export function getRealIP(request, server) {
  let ip = request.headers.get('x-forwarded-for') || request.headers.get('x-real-ip');
  if (ip?.includes(',')) ip = ip.split(',')[0].trim();
  if (!ip && server) {
    ip = server.remoteAddress;
  }
  if (!ip) {
    const url = new URL(request.url);
    ip = url.hostname;
  }
  if (ip?.startsWith('::ffff:')) ip = ip.slice(7);
  return ip;
}