summaryrefslogtreecommitdiffstats
path: root/apps/files_sharing/lib/Scanner.php
blob: 8540d296cd607fd1cb5c1ee35ebc0fed631ec235 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Robin Appelman <robin@icewind.nl>
 * @author Roeland Jago Douma <roeland@famdouma.nl>
 * @author Vincent Petry <pvince81@owncloud.com>
 *
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OCA\Files_Sharing;

use OC\Files\ObjectStore\NoopScanner;

/**
 * Scanner for SharedStorage
 */
class Scanner extends \OC\Files\Cache\Scanner {
	/**
	 * @var \OCA\Files_Sharing\SharedStorage $storage
	 */
	protected $storage;

	private $sourceScanner;

	/**
	 * Returns metadata from the shared storage, but
	 * with permissions from the source storage.
	 *
	 * @param string $path path of the file for which to retrieve metadata
	 *
	 * @return array an array of metadata of the file
	 */
	public function getData($path) {
		$data = parent::getData($path);
		if ($data === null) {
			return null;
		}
		$internalPath = $this->storage->getUnjailedPath($path);
		$data['permissions'] = $this->storage->getSourceStorage()->getPermissions($internalPath);
		return $data;
	}

	private function getSourceScanner() {
		if ($this->sourceScanner) {
			return $this->sourceScanner;
		}
		if ($this->storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage')) {
			/** @var \OC\Files\Storage\Storage $storage */
			list($storage) = $this->storage->resolvePath('');
			$this->sourceScanner = $storage->getScanner();
			return $this->sourceScanner;
		} else {
			return null;
		}
	}

	public function scanFile($file, $reuseExisting = 0, $parentId = -1, $cacheData = null, $lock = true) {
		$sourceScanner = $this->getSourceScanner();
		if ($sourceScanner instanceof NoopScanner) {
			return [];
		} else {
			return parent::scanFile($file, $reuseExisting, $parentId, $cacheData, $lock);
		}
	}
}