如何覆盖 Laravel 中的身份验证登录功能

Question

I need to override laravel's default login function, however I am confused by the code I find there. I do not understand how laravel AuthenticatesUsers.php verifies that user exists in db and then authenticates the user.

I've come to this function in AuthenticatesUsers.php

/**
 * Attempt to log the user into the application.
 *
 * @param  \Illuminate\Http\Request  $request
 * @return bool
 */
protected function attemptLogin(Request $request)
{
    return $this->guard()->attempt(
        $this->credentials($request), $request->filled('remember')
    );
}

I guess I would need to override this function inside auth/LoginController.php

but I do not understand how it works. Where are guard() and attempt() implemented, I guess the real action happens there. I need to add another condition to the login.

Anyone understands how laravel's default login works? and those two functions guard() and attempt() , for example attempt is not implemented inside AuthenticatesUsers.php itself and I believe its this function I should really override.

Where can I find it's implementation?

Answer 1

I would suggest not overriding any functions, instead create a new guard and provider . Look at the config/auth.php to see how they are defined.

Then you can set your custom guard as default and the normal auth flow will take over.

See the documentation on Adding Custom Guards

Answer 2

I have just changed HomeController.php - using 'guest' as the middleware instead of 'auth'. For anyone in a similar situation, this works as a temporary solution.