Chris@18: <?php
Chris@18: 
Chris@18: namespace Drupal\jsonapi\Routing;
Chris@18: 
Chris@18: use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
Chris@18: use Drupal\jsonapi\Access\RelationshipFieldAccess;
Chris@18: use Drupal\jsonapi\Controller\EntryPoint;
Chris@18: use Drupal\jsonapi\ParamConverter\ResourceTypeConverter;
Chris@18: use Drupal\jsonapi\ResourceType\ResourceType;
Chris@18: use Drupal\jsonapi\ResourceType\ResourceTypeRepositoryInterface;
Chris@18: use Symfony\Cmf\Component\Routing\RouteObjectInterface;
Chris@18: use Symfony\Component\DependencyInjection\ContainerInterface;
Chris@18: use Symfony\Component\Routing\Route;
Chris@18: use Symfony\Component\Routing\RouteCollection;
Chris@18: 
Chris@18: /**
Chris@18:  * Defines dynamic routes.
Chris@18:  *
Chris@18:  * @internal JSON:API maintains no PHP API since its API is the HTTP API. This
Chris@18:  *   class may change at any time and this will break any dependencies on it.
Chris@18:  *
Chris@18:  * @see https://www.drupal.org/project/jsonapi/issues/3032787
Chris@18:  * @see jsonapi.api.php
Chris@18:  */
Chris@18: class Routes implements ContainerInjectionInterface {
Chris@18: 
Chris@18:   /**
Chris@18:    * The service name for the primary JSON:API controller.
Chris@18:    *
Chris@18:    * All resources except the entrypoint are served by this controller.
Chris@18:    *
Chris@18:    * @var string
Chris@18:    */
Chris@18:   const CONTROLLER_SERVICE_NAME = 'jsonapi.entity_resource';
Chris@18: 
Chris@18:   /**
Chris@18:    * A key with which to flag a route as belonging to the JSON:API module.
Chris@18:    *
Chris@18:    * @var string
Chris@18:    */
Chris@18:   const JSON_API_ROUTE_FLAG_KEY = '_is_jsonapi';
Chris@18: 
Chris@18:   /**
Chris@18:    * The route default key for the route's resource type information.
Chris@18:    *
Chris@18:    * @var string
Chris@18:    */
Chris@18:   const RESOURCE_TYPE_KEY = 'resource_type';
Chris@18: 
Chris@18:   /**
Chris@18:    * The JSON:API resource type repository.
Chris@18:    *
Chris@18:    * @var \Drupal\jsonapi\ResourceType\ResourceTypeRepositoryInterface
Chris@18:    */
Chris@18:   protected $resourceTypeRepository;
Chris@18: 
Chris@18:   /**
Chris@18:    * List of providers.
Chris@18:    *
Chris@18:    * @var string[]
Chris@18:    */
Chris@18:   protected $providerIds;
Chris@18: 
Chris@18:   /**
Chris@18:    * The JSON:API base path.
Chris@18:    *
Chris@18:    * @var string
Chris@18:    */
Chris@18:   protected $jsonApiBasePath;
Chris@18: 
Chris@18:   /**
Chris@18:    * Instantiates a Routes object.
Chris@18:    *
Chris@18:    * @param \Drupal\jsonapi\ResourceType\ResourceTypeRepositoryInterface $resource_type_repository
Chris@18:    *   The JSON:API resource type repository.
Chris@18:    * @param string[] $authentication_providers
Chris@18:    *   The authentication providers, keyed by ID.
Chris@18:    * @param string $jsonapi_base_path
Chris@18:    *   The JSON:API base path.
Chris@18:    */
Chris@18:   public function __construct(ResourceTypeRepositoryInterface $resource_type_repository, array $authentication_providers, $jsonapi_base_path) {
Chris@18:     $this->resourceTypeRepository = $resource_type_repository;
Chris@18:     $this->providerIds = array_keys($authentication_providers);
Chris@18:     assert(is_string($jsonapi_base_path));
Chris@18:     assert(
Chris@18:       $jsonapi_base_path[0] === '/',
Chris@18:       sprintf('The provided base path should contain a leading slash "/". Given: "%s".', $jsonapi_base_path)
Chris@18:     );
Chris@18:     assert(
Chris@18:       substr($jsonapi_base_path, -1) !== '/',
Chris@18:       sprintf('The provided base path should not contain a trailing slash "/". Given: "%s".', $jsonapi_base_path)
Chris@18:     );
Chris@18:     $this->jsonApiBasePath = $jsonapi_base_path;
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * {@inheritdoc}
Chris@18:    */
Chris@18:   public static function create(ContainerInterface $container) {
Chris@18:     return new static(
Chris@18:       $container->get('jsonapi.resource_type.repository'),
Chris@18:       $container->getParameter('authentication_providers'),
Chris@18:       $container->getParameter('jsonapi.base_path')
Chris@18:     );
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * {@inheritdoc}
Chris@18:    */
Chris@18:   public function routes() {
Chris@18:     $routes = new RouteCollection();
Chris@18:     $upload_routes = new RouteCollection();
Chris@18: 
Chris@18:     // JSON:API's routes: entry point + routes for every resource type.
