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<?php
/**
* @package Joomla
* @subpackage Membership Pro
* @author Tuan Pham Ngoc
* @copyright Copyright (C) 2012 - 2026 Ossolution Team
* @license GNU/GPL, see LICENSE.php
*/
use Joomla\CMS\Factory;
use Joomla\CMS\Http\HttpFactory;
class OSMembershipHelperEuvat
{
public static $europeanUnionVATInformation = [
// Core member states
'BE' => ['Belgium', 'BE', 21],
'BG' => ['Bulgaria', 'BG', 20],
'CZ' => ['Czech Republic', 'CZ', 21],
'DK' => ['Denmark', 'DK', 25],
'DE' => ['Germany', 'DE', 19],
'EE' => ['Estonia', 'EE', 22],
'GR' => ['Greece', 'EL', 24],
'ES' => ['Spain', 'ES', 21],
'FR' => ['France', 'FR', 20],
'HR' => ['Croatia', 'HR', 25],
'IE' => ['Ireland', 'IE', 23],
'IT' => ['Italy', 'IT', 22],
'CY' => ['Cyprus', 'CY', 19],
'LV' => ['Latvia', 'LV', 21],
'LT' => ['Lithuania', 'LT', 21],
'LU' => ['Luxembourg', 'LU', 17],
'HU' => ['Hungary', 'HU', 27],
'MT' => ['Malta', 'MT', 18],
'NL' => ['Netherlands', 'NL', 21],
'AT' => ['Austria', 'AT', 20],
'PL' => ['Poland', 'PL', 23],
'PT' => ['Portugal', 'PT', 23],
'RO' => ['Romania', 'RO', 19],
'SI' => ['Slovenia', 'SI', 22],
'SK' => ['Slovakia (Slovak Republic)', 'SK', 20],
'FI' => ['Finland', 'FI', 24],
'SE' => ['Sweden', 'SE', 25],
// Special cases of countries which belong to a core member state for VAT calculation
'MC' => ['Monaco', 'FR', 20], // Monaco -> France
'IM' => ['Isle of Man', 'GB', 20], // Isle of Man -> Great Britain
];
/**
* Method to check to see whether the given country belongs to EU
*
* @param $countryCode
*
* @return bool
*/
public static function isEUCountry($countryCode)
{
$countryCode = strtoupper($countryCode);
// Special case for Greece
if ($countryCode == 'EL')
{
return true;
}
return array_key_exists($countryCode, self::$europeanUnionVATInformation);
}
/**
* Get the tax rate of the given EU Country
*
* @param $countryCode
*
* @return float
*/
public static function getEUCountryTaxRate($countryCode)
{
$countryCode = strtoupper($countryCode);
if (isset(self::$europeanUnionVATInformation[$countryCode]))
{
return self::$europeanUnionVATInformation[$countryCode][2];
}
return 0;
}
/**
* Check if the given VAT Number is in valid format or not
*
* @param $id
*
* @return bool
*/
public static function preCheckVatNumber($id)
{
$id = strtoupper($id);
$id = preg_replace('/[ -,.]/', '', $id);
if (strlen($id) < 8)
{
return false;
}
$country = substr($id, 0, 2);
switch ($country)
{
case 'AT': // AUSTRIA
$isValid = (bool) preg_match('/^(AT)U(\d{8})$/', $id);
break;
case 'BE': // BELGIUM
$isValid = (bool) preg_match('/(BE)(0?\d{9})$/', $id);
break;
case 'BG': // BULGARIA
$isValid = (bool) preg_match('/(BG)(\d{9,10})$/', $id);
break;
case 'CHE': // Switzerland
$isValid = (bool) preg_match('/(CHE)(\d{9})(MWST)?$/', $id);
break;
case 'CY': // CYPRUS
$isValid = (bool) preg_match('/^(CY)(\d{8}[A-Z])$/', $id);
break;
case 'CZ': // CZECH REPUBLIC
$isValid = (bool) preg_match('/^(CZ)(\d{8,10})(\d{3})?$/', $id);
break;
case 'DE': // GERMANY
$isValid = (bool) preg_match('/^(DE)([1-9]\d{8})/', $id);
break;
case 'DK': // DENMARK
$isValid = (bool) preg_match('/^(DK)(\d{8})$/', $id);
break;
case 'EE': // ESTONIA
$isValid = (bool) preg_match('/^(EE)(10\d{7})$/', $id);
break;
case 'EL': // GREECE
$isValid = (bool) preg_match('/^(EL)(\d{9})$/', $id);
break;
case 'ES': // SPAIN
$isValid = (bool) preg_match('/^(ES)([A-Z]\d{8})$/', $id)
|| preg_match('/^(ES)([A-H|N-S|W]\d{7}[A-J])$/', $id)
|| preg_match('/^(ES)([0-9|Y|Z]\d{7}[A-Z])$/', $id)
|| preg_match('/^(ES)([K|L|M|X]\d{7}[A-Z])$/', $id);
break;
case 'EU': // EU type
$isValid = (bool) preg_match('/^(EU)(\d{9})$/', $id);
break;
case 'FI': // FINLAND
$isValid = (bool) preg_match('/^(FI)(\d{8})$/', $id);
break;
case 'FR': // FRANCE
$isValid = (bool) preg_match('/^(FR)(\d{11})$/', $id)
|| preg_match('/^(FR)([(A-H)|(J-N)|(P-Z)]\d{10})$/', $id)
|| preg_match('/^(FR)(\d[(A-H)|(J-N)|(P-Z)]\d{9})$/', $id)
|| preg_match('/^(FR)([(A-H)|(J-N)|(P-Z)]{2}\d{9})$/', $id);
break;
case 'GR': // GREECE
$isValid = (bool) preg_match('/^(GR)(\d{8,9})$/', $id);
break;
case 'HR': // CROATIA
$isValid = (bool) preg_match('/^(HR)(\d{11})$/', $id);
break;
case 'HU': // HUNGARY
