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<?php |
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namespace flipbox\saml\idp\services\messages; |
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use craft\base\Component; |
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use craft\elements\User; |
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use flipbox\saml\core\exceptions\AccessDenied; |
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use flipbox\saml\core\helpers\MessageHelper; |
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use flipbox\saml\core\records\AbstractProvider; |
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use flipbox\saml\core\services\bindings\Factory; |
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use flipbox\saml\idp\models\Settings; |
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use flipbox\saml\idp\records\ProviderRecord; |
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use flipbox\saml\idp\records\ProviderRecord as Provider; |
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use flipbox\saml\idp\Saml; |
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use SAML2\AuthnRequest as SamlAuthnRequest; |
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use SAML2\Constants; |
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use SAML2\Response as ResponseMessage; |
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use yii\base\Event; |
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class Response extends Component |
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{ |
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const CONSENT_IMPLICIT = Constants::CONSENT_IMPLICIT; |
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const EVENT_AFTER_MESSAGE_CREATED = 'eventAfterMessageCreated'; |
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/** |
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* @param User $user |
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* @param SamlAuthnRequest $authnRequest |
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* @param Provider $identityProvider |
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* @param Provider $serviceProvider |
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* @param Settings $settings |
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* @return ResponseMessage |
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* @throws \Exception |
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*/ |
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public function create( |
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User $user, |
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SamlAuthnRequest $authnRequest, |
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Provider $identityProvider, |
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Provider $serviceProvider, |
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Settings $settings |
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) { |
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// Check Conditional login on the user |
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if (! $this->isAllowed($user, $serviceProvider)) { |
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throw new AccessDenied( |
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sprintf( |
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'Entity (%s) Access denied for user %s', |
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$serviceProvider->getEntityId(), |
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$user->username |
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) |
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); |
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} |
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$response = $this->createGeneral($authnRequest, $identityProvider, $serviceProvider); |
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Saml::getInstance()->getResponseAssertion()->create( |
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$user, |
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$authnRequest, |
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$response, |
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$identityProvider, |
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$serviceProvider, |
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$settings |
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); |
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$response->setSignatureKey( |
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$identityProvider->keychainPrivateXmlSecurityKey() |
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); |
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/** |
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* Kick off event here so people can manipulate this object if needed |
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*/ |
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$event = new Event(); |
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$event->data = $response; |
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$this->trigger(static::EVENT_AFTER_MESSAGE_CREATED, $event); |
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return $response; |
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} |
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/** |
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* @param SamlAuthnRequest $authnRequest |
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* @param Provider $identityProvider |
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* @return ResponseMessage |
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* @throws \Exception |
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*/ |
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protected function createGeneral( |
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SamlAuthnRequest $authnRequest, |
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Provider $identityProvider, |
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Provider $serviceProvider |
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) { |
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$acsService = $serviceProvider->firstSpAcsService( |
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Constants::BINDING_HTTP_POST |
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) ?? $serviceProvider->firstSpAcsService(); |
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$response = new ResponseMessage(); |
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$response->setIssuer( |
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$identityProvider->getEntityId() |
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); |
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$response->setId($requestId = MessageHelper::generateId()); |
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$response->setDestination( |
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$authnRequest->getAssertionConsumerServiceURL() ?? $acsService->getLocation() |
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); |
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$response->setConsent(static::CONSENT_IMPLICIT); |
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$response->setInResponseTo( |
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$authnRequest->getId() |
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); |
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$response->setStatus( |
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[ |
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'Code' => Constants::STATUS_SUCCESS, |
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] |
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); |
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$response->setIssueInstant( |
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(new \DateTime())->getTimestamp() |
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); |
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$response->setRelayState( |
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$authnRequest->getRelayState() |
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); |
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return $response; |
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} |
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/** |
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* @throws \flipbox\saml\core\exceptions\InvalidMetadata |
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*/ |
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public function createAndSendFromSession() |
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{ |
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if (! $authnRequest = Saml::getInstance()->getSession()->getAuthnRequest()) { |
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return; |
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} |
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// Clear the session |
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Saml::getInstance()->getSession()->remove(); |
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if (! $user = \Craft::$app->getUser()->getIdentity()) { |
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return; |
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} |
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// load our container |
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Saml::getInstance()->loadSaml2Container(); |
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/** @var ProviderRecord $serviceProvider */ |
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$serviceProvider = Saml::getInstance()->getProvider()->findByEntityId( |
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MessageHelper::getIssuer($authnRequest->getIssuer()) |
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)->one(); |
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$identityProvider = Saml::getInstance()->getProvider()->findOwn(); |
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$response = $this->create( |
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$user, |
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$authnRequest, |
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$identityProvider, |
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$serviceProvider, |
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Saml::getInstance()->getSettings() |
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); |
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Factory::send($response, $serviceProvider); |
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} |
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/** |
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163
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* Utils |
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164
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*/ |
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166
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/** |
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* @param User $user |
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* @param AbstractProvider $serviceProvider |
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* @return bool |
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*/ |
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protected function isAllowed(User $user, AbstractProvider $serviceProvider): bool |
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{ |
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$options = $serviceProvider->getGroupOptions(); |
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if ($options->shouldDenyNoGroupAssigned($user)) { |
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return false; |
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} |
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foreach ($user->getGroups() as $group) { |
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if (! $options->shouldAllow($group->id)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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} |
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flipboxfactory /
saml-idp
