updater.php
4.43 KB
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
<?php
/**
* Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Files\Cache;
/**
* listen to filesystem hooks and change the cache accordingly
*/
class Updater {
/**
* resolve a path to a storage and internal path
*
* @param string $path
* @return array consisting of the storage and the internal path
*/
static public function resolvePath($path) {
$view = \OC\Files\Filesystem::getView();
return $view->resolvePath($path);
}
static public function writeUpdate($path) {
/**
* @var \OC\Files\Storage\Storage $storage
* @var string $internalPath
*/
list($storage, $internalPath) = self::resolvePath($path);
if ($storage) {
$cache = $storage->getCache($internalPath);
$scanner = $storage->getScanner($internalPath);
$scanner->scan($internalPath, Scanner::SCAN_SHALLOW);
$cache->correctFolderSize($internalPath);
self::correctFolder($path, $storage->filemtime($internalPath));
}
}
static public function deleteUpdate($path) {
/**
* @var \OC\Files\Storage\Storage $storage
* @var string $internalPath
*/
list($storage, $internalPath) = self::resolvePath($path);
if ($storage) {
$cache = $storage->getCache($internalPath);
$cache->remove($internalPath);
$cache->correctFolderSize($internalPath);
self::correctFolder($path, time());
}
}
static public function renameUpdate($from, $to) {
/**
* @var \OC\Files\Storage\Storage $storageFrom
* @var \OC\Files\Storage\Storage $storageTo
* @var string $internalFrom
* @var string $internalTo
*/
list($storageFrom, $internalFrom) = self::resolvePath($from);
list($storageTo, $internalTo) = self::resolvePath($to);
if ($storageFrom && $storageTo) {
if ($storageFrom === $storageTo) {
$cache = $storageFrom->getCache($internalFrom);
$cache->move($internalFrom, $internalTo);
$cache->correctFolderSize($internalFrom);
$cache->correctFolderSize($internalTo);
self::correctFolder($from, time());
self::correctFolder($to, time());
} else {
self::deleteUpdate($from);
self::writeUpdate($to);
}
}
}
/**
* @brief get file owner and path
* @param string $filename
* @return array with the oweners uid and the owners path
*/
private static function getUidAndFilename($filename) {
$uid = \OC\Files\Filesystem::getOwner($filename);
\OC\Files\Filesystem::initMountPoints($uid);
if ( $uid != \OCP\User::getUser() ) {
$info = \OC\Files\Filesystem::getFileInfo($filename);
$ownerView = new \OC\Files\View('/'.$uid.'/files');
$filename = $ownerView->getPath($info['fileid']);
}
return array($uid, '/files/'.$filename);
}
/**
* Update the mtime and ETag of all parent folders
*
* @param string $path
* @param string $time
*/
static public function correctFolder($path, $time) {
if ($path !== '' && $path !== '/') {
list($owner, $realPath) = self::getUidAndFilename(dirname($path));
/**
* @var \OC\Files\Storage\Storage $storage
* @var string $internalPath
*/
$view = new \OC\Files\View('/' . $owner);
list($storage, $internalPath) = $view->resolvePath($realPath);
$cache = $storage->getCache();
$id = $cache->getId($internalPath);
while ($id !== -1) {
$cache->update($id, array('mtime' => $time, 'etag' => $storage->getETag($internalPath)));
$realPath = dirname($realPath);
// check storage for parent in case we change the storage in this step
list($storage, $internalPath) = $view->resolvePath($realPath);
if ($internalPath) {
$cache = $storage->getCache();
$id = $cache->getId($internalPath);
} else {
$id = -1;
}
}
}
}
/**
* @param array $params
*/
static public function writeHook($params) {
self::writeUpdate($params['path']);
}
/**
* @param array $params
*/
static public function touchHook($params) {
$path = $params['path'];
list($storage, $internalPath) = self::resolvePath($path);
$cache = $storage->getCache();
$id = $cache->getId($internalPath);
if ($id !== -1) {
$cache->update($id, array('etag' => $storage->getETag($internalPath)));
}
self::writeUpdate($path);
}
/**
* @param array $params
*/
static public function renameHook($params) {
self::renameUpdate($params['oldpath'], $params['newpath']);
}
/**
* @param array $params
*/
static public function deleteHook($params) {
self::deleteUpdate($params['path']);
}
}