c54291 160000
--- a/src/vendor/websocketaf
+++ b/src/vendor/websocketaf
@@ -1 +1 @@
-Subproject commit 248a2cb0dcffa51996c3ad7643577dce75d67454
+Subproject commit 44c54291a09ec271b256cdce3b3999315131c750

From b5187b8ca44337597b4e5872b47897f3a0903c6e Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Tue, 21 Feb 2023 14:27:37 +0100
Subject: [PATCH 226/312] Add missing function in dream-mirage's signature

---
 src/mirage/mirage.mli | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index d5753c96..177860ed 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -367,6 +367,16 @@ module Make
 
   (**/**)
 
+  (**/**)
+  val path : request -> string list
+  [@@ocaml.deprecated
+  "Router path access is being removed from the API. Comment at
+  https://github.com/aantron/dream/issues
+  "]
+  (** Parsed request path. For example, ["foo"; "bar"]. *)
+  (* TODO If not removing this, move it to section Routing. *)
+  (**/**)
+
   val set_client : request -> string -> unit
   (** Replaces the client. See {!Dream.val-client}. *)
 

From bc58f05af938d26a64f6cf01f28ce749c81b393e Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Tue, 21 Feb 2023 15:04:59 +0100
Subject: [PATCH 227/312] Add js_of_ocaml as a test dependency

---
 dream.opam | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dream.opam b/dream.opam
index f9565f92..cc04ff31 100644
--- a/dream.opam
+++ b/dream.opam
@@ -84,6 +84,8 @@ depends: [
   "caqti-driver-postgresql" {with-test}
   "caqti-driver-sqlite3" {with-test}
   "crunch" {with-test}
+  "js_of_ocaml" {with-test}
+  "js_of_ocaml-ppx" {with-test}
   "lambdasoup" {with-test}
   "ppx_expect" {with-test & >= "v0.15.0"}  # Formatting changes.
   "ppx_yojson_conv" {with-test}

From 235ac215cd4ed4f389c246833a5b840f564d7d1a Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Tue, 21 Feb 2023 15:07:40 +0100
Subject: [PATCH 228/312] CI: pass opam file lint on helper opam files

---
 docs/web/web.opam                         | 2 ++
 example/z-docker-opam/hello.opam          | 2 ++
 example/z-playground/playground.opam      | 2 ++
 example/z-playground/runtime/runtime.opam | 2 ++
 4 files changed, 8 insertions(+)

diff --git a/docs/web/web.opam b/docs/web/web.opam
index 4d60507d..3604b58b 100644
--- a/docs/web/web.opam
+++ b/docs/web/web.opam
@@ -1,5 +1,7 @@
 opam-version: "2.0"
 
+synopsis: "Dream docs"
+maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 depends: [
   "lambdasoup"
   "odoc"
diff --git a/example/z-docker-opam/hello.opam b/example/z-docker-opam/hello.opam
index 0e1b1ac4..884be05d 100644
--- a/example/z-docker-opam/hello.opam
+++ b/example/z-docker-opam/hello.opam
@@ -1,5 +1,7 @@
 opam-version: "2.0"
 
+synopsis: "Dream Docker Hello World example"
+maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 depends: [
   "ocaml" {>= "4.08.0"}
   "dune" {>= "2.0.0"}
diff --git a/example/z-playground/playground.opam b/example/z-playground/playground.opam
index d3ea9a3e..7f30f2f8 100644
--- a/example/z-playground/playground.opam
+++ b/example/z-playground/playground.opam
@@ -1,5 +1,7 @@
 opam-version: "2.0"
 
+synopsis: "Dream playground"
+maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 depends: [
   "caqti-driver-sqlite3"
   "dune" {>= "2.0.0"}
diff --git a/example/z-playground/runtime/runtime.opam b/example/z-playground/runtime/runtime.opam
index 0d2ac090..a1c814d2 100644
--- a/example/z-playground/runtime/runtime.opam
+++ b/example/z-playground/runtime/runtime.opam
@@ -1,5 +1,7 @@
 opam-version: "2.0"
 
+synopsis: "Dream playground runtime"
+maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 depends: [
   "dream"
   "dune" {>= "2.0.0"}

From dd83bf3760c4327c5a286fe25b8a35c0204ab13a Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 9 Mar 2023 09:18:51 +0300
Subject: [PATCH 229/312] Caqti: latest infix operators require 1.8.0

---
 dream.opam | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dream.opam b/dream.opam
index cc04ff31..7fb83a60 100644
--- a/dream.opam
+++ b/dream.opam
@@ -50,7 +50,7 @@ depends: [
   "base-unix"
   "bigarray-compat"
   "camlp-streams"
-  "caqti" {>= "1.7.0"}  # Infix operators.
+  "caqti" {>= "1.8.0"}  # Infix operators.
   "caqti-lwt"
   "conf-libev" {os != "win32"}
   "cstruct" {>= "6.0.0"}

From fedfd2bec794bbbf820edd83ead64bde513d5b44 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 9 Mar 2023 09:23:44 +0300
Subject: [PATCH 230/312] Revert "Add dependency to dream-pure in dream-httpaf"

This reverts commit f7b45a357e5bd0170a512e8ace431de8e7600d4f. There is
already a dependency.
---
 dream-httpaf.opam | 1 -
 1 file changed, 1 deletion(-)

diff --git a/dream-httpaf.opam b/dream-httpaf.opam
index edc02d1f..d75f97de 100644
--- a/dream-httpaf.opam
+++ b/dream-httpaf.opam
@@ -20,7 +20,6 @@ depends: [
   "lwt_ssl"
   "ocaml" {>= "4.08.0"}
   "ssl" {>= "0.5.8"}  # Ssl.get_negotiated_alpn_protocol.
-  "dream-pure" {= version}
 
   # Currently vendored.
   # "gluten"

From ec533f2306b43f5de70f146615fdba7937d60b8f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 9 Mar 2023 09:35:03 +0300
Subject: [PATCH 231/312] Add new Gluten deps to dream-httpaf.opam

---
 dream-httpaf.opam | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dream-httpaf.opam b/dream-httpaf.opam
index d75f97de..0376b1df 100644
--- a/dream-httpaf.opam
+++ b/dream-httpaf.opam
@@ -38,6 +38,8 @@ depends: [
   "digestif" {>= "0.7.2"}  # websocket/af, sha1, default implementation.
   "faraday" {>= "0.6.1"}
   "faraday-lwt-unix"
+  "ke" {>= "0.5"}  # Gluten.
+  "lwt_ssl" {>= "1.2.0"}  # Gluten.
   "psq"  # h2.
   "result"  # http/af, websocket/af.
 ]

From 206f19d0ed3eb28d3f0059ef0eabbe56416a5830 Mon Sep 17 00:00:00 2001
From: Lucas Pluvinage <lucas@tarides.com>
Date: Mon, 3 Jan 2022 18:06:44 +0100
Subject: [PATCH 232/312] Missing dependencies in dream-mirage

@aantron: replaced mirage-stack with tcpip due to
9cc4a6e76d2273316bffd1ef0ce4cbf528ccd5c8.
---
 dream-mirage.opam | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dream-mirage.opam b/dream-mirage.opam
index e07c9690..c9b5829d 100644
--- a/dream-mirage.opam
+++ b/dream-mirage.opam
@@ -47,7 +47,6 @@ author: "Anton Bachin <antonbachin@yahoo.com>"
 maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 
 depends: [
-  "dream"
   "dune" {>= "2.7.0"}
   "dream"
   "dream-pure"
@@ -58,6 +57,8 @@ depends: [
   "digestif" {>= "1.0.0"}
   "lwt"
   "tls-mirage"
+  "mirage-time"
+  "tcpip"
   "lwt_ppx" {>= "1.2.2"}
   "letsencrypt" {>= "0.3.0"}
   "emile" {>= "1.1"}

From 30690bc299976665c76b256f23c7fb42da7c98b7 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 9 Mar 2023 09:52:49 +0300
Subject: [PATCH 233/312] dream-mirage.opam: alphabetize dependencies

---
 dream-mirage.opam | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/dream-mirage.opam b/dream-mirage.opam
index c9b5829d..782f3ae0 100644
--- a/dream-mirage.opam
+++ b/dream-mirage.opam
@@ -47,21 +47,21 @@ author: "Anton Bachin <antonbachin@yahoo.com>"
 maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 
 depends: [
-  "dune" {>= "2.7.0"}
-  "dream"
-  "dream-pure"
-  "dream-httpaf"
   "bigarray-compat"
-  "mimic"
   "bigstringaf"
   "digestif" {>= "1.0.0"}
+  "dream"
+  "dream-httpaf"
+  "dream-pure"
+  "dune" {>= "2.7.0"}
+  "emile" {>= "1.1"}
+  "letsencrypt" {>= "0.3.0"}
   "lwt"
-  "tls-mirage"
+  "lwt_ppx" {>= "1.2.2"}
+  "mimic"
   "mirage-time"
   "tcpip"
-  "lwt_ppx" {>= "1.2.2"}
-  "letsencrypt" {>= "0.3.0"}
-  "emile" {>= "1.1"}
+  "tls-mirage"
 ]
 
 build: [

From 80be1362df9ec954641d81cdaf68d5cf7c374f1f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 9 Mar 2023 12:05:58 +0300
Subject: [PATCH 234/312] Rewind h2 to a commit that is compatible with paf

Follow-on to #249.
---
 src/vendor/h2 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vendor/h2 b/src/vendor/h2
index fceaad2c..2cc4f100 160000
--- a/src/vendor/h2
+++ b/src/vendor/h2
@@ -1 +1 @@
-Subproject commit fceaad2cfa198f090b47d6d72cb1c4ea9dee4a07
+Subproject commit 2cc4f100455aea00911d773db4d6c1d7f11d42f5

From 1ed0a6fed5432967a64ba871508459dc96649d1e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 9 Mar 2023 13:30:25 +0300
Subject: [PATCH 235/312] Revert "Mirage: add mirage-stack dependency"

This reverts commit 3eb7834bb18fcba8c8f065e69b9a23ec31d91fad. This
commit made a change to dream.opam that was probably intended for
dream-mirage.opam, and was probably wrong for that file anyway, due to
mirage-stack being deprecated.

Added in #249.
---
 dream.opam | 1 -
 1 file changed, 1 deletion(-)

diff --git a/dream.opam b/dream.opam
index 7fb83a60..c7a322f0 100644
--- a/dream.opam
+++ b/dream.opam
@@ -65,7 +65,6 @@ depends: [
   "lwt_ssl"
   "logs" {>= "0.5.0"}
   "magic-mime"
-  "mirage-stack"
   "mirage-clock" {>= "3.0.0"}  # now_d_ps : unit -> int * int64.
   "mirage-crypto" {>= "0.8.1"}  # AES-256-GCM.
   "mirage-crypto-rng"

From c8d2db0f637c9c8902c69648038b81bde78b14ec Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 10 Mar 2023 14:15:03 +0300
Subject: [PATCH 236/312] Rename vendored modules to avoid build conflicts

Fixes #198.
Closes #200.
---
 src/http/adapt.ml            |  3 ++
 src/http/dune                | 14 +++---
 src/http/error_handler.ml    |  4 ++
 src/http/error_handler.mli   |  4 ++
 src/http/http.ml             |  8 +++
 src/http/shared/dune         |  2 +-
 src/http/shared/websocket.ml |  2 +
 src/vendor/dune              | 96 ++++++++++++++++++------------------
 src/vendor/gluten            |  2 +-
 src/vendor/h2                |  2 +-
 src/vendor/httpaf            |  2 +-
 src/vendor/websocketaf       |  2 +-
 12 files changed, 81 insertions(+), 60 deletions(-)

diff --git a/src/http/adapt.ml b/src/http/adapt.ml
index 34aeb6ff..8f822c0b 100644
--- a/src/http/adapt.ml
+++ b/src/http/adapt.ml
@@ -5,6 +5,9 @@
 
 
 
+module Httpaf = Dream_httpaf_.Httpaf
+module H2 = Dream_h2.H2
+
 module Stream = Dream_pure.Stream
 module Message = Dream_pure.Message
 
diff --git a/src/http/dune b/src/http/dune
index cac581f3..76ddb65e 100644
--- a/src/http/dune
+++ b/src/http/dune
@@ -8,17 +8,17 @@
   dream-pure
   dream.server
   dream-httpaf
-  dream-httpaf.gluten
-  dream-httpaf.gluten-lwt-unix
-  dream-httpaf.h2
-  dream-httpaf.h2-lwt-unix
-  dream-httpaf.httpaf
-  dream-httpaf.httpaf-lwt-unix
+  dream-httpaf.dream-gluten
+  dream-httpaf.dream-gluten-lwt-unix
+  dream-httpaf.dream-h2
+  dream-httpaf.dream-h2-lwt-unix
+  dream-httpaf.dream-httpaf_
+  dream-httpaf.dream-httpaf_-lwt-unix
   lwt
   lwt.unix
   lwt_ssl
   ssl
-  dream-httpaf.websocketaf
+  dream-httpaf.dream-websocketaf
  )
  (preprocess (pps lwt_ppx))
  (instrumentation (backend bisect_ppx)))
diff --git a/src/http/error_handler.ml b/src/http/error_handler.ml
index e24c28a4..d371ea75 100644
--- a/src/http/error_handler.ml
+++ b/src/http/error_handler.ml
@@ -5,6 +5,10 @@
 
 
 
+module Httpaf = Dream_httpaf_.Httpaf
+module H2 = Dream_h2.H2
+module Websocketaf = Dream_websocketaf.Websocketaf
+
 module Catch = Dream__server.Catch
 module Error_template = Dream__server.Error_template
 module Method = Dream_pure.Method
diff --git a/src/http/error_handler.mli b/src/http/error_handler.mli
index 285469b5..f2a06390 100644
--- a/src/http/error_handler.mli
+++ b/src/http/error_handler.mli
@@ -5,6 +5,10 @@
 
 
 
+module Httpaf = Dream_httpaf_.Httpaf
+module H2 = Dream_h2.H2
+module Websocketaf = Dream_websocketaf.Websocketaf
+
 module Catch = Dream__server.Catch
 module Log = Dream__server.Log
 module Message = Dream_pure.Message
diff --git a/src/http/http.ml b/src/http/http.ml
index 85414dc3..10d56902 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -5,6 +5,14 @@
 
 
 
+module Gluten = Dream_gluten.Gluten
+module Gluten_lwt_unix = Dream_gluten_lwt_unix.Gluten_lwt_unix
+module Httpaf = Dream_httpaf_.Httpaf
+module Httpaf_lwt_unix = Dream_httpaf__lwt_unix.Httpaf_lwt_unix
+module H2 = Dream_h2.H2
+module H2_lwt_unix = Dream_h2_lwt_unix.H2_lwt_unix
+module Websocketaf = Dream_websocketaf.Websocketaf
+
 module Catch = Dream__server.Catch
 module Helpers = Dream__server.Helpers
 module Log = Dream__server.Log
diff --git a/src/http/shared/dune b/src/http/shared/dune
index 07668721..31b3c06a 100644
--- a/src/http/shared/dune
+++ b/src/http/shared/dune
@@ -4,7 +4,7 @@
  (libraries
   bigstringaf
   dream-pure
-  dream-httpaf.websocketaf
+  dream-httpaf.dream-websocketaf
  )
  (preprocess (pps lwt_ppx))
  (instrumentation (backend bisect_ppx)))
diff --git a/src/http/shared/websocket.ml b/src/http/shared/websocket.ml
index 0d4f6750..358d5774 100644
--- a/src/http/shared/websocket.ml
+++ b/src/http/shared/websocket.ml
@@ -5,6 +5,8 @@
 
 
 
+module Websocketaf = Dream_websocketaf.Websocketaf
+
 module Stream = Dream_pure.Stream
 
 
diff --git a/src/vendor/dune b/src/vendor/dune
index 19a00e7f..cae56083 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -36,8 +36,8 @@
 
 (subdir gluten/lib
  (library
-  (name gluten)
-  (public_name dream-httpaf.gluten)
+  (name dream_gluten)
+  (public_name dream-httpaf.dream-gluten)
   (libraries
    bigstringaf
    faraday
@@ -45,19 +45,19 @@
 
 (subdir gluten/lwt
  (library
-  (name gluten_lwt)
-  (public_name dream-httpaf.gluten-lwt)
+  (name dream_gluten_lwt)
+  (public_name dream-httpaf.dream-gluten-lwt)
   (libraries
-   dream-httpaf.gluten
+   dream-httpaf.dream-gluten
    lwt)))
 
 (subdir gluten/lwt-unix
  (library
-  (name gluten_lwt_unix)
-  (public_name dream-httpaf.gluten-lwt-unix)
+  (name dream_gluten_lwt_unix)
+  (public_name dream-httpaf.dream-gluten-lwt-unix)
   (libraries
    faraday-lwt-unix
-   dream-httpaf.gluten-lwt
+   dream-httpaf.dream-gluten-lwt
    lwt.unix
    (select
     ssl_io.ml
@@ -75,44 +75,44 @@
 
 (subdir websocketaf/lib
  (library
-  (name websocketaf)
-  (public_name dream-httpaf.websocketaf)
+  (name dream_websocketaf)
+  (public_name dream-httpaf.dream-websocketaf)
   (libraries
    angstrom
    base64
    bigstringaf
    faraday
-   dream-httpaf.gluten
-   httpaf
+   dream-httpaf.dream-gluten
+   dream-httpaf.dream-httpaf_
    result)))
 
 (subdir websocketaf/lwt
  (library
-  (name websocketaf_lwt)
-  (public_name dream-httpaf.websocketaf-lwt)
+  (name dream_websocketaf_lwt)
+  (public_name dream-httpaf.dream-websocketaf-lwt)
   (libraries
    base64
    digestif.ocaml
-   dream-httpaf.gluten-lwt
+   dream-httpaf.dream-gluten-lwt
    lwt
-   dream-httpaf.websocketaf)))
+   dream-httpaf.dream-websocketaf)))
 
 (subdir websocketaf/lwt-unix
  (library
-  (name websocketaf_lwt_unix)
-  (public_name dream-httpaf.websocketaf-lwt-unix)
+  (name dream_websocketaf_lwt_unix)
+  (public_name dream-httpaf.dream-websocketaf-lwt-unix)
   (libraries
    faraday-lwt-unix
-   dream-httpaf.gluten-lwt-unix
+   dream-httpaf.dream-gluten-lwt-unix
    lwt.unix
-   dream-httpaf.websocketaf-lwt)))
+   dream-httpaf.dream-websocketaf-lwt)))
 
 
 
 (subdir httpaf/lib
  (library
-  (name httpaf)
-  (public_name dream-httpaf.httpaf)
+  (name dream_httpaf_)
+  (public_name dream-httpaf.dream-httpaf_)
   (libraries
    angstrom
    bigstringaf
@@ -121,23 +121,23 @@
 
 (subdir httpaf/lwt
  (library
-  (name httpaf_lwt)
-  (public_name dream-httpaf.httpaf-lwt)
+  (name dream_httpaf__lwt)
+  (public_name dream-httpaf.dream-httpaf_-lwt)
   (libraries
-   dream-httpaf.gluten
-   dream-httpaf.gluten-lwt
-   dream-httpaf.httpaf
+   dream-httpaf.dream-gluten
+   dream-httpaf.dream-gluten-lwt
+   dream-httpaf.dream-httpaf_
    lwt)))
 
 (subdir httpaf/lwt-unix
  (library
-  (name httpaf_lwt_unix)
-  (public_name dream-httpaf.httpaf-lwt-unix)
+  (name dream_httpaf__lwt_unix)
+  (public_name dream-httpaf.dream-httpaf_-lwt-unix)
   (libraries
    faraday-lwt-unix
-   dream-httpaf.gluten-lwt-unix
-   dream-httpaf.httpaf
-   dream-httpaf.httpaf-lwt
+   dream-httpaf.dream-gluten-lwt-unix
+   dream-httpaf.dream-httpaf_
+   dream-httpaf.dream-httpaf_-lwt
    lwt.unix)))
 
 
@@ -150,8 +150,8 @@
 
 (subdir h2/hpack/src
  (library
-  (name hpack)
-  (public_name dream-httpaf.hpack)
+  (name dream_hpack)
+  (public_name dream-httpaf.dream-hpack)
   (libraries
    angstrom
    faraday))
@@ -165,35 +165,35 @@
 
 (subdir h2/lib
  (library
-  (name h2)
-  (public_name dream-httpaf.h2)
+  (name dream_h2)
+  (public_name dream-httpaf.dream-h2)
   (libraries
    angstrom
    base64
    bigstringaf
    faraday
-   dream-httpaf.hpack
-   dream-httpaf.httpaf
+   dream-httpaf.dream-hpack
+   dream-httpaf.dream-httpaf_
    psq
    result)))
 
 (subdir h2/lwt
  (library
-  (name h2_lwt)
-  (public_name dream-httpaf.h2-lwt)
+  (name dream_h2_lwt)
+  (public_name dream-httpaf.dream-h2-lwt)
   (libraries
-   dream-httpaf.gluten
-   dream-httpaf.gluten-lwt
+   dream-httpaf.dream-gluten
+   dream-httpaf.dream-gluten-lwt
    lwt
-   dream-httpaf.h2)))
+   dream-httpaf.dream-h2)))
 
 (subdir h2/lwt-unix
  (library
-  (name h2_lwt_unix)
-  (public_name dream-httpaf.h2-lwt-unix)
+  (name dream_h2_lwt_unix)
+  (public_name dream-httpaf.dream-h2-lwt-unix)
   (libraries
    faraday-lwt-unix
-   dream-httpaf.gluten-lwt-unix
-   dream-httpaf.h2
-   dream-httpaf.h2-lwt
+   dream-httpaf.dream-gluten-lwt-unix
+   dream-httpaf.dream-h2
+   dream-httpaf.dream-h2-lwt
    lwt.unix)))
diff --git a/src/vendor/gluten b/src/vendor/gluten
index f8b88c48..b2aea887 160000
--- a/src/vendor/gluten
+++ b/src/vendor/gluten
@@ -1 +1 @@
-Subproject commit f8b88c485beb473af97de7b39461fb60a56cff3f
+Subproject commit b2aea88753540b4b315d9a242ccb2cdafd18dd91
diff --git a/src/vendor/h2 b/src/vendor/h2
index 2cc4f100..c372c736 160000
--- a/src/vendor/h2
+++ b/src/vendor/h2
@@ -1 +1 @@
-Subproject commit 2cc4f100455aea00911d773db4d6c1d7f11d42f5
+Subproject commit c372c736a278e3c5e4ea75adecb2cd400cedcdb1
diff --git a/src/vendor/httpaf b/src/vendor/httpaf
index 7189cd28..340ba8c6 160000
--- a/src/vendor/httpaf
+++ b/src/vendor/httpaf
@@ -1 +1 @@
-Subproject commit 7189cd28e21203117f0c8e2347ae9a2fe0e0c157
+Subproject commit 340ba8c662a2b1cf3305cd46ad4eee65a6de9b7d
diff --git a/src/vendor/websocketaf b/src/vendor/websocketaf
index 44c54291..7530659c 160000
--- a/src/vendor/websocketaf
+++ b/src/vendor/websocketaf
@@ -1 +1 @@
-Subproject commit 44c54291a09ec271b256cdce3b3999315131c750
+Subproject commit 7530659c8a3fd1beed5197acde37dc7a20acd0af

From c39461529350bbf975f34dd1ea5eb7866ed5c15b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Mar 2023 15:39:50 +0300
Subject: [PATCH 237/312] Continue renaming for Mirage version

---
 src/mirage/adapt.ml         |  3 ++
 src/mirage/dune             |  8 +++---
 src/mirage/error_handler.ml | 55 +++++++++++++++++++------------------
 src/mirage/mirage.ml        |  4 +++
 src/vendor/dune             | 23 ++++++++--------
 src/vendor/paf              |  2 +-
 6 files changed, 51 insertions(+), 44 deletions(-)

diff --git a/src/mirage/adapt.ml b/src/mirage/adapt.ml
index 499a9d59..36ef4fee 100644
--- a/src/mirage/adapt.ml
+++ b/src/mirage/adapt.ml
@@ -6,6 +6,9 @@
    XXX(dinosaure): same as [src/http/adapt.ml] without [address_to_string] - which
    depends on [Unix]. *)
 
+module Httpaf = Dream_httpaf_.Httpaf
+module H2 = Dream_h2.H2
+
 module Dream = Dream_pure
 module Stream = Dream_pure.Stream
 
diff --git a/src/mirage/dune b/src/mirage/dune
index 61f5ee3d..4cc14e8f 100644
--- a/src/mirage/dune
+++ b/src/mirage/dune
@@ -9,12 +9,12 @@
   dream.server
   dream.certificate
   dream-pure
-  dream-httpaf.h2
+  dream-httpaf.dream-h2
   lwt
   tcpip
-  dream-mirage.paf
-  dream-mirage.paf.alpn
-  dream-mirage.paf.mirage
+  dream-mirage.dream-paf
+  dream-mirage.dream-paf.alpn
+  dream-mirage.dream-paf.mirage
  )
  (preprocess (pps lwt_ppx))
  (instrumentation (backend bisect_ppx)))
diff --git a/src/mirage/error_handler.ml b/src/mirage/error_handler.ml
index e8da12ec..958a01a8 100644
--- a/src/mirage/error_handler.ml
+++ b/src/mirage/error_handler.ml
@@ -1,3 +1,4 @@
+module Httpaf = Dream_httpaf_.Httpaf
 
 module Catch = Dream__server.Catch
 module Error_template = Dream__server.Error_template
@@ -21,26 +22,26 @@ let select_log = function
   let dump (error : Catch.error) =
     let buffer = Buffer.create 4096 in
     let p format = Printf.bprintf buffer format in
-  
+
     begin match error.condition with
     | `Response response ->
       let status = Message.status response in
       p "%i %s\n" (Status.status_to_int status) (Status.status_to_string status)
-  
+
     | `String "" ->
       p "(Library error without description payload)\n"
-  
+
     | `String string ->
       p "%s\n" string
-  
+
     | `Exn exn ->
       let backtrace = Printexc.get_backtrace () in
       p "%s\n" (Printexc.to_string exn);
       backtrace |> Log.iter_backtrace (p "%s\n")
     end;
-  
+
     p "\n";
-  
+
     let layer =
       match error.layer with
       | `TLS -> "TLS library"
@@ -49,13 +50,13 @@ let select_log = function
       | `WebSocket -> "WebSocket library"
       | `App -> "Application"
     in
-  
+
     let blame =
       match error.caused_by with
       | `Server -> "Server"
       | `Client -> "Client"
     in
-  
+
     let severity =
       match error.severity with
       | `Error -> "Error"
@@ -63,26 +64,26 @@ let select_log = function
       | `Info -> "Info"
       | `Debug -> "Debug"
     in
-  
+
     p "From: %s\n" layer;
     p "Blame: %s\n" blame;
     p "Severity: %s" severity;
-  
+
     begin match error.client with
     | None -> ()
     | Some client -> p "\n\nClient: %s" client
     end;
-  
+
     begin match error.request with
     | None -> ()
     | Some request ->
       p "\n\n%s %s"
         (Method.method_to_string (Message.method_ request))
         (Message.target request);
-  
+
       Message.all_headers request
       |> List.iter (fun (name, value) -> p "\n%s: %s" name value);
-  
+
       Message.fold_fields (fun name value first ->
         if first then
           p "\n";
@@ -92,23 +93,23 @@ let select_log = function
         request
       |> ignore
     end;
-  
+
     Buffer.contents buffer
 
   let customize template (error : Catch.error) =
 
     (* First, log the error. *)
-  
+
     begin match error.condition with
     | `Response _ -> ()
     | `String _ | `Exn _ as condition ->
-  
+
       let client =
         match error.client with
         | None -> ""
         | Some client ->  " (" ^ client ^ ")"
       in
-  
+
       let layer =
         match error.layer with
         | `TLS -> ["TLS" ^ client]
@@ -117,7 +118,7 @@ let select_log = function
         | `WebSocket -> ["WebSocket" ^ client]
         | `App -> []
       in
-  
+
       let description, backtrace =
         match condition with
         | `String string -> string, ""
@@ -125,26 +126,26 @@ let select_log = function
           let backtrace = Printexc.get_backtrace () in
           Printexc.to_string exn, backtrace
       in
-  
+
       let message = String.concat ": " (layer @ [description]) in
-  
+
       select_log error.severity (fun log ->
         log ?request:error.request "%s" message);
       backtrace |> Log.iter_backtrace (fun line ->
         select_log error.severity (fun log ->
           log ?request:error.request "%s" line))
     end;
-  
+
     (* If Dream will not send a response for this error, we are done after
        logging. Otherwise, if debugging is enabled, gather a bunch of information.
        Then, call the template, and return the response. *)
-  
+
     if not error.will_send_response then
       Lwt.return_none
-  
+
     else
       let debug_dump = dump error in
-  
+
       let response =
         match error.condition with
         | `Response response -> response
@@ -156,7 +157,7 @@ let select_log = function
           in
           Message.response ~status Stream.empty Stream.null
       in
-  
+
       (* No need to catch errors when calling the template, because every call
          site of the error handler already has error handlers for catching double
          faults. *)
@@ -168,7 +169,7 @@ let select_log = function
       Message.response ~status:`Internal_Server_Error Stream.empty Stream.null
     | `Client ->
       Message.response ~status:`Bad_Request Stream.empty Stream.null
-  
+
 let default_template _error _debug_dump response =
   Lwt.return response
 
@@ -241,7 +242,7 @@ let respond_with_option f =
     (fun () ->
       Message.response ~status:`Internal_Server_Error Stream.empty Stream.null
       |> Lwt.return)
-  
+
 
 let app user's_error_handler = fun error ->
   respond_with_option (fun () -> user's_error_handler error)
diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index f2c6bb9b..6f5f5a09 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -1,3 +1,7 @@
+module Httpaf = Dream_httpaf_.Httpaf
+module Paf_mirage = Dream_paf_mirage.Paf_mirage
+module Alpn = Dream_alpn.Alpn
+
 module Catch = Dream__server.Catch
 module Error_template = Dream__server.Error_template
 module Method = Dream_pure.Method
diff --git a/src/vendor/dune b/src/vendor/dune
index cae56083..97aba743 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -4,32 +4,31 @@
 
 (subdir paf/lib
  (library
-  (name paf)
-  (public_name dream-mirage.paf)
+  (name dream_paf)
+  (public_name dream-mirage.dream-paf)
   (modules paf)
   (libraries faraday bigstringaf ke mimic)))
 
 (subdir paf/lib
  (library
-  (name alpn)
-  (public_name dream-mirage.paf.alpn)
+  (name dream_alpn)
+  (public_name dream-mirage.dream-paf.alpn)
   (modules alpn)
-  (libraries dream-mirage.paf dream-httpaf.httpaf dream-httpaf.h2)))
+  (libraries dream-mirage.dream-paf dream-httpaf.dream-httpaf_ dream-httpaf.dream-h2)))
 
 (subdir paf/lib
  (library
-  (name paf_mirage)
-  (public_name dream-mirage.paf.mirage)
+  (name dream_paf_mirage)
+  (public_name dream-mirage.dream-paf.mirage)
   (modules paf_mirage)
-  (libraries tcpip dream-mirage.paf tls-mirage mirage-time dream-mirage.paf.alpn)))
+  (libraries tcpip dream-mirage.dream-paf tls-mirage mirage-time dream-mirage.dream-paf.alpn)))
 
 (subdir paf/lib
  (library
-  (name le)
-  (wrapped false)
-  (public_name dream-mirage.paf.le)
+  (name dream_le)
+  (public_name dream-mirage.dream-paf.le)
   (modules lE)
-  (libraries tcpip dream-httpaf.httpaf dream-mirage.paf mirage-time duration tls-mirage emile
+  (libraries tcpip dream-httpaf.httpaf dream-mirage.dream-paf mirage-time duration tls-mirage emile
     letsencrypt)))
 
 
diff --git a/src/vendor/paf b/src/vendor/paf
index 873e7b3b..14059ba8 160000
--- a/src/vendor/paf
+++ b/src/vendor/paf
@@ -1 +1 @@
-Subproject commit 873e7b3b00d60ac6d6b1a59c3e867f27f357369b
+Subproject commit 14059ba85f886cf6babe9b8ce5a53a5b1f1bf3e8

From ac4a4e077b05c5f17098462db6421f138fa0ac77 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Mar 2023 15:50:01 +0300
Subject: [PATCH 238/312] Clean up src/vendor/dune

- Do a topological sort of the vendored libraries.
- Place each dependency on its own line for diff-friendliness.
---
 src/vendor/dune | 181 +++++++++++++++++++++++++++++-------------------
 1 file changed, 109 insertions(+), 72 deletions(-)

diff --git a/src/vendor/dune b/src/vendor/dune
index 97aba743..853b6a9b 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -2,37 +2,6 @@
 
 
 
-(subdir paf/lib
- (library
-  (name dream_paf)
-  (public_name dream-mirage.dream-paf)
-  (modules paf)
-  (libraries faraday bigstringaf ke mimic)))
-
-(subdir paf/lib
- (library
-  (name dream_alpn)
-  (public_name dream-mirage.dream-paf.alpn)
-  (modules alpn)
-  (libraries dream-mirage.dream-paf dream-httpaf.dream-httpaf_ dream-httpaf.dream-h2)))
-
-(subdir paf/lib
- (library
-  (name dream_paf_mirage)
-  (public_name dream-mirage.dream-paf.mirage)
-  (modules paf_mirage)
-  (libraries tcpip dream-mirage.dream-paf tls-mirage mirage-time dream-mirage.dream-paf.alpn)))
-
-(subdir paf/lib
- (library
-  (name dream_le)
-  (public_name dream-mirage.dream-paf.le)
-  (modules lE)
-  (libraries tcpip dream-httpaf.httpaf dream-mirage.dream-paf mirage-time duration tls-mirage emile
-    letsencrypt)))
-
-
-
 (subdir gluten/lib
  (library
   (name dream_gluten)
@@ -40,7 +9,8 @@
   (libraries
    bigstringaf
    faraday
-   ke)))
+   ke
+  )))
 
 (subdir gluten/lwt
  (library
@@ -48,7 +18,8 @@
   (public_name dream-httpaf.dream-gluten-lwt)
   (libraries
    dream-httpaf.dream-gluten
-   lwt)))
+   lwt
+  )))
 
 (subdir gluten/lwt-unix
  (library
@@ -67,77 +38,84 @@
     tls_io.ml
     from
     (tls.lwt -> tls_io.real.ml)
-    (-> tls_io.dummy.ml)))
+    (-> tls_io.dummy.ml))
+  )
   (modules gluten_lwt_unix tls_io ssl_io)))
 
 
 
-(subdir websocketaf/lib
+(subdir httpaf/lib
  (library
-  (name dream_websocketaf)
-  (public_name dream-httpaf.dream-websocketaf)
+  (name dream_httpaf_)
+  (public_name dream-httpaf.dream-httpaf_)
   (libraries
    angstrom
-   base64
    bigstringaf
    faraday
-   dream-httpaf.dream-gluten
-   dream-httpaf.dream-httpaf_
-   result)))
+   result
+  )))
 
-(subdir websocketaf/lwt
+(subdir httpaf/lwt
  (library
-  (name dream_websocketaf_lwt)
-  (public_name dream-httpaf.dream-websocketaf-lwt)
+  (name dream_httpaf__lwt)
+  (public_name dream-httpaf.dream-httpaf_-lwt)
   (libraries
-   base64
-   digestif.ocaml
+   dream-httpaf.dream-gluten
    dream-httpaf.dream-gluten-lwt
+   dream-httpaf.dream-httpaf_
    lwt
-   dream-httpaf.dream-websocketaf)))
+  )))
 
-(subdir websocketaf/lwt-unix
+(subdir httpaf/lwt-unix
  (library
-  (name dream_websocketaf_lwt_unix)
-  (public_name dream-httpaf.dream-websocketaf-lwt-unix)
+  (name dream_httpaf__lwt_unix)
+  (public_name dream-httpaf.dream-httpaf_-lwt-unix)
   (libraries
    faraday-lwt-unix
    dream-httpaf.dream-gluten-lwt-unix
+   dream-httpaf.dream-httpaf_
+   dream-httpaf.dream-httpaf_-lwt
    lwt.unix
-   dream-httpaf.dream-websocketaf-lwt)))
+  )))
 
 
 
-(subdir httpaf/lib
+(subdir websocketaf/lib
  (library
-  (name dream_httpaf_)
-  (public_name dream-httpaf.dream-httpaf_)
+  (name dream_websocketaf)
+  (public_name dream-httpaf.dream-websocketaf)
   (libraries
    angstrom
+   base64
    bigstringaf
    faraday
-   result)))
+   dream-httpaf.dream-gluten
+   dream-httpaf.dream-httpaf_
+   result
+  )))
 
-(subdir httpaf/lwt
+(subdir websocketaf/lwt
  (library
-  (name dream_httpaf__lwt)
-  (public_name dream-httpaf.dream-httpaf_-lwt)
+  (name dream_websocketaf_lwt)
+  (public_name dream-httpaf.dream-websocketaf-lwt)
   (libraries
-   dream-httpaf.dream-gluten
+   base64
+   digestif.ocaml
    dream-httpaf.dream-gluten-lwt
-   dream-httpaf.dream-httpaf_
-   lwt)))
+   lwt
+   dream-httpaf.dream-websocketaf
+  )))
 
-(subdir httpaf/lwt-unix
+(subdir websocketaf/lwt-unix
  (library
-  (name dream_httpaf__lwt_unix)
-  (public_name dream-httpaf.dream-httpaf_-lwt-unix)
+  (name dream_websocketaf_lwt_unix)
+  (public_name dream-httpaf.dream-websocketaf-lwt-unix)
   (libraries
    faraday-lwt-unix
    dream-httpaf.dream-gluten-lwt-unix
-   dream-httpaf.dream-httpaf_
-   dream-httpaf.dream-httpaf_-lwt
-   lwt.unix)))
+   lwt.unix
+   dream-httpaf.dream-websocketaf-lwt
+  )))
 
 
 
@@ -145,7 +123,8 @@
  (executables
   (names gen_huffman gen_static)
   (libraries
-   compiler-libs.common)))
+   compiler-libs.common
+  )))
 
 (subdir h2/hpack/src
  (library
@@ -153,7 +132,8 @@
   (public_name dream-httpaf.dream-hpack)
   (libraries
    angstrom
-   faraday))
+   faraday
+  ))
  (rule
   (targets huffman_table.ml)
   (deps ../util/huffman_table.txt)
@@ -174,7 +154,8 @@
    dream-httpaf.dream-hpack
    dream-httpaf.dream-httpaf_
    psq
-   result)))
+   result
+  )))
 
 (subdir h2/lwt
  (library
@@ -184,7 +165,8 @@
    dream-httpaf.dream-gluten
    dream-httpaf.dream-gluten-lwt
    lwt
-   dream-httpaf.dream-h2)))
+   dream-httpaf.dream-h2
+  )))
 
 (subdir h2/lwt-unix
  (library
@@ -195,4 +177,59 @@
    dream-httpaf.dream-gluten-lwt-unix
    dream-httpaf.dream-h2
    dream-httpaf.dream-h2-lwt
-   lwt.unix)))
+   lwt.unix
+  )))
+
+
+
+(subdir paf/lib
+ (library
+  (name dream_paf)
+  (public_name dream-mirage.dream-paf)
+  (modules paf)
+  (libraries
+   faraday
+   bigstringaf
+   ke
+   mimic
+  )))
+
+(subdir paf/lib
+ (library
+  (name dream_alpn)
+  (public_name dream-mirage.dream-paf.alpn)
+  (modules alpn)
+  (libraries
+   dream-mirage.dream-paf
+   dream-httpaf.dream-httpaf_
+   dream-httpaf.dream-h2
+  )))
+
+(subdir paf/lib
+ (library
+  (name dream_paf_mirage)
+  (public_name dream-mirage.dream-paf.mirage)
+  (modules paf_mirage)
+  (libraries
+   tcpip
+   dream-mirage.dream-paf
+   tls-mirage
+   mirage-time
+   dream-mirage.dream-paf.alpn
+  )))
+
+(subdir paf/lib
+ (library
+  (name dream_le)
+  (public_name dream-mirage.dream-paf.le)
+  (modules lE)
+  (libraries
+   tcpip
+   dream-httpaf.httpaf
+   dream-mirage.dream-paf
+   mirage-time
+   duration
+   tls-mirage
+   emile
+   letsencrypt
+  )))

From 72834957cc5b4cfdfb3ef76d92eed43789fd28bd Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Mar 2023 15:51:46 +0300
Subject: [PATCH 239/312] Adjust grammar in example/1-hello

---
 example/1-hello/README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/example/1-hello/README.md b/example/1-hello/README.md
index 64ef42f6..9de605ca 100644
--- a/example/1-hello/README.md
+++ b/example/1-hello/README.md
@@ -12,9 +12,9 @@ let () =
 
 <br>
 
-It's the absolute minimum Dream server. It responds to all requests with the
-same text. At startup, Dream prints a message to the log, telling you where to
-point your browser. Your terminal probably makes the link clickable.
+It's the minimal Dream server. It responds to all requests with the same text.
+At startup, Dream prints a message to the log, telling you where to point your
+browser. Your terminal probably makes the link clickable.
 
 <pre><code><b>$ cd example/1-hello</b>
 <b>$ npm install esy && npx esy</b>

From f20a335ed9245f404dad4ba43da8ec6a871ec8ac Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Mar 2023 17:13:53 +0300
Subject: [PATCH 240/312] Rename example/w-mirage to w-mirage-letsencrypt

---
 example/{w-mirage => w-mirage-letsencrypt}/README.md    | 0
 example/{w-mirage => w-mirage-letsencrypt}/_tags        | 0
 example/{w-mirage => w-mirage-letsencrypt}/config.ml    | 0
 example/{w-mirage => w-mirage-letsencrypt}/unikernel.ml | 0
 4 files changed, 0 insertions(+), 0 deletions(-)
 rename example/{w-mirage => w-mirage-letsencrypt}/README.md (100%)
 rename example/{w-mirage => w-mirage-letsencrypt}/_tags (100%)
 rename example/{w-mirage => w-mirage-letsencrypt}/config.ml (100%)
 rename example/{w-mirage => w-mirage-letsencrypt}/unikernel.ml (100%)

diff --git a/example/w-mirage/README.md b/example/w-mirage-letsencrypt/README.md
similarity index 100%
rename from example/w-mirage/README.md
rename to example/w-mirage-letsencrypt/README.md
diff --git a/example/w-mirage/_tags b/example/w-mirage-letsencrypt/_tags
similarity index 100%
rename from example/w-mirage/_tags
rename to example/w-mirage-letsencrypt/_tags
diff --git a/example/w-mirage/config.ml b/example/w-mirage-letsencrypt/config.ml
similarity index 100%
rename from example/w-mirage/config.ml
rename to example/w-mirage-letsencrypt/config.ml
diff --git a/example/w-mirage/unikernel.ml b/example/w-mirage-letsencrypt/unikernel.ml
similarity index 100%
rename from example/w-mirage/unikernel.ml
rename to example/w-mirage-letsencrypt/unikernel.ml

From a1ca19e10e5e110bbb0a93e719688f2505ea49a0 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 13 Mar 2023 17:22:55 +0300
Subject: [PATCH 241/312] Add example/w-mirage and build it in CI

---
 .github/workflows/test.yml    | 26 ++++++++++++++++++++++++++
 example/w-mirage/config.ml    | 15 +++++++++++++++
 example/w-mirage/unikernel.ml | 13 +++++++++++++
 3 files changed, 54 insertions(+)
 create mode 100644 example/w-mirage/config.ml
 create mode 100644 example/w-mirage/unikernel.ml

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6af08df2..1634b245 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -93,3 +93,29 @@ jobs:
         else
           exit 1
         fi
+
+  mirage:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        submodules: recursive
+    - run: mkdir ../repo-copy
+    - run: cp -r * ../repo-copy/
+    - uses: avsm/setup-ocaml@v2
+      with:
+        ocaml-compiler: 4.14.x
+    - run: opam install --yes --deps-only ./dream-pure.opam ./dream-httpaf.opam ./dream.opam ./dream-mirage.opam
+    - run: opam install --yes mirage mirage-clock-unix
+    - run: cd example/w-mirage && mv config.ml config.ml.backup
+    - run: cd example/w-mirage && sed -e 's/package "dream-mirage"//' < config.ml.backup > config.ml
+    - run: cd example/w-mirage && opam exec -- mirage configure -t unix
+    - run: cd example/w-mirage && opam exec -- make depends
+    - run: cd example/w-mirage && ls duniverse
+    - run: cp -r ../repo-copy example/w-mirage/duniverse/dream
+    - run: cd example/w-mirage/duniverse && rm -rf ocaml-cstruct logs ke fmt lwt bytes seq mirage-flow sexplib0 ptime tls domain-name ocaml-ipaddr mirage-clock ocplib-endian
+    - run: cd example/w-mirage && mv config.ml.backup config.ml
+    - run: cd example/w-mirage && sed -e 's/(libraries/(libraries dream-mirage/' < dune.build > dune.build.2
+    - run: cd example/w-mirage && mv dune.build.2 dune.build
+    - run: cd example/w-mirage && opam exec -- dune build
+    - run: file example/w-mirage/_build/default/main.exe
diff --git a/example/w-mirage/config.ml b/example/w-mirage/config.ml
new file mode 100644
index 00000000..20cc6d28
--- /dev/null
+++ b/example/w-mirage/config.ml
@@ -0,0 +1,15 @@
+open Mirage
+
+let main =
+  main
+    ~packages:[package "dream-mirage"]
+    "Unikernel.Hello_world"
+    (pclock @-> time @-> stackv4v6 @-> job)
+
+let () =
+  register "hello" [
+    main
+      $ default_posix_clock
+      $ default_time
+      $ generic_stackv4v6 default_network
+  ]
diff --git a/example/w-mirage/unikernel.ml b/example/w-mirage/unikernel.ml
new file mode 100644
index 00000000..ec9be8eb
--- /dev/null
+++ b/example/w-mirage/unikernel.ml
@@ -0,0 +1,13 @@
+module Hello_world
+  (Pclock : Mirage_clock.PCLOCK)
+  (Time : Mirage_time.S)
+  (Stack : Tcpip.Stack.V4V6) =
+struct
+  module Dream =
+    Dream__mirage.Mirage.Make (Pclock) (Time) (Stack)
+
+  let start _pclock _time stack =
+    Dream.http ~port:8080 (Stack.tcp stack)
+    @@ Dream.logger
+    @@ fun _ -> Dream.html "Good morning, world!"
+end

From ff97ac7583cb939caeac35da1210bf18411cb9b9 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 14 Mar 2023 10:23:00 +0300
Subject: [PATCH 242/312] Upgrade ocamlformat

---
 .ocamlformat | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.ocamlformat b/.ocamlformat
index 9eef5779..07055c43 100644
--- a/.ocamlformat
+++ b/.ocamlformat
@@ -1,4 +1,4 @@
-version = 0.20.1
+version = 0.24.1
 profile = conventional
 
 leading-nested-match-parens = false

From 368d84cadd80f93c09dcd64847517979ccbbc560 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 17 Mar 2023 13:14:14 +0300
Subject: [PATCH 243/312] http/af no longer uses result package

---
 dream-httpaf.opam | 2 +-
 src/vendor/dune   | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/dream-httpaf.opam b/dream-httpaf.opam
index 0376b1df..292bd829 100644
--- a/dream-httpaf.opam
+++ b/dream-httpaf.opam
@@ -41,7 +41,7 @@ depends: [
   "ke" {>= "0.5"}  # Gluten.
   "lwt_ssl" {>= "1.2.0"}  # Gluten.
   "psq"  # h2.
-  "result"  # http/af, websocket/af.
+  "result"  # websocket/af.
 ]
 
 build: [
diff --git a/src/vendor/dune b/src/vendor/dune
index 853b6a9b..07b8d615 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -52,7 +52,6 @@
    angstrom
    bigstringaf
    faraday
-   result
   )))
 
 (subdir httpaf/lwt

From 89f21f4427b31914ed685c479cd24312dd5edd54 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 17 Mar 2023 13:15:02 +0300
Subject: [PATCH 244/312] dream-mirage depends on duration

As part of the Let's Encrypt support. It's questionable that this is
built right into core dream-mirage, but that is how it is at this point.
---
 dream-mirage.opam | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dream-mirage.opam b/dream-mirage.opam
index 782f3ae0..e64ee70f 100644
--- a/dream-mirage.opam
+++ b/dream-mirage.opam
@@ -54,6 +54,7 @@ depends: [
   "dream-httpaf"
   "dream-pure"
   "dune" {>= "2.7.0"}
+  "duration"
   "emile" {>= "1.1"}
   "letsencrypt" {>= "0.3.0"}
   "lwt"

From 70bb4332b1423fb134864461b78f7e3d24542e44 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 26 Mar 2023 07:08:30 +0300
Subject: [PATCH 245/312] Basic README for the Mirage example

---
 example/w-mirage/README.md | 61 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 example/w-mirage/README.md

diff --git a/example/w-mirage/README.md b/example/w-mirage/README.md
new file mode 100644
index 00000000..1c2c3746
--- /dev/null
+++ b/example/w-mirage/README.md
@@ -0,0 +1,61 @@
+# `w-mirage`
+
+<br>
+
+This example shows how to build and use Dream with Mirage. Like any Mirage
+starter project, it consists of two files.
+
+`config.ml`:
+
+```ocaml
+open Mirage
+
+let main =
+  main
+    ~packages:[package "dream-mirage"]
+    "Unikernel.Hello_world"
+    (pclock @-> time @-> stackv4v6 @-> job)
+
+let () =
+  register "hello" [
+    main
+      $ default_posix_clock
+      $ default_time
+      $ generic_stackv4v6 default_network
+  ]
+```
+
+`unikernel.ml`:
+
+```ocaml
+module Hello_world
+  (Pclock : Mirage_clock.PCLOCK)
+  (Time : Mirage_time.S)
+  (Stack : Tcpip.Stack.V4V6) =
+struct
+  module Dream =
+    Dream__mirage.Mirage.Make (Pclock) (Time) (Stack)
+
+  let start _pclock _time stack =
+    Dream.http ~port:8080 (Stack.tcp stack)
+    @@ Dream.logger
+    @@ fun _ -> Dream.html "Good morning, world!"
+end
+```
+
+<br>
+
+It's the basic example [**`2-middleware`**](../2-middleware#files) adapted to
+Mirage. To build and run, do
+
+<pre><code><b>$ cd example/w-mirage</b>
+<b>$ opam install mirage</b>
+<b>$ mirage configure -t unix</b>
+<b>$ make depends</b>
+<b>$ dune build</b>
+<b>$ _build/default/main.exe</b>
+</code></pre>
+
+<br>
+
+[Up to the example index](../#examples)

From da15b89c38b18d60a6dfcfcbe8566eeee0f0e882 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 28 Mar 2023 11:44:16 +0300
Subject: [PATCH 246/312] Update release script

---
 Makefile | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 6b7e2f98..8bb20cb5 100644
--- a/Makefile
+++ b/Makefile
@@ -106,12 +106,14 @@ release : clean
 	cp -r $(FILES) $(RELEASE)
 	rm -rf $(RELEASE)/src/vendor/gluten/.github
 	rm -rf $(RELEASE)/src/vendor/gluten/async
+	rm -rf $(RELEASE)/src/vendor/gluten/eio
 	rm -rf $(RELEASE)/src/vendor/gluten/mirage
 	rm -rf $(RELEASE)/src/vendor/gluten/nix
 	rm -rf $(RELEASE)/src/vendor/httpaf/.github
 	rm -rf $(RELEASE)/src/vendor/httpaf/async
 	rm -rf $(RELEASE)/src/vendor/httpaf/benchmarks
 	rm -rf $(RELEASE)/src/vendor/httpaf/certificates
+	rm -rf $(RELEASE)/src/vendor/httpaf/eio
 	rm -rf $(RELEASE)/src/vendor/httpaf/examples
 	rm -rf $(RELEASE)/src/vendor/httpaf/images
 	rm -rf $(RELEASE)/src/vendor/httpaf/lib_test
@@ -120,6 +122,7 @@ release : clean
 	rm -rf $(RELEASE)/src/vendor/h2/.github
 	rm -rf $(RELEASE)/src/vendor/h2/async
 	rm -rf $(RELEASE)/src/vendor/h2/certificates
+	rm -rf $(RELEASE)/src/vendor/h2/eio
 	rm -rf $(RELEASE)/src/vendor/h2/examples
 	rm -rf $(RELEASE)/src/vendor/h2/lib_test
 	rm -rf $(RELEASE)/src/vendor/h2/mirage
@@ -128,23 +131,29 @@ release : clean
 	rm -rf $(RELEASE)/src/vendor/h2/vegeta-plot.png
 	rm -rf $(RELEASE)/src/vendor/websocketaf/.github
 	rm -rf $(RELEASE)/src/vendor/websocketaf/async
+	rm -rf $(RELEASE)/src/vendor/websocketaf/eio
 	rm -rf $(RELEASE)/src/vendor/websocketaf/examples
 	rm -rf $(RELEASE)/src/vendor/websocketaf/lib_test
 	rm -rf $(RELEASE)/src/vendor/websocketaf/mirage
 	rm -rf $(RELEASE)/src/vendor/websocketaf/nix
+	rm -rf $(RELEASE)/src/vendor/paf
 	tar cf $(RELEASE).tar $(RELEASE)
 	ls -l $(RELEASE).tar
 	gzip -9 $(RELEASE).tar
 	mkdir -p _release
 	cp $(RELEASE).tar.gz _release
 	(cd _release && tar xf $(RELEASE).tar.gz)
-	opam remove -y dream-pure dream-httpaf dream
+	opam remove -y dream-pure dream-httpaf dream gluten httpaf h2 websocketaf paf
 	opam pin remove -y dream-pure dream-httpaf dream
 	opam pin add -y --no-action dream-pure _release/$(RELEASE) --kind=path
 	opam pin add -y --no-action dream-httpaf _release/$(RELEASE) --kind=path
 	opam pin add -y --no-action dream _release/$(RELEASE) --kind=path
 	opam reinstall -y --verbose dream
+	@echo Run make release-finish to complete after killing the server
 	cd example/1-hello && dune exec --root . ./hello.exe || true
+
+.PHONY : release-finish
+release-finish :
 	opam remove -y dream-pure dream-httpaf dream
 	opam pin remove -y dream-pure dream-httpaf dream
 	md5sum $(RELEASE).tar.gz

From 1b96d180c9903e99955cae21a5b21101e3bedb2f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 28 Mar 2023 11:54:56 +0300
Subject: [PATCH 247/312] Bump version in docs

---
 docs/web/templates/index.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/web/templates/index.html b/docs/web/templates/index.html
index b6c957c6..5322df37 100644
--- a/docs/web/templates/index.html
+++ b/docs/web/templates/index.html
@@ -32,7 +32,7 @@ <h6>Tidy Web framework for OCaml and ReasonML</h6>
     </div>
 
     <ul>
-      <li><code>1.0.0~alpha4</code></li>
+      <li><code>1.0.0~alpha5</code></li>
       <li><code>opam install dream</code></li>
       <li><a target="_blank" rel="noreferrer noopener" href="https://github.com/aantron/dream">GitHub</a></li>
       <li><a target="_blank" rel="noreferrer noopener" href="https://github.com/aantron/dream/blob/master/src/dream.mli">Edit these docs</a></li>

From c078067e71f0a6bb4a1ec54ae17775b11855c357 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 28 Mar 2023 12:50:20 +0300
Subject: [PATCH 248/312] Add make deps target

---
 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index 8bb20cb5..d50013f1 100644
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,10 @@ build :
 watch :
 	@dune build -p dream-pure,dream-httpaf,dream --no-print-directory -w
 
+.PHONY : deps
+deps :
+	opam install --deps-only --with-test ./dream-pure.opam ./dream-httpaf.opam ./dream.opam
+
 TEST ?= test
 ROOT := $(shell [ -f ../dune-workspace ] && echo .. || echo .)
 

From a6b705ca161b5a2ba3ac51b9213cda3d1a529d67 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 28 Mar 2023 13:08:41 +0300
Subject: [PATCH 249/312] Package dream will require the latest dream-httpaf

---
 dream.opam | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dream.opam b/dream.opam
index c7a322f0..07e14a0b 100644
--- a/dream.opam
+++ b/dream.opam
@@ -54,7 +54,7 @@ depends: [
   "caqti-lwt"
   "conf-libev" {os != "win32"}
   "cstruct" {>= "6.0.0"}
-  "dream-httpaf"
+  "dream-httpaf" {>= "1.0.0~alpha2"}
   "dream-pure" {>= "1.0.0~alpha2"}
   "dune" {>= "2.7.0"}  # --instrument-with.
   "fmt" {>= "0.8.7"}  # `Italic.

From cede19ac1b7183b7c2d66992e353de4470dcd937 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 29 Mar 2023 13:43:25 +0300
Subject: [PATCH 250/312] Upgrade to odoc 2.0.2

---
 docs/web/web.opam        |   6 +--
 docs/web/web.opam.locked | 105 +++++++++++++++++++++------------------
 2 files changed, 57 insertions(+), 54 deletions(-)

diff --git a/docs/web/web.opam b/docs/web/web.opam
index 3604b58b..75555f02 100644
--- a/docs/web/web.opam
+++ b/docs/web/web.opam
@@ -4,10 +4,6 @@ synopsis: "Dream docs"
 maintainer: "Anton Bachin <antonbachin@yahoo.com>"
 depends: [
   "lambdasoup"
-  "odoc"
+  "odoc" {= "2.0.2"}
   "soupault" {>= "2.5.0"}
 ]
-
-pin-depends: [
-  ["odoc.2.0.0~master" "git+https://github.com/aantron/odoc.git#dbb37e20717985edfd8f734e00b9ab6f705d81a4"]
-]
diff --git a/docs/web/web.opam.locked b/docs/web/web.opam.locked
index 7b304864..6068898b 100644
--- a/docs/web/web.opam.locked
+++ b/docs/web/web.opam.locked
@@ -1,71 +1,78 @@
 opam-version: "2.0"
 
 depends: [
-  "ISO8601" {= "0.2.6"}
   "astring" {= "0.8.5"}
   "base-bigarray" {= "base"}
   "base-bytes" {= "base"}
   "base-threads" {= "base"}
   "base-unix" {= "base"}
-  "base64" {= "3.5.0"}
-  "bigarray-compat" {= "1.0.0"}
-  "cmdliner" {= "1.0.4"}
-  "conf-libev" {= "4-11"}
-  "containers" {= "3.3"}
-  "cppo" {= "1.6.7"}
+  "base64" {= "3.5.1"}
+  "bigarray-compat" {= "1.1.0"}
+  "bos" {= "0.2.1"}
+  "camlp-streams" {= "5.0.1"}
+  "camomile" {= "1.0.2"}
+  "cmdliner" {= "1.1.1"}
+  "conf-libev" {= "4-12"}
+  "conf-pkg-config" {= "2"}
+  "containers" {= "3.11"}
+  "cppo" {= "1.6.9"}
   "csexp" {= "1.5.1"}
-  "cstruct" {= "6.0.0"}
-  "dune" {= "2.8.5"}
-  "dune-configurator" {= "2.8.5"}
-  "ezjsonm" {= "1.2.0"}
-  "fileutils" {= "0.6.3"}
-  "fmt" {= "0.8.9"}
+  "cstruct" {= "6.1.1"}
+  "ctypes" {= "0.20.1"}
+  "digestif" {= "1.1.3"}
+  "dune" {= "3.7.0"}
+  "dune-configurator" {= "3.7.0"}
+  "either" {= "1.0.0"}
+  "eqaf" {= "0.9"}
+  "ezjsonm" {= "1.3.0"}
+  "fileutils" {= "0.6.4"}
+  "fmt" {= "0.9.0"}
   "fpath" {= "0.7.3"}
-  "hex" {= "1.4.0"}
-  "jingoo" {= "1.4.3"}
-  "jsonm" {= "1.0.1"}
-  "lambdasoup" {= "0.7.2"}
+  "hex" {= "1.5.0"}
+  "integers" {= "0.7.0"}
+  "jingoo" {= "1.4.4"}
+  "jsonm" {= "1.0.2"}
+  "lambdasoup" {= "1.0.0"}
   "logs" {= "0.7.0"}
-  "lua-ml" {= "0.9.2"}
-  "lwt" {= "5.4.0"}
-  "markup" {= "1.0.0-1"}
-  "menhir" {= "20210310"}
-  "menhirLib" {= "20210310"}
-  "menhirSdk" {= "20210310"}
-  "mmap" {= "1.1.0"}
-  "ocaml" {= "4.12.0"}
-  "ocaml-base-compiler" {= "4.12.0"}
-  "ocaml-compiler-libs" {= "v0.12.3"}
+  "lua-ml" {= "0.9.4"}
+  "lwt" {= "5.6.1"}
+  "markup" {= "1.0.3"}
+  "menhir" {= "20211128"}
+  "menhirLib" {= "20211128"}
+  "menhirSdk" {= "20211128"}
+  "ocaml" {= "4.14.1"}
+  "ocaml-base-compiler" {= "4.14.1"}
+  "ocaml-compiler-libs" {= "v0.12.4"}
   "ocaml-config" {= "2"}
-  "ocaml-migrate-parsetree" {= "2.1.0"}
+  "ocaml-migrate-parsetree" {= "2.4.0"}
   "ocaml-options-vanilla" {= "1"}
-  "ocaml-syntax-shims" {= "1.0.0"}
-  "ocamlbuild" {= "0.14.0"}
-  "ocamlfind" {= "1.9.1"}
-  "ocplib-endian" {= "1.1"}
+  "ocamlbuild" {= "0.14.2"}
+  "ocamlfind" {= "1.9.6"}
+  "ocplib-endian" {= "1.2"}
   "odate" {= "0.6"}
-  "odoc" {= "2.0.0~master"}
+  "odoc" {= "2.0.2"}
+  "odoc-parser" {= "1.0.1"}
+  "otoml" {= "1.0.4"}
   "ppx_derivers" {= "1.2.1"}
   "ppx_deriving" {= "5.2.1"}
-  "ppxlib" {= "0.22.0"}
-  "re" {= "1.9.0"}
+  "ppxlib" {= "0.25.1"}
+  "re" {= "1.10.4"}
   "result" {= "1.5"}
+  "rresult" {= "0.7.0"}
   "seq" {= "base"}
-  "sexplib0" {= "v0.14.0"}
-  "soupault" {= "2.5.0"}
-  "spelll" {= "0.3"}
+  "sexplib0" {= "v0.15.1"}
+  "soupault" {= "4.4.0"}
+  "spelll" {= "0.4"}
   "stdlib-shims" {= "0.3.0"}
-  "stringext" {= "1.6.0"}
-  "toml" {= "7.0.0"}
-  "topkg" {= "1.0.3"}
-  "tsort" {= "2.0.0"}
-  "tyxml" {= "4.4.0"}
+  "topkg" {= "1.0.7"}
+  "tsort" {= "2.1.0"}
+  "tyxml" {= "4.5.0"}
   "uchar" {= "0.0.2"}
-  "uucp" {= "13.0.0"}
-  "uutf" {= "1.0.2"}
-]
-pin-depends: [
-  ["odoc.2.0.0~master" "git+https://github.com/aantron/odoc.git#dbb37e20717985edfd8f734e00b9ab6f705d81a4"]
+  "uucp" {= "15.0.0"}
+  "uutf" {= "1.0.3"}
+  "yaml" {= "3.1.0"}
 ]
 name: "web"
-version: "dev"
+version: "~dev"
+synopsis: "Dream docs"
+maintainer: "Anton Bachin <antonbachin@yahoo.com>"

From 27ee901773fb19ba7d13624670a58992a261ac49 Mon Sep 17 00:00:00 2001
From: Thomas Refis <refis.thomas@gmail.com>
Date: Wed, 29 Mar 2023 19:12:59 +0200
Subject: [PATCH 251/312] nginx example: add a note about the use of websockets
 (#252)

---
 example/w-nginx/README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/example/w-nginx/README.md b/example/w-nginx/README.md
index 43c438c7..df8a15d0 100644
--- a/example/w-nginx/README.md
+++ b/example/w-nginx/README.md
@@ -46,6 +46,7 @@ events {
 The reference for
 [`nginx.conf`](https://github.com/aantron/dream/blob/master/example/w-nginx/nginx.conf)
 can be found [here](https://nginx.org/en/docs/).
+Note that you'll need to put a bit more work into the nginx configuration if you want your application to handle websockets, refer to nginx' [manual](http://nginx.org/en/docs/http/websocket.html) for more details.
 
 Our
 [`docker-compose.yml`](https://github.com/aantron/dream/blob/master/example/w-nginx/docker-compose.yml)

From fcc618d2006ceb06e8640e96fa9ac71ee71a6d3a Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 29 Mar 2023 20:20:06 +0300
Subject: [PATCH 252/312] Rephrase note about nginx WebSocket proxying

---
 example/w-nginx/README.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/example/w-nginx/README.md b/example/w-nginx/README.md
index df8a15d0..904b50d8 100644
--- a/example/w-nginx/README.md
+++ b/example/w-nginx/README.md
@@ -45,8 +45,9 @@ events {
 
 The reference for
 [`nginx.conf`](https://github.com/aantron/dream/blob/master/example/w-nginx/nginx.conf)
-can be found [here](https://nginx.org/en/docs/).
-Note that you'll need to put a bit more work into the nginx configuration if you want your application to handle websockets, refer to nginx' [manual](http://nginx.org/en/docs/http/websocket.html) for more details.
+can be found [here](https://nginx.org/en/docs/). In particular, see
+[this page](http://nginx.org/en/docs/http/websocket.html) for information on
+WebSocket proxying.
 
 Our
 [`docker-compose.yml`](https://github.com/aantron/dream/blob/master/example/w-nginx/docker-compose.yml)

From d2f0016613d1bf75fdfb73ae7c66f179cf6e06e8 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 14 Apr 2023 05:43:02 +0300
Subject: [PATCH 253/312] Upgrade examples to use Dream alpha 5

Resolves #257.
---
 example/1-hello/esy.json                   | 2 +-
 example/2-middleware/esy.json              | 2 +-
 example/3-router/esy.json                  | 2 +-
 example/4-counter/esy.json                 | 2 +-
 example/5-promise/esy.json                 | 2 +-
 example/6-echo/esy.json                    | 2 +-
 example/7-template/esy.json                | 2 +-
 example/8-debug/esy.json                   | 2 +-
 example/9-error/esy.json                   | 2 +-
 example/a-log/esy.json                     | 2 +-
 example/b-session/esy.json                 | 2 +-
 example/c-cookie/esy.json                  | 2 +-
 example/d-form/esy.json                    | 2 +-
 example/e-json/esy.json                    | 2 +-
 example/f-static/esy.json                  | 2 +-
 example/g-upload/esy.json                  | 2 +-
 example/h-sql/esy.json                     | 2 +-
 example/i-graphql/esy.json                 | 2 +-
 example/j-stream/esy.json                  | 2 +-
 example/k-websocket/esy.json               | 2 +-
 example/l-https/esy.json                   | 2 +-
 example/r-fullstack-melange/esy.json       | 2 +-
 example/r-graphql/esy.json                 | 2 +-
 example/r-hello/esy.json                   | 2 +-
 example/r-template-files/esy.json          | 2 +-
 example/r-template-logic/esy.json          | 2 +-
 example/r-template-stream/esy.json         | 2 +-
 example/r-template/esy.json                | 2 +-
 example/r-tyxml/esy.json                   | 2 +-
 example/w-chat/esy.json                    | 2 +-
 example/w-content-security-policy/esy.json | 2 +-
 example/w-esy/esy.json                     | 2 +-
 example/w-flash/esy.json                   | 2 +-
 example/w-fswatch/esy.json                 | 2 +-
 example/w-fullstack-jsoo/esy.json          | 2 +-
 example/w-fullstack-rescript/esy.json      | 2 +-
 example/w-graphql-subscription/esy.json    | 2 +-
 example/w-live-reload/esy.json             | 2 +-
 example/w-long-polling/esy.json            | 2 +-
 example/w-multipart-dump/esy.json          | 2 +-
 example/w-nginx/esy.json                   | 2 +-
 example/w-one-binary/esy.json              | 2 +-
 example/w-postgres/esy.json                | 2 +-
 example/w-query/esy.json                   | 2 +-
 example/w-server-sent-events/esy.json      | 2 +-
 example/w-stress-response/esy.json         | 2 +-
 example/w-stress-websocket-send/esy.json   | 2 +-
 example/w-template-files/esy.json          | 2 +-
 example/w-template-logic/esy.json          | 2 +-
 example/w-template-stream/esy.json         | 2 +-
 example/w-tyxml/esy.json                   | 2 +-
 example/w-upload-stream/esy.json           | 2 +-
 example/z-docker-esy/esy.json              | 2 +-
 example/z-fly/esy.json                     | 2 +-
 example/z-heroku/esy.json                  | 2 +-
 example/z-systemd/esy.json                 | 2 +-
 56 files changed, 56 insertions(+), 56 deletions(-)

diff --git a/example/1-hello/esy.json b/example/1-hello/esy.json
index 41c9595f..503c02bb 100644
--- a/example/1-hello/esy.json
+++ b/example/1-hello/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/2-middleware/esy.json b/example/2-middleware/esy.json
index 546bd721..9b7254e1 100644
--- a/example/2-middleware/esy.json
+++ b/example/2-middleware/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/3-router/esy.json b/example/3-router/esy.json
index 3167c4f5..585ab8f9 100644
--- a/example/3-router/esy.json
+++ b/example/3-router/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/4-counter/esy.json b/example/4-counter/esy.json
index 97d31600..ca6d2f74 100644
--- a/example/4-counter/esy.json
+++ b/example/4-counter/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/5-promise/esy.json b/example/5-promise/esy.json
index a9fd74a8..d4b4ce89 100644
--- a/example/5-promise/esy.json
+++ b/example/5-promise/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/6-echo/esy.json b/example/6-echo/esy.json
index 470f7292..3e312508 100644
--- a/example/6-echo/esy.json
+++ b/example/6-echo/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/7-template/esy.json b/example/7-template/esy.json
index 60a745c2..00c48477 100644
--- a/example/7-template/esy.json
+++ b/example/7-template/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/8-debug/esy.json b/example/8-debug/esy.json
index adb63a24..4811ceb1 100644
--- a/example/8-debug/esy.json
+++ b/example/8-debug/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/9-error/esy.json b/example/9-error/esy.json
index ff9a1e8a..c985d358 100644
--- a/example/9-error/esy.json
+++ b/example/9-error/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/a-log/esy.json b/example/a-log/esy.json
index 9be69450..dfd5f5ef 100644
--- a/example/a-log/esy.json
+++ b/example/a-log/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/b-session/esy.json b/example/b-session/esy.json
index b98e9653..91318cbb 100644
--- a/example/b-session/esy.json
+++ b/example/b-session/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/c-cookie/esy.json b/example/c-cookie/esy.json
index 7423404b..09ef032c 100644
--- a/example/c-cookie/esy.json
+++ b/example/c-cookie/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/d-form/esy.json b/example/d-form/esy.json
index 2d2ed7f8..b08f55f7 100644
--- a/example/d-form/esy.json
+++ b/example/d-form/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/e-json/esy.json b/example/e-json/esy.json
index cddd698e..8fc0eeea 100644
--- a/example/e-json/esy.json
+++ b/example/e-json/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/ppx_yojson_conv": "*",
     "ocaml": "4.12.x"
diff --git a/example/f-static/esy.json b/example/f-static/esy.json
index 9c3c9c19..b4a7d5cd 100644
--- a/example/f-static/esy.json
+++ b/example/f-static/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/g-upload/esy.json b/example/g-upload/esy.json
index fb5ecc06..0a8f612e 100644
--- a/example/g-upload/esy.json
+++ b/example/g-upload/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/h-sql/esy.json b/example/h-sql/esy.json
index 1c9f5ee4..9933f164 100644
--- a/example/h-sql/esy.json
+++ b/example/h-sql/esy.json
@@ -2,7 +2,7 @@
   "dependencies": {
     "@opam/caqti-driver-sqlite3": "^1.7.0",
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/i-graphql/esy.json b/example/i-graphql/esy.json
index d46c6294..ee66c9d6 100644
--- a/example/i-graphql/esy.json
+++ b/example/i-graphql/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/j-stream/esy.json b/example/j-stream/esy.json
index c0b998ee..db15e08f 100644
--- a/example/j-stream/esy.json
+++ b/example/j-stream/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/k-websocket/esy.json b/example/k-websocket/esy.json
index dace1056..3c04daef 100644
--- a/example/k-websocket/esy.json
+++ b/example/k-websocket/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/l-https/esy.json b/example/l-https/esy.json
index 4168783b..efa98b27 100644
--- a/example/l-https/esy.json
+++ b/example/l-https/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/r-fullstack-melange/esy.json b/example/r-fullstack-melange/esy.json
index 7b4431f0..9ac134cc 100644
--- a/example/r-fullstack-melange/esy.json
+++ b/example/r-fullstack-melange/esy.json
@@ -2,7 +2,7 @@
   "name": "fullstack-melange",
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "melange": "melange-re/melange",
diff --git a/example/r-graphql/esy.json b/example/r-graphql/esy.json
index c6ae9151..6f3dcbb4 100644
--- a/example/r-graphql/esy.json
+++ b/example/r-graphql/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-hello/esy.json b/example/r-hello/esy.json
index ce9627a2..641fec7d 100644
--- a/example/r-hello/esy.json
+++ b/example/r-hello/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-template-files/esy.json b/example/r-template-files/esy.json
index 7e4ef8d2..5ce05728 100644
--- a/example/r-template-files/esy.json
+++ b/example/r-template-files/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/r-template-logic/esy.json b/example/r-template-logic/esy.json
index cd9dcb7e..43d32f94 100644
--- a/example/r-template-logic/esy.json
+++ b/example/r-template-logic/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-template-stream/esy.json b/example/r-template-stream/esy.json
index f514d959..a88985e1 100644
--- a/example/r-template-stream/esy.json
+++ b/example/r-template-stream/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-template/esy.json b/example/r-template/esy.json
index cd9dcb7e..43d32f94 100644
--- a/example/r-template/esy.json
+++ b/example/r-template/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "ocaml": "4.12.x"
diff --git a/example/r-tyxml/esy.json b/example/r-tyxml/esy.json
index 3e98c02d..120e4252 100644
--- a/example/r-tyxml/esy.json
+++ b/example/r-tyxml/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/reason": "^3.7.0",
     "@opam/tyxml": "*",
diff --git a/example/w-chat/esy.json b/example/w-chat/esy.json
index ea3c6264..c652eaa3 100644
--- a/example/w-chat/esy.json
+++ b/example/w-chat/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-content-security-policy/esy.json b/example/w-content-security-policy/esy.json
index cc094c37..8aca9746 100644
--- a/example/w-content-security-policy/esy.json
+++ b/example/w-content-security-policy/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-esy/esy.json b/example/w-esy/esy.json
index 41c9595f..503c02bb 100644
--- a/example/w-esy/esy.json
+++ b/example/w-esy/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-flash/esy.json b/example/w-flash/esy.json
index 7a9b116f..129af88b 100644
--- a/example/w-flash/esy.json
+++ b/example/w-flash/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-fswatch/esy.json b/example/w-fswatch/esy.json
index 41c9595f..503c02bb 100644
--- a/example/w-fswatch/esy.json
+++ b/example/w-fswatch/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-fullstack-jsoo/esy.json b/example/w-fullstack-jsoo/esy.json
index 229dbb06..52191a3b 100644
--- a/example/w-fullstack-jsoo/esy.json
+++ b/example/w-fullstack-jsoo/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/js_of_ocaml": "*",
     "@opam/js_of_ocaml-ppx": "*",
diff --git a/example/w-fullstack-rescript/esy.json b/example/w-fullstack-rescript/esy.json
index 96d5ad77..4f0ed5e6 100644
--- a/example/w-fullstack-rescript/esy.json
+++ b/example/w-fullstack-rescript/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-graphql-subscription/esy.json b/example/w-graphql-subscription/esy.json
index ea177aec..f1149b9a 100644
--- a/example/w-graphql-subscription/esy.json
+++ b/example/w-graphql-subscription/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-live-reload/esy.json b/example/w-live-reload/esy.json
index 81d8553a..9787f2e0 100644
--- a/example/w-live-reload/esy.json
+++ b/example/w-live-reload/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/lambdasoup": "*",
     "ocaml": "4.12.x"
diff --git a/example/w-long-polling/esy.json b/example/w-long-polling/esy.json
index 1a5b0b5d..58b3a556 100644
--- a/example/w-long-polling/esy.json
+++ b/example/w-long-polling/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-multipart-dump/esy.json b/example/w-multipart-dump/esy.json
index 2e112412..610a5a51 100644
--- a/example/w-multipart-dump/esy.json
+++ b/example/w-multipart-dump/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-nginx/esy.json b/example/w-nginx/esy.json
index 6e7a2c44..bb3c2993 100644
--- a/example/w-nginx/esy.json
+++ b/example/w-nginx/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-one-binary/esy.json b/example/w-one-binary/esy.json
index 336455f2..7e7fe314 100644
--- a/example/w-one-binary/esy.json
+++ b/example/w-one-binary/esy.json
@@ -2,7 +2,7 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/crunch": "*",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-postgres/esy.json b/example/w-postgres/esy.json
index 872a5e2b..03c2beae 100644
--- a/example/w-postgres/esy.json
+++ b/example/w-postgres/esy.json
@@ -2,7 +2,7 @@
   "dependencies": {
     "@opam/caqti-driver-postgresql": "*",
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-query/esy.json b/example/w-query/esy.json
index 5eeedc80..837b3bd8 100644
--- a/example/w-query/esy.json
+++ b/example/w-query/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-server-sent-events/esy.json b/example/w-server-sent-events/esy.json
index cef5e19e..de876a9c 100644
--- a/example/w-server-sent-events/esy.json
+++ b/example/w-server-sent-events/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-stress-response/esy.json b/example/w-stress-response/esy.json
index 5251d4e0..4630e1f7 100644
--- a/example/w-stress-response/esy.json
+++ b/example/w-stress-response/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-stress-websocket-send/esy.json b/example/w-stress-websocket-send/esy.json
index b39923d6..e55a59d5 100644
--- a/example/w-stress-websocket-send/esy.json
+++ b/example/w-stress-websocket-send/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-template-files/esy.json b/example/w-template-files/esy.json
index 7e4ef8d2..5ce05728 100644
--- a/example/w-template-files/esy.json
+++ b/example/w-template-files/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-template-logic/esy.json b/example/w-template-logic/esy.json
index 60a745c2..00c48477 100644
--- a/example/w-template-logic/esy.json
+++ b/example/w-template-logic/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-template-stream/esy.json b/example/w-template-stream/esy.json
index f9bb7642..31ecfe74 100644
--- a/example/w-template-stream/esy.json
+++ b/example/w-template-stream/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/w-tyxml/esy.json b/example/w-tyxml/esy.json
index 2c5ec3bb..c860aeed 100644
--- a/example/w-tyxml/esy.json
+++ b/example/w-tyxml/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "@opam/tyxml": "*",
     "ocaml": "4.12.x"
diff --git a/example/w-upload-stream/esy.json b/example/w-upload-stream/esy.json
index 35116eb1..42f6d471 100644
--- a/example/w-upload-stream/esy.json
+++ b/example/w-upload-stream/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-docker-esy/esy.json b/example/z-docker-esy/esy.json
index f66aa648..24f65b65 100644
--- a/example/z-docker-esy/esy.json
+++ b/example/z-docker-esy/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-fly/esy.json b/example/z-fly/esy.json
index c1933548..bb064c3f 100644
--- a/example/z-fly/esy.json
+++ b/example/z-fly/esy.json
@@ -5,7 +5,7 @@
   },
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-heroku/esy.json b/example/z-heroku/esy.json
index 5838ec9a..3c40fa05 100644
--- a/example/z-heroku/esy.json
+++ b/example/z-heroku/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },
diff --git a/example/z-systemd/esy.json b/example/z-systemd/esy.json
index f66aa648..24f65b65 100644
--- a/example/z-systemd/esy.json
+++ b/example/z-systemd/esy.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@opam/conf-libssl": "3",
-    "@opam/dream": "1.0.0~alpha4",
+    "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^2.0",
     "ocaml": "4.12.x"
   },

From f0cde1297989a8c988257fbc56fdba337ced71c3 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 14 Apr 2023 10:32:25 +0300
Subject: [PATCH 254/312] Examples: esy.json: upgrade OCaml to 4.14

esy does not seem to offer OCaml 5.0.0 at the moment.

