Re: [Cppcms-users] Detect expired session

[Lee E. <lee...@gm...>]

you redirected him to the login page when you saw that his session is empty
- before the redirect - see if he was trying to submit a form - and then
add that message to his login screen

On Sat, Jul 7, 2012 at 12:16 PM, Christian Gmeiner <
chr...@gm...> wrote:

>
> > >
> > >is there a way to detect if a valid session gets expired?
> >
> > If the session is expired you will get an empty session - i.e.
> > the session would not be loaded.
> >
> okay... but what is the difference between a user that was never logged in
> and a user which session expired?
> >
> >
> > > I would like to inform logged in users that their session has
> > > expired
> >
> > What do you mean?
> >
> > If the user had lost the session due to timeout it would have to login
> > again.
> >
> >
> > There are also several models of session expiration:
> >
> > http://cppcms.com/wikipp/en/page/cppcms_1x_config#session
> >
> >
>
> Sessions are working fine that's not my problem!
>
> >
> > > and that there may be some data lose
> > > (changed values withoutsaving them).
> >
> > See, NEVER store valuable information information
> >
> > in the session. This is not what the session is for.
> >
> > Session may expire, be deleted, the user may loose the
> > cookie. So sessions is not good for this purpose.
> >
>
> I may be more clear here. the app i am developing is used to configure an
> embedded linux device (network settings etc). now i have a feature request
> to get informed if a user has changed some values in a html form (can be
> detected via ajax etc) went to drink a coffee for 13 minutes, but the
> session is only valid for 10 minutes. now the user comes back an filled out
> the form and presses apply. now he sees the login form again and wonders
> what happened to his changes. now it would be good to see a message in the
> login form that not all changes could be applied,due session timeout.
>
> thanks
>
>
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lee
Lee Elenbaas
lee...@gm...