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Signed-off-by: Robin Appelman <robin@icewind.nl>
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<?php | ||
/** | ||
* @copyright Copyright (c) 2017 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/>. | ||
* | ||
*/ | ||
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namespace OC\Repair; | ||
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use OCP\IDBConnection; | ||
use OCP\Migration\IOutput; | ||
use OCP\Migration\IRepairStep; | ||
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class RepairInvalidPaths implements IRepairStep { | ||
/** @var IDBConnection */ | ||
private $connection; | ||
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public function __construct(IDBConnection $connection) { | ||
$this->connection = $connection; | ||
} | ||
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public function getName() { | ||
return 'Repair invalid paths in file cache'; | ||
} | ||
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private function getInvalidEntries() { | ||
$builder = $this->connection->getQueryBuilder(); | ||
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$computedPath = $builder->func()->concat( | ||
'p.path', | ||
$builder->func()->concat($builder->createNamedParameter('/'), 'f.name') | ||
); | ||
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//select f.path, f.parent,p.path from oc_filecache f inner join oc_filecache p on f.parent=p.fileid and p.path!='' where f.path != p.path || '/' || f.name; | ||
$query = $builder->select('f.fileid', 'f.path', 'p.path AS parent_path', 'f.name', 'f.parent', 'f.storage') | ||
->from('filecache', 'f') | ||
->innerJoin('f', 'filecache', 'p', $builder->expr()->andX( | ||
$builder->expr()->eq('f.parent', 'p.fileid'), | ||
$builder->expr()->neq('p.name', $builder->createNamedParameter('')) | ||
)) | ||
->where($builder->expr()->neq('f.path', $computedPath)); | ||
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return $query->execute()->fetchAll(); | ||
} | ||
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private function getId($storage, $path) { | ||
$builder = $this->connection->getQueryBuilder(); | ||
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$query = $builder->select('fileid') | ||
->from('filecache') | ||
->where($builder->expr()->eq('storage', $builder->createNamedParameter($storage))) | ||
->andWhere($builder->expr()->eq('path', $builder->createNamedParameter($path))); | ||
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return $query->execute()->fetch(); | ||
} | ||
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private function update($fileid, $newPath) { | ||
$builder = $this->connection->getQueryBuilder(); | ||
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$query = $builder->update('filecache') | ||
->set('path', $builder->createNamedParameter($newPath)) | ||
->set('path_hash', $builder->createNamedParameter(md5($newPath))) | ||
->where($builder->expr()->eq('fileid', $builder->createNamedParameter($fileid))); | ||
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$query->execute(); | ||
} | ||
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private function reparent($from, $to) { | ||
$builder = $this->connection->getQueryBuilder(); | ||
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$query = $builder->update('filecache') | ||
->set('parent', $builder->createNamedParameter($to)) | ||
->where($builder->expr()->eq('fileid', $builder->createNamedParameter($from))); | ||
$query->execute(); | ||
} | ||
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private function delete($fileid) { | ||
$builder = $this->connection->getQueryBuilder(); | ||
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$query = $builder->delete('filecache') | ||
->where($builder->expr()->eq('fileid', $builder->createNamedParameter($fileid))); | ||
$query->execute(); | ||
} | ||
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private function repair() { | ||
$entries = $this->getInvalidEntries(); | ||
foreach ($entries as $entry) { | ||
$calculatedPath = $entry['parent_path'] . '/' . $entry['name']; | ||
if ($newId = $this->getId($entry['storage'], $calculatedPath)) { | ||
// a new entry with the correct path has already been created, reuse that one and delete the incorrect entry | ||
$this->reparent($entry['fileid'], $newId); | ||
$this->delete($entry['fileid']); | ||
} else { | ||
$this->update($entry['fileid'], $calculatedPath); | ||
} | ||
} | ||
return count($entries); | ||
} | ||
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public function run(IOutput $output) { | ||
$count = $this->repair(); | ||
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$output->info('Repaired ' . $count . ' paths'); | ||
} | ||
} |