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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
<?php
/**
* ownCloud
*
* @author Jakob Sack
* @copyright 2011 Jakob Sack kde@jakobsack.de
*
* 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/>.
*
*/
abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IProperties {
const GETETAG_PROPERTYNAME = '{DAV:}getetag';
const LASTMODIFIED_PROPERTYNAME = '{DAV:}lastmodified';
/**
* Allow configuring the method used to generate Etags
*
* @var array(class_name, function_name)
*/
public static $ETagFunction = null;
/**
* The path to the current node
*
* @var string
*/
protected $path;
/**
* node fileinfo cache
* @var array
*/
protected $fileinfo_cache;
/**
* node properties cache
* @var array
*/
protected $property_cache = null;
/**
* @brief Sets up the node, expects a full path name
* @param string $path
* @return void
*/
public function __construct($path) {
$this->path = $path;
}
/**
* @brief Returns the name of the node
* @return string
*/
public function getName() {
list(, $name) = Sabre_DAV_URLUtil::splitPath($this->path);
return $name;
}
/**
* @brief Renames the node
* @param string $name The new name
* @return void
*/
public function setName($name) {
list($parentPath, ) = Sabre_DAV_URLUtil::splitPath($this->path);
list(, $newName) = Sabre_DAV_URLUtil::splitPath($name);
$newPath = $parentPath . '/' . $newName;
$oldPath = $this->path;
OC_Filesystem::rename($this->path, $newPath);
$this->path = $newPath;
$query = OC_DB::prepare( 'UPDATE `*PREFIX*properties` SET `propertypath` = ? WHERE `userid` = ? AND `propertypath` = ?' );
$query->execute( array( $newPath, OC_User::getUser(), $oldPath ));
}
public function setFileinfoCache($fileinfo_cache)
{
$this->fileinfo_cache = $fileinfo_cache;
}
/**
* @brief Ensure that the fileinfo cache is filled
& @note Uses OC_FileCache or a direct stat
*/
protected function getFileinfoCache() {
if (!isset($this->fileinfo_cache)) {
if ($fileinfo_cache = OC_FileCache::get($this->path)) {
} else {
$fileinfo_cache = OC_Filesystem::stat($this->path);
}
$this->fileinfo_cache = $fileinfo_cache;
}
}
public function setPropertyCache($property_cache)
{
$this->property_cache = $property_cache;
}
/**
* @brief Returns the last modification time, as a unix timestamp
* @return int
*/
public function getLastModified() {
$this->getFileinfoCache();
return $this->fileinfo_cache['mtime'];
}
/**
* sets the last modification time of the file (mtime) to the value given
* in the second parameter or to now if the second param is empty.
* Even if the modification time is set to a custom value the access time is set to now.
*/
public function touch($mtime) {
OC_Filesystem::touch($this->path, $mtime);
}
/**
* @brief Updates properties on this node,
* @param array $mutations
* @see Sabre_DAV_IProperties::updateProperties
* @return bool|array
*/
public function updateProperties($properties) {
$existing = $this->getProperties(array());
foreach($properties as $propertyName => $propertyValue) {
// If it was null, we need to delete the property
if (is_null($propertyValue)) {
if(array_key_exists( $propertyName, $existing )) {
$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*properties` WHERE `userid` = ? AND `propertypath` = ? AND `propertyname` = ?' );
$query->execute( array( OC_User::getUser(), $this->path, $propertyName ));
}
}
else {
if( strcmp( $propertyName, self::LASTMODIFIED_PROPERTYNAME) === 0 ) {
$this->touch($propertyValue);
} else {
if(!array_key_exists( $propertyName, $existing )) {
$query = OC_DB::prepare( 'INSERT INTO `*PREFIX*properties` (`userid`,`propertypath`,`propertyname`,`propertyvalue`) VALUES(?,?,?,?)' );
$query->execute( array( OC_User::getUser(), $this->path, $propertyName, $propertyValue ));
} else {
$query = OC_DB::prepare( 'UPDATE `*PREFIX*properties` SET `propertyvalue` = ? WHERE `userid` = ? AND `propertypath` = ? AND `propertyname` = ?' );
$query->execute( array( $propertyValue, OC_User::getUser(), $this->path, $propertyName ));
}
}
}
}
$this->setPropertyCache(null);
return true;
}
/**
* @brief Returns a list of properties for this nodes.;
* @param array $properties
* @return array
* @note The properties list is a list of propertynames the client
* requested, encoded as xmlnamespace#tagName, for example:
* http://www.example.org/namespace#author If the array is empty, all
* properties should be returned
*/
public function getProperties($properties) {
if (is_null($this->property_cache)) {
$query = OC_DB::prepare( 'SELECT * FROM `*PREFIX*properties` WHERE `userid` = ? AND `propertypath` = ?' );
$result = $query->execute( array( OC_User::getUser(), $this->path ));
$this->property_cache = array();
while( $row = $result->fetchRow()) {
$this->property_cache[$row['propertyname']] = $row['propertyvalue'];
}
}
// if the array was empty, we need to return everything
if(count($properties) == 0) {
return $this->property_cache;
}
$props = array();
foreach($properties as $property) {
if (isset($this->property_cache[$property])) $props[$property] = $this->property_cache[$property];
}
return $props;
}
/**
* @brief Creates a ETag for this path.
* @param string $path Path of the file
* @return string|null Returns null if the ETag can not effectively be determined
*/
static protected function createETag($path) {
if(self::$ETagFunction) {
$hash = call_user_func(self::$ETagFunction, $path);
return $hash;
}else{
return uniqid('', true);
}
}
/**
* @brief Returns the ETag surrounded by double-quotes for this path.
* @param string $path Path of the file
* @return string|null Returns null if the ETag can not effectively be determined
*/
static public function getETagPropertyForPath($path) {
$tag = self::createETag($path);
if (empty($tag)) {
return null;
}
$etag = '"'.$tag.'"';
$query = OC_DB::prepare( 'INSERT INTO `*PREFIX*properties` (`userid`,`propertypath`,`propertyname`,`propertyvalue`) VALUES(?,?,?,?)' );
$query->execute( array( OC_User::getUser(), $path, self::GETETAG_PROPERTYNAME, $etag ));
return $etag;
}
/**
* @brief Remove the ETag from the cache.
* @param string $path Path of the file
*/
static public function removeETagPropertyForPath($path) {
// remove tags from this and parent paths
$paths = array();
while ($path != '/' && $path != '.' && $path != '' && $path != '\\') {
$paths[] = $path;
$path = dirname($path);
}
if (empty($paths)) {
return;
}
$paths[] = $path;
$path_placeholders = join(',', array_fill(0, count($paths), '?'));
$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*properties`'
.' WHERE `userid` = ?'
.' AND `propertyname` = ?'
.' AND `propertypath` IN ('.$path_placeholders.')'
);
$vals = array( OC_User::getUser(), self::GETETAG_PROPERTYNAME );
$query->execute(array_merge( $vals, $paths ));
}
}
|
