protected CustomPageExceptionHtmlSubscriber::makeSubrequestToCustomPath(GetResponseForExceptionEvent $event, $custom_path, $status_code)
Makes a subrequest to retrieve the custom error page.
\Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent $event: The event to process.
string $custom_path: The custom path to which to make a subrequest for this error message.
int $status_code: The status code for the error being handled.
protected function makeSubrequestToCustomPath(GetResponseForExceptionEvent $event, $custom_path, $status_code) { $url = Url::fromUserInput($custom_path); if ($url->isRouted()) { $access_result = $this->accessManager->checkNamedRoute($url->getRouteName(), $url->getRouteParameters(), NULL, TRUE); $request = $event->getRequest(); // Merge the custom path's route's access result's cacheability metadata // with the existing one (from the master request), otherwise create it. if (!$request->attributes->has(AccessAwareRouterInterface::ACCESS_RESULT)) { $request->attributes->set(AccessAwareRouterInterface::ACCESS_RESULT, $access_result); } else { $existing_access_result = $request->attributes->get(AccessAwareRouterInterface::ACCESS_RESULT); if ($existing_access_result instanceof RefinableCacheableDependencyInterface) { $existing_access_result->addCacheableDependency($access_result); } } // Only perform the subrequest if the custom path is actually accessible. if (!$access_result->isAllowed()) { return; } } $this->makeSubrequest($event, $custom_path, $status_code); }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!EventSubscriber!CustomPageExceptionHtmlSubscriber.php/function/CustomPageExceptionHtmlSubscriber::makeSubrequestToCustomPath/8.1.x