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external module gorilla/websocket use mod version
This commit is contained in:
vcptr
parent
31a647bcf0
commit
5d9e2e69a9
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@ -1,9 +0,0 @@
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# This is the official list of Gorilla WebSocket authors for copyright
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# purposes.
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#
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# Please keep the list sorted.
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Gary Burd <gary@beagledreams.com>
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Google LLC (https://opensource.google.com/)
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Joachim Bauch <mail@joachim-bauch.de>
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22
external/github.com/gorilla/websocket/LICENSE
vendored
22
external/github.com/gorilla/websocket/LICENSE
vendored
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@ -1,22 +0,0 @@
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Copyright (c) 2013 The Gorilla WebSocket Authors. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this
|
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list of conditions and the following disclaimer.
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||||
|
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Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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||||
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
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||||
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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64
external/github.com/gorilla/websocket/README.md
vendored
64
external/github.com/gorilla/websocket/README.md
vendored
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@ -1,64 +0,0 @@
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# Gorilla WebSocket
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Gorilla WebSocket is a [Go](http://golang.org/) implementation of the
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[WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol.
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[](https://travis-ci.org/gorilla/websocket)
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[](https://godoc.org/github.com/gorilla/websocket)
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### Documentation
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* [API Reference](http://godoc.org/github.com/gorilla/websocket)
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* [Chat example](https://github.com/gorilla/websocket/tree/master/examples/chat)
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* [Command example](https://github.com/gorilla/websocket/tree/master/examples/command)
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* [Client and server example](https://github.com/gorilla/websocket/tree/master/examples/echo)
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* [File watch example](https://github.com/gorilla/websocket/tree/master/examples/filewatch)
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### Status
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The Gorilla WebSocket package provides a complete and tested implementation of
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the [WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol. The
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package API is stable.
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### Installation
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go get github.com/gorilla/websocket
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### Protocol Compliance
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The Gorilla WebSocket package passes the server tests in the [Autobahn Test
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Suite](https://github.com/crossbario/autobahn-testsuite) using the application in the [examples/autobahn
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subdirectory](https://github.com/gorilla/websocket/tree/master/examples/autobahn).
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### Gorilla WebSocket compared with other packages
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<table>
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<tr>
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<th></th>
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<th><a href="http://godoc.org/github.com/gorilla/websocket">github.com/gorilla</a></th>
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<th><a href="http://godoc.org/golang.org/x/net/websocket">golang.org/x/net</a></th>
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</tr>
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<tr>
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<tr><td colspan="3"><a href="http://tools.ietf.org/html/rfc6455">RFC 6455</a> Features</td></tr>
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<tr><td>Passes <a href="http://autobahn.ws/testsuite/">Autobahn Test Suite</a></td><td><a href="https://github.com/gorilla/websocket/tree/master/examples/autobahn">Yes</a></td><td>No</td></tr>
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<tr><td>Receive <a href="https://tools.ietf.org/html/rfc6455#section-5.4">fragmented</a> message<td>Yes</td><td><a href="https://code.google.com/p/go/issues/detail?id=7632">No</a>, see note 1</td></tr>
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<tr><td>Send <a href="https://tools.ietf.org/html/rfc6455#section-5.5.1">close</a> message</td><td><a href="http://godoc.org/github.com/gorilla/websocket#hdr-Control_Messages">Yes</a></td><td><a href="https://code.google.com/p/go/issues/detail?id=4588">No</a></td></tr>
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<tr><td>Send <a href="https://tools.ietf.org/html/rfc6455#section-5.5.2">pings</a> and receive <a href="https://tools.ietf.org/html/rfc6455#section-5.5.3">pongs</a></td><td><a href="http://godoc.org/github.com/gorilla/websocket#hdr-Control_Messages">Yes</a></td><td>No</td></tr>
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<tr><td>Get the <a href="https://tools.ietf.org/html/rfc6455#section-5.6">type</a> of a received data message</td><td>Yes</td><td>Yes, see note 2</td></tr>
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<tr><td colspan="3">Other Features</tr></td>
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<tr><td><a href="https://tools.ietf.org/html/rfc7692">Compression Extensions</a></td><td>Experimental</td><td>No</td></tr>
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<tr><td>Read message using io.Reader</td><td><a href="http://godoc.org/github.com/gorilla/websocket#Conn.NextReader">Yes</a></td><td>No, see note 3</td></tr>
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<tr><td>Write message using io.WriteCloser</td><td><a href="http://godoc.org/github.com/gorilla/websocket#Conn.NextWriter">Yes</a></td><td>No, see note 3</td></tr>
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</table>
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Notes:
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1. Large messages are fragmented in [Chrome's new WebSocket implementation](http://www.ietf.org/mail-archive/web/hybi/current/msg10503.html).
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2. The application can get the type of a received data message by implementing
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a [Codec marshal](http://godoc.org/golang.org/x/net/websocket#Codec.Marshal)
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function.
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3. The go.net io.Reader and io.Writer operate across WebSocket frame boundaries.
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Read returns when the input buffer is full or a frame boundary is
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encountered. Each call to Write sends a single frame message. The Gorilla
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io.Reader and io.WriteCloser operate on a single WebSocket message.
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396
external/github.com/gorilla/websocket/client.go
vendored
396
external/github.com/gorilla/websocket/client.go
vendored
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@ -1,396 +0,0 @@
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// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package websocket
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import (
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"bytes"
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"context"
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"crypto/tls"
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"errors"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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"net/url"
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"strings"
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"time"
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)
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// ErrBadHandshake is returned when the server response to opening handshake is
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// invalid.
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var ErrBadHandshake = errors.New("websocket: bad handshake")
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var errInvalidCompression = errors.New("websocket: invalid compression negotiation")
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// NewClient creates a new client connection using the given net connection.
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// The URL u specifies the host and request URI. Use requestHeader to specify
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// the origin (Origin), subprotocols (Sec-WebSocket-Protocol) and cookies
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// (Cookie). Use the response.Header to get the selected subprotocol
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// (Sec-WebSocket-Protocol) and cookies (Set-Cookie).
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//
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// If the WebSocket handshake fails, ErrBadHandshake is returned along with a
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// non-nil *http.Response so that callers can handle redirects, authentication,
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// etc.
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//
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// Deprecated: Use Dialer instead.
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func NewClient(netConn net.Conn, u *url.URL, requestHeader http.Header, readBufSize, writeBufSize int) (c *Conn, response *http.Response, err error) {
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d := Dialer{
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ReadBufferSize: readBufSize,
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WriteBufferSize: writeBufSize,
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NetDial: func(net, addr string) (net.Conn, error) {
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return netConn, nil
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},
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}
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return d.Dial(u.String(), requestHeader)
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}
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// A Dialer contains options for connecting to WebSocket server.
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type Dialer struct {
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// NetDial specifies the dial function for creating TCP connections. If
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// NetDial is nil, net.Dial is used.
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NetDial func(network, addr string) (net.Conn, error)
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// NetDialContext specifies the dial function for creating TCP connections. If
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// NetDialContext is nil, net.DialContext is used.
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NetDialContext func(ctx context.Context, network, addr string) (net.Conn, error)
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// Proxy specifies a function to return a proxy for a given
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// Request. If the function returns a non-nil error, the
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// request is aborted with the provided error.
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// If Proxy is nil or returns a nil *URL, no proxy is used.
