using System;
|
using System.IO;
|
using System.Text;
|
using System.Text.RegularExpressions;
|
|
namespace Common
|
{
|
public class IPScanerHelper
|
{
|
private string dataPath;
|
private string ip;
|
private string country;
|
private string local;
|
private long firstStartIp = 0L;
|
private long lastStartIp = 0L;
|
private FileStream objfs = null;
|
private long startIp = 0L;
|
private long endIp = 0L;
|
private int countryFlag = 0;
|
private long endIpOff = 0L;
|
private string errMsg = null;
|
|
public string DataPath
|
{
|
set
|
{
|
this.dataPath = value;
|
}
|
}
|
|
public string IP
|
{
|
set
|
{
|
this.ip = value;
|
}
|
}
|
|
public string Country
|
{
|
get
|
{
|
return this.country;
|
}
|
}
|
|
public string Local
|
{
|
get
|
{
|
return this.local;
|
}
|
}
|
|
public string ErrMsg
|
{
|
get
|
{
|
return this.errMsg;
|
}
|
}
|
|
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(this.ip);
|
int result;
|
if (!objMa.Success)
|
{
|
this.errMsg = "IP格式错误";
|
result = 4;
|
}
|
else
|
{
|
long ip_Int = this.IpToInt(this.ip);
|
int nRet = 0;
|
if (ip_Int >= this.IpToInt("127.0.0.0") && ip_Int <= this.IpToInt("127.255.255.255"))
|
{
|
this.country = "本机内部环回地址";
|
this.local = "";
|
nRet = 1;
|
}
|
else
|
{
|
if ((ip_Int >= this.IpToInt("0.0.0.0") && ip_Int <= this.IpToInt("2.255.255.255")) || (ip_Int >= this.IpToInt("64.0.0.0") && ip_Int <= this.IpToInt("126.255.255.255")) || (ip_Int >= this.IpToInt("58.0.0.0") && ip_Int <= this.IpToInt("60.255.255.255")))
|
{
|
this.country = "网络保留地址";
|
this.local = "";
|
nRet = 1;
|
}
|
}
|
this.objfs = new FileStream(this.dataPath, FileMode.Open, FileAccess.Read);
|
try
|
{
|
this.objfs.Position = 0L;
|
byte[] buff = new byte[8];
|
this.objfs.Read(buff, 0, 8);
|
this.firstStartIp = (long)((int)buff[0] + (int)buff[1] * 256 + (int)buff[2] * 256 * 256 + (int)buff[3] * 256 * 256 * 256);
|
this.lastStartIp = (long)((int)buff[4] + (int)buff[5] * 256 + (int)buff[6] * 256 * 256 + (int)buff[7] * 256 * 256 * 256);
|
long recordCount = Convert.ToInt64((double)(this.lastStartIp - this.firstStartIp) / 7.0);
|
if (recordCount <= 1L)
|
{
|
this.country = "FileDataError";
|
this.objfs.Close();
|
result = 2;
|
}
|
else
|
{
|
long rangE = recordCount;
|
long rangB = 0L;
|
while (rangB < rangE - 1L)
|
{
|
long recNO = (rangE + rangB) / 2L;
|
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 = "";
|
}
|
this.objfs.Close();
|
result = nRet;
|
}
|
}
|
catch
|
{
|
result = 1;
|
}
|
}
|
return result;
|
}
|
|
private long IpToInt(string ip)
|
{
|
char[] dot = new char[]
|
{
|
'.'
