利用JS获取IE客户端IP及MAC的实现

[ 2006-04-18 19:13:08 | Author: zhenhua ]
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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IP和MAC,以结合身份验证。在ASP.NET中,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>WMI Scripting HTML</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="MSHTML 6.00.2800.1106" 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。

作者Blog:http://blog.csdn.net/jeven2005/
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