includes/password/MWSaltedPassword.php

   1 <?php
   2 /**
   3  * Implements the MWSaltedPassword class for the MediaWiki software.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 /**
  24  * The old style of MediaWiki password hashing, with a salt. It involves
  25  * running MD5 on the password, and then running MD5 on the salt concatenated
  26  * with the first hash.
  27  *
  28  * @since 1.24
  29  */
  30 class MWSaltedPassword extends ParameterizedPassword {
  31         protected function getDefaultParams() {
  32                 return [];
  33         }
  34
  35         protected function getDelimiter() {
  36                 return ':';
  37         }
  38
  39         public function crypt( $plaintext ) {
  40                 if ( count( $this->args ) == 0 ) {
  41                         $this->args[] = MWCryptRand::generateHex( 8 );
  42                 }
  43
  44                 $this->hash = md5( $this->args[0] . '-' . md5( $plaintext ) );
  45
  46                 if ( !is_string( $this->hash ) || strlen( $this->hash ) < 32 ) {
  47                         throw new PasswordError( 'Error when hashing password.' );
  48                 }
  49         }
  50 }