Merge branch 'main' of github.com:matrix-org/dendrite into s7evink/userapitests

federationapi/internal/perform.go

@@ -75,7 +75,7 @@ func (r *FederationInternalAPI) PerformJoin(
 	seenSet := make(map[gomatrixserverlib.ServerName]bool)
 	var uniqueList []gomatrixserverlib.ServerName
 	for _, srv := range request.ServerNames {
-		if seenSet[srv] {
+		if seenSet[srv] || srv == r.cfg.Matrix.ServerName {
 			continue
 		}
 		seenSet[srv] = true

keyserver/internal/cross_signing.go

@@ -362,6 +362,13 @@ func (a *KeyInternalAPI) processSelfSignatures(
 		for targetKeyID, signature := range forTargetUserID {
 			switch sig := signature.CrossSigningBody.(type) {
 			case *gomatrixserverlib.CrossSigningKey:
+				for keyID := range sig.Keys {
+					split := strings.SplitN(string(keyID), ":", 2)
+					if len(split) > 1 && gomatrixserverlib.KeyID(split[1]) == targetKeyID {
+						targetKeyID = keyID // contains the ed25519: or other scheme
+						break
+					}
+				}
 				for originUserID, forOriginUserID := range sig.Signatures {
 					for originKeyID, originSig := range forOriginUserID {
 						if err := a.DB.StoreCrossSigningSigsForTarget(

keyserver/storage/postgres/cross_signing_sigs_table.go

@@ -33,8 +33,10 @@ CREATE TABLE IF NOT EXISTS keyserver_cross_signing_sigs (
 	target_user_id TEXT NOT NULL,
 	target_key_id TEXT NOT NULL,
 	signature TEXT NOT NULL,
-	PRIMARY KEY (origin_user_id, target_user_id, target_key_id)
+	PRIMARY KEY (origin_user_id, origin_key_id, target_user_id, target_key_id)
 );
+
+CREATE INDEX IF NOT EXISTS keyserver_cross_signing_sigs_idx ON keyserver_cross_signing_sigs (origin_user_id, target_user_id, target_key_id);
 `
 
 const selectCrossSigningSigsForTargetSQL = "" +
@@ -44,7 +46,7 @@ const selectCrossSigningSigsForTargetSQL = "" +
 const upsertCrossSigningSigsForTargetSQL = "" +
 	"INSERT INTO keyserver_cross_signing_sigs (origin_user_id, origin_key_id, target_user_id, target_key_id, signature)" +
 	" VALUES($1, $2, $3, $4, $5)" +
-	" ON CONFLICT (origin_user_id, target_user_id, target_key_id) DO UPDATE SET (origin_key_id, signature) = ($2, $5)"
+	" ON CONFLICT (origin_user_id, origin_key_id, target_user_id, target_key_id) DO UPDATE SET signature = $5"
 
 const deleteCrossSigningSigsForTargetSQL = "" +
 	"DELETE FROM keyserver_cross_signing_sigs WHERE target_user_id=$1 AND target_key_id=$2"

keyserver/storage/postgres/deltas/2022042612000000_xsigning_idx.go

@@ -0,0 +1,52 @@
+// Copyright 2022 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package deltas
+
+import (
+	"database/sql"
+	"fmt"
+
+	"github.com/matrix-org/dendrite/internal/sqlutil"
+)
+
+func LoadFixCrossSigningSignatureIndexes(m *sqlutil.Migrations) {
+	m.AddMigration(UpFixCrossSigningSignatureIndexes, DownFixCrossSigningSignatureIndexes)
+}
+
+func UpFixCrossSigningSignatureIndexes(tx *sql.Tx) error {
+	_, err := tx.Exec(`
+		ALTER TABLE keyserver_cross_signing_sigs DROP CONSTRAINT keyserver_cross_signing_sigs_pkey;
+		ALTER TABLE keyserver_cross_signing_sigs ADD PRIMARY KEY (origin_user_id, origin_key_id, target_user_id, target_key_id);
+
+		CREATE INDEX IF NOT EXISTS keyserver_cross_signing_sigs_idx ON keyserver_cross_signing_sigs (origin_user_id, target_user_id, target_key_id);
+	`)
+	if err != nil {
+		return fmt.Errorf("failed to execute upgrade: %w", err)
+	}
+	return nil
+}
+
+func DownFixCrossSigningSignatureIndexes(tx *sql.Tx) error {
+	_, err := tx.Exec(`
+		ALTER TABLE keyserver_cross_signing_sigs DROP CONSTRAINT keyserver_cross_signing_sigs_pkey;
+		ALTER TABLE keyserver_cross_signing_sigs ADD PRIMARY KEY (origin_user_id, target_user_id, target_key_id);
+
+		DROP INDEX IF EXISTS keyserver_cross_signing_sigs_idx;
+	`)
+	if err != nil {
+		return fmt.Errorf("failed to execute downgrade: %w", err)
+	}
+	return nil
+}

