login/signup_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  * User sign-up form.
  20  *
  21  * @package    core
  22  * @subpackage auth
  23  * @copyright  1999 onwards Martin Dougiamas  http://dougiamas.com
  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/profile/lib.php');
  31 require_once($CFG->dirroot . '/user/editlib.php');
  32
  33 class login_signup_form extends moodleform {
  34     function definition() {
  35         global $USER, $CFG;
  36
  37         $mform = $this->_form;
  38
  39         $mform->addElement('header', 'createuserandpass', get_string('createuserandpass'), '');
  40
  41
  42         $mform->addElement('text', 'username', get_string('username'), 'maxlength="100" size="12"');
  43         $mform->setType('username', PARAM_NOTAGS);
  44         $mform->addRule('username', get_string('missingusername'), 'required', null, 'server');
  45
  46         if (!empty($CFG->passwordpolicy)){
  47             $mform->addElement('static', 'passwordpolicyinfo', '', print_password_policy());
  48         }
  49         $mform->addElement('passwordunmask', 'password', get_string('password'), 'maxlength="32" size="12"');
  50         $mform->setType('password', PARAM_RAW);
  51         $mform->addRule('password', get_string('missingpassword'), 'required', null, 'server');
  52
  53         $mform->addElement('header', 'supplyinfo', get_string('supplyinfo'),'');
  54
  55         $mform->addElement('text', 'email', get_string('email'), 'maxlength="100" size="25"');
  56         $mform->setType('email', PARAM_RAW_TRIMMED);
  57         $mform->addRule('email', get_string('missingemail'), 'required', null, 'server');
  58
  59         $mform->addElement('text', 'email2', get_string('emailagain'), 'maxlength="100" size="25"');
  60         $mform->setType('email2', PARAM_RAW_TRIMMED);
  61         $mform->addRule('email2', get_string('missingemail'), 'required', null, 'server');
  62
  63         $namefields = useredit_get_required_name_fields();
  64         foreach ($namefields as $field) {
  65             $mform->addElement('text', $field, get_string($field), 'maxlength="100" size="30"');
  66             $mform->setType($field, PARAM_NOTAGS);
  67             $stringid = 'missing' . $field;
  68             if (!get_string_manager()->string_exists($stringid, 'moodle')) {
  69                 $stringid = 'required';
  70             }
  71             $mform->addRule($field, get_string($stringid), 'required', null, 'server');
  72         }
  73
  74         $mform->addElement('text', 'city', get_string('city'), 'maxlength="120" size="20"');
  75         $mform->setType('city', PARAM_TEXT);
  76         if (!empty($CFG->defaultcity)) {
  77             $mform->setDefault('city', $CFG->defaultcity);
  78         }
  79
  80         $country = get_string_manager()->get_list_of_countries();
  81         $default_country[''] = get_string('selectacountry');
  82         $country = array_merge($default_country, $country);
  83         $mform->addElement('select', 'country', get_string('country'), $country);
  84
  85         if( !empty($CFG->country) ){
  86             $mform->setDefault('country', $CFG->country);
  87         }else{
  88             $mform->setDefault('country', '');
  89         }
  90
  91         profile_signup_fields($mform);
  92
  93         if ($this->signup_captcha_enabled()) {
  94             $mform->addElement('recaptcha', 'recaptcha_element', get_string('security_question', 'auth'), array('https' => $CFG->loginhttps));
  95             $mform->addHelpButton('recaptcha_element', 'recaptcha', 'auth');
  96             $mform->closeHeaderBefore('recaptcha_element');
  97         }
  98
  99         if (!empty($CFG->sitepolicy)) {
 100             $mform->addElement('header', 'policyagreement', get_string('policyagreement'), '');
 101             $mform->setExpanded('policyagreement');
 102             $mform->addElement('static', 'policylink', '', '<a href="'.$CFG->sitepolicy.'" onclick="this.target=\'_blank\'">'.get_String('policyagreementclick').'</a>');
 103             $mform->addElement('checkbox', 'policyagreed', get_string('policyaccept'));
 104             $mform->addRule('policyagreed', get_string('policyagree'), 'required', null, 'server');
 105         }
 106
 107         // buttons
 108         $this->add_action_buttons(true, get_string('createaccount'));
 109
 110     }
 111
 112     function definition_after_data(){
 113         $mform = $this->_form;
 114         $mform->applyFilter('username', 'trim');
 115
 116         // Trim required name fields.
