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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\XMLSecurity\XML\ds; |
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use DOMElement; |
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use SimpleSAML\Assert\Assert; |
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use SimpleSAML\XML\ExtendableElementTrait; |
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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\TooManyElementsException; |
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use SimpleSAML\XMLSchema\Type\AnyURIValue; |
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use SimpleSAML\XMLSchema\XML\Constants\NS; |
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use SimpleSAML\XMLSecurity\Constants as C; |
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use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException; |
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use function array_keys; |
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use function array_merge; |
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use function array_pop; |
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use function strval; |
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/** |
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* Class representing a ds:SignatureMethod element. |
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* |
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* @package simplesamlphp/xml-security |
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*/ |
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final class SignatureMethod extends AbstractDsElement implements SchemaValidatableElementInterface |
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{ |
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use ExtendableElementTrait; |
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use SchemaValidatableElementTrait; |
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/** The namespace-attribute for the xs:any element */ |
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public const XS_ANY_ELT_NAMESPACE = NS::OTHER; |
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/** |
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* Initialize a SignatureMethod element. |
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* |
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* @param \SimpleSAML\XMLSchema\Type\AnyURIValue $Algorithm |
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* @param \SimpleSAML\XMLSecurity\XML\ds\HMACOutputLength|null $hmacOutputLength |
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* @param array<\SimpleSAML\XML\SerializableElementInterface> $children |
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*/ |
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public function __construct( |
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protected AnyURIValue $Algorithm, |
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protected ?HMACOutputLength $hmacOutputLength = null, |
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array $children = [], |
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) { |
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Assert::oneOf( |
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$Algorithm->getValue(), |
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array_merge( |
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array_keys(C::$RSA_DIGESTS), |
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array_keys(C::$HMAC_DIGESTS), |
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), |
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'Invalid signature method: %s', |
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InvalidArgumentException::class, |
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); |
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$this->setElements($children); |
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} |
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/** |
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* Collect the value of the Algorithm-property |
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* |
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* @return \SimpleSAML\XMLSchema\Type\AnyURIValue |
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*/ |
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public function getAlgorithm(): AnyURIValue |
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{ |
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return $this->Algorithm; |
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} |
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/** |
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* Collect the value of the hmacOutputLength-property |
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* |
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* @return \SimpleSAML\XMLSecurity\XML\ds\HMACOutputLength|null |
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*/ |
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public function getHMACOutputLength(): ?HMACOutputLength |
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{ |
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return $this->hmacOutputLength; |
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} |
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/** |
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* Convert XML into a SignatureMethod |
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* |
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* @param \DOMElement $xml The XML element we should load |
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* @return static |
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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, 'SignatureMethod', InvalidDOMElementException::class); |
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Assert::same($xml->namespaceURI, SignatureMethod::NS, InvalidDOMElementException::class); |
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$Algorithm = self::getAttribute($xml, 'Algorithm', AnyURIValue::class); |
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$hmacOutputLength = HMACOutputLength::getChildrenOfClass($xml); |
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Assert::maxCount($hmacOutputLength, 1, TooManyElementsException::class); |
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return new static($Algorithm, array_pop($hmacOutputLength), self::getChildElementsFromXML($xml)); |
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} |
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/** |
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* Convert this SignatureMethod element to XML. |
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* |
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* @param \DOMElement|null $parent The element we should append this SignatureMethod element to. |
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* @return \DOMElement |
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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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$e->setAttribute('Algorithm', strval($this->getAlgorithm())); |
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$this->getHMACOutputLength()?->toXML($e); |
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foreach ($this->getElements() as $elt) { |
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$elt->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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