580 lines
17 KiB
Go
580 lines
17 KiB
Go
// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
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// Copyright (C) 2019 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 main
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import (
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"encoding/json"
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"fmt"
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"sort"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/skip2/go-qrcode"
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log "maunium.net/go/maulogger/v2"
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"maunium.net/go/mautrix"
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"maunium.net/go/mautrix/format"
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"github.com/Rhymen/go-whatsapp"
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waProto "github.com/Rhymen/go-whatsapp/binary/proto"
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"maunium.net/go/mautrix-whatsapp/database"
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"maunium.net/go/mautrix-whatsapp/types"
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"maunium.net/go/mautrix-whatsapp/whatsapp-ext"
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)
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type User struct {
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*database.User
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Conn *whatsappExt.ExtendedConn
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bridge *Bridge
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log log.Logger
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Admin bool
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Whitelisted bool
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Connected bool
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ConnectionErrors int
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messages chan PortalMessage
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syncLock sync.Mutex
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}
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func (bridge *Bridge) GetUserByMXID(userID types.MatrixUserID) *User {
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_, isPuppet := bridge.ParsePuppetMXID(userID)
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if isPuppet || userID == bridge.Bot.UserID {
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return nil
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}
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bridge.usersLock.Lock()
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defer bridge.usersLock.Unlock()
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user, ok := bridge.usersByMXID[userID]
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if !ok {
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dbUser := bridge.DB.User.GetByMXID(userID)
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if dbUser == nil {
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dbUser = bridge.DB.User.New()
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dbUser.MXID = userID
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dbUser.Insert()
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}
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user = bridge.NewUser(dbUser)
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bridge.usersByMXID[user.MXID] = user
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if len(user.JID) > 0 {
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bridge.usersByJID[user.JID] = user
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}
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if len(user.ManagementRoom) > 0 {
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bridge.managementRooms[user.ManagementRoom] = user
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}
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}
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return user
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}
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func (bridge *Bridge) GetUserByJID(userID types.WhatsAppID) *User {
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bridge.usersLock.Lock()
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defer bridge.usersLock.Unlock()
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user, ok := bridge.usersByJID[userID]
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if !ok {
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dbUser := bridge.DB.User.GetByJID(userID)
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if dbUser == nil {
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return nil
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}
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user = bridge.NewUser(dbUser)
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bridge.usersByMXID[user.MXID] = user
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bridge.usersByJID[user.JID] = user
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if len(user.ManagementRoom) > 0 {
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bridge.managementRooms[user.ManagementRoom] = user
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}
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}
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return user
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}
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func (bridge *Bridge) GetAllUsers() []*User {
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bridge.usersLock.Lock()
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defer bridge.usersLock.Unlock()
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dbUsers := bridge.DB.User.GetAll()
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output := make([]*User, len(dbUsers))
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for index, dbUser := range dbUsers {
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user, ok := bridge.usersByMXID[dbUser.MXID]
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if !ok {
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user = bridge.NewUser(dbUser)
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bridge.usersByMXID[user.MXID] = user
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if len(user.JID) > 0 {
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bridge.usersByJID[user.JID] = user
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}
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if len(user.ManagementRoom) > 0 {
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bridge.managementRooms[user.ManagementRoom] = user
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}
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}
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output[index] = user
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}
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return output
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}
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func (bridge *Bridge) NewUser(dbUser *database.User) *User {
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user := &User{
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User: dbUser,
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bridge: bridge,
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log: bridge.Log.Sub("User").Sub(string(dbUser.MXID)),
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messages: make(chan PortalMessage, 256),
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}
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user.Whitelisted = user.bridge.Config.Bridge.Permissions.IsWhitelisted(user.MXID)
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user.Admin = user.bridge.Config.Bridge.Permissions.IsAdmin(user.MXID)
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go user.handleMessageLoop()
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return user
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}
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func (user *User) SetManagementRoom(roomID types.MatrixRoomID) {
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existingUser, ok := user.bridge.managementRooms[roomID]
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if ok {
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existingUser.ManagementRoom = ""
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existingUser.Update()
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}
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user.ManagementRoom = roomID
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user.bridge.managementRooms[user.ManagementRoom] = user
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user.Update()
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}
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func (user *User) SetSession(session *whatsapp.Session) {
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user.Session = session
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if session == nil {
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user.LastConnection = 0
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}
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user.Update()
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}
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func (user *User) Connect(evenIfNoSession bool) bool {
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if user.Conn != nil {
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return true
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} else if !evenIfNoSession && user.Session == nil {
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return false
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}
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user.log.Debugln("Connecting to WhatsApp")
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timeout := time.Duration(user.bridge.Config.Bridge.ConnectionTimeout)
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if timeout == 0 {
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timeout = 20
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}
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conn, err := whatsapp.NewConn(timeout * time.Second)
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if err != nil {
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user.log.Errorln("Failed to connect to WhatsApp:", err)
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msg := format.RenderMarkdown(fmt.Sprintf("\u26a0 Failed to connect to WhatsApp server. " +
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"This indicates a network problem on the bridge server. See bridge logs for more info."))
