var express = require('express'); var fs = require('fs'); var io = require('socket.io'); var crypto = require('crypto'); var app = express.createServer(); var staticDir = express.static; io = io.listen(app); var opts = { port: 1948, baseDir : __dirname + '/../../' }; io.sockets.on('connection', function(socket) { socket.on('slidechanged', function(slideData) { if (createHash(slideData.secret) === slideData.socketId) { slideData.secret = null; socket.broadcast.emit(slideData.socketId, slideData); }; }); }); app.configure(function() { [ 'css', 'js', 'plugin', 'lib' ].forEach(function(dir) { app.use('/' + dir, staticDir(opts.baseDir + dir)); }); }); app.get("/", function(req, res) { fs.createReadStream(opts.baseDir + '/index.html').pipe(res); }); app.get("/token", function(req,res) { var ts = new Date().getTime(); var rand = Math.floor(Math.random()*9999999); var secret = ts.toString() + rand.toString(); res.send({secret: secret, socketId: createHash(secret)}); }); var createHash = function(secret) { var cipher = crypto.createCipher('blowfish', secret); return(cipher.final('hex')); }; // Actually listen app.listen(opts.port || null); var brown = '\033[33m', green = '\033[32m', reset = '\033[0m'; console.log( brown + "reveal.js:" + reset + " Multiplex running on port " + green + opts.port + reset );