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($CFG->libdir.'/formslib.php');
  30 require_once($CFG->dirroot.'/user/lib.php');
  31
  32 class login_change_password_form extends moodleform {
  33
  34     function definition() {
  35         global $USER, $CFG;
  36
  37         $mform = $this->_form;
  38         $mform->setDisableShortforms(true);
  39
  40         $mform->addElement('header', 'changepassword', get_string('changepassword'), '');
  41
  42         // visible elements
  43         $mform->addElement('static', 'username', get_string('username'), $USER->username);
  44
  45         $policies = array();
  46         if (!empty($CFG->passwordpolicy)) {
  47             $policies[] = print_password_policy();
  48         }
  49         if (!empty($CFG->passwordreuselimit) and $CFG->passwordreuselimit > 0) {
  50             $policies[] = get_string('informminpasswordreuselimit', 'auth', $CFG->passwordreuselimit);
  51         }
  52         if ($policies) {
  53             $mform->addElement('static', 'passwordpolicyinfo', '', implode('<br />', $policies));
  54         }
  55         $purpose = user_edit_map_field_purpose($USER->id, 'password');
  56         $mform->addElement('password', 'password', get_string('oldpassword'), $purpose);
  57         $mform->addRule('password', get_string('required'), 'required', null, 'client');
  58         $mform->setType('password', PARAM_RAW);
  59
  60         $mform->addElement('password', 'newpassword1', get_string('newpassword'));
  61         $mform->addRule('newpassword1', get_string('required'), 'required', null, 'client');
  62         $mform->setType('newpassword1', PARAM_RAW);
  63
  64         $mform->addElement('password', 'newpassword2', get_string('newpassword').' ('.get_String('again').')');
  65         $mform->addRule('newpassword2', get_string('required'), 'required', null, 'client');
  66         $mform->setType('newpassword2', PARAM_RAW);
  67
  68         if (empty($CFG->passwordchangetokendeletion) and !empty(webservice::get_active_tokens($USER->id))) {
  69             $mform->addElement('advcheckbox', 'signoutofotherservices', get_string('signoutofotherservices'));
  70             $mform->addHelpButton('signoutofotherservices', 'signoutofotherservices');
  71             $mform->setDefault('signoutofotherservices', 1);
  72         }
  73
  74         // hidden optional params
  75         $mform->addElement('hidden', 'id', 0);
  76         $mform->setType('id', PARAM_INT);
  77
  78         // buttons
  79         if (get_user_preferences('auth_forcepasswordchange')) {
  80             $this->add_action_buttons(false);
  81         } else {
  82             $this->add_action_buttons(true);
  83         }
  84     }
  85
  86 /// perform extra password change validation
  87     function validation($data, $files) {
  88         global $USER;
  89         $errors = parent::validation($data, $files);
  90         $reason = null;
  91
  92         // ignore submitted username
  93         if (!$user = authenticate_user_login($USER->username, $data['password'], true, $reason, false)) {
  94             $errors['password'] = get_string('invalidlogin');
  95             return $errors;
  96         }
  97
  98         if ($data['newpassword1'] <> $data['newpassword2']) {
  99             $errors['newpassword1'] = get_string('passwordsdiffer');
 100             $errors['newpassword2'] = get_string('passwordsdiffer');
 101             return $errors;
 102         }
 103
 104         if ($data['password'] == $data['newpassword1']){
 105             $errors['newpassword1'] = get_string('mustchangepassword');
 106             $errors['newpassword2'] = get_string('mustchangepassword');
 107             return $errors;
 108         }
 109
 110         if (user_is_previously_used_password($USER->id, $data['newpassword1'])) {
 111             $errors['newpassword1'] = get_string('errorpasswordreused', 'core_auth');
 112             $errors['newpassword2'] = get_string('errorpasswordreused', 'core_auth');
 113         }
 114
 115         $errmsg = '';//prevents eclipse warnings
 116         if (!check_password_policy($data['newpassword1'], $errmsg)) {
 117             $errors['newpassword1'] = $errmsg;
 118             $errors['newpassword2'] = $errmsg;
 119             return $errors;
 120         }
 121
 122         return $errors;
 123     }
 124 }