/**
 * @author xichao.dong   
 * @email 406592176@qq.com
 * @date 2014-8-15 上午8:50:38 
 * @company (开发公司)    珠海市冰川软件有限公司
 * @copyright (版权)    本文件归属珠海市冰川软件有限公司所有
 * @version V1.0
 * @modify (修改) : 2014-8-15 上午8:50:38  xichao.dong 
 * @Review (审核人) ：xichao.dong 
 */
package com.glacier.basic.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;

import javax.servlet.http.HttpServletRequest;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;

/**
 * @ClassName: IpUtil 
 * @Description: TODO(IP获取器) 
 * @author xichao.dong	
 * @email 406592176@qq.com
 * @date 2014-8-15 上午11:15:40
 */
public class IpUtil {

    /**
     * 获取登录用户的IP地址
     * 
     * @param request
     * @return
     */
    public static String getIpAddr(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();
        }
        if (ip.split(",").length > 1) {
            ip = ip.split(",")[0];
        }
        return ip;
    }

    /**
     * 通过IP获取地址(需要联网，调用淘宝的IP库)
     * 
     * @param ip
     * @return
     */
    public static String getIpInfo(String ip) {
        String info = "[";
        if (ip.equals("0:0:0:0:0:0:0:1") || ip.equals("127.0.0.1")) {
            return  "[本地]";
        }
        try {
            URL url = new URL("http://ip.taobao.com/service/getIpInfo.php?ip=" + ip);
            HttpURLConnection htpcon = (HttpURLConnection) url.openConnection();
            htpcon.setRequestMethod("GET");
            htpcon.setDoOutput(true);
            htpcon.setDoInput(true);
            htpcon.setUseCaches(false);

            InputStream in = htpcon.getInputStream();
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(in));
            StringBuffer temp = new StringBuffer();
            String line = bufferedReader.readLine();
            while (line != null) {
                temp.append(line).append("\r\n");
                line = bufferedReader.readLine();
            }
            bufferedReader.close();
            JSONObject obj = (JSONObject) JSON.parse(temp.toString());
            if (obj.getIntValue("code") == 0) {
                JSONObject data = obj.getJSONObject("data");
                info += data.getString("country") + " ";
                info += data.getString("region") + " ";
                info += data.getString("city") + " ";
                info += data.getString("isp");
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (ProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return info += "]";
    }

}