diff core/modules/jsonapi/src/EventSubscriber/DefaultExceptionSubscriber.php @ 18:af1871eacc83

Update to Drupal core 8.7.1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/jsonapi/src/EventSubscriber/DefaultExceptionSubscriber.php	Thu May 09 15:33:08 2019 +0100
@@ -0,0 +1,84 @@
+<?php
+
+namespace Drupal\jsonapi\EventSubscriber;
+
+use Drupal\jsonapi\JsonApiResource\ErrorCollection;
+use Drupal\jsonapi\JsonApiResource\JsonApiDocumentTopLevel;
+use Drupal\jsonapi\JsonApiResource\LinkCollection;
+use Drupal\jsonapi\JsonApiResource\NullIncludedData;
+use Drupal\jsonapi\ResourceResponse;
+use Drupal\jsonapi\Routing\Routes;
+use Drupal\serialization\EventSubscriber\DefaultExceptionSubscriber as SerializationDefaultExceptionSubscriber;
+use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
+use Symfony\Component\HttpKernel\Exception\HttpException;
+
+/**
+ * Serializes exceptions in compliance with the  JSON:API specification.
+ *
+ * @internal JSON:API maintains no PHP API. The API is the HTTP API. This class
+ *   may change at any time and could break any dependencies on it.
+ *
+ * @see https://www.drupal.org/project/jsonapi/issues/3032787
+ * @see jsonapi.api.php
+ */
+class DefaultExceptionSubscriber extends SerializationDefaultExceptionSubscriber {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static function getPriority() {
+    return parent::getPriority() + 25;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getHandledFormats() {
+    return ['api_json'];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function onException(GetResponseForExceptionEvent $event) {
+    if (!$this->isJsonApiExceptionEvent($event)) {
+      return;
+    }
+    if (($exception = $event->getException()) && !$exception instanceof HttpException) {
+      $exception = new HttpException(500, $exception->getMessage(), $exception);
+      $event->setException($exception);
+    }
+
+    $this->setEventResponse($event, $exception->getStatusCode());
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setEventResponse(GetResponseForExceptionEvent $event, $status) {
+    /* @var \Symfony\Component\HttpKernel\Exception\HttpException $exception */
+    $exception = $event->getException();
+    $response = new ResourceResponse(new JsonApiDocumentTopLevel(new ErrorCollection([$exception]), new NullIncludedData(), new LinkCollection([])), $exception->getStatusCode(), $exception->getHeaders());
+    $response->addCacheableDependency($exception);
+    $event->setResponse($response);
+  }
+
+  /**
+   * Check if the error should be formatted using JSON:API.
+   *
+   * The JSON:API format is supported if the format is explicitly set or the
+   * request is for a known JSON:API route.
+   *
+   * @param \Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent $exception_event
+   *   The exception event.
+   *
+   * @return bool
+   *   TRUE if it needs to be formatted using JSON:API. FALSE otherwise.
+   */
+  protected function isJsonApiExceptionEvent(GetResponseForExceptionEvent $exception_event) {
+    $request = $exception_event->getRequest();
+    $parameters = $request->attributes->all();
+    return $request->getRequestFormat() === 'api_json' || (bool) Routes::getResourceTypeNameFromParameters($parameters);
+  }
+
+}