package com.app.mvc.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;
/**
* Created by jimin on 15/11/5.
*/
@Slf4j
public class IpUtil {
public final static String ERROR_IP = "127.0.0.1";
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})");
/**
* 取外网IP
*
* @param request
* @return
*/
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 != null && 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;
}
/**
* 获取用户的真实ip
*
* @param request
* @return
*/
public static String getUserIP(HttpServletRequest request) {
// 优先取X-Real-IP
String ip = request.getHeader("X-Real-IP");
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("x-forwarded-for");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
if ("0:0:0:0:0:0:0:1".equals(ip)) {
ip = ERROR_IP;
}
}
if ("unknown".equalsIgnoreCase(ip)) {
ip = ERROR_IP;
return ip;
}
int pos = ip.indexOf(',');
if (pos >= 0) {
ip = ip.substring(0, pos);
}
return ip;
}
public static String getLastIpSegment(HttpServletRequest request) {
String ip = getUserIP(request);
if (ip != null) {
ip = ip.substring(ip.lastIndexOf('.') + 1);
} else {
ip = "0";
}
return ip;
}
public static boolean isValidIP(HttpServletRequest request) {
String ip = getUserIP(request);
return isValidIP(ip);
}
/**
* 判断我们获取的ip是否是一个符合规则ip
*
* @param ip
* @return
*/
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;
}
public static String getLastServerIpSegment() {
String ip = getServerIP();
if (ip != null) {
ip = ip.substring(ip.lastIndexOf('.') + 1);
} else {
ip = "0";
}
return ip;
}
public static String getServerIP() {
InetAddress inet;
try {
inet = InetAddress.getLocalHost();
String hostAddress = inet.getHostAddress();
return hostAddress;
} catch (UnknownHostException e) {
e.printStackTrace();
}
return "127.0.0.1";
}
/**
* 获取mac地址
*
* @param ip
* @return
*/
public static String getMACAddress(String ip) {
String line = "";
String macAddress = "";
final String MAC_ADDRESS_PREFIX = "MAC";
final String LOOPBACK_ADDRESS = "127.0.0.1";
try {
//如果为127.0.0.1,则获取本地MAC地址。
if (LOOPBACK_ADDRESS.equals(ip)) {
InetAddress inetAddress = InetAddress.getLocalHost();
//貌似此方法需要JDK1.6。
NetworkInterface networkInterface = NetworkInterface.getByInetAddress(inetAddress);
byte[] mac = networkInterface.getHardwareAddress();
if (networkInterface == null || mac == null) {
return "127.0.0.1";
}
//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) {
if (line != null) {
int index = line.indexOf(MAC_ADDRESS_PREFIX);
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;
}
}