+ public function __construct(
+ RegistrationService $registrationService,
+ LoginService $loginService,
+ GroupSyncService $groupSyncService
+ ) {
+ $this->config = config('saml2');
+ $this->registrationService = $registrationService;
+ $this->loginService = $loginService;
+ $this->groupSyncService = $groupSyncService;
+ }
+
+ /**
+ * Initiate a login flow.
+ *
+ * @throws Error
+ */
+ public function login(): array
+ {
+ $toolKit = $this->getToolkit();
+ $returnRoute = url('/saml2/acs');
+
+ return [
+ 'url' => $toolKit->login($returnRoute, [], false, false, true),
+ 'id' => $toolKit->getLastRequestID(),
+ ];
+ }
+
+ /**
+ * Initiate a logout flow.
+ *
+ * @throws Error
+ */
+ public function logout(User $user): array
+ {
+ $toolKit = $this->getToolkit();
+ $returnRoute = url('/');
+
+ try {
+ $url = $toolKit->logout(
+ $returnRoute,
+ [],
+ $user->email,
+ null,
+ true,
+ Constants::NAMEID_EMAIL_ADDRESS
+ );
+ $id = $toolKit->getLastRequestID();
+ } catch (Error $error) {
+ if ($error->getCode() !== Error::SAML_SINGLE_LOGOUT_NOT_SUPPORTED) {
+ throw $error;
+ }
+
+ $this->actionLogout();
+ $url = '/';
+ $id = null;
+ }
+
+ return ['url' => $url, 'id' => $id];
+ }
+
+ /**
+ * Process the ACS response from the idp and return the
+ * matching, or new if registration active, user matched to the idp.
+ * Returns null if not authenticated.
+ *
+ * @throws Error
+ * @throws SamlException
+ * @throws ValidationError
+ * @throws JsonDebugException
+ * @throws UserRegistrationException
+ */
+ public function processAcsResponse(?string $requestId, string $samlResponse): ?User
+ {
+ // The SAML2 toolkit expects the response to be within the $_POST superglobal
+ // so we need to manually put it back there at this point.
+ $_POST['SAMLResponse'] = $samlResponse;
+ $toolkit = $this->getToolkit();
+ $toolkit->processResponse($requestId);
+ $errors = $toolkit->getErrors();
+
+ if (!empty($errors)) {
+ throw new Error(
+ 'Invalid ACS Response: ' . implode(', ', $errors)
+ );
+ }
+
+ if (!$toolkit->isAuthenticated()) {
+ return null;
+ }
+
+ $attrs = $toolkit->getAttributes();
+ $id = $toolkit->getNameId();
+
+ return $this->processLoginCallback($id, $attrs);
+ }
+
+ /**
+ * Process a response for the single logout service.
+ *
+ * @throws Error
+ */
+ public function processSlsResponse(?string $requestId): ?string
+ {
+ $toolkit = $this->getToolkit();
+
+ // The $retrieveParametersFromServer in the call below will mean the library will take the query
+ // parameters, used for the response signing, from the raw $_SERVER['QUERY_STRING']
+ // value so that the exact encoding format is matched when checking the signature.
+ // This is primarily due to ADFS encoding query params with lowercase percent encoding while
+ // PHP (And most other sensible providers) standardise on uppercase.
+ $redirect = $toolkit->processSLO(true, $requestId, true, null, true);
+ $errors = $toolkit->getErrors();
+
+ if (!empty($errors)) {
+ throw new Error(
+ 'Invalid SLS Response: ' . implode(', ', $errors)
+ );
+ }
+
+ $this->actionLogout();
+
+ return $redirect;
+ }
+
+ /**
+ * Do the required actions to log a user out.
+ */
+ protected function actionLogout()
+ {
+ auth()->logout();
+ session()->invalidate();
+ }
+
+ /**
+ * Get the metadata for this service provider.
+ *
+ * @throws Error
+ */
+ public function metadata(): string
+ {
+ $toolKit = $this->getToolkit();
+ $settings = $toolKit->getSettings();
+ $metadata = $settings->getSPMetadata();
+ $errors = $settings->validateMetadata($metadata);
+
+ if (!empty($errors)) {
+ throw new Error(
+ 'Invalid SP metadata: ' . implode(', ', $errors),
+ Error::METADATA_SP_INVALID
+ );
+ }
+
+ return $metadata;
+ }
+
+ /**
+ * Load the underlying Onelogin SAML2 toolkit.
+ *
+ * @throws Error
+ * @throws Exception
+ */
+ protected function getToolkit(): Auth
+ {
+ $settings = $this->config['onelogin'];
+ $overrides = $this->config['onelogin_overrides'] ?? [];
+
+ if ($overrides && is_string($overrides)) {
+ $overrides = json_decode($overrides, true);
+ }
+
+ $metaDataSettings = [];
+ if ($this->config['autoload_from_metadata']) {
+ $metaDataSettings = IdPMetadataParser::parseRemoteXML($settings['idp']['entityId']);
+ }
+
+ $spSettings = $this->loadOneloginServiceProviderDetails();
+ $settings = array_replace_recursive($settings, $spSettings, $metaDataSettings, $overrides);
+
+ return new Auth($settings);
+ }
+
+ /**
+ * Load dynamic service provider options required by the onelogin toolkit.
+ */
+ protected function loadOneloginServiceProviderDetails(): array