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Merge pull request #1776 from matrix-org/luke/fix-to-device-event-bug

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Do proper null-checks on decypted events to fix NPEs
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David Baker 2018-02-23 15:15:56 +00:00 committed by GitHub
commit d23cb4dc1f
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1 changed files with 16 additions and 3 deletions
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19
src/stores/RoomListStore.js
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@ -90,12 +90,25 @@ class RoomListStore extends Store {
// When an event is decrypted, it could mean we need to reorder the room
// list because we now know the type of the event.
case 'MatrixActions.Event.decrypted': {
const room = this._matrixClient.getRoom(payload.event.getRoomId());
// We may not have synced or done an initial generation of the lists
if (!this._matrixClient || !this._state.ready) break;
const roomId = payload.event.getRoomId();
// We may have decrypted an event without a roomId (e.g to_device)
if (!roomId) break;
const room = this._matrixClient.getRoom(roomId);
// We somehow decrypted an event for a room our client is unaware of
if (!room) break;
const liveTimeline = room.getLiveTimeline();
const eventTimeline = room.getTimelineForEvent(payload.event.getId());
if (!this._state.ready ||
liveTimeline !== eventTimeline ||
// Either this event was not added to the live timeline (e.g. pagination)
// or it doesn't affect the ordering of the room list.
if (liveTimeline !== eventTimeline ||
!this._eventTriggersRecentReorder(payload.event)
) break;
this._generateRoomLists();