1 files changed, 145 insertions, 0 deletions
diff --git a/Http/HttpUtils.php b/Http/HttpUtils.php
new file mode 100644
index 0000000..a293538
--- /dev/null
+++ b/Http/HttpUtils.php
@@ -0,0 +1,145 @@
+<?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\Security\Core\SecurityContextInterface;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+use Symfony\Component\Routing\RouterInterface;
+
+/**
+ * Encapsulates the logic needed to create sub-requests, redirect the user, and match URLs.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class HttpUtils
+{
+    private $router;
+
+    /**
+     * Constructor.
+     *
+     * @param RouterInterface $router An RouterInterface instance
+     */
+    public function __construct(RouterInterface $router = null)
+    {
+        $this->router = $router;
+    }
+
+    /**
+     * Creates a redirect Response.
+     *
+     * @param Request $request A Request instance
+     * @param string  $path    A path (an absolute path (/foo), an absolute URL (http://...), or a route name (foo))
+     * @param integer $status  The status code
+     *
+     * @return Response A RedirectResponse instance
+     */
+    public function createRedirectResponse(Request $request, $path, $status = 302)
+    {
+        if ('/' === $path[0]) {
+            $path = $request->getUriForPath($path);
+        } elseif (0 !== strpos($path, 'http')) {
+            $this->resetLocale($request);
+            $path = $this->generateUrl($path, true);
+        }
+
+        return new RedirectResponse($path, $status);
+    }
+
+    /**
+     * Creates a Request.
+     *
+     * @param Request $request The current Request instance
+     * @param string  $path    A path (an absolute path (/foo), an absolute URL (http://...), or a route name (foo))
+     *
+     * @return Request A Request instance
+     */
+    public function createRequest(Request $request, $path)
+    {
+        if ($path && '/' !== $path[0] && 0 !== strpos($path, 'http')) {
+            $this->resetLocale($request);
+            $path = $this->generateUrl($path, true);
+        }
+
+        $newRequest = Request::create($path, 'get', array(), $request->cookies->all(), array(), $request->server->all());
+        if ($session = $request->getSession()) {
+            $newRequest->setSession($session);
+        }
+
+        if ($request->attributes->has(SecurityContextInterface::AUTHENTICATION_ERROR)) {
+            $newRequest->attributes->set(SecurityContextInterface::AUTHENTICATION_ERROR, $request->attributes->get(SecurityContextInterface::AUTHENTICATION_ERROR));
+        }
+        if ($request->attributes->has(SecurityContextInterface::ACCESS_DENIED_ERROR)) {
+            $newRequest->attributes->set(SecurityContextInterface::ACCESS_DENIED_ERROR, $request->attributes->get(SecurityContextInterface::ACCESS_DENIED_ERROR));
+        }
+        if ($request->attributes->has(SecurityContextInterface::LAST_USERNAME)) {
+            $newRequest->attributes->set(SecurityContextInterface::LAST_USERNAME, $request->attributes->get(SecurityContextInterface::LAST_USERNAME));
+        }
+
+        return $newRequest;
+    }
+
+    /**
+     * Checks that a given path matches the Request.
+     *
+     * @param Request $request A Request instance
+     * @param string  $path    A path (an absolute path (/foo), an absolute URL (http://...), or a route name (foo))
+     *
+     * @return Boolean true if the path is the same as the one from the Request, false otherwise
+     */
+    public function checkRequestPath(Request $request, $path)
+    {
+        if ('/' !== $path[0]) {
+            try {
+                $parameters = $this->router->match($request->getPathInfo());
+
+                return $path === $parameters['_route'];
+            } catch (\Exception $e) {
+                return false;
+            }
+        }
+
+        return $path === $request->getPathInfo();
+    }
+
+    // hack (don't have a better solution for now)
+    private function resetLocale(Request $request)
+    {
+        $context = $this->router->getContext();
+        if ($context->getParameter('_locale')) {
+            return;
+        }
+
+        try {
+            $parameters = $this->router->match($request->getPathInfo());
+
+            if (isset($parameters['_locale'])) {
+                $context->setParameter('_locale', $parameters['_locale']);
+            } elseif ($session = $request->getSession()) {
+                $context->setParameter('_locale', $session->getLocale());
+            }
+        } catch (\Exception $e) {
+            // let's hope user doesn't use the locale in the path
+        }
+    }
+
+    private function generateUrl($route, $absolute = false)
+    {
+        if (null === $this->router) {
+            throw new \LogicException('You must provide a RouterInterface instance to be able to use routes.');
+        }
+
+        return $this->router->generate($route, array(), $absolute);
+    }
+}