1 <?php

     2 

     3 /*

     4  * This file is part of the Symfony package.

     5  *

     6  * (c) Fabien Potencier <fabien@symfony.com>

     7  *

     8  * For the full copyright and license information, please view the LICENSE

     9  * file that was distributed with this source code.

    10  */

    11 

    12 namespace Symfony\Component\Security\Http;

    13 

    14 use Symfony\Component\HttpKernel\HttpKernelInterface;

    15 use Symfony\Component\HttpKernel\Event\GetResponseEvent;

    16 use Symfony\Component\HttpFoundation\Request;

    17 use Symfony\Component\EventDispatcher\EventDispatcherInterface;

    18 

    19 /**

    20  * Firewall uses a FirewallMap to register security listeners for the given

    21  * request.

    22  *

    23  * It allows for different security strategies within the same application

    24  * (a Basic authentication for the /api, and a web based authentication for

    25  * everything else for instance).

    26  *

    27  * @author Fabien Potencier <fabien@symfony.com>

    28  */

    29 class Firewall

    30 {

    31     private $map;

    32     private $dispatcher;

    33 

    34     /**

    35      * Constructor.

    36      *

    37      * @param FirewallMap              $map        A FirewallMap instance

    38      * @param EventDispatcherInterface $dispatcher An EventDispatcherInterface instance

    39      */

    40     public function __construct(FirewallMapInterface $map, EventDispatcherInterface $dispatcher)

    41     {

    42         $this->map = $map;

    43         $this->dispatcher = $dispatcher;

    44     }

    45 

    46     /**

    47      * Handles security.

    48      *

    49      * @param GetResponseEvent $event An GetResponseEvent instance

    50      */

    51     public function onKernelRequest(GetResponseEvent $event)

    52     {

    53         if (HttpKernelInterface::MASTER_REQUEST !== $event->getRequestType()) {

    54             return;

    55         }

    56 

    57         // register listeners for this firewall

    58         list($listeners, $exception) = $this->map->getListeners($event->getRequest());

    59         if (null !== $exception) {

    60             $exception->register($this->dispatcher);

    61         }

    62 

    63         // initiate the listener chain

    64         foreach ($listeners as $listener) {

    65             $response = $listener->handle($event);

    66 

    67             if ($event->hasResponse()) {

    68                 break;

    69             }

    70         }

    71     }

    72 }