mirror of
https://github.com/matrix-org/dendrite
synced 2024-12-17 20:23:45 +01:00
5ce1fe80de
* 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
143 lines
4 KiB
Go
143 lines
4 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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"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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)
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const roomAliasesSchema = `
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CREATE TABLE IF NOT EXISTS roomserver_room_aliases (
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alias TEXT NOT NULL PRIMARY KEY,
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room_id TEXT NOT NULL,
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creator_id TEXT NOT NULL
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);
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CREATE INDEX IF NOT EXISTS roomserver_room_id_idx ON roomserver_room_aliases(room_id);
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`
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const insertRoomAliasSQL = `
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INSERT INTO roomserver_room_aliases (alias, room_id, creator_id) VALUES ($1, $2, $3)
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`
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const selectRoomIDFromAliasSQL = `
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SELECT room_id FROM roomserver_room_aliases WHERE alias = $1
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`
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const selectAliasesFromRoomIDSQL = `
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SELECT alias FROM roomserver_room_aliases WHERE room_id = $1
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`
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const selectCreatorIDFromAliasSQL = `
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SELECT creator_id FROM roomserver_room_aliases WHERE alias = $1
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`
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const deleteRoomAliasSQL = `
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DELETE FROM roomserver_room_aliases WHERE alias = $1
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`
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type roomAliasesStatements struct {
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db *sql.DB
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insertRoomAliasStmt *sql.Stmt
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selectRoomIDFromAliasStmt *sql.Stmt
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selectAliasesFromRoomIDStmt *sql.Stmt
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selectCreatorIDFromAliasStmt *sql.Stmt
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deleteRoomAliasStmt *sql.Stmt
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}
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func createRoomAliasesTable(db *sql.DB) error {
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_, err := db.Exec(roomAliasesSchema)
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return err
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}
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func prepareRoomAliasesTable(db *sql.DB) (tables.RoomAliases, error) {
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s := &roomAliasesStatements{
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db: db,
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}
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return s, shared.StatementList{
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{&s.insertRoomAliasStmt, insertRoomAliasSQL},
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{&s.selectRoomIDFromAliasStmt, selectRoomIDFromAliasSQL},
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{&s.selectAliasesFromRoomIDStmt, selectAliasesFromRoomIDSQL},
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{&s.selectCreatorIDFromAliasStmt, selectCreatorIDFromAliasSQL},
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{&s.deleteRoomAliasStmt, deleteRoomAliasSQL},
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}.Prepare(db)
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}
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func (s *roomAliasesStatements) InsertRoomAlias(
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ctx context.Context, txn *sql.Tx, alias string, roomID string, creatorUserID string,
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) error {
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stmt := sqlutil.TxStmt(txn, s.insertRoomAliasStmt)
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_, err := stmt.ExecContext(ctx, alias, roomID, creatorUserID)
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return err
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}
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func (s *roomAliasesStatements) SelectRoomIDFromAlias(
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ctx context.Context, alias string,
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) (roomID string, err error) {
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err = s.selectRoomIDFromAliasStmt.QueryRowContext(ctx, alias).Scan(&roomID)
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if err == sql.ErrNoRows {
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return "", nil
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}
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return
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}
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func (s *roomAliasesStatements) SelectAliasesFromRoomID(
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ctx context.Context, roomID string,
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) (aliases []string, err error) {
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aliases = []string{}
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rows, err := s.selectAliasesFromRoomIDStmt.QueryContext(ctx, roomID)
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if err != nil {
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return
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}
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defer internal.CloseAndLogIfError(ctx, rows, "selectAliasesFromRoomID: rows.close() failed")
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for rows.Next() {
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var alias string
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if err = rows.Scan(&alias); err != nil {
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return
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}
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aliases = append(aliases, alias)
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}
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return
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}
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func (s *roomAliasesStatements) SelectCreatorIDFromAlias(
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ctx context.Context, alias string,
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) (creatorID string, err error) {
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err = s.selectCreatorIDFromAliasStmt.QueryRowContext(ctx, alias).Scan(&creatorID)
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if err == sql.ErrNoRows {
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return "", nil
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}
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return
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}
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func (s *roomAliasesStatements) DeleteRoomAlias(
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ctx context.Context, txn *sql.Tx, alias string,
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) error {
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stmt := sqlutil.TxStmt(txn, s.deleteRoomAliasStmt)
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_, err := stmt.ExecContext(ctx, alias)
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return err
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}
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