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<?php |
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declare(strict_types = 1); |
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namespace Sop\X509\Certificate\Extension; |
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use Sop\ASN1\Element; |
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use Sop\ASN1\Type\Constructed\Sequence; |
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use Sop\ASN1\Type\UnspecifiedType; |
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use Sop\X509\Certificate\Extension\CertificatePolicy\PolicyInformation; |
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/** |
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* Implements 'Certificate Policies' certificate extension. |
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* |
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* @see https://tools.ietf.org/html/rfc5280#section-4.2.1.4 |
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*/ |
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class CertificatePoliciesExtension extends Extension implements \Countable, \IteratorAggregate |
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{ |
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/** |
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* Policy information terms. |
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* |
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* @var PolicyInformation[] |
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*/ |
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protected $_policies; |
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/** |
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* Constructor. |
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* |
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* @param bool $critical |
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* @param PolicyInformation ...$policies |
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*/ |
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public function __construct(bool $critical, PolicyInformation ...$policies) |
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{ |
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parent::__construct(Extension::OID_CERTIFICATE_POLICIES, $critical); |
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$this->_policies = []; |
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foreach ($policies as $policy) { |
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$this->_policies[$policy->oid()] = $policy; |
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} |
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} |
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/** |
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* Check whether policy information by OID is present. |
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* |
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* @param string $oid |
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* |
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* @return bool |
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*/ |
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public function has(string $oid): bool |
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{ |
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return isset($this->_policies[$oid]); |
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} |
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/** |
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* Get policy information by OID. |
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* |
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* @param string $oid |
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* |
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* @throws \LogicException If not set |
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* |
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* @return PolicyInformation |
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*/ |
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public function get(string $oid): PolicyInformation |
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{ |
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if (!$this->has($oid)) { |
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throw new \LogicException("Not certificate policy by OID {$oid}."); |
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} |
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return $this->_policies[$oid]; |
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} |
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/** |
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* Check whether anyPolicy is present. |
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* |
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* @return bool |
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*/ |
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public function hasAnyPolicy(): bool |
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{ |
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return $this->has(PolicyInformation::OID_ANY_POLICY); |
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} |
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/** |
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* Get anyPolicy information. |
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* |
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* @throws \LogicException if anyPolicy is not present |
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* |
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* @return PolicyInformation |
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*/ |
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public function anyPolicy(): PolicyInformation |
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{ |
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if (!$this->hasAnyPolicy()) { |
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throw new \LogicException('No anyPolicy.'); |
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} |
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return $this->get(PolicyInformation::OID_ANY_POLICY); |
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} |
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/** |
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* Get the number of policies. |
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* |
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* @see \Countable::count() |
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* |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return count($this->_policies); |
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} |
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/** |
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* Get iterator for policy information terms. |
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* |
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* @see \IteratorAggregate::getIterator() |
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* |
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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->_policies); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected static function _fromDER(string $data, bool $critical): Extension |
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{ |
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$policies = array_map( |
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function (UnspecifiedType $el) { |
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return PolicyInformation::fromASN1($el->asSequence()); |
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}, UnspecifiedType::fromDER($data)->asSequence()->elements()); |
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if (!count($policies)) { |
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throw new \UnexpectedValueException( |
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'certificatePolicies must contain at least one PolicyInformation.'); |
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} |
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return new self($critical, ...$policies); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function _valueASN1(): Element |
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{ |
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if (!count($this->_policies)) { |
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throw new \LogicException('No policies.'); |
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} |
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$elements = array_map( |
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function (PolicyInformation $pi) { |
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return $pi->toASN1(); |
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}, array_values($this->_policies)); |
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return new Sequence(...$elements); |
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} |
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} |
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sop /
x509
