dendrite/syncapi/storage/sqlite3/current_room_state_table.go
Kegsay b6ea1bc67a
Support sqlite in addition to postgres (#869)
* Move current work into single branch

* Initial massaging of clientapi etc (not working yet)

* Interfaces for accounts/devices databases

* Duplicate postgres package for sqlite3 (no changes made to it yet)

* Some keydb, accountdb, devicedb, common partition fixes, some more syncapi tweaking

* Fix accounts DB, device DB

* Update naffka dependency for SQLite

* Naffka SQLite

* Update naffka to latest master

* SQLite support for federationsender

* Mostly not-bad support for SQLite in syncapi (although there are problems where lots of events get classed incorrectly as backward extremities, probably because of IN/ANY clauses that are badly supported)

* Update Dockerfile -> Go 1.13.7, add build-base (as gcc and friends are needed for SQLite)

* Implement GET endpoints for account_data in clientapi

* Nuke filtering for now...

* Revert "Implement GET endpoints for account_data in clientapi"

This reverts commit 4d80dff4583d278620d9b3ed437e9fcd8d4674ee.

* Implement GET endpoints for account_data in clientapi (#861)

* Implement GET endpoints for account_data in clientapi

* Fix accountDB parameter

* Remove fmt.Println

* Fix insertAccountData SQLite query

* Fix accountDB storage interfaces

* Add empty push rules into account data on account creation (#862)

