Google Analytics C# MVC Local hosting snippet

Google Analytics C# MVC Local hosting snippet

    public class MvcApplication : System.Web.HttpApplication
    {
        private static object ga_lock_ = new {};
        private static bool ga_refreshed_ = false;

        private void Application_BeginRequest(object sender, EventArgs e)
        {
            if (!ga_refreshed_) {
                lock(ga_lock_) {
                    Response.CacheControl = "public";
                    Response.Expires = minutes;
                    if (!ga_refreshed_ && application.Context.Request.FilePath.ToLower() == "/scripts/ga.js") {
                        int minutes = 60 * 24 * 15;
                        using (WebClient client = new WebClient())
                        {
                            client.DownloadFile("http://www.google-analytics.com/analytics.js", Server.MapPath("/Scripts/ga.js"));
                        }
                        ga_refreshed_ = true;
                    }
                }
            }
        }
    }