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| 1 | +<?php |
| 2 | +declare(strict_types=1); |
| 3 | +/** |
| 4 | + * @copyright Copyright (c) 2019 Joas Schilling <coding@schilljs.com> |
| 5 | + * |
| 6 | + * @license GNU AGPL version 3 or any later version |
| 7 | + * |
| 8 | + * This program is free software: you can redistribute it and/or modify |
| 9 | + * it under the terms of the GNU Affero General Public License as |
| 10 | + * published by the Free Software Foundation, either version 3 of the |
| 11 | + * License, or (at your option) any later version. |
| 12 | + * |
| 13 | + * This program is distributed in the hope that it will be useful, |
| 14 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | + * GNU Affero General Public License for more details. |
| 17 | + * |
| 18 | + * You should have received a copy of the GNU Affero General Public License |
| 19 | + * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | + * |
| 21 | + */ |
| 22 | + |
| 23 | +namespace OCA\DAV\Migration; |
| 24 | + |
| 25 | +use OCA\DAV\CalDAV\CalDavBackend; |
| 26 | +use OCP\IDBConnection; |
| 27 | +use OCP\Migration\IOutput; |
| 28 | +use OCP\Migration\IRepairStep; |
| 29 | + |
| 30 | +class RemoveClassifiedEventActivity implements IRepairStep { |
| 31 | + |
| 32 | + /** @var IDBConnection */ |
| 33 | + private $connection; |
| 34 | + |
| 35 | + public function __construct(IDBConnection $connection) { |
| 36 | + $this->connection = $connection; |
| 37 | + } |
| 38 | + |
| 39 | + /** |
| 40 | + * @inheritdoc |
| 41 | + */ |
| 42 | + public function getName() { |
| 43 | + return 'Remove activity entries of private events'; |
| 44 | + } |
| 45 | + |
| 46 | + /** |
| 47 | + * @inheritdoc |
| 48 | + */ |
| 49 | + public function run(IOutput $output) { |
| 50 | + if (!$this->connection->tableExists('activity')) { |
| 51 | + return; |
| 52 | + } |
| 53 | + |
| 54 | + $deletedEvents = $this->removePrivateEventActivity(); |
| 55 | + $deletedEvents += $this->removeConfidentialUncensoredEventActivity(); |
| 56 | + |
| 57 | + $output->info("Removed $deletedEvents activity entries"); |
| 58 | + } |
| 59 | + |
| 60 | + protected function removePrivateEventActivity(): int { |
| 61 | + $deletedEvents = 0; |
| 62 | + |
| 63 | + $delete = $this->connection->getQueryBuilder(); |
| 64 | + $delete->delete('activity') |
| 65 | + ->where($delete->expr()->neq('affecteduser', $delete->createParameter('owner'))) |
| 66 | + ->andWhere($delete->expr()->eq('object_type', $delete->createParameter('type'))) |
| 67 | + ->andWhere($delete->expr()->eq('object_id', $delete->createParameter('calendar_id'))) |
| 68 | + ->andWhere($delete->expr()->like('subjectparams', $delete->createParameter('event_uid'))); |
| 69 | + |
| 70 | + $query = $this->connection->getQueryBuilder(); |
| 71 | + $query->select('c.principaluri', 'o.calendarid', 'o.uid') |
| 72 | + ->from('calendarobjects', 'o') |
| 73 | + ->leftJoin('o', 'calendars', 'c', $query->expr()->eq('c.id', 'o.calendarid')) |
| 74 | + ->where($query->expr()->eq('o.classification', $query->createNamedParameter(CalDavBackend::CLASSIFICATION_PRIVATE))); |
| 75 | + $result = $query->execute(); |
| 76 | + |
| 77 | + while ($row = $result->fetch()) { |
| 78 | + $delete->setParameter('owner', $this->getPrincipal($row['principaluri'])) |
| 79 | + ->setParameter('type', 'calendar') |
| 80 | + ->setParameter('calendar_id', $row['calendarid']) |
| 81 | + ->setParameter('event_uid', '%' . $this->connection->escapeLikeParameter('{"id":"' . $row['uid'] . '"') . '%'); |
| 82 | + $deletedEvents += $delete->execute(); |
| 83 | + } |
| 84 | + $result->closeCursor(); |
| 85 | + |
| 86 | + return $deletedEvents; |
| 87 | + } |
| 88 | + |
| 89 | + protected function removeConfidentialUncensoredEventActivity(): int { |
| 90 | + $deletedEvents = 0; |
| 91 | + |
| 92 | + $delete = $this->connection->getQueryBuilder(); |
| 93 | + $delete->delete('activity') |
| 94 | + ->where($delete->expr()->neq('affecteduser', $delete->createParameter('owner'))) |
| 95 | + ->andWhere($delete->expr()->eq('object_type', $delete->createParameter('type'))) |
| 96 | + ->andWhere($delete->expr()->eq('object_id', $delete->createParameter('calendar_id'))) |
| 97 | + ->andWhere($delete->expr()->like('subjectparams', $delete->createParameter('event_uid'))) |
| 98 | + ->andWhere($delete->expr()->notLike('subjectparams', $delete->createParameter('filtered_name'))); |
| 99 | + |
| 100 | + $query = $this->connection->getQueryBuilder(); |
| 101 | + $query->select('c.principaluri', 'o.calendarid', 'o.uid') |
| 102 | + ->from('calendarobjects', 'o') |
| 103 | + ->leftJoin('o', 'calendars', 'c', $query->expr()->eq('c.id', 'o.calendarid')) |
| 104 | + ->where($query->expr()->eq('o.classification', $query->createNamedParameter(CalDavBackend::CLASSIFICATION_CONFIDENTIAL))); |
| 105 | + $result = $query->execute(); |
| 106 | + |
| 107 | + while ($row = $result->fetch()) { |
| 108 | + $delete->setParameter('owner', $this->getPrincipal($row['principaluri'])) |
| 109 | + ->setParameter('type', 'calendar') |
| 110 | + ->setParameter('calendar_id', $row['calendarid']) |
| 111 | + ->setParameter('event_uid', '%' . $this->connection->escapeLikeParameter('{"id":"' . $row['uid'] . '"') . '%') |
| 112 | + ->setParameter('filtered_name', '%' . $this->connection->escapeLikeParameter('{"id":"' . $row['uid'] . '","name":"Busy"') . '%'); |
| 113 | + $deletedEvents += $delete->execute(); |
| 114 | + } |
| 115 | + $result->closeCursor(); |
| 116 | + |
| 117 | + return $deletedEvents; |
| 118 | + } |
| 119 | + |
| 120 | + protected function getPrincipal(string $principalUri): string { |
| 121 | + $uri = explode('/', $principalUri); |
| 122 | + return $uri[2]; |
| 123 | + } |
| 124 | +} |
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