public virtual void SignIn(ISignInContext context) { ClaimsIdentity identity; if (SecurityHelper.LookupSignIn(context.Identities, BaseOptions.AuthenticationType, out identity)) { SignInIdentityContext = new SignInIdentityContext(identity, new AuthenticationProperties(context.Properties)); SignOutContext = null; context.Accept(BaseOptions.AuthenticationType, BaseOptions.Description.Dictionary); } if (PriorHandler != null) { PriorHandler.SignIn(context); } }