keyserver/storage/postgres/storage.go

@@ -54,6 +54,7 @@ func NewDatabase(dbProperties *config.DatabaseOptions) (*shared.Database, error)
 	}
 	m := sqlutil.NewMigrations()
 	deltas.LoadRefactorKeyChanges(m)
+	deltas.LoadFixCrossSigningSignatureIndexes(m)
 	if err = m.RunDeltas(db, dbProperties); err != nil {
 		return nil, err
 	}

keyserver/storage/sqlite3/cross_signing_sigs_table.go

@@ -33,8 +33,10 @@ CREATE TABLE IF NOT EXISTS keyserver_cross_signing_sigs (
 	target_user_id TEXT NOT NULL,
 	target_key_id TEXT NOT NULL,
 	signature TEXT NOT NULL,
-	PRIMARY KEY (origin_user_id, target_user_id, target_key_id)
+	PRIMARY KEY (origin_user_id, origin_key_id, target_user_id, target_key_id)
 );
+
+CREATE INDEX IF NOT EXISTS keyserver_cross_signing_sigs_idx ON keyserver_cross_signing_sigs (origin_user_id, target_user_id, target_key_id);
 `
 
 const selectCrossSigningSigsForTargetSQL = "" +

keyserver/storage/sqlite3/deltas/2022042612000000_xsigning_idx.go

@@ -0,0 +1,76 @@
+// Copyright 2022 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package deltas
+
+import (
+	"database/sql"
+	"fmt"
+
+	"github.com/matrix-org/dendrite/internal/sqlutil"
+)
+
+func LoadFixCrossSigningSignatureIndexes(m *sqlutil.Migrations) {
+	m.AddMigration(UpFixCrossSigningSignatureIndexes, DownFixCrossSigningSignatureIndexes)
+}
+
+func UpFixCrossSigningSignatureIndexes(tx *sql.Tx) error {
+	_, err := tx.Exec(`
+		CREATE TABLE IF NOT EXISTS keyserver_cross_signing_sigs_tmp (
+			origin_user_id TEXT NOT NULL,
+			origin_key_id TEXT NOT NULL,
+			target_user_id TEXT NOT NULL,
+			target_key_id TEXT NOT NULL,
+			signature TEXT NOT NULL,
+			PRIMARY KEY (origin_user_id, origin_key_id, target_user_id, target_key_id)
+		);
+
+		INSERT INTO keyserver_cross_signing_sigs_tmp (origin_user_id, origin_key_id, target_user_id, target_key_id, signature)
+			SELECT origin_user_id, origin_key_id, target_user_id, target_key_id, signature FROM keyserver_cross_signing_sigs;
+
+		DROP TABLE keyserver_cross_signing_sigs;
+		ALTER TABLE keyserver_cross_signing_sigs_tmp RENAME TO keyserver_cross_signing_sigs;
+
+		CREATE INDEX IF NOT EXISTS keyserver_cross_signing_sigs_idx ON keyserver_cross_signing_sigs (origin_user_id, target_user_id, target_key_id);
+	`)
+	if err != nil {
+		return fmt.Errorf("failed to execute upgrade: %w", err)
+	}
+	return nil
+}
+
+func DownFixCrossSigningSignatureIndexes(tx *sql.Tx) error {
+	_, err := tx.Exec(`
+		CREATE TABLE IF NOT EXISTS keyserver_cross_signing_sigs_tmp (
+			origin_user_id TEXT NOT NULL,
+			origin_key_id TEXT NOT NULL,
+			target_user_id TEXT NOT NULL,
+			target_key_id TEXT NOT NULL,
+			signature TEXT NOT NULL,
+			PRIMARY KEY (origin_user_id, target_user_id, target_key_id)
+		);
+
+		INSERT INTO keyserver_cross_signing_sigs_tmp (origin_user_id, origin_key_id, target_user_id, target_key_id, signature)
+			SELECT origin_user_id, origin_key_id, target_user_id, target_key_id, signature FROM keyserver_cross_signing_sigs;
+
+		DROP TABLE keyserver_cross_signing_sigs;
+		ALTER TABLE keyserver_cross_signing_sigs_tmp RENAME TO keyserver_cross_signing_sigs;
+		
+		DELETE INDEX IF EXISTS keyserver_cross_signing_sigs_idx;
+	`)
+	if err != nil {
+		return fmt.Errorf("failed to execute downgrade: %w", err)
+	}
+	return nil
+}

