presentazione-papero/plugin/multiplex/index.js

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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) {
console.log(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);
});
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app.get("/fixed.html", function(req, res) {
fs.createReadStream(opts.baseDir + '/fixed.html').pipe(res);
});
app.get("/fixedmaster.html", function(req, res) {
fs.createReadStream(opts.baseDir + '/fixedmaster.html').pipe(res);
});
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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);