From da9fe108b07ff07d6e11fff3820386877fd2fee0 Mon Sep 17 00:00:00 2001
From: Varac <varac@leap.se>
Date: Fri, 29 Dec 2017 11:55:05 +0100
Subject: Add generated slides

---
 platform-workshop/slides/plugin/multiplex/index.js | 64 ++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 platform-workshop/slides/plugin/multiplex/index.js

(limited to 'platform-workshop/slides/plugin/multiplex/index.js')

diff --git a/platform-workshop/slides/plugin/multiplex/index.js b/platform-workshop/slides/plugin/multiplex/index.js
new file mode 100644
index 0000000..8195f04
--- /dev/null
+++ b/platform-workshop/slides/plugin/multiplex/index.js
@@ -0,0 +1,64 @@
+var http        = require('http');
+var express		= require('express');
+var fs			= require('fs');
+var io			= require('socket.io');
+var crypto		= require('crypto');
+
+var app       	= express();
+var staticDir 	= express.static;
+var server    	= http.createServer(app);
+
+io = io(server);
+
+var opts = {
+	port: process.env.PORT || 1948,
+	baseDir : __dirname + '/../../'
+};
+
+io.on( 'connection', function( socket ) {
+	socket.on('multiplex-statechanged', function(data) {
+		if (typeof data.secret == 'undefined' || data.secret == null || data.secret === '') return;
+		if (createHash(data.secret) === data.socketId) {
+			data.secret = null;
+			socket.broadcast.emit(data.socketId, data);
+		};
+	});
+});
+
+[ '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'});
+
+	var stream = fs.createReadStream(opts.baseDir + '/index.html');
+	stream.on('error', function( error ) {
+		res.write('<style>body{font-family: sans-serif;}</style><h2>reveal.js multiplex server.</h2><a href="/token">Generate token</a>');
+		res.end();
+	});
+	stream.on('readable', function() {
+		stream.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
+server.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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