Capturing simultaneous user login.

[ashutosh.bhardwaj1980]

Hi,
I amdeveloping a web site in ASP and it is a secure site. I would like
someone to help me on this:

-->i dont want 2 users to accesss my site with the same username
parallely.

--> Also how can I capture window.close event in my application and
then call a asp script in that function.

--> Is there a way to capture refresh button of IE or netscape.


Waiting for reply,
Thanking you in advance,
Regards,
Ashutosh Bhardwaj

 

[Evertjan.]

John Blessing wrote on 03 jun 2005 in
microsoft.public.inetserver.asp.general:

Not with server-side script.

Start all(!) pages with:

<%
thispage = request.servervariables("PATH_INFO")
if session("thispage")=thispage then response.redirect "/notTwice.asp"
session("thispage")=thispage
%>

Not tested, will this work?

 

[Kyle Peterson]

some of the systems out there can do it and pretty well
check aspin

http://www.aspin.com/home/webapps/usermanage

its not an easy thing to accomplish

 

[Evertjan.]

Kyle Peterson wrote on 03 jun 2005 in
microsoft.public.inetserver.asp.general:
[Please do not toppost on usenet, Kyle]

some of the systems out there can do it and pretty well
check aspin

What do you mean by "some of the systems"?
We are talking ASP on this NG.

http://www.aspin.com/home/webapps/usermanage

its not an easy thing to accomplish

So you imply that my easy solution does not work?

 

[larrybud2002]

Hi,
I amdeveloping a web site in ASP and it is a secure site. I would like
someone to help me on this:

-->i dont want 2 users to accesss my site with the same username
parallely.

Here's what I do:

Create a table with a user_id, session_id as the columns. When a user
logs in, store the user_id and session ID in the table, overwriting any
row that already has the same user_id in there.

Then on each subsequent page (I have the code in the shared toolbar.asp
page), check to see if the current session_id = the session_id in the
table. If it does not, someone else has logged in with the user ID and
the current session is now invalid. forward them to some error or
warning page.

The effect of this is that whatever session has logged in last, wins.
the other session is kicked out. This way, you don't need to know if
someone logged out or not.

--> Is there a way to capture refresh button of IE or netscape.

What do you mean by "capture"?