fix conflicts

.golangci.yml

@@ -102,7 +102,7 @@ linters-settings:
     #local-prefixes: github.com/org/project
   gocyclo:
     # minimal code complexity to report, 30 by default (but we recommend 10-20)
-    min-complexity: 12
+    min-complexity: 13
   maligned:
     # print struct with more effective memory layout or not, false by default
     suggest-new: true

appservice/consumers/roomserver.go

@@ -101,11 +101,11 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		"type":     ev.Type(),
 	}).Info("appservice received an event from roomserver")
 
-	missingEvents, err := s.lookupMissingStateEvents(output.NewRoomEvent.AddsStateEventIDs, ev)
+	missingEvents, err := s.lookupMissingStateEvents(output.NewRoomEvent.AddsStateEventIDs, ev.Event)
 	if err != nil {
 		return err
 	}
-	events := append(missingEvents, ev)
+	events := append(missingEvents, ev.Event)
 
 	// Send event to any relevant application services
 	return s.filterRoomserverEvents(context.TODO(), events)
@@ -143,7 +143,9 @@ func (s *OutputRoomEventConsumer) lookupMissingStateEvents(
 		return nil, err
 	}
 
-	result = append(result, eventResp.Events...)
+	for _, headeredEvent := range eventResp.Events {
+		result = append(result, headeredEvent.Event)
+	}
 
 	return result, nil
 }

clientapi/auth/storage/accounts/postgres/account_data_table.go

@@ -18,6 +18,8 @@ import (
 	"context"
 	"database/sql"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/matrix-org/gomatrixserverlib"
 )
 
@@ -90,7 +92,7 @@ func (s *accountDataStatements) selectAccountData(
 	if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectAccountData: rows.close() failed")
 
 	global = []gomatrixserverlib.ClientEvent{}
 	rooms = make(map[string][]gomatrixserverlib.ClientEvent)

clientapi/auth/storage/accounts/postgres/membership_table.go

@@ -18,6 +18,8 @@ import (
 	"context"
 	"database/sql"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/lib/pq"
 	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
 )
@@ -125,7 +127,7 @@ func (s *membershipStatements) selectMembershipsByLocalpart(
 
 	memberships = []authtypes.Membership{}
 
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectMembershipsByLocalpart: rows.close() failed")
 	for rows.Next() {
 		var m authtypes.Membership
 		m.Localpart = localpart

clientapi/auth/storage/accounts/sqlite3/membership_table.go

@@ -125,7 +125,7 @@ func (s *membershipStatements) selectMembershipsByLocalpart(
 
 	memberships = []authtypes.Membership{}
 
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectMembershipsByLocalpart: rows.close() failed")
 	for rows.Next() {
 		var m authtypes.Membership
 		m.Localpart = localpart

clientapi/auth/storage/accounts/sqlite3/threepid_table.go

@@ -97,7 +97,7 @@ func (s *threepidStatements) selectThreePIDsForLocalpart(
 	if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectThreePIDsForLocalpart: rows.close() failed")
 
 	threepids = []authtypes.ThreePID{}
 	for rows.Next() {

clientapi/auth/storage/devices/postgres/devices_table.go

@@ -226,7 +226,7 @@ func (s *devicesStatements) selectDevicesByLocalpart(
 	if err != nil {
 		return devices, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectDevicesByLocalpart: rows.close() failed")
 
 	for rows.Next() {
 		var dev authtypes.Device

clientapi/consumers/roomserver.go

@@ -91,7 +91,7 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		"type":     ev.Type(),
 	}).Info("received event from roomserver")
 
-	events, err := s.lookupStateEvents(output.NewRoomEvent.AddsStateEventIDs, ev)
+	events, err := s.lookupStateEvents(output.NewRoomEvent.AddsStateEventIDs, ev.Event)
 	if err != nil {
 		return err
 	}
@@ -138,7 +138,9 @@ func (s *OutputRoomEventConsumer) lookupStateEvents(
 		return nil, err
 	}
 
-	result = append(result, eventResp.Events...)
+	for _, headeredEvent := range eventResp.Events {
+		result = append(result, headeredEvent.Event)
+	}
 
 	return result, nil
 }

clientapi/jsonerror/jsonerror.go

@@ -124,6 +124,12 @@ func GuestAccessForbidden(msg string) *MatrixError {
 	return &MatrixError{"M_GUEST_ACCESS_FORBIDDEN", msg}
 }
 
+// UnsupportedRoomVersion is an error which is returned when the client
+// requests a room with a version that is unsupported.
+func UnsupportedRoomVersion(msg string) *MatrixError {
+	return &MatrixError{"M_UNSUPPORTED_ROOM_VERSION", msg}
+}
+
 // LimitExceededError is a rate-limiting error.
 type LimitExceededError struct {
 	MatrixError

clientapi/producers/roomserver.go

@@ -40,9 +40,11 @@ func (c *RoomserverProducer) SendEvents(
 ) (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,
+			Event:         event.Headered(roomVersion),
 			AuthEventIDs:  event.AuthEventIDs(),
 			SendAsServer:  string(sendAsServer),
 			TransactionID: txnID,
@@ -61,11 +63,14 @@ func (c *RoomserverProducer) SendEventWithState(
 		return err
 	}
 
+	// TODO: Room version here
+	roomVersion := gomatrixserverlib.RoomVersionV1
+
 	ires := make([]api.InputRoomEvent, len(outliers)+1)
 	for i, outlier := range outliers {
 		ires[i] = api.InputRoomEvent{
 			Kind:         api.KindOutlier,
-			Event:        outlier,
+			Event:        outlier.Headered(roomVersion),
 			AuthEventIDs: outlier.AuthEventIDs(),
 		}
 	}
@@ -77,7 +82,7 @@ func (c *RoomserverProducer) SendEventWithState(
 
 	ires[len(outliers)] = api.InputRoomEvent{
 		Kind:          api.KindNew,
-		Event:         event,
+		Event:         event.Headered(roomVersion),
 		AuthEventIDs:  event.AuthEventIDs(),
 		HasState:      true,
 		StateEventIDs: stateEventIDs,
@@ -104,8 +109,13 @@ func (c *RoomserverProducer) SendInputRoomEvents(
 func (c *RoomserverProducer) SendInvite(
 	ctx context.Context, inviteEvent gomatrixserverlib.Event,
 ) error {
+	// TODO: Room version here
+	roomVersion := gomatrixserverlib.RoomVersionV1
+
 	request := api.InputRoomEventsRequest{
-		InputInviteEvents: []api.InputInviteEvent{{Event: inviteEvent}},
+		InputInviteEvents: []api.InputInviteEvent{{
+			Event: inviteEvent.Headered(roomVersion),
+		}},
 	}
 	var response api.InputRoomEventsResponse
 	return c.InputAPI.InputRoomEvents(ctx, &request, &response)

clientapi/routing/createroom.go

@@ -23,6 +23,7 @@ import (
 
 	appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
 	roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
+	roomserverVersion "github.com/matrix-org/dendrite/roomserver/version"
 
 	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
@@ -38,15 +39,16 @@ import (
 
 // https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
 type createRoomRequest struct {
-	Invite          []string               `json:"invite"`
+	Invite          []string                      `json:"invite"`
-	Name            string                 `json:"name"`
+	Name            string                        `json:"name"`
-	Visibility      string                 `json:"visibility"`
+	Visibility      string                        `json:"visibility"`
-	Topic           string                 `json:"topic"`
+	Topic           string                        `json:"topic"`
-	Preset          string                 `json:"preset"`
+	Preset          string                        `json:"preset"`
-	CreationContent map[string]interface{} `json:"creation_content"`
+	CreationContent map[string]interface{}        `json:"creation_content"`
-	InitialState    []fledglingEvent       `json:"initial_state"`
+	InitialState    []fledglingEvent              `json:"initial_state"`
-	RoomAliasName   string                 `json:"room_alias_name"`
+	RoomAliasName   string                        `json:"room_alias_name"`
-	GuestCanJoin    bool                   `json:"guest_can_join"`
+	GuestCanJoin    bool                          `json:"guest_can_join"`
+	RoomVersion     gomatrixserverlib.RoomVersion `json:"room_version"`
 }
 
 const (
@@ -180,15 +182,28 @@ func createRoom(
 	}
 
 	r.CreationContent["creator"] = userID
-	r.CreationContent["room_version"] = "1" // TODO: We set this to 1 before we support Room versioning
+	roomVersion := roomserverVersion.DefaultRoomVersion()
+	if r.RoomVersion != "" {
+		candidateVersion := gomatrixserverlib.RoomVersion(r.RoomVersion)
+		_, roomVersionError := roomserverVersion.SupportedRoomVersion(candidateVersion)
+		if roomVersionError != nil {
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: jsonerror.UnsupportedRoomVersion(roomVersionError.Error()),
+			}
+		}
+		roomVersion = candidateVersion
+	}
+	r.CreationContent["room_version"] = roomVersion
 
 	// TODO: visibility/presets/raw initial state
 	// TODO: Create room alias association
 	// Make sure this doesn't fall into an application service's namespace though!
 
