From b7332a64729949951b4e9099032837a5d59ffb17 Mon Sep 17 00:00:00 2001 From: Michael Penick Date: Tue, 25 Jan 2022 10:43:15 -0500 Subject: [PATCH] Add basic functionality for downloading the Astra secure connect bundle I think that the cli flags could use some updating to be more use friendly and to separate Astra from OSS Cassandra. --- astra/bundle.go | 71 ++++++++++++++++++++++++ astra/bundle_test.go | 5 +- go.mod | 2 +- go.sum | 125 +++++++++++++++++++++++++++++++++++++++++++ proxy.go | 15 +++++- 5 files changed, 214 insertions(+), 4 deletions(-) diff --git a/astra/bundle.go b/astra/bundle.go index f14174b..ba493cc 100644 --- a/astra/bundle.go +++ b/astra/bundle.go @@ -16,15 +16,24 @@ package astra import ( "archive/zip" + "bytes" + "context" "crypto/tls" "crypto/x509" "encoding/json" + "errors" "fmt" "io" "io/ioutil" + "net/http" "runtime" + "time" + + "github.com/datastax/astra-client-go/v2/astra" ) +const URL = "https://api.astra.datastax.com" + type Bundle struct { tlsConfig *tls.Config host string @@ -85,6 +94,68 @@ func LoadBundleZipFromPath(path string) (*Bundle, error) { return LoadBundleZip(&reader.Reader) } +func LoadBundleZipFromURL(url, databaseID, token string, timeout time.Duration) (*Bundle, error) { + ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(timeout)) + defer cancel() + + credsURL, err := generateSecureBundleURLWithResponse(url, databaseID, token, ctx) + if err != nil { + return nil, fmt.Errorf("error generating secure bundle zip URLs: %v", err) + } + resp, err := http.Get(credsURL.DownloadURL) + + defer resp.Body.Close() + + body, err := readAllWithTimeout(resp.Body, ctx) + if err != nil { + return nil, fmt.Errorf("error downloading bundle zip: %v", err) + } + + reader, err := zip.NewReader(bytes.NewReader(body), int64(len(body))) + if err != nil { + return nil, fmt.Errorf("error creating zip reader for bundle zip: %v", err) + } + + return LoadBundleZip(reader) +} + +func readAllWithTimeout(r io.Reader, ctx context.Context) (bytes []byte, err error) { + ch := make(chan struct{}) + + go func() { + bytes, err = ioutil.ReadAll(r) + close(ch) + }() + + select { + case <-ch: + case <-ctx.Done(): + return nil, errors.New("timeout reading data") + } + + return bytes, err +} + +func generateSecureBundleURLWithResponse(url, databaseID, token string, ctx context.Context) (*astra.CredsURL, error) { + client, err := astra.NewClientWithResponses(url, func(c *astra.Client) error { + c.RequestEditors = append(c.RequestEditors, func(ctx context.Context, req *http.Request) error { + req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", token)) + return nil + }) + return nil + }) + if err != nil { + return nil, err + } + res, err := client.GenerateSecureBundleURLWithResponse(ctx, astra.DatabaseIdParam(databaseID)) + + if res.StatusCode() != http.StatusOK { + return nil, fmt.Errorf("unable to generate bundle urls, failed with status code %d", res.StatusCode()) + } + + return res.JSON200, nil +} + func (b *Bundle) Host() string { return b.host } diff --git a/astra/bundle_test.go b/astra/bundle_test.go index 87d56c8..bb62249 100644 --- a/astra/bundle_test.go +++ b/astra/bundle_test.go @@ -24,8 +24,6 @@ import ( "encoding/asn1" "encoding/json" "encoding/pem" - "github.com/stretchr/testify/assert" - "github.com/stretchr/testify/require" "io" "io/ioutil" "math/big" @@ -33,6 +31,9 @@ import ( "sync" "testing" "time" + + "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" ) func TestLoadBundleZip(t *testing.T) { diff --git a/go.mod b/go.mod index 5348735..4db81fa 100644 --- a/go.mod +++ b/go.mod @@ -4,7 +4,7 @@ go 1.16 require ( github.com/alecthomas/kong v0.2.17 - github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20210521184019-c5ad59b459ec + github.com/datastax/astra-client-go/v2 v2.2.9 // indirect github.com/datastax/go-cassandra-native-protocol