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<?php |
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declare(strict_types = 1); |
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namespace X509\Certificate\Extension; |
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use ASN1\Type\UnspecifiedType; |
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use ASN1\Type\Constructed\Sequence; |
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use ASN1\Type\Primitive\ObjectIdentifier; |
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/** |
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* Implements 'Extended Key Usage' certificate extension. |
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* |
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* @link https://tools.ietf.org/html/rfc5280#section-4.2.1.12 |
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*/ |
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class ExtendedKeyUsageExtension extends Extension implements |
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\Countable, |
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\IteratorAggregate |
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{ |
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const OID_SERVER_AUTH = "1.3.6.1.5.5.7.3.1"; |
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const OID_CLIENT_AUTH = "1.3.6.1.5.5.7.3.2"; |
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const OID_CODE_SIGNING = "1.3.6.1.5.5.7.3.3"; |
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const OID_EMAIL_PROTECTION = "1.3.6.1.5.5.7.3.4"; |
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const OID_IPSEC_END_SYSTEM = "1.3.6.1.5.5.7.3.5"; |
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const OID_IPSEC_TUNNEL = "1.3.6.1.5.5.7.3.6"; |
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const OID_IPSEC_USER = "1.3.6.1.5.5.7.3.7"; |
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const OID_TIME_STAMPING = "1.3.6.1.5.5.7.3.8"; |
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const OID_OCSP_SIGNING = "1.3.6.1.5.5.7.3.9"; |
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const OID_DVCS = "1.3.6.1.5.5.7.3.10"; |
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const OID_SBGP_CERT_AA_SERVER_AUTH = "1.3.6.1.5.5.7.3.11"; |
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const OID_SCVP_RESPONDER = "1.3.6.1.5.5.7.3.12"; |
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const OID_EAP_OVER_PPP = "1.3.6.1.5.5.7.3.13"; |
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const OID_EAP_OVER_LAN = "1.3.6.1.5.5.7.3.14"; |
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const OID_SCVP_SERVER = "1.3.6.1.5.5.7.3.15"; |
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const OID_SCVP_CLIENT = "1.3.6.1.5.5.7.3.16"; |
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const OID_IPSEC_IKE = "1.3.6.1.5.5.7.3.17"; |
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const OID_CAPWAP_AC = "1.3.6.1.5.5.7.3.18"; |
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const OID_CAPWAP_WTP = "1.3.6.1.5.5.7.3.19"; |
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const OID_SIP_DOMAIN = "1.3.6.1.5.5.7.3.20"; |
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const OID_SECURE_SHELL_CLIENT = "1.3.6.1.5.5.7.3.21"; |
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const OID_SECURE_SHELL_SERVER = "1.3.6.1.5.5.7.3.22"; |
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const OID_SEND_ROUTER = "1.3.6.1.5.5.7.3.23"; |
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const OID_SEND_PROXY = "1.3.6.1.5.5.7.3.24"; |
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const OID_SEND_OWNER = "1.3.6.1.5.5.7.3.25"; |
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const OID_SEND_PROXIED_OWNER = "1.3.6.1.5.5.7.3.26"; |
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const OID_CMC_CA = "1.3.6.1.5.5.7.3.27"; |
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const OID_CMC_RA = "1.3.6.1.5.5.7.3.28"; |
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const OID_CMC_ARCHIVE = "1.3.6.1.5.5.7.3.29"; |
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/** |
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* Purpose OID's. |
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* |
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* @var string[] $_purposes |
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*/ |
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protected $_purposes; |
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/** |
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* Constructor. |
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* |
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* @param bool $critical |
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* @param string ...$purposes |
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*/ |
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public function __construct(bool $critical, string ...$purposes) |
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{ |
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parent::__construct(self::OID_EXT_KEY_USAGE, $critical); |
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$this->_purposes = $purposes; |
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} |
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/** |
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* |
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* {@inheritdoc} |
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* @return self |
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*/ |
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protected static function _fromDER(string $data, bool $critical): self |
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{ |
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$purposes = array_map( |
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function (UnspecifiedType $el) { |
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return $el->asObjectIdentifier()->oid(); |
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}, UnspecifiedType::fromDER($data)->asSequence()->elements()); |
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return new self($critical, ...$purposes); |
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} |
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/** |
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* Whether purposes are present. |
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* |
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* If multiple purposes are checked, all must be present. |
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* |
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* @param string ...$oids |
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* @return bool |
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*/ |
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public function has(string ...$oids): bool |
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{ |
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foreach ($oids as $oid) { |
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if (!in_array($oid, $this->_purposes)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* Get key usage purpose OID's. |
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* |
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* @return string[] |
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*/ |
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public function purposes(): array |
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{ |
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return $this->_purposes; |
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} |
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/** |
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* |
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* {@inheritdoc} |
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* @return Sequence |
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*/ |
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protected function _valueASN1(): Sequence |
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{ |
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$elements = array_map( |
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function ($oid) { |
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return new ObjectIdentifier($oid); |
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}, $this->_purposes); |
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return new Sequence(...$elements); |
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} |
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/** |
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* Get the number of purposes. |
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* |
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* @see \Countable::count() |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return count($this->_purposes); |
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} |
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/** |
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* Get iterator for usage purposes. |
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* |
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* @see \IteratorAggregate::getIterator() |
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* @return \ArrayIterator |
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*/ |
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public function getIterator(): \ArrayIterator |
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{ |
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return new \ArrayIterator($this->_purposes); |
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} |
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} |
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