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<?php |
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/* |
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* This file is part of Respect/Validation. |
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* |
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* (c) Alexandre Gomes Gaigalas <[email protected]> |
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* |
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* For the full copyright and license information, please view the "LICENSE.md" |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Respect\Validation\Rules; |
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use function is_string; |
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use function str_replace; |
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use function strtoupper; |
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use function strlen; |
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use function preg_match; |
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use function substr; |
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use function preg_replace_callback; |
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use function strpos; |
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use function bcmod; |
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/** |
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* Validates wether the input is a valid IBAN or not |
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* |
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* @author Mazen Touati <[email protected]> |
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*/ |
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final class IBAN extends AbstractRule |
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{ |
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private const COUNTRIES_CODES = [ |
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'AL' => '28', |
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'AD' => '24', |
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'AT' => '20', |
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'AZ' => '28', |
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'BH' => '22', |
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'BE' => '16', |
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'BA' => '20', |
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'BR' => '29', |
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'BG' => '22', |
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'CR' => '21', |
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'HR' => '21', |
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'CY' => '28', |
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'CZ' => '24', |
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'DK' => '18', |
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'DO' => '28', |
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'EE' => '20', |
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'FO' => '18', |
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'FI' => '18', |
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'FR' => '27', |
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'GE' => '22', |
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'DE' => '22', |
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'GI' => '23', |
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'GR' => '27', |
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'GL' => '18', |
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'GT' => '28', |
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'HU' => '28', |
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'IS' => '26', |
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'IE' => '22', |
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'IL' => '23', |
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'IT' => '27', |
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'JO' => '30', |
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'KZ' => '20', |
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'KW' => '30', |
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'LV' => '21', |
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'LB' => '28', |
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'LI' => '21', |
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'LT' => '20', |
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'LU' => '20', |
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'MK' => '19', |
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'MT' => '31', |
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'MR' => '27', |
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'MU' => '30', |
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'MD' => '24', |
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'MC' => '27', |
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'ME' => '22', |
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'NL' => '18', |
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'NO' => '15', |
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'PK' => '24', |
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'PL' => '28', |
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'PS' => '29', |
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'PT' => '25', |
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'QA' => '29', |
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'XK' => '20', |
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'RO' => '24', |
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'LC' => '32', |
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'SM' => '27', |
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'ST' => '25', |
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'SA' => '24', |
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'RS' => '22', |
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'SC' => '31', |
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'SK' => '24', |
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'SI' => '19', |
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'ES' => '24', |
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'SE' => '24', |
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'CH' => '21', |
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'TL' => '23', |
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'TN' => '24', |
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'TR' => '26', |
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'UA' => '29', |
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'AE' => '23', |
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'GB' => '22', |
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'VG' => '24', |
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]; |
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private const ALPHABET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function validate($input): bool |
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{ |
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$iban = $this->validateStructure($input); |
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if ($iban === false) { |
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return false; |
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} |
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$countryCode = substr($iban, 0, 2); |
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if (!isset(self::COUNTRIES_CODES[$countryCode]) || self::COUNTRIES_CODES[$countryCode] != strlen($iban)) { |
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return false; |
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} |
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$checkSum = substr($iban, 2, 2); |
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$account = substr($iban, 4); |
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$reArrangedIBAN = $account.$countryCode.$checkSum; |
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$integerIBAN = preg_replace_callback('/[A-Z]/', function ($match) { |
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return strpos(self::ALPHABET, $match[0]) + 10; |
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}, $reArrangedIBAN); |
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$remainder = (int)bcmod($integerIBAN, '97'); |
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return $remainder === 1; |
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} |
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/** |
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* Makes sure that the input is adhering to the IBAN structure |
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* |
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* @param string $input Suggested IBAN to test |
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* |
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* @return bool|string Return false on failure or a sanitized IBAN |
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*/ |
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private function validateStructure($input) |
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{ |
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if (!is_string($input)) { |
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return false; |
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} |
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$iban = str_replace(' ', '', strtoupper($input)); |
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if (!preg_match('/[A-Z0-9]{15,}/', $iban)) { |
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return false; |
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} |
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return $iban; |
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} |
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} |
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Respect /
Validation
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