From 245de319a606fe84506395fa9320a33e97aa1a63 Mon Sep 17 00:00:00 2001
From: Aaron Duke <aaron@0ptimus.com>
Date: Wed, 18 May 2016 14:02:15 -0700
Subject: [PATCH] Add support for python 3.5, replacing socketIO with SockJS
 and chuckyt for event-handling.

---
 circusweb/circushttpd.py         |  52 +++++---
 circusweb/client.py              |   6 +-
 circusweb/controller.py          |   7 +-
 circusweb/media/chuckt.js        | 201 +++++++++++++++++++++++++++++++
 circusweb/media/circus.js        | 107 +++++++++-------
 circusweb/media/sockjs.min.js    |   3 +
 circusweb/namespace.py           | 105 +++++++++-------
 circusweb/server.py              |   2 +-
 circusweb/session.py             |   5 +-
 circusweb/stats_client.py        |   8 +-
 circusweb/templates/base.html    |   4 +-
 circusweb/templates/index.html   |   3 +-
 circusweb/templates/sockets.html |   5 +-
 circusweb/templates/watcher.html |   6 +-
 circusweb/util.py                |   4 +-
 pip-requirements.txt             |   2 +-
 setup.py                         |   5 +-
 tox.ini                          |   2 +-
 18 files changed, 398 insertions(+), 129 deletions(-)
 create mode 100644 circusweb/media/chuckt.js
 create mode 100644 circusweb/media/sockjs.min.js

diff --git a/circusweb/circushttpd.py b/circusweb/circushttpd.py
index 24d354b..feab9fa 100644
--- a/circusweb/circushttpd.py
+++ b/circusweb/circushttpd.py
@@ -1,14 +1,15 @@
-from __future__ import print_function
+from __future__ import print_function, unicode_literals
 
 import argparse
 import os
 import os.path
 import sys
 import json
-from base64 import b64encode, b64decode
+from base64 import b64encode as _b64encode
+from base64 import b64decode as _b64decode
 from zmq.eventloop import ioloop
 import socket
-
+from six import string_types, iteritems
 # Install zmq.eventloop to replace tornado.ioloop
 ioloop.install()
 
@@ -22,7 +23,7 @@
     from tornado.options import define, options  # NOQA
     from tornado.web import URLSpec
 
-    import tornadio2
+    from sockjs.tornado import SockJSRouter
 
     from mako import exceptions
     from tomako import MakoTemplateLoader
@@ -37,7 +38,7 @@
 from circus.exc import CallError
 from circus.util import configure_logger, LOG_LEVELS
 
-from circusweb.namespace import SocketIOConnection
+from circusweb.namespace import SocketConnection
 from circusweb import __version__, logger
 from circusweb.util import (run_command, AutoDiscovery)
 from circusweb.session import (
@@ -60,18 +61,39 @@
 }
 
 
-def require_logged_user(func):
+def b64encode(s):
+    return _b64encode(s.encode('ascii'))
+
+
+def b64decode(s):
+    return _b64decode(s).decode('utf-8')
+
+
+def _decode(e):
+    try:
+        e = e.decode('utf-8')
+    except AttributeError:
+        pass
+    return e
+
 
+def jsonify_list(s):
+    try:
+        s = s.decode('utf-8')
+    except AttributeError:
+        if not isinstance(s, string_types):
+            s = [_decode(e) for e in s]
+    return json.dumps(s)
+
+
+def require_logged_user(func):
     @wraps(func)
     def wrapped(self, *args, **kwargs):
         controller = get_controller()
-
         if not self.session.connected or not controller:
             self.clean_user_session()
             return self.redirect(self.application.reverse_url('connect'))
-
         return func(self, *args, **kwargs)
-
     return wrapped
 
 
@@ -99,7 +121,7 @@ def render_template(self, template_path, **data):
         namespace.update({'controller': get_controller(),
                           'version': __version__,
                           'b64encode': b64encode,
-                          'dumps': json.dumps,
+                          'dumps': jsonify_list,
                           'session': self.session, 'messages': messages,
                           'SERVER': server})
 
@@ -186,7 +208,6 @@ def post(self):
         for endpoint in endpoints_list:
             if endpoint not in endpoints:
                 self.session.endpoints.remove(endpoint)
-
         self.redirect(self.reverse_url('index'))
 
 
@@ -207,11 +228,10 @@ class WatcherAddHandler(BaseHandler):
     def post(self, endpoint):
         url = yield self.run_command(
             'add_watcher',
-            kwargs=dict((k, v[0]) for k, v in
-                        self.request.arguments.iteritems()),
+            kwargs=dict((k, v[0]) for k, v in iteritems(self.request.arguments)),
             message='added a new watcher', endpoint=b64decode(endpoint),
-            redirect_url=self.reverse_url('watcher',
-                                          self.get_argument('name').lower()),
+            redirect_url=self.reverse_url(
+                'watcher', self.get_argument('name').lower()),
             redirect_on_error=self.reverse_url('index'))
         self.redirect(url)
 