keyserver/storage/sqlite3/storage.go

@@ -53,6 +53,7 @@ func NewDatabase(dbProperties *config.DatabaseOptions) (*shared.Database, error)
 
 	m := sqlutil.NewMigrations()
 	deltas.LoadRefactorKeyChanges(m)
+	deltas.LoadFixCrossSigningSignatureIndexes(m)
 	if err = m.RunDeltas(db, dbProperties); err != nil {
 		return nil, err
 	}

syncapi/consumers/presence.go

@@ -88,6 +88,11 @@ func (s *PresenceConsumer) Start() error {
 			}
 			return
 		}
+		if presence == nil {
+			presence = &types.PresenceInternal{
+				UserID: userID,
+			}
+		}
 
 		deviceRes := api.QueryDevicesResponse{}
 		if err = s.deviceAPI.QueryDevices(s.ctx, &api.QueryDevicesRequest{UserID: userID}, &deviceRes); err != nil {
@@ -106,7 +111,9 @@ func (s *PresenceConsumer) Start() error {
 
 		m.Header.Set(jetstream.UserID, presence.UserID)
 		m.Header.Set("presence", presence.ClientFields.Presence)
-		m.Header.Set("status_msg", *presence.ClientFields.StatusMsg)
+		if presence.ClientFields.StatusMsg != nil {
+			m.Header.Set("status_msg", *presence.ClientFields.StatusMsg)
+		}
 		m.Header.Set("last_active_ts", strconv.Itoa(int(presence.LastActiveTS)))
 
 		if err = msg.RespondMsg(m); err != nil {

syncapi/routing/filter.go

@@ -44,8 +44,8 @@ func GetFilter(
 		return jsonerror.InternalServerError()
 	}
 
-	filter, err := syncDB.GetFilter(req.Context(), localpart, filterID)
+	filter := gomatrixserverlib.DefaultFilter()
-	if err != nil {
+	if err := syncDB.GetFilter(req.Context(), &filter, localpart, filterID); err != nil {
 		//TODO better error handling. This error message is *probably* right,
 		// but if there are obscure db errors, this will also be returned,
 		// even though it is not correct.

syncapi/storage/interface.go

@@ -81,7 +81,7 @@ type Database interface {
 	// Returns a map following the format data[roomID] = []dataTypes
 	// If no data is retrieved, returns an empty map
 	// If there was an issue with the retrieval, returns an error
-	GetAccountDataInRange(ctx context.Context, userID string, r types.Range, accountDataFilterPart *gomatrixserverlib.EventFilter) (map[string][]string, error)
+	GetAccountDataInRange(ctx context.Context, userID string, r types.Range, accountDataFilterPart *gomatrixserverlib.EventFilter) (map[string][]string, types.StreamPosition, error)
 	// UpsertAccountData keeps track of new or updated account data, by saving the type
 	// of the new/updated data, and the user ID and room ID the data is related to (empty)
 	// room ID means the data isn't specific to any room)
@@ -125,10 +125,10 @@ type Database interface {
 	// CleanSendToDeviceUpdates removes all send-to-device messages BEFORE the specified
 	// from position, preventing the send-to-device table from growing indefinitely.
 	CleanSendToDeviceUpdates(ctx context.Context, userID, deviceID string, before types.StreamPosition) (err error)
-	// GetFilter looks up the filter associated with a given local user and filter ID.
+	// GetFilter looks up the filter associated with a given local user and filter ID
-	// Returns a filter structure. Otherwise returns an error if no such filter exists
+	// and populates the target filter. Otherwise returns an error if no such filter exists
 	// or if there was an error talking to the database.
-	GetFilter(ctx context.Context, localpart string, filterID string) (*gomatrixserverlib.Filter, error)
+	GetFilter(ctx context.Context, target *gomatrixserverlib.Filter, localpart string, filterID string) error
 	// PutFilter puts the passed filter into the database.
 	// Returns the filterID as a string. Otherwise returns an error if something
 	// goes wrong.

