146 lines
4.2 KiB
Go
146 lines
4.2 KiB
Go
// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
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// Copyright (C) 2020 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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"bytes"
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"database/sql"
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"encoding/json"
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waProto "github.com/Rhymen/go-whatsapp/binary/proto"
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log "maunium.net/go/maulogger/v2"
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"maunium.net/go/mautrix-whatsapp/types"
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"maunium.net/go/mautrix/id"
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)
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type MessageQuery struct {
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db *Database
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log log.Logger
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}
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func (mq *MessageQuery) New() *Message {
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return &Message{
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db: mq.db,
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log: mq.log,
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}
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}
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func (mq *MessageQuery) GetAll(chat PortalKey) (messages []*Message) {
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rows, err := mq.db.Query("SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, content FROM message WHERE chat_jid=$1 AND chat_receiver=$2", chat.JID, chat.Receiver)
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if err != nil || rows == nil {
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return nil
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}
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defer rows.Close()
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for rows.Next() {
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messages = append(messages, mq.New().Scan(rows))
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}
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return
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}
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func (mq *MessageQuery) GetByJID(chat PortalKey, jid types.WhatsAppMessageID) *Message {
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return mq.get("SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, content " +
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"FROM message WHERE chat_jid=$1 AND chat_receiver=$2 AND jid=$3", chat.JID, chat.Receiver, jid)
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}
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func (mq *MessageQuery) GetByMXID(mxid id.EventID) *Message {
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return mq.get("SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, content " +
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"FROM message WHERE mxid=$1", mxid)
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}
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func (mq *MessageQuery) GetLastInChat(chat PortalKey) *Message {
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msg := mq.get("SELECT chat_jid, chat_receiver, jid, mxid, sender, timestamp, content " +
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"FROM message WHERE chat_jid=$1 AND chat_receiver=$2 ORDER BY timestamp DESC LIMIT 1", chat.JID, chat.Receiver)
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if msg == nil || msg.Timestamp == 0 {
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// Old db, we don't know what the last message is.
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return nil
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}
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return msg
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}
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func (mq *MessageQuery) get(query string, args ...interface{}) *Message {
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row := mq.db.QueryRow(query, args...)
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if row == nil {
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return nil
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}
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return mq.New().Scan(row)
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}
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type Message struct {
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db *Database
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log log.Logger
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Chat PortalKey
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JID types.WhatsAppMessageID
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MXID id.EventID
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Sender types.WhatsAppID
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Timestamp uint64
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Content *waProto.Message
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}
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func (msg *Message) Scan(row Scannable) *Message {
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var content []byte
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err := row.Scan(&msg.Chat.JID, &msg.Chat.Receiver, &msg.JID, &msg.MXID, &msg.Sender, &msg.Timestamp, &content)
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if err != nil {
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if err != sql.ErrNoRows {
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msg.log.Errorln("Database scan failed:", err)
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}
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return nil
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}
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msg.decodeBinaryContent(content)
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return msg
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}
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func (msg *Message) decodeBinaryContent(content []byte) {
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msg.Content = &waProto.Message{}
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reader := bytes.NewReader(content)
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dec := json.NewDecoder(reader)
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err := dec.Decode(msg.Content)
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if err != nil {
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msg.log.Warnln("Failed to decode message content:", err)
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}
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}
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func (msg *Message) encodeBinaryContent() []byte {
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var buf bytes.Buffer
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enc := json.NewEncoder(&buf)
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err := enc.Encode(msg.Content)
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if err != nil {
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msg.log.Warnln("Failed to encode message content:", err)
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}
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return buf.Bytes()
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}
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func (msg *Message) Insert() {
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_, err := msg.db.Exec("INSERT INTO message (chat_jid, chat_receiver, jid, mxid, sender, timestamp, content) " +
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"VALUES ($1, $2, $3, $4, $5, $6, $7)",
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msg.Chat.JID, msg.Chat.Receiver, msg.JID, msg.MXID, msg.Sender, msg.Timestamp, msg.encodeBinaryContent())
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if err != nil {
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msg.log.Warnfln("Failed to insert %s@%s: %v", msg.Chat, msg.JID, err)
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}
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}
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func (msg *Message) Delete() {
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_, 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)
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if err != nil {
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msg.log.Warnfln("Failed to delete %s@%s: %v", msg.Chat, msg.JID, err)
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}
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}
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