.NET 读取 QQWry.Dat纯真版IP数据文件

最新推荐文章于 2021-03-09 17:50:16 发布

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最新推荐文章于 2021-03-09 17:50:16 发布

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/koolay/articles/1068046.html

本文介绍了一个基于C#的IP定位扫描器实现，该工具通过解析QQwry.dat文件来确定IP地址对应的地理位置信息，包括国家和地区。文章提供了完整的源代码，并展示了如何使用此工具进行IP定位。

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using System;

using System.IO;

using System.Collections;

using System.Text;

using System.Text.RegularExpressions;

namespace PPTech.WebSite.BusinessRules

{

/**//**//**//// <summary>

/// to scan the ip location from qqwry.dat

/// </summary>

public class IPScaner

{

//私有成员

私有成员#region 私有成员

private string dataPath;

private string ip;

private string country;

private string local;

private long firstStartIp=0;

private long lastStartIp=0;

private FileStream objfs = null;

private long startIp=0;

private long endIp=0;

private int countryFlag=0;

private long endIpOff=0;

private string errMsg=null;

#endregion

//构造函数

构造函数#region 构造函数

public IPScaner()

{

// TODO: 在此处添加构造函数逻辑

}

#endregion

//公共属性

公共属性#region 公共属性

public string DataPath

{

set

{dataPath=value;}

}

public string IP

{

set

{ip=value;}

}

public string Country

{

get

{return country;}

}

public string Local

{

get

{return local;}

}

public string ErrMsg

{

get

{return errMsg;}

}

#endregion

//搜索匹配数据

搜索匹配数据#region 搜索匹配数据

private int QQwry()

{

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]))";

Regex objRe = new Regex(pattern);

Match objMa = objRe.Match(ip);

if(!objMa.Success)

{

this.errMsg="IP格式错误";

return 4;

}

long ip_Int = this.IpToInt(ip);

int nRet=0;

if(ip_Int>=IpToInt("127.0.0.0")&&ip_Int<=IpToInt("127.255.255.255"))

{

this.country="本机内部环回地址";

this.local="";

nRet=1;

}

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")))

{

this.country="网络保留地址";

this.local="";

nRet=1;

}

objfs = new FileStream(this.dataPath, FileMode.Open, FileAccess.Read);

try

{

//objfs.Seek(0,SeekOrigin.Begin);

objfs.Position=0;

byte[] buff = new Byte[8] ;

objfs.Read(buff,0,8);

firstStartIp=buff[0]+buff[1]*256+buff[2]*256*256+buff[3]*256*256*256;

lastStartIp=buff[4]*1+buff[5]*256+buff[6]*256*256+buff[7]*256*256*256;

long recordCount=Convert.ToInt64((lastStartIp-firstStartIp)/7.0);

if(recordCount<=1)

{

country="FileDataError";

objfs.Close();

return 2;

}

long rangE=recordCount;

long rangB=0;

long recNO=0;

while(rangB<rangE-1)

{

recNO=(rangE+rangB)/2;

this.GetStartIp(recNO);

if(ip_Int==this.startIp)

{

rangB = recNO;

break;

}

if(ip_Int>this.startIp)

rangB=recNO;

else

rangE=recNO;

}

this.GetStartIp(rangB);

this.GetEndIp();

if(this.startIp<=ip_Int&&this.endIp>=ip_Int)

{

this.GetCountry();

this.local=this.local.Replace("（我们一定要解放台湾！！！）","");

}

else

{

nRet=3;

this.country="未知";

this.local="";

}

objfs.Close();

return nRet;

}

catch

{

return 1;

}

#endregion

//IP地址转换成Int数据

IP地址转换成Int数据#region IP地址转换成Int数据

private long IpToInt(string ip)

{

char[] dot = new char[]

{'.'};

string [] ipArr = ip.Split(dot);

if(ipArr.Length==3)

ip=ip+".0";

ipArr=ip.Split(dot);

long ip_Int=0;

long p1=long.Parse(ipArr[0])*256*256*256;

long p2=long.Parse(ipArr[1])*256*256;

long p3=long.Parse(ipArr[2])*256;

long p4=long.Parse(ipArr[3]);

ip_Int=p1+p2+p3+p4;

return ip_Int;

}

#endregion

//int转换成IP

int转换成IP#region int转换成IP

private string IntToIP(long ip_Int)

{

long seg1=(ip_Int&0xff000000)>>24;

if(seg1<0)

seg1+=0x100;

long seg2=(ip_Int&0x00ff0000)>>16;

if(seg2<0)

seg2+=0x100;

long seg3=(ip_Int&0x0000ff00)>>8;

if(seg3<0)

seg3+=0x100;

long seg4=(ip_Int&0x000000ff);

if(seg4<0)

seg4+=0x100;

string ip=seg1.ToString()+"."+seg2.ToString()+"."+seg3.ToString()+"."+seg4.ToString();

return ip;

}

#endregion

//获取起始IP范围

获取起始IP范围#region 获取起始IP范围

private long GetStartIp(long recNO)

{

long offSet = firstStartIp+recNO*7;

//objfs.Seek(offSet,SeekOrigin.Begin);

objfs.Position=offSet;

byte [] buff = new Byte[7];

objfs.Read(buff,0,7);

endIpOff=Convert.ToInt64(buff[4].ToString())+Convert.ToInt64(buff[5].ToString())*256+Convert.ToInt64(buff[6].ToString())*256*256;

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;

return startIp;

}

#endregion

//获取结束IP

获取结束IP#region 获取结束IP

private long GetEndIp()

{

//objfs.Seek(endIpOff,SeekOrigin.Begin);

objfs.Position=endIpOff;

byte [] buff = new Byte[5];

objfs.Read(buff,0,5);

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;

this.countryFlag=buff[4];

return this.endIp;

}

#endregion

//获取国家/区域偏移量

获取国家/区域偏移量#region 获取国家/区域偏移量

private string GetCountry()

{

switch(this.countryFlag)

{

case 1:

case 2: