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Add typing notifications to /sync responses - fixes #635 (#718)

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This PR adds a new consumer for typing notifications in syncapi. It also brings changes to syncserver.go and some related files so EDUs can better fit in /sync responses.

Fixes #635.
Fixes #574.
This commit is contained in:
Alex Chen 2019-07-12 22:59:53 +08:00 committed by GitHub
parent f8463063ac
commit 29841bed6b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
19 changed files with 712 additions and 252 deletions
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9
syncapi/consumers/clientapi.go
View File

@ -22,6 +22,7 @@ import (
"github.com/matrix-org/dendrite/common/config"
"github.com/matrix-org/dendrite/syncapi/storage"
"github.com/matrix-org/dendrite/syncapi/sync"
"github.com/matrix-org/dendrite/syncapi/types"
log "github.com/sirupsen/logrus"
sarama "gopkg.in/Shopify/sarama.v1"
)
@ -29,7 +30,7 @@ import (
// OutputClientDataConsumer consumes events that originated in the client API server.
type OutputClientDataConsumer struct {
clientAPIConsumer *common.ContinualConsumer
db *storage.SyncServerDatabase
db *storage.SyncServerDatasource
notifier *sync.Notifier
}
@ -38,7 +39,7 @@ func NewOutputClientDataConsumer(
cfg *config.Dendrite,
kafkaConsumer sarama.Consumer,
n *sync.Notifier,
store *storage.SyncServerDatabase,
store *storage.SyncServerDatasource,
) *OutputClientDataConsumer {
consumer := common.ContinualConsumer{
@ -78,7 +79,7 @@ func (s *OutputClientDataConsumer) onMessage(msg *sarama.ConsumerMessage) error
"room_id": output.RoomID,
}).Info("received data from client API server")
syncStreamPos, err := s.db.UpsertAccountData(
pduPos, err := s.db.UpsertAccountData(
context.TODO(), string(msg.Key), output.RoomID, output.Type,
)
if err != nil {
@ -89,7 +90,7 @@ func (s *OutputClientDataConsumer) onMessage(msg *sarama.ConsumerMessage) error
}).Panicf("could not save account data")
}
s.notifier.OnNewEvent(nil, string(msg.Key), syncStreamPos)
s.notifier.OnNewEvent(nil, "", []string{string(msg.Key)}, types.SyncPosition{PDUPosition: pduPos})
return nil
}

12
syncapi/consumers/roomserver.go
View File

@ -33,7 +33,7 @@ import (
// OutputRoomEventConsumer consumes events that originated in the room server.
type OutputRoomEventConsumer struct {
roomServerConsumer *common.ContinualConsumer
db *storage.SyncServerDatabase
db *storage.SyncServerDatasource
notifier *sync.Notifier
query api.RoomserverQueryAPI
}
@ -43,7 +43,7 @@ func NewOutputRoomEventConsumer(
cfg *config.Dendrite,
kafkaConsumer sarama.Consumer,
n *sync.Notifier,
store *storage.SyncServerDatabase,
store *storage.SyncServerDatasource,
queryAPI api.RoomserverQueryAPI,
) *OutputRoomEventConsumer {
@ -126,7 +126,7 @@ func (s *OutputRoomEventConsumer) onNewRoomEvent(
}
}
syncStreamPos, err := s.db.WriteEvent(
pduPos, err := s.db.WriteEvent(
ctx,
&ev,
addsStateEvents,
@ -144,7 +144,7 @@ func (s *OutputRoomEventConsumer) onNewRoomEvent(
}).Panicf("roomserver output log: write event failure")
return nil
}
s.notifier.OnNewEvent(&ev, "", types.StreamPosition(syncStreamPos))
s.notifier.OnNewEvent(&ev, "", nil, types.SyncPosition{PDUPosition: pduPos})
return nil
}
@ -152,7 +152,7 @@ func (s *OutputRoomEventConsumer) onNewRoomEvent(
func (s *OutputRoomEventConsumer) onNewInviteEvent(
ctx context.Context, msg api.OutputNewInviteEvent,
) error {
syncStreamPos, err := s.db.AddInviteEvent(ctx, msg.Event)
pduPos, err := s.db.AddInviteEvent(ctx, msg.Event)
if err != nil {
// panic rather than continue with an inconsistent database
log.WithFields(log.Fields{
@ -161,7 +161,7 @@ func (s *OutputRoomEventConsumer) onNewInviteEvent(
}).Panicf("roomserver output log: write invite failure")
return nil
}
s.notifier.OnNewEvent(&msg.Event, "", syncStreamPos)
s.notifier.OnNewEvent(&msg.Event, "", nil, types.SyncPosition{PDUPosition: pduPos})
return nil
}

96
syncapi/consumers/typingserver.go Normal file
View File

@ -0,0 +1,96 @@
// Copyright 2019 Alex Chen
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package consumers
import (
"encoding/json"
"github.com/matrix-org/dendrite/common"
"github.com/matrix-org/dendrite/common/config"
"github.com/matrix-org/dendrite/syncapi/storage"
"github.com/matrix-org/dendrite/syncapi/sync"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/dendrite/typingserver/api"
log "github.com/sirupsen/logrus"
sarama "gopkg.in/Shopify/sarama.v1"
)
// OutputTypingEventConsumer consumes events that originated in the typing server.
type OutputTypingEventConsumer struct {
typingConsumer *common.ContinualConsumer
db *storage.SyncServerDatasource
notifier *sync.Notifier
}
// NewOutputTypingEventConsumer creates a new OutputTypingEventConsumer.
// Call Start() to begin consuming from the typing server.
func NewOutputTypingEventConsumer(
cfg *config.Dendrite,
kafkaConsumer sarama.Consumer,
n *sync.Notifier,
store *storage.SyncServerDatasource,
) *OutputTypingEventConsumer {
consumer := common.ContinualConsumer{
Topic: string(cfg.Kafka.Topics.OutputTypingEvent),
Consumer: kafkaConsumer,
PartitionStore: store,
}
s := &OutputTypingEventConsumer{
typingConsumer: &consumer,
db: store,
notifier: n,
}
consumer.ProcessMessage = s.onMessage
return s
}
// Start consuming from typing api
func (s *OutputTypingEventConsumer) Start() error {
s.db.SetTypingTimeoutCallback(func(userID, roomID string, latestSyncPosition int64) {
s.notifier.OnNewEvent(nil, roomID, nil, types.SyncPosition{TypingPosition: latestSyncPosition})
})
return s.typingConsumer.Start()
}
func (s *OutputTypingEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
var output api.OutputTypingEvent
if err := json.Unmarshal(msg.Value, &output); err != nil {
// If the message was invalid, log it and move on to the next message in the stream
log.WithError(err).Errorf("typing server output log: message parse failure")
return nil
}
log.WithFields(log.Fields{
"room_id": output.Event.RoomID,
"user_id": output.Event.UserID,
"typing": output.Event.Typing,
}).Debug("received data from typing server")
var typingPos int64
typingEvent := output.Event
if typingEvent.Typing {
typingPos = s.db.AddTypingUser(typingEvent.UserID, typingEvent.RoomID, output.ExpireTime)
} else {
typingPos = s.db.RemoveTypingUser(typingEvent.UserID, typingEvent.RoomID)
}
s.notifier.OnNewEvent(nil, output.Event.RoomID, nil, types.SyncPosition{TypingPosition: typingPos})
return nil
}

2
syncapi/routing/routing.go
View File

@ -34,7 +34,7 @@ const pathPrefixR0 = "/_matrix/client/r0"
// Due to Setup being used to call many other functions, a gocyclo nolint is
// applied:
// nolint: gocyclo
func Setup(apiMux *mux.Router, srp *sync.RequestPool, syncDB *storage.SyncServerDatabase, deviceDB *devices.Database) {
func Setup(apiMux *mux.Router, srp *sync.RequestPool, syncDB *storage.SyncServerDatasource, deviceDB *devices.Database) {
r0mux := apiMux.PathPrefix(pathPrefixR0).Subrouter()
authData := auth.Data{

4
syncapi/routing/state.go
View File

@ -40,7 +40,7 @@ type stateEventInStateResp struct {
// TODO: Check if the user is in the room. If not, check if the room's history
// is publicly visible. Current behaviour is returning an empty array if the
// user cannot see the room's history.
func OnIncomingStateRequest(req *http.Request, db *storage.SyncServerDatabase, roomID string) util.JSONResponse {
func OnIncomingStateRequest(req *http.Request, db *storage.SyncServerDatasource, roomID string) util.JSONResponse {
// TODO(#287): Auth request and handle the case where the user has left (where
// we should return the state at the poin they left)
@ -84,7 +84,7 @@ func OnIncomingStateRequest(req *http.Request, db *storage.SyncServerDatabase, r
// /rooms/{roomID}/state/{type}/{statekey} request. It will look in current
// state to see if there is an event with that type and state key, if there
// is then (by default) we return the content, otherwise a 404.
func OnIncomingStateTypeRequest(req *http.Request, db *storage.SyncServerDatabase, roomID string, evType, stateKey string) util.JSONResponse {
func OnIncomingStateTypeRequest(req *http.Request, db *storage.SyncServerDatasource, roomID string, evType, stateKey string) util.JSONResponse {
// TODO(#287): Auth request and handle the case where the user has left (where
// we should return the state at the poin they left)

