如何验证 WPF 客户端对 ASP .NET WebAPI 2 的请求

我刚刚创建了一个ASP .NET MVC 5 Web API项目并添加了实体框架模型和其他东西以使其能够使用ASP。网络身份 http://identity.codeplex.com/.

现在，我需要从 WPF 客户端应用程序创建一个对该 API 标准方法的简单的经过身份验证的请求。

ASP .NET MVC 5 Web API 代码

[Authorize]
[RoutePrefix("api/Account")]
public class AccountController : ApiController

        // GET api/Account/UserInfo
        [HostAuthentication(DefaultAuthenticationTypes.ExternalBearer)]
        [Route("UserInfo")]
        public UserInfoViewModel GetUserInfo()
        {
            ExternalLoginData externalLogin = ExternalLoginData.FromIdentity(User.Identity as ClaimsIdentity);

            return new UserInfoViewModel
            {
                UserName = User.Identity.GetUserName(),
                HasRegistered = externalLogin == null,
                LoginProvider = externalLogin != null ? externalLogin.LoginProvider : null
            };
        }

WPF客户端代码

public partial class MainWindow : Window
{
    HttpClient client = new HttpClient();

    public MainWindow()
    {
        InitializeComponent();

        client.BaseAddress = new Uri("http://localhost:22678/");
        client.DefaultRequestHeaders.Accept.Add(
            new MediaTypeWithQualityHeaderValue("application/json")); // It  tells the server to send data in JSON format.
    }

    private  void Button_Click(object sender, RoutedEventArgs e)
    {
        Test();
    }

    private async void Test( )
    {
        try
        {
            var response = await client.GetAsync("api/Account/UserInfo");

            response.EnsureSuccessStatusCode(); // Throw on error code.

            var data = await response.Content.ReadAsAsync<UserInfoViewModel>();

        }
        catch (Newtonsoft.Json.JsonException jEx)
        {
            // This exception indicates a problem deserializing the request body.
            MessageBox.Show(jEx.Message);
        }
        catch (HttpRequestException ex)
        {
            MessageBox.Show(ex.Message);
        }
        finally
        {               
        }
    }
}

它似乎正在连接到主机，并且我收到了正确的错误。那没问题。

响应状态码不表示成功：401（未经授权）。

主要问题是我不确定如何使用 WPF 客户端发送用户名和密码...

（伙计们，我不是问我是否必须对其进行加密并在 API 方法实现上使用 Auth Filter。稍后我肯定会这样做......）

我听说我必须在标头请求中发送用户名和密码...但我不知道如何使用来完成HttpClient client = new HttpClient();

感谢您提供任何线索！

附：我有更换吗HttpClient with WebClient并使用Task (无法使用 HttpClient 对 ASP.NET Web Api 服务进行身份验证 https://stackoverflow.com/questions/10308938/unable-to-authenticate-to-asp-net-web-api-service-with-httpclient)?

您可以像这样发送当前登录的用户：

    var handler = new HttpClientHandler();
    handler.UseDefaultCredentials = true;
    _httpClient = new HttpClient(handler);

然后您可以创建自己的授权过滤器

public class MyAPIAuthorizationFilter : ActionFilterAttribute
{
    public override void OnActionExecuting(HttpActionContext actionContext)
    {
        //perform check here, perhaps against AD group, or check a roles based db?
        if(success)
        {
            base.OnActionExecuting(actionContext);
        }
        else
        {
            var msg = string.Format("User {0} attempted to use {1} but is not a member of the AD group.", id, actionContext.Request.Method);
            throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.Unauthorized)
            {
                Content = new StringContent(msg),
                ReasonPhrase = msg
            });
        }
    }
}

然后对控制器中要保护的每个操作使用 [MyAPIAuthorizationFilter]。