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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2020 Arthur Schiwon <blizzz@arthur-schiwon.de>
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
*
* @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 OC\Core\Command\Maintenance;
use Symfony\Component\Console\Command\Command;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;
use OCP\IUser;
use OCP\IUserManager;
use OCP\Share\IManager;
use Symfony\Component\Console\Helper\ProgressBar;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
class RepairShareOwnership extends Command {
private IDBConnection $dbConnection;
private IManager $shareManager;
private IUserManager $userManager;
public function __construct(
IDBConnection $dbConnection,
IManager $shareManager,
IUserManager $userManager
) {
$this->dbConnection = $dbConnection;
$this->shareManager = $shareManager;
$this->userManager = $userManager;
parent::__construct();
}
protected function configure() {
$this
->setName('maintenance:repair-share-owner')
->setDescription('repair invalid share-owner entries in the database')
->addOption('dry-run', null, InputOption::VALUE_NONE, "List detected issues without fixing them")
->addArgument('user', InputArgument::OPTIONAL, "User to fix incoming shares for, if omitted all users will be fixed");
}
protected function execute(InputInterface $input, OutputInterface $output): int {
$dryRun = $input->getOption('dry-run');
$userId = $input->getArgument('user');
if ($userId) {
$user = $this->userManager->get($userId);
if (!$user) {
$output->writeln("<error>user $userId not found</error>");
return 1;
}
$found = $this->repairWrongShareOwnershipForUser($user, $dryRun);
} else {
$found = [];
$userCount = $this->userManager->countSeenUsers();
$progress = new ProgressBar($output, $userCount);
$this->userManager->callForSeenUsers(function (IUser $user) use ($dryRun, &$found, $progress) {
$progress->advance();
$found = array_merge($found, $this->repairWrongShareOwnershipForUser($user, $dryRun));
});
$progress->finish();
$output->writeln("");
}
foreach ($found as $item) {
$output->writeln($item);
}
return 0;
}
protected function repairWrongShareOwnershipForUser(IUser $user, bool $dryRun = true): array {
$qb = $this->dbConnection->getQueryBuilder();
$brokenShare = $qb
->select('s.id', 'm.user_id', 's.uid_owner', 's.uid_initiator', 's.share_with', 's.share_type', 's.file_target')
->from('share', 's')
->join('s', 'filecache', 'f', $qb->expr()->eq('s.item_source', $qb->expr()->castColumn('f.fileid', IQueryBuilder::PARAM_STR)))
->join('s', 'mounts', 'm', $qb->expr()->eq('f.storage', 'm.storage_id'))
->where($qb->expr()->neq('m.user_id', 's.uid_owner'))
->andWhere($qb->expr()->eq($qb->func()->concat($qb->expr()->literal('/'), 'm.user_id', $qb->expr()->literal('/')), 'm.mount_point'))
->andWhere($qb->expr()->eq('s.share_with', $qb->createNamedParameter($user->getUID())))
->executeQuery()
->fetchAll();
$found = [];
foreach ($brokenShare as $queryResult) {
$shareId = (int) $queryResult['id'];
$shareType = (int) $queryResult['share_type'];
$fileTarget = $queryResult['file_target'];
$initiator = $queryResult['uid_initiator'];
$receiver = $queryResult['share_with'];
$owner = $queryResult['uid_owner'];
$mountOwner = $queryResult['user_id'];
$found[] = "Found share with id $shareId from \"$initiator\" to \"$receiver\" (target mount \"$fileTarget\"), owned by \"$owner\", that should be owned by \"$mountOwner\"";
if ($dryRun) {
continue;
}
$provider = $this->shareManager->getProviderForType($shareType);
$share = $provider->getShareById($shareId);
if ($share->getShareOwner() === $share->getSharedBy()) {
$share->setSharedBy($mountOwner);
}
$share->setShareOwner($mountOwner);
$this->shareManager->updateShare($share);
}
return $found;
}
}
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