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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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use SimpleSAML\XML\Constants; |
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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 $elements = []; |
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/** |
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* Set an array with all elements present. |
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* |
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* @param array \SimpleSAML\XML\XMLElementInterface[] |
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*/ |
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public function setElements(array $elements): void |
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{ |
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Assert::allIsInstanceOf($elements, XMLElementInterface::class); |
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$namespace = $this->getNamespace(); |
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// Validate namespace value |
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Assert::true(is_array($namespace) || is_string($namespace)); |
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if (!is_array($namespace)) { |
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// Must be one of the predefined values |
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Assert::oneOf($namespace, Constants::XS_ANY_NS); |
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} else { |
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// Array must be non-empty and cannot contain ##any or ##other |
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Assert::notEmpty($namespace); |
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Assert::allNotSame($namespace, Constants::XS_ANY_NS_ANY); |
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Assert::allNotSame($namespace, Constants::XS_ANY_NS_OTHER); |
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} |
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// Get namespaces for all elements |
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$actual_namespaces = array_map( |
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function($elt) { |
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return $elt->getNamespaceURI(); |
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}, |
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$elements |
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); |
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if ($namespace === Constants::XS_ANY_NS_LOCAL) { |
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// If ##local then all namespaces must be null |
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Assert::allNull($actual_namespaces); |
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} elseif (is_array($namespace)) { |
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// Make a local copy of the property that we can edit |
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$allowed_namespaces = $namespace; |
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// Replace the ##targetedNamespace with the actual namespace |
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if (($key = array_search(Constants::XS_ANY_NS_TARGET, $allowed_namespaces)) !== false) { |
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$allowed_namespaces[$key] = static::NS; |
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} |
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// Replace the ##local with null |
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if (($key = array_search(Constants::XS_ANY_NS_LOCAL, $allowed_namespaces)) !== false) { |
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$allowed_namespaces[$key] = null; |
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} |
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$diff = array_diff($actual_namespaces, $allowed_namespaces); |
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Assert::isEmpty( |
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$diff, |
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sprintf( |
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'Elements from namespaces [ %s ] are not allowed inside a %s element.', |
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rtrim(implode(', ', $diff)), |
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static::NS |
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) |
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); |
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} else { |
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// All elements must be namespaced, ergo non-null |
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Assert::allNotNull($actual_namespaces); |
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if ($namespace === Constants::XS_ANY_NS_OTHER) { |
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// Must be any namespace other than the parent element |
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Assert::allNotSame($actual_namespaces, static::NS); |
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} elseif ($namespace === Constants::XS_ANY_NS_TARGET) { |
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// Must be the same namespace as the one of the parent element |
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Assert::allSame($actual_namespaces, static::NS); |
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} |
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} |
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$this->elements = $elements; |
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} |
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/** |
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* Get an array with all elements present. |
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* |
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* @return \SimpleSAML\XML\XMLElementInterface[] |
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*/ |
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public function getElements(): array |
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{ |
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return $this->elements; |
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} |
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/** |
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* @return array|string |
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*/ |
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abstract public function getNamespace(); |
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} |
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simplesamlphp /
xml-common
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