 	logger.WithFields(log.Fields{
-		"userID": userID,
+		"userID":      userID,
-		"roomID": roomID,
+		"roomID":      roomID,
+		"roomVersion": r.CreationContent["room_version"],
 	}).Info("Creating new room")
 
 	profile, err := appserviceAPI.RetrieveUserProfile(req.Context(), userID, asAPI, accountDB)

clientapi/routing/getevent.go

@@ -66,7 +66,7 @@ func GetEvent(
 		}
 	}
 
-	requestedEvent := eventsResp.Events[0]
+	requestedEvent := eventsResp.Events[0].Event
 
 	r := getEventRequest{
 		req:            req,

clientapi/routing/sendevent.go

@@ -144,7 +144,7 @@ func generateSendEvent(
 	// check to see if this user can perform this operation
 	stateEvents := make([]*gomatrixserverlib.Event, len(queryRes.StateEvents))
 	for i := range queryRes.StateEvents {
-		stateEvents[i] = &queryRes.StateEvents[i]
+		stateEvents[i] = &queryRes.StateEvents[i].Event
 	}
 	provider := gomatrixserverlib.NewAuthEvents(stateEvents)
 	if err = gomatrixserverlib.Allowed(*e, &provider); err != nil {

cmd/create-room-events/main.go

@@ -125,7 +125,7 @@ func writeEvent(event gomatrixserverlib.Event) {
 	if *format == "InputRoomEvent" {
 		var ire api.InputRoomEvent
 		ire.Kind = api.KindNew
-		ire.Event = event
+		ire.Event = event.Headered(gomatrixserverlib.RoomVersionV1)
 		authEventIDs := []string{}
 		for _, ref := range b.AuthEvents {
 			authEventIDs = append(authEventIDs, ref.EventID)

cmd/syncserver-integration-tests/main.go

@@ -104,7 +104,7 @@ func clientEventJSONForOutputRoomEvent(outputRoomEvent string) string {
 		panic("failed to unmarshal output room event: " + err.Error())
 	}
 	clientEvs := gomatrixserverlib.ToClientEvents([]gomatrixserverlib.Event{
-		out.NewRoomEvent.Event,
+		out.NewRoomEvent.Event.Event,
 	}, gomatrixserverlib.FormatSync)
 	b, err := json.Marshal(clientEvs[0])
 	if err != nil {

common/events.go

@@ -89,7 +89,7 @@ func AddPrevEventsToEvent(
 	authEvents := gomatrixserverlib.NewAuthEvents(nil)
 
 	for i := range queryRes.StateEvents {
-		err = authEvents.AddEvent(&queryRes.StateEvents[i])
+		err = authEvents.AddEvent(&queryRes.StateEvents[i].Event)
 		if err != nil {
 			return err
 		}

common/keydb/postgres/server_key_table.go

@@ -19,6 +19,8 @@ import (
 	"context"
 	"database/sql"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/lib/pq"
 	"github.com/matrix-org/gomatrixserverlib"
 )
@@ -91,7 +93,7 @@ func (s *serverKeyStatements) bulkSelectServerKeys(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectServerKeys: rows.close() failed")
 	results := map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult{}
 	for rows.Next() {
 		var serverName string

common/keydb/sqlite3/server_key_table.go

@@ -124,7 +124,7 @@ func (s *serverKeyStatements) bulkSelectServerKeys(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectServerKeys: rows.close() failed")
 	results := map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult{}
 	for rows.Next() {
 		var serverName string

common/log.go

@@ -15,13 +15,17 @@
 package common
 
 import (
+	"context"
 	"fmt"
+	"io"
 	"os"
 	"path"
 	"path/filepath"
 	"runtime"
 	"strings"
 
+	"github.com/matrix-org/util"
+
 	"github.com/matrix-org/dendrite/common/config"
 	"github.com/matrix-org/dugong"
 	"github.com/sirupsen/logrus"
@@ -156,3 +160,17 @@ func setupFileHook(hook config.LogrusHook, level logrus.Level, componentName str
 		),
 	})
 }
+
+//CloseAndLogIfError Closes io.Closer and logs the error if any
+func CloseAndLogIfError(ctx context.Context, closer io.Closer, message string) {
+	if closer == nil {
+		return
+	}
+	err := closer.Close()
+	if ctx == nil {
+		ctx = context.TODO()
+	}
+	if err != nil {
+		util.GetLogger(ctx).WithError(err).Error(message)
+	}
+}

common/partition_offset_table.go

@@ -90,7 +90,7 @@ func (s *PartitionOffsetStatements) selectPartitionOffsets(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer CloseAndLogIfError(ctx, rows, "selectPartitionOffsets: rows.close() failed")
 	var results []PartitionOffset
 	for rows.Next() {
 		var offset PartitionOffset

federationapi/routing/backfill.go

@@ -84,10 +84,10 @@ func Backfill(
 	// Filter any event that's not from the requested room out.
 	evs := make([]gomatrixserverlib.Event, 0)
 
-	var ev gomatrixserverlib.Event
+	var ev gomatrixserverlib.HeaderedEvent
 	for _, ev = range res.Events {
 		if ev.RoomID() == roomID {
-			evs = append(evs, ev)
+			evs = append(evs, ev.Event)
 		}
 	}
 

federationapi/routing/events.go

@@ -80,5 +80,5 @@ func getEvent(
 		return nil, &util.JSONResponse{Code: http.StatusNotFound, JSON: nil}
 	}
 
-	return &eventsResponse.Events[0], nil
+	return &eventsResponse.Events[0].Event, nil
 }

federationapi/routing/join.go

@@ -78,7 +78,7 @@ func MakeJoin(
 	// Check that the join is allowed or not
 	stateEvents := make([]*gomatrixserverlib.Event, len(queryRes.StateEvents))
 	for i := range queryRes.StateEvents {
-		stateEvents[i] = &queryRes.StateEvents[i]
+		stateEvents[i] = &queryRes.StateEvents[i].Event
 	}
 	provider := gomatrixserverlib.NewAuthEvents(stateEvents)
 	if err = gomatrixserverlib.Allowed(*event, &provider); err != nil {

federationapi/routing/leave.go

@@ -76,7 +76,7 @@ func MakeLeave(
 	// Check that the leave is allowed or not
 	stateEvents := make([]*gomatrixserverlib.Event, len(queryRes.StateEvents))
 	for i := range queryRes.StateEvents {
-		stateEvents[i] = &queryRes.StateEvents[i]
+		stateEvents[i] = &queryRes.StateEvents[i].Event
 	}
 	provider := gomatrixserverlib.NewAuthEvents(stateEvents)
 	if err = gomatrixserverlib.Allowed(*event, &provider); err != nil {

federationapi/routing/missingevents.go

@@ -68,8 +68,8 @@ func GetMissingEvents(
 
 // filterEvents returns only those events with matching roomID and having depth greater than minDepth
 func filterEvents(
-	events []gomatrixserverlib.Event, minDepth int64, roomID string,
+	events []gomatrixserverlib.HeaderedEvent, minDepth int64, roomID string,
-) []gomatrixserverlib.Event {
+) []gomatrixserverlib.HeaderedEvent {
 	ref := events[:0]
 	for _, ev := range events {
 		if ev.Depth() >= minDepth && ev.RoomID() == roomID {

federationapi/routing/send.go

@@ -116,6 +116,7 @@ func (t *txnReq) processTransaction() (*gomatrixserverlib.RespSend, error) {
 			results[e.EventID()] = gomatrixserverlib.PDUResult{
 				Error: err.Error(),
 			}
+			util.GetLogger(t.context).WithError(err).WithField("event_id", e.EventID()).Warn("Failed to process incoming federation event, skipping it.")
 		} else {
 			results[e.EventID()] = gomatrixserverlib.PDUResult{}
 		}
@@ -162,7 +163,11 @@ func (t *txnReq) processEvent(e gomatrixserverlib.Event) error {
 	}
 
 	// Check that the event is allowed by the state at the event.
-	if err := checkAllowedByState(e, stateResp.StateEvents); err != nil {
+	var events []gomatrixserverlib.Event
+	for _, headeredEvent := range stateResp.StateEvents {
+		events = append(events, headeredEvent.Event)
+	}
+	if err := checkAllowedByState(e, events); err != nil {
 		return err
 	}
 

federationapi/routing/state.go

@@ -129,9 +129,17 @@ 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: response.StateEvents,
+		StateEvents: stateEvents,
-		AuthEvents:  response.AuthChainEvents,
+		AuthEvents:  authEvents,
 	}, nil
 }
 

federationapi/routing/threepid.go

@@ -264,7 +264,7 @@ func buildMembershipEvent(
 	authEvents := gomatrixserverlib.NewAuthEvents(nil)
 
 	for i := range queryRes.StateEvents {
-		err = authEvents.AddEvent(&queryRes.StateEvents[i])
+		err = authEvents.AddEvent(&queryRes.StateEvents[i].Event)
 		if err != nil {
 			return nil, err
 		}

federationsender/consumers/roomserver.go

@@ -109,7 +109,7 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 // processMessage updates the list of currently joined hosts in the room
 // and then sends the event to the hosts that were joined before the event.
 func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent) error {
-	addsStateEvents, err := s.lookupStateEvents(ore.AddsStateEventIDs, ore.Event)
+	addsStateEvents, err := s.lookupStateEvents(ore.AddsStateEventIDs, ore.Event.Event)
 	if err != nil {
 		return err
 	}
@@ -155,7 +155,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent) err
 
 	// Send the event.
 	return s.queues.SendEvent(
-		&ore.Event, gomatrixserverlib.ServerName(ore.SendAsServer), joinedHostsAtEvent,
+		&ore.Event.Event, gomatrixserverlib.ServerName(ore.SendAsServer), joinedHostsAtEvent,
 	)
 }
 
@@ -178,7 +178,7 @@ func (s *OutputRoomEventConsumer) joinedHostsAtEvent(
 		ore.AddsStateEventIDs, ore.RemovesStateEventIDs,
 		ore.StateBeforeAddsEventIDs, ore.StateBeforeRemovesEventIDs,
 	)
-	combinedAddsEvents, err := s.lookupStateEvents(combinedAdds, ore.Event)
+	combinedAddsEvents, err := s.lookupStateEvents(combinedAdds, ore.Event.Event)
 	if err != nil {
 		return nil, err
 	}
@@ -325,7 +325,10 @@ func (s *OutputRoomEventConsumer) lookupStateEvents(
 		return nil, err
 	}
 
