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<?php |
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namespace flipbox\saml\core\helpers; |
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use flipbox\saml\core\AbstractPlugin; |
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use SAML2\XML\md\EndpointType; |
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use SAML2\XML\md\EntityDescriptor; |
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use SAML2\XML\md\IDPSSODescriptor; |
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use SAML2\XML\md\IndexedEndpointType; |
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use SAML2\XML\md\SPSSODescriptor; |
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use SAML2\XML\md\SSODescriptorType; |
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class EntityDescriptorHelper |
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{ |
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const ENDPOINT_SERVICE_ARTIFACT_RESOLUTION = 'ArtifactResolution'; |
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const ENDPOINT_SERVICE_SINGLE_LOGOUT = 'SingleLogout'; |
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const ENDPOINT_SERVICE_MANAGE_NAME_ID = 'ManageNameID'; |
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const ENDPOINT_SERVICE_ASSERTION_CONSUMER = 'AssertionConsumer'; |
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const ENDPOINT_SERVICE_ATTRIBUTE_CONSUMING = 'AttributeConsuming'; |
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const ENDPOINT_SERVICE_SINGLE_SIGN_ON = 'SingleSignOn'; |
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const ENDPOINT_SERVICE_ASSERTION_ID_REQUEST = 'AssertionIDRequest'; |
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const ENDPOINT_SERVICE_NAME_ID_MAPPING = 'NameIDMapping'; |
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const ENDPOINT_SERVICE_OPTIONS = [ |
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// Common |
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self::ENDPOINT_SERVICE_ARTIFACT_RESOLUTION, |
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self::ENDPOINT_SERVICE_SINGLE_LOGOUT, |
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self::ENDPOINT_SERVICE_MANAGE_NAME_ID, |
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// SP |
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self::ENDPOINT_SERVICE_ASSERTION_CONSUMER, |
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self::ENDPOINT_SERVICE_ATTRIBUTE_CONSUMING, |
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// IDP |
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self::ENDPOINT_SERVICE_SINGLE_SIGN_ON, |
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self::ENDPOINT_SERVICE_ASSERTION_ID_REQUEST, |
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self::ENDPOINT_SERVICE_NAME_ID_MAPPING, |
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]; |
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/** |
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* @param EntityDescriptor $entityDescriptor |
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* @return IDPSSODescriptor[] |
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*/ |
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public static function getIdpDescriptors(EntityDescriptor $entityDescriptor) |
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{ |
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return static::getDescriptors($entityDescriptor, IDPSSODescriptor::class); |
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} |
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/** |
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* @param EntityDescriptor $entityDescriptor |
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* @return SPSSODescriptor[] |
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*/ |
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public static function getSpDescriptors(EntityDescriptor $entityDescriptor) |
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{ |
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return static::getDescriptors($entityDescriptor, SPSSODescriptor::class); |
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} |
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/** |
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* @param EntityDescriptor $entityDescriptor |
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* @param string $type |
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* @return SSODescriptorType[] |
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*/ |
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protected static function getDescriptors(EntityDescriptor $entityDescriptor, string $type) |
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{ |
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$descriptors = []; |
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foreach ($entityDescriptor->getRoleDescriptor() as $roleDescriptor) { |
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if ($roleDescriptor instanceof $type) { |
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$descriptors[] = $roleDescriptor; |
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} |
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} |
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return $descriptors; |
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} |
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/** |
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* Common |
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*/ |
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/** |
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* @param SSODescriptorType[] $roleDescriptors |
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* @param string $binding |
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* @return EndpointType|null |
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*/ |
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public static function getFirstArtifactResolutionService(array $roleDescriptors, string $binding = null) |
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{ |
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return static::getFirstService(self::ENDPOINT_SERVICE_ARTIFACT_RESOLUTION, $roleDescriptors, $binding); |
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} |
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/** |
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* @param SSODescriptorType[] $roleDescriptors |
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* @param string $binding |
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* @return EndpointType|null |
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*/ |
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public static function getFirstSLOService(array $roleDescriptors, string $binding = null) |
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{ |
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return static::getFirstService(self::ENDPOINT_SERVICE_SINGLE_LOGOUT, $roleDescriptors, $binding); |
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} |
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/** |
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* @param SSODescriptorType[] $roleDescriptors |
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* @param string $binding |
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* @return EndpointType|null |
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*/ |
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public static function getFirstManageNameIDService(array $roleDescriptors, string $binding = null) |
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{ |
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return static::getFirstService(self::ENDPOINT_SERVICE_MANAGE_NAME_ID, $roleDescriptors, $binding); |
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} |
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/** |
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* Get First SP Services |
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*/ |
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/** |
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* @param SPSSODescriptor[] $roleDescriptors |
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* @param string $binding |
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* @return EndpointType|null |
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*/ |
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public static function getFirstSpAssertionConsumerService(array $roleDescriptors, string $binding = null) |
