// 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 .
package main
import (
"bytes"
"context"
"crypto/sha256"
"encoding/hex"
"encoding/json"
"errors"
"fmt"
"image"
"image/color"
_ "image/gif"
"image/jpeg"
"image/png"
"io"
"math"
"mime"
"net/http"
"runtime/debug"
"strconv"
"strings"
"sync"
"time"
"github.com/chai2010/webp"
"github.com/tidwall/gjson"
"golang.org/x/image/draw"
"google.golang.org/protobuf/proto"
log "maunium.net/go/maulogger/v2"
"maunium.net/go/mautrix"
"maunium.net/go/mautrix/appservice"
"maunium.net/go/mautrix/bridge"
"maunium.net/go/mautrix/bridge/bridgeconfig"
"maunium.net/go/mautrix/crypto/attachment"
"maunium.net/go/mautrix/event"
"maunium.net/go/mautrix/format"
"maunium.net/go/mautrix/id"
"maunium.net/go/mautrix/util"
"maunium.net/go/mautrix/util/dbutil"
"maunium.net/go/mautrix/util/ffmpeg"
"maunium.net/go/mautrix/util/variationselector"
"go.mau.fi/whatsmeow"
waProto "go.mau.fi/whatsmeow/binary/proto"
"go.mau.fi/whatsmeow/types"
"go.mau.fi/whatsmeow/types/events"
"maunium.net/go/mautrix-whatsapp/database"
)
const StatusBroadcastTopic = "WhatsApp status updates from your contacts"
const StatusBroadcastName = "WhatsApp Status Broadcast"
const BroadcastTopic = "WhatsApp broadcast list"
const UnnamedBroadcastName = "Unnamed broadcast list"
const PrivateChatTopic = "WhatsApp private chat"
var ErrStatusBroadcastDisabled = errors.New("status bridging is disabled")
func (br *WABridge) GetPortalByMXID(mxid id.RoomID) *Portal {
br.portalsLock.Lock()
defer br.portalsLock.Unlock()
portal, ok := br.portalsByMXID[mxid]
if !ok {
return br.loadDBPortal(br.DB.Portal.GetByMXID(mxid), nil)
}
return portal
}
func (br *WABridge) GetIPortal(mxid id.RoomID) bridge.Portal {
p := br.GetPortalByMXID(mxid)
if p == nil {
return nil
}
return p
}
func (portal *Portal) IsEncrypted() bool {
return portal.Encrypted
}
func (portal *Portal) MarkEncrypted() {
portal.Encrypted = true
portal.Update(nil)
}
func (portal *Portal) ReceiveMatrixEvent(user bridge.User, evt *event.Event) {
if user.GetPermissionLevel() >= bridgeconfig.PermissionLevelUser || portal.HasRelaybot() {
portal.matrixMessages <- PortalMatrixMessage{user: user.(*User), evt: evt, receivedAt: time.Now()}
}
}
func (br *WABridge) GetPortalByJID(key database.PortalKey) *Portal {
br.portalsLock.Lock()
defer br.portalsLock.Unlock()
portal, ok := br.portalsByJID[key]
if !ok {
return br.loadDBPortal(br.DB.Portal.GetByJID(key), &key)
}
return portal
}
func (br *WABridge) GetAllPortals() []*Portal {
return br.dbPortalsToPortals(br.DB.Portal.GetAll())
}
func (br *WABridge) GetAllIPortals() (iportals []bridge.Portal) {
portals := br.GetAllPortals()
iportals = make([]bridge.Portal, len(portals))
for i, portal := range portals {
iportals[i] = portal
}
return iportals
}
func (br *WABridge) GetAllPortalsByJID(jid types.JID) []*Portal {
return br.dbPortalsToPortals(br.DB.Portal.GetAllByJID(jid))
}
func (br *WABridge) dbPortalsToPortals(dbPortals []*database.Portal) []*Portal {
br.portalsLock.Lock()
defer br.portalsLock.Unlock()
output := make([]*Portal, len(dbPortals))
for index, dbPortal := range dbPortals {
if dbPortal == nil {
continue
}
portal, ok := br.portalsByJID[dbPortal.Key]
if !ok {
portal = br.loadDBPortal(dbPortal, nil)
}
output[index] = portal
}
return output
}
func (br *WABridge) loadDBPortal(dbPortal *database.Portal, key *database.PortalKey) *Portal {
if dbPortal == nil {
if key == nil {
return nil
}
dbPortal = br.DB.Portal.New()
dbPortal.Key = *key
dbPortal.Insert()
}
portal := br.NewPortal(dbPortal)
br.portalsByJID[portal.Key] = portal
if len(portal.MXID) > 0 {
br.portalsByMXID[portal.MXID] = portal
}
return portal
}
func (portal *Portal) GetUsers() []*User {
return nil
}
func (br *WABridge) newBlankPortal(key database.PortalKey) *Portal {
portal := &Portal{
bridge: br,
log: br.Log.Sub(fmt.Sprintf("Portal/%s", key)),
messages: make(chan PortalMessage, br.Config.Bridge.PortalMessageBuffer),
matrixMessages: make(chan PortalMatrixMessage, br.Config.Bridge.PortalMessageBuffer),
mediaRetries: make(chan PortalMediaRetry, br.Config.Bridge.PortalMessageBuffer),
mediaErrorCache: make(map[types.MessageID]*FailedMediaMeta),
}
go portal.handleMessageLoop()
return portal
}
func (br *WABridge) NewManualPortal(key database.PortalKey) *Portal {
portal := br.newBlankPortal(key)
portal.Portal = br.DB.Portal.New()
portal.Key = key
return portal
}
func (br *WABridge) NewPortal(dbPortal *database.Portal) *Portal {
portal := br.newBlankPortal(dbPortal.Key)
portal.Portal = dbPortal
return portal
}
const recentlyHandledLength = 100
type fakeMessage struct {
Sender types.JID
Text string
ID string
Time time.Time
Important bool
}
type PortalMessage struct {
evt *events.Message
undecryptable *events.UndecryptableMessage
receipt *events.Receipt
fake *fakeMessage
source *User
}
type PortalMatrixMessage struct {
evt *event.Event
user *User
receivedAt time.Time
}
type PortalMediaRetry struct {
evt *events.MediaRetry
source *User
}
type recentlyHandledWrapper struct {
id types.MessageID
err database.MessageErrorType
}
type Portal struct {
*database.Portal
bridge *WABridge
log log.Logger
roomCreateLock sync.Mutex
encryptLock sync.Mutex
backfillLock sync.Mutex
avatarLock sync.Mutex
latestEventBackfillLock sync.Mutex
recentlyHandled [recentlyHandledLength]recentlyHandledWrapper
recentlyHandledLock sync.Mutex
recentlyHandledIndex uint8
currentlyTyping []id.UserID
currentlyTypingLock sync.Mutex
messages chan PortalMessage
matrixMessages chan PortalMatrixMessage
mediaRetries chan PortalMediaRetry
mediaErrorCache map[types.MessageID]*FailedMediaMeta
relayUser *User
}
var (
_ bridge.Portal = (*Portal)(nil)
_ bridge.ReadReceiptHandlingPortal = (*Portal)(nil)
_ bridge.MembershipHandlingPortal = (*Portal)(nil)
_ bridge.MetaHandlingPortal = (*Portal)(nil)
_ bridge.TypingPortal = (*Portal)(nil)
_ bridge.DisappearingPortal = (*Portal)(nil)
)
func (portal *Portal) handleMessageLoopItem(msg PortalMessage) {
if len(portal.MXID) == 0 {
if msg.fake == nil && msg.undecryptable == nil && (msg.evt == nil || !containsSupportedMessage(msg.evt.Message)) {
portal.log.Debugln("Not creating portal room for incoming message: message is not a chat message")
return
}
portal.log.Debugln("Creating Matrix room from incoming message")
err := portal.CreateMatrixRoom(msg.source, nil, false, true)
if err != nil {
portal.log.Errorln("Failed to create portal room:", err)
return
}
}
portal.latestEventBackfillLock.Lock()
defer portal.latestEventBackfillLock.Unlock()
switch {
case msg.evt != nil:
portal.handleMessage(msg.source, msg.evt)
case msg.receipt != nil:
portal.handleReceipt(msg.receipt, msg.source)
case msg.undecryptable != nil:
portal.handleUndecryptableMessage(msg.source, msg.undecryptable)
case msg.fake != nil:
msg.fake.ID = "FAKE::" + msg.fake.ID
portal.handleFakeMessage(*msg.fake)
default:
portal.log.Warnln("Unexpected PortalMessage with no message: %+v", msg)
}
}
func (portal *Portal) handleMatrixMessageLoopItem(msg PortalMatrixMessage) {
evtTS := time.UnixMilli(msg.evt.Timestamp)
timings := messageTimings{
initReceive: msg.evt.Mautrix.ReceivedAt.Sub(evtTS),
decrypt: msg.evt.Mautrix.DecryptionDuration,
portalQueue: time.Since(msg.receivedAt),
totalReceive: time.Since(evtTS),
}
implicitRRStart := time.Now()
portal.handleMatrixReadReceipt(msg.user, "", evtTS, false)
timings.implicitRR = time.Since(implicitRRStart)
switch msg.evt.Type {
case event.EventMessage, event.EventSticker:
portal.HandleMatrixMessage(msg.user, msg.evt, timings)
case event.EventRedaction:
portal.HandleMatrixRedaction(msg.user, msg.evt)
case event.EventReaction:
portal.HandleMatrixReaction(msg.user, msg.evt)
default:
portal.log.Warnln("Unsupported event type %+v in portal message channel", msg.evt.Type)
}
}
func (portal *Portal) handleReceipt(receipt *events.Receipt, source *User) {
// The order of the message ID array depends on the sender's platform, so we just have to find
// the last message based on timestamp. Also, timestamps only have second precision, so if
// there are many messages at the same second just mark them all as read, because we don't
// know which one is last
markAsRead := make([]*database.Message, 0, 1)
var bestTimestamp time.Time
for _, msgID := range receipt.MessageIDs {
msg := portal.bridge.DB.Message.GetByJID(portal.Key, msgID)
if msg == nil || msg.IsFakeMXID() {
continue
}
if msg.Timestamp.After(bestTimestamp) {
bestTimestamp = msg.Timestamp
markAsRead = append(markAsRead[:0], msg)
} else if msg != nil && msg.Timestamp.Equal(bestTimestamp) {
markAsRead = append(markAsRead, msg)
}
}
if receipt.Sender.User == source.JID.User {
if len(markAsRead) > 0 {
source.SetLastReadTS(portal.Key, markAsRead[0].Timestamp)
} else {
source.SetLastReadTS(portal.Key, receipt.Timestamp)
}
}
intent := portal.bridge.GetPuppetByJID(receipt.Sender).IntentFor(portal)
for _, msg := range markAsRead {
err := intent.SetReadMarkers(portal.MXID, source.makeReadMarkerContent(msg.MXID, intent.IsCustomPuppet))
if err != nil {
portal.log.Warnfln("Failed to mark message %s as read by %s: %v", msg.MXID, intent.UserID, err)
} else {
