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// Copyright 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"
"fmt"
"strings"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/syncapi/storage/sqlite3/deltas"
"github.com/matrix-org/dendrite/syncapi/storage/tables"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/gomatrixserverlib"
)
const receiptsSchema = `
-- Stores data about receipts
CREATE TABLE IF NOT EXISTS syncapi_receipts (
-- The ID
id BIGINT,
room_id TEXT NOT NULL,
receipt_type TEXT NOT NULL,
user_id TEXT NOT NULL,
event_id TEXT NOT NULL,
receipt_ts BIGINT NOT NULL,
CONSTRAINT syncapi_receipts_unique UNIQUE (room_id, receipt_type, user_id)
);
CREATE INDEX IF NOT EXISTS syncapi_receipts_room_id_idx ON syncapi_receipts(room_id);
`
const upsertReceipt = "" +
"INSERT INTO syncapi_receipts" +
" (id, room_id, receipt_type, user_id, event_id, receipt_ts)" +
" VALUES ($1, $2, $3, $4, $5, $6)" +
" ON CONFLICT (room_id, receipt_type, user_id)" +
" DO UPDATE SET id = $7, event_id = $8, receipt_ts = $9"
const selectRoomReceipts = "" +
"SELECT id, room_id, receipt_type, user_id, event_id, receipt_ts" +
" FROM syncapi_receipts" +
" WHERE id > $1 and room_id in ($2)"
const selectMaxReceiptIDSQL = "" +
"SELECT MAX(id) FROM syncapi_receipts"
const purgeReceiptsSQL = "" +
"DELETE FROM syncapi_receipts WHERE room_id = $1"
type receiptStatements struct {
db *sql.DB
streamIDStatements *StreamIDStatements
upsertReceipt *sql.Stmt
selectRoomReceipts *sql.Stmt
selectMaxReceiptID *sql.Stmt
purgeReceiptsStmt *sql.Stmt
}
func NewSqliteReceiptsTable(db *sql.DB, streamID *StreamIDStatements) (tables.Receipts, error) {
_, err := db.Exec(receiptsSchema)
if err != nil {
return nil, err
}
m := sqlutil.NewMigrator(db)
m.AddMigrations(sqlutil.Migration{
Version: "syncapi: fix sequences",
Up: deltas.UpFixSequences,
})
err = m.Up(context.Background())
if err != nil {
return nil, err
}
r := &receiptStatements{
db: db,
streamIDStatements: streamID,
}
return r, sqlutil.StatementList{
{&r.upsertReceipt, upsertReceipt},
{&r.selectRoomReceipts, selectRoomReceipts},
{&r.selectMaxReceiptID, selectMaxReceiptIDSQL},
{&r.purgeReceiptsStmt, purgeReceiptsSQL},
}.Prepare(db)
}
// UpsertReceipt creates new user receipts
func (r *receiptStatements) UpsertReceipt(ctx context.Context, txn *sql.Tx, roomId, receiptType, userId, eventId string, timestamp gomatrixserverlib.Timestamp) (pos types.StreamPosition, err error) {
pos, err = r.streamIDStatements.nextReceiptID(ctx, txn)
if err != nil {
return
}
stmt := sqlutil.TxStmt(txn, r.upsertReceipt)
_, err = stmt.ExecContext(ctx, pos, roomId, receiptType, userId, eventId, timestamp, pos, eventId, timestamp)
return
}
// SelectRoomReceiptsAfter select all receipts for a given room after a specific timestamp
func (r *receiptStatements) SelectRoomReceiptsAfter(ctx context.Context, txn *sql.Tx, roomIDs []string, streamPos types.StreamPosition) (types.StreamPosition, []types.OutputReceiptEvent, error) {
selectSQL := strings.Replace(selectRoomReceipts, "($2)", sqlutil.QueryVariadicOffset(len(roomIDs), 1), 1)
var lastPos types.StreamPosition
params := make([]interface{}, len(roomIDs)+1)
params[0] = streamPos
for k, v := range roomIDs {
params[k+1] = v
}
prep, err := r.db.Prepare(selectSQL)
if err != nil {
return 0, nil, fmt.Errorf("unable to prepare statement: %w", err)
}
defer internal.CloseAndLogIfError(ctx, prep, "SelectRoomReceiptsAfter: prep.close() failed")
rows, err := sqlutil.TxStmt(txn, prep).QueryContext(ctx, params...)
if err != nil {
return 0, nil, fmt.Errorf("unable to query room receipts: %w", err)
}
defer internal.CloseAndLogIfError(ctx, rows, "SelectRoomReceiptsAfter: rows.close() failed")
var res []types.OutputReceiptEvent
for rows.Next() {
r := types.OutputReceiptEvent{}
var id types.StreamPosition
err = rows.Scan(&id, &r.RoomID, &r.Type, &r.UserID, &r.EventID, &r.Timestamp)
if err != nil {
return 0, res, fmt.Errorf("unable to scan row to api.Receipts: %w", err)
}
res = append(res, r)
if id > lastPos {
lastPos = id
}
}
return lastPos, res, rows.Err()
}
func (s *receiptStatements) SelectMaxReceiptID(
ctx context.Context, txn *sql.Tx,
) (id int64, err error) {
var nullableID sql.NullInt64
stmt := sqlutil.TxStmt(txn, s.selectMaxReceiptID)
err = stmt.QueryRowContext(ctx).Scan(&nullableID)
if nullableID.Valid {
id = nullableID.Int64
}
return
}
func (s *receiptStatements) PurgeReceipts(
ctx context.Context, txn *sql.Tx, roomID string,
) error {
_, err := sqlutil.TxStmt(txn, s.purgeReceiptsStmt).ExecContext(ctx, roomID)
return err
}
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