<?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\HttpKernel\KernelEvents; use Symfony\Component\HttpKernel\Event\GetResponseEvent; use Symfony\Component\HttpKernel\Event\FinishRequestEvent; use Symfony\Component\EventDispatcher\EventDispatcherInterface; use Symfony\Component\EventDispatcher\EventSubscriberInterface; /** * 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; /** * Constructor. * * @param FirewallMapInterface $map A FirewallMapInterface instance * @param EventDispatcherInterface $dispatcher An EventDispatcherInterface instance */ public function __construct(FirewallMapInterface $map, EventDispatcherInterface $dispatcher) { $this->map = $map; $this->dispatcher = $dispatcher; $this->exceptionListeners = new \SplObjectStorage(); } /** * Handles security. * * @param GetResponseEvent $event An GetResponseEvent instance */ public function onKernelRequest(GetResponseEvent $event) { if (!$event->isMasterRequest()) { return; } // register listeners for this firewall list($listeners, $exceptionListener) = $this->map->getListeners($event->getRequest()); if (null !== $exceptionListener) { $this->exceptionListeners[$event->getRequest()] = $exceptionListener; $exceptionListener->register($this->dispatcher); } // initiate the listener chain foreach ($listeners as $listener) { $listener->handle($event); if ($event->hasResponse()) { break; } } } 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', ); } }