class HttpExceptionNormalizer in Drupal 8

Same name and namespace in other branches

9 core/modules/jsonapi/src/Normalizer/HttpExceptionNormalizer.php \Drupal\jsonapi\Normalizer\HttpExceptionNormalizer

Normalizes an HttpException in compliance with the JSON:API specification.

@internal JSON:API maintains no PHP API since its API is the HTTP API. This class may change at any time and this will break any dependencies on it.

Hierarchy

class \Drupal\serialization\Normalizer\NormalizerBase implements \Symfony\Component\Serializer\SerializerAwareInterface, CacheableNormalizerInterface uses \Symfony\Component\Serializer\SerializerAwareTrait
- class \Drupal\jsonapi\Normalizer\NormalizerBase
  - class \Drupal\jsonapi\Normalizer\HttpExceptionNormalizer

Expanded class hierarchy of HttpExceptionNormalizer

File

core/modules/jsonapi/src/Normalizer/HttpExceptionNormalizer.php, line 22

Namespace

Drupal\jsonapi\Normalizer

View source

class HttpExceptionNormalizer extends NormalizerBase {

  /**
   * The interface or class that this Normalizer supports.
   *
   * @var string
   */
  protected $supportedInterfaceOrClass = HttpException::class;

  /**
   * The current user making the request.
   *
   * @var \Drupal\Core\Session\AccountInterface
   */
  protected $currentUser;

  /**
   * HttpExceptionNormalizer constructor.
   *
   * @param \Drupal\Core\Session\AccountInterface $current_user
   *   The current user.
   */
  public function __construct(AccountInterface $current_user) {
    $this->currentUser = $current_user;
  }

  /**
   * {@inheritdoc}
   */
  public function normalize($object, $format = NULL, array $context = []) {
    $cacheability = new CacheableMetadata();
    $cacheability
      ->addCacheableDependency($object);
    return new HttpExceptionNormalizerValue($cacheability, static::rasterizeValueRecursive($this
      ->buildErrorObjects($object)));
  }

  /**
   * Builds the normalized JSON:API error objects for the response.
   *
   * @param \Symfony\Component\HttpKernel\Exception\HttpException $exception
   *   The Exception.
   *
   * @return array
   *   The error objects to include in the response.
   */
  protected function buildErrorObjects(HttpException $exception) {
    $error = [];
    $status_code = $exception
      ->getStatusCode();
    if (!empty(Response::$statusTexts[$status_code])) {
      $error['title'] = Response::$statusTexts[$status_code];
    }
    $error += [
      'status' => (string) $status_code,
      'detail' => $exception
        ->getMessage(),
    ];
    $error['links']['via']['href'] = \Drupal::request()
      ->getUri();

    // Provide an "info" link by default: if the exception carries a single
    // "Link" header, use that, otherwise fall back to the HTTP spec section
    // covering the exception's status code.
    $headers = $exception
      ->getHeaders();
    if (isset($headers['Link']) && !is_array($headers['Link'])) {
      $error['links']['info']['href'] = $headers['Link'];
    }
    elseif ($info_url = $this
      ->getInfoUrl($status_code)) {
      $error['links']['info']['href'] = $info_url;
    }

    // Exceptions thrown without an explicitly defined code get assigned zero by
    // default. Since this is no helpful information, omit it.
    if ($exception
      ->getCode() !== 0) {
      $error['code'] = (string) $exception
        ->getCode();
    }
    if ($this->currentUser
      ->hasPermission('access site reports')) {

      // The following information may contain sensitive information. Only show
      // it to authorized users.
      $error['source'] = [
        'file' => $exception
          ->getFile(),
        'line' => $exception
          ->getLine(),
      ];
      $error['meta'] = [
        'exception' => (string) $exception,
        'trace' => $exception
          ->getTrace(),
      ];
    }
    return [
      $error,
    ];
  }

  /**
   * Return a string to the common problem type.
   *
   * @return string|null
   *   URL pointing to the specific RFC-2616 section. Or NULL if it is an HTTP
   *   status code that is defined in another RFC.
   *
   * @see https://www.drupal.org/project/drupal/issues/2832211#comment-11826234
   *
   * @internal
   */
  public static function getInfoUrl($status_code) {

    // Depending on the error code we'll return a different URL.
    $url = 'http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html';
    $sections = [
      '100' => '#sec10.1.1',
      '101' => '#sec10.1.2',
      '200' => '#sec10.2.1',
      '201' => '#sec10.2.2',
      '202' => '#sec10.2.3',
      '203' => '#sec10.2.4',
      '204' => '#sec10.2.5',
      '205' => '#sec10.2.6',
      '206' => '#sec10.2.7',
      '300' => '#sec10.3.1',
      '301' => '#sec10.3.2',
      '302' => '#sec10.3.3',
      '303' => '#sec10.3.4',
      '304' => '#sec10.3.5',
      '305' => '#sec10.3.6',
      '307' => '#sec10.3.8',
      '400' => '#sec10.4.1',
      '401' => '#sec10.4.2',
      '402' => '#sec10.4.3',
      '403' => '#sec10.4.4',
      '404' => '#sec10.4.5',
      '405' => '#sec10.4.6',
      '406' => '#sec10.4.7',
      '407' => '#sec10.4.8',
      '408' => '#sec10.4.9',
      '409' => '#sec10.4.10',
      '410' => '#sec10.4.11',
      '411' => '#sec10.4.12',
      '412' => '#sec10.4.13',
      '413' => '#sec10.4.14',
      '414' => '#sec10.4.15',
      '415' => '#sec10.4.16',
      '416' => '#sec10.4.17',
      '417' => '#sec10.4.18',
      '500' => '#sec10.5.1',
      '501' => '#sec10.5.2',
      '502' => '#sec10.5.3',
      '503' => '#sec10.5.4',
      '504' => '#sec10.5.5',
      '505' => '#sec10.5.6',
    ];
    return empty($sections[$status_code]) ? NULL : $url . $sections[$status_code];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CacheableNormalizerInterface::SERIALIZATION_CONTEXT_CACHEABILITY		constant	Name of key for bubbling cacheability metadata via serialization context.
HttpExceptionNormalizer::$currentUser	protected	property	The current user making the request.
HttpExceptionNormalizer::$supportedInterfaceOrClass	protected	property	The interface or class that this Normalizer supports. Overrides NormalizerBase::$supportedInterfaceOrClass	2
HttpExceptionNormalizer::buildErrorObjects	protected	function	Builds the normalized JSON:API error objects for the response.	2
HttpExceptionNormalizer::getInfoUrl	public static	function	Return a string to the common problem type.
HttpExceptionNormalizer::normalize	public	function	Normalizes an object into a set of arrays/scalars.
HttpExceptionNormalizer::__construct	public	function	HttpExceptionNormalizer constructor.
NormalizerBase::$format	protected	property	List of formats which supports (de-)normalization. Overrides NormalizerBase::$format
NormalizerBase::addCacheableDependency	protected	function	Adds cacheability if applicable.
NormalizerBase::checkFormat	protected	function	Checks if the provided format is supported by this normalizer. Overrides NormalizerBase::checkFormat
NormalizerBase::rasterizeValueRecursive	protected static	function	Rasterizes a value recursively.
NormalizerBase::supportsDenormalization	public	function	Implements \Symfony\Component\Serializer\Normalizer\DenormalizerInterface::supportsDenormalization()	1
NormalizerBase::supportsNormalization	public	function	Checks whether the given class is supported for normalization by this normalizer.	1

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class HttpExceptionNormalizer in Drupal 8

Hierarchy

See also

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Namespace

Members

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