def dispatch(self, request, *args, **kwargs):
""" Return the view with a 503 status code """
if not get_current_site_messages(request).count():
# Status code 200: OK
return HttpResponse("OK")
else:
# Status code 503: Service Unavailable
return HttpResponse("Service Unavailable", status=503)
def process_request(self, request):
if request.META.get('REMOTE_ADDR') in settings.INTERNAL_IPS:
# Allow access if remote ip is in INTERNAL_IPS
return None
elif is_privileged_request(request):
# Allow privileged users (superusers and possibly staff) through
return None
else:
try:
view, args, kwargs = urlresolvers.resolve(request.path)
except:
return None
if 'django.contrib.admin' in view.__module__ or 'django.views.static' in view.__module__ or 'maintenance.heartbeat' in view.__module__:
return None
messages = get_current_site_messages(request)
if messages.count() > 0:
return TemplateResponse(request, '503.html', context={'maintenance_messages': messages}, status=503)
else:
return None