Google

2009年4月11日 星期六

ASP.net 2.0 取得 user IP & MAC

一直以為無法取得 user MAC  好像是可以試試看的方法

========  以下是網路上找到的方法 ( from http://www.cnblogs.com/scgw/ ) ===================

========= 取材自 :http://www.cnblogs.com/scgw/archive/2008/06/04/1213926.html ===========

获取客户端IP:

private string GetClientIP()
  {
   string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
   if (null == result || result == String.Empty)
   {
    result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
   }

   if (null == result || result == String.Empty)
   {
    result = HttpContext.Current.Request.UserHostAddress;
   }
   return result;
  }

获取MAC地址:

using System.Runtime.InteropServices;

[DllImport("Iphlpapi.dll")] 
  private static extern int SendARP(Int32 dest,Int32 host,ref Int64 mac,ref Int32 length); 
  [DllImport("Ws2_32.dll")]
  private static extern Int32 inet_addr(string ip);

  private void Page_Load(object sender, System.EventArgs e)
  {
   // 在此处放置用户代码以初始化页面
   try
   {
    string userip=Request.UserHostAddress;
    string strClientIP = Request.UserHostAddress.ToString().Trim();
    Int32 ldest = inet_addr(strClientIP); //目的地的ip 
    Int32 lhost = inet_addr("");   //本地服务器的ip 
    Int64 macinfo = new Int64(); 
    Int32 len = 6; 
    int res = SendARP(ldest,0, ref macinfo, ref len);
    string mac_src=macinfo.ToString("X");
    if(mac_src == "0")
    {
     if(userip=="127.0.0.1")
      Response.Write ("正在访问Localhost!");
     else
      Response.Write ("欢迎来自IP为" + userip + "的朋友!" + "
");
     return;
    }

    while(mac_src.Length<12) mac_src =" mac_src.Insert(0,">

    string mac_dest="";

    for(int i=0;i<11;i++) 0 ="=" i ="=" mac_dest =" mac_dest.Insert(0,mac_src.Substring(i,2));" mac_dest ="-">

    Response.Write ("欢迎来自IP为"+userip+ "
" + ",MAC地址为"+mac_dest+"的朋友!"

     +   "
");
   }
   catch(Exception err) 
   { 
    Response.Write(err.Message);
   }
  }

沒有留言: