FSClient.Sofia.tls_cert_exist_check C# (CSharp) Method

        private bool tls_cert_exist_check()
        {
            String base_dir = FieldValue.GetByName(values, "tls-cert-dir").value;
            if (String.IsNullOrWhiteSpace(base_dir))
                base_dir = "conf/ssl";
            //this is what freeswitch uses by default if its empty, if this changes this code needs to be updated
            base_dir = base_dir.Replace('/', '\\'); //windows file path
            if (base_dir[base_dir.Length - 1] != '\\')
                base_dir += '\\';
            if (!System.IO.File.Exists(base_dir + "cafile.pem")) {
                MessageBox.Show("Your sofia settings have TLS enabled however you do not have a cafile.pem in your cert folder, this will most likely cause the entire softphone profile not to load so I am disabling TLS in the profile for now");
                return false;
            }
            return true;
        }