149 lines
4.2 KiB
Go
149 lines
4.2 KiB
Go
// Copyright 2017-2018 New Vector Ltd
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// Copyright 2019-2020 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package postgres
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import (
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"context"
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"database/sql"
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"github.com/matrix-org/dendrite/common"
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"github.com/matrix-org/gomatrixserverlib"
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)
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const inviteEventsSchema = `
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CREATE TABLE IF NOT EXISTS syncapi_invite_events (
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id BIGINT PRIMARY KEY DEFAULT nextval('syncapi_stream_id'),
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event_id TEXT NOT NULL,
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room_id TEXT NOT NULL,
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target_user_id TEXT NOT NULL,
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event_json TEXT NOT NULL
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);
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-- For looking up the invites for a given user.
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CREATE INDEX IF NOT EXISTS syncapi_invites_target_user_id_idx
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ON syncapi_invite_events (target_user_id, id);
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-- For deleting old invites
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CREATE INDEX IF NOT EXISTS syncapi_invites_event_id_idx
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ON syncapi_invite_events (event_id);
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`
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const insertInviteEventSQL = "" +
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"INSERT INTO syncapi_invite_events (" +
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" room_id, event_id, target_user_id, event_json" +
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") VALUES ($1, $2, $3, $4) RETURNING id"
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const deleteInviteEventSQL = "" +
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"DELETE FROM syncapi_invite_events WHERE event_id = $1"
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const selectInviteEventsInRangeSQL = "" +
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"SELECT room_id, event_json FROM syncapi_invite_events" +
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" WHERE target_user_id = $1 AND id > $2 AND id <= $3" +
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" ORDER BY id DESC"
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const selectMaxInviteIDSQL = "" +
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"SELECT MAX(id) FROM syncapi_invite_events"
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type inviteEventsStatements struct {
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insertInviteEventStmt *sql.Stmt
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selectInviteEventsInRangeStmt *sql.Stmt
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deleteInviteEventStmt *sql.Stmt
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selectMaxInviteIDStmt *sql.Stmt
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}
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func (s *inviteEventsStatements) prepare(db *sql.DB) (err error) {
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_, err = db.Exec(inviteEventsSchema)
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if err != nil {
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return
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}
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if s.insertInviteEventStmt, err = db.Prepare(insertInviteEventSQL); err != nil {
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return
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}
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if s.selectInviteEventsInRangeStmt, err = db.Prepare(selectInviteEventsInRangeSQL); err != nil {
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return
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}
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if s.deleteInviteEventStmt, err = db.Prepare(deleteInviteEventSQL); err != nil {
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return
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}
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if s.selectMaxInviteIDStmt, err = db.Prepare(selectMaxInviteIDSQL); err != nil {
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return
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}
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return
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}
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func (s *inviteEventsStatements) insertInviteEvent(
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ctx context.Context, inviteEvent gomatrixserverlib.Event,
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) (streamPos int64, err error) {
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err = s.insertInviteEventStmt.QueryRowContext(
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ctx,
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inviteEvent.RoomID(),
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inviteEvent.EventID(),
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*inviteEvent.StateKey(),
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inviteEvent.JSON(),
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).Scan(&streamPos)
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return
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}
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func (s *inviteEventsStatements) deleteInviteEvent(
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ctx context.Context, inviteEventID string,
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) error {
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_, err := s.deleteInviteEventStmt.ExecContext(ctx, inviteEventID)
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return err
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}
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// selectInviteEventsInRange returns a map of room ID to invite event for the
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// active invites for the target user ID in the supplied range.
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func (s *inviteEventsStatements) selectInviteEventsInRange(
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ctx context.Context, txn *sql.Tx, targetUserID string, startPos, endPos int64,
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) (map[string]gomatrixserverlib.Event, error) {
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stmt := common.TxStmt(txn, s.selectInviteEventsInRangeStmt)
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rows, err := stmt.QueryContext(ctx, targetUserID, startPos, endPos)
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if err != nil {
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return nil, err
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}
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defer rows.Close() // nolint: errcheck
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result := map[string]gomatrixserverlib.Event{}
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for rows.Next() {
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var (
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roomID string
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eventJSON []byte
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)
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if err = rows.Scan(&roomID, &eventJSON); err != nil {
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return nil, err
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}
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event, err := gomatrixserverlib.NewEventFromTrustedJSON(eventJSON, false)
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if err != nil {
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return nil, err
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}
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result[roomID] = event
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}
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return result, nil
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}
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func (s *inviteEventsStatements) selectMaxInviteID(
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ctx context.Context, txn *sql.Tx,
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) (id int64, err error) {
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var nullableID sql.NullInt64
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stmt := common.TxStmt(txn, s.selectMaxInviteIDStmt)
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err = stmt.QueryRowContext(ctx).Scan(&nullableID)
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if nullableID.Valid {
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id = nullableID.Int64
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}
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return
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}
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