openstackid/app/libs/OpenId/Services/NonceUniqueIdentifierGenera...

47 lines
1.6 KiB
PHP

<?php namespace OpenId\Services;
/**
* Copyright 2016 OpenStack Foundation
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
use Utils\Model\Identifier;
use Utils\Services\UniqueIdentifierGenerator;
use Zend\Math\Rand;
/**
* Class NonceUniqueIdentifierGenerator
* @package OpenId\Services
*/
final class NonceUniqueIdentifierGenerator extends UniqueIdentifierGenerator {
/*
* MAY contain additional ASCII characters in the range 33-126 inclusive (printable non-whitespace characters), as necessary to make each response unique
*/
const NoncePopulation = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
/**
* Nonce Salt Length
*/
const NonceSaltLength = 32;
/**
* @param Identifier $identifier
* @return Identifier
*/
protected function _generate(Identifier $identifier){
$salt = Rand::getString(self::NonceSaltLength, self::NoncePopulation, true);
$date_part = false;
do{ $date_part = gmdate('Y-m-d\TH:i:s\Z'); } while($date_part === false);
$raw_nonce = $date_part. $salt;
$identifier->setValue($raw_nonce);
return $identifier;
}
}