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Differences Between: [Versions 310 and 403] [Versions 311 and 403] [Versions 39 and 403] [Versions 400 and 403] [Versions 401 and 403]

   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  use mod_quiz\local\access_rule_base;
  18  use mod_quiz\quiz_settings;
  19  
  20  /**
  21   * A rule implementing the ipaddress check against the ->subnet setting.
  22   *
  23   * @package   quizaccess_ipaddress
  24   * @copyright 2009 Tim Hunt
  25   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  26   */
  27  class quizaccess_ipaddress extends access_rule_base {
  28  
  29      public static function make(quiz_settings $quizobj, $timenow, $canignoretimelimits) {
  30          if (empty($quizobj->get_quiz()->subnet)) {
  31              return null;
  32          }
  33  
  34          return new self($quizobj, $timenow);
  35      }
  36  
  37      public function prevent_access() {
  38          if (address_in_subnet(getremoteaddr(), $this->quiz->subnet)) {
  39              return false;
  40          } else {
  41              return get_string('subnetwrong', 'quizaccess_ipaddress');
  42          }
  43      }
  44  }