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<?php |
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/** |
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* @link https://github.com/phpviet/validation |
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* |
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* @copyright (c) PHP Viet |
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* @license [MIT](https://opensource.org/licenses/MIT) |
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*/ |
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namespace PHPViet\Validation\Rules; |
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use IPLib\Factory as IpFactory; |
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use IPLib\Address\Type as IpType; |
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use Respect\Validation\Rules\AbstractRule; |
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use IPLib\Address\AddressInterface as IpInterface; |
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use Respect\Validation\Exceptions\ComponentException; |
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/** |
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* @author Vuong Minh <[email protected]> |
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* @since 1.0.0 |
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*/ |
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class IpVN extends AbstractRule |
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{ |
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const IPV4 = IpType::T_IPv4; |
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const IPV6 = IpType::T_IPv6; |
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public $version; |
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public function __construct(?int $version = null) |
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{ |
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if (null !== $version && ! $this->isSupportedVersion($version)) { |
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throw new ComponentException(sprintf('Only versions %d, %d are supported: %d given', self::IPV4, self::IPV6, $version)); |
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} |
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$this->version = $version; |
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} |
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public function validate($input): bool |
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{ |
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if (! $ip = IpFactory::addressFromString($input)) { |
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return false; |
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} |
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if (($version = $ip->getAddressType()) !== $this->version && null !== $this->version) { |
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return false; |
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} |
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if (! $ranges = $this->getIpRanges($input, $version)) { |
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return false; |
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} |
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return $this->validateIpInRange($ip, $ranges); |
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} |
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protected function getIpRanges(string $ip, int $version): ?array |
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{ |
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if (self::IPV4 === $version) { |
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$keys = explode('.', $ip); |
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$map = static::getIpV4Range(); |
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} else { |
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$keys = explode(':', $ip); |
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$map = static::getIpV6Range(); |
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} |
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while (! is_null($key = array_shift($keys))) { |
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if (isset($map[$key])) { |
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$map = $map[$key]; |
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continue; |
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} |
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return $map['range'] ?? null; |
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} |
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return null; |
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} |
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protected function validateIpInRange(IpInterface $ip, array $ranges): bool |
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{ |
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foreach ($ranges as $range) { |
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[$begin, $end] = $range; |
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if (($subnet = IpFactory::rangeFromBoundaries($begin, $end)) && $subnet->contains($ip)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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protected static function getIpV4Range(): array |
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{ |
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static $range = null; |
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if (null === $range) { |
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$range = require __DIR__.'/../../resources/ip-v4-range.php'; |
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} |
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return $range; |
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} |
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protected static function getIpV6Range(): array |
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{ |
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static $range = null; |
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if (null === $range) { |
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$range = require __DIR__.'/../../resources/ip-v6-range.php'; |
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} |
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return $range; |
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} |
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protected function isSupportedVersion(int $version): bool |
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{ |
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return self::IPV4 === $version || self::IPV6 === $version; |
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} |
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} |
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phpviet /
validation
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.