Resolves #256.
---
 example/1-hello/esy.json                   | 4 ++--
 example/2-middleware/esy.json              | 4 ++--
 example/3-router/esy.json                  | 4 ++--
 example/4-counter/esy.json                 | 4 ++--
 example/5-promise/esy.json                 | 4 ++--
 example/6-echo/esy.json                    | 4 ++--
 example/7-template/esy.json                | 4 ++--
 example/8-debug/esy.json                   | 4 ++--
 example/9-error/esy.json                   | 4 ++--
 example/a-log/esy.json                     | 4 ++--
 example/b-session/esy.json                 | 4 ++--
 example/c-cookie/esy.json                  | 4 ++--
 example/d-form/esy.json                    | 4 ++--
 example/e-json/esy.json                    | 4 ++--
 example/f-static/esy.json                  | 4 ++--
 example/g-upload/esy.json                  | 4 ++--
 example/h-sql/esy.json                     | 4 ++--
 example/i-graphql/esy.json                 | 4 ++--
 example/j-stream/esy.json                  | 4 ++--
 example/k-websocket/esy.json               | 4 ++--
 example/l-https/esy.json                   | 4 ++--
 example/r-fullstack-melange/esy.json       | 4 ++--
 example/r-graphql/esy.json                 | 4 ++--
 example/r-hello/esy.json                   | 4 ++--
 example/r-template-files/esy.json          | 4 ++--
 example/r-template-logic/esy.json          | 4 ++--
 example/r-template-stream/esy.json         | 4 ++--
 example/r-template/esy.json                | 4 ++--
 example/r-tyxml/esy.json                   | 4 ++--
 example/w-chat/esy.json                    | 4 ++--
 example/w-content-security-policy/esy.json | 4 ++--
 example/w-esy/esy.json                     | 4 ++--
 example/w-flash/esy.json                   | 4 ++--
 example/w-fswatch/esy.json                 | 4 ++--
 example/w-fullstack-jsoo/esy.json          | 4 ++--
 example/w-fullstack-rescript/esy.json      | 4 ++--
 example/w-graphql-subscription/esy.json    | 4 ++--
 example/w-live-reload/esy.json             | 4 ++--
 example/w-long-polling/esy.json            | 4 ++--
 example/w-multipart-dump/esy.json          | 4 ++--
 example/w-nginx/esy.json                   | 4 ++--
 example/w-one-binary/esy.json              | 4 ++--
 example/w-postgres/esy.json                | 4 ++--
 example/w-query/esy.json                   | 4 ++--
 example/w-server-sent-events/esy.json      | 4 ++--
 example/w-stress-response/esy.json         | 4 ++--
 example/w-stress-websocket-send/esy.json   | 4 ++--
 example/w-template-files/esy.json          | 4 ++--
 example/w-template-logic/esy.json          | 4 ++--
 example/w-template-stream/esy.json         | 4 ++--
 example/w-tyxml/esy.json                   | 4 ++--
 example/w-upload-stream/esy.json           | 4 ++--
 example/z-docker-esy/esy.json              | 4 ++--
 example/z-fly/esy.json                     | 4 ++--
 example/z-heroku/esy.json                  | 4 ++--
 example/z-systemd/esy.json                 | 4 ++--
 56 files changed, 112 insertions(+), 112 deletions(-)

diff --git a/example/1-hello/esy.json b/example/1-hello/esy.json
index 503c02bb..3dc785b3 100644
--- a/example/1-hello/esy.json
+++ b/example/1-hello/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/2-middleware/esy.json b/example/2-middleware/esy.json
index 9b7254e1..6fb945e6 100644
--- a/example/2-middleware/esy.json
+++ b/example/2-middleware/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/3-router/esy.json b/example/3-router/esy.json
index 585ab8f9..93db2682 100644
--- a/example/3-router/esy.json
+++ b/example/3-router/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/4-counter/esy.json b/example/4-counter/esy.json
index ca6d2f74..afc4c40f 100644
--- a/example/4-counter/esy.json
+++ b/example/4-counter/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/5-promise/esy.json b/example/5-promise/esy.json
index d4b4ce89..ca93786e 100644
--- a/example/5-promise/esy.json
+++ b/example/5-promise/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/6-echo/esy.json b/example/6-echo/esy.json
index 3e312508..49d5597f 100644
--- a/example/6-echo/esy.json
+++ b/example/6-echo/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/7-template/esy.json b/example/7-template/esy.json
index 00c48477..ef14e89b 100644
--- a/example/7-template/esy.json
+++ b/example/7-template/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/8-debug/esy.json b/example/8-debug/esy.json
index 4811ceb1..91383720 100644
--- a/example/8-debug/esy.json
+++ b/example/8-debug/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/9-error/esy.json b/example/9-error/esy.json
index c985d358..d582da02 100644
--- a/example/9-error/esy.json
+++ b/example/9-error/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/a-log/esy.json b/example/a-log/esy.json
index dfd5f5ef..1a22a9c0 100644
--- a/example/a-log/esy.json
+++ b/example/a-log/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/b-session/esy.json b/example/b-session/esy.json
index 91318cbb..78bf6712 100644
--- a/example/b-session/esy.json
+++ b/example/b-session/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/c-cookie/esy.json b/example/c-cookie/esy.json
index 09ef032c..4ad51afa 100644
--- a/example/c-cookie/esy.json
+++ b/example/c-cookie/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/d-form/esy.json b/example/d-form/esy.json
index b08f55f7..7932c23a 100644
--- a/example/d-form/esy.json
+++ b/example/d-form/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/e-json/esy.json b/example/e-json/esy.json
index 8fc0eeea..d321e957 100644
--- a/example/e-json/esy.json
+++ b/example/e-json/esy.json
@@ -2,9 +2,9 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/ppx_yojson_conv": "*",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/f-static/esy.json b/example/f-static/esy.json
index b4a7d5cd..c7ec6589 100644
--- a/example/f-static/esy.json
+++ b/example/f-static/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/g-upload/esy.json b/example/g-upload/esy.json
index 0a8f612e..95dbe50e 100644
--- a/example/g-upload/esy.json
+++ b/example/g-upload/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/h-sql/esy.json b/example/h-sql/esy.json
index 9933f164..2b29f1e1 100644
--- a/example/h-sql/esy.json
+++ b/example/h-sql/esy.json
@@ -3,8 +3,8 @@
     "@opam/caqti-driver-sqlite3": "^1.7.0",
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/i-graphql/esy.json b/example/i-graphql/esy.json
index ee66c9d6..5ced7825 100644
--- a/example/i-graphql/esy.json
+++ b/example/i-graphql/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/j-stream/esy.json b/example/j-stream/esy.json
index db15e08f..a4091268 100644
--- a/example/j-stream/esy.json
+++ b/example/j-stream/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/k-websocket/esy.json b/example/k-websocket/esy.json
index 3c04daef..16174a11 100644
--- a/example/k-websocket/esy.json
+++ b/example/k-websocket/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/l-https/esy.json b/example/l-https/esy.json
index efa98b27..8ca91c4a 100644
--- a/example/l-https/esy.json
+++ b/example/l-https/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/r-fullstack-melange/esy.json b/example/r-fullstack-melange/esy.json
index 9ac134cc..9612eb3d 100644
--- a/example/r-fullstack-melange/esy.json
+++ b/example/r-fullstack-melange/esy.json
@@ -3,10 +3,10 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/reason": "^3.7.0",
     "melange": "melange-re/melange",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/r-graphql/esy.json b/example/r-graphql/esy.json
index 6f3dcbb4..0bc13c60 100644
--- a/example/r-graphql/esy.json
+++ b/example/r-graphql/esy.json
@@ -2,9 +2,9 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/reason": "^3.7.0",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/r-hello/esy.json b/example/r-hello/esy.json
index 641fec7d..636d8f3f 100644
--- a/example/r-hello/esy.json
+++ b/example/r-hello/esy.json
@@ -2,9 +2,9 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/reason": "^3.7.0",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/r-template-files/esy.json b/example/r-template-files/esy.json
index 5ce05728..62d26806 100644
--- a/example/r-template-files/esy.json
+++ b/example/r-template-files/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/r-template-logic/esy.json b/example/r-template-logic/esy.json
index 43d32f94..366d43f6 100644
--- a/example/r-template-logic/esy.json
+++ b/example/r-template-logic/esy.json
@@ -2,9 +2,9 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/reason": "^3.7.0",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/r-template-stream/esy.json b/example/r-template-stream/esy.json
index a88985e1..c1d1ccaa 100644
--- a/example/r-template-stream/esy.json
+++ b/example/r-template-stream/esy.json
@@ -2,9 +2,9 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/reason": "^3.7.0",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/r-template/esy.json b/example/r-template/esy.json
index 43d32f94..366d43f6 100644
--- a/example/r-template/esy.json
+++ b/example/r-template/esy.json
@@ -2,9 +2,9 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/reason": "^3.7.0",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/r-tyxml/esy.json b/example/r-tyxml/esy.json
index 120e4252..1dbab688 100644
--- a/example/r-tyxml/esy.json
+++ b/example/r-tyxml/esy.json
@@ -2,11 +2,11 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/reason": "^3.7.0",
     "@opam/tyxml": "*",
     "@opam/tyxml-jsx": "*",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-chat/esy.json b/example/w-chat/esy.json
index c652eaa3..23269b23 100644
--- a/example/w-chat/esy.json
+++ b/example/w-chat/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-content-security-policy/esy.json b/example/w-content-security-policy/esy.json
index 8aca9746..65b82749 100644
--- a/example/w-content-security-policy/esy.json
+++ b/example/w-content-security-policy/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-esy/esy.json b/example/w-esy/esy.json
index 503c02bb..3dc785b3 100644
--- a/example/w-esy/esy.json
+++ b/example/w-esy/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-flash/esy.json b/example/w-flash/esy.json
index 129af88b..fbbb748b 100644
--- a/example/w-flash/esy.json
+++ b/example/w-flash/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-fswatch/esy.json b/example/w-fswatch/esy.json
index 503c02bb..3dc785b3 100644
--- a/example/w-fswatch/esy.json
+++ b/example/w-fswatch/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-fullstack-jsoo/esy.json b/example/w-fullstack-jsoo/esy.json
index 52191a3b..b0d73d70 100644
--- a/example/w-fullstack-jsoo/esy.json
+++ b/example/w-fullstack-jsoo/esy.json
@@ -2,10 +2,10 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/js_of_ocaml": "*",
     "@opam/js_of_ocaml-ppx": "*",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-fullstack-rescript/esy.json b/example/w-fullstack-rescript/esy.json
index 4f0ed5e6..8d952651 100644
--- a/example/w-fullstack-rescript/esy.json
+++ b/example/w-fullstack-rescript/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-graphql-subscription/esy.json b/example/w-graphql-subscription/esy.json
index f1149b9a..c26fb1f5 100644
--- a/example/w-graphql-subscription/esy.json
+++ b/example/w-graphql-subscription/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-live-reload/esy.json b/example/w-live-reload/esy.json
index 9787f2e0..9a08ed7f 100644
--- a/example/w-live-reload/esy.json
+++ b/example/w-live-reload/esy.json
@@ -2,9 +2,9 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/lambdasoup": "*",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-long-polling/esy.json b/example/w-long-polling/esy.json
index 58b3a556..671c94c4 100644
--- a/example/w-long-polling/esy.json
+++ b/example/w-long-polling/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-multipart-dump/esy.json b/example/w-multipart-dump/esy.json
index 610a5a51..e540fdf2 100644
--- a/example/w-multipart-dump/esy.json
+++ b/example/w-multipart-dump/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-nginx/esy.json b/example/w-nginx/esy.json
index bb3c2993..ab240865 100644
--- a/example/w-nginx/esy.json
+++ b/example/w-nginx/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-one-binary/esy.json b/example/w-one-binary/esy.json
index 7e7fe314..ac2c6bd9 100644
--- a/example/w-one-binary/esy.json
+++ b/example/w-one-binary/esy.json
@@ -3,8 +3,8 @@
     "@opam/conf-libssl": "3",
     "@opam/crunch": "*",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-postgres/esy.json b/example/w-postgres/esy.json
index 03c2beae..73548f67 100644
--- a/example/w-postgres/esy.json
+++ b/example/w-postgres/esy.json
@@ -3,8 +3,8 @@
     "@opam/caqti-driver-postgresql": "*",
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-query/esy.json b/example/w-query/esy.json
index 837b3bd8..06844909 100644
--- a/example/w-query/esy.json
+++ b/example/w-query/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-server-sent-events/esy.json b/example/w-server-sent-events/esy.json
index de876a9c..18f27f94 100644
--- a/example/w-server-sent-events/esy.json
+++ b/example/w-server-sent-events/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-stress-response/esy.json b/example/w-stress-response/esy.json
index 4630e1f7..57ae886c 100644
--- a/example/w-stress-response/esy.json
+++ b/example/w-stress-response/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-stress-websocket-send/esy.json b/example/w-stress-websocket-send/esy.json
index e55a59d5..54c4570b 100644
--- a/example/w-stress-websocket-send/esy.json
+++ b/example/w-stress-websocket-send/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-template-files/esy.json b/example/w-template-files/esy.json
index 5ce05728..62d26806 100644
--- a/example/w-template-files/esy.json
+++ b/example/w-template-files/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-template-logic/esy.json b/example/w-template-logic/esy.json
index 00c48477..ef14e89b 100644
--- a/example/w-template-logic/esy.json
+++ b/example/w-template-logic/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-template-stream/esy.json b/example/w-template-stream/esy.json
index 31ecfe74..93462f4d 100644
--- a/example/w-template-stream/esy.json
+++ b/example/w-template-stream/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-tyxml/esy.json b/example/w-tyxml/esy.json
index c860aeed..59c2bd0f 100644
--- a/example/w-tyxml/esy.json
+++ b/example/w-tyxml/esy.json
@@ -2,9 +2,9 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
+    "@opam/dune": "^3.0",
     "@opam/tyxml": "*",
-    "ocaml": "4.12.x"
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/w-upload-stream/esy.json b/example/w-upload-stream/esy.json
index 42f6d471..b56b6c0b 100644
--- a/example/w-upload-stream/esy.json
+++ b/example/w-upload-stream/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/z-docker-esy/esy.json b/example/z-docker-esy/esy.json
index 24f65b65..486351a1 100644
--- a/example/z-docker-esy/esy.json
+++ b/example/z-docker-esy/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/z-fly/esy.json b/example/z-fly/esy.json
index bb064c3f..f4022d8c 100644
--- a/example/z-fly/esy.json
+++ b/example/z-fly/esy.json
@@ -6,8 +6,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/z-heroku/esy.json b/example/z-heroku/esy.json
index 3c40fa05..7020dae3 100644
--- a/example/z-heroku/esy.json
+++ b/example/z-heroku/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.x"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"
diff --git a/example/z-systemd/esy.json b/example/z-systemd/esy.json
index 24f65b65..486351a1 100644
--- a/example/z-systemd/esy.json
+++ b/example/z-systemd/esy.json
@@ -2,8 +2,8 @@
   "dependencies": {
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
-    "@opam/dune": "^2.0",
-    "ocaml": "4.12.x"
+    "@opam/dune": "^3.0",
+    "ocaml": "^4.14.0"
   },
   "devDependencies": {
     "@opam/ocaml-lsp-server": "*"

From 599efd55fc5d0f0f3fbe776fd2ba6b17f6aeca8d Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 14 Apr 2023 10:57:29 +0300
Subject: [PATCH 255/312] Docs: fix cross-reference

---
 src/pure/stream.mli | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/pure/stream.mli b/src/pure/stream.mli
index fa4814ef..53e64d6f 100644
--- a/src/pure/stream.mli
+++ b/src/pure/stream.mli
@@ -79,8 +79,8 @@ val read : stream -> read
 (** Awaits the next stream event. See {!Stream.type-read}. *)
 
 val read_convenience : stream -> string option promise
-(** A wrapper around {!Stream.read} that converts [~data] with content [s] into
-    [Some s], and [~close] into [None], and uses them to resolve a promise.
+(** A wrapper around {!Stream.val-read} that converts [~data] with content [s]
+    into [Some s], and [~close] into [None], and uses them to resolve a promise.
     [~flush] is ignored. *)
 
 val read_until_close : stream -> string promise

From da604f14784f9d251a43cc56623332c9387e8c01 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 19 Apr 2023 09:12:47 +0300
Subject: [PATCH 256/312] make build: Dune workspace-friendly command

---
 Makefile | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index d50013f1..a58ea9dc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,12 @@
+PACKAGES := dream-pure,dream-httpaf,dream
+
 .PHONY : build
 build :
-	@dune build -p dream-pure,dream-httpaf,dream --no-print-directory @install
+	@dune build --only-packages $(PACKAGES) --no-print-directory @install
 
 .PHONY : watch
 watch :
-	@dune build -p dream-pure,dream-httpaf,dream --no-print-directory -w
+	@dune build --only-packages $(PACKAGES) --no-print-directory -w
 
 .PHONY : deps
 deps :

From edd0cd916719fc7b5291e99f581c5e69b0ac0005 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Wed, 19 Apr 2023 09:29:33 +0300
Subject: [PATCH 257/312] Fix make watch

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index a58ea9dc..3010c0c9 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ build :
 
 .PHONY : watch
 watch :
-	@dune build --only-packages $(PACKAGES) --no-print-directory -w
+	@dune build --only-packages $(PACKAGES) --no-print-directory @install -w
 
 .PHONY : deps
 deps :

From a39c938835f514f047bf9bd68dbf724c51797be5 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 20 Apr 2023 22:13:24 +0300
Subject: [PATCH 258/312] README: add Twitch to contact info

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index c49ae777..99d76c51 100644
--- a/README.md
+++ b/README.md
@@ -215,6 +215,7 @@ to discuss Dream are...
 - #dream on the [Reason Discord](https://discord.gg/2JTYRq2rYh).
 - #webdev on the [OCaml Discord](https://discord.gg/sx45hPkkWV)
 - The [OCaml Discuss forum](https://discuss.ocaml.org/).
+- The development stream on [Twitch](https://www.twitch.tv/antron_ML).
 
 Highlight `@antron` to poke @aantron specifically.
 

From 18cd2a08ac4661930d708e66753e62972fc14080 Mon Sep 17 00:00:00 2001
From: Tim McGilchrist <timmcgil@gmail.com>
Date: Fri, 21 Apr 2023 14:37:58 +1000
Subject: [PATCH 259/312] Mirage: add dependency on rresult (#260)

---
 dream-mirage.opam | 1 +
 src/mirage/dune   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/dream-mirage.opam b/dream-mirage.opam
index e64ee70f..0c0e90f2 100644
--- a/dream-mirage.opam
+++ b/dream-mirage.opam
@@ -61,6 +61,7 @@ depends: [
   "lwt_ppx" {>= "1.2.2"}
   "mimic"
   "mirage-time"
+  "rresult"
   "tcpip"
   "tls-mirage"
 ]
diff --git a/src/mirage/dune b/src/mirage/dune
index 4cc14e8f..242a8676 100644
--- a/src/mirage/dune
+++ b/src/mirage/dune
@@ -11,6 +11,7 @@
   dream-pure
   dream-httpaf.dream-h2
   lwt
+  rresult
   tcpip
   dream-mirage.dream-paf
   dream-mirage.dream-paf.alpn

From baa222bb8ec3ac25333d9967341fc4b8245fa77b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 21 Apr 2023 08:32:57 +0300
Subject: [PATCH 260/312] Upgrade vendored deps and adapt their Eio support

---
 src/vendor/dune   | 16 ----------------
 src/vendor/gluten |  2 +-
 src/vendor/h2     |  2 +-
 src/vendor/httpaf |  2 +-
 src/vendor/paf    |  2 +-
 5 files changed, 4 insertions(+), 20 deletions(-)

diff --git a/src/vendor/dune b/src/vendor/dune
index 07b8d615..770e66e6 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -216,19 +216,3 @@
    mirage-time
    dream-mirage.dream-paf.alpn
   )))
-
-(subdir paf/lib
- (library
-  (name dream_le)
-  (public_name dream-mirage.dream-paf.le)
-  (modules lE)
-  (libraries
-   tcpip
-   dream-httpaf.httpaf
-   dream-mirage.dream-paf
-   mirage-time
-   duration
-   tls-mirage
-   emile
-   letsencrypt
-  )))
diff --git a/src/vendor/gluten b/src/vendor/gluten
index b2aea887..388f3a28 160000
--- a/src/vendor/gluten
+++ b/src/vendor/gluten
@@ -1 +1 @@
-Subproject commit b2aea88753540b4b315d9a242ccb2cdafd18dd91
+Subproject commit 388f3a285dd876aa6f993b34d8fc9c05a19a7a71
diff --git a/src/vendor/h2 b/src/vendor/h2
index c372c736..68669ef3 160000
--- a/src/vendor/h2
+++ b/src/vendor/h2
@@ -1 +1 @@
-Subproject commit c372c736a278e3c5e4ea75adecb2cd400cedcdb1
+Subproject commit 68669ef33aa93ce37cd1ac39e82f918983c418d5
diff --git a/src/vendor/httpaf b/src/vendor/httpaf
index 340ba8c6..e2d08003 160000
--- a/src/vendor/httpaf
+++ b/src/vendor/httpaf
@@ -1 +1 @@
-Subproject commit 340ba8c662a2b1cf3305cd46ad4eee65a6de9b7d
+Subproject commit e2d080035a837d345182e0a66f46def18ac7bcdb
diff --git a/src/vendor/paf b/src/vendor/paf
index 14059ba8..26f47fae 160000
--- a/src/vendor/paf
+++ b/src/vendor/paf
@@ -1 +1 @@
-Subproject commit 14059ba85f886cf6babe9b8ce5a53a5b1f1bf3e8
+Subproject commit 26f47faef8fc15ffd17971b4e01de0108245679e

From a2961cd7fa150903db758fa3737213cddd7ddb3b Mon Sep 17 00:00:00 2001
From: Dennis Dang <dangggdennis@gmail.com>
Date: Sat, 22 Apr 2023 13:42:14 -0400
Subject: [PATCH 261/312] Upgrade ocamlformat to 0.25.1 (#263)

---
 .ocamlformat | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.ocamlformat b/.ocamlformat
index 07055c43..7bf428e0 100644
--- a/.ocamlformat
+++ b/.ocamlformat
@@ -1,4 +1,4 @@
-version = 0.24.1
+version = 0.25.1
 profile = conventional
 
 leading-nested-match-parens = false

From 1b0ac702b0e688efb2f895dd1eade500125dce0c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 23 Apr 2023 08:57:03 +0300
Subject: [PATCH 262/312] Update Dream.run docs w.r.t. ?debug

?debug was removed in 640a1b218b0c6932088077416455463ffd34f036. This
commit updates the docs to refer to its replacement.
---
 src/dream.mli | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 53d63986..b85120e9 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2218,15 +2218,14 @@ val run :
       requests, and {!Dream.run} to return. Requests that have already entered
       the Web application continue to be processed. The default value is a
       promise that never resolves. However, see also [~stop_on_input].
-    - [~debug:true] enables debug information in error templates. See
-      {!Dream.error_template}. The default is [false], to prevent accidental
-      deployment with debug output turned on. See example
-      {{:https://github.com/aantron/dream/tree/master/example/8-debug#files}
-      [8-debug]} \[{{:http://dream.as/8-debug} playground}\].
     - [~error_handler] handles all errors, both from the application, and
       low-level errors. See {!section-errors} and example
       {{:https://github.com/aantron/dream/tree/master/example/9-error#files}
       [9-error]} \[{{:http://dream.as/9-error} playground}\].
+      {!Dream.debug_error_handler} is a default error handler that can be passed
+      here to help debug Web apps. See example
+      {{:https://github.com/aantron/dream/tree/master/example/8-debug#files}
+      [8-debug]} \[{{:http://dream.as/8-debug} playground}\].
     - [~tls:true] enables TLS. You should also specify [~certificate_file] and
       [~key_file]. However, for development, Dream includes an insecure
       compiled-in

From 3df0d85c0a28ab73904565a694a45a920e94ab67 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 23 Apr 2023 09:02:26 +0300
Subject: [PATCH 263/312] Dream.run docs: don't show non-existent options

---
 docs/web/postprocess/index.ml | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/docs/web/postprocess/index.ml b/docs/web/postprocess/index.ml
index 991d4bb5..dee5ae5f 100644
--- a/docs/web/postprocess/index.ml
+++ b/docs/web/postprocess/index.ml
@@ -1467,9 +1467,6 @@ let run_replacement = {|
   ?port:int ->
   ?stop:unit <a href="#type-promise">promise</a> ->
   ?error_handler:<a href="#type-error_handler">error_handler</a> ->
-  ?secret:string ->
-  ?old_secrets:string list ->
-  ?prefix:string ->
   ?tls:bool ->
   ?certificate_file:string ->
   ?key_file:string ->
@@ -1492,9 +1489,6 @@ let serve_replacement = {|
   ?port:int ->
   ?stop:unit <a href="#type-promise">promise</a> ->
   ?error_handler:<a href="#type-error_handler">error_handler</a> ->
-  ?secret:string ->
-  ?old_secrets:string list ->
-  ?prefix:string ->
   ?tls:bool ->
   ?certificate_file:string ->
   ?key_string:string ->

From a57e8bc860714374790bc431d212037febcf10e4 Mon Sep 17 00:00:00 2001
From: Dennis Dang <dangggdennis@gmail.com>
Date: Sun, 23 Apr 2023 09:39:29 -0400
Subject: [PATCH 264/312] Use dune exec -w in fswatch example (#266)

---
 example/w-fswatch/README.md | 35 ++++-------------------------------
 example/w-fswatch/watch.sh  |  5 -----
 2 files changed, 4 insertions(+), 36 deletions(-)
 delete mode 100644 example/w-fswatch/watch.sh

diff --git a/example/w-fswatch/README.md b/example/w-fswatch/README.md
index 7b7d0dc9..c4e7f74d 100644
--- a/example/w-fswatch/README.md
+++ b/example/w-fswatch/README.md
@@ -1,37 +1,11 @@
-# `w-fswatch`
+# `w-watch`
 
 <br>
 
-This example sets up a simple development watcher using
-[fswatch](https://github.com/emcrisostomo/fswatch), which is available in system
-package managers such as APT and Homebrew:
+This example introduces dune's watch mode `exec -w` to recompile and run your server when you make changes.
 
-```sh
-#!/bin/bash
-
-npx esy start &
-fswatch -o hello.ml -l 2 | xargs -L1 bash -c \
-  "killall hello.exe || true; (npx esy start || true) &"
-```
-
-<pre><code><b>$ cd example/w-fswatch</b>
-<b>$ bash watch.sh</b></code></pre>
-
-<br>
-
-This watcher rebuilds `hello.exe` every time `hello.ml` changes. It's a bit
-verbose and clunky, but it gets the job done. We may be able to offer a better
-solution in the future.
-
-The reason we are not suggesting `dune watch -w` is because it does not kill the
-running server, which we are doing manually here, with the `killall` command.
-
-As your project grows, replace `hello.ml` with the list of your source
-directories. For example,
-
-```
-fswatch -o client server -l 2
-```
+<pre><code><b>$ cd example/w-watch-mode</b>
+<b>$ dune exec -w ./hello.exe</b></code></pre>
 
 <br>
 
@@ -41,7 +15,6 @@ fswatch -o client server -l 2
   browsers reload when the server is restarted.
 - [**`w-esy`**](../w-esy#files) discusses [esy](https://esy.sh/) packaging.
 
-
 <br>
 
 [Up to the example index](../#examples)
diff --git a/example/w-fswatch/watch.sh b/example/w-fswatch/watch.sh
deleted file mode 100644
index d1f1dd10..00000000
--- a/example/w-fswatch/watch.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-
-npx esy start &
-fswatch -o hello.ml -l 2 | xargs -L1 bash -c \
-  "killall hello.exe || true; (npx esy start || true) &"

From 23b740622b4084162ffcd067d5a59514bcb7d289 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 23 Apr 2023 09:29:14 +0300
Subject: [PATCH 265/312] Deprecate Dream.not_found

---
 src/dream.mli | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/dream.mli b/src/dream.mli
index b85120e9..2b9102a1 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1435,7 +1435,7 @@ val set_server_stream : request -> stream -> unit
 
 val router : route list -> handler
 (** Creates a router. If none of the routes match the request, the router
-    returns {!Dream.not_found}. Route components starting with [:] are
+    responds with [404 Not Found]. Route components starting with [:] are
     parameters, which can be retrieved with {!Dream.param}. See example
     {{:https://github.com/aantron/dream/tree/master/example/3-router#files}
     [3-router]} \[{{:http://dream.as/3-router} playground}\].
@@ -1490,8 +1490,14 @@ val patch   : string -> handler -> route
 val any     : string -> handler -> route
 (** Like {!Dream.get}, but does not check the method. *)
 
+(**/**)
 val not_found : handler
+[@@ocaml.deprecated
+"Use
+fun _ -> Dream.empty `Not_Found
+"]
 (** Always responds with [404 Not Found]. *)
+(**/**)
 
 (* :((( *)
 val param : request -> string -> string

From f784018e1d41fa8ba538dfa40251dc3af5da5bcf Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 23 Apr 2023 16:47:25 +0300
Subject: [PATCH 266/312] Rename w-fswatch to w-watch

Follow-on to #266.
---
 README.md                                   |  4 ++--
 example/1-hello/README.md                   |  2 +-
 example/README.md                           |  7 ++++---
 example/r-fullstack-melange/README.md       |  2 +-
 example/w-live-reload/README.md             | 10 +++++-----
 example/w-one-binary/README.md              |  2 +-
 example/{w-fswatch => w-watch}/README.md    |  0
 example/{w-fswatch => w-watch}/dune         |  0
 example/{w-fswatch => w-watch}/dune-project |  0
 example/{w-fswatch => w-watch}/esy.json     |  0
 example/{w-fswatch => w-watch}/hello.ml     |  0
 11 files changed, 14 insertions(+), 13 deletions(-)
 rename example/{w-fswatch => w-watch}/README.md (100%)
 rename example/{w-fswatch => w-watch}/dune (100%)
 rename example/{w-fswatch => w-watch}/dune-project (100%)
 rename example/{w-fswatch => w-watch}/esy.json (100%)
 rename example/{w-fswatch => w-watch}/hello.ml (100%)

diff --git a/README.md b/README.md
index 99d76c51..25405410 100644
--- a/README.md
+++ b/README.md
@@ -165,7 +165,7 @@ dune exec ./middleware.exe
   small-to-medium deployments.
 - [**Examples**][examples] &mdash; These cover various HTTP scenarios.
 - [**API reference**][api-main]
-- [Watching][fswatch] and [live reloading][reload].
+- [Watching][watch] and [live reloading][reload].
 
 [tutorial]: https://github.com/aantron/dream/tree/master/example#readme
 [examples]: https://github.com/aantron/dream/tree/master/example#examples
@@ -175,7 +175,7 @@ dune exec ./middleware.exe
 [deploying]: https://github.com/aantron/dream/tree/master/example#deploying
 [api-main]: https://aantron.github.io/dream/#types
 [fullstack]: https://github.com/aantron/dream/tree/master/example#full-stack
-[fswatch]: https://github.com/aantron/dream/tree/master/example/w-fswatch#files
+[watch]: https://github.com/aantron/dream/tree/master/example/w-watch#files
 [reload]: https://github.com/aantron/dream/tree/master/example/w-live-reload#files
 
 <br>
diff --git a/example/1-hello/README.md b/example/1-hello/README.md
index 9de605ca..5fff7b05 100644
--- a/example/1-hello/README.md
+++ b/example/1-hello/README.md
@@ -53,7 +53,7 @@ name of the `.ml` file, but with `.ml` changed to `.exe`.
 - [**`r-hello`**](../r-hello#files) is a Reason syntax version of this example.
 - [**`w-esy`**](../w-esy#files) gives more detail on the [esy](https://esy.sh/)
   packaging.
-- [**`w-fswatch`**](../w-fswatch#files) sets up a primitive development watcher.
+- [**`w-watch`**](../w-fswatch#files) sets up a development watcher.
 
 
 <br>
diff --git a/example/README.md b/example/README.md
index c947a0f2..f38fba43 100644
--- a/example/README.md
+++ b/example/README.md
@@ -120,11 +120,12 @@ if something is missing!
   [esy](https://esy.sh/), an npm-like package manager.
 - [**`w-one-binary`**](w-one-binary#files) &nbsp;&mdash;&nbsp; bakes static
   assets into a self-contained server binary.
-- [**`w-fswatch`**](w-fswatch#files) &nbsp;&mdash;&nbsp; sets up a development
-  watcher using fswatch.
+- [**`w-watch`**](w-watch#files) &nbsp;&mdash;&nbsp; sets up a development
+  watcher.
 - [**`w-live-reload`**](w-live-reload#files) &nbsp;&mdash;&nbsp; a simple
   live-reloading setup.
-- [**`w-nginx`**](w-nginx#files) &nbsp;&mdash;&nbsp; uses nginx as a reverse proxy.
+- [**`w-nginx`**](w-nginx#files) &nbsp;&mdash;&nbsp; uses nginx as a
+  reverse proxy.
 - [**`w-tyxml`**](w-tyxml#files) &nbsp;&mdash;&nbsp; uses TyXML for type-checked
   HTML templating.
 - [**`w-long-polling`**](w-long-polling#files) &nbsp;&mdash;&nbsp; old form of
diff --git a/example/r-fullstack-melange/README.md b/example/r-fullstack-melange/README.md
index 851a2d3c..ec2bf251 100644
--- a/example/r-fullstack-melange/README.md
+++ b/example/r-fullstack-melange/README.md
@@ -84,7 +84,7 @@ example in OCaml syntax.
 
 - [**`w-esy`**](../w-esy#files) details the server's [esy](https://esy.sh/)
   packaging.
-- [**`w-fswatch`**](../w-fswatch#files) sets up a primitive development watcher.
+- [**`w-watch`**](../w-fswatch#files) sets up a development watcher.
 - [**`w-one-binary`**](../w-one-binary#files) bundles assets into a
   self-contained binary.
 - [**`7-template`**](../7-template#files) discusses the templater, including
diff --git a/example/w-live-reload/README.md b/example/w-live-reload/README.md
index 8fd4bd03..0e66c545 100644
--- a/example/w-live-reload/README.md
+++ b/example/w-live-reload/README.md
@@ -118,11 +118,11 @@ Good morning, world! Random tag: jRak
 
 <br>
 
-This example plays very well with [**`w-fswatch`**](../w-fswatch#files), which
-shows how to rebuild and restart a development server every time sources are
-modified in the file system. Combining the two examples, it is possible to
-propagate reloading all the way to the client, whenever any of the server's
-source code changes.
+This example plays very well with [**`w-watch`**](../w-watch#files), which shows
+how to rebuild and restart a development server every time sources are modified
+in the file system. Combining the two examples, it is possible to propagate
+reloading all the way to the client, whenever any of the server's source code
+changes.
 
 <br>
 
diff --git a/example/w-one-binary/README.md b/example/w-one-binary/README.md
index b50b8c36..47c78698 100644
--- a/example/w-one-binary/README.md
+++ b/example/w-one-binary/README.md
@@ -107,7 +107,7 @@ To add more files, just add them to the `assets/` directory and re-run
 **See also:**
 
 - [**`w-esy`**](../w-esy#files) for details on packaging with esy.
-- [**`w-fswatch`**](../w-fswatch#files) for a primitive watcher, which can be
+- [**`w-watch`**](../w-watch#files) for a primitive watcher, which can be
   extended to watch `assets/`.
 - [**`f-static`**](../f-static#files) shows the basics of
   [`Dream.static`](https://aantron.github.io/dream/#val-static).
diff --git a/example/w-fswatch/README.md b/example/w-watch/README.md
similarity index 100%
rename from example/w-fswatch/README.md
rename to example/w-watch/README.md
diff --git a/example/w-fswatch/dune b/example/w-watch/dune
similarity index 100%
rename from example/w-fswatch/dune
rename to example/w-watch/dune
diff --git a/example/w-fswatch/dune-project b/example/w-watch/dune-project
similarity index 100%
rename from example/w-fswatch/dune-project
rename to example/w-watch/dune-project
diff --git a/example/w-fswatch/esy.json b/example/w-watch/esy.json
similarity index 100%
rename from example/w-fswatch/esy.json
rename to example/w-watch/esy.json
diff --git a/example/w-fswatch/hello.ml b/example/w-watch/hello.ml
similarity index 100%
rename from example/w-fswatch/hello.ml
rename to example/w-watch/hello.ml

From dbf01b83df9d38833d7d5d43240946bfbb8e8664 Mon Sep 17 00:00:00 2001
From: Dennis Dang <dangggdennis@gmail.com>
Date: Sun, 23 Apr 2023 10:20:11 -0400
Subject: [PATCH 267/312] Warn if response header has empty name (#262)

Co-authored-by: Anton Bachin <antonbachin@yahoo.com>
---
 src/http/http.ml                    | 12 ++++++++++++
 test/expect/pure/message/message.ml |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index 10d56902..2deb1dbf 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -382,8 +382,20 @@ let ocaml_tls = {
 
 
 
+let check_headers_middleware next_handler request =
+  let%lwt response = next_handler request in
+  let invalid_headers_exist =
+    Message.all_headers response
+    |> List.exists (fun (name, _) -> String.trim name = "")
+  in
+  if invalid_headers_exist then
+    log.warning (fun log ->
+      log ~request "A response header is empty or contains only whitespace");
+  Lwt.return response
+
 let built_in_middleware error_handler =
   Message.pipeline [
+    check_headers_middleware;
     Catch.catch (Error_handler.app error_handler);
   ]
 
diff --git a/test/expect/pure/message/message.ml b/test/expect/pure/message/message.ml
index bbeae946..90e04e85 100644
--- a/test/expect/pure/message/message.ml
+++ b/test/expect/pure/message/message.ml
@@ -5,7 +5,7 @@
 
 
 
-let%expect_test _ =
+let%expect_test "middleware runs sequentially onion-style" =
   let handler _ =
     print_endline "handler";
     Dream.empty `OK

From d135ba60460852bd2e87963d970bbd41a724bf70 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 23 Apr 2023 21:23:43 +0300
Subject: [PATCH 268/312] Change logger's tag to dream.logger

dream.log is too generic -- it appears to refer to the whole Dream log,
when it is meant to refer to Dream's logger.
---
 src/server/log.ml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/server/log.ml b/src/server/log.ml
index f2a664f2..b581fc5b 100644
--- a/src/server/log.ml
+++ b/src/server/log.ml
@@ -378,7 +378,7 @@ let iter_backtrace f backtrace =
 (* Use the above function to create a log source for Log's own middleware, the
    same way any other middleware would. *)
 let log =
-  sub_log "dream.log"
+  sub_log "dream.logger"
 
 
 

From 7117d9037986933a5818279b0ebfa330a8841039 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 23 Apr 2023 21:29:29 +0300
Subject: [PATCH 269/312] example/w-watch: requires Dune 3.7.0

---
 example/w-watch/README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/example/w-watch/README.md b/example/w-watch/README.md
index c4e7f74d..bd6c2597 100644
--- a/example/w-watch/README.md
+++ b/example/w-watch/README.md
@@ -7,6 +7,8 @@ This example introduces dune's watch mode `exec -w` to recompile and run your se
 <pre><code><b>$ cd example/w-watch-mode</b>
 <b>$ dune exec -w ./hello.exe</b></code></pre>
 
+Note that this requires Dune 3.7.0 or higher.
+
 <br>
 
 **See also:**

From c27a83ecd9d9dd622fd79a9463a1b5fb64eab6fd Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 23 Apr 2023 22:22:43 +0300
Subject: [PATCH 270/312] Adapt example/9-error to not_found deprecation

Done in 23b740622b4084162ffcd067d5a59514bcb7d289.
---
 example/9-error/error.eml.ml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/example/9-error/error.eml.ml b/example/9-error/error.eml.ml
index 515091cf..fdd88f81 100644
--- a/example/9-error/error.eml.ml
+++ b/example/9-error/error.eml.ml
@@ -17,4 +17,4 @@ let my_error_template _error debug_info suggested_response =
 let () =
   Dream.run ~error_handler:(Dream.error_template my_error_template)
   @@ Dream.logger
-  @@ Dream.not_found
+  @@ fun _ -> Dream.empty `Not_Found

From 561e99d83769e4a42f045a3494c1111ff8bf4b33 Mon Sep 17 00:00:00 2001
From: Rawley <75388349+rawleyfowler@users.noreply.github.com>
Date: Mon, 24 Apr 2023 00:30:20 -0600
Subject: [PATCH 271/312] Router: add doc about trailing slashes (#265)

---
 src/dream.mli | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/dream.mli b/src/dream.mli
index 2b9102a1..11414dce 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1468,7 +1468,10 @@ val router : route list -> handler
     include its own router, into a subsite. However, it is better to compose
     sites with routes and {!Dream.scope} rather than opaque handlers and [**],
     because, in the future, it may be possible to query routes for site
-    structure metadata. *)
+    structure metadata.
+    
+    Note, routes that end with [/], and routes that don't end with [/] will be treated
+    as separate entities. *)
 
 val get     : string -> handler -> route
 (** Forwards [`GET] requests for the given path to the handler.

From 76faf6f3b2258a72da68ae5c1fbd1aa6bf68b1e7 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 24 Apr 2023 10:36:27 +0300
Subject: [PATCH 272/312] Docs: link to note about trailing /

Follow-on to #265.
---
 src/dream.mli | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 11414dce..9d55391c 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1469,9 +1469,10 @@ val router : route list -> handler
     sites with routes and {!Dream.scope} rather than opaque handlers and [**],
     because, in the future, it may be possible to query routes for site
     structure metadata.
-    
-    Note, routes that end with [/], and routes that don't end with [/] will be treated
-    as separate entities. *)
+
+    Note: routes that end with [/] and routes that don't end with [/] are
+    {{:https://github.com/aantron/dream/issues/244#issuecomment-1511624682}
+    different}. *)
 
 val get     : string -> handler -> route
 (** Forwards [`GET] requests for the given path to the handler.

From 313fe46c3f4e1e600b63c82f5d1b7fa64fb4fba2 Mon Sep 17 00:00:00 2001
From: Dennis Dang <dangggdennis@gmail.com>
Date: Tue, 25 Apr 2023 00:47:00 -0400
Subject: [PATCH 273/312] Update w-watch's README command to match directory
 (#267)

---
 example/w-watch/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/example/w-watch/README.md b/example/w-watch/README.md
index bd6c2597..0695ede9 100644
--- a/example/w-watch/README.md
+++ b/example/w-watch/README.md
@@ -4,7 +4,7 @@
 
 This example introduces dune's watch mode `exec -w` to recompile and run your server when you make changes.
 
-<pre><code><b>$ cd example/w-watch-mode</b>
+<pre><code><b>$ cd example/w-watch</b>
 <b>$ dune exec -w ./hello.exe</b></code></pre>
 
 Note that this requires Dune 3.7.0 or higher.

From 860e4563bd0e48c0e81b730acdc582c212449ed1 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 27 Apr 2023 10:37:21 +0300
Subject: [PATCH 274/312] Fix link to example/w-watch in 1-hello

---
 example/1-hello/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/example/1-hello/README.md b/example/1-hello/README.md
index 5fff7b05..6d09ca5e 100644
--- a/example/1-hello/README.md
+++ b/example/1-hello/README.md
@@ -53,7 +53,7 @@ name of the `.ml` file, but with `.ml` changed to `.exe`.
 - [**`r-hello`**](../r-hello#files) is a Reason syntax version of this example.
 - [**`w-esy`**](../w-esy#files) gives more detail on the [esy](https://esy.sh/)
   packaging.
-- [**`w-watch`**](../w-fswatch#files) sets up a development watcher.
+- [**`w-watch`**](../w-watch#files) sets up a development watcher.
 
 
 <br>

From 765da904149fbb74a67e7cbb6d128894b54fd303 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 28 Apr 2023 10:24:40 +0300
Subject: [PATCH 275/312] .gitignore nano .swp files

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 575d62a5..08738be9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,4 @@ scratch/
 
 # Editors
 .vscode/
+*.swp

From 881d26da23c5057d785921385719e7d609786c63 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 28 Apr 2023 15:10:33 +0300
Subject: [PATCH 276/312] Refresh CONTRIBUTING.md

---
 docs/CONTRIBUTING.md | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
index 7f344da2..c69268a9 100644
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@@ -58,7 +58,7 @@ opam install --deps-only ./dream.opam --with-test
 If you don't have an opam switch ready, first create one with
 
 ```
-opam switch create . 4.12.0 --no-install
+opam switch create . 4.14.1 --no-install
 ```
 
 You can now add some code that will exercise your change, so you can test it as
@@ -71,7 +71,10 @@ you work. There are two main places for this:
    To run tests from a single directory, for example `test/expect/pure`, run
    `make test TEST=test/expect/pure`.
 
-2. The examples in `example/`. I often test changes by modifying an example that
+2. The tests can also be run in watch mode using `make test-watch`. This is not
+   compatible with coverage reports at the moment.
+
+3. The examples in `example/`. I often test changes by modifying an example that
    is almost on topic for the code I'm changing, and then not committing the
    example. In some cases, though, it's easiest to fork or write a new example
    for some new code, and commit it. New examples greatly appreciated! To build
@@ -104,10 +107,10 @@ If you want to work again later, be sure to use `--recurse-submodules` during
 git pull --recurse-submodules
 ```
 
-Please don't force-push into a PR &mdash; it makes incremental review very
-difficult, and we will squash-merge most PRs anyway!
+**Note:** Please don't force-push into a PR &mdash; it makes incremental review
+very difficult, and we will squash-merge most PRs anyway!
 
-Also please don't resolve conversations in PRs. Reviewers use resolving
+**Note:** Please don't resolve conversations in PRs. Reviewers use resolving
 conversations to keep track of what has been addressed.
 
 <br>
@@ -146,8 +149,8 @@ To build the docs, go to
 make deps
 ```
 
-This will install npm packages and opam packages (some of which are pinned to
-git commits).
+This will install npm and opam packages. In particular, the site currently
+requires odoc 2.0.2, Soupault, and a specific version of Highlight.js.
 