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// Proxy func(*http.Request) (*url.URL, error)
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// TLSClientConfig specifies the TLS configuration to use with tls.Client.
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// If nil, the default configuration is used.
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TLSClientConfig *tls.Config
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// HandshakeTimeout specifies the duration for the handshake to complete.
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HandshakeTimeout time.Duration
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// ReadBufferSize and WriteBufferSize specify I/O buffer sizes in bytes. If a buffer
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// size is zero, then a useful default size is used. The I/O buffer sizes
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// do not limit the size of the messages that can be sent or received.
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ReadBufferSize, WriteBufferSize int
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// WriteBufferPool is a pool of buffers for write operations. If the value
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// is not set, then write buffers are allocated to the connection for the
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// lifetime of the connection.
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//
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// A pool is most useful when the application has a modest volume of writes
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// across a large number of connections.
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//
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// Applications should use a single pool for each unique value of
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// WriteBufferSize.
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WriteBufferPool BufferPool
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// Subprotocols specifies the client's requested subprotocols.
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Subprotocols []string
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// EnableCompression specifies if the client should attempt to negotiate
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// per message compression (RFC 7692). Setting this value to true does not
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// guarantee that compression will be supported. Currently only "no context
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// takeover" modes are supported.
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// EnableCompression bool
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// Jar specifies the cookie jar.
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// If Jar is nil, cookies are not sent in requests and ignored
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// in responses.
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Jar http.CookieJar
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}
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// Dial creates a new client connection by calling DialContext with a background context.
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func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Response, error) {
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return d.DialContext(context.Background(), urlStr, requestHeader)
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}
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var errMalformedURL = errors.New("malformed ws or wss URL")
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func hostPortNoPort(u *url.URL) (hostPort, hostNoPort string) {
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hostPort = u.Host
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hostNoPort = u.Host
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if i := strings.LastIndex(u.Host, ":"); i > strings.LastIndex(u.Host, "]") {
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hostNoPort = hostNoPort[:i]
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} else {
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switch u.Scheme {
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case "wss":
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hostPort += ":443"
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case "https":
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hostPort += ":443"
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default:
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hostPort += ":80"
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}
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}
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return hostPort, hostNoPort
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}
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// DefaultDialer is a dialer with all fields set to the default values.
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var DefaultDialer = &Dialer{
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// Proxy: http.ProxyFromEnvironment,
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HandshakeTimeout: 45 * time.Second,
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}
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// nilDialer is dialer to use when receiver is nil.
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var nilDialer = *DefaultDialer
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// DialContext creates a new client connection. Use requestHeader to specify the
|
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// origin (Origin), subprotocols (Sec-WebSocket-Protocol) and cookies (Cookie).
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// Use the response.Header to get the selected subprotocol
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// (Sec-WebSocket-Protocol) and cookies (Set-Cookie).
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//
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// The context will be used in the request and in the Dialer.
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//
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// If the WebSocket handshake fails, ErrBadHandshake is returned along with a
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// non-nil *http.Response so that callers can handle redirects, authentication,
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// etcetera. The response body may not contain the entire response and does not
|
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// need to be closed by the application.
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func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader http.Header) (*Conn, *http.Response, error) {
|
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if d == nil {
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d = &nilDialer
|
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}
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challengeKey, err := generateChallengeKey()
|
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if err != nil {
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return nil, nil, err
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}
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|
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u, err := url.Parse(urlStr)
|
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if err != nil {
|
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return nil, nil, err
|
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}
|
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|
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switch u.Scheme {
|
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case "ws":
|
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u.Scheme = "http"
|
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case "wss":
|
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u.Scheme = "https"
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default:
|
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return nil, nil, errMalformedURL
|
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}
|
||||
|
||||
if u.User != nil {
|
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// User name and password are not allowed in websocket URIs.
|
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return nil, nil, errMalformedURL
|
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}
|
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|
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req := &http.Request{
|
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Method: "GET",
|
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URL: u,
|
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Proto: "HTTP/1.1",
|
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ProtoMajor: 1,
|
||||
ProtoMinor: 1,
|
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Header: make(http.Header),
|
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Host: u.Host,
|
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}
|
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req = req.WithContext(ctx)
|
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|
||||
// Set the cookies present in the cookie jar of the dialer
|
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if d.Jar != nil {
|
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for _, cookie := range d.Jar.Cookies(u) {
|
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req.AddCookie(cookie)
|
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}
|
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}
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|
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// Set the request headers using the capitalization for names and values in
|
||||
// RFC examples. Although the capitalization shouldn't matter, there are
|
||||
// servers that depend on it. The Header.Set method is not used because the
|
||||
// method canonicalizes the header names.
|
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req.Header["Upgrade"] = []string{"websocket"}
|
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req.Header["Connection"] = []string{"Upgrade"}
|
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req.Header["Sec-WebSocket-Key"] = []string{challengeKey}
|
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req.Header["Sec-WebSocket-Version"] = []string{"13"}
|
||||
if len(d.Subprotocols) > 0 {
|
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req.Header["Sec-WebSocket-Protocol"] = []string{strings.Join(d.Subprotocols, ", ")}
|
||||
}
|
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for k, vs := range requestHeader {
|
||||
switch {
|
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case k == "Host":
|
||||
if len(vs) > 0 {
|
||||
req.Host = vs[0]
|
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}
|
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case k == "Upgrade" ||
|
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k == "Connection" ||
|
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k == "Sec-Websocket-Key" ||
|
||||
k == "Sec-Websocket-Version" ||
|
||||
k == "Sec-Websocket-Extensions" ||
|
||||
(k == "Sec-Websocket-Protocol" && len(d.Subprotocols) > 0):
|
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return nil, nil, errors.New("websocket: duplicate header not allowed: " + k)
|
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case k == "Sec-Websocket-Protocol":
|
||||
req.Header["Sec-WebSocket-Protocol"] = vs
|
||||
default:
|
||||
req.Header[k] = vs
|
||||
}
|
||||
}
|
||||
|
||||
//if d.EnableCompression {
|
||||
// req.Header["Sec-WebSocket-Extensions"] = []string{"permessage-deflate; server_no_context_takeover; client_no_context_takeover"}
|
||||
//}
|
||||
|
||||
if d.HandshakeTimeout != 0 {
|
||||
var cancel func()
|
||||
ctx, cancel = context.WithTimeout(ctx, d.HandshakeTimeout)
|
||||
defer cancel()
|
||||
}
|
||||
|
||||
// Get network dial function.
|
||||
var netDial func(network, add string) (net.Conn, error)
|
||||
|
||||
if d.NetDialContext != nil {
|
||||
netDial = func(network, addr string) (net.Conn, error) {
|
||||
return d.NetDialContext(ctx, network, addr)
|
||||
}
|
||||
} else if d.NetDial != nil {
|
||||
netDial = d.NetDial
|
||||
} else {
|
||||
netDialer := &net.Dialer{}
|
||||
netDial = func(network, addr string) (net.Conn, error) {
|
||||
return netDialer.DialContext(ctx, network, addr)
|
||||
}
|
||||
}
|
||||
|
||||
// If needed, wrap the dial function to set the connection deadline.