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{ |
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return static::getFirstService(self::ENDPOINT_SERVICE_ASSERTION_CONSUMER, $roleDescriptors, $binding); |
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} |
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/** |
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* @param SPSSODescriptor[] $roleDescriptors |
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* @param string $binding |
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* @return EndpointType|null |
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*/ |
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public static function getFirstSpAttributeConsumingService(array $roleDescriptors, string $binding = null) |
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{ |
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return static::getFirstService(self::ENDPOINT_SERVICE_ATTRIBUTE_CONSUMING, $roleDescriptors, $binding); |
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} |
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/** |
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* Get First IDP Services |
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*/ |
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/** |
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* @param IDPSSODescriptor[] $roleDescriptors |
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* @param string $binding |
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* @return EndpointType|null |
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*/ |
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public static function getFirstIdpSSOService(array $roleDescriptors, string $binding = null) |
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{ |
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return static::getFirstService(self::ENDPOINT_SERVICE_SINGLE_SIGN_ON, $roleDescriptors, $binding); |
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} |
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/** |
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* @param IDPSSODescriptor[] $roleDescriptors |
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* @param string $binding |
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* @return EndpointType|null |
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*/ |
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public static function getFirstIdpAssertionIdRequestService(array $roleDescriptors, string $binding = null) |
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{ |
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return static::getFirstService(self::ENDPOINT_SERVICE_ASSERTION_ID_REQUEST, $roleDescriptors, $binding); |
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} |
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/** |
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* @param IDPSSODescriptor[] $roleDescriptors |
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* @param string $binding |
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* @return EndpointType|null |
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*/ |
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public static function getFirstIdpNameIDMappingService(array $roleDescriptors, string $binding = null) |
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{ |
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return static::getFirstService(self::ENDPOINT_SERVICE_NAME_ID_MAPPING, $roleDescriptors, $binding); |
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} |
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/** |
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* @param SSODescriptorType[] $roleDescriptors |
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* @param string $binding |
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* @param string $service |
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* @return EndpointType|null |
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*/ |
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protected static function getFirstService(string $service, array $roleDescriptors, string $binding = null) |
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{ |
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if (! in_array($service, static::ENDPOINT_SERVICE_OPTIONS)) { |
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throw new \InvalidArgumentException('Unknown service passed: ' . $service); |
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} |
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\Craft::info( |
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sprintf( |
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'Looping thru %s role descriptors', |
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count($roleDescriptors) |
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), |
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'saml-core' |
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); |
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$serviceMethod = 'get' . $service . 'Service'; |
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\Craft::info( |
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'Using Service method: ' . $serviceMethod, |
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'saml-core' |
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); |
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$return = null; |
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foreach ($roleDescriptors as $descriptor) { |
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if ($return = static::getFirstIndexedEndpointType( |
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call_user_func([$descriptor, $serviceMethod]), |
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$binding |
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) |
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) { |
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break; |
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} |
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} |
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return $return; |
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} |
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/** |
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* @param IndexedEndpointType[] $endpointTypes |
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* @param $binding |
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* @return EndpointType|null |
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*/ |
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protected static function getFirstIndexedEndpointType(array $endpointTypes, string $binding = null) |
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{ |
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// Is there one? |
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if (!isset($endpointTypes[0])) { |
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return null; |
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} |
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// Default to the first one |
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$return = $endpointTypes[0]; |
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if (is_null($binding)) { |
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return $return; |
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} |
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// Reset the return |
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$return = null; |
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/** @var EndpointType $endpointType */ |
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foreach ($endpointTypes as $endpointType) { |
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if (! $endpointType instanceof EndpointType) { |
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throw new \InvalidArgumentException(); |
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} |
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if ($endpointType->getBinding() === $binding) { |
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$return = $endpointType; |
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break; |
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} |
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} |
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return $return; |
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} |
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} |
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