 After that, back in the project root,
 
@@ -162,3 +165,11 @@ make docs
 ```
 
 to build the docs locally. They are output to `docs/web/build/index.html`.
+
+You can also use
+
+```
+make docs-watch
+```
+
+to rebuild the docs automatically as you write them.

From 0826c267b393459c1ab3fd9dfedc9f79cff9d9ca Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 28 Apr 2023 15:27:18 +0300
Subject: [PATCH 277/312] Clarify docs expected markup mismatch message

---
 docs/web/postprocess/common.ml | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/docs/web/postprocess/common.ml b/docs/web/postprocess/common.ml
index ae90059f..aa2a4531 100644
--- a/docs/web/postprocess/common.ml
+++ b/docs/web/postprocess/common.ml
@@ -13,8 +13,35 @@ let if_expected expected test f =
     f ()
   else begin
     Soup.write_file "actual" actual;
-    Printf.ksprintf failwith "Mismatch; wrote %s"
-      (Filename.concat (Sys.getcwd ()) "actual")
+    prerr_newline ();
+    prerr_newline ();
+    prerr_endline "Mismatch with expected initial HTML content.";
+    prerr_newline ();
+    prerr_endline
+      "The Dream docs build rewrites HTML emitted by odoc to make it neater.";
+    prerr_endline
+      "Each rewritten tag has an expected initial content for sanity checking.";
+
+    prerr_endline "The actual found content has been written to";
+    prerr_newline ();
+    prerr_endline ("  " ^ (Filename.concat (Sys.getcwd ()) "actual"));
+    prerr_newline ();
+
+    begin match String.split_on_char '\n' actual with
+    | [] -> ()
+    | first_line::_ ->
+      prerr_endline "Hint:";
+      prerr_newline ();
+      prerr_endline ("  " ^ first_line);
+      prerr_newline ()
+    end;
+
+    prerr_endline "Hint: make sure odoc 2.0.2 is installed.";
+    prerr_endline
+      "Other versions of odoc generate markup that doesn't match the expected.";
+    prerr_newline ();
+
+    Printf.ksprintf failwith "Mismatch"
   end
 
 let add_backing_lines soup =

From 006196fa0c957ea4f4aa3e949803b09cc1b3010b Mon Sep 17 00:00:00 2001
From: Dennis Dang <dangggdennis@gmail.com>
Date: Wed, 3 May 2023 08:21:46 -0400
Subject: [PATCH 278/312] Upgrade GraphiQL to 2.4.1 (#271)

---
 src/graphiql/index.bundle.html |  542 ++--
 src/graphiql/index.html        |   10 +-
 src/graphiql/package-lock.json | 5401 +++++++++++++++++++++++++++++---
 src/graphiql/package.json      |    8 +-
 4 files changed, 5225 insertions(+), 736 deletions(-)

diff --git a/src/graphiql/index.bundle.html b/src/graphiql/index.bundle.html
index d2070602..b14de863 100644
--- a/src/graphiql/index.bundle.html
+++ b/src/graphiql/index.bundle.html
@@ -1,4 +1,5 @@
-<!-- * Copyright (c) 2021 GraphQL Contributors * All rights reserved. * * This source code is licensed under the license found in the * LICENSE file in the root directory of this source tree. --> <!DOCTYPE html> <html> <head> <style> body{ height:100%;margin:0;width:100%;overflow:hidden;}#graphiql{ height:100vh;}</style> <script>/** @license React v17.0.2
+<!-- * Copyright (c) 2021 GraphQL Contributors * All rights reserved. * * This source code is licensed under the license found in the * LICENSE file in the root directory of this source tree. --> <!DOCTYPE html> <html> <head> <style> body{ height:100%;margin:0;width:100%;overflow:hidden;}#graphiql{ height:100vh;}</style> <script>/**
+ * @license React
  * react.production.min.js
  *
  * Copyright (c) Facebook, Inc. and its affiliates.
@@ -6,30 +7,30 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  */
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t=this.baseTokens[this.baseTokenPos+1];return{type:t&&t.replace(/( |^)overlay .*/,""),size:this.baseTokens[this.baseTokenPos]-e}},ut.prototype.nextLine=function(){this.line++,this.maxLookAhead>0&&this.maxLookAhead--},ut.fromSaved=function(e,t,n){return t instanceof ct?new ut(e,qe(e.mode,t.state),n,t.lookAhead):new ut(e,qe(e.mode,t),n)},ut.prototype.save=function(e){var t=!1!==e?qe(this.doc.mode,this.state):this.state;return this.maxLookAhead>0?new ct(t,this.maxLookAhead):t};var gt=function(e,t,n){this.start=e.start,this.end=e.pos,this.string=e.current(),this.type=t||null,this.state=n};function yt(e,t,n,r){var i,o,a=e.doc,s=a.mode,l=Qe(a,(t=st(a,t)).line),c=pt(e,t.line,n),u=new ze(l.text,e.options.tabSize,c);for(r&&(o=[]);(r||u.pos<t.ch)&&!u.eol();)u.start=u.pos,i=vt(s,u,c.state),r&&o.push(new gt(u,i,qe(a.mode,c.state)));return r?o:new gt(u,i,c.state)}function bt(e,t){if(e)for(;;){var n=e.match(/(?:^|\s+)line-(background-)?(\S+)/);if(!n)break;e=e.slice(0,n.index)+e.slice(n.index+n[0].length);var r=n[1]?"bgClass":"textClass";null==t[r]?t[r]=n[2]:new RegExp("(?:^|\\s)"+n[2]+"(?:$|\\s)").test(t[r])||(t[r]+=" "+n[2])}return e}function Tt(e,t,n,r,i,o,a){var s=n.flattenSpans;null==s&&(s=e.options.flattenSpans);var l,c=0,u=null,f=new ze(t,e.options.tabSize,r),d=e.options.addModeClass&&[null];for(""==t&&bt(mt(n,r.state),o);!f.eol();){if(f.pos>e.options.maxHighlightLength?(s=!1,a&&ht(e,t,r,f.pos),f.pos=t.length,l=null):l=bt(vt(n,f,r.state,d),o),d){var p=d[0].name;p&&(l="m-"+(l?p+" "+l:p))}if(!s||u!=l){for(;c<f.start;)i(c=Math.min(f.start,c+5e3),u);u=l}f.start=f.pos}for(;c<f.pos;){var h=Math.min(f.pos,c+5e3);i(h,u),c=h}}var Et=!1,Ot=!1;function wt(e,t,n){this.marker=e,this.from=t,this.to=n}function xt(e,t){if(e)for(var n=0;n<e.length;++n){var r=e[n];if(r.marker==t)return r}}function _t(e,t){for(var n,r=0;r<e.length;++r)e[r]!=t&&(n||(n=[])).push(e[r]);return n}function kt(e,t){if(t.full)return null;var n=Xe(e,t.from.line)&&Qe(e,t.from.line).markedSpans,r=Xe(e,t.to.line)&&Qe(e,t.to.line).markedSpans;if(!n&&!r)return null;var i=t.from.ch,o=t.to.ch,a=0==tt(t.from,t.to),s=function(e,t,n){var r;if(e)for(var i=0;i<e.length;++i){var o=e[i],a=o.marker;if(null==o.from||(a.inclusiveLeft?o.from<=t:o.from<t)||o.from==t&&"bookmark"==a.type&&(!n||!o.marker.insertLeft)){var s=null==o.to||(a.inclusiveRight?o.to>=t:o.to>t);(r||(r=[])).push(new wt(a,o.from,s?null:o.to))}}return r}(n,i,a),l=function(e,t,n){var r;if(e)for(var i=0;i<e.length;++i){var o=e[i],a=o.marker;if(null==o.to||(a.inclusiveRight?o.to>=t:o.to>t)||o.from==t&&"bookmark"==a.type&&(!n||o.marker.insertLeft)){var s=null==o.from||(a.inclusiveLeft?o.from<=t:o.from<t);(r||(r=[])).push(new wt(a,s?null:o.from-t,null==o.to?null:o.to-t))}}return r}(r,o,a),c=1==t.text.length,u=W(t.text).length+(c?i:0);if(s)for(var f=0;f<s.length;++f){var d=s[f];if(null==d.to){var 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r=e.find(),i=t.find(),o=tt(r.from,i.from)||Dt(e)-Dt(t);if(o)return-o;var a=tt(r.to,i.to)||It(e)-It(t);return a||t.id-e.id}function Lt(e,t){var n,r=Ot&&e.markedSpans;if(r)for(var i=void 0,o=0;o<r.length;++o)(i=r[o]).marker.collapsed&&null==(t?i.from:i.to)&&(!n||At(n,i.marker)<0)&&(n=i.marker);return n}function jt(e){return Lt(e,!0)}function Ft(e){return Lt(e,!1)}function Mt(e,t){var n,r=Ot&&e.markedSpans;if(r)for(var i=0;i<r.length;++i){var o=r[i];o.marker.collapsed&&(null==o.from||o.from<t)&&(null==o.to||o.to>t)&&(!n||At(n,o.marker)<0)&&(n=o.marker)}return n}function Rt(e,t,n,r,i){var o=Qe(e,t),a=Ot&&o.markedSpans;if(a)for(var s=0;s<a.length;++s){var l=a[s];if(l.marker.collapsed){var c=l.marker.find(0),u=tt(c.from,n)||Dt(l.marker)-Dt(i),f=tt(c.to,r)||It(l.marker)-It(i);if(!(u>=0&&f<=0||u<=0&&f>=0)&&(u<=0&&(l.marker.inclusiveRight&&i.inclusiveLeft?tt(c.to,n)>=0:tt(c.to,n)>0)||u>=0&&(l.marker.inclusiveRight&&i.inclusiveLeft?tt(c.from,r)<=0:tt(c.from,r)<0)))return!0}}}function Pt(e){for(var t;t=jt(e);)e=t.find(-1,!0).line;return e}function Vt(e,t){var n=Qe(e,t),r=Pt(n);return n==r?t:Je(r)}function Ut(e,t){if(t>e.lastLine())return t;var n,r=Qe(e,t);if(!Bt(e,r))return t;for(;n=Ft(r);)r=n.find(1,!0).line;return Je(r)+1}function Bt(e,t){var n=Ot&&t.markedSpans;if(n)for(var r=void 0,i=0;i<n.length;++i)if((r=n[i]).marker.collapsed){if(null==r.from)return!0;if(!r.marker.widgetNode&&0==r.from&&r.marker.inclusiveLeft&&qt(e,t,r))return!0}}function qt(e,t,n){if(null==n.to){var r=n.marker.find(1,!0);return qt(e,r.line,xt(r.line.markedSpans,n.marker))}if(n.marker.inclusiveRight&&n.to==t.text.length)return!0;for(var i=void 0,o=0;o<t.markedSpans.length;++o)if((i=t.markedSpans[o]).marker.collapsed&&!i.marker.widgetNode&&i.from==n.to&&(null==i.to||i.to!=n.from)&&(i.marker.inclusiveLeft||n.marker.inclusiveRight)&&qt(e,t,i))return!0}function Ht(e){for(var t=0,n=(e=Pt(e)).parent,r=0;r<n.lines.length;++r){var i=n.lines[r];if(i==e)break;t+=i.height}for(var o=n.parent;o;o=(n=o).parent)for(var a=0;a<o.children.length;++a){var s=o.children[a];if(s==n)break;t+=s.height}return t}function Gt(e){if(0==e.height)return 0;for(var t,n=e.text.length,r=e;t=jt(r);){var i=t.find(0,!0);r=i.from.line,n+=i.from.ch-i.to.ch}for(r=e;t=Ft(r);){var o=t.find(0,!0);n-=r.text.length-o.from.ch,n+=(r=o.to.line).text.length-o.to.ch}return n}function zt(e){var t=e.display,n=e.doc;t.maxLine=Qe(n,n.first),t.maxLineLength=Gt(t.maxLine),t.maxLineChanged=!0,n.iter((function(e){var n=Gt(e);n>t.maxLineLength&&(t.maxLineLength=n,t.maxLine=e)}))}var Qt=function(e,t,n){this.text=e,Nt(this,t),this.height=n?n(this):1};function Kt(e){e.parent=null,St(e)}Qt.prototype.lineNo=function(){return Je(this)},ye(Qt);var Wt={},Yt={};function Jt(e,t){if(!e||/^\s*$/.test(e))return null;var n=t.addModeClass?Yt:Wt;return n[e]||(n[e]=e.replace(/\S+/g,"cm-$&"))}function $t(e,t){var n=D("span",null,null,l?"padding-right: 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he(e,"renderLine",e,t.line,r.pre),r.pre.className&&(r.textClass=j(r.pre.className,r.textClass||"")),r}function Xt(e){var t=N("span","•","cm-invalidchar");return t.title="\\u"+e.charCodeAt(0).toString(16),t.setAttribute("aria-label",t.title),t}function Zt(e,t,n,r,i,o,l){if(t){var c,u=e.splitSpaces?function(e,t){if(e.length>1&&!/  /.test(e))return e;for(var n=t,r="",i=0;i<e.length;i++){var o=e.charAt(i);" "!=o||!n||i!=e.length-1&&32!=e.charCodeAt(i+1)||(o=" "),r+=o,n=" "==o}return r}(t,e.trailingSpace):t,f=e.cm.state.specialChars,d=!1;if(f.test(t)){c=document.createDocumentFragment();for(var p=0;;){f.lastIndex=p;var h=f.exec(t),m=h?h.index-p:t.length-p;if(m){var v=document.createTextNode(u.slice(p,p+m));a&&s<9?c.appendChild(N("span",[v])):c.appendChild(v),e.map.push(e.pos,e.pos+m,v),e.col+=m,e.pos+=m}if(!h)break;p+=m+1;var g=void 0;if("\t"==h[0]){var y=e.cm.options.tabSize,b=y-e.col%y;(g=c.appendChild(N("span",K(b),"cm-tab"))).setAttribute("role","presentation"),g.setAttribute("cm-text","\t"),e.col+=b}else"\r"==h[0]||"\n"==h[0]?((g=c.appendChild(N("span","\r"==h[0]?"␍":"␤","cm-invalidchar"))).setAttribute("cm-text",h[0]),e.col+=1):((g=e.cm.options.specialCharPlaceholder(h[0])).setAttribute("cm-text",h[0]),a&&s<9?c.appendChild(N("span",[g])):c.appendChild(g),e.col+=1);e.map.push(e.pos,e.pos+1,g),e.pos++}}else e.col+=t.length,c=document.createTextNode(u),e.map.push(e.pos,e.pos+t.length,c),a&&s<9&&(d=!0),e.pos+=t.length;if(e.trailingSpace=32==u.charCodeAt(t.length-1),n||r||i||d||o){var T=n||"";r&&(T+=r),i&&(T+=i);var E=N("span",[c],T,o);if(l)for(var O in l)l.hasOwnProperty(O)&&"style"!=O&&"class"!=O&&E.setAttribute(O,l[O]);return e.content.appendChild(E)}e.content.appendChild(c)}}function en(e,t){return function(n,r,i,o,a,s,l){i=i?i+" cm-force-border":"cm-force-border";for(var c=n.pos,u=c+r.length;;){for(var f=void 0,d=0;d<t.length&&!((f=t[d]).to>c&&f.from<=c);d++);if(f.to>=u)return e(n,r,i,o,a,s,l);e(n,r.slice(0,f.to-c),i,o,null,s,l),o=null,r=r.slice(f.to-c),c=f.to}}}function tn(e,t,n,r){var i=!r&&n.widgetNode;i&&e.map.push(e.pos,e.pos+t,i),!r&&e.cm.display.input.needsContentAttribute&&(i||(i=e.content.appendChild(document.createElement("span"))),i.setAttribute("cm-marker",n.id)),i&&(e.cm.display.input.setUneditable(i),e.content.appendChild(i)),e.pos+=t,e.trailingSpace=!1}function nn(e,t,n){var r=e.markedSpans,i=e.text,o=0;if(r)for(var a,s,l,c,u,f,d,p=i.length,h=0,m=1,v="",g=0;;){if(g==h){l=c=u=s="",d=null,f=null,g=1/0;for(var y=[],b=void 0,T=0;T<r.length;++T){var E=r[T],O=E.marker;if("bookmark"==O.type&&E.from==h&&O.widgetNode)y.push(O);else if(E.from<=h&&(null==E.to||E.to>h||O.collapsed&&E.to==h&&E.from==h)){if(null!=E.to&&E.to!=h&&g>E.to&&(g=E.to,c=""),O.className&&(l+=" "+O.className),O.css&&(s=(s?s+";":"")+O.css),O.startStyle&&E.from==h&&(u+=" 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n&&n.line==t.line?(e.display.externalMeasured=null,t.measure=n.measure,n.built):$t(e,t)}function pn(e,t){var n=t.text.className,r=dn(e,t);t.text==t.node&&(t.node=r.pre),t.text.parentNode.replaceChild(r.pre,t.text),t.text=r.pre,r.bgClass!=t.bgClass||r.textClass!=t.textClass?(t.bgClass=r.bgClass,t.textClass=r.textClass,hn(e,t)):n&&(t.text.className=n)}function hn(e,t){!function(e,t){var n=t.bgClass?t.bgClass+" "+(t.line.bgClass||""):t.line.bgClass;if(n&&(n+=" CodeMirror-linebackground"),t.background)n?t.background.className=n:(t.background.parentNode.removeChild(t.background),t.background=null);else if(n){var r=fn(t);t.background=r.insertBefore(N("div",null,n),r.firstChild),e.display.input.setUneditable(t.background)}}(e,t),t.line.wrapClass?fn(t).className=t.line.wrapClass:t.node!=t.text&&(t.node.className="");var n=t.textClass?t.textClass+" "+(t.line.textClass||""):t.line.textClass;t.text.className=n||""}function mn(e,t,n,r){if(t.gutter&&(t.node.removeChild(t.gutter),t.gutter=null),t.gutterBackground&&(t.node.removeChild(t.gutterBackground),t.gutterBackground=null),t.line.gutterClass){var i=fn(t);t.gutterBackground=N("div",null,"CodeMirror-gutter-background "+t.line.gutterClass,"left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px; width: "+r.gutterTotalWidth+"px"),e.display.input.setUneditable(t.gutterBackground),i.insertBefore(t.gutterBackground,t.text)}var o=t.line.gutterMarkers;if(e.options.lineNumbers||o){var a=fn(t),s=t.gutter=N("div",null,"CodeMirror-gutter-wrapper","left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px");if(e.display.input.setUneditable(s),a.insertBefore(s,t.text),t.line.gutterClass&&(s.className+=" "+t.line.gutterClass),!e.options.lineNumbers||o&&o["CodeMirror-linenumbers"]||(t.lineNumber=s.appendChild(N("div",Ze(e.options,n),"CodeMirror-linenumber CodeMirror-gutter-elt","left: "+r.gutterLeft["CodeMirror-linenumbers"]+"px; width: 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n=we(t);n!=e.wrapper;n=n.parentNode)if(!n||1==n.nodeType&&"true"==n.getAttribute("cm-ignore-events")||n.parentNode==e.sizer&&n!=e.mover)return!0}function wn(e){return e.lineSpace.offsetTop}function xn(e){return e.mover.offsetHeight-e.lineSpace.offsetHeight}function _n(e){if(e.cachedPaddingH)return e.cachedPaddingH;var t=S(e.measure,N("pre","x","CodeMirror-line-like")),n=window.getComputedStyle?window.getComputedStyle(t):t.currentStyle,r={left:parseInt(n.paddingLeft),right:parseInt(n.paddingRight)};return isNaN(r.left)||isNaN(r.right)||(e.cachedPaddingH=r),r}function kn(e){return 50-e.display.nativeBarWidth}function Cn(e){return e.display.scroller.clientWidth-kn(e)-e.display.barWidth}function Sn(e){return e.display.scroller.clientHeight-kn(e)-e.display.barHeight}function Nn(e,t,n){if(e.line==t)return{map:e.measure.map,cache:e.measure.cache};for(var r=0;r<e.rest.length;r++)if(e.rest[r]==t)return{map:e.measure.maps[r],cache:e.measure.caches[r]};for(var i=0;i<e.rest.length;i++)if(Je(e.rest[i])>n)return{map:e.measure.maps[i],cache:e.measure.caches[i],before:!0}}function Dn(e,t,n,r){return Ln(e,An(e,t),n,r)}function In(e,t){if(t>=e.display.viewFrom&&t<e.display.viewTo)return e.display.view[ur(e,t)];var n=e.display.externalMeasured;return n&&t>=n.lineN&&t<n.lineN+n.size?n:void 0}function An(e,t){var n=Je(t),r=In(e,n);r&&!r.text?r=null:r&&r.changes&&(un(e,r,n,or(e)),e.curOp.forceUpdate=!0),r||(r=function(e,t){var n=Je(t=Pt(t)),r=e.display.externalMeasured=new rn(e.doc,t,n);r.lineN=n;var i=r.built=$t(e,r);return r.text=i.pre,S(e.display.lineMeasure,i.pre),r}(e,t));var i=Nn(r,t,n);return{line:t,view:r,rect:null,map:i.map,cache:i.cache,before:i.before,hasHeights:!1}}function Ln(e,t,n,r,i){t.before&&(n=-1);var o,l=n+(r||"");return t.cache.hasOwnProperty(l)?o=t.cache[l]:(t.rect||(t.rect=t.view.text.getBoundingClientRect()),t.hasHeights||(function(e,t,n){var r=e.options.lineWrapping,i=r&&Cn(e);if(!t.measure.heights||r&&t.measure.width!=i){var o=t.measure.heights=[];if(r){t.measure.width=i;for(var a=t.text.firstChild.getClientRects(),s=0;s<a.length-1;s++){var l=a[s],c=a[s+1];Math.abs(l.bottom-c.bottom)>2&&o.push((l.bottom+c.top)/2-n.top)}}o.push(n.bottom-n.top)}}(e,t.view,t.rect),t.hasHeights=!0),(o=function(e,t,n,r){var i,o=Mn(t.map,n,r),l=o.node,c=o.start,u=o.end,f=o.collapse;if(3==l.nodeType){for(var d=0;d<4;d++){for(;c&&re(t.line.text.charAt(o.coverStart+c));)--c;for(;o.coverStart+u<o.coverEnd&&re(t.line.text.charAt(o.coverStart+u));)++u;if((i=a&&s<9&&0==c&&u==o.coverEnd-o.coverStart?l.parentNode.getBoundingClientRect():Rn(_(l,c,u).getClientRects(),r)).left||i.right||0==c)break;u=c,c-=1,f="right"}a&&s<11&&(i=function(e,t){if(!window.screen||null==screen.logicalXDPI||screen.logicalXDPI==screen.deviceXDPI||!function(e){if(null!=je)return je;var t=S(e,N("span","x")),n=t.getBoundingClientRect(),r=_(t,0,1).getBoundingClientRect();return je=Math.abs(n.left-r.left)>1}(e))return t;var n=screen.logicalXDPI/screen.deviceXDPI,r=screen.logicalYDPI/screen.deviceYDPI;return{left:t.left*n,right:t.right*n,top:t.top*r,bottom:t.bottom*r}}(e.display.measure,i))}else{var p;c>0&&(f=r="right"),i=e.options.lineWrapping&&(p=l.getClientRects()).length>1?p["right"==r?p.length-1:0]:l.getBoundingClientRect()}if(a&&s<9&&!c&&(!i||!i.left&&!i.right)){var h=l.parentNode.getClientRects()[0];i=h?{left:h.left,right:h.left+ir(e.display),top:h.top,bottom:h.bottom}:Fn}for(var m=i.top-t.rect.top,v=i.bottom-t.rect.top,g=(m+v)/2,y=t.view.measure.heights,b=0;b<y.length-1&&!(g<y[b]);b++);var T=b?y[b-1]:0,E=y[b],O={left:("right"==f?i.right:i.left)-t.rect.left,right:("left"==f?i.left:i.right)-t.rect.left,top:T,bottom:E};return i.left||i.right||(O.bogus=!0),e.options.singleCursorHeightPerLine||(O.rtop=m,O.rbottom=v),O}(e,t,n,r)).bogus||(t.cache[l]=o)),{left:o.left,right:o.right,top:i?o.rtop:o.top,bottom:i?o.rbottom:o.bottom}}var jn,Fn={left:0,right:0,top:0,bottom:0};function Mn(e,t,n){for(var r,i,o,a,s,l,c=0;c<e.length;c+=3)if(s=e[c],l=e[c+1],t<s?(i=0,o=1,a="left"):t<l?o=1+(i=t-s):(c==e.length-3||t==l&&e[c+3]>t)&&(i=(o=l-s)-1,t>=l&&(a="right")),null!=i){if(r=e[c+2],s==l&&n==(r.insertLeft?"left":"right")&&(a=n),"left"==n&&0==i)for(;c&&e[c-2]==e[c-3]&&e[c-1].insertLeft;)r=e[2+(c-=3)],a="left";if("right"==n&&i==l-s)for(;c<e.length-3&&e[c+3]==e[c+4]&&!e[c+5].insertLeft;)r=e[(c+=3)+2],a="right";break}return{node:r,start:i,end:o,collapse:a,coverStart:s,coverEnd:l}}function Rn(e,t){var n=Fn;if("left"==t)for(var r=0;r<e.length&&(n=e[r]).left==n.right;r++);else for(var i=e.length-1;i>=0&&(n=e[i]).left==n.right;i--);return n}function Pn(e){if(e.measure&&(e.measure.cache={},e.measure.heights=null,e.rest))for(var t=0;t<e.rest.length;t++)e.measure.caches[t]={}}function Vn(e){e.display.externalMeasure=null,C(e.display.lineMeasure);for(var t=0;t<e.display.view.length;t++)Pn(e.display.view[t])}function 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l=s.left+("window"==r?0:Bn());n.left+=l,n.right+=l}return n.top+=a,n.bottom+=a,n}function zn(e,t,n){if("div"==n)return t;var r=t.left,i=t.top;if("page"==n)r-=Bn(),i-=qn();else if("local"==n||!n){var o=e.display.sizer.getBoundingClientRect();r+=o.left,i+=o.top}var a=e.display.lineSpace.getBoundingClientRect();return{left:r-a.left,top:i-a.top}}function Qn(e,t,n,r,i){return r||(r=Qe(e.doc,t.line)),Gn(e,r,Dn(e,r,t.ch,i),n)}function Kn(e,t,n,r,i,o){function a(t,a){var s=Ln(e,i,t,a?"right":"left",o);return a?s.left=s.right:s.right=s.left,Gn(e,r,s,n)}r=r||Qe(e.doc,t.line),i||(i=An(e,r));var s=ce(r,e.doc.direction),l=t.ch,c=t.sticky;if(l>=r.text.length?(l=r.text.length,c="before"):l<=0&&(l=0,c="after"),!s)return a("before"==c?l-1:l,"before"==c);function u(e,t,n){return a(n?e-1:e,1==s[t].level!=n)}var f=se(s,l,c),d=ae,p=u(l,f,"before"==c);return null!=d&&(p.other=u(l,d,"before"!=c)),p}function Wn(e,t){var n=0;t=st(e.doc,t),e.options.lineWrapping||(n=ir(e.display)*t.ch);var 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p=i[d];if(!(p.from>=c||p.to<=l)){var h=Ln(e,r,1!=p.level?Math.min(c,p.to)-1:Math.max(l,p.from)).right,m=h<o?o-h+1e9:h-o;(!u||f>m)&&(u=p,f=m)}}return u||(u=i[i.length-1]),u.from<l&&(u={from:l,to:u.to,level:u.level}),u.to>c&&(u={from:u.from,to:c,level:u.level}),u}function rr(e){if(null!=e.cachedTextHeight)return e.cachedTextHeight;if(null==jn){jn=N("pre",null,"CodeMirror-line-like");for(var t=0;t<49;++t)jn.appendChild(document.createTextNode("x")),jn.appendChild(N("br"));jn.appendChild(document.createTextNode("x"))}S(e.measure,jn);var n=jn.offsetHeight/50;return n>3&&(e.cachedTextHeight=n),C(e.measure),n||1}function ir(e){if(null!=e.cachedCharWidth)return e.cachedCharWidth;var t=N("span","xxxxxxxxxx"),n=N("pre",[t],"CodeMirror-line-like");S(e.measure,n);var r=t.getBoundingClientRect(),i=(r.right-r.left)/10;return i>2&&(e.cachedCharWidth=i),i||10}function or(e){for(var t=e.display,n={},r={},i=t.gutters.clientLeft,o=t.gutters.firstChild,a=0;o;o=o.nextSibling,++a){var s=e.display.gutterSpecs[a].className;n[s]=o.offsetLeft+o.clientLeft+i,r[s]=o.clientWidth}return{fixedPos:ar(t),gutterTotalWidth:t.gutters.offsetWidth,gutterLeft:n,gutterWidth:r,wrapperWidth:t.wrapper.clientWidth}}function ar(e){return e.scroller.getBoundingClientRect().left-e.sizer.getBoundingClientRect().left}function sr(e){var t=rr(e.display),n=e.options.lineWrapping,r=n&&Math.max(5,e.display.scroller.clientWidth/ir(e.display)-3);return function(i){if(Bt(e.doc,i))return 0;var o=0;if(i.widgets)for(var a=0;a<i.widgets.length;a++)i.widgets[a].height&&(o+=i.widgets[a].height);return n?o+(Math.ceil(i.text.length/r)||1)*t:o+t}}function lr(e){var t=e.doc,n=sr(e);t.iter((function(e){var t=n(e);t!=e.height&&Ye(e,t)}))}function cr(e,t,n,r){var i=e.display;if(!n&&"true"==we(t).getAttribute("cm-not-content"))return null;var o,a,s=i.lineSpace.getBoundingClientRect();try{o=t.clientX-s.left,a=t.clientY-s.top}catch(e){return null}var l,c=Jn(e,o,a);if(r&&c.xRel>0&&(l=Qe(e.doc,c.line).text).length==c.ch){var u=P(l,l.length,e.options.tabSize)-l.length;c=et(c.line,Math.max(0,Math.round((o-_n(e.display).left)/ir(e.display))-u))}return c}function ur(e,t){if(t>=e.display.viewTo)return null;if((t-=e.display.viewFrom)<0)return null;for(var n=e.display.view,r=0;r<n.length;r++)if((t-=n[r].size)<0)return r}function fr(e,t,n,r){null==t&&(t=e.doc.first),null==n&&(n=e.doc.first+e.doc.size),r||(r=0);var i=e.display;if(r&&n<i.viewTo&&(null==i.updateLineNumbers||i.updateLineNumbers>t)&&(i.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=i.viewTo)Ot&&Vt(e.doc,t)<i.viewTo&&pr(e);else if(n<=i.viewFrom)Ot&&Ut(e.doc,n+r)>i.viewFrom?pr(e):(i.viewFrom+=r,i.viewTo+=r);else if(t<=i.viewFrom&&n>=i.viewTo)pr(e);else if(t<=i.viewFrom){var o=hr(e,n,n+r,1);o?(i.view=i.view.slice(o.index),i.viewFrom=o.lineN,i.viewTo+=r):pr(e)}else if(n>=i.viewTo){var a=hr(e,t,t,-1);a?(i.view=i.view.slice(0,a.index),i.viewTo=a.lineN):pr(e)}else{var s=hr(e,t,t,-1),l=hr(e,n,n+r,1);s&&l?(i.view=i.view.slice(0,s.index).concat(on(e,s.lineN,l.lineN)).concat(i.view.slice(l.index)),i.viewTo+=r):pr(e)}var c=i.externalMeasured;c&&(n<c.lineN?c.lineN+=r:t<c.lineN+c.size&&(i.externalMeasured=null))}function dr(e,t,n){e.curOp.viewChanged=!0;var r=e.display,i=e.display.externalMeasured;if(i&&t>=i.lineN&&t<i.lineN+i.size&&(r.externalMeasured=null),!(t<r.viewFrom||t>=r.viewTo)){var o=r.view[ur(e,t)];if(null!=o.node){var a=o.changes||(o.changes=[]);-1==U(a,n)&&a.push(n)}}}function pr(e){e.display.viewFrom=e.display.viewTo=e.doc.first,e.display.view=[],e.display.viewOffset=0}function hr(e,t,n,r){var i,o=ur(e,t),a=e.display.view;if(!Ot||n==e.doc.first+e.doc.size)return{index:o,lineN:n};for(var s=e.display.viewFrom,l=0;l<o;l++)s+=a[l].size;if(s!=t){if(r>0){if(o==a.length-1)return null;i=s+a[o].size-t,o++}else i=s-t;t+=i,n+=i}for(;Vt(e.doc,n)!=n;){if(o==(r<0?0:a.length-1))return null;n+=r*a[o-(r<0?1:0)].size,o+=r}return{index:o,lineN:n}}function mr(e){for(var t=e.display.view,n=0,r=0;r<t.length;r++){var i=t[r];i.hidden||i.node&&!i.changes||++n}return n}function vr(e){e.display.input.showSelection(e.display.input.prepareSelection())}function gr(e,t){void 0===t&&(t=!0);for(var n=e.doc,r={},i=r.cursors=document.createDocumentFragment(),o=r.selection=document.createDocumentFragment(),a=0;a<n.sel.ranges.length;a++)if(t||a!=n.sel.primIndex){var s=n.sel.ranges[a];if(!(s.from().line>=e.display.viewTo||s.to().line<e.display.viewFrom)){var l=s.empty();(l||e.options.showCursorWhenSelecting)&&yr(e,s.head,i),l||Tr(e,s,o)}}return r}function yr(e,t,n){var r=Kn(e,t,"div",null,null,!e.options.singleCursorHeightPerLine),i=n.appendChild(N("div"," ","CodeMirror-cursor"));if(i.style.left=r.left+"px",i.style.top=r.top+"px",i.style.height=Math.max(0,r.bottom-r.top)*e.options.cursorHeight+"px",r.other){var o=n.appendChild(N("div"," ","CodeMirror-cursor CodeMirror-secondarycursor"));o.style.display="",o.style.left=r.other.left+"px",o.style.top=r.other.top+"px",o.style.height=.85*(r.other.bottom-r.other.top)+"px"}}function br(e,t){return e.top-t.top||e.left-t.left}function Tr(e,t,n){var r=e.display,i=e.doc,o=document.createDocumentFragment(),a=_n(e.display),s=a.left,l=Math.max(r.sizerWidth,Cn(e)-r.sizer.offsetLeft)-a.right,c="ltr"==i.direction;function u(e,t,n,r){t<0&&(t=0),t=Math.round(t),r=Math.round(r),o.appendChild(N("div",null,"CodeMirror-selected","position: absolute; left: "+e+"px;\n                             top: "+t+"px; width: "+(null==n?l-e:n)+"px;\n                             height: "+(r-t)+"px"))}function f(t,n,r){var o,a,f=Qe(i,t),d=f.text.length;function p(n,r){return Qn(e,et(t,n),"div",f,r)}function h(t,n,r){var i=Xn(e,f,null,t),o="ltr"==n==("after"==r)?"left":"right";return p("after"==r?i.begin:i.end-(/\s/.test(f.text.charAt(i.end-1))?2:1),o)[o]}var m=ce(f,i.direction);return function(e,t,n,r){if(!e)return r(t,n,"ltr",0);for(var i=!1,o=0;o<e.length;++o){var a=e[o];(a.from<n&&a.to>t||t==n&&a.to==t)&&(r(Math.max(a.from,t),Math.min(a.to,n),1==a.level?"rtl":"ltr",o),i=!0)}i||r(t,n,"ltr")}(m,n||0,null==r?d:r,(function(e,t,i,f){var v="ltr"==i,g=p(e,v?"left":"right"),y=p(t-1,v?"right":"left"),b=null==n&&0==e,T=null==r&&t==d,E=0==f,O=!m||f==m.length-1;if(y.top-g.top<=3){var w=(c?T:b)&&O,x=(c?b:T)&&E?s:(v?g:y).left,_=w?l:(v?y:g).right;u(x,g.top,_-x,g.bottom)}else{var k,C,S,N;v?(k=c&&b&&E?s:g.left,C=c?l:h(e,i,"before"),S=c?s:h(t,i,"after"),N=c&&T&&O?l:y.right):(k=c?h(e,i,"before"):s,C=!c&&b&&E?l:g.right,S=!c&&T&&O?s:y.left,N=c?h(t,i,"after"):l),u(k,g.top,C-k,g.bottom),g.bottom<y.top&&u(s,g.bottom,null,y.top),u(S,y.top,N-S,y.bottom)}(!o||br(g,o)<0)&&(o=g),br(y,o)<0&&(o=y),(!a||br(g,a)<0)&&(a=g),br(y,a)<0&&(a=y)})),{start:o,end:a}}var d=t.from(),p=t.to();if(d.line==p.line)f(d.line,d.ch,p.ch);else{var h=Qe(i,d.line),m=Qe(i,p.line),v=Pt(h)==Pt(m),g=f(d.line,d.ch,v?h.text.length+1:null).end,y=f(p.line,v?0:null,p.ch).start;v&&(g.top<y.top-2?(u(g.right,g.top,null,g.bottom),u(s,y.top,y.left,y.bottom)):u(g.right,g.top,y.left-g.right,g.bottom)),g.bottom<y.top&&u(s,g.bottom,null,y.top)}n.appendChild(o)}function Er(e){if(e.state.focused){var t=e.display;clearInterval(t.blinker);var n=!0;t.cursorDiv.style.visibility="",e.options.cursorBlinkRate>0?t.blinker=setInterval((function(){return t.cursorDiv.style.visibility=(n=!n)?"":"hidden"}),e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function Or(e){e.state.focused||(e.display.input.focus(),xr(e))}function wr(e){e.state.delayingBlurEvent=!0,setTimeout((function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,_r(e))}),100)}function xr(e,t){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(he(e,"focus",e,t),e.state.focused=!0,L(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),l&&setTimeout((function(){return e.display.input.reset(!0)}),20)),e.display.input.receivedFocus()),Er(e))}function _r(e,t){e.state.delayingBlurEvent||(e.state.focused&&(he(e,"blur",e,t),e.state.focused=!1,k(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout((function(){e.state.focused||(e.display.shift=!1)}),150))}function kr(e){for(var t=e.display,n=t.lineDiv.offsetTop,r=0;r<t.view.length;r++){var i=t.view[r],o=e.options.lineWrapping,l=void 0,c=0;if(!i.hidden){if(a&&s<8){var u=i.node.offsetTop+i.node.offsetHeight;l=u-n,n=u}else{var f=i.node.getBoundingClientRect();l=f.bottom-f.top,!o&&i.text.firstChild&&(c=i.text.firstChild.getBoundingClientRect().right-f.left-1)}var d=i.line.height-l;if((d>.005||d<-.005)&&(Ye(i.line,l),Cr(i.line),i.rest))for(var p=0;p<i.rest.length;p++)Cr(i.rest[p]);if(c>e.display.sizerWidth){var h=Math.ceil(c/ir(e.display));h>e.display.maxLineLength&&(e.display.maxLineLength=h,e.display.maxLine=i.line,e.display.maxLineChanged=!0)}}}}function Cr(e){if(e.widgets)for(var t=0;t<e.widgets.length;++t){var n=e.widgets[t],r=n.node.parentNode;r&&(n.height=r.offsetHeight)}}function Sr(e,t,n){var r=n&&null!=n.top?Math.max(0,n.top):e.scroller.scrollTop;r=Math.floor(r-wn(e));var i=n&&null!=n.bottom?n.bottom:r+e.wrapper.clientHeight,o=$e(t,r),a=$e(t,i);if(n&&n.ensure){var s=n.ensure.from.line,l=n.ensure.to.line;s<o?(o=s,a=$e(t,Ht(Qe(t,s))+e.wrapper.clientHeight)):Math.min(l,t.lastLine())>=a&&(o=$e(t,Ht(Qe(t,l))-e.wrapper.clientHeight),a=l)}return{from:o,to:Math.max(a,o+1)}}function Nr(e,t){var n=e.display,r=rr(e.display);t.top<0&&(t.top=0);var i=e.curOp&&null!=e.curOp.scrollTop?e.curOp.scrollTop:n.scroller.scrollTop,o=Sn(e),a={};t.bottom-t.top>o&&(t.bottom=t.top+o);var s=e.doc.height+xn(n),l=t.top<r,c=t.bottom>s-r;if(t.top<i)a.scrollTop=l?0:t.top;else if(t.bottom>i+o){var u=Math.min(t.top,(c?s:t.bottom)-o);u!=i&&(a.scrollTop=u)}var f=e.curOp&&null!=e.curOp.scrollLeft?e.curOp.scrollLeft:n.scroller.scrollLeft,d=Cn(e)-(e.options.fixedGutter?n.gutters.offsetWidth:0),p=t.right-t.left>d;return p&&(t.right=t.left+d),t.left<10?a.scrollLeft=0:t.left<f?a.scrollLeft=Math.max(0,t.left-(p?0:10)):t.right>d+f-3&&(a.scrollLeft=t.right+(p?0:10)-d),a}function Dr(e,t){null!=t&&(Lr(e),e.curOp.scrollTop=(null==e.curOp.scrollTop?e.doc.scrollTop:e.curOp.scrollTop)+t)}function Ir(e){Lr(e);var t=e.getCursor();e.curOp.scrollToPos={from:t,to:t,margin:e.options.cursorScrollMargin}}function Ar(e,t,n){null==t&&null==n||Lr(e),null!=t&&(e.curOp.scrollLeft=t),null!=n&&(e.curOp.scrollTop=n)}function Lr(e){var t=e.curOp.scrollToPos;t&&(e.curOp.scrollToPos=null,jr(e,Wn(e,t.from),Wn(e,t.to),t.margin))}function jr(e,t,n,r){var i=Nr(e,{left:Math.min(t.left,n.left),top:Math.min(t.top,n.top)-r,right:Math.max(t.right,n.right),bottom:Math.max(t.bottom,n.bottom)+r});Ar(e,i.scrollLeft,i.scrollTop)}function Fr(e,t){Math.abs(e.doc.scrollTop-t)<2||(n||li(e,{top:t}),Mr(e,t,!0),n&&li(e),ri(e,100))}function Mr(e,t,n){t=Math.max(0,Math.min(e.display.scroller.scrollHeight-e.display.scroller.clientHeight,t)),(e.display.scroller.scrollTop!=t||n)&&(e.doc.scrollTop=t,e.display.scrollbars.setScrollTop(t),e.display.scroller.scrollTop!=t&&(e.display.scroller.scrollTop=t))}function Rr(e,t,n,r){t=Math.max(0,Math.min(t,e.display.scroller.scrollWidth-e.display.scroller.clientWidth)),(n?t==e.doc.scrollLeft:Math.abs(e.doc.scrollLeft-t)<2)&&!r||(e.doc.scrollLeft=t,fi(e),e.display.scroller.scrollLeft!=t&&(e.display.scroller.scrollLeft=t),e.display.scrollbars.setScrollLeft(t))}function Pr(e){var t=e.display,n=t.gutters.offsetWidth,r=Math.round(e.doc.height+xn(e.display));return{clientHeight:t.scroller.clientHeight,viewHeight:t.wrapper.clientHeight,scrollWidth:t.scroller.scrollWidth,clientWidth:t.scroller.clientWidth,viewWidth:t.wrapper.clientWidth,barLeft:e.options.fixedGutter?n:0,docHeight:r,scrollHeight:r+kn(e)+t.barHeight,nativeBarWidth:t.nativeBarWidth,gutterWidth:n}}var Vr=function(e,t,n){this.cm=n;var r=this.vert=N("div",[N("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),i=this.horiz=N("div",[N("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");r.tabIndex=i.tabIndex=-1,e(r),e(i),fe(r,"scroll",(function(){r.clientHeight&&t(r.scrollTop,"vertical")})),fe(i,"scroll",(function(){i.clientWidth&&t(i.scrollLeft,"horizontal")})),this.checkedZeroWidth=!1,a&&s<8&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")};Vr.prototype.update=function(e){var t=e.scrollWidth>e.clientWidth+1,n=e.scrollHeight>e.clientHeight+1,r=e.nativeBarWidth;if(n){this.vert.style.display="block",this.vert.style.bottom=t?r+"px":"0";var i=e.viewHeight-(t?r:0);this.vert.firstChild.style.height=Math.max(0,e.scrollHeight-e.clientHeight+i)+"px"}else this.vert.style.display="",this.vert.firstChild.style.height="0";if(t){this.horiz.style.display="block",this.horiz.style.right=n?r+"px":"0",this.horiz.style.left=e.barLeft+"px";var o=e.viewWidth-e.barLeft-(n?r:0);this.horiz.firstChild.style.width=Math.max(0,e.scrollWidth-e.clientWidth+o)+"px"}else this.horiz.style.display="",this.horiz.firstChild.style.width="0";return!this.checkedZeroWidth&&e.clientHeight>0&&(0==r&&this.zeroWidthHack(),this.checkedZeroWidth=!0),{right:n?r:0,bottom:t?r:0}},Vr.prototype.setScrollLeft=function(e){this.horiz.scrollLeft!=e&&(this.horiz.scrollLeft=e),this.disableHoriz&&this.enableZeroWidthBar(this.horiz,this.disableHoriz,"horiz")},Vr.prototype.setScrollTop=function(e){this.vert.scrollTop!=e&&(this.vert.scrollTop=e),this.disableVert&&this.enableZeroWidthBar(this.vert,this.disableVert,"vert")},Vr.prototype.zeroWidthHack=function(){var e=y&&!p?"12px":"18px";this.horiz.style.height=this.vert.style.width=e,this.horiz.style.pointerEvents=this.vert.style.pointerEvents="none",this.disableHoriz=new V,this.disableVert=new V},Vr.prototype.enableZeroWidthBar=function(e,t,n){e.style.pointerEvents="auto",t.set(1e3,(function r(){var i=e.getBoundingClientRect();("vert"==n?document.elementFromPoint(i.right-1,(i.top+i.bottom)/2):document.elementFromPoint((i.right+i.left)/2,i.bottom-1))!=e?e.style.pointerEvents="none":t.set(1e3,r)}))},Vr.prototype.clear=function(){var e=this.horiz.parentNode;e.removeChild(this.horiz),e.removeChild(this.vert)};var Ur=function(){};function Br(e,t){t||(t=Pr(e));var n=e.display.barWidth,r=e.display.barHeight;qr(e,t);for(var i=0;i<4&&n!=e.display.barWidth||r!=e.display.barHeight;i++)n!=e.display.barWidth&&e.options.lineWrapping&&kr(e),qr(e,Pr(e)),n=e.display.barWidth,r=e.display.barHeight}function qr(e,t){var n=e.display,r=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=r.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=r.bottom)+"px",n.heightForcer.style.borderBottom=r.bottom+"px solid transparent",r.right&&r.bottom?(n.scrollbarFiller.style.display="block",n.scrollbarFiller.style.height=r.bottom+"px",n.scrollbarFiller.style.width=r.right+"px"):n.scrollbarFiller.style.display="",r.bottom&&e.options.coverGutterNextToScrollbar&&e.options.fixedGutter?(n.gutterFiller.style.display="block",n.gutterFiller.style.height=r.bottom+"px",n.gutterFiller.style.width=t.gutterWidth+"px"):n.gutterFiller.style.display=""}Ur.prototype.update=function(){return{bottom:0,right:0}},Ur.prototype.setScrollLeft=function(){},Ur.prototype.setScrollTop=function(){},Ur.prototype.clear=function(){};var Hr={native:Vr,null:Ur};function Gr(e){e.display.scrollbars&&(e.display.scrollbars.clear(),e.display.scrollbars.addClass&&k(e.display.wrapper,e.display.scrollbars.addClass)),e.display.scrollbars=new Hr[e.options.scrollbarStyle]((function(t){e.display.wrapper.insertBefore(t,e.display.scrollbarFiller),fe(t,"mousedown",(function(){e.state.focused&&setTimeout((function(){return e.display.input.focus()}),0)})),t.setAttribute("cm-not-content","true")}),(function(t,n){"horizontal"==n?Rr(e,t):Fr(e,t)}),e),e.display.scrollbars.addClass&&L(e.display.wrapper,e.display.scrollbars.addClass)}var zr=0;function Qr(e){var t;e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:0,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++zr},t=e.curOp,an?an.ops.push(t):t.ownsGroup=an={ops:[t],delayedCallbacks:[]}}function Kr(e){var t=e.curOp;t&&function(e,t){var n=e.ownsGroup;if(n)try{!function(e){var t=e.delayedCallbacks,n=0;do{for(;n<t.length;n++)t[n].call(null);for(var r=0;r<e.ops.length;r++){var i=e.ops[r];if(i.cursorActivityHandlers)for(;i.cursorActivityCalled<i.cursorActivityHandlers.length;)i.cursorActivityHandlers[i.cursorActivityCalled++].call(null,i.cm)}}while(n<t.length)}(n)}finally{an=null,t(n)}}(t,(function(e){for(var t=0;t<e.ops.length;t++)e.ops[t].cm.curOp=null;!function(e){for(var t=e.ops,n=0;n<t.length;n++)Wr(t[n]);for(var r=0;r<t.length;r++)Yr(t[r]);for(var i=0;i<t.length;i++)Jr(t[i]);for(var o=0;o<t.length;o++)$r(t[o]);for(var a=0;a<t.length;a++)Xr(t[a])}(e)}))}function Wr(e){var t=e.cm,n=t.display;!function(e){var t=e.display;!t.scrollbarsClipped&&t.scroller.offsetWidth&&(t.nativeBarWidth=t.scroller.offsetWidth-t.scroller.clientWidth,t.heightForcer.style.height=kn(e)+"px",t.sizer.style.marginBottom=-t.nativeBarWidth+"px",t.sizer.style.borderRightWidth=kn(e)+"px",t.scrollbarsClipped=!0)}(t),e.updateMaxLine&&zt(t),e.mustUpdate=e.viewChanged||e.forceUpdate||null!=e.scrollTop||e.scrollToPos&&(e.scrollToPos.from.line<n.viewFrom||e.scrollToPos.to.line>=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new oi(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}function Yr(e){e.updatedDisplay=e.mustUpdate&&ai(e.cm,e.update)}function Jr(e){var t=e.cm,n=t.display;e.updatedDisplay&&kr(t),e.barMeasure=Pr(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=Dn(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+kn(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-Cn(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection())}function $r(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeft<t.doc.scrollLeft&&Rr(t,Math.min(t.display.scroller.scrollLeft,e.maxScrollLeft),!0),t.display.maxLineChanged=!1);var n=e.focus&&e.focus==A();e.preparedSelection&&t.display.input.showSelection(e.preparedSelection,n),(e.updatedDisplay||e.startHeight!=t.doc.height)&&Br(t,e.barMeasure),e.updatedDisplay&&ui(t,e.barMeasure),e.selectionChanged&&Er(t),t.state.focused&&e.updateInput&&t.display.input.reset(e.typing),n&&Or(e.cm)}function Xr(e){var t=e.cm,n=t.display,r=t.doc;e.updatedDisplay&&si(t,e.update),null==n.wheelStartX||null==e.scrollTop&&null==e.scrollLeft&&!e.scrollToPos||(n.wheelStartX=n.wheelStartY=null),null!=e.scrollTop&&Mr(t,e.scrollTop,e.forceScroll),null!=e.scrollLeft&&Rr(t,e.scrollLeft,!0,!0),e.scrollToPos&&function(e,t){if(!me(e,"scrollCursorIntoView")){var n=e.display,r=n.sizer.getBoundingClientRect(),i=null;if(t.top+r.top<0?i=!0:t.bottom+r.top>(window.innerHeight||document.documentElement.clientHeight)&&(i=!1),null!=i&&!h){var o=N("div","​",null,"position: absolute;\n                         top: "+(t.top-n.viewOffset-wn(e.display))+"px;\n                         height: "+(t.bottom-t.top+kn(e)+n.barHeight)+"px;\n                         left: "+t.left+"px; width: "+Math.max(2,t.right-t.left)+"px;");e.display.lineSpace.appendChild(o),o.scrollIntoView(i),e.display.lineSpace.removeChild(o)}}}(t,function(e,t,n,r){var i;null==r&&(r=0),e.options.lineWrapping||t!=n||(n="before"==(t=t.ch?et(t.line,"before"==t.sticky?t.ch-1:t.ch,"after"):t).sticky?et(t.line,t.ch+1,"before"):t);for(var o=0;o<5;o++){var a=!1,s=Kn(e,t),l=n&&n!=t?Kn(e,n):s,c=Nr(e,i={left:Math.min(s.left,l.left),top:Math.min(s.top,l.top)-r,right:Math.max(s.left,l.left),bottom:Math.max(s.bottom,l.bottom)+r}),u=e.doc.scrollTop,f=e.doc.scrollLeft;if(null!=c.scrollTop&&(Fr(e,c.scrollTop),Math.abs(e.doc.scrollTop-u)>1&&(a=!0)),null!=c.scrollLeft&&(Rr(e,c.scrollLeft),Math.abs(e.doc.scrollLeft-f)>1&&(a=!0)),!a)break}return i}(t,st(r,e.scrollToPos.from),st(r,e.scrollToPos.to),e.scrollToPos.margin));var i=e.maybeHiddenMarkers,o=e.maybeUnhiddenMarkers;if(i)for(var a=0;a<i.length;++a)i[a].lines.length||he(i[a],"hide");if(o)for(var s=0;s<o.length;++s)o[s].lines.length&&he(o[s],"unhide");n.wrapper.offsetHeight&&(r.scrollTop=t.display.scroller.scrollTop),e.changeObjs&&he(t,"changes",t,e.changeObjs),e.update&&e.update.finish()}function Zr(e,t){if(e.curOp)return t();Qr(e);try{return t()}finally{Kr(e)}}function ei(e,t){return function(){if(e.curOp)return t.apply(e,arguments);Qr(e);try{return t.apply(e,arguments)}finally{Kr(e)}}}function ti(e){return function(){if(this.curOp)return e.apply(this,arguments);Qr(this);try{return e.apply(this,arguments)}finally{Kr(this)}}}function ni(e){return function(){var t=this.cm;if(!t||t.curOp)return e.apply(this,arguments);Qr(t);try{return e.apply(this,arguments)}finally{Kr(t)}}}function ri(e,t){e.doc.highlightFrontier<e.display.viewTo&&e.state.highlight.set(t,M(ii,e))}function ii(e){var t=e.doc;if(!(t.highlightFrontier>=e.display.viewTo)){var n=+new Date+e.options.workTime,r=pt(e,t.highlightFrontier),i=[];t.iter(r.line,Math.min(t.first+t.size,e.display.viewTo+500),(function(o){if(r.line>=e.display.viewFrom){var a=o.styles,s=o.text.length>e.options.maxHighlightLength?qe(t.mode,r.state):null,l=ft(e,o,r,!0);s&&(r.state=s),o.styles=l.styles;var c=o.styleClasses,u=l.classes;u?o.styleClasses=u:c&&(o.styleClasses=null);for(var f=!a||a.length!=o.styles.length||c!=u&&(!c||!u||c.bgClass!=u.bgClass||c.textClass!=u.textClass),d=0;!f&&d<a.length;++d)f=a[d]!=o.styles[d];f&&i.push(r.line),o.stateAfter=r.save(),r.nextLine()}else o.text.length<=e.options.maxHighlightLength&&ht(e,o.text,r),o.stateAfter=r.line%5==0?r.save():null,r.nextLine();if(+new Date>n)return ri(e,e.options.workDelay),!0})),t.highlightFrontier=r.line,t.modeFrontier=Math.max(t.modeFrontier,r.line),i.length&&Zr(e,(function(){for(var t=0;t<i.length;t++)dr(e,i[t],"text")}))}}var oi=function(e,t,n){var r=e.display;this.viewport=t,this.visible=Sr(r,e.doc,t),this.editorIsHidden=!r.wrapper.offsetWidth,this.wrapperHeight=r.wrapper.clientHeight,this.wrapperWidth=r.wrapper.clientWidth,this.oldDisplayWidth=Cn(e),this.force=n,this.dims=or(e),this.events=[]};function ai(e,t){var n=e.display,r=e.doc;if(t.editorIsHidden)return pr(e),!1;if(!t.force&&t.visible.from>=n.viewFrom&&t.visible.to<=n.viewTo&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo)&&n.renderedView==n.view&&0==mr(e))return!1;di(e)&&(pr(e),t.dims=or(e));var i=r.first+r.size,o=Math.max(t.visible.from-e.options.viewportMargin,r.first),a=Math.min(i,t.visible.to+e.options.viewportMargin);n.viewFrom<o&&o-n.viewFrom<20&&(o=Math.max(r.first,n.viewFrom)),n.viewTo>a&&n.viewTo-a<20&&(a=Math.min(i,n.viewTo)),Ot&&(o=Vt(e.doc,o),a=Ut(e.doc,a));var s=o!=n.viewFrom||a!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;!function(e,t,n){var r=e.display;0==r.view.length||t>=r.viewTo||n<=r.viewFrom?(r.view=on(e,t,n),r.viewFrom=t):(r.viewFrom>t?r.view=on(e,t,r.viewFrom).concat(r.view):r.viewFrom<t&&(r.view=r.view.slice(ur(e,t))),r.viewFrom=t,r.viewTo<n?r.view=r.view.concat(on(e,r.viewTo,n)):r.viewTo>n&&(r.view=r.view.slice(0,ur(e,n)))),r.viewTo=n}(e,o,a),n.viewOffset=Ht(Qe(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";var c=mr(e);if(!s&&0==c&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;var u=function(e){if(e.hasFocus())return null;var t=A();if(!t||!I(e.display.lineDiv,t))return null;var n={activeElt:t};if(window.getSelection){var r=window.getSelection();r.anchorNode&&r.extend&&I(e.display.lineDiv,r.anchorNode)&&(n.anchorNode=r.anchorNode,n.anchorOffset=r.anchorOffset,n.focusNode=r.focusNode,n.focusOffset=r.focusOffset)}return n}(e);return c>4&&(n.lineDiv.style.display="none"),function(e,t,n){var r=e.display,i=e.options.lineNumbers,o=r.lineDiv,a=o.firstChild;function s(t){var n=t.nextSibling;return l&&y&&e.display.currentWheelTarget==t?t.style.display="none":t.parentNode.removeChild(t),n}for(var c=r.view,u=r.viewFrom,f=0;f<c.length;f++){var d=c[f];if(d.hidden);else if(d.node&&d.node.parentNode==o){for(;a!=d.node;)a=s(a);var p=i&&null!=t&&t<=u&&d.lineNumber;d.changes&&(U(d.changes,"gutter")>-1&&(p=!1),un(e,d,u,n)),p&&(C(d.lineNumber),d.lineNumber.appendChild(document.createTextNode(Ze(e.options,u)))),a=d.node.nextSibling}else{var h=gn(e,d,u,n);o.insertBefore(h,a)}u+=d.size}for(;a;)a=s(a)}(e,n.updateLineNumbers,t.dims),c>4&&(n.lineDiv.style.display=""),n.renderedView=n.view,function(e){if(e&&e.activeElt&&e.activeElt!=A()&&(e.activeElt.focus(),!/^(INPUT|TEXTAREA)$/.test(e.activeElt.nodeName)&&e.anchorNode&&I(document.body,e.anchorNode)&&I(document.body,e.focusNode))){var t=window.getSelection(),n=document.createRange();n.setEnd(e.anchorNode,e.anchorOffset),n.collapse(!1),t.removeAllRanges(),t.addRange(n),t.extend(e.focusNode,e.focusOffset)}}(u),C(n.cursorDiv),C(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,s&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,ri(e,400)),n.updateLineNumbers=null,!0}function si(e,t){for(var n=t.viewport,r=!0;;r=!1){if(r&&e.options.lineWrapping&&t.oldDisplayWidth!=Cn(e))r&&(t.visible=Sr(e.display,e.doc,n));else if(n&&null!=n.top&&(n={top:Math.min(e.doc.height+xn(e.display)-Sn(e),n.top)}),t.visible=Sr(e.display,e.doc,n),t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)break;if(!ai(e,t))break;kr(e);var i=Pr(e);vr(e),Br(e,i),ui(e,i),t.force=!1}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function li(e,t){var n=new oi(e,t);if(ai(e,n)){kr(e),si(e,n);var r=Pr(e);vr(e),Br(e,r),ui(e,r),n.finish()}}function ci(e){var t=e.gutters.offsetWidth;e.sizer.style.marginLeft=t+"px"}function ui(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+kn(e)+"px"}function fi(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=ar(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",a=0;a<n.length;a++)if(!n[a].hidden){e.options.fixedGutter&&(n[a].gutter&&(n[a].gutter.style.left=o),n[a].gutterBackground&&(n[a].gutterBackground.style.left=o));var s=n[a].alignable;if(s)for(var l=0;l<s.length;l++)s[l].style.left=o}e.options.fixedGutter&&(t.gutters.style.left=r+i+"px")}}function di(e){if(!e.options.lineNumbers)return!1;var t=e.doc,n=Ze(e.options,t.first+t.size-1),r=e.display;if(n.length!=r.lineNumChars){var i=r.measure.appendChild(N("div",[N("div",n)],"CodeMirror-linenumber CodeMirror-gutter-elt")),o=i.firstChild.offsetWidth,a=i.offsetWidth-o;return r.lineGutter.style.width="",r.lineNumInnerWidth=Math.max(o,r.lineGutter.offsetWidth-a)+1,r.lineNumWidth=r.lineNumInnerWidth+a,r.lineNumChars=r.lineNumInnerWidth?n.length:-1,r.lineGutter.style.width=r.lineNumWidth+"px",ci(e.display),!0}return!1}function pi(e,t){for(var n=[],r=!1,i=0;i<e.length;i++){var o=e[i],a=null;if("string"!=typeof o&&(a=o.style,o=o.className),"CodeMirror-linenumbers"==o){if(!t)continue;r=!0}n.push({className:o,style:a})}return t&&!r&&n.push({className:"CodeMirror-linenumbers",style:null}),n}function hi(e){var t=e.gutters,n=e.gutterSpecs;C(t),e.lineGutter=null;for(var r=0;r<n.length;++r){var i=n[r],o=i.className,a=i.style,s=t.appendChild(N("div",null,"CodeMirror-gutter "+o));a&&(s.style.cssText=a),"CodeMirror-linenumbers"==o&&(e.lineGutter=s,s.style.width=(e.lineNumWidth||1)+"px")}t.style.display=n.length?"":"none",ci(e)}function mi(e){hi(e.display),fr(e),fi(e)}function vi(e,t,r,i){var o=this;this.input=r,o.scrollbarFiller=N("div",null,"CodeMirror-scrollbar-filler"),o.scrollbarFiller.setAttribute("cm-not-content","true"),o.gutterFiller=N("div",null,"CodeMirror-gutter-filler"),o.gutterFiller.setAttribute("cm-not-content","true"),o.lineDiv=D("div",null,"CodeMirror-code"),o.selectionDiv=N("div",null,null,"position: relative; z-index: 1"),o.cursorDiv=N("div",null,"CodeMirror-cursors"),o.measure=N("div",null,"CodeMirror-measure"),o.lineMeasure=N("div",null,"CodeMirror-measure"),o.lineSpace=D("div",[o.measure,o.lineMeasure,o.selectionDiv,o.cursorDiv,o.lineDiv],null,"position: relative; outline: none");var c=D("div",[o.lineSpace],"CodeMirror-lines");o.mover=N("div",[c],null,"position: relative"),o.sizer=N("div",[o.mover],"CodeMirror-sizer"),o.sizerWidth=null,o.heightForcer=N("div",null,null,"position: absolute; height: 50px; width: 1px;"),o.gutters=N("div",null,"CodeMirror-gutters"),o.lineGutter=null,o.scroller=N("div",[o.sizer,o.heightForcer,o.gutters],"CodeMirror-scroll"),o.scroller.setAttribute("tabIndex","-1"),o.wrapper=N("div",[o.scrollbarFiller,o.gutterFiller,o.scroller],"CodeMirror"),a&&s<8&&(o.gutters.style.zIndex=-1,o.scroller.style.paddingRight=0),l||n&&g||(o.scroller.draggable=!0),e&&(e.appendChild?e.appendChild(o.wrapper):e(o.wrapper)),o.viewFrom=o.viewTo=t.first,o.reportedViewFrom=o.reportedViewTo=t.first,o.view=[],o.renderedView=null,o.externalMeasured=null,o.viewOffset=0,o.lastWrapHeight=o.lastWrapWidth=0,o.updateLineNumbers=null,o.nativeBarWidth=o.barHeight=o.barWidth=0,o.scrollbarsClipped=!1,o.lineNumWidth=o.lineNumInnerWidth=o.lineNumChars=null,o.alignWidgets=!1,o.cachedCharWidth=o.cachedTextHeight=o.cachedPaddingH=null,o.maxLine=null,o.maxLineLength=0,o.maxLineChanged=!1,o.wheelDX=o.wheelDY=o.wheelStartX=o.wheelStartY=null,o.shift=!1,o.selForContextMenu=null,o.activeTouch=null,o.gutterSpecs=pi(i.gutters,i.lineNumbers),hi(o),r.init(o)}oi.prototype.signal=function(e,t){ge(e,t)&&this.events.push(arguments)},oi.prototype.finish=function(){for(var e=0;e<this.events.length;e++)he.apply(null,this.events[e])};var gi=0,yi=null;function bi(e){var t=e.wheelDeltaX,n=e.wheelDeltaY;return null==t&&e.detail&&e.axis==e.HORIZONTAL_AXIS&&(t=e.detail),null==n&&e.detail&&e.axis==e.VERTICAL_AXIS?n=e.detail:null==n&&(n=e.wheelDelta),{x:t,y:n}}function Ti(e){var t=bi(e);return t.x*=yi,t.y*=yi,t}function Ei(e,t){var r=bi(t),i=r.x,o=r.y,a=e.display,s=a.scroller,c=s.scrollWidth>s.clientWidth,u=s.scrollHeight>s.clientHeight;if(i&&c||o&&u){if(o&&y&&l)e:for(var d=t.target,p=a.view;d!=s;d=d.parentNode)for(var h=0;h<p.length;h++)if(p[h].node==d){e.display.currentWheelTarget=d;break e}if(i&&!n&&!f&&null!=yi)return o&&u&&Fr(e,Math.max(0,s.scrollTop+o*yi)),Rr(e,Math.max(0,s.scrollLeft+i*yi)),(!o||o&&u)&&be(t),void(a.wheelStartX=null);if(o&&null!=yi){var m=o*yi,v=e.doc.scrollTop,g=v+a.wrapper.clientHeight;m<0?v=Math.max(0,v+m-50):g=Math.min(e.doc.height,g+m+50),li(e,{top:v,bottom:g})}gi<20&&(null==a.wheelStartX?(a.wheelStartX=s.scrollLeft,a.wheelStartY=s.scrollTop,a.wheelDX=i,a.wheelDY=o,setTimeout((function(){if(null!=a.wheelStartX){var e=s.scrollLeft-a.wheelStartX,t=s.scrollTop-a.wheelStartY,n=t&&a.wheelDY&&t/a.wheelDY||e&&a.wheelDX&&e/a.wheelDX;a.wheelStartX=a.wheelStartY=null,n&&(yi=(yi*gi+n)/(gi+1),++gi)}}),200)):(a.wheelDX+=i,a.wheelDY+=o))}}a?yi=-.53:n?yi=15:u?yi=-.7:d&&(yi=-1/3);var Oi=function(e,t){this.ranges=e,this.primIndex=t};Oi.prototype.primary=function(){return this.ranges[this.primIndex]},Oi.prototype.equals=function(e){if(e==this)return!0;if(e.primIndex!=this.primIndex||e.ranges.length!=this.ranges.length)return!1;for(var t=0;t<this.ranges.length;t++){var n=this.ranges[t],r=e.ranges[t];if(!nt(n.anchor,r.anchor)||!nt(n.head,r.head))return!1}return!0},Oi.prototype.deepCopy=function(){for(var e=[],t=0;t<this.ranges.length;t++)e[t]=new wi(rt(this.ranges[t].anchor),rt(this.ranges[t].head));return new Oi(e,this.primIndex)},Oi.prototype.somethingSelected=function(){for(var e=0;e<this.ranges.length;e++)if(!this.ranges[e].empty())return!0;return!1},Oi.prototype.contains=function(e,t){t||(t=e);for(var n=0;n<this.ranges.length;n++){var r=this.ranges[n];if(tt(t,r.from())>=0&&tt(e,r.to())<=0)return n}return-1};var wi=function(e,t){this.anchor=e,this.head=t};function xi(e,t,n){var r=e&&e.options.selectionsMayTouch,i=t[n];t.sort((function(e,t){return tt(e.from(),t.from())})),n=U(t,i);for(var o=1;o<t.length;o++){var a=t[o],s=t[o-1],l=tt(s.to(),a.from());if(r&&!a.empty()?l>0:l>=0){var c=ot(s.from(),a.from()),u=it(s.to(),a.to()),f=s.empty()?a.from()==a.head:s.from()==s.head;o<=n&&--n,t.splice(--o,2,new wi(f?u:c,f?c:u))}}return new Oi(t,n)}function _i(e,t){return new Oi([new wi(e,t||e)],0)}function ki(e){return e.text?et(e.from.line+e.text.length-1,W(e.text).length+(1==e.text.length?e.from.ch:0)):e.to}function Ci(e,t){if(tt(e,t.from)<0)return e;if(tt(e,t.to)<=0)return ki(t);var n=e.line+t.text.length-(t.to.line-t.from.line)-1,r=e.ch;return e.line==t.to.line&&(r+=ki(t).ch-t.to.ch),et(n,r)}function Si(e,t){for(var n=[],r=0;r<e.sel.ranges.length;r++){var i=e.sel.ranges[r];n.push(new wi(Ci(i.anchor,t),Ci(i.head,t)))}return xi(e.cm,n,e.sel.primIndex)}function Ni(e,t,n){return e.line==t.line?et(n.line,e.ch-t.ch+n.ch):et(n.line+(e.line-t.line),e.ch)}function Di(e){e.doc.mode=Ve(e.options,e.doc.modeOption),Ii(e)}function Ii(e){e.doc.iter((function(e){e.stateAfter&&(e.stateAfter=null),e.styles&&(e.styles=null)})),e.doc.modeFrontier=e.doc.highlightFrontier=e.doc.first,ri(e,100),e.state.modeGen++,e.curOp&&fr(e)}function Ai(e,t){return 0==t.from.ch&&0==t.to.ch&&""==W(t.text)&&(!e.cm||e.cm.options.wholeLineUpdateBefore)}function Li(e,t,n,r){function i(e){return n?n[e]:null}function 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n=e,r=e+t;n<r;++n){var i=this.lines[n];this.height-=i.height,Kt(i),ln(i,"delete")}this.lines.splice(e,t)},collapse:function(e){e.push.apply(e,this.lines)},insertInner:function(e,t,n){this.height+=n,this.lines=this.lines.slice(0,e).concat(t).concat(this.lines.slice(e));for(var r=0;r<t.length;++r)t[r].parent=this},iterN:function(e,t,n){for(var r=e+t;e<r;++e)if(n(this.lines[e]))return!0}},Eo.prototype={chunkSize:function(){return this.size},removeInner:function(e,t){this.size-=t;for(var n=0;n<this.children.length;++n){var r=this.children[n],i=r.chunkSize();if(e<i){var o=Math.min(t,i-e),a=r.height;if(r.removeInner(e,o),this.height-=a-r.height,i==o&&(this.children.splice(n--,1),r.parent=null),0==(t-=o))break;e=0}else e-=i}if(this.size-t<25&&(this.children.length>1||!(this.children[0]instanceof To))){var s=[];this.collapse(s),this.children=[new To(s)],this.children[0].parent=this}},collapse:function(e){for(var t=0;t<this.children.length;++t)this.children[t].collapse(e)},insertInner:function(e,t,n){this.size+=t.length,this.height+=n;for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<=o){if(i.insertInner(e,t,n),i.lines&&i.lines.length>50){for(var a=i.lines.length%25+25,s=a;s<i.lines.length;){var l=new To(i.lines.slice(s,s+=25));i.height-=l.height,this.children.splice(++r,0,l),l.parent=this}i.lines=i.lines.slice(0,a),this.maybeSpill()}break}e-=o}},maybeSpill:function(){if(!(this.children.length<=10)){var e=this;do{var t=new Eo(e.children.splice(e.children.length-5,5));if(e.parent){e.size-=t.size,e.height-=t.height;var n=U(e.parent.children,e);e.parent.children.splice(n+1,0,t)}else{var r=new Eo(e.children);r.parent=e,e.children=[r,t],e=r}t.parent=e.parent}while(e.children.length>10);e.parent.maybeSpill()}},iterN:function(e,t,n){for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<o){var a=Math.min(t,o-e);if(i.iterN(e,a,n))return!0;if(0==(t-=a))break;e=0}else e-=o}}};var Oo=function(e,t,n){if(n)for(var r in n)n.hasOwnProperty(r)&&(this[r]=n[r]);this.doc=e,this.node=t};function wo(e,t,n){Ht(t)<(e.curOp&&e.curOp.scrollTop||e.doc.scrollTop)&&Dr(e,n)}Oo.prototype.clear=function(){var e=this.doc.cm,t=this.line.widgets,n=this.line,r=Je(n);if(null!=r&&t){for(var i=0;i<t.length;++i)t[i]==this&&t.splice(i--,1);t.length||(n.widgets=null);var o=En(this);Ye(n,Math.max(0,n.height-o)),e&&(Zr(e,(function(){wo(e,n,-o),dr(e,r,"widget")})),ln(e,"lineWidgetCleared",e,this,r))}},Oo.prototype.changed=function(){var e=this,t=this.height,n=this.doc.cm,r=this.line;this.height=null;var i=En(this)-t;i&&(Bt(this.doc,r)||Ye(r,r.height+i),n&&Zr(n,(function(){n.curOp.forceUpdate=!0,wo(n,r,i),ln(n,"lineWidgetChanged",n,e,Je(r))})))},ye(Oo);var xo=0,_o=function(e,t){this.lines=[],this.type=t,this.doc=e,this.id=++xo};function ko(e,t,n,r,i){if(r&&r.shared)return function(e,t,n,r,i){(r=R(r)).shared=!1;var o=[ko(e,t,n,r,i)],a=o[0],s=r.widgetNode;return ji(e,(function(e){s&&(r.widgetNode=s.cloneNode(!0)),o.push(ko(e,st(e,t),st(e,n),r,i));for(var l=0;l<e.linked.length;++l)if(e.linked[l].isParent)return;a=W(o)})),new Co(o,a)}(e,t,n,r,i);if(e.cm&&!e.cm.curOp)return ei(e.cm,ko)(e,t,n,r,i);var o=new _o(e,i),a=tt(t,n);if(r&&R(r,o,!1),a>0||0==a&&!1!==o.clearWhenEmpty)return o;if(o.replacedWith&&(o.collapsed=!0,o.widgetNode=D("span",[o.replacedWith],"CodeMirror-widget"),r.handleMouseEvents||o.widgetNode.setAttribute("cm-ignore-events","true"),r.insertLeft&&(o.widgetNode.insertLeft=!0)),o.collapsed){if(Rt(e,t.line,t,n,o)||t.line!=n.line&&Rt(e,n.line,t,n,o))throw new Error("Inserting collapsed marker partially overlapping an existing one");Ot=!0}o.addToHistory&&Ui(e,{from:t,to:n,origin:"markText"},e.sel,NaN);var s,l=t.line,c=e.cm;if(e.iter(l,n.line+1,(function(e){c&&o.collapsed&&!c.options.lineWrapping&&Pt(e)==c.display.maxLine&&(s=!0),o.collapsed&&l!=t.line&&Ye(e,0),function(e,t){e.markedSpans=e.markedSpans?e.markedSpans.concat([t]):[t],t.marker.attachLine(e)}(e,new wt(o,l==t.line?t.ch:null,l==n.line?n.ch:null)),++l})),o.collapsed&&e.iter(t.line,n.line+1,(function(t){Bt(e,t)&&Ye(t,0)})),o.clearOnEnter&&fe(o,"beforeCursorEnter",(function(){return o.clear()})),o.readOnly&&(Et=!0,(e.history.done.length||e.history.undone.length)&&e.clearHistory()),o.collapsed&&(o.id=++xo,o.atomic=!0),c){if(s&&(c.curOp.updateMaxLine=!0),o.collapsed)fr(c,t.line,n.line+1);else if(o.className||o.startStyle||o.endStyle||o.css||o.attributes||o.title)for(var u=t.line;u<=n.line;u++)dr(c,u,"text");o.atomic&&no(c.doc),ln(c,"markerAdded",c,o)}return o}_o.prototype.clear=function(){if(!this.explicitlyCleared){var e=this.doc.cm,t=e&&!e.curOp;if(t&&Qr(e),ge(this,"clear")){var n=this.find();n&&ln(this,"clear",n.from,n.to)}for(var r=null,i=null,o=0;o<this.lines.length;++o){var a=this.lines[o],s=xt(a.markedSpans,this);e&&!this.collapsed?dr(e,Je(a),"text"):e&&(null!=s.to&&(i=Je(a)),null!=s.from&&(r=Je(a))),a.markedSpans=_t(a.markedSpans,s),null==s.from&&this.collapsed&&!Bt(this.doc,a)&&e&&Ye(a,rr(e.display))}if(e&&this.collapsed&&!e.options.lineWrapping)for(var l=0;l<this.lines.length;++l){var c=Pt(this.lines[l]),u=Gt(c);u>e.display.maxLineLength&&(e.display.maxLine=c,e.display.maxLineLength=u,e.display.maxLineChanged=!0)}null!=r&&e&&this.collapsed&&fr(e,r,i+1),this.lines.length=0,this.explicitlyCleared=!0,this.atomic&&this.doc.cantEdit&&(this.doc.cantEdit=!1,e&&no(e.doc)),e&&ln(e,"markerCleared",e,this,r,i),t&&Kr(e),this.parent&&this.parent.clear()}},_o.prototype.find=function(e,t){var n,r;null==e&&"bookmark"==this.type&&(e=1);for(var i=0;i<this.lines.length;++i){var o=this.lines[i],a=xt(o.markedSpans,this);if(null!=a.from&&(n=et(t?o:Je(o),a.from),-1==e))return n;if(null!=a.to&&(r=et(t?o:Je(o),a.to),1==e))return r}return n&&{from:n,to:r}},_o.prototype.changed=function(){var e=this,t=this.find(-1,!0),n=this,r=this.doc.cm;t&&r&&Zr(r,(function(){var i=t.line,o=Je(t.line),a=In(r,o);if(a&&(Pn(a),r.curOp.selectionChanged=r.curOp.forceUpdate=!0),r.curOp.updateMaxLine=!0,!Bt(n.doc,i)&&null!=n.height){var s=n.height;n.height=null;var l=En(n)-s;l&&Ye(i,i.height+l)}ln(r,"markerChanged",r,e)}))},_o.prototype.attachLine=function(e){if(!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;t.maybeHiddenMarkers&&-1!=U(t.maybeHiddenMarkers,this)||(t.maybeUnhiddenMarkers||(t.maybeUnhiddenMarkers=[])).push(this)}this.lines.push(e)},_o.prototype.detachLine=function(e){if(this.lines.splice(U(this.lines,e),1),!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;(t.maybeHiddenMarkers||(t.maybeHiddenMarkers=[])).push(this)}},ye(_o);var Co=function(e,t){this.markers=e,this.primary=t;for(var n=0;n<e.length;++n)e[n].parent=this};function So(e){return e.findMarks(et(e.first,0),e.clipPos(et(e.lastLine())),(function(e){return e.parent}))}function No(e){for(var t=function(t){var n=e[t],r=[n.primary.doc];ji(n.primary.doc,(function(e){return r.push(e)}));for(var i=0;i<n.markers.length;i++){var o=n.markers[i];-1==U(r,o.doc)&&(o.parent=null,n.markers.splice(i--,1))}},n=0;n<e.length;n++)t(n)}Co.prototype.clear=function(){if(!this.explicitlyCleared){this.explicitlyCleared=!0;for(var e=0;e<this.markers.length;++e)this.markers[e].clear();ln(this,"clear")}},Co.prototype.find=function(e,t){return this.primary.find(e,t)},ye(Co);var Do=0,Io=function(e,t,n,r,i){if(!(this instanceof Io))return new Io(e,t,n,r,i);null==n&&(n=0),Eo.call(this,[new To([new Qt("",null)])]),this.first=n,this.scrollTop=this.scrollLeft=0,this.cantEdit=!1,this.cleanGeneration=1,this.modeFrontier=this.highlightFrontier=n;var o=et(n,0);this.sel=_i(o),this.history=new Ri(null),this.id=++Do,this.modeOption=t,this.lineSep=r,this.direction="rtl"==i?"rtl":"ltr",this.extend=!1,"string"==typeof e&&(e=this.splitLines(e)),Li(this,{from:o,to:o,text:e}),Zi(this,_i(o),q)};Io.prototype=$(Eo.prototype,{constructor:Io,iter:function(e,t,n){n?this.iterN(e-this.first,t-e,n):this.iterN(this.first,this.first+this.size,e)},insert:function(e,t){for(var n=0,r=0;r<t.length;++r)n+=t[r].height;this.insertInner(e-this.first,t,n)},remove:function(e,t){this.removeInner(e-this.first,t)},getValue:function(e){var t=We(this,this.first,this.first+this.size);return!1===e?t:t.join(e||this.lineSeparator())},setValue:ni((function(e){var t=et(this.first,0),n=this.first+this.size-1;co(this,{from:t,to:et(n,Qe(this,n).text.length),text:this.splitLines(e),origin:"setValue",full:!0},!0),this.cm&&Ar(this.cm,0,0),Zi(this,_i(t),q)})),replaceRange:function(e,t,n,r){mo(this,e,t=st(this,t),n=n?st(this,n):t,r)},getRange:function(e,t,n){var r=Ke(this,st(this,e),st(this,t));return!1===n?r:r.join(n||this.lineSeparator())},getLine:function(e){var t=this.getLineHandle(e);return t&&t.text},getLineHandle:function(e){if(Xe(this,e))return Qe(this,e)},getLineNumber:function(e){return Je(e)},getLineHandleVisualStart:function(e){return"number"==typeof e&&(e=Qe(this,e)),Pt(e)},lineCount:function(){return this.size},firstLine:function(){return this.first},lastLine:function(){return this.first+this.size-1},clipPos:function(e){return st(this,e)},getCursor:function(e){var t=this.sel.primary();return null==e||"head"==e?t.head:"anchor"==e?t.anchor:"end"==e||"to"==e||!1===e?t.to():t.from()},listSelections:function(){return this.sel.ranges},somethingSelected:function(){return this.sel.somethingSelected()},setCursor:ni((function(e,t,n){$i(this,st(this,"number"==typeof e?et(e,t||0):e),null,n)})),setSelection:ni((function(e,t,n){$i(this,st(this,e),st(this,t||e),n)})),extendSelection:ni((function(e,t,n){Wi(this,st(this,e),t&&st(this,t),n)})),extendSelections:ni((function(e,t){Yi(this,lt(this,e),t)})),extendSelectionsBy:ni((function(e,t){Yi(this,lt(this,Y(this.sel.ranges,e)),t)})),setSelections:ni((function(e,t,n){if(e.length){for(var r=[],i=0;i<e.length;i++)r[i]=new wi(st(this,e[i].anchor),st(this,e[i].head));null==t&&(t=Math.min(e.length-1,this.sel.primIndex)),Zi(this,xi(this.cm,r,t),n)}})),addSelection:ni((function(e,t,n){var r=this.sel.ranges.slice(0);r.push(new wi(st(this,e),st(this,t||e))),Zi(this,xi(this.cm,r,r.length-1),n)})),getSelection:function(e){for(var t,n=this.sel.ranges,r=0;r<n.length;r++){var i=Ke(this,n[r].from(),n[r].to());t=t?t.concat(i):i}return!1===e?t:t.join(e||this.lineSeparator())},getSelections:function(e){for(var t=[],n=this.sel.ranges,r=0;r<n.length;r++){var i=Ke(this,n[r].from(),n[r].to());!1!==e&&(i=i.join(e||this.lineSeparator())),t[r]=i}return t},replaceSelection:function(e,t,n){for(var r=[],i=0;i<this.sel.ranges.length;i++)r[i]=e;this.replaceSelections(r,t,n||"+input")},replaceSelections:ni((function(e,t,n){for(var r=[],i=this.sel,o=0;o<i.ranges.length;o++){var a=i.ranges[o];r[o]={from:a.from(),to:a.to(),text:this.splitLines(e[o]),origin:n}}for(var s=t&&"end"!=t&&function(e,t,n){for(var r=[],i=et(e.first,0),o=i,a=0;a<t.length;a++){var s=t[a],l=Ni(s.from,i,o),c=Ni(ki(s),i,o);if(i=s.to,o=c,"around"==n){var u=e.sel.ranges[a],f=tt(u.head,u.anchor)<0;r[a]=new wi(f?c:l,f?l:c)}else r[a]=new wi(l,l)}return new Oi(r,e.sel.primIndex)}(this,r,t),l=r.length-1;l>=0;l--)co(this,r[l]);s?Xi(this,s):this.cm&&Ir(this.cm)})),undo:ni((function(){fo(this,"undo")})),redo:ni((function(){fo(this,"redo")})),undoSelection:ni((function(){fo(this,"undo",!0)})),redoSelection:ni((function(){fo(this,"redo",!0)})),setExtending:function(e){this.extend=e},getExtending:function(){return this.extend},historySize:function(){for(var e=this.history,t=0,n=0,r=0;r<e.done.length;r++)e.done[r].ranges||++t;for(var i=0;i<e.undone.length;i++)e.undone[i].ranges||++n;return{undo:t,redo:n}},clearHistory:function(){var e=this;this.history=new Ri(this.history.maxGeneration),ji(this,(function(t){return t.history=e.history}),!0)},markClean:function(){this.cleanGeneration=this.changeGeneration(!0)},changeGeneration:function(e){return e&&(this.history.lastOp=this.history.lastSelOp=this.history.lastOrigin=null),this.history.generation},isClean:function(e){return this.history.generation==(e||this.cleanGeneration)},getHistory:function(){return{done:Qi(this.history.done),undone:Qi(this.history.undone)}},setHistory:function(e){var t=this.history=new Ri(this.history.maxGeneration);t.done=Qi(e.done.slice(0),null,!0),t.undone=Qi(e.undone.slice(0),null,!0)},setGutterMarker:ni((function(e,t,n){return bo(this,e,"gutter",(function(e){var r=e.gutterMarkers||(e.gutterMarkers={});return r[t]=n,!n&&te(r)&&(e.gutterMarkers=null),!0}))})),clearGutter:ni((function(e){var t=this;this.iter((function(n){n.gutterMarkers&&n.gutterMarkers[e]&&bo(t,n,"gutter",(function(){return n.gutterMarkers[e]=null,te(n.gutterMarkers)&&(n.gutterMarkers=null),!0}))}))})),lineInfo:function(e){var t;if("number"==typeof e){if(!Xe(this,e))return null;if(t=e,!(e=Qe(this,e)))return null}else if(null==(t=Je(e)))return null;return{line:t,handle:e,text:e.text,gutterMarkers:e.gutterMarkers,textClass:e.textClass,bgClass:e.bgClass,wrapClass:e.wrapClass,widgets:e.widgets}},addLineClass:ni((function(e,t,n){return bo(this,e,"gutter"==t?"gutter":"class",(function(e){var r="text"==t?"textClass":"background"==t?"bgClass":"gutter"==t?"gutterClass":"wrapClass";if(e[r]){if(x(n).test(e[r]))return!1;e[r]+=" "+n}else e[r]=n;return!0}))})),removeLineClass:ni((function(e,t,n){return bo(this,e,"gutter"==t?"gutter":"class",(function(e){var r="text"==t?"textClass":"background"==t?"bgClass":"gutter"==t?"gutterClass":"wrapClass",i=e[r];if(!i)return!1;if(null==n)e[r]=null;else{var o=i.match(x(n));if(!o)return!1;var a=o.index+o[0].length;e[r]=i.slice(0,o.index)+(o.index&&a!=i.length?" ":"")+i.slice(a)||null}return!0}))})),addLineWidget:ni((function(e,t,n){return function(e,t,n,r){var i=new Oo(e,n,r),o=e.cm;return o&&i.noHScroll&&(o.display.alignWidgets=!0),bo(e,t,"widget",(function(t){var n=t.widgets||(t.widgets=[]);if(null==i.insertAt?n.push(i):n.splice(Math.min(n.length-1,Math.max(0,i.insertAt)),0,i),i.line=t,o&&!Bt(e,t)){var r=Ht(t)<e.scrollTop;Ye(t,t.height+En(i)),r&&Dr(o,i.height),o.curOp.forceUpdate=!0}return!0})),o&&ln(o,"lineWidgetAdded",o,i,"number"==typeof t?t:Je(t)),i}(this,e,t,n)})),removeLineWidget:function(e){e.clear()},markText:function(e,t,n){return ko(this,st(this,e),st(this,t),n,n&&n.type||"range")},setBookmark:function(e,t){var n={replacedWith:t&&(null==t.nodeType?t.widget:t),insertLeft:t&&t.insertLeft,clearWhenEmpty:!1,shared:t&&t.shared,handleMouseEvents:t&&t.handleMouseEvents};return ko(this,e=st(this,e),e,n,"bookmark")},findMarksAt:function(e){var t=[],n=Qe(this,(e=st(this,e)).line).markedSpans;if(n)for(var r=0;r<n.length;++r){var i=n[r];(null==i.from||i.from<=e.ch)&&(null==i.to||i.to>=e.ch)&&t.push(i.marker.parent||i.marker)}return t},findMarks:function(e,t,n){e=st(this,e),t=st(this,t);var r=[],i=e.line;return this.iter(e.line,t.line+1,(function(o){var a=o.markedSpans;if(a)for(var s=0;s<a.length;s++){var l=a[s];null!=l.to&&i==e.line&&e.ch>=l.to||null==l.from&&i!=e.line||null!=l.from&&i==t.line&&l.from>=t.ch||n&&!n(l.marker)||r.push(l.marker.parent||l.marker)}++i})),r},getAllMarks:function(){var e=[];return this.iter((function(t){var n=t.markedSpans;if(n)for(var r=0;r<n.length;++r)null!=n[r].from&&e.push(n[r].marker)})),e},posFromIndex:function(e){var t,n=this.first,r=this.lineSeparator().length;return this.iter((function(i){var o=i.text.length+r;if(o>e)return t=e,!0;e-=o,++n})),st(this,et(n,t))},indexFromPos:function(e){var t=(e=st(this,e)).ch;if(e.line<this.first||e.ch<0)return 0;var n=this.lineSeparator().length;return this.iter(this.first,e.line,(function(e){t+=e.text.length+n})),t},copy:function(e){var t=new Io(We(this,this.first,this.first+this.size),this.modeOption,this.first,this.lineSep,this.direction);return t.scrollTop=this.scrollTop,t.scrollLeft=this.scrollLeft,t.sel=this.sel,t.extend=!1,e&&(t.history.undoDepth=this.history.undoDepth,t.setHistory(this.getHistory())),t},linkedDoc:function(e){e||(e={});var t=this.first,n=this.first+this.size;null!=e.from&&e.from>t&&(t=e.from),null!=e.to&&e.to<n&&(n=e.to);var r=new Io(We(this,t,n),e.mode||this.modeOption,t,this.lineSep,this.direction);return e.sharedHist&&(r.history=this.history),(this.linked||(this.linked=[])).push({doc:r,sharedHist:e.sharedHist}),r.linked=[{doc:this,isParent:!0,sharedHist:e.sharedHist}],function(e,t){for(var n=0;n<t.length;n++){var r=t[n],i=r.find(),o=e.clipPos(i.from),a=e.clipPos(i.to);if(tt(o,a)){var s=ko(e,o,a,r.primary,r.primary.type);r.markers.push(s),s.parent=r}}}(r,So(this)),r},unlinkDoc:function(e){if(e instanceof Ca&&(e=e.doc),this.linked)for(var t=0;t<this.linked.length;++t)if(this.linked[t].doc==e){this.linked.splice(t,1),e.unlinkDoc(this),No(So(this));break}if(e.history==this.history){var n=[e.id];ji(e,(function(e){return n.push(e.id)}),!0),e.history=new Ri(null),e.history.done=Qi(this.history.done,n),e.history.undone=Qi(this.history.undone,n)}},iterLinkedDocs:function(e){ji(this,e)},getMode:function(){return this.mode},getEditor:function(){return this.cm},splitLines:function(e){return this.lineSep?e.split(this.lineSep):Ie(e)},lineSeparator:function(){return this.lineSep||"\n"},setDirection:ni((function(e){var t;"rtl"!=e&&(e="ltr"),e!=this.direction&&(this.direction=e,this.iter((function(e){return e.order=null})),this.cm&&Zr(t=this.cm,(function(){Mi(t),fr(t)})))}))}),Io.prototype.eachLine=Io.prototype.iter;var Ao=0;function Lo(e){var t=this;if(jo(t),!me(t,e)&&!On(t.display,e)){be(e),a&&(Ao=+new Date);var n=cr(t,e,!0),r=e.dataTransfer.files;if(n&&!t.isReadOnly())if(r&&r.length&&window.FileReader&&window.File)for(var 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et(r,i<0?n.text.length:0,i<0?"before":"after")}Ho.basic={Left:"goCharLeft",Right:"goCharRight",Up:"goLineUp",Down:"goLineDown",End:"goLineEnd",Home:"goLineStartSmart",PageUp:"goPageUp",PageDown:"goPageDown",Delete:"delCharAfter",Backspace:"delCharBefore","Shift-Backspace":"delCharBefore",Tab:"defaultTab","Shift-Tab":"indentAuto",Enter:"newlineAndIndent",Insert:"toggleOverwrite",Esc:"singleSelection"},Ho.pcDefault={"Ctrl-A":"selectAll","Ctrl-D":"deleteLine","Ctrl-Z":"undo","Shift-Ctrl-Z":"redo","Ctrl-Y":"redo","Ctrl-Home":"goDocStart","Ctrl-End":"goDocEnd","Ctrl-Up":"goLineUp","Ctrl-Down":"goLineDown","Ctrl-Left":"goGroupLeft","Ctrl-Right":"goGroupRight","Alt-Left":"goLineStart","Alt-Right":"goLineEnd","Ctrl-Backspace":"delGroupBefore","Ctrl-Delete":"delGroupAfter","Ctrl-S":"save","Ctrl-F":"find","Ctrl-G":"findNext","Shift-Ctrl-G":"findPrev","Shift-Ctrl-F":"replace","Shift-Ctrl-R":"replaceAll","Ctrl-[":"indentLess","Ctrl-]":"indentMore","Ctrl-U":"undoSelection","Shift-Ctrl-U":"redoSelection","Alt-U":"redoSelection",fallthrough:"basic"},Ho.emacsy={"Ctrl-F":"goCharRight","Ctrl-B":"goCharLeft","Ctrl-P":"goLineUp","Ctrl-N":"goLineDown","Alt-F":"goWordRight","Alt-B":"goWordLeft","Ctrl-A":"goLineStart","Ctrl-E":"goLineEnd","Ctrl-V":"goPageDown","Shift-Ctrl-V":"goPageUp","Ctrl-D":"delCharAfter","Ctrl-H":"delCharBefore","Alt-D":"delWordAfter","Alt-Backspace":"delWordBefore","Ctrl-K":"killLine","Ctrl-T":"transposeChars","Ctrl-O":"openLine"},Ho.macDefault={"Cmd-A":"selectAll","Cmd-D":"deleteLine","Cmd-Z":"undo","Shift-Cmd-Z":"redo","Cmd-Y":"redo","Cmd-Home":"goDocStart","Cmd-Up":"goDocStart","Cmd-End":"goDocEnd","Cmd-Down":"goDocEnd","Alt-Left":"goGroupLeft","Alt-Right":"goGroupRight","Cmd-Left":"goLineLeft","Cmd-Right":"goLineRight","Alt-Backspace":"delGroupBefore","Ctrl-Alt-Backspace":"delGroupAfter","Alt-Delete":"delGroupAfter","Cmd-S":"save","Cmd-F":"find","Cmd-G":"findNext","Shift-Cmd-G":"findPrev","Cmd-Alt-F":"replace","Shift-Cmd-Alt-F":"replaceAll","Cmd-[":"indentLess","Cmd-]":"indentMore","Cmd-Backspace":"delWrappedLineLeft","Cmd-Delete":"delWrappedLineRight","Cmd-U":"undoSelection","Shift-Cmd-U":"redoSelection","Ctrl-Up":"goDocStart","Ctrl-Down":"goDocEnd",fallthrough:["basic","emacsy"]},Ho.default=y?Ho.macDefault:Ho.pcDefault;var ta={selectAll:so,singleSelection:function(e){return e.setSelection(e.getCursor("anchor"),e.getCursor("head"),q)},killLine:function(e){return $o(e,(function(t){if(t.empty()){var n=Qe(e.doc,t.head.line).text.length;return t.head.ch==n&&t.head.line<e.lastLine()?