portal.log.Debugfln("Marked %s as read by %s", msg.MXID, intent.UserID)
}
}
}
func (portal *Portal) handleMessageLoop() {
for {
select {
case msg := <-portal.messages:
portal.handleMessageLoopItem(msg)
case msg := <-portal.matrixMessages:
portal.handleMatrixMessageLoopItem(msg)
case retry := <-portal.mediaRetries:
portal.handleMediaRetry(retry.evt, retry.source)
}
}
}
func containsSupportedMessage(waMsg *waProto.Message) bool {
if waMsg == nil {
return false
}
return waMsg.Conversation != nil || waMsg.ExtendedTextMessage != nil || waMsg.ImageMessage != nil ||
waMsg.StickerMessage != nil || waMsg.AudioMessage != nil || waMsg.VideoMessage != nil ||
waMsg.DocumentMessage != nil || waMsg.ContactMessage != nil || waMsg.LocationMessage != nil ||
waMsg.LiveLocationMessage != nil || waMsg.GroupInviteMessage != nil || waMsg.ContactsArrayMessage != nil ||
waMsg.HighlyStructuredMessage != nil || waMsg.TemplateMessage != nil || waMsg.TemplateButtonReplyMessage != nil ||
waMsg.ListMessage != nil || waMsg.ListResponseMessage != nil || waMsg.PollCreationMessage != nil
}
func getMessageType(waMsg *waProto.Message) string {
switch {
case waMsg == nil:
return "ignore"
case waMsg.Conversation != nil, waMsg.ExtendedTextMessage != nil:
return "text"
case waMsg.ImageMessage != nil:
return fmt.Sprintf("image %s", waMsg.GetImageMessage().GetMimetype())
case waMsg.StickerMessage != nil:
return fmt.Sprintf("sticker %s", waMsg.GetStickerMessage().GetMimetype())
case waMsg.VideoMessage != nil:
return fmt.Sprintf("video %s", waMsg.GetVideoMessage().GetMimetype())
case waMsg.AudioMessage != nil:
return fmt.Sprintf("audio %s", waMsg.GetAudioMessage().GetMimetype())
case waMsg.DocumentMessage != nil:
return fmt.Sprintf("document %s", waMsg.GetDocumentMessage().GetMimetype())
case waMsg.ContactMessage != nil:
return "contact"
case waMsg.ContactsArrayMessage != nil:
return "contact array"
case waMsg.LocationMessage != nil:
return "location"
case waMsg.LiveLocationMessage != nil:
return "live location start"
case waMsg.GroupInviteMessage != nil:
return "group invite"
case waMsg.ReactionMessage != nil:
return "reaction"
case waMsg.PollCreationMessage != nil:
return "poll create"
case waMsg.PollUpdateMessage != nil:
return "poll update"
case waMsg.ProtocolMessage != nil:
switch waMsg.GetProtocolMessage().GetType() {
case waProto.ProtocolMessage_REVOKE:
if waMsg.GetProtocolMessage().GetKey() == nil {
return "ignore"
}
return "revoke"
case waProto.ProtocolMessage_MESSAGE_EDIT:
return "edit"
case waProto.ProtocolMessage_EPHEMERAL_SETTING:
return "disappearing timer change"
case waProto.ProtocolMessage_APP_STATE_SYNC_KEY_SHARE, waProto.ProtocolMessage_HISTORY_SYNC_NOTIFICATION, waProto.ProtocolMessage_INITIAL_SECURITY_NOTIFICATION_SETTING_SYNC:
return "ignore"
default:
return fmt.Sprintf("unknown_protocol_%d", waMsg.GetProtocolMessage().GetType())
}
case waMsg.ButtonsMessage != nil:
return "buttons"
case waMsg.ButtonsResponseMessage != nil:
return "buttons response"
case waMsg.TemplateMessage != nil:
return "template"
case waMsg.HighlyStructuredMessage != nil:
return "highly structured template"
case waMsg.TemplateButtonReplyMessage != nil:
return "template button reply"
case waMsg.InteractiveMessage != nil:
return "interactive"
case waMsg.ListMessage != nil:
return "list"
case waMsg.ProductMessage != nil:
return "product"
case waMsg.ListResponseMessage != nil:
return "list response"
case waMsg.OrderMessage != nil:
return "order"
case waMsg.InvoiceMessage != nil:
return "invoice"
case waMsg.SendPaymentMessage != nil, waMsg.RequestPaymentMessage != nil,
waMsg.DeclinePaymentRequestMessage != nil, waMsg.CancelPaymentRequestMessage != nil,
waMsg.PaymentInviteMessage != nil:
return "payment"
case waMsg.Call != nil:
return "call"
case waMsg.Chat != nil:
return "chat"
case waMsg.SenderKeyDistributionMessage != nil, waMsg.StickerSyncRmrMessage != nil:
return "ignore"
default:
return "unknown"
}
}
func pluralUnit(val int, name string) string {
if val == 1 {
return fmt.Sprintf("%d %s", val, name)
} else if val == 0 {
return ""
}
return fmt.Sprintf("%d %ss", val, name)
}
func naturalJoin(parts []string) string {
if len(parts) == 0 {
return ""
} else if len(parts) == 1 {
return parts[0]
} else if len(parts) == 2 {
return fmt.Sprintf("%s and %s", parts[0], parts[1])
} else {
return fmt.Sprintf("%s and %s", strings.Join(parts[:len(parts)-1], ", "), parts[len(parts)-1])
}
}
func formatDuration(d time.Duration) string {
const Day = time.Hour * 24
var days, hours, minutes, seconds int
days, d = int(d/Day), d%Day
hours, d = int(d/time.Hour), d%time.Hour
minutes, d = int(d/time.Minute), d%time.Minute
seconds = int(d / time.Second)
parts := make([]string, 0, 4)
if days > 0 {
parts = append(parts, pluralUnit(days, "day"))
}
if hours > 0 {
parts = append(parts, pluralUnit(hours, "hour"))
}
if minutes > 0 {
parts = append(parts, pluralUnit(seconds, "minute"))
}
if seconds > 0 {
parts = append(parts, pluralUnit(seconds, "second"))
}
return naturalJoin(parts)
}
func (portal *Portal) convertMessage(intent *appservice.IntentAPI, source *User, info *types.MessageInfo, waMsg *waProto.Message, isBackfill bool) *ConvertedMessage {
switch {
case waMsg.Conversation != nil || waMsg.ExtendedTextMessage != nil:
return portal.convertTextMessage(intent, source, waMsg)
case waMsg.TemplateMessage != nil:
return portal.convertTemplateMessage(intent, source, info, waMsg.GetTemplateMessage())
case waMsg.HighlyStructuredMessage != nil:
return portal.convertTemplateMessage(intent, source, info, waMsg.GetHighlyStructuredMessage().GetHydratedHsm())
case waMsg.TemplateButtonReplyMessage != nil:
return portal.convertTemplateButtonReplyMessage(intent, waMsg.GetTemplateButtonReplyMessage())
case waMsg.ListMessage != nil:
return portal.convertListMessage(intent, source, waMsg.GetListMessage())
case waMsg.ListResponseMessage != nil:
return portal.convertListResponseMessage(intent, waMsg.GetListResponseMessage())
case waMsg.PollCreationMessage != nil:
return portal.convertPollCreationMessage(intent, waMsg.GetPollCreationMessage())
case waMsg.PollUpdateMessage != nil:
return portal.convertPollUpdateMessage(intent, source, info, waMsg.GetPollUpdateMessage())
case waMsg.ImageMessage != nil:
return portal.convertMediaMessage(intent, source, info, waMsg.GetImageMessage(), "photo", isBackfill)
case waMsg.StickerMessage != nil:
return portal.convertMediaMessage(intent, source, info, waMsg.GetStickerMessage(), "sticker", isBackfill)
case waMsg.VideoMessage != nil:
return portal.convertMediaMessage(intent, source, info, waMsg.GetVideoMessage(), "video attachment", isBackfill)
case waMsg.AudioMessage != nil:
typeName := "audio attachment"
if waMsg.GetAudioMessage().GetPtt() {
typeName = "voice message"
}
return portal.convertMediaMessage(intent, source, info, waMsg.GetAudioMessage(), typeName, isBackfill)
case waMsg.DocumentMessage != nil:
return portal.convertMediaMessage(intent, source, info, waMsg.GetDocumentMessage(), "file attachment", isBackfill)
case waMsg.ContactMessage != nil:
return portal.convertContactMessage(intent, waMsg.GetContactMessage())
case waMsg.ContactsArrayMessage != nil:
return portal.convertContactsArrayMessage(intent, waMsg.GetContactsArrayMessage())
case waMsg.LocationMessage != nil:
return portal.convertLocationMessage(intent, waMsg.GetLocationMessage())
case waMsg.LiveLocationMessage != nil:
return portal.convertLiveLocationMessage(intent, waMsg.GetLiveLocationMessage())
case waMsg.GroupInviteMessage != nil:
return portal.convertGroupInviteMessage(intent, info, waMsg.GetGroupInviteMessage())
case waMsg.ProtocolMessage != nil && waMsg.ProtocolMessage.GetType() == waProto.ProtocolMessage_EPHEMERAL_SETTING:
portal.ExpirationTime = waMsg.ProtocolMessage.GetEphemeralExpiration()
portal.Update(nil)
return &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: &event.MessageEventContent{
Body: portal.formatDisappearingMessageNotice(),
MsgType: event.MsgNotice,
},
}
default:
return nil
}
}
func (portal *Portal) UpdateGroupDisappearingMessages(sender *types.JID, timestamp time.Time, timer uint32) {
if portal.ExpirationTime == timer {
return
}
portal.ExpirationTime = timer
portal.Update(nil)
intent := portal.MainIntent()
if sender != nil {
intent = portal.bridge.GetPuppetByJID(sender.ToNonAD()).IntentFor(portal)
} else {
sender = &types.EmptyJID
}
_, err := portal.sendMessage(intent, event.EventMessage, &event.MessageEventContent{
Body: portal.formatDisappearingMessageNotice(),
MsgType: event.MsgNotice,
}, nil, timestamp.UnixMilli())
if err != nil {
portal.log.Warnfln("Failed to notify portal about disappearing message timer change by %s to %d", *sender, timer)
}
}
func (portal *Portal) formatDisappearingMessageNotice() string {
if portal.ExpirationTime == 0 {
return "Turned off disappearing messages"
} else {
msg := fmt.Sprintf("Set the disappearing message timer to %s", formatDuration(time.Duration(portal.ExpirationTime)*time.Second))
if !portal.bridge.Config.Bridge.DisappearingMessagesInGroups && portal.IsGroupChat() {
msg += ". However, this bridge is not configured to disappear messages in group chats."
