private void ProcessProviderResult() { ProviderName = OpenAuth.GetProviderNameFromCurrentRequest(); FedeFacebookClient.RewriteRequest(); InstagramClient.RewriteRequest(); GoogleOAuth2Client.RewriteRequest(); var redirectUrl = "~/ExternalLogin.aspx"; var returnUrl = Request.QueryString["ReturnUrl"]; if (!String.IsNullOrEmpty(returnUrl)) { redirectUrl += "?ReturnUrl=" + HttpUtility.UrlEncode(returnUrl); } var authResult = OpenAuth.VerifyAuthentication(redirectUrl); if (!authResult.IsSuccessful) { Title = "External login failed"; userNameForm.Visible = false; ModelState.AddModelError("Provider", String.Format("External login {0} failed.", ProviderDisplayName)); Trace.Warn("OpenAuth", String.Format("There was an error verifying authentication with {0})", ProviderName), authResult.Error); return; } ProviderName = authResult.Provider; ProviderUserId = authResult.ProviderUserId; ProviderUserName = authResult.UserName; Form.Action = ResolveUrl(redirectUrl); imgSocial.ImageUrl = AuthHelper.GetSocialImage(authResult); }