public function RenderArrayNonHtmlSubscriber::onRespond in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/EventSubscriber/RenderArrayNonHtmlSubscriber.php \Drupal\Core\EventSubscriber\RenderArrayNonHtmlSubscriber::onRespond()

Throws an HTTP 406 error if client requested a non-HTML format.

Parameters

\Symfony\Component\HttpKernel\Event\ViewEvent $event: The event to process.

File

core/lib/Drupal/Core/EventSubscriber/RenderArrayNonHtmlSubscriber.php, line 21

Class

RenderArrayNonHtmlSubscriber

Throws 406 if requesting non-HTML format and controller returns render array.

Namespace

Drupal\Core\EventSubscriber

Code

public function onRespond(ViewEvent $event) {
  $request = $event
    ->getRequest();
  $result = $event
    ->getControllerResult();

  // If this is a render array then we assume that the router went with the
  // generic controller and not one with a format. If the format requested is
  // not HTML though, we can also assume that the requested format is invalid
  // so we provide a 406 response.
  if (is_array($result) && $request
    ->getRequestFormat() !== 'html') {
    throw new NotAcceptableHttpException('Not acceptable format: ' . $request
      ->getRequestFormat());
  }
}