@@ -364,7 +384,7 @@ def __init__(self):
         ]
 
         self.loader = MakoTemplateLoader(TMPLDIR)
-        self.router = tornadio2.TornadioRouter(SocketIOConnection)
+        self.router = SockJSRouter(SocketConnection)
         handlers += self.router.urls
 
         settings = {
diff --git a/circusweb/client.py b/circusweb/client.py
index 28dc2b8..2ca2a1f 100644
--- a/circusweb/client.py
+++ b/circusweb/client.py
@@ -1,4 +1,6 @@
 # -*- coding: utf-8 -
+from __future__ import unicode_literals
+
 import uuid
 
 import zmq
@@ -59,7 +61,7 @@ def call(self, cmd, callback):
                 raise CallError(str(e))
 
         socket = self.context.socket(zmq.DEALER)
-        socket.setsockopt(zmq.IDENTITY, uuid.uuid4().hex)
+        socket.setsockopt_string(zmq.IDENTITY, uuid.uuid4().hex)
         socket.setsockopt(zmq.LINGER, 0)
         get_connection(socket, self.endpoint, self.ssh_server,
                        self.ssh_keyfile)
@@ -84,7 +86,7 @@ def recv_callback(msg):
             stream.on_recv(recv_callback)
 
         try:
-            socket.send(cmd)
+            socket.send_string(cmd)
         except zmq.ZMQError as e:
             raise CallError(str(e))
 
diff --git a/circusweb/controller.py b/circusweb/controller.py
index 37a5973..da94e77 100644
--- a/circusweb/controller.py
+++ b/circusweb/controller.py
@@ -1,7 +1,9 @@
+from __future__ import unicode_literals
+
 from circus.commands import get_commands
 from circusweb.client import AsynchronousCircusClient
 from circusweb.stats_client import AsynchronousStatsConsumer
-from circusweb.namespace import SocketIOConnection
+from circusweb.namespace import SocketConnection
 
 from tornado import gen
 
@@ -43,9 +45,8 @@ def connect_to_stats_endpoint(self, stats_endpoint):
 
         stats_client = AsynchronousStatsConsumer(
             ['stat.'], self.loop,
-            SocketIOConnection.consume_stats, endpoint=stats_endpoint,
+            SocketConnection.consume_stats, endpoint=stats_endpoint,
             ssh_server=self.ssh_server)
-
         stats_client.count += 1
         self.stats_clients[stats_endpoint] = stats_client
 
diff --git a/circusweb/media/chuckt.js b/circusweb/media/chuckt.js
new file mode 100644
index 0000000..3ca5298
--- /dev/null
+++ b/circusweb/media/chuckt.js
@@ -0,0 +1,201 @@
+/**
+ * License: MIT
+ * @see https://github.com/epixa/chuckt/blob/master/LICENSE.md
+ * @version 0.2.0
+ */
+
+window.epixa || (window.epixa = {});
+
+(function(){
+  /**
+   * Convenience method for applying chuckt event functionality to a socket
+   *
+   * IMPORTANT NOTE: Using this method will override any existing onmessage
+   * callback on the given socket, so this should only be used if the only
+   * messages you expect to receive through the socket are generated by a
+   * chuckt server implementation.
+   *
+   * @param socket
+   */
+  epixa.chucktify = function(socket) {
+    var chuckt = new ChuckT(socket);
+    socket.onmessage = function(e) {
+      chuckt.process(e.data);
+    };
+    return chuckt;
+  };
+
+  /**
+   * Enables ChuckT event functionality on the given socket
+   *
+   * In terms of receiving responses from the backend, no assumptions are made.
+   * Since the websocket API currently only supports a single onmessage
+   * callback, the ChuckT client app is responsible for calling chuck.process()
+   * when a message is received from the backend. Messages do not have to be
+   * pre-filtered -- if chuckt.process() is called on a non-chuckt message, it
+   * will simply be ignored.
+   *
+   * The only hard requirement of the given socket is that it implements a
+   * send() method that takes in a single message string. It is assumed, but
+   * not required, that the send() method will transport the encoded message to
+   * the backend.
+   *
+   * @constructor
+   */
+  var ChuckT = epixa.ChuckT = function(socket) {
+    this.socket = socket;
+    this.callbacks = new Callbacks();
+    this.listeners = {};
+  };
+
+  /**
+   * Emits an event that proxies through the socket connection
+   *
+   * In addition to the name of the event to fire, you can pass any number of
+   * arguments and they will be sent along with the event.
+   *
+   * If the last argument passed is a function, then it is registered as a
+   * callback and is invoked whenever receipt is acknowledged on the backend.
+   *
+   * Usage:
+   *  chuckt.emit('my-event', 'foo', 'bar');
+   *  sends: {"chuckt":{"event":"my-event","args":["foo","bar"]}}
+   *
+   *  chuckt.emit('my-event', 'foo', console.log);
+   *  sends: {"chuckt":{"event":"my-event","args":["foo","bar"],"callbackid":0}}
+   *     and console.log() is called if the backend returns a callback response
+   *
+   * @param event
+   */
+  ChuckT.prototype.emit = function(event) {
+    var data = { event: event };
+    var args = Array.prototype.slice.call(arguments).slice(1);
+
+    if (args.length > 0 && typeof args[args.length - 1] == 'function') {
+      var callback = args.pop();
+      data.callbackid = this.callbacks.register(callback);
+    }
+
+    if (args.length > 0) {
+      data.args = args;
+    }
+    this.socket.send(this.serialize(data));
+  };
+
+  /**
+   * Adds the given callback as a listener to the given event
+   *
+   * When an event is received from the backend, all of its listeners are fired
+   * in order. Any arguments passed with the event will be passed to each
+   * listener.
+   *
+   * @param event
+   * @param callback
+   */
+  ChuckT.prototype.on = function(event, callback) {
+    if (!this.listeners[event]) {
+      this.listeners[event] = [];
+    }
+    this.listeners[event].push(callback);
+  };
+
+  /**
+   * Removes event listeners
+   *
+   * If an event is specified, then only event listeners for that specific
+   * event will be removed. If no event is specified, then all listeners
+   * are removed.
+   *
+   * @param event
+   */
+  ChuckT.prototype.removeListeners = function(event) {
+    if (typeof event === 'undefined') {
+      this.listeners = {};
+    } else {
+      delete this.listeners[event];
+    }
+  };
+
+  /**
+   * Processes the given socket message
+   *
+   * Generally speaking, this method will be manually called from within the
+   * socket's onmessage() callback.
+   *
+   * If the message is not a "chuckt" message, then it is ignored.
+   *
+   * If the message is a callback message, then the callback matching the
+   * callbackid is invoked with any arguments that may also have been passed.
+   *
+   * If the message is an event message, then all listeners bound to that event
+   * are fired in order with any arguments that may also have been passed.
+   *
+   * @param message
+   */
+  ChuckT.prototype.process = function(message) {
+    var parsed = JSON.parse(message);
+    // don't handle non-chuckt messages
+    if (typeof parsed.chuckt !== 'object') return;
+    var chuckt = parsed.chuckt;
+
+    // message is a callback, so execute it
+    if (typeof chuckt.callbackid !== 'undefined') {
+      this.callbacks.use(chuckt.callbackid, chuckt.args);
+      return;
+    }
+
+    // message is an emitted event, so execute all corresponding listeners
+    if (typeof chuckt.event === 'string') {
+      if (!this.listeners[chuckt.event]) return;
+      for (var i in this.listeners[chuckt.event]) {
+        this.listeners[chuckt.event][i].apply(this, chuckt.args);
+      }
+    }
+  };
+
+  /**
+   * Serializes the given data as a json string with the chuckt prefix
+   *
+   * @param data
+   * @return {*}
+   */
+  ChuckT.prototype.serialize = function(data) {
+    return JSON.stringify({ chuckt: data });
+  };
+
+  /**
+   * Callback collection
+   *
+   * Since callbacks are inherently volatile (once a registered callback is
+   * fired, it is permanently deleted), some minor callback management is
+   * necessary to minimize CPU and memory impact.
+   *
+   * @constructor
+   */
+  var Callbacks = function(){
+    this.callbacks = [];
+    this.max = -1;
+  };
+
+  /**
+   * Registers the given callback and returns the callback's id
+   *
+   * @param callback
+   * @return {*}
+   */
+  Callbacks.prototype.register = function(callback){
+    this.callbacks[++this.max] = callback;
+    return this.max;
+  };
+
+  /**
+   * Invokes the callback identified by the callbackid with any arguments
+   *
+   * @param callbackid
+   * @param args
+   */
+  Callbacks.prototype.use = function(callbackid, args){
+    this.callbacks[callbackid].apply(this, args || {});
+    delete this.callbacks[callbackid];
+  };
+})();
diff --git a/circusweb/media/circus.js b/circusweb/media/circus.js
index 0e445f7..94dec08 100644
--- a/circusweb/media/circus.js
+++ b/circusweb/media/circus.js
@@ -1,32 +1,51 @@
-DEFAULT_CONFIG = { width: 290, height: 79, delay: 10, dataSize: 25,
-                   colors: { mem: 'rgb(93, 170, 204)',
-                             cpu: 'rgb(122, 185, 76)',
-                             reads: 'rgb(203, 81, 58)' }};
+DEFAULT_CONFIG = {
+    width: 290,
+    height: 79,
+    delay: 10,
+    dataSize: 25,
+    colors: {
+        mem: 'rgb(93, 170, 204)',
+        cpu: 'rgb(122, 185, 76)',
+        reads: 'rgb(203, 81, 58)'
+    }
+};
 
