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<?php |
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/** |
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* listener that invalidates a server cache in front of graviton, if so configured |
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*/ |
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namespace Graviton\CacheBundle\Listener; |
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use FOS\HttpCacheBundle\CacheManager; |
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use FOS\HttpCacheBundle\Http\SymfonyResponseTagger; |
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use Symfony\Component\HttpKernel\Event\FilterResponseEvent; |
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/** |
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* @author List of contributors <https://github.com/libgraviton/graviton/graphs/contributors> |
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License |
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* @link http://swisscom.ch |
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*/ |
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class ProxyCacheListener |
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{ |
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/** |
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* @var SymfonyResponseTagger |
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*/ |
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private $responseTagger; |
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/** |
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* @var CacheManager |
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*/ |
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private $cacheManager; |
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/** |
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* which methods should be tagged |
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* |
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* @var array |
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*/ |
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private $tagOnMethodes = [ |
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'GET', |
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'OPTIONS', |
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'HEAD' |
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]; |
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/** |
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* tag that every item should receive |
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* |
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* @var array |
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*/ |
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private $baseTags = [ |
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'all' |
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]; |
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/** |
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* set ResponseTagger |
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* |
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* @param SymfonyResponseTagger $responseTagger responseTagger |
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* |
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* @return void |
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*/ |
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public function setResponseTagger($responseTagger) |
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{ |
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$this->responseTagger = $responseTagger; |
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} |
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/** |
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* set CacheManager |
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* |
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* @param CacheManager $cacheManager cacheManager |
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* |
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* @return void |
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*/ |
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public function setCacheManager($cacheManager) |
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{ |
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$this->cacheManager = $cacheManager; |
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} |
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/** |
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* add a IfNoneMatch header to the response |
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* |
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* @param FilterResponseEvent $event response listener event |
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* |
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* @return void |
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*/ |
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public function onKernelResponse(FilterResponseEvent $event) |
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{ |
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$routeName = $event->getRequest()->get('_route'); |
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$routeParts = explode('.', $routeName); |
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$routeType = end($routeParts); |
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array_pop($routeParts); |
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$tags = [implode('.', $routeParts)]; |
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if (in_array($event->getRequest()->getMethod(), $this->tagOnMethodes)) { |
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$this->responseTagger->addTags(array_merge($this->baseTags, $tags)); |
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} else { |
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// if something is done within i18n, we delete everything |
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if ($routeParts[1] == 'i18n') { |
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$tags[] = 'all'; |
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} |
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$this->cacheManager->invalidateTags($tags); |
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} |
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} |
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} |
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libgraviton /
graviton