4
syncapi/storage/account_data_table.go
View File

@ -19,8 +19,6 @@ import (
"database/sql"
"github.com/matrix-org/dendrite/common"
"github.com/matrix-org/dendrite/syncapi/types"
)
const accountDataSchema = `
@ -94,7 +92,7 @@ func (s *accountDataStatements) insertAccountData(
func (s *accountDataStatements) selectAccountDataInRange(
ctx context.Context,
userID string,
oldPos, newPos types.StreamPosition,
oldPos, newPos int64,
) (data map[string][]string, err error) {
data = make(map[string][]string)

11
syncapi/storage/output_room_events_table.go
View File

@ -23,7 +23,6 @@ import (
"github.com/lib/pq"
"github.com/matrix-org/dendrite/common"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/gomatrixserverlib"
log "github.com/sirupsen/logrus"
)
@ -109,11 +108,11 @@ func (s *outputRoomEventsStatements) prepare(db *sql.DB) (err error) {
return
}
// selectStateInRange returns the state events between the two given stream positions, exclusive of oldPos, inclusive of newPos.
// selectStateInRange returns the state events between the two given PDU stream positions, exclusive of oldPos, inclusive of newPos.
// Results are bucketed based on the room ID. If the same state is overwritten multiple times between the
// two positions, only the most recent state is returned.
func (s *outputRoomEventsStatements) selectStateInRange(
ctx context.Context, txn *sql.Tx, oldPos, newPos types.StreamPosition,
ctx context.Context, txn *sql.Tx, oldPos, newPos int64,
) (map[string]map[string]bool, map[string]streamEvent, error) {
stmt := common.TxStmt(txn, s.selectStateInRangeStmt)
@ -171,7 +170,7 @@ func (s *outputRoomEventsStatements) selectStateInRange(
eventIDToEvent[ev.EventID()] = streamEvent{
Event: ev,
streamPosition: types.StreamPosition(streamPos),
streamPosition: streamPos,
}
}
@ -223,7 +222,7 @@ func (s *outputRoomEventsStatements) insertEvent(
// RecentEventsInRoom returns the most recent events in the given room, up to a maximum of 'limit'.
func (s *outputRoomEventsStatements) selectRecentEvents(
ctx context.Context, txn *sql.Tx,
roomID string, fromPos, toPos types.StreamPosition, limit int,
roomID string, fromPos, toPos int64, limit int,
) ([]streamEvent, error) {
stmt := common.TxStmt(txn, s.selectRecentEventsStmt)
rows, err := stmt.QueryContext(ctx, roomID, fromPos, toPos, limit)
@ -286,7 +285,7 @@ func rowsToStreamEvents(rows *sql.Rows) ([]streamEvent, error) {
result = append(result, streamEvent{
Event: ev,
streamPosition: types.StreamPosition(streamPos),
streamPosition: streamPos,
transactionID: transactionID,
})
}

