mautrix-whatsapp/database/message.go
Tulir Asokan 1105530c9a Add initial support for WhatsApp message edits
Sending will be disabled by default until official WhatsApp clients
start rendering edits. The implementation may also be incorrect.
2022-10-08 17:47:52 +03:00

239 lines
7.3 KiB
Go

// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
// Copyright (C) 2021 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package database
import (
"database/sql"
"errors"
"strings"
"time"
log "maunium.net/go/maulogger/v2"
"maunium.net/go/mautrix/id"
"maunium.net/go/mautrix/util/dbutil"
"go.mau.fi/whatsmeow/types"
)
type MessageQuery struct {
db *Database
log log.Logger
}
func (mq *MessageQuery) New() *Message {
return &Message{
db: mq.db,
log: mq.log,
}
}
const (
getAllMessagesQuery = `
SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, sent, type, error, broadcast_list_jid FROM message
WHERE chat_jid=$1 AND chat_receiver=$2
`
getMessageByJIDQuery = `
SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, sent, type, error, broadcast_list_jid FROM message
WHERE chat_jid=$1 AND chat_receiver=$2 AND jid=$3
`
getMessageByMXIDQuery = `
SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, sent, type, error, broadcast_list_jid FROM message
WHERE mxid=$1
`
getLastMessageInChatQuery = `
SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, sent, type, error, broadcast_list_jid FROM message
WHERE chat_jid=$1 AND chat_receiver=$2 AND timestamp<=$3 AND sent=true ORDER BY timestamp DESC LIMIT 1
`
getFirstMessageInChatQuery = `
SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, sent, type, error, broadcast_list_jid FROM message
WHERE chat_jid=$1 AND chat_receiver=$2 AND sent=true ORDER BY timestamp ASC LIMIT 1
`
getMessagesBetweenQuery = `
SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, sent, type, error, broadcast_list_jid FROM message
WHERE chat_jid=$1 AND chat_receiver=$2 AND timestamp>$3 AND timestamp<=$4 AND sent=true AND error='' ORDER BY timestamp ASC
`
)
func (mq *MessageQuery) GetAll(chat PortalKey) (messages []*Message) {
rows, err := mq.db.Query(getAllMessagesQuery, chat.JID, chat.Receiver)
if err != nil || rows == nil {
return nil
}
for rows.Next() {
messages = append(messages, mq.New().Scan(rows))
}
return
}
func (mq *MessageQuery) GetByJID(chat PortalKey, jid types.MessageID) *Message {
return mq.maybeScan(mq.db.QueryRow(getMessageByJIDQuery, chat.JID, chat.Receiver, jid))
}
func (mq *MessageQuery) GetByMXID(mxid id.EventID) *Message {
return mq.maybeScan(mq.db.QueryRow(getMessageByMXIDQuery, mxid))
}
func (mq *MessageQuery) GetLastInChat(chat PortalKey) *Message {
return mq.GetLastInChatBefore(chat, time.Now().Add(60*time.Second))
}
func (mq *MessageQuery) GetLastInChatBefore(chat PortalKey, maxTimestamp time.Time) *Message {
msg := mq.maybeScan(mq.db.QueryRow(getLastMessageInChatQuery, chat.JID, chat.Receiver, maxTimestamp.Unix()))
if msg == nil || msg.Timestamp.IsZero() {
// Old db, we don't know what the last message is.
