利用JS获取IE客户端IP及MAC的实现

  在做B/S结构的系统时,我们常常需要获取客户端的一些信息,如IPMAC,以结合身份验证。在ASP.NET,要获取服务器端的MAC很容易,但是要获取客户端的MAC的地址确要花费一翻心思,通常的做法是调用Win32API或直接调用nbtstat命令,这样做有很多问题,而另一种方法就是直接用客户端脚本,我们这里用Javascript,这样做的好处是不需要服务器端进行处理,有客户端自行获取,传递到服务器端,且速度和可靠性都比在服务器端获取好。

  具体实现的html和javascript如下:

< HTML >< HEAD >< TITLE > WMIScriptingHTML </ TITLE >
< META http-equiv =Content-Type content ="text/html;charset=gb2312" >
< SCRIPT language =JScript event ="OnCompleted(hResult,pErrorObject,pAsyncContext)" for =foo >
document.forms[
0 ].txtMACAddr.value = unescape(MACAddr);
document.forms[
0 ].txtIPAddr.value = unescape(IPAddr);
document.forms[
0 ].txtDNSName.value = unescape(sDNSName);
// document.formbar.submit();
</ SCRIPT >

< SCRIPT language =JScript event =OnObjectReady(objObject,objAsyncContext) for =foo >
if (objObject.IPEnabled != null && objObject.IPEnabled != " undefined " && objObject.IPEnabled == true )
{
if (objObject.MACAddress != null && objObject.MACAddress != " undefined " )
MACAddr
= objObject.MACAddress;
if (objObject.IPEnabled && objObject.IPAddress( 0 ) != null && objObject.IPAddress( 0 ) != " undefined " )
IPAddr
= objObject.IPAddress( 0 );
if (objObject.DNSHostName != null && objObject.DNSHostName != " undefined " )
sDNSName
= objObject.DNSHostName;
}
</ SCRIPT >

< META content ="MSHTML6.00.2800.1106" name =GENERATOR ></ HEAD >
< BODY >
< OBJECT id =locator classid =CLSID:76A64158-CB41-11D1-8B02-00600806D9B6 VIEWASTEXT ></ OBJECT >
< OBJECT id =foo classid =CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223 ></ OBJECT >
< SCRIPT language =JScript >
var service = locator.ConnectServer();
var MACAddr;
var IPAddr;
var DomainAddr;
var sDNSName;
service.Security_.ImpersonationLevel
= 3 ;
service.InstancesOfAsync(foo,'Win32_NetworkAdapterConfiguration');
</ SCRIPT >

< FORM id =formfoo name =formbar action =NICPost.asp method =post >< INPUT value =00:05:5D:0E:C7:FA name =txtMACAddr > < INPUT value =192.168.0.2 name =txtIPAddr > < INPUT value =typ name =txtDNSName > </ FORM ></ BODY ></ HTML >

  关键是用到两个ActiveX:

  <OBJECT id=locator classid=CLSID:76A64158-CB41-11D1-8B02-00600806D9B6 VIEWASTEXT></OBJECT>
  <OBJECT id=foo classid=CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223></OBJECT>

  不过这两个ActiveX都是系统自带,不用去下载或注册。

  接下来的工作就是用脚本和ActiveX交互,脚本可以是js或Vbs我个人喜欢用js。

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