package com.jeesharp.business.modules.pay.core.kit;
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//
import jakarta.servlet.http.HttpServletRequest;

/**
 * @author Javen
 */
public class IpKit {
    public IpKit() {
    }

    public static String getRealIp(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }

        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }

        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }

        // 对于通过多个代理的情况，第一个 IP 为客户端真实 IP，多个IP按照','分割
        if (ip != null && ip.length() > 15) {
            if (ip.indexOf(",") > 0) {
                ip = ip.substring(0, ip.indexOf(","));
            }
        }
        return ip;
    }

    public static String getRealIpV2(HttpServletRequest request) {
        String accessIp= request.getHeader("x-forwarded-for");
        return null == accessIp ? request.getRemoteAddr() : accessIp;
    }
}
