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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   * Change a users email address
  19   *
  20   * @copyright 1999 Martin Dougiamas  http://dougiamas.com
  21   * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  22   * @package core_user
  23   */
  24  
  25  require_once('../config.php');
  26  require_once($CFG->libdir.'/adminlib.php');
  27  require_once($CFG->dirroot.'/user/editlib.php');
  28  require_once($CFG->dirroot.'/user/lib.php');
  29  
  30  $key = required_param('key', PARAM_ALPHANUM);
  31  $id  = required_param('id', PARAM_INT);
  32  
  33  $PAGE->set_url('/user/emailupdate.php', array('id' => $id, 'key' => $key));
  34  $PAGE->set_context(context_system::instance());
  35  
  36  if (!$user = $DB->get_record('user', array('id' => $id))) {
  37      print_error('invaliduserid');
  38  }
  39  
  40  $preferences = get_user_preferences(null, null, $user->id);
  41  $a = new stdClass();
  42  $a->fullname = fullname($user, true);
  43  $stremailupdate = get_string('emailupdate', 'auth', $a);
  44  
  45  $PAGE->set_title(format_string($SITE->fullname) . ": $stremailupdate");
  46  $PAGE->set_heading(format_string($SITE->fullname) . ": $stremailupdate");
  47  
  48  if (empty($preferences['newemailattemptsleft'])) {
  49      redirect("$CFG->wwwroot/user/view.php?id=$user->id");
  50  
  51  } else if ($preferences['newemailattemptsleft'] < 1) {
  52      cancel_email_update($user->id);
  53  
  54      echo $OUTPUT->header();
  55      echo $OUTPUT->box(get_string('auth_outofnewemailupdateattempts', 'auth'), 'center');
  56      echo $OUTPUT->footer();
  57  } else if ($key == $preferences['newemailkey']) {
  58      $olduser = clone($user);
  59      cancel_email_update($user->id);
  60      $user->email = $preferences['newemail'];
  61  
  62      // Detect duplicate before saving.
  63      if ($DB->get_record('user', array('email' => $user->email))) {
  64          redirect(new moodle_url('/user/view.php', ['id' => $user->id]), get_string('emailnowexists', 'auth'));
  65      } else {
  66          // Update user email.
  67          $authplugin = get_auth_plugin($user->auth);
  68          $authplugin->user_update($olduser, $user);
  69          user_update_user($user, false);
  70          $a->email = $user->email;
  71          redirect(
  72                  new moodle_url('/user/view.php', ['id' => $user->id]),
  73                  get_string('emailupdatesuccess', 'auth', $a),
  74                  null,
  75                  \core\output\notification::NOTIFY_SUCCESS
  76              );
  77      }
  78  
  79  } else {
  80      $preferences['newemailattemptsleft']--;
  81      set_user_preference('newemailattemptsleft', $preferences['newemailattemptsleft'], $user->id);
  82      echo $OUTPUT->header();
  83      echo $OUTPUT->box(get_string('auth_invalidnewemailkey', 'auth'), 'center');
  84      echo $OUTPUT->footer();
  85  }