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@@ -0,0 +1,64 @@
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+var http = require('http');
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+var express = require('express');
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+var fs = require('fs');
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+var io = require('socket.io');
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+var crypto = require('crypto');
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+
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+var app = express();
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+var staticDir = express.static;
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+var server = http.createServer(app);
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+
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+io = io(server);
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+
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+var opts = {
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+ port: process.env.PORT || 1948,
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+ baseDir : __dirname + '/../../'
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+};
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+
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+io.on( 'connection', function( socket ) {
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+ socket.on('multiplex-statechanged', function(data) {
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+ if (typeof data.secret == 'undefined' || data.secret == null || data.secret === '') return;
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+ if (createHash(data.secret) === data.socketId) {
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+ data.secret = null;
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+ socket.broadcast.emit(data.socketId, data);
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+ };
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+ });
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+});
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+
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+[ 'css', 'js', 'plugin', 'lib' ].forEach(function(dir) {
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+ app.use('/' + dir, staticDir(opts.baseDir + dir));
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+});
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+
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+app.get("/", function(req, res) {
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+ res.writeHead(200, {'Content-Type': 'text/html'});
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+
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+ var stream = fs.createReadStream(opts.baseDir + '/index.html');
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+ stream.on('error', function( error ) {
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+ res.write('<style>body{font-family: sans-serif;}</style><h2>reveal.js multiplex server.</h2><a href="/token">Generate token</a>');
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+ res.end();
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+ });
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+ stream.on('readable', function() {
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+ stream.pipe(res);
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+ });
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+});
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+
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+app.get("/token", function(req,res) {
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+ var ts = new Date().getTime();
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+ var rand = Math.floor(Math.random()*9999999);
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+ var secret = ts.toString() + rand.toString();
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+ res.send({secret: secret, socketId: createHash(secret)});
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+});
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+
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+var createHash = function(secret) {
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+ var cipher = crypto.createCipher('blowfish', secret);
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+ return(cipher.final('hex'));
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+};
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+
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+// Actually listen
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+server.listen( opts.port || null );
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+
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+var brown = '\033[33m',
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+ green = '\033[32m',
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+ reset = '\033[0m';
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+
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+console.log( brown + "reveal.js:" + reset + " Multiplex running on port " + green + opts.port + reset );
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