1<?php
2/**
3 * @copyright Copyright (c) 2016, ownCloud, Inc.
4 *
5 * @author Bjoern Schiessle <bjoern@schiessle.org>
6 * @author Björn Schießle <bjoern@schiessle.org>
7 * @author Christoph Wurst <christoph@winzerhof-wurst.at>
8 * @author Joas Schilling <coding@schilljs.com>
9 * @author Jörn Friedrich Dreyer <jfd@butonic.de>
10 * @author Morris Jobke <hey@morrisjobke.de>
11 * @author Robin Appelman <robin@icewind.nl>
12 * @author Roeland Jago Douma <roeland@famdouma.nl>
13 * @author Victor Dubiniuk <dubiniuk@owncloud.com>
14 * @author Vincent Petry <vincent@nextcloud.com>
15 *
16 * @license AGPL-3.0
17 *
18 * This code is free software: you can redistribute it and/or modify
19 * it under the terms of the GNU Affero General Public License, version 3,
20 * as published by the Free Software Foundation.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU Affero General Public License for more details.
26 *
27 * You should have received a copy of the GNU Affero General Public License, version 3,
28 * along with this program. If not, see <http://www.gnu.org/licenses/>
29 *
30 */
31namespace OCA\Files_Trashbin;
32
33use OC\Files\FileInfo;
34use OCP\Constants;
35use OCP\Files\Cache\ICacheEntry;
36
37class Helper {
38	/**
39	 * Retrieves the contents of a trash bin directory.
40	 *
41	 * @param string $dir path to the directory inside the trashbin
42	 * or empty to retrieve the root of the trashbin
43	 * @param string $user
44	 * @param string $sortAttribute attribute to sort on or empty to disable sorting
45	 * @param bool $sortDescending true for descending sort, false otherwise
46	 * @return \OCP\Files\FileInfo[]
47	 */
48	public static function getTrashFiles($dir, $user, $sortAttribute = '', $sortDescending = false) {
49		$result = [];
50		$timestamp = null;
51
52		$view = new \OC\Files\View('/' . $user . '/files_trashbin/files');
53
54		if (ltrim($dir, '/') !== '' && !$view->is_dir($dir)) {
55			throw new \Exception('Directory does not exists');
56		}
57
58		$mount = $view->getMount($dir);
59		$storage = $mount->getStorage();
60		$absoluteDir = $view->getAbsolutePath($dir);
61		$internalPath = $mount->getInternalPath($absoluteDir);
62
63		$originalLocations = \OCA\Files_Trashbin\Trashbin::getLocations($user);
64		$dirContent = $storage->getCache()->getFolderContents($mount->getInternalPath($view->getAbsolutePath($dir)));
65		foreach ($dirContent as $entry) {
66			$entryName = $entry->getName();
67			$name = $entryName;
68			if ($dir === '' || $dir === '/') {
69				$pathparts = pathinfo($entryName);
70				$timestamp = substr($pathparts['extension'], 1);
71				$name = $pathparts['filename'];
72			} elseif ($timestamp === null) {
73				// for subfolders we need to calculate the timestamp only once
74				$parts = explode('/', ltrim($dir, '/'));
75				$timestamp = substr(pathinfo($parts[0], PATHINFO_EXTENSION), 1);
76			}
77			$originalPath = '';
78			$originalName = substr($entryName, 0, -strlen($timestamp) - 2);
79			if (isset($originalLocations[$originalName][$timestamp])) {
80				$originalPath = $originalLocations[$originalName][$timestamp];
81				if (substr($originalPath, -1) === '/') {
82					$originalPath = substr($originalPath, 0, -1);
83				}
84			}
85			$type = $entry->getMimeType() === ICacheEntry::DIRECTORY_MIMETYPE ? 'dir' : 'file';
86			$i = [
87				'name' => $name,
88				'mtime' => $timestamp,
89				'mimetype' => $type === 'dir' ? 'httpd/unix-directory' : \OC::$server->getMimeTypeDetector()->detectPath($name),
90				'type' => $type,
91				'directory' => ($dir === '/') ? '' : $dir,
92				'size' => $entry->getSize(),
93				'etag' => '',
94				'permissions' => Constants::PERMISSION_ALL - Constants::PERMISSION_SHARE,
95				'fileid' => $entry->getId(),
96			];
97			if ($originalPath) {
98				if ($originalPath !== '.') {
99					$i['extraData'] = $originalPath . '/' . $originalName;
100				} else {
101					$i['extraData'] = $originalName;
102				}
103			}
104			$result[] = new FileInfo($absoluteDir . '/' . $i['name'], $storage, $internalPath . '/' . $i['name'], $i, $mount);
105		}
106
107		if ($sortAttribute !== '') {
108			return \OCA\Files\Helper::sortFiles($result, $sortAttribute, $sortDescending);
109		}
110		return $result;
111	}
112
113	/**
114	 * Format file infos for JSON
115	 *
116	 * @param \OCP\Files\FileInfo[] $fileInfos file infos
117	 */
118	public static function formatFileInfos($fileInfos) {
119		$files = [];
120		foreach ($fileInfos as $i) {
121			$entry = \OCA\Files\Helper::formatFileInfo($i);
122			$entry['id'] = $i->getId();
123			$entry['etag'] = $entry['mtime']; // add fake etag, it is only needed to identify the preview image
124			$entry['permissions'] = \OCP\Constants::PERMISSION_READ;
125			$files[] = $entry;
126		}
127		return $files;
128	}
129}
130