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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Validator\Rule; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use Yiisoft\NetworkUtilities\IpHelper; |
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use Yiisoft\Validator\Result; |
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use Yiisoft\Validator\ValidationContext; |
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use Yiisoft\Validator\Exception\UnexpectedRuleException; |
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use function is_string; |
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/** |
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* Checks if the value is a valid IPv4/IPv6 address or subnet. |
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* |
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* It also may change the value if normalization of IPv6 expansion is enabled. |
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*/ |
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final class IpHandler implements RuleHandlerInterface |
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{ |
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/** |
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* Negation char. |
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* |
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* Used to negate {@see $ranges} or {@see $network} or to negate validating value when {@see $allowNegation} |
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* is used. |
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*/ |
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private const NEGATION_CHAR = '!'; |
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public function validate(mixed $value, object $rule, ?ValidationContext $context = null): Result |
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{ |
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118 |
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if (!$rule instanceof Ip) { |
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1 |
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throw new UnexpectedRuleException(Ip::class, $rule); |
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} |
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117 |
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$this->checkAllowedVersions($rule); |
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$result = new Result(); |
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if (!is_string($value)) { |
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$result->addError($rule->getMessage()); |
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return $result; |
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} |
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112 |
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if (preg_match($rule->getIpParsePattern(), $value, $matches) === 0) { |
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$result->addError($rule->getMessage()); |
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return $result; |
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} |
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86 |
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$negation = !empty($matches['not'] ?? null); |
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$ip = $matches['ip']; |
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$cidr = $matches['cidr'] ?? null; |
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$ipCidr = $matches['ipCidr']; |
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try { |
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$ipVersion = IpHelper::getIpVersion($ip, false); |
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} catch (InvalidArgumentException $e) { |
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$result->addError($rule->getMessage()); |
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return $result; |
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} |
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$result = $this->validateValueParts($rule, $result, $cidr, $negation); |
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if (!$result->isValid()) { |
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return $result; |
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} |
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$result = $this->validateVersion($rule, $result, $ipVersion); |
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if (!$result->isValid()) { |
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return $result; |
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} |
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return $this->validateCidr($rule, $result, $cidr, $ipCidr); |
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} |
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/** |
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* Used to get the Regexp pattern for initial IP address parsing. |
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*/ |
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public function getIpParsePattern(): string |
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{ |
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return '/^(?<not>' . preg_quote( |
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self::NEGATION_CHAR, |
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'/' |
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) . ')?(?<ipCidr>(?<ip>(?:' . IpHelper::IPV4_PATTERN . ')|(?:' . IpHelper::IPV6_PATTERN . '))(?:\/(?<cidr>-?\d+))?)$/'; |
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} |
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117 |
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private function checkAllowedVersions(Ip $rule): void |
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{ |
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if (!$rule->isAllowIpv4() && !$rule->isAllowIpv6()) { |
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1 |
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throw new RuntimeException('Both IPv4 and IPv6 checks can not be disabled at the same time.'); |
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} |
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} |
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private function validateValueParts(Ip $rule, Result $result, ?string $cidr, bool $negation): Result |
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{ |
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if ($cidr === null && $rule->isRequireSubnet()) { |
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$result->addError($rule->getNoSubnetMessage()); |
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return $result; |
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} |
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if ($cidr !== null && !$rule->isAllowSubnet()) { |
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$result->addError($rule->getHasSubnetMessage()); |
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return $result; |
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} |
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if ($negation && !$rule->isAllowNegation()) { |
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$result->addError($rule->getMessage()); |
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return $result; |
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} |
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return $result; |
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} |
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private function validateVersion(Ip $rule, Result $result, int $ipVersion): Result |
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{ |
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if ($ipVersion === IpHelper::IPV6 && !$rule->isAllowIpv6()) { |
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$result->addError($rule->getIpv6NotAllowedMessage()); |
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return $result; |
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} |
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if ($ipVersion === IpHelper::IPV4 && !$rule->isAllowIpv4()) { |
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$result->addError($rule->getIpv4NotAllowedMessage()); |
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return $result; |
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} |
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return $result; |
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} |
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private function validateCidr(Ip $rule, Result $result, $cidr, $ipCidr): Result |
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{ |
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if ($cidr !== null) { |
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try { |
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IpHelper::getCidrBits($ipCidr); |
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} catch (InvalidArgumentException $e) { |
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$result->addError($rule->getWrongCidrMessage()); |
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return $result; |
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} |
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} |
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if (!$rule->isAllowed($ipCidr)) { |
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$result->addError($rule->getNotInRangeMessage()); |
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return $result; |
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} |
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return $result; |
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} |
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} |
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yiisoft /
validator
