70 lines
2.0 KiB
PHP
70 lines
2.0 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 Dmitrii Poddubnyi <dpoddubny@gmail.com>
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*/
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class HostnameValidator extends ConstraintValidator
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{
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/**
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* https://tools.ietf.org/html/rfc2606.
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*/
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private const RESERVED_TLDS = [
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'example',
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'invalid',
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'localhost',
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'test',
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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 Hostname) {
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throw new UnexpectedTypeException($constraint, Hostname::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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if ('' === $value) {
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return;
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}
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if (!$this->isValid($value) || ($constraint->requireTld && !$this->hasValidTld($value))) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Hostname::INVALID_HOSTNAME_ERROR)
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->addViolation();
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}
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}
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private function isValid(string $domain): bool
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{
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return false !== filter_var($domain, \FILTER_VALIDATE_DOMAIN, \FILTER_FLAG_HOSTNAME);
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}
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private function hasValidTld(string $domain): bool
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{
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return str_contains($domain, '.') && !\in_array(substr($domain, strrpos($domain, '.') + 1), self::RESERVED_TLDS, true);
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}
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}
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