class SessionIdleTimeout:

    def __init__(self, get_response):
        self.get_response = get_response

    def __call__(self, request):
        print '**********************************'
        response = self.get_response(request)
        print '----------------------------------'
        if request.user.is_authenticated():
            current_datetime = datetime.datetime.now()
            last = (current_datetime - request.session['login_time']).seconds
            if 'login_time' in request.session:
                print (last, '==>', settings.SESSION_IDLE_TIMEOUT)
                if last > settings.SESSION_IDLE_TIMEOUT:
                    print ('%%%%%%%%%%%%%%%%%%%%%%%%%%%%%', last)
                    logout(request)
                if not request.is_ajax():
                    request.session['login_time'] = current_datetime
            else:
                request.session['login_time'] = current_datetime
        print('<=====================================>',request)
        print("++++++++++",response)
        return response





def auth_view(request):
    username = request.POST.get('username')
    password = request.POST.get('password')
    try:
        user = auth.authenticate(username=username, password=password)
        if user is not None:
            auth.login(request, user)
            request.session['name'] = username
            request.session['login_time'] = datetime.now()
            return HttpResponseRedirect('/role_login/')
        else:
            messages.error(request, "Password Invalid / Expired")

    except TypeError:
        pass
    return HttpResponseRedirect('/login/')


def logout(request):
    # try:
    #     del request.session
    # except KeyError:
    #     pass
    for sesskey in request.session.keys():
        del request.session[sesskey]
    print(request)
    return HttpResponseRedirect('/login/')