{from:t.head,to:et(t.head.line+1,0)}:{from:t.head,to:et(t.head.line,n)}}return{from:t.from(),to:t.to()}}))},deleteLine:function(e){return $o(e,(function(t){return{from:et(t.from().line,0),to:st(e.doc,et(t.to().line+1,0))}}))},delLineLeft:function(e){return $o(e,(function(e){return{from:et(e.from().line,0),to:e.from()}}))},delWrappedLineLeft:function(e){return $o(e,(function(t){var n=e.charCoords(t.head,"div").top+5;return{from:e.coordsChar({left:0,top:n},"div"),to:t.from()}}))},delWrappedLineRight:function(e){return $o(e,(function(t){var n=e.charCoords(t.head,"div").top+5,r=e.coordsChar({left:e.display.lineDiv.offsetWidth+100,top:n},"div");return{from:t.from(),to:r}}))},undo:function(e){return e.undo()},redo:function(e){return e.redo()},undoSelection:function(e){return e.undoSelection()},redoSelection:function(e){return e.redoSelection()},goDocStart:function(e){return e.extendSelection(et(e.firstLine(),0))},goDocEnd:function(e){return e.extendSelection(et(e.lastLine()))},goLineStart:function(e){return e.extendSelectionsBy((function(t){return na(e,t.head.line)}),{origin:"+move",bias:1})},goLineStartSmart:function(e){return e.extendSelectionsBy((function(t){return ra(e,t.head)}),{origin:"+move",bias:1})},goLineEnd:function(e){return e.extendSelectionsBy((function(t){return function(e,t){var n=Qe(e.doc,t),r=function(e){for(var t;t=Ft(e);)e=t.find(1,!0).line;return e}(n);return r!=n&&(t=Je(r)),ea(!0,e,n,t,-1)}(e,t.head.line)}),{origin:"+move",bias:-1})},goLineRight:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5;return e.coordsChar({left:e.display.lineDiv.offsetWidth+100,top:n},"div")}),G)},goLineLeft:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5;return e.coordsChar({left:0,top:n},"div")}),G)},goLineLeftSmart:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5,r=e.coordsChar({left:0,top:n},"div");return r.ch<e.getLine(r.line).search(/\S/)?ra(e,t.head):r}),G)},goLineUp:function(e){return e.moveV(-1,"line")},goLineDown:function(e){return e.moveV(1,"line")},goPageUp:function(e){return e.moveV(-1,"page")},goPageDown:function(e){return e.moveV(1,"page")},goCharLeft:function(e){return e.moveH(-1,"char")},goCharRight:function(e){return e.moveH(1,"char")},goColumnLeft:function(e){return e.moveH(-1,"column")},goColumnRight:function(e){return e.moveH(1,"column")},goWordLeft:function(e){return e.moveH(-1,"word")},goGroupRight:function(e){return e.moveH(1,"group")},goGroupLeft:function(e){return e.moveH(-1,"group")},goWordRight:function(e){return e.moveH(1,"word")},delCharBefore:function(e){return e.deleteH(-1,"char")},delCharAfter:function(e){return e.deleteH(1,"char")},delWordBefore:function(e){return e.deleteH(-1,"word")},delWordAfter:function(e){return e.deleteH(1,"word")},delGroupBefore:function(e){return e.deleteH(-1,"group")},delGroupAfter:function(e){return e.deleteH(1,"group")},indentAuto:function(e){return e.indentSelection("smart")},indentMore:function(e){return e.indentSelection("add")},indentLess:function(e){return e.indentSelection("subtract")},insertTab:function(e){return e.replaceSelection("\t")},insertSoftTab:function(e){for(var t=[],n=e.listSelections(),r=e.options.tabSize,i=0;i<n.length;i++){var o=n[i].from(),a=P(e.getLine(o.line),o.ch,r);t.push(K(r-a%r))}e.replaceSelections(t)},defaultTab:function(e){e.somethingSelected()?e.indentSelection("add"):e.execCommand("insertTab")},transposeChars:function(e){return Zr(e,(function(){for(var t=e.listSelections(),n=[],r=0;r<t.length;r++)if(t[r].empty()){var i=t[r].head,o=Qe(e.doc,i.line).text;if(o)if(i.ch==o.length&&(i=new et(i.line,i.ch-1)),i.ch>0)i=new 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fa(e){16==e.keyCode&&(this.doc.sel.shift=!1),me(this,e)}function da(e){var t=this;if(!(e.target&&e.target!=t.display.input.getField()||On(t.display,e)||me(t,e)||e.ctrlKey&&!e.altKey||y&&e.metaKey)){var n=e.keyCode,r=e.charCode;if(f&&n==ca)return ca=null,void be(e);if(!f||e.which&&!(e.which<10)||!la(t,e)){var i=String.fromCharCode(null==r?n:r);"\b"!=i&&(function(e,t,n){return aa(e,"'"+n+"'",t,(function(t){return ia(e,t,!0)}))}(t,e,i)||t.display.input.onKeyPress(e))}}}var pa,ha,ma=function(e,t,n){this.time=e,this.pos=t,this.button=n};function va(e){var t=this,n=t.display;if(!(me(t,e)||n.activeTouch&&n.input.supportsTouch()))if(n.input.ensurePolled(),n.shift=e.shiftKey,On(n,e))l||(n.scroller.draggable=!1,setTimeout((function(){return n.scroller.draggable=!0}),100));else if(!ba(t,e)){var r=cr(t,e),i=xe(e),o=r?function(e,t){var n=+new Date;return ha&&ha.compare(n,e,t)?(pa=ha=null,"triple"):pa&&pa.compare(n,e,t)?(ha=new ma(n,e,t),pa=null,"double"):(pa=new 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f=1==a.level==r<0,d=l(n,f?1:-1);if(null!=d&&(f?d<=a.to&&d<=u.end:d>=a.from&&d>=u.begin)){var p=f?"before":"after";return new et(n.line,d,p)}}var h=function(e,t,r){for(var o=function(e,t){return t?new et(n.line,l(e,1),"before"):new et(n.line,e,"after")};e>=0&&e<i.length;e+=t){var a=i[e],s=t>0==(1!=a.level),c=s?r.begin:l(r.end,-1);if(a.from<=c&&c<a.to)return o(c,s);if(c=s?a.from:l(a.to,-1),r.begin<=c&&c<r.end)return o(c,s)}},m=h(o+r,r,u);if(m)return m;var v=r>0?u.end:l(u.begin,-1);return null==v||r>0&&v==t.text.length||!(m=h(r>0?0:i.length-1,r,c(v)))?null:m}(e.cm,s,t,n):Zo(s,t,n))){if(r||(a=t.line+l)<e.first||a>=e.first+e.size||(t=new et(a,t.ch,t.sticky),!(s=Qe(e,a))))return!1;t=ea(i,e.cm,s,t.line,l)}else t=o;return!0}if("char"==r)c();else if("column"==r)c(!0);else if("word"==r||"group"==r)for(var u=null,f="group"==r,d=e.cm&&e.cm.getHelper(t,"wordChars"),p=!0;!(n<0)||c(!p);p=!1){var h=s.text.charAt(t.ch)||"\n",m=ee(h,d)?"w":f&&"\n"==h?"n":!f||/\s/.test(h)?null:"p";if(!f||p||m||(m="s"),u&&u!=m){n<0&&(n=1,c(),t.sticky="after");break}if(m&&(u=m),n>0&&!c(!p))break}var v=oo(e,t,o,a,!0);return nt(o,v)&&(v.hitSide=!0),v}function Va(e,t,n,r){var i,o,a=e.doc,s=t.left;if("page"==r){var l=Math.min(e.display.wrapper.clientHeight,window.innerHeight||document.documentElement.clientHeight),c=Math.max(l-.5*rr(e.display),3);i=(n>0?t.bottom:t.top)+n*c}else"line"==r&&(i=n>0?t.bottom+3:t.top-3);for(;(o=Jn(e,s,i)).outside;){if(n<0?i<=0:i>=a.height){o.hitSide=!0;break}i+=5*n}return o}var Ua=function(e){this.cm=e,this.lastAnchorNode=this.lastAnchorOffset=this.lastFocusNode=this.lastFocusOffset=null,this.polling=new V,this.composing=null,this.gracePeriod=!1,this.readDOMTimeout=null};function Ba(e,t){var n=In(e,t.line);if(!n||n.hidden)return null;var r=Qe(e.doc,t.line),i=Nn(n,r,t.line),o=ce(r,e.doc.direction),a="left";o&&(a=se(o,t.ch)%2?"right":"left");var s=Mn(i.map,t.ch,a);return s.offset="right"==s.collapse?s.end:s.start,s}function qa(e,t){return t&&(e.bad=!0),e}function Ha(e,t,n){var r;if(t==e.display.lineDiv){if(!(r=e.display.lineDiv.childNodes[n]))return qa(e.clipPos(et(e.display.viewTo-1)),!0);t=null,n=0}else for(r=t;;r=r.parentNode){if(!r||r==e.display.lineDiv)return null;if(r.parentNode&&r.parentNode==e.display.lineDiv)break}for(var i=0;i<e.display.view.length;i++){var o=e.display.view[i];if(o.node==r)return Ga(o,t,n)}}function Ga(e,t,n){var r=e.text.firstChild,i=!1;if(!t||!I(r,t))return qa(et(Je(e.line),0),!0);if(t==r&&(i=!0,t=r.childNodes[n],n=0,!t)){var o=e.rest?W(e.rest):e.line;return qa(et(Je(o),o.text.length),i)}var a=3==t.nodeType?t:null,s=t;for(a||1!=t.childNodes.length||3!=t.firstChild.nodeType||(a=t.firstChild,n&&(n=a.nodeValue.length));s.parentNode!=r;)s=s.parentNode;var l=e.measure,c=l.maps;function u(t,n,r){for(var i=-1;i<(c?c.length:0);i++)for(var o=i<0?l.map:c[i],a=0;a<o.length;a+=3){var s=o[a+2];if(s==t||s==n){var u=Je(i<0?e.line:e.rest[i]),f=o[a]+r;return(r<0||s!=t)&&(f=o[a+(r?1:0)]),et(u,f)}}}var f=u(a,s,n);if(f)return qa(f,i);for(var d=s.nextSibling,p=a?a.nodeValue.length-n:0;d;d=d.nextSibling){if(f=u(d,d.firstChild,0))return qa(et(f.line,f.ch-p),i);p+=d.textContent.length}for(var h=s.previousSibling,m=n;h;h=h.previousSibling){if(f=u(h,h.firstChild,-1))return qa(et(f.line,f.ch+m),i);m+=h.textContent.length}}Ua.prototype.init=function(e){var t=this,n=this,r=n.cm,i=n.div=e.lineDiv;function o(e){for(var t=e.target;t;t=t.parentNode){if(t==i)return!0;if(/\bCodeMirror-(?:line)?widget\b/.test(t.className))break}return!1}function a(e){if(o(e)&&!me(r,e)){if(r.somethingSelected())Ia({lineWise:!1,text:r.getSelections()}),"cut"==e.type&&r.replaceSelection("",null,"cut");else{if(!r.options.lineWiseCopyCut)return;var t=Fa(r);Ia({lineWise:!0,text:t.text}),"cut"==e.type&&r.operation((function(){r.setSelections(t.ranges,0,q),r.replaceSelection("",null,"cut")}))}if(e.clipboardData){e.clipboardData.clearData();var a=Da.text.join("\n");if(e.clipboardData.setData("Text",a),e.clipboardData.getData("Text")==a)return void e.preventDefault()}var s=Ra(),l=s.firstChild;r.display.lineSpace.insertBefore(s,r.display.lineSpace.firstChild),l.value=Da.text.join("\n");var c=document.activeElement;F(l),setTimeout((function(){r.display.lineSpace.removeChild(s),c.focus(),c==i&&n.showPrimarySelection()}),50)}}Ma(i,r.options.spellcheck,r.options.autocorrect,r.options.autocapitalize),fe(i,"paste",(function(e){!o(e)||me(r,e)||La(e,r)||s<=11&&setTimeout(ei(r,(function(){return t.updateFromDOM()})),20)})),fe(i,"compositionstart",(function(e){t.composing={data:e.data,done:!1}})),fe(i,"compositionupdate",(function(e){t.composing||(t.composing={data:e.data,done:!1})})),fe(i,"compositionend",(function(e){t.composing&&(e.data!=t.composing.data&&t.readFromDOMSoon(),t.composing.done=!0)})),fe(i,"touchstart",(function(){return n.forceCompositionEnd()})),fe(i,"input",(function(){t.composing||t.readFromDOMSoon()})),fe(i,"copy",a),fe(i,"cut",a)},Ua.prototype.screenReaderLabelChanged=function(e){e?this.div.setAttribute("aria-label",e):this.div.removeAttribute("aria-label")},Ua.prototype.prepareSelection=function(){var e=gr(this.cm,!1);return e.focus=document.activeElement==this.div,e},Ua.prototype.showSelection=function(e,t){e&&this.cm.display.view.length&&((e.focus||t)&&this.showPrimarySelection(),this.showMultipleSelections(e))},Ua.prototype.getSelection=function(){return this.cm.display.wrapper.ownerDocument.getSelection()},Ua.prototype.showPrimarySelection=function(){var e=this.getSelection(),t=this.cm,r=t.doc.sel.primary(),i=r.from(),o=r.to();if(t.display.viewTo==t.display.viewFrom||i.line>=t.display.viewTo||o.line<t.display.viewFrom)e.removeAllRanges();else{var a=Ha(t,e.anchorNode,e.anchorOffset),s=Ha(t,e.focusNode,e.focusOffset);if(!a||a.bad||!s||s.bad||0!=tt(ot(a,s),i)||0!=tt(it(a,s),o)){var l=t.display.view,c=i.line>=t.display.viewFrom&&Ba(t,i)||{node:l[0].measure.map[2],offset:0},u=o.line<t.display.viewTo&&Ba(t,o);if(!u){var f=l[l.length-1].measure,d=f.maps?f.maps[f.maps.length-1]:f.map;u={node:d[d.length-1],offset:d[d.length-2]-d[d.length-3]}}if(c&&u){var p,h=e.rangeCount&&e.getRangeAt(0);try{p=_(c.node,c.offset,u.offset,u.node)}catch(e){}p&&(!n&&t.state.focused?(e.collapse(c.node,c.offset),p.collapsed||(e.removeAllRanges(),e.addRange(p))):(e.removeAllRanges(),e.addRange(p)),h&&null==e.anchorNode?e.addRange(h):n&&this.startGracePeriod()),this.rememberSelection()}else e.removeAllRanges()}}},Ua.prototype.startGracePeriod=function(){var e=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout((function(){e.gracePeriod=!1,e.selectionChanged()&&e.cm.operation((function(){return e.cm.curOp.selectionChanged=!0}))}),20)},Ua.prototype.showMultipleSelections=function(e){S(this.cm.display.cursorDiv,e.cursors),S(this.cm.display.selectionDiv,e.selection)},Ua.prototype.rememberSelection=function(){var e=this.getSelection();this.lastAnchorNode=e.anchorNode,this.lastAnchorOffset=e.anchorOffset,this.lastFocusNode=e.focusNode,this.lastFocusOffset=e.focusOffset},Ua.prototype.selectionInEditor=function(){var e=this.getSelection();if(!e.rangeCount)return!1;var t=e.getRangeAt(0).commonAncestorContainer;return I(this.div,t)},Ua.prototype.focus=function(){"nocursor"!=this.cm.options.readOnly&&(this.selectionInEditor()&&document.activeElement==this.div||this.showSelection(this.prepareSelection(),!0),this.div.focus())},Ua.prototype.blur=function(){this.div.blur()},Ua.prototype.getField=function(){return this.div},Ua.prototype.supportsTouch=function(){return!0},Ua.prototype.receivedFocus=function(){var e=this;this.selectionInEditor()?this.pollSelection():Zr(this.cm,(function(){return e.cm.curOp.selectionChanged=!0})),this.polling.set(this.cm.options.pollInterval,(function t(){e.cm.state.focused&&(e.pollSelection(),e.polling.set(e.cm.options.pollInterval,t))}))},Ua.prototype.selectionChanged=function(){var e=this.getSelection();return e.anchorNode!=this.lastAnchorNode||e.anchorOffset!=this.lastAnchorOffset||e.focusNode!=this.lastFocusNode||e.focusOffset!=this.lastFocusOffset},Ua.prototype.pollSelection=function(){if(null==this.readDOMTimeout&&!this.gracePeriod&&this.selectionChanged()){var e=this.getSelection(),t=this.cm;if(v&&u&&this.cm.display.gutterSpecs.length&&function(e){for(var t=e;t;t=t.parentNode)if(/CodeMirror-gutter-wrapper/.test(t.className))return!0;return!1}(e.anchorNode))return this.cm.triggerOnKeyDown({type:"keydown",keyCode:8,preventDefault:Math.abs}),this.blur(),void this.focus();if(!this.composing){this.rememberSelection();var n=Ha(t,e.anchorNode,e.anchorOffset),r=Ha(t,e.focusNode,e.focusOffset);n&&r&&Zr(t,(function(){Zi(t.doc,_i(n,r),q),(n.bad||r.bad)&&(t.curOp.selectionChanged=!0)}))}}},Ua.prototype.pollContent=function(){null!=this.readDOMTimeout&&(clearTimeout(this.readDOMTimeout),this.readDOMTimeout=null);var e,t,n,r=this.cm,i=r.display,o=r.doc.sel.primary(),a=o.from(),s=o.to();if(0==a.ch&&a.line>r.firstLine()&&(a=et(a.line-1,Qe(r.doc,a.line-1).length)),s.ch==Qe(r.doc,s.line).text.length&&s.line<r.lastLine()&&(s=et(s.line+1,0)),a.line<i.viewFrom||s.line>i.viewTo-1)return!1;a.line==i.viewFrom||0==(e=ur(r,a.line))?(t=Je(i.view[0].line),n=i.view[0].node):(t=Je(i.view[e].line),n=i.view[e-1].node.nextSibling);var l,c,u=ur(r,s.line);if(u==i.view.length-1?(l=i.viewTo-1,c=i.lineDiv.lastChild):(l=Je(i.view[u+1].line)-1,c=i.view[u+1].node.previousSibling),!n)return!1;for(var f=r.doc.splitLines(function(e,t,n,r,i){var o="",a=!1,s=e.doc.lineSeparator(),l=!1;function c(){a&&(o+=s,l&&(o+=s),a=l=!1)}function u(e){e&&(c(),o+=e)}function f(t){if(1==t.nodeType){var n=t.getAttribute("cm-text");if(n)return void u(n);var o,d=t.getAttribute("cm-marker");if(d){var p=e.findMarks(et(r,0),et(i+1,0),(v=+d,function(e){return e.id==v}));return void(p.length&&(o=p[0].find(0))&&u(Ke(e.doc,o.from,o.to).join(s)))}if("false"==t.getAttribute("contenteditable"))return;var h=/^(pre|div|p|li|table|br)$/i.test(t.nodeName);if(!/^br$/i.test(t.nodeName)&&0==t.textContent.length)return;h&&c();for(var m=0;m<t.childNodes.length;m++)f(t.childNodes[m]);/^(pre|p)$/i.test(t.nodeName)&&(l=!0),h&&(a=!0)}else 3==t.nodeType&&u(t.nodeValue.replace(/\u200b/g,"").replace(/\u00a0/g," "));var v}for(;f(t),t!=n;)t=t.nextSibling,l=!1;return o}(r,n,c,t,l)),d=Ke(r.doc,et(t,0),et(l,Qe(r.doc,l).text.length));f.length>1&&d.length>1;)if(W(f)==W(d))f.pop(),d.pop(),l--;else{if(f[0]!=d[0])break;f.shift(),d.shift(),t++}for(var p=0,h=0,m=f[0],v=d[0],g=Math.min(m.length,v.length);p<g&&m.charCodeAt(p)==v.charCodeAt(p);)++p;for(var y=W(f),b=W(d),T=Math.min(y.length-(1==f.length?p:0),b.length-(1==d.length?p:0));h<T&&y.charCodeAt(y.length-h-1)==b.charCodeAt(b.length-h-1);)++h;if(1==f.length&&1==d.length&&t==a.line)for(;p&&p>a.ch&&y.charCodeAt(y.length-h-1)==b.charCodeAt(b.length-h-1);)p--,h++;f[f.length-1]=y.slice(0,y.length-h).replace(/^\u200b+/,""),f[0]=f[0].slice(p).replace(/\u200b+$/,"");var E=et(t,p),O=et(l,d.length?W(d).length-h:0);return f.length>1||f[0]||tt(E,O)?(mo(r.doc,f,E,O,"+input"),!0):void 0},Ua.prototype.ensurePolled=function(){this.forceCompositionEnd()},Ua.prototype.reset=function(){this.forceCompositionEnd()},Ua.prototype.forceCompositionEnd=function(){this.composing&&(clearTimeout(this.readDOMTimeout),this.composing=null,this.updateFromDOM(),this.div.blur(),this.div.focus())},Ua.prototype.readFromDOMSoon=function(){var e=this;null==this.readDOMTimeout&&(this.readDOMTimeout=setTimeout((function(){if(e.readDOMTimeout=null,e.composing){if(!e.composing.done)return;e.composing=null}e.updateFromDOM()}),80))},Ua.prototype.updateFromDOM=function(){var e=this;!this.cm.isReadOnly()&&this.pollContent()||Zr(this.cm,(function(){return fr(e.cm)}))},Ua.prototype.setUneditable=function(e){e.contentEditable="false"},Ua.prototype.onKeyPress=function(e){0==e.charCode||this.composing||(e.preventDefault(),this.cm.isReadOnly()||ei(this.cm,Aa)(this.cm,String.fromCharCode(null==e.charCode?e.keyCode:e.charCode),0))},Ua.prototype.readOnlyChanged=function(e){this.div.contentEditable=String("nocursor"!=e)},Ua.prototype.onContextMenu=function(){},Ua.prototype.resetPosition=function(){},Ua.prototype.needsContentAttribute=!0;var za=function(e){this.cm=e,this.prevInput="",this.pollingFast=!1,this.polling=new V,this.hasSelection=!1,this.composing=null};za.prototype.init=function(e){var t=this,n=this,r=this.cm;this.createField(e);var i=this.textarea;function o(e){if(!me(r,e)){if(r.somethingSelected())Ia({lineWise:!1,text:r.getSelections()});else{if(!r.options.lineWiseCopyCut)return;var t=Fa(r);Ia({lineWise:!0,text:t.text}),"cut"==e.type?r.setSelections(t.ranges,null,q):(n.prevInput="",i.value=t.text.join("\n"),F(i))}"cut"==e.type&&(r.state.cutIncoming=+new Date)}}e.wrapper.insertBefore(this.wrapper,e.wrapper.firstChild),m&&(i.style.width="0px"),fe(i,"input",(function(){a&&s>=9&&t.hasSelection&&(t.hasSelection=null),n.poll()})),fe(i,"paste",(function(e){me(r,e)||La(e,r)||(r.state.pasteIncoming=+new Date,n.fastPoll())})),fe(i,"cut",o),fe(i,"copy",o),fe(e.scroller,"paste",(function(t){if(!On(e,t)&&!me(r,t)){if(!i.dispatchEvent)return r.state.pasteIncoming=+new Date,void n.focus();var o=new Event("paste");o.clipboardData=t.clipboardData,i.dispatchEvent(o)}})),fe(e.lineSpace,"selectstart",(function(t){On(e,t)||be(t)})),fe(i,"compositionstart",(function(){var e=r.getCursor("from");n.composing&&n.composing.range.clear(),n.composing={start:e,range:r.markText(e,r.getCursor("to"),{className:"CodeMirror-composing"})}})),fe(i,"compositionend",(function(){n.composing&&(n.poll(),n.composing.range.clear(),n.composing=null)}))},za.prototype.createField=function(e){this.wrapper=Ra(),this.textarea=this.wrapper.firstChild},za.prototype.screenReaderLabelChanged=function(e){e?this.textarea.setAttribute("aria-label",e):this.textarea.removeAttribute("aria-label")},za.prototype.prepareSelection=function(){var e=this.cm,t=e.display,n=e.doc,r=gr(e);if(e.options.moveInputWithCursor){var i=Kn(e,n.sel.primary().head,"div"),o=t.wrapper.getBoundingClientRect(),a=t.lineDiv.getBoundingClientRect();r.teTop=Math.max(0,Math.min(t.wrapper.clientHeight-10,i.top+a.top-o.top)),r.teLeft=Math.max(0,Math.min(t.wrapper.clientWidth-10,i.left+a.left-o.left))}return r},za.prototype.showSelection=function(e){var t=this.cm.display;S(t.cursorDiv,e.cursors),S(t.selectionDiv,e.selection),null!=e.teTop&&(this.wrapper.style.top=e.teTop+"px",this.wrapper.style.left=e.teLeft+"px")},za.prototype.reset=function(e){if(!this.contextMenuPending&&!this.composing){var t=this.cm;if(t.somethingSelected()){this.prevInput="";var n=t.getSelection();this.textarea.value=n,t.state.focused&&F(this.textarea),a&&s>=9&&(this.hasSelection=n)}else e||(this.prevInput=this.textarea.value="",a&&s>=9&&(this.hasSelection=null))}},za.prototype.getField=function(){return this.textarea},za.prototype.supportsTouch=function(){return!1},za.prototype.focus=function(){if("nocursor"!=this.cm.options.readOnly&&(!g||A()!=this.textarea))try{this.textarea.focus()}catch(e){}},za.prototype.blur=function(){this.textarea.blur()},za.prototype.resetPosition=function(){this.wrapper.style.top=this.wrapper.style.left=0},za.prototype.receivedFocus=function(){this.slowPoll()},za.prototype.slowPoll=function(){var e=this;this.pollingFast||this.polling.set(this.cm.options.pollInterval,(function(){e.poll(),e.cm.state.focused&&e.slowPoll()}))},za.prototype.fastPoll=function(){var e=!1,t=this;t.pollingFast=!0,t.polling.set(20,(function n(){t.poll()||e?(t.pollingFast=!1,t.slowPoll()):(e=!0,t.polling.set(60,n))}))},za.prototype.poll=function(){var e=this,t=this.cm,n=this.textarea,r=this.prevInput;if(this.contextMenuPending||!t.state.focused||Ae(n)&&!r&&!this.composing||t.isReadOnly()||t.options.disableInput||t.state.keySeq)return!1;var i=n.value;if(i==r&&!t.somethingSelected())return!1;if(a&&s>=9&&this.hasSelection===i||y&&/[\uf700-\uf7ff]/.test(i))return t.display.input.reset(),!1;if(t.doc.sel==t.display.selForContextMenu){var o=i.charCodeAt(0);if(8203!=o||r||(r="​"),8666==o)return this.reset(),this.cm.execCommand("undo")}for(var l=0,c=Math.min(r.length,i.length);l<c&&r.charCodeAt(l)==i.charCodeAt(l);)++l;return Zr(t,(function(){Aa(t,i.slice(l),r.length-l,null,e.composing?"*compose":null),i.length>1e3||i.indexOf("\n")>-1?n.value=e.prevInput="":e.prevInput=i,e.composing&&(e.composing.range.clear(),e.composing.range=t.markText(e.composing.start,t.getCursor("to"),{className:"CodeMirror-composing"}))})),!0},za.prototype.ensurePolled=function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},za.prototype.onKeyPress=function(){a&&s>=9&&(this.hasSelection=null),this.fastPoll()},za.prototype.onContextMenu=function(e){var t=this,n=t.cm,r=n.display,i=t.textarea;t.contextMenuPending&&t.contextMenuPending();var o=cr(n,e),c=r.scroller.scrollTop;if(o&&!f){n.options.resetSelectionOnContextMenu&&-1==n.doc.sel.contains(o)&&ei(n,Zi)(n.doc,_i(o),q);var u,d=i.style.cssText,p=t.wrapper.style.cssText,h=t.wrapper.offsetParent.getBoundingClientRect();if(t.wrapper.style.cssText="position: static",i.style.cssText="position: absolute; width: 30px; height: 30px;\n      top: "+(e.clientY-h.top-5)+"px; left: "+(e.clientX-h.left-5)+"px;\n      z-index: 1000; background: "+(a?"rgba(255, 255, 255, .05)":"transparent")+";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",l&&(u=window.scrollY),r.input.focus(),l&&window.scrollTo(null,u),r.input.reset(),n.somethingSelected()||(i.value=t.prevInput=" "),t.contextMenuPending=g,r.selForContextMenu=n.doc.sel,clearTimeout(r.detectingSelectAll),a&&s>=9&&v(),w){Oe(e);var m=function(){pe(window,"mouseup",m),setTimeout(g,20)};fe(window,"mouseup",m)}else setTimeout(g,50)}function v(){if(null!=i.selectionStart){var e=n.somethingSelected(),o="​"+(e?i.value:"");i.value="⇚",i.value=o,t.prevInput=e?"":"​",i.selectionStart=1,i.selectionEnd=o.length,r.selForContextMenu=n.doc.sel}}function g(){if(t.contextMenuPending==g&&(t.contextMenuPending=!1,t.wrapper.style.cssText=p,i.style.cssText=d,a&&s<9&&r.scrollbars.setScrollTop(r.scroller.scrollTop=c),null!=i.selectionStart)){(!a||a&&s<9)&&v();var e=0,o=function(){r.selForContextMenu==n.doc.sel&&0==i.selectionStart&&i.selectionEnd>0&&"​"==t.prevInput?ei(n,so)(n):e++<10?r.detectingSelectAll=setTimeout(o,500):(r.selForContextMenu=null,r.input.reset())};r.detectingSelectAll=setTimeout(o,200)}}},za.prototype.readOnlyChanged=function(e){e||this.reset(),this.textarea.disabled="nocursor"==e},za.prototype.setUneditable=function(){},za.prototype.needsContentAttribute=!1,function(e){var t=e.optionHandlers;function n(n,r,i,o){e.defaults[n]=r,i&&(t[n]=o?function(e,t,n){n!=Oa&&i(e,t,n)}:i)}e.defineOption=n,e.Init=Oa,n("value","",(function(e,t){return e.setValue(t)}),!0),n("mode",null,(function(e,t){e.doc.modeOption=t,Di(e)}),!0),n("indentUnit",2,Di,!0),n("indentWithTabs",!1),n("smartIndent",!0),n("tabSize",4,(function(e){Ii(e),Un(e),fr(e)}),!0),n("lineSeparator",null,(function(e,t){if(e.doc.lineSep=t,t){var n=[],r=e.doc.first;e.doc.iter((function(e){for(var i=0;;){var 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this.parseOperationDefinition();case"fragment":return this.parseFragmentDefinition();case"schema":case"scalar":case"type":case"interface":case"union":case"enum":case"input":case"directive":return this.parseTypeSystemDefinition();case"extend":return this.parseTypeSystemExtension()}else{if(this.peek(u.BRACE_L))return this.parseOperationDefinition();if(this.peekDescription())return this.parseTypeSystemDefinition()}throw this.unexpected()},t.parseOperationDefinition=function(){var e=this._lexer.token;if(this.peek(u.BRACE_L))return{kind:l.a.OPERATION_DEFINITION,operation:"query",name:void 0,variableDefinitions:[],directives:[],selectionSet:this.parseSelectionSet(),loc:this.loc(e)};var t,n=this.parseOperationType();return this.peek(u.NAME)&&(t=this.parseName()),{kind:l.a.OPERATION_DEFINITION,operation:n,name:t,variableDefinitions:this.parseVariableDefinitions(),directives:this.parseDirectives(!1),selectionSet:this.parseSelectionSet(),loc:this.loc(e)}},t.parseOperationType=function(){var e=this.expectToken(u.NAME);switch(e.value){case"query":return"query";case"mutation":return"mutation";case"subscription":return"subscription"}throw this.unexpected(e)},t.parseVariableDefinitions=function(){return this.optionalMany(u.PAREN_L,this.parseVariableDefinition,u.PAREN_R)},t.parseVariableDefinition=function(){var e=this._lexer.token;return{kind:l.a.VARIABLE_DEFINITION,variable:this.parseVariable(),type:(this.expectToken(u.COLON),this.parseTypeReference()),defaultValue:this.expectOptionalToken(u.EQUALS)?this.parseValueLiteral(!0):void 0,directives:this.parseDirectives(!0),loc:this.loc(e)}},t.parseVariable=function(){var e=this._lexer.token;return this.expectToken(u.DOLLAR),{kind:l.a.VARIABLE,name:this.parseName(),loc:this.loc(e)}},t.parseSelectionSet=function(){var e=this._lexer.token;return{kind:l.a.SELECTION_SET,selections:this.many(u.BRACE_L,this.parseSelection,u.BRACE_R),loc:this.loc(e)}},t.parseSelection=function(){return this.peek(u.SPREAD)?this.parseFragment():this.parseField()},t.parseField=function(){var e,t,n=this._lexer.token,r=this.parseName();return this.expectOptionalToken(u.COLON)?(e=r,t=this.parseName()):t=r,{kind:l.a.FIELD,alias:e,name:t,arguments:this.parseArguments(!1),directives:this.parseDirectives(!1),selectionSet:this.peek(u.BRACE_L)?this.parseSelectionSet():void 0,loc:this.loc(n)}},t.parseArguments=function(e){var t=e?this.parseConstArgument:this.parseArgument;return this.optionalMany(u.PAREN_L,t,u.PAREN_R)},t.parseArgument=function(){var e=this._lexer.token,t=this.parseName();return this.expectToken(u.COLON),{kind:l.a.ARGUMENT,name:t,value:this.parseValueLiteral(!1),loc:this.loc(e)}},t.parseConstArgument=function(){var e=this._lexer.token;return{kind:l.a.ARGUMENT,name:this.parseName(),value:(this.expectToken(u.COLON),this.parseValueLiteral(!0)),loc:this.loc(e)}},t.parseFragment=function(){var e=this._lexer.token;this.expectToken(u.SPREAD);var t=this.expectOptionalKeyword("on");return!t&&this.peek(u.NAME)?{kind:l.a.FRAGMENT_SPREAD,name:this.parseFragmentName(),directives:this.parseDirectives(!1),loc:this.loc(e)}:{kind:l.a.INLINE_FRAGMENT,typeCondition:t?this.parseNamedType():void 0,directives:this.parseDirectives(!1),selectionSet:this.parseSelectionSet(),loc:this.loc(e)}},t.parseFragmentDefinition=function(){var e,t=this._lexer.token;return this.expectKeyword("fragment"),!0===(null===(e=this._options)||void 0===e?void 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this.expectToken(u.COLON),{kind:l.a.OBJECT_FIELD,name:n,value:this.parseValueLiteral(e),loc:this.loc(t)}},t.parseDirectives=function(e){for(var t=[];this.peek(u.AT);)t.push(this.parseDirective(e));return t},t.parseDirective=function(e){var t=this._lexer.token;return this.expectToken(u.AT),{kind:l.a.DIRECTIVE,name:this.parseName(),arguments:this.parseArguments(e),loc:this.loc(t)}},t.parseTypeReference=function(){var e,t=this._lexer.token;return this.expectOptionalToken(u.BRACKET_L)?(e=this.parseTypeReference(),this.expectToken(u.BRACKET_R),e={kind:l.a.LIST_TYPE,type:e,loc:this.loc(t)}):e=this.parseNamedType(),this.expectOptionalToken(u.BANG)?{kind:l.a.NON_NULL_TYPE,type:e,loc:this.loc(t)}:e},t.parseNamedType=function(){var e=this._lexer.token;return{kind:l.a.NAMED_TYPE,name:this.parseName(),loc:this.loc(e)}},t.parseTypeSystemDefinition=function(){var e=this.peekDescription()?this._lexer.lookahead():this._lexer.token;if(e.kind===u.NAME)switch(e.value){case"schema":return 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e=this._lexer.token,t=this.parseOperationType();this.expectToken(u.COLON);var n=this.parseNamedType();return{kind:l.a.OPERATION_TYPE_DEFINITION,operation:t,type:n,loc:this.loc(e)}},t.parseScalarTypeDefinition=function(){var e=this._lexer.token,t=this.parseDescription();this.expectKeyword("scalar");var n=this.parseName(),r=this.parseDirectives(!0);return{kind:l.a.SCALAR_TYPE_DEFINITION,description:t,name:n,directives:r,loc:this.loc(e)}},t.parseObjectTypeDefinition=function(){var e=this._lexer.token,t=this.parseDescription();this.expectKeyword("type");var n=this.parseName(),r=this.parseImplementsInterfaces(),i=this.parseDirectives(!0),o=this.parseFieldsDefinition();return{kind:l.a.OBJECT_TYPE_DEFINITION,description:t,name:n,interfaces:r,directives:i,fields:o,loc:this.loc(e)}},t.parseImplementsInterfaces=function(){var e;if(!this.expectOptionalKeyword("implements"))return[];if(!0===(null===(e=this._options)||void 0===e?void 0:e.allowLegacySDLImplementsInterfaces)){var 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e=this._lexer.token,t=this.parseDescription(),n=this.parseName();this.expectToken(u.COLON);var r,i=this.parseTypeReference();this.expectOptionalToken(u.EQUALS)&&(r=this.parseValueLiteral(!0));var o=this.parseDirectives(!0);return{kind:l.a.INPUT_VALUE_DEFINITION,description:t,name:n,type:i,defaultValue:r,directives:o,loc:this.loc(e)}},t.parseInterfaceTypeDefinition=function(){var e=this._lexer.token,t=this.parseDescription();this.expectKeyword("interface");var n=this.parseName(),r=this.parseImplementsInterfaces(),i=this.parseDirectives(!0),o=this.parseFieldsDefinition();return{kind:l.a.INTERFACE_TYPE_DEFINITION,description:t,name:n,interfaces:r,directives:i,fields:o,loc:this.loc(e)}},t.parseUnionTypeDefinition=function(){var e=this._lexer.token,t=this.parseDescription();this.expectKeyword("union");var n=this.parseName(),r=this.parseDirectives(!0),i=this.parseUnionMemberTypes();return{kind:l.a.UNION_TYPE_DEFINITION,description:t,name:n,directives:r,types:i,loc:this.loc(e)}},t.parseUnionMemberTypes=function(){return this.expectOptionalToken(u.EQUALS)?this.delimitedMany(u.PIPE,this.parseNamedType):[]},t.parseEnumTypeDefinition=function(){var e=this._lexer.token,t=this.parseDescription();this.expectKeyword("enum");var n=this.parseName(),r=this.parseDirectives(!0),i=this.parseEnumValuesDefinition();return{kind:l.a.ENUM_TYPE_DEFINITION,description:t,name:n,directives:r,values:i,loc:this.loc(e)}},t.parseEnumValuesDefinition=function(){return this.optionalMany(u.BRACE_L,this.parseEnumValueDefinition,u.BRACE_R)},t.parseEnumValueDefinition=function(){var e=this._lexer.token,t=this.parseDescription(),n=this.parseName(),r=this.parseDirectives(!0);return{kind:l.a.ENUM_VALUE_DEFINITION,description:t,name:n,directives:r,loc:this.loc(e)}},t.parseInputObjectTypeDefinition=function(){var e=this._lexer.token,t=this.parseDescription();this.expectKeyword("input");var n=this.parseName(),r=this.parseDirectives(!0),i=this.parseInputFieldsDefinition();return{kind:l.a.INPUT_OBJECT_TYPE_DEFINITION,description:t,name:n,directives:r,fields:i,loc:this.loc(e)}},t.parseInputFieldsDefinition=function(){return this.optionalMany(u.BRACE_L,this.parseInputValueDef,u.BRACE_R)},t.parseTypeSystemExtension=function(){var e=this._lexer.lookahead();if(e.kind===u.NAME)switch(e.value){case"schema":return this.parseSchemaExtension();case"scalar":return this.parseScalarTypeExtension();case"type":return this.parseObjectTypeExtension();case"interface":return this.parseInterfaceTypeExtension();case"union":return this.parseUnionTypeExtension();case"enum":return this.parseEnumTypeExtension();case"input":return this.parseInputObjectTypeExtension()}throw this.unexpected(e)},t.parseSchemaExtension=function(){var e=this._lexer.token;this.expectKeyword("extend"),this.expectKeyword("schema");var t=this.parseDirectives(!0),n=this.optionalMany(u.BRACE_L,this.parseOperationTypeDefinition,u.BRACE_R);if(0===t.length&&0===n.length)throw this.unexpected();return{kind:l.a.SCHEMA_EXTENSION,directives:t,operationTypes:n,loc:this.loc(e)}},t.parseScalarTypeExtension=function(){var e=this._lexer.token;this.expectKeyword("extend"),this.expectKeyword("scalar");var t=this.parseName(),n=this.parseDirectives(!0);if(0===n.length)throw this.unexpected();return{kind:l.a.SCALAR_TYPE_EXTENSION,name:t,directives:n,loc:this.loc(e)}},t.parseObjectTypeExtension=function(){var e=this._lexer.token;this.expectKeyword("extend"),this.expectKeyword("type");var t=this.parseName(),n=this.parseImplementsInterfaces(),r=this.parseDirectives(!0),i=this.parseFieldsDefinition();if(0===n.length&&0===r.length&&0===i.length)throw this.unexpected();return{kind:l.a.OBJECT_TYPE_EXTENSION,name:t,interfaces:n,directives:r,fields:i,loc:this.loc(e)}},t.parseInterfaceTypeExtension=function(){var e=this._lexer.token;this.expectKeyword("extend"),this.expectKeyword("interface");var t=this.parseName(),n=this.parseImplementsInterfaces(),r=this.parseDirectives(!0),i=this.parseFieldsDefinition();if(0===n.length&&0===r.length&&0===i.length)throw this.unexpected();return{kind:l.a.INTERFACE_TYPE_EXTENSION,name:t,interfaces:n,directives:r,fields:i,loc:this.loc(e)}},t.parseUnionTypeExtension=function(){var e=this._lexer.token;this.expectKeyword("extend"),this.expectKeyword("union");var t=this.parseName(),n=this.parseDirectives(!0),r=this.parseUnionMemberTypes();if(0===n.length&&0===r.length)throw this.unexpected();return{kind:l.a.UNION_TYPE_EXTENSION,name:t,directives:n,types:r,loc:this.loc(e)}},t.parseEnumTypeExtension=function(){var e=this._lexer.token;this.expectKeyword("extend"),this.expectKeyword("enum");var t=this.parseName(),n=this.parseDirectives(!0),r=this.parseEnumValuesDefinition();if(0===n.length&&0===r.length)throw 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r=this,a=t.cm,s=a.getInputField().ownerDocument,l=s.defaultView||s.parentWindow,c=this.hints=s.createElement("ul"),u=t.cm.options.theme;c.className="CodeMirror-hints "+u,this.selectedHint=n.selectedHint||0;for(var f=n.list,d=0;d<f.length;++d){var p=c.appendChild(s.createElement("li")),h=f[d],m="CodeMirror-hint"+(d!=this.selectedHint?"":" CodeMirror-hint-active");null!=h.className&&(m=h.className+" "+m),p.className=m,h.render?h.render(p,n,h):p.appendChild(s.createTextNode(h.displayText||i(h))),p.hintId=d}var v=t.options.container||s.body,g=a.cursorCoords(t.options.alignWithWord?n.from:null),y=g.left,b=g.bottom,T=!0,E=0,O=0;if(v!==s.body){var w=-1!==["absolute","relative","fixed"].indexOf(l.getComputedStyle(v).position)?v:v.offsetParent,x=w.getBoundingClientRect(),_=s.body.getBoundingClientRect();E=x.left-_.left-w.scrollLeft,O=x.top-_.top-w.scrollTop}c.style.left=y-E+"px",c.style.top=b-O+"px";var k=l.innerWidth||Math.max(s.body.offsetWidth,s.documentElement.offsetWidth),C=l.innerHeight||Math.max(s.body.offsetHeight,s.documentElement.offsetHeight);v.appendChild(c);var S=c.getBoundingClientRect(),N=S.bottom-C,D=c.scrollHeight>c.clientHeight+1,I=a.getScrollInfo();if(N>0){var A=S.bottom-S.top;if(g.top-(g.bottom-S.top)-A>0)c.style.top=(b=g.top-A-O)+"px",T=!1;else if(A>C){c.style.height=C-5+"px",c.style.top=(b=g.bottom-S.top-O)+"px";var L=a.getCursor();n.from.ch!=L.ch&&(g=a.cursorCoords(L),c.style.left=(y=g.left-E)+"px",S=c.getBoundingClientRect())}}var j,F=S.right-k;if(F>0&&(S.right-S.left>k&&(c.style.width=k-5+"px",F-=S.right-S.left-k),c.style.left=(y=g.left-F-E)+"px"),D)for(var M=c.firstChild;M;M=M.nextSibling)M.style.paddingRight=a.display.nativeBarWidth+"px";return a.addKeyMap(this.keyMap=function(e,t){var n={Up:function(){t.moveFocus(-1)},Down:function(){t.moveFocus(1)},PageUp:function(){t.moveFocus(1-t.menuSize(),!0)},PageDown:function(){t.moveFocus(t.menuSize()-1,!0)},Home:function(){t.setFocus(0)},End:function(){t.setFocus(t.length-1)},Enter:t.pick,Tab:t.pick,Esc:t.close};/Mac/.test(navigator.platform)&&(n["Ctrl-P"]=function(){t.moveFocus(-1)},n["Ctrl-N"]=function(){t.moveFocus(1)});var r=e.options.customKeys,i=r?{}:n;function o(e,r){var o;o="string"!=typeof r?function(e){return r(e,t)}:n.hasOwnProperty(r)?n[r]:r,i[e]=o}if(r)for(var a in r)r.hasOwnProperty(a)&&o(a,r[a]);var s=e.options.extraKeys;if(s)for(var a in s)s.hasOwnProperty(a)&&o(a,s[a]);return i}(t,{moveFocus:function(e,t){r.changeActive(r.selectedHint+e,t)},setFocus:function(e){r.changeActive(e)},menuSize:function(){return r.screenAmount()},length:f.length,close:function(){t.close()},pick:function(){r.pick()},data:n})),t.options.closeOnUnfocus&&(a.on("blur",this.onBlur=function(){j=setTimeout((function(){t.close()}),100)}),a.on("focus",this.onFocus=function(){clearTimeout(j)})),a.on("scroll",this.onScroll=function(){var e=a.getScrollInfo(),n=a.getWrapperElement().getBoundingClientRect(),r=b+I.top-e.top,i=r-(l.pageYOffset||(s.documentElement||s.body).scrollTop);if(T||(i+=c.offsetHeight),i<=n.top||i>=n.bottom)return t.close();c.style.top=r+"px",c.style.left=y+I.left-e.left+"px"}),e.on(c,"dblclick",(function(e){var t=o(c,e.target||e.srcElement);t&&null!=t.hintId&&(r.changeActive(t.hintId),r.pick())})),e.on(c,"click",(function(e){var n=o(c,e.target||e.srcElement);n&&null!=n.hintId&&(r.changeActive(n.hintId),t.options.completeOnSingleClick&&r.pick())})),e.on(c,"mousedown",(function(){setTimeout((function(){a.focus()}),20)})),this.scrollToActive(),e.signal(n,"select",f[this.selectedHint],c.childNodes[this.selectedHint]),!0}function s(e,t,n,r){if(e.async)e(t,r,n);else{var i=e(t,n);i&&i.then?i.then(r):r(i)}}t.prototype={close:function(){this.active()&&(this.cm.state.completionActive=null,this.tick=null,this.cm.off("cursorActivity",this.activityFunc),this.widget&&this.data&&e.signal(this.data,"close"),this.widget&&this.widget.close(),e.signal(this.cm,"endCompletion",this.cm))},active:function(){return this.cm.state.completionActive==this},pick:function(t,n){var r=t.list[n],o=this;this.cm.operation((function(){r.hint?r.hint(o.cm,t,r):o.cm.replaceRange(i(r),r.from||t.from,r.to||t.to,"complete"),e.signal(t,"pick",r),o.cm.scrollIntoView()})),this.close()},cursorActivity:function(){this.debounce&&(r(this.debounce),this.debounce=0);var e=this.startPos;this.data&&(e=this.data.from);var t=this.cm.getCursor(),i=this.cm.getLine(t.line);if(t.line!=this.startPos.line||i.length-t.ch!=this.startLen-this.startPos.ch||t.ch<e.ch||this.cm.somethingSelected()||!t.ch||this.options.closeCharacters.test(i.charAt(t.ch-1)))this.close();else{var o=this;this.debounce=n((function(){o.update()})),this.widget&&this.widget.disable()}},update:function(e){if(null!=this.tick){var t=this,n=++this.tick;s(this.options.hint,this.cm,this.options,(function(r){t.tick==n&&t.finishUpdate(r,e)}))}},finishUpdate:function(t,n){this.data&&e.signal(this.data,"update");var r=this.widget&&this.widget.picked||n&&this.options.completeSingle;this.widget&&this.widget.close(),this.data=t,t&&t.list.length&&(r&&1==t.list.length?this.pick(t,0):(this.widget=new a(this,t),e.signal(t,"shown")))}},a.prototype={close:function(){if(this.completion.widget==this){this.completion.widget=null,this.hints.parentNode.removeChild(this.hints),this.completion.cm.removeKeyMap(this.keyMap);var e=this.completion.cm;this.completion.options.closeOnUnfocus&&(e.off("blur",this.onBlur),e.off("focus",this.onFocus)),e.off("scroll",this.onScroll)}},disable:function(){this.completion.cm.removeKeyMap(this.keyMap);var e=this;this.keyMap={Enter:function(){e.picked=!0}},this.completion.cm.addKeyMap(this.keyMap)},pick:function(){this.completion.pick(this.data,this.selectedHint)},changeActive:function(t,n){if(t>=this.data.list.length?t=n?this.data.list.length-1:0:t<0&&(t=n?0:this.data.list.length-1),this.selectedHint!=t){var r=this.hints.childNodes[this.selectedHint];r&&(r.className=r.className.replace(" CodeMirror-hint-active","")),(r=this.hints.childNodes[this.selectedHint=t]).className+=" CodeMirror-hint-active",this.scrollToActive(),e.signal(this.data,"select",this.data.list[this.selectedHint],r)}},scrollToActive:function(){var e=this.completion.options.scrollMargin||0,t=this.hints.childNodes[Math.max(0,this.selectedHint-e)],n=this.hints.childNodes[Math.min(this.data.list.length-1,this.selectedHint+e)],r=this.hints.firstChild;t.offsetTop<this.hints.scrollTop?this.hints.scrollTop=t.offsetTop-r.offsetTop:n.offsetTop+n.offsetHeight>this.hints.scrollTop+this.hints.clientHeight&&(this.hints.scrollTop=n.offsetTop+n.offsetHeight-this.hints.clientHeight+r.offsetTop)},screenAmount:function(){return Math.floor(this.hints.clientHeight/this.hints.firstChild.offsetHeight)||1}},e.registerHelper("hint","auto",{resolve:function(t,n){var r,i=t.getHelpers(n,"hint");if(i.length){var o=function(e,t,n){var r=function(e,t){if(!e.somethingSelected())return t;for(var n=[],r=0;r<t.length;r++)t[r].supportsSelection&&n.push(t[r]);return n}(e,i);!function i(o){if(o==r.length)return t(null);s(r[o],e,n,(function(e){e&&e.list.length>0?t(e):i(o+1)}))}(0)};return o.async=!0,o.supportsSelection=!0,o}return(r=t.getHelper(t.getCursor(),"hintWords"))?function(t){return e.hint.fromList(t,{words:r})}:e.hint.anyword?function(t,n){return e.hint.anyword(t,n)}:function(){}}}),e.registerHelper("hint","fromList",(function(t,n){var r,i=t.getCursor(),o=t.getTokenAt(i),a=e.Pos(i.line,o.start),s=i;o.start<i.ch&&/\w/.test(o.string.charAt(i.ch-o.start-1))?r=o.string.substr(0,i.ch-o.start):(r="",a=i);for(var l=[],c=0;c<n.words.length;c++){var u=n.words[c];u.slice(0,r.length)==r&&l.push(u)}if(l.length)return{list:l,from:a,to:s}})),e.commands.autocomplete=e.showHint;var l={hint:e.hint.auto,completeSingle:!0,alignWithWord:!0,closeCharacters:/[\s()\[\]{};:>,]/,closeOnUnfocus:!0,completeOnSingleClick:!0,container:null,customKeys:null,extraKeys:null};e.defineOption("hintOptions",null)}(n(11))})?r.apply(t,i):r)||(e.exports=o)},function(e,t,n){var r,i,o;"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self&&self,i=[],void 0===(o="function"==typeof(r=function(){"use strict";!function(e){var t=/MSIE \d/.test(navigator.userAgent)&&(null==document.documentMode||document.documentMode<8),n=e.Pos,r={"(":")>",")":"(<","[":"]>","]":"[<","{":"}>","}":"{<","<":">>",">":"<<"};function i(e){return e&&e.bracketRegex||/[(){}[\]]/}function o(e,t,o){var s=e.getLineHandle(t.line),l=t.ch-1,c=o&&o.afterCursor;null==c&&(c=/(^| )cm-fat-cursor($| )/.test(e.getWrapperElement().className));var u=i(o),f=!c&&l>=0&&u.test(s.text.charAt(l))&&r[s.text.charAt(l)]||u.test(s.text.charAt(l+1))&&r[s.text.charAt(++l)];if(!f)return null;var d=">"==f.charAt(1)?1:-1;if(o&&o.strict&&d>0!=(l==t.ch))return null;var p=e.getTokenTypeAt(n(t.line,l+1)),h=a(e,n(t.line,l+(d>0?1:0)),d,p||null,o);return null==h?null:{from:n(t.line,l),to:h&&h.pos,match:h&&h.ch==f.charAt(0),forward:d>0}}function a(e,t,o,a,s){for(var l=s&&s.maxScanLineLength||1e4,c=s&&s.maxScanLines||1e3,u=[],f=i(s),d=o>0?Math.min(t.line+c,e.lastLine()+1):Math.max(e.firstLine()-1,t.line-c),p=t.line;p!=d;p+=o){var h=e.getLine(p);if(h){var m=o>0?0:h.length-1,v=o>0?h.length:-1;if(!(h.length>l))for(p==t.line&&(m=t.ch-(o<0?1:0));m!=v;m+=o){var g=h.charAt(m);if(f.test(g)&&(void 0===a||e.getTokenTypeAt(n(p,m+1))==a)){var y=r[g];if(y&&">"==y.charAt(1)==o>0)u.push(g);else{if(!u.length)return{pos:n(p,m),ch:g};u.pop()}}}}}return p-o!=(o>0?e.lastLine():e.firstLine())&&null}function s(e,r,i){for(var a=e.state.matchBrackets.maxHighlightLineLength||1e3,s=[],l=e.listSelections(),c=0;c<l.length;c++){var u=l[c].empty()&&o(e,l[c].head,i);if(u&&e.getLine(u.from.line).length<=a){var f=u.match?"CodeMirror-matchingbracket":"CodeMirror-nonmatchingbracket";s.push(e.markText(u.from,n(u.from.line,u.from.ch+1),{className:f})),u.to&&e.getLine(u.to.line).length<=a&&s.push(e.markText(u.to,n(u.to.line,u.to.ch+1),{className:f}))}}if(s.length){t&&e.state.focused&&e.focus();var d=function(){e.operation((function(){for(var e=0;e<s.length;e++)s[e].clear()}))};if(!r)return d;setTimeout(d,800)}}function l(e){e.operation((function(){e.state.matchBrackets.currentlyHighlighted&&(e.state.matchBrackets.currentlyHighlighted(),e.state.matchBrackets.currentlyHighlighted=null),e.state.matchBrackets.currentlyHighlighted=s(e,!1,e.state.matchBrackets)}))}e.defineOption("matchBrackets",!1,(function(t,n,r){function i(e){e.state.matchBrackets&&e.state.matchBrackets.currentlyHighlighted&&(e.state.matchBrackets.currentlyHighlighted(),e.state.matchBrackets.currentlyHighlighted=null)}r&&r!=e.Init&&(t.off("cursorActivity",l),t.off("focus",l),t.off("blur",i),i(t)),n&&(t.state.matchBrackets="object"==typeof n?n:{},t.on("cursorActivity",l),t.on("focus",l),t.on("blur",i))})),e.defineExtension("matchBrackets",(function(){s(this,!0)})),e.defineExtension("findMatchingBracket",(function(e,t,n){return(n||"boolean"==typeof t)&&(n?(n.strict=t,t=n):t=t?{strict:!0}:null),o(this,e,t)})),e.defineExtension("scanForBracket",(function(e,t,n,r){return a(this,e,t,n,r)}))}(n(11))})?r.apply(t,i):r)||(e.exports=o)},function(e,t,n){var r,i,o;"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self&&self,i=[],void 0===(o="function"==typeof(r=function(){"use strict";!function(e){e.defineOption("foldGutter",!1,(function(t,r,i){var o;i&&i!=e.Init&&(t.clearGutter(t.state.foldGutter.options.gutter),t.state.foldGutter=null,t.off("gutterClick",l),t.off("changes",c),t.off("viewportChange",u),t.off("fold",f),t.off("unfold",f),t.off("swapDoc",c)),r&&(t.state.foldGutter=new n((!0===(o=r)&&(o={}),null==o.gutter&&(o.gutter="CodeMirror-foldgutter"),null==o.indicatorOpen&&(o.indicatorOpen="CodeMirror-foldgutter-open"),null==o.indicatorFolded&&(o.indicatorFolded="CodeMirror-foldgutter-folded"),o)),s(t),t.on("gutterClick",l),t.on("changes",c),t.on("viewportChange",u),t.on("fold",f),t.on("unfold",f),t.on("swapDoc",c))}));var t=e.Pos;function n(e){this.options=e,this.from=this.to=0}function r(e,n){for(var r=e.findMarks(t(n,0),t(n+1,0)),i=0;i<r.length;++i)if(r[i].__isFold){var o=r[i].find(-1);if(o&&o.line===n)return r[i]}}function i(e){if("string"==typeof e){var t=document.createElement("div");return t.className=e+" CodeMirror-guttermarker-subtle",t}return e.cloneNode(!0)}function o(e,n,o){var s=e.state.foldGutter.options,l=n-1,c=e.foldOption(s,"minFoldSize"),u=e.foldOption(s,"rangeFinder"),f="string"==typeof s.indicatorFolded&&a(s.indicatorFolded),d="string"==typeof s.indicatorOpen&&a(s.indicatorOpen);e.eachLine(n,o,(function(n){++l;var o=null,a=n.gutterMarkers;if(a&&(a=a[s.gutter]),r(e,l)){if(f&&a&&f.test(a.className))return;o=i(s.indicatorFolded)}else{var p=t(l,0),h=u&&u(e,p);if(h&&h.to.line-h.from.line>=c){if(d&&a&&d.test(a.className))return;o=i(s.indicatorOpen)}}(o||a)&&e.setGutterMarker(n,s.gutter,o)}))}function a(e){return new RegExp("(^|\\s)"+e+"(?:$|\\s)\\s*")}function s(e){var t=e.getViewport(),n=e.state.foldGutter;n&&(e.operation((function(){o(e,t.from,t.to)})),n.from=t.from,n.to=t.to)}function l(e,n,i){var o=e.state.foldGutter;if(o){var a=o.options;if(i==a.gutter){var s=r(e,n);s?s.clear():e.foldCode(t(n,0),a)}}}function c(e){var t=e.state.foldGutter;if(t){var n=t.options;t.from=t.to=0,clearTimeout(t.changeUpdate),t.changeUpdate=setTimeout((function(){s(e)}),n.foldOnChangeTimeSpan||600)}}function u(e){var t=e.state.foldGutter;if(t){var n=t.options;clearTimeout(t.changeUpdate),t.changeUpdate=setTimeout((function(){var n=e.getViewport();t.from==t.to||n.from-t.to>20||t.from-n.to>20?s(e):e.operation((function(){n.from<t.from&&(o(e,n.from,t.from),t.from=n.from),n.to>t.to&&(o(e,t.to,n.to),t.to=n.to)}))}),n.updateViewportTimeSpan||400)}}function f(e,t){var n=e.state.foldGutter;if(n){var r=t.line;r>=n.from&&r<n.to&&o(e,r,r+1)}}}(n(11),n(178))})?r.apply(t,i):r)||(e.exports=o)},function(e,t,n){var r,i,o;"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self&&self,i=[],void 0===(o="function"==typeof(r=function(){"use strict";var e;(e=n(11)).registerHelper("fold","brace",(function(t,n){var r,i=n.line,o=t.getLine(i);function a(a){for(var s=n.ch,l=0;;){var c=s<=0?-1:o.lastIndexOf(a,s-1);if(-1!=c){if(1==l&&c<n.ch)break;if(r=t.getTokenTypeAt(e.Pos(i,c+1)),!/^(comment|string)/.test(r))return c+1;s=c-1}else{if(1==l)break;l=1,s=o.length}}}var s="{",l="}",c=a("{");if(null==c&&(s="[",l="]",c=a("[")),null!=c){var u,f,d=1,p=t.lastLine();e:for(var h=i;h<=p;++h)for(var m=t.getLine(h),v=h==i?c:0;;){var g=m.indexOf(s,v),y=m.indexOf(l,v);if(g<0&&(g=m.length),y<0&&(y=m.length),(v=Math.min(g,y))==m.length)break;if(t.getTokenTypeAt(e.Pos(h,v+1))==r)if(v==g)++d;else if(!--d){u=h,f=v;break e}++v}if(null!=u&&i!=u)return{from:e.Pos(i,c),to:e.Pos(u,f)}}})),e.registerHelper("fold","import",(function(t,n){function r(n){if(n<t.firstLine()||n>t.lastLine())return null;var r=t.getTokenAt(e.Pos(n,1));if(/\S/.test(r.string)||(r=t.getTokenAt(e.Pos(n,r.end+1))),"keyword"!=r.type||"import"!=r.string)return null;for(var i=n,o=Math.min(t.lastLine(),n+10);i<=o;++i){var a=t.getLine(i).indexOf(";");if(-1!=a)return{startCh:r.end,end:e.Pos(i,a)}}}var i,o=n.line,a=r(o);if(!a||r(o-1)||(i=r(o-2))&&i.end.line==o-1)return null;for(var s=a.end;;){var l=r(s.line+1);if(null==l)break;s=l.end}return{from:t.clipPos(e.Pos(o,a.startCh+1)),to:s}})),e.registerHelper("fold","include",(function(t,n){function r(n){if(n<t.firstLine()||n>t.lastLine())return null;var r=t.getTokenAt(e.Pos(n,1));return/\S/.test(r.string)||(r=t.getTokenAt(e.Pos(n,r.end+1))),"meta"==r.type&&"#include"==r.string.slice(0,8)?r.start+8:void 0}var i=n.line,o=r(i);if(null==o||null!=r(i-1))return null;for(var a=i;null!=r(a+1);)++a;return{from:e.Pos(i,o+1),to:t.clipPos(e.Pos(a))}}))})?r.apply(t,i):r)||(e.exports=o)},function(e,t,n){var r,i,o;"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self&&self,i=[],void 0===(o="function"==typeof(r=function(){"use strict";!function(e){function t(e,t){var n=Number(t);return/^[-+]/.test(t)?e.getCursor().line+n:n-1}e.commands.jumpToLine=function(e){var n=e.getCursor();!function(e,t,n,r,i){e.openDialog?e.openDialog(t,i,{value:r,selectValueOnOpen:!0}):i(prompt(n,r))}(e,function(e){return e.phrase("Jump to line:")+' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">'+e.phrase("(Use line:column or scroll% syntax)")+"</span>"}(e),e.phrase("Jump to line:"),n.line+1+":"+n.ch,(function(r){var i;if(r)if(i=/^\s*([\+\-]?\d+)\s*\:\s*(\d+)\s*$/.exec(r))e.setCursor(t(e,i[1]),Number(i[2]));else if(i=/^\s*([\+\-]?\d+(\.\d+)?)\%\s*/.exec(r)){var o=Math.round(e.lineCount()*Number(i[1])/100);/^[-+]/.test(i[1])&&(o=n.line+o+1),e.setCursor(o-1,n.ch)}else(i=/^\s*\:?\s*([\+\-]?\d+)\s*/.exec(r))&&e.setCursor(t(e,i[1]),n.ch)}))},e.keyMap.default["Alt-G"]="jumpToLine"}(n(11),n(35))})?r.apply(t,i):r)||(e.exports=o)},function(e,t,n){var r,i,o;"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self&&self,i=[],void 0===(o="function"==typeof(r=function(){"use 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l=n(s.line+(r?0:1),0);t.replaceRange("\n",l,null,"+insertLine"),t.indentLine(l.line,null,!0),i.push({head:l,anchor:l}),o=s.line+1}}t.setSelections(i)})),t.execCommand("indentAuto")}function o(t,r){for(var i=r.ch,o=i,a=t.getLine(r.line);i&&e.isWordChar(a.charAt(i-1));)--i;for(;o<a.length&&e.isWordChar(a.charAt(o));)++o;return{from:n(r.line,i),to:n(r.line,o),word:a.slice(i,o)}}function a(e,t){for(var n=e.listSelections(),r=[],i=0;i<n.length;i++){var o=n[i],a=e.findPosV(o.anchor,t,"line",o.anchor.goalColumn),s=e.findPosV(o.head,t,"line",o.head.goalColumn);a.goalColumn=null!=o.anchor.goalColumn?o.anchor.goalColumn:e.cursorCoords(o.anchor,"div").left,s.goalColumn=null!=o.head.goalColumn?o.head.goalColumn:e.cursorCoords(o.head,"div").left;var l={anchor:a,head:s};r.push(o),r.push(l)}e.setSelections(r)}function s(t){for(var r=t.listSelections(),i=[],o=0;o<r.length;o++){var a=r[o],s=a.head,l=t.scanForBracket(s,-1);if(!l)return!1;for(;;){var c=t.scanForBracket(s,1);if(!c)return!1;if(c.ch=="(){}[]".charAt("(){}[]".indexOf(l.ch)+1)){var u=n(l.pos.line,l.pos.ch+1);if(0!=e.cmpPos(u,a.from())||0!=e.cmpPos(c.pos,a.to())){i.push({anchor:u,head:c.pos});break}if(!(l=t.scanForBracket(l.pos,-1)))return!1}s=n(c.pos.line,c.pos.ch+1)}}return t.setSelections(i),!0}function l(e){return e?/\bpunctuation\b/.test(e)?e:void 0:null}function c(t,r){if(t.isReadOnly())return e.Pass;for(var i,o=t.listSelections(),a=[],s=0;s<o.length;s++){var l=o[s];if(!l.empty()){for(var c=l.from().line,u=l.to().line;s<o.length-1&&o[s+1].from().line==u;)u=o[++s].to().line;o[s].to().ch||u--,a.push(c,u)}}a.length?i=!0:a.push(t.firstLine(),t.lastLine()),t.operation((function(){for(var e=[],o=0;o<a.length;o+=2){var s=a[o],l=a[o+1],c=n(s,0),u=n(l),f=t.getRange(c,u,!1);r?f.sort():f.sort((function(e,t){var n=e.toUpperCase(),r=t.toUpperCase();return n!=r&&(e=n,t=r),e<t?-1:e==t?0:1})),t.replaceRange(f,c,u),i&&e.push({anchor:c,head:n(l+1,0)})}i&&t.setSelections(e,0)}))}function u(t,n){t.operation((function(){for(var r=t.listSelections(),i=[],a=[],s=0;s<r.length;s++)(c=r[s]).empty()?(i.push(s),a.push("")):a.push(n(t.getRange(c.from(),c.to())));var l;for(t.replaceSelections(a,"around","case"),s=i.length-1;s>=0;s--){var c=r[i[s]];if(!(l&&e.cmpPos(c.head,l)>0)){var u=o(t,c.head);l=u.from,t.replaceRange(n(u.word),u.from,u.to)}}}))}function f(t){var n=t.getCursor("from"),r=t.getCursor("to");if(0==e.cmpPos(n,r)){var i=o(t,n);if(!i.word)return;n=i.from,r=i.to}return{from:n,to:r,query:t.getRange(n,r),word:i}}function d(e,t){var r=f(e);if(r){var i=r.query,o=e.getSearchCursor(i,t?r.to:r.from);(t?o.findNext():o.findPrevious())?e.setSelection(o.from(),o.to()):(o=e.getSearchCursor(i,t?n(e.firstLine(),0):e.clipPos(n(e.lastLine()))),(t?o.findNext():o.findPrevious())?e.setSelection(o.from(),o.to()):r.word&&e.setSelection(r.from,r.to))}}t.goSubwordLeft=function(e){r(e,-1)},t.goSubwordRight=function(e){r(e,1)},t.scrollLineUp=function(e){var t=e.getScrollInfo();if(!e.somethingSelected()){var n=e.lineAtHeight(t.top+t.clientHeight,"local");e.getCursor().line>=n&&e.execCommand("goLineUp")}e.scrollTo(null,t.top-e.defaultTextHeight())},t.scrollLineDown=function(e){var t=e.getScrollInfo();if(!e.somethingSelected()){var n=e.lineAtHeight(t.top,"local")+1;e.getCursor().line<=n&&e.execCommand("goLineDown")}e.scrollTo(null,t.top+e.defaultTextHeight())},t.splitSelectionByLine=function(e){for(var t=e.listSelections(),r=[],i=0;i<t.length;i++)for(var o=t[i].from(),a=t[i].to(),s=o.line;s<=a.line;++s)a.line>o.line&&s==a.line&&0==a.ch||r.push({anchor:s==o.line?o:n(s,0),head:s==a.line?a:n(s)});e.setSelections(r,0)},t.singleSelectionTop=function(e){var t=e.listSelections()[0];e.setSelection(t.anchor,t.head,{scroll:!1})},t.selectLine=function(e){for(var t=e.listSelections(),r=[],i=0;i<t.length;i++){var o=t[i];r.push({anchor:n(o.from().line,0),head:n(o.to().line+1,0)})}e.setSelections(r)},t.insertLineAfter=function(e){return i(e,!1)},t.insertLineBefore=function(e){return i(e,!0)},t.selectNextOccurrence=function(t){var r=t.getCursor("from"),i=t.getCursor("to"),a=t.state.sublimeFindFullWord==t.doc.sel;if(0==e.cmpPos(r,i)){var s=o(t,r);if(!s.word)return;t.setSelection(s.from,s.to),a=!0}else{var l=t.getRange(r,i),c=a?new RegExp("\\b"+l+"\\b"):l,u=t.getSearchCursor(c,i),f=u.findNext();if(f||(f=(u=t.getSearchCursor(c,n(t.firstLine(),0))).findNext()),!f||function(t,n,r){for(var i=0;i<t.length;i++)if(0==e.cmpPos(t[i].from(),n)&&0==e.cmpPos(t[i].to(),r))return!0;return!1}(t.listSelections(),u.from(),u.to()))return;t.addSelection(u.from(),u.to())}a&&(t.state.sublimeFindFullWord=t.doc.sel)},t.skipAndSelectNextOccurrence=function(n){var r=n.getCursor("anchor"),i=n.getCursor("head");t.selectNextOccurrence(n),0!=e.cmpPos(r,i)&&n.doc.setSelections(n.doc.listSelections().filter((function(e){return e.anchor!=r||e.head!=i})))},t.addCursorToPrevLine=function(e){a(e,-1)},t.addCursorToNextLine=function(e){a(e,1)},t.selectScope=function(e){s(e)||e.execCommand("selectAll")},t.selectBetweenBrackets=function(t){if(!s(t))return e.Pass},t.goToBracket=function(t){t.extendSelectionsBy((function(r){var i=t.scanForBracket(r.head,1,l(t.getTokenTypeAt(r.head)));if(i&&0!=e.cmpPos(i.pos,r.head))return i.pos;var o=t.scanForBracket(r.head,-1,l(t.getTokenTypeAt(n(r.head.line,r.head.ch+1))));return o&&n(o.pos.line,o.pos.ch+1)||r.head}))},t.swapLineUp=function(t){if(t.isReadOnly())return e.Pass;for(var r=t.listSelections(),i=[],o=t.firstLine()-1,a=[],s=0;s<r.length;s++){var l=r[s],c=l.from().line-1,u=l.to().line;a.push({anchor:n(l.anchor.line-1,l.anchor.ch),head:n(l.head.line-1,l.head.ch)}),0!=l.to().ch||l.empty()||--u,c>o?i.push(c,u):i.length&&(i[i.length-1]=u),o=u}t.operation((function(){for(var e=0;e<i.length;e+=2){var r=i[e],o=i[e+1],s=t.getLine(r);t.replaceRange("",n(r,0),n(r+1,0),"+swapLine"),o>t.lastLine()?t.replaceRange("\n"+s,n(t.lastLine()),null,"+swapLine"):t.replaceRange(s+"\n",n(o,0),null,"+swapLine")}t.setSelections(a),t.scrollIntoView()}))},t.swapLineDown=function(t){if(t.isReadOnly())return e.Pass;for(var r=t.listSelections(),i=[],o=t.lastLine()+1,a=r.length-1;a>=0;a--){var s=r[a],l=s.to().line+1,c=s.from().line;0!=s.to().ch||s.empty()||l--,l<o?i.push(l,c):i.length&&(i[i.length-1]=c),o=c}t.operation((function(){for(var e=i.length-2;e>=0;e-=2){var r=i[e],o=i[e+1],a=t.getLine(r);r==t.lastLine()?t.replaceRange("",n(r-1),n(r),"+swapLine"):t.replaceRange("",n(r,0),n(r+1,0),"+swapLine"),t.replaceRange(a+"\n",n(o,0),null,"+swapLine")}t.scrollIntoView()}))},t.toggleCommentIndented=function(e){e.toggleComment({indent:!0})},t.joinLines=function(e){for(var t=e.listSelections(),r=[],i=0;i<t.length;i++){for(var o=t[i],a=o.from(),s=a.line,l=o.to().line;i<t.length-1&&t[i+1].from().line==l;)l=t[++i].to().line;r.push({start:s,end:l,anchor:!o.empty()&&a})}e.operation((function(){for(var t=0,i=[],o=0;o<r.length;o++){for(var a,s=r[o],l=s.anchor&&n(s.anchor.line-t,s.anchor.ch),c=s.start;c<=s.end;c++){var u=c-t;c==s.end&&(a=n(u,e.getLine(u).length+1)),u<e.lastLine()&&(e.replaceRange(" ",n(u),n(u+1,/^\s*/.exec(e.getLine(u+1))[0].length)),++t)}i.push({anchor:l||a,head:a})}e.setSelections(i,0)}))},t.duplicateLine=function(e){e.operation((function(){for(var t=e.listSelections().length,r=0;r<t;r++){var i=e.listSelections()[r];i.empty()?e.replaceRange(e.getLine(i.head.line)+"\n",n(i.head.line,0)):e.replaceRange(e.getRange(i.from(),i.to()),i.from())}e.scrollIntoView()}))},t.sortLines=function(e){c(e,!0)},t.sortLinesInsensitive=function(e){c(e,!1)},t.nextBookmark=function(e){var t=e.state.sublimeBookmarks;if(t)for(;t.length;){var n=t.shift(),r=n.find();if(r)return t.push(n),e.setSelection(r.from,r.to)}},t.prevBookmark=function(e){var t=e.state.sublimeBookmarks;if(t)for(;t.length;){t.unshift(t.pop());var n=t[t.length-1].find();if(n)return e.setSelection(n.from,n.to);t.pop()}},t.toggleBookmark=function(e){for(var t=e.listSelections(),n=e.state.sublimeBookmarks||(e.state.sublimeBookmarks=[]),r=0;r<t.length;r++){for(var i=t[r].from(),o=t[r].to(),a=t[r].empty()?e.findMarksAt(i):e.findMarks(i,o),s=0;s<a.length;s++)if(a[s].sublimeBookmark){a[s].clear();for(var l=0;l<n.length;l++)n[l]==a[s]&&n.splice(l--,1);break}s==a.length&&n.push(e.markText(i,o,{sublimeBookmark:!0,clearWhenEmpty:!1}))}},t.clearBookmarks=function(e){var t=e.state.sublimeBookmarks;if(t)for(var n=0;n<t.length;n++)t[n].clear();t.length=0},t.selectBookmarks=function(e){var t=e.state.sublimeBookmarks,n=[];if(t)for(var r=0;r<t.length;r++){var i=t[r].find();i?n.push({anchor:i.from,head:i.to}):t.splice(r--,0)}n.length&&e.setSelections(n,0)},t.smartBackspace=function(t){if(t.somethingSelected())return e.Pass;t.operation((function(){for(var r=t.listSelections(),i=t.getOption("indentUnit"),o=r.length-1;o>=0;o--){var a=r[o].head,s=t.getRange({line:a.line,ch:0},a),l=e.countColumn(s,null,t.getOption("tabSize")),c=t.findPosH(a,-1,"char",!1);if(s&&!/\S/.test(s)&&l%i==0){var u=new n(a.line,e.findColumn(s,l-i,i));u.ch!=a.ch&&(c=u)}t.replaceRange("",c,a,"+delete")}}))},t.delLineRight=function(e){e.operation((function(){for(var t=e.listSelections(),r=t.length-1;r>=0;r--)e.replaceRange("",t[r].anchor,n(t[r].to().line),"+delete");e.scrollIntoView()}))},t.upcaseAtCursor=function(e){u(e,(function(e){return e.toUpperCase()}))},t.downcaseAtCursor=function(e){u(e,(function(e){return e.toLowerCase()}))},t.setSublimeMark=function(e){e.state.sublimeMark&&e.state.sublimeMark.clear(),e.state.sublimeMark=e.setBookmark(e.getCursor())},t.selectToSublimeMark=function(e){var t=e.state.sublimeMark&&e.state.sublimeMark.find();t&&e.setSelection(e.getCursor(),t)},t.deleteToSublimeMark=function(t){var n=t.state.sublimeMark&&t.state.sublimeMark.find();if(n){var r=t.getCursor(),i=n;if(e.cmpPos(r,i)>0){var o=i;i=r,r=o}t.state.sublimeKilled=t.getRange(r,i),t.replaceRange("",r,i)}},t.swapWithSublimeMark=function(e){var t=e.state.sublimeMark&&e.state.sublimeMark.find();t&&(e.state.sublimeMark.clear(),e.state.sublimeMark=e.setBookmark(e.getCursor()),e.setCursor(t))},t.sublimeYank=function(e){null!=e.state.sublimeKilled&&e.replaceSelection(e.state.sublimeKilled,null,"paste")},t.showInCenter=function(e){var t=e.cursorCoords(null,"local");e.scrollTo(null,(t.top+t.bottom)/2-e.getScrollInfo().clientHeight/2)},t.findUnder=function(e){d(e,!0)},t.findUnderPrevious=function(e){d(e,!1)},t.findAllUnder=function(e){var t=f(e);if(t){for(var n=e.getSearchCursor(t.query),r=[],i=-1;n.findNext();)r.push({anchor:n.from(),head:n.to()}),n.from().line<=t.from.line&&n.from().ch<=t.from.ch&&i++;e.setSelections(r,i)}};var p=e.keyMap;p.macSublime={"Cmd-Left":"goLineStartSmart","Shift-Tab":"indentLess","Shift-Ctrl-K":"deleteLine","Alt-Q":"wrapLines","Ctrl-Left":"goSubwordLeft","Ctrl-Right":"goSubwordRight","Ctrl-Alt-Up":"scrollLineUp","Ctrl-Alt-Down":"scrollLineDown","Cmd-L":"selectLine","Shift-Cmd-L":"splitSelectionByLine",Esc:"singleSelectionTop","Cmd-Enter":"insertLineAfter","Shift-Cmd-Enter":"insertLineBefore","Cmd-D":"selectNextOccurrence","Shift-Cmd-Space":"selectScope","Shift-Cmd-M":"selectBetweenBrackets","Cmd-M":"goToBracket","Cmd-Ctrl-Up":"swapLineUp","Cmd-Ctrl-Down":"swapLineDown","Cmd-/":"toggleCommentIndented","Cmd-J":"joinLines","Shift-Cmd-D":"duplicateLine",F5:"sortLines","Cmd-F5":"sortLinesInsensitive",F2:"nextBookmark","Shift-F2":"prevBookmark","Cmd-F2":"toggleBookmark","Shift-Cmd-F2":"clearBookmarks","Alt-F2":"selectBookmarks",Backspace:"smartBackspace","Cmd-K Cmd-D":"skipAndSelectNextOccurrence","Cmd-K Cmd-K":"delLineRight","Cmd-K Cmd-U":"upcaseAtCursor","Cmd-K Cmd-L":"downcaseAtCursor","Cmd-K Cmd-Space":"setSublimeMark","Cmd-K Cmd-A":"selectToSublimeMark","Cmd-K Cmd-W":"deleteToSublimeMark","Cmd-K Cmd-X":"swapWithSublimeMark","Cmd-K Cmd-Y":"sublimeYank","Cmd-K Cmd-C":"showInCenter","Cmd-K Cmd-G":"clearBookmarks","Cmd-K Cmd-Backspace":"delLineLeft","Cmd-K Cmd-1":"foldAll","Cmd-K Cmd-0":"unfoldAll","Cmd-K 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e=this.state.subscription;this.setState({isWaitingForResponse:!1,subscription:null}),e&&e.unsubscribe()}),N(this,"handlePrettifyQuery",()=>{var e,t,r;const i=this.getQueryEditor(),o=null!==(e=null==i?void 0:i.getValue())&&void 0!==e?e:"",a=(0,n.print)((0,n.parse)(o,{experimentalFragmentVariables:!0}));a!==o&&(null==i||i.setValue(a));const s=this.getVariableEditor(),l=null!==(t=null==s?void 0:s.getValue())&&void 0!==t?t:"";try{const e=JSON.stringify(JSON.parse(l),null,2);e!==l&&(null==s||s.setValue(e))}catch{}const c=this.getHeaderEditor(),u=null!==(r=null==c?void 0:c.getValue())&&void 0!==r?r:"";try{const e=JSON.stringify(JSON.parse(u),null,2);e!==u&&(null==c||c.setValue(e))}catch{}}),N(this,"handleMergeQuery",()=>{const e=this.getQueryEditor();if(!e.getValue())return;const t=this.state.documentAST;e.setValue((0,n.print)((0,_.default)(t,this.state.schema)))}),N(this,"handleEditQuery",(0,E.default)(100,e=>{const t=this._updateQueryFacts(e,this.state.operationName,this.state.operations,this.state.schema);if(this.setState({query:e,...t}),this._storage.set("query",e),this.props.onEditQuery)return this.props.onEditQuery(e,null==t?void 0:t.documentAST)})),N(this,"handleCopyQuery",()=>{const e=this.getQueryEditor(),t=e&&e.getValue();if(t)return(0,i.default)(t),this.props.onCopyQuery?this.props.onCopyQuery(t):void 0}),N(this,"_updateQueryFacts",(e,t,n,r)=>{const i=(0,b.default)(r,e);if(i){const e=(0,T.default)(n,t,i.operations),r=this.props.onEditOperationName;return r&&e&&t!==e&&r(e),{operationName:e,...i}}}),N(this,"handleEditVariables",e=>{this.setState({variables:e}),(0,E.default)(500,()=>this._storage.set("variables",e))(),this.props.onEditVariables&&this.props.onEditVariables(e)}),N(this,"handleEditHeaders",e=>{this.setState({headers:e}),this.props.shouldPersistHeaders&&(0,E.default)(500,()=>this._storage.set("headers",e))(),this.props.onEditHeaders&&this.props.onEditHeaders(e)}),N(this,"handleEditOperationName",e=>{const t=this.props.onEditOperationName;t&&t(e)}),N(this,"handleHintInformationRender",e=>{let t;e.addEventListener("click",this._onClickHintInformation),e.addEventListener("DOMNodeRemoved",t=()=>{e.removeEventListener("DOMNodeRemoved",t),e.removeEventListener("click",this._onClickHintInformation)})}),N(this,"handleEditorRunQuery",()=>{this._runQueryAtCursor()}),N(this,"_onClickHintInformation",e=>{if((null==e?void 0:e.currentTarget)&&"className"in e.currentTarget&&"typeName"===e.currentTarget.className){const t=e.currentTarget.innerHTML,n=this.state.schema;if(n){const e=n.getType(t);e&&(this.setState({docExplorerOpen:!0},()=>{this.docExplorerComponent&&this.docExplorerComponent.showDoc(e)}),(0,E.default)(500,()=>this._storage.set("docExplorerOpen",JSON.stringify(this.state.docExplorerOpen)))())}}}),N(this,"handleToggleDocs",()=>{"function"==typeof this.props.onToggleDocs&&this.props.onToggleDocs(!this.state.docExplorerOpen),this._storage.set("docExplorerOpen",JSON.stringify(!this.state.docExplorerOpen)),this.setState({docExplorerOpen:!this.state.docExplorerOpen})}),N(this,"handleToggleHistory",()=>{"function"==typeof this.props.onToggleHistory&&this.props.onToggleHistory(!this.state.historyPaneOpen),this._storage.set("historyPaneOpen",JSON.stringify(!this.state.historyPaneOpen)),this.setState({historyPaneOpen:!this.state.historyPaneOpen})}),N(this,"handleSelectHistoryQuery",(e,t,n,r)=>{e&&this.handleEditQuery(e),t&&this.handleEditVariables(t),n&&this.handleEditHeaders(n),r&&this.handleEditOperationName(r)}),N(this,"handleResizeStart",e=>{if(!this._didClickDragBar(e))return;e.preventDefault();const t=e.clientX-(0,x.getLeft)(e.target);let n=e=>{if(0===e.buttons)return r();const n=this.editorBarComponent,i=e.clientX-(0,x.getLeft)(n)-t,o=n.clientWidth-i;this.setState({editorFlex:i/o}),(0,E.default)(500,()=>this._storage.set("editorFlex",JSON.stringify(this.state.editorFlex)))()},r=()=>{document.removeEventListener("mousemove",n),document.removeEventListener("mouseup",r),n=null,r=null};document.addEventListener("mousemove",n),document.addEventListener("mouseup",r)}),N(this,"handleResetResize",()=>{this.setState({editorFlex:1}),this._storage.set("editorFlex",JSON.stringify(this.state.editorFlex))}),N(this,"handleDocsResizeStart",e=>{e.preventDefault();const t=this.state.docExplorerWidth,n=e.clientX-(0,x.getLeft)(e.target);let r=e=>{if(0===e.buttons)return i();const t=this.graphiqlContainer,r=e.clientX-(0,x.getLeft)(t)-n,o=t.clientWidth-r;o<100?("function"==typeof this.props.onToggleDocs&&this.props.onToggleDocs(!this.state.docExplorerOpen),this._storage.set("docExplorerOpen",JSON.stringify(this.state.docExplorerOpen)),this.setState({docExplorerOpen:!1})):(this.setState({docExplorerOpen:!0,docExplorerWidth:Math.min(o,650)}),(0,E.default)(500,()=>this._storage.set("docExplorerWidth",JSON.stringify(this.state.docExplorerWidth)))()),this._storage.set("docExplorerOpen",JSON.stringify(this.state.docExplorerOpen))},i=()=>{this.state.docExplorerOpen||(this.setState({docExplorerWidth:t}),(0,E.default)(500,()=>this._storage.set("docExplorerWidth",JSON.stringify(this.state.docExplorerWidth)))()),document.removeEventListener("mousemove",r),document.removeEventListener("mouseup",i),r=null,i=null};document.addEventListener("mousemove",r),document.addEventListener("mouseup",i)}),N(this,"handleDocsResetResize",()=>{this.setState({docExplorerWidth:350}),(0,E.default)(500,()=>this._storage.set("docExplorerWidth",JSON.stringify(this.state.docExplorerWidth)))()}),N(this,"handleTabClickPropogation",e=>{e.preventDefault(),e.stopPropagation()}),N(this,"handleOpenHeaderEditorTab",e=>{this.setState({headerEditorActive:!0,variableEditorActive:!1,secondaryEditorOpen:!0})}),N(this,"handleOpenVariableEditorTab",e=>{this.setState({headerEditorActive:!1,variableEditorActive:!0,secondaryEditorOpen:!0})}),N(this,"handleSecondaryEditorResizeStart",e=>{e.preventDefault();let t=!1;const n=this.state.secondaryEditorOpen,r=this.state.secondaryEditorHeight,i=e.clientY-(0,x.getTop)(e.target);let o=e=>{if(0===e.buttons)return a();t=!0;const n=this.editorBarComponent,o=e.clientY-(0,x.getTop)(n)-i,s=n.clientHeight-o;s<60?this.setState({secondaryEditorOpen:!1,secondaryEditorHeight:r}):this.setState({secondaryEditorOpen:!0,secondaryEditorHeight:s}),(0,E.default)(500,()=>this._storage.set("secondaryEditorHeight",JSON.stringify(this.state.secondaryEditorHeight)))()},a=()=>{t||this.setState({secondaryEditorOpen:!n}),document.removeEventListener("mousemove",o),document.removeEventListener("mouseup",a),o=null,a=null};document.addEventListener("mousemove",o),document.addEventListener("mouseup",a)}),"function"!=typeof e.fetcher)throw new TypeError("GraphiQL requires a fetcher function.");this._storage=new y.default(e.storage),this.componentIsMounted=!1;const o=void 0!==e.query?e.query:this._storage.get("query")?this._storage.get("query"):void 0!==e.defaultQuery?e.defaultQuery:F,a=(0,b.default)(e.schema,o),s=void 0!==e.variables?e.variables:this._storage.get("variables"),l=void 0!==e.headers?e.headers:this._storage.get("headers"),c=void 0!==e.operationName?e.operationName:(0,T.default)(void 0,this._storage.get("operationName"),a&&a.operations);let u,f=e.docExplorerOpen||!1;this._storage.get("docExplorerOpen")&&(f="true"===this._storage.get("docExplorerOpen")),u=void 0!==e.defaultVariableEditorOpen?e.defaultVariableEditorOpen:void 0!==e.defaultSecondaryEditorOpen?e.defaultSecondaryEditorOpen:Boolean(s||l);const d=null!==(t=e.headerEditorEnabled)&&void 0!==t&&t,p=null!==(r=e.shouldPersistHeaders)&&void 0!==r&&r;this.state={schema:e.schema,query:o,variables:s,headers:l,operationName:c,docExplorerOpen:f,response:e.response,editorFlex:Number(this._storage.get("editorFlex"))||1,secondaryEditorOpen:u,secondaryEditorHeight:Number(this._storage.get("secondaryEditorHeight"))||200,variableEditorActive:"true"!==this._storage.get("variableEditorActive")&&!e.headerEditorEnabled||"true"!==this._storage.get("headerEditorActive"),headerEditorActive:"true"===this._storage.get("headerEditorActive"),headerEditorEnabled:d,shouldPersistHeaders:p,historyPaneOpen:"true"===this._storage.get("historyPaneOpen")||!1,docExplorerWidth:Number(this._storage.get("docExplorerWidth"))||350,isWaitingForResponse:!1,subscription:null,...a}}componentDidMount(){this.componentIsMounted=!0,void 0===this.state.schema&&this.fetchSchema(),this.codeMirrorSizer=new g.default,r.g=this}UNSAFE_componentWillMount(){this.componentIsMounted=!1}UNSAFE_componentWillReceiveProps(e){let t=this.state.schema,n=this.state.query,r=this.state.variables,i=this.state.headers,o=this.state.operationName,a=this.state.response;if(void 0!==e.schema&&(t=e.schema),void 0!==e.query&&this.props.query!==e.query&&(n=e.query),void 0!==e.variables&&this.props.variables!==e.variables&&(r=e.variables),void 0!==e.headers&&this.props.headers!==e.headers&&(i=e.headers),void 0!==e.operationName&&(o=e.operationName),void 0!==e.response&&(a=e.response),n&&t&&(t!==this.state.schema||n!==this.state.query||o!==this.state.operationName)){const e=this._updateQueryFacts(n,o,this.state.operations,t);void 0!==e&&(o=e.operationName,this.setState(e))}void 0===e.schema&&e.fetcher!==this.props.fetcher&&(t=void 0),this._storage.set("operationName",o),this.setState({schema:t,query:n,variables:r,headers:i,operationName:o,response:a},()=>{void 0===this.state.schema&&(this.docExplorerComponent&&this.docExplorerComponent.reset(),this.fetchSchema())})}componentDidUpdate(){this.codeMirrorSizer.updateSizes([this.queryEditorComponent,this.variableEditorComponent,this.headerEditorComponent,this.resultComponent])}render(){var e;const n=t.default.Children.toArray(this.props.children),r=(0,O.default)(n,e=>U(e,D.Logo))||t.default.createElement(D.Logo,null),i=(0,O.default)(n,e=>U(e,D.Toolbar))||t.default.createElement(D.Toolbar,null,t.default.createElement(l.ToolbarButton,{onClick:this.handlePrettifyQuery,title:"Prettify Query (Shift-Ctrl-P)",label:"Prettify"}),t.default.createElement(l.ToolbarButton,{onClick:this.handleMergeQuery,title:"Merge Query (Shift-Ctrl-M)",label:"Merge"}),t.default.createElement(l.ToolbarButton,{onClick:this.handleCopyQuery,title:"Copy Query (Shift-Ctrl-C)",label:"Copy"}),t.default.createElement(l.ToolbarButton,{onClick:this.handleToggleHistory,title:"Show History",label:"History"}),(null===(e=this.props.toolbar)||void 0===e?void 0:e.additionalContent)?this.props.toolbar.additionalContent:null),o=(0,O.default)(n,e=>U(e,D.Footer)),c={WebkitFlex:this.state.editorFlex,flex:this.state.editorFlex},u={display:"block",width:this.state.docExplorerWidth},g="docExplorerWrap"+(this.state.docExplorerWidth<200?" doc-explorer-narrow":""),y={display:this.state.historyPaneOpen?"block":"none",width:"230px",zIndex:7},b=this.state.secondaryEditorOpen,T={height:b?this.state.secondaryEditorHeight:void 0};return t.default.createElement("div",{ref:e=>{this.graphiqlContainer=e},className:"graphiql-container"},this.state.historyPaneOpen&&t.default.createElement("div",{className:"historyPaneWrap",style:y},t.default.createElement(v.QueryHistory,{ref:e=>{this._queryHistory=e},operationName:this.state.operationName,query:this.state.query,variables:this.state.variables,onSelectQuery:this.handleSelectHistoryQuery,storage:this._storage,queryID:this._editorQueryID},t.default.createElement("button",{className:"docExplorerHide",onClick:this.handleToggleHistory,"aria-label":"Close History"},"✕"))),t.default.createElement("div",{className:"editorWrap"},t.default.createElement("div",{className:"topBarWrap"},t.default.createElement("div",{className:"topBar"},r,t.default.createElement(a.ExecuteButton,{isRunning:Boolean(this.state.subscription),onRun:this.handleRunQuery,onStop:this.handleStopQuery,operations:this.state.operations}),i),!this.state.docExplorerOpen&&t.default.createElement("button",{className:"docExplorerShow",onClick:this.handleToggleDocs,"aria-label":"Open Documentation Explorer"},"Docs")),t.default.createElement("div",{ref:e=>{this.editorBarComponent=e},className:"editorBar",onDoubleClick:this.handleResetResize,onMouseDown:this.handleResizeStart},t.default.createElement("div",{className:"queryWrap",style:c},t.default.createElement(f.QueryEditor,{ref:e=>{this.queryEditorComponent=e},schema:this.state.schema,validationRules:this.props.validationRules,value:this.state.query,onEdit:this.handleEditQuery,onHintInformationRender:this.handleHintInformationRender,onClickReference:this.handleClickReference,onCopyQuery:this.handleCopyQuery,onPrettifyQuery:this.handlePrettifyQuery,onMergeQuery:this.handleMergeQuery,onRunQuery:this.handleEditorRunQuery,editorTheme:this.props.editorTheme,readOnly:this.props.readOnly,externalFragments:this.props.externalFragments}),t.default.createElement("section",{className:"variable-editor secondary-editor",style:T,"aria-label":this.state.variableEditorActive?"Query Variables":"Request Headers"},t.default.createElement("div",{className:"secondary-editor-title variable-editor-title",id:"secondary-editor-title",style:{cursor:b?"row-resize":"n-resize"},onMouseDown:this.handleSecondaryEditorResizeStart},t.default.createElement("div",{style:{cursor:"pointer",color:this.state.variableEditorActive?"#000":"gray",display:"inline-block"},onClick:this.handleOpenVariableEditorTab,onMouseDown:this.handleTabClickPropogation},"Query Variables"),this.state.headerEditorEnabled&&t.default.createElement("div",{style:{cursor:"pointer",color:this.state.headerEditorActive?"#000":"gray",display:"inline-block",marginLeft:"20px"},onClick:this.handleOpenHeaderEditorTab,onMouseDown:this.handleTabClickPropogation},"Request Headers")),t.default.createElement(d.VariableEditor,{ref:e=>{this.variableEditorComponent=e},value:this.state.variables,variableToType:this.state.variableToType,onEdit:this.handleEditVariables,onHintInformationRender:this.handleHintInformationRender,onPrettifyQuery:this.handlePrettifyQuery,onMergeQuery:this.handleMergeQuery,onRunQuery:this.handleEditorRunQuery,editorTheme:this.props.editorTheme,readOnly:this.props.readOnly,active:this.state.variableEditorActive}),this.state.headerEditorEnabled&&t.default.createElement(p.HeaderEditor,{ref:e=>{this.headerEditorComponent=e},value:this.state.headers,onEdit:this.handleEditHeaders,onHintInformationRender:this.handleHintInformationRender,onPrettifyQuery:this.handlePrettifyQuery,onMergeQuery:this.handleMergeQuery,onRunQuery:this.handleEditorRunQuery,editorTheme:this.props.editorTheme,readOnly:this.props.readOnly,active:this.state.headerEditorActive}))),t.default.createElement("div",{className:"resultWrap"},this.state.isWaitingForResponse&&t.default.createElement("div",{className:"spinner-container"},t.default.createElement("div",{className:"spinner"})),t.default.createElement(h.ResultViewer,{registerRef:e=>{this.resultViewerElement=e},ref:e=>{this.resultComponent=e},value:this.state.response,editorTheme:this.props.editorTheme,ResultsTooltip:this.props.ResultsTooltip,ImagePreview:s.ImagePreview}),o))),this.state.docExplorerOpen&&t.default.createElement("div",{className:g,style:u},t.default.createElement("div",{className:"docExplorerResizer",onDoubleClick:this.handleDocsResetResize,onMouseDown:this.handleDocsResizeStart}),t.default.createElement(m.DocExplorer,{ref:e=>{this.docExplorerComponent=e},schema:this.state.schema},t.default.createElement("button",{className:"docExplorerHide",onClick:this.handleToggleDocs,"aria-label":"Close Documentation Explorer"},"✕"))))}getQueryEditor(){if(this.queryEditorComponent)return this.queryEditorComponent.getCodeMirror()}getVariableEditor(){return this.variableEditorComponent?this.variableEditorComponent.getCodeMirror():null}getHeaderEditor(){return this.headerEditorComponent?this.headerEditorComponent.getCodeMirror():null}refresh(){this.queryEditorComponent&&this.queryEditorComponent.getCodeMirror().refresh(),this.variableEditorComponent&&this.variableEditorComponent.getCodeMirror().refresh(),this.headerEditorComponent&&this.headerEditorComponent.getCodeMirror().refresh(),this.resultComponent&&this.resultComponent.getCodeMirror().refresh()}autoCompleteLeafs(){const{insertions:e,result:t}=(0,w.fillLeafs)(this.state.schema,this.state.query,this.props.getDefaultFieldNames);if(e&&e.length>0){const n=this.getQueryEditor();n&&n.operation(()=>{const r=n.getCursor(),i=n.indexFromPos(r);n.setValue(t||"");let o=0;const a=e.map(({index:e,string:t})=>n.markText(n.posFromIndex(e+o),n.posFromIndex(e+(o+=t.length)),{className:"autoInsertedLeaf",clearOnEnter:!0,title:"Automatically added leaf fields"}));setTimeout(()=>a.forEach(e=>e.clear()),7e3);let s=i;e.forEach(({index:e,string:t})=>{e<i&&(s+=t.length)}),n.setCursor(n.posFromIndex(s))})}return t}fetchSchema(){const e=this.props.fetcher,t={shouldPersistHeaders:Boolean(this.props.shouldPersistHeaders),documentAST:this.state.documentAST};this.state.headers&&this.state.headers.trim().length>2?t.headers=JSON.parse(this.state.headers):this.props.headers&&(t.headers=JSON.parse(this.props.headers));const r=V(e({query:k.introspectionQuery,operationName:k.introspectionQueryName},t));M(r)?r.then(n=>{if("string"!=typeof n&&"data"in n)return n;const i=V(e({query:k.introspectionQuerySansSubscriptions,operationName:k.introspectionQueryName},t));if(!M(r))throw new Error("Fetcher did not return a Promise for introspection.");return i}).then(e=>{if(void 0===this.state.schema)if("string"!=typeof e&&"data"in e){const t=(0,n.buildClientSchema)(e.data),r=(0,b.default)(t,this.state.query);this.safeSetState({schema:t,...r})}else{const t="string"==typeof e?e:D.formatResult(e);this.safeSetState({schema:void 0,response:t})}}).catch(e=>{this.safeSetState({schema:void 0,response:e?D.formatError(e):void 0})}):this.setState({response:"Fetcher did not return a Promise for introspection."})}async _fetchQuery(e,t,r,i,a,s){const l=this.props.fetcher;let c=null,u=null;try{c=t&&""!==t.trim()?JSON.parse(t):null}catch(e){throw new Error(`Variables are invalid JSON: ${e.message}.`)}if("object"!=typeof c)throw new Error("Variables are not a JSON object.");try{u=r&&""!==r.trim()?JSON.parse(r):null}catch(e){throw new Error(`Headers are invalid JSON: ${e.message}.`)}if("object"!=typeof u)throw new Error("Headers are not a JSON object.");if(this.props.externalFragments){const t=new Map;Array.isArray(this.props.externalFragments)?this.props.externalFragments.forEach(e=>{t.set(e.name.value,e)}):(0,n.visit)((0,n.parse)(this.props.externalFragments,{experimentalFragmentVariables:!0}),{FragmentDefinition(e){t.set(e.name.value,e)}});const r=(0,o.getFragmentDependenciesForAST)(this.state.documentAST,t);r.length>0&&(e+="\n"+r.map(e=>(0,n.print)(e)).join("\n"))}const f=l({query:e,variables:c,operationName:i},{headers:u,shouldPersistHeaders:a,documentAST:this.state.documentAST});return Promise.resolve(f).then(e=>R(e)?e.subscribe({next:s,error:e=>{this.safeSetState({isWaitingForResponse:!1,response:e?D.formatError(e):void 0,subscription:null})},complete:()=>{this.safeSetState({isWaitingForResponse:!1,subscription:null})}}):P(e)?((async()=>{try{for await(const t of e)s(t);this.safeSetState({isWaitingForResponse:!1,subscription:null})}catch(e){this.safeSetState({isWaitingForResponse:!1,response:e?D.formatError(e):void 0,subscription:null})}})(),{unsubscribe:()=>{var t,n;return null===(t=(n=e[Symbol.asyncIterator]()).return)||void 0===t?void 0:t.call(n)}}):(s(e),null)).catch(e=>(this.safeSetState({isWaitingForResponse:!1,response:e?D.formatError(e):void 0}),null))}_runQueryAtCursor(){if(this.state.subscription)return void this.handleStopQuery();let e;const t=this.state.operations;if(t){const n=this.getQueryEditor();if(n&&n.hasFocus()){const r=n.getCursor(),i=n.indexFromPos(r);for(let n=0;n<t.length;n++){const r=t[n];if(r.loc&&r.loc.start<=i&&r.loc.end>=i){e=r.name&&r.name.value;break}}}}this.handleRunQuery(e)}_didClickDragBar(e){if(0!==e.button||e.ctrlKey)return!1;let t=e.target;if(0!==t.className.indexOf("CodeMirror-gutter"))return!1;const n=this.resultViewerElement;for(;t;){if(t===n)return!0;t=t.parentNode}return!1}}function I(e){return t.default.createElement("div",{className:"title"},e.children||t.default.createElement("span",null,"Graph",t.default.createElement("em",null,"i"),"QL"))}function A(e){return t.default.createElement("div",{className:"toolbar",role:"toolbar","aria-label":"Editor Commands"},e.children)}function L(e){return t.default.createElement("div",{className:"footer"},e.children)}e.GraphiQL=D,N(D,"Logo",I),N(D,"Toolbar",A),N(D,"Footer",L),N(D,"QueryEditor",f.QueryEditor),N(D,"VariableEditor",d.VariableEditor),N(D,"HeaderEditor",p.HeaderEditor),N(D,"ResultViewer",h.ResultViewer),N(D,"Button",l.ToolbarButton),N(D,"ToolbarButton",l.ToolbarButton),N(D,"Group",c.ToolbarGroup),N(D,"Menu",u.ToolbarMenu),N(D,"MenuItem",u.ToolbarMenuItem),I.displayName="GraphiQLLogo",A.displayName="GraphiQLToolbar",L.displayName="GraphiQLFooter";const j=e=>({...e,message:e.message,stack:e.stack}),F='# Welcome to GraphiQL\n#\n# GraphiQL is an in-browser tool for writing, validating, and\n# testing GraphQL queries.\n#\n# Type queries into this side of the screen, and you will see intelligent\n# typeaheads aware of the current GraphQL type schema and live syntax and\n# validation errors highlighted 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e.blkIndent=v,!0}})?r.apply(t,i):r)||(e.exports=o)},function(e,t,n){var r,i,o;"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self&&self,i=[],void 0===(o="function"==typeof(r=function(){"use strict";var t=n(13).isSpace;e.exports=function(e,n,r,i){var o,a,s,l,c=e.bMarks[n]+e.tShift[n],u=e.eMarks[n];if(e.sCount[n]-e.blkIndent>=4)return!1;if(42!==(o=e.src.charCodeAt(c++))&&45!==o&&95!==o)return!1;for(a=1;c<u;){if((s=e.src.charCodeAt(c++))!==o&&!t(s))return!1;s===o&&a++}return!(a<3||(i||(e.line=n+1,(l=e.push("hr","hr",0)).map=[n,e.line],l.markup=Array(a+1).join(String.fromCharCode(o))),0))}})?r.apply(t,i):r)||(e.exports=o)},function(e,t,n){var r,i,o;"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self&&self,i=[],void 0===(o="function"==typeof(r=function(){"use strict";var t=n(13).isSpace;function r(e,n){var r,i,o,a;return i=e.bMarks[n]+e.tShift[n],o=e.eMarks[n],42!==(r=e.src.charCodeAt(i++))&&45!==r&&43!==r||i<o&&(a=e.src.charCodeAt(i),!t(a))?-1:i}function 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e.col+=t.length,u=document.createTextNode(c),e.map.push(e.pos,e.pos+t.length,u),s&&l<9&&(f=!0),e.pos+=t.length;if(e.trailingSpace=32==c.charCodeAt(t.length-1),n||r||i||f||o||a){var E=n||"";r&&(E+=r),i&&(E+=i);var T=I("span",[u],E,o);if(a)for(var w in a)a.hasOwnProperty(w)&&"style"!=w&&"class"!=w&&T.setAttribute(w,a[w]);return e.content.appendChild(T)}e.content.appendChild(u)}}function bn(e,t){if(e.length>1&&!/  /.test(e))return e;for(var n=t,r="",i=0;i<e.length;i++){var o=e.charAt(i);" "!=o||!n||i!=e.length-1&&32!=e.charCodeAt(i+1)||(o=" "),r+=o,n=" "==o}return r}function En(e,t){return function(n,r,i,o,a,s,l){i=i?i+" cm-force-border":"cm-force-border";for(var u=n.pos,c=u+r.length;;){for(var d=void 0,f=0;f<t.length&&!((d=t[f]).to>u&&d.from<=u);f++);if(d.to>=c)return e(n,r,i,o,a,s,l);e(n,r.slice(0,d.to-u),i,o,null,s,l),o=null,r=r.slice(d.to-u),u=d.to}}}function Tn(e,t,n,r){var i=!r&&n.widgetNode;i&&e.map.push(e.pos,e.pos+t,i),!r&&e.cm.display.input.needsContentAttribute&&(i||(i=e.content.appendChild(document.createElement("span"))),i.setAttribute("cm-marker",n.id)),i&&(e.cm.display.input.setUneditable(i),e.content.appendChild(i)),e.pos+=t,e.trailingSpace=!1}function wn(e,t,n){var r=e.markedSpans,i=e.text,o=0;if(r)for(var a,s,l,u,c,d,f,p=i.length,h=0,m=1,g="",v=0;;){if(v==h){l=u=c=s="",f=null,d=null,v=1/0;for(var y=[],b=void 0,E=0;E<r.length;++E){var T=r[E],w=T.marker;if("bookmark"==w.type&&T.from==h&&w.widgetNode)y.push(w);else if(T.from<=h&&(null==T.to||T.to>h||w.collapsed&&T.to==h&&T.from==h)){if(null!=T.to&&T.to!=h&&v>T.to&&(v=T.to,u=""),w.className&&(l+=" "+w.className),w.css&&(s=(s?s+";":"")+w.css),w.startStyle&&T.from==h&&(c+=" "+w.startStyle),w.endStyle&&T.to==v&&(b||(b=[])).push(w.endStyle,T.to),w.title&&((f||(f={})).title=w.title),w.attributes)for(var C in w.attributes)(f||(f={}))[C]=w.attributes[C];w.collapsed&&(!d||Wt(d.marker,w)<0)&&(d=T)}else T.from>h&&v>T.from&&(v=T.from)}if(b)for(var S=0;S<b.length;S+=2)b[S+1]==v&&(u+=" "+b[S]);if(!d||d.from==h)for(var x=0;x<y.length;++x)Tn(t,0,y[x]);if(d&&(d.from||0)==h){if(Tn(t,(null==d.to?p+1:d.to)-h,d.marker,null==d.from),null==d.to)return;d.to==h&&(d=!1)}}if(h>=p)break;for(var k=Math.min(p,v);;){if(g){var N=h+g.length;if(!d){var _=N>k?g.slice(0,k-h):g;t.addToken(t,_,a?a+l:l,c,h+_.length==v?u:"",s,f)}if(N>=k){g=g.slice(k-h),h=k;break}h=N,c=""}g=i.slice(o,o=n[m++]),a=mn(n[m++],t.cm.options)}}else for(var O=1;O<n.length;O+=2)t.addToken(t,i.slice(o,o=n[O]),mn(n[O+1],t.cm.options))}function Cn(e,t,n){this.line=t,this.rest=tn(t),this.size=this.rest?nt(X(this.rest))-n+1:1,this.node=this.text=null,this.hidden=on(e,t)}function Sn(e,t,n){for(var r,i=[],o=t;o<n;o=r){var a=new Cn(e.doc,Je(e.doc,o),o);r=o+a.size,i.push(a)}return i}r(mn,"interpretTokenStyle"),r(gn,"buildLineContent"),r(vn,"defaultSpecialCharPlaceholder"),r(yn,"buildToken"),r(bn,"splitSpaces"),r(En,"buildTokenBadBidi"),r(Tn,"buildCollapsedSpan"),r(wn,"insertLineContent"),r(Cn,"LineView"),r(Sn,"buildViewArray");var xn=null;function kn(e){xn?xn.ops.push(e):e.ownsGroup=xn={ops:[e],delayedCallbacks:[]}}function Nn(e){var t=e.delayedCallbacks,n=0;do{for(;n<t.length;n++)t[n].call(null);for(var r=0;r<e.ops.length;r++){var i=e.ops[r];if(i.cursorActivityHandlers)for(;i.cursorActivityCalled<i.cursorActivityHandlers.length;)i.cursorActivityHandlers[i.cursorActivityCalled++].call(null,i.cm)}}while(n<t.length)}function _n(e,t){var n=e.ownsGroup;if(n)try{Nn(n)}finally{xn=null,t(n)}}r(kn,"pushOperation"),r(Nn,"fireCallbacksForOps"),r(_n,"finishOperation");var On=null;function In(e,t){var n=ge(e,t);if(n.length){var i,o=Array.prototype.slice.call(arguments,2);xn?i=xn.delayedCallbacks:On?i=On:(i=On=[],setTimeout(Dn,0));for(var a=r((function(e){i.push((function(){return n[e].apply(null,o)}))}),"loop"),s=0;s<n.length;++s)a(s)}}function Dn(){var e=On;On=null;for(var t=0;t<e.length;++t)e[t]()}function Ln(e,t,n,r){for(var i=0;i<t.changes.length;i++){var o=t.changes[i];"text"==o?Fn(e,t):"gutter"==o?jn(e,t,n,r):"class"==o?Pn(e,t):"widget"==o&&Vn(e,t,r)}t.changes=null}function An(e){return e.node==e.text&&(e.node=I("div",null,null,"position: relative"),e.text.parentNode&&e.text.parentNode.replaceChild(e.node,e.text),e.node.appendChild(e.text),s&&l<8&&(e.node.style.zIndex=2)),e.node}function Mn(e,t){var n=t.bgClass?t.bgClass+" "+(t.line.bgClass||""):t.line.bgClass;if(n&&(n+=" CodeMirror-linebackground"),t.background)n?t.background.className=n:(t.background.parentNode.removeChild(t.background),t.background=null);else if(n){var r=An(t);t.background=r.insertBefore(I("div",null,n),r.firstChild),e.display.input.setUneditable(t.background)}}function Rn(e,t){var n=e.display.externalMeasured;return n&&n.line==t.line?(e.display.externalMeasured=null,t.measure=n.measure,n.built):gn(e,t)}function Fn(e,t){var n=t.text.className,r=Rn(e,t);t.text==t.node&&(t.node=r.pre),t.text.parentNode.replaceChild(r.pre,t.text),t.text=r.pre,r.bgClass!=t.bgClass||r.textClass!=t.textClass?(t.bgClass=r.bgClass,t.textClass=r.textClass,Pn(e,t)):n&&(t.text.className=n)}function Pn(e,t){Mn(e,t),t.line.wrapClass?An(t).className=t.line.wrapClass:t.node!=t.text&&(t.node.className="");var n=t.textClass?t.textClass+" "+(t.line.textClass||""):t.line.textClass;t.text.className=n||""}function jn(e,t,n,r){if(t.gutter&&(t.node.removeChild(t.gutter),t.gutter=null),t.gutterBackground&&(t.node.removeChild(t.gutterBackground),t.gutterBackground=null),t.line.gutterClass){var i=An(t);t.gutterBackground=I("div",null,"CodeMirror-gutter-background "+t.line.gutterClass,"left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px; width: "+r.gutterTotalWidth+"px"),e.display.input.setUneditable(t.gutterBackground),i.insertBefore(t.gutterBackground,t.text)}var o=t.line.gutterMarkers;if(e.options.lineNumbers||o){var a=An(t),s=t.gutter=I("div",null,"CodeMirror-gutter-wrapper","left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px");if(s.setAttribute("aria-hidden","true"),e.display.input.setUneditable(s),a.insertBefore(s,t.text),t.line.gutterClass&&(s.className+=" "+t.line.gutterClass),!e.options.lineNumbers||o&&o["CodeMirror-linenumbers"]||(t.lineNumber=s.appendChild(I("div",ot(e.options,n),"CodeMirror-linenumber CodeMirror-gutter-elt","left: "+r.gutterLeft["CodeMirror-linenumbers"]+"px; width: "+e.display.lineNumInnerWidth+"px"))),o)for(var l=0;l<e.display.gutterSpecs.length;++l){var u=e.display.gutterSpecs[l].className,c=o.hasOwnProperty(u)&&o[u];c&&s.appendChild(I("div",[c],"CodeMirror-gutter-elt","left: "+r.gutterLeft[u]+"px; width: "+r.gutterWidth[u]+"px"))}}}function Vn(e,t,n){t.alignable&&(t.alignable=null);for(var r=x("CodeMirror-linewidget"),i=t.node.firstChild,o=void 0;i;i=o)o=i.nextSibling,r.test(i.className)&&t.node.removeChild(i);Bn(e,t,n)}function Un(e,t,n,r){var i=Rn(e,t);return t.text=t.node=i.pre,i.bgClass&&(t.bgClass=i.bgClass),i.textClass&&(t.textClass=i.textClass),Pn(e,t),jn(e,t,n,r),Bn(e,t,r),t.node}function Bn(e,t,n){if($n(e,t.line,t,n,!0),t.rest)for(var r=0;r<t.rest.length;r++)$n(e,t.rest[r],t,n,!1)}function $n(e,t,n,r,i){if(t.widgets)for(var o=An(n),a=0,s=t.widgets;a<s.length;++a){var l=s[a],u=I("div",[l.node],"CodeMirror-linewidget"+(l.className?" 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n=Ne(t);n!=e.wrapper;n=n.parentNode)if(!n||1==n.nodeType&&"true"==n.getAttribute("cm-ignore-events")||n.parentNode==e.sizer&&n!=e.mover)return!0}function zn(e){return e.lineSpace.offsetTop}function Wn(e){return e.mover.offsetHeight-e.lineSpace.offsetHeight}function Kn(e){if(e.cachedPaddingH)return e.cachedPaddingH;var t=O(e.measure,I("pre","x","CodeMirror-line-like")),n=window.getComputedStyle?window.getComputedStyle(t):t.currentStyle,r={left:parseInt(n.paddingLeft),right:parseInt(n.paddingRight)};return isNaN(r.left)||isNaN(r.right)||(e.cachedPaddingH=r),r}function Qn(e){return $-e.display.nativeBarWidth}function Xn(e){return e.display.scroller.clientWidth-Qn(e)-e.display.barWidth}function Yn(e){return e.display.scroller.clientHeight-Qn(e)-e.display.barHeight}function Jn(e,t,n){var r=e.options.lineWrapping,i=r&&Xn(e);if(!t.measure.heights||r&&t.measure.width!=i){var o=t.measure.heights=[];if(r){t.measure.width=i;for(var a=t.text.firstChild.getClientRects(),s=0;s<a.length-1;s++){var 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"+e+"px;\n                             top: "+t+"px; width: "+(null==n?u-e:n)+"px;\n                             height: "+(r-t)+"px"))}function f(t,n,i){var a,s,f=Je(o,t),p=f.text.length;function h(n,r){return br(e,at(t,n),"div",f,r)}function m(t,n,r){var i=xr(e,f,null,t),o="ltr"==n==("after"==r)?"left":"right";return h("after"==r?i.begin:i.end-(/\s/.test(f.text.charAt(i.end-1))?2:1),o)[o]}r(h,"coords"),r(m,"wrapX");var g=pe(f,o.direction);return ue(g,n||0,null==i?p:i,(function(e,t,r,o){var f="ltr"==r,v=h(e,f?"left":"right"),y=h(t-1,f?"right":"left"),b=null==n&&0==e,E=null==i&&t==p,T=0==o,w=!g||o==g.length-1;if(y.top-v.top<=3){var C=(c?E:b)&&w,S=(c?b:E)&&T?l:(f?v:y).left,x=C?u:(f?y:v).right;d(S,v.top,x-S,v.bottom)}else{var k,N,_,O;f?(k=c&&b&&T?l:v.left,N=c?u:m(e,r,"before"),_=c?l:m(t,r,"after"),O=c&&E&&w?u:y.right):(k=c?m(e,r,"before"):l,N=!c&&b&&T?u:v.right,_=!c&&E&&w?l:y.left,O=c?m(t,r,"after"):u),d(k,v.top,N-k,v.bottom),v.bottom<y.top&&d(l,v.bottom,null,y.top),d(_,y.top,O-_,y.bottom)}(!a||Wr(v,a)<0)&&(a=v),Wr(y,a)<0&&(a=y),(!s||Wr(v,s)<0)&&(s=v),Wr(y,s)<0&&(s=y)})),{start:a,end:s}}r(d,"add"),r(f,"drawForLine");var p=t.from(),h=t.to();if(p.line==h.line)f(p.line,p.ch,h.ch);else{var m=Je(o,p.line),g=Je(o,h.line),v=Zt(m)==Zt(g),y=f(p.line,p.ch,v?m.text.length+1:null).end,b=f(h.line,v?0:null,h.ch).start;v&&(y.top<b.top-2?(d(y.right,y.top,null,y.bottom),d(l,b.top,b.left,b.bottom)):d(y.right,y.top,b.left-y.right,y.bottom)),y.bottom<b.top&&d(l,y.bottom,null,b.top)}n.appendChild(a)}function Qr(e){if(e.state.focused){var t=e.display;clearInterval(t.blinker);var n=!0;t.cursorDiv.style.visibility="",e.options.cursorBlinkRate>0?t.blinker=setInterval((function(){e.hasFocus()||Zr(e),t.cursorDiv.style.visibility=(n=!n)?"":"hidden"}),e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function Xr(e){e.hasFocus()||(e.display.input.focus(),e.state.focused||Jr(e))}function Yr(e){e.state.delayingBlurEvent=!0,setTimeout((function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,e.state.focused&&Zr(e))}),100)}function Jr(e,t){e.state.delayingBlurEvent&&!e.state.draggingText&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(ye(e,"focus",e,t),e.state.focused=!0,M(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),u&&setTimeout((function(){return e.display.input.reset(!0)}),20)),e.display.input.receivedFocus()),Qr(e))}function Zr(e,t){e.state.delayingBlurEvent||(e.state.focused&&(ye(e,"blur",e,t),e.state.focused=!1,N(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout((function(){e.state.focused||(e.display.shift=!1)}),150))}function ei(e){for(var t=e.display,n=t.lineDiv.offsetTop,r=Math.max(0,t.scroller.getBoundingClientRect().top),i=t.lineDiv.getBoundingClientRect().top,o=0,a=0;a<t.view.length;a++){var u=t.view[a],c=e.options.lineWrapping,d=void 0,f=0;if(!u.hidden){if(i+=u.line.height,s&&l<8){var p=u.node.offsetTop+u.node.offsetHeight;d=p-n,n=p}else{var h=u.node.getBoundingClientRect();d=h.bottom-h.top,!c&&u.text.firstChild&&(f=u.text.firstChild.getBoundingClientRect().right-h.left-1)}var m=u.line.height-d;if((m>.005||m<-.005)&&(i<r&&(o-=m),tt(u.line,d),ti(u.line),u.rest))for(var g=0;g<u.rest.length;g++)ti(u.rest[g]);if(f>e.display.sizerWidth){var v=Math.ceil(f/Dr(e.display));v>e.display.maxLineLength&&(e.display.maxLineLength=v,e.display.maxLine=u.line,e.display.maxLineChanged=!0)}}}Math.abs(o)>2&&(t.scroller.scrollTop+=o)}function ti(e){if(e.widgets)for(var t=0;t<e.widgets.length;++t){var n=e.widgets[t],r=n.node.parentNode;r&&(n.height=r.offsetHeight)}}function ni(e,t,n){var r=n&&null!=n.top?Math.max(0,n.top):e.scroller.scrollTop;r=Math.floor(r-zn(e));var i=n&&null!=n.bottom?n.bottom:r+e.wrapper.clientHeight,o=rt(t,r),a=rt(t,i);if(n&&n.ensure){var s=n.ensure.from.line,l=n.ensure.to.line;s<o?(o=s,a=rt(t,sn(Je(t,s))+e.wrapper.clientHeight)):Math.min(l,t.lastLine())>=a&&(o=rt(t,sn(Je(t,l))-e.wrapper.clientHeight),a=l)}return{from:o,to:Math.max(a,o+1)}}function ri(e,t){if(!be(e,"scrollCursorIntoView")){var n=e.display,r=n.sizer.getBoundingClientRect(),i=null;if(t.top+r.top<0?i=!0:t.bottom+r.top>(window.innerHeight||document.documentElement.clientHeight)&&(i=!1),null!=i&&!m){var o=I("div","​",null,"position: absolute;\n                         top: "+(t.top-n.viewOffset-zn(e.display))+"px;\n                         height: "+(t.bottom-t.top+Qn(e)+n.barHeight)+"px;\n                         left: "+t.left+"px; width: "+Math.max(2,t.right-t.left)+"px;");e.display.lineSpace.appendChild(o),o.scrollIntoView(i),e.display.lineSpace.removeChild(o)}}}function ii(e,t,n,r){var i;null==r&&(r=0),e.options.lineWrapping||t!=n||(n="before"==t.sticky?at(t.line,t.ch+1,"before"):t,t=t.ch?at(t.line,"before"==t.sticky?t.ch-1:t.ch,"after"):t);for(var o=0;o<5;o++){var a=!1,s=Er(e,t),l=n&&n!=t?Er(e,n):s,u=ai(e,i={left:Math.min(s.left,l.left),top:Math.min(s.top,l.top)-r,right:Math.max(s.left,l.left),bottom:Math.max(s.bottom,l.bottom)+r}),c=e.doc.scrollTop,d=e.doc.scrollLeft;if(null!=u.scrollTop&&(pi(e,u.scrollTop),Math.abs(e.doc.scrollTop-c)>1&&(a=!0)),null!=u.scrollLeft&&(mi(e,u.scrollLeft),Math.abs(e.doc.scrollLeft-d)>1&&(a=!0)),!a)break}return i}function oi(e,t){var n=ai(e,t);null!=n.scrollTop&&pi(e,n.scrollTop),null!=n.scrollLeft&&mi(e,n.scrollLeft)}function ai(e,t){var n=e.display,r=Ir(e.display);t.top<0&&(t.top=0);var i=e.curOp&&null!=e.curOp.scrollTop?e.curOp.scrollTop:n.scroller.scrollTop,o=Yn(e),a={};t.bottom-t.top>o&&(t.bottom=t.top+o);var s=e.doc.height+Wn(n),l=t.top<r,u=t.bottom>s-r;if(t.top<i)a.scrollTop=l?0:t.top;else if(t.bottom>i+o){var c=Math.min(t.top,(u?s:t.bottom)-o);c!=i&&(a.scrollTop=c)}var d=e.options.fixedGutter?0:n.gutters.offsetWidth,f=e.curOp&&null!=e.curOp.scrollLeft?e.curOp.scrollLeft:n.scroller.scrollLeft-d,p=Xn(e)-n.gutters.offsetWidth,h=t.right-t.left>p;return h&&(t.right=t.left+p),t.left<10?a.scrollLeft=0:t.left<f?a.scrollLeft=Math.max(0,t.left+d-(h?0:10)):t.right>p+f-3&&(a.scrollLeft=t.right+(h?0:10)-p),a}function si(e,t){null!=t&&(di(e),e.curOp.scrollTop=(null==e.curOp.scrollTop?e.doc.scrollTop:e.curOp.scrollTop)+t)}function li(e){di(e);var t=e.getCursor();e.curOp.scrollToPos={from:t,to:t,margin:e.options.cursorScrollMargin}}function ui(e,t,n){null==t&&null==n||di(e),null!=t&&(e.curOp.scrollLeft=t),null!=n&&(e.curOp.scrollTop=n)}function ci(e,t){di(e),e.curOp.scrollToPos=t}function di(e){var t=e.curOp.scrollToPos;t&&(e.curOp.scrollToPos=null,fi(e,Tr(e,t.from),Tr(e,t.to),t.margin))}function fi(e,t,n,r){var i=ai(e,{left:Math.min(t.left,n.left),top:Math.min(t.top,n.top)-r,right:Math.max(t.right,n.right),bottom:Math.max(t.bottom,n.bottom)+r});ui(e,i.scrollLeft,i.scrollTop)}function pi(e,t){Math.abs(e.doc.scrollTop-t)<2||(n||Hi(e,{top:t}),hi(e,t,!0),n&&Hi(e),Fi(e,100))}function hi(e,t,n){t=Math.max(0,Math.min(e.display.scroller.scrollHeight-e.display.scroller.clientHeight,t)),(e.display.scroller.scrollTop!=t||n)&&(e.doc.scrollTop=t,e.display.scrollbars.setScrollTop(t),e.display.scroller.scrollTop!=t&&(e.display.scroller.scrollTop=t))}function mi(e,t,n,r){t=Math.max(0,Math.min(t,e.display.scroller.scrollWidth-e.display.scroller.clientWidth)),(n?t==e.doc.scrollLeft:Math.abs(e.doc.scrollLeft-t)<2)&&!r||(e.doc.scrollLeft=t,Ki(e),e.display.scroller.scrollLeft!=t&&(e.display.scroller.scrollLeft=t),e.display.scrollbars.setScrollLeft(t))}function gi(e){var t=e.display,n=t.gutters.offsetWidth,r=Math.round(e.doc.height+Wn(e.display));return{clientHeight:t.scroller.clientHeight,viewHeight:t.wrapper.clientHeight,scrollWidth:t.scroller.scrollWidth,clientWidth:t.scroller.clientWidth,viewWidth:t.wrapper.clientWidth,barLeft:e.options.fixedGutter?n:0,docHeight:r,scrollHeight:r+Qn(e)+t.barHeight,nativeBarWidth:t.nativeBarWidth,gutterWidth:n}}r(sr,"nodeAndOffsetInLineMap"),r(lr,"getUsefulRect"),r(ur,"measureCharInner"),r(cr,"maybeUpdateRectForZooming"),r(dr,"clearLineMeasurementCacheFor"),r(fr,"clearLineMeasurementCache"),r(pr,"clearCaches"),r(hr,"pageScrollX"),r(mr,"pageScrollY"),r(gr,"widgetTopHeight"),r(vr,"intoCoordSystem"),r(yr,"fromCoordSystem"),r(br,"charCoords"),r(Er,"cursorCoords"),r(Tr,"estimateCoords"),r(wr,"PosWithInfo"),r(Cr,"coordsChar"),r(Sr,"wrappedLineExtent"),r(xr,"wrappedLineExtentChar"),r(kr,"boxIsAfter"),r(Nr,"coordsCharInner"),r(_r,"coordsBidiPart"),r(Or,"coordsBidiPartWrapped"),r(Ir,"textHeight"),r(Dr,"charWidth"),r(Lr,"getDimensions"),r(Ar,"compensateForHScroll"),r(Mr,"estimateHeight"),r(Rr,"estimateLineHeights"),r(Fr,"posFromMouse"),r(Pr,"findViewIndex"),r(jr,"regChange"),r(Vr,"regLineChange"),r(Ur,"resetView"),r(Br,"viewCuttingPoint"),r($r,"adjustView"),r(qr,"countDirtyView"),r(Hr,"updateSelection"),r(Gr,"prepareSelection"),r(zr,"drawSelectionCursor"),r(Wr,"cmpCoords"),r(Kr,"drawSelectionRange"),r(Qr,"restartBlink"),r(Xr,"ensureFocus"),r(Yr,"delayBlurEvent"),r(Jr,"onFocus"),r(Zr,"onBlur"),r(ei,"updateHeightsInViewport"),r(ti,"updateWidgetHeight"),r(ni,"visibleLines"),r(ri,"maybeScrollWindow"),r(ii,"scrollPosIntoView"),r(oi,"scrollIntoView"),r(ai,"calculateScrollPos"),r(si,"addToScrollTop"),r(li,"ensureCursorVisible"),r(ui,"scrollToCoords"),r(ci,"scrollToRange"),r(di,"resolveScrollToPos"),r(fi,"scrollToCoordsRange"),r(pi,"updateScrollTop"),r(hi,"setScrollTop"),r(mi,"setScrollLeft"),r(gi,"measureForScrollbars");var vi=r((function(e,t,n){this.cm=n;var r=this.vert=I("div",[I("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),i=this.horiz=I("div",[I("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");r.tabIndex=i.tabIndex=-1,e(r),e(i),me(r,"scroll",(function(){r.clientHeight&&t(r.scrollTop,"vertical")})),me(i,"scroll",(function(){i.clientWidth&&t(i.scrollLeft,"horizontal")})),this.checkedZeroWidth=!1,s&&l<8&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")}),"NativeScrollbars");vi.prototype.update=function(e){var t=e.scrollWidth>e.clientWidth+1,n=e.scrollHeight>e.clientHeight+1,r=e.nativeBarWidth;if(n){this.vert.style.display="block",this.vert.style.bottom=t?r+"px":"0";var i=e.viewHeight-(t?r:0);this.vert.firstChild.style.height=Math.max(0,e.scrollHeight-e.clientHeight+i)+"px"}else this.vert.scrollTop=0,this.vert.style.display="",this.vert.firstChild.style.height="0";if(t){this.horiz.style.display="block",this.horiz.style.right=n?r+"px":"0",this.horiz.style.left=e.barLeft+"px";var o=e.viewWidth-e.barLeft-(n?r:0);this.horiz.firstChild.style.width=Math.max(0,e.scrollWidth-e.clientWidth+o)+"px"}else this.horiz.style.display="",this.horiz.firstChild.style.width="0";return!this.checkedZeroWidth&&e.clientHeight>0&&(0==r&&this.zeroWidthHack(),this.checkedZeroWidth=!0),{right:n?r:0,bottom:t?r:0}},vi.prototype.setScrollLeft=function(e){this.horiz.scrollLeft!=e&&(this.horiz.scrollLeft=e),this.disableHoriz&&this.enableZeroWidthBar(this.horiz,this.disableHoriz,"horiz")},vi.prototype.setScrollTop=function(e){this.vert.scrollTop!=e&&(this.vert.scrollTop=e),this.disableVert&&this.enableZeroWidthBar(this.vert,this.disableVert,"vert")},vi.prototype.zeroWidthHack=function(){var e=b&&!h?"12px":"18px";this.horiz.style.height=this.vert.style.width=e,this.horiz.style.pointerEvents=this.vert.style.pointerEvents="none",this.disableHoriz=new U,this.disableVert=new U},vi.prototype.enableZeroWidthBar=function(e,t,n){function i(){var r=e.getBoundingClientRect();("vert"==n?document.elementFromPoint(r.right-1,(r.top+r.bottom)/2):document.elementFromPoint((r.right+r.left)/2,r.bottom-1))!=e?e.style.pointerEvents="none":t.set(1e3,i)}e.style.pointerEvents="auto",r(i,"maybeDisable"),t.set(1e3,i)},vi.prototype.clear=function(){var e=this.horiz.parentNode;e.removeChild(this.horiz),e.removeChild(this.vert)};var yi=r((function(){}),"NullScrollbars");function bi(e,t){t||(t=gi(e));var n=e.display.barWidth,r=e.display.barHeight;Ei(e,t);for(var i=0;i<4&&n!=e.display.barWidth||r!=e.display.barHeight;i++)n!=e.display.barWidth&&e.options.lineWrapping&&ei(e),Ei(e,gi(e)),n=e.display.barWidth,r=e.display.barHeight}function Ei(e,t){var n=e.display,r=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=r.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=r.bottom)+"px",n.heightForcer.style.borderBottom=r.bottom+"px solid transparent",r.right&&r.bottom?(n.scrollbarFiller.style.display="block",n.scrollbarFiller.style.height=r.bottom+"px",n.scrollbarFiller.style.width=r.right+"px"):n.scrollbarFiller.style.display="",r.bottom&&e.options.coverGutterNextToScrollbar&&e.options.fixedGutter?(n.gutterFiller.style.display="block",n.gutterFiller.style.height=r.bottom+"px",n.gutterFiller.style.width=t.gutterWidth+"px"):n.gutterFiller.style.display=""}yi.prototype.update=function(){return{bottom:0,right:0}},yi.prototype.setScrollLeft=function(){},yi.prototype.setScrollTop=function(){},yi.prototype.clear=function(){},r(bi,"updateScrollbars"),r(Ei,"updateScrollbarsInner");var Ti={native:vi,null:yi};function wi(e){e.display.scrollbars&&(e.display.scrollbars.clear(),e.display.scrollbars.addClass&&N(e.display.wrapper,e.display.scrollbars.addClass)),e.display.scrollbars=new Ti[e.options.scrollbarStyle]((function(t){e.display.wrapper.insertBefore(t,e.display.scrollbarFiller),me(t,"mousedown",(function(){e.state.focused&&setTimeout((function(){return e.display.input.focus()}),0)})),t.setAttribute("cm-not-content","true")}),(function(t,n){"horizontal"==n?mi(e,t):pi(e,t)}),e),e.display.scrollbars.addClass&&M(e.display.wrapper,e.display.scrollbars.addClass)}r(wi,"initScrollbars");var Ci=0;function Si(e){e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:0,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++Ci,markArrays:null},kn(e.curOp)}function xi(e){var t=e.curOp;t&&_n(t,(function(e){for(var t=0;t<e.ops.length;t++)e.ops[t].cm.curOp=null;ki(e)}))}function ki(e){for(var t=e.ops,n=0;n<t.length;n++)Ni(t[n]);for(var r=0;r<t.length;r++)_i(t[r]);for(var i=0;i<t.length;i++)Oi(t[i]);for(var o=0;o<t.length;o++)Ii(t[o]);for(var a=0;a<t.length;a++)Di(t[a])}function Ni(e){var t=e.cm,n=t.display;Vi(t),e.updateMaxLine&&un(t),e.mustUpdate=e.viewChanged||e.forceUpdate||null!=e.scrollTop||e.scrollToPos&&(e.scrollToPos.from.line<n.viewFrom||e.scrollToPos.to.line>=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new ji(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}function _i(e){e.updatedDisplay=e.mustUpdate&&$i(e.cm,e.update)}function Oi(e){var t=e.cm,n=t.display;e.updatedDisplay&&ei(t),e.barMeasure=gi(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=tr(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+Qn(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-Xn(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection())}function Ii(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeft<t.doc.scrollLeft&&mi(t,Math.min(t.display.scroller.scrollLeft,e.maxScrollLeft),!0),t.display.maxLineChanged=!1);var n=e.focus&&e.focus==A();e.preparedSelection&&t.display.input.showSelection(e.preparedSelection,n),(e.updatedDisplay||e.startHeight!=t.doc.height)&&bi(t,e.barMeasure),e.updatedDisplay&&Wi(t,e.barMeasure),e.selectionChanged&&Qr(t),t.state.focused&&e.updateInput&&t.display.input.reset(e.typing),n&&Xr(e.cm)}function Di(e){var t=e.cm,n=t.display,r=t.doc;e.updatedDisplay&&qi(t,e.update),null==n.wheelStartX||null==e.scrollTop&&null==e.scrollLeft&&!e.scrollToPos||(n.wheelStartX=n.wheelStartY=null),null!=e.scrollTop&&hi(t,e.scrollTop,e.forceScroll),null!=e.scrollLeft&&mi(t,e.scrollLeft,!0,!0),e.scrollToPos&&ri(t,ii(t,pt(r,e.scrollToPos.from),pt(r,e.scrollToPos.to),e.scrollToPos.margin));var i=e.maybeHiddenMarkers,o=e.maybeUnhiddenMarkers;if(i)for(var a=0;a<i.length;++a)i[a].lines.length||ye(i[a],"hide");if(o)for(var s=0;s<o.length;++s)o[s].lines.length&&ye(o[s],"unhide");n.wrapper.offsetHeight&&(r.scrollTop=t.display.scroller.scrollTop),e.changeObjs&&ye(t,"changes",t,e.changeObjs),e.update&&e.update.finish()}function Li(e,t){if(e.curOp)return t();Si(e);try{return t()}finally{xi(e)}}function Ai(e,t){return function(){if(e.curOp)return t.apply(e,arguments);Si(e);try{return t.apply(e,arguments)}finally{xi(e)}}}function Mi(e){return function(){if(this.curOp)return e.apply(this,arguments);Si(this);try{return e.apply(this,arguments)}finally{xi(this)}}}function Ri(e){return function(){var t=this.cm;if(!t||t.curOp)return e.apply(this,arguments);Si(t);try{return e.apply(this,arguments)}finally{xi(t)}}}function Fi(e,t){e.doc.highlightFrontier<e.display.viewTo&&e.state.highlight.set(t,P(Pi,e))}function Pi(e){var t=e.doc;if(!(t.highlightFrontier>=e.display.viewTo)){var n=+new Date+e.options.workTime,r=Et(e,t.highlightFrontier),i=[];t.iter(r.line,Math.min(t.first+t.size,e.display.viewTo+500),(function(o){if(r.line>=e.display.viewFrom){var a=o.styles,s=o.text.length>e.options.maxHighlightLength?Ke(t.mode,r.state):null,l=yt(e,o,r,!0);s&&(r.state=s),o.styles=l.styles;var u=o.styleClasses,c=l.classes;c?o.styleClasses=c:u&&(o.styleClasses=null);for(var d=!a||a.length!=o.styles.length||u!=c&&(!u||!c||u.bgClass!=c.bgClass||u.textClass!=c.textClass),f=0;!d&&f<a.length;++f)d=a[f]!=o.styles[f];d&&i.push(r.line),o.stateAfter=r.save(),r.nextLine()}else o.text.length<=e.options.maxHighlightLength&&Tt(e,o.text,r),o.stateAfter=r.line%5==0?r.save():null,r.nextLine();if(+new Date>n)return Fi(e,e.options.workDelay),!0})),t.highlightFrontier=r.line,t.modeFrontier=Math.max(t.modeFrontier,r.line),i.length&&Li(e,(function(){for(var t=0;t<i.length;t++)Vr(e,i[t],"text")}))}}r(Si,"startOperation"),r(xi,"endOperation"),r(ki,"endOperations"),r(Ni,"endOperation_R1"),r(_i,"endOperation_W1"),r(Oi,"endOperation_R2"),r(Ii,"endOperation_W2"),r(Di,"endOperation_finish"),r(Li,"runInOp"),r(Ai,"operation"),r(Mi,"methodOp"),r(Ri,"docMethodOp"),r(Fi,"startWorker"),r(Pi,"highlightWorker");var ji=r((function(e,t,n){var r=e.display;this.viewport=t,this.visible=ni(r,e.doc,t),this.editorIsHidden=!r.wrapper.offsetWidth,this.wrapperHeight=r.wrapper.clientHeight,this.wrapperWidth=r.wrapper.clientWidth,this.oldDisplayWidth=Xn(e),this.force=n,this.dims=Lr(e),this.events=[]}),"DisplayUpdate");function Vi(e){var t=e.display;!t.scrollbarsClipped&&t.scroller.offsetWidth&&(t.nativeBarWidth=t.scroller.offsetWidth-t.scroller.clientWidth,t.heightForcer.style.height=Qn(e)+"px",t.sizer.style.marginBottom=-t.nativeBarWidth+"px",t.sizer.style.borderRightWidth=Qn(e)+"px",t.scrollbarsClipped=!0)}function Ui(e){if(e.hasFocus())return null;var t=A();if(!t||!L(e.display.lineDiv,t))return null;var n={activeElt:t};if(window.getSelection){var r=window.getSelection();r.anchorNode&&r.extend&&L(e.display.lineDiv,r.anchorNode)&&(n.anchorNode=r.anchorNode,n.anchorOffset=r.anchorOffset,n.focusNode=r.focusNode,n.focusOffset=r.focusOffset)}return n}function Bi(e){if(e&&e.activeElt&&e.activeElt!=A()&&(e.activeElt.focus(),!/^(INPUT|TEXTAREA)$/.test(e.activeElt.nodeName)&&e.anchorNode&&L(document.body,e.anchorNode)&&L(document.body,e.focusNode))){var t=window.getSelection(),n=document.createRange();n.setEnd(e.anchorNode,e.anchorOffset),n.collapse(!1),t.removeAllRanges(),t.addRange(n),t.extend(e.focusNode,e.focusOffset)}}function $i(e,t){var n=e.display,r=e.doc;if(t.editorIsHidden)return Ur(e),!1;if(!t.force&&t.visible.from>=n.viewFrom&&t.visible.to<=n.viewTo&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo)&&n.renderedView==n.view&&0==qr(e))return!1;Qi(e)&&(Ur(e),t.dims=Lr(e));var i=r.first+r.size,o=Math.max(t.visible.from-e.options.viewportMargin,r.first),a=Math.min(i,t.visible.to+e.options.viewportMargin);n.viewFrom<o&&o-n.viewFrom<20&&(o=Math.max(r.first,n.viewFrom)),n.viewTo>a&&n.viewTo-a<20&&(a=Math.min(i,n.viewTo)),Dt&&(o=nn(e.doc,o),a=rn(e.doc,a));var s=o!=n.viewFrom||a!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;$r(e,o,a),n.viewOffset=sn(Je(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";var l=qr(e);if(!s&&0==l&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;var u=Ui(e);return l>4&&(n.lineDiv.style.display="none"),Gi(e,n.updateLineNumbers,t.dims),l>4&&(n.lineDiv.style.display=""),n.renderedView=n.view,Bi(u),_(n.cursorDiv),_(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,s&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,Fi(e,400)),n.updateLineNumbers=null,!0}function qi(e,t){for(var n=t.viewport,r=!0;;r=!1){if(r&&e.options.lineWrapping&&t.oldDisplayWidth!=Xn(e))r&&(t.visible=ni(e.display,e.doc,n));else if(n&&null!=n.top&&(n={top:Math.min(e.doc.height+Wn(e.display)-Yn(e),n.top)}),t.visible=ni(e.display,e.doc,n),t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)break;if(!$i(e,t))break;ei(e);var i=gi(e);Hr(e),bi(e,i),Wi(e,i),t.force=!1}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function Hi(e,t){var n=new ji(e,t);if($i(e,n)){ei(e),qi(e,n);var r=gi(e);Hr(e),bi(e,r),Wi(e,r),n.finish()}}function Gi(e,t,n){var i=e.display,o=e.options.lineNumbers,a=i.lineDiv,s=a.firstChild;function l(t){var n=t.nextSibling;return u&&b&&e.display.currentWheelTarget==t?t.style.display="none":t.parentNode.removeChild(t),n}r(l,"rm");for(var c=i.view,d=i.viewFrom,f=0;f<c.length;f++){var p=c[f];if(p.hidden);else if(p.node&&p.node.parentNode==a){for(;s!=p.node;)s=l(s);var h=o&&null!=t&&t<=d&&p.lineNumber;p.changes&&(B(p.changes,"gutter")>-1&&(h=!1),Ln(e,p,d,n)),h&&(_(p.lineNumber),p.lineNumber.appendChild(document.createTextNode(ot(e.options,d)))),s=p.node.nextSibling}else{var m=Un(e,p,d,n);a.insertBefore(m,s)}d+=p.size}for(;s;)s=l(s)}function zi(e){var t=e.gutters.offsetWidth;e.sizer.style.marginLeft=t+"px",In(e,"gutterChanged",e)}function Wi(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+Qn(e)+"px"}function Ki(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=Ar(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",a=0;a<n.length;a++)if(!n[a].hidden){e.options.fixedGutter&&(n[a].gutter&&(n[a].gutter.style.left=o),n[a].gutterBackground&&(n[a].gutterBackground.style.left=o));var s=n[a].alignable;if(s)for(var l=0;l<s.length;l++)s[l].style.left=o}e.options.fixedGutter&&(t.gutters.style.left=r+i+"px")}}function Qi(e){if(!e.options.lineNumbers)return!1;var t=e.doc,n=ot(e.options,t.first+t.size-1),r=e.display;if(n.length!=r.lineNumChars){var i=r.measure.appendChild(I("div",[I("div",n)],"CodeMirror-linenumber CodeMirror-gutter-elt")),o=i.firstChild.offsetWidth,a=i.offsetWidth-o;return r.lineGutter.style.width="",r.lineNumInnerWidth=Math.max(o,r.lineGutter.offsetWidth-a)+1,r.lineNumWidth=r.lineNumInnerWidth+a,r.lineNumChars=r.lineNumInnerWidth?n.length:-1,r.lineGutter.style.width=r.lineNumWidth+"px",zi(e.display),!0}return!1}function Xi(e,t){for(var n=[],r=!1,i=0;i<e.length;i++){var o=e[i],a=null;if("string"!=typeof 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e=0;e<this.events.length;e++)ye.apply(null,this.events[e])},r(Vi,"maybeClipScrollbars"),r(Ui,"selectionSnapshot"),r(Bi,"restoreSelection"),r($i,"updateDisplayIfNeeded"),r(qi,"postUpdateDisplay"),r(Hi,"updateDisplaySimple"),r(Gi,"patchDisplay"),r(zi,"updateGutterSpace"),r(Wi,"setDocumentHeight"),r(Ki,"alignHorizontally"),r(Qi,"maybeUpdateLineNumberWidth"),r(Xi,"getGutters"),r(Yi,"renderGutters"),r(Ji,"updateGutters"),r(Zi,"Display");var eo=0,to=null;function no(e){var t=e.wheelDeltaX,n=e.wheelDeltaY;return null==t&&e.detail&&e.axis==e.HORIZONTAL_AXIS&&(t=e.detail),null==n&&e.detail&&e.axis==e.VERTICAL_AXIS?n=e.detail:null==n&&(n=e.wheelDelta),{x:t,y:n}}function ro(e){var t=no(e);return t.x*=to,t.y*=to,t}function io(e,t){var r=no(t),i=r.x,o=r.y,a=to;0===t.deltaMode&&(i=t.deltaX,o=t.deltaY,a=1);var s=e.display,l=s.scroller,c=l.scrollWidth>l.clientWidth,d=l.scrollHeight>l.clientHeight;if(i&&c||o&&d){if(o&&b&&u)e:for(var p=t.target,h=s.view;p!=l;p=p.parentNode)for(var m=0;m<h.length;m++)if(h[m].node==p){e.display.currentWheelTarget=p;break e}if(i&&!n&&!f&&null!=a)return o&&d&&pi(e,Math.max(0,l.scrollTop+o*a)),mi(e,Math.max(0,l.scrollLeft+i*a)),(!o||o&&d)&&Ce(t),void(s.wheelStartX=null);if(o&&null!=a){var g=o*a,v=e.doc.scrollTop,y=v+s.wrapper.clientHeight;g<0?v=Math.max(0,v+g-50):y=Math.min(e.doc.height,y+g+50),Hi(e,{top:v,bottom:y})}eo<20&&0!==t.deltaMode&&(null==s.wheelStartX?(s.wheelStartX=l.scrollLeft,s.wheelStartY=l.scrollTop,s.wheelDX=i,s.wheelDY=o,setTimeout((function(){if(null!=s.wheelStartX){var e=l.scrollLeft-s.wheelStartX,t=l.scrollTop-s.wheelStartY,n=t&&s.wheelDY&&t/s.wheelDY||e&&s.wheelDX&&e/s.wheelDX;s.wheelStartX=s.wheelStartY=null,n&&(to=(to*eo+n)/(eo+1),++eo)}}),200)):(s.wheelDX+=i,s.wheelDY+=o))}}s?to=-.53:n?to=15:d?to=-.7:p&&(to=-1/3),r(no,"wheelEventDelta"),r(ro,"wheelEventPixels"),r(io,"onScrollWheel");var oo=r((function(e,t){this.ranges=e,this.primIndex=t}),"Selection");oo.prototype.primary=function(){return 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a=t[o],s=t[o-1],l=st(s.to(),a.from());if(r&&!a.empty()?l>0:l>=0){var u=dt(s.from(),a.from()),c=ct(s.to(),a.to()),d=s.empty()?a.from()==a.head:s.from()==s.head;o<=n&&--n,t.splice(--o,2,new ao(d?c:u,d?u:c))}}return new oo(t,n)}function lo(e,t){return new oo([new ao(e,t||e)],0)}function uo(e){return e.text?at(e.from.line+e.text.length-1,X(e.text).length+(1==e.text.length?e.from.ch:0)):e.to}function co(e,t){if(st(e,t.from)<0)return e;if(st(e,t.to)<=0)return uo(t);var n=e.line+t.text.length-(t.to.line-t.from.line)-1,r=e.ch;return e.line==t.to.line&&(r+=uo(t).ch-t.to.ch),at(n,r)}function fo(e,t){for(var n=[],r=0;r<e.sel.ranges.length;r++){var i=e.sel.ranges[r];n.push(new ao(co(i.anchor,t),co(i.head,t)))}return so(e.cm,n,e.sel.primIndex)}function po(e,t,n){return e.line==t.line?at(n.line,e.ch-t.ch+n.ch):at(n.line+(e.line-t.line),e.ch)}function ho(e,t,n){for(var r=[],i=at(e.first,0),o=i,a=0;a<t.length;a++){var s=t[a],l=po(s.from,i,o),u=po(uo(s),i,o);if(i=s.to,o=u,"around"==n){var c=e.sel.ranges[a],d=st(c.head,c.anchor)<0;r[a]=new ao(d?u:l,d?l:u)}else r[a]=new ao(l,l)}return new oo(r,e.sel.primIndex)}function mo(e){e.doc.mode=Ge(e.options,e.doc.modeOption),go(e)}function go(e){e.doc.iter((function(e){e.stateAfter&&(e.stateAfter=null),e.styles&&(e.styles=null)})),e.doc.modeFrontier=e.doc.highlightFrontier=e.doc.first,Fi(e,100),e.state.modeGen++,e.curOp&&jr(e)}function vo(e,t){return 0==t.from.ch&&0==t.to.ch&&""==X(t.text)&&(!e.cm||e.cm.options.wholeLineUpdateBefore)}function yo(e,t,n,i){function o(e){return n?n[e]:null}function a(e,n,r){dn(e,n,r,i),In(e,"change",e,t)}function s(e,t){for(var n=[],r=e;r<t;++r)n.push(new cn(c[r],o(r),i));return n}r(o,"spansFor"),r(a,"update"),r(s,"linesFor");var l=t.from,u=t.to,c=t.text,d=Je(e,l.line),f=Je(e,u.line),p=X(c),h=o(c.length-1),m=u.line-l.line;if(t.full)e.insert(0,s(0,c.length)),e.remove(c.length,e.size-c.length);else if(vo(e,t)){var g=s(0,c.length-1);a(f,f.text,h),m&&e.remove(l.line,m),g.length&&e.insert(l.line,g)}else 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this.lines.length},removeInner:function(e,t){for(var n=e,r=e+t;n<r;++n){var i=this.lines[n];this.height-=i.height,fn(i),In(i,"delete")}this.lines.splice(e,t)},collapse:function(e){e.push.apply(e,this.lines)},insertInner:function(e,t,n){this.height+=n,this.lines=this.lines.slice(0,e).concat(t).concat(this.lines.slice(e));for(var r=0;r<t.length;++r)t[r].parent=this},iterN:function(e,t,n){for(var r=e+t;e<r;++e)if(n(this.lines[e]))return!0}},r(da,"BranchChunk"),da.prototype={chunkSize:function(){return this.size},removeInner:function(e,t){this.size-=t;for(var n=0;n<this.children.length;++n){var r=this.children[n],i=r.chunkSize();if(e<i){var o=Math.min(t,i-e),a=r.height;if(r.removeInner(e,o),this.height-=a-r.height,i==o&&(this.children.splice(n--,1),r.parent=null),0==(t-=o))break;e=0}else e-=i}if(this.size-t<25&&(this.children.length>1||!(this.children[0]instanceof ca))){var s=[];this.collapse(s),this.children=[new ca(s)],this.children[0].parent=this}},collapse:function(e){for(var t=0;t<this.children.length;++t)this.children[t].collapse(e)},insertInner:function(e,t,n){this.size+=t.length,this.height+=n;for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<=o){if(i.insertInner(e,t,n),i.lines&&i.lines.length>50){for(var a=i.lines.length%25+25,s=a;s<i.lines.length;){var l=new ca(i.lines.slice(s,s+=25));i.height-=l.height,this.children.splice(++r,0,l),l.parent=this}i.lines=i.lines.slice(0,a),this.maybeSpill()}break}e-=o}},maybeSpill:function(){if(!(this.children.length<=10)){var e=this;do{var t=new da(e.children.splice(e.children.length-5,5));if(e.parent){e.size-=t.size,e.height-=t.height;var n=B(e.parent.children,e);e.parent.children.splice(n+1,0,t)}else{var r=new da(e.children);r.parent=e,e.children=[r,t],e=r}t.parent=e.parent}while(e.children.length>10);e.parent.maybeSpill()}},iterN:function(e,t,n){for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<o){var 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o=Hn(this);tt(n,Math.max(0,n.height-o)),e&&(Li(e,(function(){pa(e,n,-o),Vr(e,r,"widget")})),In(e,"lineWidgetCleared",e,this,r))}},fa.prototype.changed=function(){var e=this,t=this.height,n=this.doc.cm,r=this.line;this.height=null;var i=Hn(this)-t;i&&(on(this.doc,r)||tt(r,r.height+i),n&&Li(n,(function(){n.curOp.forceUpdate=!0,pa(n,r,i),In(n,"lineWidgetChanged",n,e,nt(r))})))},we(fa),r(pa,"adjustScrollWhenAboveVisible"),r(ha,"addLineWidget");var ma=0,ga=r((function(e,t){this.lines=[],this.type=t,this.doc=e,this.id=++ma}),"TextMarker");function va(e,t,n,r,i){if(r&&r.shared)return ba(e,t,n,r,i);if(e.cm&&!e.cm.curOp)return Ai(e.cm,va)(e,t,n,r,i);var o=new ga(e,i),a=st(t,n);if(r&&j(r,o,!1),a>0||0==a&&!1!==o.clearWhenEmpty)return o;if(o.replacedWith&&(o.collapsed=!0,o.widgetNode=D("span",[o.replacedWith],"CodeMirror-widget"),r.handleMouseEvents||o.widgetNode.setAttribute("cm-ignore-events","true"),r.insertLeft&&(o.widgetNode.insertLeft=!0)),o.collapsed){if(Jt(e,t.line,t,n,o)||t.line!=n.line&&Jt(e,n.line,t,n,o))throw new Error("Inserting collapsed marker partially overlapping an existing one");At()}o.addToHistory&&No(e,{from:t,to:n,origin:"markText"},e.sel,NaN);var s,l=t.line,u=e.cm;if(e.iter(l,n.line+1,(function(r){u&&o.collapsed&&!u.options.lineWrapping&&Zt(r)==u.display.maxLine&&(s=!0),o.collapsed&&l!=t.line&&tt(r,0),Pt(r,new Mt(o,l==t.line?t.ch:null,l==n.line?n.ch:null),e.cm&&e.cm.curOp),++l})),o.collapsed&&e.iter(t.line,n.line+1,(function(t){on(e,t)&&tt(t,0)})),o.clearOnEnter&&me(o,"beforeCursorEnter",(function(){return o.clear()})),o.readOnly&&(Lt(),(e.history.done.length||e.history.undone.length)&&e.clearHistory()),o.collapsed&&(o.id=++ma,o.atomic=!0),u){if(s&&(u.curOp.updateMaxLine=!0),o.collapsed)jr(u,t.line,n.line+1);else if(o.className||o.startStyle||o.endStyle||o.css||o.attributes||o.title)for(var c=t.line;c<=n.line;c++)Vr(u,c,"text");o.atomic&&zo(u.doc),In(u,"markerAdded",u,o)}return o}ga.prototype.clear=function(){if(!this.explicitlyCleared){var e=this.doc.cm,t=e&&!e.curOp;if(t&&Si(e),Te(this,"clear")){var n=this.find();n&&In(this,"clear",n.from,n.to)}for(var r=null,i=null,o=0;o<this.lines.length;++o){var a=this.lines[o],s=Rt(a.markedSpans,this);e&&!this.collapsed?Vr(e,nt(a),"text"):e&&(null!=s.to&&(i=nt(a)),null!=s.from&&(r=nt(a))),a.markedSpans=Ft(a.markedSpans,s),null==s.from&&this.collapsed&&!on(this.doc,a)&&e&&tt(a,Ir(e.display))}if(e&&this.collapsed&&!e.options.lineWrapping)for(var l=0;l<this.lines.length;++l){var u=Zt(this.lines[l]),c=ln(u);c>e.display.maxLineLength&&(e.display.maxLine=u,e.display.maxLineLength=c,e.display.maxLineChanged=!0)}null!=r&&e&&this.collapsed&&jr(e,r,i+1),this.lines.length=0,this.explicitlyCleared=!0,this.atomic&&this.doc.cantEdit&&(this.doc.cantEdit=!1,e&&zo(e.doc)),e&&In(e,"markerCleared",e,this,r,i),t&&xi(e),this.parent&&this.parent.clear()}},ga.prototype.find=function(e,t){var n,r;null==e&&"bookmark"==this.type&&(e=1);for(var i=0;i<this.lines.length;++i){var o=this.lines[i],a=Rt(o.markedSpans,this);if(null!=a.from&&(n=at(t?o:nt(o),a.from),-1==e))return n;if(null!=a.to&&(r=at(t?o:nt(o),a.to),1==e))return r}return n&&{from:n,to:r}},ga.prototype.changed=function(){var e=this,t=this.find(-1,!0),n=this,r=this.doc.cm;t&&r&&Li(r,(function(){var i=t.line,o=nt(t.line),a=nr(r,o);if(a&&(dr(a),r.curOp.selectionChanged=r.curOp.forceUpdate=!0),r.curOp.updateMaxLine=!0,!on(n.doc,i)&&null!=n.height){var s=n.height;n.height=null;var 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e.parent}))}function Ta(e,t){for(var n=0;n<t.length;n++){var r=t[n],i=r.find(),o=e.clipPos(i.from),a=e.clipPos(i.to);if(st(o,a)){var s=va(e,o,a,r.primary,r.primary.type);r.markers.push(s),s.parent=r}}}function wa(e){for(var t=r((function(t){var n=e[t],r=[n.primary.doc];bo(n.primary.doc,(function(e){return r.push(e)}));for(var i=0;i<n.markers.length;i++){var o=n.markers[i];-1==B(r,o.doc)&&(o.parent=null,n.markers.splice(i--,1))}}),"loop"),n=0;n<e.length;n++)t(n)}ya.prototype.clear=function(){if(!this.explicitlyCleared){this.explicitlyCleared=!0;for(var e=0;e<this.markers.length;++e)this.markers[e].clear();In(this,"clear")}},ya.prototype.find=function(e,t){return this.primary.find(e,t)},we(ya),r(ba,"markTextShared"),r(Ea,"findSharedMarkers"),r(Ta,"copySharedMarkers"),r(wa,"detachSharedMarkers");var Ca=0,Sa=r((function(e,t,n,r,i){if(!(this instanceof Sa))return new Sa(e,t,n,r,i);null==n&&(n=0),da.call(this,[new ca([new 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Ss(e,t,n){if("char"==n)return new ao(t,t);if("word"==n)return e.findWordAt(t);if("line"==n)return new ao(at(t.line,0),pt(e.doc,at(t.line+1,0)));var r=n(e,t);return new ao(r.from,r.to)}function xs(e,t,n,i){s&&Yr(e);var o=e.display,a=e.doc;Ce(t);var l,u,c=a.sel,d=c.ranges;if(i.addNew&&!i.extend?(u=a.sel.contains(n),l=u>-1?d[u]:new ao(n,n)):(l=a.sel.primary(),u=a.sel.primIndex),"rectangle"==i.unit)i.addNew||(l=new ao(n,n)),n=Fr(e,t,!0,!0),u=-1;else{var f=Ss(e,n,i.unit);l=i.extend?Fo(l,f.anchor,f.head,i.extend):f}i.addNew?-1==u?(u=d.length,qo(a,so(e,d.concat([l]),u),{scroll:!1,origin:"*mouse"})):d.length>1&&d[u].empty()&&"char"==i.unit&&!i.extend?(qo(a,so(e,d.slice(0,u).concat(d.slice(u+1)),0),{scroll:!1,origin:"*mouse"}),c=a.sel):Vo(a,u,l,G):(u=0,qo(a,new oo([l],0),G),c=a.sel);var p=n;function h(t){if(0!=st(p,t))if(p=t,"rectangle"==i.unit){for(var r=[],o=e.options.tabSize,s=V(Je(a,n.line).text,n.ch,o),d=V(Je(a,t.line).text,t.ch,o),f=Math.min(s,d),h=Math.max(s,d),m=Math.min(n.line,t.line),g=Math.min(e.lastLine(),Math.max(n.line,t.line));m<=g;m++){var v=Je(a,m).text,y=W(v,f,o);f==h?r.push(new ao(at(m,y),at(m,y))):v.length>y&&r.push(new ao(at(m,y),at(m,W(v,h,o))))}r.length||r.push(new ao(n,n)),qo(a,so(e,c.ranges.slice(0,u).concat(r),u),{origin:"*mouse",scroll:!1}),e.scrollIntoView(t)}else{var b,E=l,T=Ss(e,t,i.unit),w=E.anchor;st(T.anchor,w)>0?(b=T.head,w=dt(E.from(),T.anchor)):(b=T.anchor,w=ct(E.to(),T.head));var C=c.ranges.slice(0);C[u]=ks(e,new ao(pt(a,w),b)),qo(a,so(e,C,u),G)}}r(h,"extendTo");var m=o.wrapper.getBoundingClientRect(),g=0;function v(t){var n=++g,r=Fr(e,t,!0,"rectangle"==i.unit);if(r)if(0!=st(r,p)){e.curOp.focus=A(),h(r);var s=ni(o,a);(r.line>=s.to||r.line<s.from)&&setTimeout(Ai(e,(function(){g==n&&v(t)})),150)}else{var 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c=0;c<Us.length;++c)Us[c](this);xi(this),u&&t.lineWrapping&&"optimizelegibility"==getComputedStyle(o.lineDiv).textRendering&&(o.lineDiv.style.textRendering="auto")}function Vs(e){var t=e.display;me(t.scroller,"mousedown",Ai(e,bs)),me(t.scroller,"dblclick",s&&l<11?Ai(e,(function(t){if(!be(e,t)){var n=Fr(e,t);if(n&&!_s(e,t)&&!Gn(e.display,t)){Ce(t);var r=e.findWordAt(n);Po(e.doc,r.anchor,r.head)}}})):function(t){return be(e,t)||Ce(t)}),me(t.scroller,"contextmenu",(function(t){return Os(e,t)})),me(t.input.getField(),"contextmenu",(function(n){t.scroller.contains(n.target)||Os(e,n)}));var n,i={end:0};function o(){t.activeTouch&&(n=setTimeout((function(){return t.activeTouch=null}),1e3),(i=t.activeTouch).end=+new Date)}function a(e){if(1!=e.touches.length)return!1;var t=e.touches[0];return t.radiusX<=1&&t.radiusY<=1}function u(e,t){if(null==t.left)return!0;var n=t.left-e.left,r=t.top-e.top;return 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g=at(t,c.length);Vo(o,h,new ao(g,g));break}}}js.defineInitHook=function(e){return Us.push(e)},r(Bs,"indentLine");var $s=null;function qs(e){$s=e}function Hs(e,t,n,r,i){var o=e.doc;e.display.shift=!1,r||(r=o.sel);var a=+new Date-200,s="paste"==i||e.state.pasteIncoming>a,l=Re(t),u=null;if(s&&r.ranges.length>1)if($s&&$s.text.join("\n")==t){if(r.ranges.length%$s.text.length==0){u=[];for(var c=0;c<$s.text.length;c++)u.push(o.splitLines($s.text[c]))}}else l.length==r.ranges.length&&e.options.pasteLinesPerSelection&&(u=Y(l,(function(e){return[e]})));for(var d=e.curOp.updateInput,f=r.ranges.length-1;f>=0;f--){var p=r.ranges[f],h=p.from(),m=p.to();p.empty()&&(n&&n>0?h=at(h.line,h.ch-n):e.state.overwrite&&!s?m=at(m.line,Math.min(Je(o,m.line).text.length,m.ch+X(l).length)):s&&$s&&$s.lineWise&&$s.text.join("\n")==l.join("\n")&&(h=m=at(h.line,0)));var g={from:h,to:m,text:u?u[f%u.length]:l,origin:i||(s?"paste":e.state.cutIncoming>a?"cut":"+input")};Zo(e.doc,g),In(e,"inputRead",e,g)}t&&!s&&zs(e,t),li(e),e.curOp.updateInput<2&&(e.curOp.updateInput=d),e.curOp.typing=!0,e.state.pasteIncoming=e.state.cutIncoming=-1}function Gs(e,t){var n=e.clipboardData&&e.clipboardData.getData("Text");if(n)return e.preventDefault(),t.isReadOnly()||t.options.disableInput||Li(t,(function(){return Hs(t,n,0,null,"paste")})),!0}function zs(e,t){if(e.options.electricChars&&e.options.smartIndent)for(var n=e.doc.sel,r=n.ranges.length-1;r>=0;r--){var i=n.ranges[r];if(!(i.head.ch>100||r&&n.ranges[r-1].head.line==i.head.line)){var o=e.getModeAt(i.head),a=!1;if(o.electricChars){for(var s=0;s<o.electricChars.length;s++)if(t.indexOf(o.electricChars.charAt(s))>-1){a=Bs(e,i.head.line,"smart");break}}else o.electricInput&&o.electricInput.test(Je(e.doc,i.head.line).text.slice(0,i.head.ch))&&(a=Bs(e,i.head.line,"smart"));a&&In(e,"electricInput",e,i.head.line)}}}function Ws(e){for(var t=[],n=[],r=0;r<e.doc.sel.ranges.length;r++){var i=e.doc.sel.ranges[r].head.line,o={anchor:at(i,0),head:at(i+1,0)};n.push(o),t.push(e.getRange(o.anchor,o.head))}return{text:t,ranges:n}}function Ks(e,t,n,r){e.setAttribute("autocorrect",n?"":"off"),e.setAttribute("autocapitalize",r?"":"off"),e.setAttribute("spellcheck",!!t)}function Qs(){var e=I("textarea",null,null,"position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; min-height: 1em; outline: none"),t=I("div",[e],null,"overflow: hidden; position: relative; width: 3px; height: 0px;");return u?e.style.width="1000px":e.setAttribute("wrap","off"),g&&(e.style.border="1px solid black"),Ks(e),t}function Xs(e){var t=e.optionHandlers,n=e.helpers={};e.prototype={constructor:e,focus:function(){window.focus(),this.display.input.focus()},setOption:function(e,n){var r=this.options,i=r[e];r[e]==n&&"mode"!=e||(r[e]=n,t.hasOwnProperty(e)&&Ai(this,t[e])(this,n,i),ye(this,"optionChange",this,e))},getOption:function(e){return this.options[e]},getDoc:function(){return this.doc},addKeyMap:function(e,t){this.state.keyMaps[t?"push":"unshift"](za(e))},removeKeyMap:function(e){for(var t=this.state.keyMaps,n=0;n<t.length;++n)if(t[n]==e||t[n].name==e)return t.splice(n,1),!0},addOverlay:Mi((function(t,n){var r=t.token?t:e.getMode(this.options,t);if(r.startState)throw new Error("Overlays may not be stateful.");J(this.state.overlays,{mode:r,modeSpec:t,opaque:n&&n.opaque,priority:n&&n.priority||0},(function(e){return e.priority})),this.state.modeGen++,jr(this)})),removeOverlay:Mi((function(e){for(var t=this.state.overlays,n=0;n<t.length;++n){var r=t[n].modeSpec;if(r==e||"string"==typeof e&&r.name==e)return t.splice(n,1),this.state.modeGen++,void jr(this)}})),indentLine:Mi((function(e,t,n){"string"!=typeof t&&"number"!=typeof t&&(t=null==t?this.options.smartIndent?"smart":"prev":t?"add":"subtract"),it(this.doc,e)&&Bs(this,e,t,n)})),indentSelection:Mi((function(e){for(var t=this.doc.sel.ranges,n=-1,r=0;r<t.length;r++){var i=t[r];if(i.empty())i.head.line>n&&(Bs(this,i.head.line,e,!0),n=i.head.line,r==this.doc.sel.primIndex&&li(this));else{var o=i.from(),a=i.to(),s=Math.max(n,o.line);n=Math.min(this.lastLine(),a.line-(a.ch?0:1))+1;for(var l=s;l<n;++l)Bs(this,l,e);var u=this.doc.sel.ranges;0==o.ch&&t.length==u.length&&u[r].from().ch>0&&Vo(this.doc,r,new ao(o,u[r].to()),H)}}})),getTokenAt:function(e,t){return xt(this,e,t)},getLineTokens:function(e,t){return xt(this,at(e),t,!0)},getTokenTypeAt:function(e){e=pt(this.doc,e);var t,n=bt(this,Je(this.doc,e.line)),r=0,i=(n.length-1)/2,o=e.ch;if(0==o)t=n[2];else for(;;){var a=r+i>>1;if((a?n[2*a-1]:0)>=o)i=a;else{if(!(n[2*a+1]<o)){t=n[2*a+2];break}r=a+1}}var s=t?t.indexOf("overlay "):-1;return s<0?t:0==s?null:t.slice(0,s-1)},getModeAt:function(t){var n=this.doc.mode;return n.innerMode?e.innerMode(n,this.getTokenAt(t).state).mode:n},getHelper:function(e,t){return this.getHelpers(e,t)[0]},getHelpers:function(e,t){var r=[];if(!n.hasOwnProperty(t))return r;var i=n[t],o=this.getModeAt(e);if("string"==typeof o[t])i[o[t]]&&r.push(i[o[t]]);else if(o[t])for(var a=0;a<o[t].length;a++){var s=i[o[t][a]];s&&r.push(s)}else o.helperType&&i[o.helperType]?r.push(i[o.helperType]):i[o.name]&&r.push(i[o.name]);for(var l=0;l<i._global.length;l++){var u=i._global[l];u.pred(o,this)&&-1==B(r,u.val)&&r.push(u.val)}return r},getStateAfter:function(e,t){var n=this.doc;return Et(this,(e=ft(n,null==e?n.first+n.size-1:e))+1,t).state},cursorCoords:function(e,t){var n=this.doc.sel.primary();return Er(this,null==e?n.head:"object"==typeof e?pt(this.doc,e):e?n.from():n.to(),t||"page")},charCoords:function(e,t){return br(this,pt(this.doc,e),t||"page")},coordsChar:function(e,t){return Cr(this,(e=yr(this,e,t||"page")).left,e.top)},lineAtHeight:function(e,t){return e=yr(this,{top:e,left:0},t||"page").top,rt(this.doc,e+this.display.viewOffset)},heightAtLine:function(e,t,n){var r,i=!1;if("number"==typeof e){var o=this.doc.first+this.doc.size-1;e<this.doc.first?e=this.doc.first:e>o&&(e=o,i=!0),r=Je(this.doc,e)}else r=e;return vr(this,r,{top:0,left:0},t||"page",n||i).top+(i?this.doc.height-sn(r):0)},defaultTextHeight:function(){return Ir(this.display)},defaultCharWidth:function(){return Dr(this.display)},getViewport:function(){return{from:this.display.viewFrom,to:this.display.viewTo}},addWidget:function(e,t,n,r,i){var o=this.display,a=(e=Er(this,pt(this.doc,e))).bottom,s=e.left;if(t.style.position="absolute",t.setAttribute("cm-ignore-events","true"),this.display.input.setUneditable(t),o.sizer.appendChild(t),"over"==r)a=e.top;else if("above"==r||"near"==r){var l=Math.max(o.wrapper.clientHeight,this.doc.height),u=Math.max(o.sizer.clientWidth,o.lineSpace.clientWidth);("above"==r||e.bottom+t.offsetHeight>l)&&e.top>t.offsetHeight?a=e.top-t.offsetHeight:e.bottom+t.offsetHeight<=l&&(a=e.bottom),s+t.offsetWidth>u&&(s=u-t.offsetWidth)}t.style.top=a+"px",t.style.left=t.style.right="","right"==i?(s=o.sizer.clientWidth-t.offsetWidth,t.style.right="0px"):("left"==i?s=0:"middle"==i&&(s=(o.sizer.clientWidth-t.offsetWidth)/2),t.style.left=s+"px"),n&&oi(this,{left:s,top:a,right:s+t.offsetWidth,bottom:a+t.offsetHeight})},triggerOnKeyDown:Mi(cs),triggerOnKeyPress:Mi(ps),triggerOnKeyUp:fs,triggerOnMouseDown:Mi(bs),execCommand:function(e){if(Ja.hasOwnProperty(e))return Ja[e].call(null,this)},triggerElectric:Mi((function(e){zs(this,e)})),findPosH:function(e,t,n,r){var i=1;t<0&&(i=-1,t=-t);for(var o=pt(this.doc,e),a=0;a<t&&!(o=Ys(this.doc,o,i,n,r)).hitSide;++a);return o},moveH:Mi((function(e,t){var n=this;this.extendSelectionsBy((function(r){return n.display.shift||n.doc.extend||r.empty()?Ys(n.doc,r.head,e,t,n.options.rtlMoveVisually):e<0?r.from():r.to()}),z)})),deleteH:Mi((function(e,t){var n=this.doc.sel,r=this.doc;n.somethingSelected()?r.replaceSelection("",null,"+delete"):Wa(this,(function(n){var i=Ys(r,n.head,e,t,!1);return e<0?{from:i,to:n.head}:{from:n.head,to:i}}))})),findPosV:function(e,t,n,r){var i=1,o=r;t<0&&(i=-1,t=-t);for(var a=pt(this.doc,e),s=0;s<t;++s){var l=Er(this,a,"div");if(null==o?o=l.left:l.left=o,(a=Js(this,l,i,n)).hitSide)break}return a},moveV:Mi((function(e,t){var n=this,r=this.doc,i=[],o=!this.display.shift&&!r.extend&&r.sel.somethingSelected();if(r.extendSelectionsBy((function(a){if(o)return e<0?a.from():a.to();var s=Er(n,a.head,"div");null!=a.goalColumn&&(s.left=a.goalColumn),i.push(s.left);var l=Js(n,s,e,t);return"page"==t&&a==r.sel.primary()&&si(n,br(n,l,"div").top-s.top),l}),z),i.length)for(var a=0;a<r.sel.ranges.length;a++)r.sel.ranges[a].goalColumn=i[a]})),findWordAt:function(e){var t=Je(this.doc,e.line).text,n=e.ch,r=e.ch;if(t){var i=this.getHelper(e,"wordChars");"before"!=e.sticky&&r!=t.length||!n?++r:--n;for(var o=t.charAt(n),a=re(o,i)?function(e){return re(e,i)}:/\s/.test(o)?function(e){return/\s/.test(e)}:function(e){return!/\s/.test(e)&&!re(e)};n>0&&a(t.charAt(n-1));)--n;for(;r<t.length&&a(t.charAt(r));)++r}return new ao(at(e.line,n),at(e.line,r))},toggleOverwrite:function(e){null!=e&&e==this.state.overwrite||((this.state.overwrite=!this.state.overwrite)?M(this.display.cursorDiv,"CodeMirror-overwrite"):N(this.display.cursorDiv,"CodeMirror-overwrite"),ye(this,"overwriteToggle",this,this.state.overwrite))},hasFocus:function(){return this.display.input.getField()==A()},isReadOnly:function(){return!(!this.options.readOnly&&!this.doc.cantEdit)},scrollTo:Mi((function(e,t){ui(this,e,t)})),getScrollInfo:function(){var e=this.display.scroller;return{left:e.scrollLeft,top:e.scrollTop,height:e.scrollHeight-Qn(this)-this.display.barHeight,width:e.scrollWidth-Qn(this)-this.display.barWidth,clientHeight:Yn(this),clientWidth:Xn(this)}},scrollIntoView:Mi((function(e,t){null==e?(e={from:this.doc.sel.primary().head,to:null},null==t&&(t=this.options.cursorScrollMargin)):"number"==typeof e?e={from:at(e,0),to:null}:null==e.from&&(e={from:e,to:null}),e.to||(e.to=e.from),e.margin=t||0,null!=e.from.line?ci(this,e):fi(this,e.from,e.to,e.margin)})),setSize:Mi((function(e,t){var n=this,i=r((function(e){return"number"==typeof e||/^\d+$/.test(String(e))?e+"px":e}),"interpret");null!=e&&(this.display.wrapper.style.width=i(e)),null!=t&&(this.display.wrapper.style.height=i(t)),this.options.lineWrapping&&fr(this);var o=this.display.viewFrom;this.doc.iter(o,this.display.viewTo,(function(e){if(e.widgets)for(var t=0;t<e.widgets.length;t++)if(e.widgets[t].noHScroll){Vr(n,o,"widget");break}++o})),this.curOp.forceUpdate=!0,ye(this,"refresh",this)})),operation:function(e){return Li(this,e)},startOperation:function(){return Si(this)},endOperation:function(){return xi(this)},refresh:Mi((function(){var e=this.display.cachedTextHeight;jr(this),this.curOp.forceUpdate=!0,pr(this),ui(this,this.doc.scrollLeft,this.doc.scrollTop),zi(this.display),(null==e||Math.abs(e-Ir(this.display))>.5||this.options.lineWrapping)&&Rr(this),ye(this,"refresh",this)})),swapDoc:Mi((function(e){var t=this.doc;return t.cm=null,this.state.selectingText&&this.state.selectingText(),Eo(this,e),pr(this),this.display.input.reset(),ui(this,e.scrollLeft,e.scrollTop),this.curOp.forceScroll=!0,In(this,"swapDoc",this,t),t})),phrase:function(e){var t=this.options.phrases;return t&&Object.prototype.hasOwnProperty.call(t,e)?t[e]:e},getInputField:function(){return this.display.input.getField()},getWrapperElement:function(){return this.display.wrapper},getScrollerElement:function(){return this.display.scroller},getGutterElement:function(){return this.display.gutters}},we(e),e.registerHelper=function(t,r,i){n.hasOwnProperty(t)||(n[t]=e[t]={_global:[]}),n[t][r]=i},e.registerGlobalHelper=function(t,r,i,o){e.registerHelper(t,r,o),n[t]._global.push({pred:i,val:o})}}function Ys(e,t,n,i,o){var a=t,s=n,l=Je(e,t.line),u=o&&"rtl"==e.direction?-n:n;function c(){var n=t.line+u;return!(n<e.first||n>=e.first+e.size)&&(t=new at(n,t.ch,t.sticky),l=Je(e,n))}function d(r){var a;if("codepoint"==i){var s=l.text.charCodeAt(t.ch+(n>0?0:-1));if(isNaN(s))a=null;else{var d=n>0?s>=55296&&s<56320:s>=56320&&s<57343;a=new at(t.line,Math.max(0,Math.min(l.text.length,t.ch+n*(d?2:1))),-n)}}else a=o?Ya(e.cm,l,t,n):Qa(l,t,n);if(null==a){if(r||!c())return!1;t=Xa(o,e.cm,l,t.line,u)}else t=a;return!0}if(r(c,"findNextLine"),r(d,"moveOnce"),"char"==i||"codepoint"==i)d();else if("column"==i)d(!0);else if("word"==i||"group"==i)for(var f=null,p="group"==i,h=e.cm&&e.cm.getHelper(t,"wordChars"),m=!0;!(n<0)||d(!m);m=!1){var g=l.text.charAt(t.ch)||"\n",v=re(g,h)?"w":p&&"\n"==g?"n":!p||/\s/.test(g)?null:"p";if(!p||m||v||(v="s"),f&&f!=v){n<0&&(n=1,d(),t.sticky="after");break}if(v&&(f=v),n>0&&!d(!m))break}var y=Qo(e,t,a,s,!0);return lt(a,y)&&(y.hitSide=!0),y}function Js(e,t,n,r){var i,o,a=e.doc,s=t.left;if("page"==r){var l=Math.min(e.display.wrapper.clientHeight,window.innerHeight||document.documentElement.clientHeight),u=Math.max(l-.5*Ir(e.display),3);i=(n>0?t.bottom:t.top)+n*u}else"line"==r&&(i=n>0?t.bottom+3:t.top-3);for(;(o=Cr(e,s,i)).outside;){if(n<0?i<=0:i>=a.height){o.hitSide=!0;break}i+=5*n}return o}r(qs,"setLastCopied"),r(Hs,"applyTextInput"),r(Gs,"handlePaste"),r(zs,"triggerElectric"),r(Ws,"copyableRanges"),r(Ks,"disableBrowserMagic"),r(Qs,"hiddenTextarea"),r(Xs,"addEditorMethods"),r(Ys,"findPosH"),r(Js,"findPosV");var Zs=r((function(e){this.cm=e,this.lastAnchorNode=this.lastAnchorOffset=this.lastFocusNode=this.lastFocusOffset=null,this.polling=new U,this.composing=null,this.gracePeriod=!1,this.readDOMTimeout=null}),"ContentEditableInput");function el(e,t){var n=nr(e,t.line);if(!n||n.hidden)return null;var r=Je(e.doc,t.line),i=Zn(n,r,t.line),o=pe(r,e.doc.direction),a="left";o&&(a=de(o,t.ch)%2?"right":"left");var s=sr(i.map,t.ch,a);return s.offset="right"==s.collapse?s.end:s.start,s}function tl(e){for(var t=e;t;t=t.parentNode)if(/CodeMirror-gutter-wrapper/.test(t.className))return!0;return!1}function nl(e,t){return t&&(e.bad=!0),e}function rl(e,t,n,i,o){var a="",s=!1,l=e.doc.lineSeparator(),u=!1;function c(e){return function(t){return t.id==e}}function d(){s&&(a+=l,u&&(a+=l),s=u=!1)}function f(e){e&&(d(),a+=e)}function p(t){if(1==t.nodeType){var n=t.getAttribute("cm-text");if(n)return void f(n);var r,a=t.getAttribute("cm-marker");if(a){var h=e.findMarks(at(i,0),at(o+1,0),c(+a));return void(h.length&&(r=h[0].find(0))&&f(Ze(e.doc,r.from,r.to).join(l)))}if("false"==t.getAttribute("contenteditable"))return;var m=/^(pre|div|p|li|table|br)$/i.test(t.nodeName);if(!