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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\DistributionPoint\DistributionPoint; |
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/** |
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* Implements 'CRL Distribution Points' certificate extension. |
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* |
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* @see https://tools.ietf.org/html/rfc5280#section-4.2.1.13 |
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*/ |
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class CRLDistributionPointsExtension extends Extension implements \Countable, \IteratorAggregate |
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{ |
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/** |
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* Distribution points. |
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* |
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* @var DistributionPoint[] |
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*/ |
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protected $_distributionPoints; |
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/** |
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* Constructor. |
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* |
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* @param bool $critical |
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* @param DistributionPoint ...$distribution_points |
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*/ |
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public function __construct(bool $critical, |
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DistributionPoint ...$distribution_points) |
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{ |
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parent::__construct(self::OID_CRL_DISTRIBUTION_POINTS, $critical); |
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$this->_distributionPoints = $distribution_points; |
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} |
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/** |
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* Get distribution points. |
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* |
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* @return DistributionPoint[] |
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*/ |
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public function distributionPoints(): array |
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{ |
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return $this->_distributionPoints; |
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} |
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/** |
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* Get the number of distribution points. |
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* |
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* @see \Countable::count() |
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* |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return count($this->_distributionPoints); |
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} |
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/** |
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* Get iterator for distribution points. |
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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->_distributionPoints); |
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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 $critical): Extension |
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{ |
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$dps = array_map( |
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function (UnspecifiedType $el) { |
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return DistributionPoint::fromASN1($el->asSequence()); |
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}, UnspecifiedType::fromDER($data)->asSequence()->elements()); |
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if (!count($dps)) { |
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throw new \UnexpectedValueException( |
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'CRLDistributionPoints must have at least one DistributionPoint.'); |
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} |
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// late static bound, extended by Freshest CRL extension |
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return new static($critical, ...$dps); |
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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($this->_distributionPoints)) { |
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throw new \LogicException('No distribution points.'); |
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} |
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$elements = array_map( |
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function (DistributionPoint $dp) { |
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return $dp->toASN1(); |
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}, $this->_distributionPoints); |
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return new Sequence(...$elements); |
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} |
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} |
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sop /
x509
