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   1  <?php
   2  
   3  // This file is part of Moodle - http://moodle.org/
   4  //
   5  // Moodle 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 3 of the License, or
   8  // (at your option) any later version.
   9  //
  10  // Moodle 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
  16  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17  
  18  /**
  19   * Change password page.
  20   *
  21   * @package    core
  22   * @subpackage auth
  23   * @copyright  1999 onwards Martin Dougiamas  http://dougiamas.com
  24   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   */
  26  
  27  require('../config.php');
  28  require_once($CFG->dirroot.'/user/lib.php');
  29  require_once ('change_password_form.php');
  30  require_once($CFG->libdir.'/authlib.php');
  31  
  32  $id     = optional_param('id', SITEID, PARAM_INT); // current course
  33  $return = optional_param('return', 0, PARAM_BOOL); // redirect after password change
  34  
  35  $systemcontext = context_system::instance();
  36  
  37  //HTTPS is required in this page when $CFG->loginhttps enabled
  38  $PAGE->https_required();
  39  
  40  $PAGE->set_url('/login/change_password.php', array('id'=>$id));
  41  
  42  $PAGE->set_context($systemcontext);
  43  
  44  if ($return) {
  45      // this redirect prevents security warning because https can not POST to http pages
  46      if (empty($SESSION->wantsurl)
  47              or stripos(str_replace('https://', 'http://', $SESSION->wantsurl), str_replace('https://', 'http://', $CFG->wwwroot.'/login/change_password.php')) === 0) {
  48          $returnto = "$CFG->wwwroot/user/preferences.php?userid=$USER->id&course=$id";
  49      } else {
  50          $returnto = $SESSION->wantsurl;
  51      }
  52      unset($SESSION->wantsurl);
  53  
  54      redirect($returnto);
  55  }
  56  
  57  $strparticipants = get_string('participants');
  58  
  59  if (!$course = $DB->get_record('course', array('id'=>$id))) {
  60      print_error('invalidcourseid');
  61  }
  62  
  63  // require proper login; guest user can not change password
  64  if (!isloggedin() or isguestuser()) {
  65      if (empty($SESSION->wantsurl)) {
  66          $SESSION->wantsurl = $CFG->httpswwwroot.'/login/change_password.php';
  67      }
  68      redirect(get_login_url());
  69  }
  70  
  71  $PAGE->set_context(context_user::instance($USER->id));
  72  $PAGE->set_pagelayout('admin');
  73  $PAGE->set_course($course);
  74  
  75  // do not require change own password cap if change forced
  76  if (!get_user_preferences('auth_forcepasswordchange', false)) {
  77      require_capability('moodle/user:changeownpassword', $systemcontext);
  78  }
  79  
  80  // do not allow "Logged in as" users to change any passwords
  81  if (\core\session\manager::is_loggedinas()) {
  82      print_error('cannotcallscript');
  83  }
  84  
  85  if (is_mnet_remote_user($USER)) {
  86      $message = get_string('usercannotchangepassword', 'mnet');
  87      if ($idprovider = $DB->get_record('mnet_host', array('id'=>$USER->mnethostid))) {
  88          $message .= get_string('userchangepasswordlink', 'mnet', $idprovider);
  89      }
  90      print_error('userchangepasswordlink', 'mnet', '', $message);
  91  }
  92  
  93  // load the appropriate auth plugin
  94  $userauth = get_auth_plugin($USER->auth);
  95  
  96  if (!$userauth->can_change_password()) {
  97      print_error('nopasswordchange', 'auth');
  98  }
  99  
 100  if ($changeurl = $userauth->change_password_url()) {
 101      // this internal scrip not used
 102      redirect($changeurl);
 103  }
 104  
 105  $mform = new login_change_password_form();
 106  $mform->set_data(array('id'=>$course->id));
 107  
 108  $navlinks = array();
 109  $navlinks[] = array('name' => $strparticipants, 'link' => "$CFG->wwwroot/user/index.php?id=$course->id", 'type' => 'misc');
 110  
 111  if ($mform->is_cancelled()) {
 112      redirect($CFG->wwwroot.'/user/preferences.php?userid='.$USER->id.'&amp;course='.$course->id);
 113  } else if ($data = $mform->get_data()) {
 114  
 115      if (!$userauth->user_update_password($USER, $data->newpassword1)) {
 116          print_error('errorpasswordupdate', 'auth');
 117      }
 118  
 119      user_add_password_history($USER->id, $data->newpassword1);
 120  
 121      if (!empty($CFG->passwordchangelogout)) {
 122          \core\session\manager::kill_user_sessions($USER->id, session_id());
 123      }
 124  
 125      // Reset login lockout - we want to prevent any accidental confusion here.
 126      login_unlock_account($USER);
 127  
 128      // register success changing password
 129      unset_user_preference('auth_forcepasswordchange', $USER);
 130      unset_user_preference('create_password', $USER);
 131  
 132      $strpasswordchanged = get_string('passwordchanged');
 133  
 134      $fullname = fullname($USER, true);
 135  
 136      $PAGE->set_title($strpasswordchanged);
 137      $PAGE->set_heading(fullname($USER));
 138      echo $OUTPUT->header();
 139  
 140      notice($strpasswordchanged, new moodle_url($PAGE->url, array('return'=>1)));
 141  
 142      echo $OUTPUT->footer();
 143      exit;
 144  }
 145  
 146  // make sure we really are on the https page when https login required
 147  $PAGE->verify_https_required();
 148  
 149  $strchangepassword = get_string('changepassword');
 150  
 151  $fullname = fullname($USER, true);
 152  
 153  $PAGE->set_title($strchangepassword);
 154  $PAGE->set_heading($fullname);
 155  echo $OUTPUT->header();
 156  
 157  if (get_user_preferences('auth_forcepasswordchange')) {
 158      echo $OUTPUT->notification(get_string('forcepasswordchangenotice'));
 159  }
 160  $mform->display();
 161  echo $OUTPUT->footer();