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Fix invite -> leave -> join dance when accepting invites (#2817)

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As mentioned in
https://github.com/matrix-org/dendrite/issues/2361#issuecomment-1139394565
and observed by ourselves, this should fix the odd `invite -> leave ->
join` dance when accepting invites.
This commit is contained in:
Till 2022-10-21 10:26:22 +02:00 committed by GitHub
parent 73e02463cf
commit 40cfb9a4ea
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2 changed files with 26 additions and 14 deletions
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7
syncapi/consumers/roomserver.go
View File

@ -428,6 +428,13 @@ func (s *OutputRoomEventConsumer) onRetireInviteEvent(
return
}
// Only notify clients about retired invite events, if the user didn't accept the invite.
// The PDU stream will also receive an event about accepting the invitation, so there should
// be a "smooth" transition from invite -> join, and not invite -> leave -> join
if msg.Membership == gomatrixserverlib.Join {
return
}
// Notify any active sync requests that the invite has been retired.
s.inviteStream.Advance(pduPos)
s.notifier.OnNewInvite(types.StreamingToken{InvitePosition: pduPos}, msg.TargetUserID)

33
syncapi/streams/stream_invite.go
View File

@ -74,21 +74,26 @@ func (p *InviteStreamProvider) IncrementalSync(
return to
}
for roomID := range retiredInvites {
if _, ok := req.Response.Rooms.Join[roomID]; !ok {
lr := types.NewLeaveResponse()
h := sha256.Sum256(append([]byte(roomID), []byte(strconv.FormatInt(int64(to), 10))...))
lr.Timeline.Events = append(lr.Timeline.Events, gomatrixserverlib.ClientEvent{
// fake event ID which muxes in the to position
EventID: "$" + base64.RawURLEncoding.EncodeToString(h[:]),
OriginServerTS: gomatrixserverlib.AsTimestamp(time.Now()),
RoomID: roomID,
Sender: req.Device.UserID,
StateKey: &req.Device.UserID,
Type: "m.room.member",
Content: gomatrixserverlib.RawJSON(`{"membership":"leave"}`),
})
req.Response.Rooms.Leave[roomID] = lr
if _, ok := req.Response.Rooms.Invite[roomID]; ok {
continue
}
if _, ok := req.Response.Rooms.Join[roomID]; ok {
continue
}
lr := types.NewLeaveResponse()
h := sha256.Sum256(append([]byte(roomID), []byte(strconv.FormatInt(int64(to), 10))...))
lr.Timeline.Events = append(lr.Timeline.Events, gomatrixserverlib.ClientEvent{
// fake event ID which muxes in the to position
EventID: "$" + base64.RawURLEncoding.EncodeToString(h[:]),
OriginServerTS: gomatrixserverlib.AsTimestamp(time.Now()),
RoomID: roomID,
Sender: req.Device.UserID,
StateKey: &req.Device.UserID,
Type: "m.room.member",
Content: gomatrixserverlib.RawJSON(`{"membership":"leave"}`),
})
req.Response.Rooms.Leave[roomID] = lr
}
return maxID