Further room version wiring (#936)

* Room version 2 by default, other wiring updates, update gomatrixserverlib

* Fix nil pointer exception

* Fix some more nil pointer exceptions hopefully

* Update gomatrixserverlib

* Send all room versions when joining, not just stable ones

* Remove room version cquery

* Get room version when getting events from the roomserver database

* Reset default back to room version 2

* Don't generate event IDs unless needed

* Revert "Remove room version cquery"

This reverts commit a170d58733.

* Query room version in federation API, client API as needed

* Improvements to make_join send_join dance

* Make room server producers use headered events

* Lint tweaks

* Update gomatrixserverlib

* Versioned SendJoin

* Query room version in syncapi backfill

* Handle transaction marshalling/unmarshalling within Dendrite

* Sorta fix federation (kinda)

* whoops commit federation API too

* Use NewEventFromTrustedJSON when getting events from the database

* Update gomatrixserverlib

* Strip headers on federationapi endpoints

* Fix bug in clientapi profile room version query

* Update gomatrixserverlib

* Return more useful error if room version query doesn't find the room

* Update gomatrixserverlib

* Update gomatrixserverlib

* Maybe fix federation

* Fix formatting directive

* Update sytest whitelist and blacklist

* Temporarily disable room versions 3 and 4 until gmsl is fixed

* Fix count of EDUs in logging

* Update gomatrixserverlib

* Update gomatrixserverlib

* Update gomatrixserverlib

* Rely on EventBuilder in gmsl to generate the event IDs for us

* Some review comments fixed

* Move function out of common and into gmsl

* Comment in federationsender destinationqueue

* Update gomatrixserverlib

clientapi/clientapi.go

@@ -46,7 +46,7 @@ func SetupClientAPIComponent(
 	transactionsCache *transactions.Cache,
 	fedSenderAPI federationSenderAPI.FederationSenderQueryAPI,
 ) {
-	roomserverProducer := producers.NewRoomserverProducer(inputAPI)
+	roomserverProducer := producers.NewRoomserverProducer(inputAPI, queryAPI)
 	typingProducer := producers.NewTypingServerProducer(typingInputAPI)
 
 	userUpdateProducer := &producers.UserUpdateProducer{

clientapi/producers/roomserver.go

@@ -24,27 +24,27 @@ import (
 // RoomserverProducer produces events for the roomserver to consume.
 type RoomserverProducer struct {
 	InputAPI api.RoomserverInputAPI
+	QueryAPI api.RoomserverQueryAPI
 }
 
 // NewRoomserverProducer creates a new RoomserverProducer
-func NewRoomserverProducer(inputAPI api.RoomserverInputAPI) *RoomserverProducer {
+func NewRoomserverProducer(inputAPI api.RoomserverInputAPI, queryAPI api.RoomserverQueryAPI) *RoomserverProducer {
 	return &RoomserverProducer{
 		InputAPI: inputAPI,
+		QueryAPI: queryAPI,
 	}
 }
 
 // SendEvents writes the given events to the roomserver input log. The events are written with KindNew.
 func (c *RoomserverProducer) SendEvents(
-	ctx context.Context, events []gomatrixserverlib.Event, sendAsServer gomatrixserverlib.ServerName,
+	ctx context.Context, events []gomatrixserverlib.HeaderedEvent, sendAsServer gomatrixserverlib.ServerName,
 	txnID *api.TransactionID,
 ) (string, error) {
 	ires := make([]api.InputRoomEvent, len(events))
 	for i, event := range events {
-		roomVersion := gomatrixserverlib.RoomVersionV1
-
 		ires[i] = api.InputRoomEvent{
 			Kind:          api.KindNew,
-			Event:         event.Headered(roomVersion),
+			Event:         event,
 			AuthEventIDs:  event.AuthEventIDs(),
 			SendAsServer:  string(sendAsServer),
 			TransactionID: txnID,
@@ -56,23 +56,20 @@ func (c *RoomserverProducer) SendEvents(
 // SendEventWithState writes an event with KindNew to the roomserver input log
 // with the state at the event as KindOutlier before it.
 func (c *RoomserverProducer) SendEventWithState(
-	ctx context.Context, state gomatrixserverlib.RespState, event gomatrixserverlib.Event,
+	ctx context.Context, state gomatrixserverlib.RespState, event gomatrixserverlib.HeaderedEvent,
 ) error {
 	outliers, err := state.Events()
 	if err != nil {
 		return err
 	}
 
-	// TODO: Room version here
+	var ires []api.InputRoomEvent
-	roomVersion := gomatrixserverlib.RoomVersionV1
+	for _, outlier := range outliers {
-
+		ires = append(ires, api.InputRoomEvent{
-	ires := make([]api.InputRoomEvent, len(outliers)+1)
-	for i, outlier := range outliers {
-		ires[i] = api.InputRoomEvent{
 			Kind:         api.KindOutlier,
-			Event:        outlier.Headered(roomVersion),
+			Event:        outlier.Headered(event.RoomVersion),
 			AuthEventIDs: outlier.AuthEventIDs(),
-		}
+		})
 	}
 
 	stateEventIDs := make([]string, len(state.StateEvents))
@@ -80,13 +77,13 @@ func (c *RoomserverProducer) SendEventWithState(
 		stateEventIDs[i] = state.StateEvents[i].EventID()
 	}
 
-	ires[len(outliers)] = api.InputRoomEvent{
+	ires = append(ires, api.InputRoomEvent{
 		Kind:          api.KindNew,
-		Event:         event.Headered(roomVersion),
+		Event:         event,
 		AuthEventIDs:  event.AuthEventIDs(),
 		HasState:      true,
 		StateEventIDs: stateEventIDs,
-	}
+	})
 
 	_, err = c.SendInputRoomEvents(ctx, ires)
 	return err
@@ -109,12 +106,16 @@ func (c *RoomserverProducer) SendInputRoomEvents(
 func (c *RoomserverProducer) SendInvite(
 	ctx context.Context, inviteEvent gomatrixserverlib.Event,
 ) error {
-	// TODO: Room version here
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: inviteEvent.RoomID()}
-	roomVersion := gomatrixserverlib.RoomVersionV1
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	err := c.QueryAPI.QueryRoomVersionForRoom(ctx, &verReq, &verRes)
+	if err != nil {
+		return err
+	}
 
 	request := api.InputRoomEventsRequest{
 		InputInviteEvents: []api.InputInviteEvent{{
-			Event: inviteEvent.Headered(roomVersion),
+			Event: inviteEvent.Headered(verRes.RoomVersion),
 		}},
 	}
 	var response api.InputRoomEventsResponse

clientapi/routing/createroom.go

@@ -237,7 +237,7 @@ func createRoom(
 		historyVisibility = historyVisibilityShared
 	}
 
-	var builtEvents []gomatrixserverlib.Event
+	var builtEvents []gomatrixserverlib.HeaderedEvent
 
 	// send events into the room in order of:
 	//  1- m.room.create
@@ -299,7 +299,7 @@ func createRoom(
 			builder.PrevEvents = []gomatrixserverlib.EventReference{builtEvents[i-1].EventReference()}
 		}
 		var ev *gomatrixserverlib.Event
-		ev, err = buildEvent(&builder, &authEvents, cfg, evTime)
+		ev, err = buildEvent(&builder, &authEvents, cfg, evTime, roomVersion)
 		if err != nil {
 			util.GetLogger(req.Context()).WithError(err).Error("buildEvent failed")
 			return jsonerror.InternalServerError()
@@ -311,7 +311,7 @@ func createRoom(
 		}
 
 		// Add the event to the list of auth events
-		builtEvents = append(builtEvents, *ev)
+		builtEvents = append(builtEvents, (*ev).Headered(roomVersion))
 		err = authEvents.AddEvent(ev)
 		if err != nil {
 			util.GetLogger(req.Context()).WithError(err).Error("authEvents.AddEvent failed")
@@ -368,6 +368,7 @@ func buildEvent(
 	provider gomatrixserverlib.AuthEventProvider,
 	cfg *config.Dendrite,
 	evTime time.Time,
+	roomVersion gomatrixserverlib.RoomVersion,
 ) (*gomatrixserverlib.Event, error) {
 	eventsNeeded, err := gomatrixserverlib.StateNeededForEventBuilder(builder)
 	if err != nil {
@@ -378,8 +379,10 @@ func buildEvent(
 		return nil, err
 	}
 	builder.AuthEvents = refs
-	eventID := fmt.Sprintf("$%s:%s", util.RandomString(16), cfg.Matrix.ServerName)
+	event, err := builder.Build(
-	event, err := builder.Build(eventID, evTime, cfg.Matrix.ServerName, cfg.Matrix.KeyID, cfg.Matrix.PrivateKey)
+		evTime, cfg.Matrix.ServerName, cfg.Matrix.KeyID,
+		cfg.Matrix.PrivateKey, roomVersion,
+	)
 	if err != nil {
 		return nil, fmt.Errorf("cannot build event %s : Builder failed to build. %w", builder.Type, err)
 	}

clientapi/routing/joinroom.go

@@ -27,6 +27,7 @@ import (
 	"github.com/matrix-org/dendrite/clientapi/producers"
 	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/common/config"
+	"github.com/matrix-org/dendrite/roomserver/api"
 	roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrix"
 	"github.com/matrix-org/gomatrixserverlib"
@@ -238,10 +239,17 @@ func (r joinRoomReq) joinRoomUsingServers(
 		return jsonerror.InternalServerError()
 	}
 
-	var queryRes roomserverAPI.QueryLatestEventsAndStateResponse
+	queryRes := roomserverAPI.QueryLatestEventsAndStateResponse{}
 	event, err := common.BuildEvent(r.req.Context(), &eb, r.cfg, r.evTime, r.queryAPI, &queryRes)
 	if err == nil {
-		if _, err = r.producer.SendEvents(r.req.Context(), []gomatrixserverlib.Event{*event}, r.cfg.Matrix.ServerName, nil); err != nil {
+		if _, err = r.producer.SendEvents(
+			r.req.Context(),
+			[]gomatrixserverlib.HeaderedEvent{
+				(*event).Headered(queryRes.RoomVersion),
+			},
+			r.cfg.Matrix.ServerName,
+			nil,
+		); err != nil {
 			util.GetLogger(r.req.Context()).WithError(err).Error("r.producer.SendEvents failed")
 			return jsonerror.InternalServerError()
 		}
@@ -299,7 +307,17 @@ func (r joinRoomReq) joinRoomUsingServers(
 // server was invalid this returns an error.
 // Otherwise this returns a JSONResponse.
 func (r joinRoomReq) joinRoomUsingServer(roomID string, server gomatrixserverlib.ServerName) (*util.JSONResponse, error) {
-	respMakeJoin, err := r.federation.MakeJoin(r.req.Context(), server, roomID, r.userID, []int{1})
+	// Ask the room server for information about room versions.
+	var request api.QueryRoomVersionCapabilitiesRequest
+	var response api.QueryRoomVersionCapabilitiesResponse
+	if err := r.queryAPI.QueryRoomVersionCapabilities(r.req.Context(), &request, &response); err != nil {
+		return nil, err
+	}
+	var supportedVersions []gomatrixserverlib.RoomVersion
+	for version := range response.AvailableRoomVersions {
+		supportedVersions = append(supportedVersions, version)
+	}
+	respMakeJoin, err := r.federation.MakeJoin(r.req.Context(), server, roomID, r.userID, supportedVersions)
 	if err != nil {
 		// TODO: Check if the user was not allowed to join the room.
 		return nil, err
@@ -312,9 +330,21 @@ func (r joinRoomReq) joinRoomUsingServer(roomID string, server gomatrixserverlib
 		return nil, err
 	}
 
