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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"
"encoding/json"
"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 inviteEventsSchema = `
CREATE TABLE IF NOT EXISTS syncapi_invite_events (
id INTEGER PRIMARY KEY,
event_id TEXT NOT NULL,
room_id TEXT NOT NULL,
target_user_id TEXT NOT NULL,
headered_event_json TEXT NOT NULL,
deleted BOOL NOT NULL
);
CREATE INDEX IF NOT EXISTS syncapi_invites_target_user_id_idx ON syncapi_invite_events (target_user_id, id);
CREATE INDEX IF NOT EXISTS syncapi_invites_event_id_idx ON syncapi_invite_events (event_id);
`
const insertInviteEventSQL = "" +
"INSERT INTO syncapi_invite_events" +
" (id, room_id, event_id, target_user_id, headered_event_json, deleted)" +
" VALUES ($1, $2, $3, $4, $5, false)"
const deleteInviteEventSQL = "" +
"UPDATE syncapi_invite_events SET deleted=true, id=$1 WHERE event_id = $2"
const selectInviteEventsInRangeSQL = "" +
"SELECT room_id, headered_event_json, deleted FROM syncapi_invite_events" +
" WHERE target_user_id = $1 AND id > $2 AND id <= $3" +
" ORDER BY id DESC"
const selectMaxInviteIDSQL = "" +
"SELECT MAX(id) FROM syncapi_invite_events"
type inviteEventsStatements struct {
db *sql.DB
writer *sqlutil.TransactionWriter
streamIDStatements *streamIDStatements
insertInviteEventStmt *sql.Stmt
selectInviteEventsInRangeStmt *sql.Stmt
deleteInviteEventStmt *sql.Stmt
selectMaxInviteIDStmt *sql.Stmt
}
func NewSqliteInvitesTable(db *sql.DB, streamID *streamIDStatements) (tables.Invites, error) {
s := &inviteEventsStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
streamIDStatements: streamID,
}
_, err := db.Exec(inviteEventsSchema)
if err != nil {
return nil, err
}
if s.insertInviteEventStmt, err = db.Prepare(insertInviteEventSQL); err != nil {
return nil, err
}
if s.selectInviteEventsInRangeStmt, err = db.Prepare(selectInviteEventsInRangeSQL); err != nil {
return nil, err
}
if s.deleteInviteEventStmt, err = db.Prepare(deleteInviteEventSQL); err != nil {
return nil, err
}
if s.selectMaxInviteIDStmt, err = db.Prepare(selectMaxInviteIDSQL); err != nil {
return nil, err
}
return s, nil
}
func (s *inviteEventsStatements) InsertInviteEvent(
ctx context.Context, txn *sql.Tx, inviteEvent gomatrixserverlib.HeaderedEvent,
) (streamPos types.StreamPosition, err error) {
err = s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
var err error
streamPos, err = s.streamIDStatements.nextStreamID(ctx, txn)
if err != nil {
return err
}
var headeredJSON []byte
headeredJSON, err = json.Marshal(inviteEvent)
if err != nil {
return err
}
_, err = txn.Stmt(s.insertInviteEventStmt).ExecContext(
ctx,
streamPos,
inviteEvent.RoomID(),
inviteEvent.EventID(),
*inviteEvent.StateKey(),
headeredJSON,
)
return err
})
return
}
func (s *inviteEventsStatements) DeleteInviteEvent(
ctx context.Context, inviteEventID string,
) (types.StreamPosition, error) {
var streamPos types.StreamPosition
err := s.writer.Do(s.db, nil, func(txn *sql.Tx) error {
var err error
streamPos, err = s.streamIDStatements.nextStreamID(ctx, nil)
if err != nil {
return err
}
_, err = s.deleteInviteEventStmt.ExecContext(ctx, streamPos, inviteEventID)
return err
})
return streamPos, err
}
// selectInviteEventsInRange returns a map of room ID to invite event for the
// active invites for the target user ID in the supplied range.
func (s *inviteEventsStatements) SelectInviteEventsInRange(
ctx context.Context, txn *sql.Tx, targetUserID string, r types.Range,
) (map[string]gomatrixserverlib.HeaderedEvent, map[string]gomatrixserverlib.HeaderedEvent, error) {
stmt := sqlutil.TxStmt(txn, s.selectInviteEventsInRangeStmt)
rows, err := stmt.QueryContext(ctx, targetUserID, r.Low(), r.High())
if err != nil {
return nil, nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "selectInviteEventsInRange: rows.close() failed")
result := map[string]gomatrixserverlib.HeaderedEvent{}
retired := map[string]gomatrixserverlib.HeaderedEvent{}
for rows.Next() {
var (
roomID string
eventJSON []byte
deleted bool
)
if err = rows.Scan(&roomID, &eventJSON, &deleted); err != nil {
return nil, nil, err
}
var event gomatrixserverlib.HeaderedEvent
if err := json.Unmarshal(eventJSON, &event); err != nil {
return nil, nil, err
}
if deleted {
retired[roomID] = event
} else {
result[roomID] = event
}
}
return result, retired, nil
}
func (s *inviteEventsStatements) SelectMaxInviteID(
ctx context.Context, txn *sql.Tx,
) (id int64, err error) {
var nullableID sql.NullInt64
stmt := sqlutil.TxStmt(txn, s.selectMaxInviteIDStmt)
err = stmt.QueryRowContext(ctx).Scan(&nullableID)
if nullableID.Valid {
id = nullableID.Int64
}
return
}
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