139 lines
4.1 KiB
PHP
139 lines
4.1 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2020 Arthur Schiwon <blizzz@arthur-schiwon.de>
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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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 OC\Repair;
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use OCP\DB\Exception;
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use OCP\IConfig;
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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 Psr\Log\LoggerInterface;
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use function strlen;
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use function substr;
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use function urldecode;
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use function urlencode;
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class RepairDavShares implements IRepairStep {
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protected const GROUP_PRINCIPAL_PREFIX = 'principals/groups/';
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/** @var IConfig */
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private $config;
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/** @var IDBConnection */
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private $dbc;
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/** @var IGroupManager */
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private $groupManager;
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/** @var LoggerInterface */
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private $logger;
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/** @var bool */
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private $hintInvalidShares = false;
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public function __construct(
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IConfig $config,
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IDBConnection $dbc,
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IGroupManager $groupManager,
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LoggerInterface $logger
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) {
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$this->config = $config;
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$this->dbc = $dbc;
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$this->groupManager = $groupManager;
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$this->logger = $logger;
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}
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/**
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* @inheritDoc
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*/
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public function getName() {
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return 'Repair DAV shares';
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}
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protected function repairUnencodedGroupShares() {
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$qb = $this->dbc->getQueryBuilder();
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$qb->select(['id', 'principaluri'])
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->from('dav_shares')
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->where($qb->expr()->like('principaluri', $qb->createNamedParameter(self::GROUP_PRINCIPAL_PREFIX . '%')));
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$updateQuery = $this->dbc->getQueryBuilder();
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$updateQuery->update('dav_shares')
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->set('principaluri', $updateQuery->createParameter('updatedPrincipalUri'))
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->where($updateQuery->expr()->eq('id', $updateQuery->createParameter('shareId')));
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$statement = $qb->execute();
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while ($share = $statement->fetch()) {
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$gid = substr($share['principaluri'], strlen(self::GROUP_PRINCIPAL_PREFIX));
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$decodedGid = urldecode($gid);
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$encodedGid = urlencode($gid);
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if ($gid === $encodedGid
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|| !$this->groupManager->groupExists($gid)
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|| ($gid !== $decodedGid && $this->groupManager->groupExists($decodedGid))
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) {
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$this->hintInvalidShares = $this->hintInvalidShares || $gid !== $encodedGid;
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continue;
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}
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// Repair when
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// + the group name needs encoding
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// + AND it is not encoded yet
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// + AND there are no ambivalent groups
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try {
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$fixedPrincipal = self::GROUP_PRINCIPAL_PREFIX . $encodedGid;
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$logParameters = [
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'app' => 'core',
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'id' => $share['id'],
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'old' => $share['principaluri'],
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'new' => $fixedPrincipal,
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];
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$updateQuery
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->setParameter('updatedPrincipalUri', $fixedPrincipal)
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->setParameter('shareId', $share['id'])
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->execute();
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$this->logger->info('Repaired principal for dav share {id} from {old} to {new}', $logParameters);
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} catch (Exception $e) {
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$logParameters['message'] = $e->getMessage();
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$logParameters['exception'] = $e;
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$this->logger->info('Could not repair principal for dav share {id} from {old} to {new}: {message}', $logParameters);
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}
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}
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return true;
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}
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/**
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* @inheritDoc
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*/
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public function run(IOutput $output) {
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$versionFromBeforeUpdate = $this->config->getSystemValue('version', '0.0.0');
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if (version_compare($versionFromBeforeUpdate, '20.0.8', '<')
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&& $this->repairUnencodedGroupShares()
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) {
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$output->info('Repaired DAV group shares');
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if ($this->hintInvalidShares) {
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$output->info('Invalid shares might be left in the database, running "occ dav:remove-invalid-shares" can remove them.');
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}
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}
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}
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}
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