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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\XML; |
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use DOMElement; |
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use SimpleSAML\Assert\Assert; |
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/** |
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* Trait grouping common functionality for elements implementing the xs:any element. |
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* |
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* @package simplesamlphp/xml-common |
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*/ |
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trait ExtendableElementTrait |
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{ |
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/** @var \SimpleSAML\XML\XMLElementInterface[] */ |
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protected array $extensions = []; |
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/** |
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* Extensions constructor. |
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* |
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* @var \SimpleSAML\XML\XMLElementInterface[] |
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*/ |
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public function __construct(array $extensions) |
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{ |
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$this->setList($extensions); |
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} |
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/** |
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* Set an array with all extensions present. |
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* |
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* @param array \SimpleSAML\XML\XMLElementInterface[] |
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*/ |
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public function setList(array $extensions): void |
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{ |
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Assert::allIsInstanceOf($extensions, XMLElementInterface::class); |
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$this->extensions = $extensions; |
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} |
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/** |
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* Get an array with all extensions present. |
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* |
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* @return \SimpleSAML\XML\XMLElementInterface[] |
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*/ |
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public function getList(): array |
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{ |
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return $this->extensions; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isEmptyElement(): bool |
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{ |
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if (empty($this->extensions)) { |
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return true; |
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} |
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$empty = false; |
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foreach ($this->extensions as $extension) { |
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$empty &= $extension->isEmptyElement(); |
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} |
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return boolval($empty); |
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} |
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/** |
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* Convert this object into its md:Extensions XML representation. |
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* |
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* @param \DOMElement|null $parent The element we should add this Extensions element to. |
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* @return \DOMElement The new md:Extensions XML element. |
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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->extensions as $extension) { |
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if (!$extension->isEmptyElement()) { |
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$extension->toXML($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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* @param \DOMElement|null $parent |
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* @return \DOMElement |
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*/ |
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abstract public function instantiateParentElement(DOMElement $parent = null): DOMElement; |
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} |
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simplesamlphp /
xml-common