$isValid = (bool) preg_match('/^(HU)(\d{8})$/', $id);
break;
case 'IE': // IRELAND
$isValid = (bool) preg_match('/^(IE)(\d{7}[A-W])$/', $id)
|| preg_match('/^(IE)([7-9][A-Z\*\+)]\d{5}[A-W])$/', $id)
|| preg_match('/^(IE)(\d{7}[A-W][AH])$/', $id);
break;
case 'IT': // ITALY
$isValid = (bool) preg_match('/^(IT)(\d{11})$/', $id);
break;
case 'LV': // LATVIA
$isValid = (bool) preg_match('/^(LV)(\d{11})$/', $id);
break;
case 'LT': // LITHUNIA
$isValid = (bool) preg_match('/^(LT)(\d{9}|\d{12})$/', $id);
break;
case 'LU': // LUXEMBOURG
$isValid = (bool) preg_match('/^(LU)(\d{8})$/', $id);
break;
case 'MT': // MALTA
$isValid = (bool) preg_match('/^(MT)([1-9]\d{7})$/', $id);
break;
case 'NL': // NETHERLAND
$isValid = (bool) preg_match('/^(NL)(\d{9})B\d{2}$/', $id);
break;
case 'NO': // NORWAY
$isValid = (bool) preg_match('/^(NO)(\d{9})$/', $id);
break;
case 'PL': // POLAND
$isValid = (bool) preg_match('/^(PL)(\d{10})$/', $id);
break;
case 'PT': // PORTUGAL
$isValid = (bool) preg_match('/^(PT)(\d{9})$/', $id);
break;
case 'RO': // ROMANIA
$isValid = (bool) preg_match('/^(RO)([1-9]\d{1,9})$/', $id);
break;
case 'RS': // SERBIA
$isValid = (bool) preg_match('/^(RS)(\d{9})$/', $id);
break;
case 'SI': // SLOVENIA
$isValid = (bool) preg_match('/^(SI)([1-9]\d{7})$/', $id);
break;
case 'SK': // SLOVAK REPUBLIC
$isValid = (bool) preg_match('/^(SK)([1-9]\d[(2-4)|(6-9)]\d{7})$/', $id);
break;
case 'SE': // SWEDEN
$isValid = (bool) preg_match('/^(SE)(\d{10}01)$/', $id);
break;
default:
$isValid = false;
}
return $isValid;
}
/**
* Validate EU VAT Number
*
* @param $vatNumber
*
* @return ?bool True if valid, False if invalid, Null if could not be validated due to service not available
*/
public static function validateEUVATNumber($vatNumber)
{
// Remove spaces
$vatNumber = preg_replace('/\s+/', '', $vatNumber);
// Check to see if the VAT Number passed is in valid format before calling webservices
if (!self::preCheckVatNumber($vatNumber))
{
return false;
}
// Use web service to validate the VAT number
$countryCode = substr($vatNumber, 0, 2);
$number = substr($vatNumber, 2);
$key = $countryCode . $number;
$session = Factory::getApplication()->getSession();
$validatedVatNumbers = $session->get('osm_validated_eu_vat_numbers');
if ($validatedVatNumbers)
{
$validatedVatNumbers = json_decode($validatedVatNumbers, true);
}
else
{
$validatedVatNumbers = [];
}
if (array_key_exists($key, $validatedVatNumbers))
{
return $validatedVatNumbers[$key];
}
$config = OSMembershipHelper::getConfig();
$ret = null;
if (class_exists('SoapClient') &&
$config->get('vat_number_validation_provider', 'europa') == 'europa')
{
$ret = static::validateUsingEUWebservice($countryCode, $number);
}
if ($ret === null)
{
$ret = static::validateUsingVatComplyAPI($vatNumber);
}
// Only cache the validation rule if we got a valid response from the webservice
if ($ret !== null)
{
$validatedVatNumbers[$key] = $ret;
$session->set('osm_validated_eu_vat_numbers', json_encode($validatedVatNumbers));
}
return $ret;
}
/**
* Validate vat number using EU Webservice
*
* @param string $countryCode
* @param string $number
*
* @return bool|null
*/
protected static function validateUsingEUWebservice($countryCode, $number)
{
try
{
$sOptions = [
'user_agent' => 'Membership Pro',
'connection_timeout' => 5,
];
$sClient = new SoapClient('https://ec.europa.eu/taxation_customs/vies/checkVatService.wsdl', $sOptions);
$params = ['countryCode' => $countryCode, 'vatNumber' => $number];
for ($i = 0; $i < 2; $i++)
{
$response = $sClient->checkVat($params);
if (is_object($response))
{
return (bool) $response->valid;
}
sleep(1);
}
}
catch (SoapFault $e)
{
}
return null;
}
/**
* Validate Vat Number using vatcomply.com api
*
* @param $vatNumber
*
* @return bool|void
*/
protected static function validateUsingVatComplyAPI($vatNumber)
{
try
{
$http = HttpFactory::getHttp();
$url = 'https://api.vatcomply.com/vat?vat_number=' . $vatNumber;
for ($i = 0; $i < 2; $i++)
{
$response = $http->get($url, ['User-Agent' => 'Membership Pro'], 5);
if ($response->code >= 200 && $response->code < 400)
{
$jsonResponse = json_decode($response->body);
return (bool) $jsonResponse->valid;
}
sleep(1);
}
}
catch (RuntimeException $e)
{
}
return null;
}
}