c# - 如何为 DotNetOpenAuth 设置返回 url

Question

我正在使用 DotNetOpenAuth 登录 Facebook。
这是代码:

var facebookClient = new FacebookClient
{
    ClientIdentifier = "appId",
    ClientSecret = "appSecret"
};
IAuthorizationState authorization = facebookClient.ProcessUserAuthorization();
if (authorization == null)
{
    // Kick off authorization request
    facebookClient.RequestUserAuthorization();
}
else
{

    var request =
        WebRequest.Create("https://graph.facebook.com/me?access_token=" +
                            Uri.EscapeDataString(authorization.AccessToken));

    using (var response = request.GetResponse())
    {
        using (var responseStream = response.GetResponseStream())
        {
            var graph = FacebookGraph.Deserialize(responseStream);
            lblFacebookUserName.Text = HttpUtility.HtmlEncode(graph.Name);
        }
    }
}

因为我使用的是自定义 url 重写器，所以我在登录后收到错误消息，因为返回的 url 类似于

~/foo/foo.aspx?labg=en

我希望它硬编码为

~/foo/foo

任何帮助将不胜感激

Answer 1

您需要使用回调 URL 初始化 AuthorizationState 对象，并将其传递给稍微不同的方法:

// Kick off authorization request
var authorizationState = new AuthorizationState()
{
    Callback = new Uri(Request.Url, Page.ResolveUrl("~/foo/foo"));
};
facebookClient.PrepareRequestUserAuthorization(authorizationState).Send();