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_, _ = user.bridge.Bot.SendMessageEvent(user.ManagementRoom, mautrix.EventMessage, msg)
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return false
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}
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user.Conn = whatsappExt.ExtendConn(conn)
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_ = user.Conn.SetClientName("Mautrix-WhatsApp bridge", "mx-wa")
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user.log.Debugln("WhatsApp connection successful")
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user.Conn.AddHandler(user)
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return user.RestoreSession()
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}
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func (user *User) RestoreSession() bool {
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if user.Session != nil {
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sess, err := user.Conn.RestoreWithSession(*user.Session)
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if err == whatsapp.ErrAlreadyLoggedIn {
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return true
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} else if err != nil {
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user.log.Errorln("Failed to restore session:", err)
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msg := format.RenderMarkdown(fmt.Sprintf("\u26a0 Failed to connect to WhatsApp. Make sure WhatsApp "+
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"on your phone is reachable and use `%s reconnect` to try connecting again.",
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user.bridge.Config.Bridge.CommandPrefix))
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_, _ = user.bridge.Bot.SendMessageEvent(user.ManagementRoom, mautrix.EventMessage, msg)
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return false
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}
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user.Connected = true
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user.ConnectionErrors = 0
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user.SetSession(&sess)
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user.log.Debugln("Session restored successfully")
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go user.PostLogin()
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}
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return true
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}
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func (user *User) IsLoggedIn() bool {
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return user.Conn != nil
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}
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func (user *User) Login(ce *CommandEvent) {
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qrChan := make(chan string, 2)
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go func() {
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code := <-qrChan
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if code == "error" {
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return
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}
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qrCode, err := qrcode.Encode(code, qrcode.Low, 256)
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if err != nil {
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user.log.Errorln("Failed to encode QR code:", err)
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ce.Reply("Failed to encode QR code: %v", err)
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return
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}
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bot := user.bridge.AS.BotClient()
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resp, err := bot.UploadBytes(qrCode, "image/png")
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if err != nil {
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user.log.Errorln("Failed to upload QR code:", err)
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ce.Reply("Failed to upload QR code: %v", err)
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return
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}
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_, err = bot.SendImage(ce.RoomID, string(code), resp.ContentURI)
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if err != nil {
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user.log.Errorln("Failed to send QR code to user:", err)
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}
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}()
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session, err := user.Conn.Login(qrChan)
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if err != nil {
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qrChan <- "error"
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if err == whatsapp.ErrAlreadyLoggedIn {
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ce.Reply("You're already logged in.")
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} else if err == whatsapp.ErrLoginInProgress {
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ce.Reply("You have a login in progress already.")
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} else if err.Error() == "qr code scan timed out" {
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ce.Reply("QR code scan timed out. Please try again.")
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} else {
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user.log.Warnln("Failed to log in:", err)
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ce.Reply("Unknown error while logging in: %v", err)
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}
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return
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}
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user.Connected = true
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user.ConnectionErrors = 0
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user.JID = strings.Replace(user.Conn.Info.Wid, whatsappExt.OldUserSuffix, whatsappExt.NewUserSuffix, 1)
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user.SetSession(&session)
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ce.Reply("Successfully logged in, synchronizing chats...")
