diff options
29 files changed, 1203 insertions, 632 deletions
@@ -32,7 +32,7 @@ require ( github.com/go-playground/form/v4 v4.2.1 github.com/google/uuid v1.4.0 github.com/gorilla/feeds v1.1.1 - github.com/gorilla/websocket v1.5.0 + github.com/gorilla/websocket v1.5.1 github.com/h2non/filetype v1.1.3 github.com/jackc/pgx/v5 v5.5.0 github.com/microcosm-cc/bluemonday v1.0.26 @@ -327,8 +327,8 @@ github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+ github.com/gorilla/sessions v1.2.1 h1:DHd3rPN5lE3Ts3D8rKkQ8x/0kqfeNmBAaiSi+o7FsgI= github.com/gorilla/sessions v1.2.1/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM= github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= -github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc= -github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= +github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY= +github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY= github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0 h1:YBftPWNWd4WwGqtY2yeZL2ef8rHAxPBD8KFhJpmcqms= github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0/go.mod h1:YN5jB8ie0yfIUg6VvR9Kz84aCaG7AsGZnLjhHbUqwPg= github.com/h2non/filetype v1.1.3 h1:FKkx9QbD7HR/zjK1Ia5XiBsq9zdLi5Kf3zGyFTAFkGg= diff --git a/internal/api/client/streaming/stream.go b/internal/api/client/streaming/stream.go index 1f34e3447..2d1c48341 100644 --- a/internal/api/client/streaming/stream.go +++ b/internal/api/client/streaming/stream.go @@ -162,24 +162,27 @@ func (m *Module) StreamGETHandler(c *gin.Context) { } if token != "" { + // Token was provided, use it to authorize stream. account, errWithCode = m.processor.Stream().Authorize(c.Request.Context(), token) + if errWithCode != nil { + apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1) + return + } + } else { + // No explicit token was provided: // try regular oauth as a last resort. - account, errWithCode = func() (*gtsmodel.Account, gtserror.WithCode) { - authed, err := oauth.Authed(c, true, true, true, true) - if err != nil { - return nil, gtserror.NewErrorUnauthorized(err, err.Error()) - } - - return authed.Account, nil - }() - } + authed, err := oauth.Authed(c, true, true, true, true) + if err != nil { + errWithCode := gtserror.NewErrorUnauthorized(err, err.Error()) + apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1) + return + } - if errWithCode != nil { - apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1) - return + // Set the auth'ed account. + account = authed.Account } // Get the initial requested stream type, if there is one. diff --git a/internal/api/client/streaming/streaming_test.go b/internal/api/client/streaming/streaming_test.go index 30574080e..df4009890 100644 --- a/internal/api/client/streaming/streaming_test.go +++ b/internal/api/client/streaming/streaming_test.go @@ -19,6 +19,7 @@ package streaming_test import ( "bufio" + "encoding/base64" "errors" "fmt" "io/ioutil" @@ -227,17 +228,21 @@ func (suite *StreamingTestSuite) TestSecurityHeader() { ctx.Request.Header.Set("Connection", "upgrade") ctx.Request.Header.Set("Upgrade", "websocket") ctx.Request.Header.Set("Sec-Websocket-Version", "13") - ctx.Request.Header.Set("Sec-Websocket-Key", "abcd") + key := [16]byte{'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd'} + key64 := base64.StdEncoding.EncodeToString(key[:]) // sec-websocket-key must be base64 encoded and 16 bytes long + ctx.Request.Header.Set("Sec-Websocket-Key", key64) suite.streamingModule.StreamGETHandler(ctx) - // check response - suite.EqualValues(http.StatusOK, recorder.Code) - result := recorder.Result() defer result.Body.Close() - _, err := ioutil.ReadAll(result.Body) + b, err := ioutil.ReadAll(result.Body) suite.NoError(err) + + // check response + if !suite.EqualValues(http.StatusOK, recorder.Code) { + suite.T().Logf("%s", b) + } } func TestStreamingTestSuite(t *testing.T) { diff --git a/vendor/github.com/gorilla/websocket/.editorconfig b/vendor/github.com/gorilla/websocket/.editorconfig new file mode 100644 index 000000000..2940ec92a --- /dev/null +++ b/vendor/github.com/gorilla/websocket/.editorconfig @@ -0,0 +1,20 @@ +; https://editorconfig.org/ + +root = true + +[*] +insert_final_newline = true +charset = utf-8 +trim_trailing_whitespace = true +indent_style = space +indent_size = 2 + +[{Makefile,go.mod,go.sum,*.go,.gitmodules}] +indent_style = tab +indent_size = 4 + +[*.md] +indent_size = 4 +trim_trailing_whitespace = false + +eclint_indent_style = unset diff --git a/vendor/github.com/gorilla/websocket/.gitignore b/vendor/github.com/gorilla/websocket/.gitignore index cd3fcd1ef..84039fec6 100644 --- a/vendor/github.com/gorilla/websocket/.gitignore +++ b/vendor/github.com/gorilla/websocket/.gitignore @@ -1,25 +1 @@ -# Compiled Object files, Static and Dynamic libs (Shared Objects) -*.o -*.a -*.so - -# Folders -_obj -_test - -# Architecture specific extensions/prefixes -*.[568vq] -[568vq].out - -*.cgo1.go -*.cgo2.c -_cgo_defun.c -_cgo_gotypes.go -_cgo_export.* - -_testmain.go - -*.exe - -.idea/ -*.iml +coverage.coverprofile diff --git a/vendor/github.com/gorilla/websocket/.golangci.yml b/vendor/github.com/gorilla/websocket/.golangci.yml new file mode 100644 index 000000000..34882139e --- /dev/null +++ b/vendor/github.com/gorilla/websocket/.golangci.yml @@ -0,0 +1,3 @@ +run: + skip-dirs: + - examples/*.go diff --git a/vendor/github.com/gorilla/websocket/AUTHORS b/vendor/github.com/gorilla/websocket/AUTHORS deleted file mode 100644 index 1931f4006..000000000 --- a/vendor/github.com/gorilla/websocket/AUTHORS +++ /dev/null @@ -1,9 +0,0 @@ -# This is the official list of Gorilla WebSocket authors for copyright -# purposes. -# -# Please keep the list sorted. - -Gary Burd <gary@beagledreams.com> -Google LLC (https://opensource.google.com/) -Joachim Bauch <mail@joachim-bauch.de> - diff --git a/vendor/github.com/gorilla/websocket/LICENSE b/vendor/github.com/gorilla/websocket/LICENSE index 9171c9722..bb9d80bc9 100644 --- a/vendor/github.com/gorilla/websocket/LICENSE +++ b/vendor/github.com/gorilla/websocket/LICENSE @@ -1,22 +1,27 @@ -Copyright (c) 2013 The Gorilla WebSocket Authors. All rights reserved. +Copyright (c) 2023 The Gorilla Authors. All rights reserved. Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: +modification, are permitted provided that the following conditions are +met: - Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. - Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND -ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE -FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/gorilla/websocket/Makefile b/vendor/github.com/gorilla/websocket/Makefile new file mode 100644 index 000000000..603a63f50 --- /dev/null +++ b/vendor/github.com/gorilla/websocket/Makefile @@ -0,0 +1,34 @@ +GO_LINT=$(shell which golangci-lint 2> /dev/null || echo '') +GO_LINT_URI=github.com/golangci/golangci-lint/cmd/golangci-lint@latest + +GO_SEC=$(shell which gosec 2> /dev/null || echo '') +GO_SEC_URI=github.com/securego/gosec/v2/cmd/gosec@latest + +GO_VULNCHECK=$(shell which govulncheck 2> /dev/null || echo '') +GO_VULNCHECK_URI=golang.org/x/vuln/cmd/govulncheck@latest + +.PHONY: golangci-lint +golangci-lint: + $(if $(GO_LINT), ,go install $(GO_LINT_URI)) + @echo "##### Running golangci-lint" + golangci-lint run -v + +.PHONY: gosec +gosec: + $(if $(GO_SEC), ,go install $(GO_SEC_URI)) + @echo "##### Running gosec" + gosec -exclude-dir examples ./... + +.PHONY: govulncheck +govulncheck: + $(if $(GO_VULNCHECK), ,go install $(GO_VULNCHECK_URI)) + @echo "##### Running govulncheck" + govulncheck ./... + +.PHONY: verify +verify: golangci-lint gosec govulncheck + +.PHONY: test +test: + @echo "##### Running tests" + go test -race -cover -coverprofile=coverage.coverprofile -covermode=atomic -v ./... diff --git a/vendor/github.com/gorilla/websocket/README.md b/vendor/github.com/gorilla/websocket/README.md index 2517a2871..1fd5e9c4e 100644 --- a/vendor/github.com/gorilla/websocket/README.md +++ b/vendor/github.com/gorilla/websocket/README.md @@ -1,17 +1,14 @@ -# Gorilla WebSocket +# gorilla/websocket -[](https://godoc.org/github.com/gorilla/websocket) -[](https://circleci.com/gh/gorilla/websocket) + +[](https://codecov.io/github/gorilla/websocket) +[](https://godoc.org/github.com/gorilla/websocket) +[](https://sourcegraph.com/github.com/gorilla/websocket?badge) -Gorilla WebSocket is a [Go](http://golang.org/) implementation of the -[WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol. +Gorilla WebSocket is a [Go](http://golang.org/) implementation of the [WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol. + ---- - -⚠️ **[The Gorilla WebSocket Package is looking for a new maintainer](https://github.com/gorilla/websocket/issues/370)** - ---- ### Documentation @@ -20,6 +17,7 @@ Gorilla WebSocket is a [Go](http://golang.org/) implementation of the * [Command example](https://github.com/gorilla/websocket/tree/master/examples/command) * [Client and server example](https://github.com/gorilla/websocket/tree/master/examples/echo) * [File watch example](https://github.com/gorilla/websocket/tree/master/examples/filewatch) +* [Write buffer pool example](https://github.com/gorilla/websocket/tree/master/examples/bufferpool) ### Status @@ -36,4 +34,3 @@ package API is stable. The Gorilla WebSocket package passes the server tests in the [Autobahn Test Suite](https://github.com/crossbario/autobahn-testsuite) using the application in the [examples/autobahn subdirectory](https://github.com/gorilla/websocket/tree/master/examples/autobahn). - diff --git a/vendor/github.com/gorilla/websocket/client.go b/vendor/github.com/gorilla/websocket/client.go index 2efd83555..815b0ca5c 100644 --- a/vendor/github.com/gorilla/websocket/client.go +++ b/vendor/github.com/gorilla/websocket/client.go @@ -9,14 +9,18 @@ import ( "context" "crypto/tls" "errors" + "fmt" "io" - "io/ioutil" + "log" + "net" "net/http" "net/http/httptrace" "net/url" "strings" "time" + + "golang.org/x/net/proxy" ) // ErrBadHandshake is returned when the server response to opening handshake is @@ -224,6 +228,7 @@ func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader h k == "Connection" || k == "Sec-Websocket-Key" || k == "Sec-Websocket-Version" || + //#nosec G101 (CWE-798): Potential HTTP request smuggling via parameter pollution k == "Sec-Websocket-Extensions" || (k == "Sec-Websocket-Protocol" && len(d.Subprotocols) > 0): return nil, nil, errors.New("websocket: duplicate header not allowed: " + k) @@ -289,7 +294,9 @@ func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader h } err = c.SetDeadline(deadline) if err != nil { - c.Close() + if err := c.Close(); err != nil { + log.Printf("websocket: failed to close network connection: %v", err) + } return nil, err } return c, nil @@ -303,7 +310,7 @@ func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader h return nil, nil, err } if proxyURL != nil { - dialer, err := proxy_FromURL(proxyURL, netDialerFunc(netDial)) + dialer, err := proxy.FromURL(proxyURL, netDialerFunc(netDial)) if err != nil { return nil, nil, err } @@ -318,18 +325,20 @@ func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader h } netConn, err := netDial("tcp", hostPort) + if err != nil { + return nil, nil, err + } if trace != nil && trace.GotConn != nil { trace.GotConn(httptrace.GotConnInfo{ Conn: netConn, }) } - if err != nil { - return nil, nil, err - } defer func() { if netConn != nil { - netConn.Close() + if err := netConn.Close(); err != nil { + log.Printf("websocket: failed to close network connection: %v", err) + } } }() @@ -370,6 +379,17 @@ func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader h resp, err := http.ReadResponse(conn.br, req) if err != nil { + if d.TLSClientConfig != nil { + for _, proto := range d.TLSClientConfig.NextProtos { + if proto != "http/1.1" { + return nil, nil, fmt.Errorf( + "websocket: protocol %q was given but is not supported;"+ + "sharing tls.Config with net/http Transport can cause this error: %w", + proto, err, + ) + } + } + } return nil, nil, err } @@ -388,7 +408,7 @@ func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader h // debugging. buf := make([]byte, 1024) n, _ := io.ReadFull(resp.Body, buf) - resp.Body = ioutil.NopCloser(bytes.NewReader(buf[:n])) + resp.Body = io.NopCloser(bytes.NewReader(buf[:n])) return nil, resp, ErrBadHandshake } @@ -406,17 +426,19 @@ func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader h break } - resp.Body = ioutil.NopCloser(bytes.NewReader([]byte{})) + resp.Body = io.NopCloser(bytes.NewReader([]byte{})) conn.subprotocol = resp.Header.Get("Sec-Websocket-Protocol") - netConn.SetDeadline(time.Time{}) + if err := netConn.SetDeadline(time.Time{}); err != nil { + return nil, nil, err + } netConn = nil // to avoid close in defer. return conn, resp, nil } func cloneTLSConfig(cfg *tls.Config) *tls.Config { if cfg == nil { - return &tls.Config{} + return &tls.Config{MinVersion: tls.VersionTLS12} } return cfg.Clone() } diff --git a/vendor/github.com/gorilla/websocket/compression.go b/vendor/github.com/gorilla/websocket/compression.go index 813ffb1e8..9fed0ef52 100644 --- a/vendor/github.com/gorilla/websocket/compression.go +++ b/vendor/github.com/gorilla/websocket/compression.go @@ -8,6 +8,7 @@ import ( "compress/flate" "errors" "io" + "log" "strings" "sync" ) @@ -33,7 +34,9 @@ func decompressNoContextTakeover(r io.Reader) io.ReadCloser { "\x01\x00\x00\xff\xff" fr, _ := flateReaderPool.Get().(io.ReadCloser) - fr.(flate.Resetter).Reset(io.MultiReader(r, strings.NewReader(tail)), nil) + if err := fr.(flate.Resetter).Reset(io.MultiReader(r, strings.NewReader(tail)), nil); err != nil { + panic(err) + } return &flateReadWrapper{fr} } @@ -132,7 +135,9 @@ func (r *flateReadWrapper) Read(p []byte) (int, error) { // Preemptively place the reader back in the pool. This helps with // scenarios where the application does not call NextReader() soon after // this final read. - r.Close() + if err := r.Close(); err != nil { + log.Printf("websocket: flateReadWrapper.Close() returned error: %v", err) + } } return n, err } diff --git a/vendor/github.com/gorilla/websocket/conn.go b/vendor/github.com/gorilla/websocket/conn.go index 331eebc85..221e6cf79 100644 --- a/vendor/github.com/gorilla/websocket/conn.go +++ b/vendor/github.com/gorilla/websocket/conn.go @@ -6,11 +6,11 @@ package websocket import ( "bufio" + "crypto/rand" "encoding/binary" "errors" "io" - "io/ioutil" - "math/rand" + "log" "net" "strconv" "strings" @@ -181,13 +181,20 @@ var ( errInvalidControlFrame = errors.New("websocket: invalid control frame") ) +// maskRand is an io.Reader for generating mask bytes. The reader is initialized +// to crypto/rand Reader. Tests swap the reader to a math/rand reader for +// reproducible results. +var maskRand = rand.Reader + +// newMaskKey returns a new 32 bit value for masking client frames. func newMaskKey() [4]byte { - n := rand.Uint32() - return [4]byte{byte(n), byte(n >> 8), byte(n >> 16), byte(n >> 24)} + var k [4]byte + _, _ = io.ReadFull(maskRand, k[:]) + return k } func hideTempErr(err error) error { - if e, ok := err.(net.Error); ok && e.Temporary() { + if e, ok := err.(net.Error); ok { err = &netError{msg: e.Error(), timeout: e.Timeout()} } return err @@ -372,7 +379,9 @@ func (c *Conn) read(n int) ([]byte, error) { if err == io.EOF { err = errUnexpectedEOF } - c.br.Discard(len(p)) + if _, err := c.br.Discard(len(p)); err != nil { + return p, err + } return p, err } @@ -387,7 +396,9 @@ func (c *Conn) write(frameType int, deadline time.Time, buf0, buf1 []byte) error return err } - c.conn.SetWriteDeadline(deadline) + if err := c.conn.SetWriteDeadline(deadline); err != nil { + return c.writeFatal(err) + } if len(buf1) == 0 { _, err = c.conn.Write(buf0) } else { @@ -397,7 +408,7 @@ func (c *Conn) write(frameType int, deadline time.Time, buf0, buf1 []byte) error return c.writeFatal(err) } if frameType == CloseMessage { - c.writeFatal(ErrCloseSent) + _ = c.writeFatal(ErrCloseSent) } return nil } @@ -438,7 +449,7 @@ func (c *Conn) WriteControl(messageType int, data []byte, deadline time.Time) er d := 1000 * time.Hour if !deadline.IsZero() { - d = deadline.Sub(time.Now()) + d = time.Until(deadline) if d < 0 { return errWriteTimeout } @@ -460,13 +471,15 @@ func (c *Conn) WriteControl(messageType int, data []byte, deadline time.Time) er return err } - c.conn.SetWriteDeadline(deadline) + if err := c.conn.SetWriteDeadline(deadline); err != nil { + return c.writeFatal(err) + } _, err = c.conn.Write(buf) if err != nil { return c.writeFatal(err) } if messageType == CloseMessage { - c.writeFatal(ErrCloseSent) + _ = c.writeFatal(ErrCloseSent) } return err } @@ -477,7 +490,9 @@ func (c *Conn) beginMessage(mw *messageWriter, messageType int) error { // probably better to return an error in this situation, but we cannot // change this without breaking existing applications. if c.writer != nil { - c.writer.Close() + if err := c.writer.Close(); err != nil { + log.Printf("websocket: discarding writer close error: %v", err) + } c.writer = nil } @@ -630,7 +645,7 @@ func (w *messageWriter) flushFrame(final bool, extra []byte) error { } if final { - w.endMessage(errWriteClosed) + _ = w.endMessage(errWriteClosed) return nil } @@ -795,7 +810,7 @@ func (c *Conn) advanceFrame() (int, error) { // 1. Skip remainder of previous frame. if c.readRemaining > 0 { - if _, err := io.CopyN(ioutil.Discard, c.br, c.readRemaining); err != nil { + if _, err := io.CopyN(io.Discard, c.br, c.readRemaining); err != nil { return noFrame, err } } @@ -817,7 +832,9 @@ func (c *Conn) advanceFrame() (int, error) { rsv2 := p[0]&rsv2Bit != 0 rsv3 := p[0]&rsv3Bit != 0 mask := p[1]&maskBit != 0 - c.setReadRemaining(int64(p[1] & 0x7f)) + if err := c.setReadRemaining(int64(p[1] & 0x7f)); err != nil { + return noFrame, err + } c.readDecompress = false if rsv1 { @@ -922,7 +939,9 @@ func (c *Conn) advanceFrame() (int, error) { } if c.readLimit > 0 && c.readLength > c.readLimit { - c.WriteControl(CloseMessage, FormatCloseMessage(CloseMessageTooBig, ""), time.Now().Add(writeWait)) + if err := c.WriteControl(CloseMessage, FormatCloseMessage(CloseMessageTooBig, ""), time.Now().Add(writeWait)); err != nil { + return noFrame, err + } return noFrame, ErrReadLimit } @@ -934,7 +953,9 @@ func (c *Conn) advanceFrame() (int, error) { var payload []byte if c.readRemaining > 0 { payload, err = c.read(int(c.readRemaining)) - c.setReadRemaining(0) + if err := c.setReadRemaining(0); err != nil { + return noFrame, err + } if err != nil { return noFrame, err } @@ -981,7 +1002,9 @@ func (c *Conn) handleProtocolError(message string) error { if len(data) > maxControlFramePayloadSize { data = data[:maxControlFramePayloadSize] } - c.WriteControl(CloseMessage, data, time.Now().Add(writeWait)) + if err := c.WriteControl(CloseMessage, data, time.Now().Add(writeWait)); err != nil { + return err + } return errors.New("websocket: " + message) } @@ -998,7 +1021,9 @@ func (c *Conn) handleProtocolError(message string) error { func (c *Conn) NextReader() (messageType int, r io.Reader, err error) { // Close previous reader, only relevant for decompression. if c.reader != nil { - c.reader.Close() + if err := c.reader.Close(); err != nil { + log.Printf("websocket: discarding reader close error: %v", err) + } c.reader = nil } @@ -1054,7 +1079,9 @@ func (r *messageReader) Read(b []byte) (int, error) { } rem := c.readRemaining rem -= int64(n) - c.setReadRemaining(rem) + if err := c.setReadRemaining(rem); err != nil { + return 0, err + } if c.readRemaining > 0 && c.readErr == io.EOF { c.readErr = errUnexpectedEOF } @@ -1094,7 +1121,7 @@ func (c *Conn) ReadMessage() (messageType int, p []byte, err error) { if err != nil { return messageType, nil, err } - p, err = ioutil.ReadAll(r) + p, err = io.ReadAll(r) return messageType, p, err } @@ -1136,7 +1163,9 @@ func (c *Conn) SetCloseHandler(h func(code int, text string) error) { if h == nil { h = func(code int, text string) error { message := FormatCloseMessage(code, "") - c.WriteControl(CloseMessage, message, time.Now().Add(writeWait)) + if err := c.WriteControl(CloseMessage, message, time.Now().Add(writeWait)); err != nil { + return err + } return nil } } @@ -1161,7 +1190,7 @@ func (c *Conn) SetPingHandler(h func(appData string) error) { err := c.WriteControl(PongMessage, []byte(message), time.Now().Add(writeWait)) if err == ErrCloseSent { return nil - } else if e, ok := err.(net.Error); ok && e.Temporary() { + } else if _, ok := err.(net.Error); ok { return nil } return err @@ -1189,8 +1218,16 @@ func (c *Conn) SetPongHandler(h func(appData string) error) { c.handlePong = h } +// NetConn returns the underlying connection that is wrapped by c. +// Note that writing to or reading from this connection directly will corrupt the +// WebSocket connection. +func (c *Conn) NetConn() net.Conn { + return c.conn +} + // UnderlyingConn returns the internal net.Conn. This can be used to further // modifications to connection specific flags. +// Deprecated: Use the NetConn method. func (c *Conn) UnderlyingConn() net.Conn { return c.conn } diff --git a/vendor/github.com/gorilla/websocket/mask.go b/vendor/github.com/gorilla/websocket/mask.go index d0742bf2a..67d0968be 100644 --- a/vendor/github.com/gorilla/websocket/mask.go +++ b/vendor/github.com/gorilla/websocket/mask.go @@ -9,6 +9,7 @@ package websocket import "unsafe" +// #nosec G103 -- (CWE-242) Has been audited const wordSize = int(unsafe.Sizeof(uintptr(0))) func maskBytes(key [4]byte, pos int, b []byte) int { @@ -22,6 +23,7 @@ func maskBytes(key [4]byte, pos int, b []byte) int { } // Mask one byte at a time to word boundary. + //#nosec G103 -- (CWE-242) Has been audited if n := int(uintptr(unsafe.Pointer(&b[0]))) % wordSize; n != 0 { n = wordSize - n for i := range b[:n] { @@ -36,11 +38,13 @@ func maskBytes(key [4]byte, pos int, b []byte) int { for i := range k { k[i] = key[(pos+i)&3] } + //#nosec G103 -- (CWE-242) Has been audited kw := *(*uintptr)(unsafe.Pointer(&k)) // Mask one word at a time. n := (len(b) / wordSize) * wordSize for i := 0; i < n; i += wordSize { + //#nosec G103 -- (CWE-242) Has been audited *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&b[0])) + uintptr(i))) ^= kw } diff --git a/vendor/github.com/gorilla/websocket/proxy.go b/vendor/github.com/gorilla/websocket/proxy.go index e0f466b72..80f55d1ea 100644 --- a/vendor/github.com/gorilla/websocket/proxy.go +++ b/vendor/github.com/gorilla/websocket/proxy.go @@ -8,10 +8,13 @@ import ( "bufio" "encoding/base64" "errors" + "log" "net" "net/http" "net/url" "strings" + + "golang.org/x/net/proxy" ) type netDialerFunc func(network, addr string) (net.Conn, error) @@ -21,7 +24,7 @@ func (fn netDialerFunc) Dial(network, addr string) (net.Conn, error) { } func init() { - proxy_RegisterDialerType("http", func(proxyURL *url.URL, forwardDialer proxy_Dialer) (proxy_Dialer, error) { + proxy.RegisterDialerType("http", func(proxyURL *url.URL, forwardDialer proxy.Dialer) (proxy.Dialer, error) { return &httpProxyDialer{proxyURL: proxyURL, forwardDial: forwardDialer.Dial}, nil }) } @@ -55,7 +58,9 @@ func (hpd *httpProxyDialer) Dial(network string, addr string) (net.Conn, error) } if err := connectReq.Write(conn); err != nil { - conn.Close() + if err := conn.Close(); err != nil { + log.Printf("httpProxyDialer: failed to close connection: %v", err) + } return nil, err } @@ -64,12 +69,16 @@ func (hpd *httpProxyDialer) Dial(network string, addr string) (net.Conn, error) br := bufio.NewReader(conn) resp, err := http.ReadResponse(br, connectReq) if err != nil { - conn.Close() + if err := conn.Close(); err != nil { + log.Printf("httpProxyDialer: failed to close connection: %v", err) + } return nil, err } if resp.StatusCode != 200 { - conn.Close() + if err := conn.Close(); err != nil { + log.Printf("httpProxyDialer: failed to close connection: %v", err) + } f := strings.SplitN(resp.Status, " ", 2) return nil, errors.New(f[1]) } diff --git a/vendor/github.com/gorilla/websocket/server.go b/vendor/github.com/gorilla/websocket/server.go index 24d53b38a..1e720e1da 100644 --- a/vendor/github.com/gorilla/websocket/server.go +++ b/vendor/github.com/gorilla/websocket/server.go @@ -8,6 +8,7 @@ import ( "bufio" "errors" "io" + "log" "net/http" "net/url" "strings" @@ -154,8 +155,8 @@ func (u *Upgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeade } challengeKey := r.Header.Get("Sec-Websocket-Key") - if challengeKey == "" { - return u.returnError(w, r, http.StatusBadRequest, "websocket: not a websocket handshake: 'Sec-WebSocket-Key' header is missing or blank") + if !isValidChallengeKey(challengeKey) { + return u.returnError(w, r, http.StatusBadRequest, "websocket: not a websocket handshake: 'Sec-WebSocket-Key' header must be Base64 encoded value of 16-byte in length") } subprotocol := u.selectSubprotocol(r, responseHeader) @@ -183,7 +184,9 @@ func (u *Upgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeade } if brw.Reader.Buffered() > 0 { - netConn.Close() + if err := netConn.Close(); err != nil { + log.Printf("websocket: failed to close network connection: %v", err) + } return nil, errors.New("websocket: client sent data before handshake is complete") } @@ -248,17 +251,34 @@ func (u *Upgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeade p = append(p, "\r\n"...) // Clear deadlines set by HTTP server. - netConn.SetDeadline(time.Time{}) + if err := netConn.SetDeadline(time.Time{}); err != nil { + if err := netConn.Close(); err != nil { + log.Printf("websocket: failed to close network connection: %v", err) + } + return nil, err + } if u.HandshakeTimeout > 0 { - netConn.SetWriteDeadline(time.Now().Add(u.HandshakeTimeout)) + if err := netConn.SetWriteDeadline(time.Now().Add(u.HandshakeTimeout)); err != nil { + if err := netConn.Close(); err != nil { + log.Printf("websocket: failed to close network connection: %v", err) + } + return