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82 lines
2.4 KiB
PHP
82 lines
2.4 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
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* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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namespace OC\Repair;
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use OCP\IDBConnection;
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use OCP\IGroupManager;
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use OCP\Migration\IOutput;
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use OCP\Migration\IRepairStep;
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use OCP\Share\IShare;
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class OldGroupMembershipShares implements IRepairStep {
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/**
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* @var array<string, array<string, bool>> [gid => [uid => (bool)]]
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*/
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protected array $memberships = [];
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public function __construct(
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protected readonly IDBConnection $connection,
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protected readonly IGroupManager $groupManager,
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) {
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}
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public function getName(): string {
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return 'Remove shares of old group memberships';
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}
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/**
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* Run repair step.
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* Must throw exception on error.
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*
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* @throws \Exception in case of failure
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*/
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public function run(IOutput $output): void {
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$deletedEntries = 0;
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$query = $this->connection->getQueryBuilder();
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$query->select('s1.id')->selectAlias('s1.share_with', 'user')->selectAlias('s2.share_with', 'group')
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->from('share', 's1')
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->where($query->expr()->isNotNull('s1.parent'))
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// \OC\Share\Constant::$shareTypeGroupUserUnique === 2
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->andWhere($query->expr()->eq('s1.share_type', $query->expr()->literal(2)))
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->andWhere($query->expr()->isNotNull('s2.id'))
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->andWhere($query->expr()->eq('s2.share_type', $query->expr()->literal(IShare::TYPE_GROUP)))
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->leftJoin('s1', 'share', 's2', $query->expr()->eq('s1.parent', 's2.id'));
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$deleteQuery = $this->connection->getQueryBuilder();
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$deleteQuery->delete('share')
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->where($query->expr()->eq('id', $deleteQuery->createParameter('share')));
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$result = $query->executeQuery();
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while ($row = $result->fetch()) {
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if (!$this->isMember($row['group'], $row['user'])) {
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$deletedEntries += $deleteQuery->setParameter('share', (int)$row['id'])
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->executeStatement();
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}
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}
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$result->closeCursor();
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if ($deletedEntries) {
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$output->info('Removed ' . $deletedEntries . ' shares where user is not a member of the group anymore');
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}
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}
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protected function isMember(string $gid, string $uid): bool {
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if (isset($this->memberships[$gid][$uid])) {
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return $this->memberships[$gid][$uid];
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}
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$isMember = $this->groupManager->isInGroup($uid, $gid);
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if (!isset($this->memberships[$gid])) {
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$this->memberships[$gid] = [];
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}
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$this->memberships[$gid][$uid] = $isMember;
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return $isMember;
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}
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}
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