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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Security\Http;
- use Symfony\Component\EventDispatcher\EventDispatcherInterface;
- use Symfony\Component\EventDispatcher\EventSubscriberInterface;
- use Symfony\Component\HttpKernel\Event\FinishRequestEvent;
- use Symfony\Component\HttpKernel\Event\GetResponseEvent;
- use Symfony\Component\HttpKernel\KernelEvents;
- use Symfony\Component\Security\Http\Firewall\AccessListener;
- /**
- * Firewall uses a FirewallMap to register security listeners for the given
- * request.
- *
- * It allows for different security strategies within the same application
- * (a Basic authentication for the /api, and a web based authentication for
- * everything else for instance).
- *
- * @author Fabien Potencier <fabien@symfony.com>
- */
- class Firewall implements EventSubscriberInterface
- {
- private $map;
- private $dispatcher;
- private $exceptionListeners;
- public function __construct(FirewallMapInterface $map, EventDispatcherInterface $dispatcher)
- {
- $this->map = $map;
- $this->dispatcher = $dispatcher;
- $this->exceptionListeners = new \SplObjectStorage();
- }
- public function onKernelRequest(GetResponseEvent $event)
- {
- if (!$event->isMasterRequest()) {
- return;
- }
- // register listeners for this firewall
- $listeners = $this->map->getListeners($event->getRequest());
- $authenticationListeners = $listeners[0];
- $exceptionListener = $listeners[1];
- $logoutListener = isset($listeners[2]) ? $listeners[2] : null;
- if (null !== $exceptionListener) {
- $this->exceptionListeners[$event->getRequest()] = $exceptionListener;
- $exceptionListener->register($this->dispatcher);
- }
- $accessListener = null;
- // initiate the listener chain
- foreach ($authenticationListeners as $listener) {
- if ($listener instanceof AccessListener) {
- $accessListener = $listener;
- continue;
- }
- $listener->handle($event);
- if ($event->hasResponse()) {
- break;
- }
- }
- if (null !== $logoutListener) {
- $logoutListener->handle($event);
- }
- if (!$event->hasResponse() && null !== $accessListener) {
- $accessListener->handle($event);
- }
- }
- public function onKernelFinishRequest(FinishRequestEvent $event)
- {
- $request = $event->getRequest();
- if (isset($this->exceptionListeners[$request])) {
- $this->exceptionListeners[$request]->unregister($this->dispatcher);
- unset($this->exceptionListeners[$request]);
- }
- }
- /**
- * {@inheritdoc}
- */
- public static function getSubscribedEvents()
- {
- return array(
- KernelEvents::REQUEST => array('onKernelRequest', 8),
- KernelEvents::FINISH_REQUEST => 'onKernelFinishRequest',
- );
- }
- }
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