81 lines
2.1 KiB
PHP
81 lines
2.1 KiB
PHP
<?php
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/**
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* Nextcloud - user_sql
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*
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* @copyright 2018 Marcin Łojewski <dev@mlojewski.me>
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* @author Marcin Łojewski <dev@mlojewski.me>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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namespace OCA\UserSQL\Crypto;
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use OCP\IL10N;
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require_once "Phpass.php";
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/**
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* Drupal 7 overrides of phpass hash implementation.
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*
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* @author BrandonKerr
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*/
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class Drupal7 extends Phpass
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{
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/**
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* The expected (and maximum) number of characters in a hashed password.
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*/
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const DRUPAL_HASH_LENGTH = 55;
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/**
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* @param string $password Password to encrypt.
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* @param string $setting Hash settings.
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*
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* @return string|null Generated hash. Null on invalid settings.
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*/
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private function crypt($password, $setting)
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{
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$countLog2 = strpos(self::ITOA64, $setting[3]);
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if ($countLog2 < 7 || $countLog2 > 30) {
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return null;
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}
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$count = 1 << $countLog2;
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$salt = substr($setting, 4, 8);
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if (strlen($salt) !== 8) {
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return null;
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}
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$hash = hash('sha512', $salt . $password, true);
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do {
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$hash = hash('sha512', $hash . $password, true);
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} while (--$count);
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$output = substr($setting, 0, 12);
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$output .= $this->encode64($hash, strlen($hash));
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return substr($output, 0, self::DRUPAL_HASH_LENGTH);
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}
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/**
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* @inheritdoc
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*/
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protected function getAlgorithmName()
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{
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return "Drupal 7";
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}
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}
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