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108 lines
3.0 KiB
JavaScript
108 lines
3.0 KiB
JavaScript
/*
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standalone-websocket-proxy.js: Example of proxying websockets over HTTP with a standalone HTTP server.
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Copyright (c) 2010 Charlie Robbins, Mikeal Rogers, Fedor Indutny, & Marak Squires.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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var sys = require('sys'),
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http = require('http'),
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colors = require('colors'),
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websocket = require('./../vendor/websocket'),
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httpProxy = require('../../lib/node-http-proxy');
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try {
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var utils = require('socket.io/lib/socket.io/utils'),
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io = require('socket.io');
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}
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catch (ex) {
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console.error('Socket.io is required for this example:');
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console.error('npm ' + 'install'.green + ' socket.io@0.6.18'.magenta);
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process.exit(1);
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}
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//
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// Create the target HTTP server
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//
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var server = http.createServer(function (req, res) {
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res.writeHead(200);
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res.end();
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});
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server.listen(8080);
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//
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// Setup socket.io on the target HTTP server
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//
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var socket = io.listen(server);
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socket.on('connection', function (client) {
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sys.debug('Got websocket connection');
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client.on('message', function (msg) {
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sys.debug('Got message from client: ' + msg);
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});
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socket.broadcast('from server');
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});
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//
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// Setup our server to proxy standard HTTP requests
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//
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var proxy = new httpProxy.HttpProxy();
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var proxyServer = http.createServer(function (req, res) {
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proxy.proxyRequest(req, res, {
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host: 'localhost',
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port: 8080
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})
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});
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//
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// Listen to the `upgrade` event and proxy the
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// WebSocket requests as well.
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//
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proxyServer.on('upgrade', function (req, socket, head) {
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var buffer = httpProxy.buffer(socket);
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setTimeout(function () {
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proxy.proxyWebSocketRequest(req, socket, head, {
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port: 8080,
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host: 'localhost',
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buffer: buffer
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});
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}, 1000);
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});
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proxyServer.listen(8081);
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//
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// Setup the web socket against our proxy
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//
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var ws = new websocket.WebSocket('ws://localhost:8081/socket.io/websocket/', 'borf');
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ws.on('open', function () {
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ws.send(utils.encode('from client'));
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});
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ws.on('message', function (msg) {
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sys.debug('Got message: ' + utils.decode(msg));
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});
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