311 lines
9.8 KiB
C#
311 lines
9.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO;
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using System.Text.RegularExpressions;
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using System.Collections;
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using System.Web;
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namespace Mtxfw.Utility
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{
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public class IPScanner
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{
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#region 私有成员
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private string dataPath;
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private string ip;
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private string country;
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private string local;
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private long firstStartIp = 0;
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private long lastStartIp = 0;
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private FileStream objfs = null;
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private long startIp = 0;
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private long endIp = 0;
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private int countryFlag = 0;
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private long endIpOff = 0;
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private string errMsg = null;
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#endregion
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#region 构造函数
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public IPScanner()
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{
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//
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// TODO: 在此处添加构造函数逻辑
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//
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}
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#endregion
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#region 公共属性
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public string DataPath
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{
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set { dataPath = value; }
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}
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public string IP
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{
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set { ip = value; }
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}
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public string Country
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{
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get { return country; }
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}
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public string Local
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{
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get { return local; }
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}
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public string ErrMsg
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{
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get { return errMsg; }
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}
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#endregion
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#region 搜索匹配数据
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private int QQwry()
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{
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string pattern = @"(((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5]))\.){3}((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5]))";
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Regex objRe = new Regex(pattern);
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Match objMa = objRe.Match(ip);
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if (!objMa.Success)
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{
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this.errMsg = "IP格式错误";
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return 4;
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}
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long ip_Int = this.IpToInt(ip);
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int nRet = 0;
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if (ip_Int >= IpToInt("127.0.0.0") && ip_Int <= IpToInt("127.255.255.255"))
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{
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this.country = "本机内部环回地址";
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this.local = "";
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nRet = 1;
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}
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else if ((ip_Int >= IpToInt("0.0.0.0") && ip_Int <= IpToInt("2.255.255.255")) || (ip_Int >= IpToInt("64.0.0.0") && ip_Int <= IpToInt("126.255.255.255")) || (ip_Int >= IpToInt("58.0.0.0") && ip_Int <= IpToInt("60.255.255.255")))
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{
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this.country = "网络保留地址";
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this.local = "";
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nRet = 1;
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}
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objfs = new FileStream(this.dataPath, FileMode.Open, FileAccess.Read);
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try
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{
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//objfs.Seek(0,SeekOrigin.Begin);
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objfs.Position = 0;
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byte[] buff = new Byte[8];
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objfs.Read(buff, 0, 8);
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firstStartIp = buff[0] + buff[1] * 256 + buff[2] * 256 * 256 + buff[3] * 256 * 256 * 256;
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lastStartIp = buff[4] * 1 + buff[5] * 256 + buff[6] * 256 * 256 + buff[7] * 256 * 256 * 256;
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long recordCount = Convert.ToInt64((lastStartIp - firstStartIp) / 7.0);
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if (recordCount <= 1)
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{
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country = "FileDataError";
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objfs.Close();
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return 2;
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}
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long rangE = recordCount;
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long rangB = 0;
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long recNO = 0;
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while (rangB < rangE - 1)
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{
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recNO = (rangE + rangB) / 2;
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this.GetStartIp(recNO);
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if (ip_Int == this.startIp)
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{
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rangB = recNO;
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break;
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}
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if (ip_Int > this.startIp)
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rangB = recNO;
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else
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rangE = recNO;
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}
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this.GetStartIp(rangB);
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this.GetEndIp();
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if (this.startIp <= ip_Int && this.endIp >= ip_Int)
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{
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this.GetCountry();
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this.local = this.local.Replace("（我们一定要解放台湾！！！）", "");
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}
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else
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{
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nRet = 3;
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this.country = "未知";
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this.local = "";
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}
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objfs.Close();
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return nRet;
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}
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catch
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{
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return 1;
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}
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}
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#endregion
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#region IP地址转换成Int数据
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private long IpToInt(string ip)
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{
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char[] dot = new char[] { '.' };
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string[] ipArr = ip.Split(dot);
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if (ipArr.Length == 3)
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ip = ip + ".0";
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ipArr = ip.Split(dot);
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long ip_Int = 0;
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long p1 = long.Parse(ipArr[0]) * 256 * 256 * 256;
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long p2 = long.Parse(ipArr[1]) * 256 * 256;
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long p3 = long.Parse(ipArr[2]) * 256;
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long p4 = long.Parse(ipArr[3]);