|
||||
if deadline, ok := ctx.Deadline(); ok {
|
||||
forwardDial := netDial
|
||||
netDial = func(network, addr string) (net.Conn, error) {
|
||||
c, err := forwardDial(network, addr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
err = c.SetDeadline(deadline)
|
||||
if err != nil {
|
||||
c.Close()
|
||||
return nil, err
|
||||
}
|
||||
return c, nil
|
||||
}
|
||||
}
|
||||
|
||||
// If needed, wrap the dial function to connect through a proxy.
|
||||
/*
|
||||
if d.Proxy != nil {
|
||||
proxyURL, err := d.Proxy(req)
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
if proxyURL != nil {
|
||||
dialer, err := proxy_FromURL(proxyURL, netDialerFunc(netDial))
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
netDial = dialer.Dial
|
||||
}
|
||||
}*/
|
||||
|
||||
hostPort, hostNoPort := hostPortNoPort(u)
|
||||
//trace := httptrace.ContextClientTrace(ctx)
|
||||
//if trace != nil && trace.GetConn != nil {
|
||||
// trace.GetConn(hostPort)
|
||||
//}
|
||||
|
||||
netConn, err := netDial("tcp", hostPort)
|
||||
//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 u.Scheme == "https" {
|
||||
cfg := cloneTLSConfig(d.TLSClientConfig)
|
||||
if cfg.ServerName == "" {
|
||||
cfg.ServerName = hostNoPort
|
||||
}
|
||||
tlsConn := tls.Client(netConn, cfg)
|
||||
netConn = tlsConn
|
||||
|
||||
var err error
|
||||
//if trace != nil {
|
||||
// err = doHandshakeWithTrace(trace, tlsConn, cfg)
|
||||
//} else {
|
||||
err = doHandshake(tlsConn, cfg)
|
||||
//}
|
||||
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
}
|
||||
|
||||
conn := newConn(netConn, false, d.ReadBufferSize, d.WriteBufferSize, d.WriteBufferPool, nil, nil)
|
||||
|
||||
if err := req.Write(netConn); err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
//if trace != nil && trace.GotFirstResponseByte != nil {
|
||||
// if peek, err := conn.br.Peek(1); err == nil && len(peek) == 1 {
|
||||
// trace.GotFirstResponseByte()
|
||||
// }
|
||||
//}
|
||||
|
||||
resp, err := http.ReadResponse(conn.br, req)
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
if d.Jar != nil {
|
||||
if rc := resp.Cookies(); len(rc) > 0 {
|
||||
d.Jar.SetCookies(u, rc)
|
||||
}
|
||||
}
|
||||
|
||||
if resp.StatusCode != 101 ||
|
||||
!strings.EqualFold(resp.Header.Get("Upgrade"), "websocket") ||
|
||||
!strings.EqualFold(resp.Header.Get("Connection"), "upgrade") ||
|
||||
resp.Header.Get("Sec-Websocket-Accept") != computeAcceptKey(challengeKey) {
|
||||
// Before closing the network connection on return from this
|
||||
// function, slurp up some of the response to aid application
|
||||
// debugging.
|
||||
buf := make([]byte, 1024)
|
||||
n, _ := io.ReadFull(resp.Body, buf)
|
||||
resp.Body = ioutil.NopCloser(bytes.NewReader(buf[:n]))
|
||||
return nil, resp, ErrBadHandshake
|
||||
}
|
||||
|
||||
/*
|
||||
for _, ext := range parseExtensions(resp.Header) {
|
||||
if ext[""] != "permessage-deflate" {
|
||||
continue
|
||||
}
|
||||
_, snct := ext["server_no_context_takeover"]
|
||||
_, cnct := ext["client_no_context_takeover"]
|
||||
if !snct || !cnct {
|
||||
return nil, resp, errInvalidCompression
|
||||
}
|
||||
conn.newCompressionWriter = compressNoContextTakeover
|
||||
conn.newDecompressionReader = decompressNoContextTakeover
|
||||
break
|
||||
}*/
|
||||
|
||||
resp.Body = ioutil.NopCloser(bytes.NewReader([]byte{}))
|
||||
conn.subprotocol = resp.Header.Get("Sec-Websocket-Protocol")
|
||||
|
||||
netConn.SetDeadline(time.Time{})
|
||||
netConn = nil // to avoid close in defer.
|
||||
return conn, resp, nil
|
||||
}
|
||||
|
||||
func doHandshake(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
|
||||
}
|
||||
|
|
@ -1,16 +0,0 @@
|
|||
// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build go1.8
|
||||
|
||||
package websocket
|
||||
|
||||
import "crypto/tls"
|
||||
|
||||
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
|
||||
if cfg == nil {
|
||||
return &tls.Config{}
|
||||
}
|
||||
return cfg.Clone()
|
||||
}
|
||||
1181
external/github.com/gorilla/websocket/conn.go
vendored
1181
external/github.com/gorilla/websocket/conn.go
vendored
File diff suppressed because it is too large
Load Diff
|
|
@ -1,15 +0,0 @@
|
|||
// Copyright 2016 The Gorilla WebSocket Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build go1.8
|
||||
|
||||
package websocket
|
||||
|
||||
import "net"
|
||||
|
||||
func (c *Conn) writeBufs(bufs ...[]byte) error {
|
||||
b := net.Buffers(bufs)
|
||||
_, err := b.WriteTo(c.conn)
|
||||
return err
|
||||
}
|
||||
180
external/github.com/gorilla/websocket/doc.go
vendored
180
external/github.com/gorilla/websocket/doc.go
vendored
|
|
@ -1,180 +0,0 @@
|
|||
// Copyright 2013 The Gorilla WebSocket 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 websocket implements the WebSocket protocol defined in RFC 6455.
|
||||
//
|
||||
// Overview
|
||||
//
|
||||
// The Conn type represents a WebSocket connection. A server application calls
|
||||
// the Upgrader.Upgrade method from an HTTP request handler to get a *Conn:
|
||||
//
|
||||
// var upgrader = websocket.Upgrader{
|
||||
// ReadBufferSize: 1024,
|
||||
// WriteBufferSize: 1024,
|
||||
// }
|
||||
//
|
||||
// func handler(w http.ResponseWriter, r *http.Request) {
|
||||
// conn, err := upgrader.Upgrade(w, r, nil)
|
||||
// if err != nil {
|
||||
// log.Println(err)
|
||||
// return
|
||||
// }
|
||||
// ... Use conn to send and receive messages.
|
||||
// }
|
||||
//
|
||||
// Call the connection's WriteMessage and ReadMessage methods to send and
|
||||
// receive messages as a slice of bytes. This snippet of code shows how to echo
|
||||
// messages using these methods:
|
||||
//
|
||||
// for {
|
||||
// messageType, p, err := conn.ReadMessage()
|
||||
// if err != nil {
|
||||
// log.Println(err)
|
||||
// return
|
||||
// }
|
||||
// if err := conn.WriteMessage(messageType, p); err != nil {
|
||||
// log.Println(err)
|
||||
// return
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// In above snippet of code, p is a []byte and messageType is an int with value
|
||||
// websocket.BinaryMessage or websocket.TextMessage.
