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   1  <?php
   2  /**
   3   * Implements the InvalidPassword 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   * Represents an invalid password hash. It is represented as the empty string (i.e.,
  25   * a password hash with no type).
  26   *
  27   * No two invalid passwords are equal. Comparing anything to an invalid password will
  28   * return false.
  29   *
  30   * @since 1.24
  31   */
  32  class InvalidPassword extends Password {
  33  	public function crypt( $plaintext ) {
  34      }
  35  
  36  	public function toString() {
  37          return '';
  38      }
  39  
  40  	public function equals( $other ) {
  41          return false;
  42      }
  43  
  44  	public function needsUpdate() {
  45          return false;
  46      }
  47  }