342
syncapi/storage/syncserver.go
View File

@ -17,7 +17,10 @@ package storage
import (
"context"
"database/sql"
"encoding/json"
"fmt"
"strconv"
"time"
"github.com/sirupsen/logrus"
@ -28,6 +31,7 @@ import (
_ "github.com/lib/pq"
"github.com/matrix-org/dendrite/common"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/dendrite/typingserver/cache"
"github.com/matrix-org/gomatrixserverlib"
)
@ -35,33 +39,35 @@ type stateDelta struct {
roomID string
stateEvents []gomatrixserverlib.Event
membership string
// The stream position of the latest membership event for this user, if applicable.
// The PDU stream position of the latest membership event for this user, if applicable.
// Can be 0 if there is no membership event in this delta.
membershipPos types.StreamPosition
membershipPos int64
}
// Same as gomatrixserverlib.Event but also has the stream position for this event.
// Same as gomatrixserverlib.Event but also has the PDU stream position for this event.
type streamEvent struct {
gomatrixserverlib.Event
streamPosition types.StreamPosition
streamPosition int64
transactionID *api.TransactionID
}
// SyncServerDatabase represents a sync server database
type SyncServerDatabase struct {
// SyncServerDatabase represents a sync server datasource which manages
// both the database for PDUs and caches for EDUs.
type SyncServerDatasource struct {
db *sql.DB
common.PartitionOffsetStatements
accountData accountDataStatements
events outputRoomEventsStatements
roomstate currentRoomStateStatements
invites inviteEventsStatements
typingCache *cache.TypingCache
}
// NewSyncServerDatabase creates a new sync server database
func NewSyncServerDatabase(dataSourceName string) (*SyncServerDatabase, error) {
var d SyncServerDatabase
func NewSyncServerDatasource(dbDataSourceName string) (*SyncServerDatasource, error) {
var d SyncServerDatasource
var err error
if d.db, err = sql.Open("postgres", dataSourceName); err != nil {
if d.db, err = sql.Open("postgres", dbDataSourceName); err != nil {
return nil, err
}
if err = d.PartitionOffsetStatements.Prepare(d.db, "syncapi"); err != nil {
@ -79,11 +85,12 @@ func NewSyncServerDatabase(dataSourceName string) (*SyncServerDatabase, error) {
if err := d.invites.prepare(d.db); err != nil {
return nil, err
}
d.typingCache = cache.NewTypingCache()
return &d, nil
}
// AllJoinedUsersInRooms returns a map of room ID to a list of all joined user IDs.
func (d *SyncServerDatabase) AllJoinedUsersInRooms(ctx context.Context) (map[string][]string, error) {
func (d *SyncServerDatasource) AllJoinedUsersInRooms(ctx context.Context) (map[string][]string, error) {
return d.roomstate.selectJoinedUsers(ctx)
}
@ -92,7 +99,7 @@ func (d *SyncServerDatabase) AllJoinedUsersInRooms(ctx context.Context) (map[str
// If an event is not found in the database then it will be omitted from the list.
// Returns an error if there was a problem talking with the database.
// Does not include any transaction IDs in the returned events.
func (d *SyncServerDatabase) Events(ctx context.Context, eventIDs []string) ([]gomatrixserverlib.Event, error) {
func (d *SyncServerDatasource) Events(ctx context.Context, eventIDs []string) ([]gomatrixserverlib.Event, error) {
streamEvents, err := d.events.selectEvents(ctx, nil, eventIDs)
if err != nil {
return nil, err
@ -104,38 +111,38 @@ func (d *SyncServerDatabase) Events(ctx context.Context, eventIDs []string) ([]g
}
// WriteEvent into the database. It is not safe to call this function from multiple goroutines, as it would create races
// when generating the stream position for this event. Returns the sync stream position for the inserted event.
// when generating the sync stream position for this event. Returns the sync stream position for the inserted event.
// Returns an error if there was a problem inserting this event.
func (d *SyncServerDatabase) WriteEvent(
func (d *SyncServerDatasource) WriteEvent(
ctx context.Context,
ev *gomatrixserverlib.Event,
addStateEvents []gomatrixserverlib.Event,
addStateEventIDs, removeStateEventIDs []string,
transactionID *api.TransactionID,
) (streamPos types.StreamPosition, returnErr error) {
) (pduPosition int64, returnErr error) {
returnErr = common.WithTransaction(d.db, func(txn *sql.Tx) error {
var err error
pos, err := d.events.insertEvent(ctx, txn, ev, addStateEventIDs, removeStateEventIDs, transactionID)
if err != nil {
return err
}
streamPos = types.StreamPosition(pos)
pduPosition = pos
if len(addStateEvents) == 0 && len(removeStateEventIDs) == 0 {
// Nothing to do, the event may have just been a message event.
return nil
}
return d.updateRoomState(ctx, txn, removeStateEventIDs, addStateEvents, streamPos)
return d.updateRoomState(ctx, txn, removeStateEventIDs, addStateEvents, pduPosition)
})
return
}
func (d *SyncServerDatabase) updateRoomState(
func (d *SyncServerDatasource) updateRoomState(
ctx context.Context, txn *sql.Tx,
removedEventIDs []string,
addedEvents []gomatrixserverlib.Event,
streamPos types.StreamPosition,
pduPosition int64,
) error {
// remove first, then add, as we do not ever delete state, but do replace state which is a remove followed by an add.
for _, eventID := range removedEventIDs {
@ -157,7 +164,7 @@ func (d *SyncServerDatabase) updateRoomState(
}
membership = &value
}
if err := d.roomstate.upsertRoomState(ctx, txn, event, membership, int64(streamPos)); err != nil {
if err := d.roomstate.upsertRoomState(ctx, txn, event, membership, pduPosition); err != nil {
return err
}
}
@ -168,7 +175,7 @@ func (d *SyncServerDatabase) updateRoomState(
// GetStateEvent returns the Matrix state event of a given type for a given room with a given state key
// If no event could be found, returns nil
// If there was an issue during the retrieval, returns an error
func (d *SyncServerDatabase) GetStateEvent(
func (d *SyncServerDatasource) GetStateEvent(
ctx context.Context, roomID, evType, stateKey string,
) (*gomatrixserverlib.Event, error) {
return d.roomstate.selectStateEvent(ctx, roomID, evType, stateKey)
@ -177,7 +184,7 @@ func (d *SyncServerDatabase) GetStateEvent(
// GetStateEventsForRoom fetches the state events for a given room.
// Returns an empty slice if no state events could be found for this room.
// Returns an error if there was an issue with the retrieval.
func (d *SyncServerDatabase) GetStateEventsForRoom(
func (d *SyncServerDatasource) GetStateEventsForRoom(
ctx context.Context, roomID string,
) (stateEvents []gomatrixserverlib.Event, err error) {
err = common.WithTransaction(d.db, func(txn *sql.Tx) error {
@ -187,46 +194,49 @@ func (d *SyncServerDatabase) GetStateEventsForRoom(
return
}
// SyncStreamPosition returns the latest position in the sync stream. Returns 0 if there are no events yet.
func (d *SyncServerDatabase) SyncStreamPosition(ctx context.Context) (types.StreamPosition, error) {
return d.syncStreamPositionTx(ctx, nil)
// SyncPosition returns the latest positions for syncing.
func (d *SyncServerDatasource) SyncPosition(ctx context.Context) (types.SyncPosition, error) {
return d.syncPositionTx(ctx, nil)
}
func (d *SyncServerDatabase) syncStreamPositionTx(
func (d *SyncServerDatasource) syncPositionTx(
ctx context.Context, txn *sql.Tx,
) (types.StreamPosition, error) {
maxID, err := d.events.selectMaxEventID(ctx, txn)
) (sp types.SyncPosition, err error) {
maxEventID, err := d.events.selectMaxEventID(ctx, txn)
if err != nil {
return 0, err
return sp, err
}
maxAccountDataID, err := d.accountData.selectMaxAccountDataID(ctx, txn)
if err != nil {
return 0, err
return sp, err
}
if maxAccountDataID > maxID {
maxID = maxAccountDataID
if maxAccountDataID > maxEventID {
maxEventID = maxAccountDataID
}
maxInviteID, err := d.invites.selectMaxInviteID(ctx, txn)
if err != nil {
return 0, err
return sp, err
}
if maxInviteID > maxID {
maxID = maxInviteID
if maxInviteID > maxEventID {
maxEventID = maxInviteID
}
return types.StreamPosition(maxID), nil
sp.PDUPosition = maxEventID
sp.TypingPosition = d.typingCache.GetLatestSyncPosition()
return
}
// IncrementalSync returns all the data needed in order to create an incremental
// sync response for the given user. Events returned will include any client
// transaction IDs associated with the given device. These transaction IDs come
// from when the device sent the event via an API that included a transaction
// ID.
func (d *SyncServerDatabase) IncrementalSync(
// addPDUDeltaToResponse adds all PDU deltas to a sync response.
// IDs of all rooms the user joined are returned so EDU deltas can be added for them.
func (d *SyncServerDatasource) addPDUDeltaToResponse(
ctx context.Context,
device authtypes.Device,
fromPos, toPos types.StreamPosition,
fromPos, toPos int64,
numRecentEventsPerRoom int,
) (*types.Response, error) {
res *types.Response,
) ([]string, error) {
txn, err := d.db.BeginTx(ctx, &txReadOnlySnapshot)
if err != nil {
return nil, err
@ -235,7 +245,7 @@ func (d *SyncServerDatabase) IncrementalSync(
defer common.EndTransaction(txn, &succeeded)
// Work out which rooms to return in the response. This is done by getting not only the currently
// joined rooms, but also which rooms have membership transitions for this user between the 2 stream positions.
// joined rooms, but also which rooms have membership transitions for this user between the 2 PDU stream positions.
// This works out what the 'state' key should be for each room as well as which membership block
// to put the room into.
deltas, err := d.getStateDeltas(ctx, &device, txn, fromPos, toPos, device.UserID)
@ -243,8 +253,9 @@ func (d *SyncServerDatabase) IncrementalSync(
return nil, err
}
res := types.NewResponse(toPos)
joinedRoomIDs := make([]string, 0, len(deltas))
for _, delta := range deltas {
joinedRoomIDs = append(joinedRoomIDs, delta.roomID)
err = d.addRoomDeltaToResponse(ctx, &device, txn, fromPos, toPos, delta, numRecentEventsPerRoom, res)
if err != nil {
return nil, err
@ -257,52 +268,151 @@ func (d *SyncServerDatabase) IncrementalSync(
}
succeeded = true
return joinedRoomIDs, nil
}
// addTypingDeltaToResponse adds all typing notifications to a sync response
// since the specified position.
func (d *SyncServerDatasource) addTypingDeltaToResponse(
since int64,
joinedRoomIDs []string,
res *types.Response,
) error {
var jr types.JoinResponse
var ok bool
var err error
for _, roomID := range joinedRoomIDs {
if typingUsers, updated := d.typingCache.GetTypingUsersIfUpdatedAfter(
roomID, since,
); updated {
ev := gomatrixserverlib.ClientEvent{
Type: gomatrixserverlib.MTyping,
}
ev.Content, err = json.Marshal(map[string]interface{}{
"user_ids": typingUsers,
})
if err != nil {
return err
}
if jr, ok = res.Rooms.Join[roomID]; !ok {
jr = *types.NewJoinResponse()
}
jr.Ephemeral.Events = append(jr.Ephemeral.Events, ev)
res.Rooms.Join[roomID] = jr
}
}
return nil
}
// addEDUDeltaToResponse adds updates for EDUs of each type since fromPos if
// the positions of that type are not equal in fromPos and toPos.
func (d *SyncServerDatasource) addEDUDeltaToResponse(
fromPos, toPos types.SyncPosition,
joinedRoomIDs []string,
res *types.Response,
) (err error) {
if fromPos.TypingPosition != toPos.TypingPosition {
err = d.addTypingDeltaToResponse(
fromPos.TypingPosition, joinedRoomIDs, res,
)
}
return
}
// IncrementalSync returns all the data needed in order to create an incremental
// sync response for the given user. Events returned will include any client
// transaction IDs associated with the given device. These transaction IDs come
// from when the device sent the event via an API that included a transaction
// ID.
func (d *SyncServerDatasource) IncrementalSync(
ctx context.Context,
device authtypes.Device,
fromPos, toPos types.SyncPosition,
numRecentEventsPerRoom int,
) (*types.Response, error) {
