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<?php |
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declare(strict_types = 1); |
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namespace X509\Certificate\Extension\CertificatePolicy; |
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use ASN1\Element; |
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use ASN1\Type\StringType; |
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use ASN1\Type\Primitive\BMPString; |
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use ASN1\Type\Primitive\IA5String; |
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use ASN1\Type\Primitive\UTF8String; |
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use ASN1\Type\Primitive\VisibleString; |
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/** |
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* Implements <i>DisplayText</i> ASN.1 CHOICE type used by |
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* 'Certificate Policies' certificate extension. |
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* |
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* @link https://tools.ietf.org/html/rfc5280#section-4.2.1.4 |
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*/ |
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class DisplayText |
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{ |
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/** |
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* Text. |
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* |
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* @var string $_text |
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*/ |
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protected $_text; |
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/** |
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* Element 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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* Constructor. |
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* |
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* @param string $text |
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* @param int $tag |
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*/ |
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public function __construct(string $text, int $tag) |
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{ |
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$this->_text = $text; |
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$this->_tag = $tag; |
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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 StringType $el |
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* @return self |
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*/ |
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public static function fromASN1(StringType $el): self |
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{ |
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return new self($el->string(), $el->tag()); |
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} |
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/** |
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* Initialize from a 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 $str): self |
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{ |
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return new self($str, Element::TYPE_UTF8_STRING); |
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} |
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/** |
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* Get the text. |
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* |
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* @return string |
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*/ |
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public function string(): string |
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{ |
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return $this->_text; |
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} |
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/** |
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* Generate ASN.1 element. |
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* |
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* @throws \UnexpectedValueException |
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* @return StringType |
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*/ |
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public function toASN1(): StringType |
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{ |
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switch ($this->_tag) { |
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case Element::TYPE_IA5_STRING: |
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return new IA5String($this->_text); |
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case Element::TYPE_VISIBLE_STRING: |
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return new VisibleString($this->_text); |
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case Element::TYPE_BMP_STRING: |
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return new BMPString($this->_text); |
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case Element::TYPE_UTF8_STRING: |
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return new UTF8String($this->_text); |
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default: |
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throw new \UnexpectedValueException( |
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"Type " . Element::tagToName($this->_tag) . " not supported."); |
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} |
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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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3 |
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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
