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
|
<?php
/**
* ownCloud
*
* @author Michael Gapczynski
* @copyright 2013 Michael Gapczynski mtgap@owncloud.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
namespace OC\Files\Cache;
class Shared_Updater {
// shares which can be removed from oc_share after the delete operation was successful
static private $toRemove = array();
/**
* Correct the parent folders' ETags for all users shared the file at $target
*
* @param string $target
*/
static public function correctFolders($target) {
$uid = \OCP\User::getUser();
$uidOwner = \OC\Files\Filesystem::getOwner($target);
$info = \OC\Files\Filesystem::getFileInfo($target);
$checkedUser = array($uidOwner);
// Correct Shared folders of other users shared with
$users = \OCP\Share::getUsersItemShared('file', $info['fileid'], $uidOwner, true);
if (!empty($users)) {
while (!empty($users)) {
$reshareUsers = array();
foreach ($users as $user) {
if ( !in_array($user, $checkedUser) ) {
$etag = \OC\Files\Filesystem::getETag('');
\OCP\Config::setUserValue($user, 'files_sharing', 'etag', $etag);
// Look for reshares
$reshareUsers = array_merge($reshareUsers, \OCP\Share::getUsersItemShared('file', $info['fileid'], $user, true));
$checkedUser[] = $user;
}
}
$users = $reshareUsers;
}
}
}
/**
* @brief remove all shares for a given file if the file was deleted
*
* @param string $path
*/
private static function removeShare($path) {
$fileSource = self::$toRemove[$path];
if (!\OC\Files\Filesystem::file_exists($path)) {
$query = \OC_DB::prepare('DELETE FROM `*PREFIX*share` WHERE `file_source`=?');
try {
\OC_DB::executeAudited($query, array($fileSource));
} catch (\Exception $e) {
\OCP\Util::writeLog('files_sharing', "can't remove share: " . $e->getMessage(), \OCP\Util::WARN);
}
}
unset(self::$toRemove[$path]);
}
/**
* @param array $params
*/
static public function writeHook($params) {
self::correctFolders($params['path']);
}
/**
* @param array $params
*/
static public function renameHook($params) {
self::correctFolders($params['newpath']);
self::correctFolders(pathinfo($params['oldpath'], PATHINFO_DIRNAME));
}
/**
* @param array $params
*/
static public function deleteHook($params) {
self::correctFolders($params['path']);
$fileInfo = \OC\Files\Filesystem::getFileInfo($params['path']);
// mark file as deleted so that we can clean up the share table if
// the file was deleted successfully
self::$toRemove[$params['path']] = $fileInfo['fileid'];
}
/**
* @param array $params
*/
static public function postDeleteHook($params) {
self::removeShare($params['path']);
}
/**
* @param array $params
*/
static public function shareHook($params) {
if ($params['itemType'] === 'file' || $params['itemType'] === 'folder') {
if (isset($params['uidOwner'])) {
$uidOwner = $params['uidOwner'];
} else {
$uidOwner = \OCP\User::getUser();
}
$users = \OCP\Share::getUsersItemShared($params['itemType'], $params['fileSource'], $uidOwner, true, false);
if (!empty($users)) {
while (!empty($users)) {
$reshareUsers = array();
foreach ($users as $user) {
if ($user !== $uidOwner) {
$etag = \OC\Files\Filesystem::getETag('');
\OCP\Config::setUserValue($user, 'files_sharing', 'etag', $etag);
// Look for reshares
$reshareUsers = array_merge($reshareUsers, \OCP\Share::getUsersItemShared('file', $params['fileSource'], $user, true));
}
}
$users = $reshareUsers;
}
}
}
}
}
|
