带有 SSL 的 node.js、socket.io

Question

我正在尝试使用我的 SSL 证书运行 socket.io，但是它无法连接。

我的代码基于聊天示例：

var https = require('https');
var fs = require('fs');
/**
 * Bootstrap app.
 */
var sys = require('sys')
require.paths.unshift(__dirname + '/../../lib/');

/**
* Module dependencies.
*/

var express = require('express')
  , stylus = require('stylus')
  , nib = require('nib')
  , sio = require('socket.io');

/**
 * App.
 */
var privateKey = fs.readFileSync('../key').toString();
var certificate = fs.readFileSync('../crt').toString();
var ca = fs.readFileSync('../intermediate.crt').toString();

var app = express.createServer({key:privateKey,cert:certificate,ca:ca });


/**
 * App configuration.
 */

...

/**
 * App routes.
 */

app.get('/', function (req, res) {
  res.render('index', { layout: false });
});

/**
 * App listen.
 */

app.listen(443, function () {
  var addr = app.address();
  console.log('   app listening on http://' + addr.address + ':' + addr.port);
});

/**
 * Socket.IO server (single process only)
 */

var io = sio.listen(app,{key:privateKey,cert:certificate,ca:ca});
...

如果我删除 SSL 代码，它运行良好，但是有了它，我收到了对 http://domain.com/socket.io/1/?t=1309967919512 的请求

注意它没有尝试 https，这会导致它失败。

我正在 chrome 上进行测试，因为它是这个应用程序的目标浏览器。

如果这是一个简单的问题，我深表歉意，我是 node/socket.io 新手。

谢谢！

Answer 1

为您的初始连接使用安全 URL，即使用“https://”代替“http://”。如果选择了 WebSocket 传输，那么 Socket.IO 也应该自动使用 "wss://" (SSL) 进行 WebSocket 连接。

更新：

您也可以尝试使用“安全”选项创建连接：

var socket = io.connect('https://localhost', {secure: true});

Answer 2

同样，如果您的服务器同时支持http 和https，您可以使用以下方式进行连接：

var socket = io.connect('//localhost');

到 auto detect the browser scheme 并相应地使用 http/https 进行连接。在 https 中时，默认情况下传输将受到保护，因为使用连接

var socket = io.connect('https://localhost');

将使用安全网络套接字 - wss://（{secure: true} 是多余的）。

有关如何使用同一节点服务器轻松同时提供 http 和 https 的更多信息，请查看this answer。

Answer 3

以下是我使用 express 设置的方法：

    var app = require('express')();
    var https = require('https');
    var fs = require( 'fs' );
    var io = require('socket.io')(server);

    var options = {
        key: fs.readFileSync('./test_key.key'),
        cert: fs.readFileSync('./test_cert.crt'),
        ca: fs.readFileSync('./test_ca.crt'),

        requestCert: false,
        rejectUnauthorized: false
    }

    var server = https.createServer(options, app);
    server.listen(8080);
    

    
    io.sockets.on('connection', function (socket) {
        // code goes here...
    });
    
    app.get("/", function(request, response){
        // code goes here...
    })
   

更新：对于那些使用让我们加密的人使用这个

var server = https.createServer({ 
                key: fs.readFileSync('privkey.pem'),
                cert: fs.readFileSync('fullchain.pem') 
             }, app);

Answer 4

如果您的服务器证书文件不受信任（例如，您可以在 java 中使用 keytool 命令自行生成密钥库），则应添加额外的选项 rejectUnauthorized

var socket = io.connect('https://localhost', {rejectUnauthorized: false});

Answer 5

检查 this.configuration..

app = module.exports = express();
var httpsOptions = { key: fs.readFileSync('certificates/server.key'), cert: fs.readFileSync('certificates/final.crt') };        
var secureServer = require('https').createServer(httpsOptions, app);
io = module.exports = require('socket.io').listen(secureServer,{pingTimeout: 7000, pingInterval: 10000});
io.set("transports", ["xhr-polling","websocket","polling", "htmlfile"]);
secureServer.listen(3000);