/^br$/i.test(t.nodeName)&&0==t.textContent.length)return;m&&d();for(var g=0;g<t.childNodes.length;g++)p(t.childNodes[g]);/^(pre|p)$/i.test(t.nodeName)&&(u=!0),m&&(s=!0)}else 3==t.nodeType&&f(t.nodeValue.replace(/\u200b/g,"").replace(/\u00a0/g," "))}for(r(c,"recognizeMarker"),r(d,"close"),r(f,"addText"),r(p,"walk");p(t),t!=n;)t=t.nextSibling,u=!1;return a}function il(e,t,n){var r;if(t==e.display.lineDiv){if(!(r=e.display.lineDiv.childNodes[n]))return nl(e.clipPos(at(e.display.viewTo-1)),!0);t=null,n=0}else for(r=t;;r=r.parentNode){if(!r||r==e.display.lineDiv)return null;if(r.parentNode&&r.parentNode==e.display.lineDiv)break}for(var i=0;i<e.display.view.length;i++){var o=e.display.view[i];if(o.node==r)return ol(o,t,n)}}function ol(e,t,n){var i=e.text.firstChild,o=!1;if(!t||!L(i,t))return nl(at(nt(e.line),0),!0);if(t==i&&(o=!0,t=i.childNodes[n],n=0,!t)){var a=e.rest?X(e.rest):e.line;return nl(at(nt(a),a.text.length),o)}var s=3==t.nodeType?t:null,l=t;for(s||1!=t.childNodes.length||3!=t.firstChild.nodeType||(s=t.firstChild,n&&(n=s.nodeValue.length));l.parentNode!=i;)l=l.parentNode;var u=e.measure,c=u.maps;function d(t,n,r){for(var i=-1;i<(c?c.length:0);i++)for(var o=i<0?u.map:c[i],a=0;a<o.length;a+=3){var s=o[a+2];if(s==t||s==n){var l=nt(i<0?e.line:e.rest[i]),d=o[a]+r;return(r<0||s!=t)&&(d=o[a+(r?1:0)]),at(l,d)}}}r(d,"find");var f=d(s,l,n);if(f)return nl(f,o);for(var p=l.nextSibling,h=s?s.nodeValue.length-n:0;p;p=p.nextSibling){if(f=d(p,p.firstChild,0))return nl(at(f.line,f.ch-h),o);h+=p.textContent.length}for(var m=l.previousSibling,g=n;m;m=m.previousSibling){if(f=d(m,m.firstChild,-1))return nl(at(f.line,f.ch+g),o);g+=m.textContent.length}}Zs.prototype.init=function(e){var t=this,n=this,i=n.cm,o=n.div=e.lineDiv;function a(e){for(var t=e.target;t;t=t.parentNode){if(t==o)return!0;if(/\bCodeMirror-(?:line)?widget\b/.test(t.className))break}return!1}function s(e){if(a(e)&&!be(i,e)){if(i.somethingSelected())qs({lineWise:!1,text:i.getSelections()}),"cut"==e.type&&i.replaceSelection("",null,"cut");else{if(!i.options.lineWiseCopyCut)return;var t=Ws(i);qs({lineWise:!0,text:t.text}),"cut"==e.type&&i.operation((function(){i.setSelections(t.ranges,0,H),i.replaceSelection("",null,"cut")}))}if(e.clipboardData){e.clipboardData.clearData();var r=$s.text.join("\n");if(e.clipboardData.setData("Text",r),e.clipboardData.getData("Text")==r)return void e.preventDefault()}var s=Qs(),l=s.firstChild;i.display.lineSpace.insertBefore(s,i.display.lineSpace.firstChild),l.value=$s.text.join("\n");var u=A();F(l),setTimeout((function(){i.display.lineSpace.removeChild(s),u.focus(),u==o&&n.showPrimarySelection()}),50)}}o.contentEditable=!0,Ks(o,i.options.spellcheck,i.options.autocorrect,i.options.autocapitalize),r(a,"belongsToInput"),me(o,"paste",(function(e){!a(e)||be(i,e)||Gs(e,i)||l<=11&&setTimeout(Ai(i,(function(){return t.updateFromDOM()})),20)})),me(o,"compositionstart",(function(e){t.composing={data:e.data,done:!1}})),me(o,"compositionupdate",(function(e){t.composing||(t.composing={data:e.data,done:!1})})),me(o,"compositionend",(function(e){t.composing&&(e.data!=t.composing.data&&t.readFromDOMSoon(),t.composing.done=!0)})),me(o,"touchstart",(function(){return n.forceCompositionEnd()})),me(o,"input",(function(){t.composing||t.readFromDOMSoon()})),r(s,"onCopyCut"),me(o,"copy",s),me(o,"cut",s)},Zs.prototype.screenReaderLabelChanged=function(e){e?this.div.setAttribute("aria-label",e):this.div.removeAttribute("aria-label")},Zs.prototype.prepareSelection=function(){var e=Gr(this.cm,!1);return e.focus=A()==this.div,e},Zs.prototype.showSelection=function(e,t){e&&this.cm.display.view.length&&((e.focus||t)&&this.showPrimarySelection(),this.showMultipleSelections(e))},Zs.prototype.getSelection=function(){return this.cm.display.wrapper.ownerDocument.getSelection()},Zs.prototype.showPrimarySelection=function(){var e=this.getSelection(),t=this.cm,r=t.doc.sel.primary(),i=r.from(),o=r.to();if(t.display.viewTo==t.display.viewFrom||i.line>=t.display.viewTo||o.line<t.display.viewFrom)e.removeAllRanges();else{var a=il(t,e.anchorNode,e.anchorOffset),s=il(t,e.focusNode,e.focusOffset);if(!a||a.bad||!s||s.bad||0!=st(dt(a,s),i)||0!=st(ct(a,s),o)){var l=t.display.view,u=i.line>=t.display.viewFrom&&el(t,i)||{node:l[0].measure.map[2],offset:0},c=o.line<t.display.viewTo&&el(t,o);if(!c){var d=l[l.length-1].measure,f=d.maps?d.maps[d.maps.length-1]:d.map;c={node:f[f.length-1],offset:f[f.length-2]-f[f.length-3]}}if(u&&c){var p,h=e.rangeCount&&e.getRangeAt(0);try{p=k(u.node,u.offset,c.offset,c.node)}catch(e){}p&&(!n&&t.state.focused?(e.collapse(u.node,u.offset),p.collapsed||(e.removeAllRanges(),e.addRange(p))):(e.removeAllRanges(),e.addRange(p)),h&&null==e.anchorNode?e.addRange(h):n&&this.startGracePeriod()),this.rememberSelection()}else e.removeAllRanges()}}},Zs.prototype.startGracePeriod=function(){var e=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout((function(){e.gracePeriod=!1,e.selectionChanged()&&e.cm.operation((function(){return e.cm.curOp.selectionChanged=!0}))}),20)},Zs.prototype.showMultipleSelections=function(e){O(this.cm.display.cursorDiv,e.cursors),O(this.cm.display.selectionDiv,e.selection)},Zs.prototype.rememberSelection=function(){var e=this.getSelection();this.lastAnchorNode=e.anchorNode,this.lastAnchorOffset=e.anchorOffset,this.lastFocusNode=e.focusNode,this.lastFocusOffset=e.focusOffset},Zs.prototype.selectionInEditor=function(){var e=this.getSelection();if(!e.rangeCount)return!1;var t=e.getRangeAt(0).commonAncestorContainer;return L(this.div,t)},Zs.prototype.focus=function(){"nocursor"!=this.cm.options.readOnly&&(this.selectionInEditor()&&A()==this.div||this.showSelection(this.prepareSelection(),!0),this.div.focus())},Zs.prototype.blur=function(){this.div.blur()},Zs.prototype.getField=function(){return this.div},Zs.prototype.supportsTouch=function(){return!0},Zs.prototype.receivedFocus=function(){var e=this,t=this;function n(){t.cm.state.focused&&(t.pollSelection(),t.polling.set(t.cm.options.pollInterval,n))}this.selectionInEditor()?setTimeout((function(){return e.pollSelection()}),20):Li(this.cm,(function(){return t.cm.curOp.selectionChanged=!0})),r(n,"poll"),this.polling.set(this.cm.options.pollInterval,n)},Zs.prototype.selectionChanged=function(){var e=this.getSelection();return e.anchorNode!=this.lastAnchorNode||e.anchorOffset!=this.lastAnchorOffset||e.focusNode!=this.lastFocusNode||e.focusOffset!=this.lastFocusOffset},Zs.prototype.pollSelection=function(){if(null==this.readDOMTimeout&&!this.gracePeriod&&this.selectionChanged()){var e=this.getSelection(),t=this.cm;if(v&&d&&this.cm.display.gutterSpecs.length&&tl(e.anchorNode))return this.cm.triggerOnKeyDown({type:"keydown",keyCode:8,preventDefault:Math.abs}),this.blur(),void this.focus();if(!this.composing){this.rememberSelection();var n=il(t,e.anchorNode,e.anchorOffset),r=il(t,e.focusNode,e.focusOffset);n&&r&&Li(t,(function(){qo(t.doc,lo(n,r),H),(n.bad||r.bad)&&(t.curOp.selectionChanged=!0)}))}}},Zs.prototype.pollContent=function(){null!=this.readDOMTimeout&&(clearTimeout(this.readDOMTimeout),this.readDOMTimeout=null);var e,t,n,r=this.cm,i=r.display,o=r.doc.sel.primary(),a=o.from(),s=o.to();if(0==a.ch&&a.line>r.firstLine()&&(a=at(a.line-1,Je(r.doc,a.line-1).length)),s.ch==Je(r.doc,s.line).text.length&&s.line<r.lastLine()&&(s=at(s.line+1,0)),a.line<i.viewFrom||s.line>i.viewTo-1)return!1;a.line==i.viewFrom||0==(e=Pr(r,a.line))?(t=nt(i.view[0].line),n=i.view[0].node):(t=nt(i.view[e].line),n=i.view[e-1].node.nextSibling);var l,u,c=Pr(r,s.line);if(c==i.view.length-1?(l=i.viewTo-1,u=i.lineDiv.lastChild):(l=nt(i.view[c+1].line)-1,u=i.view[c+1].node.previousSibling),!n)return!1;for(var d=r.doc.splitLines(rl(r,n,u,t,l)),f=Ze(r.doc,at(t,0),at(l,Je(r.doc,l).text.length));d.length>1&&f.length>1;)if(X(d)==X(f))d.pop(),f.pop(),l--;else{if(d[0]!=f[0])break;d.shift(),f.shift(),t++}for(var p=0,h=0,m=d[0],g=f[0],v=Math.min(m.length,g.length);p<v&&m.charCodeAt(p)==g.charCodeAt(p);)++p;for(var y=X(d),b=X(f),E=Math.min(y.length-(1==d.length?p:0),b.length-(1==f.length?p:0));h<E&&y.charCodeAt(y.length-h-1)==b.charCodeAt(b.length-h-1);)++h;if(1==d.length&&1==f.length&&t==a.line)for(;p&&p>a.ch&&y.charCodeAt(y.length-h-1)==b.charCodeAt(b.length-h-1);)p--,h++;d[d.length-1]=y.slice(0,y.length-h).replace(/^\u200b+/,""),d[0]=d[0].slice(p).replace(/\u200b+$/,"");var T=at(t,p),w=at(l,f.length?X(f).length-h:0);return d.length>1||d[0]||st(T,w)?(oa(r.doc,d,T,w,"+input"),!0):void 0},Zs.prototype.ensurePolled=function(){this.forceCompositionEnd()},Zs.prototype.reset=function(){this.forceCompositionEnd()},Zs.prototype.forceCompositionEnd=function(){this.composing&&(clearTimeout(this.readDOMTimeout),this.composing=null,this.updateFromDOM(),this.div.blur(),this.div.focus())},Zs.prototype.readFromDOMSoon=function(){var e=this;null==this.readDOMTimeout&&(this.readDOMTimeout=setTimeout((function(){if(e.readDOMTimeout=null,e.composing){if(!e.composing.done)return;e.composing=null}e.updateFromDOM()}),80))},Zs.prototype.updateFromDOM=function(){var e=this;!this.cm.isReadOnly()&&this.pollContent()||Li(this.cm,(function(){return jr(e.cm)}))},Zs.prototype.setUneditable=function(e){e.contentEditable="false"},Zs.prototype.onKeyPress=function(e){0==e.charCode||this.composing||(e.preventDefault(),this.cm.isReadOnly()||Ai(this.cm,Hs)(this.cm,String.fromCharCode(null==e.charCode?e.keyCode:e.charCode),0))},Zs.prototype.readOnlyChanged=function(e){this.div.contentEditable=String("nocursor"!=e)},Zs.prototype.onContextMenu=function(){},Zs.prototype.resetPosition=function(){},Zs.prototype.needsContentAttribute=!0,r(el,"posToDOM"),r(tl,"isInGutter"),r(nl,"badPos"),r(rl,"domTextBetween"),r(il,"domToPos"),r(ol,"locateNodeInLineView");var al=r((function(e){this.cm=e,this.prevInput="",this.pollingFast=!1,this.polling=new U,this.hasSelection=!1,this.composing=null}),"TextareaInput");function sl(e,t){if((t=t?j(t):{}).value=e.value,!t.tabindex&&e.tabIndex&&(t.tabindex=e.tabIndex),!t.placeholder&&e.placeholder&&(t.placeholder=e.placeholder),null==t.autofocus){var n=A();t.autofocus=n==e||null!=e.getAttribute("autofocus")&&n==document.body}function i(){e.value=l.getValue()}var o;if(r(i,"save"),e.form&&(me(e.form,"submit",i),!t.leaveSubmitMethodAlone)){var a=e.form;o=a.submit;try{var s=a.submit=function(){i(),a.submit=o,a.submit(),a.submit=s}}catch(e){}}t.finishInit=function(n){n.save=i,n.getTextArea=function(){return e},n.toTextArea=function(){n.toTextArea=isNaN,i(),e.parentNode.removeChild(n.getWrapperElement()),e.style.display="",e.form&&(ve(e.form,"submit",i),t.leaveSubmitMethodAlone||"function"!=typeof e.form.submit||(e.form.submit=o))}},e.style.display="none";var l=js((function(t){return e.parentNode.insertBefore(t,e.nextSibling)}),t);return l}function ll(e){e.off=ve,e.on=me,e.wheelEventPixels=ro,e.Doc=Sa,e.splitLines=Re,e.countColumn=V,e.findColumn=W,e.isWordChar=ne,e.Pass=q,e.signal=ye,e.Line=cn,e.changeEnd=uo,e.scrollbarModel=Ti,e.Pos=at,e.cmpPos=st,e.modes=Ue,e.mimeModes=Be,e.resolveMode=He,e.getMode=Ge,e.modeExtensions=ze,e.extendMode=We,e.copyState=Ke,e.startState=Xe,e.innerMode=Qe,e.commands=Ja,e.keyMap=Va,e.keyName=Ga,e.isModifierKey=qa,e.lookupKey=$a,e.normalizeKeyMap=Ba,e.StringStream=Ye,e.SharedTextMarker=ya,e.TextMarker=ga,e.LineWidget=fa,e.e_preventDefault=Ce,e.e_stopPropagation=Se,e.e_stop=ke,e.addClass=M,e.contains=L,e.rmClass=N,e.keyNames=Ra}al.prototype.init=function(e){var t=this,n=this,i=this.cm;this.createField(e);var o=this.textarea;function a(e){if(!be(i,e)){if(i.somethingSelected())qs({lineWise:!1,text:i.getSelections()});else{if(!i.options.lineWiseCopyCut)return;var t=Ws(i);qs({lineWise:!0,text:t.text}),"cut"==e.type?i.setSelections(t.ranges,null,H):(n.prevInput="",o.value=t.text.join("\n"),F(o))}"cut"==e.type&&(i.state.cutIncoming=+new Date)}}e.wrapper.insertBefore(this.wrapper,e.wrapper.firstChild),g&&(o.style.width="0px"),me(o,"input",(function(){s&&l>=9&&t.hasSelection&&(t.hasSelection=null),n.poll()})),me(o,"paste",(function(e){be(i,e)||Gs(e,i)||(i.state.pasteIncoming=+new Date,n.fastPoll())})),r(a,"prepareCopyCut"),me(o,"cut",a),me(o,"copy",a),me(e.scroller,"paste",(function(t){if(!Gn(e,t)&&!be(i,t)){if(!o.dispatchEvent)return i.state.pasteIncoming=+new Date,void n.focus();var r=new Event("paste");r.clipboardData=t.clipboardData,o.dispatchEvent(r)}})),me(e.lineSpace,"selectstart",(function(t){Gn(e,t)||Ce(t)})),me(o,"compositionstart",(function(){var e=i.getCursor("from");n.composing&&n.composing.range.clear(),n.composing={start:e,range:i.markText(e,i.getCursor("to"),{className:"CodeMirror-composing"})}})),me(o,"compositionend",(function(){n.composing&&(n.poll(),n.composing.range.clear(),n.composing=null)}))},al.prototype.createField=function(e){this.wrapper=Qs(),this.textarea=this.wrapper.firstChild},al.prototype.screenReaderLabelChanged=function(e){e?this.textarea.setAttribute("aria-label",e):this.textarea.removeAttribute("aria-label")},al.prototype.prepareSelection=function(){var e=this.cm,t=e.display,n=e.doc,r=Gr(e);if(e.options.moveInputWithCursor){var i=Er(e,n.sel.primary().head,"div"),o=t.wrapper.getBoundingClientRect(),a=t.lineDiv.getBoundingClientRect();r.teTop=Math.max(0,Math.min(t.wrapper.clientHeight-10,i.top+a.top-o.top)),r.teLeft=Math.max(0,Math.min(t.wrapper.clientWidth-10,i.left+a.left-o.left))}return r},al.prototype.showSelection=function(e){var t=this.cm.display;O(t.cursorDiv,e.cursors),O(t.selectionDiv,e.selection),null!=e.teTop&&(this.wrapper.style.top=e.teTop+"px",this.wrapper.style.left=e.teLeft+"px")},al.prototype.reset=function(e){if(!this.contextMenuPending&&!this.composing){var t=this.cm;if(t.somethingSelected()){this.prevInput="";var n=t.getSelection();this.textarea.value=n,t.state.focused&&F(this.textarea),s&&l>=9&&(this.hasSelection=n)}else e||(this.prevInput=this.textarea.value="",s&&l>=9&&(this.hasSelection=null))}},al.prototype.getField=function(){return this.textarea},al.prototype.supportsTouch=function(){return!1},al.prototype.focus=function(){if("nocursor"!=this.cm.options.readOnly&&(!y||A()!=this.textarea))try{this.textarea.focus()}catch(e){}},al.prototype.blur=function(){this.textarea.blur()},al.prototype.resetPosition=function(){this.wrapper.style.top=this.wrapper.style.left=0},al.prototype.receivedFocus=function(){this.slowPoll()},al.prototype.slowPoll=function(){var e=this;this.pollingFast||this.polling.set(this.cm.options.pollInterval,(function(){e.poll(),e.cm.state.focused&&e.slowPoll()}))},al.prototype.fastPoll=function(){var e=!1,t=this;function n(){t.poll()||e?(t.pollingFast=!1,t.slowPoll()):(e=!0,t.polling.set(60,n))}t.pollingFast=!0,r(n,"p"),t.polling.set(20,n)},al.prototype.poll=function(){var e=this,t=this.cm,n=this.textarea,r=this.prevInput;if(this.contextMenuPending||!t.state.focused||Fe(n)&&!r&&!this.composing||t.isReadOnly()||t.options.disableInput||t.state.keySeq)return!1;var i=n.value;if(i==r&&!t.somethingSelected())return!1;if(s&&l>=9&&this.hasSelection===i||b&&/[\uf700-\uf7ff]/.test(i))return t.display.input.reset(),!1;if(t.doc.sel==t.display.selForContextMenu){var o=i.charCodeAt(0);if(8203!=o||r||(r="​"),8666==o)return this.reset(),this.cm.execCommand("undo")}for(var a=0,u=Math.min(r.length,i.length);a<u&&r.charCodeAt(a)==i.charCodeAt(a);)++a;return Li(t,(function(){Hs(t,i.slice(a),r.length-a,null,e.composing?"*compose":null),i.length>1e3||i.indexOf("\n")>-1?n.value=e.prevInput="":e.prevInput=i,e.composing&&(e.composing.range.clear(),e.composing.range=t.markText(e.composing.start,t.getCursor("to"),{className:"CodeMirror-composing"}))})),!0},al.prototype.ensurePolled=function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},al.prototype.onKeyPress=function(){s&&l>=9&&(this.hasSelection=null),this.fastPoll()},al.prototype.onContextMenu=function(e){var t=this,n=t.cm,i=n.display,o=t.textarea;t.contextMenuPending&&t.contextMenuPending();var a=Fr(n,e),c=i.scroller.scrollTop;if(a&&!f){n.options.resetSelectionOnContextMenu&&-1==n.doc.sel.contains(a)&&Ai(n,qo)(n.doc,lo(a),H);var d,p=o.style.cssText,h=t.wrapper.style.cssText,m=t.wrapper.offsetParent.getBoundingClientRect();if(t.wrapper.style.cssText="position: static",o.style.cssText="position: absolute; width: 30px; height: 30px;\n      top: "+(e.clientY-m.top-5)+"px; left: "+(e.clientX-m.left-5)+"px;\n      z-index: 1000; background: "+(s?"rgba(255, 255, 255, .05)":"transparent")+";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",u&&(d=window.scrollY),i.input.focus(),u&&window.scrollTo(null,d),i.input.reset(),n.somethingSelected()||(o.value=t.prevInput=" "),t.contextMenuPending=y,i.selForContextMenu=n.doc.sel,clearTimeout(i.detectingSelectAll),r(v,"prepareSelectAllHack"),r(y,"rehide"),s&&l>=9&&v(),S){ke(e);var g=r((function(){ve(window,"mouseup",g),setTimeout(y,20)}),"mouseup");me(window,"mouseup",g)}else setTimeout(y,50)}function v(){if(null!=o.selectionStart){var e=n.somethingSelected(),r="​"+(e?o.value:"");o.value="⇚",o.value=r,t.prevInput=e?"":"​",o.selectionStart=1,o.selectionEnd=r.length,i.selForContextMenu=n.doc.sel}}function y(){if(t.contextMenuPending==y&&(t.contextMenuPending=!1,t.wrapper.style.cssText=h,o.style.cssText=p,s&&l<9&&i.scrollbars.setScrollTop(i.scroller.scrollTop=c),null!=o.selectionStart)){(!s||s&&l<9)&&v();var e=0,a=r((function(){i.selForContextMenu==n.doc.sel&&0==o.selectionStart&&o.selectionEnd>0&&"​"==t.prevInput?Ai(n,Yo)(n):e++<10?i.detectingSelectAll=setTimeout(a,500):(i.selForContextMenu=null,i.input.reset())}),"poll");i.detectingSelectAll=setTimeout(a,200)}}},al.prototype.readOnlyChanged=function(e){e||this.reset(),this.textarea.disabled="nocursor"==e,this.textarea.readOnly=!!e},al.prototype.setUneditable=function(){},al.prototype.needsContentAttribute=!1,r(sl,"fromTextArea"),r(ll,"addLegacyProps"),Rs(js),Xs(js);var ul="iter insert remove copy getEditor constructor".split(" ");for(var cl in Sa.prototype)Sa.prototype.hasOwnProperty(cl)&&B(ul,cl)<0&&(js.prototype[cl]=function(e){return function(){return e.apply(this.doc,arguments)}}(Sa.prototype[cl]));return we(Sa),js.inputStyles={textarea:al,contenteditable:Zs},js.defineMode=function(e){js.defaults.mode||"null"==e||(js.defaults.mode=e),$e.apply(this,arguments)},js.defineMIME=qe,js.defineMode("null",(function(){return{token:function(e){return e.skipToEnd()}}})),js.defineMIME("text/plain","null"),js.defineExtension=function(e,t){js.prototype[e]=t},js.defineDocExtension=function(e,t){Sa.prototype[e]=t},js.fromTextArea=sl,ll(js),js.version="5.65.3",js}()}(o);var a=o.exports;e.C=a;var s=i({__proto__:null,default:a},[o.exports]);e.c=s},void 0===(o=r.apply(t,i))||(e.exports=o)},6754:function(e,t,n){var r,i,o;"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self&&self,i=[t,n(535)],void 0===(o="function"==typeof(r=function(e,t){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.c=void 0;var n=Object.defineProperty,r=(e,t)=>n(e,"name",{value:t,configurable:!0});function i(e,t){return t.forEach((function(t){t&&"string"!=typeof t&&!Array.isArray(t)&&Object.keys(t).forEach((function(n){if("default"!==n&&!(n in e)){var r=Object.getOwnPropertyDescriptor(t,n);Object.defineProperty(e,n,r.get?r:{enumerable:!0,get:function(){return t[n]}})}}))})),Object.freeze(Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}))}r(i,"_mergeNamespaces");var o={exports:{}};!function(e){var t={},n=/[^\s\u00a0]/,i=e.Pos,o=e.cmpPos;function a(e){var t=e.search(n);return-1==t?0:t}function s(e,t,n){return/\bstring\b/.test(e.getTokenTypeAt(i(t.line,0)))&&!/^[\'\"\`]/.test(n)}function l(e,t){var n=e.getMode();return!1!==n.useInnerComments&&n.innerMode?e.getModeAt(t):n}r(a,"firstNonWS"),e.commands.toggleComment=function(e){e.toggleComment()},e.defineExtension("toggleComment",(function(e){e||(e=t);for(var n=this,r=1/0,o=this.listSelections(),a=null,s=o.length-1;s>=0;s--){var 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Si.objectLiteral(t)&&Si.string(t.label)&&(Si.undefined(t.textEdit)||cr.is(t))&&(Si.undefined(t.additionalTextEdits)||Si.typedArray(t.additionalTextEdits,cr.is))}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(tr||(tr={})),(Tr=nr||(nr={})).Comment="comment",Tr.Imports="imports",Tr.Region="region",function(e){function t(e,t,n,r,i,o){var a={startLine:e,endLine:t};return Si.defined(n)&&(a.startCharacter=n),Si.defined(r)&&(a.endCharacter=r),Si.defined(i)&&(a.kind=i),Si.defined(o)&&(a.collapsedText=o),a}function n(e){var t=e;return Si.objectLiteral(t)&&Si.uinteger(t.startLine)&&Si.uinteger(t.startLine)&&(Si.undefined(t.startCharacter)||Si.uinteger(t.startCharacter))&&(Si.undefined(t.endCharacter)||Si.uinteger(t.endCharacter))&&(Si.undefined(t.kind)||Si.string(t.kind))}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(rr||(rr={})),function(e){function t(e,t){return{location:e,message:t}}function n(e){var t=e;return Si.defined(t)&&Yn.is(t.location)&&Si.string(t.message)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(ir||(ir={})),(Er=or||(or={})).Error=1,Er.Warning=2,Er.Information=3,Er.Hint=4,(br=ar||(ar={})).Unnecessary=1,br.Deprecated=2,function(e){function t(e){var t=e;return Si.objectLiteral(t)&&Si.string(t.href)}g(t,"is"),e.is=t}(sr||(sr={})),function(e){function t(e,t,n,r,i,o){var a={range:e,message:t};return Si.defined(n)&&(a.severity=n),Si.defined(r)&&(a.code=r),Si.defined(i)&&(a.source=i),Si.defined(o)&&(a.relatedInformation=o),a}function n(e){var t,n=e;return Si.defined(n)&&Xn.is(n.range)&&Si.string(n.message)&&(Si.number(n.severity)||Si.undefined(n.severity))&&(Si.integer(n.code)||Si.string(n.code)||Si.undefined(n.code))&&(Si.undefined(n.codeDescription)||Si.string(null===(t=n.codeDescription)||void 0===t?void 0:t.href))&&(Si.string(n.source)||Si.undefined(n.source))&&(Si.undefined(n.relatedInformation)||Si.typedArray(n.relatedInformation,ir.is))}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(lr||(lr={})),function(e){function t(e,t){for(var n=[],r=2;r<arguments.length;r++)n[r-2]=arguments[r];var i={title:e,command:t};return Si.defined(n)&&n.length>0&&(i.arguments=n),i}function n(e){var t=e;return Si.defined(t)&&Si.string(t.title)&&Si.string(t.command)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(ur||(ur={})),function(e){function t(e,t){return{range:e,newText:t}}function n(e,t){return{range:{start:e,end:e},newText:t}}function r(e){return{range:e,newText:""}}function i(e){var t=e;return Si.objectLiteral(t)&&Si.string(t.newText)&&Xn.is(t.range)}g(t,"replace"),e.replace=t,g(n,"insert"),e.insert=n,g(r,"del"),e.del=r,g(i,"is"),e.is=i}(cr||(cr={})),function(e){function t(e,t,n){var r={label:e};return void 0!==t&&(r.needsConfirmation=t),void 0!==n&&(r.description=n),r}function n(e){var t=e;return Si.objectLiteral(t)&&Si.string(t.label)&&(Si.boolean(t.needsConfirmation)||void 0===t.needsConfirmation)&&(Si.string(t.description)||void 0===t.description)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(dr||(dr={})),function(e){function t(e){var t=e;return Si.string(t)}g(t,"is"),e.is=t}(fr||(fr={})),function(e){function t(e,t,n){return{range:e,newText:t,annotationId:n}}function n(e,t,n){return{range:{start:e,end:e},newText:t,annotationId:n}}function r(e,t){return{range:e,newText:"",annotationId:t}}function i(e){var t=e;return cr.is(t)&&(dr.is(t.annotationId)||fr.is(t.annotationId))}g(t,"replace"),e.replace=t,g(n,"insert"),e.insert=n,g(r,"del"),e.del=r,g(i,"is"),e.is=i}(pr||(pr={})),function(e){function t(e,t){return{textDocument:e,edits:t}}function n(e){var t=e;return Si.defined(t)&&Sr.is(t.textDocument)&&Array.isArray(t.edits)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(hr||(hr={})),function(e){function t(e,t,n){var r={kind:"create",uri:e};return void 0===t||void 0===t.overwrite&&void 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r={kind:"delete",uri:e};return void 0===t||void 0===t.recursive&&void 0===t.ignoreIfNotExists||(r.options=t),void 0!==n&&(r.annotationId=n),r}function n(e){var t=e;return t&&"delete"===t.kind&&Si.string(t.uri)&&(void 0===t.options||(void 0===t.options.recursive||Si.boolean(t.options.recursive))&&(void 0===t.options.ignoreIfNotExists||Si.boolean(t.options.ignoreIfNotExists)))&&(void 0===t.annotationId||fr.is(t.annotationId))}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(vr||(vr={})),function(e){function t(e){var t=e;return t&&(void 0!==t.changes||void 0!==t.documentChanges)&&(void 0===t.documentChanges||t.documentChanges.every((function(e){return Si.string(e.kind)?mr.is(e)||gr.is(e)||vr.is(e):hr.is(e)})))}g(t,"is"),e.is=t}(yr||(yr={}));var wr,Cr,Sr,xr,kr,Nr,_r,Or,Ir,Dr,Lr,Ar,Mr,Rr,Fr,Pr,jr,Vr,Ur,Br,$r,qr,Hr,Gr,zr,Wr,Kr,Qr,Xr,Yr,Jr,Zr,ei,ti,ni,ri,ii,oi,ai,si,li,ui,ci,di,fi,pi,hi,mi,gi,vi,yi,bi,Ei,Ti,wi=function(){function e(e,t){this.edits=e,this.changeAnnotations=t}return g(e,"TextEditChangeImpl"),e.prototype.insert=function(e,t,n){var r,i;if(void 0===n?r=cr.insert(e,t):fr.is(n)?(i=n,r=pr.insert(e,t,n)):(this.assertChangeAnnotations(this.changeAnnotations),i=this.changeAnnotations.manage(n),r=pr.insert(e,t,i)),this.edits.push(r),void 0!==i)return i},e.prototype.replace=function(e,t,n){var r,i;if(void 0===n?r=cr.replace(e,t):fr.is(n)?(i=n,r=pr.replace(e,t,n)):(this.assertChangeAnnotations(this.changeAnnotations),i=this.changeAnnotations.manage(n),r=pr.replace(e,t,i)),this.edits.push(r),void 0!==i)return i},e.prototype.delete=function(e,t){var n,r;if(void 0===t?n=cr.del(e):fr.is(t)?(r=t,n=pr.del(e,t)):(this.assertChangeAnnotations(this.changeAnnotations),r=this.changeAnnotations.manage(t),n=pr.del(e,r)),this.edits.push(n),void 0!==r)return r},e.prototype.add=function(e){this.edits.push(e)},e.prototype.all=function(){return this.edits},e.prototype.clear=function(){this.edits.splice(0,this.edits.length)},e.prototype.assertChangeAnnotations=function(e){if(void 0===e)throw new Error("Text edit change is not configured to manage change annotations.")},e}(),Ci=function(){function e(e){this._annotations=void 0===e?Object.create(null):e,this._counter=0,this._size=0}return g(e,"ChangeAnnotations"),e.prototype.all=function(){return this._annotations},Object.defineProperty(e.prototype,"size",{get:function(){return this._size},enumerable:!1,configurable:!0}),e.prototype.manage=function(e,t){var n;if(fr.is(e)?n=e:(n=this.nextId(),t=e),void 0!==this._annotations[n])throw new Error("Id ".concat(n," is already in use."));if(void 0===t)throw new Error("No annotation provided for id ".concat(n));return this._annotations[n]=t,this._size++,n},e.prototype.nextId=function(){return this._counter++,this._counter.toString()},e}();(function(){function e(e){var t=this;this._textEditChanges=Object.create(null),void 0!==e?(this._workspaceEdit=e,e.documentChanges?(this._changeAnnotations=new Ci(e.changeAnnotations),e.changeAnnotations=this._changeAnnotations.all(),e.documentChanges.forEach((function(e){if(hr.is(e)){var n=new wi(e.edits,t._changeAnnotations);t._textEditChanges[e.textDocument.uri]=n}}))):e.changes&&Object.keys(e.changes).forEach((function(n){var r=new wi(e.changes[n]);t._textEditChanges[n]=r}))):this._workspaceEdit={}}g(e,"WorkspaceChange"),Object.defineProperty(e.prototype,"edit",{get:function(){return this.initDocumentChanges(),void 0!==this._changeAnnotations&&(0===this._changeAnnotations.size?this._workspaceEdit.changeAnnotations=void 0:this._workspaceEdit.changeAnnotations=this._changeAnnotations.all()),this._workspaceEdit},enumerable:!1,configurable:!0}),e.prototype.getTextEditChange=function(e){if(Sr.is(e)){if(this.initDocumentChanges(),void 0===this._workspaceEdit.documentChanges)throw new Error("Workspace edit is not configured for document changes.");var t={uri:e.uri,version:e.version};if(!(r=this._textEditChanges[t.uri])){var n={textDocument:t,edits:i=[]};this._workspaceEdit.documentChanges.push(n),r=new wi(i,this._changeAnnotations),this._textEditChanges[t.uri]=r}return r}if(this.initChanges(),void 0===this._workspaceEdit.changes)throw new Error("Workspace edit is not configured for normal text edit changes.");var r;if(!(r=this._textEditChanges[e])){var i=[];this._workspaceEdit.changes[e]=i,r=new wi(i),this._textEditChanges[e]=r}return r},e.prototype.initDocumentChanges=function(){void 0===this._workspaceEdit.documentChanges&&void 0===this._workspaceEdit.changes&&(this._changeAnnotations=new Ci,this._workspaceEdit.documentChanges=[],this._workspaceEdit.changeAnnotations=this._changeAnnotations.all())},e.prototype.initChanges=function(){void 0===this._workspaceEdit.documentChanges&&void 0===this._workspaceEdit.changes&&(this._workspaceEdit.changes=Object.create(null))},e.prototype.createFile=function(e,t,n){if(this.initDocumentChanges(),void 0===this._workspaceEdit.documentChanges)throw new Error("Workspace edit is not configured for document changes.");var r,i,o;if(dr.is(t)||fr.is(t)?r=t:n=t,void 0===r?i=mr.create(e,n):(o=fr.is(r)?r:this._changeAnnotations.manage(r),i=mr.create(e,n,o)),this._workspaceEdit.documentChanges.push(i),void 0!==o)return o},e.prototype.renameFile=function(e,t,n,r){if(this.initDocumentChanges(),void 0===this._workspaceEdit.documentChanges)throw new Error("Workspace edit is not configured for document changes.");var i,o,a;if(dr.is(n)||fr.is(n)?i=n:r=n,void 0===i?o=gr.create(e,t,r):(a=fr.is(i)?i:this._changeAnnotations.manage(i),o=gr.create(e,t,r,a)),this._workspaceEdit.documentChanges.push(o),void 0!==a)return a},e.prototype.deleteFile=function(e,t,n){if(this.initDocumentChanges(),void 0===this._workspaceEdit.documentChanges)throw new Error("Workspace edit is not configured for document changes.");var r,i,o;if(dr.is(t)||fr.is(t)?r=t:n=t,void 0===r?i=vr.create(e,n):(o=fr.is(r)?r:this._changeAnnotations.manage(r),i=vr.create(e,n,o)),this._workspaceEdit.documentChanges.push(i),void 0!==o)return o}})(),function(e){function t(e){return{uri:e}}function n(e){var t=e;return Si.defined(t)&&Si.string(t.uri)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(wr||(wr={})),function(e){function t(e,t){return{uri:e,version:t}}function n(e){var t=e;return Si.defined(t)&&Si.string(t.uri)&&Si.integer(t.version)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(Cr||(Cr={})),function(e){function t(e,t){return{uri:e,version:t}}function n(e){var t=e;return Si.defined(t)&&Si.string(t.uri)&&(null===t.version||Si.integer(t.version))}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(Sr||(Sr={})),function(e){function t(e,t,n,r){return{uri:e,languageId:t,version:n,text:r}}function n(e){var t=e;return Si.defined(t)&&Si.string(t.uri)&&Si.string(t.languageId)&&Si.integer(t.version)&&Si.string(t.text)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(xr||(xr={})),function(e){function t(t){var n=t;return n===e.PlainText||n===e.Markdown}e.PlainText="plaintext",e.Markdown="markdown",g(t,"is"),e.is=t}(kr||(kr={})),function(e){function t(e){var t=e;return Si.objectLiteral(e)&&kr.is(t.kind)&&Si.string(t.value)}g(t,"is"),e.is=t}(Nr||(Nr={})),(Ti=_r||(_r={})).Text=1,Ti.Method=2,Ti.Function=3,Ti.Constructor=4,Ti.Field=5,Ti.Variable=6,Ti.Class=7,Ti.Interface=8,Ti.Module=9,Ti.Property=10,Ti.Unit=11,Ti.Value=12,Ti.Enum=13,Ti.Keyword=14,Ti.Snippet=15,Ti.Color=16,Ti.File=17,Ti.Reference=18,Ti.Folder=19,Ti.EnumMember=20,Ti.Constant=21,Ti.Struct=22,Ti.Event=23,Ti.Operator=24,Ti.TypeParameter=25,(Ei=Or||(Or={})).PlainText=1,Ei.Snippet=2,(Ir||(Ir={})).Deprecated=1,function(e){function t(e,t,n){return{newText:e,insert:t,replace:n}}function n(e){var t=e;return t&&Si.string(t.newText)&&Xn.is(t.insert)&&Xn.is(t.replace)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(Dr||(Dr={})),(bi=Lr||(Lr={})).asIs=1,bi.adjustIndentation=2,function(e){function t(e){var t=e;return t&&(Si.string(t.detail)||void 0===t.detail)&&(Si.string(t.description)||void 0===t.description)}g(t,"is"),e.is=t}(Ar||(Ar={})),function(e){function t(e){return{label:e}}g(t,"create"),e.create=t}(Mr||(Mr={})),function(e){function t(e,t){return{items:e||[],isIncomplete:!!t}}g(t,"create"),e.create=t}(Rr||(Rr={})),function(e){function t(e){return e.replace(/[\\`*_{}[\]()#+\-.!]/g,"\\$&")}function n(e){var t=e;return Si.string(t)||Si.objectLiteral(t)&&Si.string(t.language)&&Si.string(t.value)}g(t,"fromPlainText"),e.fromPlainText=t,g(n,"is"),e.is=n}(Fr||(Fr={})),function(e){function t(e){var t=e;return!!t&&Si.objectLiteral(t)&&(Nr.is(t.contents)||Fr.is(t.contents)||Si.typedArray(t.contents,Fr.is))&&(void 0===e.range||Xn.is(e.range))}g(t,"is"),e.is=t}(Pr||(Pr={})),function(e){function t(e,t){return t?{label:e,documentation:t}:{label:e}}g(t,"create"),e.create=t}(jr||(jr={})),function(e){function t(e,t){for(var n=[],r=2;r<arguments.length;r++)n[r-2]=arguments[r];var i={label:e};return Si.defined(t)&&(i.documentation=t),Si.defined(n)?i.parameters=n:i.parameters=[],i}g(t,"create"),e.create=t}(Vr||(Vr={})),(yi=Ur||(Ur={})).Text=1,yi.Read=2,yi.Write=3,function(e){function t(e,t){var n={range:e};return Si.number(t)&&(n.kind=t),n}g(t,"create"),e.create=t}(Br||(Br={})),(vi=$r||($r={})).File=1,vi.Module=2,vi.Namespace=3,vi.Package=4,vi.Class=5,vi.Method=6,vi.Property=7,vi.Field=8,vi.Constructor=9,vi.Enum=10,vi.Interface=11,vi.Function=12,vi.Variable=13,vi.Constant=14,vi.String=15,vi.Number=16,vi.Boolean=17,vi.Array=18,vi.Object=19,vi.Key=20,vi.Null=21,vi.EnumMember=22,vi.Struct=23,vi.Event=24,vi.Operator=25,vi.TypeParameter=26,(qr||(qr={})).Deprecated=1,function(e){function t(e,t,n,r,i){var o={name:e,kind:t,location:{uri:r,range:n}};return 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0===t.tags||Array.isArray(t.tags))}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(zr||(zr={})),(gi=Wr||(Wr={})).Empty="",gi.QuickFix="quickfix",gi.Refactor="refactor",gi.RefactorExtract="refactor.extract",gi.RefactorInline="refactor.inline",gi.RefactorRewrite="refactor.rewrite",gi.Source="source",gi.SourceOrganizeImports="source.organizeImports",gi.SourceFixAll="source.fixAll",(mi=Kr||(Kr={})).Invoked=1,mi.Automatic=2,function(e){function t(e,t,n){var r={diagnostics:e};return null!=t&&(r.only=t),null!=n&&(r.triggerKind=n),r}function n(e){var t=e;return Si.defined(t)&&Si.typedArray(t.diagnostics,lr.is)&&(void 0===t.only||Si.typedArray(t.only,Si.string))&&(void 0===t.triggerKind||t.triggerKind===Kr.Invoked||t.triggerKind===Kr.Automatic)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(Qr||(Qr={})),function(e){function t(e,t,n){var r={title:e},i=!0;return"string"==typeof t?(i=!1,r.kind=t):ur.is(t)?r.command=t:r.edit=t,i&&void 0!==n&&(r.kind=n),r}function n(e){var t=e;return t&&Si.string(t.title)&&(void 0===t.diagnostics||Si.typedArray(t.diagnostics,lr.is))&&(void 0===t.kind||Si.string(t.kind))&&(void 0!==t.edit||void 0!==t.command)&&(void 0===t.command||ur.is(t.command))&&(void 0===t.isPreferred||Si.boolean(t.isPreferred))&&(void 0===t.edit||yr.is(t.edit))}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(Xr||(Xr={})),function(e){function t(e,t){var n={range:e};return Si.defined(t)&&(n.data=t),n}function n(e){var t=e;return Si.defined(t)&&Xn.is(t.range)&&(Si.undefined(t.command)||ur.is(t.command))}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(Yr||(Yr={})),function(e){function t(e,t){return{tabSize:e,insertSpaces:t}}function n(e){var t=e;return Si.defined(t)&&Si.uinteger(t.tabSize)&&Si.boolean(t.insertSpaces)}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(Jr||(Jr={})),function(e){function t(e,t,n){return{range:e,target:t,data:n}}function n(e){var t=e;return Si.defined(t)&&Xn.is(t.range)&&(Si.undefined(t.target)||Si.string(t.target))}g(t,"create"),e.create=t,g(n,"is"),e.is=n}(Zr||(Zr={})),function(e){function t(e,t){return{range:e,parent:t}}function n(t){var n=t;return Si.objectLiteral(n)&&Xn.is(n.range)&&(void 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Kh={Aacute:"Á",aacute:"á",Abreve:"Ă",abreve:"ă",ac:"∾",acd:"∿",acE:"∾̳",Acirc:"Â",acirc:"â",acute:"´",Acy:"А",acy:"а",AElig:"Æ",aelig:"æ",af:"⁡",Afr:"𝔄",afr:"𝔞",Agrave:"À",agrave:"à",alefsym:"ℵ",aleph:"ℵ",Alpha:"Α",alpha:"α",Amacr:"Ā",amacr:"ā",amalg:"⨿",amp:"&",AMP:"&",andand:"⩕",And:"⩓",and:"∧",andd:"⩜",andslope:"⩘",andv:"⩚",ang:"∠",ange:"⦤",angle:"∠",angmsdaa:"⦨",angmsdab:"⦩",angmsdac:"⦪",angmsdad:"⦫",angmsdae:"⦬",angmsdaf:"⦭",angmsdag:"⦮",angmsdah:"⦯",angmsd:"∡",angrt:"∟",angrtvb:"⊾",angrtvbd:"⦝",angsph:"∢",angst:"Å",angzarr:"⍼",Aogon:"Ą",aogon:"ą",Aopf:"𝔸",aopf:"𝕒",apacir:"⩯",ap:"≈",apE:"⩰",ape:"≊",apid:"≋",apos:"'",ApplyFunction:"⁡",approx:"≈",approxeq:"≊",Aring:"Å",aring:"å",Ascr:"𝒜",ascr:"𝒶",Assign:"≔",ast:"*",asymp:"≈",asympeq:"≍",Atilde:"Ã",atilde:"ã",Auml:"Ä",auml:"ä",awconint:"∳",awint:"⨑",backcong:"≌",backepsilon:"϶",backprime:"‵",backsim:"∽",backsimeq:"⋍",Backslash:"∖",Barv:"⫧",barvee:"⊽",barwed:"⌅",Barwed:"⌆",barwedge:"⌅",bbrk:"⎵",bbrktbrk:"⎶",bcong:"≌",Bcy:"Б",bcy:"б",bdquo:"„",becaus:"∵",because:"∵",Because:"∵",bemptyv:"⦰",bepsi:"϶",bernou:"ℬ",Bernoullis:"ℬ",Beta:"Β",beta:"β",beth:"ℶ",between:"≬",Bfr:"𝔅",bfr:"𝔟",bigcap:"⋂",bigcirc:"◯",bigcup:"⋃",bigodot:"⨀",bigoplus:"⨁",bigotimes:"⨂",bigsqcup:"⨆",bigstar:"★",bigtriangledown:"▽",bigtriangleup:"△",biguplus:"⨄",bigvee:"⋁",bigwedge:"⋀",bkarow:"⤍",blacklozenge:"⧫",blacksquare:"▪",blacktriangle:"▴",blacktriangledown:"▾",blacktriangleleft:"◂",blacktriangleright:"▸",blank:"␣",blk12:"▒",blk14:"░",blk34:"▓",block:"█",bne:"=⃥",bnequiv:"≡⃥",bNot:"⫭",bnot:"⌐",Bopf:"𝔹",bopf:"𝕓",bot:"⊥",bottom:"⊥",bowtie:"⋈",boxbox:"⧉",boxdl:"┐",boxdL:"╕",boxDl:"╖",boxDL:"╗",boxdr:"┌",boxdR:"╒",boxDr:"╓",boxDR:"╔",boxh:"─",boxH:"═",boxhd:"┬",boxHd:"╤",boxhD:"╥",boxHD:"╦",boxhu:"┴",boxHu:"╧",boxhU:"╨",boxHU:"╩",boxminus:"⊟",boxplus:"⊞",boxtimes:"⊠",boxul:"┘",boxuL:"╛",boxUl:"╜",boxUL:"╝",boxur:"└",boxuR:"╘",boxUr:"╙",boxUR:"╚",boxv:"│",boxV:"║",boxvh:"┼",boxvH:"╪",boxVh:"╫",boxVH:"╬",boxvl:"┤",boxvL:"╡",boxVl:"╢",boxVL:"╣",boxvr:"├",boxvR:"╞",boxVr:"╟",boxVR:"╠",bprime:"‵",breve:"˘",Breve:"˘",brvbar:"¦",bscr:"𝒷",Bscr:"ℬ",bsemi:"⁏",bsim:"∽",bsime:"⋍",bsolb:"⧅",bsol:"\\",bsolhsub:"⟈",bull:"•",bullet:"•",bump:"≎",bumpE:"⪮",bumpe:"≏",Bumpeq:"≎",bumpeq:"≏",Cacute:"Ć",cacute:"ć",capand:"⩄",capbrcup:"⩉",capcap:"⩋",cap:"∩",Cap:"⋒",capcup:"⩇",capdot:"⩀",CapitalDifferentialD:"ⅅ",caps:"∩︀",caret:"⁁",caron:"ˇ",Cayleys:"ℭ",ccaps:"⩍",Ccaron:"Č",ccaron:"č",Ccedil:"Ç",ccedil:"ç",Ccirc:"Ĉ",ccirc:"ĉ",Cconint:"∰",ccups:"⩌",ccupssm:"⩐",Cdot:"Ċ",cdot:"ċ",cedil:"¸",Cedilla:"¸",cemptyv:"⦲",cent:"¢",centerdot:"·",CenterDot:"·",cfr:"𝔠",Cfr:"ℭ",CHcy:"Ч",chcy:"ч",check:"✓",checkmark:"✓",Chi:"Χ",chi:"χ",circ:"ˆ",circeq:"≗",circlearrowleft:"↺",circlearrowright:"↻",circledast:"⊛",circledcirc:"⊚",circleddash:"⊝",CircleDot:"⊙",circledR:"®",circledS:"Ⓢ",CircleMinus:"⊖",CirclePlus:"⊕",CircleTimes:"⊗",cir:"○",cirE:"⧃",cire:"≗",cirfnint:"⨐",cirmid:"⫯",cirscir:"⧂",ClockwiseContourIntegral:"∲",CloseCurlyDoubleQuote:"”",CloseCurlyQuote:"’",clubs:"♣",clubsuit:"♣",colon:":",Colon:"∷",Colone:"⩴",colone:"≔",coloneq:"≔",comma:",",commat:"@",comp:"∁",compfn:"∘",complement:"∁",complexes:"ℂ",cong:"≅",congdot:"⩭",Congruent:"≡",conint:"∮",Conint:"∯",ContourIntegral:"∮",copf:"𝕔",Copf:"ℂ",coprod:"∐",Coproduct:"∐",copy:"©",COPY:"©",copysr:"℗",CounterClockwiseContourIntegral:"∳",crarr:"↵",cross:"✗",Cross:"⨯",Cscr:"𝒞",cscr:"𝒸",csub:"⫏",csube:"⫑",csup:"⫐",csupe:"⫒",ctdot:"⋯",cudarrl:"⤸",cudarrr:"⤵",cuepr:"⋞",cuesc:"⋟",cularr:"↶",cularrp:"⤽",cupbrcap:"⩈",cupcap:"⩆",CupCap:"≍",cup:"∪",Cup:"⋓",cupcup:"⩊",cupdot:"⊍",cupor:"⩅",cups:"∪︀",curarr:"↷",curarrm:"⤼",curlyeqprec:"⋞",curlyeqsucc:"⋟",curlyvee:"⋎",curlywedge:"⋏",curren:"¤",curvearrowleft:"↶",curvearrowright:"↷",cuvee:"⋎",cuwed:"⋏",cwconint:"∲",cwint:"∱",cylcty:"⌭",dagger:"†",Dagger:"‡",daleth:"ℸ",darr:"↓",Darr:"↡",dArr:"⇓",dash:"‐",Dashv:"⫤",dashv:"⊣",dbkarow:"⤏",dblac:"˝",Dcaron:"Ď",dcaron:"ď",Dcy:"Д",dcy:"д",ddagger:"‡",ddarr:"⇊",DD:"ⅅ",dd:"ⅆ",DDotrahd:"⤑",ddotseq:"⩷",deg:"°",Del:"∇",Delta:"Δ",delta:"δ",demptyv:"⦱",dfisht:"⥿",Dfr:"𝔇",dfr:"𝔡",dHar:"⥥",dharl:"⇃",dharr:"⇂",DiacriticalAcute:"´",DiacriticalDot:"˙",DiacriticalDoubleAcute:"˝",DiacriticalGrave:"`",DiacriticalTilde:"˜",diam:"⋄",diamond:"⋄",Diamond:"⋄",diamondsuit:"♦",diams:"♦",die:"¨",DifferentialD:"ⅆ",digamma:"ϝ",disin:"⋲",div:"÷",divide:"÷",divideontimes:"⋇",divonx:"⋇",DJcy:"Ђ",djcy:"ђ",dlcorn:"⌞",dlcrop:"⌍",dollar:"$",Dopf:"𝔻",dopf:"𝕕",Dot:"¨",dot:"˙",DotDot:"⃜",doteq:"≐",doteqdot:"≑",DotEqual:"≐",dotminus:"∸",dotplus:"∔",dotsquare:"⊡",doublebarwedge:"⌆",DoubleContourIntegral:"∯",DoubleDot:"¨",DoubleDownArrow:"⇓",DoubleLeftArrow:"⇐",DoubleLeftRightArrow:"⇔",DoubleLeftTee:"⫤",DoubleLongLeftArrow:"⟸",DoubleLongLeftRightArrow:"⟺",DoubleLongRightArrow:"⟹",DoubleRightArrow:"⇒",DoubleRightTee:"⊨",DoubleUpArrow:"⇑",DoubleUpDownArrow:"⇕",DoubleVerticalBar:"∥",DownArrowBar:"⤓",downarrow:"↓",DownArrow:"↓",Downarrow:"⇓",DownArrowUpArrow:"⇵",DownBreve:"̑",downdownarrows:"⇊",downharpoonleft:"⇃",downharpoonright:"⇂",DownLeftRightVector:"⥐",DownLeftTeeVector:"⥞",DownLeftVectorBar:"⥖",DownLeftVector:"↽",DownRightTeeVector:"⥟",DownRightVectorBar:"⥗",DownRightVector:"⇁",DownTeeArrow:"↧",DownTee:"⊤",drbkarow:"⤐",drcorn:"⌟",drcrop:"⌌",Dscr:"𝒟",dscr:"𝒹",DScy:"Ѕ",dscy:"ѕ",dsol:"⧶",Dstrok:"Đ",dstrok:"đ",dtdot:"⋱",dtri:"▿",dtrif:"▾",duarr:"⇵",duhar:"⥯",dwangle:"⦦",DZcy:"Џ",dzcy:"џ",dzigrarr:"⟿",Eacute:"É",eacute:"é",easter:"⩮",Ecaron:"Ě",ecaron:"ě",Ecirc:"Ê",ecirc:"ê",ecir:"≖",ecolon:"≕",Ecy:"Э",ecy:"э",eDDot:"⩷",Edot:"Ė",edot:"ė",eDot:"≑",ee:"ⅇ",efDot:"≒",Efr:"𝔈",efr:"𝔢",eg:"⪚",Egrave:"È",egrave:"è",egs:"⪖",egsdot:"⪘",el:"⪙",Element:"∈",elinters:"⏧",ell:"ℓ",els:"⪕",elsdot:"⪗",Emacr:"Ē",emacr:"ē",empty:"∅",emptyset:"∅",EmptySmallSquare:"◻",emptyv:"∅",EmptyVerySmallSquare:"▫",emsp13:" ",emsp14:" ",emsp:" ",ENG:"Ŋ",eng:"ŋ",ensp:" ",Eogon:"Ę",eogon:"ę",Eopf:"𝔼",eopf:"𝕖",epar:"⋕",eparsl:"⧣",eplus:"⩱",epsi:"ε",Epsilon:"Ε",epsilon:"ε",epsiv:"ϵ",eqcirc:"≖",eqcolon:"≕",eqsim:"≂",eqslantgtr:"⪖",eqslantless:"⪕",Equal:"⩵",equals:"=",EqualTilde:"≂",equest:"≟",Equilibrium:"⇌",equiv:"≡",equivDD:"⩸",eqvparsl:"⧥",erarr:"⥱",erDot:"≓",escr:"ℯ",Escr:"ℰ",esdot:"≐",Esim:"⩳",esim:"≂",Eta:"Η",eta:"η",ETH:"Ð",eth:"ð",Euml:"Ë",euml:"ë",euro:"€",excl:"!",exist:"∃",Exists:"∃",expectation:"ℰ",exponentiale:"ⅇ",ExponentialE:"ⅇ",fallingdotseq:"≒",Fcy:"Ф",fcy:"ф",female:"♀",ffilig:"ffi",fflig:"ff",ffllig:"ffl",Ffr:"𝔉",ffr:"𝔣",filig:"fi",FilledSmallSquare:"◼",FilledVerySmallSquare:"▪",fjlig:"fj",flat:"♭",fllig:"fl",fltns:"▱",fnof:"ƒ",Fopf:"𝔽",fopf:"𝕗",forall:"∀",ForAll:"∀",fork:"⋔",forkv:"⫙",Fouriertrf:"ℱ",fpartint:"⨍",frac12:"½",frac13:"⅓",frac14:"¼",frac15:"⅕",frac16:"⅙",frac18:"⅛",frac23:"⅔",frac25:"⅖",frac34:"¾",frac35:"⅗",frac38:"⅜",frac45:"⅘",frac56:"⅚",frac58:"⅝",frac78:"⅞",frasl:"⁄",frown:"⌢",fscr:"𝒻",Fscr:"ℱ",gacute:"ǵ",Gamma:"Γ",gamma:"γ",Gammad:"Ϝ",gammad:"ϝ",gap:"⪆",Gbreve:"Ğ",gbreve:"ğ",Gcedil:"Ģ",Gcirc:"Ĝ",gcirc:"ĝ",Gcy:"Г",gcy:"г",Gdot:"Ġ",gdot:"ġ",ge:"≥",gE:"≧",gEl:"⪌",gel:"⋛",geq:"≥",geqq:"≧",geqslant:"⩾",gescc:"⪩",ges:"⩾",gesdot:"⪀",gesdoto:"⪂",gesdotol:"⪄",gesl:"⋛︀",gesles:"⪔",Gfr:"𝔊",gfr:"𝔤",gg:"≫",Gg:"⋙",ggg:"⋙",gimel:"ℷ",GJcy:"Ѓ",gjcy:"ѓ",gla:"⪥",gl:"≷",glE:"⪒",glj:"⪤",gnap:"⪊",gnapprox:"⪊",gne:"⪈",gnE:"≩",gneq:"⪈",gneqq:"≩",gnsim:"⋧",Gopf:"𝔾",gopf:"𝕘",grave:"`",GreaterEqual:"≥",GreaterEqualLess:"⋛",GreaterFullEqual:"≧",GreaterGreater:"⪢",GreaterLess:"≷",GreaterSlantEqual:"⩾",GreaterTilde:"≳",Gscr:"𝒢",gscr:"ℊ",gsim:"≳",gsime:"⪎",gsiml:"⪐",gtcc:"⪧",gtcir:"⩺",gt:">",GT:">",Gt:"≫",gtdot:"⋗",gtlPar:"⦕",gtquest:"⩼",gtrapprox:"⪆",gtrarr:"⥸",gtrdot:"⋗",gtreqless:"⋛",gtreqqless:"⪌",gtrless:"≷",gtrsim:"≳",gvertneqq:"≩︀",gvnE:"≩︀",Hacek:"ˇ",hairsp:" ",half:"½",hamilt:"ℋ",HARDcy:"Ъ",hardcy:"ъ",harrcir:"⥈",harr:"↔",hArr:"⇔",harrw:"↭",Hat:"^",hbar:"ℏ",Hcirc:"Ĥ",hcirc:"ĥ",hearts:"♥",heartsuit:"♥",hellip:"…",hercon:"⊹",hfr:"𝔥",Hfr:"ℌ",HilbertSpace:"ℋ",hksearow:"⤥",hkswarow:"⤦",hoarr:"⇿",homtht:"∻",hookleftarrow:"↩",hookrightarrow:"↪",hopf:"𝕙",Hopf:"ℍ",horbar:"―",HorizontalLine:"─",hscr:"𝒽",Hscr:"ℋ",hslash:"ℏ",Hstrok:"Ħ",hstrok:"ħ",HumpDownHump:"≎",HumpEqual:"≏",hybull:"⁃",hyphen:"‐",Iacute:"Í",iacute:"í",ic:"⁣",Icirc:"Î",icirc:"î",Icy:"И",icy:"и",Idot:"İ",IEcy:"Е",iecy:"е",iexcl:"¡",iff:"⇔",ifr:"𝔦",Ifr:"ℑ",Igrave:"Ì",igrave:"ì",ii:"ⅈ",iiiint:"⨌",iiint:"∭",iinfin:"⧜",iiota:"℩",IJlig:"IJ",ijlig:"ij",Imacr:"Ī",imacr:"ī",image:"ℑ",ImaginaryI:"ⅈ",imagline:"ℐ",imagpart:"ℑ",imath:"ı",Im:"ℑ",imof:"⊷",imped:"Ƶ",Implies:"⇒",incare:"℅",in:"∈",infin:"∞",infintie:"⧝",inodot:"ı",intcal:"⊺",int:"∫",Int:"∬",integers:"ℤ",Integral:"∫",intercal:"⊺",Intersection:"⋂",intlarhk:"⨗",intprod:"⨼",InvisibleComma:"⁣",InvisibleTimes:"⁢",IOcy:"Ё",iocy:"ё",Iogon:"Į",iogon:"į",Iopf:"𝕀",iopf:"𝕚",Iota:"Ι",iota:"ι",iprod:"⨼",iquest:"¿",iscr:"𝒾",Iscr:"ℐ",isin:"∈",isindot:"⋵",isinE:"⋹",isins:"⋴",isinsv:"⋳",isinv:"∈",it:"⁢",Itilde:"Ĩ",itilde:"ĩ",Iukcy:"І",iukcy:"і",Iuml:"Ï",iuml:"ï",Jcirc:"Ĵ",jcirc:"ĵ",Jcy:"Й",jcy:"й",Jfr:"𝔍",jfr:"𝔧",jmath:"ȷ",Jopf:"𝕁",jopf:"𝕛",Jscr:"𝒥",jscr:"𝒿",Jsercy:"Ј",jsercy:"ј",Jukcy:"Є",jukcy:"є",Kappa:"Κ",kappa:"κ",kappav:"ϰ",Kcedil:"Ķ",kcedil:"ķ",Kcy:"К",kcy:"к",Kfr:"𝔎",kfr:"𝔨",kgreen:"ĸ",KHcy:"Х",khcy:"х",KJcy:"Ќ",kjcy:"ќ",Kopf:"𝕂",kopf:"𝕜",Kscr:"𝒦",kscr:"𝓀",lAarr:"⇚",Lacute:"Ĺ",lacute:"ĺ",laemptyv:"⦴",lagran:"ℒ",Lambda:"Λ",lambda:"λ",lang:"⟨",Lang:"⟪",langd:"⦑",langle:"⟨",lap:"⪅",Laplacetrf:"ℒ",laquo:"«",larrb:"⇤",larrbfs:"⤟",larr:"←",Larr:"↞",lArr:"⇐",larrfs:"⤝",larrhk:"↩",larrlp:"↫",larrpl:"⤹",larrsim:"⥳",larrtl:"↢",latail:"⤙",lAtail:"⤛",lat:"⪫",late:"⪭",lates:"⪭︀",lbarr:"⤌",lBarr:"⤎",lbbrk:"❲",lbrace:"{",lbrack:"[",lbrke:"⦋",lbrksld:"⦏",lbrkslu:"⦍",Lcaron:"Ľ",lcaron:"ľ",Lcedil:"Ļ",lcedil:"ļ",lceil:"⌈",lcub:"{",Lcy:"Л",lcy:"л",ldca:"⤶",ldquo:"“",ldquor:"„",ldrdhar:"⥧",ldrushar:"⥋",ldsh:"↲",le:"≤",lE:"≦",LeftAngleBracket:"⟨",LeftArrowBar:"⇤",leftarrow:"←",LeftArrow:"←",Leftarrow:"⇐",LeftArrowRightArrow:"⇆",leftarrowtail:"↢",LeftCeiling:"⌈",LeftDoubleBracket:"⟦",LeftDownTeeVector:"⥡",LeftDownVectorBar:"⥙",LeftDownVector:"⇃",LeftFloor:"⌊",leftharpoondown:"↽",leftharpoonup:"↼",leftleftarrows:"⇇",leftrightarrow:"↔",LeftRightArrow:"↔",Leftrightarrow:"⇔",leftrightarrows:"⇆",leftrightharpoons:"⇋",leftrightsquigarrow:"↭",LeftRightVector:"⥎",LeftTeeArrow:"↤",LeftTee:"⊣",LeftTeeVector:"⥚",leftthreetimes:"⋋",LeftTriangleBar:"⧏",LeftTriangle:"⊲",LeftTriangleEqual:"⊴",LeftUpDownVector:"⥑",LeftUpTeeVector:"⥠",LeftUpVectorBar:"⥘",LeftUpVector:"↿",LeftVectorBar:"⥒",LeftVector:"↼",lEg:"⪋",leg:"⋚",leq:"≤",leqq:"≦",leqslant:"⩽",lescc:"⪨",les:"⩽",lesdot:"⩿",lesdoto:"⪁",lesdotor:"⪃",lesg:"⋚︀",lesges:"⪓",lessapprox:"⪅",lessdot:"⋖",lesseqgtr:"⋚",lesseqqgtr:"⪋",LessEqualGreater:"⋚",LessFullEqual:"≦",LessGreater:"≶",lessgtr:"≶",LessLess:"⪡",lesssim:"≲",LessSlantEqual:"⩽",LessTilde:"≲",lfisht:"⥼",lfloor:"⌊",Lfr:"𝔏",lfr:"𝔩",lg:"≶",lgE:"⪑",lHar:"⥢",lhard:"↽",lharu:"↼",lharul:"⥪",lhblk:"▄",LJcy:"Љ",ljcy:"љ",llarr:"⇇",ll:"≪",Ll:"⋘",llcorner:"⌞",Lleftarrow:"⇚",llhard:"⥫",lltri:"◺",Lmidot:"Ŀ",lmidot:"ŀ",lmoustache:"⎰",lmoust:"⎰",lnap:"⪉",lnapprox:"⪉",lne:"⪇",lnE:"≨",lneq:"⪇",lneqq:"≨",lnsim:"⋦",loang:"⟬",loarr:"⇽",lobrk:"⟦",longleftarrow:"⟵",LongLeftArrow:"⟵",Longleftarrow:"⟸",longleftrightarrow:"⟷",LongLeftRightArrow:"⟷",Longleftrightarrow:"⟺",longmapsto:"⟼",longrightarrow:"⟶",LongRightArrow:"⟶",Longrightarrow:"⟹",looparrowleft:"↫",looparrowright:"↬",lopar:"⦅",Lopf:"𝕃",lopf:"𝕝",loplus:"⨭",lotimes:"⨴",lowast:"∗",lowbar:"_",LowerLeftArrow:"↙",LowerRightArrow:"↘",loz:"◊",lozenge:"◊",lozf:"⧫",lpar:"(",lparlt:"⦓",lrarr:"⇆",lrcorner:"⌟",lrhar:"⇋",lrhard:"⥭",lrm:"‎",lrtri:"⊿",lsaquo:"‹",lscr:"𝓁",Lscr:"ℒ",lsh:"↰",Lsh:"↰",lsim:"≲",lsime:"⪍",lsimg:"⪏",lsqb:"[",lsquo:"‘",lsquor:"‚",Lstrok:"Ł",lstrok:"ł",ltcc:"⪦",ltcir:"⩹",lt:"<",LT:"<",Lt:"≪",ltdot:"⋖",lthree:"⋋",ltimes:"⋉",ltlarr:"⥶",ltquest:"⩻",ltri:"◃",ltrie:"⊴",ltrif:"◂",ltrPar:"⦖",lurdshar:"⥊",luruhar:"⥦",lvertneqq:"≨︀",lvnE:"≨︀",macr:"¯",male:"♂",malt:"✠",maltese:"✠",Map:"⤅",map:"↦",mapsto:"↦",mapstodown:"↧",mapstoleft:"↤",mapstoup:"↥",marker:"▮",mcomma:"⨩",Mcy:"М",mcy:"м",mdash:"—",mDDot:"∺",measuredangle:"∡",MediumSpace:" ",Mellintrf:"ℳ",Mfr:"𝔐",mfr:"𝔪",mho:"℧",micro:"µ",midast:"*",midcir:"⫰",mid:"∣",middot:"·",minusb:"⊟",minus:"−",minusd:"∸",minusdu:"⨪",MinusPlus:"∓",mlcp:"⫛",mldr:"…",mnplus:"∓",models:"⊧",Mopf:"𝕄",mopf:"𝕞",mp:"∓",mscr:"𝓂",Mscr:"ℳ",mstpos:"∾",Mu:"Μ",mu:"μ",multimap:"⊸",mumap:"⊸",nabla:"∇",Nacute:"Ń",nacute:"ń",nang:"∠⃒",nap:"≉",napE:"⩰̸",napid:"≋̸",napos:"ʼn",napprox:"≉",natural:"♮",naturals:"ℕ",natur:"♮",nbsp:" ",nbump:"≎̸",nbumpe:"≏̸",ncap:"⩃",Ncaron:"Ň",ncaron:"ň",Ncedil:"Ņ",ncedil:"ņ",ncong:"≇",ncongdot:"⩭̸",ncup:"⩂",Ncy:"Н",ncy:"н",ndash:"–",nearhk:"⤤",nearr:"↗",neArr:"⇗",nearrow:"↗",ne:"≠",nedot:"≐̸",NegativeMediumSpace:"​",NegativeThickSpace:"​",NegativeThinSpace:"​",NegativeVeryThinSpace:"​",nequiv:"≢",nesear:"⤨",nesim:"≂̸",NestedGreaterGreater:"≫",NestedLessLess:"≪",NewLine:"\n",nexist:"∄",nexists:"∄",Nfr:"𝔑",nfr:"𝔫",ngE:"≧̸",nge:"≱",ngeq:"≱",ngeqq:"≧̸",ngeqslant:"⩾̸",nges:"⩾̸",nGg:"⋙̸",ngsim:"≵",nGt:"≫⃒",ngt:"≯",ngtr:"≯",nGtv:"≫̸",nharr:"↮",nhArr:"⇎",nhpar:"⫲",ni:"∋",nis:"⋼",nisd:"⋺",niv:"∋",NJcy:"Њ",njcy:"њ",nlarr:"↚",nlArr:"⇍",nldr:"‥",nlE:"≦̸",nle:"≰",nleftarrow:"↚",nLeftarrow:"⇍",nleftrightarrow:"↮",nLeftrightarrow:"⇎",nleq:"≰",nleqq:"≦̸",nleqslant:"⩽̸",nles:"⩽̸",nless:"≮",nLl:"⋘̸",nlsim:"≴",nLt:"≪⃒",nlt:"≮",nltri:"⋪",nltrie:"⋬",nLtv:"≪̸",nmid:"∤",NoBreak:"⁠",NonBreakingSpace:" ",nopf:"𝕟",Nopf:"ℕ",Not:"⫬",not:"¬",NotCongruent:"≢",NotCupCap:"≭",NotDoubleVerticalBar:"∦",NotElement:"∉",NotEqual:"≠",NotEqualTilde:"≂̸",NotExists:"∄",NotGreater:"≯",NotGreaterEqual:"≱",NotGreaterFullEqual:"≧̸",NotGreaterGreater:"≫̸",NotGreaterLess:"≹",NotGreaterSlantEqual:"⩾̸",NotGreaterTilde:"≵",NotHumpDownHump:"≎̸",NotHumpEqual:"≏̸",notin:"∉",notindot:"⋵̸",notinE:"⋹̸",notinva:"∉",notinvb:"⋷",notinvc:"⋶",NotLeftTriangleBar:"⧏̸",NotLeftTriangle:"⋪",NotLeftTriangleEqual:"⋬",NotLess:"≮",NotLessEqual:"≰",NotLessGreater:"≸",NotLessLess:"≪̸",NotLessSlantEqual:"⩽̸",NotLessTilde:"≴",NotNestedGreaterGreater:"⪢̸",NotNestedLessLess:"⪡̸",notni:"∌",notniva:"∌",notnivb:"⋾",notnivc:"⋽",NotPrecedes:"⊀",NotPrecedesEqual:"⪯̸",NotPrecedesSlantEqual:"⋠",NotReverseElement:"∌",NotRightTriangleBar:"⧐̸",NotRightTriangle:"⋫",NotRightTriangleEqual:"⋭",NotSquareSubset:"⊏̸",NotSquareSubsetEqual:"⋢",NotSquareSuperset:"⊐̸",NotSquareSupersetEqual:"⋣",NotSubset:"⊂⃒",NotSubsetEqual:"⊈",NotSucceeds:"⊁",NotSucceedsEqual:"⪰̸",NotSucceedsSlantEqual:"⋡",NotSucceedsTilde:"≿̸",NotSuperset:"⊃⃒",NotSupersetEqual:"⊉",NotTilde:"≁",NotTildeEqual:"≄",NotTildeFullEqual:"≇",NotTildeTilde:"≉",NotVerticalBar:"∤",nparallel:"∦",npar:"∦",nparsl:"⫽⃥",npart:"∂̸",npolint:"⨔",npr:"⊀",nprcue:"⋠",nprec:"⊀",npreceq:"⪯̸",npre:"⪯̸",nrarrc:"⤳̸",nrarr:"↛",nrArr:"⇏",nrarrw:"↝̸",nrightarrow:"↛",nRightarrow:"⇏",nrtri:"⋫",nrtrie:"⋭",nsc:"⊁",nsccue:"⋡",nsce:"⪰̸",Nscr:"𝒩",nscr:"𝓃",nshortmid:"∤",nshortparallel:"∦",nsim:"≁",nsime:"≄",nsimeq:"≄",nsmid:"∤",nspar:"∦",nsqsube:"⋢",nsqsupe:"⋣",nsub:"⊄",nsubE:"⫅̸",nsube:"⊈",nsubset:"⊂⃒",nsubseteq:"⊈",nsubseteqq:"⫅̸",nsucc:"⊁",nsucceq:"⪰̸",nsup:"⊅",nsupE:"⫆̸",nsupe:"⊉",nsupset:"⊃⃒",nsupseteq:"⊉",nsupseteqq:"⫆̸",ntgl:"≹",Ntilde:"Ñ",ntilde:"ñ",ntlg:"≸",ntriangleleft:"⋪",ntrianglelefteq:"⋬",ntriangleright:"⋫",ntrianglerighteq:"⋭",Nu:"Ν",nu:"ν",num:"#",numero:"№",numsp:" ",nvap:"≍⃒",nvdash:"⊬",nvDash:"⊭",nVdash:"⊮",nVDash:"⊯",nvge:"≥⃒",nvgt:">⃒",nvHarr:"⤄",nvinfin:"⧞",nvlArr:"⤂",nvle:"≤⃒",nvlt:"<⃒",nvltrie:"⊴⃒",nvrArr:"⤃",nvrtrie:"⊵⃒",nvsim:"∼⃒",nwarhk:"⤣",nwarr:"↖",nwArr:"⇖",nwarrow:"↖",nwnear:"⤧",Oacute:"Ó",oacute:"ó",oast:"⊛",Ocirc:"Ô",ocirc:"ô",ocir:"⊚",Ocy:"О",ocy:"о",odash:"⊝",Odblac:"Ő",odblac:"ő",odiv:"⨸",odot:"⊙",odsold:"⦼",OElig:"Œ",oelig:"œ",ofcir:"⦿",Ofr:"𝔒",ofr:"𝔬",ogon:"˛",Ograve:"Ò",ograve:"ò",ogt:"⧁",ohbar:"⦵",ohm:"Ω",oint:"∮",olarr:"↺",olcir:"⦾",olcross:"⦻",oline:"‾",olt:"⧀",Omacr:"Ō",omacr:"ō",Omega:"Ω",omega:"ω",Omicron:"Ο",omicron:"ο",omid:"⦶",ominus:"⊖",Oopf:"𝕆",oopf:"𝕠",opar:"⦷",OpenCurlyDoubleQuote:"“",OpenCurlyQuote:"‘",operp:"⦹",oplus:"⊕",orarr:"↻",Or:"⩔",or:"∨",ord:"⩝",order:"ℴ",orderof:"ℴ",ordf:"ª",ordm:"º",origof:"⊶",oror:"⩖",orslope:"⩗",orv:"⩛",oS:"Ⓢ",Oscr:"𝒪",oscr:"ℴ",Oslash:"Ø",oslash:"ø",osol:"⊘",Otilde:"Õ",otilde:"õ",otimesas:"⨶",Otimes:"⨷",otimes:"⊗",Ouml:"Ö",ouml:"ö",ovbar:"⌽",OverBar:"‾",OverBrace:"⏞",OverBracket:"⎴",OverParenthesis:"⏜",para:"¶",parallel:"∥",par:"∥",parsim:"⫳",parsl:"⫽",part:"∂",PartialD:"∂",Pcy:"П",pcy:"п",percnt:"%",period:".",permil:"‰",perp:"⊥",pertenk:"‱",Pfr:"𝔓",pfr:"𝔭",Phi:"Φ",phi:"φ",phiv:"ϕ",phmmat:"ℳ",phone:"☎",Pi:"Π",pi:"π",pitchfork:"⋔",piv:"ϖ",planck:"ℏ",planckh:"ℎ",plankv:"ℏ",plusacir:"⨣",plusb:"⊞",pluscir:"⨢",plus:"+",plusdo:"∔",plusdu:"⨥",pluse:"⩲",PlusMinus:"±",plusmn:"±",plussim:"⨦",plustwo:"⨧",pm:"±",Poincareplane:"ℌ",pointint:"⨕",popf:"𝕡",Popf:"ℙ",pound:"£",prap:"⪷",Pr:"⪻",pr:"≺",prcue:"≼",precapprox:"⪷",prec:"≺",preccurlyeq:"≼",Precedes:"≺",PrecedesEqual:"⪯",PrecedesSlantEqual:"≼",PrecedesTilde:"≾",preceq:"⪯",precnapprox:"⪹",precneqq:"⪵",precnsim:"⋨",pre:"⪯",prE:"⪳",precsim:"≾",prime:"′",Prime:"″",primes:"ℙ",prnap:"⪹",prnE:"⪵",prnsim:"⋨",prod:"∏",Product:"∏",profalar:"⌮",profline:"⌒",profsurf:"⌓",prop:"∝",Proportional:"∝",Proportion:"∷",propto:"∝",prsim:"≾",prurel:"⊰",Pscr:"𝒫",pscr:"𝓅",Psi:"Ψ",psi:"ψ",puncsp:" ",Qfr:"𝔔",qfr:"𝔮",qint:"⨌",qopf:"𝕢",Qopf:"ℚ",qprime:"⁗",Qscr:"𝒬",qscr:"𝓆",quaternions:"ℍ",quatint:"⨖",quest:"?",questeq:"≟",quot:'"',QUOT:'"',rAarr:"⇛",race:"∽̱",Racute:"Ŕ",racute:"ŕ",radic:"√",raemptyv:"⦳",rang:"⟩",Rang:"⟫",rangd:"⦒",range:"⦥",rangle:"⟩",raquo:"»",rarrap:"⥵",rarrb:"⇥",rarrbfs:"⤠",rarrc:"⤳",rarr:"→",Rarr:"↠",rArr:"⇒",rarrfs:"⤞",rarrhk:"↪",rarrlp:"↬",rarrpl:"⥅",rarrsim:"⥴",Rarrtl:"⤖",rarrtl:"↣",rarrw:"↝",ratail:"⤚",rAtail:"⤜",ratio:"∶",rationals:"ℚ",rbarr:"⤍",rBarr:"⤏",RBarr:"⤐",rbbrk:"❳",rbrace:"}",rbrack:"]",rbrke:"⦌",rbrksld:"⦎",rbrkslu:"⦐",Rcaron:"Ř",rcaron:"ř",Rcedil:"Ŗ",rcedil:"ŗ",rceil:"⌉",rcub:"}",Rcy:"Р",rcy:"р",rdca:"⤷",rdldhar:"⥩",rdquo:"”",rdquor:"”",rdsh:"↳",real:"ℜ",realine:"ℛ",realpart:"ℜ",reals:"ℝ",Re:"ℜ",rect:"▭",reg:"®",REG:"®",ReverseElement:"∋",ReverseEquilibrium:"⇋",ReverseUpEquilibrium:"⥯",rfisht:"⥽",rfloor:"⌋",rfr:"𝔯",Rfr:"ℜ",rHar:"⥤",rhard:"⇁",rharu:"⇀",rharul:"⥬",Rho:"Ρ",rho:"ρ",rhov:"ϱ",RightAngleBracket:"⟩",RightArrowBar:"⇥",rightarrow:"→",RightArrow:"→",Rightarrow:"⇒",RightArrowLeftArrow:"⇄",rightarrowtail:"↣",RightCeiling:"⌉",RightDoubleBracket:"⟧",RightDownTeeVector:"⥝",RightDownVectorBar:"⥕",RightDownVector:"⇂",RightFloor:"⌋",rightharpoondown:"⇁",rightharpoonup:"⇀",rightleftarrows:"⇄",rightleftharpoons:"⇌",rightrightarrows:"⇉",rightsquigarrow:"↝",RightTeeArrow:"↦",RightTee:"⊢",RightTeeVector:"⥛",rightthreetimes:"⋌",RightTriangleBar:"⧐",RightTriangle:"⊳",RightTriangleEqual:"⊵",RightUpDownVector:"⥏",RightUpTeeVector:"⥜",RightUpVectorBar:"⥔",RightUpVector:"↾",RightVectorBar:"⥓",RightVector:"⇀",ring:"˚",risingdotseq:"≓",rlarr:"⇄",rlhar:"⇌",rlm:"‏",rmoustache:"⎱",rmoust:"⎱",rnmid:"⫮",roang:"⟭",roarr:"⇾",robrk:"⟧",ropar:"⦆",ropf:"𝕣",Ropf:"ℝ",roplus:"⨮",rotimes:"⨵",RoundImplies:"⥰",rpar:")",rpargt:"⦔",rppolint:"⨒",rrarr:"⇉",Rrightarrow:"⇛",rsaquo:"›",rscr:"𝓇",Rscr:"ℛ",rsh:"↱",Rsh:"↱",rsqb:"]",rsquo:"’",rsquor:"’",rthree:"⋌",rtimes:"⋊",rtri:"▹",rtrie:"⊵",rtrif:"▸",rtriltri:"⧎",RuleDelayed:"⧴",ruluhar:"⥨",rx:"℞",Sacute:"Ś",sacute:"ś",sbquo:"‚",scap:"⪸",Scaron:"Š",scaron:"š",Sc:"⪼",sc:"≻",sccue:"≽",sce:"⪰",scE:"⪴",Scedil:"Ş",scedil:"ş",Scirc:"Ŝ",scirc:"ŝ",scnap:"⪺",scnE:"⪶",scnsim:"⋩",scpolint:"⨓",scsim:"≿",Scy:"С",scy:"с",sdotb:"⊡",sdot:"⋅",sdote:"⩦",searhk:"⤥",searr:"↘",seArr:"⇘",searrow:"↘",sect:"§",semi:";",seswar:"⤩",setminus:"∖",setmn:"∖",sext:"✶",Sfr:"𝔖",sfr:"𝔰",sfrown:"⌢",sharp:"♯",SHCHcy:"Щ",shchcy:"щ",SHcy:"Ш",shcy:"ш",ShortDownArrow:"↓",ShortLeftArrow:"←",shortmid:"∣",shortparallel:"∥",ShortRightArrow:"→",ShortUpArrow:"↑",shy:"­",Sigma:"Σ",sigma:"σ",sigmaf:"ς",sigmav:"ς",sim:"∼",simdot:"⩪",sime:"≃",simeq:"≃",simg:"⪞",simgE:"⪠",siml:"⪝",simlE:"⪟",simne:"≆",simplus:"⨤",simrarr:"⥲",slarr:"←",SmallCircle:"∘",smallsetminus:"∖",smashp:"⨳",smeparsl:"⧤",smid:"∣",smile:"⌣",smt:"⪪",smte:"⪬",smtes:"⪬︀",SOFTcy:"Ь",softcy:"ь",solbar:"⌿",solb:"⧄",sol:"/",Sopf:"𝕊",sopf:"𝕤",spades:"♠",spadesuit:"♠",spar:"∥",sqcap:"⊓",sqcaps:"⊓︀",sqcup:"⊔",sqcups:"⊔︀",Sqrt:"√",sqsub:"⊏",sqsube:"⊑",sqsubset:"⊏",sqsubseteq:"⊑",sqsup:"⊐",sqsupe:"⊒",sqsupset:"⊐",sqsupseteq:"⊒",square:"□",Square:"□",SquareIntersection:"⊓",SquareSubset:"⊏",SquareSubsetEqual:"⊑",SquareSuperset:"⊐",SquareSupersetEqual:"⊒",SquareUnion:"⊔",squarf:"▪",squ:"□",squf:"▪",srarr:"→",Sscr:"𝒮",sscr:"𝓈",ssetmn:"∖",ssmile:"⌣",sstarf:"⋆",Star:"⋆",star:"☆",starf:"★",straightepsilon:"ϵ",straightphi:"ϕ",strns:"¯",sub:"⊂",Sub:"⋐",subdot:"⪽",subE:"⫅",sube:"⊆",subedot:"⫃",submult:"⫁",subnE:"⫋",subne:"⊊",subplus:"⪿",subrarr:"⥹",subset:"⊂",Subset:"⋐",subseteq:"⊆",subseteqq:"⫅",SubsetEqual:"⊆",subsetneq:"⊊",subsetneqq:"⫋",subsim:"⫇",subsub:"⫕",subsup:"⫓",succapprox:"⪸",succ:"≻",succcurlyeq:"≽",Succeeds:"≻",SucceedsEqual:"⪰",SucceedsSlantEqual:"≽",SucceedsTilde:"≿",succeq:"⪰",succnapprox:"⪺",succneqq:"⪶",succnsim:"⋩",succsim:"≿",SuchThat:"∋",sum:"∑",Sum:"∑",sung:"♪",sup1:"¹",sup2:"²",sup3:"³",sup:"⊃",Sup:"⋑",supdot:"⪾",supdsub:"⫘",supE:"⫆",supe:"⊇",supedot:"⫄",Superset:"⊃",SupersetEqual:"⊇",suphsol:"⟉",suphsub:"⫗",suplarr:"⥻",supmult:"⫂",supnE:"⫌",supne:"⊋",supplus:"⫀",supset:"⊃",Supset:"⋑",supseteq:"⊇",supseteqq:"⫆",supsetneq:"⊋",supsetneqq:"⫌",supsim:"⫈",supsub:"⫔",supsup:"⫖",swarhk:"⤦",swarr:"↙",swArr:"⇙",swarrow:"↙",swnwar:"⤪",szlig:"ß",Tab:"\t",target:"⌖",Tau:"Τ",tau:"τ",tbrk:"⎴",Tcaron:"Ť",tcaron:"ť",Tcedil:"Ţ",tcedil:"ţ",Tcy:"Т",tcy:"т",tdot:"⃛",telrec:"⌕",Tfr:"𝔗",tfr:"𝔱",there4:"∴",therefore:"∴",Therefore:"∴",Theta:"Θ",theta:"θ",thetasym:"ϑ",thetav:"ϑ",thickapprox:"≈",thicksim:"∼",ThickSpace:"  ",ThinSpace:" ",thinsp:" 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wg=g((function(e,t,n,r){var 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g&&(f=e.push("tbody_close","tbody",-1),g[1]=u),f=e.push("table_close","table",-1),m[1]=u,e.parentType=v,e.line=u,!0}),"table"),Cg=g((function(e,t,n){var r,i,o;if(e.sCount[t]-e.blkIndent<4)return!1;for(i=r=t+1;r<n;)if(e.isEmpty(r))r++;else{if(!(e.sCount[r]-e.blkIndent>=4))break;i=++r}return e.line=i,(o=e.push("code_block","code",0)).content=e.getLines(t,i,4+e.blkIndent,!1)+"\n",o.map=[t,e.line],!0}),"code"),Sg=g((function(e,t,n,r){var i,o,a,s,l,u,c,d=!1,f=e.bMarks[t]+e.tShift[t],p=e.eMarks[t];if(e.sCount[t]-e.blkIndent>=4)return!1;if(f+3>p)return!1;if(126!==(i=e.src.charCodeAt(f))&&96!==i)return!1;if(l=f,(o=(f=e.skipChars(f,i))-l)<3)return!1;if(c=e.src.slice(l,f),a=e.src.slice(f,p),96===i&&a.indexOf(String.fromCharCode(i))>=0)return!1;if(r)return!0;for(s=t;!(++s>=n||(f=l=e.bMarks[s]+e.tShift[s])<(p=e.eMarks[s])&&e.sCount[s]<e.blkIndent);)if(e.src.charCodeAt(f)===i&&!(e.sCount[s]-e.blkIndent>=4||(f=e.skipChars(f,i))-l<o||(f=e.skipSpaces(f))<p)){d=!0;break}return o=e.sCount[t],e.line=s+(d?1:0),(u=e.push("fence","code",0)).info=a,u.content=e.getLines(t+1,s,o,!0),u.markup=c,u.map=[t,e.line],!0}),"fence"),xg=Wh.isSpace,kg=g((function(e,t,n,r){var i,o,a,s,l,u,c,d,f,p,h,m,g,v,y,b,E,T,w,C,S=e.lineMax,x=e.bMarks[t]+e.tShift[t],k=e.eMarks[t];if(e.sCount[t]-e.blkIndent>=4)return!1;if(62!==e.src.charCodeAt(x++))return!1;if(r)return!0;for(s=f=e.sCount[t]+1,32===e.src.charCodeAt(x)?(x++,s++,f++,i=!1,b=!0):9===e.src.charCodeAt(x)?(b=!0,(e.bsCount[t]+f)%4==3?(x++,s++,f++,i=!1):i=!0):b=!1,p=[e.bMarks[t]],e.bMarks[t]=x;x<k&&(o=e.src.charCodeAt(x),xg(o));)9===o?f+=4-(f+e.bsCount[t]+(i?1:0))%4:f++,x++;for(h=[e.bsCount[t]],e.bsCount[t]=e.sCount[t]+1+(b?1:0),u=x>=k,v=[e.sCount[t]],e.sCount[t]=f-s,y=[e.tShift[t]],e.tShift[t]=x-e.bMarks[t],T=e.md.block.ruler.getRules("blockquote"),g=e.parentType,e.parentType="blockquote",d=t+1;d<n&&(C=e.sCount[d]<e.blkIndent,!((x=e.bMarks[d]+e.tShift[d])>=(k=e.eMarks[d])));d++)if(62!==e.src.charCodeAt(x++)||C){if(u)break;for(E=!1,a=0,l=T.length;a<l;a++)if(T[a](e,d,n,!0)){E=!0;break}if(E){e.lineMax=d,0!==e.blkIndent&&(p.push(e.bMarks[d]),h.push(e.bsCount[d]),y.push(e.tShift[d]),v.push(e.sCount[d]),e.sCount[d]-=e.blkIndent);break}p.push(e.bMarks[d]),h.push(e.bsCount[d]),y.push(e.tShift[d]),v.push(e.sCount[d]),e.sCount[d]=-1}else{for(s=f=e.sCount[d]+1,32===e.src.charCodeAt(x)?(x++,s++,f++,i=!1,b=!0):9===e.src.charCodeAt(x)?(b=!0,(e.bsCount[d]+f)%4==3?(x++,s++,f++,i=!1):i=!0):b=!1,p.push(e.bMarks[d]),e.bMarks[d]=x;x<k&&(o=e.src.charCodeAt(x),xg(o));)9===o?f+=4-(f+e.bsCount[d]+(i?1:0))%4:f++,x++;u=x>=k,h.push(e.bsCount[d]),e.bsCount[d]=e.sCount[d]+1+(b?1:0),v.push(e.sCount[d]),e.sCount[d]=f-s,y.push(e.tShift[d]),e.tShift[d]=x-e.bMarks[d]}for(m=e.blkIndent,e.blkIndent=0,(w=e.push("blockquote_open","blockquote",1)).markup=">",w.map=c=[t,0],e.md.block.tokenize(e,t,d),(w=e.push("blockquote_close","blockquote",-1)).markup=">",e.lineMax=S,e.parentType=g,c[1]=e.line,a=0;a<y.length;a++)e.bMarks[a+t]=p[a],e.tShift[a+t]=y[a],e.sCount[a+t]=v[a],e.bsCount[a+t]=h[a];return e.blkIndent=m,!0}),"blockquote"),Ng=Wh.isSpace,_g=g((function(e,t,n,r){var i,o,a,s,l=e.bMarks[t]+e.tShift[t],u=e.eMarks[t];if(e.sCount[t]-e.blkIndent>=4)return!1;if(42!==(i=e.src.charCodeAt(l++))&&45!==i&&95!==i)return!1;for(o=1;l<u;){if((a=e.src.charCodeAt(l++))!==i&&!Ng(a))return!1;a===i&&o++}return!(o<3||(r||(e.line=t+1,(s=e.push("hr","hr",0)).map=[t,e.line],s.markup=Array(o+1).join(String.fromCharCode(i))),0))}),"hr"),Og=Wh.isSpace;function Ig(e,t){var n,r,i,o;return r=e.bMarks[t]+e.tShift[t],i=e.eMarks[t],42!==(n=e.src.charCodeAt(r++))&&45!==n&&43!==n||r<i&&(o=e.src.charCodeAt(r),!Og(o))?-1:r}function Dg(e,t){var n,r=e.bMarks[t]+e.tShift[t],i=r,o=e.eMarks[t];if(i+1>=o)return-1;if((n=e.src.charCodeAt(i++))<48||n>57)return-1;for(;;){if(i>=o)return-1;if(!((n=e.src.charCodeAt(i++))>=48&&n<=57)){if(41===n||46===n)break;return-1}if(i-r>=10)return-1}return i<o&&(n=e.src.charCodeAt(i),!Og(n))?-1:i}function Lg(e,t){var n,r,i=e.level+2;for(n=t+2,r=e.tokens.length-2;n<r;n++)e.tokens[n].level===i&&"paragraph_open"===e.tokens[n].type&&(e.tokens[n+2].hidden=!0,e.tokens[n].hidden=!0,n+=2)}g(Ig,"skipBulletListMarker"),g(Dg,"skipOrderedListMarker"),g(Lg,"markTightParagraphs");var Ag=g((function(e,t,n,r){var 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i,o,a,s,l,u,c,d,f,p,h,m,g,v,y,b,E=0,T=e.bMarks[t]+e.tShift[t],w=e.eMarks[t],C=t+1;if(e.sCount[t]-e.blkIndent>=4)return!1;if(91!==e.src.charCodeAt(T))return!1;for(;++T<w;)if(93===e.src.charCodeAt(T)&&92!==e.src.charCodeAt(T-1)){if(T+1===w)return!1;if(58!==e.src.charCodeAt(T+1))return!1;break}for(s=e.lineMax,y=e.md.block.ruler.getRules("reference"),p=e.parentType,e.parentType="reference";C<s&&!e.isEmpty(C);C++)if(!(e.sCount[C]-e.blkIndent>3||e.sCount[C]<0)){for(v=!1,u=0,c=y.length;u<c;u++)if(y[u](e,C,s,!0)){v=!0;break}if(v)break}for(w=(g=e.getLines(t,C,e.blkIndent,!1).trim()).length,T=1;T<w;T++){if(91===(i=g.charCodeAt(T)))return!1;if(93===i){f=T;break}(10===i||92===i&&++T<w&&10===g.charCodeAt(T))&&E++}if(f<0||58!==g.charCodeAt(f+1))return!1;for(T=f+2;T<w;T++)if(10===(i=g.charCodeAt(T)))E++;else 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n,r,i,o,a,s,l,u,c=e.pos;if(96!==e.src.charCodeAt(c))return!1;for(n=c,c++,r=e.posMax;c<r&&96===e.src.charCodeAt(c);)c++;if(l=(i=e.src.slice(n,c)).length,e.backticksScanned&&(e.backticks[l]||0)<=n)return t||(e.pending+=i),e.pos+=l,!0;for(a=s=c;-1!==(a=e.src.indexOf("`",s));){for(s=a+1;s<r&&96===e.src.charCodeAt(s);)s++;if((u=s-a)===l)return t||((o=e.push("code_inline","code",0)).markup=i,o.content=e.src.slice(c,a).replace(/\n/g," ").replace(/^ (.+) $/,"$1")),e.pos=s,!0;e.backticks[u]=a}return e.backticksScanned=!0,t||(e.pending+=i),e.pos+=l,!0}),"backtick"),pv={};function hv(e,t){var n,r,i,o,a,s=[],l=t.length;for(n=0;n<l;n++)126===(i=t[n]).marker&&-1!==i.end&&(o=t[i.end],(a=e.tokens[i.token]).type="s_open",a.tag="s",a.nesting=1,a.markup="~~",a.content="",(a=e.tokens[o.token]).type="s_close",a.tag="s",a.nesting=-1,a.markup="~~",a.content="","text"===e.tokens[o.token-1].type&&"~"===e.tokens[o.token-1].content&&s.push(o.token-1));for(;s.length;){for(r=(n=s.pop())+1;r<e.tokens.length&&"s_close"===e.tokens[r].type;)r++;n!==--r&&(a=e.tokens[r],e.tokens[r]=e.tokens[n],e.tokens[n]=a)}}pv.tokenize=g((function(e,t){var n,r,i,o,a=e.pos,s=e.src.charCodeAt(a);if(t)return!1;if(126!==s)return!1;if(i=(r=e.scanDelims(e.pos,!0)).length,o=String.fromCharCode(s),i<2)return!1;for(i%2&&(e.push("text","",0).content=o,i--),n=0;n<i;n+=2)e.push("text","",0).content=o+o,e.delimiters.push({marker:s,length:0,jump:n/2,token:e.tokens.length-1,end:-1,open:r.can_open,close:r.can_close});return e.pos+=r.length,!0}),"strikethrough"),g(hv,"postProcess$1"),pv.postProcess=g((function(e){var 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n,r,i=e.pos,o=e.src.charCodeAt(i);if(t)return!1;if(95!==o&&42!==o)return!1;for(r=e.scanDelims(e.pos,42===o),n=0;n<r.length;n++)e.push("text","",0).content=String.fromCharCode(o),e.delimiters.push({marker:o,length:r.length,jump:n,token:e.tokens.length-1,end:-1,open:r.can_open,close:r.can_close});return e.pos+=r.length,!0}),"emphasis"),g(gv,"postProcess"),mv.postProcess=g((function(e){var t,n=e.tokens_meta,r=e.tokens_meta.length;for(gv(e,e.delimiters),t=0;t<r;t++)n[t]&&n[t].delimiters&&gv(e,n[t].delimiters)}),"emphasis");var vv=Wh.normalizeReference,yv=Wh.isSpace,bv=g((function(e,t){var n,r,i,o,a,s,l,u,c="",d="",f=e.pos,p=e.posMax,h=e.pos,m=!0;if(91!==e.src.charCodeAt(e.pos))return!1;if(a=e.pos+1,(o=e.md.helpers.parseLinkLabel(e,e.pos,!0))<0)return!1;if((s=o+1)<p&&40===e.src.charCodeAt(s)){for(m=!1,s++;s<p&&(r=e.src.charCodeAt(s),yv(r)||10===r);s++);if(s>=p)return!1;if(h=s,(l=e.md.helpers.parseLinkDestination(e.src,s,e.posMax)).ok){for(c=e.md.normalizeLink(l.str),e.md.validateLink(c)?s=l.pos:c="",h=s;s<p&&(r=e.src.charCodeAt(s),yv(r)||10===r);s++);if(l=e.md.helpers.parseLinkTitle(e.src,s,e.posMax),s<p&&h!==s&&l.ok)for(d=l.str,s=l.pos;s<p&&(r=e.src.charCodeAt(s),yv(r)||10===r);s++);}(s>=p||41!==e.src.charCodeAt(s))&&(m=!0),s++}if(m){if(void 0===e.env.references)return!1;if(s<p&&91===e.src.charCodeAt(s)?(h=s+1,(s=e.md.helpers.parseLinkLabel(e,s))>=0?i=e.src.slice(h,s++):s=o+1):s=o+1,i||(i=e.src.slice(a,o)),!(u=e.env.references[vv(i)]))return e.pos=f,!1;c=u.href,d=u.title}return t||(e.pos=a,e.posMax=o,e.push("link_open","a",1).attrs=n=[["href",c]],d&&n.push(["title",d]),e.md.inline.tokenize(e),e.push("link_close","a",-1)),e.pos=s,e.posMax=p,!0}),"link"),Ev=Wh.normalizeReference,Tv=Wh.isSpace,wv=g((function(e,t){var n,r,i,o,a,s,l,u,c,d,f,p,h,m="",g=e.pos,v=e.posMax;if(33!==e.src.charCodeAt(e.pos))return!1;if(91!==e.src.charCodeAt(e.pos+1))return!1;if(s=e.pos+2,(a=e.md.helpers.parseLinkLabel(e,e.pos+1,!1))<0)return!1;if((l=a+1)<v&&40===e.src.charCodeAt(l)){for(l++;l<v&&(r=e.src.charCodeAt(l),Tv(r)||10===r);l++);if(l>=v)return!1;for(h=l,(c=e.md.helpers.parseLinkDestination(e.src,l,e.posMax)).ok&&(m=e.md.normalizeLink(c.str),e.md.validateLink(m)?l=c.pos:m=""),h=l;l<v&&(r=e.src.charCodeAt(l),Tv(r)||10===r);l++);if(c=e.md.helpers.parseLinkTitle(e.src,l,e.posMax),l<v&&h!==l&&c.ok)for(d=c.str,l=c.pos;l<v&&(r=e.src.charCodeAt(l),Tv(r)||10===r);l++);else d="";if(l>=v||41!==e.src.charCodeAt(l))return e.pos=g,!1;l++}else{if(void 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c=t.getSelection()||u.lastQuery;if(c instanceof RegExp&&"x^"==c.source&&(c=null),i&&t.openDialog){var d=null,p=o((function(n,r){e.e_stop(r),n&&(n!=u.queryText&&(f(t,u,n),u.posFrom=u.posTo=t.getCursor()),d&&(d.style.opacity=1),h(t,r.shiftKey,(function(e,n){var r;n.line<3&&document.querySelector&&(r=t.display.wrapper.querySelector(".CodeMirror-dialog"))&&r.getBoundingClientRect().bottom-4>t.cursorCoords(n,"window").top&&((d=r).style.opacity=.4)})))}),"searchNext");s(t,v(t),c,p,(function(n,i){var o=e.keyName(n),a=t.getOption("extraKeys"),s=a&&a[o]||e.keyMap[t.getOption("keyMap")][o];"findNext"==s||"findPrev"==s||"findPersistentNext"==s||"findPersistentPrev"==s?(e.e_stop(n),f(t,r(t),i),t.execCommand(s)):"find"!=s&&"findPersistent"!=s||(e.e_stop(n),p(i,n))})),a&&c&&(f(t,u,c),h(t,n))}else l(t,v(t),"Search for:",c,(function(e){e&&!u.query&&t.operation((function(){f(t,u,e),u.posFrom=u.posTo=t.getCursor(),h(t,n)}))}))}function h(t,n,i){t.operation((function(){var o=r(t),s=a(t,o.query,n?o.posFrom:o.posTo);(s.find(n)||(s=a(t,o.query,n?e.Pos(t.lastLine()):e.Pos(t.firstLine(),0))).find(n))&&(t.setSelection(s.from(),s.to()),t.scrollIntoView({from:s.from(),to:s.to()},20),o.posFrom=s.from(),o.posTo=s.to(),i&&i(s.from(),s.to()))}))}function m(e){e.operation((function(){var t=r(e);t.lastQuery=t.query,t.query&&(t.query=t.queryText=null,e.removeOverlay(t.overlay),t.annotate&&(t.annotate.clear(),t.annotate=null))}))}function g(e,t){var n=e?document.createElement(e):document.createDocumentFragment();for(var r in t)n[r]=t[r];for(var i=2;i<arguments.length;i++){var o=arguments[i];n.appendChild("string"==typeof o?document.createTextNode(o):o)}return n}function v(e){return g("",null,g("span",{className:"CodeMirror-search-label"},e.phrase("Search:"))," ",g("input",{type:"text",style:"width: 10em",className:"CodeMirror-search-field"})," ",g("span",{style:"color: #888",className:"CodeMirror-search-hint"},e.phrase("(Use /re/ syntax for regexp search)")))}function 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o=this,a=r.cm,s=a.getInputField().ownerDocument,d=s.defaultView||s.parentWindow,f=this.hints=s.createElement("ul");f.setAttribute("role","listbox"),f.setAttribute("aria-expanded","true"),f.id=this.id;var p=r.cm.options.theme;f.className="CodeMirror-hints "+p,this.selectedHint=i.selectedHint||0;for(var h=i.list,m=0;m<h.length;++m){var g=f.appendChild(s.createElement("li")),v=h[m],y=t+(m!=this.selectedHint?"":" "+n);null!=v.className&&(y=v.className+" "+y),g.className=y,m==this.selectedHint&&g.setAttribute("aria-selected","true"),g.id=this.id+"-"+m,g.setAttribute("role","option"),v.render?v.render(g,i,v):g.appendChild(s.createTextNode(v.displayText||l(v))),g.hintId=m}var b=r.options.container||s.body,E=a.cursorCoords(r.options.alignWithWord?i.from:null),T=E.left,w=E.bottom,C=!0,S=0,x=0;if(b!==s.body){var k=-1!==["absolute","relative","fixed"].indexOf(d.getComputedStyle(b).position)?b:b.offsetParent,N=k.getBoundingClientRect(),_=s.body.getBoundingClientRect();S=N.left-_.left-k.scrollLeft,x=N.top-_.top-k.scrollTop}f.style.left=T-S+"px",f.style.top=w-x+"px";var O=d.innerWidth||Math.max(s.body.offsetWidth,s.documentElement.offsetWidth),I=d.innerHeight||Math.max(s.body.offsetHeight,s.documentElement.offsetHeight);b.appendChild(f),a.getInputField().setAttribute("aria-autocomplete","list"),a.getInputField().setAttribute("aria-owns",this.id),a.getInputField().setAttribute("aria-activedescendant",this.id+"-"+this.selectedHint);var D,L=r.options.moveOnOverlap?f.getBoundingClientRect():new DOMRect,A=!!r.options.paddingForScrollbar&&f.scrollHeight>f.clientHeight+1;if(setTimeout((function(){D=a.getScrollInfo()})),L.bottom-I>0){var M=L.bottom-L.top;if(E.top-(E.bottom-L.top)-M>0)f.style.top=(w=E.top-M-x)+"px",C=!1;else if(M>I){f.style.height=I-5+"px",f.style.top=(w=E.bottom-L.top-x)+"px";var R=a.getCursor();i.from.ch!=R.ch&&(E=a.cursorCoords(R),f.style.left=(T=E.left-S)+"px",L=f.getBoundingClientRect())}}var F,P=L.right-O;if(A&&(P+=a.display.nativeBarWidth),P>0&&(L.right-L.left>O&&(f.style.width=O-5+"px",P-=L.right-L.left-O),f.style.left=(T=E.left-P-S)+"px"),A)for(var j=f.firstChild;j;j=j.nextSibling)j.style.paddingRight=a.display.nativeBarWidth+"px";a.addKeyMap(this.keyMap=u(r,{moveFocus:function(e,t){o.changeActive(o.selectedHint+e,t)},setFocus:function(e){o.changeActive(e)},menuSize:function(){return o.screenAmount()},length:h.length,close:function(){r.close()},pick:function(){o.pick()},data:i})),r.options.closeOnUnfocus&&(a.on("blur",this.onBlur=function(){F=setTimeout((function(){r.close()}),100)}),a.on("focus",this.onFocus=function(){clearTimeout(F)})),a.on("scroll",this.onScroll=function(){var e=a.getScrollInfo(),t=a.getWrapperElement().getBoundingClientRect();D||(D=a.getScrollInfo());var n=w+D.top-e.top,i=n-(d.pageYOffset||(s.documentElement||s.body).scrollTop);if(C||(i+=f.offsetHeight),i<=t.top||i>=t.bottom)return r.close();f.style.top=n+"px",f.style.left=T+D.left-e.left+"px"}),e.on(f,"dblclick",(function(e){var t=c(f,e.target||e.srcElement);t&&null!