-	eventID := fmt.Sprintf("$%s:%s", util.RandomString(16), r.cfg.Matrix.ServerName)
+	if respMakeJoin.RoomVersion == "" {
+		respMakeJoin.RoomVersion = gomatrixserverlib.RoomVersionV1
+	}
+	if _, err = respMakeJoin.RoomVersion.EventFormat(); err != nil {
+		return &util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.UnsupportedRoomVersion(
+				fmt.Sprintf("Room version '%s' is not supported", respMakeJoin.RoomVersion),
+			),
+		}, nil
+	}
+
 	event, err := respMakeJoin.JoinEvent.Build(
-		eventID, r.evTime, r.cfg.Matrix.ServerName, r.cfg.Matrix.KeyID, r.cfg.Matrix.PrivateKey,
+		r.evTime, r.cfg.Matrix.ServerName, r.cfg.Matrix.KeyID,
+		r.cfg.Matrix.PrivateKey, respMakeJoin.RoomVersion,
 	)
 	if err != nil {
 		util.GetLogger(r.req.Context()).WithError(err).Error("respMakeJoin.JoinEvent.Build failed")
@@ -322,7 +352,7 @@ func (r joinRoomReq) joinRoomUsingServer(roomID string, server gomatrixserverlib
 		return &res, nil
 	}
 
-	respSendJoin, err := r.federation.SendJoin(r.req.Context(), server, event)
+	respSendJoin, err := r.federation.SendJoin(r.req.Context(), server, event, respMakeJoin.RoomVersion)
 	if err != nil {
 		return nil, err
 	}
@@ -332,7 +362,9 @@ func (r joinRoomReq) joinRoomUsingServer(roomID string, server gomatrixserverlib
 	}
 
 	if err = r.producer.SendEventWithState(
-		r.req.Context(), gomatrixserverlib.RespState(respSendJoin.RespState), event,
+		r.req.Context(),
+		gomatrixserverlib.RespState(respSendJoin.RespState),
+		event.Headered(respMakeJoin.RoomVersion),
 	); err != nil {
 		util.GetLogger(r.req.Context()).WithError(err).Error("gomatrixserverlib.RespState failed")
 		res := jsonerror.InternalServerError()

clientapi/routing/membership.go

@@ -29,6 +29,7 @@ import (
 	"github.com/matrix-org/dendrite/clientapi/threepid"
 	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/common/config"
+	"github.com/matrix-org/dendrite/roomserver/api"
 	roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
 
@@ -45,6 +46,15 @@ func SendMembership(
 	queryAPI roomserverAPI.RoomserverQueryAPI, asAPI appserviceAPI.AppServiceQueryAPI,
 	producer *producers.RoomserverProducer,
 ) util.JSONResponse {
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	if err := queryAPI.QueryRoomVersionForRoom(req.Context(), &verReq, &verRes); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.UnsupportedRoomVersion(err.Error()),
+		}
+	}
+
 	var body threepid.MembershipRequest
 	if reqErr := httputil.UnmarshalJSONRequest(req, &body); reqErr != nil {
 		return *reqErr
@@ -95,7 +105,10 @@ func SendMembership(
 	}
 
 	if _, err := producer.SendEvents(
-		req.Context(), []gomatrixserverlib.Event{*event}, cfg.Matrix.ServerName, nil,
+		req.Context(),
+		[]gomatrixserverlib.HeaderedEvent{(*event).Headered(verRes.RoomVersion)},
+		cfg.Matrix.ServerName,
+		nil,
 	); err != nil {
 		util.GetLogger(req.Context()).WithError(err).Error("producer.SendEvents failed")
 		return jsonerror.InternalServerError()

clientapi/routing/profile.go

@@ -338,10 +338,16 @@ func buildMembershipEvents(
 	memberships []authtypes.Membership,
 	newProfile authtypes.Profile, userID string, cfg *config.Dendrite,
 	evTime time.Time, queryAPI api.RoomserverQueryAPI,
-) ([]gomatrixserverlib.Event, error) {
+) ([]gomatrixserverlib.HeaderedEvent, error) {
-	evs := []gomatrixserverlib.Event{}
+	evs := []gomatrixserverlib.HeaderedEvent{}
 
 	for _, membership := range memberships {
+		verReq := api.QueryRoomVersionForRoomRequest{RoomID: membership.RoomID}
+		verRes := api.QueryRoomVersionForRoomResponse{}
+		if err := queryAPI.QueryRoomVersionForRoom(ctx, &verReq, &verRes); err != nil {
+			return []gomatrixserverlib.HeaderedEvent{}, err
+		}
+
 		builder := gomatrixserverlib.EventBuilder{
 			Sender:   userID,
 			RoomID:   membership.RoomID,
@@ -365,7 +371,7 @@ func buildMembershipEvents(
 			return nil, err
 		}
 
-		evs = append(evs, *event)
+		evs = append(evs, (*event).Headered(verRes.RoomVersion))
 	}
 
 	return evs, nil

clientapi/routing/sendevent.go

@@ -27,6 +27,7 @@ import (
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
+	"github.com/sirupsen/logrus"
 )
 
 // http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
@@ -48,6 +49,15 @@ func SendEvent(
 	producer *producers.RoomserverProducer,
 	txnCache *transactions.Cache,
 ) util.JSONResponse {
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	if err := queryAPI.QueryRoomVersionForRoom(req.Context(), &verReq, &verRes); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.UnsupportedRoomVersion(err.Error()),
+		}
+	}
+
 	if txnID != nil {
 		// Try to fetch response from transactionsCache
 		if res, ok := txnCache.FetchTransaction(device.AccessToken, *txnID); ok {
@@ -71,13 +81,22 @@ func SendEvent(
 	// pass the new event to the roomserver and receive the correct event ID
 	// event ID in case of duplicate transaction is discarded
 	eventID, err := producer.SendEvents(
-		req.Context(), []gomatrixserverlib.Event{*e}, cfg.Matrix.ServerName, txnAndSessionID,
+		req.Context(),
+		[]gomatrixserverlib.HeaderedEvent{
+			e.Headered(verRes.RoomVersion),
+		},
+		cfg.Matrix.ServerName,
+		txnAndSessionID,
 	)
 	if err != nil {
 		util.GetLogger(req.Context()).WithError(err).Error("producer.SendEvents failed")
 		return jsonerror.InternalServerError()
 	}
-	util.GetLogger(req.Context()).WithField("event_id", eventID).Info("Sent event")
+	util.GetLogger(req.Context()).WithFields(logrus.Fields{
+		"event_id":     eventID,
+		"room_id":      roomID,
+		"room_version": verRes.RoomVersion,
+	}).Info("Sent event to roomserver")
 
 	res := util.JSONResponse{
 		Code: http.StatusOK,

clientapi/threepid/invites.go

@@ -353,12 +353,19 @@ func emit3PIDInviteEvent(
 		return err
 	}
 
-	var queryRes *api.QueryLatestEventsAndStateResponse
+	queryRes := api.QueryLatestEventsAndStateResponse{}
-	event, err := common.BuildEvent(ctx, builder, cfg, evTime, queryAPI, queryRes)
+	event, err := common.BuildEvent(ctx, builder, cfg, evTime, queryAPI, &queryRes)
 	if err != nil {
 		return err
 	}
 
-	_, err = producer.SendEvents(ctx, []gomatrixserverlib.Event{*event}, cfg.Matrix.ServerName, nil)
+	_, err = producer.SendEvents(
+		ctx,
+		[]gomatrixserverlib.HeaderedEvent{
+			(*event).Headered(queryRes.RoomVersion),
+		},
+		cfg.Matrix.ServerName,
+		nil,
+	)
 	return err
 }

cmd/create-room-events/main.go

@@ -103,12 +103,14 @@ func main() {
 // Build an event and write the event to the output.
 func buildAndOutput() gomatrixserverlib.EventReference {
 	eventID++
-	id := fmt.Sprintf("$%d:%s", eventID, *serverName)
 	now = time.Unix(0, 0)
 	name := gomatrixserverlib.ServerName(*serverName)
 	key := gomatrixserverlib.KeyID(*keyID)
 
-	event, err := b.Build(id, now, name, key, privateKey)
+	event, err := b.Build(
+		now, name, key, privateKey,
+		gomatrixserverlib.RoomVersionV1,
+	)
 	if err != nil {
 		panic(err)
 	}
@@ -127,7 +129,7 @@ func writeEvent(event gomatrixserverlib.Event) {
 		ire.Kind = api.KindNew
 		ire.Event = event.Headered(gomatrixserverlib.RoomVersionV1)
 		authEventIDs := []string{}
-		for _, ref := range b.AuthEvents {
+		for _, ref := range b.AuthEvents.([]gomatrixserverlib.EventReference) {
 			authEventIDs = append(authEventIDs, ref.EventID)
 		}
 		ire.AuthEventIDs = authEventIDs

common/events.go

@@ -17,14 +17,12 @@ package common
 import (
 	"context"
 	"errors"
-	"fmt"
 	"time"
 
 	"github.com/matrix-org/dendrite/common/config"
 	"github.com/matrix-org/dendrite/roomserver/api"
 
 	"github.com/matrix-org/gomatrixserverlib"
-	"github.com/matrix-org/util"
 )
 
 // ErrRoomNoExists is returned when trying to lookup the state of a room that
@@ -42,13 +40,19 @@ func BuildEvent(
 	builder *gomatrixserverlib.EventBuilder, cfg *config.Dendrite, evTime time.Time,
 	queryAPI api.RoomserverQueryAPI, queryRes *api.QueryLatestEventsAndStateResponse,
 ) (*gomatrixserverlib.Event, error) {
+	if queryRes == nil {
+		queryRes = &api.QueryLatestEventsAndStateResponse{}
+	}
+
 	err := AddPrevEventsToEvent(ctx, builder, queryAPI, queryRes)
 	if err != nil {
 		return nil, err
 	}
 
-	eventID := fmt.Sprintf("$%s:%s", util.RandomString(16), cfg.Matrix.ServerName)
+	event, err := builder.Build(
-	event, err := builder.Build(eventID, evTime, cfg.Matrix.ServerName, cfg.Matrix.KeyID, cfg.Matrix.PrivateKey)
+		evTime, cfg.Matrix.ServerName, cfg.Matrix.KeyID,
+		cfg.Matrix.PrivateKey, queryRes.RoomVersion,
+	)
 	if err != nil {
 		return nil, err
 	}
@@ -72,9 +76,6 @@ func AddPrevEventsToEvent(
 		RoomID:       builder.RoomID,
 		StateToFetch: eventsNeeded.Tuples(),
 	}
-	if queryRes == nil {
-		queryRes = &api.QueryLatestEventsAndStateResponse{}
-	}
 	if err = queryAPI.QueryLatestEventsAndState(ctx, &queryReq, queryRes); err != nil {
 		return err
 	}
@@ -83,8 +84,12 @@ func AddPrevEventsToEvent(
 		return ErrRoomNoExists
 	}
 
+	eventFormat, err := queryRes.RoomVersion.EventFormat()
+	if err != nil {
+		return err
+	}
+
 	builder.Depth = queryRes.Depth
-	builder.PrevEvents = queryRes.LatestEvents
 
 	authEvents := gomatrixserverlib.NewAuthEvents(nil)
 
