Django Expired Session Message API

问题

I'm currently using SESSION_COOKIE_AGE = 60*60 to expire a Django session in 1 hour. I need to give a message to the user saying their session has expired on the login page.

Is there a way to test if the session has been expired? Or is there a message api for expired sessions in Django?

I poked around and didn't see anything for setting an expired session message.

Thanks!

回答1:

The warning typically provided to a user is an invitation to login :-).

What you could do is check SESSION_COOKIE_AGE (which provides the age of the cookie in seconds) and, if the user's session is about to expire, provide a warning to that effect.

回答2:

To display the message that session is expired you can check if session exists in your logout view and change the success message accordingly

class Logout(View):
def get(self, request):
    if request.session:
        messages.success(request, 'Successfully Logged Out')
    else:
        messages.error(request, 'Session Expired Please Login Again')
    logout(request)
    return redirect(reverse('login'))

回答3:

I encouraged same problem and solved shown as below:

Django redirecting to LOGIN_URL after session expired. So I pointed login url to logout view in settings.py for show message to user and redirect to our login view.

settings.py:

LOGIN_URL = reverse_lazy('account:logout')

views.py:

class LogoutView(RedirectView):
    url = reverse_lazy('account:login') # Our login view

    def get(self, request, **kwargs):

        # If session expired django clean request.session object.
        # If user came to this view by clicking to logout button request.session not comes empty 
        if request.session.is_empty():
            messages.error(request, "Your session has expired. Please login again to continue checking out.")

        logout(request)

        if request.GET.get('next'):
            self.url = '{}?next={}'.format(self.url, request.GET.get('next'))

        return super(LogoutView, self).get(request, **kwargs)

来源：https://stackoverflow.com/questions/5200787/django-expired-session-message-api

标签

django

session