public function CspSubscriber::onCspPolicyAlter in Blazy 8.2

Alter CSP policy to allow data img-src.

Parameters

\Drupal\csp\Event\PolicyAlterEvent $alterEvent: The Policy Alter event.

File

src/EventSubscriber/CspSubscriber.php, line 51

Class

CspSubscriber

Alter CSP policy for Blazy.

Namespace

Drupal\blazy\EventSubscriber

Code

public function onCspPolicyAlter(PolicyAlterEvent $alterEvent) : void {
  $policy = $alterEvent
    ->getPolicy();
  $response = $alterEvent
    ->getResponse();
  if ($response instanceof AttachmentsInterface) {
    $attachments = $response
      ->getAttachments();
    $libraries = isset($attachments['library']) ? $this->libraryDependencyResolver
      ->getLibrariesWithDependencies($attachments['library']) : [];
    if (in_array('blazy/load', $libraries)) {
      $policy
        ->fallbackAwareAppendIfEnabled('img-src', [
        'data:',
      ]);
    }
  }
}