--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/Security/Http/Firewall.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,72 @@
+<?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\HttpKernelInterface;
+use Symfony\Component\HttpKernel\Event\GetResponseEvent;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+
+/**
+ * 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
+{
+    private $map;
+    private $dispatcher;
+
+    /**
+     * Constructor.
+     *
+     * @param FirewallMap              $map        A FirewallMap instance
+     * @param EventDispatcherInterface $dispatcher An EventDispatcherInterface instance
+     */
+    public function __construct(FirewallMapInterface $map, EventDispatcherInterface $dispatcher)
+    {
+        $this->map = $map;
+        $this->dispatcher = $dispatcher;
+    }
+
+    /**
+     * Handles security.
+     *
+     * @param GetResponseEvent $event An GetResponseEvent instance
+     */
+    public function onKernelRequest(GetResponseEvent $event)
+    {
+        if (HttpKernelInterface::MASTER_REQUEST !== $event->getRequestType()) {
+            return;
+        }
+
+        // register listeners for this firewall
+        list($listeners, $exception) = $this->map->getListeners($event->getRequest());
+        if (null !== $exception) {
+            $exception->register($this->dispatcher);
+        }
+
+        // initiate the listener chain
+        foreach ($listeners as $listener) {
+            $response = $listener->handle($event);
+
+            if ($event->hasResponse()) {
+                break;
+            }
+        }
+    }
+}