nil, err + } } if _, err = netConn.Write(p); err != nil { - netConn.Close() + if err := netConn.Close(); err != nil { + log.Printf("websocket: failed to close network connection: %v", err) + } return nil, err } if u.HandshakeTimeout > 0 { - netConn.SetWriteDeadline(time.Time{}) + if err := netConn.SetWriteDeadline(time.Time{}); err != nil { + if err := netConn.Close(); err != nil { + log.Printf("websocket: failed to close network connection: %v", err) + } + return nil, err + } } return c, nil @@ -356,8 +376,12 @@ func bufioWriterBuffer(originalWriter io.Writer, bw *bufio.Writer) []byte { // bufio.Writer's underlying writer. var wh writeHook bw.Reset(&wh) - bw.WriteByte(0) - bw.Flush() + if err := bw.WriteByte(0); err != nil { + panic(err) + } + if err := bw.Flush(); err != nil { + log.Printf("websocket: bufioWriterBuffer: Flush: %v", err) + } bw.Reset(originalWriter) diff --git a/vendor/github.com/gorilla/websocket/tls_handshake.go b/vendor/github.com/gorilla/websocket/tls_handshake.go index a62b68ccb..7f3864534 100644 --- a/vendor/github.com/gorilla/websocket/tls_handshake.go +++ b/vendor/github.com/gorilla/websocket/tls_handshake.go @@ -1,6 +1,3 @@ -//go:build go1.17 -// +build go1.17 - package websocket import ( diff --git a/vendor/github.com/gorilla/websocket/tls_handshake_116.go b/vendor/github.com/gorilla/websocket/tls_handshake_116.go deleted file mode 100644 index e1b2b44f6..000000000 --- a/vendor/github.com/gorilla/websocket/tls_handshake_116.go +++ /dev/null @@ -1,21 +0,0 @@ -//go:build !go1.17 -// +build !go1.17 - -package websocket - -import ( - "context" - "crypto/tls" -) - -func doHandshake(ctx context.Context, tlsConn *tls.Conn, cfg *tls.Config) error { - if err := tlsConn.Handshake(); err != nil { - return err - } - if !cfg.InsecureSkipVerify { - if err := tlsConn.VerifyHostname(cfg.ServerName); err != nil { - return err - } - } - return nil -} diff --git a/vendor/github.com/gorilla/websocket/util.go b/vendor/github.com/gorilla/websocket/util.go index 7bf2f66c6..9b1a629bf 100644 --- a/vendor/github.com/gorilla/websocket/util.go +++ b/vendor/github.com/gorilla/websocket/util.go @@ -6,7 +6,7 @@ package websocket import ( "crypto/rand" - "crypto/sha1" + "crypto/sha1" //#nosec G505 -- (CWE-327) https://datatracker.ietf.org/doc/html/rfc6455#page-54 "encoding/base64" "io" "net/http" @@ -17,7 +17,7 @@ import ( var keyGUID = []byte("258EAFA5-E914-47DA-95CA-C5AB0DC85B11") func computeAcceptKey(challengeKey string) string { - h := sha1.New() + h := sha1.New() //#nosec G401 -- (CWE-326) https://datatracker.ietf.org/doc/html/rfc6455#page-54 h.Write([]byte(challengeKey)) h.Write(keyGUID) return base64.StdEncoding.EncodeToString(h.Sum(nil)) @@ -281,3 +281,18 @@ headers: } return result } + +// isValidChallengeKey checks if the argument meets RFC6455 specification. +func isValidChallengeKey(s string) bool { + // From RFC6455: + // + // A |Sec-WebSocket-Key| header field with a base64-encoded (see + // Section 4 of [RFC4648]) value that, when decoded, is 16 bytes in + // length. + + if s == "" { + return false + } + decoded, err := base64.StdEncoding.DecodeString(s) + return err == nil && len(decoded) == 16 +} diff --git a/vendor/github.com/gorilla/websocket/x_net_proxy.go b/vendor/github.com/gorilla/websocket/x_net_proxy.go deleted file mode 100644 index 2e668f6b8..000000000 --- a/vendor/github.com/gorilla/websocket/x_net_proxy.go +++ /dev/null @@ -1,473 +0,0 @@ -// Code generated by golang.org/x/tools/cmd/bundle. DO NOT EDIT. -//go:generate bundle -o x_net_proxy.go golang.org/x/net/proxy - -// Package proxy provides support for a variety of protocols to proxy network -// data. -// - -package websocket - -import ( - "errors" - "io" - "net" - "net/url" - "os" - "strconv" - "strings" - "sync" -) - -type proxy_direct struct{} - -// Direct is a direct proxy: one that makes network connections directly. -var proxy_Direct = proxy_direct{} - -func (proxy_direct) Dial(network, addr string) (net.Conn, error) { - return net.Dial(network, addr) -} - -// A PerHost directs connections to a default Dialer unless the host name -// requested matches one of a number of exceptions. -type proxy_PerHost struct { - def, bypass proxy_Dialer - - bypassNetworks []*net.IPNet - bypassIPs []net.IP - bypassZones []string - bypassHosts []string -} - -// NewPerHost returns a PerHost Dialer that directs connections to either -// defaultDialer or bypass, depending on whether the connection matches one of -// the configured rules. -func proxy_NewPerHost(defaultDialer, bypass proxy_Dialer) *proxy_PerHost { - return &proxy_PerHost{ - def: defaultDialer, - bypass: bypass, - } -} - -// Dial connects to the address addr on the given network through either -// defaultDialer or bypass. -func (p *proxy_PerHost) Dial(network, addr string) (c net.Conn, err error) { - host, _, err := net.SplitHostPort(addr) - if err != nil { - return nil, err - } - - return p.dialerForRequest(host).Dial(network, addr) -} - -func (p *proxy_PerHost) dialerForRequest(host string) proxy_Dialer { - if ip := net.ParseIP(host); ip != nil { - for _, net := range p.bypassNetworks { - if net.Contains(ip) { - return p.bypass - } - } - for _, bypassIP := range p.bypassIPs { - if bypassIP.Equal(ip) { - return p.bypass - } - } - return p.def - } - - for _, zone := range p.bypassZones { - if strings.HasSuffix(host, zone) { - return p.bypass - } - if host == zone[1:] { - // For a zone ".example.com", we match "example.com" - // too. - return p.bypass - } - } - for _, bypassHost := range p.bypassHosts { - if bypassHost == host { - return p.bypass - } - } - return p.def -} - -// AddFromString parses a string that contains comma-separated values -// specifying hosts that should use the bypass proxy. Each value is either an -// IP address, a CIDR range, a zone (*.example.com) or a host name -// (localhost). A best effort is made to parse the string and errors are -// ignored. -func (p *proxy_PerHost) AddFromString(s string) { - hosts := strings.Split(s, ",") - for _, host := range hosts { - host = strings.TrimSpace(host) - if len(host) == 0 { - continue - } - if strings.Contains(host, "/") { - // We assume that it's a CIDR address like 127.0.0.0/8 - if _, net, err := net.ParseCIDR(host); err == nil { - p.AddNetwork(net) - } - continue - } - if ip := net.ParseIP(host); ip != nil { - p.AddIP(ip) - continue - } - if strings.HasPrefix(host, "*.") { - p.AddZone(host[1:]) - continue - } - p.AddHost(host) - } -} - -// AddIP specifies an IP address that will use the bypass proxy. Note that -// this will only take effect if a literal IP address is dialed. A connection -// to a named host will never match an IP. -func (p *proxy_PerHost) AddIP(ip net.IP) { - p.bypassIPs = append(p.bypassIPs, ip) -} - -// AddNetwork specifies an IP range that will use the bypass proxy. Note that -// this will only take effect if a literal IP address is dialed. A connection -// to a named host will never match. -func (p *proxy_PerHost) AddNetwork(net *net.IPNet) { - p.bypassNetworks = append(p.bypassNetworks, net) -} - -// AddZone specifies a DNS suffix that will use the bypass proxy. A zone of -// "example.com" matches "example.com" and all of its subdomains. -func (p *proxy_PerHost) AddZone(zone string) { - if strings.HasSuffix(zone, ".") { - zone = zone[:len(zone)-1] - } - if !strings.HasPrefix(zone, ".") { - zone = "." + zone - } - p.bypassZones = append(p.bypassZones, zone) -} - -// AddHost specifies a host name that will use the bypass proxy. -func (p *proxy_PerHost) AddHost(host string) { - if strings.HasSuffix(host, ".") { - host = host[:len(host)-1] - } - p.bypassHosts = append(p.bypassHosts, host) -} - -// A Dialer is a means to establish a connection. -type proxy_Dialer interface { - // Dial connects to the given address via the proxy. - Dial(network, addr string) (c net.Conn, err error) -} - -// Auth contains authentication parameters that specific Dialers may require. -type proxy_Auth struct { - User, Password string -} - -// FromEnvironment returns the dialer specified by the proxy related variables in -// the environment. -func proxy_FromEnvironment() proxy_Dialer { - allProxy := proxy_allProxyEnv.Get() - if len(allProxy) == 0 { - return proxy_Direct - } - - proxyURL, err := url.Parse(allProxy) - if err != nil { - return proxy_Direct - } - proxy, err := proxy_FromURL(proxyURL, proxy_Direct) - if err != nil { - return proxy_Direct - } - - noProxy := proxy_noProxyEnv.Get() - if len(noProxy) == 0 { - return proxy - } - - perHost := proxy_NewPerHost(proxy, proxy_Direct) - perHost.AddFromString(noProxy) - return perHost -} - -// proxySchemes