BookStack\Http\Controllers\Auth\RegisterController::registerUser PHP Метод

    protected function registerUser(array $userData, $socialAccount = false)
    {
        if (setting('registration-restrict')) {
            $restrictedEmailDomains = explode(',', str_replace(' ', '', setting('registration-restrict')));
            $userEmailDomain = $domain = substr(strrchr($userData['email'], "@"), 1);
            if (!in_array($userEmailDomain, $restrictedEmailDomains)) {
                throw new UserRegistrationException('That email domain does not have access to this application', '/register');
            }
        }
        $newUser = $this->userRepo->registerNew($userData);
        if ($socialAccount) {
            $newUser->socialAccounts()->save($socialAccount);
        }
        if (setting('registration-confirmation') || setting('registration-restrict')) {
            $newUser->save();
            try {
                $this->emailConfirmationService->sendConfirmation($newUser);
            } catch (Exception $e) {
                session()->flash('error', trans('auth.email_confirm_send_error'));
            }
            return redirect('/register/confirm');
        }
        auth()->login($newUser);
        session()->flash('success', 'Thanks for signing up! You are now registered and signed in.');
        return redirect($this->redirectPath());
    }