syncapi/storage/postgres/account_data_table.go

@@ -57,7 +57,7 @@ const insertAccountDataSQL = "" +
 	" RETURNING id"
 
 const selectAccountDataInRangeSQL = "" +
-	"SELECT room_id, type FROM syncapi_account_data_type" +
+	"SELECT id, room_id, type FROM syncapi_account_data_type" +
 	" WHERE user_id = $1 AND id > $2 AND id <= $3" +
 	" AND ( $4::text[] IS NULL OR     type LIKE ANY($4)  )" +
 	" AND ( $5::text[] IS NULL OR NOT(type LIKE ANY($5)) )" +
@@ -103,8 +103,9 @@ func (s *accountDataStatements) SelectAccountDataInRange(
 	userID string,
 	r types.Range,
 	accountDataEventFilter *gomatrixserverlib.EventFilter,
-) (data map[string][]string, err error) {
+) (data map[string][]string, pos types.StreamPosition, err error) {
 	data = make(map[string][]string)
+	pos = r.Low()
 
 	rows, err := s.selectAccountDataInRangeStmt.QueryContext(ctx, userID, r.Low(), r.High(),
 		pq.StringArray(filterConvertTypeWildcardToSQL(accountDataEventFilter.Types)),
@@ -116,11 +117,12 @@ func (s *accountDataStatements) SelectAccountDataInRange(
 	}
 	defer internal.CloseAndLogIfError(ctx, rows, "selectAccountDataInRange: rows.close() failed")
 
-	for rows.Next() {
+	var dataType string
-		var dataType string
+	var roomID string
-		var roomID string
+	var id types.StreamPosition
 
-		if err = rows.Scan(&roomID, &dataType); err != nil {
+	for rows.Next() {
+		if err = rows.Scan(&id, &roomID, &dataType); err != nil {
 			return
 		}
 
@@ -129,8 +131,11 @@ func (s *accountDataStatements) SelectAccountDataInRange(
 		} else {
 			data[roomID] = []string{dataType}
 		}
+		if id > pos {
+			pos = id
+		}
 	}
-	return data, rows.Err()
+	return data, pos, rows.Err()
 }
 
 func (s *accountDataStatements) SelectMaxAccountDataID(

syncapi/storage/postgres/filter_table.go

@@ -73,21 +73,20 @@ func NewPostgresFilterTable(db *sql.DB) (tables.Filter, error) {
 }
 
 func (s *filterStatements) SelectFilter(
-	ctx context.Context, localpart string, filterID string,
+	ctx context.Context, target *gomatrixserverlib.Filter, localpart string, filterID string,
-) (*gomatrixserverlib.Filter, error) {
+) error {
 	// Retrieve filter from database (stored as canonical JSON)
 	var filterData []byte
 	err := s.selectFilterStmt.QueryRowContext(ctx, localpart, filterID).Scan(&filterData)
 	if err != nil {
-		return nil, err
+		return err
 	}
 
 	// Unmarshal JSON into Filter struct
-	filter := gomatrixserverlib.DefaultFilter()
+	if err = json.Unmarshal(filterData, &target); err != nil {
-	if err = json.Unmarshal(filterData, &filter); err != nil {
+		return err
-		return nil, err
 	}
-	return &filter, nil
+	return nil
 }
 
 func (s *filterStatements) InsertFilter(

syncapi/storage/postgres/presence_table.go

@@ -127,6 +127,9 @@ func (p *presenceStatements) GetPresenceForUser(
 	}
 	stmt := sqlutil.TxStmt(txn, p.selectPresenceForUsersStmt)
 	err := stmt.QueryRowContext(ctx, userID).Scan(&result.Presence, &result.ClientFields.StatusMsg, &result.LastActiveTS)
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
 	result.ClientFields.Presence = result.Presence.String()
 	return result, err
 }

syncapi/storage/shared/syncserver.go

@@ -265,7 +265,7 @@ func (d *Database) DeletePeeks(
 func (d *Database) GetAccountDataInRange(
 	ctx context.Context, userID string, r types.Range,
 	accountDataFilterPart *gomatrixserverlib.EventFilter,
-) (map[string][]string, error) {
+) (map[string][]string, types.StreamPosition, error) {
 	return d.AccountData.SelectAccountDataInRange(ctx, userID, r, accountDataFilterPart)
 }
 
