Require Login Before Product View

//Require that users are logged in before they can view any product pages (redirects to a page called "login")
add_filter("foxyshop_template_redirect", "my_logged_in_users_only", 10, 2);
function my_logged_in_users_only($url, $filename) {
    if (!is_user_logged_in()) {
        header("Location: /login/");
        die;
    }
    return $url;
}