Whitelist origin_server_ts in redaction logic

The Spec doesn't mention it but both Synapse and Riot act as if origin_server_ts was whitelisted, and it was also confirmed in #matrix-dev to be reasonable behaviour.

2 files changed, 3 insertions, 3 deletions

diff --git a/events/event.cpp b/events/event.cpp
index d779f293..354aed03 100644
--- a/events/event.cpp
+++ b/events/event.cpp
@@ -87,6 +87,8 @@ RoomEvent::RoomEvent(Event::Type type) : Event(type) { }
 RoomEvent::RoomEvent(Type type, const QJsonObject& rep)
     : Event(type, rep), _id(rep["event_id"].toString())
     , _roomId(rep["room_id"].toString())
+    , _serverTimestamp(
+            QMatrixClient::fromJson<QDateTime>(rep["origin_server_ts"]))
     , _senderId(rep["sender"].toString())
 {
 //    if (_id.isEmpty())
@@ -112,8 +114,6 @@ RoomEvent::RoomEvent(Type type, const QJsonObject& rep)
         return;
     }
 
-    _serverTimestamp =
-            QMatrixClient::fromJson<QDateTime>(rep["origin_server_ts"]);
     _txnId = unsignedData.value("transactionId").toString();
     if (!_txnId.isEmpty())
         qCDebug(EVENTS) << "Event transactionId:" << _txnId;
diff --git a/room.cpp b/room.cpp
index dfca6bde..7f4d7684 100644
--- a/room.cpp
+++ b/room.cpp
@@ -716,7 +716,7 @@ void Room::Private::processRedaction(const RedactionEvent* redaction)
     }
     static const QStringList keepKeys =
         { "event_id", "type", "room_id", "sender", "state_key",
-          "prev_content", "content" };
+          "prev_content", "content", "origin_server_ts" };
     static const
         std::vector<std::pair<EventType, QStringList>> keepContentKeysMap
         { { Event::Type::RoomMember,    { "membership" } }