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Return state on calls to /message and lazy load members (#2218)

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This commit is contained in:
S7evinK 2022-03-01 15:39:56 +01:00 committed by GitHub
parent 471fda810a
commit af610df85a
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 42 additions and 30 deletions

View file

@ -44,7 +44,7 @@ func Context(
syncDB storage.Database,
roomID, eventID string,
) util.JSONResponse {
filter, err := parseContextParams(req)
filter, err := parseRoomEventFilter(req)
if err != nil {
errMsg := ""
switch err.(type) {
@ -164,7 +164,7 @@ func applyLazyLoadMembers(filter *gomatrixserverlib.RoomEventFilter, eventsAfter
return newState
}
func parseContextParams(req *http.Request) (*gomatrixserverlib.RoomEventFilter, error) {
func parseRoomEventFilter(req *http.Request) (*gomatrixserverlib.RoomEventFilter, error) {
// Default room filter
filter := &gomatrixserverlib.RoomEventFilter{Limit: 10}

View file

@ -55,13 +55,13 @@ func Test_parseContextParams(t *testing.T) {
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
gotFilter, err := parseContextParams(tt.req)
gotFilter, err := parseRoomEventFilter(tt.req)
if (err != nil) != tt.wantErr {
t.Errorf("parseContextParams() error = %v, wantErr %v", err, tt.wantErr)
t.Errorf("parseRoomEventFilter() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(gotFilter, tt.wantFilter) {
t.Errorf("parseContextParams() gotFilter = %v, want %v", gotFilter, tt.wantFilter)
t.Errorf("parseRoomEventFilter() gotFilter = %v, want %v", gotFilter, tt.wantFilter)
}
})
}

