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
|
<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Joas Schilling <coding@schilljs.com>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @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 OCA\DAV\Connector\Sabre;
use Sabre\DAV\Locks\LockInfo;
use Sabre\DAV\ServerPlugin;
use Sabre\DAV\Xml\Property\LockDiscovery;
use Sabre\DAV\Xml\Property\SupportedLock;
use Sabre\HTTP\RequestInterface;
use Sabre\HTTP\ResponseInterface;
use Sabre\DAV\PropFind;
use Sabre\DAV\INode;
/**
* Class FakeLockerPlugin is a plugin only used when connections come in from
* OS X via Finder. The fake locking plugin does emulate Class 2 WebDAV support
* (locking of files) which allows Finder to access the storage in write mode as
* well.
*
* No real locking is performed, instead the plugin just returns always positive
* responses.
*
* @see https://github.com/owncloud/core/issues/17732
* @package OCA\DAV\Connector\Sabre
*/
class FakeLockerPlugin extends ServerPlugin {
/** @var \Sabre\DAV\Server */
private $server;
/** {@inheritDoc} */
public function initialize(\Sabre\DAV\Server $server) {
$this->server = $server;
$this->server->on('method:LOCK', [$this, 'fakeLockProvider'], 1);
$this->server->on('method:UNLOCK', [$this, 'fakeUnlockProvider'], 1);
$server->on('propFind', [$this, 'propFind']);
$server->on('validateTokens', [$this, 'validateTokens']);
}
/**
* Indicate that we support LOCK and UNLOCK
*
* @param string $path
* @return string[]
*/
public function getHTTPMethods($path) {
return [
'LOCK',
'UNLOCK',
];
}
/**
* Indicate that we support locking
*
* @return integer[]
*/
function getFeatures() {
return [2];
}
/**
* Return some dummy response for PROPFIND requests with regard to locking
*
* @param PropFind $propFind
* @param INode $node
* @return void
*/
function propFind(PropFind $propFind, INode $node) {
$propFind->handle('{DAV:}supportedlock', function() {
return new SupportedLock(true);
});
$propFind->handle('{DAV:}lockdiscovery', function() use ($propFind) {
return new LockDiscovery([]);
});
}
/**
* Mark a locking token always as valid
*
* @param RequestInterface $request
* @param array $conditions
*/
public function validateTokens(RequestInterface $request, &$conditions) {
foreach($conditions as &$fileCondition) {
if(isset($fileCondition['tokens'])) {
foreach($fileCondition['tokens'] as &$token) {
if(isset($token['token'])) {
if(substr($token['token'], 0, 16) === 'opaquelocktoken:') {
$token['validToken'] = true;
}
}
}
}
}
}
/**
* Fakes a successful LOCK
*
* @param RequestInterface $request
* @param ResponseInterface $response
* @return bool
*/
public function fakeLockProvider(RequestInterface $request,
ResponseInterface $response) {
$lockInfo = new LockInfo();
$lockInfo->token = md5($request->getPath());
$lockInfo->uri = $request->getPath();
$lockInfo->depth = \Sabre\DAV\Server::DEPTH_INFINITY;
$lockInfo->timeout = 1800;
$body = $this->server->xml->write('{DAV:}prop', [
'{DAV:}lockdiscovery' =>
new LockDiscovery([$lockInfo])
]);
$response->setStatus(200);
$response->setBody($body);
return false;
}
/**
* Fakes a successful LOCK
*
* @param RequestInterface $request
* @param ResponseInterface $response
* @return bool
*/
public function fakeUnlockProvider(RequestInterface $request,
ResponseInterface $response) {
$response->setStatus(204);
$response->setHeader('Content-Length', '0');
return false;
}
}
|
