package com.huimv.eartag.utils.ip;

import java.io.*;
import java.net.*;
import java.util.Enumeration;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @Project : huimv.shiwan
 * @Package : com.huimv.biosafety.uface.controller
 * @Description : TODO
 * @Version : 1.0
 * @Author : ZhuoNing
 * @Create : 2020-12-25
 **/
public class AddressUtils {
    /**
     * 获取本机的内网ip地址
     *
     * @return
     * @throws
     */
    public String getInnetIp() throws SocketException {
        String localip = null;// 本地IP，如果没有配置外网IP则返回它
        String netip = null;// 外网IP
        Enumeration<NetworkInterface> netInterfaces;
        netInterfaces = NetworkInterface.getNetworkInterfaces();
        InetAddress ip = null;
        boolean finded = false;// 是否找到外网IP
        while (netInterfaces.hasMoreElements() && !finded) {
            NetworkInterface ni = netInterfaces.nextElement();
            Enumeration<InetAddress> address = ni.getInetAddresses();
            while (address.hasMoreElements()) {
                ip = address.nextElement();
                if (!ip.isSiteLocalAddress()
                        &&!ip.isLoopbackAddress()
                        &&ip.getHostAddress().indexOf(":") == -1){// 外网IP
                    netip = ip.getHostAddress();
                    finded = true;
                    break;
                } else if (ip.isSiteLocalAddress()
                        &&!ip.isLoopbackAddress()
                        &&ip.getHostAddress().indexOf(":") == -1){// 内网IP
                    localip = ip.getHostAddress();
                }
            }
        }
        if (netip != null && !"".equals(netip)) {
            return netip;
        } else {
            return localip;
        }
    }

    /**
     * 获取本机的外网ip地址
     *
     * @return
     */
    public String getV4IP() {
        String ip = "";
        String chinaz = "http://ip.chinaz.com";

        StringBuilder inputLine = new StringBuilder();
        String read = "";
        URL url = null;
        HttpURLConnection urlConnection = null;
        BufferedReader in = null;
        try {
            url = new URL(chinaz);
            urlConnection = (HttpURLConnection) url.openConnection();
            in = new BufferedReader(new InputStreamReader(urlConnection.getInputStream(), "UTF-8"));
            while ((read = in.readLine()) != null) {
                inputLine.append(read + "\r\n");
            }
            //System.out.println(inputLine.toString());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        Pattern p = Pattern.compile("\\<dd class\\=\"fz24\">(.*?)\\<\\/dd>");
        Matcher m = p.matcher(inputLine.toString());
        if (m.find()) {
            String ipstr = m.group(1);
            ip = ipstr;
            //System.out.println(ipstr);
        }
        System.out.println("## ip>>"+ip);
        return ip;
    }


    /**
     * 解析ip地址
     *
     * 设置访问地址为http://ip.taobao.com/service/getIpInfo.php
     * 设置请求参数为ip=[已经获得的ip地址]
     * 设置解码方式为UTF-8
     *
     *
     * @param content   请求的参数 格式为：ip=192.168.1.101
     * @param encoding 服务器端请求编码。如GBK,UTF-8等
     * @return
     * @throws
     */
    public String getAddresses(String content, String encoding) throws UnsupportedEncodingException {
        //设置访问地址
        String urlStr = "http://ip.taobao.com/service/getIpInfo.php";
        // 从http://whois.pconline.com.cn取得IP所在的省市区信息
        String returnStr = this.getResult(urlStr, content, encoding);
        if (returnStr != null) {
            // 处理返回的省市区信息
            // System.out.println(returnStr);
            String[] temp = returnStr.split(",");
            if (temp.length < 3) {
                return "0";// 无效IP，局域网测试
            }