v0.0.0-20211124104234-f6aea54fa801 github.com/hashicorp/golang-lru v0.5.4 github.com/stretchr/testify v1.7.0 diff --git a/go.sum b/go.sum index c8c809d..dcd9d9f 100644 --- a/go.sum +++ b/go.sum @@ -3,35 +3,109 @@ github.com/alecthomas/kong v0.2.17/go.mod h1:ka3VZ8GZNPXv9Ov+j4YNLkI8mTuhXyr/0kt github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20210521184019-c5ad59b459ec h1:EEyRvzmpEUZ+I8WmD5cw/vY8EqhambkOqy5iFr0908A= github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20210521184019-c5ad59b459ec/go.mod h1:F7bn7fEU90QkQ3tnmaTx3LTKLEDqnwWODIYppRQ5hnY= github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4= +github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= +github.com/cyberdelia/templates v0.0.0-20141128023046-ca7fffd4298c/go.mod h1:GyV+0YP4qX0UQ7r2MoYZ+AvYDp12OF5yg4q8rGnyNh4= +github.com/datastax/astra-client-go/v2 v2.2.9 h1:UhsKot0om1OuVM6lbUq7X3k0Dl1QuuLi84+20JJHXeE= +github.com/datastax/astra-client-go/v2 v2.2.9/go.mod h1:6Ja4wfAU375DVpc+QTaAn6vm/yuTP0mUfV2NWq3qT80= 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h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= +golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= +golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= +golang.org/x/crypto v0.0.0-20201217014255-9d1352758620/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I= +golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= +golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= +golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= +golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= +golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= +golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= +golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys 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v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10= gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo= gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/proxy.go b/proxy.go index 53c4c05..09ccedb 100644 --- a/proxy.go +++ b/proxy.go @@ -35,6 +35,8 @@ var cli struct { Bundle string `help:"Path to secure connect bundle" short:"b" env:"BUNDLE"` Username string `help:"Username to use for authentication" short:"u" env:"USERNAME"` Password string `help:"Password to use for authentication" short:"p" env:"PASSWORD"` + Token string `help:"Token" short:"t" env:"TOKEN"` + DatabaseID string `help:"Database ID" short:"i" env:"DATABASE_ID"` ContactPoints []string `help:"Contact points for cluster. Ignored if using the bundle path option." short:"c" env:"CONTACT_POINTS"` ProtocolVersion string `help:"Initial protocol version to use when connecting to the backend cluster (default: v4, options: v3, v4, v5, DSEv1, DSEv2)" short:"n" env:"PROTOCOL_VERSION"` MaxProtocolVersion string `help:"Max protocol version supported by the backend cluster (default: v4, options: v3, v4, v5, DSEv1, DSEv2)" short:"m" env:"MAX_PROTOCOL_VERSION"` @@ -72,11 +74,22 @@ func main() { if len(cli.Bundle) > 0 { bundle, err := astra.LoadBundleZipFromPath(cli.Bundle) if err != nil { - cliCtx.Fatalf("unable to open bundle %s: %v", cli.Bundle, err) + cliCtx.Fatalf("unable to open bundle %s from file: %v", cli.Bundle, err) } resolver = astra.NewResolver(bundle) } else if len(cli.ContactPoints) > 0 { resolver = proxycore.NewResolver(cli.ContactPoints...) + } else if len(cli.Token) > 0 { + if len(cli.DatabaseID) == 0 { + cliCtx.Fatalf("database ID is required when using a token") + } + bundle, err := astra.LoadBundleZipFromURL(astra.URL, cli.DatabaseID, cli.Token, 10*time.Second) + if err != nil { + cliCtx.Fatalf("unable to load bundle %s from astra: %v", cli.Bundle, err) + } + resolver = astra.NewResolver(bundle) + cli.Username = "token" + cli.Password = cli.Token } else { cliCtx.Fatalf("must provide either bundle path or contact points") }