mirror of
https://github.com/1f349/dendrite.git
synced 2024-12-23 08:44:11 +00:00
271 lines
8.1 KiB
Go
271 lines
8.1 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"
|
|
"errors"
|
|
"fmt"
|
|
|
|
"github.com/matrix-org/dendrite/internal/caching"
|
|
"github.com/matrix-org/dendrite/internal/sqlutil"
|
|
"github.com/matrix-org/dendrite/roomserver/storage/shared"
|
|
"github.com/matrix-org/dendrite/roomserver/storage/sqlite3/deltas"
|
|
"github.com/matrix-org/dendrite/roomserver/types"
|
|
"github.com/matrix-org/dendrite/setup/config"
|
|
"github.com/matrix-org/gomatrixserverlib"
|
|
)
|
|
|
|
// A Database is used to store room events and stream offsets.
|
|
type Database struct {
|
|
shared.Database
|
|
}
|
|
|
|
// Open a sqlite database.
|
|
func Open(ctx context.Context, conMan sqlutil.Connections, dbProperties *config.DatabaseOptions, cache caching.RoomServerCaches) (*Database, error) {
|
|
var d Database
|
|
var err error
|
|
db, writer, err := conMan.Connection(dbProperties)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("sqlutil.Open: %w", err)
|
|
}
|
|
|
|
//db.Exec("PRAGMA journal_mode=WAL;")
|
|
//db.Exec("PRAGMA read_uncommitted = true;")
|
|
|
|
// FIXME: We are leaking connections somewhere. Setting this to 2 will eventually
|
|
// cause the roomserver to be unresponsive to new events because something will
|
|
// acquire the global mutex and never unlock it because it is waiting for a connection
|
|
// which it will never obtain.
|
|
// db.SetMaxOpenConns(20)
|
|
|
|
// Create the tables.
|
|
if err = d.create(db); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Special case, since this migration uses several tables, so it needs to
|
|
// be sure that all tables are created first.
|
|
if err = executeMigration(ctx, db); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Then prepare the statements. Now that the migrations have run, any columns referred
|
|
// to in the database code should now exist.
|
|
if err = d.prepare(db, writer, cache); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &d, nil
|
|
}
|
|
|
|
func executeMigration(ctx context.Context, db *sql.DB) error {
|
|
// TODO: Remove when we are sure we are not having goose artefacts in the db
|
|
// This forces an error, which indicates the migration is already applied, since the
|
|
// column event_nid was removed from the table
|
|
migrationName := "roomserver: state blocks refactor"
|
|
|
|
var cName string
|
|
err := db.QueryRowContext(ctx, `SELECT p.name FROM sqlite_master AS m JOIN pragma_table_info(m.name) AS p WHERE m.name = 'roomserver_state_block' AND p.name = 'event_nid'`).Scan(&cName)
|
|
if err != nil {
|
|
if errors.Is(err, sql.ErrNoRows) { // migration was already executed, as the column was removed
|
|
if err = sqlutil.InsertMigration(ctx, db, migrationName); err != nil {
|
|
return fmt.Errorf("unable to manually insert migration '%s': %w", migrationName, err)
|
|
}
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
m := sqlutil.NewMigrator(db)
|
|
m.AddMigrations(sqlutil.Migration{
|
|
Version: migrationName,
|
|
Up: deltas.UpStateBlocksRefactor,
|
|
})
|
|
return m.Up(ctx)
|
|
}
|
|
|
|
func (d *Database) create(db *sql.DB) error {
|
|
if err := CreateEventStateKeysTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateEventTypesTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateEventJSONTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateEventsTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateRoomsTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateStateBlockTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateStateSnapshotTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreatePrevEventsTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateRoomAliasesTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateInvitesTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateMembershipTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreatePublishedTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateRedactionsTable(db); err != nil {
|
|
return err
|
|
}
|
|
if err := CreateUserRoomKeysTable(db); err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (d *Database) prepare(db *sql.DB, writer sqlutil.Writer, cache caching.RoomServerCaches) error {
|
|
eventStateKeys, err := PrepareEventStateKeysTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
eventTypes, err := PrepareEventTypesTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
eventJSON, err := PrepareEventJSONTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
events, err := PrepareEventsTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
rooms, err := PrepareRoomsTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
stateBlock, err := PrepareStateBlockTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
stateSnapshot, err := PrepareStateSnapshotTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
prevEvents, err := PreparePrevEventsTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
roomAliases, err := PrepareRoomAliasesTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
invites, err := PrepareInvitesTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
membership, err := PrepareMembershipTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
published, err := PreparePublishedTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
redactions, err := PrepareRedactionsTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
purge, err := PreparePurgeStatements(db, stateSnapshot)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
userRoomKeys, err := PrepareUserRoomKeysTable(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
d.Database = shared.Database{
|
|
DB: db,
|
|
EventDatabase: shared.EventDatabase{
|
|
DB: db,
|
|
Cache: cache,
|
|
Writer: writer,
|
|
EventsTable: events,
|
|
EventTypesTable: eventTypes,
|
|
EventStateKeysTable: eventStateKeys,
|
|
EventJSONTable: eventJSON,
|
|
PrevEventsTable: prevEvents,
|
|
RedactionsTable: redactions,
|
|
},
|
|
Cache: cache,
|
|
Writer: writer,
|
|
RoomsTable: rooms,
|
|
StateBlockTable: stateBlock,
|
|
StateSnapshotTable: stateSnapshot,
|
|
RoomAliasesTable: roomAliases,
|
|
InvitesTable: invites,
|
|
MembershipTable: membership,
|
|
PublishedTable: published,
|
|
GetRoomUpdaterFn: d.GetRoomUpdater,
|
|
Purge: purge,
|
|
UserRoomKeyTable: userRoomKeys,
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (d *Database) SupportsConcurrentRoomInputs() bool {
|
|
// This isn't supported in SQLite mode yet because of issues with
|
|
// database locks.
|
|
// TODO: Look at this again - the problem is probably to do with
|
|
// the membership updaters and latest events updaters.
|
|
return false
|
|
}
|
|
|
|
func (d *Database) GetRoomUpdater(
|
|
ctx context.Context, roomInfo *types.RoomInfo,
|
|
) (*shared.RoomUpdater, error) {
|
|
// TODO: Do not use transactions. We should be holding open this transaction but we cannot have
|
|
// multiple write transactions on sqlite. The code will perform additional
|
|
// write transactions independent of this one which will consistently cause
|
|
// 'database is locked' errors. As sqlite doesn't support multi-process on the
|
|
// same DB anyway, and we only execute updates sequentially, the only worries
|
|
// are for rolling back when things go wrong. (atomicity)
|
|
return shared.NewRoomUpdater(ctx, &d.Database, nil, roomInfo)
|
|
}
|
|
|
|
func (d *Database) MembershipUpdater(
|
|
ctx context.Context, roomID, targetUserID string,
|
|
targetLocal bool, roomVersion gomatrixserverlib.RoomVersion,
|
|
) (*shared.MembershipUpdater, error) {
|
|
// TODO: Do not use transactions. We should be holding open this transaction but we cannot have
|
|
// multiple write transactions on sqlite. The code will perform additional
|
|
// write transactions independent of this one which will consistently cause
|
|
// 'database is locked' errors. As sqlite doesn't support multi-process on the
|
|
// same DB anyway, and we only execute updates sequentially, the only worries
|
|
// are for rolling back when things go wrong. (atomicity)
|
|
return shared.NewMembershipUpdater(ctx, &d.Database, nil, roomID, targetUserID, targetLocal, roomVersion)
|
|
}
|