is a map from URL schemes to a function that creates a Dialer -// from a URL with such a scheme. -var proxy_proxySchemes map[string]func(*url.URL, proxy_Dialer) (proxy_Dialer, error) - -// RegisterDialerType takes a URL scheme and a function to generate Dialers from -// a URL with that scheme and a forwarding Dialer. Registered schemes are used -// by FromURL. -func proxy_RegisterDialerType(scheme string, f func(*url.URL, proxy_Dialer) (proxy_Dialer, error)) { - if proxy_proxySchemes == nil { - proxy_proxySchemes = make(map[string]func(*url.URL, proxy_Dialer) (proxy_Dialer, error)) - } - proxy_proxySchemes[scheme] = f -} - -// FromURL returns a Dialer given a URL specification and an underlying -// Dialer for it to make network requests. -func proxy_FromURL(u *url.URL, forward proxy_Dialer) (proxy_Dialer, error) { - var auth *proxy_Auth - if u.User != nil { - auth = new(proxy_Auth) - auth.User = u.User.Username() - if p, ok := u.User.Password(); ok { - auth.Password = p - } - } - - switch u.Scheme { - case "socks5": - return proxy_SOCKS5("tcp", u.Host, auth, forward) - } - - // If the scheme doesn't match any of the built-in schemes, see if it - // was registered by another package. - if proxy_proxySchemes != nil { - if f, ok := proxy_proxySchemes[u.Scheme]; ok { - return f(u, forward) - } - } - - return nil, errors.New("proxy: unknown scheme: " + u.Scheme) -} - -var ( - proxy_allProxyEnv = &proxy_envOnce{ - names: []string{"ALL_PROXY", "all_proxy"}, - } - proxy_noProxyEnv = &proxy_envOnce{ - names: []string{"NO_PROXY", "no_proxy"}, - } -) - -// envOnce looks up an environment variable (optionally by multiple -// names) once. It mitigates expensive lookups on some platforms -// (e.g. Windows). -// (Borrowed from net/http/transport.go) -type proxy_envOnce struct { - names []string - once sync.Once - val string -} - -func (e *proxy_envOnce) Get() string { - e.once.Do(e.init) - return e.val -} - -func (e *proxy_envOnce) init() { - for _, n := range e.names { - e.val = os.Getenv(n) - if e.val != "" { - return - } - } -} - -// SOCKS5 returns a Dialer that makes SOCKSv5 connections to the given address -// with an optional username and password. See RFC 1928 and RFC 1929. -func proxy_SOCKS5(network, addr string, auth *proxy_Auth, forward proxy_Dialer) (proxy_Dialer, error) { - s := &proxy_socks5{ - network: network, - addr: addr, - forward: forward, - } - if auth != nil { - s.user = auth.User - s.password = auth.Password - } - - return s, nil -} - -type proxy_socks5 struct { - user, password string - network, addr string - forward proxy_Dialer -} - -const proxy_socks5Version = 5 - -const ( - proxy_socks5AuthNone = 0 - proxy_socks5AuthPassword = 2 -) - -const proxy_socks5Connect = 1 - -const ( - proxy_socks5IP4 = 1 - proxy_socks5Domain = 3 - proxy_socks5IP6 = 4 -) - -var proxy_socks5Errors = []string{ - "", - "general failure", - "connection forbidden", - "network unreachable", - "host unreachable", - "connection refused", - "TTL expired", - "command not supported", - "address type not supported", -} - -// Dial connects to the address addr on the given network via the SOCKS5 proxy. -func (s *proxy_socks5) Dial(network, addr string) (net.Conn, error) { - switch network { - case "tcp", "tcp6", "tcp4": - default: - return nil, errors.New("proxy: no support for SOCKS5 proxy connections of type " + network) - } - - conn, err := s.forward.Dial(s.network, s.addr) - if err != nil { - return nil, err - } - if err := s.connect(conn, addr); err != nil { - conn.Close() - return nil, err - } - return conn, nil -} - -// connect takes an existing connection to a socks5 proxy server, -// and commands the server to extend that connection to target, -// which must be a canonical address with a host and port. -func (s *proxy_socks5) connect(conn net.Conn, target string) error { - host, portStr, err := net.SplitHostPort(target) - if err != nil { - return err - } - - port, err := strconv.Atoi(portStr) - if err != nil { - return errors.New("proxy: failed to parse port number: " + portStr) - } - if port < 1 || port > 0xffff { - return errors.New("proxy: port number out of range: " + portStr) - } - - // the size here is just an estimate - buf := make([]byte, 0, 6+len(host)) - - buf = append(buf, proxy_socks5Version) - if len(s.user) > 0 && len(s.user) < 256 && len(s.password) < 256 { - buf = append(buf, 2 /* num auth methods */, proxy_socks5AuthNone, proxy_socks5AuthPassword) - } else { - buf = append(buf, 1 /* num auth methods */, proxy_socks5AuthNone) - } - - if _, err := conn.Write(buf); err != nil { - return errors.New("proxy: failed to write greeting to SOCKS5 proxy at " + s.addr + ": " + err.Error()) - } - - if _, err := io.ReadFull(conn, buf[:2]); err != nil { - return errors.New("proxy: failed to read greeting from SOCKS5 proxy at " + s.addr + ": " + err.Error()) - } - if buf[0] != 5 { - return errors.New("proxy: SOCKS5 proxy at " + s.addr + " has unexpected version " + strconv.Itoa(int(buf[0]))) - } - if buf[1] == 0xff { - return errors.New("proxy: SOCKS5 proxy at " + s.addr + " requires authentication") - } - - // See RFC 1929 - if buf[1] == proxy_socks5AuthPassword { - buf = buf[:0] - buf = append(buf, 1 /* password protocol version */) - buf = append(buf, uint8(len(s.user))) - buf = append(buf, s.user...) - buf = append(buf, uint8(len(s.password))) - buf = append(buf, s.password...) - - if _, err := conn.Write(buf); err != nil { - return errors.New("proxy: failed to write authentication request to SOCKS5 proxy at " + s.addr + ": " + err.Error()) - } - - if _, err := io.ReadFull(conn, buf[:2]); err != nil { - return errors.New("proxy: failed to read authentication reply from SOCKS5 proxy at " + s.addr + ": " + err.Error()) - } - - if buf[1] != 0 { - return errors.New("proxy: SOCKS5 proxy at " + s.addr + " rejected username/password") - } - } - - buf = buf[:0] - buf = append(buf, proxy_socks5Version, proxy_socks5Connect, 0 /* reserved */) - - if ip := net.ParseIP(host); ip != nil { - if ip4 := ip.To4(); ip4 != nil { - buf = append(buf, proxy_socks5IP4) - ip = ip4 - } else { - buf = append(buf, proxy_socks5IP6) - } - buf = append(buf, ip...) - } else { - if len(host) > 255 { - return errors.New("proxy: destination host name too long: " + host) - } - buf = append(buf, proxy_socks5Domain) - buf = append(buf, byte(len(host))) - buf = append(buf, host...) - } - buf = append(buf, byte(port>>8), byte(port)) - - if _, err := conn.Write(buf); err != nil { - return errors.New("proxy: failed to write connect request to SOCKS5 proxy at " + s.addr + ": " + err.Error()) - } - - if _, err := io.ReadFull(conn, buf[:4]); err != nil { - return errors.New("proxy: failed to read connect reply from SOCKS5 proxy at " + s.addr + ": " + err.Error()) - } - - failure := "unknown error" - if int(buf[1]) < len(proxy_socks5Errors) { - failure = proxy_socks5Errors[buf[1]] - } - - if len(failure) > 0 { - return errors.New("proxy: SOCKS5 proxy at " + s.addr + " failed to connect: " + failure) - } - - bytesToDiscard := 0 - switch buf[3] { - case proxy_socks5IP4: - bytesToDiscard = net.IPv4len - case proxy_socks5IP6: - bytesToDiscard = net.IPv6len - case proxy_socks5Domain: - _, err := io.ReadFull(conn, buf[:1]) - if err != nil { - return errors.New("proxy: failed to read domain length from SOCKS5 proxy at " + s.addr + ": " + err.Error()) - } - bytesToDiscard = int(buf[0]) - default: - return errors.New("proxy: got unknown address type " + strconv.Itoa(int(buf[3])) + " from SOCKS5 proxy at " + s.addr) - } - - if cap(buf) < bytesToDiscard { - buf = make([]byte, bytesToDiscard) - } else { - buf = buf[:bytesToDiscard] - } - if _, err := io.ReadFull(conn, buf); err != nil { - return errors.New("proxy: failed to read address from SOCKS5 proxy at " + s.addr + ": " + err.Error()) - } - - // Also need to discard the port number - if _, err := io.ReadFull(conn, buf[:2]); err != nil { - return errors.New("proxy: failed to read port from SOCKS5 proxy at " + s.addr + ": " + err.Error()) - } - - return nil -} diff --git a/vendor/golang.org/x/net/internal/socks/client.go b/vendor/golang.org/x/net/internal/socks/client.go new file mode 100644 index 000000000..3d6f516a5 --- /dev/null +++ b/vendor/golang.org/x/net/internal/socks/client.go @@ -0,0 +1,168 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package socks + +import ( + "context" + "errors" + "io" + "net" + "strconv" + "time" +) + +var ( + noDeadline = time.Time{} + aLongTimeAgo = time.Unix(1, 0) +) + +func (d *Dialer) connect(ctx context.Context, c net.Conn, address string) (_ net.Addr, ctxErr error) { + host, port, err := splitHostPort(address) + if