Re: [Cppcms-users] Detect expired session

[<ele...@ex...>]

or make a periodic ajax to check the state of the session. if it's expired
then you can print it on screen.

> 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...
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