public static string GetSubStr(string str)
{
if (!string.IsNullOrEmpty(str))
{
if (DataValidator.IsMobile(str))
{
return(str.Substring(0, 2) + "***" + str.Substring(str.Length - 3));
}
if (DataValidator.IsEmail(str))
{
return(str.Substring(0, 2) + "***" + str.Substring(str.Length - 3));
}
if (str.Length > 3)
{
return(str.Substring(0, 2) + "**" + str.Substring(str.Length - 2));
}
return(str);
}
return("");
}
//// <summary>
/// 取得客户端真实IP。如果有代理则取第一个非内网地址
/// by flower.b
/// </summary>
public static string GetRequestIP()
{
string result = String.Empty;
result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (result != null && result != String.Empty)
{
//可能有代理
if (result.IndexOf(".") == -1) //没有“.”肯定是非IPv4格式
{
result = null;
}
else
{
if (result.IndexOf(",") != -1)
{
//有“,”，估计多个代理。取第一个不是内网的IP。
result = result.Replace(" ", "").Replace("'", "");
string[] temparyip = result.Split(",;".ToCharArray());
for (int i = 0; i < temparyip.Length; i++)
{
if (DataValidator.IsIP(temparyip[i]) &&
temparyip[i].Substring(0, 3) != "10." &&
temparyip[i].Substring(0, 7) != "192.168" &&
temparyip[i].Substring(0, 7) != "172.16.")
{
return(temparyip[i]); //找到不是内网的地址
}
}
}
else if (DataValidator.IsIP(result)) //代理即是IP格式
{
return(result);
}
else
{
result = null; //代理中的内容 非IP，取IP
}
}
}
if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}
if (result == null || result == String.Empty)
{
result = HttpContext.Current.Request.UserHostAddress;
}
if (result == "127.0.0.1" || result == "::1") //获取本机内网IP
{
System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList; //获取本机内网IP
string strgetIP = addressList.Length > 0 ? addressList[0].ToString() : String.Empty;
if (DataValidator.IsIP(strgetIP)) //代理即是IP格式
{
result = strgetIP;
}
}
return(result);
}