nextBatchPos := fromPos.WithUpdates(toPos)
res := types.NewResponse(nextBatchPos)
var joinedRoomIDs []string
var err error
if fromPos.PDUPosition != toPos.PDUPosition {
joinedRoomIDs, err = d.addPDUDeltaToResponse(
ctx, device, fromPos.PDUPosition, toPos.PDUPosition, numRecentEventsPerRoom, res,
)
} else {
joinedRoomIDs, err = d.roomstate.selectRoomIDsWithMembership(
ctx, nil, device.UserID, "join",
)
}
if err != nil {
return nil, err
}
err = d.addEDUDeltaToResponse(
fromPos, toPos, joinedRoomIDs, res,
)
if err != nil {
return nil, err
}
return res, nil
}
// CompleteSync a complete /sync API response for the given user.
func (d *SyncServerDatabase) CompleteSync(
ctx context.Context, userID string, numRecentEventsPerRoom int,
) (*types.Response, error) {
// getResponseWithPDUsForCompleteSync creates a response and adds all PDUs needed
// to it. It returns toPos and joinedRoomIDs for use of adding EDUs.
func (d *SyncServerDatasource) getResponseWithPDUsForCompleteSync(
ctx context.Context,
userID string,
numRecentEventsPerRoom int,
) (
res *types.Response,
toPos types.SyncPosition,
joinedRoomIDs []string,
err error,
) {
// This needs to be all done in a transaction as we need to do multiple SELECTs, and we need to have
// a consistent view of the database throughout. This includes extracting the sync stream position.
// a consistent view of the database throughout. This includes extracting the sync position.
// This does have the unfortunate side-effect that all the matrixy logic resides in this function,
// but it's better to not hide the fact that this is being done in a transaction.
txn, err := d.db.BeginTx(ctx, &txReadOnlySnapshot)
if err != nil {
return nil, err
return
}
var succeeded bool
defer common.EndTransaction(txn, &succeeded)
// Get the current stream position which we will base the sync response on.
pos, err := d.syncStreamPositionTx(ctx, txn)
// Get the current sync position which we will base the sync response on.
toPos, err = d.syncPositionTx(ctx, txn)
if err != nil {
return nil, err
return
}
res = types.NewResponse(toPos)
// Extract room state and recent events for all rooms the user is joined to.
roomIDs, err := d.roomstate.selectRoomIDsWithMembership(ctx, txn, userID, "join")
joinedRoomIDs, err = d.roomstate.selectRoomIDsWithMembership(ctx, txn, userID, "join")
if err != nil {
return nil, err
return
}
// Build up a /sync response. Add joined rooms.
res := types.NewResponse(pos)
for _, roomID := range roomIDs {
for _, roomID := range joinedRoomIDs {
var stateEvents []gomatrixserverlib.Event
stateEvents, err = d.roomstate.selectCurrentState(ctx, txn, roomID)
if err != nil {
return nil, err
return
}
// TODO: When filters are added, we may need to call this multiple times to get enough events.
// See: https://github.com/matrix-org/synapse/blob/v0.19.3/synapse/handlers/sync.py#L316
var recentStreamEvents []streamEvent
recentStreamEvents, err = d.events.selectRecentEvents(
ctx, txn, roomID, types.StreamPosition(0), pos, numRecentEventsPerRoom,
ctx, txn, roomID, 0, toPos.PDUPosition, numRecentEventsPerRoom,
)
if err != nil {
return nil, err
return
}
// We don't include a device here as we don't need to send down
@ -311,10 +421,12 @@ func (d *SyncServerDatabase) CompleteSync(
stateEvents = removeDuplicates(stateEvents, recentEvents)
jr := types.NewJoinResponse()
if prevBatch := recentStreamEvents[0].streamPosition - 1; prevBatch > 0 {
jr.Timeline.PrevBatch = types.StreamPosition(prevBatch).String()
if prevPDUPos := recentStreamEvents[0].streamPosition - 1; prevPDUPos > 0 {
// Use the short form of batch token for prev_batch
jr.Timeline.PrevBatch = strconv.FormatInt(prevPDUPos, 10)
} else {
jr.Timeline.PrevBatch = types.StreamPosition(1).String()
// Use the short form of batch token for prev_batch
jr.Timeline.PrevBatch = "1"
}
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = true
@ -322,12 +434,34 @@ func (d *SyncServerDatabase) CompleteSync(
res.Rooms.Join[roomID] = *jr
}
if err = d.addInvitesToResponse(ctx, txn, userID, 0, pos, res); err != nil {
return nil, err
if err = d.addInvitesToResponse(ctx, txn, userID, 0, toPos.PDUPosition, res); err != nil {
return
}
succeeded = true
return res, err
return res, toPos, joinedRoomIDs, err
}
// CompleteSync returns a complete /sync API response for the given user.
func (d *SyncServerDatasource) CompleteSync(
ctx context.Context, userID string, numRecentEventsPerRoom int,
) (*types.Response, error) {
res, toPos, joinedRoomIDs, err := d.getResponseWithPDUsForCompleteSync(
ctx, userID, numRecentEventsPerRoom,
)
if err != nil {
return nil, err
}
// Use a zero value SyncPosition for fromPos so all EDU states are added.
err = d.addEDUDeltaToResponse(
types.SyncPosition{}, toPos, joinedRoomIDs, res,
)
if err != nil {
return nil, err
}
return res, nil
}
var txReadOnlySnapshot = sql.TxOptions{
@ -345,8 +479,8 @@ var txReadOnlySnapshot = sql.TxOptions{
// Returns a map following the format data[roomID] = []dataTypes
// If no data is retrieved, returns an empty map
// If there was an issue with the retrieval, returns an error
func (d *SyncServerDatabase) GetAccountDataInRange(
ctx context.Context, userID string, oldPos, newPos types.StreamPosition,
func (d *SyncServerDatasource) GetAccountDataInRange(
ctx context.Context, userID string, oldPos, newPos int64,
) (map[string][]string, error) {
return d.accountData.selectAccountDataInRange(ctx, userID, oldPos, newPos)
}
@ -357,26 +491,24 @@ func (d *SyncServerDatabase) GetAccountDataInRange(
// If no data with the given type, user ID and room ID exists in the database,
// creates a new row, else update the existing one
// Returns an error if there was an issue with the upsert
func (d *SyncServerDatabase) UpsertAccountData(
func (d *SyncServerDatasource) UpsertAccountData(
ctx context.Context, userID, roomID, dataType string,
) (types.StreamPosition, error) {
pos, err := d.accountData.insertAccountData(ctx, userID, roomID, dataType)
return types.StreamPosition(pos), err
) (int64, error) {
return d.accountData.insertAccountData(ctx, userID, roomID, dataType)
}
// AddInviteEvent stores a new invite event for a user.
// If the invite was successfully stored this returns the stream ID it was stored at.
// Returns an error if there was a problem communicating with the database.
func (d *SyncServerDatabase) AddInviteEvent(
func (d *SyncServerDatasource) AddInviteEvent(
ctx context.Context, inviteEvent gomatrixserverlib.Event,
) (types.StreamPosition, error) {
pos, err := d.invites.insertInviteEvent(ctx, inviteEvent)
return types.StreamPosition(pos), err
) (int64, error) {
return d.invites.insertInviteEvent(ctx, inviteEvent)
}
// RetireInviteEvent removes an old invite event from the database.
// Returns an error if there was a problem communicating with the database.
func (d *SyncServerDatabase) RetireInviteEvent(
func (d *SyncServerDatasource) RetireInviteEvent(
ctx context.Context, inviteEventID string,
) error {
// TODO: Record that invite has been retired in a stream so that we can
@ -385,10 +517,30 @@ func (d *SyncServerDatabase) RetireInviteEvent(
return err
}
func (d *SyncServerDatabase) addInvitesToResponse(
func (d *SyncServerDatasource) SetTypingTimeoutCallback(fn cache.TimeoutCallbackFn) {
d.typingCache.SetTimeoutCallback(fn)
}
// AddTypingUser adds a typing user to the typing cache.
// Returns the newly calculated sync position for typing notifications.
func (d *SyncServerDatasource) AddTypingUser(
userID, roomID string, expireTime *time.Time,
) int64 {
return d.typingCache.AddTypingUser(userID, roomID, expireTime)
}
// RemoveTypingUser removes a typing user from the typing cache.
// Returns the newly calculated sync position for typing notifications.
func (d *SyncServerDatasource) RemoveTypingUser(
userID, roomID string,
) int64 {
return d.typingCache.RemoveUser(userID, roomID)
}
func (d *SyncServerDatasource) addInvitesToResponse(
ctx context.Context, txn *sql.Tx,
userID string,
fromPos, toPos types.StreamPosition,
fromPos, toPos int64,
res *types.Response,
) error {
invites, err := d.invites.selectInviteEventsInRange(
@ -409,11 +561,11 @@ func (d *SyncServerDatabase) addInvitesToResponse(
}
// addRoomDeltaToResponse adds a room state delta to a sync response
func (d *SyncServerDatabase) addRoomDeltaToResponse(
func (d *SyncServerDatasource) addRoomDeltaToResponse(
ctx context.Context,
device *authtypes.Device,
txn *sql.Tx,
fromPos, toPos types.StreamPosition,
fromPos, toPos int64,
delta stateDelta,
numRecentEventsPerRoom int,
res *types.Response,
@ -445,10 +597,12 @@ func (d *SyncServerDatabase) addRoomDeltaToResponse(
switch delta.membership {
case "join":
jr := types.NewJoinResponse()
if prevBatch := recentStreamEvents[0].streamPosition - 1; prevBatch > 0 {
jr.Timeline.PrevBatch = types.StreamPosition(prevBatch).String()
if prevPDUPos := recentStreamEvents[0].streamPosition - 1; prevPDUPos > 0 {
// Use the short form of batch token for prev_batch
jr.Timeline.PrevBatch = strconv.FormatInt(prevPDUPos, 10)
} else {
jr.Timeline.PrevBatch = types.StreamPosition(1).String()
// Use the short form of batch token for prev_batch
jr.Timeline.PrevBatch = "1"
}
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
@ -460,10 +614,12 @@ func (d *SyncServerDatabase) addRoomDeltaToResponse(
// TODO: recentEvents may contain events that this user is not allowed to see because they are
// no longer in the room.
lr := types.NewLeaveResponse()
if prevBatch := recentStreamEvents[0].streamPosition - 1; prevBatch > 0 {
lr.Timeline.PrevBatch = types.StreamPosition(prevBatch).String()
if prevPDUPos := recentStreamEvents[0].streamPosition - 1; prevPDUPos > 0 {
// Use the short form of batch token for prev_batch
lr.Timeline.PrevBatch = strconv.FormatInt(prevPDUPos, 10)
} else {
lr.Timeline.PrevBatch = types.StreamPosition(1).String()
// Use the short form of batch token for prev_batch
lr.Timeline.PrevBatch = "1"
}
lr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
lr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
@ -476,7 +632,7 @@ func (d *SyncServerDatabase) addRoomDeltaToResponse(
// fetchStateEvents converts the set of event IDs into a set of events. It will fetch any which are missing from the database.
// Returns a map of room ID to list of events.
func (d *SyncServerDatabase) fetchStateEvents(
func (d *SyncServerDatasource) fetchStateEvents(
ctx context.Context, txn *sql.Tx,
roomIDToEventIDSet map[string]map[string]bool,
eventIDToEvent map[string]streamEvent,
@ -521,7 +677,7 @@ func (d *SyncServerDatabase) fetchStateEvents(
return stateBetween, nil
}
func (d *SyncServerDatabase) fetchMissingStateEvents(
func (d *SyncServerDatasource) fetchMissingStateEvents(
ctx context.Context, txn *sql.Tx, eventIDs []string,
) ([]streamEvent, error) {
// Fetch from the events table first so we pick up the stream ID for the
@ -560,9 +716,9 @@ func (d *SyncServerDatabase) fetchMissingStateEvents(
return events, nil
}
func (d *SyncServerDatabase) getStateDeltas(
func (d *SyncServerDatasource) getStateDeltas(
ctx context.Context, device *authtypes.Device, txn *sql.Tx,
fromPos, toPos types.StreamPosition, userID string,
fromPos, toPos int64, userID string,
) ([]stateDelta, error) {
// Implement membership change algorithm: https://github.com/matrix-org/synapse/blob/v0.19.3/synapse/handlers/sync.py#L821
// - Get membership list changes for this user in this sync response
@ -601,7 +757,7 @@ func (d *SyncServerDatabase) getStateDeltas(
}
s := make([]streamEvent, len(allState))
for i := 0; i < len(s); i++ {
s[i] = streamEvent{Event: allState[i], streamPosition: types.StreamPosition(0)}
s[i] = streamEvent{Event: allState[i], streamPosition: 0}
}
state[roomID] = s
continue // we'll add this room in when we do joined rooms

