Method: Request. SeverVariables ("HTTP_REFERER ")
Explanation: When someone reaches the current page through a link, HTTP_REFERER saves the user's source (lailu)
For example, this example is very simple. You can add more functions.
As shown below, you can see the file content only by logging in from http://www.kingbbs.net/index.asp first.
Source code: index. asp
-----------------------------------------------------------
<Html>
<Head> <title> asp anti-leech Protection </title> <Body>
<%
Option. Explicit
Response. Buffer = Ture
%>
<%
CheckUrl ("http://www.kingbbs.net/index.asp ")
%>
<%
Function CheckUrl (url)
Dim Where: Where = Request. SeverVariables ("HTTP_REFERER ")
If Where = url Then
Call main ()
Else
Response. write ("Sorry, you must access it from" & url! ")
End if
End Function
%>
<%
Sub main ()
Response. write ("here is the webpage content you want to display ")
End sub
%>
</Body>
</Html>
-----------------------------------------------------------
Wait is useless.
I wonder if you have any good ideas.
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