View file

@ -19,7 +19,6 @@ import (
"fmt"
"net/http"
"sort"
"strconv"
"github.com/matrix-org/dendrite/clientapi/jsonerror"
"github.com/matrix-org/dendrite/roomserver/api"
@ -45,8 +44,8 @@ type messagesReq struct {
fromStream *types.StreamingToken
device *userapi.Device
wasToProvided bool
limit int
backwardOrdering bool
filter *gomatrixserverlib.RoomEventFilter
}
type messagesResp struct {
@ -54,10 +53,9 @@ type messagesResp struct {
StartStream string `json:"start_stream,omitempty"` // NOTSPEC: so clients can hit /messages then immediately /sync with a latest sync token
End string `json:"end"`
Chunk []gomatrixserverlib.ClientEvent `json:"chunk"`
State []gomatrixserverlib.ClientEvent `json:"state"`
}
const defaultMessagesLimit = 10
// OnIncomingMessagesRequest implements the /messages endpoint from the
// client-server API.
// See: https://matrix.org/docs/spec/client_server/latest.html#get-matrix-client-r0-rooms-roomid-messages
@ -83,6 +81,14 @@ func OnIncomingMessagesRequest(
}
}
filter, err := parseRoomEventFilter(req)
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.InvalidArgumentValue("unable to parse filter"),
}
}
// Extract parameters from the request's URL.
// Pagination tokens.
var fromStream *types.StreamingToken
@ -143,18 +149,6 @@ func OnIncomingMessagesRequest(
wasToProvided = false
}
// Maximum number of events to return; defaults to 10.
limit := defaultMessagesLimit
if len(req.URL.Query().Get("limit")) > 0 {
limit, err = strconv.Atoi(req.URL.Query().Get("limit"))
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.InvalidArgumentValue("limit could not be parsed into an integer: " + err.Error()),
}
}
}
// TODO: Implement filtering (#587)
// Check the room ID's format.
@ -176,7 +170,7 @@ func OnIncomingMessagesRequest(
to: &to,
fromStream: fromStream,
wasToProvided: wasToProvided,
limit: limit,
filter: filter,
backwardOrdering: backwardOrdering,
device: device,
}
@ -187,10 +181,27 @@ func OnIncomingMessagesRequest(
return jsonerror.InternalServerError()
}
// at least fetch the membership events for the users returned in chunk if LazyLoadMembers is set
state := []gomatrixserverlib.ClientEvent{}
if filter.LazyLoadMembers {
memberShipToUser := make(map[string]*gomatrixserverlib.HeaderedEvent)
for _, evt := range clientEvents {
memberShip, err := db.GetStateEvent(req.Context(), roomID, gomatrixserverlib.MRoomMember, evt.Sender)
if err != nil {
util.GetLogger(req.Context()).WithError(err).Error("failed to get membership event for user")
continue
}
memberShipToUser[evt.Sender] = memberShip
}
for _, evt := range memberShipToUser {
state = append(state, gomatrixserverlib.HeaderedToClientEvent(evt, gomatrixserverlib.FormatAll))
}
}
util.GetLogger(req.Context()).WithFields(logrus.Fields{
"from": from.String(),
"to": to.String(),
"limit": limit,
"limit": filter.Limit,
"backwards": backwardOrdering,
"return_start": start.String(),
"return_end": end.String(),
@ -200,6 +211,7 @@ func OnIncomingMessagesRequest(
Chunk: clientEvents,
Start: start.String(),
End: end.String(),
State: state,
}
if emptyFromSupplied {
res.StartStream = fromStream.String()
@ -234,19 +246,18 @@ func (r *messagesReq) retrieveEvents() (
clientEvents []gomatrixserverlib.ClientEvent, start,
end types.TopologyToken, err error,
) {
eventFilter := gomatrixserverlib.DefaultRoomEventFilter()
eventFilter.Limit = r.limit
eventFilter := r.filter
// Retrieve the events from the local database.
var streamEvents []types.StreamEvent
if r.fromStream != nil {
toStream := r.to.StreamToken()
streamEvents, err = r.db.GetEventsInStreamingRange(
r.ctx, r.fromStream, &toStream, r.roomID, &eventFilter, r.backwardOrdering,
r.ctx, r.fromStream, &toStream, r.roomID, eventFilter, r.backwardOrdering,
)
} else {
streamEvents, err = r.db.GetEventsInTopologicalRange(
r.ctx, r.from, r.to, r.roomID, r.limit, r.backwardOrdering,
r.ctx, r.from, r.to, r.roomID, eventFilter.Limit, r.backwardOrdering,
)
}
if err != nil {
@ -434,7 +445,7 @@ func (r *messagesReq) handleEmptyEventsSlice() (
// Check if we have backward extremities for this room.
if len(backwardExtremities) > 0 {
// If so, retrieve as much events as needed through backfilling.
events, err = r.backfill(r.roomID, backwardExtremities, r.limit)
events, err = r.backfill(r.roomID, backwardExtremities, r.filter.Limit)
if err != nil {
return
}
@ -456,7 +467,7 @@ func (r *messagesReq) handleNonEmptyEventsSlice(streamEvents []types.StreamEvent
events []*gomatrixserverlib.HeaderedEvent, err error,
) {
// Check if we have enough events.
isSetLargeEnough := len(streamEvents) >= r.limit
isSetLargeEnough := len(streamEvents) >= r.filter.Limit
if !isSetLargeEnough {
// it might be fine we don't have up to 'limit' events, let's find out
if r.backwardOrdering {
@ -483,7 +494,7 @@ func (r *messagesReq) handleNonEmptyEventsSlice(streamEvents []types.StreamEvent
if len(backwardExtremities) > 0 && !isSetLargeEnough && r.backwardOrdering {
var pdus []*gomatrixserverlib.HeaderedEvent
// Only ask the remote server for enough events to reach the limit.
pdus, err = r.backfill(r.roomID, backwardExtremities, r.limit-len(streamEvents))
pdus, err = r.backfill(r.roomID, backwardExtremities, r.filter.Limit-len(streamEvents))
if err != nil {
return
}

View file

@ -597,6 +597,7 @@ Device list doesn't change if remote server is down
/context/ on non world readable room does not work
/context/ returns correct number of events
/context/ with lazy_load_members filter works
GET /rooms/:room_id/messages lazy loads members correctly
Can query remote device keys using POST after notification
Device deletion propagates over federation
Get left notifs in sync and /keys/changes when other user leaves