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<?php |
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declare(strict_types = 1); |
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namespace X509\GeneralName; |
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use ASN1\Element; |
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use ASN1\Type\TaggedType; |
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use ASN1\Type\UnspecifiedType; |
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/** |
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* Implements <i>GeneralName</i> CHOICE with implicit tagging. |
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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 GeneralName |
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{ |
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// GeneralName CHOICE tags |
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const TAG_OTHER_NAME = 0; |
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const TAG_RFC822_NAME = 1; |
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const TAG_DNS_NAME = 2; |
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const TAG_X400_ADDRESS = 3; |
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const TAG_DIRECTORY_NAME = 4; |
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const TAG_EDI_PARTY_NAME = 5; |
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const TAG_URI = 6; |
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const TAG_IP_ADDRESS = 7; |
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const TAG_REGISTERED_ID = 8; |
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/** |
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* Chosen tag. |
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* |
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* @var int $_tag |
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*/ |
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protected $_tag; |
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/** |
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* Get string value of the type. |
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* |
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* @return string |
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*/ |
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abstract public function string(): string; |
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/** |
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* Get ASN.1 value in GeneralName CHOICE context. |
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* |
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* @return TaggedType |
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*/ |
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abstract protected function _choiceASN1(): TaggedType; |
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/** |
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* Initialize concrete object from the chosen ASN.1 element. |
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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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{ |
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throw new \BadMethodCallException( |
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__FUNCTION__ . " must be implemented in the derived class."); |
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} |
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/** |
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* Initialize from ASN.1. |
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* |
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* @param TaggedType $el |
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* @throws \UnexpectedValueException |
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* @return self |
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*/ |
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public static function fromASN1(TaggedType $el): self |
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{ |
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switch ($el->tag()) { |
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// otherName |
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case self::TAG_OTHER_NAME: |
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return OtherName::fromChosenASN1( |
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$el->asImplicit(Element::TYPE_SEQUENCE)); |
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// rfc822Name |
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case self::TAG_RFC822_NAME: |
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return RFC822Name::fromChosenASN1( |
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$el->asImplicit(Element::TYPE_IA5_STRING)); |
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// dNSName |
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case self::TAG_DNS_NAME: |
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return DNSName::fromChosenASN1( |
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$el->asImplicit(Element::TYPE_IA5_STRING)); |
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// x400Address |
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case self::TAG_X400_ADDRESS: |
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return X400Address::fromChosenASN1( |
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$el->asImplicit(Element::TYPE_SEQUENCE)); |
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// directoryName |
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case self::TAG_DIRECTORY_NAME: |
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// because Name is a CHOICE, albeit having only one option, |
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// explicit tagging must be used |
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// (see X.680 07/2002 30.6.c) |
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return DirectoryName::fromChosenASN1($el->asExplicit()); |
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// ediPartyName |
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case self::TAG_EDI_PARTY_NAME: |
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return EDIPartyName::fromChosenASN1( |
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$el->asImplicit(Element::TYPE_SEQUENCE)); |
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// uniformResourceIdentifier |
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case self::TAG_URI: |
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return UniformResourceIdentifier::fromChosenASN1( |
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$el->asImplicit(Element::TYPE_IA5_STRING)); |
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// iPAddress |
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case self::TAG_IP_ADDRESS: |
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return IPAddress::fromChosenASN1( |
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$el->asImplicit(Element::TYPE_OCTET_STRING)); |
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// registeredID |
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case self::TAG_REGISTERED_ID: |
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return RegisteredID::fromChosenASN1( |
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$el->asImplicit(Element::TYPE_OBJECT_IDENTIFIER)); |
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} |
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throw new \UnexpectedValueException( |
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"GeneralName type " . $el->tag() . " not supported."); |
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} |
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/** |
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* Get type tag. |
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* |
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* @return int |
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*/ |
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58 |
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public function tag(): int |
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{ |
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return $this->_tag; |
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} |
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/** |
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* Generate ASN.1 element. |
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* |
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* @return Element |
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*/ |
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public function toASN1(): Element |
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{ |
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return $this->_choiceASN1(); |
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} |
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/** |
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* Check whether GeneralName is equal to other. |
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* |
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* @param GeneralName $other GeneralName to compare to |
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* @return boolean True if names are equal |
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*/ |
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public function equals(GeneralName $other): bool |
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{ |
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if ($this->_tag != $other->_tag) { |
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return false; |
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} |
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if ($this->_choiceASN1()->toDER() != $other->_choiceASN1()->toDER()) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Get general name as a string. |
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* |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return $this->string(); |
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} |
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} |
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et-nik /
x509
