Laravel 自动生成验证的实例讲解:login / logout(2)

public function login(Request $request)
 {
  $this->validateLogin($request);
  /**
  *
  protected function validateLogin(Request $request)
 {
  $this->validate($request, [
   $this->username() => 'required|string',
   'password' => 'required|string',
  ]);
 }
  其中 $this->username() 就是 return 'email';
  **/
  // 限制请求次数，防止暴力破解的
  if ($this->hasTooManyLoginAttempts($request)) {
   $this->fireLockoutEvent($request);

   return $this->sendLockoutResponse($request);
  }
  /**
  // 关于 attempt 的介绍可以看我上一篇博客
  protected function attemptLogin(Request $request)
 {
  return $this->guard()->attempt(
   $this->credentials($request), $request->has('remember')
  );
 }
 **/
  // 如果验证通过的话
  if ($this->attemptLogin($request)) {
   return $this->sendLoginResponse($request);
  }
  // 否则的话增加验证的统计次数
  $this->incrementLoginAttempts($request);
  // 返回错误信息
  return $this->sendFailedLoginResponse($request);
 }

public function logout(Request $request)
 {
  $this->guard()->logout();

  $request->session()->invalidate();

  return redirect('/');
 }

protected function guard()
 {
  return Auth::guard();
 }

public function logout()
 {
  $user = $this->user();

  $this->clearUserDataFromStorage();

  if (! is_null($this->user)) {
   $this->cycleRememberToken($user);
  }

  if (isset($this->events)) {
   $this->events->dispatch(new Events\Logout($user));
  }

  // Once we have fired the logout event we will clear the users out of memory
  // so they are no longer available as the user is no longer considered as
  // being signed into this application and should not be available here.
  $this->user = null;

  $this->loggedOut = true;
 }

public function logout(Request $request)
 {
  Auth::guard()->logout();

  $request->session()->invalidate();
  // 自定义重定向地址
  return redirect('/');
 }