err != nil { + return nil, err + } + if deadline, ok := ctx.Deadline(); ok && !deadline.IsZero() { + c.SetDeadline(deadline) + defer c.SetDeadline(noDeadline) + } + if ctx != context.Background() { + errCh := make(chan error, 1) + done := make(chan struct{}) + defer func() { + close(done) + if ctxErr == nil { + ctxErr = <-errCh + } + }() + go func() { + select { + case <-ctx.Done(): + c.SetDeadline(aLongTimeAgo) + errCh <- ctx.Err() + case <-done: + errCh <- nil + } + }() + } + + b := make([]byte, 0, 6+len(host)) // the size here is just an estimate + b = append(b, Version5) + if len(d.AuthMethods) == 0 || d.Authenticate == nil { + b = append(b, 1, byte(AuthMethodNotRequired)) + } else { + ams := d.AuthMethods + if len(ams) > 255 { + return nil, errors.New("too many authentication methods") + } + b = append(b, byte(len(ams))) + for _, am := range ams { + b = append(b, byte(am)) + } + } + if _, ctxErr = c.Write(b); ctxErr != nil { + return + } + + if _, ctxErr = io.ReadFull(c, b[:2]); ctxErr != nil { + return + } + if b[0] != Version5 { + return nil, errors.New("unexpected protocol version " + strconv.Itoa(int(b[0]))) + } + am := AuthMethod(b[1]) + if am == AuthMethodNoAcceptableMethods { + return nil, errors.New("no acceptable authentication methods") + } + if d.Authenticate != nil { + if ctxErr = d.Authenticate(ctx, c, am); ctxErr != nil { + return + } + } + + b = b[:0] + b = append(b, Version5, byte(d.cmd), 0) + if ip := net.ParseIP(host); ip != nil { + if ip4 := ip.To4(); ip4 != nil { + b = append(b, AddrTypeIPv4) + b = append(b, ip4...) + } else if ip6 := ip.To16(); ip6 != nil { + b = append(b, AddrTypeIPv6) + b = append(b, ip6...) + } else { + return nil, errors.New("unknown address type") + } + } else { + if len(host) > 255 { + return nil, errors.New("FQDN too long") + } + b = append(b, AddrTypeFQDN) + b = append(b, byte(len(host))) + b = append(b, host...) + } + b = append(b, byte(port>>8), byte(port)) + if _, ctxErr = c.Write(b); ctxErr != nil { + return + } + + if _, ctxErr = io.ReadFull(c, b[:4]); ctxErr != nil { + return + } + if b[0] != Version5 { + return nil, errors.New("unexpected protocol version " + strconv.Itoa(int(b[0]))) + } + if cmdErr := Reply(b[1]); cmdErr != StatusSucceeded { + return nil, errors.New("unknown error " + cmdErr.String()) + } + if b[2] != 0 { + return nil, errors.New("non-zero reserved field") + } + l := 2 + var a Addr + switch b[3] { + case AddrTypeIPv4: + l += net.IPv4len + a.IP = make(net.IP, net.IPv4len) + case AddrTypeIPv6: + l += net.IPv6len + a.IP = make(net.IP, net.IPv6len) + case AddrTypeFQDN: + if _, err := io.ReadFull(c, b[:1]); err != nil { + return nil, err + } + l += int(b[0]) + default: + return nil, errors.New("unknown address type " + strconv.Itoa(int(b[3]))) + } + if cap(b) < l { + b = make([]byte, l) + } else { + b = b[:l] + } + if _, ctxErr = io.ReadFull(c, b); ctxErr != nil { + return + } + if a.IP != nil { + copy(a.IP, b) + } else { + a.Name = string(b[:len(b)-2]) + } + a.Port = int(b[len(b)-2])<<8 | int(b[len(b)-1]) + return &a, nil +} + +func splitHostPort(address string) (string, int, error) { + host, port, err := net.SplitHostPort(address) + if err != nil { + return "", 0, err + } + portnum, err := strconv.Atoi(port) + if err != nil { + return "", 0, err + } + if 1 > portnum || portnum > 0xffff { + return "", 0, errors.New("port number out of range " + port) + } + return host, portnum, nil +} diff --git a/vendor/golang.org/x/net/internal/socks/socks.go b/vendor/golang.org/x/net/internal/socks/socks.go new file mode 100644 index 000000000..84fcc32b6 --- /dev/null +++ b/vendor/golang.org/x/net/internal/socks/socks.go @@ -0,0 +1,317 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package socks provides a SOCKS version 5 client implementation. +// +// SOCKS protocol version 5 is defined in RFC 1928. +// Username/Password authentication for SOCKS version 5 is defined in +// RFC 1929. +package socks + +import ( + "context" + "errors" + "io" + "net" + "strconv" +) + +// A Command represents a SOCKS command. +type Command int + +func (cmd Command) String() string { + switch cmd { + case CmdConnect: + return "socks connect" + case cmdBind: + return "socks bind" + default: + return "socks " + strconv.Itoa(int(cmd)) + } +} + +// An AuthMethod represents a SOCKS authentication method. +type AuthMethod int + +// A Reply represents a SOCKS command reply code. +type Reply int + +func (code Reply) String() string { + switch code { + case StatusSucceeded: + return "succeeded" + case 0x01: + return "general SOCKS server failure" + case 0x02: + return "connection not allowed by ruleset" + case 0x03: + return "network unreachable" + case 0x04: + return "host unreachable" + case 0x05: + return "connection refused" + case 0x06: + return "TTL expired" + case 0x07: + return "command not supported" + case 0x08: + return "address type not supported" + default: + return "unknown code: " + strconv.Itoa(int(code)) + } +} + +// Wire protocol constants. +const ( + Version5 = 0x05 + + AddrTypeIPv4 = 0x01 + AddrTypeFQDN = 0x03 + AddrTypeIPv6 = 0x04 + + CmdConnect Command = 0x01 // establishes an active-open forward proxy connection + cmdBind Command = 0x02 // establishes a passive-open forward proxy connection + + AuthMethodNotRequired AuthMethod = 0x00 // no authentication required + AuthMethodUsernamePassword AuthMethod = 0x02 // use username/password + AuthMethodNoAcceptableMethods AuthMethod = 0xff // no acceptable authentication methods + + StatusSucceeded Reply = 0x00 +) + +// An Addr represents a SOCKS-specific address. +// Either Name or IP is used exclusively. +type Addr struct { + Name string // fully-qualified domain name + IP net.IP + Port int +} + +func (a *Addr) Network() string { return "socks" } + +func (a *Addr) String() string { + if a == nil { + return "<nil>" + } + port := strconv.Itoa(a.Port) + if a.IP == nil { + return net.JoinHostPort(a.Name, port) + } + return net.JoinHostPort(a.IP.String(), port) +} + +// A Conn represents a forward proxy connection. +type Conn struct { + net.Conn + + boundAddr net.Addr +} + +// BoundAddr returns the address assigned by the proxy server for +// connecting to the command target address from the proxy server. +func (c *Conn) BoundAddr() net.Addr { + if c == nil { + return nil + } + return c.boundAddr +} + +// A Dialer holds SOCKS-specific options. +type Dialer struct { + cmd Command // either CmdConnect or cmdBind + proxyNetwork string // network between a proxy server and a client + proxyAddress string // proxy server address + + // ProxyDial specifies the optional dial function for + // establishing the transport connection. + ProxyDial func(context.Context, string, string) (net.Conn, error) + + // AuthMethods specifies the list of request authentication + // methods. + // If empty, SOCKS client requests only AuthMethodNotRequired. + AuthMethods []AuthMethod + + // Authenticate specifies the optional authentication + // function. It must be non-nil when AuthMethods is not empty. + // It must return an error when the authentication is failed. + Authenticate func(context.Context, io.ReadWriter, AuthMethod) error +} + +// DialContext connects to the provided address on the provided +// network. +// +// The returned error value may be a net.OpError. When the Op field of +// net.OpError contains "socks", the Source field contains a proxy +// server address and the Addr field contains a command target +// address. +// +// See func Dial of the net package of standard library for a +// description of the network and address parameters. +func (d *Dialer) DialContext(ctx context.Context, network, address string) (net.Conn, error) { + if err := d.validateTarget(network, address); err != nil { + proxy, dst, _ := d.pathAddrs(address) + return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} + } + if ctx == nil { + proxy, dst, _ := d.pathAddrs(address) + return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: errors.New("nil context")} + } + var err error + var c net.Conn + if d.ProxyDial != nil { + c, err = d.ProxyDial(ctx, d.proxyNetwork, d.proxyAddress) + } else { + var dd net.Dialer + c, err = dd.DialContext(ctx, d.proxyNetwork, d.proxyAddress) + } + if err != nil { + proxy, dst, _ := d.pathAddrs(address) + return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} + } + a, err := d.connect(ctx, c, address) + if err != nil { + c.Close() + proxy, dst, _ := d.pathAddrs(address) + return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} + } + return &Conn{Conn: c, boundAddr: a}, nil +} + +// DialWithConn initiates a connection from SOCKS server to