vendor/sulu/sulu/src/Sulu/Bundle/HttpCacheBundle/CacheLifetime/CacheLifetimeEnhancer.php line 81

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  1. <?php
  3. /*
  4.  * This file is part of Sulu.
  5.  *
  6.  * (c) Sulu GmbH
  7.  *
  8.  * This source file is subject to the MIT license that is bundled
  9.  * with this source code in the file LICENSE.
  10.  */
  12. namespace Sulu\Bundle\HttpCacheBundle\CacheLifetime;
  14. use Sulu\Bundle\HttpCacheBundle\Cache\SuluHttpCache;
  15. use Sulu\Component\Content\Compat\PageInterface;
  16. use Sulu\Component\Content\Compat\StructureInterface;
  17. use Symfony\Component\HttpFoundation\Response;
  19. class CacheLifetimeEnhancer implements CacheLifetimeEnhancerInterface
  20. {
  21.     /**
  22.      * @var CacheLifetimeResolverInterface
  23.      */
  24.     private $cacheLifetimeResolver;
  26.     /**
  27.      * @var int
  28.      */
  29.     private $maxAge;
  31.     /**
  32.      * @var int
  33.      */
  34.     private $sharedMaxAge;
  36.     /**
  37.      * @var CacheLifetimeRequestStore
  38.      */
  39.     private $cacheLifetimeRequestStore;
  41.     public function __construct(
  42.         CacheLifetimeResolverInterface $cacheLifetimeResolver,
  43.         $maxAge,
  44.         $sharedMaxAge,
  45.         CacheLifetimeRequestStore $cacheLifetimeRequestStore
  46.     ) {
  47.         $this->cacheLifetimeResolver = $cacheLifetimeResolver;
  48.         $this->maxAge = $maxAge;
  49.         $this->sharedMaxAge = $sharedMaxAge;
  50.         $this->cacheLifetimeRequestStore = $cacheLifetimeRequestStore;
  51.     }
  53.     public function enhance(Response $response, StructureInterface $structure)
  54.     {
  55.         if (!$structure instanceof PageInterface) {
  56.             return;
  57.         }
  59.         $cacheLifetimeData = $structure->getCacheLifeTime();
  60.         $cacheLifetime = $this->cacheLifetimeResolver->resolve(
  61.             $cacheLifetimeData['type'],
  62.             $cacheLifetimeData['value']
  63.         );
  65.         $requestCacheLifetime = $this->cacheLifetimeRequestStore->getCacheLifetime();
  67.         if (null !== $requestCacheLifetime && $requestCacheLifetime < $cacheLifetime) {
  68.             $cacheLifetime = $requestCacheLifetime;
  69.         }
  71.         // when structure cache-lifetime disabled - return
  72.         if (0 === $cacheLifetime) {
  73.             return;
  74.         }
  76.         $response->setPublic();
  77.         $response->setMaxAge($this->maxAge);
  78.         $response->setSharedMaxAge($this->sharedMaxAge);
  80.         // set reverse-proxy TTL (Symfony HttpCache, Varnish, ...) to avoid caching of intermediate proxies
  81.         $response->headers->set(SuluHttpCache::HEADER_REVERSE_PROXY_TTL, $cacheLifetime);
  82.     }
  83. }