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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2021 Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Files\Command;
use OCP\IDBConnection;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
class RepairTree extends Command {
public const CHUNK_SIZE = 200;
/**
* @var IDBConnection
*/
protected $connection;
public function __construct(IDBConnection $connection) {
$this->connection = $connection;
parent::__construct();
}
protected function configure() {
$this
->setName('files:repair-tree')
->setDescription('Try and repair malformed filesystem tree structures')
->addOption('dry-run');
}
public function execute(InputInterface $input, OutputInterface $output): int {
$rows = $this->findBrokenTreeBits();
$fix = !$input->getOption('dry-run');
$output->writeln("Found " . count($rows) . " file entries with an invalid path");
if ($fix) {
$this->connection->beginTransaction();
}
$query = $this->connection->getQueryBuilder();
$query->update('filecache')
->set('path', $query->createParameter('path'))
->set('path_hash', $query->func()->md5($query->createParameter('path')))
->where($query->expr()->eq('fileid', $query->createParameter('fileid')));
foreach ($rows as $row) {
$output->writeln("Path of file ${row['fileid']} is ${row['path']} but should be ${row['parent_path']}/${row['name']} based on it's parent", OutputInterface::VERBOSITY_VERBOSE);
if ($fix) {
$query->setParameters([
'fileid' => $row['fileid'],
'path' => $row['parent_path'] . '/' . $row['name'],
]);
$query->execute();
}
}
if ($fix) {
$this->connection->commit();
}
return 0;
}
private function findBrokenTreeBits(): array {
$query = $this->connection->getQueryBuilder();
$query->select('f.fileid', 'f.path', 'f.parent', 'f.name')
->selectAlias('p.path', 'parent_path')
->from('filecache', 'f')
->innerJoin('f', 'filecache', 'p', $query->expr()->eq('f.parent', 'p.fileid'))
->where($query->expr()->orX(
$query->expr()->andX(
$query->expr()->neq('p.path_hash', $query->createNamedParameter(md5(''))),
$query->expr()->neq('f.path', $query->func()->concat('p.path', $query->func()->concat($query->createNamedParameter('/'), 'f.name')))
),
$query->expr()->andX(
$query->expr()->eq('p.path_hash', $query->createNamedParameter(md5(''))),
$query->expr()->neq('f.path', 'f.name')
),
$query->expr()->neq('f.storage', 'p.storage')
));
return $query->execute()->fetchAll();
}
}
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