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// 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 postgres
import (
"context"
"database/sql"
"encoding/json"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/userapi/storage/tables"
"github.com/matrix-org/gomatrixserverlib"
)
const accountDataSchema = `
-- Stores data about accounts data.
CREATE TABLE IF NOT EXISTS userapi_account_datas (
-- The Matrix user ID localpart for this account
localpart TEXT NOT NULL,
server_name TEXT NOT NULL,
-- The room ID for this data (empty string if not specific to a room)
room_id TEXT,
-- The account data type
type TEXT NOT NULL,
-- The account data content
content TEXT NOT NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS userapi_account_datas_idx ON userapi_account_datas(localpart, server_name, room_id, type);
`
const insertAccountDataSQL = `
INSERT INTO userapi_account_datas(localpart, server_name, room_id, type, content) VALUES($1, $2, $3, $4, $5)
ON CONFLICT (localpart, server_name, room_id, type) DO UPDATE SET content = EXCLUDED.content
`
const selectAccountDataSQL = "" +
"SELECT room_id, type, content FROM userapi_account_datas WHERE localpart = $1 AND server_name = $2"
const selectAccountDataByTypeSQL = "" +
"SELECT content FROM userapi_account_datas WHERE localpart = $1 AND server_name = $2 AND room_id = $3 AND type = $4"
type accountDataStatements struct {
insertAccountDataStmt *sql.Stmt
selectAccountDataStmt *sql.Stmt
selectAccountDataByTypeStmt *sql.Stmt
}
func NewPostgresAccountDataTable(db *sql.DB) (tables.AccountDataTable, error) {
s := &accountDataStatements{}
_, err := db.Exec(accountDataSchema)
if err != nil {
return nil, err
}
return s, sqlutil.StatementList{
{&s.insertAccountDataStmt, insertAccountDataSQL},
{&s.selectAccountDataStmt, selectAccountDataSQL},
{&s.selectAccountDataByTypeStmt, selectAccountDataByTypeSQL},
}.Prepare(db)
}
func (s *accountDataStatements) InsertAccountData(
ctx context.Context, txn *sql.Tx,
localpart string, serverName gomatrixserverlib.ServerName,
roomID, dataType string, content json.RawMessage,
) (err error) {
stmt := sqlutil.TxStmt(txn, s.insertAccountDataStmt)
_, err = stmt.ExecContext(ctx, localpart, serverName, roomID, dataType, content)
return
}
func (s *accountDataStatements) SelectAccountData(
ctx context.Context,
localpart string, serverName gomatrixserverlib.ServerName,
) (
/* global */ map[string]json.RawMessage,
/* rooms */ map[string]map[string]json.RawMessage,
error,
) {
rows, err := s.selectAccountDataStmt.QueryContext(ctx, localpart, serverName)
if err != nil {
return nil, nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "selectAccountData: rows.close() failed")
global := map[string]json.RawMessage{}
rooms := map[string]map[string]json.RawMessage{}
for rows.Next() {
var roomID string
var dataType string
var content []byte
if err = rows.Scan(&roomID, &dataType, &content); err != nil {
return nil, nil, err
}
if roomID != "" {
if _, ok := rooms[roomID]; !ok {
rooms[roomID] = map[string]json.RawMessage{}
}
rooms[roomID][dataType] = content
} else {
global[dataType] = content
}
}
return global, rooms, rows.Err()
}
func (s *accountDataStatements) SelectAccountDataByType(
ctx context.Context,
localpart string, serverName gomatrixserverlib.ServerName,
roomID, dataType string,
) (data json.RawMessage, err error) {
var bytes []byte
stmt := s.selectAccountDataByTypeStmt
if err = stmt.QueryRowContext(ctx, localpart, serverName, roomID, dataType).Scan(&bytes); err != nil {
if err == sql.ErrNoRows {
return nil, nil
}
return
}
data = json.RawMessage(bytes)
return
}
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