<?php
namespace MailPoetVendor\Symfony\Component\Validator\Constraints;
if (!defined('ABSPATH')) exit;
use MailPoetVendor\Symfony\Component\Validator\Constraint;
use MailPoetVendor\Symfony\Component\Validator\ConstraintValidator;
use MailPoetVendor\Symfony\Component\Validator\Exception\UnexpectedTypeException;
use MailPoetVendor\Symfony\Component\Validator\Exception\UnexpectedValueException;
class IbanValidator extends ConstraintValidator
{
private const FORMATS = [
'AD' => 'AD\\d{2}\\d{4}\\d{4}[\\dA-Z]{12}',
// Andorra
'AE' => 'AE\\d{2}\\d{3}\\d{16}',
// United Arab Emirates
'AL' => 'AL\\d{2}\\d{8}[\\dA-Z]{16}',
// Albania
'AO' => 'AO\\d{2}\\d{21}',
// Angola
'AT' => 'AT\\d{2}\\d{5}\\d{11}',
// Austria
'AX' => 'FI\\d{2}\\d{6}\\d{7}\\d{1}',
// Aland Islands
'AZ' => 'AZ\\d{2}[A-Z]{4}[\\dA-Z]{20}',
// Azerbaijan
'BA' => 'BA\\d{2}\\d{3}\\d{3}\\d{8}\\d{2}',
// Bosnia and Herzegovina
'BE' => 'BE\\d{2}\\d{3}\\d{7}\\d{2}',
// Belgium
'BF' => 'BF\\d{2}\\d{23}',
// Burkina Faso
'BG' => 'BG\\d{2}[A-Z]{4}\\d{4}\\d{2}[\\dA-Z]{8}',
// Bulgaria
'BH' => 'BH\\d{2}[A-Z]{4}[\\dA-Z]{14}',
// Bahrain
'BI' => 'BI\\d{2}\\d{12}',
// Burundi
'BJ' => 'BJ\\d{2}[A-Z]{1}\\d{23}',
// Benin
'BY' => 'BY\\d{2}[\\dA-Z]{4}\\d{4}[\\dA-Z]{16}',
// Belarus - https://bank.codes/iban/structure/belarus/
'BL' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// Saint Barthelemy
'BR' => 'BR\\d{2}\\d{8}\\d{5}\\d{10}[A-Z][\\dA-Z]',
// Brazil
'CG' => 'CG\\d{2}\\d{23}',
// Congo
'CH' => 'CH\\d{2}\\d{5}[\\dA-Z]{12}',
// Switzerland
'CI' => 'CI\\d{2}[A-Z]{1}\\d{23}',
// Ivory Coast
'CM' => 'CM\\d{2}\\d{23}',
// Cameron
'CR' => 'CR\\d{2}0\\d{3}\\d{14}',
// Costa Rica
'CV' => 'CV\\d{2}\\d{21}',
// Cape Verde
'CY' => 'CY\\d{2}\\d{3}\\d{5}[\\dA-Z]{16}',
// Cyprus
'CZ' => 'CZ\\d{2}\\d{20}',
// Czech Republic
'DE' => 'DE\\d{2}\\d{8}\\d{10}',
// Germany
'DO' => 'DO\\d{2}[\\dA-Z]{4}\\d{20}',
// Dominican Republic
'DK' => 'DK\\d{2}\\d{4}\\d{10}',
// Denmark
'DZ' => 'DZ\\d{2}\\d{20}',
// Algeria
'EE' => 'EE\\d{2}\\d{2}\\d{2}\\d{11}\\d{1}',
// Estonia
'ES' => 'ES\\d{2}\\d{4}\\d{4}\\d{1}\\d{1}\\d{10}',
// Spain (also includes Canary Islands, Ceuta and Melilla)
'FI' => 'FI\\d{2}\\d{6}\\d{7}\\d{1}',
// Finland
'FO' => 'FO\\d{2}\\d{4}\\d{9}\\d{1}',
// Faroe Islands
'FR' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// France
'GF' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// French Guyana
'GB' => 'GB\\d{2}[A-Z]{4}\\d{6}\\d{8}',
// United Kingdom of Great Britain and Northern Ireland
'GE' => 'GE\\d{2}[A-Z]{2}\\d{16}',
// Georgia
'GI' => 'GI\\d{2}[A-Z]{4}[\\dA-Z]{15}',
// Gibraltar
'GL' => 'GL\\d{2}\\d{4}\\d{9}\\d{1}',
// Greenland
'GP' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// Guadeloupe
'GR' => 'GR\\d{2}\\d{3}\\d{4}[\\dA-Z]{16}',
// Greece
'GT' => 'GT\\d{2}[\\dA-Z]{4}[\\dA-Z]{20}',
// Guatemala
'HR' => 'HR\\d{2}\\d{7}\\d{10}',
// Croatia
'HU' => 'HU\\d{2}\\d{3}\\d{4}\\d{1}\\d{15}\\d{1}',
// Hungary
'IE' => 'IE\\d{2}[A-Z]{4}\\d{6}\\d{8}',
// Ireland
'IL' => 'IL\\d{2}\\d{3}\\d{3}\\d{13}',