Chris@18:     foreach ($this->resourceTypeRepository->all() as $resource_type) {
Chris@18:       $routes->addCollection(static::getRoutesForResourceType($resource_type, $this->jsonApiBasePath));
Chris@18:       $upload_routes->addCollection(static::getFileUploadRoutesForResourceType($resource_type, $this->jsonApiBasePath));
Chris@18:     }
Chris@18:     $routes->add('jsonapi.resource_list', static::getEntryPointRoute($this->jsonApiBasePath));
Chris@18: 
Chris@18:     // Require the JSON:API media type header on every route, except on file
Chris@18:     // upload routes, where we require `application/octet-stream`.
Chris@18:     $routes->addRequirements(['_content_type_format' => 'api_json']);
Chris@18:     $upload_routes->addRequirements(['_content_type_format' => 'bin']);
Chris@18: 
Chris@18:     $routes->addCollection($upload_routes);
Chris@18: 
Chris@18:     // Enable all available authentication providers.
Chris@18:     $routes->addOptions(['_auth' => $this->providerIds]);
Chris@18: 
Chris@18:     // Flag every route as belonging to the JSON:API module.
Chris@18:     $routes->addDefaults([static::JSON_API_ROUTE_FLAG_KEY => TRUE]);
Chris@18: 
Chris@18:     // All routes serve only the JSON:API media type.
Chris@18:     $routes->addRequirements(['_format' => 'api_json']);
Chris@18: 
Chris@18:     return $routes;
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Gets applicable resource routes for a JSON:API resource type.
Chris@18:    *
Chris@18:    * @param \Drupal\jsonapi\ResourceType\ResourceType $resource_type
Chris@18:    *   The JSON:API resource type for which to get the routes.
Chris@18:    * @param string $path_prefix
Chris@18:    *   The root path prefix.
Chris@18:    *
Chris@18:    * @return \Symfony\Component\Routing\RouteCollection
Chris@18:    *   A collection of routes for the given resource type.
Chris@18:    */
Chris@18:   protected static function getRoutesForResourceType(ResourceType $resource_type, $path_prefix) {
Chris@18:     // Internal resources have no routes.
Chris@18:     if ($resource_type->isInternal()) {
Chris@18:       return new RouteCollection();
Chris@18:     }
Chris@18: 
Chris@18:     $routes = new RouteCollection();
Chris@18: 
Chris@18:     // Collection route like `/jsonapi/node/article`.
Chris@18:     if ($resource_type->isLocatable()) {
Chris@18:       $collection_route = new Route("/{$resource_type->getPath()}");
Chris@18:       $collection_route->addDefaults([RouteObjectInterface::CONTROLLER_NAME => static::CONTROLLER_SERVICE_NAME . ':getCollection']);
Chris@18:       $collection_route->setMethods(['GET']);
Chris@18:       // Allow anybody access because "view" and "view label" access are checked
Chris@18:       // in the controller.
Chris@18:       $collection_route->setRequirement('_access', 'TRUE');
Chris@18:       $routes->add(static::getRouteName($resource_type, 'collection'), $collection_route);
Chris@18:     }
Chris@18: 
Chris@18:     // Creation route.
