function MediaAccessControlHandler::checkAccess

Overrides EntityAccessControlHandler::checkAccess

File

core/modules/media/src/MediaAccessControlHandler.php, line 56

Class

MediaAccessControlHandler

Defines an access control handler for media items.

Namespace

Code

protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
    
    /** @var \Drupal\media\MediaInterface $entity */
    // Allow admin permission to override all operations.
    if ($account->hasPermission($this->entityType
        ->getAdminPermission())) {
        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hasPermission('view own unpublished media')) {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setReason("The user must be the owner and the 'view own unpublished media' permission is required when the media item is unpublished.");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setReason("The user must be the owner and the 'view own unpublished media' permission is required when the media item is unpublished.");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();
        case 'view all revisions':
            // Perform basic permission checks first.
            if (!$account->hasPermission('view all media revisions')) {
                return AccessResult::neutral("The 'view all media revisions' permission is required.")->cachePerPermissions();
            }
            // First check the access to the default revision and finally, if the
            // media passed in is not the default revision then access to that,
            // too.
            $media_storage = $this->entityTypeManager
                ->getStorage($entity->getEntityTypeId());
            $access = $this->access($media_storage->load($entity->id()), 'view', $account, TRUE);
            if (!$entity->isDefaultRevision()) {
                $access = $access->andIf($this->access($entity, 'view', $account, TRUE));
            }
            return $access->cachePerPermissions()
                ->addCacheableDependency($entity);
        default:
            return AccessResult::neutral()->cachePerPermissions();
    }
}