260 lines
11 KiB
PHP
260 lines
11 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintValidator;
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use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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use Symfony\Component\Validator\Exception\UnexpectedValueException;
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/**
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* @author Manuel Reinhard <manu@sprain.ch>
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* @author Michael Schummel
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* @author Bernhard Schussek <bschussek@gmail.com>
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*
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* @see http://www.michael-schummel.de/2007/10/05/iban-prufung-mit-php/
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*/
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class IbanValidator extends ConstraintValidator
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{
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/**
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* IBAN country specific formats.
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*
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* The first 2 characters from an IBAN format are the two-character ISO country code.
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* The following 2 characters represent the check digits calculated from the rest of the IBAN characters.
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* The rest are up to thirty alphanumeric characters for
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* a BBAN (Basic Bank Account Number) which has a fixed length per country and,
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* included within it, a bank identifier with a fixed position and a fixed length per country
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*
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* @see https://www.swift.com/sites/default/files/resources/iban_registry.pdf
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*/
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private const FORMATS = [
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'AD' => 'AD\d{2}\d{4}\d{4}[\dA-Z]{12}', // Andorra
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'AE' => 'AE\d{2}\d{3}\d{16}', // United Arab Emirates
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'AL' => 'AL\d{2}\d{8}[\dA-Z]{16}', // Albania
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'AO' => 'AO\d{2}\d{21}', // Angola
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'AT' => 'AT\d{2}\d{5}\d{11}', // Austria
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'AX' => 'FI\d{2}\d{6}\d{7}\d{1}', // Aland Islands
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'AZ' => 'AZ\d{2}[A-Z]{4}[\dA-Z]{20}', // Azerbaijan
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'BA' => 'BA\d{2}\d{3}\d{3}\d{8}\d{2}', // Bosnia and Herzegovina
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'BE' => 'BE\d{2}\d{3}\d{7}\d{2}', // Belgium
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'BF' => 'BF\d{2}\d{23}', // Burkina Faso
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'BG' => 'BG\d{2}[A-Z]{4}\d{4}\d{2}[\dA-Z]{8}', // Bulgaria
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'BH' => 'BH\d{2}[A-Z]{4}[\dA-Z]{14}', // Bahrain
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'BI' => 'BI\d{2}\d{12}', // Burundi
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'BJ' => 'BJ\d{2}[A-Z]{1}\d{23}', // Benin
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'BY' => 'BY\d{2}[\dA-Z]{4}\d{4}[\dA-Z]{16}', // Belarus - https://bank.codes/iban/structure/belarus/
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'BL' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // Saint Barthelemy
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'BR' => 'BR\d{2}\d{8}\d{5}\d{10}[A-Z][\dA-Z]', // Brazil
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'CG' => 'CG\d{2}\d{23}', // Congo
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'CH' => 'CH\d{2}\d{5}[\dA-Z]{12}', // Switzerland
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'CI' => 'CI\d{2}[A-Z]{1}\d{23}', // Ivory Coast
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'CM' => 'CM\d{2}\d{23}', // Cameron
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'CR' => 'CR\d{2}0\d{3}\d{14}', // Costa Rica
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'CV' => 'CV\d{2}\d{21}', // Cape Verde
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'CY' => 'CY\d{2}\d{3}\d{5}[\dA-Z]{16}', // Cyprus
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'CZ' => 'CZ\d{2}\d{20}', // Czech Republic
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'DE' => 'DE\d{2}\d{8}\d{10}', // Germany
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'DO' => 'DO\d{2}[\dA-Z]{4}\d{20}', // Dominican Republic
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'DK' => 'DK\d{2}\d{4}\d{10}', // Denmark
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'DZ' => 'DZ\d{2}\d{20}', // Algeria
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'EE' => 'EE\d{2}\d{2}\d{2}\d{11}\d{1}', // Estonia
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'ES' => 'ES\d{2}\d{4}\d{4}\d{1}\d{1}\d{10}', // Spain (also includes Canary Islands, Ceuta and Melilla)
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'FI' => 'FI\d{2}\d{6}\d{7}\d{1}', // Finland
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'FO' => 'FO\d{2}\d{4}\d{9}\d{1}', // Faroe Islands
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'FR' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // France
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'GF' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // French Guyana
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'GB' => 'GB\d{2}[A-Z]{4}\d{6}\d{8}', // United Kingdom of Great Britain and Northern Ireland
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'GE' => 'GE\d{2}[A-Z]{2}\d{16}', // Georgia
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'GI' => 'GI\d{2}[A-Z]{4}[\dA-Z]{15}', // Gibraltar
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'GL' => 'GL\d{2}\d{4}\d{9}\d{1}', // Greenland
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'GP' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // Guadeloupe
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'GR' => 'GR\d{2}\d{3}\d{4}[\dA-Z]{16}', // Greece
