/**
 * Copyright © 2015-2018 ODM All rights reserved.
 */
package com.thinkgem.jeesite.common.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * MAC地址工具
 * 
 * @author ThinkGem
 * @version 2013-12-21
 */
public class MacUtils {

	/**
	 * 获取当前操作系统名称. return 操作系统名称 例如:windows,Linux,Unix等.
	 */
	public static String getOSName() {
		return System.getProperty("os.name").toLowerCase();
	}

	/**
	 * 获取Unix网卡的mac地址.
	 * 
	 * @return mac地址
	 */
	public static String getUnixMACAddress() {
		String mac = null;
		BufferedReader bufferedReader = null;
		Process process = null;
		try {
			/**
			 * Unix下的命令，一般取eth0作为本地主网卡 显示信息中包含有mac地址信息
			 */
			process = Runtime.getRuntime().exec("ifconfig eth0");
			bufferedReader = new BufferedReader(new InputStreamReader(
					process.getInputStream()));
			String line = null;
			int index = -1;
			while ((line = bufferedReader.readLine()) != null) {
				/**
				 * 寻找标示字符串[hwaddr]
				 */
				index = line.toLowerCase().indexOf("hwaddr");
				/**
				 * 找到了
				 */
				if (index != -1) {
					/**
					 * 取出mac地址并去除2边空格
					 */
					mac = line.substring(index + "hwaddr".length() + 1).trim();
					break;
				}
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (bufferedReader != null) {
					bufferedReader.close();
				}
			} catch (IOException e1) {
				e1.printStackTrace();
			}
			bufferedReader = null;
			process = null;
		}

		return mac;
	}

	/**
	 * 获取Linux网卡的mac地址.
	 * 
	 * @return mac地址
	 */
	public static String getLinuxMACAddress() {
		String mac = null;
		BufferedReader bufferedReader = null;
		Process process = null;
		try {
			/**
			 * linux下的命令，一般取eth0作为本地主网卡 显示信息中包含有mac地址信息
			 */
			process = Runtime.getRuntime().exec("ifconfig eth0");
			bufferedReader = new BufferedReader(new InputStreamReader(
					process.getInputStream()));
			String line = null;
			int index = -1;
			while ((line = bufferedReader.readLine()) != null) {
				index = line.toLowerCase().indexOf("硬件地址");
				/**
				 * 找到了
				 */
				if (index != -1) {
					/**
					 * 取出mac地址并去除2边空格
					 */
					mac = line.substring(index + 4).trim();
					break;
				}
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (bufferedReader != null) {
					bufferedReader.close();
				}
			} catch (IOException e1) {
				e1.printStackTrace();
			}
			bufferedReader = null;
			process = null;
		}
		
		// 取不到，试下Unix取发
		if (mac == null){
			return getUnixMACAddress();
		}

		return mac;
	}

	/**
	 * 获取widnows网卡的mac地址.
	 * 
	 * @return mac地址
	 */
	public static String getWindowsMACAddress() {
		String mac = null;
		BufferedReader bufferedReader = null;
		Process process = null;
		try {
			/**
			 * windows下的命令，显示信息中包含有mac地址信息
			 */
			process = Runtime.getRuntime().exec("ipconfig /all");
			bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
			String line = null;
			int index = -1;
			while ((line = bufferedReader.readLine()) != null) {
				/**
				 * 寻找标示字符串[physical address]
				 */
//				index = line.toLowerCase().indexOf("physical address");
//				if (index != -1) {
				if (line.split("-").length == 6){
					index = line.indexOf(":");
					if (index != -1) {
						/**
						 * 取出mac地址并去除2边空格
						 */
						mac = line.substring(index + 1).trim();
					}
					break;
				}
				index = line.toLowerCase().indexOf("物理地址");
				if (index != -1) {
					index = line.indexOf(":");
					if (index != -1) {
						/**
						 * 取出mac地址并去除2边空格
						 */
						mac = line.substring(index + 1).trim();
					}
					break;
				}
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (bufferedReader != null) {
					bufferedReader.close();
				}
			} catch (IOException e1) {
				e1.printStackTrace();
			}
			bufferedReader = null;
			process = null;
		}

		return mac;
	}

	/**
	 * 获取widnows客户端网卡的mac地址.
	 * 
	 * @return mac地址
	 */
	public String getLocalWindowsMAC(String ip) {
		//获取网卡，获取地址
		String macAddr = null;
	    try {
	        Process process = Runtime.getRuntime().exec("nbtstat -a " + ip);
	        BufferedReader br = new BufferedReader(
	                new InputStreamReader(process.getInputStream()));
	        Pattern pattern = Pattern.compile("([A-F0-9]{2}-){5}[A-F0-9]{2}");
	        Matcher matcher;
	        for (String strLine = br.readLine(); strLine != null;
	            strLine = br.readLine()) {
	            matcher = pattern.matcher(strLine);
	            if (matcher.find()) {
	                macAddr = matcher.group();
	                break;
	            }
	        }
	    } catch (IOException e) {
	        e.printStackTrace();
	    }
	    return macAddr;
	}
	
//	public static String getMac(){
//		String os = getOSName();
//		String mac;
//		if (os.startsWith("windows")) {
//			mac = getWindowsMACAddress();
//		} else if (os.startsWith("linux")) {
//			mac = getLinuxMACAddress();
//		} else {
//			mac = getUnixMACAddress();
//		}
//		return mac == null ? "" : mac;
//	}
	
	/**
	 * 测试用的main方法.
	 * 
	 * @param argc 运行参数.
	 */
//	public static void main(String[] argc) {
//		String os = getOSName();
//		System.out.println("os: " + os);
//		if (os.startsWith("windows")) {
//			String mac = getWindowsMACAddress();
//			System.out.println("mac: " + mac);
//		} else if (os.startsWith("linux")) {
//			String mac = getLinuxMACAddress();
//			System.out.println("mac: " + mac);
//		} else {
//			String mac = getUnixMACAddress();
//			System.out.println("mac: " + mac);
//		}
//	}

}