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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Björn Schießle <bjoern@schiessle.org>
* @author Joas Schilling <coding@schilljs.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @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\Filesystem;
use OC\Files\Mount\MountPoint;
use OC\Files\Mount\MoveableMount;
use OC\Files\View;
/**
* Shared mount points can be moved by the user
*/
class SharedMount extends MountPoint implements MoveableMount {
/**
* @var \OC\Files\Storage\Shared $storage
*/
protected $storage = null;
/**
* @var \OC\Files\View
*/
private $recipientView;
/**
* @var string
*/
private $user;
/** @var \OCP\Share\IShare */
private $share;
/**
* @param string $storage
* @param SharedMount[] $mountpoints
* @param array|null $arguments
* @param \OCP\Files\Storage\IStorageFactory $loader
*/
public function __construct($storage, array $mountpoints, $arguments = null, $loader = null) {
$this->user = $arguments['user'];
$this->recipientView = new View('/' . $this->user . '/files');
$this->share = $arguments['newShare'];
$newMountPoint = $this->verifyMountPoint($this->share, $mountpoints);
$absMountPoint = '/' . $this->user . '/files' . $newMountPoint;
$arguments['ownerView'] = new View('/' . $this->share->getShareOwner() . '/files');
parent::__construct($storage, $absMountPoint, $arguments, $loader);
}
/**
* check if the parent folder exists otherwise move the mount point up
*
* @param \OCP\Share\IShare $share
* @param SharedMount[] $mountpoints
* @return string
*/
private function verifyMountPoint(\OCP\Share\IShare $share, array $mountpoints) {
$mountPoint = basename($share->getTarget());
$parent = dirname($share->getTarget());
if (!$this->recipientView->is_dir($parent)) {
$parent = Helper::getShareFolder($this->recipientView);
}
$newMountPoint = $this->generateUniqueTarget(
\OC\Files\Filesystem::normalizePath($parent . '/' . $mountPoint),
$this->recipientView,
$mountpoints
);
if ($newMountPoint !== $share->getTarget()) {
$this->updateFileTarget($newMountPoint, $share);
}
return $newMountPoint;
}
/**
* update fileTarget in the database if the mount point changed
*
* @param string $newPath
* @param \OCP\Share\IShare $share
* @return bool
*/
private function updateFileTarget($newPath, &$share) {
$share->setTarget($newPath);
\OC::$server->getShareManager()->moveShare($share, $this->user);
}
/**
* @param string $path
* @param View $view
* @param SharedMount[] $mountpoints
* @return mixed
*/
private function generateUniqueTarget($path, $view, array $mountpoints) {
$pathinfo = pathinfo($path);
$ext = (isset($pathinfo['extension'])) ? '.'.$pathinfo['extension'] : '';
$name = $pathinfo['filename'];
$dir = $pathinfo['dirname'];
// Helper function to find existing mount points
$mountpointExists = function($path) use ($mountpoints) {
foreach ($mountpoints as $mountpoint) {
if ($mountpoint->getShare()->getTarget() === $path) {
return true;
}
}
return false;
};
$i = 2;
while ($view->file_exists($path) || $mountpointExists($path)) {
$path = Filesystem::normalizePath($dir . '/' . $name . ' ('.$i.')' . $ext);
$i++;
}
return $path;
}
/**
* Format a path to be relative to the /user/files/ directory
*
* @param string $path the absolute path
* @return string e.g. turns '/admin/files/test.txt' into '/test.txt'
* @throws \OCA\Files_Sharing\Exceptions\BrokenPath
*/
protected function stripUserFilesPath($path) {
$trimmed = ltrim($path, '/');
$split = explode('/', $trimmed);
// it is not a file relative to data/user/files
if (count($split) < 3 || $split[1] !== 'files') {
\OCP\Util::writeLog('file sharing',
'Can not strip userid and "files/" from path: ' . $path,
\OCP\Util::ERROR);
throw new \OCA\Files_Sharing\Exceptions\BrokenPath('Path does not start with /user/files', 10);
}
// skip 'user' and 'files'
$sliced = array_slice($split, 2);
$relPath = implode('/', $sliced);
return '/' . $relPath;
}
/**
* Move the mount point to $target
*
* @param string $target the target mount point
* @return bool
*/
public function moveMount($target) {
$relTargetPath = $this->stripUserFilesPath($target);
$share = $this->storage->getShare();
$result = true;
try {
$this->updateFileTarget($relTargetPath, $share);
$this->setMountPoint($target);
$this->storage->setMountPoint($relTargetPath);
} catch (\Exception $e) {
\OCP\Util::writeLog('file sharing',
'Could not rename mount point for shared folder "' . $this->getMountPoint() . '" to "' . $target . '"',
\OCP\Util::ERROR);
}
return $result;
}
/**
* Remove the mount points
*
* @return bool
*/
public function removeMount() {
$mountManager = \OC\Files\Filesystem::getMountManager();
/** @var $storage \OC\Files\Storage\Shared */
$storage = $this->getStorage();
$result = $storage->unshareStorage();
$mountManager->removeMount($this->mountPoint);
return $result;
}
/**
* @return \OCP\Share\IShare
*/
public function getShare() {
return $this->share;
}
/**
* Get the file id of the root of the storage
*
* @return int
*/
public function getStorageRootId() {
return $this->share->getNodeId();
}
}
|
