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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 Yiisoft\NetworkUtilities\IpHelper; |
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use Yiisoft\Validator\Exception\UnexpectedRuleException; |
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use Yiisoft\Validator\Result; |
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use Yiisoft\Validator\RuleHandlerInterface; |
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use Yiisoft\Validator\ValidationContext; |
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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 $context): Result |
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{ |
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135 |
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if (!$rule instanceof Ip) { |
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1 |
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throw new UnexpectedRuleException(Ip::class, $rule); |
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} |
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if (!is_string($value)) { |
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return (new Result())->addError($rule->getIncorrectInputMessage(), [ |
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'attribute' => $context->getAttribute(), |
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'type' => get_debug_type($value), |
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]); |
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} |
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if (preg_match($this->getIpParsePattern(), $value, $matches) === 0) { |
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return self::getGenericErrorResult($rule->getMessage(), $context, $value); |
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} |
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100 |
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$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 = $matches['ipCidr']; |
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/** |
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* Exception handling and validation in IpHelper are not needed because of the check above (regular expression |
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* in "getIpParsePattern()"). |
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* |
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* @infection-ignore-all |
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*/ |
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$ipVersion = IpHelper::getIpVersion($ip, validate: false); |
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$result = self::validateValueParts($rule, $cidr, $negation, $value, $context); |
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if ($result !== null) { |
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return $result; |
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} |
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$result = self::validateVersion($rule, $ipVersion, $value, $context); |
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if ($result !== null) { |
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return $result; |
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} |
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$result = self::validateCidr($rule, $cidr, $ipCidr, $value, $context); |
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if ($result !== null) { |
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return $result; |
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} |
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return new Result(); |
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} |
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/** |
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* Used to get the Regexp pattern for initial IP address parsing. |
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*/ |
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private function getIpParsePattern(): string |
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{ |
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return '/^(?<not>' . preg_quote( |
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self::NEGATION_CHAR, |
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'/' |
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) . ')?(?<ipCidr>(?<ip>(?:' . IpHelper::IPV4_PATTERN . ')|(?:' . IpHelper::IPV6_PATTERN . '))(?:\/(?<cidr>-?\d+))?)$/'; |
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} |
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private static function validateValueParts( |
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Ip $rule, |
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?string $cidr, |
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bool $negation, |
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string $value, |
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ValidationContext $context |
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): Result|null { |
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if ($cidr === null && $rule->isRequireSubnet()) { |
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return self::getGenericErrorResult($rule->getNoSubnetMessage(), $context, $value); |
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} |
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if ($cidr !== null && !$rule->isAllowSubnet()) { |
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return self::getGenericErrorResult($rule->getHasSubnetMessage(), $context, $value); |
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} |
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if ($negation && !$rule->isAllowNegation()) { |
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return self::getGenericErrorResult($rule->getMessage(), $context, $value); |
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} |
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return null; |
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} |
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85 |
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private static function validateVersion( |
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Ip $rule, |
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int $ipVersion, |
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string $value, |
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ValidationContext $context |
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): Result|null { |
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if ($ipVersion === IpHelper::IPV6 && !$rule->isAllowIpv6()) { |
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return self::getGenericErrorResult($rule->getIpv6NotAllowedMessage(), $context, $value); |
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} |
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if ($ipVersion === IpHelper::IPV4 && !$rule->isAllowIpv4()) { |
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return self::getGenericErrorResult($rule->getIpv4NotAllowedMessage(), $context, $value); |
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} |
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return null; |
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} |
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private static function validateCidr(Ip $rule, |
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?string $cidr, |
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string $ipCidr, |
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string $value, |
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ValidationContext $context |
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): Result|null { |
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if ($cidr !== null) { |
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try { |
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IpHelper::getCidrBits($ipCidr); |
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} catch (InvalidArgumentException) { |
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return self::getGenericErrorResult($rule->getWrongCidrMessage(), $context, $value); |
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} |
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} |
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if (!$rule->isAllowed($ipCidr)) { |
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return self::getGenericErrorResult($rule->getNotInRangeMessage(), $context, $value); |
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} |
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return null; |
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} |
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private static function getGenericErrorResult(string $message, ValidationContext $context, string $value): Result |
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{ |
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return (new Result())->addError($message, [ |
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'attribute' => $context->getAttribute(), |
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'value' => $value, |
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]); |
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} |
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} |
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yiisoft /
validator
