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<?php
/**
* @copyright Copyright (c) 2016, ownCloud GmbH.
*
* @author Joas Schilling <coding@schilljs.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\Files_Sharing\Command;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
/**
* Cleanup 'shared::' storage entries that have no matching entries in the
* shares_external table.
*/
class CleanupRemoteStorages extends Command {
/**
* @var IDBConnection
*/
protected $connection;
public function __construct(IDBConnection $connection) {
$this->connection = $connection;
parent::__construct();
}
protected function configure() {
$this
->setName('sharing:cleanup-remote-storages')
->setDescription('Cleanup shared storage entries that have no matching entry in the shares_external table')
->addOption(
'dry-run',
null,
InputOption::VALUE_NONE,
'only show which storages would be deleted'
);
}
public function execute(InputInterface $input, OutputInterface $output) {
$remoteStorages = $this->getRemoteStorages();
$output->writeln(count($remoteStorages) . ' remote storage(s) need(s) to be checked');
$remoteShareIds = $this->getRemoteShareIds();
$output->writeln(count($remoteShareIds) . ' remote share(s) exist');
foreach ($remoteShareIds as $id => $remoteShareId) {
if (isset($remoteStorages[$remoteShareId])) {
if ($input->getOption('dry-run') || $output->isVerbose()) {
$output->writeln("<info>$remoteShareId belongs to remote share $id</info>");
}
unset($remoteStorages[$remoteShareId]);
} else {
$output->writeln("<comment>$remoteShareId for share $id has no matching storage, yet</comment>");
}
}
if (empty($remoteStorages)) {
$output->writeln('<info>no storages deleted</info>');
} else {
$dryRun = $input->getOption('dry-run');
foreach ($remoteStorages as $id => $numericId) {
if ($dryRun) {
$output->writeln("<error>$id [$numericId] can be deleted</error>");
$this->countFiles($numericId, $output);
} else {
$this->deleteStorage($id, $numericId, $output);
}
}
}
}
public function countFiles($numericId, OutputInterface $output) {
$queryBuilder = $this->connection->getQueryBuilder();
$queryBuilder->select($queryBuilder->createFunction('count(fileid)'))
->from('filecache')
->where($queryBuilder->expr()->eq(
'storage',
$queryBuilder->createNamedParameter($numericId, IQueryBuilder::PARAM_STR),
IQueryBuilder::PARAM_STR)
);
$result = $queryBuilder->execute();
$count = $result->fetchColumn();
$output->writeln("$count files can be deleted for storage $numericId");
}
public function deleteStorage($id, $numericId, OutputInterface $output) {
$queryBuilder = $this->connection->getQueryBuilder();
$queryBuilder->delete('storages')
->where($queryBuilder->expr()->eq(
'id',
$queryBuilder->createNamedParameter($id, IQueryBuilder::PARAM_STR),
IQueryBuilder::PARAM_STR)
);
$output->write("deleting $id [$numericId] ... ");
$count = $queryBuilder->execute();
$output->writeln("deleted $count storage");
$this->deleteFiles($numericId, $output);
}
public function deleteFiles($numericId, OutputInterface $output) {
$queryBuilder = $this->connection->getQueryBuilder();
$queryBuilder->delete('filecache')
->where($queryBuilder->expr()->eq(
'storage',
$queryBuilder->createNamedParameter($numericId, IQueryBuilder::PARAM_STR),
IQueryBuilder::PARAM_STR)
);
$output->write("deleting files for storage $numericId ... ");
$count = $queryBuilder->execute();
$output->writeln("deleted $count files");
}
public function getRemoteStorages() {
$queryBuilder = $this->connection->getQueryBuilder();
$queryBuilder->select(['id', 'numeric_id'])
->from('storages')
->where($queryBuilder->expr()->like(
'id',
// match all 'shared::' + 32 characters storages
$queryBuilder->createNamedParameter($this->connection->escapeLikeParameter('shared::') . str_repeat('_', 32)),
IQueryBuilder::PARAM_STR)
)
->andWhere($queryBuilder->expr()->notLike(
'id',
// but not the ones starting with a '/', they are for normal shares
$queryBuilder->createNamedParameter($this->connection->escapeLikeParameter('shared::/') . '%'),
IQueryBuilder::PARAM_STR)
)->orderBy('numeric_id');
$query = $queryBuilder->execute();
$remoteStorages = [];
while ($row = $query->fetch()) {
$remoteStorages[$row['id']] = $row['numeric_id'];
}
return $remoteStorages;
}
public function getRemoteShareIds() {
$queryBuilder = $this->connection->getQueryBuilder();
$queryBuilder->select(['id', 'share_token', 'remote'])
->from('share_external');
$query = $queryBuilder->execute();
$remoteShareIds = [];
while ($row = $query->fetch()) {
$remoteShareIds[$row['id']] = 'shared::' . md5($row['share_token'] . '@' . $row['remote']);
}
return $remoteShareIds;
}
}
|