|
||||
//
|
||||
// An application can also send and receive messages using the io.WriteCloser
|
||||
// and io.Reader interfaces. To send a message, call the connection NextWriter
|
||||
// method to get an io.WriteCloser, write the message to the writer and close
|
||||
// the writer when done. To receive a message, call the connection NextReader
|
||||
// method to get an io.Reader and read until io.EOF is returned. This snippet
|
||||
// shows how to echo messages using the NextWriter and NextReader methods:
|
||||
//
|
||||
// for {
|
||||
// messageType, r, err := conn.NextReader()
|
||||
// if err != nil {
|
||||
// return
|
||||
// }
|
||||
// w, err := conn.NextWriter(messageType)
|
||||
// if err != nil {
|
||||
// return err
|
||||
// }
|
||||
// if _, err := io.Copy(w, r); err != nil {
|
||||
// return err
|
||||
// }
|
||||
// if err := w.Close(); err != nil {
|
||||
// return err
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// Data Messages
|
||||
//
|
||||
// The WebSocket protocol distinguishes between text and binary data messages.
|
||||
// Text messages are interpreted as UTF-8 encoded text. The interpretation of
|
||||
// binary messages is left to the application.
|
||||
//
|
||||
// This package uses the TextMessage and BinaryMessage integer constants to
|
||||
// identify the two data message types. The ReadMessage and NextReader methods
|
||||
// return the type of the received message. The messageType argument to the
|
||||
// WriteMessage and NextWriter methods specifies the type of a sent message.
|
||||
//
|
||||
// It is the application's responsibility to ensure that text messages are
|
||||
// valid UTF-8 encoded text.
|
||||
//
|
||||
// Control Messages
|
||||
//
|
||||
// The WebSocket protocol defines three types of control messages: close, ping
|
||||
// and pong. Call the connection WriteControl, WriteMessage or NextWriter
|
||||
// methods to send a control message to the peer.
|
||||
//
|
||||
// Connections handle received close messages by calling the handler function
|
||||
// set with the SetCloseHandler method and by returning a *CloseError from the
|
||||
// NextReader, ReadMessage or the message Read method. The default close
|
||||
// handler sends a close message to the peer.
|
||||
//
|
||||
// Connections handle received ping messages by calling the handler function
|
||||
// set with the SetPingHandler method. The default ping handler sends a pong
|
||||
// message to the peer.
|
||||
//
|
||||
// Connections handle received pong messages by calling the handler function
|
||||
// set with the SetPongHandler method. The default pong handler does nothing.
|
||||
// If an application sends ping messages, then the application should set a
|
||||
// pong handler to receive the corresponding pong.
|
||||
//
|
||||
// The control message handler functions are called from the NextReader,
|
||||
// ReadMessage and message reader Read methods. The default close and ping
|
||||
// handlers can block these methods for a short time when the handler writes to
|
||||
// the connection.
|
||||
//
|
||||
// The application must read the connection to process close, ping and pong
|
||||
// messages sent from the peer. If the application is not otherwise interested
|
||||
// in messages from the peer, then the application should start a goroutine to
|
||||
// read and discard messages from the peer. A simple example is:
|
||||
//
|
||||
// func readLoop(c *websocket.Conn) {
|
||||
// for {
|
||||
// if _, _, err := c.NextReader(); err != nil {
|
||||
// c.Close()
|
||||
// break
|
||||
// }
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// Concurrency
|
||||
//
|
||||
// Connections support one concurrent reader and one concurrent writer.
|
||||
//
|
||||
// Applications are responsible for ensuring that no more than one goroutine
|
||||
// calls the write methods (NextWriter, SetWriteDeadline, WriteMessage,
|
||||
// WriteJSON, EnableWriteCompression, SetCompressionLevel) concurrently and
|
||||
// that no more than one goroutine calls the read methods (NextReader,
|
||||
// SetReadDeadline, ReadMessage, ReadJSON, SetPongHandler, SetPingHandler)
|
||||
// concurrently.
|
||||
//
|
||||
// The Close and WriteControl methods can be called concurrently with all other
|
||||
// methods.
|
||||
//
|
||||
// Origin Considerations
|
||||
//
|
||||
// Web browsers allow Javascript applications to open a WebSocket connection to
|
||||
// any host. It's up to the server to enforce an origin policy using the Origin
|
||||
// request header sent by the browser.
|
||||
//
|
||||
// The Upgrader calls the function specified in the CheckOrigin field to check
|
||||
// the origin. If the CheckOrigin function returns false, then the Upgrade
|
||||
// method fails the WebSocket handshake with HTTP status 403.
|
||||
//
|
||||
// If the CheckOrigin field is nil, then the Upgrader uses a safe default: fail
|
||||
// the handshake if the Origin request header is present and the Origin host is
|
||||
// not equal to the Host request header.
|
||||
//
|
||||
// The deprecated package-level Upgrade function does not perform origin
|
||||
// checking. The application is responsible for checking the Origin header
|
||||
// before calling the Upgrade function.
|
||||
//
|
||||
// Compression EXPERIMENTAL
|
||||
//
|
||||
// Per message compression extensions (RFC 7692) are experimentally supported
|
||||
// by this package in a limited capacity. Setting the EnableCompression option
|
||||
// to true in Dialer or Upgrader will attempt to negotiate per message deflate
|
||||
// support.
|
||||
//
|
||||
// var upgrader = websocket.Upgrader{
|
||||
// EnableCompression: true,
|
||||
// }
|
||||
//
|
||||
// If compression was successfully negotiated with the connection's peer, any
|
||||
// message received in compressed form will be automatically decompressed.
|
||||
// All Read methods will return uncompressed bytes.
|
||||
//
|
||||
// Per message compression of messages written to a connection can be enabled
|
||||
// or disabled by calling the corresponding Conn method:
|
||||
//
|
||||
// conn.EnableWriteCompression(false)
|
||||
//
|
||||
// Currently this package does not support compression with "context takeover".
|
||||
// This means that messages must be compressed and decompressed in isolation,
|
||||
// without retaining sliding window or dictionary state across messages. For
|
||||
// more details refer to RFC 7692.
|
||||
//
|
||||
// Use of compression is experimental and may result in decreased performance.
|
||||
package websocket
|
||||
54
external/github.com/gorilla/websocket/mask.go
vendored
54
external/github.com/gorilla/websocket/mask.go
vendored
|
|
@ -1,54 +0,0 @@
|
|||
// Copyright 2016 The Gorilla WebSocket Authors. All rights reserved. Use of
|
||||
// this source code is governed by a BSD-style license that can be found in the
|
||||
// LICENSE file.
|
||||
|
||||
// +build !appengine
|
||||
|
||||
package websocket
|
||||
|
||||
import "unsafe"
|
||||
|
||||
const wordSize = int(unsafe.Sizeof(uintptr(0)))
|
||||
|
||||
func maskBytes(key [4]byte, pos int, b []byte) int {
|
||||
// Mask one byte at a time for small buffers.
|
||||
if len(b) < 2*wordSize {
|
||||
for i := range b {
|
||||
b[i] ^= key[pos&3]
|
||||
pos++
|
||||
}
|
||||
return pos & 3
|
||||
}
|
||||
|
||||
// Mask one byte at a time to word boundary.
|
||||
if n := int(uintptr(unsafe.Pointer(&b[0]))) % wordSize; n != 0 {
|
||||
n = wordSize - n
|
||||
for i := range b[:n] {
|
||||
b[i] ^= key[pos&3]
|
||||
pos++
|
||||
}
|
||||
b = b[n:]
|
||||
}
|
||||
|
||||
// Create aligned word size key.
|
||||
var k [wordSize]byte
|
||||
for i := range k {
|
||||
k[i] = key[(pos+i)&3]
|
||||
}
|
||||
kw := *(*uintptr)(unsafe.Pointer(&k))
|
||||
|
||||
// Mask one word at a time.