@@ -99,7 +104,23 @@ func AddPrevEventsToEvent(
 	if err != nil {
 		return err
 	}
+
+	switch eventFormat {
+	case gomatrixserverlib.EventFormatV1:
 		builder.AuthEvents = refs
+		builder.PrevEvents = queryRes.LatestEvents
+	case gomatrixserverlib.EventFormatV2:
+		v2AuthRefs := []string{}
+		v2PrevRefs := []string{}
+		for _, ref := range refs {
+			v2AuthRefs = append(v2AuthRefs, ref.EventID)
+		}
+		for _, ref := range queryRes.LatestEvents {
+			v2PrevRefs = append(v2PrevRefs, ref.EventID)
+		}
+		builder.AuthEvents = v2AuthRefs
+		builder.PrevEvents = v2PrevRefs
+	}
 
 	return nil
 }

federationapi/federationapi.go

@@ -42,7 +42,7 @@ func SetupFederationAPIComponent(
 	asAPI appserviceAPI.AppServiceQueryAPI,
 	federationSenderAPI federationSenderAPI.FederationSenderQueryAPI,
 ) {
-	roomserverProducer := producers.NewRoomserverProducer(inputAPI)
+	roomserverProducer := producers.NewRoomserverProducer(inputAPI, queryAPI)
 
 	routing.Setup(
 		base.APIMux, base.Cfg, queryAPI, aliasAPI, asAPI,

federationapi/routing/backfill.go

@@ -15,6 +15,7 @@
 package routing
 
 import (
+	"encoding/json"
 	"net/http"
 	"strconv"
 	"time"
@@ -91,9 +92,14 @@ func Backfill(
 		}
 	}
 
+	var eventJSONs []json.RawMessage
+	for _, e := range evs {
+		eventJSONs = append(eventJSONs, e.JSON())
+	}
+
 	txn := gomatrixserverlib.Transaction{
 		Origin:         cfg.Matrix.ServerName,
-		PDUs:           evs,
+		PDUs:           eventJSONs,
 		OriginServerTS: gomatrixserverlib.AsTimestamp(time.Now()),
 	}
 

federationapi/routing/invite.go

@@ -15,12 +15,13 @@
 package routing
 
 import (
-	"encoding/json"
+	"context"
 	"net/http"
 
 	"github.com/matrix-org/dendrite/clientapi/jsonerror"
 	"github.com/matrix-org/dendrite/clientapi/producers"
 	"github.com/matrix-org/dendrite/common/config"
+	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
 )
@@ -35,10 +36,19 @@ func Invite(
 	producer *producers.RoomserverProducer,
 	keys gomatrixserverlib.KeyRing,
 ) util.JSONResponse {
+	// Look up the room version for the room.
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	if err := producer.QueryAPI.QueryRoomVersionForRoom(context.Background(), &verReq, &verRes); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.UnsupportedRoomVersion(err.Error()),
+		}
+	}
 
 	// Decode the event JSON from the request.
-	var event gomatrixserverlib.Event
+	event, err := gomatrixserverlib.NewEventFromUntrustedJSON(request.Content(), verRes.RoomVersion)
-	if err := json.Unmarshal(request.Content(), &event); err != nil {
+	if err != nil {
 		return util.JSONResponse{
 			Code: http.StatusBadRequest,
 			JSON: jsonerror.NotJSON("The request body could not be decoded into valid JSON. " + err.Error()),
@@ -70,9 +80,10 @@ func Invite(
 	}
 
 	// Check that the event is signed by the server sending the request.
+	redacted := event.Redact()
 	verifyRequests := []gomatrixserverlib.VerifyJSONRequest{{
 		ServerName: event.Origin(),
-		Message:    event.Redact().JSON(),
+		Message:    redacted.JSON(),
 		AtTS:       event.OriginServerTS(),
 	}}
 	verifyResults, err := keys.VerifyJSONs(httpReq.Context(), verifyRequests)

federationapi/routing/join.go

@@ -15,7 +15,6 @@
 package routing
 
 import (
-	"encoding/json"
 	"net/http"
 	"time"
 
@@ -36,6 +35,15 @@ func MakeJoin(
 	query api.RoomserverQueryAPI,
 	roomID, userID string,
 ) util.JSONResponse {
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	if err := query.QueryRoomVersionForRoom(httpReq.Context(), &verReq, &verRes); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: jsonerror.InternalServerError(),
+		}
+	}
+
 	_, domain, err := gomatrixserverlib.SplitID('@', userID)
 	if err != nil {
 		return util.JSONResponse{
@@ -63,7 +71,9 @@ func MakeJoin(
 		return jsonerror.InternalServerError()
 	}
 
-	var queryRes api.QueryLatestEventsAndStateResponse
+	queryRes := api.QueryLatestEventsAndStateResponse{
+		RoomVersion: verRes.RoomVersion,
+	}
 	event, err := common.BuildEvent(httpReq.Context(), &builder, cfg, time.Now(), query, &queryRes)
 	if err == common.ErrRoomNoExists {
 		return util.JSONResponse{
@@ -80,6 +90,7 @@ func MakeJoin(
 	for i := range queryRes.StateEvents {
 		stateEvents[i] = &queryRes.StateEvents[i].Event
 	}
+
 	provider := gomatrixserverlib.NewAuthEvents(stateEvents)
 	if err = gomatrixserverlib.Allowed(*event, &provider); err != nil {
 		return util.JSONResponse{
@@ -90,7 +101,10 @@ func MakeJoin(
 
 	return util.JSONResponse{
 		Code: http.StatusOK,
-		JSON: map[string]interface{}{"event": builder},
+		JSON: map[string]interface{}{
+			"event":        builder,
+			"room_version": verRes.RoomVersion,
+		},
 	}
 }
 
@@ -104,8 +118,18 @@ func SendJoin(
 	keys gomatrixserverlib.KeyRing,
 	roomID, eventID string,
 ) util.JSONResponse {
-	var event gomatrixserverlib.Event
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
-	if err := json.Unmarshal(request.Content(), &event); err != nil {
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	if err := query.QueryRoomVersionForRoom(httpReq.Context(), &verReq, &verRes); err != nil {
+		util.GetLogger(httpReq.Context()).WithError(err).Error("query.QueryRoomVersionForRoom failed")
+		return util.JSONResponse{
+			Code: http.StatusInternalServerError,
+			JSON: jsonerror.InternalServerError(),
+		}
+	}
+
+	event, err := gomatrixserverlib.NewEventFromUntrustedJSON(request.Content(), verRes.RoomVersion)
+	if err != nil {
 		return util.JSONResponse{
 			Code: http.StatusBadRequest,
 			JSON: jsonerror.NotJSON("The request body could not be decoded into valid JSON. " + err.Error()),
@@ -137,9 +161,10 @@ func SendJoin(
 	}
 
 	// Check that the event is signed by the server sending the request.
+	redacted := event.Redact()
 	verifyRequests := []gomatrixserverlib.VerifyJSONRequest{{
 		ServerName: event.Origin(),
-		Message:    event.Redact().JSON(),
+		Message:    redacted.JSON(),
 		AtTS:       event.OriginServerTS(),
 	}}
 	verifyResults, err := keys.VerifyJSONs(httpReq.Context(), verifyRequests)
@@ -150,7 +175,7 @@ func SendJoin(
 	if verifyResults[0].Error != nil {
 		return util.JSONResponse{
 			Code: http.StatusForbidden,
-			JSON: jsonerror.Forbidden("The join must be signed by the server it originated on"),
+			JSON: jsonerror.Forbidden("Signature check failed: " + verifyResults[0].Error.Error()),
 		}
 	}
 
@@ -178,7 +203,12 @@ func SendJoin(
 	// We are responsible for notifying other servers that the user has joined
 	// the room, so set SendAsServer to cfg.Matrix.ServerName
 	_, err = producer.SendEvents(
-		httpReq.Context(), []gomatrixserverlib.Event{event}, cfg.Matrix.ServerName, nil,
+		httpReq.Context(),
+		[]gomatrixserverlib.HeaderedEvent{
+			event.Headered(stateAndAuthChainResponse.RoomVersion),
+		},
+		cfg.Matrix.ServerName,
+		nil,
 	)
 	if err != nil {
 		util.GetLogger(httpReq.Context()).WithError(err).Error("producer.SendEvents failed")
@@ -188,8 +218,8 @@ func SendJoin(
 	return util.JSONResponse{
 		Code: http.StatusOK,
 		JSON: map[string]interface{}{
-			"state":      stateAndAuthChainResponse.StateEvents,
+			"state":      gomatrixserverlib.UnwrapEventHeaders(stateAndAuthChainResponse.StateEvents),
-			"auth_chain": stateAndAuthChainResponse.AuthChainEvents,
+			"auth_chain": gomatrixserverlib.UnwrapEventHeaders(stateAndAuthChainResponse.AuthChainEvents),
 		},
 	}
 }

federationapi/routing/leave.go

@@ -13,7 +13,6 @@
 package routing
 
 import (
-	"encoding/json"
 	"net/http"
 	"time"
 
@@ -101,8 +100,18 @@ func SendLeave(
 	keys gomatrixserverlib.KeyRing,
 	roomID, eventID string,
 ) util.JSONResponse {
-	var event gomatrixserverlib.Event
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
-	if err := json.Unmarshal(request.Content(), &event); err != nil {
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	if err := producer.QueryAPI.QueryRoomVersionForRoom(httpReq.Context(), &verReq, &verRes); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.UnsupportedRoomVersion(err.Error()),
+		}
+	}
+
+	// Decode the event JSON from the request.
+	event, err := gomatrixserverlib.NewEventFromUntrustedJSON(request.Content(), verRes.RoomVersion)
+	if err != nil {
 		return util.JSONResponse{
 			Code: http.StatusBadRequest,
 			JSON: jsonerror.NotJSON("The request body could not be decoded into valid JSON. " + err.Error()),
@@ -134,9 +143,10 @@ func SendLeave(
 	}
 
 	// Check that the event is signed by the server sending the request.
+	redacted := event.Redact()
 	verifyRequests := []gomatrixserverlib.VerifyJSONRequest{{
 		ServerName: event.Origin(),
-		Message:    event.Redact().JSON(),
+		Message:    redacted.JSON(),
 		AtTS:       event.OriginServerTS(),
 	}}
 	verifyResults, err := keys.VerifyJSONs(httpReq.Context(), verifyRequests)
@@ -166,7 +176,14 @@ func SendLeave(
 	// Send the events to the room server.
 	// We are responsible for notifying other servers that the user has left
 	// the room, so set SendAsServer to cfg.Matrix.ServerName
-	_, err = producer.SendEvents(httpReq.Context(), []gomatrixserverlib.Event{event}, cfg.Matrix.ServerName, nil)
+	_, err = producer.SendEvents(
+		httpReq.Context(),
+		[]gomatrixserverlib.HeaderedEvent{
+			event.Headered(verRes.RoomVersion),
+		},
+		cfg.Matrix.ServerName,
+		nil,
+	)
 	if err != nil {
 		util.GetLogger(httpReq.Context()).WithError(err).Error("producer.SendEvents failed")
 		return jsonerror.InternalServerError()

federationapi/routing/send.go

@@ -39,7 +39,6 @@ func Send(
 	keys gomatrixserverlib.KeyRing,
 	federation *gomatrixserverlib.FederationClient,
 ) util.JSONResponse {
-
 	t := txnReq{
 		context:    httpReq.Context(),
 		query:      query,
@@ -47,17 +46,26 @@ func Send(
 		keys:       keys,
 		federation: federation,
 	}
-	if err := json.Unmarshal(request.Content(), &t); err != nil {
+
+	var txnEvents struct {
+		PDUs []json.RawMessage `json:"pdus"`
+		EDUs []json.RawMessage `json:"edus"`
+	}
+
+	if err := json.Unmarshal(request.Content(), &txnEvents); err != nil {
 		return util.JSONResponse{
 			Code: http.StatusBadRequest,
 			JSON: jsonerror.NotJSON("The request body could not be decoded into valid JSON. " + err.Error()),
 		}
 	}
 
+	t.PDUs = txnEvents.PDUs
 	t.Origin = request.Origin()
 	t.TransactionID = txnID
 	t.Destination = cfg.Matrix.ServerName
 