66
syncapi/sync/notifier.go
View File

@ -26,7 +26,7 @@ import (
)
// Notifier will wake up sleeping requests when there is some new data.
// It does not tell requests what that data is, only the stream position which
// It does not tell requests what that data is, only the sync position which
// they can use to get at it. This is done to prevent races whereby we tell the caller
// the event, but the token has already advanced by the time they fetch it, resulting
// in missed events.
@ -35,18 +35,18 @@ type Notifier struct {
roomIDToJoinedUsers map[string]userIDSet
// Protects currPos and userStreams.
streamLock *sync.Mutex
// The latest sync stream position
currPos types.StreamPosition
// The latest sync position
currPos types.SyncPosition
// A map of user_id => UserStream which can be used to wake a given user's /sync request.
userStreams map[string]*UserStream
// The last time we cleaned out stale entries from the userStreams map
lastCleanUpTime time.Time
}
// NewNotifier creates a new notifier set to the given stream position.
// NewNotifier creates a new notifier set to the given sync position.
// In order for this to be of any use, the Notifier needs to be told all rooms and
// the joined users within each of them by calling Notifier.Load(*storage.SyncServerDatabase).
func NewNotifier(pos types.StreamPosition) *Notifier {
func NewNotifier(pos types.SyncPosition) *Notifier {
return &Notifier{
currPos: pos,
roomIDToJoinedUsers: make(map[string]userIDSet),
@ -58,20 +58,30 @@ func NewNotifier(pos types.StreamPosition) *Notifier {
// OnNewEvent is called when a new event is received from the room server. Must only be
// called from a single goroutine, to avoid races between updates which could set the
// current position in the stream incorrectly.
// Can be called either with a *gomatrixserverlib.Event, or with an user ID
func (n *Notifier) OnNewEvent(ev *gomatrixserverlib.Event, userID string, pos types.StreamPosition) {
// current sync position incorrectly.
// Chooses which user sync streams to update by a provided *gomatrixserverlib.Event
// (based on the users in the event's room),
// a roomID directly, or a list of user IDs, prioritised by parameter ordering.
// posUpdate contains the latest position(s) for one or more types of events.
// If a position in posUpdate is 0, it means no updates are available of that type.
// Typically a consumer supplies a posUpdate with the latest sync position for the
// event type it handles, leaving other fields as 0.
func (n *Notifier) OnNewEvent(
ev *gomatrixserverlib.Event, roomID string, userIDs []string,
posUpdate types.SyncPosition,
) {
// update the current position then notify relevant /sync streams.
// This needs to be done PRIOR to waking up users as they will read this value.
n.streamLock.Lock()
defer n.streamLock.Unlock()
n.currPos = pos
latestPos := n.currPos.WithUpdates(posUpdate)
n.currPos = latestPos
n.removeEmptyUserStreams()
if ev != nil {
// Map this event's room_id to a list of joined users, and wake them up.
userIDs := n.joinedUsers(ev.RoomID())
usersToNotify := n.joinedUsers(ev.RoomID())
// If this is an invite, also add in the invitee to this list.
if ev.Type() == "m.room.member" && ev.StateKey() != nil {
targetUserID := *ev.StateKey()
@ -84,11 +94,11 @@ func (n *Notifier) OnNewEvent(ev *gomatrixserverlib.Event, userID string, pos ty
// Keep the joined user map up-to-date
switch membership {
case "invite":
userIDs = append(userIDs, targetUserID)
usersToNotify = append(usersToNotify, targetUserID)
case "join":
// Manually append the new user's ID so they get notified
// along all members in the room
userIDs = append(userIDs, targetUserID)
usersToNotify = append(usersToNotify, targetUserID)
n.addJoinedUser(ev.RoomID(), targetUserID)
case "leave":
fallthrough
@ -98,11 +108,15 @@ func (n *Notifier) OnNewEvent(ev *gomatrixserverlib.Event, userID string, pos ty
}
}
for _, toNotifyUserID := range userIDs {
n.wakeupUser(toNotifyUserID, pos)
}
} else if len(userID) > 0 {
n.wakeupUser(userID, pos)
n.wakeupUsers(usersToNotify, latestPos)
} else if roomID != "" {
n.wakeupUsers(n.joinedUsers(roomID), latestPos)
} else if len(userIDs) > 0 {
n.wakeupUsers(userIDs, latestPos)
} else {
log.WithFields(log.Fields{
"posUpdate": posUpdate.String,
}).Warn("Notifier.OnNewEvent called but caller supplied no user to wake up")
}
}
@ -127,7 +141,7 @@ func (n *Notifier) GetListener(req syncRequest) UserStreamListener {
}
// Load the membership states required to notify users correctly.
func (n *Notifier) Load(ctx context.Context, db *storage.SyncServerDatabase) error {
func (n *Notifier) Load(ctx context.Context, db *storage.SyncServerDatasource) error {
roomToUsers, err := db.AllJoinedUsersInRooms(ctx)
if err != nil {
return err
@ -136,8 +150,11 @@ func (n *Notifier) Load(ctx context.Context, db *storage.SyncServerDatabase) err
return nil
}
// CurrentPosition returns the current stream position
func (n *Notifier) CurrentPosition() types.StreamPosition {
// CurrentPosition returns the current sync position
func (n *Notifier) CurrentPosition() types.SyncPosition {
n.streamLock.Lock()
defer n.streamLock.Unlock()
return n.currPos
}
@ -156,13 +173,14 @@ func (n *Notifier) setUsersJoinedToRooms(roomIDToUserIDs map[string][]string) {
}
}
func (n *Notifier) wakeupUser(userID string, newPos types.StreamPosition) {
func (n *Notifier) wakeupUsers(userIDs []string, newPos types.SyncPosition) {
for _, userID := range userIDs {
stream := n.fetchUserStream(userID, false)
if stream == nil {
return
}
if stream != nil {
stream.Broadcast(newPos) // wake up all goroutines Wait()ing on this stream
}
}
}
// fetchUserStream retrieves a stream unique to the given user. If makeIfNotExists is true,
// a stream will be made for this user if one doesn't exist and it will be returned. This

