src/Core/Framework/Routing/CoreSubscriber.php line 39

  1. <?php declare(strict_types=1);
  3. namespace Shopware\Core\Framework\Routing;
  5. use Shopware\Core\Framework\Log\Package;
  6. use Shopware\Core\PlatformRequest;
  7. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  8. use Symfony\Component\HttpKernel\Event\RequestEvent;
  9. use Symfony\Component\HttpKernel\Event\ResponseEvent;
  10. use Symfony\Component\HttpKernel\KernelEvents;
  12. /**
  13.  * @internal
  14.  */
  15. #[Package('core')]
  16. class CoreSubscriber implements EventSubscriberInterface
  17. {
  18.     /**
  19.      * @internal
  20.      *
  21.      * @param array<string> $cspTemplates
  22.      */
  23.     public function __construct(private array $cspTemplates)
  24.     {
  25.         $this->cspTemplates = $cspTemplates;
  26.     }
  28.     /**
  29.      * @return array<string, string|array{0: string, 1: int}|list<array{0: string, 1?: int}>>
  30.      */
  31.     public static function getSubscribedEvents(): array
  32.     {
  33.         return [
  34.             KernelEvents::REQUEST => 'initializeCspNonce',
  35.             KernelEvents::RESPONSE => 'setSecurityHeaders',
  36.         ];
  37.     }
  39.     public function initializeCspNonce(RequestEvent $event): void
  40.     {
  41.         $nonce = base64_encode(random_bytes(8));
  42.         $event->getRequest()->attributes->set(PlatformRequest::ATTRIBUTE_CSP_NONCE, $nonce);
  43.     }
  45.     public function setSecurityHeaders(ResponseEvent $event): void
  46.     {
  47.         if (!$event->getResponse()->isSuccessful()) {
  48.             return;
  49.         }
  51.         $response = $event->getResponse();
  52.         if ($event->getRequest()->isSecure()) {
  53.             $response->headers->set('Strict-Transport-Security', 'max-age=31536000; includeSubDomains');
  54.         }
  55.         $response->headers->set('X-Frame-Options', 'deny');
  56.         $response->headers->set('X-Content-Type-Options', 'nosniff');
  57.         $response->headers->set('Referrer-Policy', 'strict-origin-when-cross-origin');
  59.         $cspTemplate = $this->cspTemplates['default'] ?? '';
  61.         $scopes = $event->getRequest()->attributes->get(PlatformRequest::ATTRIBUTE_ROUTE_SCOPE, []);
  63.         foreach ($scopes as $scope) {
  64.             $cspTemplate = $this->cspTemplates[$scope] ?? $cspTemplate;
  65.         }
  67.         $cspTemplate = trim($cspTemplate);
  68.         if ($cspTemplate !== '' && !$response->headers->has('Content-Security-Policy')) {
  69.             $nonce = $event->getRequest()->attributes->get(PlatformRequest::ATTRIBUTE_CSP_NONCE);
  71.             if (\is_string($nonce)) {
  72.                 $csp = str_replace('%nonce%', $nonce, $cspTemplate);
  73.                 $csp = str_replace(["\n", "\r"], ' ', $csp);
  74.                 $response->headers->set('Content-Security-Policy', $csp);
  75.             }
  76.         }
  77.     }
  78. }