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go user.PostLogin()
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}
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type Chat struct {
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Portal *Portal
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LastMessageTime uint64
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Contact whatsapp.Contact
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}
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type ChatList []Chat
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func (cl ChatList) Len() int {
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return len(cl)
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}
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func (cl ChatList) Less(i, j int) bool {
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return cl[i].LastMessageTime < cl[i].LastMessageTime
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}
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func (cl ChatList) Swap(i, j int) {
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cl[i], cl[j] = cl[j], cl[i]
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}
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func (user *User) PostLogin() {
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user.syncLock.Lock()
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user.log.Debugln("Waiting a second for contacts to arrive")
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// Hacky way to wait for chats and contacts to arrive automatically
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time.Sleep(1 * time.Second)
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user.log.Debugln("Waited a second, have", len(user.Conn.Store.Chats), "chats and", len(user.Conn.Store.Contacts), "contacts")
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go user.syncPuppets()
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user.syncPortals(false)
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user.syncLock.Unlock()
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}
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func (user *User) syncPortals(createAll bool) {
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var chats ChatList
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for _, chat := range user.Conn.Store.Chats {
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ts, err := strconv.ParseUint(chat.LastMessageTime, 10, 64)
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if err != nil {
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user.log.Warnfln("Non-integer last message time in %s: %s", chat.Jid, chat.LastMessageTime)
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continue
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}
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chats = append(chats, Chat{
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Portal: user.GetPortalByJID(chat.Jid),
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Contact: user.Conn.Store.Contacts[chat.Jid],
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LastMessageTime: ts,
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})
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}
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sort.Sort(chats)
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limit := user.bridge.Config.Bridge.InitialChatSync
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if limit < 0 {
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limit = len(chats)
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}
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now := uint64(time.Now().Unix())
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for i, chat := range chats {
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if chat.LastMessageTime + user.bridge.Config.Bridge.SyncChatMaxAge < now {
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break
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}
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create := (chat.LastMessageTime >= user.LastConnection && user.LastConnection > 0) || i < limit
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if len(chat.Portal.MXID) > 0 || create || createAll {
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chat.Portal.Sync(user, chat.Contact)
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err := chat.Portal.BackfillHistory(user, chat.LastMessageTime)
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if err != nil {
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chat.Portal.log.Errorln("Error backfilling history:", err)
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}
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}
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}
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}
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func (user *User) syncPuppets() {
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for jid, contact := range user.Conn.Store.Contacts {
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if strings.HasSuffix(jid, whatsappExt.NewUserSuffix) {
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puppet := user.bridge.GetPuppetByJID(contact.Jid)
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puppet.Sync(user, contact)
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}
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}
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}
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func (user *User) updateLastConnectionIfNecessary() {
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if user.LastConnection+60 < uint64(time.Now().Unix()) {
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user.UpdateLastConnection()
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}
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}
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func (user *User) HandleError(err error) {
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user.log.Errorln("WhatsApp error:", err)
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var msg string
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if closed, ok := err.(*whatsapp.ErrConnectionClosed); ok {
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user.Connected = false
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if closed.Code == 1000 {
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// Normal closure
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return
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}
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user.ConnectionErrors++
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msg = fmt.Sprintf("Your WhatsApp connection was closed with websocket status code %d", closed.Code)
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} else if failed, ok := err.(*whatsapp.ErrConnectionFailed); ok {
