.NET读取QQWry.Dat纯真版ip数据库格式数据源

.NET读取QQWry.Dat纯真版ip数据库格式数据源 ï??.NETè??å•?QQWry.Dat çº?真版ipæ??æ??åº?æ ?å??æ??æ??æº? å??éƒ?è?ƒç??ï?š //测è??åœ?å??æ?œç??#region 测è??åœ?å??æ?œç?? IPScaner objScan = new IPScaner(); string ip = Request.UserHostAddress.ToString(); objScan.DataPath = @"D:\\webwz\\zyue.cn\\App_data\\QQWry.Dat"; objScan.IP = ip; string addre = objScan.IPLocation(); string err = objScan.ErrMsg; Response.Write(addre);//å›?å?? Response.Write(err);//åœ?区 ç??ï?š /****************************************************************** ** File Name:IPScaner.cs ** Copyright (c) 2004-2005 PPTech Studio(PPTech.Net) ** Creater:Rexsp(MSN:yubo@x263.net) ** Create Date:2004-12-27 20:10:28 ** Modifier: ** Modify Date: ** Description:to scan the ip location from qqwry.dat ** Version: IPScaner 1.0.0 ******************************************************************/ using System; using System.IO; using System.Collections; using System.Text; using System.Text.RegularExpressions; namespace PPTech.WebSite.BusinessRules { /**////

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

public class IPScaner { //ç??有æˆ?å??#region ç??有æˆ?å?? 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; //æ?„é? å‡?æ??#region æ?„é? å‡?æ?? public IPScaner() { // // TODO: åœ?æ?,å,„æ??åŠ æ?„é? å‡?æ??é??è?? // } //å…?å…?å??æ??#region å…?å…?å??æ?? 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;} } //æ?œç??åŒ?é…?æ??æ??#region æ?œç??åŒ?é…?æ??æ?? 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="IPæ ?å??é??è??"; 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="æœ?机内éƒ?ç??å›?åœ?å??"; 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="ç??ç?œä??ç??åœ?å??"; 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(rangBthis.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("ï?ˆæˆ?ä??ä??å?šè??è??æ??å??æ??ï??ï??ï??ï?‰",""); } else { nRet=3; this.country="未çŸ,"; this.local=""; } objfs.Close(); return nRet; } catch { return 1; } } // IPåœ?å??è??æ??æˆ?Intæ??æ??#region IPåœ?å??è??æ??æˆ?Intæ??æ?? 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; } //intè??æ??æˆ?IP#region intè??æ??æˆ?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; } //è??å•?èµ?å?‹IP范å›?#region è??å•?èµ?å?‹IP范å›? 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; } // è??å•?ç??æ?ŸIP#region è??å??ç??æ?ŸIP 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].ToStr ing())*256*256*256; this.countryFlag=buff[4]; return this.endIp; } //è??å•?å›?å??/区域å??ç??é‡?#region è??å??å›?å??/区域å??ç??é‡? private string GetCountry() { switch(this.countryFlag) { case 1: case 2: this.country=GetFlagStr(this.endIpOff+4); this.local=( 1 == this.countryFlag )?" ":this.GetFlagStr(this.endIpOff+8); break; default: this.country=this.GetFlagStr(this.endIpOff+4); this.local=this.GetFlagStr(objfs.Position); break; } return " "; } //è??å•?å›?å??/区域å??ç??ä??#region è??å•?å›?å??/区域å??ç??ä?? private string GetFlagStr(long offSet) { int flag=0; byte [] buff = new Byte[3]; while(1==1) { //objfs.Seek(offSet,SeekOrigin.Begin); objfs.Position=offSet; flag = objfs.ReadByte(); if(flag==1||flag==2) { objfs.Read(buff,0,3); if(flag==2) { this.countryFlag=2; this.endIpOff=offSet-4; } offSet=Convert.ToInt64(buff[0].ToString())+Convert.ToInt64(buff[1].ToString())*2 56+Convert.ToInt64(buff[2].ToString())*256*256; } else { break; } } if(offSet<12) return " "; objfs.Position=offSet; return GetStr(); } //GetStr#region GetStr private string GetStr() { byte lowC=0; byte upC=0; string str=""; byte[] buff = new byte[2]; while(1==1) { lowC= (Byte)objfs.ReadByte(); if(lowC==0) break; if(lowC>127) { upC=(byte)objfs.ReadByte(); buff[0]=lowC; buff[1]=upC; System.Text.Encoding enc = System.Text.Encoding.GetEncoding("GB2312"); str+=enc.GetString(buff); } else { str+=(char)lowC; } } return str; } //è??å•?IPåœ?å??#region è??å??IPåœ?å?? public string IPLocation() { this.QQwry(); return this.country+this.local; } public string IPLocation(string dataPath,string ip) { this.dataPath=dataPath; this.ip=ip; this.QQwry(); return this.country+this.local; } } }