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
|
<?php
/**
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @copyright Copyright (c) 2016, ownCloud, Inc.
* @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 OC\Files\Storage\Wrapper;
use OCP\Files\Cache\ICacheEntry;
class Quota extends Wrapper {
/**
* @var int $quota
*/
protected $quota;
/**
* @var string $sizeRoot
*/
protected $sizeRoot;
/**
* @param array $parameters
*/
public function __construct($parameters) {
$this->storage = $parameters['storage'];
$this->quota = $parameters['quota'];
$this->sizeRoot = isset($parameters['root']) ? $parameters['root'] : '';
}
/**
* @return int quota value
*/
public function getQuota() {
return $this->quota;
}
/**
* @param string $path
* @param \OC\Files\Storage\Storage $storage
*/
protected function getSize($path, $storage = null) {
if (is_null($storage)) {
$cache = $this->getCache();
} else {
$cache = $storage->getCache();
}
$data = $cache->get($path);
if ($data instanceof ICacheEntry and isset($data['size'])) {
return $data['size'];
} else {
return \OCP\Files\FileInfo::SPACE_NOT_COMPUTED;
}
}
/**
* Get free space as limited by the quota
*
* @param string $path
* @return int
*/
public function free_space($path) {
if ($this->quota < 0) {
return $this->storage->free_space($path);
} else {
$used = $this->getSize($this->sizeRoot);
if ($used < 0) {
return \OCP\Files\FileInfo::SPACE_NOT_COMPUTED;
} else {
$free = $this->storage->free_space($path);
$quotaFree = max($this->quota - $used, 0);
// if free space is known
if ($free >= 0) {
$free = min($free, $quotaFree);
} else {
$free = $quotaFree;
}
return $free;
}
}
}
/**
* see http://php.net/manual/en/function.file_put_contents.php
*
* @param string $path
* @param string $data
* @return bool
*/
public function file_put_contents($path, $data) {
$free = $this->free_space('');
if ($free < 0 or strlen($data) < $free) {
return $this->storage->file_put_contents($path, $data);
} else {
return false;
}
}
/**
* see http://php.net/manual/en/function.copy.php
*
* @param string $source
* @param string $target
* @return bool
*/
public function copy($source, $target) {
$free = $this->free_space('');
if ($free < 0 or $this->getSize($source) < $free) {
return $this->storage->copy($source, $target);
} else {
return false;
}
}
/**
* see http://php.net/manual/en/function.fopen.php
*
* @param string $path
* @param string $mode
* @return resource
*/
public function fopen($path, $mode) {
$source = $this->storage->fopen($path, $mode);
// don't apply quota for part files
if (!$this->isPartFile($path)) {
$free = $this->free_space('');
if ($source && $free >= 0 && $mode !== 'r' && $mode !== 'rb') {
// only apply quota for files, not metadata, trash or others
if (strpos(ltrim($path, '/'), 'files/') === 0) {
return \OC\Files\Stream\Quota::wrap($source, $free);
}
}
}
return $source;
}
/**
* Checks whether the given path is a part file
*
* @param string $path Path that may identify a .part file
* @return string File path without .part extension
* @note this is needed for reusing keys
*/
private function isPartFile($path) {
$extension = pathinfo($path, PATHINFO_EXTENSION);
return ($extension === 'part');
}
/**
* @param \OCP\Files\Storage $sourceStorage
* @param string $sourceInternalPath
* @param string $targetInternalPath
* @return bool
*/
public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
$free = $this->free_space('');
if ($free < 0 or $this->getSize($sourceInternalPath, $sourceStorage) < $free) {
return $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
} else {
return false;
}
}
/**
* @param \OCP\Files\Storage $sourceStorage
* @param string $sourceInternalPath
* @param string $targetInternalPath
* @return bool
*/
public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
$free = $this->free_space('');
if ($free < 0 or $this->getSize($sourceInternalPath, $sourceStorage) < $free) {
return $this->storage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
} else {
return false;
}
}
}
|