facebook login still failing

[aspnet]

facebook login still failing

[Tratcher]

What error? Turn on logging and also capture a network trace.

#38

[YovavGad]

Make sure all the Microsoft.Owin DLLs were updated to the new version, and check the version of the DLLs in your final bin folder

[elraider33]

I already review it and this is what i got:
while in the version in the version 3.0.1 the returned values include first name, last name, email and others; in the version 3.1.0 the only returned values are the name and the Id. How can I have the other values?

Regards

[Tratcher]

See this comment about Fields:
#38 (comment)

[vpekarek]

Hi, I don't have problem with authentication from Facebook, but I have problem with reading identities, when I am getting back to my pages. I have code like this:

var ctx = Context.GetOwinContext();
var user = ctx != null ? ctx.Authentication.User : new ClaimsPrincipal();
if (user != null && user.Identities.Count() > 0 && user.Identity.IsAuthenticated && string.IsNullOrEmpty(loginProvider))
{
	var claimsPrincipal = new ClaimsPrincipal(user.Identity);
	Thread.CurrentPrincipal = claimsPrincipal;
	var identity = (ClaimsPrincipal)Thread.CurrentPrincipal;

	if (identity.Claims.Count() > 0)
	{
		switch (identity.Claims.First().OriginalIssuer)
		{
			case "Facebook":

				if (!featureExternalLoginFacebook) { break; }

				id = identity.Claims.Where(c => c.Type == "urn:facebook:id").Select(c => c.Value).SingleOrDefault();
				name = identity.Claims.Where(c => c.Type == ClaimTypes.Name).Select(c => c.Value).SingleOrDefault();
				accessToken = identity.Claims.Where(c => c.Type == "FacebookAccessToken").Select(c => c.Value).SingleOrDefault();

				var url = string.Format("https://graph.facebook.com/v2.5/{0}?fields=email,first_name,last_name&access_token={1}", id, accessToken);

				var req = WebRequest.Create(url);
				req.Method = "GET";
				req.ContentType = "application/json";

				using (var res = new StreamReader(req.GetResponse().GetResponseStream()))
				{
					dynamic result = Newtonsoft.Json.JsonConvert.DeserializeObject(res.ReadToEnd());

					if (result.id != null && result.id == id)
					{
						email = result.email != null ? result.email : string.Empty;
						firstName = result.first_name != null ? result.first_name : string.Empty;
						lastName = result.last_name != null ? result.last_name : string.Empty;
					}
				}                            

				break;
		}

		externalApp = identity.Claims.First().OriginalIssuer;

		if (!string.IsNullOrEmpty(id) && !string.IsNullOrEmpty(email))
		{
			return true;
		}
	}
}

This worked good before, but now, user.Identity has only windowsPrincipal. So user is authenticated in FB, but I can't read user e-mail and other info. Any tips?

[elraider33]

I was able to use the new version . Thanks for the help.