-	result = append(result, eventResp.Events...)
+	for _, headeredEvent := range eventResp.Events {
+		result = append(result, headeredEvent.Event)
+	}
+
 	missing = missingEventsFrom(result, addsStateEventIDs)
 
 	if len(missing) != 0 {

federationsender/storage/postgres/joined_hosts_table.go

@@ -118,7 +118,7 @@ func joinedHostsFromStmt(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "joinedHostsFromStmt: rows.close() failed")
 
 	var result []types.JoinedHost
 	for rows.Next() {

federationsender/storage/sqlite3/joined_hosts_table.go

@@ -121,7 +121,7 @@ func joinedHostsFromStmt(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "joinedHostsFromStmt: rows.close() failed")
 
 	var result []types.JoinedHost
 	for rows.Next() {

go.mod

@@ -2,6 +2,7 @@ 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
@@ -10,7 +11,7 @@ require (
 	github.com/matrix-org/go-http-js-libp2p v0.0.0-20200310180544-7f3fad43b51c
 	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 v0.0.0-20200316144058-cc6847798a3f
+	github.com/matrix-org/gomatrixserverlib v0.0.0-20200317140257-ddc7feaaf2fd
 	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

go.sum

@@ -1,14 +1,20 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+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=
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@@ -100,6 +200,7 @@ github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFB
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@@ -110,7 +211,12 @@ github.com/libp2p/go-flow-metrics v0.0.3/go.mod h1:HeoSNUrOJVK1jEpDqVEiUOIXqhbnS
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@@ -142,6 +248,26 @@ github.com/matrix-org/gomatrixserverlib v0.0.0-20200316100021-ac4a53d49690 h1:aQ
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@@ -149,9 +275,14 @@ github.com/matrix-org/util v0.0.0-20171127121716-2e2df66af2f5/go.mod h1:lePuOiXL
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@@ -164,10 +295,16 @@ github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1/go.mod h1:pD8Rv
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@@ -283,19 +483,24 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
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@@ -309,25 +514,43 @@ golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5h
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@@ -337,6 +560,7 @@ 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=
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@@ -346,6 +570,7 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33
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 gopkg.in/h2non/bimg.v1 v1.0.18/go.mod h1:PgsZL7dLwUbsGm1NYps320GxGgvQNTnecMCZqxV11So=
@@ -353,9 +578,11 @@ 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=
@@ -363,3 +590,13 @@ 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=

mediaapi/storage/postgres/thumbnail_table.go

@@ -20,6 +20,8 @@ import (
 	"database/sql"
 	"time"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/matrix-org/dendrite/mediaapi/types"
 	"github.com/matrix-org/gomatrixserverlib"
 )
@@ -144,7 +146,7 @@ func (s *thumbnailStatements) selectThumbnails(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectThumbnails: rows.close() failed")
 
 	var thumbnails []*types.ThumbnailMetadata
 	for rows.Next() {

mediaapi/storage/sqlite3/thumbnail_table.go

@@ -20,6 +20,8 @@ import (
 	"database/sql"
 	"time"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/matrix-org/dendrite/mediaapi/types"
 	"github.com/matrix-org/gomatrixserverlib"
 )
@@ -134,7 +136,7 @@ func (s *thumbnailStatements) selectThumbnails(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectThumbnails: rows.close() failed")
 
 	var thumbnails []*types.ThumbnailMetadata
 	for rows.Next() {

publicroomsapi/consumers/roomserver.go

@@ -22,6 +22,7 @@ import (
 	"github.com/matrix-org/dendrite/common/config"
 	"github.com/matrix-org/dendrite/publicroomsapi/storage"
 	"github.com/matrix-org/dendrite/roomserver/api"
+	"github.com/matrix-org/gomatrixserverlib"
 	log "github.com/sirupsen/logrus"
 	sarama "gopkg.in/Shopify/sarama.v1"
 )
@@ -98,5 +99,13 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		return err
 	}
 
-	return s.db.UpdateRoomFromEvents(context.TODO(), addQueryRes.Events, remQueryRes.Events)
+	var addQueryEvents, remQueryEvents []gomatrixserverlib.Event
+	for _, headeredEvent := range addQueryRes.Events {
+		addQueryEvents = append(addQueryEvents, headeredEvent.Event)
+	}
+	for _, headeredEvent := range remQueryRes.Events {
+		remQueryEvents = append(remQueryEvents, headeredEvent.Event)
+	}
+
+	return s.db.UpdateRoomFromEvents(context.TODO(), addQueryEvents, remQueryEvents)
 }

publicroomsapi/storage/postgres/public_rooms_table.go

@@ -21,6 +21,8 @@ import (
 	"errors"
 	"fmt"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/lib/pq"
 	"github.com/matrix-org/dendrite/publicroomsapi/types"
 )
@@ -203,7 +205,7 @@ func (s *publicRoomsStatements) selectPublicRooms(
 	if err != nil {
 		return []types.PublicRoom{}, nil
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectPublicRooms: rows.close() failed")
 
 	rooms := []types.PublicRoom{}
 	for rows.Next() {

roomserver/alias/alias.go

@@ -46,6 +46,10 @@ type RoomserverAliasAPIDatabase interface {
 	// Remove a given room alias.
 	// Returns an error if there was a problem talking to the database.
 	RemoveRoomAlias(ctx context.Context, alias string) error
+	// Look up the room version for a given room.
+	GetRoomVersionForRoom(
+		ctx context.Context, roomID string,
+	) (gomatrixserverlib.RoomVersion, error)
 }
 
 // RoomserverAliasAPI is an implementation of alias.RoomserverAliasAPI
@@ -229,7 +233,7 @@ func (r *RoomserverAliasAPI) sendUpdatedAliasesEvent(
 	// Add auth events
 	authEvents := gomatrixserverlib.NewAuthEvents(nil)
 	for i := range res.StateEvents {
-		err = authEvents.AddEvent(&res.StateEvents[i])
+		err = authEvents.AddEvent(&res.StateEvents[i].Event)
 		if err != nil {
 			return err
 		}
@@ -240,6 +244,11 @@ func (r *RoomserverAliasAPI) sendUpdatedAliasesEvent(
 	}
 	builder.AuthEvents = refs
 
+	roomVersion, err := r.DB.GetRoomVersionForRoom(ctx, roomID)
+	if err != nil {
+		return err
+	}
+
 	// Build the event
 	eventID := fmt.Sprintf("$%s:%s", util.RandomString(16), r.Cfg.Matrix.ServerName)
 	now := time.Now()
@@ -253,7 +262,7 @@ func (r *RoomserverAliasAPI) sendUpdatedAliasesEvent(
 	// Create the request
 	ire := roomserverAPI.InputRoomEvent{
 		Kind:         roomserverAPI.KindNew,
-		Event:        event,
+		Event:        event.Headered(roomVersion),
 		AuthEventIDs: event.AuthEventIDs(),
 		SendAsServer: serverName,
 	}

roomserver/alias/alias_test.go

@@ -22,6 +22,7 @@ import (
 
 	appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
 	roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
+	"github.com/matrix-org/gomatrixserverlib"
 )
 
 type MockRoomserverAliasAPIDatabase struct {
@@ -49,6 +50,12 @@ func (db *MockRoomserverAliasAPIDatabase) GetCreatorIDForAlias(
 	return "", nil
 }
 
+func (db *MockRoomserverAliasAPIDatabase) GetRoomVersionForRoom(
+	ctx context.Context, roomID string,
+) (gomatrixserverlib.RoomVersion, error) {
+	return gomatrixserverlib.RoomVersionV1, nil
+}
+
 // This method needs to change depending on test case
 func (db *MockRoomserverAliasAPIDatabase) GetRoomIDForAlias(
 	ctx context.Context,

roomserver/api/input.go

@@ -51,7 +51,7 @@ type InputRoomEvent struct {
 	// This controls how the event is processed.
 	Kind int `json:"kind"`
 	// The event JSON for the event to add.
-	Event gomatrixserverlib.Event `json:"event"`
+	Event gomatrixserverlib.HeaderedEvent `json:"event"`
 	// List of state event IDs that authenticate this event.
 	// These are likely derived from the "auth_events" JSON key of the event.
 	// But can be different because the "auth_events" key can be incomplete or wrong.
@@ -85,7 +85,7 @@ type TransactionID struct {
 // the usual context a matrix room event would have. We usually do not have
 // access to the events needed to check the event auth rules for the invite.
 type InputInviteEvent struct {
-	Event gomatrixserverlib.Event `json:"event"`
+	Event gomatrixserverlib.HeaderedEvent `json:"event"`
 }
 
 // InputRoomEventsRequest is a request to InputRoomEvents

roomserver/api/output.go

@@ -54,7 +54,7 @@ type OutputEvent struct {
 // prev_events.
 type OutputNewRoomEvent struct {
 	// The Event.
-	Event gomatrixserverlib.Event `json:"event"`
+	Event gomatrixserverlib.HeaderedEvent `json:"event"`
 	// The latest events in the room after this event.
 	// This can be used to set the prev events for new events in the room.
 	// This also can be used to get the full current state after this event.
@@ -117,7 +117,7 @@ type OutputNewRoomEvent struct {
 // tracked separately from the room events themselves.
 type OutputNewInviteEvent struct {
 	// The "m.room.member" invite event.
-	Event gomatrixserverlib.Event `json:"event"`
+	Event gomatrixserverlib.HeaderedEvent `json:"event"`
 }
 