}
return msg
}
}
const UndecryptableMessageNotice = "Decrypting message from WhatsApp failed, waiting for sender to re-send... " +
"([learn more](https://faq.whatsapp.com/general/security-and-privacy/seeing-waiting-for-this-message-this-may-take-a-while))"
var undecryptableMessageContent event.MessageEventContent
func init() {
undecryptableMessageContent = format.RenderMarkdown(UndecryptableMessageNotice, true, false)
undecryptableMessageContent.MsgType = event.MsgNotice
}
func (portal *Portal) handleUndecryptableMessage(source *User, evt *events.UndecryptableMessage) {
if len(portal.MXID) == 0 {
portal.log.Warnln("handleUndecryptableMessage called even though portal.MXID is empty")
return
} else if portal.isRecentlyHandled(evt.Info.ID, database.MsgErrDecryptionFailed) {
portal.log.Debugfln("Not handling %s (undecryptable): message was recently handled", evt.Info.ID)
return
} else if existingMsg := portal.bridge.DB.Message.GetByJID(portal.Key, evt.Info.ID); existingMsg != nil {
portal.log.Debugfln("Not handling %s (undecryptable): message is duplicate", evt.Info.ID)
return
}
metricType := "error"
if evt.IsUnavailable {
metricType = "unavailable"
}
Segment.Track(source.MXID, "WhatsApp undecryptable message", map[string]interface{}{
"messageID": evt.Info.ID,
"undecryptableType": metricType,
})
intent := portal.getMessageIntent(source, &evt.Info)
if intent == nil {
return
} else if !intent.IsCustomPuppet && portal.IsPrivateChat() && evt.Info.Sender.User == portal.Key.Receiver.User {
portal.log.Debugfln("Not handling %s (undecryptable): user doesn't have double puppeting enabled", evt.Info.ID)
return
}
content := undecryptableMessageContent
resp, err := portal.sendMessage(intent, event.EventMessage, &content, nil, evt.Info.Timestamp.UnixMilli())
if err != nil {
portal.log.Errorfln("Failed to send decryption error of %s to Matrix: %v", evt.Info.ID, err)
return
}
portal.finishHandling(nil, &evt.Info, resp.EventID, database.MsgUnknown, database.MsgErrDecryptionFailed)
}
func (portal *Portal) handleFakeMessage(msg fakeMessage) {
if portal.isRecentlyHandled(msg.ID, database.MsgNoError) {
portal.log.Debugfln("Not handling %s (fake): message was recently handled", msg.ID)
return
} else if existingMsg := portal.bridge.DB.Message.GetByJID(portal.Key, msg.ID); existingMsg != nil {
portal.log.Debugfln("Not handling %s (fake): message is duplicate", msg.ID)
return
}
intent := portal.bridge.GetPuppetByJID(msg.Sender).IntentFor(portal)
if !intent.IsCustomPuppet && portal.IsPrivateChat() && msg.Sender.User == portal.Key.Receiver.User {
portal.log.Debugfln("Not handling %s (fake): user doesn't have double puppeting enabled", msg.ID)
return
}
msgType := event.MsgNotice
if msg.Important {
msgType = event.MsgText
}
resp, err := portal.sendMessage(intent, event.EventMessage, &event.MessageEventContent{
MsgType: msgType,
Body: msg.Text,
}, nil, msg.Time.UnixMilli())
if err != nil {
portal.log.Errorfln("Failed to send %s to Matrix: %v", msg.ID, err)
} else {
portal.finishHandling(nil, &types.MessageInfo{
ID: msg.ID,
Timestamp: msg.Time,
MessageSource: types.MessageSource{
Sender: msg.Sender,
},
}, resp.EventID, database.MsgFake, database.MsgNoError)
}
}
func (portal *Portal) handleMessage(source *User, evt *events.Message) {
if len(portal.MXID) == 0 {
portal.log.Warnln("handleMessage called even though portal.MXID is empty")
return
}
msgID := evt.Info.ID
msgType := getMessageType(evt.Message)
if msgType == "ignore" {
return
} else if portal.isRecentlyHandled(msgID, database.MsgNoError) {
portal.log.Debugfln("Not handling %s (%s): message was recently handled", msgID, msgType)
return
}
existingMsg := portal.bridge.DB.Message.GetByJID(portal.Key, msgID)
if existingMsg != nil {
if existingMsg.Error == database.MsgErrDecryptionFailed {
Segment.Track(source.MXID, "WhatsApp undecryptable message resolved", map[string]interface{}{
"messageID": evt.Info.ID,
})
portal.log.Debugfln("Got decryptable version of previously undecryptable message %s (%s)", msgID, msgType)
} else {
portal.log.Debugfln("Not handling %s (%s): message is duplicate", msgID, msgType)
return
}
}
var editTargetMsg *database.Message
if msgType == "edit" {
editTargetID := evt.Message.GetProtocolMessage().GetKey().GetId()
editTargetMsg = portal.bridge.DB.Message.GetByJID(portal.Key, editTargetID)
if editTargetMsg == nil {
portal.log.Warnfln("Not handling %s: couldn't find edit target %s", msgID, editTargetID)
return
} else if editTargetMsg.Type != database.MsgNormal {
portal.log.Warnfln("Not handling %s: edit target %s is not a normal message (it's %s)", msgID, editTargetID, editTargetMsg.Type)
return
} else if editTargetMsg.Sender.User != evt.Info.Sender.User {
portal.log.Warnfln("Not handling %s: edit target %s was sent by %s, not %s", msgID, editTargetID, editTargetMsg.Sender.User, evt.Info.Sender.User)
return
}
evt.Message = evt.Message.GetProtocolMessage().GetEditedMessage()
}
intent := portal.getMessageIntent(source, &evt.Info)
if intent == nil {
return
} else if !intent.IsCustomPuppet && portal.IsPrivateChat() && evt.Info.Sender.User == portal.Key.Receiver.User {
portal.log.Debugfln("Not handling %s (%s): user doesn't have double puppeting enabled", msgID, msgType)
return
}
converted := portal.convertMessage(intent, source, &evt.Info, evt.Message, false)
if converted != nil {
if evt.Info.IsIncomingBroadcast() {
if converted.Extra == nil {
converted.Extra = map[string]interface{}{}
}
converted.Extra["fi.mau.whatsapp.source_broadcast_list"] = evt.Info.Chat.String()
}
if portal.bridge.Config.Bridge.CaptionInMessage {
converted.MergeCaption()
}
var eventID id.EventID
var lastEventID id.EventID
if existingMsg != nil {
portal.MarkDisappearing(nil, existingMsg.MXID, converted.ExpiresIn, false)
converted.Content.SetEdit(existingMsg.MXID)
} else if converted.ReplyTo != nil {
portal.SetReply(converted.Content, converted.ReplyTo, false)
}
dbMsgType := database.MsgNormal
if editTargetMsg != nil {
dbMsgType = database.MsgEdit
converted.Content.SetEdit(editTargetMsg.MXID)
}
resp, err := portal.sendMessage(converted.Intent, converted.Type, converted.Content, converted.Extra, evt.Info.Timestamp.UnixMilli())
if err != nil {
portal.log.Errorfln("Failed to send %s to Matrix: %v", msgID, err)
} else {
if editTargetMsg == nil {
portal.MarkDisappearing(nil, resp.EventID, converted.ExpiresIn, false)
}
eventID = resp.EventID
lastEventID = eventID
}
// TODO figure out how to handle captions with undecryptable messages turning decryptable
if converted.Caption != nil && existingMsg == nil && editTargetMsg == nil {
resp, err = portal.sendMessage(converted.Intent, converted.Type, converted.Caption, nil, evt.Info.Timestamp.UnixMilli())
if err != nil {
portal.log.Errorfln("Failed to send caption of %s to Matrix: %v", msgID, err)
} else {
portal.MarkDisappearing(nil, resp.EventID, converted.ExpiresIn, false)
lastEventID = resp.EventID
}
}
if converted.MultiEvent != nil && existingMsg == nil && editTargetMsg == nil {
for index, subEvt := range converted.MultiEvent {
resp, err = portal.sendMessage(converted.Intent, converted.Type, subEvt, nil, evt.Info.Timestamp.UnixMilli())
if err != nil {
portal.log.Errorfln("Failed to send sub-event %d of %s to Matrix: %v", index+1, msgID, err)
} else {
portal.MarkDisappearing(nil, resp.EventID, converted.ExpiresIn, false)
lastEventID = resp.EventID
}
}
}
if source.MXID == intent.UserID && portal.bridge.Config.Homeserver.Software != bridgeconfig.SoftwareHungry {
// There are some edge cases (like call notices) where previous messages aren't marked as read
// when the user sends a message from another device, so just mark the new message as read to be safe.