the target +// network and address using the connection c that is already +// connected to the SOCKS server. +// +// It returns the connection's local address assigned by the SOCKS +// server. +func (d *Dialer) DialWithConn(ctx context.Context, c net.Conn, network, address string) (net.Addr, error) { + if err := d.validateTarget(network, address); err != nil { + proxy, dst, _ := d.pathAddrs(address) + return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} + } + if ctx == nil { + proxy, dst, _ := d.pathAddrs(address) + return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: errors.New("nil context")} + } + a, err := d.connect(ctx, c, address) + if err != nil { + proxy, dst, _ := d.pathAddrs(address) + return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} + } + return a, nil +} + +// Dial connects to the provided address on the provided network. +// +// Unlike DialContext, it returns a raw transport connection instead +// of a forward proxy connection. +// +// Deprecated: Use DialContext or DialWithConn instead. +func (d *Dialer) Dial(network, address string) (net.Conn, error) { + if err := d.validateTarget(network, address); err != nil { + proxy, dst, _ := d.pathAddrs(address) + return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} + } + var err error + var c net.Conn + if d.ProxyDial != nil { + c, err = d.ProxyDial(context.Background(), d.proxyNetwork, d.proxyAddress) + } else { + c, err = net.Dial(d.proxyNetwork, d.proxyAddress) + } + if err != nil { + proxy, dst, _ := d.pathAddrs(address) + return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} + } + if _, err := d.DialWithConn(context.Background(), c, network, address); err != nil { + c.Close() + return nil, err + } + return c, nil +} + +func (d *Dialer) validateTarget(network, address string) error { + switch network { + case "tcp", "tcp6", "tcp4": + default: + return errors.New("network not implemented") + } + switch d.cmd { + case CmdConnect, cmdBind: + default: + return errors.New("command not implemented") + } + return nil +} + +func (d *Dialer) pathAddrs(address string) (proxy, dst net.Addr, err error) { + for i, s := range []string{d.proxyAddress, address} { + host, port, err := splitHostPort(s) + if err != nil { + return nil, nil, err + } + a := &Addr{Port: port} + a.IP = net.ParseIP(host) + if a.IP == nil { + a.Name = host + } + if i == 0 { + proxy = a + } else { + dst = a + } + } + return +} + +// NewDialer returns a new Dialer that dials through the provided +// proxy server's network and address. +func NewDialer(network, address string) *Dialer { + return &Dialer{proxyNetwork: network, proxyAddress: address, cmd: CmdConnect} +} + +const ( + authUsernamePasswordVersion = 0x01 + authStatusSucceeded = 0x00 +) + +// UsernamePassword are the credentials for the username/password +// authentication method. +type UsernamePassword struct { + Username string + Password string +} + +// Authenticate authenticates a pair of username and password with the +// proxy server. +func (up *UsernamePassword) Authenticate(ctx context.Context, rw io.ReadWriter, auth AuthMethod) error { + switch auth { + case AuthMethodNotRequired: + return nil + case AuthMethodUsernamePassword: + if len(up.Username) == 0 || len(up.Username) > 255 || len(up.Password) > 255 { + return errors.New("invalid username/password") + } + b := []byte{authUsernamePasswordVersion} + b = append(b, byte(len(up.Username))) + b = append(b, up.Username...) + b = append(b, byte(len(up.Password))) + b = append(b, up.Password...) + // TODO(mikio): handle IO deadlines and cancelation if + // necessary + if _, err := rw.Write(b); err != nil { + return err + } + if _, err := io.ReadFull(rw, b[:2]); err != nil { + return err + } + if b[0] != authUsernamePasswordVersion { + return errors.New("invalid username/password version") + } + if b[1] != authStatusSucceeded { + return errors.New("username/password authentication failed") + } + return nil + } + return errors.New("unsupported authentication method " + strconv.Itoa(int(auth))) +} diff --git a/vendor/golang.org/x/net/proxy/dial.go b/vendor/golang.org/x/net/proxy/dial.go new file mode 100644 index 000000000..811c2e4e9 --- /dev/null +++ b/vendor/golang.org/x/net/proxy/dial.go @@ -0,0 +1,54 @@ +// Copyright 2019 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package proxy + +import ( + "context" + "net" +) + +// A ContextDialer dials using a context. +type ContextDialer interface { + DialContext(ctx context.Context, network, address string) (net.Conn, error) +} + +// Dial works like DialContext on net.Dialer but using a dialer returned by FromEnvironment. +// +// The passed ctx is only used for returning the Conn, not the lifetime of the Conn. +// +// Custom dialers (registered via RegisterDialerType) that do not implement ContextDialer +// can leak a goroutine for as long as it takes the underlying Dialer implementation to timeout. +// +// A Conn returned from a successful Dial after the context has been cancelled will be immediately closed. +func Dial(ctx context.Context, network, address string) (net.Conn, error) { + d := FromEnvironment() + if xd, ok := d.(ContextDialer); ok { + return xd.DialContext(ctx, network, address) + } + return dialContext(ctx, d, network, address) +} + +// WARNING: this can leak a goroutine for as long as the underlying Dialer implementation takes to timeout +// A Conn returned from a successful Dial after the context has been cancelled will be immediately closed. +func dialContext(ctx context.Context, d Dialer, network, address string) (net.Conn, error) { + var ( + conn net.Conn + done = make(chan struct{}, 1) + err error + ) + go func() { + conn, err = d.Dial(network, address) + close(done) + if conn != nil && ctx.Err() != nil { + conn.Close() + } + }() + select { + case <-ctx.Done(): + err = ctx.Err() + case <-done: + } + return conn, err +} diff --git a/vendor/golang.org/x/net/proxy/direct.go b/vendor/golang.org/x/net/proxy/direct.go new file mode 100644 index 000000000..3d66bdef9 --- /dev/null +++ b/vendor/golang.org/x/net/proxy/direct.go @@ -0,0 +1,31 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package proxy + +import ( + "context" + "net" +) + +type direct struct{} + +// Direct implements Dialer by making network connections directly using net.Dial or net.DialContext. +var Direct = direct{} + +var ( + _ Dialer = Direct + _ ContextDialer = Direct +) + +// Dial directly invokes net.Dial with the supplied parameters. +func (direct) Dial(network, addr string) (net.Conn, error) { + return net.Dial(network, addr) +} + +// DialContext instantiates a net.Dialer and invokes its DialContext receiver with the supplied parameters. +func (direct) DialContext(ctx context.Context, network, addr string) (net.Conn, error) { + var d net.Dialer + return d.DialContext(ctx, network, addr) +} diff --git a/vendor/golang.org/x/net/proxy/per_host.go b/vendor/golang.org/x/net/proxy/per_host.go new file mode 100644 index 000000000..573fe79e8 --- /dev/null +++ b/vendor/golang.org/x/net/proxy/per_host.go @@ -0,0 +1,155 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package proxy + +import ( + "context" + "net" + "strings" +) + +// A PerHost directs connections to a default Dialer unless the host name +// requested matches one of a number of exceptions. +type PerHost struct { + def, bypass Dialer + + bypassNetworks []*net.IPNet + bypassIPs []net.IP + bypassZones []string + bypassHosts []string +} + +// NewPerHost returns a PerHost Dialer that directs connections to either +// defaultDialer or bypass, depending on whether the connection matches one of +// the configured rules. +func NewPerHost(defaultDialer, bypass Dialer) *PerHost { + return &PerHost{ + def: defaultDialer, + bypass: bypass, + } +} + +// Dial connects to the address addr on the given network through either +// defaultDialer or bypass. +func (p *PerHost) Dial(network, addr string) (c net.Conn, err error) { + host, _, err := net.SplitHostPort(addr) + if err != nil { + return nil, err + } + + return p.dialerForRequest(host).Dial(network, addr) +} + +// DialContext connects to the address addr on the given network through either +// defaultDialer or bypass. +func (p *PerHost) DialContext(ctx context.Context, network, addr string) (c net.Conn, err error) { + host, _, err := net.SplitHostPort(addr) + if err != nil { + return nil, err + } + d := p.dialerForRequest(host) + if x, ok := d.