            String country = ""; //国家
            String area = ""; //地区
            String region = ""; //省份
            String city = ""; //市区
            String county = ""; //地区
            String isp = ""; //ISP公司
            for (int i = 0; i < temp.length; i++) {
                switch (i) {
                    case 2:
                        country = (temp[i].split(":"))[1].replaceAll("\"", "");
                        country = URLDecoder.decode(country, encoding);// 国家
                        break;
                    case 3:
                        area = (temp[i].split(":"))[1].replaceAll("\"", "");
                        area = URLDecoder.decode(area, encoding);// 地区
                        break;
                    case 4:
                        region = (temp[i].split(":"))[1].replaceAll("\"", "");
                        region = URLDecoder.decode(region, encoding);// 省份
                        break;
                    case 5:
                        city = (temp[i].split(":"))[1].replaceAll("\"", "");
                        city = URLDecoder.decode(city, encoding);// 市区
                        if ("内网IP".equals(city)) {
                            return "地址为：内网IP";
                        }
                        break;
                    case 6:
                        county = (temp[i].split(":"))[1].replaceAll("\"", "");
                        county = URLDecoder.decode(county, encoding);// 地区
                        break;
                    case 7:
                        isp = (temp[i].split(":"))[1].replaceAll("\"", "");
                        isp = URLDecoder.decode(isp, encoding); // ISP公司
                        break;
                }
            }
            return new StringBuffer("地址为：" + country + ",").append(region + "省,").append(city + "市,").append(county + ",").append("ISP公司：" + isp)
                    .toString();
        }
        return null;
    }


    /**
     * 访问目标地址并获取返回值
     *
     * @param urlStr   请求的地址
     * @param content  请求的参数 格式为：ip=192.168.1.101
     * @param encoding 服务器端请求编码。如GBK,UTF-8等
     * @return
     */
    private String getResult(String urlStr, String content, String encoding) {
        URL url = null;
        HttpURLConnection connection = null;
        try {
            url = new URL(urlStr);
            connection = (HttpURLConnection) url.openConnection();// 新建连接实例
            connection.setConnectTimeout(2000);// 设置连接超时时间，单位毫秒
            connection.setReadTimeout(33000);// 设置读取数据超时时间，单位毫秒
            connection.setDoOutput(true);// 是否打开输出流 true|false
            connection.setDoInput(true);// 是否打开输入流true|false
            connection.setRequestMethod("POST");// 提交方法POST|GET
            connection.setUseCaches(false);// 是否缓存true|false
            connection.connect();// 打开连接端口
            DataOutputStream out = new DataOutputStream(connection.getOutputStream());// 打开输出流往对端服务器写数据
            out.writeBytes(content);// 写数据,也就是提交你的表单 name=xxx&pwd=xxx
            out.flush();// 刷新
            out.close();// 关闭输出流
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), encoding));
            // 往对端写完数据对端服务器返回数据
            // ,以BufferedReader流来读取
            StringBuffer buffer = new StringBuffer();
            String line = "";
            while ((line = reader.readLine()) != null) {
                buffer.append(line);
            }
            reader.close();
            return buffer.toString();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (connection != null) {
                connection.disconnect();// 关闭连接
            }
        }
        return null;
    }


    /**
     * 测试方法
     * 获取本机的内网ip，外网ip和指定ip的地址
     *
     * @param args
     */
    public static void main(String[] args) {
        AddressUtils addressUtils = new AddressUtils();
        //step1.获得内网ip和外网ip，并输出到控制台
        String ip1 = "";
        try {
            ip1 = addressUtils.getInnetIp(); //局域网的ip地址，比如：192.168.1.101
        } catch (SocketException e1) {
            e1.printStackTrace();
        }
        System.out.println("内网ip:" + ip1);
        String ip2 = addressUtils.getV4IP(); //用于实际判断地址的ip
        System.out.println("外网ip:" + ip2);
        //step2.根据外网ip地址，得到市级地理位置
        String address = "";
        try {
            address = addressUtils.getAddresses("ip=" + ip2, "utf-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        // 输出地址，比如：中国，山东省，济南市，联通
        System.out.println("您的" + address);
        System.out.println("******************************");
        System.out.println("请输入想要查询的ip地址(输入exit退出)：");
        Scanner scan = new Scanner(System.in);
        String ip = "";
        while (!"exit".equals(ip = scan.next())) {
            try {
                address = addressUtils.getAddresses("ip=" + ip, "utf-8");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            // 输出地址，比如：中国，山东省，济南市，联通
            System.out.println(ip + "的" + address);
            System.out.println("******************************");
            System.out.println("请输入想要查询的ip地址(输入exit退出)：");
        }
        scan.close();
        System.out.println("再见");
    }

}