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user.Connected = false
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user.ConnectionErrors++
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msg = fmt.Sprintf("Your WhatsApp connection failed: %v", failed.Err)
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} else {
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// Unknown error, probably mostly harmless
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return
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}
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if user.ConnectionErrors > user.bridge.Config.Bridge.MaxConnectionAttempts {
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content := format.RenderMarkdown(fmt.Sprintf("%s. Use the `reconnect` command to reconnect.", msg))
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_, _ = user.bridge.Bot.SendMessageEvent(user.ManagementRoom, mautrix.EventMessage, content)
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return
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}
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if user.bridge.Config.Bridge.ReportConnectionRetry {
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_, _ = user.bridge.Bot.SendNotice(user.ManagementRoom, fmt.Sprintf("%s. Reconnecting...", msg))
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// Don't want the same error to be repeated
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msg = ""
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}
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tries := 0
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for user.ConnectionErrors <= user.bridge.Config.Bridge.MaxConnectionAttempts {
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err = user.Conn.Restore()
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if err == nil {
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user.ConnectionErrors = 0
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user.Connected = true
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_, _ = user.bridge.Bot.SendNotice(user.ManagementRoom, "Reconnected successfully")
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go user.PostLogin()
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return
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}
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user.log.Errorln("Error while trying to reconnect after disconnection:", err)
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tries++
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user.ConnectionErrors++
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if user.ConnectionErrors <= user.bridge.Config.Bridge.MaxConnectionAttempts {
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if user.bridge.Config.Bridge.ReportConnectionRetry {
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_, _ = user.bridge.Bot.SendNotice(user.ManagementRoom,
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fmt.Sprintf("Reconnection attempt failed: %v. Retrying in 10 seconds...", err))
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}
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time.Sleep(10 * time.Second)
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}
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}
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if user.bridge.Config.Bridge.ReportConnectionRetry {
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msg = fmt.Sprintf("%d reconnection attempts failed. Use the `reconnect` command to try to reconnect manually.", tries)
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} else {
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msg = fmt.Sprintf("\u26a0 %sAdditionally, %d reconnection attempts failed. "+
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"Use the `reconnect` command to try to reconnect.", msg, tries)
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}
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content := format.RenderMarkdown(msg)
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_, _ = user.bridge.Bot.SendMessageEvent(user.ManagementRoom, mautrix.EventMessage, content)
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}
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func (user *User) ShouldCallSynchronously() bool {
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return true
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}
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func (user *User) HandleJSONParseError(err error) {
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user.log.Errorln("WhatsApp JSON parse error:", err)
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}
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func (user *User) PortalKey(jid types.WhatsAppID) database.PortalKey {
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return database.NewPortalKey(jid, user.JID)
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}
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func (user *User) GetPortalByJID(jid types.WhatsAppID) *Portal {
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return user.bridge.GetPortalByJID(user.PortalKey(jid))
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}
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func (user *User) handleMessageLoop() {
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for msg := range user.messages {
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user.syncLock.Lock()
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user.GetPortalByJID(msg.chat).messages <- msg
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user.syncLock.Unlock()
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}
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}
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func (user *User) putMessage(message PortalMessage) {
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select {
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case user.messages <- message:
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default:
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user.log.Warnln("Buffer is full, dropping message in", message.chat)
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}
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}
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func (user *User) HandleTextMessage(message whatsapp.TextMessage) {
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user.putMessage(PortalMessage{message.Info.RemoteJid, user, message, message.Info.Timestamp})
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}
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func (user *User) HandleImageMessage(message whatsapp.ImageMessage) {
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user.putMessage(PortalMessage{message.Info.RemoteJid, user, message, message.Info.Timestamp})
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}