+	util.GetLogger(httpReq.Context()).Infof("Received transaction %q containing %d PDUs, %d EDUs", txnID, len(t.PDUs), len(t.EDUs))
+
 	resp, err := t.processTransaction()
 	if err != nil {
 		util.GetLogger(httpReq.Context()).WithError(err).Error("t.processTransaction failed")
@@ -80,15 +88,37 @@ type txnReq struct {
 }
 
 func (t *txnReq) processTransaction() (*gomatrixserverlib.RespSend, error) {
-	// Check the event signatures
+	var pdus []gomatrixserverlib.HeaderedEvent
-	if err := gomatrixserverlib.VerifyAllEventSignatures(t.context, t.PDUs, t.keys); err != nil {
+	for _, pdu := range t.PDUs {
+		var header struct {
+			RoomID string `json:"room_id"`
+		}
+		if err := json.Unmarshal(pdu, &header); err != nil {
+			util.GetLogger(t.context).WithError(err).Warn("Transaction: Failed to extract room ID from event")
 			return nil, err
 		}
+		verReq := api.QueryRoomVersionForRoomRequest{RoomID: header.RoomID}
+		verRes := api.QueryRoomVersionForRoomResponse{}
+		if err := t.query.QueryRoomVersionForRoom(t.context, &verReq, &verRes); err != nil {
+			util.GetLogger(t.context).WithError(err).Warn("Transaction: Failed to query room version for room", verReq.RoomID)
+			return nil, err
+		}
+		event, err := gomatrixserverlib.NewEventFromUntrustedJSON(pdu, verRes.RoomVersion)
+		if err != nil {
+			util.GetLogger(t.context).WithError(err).Warnf("Transaction: Failed to parse event JSON of event %q", event.EventID())
+			return nil, err
+		}
+		if err := gomatrixserverlib.VerifyAllEventSignatures(t.context, []gomatrixserverlib.Event{event}, t.keys); err != nil {
+			util.GetLogger(t.context).WithError(err).Warnf("Transaction: Couldn't validate signature of event %q", event.EventID())
+			return nil, err
+		}
+		pdus = append(pdus, event.Headered(verRes.RoomVersion))
+	}
 
 	// Process the events.
 	results := map[string]gomatrixserverlib.PDUResult{}
-	for _, e := range t.PDUs {
+	for _, e := range pdus {
-		err := t.processEvent(e)
+		err := t.processEvent(e.Unwrap())
 		if err != nil {
 			// If the error is due to the event itself being bad then we skip
 			// it and move onto the next event. We report an error so that the
@@ -123,7 +153,7 @@ func (t *txnReq) processTransaction() (*gomatrixserverlib.RespSend, error) {
 	}
 
 	// TODO: Process the EDUs.
-
+	util.GetLogger(t.context).Infof("Processed %d PDUs from transaction %q", len(results), t.TransactionID)
 	return &gomatrixserverlib.RespSend{PDUs: results}, nil
 }
 
@@ -159,13 +189,13 @@ func (t *txnReq) processEvent(e gomatrixserverlib.Event) error {
 	}
 
 	if !stateResp.PrevEventsExist {
-		return t.processEventWithMissingState(e)
+		return t.processEventWithMissingState(e, stateResp.RoomVersion)
 	}
 
 	// Check that the event is allowed by the state at the event.
 	var events []gomatrixserverlib.Event
 	for _, headeredEvent := range stateResp.StateEvents {
-		events = append(events, headeredEvent.Event)
+		events = append(events, headeredEvent.Unwrap())
 	}
 	if err := checkAllowedByState(e, events); err != nil {
 		return err
@@ -175,7 +205,14 @@ func (t *txnReq) processEvent(e gomatrixserverlib.Event) error {
 	// TODO: Check that the event is allowed by its auth_events.
 
 	// pass the event to the roomserver
-	_, err := t.producer.SendEvents(t.context, []gomatrixserverlib.Event{e}, api.DoNotSendToOtherServers, nil)
+	_, err := t.producer.SendEvents(
+		t.context,
+		[]gomatrixserverlib.HeaderedEvent{
+			e.Headered(stateResp.RoomVersion),
+		},
+		api.DoNotSendToOtherServers,
+		nil,
+	)
 	return err
 }
 
@@ -190,7 +227,7 @@ func checkAllowedByState(e gomatrixserverlib.Event, stateEvents []gomatrixserver
 	return gomatrixserverlib.Allowed(e, &authUsingState)
 }
 
-func (t *txnReq) processEventWithMissingState(e gomatrixserverlib.Event) error {
+func (t *txnReq) processEventWithMissingState(e gomatrixserverlib.Event, roomVersion gomatrixserverlib.RoomVersion) error {
 	// We are missing the previous events for this events.
 	// This means that there is a gap in our view of the history of the
 	// room. There two ways that we can handle such a gap:
@@ -207,7 +244,7 @@ func (t *txnReq) processEventWithMissingState(e gomatrixserverlib.Event) error {
 	// need to fallback to /state.
 	// TODO: Attempt to fill in the gap using /get_missing_events
 	// TODO: Attempt to fetch the state using /state_ids and /events
-	state, err := t.federation.LookupState(t.context, t.Origin, e.RoomID(), e.EventID())
+	state, err := t.federation.LookupState(t.context, t.Origin, e.RoomID(), e.EventID(), roomVersion)
 	if err != nil {
 		return err
 	}
@@ -225,7 +262,7 @@ retryAllowedState:
 				if s.EventID() != missing.AuthEventID {
 					continue
 				}
-				err = t.processEventWithMissingState(s)
+				err = t.processEventWithMissingState(s, roomVersion)
 				// If there was no error retrieving the event from federation then
 				// we assume that it succeeded, so retry the original state check
 				if err == nil {
@@ -236,6 +273,7 @@ retryAllowedState:
 		}
 		return err
 	}
+
 	// pass the event along with the state to the roomserver
-	return t.producer.SendEventWithState(t.context, state, e)
+	return t.producer.SendEventWithState(t.context, state, e.Headered(roomVersion))
 }

federationapi/routing/state.go

@@ -129,17 +129,9 @@ func getState(
 		return nil, &util.JSONResponse{Code: http.StatusNotFound, JSON: nil}
 	}
 
-	var stateEvents, authEvents []gomatrixserverlib.Event
-	for _, headeredEvent := range response.StateEvents {
-		stateEvents = append(stateEvents, headeredEvent.Event)
-	}
-	for _, headeredEvent := range response.AuthChainEvents {
-		authEvents = append(authEvents, headeredEvent.Event)
-	}
-
 	return &gomatrixserverlib.RespState{
-		StateEvents: stateEvents,
+		StateEvents: gomatrixserverlib.UnwrapEventHeaders(response.StateEvents),
-		AuthEvents:  authEvents,
+		AuthEvents:  gomatrixserverlib.UnwrapEventHeaders(response.AuthChainEvents),
 	}, nil
 }
 

federationapi/routing/threepid.go

@@ -18,7 +18,6 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
-	"fmt"
 	"net/http"
 	"time"
 
@@ -28,6 +27,7 @@ import (
 	"github.com/matrix-org/dendrite/clientapi/jsonerror"
 	"github.com/matrix-org/dendrite/clientapi/producers"
 	"github.com/matrix-org/dendrite/common/config"
+	"github.com/matrix-org/dendrite/roomserver/api"
 	roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
 
 	"github.com/matrix-org/gomatrixserverlib"
@@ -68,8 +68,17 @@ func CreateInvitesFrom3PIDInvites(
 		return *reqErr
 	}
 
-	evs := []gomatrixserverlib.Event{}
+	evs := []gomatrixserverlib.HeaderedEvent{}
 	for _, inv := range body.Invites {
+		verReq := api.QueryRoomVersionForRoomRequest{RoomID: inv.RoomID}
+		verRes := api.QueryRoomVersionForRoomResponse{}
+		if err := queryAPI.QueryRoomVersionForRoom(req.Context(), &verReq, &verRes); err != nil {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: jsonerror.UnsupportedRoomVersion(err.Error()),
+			}
+		}
+
 		event, err := createInviteFrom3PIDInvite(
 			req.Context(), queryAPI, asAPI, cfg, inv, federation, accountDB,
 		)
@@ -78,7 +87,7 @@ func CreateInvitesFrom3PIDInvites(
 			return jsonerror.InternalServerError()
 		}
 		if event != nil {
-			evs = append(evs, *event)
+			evs = append(evs, (*event).Headered(verRes.RoomVersion))
 		}
 	}
 
@@ -137,6 +146,15 @@ func ExchangeThirdPartyInvite(
 		}
 	}
 
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	if err = queryAPI.QueryRoomVersionForRoom(httpReq.Context(), &verReq, &verRes); err != nil {
+		return util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.UnsupportedRoomVersion(err.Error()),
+		}
+	}
+
 	// Auth and build the event from what the remote server sent us
 	event, err := buildMembershipEvent(httpReq.Context(), &builder, queryAPI, cfg)
 	if err == errNotInRoom {
@@ -159,7 +177,12 @@ func ExchangeThirdPartyInvite(
 
 	// Send the event to the roomserver
 	if _, err = producer.SendEvents(
-		httpReq.Context(), []gomatrixserverlib.Event{signedEvent.Event}, cfg.Matrix.ServerName, nil,
+		httpReq.Context(),
+		[]gomatrixserverlib.HeaderedEvent{
+			signedEvent.Event.Headered(verRes.RoomVersion),
+		},
+		cfg.Matrix.ServerName,
+		nil,
 	); err != nil {
 		util.GetLogger(httpReq.Context()).WithError(err).Error("producer.SendEvents failed")
 		return jsonerror.InternalServerError()
@@ -181,6 +204,12 @@ func createInviteFrom3PIDInvite(
 	inv invite, federation *gomatrixserverlib.FederationClient,
 	accountDB accounts.Database,
 ) (*gomatrixserverlib.Event, error) {
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: inv.RoomID}
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	if err := queryAPI.QueryRoomVersionForRoom(ctx, &verReq, &verRes); err != nil {
+		return nil, err
+	}
+
 	_, server, err := gomatrixserverlib.SplitID('@', inv.MXID)
 	if err != nil {
 		return nil, err
@@ -280,9 +309,9 @@ func buildMembershipEvent(
 	}
 	builder.AuthEvents = refs
 
-	eventID := fmt.Sprintf("$%s:%s", util.RandomString(16), cfg.Matrix.ServerName)
 	event, err := builder.Build(
-		eventID, time.Now(), cfg.Matrix.ServerName, cfg.Matrix.KeyID, cfg.Matrix.PrivateKey,
+		time.Now(), cfg.Matrix.ServerName, cfg.Matrix.KeyID,
+		cfg.Matrix.PrivateKey, queryRes.RoomVersion,
 	)
 
 	return &event, err

federationsender/consumers/roomserver.go

@@ -155,7 +155,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent) err
 
 	// Send the event.
 	return s.queues.SendEvent(
-		&ore.Event.Event, gomatrixserverlib.ServerName(ore.SendAsServer), joinedHostsAtEvent,
+		&ore.Event, gomatrixserverlib.ServerName(ore.SendAsServer), joinedHostsAtEvent,
 	)
 }
 

federationsender/queue/destinationqueue.go

@@ -16,11 +16,13 @@ package queue
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"sync"
 	"time"
 
 	"github.com/matrix-org/gomatrixserverlib"
+	"github.com/matrix-org/util"
 	log "github.com/sirupsen/logrus"
 )
 
@@ -38,14 +40,14 @@ type destinationQueue struct {
 	running            bool
 	sentCounter        int
 	lastTransactionIDs []gomatrixserverlib.TransactionID
-	pendingEvents      []*gomatrixserverlib.Event
+	pendingEvents      []*gomatrixserverlib.HeaderedEvent
 	pendingEDUs        []*gomatrixserverlib.EDU
 }
 
 // Send event adds the event to the pending queue for the destination.
 // If the queue is empty then it starts a background goroutine to
 // start sending events to that destination.
-func (oq *destinationQueue) sendEvent(ev *gomatrixserverlib.Event) {
+func (oq *destinationQueue) sendEvent(ev *gomatrixserverlib.HeaderedEvent) {
 	oq.runningMutex.Lock()
 	defer oq.runningMutex.Unlock()
 	oq.pendingEvents = append(oq.pendingEvents, ev)
@@ -80,6 +82,8 @@ func (oq *destinationQueue) backgroundSend() {
 		// TODO: handle retries.
 		// TODO: blacklist uncooperative servers.
 
