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
229
230
231
232
233
234
235
236
237
238
239
240
|
<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Andreas Fischer <bantu@owncloud.com>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Björn Schießle <schiessle@owncloud.com>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Michael Gapczynski <GapczynskiM@gmail.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Roeland Jago Douma <rullzer@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @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/>
*
*/
use OCA\FederatedFileSharing\FederatedShareProvider;
class OC_Share_Backend_File implements OCP\Share_Backend_File_Dependent {
const FORMAT_SHARED_STORAGE = 0;
const FORMAT_GET_FOLDER_CONTENTS = 1;
const FORMAT_FILE_APP_ROOT = 2;
const FORMAT_OPENDIR = 3;
const FORMAT_GET_ALL = 4;
const FORMAT_PERMISSIONS = 5;
const FORMAT_TARGET_NAMES = 6;
private $path;
/** @var FederatedShareProvider */
private $federatedShareProvider;
public function __construct(FederatedShareProvider $federatedShareProvider = null) {
if ($federatedShareProvider) {
$this->federatedShareProvider = $federatedShareProvider;
} else {
$federatedSharingApp = new \OCA\FederatedFileSharing\AppInfo\Application();
$this->federatedShareProvider = $federatedSharingApp->getFederatedShareProvider();
}
}
public function isValidSource($itemSource, $uidOwner) {
try {
$path = \OC\Files\Filesystem::getPath($itemSource);
// FIXME: attributes should not be set here,
// keeping this pattern for now to avoid unexpected
// regressions
$this->path = \OC\Files\Filesystem::normalizePath(basename($path));
return true;
} catch (\OCP\Files\NotFoundException $e) {
return false;
}
}
public function getFilePath($itemSource, $uidOwner) {
if (isset($this->path)) {
$path = $this->path;
$this->path = null;
return $path;
} else {
try {
$path = \OC\Files\Filesystem::getPath($itemSource);
return $path;
} catch (\OCP\Files\NotFoundException $e) {
return false;
}
}
}
/**
* create unique target
* @param string $filePath
* @param string $shareWith
* @param array $exclude (optional)
* @return string
*/
public function generateTarget($filePath, $shareWith, $exclude = null) {
$shareFolder = \OCA\Files_Sharing\Helper::getShareFolder();
$target = \OC\Files\Filesystem::normalizePath($shareFolder . '/' . basename($filePath));
// for group shares we return the target right away
if ($shareWith === false) {
return $target;
}
\OC\Files\Filesystem::initMountPoints($shareWith);
$view = new \OC\Files\View('/' . $shareWith . '/files');
if (!$view->is_dir($shareFolder)) {
$dir = '';
$subdirs = explode('/', $shareFolder);
foreach ($subdirs as $subdir) {
$dir = $dir . '/' . $subdir;
if (!$view->is_dir($dir)) {
$view->mkdir($dir);
}
}
}
$excludeList = (is_array($exclude)) ? $exclude : array();
return \OCA\Files_Sharing\Helper::generateUniqueTarget($target, $excludeList, $view);
}
public function formatItems($items, $format, $parameters = null) {
if ($format == self::FORMAT_SHARED_STORAGE) {
// Only 1 item should come through for this format call
$item = array_shift($items);
return array(
'parent' => $item['parent'],
'path' => $item['path'],
'storage' => $item['storage'],
'permissions' => $item['permissions'],
'uid_owner' => $item['uid_owner'],
);
} else if ($format == self::FORMAT_GET_FOLDER_CONTENTS) {
$files = array();
foreach ($items as $item) {
$file = array();
$file['fileid'] = $item['file_source'];
$file['storage'] = $item['storage'];
$file['path'] = $item['file_target'];
$file['parent'] = $item['file_parent'];
$file['name'] = basename($item['file_target']);
$file['mimetype'] = $item['mimetype'];
$file['mimepart'] = $item['mimepart'];
$file['mtime'] = $item['mtime'];
$file['encrypted'] = $item['encrypted'];
$file['etag'] = $item['etag'];
$file['uid_owner'] = $item['uid_owner'];
$file['displayname_owner'] = $item['displayname_owner'];
$storage = \OC\Files\Filesystem::getStorage('/');
$cache = $storage->getCache();
$file['size'] = $item['size'];
$files[] = $file;
}
return $files;
} else if ($format == self::FORMAT_OPENDIR) {
$files = array();
foreach ($items as $item) {
$files[] = basename($item['file_target']);
}
return $files;
} else if ($format == self::FORMAT_GET_ALL) {
$ids = array();
foreach ($items as $item) {
$ids[] = $item['file_source'];
}
return $ids;
} else if ($format === self::FORMAT_PERMISSIONS) {
$filePermissions = array();
foreach ($items as $item) {
$filePermissions[$item['file_source']] = $item['permissions'];
}
return $filePermissions;
} else if ($format === self::FORMAT_TARGET_NAMES) {
$targets = array();
foreach ($items as $item) {
$targets[] = $item['file_target'];
}
return $targets;
}
return array();
}
/**
* check if server2server share is enabled
*
* @param int $shareType
* @return boolean
*/
public function isShareTypeAllowed($shareType) {
if ($shareType === \OCP\Share::SHARE_TYPE_REMOTE) {
return $this->federatedShareProvider->isOutgoingServer2serverShareEnabled();
}
return true;
}
/**
* resolve reshares to return the correct source item
* @param array $source
* @return array source item
*/
protected static function resolveReshares($source) {
if (isset($source['parent'])) {
$parent = $source['parent'];
while (isset($parent)) {
$query = \OCP\DB::prepare('SELECT `parent`, `uid_owner` FROM `*PREFIX*share` WHERE `id` = ?', 1);
$item = $query->execute(array($parent))->fetchRow();
if (isset($item['parent'])) {
$parent = $item['parent'];
} else {
$fileOwner = $item['uid_owner'];
break;
}
}
} else {
$fileOwner = $source['uid_owner'];
}
if (isset($fileOwner)) {
$source['fileOwner'] = $fileOwner;
} else {
\OCP\Util::writeLog('files_sharing', "No owner found for reshare", \OCP\Util::ERROR);
}
return $source;
}
/**
* @param string $target
* @param array $share
* @return array|false source item
*/
public static function getSource($target, $share) {
if ($share['item_type'] === 'folder' && $target !== '') {
// note: in case of ext storage mount points the path might be empty
// which would cause a leading slash to appear
$share['path'] = ltrim($share['path'] . '/' . $target, '/');
}
return self::resolveReshares($share);
}
}
|