* Put SaveAccountData into the right function this time

* Not sure if roomserver is better or worse now

* sqlite work

* Allow empty last sent ID for the first event

* sqlite: room creation works

* Support sending messages

* Nuke fmt.println

* Move QueryVariadic etc into common, other device fixes

* Fix some linter issues

* Fix bugs

* Fix some linting errors

* Fix errcheck lint errors

* Make naffka use postgres as fallback, fix couple of compile errors

* What on earth happened to the /rooms/{roomID}/send/{eventType} routing

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
2020-02-13 17:27:33 +00:00

276 lines
8.9 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"
"encoding/json"
"github.com/lib/pq"
"github.com/matrix-org/dendrite/common"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/gomatrixserverlib"
)
const currentRoomStateSchema = `
-- Stores the current room state for every room.
CREATE TABLE IF NOT EXISTS syncapi_current_room_state (
room_id TEXT NOT NULL,
event_id TEXT NOT NULL,
type TEXT NOT NULL,
sender TEXT NOT NULL,
contains_url BOOL NOT NULL DEFAULT false,
state_key TEXT NOT NULL,
event_json TEXT NOT NULL,
membership TEXT,
added_at BIGINT,
UNIQUE (room_id, type, state_key)
);
-- for event deletion
CREATE UNIQUE INDEX IF NOT EXISTS syncapi_event_id_idx ON syncapi_current_room_state(event_id, room_id, type, sender, contains_url);
-- for querying membership states of users
-- CREATE INDEX IF NOT EXISTS syncapi_membership_idx ON syncapi_current_room_state(type, state_key, membership) WHERE membership IS NOT NULL AND membership != 'leave';
`
const upsertRoomStateSQL = "" +
"INSERT INTO syncapi_current_room_state (room_id, event_id, type, sender, contains_url, state_key, event_json, membership, added_at)" +
" VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)" +
" ON CONFLICT (event_id, room_id, type, sender, contains_url)" +
" DO UPDATE SET event_id = $2, sender=$4, contains_url=$5, event_json = $7, membership = $8, added_at = $9"
const deleteRoomStateByEventIDSQL = "" +
"DELETE FROM syncapi_current_room_state WHERE event_id = $1"
const selectRoomIDsWithMembershipSQL = "" +
"SELECT room_id FROM syncapi_current_room_state WHERE type = 'm.room.member' AND state_key = $1 AND membership = $2"
const selectCurrentStateSQL = "" +
"SELECT event_json FROM syncapi_current_room_state WHERE room_id = $1" +
" AND ( $2 IS NULL OR sender IN ($2) )" +
" AND ( $3 IS NULL OR NOT(sender IN ($3)) )" +
" AND ( $4 IS NULL OR type IN ($4) )" +
" AND ( $5 IS NULL OR NOT(type IN ($5)) )" +
" AND ( $6 IS NULL OR contains_url = $6 )" +
" LIMIT $7"
const selectJoinedUsersSQL = "" +
"SELECT room_id, state_key FROM syncapi_current_room_state WHERE type = 'm.room.member' AND membership = 'join'"
const selectStateEventSQL = "" +
"SELECT event_json FROM syncapi_current_room_state WHERE room_id = $1 AND type = $2 AND state_key = $3"
const selectEventsWithEventIDsSQL = "" +
// TODO: The session_id and transaction_id blanks are here because otherwise
// the rowsToStreamEvents expects there to be exactly five columns. We need to
// figure out if these really need to be in the DB, and if so, we need a
// better permanent fix for this. - neilalexander, 2 Jan 2020
"SELECT added_at, event_json, 0 AS session_id, false AS exclude_from_sync, '' AS transaction_id" +
" FROM syncapi_current_room_state WHERE event_id IN ($1)"
type currentRoomStateStatements struct {
streamIDStatements *streamIDStatements
upsertRoomStateStmt *sql.Stmt
deleteRoomStateByEventIDStmt *sql.Stmt
selectRoomIDsWithMembershipStmt *sql.Stmt
selectCurrentStateStmt *sql.Stmt
selectJoinedUsersStmt *sql.Stmt
selectEventsWithEventIDsStmt *sql.Stmt
selectStateEventStmt *sql.Stmt
}
func (s *currentRoomStateStatements) prepare(db *sql.DB, streamID *streamIDStatements) (err error) {
s.streamIDStatements = streamID
_, err = db.Exec(currentRoomStateSchema)
if err != nil {
return
}
if s.upsertRoomStateStmt, err = db.Prepare(upsertRoomStateSQL); err != nil {
return
}
if s.deleteRoomStateByEventIDStmt, err = db.Prepare(deleteRoomStateByEventIDSQL); err != nil {
return
}
if s.selectRoomIDsWithMembershipStmt, err = db.Prepare(selectRoomIDsWithMembershipSQL); err != nil {
return
}
if s.selectCurrentStateStmt, err = db.Prepare(selectCurrentStateSQL); err != nil {
return
}
if s.selectJoinedUsersStmt, err = db.Prepare(selectJoinedUsersSQL); err != nil {
return
}
if s.selectEventsWithEventIDsStmt, err = db.Prepare(selectEventsWithEventIDsSQL); err != nil {
return
}
if s.selectStateEventStmt, err = db.Prepare(selectStateEventSQL); err != nil {
return
}
return
}
// JoinedMemberLists returns a map of room ID to a list of joined user IDs.
func (s *currentRoomStateStatements) selectJoinedUsers(
ctx context.Context,
) (map[string][]string, error) {
rows, err := s.selectJoinedUsersStmt.QueryContext(ctx)
if err != nil {
return nil, err
}
defer rows.Close() // nolint: errcheck
result := make(map[string][]string)
for rows.Next() {
var roomID string
var userID string
if err := rows.Scan(&roomID, &userID); err != nil {
return nil, err
}
users := result[roomID]
users = append(users, userID)
result[roomID] = users
}
return result, nil
}
// SelectRoomIDsWithMembership returns the list of room IDs which have the given user in the given membership state.
func (s *currentRoomStateStatements) selectRoomIDsWithMembership(
ctx context.Context,
txn *sql.Tx,
userID string,
membership string, // nolint: unparam
) ([]string, error) {
stmt := common.TxStmt(txn, s.selectRoomIDsWithMembershipStmt)
rows, err := stmt.QueryContext(ctx, userID, membership)
if err != nil {
return nil, err
}
defer rows.Close() // nolint: errcheck
var result []string
for rows.Next() {
var roomID string
if err := rows.Scan(&roomID); err != nil {
return nil, err
}
result = append(result, roomID)
}
return result, nil
}
// CurrentState returns all the current state events for the given room.
func (s *currentRoomStateStatements) selectCurrentState(
ctx context.Context, txn *sql.Tx, roomID string,
stateFilterPart *gomatrixserverlib.StateFilter,
) ([]gomatrixserverlib.Event, error) {
stmt := common.TxStmt(txn, s.selectCurrentStateStmt)
rows, err := stmt.QueryContext(ctx, roomID,
pq.StringArray(stateFilterPart.Senders),
pq.StringArray(stateFilterPart.NotSenders),
pq.StringArray(filterConvertTypeWildcardToSQL(stateFilterPart.Types)),
pq.StringArray(filterConvertTypeWildcardToSQL(stateFilterPart.NotTypes)),
stateFilterPart.ContainsURL,
stateFilterPart.Limit,
)
if err != nil {
return nil, err
}
defer rows.Close() // nolint: errcheck
return rowsToEvents(rows)
}
func (s *currentRoomStateStatements) deleteRoomStateByEventID(
ctx context.Context, txn *sql.Tx, eventID string,
) error {
stmt := common.TxStmt(txn, s.deleteRoomStateByEventIDStmt)
_, err := stmt.ExecContext(ctx, eventID)
return err
}
func (s *currentRoomStateStatements) upsertRoomState(
ctx context.Context, txn *sql.Tx,
event gomatrixserverlib.Event, membership *string, addedAt types.StreamPosition,
) error {
// Parse content as JSON and search for an "url" key
containsURL := false
var content map[string]interface{}
if json.Unmarshal(event.Content(), &content) != nil {
// Set containsURL to true if url is present
_, containsURL = content["url"]
}
// upsert state event
stmt := common.TxStmt(txn, s.upsertRoomStateStmt)
_, err := stmt.ExecContext(
ctx,
event.RoomID(),
event.EventID(),
event.Type(),
event.Sender(),
containsURL,
*event.StateKey(),
event.JSON(),
membership,
addedAt,
)
return err
}
func (s *currentRoomStateStatements) selectEventsWithEventIDs(
ctx context.Context, txn *sql.Tx, eventIDs []string,
) ([]types.StreamEvent, error) {
stmt := common.TxStmt(txn, s.selectEventsWithEventIDsStmt)
rows, err := stmt.QueryContext(ctx, pq.StringArray(eventIDs))
if err != nil {
return nil, err
}
defer rows.Close() // nolint: errcheck
return rowsToStreamEvents(rows)
}
func rowsToEvents(rows *sql.Rows) ([]gomatrixserverlib.Event, error) {
result := []gomatrixserverlib.Event{}
for rows.Next() {
var eventBytes []byte
if err := rows.Scan(&eventBytes); err != nil {
return nil, err
}
// TODO: Handle redacted events
ev, err := gomatrixserverlib.NewEventFromTrustedJSON(eventBytes, false)
if err != nil {
return nil, err
}
result = append(result, ev)
}
return result, nil
}
func (s *currentRoomStateStatements) selectStateEvent(
ctx context.Context, roomID, evType, stateKey string,
) (*gomatrixserverlib.Event, error) {
stmt := s.selectStateEventStmt
var res []byte
err := stmt.QueryRowContext(ctx, roomID, evType, stateKey).Scan(&res)
if err == sql.ErrNoRows {
return nil, nil
}
if err != nil {
return nil, err
}
ev, err := gomatrixserverlib.NewEventFromTrustedJSON(res, false)
return &ev, err
}