 function hookGraph(socket, watcher, graph_id, metrics, prefix, capValues, config) {
-    if (config == undefined) { config = DEFAULT_CONFIG; }
-    if (metrics == undefined) { metrics = ['cpu', 'mem']; }
-    if (prefix == undefined) { prefix = 'stats-'; }
-    if (capValues == undefined) { capValues = true; }
+    if (config === undefined) {
+        config = DEFAULT_CONFIG;
+    }
+    if (metrics === undefined) {
+        metrics = ['cpu', 'mem'];
+    }
+    if (prefix === undefined) {
+        prefix = 'stats-';
+    }
+    if (capValues === undefined) {
+        capValues = true;
+    }
 
     var series = [];
     metrics.forEach(function(metric) {
-        series.push({ name: metric, color: config.colors[metric] });
+        series.push({
+            name: metric,
+            color: config.colors[metric]
+        });
     });
 
     var graph = new Rickshaw.Graph({
-            element: document.getElementById(graph_id),
-            min: 0,
-            max: 100,
-            width: config.width,
-            height: config.height,
-            renderer: 'line',
-            interpolation: 'basis',
-            series: new Rickshaw.Series.FixedDuration(
-                series, undefined,
-                { timeInterval: config.delay,
-                  maxDataPoints: 25,
-                  timeBase: new Date().getTime() / 1000 })
+        element: document.getElementById(graph_id),
+        min: 0,
+        max: 100,
+        width: config.width,
+        height: config.height,
+        renderer: 'line',
+        interpolation: 'basis',
+        series: new Rickshaw.Series.FixedDuration(
+            series, undefined, {
+                timeInterval: config.delay,
+                maxDataPoints: 25,
+                timeBase: new Date().getTime() / 1000
+            })
     });
 
     socket.on(prefix + graph_id, function(received) {
@@ -39,17 +58,18 @@ function hookGraph(socket, watcher, graph_id, metrics, prefix, capValues, config
             } else {
                 data[metric] = received[metric];
             }
-
             var value = data[metric].toFixed(1);
-            if (metric != 'reads') { value += '%'; }
+            if (metric != 'reads') {
+                value += '%';
+            }
 
-            // JQuery seems to doesn't like base 64
-            text_dom = document.getElementById(graph_id +  '_last_' + metric);
+            // JQuery doesn't seem to like base 64
+            text_dom = document.getElementById(graph_id + '_last_' + metric);
             $(text_dom).text(value);
         });
 
-        if(received.hasOwnProperty("age")){
-            var val =  '(' + Math.round(received['age']) + 's)';
+        if (received.hasOwnProperty("age")) {
+            var val = '(' + Math.round(received.age) + 's)';
             var node = document.getElementById(graph_id + '_last_age');
             node.innerHTML = val;
         }
@@ -61,10 +81,12 @@ function hookGraph(socket, watcher, graph_id, metrics, prefix, capValues, config
 
 
 function supervise(socket, watchers, watchersWithPids, endpoints, stats_endpoints, config) {
-
-    if (watchersWithPids == undefined) { watchersWithPids = []; }
-    if (config == undefined) { config = DEFAULT_CONFIG; }
-
+    if (watchersWithPids === undefined) {
+        watchersWithPids = [];
+    }
+    if (config === undefined) {
+        config = DEFAULT_CONFIG;
+    }
     watchers_to_send = [];
 
     watchers.forEach(function(watcher_tuple) {
@@ -77,7 +99,6 @@ function supervise(socket, watchers, watchersWithPids, endpoints, stats_endpoint
         } else {
             hookGraph(socket, watcher, watcher + '-' + watcher_endpoint, ['cpu', 'mem'], 'stats-', true, config);
         }
-
         watchers_to_send.push(watcher);
     });
 
@@ -92,8 +113,7 @@ function supervise(socket, watchers, watchersWithPids, endpoints, stats_endpoint
                 data.fds.forEach(function(fd) {
                     var id = 'socket-stats-' + fd;
                     var graph_id = 'socket-stats-' + fd + '-' + watcher_stats_endpoint;
-                    hookGraph(socket, id, graph_id, ['reads'],
-                              '', false, config);
+                    hookGraph(socket, id, graph_id, ['reads'], '', false, config);
                 });
             });
         } else {
@@ -102,8 +122,7 @@ function supervise(socket, watchers, watchersWithPids, endpoints, stats_endpoint
                 data.pids.forEach(function(pid) {
                     var id = watcher + '-' + pid;
                     var graph_id = watcher + '-' + pid + '-' + watcher_stats_endpoint;
-                    hookGraph(socket, id, graph_id, ['cpu', 'mem'], 'stats-', false,
-                              config);
+                    hookGraph(socket, id, graph_id, ['cpu', 'mem'], 'stats-', false, config);
                 });
             });
         }
@@ -115,15 +134,21 @@ function supervise(socket, watchers, watchersWithPids, endpoints, stats_endpoint
     });
 
     // start the streaming of data, once the callbacks in place.
-    socket.emit('get_stats', { watchers: watchers_to_send,
-                               watchersWithPids: watchers_with_pid_to_send,
-                               endpoints: endpoints,
-                               stats_endpoints: stats_endpoints});
+    socket.socket.onopen = function(event) {
+        socket.socket.send(JSON.stringify({
+            name: 'get_stats',
+            watchers: watchers_to_send,
+            watchersWithPids: watchers_with_pid_to_send,
+            endpoints: endpoints,
+            stats_endpoints: stats_endpoints
+        }));
+    };
+
 }
 
