✨(backend) notify collaboration server

When an access is updated or removed, the
collaboration server is notified to reset the
access connection; by being disconnected, the
accesses will automatically reconnect by passing
by the ngnix subrequest, and so get the good
rights.
We do the same system when the document link is
updated, except here we reset every access
connection.

src/backend/core/api/viewsets.py

@@ -30,6 +30,7 @@ from rest_framework.permissions import AllowAny
 
 from core import enums, models
 from core.services.ai_services import AIService
+from core.services.collaboration_services import CollaborationService
 
 from . import permissions, serializers, utils
 from .filters import DocumentFilter
@@ -520,6 +521,10 @@ class DocumentViewSet(
         serializer.is_valid(raise_exception=True)
 
         serializer.save()
+
+        # Notify collaboration server about the link updated
+        CollaborationService().reset_connections(str(document.id))
+
         return drf.response.Response(serializer.data, status=drf.status.HTTP_200_OK)
 
     @drf.decorators.action(detail=True, methods=["post", "delete"], url_path="favorite")
@@ -815,6 +820,28 @@ class DocumentAccessViewSet(
             self.request.user,
         )
 
+    def perform_update(self, serializer):
+        """Update an access to the document and notify the collaboration server."""
+        access = serializer.save()
+
+        access_user_id = None
+        if access.user:
+            access_user_id = str(access.user.id)
+
+        # Notify collaboration server about the access change
+        CollaborationService().reset_connections(
+            str(access.document.id), access_user_id
+        )
+
+    def perform_destroy(self, instance):
+        """Delete an access to the document and notify the collaboration server."""
+        instance.delete()
+
+        # Notify collaboration server about the access removed
+        CollaborationService().reset_connections(
+            str(instance.document.id), str(instance.user.id)
+        )
+
 
 class TemplateViewSet(
     drf.mixins.CreateModelMixin,