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ip_Int = p1 + p2 + p3 + p4;
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return ip_Int;
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}
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#endregion
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#region int转换成IP
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private string IntToIP(long ip_Int)
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{
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long seg1 = (ip_Int & 0xff000000) >> 24;
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if (seg1 < 0)
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seg1 += 0x100;
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long seg2 = (ip_Int & 0x00ff0000) >> 16;
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if (seg2 < 0)
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seg2 += 0x100;
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long seg3 = (ip_Int & 0x0000ff00) >> 8;
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if (seg3 < 0)
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seg3 += 0x100;
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long seg4 = (ip_Int & 0x000000ff);
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if (seg4 < 0)
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seg4 += 0x100;
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string ip = seg1.ToString() + "." + seg2.ToString() + "." + seg3.ToString() + "." + seg4.ToString();
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return ip;
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}
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#endregion
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#region 获取起始IP范围
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private long GetStartIp(long recNO)
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{
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long offSet = firstStartIp + recNO * 7;
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//objfs.Seek(offSet,SeekOrigin.Begin);
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objfs.Position = offSet;
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byte[] buff = new Byte[7];
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objfs.Read(buff, 0, 7);
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endIpOff = Convert.ToInt64(buff[4].ToString()) + Convert.ToInt64(buff[5].ToString()) * 256 + Convert.ToInt64(buff[6].ToString()) * 256 * 256;
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startIp = Convert.ToInt64(buff[0].ToString()) + Convert.ToInt64(buff[1].ToString()) * 256 + Convert.ToInt64(buff[2].ToString()) * 256 * 256 + Convert.ToInt64(buff[3].ToString()) * 256 * 256 * 256;
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return startIp;
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}
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#endregion
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#region 获取结束IP
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private long GetEndIp()
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{
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//objfs.Seek(endIpOff,SeekOrigin.Begin);
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objfs.Position = endIpOff;
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byte[] buff = new Byte[5];
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objfs.Read(buff, 0, 5);
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this.endIp = Convert.ToInt64(buff[0].ToString()) + Convert.ToInt64(buff[1].ToString()) * 256 + Convert.ToInt64(buff[2].ToString()) * 256 * 256 + Convert.ToInt64(buff[3].ToString()) * 256 * 256 * 256;
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this.countryFlag = buff[4];
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return this.endIp;
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}
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#endregion
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#region 获取国家/区域偏移量
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private string GetCountry()
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{
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switch (this.countryFlag)
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{
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case 1:
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case 2:
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this.country = GetFlagStr(this.endIpOff + 4);
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this.local = (1 == this.countryFlag) ? " " : this.GetFlagStr(this.endIpOff + 8);
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break;
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default:
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this.country = this.GetFlagStr(this.endIpOff + 4);
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this.local = this.GetFlagStr(objfs.Position);
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break;
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}
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return " ";
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}
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#endregion
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#region 获取国家/区域字符串
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private string GetFlagStr(long offSet)
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{
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int flag = 0;
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byte[] buff = new Byte[3];
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while (1 == 1)
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{
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//objfs.Seek(offSet,SeekOrigin.Begin);
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objfs.Position = offSet;
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flag = objfs.ReadByte();
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if (flag == 1 || flag == 2)
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{
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objfs.Read(buff, 0, 3);
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if (flag == 2)
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{
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this.countryFlag = 2;
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this.endIpOff = offSet - 4;
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}
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offSet = Convert.ToInt64(buff[0].ToString()) + Convert.ToInt64(buff[1].ToString()) * 256 + Convert.ToInt64(buff[2].ToString()) * 256 * 256;
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}
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else
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{
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break;
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}
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}
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if (offSet < 12)
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return " ";
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objfs.Position = offSet;
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return GetStr();
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}
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#endregion
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#region GetStr
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private string GetStr()
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{
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byte lowC = 0;
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byte upC = 0;
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string str = "";
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byte[] buff = new byte[2];
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while (1 == 1)
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{
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lowC = (Byte)objfs.ReadByte();
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if (lowC == 0)
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break;
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if (lowC > 127)
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{
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upC = (byte)objfs.ReadByte();
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buff[0] = lowC;
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buff[1] = upC;
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System.Text.Encoding enc = System.Text.Encoding.GetEncoding("GB2312");
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str += enc.GetString(buff);
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}
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else
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{
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str += (char)lowC;
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}
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}
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return str;
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}
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#endregion
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#region 获取IP地址
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public string IPLocation()
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{
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this.QQwry();
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return this.country + this.local;
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}
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public string IPLocation(string dataPath, string ip)
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{
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this.dataPath = dataPath;
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this.ip = ip;
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this.QQwry();
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return this.country + this.local;
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}
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#endregion
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}
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}
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