text: var express = require('express');
  var path = require('path');
  var favicon = require('serve-favicon');
  var logger = require('morgan');
  var cookieParser = require('cookie-parser');
  var bodyParser = require('body-parser');
  var partials = require('express-partials');
  var methodOverride = require('method-override');
  var routes = require('./routes/index');
  var session = require('express-session');
  
  var app = express();
  
  // view engine setup
  app.set('views', path.join(__dirname, 'views'));
  app.set('view engine', 'ejs');
  
  app.use(partials());
  
  // uncomment after placing your favicon in /public
  app.use(favicon(__dirname + '/public/images/favicon.ico'));
  app.use(logger('dev'));
  app.use(bodyParser.json());
  // app.use(bodyParser.urlencoded({ extended: false }));
  app.use(bodyParser.urlencoded());
  app.use(cookieParser('Quiz 2015'));
  app.use(session());
  app.use(methodOverride('_method'));
  app.use(express.static(path.join(__dirname, 'public')));
  
  // 2 minutos
  var timeOut = 2 * 60 * 1000;
  
  // función de control del tiempo de session
  var isTimeOutConnection = function (req) {
  	var timeNow = new Date().getTime();
  	console.log('Ultima conexion = ' + timeNow);
  	if (!req.session.lastConnectionSession) {
  		req.session.lastConnectionSession = timeNow;
  	}
  	var currentTime = timeNow - req.session.lastConnectionSession;
  	console.log('Diferencia conexion = ' + currentTime);
  	var isTimeOut = currentTime > timeOut;
  	req.session.lastConnectionSession = timeNow;
  	return isTimeOut;
  	
  };
  
  // Helpers dinamicos:
  app.use(function (req, res, next) {
  	// guardar path en session.redir para después de login
  	if (!req.path.match(/\/login|\/logout/)) {
  		req.session.redir = req.path;
  	}
  	// Hacer visible req.session en las vistas
  	res.locals.session = req.session;
  	if (isTimeOutConnection(req) && req.session.user) {
  		delete req.session.user;
  		res.status(599);
          res.render('error', {
              message: 'Network connect timeout error',
              error: {},
              errors: []
          });
  	}
  	next();
  });
  
  app.use('/', routes);
  
  // catch 404 and forward to error handler
  app.use(function(req, res, next) {
      var err = new Error('Not Found');
      err.status = 404;
      next(err);
  });
  
  // error handlers
  
  // development error handler
  // will print stacktrace
  if (app.get('env') === 'development') {
      app.use(function(err, req, res, next) {
          res.status(err.status || 500);
          res.render('error', {
              message: err.message,
              error: err,
              errors: []
          });
      });
  }
  
  // production error handler
  // no stacktraces leaked to user
  app.use(function(err, req, res, next) {
      res.status(err.status || 500);
      res.render('error', {
          message: err.message,
          error: {},
          errors: []
      });
  });
  
  
  module.exports = app;
  