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
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Joas Schilling <coding@schilljs.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Roger Szabo <roger.szabo@web.de>
* @author Vinicius Cubas Brand <vinicius@eita.org.br>
*
* @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\User_LDAP\Jobs;
use OC\BackgroundJob\TimedJob;
use OCA\User_LDAP\Helper;
use OCA\User_LDAP\LDAP;
use OCA\User_LDAP\Mapping\UserMapping;
use OCA\User_LDAP\User_LDAP;
use OCA\User_LDAP\User_Proxy;
use OCA\User_LDAP\User\DeletedUsersIndex;
/**
* Class CleanUp
*
* a Background job to clean up deleted users
*
* @package OCA\User_LDAP\Jobs;
*/
class CleanUp extends TimedJob {
/** @var int $limit amount of users that should be checked per run */
protected $limit;
/** @var int $defaultIntervalMin default interval in minutes */
protected $defaultIntervalMin = 51;
/** @var User_LDAP|User_Proxy $userBackend */
protected $userBackend;
/** @var \OCP\IConfig $ocConfig */
protected $ocConfig;
/** @var \OCP\IDBConnection $db */
protected $db;
/** @var Helper $ldapHelper */
protected $ldapHelper;
/** @var UserMapping */
protected $mapping;
/** @var DeletedUsersIndex */
protected $dui;
public function __construct() {
$minutes = \OC::$server->getConfig()->getSystemValue(
'ldapUserCleanupInterval', (string)$this->defaultIntervalMin);
$this->setInterval((int)$minutes * 60);
}
/**
* assigns the instances passed to run() to the class properties
* @param array $arguments
*/
public function setArguments($arguments) {
//Dependency Injection is not possible, because the constructor will
//only get values that are serialized to JSON. I.e. whatever we would
//pass in app.php we do add here, except something else is passed e.g.
//in tests.
if(isset($arguments['helper'])) {
$this->ldapHelper = $arguments['helper'];
} else {
$this->ldapHelper = new Helper(\OC::$server->getConfig());
}
if(isset($arguments['ocConfig'])) {
$this->ocConfig = $arguments['ocConfig'];
} else {
$this->ocConfig = \OC::$server->getConfig();
}
if(isset($arguments['userBackend'])) {
$this->userBackend = $arguments['userBackend'];
} else {
$this->userBackend = new User_Proxy(
$this->ldapHelper->getServerConfigurationPrefixes(true),
new LDAP(),
$this->ocConfig,
\OC::$server->getNotificationManager(),
\OC::$server->getUserSession(),
\OC::$server->query('LDAPUserPluginManager')
);
}
if(isset($arguments['db'])) {
$this->db = $arguments['db'];
} else {
$this->db = \OC::$server->getDatabaseConnection();
}
if(isset($arguments['mapping'])) {
$this->mapping = $arguments['mapping'];
} else {
$this->mapping = new UserMapping($this->db);
}
if(isset($arguments['deletedUsersIndex'])) {
$this->dui = $arguments['deletedUsersIndex'];
} else {
$this->dui = new DeletedUsersIndex(
$this->ocConfig, $this->db, $this->mapping);
}
}
/**
* makes the background job do its work
* @param array $argument
*/
public function run($argument) {
$this->setArguments($argument);
if(!$this->isCleanUpAllowed()) {
return;
}
$users = $this->mapping->getList($this->getOffset(), $this->getChunkSize());
if(!is_array($users)) {
//something wrong? Let's start from the beginning next time and
//abort
$this->setOffset(true);
return;
}
$resetOffset = $this->isOffsetResetNecessary(count($users));
$this->checkUsers($users);
$this->setOffset($resetOffset);
}
/**
* checks whether next run should start at 0 again
* @param int $resultCount
* @return bool
*/
public function isOffsetResetNecessary($resultCount) {
return $resultCount < $this->getChunkSize();
}
/**
* checks whether cleaning up LDAP users is allowed
* @return bool
*/
public function isCleanUpAllowed() {
try {
if($this->ldapHelper->haveDisabledConfigurations()) {
return false;
}
} catch (\Exception $e) {
return false;
}
return $this->isCleanUpEnabled();
}
/**
* checks whether clean up is enabled by configuration
* @return bool
*/
private function isCleanUpEnabled() {
return (bool)$this->ocConfig->getSystemValue(
'ldapUserCleanupInterval', (string)$this->defaultIntervalMin);
}
/**
* checks users whether they are still existing
* @param array $users result from getMappedUsers()
*/
private function checkUsers(array $users) {
foreach($users as $user) {
$this->checkUser($user);
}
}
/**
* checks whether a user is still existing in LDAP
* @param string[] $user
*/
private function checkUser(array $user) {
if($this->userBackend->userExistsOnLDAP($user['name'])) {
//still available, all good
return;
}
$this->dui->markUser($user['name']);
}
/**
* gets the offset to fetch users from the mappings table
* @return int
*/
private function getOffset() {
return (int)$this->ocConfig->getAppValue('user_ldap', 'cleanUpJobOffset', 0);
}
/**
* sets the new offset for the next run
* @param bool $reset whether the offset should be set to 0
*/
public function setOffset($reset = false) {
$newOffset = $reset ? 0 :
$this->getOffset() + $this->getChunkSize();
$this->ocConfig->setAppValue('user_ldap', 'cleanUpJobOffset', $newOffset);
}
/**
* returns the chunk size (limit in DB speak)
* @return int
*/
public function getChunkSize() {
if($this->limit === null) {
$this->limit = (int)$this->ocConfig->getAppValue('user_ldap', 'cleanUpJobChunkSize', 50);
}
return $this->limit;
}
}
|