 $(document).ready(function() {
     $('.add_watcher').click(function() {
-		$('#overlay form').attr('action', $(this).attr('data-add-url'));
+        $('#overlay form').attr('action', $(this).attr('data-add-url'));
         $('#overlay').show();
         return false;
     });
diff --git a/circusweb/media/sockjs.min.js b/circusweb/media/sockjs.min.js
new file mode 100644
index 0000000..f5b13c3
--- /dev/null
+++ b/circusweb/media/sockjs.min.js
@@ -0,0 +1,3 @@
+/* sockjs-client v1.1.0 | http://sockjs.org | MIT license */
+!function(t){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var e;"undefined"!=typeof window?e=window:"undefined"!=typeof global?e=global:"undefined"!=typeof self&&(e=self),e.SockJS=t()}}(function(){var t;return function e(t,n,r){function i(s,a){if(!n[s]){if(!t[s]){var u="function"==typeof require&&require;if(!a&&u)return u(s,!0);if(o)return o(s,!0);var l=new Error("Cannot find module '"+s+"'");throw l.code="MODULE_NOT_FOUND",l}var c=n[s]={exports:{}};t[s][0].call(c.exports,function(e){var n=t[s][1][e];return i(n?n:e)},c,c.exports,e,t,n,r)}return n[s].exports}for(var o="function"==typeof require&&require,s=0;s<r.length;s++)i(r[s]);return i}({1:[function(t,e){(function(n){"use strict";var r=t("./transport-list");e.exports=t("./main")(r),"_sockjs_onload"in n&&setTimeout(n._sockjs_onload,1)}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./main":14,"./transport-list":16}],2:[function(t,e){"use strict";function n(){i.call(this),this.initEvent("close",!1,!1),this.wasClean=!1,this.code=0,this.reason=""}var r=t("inherits"),i=t("./event");r(n,i),e.exports=n},{"./event":4,inherits:54}],3:[function(t,e){"use strict";function n(){i.call(this)}var r=t("inherits"),i=t("./eventtarget");r(n,i),n.prototype.removeAllListeners=function(t){t?delete this._listeners[t]:this._listeners={}},n.prototype.once=function(t,e){function n(){r.removeListener(t,n),i||(i=!0,e.apply(this,arguments))}var r=this,i=!1;this.on(t,n)},n.prototype.emit=function(){var t=arguments[0],e=this._listeners[t];if(e){for(var n=arguments.length,r=new Array(n-1),i=1;n>i;i++)r[i-1]=arguments[i];for(var o=0;o<e.length;o++)e[o].apply(this,r)}},n.prototype.on=n.prototype.addListener=i.prototype.addEventListener,n.prototype.removeListener=i.prototype.removeEventListener,e.exports.EventEmitter=n},{"./eventtarget":5,inherits:54}],4:[function(t,e){"use strict";function n(t){this.type=t}n.prototype.initEvent=function(t,e,n){return this.type=t,this.bubbles=e,this.cancelable=n,this.timeStamp=+new Date,this},n.prototype.stopPropagation=function(){},n.prototype.preventDefault=function(){},n.CAPTURING_PHASE=1,n.AT_TARGET=2,n.BUBBLING_PHASE=3,e.exports=n},{}],5:[function(t,e){"use strict";function n(){this._listeners={}}n.prototype.addEventListener=function(t,e){t in this._listeners||(this._listeners[t]=[]);var n=this._listeners[t];-1===n.indexOf(e)&&(n=n.concat([e])),this._listeners[t]=n},n.prototype.removeEventListener=function(t,e){var n=this._listeners[t];if(n){var r=n.indexOf(e);return-1!==r?void(n.length>1?this._listeners[t]=n.slice(0,r).concat(n.slice(r+1)):delete this._listeners[t]):void 0}},n.prototype.dispatchEvent=function(){var t=arguments[0],e=t.type,n=1===arguments.length?[t]:Array.apply(null,arguments);if(this["on"+e]&&this["on"+e].apply(this,n),e in this._listeners)for(var r=this._listeners[e],i=0;i<r.length;i++)r[i].apply(this,n)},e.exports=n},{}],6:[function(t,e){"use strict";function n(t){i.call(this),this.initEvent("message",!1,!1),this.data=t}var r=t("inherits"),i=t("./event");r(n,i),e.exports=n},{"./event":4,inherits:54}],7:[function(t,e){"use strict";function n(t){this._transport=t,t.on("message",this._transportMessage.bind(this)),t.on("close",this._transportClose.bind(this))}var r=t("json3"),i=t("./utils/iframe");n.prototype._transportClose=function(t,e){i.postMessage("c",r.stringify([t,e]))},n.prototype._transportMessage=function(t){i.postMessage("t",t)},n.prototype._send=function(t){this._transport.send(t)},n.prototype._close=function(){this._transport.close(),this._transport.removeAllListeners()},e.exports=n},{"./utils/iframe":47,json3:55}],8:[function(t,e){"use strict";var n=t("./utils/url"),r=t("./utils/event"),i=t("json3"),o=t("./facade"),s=t("./info-iframe-receiver"),a=t("./utils/iframe"),u=t("./location");e.exports=function(t,e){var l={};e.forEach(function(t){t.facadeTransport&&(l[t.facadeTransport.transportName]=t.facadeTransport)}),l[s.transportName]=s;var c;t.bootstrap_iframe=function(){var e;a.currentWindowId=u.hash.slice(1);var s=function(r){if(r.source===parent&&("undefined"==typeof c&&(c=r.origin),r.origin===c)){var s;try{s=i.parse(r.data)}catch(f){return}if(s.windowId===a.currentWindowId)switch(s.type){case"s":var h;try{h=i.parse(s.data)}catch(f){break}var d=h[0],p=h[1],v=h[2],m=h[3];if(d!==t.version)throw new Error('Incompatible SockJS! 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c=u.JSON,f=u.JSON3,h=!1,d=i(u,u.JSON3={noConflict:function(){return h||(h=!0,u.JSON=c,u.JSON3=f,c=f=null),d}});u.JSON={parse:d.parse,stringify:d.stringify}}o&&t(function(){return d})}).call(this)}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{}],56:[function(t,e){"use strict";function n(t,e,u){if(!(this instanceof n))return new n(t,e,u);var l,c,f,h,d=s.test(t),p=typeof e,v=this,m=0;for("object"!==p&&"string"!==p&&(u=e,e=null),u&&"function"!=typeof u&&(u=o.parse),e=i(e);m<a.length;m++)c=a[m],l=c[0],h=c[1],l!==l?v[h]=t:"string"==typeof l?~(f=t.indexOf(l))&&("number"==typeof c[2]?(v[h]=t.slice(0,f),t=t.slice(f+c[2])):(v[h]=t.slice(f),t=t.slice(0,f))):(f=l.exec(t))&&(v[h]=f[1],t=t.slice(0,t.length-f[0].length)),v[h]=v[h]||(c[3]||"port"===h&&d?e[h]||"":""),c[4]&&(v[h]=v[h].toLowerCase());u&&(v.query=u(v.query)),r(v.port,v.protocol)||(v.host=v.hostname,v.port=""),v.username=v.password="",v.auth&&(c=v.auth.split(":"),v.username=c[0]||"",v.password=c[1]||""),v.href=v.toString()}var r=t("requires-port"),i=t("./lolcation"),o=t("querystringify"),s=/^\/(?!\/)/,a=[["#","hash"],["?","query"],["//","protocol",2,1,1],["/","pathname"],["@","auth",1],[0/0,"host",void 0,1,1],[/\:(\d+)$/,"port"],[0/0,"hostname",void 0,1,1]];n.prototype.set=function(t,e,n){var i=this;return"query"===t?("string"==typeof e&&(e=(n||o.parse)(e)),i[t]=e):"port"===t?(i[t]=e,r(e,i.protocol)?e&&(i.host=i.hostname+":"+e):(i.host=i.hostname,i[t]="")):"hostname"===t?(i[t]=e,i.port&&(e+=":"+i.port),i.host=e):"host"===t?(i[t]=e,/\:\d+/.test(e)&&(e=e.split(":"),i.hostname=e[0],i.port=e[1])):i[t]=e,i.href=i.toString(),i},n.prototype.toString=function(t){t&&"function"==typeof t||(t=o.stringify);var e,n=this,r=n.protocol+"//";return n.username&&(r+=n.username,n.password&&(r+=":"+n.password),r+="@"),r+=n.hostname,n.port&&(r+=":"+n.port),r+=n.pathname,n.query&&(e="object"==typeof n.query?t(n.query):n.query,r+=("?"===e.charAt(0)?"":"?")+e),n.hash&&(r+=n.hash),r},n.qs=o,n.location=i,e.exports=n},{"./lolcation":57,querystringify:58,"requires-port":59}],57:[function(t,e){(function(n){"use strict";var r,i={hash:1,query:1};e.exports=function(e){e=e||n.location||{},r=r||t("./");var o,s={},a=typeof e;if("blob:"===e.protocol)s=new r(unescape(e.pathname),{});else if("string"===a){s=new r(e,{});for(o in i)delete s[o]}else 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diff --git a/circusweb/namespace.py b/circusweb/namespace.py
index cd10266..6372413 100644
--- a/circusweb/namespace.py
+++ b/circusweb/namespace.py
@@ -1,15 +1,22 @@
-import tornadio2
+from __future__ import unicode_literals, absolute_import
+from sockjs.tornado import SockJSConnection
 from tornado import gen
 from collections import defaultdict
-from base64 import b64encode, b64decode
+import json
+# from base64 import b64encode, b64decode
 
