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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\SAML2\XML\saml; |
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use DOMElement; |
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use SimpleSAML\Assert\Assert; |
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use SimpleSAML\SAML2\Compat\ContainerSingleton; |
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use SimpleSAML\SAML2\Constants as C; |
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use SimpleSAML\SAML2\Utils; |
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use SimpleSAML\SAML2\XML\ExtensionPointInterface; |
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use SimpleSAML\SAML2\XML\ExtensionPointTrait; |
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use SimpleSAML\SAML2\XML\IDNameQualifiersTrait; |
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use SimpleSAML\XML\Chunk; |
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use SimpleSAML\XML\Exception\InvalidDOMElementException; |
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use SimpleSAML\XML\Exception\SchemaViolationException; |
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use SimpleSAML\XMLSecurity\Backend\EncryptionBackend; |
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use SimpleSAML\XMLSecurity\XML\EncryptableElementInterface; |
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use SimpleSAML\XMLSecurity\XML\EncryptableElementTrait; |
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use function count; |
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use function explode; |
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/** |
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* SAML BaseID data type. |
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* |
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* @package simplesamlphp/saml2 |
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*/ |
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abstract class AbstractBaseID extends AbstractSamlElement implements |
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BaseIdentifierInterface, |
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EncryptableElementInterface, |
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ExtensionPointInterface |
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{ |
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use EncryptableElementTrait; |
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use ExtensionPointTrait; |
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use IDNameQualifiersTrait; |
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/** @var string */ |
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public const LOCALNAME = 'BaseID'; |
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/** @var string */ |
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protected string $type; |
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/** |
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* Initialize a saml:BaseID from scratch |
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* |
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* @param string $type |
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* @param string|null $NameQualifier |
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* @param string|null $SPNameQualifier |
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*/ |
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protected function __construct( |
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string $type, |
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?string $NameQualifier = null, |
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?string $SPNameQualifier = null |
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) { |
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$this->type = $type; |
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$this->setNameQualifier($NameQualifier); |
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$this->setSPNameQualifier($SPNameQualifier); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getXsiType(): string |
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{ |
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return $this->type; |
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} |
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public function getBlacklistedAlgorithms(): ?array |
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{ |
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$container = ContainerSingleton::getInstance(); |
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return $container->getBlacklistedEncryptionAlgorithms(); |
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} |
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public function getEncryptionBackend(): ?EncryptionBackend |
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{ |
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// return the encryption backend you want to use, |
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// or null if you are fine with the default |
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return null; |
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} |
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/** |
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* Convert XML into an BaseID |
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* |
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* @param \DOMElement $xml The XML element we should load |
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* @return \SimpleSAML\SAML2\XML\saml\BaseIdentifierInterface |
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* |
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* @throws \SimpleSAML\XML\Exception\InvalidDOMElementException if the qualified name of the supplied element is wrong |
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*/ |
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public static function fromXML(DOMElement $xml): object |
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{ |
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Assert::same($xml->localName, 'BaseID', InvalidDOMElementException::class); |
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Assert::same($xml->namespaceURI, C::NS_SAML, InvalidDOMElementException::class); |
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Assert::true( |
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$xml->hasAttributeNS(C::NS_XSI, 'type'), |
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'Missing required xsi:type in <saml:BaseID> element.', |
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SchemaViolationException::class |
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); |
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$type = $xml->getAttributeNS(C::NS_XSI, 'type'); |
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Assert::validQName($type, SchemaViolationException::class); |
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// first, try to resolve the type to a full namespaced version |
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$qname = explode(':', $type, 2); |
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if (count($qname) === 2) { |
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list($prefix, $element) = $qname; |
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} else { |
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$prefix = null; |
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list($element) = $qname; |
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} |
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$ns = $xml->lookupNamespaceUri($prefix); |
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$type = ($ns === null ) ? $element : implode(':', [$ns, $element]); |
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// now check if we have a handler registered for it |
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$handler = Utils::getContainer()->getExtensionHandler($type); |
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if ($handler === null) { |
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// we don't have a handler, proceed with unknown identifier |
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return new UnknownID( |
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new Chunk($xml), |
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$type, |
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self::getAttribute($xml, 'NameQualifier', null), |
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self::getAttribute($xml, 'SPNameQualifier', null) |
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); |
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} |
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Assert::subclassOf( |
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$handler, |
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AbstractBaseID::class, |
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'Elements implementing BaseID must extend \SimpleSAML\SAML2\XML\saml\AbstractBaseID.'); |
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return $handler::fromXML($xml); |
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} |
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/** |
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* Convert this BaseID to XML. |
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* |
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* @param \DOMElement $parent The element we are converting to XML. |
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* @return \DOMElement The XML element after adding the data corresponding to this BaseID. |
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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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$e->setAttribute('xmlns:' . static::getXsiTypePrefix(), static::getXsiTypeNamespaceURI()); |
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$e->setAttributeNS(C::NS_XSI, 'xsi:type', $this->getXsiType()); |
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if ($this->NameQualifier !== null) { |
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$e->setAttribute('NameQualifier', $this->NameQualifier); |
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} |
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if ($this->SPNameQualifier !== null) { |
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$e->setAttribute('SPNameQualifier', $this->SPNameQualifier); |
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} |
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return $e; |
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} |
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} |
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simplesamlphp /
saml2