|
};
|
string[] ipArr = ip.Split(dot);
|
if (ipArr.Length == 3)
|
{
|
ip += ".0";
|
}
|
ipArr = ip.Split(dot);
|
long p = long.Parse(ipArr[0]) * 256L * 256L * 256L;
|
long p2 = long.Parse(ipArr[1]) * 256L * 256L;
|
long p3 = long.Parse(ipArr[2]) * 256L;
|
long p4 = long.Parse(ipArr[3]);
|
return p + p2 + p3 + p4;
|
}
|
|
private string IntToIP(long ip_Int)
|
{
|
long seg = (ip_Int & 0xff000000) >> 24;
|
if (seg < 0L)
|
{
|
seg += 0x100;
|
}
|
long seg2 = (ip_Int & 0x00ff0000) >> 16;
|
if (seg2 < 0L)
|
{
|
seg2 += 0x100;
|
}
|
long seg3 = (ip_Int & 0x0000ff00) >> 8;
|
if (seg3 < 0L)
|
{
|
seg3 += 0x100;
|
}
|
long seg4 = ip_Int & 0x000000ff;
|
if (seg4 < 0L)
|
{
|
seg4 += 0x100;
|
}
|
return string.Concat(new string[]
|
{
|
seg.ToString(),
|
".",
|
seg2.ToString(),
|
".",
|
seg3.ToString(),
|
".",
|
seg4.ToString()
|
});
|
}
|
|
private long GetStartIp(long recNO)
|
{
|
long offSet = this.firstStartIp + recNO * 7L;
|
this.objfs.Position = offSet;
|
byte[] buff = new byte[7];
|
this.objfs.Read(buff, 0, 7);
|
this.endIpOff = Convert.ToInt64(buff[4].ToString()) + Convert.ToInt64(buff[5].ToString()) * 256L + Convert.ToInt64(buff[6].ToString()) * 256L * 256L;
|
this.startIp = Convert.ToInt64(buff[0].ToString()) + Convert.ToInt64(buff[1].ToString()) * 256L + Convert.ToInt64(buff[2].ToString()) * 256L * 256L + Convert.ToInt64(buff[3].ToString()) * 256L * 256L * 256L;
|
return this.startIp;
|
}
|
|
private long GetEndIp()
|
{
|
this.objfs.Position = this.endIpOff;
|
byte[] buff = new byte[5];
|
this.objfs.Read(buff, 0, 5);
|
this.endIp = Convert.ToInt64(buff[0].ToString()) + Convert.ToInt64(buff[1].ToString()) * 256L + Convert.ToInt64(buff[2].ToString()) * 256L * 256L + Convert.ToInt64(buff[3].ToString()) * 256L * 256L * 256L;
|
this.countryFlag = (int)buff[4];
|
return this.endIp;
|
}
|
|
private string GetCountry()
|
{
|
switch (this.countryFlag)
|
{
|
case 1:
|
case 2:
|
this.country = this.GetFlagStr(this.endIpOff + 4L);
|
this.local = ((1 == this.countryFlag) ? " " : this.GetFlagStr(this.endIpOff + 8L));
|
break;
|
|
default:
|
this.country = this.GetFlagStr(this.endIpOff + 4L);
|
this.local = this.GetFlagStr(this.objfs.Position);
|
break;
|
}
|
return " ";
|
}
|
|
private string GetFlagStr(long offSet)
|
{
|
byte[] buff = new byte[3];
|
while (true)
|
{
|
this.objfs.Position = offSet;
|
int flag = this.objfs.ReadByte();
|
if (flag != 1 && flag != 2)
|
{
|
break;
|
}
|
this.objfs.Read(buff, 0, 3);
|
if (flag == 2)
|
{
|
this.countryFlag = 2;
|
this.endIpOff = offSet - 4L;
|
}
|
offSet = Convert.ToInt64(buff[0].ToString()) + Convert.ToInt64(buff[1].ToString()) * 256L + Convert.ToInt64(buff[2].ToString()) * 256L * 256L;
|
}
|
string result;
|
if (offSet < 12L)
|
{
|
result = " ";
|
}
|
else
|
{
|
this.objfs.Position = offSet;
|
result = this.GetStr();
|
}
|
return result;
|
}
|
|
private string GetStr()
|
{
|
string str = "";
|
byte[] buff = new byte[2];
|
while (true)
|
{
|
byte lowC = (byte)this.objfs.ReadByte();
|
if (lowC == 0)
|
{
|
break;
|
}
|
if (lowC > 127)
|
{
|
byte upC = (byte)this.objfs.ReadByte();
|
buff[0] = lowC;
|
buff[1] = upC;
|
Encoding enc = Encoding.GetEncoding("GB2312");
|
str += enc.GetString(buff);
|
}
|
else
|
{
|
str += (char)lowC;
|
}
|
}
|
return str;
|
}
|
|
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;
|
}
|
}
|
}
|
