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   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\HttpKernel\DataCollector;
  13  
  14  use Symfony\Component\HttpFoundation\RedirectResponse;
  15  use Symfony\Component\HttpFoundation\Request;
  16  use Symfony\Component\HttpFoundation\Response;
  17  use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
  18  
  19  /**
  20   * RouterDataCollector.
  21   *
  22   * @author Fabien Potencier <fabien@symfony.com>
  23   */
  24  class RouterDataCollector extends DataCollector
  25  {
  26      protected $controllers;
  27  
  28      public function __construct()
  29      {
  30          $this->controllers = new \SplObjectStorage();
  31  
  32          $this->data = array(
  33              'redirect' => false,
  34              'url' => null,
  35              'route' => null,
  36          );
  37      }
  38  
  39      /**
  40       * {@inheritdoc}
  41       */
  42      public function collect(Request $request, Response $response, \Exception $exception = null)
  43      {
  44          if ($response instanceof RedirectResponse) {
  45              $this->data['redirect'] = true;
  46              $this->data['url'] = $response->getTargetUrl();
  47  
  48              if ($this->controllers->contains($request)) {
  49                  $this->data['route'] = $this->guessRoute($request, $this->controllers[$request]);
  50              }
  51          }
  52  
  53          unset($this->controllers[$request]);
  54      }
  55  
  56      protected function guessRoute(Request $request, $controller)
  57      {
  58          return 'n/a';
  59      }
  60  
  61      /**
  62       * Remembers the controller associated to each request.
  63       */
  64      public function onKernelController(FilterControllerEvent $event)
  65      {
  66          $this->controllers[$event->getRequest()] = $event->getController();
  67      }
  68  
  69      /**
  70       * @return bool Whether this request will result in a redirect
  71       */
  72      public function getRedirect()
  73      {
  74          return $this->data['redirect'];
  75      }
  76  
  77      /**
  78       * @return string|null The target URL
  79       */
  80      public function getTargetUrl()
  81      {
  82          return $this->data['url'];
  83      }
  84  
  85      /**
  86       * @return string|null The target route
  87       */
  88      public function getTargetRoute()
  89      {
  90          return $this->data['route'];
  91      }
  92  
  93      /**
  94       * {@inheritdoc}
  95       */
  96      public function getName()
  97      {
  98          return 'router';
  99      }
 100  }