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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\SAML2\XML\samlp; |
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use DOMElement; |
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use SimpleSAML\Assert\Assert; |
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use SimpleSAML\SAML2\Exception\Protocol\RequestVersionTooHighException; |
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use SimpleSAML\SAML2\Exception\Protocol\RequestVersionTooLowException; |
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use SimpleSAML\SAML2\Exception\ProtocolViolationException; |
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use SimpleSAML\SAML2\XML\saml\Attribute; |
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use SimpleSAML\SAML2\XML\saml\Issuer; |
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use SimpleSAML\SAML2\XML\saml\Subject; |
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use SimpleSAML\XML\Exception\InvalidDOMElementException; |
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use SimpleSAML\XML\Exception\MissingElementException; |
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use SimpleSAML\XML\Exception\TooManyElementsException; |
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use SimpleSAML\XML\Utils as XMLUtils; |
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use SimpleSAML\XMLSecurity\XML\ds\Signature; |
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use function array_pop; |
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use function in_array; |
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/** |
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* Class for SAML 2 attribute query messages. |
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* |
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* An attribute query asks for a set of attributes. The following |
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* rules apply: |
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* |
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* - If no attributes are present in the query, all attributes should be |
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* returned. |
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* - If any attributes are present, only those attributes which are present |
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* in the query should be returned. |
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* - If an attribute contains any attribute values, only the attribute values |
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* which match those in the query should be returned. |
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* |
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* @package simplesamlphp/saml2 |
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*/ |
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class AttributeQuery extends AbstractSubjectQuery |
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{ |
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/** |
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* Constructor for SAML 2 AttributeQuery. |
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* |
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* @param \SimpleSAML\SAML2\XML\saml\Subject $subject |
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* @param \SimpleSAML\SAML2\XML\saml\Attribute[] $attributes |
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* @param \SimpleSAML\SAML2\XML\saml\Issuer $issuer |
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* @param string|null $id |
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* @param string $version |
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* @param int $issueInstant |
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* @param string|null $destination |
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* @param string|null $consent |
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* @param \SimpleSAML\SAML2\XML\samlp\Extensions $extensions |
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*/ |
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public function __construct( |
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Subject $subject, |
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protected array $attributes = [], |
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?Issuer $issuer = null, |
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?string $id = null, |
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string $version = '2.0', |
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?int $issueInstant = null, |
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?string $destination = null, |
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?string $consent = null, |
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?Extensions $extensions = null, |
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) { |
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Assert::allIsInstanceOf($attributes, Attribute::class); |
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$cache = []; |
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foreach ($attributes as $attribute) { |
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$name = $attribute->getName(); |
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$nameFormat = $attribute->getNameFormat(); |
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if (isset($cache[$nameFormat])) { |
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Assert::true( |
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!in_array($name, $cache[$nameFormat], true), |
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'A single query MUST NOT contain two <saml:Attribute> elements with the same Name and NameFormat.', |
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ProtocolViolationException::class, |
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); |
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} |
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$cache[$nameFormat][] = $name; |
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} |
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unset($cache); |
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parent::__construct($subject, $issuer, $id, $version, $issueInstant, $destination, $consent, $extensions); |
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} |
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/** |
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* Retrieve all requested attributes. |
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* |
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* @return \SimpleSAML\SAML2\XML\saml\Attribute[] All requested attributes, as an associative array. |
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*/ |
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public function getAttributes(): array |
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{ |
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return $this->attributes; |
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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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* @throws \SimpleSAML\XML\Exception\InvalidDOMElementException |
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* if the qualified name of the supplied element is wrong |
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* @throws \SimpleSAML\XML\Exception\MissingAttributeException |
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* if the supplied element is missing one of the mandatory attributes |
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* @throws \SimpleSAML\XML\Exception\MissingElementException |
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* if one of the mandatory child-elements is missing |
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* @throws \SimpleSAML\XML\Exception\TooManyElementsException |
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* if too many child-elements of a type are specified |
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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, 'AttributeQuery', InvalidDOMElementException::class); |
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Assert::same($xml->namespaceURI, AttributeQuery::NS, InvalidDOMElementException::class); |
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$version = self::getAttribute($xml, 'Version'); |
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Assert::true(version_compare('2.0', $version, '<='), RequestVersionTooLowException::class); |
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Assert::true(version_compare('2.0', $version, '>='), RequestVersionTooHighException::class); |
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$id = self::getAttribute($xml, 'ID'); |
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$destination = self::getAttribute($xml, 'Destination', null); |
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$consent = self::getAttribute($xml, 'Consent', null); |
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$issueInstant = self::getAttribute($xml, 'IssueInstant'); |
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// Strip sub-seconds - See paragraph 1.3.3 of SAML core specifications |
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$issueInstant = preg_replace('/([.][0-9]+Z)$/', 'Z', $issueInstant, 1); |
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Assert::validDateTimeZulu($issueInstant, ProtocolViolationException::class); |
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$issueInstant = XMLUtils::xsDateTimeToTimestamp($issueInstant); |
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$issuer = Issuer::getChildrenOfClass($xml); |
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Assert::countBetween($issuer, 0, 1); |
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$extensions = Extensions::getChildrenOfClass($xml); |
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Assert::maxCount( |
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$extensions, |
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1, |
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'Only one saml:Extensions element is allowed.', |
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TooManyElementsException::class, |
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); |
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$subject = Subject::getChildrenOfClass($xml); |
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Assert::notEmpty($subject, 'Missing subject in subject query.', MissingElementException::class); |
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Assert::maxCount( |
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$subject, |
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1, |
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'More than one <saml:Subject> in AttributeQuery', |
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TooManyElementsException::class, |
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); |
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$signature = Signature::getChildrenOfClass($xml); |
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Assert::maxCount($signature, 1, 'Only one ds:Signature element is allowed.', TooManyElementsException::class); |
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$request = new static( |
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array_pop($subject), |
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Attribute::getChildrenOfClass($xml), |
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array_pop($issuer), |
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$id, |
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$version, |
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$issueInstant, |
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$destination, |
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$consent, |
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array_pop($extensions), |
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); |
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if (!empty($signature)) { |
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$request->setSignature($signature[0]); |
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$request->setXML($xml); |
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} |
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return $request; |
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} |
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/** |
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* Convert this message to an unsigned XML document. |
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* This method does not sign the resulting XML document. |
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* |
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* @return \DOMElement The root element of the DOM tree |
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*/ |
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protected function toUnsignedXML(?DOMElement $parent = null): DOMElement |
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{ |
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$e = parent::toUnsignedXML($parent); |
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foreach ($this->getAttributes() as $attribute) { |
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$attribute->toXML($e); |
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} |
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return $e; |
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} |
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} |
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simplesamlphp /
saml2
