package com.vincent.rsf.server.common.utils;
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import com.vincent.rsf.framework.common.Cools;
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import lombok.extern.slf4j.Slf4j;
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import javax.servlet.http.HttpServletRequest;
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import java.net.Inet4Address;
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import java.net.InetAddress;
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import java.net.NetworkInterface;
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import java.util.Enumeration;
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/**
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* Created by vincent on 2020/8/6
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*/
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@Slf4j
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public class IpTools {
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public static String gainRealIp(HttpServletRequest request) {
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String ipAddress = "";
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try {
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if (request == null) {
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return ipAddress;
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}
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//排除本地测试
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if ("127.0.0.1".equals(request.getServerName()) || "localhost".equals(request.getServerName())) {
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ipAddress = "127.0.0.1";
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return ipAddress;
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}
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ipAddress = request.getRemoteAddr();
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if (Cools.isEmpty(ipAddress)) {
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ipAddress = request.getRemoteHost();
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} else {
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return ipAddress;
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}
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if (!Cools.isEmpty(ipAddress)) {
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return ipAddress;
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}
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// 获取真实ip,排除代理ip
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ipAddress = request.getHeader("Referer");
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// ipAddress = this.getRequest().getRemoteAddr();
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ipAddress = request.getHeader("X-Forwarded-For");
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if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
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ipAddress = request.getHeader("Proxy-Client-IP");
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}
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if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
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ipAddress = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
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// 更换niginx代理
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// ipAddress = request.getRemoteAddr();
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ipAddress = request.getHeader("X-Real-IP");
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if (ipAddress != null && (ipAddress.equals("" + "") || ipAddress.endsWith("0:0:0:0:0:0:0:1"))) {
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// 根据网卡取本机配置的IP
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// linux下也可以获取本地的ip地址
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Enumeration<?> allNetInterfaces = NetworkInterface.getNetworkInterfaces();
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InetAddress ip;
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while (allNetInterfaces.hasMoreElements()) {
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NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement();
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Enumeration<InetAddress> addresses = netInterface.getInetAddresses();
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while (addresses.hasMoreElements()) {
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ip = addresses.nextElement();
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if (ip instanceof Inet4Address) {
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// 获取真实的Ip地址
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ipAddress = ip.getHostAddress();
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}
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}
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}
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}
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}
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// 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"***.***.***.***".length()=15
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if (ipAddress != null && ipAddress.length() > 15) {
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if (ipAddress.indexOf(",") > 0) {
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ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
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}
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}
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} catch (Exception e) {
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log.warn("ip{},解析异常", ipAddress, e);
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}
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return ipAddress;
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}
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}
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