119 lines
3.9 KiB
PHP
119 lines
3.9 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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* Validates whether a value is a valid MAC address.
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*
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* @author Ninos Ego <me@ninosego.de>
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*/
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class MacAddressValidator 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 MacAddress) {
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throw new UnexpectedTypeException($constraint, MacAddress::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 (null !== $constraint->normalizer) {
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$value = ($constraint->normalizer)($value);
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}
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if (!self::checkMac($value, $constraint->type)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(MacAddress::INVALID_MAC_ERROR)
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->addViolation();
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}
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}
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/**
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* Checks whether a MAC address is valid.
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*/
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private static function checkMac(string $mac, string $type): bool
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{
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if (!filter_var($mac, \FILTER_VALIDATE_MAC)) {
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return false;
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}
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return match ($type) {
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MacAddress::ALL => true,
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MacAddress::ALL_NO_BROADCAST => !self::isBroadcast($mac),
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MacAddress::LOCAL_ALL => self::isLocal($mac),
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MacAddress::LOCAL_NO_BROADCAST => self::isLocal($mac) && !self::isBroadcast($mac),
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MacAddress::LOCAL_UNICAST => self::isLocal($mac) && self::isUnicast($mac),
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MacAddress::LOCAL_MULTICAST => self::isLocal($mac) && !self::isUnicast($mac),
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MacAddress::LOCAL_MULTICAST_NO_BROADCAST => self::isLocal($mac) && !self::isUnicast($mac) && !self::isBroadcast($mac),
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MacAddress::UNIVERSAL_ALL => !self::isLocal($mac),
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MacAddress::UNIVERSAL_UNICAST => !self::isLocal($mac) && self::isUnicast($mac),
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MacAddress::UNIVERSAL_MULTICAST => !self::isLocal($mac) && !self::isUnicast($mac),
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MacAddress::UNICAST_ALL => self::isUnicast($mac),
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MacAddress::MULTICAST_ALL => !self::isUnicast($mac),
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MacAddress::MULTICAST_NO_BROADCAST => !self::isUnicast($mac) && !self::isBroadcast($mac),
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MacAddress::BROADCAST => self::isBroadcast($mac),
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};
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}
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/**
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* Checks whether a MAC address is unicast or multicast.
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*/
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private static function isUnicast(string $mac): bool
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{
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return match (self::sanitize($mac)[1]) {
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'0', '4', '8', 'c', '2', '6', 'a', 'e' => true,
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default => false,
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};
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}
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/**
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* Checks whether a MAC address is local or universal.
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*/
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private static function isLocal(string $mac): bool
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{
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return match (self::sanitize($mac)[1]) {
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'2', '6', 'a', 'e', '3', '7', 'b', 'f' => true,
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default => false,
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};
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}
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/**
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* Checks whether a MAC address is broadcast.
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*/
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private static function isBroadcast(string $mac): bool
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{
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return 'ffffffffffff' === self::sanitize($mac);
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}
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/**
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* Returns the sanitized MAC address.
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*/
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private static function sanitize(string $mac): string
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{
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return strtolower(str_replace([':', '-', '.'], '', $mac));
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}
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}
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