+		util.GetLogger(context.TODO()).Infof("Sending transaction %q containing %d PDUs, %d EDUs", t.TransactionID, len(t.PDUs), len(t.EDUs))
+
 		_, err := oq.client.SendTransaction(context.TODO(), *t)
 		if err != nil {
 			log.WithFields(log.Fields{
@@ -103,7 +107,7 @@ func (oq *destinationQueue) next() *gomatrixserverlib.Transaction {
 	}
 
 	t := gomatrixserverlib.Transaction{
-		PDUs: []gomatrixserverlib.Event{},
+		PDUs: []json.RawMessage{},
 		EDUs: []gomatrixserverlib.EDU{},
 	}
 	now := gomatrixserverlib.AsTimestamp(time.Now())
@@ -119,7 +123,9 @@ func (oq *destinationQueue) next() *gomatrixserverlib.Transaction {
 	oq.lastTransactionIDs = []gomatrixserverlib.TransactionID{t.TransactionID}
 
 	for _, pdu := range oq.pendingEvents {
-		t.PDUs = append(t.PDUs, *pdu)
+		// Append the JSON of the event, since this is a json.RawMessage type in the
+		// gomatrixserverlib.Transaction struct
+		t.PDUs = append(t.PDUs, (*pdu).JSON())
 	}
 	oq.pendingEvents = nil
 	oq.sentCounter += len(t.PDUs)

federationsender/queue/queue.go

@@ -43,7 +43,7 @@ func NewOutgoingQueues(origin gomatrixserverlib.ServerName, client *gomatrixserv
 
 // SendEvent sends an event to the destinations
 func (oqs *OutgoingQueues) SendEvent(
-	ev *gomatrixserverlib.Event, origin gomatrixserverlib.ServerName,
+	ev *gomatrixserverlib.HeaderedEvent, origin gomatrixserverlib.ServerName,
 	destinations []gomatrixserverlib.ServerName,
 ) error {
 	if origin != oqs.origin {

go.mod

@@ -1,8 +1,6 @@
 module github.com/matrix-org/dendrite
 
 require (
-	github.com/btcsuite/btcutil v1.0.1
-	github.com/golangci/golangci-lint v1.19.1 // indirect
 	github.com/gorilla/mux v1.7.3
 	github.com/hashicorp/golang-lru v0.5.4
 	github.com/lib/pq v1.2.0
@@ -11,7 +9,7 @@ require (
 	github.com/matrix-org/go-http-js-libp2p v0.0.0-20200318135427-31631a9ef51f
 	github.com/matrix-org/go-sqlite3-js v0.0.0-20200304164012-aa524245b658
 	github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26
-	github.com/matrix-org/gomatrixserverlib v0.0.0-20200318180716-bc4ff56961e2
+	github.com/matrix-org/gomatrixserverlib v0.0.0-20200327155501-33fb4c7049dc
 	github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1
 	github.com/matrix-org/util v0.0.0-20190711121626-527ce5ddefc7
 	github.com/mattn/go-sqlite3 v2.0.2+incompatible
@@ -27,6 +25,7 @@ require (
 	github.com/uber/jaeger-lib v2.2.0+incompatible
 	go.uber.org/atomic v1.6.0 // indirect
 	golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d
+	golang.org/x/net v0.0.0-20190909003024-a7b16738d86b // indirect
 	gopkg.in/Shopify/sarama.v1 v1.20.1
 	gopkg.in/h2non/bimg.v1 v1.0.18
 	gopkg.in/yaml.v2 v2.2.5