 // An OutputRetireInviteEvent is written whenever an existing invite is no longer

roomserver/api/query.go

@@ -50,7 +50,7 @@ type QueryLatestEventsAndStateResponse struct {
 	// This list will be in an arbitrary order.
 	// These are used to set the auth_events when sending an event.
 	// These are used to check whether the event is allowed.
-	StateEvents []gomatrixserverlib.Event `json:"state_events"`
+	StateEvents []gomatrixserverlib.HeaderedEvent `json:"state_events"`
 	// The depth of the latest events.
 	// This is one greater than the maximum depth of the latest events.
 	// This is used to set the depth when sending an event.
@@ -79,7 +79,7 @@ type QueryStateAfterEventsResponse struct {
 	PrevEventsExist bool `json:"prev_events_exist"`
 	// The state events requested.
 	// This list will be in an arbitrary order.
-	StateEvents []gomatrixserverlib.Event `json:"state_events"`
+	StateEvents []gomatrixserverlib.HeaderedEvent `json:"state_events"`
 }
 
 // QueryEventsByIDRequest is a request to QueryEventsByID
@@ -99,7 +99,7 @@ type QueryEventsByIDResponse struct {
 	// fails to read it from the database then it will fail
 	// the entire request.
 	// This list will be in an arbitrary order.
-	Events []gomatrixserverlib.Event `json:"events"`
+	Events []gomatrixserverlib.HeaderedEvent `json:"events"`
 }
 
 // QueryMembershipForUserRequest is a request to QueryMembership
@@ -186,7 +186,7 @@ type QueryMissingEventsRequest struct {
 // QueryMissingEventsResponse is a response to QueryMissingEvents
 type QueryMissingEventsResponse struct {
 	// Missing events, arbritrary order.
-	Events []gomatrixserverlib.Event `json:"events"`
+	Events []gomatrixserverlib.HeaderedEvent `json:"events"`
 }
 
 // QueryStateAndAuthChainRequest is a request to QueryStateAndAuthChain
@@ -212,8 +212,8 @@ type QueryStateAndAuthChainResponse struct {
 	PrevEventsExist bool `json:"prev_events_exist"`
 	// The state and auth chain events that were requested.
 	// The lists will be in an arbitrary order.
-	StateEvents     []gomatrixserverlib.Event `json:"state_events"`
+	StateEvents     []gomatrixserverlib.HeaderedEvent `json:"state_events"`
-	AuthChainEvents []gomatrixserverlib.Event `json:"auth_chain_events"`
+	AuthChainEvents []gomatrixserverlib.HeaderedEvent `json:"auth_chain_events"`
 }
 
 // QueryBackfillRequest is a request to QueryBackfill.
@@ -229,7 +229,7 @@ type QueryBackfillRequest struct {
 // QueryBackfillResponse is a response to QueryBackfill.
 type QueryBackfillResponse struct {
 	// Missing events, arbritrary order.
-	Events []gomatrixserverlib.Event `json:"events"`
+	Events []gomatrixserverlib.HeaderedEvent `json:"events"`
 }
 
 // QueryServersInRoomAtEventRequest is a request to QueryServersInRoomAtEvent

roomserver/input/events.go

@@ -72,6 +72,10 @@ type RoomEventDatabase interface {
 		ctx context.Context, transactionID string,
 		sessionID int64, userID string,
 	) (string, error)
+	// Look up the room version for a given room.
+	GetRoomVersionForRoom(
+		ctx context.Context, roomID string,
+	) (gomatrixserverlib.RoomVersion, error)
 }
 
 // OutputRoomEventWriter has the APIs needed to write an event to the output logs.
@@ -95,7 +99,7 @@ func processRoomEvent(
 	event := input.Event
 
 	// Check that the event passes authentication checks and work out the numeric IDs for the auth events.
-	authEventNIDs, err := checkAuthEvents(ctx, db, event, input.AuthEventIDs)
+	authEventNIDs, err := checkAuthEvents(ctx, db, event.Event, input.AuthEventIDs)
 	if err != nil {
 		return
 	}
@@ -112,7 +116,7 @@ func processRoomEvent(
 	}
 
 	// Store the event
-	roomNID, stateAtEvent, err := db.StoreEvent(ctx, event, input.TransactionID, authEventNIDs)
+	roomNID, stateAtEvent, err := db.StoreEvent(ctx, event.Event, input.TransactionID, authEventNIDs)
 	if err != nil {
 		return
 	}
@@ -127,7 +131,7 @@ 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)
+		err = calculateAndSetState(ctx, db, input, roomNID, &stateAtEvent, event.Event)
 		if err != nil {
 			return
 		}
@@ -140,7 +144,7 @@ func processRoomEvent(
 
 	// Update the extremities of the event graph for the room
 	return event.EventID(), updateLatestEvents(
-		ctx, db, ow, roomNID, stateAtEvent, event, input.SendAsServer, input.TransactionID,
+		ctx, db, ow, roomNID, stateAtEvent, event.Event, input.SendAsServer, input.TransactionID,
 	)
 }
 
@@ -234,7 +238,7 @@ func processInviteEvent(
 		return nil
 	}
 
-	outputUpdates, err := updateToInviteMembership(updater, &input.Event, nil)
+	outputUpdates, err := updateToInviteMembership(updater, &input.Event.Event, nil)
 	if err != nil {
 		return err
 	}

roomserver/input/latest_events.go

@@ -253,8 +253,13 @@ func (u *latestEventsUpdater) makeOutputNewRoomEvent() (*api.OutputEvent, error)
 		latestEventIDs[i] = u.latest[i].EventID
 	}
 
+	roomVersion, err := u.db.GetRoomVersionForRoom(u.ctx, u.event.RoomID())
+	if err != nil {
+		return nil, err
+	}
+
 	ore := api.OutputNewRoomEvent{
-		Event:           u.event,
+		Event:           u.event.Headered(roomVersion),
 		LastSentEventID: u.lastEventIDSent,
 		LatestEventIDs:  latestEventIDs,
 		TransactionID:   u.transactionID,

roomserver/input/membership.go

@@ -136,13 +136,14 @@ func updateToInviteMembership(
 		return nil, err
 	}
 	if needsSending {
+		roomVersion := gomatrixserverlib.RoomVersionV1
 		// We notify the consumers using a special event even though we will
 		// notify them about the change in current state as part of the normal
 		// room event stream. This ensures that the consumers only have to
 		// consider a single stream of events when determining whether a user
 		// is invited, rather than having to combine multiple streams themselves.
 		onie := api.OutputNewInviteEvent{
-			Event: *add,
+			Event: (*add).Headered(roomVersion),
 		}
 		updates = append(updates, api.OutputEvent{
 			Type:           api.OutputTypeNewInviteEvent,

roomserver/query/query.go

@@ -89,6 +89,10 @@ type RoomserverQueryAPIDatabase interface {
 	EventStateKeys(
 		context.Context, []types.EventStateKeyNID,
 	) (map[types.EventStateKeyNID]string, error)
+	// Look up the room version for a given room.
+	GetRoomVersionForRoom(
+		ctx context.Context, roomID string,
+	) (gomatrixserverlib.RoomVersion, error)
 }
 
 // RoomserverQueryAPI is an implementation of api.RoomserverQueryAPI
@@ -116,6 +120,12 @@ func (r *RoomserverQueryAPI) QueryLatestEventsAndState(
 		return nil
 	}
 	response.RoomExists = true
+
+	roomVersion, err := r.DB.GetRoomVersionForRoom(ctx, request.RoomID)
+	if err != nil {
+		return err
+	}
+
 	var currentStateSnapshotNID types.StateSnapshotNID
 	response.LatestEvents, currentStateSnapshotNID, response.Depth, err =
 		r.DB.LatestEventIDs(ctx, roomNID)
@@ -136,7 +146,10 @@ func (r *RoomserverQueryAPI) QueryLatestEventsAndState(
 		return err
 	}
 
-	response.StateEvents = stateEvents
+	for _, event := range stateEvents {
+		response.StateEvents = append(response.StateEvents, event.Headered(roomVersion))
+	}
+
 	return nil
 }
 
@@ -161,6 +174,11 @@ func (r *RoomserverQueryAPI) QueryStateAfterEvents(
 	}
 	response.RoomExists = true
 
+	roomVersion, err := r.DB.GetRoomVersionForRoom(ctx, request.RoomID)
+	if err != nil {
+		return err
+	}
+
 	prevStates, err := r.DB.StateAtEventIDs(ctx, request.PrevEventIDs)
 	if err != nil {
 		switch err.(type) {
@@ -185,7 +203,10 @@ func (r *RoomserverQueryAPI) QueryStateAfterEvents(
 		return err
 	}
 
-	response.StateEvents = stateEvents
+	for _, event := range stateEvents {
+		response.StateEvents = append(response.StateEvents, event.Headered(roomVersion))
+	}
+
 	return nil
 }
 
@@ -212,7 +233,15 @@ func (r *RoomserverQueryAPI) QueryEventsByID(
 		return err
 	}
 
-	response.Events = events
+	for _, event := range events {
+		roomVersion, verr := r.DB.GetRoomVersionForRoom(ctx, event.RoomID())
+		if verr != nil {
+			return verr
+		}
+
+		response.Events = append(response.Events, event.Headered(roomVersion))
+	}
+
 	return nil
 }
 
@@ -486,10 +515,15 @@ func (r *RoomserverQueryAPI) QueryMissingEvents(
 		return err
 	}
 
-	response.Events = make([]gomatrixserverlib.Event, 0, len(loadedEvents)-len(eventsToFilter))
+	response.Events = make([]gomatrixserverlib.HeaderedEvent, 0, len(loadedEvents)-len(eventsToFilter))
 	for _, event := range loadedEvents {
 		if !eventsToFilter[event.EventID()] {
-			response.Events = append(response.Events, event)
+			roomVersion, verr := r.DB.GetRoomVersionForRoom(ctx, event.RoomID())
+			if verr != nil {
+				return verr
+			}
+
+			response.Events = append(response.Events, event.Headered(roomVersion))
 		}
 	}
 
