vendor/ezsystems/ezplatform-http-cache/src/EventSubscriber/HttpCacheResponseSubscriber.php line 42

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  1. <?php
  3. /**
  4.  * @copyright Copyright (C) eZ Systems AS. All rights reserved.
  5.  * @license For full copyright and license information view LICENSE file distributed with this source code.
  6.  */
  7. namespace EzSystems\PlatformHttpCacheBundle\EventSubscriber;
  9. use EzSystems\PlatformHttpCacheBundle\ResponseConfigurator\ResponseCacheConfigurator;
  10. use EzSystems\PlatformHttpCacheBundle\ResponseTagger\ResponseTagger;
  11. use eZ\Publish\Core\MVC\Symfony\View\CachableView;
  12. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  13. use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
  14. use Symfony\Component\HttpKernel\KernelEvents;
  16. /**
  17.  * Configures the Response HTTP cache properties.
  18.  */
  19. class HttpCacheResponseSubscriber implements EventSubscriberInterface
  20. {
  21.     /**
  22.      * @var \EzSystems\PlatformHttpCacheBundle\ResponseTagger\ResponseTagger
  23.      */
  24.     private $dispatcherTagger;
  26.     /**
  27.      * @var \EzSystems\PlatformHttpCacheBundle\ResponseConfigurator\ResponseCacheConfigurator
  28.      */
  29.     private $responseConfigurator;
  31.     public function __construct(ResponseCacheConfigurator $responseConfigurator, ResponseTagger $dispatcherTagger)
  32.     {
  33.         $this->responseConfigurator = $responseConfigurator;
  34.         $this->dispatcherTagger = $dispatcherTagger;
  35.     }
  37.     public static function getSubscribedEvents()
  38.     {
  39.         return [KernelEvents::RESPONSE => ['configureCache', 10]];
  40.     }
  42.     public function configureCache(FilterResponseEvent $event)
  43.     {
  44.         $view = $event->getRequest()->attributes->get('view');
  45.         if (!$view instanceof CachableView || !$view->isCacheEnabled()) {
  46.             return;
  47.         }
  49.         $response = $event->getResponse();
  50.         $this->responseConfigurator->enableCache($response);
  51.         $this->responseConfigurator->setSharedMaxAge($response);
  52.         $this->dispatcherTagger->tag($view);
  54.         // NB!: FOSHTTPCacheBundle is taking care about writing the tags in own tag handler happening with priority 0
  55.     }
  56. }