go.sum

@@ -3,18 +3,13 @@ github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/DataDog/zstd v1.4.4 h1:+IawcoXhCBylN7ccwdwf8LOH2jKq7NavGpEPanrlTzE=
 github.com/DataDog/zstd v1.4.4/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo=
-github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/OpenPeeDeeP/depguard v1.0.1 h1:VlW4R6jmBIv3/u1JNlawEvJMM4J+dPORPaZasQee8Us=
-github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
 github.com/Shopify/toxiproxy v2.1.4+incompatible h1:TKdv8HiTLgE5wdJuEML90aBgNWsokNbMijUGhmcoBJc=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
@@ -30,82 +25,38 @@ github.com/btcsuite/goleveldb v0.0.0-20160330041536-7834afc9e8cd/go.mod h1:F+uVa
 github.com/btcsuite/snappy-go v0.0.0-20151229074030-0bdef8d06723/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc=
 github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792/go.mod h1:ghJtEyQwv5/p4Mg4C0fgbePVuGr935/5ddU9Z3TmDRY=
 github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46fmI40EZs=
-github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
-github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.0/go.mod h1:dgIUBU3pDso/gPgZ1osOZ0iQf77oPR28Tjxl5dIMyVM=
 github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd h1:qMd81Ts1T2OTKmB4acZcyKaMtRnY5Y44NuXGX2GFJ1w=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
-github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
-github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
-github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
-github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
-github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
-github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
-github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/eapache/go-resiliency v1.2.0 h1:v7g92e/KSN71Rq7vSThKaWIq68fL4YHvWyiUKorFR1Q=
 github.com/eapache/go-resiliency v1.2.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
 github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21 h1:YEetp8/yCZMuEPMUDHG0CW/brkkEp8mzqk2+ODEitlw=
 github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
 github.com/eapache/queue v1.1.0 h1:YOEu7KNc61ntiQlcEeUIoDTJ2o8mQznoNvUhiigpIqc=
 github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I=
-github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
-github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/frankban/quicktest v1.0.0/go.mod h1:R98jIehRai+d1/3Hv2//jOVCTJhW1VBavT6B6CuGq2k=
 github.com/frankban/quicktest v1.7.2 h1:2QxQoC1TS09S7fhCPsrvqYdvP1H5M1P1ih5ABm3BTYk=
 github.com/frankban/quicktest v1.7.2/go.mod h1:jaStnuzAqU1AJdCO0l53JDCJrVDKcS03DbaAcR7Ks/o=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
-github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-critic/go-critic v0.3.5-0.20190904082202-d79a9f0c64db h1:GYXWx7Vr3+zv833u+8IoXbNnQY0AdXsxAgI0kX7xcwA=
-github.com/go-critic/go-critic v0.3.5-0.20190904082202-d79a9f0c64db/go.mod h1:+sE8vrLDS2M0pZkBk0wy6+nLdKexVDrl/jBqQOTDThA=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
-github.com/go-lintpack/lintpack v0.5.2 h1:DI5mA3+eKdWeJ40nU4d6Wc26qmdG8RCi/btYq0TuRN0=
-github.com/go-lintpack/lintpack v0.5.2/go.mod h1:NwZuYi2nUHho8XEIZ6SIxihrnPoqBTDqfpXvXAN0sXM=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
-github.com/go-ole/go-ole v1.2.1/go.mod h1:7FAglXiTm7HKlQRDeOQ6ZNUHidzCWXuZWq/1dTyBNF8=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
-github.com/go-toolsmith/astcast v1.0.0 h1:JojxlmI6STnFVG9yOImLeGREv8W2ocNUM+iOhR6jE7g=
-github.com/go-toolsmith/astcast v1.0.0/go.mod h1:mt2OdQTeAQcY4DQgPSArJjHCcOwlX+Wl/kwN+LbLGQ4=
-github.com/go-toolsmith/astcopy v1.0.0 h1:OMgl1b1MEpjFQ1m5ztEO06rz5CUd3oBv9RF7+DyvdG8=
-github.com/go-toolsmith/astcopy v1.0.0/go.mod h1:vrgyG+5Bxrnz4MZWPF+pI4R8h3qKRjjyvV/DSez4WVQ=
-github.com/go-toolsmith/astequal v0.0.0-20180903214952-dcb477bfacd6/go.mod h1:H+xSiq0+LtiDC11+h1G32h7Of5O3CYFJ99GVbS5lDKY=
-github.com/go-toolsmith/astequal v1.0.0 h1:4zxD8j3JRFNyLN46lodQuqz3xdKSrur7U/sr0SDS/gQ=
-github.com/go-toolsmith/astequal v1.0.0/go.mod h1:H+xSiq0+LtiDC11+h1G32h7Of5O3CYFJ99GVbS5lDKY=
-github.com/go-toolsmith/astfmt v0.0.0-20180903215011-8f8ee99c3086/go.mod h1:mP93XdblcopXwlyN4X4uodxXQhldPGZbcEJIimQHrkg=
-github.com/go-toolsmith/astfmt v1.0.0 h1:A0vDDXt+vsvLEdbMFJAUBI/uTbRw1ffOPnxsILnFL6k=
-github.com/go-toolsmith/astfmt v1.0.0/go.mod h1:cnWmsOAuq4jJY6Ct5YWlVLmcmLMn1JUPuQIHCY7CJDw=
-github.com/go-toolsmith/astinfo v0.0.0-20180906194353-9809ff7efb21/go.mod h1:dDStQCHtmZpYOmjRP/8gHHnCCch3Zz3oEgCdZVdtweU=
-github.com/go-toolsmith/astp v0.0.0-20180903215135-0af7e3c24f30/go.mod h1:SV2ur98SGypH1UjcPpCatrV5hPazG6+IfNHbkDXBRrk=
-github.com/go-toolsmith/astp v1.0.0 h1:alXE75TXgcmupDsMK1fRAy0YUzLzqPVvBKoyWV+KPXg=
-github.com/go-toolsmith/astp v1.0.0/go.mod h1:RSyrtpVlfTFGDYRbrjyWP1pYu//tSFcvdYrA8meBmLI=
-github.com/go-toolsmith/pkgload v0.0.0-20181119091011-e9e65178eee8/go.mod h1:WoMrjiy4zvdS+Bg6z9jZH82QXwkcgCBX6nOfnmdaHks=
-github.com/go-toolsmith/pkgload v1.0.0/go.mod h1:5eFArkbO80v7Z0kdngIxsRXRMTaX4Ilcwuh3clNrQJc=
-github.com/go-toolsmith/strparse v1.0.0 h1:Vcw78DnpCAKlM20kSbAyO4mPfJn/lyYA4BJUDxe2Jb4=
-github.com/go-toolsmith/strparse v1.0.0/go.mod h1:YI2nUKP9YGZnL/L1/DLFBfixrcjslWct4wyljWhSRy8=
-github.com/go-toolsmith/typep v1.0.0 h1:zKymWyA1TRYvqYrYDrfEMZULyrhcnGY3x7LDKU2XQaA=
-github.com/go-toolsmith/typep v1.0.0/go.mod h1:JSQCQMUPdRlMZFswiq3TGpNp1GMktqkR2Ns5AIQkATU=
-github.com/gobwas/glob v0.2.3 h1:A4xDbljILXROh+kObIiy5kIaPYD8e96x1tgBhUI5J+Y=
-github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
-github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
 github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
 github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
-github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
@@ -114,37 +65,6 @@ github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
-github.com/golangci/check v0.0.0-20180506172741-cfe4005ccda2 h1:23T5iq8rbUYlhpt5DB4XJkc6BU31uODLD1o1gKvZmD0=
-github.com/golangci/check v0.0.0-20180506172741-cfe4005ccda2/go.mod h1:k9Qvh+8juN+UKMCS/3jFtGICgW8O96FVaZsaxdzDkR4=
-github.com/golangci/dupl v0.0.0-20180902072040-3e9179ac440a h1:w8hkcTqaFpzKqonE9uMCefW1WDie15eSP/4MssdenaM=
-github.com/golangci/dupl v0.0.0-20180902072040-3e9179ac440a/go.mod h1:ryS0uhF+x9jgbj/N71xsEqODy9BN81/GonCZiOzirOk=
-github.com/golangci/errcheck v0.0.0-20181223084120-ef45e06d44b6 h1:YYWNAGTKWhKpcLLt7aSj/odlKrSrelQwlovBpDuf19w=
-github.com/golangci/errcheck v0.0.0-20181223084120-ef45e06d44b6/go.mod h1:DbHgvLiFKX1Sh2T1w8Q/h4NAI8MHIpzCdnBUDTXU3I0=
-github.com/golangci/go-misc v0.0.0-20180628070357-927a3d87b613 h1:9kfjN3AdxcbsZBf8NjltjWihK2QfBBBZuv91cMFfDHw=
-github.com/golangci/go-misc v0.0.0-20180628070357-927a3d87b613/go.mod h1:SyvUF2NxV+sN8upjjeVYr5W7tyxaT1JVtvhKhOn2ii8=
-github.com/golangci/goconst v0.0.0-20180610141641-041c5f2b40f3 h1:pe9JHs3cHHDQgOFXJJdYkK6fLz2PWyYtP4hthoCMvs8=
-github.com/golangci/goconst v0.0.0-20180610141641-041c5f2b40f3/go.mod h1:JXrF4TWy4tXYn62/9x8Wm/K/dm06p8tCKwFRDPZG/1o=
-github.com/golangci/gocyclo v0.0.0-20180528134321-2becd97e67ee h1:J2XAy40+7yz70uaOiMbNnluTg7gyQhtGqLQncQh+4J8=
-github.com/golangci/gocyclo v0.0.0-20180528134321-2becd97e67ee/go.mod h1:ozx7R9SIwqmqf5pRP90DhR2Oay2UIjGuKheCBCNwAYU=
-github.com/golangci/gofmt v0.0.0-20181222123516-0b8337e80d98 h1:0OkFarm1Zy2CjCiDKfK9XHgmc2wbDlRMD2hD8anAJHU=
-github.com/golangci/gofmt v0.0.0-20181222123516-0b8337e80d98/go.mod h1:9qCChq59u/eW8im404Q2WWTrnBUQKjpNYKMbU4M7EFU=
-github.com/golangci/golangci-lint v1.19.1 h1:g9xL8KW7UZDCkVlgHYJMA6F4Sj/sRVa0FoCeXI+Z3iM=
-github.com/golangci/golangci-lint v1.19.1/go.mod h1:2CEc4Fxx3vxDv7g8DyXkHCBF73AOzAymcJAprs2vCps=
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@@ -152,24 +72,13 @@ github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
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@@ -177,22 +86,16 @@ github.com/jbenet/goprocess v0.1.3 h1:YKyIEECS/XvcfHtBzxtjBBbWK+MbvA6dG8ASiqwvr1
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@@ -200,7 +103,6 @@ github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFB
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@@ -210,32 +112,14 @@ github.com/libp2p/go-buffer-pool v0.0.2/go.mod h1:MvaB6xw5vOrDl8rYZGLFdKAuk/hRoR
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@@ -244,40 +128,8 @@ github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26 h1:Hr3zjRsq2bh
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-github.com/matrix-org/gomatrixserverlib v0.0.0-20200318150006-bc27294f9203/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20200318180716-bc4ff56961e2 h1:y4DOMbhgPAnATHJ4lNxTWxIlJG0SlIPhvukx1sQkty4=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20200318180716-bc4ff56961e2/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
 github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1 h1:osLoFdOy+ChQqVUn2PeTDETFftVkl4w9t/OW18g3lnk=
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@@ -285,14 +137,9 @@ github.com/matrix-org/util v0.0.0-20171127121716-2e2df66af2f5/go.mod h1:lePuOiXL
 github.com/matrix-org/util v0.0.0-20190711121626-527ce5ddefc7 h1:ntrLa/8xVzeSs8vHFHK25k0C+NV74sYMJnNSg5NoSRo=
 github.com/matrix-org/util v0.0.0-20190711121626-527ce5ddefc7/go.mod h1:vVQlW/emklohkZnOPwD3LrZUBqdfsbiyO3p1lNV8F6U=
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-github.com/mattn/goveralls v0.0.2/go.mod h1:8d1ZMHsd7fW6IRPKQh46F2WRpyib5/X4FOpevwGNQEw=
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@@ -305,16 +152,10 @@ github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1/go.mod h1:pD8Rv
 github.com/minio/sha256-simd v0.1.1-0.20190913151208-6de447530771/go.mod h1:B5e1o+1/KgNmWrSQK08Y6Z1Vb5pwIktudl0J58iy0KM=
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-github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
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 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
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@@ -332,22 +173,15 @@ github.com/multiformats/go-varint v0.0.5/go.mod h1:3Ls8CIEsrijN6+B7PbrXRPxHRPuXS
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/nbio/st v0.0.0-20140626010706-e9e8d9816f32 h1:W6apQkHrMkS0Muv8G/TipAy/FJl/rCYT0+EuS8+Z0z4=
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 github.com/nfnt/resize v0.0.0-20160724205520-891127d8d1b5/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
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 github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
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@@ -356,7 +190,6 @@ github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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@@ -366,65 +199,32 @@ github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:
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@@ -440,9 +240,6 @@ github.com/tidwall/pretty v1.0.1 h1:WE4RBSZ1x6McVVC8S/Md+Qse8YUv6HRObAx6ke00NY8=
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@@ -453,40 +250,20 @@ github.com/uber/jaeger-lib v1.5.0 h1:OHbgr8l656Ub3Fw5k9SWnBfIEwvoHQ+W2y+Aa9D1Uyo
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@@ -495,20 +272,17 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
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@@ -527,43 +301,26 @@ golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5h
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 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190911201528-7ad0cfa0b7b5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191010194322-b09406accb47/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200122134326-e047566fdf82 h1:ywK/j/KkyTHcdyYSZNXGjMwgmDSfjglYZ3vStQ/gSCU=
 golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20181117154741-2ddaf7f79a09/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20181130052023-1c3d964395ce/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190110163146-51295c7ec13a/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190311215038-5c2858a9cfe5/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c h1:IGkKhmfzcztjm6gYkykvu/NiS8kaqbCWAEWWAyf8J5U=
-golang.org/x/tools v0.0.0-20190322203728-c1a832b0ad89/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190521203540-521d6ed310dd/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
-golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
-golang.org/x/tools v0.0.0-20190719005602-e377ae9d6386/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
-golang.org/x/tools v0.0.0-20190910044552-dd2b5c81c578/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20190911230505-6bfd74cf029c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20190912215617-3720d1ec3678 h1:rM1Udd0CgtYI3KUIhu9ROz0QCqjW+n/ODp/hH7c60Xc=
-golang.org/x/tools v0.0.0-20190912215617-3720d1ec3678/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
@@ -574,7 +331,6 @@ google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoA
 google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
-google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 gopkg.in/Shopify/sarama.v1 v1.20.1 h1:Gi09A3fJXm0Jgt8kuKZ8YK+r60GfYn7MQuEmI3oq6hE=
 gopkg.in/Shopify/sarama.v1 v1.20.1/go.mod h1:AxnvoaevB2nBjNK17cG61A3LleFcWFwVBHBt+cot4Oc=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
@@ -584,7 +340,6 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/h2non/bimg.v1 v1.0.18 h1:qn6/RpBHt+7WQqoBcK+aF2puc6nC78eZj5LexxoalT4=
 gopkg.in/h2non/bimg.v1 v1.0.18/go.mod h1:PgsZL7dLwUbsGm1NYps320GxGgvQNTnecMCZqxV11So=
@@ -592,11 +347,9 @@ gopkg.in/h2non/gock.v1 v1.0.14 h1:fTeu9fcUvSnLNacYvYI54h+1/XEteDyHvrVCZEEEYNM=
 gopkg.in/h2non/gock.v1 v1.0.14/go.mod h1:sX4zAkdYX1TRGJ2JY156cFspQn4yRWn6p9EMdODlynE=
 gopkg.in/macaroon.v2 v2.1.0 h1:HZcsjBCzq9t0eBPMKqTN/uSN6JOm78ZJ2INbqcBQOUI=
 gopkg.in/macaroon.v2 v2.1.0/go.mod h1:OUb+TQP/OP0WOerC2Jp/3CwhIKyIa9kQjuc7H24e6/o=
-gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/src-d/go-cli.v0 v0.0.0-20181105080154-d492247bbc0d/go.mod h1:z+K8VcOYVYcSwSjGebuDL6176A1XskgbtNl64NSg+n8=
 gopkg.in/src-d/go-log.v1 v1.0.1/go.mod h1:GN34hKP0g305ysm2/hctJ0Y8nWP3zxXXJ8GFabTyABE=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
-gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
@@ -604,13 +357,3 @@ gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5 h1:ymVxjfMaHvXD8RqPRmzHHsB3VvucivSkIAvJFDI5O3c=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
-honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed h1:WX1yoOaKQfddO/mLzdV4wptyWgoH/6hwLs7QHTixo0I=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b h1:DxJ5nJdkhDlLok9K6qO+5290kphDJbHOQO1DFFFTeBo=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f h1:Cq7MalBHYACRd6EesksG1Q8EoIAKOsiZviGKbOLIej4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZIVpwbkw+04kSxk3rAtzlimaUJw=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4 h1:JPJh2pk3+X4lXAkZIk2RuE/7/FoK9maXw+TNPJhVS/c=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

roomserver/alias/alias.go

@@ -17,7 +17,6 @@ package alias
 import (
 	"context"
 	"encoding/json"
-	"fmt"
 	"net/http"
 	"time"
 
@@ -250,10 +249,10 @@ func (r *RoomserverAliasAPI) sendUpdatedAliasesEvent(
 	}
 
 	// Build the event
-	eventID := fmt.Sprintf("$%s:%s", util.RandomString(16), r.Cfg.Matrix.ServerName)
 	now := time.Now()
 	event, err := builder.Build(
-		eventID, now, r.Cfg.Matrix.ServerName, r.Cfg.Matrix.KeyID, r.Cfg.Matrix.PrivateKey,
+		now, r.Cfg.Matrix.ServerName, r.Cfg.Matrix.KeyID,
+		r.Cfg.Matrix.PrivateKey, roomVersion,
 	)
 	if err != nil {
 		return err

roomserver/api/query.go

@@ -261,6 +261,16 @@ type QueryRoomVersionCapabilitiesResponse struct {
 	AvailableRoomVersions map[gomatrixserverlib.RoomVersion]string `json:"available"`
 }
 
+// QueryRoomVersionForRoom asks for the room version for a given room.
+type QueryRoomVersionForRoomRequest struct {
+	RoomID string `json:"room_id"`
+}
+
+// QueryRoomVersionCapabilitiesResponse is a response to QueryServersInRoomAtEventResponse
+type QueryRoomVersionForRoomResponse struct {
+	RoomVersion gomatrixserverlib.RoomVersion `json:"room_version"`
+}
+
 // RoomserverQueryAPI is used to query information from the room server.
 type RoomserverQueryAPI interface {
 	// Query the latest events and state for a room from the room server.
@@ -347,6 +357,13 @@ type RoomserverQueryAPI interface {
 		request *QueryRoomVersionCapabilitiesRequest,
 		response *QueryRoomVersionCapabilitiesResponse,
 	) error
+
+	// Asks for the room version for a given room.
+	QueryRoomVersionForRoom(
+		ctx context.Context,
+		request *QueryRoomVersionForRoomRequest,
+		response *QueryRoomVersionForRoomResponse,
+	) error
 }
 
