79 lines
2.4 KiB
PHP
79 lines
2.4 KiB
PHP
<?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 Laurent Masforné <l.masforne@gmail.com>
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*
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* @see https://en.wikipedia.org/wiki/International_Securities_Identification_Number
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*/
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class IsinValidator extends ConstraintValidator
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{
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public function validate(mixed $value, Constraint $constraint): void
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{
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if (!$constraint instanceof Isin) {
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throw new UnexpectedTypeException($constraint, Isin::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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$value = strtoupper($value);
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if (Isin::VALIDATION_LENGTH !== \strlen($value)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Isin::INVALID_LENGTH_ERROR)
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->addViolation();
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return;
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}
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if (!preg_match(Isin::VALIDATION_PATTERN, $value)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Isin::INVALID_PATTERN_ERROR)
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->addViolation();
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return;
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}
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if (!$this->isCorrectChecksum($value)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Isin::INVALID_CHECKSUM_ERROR)
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->addViolation();
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}
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}
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private function isCorrectChecksum(string $input): bool
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{
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$characters = str_split($input);
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foreach ($characters as $i => $char) {
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$characters[$i] = \intval($char, 36);
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}
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$number = implode('', $characters);
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return 0 === $this->context->getValidator()->validate($number, new Luhn())->count();
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}
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}
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