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
|
<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Tobias Kaminsky <tobias@kaminsky.me>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @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 OCP\IUserSession;
use OCP\Share\IShare;
use Sabre\DAV\PropFind;
/**
* Sabre Plugin to provide share-related properties
*/
class SharesPlugin extends \Sabre\DAV\ServerPlugin {
const NS_OWNCLOUD = 'http://owncloud.org/ns';
const NS_NEXTCLOUD = 'http://nextcloud.org/ns';
const SHARETYPES_PROPERTYNAME = '{http://owncloud.org/ns}share-types';
const SHAREES_PROPERTYNAME = '{http://nextcloud.org/ns}sharees';
/**
* Reference to main server object
*
* @var \Sabre\DAV\Server
*/
private $server;
/**
* @var \OCP\Share\IManager
*/
private $shareManager;
/**
* @var \Sabre\DAV\Tree
*/
private $tree;
/**
* @var string
*/
private $userId;
/**
* @var \OCP\Files\Folder
*/
private $userFolder;
/** @var IShare[] */
private $cachedShares = [];
private $cachedFolders = [];
/**
* @param \Sabre\DAV\Tree $tree tree
* @param IUserSession $userSession user session
* @param \OCP\Files\Folder $userFolder user home folder
* @param \OCP\Share\IManager $shareManager share manager
*/
public function __construct(
\Sabre\DAV\Tree $tree,
IUserSession $userSession,
\OCP\Files\Folder $userFolder,
\OCP\Share\IManager $shareManager
) {
$this->tree = $tree;
$this->shareManager = $shareManager;
$this->userFolder = $userFolder;
$this->userId = $userSession->getUser()->getUID();
}
/**
* This initializes the plugin.
*
* This function is called by \Sabre\DAV\Server, after
* addPlugin is called.
*
* This method should set up the required event subscriptions.
*
* @param \Sabre\DAV\Server $server
*/
public function initialize(\Sabre\DAV\Server $server) {
$server->xml->namespacesMap[self::NS_OWNCLOUD] = 'oc';
$server->xml->elementMap[self::SHARETYPES_PROPERTYNAME] = ShareTypeList::class;
$server->protectedProperties[] = self::SHARETYPES_PROPERTYNAME;
$server->protectedProperties[] = self::SHAREES_PROPERTYNAME;
$this->server = $server;
$this->server->on('propFind', [$this, 'handleGetProperties']);
}
private function getShare(\OCP\Files\Node $node): array {
$result = [];
$requestedShareTypes = [
\OCP\Share::SHARE_TYPE_USER,
\OCP\Share::SHARE_TYPE_GROUP,
\OCP\Share::SHARE_TYPE_LINK,
\OCP\Share::SHARE_TYPE_REMOTE,
\OCP\Share::SHARE_TYPE_EMAIL,
\OCP\Share::SHARE_TYPE_ROOM,
\OCP\Share::SHARE_TYPE_CIRCLE,
];
foreach ($requestedShareTypes as $requestedShareType) {
$shares = $this->shareManager->getSharesBy(
$this->userId,
$requestedShareType,
$node,
false,
-1
);
foreach ($shares as $share) {
$result[] = $share;
}
}
return $result;
}
private function getSharesFolder(\OCP\Files\Folder $node): array {
return $this->shareManager->getSharesInFolder(
$this->userId,
$node,
true
);
}
private function getShares(\Sabre\DAV\INode $sabreNode): array {
if (isset($this->cachedShares[$sabreNode->getId()])) {
$shares = $this->cachedShares[$sabreNode->getId()];
} else {
list($parentPath,) = \Sabre\Uri\split($sabreNode->getPath());
if ($parentPath === '') {
$parentPath = '/';
}
// if we already cached the folder this file is in we know there are no shares for this file
if (array_search($parentPath, $this->cachedFolders) === false) {
$node = $this->userFolder->get($sabreNode->getPath());
$shares = $this->getShare($node);
$this->cachedShares[$sabreNode->getId()] = $shares;
} else {
return [];
}
}
return $shares;
}
/**
* Adds shares to propfind response
*
* @param PropFind $propFind propfind object
* @param \Sabre\DAV\INode $sabreNode sabre node
*/
public function handleGetProperties(
PropFind $propFind,
\Sabre\DAV\INode $sabreNode
) {
if (!($sabreNode instanceof \OCA\DAV\Connector\Sabre\Node)) {
return;
}
// need prefetch ?
if ($sabreNode instanceof \OCA\DAV\Connector\Sabre\Directory
&& $propFind->getDepth() !== 0
&& (
!is_null($propFind->getStatus(self::SHARETYPES_PROPERTYNAME)) ||
!is_null($propFind->getStatus(self::SHAREES_PROPERTYNAME))
)
) {
$folderNode = $this->userFolder->get($sabreNode->getPath());
$this->cachedFolders[] = $sabreNode->getPath();
$childShares = $this->getSharesFolder($folderNode);
foreach ($childShares as $id => $shares) {
$this->cachedShares[$id] = $shares;
}
}
$propFind->handle(self::SHARETYPES_PROPERTYNAME, function () use ($sabreNode) {
$shares = $this->getShares($sabreNode);
$shareTypes = array_unique(array_map(function(IShare $share) {
return $share->getShareType();
}, $shares));
return new ShareTypeList($shareTypes);
});
$propFind->handle(self::SHAREES_PROPERTYNAME, function() use ($sabreNode) {
$shares = $this->getShares($sabreNode);
return new ShareeList($shares);
});
}
}
|