 117         foreach (useredit_get_required_name_fields() as $field) {
 118             $mform->applyFilter($field, 'trim');
 119         }
 120     }
 121
 122     function validation($data, $files) {
 123         global $CFG, $DB;
 124         $errors = parent::validation($data, $files);
 125
 126         $authplugin = get_auth_plugin($CFG->registerauth);
 127
 128         if ($DB->record_exists('user', array('username'=>$data['username'], 'mnethostid'=>$CFG->mnet_localhost_id))) {
 129             $errors['username'] = get_string('usernameexists');
 130         } else {
 131             //check allowed characters
 132             if ($data['username'] !== core_text::strtolower($data['username'])) {
 133                 $errors['username'] = get_string('usernamelowercase');
 134             } else {
 135                 if ($data['username'] !== clean_param($data['username'], PARAM_USERNAME)) {
 136                     $errors['username'] = get_string('invalidusername');
 137                 }
 138
 139             }
 140         }
 141
 142         //check if user exists in external db
 143         //TODO: maybe we should check all enabled plugins instead
 144         if ($authplugin->user_exists($data['username'])) {
 145             $errors['username'] = get_string('usernameexists');
 146         }
 147
 148
 149         if (! validate_email($data['email'])) {
 150             $errors['email'] = get_string('invalidemail');
 151
 152         } else if ($DB->record_exists('user', array('email'=>$data['email']))) {
 153             $errors['email'] = get_string('emailexists').' <a href="forgot_password.php">'.get_string('newpassword').'?</a>';
 154         }
 155         if (empty($data['email2'])) {
 156             $errors['email2'] = get_string('missingemail');
 157
 158         } else if ($data['email2'] != $data['email']) {
 159             $errors['email2'] = get_string('invalidemail');
 160         }
 161         if (!isset($errors['email'])) {
 162             if ($err = email_is_not_allowed($data['email'])) {
 163                 $errors['email'] = $err;
 164             }
 165
 166         }
 167
 168         $errmsg = '';
 169         if (!check_password_policy($data['password'], $errmsg)) {
 170             $errors['password'] = $errmsg;
 171         }
 172
 173         if ($this->signup_captcha_enabled()) {
 174             $recaptcha_element = $this->_form->getElement('recaptcha_element');
 175             if (!empty($this->_form->_submitValues['recaptcha_challenge_field'])) {
 176                 $challenge_field = $this->_form->_submitValues['recaptcha_challenge_field'];
 177                 $response_field = $this->_form->_submitValues['recaptcha_response_field'];
 178                 if (true !== ($result = $recaptcha_element->verify($challenge_field, $response_field))) {
 179                     $errors['recaptcha'] = $result;
 180                 }
 181             } else {
 182                 $errors['recaptcha'] = get_string('missingrecaptchachallengefield');
 183             }
 184         }
 185         // Validate customisable profile fields. (profile_validation expects an object as the parameter with userid set)
 186         $dataobject = (object)$data;
 187         $dataobject->id = 0;
 188         $errors += profile_validation($dataobject, $files);
 189
 190         return $errors;
 191
 192     }
 193
 194     /**
 195      * Returns whether or not the captcha element is enabled, and the admin settings fulfil its requirements.
 196      * @return bool
 197      */
 198     function signup_captcha_enabled() {
 199         global $CFG;
 200         return !empty($CFG->recaptchapublickey) && !empty($CFG->recaptchaprivatekey) && get_config('auth/email', 'recaptcha');
 201     }
 202
 203 }