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 require_once('lib.php');
  32
  33 class login_change_password_form extends moodleform {
  34
  35     function definition() {
  36         global $USER, $CFG;
  37
  38         $mform = $this->_form;
  39         $mform->setDisableShortforms(true);
  40
  41         $mform->addElement('header', 'changepassword', get_string('changepassword'), '');
  42
  43         // visible elements
  44         $mform->addElement('static', 'username', get_string('username'), $USER->username);
  45
  46         $policies = array();
  47         if (!empty($CFG->passwordpolicy)) {
  48             $policies[] = print_password_policy();
  49         }
  50         if (!empty($CFG->passwordreuselimit) and $CFG->passwordreuselimit > 0) {
  51             $policies[] = get_string('informminpasswordreuselimit', 'auth', $CFG->passwordreuselimit);
  52         }
  53         if ($policies) {
  54             $mform->addElement('static', 'passwordpolicyinfo', '', implode('<br />', $policies));
  55         }
  56         $purpose = user_edit_map_field_purpose($USER->id, 'password');
  57         $mform->addElement('password', 'password', get_string('oldpassword'), $purpose);
  58         $mform->addRule('password', get_string('required'), 'required', null, 'client');
  59         $mform->setType('password', PARAM_RAW);
  60
  61         $mform->addElement('password', 'newpassword1', get_string('newpassword'));
  62         $mform->addRule('newpassword1', get_string('required'), 'required', null, 'client');
  63         $mform->setType('newpassword1', PARAM_RAW);
  64
  65         $mform->addElement('password', 'newpassword2', get_string('newpassword').' ('.get_String('again').')');
  66         $mform->addRule('newpassword2', get_string('required'), 'required', null, 'client');
  67         $mform->setType('newpassword2', PARAM_RAW);
  68
  69         if (empty($CFG->passwordchangetokendeletion) and !empty(webservice::get_active_tokens($USER->id))) {
  70             $mform->addElement('advcheckbox', 'signoutofotherservices', get_string('signoutofotherservices'));
  71             $mform->addHelpButton('signoutofotherservices', 'signoutofotherservices');
  72             $mform->setDefault('signoutofotherservices', 1);
  73         }
  74
  75         // hidden optional params
  76         $mform->addElement('hidden', 'id', 0);
  77         $mform->setType('id', PARAM_INT);
  78
  79         // Hook for plugins to extend form definition.
  80         core_login_extend_change_password_form($mform, $USER);
  81
  82         // buttons
  83         if (get_user_preferences('auth_forcepasswordchange')) {
  84             $this->add_action_buttons(false);
  85         } else {
  86             $this->add_action_buttons(true);
  87         }
  88     }
  89
  90 /// perform extra password change validation
  91     function validation($data, $files) {
  92         global $USER;
  93         $errors = parent::validation($data, $files);
  94         $reason = null;
  95
  96         // Extend validation for any form extensions from plugins.
  97         $errors = array_merge($errors, core_login_validate_extend_change_password_form($data, $USER));
  98
  99         // ignore submitted username
 100         if (!$user = authenticate_user_login($USER->username, $data['password'], true, $reason, false)) {
 101             $errors['password'] = get_string('invalidlogin');
 102             return $errors;
 103         }
 104
 105         if ($data['newpassword1'] <> $data['newpassword2']) {
 106             $errors['newpassword1'] = get_string('passwordsdiffer');
 107             $errors['newpassword2'] = get_string('passwordsdiffer');
 108             return $errors;
 109         }
 110
 111         if ($data['password'] == $data['newpassword1']){
 112             $errors['newpassword1'] = get_string('mustchangepassword');
 113             $errors['newpassword2'] = get_string('mustchangepassword');
 114             return $errors;
 115         }
 116
 117         if (user_is_previously_used_password($USER->id, $data['newpassword1'])) {
 118             $errors['newpassword1'] = get_string('errorpasswordreused', 'core_auth');
 119             $errors['newpassword2'] = get_string('errorpasswordreused', 'core_auth');
 120         }
 121
 122         $errmsg = '';//prevents eclipse warnings
 123         if (!check_password_policy($data['newpassword1'], $errmsg, $USER)) {
 124             $errors['newpassword1'] = $errmsg;
 125             $errors['newpassword2'] = $errmsg;
 126             return $errors;
 127         }
 128
 129         return $errors;
 130     }
 131 }