Chris@18:     if ($resource_type->isMutable()) {
Chris@18:       $collection_create_route = new Route("/{$resource_type->getPath()}");
Chris@18:       $collection_create_route->addDefaults([RouteObjectInterface::CONTROLLER_NAME => static::CONTROLLER_SERVICE_NAME . ':createIndividual']);
Chris@18:       $collection_create_route->setMethods(['POST']);
Chris@18:       $create_requirement = sprintf("%s:%s", $resource_type->getEntityTypeId(), $resource_type->getBundle());
Chris@18:       $collection_create_route->setRequirement('_entity_create_access', $create_requirement);
Chris@18:       $collection_create_route->setRequirement('_csrf_request_header_token', 'TRUE');
Chris@18:       $routes->add(static::getRouteName($resource_type, 'collection.post'), $collection_create_route);
Chris@18:     }
Chris@18: 
Chris@18:     // Individual routes like `/jsonapi/node/article/{uuid}` or
Chris@18:     // `/jsonapi/node/article/{uuid}/relationships/uid`.
Chris@18:     $routes->addCollection(static::getIndividualRoutesForResourceType($resource_type));
Chris@18: 
Chris@18:     // Add the resource type as a parameter to every resource route.
Chris@18:     foreach ($routes as $route) {
Chris@18:       static::addRouteParameter($route, static::RESOURCE_TYPE_KEY, ['type' => ResourceTypeConverter::PARAM_TYPE_ID]);
Chris@18:       $route->addDefaults([static::RESOURCE_TYPE_KEY => $resource_type->getTypeName()]);
Chris@18:     }
Chris@18: 
Chris@18:     // Resource routes all have the same base path.
Chris@18:     $routes->addPrefix($path_prefix);
Chris@18: 
Chris@18:     return $routes;
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Gets the file upload route collection for the given resource type.
Chris@18:    *
Chris@18:    * @param \Drupal\jsonapi\ResourceType\ResourceType $resource_type
Chris@18:    *   The resource type for which the route collection should be created.
Chris@18:    * @param string $path_prefix
Chris@18:    *   The root path prefix.
Chris@18:    *
Chris@18:    * @return \Symfony\Component\Routing\RouteCollection
Chris@18:    *   The route collection.
Chris@18:    */
Chris@18:   protected static function getFileUploadRoutesForResourceType(ResourceType $resource_type, $path_prefix) {
Chris@18:     $routes = new RouteCollection();
Chris@18: 
Chris@18:     // Internal resources have no routes; individual routes require locations.
Chris@18:     if ($resource_type->isInternal() || !$resource_type->isLocatable()) {
Chris@18:       return $routes;
Chris@18:     }
Chris@18: 
Chris@18:     // File upload routes are only necessary for resource types that have file
Chris@18:     // fields.
Chris@18:     $has_file_field = array_reduce($resource_type->getRelatableResourceTypes(), function ($carry, array $target_resource_types) {
Chris@18:       return $carry || static::hasNonInternalFileTargetResourceTypes($target_resource_types);
Chris@18:     }, FALSE);
Chris@18:     if (!$has_file_field) {
Chris@18:       return $routes;
Chris@18:     }
Chris@18: 
Chris@18:     if ($resource_type->isMutable()) {
Chris@18:       $path = $resource_type->getPath();
Chris@18:       $entity_type_id = $resource_type->getEntityTypeId();
Chris@18: 
Chris@18:       $new_resource_file_upload_route = new Route("/{$path}/{file_field_name}");
Chris@18:       $new_resource_file_upload_route->addDefaults([RouteObjectInterface::CONTROLLER_NAME => 'jsonapi.file_upload:handleFileUploadForNewResource']);
Chris@18:       $new_resource_file_upload_route->setMethods(['POST']);
Chris@18:       $new_resource_file_upload_route->setRequirement('_csrf_request_header_token', 'TRUE');
Chris@18:       $routes->add(static::getFileUploadRouteName($resource_type, 'new_resource'), $new_resource_file_upload_route);
Chris@18: 
Chris@18:       $existing_resource_file_upload_route = new Route("/{$path}/{entity}/{file_field_name}");
Chris@18:       $existing_resource_file_upload_route->addDefaults([RouteObjectInterface::CONTROLLER_NAME => 'jsonapi.file_upload:handleFileUploadForExistingResource']);
Chris@18:       $existing_resource_file_upload_route->setMethods(['POST']);
Chris@18:       $existing_resource_file_upload_route->setRequirement('_csrf_request_header_token', 'TRUE');
Chris@18:       $routes->add(static::getFileUploadRouteName($resource_type, 'existing_resource'), $existing_resource_file_upload_route);
Chris@18: 
Chris@18:       // Add entity parameter conversion to every route.
