Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\hal\LinkManager;
Chris@0: 
Chris@14: use Drupal\serialization\Normalizer\CacheableNormalizerInterface;
Chris@14: 
Chris@0: /**
Chris@0:  * Defines an abstract base-class for HAL link manager objects.
Chris@0:  */
Chris@0: abstract class LinkManagerBase {
Chris@0: 
Chris@0:   /**
Chris@0:    * Link domain used for type links URIs.
Chris@0:    *
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $linkDomain;
Chris@0: 
Chris@0:   /**
Chris@0:    * Config factory service.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Config\ConfigFactoryInterface
Chris@0:    */
Chris@0:   protected $configFactory;
Chris@0: 
Chris@0:   /**
Chris@0:    * The request stack.
Chris@0:    *
Chris@0:    * @var \Symfony\Component\HttpFoundation\RequestStack
Chris@0:    */
Chris@0:   protected $requestStack;
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function setLinkDomain($domain) {
Chris@0:     $this->linkDomain = rtrim($domain, '/');
Chris@0:     return $this;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Gets the link domain.
Chris@0:    *
Chris@14:    * @param array $context
Chris@14:    *   Normalization/serialization context.
Chris@14:    *
Chris@0:    * @return string
Chris@0:    *   The link domain.
Chris@14:    *
Chris@14:    * @see \Symfony\Component\Serializer\Normalizer\NormalizerInterface::normalize()
Chris@14:    * @see \Symfony\Component\Serializer\SerializerInterface::serialize()
Chris@14:    * @see \Drupal\serialization\Normalizer\CacheableNormalizerInterface::SERIALIZATION_CONTEXT_CACHEABILITY
Chris@0:    */
Chris@14:   protected function getLinkDomain(array $context = []) {
Chris@0:     if (empty($this->linkDomain)) {
Chris@0:       if ($domain = $this->configFactory->get('hal.settings')->get('link_domain')) {
Chris@14:         // Bubble the appropriate cacheability metadata whenever possible.
Chris@14:         if (isset($context[CacheableNormalizerInterface::SERIALIZATION_CONTEXT_CACHEABILITY])) {
Chris@14:           $context[CacheableNormalizerInterface::SERIALIZATION_CONTEXT_CACHEABILITY]->addCacheableDependency($this->configFactory->get('hal.settings'));
Chris@14:         }
Chris@14:         return rtrim($domain, '/');
Chris@0:       }
Chris@0:       else {
Chris@14:         // Bubble the relevant cacheability metadata whenever possible.
Chris@14:         if (isset($context[CacheableNormalizerInterface::SERIALIZATION_CONTEXT_CACHEABILITY])) {
Chris@14:           $context[CacheableNormalizerInterface::SERIALIZATION_CONTEXT_CACHEABILITY]->addCacheContexts(['url.site']);
Chris@14:         }
Chris@0:         $request = $this->requestStack->getCurrentRequest();
Chris@14:         return $request->getSchemeAndHttpHost() . $request->getBasePath();
Chris@0:       }
Chris@0:     }
Chris@0:     return $this->linkDomain;
Chris@0:   }
Chris@0: 
Chris@0: }