|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* @author Juan Pablo Villafáñez <[email protected]> |
|
4
|
|
|
* |
|
5
|
|
|
* @copyright Copyright (c) 2018, ownCloud GmbH |
|
6
|
|
|
* @license AGPL-3.0 |
|
7
|
|
|
* |
|
8
|
|
|
* This code is free software: you can redistribute it and/or modify |
|
9
|
|
|
* it under the terms of the GNU Affero General Public License, version 3, |
|
10
|
|
|
* as published by the Free Software Foundation. |
|
11
|
|
|
* |
|
12
|
|
|
* This program is distributed in the hope that it will be useful, |
|
13
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
14
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
15
|
|
|
* GNU Affero General Public License for more details. |
|
16
|
|
|
* |
|
17
|
|
|
* You should have received a copy of the GNU Affero General Public License, version 3, |
|
18
|
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/> |
|
19
|
|
|
* |
|
20
|
|
|
*/ |
|
21
|
|
|
|
|
22
|
|
|
namespace OCA\Files_Sharing; |
|
23
|
|
|
|
|
24
|
|
|
use OCP\IConfig; |
|
25
|
|
|
use OCP\IGroup; |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* Class to handle a blacklist for sharing. The main functionality is to check if a particular group |
|
29
|
|
|
* has been blacklisted for sharing, which means that noone should share with that group. |
|
30
|
|
|
* |
|
31
|
|
|
* Note that this class will only handle the configuration and perform the checks against the configuration |
|
32
|
|
|
* This class won't prevent the sharing action by itself. |
|
33
|
|
|
*/ |
|
34
|
|
|
class SharingBlacklist { |
|
35
|
|
|
/** @var IConfig */ |
|
36
|
|
|
private $config; |
|
37
|
|
|
|
|
38
|
|
|
private $blacklistCache = null; |
|
39
|
|
|
|
|
40
|
|
|
public function __construct(IConfig $config) { |
|
41
|
|
|
$this->config = $config; |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
|
|
/** |
|
45
|
|
|
* Check if the target group is blacklisted |
|
46
|
|
|
* @param IGroup $group the group to check |
|
47
|
|
|
* @return bool true if the group is blacklisted, false otherwise |
|
48
|
|
|
*/ |
|
49
|
|
|
public function isGroupBlacklisted(IGroup $group) { |
|
50
|
|
|
$this->initCache(); |
|
51
|
|
|
|
|
52
|
|
|
$groupId = $group->getGID(); |
|
53
|
|
|
|
|
54
|
|
|
if (isset($this->blacklistCache['receivers']['ids'][$groupId])) { |
|
55
|
|
|
return true; |
|
56
|
|
|
} |
|
57
|
|
|
return false; |
|
58
|
|
|
} |
|
59
|
|
|
|
|
60
|
|
|
/** |
|
61
|
|
|
* Clear the internal cache of this class. Use this function if any of the keys used by this class is changed |
|
62
|
|
|
* outside of this class, such as a direct change of the 'blacklisted_group_displaynames' in the appconfig table |
|
63
|
|
|
* Note that this is an object-based cache. It won't persist for multiple HTTP requests |
|
64
|
|
|
*/ |
|
65
|
|
|
public function clearCache() { |
|
66
|
|
|
$this->blacklistCache = null; |
|
67
|
|
|
} |
|
68
|
|
|
|
|
69
|
|
|
/** |
|
70
|
|
|
* Set the list of groups to be blacklisted by id. |
|
71
|
|
|
* @param string[] $ids a list with the ids of the groups to be blacklisted |
|
72
|
|
|
*/ |
|
73
|
|
|
public function setBlacklistedReceiverGroups(array $ids) { |
|
74
|
|
|
$this->config->setAppValue('files_sharing', 'blacklisted_receiver_groups', \json_encode($ids)); |
|
75
|
|
|
$this->blacklistCache = null; // clear the cache |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* Get the list of blacklisted group ids |
|
80
|
|
|
* Note that this might contain wrong information |
|
81
|
|
|
* @return string[] the list of group ids |
|
82
|
|
|
*/ |
|
83
|
|
|
public function getBlacklistedReceiverGroups() { |
|
84
|
|
|
return \json_decode($this->config->getAppValue('files_sharing', 'blacklisted_receiver_groups', '[]'), true); |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
|
|
private function initCache() { |
|
88
|
|
|
if ($this->blacklistCache === null) { |
|
89
|
|
|
$this->blacklistCache = [ |
|
90
|
|
|
'receivers' => [ |
|
91
|
|
|
'ids' => $this->fetchBlacklistedReceiverGroupIds(), |
|
92
|
|
|
], |
|
93
|
|
|
]; |
|
94
|
|
|
} |
|
95
|
|
|
} |
|
96
|
|
|
|
|
97
|
|
|
private function fetchBlacklistedReceiverGroupIds() { |
|
98
|
|
|
$configuredBlacklist = $this->config->getAppValue('files_sharing', 'blacklisted_receiver_groups', '[]'); |
|
99
|
|
|
$decodedGroups = \json_decode($configuredBlacklist, true); |
|
100
|
|
|
// expected a plain array here |
|
101
|
|
|
$groupSet = []; |
|
102
|
|
|
foreach ($decodedGroups as $group) { |
|
103
|
|
|
$groupSet[$group] = true; |
|
104
|
|
|
} |
|
105
|
|
|
return $groupSet; |
|
106
|
|
|
} |
|
107
|
|
|
} |
|
108
|
|
|
|
owncloud /
core