Chris@18:       $routes->addOptions(['parameters' => ['entity' => ['type' => 'entity:' . $entity_type_id]]]);
Chris@18: 
Chris@18:       // Add the resource type as a parameter to every resource route.
Chris@18:       foreach ($routes as $route) {
Chris@18:         static::addRouteParameter($route, static::RESOURCE_TYPE_KEY, ['type' => ResourceTypeConverter::PARAM_TYPE_ID]);
Chris@18:         $route->addDefaults([static::RESOURCE_TYPE_KEY => $resource_type->getTypeName()]);
Chris@18:       }
Chris@18:     }
Chris@18: 
Chris@18:     // File upload routes all have the same base path.
Chris@18:     $routes->addPrefix($path_prefix);
Chris@18: 
Chris@18:     return $routes;
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Determines if the given request is for a JSON:API generated route.
Chris@18:    *
Chris@18:    * @param array $defaults
Chris@18:    *   The request's route defaults.
Chris@18:    *
Chris@18:    * @return bool
Chris@18:    *   Whether the request targets a generated route.
Chris@18:    */
Chris@18:   public static function isJsonApiRequest(array $defaults) {
Chris@18:     return isset($defaults[RouteObjectInterface::CONTROLLER_NAME])
Chris@18:       && strpos($defaults[RouteObjectInterface::CONTROLLER_NAME], static::CONTROLLER_SERVICE_NAME) === 0;
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Gets a route collection for the given resource type.
Chris@18:    *
Chris@18:    * @param \Drupal\jsonapi\ResourceType\ResourceType $resource_type
Chris@18:    *   The resource type for which the route collection should be created.
Chris@18:    *
Chris@18:    * @return \Symfony\Component\Routing\RouteCollection
Chris@18:    *   The route collection.
Chris@18:    */
Chris@18:   protected static function getIndividualRoutesForResourceType(ResourceType $resource_type) {
Chris@18:     if (!$resource_type->isLocatable()) {
Chris@18:       return new RouteCollection();
Chris@18:     }
Chris@18: 
Chris@18:     $routes = new RouteCollection();
Chris@18: 
Chris@18:     $path = $resource_type->getPath();
Chris@18:     $entity_type_id = $resource_type->getEntityTypeId();
Chris@18: 
Chris@18:     // Individual read, update and remove.
Chris@18:     $individual_route = new Route("/{$path}/{entity}");
Chris@18:     $individual_route->addDefaults([RouteObjectInterface::CONTROLLER_NAME => static::CONTROLLER_SERVICE_NAME . ':getIndividual']);
Chris@18:     $individual_route->setMethods(['GET']);
Chris@18:     // No _entity_access requirement because "view" and "view label" access are
Chris@18:     // checked in the controller. So it's safe to allow anybody access.
Chris@18:     $individual_route->setRequirement('_access', 'TRUE');
Chris@18:     $routes->add(static::getRouteName($resource_type, 'individual'), $individual_route);
Chris@18:     if ($resource_type->isMutable()) {
Chris@18:       $individual_update_route = new Route($individual_route->getPath());
Chris@18:       $individual_update_route->addDefaults([RouteObjectInterface::CONTROLLER_NAME => static::CONTROLLER_SERVICE_NAME . ':patchIndividual']);
Chris@18:       $individual_update_route->setMethods(['PATCH']);
Chris@18:       $individual_update_route->setRequirement('_entity_access', "entity.update");
Chris@18:       $individual_update_route->setRequirement('_csrf_request_header_token', 'TRUE');
Chris@18:       $routes->add(static::getRouteName($resource_type, 'individual.patch'), $individual_update_route);
Chris@18:       $individual_remove_route = new Route($individual_route->getPath());
Chris@18:       $individual_remove_route->addDefaults([RouteObjectInterface::CONTROLLER_NAME => static::CONTROLLER_SERVICE_NAME . ':deleteIndividual']);
Chris@18:       $individual_remove_route->setMethods(['DELETE']);
Chris@18:       $individual_remove_route->setRequirement('_entity_access', "entity.delete");
Chris@18:       $individual_remove_route->setRequirement('_csrf_request_header_token', 'TRUE');
Chris@18:       $routes->add(static::getRouteName($resource_type, 'individual.delete'), $individual_remove_route);
Chris@18:     }
Chris@18: 
Chris@18:     foreach ($resource_type->getRelatableResourceTypes() as $relationship_field_name => $target_resource_types) {
Chris@18:       // Read, update, add, or remove an individual resources relationships to
Chris@18:       // other resources.