(ContextDialer); ok { + return x.DialContext(ctx, network, addr) + } + return dialContext(ctx, d, network, addr) +} + +func (p *PerHost) dialerForRequest(host string) Dialer { + if ip := net.ParseIP(host); ip != nil { + for _, net := range p.bypassNetworks { + if net.Contains(ip) { + return p.bypass + } + } + for _, bypassIP := range p.bypassIPs { + if bypassIP.Equal(ip) { + return p.bypass + } + } + return p.def + } + + for _, zone := range p.bypassZones { + if strings.HasSuffix(host, zone) { + return p.bypass + } + if host == zone[1:] { + // For a zone ".example.com", we match "example.com" + // too. + return p.bypass + } + } + for _, bypassHost := range p.bypassHosts { + if bypassHost == host { + return p.bypass + } + } + return p.def +} + +// AddFromString parses a string that contains comma-separated values +// specifying hosts that should use the bypass proxy. Each value is either an +// IP address, a CIDR range, a zone (*.example.com) or a host name +// (localhost). A best effort is made to parse the string and errors are +// ignored. +func (p *PerHost) AddFromString(s string) { + hosts := strings.Split(s, ",") + for _, host := range hosts { + host = strings.TrimSpace(host) + if len(host) == 0 { + continue + } + if strings.Contains(host, "/") { + // We assume that it's a CIDR address like 127.0.0.0/8 + if _, net, err := net.ParseCIDR(host); err == nil { + p.AddNetwork(net) + } + continue + } + if ip := net.ParseIP(host); ip != nil { + p.AddIP(ip) + continue + } + if strings.HasPrefix(host, "*.") { + p.AddZone(host[1:]) + continue + } + p.AddHost(host) + } +} + +// AddIP specifies an IP address that will use the bypass proxy. Note that +// this will only take effect if a literal IP address is dialed. A connection +// to a named host will never match an IP. +func (p *PerHost) AddIP(ip net.IP) { + p.bypassIPs = append(p.bypassIPs, ip) +} + +// AddNetwork specifies an IP range that will use the bypass proxy. Note that +// this will only take effect if a literal IP address is dialed. A connection +// to a named host will never match. +func (p *PerHost) AddNetwork(net *net.IPNet) { + p.bypassNetworks = append(p.bypassNetworks, net) +} + +// AddZone specifies a DNS suffix that will use the bypass proxy. A zone of +// "example.com" matches "example.com" and all of its subdomains. +func (p *PerHost) AddZone(zone string) { + if strings.HasSuffix(zone, ".") { + zone = zone[:len(zone)-1] + } + if !strings.HasPrefix(zone, ".") { + zone = "." + zone + } + p.bypassZones = append(p.bypassZones, zone) +} + +// AddHost specifies a host name that will use the bypass proxy. +func (p *PerHost) AddHost(host string) { + if strings.HasSuffix(host, ".") { + host = host[:len(host)-1] + } + p.bypassHosts = append(p.bypassHosts, host) +} diff --git a/vendor/golang.org/x/net/proxy/proxy.go b/vendor/golang.org/x/net/proxy/proxy.go new file mode 100644 index 000000000..9ff4b9a77 --- /dev/null +++ b/vendor/golang.org/x/net/proxy/proxy.go @@ -0,0 +1,149 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package proxy provides support for a variety of protocols to proxy network +// data. +package proxy // import "golang.org/x/net/proxy" + +import ( + "errors" + "net" + "net/url" + "os" + "sync" +) + +// A Dialer is a means to establish a connection. +// Custom dialers should also implement ContextDialer. +type Dialer interface { + // Dial connects to the given address via the proxy. + Dial(network, addr string) (c net.Conn, err error) +} + +// Auth contains authentication parameters that specific Dialers may require. +type Auth struct { + User, Password string +} + +// FromEnvironment returns the dialer specified by the proxy-related +// variables in the environment and makes underlying connections +// directly. +func FromEnvironment() Dialer { + return FromEnvironmentUsing(Direct) +} + +// FromEnvironmentUsing returns the dialer specify by the proxy-related +// variables in the environment and makes underlying connections +// using the provided forwarding Dialer (for instance, a *net.Dialer +// with desired configuration). +func FromEnvironmentUsing(forward Dialer) Dialer { + allProxy := allProxyEnv.Get() + if len(allProxy) == 0 { + return forward + } + + proxyURL, err := url.Parse(allProxy) + if err != nil { + return forward + } + proxy, err := FromURL(proxyURL, forward) + if err != nil { + return forward + } + + noProxy := noProxyEnv.Get() + if len(noProxy) == 0 { + return proxy + } + + perHost := NewPerHost(proxy, forward) + perHost.AddFromString(noProxy) + return perHost +} + +// proxySchemes is a map from URL schemes to a function that creates a Dialer +// from a URL with such a scheme. +var proxySchemes map[string]func(*url.URL, Dialer) (Dialer, error) + +// RegisterDialerType takes a URL scheme and a function to generate Dialers from +// a URL with that scheme and a forwarding Dialer. Registered schemes are used +// by FromURL. +func RegisterDialerType(scheme string, f func(*url.URL, Dialer) (Dialer, error)) { + if proxySchemes == nil { + proxySchemes = make(map[string]func(*url.URL, Dialer) (Dialer, error)) + } + proxySchemes[scheme] = f +} + +// FromURL returns a Dialer given a URL specification and an underlying +// Dialer for it to make network requests. +func FromURL(u *url.URL, forward Dialer) (Dialer, error) { + var auth *Auth + if u.User != nil { + auth = new(Auth) + auth.User = u.User.Username() + if p, ok := u.User.Password(); ok { + auth.Password = p + } + } + + switch u.Scheme { + case "socks5", "socks5h": + addr := u.Hostname() + port := u.Port() + if port == "" { + port = "1080" + } + return SOCKS5("tcp", net.JoinHostPort(addr, port), auth, forward) + } + + // If the scheme doesn't match any of the built-in schemes, see if it + // was registered by another package. + if proxySchemes != nil { + if f, ok := proxySchemes[u.Scheme]; ok { + return f(u, forward) + } + } + + return nil, errors.New("proxy: unknown scheme: " + u.Scheme) +} + +var ( + allProxyEnv = &envOnce{ + names: []string{"ALL_PROXY", "all_proxy"}, + } + noProxyEnv = &envOnce{ + names: []string{"NO_PROXY", "no_proxy"}, + } +) + +// envOnce looks up an environment variable (optionally by multiple +// names) once. It mitigates expensive lookups on some platforms +// (e.g. Windows). +// (Borrowed from net/http/transport.go) +type envOnce struct { + names []string + once sync.Once + val string +} + +func (e *envOnce) Get() string { + e.once.Do(e.init) + return e.val +} + +func (e *envOnce) init() { + for _, n := range e.names { + e.val = os.Getenv(n) + if e.val != "" { + return + } + } +} + +// reset is used by tests +func (e *envOnce) reset() { + e.once = sync.Once{} + e.val = "" +} diff --git a/vendor/golang.org/x/net/proxy/socks5.go b/vendor/golang.org/x/net/proxy/socks5.go new file mode 100644 index 000000000..c91651f96 --- /dev/null +++ b/vendor/golang.org/x/net/proxy/socks5.go @@ -0,0 +1,42 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package proxy + +import ( + "context" + "net" + + "golang.org/x/net/internal/socks" +) + +// SOCKS5 returns a Dialer that makes SOCKSv5 connections to the given +// address with an optional username and password. +// See RFC 1928 and RFC 1929. +func SOCKS5(network, address string, auth *Auth, forward Dialer) (Dialer, error) { + d := socks.NewDialer(network, address) + if forward != nil { + if f, ok := forward.(ContextDialer); ok { + d.ProxyDial = func(ctx context.Context, network string, address string) (net.Conn, error) { + return f.DialContext(ctx, network, address) + } + } else { + d.ProxyDial = func(ctx context.Context, network string, address string) (net.Conn, error) { + return dialContext(ctx, forward, network, address) + } + } + } + if auth != nil { + up := socks.UsernamePassword{ + Username: auth.User, + Password: auth.Password, + } + d.AuthMethods = []socks.AuthMethod{ + socks.AuthMethodNotRequired, + socks.AuthMethodUsernamePassword, + } + d.Authenticate = up.Authenticate + } + return d, nil +} diff --git a/vendor/modules.txt b/vendor/modules.txt index b0ccbe757..6d43a4011 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -290,8 +290,8 @@ github.com/gorilla/securecookie # github.com/gorilla/sessions v1.2.1 ## explicit github.com/gorilla/sessions -# github.com/gorilla/websocket v1.5.0 -## explicit; go 1.12 +# github.com/gorilla/websocket v1.5.1 +## explicit; go 1.20 github.com/gorilla/websocket # github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0 ## explicit; go 1.17 @@ -894,9 +894,11 @@ golang.org/x/net/http2/hpack golang.org/x/net/idna golang.org/x/net/internal/iana golang.org/x/net/internal/socket +golang.org/x/net/internal/socks golang.org/x/net/internal/timeseries golang.org/x/net/ipv4 golang.org/x/net/ipv6 +golang.org/x/net/proxy golang.org/x/net/publicsuffix golang.org/x/net/trace # golang.org/x/oauth2 v0.13.0 |