On Wed, Dec 19, 2007 at 04:58:49PM +0000, Dorothea Salo wrote:
> On Dec 19, 2007 10:30 AM,  <[EMAIL PROTECTED]> wrote:
> > We are running DSpace 1.4 and I have just noticed a serious issue with the
> > authentication.  We are using the default implementation with the email
> > address/password based login.  I have noticed that when I logout and then
> > click to go onto any other page on our DSpace site it comes up in the top
> > left corner that I am still logged in.
> 
> I suspect that this is the browser cache at work; I often have it
> return authentication-required visited pages after I log out or my
> session expires. I'm not sure what DSpace could do about that except
> for no-cache tricks that break the Back button entirely (which would
> be a bad, bad idea).

Yes this is correct; it's a browser issue. After you log out, you are
actually logged out, but (eg) firefox will try to be clever about not
re-requesting pages that it has cached. Of course, if you try to do
anything that requires you being logged in, you will be prompted to do
so; your browser can't subvert that process. Most apps try to get around
this by asking you to shut down your browser (which would clear the
cache), but DSpace doesn't bother. You could modify the logged-out.jsp
to include this message if you feel it's important for your repository.

The only potential issue is that someone could potentially *see* what
you were looking at before you logged out; they wouldn't be able to *do*
anything though.

cheers,

Jim

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