login/verify_age_location.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  * Verify age and location (digital minor check).
  19  *
  20  * @package    core
  21  * @subpackage auth
  22  * @copyright  2018 Mihail Geshoski <mihail@moodle.com>
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 require('../config.php');
  27 require_once($CFG->libdir . '/authlib.php');
  28
  29 $authplugin = signup_is_enabled();
  30
  31 if (!$authplugin || !\core_auth\digital_consent::is_age_digital_consent_verification_enabled()) {
  32     // Redirect user if signup or digital age of consent verification is disabled.
  33     redirect(new moodle_url('/'), get_string('verifyagedigitalconsentnotpossible', 'error'));
  34 }
  35
  36 $PAGE->set_context(context_system::instance());
  37 $PAGE->set_url(new moodle_url('/login/verify_age_location.php'));
  38
  39 if (isloggedin() and !isguestuser()) {
  40     // Prevent signing up when already logged in.
  41     redirect(new moodle_url('/'), get_string('cannotsignup', 'error', fullname($USER)));
  42 }
  43
  44 $cache = cache::make('core', 'presignup');
  45 $isminor = $cache->get('isminor');
  46 if ($isminor === 'yes') {
  47     // The user that attempts to sign up is a digital minor.
  48     redirect(new moodle_url('/login/digital_minor.php'));
  49 } else if ($isminor === 'no') {
  50     // The user that attempts to sign up has already verified that they are not a digital minor.
  51     redirect(new moodle_url('/login/signup.php'));
  52 }
  53
  54 $PAGE->navbar->add(get_string('login'));
  55 $PAGE->navbar->add(get_string('agelocationverification'));
  56
  57 $PAGE->set_pagelayout('login');
  58 $PAGE->set_title(get_string('agelocationverification'));
  59 $sitename = format_string($SITE->fullname);
  60 $PAGE->set_heading($sitename);
  61
  62 $mform = new \core_auth\form\verify_age_location_form();
  63 $page = new \core_auth\output\verify_age_location_page($mform);
  64
  65 if ($mform->is_cancelled()) {
  66     redirect(new moodle_url('/login/index.php'));
  67 } else if ($data = $mform->get_data()) {
  68     try {
  69         $isminor = \core_auth\digital_consent::is_minor($data->age, $data->country);
  70         cache::make('core', 'presignup')->set('isminor', $isminor ? 'yes' : 'no');
  71         if ($isminor) {
  72             redirect(new moodle_url('/login/digital_minor.php'));
  73         } else {
  74             redirect(new moodle_url('/login/signup.php'));
  75         }
  76     } catch (moodle_exception $e) {
  77         // Display a user-friendly error message.
  78         $errormessage = get_string('couldnotverifyagedigitalconsent', 'error');
  79         $page = new \core_auth\output\verify_age_location_page($mform, $errormessage);
  80         echo $OUTPUT->header();
  81         echo $OUTPUT->render($page);
  82         echo $OUTPUT->footer();
  83     }
  84 } else {
  85     echo $OUTPUT->header();
  86     echo $OUTPUT->render($page);
  87     echo $OUTPUT->footer();
  88 }