mirror of
https://github.com/matrix-org/dendrite
synced 2024-12-21 03:13:44 +01:00
109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
// Copyright 2017 Vector Creations Ltd
|
|
//
|
|
// 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 storage
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
)
|
|
|
|
const roomAliasesSchema = `
|
|
-- Stores room aliases and room IDs they refer to
|
|
CREATE TABLE IF NOT EXISTS roomserver_room_aliases (
|
|
-- Alias of the room
|
|
alias TEXT NOT NULL PRIMARY KEY,
|
|
-- Room ID the alias refers to
|
|
room_id TEXT NOT NULL
|
|
);
|
|
|
|
CREATE INDEX IF NOT EXISTS roomserver_room_id_idx ON roomserver_room_aliases(room_id);
|
|
`
|
|
|
|
const insertRoomAliasSQL = "" +
|
|
"INSERT INTO roomserver_room_aliases (alias, room_id) VALUES ($1, $2)"
|
|
|
|
const selectRoomIDFromAliasSQL = "" +
|
|
"SELECT room_id FROM roomserver_room_aliases WHERE alias = $1"
|
|
|
|
const selectAliasesFromRoomIDSQL = "" +
|
|
"SELECT alias FROM roomserver_room_aliases WHERE room_id = $1"
|
|
|
|
const deleteRoomAliasSQL = "" +
|
|
"DELETE FROM roomserver_room_aliases WHERE alias = $1"
|
|
|
|
type roomAliasesStatements struct {
|
|
insertRoomAliasStmt *sql.Stmt
|
|
selectRoomIDFromAliasStmt *sql.Stmt
|
|
selectAliasesFromRoomIDStmt *sql.Stmt
|
|
deleteRoomAliasStmt *sql.Stmt
|
|
}
|
|
|
|
func (s *roomAliasesStatements) prepare(db *sql.DB) (err error) {
|
|
_, err = db.Exec(roomAliasesSchema)
|
|
if err != nil {
|
|
return
|
|
}
|
|
return statementList{
|
|
{&s.insertRoomAliasStmt, insertRoomAliasSQL},
|
|
{&s.selectRoomIDFromAliasStmt, selectRoomIDFromAliasSQL},
|
|
{&s.selectAliasesFromRoomIDStmt, selectAliasesFromRoomIDSQL},
|
|
{&s.deleteRoomAliasStmt, deleteRoomAliasSQL},
|
|
}.prepare(db)
|
|
}
|
|
|
|
func (s *roomAliasesStatements) insertRoomAlias(
|
|
ctx context.Context, alias string, roomID string,
|
|
) (err error) {
|
|
_, err = s.insertRoomAliasStmt.ExecContext(ctx, alias, roomID)
|
|
return
|
|
}
|
|
|
|
func (s *roomAliasesStatements) selectRoomIDFromAlias(
|
|
ctx context.Context, alias string,
|
|
) (roomID string, err error) {
|
|
err = s.selectRoomIDFromAliasStmt.QueryRowContext(ctx, alias).Scan(&roomID)
|
|
if err == sql.ErrNoRows {
|
|
return "", nil
|
|
}
|
|
return
|
|
}
|
|
|
|
func (s *roomAliasesStatements) selectAliasesFromRoomID(
|
|
ctx context.Context, roomID string,
|
|
) (aliases []string, err error) {
|
|
aliases = []string{}
|
|
rows, err := s.selectAliasesFromRoomIDStmt.QueryContext(ctx, roomID)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
for rows.Next() {
|
|
var alias string
|
|
if err = rows.Scan(&alias); err != nil {
|
|
return
|
|
}
|
|
|
|
aliases = append(aliases, alias)
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func (s *roomAliasesStatements) deleteRoomAlias(
|
|
ctx context.Context, alias string,
|
|
) (err error) {
|
|
_, err = s.deleteRoomAliasStmt.ExecContext(ctx, alias)
|
|
return
|
|
}
|