// Hungryserv does this automatically, so the bridge doesn't need to do it manually.
err = intent.SetReadMarkers(portal.MXID, source.makeReadMarkerContent(lastEventID, true))
if err != nil {
portal.log.Warnfln("Failed to mark own message %s as read by %s: %v", lastEventID, source.MXID, err)
}
}
if len(eventID) != 0 {
portal.finishHandling(existingMsg, &evt.Info, eventID, dbMsgType, converted.Error)
}
} else if msgType == "reaction" {
portal.HandleMessageReaction(intent, source, &evt.Info, evt.Message.GetReactionMessage(), existingMsg)
} else if msgType == "revoke" {
portal.HandleMessageRevoke(source, &evt.Info, evt.Message.GetProtocolMessage().GetKey())
if existingMsg != nil {
_, _ = portal.MainIntent().RedactEvent(portal.MXID, existingMsg.MXID, mautrix.ReqRedact{
Reason: "The undecryptable message was actually the deletion of another message",
})
existingMsg.UpdateMXID(nil, "net.maunium.whatsapp.fake::"+existingMsg.MXID, database.MsgFake, database.MsgNoError)
}
} else {
portal.log.Warnfln("Unhandled message: %+v (%s)", evt.Info, msgType)
if existingMsg != nil {
_, _ = portal.MainIntent().RedactEvent(portal.MXID, existingMsg.MXID, mautrix.ReqRedact{
Reason: "The undecryptable message contained an unsupported message type",
})
existingMsg.UpdateMXID(nil, "net.maunium.whatsapp.fake::"+existingMsg.MXID, database.MsgFake, database.MsgNoError)
}
return
}
portal.bridge.Metrics.TrackWhatsAppMessage(evt.Info.Timestamp, strings.Split(msgType, " ")[0])
}
func (portal *Portal) isRecentlyHandled(id types.MessageID, error database.MessageErrorType) bool {
start := portal.recentlyHandledIndex
lookingForMsg := recentlyHandledWrapper{id, error}
for i := start; i != start; i = (i - 1) % recentlyHandledLength {
if portal.recentlyHandled[i] == lookingForMsg {
return true
}
}
return false
}
func (portal *Portal) markHandled(txn dbutil.Transaction, msg *database.Message, info *types.MessageInfo, mxid id.EventID, isSent, recent bool, msgType database.MessageType, errType database.MessageErrorType) *database.Message {
if msg == nil {
msg = portal.bridge.DB.Message.New()
msg.Chat = portal.Key
msg.JID = info.ID
msg.MXID = mxid
msg.Timestamp = info.Timestamp
msg.Sender = info.Sender
msg.Sent = isSent
msg.Type = msgType
msg.Error = errType
if info.IsIncomingBroadcast() {
msg.BroadcastListJID = info.Chat
}
msg.Insert(txn)
} else {
msg.UpdateMXID(txn, mxid, msgType, errType)
}
if recent {
portal.recentlyHandledLock.Lock()
index := portal.recentlyHandledIndex
portal.recentlyHandledIndex = (portal.recentlyHandledIndex + 1) % recentlyHandledLength
portal.recentlyHandledLock.Unlock()
portal.recentlyHandled[index] = recentlyHandledWrapper{msg.JID, errType}
}
return msg
}
func (portal *Portal) getMessagePuppet(user *User, info *types.MessageInfo) (puppet *Puppet) {
if info.IsFromMe {
return portal.bridge.GetPuppetByJID(user.JID)
} else if portal.IsPrivateChat() {
puppet = portal.bridge.GetPuppetByJID(portal.Key.JID)
} else if !info.Sender.IsEmpty() {
puppet = portal.bridge.GetPuppetByJID(info.Sender)
}
if puppet == nil {
portal.log.Warnfln("Message %+v doesn't seem to have a valid sender (%s): puppet is nil", *info, info.Sender)
return nil
}
user.EnqueuePortalResync(portal)
puppet.SyncContact(user, true, true, "handling message")
return puppet
}
func (portal *Portal) getMessageIntent(user *User, info *types.MessageInfo) *appservice.IntentAPI {
puppet := portal.getMessagePuppet(user, info)
if puppet == nil {
return nil
}
return puppet.IntentFor(portal)
}
func (portal *Portal) finishHandling(existing *database.Message, message *types.MessageInfo, mxid id.EventID, msgType database.MessageType, errType database.MessageErrorType) {
portal.markHandled(nil, existing, message, mxid, true, true, msgType, errType)
portal.sendDeliveryReceipt(mxid)
var suffix string
if errType == database.MsgErrDecryptionFailed {
suffix = "(undecryptable message error notice)"
} else if errType == database.MsgErrMediaNotFound {
suffix = "(media not found notice)"
}
portal.log.Debugfln("Handled message %s (%s) -> %s %s", message.ID, msgType, mxid, suffix)
}
func (portal *Portal) kickExtraUsers(participantMap map[types.JID]bool) {
members, err := portal.MainIntent().JoinedMembers(portal.MXID)
if err != nil {
portal.log.Warnln("Failed to get member list:", err)
return
}
for member := range members.Joined {
jid, ok := portal.bridge.ParsePuppetMXID(member)
if ok {
_, shouldBePresent := participantMap[jid]
if !shouldBePresent {
_, err = portal.MainIntent().KickUser(portal.MXID, &mautrix.ReqKickUser{
UserID: member,
Reason: "User had left this WhatsApp chat",
})
if err != nil {
portal.log.Warnfln("Failed to kick user %s who had left: %v", member, err)
}
}
}
}
}
//func (portal *Portal) SyncBroadcastRecipients(source *User, metadata *whatsapp.BroadcastListInfo) {
// participantMap := make(map[whatsapp.JID]bool)
// for _, recipient := range metadata.Recipients {
// participantMap[recipient.JID] = true
//
// puppet := portal.bridge.GetPuppetByJID(recipient.JID)
// puppet.SyncContactIfNecessary(source)
// err := puppet.DefaultIntent().EnsureJoined(portal.MXID)
// if err != nil {
// portal.log.Warnfln("Failed to make puppet of %s join %s: %v", recipient.JID, portal.MXID, err)
// }
// }
// portal.kickExtraUsers(participantMap)
//}
func (portal *Portal) syncParticipant(source *User, participant types.GroupParticipant, puppet *Puppet, user *User, wg *sync.WaitGroup) {
defer func() {
wg.Done()
if err := recover(); err != nil {
portal.log.Errorfln("Syncing participant %s panicked: %v\n%s", participant.JID, err, debug.Stack())
}
}()
puppet.SyncContact(source, true, false, "group participant")
if portal.MXID != "" {
if user != nil && user != source {
portal.ensureUserInvited(user)
}
if user == nil || !puppet.IntentFor(portal).IsCustomPuppet {
err := puppet.IntentFor(portal).EnsureJoined(portal.MXID)
if err != nil {
portal.log.Warnfln("Failed to make puppet of %s join %s: %v", participant.JID, portal.MXID, err)
}
}
}
}
func (portal *Portal) SyncParticipants(source *User, metadata *types.GroupInfo) ([]id.UserID, *event.PowerLevelsEventContent) {
changed := false
var levels *event.PowerLevelsEventContent
var err error
if portal.MXID != "" {
levels, err = portal.MainIntent().PowerLevels(portal.MXID)
}
if levels == nil || err != nil {
levels = portal.GetBasePowerLevels()
changed = true
}
changed = portal.applyPowerLevelFixes(levels) || changed
var wg sync.WaitGroup
wg.Add(len(metadata.Participants))
participantMap := make(map[types.JID]bool)
userIDs := make([]id.UserID, 0, len(metadata.Participants))
for _, participant := range metadata.Participants {
portal.log.Debugfln("Syncing participant %s (admin: %t)", participant.JID, participant.IsAdmin)
participantMap[participant.JID] = true
puppet := portal.bridge.GetPuppetByJID(participant.JID)
user := portal.bridge.GetUserByJID(participant.JID)
if portal.bridge.Config.Bridge.ParallelMemberSync {
go portal.syncParticipant(source, participant, puppet, user, &wg)
} else {
portal.syncParticipant(source, participant, puppet, user, &wg)
}
expectedLevel := 0
if participant.IsSuperAdmin {
expectedLevel = 95
} else if participant.IsAdmin {
expectedLevel = 50
}
changed = levels.EnsureUserLevel(puppet.MXID, expectedLevel) || changed
if user != nil {
userIDs = append(userIDs, user.MXID)
changed = levels.EnsureUserLevel(user.MXID, expectedLevel) || changed
}
if user == nil || puppet.CustomMXID != user.MXID {
userIDs = append(userIDs, puppet.MXID)
}
}
if portal.MXID != "" {
if changed {
_, err = portal.MainIntent().SetPowerLevels(portal.MXID, levels)
if err != nil {
portal.log.Errorln("Failed to change power levels:", err)
}
}
portal.kickExtraUsers(participantMap)
}
wg.Wait()
portal.log.Debugln("Participant sync completed")
return userIDs, levels
}
func reuploadAvatar(intent *appservice.IntentAPI, url string) (id.ContentURI, error) {
getResp, err := http.DefaultClient.Get(url)
if err != nil {
return id.ContentURI{}, fmt.Errorf("failed to download avatar: %w", err)
}
data, err := io.ReadAll(getResp.Body)
_ = getResp.Body.Close()
if err != nil {
return id.ContentURI{}, fmt.Errorf("failed to read avatar bytes: %w", err)
}
