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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  namespace tool_mfa\local\factor;
  18  
  19  /**
  20   * Fallback factor class.
  21   *
  22   * @package     tool_mfa
  23   * @author      Peter Burnett <peterburnett@catalyst-au.net>
  24   * @copyright   Catalyst IT
  25   * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  26   */
  27  class fallback extends object_factor_base {
  28  
  29      /**
  30       * Overridden constructor. Name is hard set to 'fallback'.
  31       */
  32      public function __construct() {
  33          $this->name = 'fallback';
  34      }
  35  
  36      /**
  37       * {@inheritDoc}
  38       */
  39      public function get_display_name(): string {
  40          return get_string('fallback', 'tool_mfa');
  41      }
  42  
  43      /**
  44       * {@inheritDoc}
  45       */
  46      public function get_info(): string {
  47          return get_string('fallback_info', 'tool_mfa');
  48      }
  49  
  50      /**
  51       * {@inheritDoc}
  52       */
  53      public function get_state(): string {
  54          return \tool_mfa\plugininfo\factor::STATE_FAIL;
  55      }
  56  
  57      /**
  58       * Sets the state of the factor check into the session.
  59       * Returns whether storing the var was successful.
  60       *
  61       * @param string $state
  62       * @return bool
  63       */
  64      public function set_state(string $state): bool {
  65          return false;
  66      }
  67  }