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106 lines
3.7 KiB
106 lines
3.7 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Contains helper class for digital consent.
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*
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* @package core_auth
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* @copyright 2018 Mihail Geshoski <mihail@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace core_auth;
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defined('MOODLE_INTERNAL') || die();
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/**
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* Helper class for digital consent.
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*
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* @copyright 2018 Mihail Geshoski <mihail@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class digital_consent {
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/**
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* Returns true if age and location verification is enabled in the site.
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*
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* @return bool
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*/
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public static function is_age_digital_consent_verification_enabled() {
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global $CFG;
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return !empty($CFG->agedigitalconsentverification);
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}
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/**
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* Checks if a user is a digital minor.
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*
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* @param int $age
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* @param string $country The country code (ISO 3166-2)
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* @return bool
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*/
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public static function is_minor($age, $country) {
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global $CFG;
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$ageconsentmap = $CFG->agedigitalconsentmap;
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$agedigitalconsentmap = self::parse_age_digital_consent_map($ageconsentmap);
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return array_key_exists($country, $agedigitalconsentmap) ?
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$age < $agedigitalconsentmap[$country] : $age < $agedigitalconsentmap['*'];
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}
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/**
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* Parse the agedigitalconsentmap setting into an array.
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*
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* @param string $ageconsentmap The value of the agedigitalconsentmap setting
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* @return array $ageconsentmapparsed
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*/
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public static function parse_age_digital_consent_map($ageconsentmap) {
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$ageconsentmapparsed = array();
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$countries = get_string_manager()->get_list_of_countries(true);
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$isdefaultvaluepresent = false;
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$lines = preg_split('/\r|\n/', $ageconsentmap, -1, PREG_SPLIT_NO_EMPTY);
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foreach ($lines as $line) {
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$arr = explode(",", $line);
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// Handle if there is more or less than one comma separator.
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if (count($arr) != 2) {
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throw new \moodle_exception('agedigitalconsentmapinvalidcomma', 'error', '', $line);
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}
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$country = trim($arr[0]);
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$age = trim($arr[1]);
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// Check if default.
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if ($country == "*") {
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$isdefaultvaluepresent = true;
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}
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// Handle if the presented value for country is not valid.
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if ($country !== "*" && !array_key_exists($country, $countries)) {
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throw new \moodle_exception('agedigitalconsentmapinvalidcountry', 'error', '', $country);
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}
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// Handle if the presented value for age is not valid.
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if (!is_numeric($age)) {
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throw new \moodle_exception('agedigitalconsentmapinvalidage', 'error', '', $age);
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}
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$ageconsentmapparsed[$country] = $age;
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}
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// Handle if a default value does not exist.
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if (!$isdefaultvaluepresent) {
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throw new \moodle_exception('agedigitalconsentmapinvaliddefault');
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}
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return $ageconsentmapparsed;
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}
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}
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