@@ -513,9 +513,9 @@ func (d *Database) StreamToTopologicalPosition(
 }
 
 func (d *Database) GetFilter(
-	ctx context.Context, localpart string, filterID string,
+	ctx context.Context, target *gomatrixserverlib.Filter, localpart string, filterID string,
-) (*gomatrixserverlib.Filter, error) {
+) error {
-	return d.Filter.SelectFilter(ctx, localpart, filterID)
+	return d.Filter.SelectFilter(ctx, target, localpart, filterID)
 }
 
 func (d *Database) PutFilter(

syncapi/storage/sqlite3/account_data_table.go

@@ -43,7 +43,7 @@ const insertAccountDataSQL = "" +
 
 // further parameters are added by prepareWithFilters
 const selectAccountDataInRangeSQL = "" +
-	"SELECT room_id, type FROM syncapi_account_data_type" +
+	"SELECT id, room_id, type FROM syncapi_account_data_type" +
 	" WHERE user_id = $1 AND id > $2 AND id <= $3"
 
 const selectMaxAccountDataIDSQL = "" +
@@ -95,7 +95,8 @@ func (s *accountDataStatements) SelectAccountDataInRange(
 	userID string,
 	r types.Range,
 	filter *gomatrixserverlib.EventFilter,
-) (data map[string][]string, err error) {
+) (data map[string][]string, pos types.StreamPosition, err error) {
+	pos = r.Low()
 	data = make(map[string][]string)
 	stmt, params, err := prepareWithFilters(
 		s.db, nil, selectAccountDataInRangeSQL,
@@ -112,11 +113,12 @@ func (s *accountDataStatements) SelectAccountDataInRange(
 	}
 	defer internal.CloseAndLogIfError(ctx, rows, "selectAccountDataInRange: rows.close() failed")
 
-	for rows.Next() {
+	var dataType string
-		var dataType string
+	var roomID string
-		var roomID string
+	var id types.StreamPosition
 
-		if err = rows.Scan(&roomID, &dataType); err != nil {
+	for rows.Next() {
+		if err = rows.Scan(&id, &roomID, &dataType); err != nil {
 			return
 		}
 
@@ -125,9 +127,12 @@ func (s *accountDataStatements) SelectAccountDataInRange(
 		} else {
 			data[roomID] = []string{dataType}
 		}
+		if id > pos {
+			pos = id
+		}
 	}
 
-	return data, nil
+	return data, pos, nil
 }
 
 func (s *accountDataStatements) SelectMaxAccountDataID(

syncapi/storage/sqlite3/filter_table.go

@@ -77,21 +77,20 @@ func NewSqliteFilterTable(db *sql.DB) (tables.Filter, error) {
 }
 
 func (s *filterStatements) SelectFilter(
-	ctx context.Context, localpart string, filterID string,
+	ctx context.Context, target *gomatrixserverlib.Filter, localpart string, filterID string,
-) (*gomatrixserverlib.Filter, error) {
+) error {
 	// Retrieve filter from database (stored as canonical JSON)
 	var filterData []byte
 	err := s.selectFilterStmt.QueryRowContext(ctx, localpart, filterID).Scan(&filterData)
 	if err != nil {
-		return nil, err
+		return err
 	}
 
 	// Unmarshal JSON into Filter struct
-	filter := gomatrixserverlib.DefaultFilter()
+	if err = json.Unmarshal(filterData, &target); err != nil {
-	if err = json.Unmarshal(filterData, &filter); err != nil {
+		return err
-		return nil, err
 	}
-	return &filter, nil
+	return nil
 }
 
 func (s *filterStatements) InsertFilter(

syncapi/storage/sqlite3/presence_table.go

@@ -142,6 +142,9 @@ func (p *presenceStatements) GetPresenceForUser(
 	}
 	stmt := sqlutil.TxStmt(txn, p.selectPresenceForUsersStmt)
 	err := stmt.QueryRowContext(ctx, userID).Scan(&result.Presence, &result.ClientFields.StatusMsg, &result.LastActiveTS)
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
 	result.ClientFields.Presence = result.Presence.String()
 	return result, err
 }

