vendor/shopware/core/Framework/Routing/CoreSubscriber.php line 44

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  1. <?php declare(strict_types=1);
  3. namespace Shopware\Core\Framework\Routing;
  5. use Shopware\Core\Framework\Routing\Annotation\RouteScope as RouteScopeAnnotation;
  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. class CoreSubscriber implements EventSubscriberInterface
  13. {
  14.     /**
  15.      * @var array<string>
  16.      */
  17.     private array $cspTemplates;
  19.     /**
  20.      * @internal
  21.      */
  22.     public function __construct($cspTemplates)
  23.     {
  24.         $this->cspTemplates = (array) $cspTemplates;
  25.     }
  27.     /**
  28.      * @return array<string, string|array{0: string, 1: int}|list<array{0: string, 1?: int}>>
  29.      */
  30.     public static function getSubscribedEvents()
  31.     {
  32.         return [
  33.             KernelEvents::REQUEST => 'initializeCspNonce',
  34.             KernelEvents::RESPONSE => 'setSecurityHeaders',
  35.         ];
  36.     }
  38.     public function initializeCspNonce(RequestEvent $event): void
  39.     {
  40.         $nonce = base64_encode(random_bytes(8));
  41.         $event->getRequest()->attributes->set(PlatformRequest::ATTRIBUTE_CSP_NONCE, $nonce);
  42.     }
  44.     public function setSecurityHeaders(ResponseEvent $event): void
  45.     {
  46.         if (!$event->getResponse()->isSuccessful()) {
  47.             return;
  48.         }
  50.         $response = $event->getResponse();
  51.         if ($event->getRequest()->isSecure()) {
  52.             $response->headers->set('Strict-Transport-Security', 'max-age=31536000; includeSubDomains');
  53.         }
  54.         $response->headers->set('X-Frame-Options', 'deny');
  55.         $response->headers->set('X-Content-Type-Options', 'nosniff');
  56.         $response->headers->set('Referrer-Policy', 'strict-origin-when-cross-origin');
  58.         $cspTemplate = $this->cspTemplates['default'] ?? '';
  60.         $scopes = $event->getRequest()->attributes->get(PlatformRequest::ATTRIBUTE_ROUTE_SCOPE, []);
  61.         if ($scopes instanceof RouteScopeAnnotation) {
  62.             $scopes = $scopes->getScopes();
  63.         }
  65.         foreach ($scopes as $scope) {
  66.             $cspTemplate = $this->cspTemplates[$scope] ?? $cspTemplate;
  67.         }
  69.         $cspTemplate = trim($cspTemplate);
  70.         if ($cspTemplate !== '' && !$response->headers->has('Content-Security-Policy')) {
  71.             $nonce = $event->getRequest()->attributes->get(PlatformRequest::ATTRIBUTE_CSP_NONCE);
  73.             if (\is_string($nonce)) {
  74.                 $csp = str_replace('%nonce%', $nonce, $cspTemplate);
  75.                 $csp = str_replace(["\n", "\r"], ' ', $csp);
  76.                 $response->headers->set('Content-Security-Policy', $csp);
  77.             }
  78.         }
  79.     }
  80. }