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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2017 Joas Schilling <coding@schilljs.com>
*
* @author Joas Schilling <coding@schilljs.com>
*
* @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 OCA\Talk\Migration;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IConfig;
use OCP\IDBConnection;
use OCP\Migration\SimpleMigrationStep;
use OCP\Migration\IOutput;
use OCP\Security\ISecureRandom;
class Version2000Date20171026140257 extends SimpleMigrationStep {
/** @var IDBConnection */
protected $connection;
/** @var IConfig */
protected $config;
/** @var ISecureRandom */
protected $secureRandom;
/** @var string[] */
protected $tokens;
public function __construct(IDBConnection $connection,
IConfig $config,
ISecureRandom $secureRandom) {
$this->connection = $connection;
$this->config = $config;
$this->secureRandom = $secureRandom;
$this->tokens = [];
}
/**
* @param IOutput $output
* @param \Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
* @param array $options
* @since 13.0.0
*/
public function postSchemaChange(IOutput $output, \Closure $schemaClosure, array $options): void {
if (version_compare($this->config->getAppValue('spreed', 'installed_version', '0.0.0'), '2.0.0', '<')) {
// Migrations only work after 2.0.0
return;
}
$chars = str_replace(['l', '0', '1'], '', ISecureRandom::CHAR_LOWER . ISecureRandom::CHAR_DIGITS);
$entropy = (int) $this->config->getAppValue('spreed', 'token_entropy', 8);
$update = $this->connection->getQueryBuilder();
$update->update('spreedme_rooms')
->set('token', $update->createParameter('token'))
->where($update->expr()->eq('id', $update->createParameter('room_id')));
$query = $this->connection->getQueryBuilder();
$query->select('*')
->from('spreedme_rooms')
->where($query->expr()->emptyString('token'))
->orWhere($query->expr()->isNull('token'));
$result = $query->execute();
$output->startProgress();
while ($row = $result->fetch()) {
$output->advance();
$token = $this->getNewToken($entropy, $chars);
$update->setParameter('token', $token)
->setParameter('room_id', (int) $row['id'], IQueryBuilder::PARAM_INT)
->execute();
}
$output->finishProgress();
}
/**
* @param int $entropy
* @param string $chars
* @return string
*/
protected function getNewToken(int $entropy, string $chars): string {
$token = $this->secureRandom->generate($entropy, $chars);
while (isset($this->tokens[$token])) {
$token = $this->secureRandom->generate($entropy, $chars);
}
$this->tokens[$token] = $token;
return $token;
}
}
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