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<?php |
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declare(strict_types = 1); |
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namespace Sop\X509\GeneralName; |
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use Sop\ASN1\Type\Primitive\OctetString; |
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use Sop\ASN1\Type\Tagged\ImplicitlyTaggedType; |
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use Sop\ASN1\Type\TaggedType; |
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use Sop\ASN1\Type\UnspecifiedType; |
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/** |
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* Implements *iPAddress* CHOICE type of *GeneralName*. |
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* |
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* Concrete classes `IPv4Address` and `IPv6Address` |
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* furthermore implement the parsing semantics. |
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* |
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* @see https://tools.ietf.org/html/rfc5280#section-4.2.1.6 |
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*/ |
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abstract class IPAddress extends GeneralName |
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{ |
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/** |
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* IP address. |
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* |
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* @var string |
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*/ |
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protected $_ip; |
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/** |
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* Subnet mask. |
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* |
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* @var null|string |
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*/ |
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protected $_mask; |
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/** |
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* Constructor. |
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* |
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* @param string $ip |
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* @param null|string $mask |
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*/ |
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public function __construct(string $ip, ?string $mask = null) |
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{ |
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$this->_tag = self::TAG_IP_ADDRESS; |
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$this->_ip = $ip; |
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$this->_mask = $mask; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @return self |
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*/ |
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public static function fromChosenASN1(UnspecifiedType $el): GeneralName |
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{ |
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$octets = $el->asOctetString()->string(); |
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switch (strlen($octets)) { |
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case 4: |
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case 8: |
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return IPv4Address::fromOctets($octets); |
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case 16: |
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2 |
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case 32: |
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return IPv6Address::fromOctets($octets); |
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default: |
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throw new \UnexpectedValueException( |
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'Invalid octet length for IP address.'); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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1 |
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public function string(): string |
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{ |
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return $this->_ip . (isset($this->_mask) ? '/' . $this->_mask : ''); |
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} |
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/** |
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* Get IP address as a string. |
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* |
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* @return string |
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*/ |
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3 |
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public function address(): string |
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{ |
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return $this->_ip; |
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} |
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/** |
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* Check whether mask is present. |
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* |
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* @return bool |
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*/ |
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3 |
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public function hasMask(): bool |
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{ |
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return isset($this->_mask); |
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} |
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/** |
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* Get subnet mask as a string. |
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* |
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* @throws \LogicException If not set |
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* |
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* @return string |
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*/ |
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3 |
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public function mask(): string |
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{ |
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3 |
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if (!$this->hasMask()) { |
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throw new \LogicException('mask is not set.'); |
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} |
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return $this->_mask; |
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} |
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/** |
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* Get octet representation of the IP address. |
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* |
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* @return string |
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*/ |
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abstract protected function _octets(): string; |
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/** |
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* {@inheritdoc} |
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*/ |
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18 |
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protected function _choiceASN1(): TaggedType |
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{ |
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return new ImplicitlyTaggedType($this->_tag, |
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new OctetString($this->_octets())); |
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} |
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} |
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sop /
x509