Answer 6

服务器端：

import http from 'http';
import https from 'https';
import SocketIO, { Socket } from 'socket.io';
import fs from 'fs';
import path from 'path';

import { logger } from '../../utils';

const port: number = 3001;

const server: https.Server = https.createServer(
  {
    cert: fs.readFileSync(path.resolve(__dirname, '../../../ssl/cert.pem')),
    key: fs.readFileSync(path.resolve(__dirname, '../../../ssl/key.pem'))
  },
  (req: http.IncomingMessage, res: http.ServerResponse) => {
    logger.info(`request.url: ${req.url}`);

    let filePath = '.' + req.url;
    if (filePath === './') {
      filePath = path.resolve(__dirname, './index.html');
    }

    const extname = String(path.extname(filePath)).toLowerCase();
    const mimeTypes = {
      '.html': 'text/html',
      '.js': 'text/javascript',
      '.json': 'application/json'
    };

    const contentType = mimeTypes[extname] || 'application/octet-stream';

    fs.readFile(filePath, (error: NodeJS.ErrnoException, content: Buffer) => {
      if (error) {
        res.writeHead(500);
        return res.end(error.message);
      }
      res.writeHead(200, { 'Content-Type': contentType });
      res.end(content, 'utf-8');
    });
  }
);

const io: SocketIO.Server = SocketIO(server);

io.on('connection', (socket: Socket) => {
  socket.emit('news', { hello: 'world' });
  socket.on('updateTemplate', data => {
    logger.info(data);
    socket.emit('updateTemplate', { random: data });
  });
});

server.listen(port, () => {
  logger.info(`Https server is listening on https://localhost:${port}`);
});

客户端：

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Websocket Secure Connection</title>
</head>

<body>
  <div>
    <button id='btn'>Send Message</button>
    <ul id='messages'></ul>
  </div>
  <script src='../../../node_modules/socket.io-client/dist/socket.io.js'></script>
  <script>
    window.onload = function onload() {
      const socket = io('https://localhost:3001');
      socket.on('news', function (data) {
        console.log(data);
      });

      socket.on('updateTemplate', function onUpdateTemplate(data) {
        console.log(data)
        createMessage(JSON.stringify(data));
      });
      const $btn = document.getElementById('btn');
      const $messages = document.getElementById('messages');

      function sendMessage() {
        socket.emit('updateTemplate', Math.random());
      }

      function createMessage(msg) {
        const $li = document.createElement('li');
        $li.textContent = msg;
        $messages.appendChild($li);
      }

      $btn.addEventListener('click', sendMessage);
    }
  </script>
</body>

</html>

Answer 7

这是我的 nginx 配置文件和 iosocket 代码。 Server(express) 正在侦听端口 9191。它运行良好： nginx配置文件：

server {
    listen       443 ssl;
    server_name  localhost;
    root   /usr/share/nginx/html/rdist;

    location /user/ {
        proxy_pass   http://localhost:9191;
    }
    location /api/ {
        proxy_pass   http://localhost:9191;
    }
    location /auth/ {
        proxy_pass   http://localhost:9191;
    }

    location / {
        index  index.html index.htm;
        if (!-e $request_filename){
          rewrite ^(.*)$ /index.html break;
        }
    }
    location /socket.io/ {
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_pass   http://localhost:9191/socket.io/;
    }


    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    ssl_certificate /etc/nginx/conf.d/sslcert/xxx.pem;
    ssl_certificate_key /etc/nginx/conf.d/sslcert/xxx.key;

}

服务器：

const server = require('http').Server(app)
const io = require('socket.io')(server)
io.on('connection', (socket) => {
    handleUserConnect(socket)

  socket.on("disconnect", () => {
   handleUserDisConnect(socket)
  });
})

server.listen(9191, function () {
  console.log('Server listening on port 9191')
})

客户（反应）：

    const socket = io.connect('', { secure: true, query: `userId=${this.props.user._id}` })

        socket.on('notifications', data => {
            console.log('Get messages from back end:', data)
            this.props.mergeNotifications(data)
        })

Answer 8

对于企业应用程序，应注意您不应在代码中处理 https。它应该通过 IIS 或 nginx 自动升级。应用不应该知道使用了哪些协议。

Answer 9

根据您的需要，您可以允许安全和不安全的连接，但仍然只使用一个 Socket.io 实例。

您只需实例化两台服务器，一台用于 HTTP，一台用于 HTTPS，然后将这些服务器附加到 Socket.io 实例。

服务器端：

// needed to read certificates from disk
const fs          = require( "fs"    );

