/// <summary>
/// 获取用户IPv4地址
/// </summary>
/// <param name="request">Http请求</param>
/// <returns>IPv4地址</returns>
public static String GetRemoteClientIPv4(this HttpRequestBase request)
{
if (request == null)
{
return(String.Empty);
}
String ip = request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (RegexVerify.IsIPv4(ip))
{
if (ip.IndexOf(':') >= 0)//有端口的情况
{
ip = ip.Substring(0, ip.IndexOf(':'));
}
return(ip);//如果只有一个IP则返回
}
if (String.IsNullOrEmpty(ip))
{
ip = request.ServerVariables["REMOTE_ADDR"];
}
if (String.IsNullOrEmpty(ip))
{
ip = request.UserHostAddress;
}
if (!String.IsNullOrEmpty(ip) && ip.IndexOf(',') >= 0)//有代理的情况
{
String[] ips = ip.Replace(" ", "").Replace("'", "").Split(new Char[] { ',', ';' });
for (Int32 i = 0; i < ips.Length; i++)
{
if ((RegexVerify.IsIPv4(ips[i])) && (ips[i].Substring(0, 3) != "10.") && (ips[i].Substring(0, 7) != "192.168") && (ips[i].Substring(0, 7) != "172.16."))
{
ip = ips[i];//获取不是内网的地址
break;
}
}
}
if (String.Equals(ip, "::1"))
{
ip = "127.0.0.1";
}
if (!String.IsNullOrEmpty(ip) && ip.IndexOf(':') >= 0)//有端口的情况
{
ip = ip.Substring(0, ip.IndexOf(':'));
}
return(ip);
}