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'GT' => 'GT\d{2}[\dA-Z]{4}[\dA-Z]{20}', // Guatemala
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'HR' => 'HR\d{2}\d{7}\d{10}', // Croatia
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'HU' => 'HU\d{2}\d{3}\d{4}\d{1}\d{15}\d{1}', // Hungary
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'IE' => 'IE\d{2}[A-Z]{4}\d{6}\d{8}', // Ireland
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'IL' => 'IL\d{2}\d{3}\d{3}\d{13}', // Israel
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'IR' => 'IR\d{2}\d{22}', // Iran
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'IS' => 'IS\d{2}\d{4}\d{2}\d{6}\d{10}', // Iceland
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'IT' => 'IT\d{2}[A-Z]{1}\d{5}\d{5}[\dA-Z]{12}', // Italy
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'JO' => 'JO\d{2}[A-Z]{4}\d{4}[\dA-Z]{18}', // Jordan
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'KW' => 'KW\d{2}[A-Z]{4}\d{22}', // KUWAIT
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'KZ' => 'KZ\d{2}\d{3}[\dA-Z]{13}', // Kazakhstan
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'LB' => 'LB\d{2}\d{4}[\dA-Z]{20}', // LEBANON
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'LI' => 'LI\d{2}\d{5}[\dA-Z]{12}', // Liechtenstein (Principality of)
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'LT' => 'LT\d{2}\d{5}\d{11}', // Lithuania
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'LU' => 'LU\d{2}\d{3}[\dA-Z]{13}', // Luxembourg
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'LV' => 'LV\d{2}[A-Z]{4}[\dA-Z]{13}', // Latvia
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'MC' => 'MC\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // Monaco
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'MD' => 'MD\d{2}[\dA-Z]{2}[\dA-Z]{18}', // Moldova
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'ME' => 'ME\d{2}\d{3}\d{13}\d{2}', // Montenegro
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'MF' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // Saint Martin (French part)
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'MG' => 'MG\d{2}\d{23}', // Madagascar
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'MK' => 'MK\d{2}\d{3}[\dA-Z]{10}\d{2}', // Macedonia, Former Yugoslav Republic of
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'ML' => 'ML\d{2}[A-Z]{1}\d{23}', // Mali
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'MQ' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // Martinique
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'MR' => 'MR\d{2}\d{5}\d{5}\d{11}\d{2}', // Mauritania
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'MT' => 'MT\d{2}[A-Z]{4}\d{5}[\dA-Z]{18}', // Malta
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'MU' => 'MU\d{2}[A-Z]{4}\d{2}\d{2}\d{12}\d{3}[A-Z]{3}', // Mauritius
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'MZ' => 'MZ\d{2}\d{21}', // Mozambique
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'NC' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // New Caledonia
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'NL' => 'NL\d{2}[A-Z]{4}\d{10}', // The Netherlands
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'NO' => 'NO\d{2}\d{4}\d{6}\d{1}', // Norway
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'PF' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // French Polynesia
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'PK' => 'PK\d{2}[A-Z]{4}[\dA-Z]{16}', // Pakistan
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'PL' => 'PL\d{2}\d{8}\d{16}', // Poland
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'PM' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // Saint Pierre et Miquelon
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'PS' => 'PS\d{2}[A-Z]{4}[\dA-Z]{21}', // Palestine, State of
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'PT' => 'PT\d{2}\d{4}\d{4}\d{11}\d{2}', // Portugal (plus Azores and Madeira)
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'QA' => 'QA\d{2}[A-Z]{4}[\dA-Z]{21}', // Qatar
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'RE' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // Reunion
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'RO' => 'RO\d{2}[A-Z]{4}[\dA-Z]{16}', // Romania
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'RS' => 'RS\d{2}\d{3}\d{13}\d{2}', // Serbia
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'SA' => 'SA\d{2}\d{2}[\dA-Z]{18}', // Saudi Arabia
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'SE' => 'SE\d{2}\d{3}\d{16}\d{1}', // Sweden
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'SI' => 'SI\d{2}\d{5}\d{8}\d{2}', // Slovenia
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'SK' => 'SK\d{2}\d{4}\d{6}\d{10}', // Slovak Republic
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'SM' => 'SM\d{2}[A-Z]{1}\d{5}\d{5}[\dA-Z]{12}', // San Marino
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'SN' => 'SN\d{2}[A-Z]{1}\d{23}', // Senegal
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'TF' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // French Southern Territories
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'TL' => 'TL\d{2}\d{3}\d{14}\d{2}', // Timor-Leste
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'TN' => 'TN\d{2}\d{2}\d{3}\d{13}\d{2}', // Tunisia
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'TR' => 'TR\d{2}\d{5}[\dA-Z]{1}[\dA-Z]{16}', // Turkey
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'UA' => 'UA\d{2}\d{6}[\dA-Z]{19}', // Ukraine
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'VA' => 'VA\d{2}\d{3}\d{15}', // Vatican City State
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'VG' => 'VG\d{2}[A-Z]{4}\d{16}', // Virgin Islands, British
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'WF' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // Wallis and Futuna Islands
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'XK' => 'XK\d{2}\d{4}\d{10}\d{2}', // Republic of Kosovo
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'YT' => 'FR\d{2}\d{5}\d{5}[\dA-Z]{11}\d{2}', // Mayotte
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];
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/**
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* {@inheritdoc}
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*/
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public function validate(mixed $value, Constraint $constraint)
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{
