1 files changed, 32 insertions, 3 deletions
diff --git a/syncapi/synctypes/clientevent.go b/syncapi/synctypes/clientevent.go
index 66fb1d01..358a0c97 100644
--- a/syncapi/synctypes/clientevent.go
+++ b/syncapi/synctypes/clientevent.go
@@ -55,18 +55,27 @@ func ToClientEvents(serverEvs []gomatrixserverlib.PDU, format ClientEventFormat,
 		if err == nil && userID != nil {
 			sender = *userID
 		}
-		evs = append(evs, ToClientEvent(se, format, sender))
+
+		sk := se.StateKey()
+		if sk != nil && *sk != "" {
+			skUserID, err := userIDForSender(se.RoomID(), spec.SenderID(*sk))
+			if err == nil && skUserID != nil {
+				skString := skUserID.String()
+				sk = &skString
+			}
+		}
+		evs = append(evs, ToClientEvent(se, format, sender, sk))
 	}
 	return evs
 }
 
 // ToClientEvent converts a single server event to a client event.
-func ToClientEvent(se gomatrixserverlib.PDU, format ClientEventFormat, sender spec.UserID) ClientEvent {
+func ToClientEvent(se gomatrixserverlib.PDU, format ClientEventFormat, sender spec.UserID, stateKey *string) ClientEvent {
 	ce := ClientEvent{
 		Content:        spec.RawJSON(se.Content()),
 		Sender:         sender.String(),
 		Type:           se.Type(),
-		StateKey:       se.StateKey(),
+		StateKey:       stateKey,
 		Unsigned:       spec.RawJSON(se.Unsigned()),
 		OriginServerTS: se.OriginServerTS(),
 		EventID:        se.EventID(),
@@ -77,3 +86,23 @@ func ToClientEvent(se gomatrixserverlib.PDU, format ClientEventFormat, sender sp
 	}
 	return ce
 }
+
+// ToClientEvent converts a single server event to a client event.
+// It provides default logic for event.SenderID & event.StateKey -> userID conversions.
+func ToClientEventDefault(userIDQuery spec.UserIDForSender, event gomatrixserverlib.PDU) ClientEvent {
+	sender := spec.UserID{}
+	userID, err := userIDQuery(event.RoomID(), event.SenderID())
+	if err == nil && userID != nil {
+		sender = *userID
+	}
+
+	sk := event.StateKey()
+	if sk != nil && *sk != "" {
+		skUserID, err := userIDQuery(event.RoomID(), spec.SenderID(*event.StateKey()))
+		if err == nil && skUserID != nil {
+			skString := skUserID.String()
+			sk = &skString
+		}
+	}
+	return ToClientEvent(event, FormatAll, sender, sk)
+}