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
|
<?php
/**
* @copyright Copyright (c) 2017 Vinzenz Rosenkranz <vinzenz.rosenkranz@gmail.com>
*
* @author René Gieling <github@dartcafe.de>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Polls\Service;
use OCA\Polls\Db\Vote;
use OCA\Polls\Db\VoteMapper;
use OCA\Polls\Db\Comment;
use OCA\Polls\Db\CommentMapper;
use OCA\Polls\Db\OptionMapper;
use OCA\Polls\Db\Poll;
class AnonymizeService {
/** @var array */
private $anonList;
/** @var CommentMapper */
private $commentMapper;
/** @var int */
private $pollId;
/** @var OptionMapper */
private $optionMapper;
/** @var string|null */
private $userId;
/** @var VoteMapper */
private $voteMapper;
public function __construct(
CommentMapper $commentMapper,
OptionMapper $optionMapper,
VoteMapper $voteMapper
) {
$this->anonList = [];
$this->commentMapper = $commentMapper;
$this->optionMapper = $optionMapper;
$this->pollId = 0;
$this->userId = null;
$this->voteMapper = $voteMapper;
}
/**
* Anonymizes the participants of a poll
* $array Input list which should be anonymized must be a collection of Vote or Comment
* Returns the original array with anonymized user names
*/
public function anonymize(array &$array): void {
// get mapping for the complete poll
foreach ($array as &$element) {
if (!$element->getUserId() || $element->getUserId() === $this->userId) {
// skip current user
continue;
}
$element->setUserId($this->anonList[$element->getUserId()] ?? 'Unknown user');
}
}
/**
* Initialize anonymizer with pollId and userId
* Creates a mapping list with unique Anonymous strings based on the partcipants of a poll
* $userId - usernames, which will not be anonymized
*/
public function set(int $pollId, string $userId): void {
$this->pollId = $pollId;
$this->userId = $userId;
$votes = $this->voteMapper->findByPoll($pollId);
$comments = $this->commentMapper->findByPoll($pollId);
$options = $this->optionMapper->findByPoll($pollId);
$i = 0;
foreach ($votes as $element) {
if (!array_key_exists($element->getUserId(), $this->anonList) && $element->getUserId() !== $userId) {
$this->anonList[$element->getUserId()] = 'Anonymous ' . ++$i;
}
}
foreach ($comments as $element) {
if (!array_key_exists($element->getUserId(), $this->anonList) && $element->getUserId() !== $userId) {
$this->anonList[$element->getUserId()] = 'Anonymous ' . ++$i;
}
}
foreach ($options as $element) {
if (!array_key_exists($element->getUserId(), $this->anonList) && $element->getUserId() !== $userId) {
$this->anonList[$element->getUserId()] = 'Anonymous ' . ++$i;
}
}
return;
}
public static function replaceUserId(&$arrayOrObject, string $userId) : void {
if (is_array($arrayOrObject)) {
foreach ($arrayOrObject as $item) {
if ($item->getUserId() === $userId) {
continue;
}
$item->generateHashedUserId();
}
return;
}
if ($arrayOrObject->getUserId() === $userId) {
return;
}
$arrayOrObject->generateHashedUserId();
return;
}
}
|
