133 lines
4.3 KiB
PHP
133 lines
4.3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2021 Robin Appelman <robin@icewind.nl>
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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 = $this->getFileId($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($row['fileid']);
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} else {
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$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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