// Israel
'IR' => 'IR\\d{2}\\d{22}',
// Iran
'IS' => 'IS\\d{2}\\d{4}\\d{2}\\d{6}\\d{10}',
// Iceland
'IT' => 'IT\\d{2}[A-Z]{1}\\d{5}\\d{5}[\\dA-Z]{12}',
// Italy
'JO' => 'JO\\d{2}[A-Z]{4}\\d{4}[\\dA-Z]{18}',
// Jordan
'KW' => 'KW\\d{2}[A-Z]{4}\\d{22}',
// KUWAIT
'KZ' => 'KZ\\d{2}\\d{3}[\\dA-Z]{13}',
// Kazakhstan
'LB' => 'LB\\d{2}\\d{4}[\\dA-Z]{20}',
// LEBANON
'LI' => 'LI\\d{2}\\d{5}[\\dA-Z]{12}',
// Liechtenstein (Principality of)
'LT' => 'LT\\d{2}\\d{5}\\d{11}',
// Lithuania
'LU' => 'LU\\d{2}\\d{3}[\\dA-Z]{13}',
// Luxembourg
'LV' => 'LV\\d{2}[A-Z]{4}[\\dA-Z]{13}',
// Latvia
'MC' => 'MC\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// Monaco
'MD' => 'MD\\d{2}[\\dA-Z]{2}[\\dA-Z]{18}',
// Moldova
'ME' => 'ME\\d{2}\\d{3}\\d{13}\\d{2}',
// Montenegro
'MF' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// Saint Martin (French part)
'MG' => 'MG\\d{2}\\d{23}',
// Madagascar
'MK' => 'MK\\d{2}\\d{3}[\\dA-Z]{10}\\d{2}',
// Macedonia, Former Yugoslav Republic of
'ML' => 'ML\\d{2}[A-Z]{1}\\d{23}',
// Mali
'MQ' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// Martinique
'MR' => 'MR13\\d{5}\\d{5}\\d{11}\\d{2}',
// Mauritania
'MT' => 'MT\\d{2}[A-Z]{4}\\d{5}[\\dA-Z]{18}',
// Malta
'MU' => 'MU\\d{2}[A-Z]{4}\\d{2}\\d{2}\\d{12}\\d{3}[A-Z]{3}',
// Mauritius
'MZ' => 'MZ\\d{2}\\d{21}',
// Mozambique
'NC' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// New Caledonia
'NL' => 'NL\\d{2}[A-Z]{4}\\d{10}',
// The Netherlands
'NO' => 'NO\\d{2}\\d{4}\\d{6}\\d{1}',
// Norway
'PF' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// French Polynesia
'PK' => 'PK\\d{2}[A-Z]{4}[\\dA-Z]{16}',
// Pakistan
'PL' => 'PL\\d{2}\\d{8}\\d{16}',
// Poland
'PM' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// Saint Pierre et Miquelon
'PS' => 'PS\\d{2}[A-Z]{4}[\\dA-Z]{21}',
// Palestine, State of
'PT' => 'PT\\d{2}\\d{4}\\d{4}\\d{11}\\d{2}',
// Portugal (plus Azores and Madeira)
'QA' => 'QA\\d{2}[A-Z]{4}[\\dA-Z]{21}',
// Qatar
'RE' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// Reunion
'RO' => 'RO\\d{2}[A-Z]{4}[\\dA-Z]{16}',
// Romania
'RS' => 'RS\\d{2}\\d{3}\\d{13}\\d{2}',
// Serbia
'SA' => 'SA\\d{2}\\d{2}[\\dA-Z]{18}',
// Saudi Arabia
'SE' => 'SE\\d{2}\\d{3}\\d{16}\\d{1}',
// Sweden
'SI' => 'SI\\d{2}\\d{5}\\d{8}\\d{2}',
// Slovenia
'SK' => 'SK\\d{2}\\d{4}\\d{6}\\d{10}',
// Slovak Republic
'SM' => 'SM\\d{2}[A-Z]{1}\\d{5}\\d{5}[\\dA-Z]{12}',
// San Marino
'SN' => 'SN\\d{2}[A-Z]{1}\\d{23}',
// Senegal
'TF' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// French Southern Territories
'TL' => 'TL\\d{2}\\d{3}\\d{14}\\d{2}',
// Timor-Leste
'TN' => 'TN59\\d{2}\\d{3}\\d{13}\\d{2}',
// Tunisia
'TR' => 'TR\\d{2}\\d{5}[\\dA-Z]{1}[\\dA-Z]{16}',
// Turkey
'UA' => 'UA\\d{2}\\d{6}[\\dA-Z]{19}',
// Ukraine
'VA' => 'VA\\d{2}\\d{3}\\d{15}',
// Vatican City State
'VG' => 'VG\\d{2}[A-Z]{4}\\d{16}',
// Virgin Islands, British
'WF' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
// Wallis and Futuna Islands
'XK' => 'XK\\d{2}\\d{4}\\d{10}\\d{2}',
// Republic of Kosovo