// Servers with and without SSL
const http        = require( "http"  )
const https       = require( "https" );
const httpPort    = 3333;
const httpsPort   = 3334;
const httpServer  = http.createServer();
const httpsServer = https.createServer({
    "key" : fs.readFileSync( "yourcert.key" ),
    "cert": fs.readFileSync( "yourcert.crt" ),
    "ca"  : fs.readFileSync( "yourca.crt"   )
});
httpServer.listen( httpPort, function() {
    console.log(  `Listening HTTP on ${httpPort}` );
});
httpsServer.listen( httpsPort, function() {
    console.log(  `Listening HTTPS on ${httpsPort}` );
});

// Socket.io
const ioServer = require( "socket.io" );
const io       = new ioServer();
io.attach( httpServer  );
io.attach( httpsServer );

io.on( "connection", function( socket ) {

    console.log( "user connected" );
    // ... your code

});

客户端：

var url    = "//example.com:" + ( window.location.protocol == "https:" ? "3334" : "3333" );
var socket = io( url, {
    // set to false only if you use self-signed certificate !
    "rejectUnauthorized": true
});
socket.on( "connect", function( e ) {
    console.log( "connect", e );
});

如果您的 NodeJS 服务器与您的 Web 服务器不同，您可能需要设置一些 CORS 标头。所以在服务器端，替换：

const httpServer  = http.createServer();
const httpsServer = https.createServer({
    "key" : fs.readFileSync( "yourcert.key" ),
    "cert": fs.readFileSync( "yourcert.crt" ),
    "ca"  : fs.readFileSync( "yourca.crt"   )
});

与：

const CORS_fn = (req, res) => {
    res.setHeader( "Access-Control-Allow-Origin"     , "*"    );
    res.setHeader( "Access-Control-Allow-Credentials", "true" );
    res.setHeader( "Access-Control-Allow-Methods"    , "*"    );
    res.setHeader( "Access-Control-Allow-Headers"    , "*"    );
    if ( req.method === "OPTIONS" ) {
        res.writeHead(200);
        res.end();
        return;
    }
};
const httpServer  = http.createServer( CORS_fn );
const httpsServer = https.createServer({
        "key" : fs.readFileSync( "yourcert.key" ),
        "cert": fs.readFileSync( "yourcert.crt" ),
        "ca"  : fs.readFileSync( "yourca.crt"   )
}, CORS_fn );

当然还有添加/删除标题并根据您的需要设置标题的值。

Answer 10

服务器端：

var ssl_options = {
    ca: [fs.readFileSync('../ssl/cert1.crt'), fs.readFileSync('../ssl/cert2.crt'), fs.readFileSync('../ssl/cert3.crt')],
    key: fs.readFileSync('../ssl/xxx.key'),
    cert: fs.readFileSync('../ssl/xxx.com.crt'),
};
var wssServer = https.createServer(ssl_options,app);  // Express app
wssServer.listen(4433, '0.0.0.0');
global.io = require("socket.io")();
io.listen(wssServer);
io.on( "connection", function( socket ) {
    console.log( "user connected" );
});

客户端（内置 WebSocket API 运气不佳）：

<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/3.1.3/socket.io.js"></script>
<script>
   const socket = io("https://xxx.co:4433",{ transports: ['websocket', 'polling', 'flashsocket'] });
</script>

Answer 11

如果有人需要更短的表格

var fs = require('fs');
var https = require('https');

var express = require('express');
var app = express();

var options = {
  key: fs.readFileSync('/path-to/ssl.key'),
  cert: fs.readFileSync('/path-to/ssl.cert')
};

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

Answer 12

我需要让它与 Debian 10、ISPConfig 3 和 Let's Encrypt 一起工作。我花了一段时间才弄清楚细节。也许这可以节省其他人一些时间……

服务器端：

const fs = require('fs');
const https = require('https');
const express = require('express');
const socketio = require('socket.io');
const app = express();
const https_options = {
    key: fs.readFileSync('/var/www/clients/client1/web1/ssl/your-domain.com-le.key'),
    cert: fs.readFileSync('/var/www/clients/client1/web1/ssl/your-domain.com-le.crt'),
    ca: fs.readFileSync('/root/.acme.sh/your-domain.com/fullchain.cer'),
    requestCert: false,
    rejectUnauthorized: false
}
const server = https.createServer(https_options, app);
server.listen(3000, () => {
    console.log('server started ok');
});
const io = socketio(server, {
    cors: {
        origin: "https://your-domain.com",
    },
    secure: true
});
io.on('connection', (sock) => {
    console.log('someone connected');
}

客户端：

const sock = io('https://your-domain.com:3000/');    
sock.on('status', (text) => {
    add_text($('#status'), text);
});