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dendrite/roomserver/storage/sqlite3/membership_table.go
Till 081f5e7226
Update database migrations, remove goose (#2264)
* Add new db migration

* Update migrations
Remove goose

* Add possibility to test direct upgrades

* Try to fix WASM test

* Add checks for specific migrations

* Remove AddMigration
Use WithTransaction
Add Dendrite version to table

* Fix linter issues

* Update tests

* Update comments, outdent if

* Namespace migrations

* Add direct upgrade tests, skipping over one version

* Split migrations

* Update go version in CI

* Fix copy&paste mistake

* Use contexts in migrations

Co-authored-by: kegsay <kegan@matrix.org>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
2022-07-25 10:39:22 +01:00

409 lines
15 KiB
Go

// Copyright 2017-2018 New Vector Ltd
// Copyright 2019-2020 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 sqlite3
import (
"context"
"database/sql"
"fmt"
"strings"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/roomserver/storage/sqlite3/deltas"
"github.com/matrix-org/dendrite/roomserver/storage/tables"
"github.com/matrix-org/dendrite/roomserver/types"
"github.com/matrix-org/gomatrixserverlib"
)
const membershipSchema = `
CREATE TABLE IF NOT EXISTS roomserver_membership (
room_nid INTEGER NOT NULL,
target_nid INTEGER NOT NULL,
sender_nid INTEGER NOT NULL DEFAULT 0,
membership_nid INTEGER NOT NULL DEFAULT 1,
event_nid INTEGER NOT NULL DEFAULT 0,
target_local BOOLEAN NOT NULL DEFAULT false,
forgotten BOOLEAN NOT NULL DEFAULT false,
UNIQUE (room_nid, target_nid)
);
`
var selectJoinedUsersSetForRoomsAndUserSQL = "" +
"SELECT target_nid, COUNT(room_nid) FROM roomserver_membership" +
" WHERE room_nid IN ($1) AND target_nid IN ($2) AND" +
" membership_nid = " + fmt.Sprintf("%d", tables.MembershipStateJoin) + " and forgotten = false" +
" GROUP BY target_nid"
var selectJoinedUsersSetForRoomsSQL = "" +
"SELECT target_nid, COUNT(room_nid) FROM roomserver_membership" +
" WHERE room_nid IN ($1) AND " +
" membership_nid = " + fmt.Sprintf("%d", tables.MembershipStateJoin) + " and forgotten = false" +
" GROUP BY target_nid"
// Insert a row in to membership table so that it can be locked by the
// SELECT FOR UPDATE
const insertMembershipSQL = "" +
"INSERT INTO roomserver_membership (room_nid, target_nid, target_local)" +
" VALUES ($1, $2, $3)" +
" ON CONFLICT DO NOTHING"
const selectMembershipFromRoomAndTargetSQL = "" +
"SELECT membership_nid, event_nid, forgotten FROM roomserver_membership" +
" WHERE room_nid = $1 AND event_nid != 0 AND target_nid = $2"
const selectMembershipsFromRoomAndMembershipSQL = "" +
"SELECT event_nid FROM roomserver_membership" +
" WHERE room_nid = $1 AND event_nid != 0 AND membership_nid = $2 and forgotten = false"
const selectLocalMembershipsFromRoomAndMembershipSQL = "" +
"SELECT event_nid FROM roomserver_membership" +
" WHERE room_nid = $1 AND event_nid != 0 AND membership_nid = $2" +
" AND target_local = true and forgotten = false"
const selectMembershipsFromRoomSQL = "" +
"SELECT event_nid FROM roomserver_membership" +
" WHERE room_nid = $1 AND event_nid != 0 and forgotten = false"
const selectLocalMembershipsFromRoomSQL = "" +
"SELECT event_nid FROM roomserver_membership" +
" WHERE room_nid = $1 AND event_nid != 0" +
" AND target_local = true and forgotten = false"
const selectMembershipForUpdateSQL = "" +
"SELECT membership_nid FROM roomserver_membership" +
" WHERE room_nid = $1 AND target_nid = $2"
const updateMembershipSQL = "" +
"UPDATE roomserver_membership SET sender_nid = $1, membership_nid = $2, event_nid = $3, forgotten = $4" +
" WHERE room_nid = $5 AND target_nid = $6"
const updateMembershipForgetRoom = "" +
"UPDATE roomserver_membership SET forgotten = $1" +
" WHERE room_nid = $2 AND target_nid = $3"
const selectRoomsWithMembershipSQL = "" +
"SELECT room_nid FROM roomserver_membership WHERE membership_nid = $1 AND target_nid = $2 and forgotten = false"
// selectKnownUsersSQL uses a sub-select statement here to find rooms that the user is
// joined to. Since this information is used to populate the user directory, we will
// only return users that the user would ordinarily be able to see anyway.
var selectKnownUsersSQL = "" +
"SELECT DISTINCT event_state_key FROM roomserver_membership INNER JOIN roomserver_event_state_keys ON " +
"roomserver_membership.target_nid = roomserver_event_state_keys.event_state_key_nid" +
" WHERE room_nid IN (" +
" SELECT DISTINCT room_nid FROM roomserver_membership WHERE target_nid=$1 AND membership_nid = " + fmt.Sprintf("%d", tables.MembershipStateJoin) +
") AND membership_nid = " + fmt.Sprintf("%d", tables.MembershipStateJoin) + " AND event_state_key LIKE $2 LIMIT $3"
// selectLocalServerInRoomSQL is an optimised case for checking if we, the local server,
// are in the room by using the target_local column of the membership table. Normally when
// we want to know if a server is in a room, we have to unmarshal the entire room state which
// is expensive. The presence of a single row from this query suggests we're still in the
// room, no rows returned suggests we aren't.
const selectLocalServerInRoomSQL = "" +
"SELECT room_nid FROM roomserver_membership WHERE target_local = 1 AND membership_nid = $1 AND room_nid = $2 LIMIT 1"
// selectServerMembersInRoomSQL is an optimised case for checking for server members in a room.
// The JOIN is significantly leaner than the previous case of looking up event NIDs and reading the
// membership events from the database, as the JOIN query amounts to little more than two index
// scans which are very fast. The presence of a single row from this query suggests the server is
// in the room, no rows returned suggests they aren't.
const selectServerInRoomSQL = "" +
"SELECT room_nid FROM roomserver_membership" +
" JOIN roomserver_event_state_keys ON roomserver_membership.target_nid = roomserver_event_state_keys.event_state_key_nid" +
" WHERE membership_nid = $1 AND room_nid = $2 AND event_state_key LIKE '%:' || $3 LIMIT 1"
const deleteMembershipSQL = "" +
"DELETE FROM roomserver_membership WHERE room_nid = $1 AND target_nid = $2"
type membershipStatements struct {
db *sql.DB
insertMembershipStmt *sql.Stmt
selectMembershipForUpdateStmt *sql.Stmt
selectMembershipFromRoomAndTargetStmt *sql.Stmt
selectMembershipsFromRoomAndMembershipStmt *sql.Stmt
selectLocalMembershipsFromRoomAndMembershipStmt *sql.Stmt
selectMembershipsFromRoomStmt *sql.Stmt
selectLocalMembershipsFromRoomStmt *sql.Stmt
selectRoomsWithMembershipStmt *sql.Stmt
updateMembershipStmt *sql.Stmt
selectKnownUsersStmt *sql.Stmt
updateMembershipForgetRoomStmt *sql.Stmt
selectLocalServerInRoomStmt *sql.Stmt
selectServerInRoomStmt *sql.Stmt
deleteMembershipStmt *sql.Stmt
}
func CreateMembershipTable(db *sql.DB) error {
_, err := db.Exec(membershipSchema)
if err != nil {
return err
}
m := sqlutil.NewMigrator(db)
m.AddMigrations(sqlutil.Migration{
Version: "roomserver: add forgotten column",
Up: deltas.UpAddForgottenColumn,
})
return m.Up(context.Background())
}
func PrepareMembershipTable(db *sql.DB) (tables.Membership, error) {
s := &membershipStatements{
db: db,
}
return s, sqlutil.StatementList{
{&s.insertMembershipStmt, insertMembershipSQL},
{&s.selectMembershipForUpdateStmt, selectMembershipForUpdateSQL},
{&s.selectMembershipFromRoomAndTargetStmt, selectMembershipFromRoomAndTargetSQL},
{&s.selectMembershipsFromRoomAndMembershipStmt, selectMembershipsFromRoomAndMembershipSQL},
{&s.selectLocalMembershipsFromRoomAndMembershipStmt, selectLocalMembershipsFromRoomAndMembershipSQL},
{&s.selectMembershipsFromRoomStmt, selectMembershipsFromRoomSQL},
{&s.selectLocalMembershipsFromRoomStmt, selectLocalMembershipsFromRoomSQL},
{&s.updateMembershipStmt, updateMembershipSQL},
{&s.selectRoomsWithMembershipStmt, selectRoomsWithMembershipSQL},
{&s.selectKnownUsersStmt, selectKnownUsersSQL},
{&s.updateMembershipForgetRoomStmt, updateMembershipForgetRoom},
{&s.selectLocalServerInRoomStmt, selectLocalServerInRoomSQL},
{&s.selectServerInRoomStmt, selectServerInRoomSQL},
{&s.deleteMembershipStmt, deleteMembershipSQL},
}.Prepare(db)
}
func (s *membershipStatements) InsertMembership(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
localTarget bool,
) error {
stmt := sqlutil.TxStmt(txn, s.insertMembershipStmt)
_, err := stmt.ExecContext(ctx, roomNID, targetUserNID, localTarget)
return err
}
func (s *membershipStatements) SelectMembershipForUpdate(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
) (membership tables.MembershipState, err error) {
stmt := sqlutil.TxStmt(txn, s.selectMembershipForUpdateStmt)
err = stmt.QueryRowContext(
ctx, roomNID, targetUserNID,
).Scan(&membership)
return
}
func (s *membershipStatements) SelectMembershipFromRoomAndTarget(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
) (eventNID types.EventNID, membership tables.MembershipState, forgotten bool, err error) {
stmt := sqlutil.TxStmt(txn, s.selectMembershipFromRoomAndTargetStmt)
err = stmt.QueryRowContext(
ctx, roomNID, targetUserNID,
).Scan(&membership, &eventNID, &forgotten)
return
}
func (s *membershipStatements) SelectMembershipsFromRoom(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, localOnly bool,
) (eventNIDs []types.EventNID, err error) {
var selectStmt *sql.Stmt
if localOnly {
selectStmt = s.selectLocalMembershipsFromRoomStmt
} else {
selectStmt = s.selectMembershipsFromRoomStmt
}
selectStmt = sqlutil.TxStmt(txn, selectStmt)
rows, err := selectStmt.QueryContext(ctx, roomNID)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "selectMembershipsFromRoom: rows.close() failed")
var eNID types.EventNID
for rows.Next() {
if err = rows.Scan(&eNID); err != nil {
return
}
eventNIDs = append(eventNIDs, eNID)
}
return
}
func (s *membershipStatements) SelectMembershipsFromRoomAndMembership(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, membership tables.MembershipState, localOnly bool,
) (eventNIDs []types.EventNID, err error) {
var stmt *sql.Stmt
if localOnly {
stmt = s.selectLocalMembershipsFromRoomAndMembershipStmt
} else {
stmt = s.selectMembershipsFromRoomAndMembershipStmt
}
stmt = sqlutil.TxStmt(txn, stmt)
rows, err := stmt.QueryContext(ctx, roomNID, membership)
if err != nil {
return
}
defer internal.CloseAndLogIfError(ctx, rows, "selectMembershipsFromRoomAndMembership: rows.close() failed")
var eNID types.EventNID
for rows.Next() {
if err = rows.Scan(&eNID); err != nil {
return
}
eventNIDs = append(eventNIDs, eNID)
}
return
}
func (s *membershipStatements) UpdateMembership(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID, senderUserNID types.EventStateKeyNID, membership tables.MembershipState,
eventNID types.EventNID, forgotten bool,
) (bool, error) {
stmt := sqlutil.TxStmt(txn, s.updateMembershipStmt)
res, err := stmt.ExecContext(
ctx, senderUserNID, membership, eventNID, forgotten, roomNID, targetUserNID,
)
if err != nil {
return false, err
}
rows, err := res.RowsAffected()
return rows > 0, err
}
func (s *membershipStatements) SelectRoomsWithMembership(
