getIP() public static method

public static getIP ( )
 /**
  * Obtain the user information from GitHub.
  *
  * @return Response
  */
 public function handleProviderCallback($provider)
 {
     $social_user = Socialite::driver($provider)->user();
     $social = new Social();
     $social->provider = $provider;
     $social->social_id = $social_user->id;
     $logged_in = false;
     $new_user = false;
     $url = '/';
     if (Auth::check()) {
         # User is logged in, add social account and link it
         if (!Social::whereProviderAndSocial_id($provider, $social_user->id)->first()) {
             $social->user_id = Laralum::loggedInUser()->id;
             $social->save();
             $msg = trans('laralum.social_success', ['provider' => $provider]);
         } else {
             $msg = trans('laralum.social_error', ['provider' => $provider]);
         }
         if (Laralum::loggedInUser()->isAdmin()) {
             $url = route('Laralum::profile');
         }
     } else {
         # User is not logged in, create an account & social account & login
         # Check if the user got an account
         if ($user = Laralum::user('email', $social_user->email)) {
             if (!Social::whereProviderAndSocial_id($provider, $social_user->id)->first()) {
                 $social->user_id = $user->id;
                 $social->save();
                 $new_link = true;
             } else {
                 $new_link = false;
             }
         } else {
             $user = Laralum::newUser();
             $user->email = $social_user->email;
             $user->name = $social_user->name;
             # Get the users settings
             $settings = Laralum::userSettings();
             # Check if register is enabled
             if (!$settings->register_enabled) {
                 abort(403, trans('laralum.error_registrations_disabled'));
             }
             # Setup a random activation key
             $activation_key = str_random(25);
             # Get the register IP
             $register_ip = Laralum::getIP();
             # Setup the activation method
             if ($settings->default_active == 0) {
                 # User not activated by default action
                 $active = false;
                 # Will not send the activation email
                 $send_activation = false;
             } elseif ($settings->default_active == 1) {
                 # User not activated by default action
                 $active = false;
                 # Will send the activation email
                 $send_activation = true;
             } else {
                 # User activated by default action
                 $active = true;
                 # Will not send the activation email
                 $send_activation = false;
             }
             if ($settings->location) {
                 try {
                     $user->country_code = Laralum::getCountryCode($register_ip);
                 } catch (Exception $e) {
                     $user->country_code = "FF";
                 }
             } else {
                 $user->country_code = "FF";
             }
             $user->active = $active;
             $user->activation_key = $activation_key;
             $user->register_ip = $register_ip;
             $user->save();
             $social->user_id = $user->id;
             $social->save();
             # Add Relationshop
             $rel = new Role_User();
             $rel->user_id = $user->id;
             $rel->role_id = $settings->default_role;
             $rel->save();
             # Send the welcome email if set
             if ($settings->welcome_email) {
                 # Sends the welcome email to the user
                 $user->sendWelcomeEmail();
             }
             # Send activation email if set
             if ($send_activation) {
                 # Sends the activation email to the user
                 $user->sendActivationEmail();
             }
             $new_user = true;
         }
         $logged_in = true;
         Auth::login($user);
     }
     if ($logged_in) {
         if ($new_user) {
             $msg = trans('laralum.social_success_register', ['provider' => $provider]);
         } else {
             if ($new_link) {
                 $msg = trans('laralum.social_success_login_link', ['provider' => $provider]);
             } else {
                 $msg = trans('laralum.social_success_login', ['provider' => $provider]);
             }
         }
     }
     return redirect($url)->with('success', $msg);
 }