login/change_password_form.php

   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 form definition.
  20  *
  21  * @package    core
  22  * @subpackage auth
  23  * @copyright  2006 Petr Skoda {@link http://skodak.org}
  24  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  */
  26
  27 defined('MOODLE_INTERNAL') || die();
  28
  29 require_once $CFG->libdir.'/formslib.php';
  30
  31 class login_change_password_form extends moodleform {
  32
  33     function definition() {
  34         global $USER, $CFG;
  35
  36         $mform = $this->_form;
  37         $mform->setDisableShortforms(true);
  38
  39         $mform->addElement('header', 'changepassword', get_string('changepassword'), '');
  40
  41         // visible elements
  42         $mform->addElement('static', 'username', get_string('username'), $USER->username);
  43
  44         $policies = array();
  45         if (!empty($CFG->passwordpolicy)) {
  46             $policies[] = print_password_policy();
  47         }
  48         if (!empty($CFG->passwordreuselimit) and $CFG->passwordreuselimit > 0) {
  49             $policies[] = get_string('informminpasswordreuselimit', 'auth', $CFG->passwordreuselimit);
  50         }
  51         if ($policies) {
  52             $mform->addElement('static', 'passwordpolicyinfo', '', implode('<br />', $policies));
  53         }
  54         $mform->addElement('password', 'password', get_string('oldpassword'));
  55         $mform->addRule('password', get_string('required'), 'required', null, 'client');
  56         $mform->setType('password', PARAM_RAW);
  57
  58         $mform->addElement('password', 'newpassword1', get_string('newpassword'));
  59         $mform->addRule('newpassword1', get_string('required'), 'required', null, 'client');
  60         $mform->setType('newpassword1', PARAM_RAW);
  61
  62         $mform->addElement('password', 'newpassword2', get_string('newpassword').' ('.get_String('again').')');
  63         $mform->addRule('newpassword2', get_string('required'), 'required', null, 'client');
  64         $mform->setType('newpassword2', PARAM_RAW);
  65
  66
  67         // hidden optional params
  68         $mform->addElement('hidden', 'id', 0);
  69         $mform->setType('id', PARAM_INT);
  70
  71         // buttons
  72         if (get_user_preferences('auth_forcepasswordchange')) {
  73             $this->add_action_buttons(false);
  74         } else {
  75             $this->add_action_buttons(true);
  76         }
  77     }
  78
  79 /// perform extra password change validation
  80     function validation($data, $files) {
  81         global $USER;
  82         $errors = parent::validation($data, $files);
  83
  84         // ignore submitted username
  85         if (!$user = authenticate_user_login($USER->username, $data['password'], true)) {
  86             $errors['password'] = get_string('invalidlogin');
  87             return $errors;
  88         }
  89
  90         if ($data['newpassword1'] <> $data['newpassword2']) {
  91             $errors['newpassword1'] = get_string('passwordsdiffer');
  92             $errors['newpassword2'] = get_string('passwordsdiffer');
  93             return $errors;
  94         }
  95
  96         if ($data['password'] == $data['newpassword1']){
  97             $errors['newpassword1'] = get_string('mustchangepassword');
  98             $errors['newpassword2'] = get_string('mustchangepassword');
  99             return $errors;
 100         }
 101
 102         if (user_is_previously_used_password($USER->id, $data['newpassword1'])) {
 103             $errors['newpassword1'] = get_string('errorpasswordreused', 'core_auth');
 104             $errors['newpassword2'] = get_string('errorpasswordreused', 'core_auth');
 105         }
 106
 107         $errmsg = '';//prevents eclipse warnings
 108         if (!check_password_policy($data['newpassword1'], $errmsg)) {
 109             $errors['newpassword1'] = $errmsg;
 110             $errors['newpassword2'] = $errmsg;
 111             return $errors;
 112         }
 113
 114         return $errors;
 115     }
 116 }