return nil
}
return msg
}
func (mq *MessageQuery) GetFirstInChat(chat PortalKey) *Message {
return mq.maybeScan(mq.db.QueryRow(getFirstMessageInChatQuery, chat.JID, chat.Receiver))
}
func (mq *MessageQuery) GetMessagesBetween(chat PortalKey, minTimestamp, maxTimestamp time.Time) (messages []*Message) {
rows, err := mq.db.Query(getMessagesBetweenQuery, chat.JID, chat.Receiver, minTimestamp.Unix(), maxTimestamp.Unix())
if err != nil || rows == nil {
return nil
}
for rows.Next() {
messages = append(messages, mq.New().Scan(rows))
}
return
}
func (mq *MessageQuery) maybeScan(row *sql.Row) *Message {
if row == nil {
return nil
}
return mq.New().Scan(row)
}
type MessageErrorType string
const (
MsgNoError MessageErrorType = ""
MsgErrDecryptionFailed MessageErrorType = "decryption_failed"
MsgErrMediaNotFound MessageErrorType = "media_not_found"
)
type MessageType string
const (
MsgUnknown MessageType = ""
MsgFake MessageType = "fake"
MsgNormal MessageType = "message"
MsgReaction MessageType = "reaction"
MsgEdit MessageType = "edit"
)
type Message struct {
db *Database
log log.Logger
Chat PortalKey
JID types.MessageID
MXID id.EventID
Sender types.JID
Timestamp time.Time
Sent bool
Type MessageType
Error MessageErrorType
BroadcastListJID types.JID
}
func (msg *Message) IsFakeMXID() bool {
return strings.HasPrefix(msg.MXID.String(), "net.maunium.whatsapp.fake::")
}
func (msg *Message) IsFakeJID() bool {
return strings.HasPrefix(msg.JID, "FAKE::") || msg.JID == string(msg.MXID)
}
func (msg *Message) Scan(row dbutil.Scannable) *Message {
var ts int64
err := row.Scan(&msg.Chat.JID, &msg.Chat.Receiver, &msg.JID, &msg.MXID, &msg.Sender, &ts, &msg.Sent, &msg.Type, &msg.Error, &msg.BroadcastListJID)
if err != nil {
if !errors.Is(err, sql.ErrNoRows) {
msg.log.Errorln("Database scan failed:", err)
}
return nil
}
if ts != 0 {
msg.Timestamp = time.Unix(ts, 0)
}
return msg
}
func (msg *Message) Insert(txn dbutil.Transaction) {
var sender interface{} = msg.Sender
// Slightly hacky hack to allow inserting empty senders (used for post-backfill dummy events)
if msg.Sender.IsEmpty() {
sender = ""
}
query := `
INSERT INTO message
(chat_jid, chat_receiver, jid, mxid, sender, timestamp, sent, type, error, broadcast_list_jid)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)
`
args := []interface{}{
msg.Chat.JID, msg.Chat.Receiver, msg.JID, msg.MXID, sender, msg.Timestamp.Unix(), msg.Sent, msg.Type, msg.Error, msg.BroadcastListJID,
}
var err error
if txn != nil {
_, err = txn.Exec(query, args...)
} else {
_, err = msg.db.Exec(query, args...)
}
if err != nil {
msg.log.Warnfln("Failed to insert %s@%s: %v", msg.Chat, msg.JID, err)
}
}
func (msg *Message) MarkSent(ts time.Time) {
msg.Sent = true
msg.Timestamp = ts
_, err := msg.db.Exec("UPDATE message SET sent=true, timestamp=$1 WHERE chat_jid=$2 AND chat_receiver=$3 AND jid=$4", ts.Unix(), msg.Chat.JID, msg.Chat.Receiver, msg.JID)
if err != nil {
msg.log.Warnfln("Failed to update %s@%s: %v", msg.Chat, msg.JID, err)
}
}
func (msg *Message) UpdateMXID(txn dbutil.Transaction, mxid id.EventID, newType MessageType, newError MessageErrorType) {
msg.MXID = mxid
msg.Type = newType
msg.Error = newError
query := "UPDATE message SET mxid=$1, type=$2, error=$3 WHERE chat_jid=$4 AND chat_receiver=$5 AND jid=$6"
args := []interface{}{mxid, newType, newError, msg.Chat.JID, msg.Chat.Receiver, msg.JID}
var err error
if txn != nil {
_, err = txn.Exec(query, args...)
} else {
_, err = msg.db.Exec(query, args...)
}
if err != nil {
msg.log.Warnfln("Failed to update %s@%s: %v", msg.Chat, msg.JID, err)
}
}
func (msg *Message) Delete() {
_, err := msg.db.Exec("DELETE FROM message WHERE chat_jid=$1 AND chat_receiver=$2 AND jid=$3", msg.Chat.JID, msg.Chat.Receiver, msg.JID)
if err != nil {
msg.log.Warnfln("Failed to delete %s@%s: %v", msg.Chat, msg.JID, err)
}
}