function IpValidator::checkIp

Checks whether an IP address is valid.

@internal

2 calls to IpValidator::checkIp()

CidrValidator::validate in vendor/symfony/validator/Constraints/CidrValidator.php

Checks if the passed value is valid.

IpValidator::validate in vendor/symfony/validator/Constraints/IpValidator.php

Checks if the passed value is valid.

File

vendor/symfony/validator/Constraints/IpValidator.php, line 33

Class

IpValidator

Validates whether a value is a valid IP address.

Namespace

Symfony\Component\Validator\Constraints

Code

public static function checkIp(string $ip, mixed $version) : bool {
    $flag = match ($version) {    Ip::V4, Ip::V4_NO_PUBLIC, Ip::V4_ONLY_PRIVATE, Ip::V4_ONLY_RESERVED => \FILTER_FLAG_IPV4,
        Ip::V6, Ip::V6_NO_PUBLIC, Ip::V6_ONLY_PRIVATE, Ip::V6_ONLY_RESERVED => \FILTER_FLAG_IPV6,
        Ip::V4_NO_PRIVATE => \FILTER_FLAG_IPV4 | \FILTER_FLAG_NO_PRIV_RANGE,
        Ip::V6_NO_PRIVATE => \FILTER_FLAG_IPV6 | \FILTER_FLAG_NO_PRIV_RANGE,
        Ip::ALL_NO_PRIVATE => \FILTER_FLAG_NO_PRIV_RANGE,
        Ip::V4_NO_RESERVED => \FILTER_FLAG_IPV4 | \FILTER_FLAG_NO_RES_RANGE,
        Ip::V6_NO_RESERVED => \FILTER_FLAG_IPV6 | \FILTER_FLAG_NO_RES_RANGE,
        Ip::ALL_NO_RESERVED => \FILTER_FLAG_NO_RES_RANGE,
        Ip::V4_ONLY_PUBLIC => \FILTER_FLAG_IPV4 | \FILTER_FLAG_NO_PRIV_RANGE | \FILTER_FLAG_NO_RES_RANGE,
        Ip::V6_ONLY_PUBLIC => \FILTER_FLAG_IPV6 | \FILTER_FLAG_NO_PRIV_RANGE | \FILTER_FLAG_NO_RES_RANGE,
        Ip::ALL_ONLY_PUBLIC => \FILTER_FLAG_NO_PRIV_RANGE | \FILTER_FLAG_NO_RES_RANGE,
        default => 0,
    
    };
    if (!filter_var($ip, \FILTER_VALIDATE_IP, $flag)) {
        return false;
    }
    $inverseFlag = match ($version) {    Ip::V4_NO_PUBLIC, Ip::V6_NO_PUBLIC, Ip::ALL_NO_PUBLIC => \FILTER_FLAG_NO_PRIV_RANGE | \FILTER_FLAG_NO_RES_RANGE,
        Ip::V4_ONLY_PRIVATE, Ip::V6_ONLY_PRIVATE, Ip::ALL_ONLY_PRIVATE => \FILTER_FLAG_NO_PRIV_RANGE,
        Ip::V4_ONLY_RESERVED, Ip::V6_ONLY_RESERVED, Ip::ALL_ONLY_RESERVED => \FILTER_FLAG_NO_RES_RANGE,
        default => 0,
    
    };
    if ($inverseFlag && filter_var($ip, \FILTER_VALIDATE_IP, $inverseFlag)) {
        return false;
    }
    return true;
}