 // RoomserverQueryLatestEventsAndStatePath is the HTTP path for the QueryLatestEventsAndState API.
@@ -385,6 +402,9 @@ const RoomserverQueryServersInRoomAtEventPath = "/api/roomserver/queryServersInR
 // RoomserverQueryRoomVersionCapabilitiesPath is the HTTP path for the QueryRoomVersionCapabilities API
 const RoomserverQueryRoomVersionCapabilitiesPath = "/api/roomserver/queryRoomVersionCapabilities"
 
+// RoomserverQueryRoomVersionCapabilitiesPath is the HTTP path for the QueryRoomVersionCapabilities API
+const RoomserverQueryRoomVersionForRoomPath = "/api/roomserver/queryRoomVersionForRoom"
+
 // NewRoomserverQueryAPIHTTP creates a RoomserverQueryAPI implemented by talking to a HTTP POST API.
 // If httpClient is nil then it uses the http.DefaultClient
 func NewRoomserverQueryAPIHTTP(roomserverURL string, httpClient *http.Client) RoomserverQueryAPI {
@@ -554,3 +574,16 @@ func (h *httpRoomserverQueryAPI) QueryRoomVersionCapabilities(
 	apiURL := h.roomserverURL + RoomserverQueryRoomVersionCapabilitiesPath
 	return commonHTTP.PostJSON(ctx, span, h.httpClient, apiURL, request, response)
 }
+
+// QueryRoomVersionForRoom implements RoomServerQueryAPI
+func (h *httpRoomserverQueryAPI) QueryRoomVersionForRoom(
+	ctx context.Context,
+	request *QueryRoomVersionForRoomRequest,
+	response *QueryRoomVersionForRoomResponse,
+) error {
+	span, ctx := opentracing.StartSpanFromContext(ctx, "QueryRoomVersionForRoom")
+	defer span.Finish()
+
+	apiURL := h.roomserverURL + RoomserverQueryRoomVersionForRoomPath
+	return commonHTTP.PostJSON(ctx, span, h.httpClient, apiURL, request, response)
+}

roomserver/input/authevents.go

@@ -27,7 +27,7 @@ import (
 func checkAuthEvents(
 	ctx context.Context,
 	db RoomEventDatabase,
-	event gomatrixserverlib.Event,
+	event gomatrixserverlib.HeaderedEvent,
 	authEventIDs []string,
 ) ([]types.EventNID, error) {
 	// Grab the numeric IDs for the supplied auth state events from the database.
@@ -38,7 +38,7 @@ func checkAuthEvents(
 	// TODO: check for duplicate state keys here.
 
 	// Work out which of the state events we actually need.
-	stateNeeded := gomatrixserverlib.StateNeededForAuth([]gomatrixserverlib.Event{event})
+	stateNeeded := gomatrixserverlib.StateNeededForAuth([]gomatrixserverlib.Event{event.Unwrap()})
 
 	// Load the actual auth events from the database.
 	authEvents, err := loadAuthEvents(ctx, db, stateNeeded, authStateEntries)
@@ -47,7 +47,7 @@ func checkAuthEvents(
 	}
 
 	// Check if the event is allowed.
-	if err = gomatrixserverlib.Allowed(event, &authEvents); err != nil {
+	if err = gomatrixserverlib.Allowed(event.Event, &authEvents); err != nil {
 		return nil, err
 	}
 

roomserver/input/events.go

@@ -96,10 +96,11 @@ func processRoomEvent(
 	input api.InputRoomEvent,
 ) (eventID string, err error) {
 	// Parse and validate the event JSON
-	event := input.Event
+	headered := input.Event
+	event := headered.Unwrap()
 
 	// Check that the event passes authentication checks and work out the numeric IDs for the auth events.
-	authEventNIDs, err := checkAuthEvents(ctx, db, event.Event, input.AuthEventIDs)
+	authEventNIDs, err := checkAuthEvents(ctx, db, headered, input.AuthEventIDs)
 	if err != nil {
 		return
 	}
@@ -107,7 +108,7 @@ func processRoomEvent(
 	if input.TransactionID != nil {
 		tdID := input.TransactionID
 		eventID, err = db.GetTransactionEventID(
-			ctx, tdID.TransactionID, tdID.SessionID, input.Event.Sender(),
+			ctx, tdID.TransactionID, tdID.SessionID, event.Sender(),
 		)
 		// On error OR event with the transaction already processed/processesing
 		if err != nil || eventID != "" {
@@ -116,7 +117,7 @@ func processRoomEvent(
 	}
 
 	// Store the event
-	roomNID, stateAtEvent, err := db.StoreEvent(ctx, event.Event, input.TransactionID, authEventNIDs)
+	roomNID, stateAtEvent, err := db.StoreEvent(ctx, event, input.TransactionID, authEventNIDs)
 	if err != nil {
 		return
 	}
@@ -131,7 +132,7 @@ func processRoomEvent(
 	if stateAtEvent.BeforeStateSnapshotNID == 0 {
 		// We haven't calculated a state for this event yet.
 		// Lets calculate one.
-		err = calculateAndSetState(ctx, db, input, roomNID, &stateAtEvent, event.Event)
+		err = calculateAndSetState(ctx, db, input, roomNID, &stateAtEvent, event)
 		if err != nil {
 			return
 		}
@@ -144,7 +145,7 @@ func processRoomEvent(
 
 	// Update the extremities of the event graph for the room
 	return event.EventID(), updateLatestEvents(
-		ctx, db, ow, roomNID, stateAtEvent, event.Event, input.SendAsServer, input.TransactionID,
+		ctx, db, ow, roomNID, stateAtEvent, event, input.SendAsServer, input.TransactionID,
 	)
 }
 
@@ -235,7 +236,8 @@ func processInviteEvent(
 		return nil
 	}
 
-	outputUpdates, err := updateToInviteMembership(updater, &input.Event.Event, nil)
+	event := input.Event.Unwrap()
+	outputUpdates, err := updateToInviteMembership(updater, &event, nil)
 	if err != nil {
 		return err
 	}

roomserver/query/query.go

@@ -123,6 +123,7 @@ func (r *RoomserverQueryAPI) QueryLatestEventsAndState(
 		return nil
 	}
 	response.RoomExists = true
+	response.RoomVersion = roomVersion
 
 	var currentStateSnapshotNID types.StateSnapshotNID
 	response.LatestEvents, currentStateSnapshotNID, response.Depth, err =
@@ -174,6 +175,7 @@ func (r *RoomserverQueryAPI) QueryStateAfterEvents(
 		return nil
 	}
 	response.RoomExists = true
+	response.RoomVersion = roomVersion
 
 	prevStates, err := r.DB.StateAtEventIDs(ctx, request.PrevEventIDs)
 	if err != nil {
@@ -713,6 +715,7 @@ func (r *RoomserverQueryAPI) QueryStateAndAuthChain(
 	if err != nil {
 		return err
 	}
+	response.RoomVersion = roomVersion
 
 	stateEvents, err := r.loadStateAtEventIDs(ctx, request.PrevEventIDs)
 	if err != nil {
@@ -871,6 +874,20 @@ func (r *RoomserverQueryAPI) QueryRoomVersionCapabilities(
 	return nil
 }
 
+// QueryRoomVersionCapabilities implements api.RoomserverQueryAPI
+func (r *RoomserverQueryAPI) QueryRoomVersionForRoom(
+	ctx context.Context,
+	request *api.QueryRoomVersionForRoomRequest,
+	response *api.QueryRoomVersionForRoomResponse,
+) error {
+	roomVersion, err := r.DB.GetRoomVersionForRoom(ctx, request.RoomID)
+	if err != nil {
+		return err
+	}
+	response.RoomVersion = roomVersion
+	return nil
+}
+
 // SetupHTTP adds the RoomserverQueryAPI handlers to the http.ServeMux.
 // nolint: gocyclo
 func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
@@ -1042,4 +1059,18 @@ func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
 			return util.JSONResponse{Code: http.StatusOK, JSON: &response}
 		}),
 	)
+	servMux.Handle(
+		api.RoomserverQueryRoomVersionForRoomPath,
+		common.MakeInternalAPI("QueryRoomVersionForRoom", func(req *http.Request) util.JSONResponse {
+			var request api.QueryRoomVersionForRoomRequest
+			var response api.QueryRoomVersionForRoomResponse
+			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
+				return util.ErrorResponse(err)
+			}
+			if err := r.QueryRoomVersionForRoom(req.Context(), &request, &response); err != nil {
+				return util.ErrorResponse(err)
+			}
+			return util.JSONResponse{Code: http.StatusOK, JSON: &response}
+		}),
+	)
 }

roomserver/query/query_test.go

@@ -54,7 +54,9 @@ func (db *getEventDB) addFakeEvent(eventID string, authIDs []string) error {
 		return err
 	}
 
-	event, err := gomatrixserverlib.NewEventFromTrustedJSON(eventJSON, false)
+	event, err := gomatrixserverlib.NewEventFromTrustedJSON(
+		eventJSON, false, gomatrixserverlib.RoomVersionV1,
+	)
 	if err != nil {
 		return err
 	}

roomserver/storage/postgres/events_table.go

@@ -116,6 +116,9 @@ const bulkSelectEventNIDSQL = "" +
 const selectMaxEventDepthSQL = "" +
 	"SELECT COALESCE(MAX(depth) + 1, 0) FROM roomserver_events WHERE event_nid = ANY($1)"
 
+const selectRoomNIDForEventNIDSQL = "" +
+	"SELECT room_nid FROM roomserver_events WHERE event_nid = $1"
+
 type eventStatements struct {
 	insertEventStmt                        *sql.Stmt
 	selectEventStmt                        *sql.Stmt
@@ -130,6 +133,7 @@ type eventStatements struct {
 	bulkSelectEventIDStmt                  *sql.Stmt
 	bulkSelectEventNIDStmt                 *sql.Stmt
 	selectMaxEventDepthStmt                *sql.Stmt
+	selectRoomNIDForEventNIDStmt           *sql.Stmt
 }
 
 func (s *eventStatements) prepare(db *sql.DB) (err error) {
@@ -152,6 +156,7 @@ func (s *eventStatements) prepare(db *sql.DB) (err error) {
 		{&s.bulkSelectEventIDStmt, bulkSelectEventIDSQL},
 		{&s.bulkSelectEventNIDStmt, bulkSelectEventNIDSQL},
 		{&s.selectMaxEventDepthStmt, selectMaxEventDepthSQL},
+		{&s.selectRoomNIDForEventNIDStmt, selectRoomNIDForEventNIDSQL},
 	}.prepare(db)
 }
 
@@ -417,6 +422,14 @@ func (s *eventStatements) selectMaxEventDepth(ctx context.Context, eventNIDs []t
 	return result, nil
 }
 
+func (s *eventStatements) selectRoomNIDForEventNID(
+	ctx context.Context, txn *sql.Tx, eventNID types.EventNID,
+) (roomNID types.RoomNID, err error) {
+	selectStmt := common.TxStmt(txn, s.selectRoomNIDForEventNIDStmt)
+	err = selectStmt.QueryRowContext(ctx, int64(eventNID)).Scan(&roomNID)
+	return
+}
+
 func eventNIDsAsArray(eventNIDs []types.EventNID) pq.Int64Array {
 	nids := make([]int64, len(eventNIDs))
 	for i := range eventNIDs {

roomserver/storage/postgres/rooms_table.go

@@ -18,6 +18,7 @@ package postgres
 import (
 	"context"
 	"database/sql"
+	"errors"
 
