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| <?php | |
| /** | |
| * Gallery | |
| * | |
| * This file is licensed under the Affero General Public License version 3 or | |
| * later. See the COPYING file. | |
| * | |
| * @author Olivier Paroz <galleryapps@oparoz.com> | |
| * | |
| * @copyright Olivier Paroz 2014-2016 | |
| */ | |
| namespace OCA\Gallery\Service; | |
| use OCP\Files\Node; | |
| use OCP\ILogger; | |
| use OCA\Gallery\Environment\Environment; | |
| /** | |
| * Contains methods which all services will need | |
| * | |
| * @package OCA\Gallery\Service | |
| */ | |
| abstract class Service { | |
| /** | |
| * @var string | |
| */ | |
| protected $appName; | |
| /** | |
| * @var Environment | |
| */ | |
| protected $environment; | |
| /** | |
| * @var ILogger | |
| */ | |
| protected $logger; | |
| /** | |
| * Constructor | |
| * | |
| * @param string $appName | |
| * @param Environment $environment | |
| * @param ILogger $logger | |
| */ | |
| public function __construct( | |
| $appName, | |
| Environment $environment, | |
| ILogger $logger | |
| ) { | |
| $this->appName = $appName; | |
| $this->environment = $environment; | |
| $this->logger = $logger; | |
| } | |
| /** | |
| * Returns the file matching the given ID | |
| * | |
| * @param int $nodeId ID of the resource to locate | |
| * | |
| * @return Node | |
| * @throws NotFoundServiceException | |
| */ | |
| public function getFile($nodeId) { | |
| $node = $this->getNode($nodeId); | |
| if ($node->getType() === 'file') { | |
| $this->validateNode($node); | |
| return $node; | |
| } else { | |
| throw new NotFoundServiceException("Cannot find a file with this ID"); | |
| } | |
| } | |
| /** | |
| * Returns the node matching the given ID | |
| * | |
| * @param int $nodeId ID of the resource to locate | |
| * | |
| * @return Node | |
| * @throws NotFoundServiceException | |
| */ | |
| private function getNode($nodeId) { | |
| try { | |
| $node = $this->environment->getResourceFromId($nodeId); | |
| return $node; | |
| } catch (\Exception $exception) { | |
| throw new NotFoundServiceException($exception->getMessage()); | |
| } | |
| } | |
| /** | |
| * Makes extra sure that we can actually do something with the file | |
| * | |
| * @param Node $node | |
| * | |
| * @throws NotFoundServiceException | |
| */ | |
| private function validateNode($node) { | |
| if (!$node->getMimetype() || !$node->isReadable()) { | |
| throw new NotFoundServiceException("Can't access the file"); | |
| } | |
| } | |
| } |