resp, err := intent.UploadBytes(data, http.DetectContentType(data))
if err != nil {
return id.ContentURI{}, fmt.Errorf("failed to upload avatar to Matrix: %w", err)
}
return resp.ContentURI, nil
}
func (user *User) updateAvatar(jid types.JID, avatarID *string, avatarURL *id.ContentURI, avatarSet *bool, log log.Logger, intent *appservice.IntentAPI) bool {
currentID := ""
if *avatarSet && *avatarID != "remove" && *avatarID != "unauthorized" {
currentID = *avatarID
}
avatar, err := user.Client.GetProfilePictureInfo(jid, false, currentID)
if errors.Is(err, whatsmeow.ErrProfilePictureUnauthorized) {
if *avatarID == "" {
*avatarID = "unauthorized"
*avatarSet = false
return true
}
return false
} else if errors.Is(err, whatsmeow.ErrProfilePictureNotSet) {
avatar = &types.ProfilePictureInfo{ID: "remove"}
if avatar.ID == *avatarID && *avatarSet {
return false
}
*avatarID = avatar.ID
*avatarURL = id.ContentURI{}
return true
} else if err != nil {
log.Warnln("Failed to get avatar URL:", err)
return false
} else if avatar == nil {
// Avatar hasn't changed
return false
}
if avatar.ID == *avatarID && *avatarSet {
return false
} else if len(avatar.URL) == 0 {
log.Warnln("Didn't get URL in response to avatar query")
return false
} else if avatar.ID != *avatarID || avatarURL.IsEmpty() {
url, err := reuploadAvatar(intent, avatar.URL)
if err != nil {
log.Warnln("Failed to reupload avatar:", err)
return false
}
*avatarURL = url
}
log.Debugfln("Updated avatar %s -> %s", *avatarID, avatar.ID)
*avatarID = avatar.ID
*avatarSet = false
return true
}
func (portal *Portal) UpdateAvatar(user *User, setBy types.JID, updateInfo bool) bool {
portal.avatarLock.Lock()
defer portal.avatarLock.Unlock()
changed := user.updateAvatar(portal.Key.JID, &portal.Avatar, &portal.AvatarURL, &portal.AvatarSet, portal.log, portal.MainIntent())
if !changed || portal.Avatar == "unauthorized" {
if changed || updateInfo {
portal.Update(nil)
}
return changed
}
if len(portal.MXID) > 0 {
intent := portal.MainIntent()
if !setBy.IsEmpty() {
intent = portal.bridge.GetPuppetByJID(setBy).IntentFor(portal)
}
_, err := intent.SetRoomAvatar(portal.MXID, portal.AvatarURL)
if errors.Is(err, mautrix.MForbidden) && intent != portal.MainIntent() {
_, err = portal.MainIntent().SetRoomAvatar(portal.MXID, portal.AvatarURL)
}
if err != nil {
portal.log.Warnln("Failed to set room avatar:", err)
return true
} else {
portal.AvatarSet = true
}
}
if updateInfo {
portal.UpdateBridgeInfo()
portal.Update(nil)
}
return true
}
func (portal *Portal) UpdateName(name string, setBy types.JID, updateInfo bool) bool {
if name == "" && portal.IsBroadcastList() {
name = UnnamedBroadcastName
}
if portal.Name != name || (!portal.NameSet && len(portal.MXID) > 0) {
portal.log.Debugfln("Updating name %q -> %q", portal.Name, name)
portal.Name = name
portal.NameSet = false
if updateInfo {
defer portal.Update(nil)
}
if len(portal.MXID) > 0 {
intent := portal.MainIntent()
if !setBy.IsEmpty() {
intent = portal.bridge.GetPuppetByJID(setBy).IntentFor(portal)
}
_, err := intent.SetRoomName(portal.MXID, name)
if errors.Is(err, mautrix.MForbidden) && intent != portal.MainIntent() {
_, err = portal.MainIntent().SetRoomName(portal.MXID, name)
}
if err == nil {
portal.NameSet = true
if updateInfo {
portal.UpdateBridgeInfo()
}
return true
} else {
portal.log.Warnln("Failed to set room name:", err)
}
}
}
return false
}
func (portal *Portal) UpdateTopic(topic string, setBy types.JID, updateInfo bool) bool {
if portal.Topic != topic || !portal.TopicSet {
portal.log.Debugfln("Updating topic %q -> %q", portal.Topic, topic)
portal.Topic = topic
portal.TopicSet = false
intent := portal.MainIntent()
if !setBy.IsEmpty() {
intent = portal.bridge.GetPuppetByJID(setBy).IntentFor(portal)
}
_, err := intent.SetRoomTopic(portal.MXID, topic)
if errors.Is(err, mautrix.MForbidden) && intent != portal.MainIntent() {
_, err = portal.MainIntent().SetRoomTopic(portal.MXID, topic)
}
if err == nil {
portal.TopicSet = true
if updateInfo {
portal.UpdateBridgeInfo()
portal.Update(nil)
}
return true
} else {
portal.log.Warnln("Failed to set room topic:", err)
}
}
return false
}
func (portal *Portal) UpdateMetadata(user *User, groupInfo *types.GroupInfo) bool {
if portal.IsPrivateChat() {
return false
} else if portal.IsStatusBroadcastList() {
update := false
update = portal.UpdateName(StatusBroadcastName, types.EmptyJID, false) || update
update = portal.UpdateTopic(StatusBroadcastTopic, types.EmptyJID, false) || update
return update
} else if portal.IsBroadcastList() {
update := false
//broadcastMetadata, err := user.Conn.GetBroadcastMetadata(portal.Key.JID)
//if err == nil && broadcastMetadata.Status == 200 {
// portal.SyncBroadcastRecipients(user, broadcastMetadata)
// update = portal.UpdateName(broadcastMetadata.Name, "", nil, false) || update
//} else {
// user.Conn.Store.ContactsLock.RLock()
// contact, _ := user.Conn.Store.Contacts[portal.Key.JID]
// user.Conn.Store.ContactsLock.RUnlock()
// update = portal.UpdateName(contact.Name, "", nil, false) || update
//}
//update = portal.UpdateTopic(BroadcastTopic, "", nil, false) || update
return update
}
if groupInfo == nil {
var err error
groupInfo, err = user.Client.GetGroupInfo(portal.Key.JID)
if err != nil {
portal.log.Errorln("Failed to get group info:", err)
return false
}
}
portal.SyncParticipants(user, groupInfo)
update := false
update = portal.UpdateName(groupInfo.Name, groupInfo.NameSetBy, false) || update
update = portal.UpdateTopic(groupInfo.Topic, groupInfo.TopicSetBy, false) || update
if portal.ExpirationTime != groupInfo.DisappearingTimer {
update = true
portal.ExpirationTime = groupInfo.DisappearingTimer
}
portal.RestrictMessageSending(groupInfo.IsAnnounce)
portal.RestrictMetadataChanges(groupInfo.IsLocked)
return update
}
func (portal *Portal) ensureUserInvited(user *User) bool {
return user.ensureInvited(portal.MainIntent(), portal.MXID, portal.IsPrivateChat())
}
func (portal *Portal) UpdateMatrixRoom(user *User, groupInfo *types.GroupInfo) bool {
if len(portal.MXID) == 0 {
return false
}
portal.log.Infoln("Syncing portal for", user.MXID)
portal.ensureUserInvited(user)
go portal.addToSpace(user)
update := false
update = portal.UpdateMetadata(user, groupInfo) || update
if !portal.IsPrivateChat() && !portal.IsBroadcastList() {
update = portal.UpdateAvatar(user, types.EmptyJID, false) || update
}
if update || portal.LastSync.Add(24*time.Hour).Before(time.Now()) {
portal.LastSync = time.Now()
portal.Update(nil)
portal.UpdateBridgeInfo()
}
return true
}
func (portal *Portal) GetBasePowerLevels() *event.PowerLevelsEventContent {
anyone := 0
nope := 99
invite := 50
if portal.bridge.Config.Bridge.AllowUserInvite {
invite = 0
}
return &event.PowerLevelsEventContent{
UsersDefault: anyone,
EventsDefault: anyone,
RedactPtr: &anyone,
StateDefaultPtr: &nope,
BanPtr: &nope,
InvitePtr: &invite,
Users: map[id.UserID]int{
portal.MainIntent().UserID: 100,
},
Events: map[string]int{
event.StateRoomName.Type: anyone,
event.StateRoomAvatar.Type: anyone,
event.StateTopic.Type: anyone,
event.EventReaction.Type: anyone,
event.EventRedaction.Type: anyone,
},
}
}
func (portal *Portal) applyPowerLevelFixes(levels *event.PowerLevelsEventContent) bool {
changed := false
changed = levels.EnsureEventLevel(event.EventReaction, 0) || changed
changed = levels.EnsureEventLevel(event.EventRedaction, 0) || changed
return changed
}
func (portal *Portal) ChangeAdminStatus(jids []types.JID, setAdmin bool) id.EventID {
levels, err := portal.MainIntent().PowerLevels(portal.MXID)
if err != nil {
levels = portal.GetBasePowerLevels()
}
newLevel := 0
if setAdmin {
newLevel = 50
}
changed := portal.applyPowerLevelFixes(levels)
for _, jid := range jids {
puppet := portal.bridge.GetPuppetByJID(jid)
changed = levels.EnsureUserLevel(puppet.MXID, newLevel) || changed
user := portal.bridge.GetUserByJID(jid)
if user != nil {
changed = levels.EnsureUserLevel(user.MXID, newLevel) || changed
}
}
if changed {
resp, err := portal.MainIntent().SetPowerLevels(portal.MXID, levels)
if err != nil {
portal.log.Errorln("Failed to change power levels:", err)
} else {
return resp.EventID
}
}
return ""
}
func (portal *Portal) RestrictMessageSending(restrict bool) id.EventID {
