Merge branch 'master' into kegan/history-vis

roomserver/internal/perform/perform_backfill.go

@@ -547,7 +547,7 @@ func persistEvents(ctx context.Context, db storage.Database, events []gomatrixse
 		var stateAtEvent types.StateAtEvent
 		var redactedEventID string
 		var redactionEvent *gomatrixserverlib.Event
-		roomNID, stateAtEvent, redactionEvent, redactedEventID, err = db.StoreEvent(ctx, ev.Unwrap(), nil, authNids)
+		roomNID, stateAtEvent, redactionEvent, redactedEventID, err = db.StoreEvent(ctx, ev.Unwrap(), nil, authNids, false)
 		if err != nil {
 			logrus.WithError(err).WithField("event_id", ev.EventID()).Error("Failed to persist event")
 			continue

roomserver/internal/perform/perform_invite.go

@@ -183,7 +183,8 @@ func (r *Inviter) PerformInvite(
 			},
 		}
 		inputRes := &api.InputRoomEventsResponse{}
-		if err = r.Inputer.InputRoomEvents(context.Background(), inputReq, inputRes); err != nil {
+		r.Inputer.InputRoomEvents(context.Background(), inputReq, inputRes)
+		if err = inputRes.Err(); err != nil {
 			return nil, fmt.Errorf("r.InputRoomEvents: %w", err)
 		}
 	} else {

roomserver/internal/perform/perform_join.go

@@ -183,33 +183,33 @@ func (r *Joiner) performJoinRoomByID(
 		return "", fmt.Errorf("eb.SetContent: %w", err)
 	}
 
-	// First work out if this is in response to an existing invite
-	// from a federated server. If it is then we avoid the situation
-	// where we might think we know about a room in the following
-	// section but don't know the latest state as all of our users
-	// have left.
+	// Force a federated join if we aren't in the room and we've been
+	// given some server names to try joining by.
 	serverInRoom, _ := helpers.IsServerCurrentlyInRoom(ctx, r.DB, r.ServerName, req.RoomIDOrAlias)
+	forceFederatedJoin := len(req.ServerNames) > 0 && !serverInRoom
+
+	// Force a federated join if we're dealing with a pending invite
+	// and we aren't in the room.
 	isInvitePending, inviteSender, _, err := helpers.IsInvitePending(ctx, r.DB, req.RoomIDOrAlias, req.UserID)
-	if err == nil && isInvitePending && !serverInRoom {
-		// Check if there's an invite pending.
+	if err == nil && isInvitePending {
 		_, inviterDomain, ierr := gomatrixserverlib.SplitID('@', inviteSender)
 		if ierr != nil {
 			return "", fmt.Errorf("gomatrixserverlib.SplitID: %w", err)
 		}
 
-		// Check that the domain isn't ours. If it's local then we don't
-		// need to do anything as our own copy of the room state will be
-		// up-to-date.
+		// If we were invited by someone from another server then we can
+		// assume they are in the room so we can join via them.
 		if inviterDomain != r.Cfg.Matrix.ServerName {
-			// Add the server of the person who invited us to the server list,
-			// as they should be a fairly good bet.
 			req.ServerNames = append(req.ServerNames, inviterDomain)
-
-			// Perform a federated room join.
-			return req.RoomIDOrAlias, r.performFederatedJoinRoomByID(ctx, req)
+			forceFederatedJoin = true
 		}
 	}
 
+	// If we should do a forced federated join then do that.
+	if forceFederatedJoin {
+		return req.RoomIDOrAlias, r.performFederatedJoinRoomByID(ctx, req)
+	}
+
 	// Try to construct an actual join event from the template.
 	// If this succeeds then it is a sign that the room already exists
 	// locally on the homeserver.
@@ -247,7 +247,8 @@ func (r *Joiner) performJoinRoomByID(
 				},
 			}
 			inputRes := api.InputRoomEventsResponse{}
-			if err = r.Inputer.InputRoomEvents(ctx, &inputReq, &inputRes); err != nil {
+			r.Inputer.InputRoomEvents(ctx, &inputReq, &inputRes)
+			if err = inputRes.Err(); err != nil {
 				var notAllowed *gomatrixserverlib.NotAllowed
 				if errors.As(err, &notAllowed) {
 					return "", &api.PerformError{

roomserver/internal/perform/perform_leave.go

@@ -139,7 +139,8 @@ func (r *Leaver) performLeaveRoomByID(
 		},
 	}
 	inputRes := api.InputRoomEventsResponse{}
-	if err = r.Inputer.InputRoomEvents(ctx, &inputReq, &inputRes); err != nil {
+	r.Inputer.InputRoomEvents(ctx, &inputReq, &inputRes)
+	if err = inputRes.Err(); err != nil {
 		return nil, fmt.Errorf("r.InputRoomEvents: %w", err)
 	}