|
||||
n := (len(b) / wordSize) * wordSize
|
||||
for i := 0; i < n; i += wordSize {
|
||||
*(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&b[0])) + uintptr(i))) ^= kw
|
||||
}
|
||||
|
||||
// Mask one byte at a time for remaining bytes.
|
||||
b = b[n:]
|
||||
for i := range b {
|
||||
b[i] ^= key[pos&3]
|
||||
pos++
|
||||
}
|
||||
|
||||
return pos & 3
|
||||
}
|
||||
|
|
@ -1,15 +0,0 @@
|
|||
// Copyright 2016 The Gorilla WebSocket Authors. All rights reserved. Use of
|
||||
// this source code is governed by a BSD-style license that can be found in the
|
||||
// LICENSE file.
|
||||
|
||||
// +build appengine
|
||||
|
||||
package websocket
|
||||
|
||||
func maskBytes(key [4]byte, pos int, b []byte) int {
|
||||
for i := range b {
|
||||
b[i] ^= key[pos&3]
|
||||
pos++
|
||||
}
|
||||
return pos & 3
|
||||
}
|
||||
363
external/github.com/gorilla/websocket/server.go
vendored
363
external/github.com/gorilla/websocket/server.go
vendored
|
|
@ -1,363 +0,0 @@
|
|||
// Copyright 2013 The Gorilla WebSocket 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 websocket
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"errors"
|
||||
"io"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
// HandshakeError describes an error with the handshake from the peer.
|
||||
type HandshakeError struct {
|
||||
message string
|
||||
}
|
||||
|
||||
func (e HandshakeError) Error() string { return e.message }
|
||||
|
||||
// Upgrader specifies parameters for upgrading an HTTP connection to a
|
||||
// WebSocket connection.
|
||||
type Upgrader struct {
|
||||
// HandshakeTimeout specifies the duration for the handshake to complete.
|
||||
HandshakeTimeout time.Duration
|
||||
|
||||
// ReadBufferSize and WriteBufferSize specify I/O buffer sizes in bytes. If a buffer
|
||||
// size is zero, then buffers allocated by the HTTP server are used. The
|
||||
// I/O buffer sizes do not limit the size of the messages that can be sent
|
||||
// or received.
|
||||
ReadBufferSize, WriteBufferSize int
|
||||
|
||||
// WriteBufferPool is a pool of buffers for write operations. If the value
|
||||
// is not set, then write buffers are allocated to the connection for the
|
||||
// lifetime of the connection.
|
||||
//
|
||||
// A pool is most useful when the application has a modest volume of writes
|
||||
// across a large number of connections.
|
||||
//
|
||||
// Applications should use a single pool for each unique value of
|
||||
// WriteBufferSize.
|
||||
WriteBufferPool BufferPool
|
||||
|
||||
// Subprotocols specifies the server's supported protocols in order of
|
||||
// preference. If this field is not nil, then the Upgrade method negotiates a
|
||||
// subprotocol by selecting the first match in this list with a protocol
|
||||
// requested by the client. If there's no match, then no protocol is
|
||||
// negotiated (the Sec-Websocket-Protocol header is not included in the
|
||||
// handshake response).
|
||||
Subprotocols []string
|
||||
|
||||
// Error specifies the function for generating HTTP error responses. If Error
|
||||
// is nil, then http.Error is used to generate the HTTP response.
|
||||
Error func(w http.ResponseWriter, r *http.Request, status int, reason error)
|
||||
|
||||
// CheckOrigin returns true if the request Origin header is acceptable. If
|
||||
// CheckOrigin is nil, then a safe default is used: return false if the
|
||||
// Origin request header is present and the origin host is not equal to
|
||||
// request Host header.
|
||||
//
|
||||
// A CheckOrigin function should carefully validate the request origin to
|
||||
// prevent cross-site request forgery.
|
||||
CheckOrigin func(r *http.Request) bool
|
||||
|
||||
// EnableCompression specify if the server should attempt to negotiate per
|
||||
// message compression (RFC 7692). Setting this value to true does not
|
||||
// guarantee that compression will be supported. Currently only "no context
|
||||
// takeover" modes are supported.
|
||||
// EnableCompression bool
|
||||
}
|
||||
|
||||
func (u *Upgrader) returnError(w http.ResponseWriter, r *http.Request, status int, reason string) (*Conn, error) {
|
||||
err := HandshakeError{reason}
|
||||
if u.Error != nil {
|
||||
u.Error(w, r, status, err)
|
||||
} else {
|
||||
w.Header().Set("Sec-Websocket-Version", "13")
|
||||
http.Error(w, http.StatusText(status), status)
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// checkSameOrigin returns true if the origin is not set or is equal to the request host.
|
||||
func checkSameOrigin(r *http.Request) bool {
|
||||
origin := r.Header["Origin"]
|
||||
if len(origin) == 0 {
|
||||
return true
|
||||
}
|
||||
u, err := url.Parse(origin[0])
|
||||
if err != nil {
|
||||
return false
|
||||
}
|
||||
return equalASCIIFold(u.Host, r.Host)
|
||||
}
|
||||
|
||||
func (u *Upgrader) selectSubprotocol(r *http.Request, responseHeader http.Header) string {
|
||||
if u.Subprotocols != nil {
|
||||
clientProtocols := Subprotocols(r)
|
||||
for _, serverProtocol := range u.Subprotocols {
|
||||
for _, clientProtocol := range clientProtocols {
|
||||
if clientProtocol == serverProtocol {
|
||||
return clientProtocol
|
||||
}
|
||||
}
|
||||
}
|
||||
} else if responseHeader != nil {
|
||||
return responseHeader.Get("Sec-Websocket-Protocol")
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// Upgrade upgrades the HTTP server connection to the WebSocket protocol.
|
||||
//
|
||||
// The responseHeader is included in the response to the client's upgrade
|
||||
// request. Use the responseHeader to specify cookies (Set-Cookie) and the
|
||||
// application negotiated subprotocol (Sec-WebSocket-Protocol).
|
||||
//
|
||||
// If the upgrade fails, then Upgrade replies to the client with an HTTP error
|
||||
// response.