@@ -525,7 +559,21 @@ func (r *RoomserverQueryAPI) QueryBackfill(
 	}
 
 	// Retrieve events from the list that was filled previously.
-	response.Events, err = r.loadEvents(ctx, resultNIDs)
+	var loadedEvents []gomatrixserverlib.Event
+	loadedEvents, err = r.loadEvents(ctx, resultNIDs)
+	if err != nil {
+		return err
+	}
+
+	for _, event := range loadedEvents {
+		roomVersion, verr := r.DB.GetRoomVersionForRoom(ctx, event.RoomID())
+		if verr != nil {
+			return verr
+		}
+
+		response.Events = append(response.Events, event.Headered(roomVersion))
+	}
+
 	return err
 }
 
@@ -595,12 +643,6 @@ func (r *RoomserverQueryAPI) QueryStateAndAuthChain(
 	request *api.QueryStateAndAuthChainRequest,
 	response *api.QueryStateAndAuthChainResponse,
 ) error {
-	// TODO: get the correct room version
-	roomState, err := state.GetStateResolutionAlgorithm(state.StateResolutionAlgorithmV1, r.DB)
-	if err != nil {
-		return err
-	}
-
 	response.QueryStateAndAuthChainRequest = *request
 	roomNID, err := r.DB.RoomNID(ctx, request.RoomID)
 	if err != nil {
@@ -611,33 +653,67 @@ func (r *RoomserverQueryAPI) QueryStateAndAuthChain(
 	}
 	response.RoomExists = true
 
-	prevStates, err := r.DB.StateAtEventIDs(ctx, request.PrevEventIDs)
+	roomVersion, err := r.DB.GetRoomVersionForRoom(ctx, request.RoomID)
+	if err != nil {
+		return err
+	}
+
+	stateEvents, err := r.loadStateAtEventIDs(ctx, request.PrevEventIDs)
+	if err != nil {
+		return err
+	}
+	response.PrevEventsExist = true
+
+	// add the auth event IDs for the current state events too
+	var authEventIDs []string
+	authEventIDs = append(authEventIDs, request.AuthEventIDs...)
+	for _, se := range stateEvents {
+		authEventIDs = append(authEventIDs, se.AuthEventIDs()...)
+	}
+	authEventIDs = util.UniqueStrings(authEventIDs) // de-dupe
+
+	authEvents, err := getAuthChain(ctx, r.DB, authEventIDs)
+	if err != nil {
+		return err
+	}
+
+	for _, event := range stateEvents {
+		response.StateEvents = append(response.StateEvents, event.Headered(roomVersion))
+	}
+
+	for _, event := range authEvents {
+		response.AuthChainEvents = append(response.AuthChainEvents, event.Headered(roomVersion))
+	}
+
+	return err
+}
+
+func (r *RoomserverQueryAPI) loadStateAtEventIDs(ctx context.Context, eventIDs []string) ([]gomatrixserverlib.Event, error) {
+	// TODO: get the correct room version
+	roomState, err := state.GetStateResolutionAlgorithm(state.StateResolutionAlgorithmV1, r.DB)
+	if err != nil {
+		return nil, err
+	}
+
+	prevStates, err := r.DB.StateAtEventIDs(ctx, eventIDs)
 	if err != nil {
 		switch err.(type) {
 		case types.MissingEventError:
-			return nil
+			return nil, nil
 		default:
-			return err
+			return nil, err
 		}
 	}
-	response.PrevEventsExist = true
 
 	// Look up the currrent state for the requested tuples.
 	stateEntries, err := roomState.LoadCombinedStateAfterEvents(
 		ctx, prevStates,
 	)
 	if err != nil {
-		return err
+		return nil, err
 	}
 
-	stateEvents, err := r.loadStateEvents(ctx, stateEntries)
+	return r.loadStateEvents(ctx, stateEntries)
-	if err != nil {
-		return err
-	}
-
-	response.StateEvents = stateEvents
-	response.AuthChainEvents, err = getAuthChain(ctx, r.DB, request.AuthEventIDs)
-	return err
 }
 
 // getAuthChain fetches the auth chain for the given auth events. An auth chain

roomserver/state/v1/state.go

@@ -366,11 +366,16 @@ func (v StateResolutionV1) loadStateAfterEventsForNumericTuples(
 			// update that key in the result.
 			// If the requested event wasn't a state event then the state after
 			// it is the same as the state before it.
+			set := false
 			for i := range result {
 				if result[i].StateKeyTuple == prevState.StateKeyTuple {
 					result[i] = prevState.StateEntry
+					set = true
 				}
 			}
+			if !set { // no previous state exists for this event: add new state
+				result = append(result, prevState.StateEntry)
+			}
 		}
 		return result, nil
 	}

roomserver/storage/interface.go

@@ -45,5 +45,5 @@ type Database interface {
 	GetMembership(ctx context.Context, roomNID types.RoomNID, requestSenderUserID string) (membershipEventNID types.EventNID, stillInRoom bool, err error)
 	GetMembershipEventNIDsForRoom(ctx context.Context, roomNID types.RoomNID, joinOnly bool) ([]types.EventNID, error)
 	EventsFromIDs(ctx context.Context, eventIDs []string) ([]types.Event, error)
-	GetRoomVersionForRoom(ctx context.Context, roomNID types.RoomNID) (gomatrixserverlib.RoomVersion, error)
+	GetRoomVersionForRoom(ctx context.Context, roomID string) (gomatrixserverlib.RoomVersion, error)
 }

roomserver/storage/postgres/event_json_table.go

@@ -19,6 +19,8 @@ import (
 	"context"
 	"database/sql"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/matrix-org/dendrite/roomserver/types"
 )
 
@@ -86,7 +88,7 @@ func (s *eventJSONStatements) bulkSelectEventJSON(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventJSON: rows.close() failed")
 
 	// We know that we will only get as many results as event NIDs
 	// because of the unique constraint on event NIDs.

roomserver/storage/postgres/event_state_keys_table.go

@@ -114,7 +114,7 @@ func (s *eventStateKeyStatements) bulkSelectEventStateKeyNID(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventStateKeyNID: rows.close() failed")
 
 	result := make(map[string]types.EventStateKeyNID, len(eventStateKeys))
 	for rows.Next() {
@@ -139,7 +139,7 @@ func (s *eventStateKeyStatements) bulkSelectEventStateKey(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventStateKey: rows.close() failed")
 
 	result := make(map[types.EventStateKeyNID]string, len(eventStateKeyNIDs))
 	for rows.Next() {

roomserver/storage/postgres/event_types_table.go

@@ -19,6 +19,8 @@ import (
 	"context"
 	"database/sql"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/lib/pq"
 	"github.com/matrix-org/dendrite/roomserver/types"
 )
@@ -132,7 +134,7 @@ func (s *eventTypeStatements) bulkSelectEventTypeNID(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventTypeNID: rows.close() failed")
 
 	result := make(map[string]types.EventTypeNID, len(eventTypes))
 	for rows.Next() {

roomserver/storage/postgres/events_table.go

@@ -192,7 +192,7 @@ func (s *eventStatements) bulkSelectStateEventByID(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectStateEventByID: rows.close() failed")
 	// We know that we will only get as many results as event IDs
 	// because of the unique constraint on event IDs.
 	// So we can allocate an array of the correct size now.
@@ -235,7 +235,7 @@ func (s *eventStatements) bulkSelectStateAtEventByID(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectStateAtEventByID: rows.close() failed")
 	results := make([]types.StateAtEvent, len(eventIDs))
 	i := 0
 	for ; rows.Next(); i++ {
@@ -302,7 +302,7 @@ func (s *eventStatements) bulkSelectStateAtEventAndReference(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectStateAtEventAndReference: rows.close() failed")
 	results := make([]types.StateAtEventAndReference, len(eventNIDs))
 	i := 0
 	for ; rows.Next(); i++ {
@@ -343,7 +343,7 @@ func (s *eventStatements) bulkSelectEventReference(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventReference: rows.close() failed")
 	results := make([]gomatrixserverlib.EventReference, len(eventNIDs))
 	i := 0
 	for ; rows.Next(); i++ {
@@ -367,7 +367,7 @@ func (s *eventStatements) bulkSelectEventID(ctx context.Context, eventNIDs []typ
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventID: rows.close() failed")
 	results := make(map[types.EventNID]string, len(eventNIDs))
 	i := 0
 	for ; rows.Next(); i++ {
@@ -394,7 +394,7 @@ func (s *eventStatements) bulkSelectEventNID(ctx context.Context, eventIDs []str
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventNID: rows.close() failed")
 	results := make(map[string]types.EventNID, len(eventIDs))
 	for rows.Next() {
 		var eventID string

roomserver/storage/postgres/invite_table.go

@@ -120,7 +120,7 @@ func (s *inviteStatements) updateInviteRetired(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "updateInviteRetired: rows.close() failed")
 
 	var eventIDs []string
 	for rows.Next() {
@@ -144,7 +144,7 @@ func (s *inviteStatements) selectInviteActiveForUserInRoom(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectInviteActiveForUserInRoom: rows.close() failed")
 	var result []types.EventStateKeyNID
 	for rows.Next() {
 		var senderUserNID int64

roomserver/storage/postgres/membership_table.go

@@ -151,7 +151,7 @@ func (s *membershipStatements) selectMembershipsFromRoom(
 	if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectMembershipsFromRoom: rows.close() failed")
 
 	for rows.Next() {
 		var eNID types.EventNID
@@ -172,7 +172,7 @@ func (s *membershipStatements) selectMembershipsFromRoomAndMembership(
 	if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectMembershipsFromRoomAndMembership: rows.close() failed")
 
 	for rows.Next() {
 		var eNID types.EventNID

roomserver/storage/postgres/room_aliases_table.go

@@ -18,6 +18,8 @@ package postgres
 import (
 	"context"
 	"database/sql"
+
+	"github.com/matrix-org/dendrite/common"
 )
 
 const roomAliasesSchema = `
@@ -95,7 +97,7 @@ func (s *roomAliasesStatements) selectAliasesFromRoomID(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectAliasesFromRoomID: rows.close() failed")
 
 	var aliases []string
 	for rows.Next() {

roomserver/storage/postgres/rooms_table.go

@@ -65,8 +65,8 @@ const selectLatestEventNIDsForUpdateSQL = "" +
 const updateLatestEventNIDsSQL = "" +
 	"UPDATE roomserver_rooms SET latest_event_nids = $2, last_event_sent_nid = $3, state_snapshot_nid = $4 WHERE room_nid = $1"
 