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func (user *User) HandleVideoMessage(message whatsapp.VideoMessage) {
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user.putMessage(PortalMessage{message.Info.RemoteJid, user, message, message.Info.Timestamp})
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}
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func (user *User) HandleAudioMessage(message whatsapp.AudioMessage) {
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user.putMessage(PortalMessage{message.Info.RemoteJid, user, message, message.Info.Timestamp})
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}
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func (user *User) HandleDocumentMessage(message whatsapp.DocumentMessage) {
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user.putMessage(PortalMessage{message.Info.RemoteJid, user, message, message.Info.Timestamp})
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}
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func (user *User) HandleMessageRevoke(message whatsappExt.MessageRevocation) {
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user.putMessage(PortalMessage{message.RemoteJid, user, message, 0})
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}
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func (user *User) HandlePresence(info whatsappExt.Presence) {
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puppet := user.bridge.GetPuppetByJID(info.SenderJID)
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switch info.Status {
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case whatsappExt.PresenceUnavailable:
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_ = puppet.DefaultIntent().SetPresence("offline")
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case whatsappExt.PresenceAvailable:
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if len(puppet.typingIn) > 0 && puppet.typingAt+15 > time.Now().Unix() {
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portal := user.bridge.GetPortalByMXID(puppet.typingIn)
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_, _ = puppet.IntentFor(portal).UserTyping(puppet.typingIn, false, 0)
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puppet.typingIn = ""
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puppet.typingAt = 0
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} else {
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_ = puppet.DefaultIntent().SetPresence("online")
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}
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case whatsappExt.PresenceComposing:
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portal := user.GetPortalByJID(info.JID)
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if len(puppet.typingIn) > 0 && puppet.typingAt+15 > time.Now().Unix() {
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if puppet.typingIn == portal.MXID {
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return
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}
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_, _ = puppet.IntentFor(portal).UserTyping(puppet.typingIn, false, 0)
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}
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puppet.typingIn = portal.MXID
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puppet.typingAt = time.Now().Unix()
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_, _ = puppet.IntentFor(portal).UserTyping(portal.MXID, true, 15*1000)
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}
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}
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func (user *User) HandleMsgInfo(info whatsappExt.MsgInfo) {
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if (info.Command == whatsappExt.MsgInfoCommandAck || info.Command == whatsappExt.MsgInfoCommandAcks) && info.Acknowledgement == whatsappExt.AckMessageRead {
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portal := user.GetPortalByJID(info.ToJID)
|
|
if len(portal.MXID) == 0 {
|
|
return
|
|
}
|
|
|
|
go func() {
|
|
intent := user.bridge.GetPuppetByJID(info.SenderJID).IntentFor(portal)
|
|
for _, id := range info.IDs {
|
|
msg := user.bridge.DB.Message.GetByJID(portal.Key, id)
|
|
if msg == nil {
|
|
continue
|
|
}
|
|
|
|
err := intent.MarkRead(portal.MXID, msg.MXID)
|
|
if err != nil {
|
|
user.log.Warnln("Failed to mark message %s as read by %s: %v", msg.MXID, info.SenderJID, err)
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
}
|
|
|
|
func (user *User) HandleCommand(cmd whatsappExt.Command) {
|
|
switch cmd.Type {
|
|
case whatsappExt.CommandPicture:
|
|
if strings.HasSuffix(cmd.JID, whatsappExt.NewUserSuffix) {
|
|
puppet := user.bridge.GetPuppetByJID(cmd.JID)
|
|
go puppet.UpdateAvatar(user, cmd.ProfilePicInfo)
|
|
} else {
|
|
portal := user.GetPortalByJID(cmd.JID)
|
|
go portal.UpdateAvatar(user, cmd.ProfilePicInfo)
|
|
}
|
|
case whatsappExt.CommandDisconnect:
|
|
var msg string
|
|
if cmd.Kind == "replaced" {
|
|
msg = "\u26a0 Your WhatsApp connection was closed by the server because you opened another WhatsApp Web client.\n\n" +
|
|
"Use the `reconnect` command to disconnect the other client and resume bridging."
|
|
} else {
|
|
user.log.Warnln("Unknown kind of disconnect:", string(cmd.Raw))
|
|
msg = fmt.Sprintf("\u26a0 Your WhatsApp connection was closed by the server (reason code: %s).\n\n"+
|
|
"Use the `reconnect` command to reconnect.", cmd.Kind)
|
|
}
|
|
go user.bridge.Bot.SendMessageEvent(user.ManagementRoom, mautrix.EventMessage, format.RenderMarkdown(msg))
|
|
}
|
|
}
|
|
|
|
func (user *User) HandleChatUpdate(cmd whatsappExt.ChatUpdate) {
|
|
if cmd.Command != whatsappExt.ChatUpdateCommandAction {
|
|
return
|
|
}
|
|
|
|
portal := user.GetPortalByJID(cmd.JID)
|
|
if len(portal.MXID) == 0 {
|
|
return
|
|
}
|
|
|
|
switch cmd.Data.Action {
|
|
case whatsappExt.ChatActionNameChange:
|
|
go portal.UpdateName(cmd.Data.NameChange.Name, cmd.Data.SenderJID)
|
|
case whatsappExt.ChatActionAddTopic:
|
|
go portal.UpdateTopic(cmd.Data.AddTopic.Topic, cmd.Data.SenderJID)
|
|
case whatsappExt.ChatActionRemoveTopic:
|
|
go portal.UpdateTopic("", cmd.Data.SenderJID)
|
|
case whatsappExt.ChatActionPromote:
|
|
go portal.ChangeAdminStatus(cmd.Data.PermissionChange.JIDs, true)
|
|
case whatsappExt.ChatActionDemote:
|
|
go portal.ChangeAdminStatus(cmd.Data.PermissionChange.JIDs, false)
|
|
case whatsappExt.ChatActionAnnounce:
|
|
go portal.RestrictMessageSending(cmd.Data.Announce)
|
|
case whatsappExt.ChatActionRestrict:
|
|
go portal.RestrictMetadataChanges(cmd.Data.Restrict)
|
|
}
|
|
}
|
|
|
|
func (user *User) HandleJsonMessage(message string) {
|
|
var msg json.RawMessage
|
|
err := json.Unmarshal([]byte(message), &msg)
|
|
if err != nil {
|
|
return
|
|
}
|
|
user.log.Debugln("JSON message:", message)
|
|
user.updateLastConnectionIfNecessary()
|
|
}
|
|
|
|
func (user *User) HandleRawMessage(message *waProto.WebMessageInfo) {
|
|
user.updateLastConnectionIfNecessary()
|
|
}
|