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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  /**
  18   * Special setting for auth_shibboleth WAYF.
  19   *
  20   * @package    auth_shibboleth
  21   * @copyright  2017 Stephen Bourget
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  defined('MOODLE_INTERNAL') || die();
  26  
  27  /**
  28   * Special setting for auth_shibboleth WAYF.
  29   *
  30   * @package    auth_shibboleth
  31   * @copyright  2017 Stephen Bourget
  32   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  33   */
  34  class auth_shibboleth_admin_setting_special_idp_configtextarea extends admin_setting_configtextarea {
  35  
  36      /**
  37       * Calls parent::__construct with specific arguments.
  38       */
  39      public function __construct() {
  40          $default = $orgdefault = "urn:mace:organization1:providerID, Example Organization 1
  41          https://another.idp-id.com/shibboleth, Other Example Organization, /Shibboleth.sso/DS/SWITCHaai
  42          urn:mace:organization2:providerID, Example Organization 2, /Shibboleth.sso/WAYF/SWITCHaai";
  43  
  44          parent::__construct('auth_shibboleth/organization_selection',
  45                  get_string('auth_shib_idp_list', 'auth_shibboleth'),
  46                  get_string('auth_shib_idp_list_description', 'auth_shibboleth'), $default, PARAM_RAW, '60', '8');
  47      }
  48  
  49      /**
  50       * We need to overwrite the global "alternate login url" setting if wayf is enabled.
  51       *
  52       * @param string $data Form data.
  53       * @return string Empty when no errors.
  54       */
  55      public function write_setting($data) {
  56          global $CFG;
  57  
  58          $login = get_config('auth_shibboleth', 'alt_login');
  59          if (isset($data) && !empty($data) && isset($login) && $login == 'on') {
  60  
  61              // Need to use the get_idp_list() function here.
  62              require_once($CFG->dirroot.'/auth/shibboleth/auth.php');
  63  
  64              $idplist = get_idp_list($data);
  65              if (count($idplist) < 1) {
  66                  return false;
  67              }
  68              $data = '';
  69              foreach ($idplist as $idp => $value) {
  70                  $data .= $idp.', '.$value[0];
  71                  if (isset($value[1])) {
  72                      // Value[1] is optional.
  73                      $data .= ', '.$value[1] . "\n";
  74                  } else {
  75                      $data .= "\n";
  76                  }
  77              }
  78          }
  79          return parent::write_setting($data);
  80      }
  81  }