firefly-iii/app/Http/Controllers/Auth/AuthController.php

<?php namespace FireflyIII\Http\Controllers\Auth;

use FireflyIII\Http\Controllers\Controller;
use Illuminate\Contracts\Auth\Guard;
use Illuminate\Contracts\Auth\Registrar;
use Illuminate\Foundation\Auth\AuthenticatesAndRegistersUsers;

class AuthController extends Controller
{

    /*
    |--------------------------------------------------------------------------
    | Registration & Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users, as well as the
    | authentication of existing users. By default, this controller uses
    | a simple trait to add these behaviors. Why don't you explore it?
    |
    */

    use AuthenticatesAndRegistersUsers;

    public $redirectTo = '/';

    /**
     * Create a new authentication controller instance.
     *
     * @param  \Illuminate\Contracts\Auth\Guard     $auth
     * @param  \Illuminate\Contracts\Auth\Registrar $registrar
     *
     * @return void
     */
    public function __construct(Guard $auth, Registrar $registrar)
    {
        $this->auth      = $auth;
        $this->registrar = $registrar;

        $this->middleware('guest', ['except' => 'getLogout']);
    }

}