-const selectRoomVersionForRoomNIDSQL = "" +
+const selectRoomVersionForRoomIDSQL = "" +
-	"SELECT room_version FROM roomserver_rooms WHERE room_nid = $1"
+	"SELECT room_version FROM roomserver_rooms WHERE room_id = $1"
 
 type roomStatements struct {
 	insertRoomNIDStmt                  *sql.Stmt
@@ -74,7 +74,7 @@ type roomStatements struct {
 	selectLatestEventNIDsStmt          *sql.Stmt
 	selectLatestEventNIDsForUpdateStmt *sql.Stmt
 	updateLatestEventNIDsStmt          *sql.Stmt
-	selectRoomVersionForRoomNIDStmt    *sql.Stmt
+	selectRoomVersionForRoomIDStmt     *sql.Stmt
 }
 
 func (s *roomStatements) prepare(db *sql.DB) (err error) {
@@ -88,7 +88,7 @@ func (s *roomStatements) prepare(db *sql.DB) (err error) {
 		{&s.selectLatestEventNIDsStmt, selectLatestEventNIDsSQL},
 		{&s.selectLatestEventNIDsForUpdateStmt, selectLatestEventNIDsForUpdateSQL},
 		{&s.updateLatestEventNIDsStmt, updateLatestEventNIDsSQL},
-		{&s.selectRoomVersionForRoomNIDStmt, selectRoomVersionForRoomNIDSQL},
+		{&s.selectRoomVersionForRoomIDStmt, selectRoomVersionForRoomIDSQL},
 	}.prepare(db)
 }
 
@@ -165,11 +165,11 @@ func (s *roomStatements) updateLatestEventNIDs(
 	return err
 }
 
-func (s *roomStatements) selectRoomVersionForRoomNID(
+func (s *roomStatements) selectRoomVersionForRoomID(
-	ctx context.Context, txn *sql.Tx, roomNID types.RoomNID,
+	ctx context.Context, txn *sql.Tx, roomID string,
 ) (gomatrixserverlib.RoomVersion, error) {
 	var roomVersion gomatrixserverlib.RoomVersion
-	stmt := common.TxStmt(txn, s.selectRoomVersionForRoomNIDStmt)
+	stmt := common.TxStmt(txn, s.selectRoomVersionForRoomIDStmt)
-	err := stmt.QueryRowContext(ctx, roomNID).Scan(&roomVersion)
+	err := stmt.QueryRowContext(ctx, roomID).Scan(&roomVersion)
 	return roomVersion, err
 }

roomserver/storage/postgres/state_block_table.go

@@ -21,6 +21,8 @@ import (
 	"fmt"
 	"sort"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/lib/pq"
 	"github.com/matrix-org/dendrite/roomserver/types"
 	"github.com/matrix-org/util"
@@ -138,7 +140,7 @@ func (s *stateBlockStatements) bulkSelectStateBlockEntries(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectStateBlockEntries: rows.close() failed")
 
 	results := make([]types.StateEntryList, len(stateBlockNIDs))
 	// current is a pointer to the StateEntryList to append the state entries to.
@@ -197,7 +199,7 @@ func (s *stateBlockStatements) bulkSelectFilteredStateBlockEntries(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectFilteredStateBlockEntries: rows.close() failed")
 
 	var results []types.StateEntryList
 	var current types.StateEntryList

roomserver/storage/postgres/storage.go

@@ -18,6 +18,9 @@ package postgres
 import (
 	"context"
 	"database/sql"
+	"encoding/json"
+
+	roomserverVersion "github.com/matrix-org/dendrite/roomserver/version"
 
 	// Import the postgres database driver.
 	_ "github.com/lib/pq"
@@ -68,8 +71,21 @@ func (d *Database) StoreEvent(
 		}
 	}
 
-	// TODO: Room version here
+	// TODO: Here we should aim to have two different code paths for new rooms
-	if roomNID, err = d.assignRoomNID(ctx, nil, event.RoomID(), "1"); err != nil {
+	// vs existing ones.
+
+	// Get the default room version. If the client doesn't supply a room_version
+	// then we will use our configured default to create the room.
+	// https://matrix.org/docs/spec/client_server/r0.6.0#post-matrix-client-r0-createroom
+	// Note that the below logic depends on the m.room.create event being the
+	// first event that is persisted to the database when creating or joining a
+	// room.
+	var roomVersion gomatrixserverlib.RoomVersion
+	if roomVersion, err = extractRoomVersionFromCreateEvent(event); err != nil {
+		return 0, types.StateAtEvent{}, err
+	}
+
+	if roomNID, err = d.assignRoomNID(ctx, nil, event.RoomID(), roomVersion); err != nil {
 		return 0, types.StateAtEvent{}, err
 	}
 
@@ -121,6 +137,29 @@ func (d *Database) StoreEvent(
 	}, nil
 }
 
+func extractRoomVersionFromCreateEvent(event gomatrixserverlib.Event) (
+	gomatrixserverlib.RoomVersion, error,
+) {
+	var err error
+	var roomVersion gomatrixserverlib.RoomVersion
+	// Look for m.room.create events.
+	if event.Type() != gomatrixserverlib.MRoomCreate {
+		return gomatrixserverlib.RoomVersion(""), nil
+	}
+	roomVersion = roomserverVersion.DefaultRoomVersion()
+	var createContent gomatrixserverlib.CreateContent
+	// The m.room.create event contains an optional "room_version" key in
+	// the event content, so we need to unmarshal that first.
+	if err = json.Unmarshal(event.Content(), &createContent); err != nil {
+		return gomatrixserverlib.RoomVersion(""), err
+	}
+	// A room version was specified in the event content?
+	if createContent.RoomVersion != nil {
+		roomVersion = *createContent.RoomVersion
+	}
+	return roomVersion, err
+}
+
 func (d *Database) assignRoomNID(
 	ctx context.Context, txn *sql.Tx,
 	roomID string, roomVersion gomatrixserverlib.RoomVersion,
@@ -701,10 +740,10 @@ func (d *Database) EventsFromIDs(ctx context.Context, eventIDs []string) ([]type
 }
 
 func (d *Database) GetRoomVersionForRoom(
-	ctx context.Context, roomNID types.RoomNID,
+	ctx context.Context, roomID string,
 ) (gomatrixserverlib.RoomVersion, error) {
-	return d.statements.selectRoomVersionForRoomNID(
+	return d.statements.selectRoomVersionForRoomID(
-		ctx, nil, roomNID,
+		ctx, nil, roomID,
 	)
 }
 

roomserver/storage/sqlite3/event_json_table.go

@@ -88,7 +88,7 @@ func (s *eventJSONStatements) bulkSelectEventJSON(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventJSON: rows.close() failed")
 
 	// We know that we will only get as many results as event NIDs
 	// because of the unique constraint on event NIDs.

roomserver/storage/sqlite3/event_state_keys_table.go

@@ -116,7 +116,7 @@ func (s *eventStateKeyStatements) bulkSelectEventStateKeyNID(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventStateKeyNID: rows.close() failed")
 	result := make(map[string]types.EventStateKeyNID, len(eventStateKeys))
 	for rows.Next() {
 		var stateKey string
@@ -142,7 +142,7 @@ func (s *eventStateKeyStatements) bulkSelectEventStateKey(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventStateKey: rows.close() failed")
 	result := make(map[types.EventStateKeyNID]string, len(eventStateKeyNIDs))
 	for rows.Next() {
 		var stateKey string

roomserver/storage/sqlite3/event_types_table.go

@@ -138,7 +138,7 @@ func (s *eventTypeStatements) bulkSelectEventTypeNID(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventTypeNID: rows.close() failed")
 
 	result := make(map[string]types.EventTypeNID, len(eventTypes))
 	for rows.Next() {

roomserver/storage/sqlite3/events_table.go

@@ -194,7 +194,7 @@ func (s *eventStatements) bulkSelectStateEventByID(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectStateEventByID: rows.close() failed")
 	// We know that we will only get as many results as event IDs
 	// because of the unique constraint on event IDs.
 	// So we can allocate an array of the correct size now.
@@ -247,7 +247,7 @@ func (s *eventStatements) bulkSelectStateAtEventByID(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectStateAtEventByID: rows.close() failed")
 	results := make([]types.StateAtEvent, len(eventIDs))
 	i := 0
 	for ; rows.Next(); i++ {
@@ -323,7 +323,7 @@ func (s *eventStatements) bulkSelectStateAtEventAndReference(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectStateAtEventAndReference: rows.close() failed")
 	results := make([]types.StateAtEventAndReference, len(eventNIDs))
 	i := 0
 	for ; rows.Next(); i++ {
@@ -374,7 +374,7 @@ func (s *eventStatements) bulkSelectEventReference(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventReference: rows.close() failed")
 	results := make([]gomatrixserverlib.EventReference, len(eventNIDs))
 	i := 0
 	for ; rows.Next(); i++ {
@@ -408,7 +408,7 @@ func (s *eventStatements) bulkSelectEventID(ctx context.Context, txn *sql.Tx, ev
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventID: rows.close() failed")
 	results := make(map[types.EventNID]string, len(eventNIDs))
 	i := 0
 	for ; rows.Next(); i++ {
@@ -445,7 +445,7 @@ func (s *eventStatements) bulkSelectEventNID(ctx context.Context, txn *sql.Tx, e
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectEventNID: rows.close() failed")
 	results := make(map[string]types.EventNID, len(eventIDs))
 	for rows.Next() {
 		var eventID string

