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https://github.com/1f349/dendrite.git
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Get messages from before user left the room (#2824)
This is going to make `Can get rooms/{roomId}/messages for a departed room (SPEC-216)` pass, since we now only grep events from before the user left the room.
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parent
a553fe7705
commit
7506e3303e
@ -83,18 +83,18 @@ func OnIncomingMessagesRequest(
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defer sqlutil.EndTransactionWithCheck(snapshot, &succeeded, &err)
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// check if the user has already forgotten about this room
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isForgotten, roomExists, err := checkIsRoomForgotten(req.Context(), roomID, device.UserID, rsAPI)
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membershipResp, err := getMembershipForUser(req.Context(), roomID, device.UserID, rsAPI)
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if err != nil {
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return jsonerror.InternalServerError()
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}
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if !roomExists {
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if !membershipResp.RoomExists {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: jsonerror.Forbidden("room does not exist"),
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}
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}
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if isForgotten {
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if membershipResp.IsRoomForgotten {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: jsonerror.Forbidden("user already forgot about this room"),
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@ -195,6 +195,20 @@ func OnIncomingMessagesRequest(
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}
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}
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// If the user already left the room, grep events from before that
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if membershipResp.Membership == gomatrixserverlib.Leave {
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var token types.TopologyToken
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token, err = snapshot.EventPositionInTopology(req.Context(), membershipResp.EventID)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusInternalServerError,
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}
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}
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if backwardOrdering {
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from = token
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}
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}
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mReq := messagesReq{
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ctx: req.Context(),
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db: db,
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@ -283,17 +297,16 @@ func (m *messagesResp) applyLazyLoadMembers(
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}
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}
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func checkIsRoomForgotten(ctx context.Context, roomID, userID string, rsAPI api.SyncRoomserverAPI) (forgotten bool, exists bool, err error) {
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func getMembershipForUser(ctx context.Context, roomID, userID string, rsAPI api.SyncRoomserverAPI) (resp api.QueryMembershipForUserResponse, err error) {
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req := api.QueryMembershipForUserRequest{
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RoomID: roomID,
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UserID: userID,
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}
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resp := api.QueryMembershipForUserResponse{}
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if err := rsAPI.QueryMembershipForUser(ctx, &req, &resp); err != nil {
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return false, false, err
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return api.QueryMembershipForUserResponse{}, err
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}
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return resp.IsRoomForgotten, resp.RoomExists, nil
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return resp, nil
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}
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// retrieveEvents retrieves events from the local database for a request on
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@ -313,7 +326,11 @@ func (r *messagesReq) retrieveEvents() (
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}
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var events []*gomatrixserverlib.HeaderedEvent
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util.GetLogger(r.ctx).WithField("start", start).WithField("end", end).Infof("Fetched %d events locally", len(streamEvents))
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util.GetLogger(r.ctx).WithFields(logrus.Fields{
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"start": r.from,
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"end": r.to,
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"backwards": r.backwardOrdering,
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}).Infof("Fetched %d events locally", len(streamEvents))
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// There can be two reasons for streamEvents to be empty: either we've
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// reached the oldest event in the room (or the most recent one, depending
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@ -752,4 +752,6 @@ When user joins a room the state is included in the next sync
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When user joins a room the state is included in a gapped sync
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Messages that notify from another user increment notification_count
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Messages that highlight from another user increment unread highlight count
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Notifications can be viewed with GET /notifications
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Notifications can be viewed with GET /notifications
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Can get rooms/{roomId}/messages for a departed room (SPEC-216)
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Local device key changes appear in /keys/changes
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