moving laravel 4 into develop branch.

app/filters.php

@@ -0,0 +1,64 @@
+<?php
+
+/*
+|--------------------------------------------------------------------------
+| Application & Route Filters
+|--------------------------------------------------------------------------
+|
+| Below you will find the "before" and "after" events for the application
+| which may be used to do any work before or after a request into your
+| application. Here you may also register your custom route filters.
+|
+*/
+
+App::before(function($request)
+{
+	//
+});
+
+
+App::after(function($request, $response)
+{
+	//
+});
+
+/*
+|--------------------------------------------------------------------------
+| Authentication Filters
+|--------------------------------------------------------------------------
+|
+| The following filters are used to verify that the user of the current
+| session is logged into this application. Also, a "guest" filter is
+| responsible for performing the opposite. Both provide redirects.
+|
+*/
+
+Route::filter('auth', function()
+{
+	if (Auth::guest()) return Redirect::route('login');
+});
+
+
+Route::filter('guest', function()
+{
+	if (Auth::check()) return Redirect::to('/');
+});
+
+/*
+|--------------------------------------------------------------------------
+| CSRF Protection Filter
+|--------------------------------------------------------------------------
+|
+| The CSRF filter is responsible for protecting your application against
+| cross-site request forgery attacks. If this special token in a user
+| session does not match the one given in this request, we'll bail.
+|
+*/
+
+Route::filter('csrf', function()
+{
+	if (Session::getToken() != Input::get('csrf_token'))
+	{
+		throw new Illuminate\Session\TokenMismatchException;
+	}
+});