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3 years ago
  1. <?php
  2. declare(strict_types=1);
  3. /**
  4. * @copyright Copyright (c) 2016, Roeland Jago Douma <roeland@famdouma.nl>
  5. *
  6. * @author Roeland Jago Douma <roeland@famdouma.nl>
  7. *
  8. * @license GNU AGPL version 3 or any later version
  9. *
  10. * This program is free software: you can redistribute it and/or modify
  11. * it under the terms of the GNU Affero General Public License as
  12. * published by the Free Software Foundation, either version 3 of the
  13. * License, or (at your option) any later version.
  14. *
  15. * This program is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU Affero General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU Affero General Public License
  21. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  22. *
  23. */
  24. namespace OC\Preview;
  25. use OC\SystemConfig;
  26. use OCP\Files\IRootFolder;
  27. use OCP\Files\Node;
  28. class WatcherConnector {
  29. /** @var IRootFolder */
  30. private $root;
  31. /** @var SystemConfig */
  32. private $config;
  33. /**
  34. * WatcherConnector constructor.
  35. *
  36. * @param IRootFolder $root
  37. * @param SystemConfig $config
  38. */
  39. public function __construct(IRootFolder $root,
  40. SystemConfig $config) {
  41. $this->root = $root;
  42. $this->config = $config;
  43. }
  44. /**
  45. * @return Watcher
  46. */
  47. private function getWatcher(): Watcher {
  48. return \OC::$server->query(Watcher::class);
  49. }
  50. public function connectWatcher() {
  51. // Do not connect if we are not setup yet!
  52. if ($this->config->getValue('instanceid', null) !== null) {
  53. $this->root->listen('\OC\Files', 'postWrite', function (Node $node) {
  54. $this->getWatcher()->postWrite($node);
  55. });
  56. \OC_Hook::connect('\OCP\Versions', 'rollback', $this->getWatcher(), 'versionRollback');
  57. }
  58. }
  59. }