Add Slide Mode

using reveal.js
and some part of reveal-md

public/plugin/multiplex/index.js

@@ -0,0 +1,56 @@
+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 (typeof slideData.secret == 'undefined' || slideData.secret == null || slideData.secret === '') return;
+		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) {
+	res.writeHead(200, {'Content-Type': 'text/html'});
+	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 );