levels, err := portal.MainIntent().PowerLevels(portal.MXID)
if err != nil {
levels = portal.GetBasePowerLevels()
}
newLevel := 0
if restrict {
newLevel = 50
}
changed := portal.applyPowerLevelFixes(levels)
if levels.EventsDefault == newLevel && !changed {
return ""
}
levels.EventsDefault = newLevel
resp, err := portal.MainIntent().SetPowerLevels(portal.MXID, levels)
if err != nil {
portal.log.Errorln("Failed to change power levels:", err)
return ""
} else {
return resp.EventID
}
}
func (portal *Portal) RestrictMetadataChanges(restrict bool) id.EventID {
levels, err := portal.MainIntent().PowerLevels(portal.MXID)
if err != nil {
levels = portal.GetBasePowerLevels()
}
newLevel := 0
if restrict {
newLevel = 50
}
changed := portal.applyPowerLevelFixes(levels)
changed = levels.EnsureEventLevel(event.StateRoomName, newLevel) || changed
changed = levels.EnsureEventLevel(event.StateRoomAvatar, newLevel) || changed
changed = levels.EnsureEventLevel(event.StateTopic, newLevel) || changed
if changed {
resp, err := portal.MainIntent().SetPowerLevels(portal.MXID, levels)
if err != nil {
portal.log.Errorln("Failed to change power levels:", err)
} else {
return resp.EventID
}
}
return ""
}
func (portal *Portal) getBridgeInfoStateKey() string {
return fmt.Sprintf("net.maunium.whatsapp://whatsapp/%s", portal.Key.JID)
}
func (portal *Portal) getBridgeInfo() (string, event.BridgeEventContent) {
bridgeInfo := event.BridgeEventContent{
BridgeBot: portal.bridge.Bot.UserID,
Creator: portal.MainIntent().UserID,
Protocol: event.BridgeInfoSection{
ID: "whatsapp",
DisplayName: "WhatsApp",
AvatarURL: portal.bridge.Config.AppService.Bot.ParsedAvatar.CUString(),
ExternalURL: "https://www.whatsapp.com/",
},
Channel: event.BridgeInfoSection{
ID: portal.Key.JID.String(),
DisplayName: portal.Name,
AvatarURL: portal.AvatarURL.CUString(),
},
}
return portal.getBridgeInfoStateKey(), bridgeInfo
}
func (portal *Portal) UpdateBridgeInfo() {
if len(portal.MXID) == 0 {
portal.log.Debugln("Not updating bridge info: no Matrix room created")
return
}
portal.log.Debugln("Updating bridge info...")
stateKey, content := portal.getBridgeInfo()
_, err := portal.MainIntent().SendStateEvent(portal.MXID, event.StateBridge, stateKey, content)
if err != nil {
portal.log.Warnln("Failed to update m.bridge:", err)
}
// TODO remove this once https://github.com/matrix-org/matrix-doc/pull/2346 is in spec
_, err = portal.MainIntent().SendStateEvent(portal.MXID, event.StateHalfShotBridge, stateKey, content)
if err != nil {
portal.log.Warnln("Failed to update uk.half-shot.bridge:", err)
}
}
func (portal *Portal) GetEncryptionEventContent() (evt *event.EncryptionEventContent) {
evt = &event.EncryptionEventContent{Algorithm: id.AlgorithmMegolmV1}
if rot := portal.bridge.Config.Bridge.Encryption.Rotation; rot.EnableCustom {
evt.RotationPeriodMillis = rot.Milliseconds
evt.RotationPeriodMessages = rot.Messages
}
return
}
func (portal *Portal) CreateMatrixRoom(user *User, groupInfo *types.GroupInfo, isFullInfo, backfill bool) error {
portal.roomCreateLock.Lock()
defer portal.roomCreateLock.Unlock()
if len(portal.MXID) > 0 {
return nil
}
intent := portal.MainIntent()
if err := intent.EnsureRegistered(); err != nil {
return err
}
portal.log.Infoln("Creating Matrix room. Info source:", user.MXID)
//var broadcastMetadata *types.BroadcastListInfo
if portal.IsPrivateChat() {
puppet := portal.bridge.GetPuppetByJID(portal.Key.JID)
puppet.SyncContact(user, true, false, "creating private chat portal")
if portal.bridge.Config.Bridge.PrivateChatPortalMeta || portal.bridge.Config.Bridge.Encryption.Default {
portal.Name = puppet.Displayname
portal.AvatarURL = puppet.AvatarURL
portal.Avatar = puppet.Avatar
} else {
portal.Name = ""
}
portal.Topic = PrivateChatTopic
} else if portal.IsStatusBroadcastList() {
if !portal.bridge.Config.Bridge.EnableStatusBroadcast {
portal.log.Debugln("Status bridging is disabled in config, not creating room after all")
return ErrStatusBroadcastDisabled
}
portal.Name = StatusBroadcastName
portal.Topic = StatusBroadcastTopic
} else if portal.IsBroadcastList() {
//var err error
//broadcastMetadata, err = user.Conn.GetBroadcastMetadata(portal.Key.JID)
//if err == nil && broadcastMetadata.Status == 200 {
// portal.Name = broadcastMetadata.Name
//} else {
// user.Conn.Store.ContactsLock.RLock()
// contact, _ := user.Conn.Store.Contacts[portal.Key.JID]
// user.Conn.Store.ContactsLock.RUnlock()
// portal.Name = contact.Name
//}
//if len(portal.Name) == 0 {
// portal.Name = UnnamedBroadcastName
//}
//portal.Topic = BroadcastTopic
portal.log.Debugln("Broadcast list is not yet supported, not creating room after all")
return fmt.Errorf("broadcast list bridging is currently not supported")
} else {
if groupInfo == nil || !isFullInfo {
foundInfo, err := user.Client.GetGroupInfo(portal.Key.JID)
// Ensure that the user is actually a participant in the conversation
// before creating the matrix room
if errors.Is(err, whatsmeow.ErrNotInGroup) {
user.log.Debugfln("Skipping creating matrix room for %s because the user is not a participant", portal.Key.JID)
user.bridge.DB.Backfill.DeleteAllForPortal(user.MXID, portal.Key)
user.bridge.DB.HistorySync.DeleteAllMessagesForPortal(user.MXID, portal.Key)
return err
} else if err != nil {
portal.log.Warnfln("Failed to get group info through %s: %v", user.JID, err)
} else {
groupInfo = foundInfo
isFullInfo = true
}
}
if groupInfo != nil {
portal.Name = groupInfo.Name
portal.Topic = groupInfo.Topic
}
portal.UpdateAvatar(user, types.EmptyJID, false)
}
bridgeInfoStateKey, bridgeInfo := portal.getBridgeInfo()
initialState := []*event.Event{{
Type: event.StatePowerLevels,
Content: event.Content{
Parsed: portal.GetBasePowerLevels(),
},
}, {
Type: event.StateBridge,
Content: event.Content{Parsed: bridgeInfo},
StateKey: &bridgeInfoStateKey,
}, {
// TODO remove this once https://github.com/matrix-org/matrix-doc/pull/2346 is in spec
Type: event.StateHalfShotBridge,
Content: event.Content{Parsed: bridgeInfo},
StateKey: &bridgeInfoStateKey,
}}
if !portal.AvatarURL.IsEmpty() {
initialState = append(initialState, &event.Event{
Type: event.StateRoomAvatar,
Content: event.Content{
Parsed: event.RoomAvatarEventContent{URL: portal.AvatarURL},
},
})
portal.AvatarSet = true
}
var invite []id.UserID
if portal.bridge.Config.Bridge.Encryption.Default {
initialState = append(initialState, &event.Event{
Type: event.StateEncryption,
Content: event.Content{
Parsed: portal.GetEncryptionEventContent(),
},
})
portal.Encrypted = true
if portal.IsPrivateChat() {
invite = append(invite, portal.bridge.Bot.UserID)
}
}
creationContent := make(map[string]interface{})
if !portal.bridge.Config.Bridge.FederateRooms {
creationContent["m.federate"] = false
}
autoJoinInvites := portal.bridge.Config.Homeserver.Software == bridgeconfig.SoftwareHungry
if autoJoinInvites {
portal.log.Debugfln("Hungryserv mode: adding all group members in create request")
if groupInfo != nil {
// TODO non-hungryserv could also include all members in invites, and then send joins manually?
participants, powerLevels := portal.SyncParticipants(user, groupInfo)
invite = append(invite, participants...)
if initialState[0].Type != event.StatePowerLevels {
panic(fmt.Errorf("unexpected type %s in first initial state event", initialState[0].Type.Type))
}
initialState[0].Content.Parsed = powerLevels
} else {
invite = append(invite, user.MXID)
}
}
resp, err := intent.CreateRoom(&mautrix.ReqCreateRoom{
Visibility: "private",
Name: portal.Name,
Topic: portal.Topic,
Invite: invite,
Preset: "private_chat",
IsDirect: portal.IsPrivateChat(),
InitialState: initialState,
CreationContent: creationContent,
BeeperAutoJoinInvites: autoJoinInvites,
})
if err != nil {
return err
}
portal.NameSet = len(portal.Name) > 0
portal.TopicSet = len(portal.Topic) > 0
portal.MXID = resp.RoomID
portal.bridge.portalsLock.Lock()
portal.bridge.portalsByMXID[portal.MXID] = portal
portal.bridge.portalsLock.Unlock()
portal.Update(nil)
portal.log.Infoln("Matrix room created:", portal.MXID)
// We set the memberships beforehand to make sure the encryption key exchange in initial backfill knows the users are here.
