server.js

//Module dependencies:

var express = require("express");
var app = express();

var http = require("http").createServer(app);
var bodyParser = require("body-parser");
var io = require("socket.io").listen(http);
var _ = require("underscore");
var mongo = require("mongodb");
var monk = require("monk");
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var cookieSession = require('cookie-session');
var async = require('async');
var nodemailer = require('nodemailer');
var passwordHash = require('password-hash');
var generatePassword = require('password-generator');

var db = monk( (process.env.MONGOHQ_URL || "localhost:27017/newchatroom") );

//Load controllers.

var homeController = require('./routes/home');
var userController = require('./routes/user');
var forgotpassController = require('./routes/forgotpass');
var chatController = require('./routes/chat');


//Server config.

app.set("port", (process.env.PORT || 8080) );
app.set("views", __dirname + "/views");
app.set("view engine", "jade");
app.use(express.static("public", __dirname + "/public"));
app.use(bodyParser.json());
app.use(logger('dev'));
app.use(cookieParser());
app.use(bodyParser.urlencoded({
  extended: true
}));
app.use(cookieSession({
  name: 'cihl-express-cookie',
  secret: 'ourSecret'
}))

// create reusable transporter object using SMTP transport
var transporter = nodemailer.createTransport({
  service: 'Gmail',
  auth: {
      user: 'cihl.robot@gmail.com',
      pass: 'robot<>robot'
  }
});


app.use(function(req,res,next){
    req.db = db;
    req.io = io;
    req._ = _;
    req.participants = participants;
    req.async = async;
    req.transporter = transporter;
    req.passwordHash = passwordHash;
    req.generatePassword = generatePassword;
    next();
});

//Application routes.
 
app.get('/', homeController.index);
app.get('/login', userController.getLogin);
app.post('/login', userController.postLogin);
app.get('/logout', userController.logout);
app.get('/register', userController.getRegister);
app.post('/register', userController.postRegister);
app.get('/chat', chatController.getChatroom);
app.post('/chat', chatController.postMessage);
app.get('/forgotpass', forgotpassController.getForgotPass);
app.post('/forgotpass', forgotpassController.postForgotPass);

/* Socket IO events
The basic idea with socket.io: socket.on("somepredefinedevent", function() {io.sockets.emit("emitThisInformationToAllClientsAndCaptureWithJquery", {the info emitted is json in here}); });
*/
 
var participants = [];

io.on("connection", function(socket){

  socket.on("newUser", function(data) {
    participants.push({id: data.id, name: data.name});
    io.sockets.emit("newConnection", {participants: participants});
  });

  socket.on("disconnect", function() {
    participants = _.without(participants,_.findWhere(participants, {id: socket.id}));
    io.sockets.emit("userDisconnected", {id: socket.id, sender:"system"});
  });

});

http.listen(app.get("port"), app.get("ipaddr"), function() {
  console.log("Server up and running. Go to http://" + /*app.get("ipaddr") +*/ ":" + app.get("port"));
});

module.exports = app;