static int serveHttp_cookieHandling_defaultDays = 365;
static S serveHttp_cookieHandling_defaultCookieName = "cookie";
sbool serveHttp_cookieHandling_verbose;

// returns cookie (may be empty if client doesn't accept cookies)
static S serveHttp_cookieHandling() {
  NanoHTTPD.IHTTPSession session = NanoHTTPD.currentSession.get();
  NanoHTTPD.CookieHandler cookies = session.getCookies();
  S cookie = cookies.read("cookie");
  if (cookie == null) {
    if (empty((S) mapGet(MyHTTPD_headers!, "x-no-cookies"))) {
      cookie = randomID(20);
      if (serveHttp_cookieHandling_verbose)
        print("New cookie.");
    }
  }
  if (serveHttp_cookieHandling_verbose)
    print("Cookie: " + cookie);
  if (nempty(cookie))
    cookies.set("cookie", cookie, serveHttp_cookieHandling_defaultDays);
  ret cookie; 
}