|
||||
func (u *Upgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeader http.Header) (*Conn, error) {
|
||||
const badHandshake = "websocket: the client is not using the websocket protocol: "
|
||||
|
||||
if !tokenListContainsValue(r.Header, "Connection", "upgrade") {
|
||||
return u.returnError(w, r, http.StatusBadRequest, badHandshake+"'upgrade' token not found in 'Connection' header")
|
||||
}
|
||||
|
||||
if !tokenListContainsValue(r.Header, "Upgrade", "websocket") {
|
||||
return u.returnError(w, r, http.StatusBadRequest, badHandshake+"'websocket' token not found in 'Upgrade' header")
|
||||
}
|
||||
|
||||
if r.Method != "GET" {
|
||||
return u.returnError(w, r, http.StatusMethodNotAllowed, badHandshake+"request method is not GET")
|
||||
}
|
||||
|
||||
if !tokenListContainsValue(r.Header, "Sec-Websocket-Version", "13") {
|
||||
return u.returnError(w, r, http.StatusBadRequest, "websocket: unsupported version: 13 not found in 'Sec-Websocket-Version' header")
|
||||
}
|
||||
|
||||
if _, ok := responseHeader["Sec-Websocket-Extensions"]; ok {
|
||||
return u.returnError(w, r, http.StatusInternalServerError, "websocket: application specific 'Sec-WebSocket-Extensions' headers are unsupported")
|
||||
}
|
||||
|
||||
checkOrigin := u.CheckOrigin
|
||||
if checkOrigin == nil {
|
||||
checkOrigin = checkSameOrigin
|
||||
}
|
||||
if !checkOrigin(r) {
|
||||
return u.returnError(w, r, http.StatusForbidden, "websocket: request origin not allowed by Upgrader.CheckOrigin")
|
||||
}
|
||||
|
||||
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")
|
||||
}
|
||||
|
||||
subprotocol := u.selectSubprotocol(r, responseHeader)
|
||||
|
||||
// Negotiate PMCE
|
||||
const compress bool = false
|
||||
//if u.EnableCompression {
|
||||
// for _, ext := range parseExtensions(r.Header) {
|
||||
// if ext[""] != "permessage-deflate" {
|
||||
// continue
|
||||
// }
|
||||
// compress = true
|
||||
// break
|
||||
// }
|
||||
//}
|
||||
|
||||
h, ok := w.(http.Hijacker)
|
||||
if !ok {
|
||||
return u.returnError(w, r, http.StatusInternalServerError, "websocket: response does not implement http.Hijacker")
|
||||
}
|
||||
var brw *bufio.ReadWriter
|
||||
netConn, brw, err := h.Hijack()
|
||||
if err != nil {
|
||||
return u.returnError(w, r, http.StatusInternalServerError, err.Error())
|
||||
}
|
||||
|
||||
if brw.Reader.Buffered() > 0 {
|
||||
netConn.Close()
|
||||
return nil, errors.New("websocket: client sent data before handshake is complete")
|
||||
}
|
||||
|
||||
var br *bufio.Reader
|
||||
if u.ReadBufferSize == 0 && bufioReaderSize(netConn, brw.Reader) > 256 {
|
||||
// Reuse hijacked buffered reader as connection reader.
|
||||
br = brw.Reader
|
||||
}
|
||||
|
||||
buf := bufioWriterBuffer(netConn, brw.Writer)
|
||||
|
||||
var writeBuf []byte
|
||||
if u.WriteBufferPool == nil && u.WriteBufferSize == 0 && len(buf) >= maxFrameHeaderSize+256 {
|
||||
// Reuse hijacked write buffer as connection buffer.
|
||||
writeBuf = buf
|
||||
}
|
||||
|
||||
c := newConn(netConn, true, u.ReadBufferSize, u.WriteBufferSize, u.WriteBufferPool, br, writeBuf)
|
||||
c.subprotocol = subprotocol
|
||||
|
||||
//if compress {
|
||||
// c.newCompressionWriter = compressNoContextTakeover
|
||||
// c.newDecompressionReader = decompressNoContextTakeover
|
||||
//}
|
||||
|
||||
// Use larger of hijacked buffer and connection write buffer for header.
|
||||
p := buf
|
||||
if len(c.writeBuf) > len(p) {
|
||||
p = c.writeBuf
|
||||
}
|
||||
p = p[:0]
|
||||
|
||||
p = append(p, "HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: "...)
|
||||
p = append(p, computeAcceptKey(challengeKey)...)
|
||||
p = append(p, "\r\n"...)
|
||||
if c.subprotocol != "" {
|
||||
p = append(p, "Sec-WebSocket-Protocol: "...)
|
||||
p = append(p, c.subprotocol...)
|
||||
p = append(p, "\r\n"...)
|
||||
}
|
||||
//if compress {
|
||||
// p = append(p, "Sec-WebSocket-Extensions: permessage-deflate; server_no_context_takeover; client_no_context_takeover\r\n"...)
|
||||
//}
|
||||
for k, vs := range responseHeader {
|
||||
if k == "Sec-Websocket-Protocol" {
|
||||
continue
|
||||
}
|
||||
for _, v := range vs {
|
||||
p = append(p, k...)
|
||||
p = append(p, ": "...)
|
||||
for i := 0; i < len(v); i++ {
|
||||
b := v[i]
|
||||
if b <= 31 {
|
||||
// prevent response splitting.
|
||||
b = ' '
|
||||
}
|
||||
p = append(p, b)
|
||||
}
|
||||
p = append(p, "\r\n"...)
|
||||
}
|
||||
}
|
||||
p = append(p, "\r\n"...)
|
||||
|
||||
// Clear deadlines set by HTTP server.
|
||||
netConn.SetDeadline(time.Time{})
|
||||
|
||||
if u.HandshakeTimeout > 0 {
|
||||
netConn.SetWriteDeadline(time.Now().Add(u.HandshakeTimeout))
|
||||
}
|
||||
if _, err = netConn.Write(p); err != nil {
|
||||
netConn.Close()
|
||||
return nil, err
|
||||
}
|
||||
if u.HandshakeTimeout > 0 {
|
||||
netConn.SetWriteDeadline(time.Time{})
|
||||
}
|
||||
|
||||
return c, nil
|
||||
}
|
||||
|
||||
// Upgrade upgrades the HTTP server connection to the WebSocket protocol.
|
||||
//
|
||||
// Deprecated: Use websocket.Upgrader instead.
|
||||
//
|
||||
// Upgrade does not perform origin checking. The application is responsible for
|
||||
// checking the Origin header before calling Upgrade. An example implementation
|
||||
// of the same origin policy check is:
|
||||
//
|
||||
// if req.Header.Get("Origin") != "http://"+req.Host {
|
||||
// http.Error(w, "Origin not allowed", http.StatusForbidden)
|
||||
// return
|
||||
// }
|
||||
//
|
||||
// If the endpoint supports subprotocols, then the application is responsible
|
||||
// for negotiating the protocol used on the connection. Use the Subprotocols()
|
||||
// function to get the subprotocols requested by the client. Use the
|
||||
// Sec-Websocket-Protocol response header to specify the subprotocol selected
|
||||
// by the application.
|
||||
//
|
||||
// The responseHeader is included in the response to the client's upgrade
|
||||
// request. Use the responseHeader to specify cookies (Set-Cookie) and the
|
||||
// negotiated subprotocol (Sec-Websocket-Protocol).
|
||||
//
|
||||
// The connection buffers IO to the underlying network connection. The
|
||||
// readBufSize and writeBufSize parameters specify the size of the buffers to
|
||||
// use. Messages can be larger than the buffers.
|
||||
//
|
||||
// If the request is not a valid WebSocket handshake, then Upgrade returns an
|
||||
// error of type HandshakeError. Applications should handle this error by
|
||||
// replying to the client with an HTTP error response.
|
||||
func Upgrade(w http.ResponseWriter, r *http.Request, responseHeader http.Header, readBufSize, writeBufSize int) (*Conn, error) {
|
||||
u := Upgrader{ReadBufferSize: readBufSize, WriteBufferSize: writeBufSize}
|
||||
u.Error = func(w http.ResponseWriter, r *http.Request, status int, reason error) {
|
||||
// don't return errors to maintain backwards compatibility
|
||||
}
|
||||
u.CheckOrigin = func(r *http.Request) bool {
|
||||
// allow all connections by default
|
||||
return true
|
||||
}
|
||||
return u.Upgrade(w, r, responseHeader)
|
||||
}
|
||||
|
||||
// Subprotocols returns the subprotocols requested by the client in the
|
||||
// Sec-Websocket-Protocol header.
