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<?php
/**
* @copyright Copyright (c) 2018, Roeland Jago Douma <roeland@famdouma.nl>
*
* @author Roeland Jago Douma <roeland@famdouma.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/>.
*
*/
namespace OCA\Richdocuments\Db;
use OCP\AppFramework\Db\DoesNotExistException;
use OCP\AppFramework\Db\Mapper;
use OCP\AppFramework\Utility\ITimeFactory;
use OCP\IDBConnection;
use OCP\Security\ISecureRandom;
class AssetMapper extends Mapper {
/** @var int Limetime of a token is 10 minutes */
const tokenLifeTime = 600;
/** @var ISecureRandom */
private $random;
/** @var ITimeFactory */
private $time;
public function __construct(IDBConnection $db, ISecureRandom $random, ITimeFactory $timeFactory) {
parent::__construct($db, 'richdocuments_assets', Asset::class);
$this->random = $random;
$this->time = $timeFactory;
}
/**
* @param $uid
* @param $fileid
* @return Asset
*/
public function newAsset($uid, $fileid) {
$asset = new Asset();
$asset->setUid($uid);
$asset->setFileid($fileid);
$asset->setTimestamp($this->time->getTime());
$asset->setToken($this->random->generate(64, ISecureRandom::CHAR_UPPER . ISecureRandom::CHAR_LOWER . ISecureRandom::CHAR_DIGITS));
$asset = $this->insert($asset);
return $asset;
}
/**
* @param $token
* @return Asset
* @throws DoesNotExistException
*/
public function getAssetByToken($token) {
$qb = $this->db->getQueryBuilder();
$qb->select('*')
->from('richdocuments_assets')
->where($qb->expr()->eq('token', $qb->createNamedParameter($token)));
$cursor = $qb->execute();
$data = $cursor->fetch();
$cursor->closeCursor();
//There can only be one row since it is a unqiue field
if ($data === false) {
throw new DoesNotExistException('No asset for token found');
}
$asset = Asset::fromRow($data);
// Check the token lifetime
if ($asset->getTimestamp() + self::tokenLifeTime < $this->time->getTime()) {
$this->delete($asset);
throw new DoesNotExistException('No asset for token found');
}
return $asset;
}
}