class MediaAccessControlHandler in Drupal 8

Defines an access control handler for media items.

Hierarchy

• class \Drupal\Core\Entity\EntityHandlerBase uses DependencySerializationTrait, StringTranslationTrait
  • class \Drupal\Core\Entity\EntityAccessControlHandler implements EntityAccessControlHandlerInterface
    • class \Drupal\media\MediaAccessControlHandler

File

core/modules/media/src/MediaAccessControlHandler.php, line 13

Namespace

Drupal\media

class MediaAccessControlHandler extends EntityAccessControlHandler {

  /**
   * {@inheritdoc}
   */
  protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
    if ($account
      ->hasPermission('administer media')) {
      return AccessResult::allowed()
        ->cachePerPermissions();
    }
    $type = $entity
      ->bundle();
    $is_owner = $account
      ->id() && $account
      ->id() === $entity
      ->getOwnerId();
    switch ($operation) {
      case 'view':
        if ($entity
          ->isPublished()) {
          $access_result = AccessResult::allowedIf($account
            ->hasPermission('view media'))
            ->cachePerPermissions()
            ->addCacheableDependency($entity);
          if (!$access_result
            ->isAllowed()) {
            $access_result
              ->setReason("The 'view media' permission is required when the media item is published.");
          }
        }
        elseif ($account
          ->hasPermission('view own unpublished media')) {
          $access_result = AccessResult::allowedIf($is_owner)
            ->cachePerPermissions()
            ->cachePerUser()
            ->addCacheableDependency($entity);
          if (!$access_result
            ->isAllowed()) {
            $access_result
              ->setReason("The user must be the owner and the 'view own unpublished media' permission is required when the media item is unpublished.");
          }
        }
        else {
          $access_result = AccessResult::neutral()
            ->cachePerPermissions()
            ->addCacheableDependency($entity)
            ->setReason("The user must be the owner and the 'view own unpublished media' permission is required when the media item is unpublished.");
        }
        return $access_result;
      case 'update':
        if ($account
          ->hasPermission('edit any ' . $type . ' media')) {
          return AccessResult::allowed()
            ->cachePerPermissions();
        }
        if ($account
          ->hasPermission('edit own ' . $type . ' media') && $is_owner) {
          return AccessResult::allowed()
            ->cachePerPermissions()
            ->cachePerUser()
            ->addCacheableDependency($entity);
        }

        // @todo Deprecate this permission in
        // https://www.drupal.org/project/drupal/issues/2925459.
        if ($account
          ->hasPermission('update any media')) {
          return AccessResult::allowed()
            ->cachePerPermissions();
        }
        if ($account
          ->hasPermission('update media') && $is_owner) {
          return AccessResult::allowed()
            ->cachePerPermissions()
            ->cachePerUser()
            ->addCacheableDependency($entity);
        }
        return AccessResult::neutral("The following permissions are required: 'update any media' OR 'update own media' OR '{$type}: edit any media' OR '{$type}: edit own media'.")
          ->cachePerPermissions();
      case 'delete':
        if ($account
          ->hasPermission('delete any ' . $type . ' media')) {
          return AccessResult::allowed()
            ->cachePerPermissions();
        }
        if ($account
          ->hasPermission('delete own ' . $type . ' media') && $is_owner) {
          return AccessResult::allowed()
            ->cachePerPermissions()
            ->cachePerUser()
            ->addCacheableDependency($entity);
        }

        // @todo Deprecate this permission in
        // https://www.drupal.org/project/drupal/issues/2925459.
        if ($account
          ->hasPermission('delete any media')) {
          return AccessResult::allowed()
            ->cachePerPermissions();
        }
        if ($account
          ->hasPermission('delete media') && $is_owner) {
          return AccessResult::allowed()
            ->cachePerPermissions()
            ->cachePerUser()
            ->addCacheableDependency($entity);
        }
        return AccessResult::neutral("The following permissions are required: 'delete any media' OR 'delete own media' OR '{$type}: delete any media' OR '{$type}: delete own media'.")
          ->cachePerPermissions();
      default:
        return AccessResult::neutral()
          ->cachePerPermissions();
    }
  }

  /**
   * {@inheritdoc}
   */
  protected function checkCreateAccess(AccountInterface $account, array $context, $entity_bundle = NULL) {
    $permissions = [
      'administer media',
      'create media',
      'create ' . $entity_bundle . ' media',
    ];
    return AccessResult::allowedIfHasPermissions($account, $permissions, 'OR');
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property	An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
EntityAccessControlHandler::$accessCache	protected	property	Stores calculated access check results.
EntityAccessControlHandler::$entityType	protected	property	Information about the entity type.
EntityAccessControlHandler::$entityTypeId	protected	property	The entity type ID of the access control handler instance.
EntityAccessControlHandler::$viewLabelOperation	protected	property	Allows to grant access to just the labels.	5
EntityAccessControlHandler::access	public	function	Checks access to an operation on a given entity or entity translation. Overrides EntityAccessControlHandlerInterface::access	1
EntityAccessControlHandler::checkFieldAccess	protected	function	Default field access as determined by this access control handler.	4
EntityAccessControlHandler::createAccess	public	function	Checks access to create an entity. Overrides EntityAccessControlHandlerInterface::createAccess	1
EntityAccessControlHandler::fieldAccess	public	function	Checks access to an operation on a given entity field. Overrides EntityAccessControlHandlerInterface::fieldAccess
EntityAccessControlHandler::getCache	protected	function	Tries to retrieve a previously cached access value from the static cache.
EntityAccessControlHandler::prepareUser	protected	function	Loads the current account object, if it does not exist yet.
EntityAccessControlHandler::processAccessHookResults	protected	function	We grant access to the entity if both of these conditions are met:
EntityAccessControlHandler::resetCache	public	function	Clears all cached access checks. Overrides EntityAccessControlHandlerInterface::resetCache
EntityAccessControlHandler::setCache	protected	function	Statically caches whether the given user has access.
EntityAccessControlHandler::__construct	public	function	Constructs an access control handler instance.	5
EntityHandlerBase::$moduleHandler	protected	property	The module handler to invoke hooks on.	2
EntityHandlerBase::moduleHandler	protected	function	Gets the module handler.	2
EntityHandlerBase::setModuleHandler	public	function	Sets the module handler for this handler.
MediaAccessControlHandler::checkAccess	protected	function	Performs access checks. Overrides EntityAccessControlHandler::checkAccess
MediaAccessControlHandler::checkCreateAccess	protected	function	Performs create access checks. Overrides EntityAccessControlHandler::checkCreateAccess
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.