kfet.open

kfet.open app
- Base data (raw_open, last_update...) is stored and shared through cache system.
- 2 websockets groups: one for team users, one for other users.
- UI is initialized and kept up-to-date with WS.
- raw_open and force_close can be updated with standard HTTP requests.
  At this time, there isn't any restriction on raw_open view. Common sense tell us
  to change this behavior.

Misc
- Clean channels routing.
- 'PermConsumerMixin': user who sent the message is available as argument in
connection_groups method, which returns groups to which the user should be
appended on websocket connection (and discarded on disconnection).
- New kfet.utils module: should be used for mixins, whatever is useful and not concerns
the kfet app.
- Clean JS dependencies.

kfet/open/consumers.py

@@ -0,0 +1,25 @@
+from ..decorators import kfet_is_team
+from ..utils import DjangoJsonWebsocketConsumer, PermConsumerMixin
+
+from .open import kfet_open
+
+
+class OpenKfetConsumer(PermConsumerMixin, DjangoJsonWebsocketConsumer):
+    """Consumer for K-Fêt Open.
+
+    WS groups:
+        kfet.open.base: Only carries the values visible for all users.
+        kfet.open.team: Carries all values (raw status...).
+
+    """
+
+    def connection_groups(self, user, **kwargs):
+        """Select which group the user should be connected."""
+        if kfet_is_team(user):
+            return ['kfet.open.team']
+        return ['kfet.open.base']
+
+    def connect(self, message, *args, **kwargs):
+        """Send current status on connect."""
+        super().connect(message, *args, **kwargs)
+        self.send(kfet_open.export(message.user))