在laravel 5.2中覆盖自定义登录错误消息

Question

I've been struggling with laravel 5.2 login function messages. I've override the default sendFailedLoginResponse function in AuthController which works for failed attempts.

But I need to override the validate function response as well which I could not figure out how to do that. Also I do not want to override the default login functionality in the AuthContrller and want to stick with the same login function.

The reason for overriding the validate function is that am making an angular app and want the response in json format with some custom keys.

Currently default login function in Illuminate\\Foundation\\Auth\\AuthenticateUsers.php

public function login(Request $request)
{
    $this->validate($request, [
        $this->loginUsername() => 'required', 'password' => 'required',
    ]);
    // If the class is using the ThrottlesLogins trait, we can automatically throttle
    // the login attempts for this application. We'll key this by the username and
    // the IP address of the client making these requests into this application.
    $throttles = $this->isUsingThrottlesLoginsTrait();

    if ($throttles && $this->hasTooManyLoginAttempts($request)) {
        return $this->sendLockoutResponse($request);
    }

    $credentials = $this->getCredentials($request);

    if (Auth::guard($this->getGuard())->attempt($credentials, $request->has('remember'))) {
        return $this->handleUserWasAuthenticated($request, $throttles);
    }

    // If the login attempt was unsuccessful we will increment the number of attempts
    // to login and redirect the user back to the login form. Of course, when this
    // user surpasses their maximum number of attempts they will get locked out.
    if ($throttles) {
        $this->incrementLoginAttempts($request);
    }

    return $this->sendFailedLoginResponse($request);
}

I want the response something like in the below sendFailedResponse function in AuthController

 /**
 * Get failed request response
 *
 * @param null
 * @return null
 */
public function sendFailedLoginResponse()
{
    return response()->json( [ 'status' => false, 'message' => $this->getFailedLoginMessage() ]);
}

Thanks

Answer 1

I don't know anything about Angular and handling json on laravel but I had similar problem while creating custom error message for postLogin function. take a look at this code, perhaps you could do something within form request.

This is my AuthController.php

use App\Http\Requests\LoginFormRequest;

/**
 * Handle a login request to the application.
 *
 * @param  \Illuminate\Http\Request  $request
 * @return \Illuminate\Http\Response
 */
public function postLogin(LoginFormRequest $request)
{
    return $this->login($request);
}

Try using form request on the function postLogin

class LoginFormRequest extends Request
{
  /**
   * Determine if the user is authorized to make this request.
   *
   * @return bool
   */
  public function authorize()
  {
    return true;
  }

  /**
   * Get the validation rules that apply to the request.
   *
   * @return array
   */
  public function rules()
  {
    return [
        'email'            => 'required|email',
        'password'         => 'required|min:6',
    ];
  }

  public function messages()
  {
    return [
        'required'  => 'Your :attribute is required.',
        'min'  => ':attribute must be at least :min characters in length.',
        'email' => 'Please type valid email address.',
    ];
  }
}

Answer 2

我通过实现JWT进行身份验证提出了该解决方案，我认为这是客户端的最佳解决方案。