124
syncapi/sync/notifier_test.go
View File

@ -32,19 +32,40 @@ var (
randomMessageEvent gomatrixserverlib.Event
aliceInviteBobEvent gomatrixserverlib.Event
bobLeaveEvent gomatrixserverlib.Event
syncPositionVeryOld types.SyncPosition
syncPositionBefore types.SyncPosition
syncPositionAfter types.SyncPosition
syncPositionNewEDU types.SyncPosition
syncPositionAfter2 types.SyncPosition
)
var (
streamPositionVeryOld = types.StreamPosition(5)
streamPositionBefore = types.StreamPosition(11)
streamPositionAfter = types.StreamPosition(12)
streamPositionAfter2 = types.StreamPosition(13)
roomID = "!test:localhost"
alice = "@alice:localhost"
bob = "@bob:localhost"
)
func init() {
baseSyncPos := types.SyncPosition{
PDUPosition: 0,
TypingPosition: 0,
}
syncPositionVeryOld = baseSyncPos
syncPositionVeryOld.PDUPosition = 5
syncPositionBefore = baseSyncPos
syncPositionBefore.PDUPosition = 11
syncPositionAfter = baseSyncPos
syncPositionAfter.PDUPosition = 12
syncPositionNewEDU = syncPositionAfter
syncPositionNewEDU.TypingPosition = 1
syncPositionAfter2 = baseSyncPos
syncPositionAfter2.PDUPosition = 13
var err error
randomMessageEvent, err = gomatrixserverlib.NewEventFromTrustedJSON([]byte(`{
"type": "m.room.message",
@ -92,19 +113,19 @@ func init() {
// Test that the current position is returned if a request is already behind.
func TestImmediateNotification(t *testing.T) {
n := NewNotifier(streamPositionBefore)
pos, err := waitForEvents(n, newTestSyncRequest(alice, streamPositionVeryOld))
n := NewNotifier(syncPositionBefore)
pos, err := waitForEvents(n, newTestSyncRequest(alice, syncPositionVeryOld))
if err != nil {
t.Fatalf("TestImmediateNotification error: %s", err)
}
if pos != streamPositionBefore {
t.Fatalf("TestImmediateNotification want %d, got %d", streamPositionBefore, pos)
if pos != syncPositionBefore {
t.Fatalf("TestImmediateNotification want %d, got %d", syncPositionBefore, pos)
}
}
// Test that new events to a joined room unblocks the request.
func TestNewEventAndJoinedToRoom(t *testing.T) {
n := NewNotifier(streamPositionBefore)
n := NewNotifier(syncPositionBefore)
n.setUsersJoinedToRooms(map[string][]string{
roomID: {alice, bob},
})
@ -112,12 +133,12 @@ func TestNewEventAndJoinedToRoom(t *testing.T) {
var wg sync.WaitGroup
wg.Add(1)
go func() {
pos, err := waitForEvents(n, newTestSyncRequest(bob, streamPositionBefore))
pos, err := waitForEvents(n, newTestSyncRequest(bob, syncPositionBefore))
if err != nil {
t.Errorf("TestNewEventAndJoinedToRoom error: %s", err)
}
if pos != streamPositionAfter {
t.Errorf("TestNewEventAndJoinedToRoom want %d, got %d", streamPositionAfter, pos)
if pos != syncPositionAfter {
t.Errorf("TestNewEventAndJoinedToRoom want %d, got %d", syncPositionAfter, pos)
}
wg.Done()
}()
@ -125,14 +146,14 @@ func TestNewEventAndJoinedToRoom(t *testing.T) {
stream := n.fetchUserStream(bob, true)
waitForBlocking(stream, 1)
n.OnNewEvent(&randomMessageEvent, "", streamPositionAfter)
n.OnNewEvent(&randomMessageEvent, "", nil, syncPositionAfter)
wg.Wait()
}
// Test that an invite unblocks the request
func TestNewInviteEventForUser(t *testing.T) {
n := NewNotifier(streamPositionBefore)
n := NewNotifier(syncPositionBefore)
n.setUsersJoinedToRooms(map[string][]string{
roomID: {alice, bob},
})
@ -140,12 +161,12 @@ func TestNewInviteEventForUser(t *testing.T) {
var wg sync.WaitGroup
wg.Add(1)
go func() {
pos, err := waitForEvents(n, newTestSyncRequest(bob, streamPositionBefore))
pos, err := waitForEvents(n, newTestSyncRequest(bob, syncPositionBefore))
if err != nil {
t.Errorf("TestNewInviteEventForUser error: %s", err)
}
if pos != streamPositionAfter {
t.Errorf("TestNewInviteEventForUser want %d, got %d", streamPositionAfter, pos)
if pos != syncPositionAfter {
t.Errorf("TestNewInviteEventForUser want %d, got %d", syncPositionAfter, pos)
}
wg.Done()
}()
@ -153,14 +174,42 @@ func TestNewInviteEventForUser(t *testing.T) {
stream := n.fetchUserStream(bob, true)
waitForBlocking(stream, 1)
n.OnNewEvent(&aliceInviteBobEvent, "", streamPositionAfter)
n.OnNewEvent(&aliceInviteBobEvent, "", nil, syncPositionAfter)
wg.Wait()
}
// Test an EDU-only update wakes up the request.
func TestEDUWakeup(t *testing.T) {
n := NewNotifier(syncPositionAfter)
n.setUsersJoinedToRooms(map[string][]string{
roomID: {alice, bob},
})
var wg sync.WaitGroup
wg.Add(1)
go func() {
pos, err := waitForEvents(n, newTestSyncRequest(bob, syncPositionAfter))
if err != nil {
t.Errorf("TestNewInviteEventForUser error: %s", err)
}
if pos != syncPositionNewEDU {
t.Errorf("TestNewInviteEventForUser want %d, got %d", syncPositionNewEDU, pos)
}
wg.Done()
}()
stream := n.fetchUserStream(bob, true)
waitForBlocking(stream, 1)
n.OnNewEvent(&aliceInviteBobEvent, "", nil, syncPositionNewEDU)
wg.Wait()
}
// Test that all blocked requests get woken up on a new event.
func TestMultipleRequestWakeup(t *testing.T) {
n := NewNotifier(streamPositionBefore)
n := NewNotifier(syncPositionBefore)
n.setUsersJoinedToRooms(map[string][]string{
roomID: {alice, bob},
})
@ -168,12 +217,12 @@ func TestMultipleRequestWakeup(t *testing.T) {
var wg sync.WaitGroup
wg.Add(3)
poll := func() {
pos, err := waitForEvents(n, newTestSyncRequest(bob, streamPositionBefore))
pos, err := waitForEvents(n, newTestSyncRequest(bob, syncPositionBefore))
if err != nil {
t.Errorf("TestMultipleRequestWakeup error: %s", err)
}
if pos != streamPositionAfter {
t.Errorf("TestMultipleRequestWakeup want %d, got %d", streamPositionAfter, pos)
if pos != syncPositionAfter {
t.Errorf("TestMultipleRequestWakeup want %d, got %d", syncPositionAfter, pos)
}
wg.Done()
}
@ -184,7 +233,7 @@ func TestMultipleRequestWakeup(t *testing.T) {
stream := n.fetchUserStream(bob, true)
waitForBlocking(stream, 3)
n.OnNewEvent(&randomMessageEvent, "", streamPositionAfter)
n.OnNewEvent(&randomMessageEvent, "", nil, syncPositionAfter)
wg.Wait()
@ -198,7 +247,7 @@ func TestMultipleRequestWakeup(t *testing.T) {
func TestNewEventAndWasPreviouslyJoinedToRoom(t *testing.T) {
// listen as bob. Make bob leave room. Make alice send event to room.
// Make sure alice gets woken up only and not bob as well.
n := NewNotifier(streamPositionBefore)
n := NewNotifier(syncPositionBefore)
n.setUsersJoinedToRooms(map[string][]string{
roomID: {alice, bob},
})
@ -208,18 +257,18 @@ func TestNewEventAndWasPreviouslyJoinedToRoom(t *testing.T) {
// Make bob leave the room
leaveWG.Add(1)
go func() {
pos, err := waitForEvents(n, newTestSyncRequest(bob, streamPositionBefore))
pos, err := waitForEvents(n, newTestSyncRequest(bob, syncPositionBefore))
if err != nil {
t.Errorf("TestNewEventAndWasPreviouslyJoinedToRoom error: %s", err)
}
if pos != streamPositionAfter {
t.Errorf("TestNewEventAndWasPreviouslyJoinedToRoom want %d, got %d", streamPositionAfter, pos)
if pos != syncPositionAfter {
t.Errorf("TestNewEventAndWasPreviouslyJoinedToRoom want %d, got %d", syncPositionAfter, pos)
}
leaveWG.Done()
}()
bobStream := n.fetchUserStream(bob, true)
waitForBlocking(bobStream, 1)
n.OnNewEvent(&bobLeaveEvent, "", streamPositionAfter)
n.OnNewEvent(&bobLeaveEvent, "", nil, syncPositionAfter)
leaveWG.Wait()
// send an event into the room. Make sure alice gets it. Bob should not.
@ -227,19 +276,19 @@ func TestNewEventAndWasPreviouslyJoinedToRoom(t *testing.T) {
aliceStream := n.fetchUserStream(alice, true)
aliceWG.Add(1)
go func() {
pos, err := waitForEvents(n, newTestSyncRequest(alice, streamPositionAfter))
pos, err := waitForEvents(n, newTestSyncRequest(alice, syncPositionAfter))
if err != nil {
t.Errorf("TestNewEventAndWasPreviouslyJoinedToRoom error: %s", err)
}
if pos != streamPositionAfter2 {
t.Errorf("TestNewEventAndWasPreviouslyJoinedToRoom want %d, got %d", streamPositionAfter2, pos)
if pos != syncPositionAfter2 {
t.Errorf("TestNewEventAndWasPreviouslyJoinedToRoom want %d, got %d", syncPositionAfter2, pos)
}
aliceWG.Done()
}()
go func() {
// this should timeout with an error (but the main goroutine won't wait for the timeout explicitly)
_, err := waitForEvents(n, newTestSyncRequest(bob, streamPositionAfter))
_, err := waitForEvents(n, newTestSyncRequest(bob, syncPositionAfter))
if err == nil {
t.Errorf("TestNewEventAndWasPreviouslyJoinedToRoom expect error but got nil")
}
@ -248,7 +297,7 @@ func TestNewEventAndWasPreviouslyJoinedToRoom(t *testing.T) {
waitForBlocking(aliceStream, 1)
waitForBlocking(bobStream, 1)
n.OnNewEvent(&randomMessageEvent, "", streamPositionAfter2)
n.OnNewEvent(&randomMessageEvent, "", nil, syncPositionAfter2)
aliceWG.Wait()
// it's possible that at this point alice has been informed and bob is about to be informed, so wait
@ -256,18 +305,17 @@ func TestNewEventAndWasPreviouslyJoinedToRoom(t *testing.T) {
time.Sleep(1 * time.Millisecond)
}
// same as Notifier.WaitForEvents but with a timeout.
func waitForEvents(n *Notifier, req syncRequest) (types.StreamPosition, error) {
func waitForEvents(n *Notifier, req syncRequest) (types.SyncPosition, error) {
listener := n.GetListener(req)
defer listener.Close()
select {
case <-time.After(5 * time.Second):
return types.StreamPosition(0), fmt.Errorf(
return types.SyncPosition{}, fmt.Errorf(
"waitForEvents timed out waiting for %s (pos=%d)", req.device.UserID, req.since,
)
case <-listener.GetNotifyChannel(*req.since):
p := listener.GetStreamPosition()
p := listener.GetSyncPosition()
return p, nil
}
}
@ -280,7 +328,7 @@ func waitForBlocking(s *UserStream, numBlocking uint) {
}
}
func newTestSyncRequest(userID string, since types.StreamPosition) syncRequest {
func newTestSyncRequest(userID string, since types.SyncPosition) syncRequest {
return syncRequest{
device: authtypes.Device{UserID: userID},
timeout: 1 * time.Minute,