ctx context.Context, txn *sql.Tx, userID types.EventStateKeyNID, membershipState tables.MembershipState,
) ([]types.RoomNID, error) {
stmt := sqlutil.TxStmt(txn, s.selectRoomsWithMembershipStmt)
rows, err := stmt.QueryContext(ctx, membershipState, userID)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "SelectRoomsWithMembership: rows.close() failed")
var roomNIDs []types.RoomNID
var roomNID types.RoomNID
for rows.Next() {
if err := rows.Scan(&roomNID); err != nil {
return nil, err
}
roomNIDs = append(roomNIDs, roomNID)
}
return roomNIDs, nil
}
func (s *membershipStatements) SelectJoinedUsersSetForRooms(ctx context.Context, txn *sql.Tx, roomNIDs []types.RoomNID, userNIDs []types.EventStateKeyNID) (map[types.EventStateKeyNID]int, error) {
params := make([]interface{}, 0, len(roomNIDs)+len(userNIDs))
for _, v := range roomNIDs {
params = append(params, v)
}
for _, v := range userNIDs {
params = append(params, v)
}
query := strings.Replace(selectJoinedUsersSetForRoomsSQL, "($1)", sqlutil.QueryVariadic(len(roomNIDs)), 1)
if len(userNIDs) > 0 {
query = strings.Replace(selectJoinedUsersSetForRoomsAndUserSQL, "($1)", sqlutil.QueryVariadic(len(roomNIDs)), 1)
query = strings.Replace(query, "($2)", sqlutil.QueryVariadicOffset(len(userNIDs), len(roomNIDs)), 1)
}
var rows *sql.Rows
var err error
if txn != nil {
rows, err = txn.QueryContext(ctx, query, params...)
} else {
rows, err = s.db.QueryContext(ctx, query, params...)
}
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "selectJoinedUsersSetForRooms: rows.close() failed")
result := make(map[types.EventStateKeyNID]int)
var userID types.EventStateKeyNID
var count int
for rows.Next() {
if err := rows.Scan(&userID, &count); err != nil {
return nil, err
}
result[userID] = count
}
return result, rows.Err()
}
func (s *membershipStatements) SelectKnownUsers(ctx context.Context, txn *sql.Tx, userID types.EventStateKeyNID, searchString string, limit int) ([]string, error) {
stmt := sqlutil.TxStmt(txn, s.selectKnownUsersStmt)
rows, err := stmt.QueryContext(ctx, userID, fmt.Sprintf("%%%s%%", searchString), limit)
if err != nil {
return nil, err
}
result := []string{}
defer internal.CloseAndLogIfError(ctx, rows, "SelectKnownUsers: rows.close() failed")
var resUserID string
for rows.Next() {
if err := rows.Scan(&resUserID); err != nil {
return nil, err
}
result = append(result, resUserID)
}
return result, rows.Err()
}
func (s *membershipStatements) UpdateForgetMembership(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
forget bool,
) error {
_, err := sqlutil.TxStmt(txn, s.updateMembershipForgetRoomStmt).ExecContext(
ctx, forget, roomNID, targetUserNID,
)
return err
}
func (s *membershipStatements) SelectLocalServerInRoom(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID) (bool, error) {
var nid types.RoomNID
stmt := sqlutil.TxStmt(txn, s.selectLocalServerInRoomStmt)
err := stmt.QueryRowContext(ctx, tables.MembershipStateJoin, roomNID).Scan(&nid)
if err != nil {
if err == sql.ErrNoRows {
return false, nil
}
return false, err
}
found := nid > 0
return found, nil
}
func (s *membershipStatements) SelectServerInRoom(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, serverName gomatrixserverlib.ServerName) (bool, error) {
var nid types.RoomNID
stmt := sqlutil.TxStmt(txn, s.selectServerInRoomStmt)
err := stmt.QueryRowContext(ctx, tables.MembershipStateJoin, roomNID, serverName).Scan(&nid)
if err != nil {
if err == sql.ErrNoRows {
return false, nil
}
return false, err
}
return roomNID == nid, nil
}
func (s *membershipStatements) DeleteMembership(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
) error {
_, err := sqlutil.TxStmt(txn, s.deleteMembershipStmt).ExecContext(
ctx, roomNID, targetUserNID,
)
return err
}