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if (!$constraint instanceof Iban) {
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throw new UnexpectedTypeException($constraint, Iban::class);
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}
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if (null === $value || '' === $value) {
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return;
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}
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if (!\is_scalar($value) && !$value instanceof \Stringable) {
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throw new UnexpectedValueException($value, 'string');
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}
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$value = (string) $value;
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// Remove spaces and convert to uppercase
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$canonicalized = str_replace(' ', '', strtoupper($value));
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// The IBAN must contain only digits and characters...
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if (!ctype_alnum($canonicalized)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Iban::INVALID_CHARACTERS_ERROR)
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->addViolation();
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return;
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}
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// ...start with a two-letter country code
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$countryCode = substr($canonicalized, 0, 2);
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if (!ctype_alpha($countryCode)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Iban::INVALID_COUNTRY_CODE_ERROR)
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->addViolation();
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return;
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}
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// ...have a format available
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if (!\array_key_exists($countryCode, self::FORMATS)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Iban::NOT_SUPPORTED_COUNTRY_CODE_ERROR)
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->addViolation();
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return;
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}
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// ...and have a valid format
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if (!preg_match('/^'.self::FORMATS[$countryCode].'$/', $canonicalized)
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) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Iban::INVALID_FORMAT_ERROR)
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->addViolation();
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return;
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}
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// Move the first four characters to the end
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// e.g. CH93 0076 2011 6238 5295 7
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// -> 0076 2011 6238 5295 7 CH93
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$canonicalized = substr($canonicalized, 4).substr($canonicalized, 0, 4);
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// Convert all remaining letters to their ordinals
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// The result is an integer, which is too large for PHP's int
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// data type, so we store it in a string instead.
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// e.g. 0076 2011 6238 5295 7 CH93
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// -> 0076 2011 6238 5295 7 121893
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$checkSum = self::toBigInt($canonicalized);
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// Do a modulo-97 operation on the large integer
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// We cannot use PHP's modulo operator, so we calculate the
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// modulo step-wisely instead
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if (1 !== self::bigModulo97($checkSum)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Iban::CHECKSUM_FAILED_ERROR)
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->addViolation();
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}
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}
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private static function toBigInt(string $string): string
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{
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$chars = str_split($string);
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$bigInt = '';
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foreach ($chars as $char) {
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// Convert uppercase characters to ordinals, starting with 10 for "A"
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if (ctype_upper($char)) {
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$bigInt .= (\ord($char) - 55);
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continue;
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}
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// Simply append digits
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$bigInt .= $char;
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}
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return $bigInt;
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}
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private static function bigModulo97(string $bigInt): int
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{
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$parts = str_split($bigInt, 7);
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$rest = 0;
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foreach ($parts as $part) {
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$rest = ($rest.$part) % 97;
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}
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return $rest;
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}
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}
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