Chris@18:       $relationship_route = new Route("/{$path}/{entity}/relationships/{$relationship_field_name}");
Chris@18:       $relationship_route->addDefaults(['_on_relationship' => TRUE]);
Chris@18:       $relationship_route->addDefaults(['related' => $relationship_field_name]);
Chris@18:       $relationship_route->setRequirement(RelationshipFieldAccess::ROUTE_REQUIREMENT_KEY, $relationship_field_name);
Chris@18:       $relationship_route->setRequirement('_csrf_request_header_token', 'TRUE');
Chris@18:       $relationship_route_methods = $resource_type->isMutable()
Chris@18:         ? ['GET', 'POST', 'PATCH', 'DELETE']
Chris@18:         : ['GET'];
Chris@18:       $relationship_controller_methods = [
Chris@18:         'GET' => 'getRelationship',
Chris@18:         'POST' => 'addToRelationshipData',
Chris@18:         'PATCH' => 'replaceRelationshipData',
Chris@18:         'DELETE' => 'removeFromRelationshipData',
Chris@18:       ];
Chris@18:       foreach ($relationship_route_methods as $method) {
Chris@18:         $method_specific_relationship_route = clone $relationship_route;
Chris@18:         $method_specific_relationship_route->addDefaults([RouteObjectInterface::CONTROLLER_NAME => static::CONTROLLER_SERVICE_NAME . ":{$relationship_controller_methods[$method]}"]);
Chris@18:         $method_specific_relationship_route->setMethods($method);
Chris@18:         $routes->add(static::getRouteName($resource_type, sprintf("%s.relationship.%s", $relationship_field_name, strtolower($method))), $method_specific_relationship_route);
Chris@18:       }
Chris@18: 
Chris@18:       // Only create routes for related routes that target at least one
Chris@18:       // non-internal resource type.
Chris@18:       if (static::hasNonInternalTargetResourceTypes($target_resource_types)) {
Chris@18:         // Get an individual resource's related resources.
Chris@18:         $related_route = new Route("/{$path}/{entity}/{$relationship_field_name}");
Chris@18:         $related_route->setMethods(['GET']);
Chris@18:         $related_route->addDefaults([RouteObjectInterface::CONTROLLER_NAME => static::CONTROLLER_SERVICE_NAME . ':getRelated']);
Chris@18:         $related_route->addDefaults(['related' => $relationship_field_name]);
Chris@18:         $related_route->setRequirement(RelationshipFieldAccess::ROUTE_REQUIREMENT_KEY, $relationship_field_name);
Chris@18:         $routes->add(static::getRouteName($resource_type, "$relationship_field_name.related"), $related_route);
Chris@18:       }
Chris@18:     }
Chris@18: 
Chris@18:     // Add entity parameter conversion to every route.
Chris@18:     $routes->addOptions(['parameters' => ['entity' => ['type' => 'entity:' . $entity_type_id]]]);
Chris@18: 
Chris@18:     return $routes;
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Provides the entry point route.
Chris@18:    *
Chris@18:    * @param string $path_prefix
Chris@18:    *   The root path prefix.
Chris@18:    *
Chris@18:    * @return \Symfony\Component\Routing\Route
Chris@18:    *   The entry point route.
Chris@18:    */
Chris@18:   protected function getEntryPointRoute($path_prefix) {
Chris@18:     $entry_point = new Route("/{$path_prefix}");
Chris@18:     $entry_point->addDefaults([RouteObjectInterface::CONTROLLER_NAME => EntryPoint::class . '::index']);
Chris@18:     $entry_point->setRequirement('_access', 'TRUE');
Chris@18:     $entry_point->setMethods(['GET']);
Chris@18:     return $entry_point;
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Adds a parameter option to a route, overrides options of the same name.
Chris@18:    *
Chris@18:    * The Symfony Route class only has a method for adding options which
Chris@18:    * overrides any previous values. Therefore, it is tedious to add a single
Chris@18:    * parameter while keeping those that are already set.
Chris@18:    *
Chris@18:    * @param \Symfony\Component\Routing\Route $route
Chris@18:    *   The route to which the parameter is to be added.
Chris@18:    * @param string $name
Chris@18:    *   The name of the parameter.
Chris@18:    * @param mixed $parameter
Chris@18:    *   The parameter's options.