 	"github.com/lib/pq"
 	"github.com/matrix-org/dendrite/common"
@@ -176,6 +177,9 @@ func (s *roomStatements) selectRoomVersionForRoomID(
 	var roomVersion gomatrixserverlib.RoomVersion
 	stmt := common.TxStmt(txn, s.selectRoomVersionForRoomIDStmt)
 	err := stmt.QueryRowContext(ctx, roomID).Scan(&roomVersion)
+	if err == sql.ErrNoRows {
+		return roomVersion, errors.New("room not found")
+	}
 	return roomVersion, err
 }
 
@@ -185,5 +189,8 @@ func (s *roomStatements) selectRoomVersionForRoomNID(
 	var roomVersion gomatrixserverlib.RoomVersion
 	stmt := common.TxStmt(txn, s.selectRoomVersionForRoomNIDStmt)
 	err := stmt.QueryRowContext(ctx, roomNID).Scan(&roomVersion)
+	if err == sql.ErrNoRows {
+		return roomVersion, errors.New("room not found")
+	}
 	return roomVersion, err
 }

roomserver/storage/postgres/storage.go

@@ -254,10 +254,21 @@ func (d *Database) Events(
 	}
 	results := make([]types.Event, len(eventJSONs))
 	for i, eventJSON := range eventJSONs {
+		var roomNID types.RoomNID
+		var roomVersion gomatrixserverlib.RoomVersion
 		result := &results[i]
 		result.EventNID = eventJSON.EventNID
-		// TODO: Use NewEventFromTrustedJSON for efficiency
+		roomNID, err = d.statements.selectRoomNIDForEventNID(ctx, nil, eventJSON.EventNID)
-		result.Event, err = gomatrixserverlib.NewEventFromUntrustedJSON(eventJSON.EventJSON)
+		if err != nil {
+			return nil, err
+		}
+		roomVersion, err = d.statements.selectRoomVersionForRoomNID(ctx, nil, roomNID)
+		if err != nil {
+			return nil, err
+		}
+		result.Event, err = gomatrixserverlib.NewEventFromTrustedJSON(
+			eventJSON.EventJSON, false, roomVersion,
+		)
 		if err != nil {
 			return nil, err
 		}

roomserver/storage/sqlite3/events_table.go

@@ -96,6 +96,9 @@ const bulkSelectEventNIDSQL = "" +
 const selectMaxEventDepthSQL = "" +
 	"SELECT COALESCE(MAX(depth) + 1, 0) FROM roomserver_events WHERE event_nid IN ($1)"
 
+const selectRoomNIDForEventNIDSQL = "" +
+	"SELECT room_nid FROM roomserver_events WHERE event_nid = $1"
+
 type eventStatements struct {
 	db                                     *sql.DB
 	insertEventStmt                        *sql.Stmt
@@ -111,6 +114,7 @@ type eventStatements struct {
 	bulkSelectEventReferenceStmt           *sql.Stmt
 	bulkSelectEventIDStmt                  *sql.Stmt
 	bulkSelectEventNIDStmt                 *sql.Stmt
+	selectRoomNIDForEventNIDStmt           *sql.Stmt
 }
 
 func (s *eventStatements) prepare(db *sql.DB) (err error) {
@@ -134,6 +138,7 @@ func (s *eventStatements) prepare(db *sql.DB) (err error) {
 		{&s.bulkSelectEventReferenceStmt, bulkSelectEventReferenceSQL},
 		{&s.bulkSelectEventIDStmt, bulkSelectEventIDSQL},
 		{&s.bulkSelectEventNIDStmt, bulkSelectEventNIDSQL},
+		{&s.selectRoomNIDForEventNIDStmt, selectRoomNIDForEventNIDSQL},
 	}.prepare(db)
 }
 
@@ -472,6 +477,14 @@ func (s *eventStatements) selectMaxEventDepth(ctx context.Context, txn *sql.Tx,
 	return result, nil
 }
 
+func (s *eventStatements) selectRoomNIDForEventNID(
+	ctx context.Context, txn *sql.Tx, eventNID types.EventNID,
+) (roomNID types.RoomNID, err error) {
+	selectStmt := common.TxStmt(txn, s.selectRoomNIDForEventNIDStmt)
+	err = selectStmt.QueryRowContext(ctx, int64(eventNID)).Scan(&roomNID)
+	return
+}
+
 func eventNIDsAsArray(eventNIDs []types.EventNID) string {
 	b, _ := json.Marshal(eventNIDs)
 	return string(b)

roomserver/storage/sqlite3/rooms_table.go

@@ -19,6 +19,7 @@ import (
 	"context"
 	"database/sql"
 	"encoding/json"
+	"errors"
 
 	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/roomserver/types"
@@ -168,6 +169,9 @@ func (s *roomStatements) selectRoomVersionForRoomID(
 	var roomVersion gomatrixserverlib.RoomVersion
 	stmt := common.TxStmt(txn, s.selectRoomVersionForRoomIDStmt)
 	err := stmt.QueryRowContext(ctx, roomID).Scan(&roomVersion)
+	if err == sql.ErrNoRows {
+		return roomVersion, errors.New("room not found")
+	}
 	return roomVersion, err
 }
 
@@ -177,5 +181,8 @@ func (s *roomStatements) selectRoomVersionForRoomNID(
 	var roomVersion gomatrixserverlib.RoomVersion
 	stmt := common.TxStmt(txn, s.selectRoomVersionForRoomNIDStmt)
 	err := stmt.QueryRowContext(ctx, roomNID).Scan(&roomVersion)
+	if err == sql.ErrNoRows {
+		return roomVersion, errors.New("room not found")
+	}
 	return roomVersion, err
 }

roomserver/storage/sqlite3/storage.go

@@ -307,10 +307,21 @@ func (d *Database) Events(
 		}
 		results = make([]types.Event, len(eventJSONs))
 		for i, eventJSON := range eventJSONs {
+			var roomNID types.RoomNID
+			var roomVersion gomatrixserverlib.RoomVersion
 			result := &results[i]
 			result.EventNID = eventJSON.EventNID
-			// TODO: Use NewEventFromTrustedJSON for efficiency
+			roomNID, err = d.statements.selectRoomNIDForEventNID(ctx, txn, eventJSON.EventNID)
-			result.Event, err = gomatrixserverlib.NewEventFromUntrustedJSON(eventJSON.EventJSON)
+			if err != nil {
+				return err
+			}
+			roomVersion, err = d.statements.selectRoomVersionForRoomNID(ctx, txn, roomNID)
+			if err != nil {
+				return err
+			}
+			result.Event, err = gomatrixserverlib.NewEventFromTrustedJSON(
+				eventJSON.EventJSON, false, roomVersion,
+			)
 			if err != nil {
 				return nil
 			}

roomserver/version/version.go

@@ -39,8 +39,8 @@ var roomVersions = map[gomatrixserverlib.RoomVersion]RoomVersionDescription{
 		Stable:    true,
 	},
 	gomatrixserverlib.RoomVersionV2: RoomVersionDescription{
-		Supported: false,
+		Supported: true,
-		Stable:    false,
+		Stable:    true,
 	},
 	gomatrixserverlib.RoomVersionV3: RoomVersionDescription{
 		Supported: false,
@@ -59,7 +59,7 @@ var roomVersions = map[gomatrixserverlib.RoomVersion]RoomVersionDescription{
 // DefaultRoomVersion contains the room version that will, by
 // default, be used to create new rooms on this server.
 func DefaultRoomVersion() gomatrixserverlib.RoomVersion {
-	return gomatrixserverlib.RoomVersionV1
+	return gomatrixserverlib.RoomVersionV2
 }
 
 // RoomVersions returns a map of all known room versions to this

syncapi/routing/messages.go

@@ -362,12 +362,18 @@ func (r *messagesReq) handleNonEmptyEventsSlice(streamEvents []types.StreamEvent
 // Returns an error if there was an issue with retrieving the list of servers in
 // the room or sending the request.
 func (r *messagesReq) backfill(fromEventIDs []string, limit int) ([]gomatrixserverlib.HeaderedEvent, error) {
+	verReq := api.QueryRoomVersionForRoomRequest{RoomID: r.roomID}
+	verRes := api.QueryRoomVersionForRoomResponse{}
+	if err := r.queryAPI.QueryRoomVersionForRoom(r.ctx, &verReq, &verRes); err != nil {
+		return nil, err
+	}
+
 	srvToBackfillFrom, err := r.serverToBackfillFrom(fromEventIDs)
 	if err != nil {
 		return nil, fmt.Errorf("Cannot find server to backfill from: %w", err)
 	}
 
-	pdus := make([]gomatrixserverlib.HeaderedEvent, 0)
+	headered := make([]gomatrixserverlib.HeaderedEvent, 0)
 
 	// If the roomserver responded with at least one server that isn't us,
 	// send it a request for backfill.
@@ -380,17 +386,20 @@ func (r *messagesReq) backfill(fromEventIDs []string, limit int) ([]gomatrixserv
 	}
 
 	for _, p := range txn.PDUs {
-		pdus = append(pdus, p.Headered(gomatrixserverlib.RoomVersionV1))
+		event, e := gomatrixserverlib.NewEventFromUntrustedJSON(p, verRes.RoomVersion)
+		if e != nil {
+			continue
 		}
-	util.GetLogger(r.ctx).WithField("server", srvToBackfillFrom).WithField("new_events", len(pdus)).Info("Storing new events from backfill")
+		headered = append(headered, event.Headered(verRes.RoomVersion))
+	}
+	util.GetLogger(r.ctx).WithField("server", srvToBackfillFrom).WithField("new_events", len(headered)).Info("Storing new events from backfill")
 
 	// Store the events in the database, while marking them as unfit to show
 	// up in responses to sync requests.
-	for _, pdu := range pdus {
+	for i := range headered {
-		headered := pdu.Headered(gomatrixserverlib.RoomVersionV1)
 		if _, err = r.db.WriteEvent(
 			r.ctx,
-			&headered,
+			&headered[i],
 			[]gomatrixserverlib.HeaderedEvent{},
 			[]string{},
 			[]string{},
@@ -400,7 +409,7 @@ func (r *messagesReq) backfill(fromEventIDs []string, limit int) ([]gomatrixserv
 		}
 	}
 
-	return pdus, nil
+	return headered, nil
 }
 
 func (r *messagesReq) serverToBackfillFrom(fromEventIDs []string) (gomatrixserverlib.ServerName, error) {

sytest-blacklist

@@ -28,3 +28,7 @@ Outbound federation can backfill events
 
 # Blacklisted due to alias work on Synapse
 Alias creators can delete canonical alias with no ops
+
+# Blacklisted because we need to implement v2 invite endpoints for room versions
+# to be supported (currently fails with M_UNSUPPORTED_ROOM_VERSION) 
+Inbound federation rejects invites which are not signed by the sender

sytest-whitelist

@@ -183,7 +183,6 @@ After deactivating account, can't log in with an email
 Remote room alias queries can handle Unicode
 Newly joined room is included in an incremental sync after invite
 Inbound /v1/make_join rejects remote attempts to join local users to rooms
-Inbound federation rejects invites which are not signed by the sender
 Local room members see posted message events
 Fetching eventstream a second time doesn't yield the message again
 Local non-members don't see posted message events
@@ -223,3 +222,12 @@ GET /joined_rooms lists newly-created room
 Message history can be paginated over federation
 GET /rooms/:room_id/messages returns a message
 Remote user can backfill in a room with version 1
+POST /createRoom creates a room with the given version
+POST /createRoom rejects attempts to create rooms with numeric versions
+POST /createRoom rejects attempts to create rooms with unknown versions
+User can create and send/receive messages in a room with version 2
+local user can join room with version 2
+remote user can join room with version 2
+User can invite local user to room with version 2
+Remote user can backfill in a room with version 2
+Inbound federation accepts attempts to join v2 rooms from servers with support