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// 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"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/syncapi/storage/tables"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/gomatrixserverlib"
)
const accountDataSchema = `
CREATE TABLE IF NOT EXISTS syncapi_account_data_type (
id INTEGER PRIMARY KEY,
user_id TEXT NOT NULL,
room_id TEXT NOT NULL,
type TEXT NOT NULL,
UNIQUE (user_id, room_id, type)
);
`
const insertAccountDataSQL = "" +
"INSERT INTO syncapi_account_data_type (id, user_id, room_id, type) VALUES ($1, $2, $3, $4)" +
" ON CONFLICT (user_id, room_id, type) DO UPDATE" +
" SET id = $5"
const selectAccountDataInRangeSQL = "" +
"SELECT room_id, type FROM syncapi_account_data_type" +
" WHERE user_id = $1 AND id > $2 AND id <= $3" +
" ORDER BY id ASC"
const selectMaxAccountDataIDSQL = "" +
"SELECT MAX(id) FROM syncapi_account_data_type"
type accountDataStatements struct {
db *sql.DB
streamIDStatements *StreamIDStatements
insertAccountDataStmt *sql.Stmt
selectMaxAccountDataIDStmt *sql.Stmt
selectAccountDataInRangeStmt *sql.Stmt
}
func NewSqliteAccountDataTable(db *sql.DB, streamID *StreamIDStatements) (tables.AccountData, error) {
s := &accountDataStatements{
db: db,
streamIDStatements: streamID,
}
_, err := db.Exec(accountDataSchema)
if err != nil {
return nil, err
}
if s.insertAccountDataStmt, err = db.Prepare(insertAccountDataSQL); err != nil {
return nil, err
}
if s.selectMaxAccountDataIDStmt, err = db.Prepare(selectMaxAccountDataIDSQL); err != nil {
return nil, err
}
if s.selectAccountDataInRangeStmt, err = db.Prepare(selectAccountDataInRangeSQL); err != nil {
return nil, err
}
return s, nil
}
func (s *accountDataStatements) InsertAccountData(
ctx context.Context, txn *sql.Tx,
userID, roomID, dataType string,
) (pos types.StreamPosition, err error) {
pos, err = s.streamIDStatements.nextAccountDataID(ctx, txn)
if err != nil {
return
}
_, err = sqlutil.TxStmt(txn, s.insertAccountDataStmt).ExecContext(ctx, pos, userID, roomID, dataType, pos)
return
}
func (s *accountDataStatements) SelectAccountDataInRange(
ctx context.Context,
userID string,
r types.Range,
accountDataFilterPart *gomatrixserverlib.EventFilter,
) (data map[string][]string, err error) {
data = make(map[string][]string)
rows, err := s.selectAccountDataInRangeStmt.QueryContext(ctx, userID, r.Low(), r.High())
if err != nil {
return
}
defer internal.CloseAndLogIfError(ctx, rows, "selectAccountDataInRange: rows.close() failed")
var entries int
for rows.Next() {
var dataType string
var roomID string
if err = rows.Scan(&roomID, &dataType); err != nil {
return
}
// check if we should add this by looking at the filter.
// It would be nice if we could do this in SQL-land, but the mix of variadic
// and positional parameters makes the query annoyingly hard to do, it's easier
// and clearer to do it in Go-land. If there are no filters for [not]types then
// this gets skipped.
for _, includeType := range accountDataFilterPart.Types {
if includeType != dataType { // TODO: wildcard support
continue
}
}
for _, excludeType := range accountDataFilterPart.NotTypes {
if excludeType == dataType { // TODO: wildcard support
continue
}
}
if len(data[roomID]) > 0 {
data[roomID] = append(data[roomID], dataType)
} else {
data[roomID] = []string{dataType}
}
entries++
if entries >= accountDataFilterPart.Limit {
break
}
}
return data, nil
}
func (s *accountDataStatements) SelectMaxAccountDataID(
ctx context.Context, txn *sql.Tx,
) (id int64, err error) {
var nullableID sql.NullInt64
err = sqlutil.TxStmt(txn, s.selectMaxAccountDataIDStmt).QueryRowContext(ctx).Scan(&nullableID)
if nullableID.Valid {
id = nullableID.Int64
}
return
}
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