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Websocket

Websocket是GOST中的一种数据通道类型。

TLS证书配置

TLS配置请参考TLS配置说明。

Websocket

未加密的Websocket数据通道。

gost -L ws://:8080

services:
- name: service-0
  addr: :
  handler:
    type: auto
  listener:
    type: ws

Websocket Secure

基于TLS加密的Websocket数据通道。

gost -L wss://:8080

services:
- name: service-0
  addr: :
  handler:
    type: auto
  listener:
    type: wss

多路复用

GOST在Websocket基础之上扩展出具有多路复用(Multiplex)特性的传输类型mws和mwss。多路复用基于xtaci/smux库。

gost -L mws://:8443

或

gost -L mwss://:8443

services:
- name: service-0
  addr: :
  handler:
    type: auto
  listener:
    type: mws
    # type: mwss
    metadata:
      mux.version: 1

参数选项

多路复用

mux.version (int, default=1)
SMUX协议版本
mux.keepaliveDisabled (bool, default=false)
是否禁用心跳
mux.keepaliveInterval (duration, default=10s)
心跳间隔时长
mux.keepaliveTimeout (duration, default=30s)
心跳超时时长
mux.maxFrameSize (int, default=32768)
帧最大长度
mux.maxReceiveBuffer (int, default=4194304)
接收缓冲区大小
mux.maxStreamBuffer (int, default=65536)
Steam缓冲区大小

自定义请求路径

可以通过path选项自定义请求路径，默认值为/ws。

路径匹配验证

仅当客户端和服务端设定的path参数相同时，连接才能成功建立。

服务端

gost -L wss://:8443?path=/ws

services:
- name: service-0
  addr: :8443
  handler:
    type: auto
  listener:
    type: wss
    metadata:
      path: /ws

客户端

gost -L http://:8080 -F wss://:8443?path=/ws

services:
- name: service-0
  addr: :8080
  handler:
    type: http
    chain: chain-0
  listener:
    type: tcp
chains:
- name: chain-0
  hops:
  - name: hop-0
    nodes:
    - name: node-0
      addr: :8443
      connector:
        type: http
      dialer:
        type: wss
        metadata:
          path: /ws

自定义请求主机名

客户端默认使用节点地址(-F参数或nodes.addr中指定的地址)作为请求主机名(Host头部信息)，可以通过host参数自定义请求主机名。

gost -L http://:8080 -F wss://:8443?host=example.com

services:
- name: service-0
  addr: :8080
  handler:
    type: http
    chain: chain-0
  listener:
    type: tcp
chains:
- name: chain-0
  hops:
  - name: hop-0
    nodes:
    - name: node-0
      addr: :8443
      connector:
        type: http
      dialer:
        type: wss
        metadata:
          host: example.com

自定义HTTP头

通过header选项可以自定义请求和响应头部信息。

services:
- name: service-0
  addr: :8080
  handler:
    type: http
    chain: chain-0
  listener:
    type: tcp
chains:
- name: chain-0
  hops:
  - name: hop-0
    nodes:
    - name: node-0
      addr: :8443
      connector:
        type: http
      dialer:
        type: wss
        metadata:
          header:
            User-Agent: "gost/3.0"
            foo: bar

心跳

客户端可以通过keepalive选项开启心跳，并通过ttl选项设置心跳包发送的间隔时长。

gost -L http://:8080 -F "wss://:8443?keepalive=true&ttl=15s"

services:
- name: service-0
  addr: :8080
  handler:
    type: http
    chain: chain-0
  listener:
    type: tcp
chains:
- name: chain-0
  hops:
  - name: hop-0
    nodes:
    - name: node-0
      addr: :8443
      connector:
        type: http
      dialer:
        type: wss
        metadata:
          keepalive: true
          ttl: 15s

组合使用

Websocket数据通道可以与各种代理协议组合使用。

HTTP Over Websocket

gost -L http+wss://:8443

services:
- name: service-0
  addr: :8443
  handler:
    type: http
  listener:
    type: wss
    # type: mwss

SOCKS5 Over Websocket

gost -L socks5+wss://:8443

services:
- name: service-0
  addr: :8443
  handler:
    type: socks5
  listener:
    type: wss
    # type: mwss

Relay Over Websocket

gost -L relay+wss://:8443

services:
- name: service-0
  addr: :8443
  handler:
    type: relay
  listener:
    type: wss
    # type: mwss

端口转发

Websocket通道也可以用作端口转发。

服务端

gost -L wss://:8443/:1080 -L socks5://:1080
等同于

gost -L forward+wss://:8443/:1080 -L socks5://:1080

services:
- name: service-0
  addr: :8443
  handler:
    type: forward
  listener:
    type: wss
  forwarder:
    nodes:
    - name: target-0
      addr: :1080
- name: service-1
  addr: :1080
  handler:
    type: socks5
  listener:
    type: tcp

通过使用Websocket数据通道的端口转发，给1080端口的SOCKS5代理服务增加了Websocket数据通道。

此时8443端口等同于：

gost -L socks5+wss://:8443

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