roomserver/storage/sqlite3/invite_table.go

@@ -137,7 +137,7 @@ func (s *inviteStatements) selectInviteActiveForUserInRoom(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectInviteActiveForUserInRoom: rows.close() failed")
 	var result []types.EventStateKeyNID
 	for rows.Next() {
 		var senderUserNID int64

roomserver/storage/sqlite3/membership_table.go

@@ -134,7 +134,7 @@ func (s *membershipStatements) selectMembershipsFromRoom(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectMembershipsFromRoom: rows.close() failed")
 
 	for rows.Next() {
 		var eNID types.EventNID
@@ -154,7 +154,7 @@ func (s *membershipStatements) selectMembershipsFromRoomAndMembership(
 	if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectMembershipsFromRoomAndMembership: rows.close() failed")
 
 	for rows.Next() {
 		var eNID types.EventNID

roomserver/storage/sqlite3/room_aliases_table.go

@@ -103,7 +103,7 @@ func (s *roomAliasesStatements) selectAliasesFromRoomID(
 		return
 	}
 
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectAliasesFromRoomID: rows.close() failed")
 
 	for rows.Next() {
 		var alias string

roomserver/storage/sqlite3/rooms_table.go

@@ -54,8 +54,8 @@ const selectLatestEventNIDsForUpdateSQL = "" +
 const updateLatestEventNIDsSQL = "" +
 	"UPDATE roomserver_rooms SET latest_event_nids = $1, last_event_sent_nid = $2, state_snapshot_nid = $3 WHERE room_nid = $4"
 
-const selectRoomVersionForRoomNIDSQL = "" +
+const selectRoomVersionForRoomIDSQL = "" +
-	"SELECT room_version FROM roomserver_rooms WHERE room_nid = $1"
+	"SELECT room_version FROM roomserver_rooms WHERE room_id = $1"
 
 type roomStatements struct {
 	insertRoomNIDStmt                  *sql.Stmt
@@ -63,7 +63,7 @@ type roomStatements struct {
 	selectLatestEventNIDsStmt          *sql.Stmt
 	selectLatestEventNIDsForUpdateStmt *sql.Stmt
 	updateLatestEventNIDsStmt          *sql.Stmt
-	selectRoomVersionForRoomNIDStmt    *sql.Stmt
+	selectRoomVersionForRoomIDStmt     *sql.Stmt
 }
 
 func (s *roomStatements) prepare(db *sql.DB) (err error) {
@@ -77,7 +77,7 @@ func (s *roomStatements) prepare(db *sql.DB) (err error) {
 		{&s.selectLatestEventNIDsStmt, selectLatestEventNIDsSQL},
 		{&s.selectLatestEventNIDsForUpdateStmt, selectLatestEventNIDsForUpdateSQL},
 		{&s.updateLatestEventNIDsStmt, updateLatestEventNIDsSQL},
-		{&s.selectRoomVersionForRoomNIDStmt, selectRoomVersionForRoomNIDSQL},
+		{&s.selectRoomVersionForRoomIDStmt, selectRoomVersionForRoomIDSQL},
 	}.prepare(db)
 }
 
@@ -157,11 +157,11 @@ func (s *roomStatements) updateLatestEventNIDs(
 	return err
 }
 
-func (s *roomStatements) selectRoomVersionForRoomNID(
+func (s *roomStatements) selectRoomVersionForRoomID(
-	ctx context.Context, txn *sql.Tx, roomNID types.RoomNID,
+	ctx context.Context, txn *sql.Tx, roomID string,
 ) (gomatrixserverlib.RoomVersion, error) {
 	var roomVersion gomatrixserverlib.RoomVersion
-	stmt := common.TxStmt(txn, s.selectRoomVersionForRoomNIDStmt)
+	stmt := common.TxStmt(txn, s.selectRoomVersionForRoomIDStmt)
-	err := stmt.QueryRowContext(ctx, roomNID).Scan(&roomVersion)
+	err := stmt.QueryRowContext(ctx, roomID).Scan(&roomVersion)
 	return roomVersion, err
 }

roomserver/storage/sqlite3/state_block_table.go

@@ -137,7 +137,7 @@ func (s *stateBlockStatements) bulkSelectStateBlockEntries(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectStateBlockEntries: rows.close() failed")
 
 	results := make([]types.StateEntryList, len(stateBlockNIDs))
 	// current is a pointer to the StateEntryList to append the state entries to.
@@ -207,7 +207,7 @@ func (s *stateBlockStatements) bulkSelectFilteredStateBlockEntries(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectFilteredStateBlockEntries: rows.close() failed")
 
 	var results []types.StateEntryList
 	var current types.StateEntryList

roomserver/storage/sqlite3/state_snapshot_table.go

@@ -99,7 +99,7 @@ func (s *stateSnapshotStatements) bulkSelectStateBlockNIDs(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "bulkSelectStateBlockNIDs: rows.close() failed")
 	results := make([]types.StateBlockNIDList, len(stateNIDs))
 	i := 0
 	for ; rows.Next(); i++ {

roomserver/storage/sqlite3/storage.go

@@ -18,9 +18,12 @@ package sqlite3
 import (
 	"context"
 	"database/sql"
+	"encoding/json"
 	"errors"
 	"net/url"
 
+	roomserverVersion "github.com/matrix-org/dendrite/roomserver/version"
+
 	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/dendrite/roomserver/types"
@@ -90,8 +93,21 @@ func (d *Database) StoreEvent(
 			}
 		}
 
-		// TODO: Room version here
+		// TODO: Here we should aim to have two different code paths for new rooms
-		if roomNID, err = d.assignRoomNID(ctx, txn, event.RoomID(), "1"); err != nil {
+		// vs existing ones.
+
+		// Get the default room version. If the client doesn't supply a room_version
+		// then we will use our configured default to create the room.
+		// https://matrix.org/docs/spec/client_server/r0.6.0#post-matrix-client-r0-createroom
+		// Note that the below logic depends on the m.room.create event being the
+		// first event that is persisted to the database when creating or joining a
+		// room.
+		var roomVersion gomatrixserverlib.RoomVersion
+		if roomVersion, err = extractRoomVersionFromCreateEvent(event); err != nil {
+			return err
+		}
+
+		if roomNID, err = d.assignRoomNID(ctx, txn, event.RoomID(), roomVersion); err != nil {
 			return err
 		}
 
@@ -150,6 +166,29 @@ func (d *Database) StoreEvent(
 	}, nil
 }
 
+func extractRoomVersionFromCreateEvent(event gomatrixserverlib.Event) (
+	gomatrixserverlib.RoomVersion, error,
+) {
+	var err error
+	var roomVersion gomatrixserverlib.RoomVersion
+	// Look for m.room.create events.
+	if event.Type() != gomatrixserverlib.MRoomCreate {
+		return gomatrixserverlib.RoomVersion(""), nil
+	}
+	roomVersion = roomserverVersion.DefaultRoomVersion()
+	var createContent gomatrixserverlib.CreateContent
+	// The m.room.create event contains an optional "room_version" key in
+	// the event content, so we need to unmarshal that first.
+	if err = json.Unmarshal(event.Content(), &createContent); err != nil {
+		return gomatrixserverlib.RoomVersion(""), err
+	}
+	// A room version was specified in the event content?
+	if createContent.RoomVersion != nil {
+		roomVersion = *createContent.RoomVersion
+	}
+	return roomVersion, err
+}
+
 func (d *Database) assignRoomNID(
 	ctx context.Context, txn *sql.Tx,
 	roomID string, roomVersion gomatrixserverlib.RoomVersion,
@@ -855,10 +894,10 @@ func (d *Database) EventsFromIDs(ctx context.Context, eventIDs []string) ([]type
 }
 
 func (d *Database) GetRoomVersionForRoom(
-	ctx context.Context, roomNID types.RoomNID,
+	ctx context.Context, roomID string,
 ) (gomatrixserverlib.RoomVersion, error) {
-	return d.statements.selectRoomVersionForRoomNID(
+	return d.statements.selectRoomVersionForRoomID(
-		ctx, nil, roomNID,
+		ctx, nil, roomID,
 	)
 }
 

syncapi/consumers/roomserver.go

@@ -98,7 +98,7 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 func (s *OutputRoomEventConsumer) onNewRoomEvent(
 	ctx context.Context, msg api.OutputNewRoomEvent,
 ) error {
-	ev := msg.Event
+	ev := msg.Event.Event
 	log.WithFields(log.Fields{
 		"event_id": ev.EventID(),
 		"room_id":  ev.RoomID(),
@@ -153,7 +153,7 @@ func (s *OutputRoomEventConsumer) onNewRoomEvent(
 func (s *OutputRoomEventConsumer) onNewInviteEvent(
 	ctx context.Context, msg api.OutputNewInviteEvent,
 ) error {
-	pduPos, err := s.db.AddInviteEvent(ctx, msg.Event)
+	pduPos, err := s.db.AddInviteEvent(ctx, msg.Event.Event)
 	if err != nil {
 		// panic rather than continue with an inconsistent database
 		log.WithFields(log.Fields{
@@ -163,7 +163,7 @@ func (s *OutputRoomEventConsumer) onNewInviteEvent(
 		}).Panicf("roomserver output log: write invite failure")
 		return nil
 	}
-	s.notifier.OnNewEvent(&msg.Event, "", nil, types.PaginationToken{PDUPosition: pduPos})
+	s.notifier.OnNewEvent(&msg.Event.Event, "", nil, types.PaginationToken{PDUPosition: pduPos})
 	return nil
 }
 
