ClaimResponse Always Return Null

Question

Hi, I have the following code in asp.net. I used DotNetOpenAuth.dll for openID. the code is under

protected void openidValidator_ServerValidate(object source, ServerValidateEventArgs args)
    {
        // This catches common typos that result in an invalid OpenID Identifier.
        args.IsValid = Identifier.IsValid(args.Value);
    }

    protected void loginButton_Click(object sender, EventArgs e)
    {
        if (!this.Page.IsValid)
        {
            return; // don't login if custom validation failed.
        }
        try
        {
            using (OpenIdRelyingParty openid = this.createRelyingParty())
            {
                IAuthenticationRequest request = openid.CreateRequest(this.openIdBox.Text);

                // This is where you would add any OpenID extensions you wanted
                // to include in the authentication request.
                ClaimsRequest objClmRequest = new ClaimsRequest();
                objClmRequest.Email = DemandLevel.Request;
                objClmRequest.Country = DemandLevel.Request;
                request.AddExtension(objClmRequest);

                // Send your visitor to their Provider for authentication.
                request.RedirectToProvider();
            }
        }
        catch (ProtocolException ex)
        {
            this.openidValidator.Text = ex.Message;
            this.openidValidator.IsValid = false;
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        this.openIdBox.Focus();
        if (Request.QueryString["clearAssociations"] == "1")
        {
            Application.Remove("DotNetOpenAuth.OpenId.RelyingParty.OpenIdRelyingParty.ApplicationStore");

            UriBuilder builder = new UriBuilder(Request.Url);
            builder.Query = null;
            Response.Redirect(builder.Uri.AbsoluteUri);
        }

        OpenIdRelyingParty openid = this.createRelyingParty();
        var response = openid.GetResponse();
        if (response != null)
        {
            switch (response.Status)
            {
                case AuthenticationStatus.Authenticated:
                    // This is where you would look for any OpenID extension responses included
                    // in the authentication assertion.
                    var claimsResponse = response.GetExtension<ClaimsResponse>();
                    State.ProfileFields = claimsResponse;
                    // Store off the "friendly" username to display -- NOT for username lookup
                    State.FriendlyLoginName = response.FriendlyIdentifierForDisplay;
                    // Use FormsAuthentication to tell ASP.NET that the user is now logged in,
                    // with the OpenID Claimed Identifier as their username.
                    FormsAuthentication.RedirectFromLoginPage(response.ClaimedIdentifier, false);
                    break;
                case AuthenticationStatus.Canceled:
                    this.loginCanceledLabel.Visible = true;
                    break;
                case AuthenticationStatus.Failed:
                    this.loginFailedLabel.Visible = true;
                    break;

                // We don't need to handle SetupRequired because we're not setting
                // IAuthenticationRequest.Mode to immediate mode.
                ////case AuthenticationStatus.SetupRequired:
                ////    break;
            }
        }
    }

    private OpenIdRelyingParty createRelyingParty()
    {
        OpenIdRelyingParty openid = new OpenIdRelyingParty();
        int minsha, maxsha, minversion;
        if (int.TryParse(Request.QueryString["minsha"], out minsha))
        {
            openid.SecuritySettings.MinimumHashBitLength = minsha;
        }
        if (int.TryParse(Request.QueryString["maxsha"], out maxsha))
        {
            openid.SecuritySettings.MaximumHashBitLength = maxsha;
        }
        if (int.TryParse(Request.QueryString["minversion"], out minversion))
        {
            switch (minversion)
            {
                case 1: openid.SecuritySettings.MinimumRequiredOpenIdVersion = ProtocolVersion.V10; break;
                case 2: openid.SecuritySettings.MinimumRequiredOpenIdVersion = ProtocolVersion.V20; break;
                default: throw new ArgumentOutOfRangeException("minversion");
            }
        }
        return openid;
    }

for the above code i always get

var claimsResponse = response.GetExtension<ClaimsResponse>();

I always get ClaimResponse = null. what is the reason for this. is there any requirement that is required to verify that open source code works correctly for RelyingParty? please give me an answer as soon as possible.

Answer 1

This is a repost of: https://stackoverflow.com/questions/1311726/claimsresponse-always-return-null . See this post for more details, but still ...