Chris@18:    */
Chris@18:   protected static function addRouteParameter(Route $route, $name, $parameter) {
Chris@18:     $parameters = $route->getOption('parameters') ?: [];
Chris@18:     $parameters[$name] = $parameter;
Chris@18:     $route->setOption('parameters', $parameters);
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Get a unique route name for the JSON:API resource type and route type.
Chris@18:    *
Chris@18:    * @param \Drupal\jsonapi\ResourceType\ResourceType $resource_type
Chris@18:    *   The resource type for which the route collection should be created.
Chris@18:    * @param string $route_type
Chris@18:    *   The route type. E.g. 'individual' or 'collection'.
Chris@18:    *
Chris@18:    * @return string
Chris@18:    *   The generated route name.
Chris@18:    */
Chris@18:   public static function getRouteName(ResourceType $resource_type, $route_type) {
Chris@18:     return sprintf('jsonapi.%s.%s', $resource_type->getTypeName(), $route_type);
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Get a unique route name for the file upload resource type and route type.
Chris@18:    *
Chris@18:    * @param \Drupal\jsonapi\ResourceType\ResourceType $resource_type
Chris@18:    *   The resource type for which the route collection should be created.
Chris@18:    * @param string $route_type
Chris@18:    *   The route type. E.g. 'individual' or 'collection'.
Chris@18:    *
Chris@18:    * @return string
Chris@18:    *   The generated route name.
Chris@18:    */
Chris@18:   protected static function getFileUploadRouteName(ResourceType $resource_type, $route_type) {
Chris@18:     return sprintf('jsonapi.%s.%s.%s', $resource_type->getTypeName(), 'file_upload', $route_type);
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Determines if an array of resource types has any non-internal ones.
Chris@18:    *
Chris@18:    * @param \Drupal\jsonapi\ResourceType\ResourceType[] $resource_types
Chris@18:    *   The resource types to check.
Chris@18:    *
Chris@18:    * @return bool
Chris@18:    *   TRUE if there is at least one non-internal resource type in the given
Chris@18:    *   array; FALSE otherwise.
Chris@18:    */
Chris@18:   protected static function hasNonInternalTargetResourceTypes(array $resource_types) {
Chris@18:     return array_reduce($resource_types, function ($carry, ResourceType $target) {
Chris@18:       return $carry || !$target->isInternal();
Chris@18:     }, FALSE);
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Determines if an array of resource types lists non-internal "file" ones.
Chris@18:    *
Chris@18:    * @param \Drupal\jsonapi\ResourceType\ResourceType[] $resource_types
Chris@18:    *   The resource types to check.
Chris@18:    *
Chris@18:    * @return bool
Chris@18:    *   TRUE if there is at least one non-internal "file" resource type in the
Chris@18:    *   given array; FALSE otherwise.
Chris@18:    */
Chris@18:   protected static function hasNonInternalFileTargetResourceTypes(array $resource_types) {
Chris@18:     return array_reduce($resource_types, function ($carry, ResourceType $target) {
Chris@18:       return $carry || (!$target->isInternal() && $target->getEntityTypeId() === 'file');
Chris@18:     }, FALSE);
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Gets the resource type from a route or request's parameters.
Chris@18:    *
Chris@18:    * @param array $parameters
Chris@18:    *   An array of parameters. These may be obtained from a route's
Chris@18:    *   parameter defaults or from a request object.
Chris@18:    *
Chris@18:    * @return \Drupal\jsonapi\ResourceType\ResourceType|null
Chris@18:    *   The resource type, NULL if one cannot be found from the given parameters.
Chris@18:    */
Chris@18:   public static function getResourceTypeNameFromParameters(array $parameters) {
Chris@18:     if (isset($parameters[static::JSON_API_ROUTE_FLAG_KEY]) && $parameters[static::JSON_API_ROUTE_FLAG_KEY]) {
Chris@18:       return isset($parameters[static::RESOURCE_TYPE_KEY]) ? $parameters[static::RESOURCE_TYPE_KEY] : NULL;
Chris@18:     }
Chris@18:     return NULL;
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Invalidates any JSON:API resource type dependent responses and routes.
Chris@18:    */
Chris@18:   public static function rebuild() {
Chris@18:     \Drupal::service('cache_tags.invalidator')->invalidateTags(['jsonapi_resource_types']);
Chris@18:     \Drupal::service('router.builder')->setRebuildNeeded();
Chris@18:   }
Chris@18: 
Chris@18: }