dendrite/roomserver/storage/sqlite3/state_snapshot_table.go

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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
// 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/lib/pq"
"github.com/matrix-org/dendrite/common"
"github.com/matrix-org/dendrite/roomserver/types"
)
const stateSnapshotSchema = `
CREATE TABLE IF NOT EXISTS roomserver_state_snapshots (
state_snapshot_nid INTEGER PRIMARY KEY AUTOINCREMENT,
room_nid INTEGER NOT NULL,
state_block_nids TEXT NOT NULL DEFAULT '{}'
);
`
const insertStateSQL = `
INSERT INTO roomserver_state_snapshots (room_nid, state_block_nids)
VALUES ($1, $2);`
// Bulk state data NID lookup.
// Sorting by state_snapshot_nid means we can use binary search over the result
// to lookup the state data NIDs for a state snapshot NID.
const bulkSelectStateBlockNIDsSQL = "" +
"SELECT state_snapshot_nid, state_block_nids FROM roomserver_state_snapshots" +
" WHERE state_snapshot_nid IN ($1) ORDER BY state_snapshot_nid ASC"
type stateSnapshotStatements struct {
db *sql.DB
insertStateStmt *sql.Stmt
bulkSelectStateBlockNIDsStmt *sql.Stmt
}
func (s *stateSnapshotStatements) prepare(db *sql.DB) (err error) {
s.db = db
_, err = db.Exec(stateSnapshotSchema)
if err != nil {
return
}
return statementList{
{&s.insertStateStmt, insertStateSQL},
{&s.bulkSelectStateBlockNIDsStmt, bulkSelectStateBlockNIDsSQL},
}.prepare(db)
}
func (s *stateSnapshotStatements) insertState(
ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, stateBlockNIDs []types.StateBlockNID,
) (stateNID types.StateSnapshotNID, err error) {
nids := make([]int64, len(stateBlockNIDs))
for i := range stateBlockNIDs {
nids[i] = int64(stateBlockNIDs[i])
}
insertStmt := txn.Stmt(s.insertStateStmt)
if res, err2 := insertStmt.ExecContext(ctx, int64(roomNID), pq.Int64Array(nids)); err2 == nil {
lastRowID, err3 := res.LastInsertId()
if err3 != nil {
err = err3
}
stateNID = types.StateSnapshotNID(lastRowID)
}
return
}
func (s *stateSnapshotStatements) bulkSelectStateBlockNIDs(
ctx context.Context, txn *sql.Tx, stateNIDs []types.StateSnapshotNID,
) ([]types.StateBlockNIDList, error) {
nids := make([]interface{}, len(stateNIDs))
for k, v := range stateNIDs {
nids[k] = v
}
selectOrig := strings.Replace(bulkSelectStateBlockNIDsSQL, "($1)", common.QueryVariadic(len(nids)), 1)
selectStmt, err := txn.Prepare(selectOrig)
if err != nil {
return nil, err
}
rows, err := selectStmt.QueryContext(ctx, nids...)
if err != nil {
return nil, err
}
defer rows.Close() // nolint: errcheck
results := make([]types.StateBlockNIDList, len(stateNIDs))
i := 0
for ; rows.Next(); i++ {
result := &results[i]
var stateBlockNIDs pq.Int64Array
if err := rows.Scan(&result.StateSnapshotNID, &stateBlockNIDs); err != nil {
return nil, err
}
result.StateBlockNIDs = make([]types.StateBlockNID, len(stateBlockNIDs))
for k := range stateBlockNIDs {
result.StateBlockNIDs[k] = types.StateBlockNID(stateBlockNIDs[k])
}
}
if i != len(stateNIDs) {
return nil, fmt.Errorf("storage: state NIDs missing from the database (%d != %d)", i, len(stateNIDs))
}
return results, nil
}