syncapi/storage/tables/interface.go

@@ -27,7 +27,7 @@ import (
 type AccountData interface {
 	InsertAccountData(ctx context.Context, txn *sql.Tx, userID, roomID, dataType string) (pos types.StreamPosition, err error)
 	// SelectAccountDataInRange returns a map of room ID to a list of `dataType`.
-	SelectAccountDataInRange(ctx context.Context, userID string, r types.Range, accountDataEventFilter *gomatrixserverlib.EventFilter) (data map[string][]string, err error)
+	SelectAccountDataInRange(ctx context.Context, userID string, r types.Range, accountDataEventFilter *gomatrixserverlib.EventFilter) (data map[string][]string, pos types.StreamPosition, err error)
 	SelectMaxAccountDataID(ctx context.Context, txn *sql.Tx) (id int64, err error)
 }
 
@@ -157,7 +157,7 @@ type SendToDevice interface {
 }
 
 type Filter interface {
-	SelectFilter(ctx context.Context, localpart string, filterID string) (*gomatrixserverlib.Filter, error)
+	SelectFilter(ctx context.Context, target *gomatrixserverlib.Filter, localpart string, filterID string) error
 	InsertFilter(ctx context.Context, filter *gomatrixserverlib.Filter, localpart string) (filterID string, err error)
 }
 

syncapi/streams/stream_accountdata.go

@@ -43,7 +43,7 @@ func (p *AccountDataStreamProvider) IncrementalSync(
 		To:   to,
 	}
 
-	dataTypes, err := p.DB.GetAccountDataInRange(
+	dataTypes, pos, err := p.DB.GetAccountDataInRange(
 		ctx, req.Device.UserID, r, &req.Filter.AccountData,
 	)
 	if err != nil {
@@ -53,6 +53,12 @@ func (p *AccountDataStreamProvider) IncrementalSync(
 
 	// Iterate over the rooms
 	for roomID, dataTypes := range dataTypes {
+		// For a complete sync, make sure we're only including this room if
+		// that room was present in the joined rooms.
+		if from == 0 && roomID != "" && !req.IsRoomPresent(roomID) {
+			continue
+		}
+
 		// Request the missing data from the database
 		for _, dataType := range dataTypes {
 			dataReq := userapi.QueryAccountDataRequest{
@@ -95,5 +101,5 @@ func (p *AccountDataStreamProvider) IncrementalSync(
 		}
 	}
 
-	return to
+	return pos
 }

syncapi/streams/stream_presence.go

@@ -16,7 +16,6 @@ package streams
 
 import (
 	"context"
-	"database/sql"
 	"encoding/json"
 	"sync"
 
@@ -80,11 +79,10 @@ func (p *PresenceStreamProvider) IncrementalSync(
 				if _, ok := presences[roomUsers[i]]; ok {
 					continue
 				}
+				// Bear in mind that this might return nil, but at least populating
+				// a nil means that there's a map entry so we won't repeat this call.
 				presences[roomUsers[i]], err = p.DB.GetPresence(ctx, roomUsers[i])
 				if err != nil {
-					if err == sql.ErrNoRows {
-						continue
-					}
 					req.Log.WithError(err).Error("unable to query presence for user")
 					return from
 				}
@@ -93,8 +91,10 @@ func (p *PresenceStreamProvider) IncrementalSync(
 	}
 
 	lastPos := to
-	for i := range presences {
+	for _, presence := range presences {
-		presence := presences[i]
+		if presence == nil {
+			continue
+		}
 		// Ignore users we don't share a room with
 		if req.Device.UserID != presence.UserID && !p.notifier.IsSharedUser(req.Device.UserID, presence.UserID) {
 			continue

syncapi/streams/stream_receipt.go

@@ -62,6 +62,12 @@ func (p *ReceiptStreamProvider) IncrementalSync(
 	}
 
 	for roomID, receipts := range receiptsByRoom {
+		// For a complete sync, make sure we're only including this room if
+		// that room was present in the joined rooms.
+		if from == 0 && !req.IsRoomPresent(roomID) {
+			continue
+		}
+
 		jr := *types.NewJoinResponse()
 		if existing, ok := req.Response.Rooms.Join[roomID]; ok {
 			jr = existing