40
syncapi/sync/request.go
View File

@ -16,8 +16,10 @@ package sync
import (
"context"
"errors"
"net/http"
"strconv"
"strings"
"time"
"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
@ -36,7 +38,7 @@ type syncRequest struct {
device authtypes.Device
limit int
timeout time.Duration
since *types.StreamPosition // nil means that no since token was supplied
since *types.SyncPosition // nil means that no since token was supplied
wantFullState bool
log *log.Entry
}
@ -73,15 +75,41 @@ func getTimeout(timeoutMS string) time.Duration {
}
// getSyncStreamPosition tries to parse a 'since' token taken from the API to a
// stream position. If the string is empty then (nil, nil) is returned.
func getSyncStreamPosition(since string) (*types.StreamPosition, error) {
// types.SyncPosition. If the string is empty then (nil, nil) is returned.
// There are two forms of tokens: The full length form containing all PDU and EDU
// positions separated by "_", and the short form containing only the PDU
// position. Short form can be used for, e.g., `prev_batch` tokens.
func getSyncStreamPosition(since string) (*types.SyncPosition, error) {
if since == "" {
return nil, nil
}
i, err := strconv.Atoi(since)
posStrings := strings.Split(since, "_")
if len(posStrings) != 2 && len(posStrings) != 1 {
// A token can either be full length or short (PDU-only).
return nil, errors.New("malformed batch token")
}
positions := make([]int64, len(posStrings))
for i, posString := range posStrings {
pos, err := strconv.ParseInt(posString, 10, 64)
if err != nil {
return nil, err
}
token := types.StreamPosition(i)
return &token, nil
positions[i] = pos
}
if len(positions) == 2 {
// Full length token; construct SyncPosition with every entry in
// `positions`. These entries must have the same order with the fields
// in struct SyncPosition, so we disable the govet check below.
return &types.SyncPosition{ //nolint:govet
positions[0], positions[1],
}, nil
} else {
// Token with PDU position only
return &types.SyncPosition{
PDUPosition: positions[0],
}, nil
}
}

20
syncapi/sync/requestpool.go
View File

@ -31,13 +31,13 @@ import (
// RequestPool manages HTTP long-poll connections for /sync
type RequestPool struct {
db *storage.SyncServerDatabase
db *storage.SyncServerDatasource
accountDB *accounts.Database
notifier *Notifier
}
// NewRequestPool makes a new RequestPool
func NewRequestPool(db *storage.SyncServerDatabase, n *Notifier, adb *accounts.Database) *RequestPool {
func NewRequestPool(db *storage.SyncServerDatasource, n *Notifier, adb *accounts.Database) *RequestPool {
return &RequestPool{db, adb, n}
}
@ -92,11 +92,13 @@ func (rp *RequestPool) OnIncomingSyncRequest(req *http.Request, device *authtype
// respond with, so we skip the return an go back to waiting for content to
// be sent down or the request timing out.
var hasTimedOut bool
sincePos := *syncReq.since
for {
select {
// Wait for notifier to wake us up
case <-userStreamListener.GetNotifyChannel(currPos):
currPos = userStreamListener.GetStreamPosition()
case <-userStreamListener.GetNotifyChannel(sincePos):
currPos = userStreamListener.GetSyncPosition()
sincePos = currPos
// Or for timeout to expire
case <-timer.C:
// We just need to ensure we get out of the select after reaching the
@ -128,24 +130,24 @@ func (rp *RequestPool) OnIncomingSyncRequest(req *http.Request, device *authtype
}
}
func (rp *RequestPool) currentSyncForUser(req syncRequest, currentPos types.StreamPosition) (res *types.Response, err error) {
func (rp *RequestPool) currentSyncForUser(req syncRequest, latestPos types.SyncPosition) (res *types.Response, err error) {
// TODO: handle ignored users
if req.since == nil {
res, err = rp.db.CompleteSync(req.ctx, req.device.UserID, req.limit)
} else {
res, err = rp.db.IncrementalSync(req.ctx, req.device, *req.since, currentPos, req.limit)
res, err = rp.db.IncrementalSync(req.ctx, req.device, *req.since, latestPos, req.limit)
}
if err != nil {
return
}
res, err = rp.appendAccountData(res, req.device.UserID, req, currentPos)
res, err = rp.appendAccountData(res, req.device.UserID, req, latestPos.PDUPosition)
return
}
func (rp *RequestPool) appendAccountData(
data *types.Response, userID string, req syncRequest, currentPos types.StreamPosition,
data *types.Response, userID string, req syncRequest, currentPos int64,
) (*types.Response, error) {
// TODO: Account data doesn't have a sync position of its own, meaning that
// account data might be sent multiple time to the client if multiple account
@ -179,7 +181,7 @@ func (rp *RequestPool) appendAccountData(
}
// Sync is not initial, get all account data since the latest sync
dataTypes, err := rp.db.GetAccountDataInRange(req.ctx, userID, *req.since, currentPos)
dataTypes, err := rp.db.GetAccountDataInRange(req.ctx, userID, req.since.PDUPosition, currentPos)
if err != nil {
return nil, err
}

18
syncapi/sync/userstream.go
View File

@ -34,8 +34,8 @@ type UserStream struct {
lock sync.Mutex
// Closed when there is an update.
signalChannel chan struct{}
// The last stream position that there may have been an update for the suser
pos types.StreamPosition
// The last sync position that there may have been an update for the user
pos types.SyncPosition
// The last time when we had some listeners waiting
timeOfLastChannel time.Time
// The number of listeners waiting
@ -51,7 +51,7 @@ type UserStreamListener struct {
}
// NewUserStream creates a new user stream
func NewUserStream(userID string, currPos types.StreamPosition) *UserStream {
func NewUserStream(userID string, currPos types.SyncPosition) *UserStream {
return &UserStream{
UserID: userID,
timeOfLastChannel: time.Now(),
@ -84,8 +84,8 @@ func (s *UserStream) GetListener(ctx context.Context) UserStreamListener {
return listener
}
// Broadcast a new stream position for this user.
func (s *UserStream) Broadcast(pos types.StreamPosition) {
// Broadcast a new sync position for this user.
func (s *UserStream) Broadcast(pos types.SyncPosition) {
s.lock.Lock()
defer s.lock.Unlock()
@ -118,9 +118,9 @@ func (s *UserStream) TimeOfLastNonEmpty() time.Time {
return s.timeOfLastChannel
}
// GetStreamPosition returns last stream position which the UserStream was
// GetStreamPosition returns last sync position which the UserStream was
// notified about
func (s *UserStreamListener) GetStreamPosition() types.StreamPosition {
func (s *UserStreamListener) GetSyncPosition() types.SyncPosition {
s.userStream.lock.Lock()
defer s.userStream.lock.Unlock()
@ -132,11 +132,11 @@ func (s *UserStreamListener) GetStreamPosition() types.StreamPosition {
// sincePos specifies from which point we want to be notified about. If there
// has already been an update after sincePos we'll return a closed channel
// immediately.
func (s *UserStreamListener) GetNotifyChannel(sincePos types.StreamPosition) <-chan struct{} {
func (s *UserStreamListener) GetNotifyChannel(sincePos types.SyncPosition) <-chan struct{} {
s.userStream.lock.Lock()
defer s.userStream.lock.Unlock()
if sincePos < s.userStream.pos {
if s.userStream.pos.IsAfter(sincePos) {
// If the listener is behind, i.e. missed a potential update, then we
// want them to wake up immediately. We do this by returning a new
// closed stream, which returns immediately when selected.

16
syncapi/syncapi.go
View File

@ -28,7 +28,6 @@ import (
"github.com/matrix-org/dendrite/syncapi/routing"
"github.com/matrix-org/dendrite/syncapi/storage"
"github.com/matrix-org/dendrite/syncapi/sync"
"github.com/matrix-org/dendrite/syncapi/types"
)
// SetupSyncAPIComponent sets up and registers HTTP handlers for the SyncAPI
@ -39,17 +38,17 @@ func SetupSyncAPIComponent(
accountsDB *accounts.Database,
queryAPI api.RoomserverQueryAPI,
) {
syncDB, err := storage.NewSyncServerDatabase(string(base.Cfg.Database.SyncAPI))
syncDB, err := storage.NewSyncServerDatasource(string(base.Cfg.Database.SyncAPI))
if err != nil {
logrus.WithError(err).Panicf("failed to connect to sync db")
}
pos, err := syncDB.SyncStreamPosition(context.Background())
pos, err := syncDB.SyncPosition(context.Background())
if err != nil {
logrus.WithError(err).Panicf("failed to get stream position")
logrus.WithError(err).Panicf("failed to get sync position")
}
notifier := sync.NewNotifier(types.StreamPosition(pos))
notifier := sync.NewNotifier(pos)
err = notifier.Load(context.Background(), syncDB)
if err != nil {
logrus.WithError(err).Panicf("failed to start notifier")
@ -71,5 +70,12 @@ func SetupSyncAPIComponent(
logrus.WithError(err).Panicf("failed to start client data consumer")
}
typingConsumer := consumers.NewOutputTypingEventConsumer(
base.Cfg, base.KafkaConsumer, notifier, syncDB,
)
if err = typingConsumer.Start(); err != nil {
logrus.WithError(err).Panicf("failed to start typing server consumer")
}
routing.Setup(base.APIMux, requestPool, syncDB, deviceDB)
}