|
||||
func Subprotocols(r *http.Request) []string {
|
||||
h := strings.TrimSpace(r.Header.Get("Sec-Websocket-Protocol"))
|
||||
if h == "" {
|
||||
return nil
|
||||
}
|
||||
protocols := strings.Split(h, ",")
|
||||
for i := range protocols {
|
||||
protocols[i] = strings.TrimSpace(protocols[i])
|
||||
}
|
||||
return protocols
|
||||
}
|
||||
|
||||
// IsWebSocketUpgrade returns true if the client requested upgrade to the
|
||||
// WebSocket protocol.
|
||||
func IsWebSocketUpgrade(r *http.Request) bool {
|
||||
return tokenListContainsValue(r.Header, "Connection", "upgrade") &&
|
||||
tokenListContainsValue(r.Header, "Upgrade", "websocket")
|
||||
}
|
||||
|
||||
// bufioReaderSize size returns the size of a bufio.Reader.
|
||||
func bufioReaderSize(originalReader io.Reader, br *bufio.Reader) int {
|
||||
// This code assumes that peek on a reset reader returns
|
||||
// bufio.Reader.buf[:0].
|
||||
// TODO: Use bufio.Reader.Size() after Go 1.10
|
||||
br.Reset(originalReader)
|
||||
if p, err := br.Peek(0); err == nil {
|
||||
return cap(p)
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
// writeHook is an io.Writer that records the last slice passed to it vio
|
||||
// io.Writer.Write.
|
||||
type writeHook struct {
|
||||
p []byte
|
||||
}
|
||||
|
||||
func (wh *writeHook) Write(p []byte) (int, error) {
|
||||
wh.p = p
|
||||
return len(p), nil
|
||||
}
|
||||
|
||||
// bufioWriterBuffer grabs the buffer from a bufio.Writer.
|
||||
func bufioWriterBuffer(originalWriter io.Writer, bw *bufio.Writer) []byte {
|
||||
// This code assumes that bufio.Writer.buf[:1] is passed to the
|
||||
// bufio.Writer's underlying writer.
|
||||
var wh writeHook
|
||||
bw.Reset(&wh)
|
||||
bw.WriteByte(0)
|
||||
bw.Flush()
|
||||
|
||||
bw.Reset(originalWriter)
|
||||
|
||||
return wh.p[:cap(wh.p)]
|
||||
}
|
||||
283
external/github.com/gorilla/websocket/util.go
vendored
283
external/github.com/gorilla/websocket/util.go
vendored
|
|
@ -1,283 +0,0 @@
|
|||
// Copyright 2013 The Gorilla WebSocket 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 websocket
|
||||
|
||||
import (
|
||||
"crypto/rand"
|
||||
"crypto/sha1"
|
||||
"encoding/base64"
|
||||
"io"
|
||||
"net/http"
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
var keyGUID = []byte("258EAFA5-E914-47DA-95CA-C5AB0DC85B11")
|
||||
|
||||
func computeAcceptKey(challengeKey string) string {
|
||||
h := sha1.New()
|
||||
h.Write([]byte(challengeKey))
|
||||
h.Write(keyGUID)
|
||||
return base64.StdEncoding.EncodeToString(h.Sum(nil))
|
||||
}
|
||||
|
||||
func generateChallengeKey() (string, error) {
|
||||
p := make([]byte, 16)
|
||||
if _, err := io.ReadFull(rand.Reader, p); err != nil {
|
||||
return "", err
|
||||
}
|
||||
return base64.StdEncoding.EncodeToString(p), nil
|
||||
}
|
||||
|
||||
// Token octets per RFC 2616.
|
||||
var isTokenOctet = [256]bool{
|
||||
'!': true,
|
||||
'#': true,
|
||||
'$': true,
|
||||
'%': true,
|
||||
'&': true,
|
||||
'\'': true,
|
||||
'*': true,
|
||||
'+': true,
|
||||
'-': true,
|
||||
'.': true,
|
||||
'0': true,
|
||||
'1': true,
|
||||
'2': true,
|
||||
'3': true,
|
||||
'4': true,
|
||||
'5': true,
|
||||
'6': true,
|
||||
'7': true,
|
||||
'8': true,
|
||||
'9': true,
|
||||
'A': true,
|
||||
'B': true,
|
||||
'C': true,
|
||||
'D': true,
|
||||
'E': true,
|
||||
'F': true,
|
||||
'G': true,
|
||||
'H': true,
|
||||
'I': true,
|
||||
'J': true,
|
||||
'K': true,
|
||||
'L': true,
|
||||
'M': true,
|
||||
'N': true,
|
||||
'O': true,
|
||||
'P': true,
|
||||
'Q': true,
|
||||
'R': true,
|
||||
'S': true,
|
||||
'T': true,
|
||||
'U': true,
|
||||
'W': true,
|
||||
'V': true,
|
||||
'X': true,
|
||||
'Y': true,
|
||||
'Z': true,
|
||||
'^': true,
|
||||
'_': true,
|
||||
'`': true,
|
||||
'a': true,
|
||||
'b': true,
|
||||
'c': true,
|
||||
'd': true,
|
||||
'e': true,
|
||||
'f': true,
|
||||
'g': true,
|
||||
'h': true,
|
||||
'i': true,
|
||||
'j': true,
|
||||
'k': true,
|
||||
'l': true,
|
||||
'm': true,
|
||||
'n': true,
|
||||
'o': true,
|
||||
'p': true,
|
||||
'q': true,
|
||||
'r': true,
|
||||
's': true,
|
||||
't': true,
|
||||
'u': true,
|
||||
'v': true,
|
||||
'w': true,
|
||||
'x': true,
|
||||
'y': true,
|
||||
'z': true,
|
||||
'|': true,
|
||||
'~': true,
|
||||
}
|
||||
|
||||
// skipSpace returns a slice of the string s with all leading RFC 2616 linear
|
||||
// whitespace removed.
|
||||
func skipSpace(s string) (rest string) {
|
||||
i := 0
|
||||
for ; i < len(s); i++ {
|
||||
if b := s[i]; b != ' ' && b != '\t' {
|
||||
break
|
||||
}
|
||||
}
|
||||
return s[i:]
|
||||
}
|
||||
|
||||
// nextToken returns the leading RFC 2616 token of s and the string following
|
||||
// the token.
|
||||
func nextToken(s string) (token, rest string) {
|
||||
i := 0
|
||||
for ; i < len(s); i++ {
|
||||
if !isTokenOctet[s[i]] {
|
||||
break
|
||||
}
|
||||
}
|
||||
return s[:i], s[i:]
|
||||
}
|
||||
|
||||
// nextTokenOrQuoted returns the leading token or quoted string per RFC 2616
|
||||
// and the string following the token or quoted string.