 
-class SocketIOConnection(tornadio2.SocketConnection):
+def chucktify(name, *args, **kwargs):
+    """Format for chuckt SockJS event client."""
+    return json.dumps({'chuckt': {'event': name, 'args': [kwargs, args]}})
+
+
+class SocketConnection(SockJSConnection):
 
     participants = defaultdict(set)
 
     def __init__(self, *args, **kwargs):
-        super(SocketIOConnection, self).__init__(*args, **kwargs)
+        super(SocketConnection, self).__init__(*args, **kwargs)
         self.stats_endpoints = []
 
     def on_close(self):
@@ -19,29 +26,35 @@ def on_close(self):
             self.participants[endpoint].discard(self)
             controller.disconnect_stats_endpoint(endpoint)
 
-    @tornadio2.event
     @gen.coroutine
+    def on_message(self, data):
+        data = json.loads(data)
+        if data['name'] != "get_stats":
+            return
+        return self.get_stats(**data)
+
     def get_stats(self, watchers=[], watchersWithPids=[],
-                  endpoints=[], stats_endpoints=[]):
+                  endpoints=[], stats_endpoints=[], **kwargs):
         from circusweb.session import get_controller  # Circular import
+        from .circushttpd import b64decode
         controller = get_controller()
 
         for watcher_tuple in watchersWithPids:
             watcher, encoded_endpoint = watcher_tuple
             endpoint = b64decode(encoded_endpoint)
+
             if watcher == "sockets":
                 sockets = yield gen.Task(controller.get_sockets,
                                          endpoint=endpoint)
                 fds = [s['fd'] for s in sockets]
-                self.emit('socket-stats-fds-{endpoint}'.format(
-                    endpoint=encoded_endpoint), fds=fds)
+                self.send(chucktify('socket-stats-fds-{endpoint}'.format(
+                    endpoint=encoded_endpoint), fds=fds))
             else:
                 pids = yield gen.Task(controller.get_pids, watcher, endpoint)
                 pids = [int(pid) for pid in pids]
                 channel = 'stats-{watcher}-pids-{endpoint}'.format(
                     watcher=watcher, endpoint=encoded_endpoint)
-                self.emit(channel, pids=pids)
-
+                self.send(chucktify(channel, pids=pids))
         self.watchers = watchers
 
