126 lines
4.2 KiB
Go
126 lines
4.2 KiB
Go
// mautrix-signal - A Matrix-signal puppeting bridge.
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// Copyright (C) 2023 Scott Weber, Tulir Asokan
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package database
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import (
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"context"
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"database/sql"
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"time"
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"go.mau.fi/util/dbutil"
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"maunium.net/go/mautrix/id"
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)
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const (
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getUnscheduledDisappearingMessagesForRoomQuery = `
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SELECT room_id, mxid, expiration_seconds, expiration_ts
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FROM disappearing_message WHERE expiration_ts IS NULL AND room_id = $1
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`
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getExpiredDisappearingMessagesQuery = `
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SELECT room_id, mxid, expiration_seconds, expiration_ts
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FROM disappearing_message WHERE expiration_ts IS NOT NULL AND expiration_ts <= $1
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`
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getNextDisappearingMessageQuery = `
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SELECT room_id, mxid, expiration_seconds, expiration_ts
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FROM disappearing_message WHERE expiration_ts IS NOT NULL ORDER BY expiration_ts ASC LIMIT 1
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`
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insertDisappearingMessageQuery = `
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INSERT INTO disappearing_message (room_id, mxid, expiration_seconds, expiration_ts) VALUES ($1, $2, $3, $4)
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`
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updateDisappearingMessageQuery = `
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UPDATE disappearing_message SET expiration_ts=$2 WHERE mxid=$1
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`
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deleteDisappearingMessageQuery = `
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DELETE FROM disappearing_message WHERE mxid=$1
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`
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)
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type DisappearingMessageQuery struct {
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*dbutil.QueryHelper[*DisappearingMessage]
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}
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type DisappearingMessage struct {
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qh *dbutil.QueryHelper[*DisappearingMessage]
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RoomID id.RoomID
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EventID id.EventID
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ExpireIn time.Duration
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ExpireAt time.Time
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}
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func newDisappearingMessage(qh *dbutil.QueryHelper[*DisappearingMessage]) *DisappearingMessage {
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return &DisappearingMessage{qh: qh}
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}
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func (dmq *DisappearingMessageQuery) NewWithValues(roomID id.RoomID, eventID id.EventID, expireIn time.Duration, expireAt time.Time) *DisappearingMessage {
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return &DisappearingMessage{
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qh: dmq.QueryHelper,
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RoomID: roomID,
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EventID: eventID,
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ExpireIn: expireIn,
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ExpireAt: expireAt,
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}
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}
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func (dmq *DisappearingMessageQuery) GetUnscheduledForRoom(ctx context.Context, roomID id.RoomID) ([]*DisappearingMessage, error) {
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return dmq.QueryMany(ctx, getUnscheduledDisappearingMessagesForRoomQuery, roomID)
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}
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func (dmq *DisappearingMessageQuery) GetExpiredMessages(ctx context.Context) ([]*DisappearingMessage, error) {
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return dmq.QueryMany(ctx, getExpiredDisappearingMessagesQuery, time.Now().Unix()+1)
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}
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func (dmq *DisappearingMessageQuery) GetNextScheduledMessage(ctx context.Context) (*DisappearingMessage, error) {
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return dmq.QueryOne(ctx, getNextDisappearingMessageQuery)
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}
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func (msg *DisappearingMessage) Scan(row dbutil.Scannable) (*DisappearingMessage, error) {
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var expireIn int64
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var expireAt sql.NullInt64
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err := row.Scan(&msg.RoomID, &msg.EventID, &expireIn, &expireAt)
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if err != nil {
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return nil, err
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}
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msg.ExpireIn = time.Duration(expireIn) * time.Second
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if expireAt.Valid {
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msg.ExpireAt = time.Unix(expireAt.Int64, 0)
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}
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return msg, nil
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}
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func (msg *DisappearingMessage) sqlVariables() []any {
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var expireAt sql.NullInt64
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if !msg.ExpireAt.IsZero() {
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expireAt.Valid = true
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expireAt.Int64 = msg.ExpireAt.Unix()
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}
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return []any{msg.RoomID, msg.EventID, int64(msg.ExpireIn.Seconds()), expireAt}
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}
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func (msg *DisappearingMessage) Insert(ctx context.Context) error {
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return msg.qh.Exec(ctx, insertDisappearingMessageQuery, msg.sqlVariables()...)
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}
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func (msg *DisappearingMessage) StartExpirationTimer(ctx context.Context) error {
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msg.ExpireAt = time.Now().Add(msg.ExpireIn)
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return msg.qh.Exec(ctx, updateDisappearingMessageQuery, msg.EventID, msg.ExpireAt.Unix())
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}
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func (msg *DisappearingMessage) Delete(ctx context.Context) error {
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return msg.qh.Exec(ctx, deleteDisappearingMessageQuery, msg.EventID)
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}
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