Question

在客户端，我正在尝试建立wss连接：

var ws = new WebSocket("wss://wsserver.com/test")

并返回错误：

WebSocket connection to 'wss://wsserver.com/test' failed: Error during WebSocket handshake: Unexpected response code: 400

完整标题是：

请求标题

GET wss://wsserver.com/test HTTP/1.1
Host: wsserver.com
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
Upgrade: websocket
Origin: https://website.net
Sec-WebSocket-Version: 13
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36
Accept-Encoding: gzip, deflate, sdch, br
Accept-Language: en-US,en;q=0.8
Sec-WebSocket-Key: Tj9AJ5TKglNf5LoHsQTpvQ==
Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits

响应标题

Access-Control-Allow-Credentials:true
Access-Control-Allow-Origin:https://website.net
Connection:close
Content-Length:18
Content-Type:text/plain; charset=utf-8
Date:Fri, 21 Apr 2017 21:03:45 GMT
Server:Apache/2.4.18 (Ubuntu)
Vary:Origin
X-Content-Type-Options:nosniff

服务器端在Apache反向代理后面的端口8888上运行。这是Apache配置：

<VirtualHost *:443>
        ServerName website.com

        ProxyPreserveHost On
        ProxyRequests Off
        ProxyPass "/" "wss://localhost:8888/"

mod_proxy 和 mod_proxy_wstunnel 已安装。

这里缺少什么东西吗？似乎请求通过但没有建立连接。

Answer 1

我最终通过对虚拟主机使用此配置来解决此问题，虚拟主机使用HTTP标头过滤请求：

{print ext, extensions[ext]}

我将此作为参考，以防其他人

Answer 2

@ pimgeek的评论：

我认为不是 RewriteRule ^/nodered/comms wss://localhost:1880/nodered/comms [P,L]

您本可以利用$ 1进行以下操作： RewriteRule ^/nodered/comms$ wss://localhost:1880/$1 [P,L]

这也应该起作用： RewriteRule ^/nodered/comms$ wss://localhost:1880$1 [P,L]

在端口后注意不需要的/，因为$ 1的开头已经包含/。

Answer 3

这是我为我工作的virtualhost的设置，我在docker上安装了.netcore应用，并将SignalR作为websocket服务。

在5000上我的.netcore应用正在运行，在/chatHub上我的signalR监听。

将对以后遇到相同问题的人有所帮助。

<IfModule mod_ssl.c>
<VirtualHost *:443>
  RewriteEngine On
  ProxyPreserveHost On
  ProxyRequests Off

  # allow for upgrading to websockets
  RewriteEngine On
  RewriteCond %{HTTP:Upgrade} =websocket [NC]
  RewriteRule /(.*)           ws://localhost:5000/$1 [P,L]
  RewriteCond %{HTTP:Upgrade} !=websocket [NC]
  RewriteRule /(.*)           http://localhost:5000/$1 [P,L]


  ProxyPass "/" "http://localhost:5000/"
  ProxyPassReverse "/" "http://localhost:5000/"

  ProxyPass "/chatHub" "ws://localhost:5000/chatHub"
  ProxyPassReverse "/chatHub" "ws://localhost:5000/chatHub"

  ServerName site.com
  
SSLCertificateFile /etc/letsencrypt/live/site.com/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/site.com/privkey.pem
Include /etc/letsencrypt/options-ssl-apache.conf
</VirtualHost>
</IfModule>

来源：http://shyammakwana.me/server/websockets-with-apache-reverse-proxy-with-ssl.html

使用Apache反向代理通过SSL进行WebSocket

3 个答案: