<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Validator\Constraints;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;
use Symfony\Component\Validator\Exception\UnexpectedValueException;
class CidrValidator extends ConstraintValidator
{
public function validate($value, Constraint $constraint): void
{
if (!$constraint instanceof Cidr) {
throw new UnexpectedTypeException($constraint, Cidr::class);
}
if (null === $value || '' === $value) {
return;
}
if (!\is_string($value)) {
throw new UnexpectedValueException($value, 'string');
}
$cidrParts = explode('/', $value, 2);
if (!isset($cidrParts[1])
|| !ctype_digit($cidrParts[1])
|| '' === $cidrParts[0]
) {
$this->context
->buildViolation($constraint->message)
->setCode(Cidr::INVALID_CIDR_ERROR)
->addViolation();
return;
}
$ipAddress = $cidrParts[0];
$netmask = (int) $cidrParts[1];
$validV4 = Ip::V6 !== $constraint->version
&& filter_var($ipAddress, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV4)
&& $netmask <= 32;
$validV6 = Ip::V4 !== $constraint->version
&& filter_var($ipAddress, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV6);
if (!$validV4 && !$validV6) {
$this->context
->buildViolation($constraint->message)
->setCode(Cidr::INVALID_CIDR_ERROR)
->addViolation();
return;
}
if ($netmask < $constraint->netmaskMin || $netmask > $constraint->netmaskMax) {
$this->context
->buildViolation($constraint->netmaskRangeViolationMessage)
->setParameter('{{ min }}', $constraint->netmaskMin)
->setParameter('{{ max }}', $constraint->netmaskMax)
->setCode(Cidr::OUT_OF_RANGE_ERROR)
->addViolation();
}
}
}