/// <summary>
/// 初始化方法，必须先调用这个方法进行初始化
/// </summary>
/// <param name="dataPath">纯真IP数据库文件地址</param>
public static void Initialize(string dataPath)
{
if (dataPath == _instanceFilePath)
{
return;
}
//throw new Exception("请不要反复初始化同一文件路径");
_instanceFilePath = dataPath;
var loc = new IPLocator();
using (FileStream fs = File.OpenRead(dataPath))
{
loc.data = new byte[fs.Length];
fs.Read(loc.data, 0, loc.data.Length);
}
byte[] buffer = new byte[8];
Array.Copy(loc.data, 0, buffer, 0, 8);
loc._firstStartIpOffset = ((buffer[0] + (buffer[1] * 0x100)) + ((buffer[2] * 0x100) * 0x100)) + (((buffer[3] * 0x100) * 0x100) * 0x100);
loc._lastStartIpOffset = ((buffer[4] + (buffer[5] * 0x100)) + ((buffer[6] * 0x100) * 0x100)) + (((buffer[7] * 0x100) * 0x100) * 0x100);
loc.Count = Convert.ToInt64((((loc._lastStartIpOffset - loc._firstStartIpOffset)) / 7d));
if (loc.Count <= 1L)
{
throw new ArgumentException("IP File DataError.");
}
_instance = loc;
}
private void btnImport_Click(object sender, EventArgs e)
{
string ipfile = txtIPFile.Text.Trim();
if (!File.Exists(ipfile))
{
MessageBox.Show("未指定IP纯真库文件，或指定的文件不存在");
return;
}
try
{
IPLocator.Query("127.0.0.1", ipfile);
}
catch (Exception)
{
MessageBox.Show("指定的IP纯真库文件格式有误");
return;
}
string constr = txtConstr.Text.Trim();
if (string.IsNullOrEmpty(constr))
{
MessageBox.Show("请输入数据库连接串");
return;
}
btnImport.Enabled = false;
ThreadPool.UnsafeQueueUserWorkItem(state =>
{
try
{
DateTime now = DateTime.Now;
string tbname = "ip_" + now.ToString("yyyyMMddHHmmss");
IPLocator.ExportToSqlServer(constr, tbname);
Utility.InvokeControl(btnImport, () =>
{
btnImport.Enabled = true;
string msg = "导入成功，新建的表名:" + tbname + "耗时(ms):" +
(DateTime.Now - now).TotalMilliseconds.ToString("N0");
MessageBox.Show(msg);
txtRet.Text = msg + "\r\n\r\n" + txtRet.Text;
});
}
catch (Exception exp)
{
MessageBox.Show("导入出错:" + exp);
}
}, null);
}
private void btnSearch_Click(object sender, EventArgs e)
{
string ipfile = txtIPFile.Text.Trim();
if (!File.Exists(ipfile))
{
MessageBox.Show("未指定IP纯真库文件，或指定的文件不存在");
return;
}
string ip = txtIP.Text.Trim(new char[] { ';', ',', ':', '.' });
ip = ip.Trim();
if (string.IsNullOrEmpty(ip))
{
MessageBox.Show("请输入IP");
return;
}
long lIP;
if (long.TryParse(ip, out lIP))
{
ip = IPLocator.ConvertLongToIP(lIP);
}
if (!Regex.IsMatch(ip, @"^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$"))
{
MessageBox.Show("请输入正确格式的IP");
return;
}
try
{
IPLocation location = IPLocator.Query(ip, ipfile);
txtRet.Text = " IP: " + location.IP + "\r\n" +
"整型IP: " + IPLocator.ConvertIpToLong(location.IP) + "\r\n" +
" 地址: " + location.Country + "\r\n" +
" 其它: " + location.Area + "\r\n\r\n" + txtRet.Text;
}
catch (Exception exp)
{
txtRet.Text = "出错了:\r\n" + exp + "\r\n\r\n" + txtRet.Text;
}
}
/// <summary>
/// 查询并返回指定IPv4的实体，null表示不是正确IP，或属于环回地址，或属于局域网地址
/// </summary>
/// <param name="ip"></param>
/// <returns></returns>
public static IPLocation Query(string ip)
{
IPLocator objLocator = Instance;
IPLocation ipLocation = new IPLocation()
{
IP = ip
};
IPAddress ipa;
if (!IPAddress.TryParse(ip, out ipa))
{
ipLocation.Country = "非法IP地址";
return(ipLocation);
}
if (IPAddress.IsLoopback(ipa))
{
ipLocation.Country = "本地环回地址";
return(ipLocation);
}
if (IsLocalNetwork(ipa))
{
ipLocation.Country = "局域网地址";
return(ipLocation);
}
long intIP = ConvertIpToLong(ip);
long right = objLocator.Count;
long left = 0L;
long middle;
long startIp;
long endIpOff;
long endIp;
int countryFlag;
while (left < (right - 1L))
{
middle = (right + left) / 2L;
startIp = objLocator.GetStartIp(middle, out endIpOff);
if (intIP == startIp)
{
left = middle;
break;
}
if (intIP > startIp)
{
left = middle;
}
else
{
right = middle;
}
}
startIp = objLocator.GetStartIp(left, out endIpOff);
endIp = objLocator.GetEndIp(endIpOff, out countryFlag);
if ((startIp <= intIP) && (endIp >= intIP))
{
string local;
ipLocation.Country = objLocator.GetCountry(endIpOff, countryFlag, out local);
ipLocation.Area = local;
}
else
{
ipLocation.Country = "未知国家";
ipLocation.Area = "未知地区";
}
return(ipLocation);
}