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app.js
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142 lines (128 loc) · 4.09 KB
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var express = require('express'),
routes = require('./routes'),
socketio = require('socket.io'),
config = require('./config'),
store = new express.session.MemoryStore();
var app = module.exports = express.createServer();
var io = socketio.listen(app);
io.set('log level', 0); // reduce logging
// Configuration
app.configure(function(){
app.set('view engine', 'jade');
//app.set('view options', {pretty:true});
app.locals.pretty = true;
app.set('views', __dirname + '/views');
app.set('view options', {pretty: true});
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.cookieParser());
app.use(express.logger('dev'));
app.use(express.session({ store: store, secret: config.secretsauce }));
app.use(require('stylus').middleware({ src: __dirname + '/public' }));
app.use(app.router);
app.use(express.static(__dirname + '/public'));
});
app.configure('development', function(){
app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
});
app.configure('production', function(){
app.use(express.errorHandler());
});
// Routes
app.get('/', routes.index);
app.post('/login', routes.login);
app.get('/logout', routes.logout);
/**
* This function is used to parse a variable value from a cookie string.
* @param {String} cookie_string The cookie to parse.
* @param {String} c_var The variable to extract from the cookie.
* @return {String} The value of the variable extracted.
*/
function getCookie(cookie_string, c_var) {
if(cookie_string) {
var i,x,y,ARRcookies=cookie_string.split(";");
for (i=0;i<ARRcookies.length;i++) {
x=ARRcookies[i].substr(0,ARRcookies[i].indexOf("="));
y=ARRcookies[i].substr(ARRcookies[i].indexOf("=")+1);
x=x.replace(/^\s+|\s+$/g,"");
if (x===c_var) {
return decodeURIComponent(y);
}
}
}
else {
console.log("Invalid cookie");
return "";
}
}
io.sockets.on('connection', function(socket) {
var cookie = getCookie(socket.manager.handshaken[socket.id].headers.cookie, "connect.sid");
store.get(cookie, function(err, sess) {
if(err) {
console.log("Error: " + err);
}
else if(!sess) {
return;
}
else {
// socket joins room based on email
var email = sess.email;
socket.join(email);
}
});
socket.on('disconnect', function() {
// we don't keep track of what calls are ongoing
// so we cannot ad hoc alert the other party that they are leaving
});
socket.on('offer', function(email, offer) {
var cookie = getCookie(socket.manager.handshaken[socket.id].headers.cookie, "connect.sid");
store.get(cookie, function(err, sess) {
if(err) {
console.log("Error: " + err);
}
else {
var from_email = sess.email;
io.sockets.in(email).emit('offer', from_email, offer);
}
});
});
socket.on('endCall', function(email) {
var cookie = getCookie(socket.manager.handshaken[socket.id].headers.cookie, "connect.sid");
store.get(cookie, function(err, sess) {
if(err) {
console.log("Error: " + err);
}
else {
var from_email = sess.email;
io.sockets.in(email).emit('endCall', from_email);
}
});
});
socket.on('answer', function(email, answer, offer) {
var cookie = getCookie(socket.manager.handshaken[socket.id].headers.cookie, "connect.sid");
store.get(cookie, function(err, sess) {
if(err) {
console.log("Error: " + err);
}
else {
var from_email = sess.email;
io.sockets.in(email).emit('answer', from_email, answer, offer);
}
});
});
socket.on('iceCandidate', function(email, cand) {
var cookie = getCookie(socket.manager.handshaken[socket.id].headers.cookie, "connect.sid");
store.get(cookie, function(err, sess) {
if(err) {
console.log("Error: " + err);
}
else {
var from_email = sess.email;
io.sockets.in(email).emit('iceCandidate', from_email, cand);
}
});
});
});
app.listen(config.port, function() {
console.log("Listening on port %d in %s mode", app.address().port, app.settings.env);
});