WebSocket协议的Node.js实现：WebSocket-Node
jopen
10年前
WebSocket-Node 是对 WebSocket 协议实现的 Node.js 扩展(Draft -08 through the final RFC 6455)。
- Licensed under the Apache License, Version 2.0
- Protocol version "8" and "13" (Draft-08 through the final RFC) framing and handshake
- Can handle/aggregate received fragmented messages
- Can fragment outgoing messages
- Router to mount multiple applications to various path and protocol combinations
- TLS supported for outbound connections via WebSocketClient
- TLS supported for server connections (use https.createServer instead of http.createServer)
- Thanks to pors for confirming this!
- Cookie setting and parsing
- Tunable settings
- Max Receivable Frame Size
- Max Aggregate ReceivedMessage Size
- Whether to fragment outgoing messages
- Fragmentation chunk size for outgoing messages
- Whether to automatically send ping frames for the purposes of keepalive
- Keep-alive ping interval
- Whether or not to automatically assemble received fragments (allows application to handle individual fragments directly)
- How long to wait after sending a close frame for acknowledgment before closing the socket.
浏览器支持情况：
- Firefox 7-9 (Old) (Protocol Version 8)
- Firefox 10+ (Protocol Version 13)
- Chrome 14,15 (Old) (Protocol Version 8)
- Chrome 16+ (Protocol Version 13)
- Internet Explorer 10 (Preview) (Protocol Version 13)
- Safari 6 (Protocol Version 13)
服务器端示例代码：
#!/usr/bin/env node var WebSocketServer = require('websocket').server; var http = require('http'); var server = http.createServer(function(request, response) { console.log((new Date()) + ' Received request for ' + request.url); response.writeHead(404); response.end(); }); server.listen(8080, function() { console.log((new Date()) + ' Server is listening on port 8080'); }); wsServer = new WebSocketServer({ httpServer: server, // You should not use autoAcceptConnections for production // applications, as it defeats all standard cross-origin protection // facilities built into the protocol and the browser. You should // *always* verify the connection's origin and decide whether or not // to accept it. autoAcceptConnections: false }); function originIsAllowed(origin) { // put logic here to detect whether the specified origin is allowed. return true; } wsServer.on('request', function(request) { if (!originIsAllowed(request.origin)) { // Make sure we only accept requests from an allowed origin request.reject(); console.log((new Date()) + ' Connection from origin ' + request.origin + ' rejected.'); return; } var connection = request.accept('echo-protocol', request.origin); console.log((new Date()) + ' Connection accepted.'); connection.on('message', function(message) { if (message.type === 'utf8') { console.log('Received Message: ' + message.utf8Data); connection.sendUTF(message.utf8Data); } else if (message.type === 'binary') { console.log('Received Binary Message of ' + message.binaryData.length + ' bytes'); connection.sendBytes(message.binaryData); } }); connection.on('close', function(reasonCode, description) { console.log((new Date()) + ' Peer ' + connection.remoteAddress + ' disconnected.'); }); });