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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\XMLSecurity\XML\xenc; |
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use DOMElement; |
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use SimpleSAML\Assert\Assert; |
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use SimpleSAML\XML\Constants as C; |
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use SimpleSAML\XML\SchemaValidatableElementInterface; |
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use SimpleSAML\XML\SchemaValidatableElementTrait; |
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use SimpleSAML\XMLSchema\Exception\InvalidDOMElementException; |
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use SimpleSAML\XMLSchema\Exception\MissingElementException; |
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use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException; |
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use function array_merge; |
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/** |
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* A class containing a list of references to either encrypted data or encryption keys. |
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* |
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* @package simplesamlphp/xml-security |
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*/ |
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class ReferenceList extends AbstractXencElement implements SchemaValidatableElementInterface |
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{ |
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use SchemaValidatableElementTrait; |
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/** |
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* ReferenceList constructor. |
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* |
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* @param \SimpleSAML\XMLSecurity\XML\xenc\DataReference[] $dataReferences |
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* @param \SimpleSAML\XMLSecurity\XML\xenc\KeyReference[] $keyReferences |
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*/ |
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final public function __construct( |
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protected array $dataReferences, |
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protected array $keyReferences = [], |
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) { |
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Assert::maxCount($dataReferences, C::UNBOUNDED_LIMIT); |
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Assert::maxCount($keyReferences, C::UNBOUNDED_LIMIT); |
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Assert::minCount( |
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array_merge($dataReferences, $keyReferences), |
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1, |
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'At least one <xenc:DataReference> or <xenc:KeyReference> element required in <xenc:ReferenceList>.', |
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MissingElementException::class, |
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); |
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Assert::allIsInstanceOf( |
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$dataReferences, |
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DataReference::class, |
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'All data references must be an instance of <xenc:DataReference>.', |
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InvalidArgumentException::class, |
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); |
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Assert::allIsInstanceOf( |
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$keyReferences, |
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KeyReference::class, |
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'All key references must be an instance of <xenc:KeyReference>.', |
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InvalidArgumentException::class, |
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); |
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} |
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/** |
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* Get the list of DataReference objects. |
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* |
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* @return \SimpleSAML\XMLSecurity\XML\xenc\DataReference[] |
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*/ |
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public function getDataReferences(): array |
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{ |
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return $this->dataReferences; |
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} |
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/** |
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* Get the list of KeyReference objects. |
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* |
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* @return \SimpleSAML\XMLSecurity\XML\xenc\KeyReference[] |
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*/ |
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public function getKeyReferences(): array |
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{ |
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return $this->keyReferences; |
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} |
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/** |
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* @inheritDoc |
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* |
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* @throws \SimpleSAML\XMLSchema\Exception\InvalidDOMElementException |
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* If the qualified name of the supplied element is wrong |
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*/ |
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public static function fromXML(DOMElement $xml): static |
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{ |
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Assert::same($xml->localName, 'ReferenceList', InvalidDOMElementException::class); |
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Assert::same($xml->namespaceURI, ReferenceList::NS, InvalidDOMElementException::class); |
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$dataReferences = DataReference::getChildrenOfClass($xml); |
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$keyReferences = KeyReference::getChildrenOfClass($xml); |
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return new static($dataReferences, $keyReferences); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function toXML(?DOMElement $parent = null): DOMElement |
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{ |
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$e = $this->instantiateParentElement($parent); |
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foreach ($this->getDataReferences() as $dref) { |
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$dref->toXML($e); |
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} |
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foreach ($this->getKeyReferences() as $kref) { |
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$kref->toXML($e); |
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} |
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return $e; |
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} |
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} |
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simplesamlphp /
xml-security
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