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<?php |
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/** |
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* @copyright Copyright (c) 2017 Vinzenz Rosenkranz <[email protected]> |
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* |
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* @author René Gieling <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OCA\Polls\Service; |
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use OCA\Polls\Db\Vote; |
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use OCA\Polls\Db\VoteMapper; |
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use OCA\Polls\Db\Comment; |
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use OCA\Polls\Db\CommentMapper; |
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class AnonymizeService { |
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/** @var VoteMapper */ |
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private $voteMapper; |
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/** @var CommentMapper */ |
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private $commentMapper; |
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/** @var array */ |
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private $anonList = []; |
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/** @var string */ |
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private $userId; |
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/** @var int */ |
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private $pollId; |
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public function __construct( |
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VoteMapper $voteMapper, |
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CommentMapper $commentMapper |
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) { |
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$this->voteMapper = $voteMapper; |
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$this->commentMapper = $commentMapper; |
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} |
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/** |
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* Anonymizes the participants of a poll |
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* $array Input list which should be anonymized must be a collection of Vote or Comment |
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* Returns the original array with anonymized user names |
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*/ |
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private function anonymize(array $array): array { |
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// get mapping for the complete poll |
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foreach ($array as &$element) { |
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if ($element->getUserId() === $this->userId) { |
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// skip current user |
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continue; |
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} |
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$element->setUserId($this->anonList[$element->getUserId()] ?? 'Unknown user'); |
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} |
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return $array; |
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} |
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/** |
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* Initialize anonymizer with pollId and userId |
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* Creates a mapping list with unique Anonymous strings based on the partcipants of a poll |
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* $userId - usernames, which will not be anonymized |
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*/ |
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public function set(int $pollId, string $userId): void { |
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$this->pollId = $pollId; |
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$this->userId = $userId; |
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$votes = $this->voteMapper->findByPoll($pollId); |
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$comments = $this->commentMapper->findByPoll($pollId); |
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$i = 0; |
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foreach ($votes as $element) { |
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if (!array_key_exists($element->getUserId(), $this->anonList) && $element->getUserId() !== $userId) { |
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$this->anonList[$element->getUserId()] = 'Anonymous ' . ++$i; |
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} |
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} |
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foreach ($comments as $element) { |
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if (!array_key_exists($element->getUserId(), $this->anonList) && $element->getUserId() !== $userId) { |
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$this->anonList[$element->getUserId()] = 'Anonymous ' . ++$i; |
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} |
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} |
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return; |
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} |
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/** |
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* Anonymizes the comments of a poll |
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* Returns anonymized comments |
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*/ |
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public function getComments(): array { |
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return $this->anonymize($this->commentMapper->findByPoll($this->pollId)); |
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} |
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/** |
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* Anonymizes the participants of a poll |
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* Returns anonymized votes |
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*/ |
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public function getVotes(): array { |
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return $this->anonymize($this->voteMapper->findByPoll($this->pollId)); |
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} |
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} |
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nextcloud /
polls
