120 lines
3.3 KiB
PHP
120 lines
3.3 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Joas Schilling <coding@schilljs.com>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
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* @license AGPL-3.0
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*
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* This code 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, version 3,
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* as published by the Free Software Foundation.
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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, version 3,
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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 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;
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class OldGroupMembershipShares implements IRepairStep {
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/** @var \OCP\IDBConnection */
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protected $connection;
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/** @var \OCP\IGroupManager */
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protected $groupManager;
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/**
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* @var array [gid => [uid => (bool)]]
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*/
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protected $memberships;
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/**
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* @param IDBConnection $connection
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* @param IGroupManager $groupManager
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*/
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public function __construct(IDBConnection $connection, IGroupManager $groupManager) {
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$this->connection = $connection;
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$this->groupManager = $groupManager;
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}
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/**
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* Returns the step's name
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*
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* @return string
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*/
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public function getName() {
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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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* @suppress SqlInjectionChecker
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*/
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public function run(IOutput $output) {
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$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(Share::SHARE_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 = $query->execute();
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while ($row = $result->fetch()) {
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if (!$this->isMember($row['group'], $row['user'])) {
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$deletedEntries += $deleteQuery->setParameter('share', (int) $row['id'])
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->execute();
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}
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}
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$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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/**
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* @param string $gid
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* @param string $uid
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* @return bool
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*/
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protected function isMember($gid, $uid) {
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if (isset($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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