com.github.fosin.cdp.util.ClientUtil Maven / Gradle / Ivy
package com.github.fosin.cdp.util;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.UnknownHostException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* ClientUtil class.
*
* @author 28860823
* @version $Id: $
*/
@Slf4j
public class ClientUtil {
/** Constant ERROR_IP="127.0.0.1" */
public final static String ERROR_IP = "127.0.0.1";
/** Constant PATTERN */
public final static Pattern PATTERN = Pattern.
compile("(2[5][0-5]|2[0-4]\\d|1\\d{2}|\\d{1,2})\\.(25[0-5]|2[0-4]\\d|1\\d{2}|\\d{1,2})\\.(25[0-5]|2[0-4]\\d|1\\d{2}|\\d{1,2})\\.(25[0-5]|2[0-4]\\d|1\\d{2}|\\d{1,2})");
/**
* 得到客户端真实IP地址
* 举例说明;
* request.getRemoteAddr() 192.168.239.196
* request.getHeader("X-Forwarded-For") 58.63.227.162, 192.168.237.178, 192.168.238.218
* request.getHeader("X-Real-IP") 192.168.238.218
* 所以访问的流程应该是这样，客户端58.63.227.162发出请求，经过192.168.237.178, 192.168.238.218两层转发，
* 到了192.168.239.196这台NGINX上，NGINX就把X-Real-IP头设成了自己看到的remote_addr，也就是直接发给到他的
* 192.168.238.218，这时候resin收到这个包，对resin来说直接发给他的remote_addr就是NGINX的ip，也就是192.168.239.196，
* 那么resin里面的request.getRemoteAddr()就是192.168.239.196，那么在resin里拿最原始的ip逻辑
* （也就是拿能够知道的最外层的ip）应该是这样：
*
* 如果XFF不为空，拿XFF的左边第一个
*
* 如果XFF为空，拿XRI
*
* 如果XRI为空，只能拿request.getRemoteAddr()，也就是只能拿到最直接发给他的机器ip了，
*
* @param request HttpServletRequest
* @return 客户端的一个IP
*/
public static String getClientOneIp(HttpServletRequest request) {
String ip = request.getHeader("X-Forwarded-For");
//优先从XFF中取
if (StringUtils.isNotEmpty(ip) && !"unKnown".equalsIgnoreCase(ip)) {
//多次反向代理后会有多个ip值，第一个ip才是真实ip
int index = ip.indexOf(",");
if (index != -1) {
return ip.substring(0, index);
} else {
return ip;
}
}
//其次从XRP中取
ip = request.getHeader("X-Real-IP");
if (StringUtils.isNotEmpty(ip) && !"unKnown".equalsIgnoreCase(ip)) {
return ip;
}
//最后从getRemoteAddr取
return request.getRemoteAddr();
}
/**
* 取外网IP
*
* @param request HttpServletRequest
* @return 客户端远程IP
*/
public static String getRemoteIp(HttpServletRequest request) {
String ip = request.getHeader("x-real-ip");
if (ip == null) {
ip = request.getRemoteAddr();
}
//过滤反向代理的ip
String[] stemps = ip.split(",");
if (stemps.length >= 1) {
//得到第一个IP，即客户端真实IP
ip = stemps[0];
}
ip = ip.trim();
if (ip.length() > 23) {
ip = ip.substring(0, 23);
}
return ip;
}
/**
* getLastIpSegment
*
* @param request a {@link javax.servlet.http.HttpServletRequest} object.
* @return a {@link java.lang.String} object.
*/
public static String getLastIpSegment(HttpServletRequest request) {
String ip = getClientOneIp(request);
if (ip != null) {
ip = ip.substring(ip.lastIndexOf('.') + 1);
} else {
ip = "0";
}
return ip;
}
/**
* isValidIP
*
* @param request a {@link javax.servlet.http.HttpServletRequest} object.
* @return a boolean.
*/
public static boolean isValidIP(HttpServletRequest request) {
String ip = getClientOneIp(request);
return isValidIP(ip);
}
/**
* 判断我们获取的ip是否是一个符合规则ip
*
* @param ip ip地址
* @return boolean
*/
public static boolean isValidIP(String ip) {
if (StringUtils.isEmpty(ip)) {
log.debug("ip is null. valid result is false");
return false;
}
Matcher matcher = PATTERN.matcher(ip);
boolean isValid = matcher.matches();
log.debug("valid ip:" + ip + " result is: " + isValid);
return isValid;
}
/**
* getLastServerIpSegment
*
* @return a {@link java.lang.String} object.
*/
public static String getLastServerIpSegment() {
String ip = getServerIP();
if (ip != null) {
ip = ip.substring(ip.lastIndexOf('.') + 1);
} else {
ip = "0";
}
return ip;
}
/**
* getServerIP
*
* @return a {@link java.lang.String} object.
*/
public static String getServerIP() {
InetAddress inet;
try {
inet = InetAddress.getLocalHost();
return inet.getHostAddress();
} catch (UnknownHostException e) {
e.printStackTrace();
}
return "127.0.0.1";
}
/**
* 获取mac地址
*
* @param ip ip地址
* @return mac地址
*/
public static String getMacAddress(String ip) {
String line;
String macAddress = "";
final String macAddressPrefix = "MAC";
final String loopbackAddress = "127.0.0.1 0:0:0:0:0:0:0:1";
try {
//如果为127.0.0.1,则获取本地MAC地址。
if (loopbackAddress.contains(ip)) {
InetAddress inetAddress = InetAddress.getLocalHost();
//貌似此方法需要JDK1.6。
NetworkInterface networkInterface = NetworkInterface.getByInetAddress(inetAddress);
byte[] mac = networkInterface.getHardwareAddress();
if (mac == null) {
return ip;
}
//下面代码是把mac地址拼装成String
StringBuilder sb = new StringBuilder();
for (int i = 0; i < mac.length; i++) {
if (i != 0) {
sb.append("-");
}
//mac[i] & 0xFF 是为了把byte转化为正整数
String s = Integer.toHexString(mac[i] & 0xFF);
sb.append(s.length() == 1 ? 0 + s : s);
}
//把字符串所有小写字母改为大写成为正规的mac地址并返回
macAddress = sb.toString().trim().toUpperCase();
return macAddress;
}
//获取非本地IP的MAC地址
Process p = Runtime.getRuntime().exec("nbtstat -A " + ip);
InputStreamReader isr = new InputStreamReader(p.getInputStream());
BufferedReader br = new BufferedReader(isr);
while ((line = br.readLine()) != null) {
int index = line.indexOf(macAddressPrefix);
if (index != -1) {
index = line.indexOf("=");
macAddress = line.substring(index + 1).trim().toUpperCase();
}
}
br.close();
} catch (IOException e) {
log.info("get mac address error, ip: " + ip);
return "";
}
return macAddress;
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy