Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\serialization\EventSubscriber;
Chris@0: 
Chris@0: use Drupal\Core\Routing\RouteBuildEvent;
Chris@0: use Drupal\Core\Routing\RoutingEvents;
Chris@0: use Symfony\Component\EventDispatcher\EventSubscriberInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Alters user authentication routes to support additional serialization formats.
Chris@0:  */
Chris@0: class UserRouteAlterSubscriber implements EventSubscriberInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * The available serialization formats.
Chris@0:    *
Chris@0:    * @var array
Chris@0:    */
Chris@0:   protected $serializerFormats = [];
Chris@0: 
Chris@0:   /**
Chris@0:    * UserRouteAlterSubscriber constructor.
Chris@0:    *
Chris@0:    * @param array $serializer_formats
Chris@0:    *   The available serializer formats.
Chris@0:    */
Chris@0:   public function __construct(array $serializer_formats) {
Chris@0:     $this->serializerFormats = $serializer_formats;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public static function getSubscribedEvents() {
Chris@0:     $events[RoutingEvents::ALTER][] = 'onRoutingAlterAddFormats';
Chris@0:     return $events;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Adds supported formats to the user authentication HTTP routes.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Routing\RouteBuildEvent $event
Chris@0:    *   The event to process.
Chris@0:    */
Chris@0:   public function onRoutingAlterAddFormats(RouteBuildEvent $event) {
Chris@0:     $route_names = [
Chris@0:       'user.login_status.http',
Chris@0:       'user.login.http',
Chris@0:       'user.logout.http',
Chris@0:       'user.pass.http',
Chris@0:     ];
Chris@0:     $routes = $event->getRouteCollection();
Chris@0:     foreach ($route_names as $route_name) {
Chris@0:       if ($route = $routes->get($route_name)) {
Chris@0:         $formats = explode('|', $route->getRequirement('_format'));
Chris@0:         $formats = array_unique(array_merge($formats, $this->serializerFormats));
Chris@0:         $route->setRequirement('_format', implode('|', $formats));
Chris@0:       }
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0: }