/*
 * SPDX-FileCopyrightText: 2023 jordi fita mas <jfita@peritasoft.com>
 * SPDX-License-Identifier: AGPL-3.0-only
 */

package http

import (
	"net"
	"net/http"
	"strings"
)

func RemoteAddr(r *http.Request) string {
	address, _, _ := net.SplitHostPort(r.RemoteAddr)
	if address != "localhost" && address != "127.0.0.1" && address != "::1" {
		return address
	}
	forwarded := r.Header.Get("X-Forwarded-For")
	if forwarded == "" {
		return address
	}
	ips := strings.Split(forwarded, ", ")
	forwarded = ips[0]
	if forwarded == "" {
		return address
	}
	return forwarded
}