@@ -229,7 +229,10 @@ func (s *OutputRoomEventConsumer) lookupStateEvents(
 		return nil, err
 	}
 
-	result = append(result, eventResp.Events...)
+	for _, headeredEvent := range eventResp.Events {
+		result = append(result, headeredEvent.Event)
+	}
+
 	missing = missingEventsFrom(result, addsStateEventIDs)
 
 	if len(missing) != 0 {
@@ -250,7 +253,7 @@ func (s *OutputRoomEventConsumer) updateStateEvent(event gomatrixserverlib.Event
 	}
 
 	prevEvent, err := s.db.GetStateEvent(
-		context.TODO(), event.Type(), event.RoomID(), stateKey,
+		context.TODO(), event.RoomID(), event.Type(), stateKey,
 	)
 	if err != nil {
 		return event, err

syncapi/storage/postgres/account_data_table.go

@@ -118,7 +118,7 @@ func (s *accountDataStatements) selectAccountDataInRange(
 	if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectAccountDataInRange: rows.close() failed")
 
 	for rows.Next() {
 		var dataType string

syncapi/storage/postgres/backward_extremities_table.go

@@ -17,6 +17,8 @@ package postgres
 import (
 	"context"
 	"database/sql"
+
+	"github.com/matrix-org/dendrite/common"
 )
 
 const backwardExtremitiesSchema = `
@@ -91,7 +93,7 @@ func (s *backwardExtremitiesStatements) selectBackwardExtremitiesForRoom(
 	if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectBackwardExtremitiesForRoom: rows.close() failed")
 
 	for rows.Next() {
 		var eID string

syncapi/storage/postgres/current_room_state_table.go

@@ -140,7 +140,7 @@ func (s *currentRoomStateStatements) selectJoinedUsers(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectJoinedUsers: rows.close() failed")
 
 	result := make(map[string][]string)
 	for rows.Next() {
@@ -168,7 +168,7 @@ func (s *currentRoomStateStatements) selectRoomIDsWithMembership(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectRoomIDsWithMembership: rows.close() failed")
 
 	var result []string
 	for rows.Next() {
@@ -198,7 +198,7 @@ func (s *currentRoomStateStatements) selectCurrentState(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectCurrentState: rows.close() failed")
 
 	return rowsToEvents(rows)
 }
@@ -248,7 +248,7 @@ func (s *currentRoomStateStatements) selectEventsWithEventIDs(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectEventsWithEventIDs: rows.close() failed")
 	return rowsToStreamEvents(rows)
 }
 

syncapi/storage/postgres/invites_table.go

@@ -115,7 +115,7 @@ func (s *inviteEventsStatements) selectInviteEventsInRange(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectInviteEventsInRange: rows.close() failed")
 	result := map[string]gomatrixserverlib.Event{}
 	for rows.Next() {
 		var (

syncapi/storage/postgres/output_room_events_table.go

@@ -169,7 +169,7 @@ func (s *outputRoomEventsStatements) selectStateInRange(
 	if err != nil {
 		return nil, nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectStateInRange: rows.close() failed")
 	// Fetch all the state change events for all rooms between the two positions then loop each event and:
 	//  - Keep a cache of the event by ID (99% of state change events are for the event itself)
 	//  - For each room ID, build up an array of event IDs which represents cumulative adds/removes
@@ -303,7 +303,7 @@ func (s *outputRoomEventsStatements) selectRecentEvents(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectRecentEvents: rows.close() failed")
 	events, err := rowsToStreamEvents(rows)
 	if err != nil {
 		return nil, err
@@ -330,7 +330,7 @@ func (s *outputRoomEventsStatements) selectEarlyEvents(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectEarlyEvents: rows.close() failed")
 	events, err := rowsToStreamEvents(rows)
 	if err != nil {
 		return nil, err
@@ -354,7 +354,7 @@ func (s *outputRoomEventsStatements) selectEvents(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectEvents: rows.close() failed")
 	return rowsToStreamEvents(rows)
 }
 

syncapi/storage/postgres/output_room_events_topology_table.go

@@ -18,6 +18,8 @@ import (
 	"context"
 	"database/sql"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/matrix-org/dendrite/syncapi/types"
 	"github.com/matrix-org/gomatrixserverlib"
 )
@@ -134,7 +136,7 @@ func (s *outputRoomEventsTopologyStatements) selectEventIDsInRange(
 	} else if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectEventIDsInRange: rows.close() failed")
 
 	// Return the IDs.
 	var eventID string
@@ -177,7 +179,7 @@ func (s *outputRoomEventsTopologyStatements) selectEventIDsFromPosition(
 	} else if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectEventIDsFromPosition: rows.close() failed")
 	// Return the IDs.
 	var eventID string
 	for rows.Next() {

syncapi/storage/sqlite3/account_data_table.go

@@ -19,6 +19,8 @@ import (
 	"context"
 	"database/sql"
 
+	"github.com/matrix-org/dendrite/common"
+
 	"github.com/matrix-org/dendrite/syncapi/types"
 	"github.com/matrix-org/gomatrixserverlib"
 )
@@ -102,7 +104,7 @@ func (s *accountDataStatements) selectAccountDataInRange(
 	if err != nil {
 		return
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectAccountDataInRange: rows.close() failed")
 
 	var entries int
 

syncapi/storage/sqlite3/current_room_state_table.go

@@ -126,7 +126,7 @@ func (s *currentRoomStateStatements) selectJoinedUsers(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectJoinedUsers: rows.close() failed")
 
 	result := make(map[string][]string)
 	for rows.Next() {
@@ -154,7 +154,7 @@ func (s *currentRoomStateStatements) selectRoomIDsWithMembership(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectRoomIDsWithMembership: rows.close() failed")
 
 	var result []string
 	for rows.Next() {
@@ -184,7 +184,7 @@ func (s *currentRoomStateStatements) selectCurrentState(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectCurrentState: rows.close() failed")
 
 	return rowsToEvents(rows)
 }
@@ -238,7 +238,7 @@ func (s *currentRoomStateStatements) selectEventsWithEventIDs(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectEventsWithEventIDs: rows.close() failed")
 	return rowsToStreamEvents(rows)
 }
 

syncapi/storage/sqlite3/invites_table.go

@@ -113,7 +113,7 @@ func (s *inviteEventsStatements) selectInviteEventsInRange(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectInviteEventsInRange: rows.close() failed")
 	result := map[string]gomatrixserverlib.Event{}
 	for rows.Next() {
 		var (

syncapi/storage/sqlite3/output_room_events_table.go

@@ -160,6 +160,7 @@ func (s *outputRoomEventsStatements) selectStateInRange(
 	if err != nil {
 		return nil, nil, err
 	}
+	defer rows.Close() // nolint: errcheck
 	// Fetch all the state change events for all rooms between the two positions then loop each event and:
 	//  - Keep a cache of the event by ID (99% of state change events are for the event itself)
 	//  - For each room ID, build up an array of event IDs which represents cumulative adds/removes
@@ -315,7 +316,7 @@ func (s *outputRoomEventsStatements) selectRecentEvents(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectRecentEvents: rows.close() failed")
 	events, err := rowsToStreamEvents(rows)
 	if err != nil {
 		return nil, err
@@ -342,7 +343,7 @@ func (s *outputRoomEventsStatements) selectEarlyEvents(
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close() // nolint: errcheck
+	defer common.CloseAndLogIfError(ctx, rows, "selectEarlyEvents: rows.close() failed")
 	events, err := rowsToStreamEvents(rows)
 	if err != nil {
 		return nil, err
@@ -371,7 +372,7 @@ func (s *outputRoomEventsStatements) selectEvents(
 		if streamEvents, err := rowsToStreamEvents(rows); err == nil {
 			returnEvents = append(returnEvents, streamEvents...)
 		}
-		rows.Close() // nolint: errcheck
+		common.CloseAndLogIfError(ctx, rows, "selectEvents: rows.close() failed")
 	}
 	return returnEvents, nil
 }

sytest-whitelist

@@ -104,12 +104,6 @@ Newly banned rooms appear in the leave section of incremental sync
 Newly banned rooms appear in the leave section of incremental sync
 local user can join room with version 1
 User can invite local user to room with version 1
-local user can join room with version 2
-User can invite local user to room with version 2
-local user can join room with version 3
-User can invite local user to room with version 3
-local user can join room with version 4
-User can invite local user to room with version 4
 Should reject keys claiming to belong to a different user
 Can add account data
 Can add account data to room
@@ -140,8 +134,6 @@ Changing the actions of an unknown rule fails with 404
 Enabling an unknown default rule fails with 404
 Trying to get push rules with unknown rule_id fails with 404
 Events come down the correct room
-local user can join room with version 5
-User can invite local user to room with version 5
 # SyTest currently only implements the v1 endpoints for /send_join and /send_leave,
 # whereas Dendrite only supports the v2 endpoints for those, so let's ignore this
 # test for now.
@@ -198,10 +190,6 @@ Local non-members don't see posted message events
 Remote room members also see posted message events
 Lazy loading parameters in the filter are strictly boolean
 remote user can join room with version 1
-remote user can join room with version 2
-remote user can join room with version 3
-remote user can join room with version 4
-remote user can join room with version 5
 Inbound federation can query room alias directory
 Outbound federation can query v2 /send_join
 Inbound federation can receive v2 /send_join