=t.hintId&&(o.changeActive(t.hintId),o.pick())})),e.on(f,"click",(function(e){var t=c(f,e.target||e.srcElement);t&&null!=t.hintId&&(o.changeActive(t.hintId),r.options.completeOnSingleClick&&o.pick())})),e.on(f,"mousedown",(function(){setTimeout((function(){a.focus()}),20)}));var V=this.getSelectedHintRange();return 0===V.from&&0===V.to||this.scrollToActive(),e.signal(i,"select",h[this.selectedHint],f.childNodes[this.selectedHint]),!0}function f(e,t){if(!e.somethingSelected())return t;for(var n=[],r=0;r<t.length;r++)t[r].supportsSelection&&n.push(t[r]);return n}function p(e,t,n,r){if(e.async)e(t,r,n);else{var i=e(t,n);i&&i.then?i.then(r):r(i)}}function h(t,n){var i,o=t.getHelpers(n,"hint");if(o.length){var a=r((function(e,t,n){var i=f(e,o);function a(r){if(r==i.length)return t(null);p(i[r],e,n,(function(e){e&&e.list.length>0?t(e):a(r+1)}))}r(a,"run"),a(0)}),"resolved");return a.async=!0,a.supportsSelection=!0,a}return(i=t.getHelper(t.getCursor(),"hintWords"))?function(t){return e.hint.fromList(t,{words:i})}:e.hint.anyword?function(t,n){return e.hint.anyword(t,n)}:function(){}}i.prototype={close:function(){this.active()&&(this.cm.state.completionActive=null,this.tick=null,this.options.updateOnCursorActivity&&this.cm.off("cursorActivity",this.activityFunc),this.widget&&this.data&&e.signal(this.data,"close"),this.widget&&this.widget.close(),e.signal(this.cm,"endCompletion",this.cm))},active:function(){return this.cm.state.completionActive==this},pick:function(t,n){var r=t.list[n],i=this;this.cm.operation((function(){r.hint?r.hint(i.cm,t,r):i.cm.replaceRange(l(r),r.from||t.from,r.to||t.to,"complete"),e.signal(t,"pick",r),i.cm.scrollIntoView()})),this.options.closeOnPick&&this.close()},cursorActivity:function(){this.debounce&&(a(this.debounce),this.debounce=0);var e=this.startPos;this.data&&(e=this.data.from);var t=this.cm.getCursor(),n=this.cm.getLine(t.line);if(t.line!=this.startPos.line||n.length-t.ch!=this.startLen-this.startPos.ch||t.ch<e.ch||this.cm.somethingSelected()||!t.ch||this.options.closeCharacters.test(n.charAt(t.ch-1)))this.close();else{var r=this;this.debounce=o((function(){r.update()})),this.widget&&this.widget.disable()}},update:function(e){if(null!=this.tick){var t=this,n=++this.tick;p(this.options.hint,this.cm,this.options,(function(r){t.tick==n&&t.finishUpdate(r,e)}))}},finishUpdate:function(t,n){this.data&&e.signal(this.data,"update");var r=this.widget&&this.widget.picked||n&&this.options.completeSingle;this.widget&&this.widget.close(),this.data=t,t&&t.list.length&&(r&&1==t.list.length?this.pick(t,0):(this.widget=new d(this,t),e.signal(t,"shown")))}},r(s,"parseOptions"),r(l,"getText"),r(u,"buildKeyMap"),r(c,"getHintElement"),r(d,"Widget"),d.prototype={close:function(){if(this.completion.widget==this){this.completion.widget=null,this.hints.parentNode&&this.hints.parentNode.removeChild(this.hints),this.completion.cm.removeKeyMap(this.keyMap);var e=this.completion.cm.getInputField();e.removeAttribute("aria-activedescendant"),e.removeAttribute("aria-owns");var t=this.completion.cm;this.completion.options.closeOnUnfocus&&(t.off("blur",this.onBlur),t.off("focus",this.onFocus)),t.off("scroll",this.onScroll)}},disable:function(){this.completion.cm.removeKeyMap(this.keyMap);var e=this;this.keyMap={Enter:function(){e.picked=!0}},this.completion.cm.addKeyMap(this.keyMap)},pick:function(){this.completion.pick(this.data,this.selectedHint)},changeActive:function(t,r){if(t>=this.data.list.length?t=r?this.data.list.length-1:0:t<0&&(t=r?0:this.data.list.length-1),this.selectedHint!=t){var i=this.hints.childNodes[this.selectedHint];i&&(i.className=i.className.replace(" "+n,""),i.removeAttribute("aria-selected")),(i=this.hints.childNodes[this.selectedHint=t]).className+=" "+n,i.setAttribute("aria-selected","true"),this.completion.cm.getInputField().setAttribute("aria-activedescendant",i.id),this.scrollToActive(),e.signal(this.data,"select",this.data.list[this.selectedHint],i)}},scrollToActive:function(){var e=this.getSelectedHintRange(),t=this.hints.childNodes[e.from],n=this.hints.childNodes[e.to],r=this.hints.firstChild;t.offsetTop<this.hints.scrollTop?this.hints.scrollTop=t.offsetTop-r.offsetTop:n.offsetTop+n.offsetHeight>this.hints.scrollTop+this.hints.clientHeight&&(this.hints.scrollTop=n.offsetTop+n.offsetHeight-this.hints.clientHeight+r.offsetTop)},screenAmount:function(){return Math.floor(this.hints.clientHeight/this.hints.firstChild.offsetHeight)||1},getSelectedHintRange:function(){var e=this.completion.options.scrollMargin||0;return{from:Math.max(0,this.selectedHint-e),to:Math.min(this.data.list.length-1,this.selectedHint+e)}}},r(f,"applicableHelpers"),r(p,"fetchHints"),r(h,"resolveAutoHints"),e.registerHelper("hint","auto",{resolve:h}),e.registerHelper("hint","fromList",(function(t,n){var r,i=t.getCursor(),o=t.getTokenAt(i),a=e.Pos(i.line,o.start),s=i;o.start<i.ch&&/\w/.test(o.string.charAt(i.ch-o.start-1))?r=o.string.substr(0,i.ch-o.start):(r="",a=i);for(var l=[],u=0;u<n.words.length;u++){var c=n.words[u];c.slice(0,r.length)==r&&l.push(c)}if(l.length)return{list:l,from:a,to:s}})),e.commands.autocomplete=e.showHint;var m={hint:e.hint.auto,completeSingle:!0,alignWithWord:!0,closeCharacters:/[\s()\[\]{};:>,]/,closeOnPick:!0,closeOnUnfocus:!0,updateOnCursorActivity:!0,completeOnSingleClick:!0,container:null,customKeys:null,extraKeys:null,paddingForScrollbar:!0,moveOnOverlap:!0};e.defineOption("hintOptions",null)}(t.a.exports);var a=i({__proto__:null,default:o.exports},[o.exports]);e.s=a})?r.apply(t,i):r)||(e.exports=o)},2568:function(e,t,n){var r,i,o;"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self&&self,i=[t,n(535),n(9407),n(9171)],void 0===(o="function"==typeof(r=function(e,t,n,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.s=void 0;var i=Object.defineProperty,o=(e,t)=>i(e,"name",{value:t,configurable:!0});function a(e,t){return t.forEach((function(t){t&&"string"!=typeof t&&!Array.isArray(t)&&Object.keys(t).forEach((function(n){if("default"!==n&&!(n in e)){var r=Object.getOwnPropertyDescriptor(t,n);Object.defineProperty(e,n,r.get?r:{enumerable:!0,get:function(){return t[n]}})}}))})),Object.freeze(Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}))}o(a,"_mergeNamespaces");var s={exports:{}};!function(e){var t=e.commands,n=e.Pos;function r(t,r,i){if(i<0&&0==r.ch)return t.clipPos(n(r.line-1));var o=t.getLine(r.line);if(i>0&&r.ch>=o.length)return t.clipPos(n(r.line+1,0));for(var a,s="start",l=r.ch,u=l,c=i<0?0:o.length,d=0;u!=c;u+=i,d++){var f=o.charAt(i<0?u-1:u),p="_"!=f&&e.isWordChar(f)?"w":"o";if("w"==p&&f.toUpperCase()==f&&(p="W"),"start"==s)"o"!=p?(s="in",a=p):l=u+i;else if("in"==s&&a!=p){if("w"==a&&"W"==p&&i<0&&u--,"W"==a&&"w"==p&&i>0){if(u==l+1){a="w";continue}u--}break}}return n(r.line,u)}function i(e,t){e.extendSelectionsBy((function(n){return e.display.shift||e.doc.extend||n.empty()?r(e.doc,n.head,t):t<0?n.from():n.to()}))}function a(t,r){if(t.isReadOnly())return e.Pass;t.operation((function(){for(var e=t.listSelections().length,i=[],o=-1,a=0;a<e;a++){var s=t.listSelections()[a].head;if(!(s.line<=o)){var l=n(s.line+(r?0:1),0);t.replaceRange("\n",l,null,"+insertLine"),t.indentLine(l.line,null,!0),i.push({head:l,anchor:l}),o=s.line+1}}t.setSelections(i)})),t.execCommand("indentAuto")}function s(t,r){for(var i=r.ch,o=i,a=t.getLine(r.line);i&&e.isWordChar(a.charAt(i-1));)--i;for(;o<a.length&&e.isWordChar(a.charAt(o));)++o;return{from:n(r.line,i),to:n(r.line,o),word:a.slice(i,o)}}function l(e,t){for(var n=e.listSelections(),r=[],i=0;i<n.length;i++){var o=n[i],a=e.findPosV(o.anchor,t,"line",o.anchor.goalColumn),s=e.findPosV(o.head,t,"line",o.head.goalColumn);a.goalColumn=null!=o.anchor.goalColumn?o.anchor.goalColumn:e.cursorCoords(o.anchor,"div").left,s.goalColumn=null!=o.head.goalColumn?o.head.goalColumn:e.cursorCoords(o.head,"div").left;var l={anchor:a,head:s};r.push(o),r.push(l)}e.setSelections(r)}function u(t,n,r){for(var i=0;i<t.length;i++)if(0==e.cmpPos(t[i].from(),n)&&0==e.cmpPos(t[i].to(),r))return!0;return!1}o(r,"findPosSubword"),o(i,"moveSubword"),t.goSubwordLeft=function(e){i(e,-1)},t.goSubwordRight=function(e){i(e,1)},t.scrollLineUp=function(e){var t=e.getScrollInfo();if(!e.somethingSelected()){var n=e.lineAtHeight(t.top+t.clientHeight,"local");e.getCursor().line>=n&&e.execCommand("goLineUp")}e.scrollTo(null,t.top-e.defaultTextHeight())},t.scrollLineDown=function(e){var t=e.getScrollInfo();if(!e.somethingSelected()){var n=e.lineAtHeight(t.top,"local")+1;e.getCursor().line<=n&&e.execCommand("goLineDown")}e.scrollTo(null,t.top+e.defaultTextHeight())},t.splitSelectionByLine=function(e){for(var t=e.listSelections(),r=[],i=0;i<t.length;i++)for(var o=t[i].from(),a=t[i].to(),s=o.line;s<=a.line;++s)a.line>o.line&&s==a.line&&0==a.ch||r.push({anchor:s==o.line?o:n(s,0),head:s==a.line?a:n(s)});e.setSelections(r,0)},t.singleSelectionTop=function(e){var t=e.listSelections()[0];e.setSelection(t.anchor,t.head,{scroll:!1})},t.selectLine=function(e){for(var t=e.listSelections(),r=[],i=0;i<t.length;i++){var o=t[i];r.push({anchor:n(o.from().line,0),head:n(o.to().line+1,0)})}e.setSelections(r)},o(a,"insertLine"),t.insertLineAfter=function(e){return a(e,!1)},t.insertLineBefore=function(e){return a(e,!0)},o(s,"wordAt"),t.selectNextOccurrence=function(t){var r=t.getCursor("from"),i=t.getCursor("to"),o=t.state.sublimeFindFullWord==t.doc.sel;if(0==e.cmpPos(r,i)){var a=s(t,r);if(!a.word)return;t.setSelection(a.from,a.to),o=!0}else{var l=t.getRange(r,i),c=o?new RegExp("\\b"+l+"\\b"):l,d=t.getSearchCursor(c,i),f=d.findNext();if(f||(f=(d=t.getSearchCursor(c,n(t.firstLine(),0))).findNext()),!f||u(t.listSelections(),d.from(),d.to()))return;t.addSelection(d.from(),d.to())}o&&(t.state.sublimeFindFullWord=t.doc.sel)},t.skipAndSelectNextOccurrence=function(n){var r=n.getCursor("anchor"),i=n.getCursor("head");t.selectNextOccurrence(n),0!=e.cmpPos(r,i)&&n.doc.setSelections(n.doc.listSelections().filter((function(e){return e.anchor!=r||e.head!=i})))},o(l,"addCursorToSelection"),t.addCursorToPrevLine=function(e){l(e,-1)},t.addCursorToNextLine=function(e){l(e,1)},o(u,"isSelectedRange");var c="(){}[]";function d(t){for(var r=t.listSelections(),i=[],o=0;o<r.length;o++){var a=r[o],s=a.head,l=t.scanForBracket(s,-1);if(!l)return!1;for(;;){var u=t.scanForBracket(s,1);if(!u)return!1;if(u.ch==c.charAt(c.indexOf(l.ch)+1)){var d=n(l.pos.line,l.pos.ch+1);if(0!=e.cmpPos(d,a.from())||0!=e.cmpPos(u.pos,a.to())){i.push({anchor:d,head:u.pos});break}if(!(l=t.scanForBracket(l.pos,-1)))return!1}s=n(u.pos.line,u.pos.ch+1)}}return t.setSelections(i),!0}function f(e){return e?/\bpunctuation\b/.test(e)?e:void 0:null}function p(t,r,i){if(t.isReadOnly())return e.Pass;for(var o,a=t.listSelections(),s=[],l=0;l<a.length;l++){var u=a[l];if(!u.empty()){for(var c=u.from().line,d=u.to().line;l<a.length-1&&a[l+1].from().line==d;)d=a[++l].to().line;a[l].to().ch||d--,s.push(c,d)}}s.length?o=!0:s.push(t.firstLine(),t.lastLine()),t.operation((function(){for(var e=[],a=0;a<s.length;a+=2){var l=s[a],u=s[a+1],c=n(l,0),d=n(u),f=t.getRange(c,d,!1);r?f.sort((function(e,t){return e<t?-i:e==t?0:i})):f.sort((function(e,t){var n=e.toUpperCase(),r=t.toUpperCase();return n!=r&&(e=n,t=r),e<t?-i:e==t?0:i})),t.replaceRange(f,c,d),o&&e.push({anchor:c,head:n(u+1,0)})}o&&t.setSelections(e,0)}))}function h(t,n){t.operation((function(){for(var r=t.listSelections(),i=[],o=[],a=0;a<r.length;a++)(u=r[a]).empty()?(i.push(a),o.push("")):o.push(n(t.getRange(u.from(),u.to())));var l;for(t.replaceSelections(o,"around","case"),a=i.length-1;a>=0;a--){var u=r[i[a]];if(!(l&&e.cmpPos(u.head,l)>0)){var c=s(t,u.head);l=c.from,t.replaceRange(n(c.word),c.from,c.to)}}}))}function m(t){var n=t.getCursor("from"),r=t.getCursor("to");if(0==e.cmpPos(n,r)){var i=s(t,n);if(!i.word)return;n=i.from,r=i.to}return{from:n,to:r,query:t.getRange(n,r),word:i}}function g(e,t){var r=m(e);if(r){var i=r.query,o=e.getSearchCursor(i,t?r.to:r.from);(t?o.findNext():o.findPrevious())?e.setSelection(o.from(),o.to()):(o=e.getSearchCursor(i,t?n(e.firstLine(),0):e.clipPos(n(e.lastLine()))),(t?o.findNext():o.findPrevious())?e.setSelection(o.from(),o.to()):r.word&&e.setSelection(r.from,r.to))}}o(d,"selectBetweenBrackets"),t.selectScope=function(e){d(e)||e.execCommand("selectAll")},t.selectBetweenBrackets=function(t){if(!d(t))return e.Pass},o(f,"puncType"),t.goToBracket=function(t){t.extendSelectionsBy((function(r){var i=t.scanForBracket(r.head,1,f(t.getTokenTypeAt(r.head)));if(i&&0!=e.cmpPos(i.pos,r.head))return i.pos;var o=t.scanForBracket(r.head,-1,f(t.getTokenTypeAt(n(r.head.line,r.head.ch+1))));return o&&n(o.pos.line,o.pos.ch+1)||r.head}))},t.swapLineUp=function(t){if(t.isReadOnly())return e.Pass;for(var r=t.listSelections(),i=[],o=t.firstLine()-1,a=[],s=0;s<r.length;s++){var l=r[s],u=l.from().line-1,c=l.to().line;a.push({anchor:n(l.anchor.line-1,l.anchor.ch),head:n(l.head.line-1,l.head.ch)}),0!=l.to().ch||l.empty()||--c,u>o?i.push(u,c):i.length&&(i[i.length-1]=c),o=c}t.operation((function(){for(var e=0;e<i.length;e+=2){var r=i[e],o=i[e+1],s=t.getLine(r);t.replaceRange("",n(r,0),n(r+1,0),"+swapLine"),o>t.lastLine()?t.replaceRange("\n"+s,n(t.lastLine()),null,"+swapLine"):t.replaceRange(s+"\n",n(o,0),null,"+swapLine")}t.setSelections(a),t.scrollIntoView()}))},t.swapLineDown=function(t){if(t.isReadOnly())return e.Pass;for(var r=t.listSelections(),i=[],o=t.lastLine()+1,a=r.length-1;a>=0;a--){var s=r[a],l=s.to().line+1,u=s.from().line;0!=s.to().ch||s.empty()||l--,l<o?i.push(l,u):i.length&&(i[i.length-1]=u),o=u}t.operation((function(){for(var e=i.length-2;e>=0;e-=2){var 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t,n;this.name=(0,u.i)(e.name),this.description=e.description,this.locations=e.locations,this.isRepeatable=null!==(t=e.isRepeatable)&&void 0!==t&&t,this.extensions=(0,s.u)(e.extensions),this.astNode=e.astNode,Array.isArray(e.locations)||(0,r.a)(!1,`@${e.name} locations must be an Array.`);const i=null!==(n=e.args)&&void 0!==n?n:{};(0,a.y)(i)&&!Array.isArray(i)||(0,r.a)(!1,`@${e.name} args must be an object with argument names as keys.`),this.args=(0,c.WO)(i)}get[Symbol.toStringTag](){return"GraphQLDirective"}toConfig(){return{name:this.name,description:this.description,locations:this.locations,args:(0,c.DM)(this.args),isRepeatable:this.isRepeatable,extensions:this.extensions,astNode:this.astNode}}toString(){return"@"+this.name}toJSON(){return this.toString()}}const m=new h({name:"include",description:"Directs the executor to include this field or fragment only when the `if` argument is true.",locations:[l.B.FIELD,l.B.FRAGMENT_SPREAD,l.B.INLINE_FRAGMENT],args:{if:{type:new 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t.interfaces)n[e.name]=!0}this._subTypeMap[e.name]=n}return void 0!==n[t.name]}getDirectives(){return this._directives}getDirective(e){return this.getDirectives().find((t=>t.name===e))}toConfig(){return{description:this.description,query:this.getQueryType(),mutation:this.getMutationType(),subscription:this.getSubscriptionType(),types:Object.values(this.getTypeMap()),directives:this.getDirectives(),extensions:this.extensions,astNode:this.astNode,extensionASTNodes:this.extensionASTNodes,assumeValid:void 0!==this.__validationErrors}}}function m(e,t){const n=(0,u.xC)(e);if(!t.has(n))if(t.add(n),(0,u.EN)(n))for(const e of n.getTypes())m(e,t);else if((0,u.lp)(n)||(0,u.oT)(n)){for(const e of n.getInterfaces())m(e,t);for(const e of Object.values(n.getFields())){m(e.type,t);for(const n of e.args)m(n.type,t)}}else if((0,u.hL)(n))for(const e of Object.values(n.getFields()))m(e.type,t);return t}},8555:function(e,t,n){"use strict";n.d(t,{F:function(){return d},J:function(){return f}});var 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) 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) 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endpoint="%%ENDPOINT%%",wsSchema="https:"===location.protocol?"wss:":"ws:",wsEndpoint=wsSchema+"//"+window.location.host+endpoint,fetcher=GraphiQL.createFetcher({url:endpoint,subscriptionUrl:wsEndpoint}),defaultQuery="%%DEFAULT_QUERY%%";ReactDOM.render(React.createElement(GraphiQL,{fetcher:fetcher,defaultQuery:defaultQuery,defaultSecondaryEditorOpen:!0}),document.getElementById("graphiql"));</script> </body> </html> 
diff --git a/src/graphiql/index.html b/src/graphiql/index.html
index 009fb820..a2600b63 100644
--- a/src/graphiql/index.html
+++ b/src/graphiql/index.html
@@ -23,7 +23,7 @@
     <script src="node_modules/react/umd/react.production.min.js"></script>
     <script src="node_modules/react-dom/umd/react-dom.production.min.js"></script>
     <script src="node_modules/graphiql/graphiql.min.js"></script>
-    <link rel="stylesheet" href="node_modules/graphiql/graphiql.min.css">
+    <link rel="stylesheet" href="node_modules/graphiql/graphiql.min.css" />
   </head>
   <body>
     <div id="graphiql"></div>
@@ -31,10 +31,9 @@
       var endpoint = "%%ENDPOINT%%";
       var wsSchema = location.protocol === "https:" ? "wss:" : "ws:";
       var wsEndpoint = wsSchema + "//" + window.location.host + endpoint;
-
       var fetcher = GraphiQL.createFetcher({
         url: endpoint,
-        subscriptionUrl: wsEndpoint
+        subscriptionUrl: wsEndpoint,
       });
 
       var defaultQuery = "%%DEFAULT_QUERY%%";
@@ -43,9 +42,10 @@
         React.createElement(GraphiQL, {
           fetcher: fetcher,
           defaultQuery: defaultQuery,
-          defaultSecondaryEditorOpen: true
+          defaultSecondaryEditorOpen: true,
         }),
-        document.getElementById("graphiql"));
+        document.getElementById("graphiql")
+      );
     </script>
   </body>
 </html>
diff --git a/src/graphiql/package-lock.json b/src/graphiql/package-lock.json
index e32d13fb..39e9e9d6 100644
--- a/src/graphiql/package-lock.json
+++ b/src/graphiql/package-lock.json
@@ -1,28 +1,4149 @@
 {
   "name": "dream-graphiql",
+  "lockfileVersion": 2,
   "requires": true,
-  "lockfileVersion": 1,
+  "packages": {
+    "": {
+      "name": "dream-graphiql",
+      "dependencies": {
+        "graphiql": "^2.4.1",
+        "graphql": "^16.6.0",
+        "inliner": "aantron/inliner#fork",
+        "react": "^18.2.0",
+        "react-dom": "^18.2.0"
+      }
+    },
+    "node_modules/@babel/runtime": {
+      "version": "7.21.5",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.21.5.tgz",
+      "integrity": "sha512-8jI69toZqqcsnqGGqwGS4Qb1VwLOEp4hz+CXPywcvjs60u3B4Pom/U/7rm4W8tMOYEB+E9wgD0mW1l3r8qlI9Q==",
+      "dependencies": {
+        "regenerator-runtime": "^0.13.11"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@codemirror/language": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/@codemirror/language/-/language-6.0.0.tgz",
+      "integrity": "sha512-rtjk5ifyMzOna1c7PBu7J1VCt0PvA5wy3o8eMVnxMKb7z8KA7JFecvD04dSn14vj/bBaAbqRsGed5OjtofEnLA==",
+      "peer": true,
+      "dependencies": {
+        "@codemirror/state": "^6.0.0",
+        "@codemirror/view": "^6.0.0",
+        "@lezer/common": "^1.0.0",
+        "@lezer/highlight": "^1.0.0",
+        "@lezer/lr": "^1.0.0",
+        "style-mod": "^4.0.0"
+      }
+    },
+    "node_modules/@codemirror/state": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/@codemirror/state/-/state-6.2.0.tgz",
+      "integrity": "sha512-69QXtcrsc3RYtOtd+GsvczJ319udtBf1PTrr2KbLWM/e2CXUPnh0Nz9AUo8WfhSQ7GeL8dPVNUmhQVgpmuaNGA==",
+      "peer": true
+    },
+    "node_modules/@codemirror/view": {
+      "version": "6.11.0",
+      "resolved": "https://registry.npmjs.org/@codemirror/view/-/view-6.11.0.tgz",
+      "integrity": "sha512-PRpPRkqMkAKKxEuiUBxapE0YR+wqs9At92ujbJo93PwTZ0jEJDzx9wahrDcXEhQ43Pe0RK9DdZMLWrt+QN80DA==",
+      "peer": true,
+      "dependencies": {
+        "@codemirror/state": "^6.1.4",
+        "style-mod": "^4.0.0",
+        "w3c-keyname": "^2.2.4"
+      }
+    },
+    "node_modules/@graphiql/react": {
+      "version": "0.17.2",
+      "resolved": "https://registry.npmjs.org/@graphiql/react/-/react-0.17.2.tgz",
+      "integrity": "sha512-x8iTeYSq8C520UYGk3f3S+AWOm8nf7x3OuePWg+k0KkMAWJeaeFBLmxBAGQLzK5/8/dPoZfNKblXcLwByeMHew==",
+      "dependencies": {
+        "@graphiql/toolkit": "^0.8.4",
+        "@reach/combobox": "^0.17.0",
+        "@reach/dialog": "^0.17.0",
+        "@reach/listbox": "^0.17.0",
+        "@reach/menu-button": "^0.17.0",
+        "@reach/tooltip": "^0.17.0",
+        "@reach/visually-hidden": "^0.17.0",
+        "clsx": "^1.2.1",
+        "codemirror": "^5.65.3",
+        "codemirror-graphql": "^2.0.6",
+        "copy-to-clipboard": "^3.2.0",
+        "graphql-language-service": "^5.1.4",
+        "markdown-it": "^12.2.0",
+        "set-value": "^4.1.0"
+      },
+      "peerDependencies": {
+        "graphql": "^15.5.0 || ^16.0.0",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0",
+        "react-dom": "^16.8.0 || ^17.0.0 || ^18.0.0"
+      }
+    },
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+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@reach/combobox/-/combobox-0.17.0.tgz",
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+      "dependencies": {
+        "@reach/auto-id": "0.17.0",
+        "@reach/descendants": "0.17.0",
+        "@reach/popover": "0.17.0",
+        "@reach/portal": "0.17.0",
+        "@reach/utils": "0.17.0",
+        "prop-types": "^15.7.2",
+        "tiny-warning": "^1.0.3",
+        "tslib": "^2.3.0"
+      },
+      "peerDependencies": {
+        "react": "^16.8.0 || 17.x",
+        "react-dom": "^16.8.0 || 17.x"
+      }
+    },
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+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@reach/auto-id/-/auto-id-0.17.0.tgz",
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+        "@reach/utils": "0.17.0",
+        "tslib": "^2.3.0"
+      },
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+        "react-dom": "^16.8.0 || 17.x"
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+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@reach/descendants/-/descendants-0.17.0.tgz",
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+      },
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+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@reach/popover/-/popover-0.17.0.tgz",
+      "integrity": "sha512-yYbBF4fMz4Ml4LB3agobZjcZ/oPtPsNv70ZAd7lEC2h7cvhF453pA+zOBGYTPGupKaeBvgAnrMjj7RnxDU5hoQ==",
+      "dependencies": {
+        "@reach/portal": "0.17.0",
+        "@reach/rect": "0.17.0",
+        "@reach/utils": "0.17.0",
+        "tabbable": "^4.0.0",
+        "tslib": "^2.3.0"
+      },
+      "peerDependencies": {
+        "react": "^16.8.0 || 17.x",
+        "react-dom": "^16.8.0 || 17.x"
+      }
+    },
+    "node_modules/@graphiql/react/node_modules/@reach/combobox/node_modules/@reach/popover/node_modules/@reach/rect": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@reach/rect/-/rect-0.17.0.tgz",
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+        "@reach/observe-rect": "1.2.0",
+        "@reach/utils": "0.17.0",
+        "prop-types": "^15.7.2",
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+      }
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+      "resolved": "https://registry.npmjs.org/@reach/dialog/-/dialog-0.17.0.tgz",
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+        "@reach/utils": "0.17.0",
+        "prop-types": "^15.7.2",
+        "react-focus-lock": "^2.5.2",
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+        "tslib": "^2.3.0"
+      },
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+        "react": "^16.8.0 || 17.x",
+        "react-dom": "^16.8.0 || 17.x"
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+        "tiny-warning": "^1.0.3",
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     "vscode-languageserver-types": {
-      "version": "3.16.0",
-      "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.16.0.tgz",
-      "integrity": "sha512-k8luDIWJWyenLc5ToFQQMaSrqCHiLwyKPHKPQZ5zz21vM+vIVUSvsRpcbiECH4WR88K2XZqc4ScRcZ7nk/jbeA=="
+      "version": "3.17.3",
+      "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.17.3.tgz",
+      "integrity": "sha512-SYU4z1dL0PyIMd4Vj8YOqFvHu7Hz/enbWtpfnVbJHU4Nd1YNYx8u0ennumc6h48GQNeOLxmwySmnADouT/AuZA=="
+    },
+    "w3c-keyname": {
+      "version": "2.2.6",
+      "resolved": "https://registry.npmjs.org/w3c-keyname/-/w3c-keyname-2.2.6.tgz",
+      "integrity": "sha512-f+fciywl1SJEniZHD6H+kUO8gOnwIr7f4ijKA6+ZvJFjeGi1r4PDLl53Ayud9O/rk64RqgoQine0feoeOU0kXg==",
+      "peer": true
     },
     "which-boxed-primitive": {
       "version": "1.0.2",
@@ -1963,44 +6426,48 @@
         "is-symbol": "^1.0.3"
       }
     },
+    "which-typed-array": {
+      "version": "1.1.9",
+      "resolved": "https://registry.npmjs.org/which-typed-array/-/which-typed-array-1.1.9.tgz",
+      "integrity": "sha512-w9c4xkx6mPidwp7180ckYWfMmvxpjlZuIudNtDf4N/tTAUB8VJbX25qZoAsrtGuYNnGw3pa0AXgbGKRB8/EceA==",
+      "requires": {
+        "available-typed-arrays": "^1.0.5",
+        "call-bind": "^1.0.2",
+        "for-each": "^0.3.3",
+        "gopd": "^1.0.1",
+        "has-tostringtag": "^1.0.0",
+        "is-typed-array": "^1.1.10"
+      }
+    },
     "window-size": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
-      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0="
+      "integrity": "sha512-1pTPQDKTdd61ozlKGNCjhNRd+KPmgLSGa3mZTHoOliaGcESD8G1PXhh7c1fgiPjVbNVfgy2Faw4BI8/m0cC8Mg=="
     },
     "wordwrap": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
-      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8="
+      "integrity": "sha512-xSBsCeh+g+dinoBv3GAOWM4LcVVO68wLXRanibtBSdUvkGWQRGeE9P7IwU9EmDDi4jA6L44lz15CGMwdw9N5+Q=="
     },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
     },
     "write-file-atomic": {
       "version": "1.3.4",
       "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-1.3.4.tgz",
-      "integrity": "sha1-+Aek8LHZ6ROuekgRLmzDrxmRtF8=",
+      "integrity": "sha512-SdrHoC/yVBPpV0Xq/mUZQIpW2sWXAShb/V4pomcJXh92RuaO+f3UTWItiR3Px+pLnV2PvC2/bfn5cwr5X6Vfxw==",
       "requires": {
         "graceful-fs": "^4.1.11",
         "imurmurhash": "^0.1.4",
         "slide": "^1.1.5"
       }
     },
-    "ws": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-5.2.2.tgz",
-      "integrity": "sha512-jaHFD6PFv6UgoIVda6qZllptQsMlDEJkTQcybzzXDYM1XO9Y8em691FGMPmM46WGyLU4z9KMgQN+qrux/nhlHA==",
-      "optional": true,
-      "requires": {
-        "async-limiter": "~1.0.0"
-      }
-    },
     "xdg-basedir": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/xdg-basedir/-/xdg-basedir-2.0.0.tgz",
-      "integrity": "sha1-7byQPMOF/ARSPZZqM1UEtVBNG9I=",
+      "integrity": "sha512-NF1pPn594TaRSUO/HARoB4jK8I+rWgcpVlpQCK6/6o5PHyLUt2CSiDrpUZbQ6rROck+W2EwF8mBJcTs+W98J9w==",
       "requires": {
         "os-homedir": "^1.0.0"
       }
@@ -2008,7 +6475,7 @@
     "yargs": {
       "version": "3.10.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
-      "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
+      "integrity": "sha512-QFzUah88GAGy9lyDKGBqZdkYApt63rCXYBGYnEP4xDJPXNqXXnBDACnbrXnViV6jRSqAePwrATi2i8mfYm4L1A==",
       "requires": {
         "camelcase": "^1.0.2",
         "cliui": "^2.1.0",
diff --git a/src/graphiql/package.json b/src/graphiql/package.json
index ec6fe59f..97dbeff8 100644
--- a/src/graphiql/package.json
+++ b/src/graphiql/package.json
@@ -2,10 +2,10 @@
   "name": "dream-graphiql",
   "private": true,
   "dependencies": {
-    "graphiql": "^1.4.1",
-    "graphql": "^15.5.0",
+    "graphiql": "^2.4.1",
+    "graphql": "^16.6.0",
     "inliner": "aantron/inliner#fork",
-    "react": "^17.0.2",
-    "react-dom": "^17.0.2"
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
   }
 }

From 14093e16ccede8fd29f0b4b6cdd0933e1e32cc93 Mon Sep 17 00:00:00 2001
From: Jean-Michel Bea <code@jm-bea.net>
Date: Fri, 10 Jun 2022 20:21:02 +0100
Subject: [PATCH 279/312] Reason 3.8.x releases support recent OCaml

Cherry-picked from #229.
---
 .github/workflows/test.yml           | 2 --
 example/r-fullstack-melange/esy.json | 2 +-
 example/r-graphql/esy.json           | 2 +-
 example/r-hello/esy.json             | 2 +-
 example/r-template-logic/esy.json    | 2 +-
 example/r-template-stream/esy.json   | 2 +-
 example/r-template/esy.json          | 2 +-
 example/r-tyxml/README.md            | 2 +-
 example/r-tyxml/esy.json             | 2 +-
 example/z-playground/opam-switch     | 2 +-
 10 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1634b245..a167c35e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -35,8 +35,6 @@ jobs:
 
     - run: opam depext --yes conf-postgresql
     - run: opam depext --yes conf-libev
-    # Needed until https://github.com/reasonml/reason/pull/2660 is in opam.
-    - run: opam pin add reason --yes --no-action --dev-repo
 
     # The tests require ppx_expect. The latest versions of it introduced changes
     # in the formatting of the output, and also require OCaml >= 4.10, which
diff --git a/example/r-fullstack-melange/esy.json b/example/r-fullstack-melange/esy.json
index 9612eb3d..c2241544 100644
--- a/example/r-fullstack-melange/esy.json
+++ b/example/r-fullstack-melange/esy.json
@@ -4,7 +4,7 @@
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^3.0",
-    "@opam/reason": "^3.7.0",
+    "@opam/reason": "^3.8.0",
     "melange": "melange-re/melange",
     "ocaml": "^4.14.0"
   },
diff --git a/example/r-graphql/esy.json b/example/r-graphql/esy.json
index 0bc13c60..6482d70e 100644
--- a/example/r-graphql/esy.json
+++ b/example/r-graphql/esy.json
@@ -3,7 +3,7 @@
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^3.0",
-    "@opam/reason": "^3.7.0",
+    "@opam/reason": "^3.8.0",
     "ocaml": "^4.14.0"
   },
   "devDependencies": {
diff --git a/example/r-hello/esy.json b/example/r-hello/esy.json
index 636d8f3f..f310f7ec 100644
--- a/example/r-hello/esy.json
+++ b/example/r-hello/esy.json
@@ -3,7 +3,7 @@
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^3.0",
-    "@opam/reason": "^3.7.0",
+    "@opam/reason": "^3.8.0",
     "ocaml": "^4.14.0"
   },
   "devDependencies": {
diff --git a/example/r-template-logic/esy.json b/example/r-template-logic/esy.json
index 366d43f6..e29ae7c3 100644
--- a/example/r-template-logic/esy.json
+++ b/example/r-template-logic/esy.json
@@ -3,7 +3,7 @@
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^3.0",
-    "@opam/reason": "^3.7.0",
+    "@opam/reason": "^3.8.0",
     "ocaml": "^4.14.0"
   },
   "devDependencies": {
diff --git a/example/r-template-stream/esy.json b/example/r-template-stream/esy.json
index c1d1ccaa..3ef68400 100644
--- a/example/r-template-stream/esy.json
+++ b/example/r-template-stream/esy.json
@@ -3,7 +3,7 @@
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^3.0",
-    "@opam/reason": "^3.7.0",
+    "@opam/reason": "^3.8.0",
     "ocaml": "^4.14.0"
   },
   "devDependencies": {
diff --git a/example/r-template/esy.json b/example/r-template/esy.json
index 366d43f6..e29ae7c3 100644
--- a/example/r-template/esy.json
+++ b/example/r-template/esy.json
@@ -3,7 +3,7 @@
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^3.0",
-    "@opam/reason": "^3.7.0",
+    "@opam/reason": "^3.8.0",
     "ocaml": "^4.14.0"
   },
   "devDependencies": {
diff --git a/example/r-tyxml/README.md b/example/r-tyxml/README.md
index b0fa8508..26a6d273 100644
--- a/example/r-tyxml/README.md
+++ b/example/r-tyxml/README.md
@@ -44,7 +44,7 @@ To get this, we depend on package `tyxml-jsx` in
   "dependencies": {
     "@opam/dream": "1.0.0~alpha4",
     "@opam/dune": "^2.0",
-    "@opam/reason": "^3.7.0",
+    "@opam/reason": "^3.8.0",
     "@opam/tyxml": "*",
     <b>"@opam/tyxml-jsx": "*",</b>
     "ocaml": "4.12.x"
diff --git a/example/r-tyxml/esy.json b/example/r-tyxml/esy.json
index 1dbab688..3010d31e 100644
--- a/example/r-tyxml/esy.json
+++ b/example/r-tyxml/esy.json
@@ -3,7 +3,7 @@
     "@opam/conf-libssl": "3",
     "@opam/dream": "1.0.0~alpha5",
     "@opam/dune": "^3.0",
-    "@opam/reason": "^3.7.0",
+    "@opam/reason": "^3.8.0",
     "@opam/tyxml": "*",
     "@opam/tyxml-jsx": "*",
     "ocaml": "^4.14.0"
diff --git a/example/z-playground/opam-switch b/example/z-playground/opam-switch
index cb55fb78..feee2adc 100644
--- a/example/z-playground/opam-switch
+++ b/example/z-playground/opam-switch
@@ -95,7 +95,7 @@ installed: [
   "psq.0.2.0"
   "ptime.0.8.6"
   "re.1.10.3"
-  "reason.3.7.0"
+  "reason.3.8.0"
   "result.1.5"
   "rresult.0.7.0"
   "seq.base"

From e14bd91a4481fe36baa38347d3e3746ac545ddbe Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 11 May 2023 06:51:12 +0300
Subject: [PATCH 280/312] Remove deprecated values

Path getter and setter not removed. See #238. not_found just deprecated,
so not removed, for users to have more of a chance to adapt.
---
 src/dream.ml          |  46 ------------
 src/dream.mli         | 169 ------------------------------------------
 src/server/tag.eml.ml |  31 --------
 3 files changed, 246 deletions(-)

diff --git a/src/dream.ml b/src/dream.ml
index 9f01675b..7409ac00 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -209,9 +209,6 @@ let verify_csrf_token = Csrf.verify_csrf_token ~now
 
 (* Templates *)
 
-let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
-  Tag.form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
-
 let csrf_tag = Tag.csrf_tag ~now
 
 
@@ -274,7 +271,6 @@ let session_expires_at = Session.session_expires_at
 
 let flash = Flash.flash_messages
 let flash_messages = Flash.flash
-let put_flash = Flash.put_flash
 let add_flash_message = Flash.put_flash
 
 
@@ -400,48 +396,6 @@ let echo = Echo.echo
 
 (* Deprecated helpers. *)
 
-let with_client client message =
-  Helpers.set_client message client;
-  message
-
-let with_method_ method_ message =
-  Message.set_method_ message method_;
-  message
-
 let with_path path message =
   Router.set_path message path;
   message
-
-let with_header name value message =
-  Message.set_header message name value;
-  message
-
-let with_body body message =
-  Message.set_body message body;
-  message
-
-let with_stream message =
-  message
-
-let write_buffer ?(offset = 0) ?length message chunk =
-  let length =
-    match length with
-    | Some length -> length
-    | None -> Bigstringaf.length chunk - offset
-  in
-  let string = Bigstringaf.substring chunk ~off:offset ~len:length in
-  write (Message.server_stream message) string
-
-type 'a local = 'a Message.field
-let new_local = Message.new_field
-let local = Message.field
-
-let with_local key value message =
-  Message.set_field message key value;
-  message
-
-let first message =
-  message
-
-let last message =
-  message
diff --git a/src/dream.mli b/src/dream.mli
index 9d55391c..4d122e2f 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -386,25 +386,9 @@ https://github.com/aantron/dream/issues
 val set_client : request -> string -> unit
 (** Replaces the client. See {!Dream.val-client}. *)
 
-(**/**)
-val with_client : string -> request -> request
-[@@ocaml.deprecated
-"Use Dream.set_client. See
-https://aantron.github.io/dream/#val-set_client
-"]
-(**/**)
-
 val set_method_ : request -> [< method_ ] -> unit
 (** Replaces the method. See {!Dream.type-method_}. *)
 
-(**/**)
-val with_method_ : [< method_ ] -> request -> request
-[@@ocaml.deprecated
-"Use Dream.set_method_. See
-https://aantron.github.io/dream/#val-set_method_
-"]
-(**/**)
-
 (**/**)
 val with_path : string list -> request -> request
 [@@ocaml.deprecated
@@ -533,14 +517,6 @@ val drop_header : 'a message -> string -> unit
 val set_header : 'a message -> string -> string -> unit
 (** Equivalent to {!Dream.drop_header} followed by {!Dream.add_header}. *)
 
-(**/**)
-val with_header : string -> string -> 'a message -> 'a message
-[@@ocaml.deprecated
-"Use Dream.set_header. See
-https://aantron.github.io/dream/#val-with_header
-"]
-(**/**)
-
 
 
 (** {1 Cookies}
@@ -704,14 +680,6 @@ val body : 'a message -> string promise
 val set_body : 'a message -> string -> unit
 (** Replaces the body. *)
 
-(**/**)
-val with_body : string -> response -> response
-[@@ocaml.deprecated
-"Use Dream.set_body. See
-https://aantron.github.io/dream/#val-set_body
-"]
-(**/**)
-
 
 
 (** {1 Streams} *)
@@ -749,14 +717,6 @@ val read : stream -> string option promise
 (* TODO Document difference between receiving a request and receiving on a
    WebSocket. *)
 
-(**/**)
-val with_stream : response -> response
-[@@ocaml.deprecated
-"Use Dream.stream instead. See
-https://aantron.github.io/dream/#val-set_stream
-"]
-(**/**)
-
 val write : stream -> string -> unit promise
 (** Streams out the string. The promise is fulfilled when the response can
     accept more writes. *)
@@ -868,15 +828,6 @@ val abort_stream : stream -> exn -> unit
 (** Aborts the stream, causing all readers and writers to receive the given
     exception. *)
 
-(**/**)
-val write_buffer :
-  ?offset:int -> ?length:int -> response -> buffer -> unit promise
-[@@ocaml.deprecated
-"Use Dream.write_stream. See
-https://aantron.github.io/dream/#val-write_stream
-"]
-(**/**)
-
 (* TODO Ergonomics of this stream surface API. *)
 
 
@@ -1334,46 +1285,6 @@ val csrf_tag : request -> string
     recommended} to put the CSRF tag immediately after the starting [<form>]
     tag, to prevent certain kinds of DOM manipulation-based attacks. *)
 
-(**/**)
-val form_tag :
-  ?method_:[< method_ ] ->
-  ?target:string ->
-  ?enctype:[< `Multipart_form_data ] ->
-  ?csrf_token:bool ->
-    action:string -> request -> string
-[@ocaml.deprecated
-"Use Dream.csrf_tag. See
-https://aantron.github.io/dream/#val-csrf_tag
-"]
-(** Generates a [<form>] tag and an [<input>] tag with a CSRF token, suitable
-    for use with {!Dream.val-form} and {!Dream.val-multipart}. For example, in
-    a template,
-
-    {[
-      <%s! Dream.form_tag ~action:"/" request %>
-        <input name="my.field">
-      </form>
-    ]}
-
-    expands to
-
-    {[
-      <form method="POST" action="/">
-        <input name="dream.csrf" type="hidden" value="a-token">
-        <input name="my.field">
-      </form>
-    ]}
-
-    [~method] sets the method used to submit the form. The default is [`POST].
-
-    [~target] adds a [target] attribute. For example, [~target:"_blank"] causes
-    the browser to submit the form in a new tab or window.
-
-    Pass [~enctype:`Multipart_form_data] for a file upload form.
-
-    [~csrf_token:false] suppresses generation of the [dream.csrf] field. *)
-(**/**)
-
 
 
 (** {1 Middleware}
@@ -1646,37 +1557,13 @@ val mime_lookup : string -> (string * string) list
 val session_field : request -> string -> string option
 (** Value from the request's session. *)
 
-(**/**)
-val session : string -> request -> string option
-[@ocaml.deprecated
-"Renamed to Dream.session_field. See
-https://aantron.github.io/dream/#val-session_field
-"]
-(**/**)
-
 val set_session_field : request -> string -> string -> unit promise
 (** Mutates a value in the request's session. The back end may commit the value
     to storage immediately, so this function returns a promise. *)
 
-(**/**)
-val put_session : string -> string -> request -> unit promise
-[@ocaml.deprecated
-"Renamed to Dream.set_session_field. See
-https://aantron.github.io/dream/#val-set_session_field
-"]
-(**/**)
-
 val all_session_fields : request -> (string * string) list
 (** Full session dictionary. *)
 
-(**/**)
-val all_session_values : request -> (string * string) list
-[@ocaml.deprecated
-"Renamed to Dream.all_session_fields. See
-https://aantron.github.io/dream/#val-all_session_fields
-"]
-(**/**)
-
 val invalidate_session : request -> unit promise
 (** Invalidates the request's session, replacing it with a fresh, empty
     pre-session. *)
@@ -1734,14 +1621,6 @@ val flash_messages : request -> (string * string) list
 val add_flash_message : request -> string -> string -> unit
 (** Adds a flash message to the request. *)
 
-(**/**)
-val put_flash : request -> string -> string -> unit
-[@@ocaml.deprecated
-"Renamed to Dream.add_flash_message. See
-https://aantron.github.io/dream/#val-add_flash_message
-"]
-(**/**)
-
 
 
 (** {1 GraphQL}
@@ -2513,49 +2392,17 @@ val decrypt :
 type 'a field
 (** Per-message variable. *)
 
-(**/**)
-type 'a local = 'a field
-[@@ocaml.deprecated
-"Renamed to type Dream.field. See
-https://aantron.github.io/dream/#type-field
-"]
-(**/**)
-
 val new_field : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
 (** Declares a variable of type ['a] in all messages. The variable is initially
     unset in each message. The optional [~name] and [~show_value] are used by
     {!Dream.run} [~debug] to show the variable in debug dumps. *)
 
-(**/**)
-val new_local : ?name:string -> ?show_value:('a -> string) -> unit -> 'a field
-[@@ocaml.deprecated
-"Renamed to Dream.new_field. See
-https://aantron.github.io/dream/#val-new_field
-"]
-(**/**)
-
 val field : 'b message -> 'a field -> 'a option
 (** Retrieves the value of the per-message variable. *)
 
-(**/**)
-val local : 'b message -> 'a field -> 'a option
-[@@ocaml.deprecated
-"Renamed to Dream.field. See
-https://aantron.github.io/dream/#val-field
-"]
-(**/**)
-
 val set_field : 'b message -> 'a field -> 'a -> unit
 (** Sets the per-message variable to the value. *)
 
-(**/**)
-val with_local : 'a field -> 'a -> 'b message -> 'b message
-[@@ocaml.deprecated
-"Use Dream.set_field instead. See
-https://aantron.github.io/dream/#val-set_field
-"]
-(**/**)
-
 
 
 (** {1 Testing} *)
@@ -2578,22 +2425,6 @@ val test : ?prefix:string -> handler -> (request -> response)
     the test is not wrapped in a promise. If you don't need these facilities,
     you can test [handler] by calling it directly with a request. *)
 
-(**/**)
-val first : 'a message -> 'a message
-[@@ocaml.deprecated "Simply returns its own argument."]
-(** [Dream.first message] evaluates to the original request or response that
-    [message] is immutably derived from. This is useful for getting the original
-    state of requests especially, when they were first created inside the HTTP
-    server ({!Dream.run}). *)
-
-val last : 'a message -> 'a message
-[@@ocaml.deprecated "Simply returns its own argument."]
-(** [Dream.last message] evaluates to the latest request or response that was
-    derived from [message]. This is most useful for obtaining the state of
-    requests at the time an exception was raised, without having to instrument
-    the latest version of the request before the exception. *)
-(**/**)
-
 val sort_headers : (string * string) list -> (string * string) list
 (** Sorts headers by name. Headers with the same name are not sorted by value or
     otherwise reordered, because order is significant for some headers. See
diff --git a/src/server/tag.eml.ml b/src/server/tag.eml.ml
index f22a4e2b..981d56ab 100644
--- a/src/server/tag.eml.ml
+++ b/src/server/tag.eml.ml
@@ -19,34 +19,3 @@ module Method = Dream_pure.Method
 let csrf_tag ~now request =
   let token = Csrf.csrf_token ~now request in
   <input name="<%s! Csrf.field_name %>" type="hidden" value="<%s! token %>">
-
-(* TODO Include the path prefix. *)
-let form_tag
-    ~now ?method_ ?target ?enctype ?csrf_token ~action request =
-
-  let method_ =
-    match method_ with
-    | None -> Method.method_to_string `POST
-    | Some method_ -> Method.method_to_string method_
-  in
-  let target =
-    match target with
-    | Some target -> " target=\"" ^ Dream.html_escape target ^ "\""
-    | None -> ""
-  in
-  let enctype =
-    match enctype with
-    | Some `Multipart_form_data -> " enctype=\"multipart/form-data\""
-    | None -> ""
-  in
-  let csrf_token =
-    match csrf_token with
-    | None -> true
-    | Some csrf_token -> csrf_token
-  in
-  <form
-    method="<%s! method_ %>"
-    action="<%s action %>"<%s! target %><%s! enctype %>>
-% if csrf_token then begin
-    <%s! csrf_tag ~now request %>
-% end;

From c7da98b718b56fbc6a4b388b07ed462bb80ebd16 Mon Sep 17 00:00:00 2001
From: Yawar Amin <yawar.amin@gmail.com>
Date: Sun, 14 May 2023 01:13:14 -0400
Subject: [PATCH 281/312] Fix typo (#281)

---
 src/dream.mli | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/dream.mli b/src/dream.mli
index 4d122e2f..d78666ac 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -869,7 +869,7 @@ val send :
   ?text_or_binary:[< text_or_binary ] ->
   ?end_of_message:[< end_of_message ] ->
     websocket -> string -> unit promise
-(** Sends a single WebSocket message. The WebSocket is ready another message
+(** Sends a single WebSocket message. The WebSocket is ready for another message
     when the promise resolves.
 
     With [~text_or_binary:`Text], the default, the message is interpreted as a

From d35a6338d1b2fa8a2042412151f42e735ee4653f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 14 May 2023 08:14:33 +0300
Subject: [PATCH 282/312] Update dream-serve and add a couple tests

---
 Makefile                            |  2 +-
 test/expect/pure/message/message.ml | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 3010c0c9..b95a344f 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,7 @@ test-watch :
 
 .PHONY : coverage-serve
 coverage-serve :
-	cd _coverage && dune exec -- serve -p 8082
+	cd _coverage && dune exec -- dream-serve -p 8082
 
 .PHONY : promote
 promote :
diff --git a/test/expect/pure/message/message.ml b/test/expect/pure/message/message.ml
index 90e04e85..b117639f 100644
--- a/test/expect/pure/message/message.ml
+++ b/test/expect/pure/message/message.ml
@@ -5,6 +5,16 @@
 
 
 
+let%expect_test "default status is OK" =
+  Dream.status (Dream.response "") |> Dream.status_to_string |> print_endline;
+  [%expect {| OK |}]
+
+let%expect_test "set_status" =
+  let response = Dream.response "" in
+  Dream.set_status response `Not_Found;
+  Dream.status response |> Dream.status_to_string |> print_endline;
+  [%expect {| Not Found |}]
+
 let%expect_test "middleware runs sequentially onion-style" =
   let handler _ =
     print_endline "handler";

From f5558638f33c2c54a8f3d9350795df48201c8590 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 14 May 2023 16:34:55 +0300
Subject: [PATCH 283/312] Upgrades while rebuilding the playground

---
 example/z-playground/server/playground.ml | 2 +-
 example/z-playground/server/setup.sh      | 6 +++---
 example/z-playground/server/sync.sh       | 1 +
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/example/z-playground/server/playground.ml b/example/z-playground/server/playground.ml
index 52a7e665..3faa20bd 100644
--- a/example/z-playground/server/playground.ml
+++ b/example/z-playground/server/playground.ml
@@ -41,7 +41,7 @@ let sandbox_dune_no_eml = {|(executable
  (preprocess (pps lwt_ppx ppx_yojson_conv tyxml-jsx tyxml-ppx)))
 |}
 
-let base_dockerfile = {|FROM ubuntu:focal-20210416
+let base_dockerfile = {|FROM ubuntu:jammy-20230425
 RUN apt update && apt install -y openssl libev4 libsqlite3-0
 WORKDIR /www
 COPY db.sqlite db.sqlite
diff --git a/example/z-playground/server/setup.sh b/example/z-playground/server/setup.sh
index 2657f90b..6213563a 100644
--- a/example/z-playground/server/setup.sh
+++ b/example/z-playground/server/setup.sh
@@ -22,7 +22,7 @@ sudo apt install -y docker-ce
 sudo apt install -y build-essential m4 unzip bubblewrap pkg-config
 
 # Install opam itself.
-wget -O opam https://github.com/ocaml/opam/releases/download/2.0.8/opam-2.0.8-x86_64-linux
+wget -O opam https://github.com/ocaml/opam/releases/download/2.1.4/opam-2.1.4-x86_64-linux
 sudo mv opam /usr/local/bin/
 sudo chmod a+x /usr/local/bin/opam
 
@@ -33,7 +33,7 @@ sudo apt install -y npm
 sudo apt install -y libev-dev libsqlite3-dev libssl-dev pkg-config
 
 # Create users. User playground is used for building and running the playground.
-# The reason there isn't a separate user for buulding it is that the playground
+# The reason there isn't a separate user for building it is that the playground
 # itself will use the build setup to build the sandboxes. User sandbox is for
 # the containers.
 sudo adduser --disabled-password playground
@@ -45,7 +45,7 @@ sudo adduser --system sandbox
 
 # Initialize opam and install a compiler.
 sudo -H -u playground opam init --no-setup --bare
-sudo -H -u playground opam switch create 4.12.0
+sudo -H -u playground opam switch create 5.0.0
 
 # Set up UFW.
 sudo ufw allow ssh
diff --git a/example/z-playground/server/sync.sh b/example/z-playground/server/sync.sh
index 0589c339..3dce1b2b 100644
--- a/example/z-playground/server/sync.sh
+++ b/example/z-playground/server/sync.sh
@@ -100,6 +100,7 @@ set +x
 echo
 echo "If this is the first sync, run as playground@$HOST in ~/playground:"
 echo "  opam install --deps-only ./dream-pure.opam ./dream-httpaf.opam ./dream.opam"
+echo "  cd example/z-playground/"
 echo "  opam switch export opam-switch"
 echo "  npm install"
 echo "Then, as root@$HOST:"

From 6e666d4c7079b29d2f287febe312cae20c116900 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 14 May 2023 16:55:08 +0300
Subject: [PATCH 284/312] Playground: update lockfiles

---
 example/z-playground/opam-switch       | 178 +++++++++++++------------
 example/z-playground/package-lock.json |  15 ++-
 2 files changed, 104 insertions(+), 89 deletions(-)

diff --git a/example/z-playground/opam-switch b/example/z-playground/opam-switch
index feee2adc..98425dfa 100644
--- a/example/z-playground/opam-switch
+++ b/example/z-playground/opam-switch
@@ -1,117 +1,119 @@
 opam-version: "2.0"
-compiler: [
-  "base-bigarray.base"
-  "base-threads.base"
-  "base-unix.base"
-  "ocaml.4.12.0"
-  "ocaml-base-compiler.4.12.0"
-  "ocaml-config.2"
-  "ocaml-options-vanilla.1"
+compiler: ["ocaml-base-compiler.5.0.0"]
+roots: [
+  "angstrom.0.15.0"
+  "base64.3.5.1"
+  "bigarray-compat.1.1.0"
+  "bigstringaf.0.9.1"
+  "camlp-streams.5.0.1"
+  "caqti.1.9.0"
+  "caqti-lwt.1.9.0"
+  "conf-libev.4-12"
+  "cstruct.6.2.0"
+  "digestif.1.1.4"
+  "dune.3.7.1"
+  "faraday.0.8.2"
+  "faraday-lwt-unix.0.8.2"
+  "fmt.0.9.0"
+  "graphql-lwt.0.14.0"
+  "graphql_parser.0.14.0"
+  "hmap.0.8.1"
+  "ke.0.6"
+  "logs.0.7.0"
+  "lwt.5.6.1"
+  "lwt_ppx.2.1.0"
+  "lwt_ssl.1.2.0"
+  "magic-mime.1.3.0"
+  "mirage-clock.4.2.0"
+  "mirage-crypto.0.11.1"
+  "mirage-crypto-rng.0.11.1"
+  "mirage-crypto-rng-lwt.0.11.1"
+  "multipart_form.0.5.0"
+  "multipart_form-lwt.0.5.0"
+  "ocaml-base-compiler.5.0.0"
+  "psq.0.2.1"
+  "ptime.1.1.0"
+  "result.1.5"
+  "ssl.0.5.13"
+  "uri.4.2.0"
+  "yojson.2.1.0"
 ]
-roots: ["ocaml-base-compiler.4.12.0"]
 installed: [
   "angstrom.0.15.0"
-  "base.v0.14.3"
   "base-bigarray.base"
   "base-bytes.base"
+  "base-domains.base"
+  "base-nnp.base"
   "base-threads.base"
   "base-unix.base"
-  "base64.3.5.0"
+  "base64.3.5.1"
   "bigarray-compat.1.1.0"
-  "bigarray-overlap.0.2.0"
-  "bigstringaf.0.8.0"
-  "biniou.1.2.1"
-  "bisect_ppx.2.8.0"
-  "caqti.1.6.0"
-  "caqti-driver-sqlite3.1.6.0"
-  "caqti-lwt.1.6.0"
-  "cmdliner.1.1.0"
+  "bigarray-overlap.0.2.1"
+  "bigstringaf.0.9.1"
+  "camlp-streams.5.0.1"
+  "caqti.1.9.0"
+  "caqti-lwt.1.9.0"
   "conf-libev.4-12"
-  "conf-libssl.3"
+  "conf-libssl.4"
   "conf-pkg-config.2"
-  "conf-sqlite3.1"
-  "cppo.1.6.8"
-  "csexp.1.5.1"
-  "cstruct.6.0.1"
-  "cudf.0.9-1"
-  "digestif.1.1.0"
-  "dune.2.9.3"
-  "dune-configurator.2.9.3"
-  "duration.0.2.0"
-  "easy-format.1.3.2"
-  "eqaf.0.8"
-  "extlib.1.7.8"
-  "faraday.0.8.1"
-  "faraday-lwt.0.8.1"
-  "faraday-lwt-unix.0.8.1"
-  "fix.20220121"
+  "cppo.1.6.9"
+  "csexp.1.5.2"
+  "cstruct.6.2.0"
+  "digestif.1.1.4"
+  "dune.3.7.1"
+  "dune-configurator.3.7.1"
+  "duration.0.2.1"
+  "eqaf.0.9"
+  "faraday.0.8.2"
+  "faraday-lwt.0.8.2"
+  "faraday-lwt-unix.0.8.2"
   "fmt.0.9.0"
-  "graphql.0.13.0"
-  "graphql-lwt.0.13.0"
-  "graphql_parser.0.13.0"
+  "graphql.0.14.0"
+  "graphql-lwt.0.14.0"
+  "graphql_parser.0.14.0"
   "hmap.0.8.1"
-  "ke.0.4"
+  "ke.0.6"
   "logs.0.7.0"
-  "lwt.5.5.0"
-  "lwt_ppx.2.0.3"
-  "lwt_ssl.1.1.3"
-  "magic-mime.1.2.0"
-  "markup.1.0.2"
-  "menhir.20220210"
-  "menhirLib.20220210"
-  "menhirSdk.20220210"
-  "merlin-extend.0.6"
-  "mirage-clock.4.1.0"
-  "mirage-crypto.0.10.5"
-  "mirage-crypto-rng.0.10.5"
-  "mmap.1.1.0"
-  "mtime.1.3.0"
-  "multipart-form-data.0.3.0"
-  "multipart_form.0.4.0"
-  "multipart_form-lwt.0.4.0"
-  "ocaml.4.12.0"
-  "ocaml-base-compiler.4.12.0"
+  "lwt.5.6.1"
+  "lwt_ppx.2.1.0"
+  "lwt_ssl.1.2.0"
+  "magic-mime.1.3.0"
+  "menhir.20230415"
+  "menhirLib.20230415"
+  "menhirSdk.20230415"
+  "mirage-clock.4.2.0"
+  "mirage-crypto.0.11.1"
+  "mirage-crypto-rng.0.11.1"
+  "mirage-crypto-rng-lwt.0.11.1"
+  "mtime.2.0.0"
+  "multipart_form.0.5.0"
+  "multipart_form-lwt.0.5.0"
+  "ocaml.5.0.0"
+  "ocaml-base-compiler.5.0.0"
   "ocaml-compiler-libs.v0.12.4"
-  "ocaml-config.2"
-  "ocaml-migrate-parsetree.2.3.0"
+  "ocaml-config.3"
   "ocaml-options-vanilla.1"
   "ocaml-syntax-shims.1.0.0"
-  "ocamlbuild.0.14.1"
-  "ocamlfind.1.9.3"
-  "ocamlgraph.2.0.0"
+  "ocamlbuild.0.14.2"
+  "ocamlfind.1.9.6"
   "ocplib-endian.1.2"
-  "octavius.1.2.2"
-  "opam-core.2.1.2"
-  "opam-file-format.2.1.3"
-  "opam-format.2.1.2"
-  "opam-installer.2.1.2"
   "pecu.0.6"
   "ppx_derivers.1.2.1"
-  "ppx_js_style.v0.14.1"
-  "ppx_yojson_conv.v0.14.0"
-  "ppx_yojson_conv_lib.v0.14.0"
-  "ppxlib.0.24.0"
-  "prettym.0.0.2"
-  "psq.0.2.0"
-  "ptime.0.8.6"
-  "re.1.10.3"
-  "reason.3.8.0"
+  "ppxlib.0.29.1"
+  "prettym.0.0.3"
+  "psq.0.2.1"
+  "ptime.1.1.0"
+  "re.1.10.4"
   "result.1.5"
   "rresult.0.7.0"
   "seq.base"
-  "sexplib0.v0.14.0"
-  "sqlite3.5.1.0"
-  "ssl.0.5.10"
+  "sexplib0.v0.15.1"
+  "ssl.0.5.13"
   "stdlib-shims.0.3.0"
   "stringext.1.6.0"
-  "topkg.1.0.5"
-  "tyxml.4.5.0"
-  "tyxml-jsx.4.5.0"
-  "tyxml-ppx.4.5.0"
-  "tyxml-syntax.4.5.0"
-  "uchar.0.0.2"
+  "topkg.1.0.7"
   "unstrctrd.0.3"
   "uri.4.2.0"
   "uutf.1.0.3"
-  "yojson.1.7.0"
+  "yojson.2.1.0"
 ]
diff --git a/example/z-playground/package-lock.json b/example/z-playground/package-lock.json
index f34206be..1e3143e1 100644
--- a/example/z-playground/package-lock.json
+++ b/example/z-playground/package-lock.json
@@ -1,7 +1,20 @@
 {
   "name": "dream-playground",
+  "lockfileVersion": 2,
   "requires": true,
-  "lockfileVersion": 1,
+  "packages": {
+    "": {
+      "name": "dream-playground",
+      "dependencies": {
+        "codemirror": "*"
+      }
+    },
+    "node_modules/codemirror": {
+      "version": "5.61.0",
+      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.61.0.tgz",
+      "integrity": "sha512-D3wYH90tYY1BsKlUe0oNj2JAhQ9TepkD51auk3N7q+4uz7A/cgJ5JsWHreT0PqieW1QhOuqxQ2reCXV1YXzecg=="
+    }
+  },
   "dependencies": {
     "codemirror": {
       "version": "5.61.0",

From e529b0eb1597c5fc7e03fd490d578a1a9d5b1a42 Mon Sep 17 00:00:00 2001
From: Tom Ekander <ekander.tom@gmail.com>
Date: Mon, 22 May 2023 15:08:23 +0200
Subject: [PATCH 285/312] Docs: add light- heme and use save in local storage
 (#268)

Also removed the shadow on the <h1> element. It was probably left over
from an early version of the dark theme, before Dream's alpha 1 release.

Resolves #235.

Co-authored-by: Anton Bachin <antonbachin@yahoo.com>
---
 docs/web/site/docs.css        | 110 +++++++++++++++++++++++++++-------
 docs/web/site/docs.js         |  36 ++++++++++-
 docs/web/templates/index.html |   4 ++
 3 files changed, 125 insertions(+), 25 deletions(-)

diff --git a/docs/web/site/docs.css b/docs/web/site/docs.css
index 48bd4240..275f3a08 100644
--- a/docs/web/site/docs.css
+++ b/docs/web/site/docs.css
@@ -60,6 +60,47 @@
   src: url('tenor-sans-v12-latin-regular.woff2') format('woff2');
 }
 
+/* Theme */
+
+/* Dark theme (default) */
+:root, body:not([data-theme="light"]) {
+  --bg-color: #131618;
+  --text-color: #c9d1d9;
+  --code-bg-color: #2c333b;
+  --border-color: #282828;
+  --link-color: #8dc5ff;
+  --external-link-color: #5d7fcd;
+  --anchor-color: #bfcdea;
+
+  --of-color: #bec5cd;
+  --target-backing-color: #390022;
+
+  --hljs-keyword-color: #ff6c9b;
+  --hljs-identifier-color: #70df5c;
+  --hljs-tag-color: #c28eff;
+  --hljs-string-color: #e3db7a;
+}
+
+/* Light theme */
+:root, body[data-theme="light"] {
+  --bg-color: #f5f7fa;
+  --text-color: #1f2937;
+  --code-bg-color: #eef1f6;
+  --header-bg-color: #f5f7fa;
+  --border-color: #e0e0e0;
+  --link-color: #1c7ed6;
+  --external-link-color: #1d4ed8;
+  --anchor-color: #888;
+
+  --of-color: #6b7280;
+  --target-backing-color: #f7f6f3;
+
+  --hljs-keyword-color: #d94879;
+  --hljs-identifier-color: #22863a;
+  --hljs-tag-color: #6f42c1;
+  --hljs-string-color: #b94e48;
+}
+
 body {
   font-family: Lato, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Open Sans, Helvetica Neue, Helvetica, Arial, sans-serif;
   font-size: 16px;
@@ -101,15 +142,15 @@ h6 {
 /* Colors and presentation styles. */
 
 body {
-  background-color: #131618;
-  color: #c9d1d9;
+  background-color: var(--bg-color);
+  color: var(--text-color);
 }
 
 .odoc-content pre {
-  background-color: #1a1f26;
+  background-color: var(--code-bg-color);
   margin-left: 1em;
   margin-right: 1em;
-  border: 1px solid #111;
+  border: 1px solid var(--border-color);
 }
 .odoc-content .spec > pre {
   background: none;
@@ -119,7 +160,7 @@ body {
 
 .odoc-content code {
   /* color: #ddd; */
-  background-color: #2c333b;
+  background-color: var(--code-bg-color);
   padding: 0 5px;
   margin: 0 1px;
   white-space: nowrap;
@@ -150,17 +191,40 @@ body {
 } */
 
 header {
-  background-color: #131618;
-  border-bottom: 1px solid #282828;
+  background-color: var(--bg-color);
+  border-bottom: 1px solid var(--border-color);
 }
 
 header .topmost {
   /* background-color: #0f131a; */
-  border-bottom: 1px solid #282828;
+  border-bottom: 1px solid var(--border-color);
 }
 
-h1 {
-  text-shadow: -2px 2px black;
+.topmost .toolbar {
+  float: right;
+}
+
+.topmost .toggle-theme-btn {
+  all: unset;
+  position: relative;
+}
+
+.topmost .toggle-theme-btn::before {
+  content: "\F186"; /* moon */
+  position: absolute;
+  left: calc(0% - 16px + -8px);
+  top: calc(0% + 4px);
+  width: 16px;
+  height: 16px;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  font-family: FontAwesome, FontAwesomeBrands;
+  font-size: 15px;
+}
+
+body:not([data-theme="light"]) .topmost .toggle-theme-btn::before {
+  content: "\F185"; /* sun */
 }
 
 header pre {
@@ -191,7 +255,7 @@ footer {
 }
 
 :target .backing {
-  background-color: #390022;
+  background-color: var(--target-backing-color);
 }
 
 nav ~ * a[href="#builtin"],
@@ -214,7 +278,7 @@ a[href^=http]::after {
   font-family: FontAwesome;
   font-size: 10px;
   line-height: 18px;
-  color: #5d7fcd;
+  color: var(--external-link-color);
   position: relative;
   top: -1px;
   margin-left: 2px;
@@ -225,7 +289,7 @@ a[href^=http]::after {
 }
 
 a, a:visited, a:active {
-  color: #8dc5ff;
+  color: var(--link-color);
   text-decoration: none;
 }
 
@@ -234,27 +298,27 @@ a:hover {
 }
 
 .odoc-content a > code {
-  color: #8dc5ff;
+  color: var(--link-color);
 }
 
 .hljs-module-access, .hljs-keyword, .keyword {
-  color: #ff6c9b;
+  color: var(--hljs-keyword-color);
 }
 
 .hljs-identifier, .hljs-literal, .hljs-type {
-  color: #70df5c;
+  color: var(--hljs-identifier-color);
 }
 
 .hljs-tag {
-  color: #c28eff;
+  color: var(--hljs-tag-color);
 }
 
 .hljs-string {
-  color: #e3db7a;
+  color: var(--hljs-string-color);
 }
 
 .of {
-  color: #bec5cd;
+  color: var(--of-color);
 }
 
 .topmost ul {
@@ -407,7 +471,7 @@ ul ul li {
     height: 100%;
     width: 43rem;
     /* background-color: #262626; */
-    border-right: 1px solid #282828;
+    border-right: 1px solid var(--border-color);
   }
 
   h2, h2 ~ :not(.odoc-spec):not(nav), footer {
@@ -582,8 +646,8 @@ h2:first-of-type {
     overflow-y: scroll;
     scrollbar-width: none;
     line-height: 30px;
-    border-right: 1px solid #262626;
-    background-color: #131618;
+    border-right: 1px solid var(--border-color);
+    background-color: var(--bg-color);
     /* color: #ddd; */
   }
   .odoc-toc::-webkit-scrollbar {
@@ -674,7 +738,7 @@ h2 > .anchor, h3 > .anchor {
   font-family: FontAwesome;
   font-size: 10px;
   font-style: oblique;
-  color: #bfcdea;
+  color: var(--anchor-color);
   position: relative;
   top: -1.75px;
   left: -4px;
diff --git a/docs/web/site/docs.js b/docs/web/site/docs.js
index 8b404bf1..7dd4a374 100644
--- a/docs/web/site/docs.js
+++ b/docs/web/site/docs.js
@@ -4,8 +4,7 @@
 // Copyright 2021 Anton Bachin *)
 
 
-
-console.log("foo");
+/* Scrolling */
 
 function current_section() {
   var threshold = window.innerHeight / 2;
@@ -49,3 +48,36 @@ function scroll() {
 };
 
 window.onscroll = scroll;
+
+
+/* Theme mode */
+
+var THEME_MODE_KEY = "dream-theme" 
+
+function apply_theme(theme) {
+  if (theme === "light") {
+    document.body.setAttribute("data-theme", "light");
+  } else {
+    document.body.removeAttribute("data-theme");
+  }
+}
+
+function toggle_theme() {
+  var current_theme = localStorage.getItem(THEME_MODE_KEY);
+  var new_theme = current_theme === "dark" ? "light" : "dark";
+  localStorage.setItem(THEME_MODE_KEY, new_theme);
+  apply_theme(new_theme);
+}
+
+function init_theme() {
+  var default_theme = "dark";
+  var stored_theme = localStorage.getItem(THEME_MODE_KEY) || default_theme;
+  apply_theme(stored_theme);
+
+  var theme_toggle_button = document.querySelector(".toggle-theme-btn");
+  if (theme_toggle_button) {
+    theme_toggle_button.addEventListener("click", toggle_theme);
+  }
+}
+
+document.addEventListener("DOMContentLoaded", init_theme);
diff --git a/docs/web/templates/index.html b/docs/web/templates/index.html
index 5322df37..0fb0300c 100644
--- a/docs/web/templates/index.html
+++ b/docs/web/templates/index.html
@@ -37,6 +37,10 @@ <h6>Tidy Web framework for OCaml and ReasonML</h6>
       <li><a target="_blank" rel="noreferrer noopener" href="https://github.com/aantron/dream">GitHub</a></li>
       <li><a target="_blank" rel="noreferrer noopener" href="https://github.com/aantron/dream/blob/master/src/dream.mli">Edit these docs</a></li>
     </ul>
+
+    <div class="toolbar">
+      <button class="toggle-theme-btn">&nbsp;</button>
+    </div>
   </div>
 
   <pre><span class="keyword">let</span> hello who =

From b55d1914cfacfa4eefdb1d291c4c06ffde1878fa Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 22 May 2023 16:06:00 +0300
Subject: [PATCH 286/312] Docs: initialize theme earlier to avoid flicker

Follow-on to #268.
---
 docs/web/site/docs.js         | 6 ++++--
 docs/web/templates/index.html | 4 ++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/docs/web/site/docs.js b/docs/web/site/docs.js
index 7dd4a374..369f6189 100644
--- a/docs/web/site/docs.js
+++ b/docs/web/site/docs.js
@@ -52,7 +52,7 @@ window.onscroll = scroll;
 
 /* Theme mode */
 
-var THEME_MODE_KEY = "dream-theme" 
+var THEME_MODE_KEY = "dream-theme"
 
 function apply_theme(theme) {
   if (theme === "light") {
@@ -73,11 +73,13 @@ function init_theme() {
   var default_theme = "dark";
   var stored_theme = localStorage.getItem(THEME_MODE_KEY) || default_theme;
   apply_theme(stored_theme);
+}
 
+function prepare_button() {
   var theme_toggle_button = document.querySelector(".toggle-theme-btn");
   if (theme_toggle_button) {
     theme_toggle_button.addEventListener("click", toggle_theme);
   }
 }
 
-document.addEventListener("DOMContentLoaded", init_theme);
+document.addEventListener("DOMContentLoaded", prepare_button);
diff --git a/docs/web/templates/index.html b/docs/web/templates/index.html
index 0fb0300c..61784f2d 100644
--- a/docs/web/templates/index.html
+++ b/docs/web/templates/index.html
@@ -24,6 +24,10 @@
 </head>
 <body class="index">
 
+<script>
+init_theme();
+</script>
+
 <header>
   <div class="topmost">
     <div class="titles">

From 635c0589e93749d5358d3f42577e816053c27ab6 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 22 May 2023 16:14:19 +0300
Subject: [PATCH 287/312] Get the Windows CI working (#282)

The syntax of the constraint is based on a suggestion in Discord.

Tests are disabled due to a difference in ppx_expect output on Windows.

Co-authored-by: Et7f3 <cadeaudeelie@gmail.com>
---
 .github/workflows/test.yml | 36 ++++++++++++++++++++++++++++++------
 dream.opam                 |  2 +-
 2 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a167c35e..9a53de3f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,8 +20,8 @@ jobs:
         include:
         - os: macos-latest
           ocaml: 4.12.x
-        # Windows is blocked until we no longer require libev; Dream still works
-        # on Windows, but testing it is awkward at the moment.
+        - os: windows-latest
+          ocaml: 4.14.x
 
     runs-on: ${{matrix.os}}
     steps:
@@ -30,16 +30,28 @@ jobs:
         submodules: recursive
 
     - uses: avsm/setup-ocaml@v2
+      if: runner.os != 'Windows'
       with:
         ocaml-compiler: ${{matrix.ocaml}}
 
+    - uses: avsm/setup-ocaml@v2
+      if: runner.os == 'Windows'
+      with:
+        ocaml-compiler: ${{matrix.ocaml}}
+        opam-repositories: |
+          opam-repository-mingw: https://github.com/ocaml-opam/opam-repository-mingw.git#sunset
+          default: https://github.com/ocaml/opam-repository.git
+
+    - run: opam depext --yes conf-sqlite3
     - run: opam depext --yes conf-postgresql
     - run: opam depext --yes conf-libev
+      if: runner.os != 'Windows'
 
     # The tests require ppx_expect. The latest versions of it introduced changes
     # in the formatting of the output, and also require OCaml >= 4.10, which
     # makes testing on < 4.10 awkward. So, we skip tests on < 4.10.
-    - run: |
+    - shell: bash
+      run: |
         set -e
         set -x
 
@@ -49,11 +61,23 @@ jobs:
           4.08.x) WITH_TEST=;;
         esac
 
-        opam install --yes --deps-only $WITH_TEST ./dream-pure.opam ./dream-httpaf.opam ./dream.opam
+        # Tests on Windows are disabled because of a difference in ppx_expect
+        # output. See https://github.com/aantron/dream/pull/282.
+        case ${{runner.os}} in
+          Windows) WITH_TEST=;;
+        esac
+
+        OPAM=$(which opam || true)
+        if [ -z "$OPAM" ]
+        then
+          OPAM=D:\\cygwin\\wrapperbin\\opam.cmd
+        fi
+
+        $OPAM install --yes --deps-only $WITH_TEST ./dream-pure.opam ./dream-httpaf.opam ./dream.opam
 
         if [ ! -z "$WITH_TEST" ]
         then
-          opam exec -- dune runtest
+          $OPAM exec -- dune runtest
 
           EXAMPLES=$(find example -maxdepth 1 -type d -not -name "w-mirage*" -not -name "r-tyxml" | grep -v "^example/0" | grep -v "^example$" | sort)
           shopt -s nullglob
@@ -63,7 +87,7 @@ jobs:
             FILE=$(ls $EXAMPLE/*.ml $EXAMPLE/*.re $EXAMPLE/server/*.ml $EXAMPLE/server/*.re)
             EXE=$(echo $FILE | sed 's/\..*$/.exe/g')
             echo dune build $EXE
-            opam exec -- dune build $EXE
+            $OPAM exec -- dune build $EXE
           done
         fi
 
diff --git a/dream.opam b/dream.opam
index 07e14a0b..09f19845 100644
--- a/dream.opam
+++ b/dream.opam
@@ -52,7 +52,7 @@ depends: [
   "camlp-streams"
   "caqti" {>= "1.8.0"}  # Infix operators.
   "caqti-lwt"
-  "conf-libev" {os != "win32"}
+  ("conf-libev" {os != "win32"} | "ocaml" {os = "win32"})
   "cstruct" {>= "6.0.0"}
   "dream-httpaf" {>= "1.0.0~alpha2"}
   "dream-pure" {>= "1.0.0~alpha2"}

From 7b46896bf9f9ac7851234d4f3b7e82f8195da671 Mon Sep 17 00:00:00 2001
From: Thibaut Mattio <thibaut.mattio@gmail.com>
Date: Sat, 13 May 2023 19:44:31 +0200
Subject: [PATCH 288/312] Add a `Dream.livereload` middleware

The code is adapted from dream-livereload, itself adapted from the w-live-reload example.
We update the w-live-reload to use the newly introduced middleware.

Apply nits
---
 dream.opam                           |  3 +-
 example/w-live-reload/README.md      | 84 +++----------------------
 example/w-live-reload/live_reload.ml | 67 +-------------------
 src/dream.ml                         |  2 +
 src/dream.mli                        | 11 ++++
 src/server/dune                      |  2 +
 src/server/livereload.ml             | 94 ++++++++++++++++++++++++++++
 7 files changed, 120 insertions(+), 143 deletions(-)
 create mode 100644 src/server/livereload.ml

diff --git a/dream.opam b/dream.opam
index 09f19845..7f8d641f 100644
--- a/dream.opam
+++ b/dream.opam
@@ -60,11 +60,13 @@ depends: [
   "fmt" {>= "0.8.7"}  # `Italic.
   "graphql_parser"
   "graphql-lwt"
+  "lambdasoup" {>= "0.6.1"}
   "lwt"
   "lwt_ppx" {>= "1.2.2"}
   "lwt_ssl"
   "logs" {>= "0.5.0"}
   "magic-mime"
+  "markup" {>= "1.0.2"}
   "mirage-clock" {>= "3.0.0"}  # now_d_ps : unit -> int * int64.
   "mirage-crypto" {>= "0.8.1"}  # AES-256-GCM.
   "mirage-crypto-rng"
@@ -85,7 +87,6 @@ depends: [
   "crunch" {with-test}
   "js_of_ocaml" {with-test}
   "js_of_ocaml-ppx" {with-test}
-  "lambdasoup" {with-test}
   "ppx_expect" {with-test & >= "v0.15.0"}  # Formatting changes.
   "ppx_yojson_conv" {with-test}
   "reason" {with-test}
diff --git a/example/w-live-reload/README.md b/example/w-live-reload/README.md
index 0e66c545..d9d9600d 100644
--- a/example/w-live-reload/README.md
+++ b/example/w-live-reload/README.md
@@ -2,83 +2,20 @@
 
 <br>
 
-This example shows a simple live reloading setup. It works by injecting a script
-into the `<head>` of HTML documents. The script opens a WebSocket back to the
-server. If the WebSocket gets closed, the script tries to reconnect. When the
-server comes back up, the client is able to reconnect, and reloads itself.
+This example shows a simple live reloading setup using the `Dream.livereload`
+middleware. It works by injecting a script into the `<head>` of HTML documents.
+The script opens a WebSocket back to the server. If the WebSocket gets closed,
+the script tries to reconnect. When the server comes back up, the client is able
+to reconnect and reloads itself.
 
-```js
-var socketUrl = "ws://" + location.host + "/_live-reload"
-var socket = new WebSocket(socketUrl);
-
-socket.onclose = function(event) {
-  const intervalMs = 100;
-  const attempts = 100;
-  let attempt = 0;
-
-  function reload() {
-    ++attempt;
-
-    if(attempt > attempts) {
-      console.error("Could not reconnect to server");
-      return;
-    }
-
-    reconnectSocket = new WebSocket(socketUrl);
-
-    reconnectSocket.onerror = function(event) {
-      setTimeout(reload, intervalMs);
-    };
-
-    reconnectSocket.onopen = function(event) {
-      location.reload();
-    };
-  };
-
-  reload();
-};
-```
-
-The injection is done by a small middleware:
-
-```ocaml
-
-let inject_live_reload_script inner_handler request =
-  let%lwt response = inner_handler request in
-
-  match Dream.header "Content-Type" response with
-  | Some "text/html; charset=utf-8" ->
-    let%lwt body = Dream.body response in
-    let soup =
-      Markup.string body
-      |> Markup.parse_html ~context:`Document
-      |> Markup.signals
-      |> Soup.from_signals
-    in
-
-    begin match Soup.Infix.(soup $? "head") with
-    | None ->
-      Lwt.return response
-    | Some head ->
-      Soup.create_element "script" ~inner_text:live_reload_script
-      |> Soup.append_child head;
-      response
-      |> Dream.with_body (Soup.to_string soup)
-      |> Lwt.return
-    end
-
-  | _ ->
-    Lwt.return response
-```
-
-The example server just wraps a single page at `/` with the middleware. The page
+The example server just wraps a single page at `/` with the `Dream.livereload` middleware. The page
 displays a tag that changes each time it is loaded:
 
