Function remoteAddr

proxy/serverhttps.go:349–369

remoteAddr returns the real client's address and the IP address of the latest proxy server if any.

(r *http.Request, l *slog.Logger)

// remoteAddr returns the real client's address and the IP address of the latest
// proxy server if any.
func remoteAddr(r *http.Request, l *slog.Logger) (addr, prx netip.AddrPort, err error) {
	host, err := netip.ParseAddrPort(r.RemoteAddr)
	if err != nil {
		return netip.AddrPort{}, netip.AddrPort{}, err
	}

	realIP, err := realIPFromHdrs(r)
	if err != nil {
		l.Debug("getting ip address from http request", slogutil.KeyError, err)

		return host, netip.AddrPort{}, nil
	}

	l.Debug("using ip address from http request", "addr", realIP)

	// TODO(a.garipov): Add port if we can get it from headers like X-Real-Port,
	// X-Forwarded-Port, etc.
	addr = netip.AddrPortFrom(realIP, 0)

	return addr, host, nil
}