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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\XMLSchema\Exception\InvalidDOMElementException; |
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use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException; |
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use SimpleSAML\XMLSecurity\XML\ds\Transform; |
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/** |
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* Class representing a xenc:Transforms element. |
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* |
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* @package simplesamlphp/xml-security |
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*/ |
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final class Transforms extends AbstractXencElement |
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{ |
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/** |
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* Initialize a xenc:Transforms |
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* |
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* @param \SimpleSAML\XMLSecurity\XML\ds\Transform[] $transform |
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*/ |
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public function __construct( |
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protected array $transform, |
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) { |
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Assert::maxCount($transform, C::UNBOUNDED_LIMIT); |
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Assert::allIsInstanceOf($transform, Transform::class, InvalidArgumentException::class); |
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} |
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/** |
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* @return \SimpleSAML\XMLSecurity\XML\ds\Transform[] |
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*/ |
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public function getTransform(): array |
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{ |
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return $this->transform; |
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} |
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/** |
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* Test if an object, at the state it's in, would produce an empty XML-element |
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* |
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* @return bool |
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*/ |
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public function isEmptyElement(): bool |
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{ |
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return empty($this->transform); |
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} |
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/** |
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* Convert XML into a Transforms element |
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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, 'Transforms', InvalidDOMElementException::class); |
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Assert::same($xml->namespaceURI, Transforms::NS, InvalidDOMElementException::class); |
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$transform = Transform::getChildrenOfClass($xml); |
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return new static($transform); |
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} |
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/** |
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* Convert this Transforms element to XML. |
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* |
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* @param \DOMElement|null $parent The element we should append this Transforms 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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foreach ($this->getTransform() as $t) { |
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if (!$t->isEmptyElement()) { |
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$t->toXML($e); |
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} |
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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