43
syncapi/types/types.go
View File

@ -21,12 +21,38 @@ import (
"github.com/matrix-org/gomatrixserverlib"
)
// StreamPosition represents the offset in the sync stream a client is at.
type StreamPosition int64
// SyncPosition contains the PDU and EDU stream sync positions for a client.
type SyncPosition struct {
// PDUPosition is the stream position for PDUs the client is at.
PDUPosition int64
// TypingPosition is the client's position for typing notifications.
TypingPosition int64
}
// String implements the Stringer interface.
func (sp StreamPosition) String() string {
return strconv.FormatInt(int64(sp), 10)
func (sp SyncPosition) String() string {
return strconv.FormatInt(sp.PDUPosition, 10) + "_" +
strconv.FormatInt(sp.TypingPosition, 10)
}
// IsAfter returns whether one SyncPosition refers to states newer than another SyncPosition.
func (sp SyncPosition) IsAfter(other SyncPosition) bool {
return sp.PDUPosition > other.PDUPosition ||
sp.TypingPosition > other.TypingPosition
}
// WithUpdates returns a copy of the SyncPosition with updates applied from another SyncPosition.
// If the latter SyncPosition contains a field that is not 0, it is considered an update,
// and its value will replace the corresponding value in the SyncPosition on which WithUpdates is called.
func (sp SyncPosition) WithUpdates(other SyncPosition) SyncPosition {
ret := sp
if other.PDUPosition != 0 {
ret.PDUPosition = other.PDUPosition
}
if other.TypingPosition != 0 {
ret.TypingPosition = other.TypingPosition
}
return ret
}
// PrevEventRef represents a reference to a previous event in a state event upgrade
@ -53,11 +79,10 @@ type Response struct {
}
// NewResponse creates an empty response with initialised maps.
func NewResponse(pos StreamPosition) *Response {
res := Response{}
// Make sure we send the next_batch as a string. We don't want to confuse clients by sending this
// as an integer even though (at the moment) it is.
res.NextBatch = pos.String()
func NewResponse(pos SyncPosition) *Response {
res := Response{
NextBatch: pos.String(),
}
// Pre-initialise the maps. Synapse will return {} even if there are no rooms under a specific section,
// so let's do the same thing. Bonus: this means we can't get dreaded 'assignment to entry in nil map' errors.
res.Rooms.Join = make(map[string]JoinResponse)

3
testfile
View File

@ -144,3 +144,6 @@ Events come down the correct room
local user can join room with version 5
User can invite local user to room with version 5
Inbound federation can receive room-join requests
Typing events appear in initial sync
Typing events appear in incremental sync
Typing events appear in gapped sync

7
typingserver/api/output.go
View File

@ -12,14 +12,17 @@
package api
import "time"
// OutputTypingEvent is an entry in typing server output kafka log.
// This contains the event with extra fields used to create 'm.typing' event
// in clientapi & federation.
type OutputTypingEvent struct {
// The Event for the typing edu event.
Event TypingEvent `json:"event"`
// Users typing in the room when the event was generated.
TypingUsers []string `json:"typing_users"`
// ExpireTime is the interval after which the user should no longer be
// considered typing. Only available if Event.Typing is true.
ExpireTime *time.Time
}
// TypingEvent represents a matrix edu event of type 'm.typing'.

123
typingserver/cache/cache.go vendored
View File

@ -22,25 +22,66 @@ const defaultTypingTimeout = 10 * time.Second
// userSet is a map of user IDs to a timer, timer fires at expiry.
type userSet map[string]*time.Timer
// TimeoutCallbackFn is a function called right after the removal of a user
// from the typing user list due to timeout.
// latestSyncPosition is the typing sync position after the removal.
type TimeoutCallbackFn func(userID, roomID string, latestSyncPosition int64)
type roomData struct {
syncPosition int64
userSet userSet
}
// TypingCache maintains a list of users typing in each room.
type TypingCache struct {
sync.RWMutex
data map[string]userSet
latestSyncPosition int64
data map[string]*roomData
timeoutCallback TimeoutCallbackFn
}
// Create a roomData with its sync position set to the latest sync position.
// Must only be called after locking the cache.
func (t *TypingCache) newRoomData() *roomData {
return &roomData{
syncPosition: t.latestSyncPosition,
userSet: make(userSet),
}
}
// NewTypingCache returns a new TypingCache initialised for use.
func NewTypingCache() *TypingCache {
return &TypingCache{data: make(map[string]userSet)}
return &TypingCache{data: make(map[string]*roomData)}
}
// SetTimeoutCallback sets a callback function that is called right after
// a user is removed from the typing user list due to timeout.
func (t *TypingCache) SetTimeoutCallback(fn TimeoutCallbackFn) {
t.timeoutCallback = fn
}
// GetTypingUsers returns the list of users typing in a room.
func (t *TypingCache) GetTypingUsers(roomID string) (users []string) {
func (t *TypingCache) GetTypingUsers(roomID string) []string {
users, _ := t.GetTypingUsersIfUpdatedAfter(roomID, 0)
// 0 should work above because the first position used will be 1.
return users
}
// GetTypingUsersIfUpdatedAfter returns all users typing in this room with
// updated == true if the typing sync position of the room is after the given
// position. Otherwise, returns an empty slice with updated == false.
func (t *TypingCache) GetTypingUsersIfUpdatedAfter(
roomID string, position int64,
) (users []string, updated bool) {
t.RLock()
usersMap, ok := t.data[roomID]
t.RUnlock()
if ok {
users = make([]string, 0, len(usersMap))
for userID := range usersMap {
defer t.RUnlock()
roomData, ok := t.data[roomID]
if ok && roomData.syncPosition > position {
updated = true
userSet := roomData.userSet
users = make([]string, 0, len(userSet))
for userID := range userSet {
users = append(users, userID)
}
}
@ -51,25 +92,41 @@ func (t *TypingCache) GetTypingUsers(roomID string) (users []string) {
// AddTypingUser sets an user as typing in a room.
// expire is the time when the user typing should time out.
// if expire is nil, defaultTypingTimeout is assumed.
func (t *TypingCache) AddTypingUser(userID, roomID string, expire *time.Time) {
// Returns the latest sync position for typing after update.
func (t *TypingCache) AddTypingUser(
userID, roomID string, expire *time.Time,
) int64 {
expireTime := getExpireTime(expire)
if until := time.Until(expireTime); until > 0 {
timer := time.AfterFunc(until, t.timeoutCallback(userID, roomID))
t.addUser(userID, roomID, timer)
timer := time.AfterFunc(until, func() {
latestSyncPosition := t.RemoveUser(userID, roomID)
if t.timeoutCallback != nil {
t.timeoutCallback(userID, roomID, latestSyncPosition)
}
})
return t.addUser(userID, roomID, timer)
}
return t.GetLatestSyncPosition()
}
// addUser with mutex lock & replace the previous timer.
func (t *TypingCache) addUser(userID, roomID string, expiryTimer *time.Timer) {
// Returns the latest typing sync position after update.
func (t *TypingCache) addUser(
userID, roomID string, expiryTimer *time.Timer,
) int64 {
t.Lock()
defer t.Unlock()
t.latestSyncPosition++
if t.data[roomID] == nil {
t.data[roomID] = make(userSet)
t.data[roomID] = t.newRoomData()
} else {
t.data[roomID].syncPosition = t.latestSyncPosition
}
// Stop the timer to cancel the call to timeoutCallback
if timer, ok := t.data[roomID][userID]; ok {
if timer, ok := t.data[roomID].userSet[userID]; ok {
// It may happen that at this stage timer fires but now we have a lock on t.
// Hence the execution of timeoutCallback will happen after we unlock.
// So we may lose a typing state, though this event is highly unlikely.
@ -78,26 +135,40 @@ func (t *TypingCache) addUser(userID, roomID string, expiryTimer *time.Timer) {
timer.Stop()
}
t.data[roomID][userID] = expiryTimer
}
t.data[roomID].userSet[userID] = expiryTimer
// Returns a function which is called after timeout happens.
// This removes the user.
func (t *TypingCache) timeoutCallback(userID, roomID string) func() {
return func() {
t.RemoveUser(userID, roomID)
}
return t.latestSyncPosition
}
// RemoveUser with mutex lock & stop the timer.
func (t *TypingCache) RemoveUser(userID, roomID string) {
// Returns the latest sync position for typing after update.
func (t *TypingCache) RemoveUser(userID, roomID string) int64 {
t.Lock()
defer t.Unlock()
if timer, ok := t.data[roomID][userID]; ok {
timer.Stop()
delete(t.data[roomID], userID)
roomData, ok := t.data[roomID]
if !ok {
return t.latestSyncPosition
}
timer, ok := roomData.userSet[userID]
if !ok {
return t.latestSyncPosition
}
timer.Stop()
delete(roomData.userSet, userID)
t.latestSyncPosition++
t.data[roomID].syncPosition = t.latestSyncPosition
return t.latestSyncPosition
}
func (t *TypingCache) GetLatestSyncPosition() int64 {
t.Lock()
defer t.Unlock()
return t.latestSyncPosition
}
func getExpireTime(expire *time.Time) time.Time {

10
typingserver/input/input.go
View File

@ -57,15 +57,21 @@ func (t *TypingServerInputAPI) InputTypingEvent(
}
func (t *TypingServerInputAPI) sendEvent(ite *api.InputTypingEvent) error {
userIDs := t.Cache.GetTypingUsers(ite.RoomID)
ev := &api.TypingEvent{
Type: gomatrixserverlib.MTyping,
RoomID: ite.RoomID,
UserID: ite.UserID,
Typing: ite.Typing,
}
ote := &api.OutputTypingEvent{
Event: *ev,
TypingUsers: userIDs,
}
if ev.Typing {
expireTime := ite.OriginServerTS.Time().Add(
time.Duration(ite.Timeout) * time.Millisecond,
)
ote.ExpireTime = &expireTime
}
eventJSON, err := json.Marshal(ote)