Obtener dirección de correo electrónico del proveedor de OpenID con DotNetOpenAuth

Question

No puedo obtener la dirección de correo electrónico devuelta en el método GetExtension, pero está incluida en la URL que Google (el OP con el que estoy probando) me envía de vuelta.

if (Page.IsPostBack) 
{ 
    using (var openid = new OpenIdRelyingParty()) 
    { 
     var request = openid.CreateRequest(Request.Form["openid_identifier"]); 

     var fetch = new FetchRequest(); 
     fetch.Attributes.Add(new AttributeRequest(WellKnownAttributes.Contact.Email, true)); 

     request.AddExtension(fetch); 

     request.RedirectToProvider(); 
    } 
} 
else 
{ 
    using (var openid = new OpenIdRelyingParty()) 
    { 
     var response = openid.GetResponse(); 
     if (response != null) 
     { 
      switch (response.Status) 
      { 
       case AuthenticationStatus.Authenticated: 
        var claimsResponse = response.GetExtension<FetchRequest>(); 
        break; 
       case AuthenticationStatus.Canceled: 
        //this.loginCanceledLabel.Visible = true; 
        break; 
       case AuthenticationStatus.SetupRequired: 
        //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; 
      } 
     } 
    } 
} 

¿Alguien sabe qué pasa?

Answer 1

Prueba el siguiente código:

switch (response.Status) 
{ 
    case AuthenticationStatus.Authenticated: 
     var fetch = response.GetExtension<FetchResponse>(); 
     string email = String.Empty; 
     if (fetch != null) 
     { 
      email = fetch.GetAttributeValue(WellKnownAttributes.Contact.Email); 
     } 
     break; 
    //... 
} 

Answer 2

Ninguna de las anteriores trabajado para mí (a través de PayPal Access como un identificador) en C#

La continuación trabajó para mí:

OpenIdRelyingParty openid = new OpenIdRelyingParty(); 

    protected void Page_Load(object sender, EventArgs e) 
    { 
     var response = openid.GetResponse(); 

     if (response != null) 
     { 
      switch (response.Status) 
      { 
       case AuthenticationStatus.Authenticated: 

        if (this.Request.Params["openid.ext1.value.alias1"] != null) 
        { 
         Response.Write(this.Request.Params["openid.ext1.value.alias1"]); 
         Response.Write(this.Request.Params["openid.ext1.value.alias2"]); 
        } 
        else { 
         Response.Write("Alias wrong"); 
        } 
        break; 
      } 
     } 
    } 
    protected void loginButton_Click(object sender, EventArgs e) 
    { 

     var openidRequest = openid.CreateRequest(openIdBox.Text); 
     var fetch = new FetchRequest(); 

     fetch.Attributes.AddRequired(WellKnownAttributes.Contact.Email); 
     fetch.Attributes.AddRequired(WellKnownAttributes.Name.FullName); 
     openidRequest.AddExtension(fetch); 

     openidRequest.RedirectToProvider(); 

    }