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
  32 class login_signup_form extends moodleform {
  33     function definition() {
  34         global $USER, $CFG;
  35
  36         $mform = $this->_form;
  37
  38         $mform->addElement('header', '', get_string('createuserandpass'), '');
  39
  40
  41         $mform->addElement('text', 'username', get_string('username'), 'maxlength="100" size="12"');
  42         $mform->setType('username', PARAM_NOTAGS);
  43         $mform->addRule('username', get_string('missingusername'), 'required', null, 'server');
  44
  45         if (!empty($CFG->passwordpolicy)){
  46             $mform->addElement('static', 'passwordpolicyinfo', '', print_password_policy());
  47         }
  48         $mform->addElement('passwordunmask', 'password', get_string('password'), 'maxlength="32" size="12"');
  49         $mform->setType('password', PARAM_RAW);
  50         $mform->addRule('password', get_string('missingpassword'), 'required', null, 'server');
  51
  52         $mform->addElement('header', '', get_string('supplyinfo'),'');
  53
  54         $mform->addElement('text', 'email', get_string('email'), 'maxlength="100" size="25"');
  55         $mform->setType('email', PARAM_NOTAGS);
  56         $mform->addRule('email', get_string('missingemail'), 'required', null, 'server');
  57
  58         $mform->addElement('text', 'email2', get_string('emailagain'), 'maxlength="100" size="25"');
  59         $mform->setType('email2', PARAM_NOTAGS);
  60         $mform->addRule('email2', get_string('missingemail'), 'required', null, 'server');
  61
  62         $nameordercheck = new object();
  63         $nameordercheck->firstname = 'a';
  64         $nameordercheck->lastname  = 'b';
  65         if (fullname($nameordercheck) == 'b a' ) {  // See MDL-4325
  66             $mform->addElement('text', 'lastname',  get_string('lastname'),  'maxlength="100" size="30"');
  67             $mform->addElement('text', 'firstname', get_string('firstname'), 'maxlength="100" size="30"');
  68         } else {
  69             $mform->addElement('text', 'firstname', get_string('firstname'), 'maxlength="100" size="30"');
  70             $mform->addElement('text', 'lastname',  get_string('lastname'),  'maxlength="100" size="30"');
  71         }
  72
  73         $mform->setType('firstname', PARAM_TEXT);
  74         $mform->addRule('firstname', get_string('missingfirstname'), 'required', null, 'server');
  75
  76         $mform->setType('lastname', PARAM_TEXT);
  77         $mform->addRule('lastname', get_string('missinglastname'), 'required', null, 'server');
  78
  79         $mform->addElement('text', 'city', get_string('city'), 'maxlength="120" size="20"');
  80         $mform->setType('city', PARAM_TEXT);
  81         $mform->addRule('city', get_string('missingcity'), 'required', null, 'server');
  82
  83         $country = get_string_manager()->get_list_of_countries();
  84         $default_country[''] = get_string('selectacountry');
  85         $country = array_merge($default_country, $country);
  86         $mform->addElement('select', 'country', get_string('country'), $country);
  87         $mform->addRule('country', get_string('missingcountry'), 'required', null, 'server');
  88
  89         if( !empty($CFG->country) ){
  90             $mform->setDefault('country', $CFG->country);
  91         }else{
  92             $mform->setDefault('country', '');
  93         }
  94
  95         if ($this->signup_captcha_enabled()) {
  96             $mform->addElement('recaptcha', 'recaptcha_element', get_string('recaptcha', 'auth'), array('https' => $CFG->loginhttps));
  97             $mform->addHelpButton('recaptcha_element', 'recaptcha', 'auth');
  98         }
  99
 100         profile_signup_fields($mform);
 101
 102         if (!empty($CFG->sitepolicy)) {
 103             $mform->addElement('header', '', get_string('policyagreement'), '');
 104             $mform->addElement('static', 'policylink', '', '<a href="'.$CFG->sitepolicy.'" onclick="this.target=\'_blank\'">'.get_String('policyagreementclick').'</a>');
 105             $mform->addElement('checkbox', 'policyagreed', get_string('policyaccept'));
 106             $mform->addRule('policyagreed', get_string('policyagree'), 'required', null, 'server');
 107         }
 108
 109         // buttons
 110         $this->add_action_buttons(true, get_string('createaccount'));
 111
 112     }
 113
 114     function definition_after_data(){
 115         $mform = $this->_form;
 116         $mform->applyFilter('username', 'trim');
 117     }
 118
 119     function validation($data, $files) {
 120         global $CFG, $DB;
 121         $errors = parent::validation($data, $files);
 122
 123         $authplugin = get_auth_plugin($CFG->registerauth);
 124
 125         if ($DB->record_exists('user', array('username'=>$data['username'], 'mnethostid'=>$CFG->mnet_localhost_id))) {
 126             $errors['username'] = get_string('usernameexists');
 127         } else {
 128             //check allowed characters
 129             if ($data['username'] !== moodle_strtolower($data['username'])) {
 130                 $errors['username'] = get_string('usernamelowercase');
 131             } else {
 132                 if ($data['username'] !== clean_param($data['username'], PARAM_USERNAME)) {
 133                     $errors['username'] = get_string('invalidusername');
 134                 }
 135
 136             }
 137         }
 138
 139         //check if user exists in external db
 140         //TODO: maybe we should check all enabled plugins instead
 141         if ($authplugin->user_exists($data['username'])) {
 142             $errors['username'] = get_string('usernameexists');
 143         }
 144
 145
 146         if (! validate_email($data['email'])) {
 147             $errors['email'] = get_string('invalidemail');
 148
 149         } else if ($DB->record_exists('user', array('email'=>$data['email']))) {
 150             $errors['email'] = get_string('emailexists').' <a href="forgot_password.php">'.get_string('newpassword').'?</a>';
 151         }
 152         if (empty($data['email2'])) {
 153             $errors['email2'] = get_string('missingemail');
 154
 155         } else if ($data['email2'] != $data['email']) {
 156             $errors['email2'] = get_string('invalidemail');
 157         }
 158         if (!isset($errors['email'])) {
 159             if ($err = email_is_not_allowed($data['email'])) {
 160                 $errors['email'] = $err;
 161             }
 162
 163         }
 164
 165         $errmsg = '';
 166         if (!check_password_policy($data['password'], $errmsg)) {
 167             $errors['password'] = $errmsg;
 168         }
 169
 170         if ($this->signup_captcha_enabled()) {
 171             $recaptcha_element = $this->_form->getElement('recaptcha_element');
 172             if (!empty($this->_form->_submitValues['recaptcha_challenge_field'])) {
 173                 $challenge_field = $this->_form->_submitValues['recaptcha_challenge_field'];
 174                 $response_field = $this->_form->_submitValues['recaptcha_response_field'];
 175                 if (true !== ($result = $recaptcha_element->verify($challenge_field, $response_field))) {
 176                     $errors['recaptcha'] = $result;
 177                 }
 178             } else {
 179                 $errors['recaptcha'] = get_string('missingrecaptchachallengefield');
 180             }
 181         }
 182
 183         return $errors;
 184
 185     }
 186
 187     /**
 188      * Returns whether or not the captcha element is enabled, and the admin settings fulfil its requirements.
 189      * @return bool
 190      */
 191     function signup_captcha_enabled() {
 192         global $CFG;
 193         return !empty($CFG->recaptchapublickey) && !empty($CFG->recaptchaprivatekey) && get_config('auth/email', 'recaptcha');
 194     }
 195
 196 }