register.php

<?php
namespace Bitrix\Landing\Domain;
 
use \Bitrix\Landing\Manager;
use \Bitrix\Main\Web\HttpClient;
 
class Register
{
    const B24_SERVICE_DETECT_IP = 'https://ip.bitrix24.site/getipforzone/?bx24_zone=';
 
    const B24_SERVICE_DETECT_DOMAIN = 'https://ip.bitrix24.site/getdomainstatus/?bx24_site_domain=';
 
    const B24_DEFAULT_DNS_IP = '52.59.124.117';
 
    const B24_DEFAULT_DNS_CNAME = 'lb.bitrix24.site.';
 
    public static function getInstance(): ?Provider
    {
        return new Provider\Bitrix24();
    }
 
    protected static function getINA(?string $tld = null): string
    {
        $http = new HttpClient;
        $zone = ($tld == 'kz') ? 'kz' : Manager::getZone();
        $ip = $http->get(self::B24_SERVICE_DETECT_IP . $zone);
        $ip = \CUtil::jsObjectToPhp($ip);
 
        return isset($ip['IP']) ? $ip['IP'] : self::B24_DEFAULT_DNS_IP;
    }
 
    public static function getDNSRecords(?string $tld = null): array
    {
        static $result = null;
 
        if ($result !== null)
        {
            return $result;
        }
 
        $result = [
            'INA' => self::getINA($tld),
            'CNAME' => self::B24_DEFAULT_DNS_CNAME
        ];
 
        return $result;
    }
 
    public static function isDomainActive(string $domainName): bool
    {
        $http = new HttpClient;
        $status = $http->get(self::B24_SERVICE_DETECT_DOMAIN . $domainName);
        $status = \CUtil::jsObjectToPhp($status);
        // protect from bad answer
        if (!isset($status['status']))
        {
            return true;
        }
        return $status['status'] === 'ready';
    }
}