3 * @copyright Copyright (C) 2010-2021, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Model\Storage;
25 * System resource storage class
27 * This class is used to load system resources, like images.
28 * Is not intended to be selectable by admins as default storage class.
30 class SystemResource implements IStorage
32 const NAME = 'SystemResource';
34 // Valid folders to look for resources
35 const VALID_FOLDERS = ["images"];
40 public function get(string $reference): string
42 $folder = dirname($reference);
43 if (!in_array($folder, self::VALID_FOLDERS)) {
44 throw new ReferenceStorageException(sprintf('System Resource is invalid for reference %s, no valid folder found', $reference));
46 if (!file_exists($reference)) {
47 throw new StorageException(sprintf('System Resource is invalid for reference %s, the file doesn\'t exist', $reference));
49 $content = file_get_contents($reference);
51 if ($content === false) {
52 throw new StorageException(sprintf('Cannot get content for reference %s', $reference));
61 public function __toString()
69 public static function getName(): string