Event::listen('Aacotroneo\Saml2\Events\Saml2LoginEvent', function (Saml2LoginEvent $event) {
            // dd($event);
            $messageId = $event->getSaml2Auth()->getLastMessageId();
            // your own code preventing reuse of a $messageId to stop replay attacks
            $user = $event->getSaml2User();
            $attributes = $user->getAttributes();
            $userData = [
                'id' => $user->getUserId(),
                'attributes' => $attributes,
                'assertion' => $user->getRawSamlAssertion()
            ];
            // dd($attributes);
            $laravelUser = User::where('username', $attributes['sAMAccountName'][0])->first();//find user by ID or attribute
             //if it does not exist create it and go on  or show an error message
            if ($laravelUser) {
                auth()->login($laravelUser);
            } else {
                $laravelUser = User::create([
                    'name' => $data['urn:oid:2.5.4.3'][0],
                    'username' => $data['sAMAccountName'][0],
                    'email' => $data['urn:oid:0.9.2342.19200300.100.1.3'],
                    'mail' => $data['urn:oid:0.9.2342.19200300.100.1.3']
                ]);
                auth()->login($laravelUser);
            }
        });

        Event::listen('Aacotroneo\Saml2\Events\Saml2LogoutEvent', function ($event) {
            auth()->guard('ldap')->logout();
            auth()->logout();
            session()->save();
        });