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<?php |
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namespace X509\GeneralName; |
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use ASN1\Type\Primitive\OctetString; |
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use ASN1\Type\Tagged\ImplicitlyTaggedType; |
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use ASN1\Type\UnspecifiedType; |
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/** |
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* Implements <i>iPAddress</i> CHOICE type of <i>GeneralName</i>. |
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* |
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* Concrete classes <code>IPv4Address</code> and <code>IPv6Address</code> |
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* furthermore implement the parsing semantics. |
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* |
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* @link 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 $_ip |
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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 string|null $_mask |
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*/ |
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protected $_mask; |
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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(); |
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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 string|null $mask |
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*/ |
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public function __construct($ip, $mask = null) { |
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$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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* |
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* @param UnspecifiedType $el |
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* @return self |
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*/ |
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public static function fromChosenASN1(UnspecifiedType $el) { |
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$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($octets); |
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case 16: |
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case 32: |
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return IPv6Address::fromOctets($octets); |
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1 |
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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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1 |
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} |
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} |
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public function string() { |
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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() { |
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3 |
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return $this->_ip; |
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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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* @return string |
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*/ |
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public function mask() { |
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return $this->_mask; |
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} |
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protected function _choiceASN1() { |
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return new ImplicitlyTaggedType($this->_tag, |
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new OctetString($this->_octets())); |
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} |
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} |
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sop /
x509
