无法使用ssl和apache连接到websocket

Question

我打算使用socket.io将客户端连接到服务器套接字。当我使用http时，一切正常，但是当我尝试使用https时，客户端无法连接。

我尝试使用http require（'https'）和证书创建服务器，但是没有用。

现在，经过一些代码更改和测试之后，这就是我的代码：

服务器index.js

var https = require('https');
var app = express();
var options = {
   key: fs.readFileSync('./server-key.pem'), 
   cert: fs.readFileSync('./server-crt.pem'), 
   ca: fs.readFileSync('./ca-crt.pem'), 
   requestCert: false,
   rejectUnauthorized: false
};


var server = https.createServer(options, app);¡
var io = require('socket.io')(server);

server.listen(3003, function() {
        console.log('server up and running at %s port', 3003);
});


io.on('connection', function(client){
        console.log("NUEVO CLIENTE");
        client.on('event', function(data){});
        client.on('disconnect', function(){});
        client.on('setRoom', function(room) {
                        client.room = room;
                        client.join(room);
        });
        client.on('leaveRroom', function(room) {
                        client.leave(room);
    });

});

使用端口3003，服务器连接始终成功。

客户

$scope.socket = io.connect('https://socket.softgym.com/', { transports: ['websocket'],rejectUnauthorized: false});
$scope.socket.on('connect_error', function (data) {
                console.log(data);
    });

    $scope.socket.on('message', function(message) {
        $scope.getAttendance();
        $scope.clientDetails(message.user[0]);
    })

浏览器日志：

socket.io-client:manager opening https://socket.softgym.com/ +0ms
VM74:6 engine.io-client:socket creating transport "websocket" +5s
VM74:6 engine.io-client:socket setting transport websocket +1ms
VM74:6 socket.io-client:manager connect attempt will timeout after 20000 +4ms
VM74:7 WebSocket connection to 'wss://socket.softgym.com/socket.io/?EIO=3&transport=websocket' failed: Error during WebSocket handshake: Unexpected response code: 500
r.doOpen @ VM74:7
r.open @ VM74:7
r.open @ VM74:6
r @ VM74:6
r @ VM74:6
r.open.r.connect @ VM74:6
(anonymous) @ VM74:6
VM74:6 engine.io-client:socket socket error {"type":"TransportError","description":{"isTrusted":true}} +502ms
VM74:6 socket.io-client:manager connect_error +501ms
VM74:6 socket.io-client:manager cleanup +0ms
access.js:51 Error: websocket error
    at r.onError (eval at <anonymous> (jquery.min.js:2), <anonymous>:7:8015)
    at WebSocket.ws.onerror (eval at <anonymous> (jquery.min.js:2), <anonymous>:7:23668)
VM74:6 socket.io-client:manager reconnect attempt error +1ms
VM74:6 socket.io-client:manager will wait 5000ms before reconnect attempt +1ms
VM74:6 engine.io-client:socket socket close with reason: "transport error" +4ms
VM74:6 socket.io-client:manager attempting reconnect +5s
VM74:6 socket.io-client:manager readyState closed +1ms

对于ssl，我正在使用AWS的负载均衡器。

这是我的Apache网站：

<VirtualHost *:80>
        ServerName socket.softgym.com
        ServerAlias www.socket.softgym.com
        ServerAdmin webmaster@localhost
        RewriteEngine On
        RewriteCond %{REQUEST_URI} ^/socket.io          [NC]
        RewriteCond %{QUERY_STRING} transport=websocket [NC]
        RewriteRule /(.*) wss://localhost:3003/%1        [P,L]

        ProxyPass /socket.io https://localhost:3003/socket.io
        ProxyPassReverse /socket.io https://localhost:3003/socket.io

</VirtualHost>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

我希望客户端通过https与服务器成功连接。

Answer 1

看来您的代理服务器不支持 WebScokets 升级。如果您使用 apache，配置并不简单。您必须安装 mod_proxy_ws_tunnel 模块才能执行此操作。

点击此链接

Web 套接字升级是用户通过发送升级标头和三向握手从 HTTP 协议升级到 WebSckets 协议的过程。您可以在这里找到一些有关使用 websocket 配置 apache 的资源

另外，如果不需要 apache 服务器，您可以使用另一个代理服务器。安装 nginx，你的生活会变得更轻松。然后只需将此配置添加到您的 nginx 配置中即可。

location ~* \.io {
  .. your configuration

  proxy_pass http://localhost:3000;
  proxy_redirect off;

  proxy_http_version 1.1;
  proxy_set_header Upgrade $http_upgrade;
  proxy_set_header Connection "upgrade";
}

希望有帮助。