Fix GET /directory/list/room/{roomID} (#2262)

* Let's try to work out why this endpoint lies

* Try that again

* Fix `QueryPublishedRooms`

* Remove logging

* Remove unnecessary change

* Remove unnecessary change

roomserver/internal/query/query.go

@@ -610,6 +610,14 @@ func (r *Queryer) QueryPublishedRooms(
 	req *api.QueryPublishedRoomsRequest,
 	res *api.QueryPublishedRoomsResponse,
 ) error {
+	if req.RoomID != "" {
+		visible, err := r.DB.GetPublishedRoom(ctx, req.RoomID)
+		if err == nil && visible {
+			res.RoomIDs = []string{req.RoomID}
+			return nil
+		}
+		return err
+	}
 	rooms, err := r.DB.GetPublishedRooms(ctx)
 	if err != nil {
 		return err

roomserver/storage/interface.go

@@ -139,6 +139,8 @@ type Database interface {
 	PublishRoom(ctx context.Context, roomID string, publish bool) error
 	// Returns a list of room IDs for rooms which are published.
 	GetPublishedRooms(ctx context.Context) ([]string, error)
+	// Returns whether a given room is published or not.
+	GetPublishedRoom(ctx context.Context, roomID string) (bool, error)
 
 	// TODO: factor out - from currentstateserver
 

roomserver/storage/shared/storage.go

@@ -669,6 +669,10 @@ func (d *Database) PublishRoom(ctx context.Context, roomID string, publish bool)
 	})
 }
 
+func (d *Database) GetPublishedRoom(ctx context.Context, roomID string) (bool, error) {
+	return d.PublishedTable.SelectPublishedFromRoomID(ctx, nil, roomID)
+}
+
 func (d *Database) GetPublishedRooms(ctx context.Context) ([]string, error) {
 	return d.PublishedTable.SelectAllPublishedRooms(ctx, nil, true)
 }