mirror of
https://github.com/matrix-org/dendrite
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* Hash-deduplicated state storage (and migrations) for PostgreSQL and SQLite * Refactor droomserver database setup for migrations * Fix conflict statements * Update migration names * Set a boundary for old to new block/snapshot IDs so we don't rewrite them more than once accidentally * Create sequence if not exists * Fix boundary queries * Fix boundary queries * Use Query * Break out queries a bit * More sequence tweaks * Query parameters are not playing the game * Injection escaping may not work for CREATE SEQUENCE after all * Fix snapshot sequence name * Use boundaried IDs in SQLite too * Use IFNULL for SQLite * Use COALESCE in PostgreSQL * Review comments @Kegsay
165 lines
5.5 KiB
Go
165 lines
5.5 KiB
Go
// Copyright 2017-2018 New Vector Ltd
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// Copyright 2019-2020 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sqlite3
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import (
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"context"
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"database/sql"
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"strings"
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"github.com/matrix-org/dendrite/internal"
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"github.com/matrix-org/dendrite/internal/sqlutil"
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"github.com/matrix-org/dendrite/roomserver/storage/shared"
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"github.com/matrix-org/dendrite/roomserver/storage/tables"
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"github.com/matrix-org/dendrite/roomserver/types"
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)
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const eventStateKeysSchema = `
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CREATE TABLE IF NOT EXISTS roomserver_event_state_keys (
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event_state_key_nid INTEGER PRIMARY KEY AUTOINCREMENT,
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event_state_key TEXT NOT NULL UNIQUE
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);
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INSERT INTO roomserver_event_state_keys (event_state_key_nid, event_state_key)
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VALUES (1, '')
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ON CONFLICT DO NOTHING;
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`
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// Same as insertEventTypeNIDSQL
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const insertEventStateKeyNIDSQL = `
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INSERT INTO roomserver_event_state_keys (event_state_key) VALUES ($1)
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ON CONFLICT DO NOTHING;
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`
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const selectEventStateKeyNIDSQL = `
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SELECT event_state_key_nid FROM roomserver_event_state_keys
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WHERE event_state_key = $1
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`
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// Bulk lookup from string state key to numeric ID for that state key.
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// Takes an array of strings as the query parameter.
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const bulkSelectEventStateKeySQL = `
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SELECT event_state_key, event_state_key_nid FROM roomserver_event_state_keys
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WHERE event_state_key IN ($1)
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`
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// Bulk lookup from numeric ID to string state key for that state key.
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// Takes an array of strings as the query parameter.
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const bulkSelectEventStateKeyNIDSQL = `
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SELECT event_state_key, event_state_key_nid FROM roomserver_event_state_keys
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WHERE event_state_key_nid IN ($1)
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`
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type eventStateKeyStatements struct {
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db *sql.DB
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insertEventStateKeyNIDStmt *sql.Stmt
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selectEventStateKeyNIDStmt *sql.Stmt
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bulkSelectEventStateKeyNIDStmt *sql.Stmt
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bulkSelectEventStateKeyStmt *sql.Stmt
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}
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func createEventStateKeysTable(db *sql.DB) error {
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_, err := db.Exec(eventStateKeysSchema)
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return err
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}
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func prepareEventStateKeysTable(db *sql.DB) (tables.EventStateKeys, error) {
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s := &eventStateKeyStatements{
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db: db,
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}
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return s, shared.StatementList{
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{&s.insertEventStateKeyNIDStmt, insertEventStateKeyNIDSQL},
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{&s.selectEventStateKeyNIDStmt, selectEventStateKeyNIDSQL},
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{&s.bulkSelectEventStateKeyNIDStmt, bulkSelectEventStateKeyNIDSQL},
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{&s.bulkSelectEventStateKeyStmt, bulkSelectEventStateKeySQL},
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}.Prepare(db)
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}
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func (s *eventStateKeyStatements) InsertEventStateKeyNID(
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ctx context.Context, txn *sql.Tx, eventStateKey string,
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) (types.EventStateKeyNID, error) {
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insertStmt := sqlutil.TxStmt(txn, s.insertEventStateKeyNIDStmt)
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res, err := insertStmt.ExecContext(ctx, eventStateKey)
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if err != nil {
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return 0, err
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}
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eventStateKeyNID, err := res.LastInsertId()
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if err != nil {
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return 0, err
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}
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return types.EventStateKeyNID(eventStateKeyNID), err
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}
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func (s *eventStateKeyStatements) SelectEventStateKeyNID(
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ctx context.Context, txn *sql.Tx, eventStateKey string,
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) (types.EventStateKeyNID, error) {
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var eventStateKeyNID int64
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stmt := sqlutil.TxStmt(txn, s.selectEventStateKeyNIDStmt)
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err := stmt.QueryRowContext(ctx, eventStateKey).Scan(&eventStateKeyNID)
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return types.EventStateKeyNID(eventStateKeyNID), err
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}
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func (s *eventStateKeyStatements) BulkSelectEventStateKeyNID(
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ctx context.Context, eventStateKeys []string,
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) (map[string]types.EventStateKeyNID, error) {
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iEventStateKeys := make([]interface{}, len(eventStateKeys))
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for k, v := range eventStateKeys {
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iEventStateKeys[k] = v
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}
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selectOrig := strings.Replace(bulkSelectEventStateKeySQL, "($1)", sqlutil.QueryVariadic(len(eventStateKeys)), 1)
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rows, err := s.db.QueryContext(ctx, selectOrig, iEventStateKeys...)
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if err != nil {
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return nil, err
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}
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defer internal.CloseAndLogIfError(ctx, rows, "bulkSelectEventStateKeyNID: rows.close() failed")
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result := make(map[string]types.EventStateKeyNID, len(eventStateKeys))
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for rows.Next() {
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var stateKey string
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var stateKeyNID int64
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if err := rows.Scan(&stateKey, &stateKeyNID); err != nil {
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return nil, err
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}
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result[stateKey] = types.EventStateKeyNID(stateKeyNID)
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}
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return result, nil
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}
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func (s *eventStateKeyStatements) BulkSelectEventStateKey(
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ctx context.Context, eventStateKeyNIDs []types.EventStateKeyNID,
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) (map[types.EventStateKeyNID]string, error) {
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iEventStateKeyNIDs := make([]interface{}, len(eventStateKeyNIDs))
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for k, v := range eventStateKeyNIDs {
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iEventStateKeyNIDs[k] = v
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}
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selectOrig := strings.Replace(bulkSelectEventStateKeyNIDSQL, "($1)", sqlutil.QueryVariadic(len(eventStateKeyNIDs)), 1)
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rows, err := s.db.QueryContext(ctx, selectOrig, iEventStateKeyNIDs...)
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if err != nil {
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return nil, err
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}
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defer internal.CloseAndLogIfError(ctx, rows, "bulkSelectEventStateKey: rows.close() failed")
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result := make(map[types.EventStateKeyNID]string, len(eventStateKeyNIDs))
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for rows.Next() {
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var stateKey string
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var stateKeyNID int64
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if err := rows.Scan(&stateKey, &stateKeyNID); err != nil {
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return nil, err
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}
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result[types.EventStateKeyNID(stateKeyNID)] = stateKey
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}
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return result, nil
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}
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