|
||||
func nextTokenOrQuoted(s string) (value string, rest string) {
|
||||
if !strings.HasPrefix(s, "\"") {
|
||||
return nextToken(s)
|
||||
}
|
||||
s = s[1:]
|
||||
for i := 0; i < len(s); i++ {
|
||||
switch s[i] {
|
||||
case '"':
|
||||
return s[:i], s[i+1:]
|
||||
case '\\':
|
||||
p := make([]byte, len(s)-1)
|
||||
j := copy(p, s[:i])
|
||||
escape := true
|
||||
for i = i + 1; i < len(s); i++ {
|
||||
b := s[i]
|
||||
switch {
|
||||
case escape:
|
||||
escape = false
|
||||
p[j] = b
|
||||
j++
|
||||
case b == '\\':
|
||||
escape = true
|
||||
case b == '"':
|
||||
return string(p[:j]), s[i+1:]
|
||||
default:
|
||||
p[j] = b
|
||||
j++
|
||||
}
|
||||
}
|
||||
return "", ""
|
||||
}
|
||||
}
|
||||
return "", ""
|
||||
}
|
||||
|
||||
// equalASCIIFold returns true if s is equal to t with ASCII case folding as
|
||||
// defined in RFC 4790.
|
||||
func equalASCIIFold(s, t string) bool {
|
||||
for s != "" && t != "" {
|
||||
sr, size := utf8.DecodeRuneInString(s)
|
||||
s = s[size:]
|
||||
tr, size := utf8.DecodeRuneInString(t)
|
||||
t = t[size:]
|
||||
if sr == tr {
|
||||
continue
|
||||
}
|
||||
if 'A' <= sr && sr <= 'Z' {
|
||||
sr = sr + 'a' - 'A'
|
||||
}
|
||||
if 'A' <= tr && tr <= 'Z' {
|
||||
tr = tr + 'a' - 'A'
|
||||
}
|
||||
if sr != tr {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return s == t
|
||||
}
|
||||
|
||||
// tokenListContainsValue returns true if the 1#token header with the given
|
||||
// name contains a token equal to value with ASCII case folding.
|
||||
func tokenListContainsValue(header http.Header, name string, value string) bool {
|
||||
headers:
|
||||
for _, s := range header[name] {
|
||||
for {
|
||||
var t string
|
||||
t, s = nextToken(skipSpace(s))
|
||||
if t == "" {
|
||||
continue headers
|
||||
}
|
||||
s = skipSpace(s)
|
||||
if s != "" && s[0] != ',' {
|
||||
continue headers
|
||||
}
|
||||
if equalASCIIFold(t, value) {
|
||||
return true
|
||||
}
|
||||
if s == "" {
|
||||
continue headers
|
||||
}
|
||||
s = s[1:]
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// parseExtensions parses WebSocket extensions from a header.
|
||||
func parseExtensions(header http.Header) []map[string]string {
|
||||
// From RFC 6455:
|
||||
//
|
||||
// Sec-WebSocket-Extensions = extension-list
|
||||
// extension-list = 1#extension
|
||||
// extension = extension-token *( ";" extension-param )
|
||||
// extension-token = registered-token
|
||||
// registered-token = token
|
||||
// extension-param = token [ "=" (token | quoted-string) ]
|
||||
// ;When using the quoted-string syntax variant, the value
|
||||
// ;after quoted-string unescaping MUST conform to the
|
||||
// ;'token' ABNF.
|
||||
|
||||
var result []map[string]string
|
||||
headers:
|
||||
for _, s := range header["Sec-Websocket-Extensions"] {
|
||||
for {
|
||||
var t string
|
||||
t, s = nextToken(skipSpace(s))
|
||||
if t == "" {
|
||||
continue headers
|
||||
}
|
||||
ext := map[string]string{"": t}
|
||||
for {
|
||||
s = skipSpace(s)
|
||||
if !strings.HasPrefix(s, ";") {
|
||||
break
|
||||
}
|
||||
var k string
|
||||
k, s = nextToken(skipSpace(s[1:]))
|
||||
if k == "" {
|
||||
continue headers
|
||||
}
|
||||
s = skipSpace(s)
|
||||
var v string
|
||||
if strings.HasPrefix(s, "=") {
|
||||
v, s = nextTokenOrQuoted(skipSpace(s[1:]))
|
||||
s = skipSpace(s)
|
||||
}
|
||||
if s != "" && s[0] != ',' && s[0] != ';' {
|
||||
continue headers
|
||||
}
|
||||
ext[k] = v
|
||||
}
|
||||
if s != "" && s[0] != ',' {
|
||||
continue headers
|
||||
}
|
||||
result = append(result, ext)
|
||||
if s == "" {
|
||||
continue headers
|
||||
}
|
||||
s = s[1:]
|
||||
}
|
||||
}
|
||||
return result
|
||||
}
|
||||
1
go.mod
1
go.mod
|
|
@ -4,6 +4,7 @@ require (
|
|||
github.com/golang/mock v1.2.0
|
||||
github.com/golang/protobuf v1.3.2
|
||||
github.com/google/go-cmp v0.2.0
|
||||
github.com/gorilla/websocket v1.4.1
|
||||
github.com/miekg/dns v1.1.4
|
||||
go.starlark.net v0.0.0-20190919145610-979af19b165c
|
||||
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2
|
||||
|
|
|
|||
2
go.sum
2
go.sum
|
|
@ -10,6 +10,8 @@ github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs
|
|||
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||
github.com/google/go-cmp v0.2.0 h1:+dTQ8DZQJz0Mb/HjFlkptS1FeQ4cWSnN941F8aEG4SQ=
|
||||
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
|
||||
github.com/gorilla/websocket v1.4.1 h1:q7AeDBpnBk8AogcD4DSag/Ukw/KV+YhzLj2bP5HvKCM=
|
||||
github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
|
||||
github.com/miekg/dns v1.1.4 h1:rCMZsU2ScVSYcAsOXgmC6+AKOK+6pmQTOcw03nfwYV0=
|
||||
github.com/miekg/dns v1.1.4/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
|
||||
go.starlark.net v0.0.0-20190919145610-979af19b165c h1:WR7X1xgXJlXhQBdorVc9Db3RhwG+J/kp6bLuMyJjfVw=
|
||||
|
|
|
|||
|
|
@ -7,10 +7,10 @@ import (
|
|||
"net"
|
||||
"time"
|
||||
|
||||
"github.com/gorilla/websocket"
|
||||
"v2ray.com/core/common/buf"
|
||||
"v2ray.com/core/common/errors"
|
||||
"v2ray.com/core/common/serial"
|
||||
"v2ray.com/core/external/github.com/gorilla/websocket"
|
||||
)
|
||||
|
||||
var (
|
||||
|
|
|
|||
|
|
@ -6,10 +6,10 @@ import (
|
|||
"context"
|
||||
"time"
|
||||
|
||||
"github.com/gorilla/websocket"
|
||||
"v2ray.com/core/common"
|
||||
"v2ray.com/core/common/net"
|
||||
"v2ray.com/core/common/session"
|
||||
"v2ray.com/core/external/github.com/gorilla/websocket"
|
||||
"v2ray.com/core/transport/internet"
|
||||
"v2ray.com/core/transport/internet/tls"
|
||||
)
|
||||
|
|
|
|||
|
|
@ -9,11 +9,11 @@ import (
|
|||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/gorilla/websocket"
|
||||
"v2ray.com/core/common"
|
||||
"v2ray.com/core/common/net"
|
||||
http_proto "v2ray.com/core/common/protocol/http"
|
||||
"v2ray.com/core/common/session"
|
||||
"v2ray.com/core/external/github.com/gorilla/websocket"
|
||||
"v2ray.com/core/transport/internet"
|
||||
v2tls "v2ray.com/core/transport/internet/tls"
|
||||
)
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user