55 lines
1.4 KiB
PHP
55 lines
1.4 KiB
PHP
<?php
|
|
declare(strict_types=1);
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Lukas Reschke <lukas@statuscode.ch>
|
|
*
|
|
* @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 OC\Security\CSRF;
|
|
|
|
use OCP\Security\ISecureRandom;
|
|
|
|
/**
|
|
* Class CsrfTokenGenerator is used to generate a cryptographically secure
|
|
* pseudo-random number for the token.
|
|
*
|
|
* @package OC\Security\CSRF
|
|
*/
|
|
class CsrfTokenGenerator {
|
|
/** @var ISecureRandom */
|
|
private $random;
|
|
|
|
/**
|
|
* @param ISecureRandom $random
|
|
*/
|
|
public function __construct(ISecureRandom $random) {
|
|
$this->random = $random;
|
|
}
|
|
|
|
/**
|
|
* Generate a new CSRF token.
|
|
*
|
|
* @param int $length Length of the token in characters.
|
|
* @return string
|
|
*/
|
|
public function generateToken(int $length = 32): string {
|
|
return $this->random->generate($length);
|
|
}
|
|
}
|