syncapi/sync/request.go

@@ -18,6 +18,7 @@ import (
 	"database/sql"
 	"encoding/json"
 	"fmt"
+	"math"
 	"net/http"
 	"strconv"
 	"time"
@@ -47,6 +48,13 @@ func newSyncRequest(req *http.Request, device userapi.Device, syncDB storage.Dat
 	}
 	// TODO: read from stored filters too
 	filter := gomatrixserverlib.DefaultFilter()
+	if since.IsEmpty() {
+		// Send as much account data down for complete syncs as possible
+		// by default, otherwise clients do weird things while waiting
+		// for the rest of the data to trickle down.
+		filter.AccountData.Limit = math.MaxInt32
+		filter.Room.AccountData.Limit = math.MaxInt32
+	}
 	filterQuery := req.URL.Query().Get("filter")
 	if filterQuery != "" {
 		if filterQuery[0] == '{' {
@@ -61,11 +69,9 @@ func newSyncRequest(req *http.Request, device userapi.Device, syncDB storage.Dat
 				util.GetLogger(req.Context()).WithError(err).Error("gomatrixserverlib.SplitID failed")
 				return nil, fmt.Errorf("gomatrixserverlib.SplitID: %w", err)
 			}
-			if f, err := syncDB.GetFilter(req.Context(), localpart, filterQuery); err != nil && err != sql.ErrNoRows {
+			if err := syncDB.GetFilter(req.Context(), &filter, localpart, filterQuery); err != nil && err != sql.ErrNoRows {
 				util.GetLogger(req.Context()).WithError(err).Error("syncDB.GetFilter failed")
 				return nil, fmt.Errorf("syncDB.GetFilter: %w", err)
-			} else if f != nil {
-				filter = *f
 			}
 		}
 	}

syncapi/sync/requestpool.go

@@ -127,14 +127,23 @@ func (rp *RequestPool) updatePresence(db storage.Presence, presence string, user
 	if !ok { // this should almost never happen
 		return
 	}
+
 	newPresence := types.PresenceInternal{
-		ClientFields: types.PresenceClientResponse{
-			Presence: presenceID.String(),
-		},
 		Presence:     presenceID,
 		UserID:       userID,
 		LastActiveTS: gomatrixserverlib.AsTimestamp(time.Now()),
 	}
+
+	// ensure we also send the current status_msg to federated servers and not nil
+	dbPresence, err := db.GetPresence(context.Background(), userID)
+	if err != nil && err != sql.ErrNoRows {
+		return
+	}
+	if dbPresence != nil {
+		newPresence.ClientFields = dbPresence.ClientFields
+	}
+	newPresence.ClientFields.Presence = presenceID.String()
+
 	defer rp.presence.Store(userID, newPresence)
 	// avoid spamming presence updates when syncing
 	existingPresence, ok := rp.presence.LoadOrStore(userID, newPresence)
@@ -145,13 +154,7 @@ func (rp *RequestPool) updatePresence(db storage.Presence, presence string, user
 		}
 	}
 
-	// ensure we also send the current status_msg to federated servers and not nil
+	if err := rp.producer.SendPresence(userID, presenceID, newPresence.ClientFields.StatusMsg); err != nil {
-	dbPresence, err := db.GetPresence(context.Background(), userID)
-	if err != nil && err != sql.ErrNoRows {
-		return
-	}
-
-	if err := rp.producer.SendPresence(userID, presenceID, dbPresence.ClientFields.StatusMsg); err != nil {
 		logrus.WithError(err).Error("Unable to publish presence message from sync")
 		return
 	}

syncapi/types/provider.go

@@ -25,6 +25,23 @@ type SyncRequest struct {
 	IgnoredUsers IgnoredUsers
 }
 
+func (r *SyncRequest) IsRoomPresent(roomID string) bool {
+	membership, ok := r.Rooms[roomID]
+	if !ok {
+		return false
+	}
+	switch membership {
+	case gomatrixserverlib.Join:
+		return true
+	case gomatrixserverlib.Invite:
+		return true
+	case gomatrixserverlib.Peek:
+		return true
+	default:
+		return false
+	}
+}
+
 type StreamProvider interface {
 	Setup()
 

sytest-whitelist

@@ -681,8 +681,6 @@ GET /presence/:user_id/status fetches initial status
 PUT /presence/:user_id/status updates my presence
 Presence change reports an event to myself
 Existing members see new members' presence
-#Existing members see new member's presence
-Newly joined room includes presence in incremental sync
 Get presence for newly joined members in incremental sync
 User sees their own presence in a sync
 User sees updates to presence from other users in the incremental sync.