         # Dirty fix
@@ -54,41 +67,41 @@ def get_stats(self, watchers=[], watchersWithPids=[],
 
     @classmethod
     def consume_stats(cls, watcher, pid, stat, stat_endpoint):
-        stat_endpoint_b64 = b64encode(stat_endpoint)
+        from .circushttpd import b64encode
+        stat_endpoint_b64 = b64encode(stat_endpoint).decode('utf-8')
         for p in cls.participants[stat_endpoint]:
-            if watcher == 'sockets':
-                # if we get information about sockets and we explicitely
-                # requested them, send back the information.
-                if 'sockets' in p.watchersWithPids and 'fd' in stat:
-                    p.emit('socket-stats-{fd}-{endpoint}'.format(
-                        fd=stat['fd'], endpoint=stat_endpoint_b64),
-                        **stat)
-                elif 'sockets' in p.watchers and 'addresses' in stat:
-                    p.emit('socket-stats-{endpoint}'.format(
-                        endpoint=stat_endpoint_b64), reads=stat['reads'],
-                        adresses=stat['addresses'])
-            else:
-                available_watchers = p.watchers + p.watchersWithPids + \
-                    ['circus']
-                # these are not sockets but normal watchers
-                if watcher in available_watchers:
-                    if (watcher == 'circus'
-                            and stat.get('name', None) in available_watchers):
-                        p.emit('stats-{watcher}-{endpoint}'.format(
-                            watcher=stat['name'], endpoint=stat_endpoint_b64),
-                            mem=stat['mem'], cpu=stat['cpu'], age=stat['age'])
+            cls.send_stats(p, watcher, pid, stat, stat_endpoint_b64)
+
+    @classmethod
+    def send_stats(cls, p, watcher, pid, stat, stat_endpoint):
+        if watcher == 'sockets':
+            # if we get information about sockets and we explicitely
+            # requested them, send back the information.
+            if 'sockets' in p.watchersWithPids and 'fd' in stat:
+                event = 'socket-stats-{fd}-{endpoint}'.format(
+                    fd=stat['fd'], endpoint=stat_endpoint)
+                p.send(chucktify(event, **stat))
+            elif 'sockets' in p.watchers and 'addresses' in stat:
+                event = 'socket-stats-{endpoint}'.format(endpoint=stat_endpoint)  # noqa
+                keys_to_send = ('reads', 'addresses',)
+                p.send(chucktify(event, **dict((k, stat[k]) for k in keys_to_send)))  # noqa
+        else:
+            available_watchers = p.watchers + p.watchersWithPids + ['circus']
+            # these are not sockets but normal watchers
+            if watcher in available_watchers:
+                keys_to_send = ('mem', 'cpu', 'age')
+                if (watcher == 'circus' and stat.get(
+                        'name', None) in available_watchers):
+                    event = 'stats-{watcher}-{endpoint}'.format(
+                        watcher=stat['name'], endpoint=stat_endpoint)
+                    p.send(chucktify(event, **dict((k, stat[k]) for k in keys_to_send)))  # noqa
+                else:
+                    if pid is None:  # means that it's the aggregation
+                        event = 'stats-{watcher}-{endpoint}'.format(
+                            watcher=watcher, endpoint=stat_endpoint)
+                        p.send(chucktify(event, **dict((k, stat[k]) for k in keys_to_send)))  # noqa
                     else:
-                        if pid is None:  # means that it's the aggregation
-                            p.emit('stats-{watcher}-{endpoint}'.format(
-                                watcher=watcher, endpoint=stat_endpoint_b64),
-                                mem=stat['mem'], cpu=stat['cpu'],
-                                age=stat['age'])
-                        else:
-                            if watcher in p.watchersWithPids:
-                                p.emit(
-                                    'stats-{watcher}-{pid}-{endpoint}'.format(
-                                        watcher=watcher, pid=pid,
-                                        endpoint=stat_endpoint_b64),
-                                    mem=stat['mem'],
-                                    cpu=stat['cpu'],
-                                    age=stat['age'])
+                        if watcher in p.watchersWithPids:
+                            event = 'stats-{watcher}-{pid}-{endpoint}'.format(  # noqa
+                                watcher=watcher, pid=pid, endpoint=stat_endpoint)  # noqa
+                            p.send(chucktify(event, **dict((k, stat[k]) for k in keys_to_send)))  # noqa
diff --git a/circusweb/server.py b/circusweb/server.py
index 6d43483..a59c3c8 100644
--- a/circusweb/server.py
+++ b/circusweb/server.py
@@ -1,3 +1,4 @@
+from __future__ import unicode_literals
 import socket
 
 
@@ -13,7 +14,6 @@ def run(self, handler):
             from socketio.server import SocketIOServer
         except ImportError:
             raise ImportError('You need to install gevent_socketio')
-
         namespace = self.options.get('namespace', 'socket.io')
         policy_server = self.options.get('policy_server', False)
 
diff --git a/circusweb/session.py b/circusweb/session.py
index 3269cde..9226941 100644
--- a/circusweb/session.py
+++ b/circusweb/session.py
@@ -1,3 +1,4 @@
+from __future__ import unicode_literals
 from circusweb.controller import Controller
 from tornado import gen
 
@@ -55,9 +56,9 @@ def get(cls, session_id):
     @classmethod
     def new(cls, session_id):
         session = Session()
-        cls.sessions[session_id] = session
+        cls.sessions[session_id.encode('ascii')] = session
         return session
 
     @classmethod
     def delete(cls, session_id):
-        del cls.sessions[session_id]
+        del cls.sessions[session_id.encode('ascii')]
diff --git a/circusweb/stats_client.py b/circusweb/stats_client.py
index dda828c..82b2f53 100644
--- a/circusweb/stats_client.py
+++ b/circusweb/stats_client.py
@@ -1,3 +1,5 @@
+from __future__ import unicode_literals
+
 import errno
 import json
 import zmq
@@ -17,7 +19,7 @@ def __init__(self, topics, loop, callback, context=None,
         self.pubsub_socket = self.context.socket(zmq.SUB)
         get_connection(self.pubsub_socket, self.endpoint, ssh_server)
         for topic in self.topics:
-            self.pubsub_socket.setsockopt(zmq.SUBSCRIBE, topic)
+            self.pubsub_socket.setsockopt_string(zmq.SUBSCRIBE, topic)
         self.stream = ZMQStream(self.pubsub_socket, loop)
         self.stream.on_recv(self.process_message)
         self.callback = callback
@@ -35,8 +37,8 @@ def __exit__(self, exc_type, exc_value, traceback):
 
