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Differences Between: [Versions 311 and 402] [Versions 311 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  /**
  18   * Implementaton of the quizaccess_ipaddress plugin.
  19   *
  20   * @package    quizaccess
  21   * @subpackage ipaddress
  22   * @copyright  2011 The Open University
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  
  27  defined('MOODLE_INTERNAL') || die();
  28  
  29  require_once($CFG->dirroot . '/mod/quiz/accessrule/accessrulebase.php');
  30  
  31  
  32  /**
  33   * A rule implementing the ipaddress check against the ->subnet setting.
  34   *
  35   * @copyright  2009 Tim Hunt
  36   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  37   */
  38  class quizaccess_ipaddress extends quiz_access_rule_base {
  39  
  40      public static function make(quiz $quizobj, $timenow, $canignoretimelimits) {
  41          if (empty($quizobj->get_quiz()->subnet)) {
  42              return null;
  43          }
  44  
  45          return new self($quizobj, $timenow);
  46      }
  47  
  48      public function prevent_access() {
  49          if (address_in_subnet(getremoteaddr(), $this->quiz->subnet)) {
  50              return false;
  51          } else {
  52              return get_string('subnetwrong', 'quizaccess_ipaddress');
  53          }
  54      }
  55  }