src/EventSubscriber/TrackingCookieSubscriber.php line 30

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  1. <?php
  3. namespace App\EventSubscriber;
  5. use App\Service\StdTrackingService;
  6. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  7. use Symfony\Component\HttpKernel\Event\ResponseEvent;
  8. use Symfony\Component\HttpKernel\KernelEvents;
  10. /**
  11.  * Automatically sets the persistent tracking cookie on responses
  12.  * This ensures the tracking ID cookie is sent to the browser independently of sessions
  13.  */
  14. class TrackingCookieSubscriber implements EventSubscriberInterface
  15. {
  16.     private StdTrackingService $trackingService;
  18.     public function __construct(StdTrackingService $trackingService)
  19.     {
  20.         $this->trackingService = $trackingService;
  21.     }
  23.     public static function getSubscribedEvents(): array
  24.     {
  25.         return [
  26.             KernelEvents::RESPONSE => ['onKernelResponse', 0],
  27.         ];
  28.     }
  30.     public function onKernelResponse(ResponseEvent $event): void
  31.     {
  32.         if (!$event->isMainRequest()) {
  33.             return;
  34.         }
  36.         // Check if there's a pending tracking cookie to set
  37.         $cookie = $this->trackingService->getPendingTrackingCookie();
  38.         
  39.         if ($cookie) {
  40.             $response = $event->getResponse();
  41.             $response->headers->setCookie($cookie);
  42.             
  43.             // Clear the pending cookie after setting it
  44.             $this->trackingService->clearPendingTrackingCookie();
  45.         }
  46.     }
  47. }