'YT' => 'FR\\d{2}\\d{5}\\d{5}[\\dA-Z]{11}\\d{2}',
];
public function validate($value, Constraint $constraint)
{
if (!$constraint instanceof Iban) {
throw new UnexpectedTypeException($constraint, Iban::class);
}
if (null === $value || '' === $value) {
return;
}
if (!\is_scalar($value) && !(\is_object($value) && \method_exists($value, '__toString'))) {
throw new UnexpectedValueException($value, 'string');
}
$value = (string) $value;
// Remove spaces and convert to uppercase
$canonicalized = \str_replace(' ', '', \strtoupper($value));
// The IBAN must contain only digits and characters...
if (!\ctype_alnum($canonicalized)) {
$this->context->buildViolation($constraint->message)->setParameter('{{ value }}', $this->formatValue($value))->setCode(Iban::INVALID_CHARACTERS_ERROR)->addViolation();
return;
}
// ...start with a two-letter country code
$countryCode = \substr($canonicalized, 0, 2);
if (!\ctype_alpha($countryCode)) {
$this->context->buildViolation($constraint->message)->setParameter('{{ value }}', $this->formatValue($value))->setCode(Iban::INVALID_COUNTRY_CODE_ERROR)->addViolation();
return;
}
// ...have a format available
if (!\array_key_exists($countryCode, self::FORMATS)) {
$this->context->buildViolation($constraint->message)->setParameter('{{ value }}', $this->formatValue($value))->setCode(Iban::NOT_SUPPORTED_COUNTRY_CODE_ERROR)->addViolation();
return;
}
// ...and have a valid format
if (!\preg_match('/^' . self::FORMATS[$countryCode] . '$/', $canonicalized)) {
$this->context->buildViolation($constraint->message)->setParameter('{{ value }}', $this->formatValue($value))->setCode(Iban::INVALID_FORMAT_ERROR)->addViolation();
return;
}
// Move the first four characters to the end
// e.g. CH93 0076 2011 6238 5295 7
// -> 0076 2011 6238 5295 7 CH93
$canonicalized = \substr($canonicalized, 4) . \substr($canonicalized, 0, 4);
// Convert all remaining letters to their ordinals
// The result is an integer, which is too large for PHP's int
// data type, so we store it in a string instead.
// e.g. 0076 2011 6238 5295 7 CH93
// -> 0076 2011 6238 5295 7 121893
$checkSum = self::toBigInt($canonicalized);
// Do a modulo-97 operation on the large integer
// We cannot use PHP's modulo operator, so we calculate the
// modulo step-wisely instead
if (1 !== self::bigModulo97($checkSum)) {
$this->context->buildViolation($constraint->message)->setParameter('{{ value }}', $this->formatValue($value))->setCode(Iban::CHECKSUM_FAILED_ERROR)->addViolation();
}
}
private static function toBigInt(string $string) : string
{
$chars = \str_split($string);
$bigInt = '';
foreach ($chars as $char) {
// Convert uppercase characters to ordinals, starting with 10 for "A"
if (\ctype_upper($char)) {
$bigInt .= \ord($char) - 55;
continue;
}
// Simply append digits
$bigInt .= $char;
}
return $bigInt;
}
private static function bigModulo97(string $bigInt) : int
{
$parts = \str_split($bigInt, 7);
$rest = 0;
foreach ($parts as $part) {
$rest = ($rest . $part) % 97;
}
return $rest;
}
}