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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\EventSubscriber\EnforcedFormResponseSubscriber. | |
| */ | |
| namespace Drupal\Core\EventSubscriber; | |
| use Drupal\Core\Form\EnforcedResponse; | |
| use Symfony\Component\EventDispatcher\EventSubscriberInterface; | |
| use Symfony\Component\HttpKernel\Event\FilterResponseEvent; | |
| use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent; | |
| use Symfony\Component\HttpKernel\HttpKernelInterface; | |
| use Symfony\Component\HttpKernel\KernelEvents; | |
| /** | |
| * Handle the EnforcedResponseException and deliver an EnforcedResponse. | |
| */ | |
| class EnforcedFormResponseSubscriber implements EventSubscriberInterface { | |
| /** | |
| * Replaces the response in case an EnforcedResponseException was thrown. | |
| */ | |
| public function onKernelException(GetResponseForExceptionEvent $event) { | |
| if ($response = EnforcedResponse::createFromException($event->getException())) { | |
| // Setting the response stops the event propagation. | |
| $event->setResponse($response); | |
| } | |
| } | |
| /** | |
| * Unwraps an enforced response. | |
| */ | |
| public function onKernelResponse(FilterResponseEvent $event) { | |
| $response = $event->getResponse(); | |
| if ($response instanceof EnforcedResponse && $event->getRequestType() === HttpKernelInterface::MASTER_REQUEST) { | |
| $event->setResponse($response->getResponse()); | |
| } | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public static function getSubscribedEvents() { | |
| $events[KernelEvents::EXCEPTION] = array('onKernelException', 128); | |
| $events[KernelEvents::RESPONSE] = array('onKernelResponse', 128); | |
| return $events; | |
| } | |
| } |