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<?php |
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declare(strict_types=1); |
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/** |
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* @copyright Copyright (c) 2021 Robin Appelman <[email protected]> |
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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 OCA\Files\Command; |
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use OCP\IDBConnection; |
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use Symfony\Component\Console\Command\Command; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Output\OutputInterface; |
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class RepairTree extends Command { |
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public const CHUNK_SIZE = 200; |
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/** |
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* @var IDBConnection |
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*/ |
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protected $connection; |
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public function __construct(IDBConnection $connection) { |
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$this->connection = $connection; |
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parent::__construct(); |
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} |
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protected function configure() { |
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$this |
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->setName('files:repair-tree') |
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->setDescription('Try and repair malformed filesystem tree structures') |
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->addOption('dry-run'); |
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} |
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public function execute(InputInterface $input, OutputInterface $output): int { |
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$rows = $this->findBrokenTreeBits(); |
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$fix = !$input->getOption('dry-run'); |
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$output->writeln("Found " . count($rows) . " file entries with an invalid path"); |
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if ($fix) { |
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$this->connection->beginTransaction(); |
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} |
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$query = $this->connection->getQueryBuilder(); |
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$query->update('filecache') |
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->set('path', $query->createParameter('path')) |
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->set('path_hash', $query->func()->md5($query->createParameter('path'))) |
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->set('storage', $query->createParameter('storage')) |
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->where($query->expr()->eq('fileid', $query->createParameter('fileid'))); |
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foreach ($rows as $row) { |
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$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); |
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if ($fix) { |
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$fileId = $this->getFileId((int)$row['parent_storage'], $row['parent_path'] . '/' . $row['name']); |
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if ($fileId > 0) { |
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$output->writeln("Cache entry has already be recreated with id $fileId, deleting instead"); |
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$this->deleteById((int)$row['fileid']); |
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} else { |
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$query->setParameters([ |
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'fileid' => $row['fileid'], |
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'path' => $row['parent_path'] . '/' . $row['name'], |
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'storage' => $row['parent_storage'], |
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]); |
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$query->execute(); |
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} |
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} |
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} |
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if ($fix) { |
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$this->connection->commit(); |
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} |
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return 0; |
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} |
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private function getFileId(int $storage, string $path) { |
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$query = $this->connection->getQueryBuilder(); |
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$query->select('fileid') |
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->from('filecache') |
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->where($query->expr()->eq('storage', $query->createNamedParameter($storage))) |
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->andWhere($query->expr()->eq('path_hash', $query->createNamedParameter(md5($path)))); |
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return $query->execute()->fetch(\PDO::FETCH_COLUMN); |
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} |
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private function deleteById(int $fileId) { |
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$query = $this->connection->getQueryBuilder(); |
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$query->delete('filecache') |
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->where($query->expr()->eq('fileid', $query->createNamedParameter($fileId))); |
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$query->execute(); |
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} |
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private function findBrokenTreeBits(): array { |
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$query = $this->connection->getQueryBuilder(); |
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$query->select('f.fileid', 'f.path', 'f.parent', 'f.name') |
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->selectAlias('p.path', 'parent_path') |
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->selectAlias('p.storage', 'parent_storage') |
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->from('filecache', 'f') |
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->innerJoin('f', 'filecache', 'p', $query->expr()->eq('f.parent', 'p.fileid')) |
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->where($query->expr()->orX( |
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$query->expr()->andX( |
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$query->expr()->neq('p.path_hash', $query->createNamedParameter(md5(''))), |
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$query->expr()->neq('f.path', $query->func()->concat('p.path', $query->func()->concat($query->createNamedParameter('/'), 'f.name'))) |
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), |
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$query->expr()->andX( |
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$query->expr()->eq('p.path_hash', $query->createNamedParameter(md5(''))), |
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$query->expr()->neq('f.path', 'f.name') |
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), |
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$query->expr()->neq('f.storage', 'p.storage') |
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)); |
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return $query->execute()->fetchAll(); |
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} |
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} |
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nextcloud /
server
