login/set_password_form.php

   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  * Set password form definition.
  19  *
  20  * @package    core
  21  * @subpackage auth
  22  * @copyright  2006 Petr Skoda {@link http://skodak.org}
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 defined('MOODLE_INTERNAL') || die();
  27
  28 require_once($CFG->libdir.'/formslib.php');
  29 require_once($CFG->dirroot.'/user/lib.php');
  30
  31 /**
  32  * Set forgotten password form definition.
  33  *
  34  * @package    core
  35  * @subpackage auth
  36  * @copyright  2006 Petr Skoda {@link http://skodak.org}
  37  * @copyright  2013 Peter Bulmer
  38  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  39  */
  40 class login_set_password_form extends moodleform {
  41
  42     /**
  43      * Define the set password form.
  44      */
  45     public function definition() {
  46         global $CFG;
  47         // Prepare a string showing whether the site wants login password autocompletion to be available to user.
  48         if (empty($CFG->loginpasswordautocomplete)) {
  49             $autocomplete = 'autocomplete="on"';
  50         } else {
  51             $autocomplete = '';
  52         }
  53
  54         $mform = $this->_form;
  55         $mform->setDisableShortforms(true);
  56         $mform->addElement('header', 'setpassword', get_string('setpassword'), '');
  57
  58         // Include the username in the form so browsers will recognise that a password is being set.
  59         $mform->addElement('text', 'username', '', 'style="display: none;" ' . $autocomplete);
  60         $mform->setType('username', PARAM_RAW);
  61         // Token gives authority to change password.
  62         $mform->addElement('hidden', 'token', '');
  63         $mform->setType('token', PARAM_ALPHANUM);
  64
  65         // Visible elements.
  66         $mform->addElement('static', 'username2', get_string('username'));
  67
  68         $policies = array();
  69         if (!empty($CFG->passwordpolicy)) {
  70             $policies[] = print_password_policy();
  71         }
  72         if (!empty($CFG->passwordreuselimit) and $CFG->passwordreuselimit > 0) {
  73             $policies[] = get_string('informminpasswordreuselimit', 'auth', $CFG->passwordreuselimit);
  74         }
  75         if ($policies) {
  76             $mform->addElement('static', 'passwordpolicyinfo', '', implode('<br />', $policies));
  77         }
  78         $mform->addElement('password', 'password', get_string('newpassword'), $autocomplete);
  79         $mform->addRule('password', get_string('required'), 'required', null, 'client');
  80         $mform->setType('password', PARAM_RAW);
  81
  82         $strpasswordagain = get_string('newpassword') . ' (' . get_string('again') . ')';
  83         $mform->addElement('password', 'password2', $strpasswordagain, $autocomplete);
  84         $mform->addRule('password2', get_string('required'), 'required', null, 'client');
  85         $mform->setType('password2', PARAM_RAW);
  86
  87         $this->add_action_buttons(true);
  88     }
  89
  90     /**
  91      * Perform extra password change validation.
  92      * @param array $data submitted form fields.
  93      * @param array $files submitted with the form.
  94      * @return array errors occuring during validation.
  95      */
  96     public function validation($data, $files) {
  97         $user = $this->_customdata;
  98
  99         $errors = parent::validation($data, $files);
 100
 101         // Ignore submitted username.
 102         if ($data['password'] !== $data['password2']) {
 103             $errors['password'] = get_string('passwordsdiffer');
 104             $errors['password2'] = get_string('passwordsdiffer');
 105             return $errors;
 106         }
 107
 108         $errmsg = ''; // Prevents eclipse warnings.
 109         if (!check_password_policy($data['password'], $errmsg)) {
 110             $errors['password'] = $errmsg;
 111             $errors['password2'] = $errmsg;
 112             return $errors;
 113         }
 114
 115         if (user_is_previously_used_password($user->id, $data['password'])) {
 116             $errors['password'] = get_string('errorpasswordreused', 'core_auth');
 117             $errors['password2'] = get_string('errorpasswordreused', 'core_auth');
 118         }
 119
 120         return $errors;
 121     }
 122 }