From f51b7370f030c5cd1235fa7a23514a7e1ccef2dd Mon Sep 17 00:00:00 2001
From: xnum
Date: Mon, 23 Nov 2015 20:38:26 +0800
Subject: Add Slide Mode using reveal.js and some part of reveal-md

---
 public/plugin/multiplex/index.js | 56 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 public/plugin/multiplex/index.js

(limited to 'public/plugin/multiplex/index.js')

diff --git a/public/plugin/multiplex/index.js b/public/plugin/multiplex/index.js
new file mode 100644
index 00000000..6f5d8b11
--- /dev/null
+++ b/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 );
\ No newline at end of file
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