 ```ocaml
 let () =
   Dream.run
   @@ Dream.logger
-  @@ inject_live_reload_script
+  @@ Dream.livereload
   @@ Dream.router [
 
     Dream.get "/" (fun _ ->
@@ -87,11 +24,6 @@ let () =
       |> Printf.sprintf "Good morning, world! Random tag: %s"
       |> Dream.html);
 
-    Dream.get "/_live-reload" (fun _ ->
-      Dream.websocket (fun socket ->
-        let%lwt _ = Dream.receive socket in
-        Dream.close_websocket socket));
-
   ]
 ```
 
@@ -129,7 +61,7 @@ changes.
 **See also:**
 
 - [**`k-websocket`**](../k-websocket#files) introduces WebSockets.
-- [**`w-fswatch`**](../w-fswatch#files) rebuilds and restarts a server each
+- [**`w-watch`**](../w-watch#files) rebuilds and restarts a server each
   time its source code changes.
 
 <br>
diff --git a/example/w-live-reload/live_reload.ml b/example/w-live-reload/live_reload.ml
index 999c53b3..5b5d7098 100644
--- a/example/w-live-reload/live_reload.ml
+++ b/example/w-live-reload/live_reload.ml
@@ -1,67 +1,7 @@
-let live_reload_script = {js|
-
-var socketUrl = "ws://" + location.host + "/_live-reload"
-var socket = new WebSocket(socketUrl);
-
-socket.onclose = function(event) {
-  const intervalMs = 100;
-  const attempts = 100;
-  let attempt = 0;
-
-  function reload() {
-    ++attempt;
-
-    if(attempt > attempts) {
-      console.error("Could not reconnect to server");
-      return;
-    }
-
-    reconnectSocket = new WebSocket(socketUrl);
-
-    reconnectSocket.onerror = function(event) {
-      setTimeout(reload, intervalMs);
-    };
-
-    reconnectSocket.onopen = function(event) {
-      location.reload();
-    };
-  };
-
-  reload();
-};
-
-|js}
-
-let inject_live_reload_script inner_handler request =
-  let%lwt response = inner_handler request in
-
-  match Dream.header response "Content-Type" with
-  | Some "text/html; charset=utf-8" ->
-    let%lwt body = Dream.body response in
-    let soup =
-      Markup.string body
-      |> Markup.parse_html ~context:`Document
-      |> Markup.signals
-      |> Soup.from_signals
-    in
-
-    begin match Soup.Infix.(soup $? "head") with
-    | None ->
-      Lwt.return response
-    | Some head ->
-      Soup.create_element "script" ~inner_text:live_reload_script
-      |> Soup.append_child head;
-      Dream.set_body response (Soup.to_string soup);
-      Lwt.return response
-    end
-
-  | _ ->
-    Lwt.return response
-
 let () =
   Dream.run
   @@ Dream.logger
-  @@ inject_live_reload_script
+  @@ Dream.livereload
   @@ Dream.router [
 
     Dream.get "/" (fun _ ->
@@ -70,9 +10,4 @@ let () =
       |> Printf.sprintf "Good morning, world! Random tag: %s"
       |> Dream.html);
 
-    Dream.get "/_live-reload" (fun _ ->
-      Dream.websocket (fun socket ->
-        let%lwt _ = Dream.receive socket in
-        Dream.close_websocket socket));
-
   ]
diff --git a/src/dream.ml b/src/dream.ml
index 7409ac00..a497fcd0 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -17,6 +17,7 @@ module Formats = Dream_pure.Formats
 module Graphql = Dream__graphql.Graphql
 module Helpers = Dream__server.Helpers
 module Http = Dream__http.Http
+module Livereload = Dream__server.Livereload
 module Message = Dream_pure.Message
 module Method = Dream_pure.Method
 module Origin_referrer_check = Dream__server.Origin_referrer_check
@@ -216,6 +217,7 @@ let csrf_tag = Tag.csrf_tag ~now
 
 let no_middleware = Message.no_middleware
 let pipeline = Message.pipeline
+let livereload = Livereload.livereload
 
 
 
diff --git a/src/dream.mli b/src/dream.mli
index d78666ac..2380c58f 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1304,6 +1304,17 @@ val no_middleware : middleware
         Dream.no_middleware
     ]} *)
 
+val livereload : ?script:string -> ?path:string -> middleware
+(** Adds live reloading to your Dream application.
+
+    It works by injecting a script in the HTML pages sent to clients that will
+    initiate a WebSocket.
+
+    When the server restarts, the WebSocket connection is lost, at which point,
+    the client will try to reconnect every 500ms for 5s. If within these 5s the
+    client is able to reconnect to the server, it will trigger a reload of the
+    page. *)
+
 val pipeline : middleware list -> middleware
 (** Combines a sequence of middlewares into one, such that these two lines are
     equivalent:
diff --git a/src/server/dune b/src/server/dune
index d7dd67b7..4e5125e6 100644
--- a/src/server/dune
+++ b/src/server/dune
@@ -6,9 +6,11 @@
   dream.cipher
   dream-pure
   fmt
+  lambdasoup
   logs
   lwt
   magic-mime
+  markup
   mirage-clock
   multipart_form
   multipart_form-lwt
diff --git a/src/server/livereload.ml b/src/server/livereload.ml
new file mode 100644
index 00000000..d6433f58
--- /dev/null
+++ b/src/server/livereload.ml
@@ -0,0 +1,94 @@
+(* This file is part of Dream, released under the MIT license. See LICENSE.md
+   for details, or visit https://github.com/aantron/dream.
+
+   Copyright 2021-2023 Thibaut Mattio, Anton Bachin *)
+
+
+
+module Message = Dream_pure.Message
+
+
+
+let default_script
+    ?(retry_interval_ms = 500) ?(max_retry_ms = 5000) ?(route = "/_livereload")
+    () =
+  Printf.sprintf
+    {js|
+var socketUrl = "ws://" + location.host + "%s";
+var s = new WebSocket(socketUrl);
+
+s.onopen = function(even) {
+  console.debug("Live reload: WebSocket connection open");
+};
+
+s.onclose = function(even) {
+  console.debug("Live reload: WebSocket connection closed");
+
+  var innerMs = %i;
+  var maxMs = %i;
+  var maxAttempts = Math.round(maxMs / innerMs);
+  var attempts = 0;
+
+  function reload() {
+    attempts++;
+    if(attempts > maxAttempts) {
+      console.debug("Live reload: Could not reconnect to dev server");
+      return;
+    }
+
+    s2 = new WebSocket(socketUrl);
+
+    s2.onerror = function(event) {
+      setTimeout(reload, innerMs);
+    };
+
+    s2.onopen = function(event) {
+      location.reload();
+    };
+  };
+
+  reload();
+};
+
+s.onerror = function(event) {
+  console.debug("Live reload: WebSocket error:", event);
+};
+|js}
+    route retry_interval_ms max_retry_ms
+
+
+
+let livereload
+    ?(script = default_script ()) ?(path = "/_livereload") next_handler
+    request =
+
+  match Message.target request with
+  | target when target = path ->
+    Helpers.websocket @@ fun socket ->
+    let%lwt _ = Helpers.receive socket in
+    Message.close_websocket socket
+
+  | _ ->
+    let%lwt response = next_handler request in
+    match Message.header response "Content-Type" with
+    | Some ("text/html" | "text/html; charset=utf-8") ->
+      let%lwt body = Message.body response in
+      let soup =
+        Markup.string body
+        |> Markup.parse_html ~context:`Document
+        |> Markup.signals
+        |> Soup.from_signals
+      in
+      begin match Soup.Infix.(soup $? "head") with
+      | None ->
+        Lwt.return response
+      | Some head ->
+        Soup.create_element "script" ~inner_text:script
+        |> Soup.append_child head;
+        soup
+        |> Soup.to_string
+        |> Message.set_body response;
+        Lwt.return response
+      end
+
+    | _ -> Lwt.return response

From 8e89f7cd2ab01168f06b0abca673d10fe6176b43 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 1 Jun 2023 16:29:50 +0300
Subject: [PATCH 289/312] Live reload: remove optional arguments

---
 src/dream.mli            |  2 +-
 src/server/livereload.ml | 22 ++++++++++++++--------
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 2380c58f..10852e98 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1304,7 +1304,7 @@ val no_middleware : middleware
         Dream.no_middleware
     ]} *)
 
-val livereload : ?script:string -> ?path:string -> middleware
+val livereload : middleware
 (** Adds live reloading to your Dream application.
 
     It works by injecting a script in the HTML pages sent to clients that will
diff --git a/src/server/livereload.ml b/src/server/livereload.ml
index d6433f58..113b1d1f 100644
--- a/src/server/livereload.ml
+++ b/src/server/livereload.ml
@@ -9,10 +9,18 @@ module Message = Dream_pure.Message
 
 
 
-let default_script
-    ?(retry_interval_ms = 500) ?(max_retry_ms = 5000) ?(route = "/_livereload")
-    () =
-  Printf.sprintf
+let route =
+  "/_livereload"
+
+let retry_interval_ms =
+  500
+
+let max_retry_ms =
+  5000
+
+
+
+let script = Printf.sprintf
     {js|
 var socketUrl = "ws://" + location.host + "%s";
 var s = new WebSocket(socketUrl);
@@ -58,12 +66,10 @@ s.onerror = function(event) {
 
 
 
-let livereload
-    ?(script = default_script ()) ?(path = "/_livereload") next_handler
-    request =
+let livereload next_handler request =
 
   match Message.target request with
-  | target when target = path ->
+  | target when target = route ->
     Helpers.websocket @@ fun socket ->
     let%lwt _ = Helpers.receive socket in
     Message.close_websocket socket

From 10ae36fa5fb5b08d70824edd00dccabe6c0826ab Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 1 Jun 2023 16:34:54 +0300
Subject: [PATCH 290/312] Live reload: retry indefinitely

---
 src/server/livereload.ml | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/src/server/livereload.ml b/src/server/livereload.ml
index 113b1d1f..399cfbb6 100644
--- a/src/server/livereload.ml
+++ b/src/server/livereload.ml
@@ -15,9 +15,6 @@ let route =
 let retry_interval_ms =
   500
 
-let max_retry_ms =
-  5000
-
 
 
 let script = Printf.sprintf
@@ -32,22 +29,13 @@ s.onopen = function(even) {
 s.onclose = function(even) {
   console.debug("Live reload: WebSocket connection closed");
 
-  var innerMs = %i;
-  var maxMs = %i;
-  var maxAttempts = Math.round(maxMs / innerMs);
-  var attempts = 0;
+  var retryIntervalMs = %i;
 
   function reload() {
-    attempts++;
-    if(attempts > maxAttempts) {
-      console.debug("Live reload: Could not reconnect to dev server");
-      return;
-    }
-
     s2 = new WebSocket(socketUrl);
 
     s2.onerror = function(event) {
-      setTimeout(reload, innerMs);
+      setTimeout(reload, retryIntervalMs);
     };
 
     s2.onopen = function(event) {
@@ -62,7 +50,7 @@ s.onerror = function(event) {
   console.debug("Live reload: WebSocket error:", event);
 };
 |js}
-    route retry_interval_ms max_retry_ms
+    route retry_interval_ms
 
 
 

From 1bf8e1115c1a3f303d232b257f4906e16188384d Mon Sep 17 00:00:00 2001
From: Thomas Coopman <thomas.coopman@gmail.com>
Date: Mon, 5 Jun 2023 14:08:32 +0200
Subject: [PATCH 291/312] Add STDOUT as output from dream_eml (#228)

Resolves #227.
---
 src/eml/eml.ml  |  4 ++--
 src/eml/main.ml | 10 ++++++++--
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/eml/eml.ml b/src/eml/eml.ml
index 64c714f3..864a079b 100644
--- a/src/eml/eml.ml
+++ b/src/eml/eml.ml
@@ -782,7 +782,7 @@ end
 
 
 
-let process_file (input_file, location, syntax) =
+let process_file (input_file, location, syntax, std_out) =
   let reason, extension = match syntax with
   | `OCaml -> (false, ".ml")
   | `Reason -> (true, ".re")
@@ -800,7 +800,7 @@ let process_file (input_file, location, syntax) =
   (* We don't bother closing these - the OCaml runtime and/or kernel will close
      it automatically on process exit, anyway. *)
   let input_channel = open_in input_file in
-  let output_channel = open_out output_file in
+  let output_channel = if std_out then stdout else open_out output_file in
 
   let input_stream = Location.stream (fun () ->
     try Some (input_char input_channel)
diff --git a/src/eml/main.ml b/src/eml/main.ml
index 7f11a3ac..e169e3e9 100644
--- a/src/eml/main.ml
+++ b/src/eml/main.ml
@@ -7,7 +7,7 @@
 
 module Command_line :
 sig
-  val parse : unit -> (string * string * [ `OCaml | `Reason ]) list
+  val parse : unit -> (string * string * [ `OCaml | `Reason ] * bool) list
 end =
 struct
   let usage = {|Usage:
@@ -24,6 +24,9 @@ struct
   let emit_reason =
     ref false
 
+  let std_out =
+    ref false
+
   let options = Arg.align [
     "--workspace",
     Arg.Set_string workspace_path,
@@ -31,6 +34,9 @@ struct
     "--emit-reason",
     Arg.Set emit_reason,
     " Emit Reason syntax after preprocessing the template";
+    "--stdout",
+    Arg.Set std_out,
+    " Print to STDOUT";
   ]
 
   let set_file file =
@@ -71,7 +77,7 @@ struct
         | ".re" -> `Reason
         | _ -> `OCaml
       in
-      file, Filename.concat prefix file, syntax)
+      file, Filename.concat prefix file, syntax, !std_out)
 end
 
 let () =

From 7a2c5a03ffb60e1fef7ea1f66ad304d518577ec4 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Thu, 22 Jun 2023 15:50:26 +0300
Subject: [PATCH 292/312] Add Dream.drop_session_field

Resolves #284.
---
 src/dream.ml          |  1 +
 src/dream.mli         |  3 +++
 src/server/session.ml | 20 ++++++++++++++++++++
 src/sql/session.ml    |  7 +++++++
 4 files changed, 31 insertions(+)

diff --git a/src/dream.ml b/src/dream.ml
index a497fcd0..07b9248a 100644
--- a/src/dream.ml
+++ b/src/dream.ml
@@ -256,6 +256,7 @@ let session = Session.session
 let session_field request name = session name request
 let put_session = Session.put_session
 let set_session_field request name value = put_session name value request
+let drop_session_field = Session.drop_session_field
 let all_session_values = Session.all_session_values
 let all_session_fields = all_session_values
 let invalidate_session = Session.invalidate_session
diff --git a/src/dream.mli b/src/dream.mli
index 10852e98..864a25c9 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1572,6 +1572,9 @@ val set_session_field : request -> string -> string -> unit promise
 (** Mutates a value in the request's session. The back end may commit the value
     to storage immediately, so this function returns a promise. *)
 
+val drop_session_field : request -> string -> unit promise
+(** Drops a field from the request's session. *)
+
 val all_session_fields : request -> (string * string) list
 (** Full session dictionary. *)
 
diff --git a/src/server/session.ml b/src/server/session.ml
index 57de3d74..24942545 100644
--- a/src/server/session.ml
+++ b/src/server/session.ml
@@ -57,6 +57,7 @@ type session = {
 
 type operations = {
   put : string -> string -> unit Lwt.t;
+  drop : string -> unit Lwt.t;
   invalidate : unit -> unit Lwt.t;
   mutable dirty : bool;
 }
@@ -127,6 +128,12 @@ struct
     |> fun dictionary -> session.payload <- dictionary;
     Lwt.return_unit
 
+  let drop session name =
+    session.payload
+    |> List.remove_assoc name
+    |> fun dictionary -> session.payload <- dictionary;
+    Lwt.return_unit
+
   let invalidate hash_table ~now lifetime operations session =
     Hashtbl.remove hash_table !session.id;
     session := create hash_table (now () +. lifetime);
@@ -137,6 +144,8 @@ struct
     let rec operations = {
       put =
         (fun name value -> put !session name value);
+      drop =
+        (fun name -> drop !session name);
       invalidate =
         (fun () -> invalidate ~now hash_table lifetime operations session);
       dirty;
@@ -216,6 +225,13 @@ struct
     operations.dirty <- true;
     Lwt.return_unit
 
+  let drop operations session name =
+    session.payload
+    |> List.remove_assoc name
+    |> fun dictionary -> session.payload <- dictionary;
+    operations.dirty <- true;
+    Lwt.return_unit
+
   let invalidate ~now lifetime operations session =
     session := create (now () +. lifetime);
     operations.dirty <- true;
@@ -224,6 +240,7 @@ struct
   let operations ~now lifetime session dirty =
     let rec operations = {
       put = (fun name value -> put operations !session name value);
+      drop = (fun name -> drop operations !session name);
       invalidate = (fun () -> invalidate ~now lifetime operations session);
       dirty;
     } in
@@ -337,6 +354,9 @@ let session name request =
 let put_session name value request =
   (fst (getter request)).put name value
 
+let drop_session_field request name =
+  (fst (getter request)).drop name
+
 let all_session_values request =
   !(snd (getter request)).payload
 
diff --git a/src/sql/session.ml b/src/sql/session.ml
index 28242e45..37a7b724 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -127,6 +127,12 @@ let put request (session : Session.session) name value =
   |> fun dictionary -> session.payload <- dictionary;
   Sql.sql request (fun db -> update db session)
 
+let drop request (session : Session.session) name =
+  session.payload
+  |> List.remove_assoc name
+  |> fun dictionary -> session.payload <- dictionary;
+  Sql.sql request (fun db -> update db session)
+
 let invalidate request lifetime operations (session : Session.session ref) =
   Sql.sql request begin fun db ->
     let%lwt () = remove db !session.id in
@@ -139,6 +145,7 @@ let invalidate request lifetime operations (session : Session.session ref) =
 let operations request lifetime (session : Session.session ref) dirty =
   let rec operations = {
     Session.put = (fun name value -> put request !session name value);
+    drop = (fun name -> drop request !session name);
     invalidate = (fun () -> invalidate request lifetime operations session);
     dirty;
   } in

From aada26ce5457b982cfada348127fa90f4667b51f Mon Sep 17 00:00:00 2001
From: Benjamin Thomas <benjamin.guy.thomas@gmail.com>
Date: Thu, 13 Jul 2023 13:33:17 +0200
Subject: [PATCH 293/312] CONTRIBUTING.md: fix bad remote URL (#288)

---
 docs/CONTRIBUTING.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
index c69268a9..36b89ca7 100644
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@@ -46,7 +46,7 @@ Later, you'll need to fork the repository on GitHub, and add your fork as a
 remote:
 
 ```
-git remote add fork git@github.com/my-github-name/dream.git
+git remote add fork git@github.com:my-github-name/dream.git
 ```
 
 Install Dream's dependencies:

From 4a5310b09b8cc18fee0253b48a25f98ffa88b832 Mon Sep 17 00:00:00 2001
From: Benjamin Thomas <benjamin.guy.thomas@gmail.com>
Date: Fri, 14 Jul 2023 14:25:57 +0200
Subject: [PATCH 294/312] Fix JSON example broken by ppx_yojson_conv 0.16.0
 (#287)

---
 example/e-json/README.md | 2 ++
 example/e-json/json.ml   | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/example/e-json/README.md b/example/e-json/README.md
index 8857fc7d..b0eddddb 100644
--- a/example/e-json/README.md
+++ b/example/e-json/README.md
@@ -10,6 +10,8 @@ converter between JSON and an OCaml data type. We then create a little server
 that listens for JSON of the right shape, and echoes back its `message` field:
 
 ```ocaml
+open Ppx_yojson_conv_lib.Yojson_conv.Primitives
+
 type message_object = {
   message : string;
 } [@@deriving yojson]
diff --git a/example/e-json/json.ml b/example/e-json/json.ml
index 6fde9607..3d839bf6 100644
--- a/example/e-json/json.ml
+++ b/example/e-json/json.ml
@@ -1,3 +1,5 @@
+open Ppx_yojson_conv_lib.Yojson_conv.Primitives
+
 type message_object = {
   message : string;
 } [@@deriving yojson]

From 8140a600e4f9401e28f77fee3e4328abdc8246ef Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 14 Jul 2023 15:41:54 +0300
Subject: [PATCH 295/312] Advance vendored Gluten commit

Fixes #286 by including anmonteiro/gluten#58.
---
 src/vendor/gluten | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vendor/gluten b/src/vendor/gluten
index 388f3a28..22ccc110 160000
--- a/src/vendor/gluten
+++ b/src/vendor/gluten
@@ -1 +1 @@
-Subproject commit 388f3a285dd876aa6f993b34d8fc9c05a19a7a71
+Subproject commit 22ccc110dbe469d38c1363124cf10afd7766aab7

From 6e58736e28c8dfee3deff41364594cea7a39316e Mon Sep 17 00:00:00 2001
From: "Petter A. Urkedal" <paurkedal@gmail.com>
Date: Tue, 31 Oct 2023 15:20:40 +0100
Subject: [PATCH 296/312] Compatibility with Caqti 2.0.0 (#302)

---
 dream.opam                         | 4 ++--
 example/h-sql/sql.eml.ml           | 2 +-
 example/w-postgres/postgres.eml.ml | 2 +-
 src/sql/dune                       | 1 +
 src/sql/session.ml                 | 8 ++++----
 src/sql/sql.ml                     | 7 ++++---
 6 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/dream.opam b/dream.opam
index 7f8d641f..d2edf3f1 100644
--- a/dream.opam
+++ b/dream.opam
@@ -50,8 +50,8 @@ depends: [
   "base-unix"
   "bigarray-compat"
   "camlp-streams"
-  "caqti" {>= "1.8.0"}  # Infix operators.
-  "caqti-lwt"
+  "caqti" {>= "2.0.0"}
+  "caqti-lwt" {>= "2.0.0"}
   ("conf-libev" {os != "win32"} | "ocaml" {os = "win32"})
   "cstruct" {>= "6.0.0"}
   "dream-httpaf" {>= "1.0.0~alpha2"}
diff --git a/example/h-sql/sql.eml.ml b/example/h-sql/sql.eml.ml
index 619bae41..c542c4d8 100644
--- a/example/h-sql/sql.eml.ml
+++ b/example/h-sql/sql.eml.ml
@@ -4,7 +4,7 @@ module T = Caqti_type
 let list_comments =
   let query =
     let open Caqti_request.Infix in
-    (T.unit ->* T.(tup2 int string))
+    (T.unit ->* T.(t2 int string))
     "SELECT id, text FROM comment" in
   fun (module Db : DB) ->
     let%lwt comments_or_error = Db.collect_list query () in
diff --git a/example/w-postgres/postgres.eml.ml b/example/w-postgres/postgres.eml.ml
index 7c9e844e..0494c4ab 100644
--- a/example/w-postgres/postgres.eml.ml
+++ b/example/w-postgres/postgres.eml.ml
@@ -5,7 +5,7 @@ module T = Caqti_type
 let list_comments =
   let query =
     let open Caqti_request.Infix in
-    (T.unit ->* T.(tup2 int string))
+    (T.unit ->* T.(t2 int string))
     "SELECT id, text FROM comment" in
   fun (module Db : DB) ->
     let%lwt comments_or_error = Db.collect_list query () in
diff --git a/src/sql/dune b/src/sql/dune
index e4244f42..e8bab617 100644
--- a/src/sql/dune
+++ b/src/sql/dune
@@ -4,6 +4,7 @@
  (libraries
   caqti
   caqti-lwt
+  caqti-lwt.unix
   dream.cipher
   dream-pure
   dream.server
diff --git a/src/sql/session.ml b/src/sql/session.ml
index 37a7b724..728fa48b 100644
--- a/src/sql/session.ml
+++ b/src/sql/session.ml
@@ -28,7 +28,7 @@ let serialize_payload payload =
 let insert =
   let query =
     let open Caqti_request.Infix in
-    (T.(tup4 string string float string) ->. T.unit) {|
+    (T.(t4 string string float string) ->. T.unit) {|
       INSERT INTO dream_session (id, label, expires_at, payload)
       VALUES ($1, $2, $3, $4)
     |} in
@@ -42,7 +42,7 @@ let insert =
 let find_opt =
   let query =
     let open Caqti_request.Infix in
-    (T.string ->? T.(tup3 string float string))
+    (T.string ->? T.(t3 string float string))
       "SELECT label, expires_at, payload FROM dream_session WHERE id = $1" in
 
   fun (module Db : DB) id ->
@@ -70,7 +70,7 @@ let find_opt =
 let refresh =
   let query =
     let open Caqti_request.Infix in
-    (T.(tup2 float string) ->. T.unit)
+    (T.(t2 float string) ->. T.unit)
       "UPDATE dream_session SET expires_at = $1 WHERE id = $2" in
 
   fun (module Db : DB) (session : Session.session) ->
@@ -80,7 +80,7 @@ let refresh =
 let update =
   let query =
     let open Caqti_request.Infix in
-    (T.(tup2 string string) ->. T.unit)
+    (T.(t2 string string) ->. T.unit)
       "UPDATE dream_session SET payload = $1 WHERE id = $2" in
 
   fun (module Db : DB) (session : Session.session) ->
diff --git a/src/sql/sql.ml b/src/sql/sql.ml
index a5f16c0d..e778fd30 100644
--- a/src/sql/sql.ml
+++ b/src/sql/sql.ml
@@ -14,7 +14,7 @@ let log =
   Log.sub_log "dream.sql"
 
 (* TODO Debug metadata for the pools. *)
-let pool_field : (_, Caqti_error.t) Caqti_lwt.Pool.t Message.field =
+let pool_field : (_, Caqti_error.t) Caqti_lwt_unix.Pool.t Message.field =
   Message.new_field ()
 
 (* TODO This may not be necessary since Caqti 1.8.0. May require some messing
@@ -48,7 +48,8 @@ let sql_pool ?size uri =
         "Dream.sql_pool: \
         'sqlite' is not a valid scheme; did you mean 'sqlite3'?");
     let pool =
-      Caqti_lwt.connect_pool ?max_size:size ~post_connect parsed_uri in
+      let pool_config = Caqti_pool_config.create ?max_size:size () in
+      Caqti_lwt_unix.connect_pool ~pool_config ~post_connect parsed_uri in
     match pool with
     | Ok pool ->
       pool_cell := Some pool;
@@ -72,7 +73,7 @@ let sql request callback =
     failwith message
   | Some pool ->
     let%lwt result =
-      pool |> Caqti_lwt.Pool.use (fun db ->
+      pool |> Caqti_lwt_unix.Pool.use (fun db ->
         (* The special exception handling is a workaround for
            https://github.com/paurkedal/ocaml-caqti/issues/68. *)
         match%lwt callback db with

From 60a0dc5df59a8b1eb65feccd3ee5801630b20ac5 Mon Sep 17 00:00:00 2001
From: Louis Pilfold <louis@lpil.uk>
Date: Tue, 31 Oct 2023 14:33:19 +0000
Subject: [PATCH 297/312] Fix typo (#292)

---
 src/dream.mli | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/dream.mli b/src/dream.mli
index 864a25c9..c7b2cf64 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2301,7 +2301,7 @@ val from_path : string -> string list
     - [Dream.from_path "a%2Fb"] becomes [["a/b"]].
     - [Dream.from_path "a//b"] becomes [["a"; "b"]].
 
-    This function is not for use on full targets, because they may incldue query
+    This function is not for use on full targets, because they may include query
     strings ([?]), and {!Dream.from_path} does not treat them specially. Split
     query strings off with {!Dream.split_target} first. *)
 

From f5c8ba0cff3a092ca3991383e9951be1e37055af Mon Sep 17 00:00:00 2001
From: Tim McGilchrist <timmcgil@gmail.com>
Date: Fri, 3 Nov 2023 00:27:16 +1100
Subject: [PATCH 298/312] Update dream-mirage (#283)

Mainly to provide csrf_tag rather than form_tag helper.
---
 dream-mirage.opam     |  2 +-
 src/mirage/mirage.ml  |  7 ------
 src/mirage/mirage.mli | 55 +++++++++++++++++--------------------------
 3 files changed, 23 insertions(+), 41 deletions(-)

diff --git a/dream-mirage.opam b/dream-mirage.opam
index 0c0e90f2..5ddbcc15 100644
--- a/dream-mirage.opam
+++ b/dream-mirage.opam
@@ -59,7 +59,7 @@ depends: [
   "letsencrypt" {>= "0.3.0"}
   "lwt"
   "lwt_ppx" {>= "1.2.2"}
-  "mimic"
+  "mimic" {>= "0.0.5"}
   "mirage-time"
   "rresult"
   "tcpip"
diff --git a/src/mirage/mirage.ml b/src/mirage/mirage.ml
index 6f5f5a09..86af0c20 100644
--- a/src/mirage/mirage.ml
+++ b/src/mirage/mirage.ml
@@ -343,13 +343,6 @@ module Make (Pclock : Mirage_clock.PCLOCK) (Time : Mirage_time.S) (Stack : Tcpip
   let verify_csrf_token = verify_csrf_token ~now
   let csrf_tag = Tag.csrf_tag ~now
 
-  (* Templates *)
-
-  let form_tag ?method_ ?target ?enctype ?csrf_token ~action request =
-    Tag.form_tag ~now ?method_ ?target ?enctype ?csrf_token ~action request
-
-
-
   (* Errors *)
 
   type error = Catch.error = {
diff --git a/src/mirage/mirage.mli b/src/mirage/mirage.mli
index 177860ed..99f8f31f 100644
--- a/src/mirage/mirage.mli
+++ b/src/mirage/mirage.mli
@@ -908,14 +908,15 @@ module Make
 
   (** {1 Forms}
 
-      {!Dream.form_tag} and {!Dream.val-form} round-trip secure forms.
-      {!Dream.form_tag} is used inside a template to generate a form header with a
-      CSRF token:
+      {!Dream.csrf_tag} and {!Dream.val-form} round-trip secure forms.
+      {!Dream.csrf_tag} is used inside a form template to generate a hidden field
+      with a CSRF token:
 
       {[
-        <%s! Dream.form_tag ~action:"/" request %>
-          <input name="my.field">
-        </form>
+      <form method="POST" action="/">
+      <%s! Dream.csrf_tag request %>
+      <input name="my.field">
+      </form>
       ]}
 
       {!Dream.val-form} recieves the form and checks the CSRF token:
@@ -953,13 +954,13 @@ module Make
 
   val form : ?csrf:bool -> request -> (string * string) list form_result promise
   (** Parses the request body as a form. Performs CSRF checks. Use
-      {!Dream.form_tag} in a template to transparently generate forms that will
+      {!Dream.csrf_tag} in a template to transparently generate forms that will
       pass these checks. See {!section-templates} and example
       {{:https://github.com/aantron/dream/tree/master/example/d-form#readme}
       [d-form]}.
 
       - [Content-Type:] must be [application/x-www-form-urlencoded].
-      - The form must have a field named [dream.csrf]. {!Dream.form_tag} adds such
+      - The form must have a field named [dream.csrf]. {!Dream.csrf_tag} adds such
         a field.
       - {!Dream.form} calls {!Dream.verify_csrf_token} to check the token in
         [dream.csrf].
@@ -1100,8 +1101,9 @@ module Make
 
       It's usually not necessary to handle CSRF tokens directly.
 
-      - Form tag generator {!Dream.form_tag} generates and inserts a CSRF token
-        that {!Dream.val-form} and {!Dream.val-multipart} transparently verify.
+      - CSRF token field generator {!Dream.csrf_tag} generates and inserts a CSRF
+        token that {!Dream.val-form} and {!Dream.val-multipart} transparently
+        verify.
       - AJAX can be protected from CSRF by {!Dream.origin_referrer_check}.
 
       CSRF functions are exposed for creating custom schemes, and for
@@ -1136,8 +1138,6 @@ module Make
   val verify_csrf_token : request -> string -> csrf_result promise
   (** Checks that the CSRF token is valid for the {!type-request}'s session. *)
 
-  val csrf_tag : request -> string
-
   (** {1 Templates}
 
       Dream includes a template preprocessor that allows interleaving OCaml and
@@ -1223,20 +1223,13 @@ module Make
       unquoted attribute values, CSS in [<style>] tags, or literal JavaScript in
       [<script>] tags. *)
 
-  val form_tag :
-    ?method_:[< method_] ->
-    ?target:string ->
-    ?enctype:[< `Multipart_form_data] ->
-    ?csrf_token:bool ->
-    action:string ->
-    request ->
-    string
-  (** Generates a [<form>] tag and an [<input>] tag with a CSRF token, suitable
-      for use with {!Dream.val-form} and {!Dream.val-multipart}. For example, in
-      a template,
+  val csrf_tag : request -> string
+  (** Generates an [<input>] tag with a CSRF token, suitable for use with
+      {!Dream.val-form} and {!Dream.val-multipart}. For example, in a template,
 
       {[
-        <%s! Dream.form_tag ~action:"/" request %>
+        <form method="POST" action="/">
+          <%s! Dream.csrf_tag request %>
           <input name="my.field">
         </form>
       ]}
@@ -1245,19 +1238,15 @@ module Make
 
       {[
         <form method="POST" action="/">
-          <input name="dream.csrf" type="hidden" value="a-token">
+          <input name="dream.csrf" type="hidden" value="j8vjZ6...">
           <input name="my.field">
         </form>
       ]}
 
-      [~method] sets the method used to submit the form. The default is [`POST].
-
-      [~target] adds a [target] attribute. For example, [~target:"_blank"] causes
-      the browser to submit the form in a new tab or window.
-
-      Pass [~enctype:`Multipart_form_data] for a file upload form.
-
-      [~csrf_token:false] suppresses generation of the [dream.csrf] field. *)
+      It is
+      {{:https://portswigger.net/web-security/csrf/tokens#how-should-csrf-tokens-be-transmitted}
+      recommended} to put the CSRF tag immediately after the starting [<form>]
+      tag, to prevent certain kinds of DOM manipulation-based attacks. *)
 
   (** {1 Middleware}
 

From 1c60e60f1799a8308e12dc955781f043a5e2a45e Mon Sep 17 00:00:00 2001
From: Pedro Dias <50634340+pedrofgd@users.noreply.github.com>
Date: Thu, 2 Nov 2023 10:36:41 -0300
Subject: [PATCH 299/312] example/z-docker-opam: update alpine version (#300)

---
 example/z-docker-opam/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/example/z-docker-opam/Dockerfile b/example/z-docker-opam/Dockerfile
index c5dea626..09fd7b86 100644
--- a/example/z-docker-opam/Dockerfile
+++ b/example/z-docker-opam/Dockerfile
@@ -15,7 +15,7 @@ RUN opam exec -- dune build
 
 
 
-FROM alpine:3.12 as run
+FROM alpine:3.18.4 as run
 
 RUN apk add --update libev
 

From 9c72a39ef8ab622b47e34090b959ae580aa18b1a Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Mon, 6 Nov 2023 14:26:42 +0300
Subject: [PATCH 300/312] Log initialization: respect custom log levels

Fixes #299.
---
 src/server/log.ml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/server/log.ml b/src/server/log.ml
index b581fc5b..4718a281 100644
--- a/src/server/log.ml
+++ b/src/server/log.ml
@@ -435,6 +435,9 @@ struct
     if !enable then begin
       setup_outputs () ;
       Logs.set_level ~all:true (Some !level);
+      !custom_log_levels |> List.iter (fun (name, level) ->
+        List.assoc_opt name !sources
+        |> Option.iter (fun source -> Logs.Src.set_level source (Some level)));
       Logs.set_reporter (reporter ~now ())
     end ;
     `Initialized

From c86e49225eaf496b2a75f2a8cec9f0bfc69e0b2e Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 7 Nov 2023 18:37:35 +0300
Subject: [PATCH 301/312] Upgrade Gluten to 0.5

---
 dream-httpaf.opam | 1 -
 dream-mirage.opam | 1 +
 src/vendor/dune   | 1 -
 src/vendor/gluten | 2 +-
 4 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/dream-httpaf.opam b/dream-httpaf.opam
index 292bd829..ba8b4bf7 100644
--- a/dream-httpaf.opam
+++ b/dream-httpaf.opam
@@ -38,7 +38,6 @@ depends: [
   "digestif" {>= "0.7.2"}  # websocket/af, sha1, default implementation.
   "faraday" {>= "0.6.1"}
   "faraday-lwt-unix"
-  "ke" {>= "0.5"}  # Gluten.
   "lwt_ssl" {>= "1.2.0"}  # Gluten.
   "psq"  # h2.
   "result"  # websocket/af.
diff --git a/dream-mirage.opam b/dream-mirage.opam
index 5ddbcc15..7db4b607 100644
--- a/dream-mirage.opam
+++ b/dream-mirage.opam
@@ -56,6 +56,7 @@ depends: [
   "dune" {>= "2.7.0"}
   "duration"
   "emile" {>= "1.1"}
+  "ke" {>= "0.4"}  # paf.
   "letsencrypt" {>= "0.3.0"}
   "lwt"
   "lwt_ppx" {>= "1.2.2"}
diff --git a/src/vendor/dune b/src/vendor/dune
index 770e66e6..0b715165 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -9,7 +9,6 @@
   (libraries
    bigstringaf
    faraday
-   ke
   )))
 
 (subdir gluten/lwt
diff --git a/src/vendor/gluten b/src/vendor/gluten
index 22ccc110..59e630be 160000
--- a/src/vendor/gluten
+++ b/src/vendor/gluten
@@ -1 +1 @@
-Subproject commit 22ccc110dbe469d38c1363124cf10afd7766aab7
+Subproject commit 59e630be097c8c48c4bfaf3df28ca8f40d1a333f

From 51902fc63c9f848072ddcd9d807bc0a65ec241dd Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 7 Nov 2023 18:43:36 +0300
Subject: [PATCH 302/312] Pull in latest http/af fork commits

These commits do not affect the Dream code in any way.
---
 src/vendor/httpaf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vendor/httpaf b/src/vendor/httpaf
index e2d08003..94254931 160000
--- a/src/vendor/httpaf
+++ b/src/vendor/httpaf
@@ -1 +1 @@
-Subproject commit e2d080035a837d345182e0a66f46def18ac7bcdb
+Subproject commit 94254931d6e9efd4d304683ba7d1d4e001a506c5

From d802548914281234dd6942e8b630aff5f047deff Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 7 Nov 2023 18:50:20 +0300
Subject: [PATCH 303/312] Upgrade H2 to 0.11 and newest commits

---
 src/vendor/dune | 1 -
 src/vendor/h2   | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/vendor/dune b/src/vendor/dune
index 0b715165..a284ebdc 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -152,7 +152,6 @@
    dream-httpaf.dream-hpack
    dream-httpaf.dream-httpaf_
    psq
-   result
   )))
 
 (subdir h2/lwt
diff --git a/src/vendor/h2 b/src/vendor/h2
index 68669ef3..3ce5740e 160000
--- a/src/vendor/h2
+++ b/src/vendor/h2
@@ -1 +1 @@
-Subproject commit 68669ef33aa93ce37cd1ac39e82f918983c418d5
+Subproject commit 3ce5740ecf7c92c892d5d20684483935ebb5b2e8

From a3579218c27d4facea376a2cd3b94cc7785fe71f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 7 Nov 2023 18:58:19 +0300
Subject: [PATCH 304/312] Upgrade to latest websocket/af fork commits

---
 dream-httpaf.opam      | 1 -
 src/vendor/dune        | 1 -
 src/vendor/websocketaf | 2 +-
 3 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/dream-httpaf.opam b/dream-httpaf.opam
index ba8b4bf7..57afb7f1 100644
--- a/dream-httpaf.opam
+++ b/dream-httpaf.opam
@@ -40,7 +40,6 @@ depends: [
   "faraday-lwt-unix"
   "lwt_ssl" {>= "1.2.0"}  # Gluten.
   "psq"  # h2.
-  "result"  # websocket/af.
 ]
 
 build: [
diff --git a/src/vendor/dune b/src/vendor/dune
index a284ebdc..17aca4cf 100644
--- a/src/vendor/dune
+++ b/src/vendor/dune
@@ -89,7 +89,6 @@
    faraday
    dream-httpaf.dream-gluten
    dream-httpaf.dream-httpaf_
-   result
   )))
 
 (subdir websocketaf/lwt
diff --git a/src/vendor/websocketaf b/src/vendor/websocketaf
index 7530659c..aacd79aa 160000
--- a/src/vendor/websocketaf
+++ b/src/vendor/websocketaf
@@ -1 +1 @@
-Subproject commit 7530659c8a3fd1beed5197acde37dc7a20acd0af
+Subproject commit aacd79aafbb5b375b1514a76260adb48c1d70eb8

From 8cb51f18ee3bdf3ab1a16913a4910b7d6c9b4724 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Tue, 7 Nov 2023 21:06:02 +0300
Subject: [PATCH 305/312] Document Dream.form ~csrf:false

---
 src/dream.mli | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/dream.mli b/src/dream.mli
index c7b2cf64..17ce5f34 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -1000,6 +1000,8 @@ val form : ?csrf:bool -> request -> (string * string) list form_result promise
     The call must be done under a session middleware, since each CSRF token is
     scoped to a session. See {!section-sessions}.
 
+    CSRF token checking can be bypassed by passing [~csrf:false].
+
     The returned form fields are sorted in alphabetical order for reliable
     pattern matching. This is because browsers can transmit the form fields in a
     different order from how they appear in the HTML:

From aaabf4dfe350c0d725d0a13c5ac7e97df39e4af9 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 10 Nov 2023 11:23:19 +0300
Subject: [PATCH 306/312] WebSocket: send ping and pong payloads

Since https://github.com/anmonteiro/websocketaf/issues/36 was fixed
recently, websocket/af supports sending ping and pong payloads, as
required by the WebSocket spec. This commit has dream-httpaf using that
support.

See also https://github.com/aantron/dream/issues/181.
---
 src/http/shared/websocket.ml | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/src/http/shared/websocket.ml b/src/http/shared/websocket.ml
index 358d5774..a6e5e288 100644
--- a/src/http/shared/websocket.ml
+++ b/src/http/shared/websocket.ml
@@ -204,32 +204,34 @@ let websocket_handler stream socket =
             outgoing_loop ()
         end)
       ~flush:(fun () -> flush ~close outgoing_loop)
-      ~ping:(fun _buffer _offset length ->
+      ~ping:(fun buffer offset length ->
         if length > 125 then
           raise (Failure "Ping payload cannot exceed 125 bytes");
-        (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
-        (* if length > 0 then
-          websocket_log.warning (fun log ->
-            log "Ping with non-empty payload not yet supported"); *)
         if !closed then
           close !close_code
         else begin
-          Websocketaf.Wsd.send_ping socket;
+          if length = 0 then
+            Websocketaf.Wsd.send_ping socket
+          else
+            Websocketaf.Wsd.send_ping
+              ~application_data:{Faraday.buffer; off = offset; len = length}
+              socket;
           outgoing_loop ()
         end)
-      ~pong:(fun _buffer _offset length ->
+      ~pong:(fun buffer offset length ->
         (* TODO Is there any way for the peer to send a ping payload with more
            than 125 bytes, forcing a too-large pong and an exception? *)
         if length > 125 then
           raise (Failure "Pong payload cannot exceed 125 bytes");
-        (* See https://github.com/anmonteiro/websocketaf/issues/36. *)
-        (* if length > 0 then
-          websocket_log.warning (fun log ->
-            log "Pong with non-empty payload not yet supported"); *)
         if !closed then
           close !close_code
         else begin
-          Websocketaf.Wsd.send_pong socket;
+          if length = 0 then
+            Websocketaf.Wsd.send_pong socket
+          else
+            Websocketaf.Wsd.send_pong
+              ~application_data:{Faraday.buffer; off = offset; len = length}
+              socket;
           outgoing_loop ()
         end)
       ~close

From a2cfbf49751b18adfcbc0682ba38044b3179435c Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 10 Nov 2023 20:54:40 +0300
Subject: [PATCH 307/312] WebSocket: allow non-FIN frames

Since https://github.com/anmonteiro/websocketaf/issues/33, websocket/af
supports sending frames without the FIN bit. Begin using this in Dream.

See also https://github.com/aantron/dream/issues/181.
---
 src/http/shared/websocket.ml | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/http/shared/websocket.ml b/src/http/shared/websocket.ml
index a6e5e288..c5737422 100644
--- a/src/http/shared/websocket.ml
+++ b/src/http/shared/websocket.ml
@@ -187,16 +187,13 @@ let websocket_handler stream socket =
   let rec outgoing_loop () =
     Stream.read
       stream
-      ~data:(fun buffer offset length binary _fin ->
-        (* Until https://github.com/anmonteiro/websocketaf/issues/33. *)
-        (* if not fin then
-          websocket_log.error (fun log ->
-            log "Non-FIN frames not yet supported"); *)
+      ~data:(fun buffer offset length binary fin ->
         let kind = if binary then `Binary else `Text in
         if !closed then
           close !close_code
         else begin
-          Websocketaf.Wsd.schedule socket ~kind buffer ~off:offset ~len:length;
+          Websocketaf.Wsd.schedule
+            socket ~is_fin:fin ~kind buffer ~off:offset ~len:length;
           bytes_since_flush := !bytes_since_flush + length;
           if !bytes_since_flush >= 4096 then
             flush ~close outgoing_loop

From 4c18ba84503f488ad49bdeaaecaf3be1d0b26bb5 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Fri, 10 Nov 2023 21:06:30 +0300
Subject: [PATCH 308/312] WebSocket: don't need client handlers value

Since https://github.com/anmonteiro/websocketaf/issues/39, an Obj.magic
cast from the server's WebSocket handlers to the client's is not longer
necessary.

See also https://github.com/aantron/dream/issues/181.
---
 src/http/shared/websocket.ml | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/src/http/shared/websocket.ml b/src/http/shared/websocket.ml
index c5737422..0f51d26e 100644
--- a/src/http/shared/websocket.ml
+++ b/src/http/shared/websocket.ml
@@ -237,10 +237,3 @@ let websocket_handler stream socket =
   outgoing_loop ();
 
   Websocketaf.Websocket_connection.{frame; eof}
-
-  (* TODO The equality between server and client input handlers is not
-     exposed in the websocketaf API.
-     https://github.com/anmonteiro/websocketaf/issues/39. *)
-let client_websocket_handler :
-    Stream.stream -> Websocketaf.Wsd.t ->
-      Websocketaf.Websocket_connection.input_handlers = websocket_handler

From 99388503ccd69272f596353f8d346f807858b40f Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 12 Nov 2023 18:25:39 +0300
Subject: [PATCH 309/312] EML: don't access internal Dream_pure module

Fixes #291.
---
 src/eml/eml.ml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/eml/eml.ml b/src/eml/eml.ml
index 864a079b..782d69b7 100644
--- a/src/eml/eml.ml
+++ b/src/eml/eml.ml
@@ -744,7 +744,7 @@ struct
 
         output.format ("%" ^ format);
         if needs_escape then
-          output.print "(Dream_pure.Formats.html_escape ";
+          output.print "(Dream.html_escape ";
         output.print "(\n";
 
         Printf.ksprintf output.print "#%i \"%s\"\n" (line + 1) location;

From 689eb2cff6141f06a4d8d44da754bdd155561c2a Mon Sep 17 00:00:00 2001
From: Thomas Gazagnaire <thomas@gazagnaire.org>
Date: Sun, 12 Nov 2023 16:58:46 +0100
Subject: [PATCH 310/312] Support for listening on Unix domain sockets (#219)

Resolves #218.
---
 src/dream.mli    |  2 ++
 src/http/http.ml | 38 ++++++++++++++++++++++++--------------
 2 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/src/dream.mli b/src/dream.mli
index 17ce5f34..a1fb5609 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2100,6 +2100,7 @@ val catch : (error -> response promise) -> middleware
 val run :
   ?interface:string ->
   ?port:int ->
+  ?socket_path:string ->
   ?stop:unit promise ->
   ?error_handler:error_handler ->
   ?tls:bool ->
@@ -2158,6 +2159,7 @@ val run :
 val serve :
   ?interface:string ->
   ?port:int ->
+  ?socket_path:string ->
   ?stop:unit promise ->
   ?error_handler:error_handler ->
   ?tls:bool ->
diff --git a/src/http/http.ml b/src/http/http.ml
index 2deb1dbf..c0fc1562 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -399,13 +399,11 @@ let built_in_middleware error_handler =
     Catch.catch (Error_handler.app error_handler);
   ]
 
-
-
 let serve_with_details
     caller_function_for_error_messages
     tls_library
     ~interface
-    ~port
+    ~network
     ~stop
     ~error_handler
     ~certificate_file
@@ -461,14 +459,19 @@ let serve_with_details
 
   (* Look up the low-level address corresponding to the interface. Hopefully,
      this is a local interface. *)
+  let%lwt listen_address =
+    match network with
+    | `Unix path ->
+      Lwt.return (Lwt_unix.ADDR_UNIX path)
+    | `Inet port ->
   let%lwt addresses = Lwt_unix.getaddrinfo interface (string_of_int port) [] in
   match addresses with
   | [] ->
     Printf.ksprintf failwith "Dream.%s: no interface with address %s"
       caller_function_for_error_messages interface
   | address::_ ->
-  let listen_address = Lwt_unix.(address.ai_addr) in
-
+  Lwt.return Lwt_unix.(address.ai_addr)
+  in
 
   (* Bring up the HTTP server. Wait for the server to actually get started.
      Then, wait for the ~stop promise. If the ~stop promise ever resolves, stop
@@ -489,7 +492,7 @@ let is_localhost interface =
 let serve_with_maybe_https
     caller_function_for_error_messages
     ~interface
-    ~port
+    ~network
     ~stop
     ~error_handler
     ~tls
@@ -515,7 +518,7 @@ let serve_with_maybe_https
         caller_function_for_error_messages
         no_tls
         ~interface
-        ~port
+        ~network
         ~stop
         ~error_handler
         ~certificate_file:""
@@ -580,7 +583,7 @@ let serve_with_maybe_https
           caller_function_for_error_messages
           tls_library
           ~interface
-          ~port
+          ~network
           ~stop
           ~error_handler
           ~certificate_file
@@ -608,7 +611,7 @@ let serve_with_maybe_https
           caller_function_for_error_messages
           tls_library
           ~interface
-          ~port
+          ~network
           ~stop
           ~error_handler
           ~certificate_file
@@ -634,11 +637,15 @@ let default_interface = "localhost"
 let default_port = 8080
 let never = fst (Lwt.wait ())
 
-
+let network ~port ~socket_path =
+  match socket_path with
+  | None -> `Inet port
+  | Some path -> `Unix path
 
 let serve
     ?(interface = default_interface)
     ?(port = default_port)
+    ?socket_path
     ?(stop = never)
     ?(error_handler = Error_handler.default)
     ?(tls = false)
@@ -650,7 +657,7 @@ let serve
   serve_with_maybe_https
     "serve"
     ~interface
-    ~port
+    ~network:(network ~port ~socket_path)
     ~stop
     ~error_handler
     ~tls:(if tls then `OpenSSL else `No)
@@ -666,6 +673,7 @@ let serve
 let run
     ?(interface = default_interface)
     ?(port = default_port)
+    ?socket_path
     ?(stop = never)
     ?(error_handler = Error_handler.default)
     ?(tls = false)
@@ -728,8 +736,10 @@ let run
         "http"
     in
 
-    begin match interface with
-    | "localhost" | "127.0.0.1" ->
+    begin match interface, socket_path with
+    | _, Some path ->
+      log "Running on %s" path
+    | ("localhost" | "127.0.0.1"), None ->
       log "Running at %s://localhost:%i" scheme port
     | _ ->
       log "Running on %s:%i (%s://localhost:%i)" interface port scheme port
@@ -742,7 +752,7 @@ let run
       serve_with_maybe_https
         "run"
         ~interface
-        ~port
+        ~network:(network ~port ~socket_path)
         ~stop
         ~error_handler
         ~tls:(if tls then `OpenSSL else `No)

From cb600706332df7cf06db8ea5961636784361ced6 Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 12 Nov 2023 19:01:05 +0300
Subject: [PATCH 311/312] Adjust whitespace after preceding commit

---
 src/http/http.ml | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/http/http.ml b/src/http/http.ml
index c0fc1562..7b77bc41 100644
--- a/src/http/http.ml
+++ b/src/http/http.ml
@@ -464,13 +464,14 @@ let serve_with_details
     | `Unix path ->
       Lwt.return (Lwt_unix.ADDR_UNIX path)
     | `Inet port ->
-  let%lwt addresses = Lwt_unix.getaddrinfo interface (string_of_int port) [] in
-  match addresses with
-  | [] ->
-    Printf.ksprintf failwith "Dream.%s: no interface with address %s"
-      caller_function_for_error_messages interface
-  | address::_ ->
-  Lwt.return Lwt_unix.(address.ai_addr)
+      let%lwt addresses =
+        Lwt_unix.getaddrinfo interface (string_of_int port) [] in
+      match addresses with
+      | [] ->
+        Printf.ksprintf failwith "Dream.%s: no interface with address %s"
+          caller_function_for_error_messages interface
+      | address::_ ->
+        Lwt.return Lwt_unix.(address.ai_addr)
   in
 
   (* Bring up the HTTP server. Wait for the server to actually get started.

From 78cf84aee8cbc6a94d0bda87a9ec6e6de3182f2b Mon Sep 17 00:00:00 2001
From: Anton Bachin <antonbachin@yahoo.com>
Date: Sun, 12 Nov 2023 19:01:59 +0300
Subject: [PATCH 312/312] Document Dream.run ?socket_path

---
 src/dream.mli | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/dream.mli b/src/dream.mli
index a1fb5609..d9b5e482 100644
--- a/src/dream.mli
+++ b/src/dream.mli
@@ -2120,6 +2120,8 @@ val run :
     - [~interface] is the network interface to listen on. Defaults to
       ["localhost"]. Use ["0.0.0.0"] to listen on all interfaces.
     - [~port] is the port to listen on. Defaults to [8080].
+    - If [~socket_path] is specified, Dream will listen on a Unix domain socket
+      at the given path, and ignore [~interface] and [~port].
     - [~stop] is a promise that causes the server to stop accepting new
       requests, and {!Dream.run} to return. Requests that have already entered
       the Web application continue to be processed. The default value is a