inviteMembership := event.MembershipInvite
if autoJoinInvites {
inviteMembership = event.MembershipJoin
}
for _, userID := range invite {
portal.bridge.StateStore.SetMembership(portal.MXID, userID, inviteMembership)
}
if !autoJoinInvites {
portal.ensureUserInvited(user)
}
user.syncChatDoublePuppetDetails(portal, true)
go portal.addToSpace(user)
if groupInfo != nil {
if groupInfo.IsEphemeral {
portal.ExpirationTime = groupInfo.DisappearingTimer
portal.Update(nil)
}
if !autoJoinInvites {
portal.SyncParticipants(user, groupInfo)
}
if groupInfo.IsAnnounce {
portal.RestrictMessageSending(groupInfo.IsAnnounce)
}
if groupInfo.IsLocked {
portal.RestrictMetadataChanges(groupInfo.IsLocked)
}
}
//if broadcastMetadata != nil {
// portal.SyncBroadcastRecipients(user, broadcastMetadata)
//}
if portal.IsPrivateChat() {
puppet := user.bridge.GetPuppetByJID(portal.Key.JID)
if portal.bridge.Config.Bridge.Encryption.Default {
err = portal.bridge.Bot.EnsureJoined(portal.MXID)
if err != nil {
portal.log.Errorln("Failed to join created portal with bridge bot for e2be:", err)
}
}
user.UpdateDirectChats(map[id.UserID][]id.RoomID{puppet.MXID: {portal.MXID}})
}
firstEventResp, err := portal.MainIntent().SendMessageEvent(portal.MXID, PortalCreationDummyEvent, struct{}{})
if err != nil {
portal.log.Errorln("Failed to send dummy event to mark portal creation:", err)
} else {
portal.FirstEventID = firstEventResp.EventID
portal.Update(nil)
}
if user.bridge.Config.Bridge.HistorySync.Backfill && backfill {
portals := []*Portal{portal}
user.EnqueueImmediateBackfills(portals)
user.EnqueueDeferredBackfills(portals)
user.BackfillQueue.ReCheck()
}
return nil
}
func (portal *Portal) addToSpace(user *User) {
spaceID := user.GetSpaceRoom()
if len(spaceID) == 0 || user.IsInSpace(portal.Key) {
return
}
_, err := portal.bridge.Bot.SendStateEvent(spaceID, event.StateSpaceChild, portal.MXID.String(), &event.SpaceChildEventContent{
Via: []string{portal.bridge.Config.Homeserver.Domain},
})
if err != nil {
portal.log.Errorfln("Failed to add room to %s's personal filtering space (%s): %v", user.MXID, spaceID, err)
} else {
portal.log.Debugfln("Added room to %s's personal filtering space (%s)", user.MXID, spaceID)
user.MarkInSpace(portal.Key)
}
}
func (portal *Portal) IsPrivateChat() bool {
return portal.Key.JID.Server == types.DefaultUserServer
}
func (portal *Portal) IsGroupChat() bool {
return portal.Key.JID.Server == types.GroupServer
}
func (portal *Portal) IsBroadcastList() bool {
return portal.Key.JID.Server == types.BroadcastServer
}
func (portal *Portal) IsStatusBroadcastList() bool {
return portal.Key.JID == types.StatusBroadcastJID
}
func (portal *Portal) HasRelaybot() bool {
return portal.bridge.Config.Bridge.Relay.Enabled && len(portal.RelayUserID) > 0
}
func (portal *Portal) GetRelayUser() *User {
if !portal.HasRelaybot() {
return nil
} else if portal.relayUser == nil {
portal.relayUser = portal.bridge.GetUserByMXID(portal.RelayUserID)
}
return portal.relayUser
}
func (portal *Portal) MainIntent() *appservice.IntentAPI {
if portal.IsPrivateChat() {
return portal.bridge.GetPuppetByJID(portal.Key.JID).DefaultIntent()
}
return portal.bridge.Bot
}
func (portal *Portal) SetReply(content *event.MessageEventContent, replyTo *ReplyInfo, isBackfill bool) bool {
if replyTo == nil {
return false
}
message := portal.bridge.DB.Message.GetByJID(portal.Key, replyTo.MessageID)
if message == nil || message.IsFakeMXID() {
if isBackfill && portal.bridge.Config.Homeserver.Software == bridgeconfig.SoftwareHungry {
content.RelatesTo = (&event.RelatesTo{}).SetReplyTo(portal.deterministicEventID(replyTo.Sender, replyTo.MessageID, ""))
return true
}
return false
}
evt, err := portal.MainIntent().GetEvent(portal.MXID, message.MXID)
if err != nil {
portal.log.Warnln("Failed to get reply target:", err)
content.RelatesTo = (&event.RelatesTo{}).SetReplyTo(message.MXID)
return true
}
_ = evt.Content.ParseRaw(evt.Type)
if evt.Type == event.EventEncrypted {
decryptedEvt, err := portal.bridge.Crypto.Decrypt(evt)
if err != nil {
portal.log.Warnln("Failed to decrypt reply target:", err)
} else {
evt = decryptedEvt
}
}
content.SetReply(evt)
return true
}
func (portal *Portal) HandleMessageReaction(intent *appservice.IntentAPI, user *User, info *types.MessageInfo, reaction *waProto.ReactionMessage, existingMsg *database.Message) {
if existingMsg != nil {
_, _ = portal.MainIntent().RedactEvent(portal.MXID, existingMsg.MXID, mautrix.ReqRedact{
Reason: "The undecryptable message was actually a reaction",
})
}
targetJID := reaction.GetKey().GetId()
if reaction.GetText() == "" {
existing := portal.bridge.DB.Reaction.GetByTargetJID(portal.Key, targetJID, info.Sender)
if existing == nil {
portal.log.Debugfln("Dropping removal %s of unknown reaction to %s from %s", info.ID, targetJID, info.Sender)
return
}
resp, err := intent.RedactEvent(portal.MXID, existing.MXID)
if err != nil {
portal.log.Errorfln("Failed to redact reaction %s/%s from %s to %s: %v", existing.MXID, existing.JID, info.Sender, targetJID, err)
}
portal.finishHandling(existingMsg, info, resp.EventID, database.MsgReaction, database.MsgNoError)
existing.Delete()
} else {
target := portal.bridge.DB.Message.GetByJID(portal.Key, targetJID)
if target == nil {
portal.log.Debugfln("Dropping reaction %s from %s to unknown message %s", info.ID, info.Sender, targetJID)
return
}
var content event.ReactionEventContent
content.RelatesTo = event.RelatesTo{
Type: event.RelAnnotation,
EventID: target.MXID,
Key: variationselector.Add(reaction.GetText()),
}
resp, err := intent.SendMassagedMessageEvent(portal.MXID, event.EventReaction, &content, info.Timestamp.UnixMilli())
if err != nil {
portal.log.Errorfln("Failed to bridge reaction %s from %s to %s: %v", info.ID, info.Sender, target.JID, err)
return
}
portal.finishHandling(existingMsg, info, resp.EventID, database.MsgReaction, database.MsgNoError)
portal.upsertReaction(nil, intent, target.JID, info.Sender, resp.EventID, info.ID)
}
}
func (portal *Portal) HandleMessageRevoke(user *User, info *types.MessageInfo, key *waProto.MessageKey) bool {
msg := portal.bridge.DB.Message.GetByJID(portal.Key, key.GetId())
if msg == nil || msg.IsFakeMXID() {
return false
}
intent := portal.bridge.GetPuppetByJID(info.Sender).IntentFor(portal)
_, err := intent.RedactEvent(portal.MXID, msg.MXID)
if err != nil {
if errors.Is(err, mautrix.MForbidden) {
_, err = portal.MainIntent().RedactEvent(portal.MXID, msg.MXID)
if err != nil {
portal.log.Errorln("Failed to redact %s: %v", msg.JID, err)
}
}
} else {
msg.Delete()
}
return true
}
func (portal *Portal) deleteForMe(user *User, content *events.DeleteForMe) bool {
matrixUsers, err := portal.GetMatrixUsers()
if err != nil {
portal.log.Errorln("Failed to get Matrix users in portal to see if DeleteForMe should be handled:", err)
return false
}
if len(matrixUsers) == 1 && matrixUsers[0] == user.MXID {
msg := portal.bridge.DB.Message.GetByJID(portal.Key, content.MessageID)
if msg == nil || msg.IsFakeMXID() {
return false
}
_, err := portal.MainIntent().RedactEvent(portal.MXID, msg.MXID)
if err != nil {
portal.log.Errorln("Failed to redact %s: %v", msg.JID, err)
} else {
msg.Delete()
}
return true
}
return false
}
func (portal *Portal) sendMainIntentMessage(content *event.MessageEventContent) (*mautrix.RespSendEvent, error) {
return portal.sendMessage(portal.MainIntent(), event.EventMessage, content, nil, 0)
}
func (portal *Portal) encrypt(intent *appservice.IntentAPI, content *event.Content, eventType event.Type) (event.Type, error) {
if !portal.Encrypted || portal.bridge.Crypto == nil {
return eventType, nil
}
intent.AddDoublePuppetValue(content)
// TODO maybe the locking should be inside mautrix-go?
