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Creating A Log File :

Are you interested to know who came to your site? at what time? and what was the referring URL. Here is an example how to make a Log file for an ASP page to keep track of users on your site. With this Log file you will be able to check who visited your site, At what time, What was the reffering URL and what browser that user was using.

This Example use a text file to write user information. If you want to learn more about how to write to a text file within an ASP page Click here.
Create a file LogFile.asp with the following code and add in the header of every page useing Server Side #Include.

<!--#Include File="LogFile.asp"-->

When some one will come to your site on any page which has LogFile.asp included that user's information will be written to LogFile.txt. If the refering url is from same site, LogFile.asp will not write that information.

File: LogFile.asp <%
Dim blnValidEntry ' Log variable

' First set that this log is valid
blnValidEntry = True

' If Session Variable "LogIn" is not empty
' that mean this person has already been logged
' then set blnValidEntry to False

If not IsEmpty(Session("LogIn")) then blnValidEntry = False

' Here you can add different restriction
' If the refering url is from same site
' then there is no need to write to log file

If Left(Request.ServerVariables("HTTP_REFERER"), 17)="http://devasp.com" Then
blnValidEntry = False
End If

If Left(Request.ServerVariables("HTTP_REFERER"), 21)="http://www.devasp.com" Then
blnValidEntry = False
End If

' Now if blnValidEntry is True then enter to log file

If blnValidEntry Then
Const ForAppending = 8
Const Create = true
Dim FSO
Dim TS
Dim MyFileName
Dim strLog

MyFileName = Server.MapPath("MyLogFile.txt")

Set FSO = Server.CreateObject("Scripting.FileSystemObject")
Set TS = FSO.OpenTextFile(MyFileName, ForAppending, Create)

' Store all the required information in a string Called strLog

strLog = "<br><P><B>" & NOW() & "</B> "
strLog = strLog & Request.ServerVariables("REMOTE_ADDR") & " "
strLog = strLog & Request.ServerVariables("HTTP_REFERER") & " "
strLog = strLog & Request.ServerVariables("HTTP_USER_AGENT") & "<BR>"

' Write current information to Log Text File.

TS.write strLog
TS.Writeline ""

' Now Create a session varialbe to check next time for ValidEntry

Session("LogIn") = "yes"
Set TS = Nothing
Set FSO = Nothing
End If
%>

Lime    BE COMFORT


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