Sets a BigPipe no-JS cookie, redirects back to the original location.

Parameters

\Symfony\Component\HttpFoundation\Request $request: The current request.

Return value

\Drupal\Core\Routing\LocalRedirectResponse A response that sets the no-JS cookie and redirects back to the original location.

Throws

\Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException Thrown when the no-JS cookie is already set or when there is no session.

\Symfony\Component\HttpKernel\Exception\HttpException Thrown when the original location is missing, i.e. when no 'destination' query argument is set.

See also

\Drupal\big_pipe\Render\Placeholder\BigPipeStrategy

File

core/modules/big_pipe/src/Controller/BigPipeController.php, line 36

Class

BigPipeController

Returns responses for BigPipe module routes.

Namespace

Drupal\big_pipe\Controller

Code

public function setNoJsCookie(Request $request) {
  // This controller may only be accessed when the browser does not support
  // JavaScript. It is accessed automatically when that's the case thanks to
  // big_pipe_page_attachments(). When this controller is executed, deny
  // access when either:
  // - the no-JS cookie is already set: this indicates a redirect loop, since
  //   the cookie was already set, yet the user is executing this controller;
  // - there is no session, in which case BigPipe is not enabled anyway, so it
  //   is pointless to set this cookie.
  if ($request->cookies
    ->has(BigPipeStrategy::NOJS_COOKIE) || !$request->hasSession()) {
    throw new AccessDeniedHttpException();
  }
  if (!$request->query
    ->has('destination')) {
    throw new HttpException(400, 'The original location is missing.');
  }
  $response = new LocalRedirectResponse($request->query
    ->get('destination'));
  // Set cookie without httpOnly, so that JavaScript can delete it.
  $response->headers
    ->setCookie(new Cookie(BigPipeStrategy::NOJS_COOKIE, TRUE, 0, '/', NULL, FALSE, FALSE, FALSE, NULL));
  $response->addCacheableDependency((new CacheableMetadata())->addCacheContexts([
    'cookies:' . BigPipeStrategy::NOJS_COOKIE,
    'session.exists',
  ]));
  return $response;
}

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