adfs integration for umbraco

CustomUmbracoDefaultOwinStartup.cs

[assembly: OwinStartup("CustomUmbracoDefaultOwinStartup", typeof(CustomUmbracoDefaultOwinStartup))]

namespace MockNamespace.Backend
{
    public class CustomUmbracoDefaultOwinStartup : UmbracoDefaultOwinStartup
    {
        private static string adfsMetadata = "https://sts-adfs-domain/federationmetadata/2007-06/federationmetadata.xml";
        private static string realm = "http://umbraco/dev";

        public override void Configuration(IAppBuilder app)
        {
            base.Configuration(app);

            app.SetDefaultSignInAsAuthenticationType(Umbraco.Core.Constants.Security.BackOfficeExternalAuthenticationType);

            app.UseCookieAuthentication(new CookieAuthenticationOptions() { });

            var wsFedOptions = new WsFederationAuthenticationOptions
            {
                Wtrealm = realm,
                MetadataAddress = adfsMetadata,
                SignInAsAuthenticationType = Umbraco.Core.Constants.Security.BackOfficeExternalAuthenticationType
            };

            wsFedOptions.ForUmbracoBackOffice("btn-microsoft", "fa-windows");

            //important, do this after calling "wsFedOptions.ForUmbracoBackOffice()" since this method 
            // overrides the AuthenticationType property
            wsFedOptions.AuthenticationType = "https://sts-adfs-domain/adfs/services/trust";

            wsFedOptions.SetExternalSignInAutoLinkOptions(new ExternalSignInAutoLinkOptions());
            wsFedOptions.Caption = "Enterprise account.";

            app.UseWsFederationAuthentication(wsFedOptions);
        }
    }
}