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<?php |
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declare(strict_types=1); |
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namespace X509\AttributeCertificate\Attribute; |
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use ASN1\Element; |
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use ASN1\Type\UnspecifiedType; |
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use ASN1\Type\Primitive\ObjectIdentifier; |
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use ASN1\Type\Primitive\OctetString; |
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use ASN1\Type\Primitive\UTF8String; |
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/** |
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* Implements <i>IetfAttrSyntax.values</i> ASN.1 CHOICE type. |
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* |
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* @link https://tools.ietf.org/html/rfc5755#section-4.4 |
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*/ |
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class IetfAttrValue |
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{ |
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/** |
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* Element type tag. |
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* |
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* @var int $_type |
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*/ |
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protected $_type; |
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/** |
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* Value. |
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* |
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* @var string $_value |
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*/ |
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protected $_value; |
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/** |
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* Constructor. |
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* |
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* @param string $value |
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* @param int $type |
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*/ |
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public function __construct(string $value, int $type) |
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{ |
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$this->_type = $type; |
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$this->_value = $value; |
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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 UnspecifiedType $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(UnspecifiedType $el) |
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{ |
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switch ($el->tag()) { |
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case Element::TYPE_OCTET_STRING: |
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case Element::TYPE_UTF8_STRING: |
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return new self($el->asString()->string(), $el->tag()); |
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case Element::TYPE_OBJECT_IDENTIFIER: |
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return new self($el->asObjectIdentifier()->oid(), $el->tag()); |
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} |
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throw new \UnexpectedValueException( |
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"Type " . Element::tagToName($el->tag()) . " not supported."); |
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} |
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/** |
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* Initialize from octet string. |
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* |
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* @param string $octets |
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* @return self |
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*/ |
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public static function fromOctets(string $octets) |
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{ |
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return new self($octets, Element::TYPE_OCTET_STRING); |
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} |
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/** |
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* Initialize from UTF-8 string. |
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* |
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* @param string $str |
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* @return self |
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*/ |
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public static function fromString(string $str) |
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{ |
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return new self($str, Element::TYPE_UTF8_STRING); |
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} |
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/** |
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* Initialize from OID. |
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* |
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* @param string $oid |
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* @return self |
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*/ |
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public static function fromOID(string $oid) |
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{ |
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return new self($oid, Element::TYPE_OBJECT_IDENTIFIER); |
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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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public function type(): int |
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{ |
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return $this->_type; |
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} |
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/** |
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* Whether value type is octets. |
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* |
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* @return bool |
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*/ |
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public function isOctets(): bool |
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{ |
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return $this->_type === Element::TYPE_OCTET_STRING; |
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} |
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/** |
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* Whether value type is OID. |
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* |
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* @return bool |
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*/ |
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public function isOID(): bool |
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{ |
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return $this->_type === Element::TYPE_OBJECT_IDENTIFIER; |
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} |
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/** |
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* Whether value type is string. |
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* |
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* @return bool |
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*/ |
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public function isString(): bool |
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{ |
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return $this->_type === Element::TYPE_UTF8_STRING; |
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} |
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/** |
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* Get value. |
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* |
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* @return string |
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*/ |
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public function value(): string |
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{ |
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return $this->_value; |
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} |
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/** |
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* Generate ASN.1 structure. |
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* |
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* @throws \LogicException |
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* @return Element |
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*/ |
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public function toASN1(): Element |
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{ |
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switch ($this->_type) { |
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case Element::TYPE_OCTET_STRING: |
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return new OctetString($this->_value); |
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case Element::TYPE_UTF8_STRING: |
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return new UTF8String($this->_value); |
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case Element::TYPE_OBJECT_IDENTIFIER: |
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return new ObjectIdentifier($this->_value); |
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} |
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throw new \LogicException( |
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"Type " . Element::tagToName($this->_type) . " not supported."); |
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} |
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/** |
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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->_value; |
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} |
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} |
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sop /
x509
