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
|
<?php
/**
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Olivier Paroz <github@oparoz.com>
* @author Robin Appelman <icewind@owncloud.com>
* @author Scrutinizer Auto-Fixer <auto-fixer@scrutinizer-ci.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @copyright Copyright (c) 2015, 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\Utils;
use OC\Files\View;
use OC\Files\Cache\ChangePropagator;
use OC\Files\Filesystem;
use OC\ForbiddenException;
use OC\Hooks\PublicEmitter;
/**
* Class Scanner
*
* Hooks available in scope \OC\Utils\Scanner
* - scanFile(string $absolutePath)
* - scanFolder(string $absolutePath)
*
* @package OC\Files\Utils
*/
class Scanner extends PublicEmitter {
/**
* @var string $user
*/
private $user;
/**
* @var \OC\Files\Cache\ChangePropagator
*/
protected $propagator;
/**
* @var \OCP\IDBConnection
*/
protected $db;
/**
* @param string $user
* @param \OCP\IDBConnection $db
*/
public function __construct($user, $db) {
$this->user = $user;
$this->propagator = new ChangePropagator(new View(''));
$this->db = $db;
}
/**
* get all storages for $dir
*
* @param string $dir
* @return \OC\Files\Mount\MountPoint[]
*/
protected function getMounts($dir) {
//TODO: move to the node based fileapi once that's done
\OC_Util::tearDownFS();
\OC_Util::setupFS($this->user);
$mountManager = Filesystem::getMountManager();
$mounts = $mountManager->findIn($dir);
$mounts[] = $mountManager->find($dir);
$mounts = array_reverse($mounts); //start with the mount of $dir
return $mounts;
}
/**
* attach listeners to the scanner
*
* @param \OC\Files\Mount\MountPoint $mount
*/
protected function attachListener($mount) {
$scanner = $mount->getStorage()->getScanner();
$emitter = $this;
$scanner->listen('\OC\Files\Cache\Scanner', 'scanFile', function ($path) use ($mount, $emitter) {
$emitter->emit('\OC\Files\Utils\Scanner', 'scanFile', array($mount->getMountPoint() . $path));
});
$scanner->listen('\OC\Files\Cache\Scanner', 'scanFolder', function ($path) use ($mount, $emitter) {
$emitter->emit('\OC\Files\Utils\Scanner', 'scanFolder', array($mount->getMountPoint() . $path));
});
$scanner->listen('\OC\Files\Cache\Scanner', 'postScanFile', function ($path) use ($mount, $emitter) {
$emitter->emit('\OC\Files\Utils\Scanner', 'postScanFile', array($mount->getMountPoint() . $path));
});
$scanner->listen('\OC\Files\Cache\Scanner', 'postScanFolder', function ($path) use ($mount, $emitter) {
$emitter->emit('\OC\Files\Utils\Scanner', 'postScanFolder', array($mount->getMountPoint() . $path));
});
// propagate etag and mtimes when files are changed or removed
$propagator = $this->propagator;
$propagatorListener = function ($path) use ($mount, $propagator) {
$fullPath = Filesystem::normalizePath($mount->getMountPoint() . $path);
$propagator->addChange($fullPath);
};
$scanner->listen('\OC\Files\Cache\Scanner', 'addToCache', $propagatorListener);
$scanner->listen('\OC\Files\Cache\Scanner', 'removeFromCache', $propagatorListener);
}
/**
* @param string $dir
*/
public function backgroundScan($dir) {
$mounts = $this->getMounts($dir);
foreach ($mounts as $mount) {
if (is_null($mount->getStorage())) {
continue;
}
$scanner = $mount->getStorage()->getScanner();
$this->attachListener($mount);
$scanner->backgroundScan();
}
$this->propagator->propagateChanges(time());
}
/**
* @param string $dir
* @throws \OC\ForbiddenException
*/
public function scan($dir = '') {
if (!Filesystem::isValidPath($dir)) {
throw new \InvalidArgumentException('Invalid path to scan');
}
$mounts = $this->getMounts($dir);
foreach ($mounts as $mount) {
if (is_null($mount->getStorage())) {
continue;
}
$storage = $mount->getStorage();
// if the home storage isn't writable then the scanner is run as the wrong user
if ($storage->instanceOfStorage('\OC\Files\Storage\Home') and
(!$storage->isCreatable('') or !$storage->isCreatable('files'))
) {
throw new ForbiddenException();
}
$relativePath = $mount->getInternalPath($dir);
$scanner = $storage->getScanner();
$scanner->setUseTransactions(false);
$this->attachListener($mount);
$this->db->beginTransaction();
$scanner->scan($relativePath, \OC\Files\Cache\Scanner::SCAN_RECURSIVE, \OC\Files\Cache\Scanner::REUSE_ETAG | \OC\Files\Cache\Scanner::REUSE_SIZE);
$this->db->commit();
}
$this->propagator->propagateChanges(time());
}
}
|
