Rename key and values for m.room.history_visibility. Support 'invited' value

synapse/events/utils.py

@@ -75,7 +75,7 @@ def prune_event(event):
     elif event_type == EventTypes.Aliases:
         add_fields("aliases")
     elif event_type == EventTypes.RoomHistoryVisibility:
-        add_fields("visibility")
+        add_fields("history_visibility")
 
     allowed_fields = {
         k: v

synapse/handlers/federation.py

@@ -239,22 +239,28 @@ class FederationHandler(BaseHandler):
                 return event
 
             history = state.get((EventTypes.RoomHistoryVisibility, ''), None)
-            if history and history.content.get("visibility", None) == "after_join":
-                for ev in state.values():
-                    if ev.type != EventTypes.Member:
-                        continue
-                    try:
-                        domain = UserID.from_string(ev.state_key).domain
-                    except:
-                        continue
+            if history:
+                visibility = history.content.get("history_visibility", "shared")
+                if visibility in ["invited", "joined"]:
+                    for ev in state.values():
+                        if ev.type != EventTypes.Member:
+                            continue
+                        try:
+                            domain = UserID.from_string(ev.state_key).domain
+                        except:
+                            continue
 
-                    if domain != server_name:
-                        continue
+                        if domain != server_name:
+                            continue
 
-                    if ev.membership == Membership.JOIN:
-                        return event
-                else:
-                    return prune_event(event)
+                        memtype = ev.membership
+                        if memtype == Membership.JOIN:
+                            return event
+                        elif memtype == Membership.INVITE:
+                            if visibility == "invited":
+                                return event
+                    else:
+                        return prune_event(event)
 
             return event
 

synapse/handlers/message.py

@@ -149,13 +149,29 @@ class MessageHandler(BaseHandler):
             if event.type == EventTypes.RoomHistoryVisibility:
                 return True
 
-            membership = state.get((EventTypes.Member, user_id), None)
-            if membership and membership.membership == Membership.JOIN:
+            membership_ev = state.get((EventTypes.Member, user_id), None)
+            if membership_ev:
+                membership = membership_ev.membership
+            else:
+                membership = Membership.LEAVE
+
+            if membership == Membership.JOIN:
                 return True
 
             history = state.get((EventTypes.RoomHistoryVisibility, ''), None)
-            if history and history.content.get("visibility", None) == "after_join":
-                return False
+            if history:
+                visibility = history.content.get("history_visibility", "shared")
+            else:
+                visibility = "shared"
+
+            if visibility == "public":
+                return True
+            elif visibility == "shared":
+                return True
+            elif visibility == "joined":
+                return membership == Membership.JOIN
+            elif visibility == "invited":
+                return membership == Membership.INVITE
 
             return True
 

synapse/handlers/sync.py

@@ -306,16 +306,31 @@ class SyncHandler(BaseHandler):
             if event.type == EventTypes.RoomHistoryVisibility:
                 return True
 
-            membership = state.get((EventTypes.Member, user_id), None)
-            if membership and membership.membership == Membership.JOIN:
+            membership_ev = state.get((EventTypes.Member, user_id), None)
+            if membership_ev:
+                membership = membership_ev.membership
+            else:
+                membership = Membership.LEAVE
+
+            if membership == Membership.JOIN:
                 return True
 
             history = state.get((EventTypes.RoomHistoryVisibility, ''), None)
-            if history and history.content.get("visibility", None) == "after_join":
-                return False
+            if history:
+                visibility = history.content.get("history_visibility", "shared")
+            else:
+                visibility = "shared"
+
+            if visibility == "public":
+                return True
+            elif visibility == "shared":
+                return True
+            elif visibility == "joined":
+                return membership == Membership.JOIN
+            elif visibility == "invited":
+                return membership == Membership.INVITE
 
             return True
-
         events_and_states = filter(allowed, events_and_states)
         defer.returnValue([
             ev