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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\XMLSecurity\XML; |
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use DOMElement; |
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use SimpleSAML\Assert\Assert; |
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use SimpleSAML\XML\AbstractXMLElement; |
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use SimpleSAML\XML\Exception\MissingElementException; |
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use SimpleSAML\XML\Exception\TooManyElementsException; |
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use SimpleSAML\XMLSecurity\XML\ds\Signature; |
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use function array_pop; |
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/** |
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* Abstract class to be implemented by all signed classes |
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* |
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* @package simplesamlphp/xml-security |
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*/ |
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abstract class AbstractSignedXMLElement extends AbstractXMLElement implements SignedElementInterface |
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{ |
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use SignedElementTrait; |
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/** |
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* The signed DOM structure. |
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* |
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* @var \DOMElement |
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*/ |
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protected DOMElement $structure; |
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/** |
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* The unsigned elelement. |
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* |
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* @var \SimpleSAML\XMLSecurity\XML\SignableElementInterface |
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*/ |
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protected SignableElementInterface $element; |
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/** |
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* Create/parse an alg:SigningMethod element. |
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* |
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* @param \DOMElement $xml |
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* @param \SimpleSAML\XMLSecurity\XML\ds\Signature $signature |
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*/ |
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public function __construct(DOMElement $xml, Signature $signature) |
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{ |
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$this->setStructure($xml); |
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$this->setSignature($signature); |
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} |
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/** |
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* Output the class as an XML-formatted string |
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* |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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return $this->structure->ownerDocument->saveXML(); |
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} |
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/** |
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* Set the value of the structure-property |
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* |
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* @param \DOMElement $structure |
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*/ |
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private function setStructure(DOMElement $structure): void |
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{ |
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$this->structure = $structure; |
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} |
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/** |
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* Create XML from this class |
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* |
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* @param \DOMElement|null $parent |
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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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return $this->structure; |
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} |
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/** |
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* Create a class from XML |
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* |
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* @param \DOMElement $xml |
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* @return self |
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*/ |
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public static function fromXML(DOMElement $xml): object |
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{ |
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$original = $xml->ownerDocument->cloneNode(true); |
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$signature = Signature::getChildrenOfClass($xml); |
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Assert::minCount($signature, 1, MissingElementException::class); |
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Assert::maxCount($signature, 1, TooManyElementsException::class); |
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return new static($original->documentElement, array_pop($signature)); |
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} |
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} |
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simplesamlphp /
xml-security
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