     def process_message(self, msg):
         topic, stat = msg
-
-        topic = topic.split('.')
+        stat = stat.decode('utf-8')
+        topic = topic.decode('utf-8').split('.')
         if len(topic) == 3:
             __, watcher, subtopic = topic
             self.callback(watcher, subtopic, json.loads(stat), self.endpoint)
diff --git a/circusweb/templates/base.html b/circusweb/templates/base.html
index 0e57031..40bae87 100644
--- a/circusweb/templates/base.html
+++ b/circusweb/templates/base.html
@@ -15,11 +15,11 @@
     <link rel="stylesheet" href="${static_url('circus.css')}" type="text/css" />
     <link rel="shortcut icon" href="${static_url('favicon.ico')}"/>
     <link rel="shortcut icon" type="image/x-icon" href="${static_url('favicon.ico')}" />
-    <script type="text/javascript" src="${static_url('socket.io.js')}"></script>
+    <script type="text/javascript" src="${static_url('sockjs.min.js')}"></script>
     <script type="text/javascript" src="${static_url('jquery.min.js')}"></script>
-
     <script type="text/javascript" src="${static_url('rickshaw.min.js')}"></script>
     <script type="text/javascript" src="${static_url('d3.v2.js')}"></script>
+    <script type="text/javascript" src="${static_url('chuckt.js')}"></script>
     <script type="text/javascript" src="${static_url('circus.js')}"></script>
 </head>
 <body>
diff --git a/circusweb/templates/index.html b/circusweb/templates/index.html
index 460499c..4049861 100644
--- a/circusweb/templates/index.html
+++ b/circusweb/templates/index.html
@@ -156,7 +156,8 @@
 
 <script type="text/javascript">
 $(document).ready(function () {
-    var socket = io.connect('${SERVER}');
+    var sock = new SockJS('${SERVER}');
+    var socket = epixa.chucktify(sock);
     var watchers = [];
     % for endpoint, stat_endpoint in endpoints.items():
         watchers.push(['circusd-stats', ${dumps(b64encode(stat_endpoint))}]);
diff --git a/circusweb/templates/sockets.html b/circusweb/templates/sockets.html
index 40ebdca..1dbd294 100644
--- a/circusweb/templates/sockets.html
+++ b/circusweb/templates/sockets.html
@@ -38,10 +38,11 @@
     </div>
 % endfor
 
-<script src="${static_url('socket.io.js')}"></script>
+<script type="text/javascript" src="${static_url('sockjs.min.js')}"></script>
 <script type="text/javascript">
     $(document).ready(function () {
-        var socket = io.connect('${SERVER}');
+        var sock = new SockJS('${SERVER}');
+        var socket = epixa.chucktify(sock);
         var watchers = [];
         var stats_endpoints = [];
         % for endpoint in sockets.keys():
diff --git a/circusweb/templates/watcher.html b/circusweb/templates/watcher.html
index b9a8e0a..1d4281e 100644
--- a/circusweb/templates/watcher.html
+++ b/circusweb/templates/watcher.html
@@ -169,10 +169,12 @@
         </tr>
     </table>
 
-<script src="${static_url('socket.io.js')}"></script>
+<script type="text/javascript" src="${static_url('sockjs.min.js')}"></script>
 <script type="text/javascript">
     $(document).ready(function () {
-        var socket = io.connect('${SERVER}');
+        var sock = new SockJS('${SERVER}');
+        var socket = epixa.chucktify(sock);
+        console.log(socket);
         supervise(socket, [], [['${name}', ${dumps(b64encode(endpoints[endpoint]))}, ${dumps(b64encode(endpoint))}]], ${dumps([endpoint])}, ${dumps([endpoints[endpoint]])});
     });
 </script>
diff --git a/circusweb/util.py b/circusweb/util.py
index 7b47ef7..83d3ec4 100644
--- a/circusweb/util.py
+++ b/circusweb/util.py
@@ -1,3 +1,4 @@
+from __future__ import unicode_literals
 import json
 import socket
 import sys
@@ -83,13 +84,12 @@ def rediscover(self):
 
     def get_message(self, fd_no, type):
         data, address = self.sock.recvfrom(1024)
-        data = json.loads(data)
+        data = json.loads(data.decode('utf-8'))
         endpoint = data.get('endpoint', '')
         if endpoint.startswith('tcp://'):
             # In case of multi interface binding i.e:
             # tcp://0.0.0.0:5557
             endpoint = endpoint.replace('0.0.0.0', address[0])
-
         self.discovered_endpoints.add(endpoint)
 
     def get_endpoints(self):
diff --git a/pip-requirements.txt b/pip-requirements.txt
index a54a038..5c4c00b 100644
--- a/pip-requirements.txt
+++ b/pip-requirements.txt
@@ -4,6 +4,6 @@ anyjson
 pyzmq
 circus
 tornado
-git+git://github.com/tomassedovic/tornadio2.git@python3#tornadIO2-0.0.3
+sockjs-tornado
 tomako
 six
diff --git a/setup.py b/setup.py
index 66a7b71..bf5e115 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 
 install_requires = ['Mako', 'MarkupSafe', 'anyjson', 'six',
-                    'pyzmq', 'circus', 'tornado', 'tornadIO2==0.0.3', 'tomako']
+                    'pyzmq', 'circus', 'tornado', 'sockjs-tornado', 'tomako']
 
 try:
     import argparse     # NOQA
@@ -37,9 +37,6 @@
           "License :: OSI Approved :: Apache Software License",
           "Development Status :: 3 - Alpha"],
       install_requires=install_requires,
-      dependency_links=[
-          'https://github.com/tomassedovic/tornadio2/archive/python3.zip#egg=tornadIO2-0.0.3',
-      ],
       tests_require=['webtest', 'unittest2'],
       test_suite='circusweb.tests',
       entry_points="""
diff --git a/tox.ini b/tox.ini
index 6dd1fa9..0e36f22 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py26,py27,py34,flake8
+envlist = py26,py27,py34,py35,flake8
 
 [testenv]
 deps = -r{toxinidir}/test-requirements.txt