ASP屏蔽访问的IP地址

将下面的代码保存为 .asp的文件,如1.asp

代码如下:

<%
'受屏蔽IP地址(段)集合,星号为通配符,通常保存于配置文件中。
Const BadIPGroup = "192.168.1.*|119.96.207.*"

If IsForbidIP(BadIPGroup) = True Then
Response.Write("您的IP地址是:"& GetIP &"&nbsp;此IP地址禁止访问!")
Response.End()
End If

'参数vBadIP:要屏蔽的IP段,IP地址集合,用|符号分隔多个IP地址(段)
'返回Bool:True用户IP在被屏蔽范围,False 反之

Function IsForbidIP(vBadIP)
Dim counter, arrIPPart, arrBadIP, arrBadIPPart, i, j

arrBadIP = Split(vBadIP, "|")
arrIPPart = Split(GetIP(), ".")
   
For i = 0 To UBound(arrBadIP) 
counter = 0
arrBadIPPart = Split(arrBadIP(i), ".")
For j = 0 To UBound(arrIPPart)
If(arrBadIPPart(j)) = "*" or Cstr(arrIPPart(j)) = Cstr(arrBadIPPart(j)) Then
counter = counter + 1
End If
 Next
 If counter = 4 Then
IsForbidIP = True
Exit Function
 End If
Next
IsForbidIP = False
End Function

'返回客户IP地址

Function GetIP()
Dim IP
IP = Request.ServerVariables("HTTP_X_FORWARDED_FOR") 
If IP = "" Then IP = Request.ServerVariables("REMOTE_ADDR")
GetIP = IP
End Function
%>

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