<%

'/////////////////////////////////////////////////////

'// //

'//作用：一个IP地址只允许访问本页一次 //

'//引用：<!-- #include file="Check_Ip.asp" --> //

'// //

'/////////////////////////////////////////////////////

'Response.Charset = 936 '设置输出编码为简体中文

'Response.Buffer = false '关闭缓冲区

Dim Fso,ts,IpList,Cfs

'设置Cookies函数

Function SetCookie()

Response.Cookies("IsBrow") = "Brow"

Response.Cookies("IsBrow").Expires = Date+365

End Function

'记录IP地址函数

Function WriteIp(FileName, IpAddress)

Set Fso = Server.CreateObject("Scripting.FileSystemObject")

Set ts = Fso.OpenTextFile(Server.MapPath(FileName),8,true)

ts.WriteLine IpAddress

ts.Close

Set ts = Nothing

Set Fso = Nothing

End Function

'读取IP地址函数

Function ReadIpList(FileName)

Set Fso = Server.CreateObject("Scripting.FileSystemObject")

If Not Fso.FileExists(Server.MapPath(FileName)) Then

CreateFile("Iplist.txt")

Exit Function

End If

Set ts = Fso.OpenTextFile(Server.MapPath(FileName))

Iplist = ts.ReadAll

ts.Close

Set ts = Nothing

Set Fso = Nothing

ReadIpList = Iplist

End Function

'创建文件函数

Function CreateFile(FileName)

Set Fso = Server.CreateObject("Scripting.FileSystemObject")

Set Cfs = Fso.CreateTextFile(Server.MapPath(FileName))

Cfs.Close

Set Cfs = Nothing

Set Fso = Nothing

End Function

'关闭当前IE窗口函数(注:IE6下通过,其他浏览器未测试)

Function CloseWindow()

'Response.Write "<script>window.location='javascript:window.opener=null;window.close();'</script>"

Response.Redirect "http://www.baidu.com"

End Function

Ip = Request.ServerVariables("REMOTE_ADDR") '获取浏览者IP地址

Cookie = Request.Cookies("IsBrow") '获取当前Cookies

'Response.Write Cookie

If Request.ServerVariables("HTTP_X_FORWARDED_FOR") <> "" Then

Response.Write "本站不允许使用代理访问"

Response.End()

Else

If Cookie = "Brow" Then

CloseWindow()

Else

If Instr(ReadIpList("Iplist.txt"),Ip) <> 0 Then

CloseWindow()

Else

WriteIp "Iplist.txt" , Ip

End If

SetCookie()

End If

End If

%>