找不到OpenID端点

Question

我正在尝试使用DotNetOpenId库在测试网站上添加OpenID支持.出于某种原因,它在Firefox上运行时一直给我以下错误.请记住,我正在使用localhost,因为我正在本地计算机上测试它.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using DotNetOpenAuth.OpenId.Extensions.ProviderAuthenticationPolicy;
using DotNetOpenAuth.OpenId.Extensions.SimpleRegistration;
using DotNetOpenAuth.OpenId.RelyingParty;

namespace TableSorterDemo
{
    public partial class Login : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            var openid = new OpenIdRelyingParty();
            if (openid.GetResponse() != null)
            {
                switch (openid.GetResponse().Status)
                {
                    case AuthenticationStatus.Authenticated:
                        var fetch = openid.GetResponse().GetExtension(typeof(ClaimsResponse)) as ClaimsResponse;
                        var nick = fetch.Nickname;
                        var email = fetch.Email;

                        break;
                }
            }
        }

        protected void OpenIdLogin1_LoggedIn(object sender, OpenIdEventArgs e)
        {
            var openid = new OpenIdRelyingParty(); 
            if(openid.GetResponse() != null)
            {
                switch(openid.GetResponse().Status)
                {
                    case AuthenticationStatus.Authenticated:
                        var fetch = openid.GetResponse().GetExtension(typeof (ClaimsResponse)) as ClaimsResponse;
                        var nick = fetch.Nickname;
                        var email = fetch.Email; 

                        break; 
                }
            }


        }

        protected void OpenIdLogin1_LoggingIn(object sender, OpenIdEventArgs e)
        {
            var openid = new OpenIdRelyingParty();
            var req = openid.CreateRequest(OpenIdLogin1.Text);
            var fetch = new ClaimsRequest();
            fetch.Email = DemandLevel.Require;
            fetch.Nickname = DemandLevel.Require; 
            req.AddExtension(fetch);
            req.RedirectToProvider();
            return; 
        }


    }
}

此外,如果我在Chrome中运行相同的页面,那么我会得到以下内容:

登录失败:此消息已被处理.这可能表示正在进行重播攻击.

Answer 1

重放攻击检测结果是您调用GetResponse()两次.你不能这样做.相反,只将一个调用的结果分配GetResponse()给一个局部变量,然后将其与null一起检查,否则使用它.

关于您"找不到OpenID端点"错误,您是否正在测试本地主机OpenID或由雅虎等外部方托管的OpenID？