portal.encryptLock.Lock()
defer portal.encryptLock.Unlock()
err := portal.bridge.Crypto.Encrypt(portal.MXID, eventType, content)
if err != nil {
return eventType, fmt.Errorf("failed to encrypt event: %w", err)
}
return event.EventEncrypted, nil
}
func (portal *Portal) sendMessage(intent *appservice.IntentAPI, eventType event.Type, content *event.MessageEventContent, extraContent map[string]interface{}, timestamp int64) (*mautrix.RespSendEvent, error) {
wrappedContent := event.Content{Parsed: content, Raw: extraContent}
var err error
eventType, err = portal.encrypt(intent, &wrappedContent, eventType)
if err != nil {
return nil, err
}
_, _ = intent.UserTyping(portal.MXID, false, 0)
if timestamp == 0 {
return intent.SendMessageEvent(portal.MXID, eventType, &wrappedContent)
} else {
return intent.SendMassagedMessageEvent(portal.MXID, eventType, &wrappedContent, timestamp)
}
}
type ReplyInfo struct {
MessageID types.MessageID
Sender types.JID
}
type Replyable interface {
GetStanzaId() string
GetParticipant() string
}
func GetReply(replyable Replyable) *ReplyInfo {
if replyable.GetStanzaId() == "" {
return nil
}
sender, err := types.ParseJID(replyable.GetParticipant())
if err != nil {
return nil
}
return &ReplyInfo{
MessageID: types.MessageID(replyable.GetStanzaId()),
Sender: sender,
}
}
type ConvertedMessage struct {
Intent *appservice.IntentAPI
Type event.Type
Content *event.MessageEventContent
Extra map[string]interface{}
Caption *event.MessageEventContent
MultiEvent []*event.MessageEventContent
ReplyTo *ReplyInfo
ExpiresIn uint32
Error database.MessageErrorType
MediaKey []byte
}
func (cm *ConvertedMessage) MergeCaption() {
if cm.Caption == nil {
return
}
cm.Content.FileName = cm.Content.Body
extensibleCaption := map[string]interface{}{
"org.matrix.msc1767.text": cm.Caption.Body,
}
cm.Extra["org.matrix.msc1767.caption"] = extensibleCaption
cm.Content.Body = cm.Caption.Body
if cm.Caption.Format == event.FormatHTML {
cm.Content.Format = event.FormatHTML
cm.Content.FormattedBody = cm.Caption.FormattedBody
extensibleCaption["org.matrix.msc1767.html"] = cm.Caption.FormattedBody
}
cm.Caption = nil
}
func (portal *Portal) convertTextMessage(intent *appservice.IntentAPI, source *User, msg *waProto.Message) *ConvertedMessage {
content := &event.MessageEventContent{
Body: msg.GetConversation(),
MsgType: event.MsgText,
}
if len(msg.GetExtendedTextMessage().GetText()) > 0 {
content.Body = msg.GetExtendedTextMessage().GetText()
}
contextInfo := msg.GetExtendedTextMessage().GetContextInfo()
portal.bridge.Formatter.ParseWhatsApp(portal.MXID, content, contextInfo.GetMentionedJid(), false, false)
expiresIn := contextInfo.GetExpiration()
extraAttrs := map[string]interface{}{}
extraAttrs["com.beeper.linkpreviews"] = portal.convertURLPreviewToBeeper(intent, source, msg.GetExtendedTextMessage())
return &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: content,
ReplyTo: GetReply(contextInfo),
ExpiresIn: expiresIn,
Extra: extraAttrs,
}
}
func (portal *Portal) convertTemplateMessage(intent *appservice.IntentAPI, source *User, info *types.MessageInfo, tplMsg *waProto.TemplateMessage) *ConvertedMessage {
converted := &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: &event.MessageEventContent{
Body: "Unsupported business message",
MsgType: event.MsgText,
},
ReplyTo: GetReply(tplMsg.GetContextInfo()),
ExpiresIn: tplMsg.GetContextInfo().GetExpiration(),
}
tpl := tplMsg.GetHydratedTemplate()
if tpl == nil {
return converted
}
content := tpl.GetHydratedContentText()
if buttons := tpl.GetHydratedButtons(); len(buttons) > 0 {
addButtonText := false
descriptions := make([]string, len(buttons))
for i, rawButton := range buttons {
switch button := rawButton.GetHydratedButton().(type) {
case *waProto.HydratedTemplateButton_QuickReplyButton:
descriptions[i] = fmt.Sprintf("<%s>", button.QuickReplyButton.GetDisplayText())
addButtonText = true
case *waProto.HydratedTemplateButton_UrlButton:
descriptions[i] = fmt.Sprintf("[%s](%s)", button.UrlButton.GetDisplayText(), button.UrlButton.GetUrl())
case *waProto.HydratedTemplateButton_CallButton:
descriptions[i] = fmt.Sprintf("[%s](tel:%s)", button.CallButton.GetDisplayText(), button.CallButton.GetPhoneNumber())
}
}
description := strings.Join(descriptions, " - ")
if addButtonText {
description += "\nUse the WhatsApp app to click buttons"
}
content = fmt.Sprintf("%s\n\n%s", content, description)
}
if footer := tpl.GetHydratedFooterText(); footer != "" {
content = fmt.Sprintf("%s\n\n%s", content, footer)
}
var convertedTitle *ConvertedMessage
switch title := tpl.GetTitle().(type) {
case *waProto.TemplateMessage_HydratedFourRowTemplate_DocumentMessage:
convertedTitle = portal.convertMediaMessage(intent, source, info, title.DocumentMessage, "file attachment", false)
case *waProto.TemplateMessage_HydratedFourRowTemplate_ImageMessage:
convertedTitle = portal.convertMediaMessage(intent, source, info, title.ImageMessage, "photo", false)
case *waProto.TemplateMessage_HydratedFourRowTemplate_VideoMessage:
convertedTitle = portal.convertMediaMessage(intent, source, info, title.VideoMessage, "video attachment", false)
case *waProto.TemplateMessage_HydratedFourRowTemplate_LocationMessage:
content = fmt.Sprintf("Unsupported location message\n\n%s", content)
case *waProto.TemplateMessage_HydratedFourRowTemplate_HydratedTitleText:
content = fmt.Sprintf("%s\n\n%s", title.HydratedTitleText, content)
}
converted.Content.Body = content
portal.bridge.Formatter.ParseWhatsApp(portal.MXID, converted.Content, nil, true, false)
if convertedTitle != nil {
converted.MediaKey = convertedTitle.MediaKey
converted.Extra = convertedTitle.Extra
converted.Caption = converted.Content
converted.Content = convertedTitle.Content
converted.Error = convertedTitle.Error
}
if converted.Extra == nil {
converted.Extra = make(map[string]interface{})
}
converted.Extra["fi.mau.whatsapp.hydrated_template_id"] = tpl.GetTemplateId()
return converted
}
func (portal *Portal) convertTemplateButtonReplyMessage(intent *appservice.IntentAPI, msg *waProto.TemplateButtonReplyMessage) *ConvertedMessage {
return &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: &event.MessageEventContent{
Body: msg.GetSelectedDisplayText(),
MsgType: event.MsgText,
},
Extra: map[string]interface{}{
"fi.mau.whatsapp.template_button_reply": map[string]interface{}{
"id": msg.GetSelectedId(),
"index": msg.GetSelectedIndex(),
},
},
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
}
}
func (portal *Portal) convertListMessage(intent *appservice.IntentAPI, source *User, msg *waProto.ListMessage) *ConvertedMessage {
converted := &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: &event.MessageEventContent{
Body: "Unsupported business message",
MsgType: event.MsgText,
},
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
}
body := msg.GetDescription()
if msg.GetTitle() != "" {
if body == "" {
body = msg.GetTitle()
} else {
body = fmt.Sprintf("%s\n\n%s", msg.GetTitle(), body)
}
}
randomID := util.RandomString(64)
body = fmt.Sprintf("%s\n%s", body, randomID)
if msg.GetFooterText() != "" {
body = fmt.Sprintf("%s\n\n%s", body, msg.GetFooterText())
}
converted.Content.Body = body
portal.bridge.Formatter.ParseWhatsApp(portal.MXID, converted.Content, nil, false, true)
var optionsMarkdown strings.Builder
_, _ = fmt.Fprintf(&optionsMarkdown, "#### %s\n", msg.GetButtonText())
for _, section := range msg.GetSections() {
nesting := ""
if section.GetTitle() != "" {
_, _ = fmt.Fprintf(&optionsMarkdown, "* %s\n", section.GetTitle())
nesting = " "
}
for _, row := range section.GetRows() {
if row.GetDescription() != "" {
_, _ = fmt.Fprintf(&optionsMarkdown, "%s* %s: %s\n", nesting, row.GetTitle(), row.GetDescription())
} else {
_, _ = fmt.Fprintf(&optionsMarkdown, "%s* %s\n", nesting, row.GetTitle())
}
}
}
optionsMarkdown.WriteString("\nUse the WhatsApp app to respond")
rendered := format.RenderMarkdown(optionsMarkdown.String(), true, false)
converted.Content.Body = strings.Replace(converted.Content.Body, randomID, rendered.Body, 1)
converted.Content.FormattedBody = strings.Replace(converted.Content.FormattedBody, randomID, rendered.FormattedBody, 1)
return converted
}
func (portal *Portal) convertListResponseMessage(intent *appservice.IntentAPI, msg *waProto.ListResponseMessage) *ConvertedMessage {
var body string
if msg.GetTitle() != "" {
if msg.GetDescription() != "" {
body = fmt.Sprintf("%s\n\n%s", msg.GetTitle(), msg.GetDescription())
} else {
body = msg.GetTitle()
}
} else if msg.GetDescription() != "" {
body = msg.GetDescription()
} else {
body = "Unsupported list reply message"
}
return &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: &event.MessageEventContent{
Body: body,
MsgType: event.MsgText,
},
Extra: map[string]interface{}{
"fi.mau.whatsapp.list_reply": map[string]interface{}{
"row_id": msg.GetSingleSelectReply().GetSelectedRowId(),
},
},
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
}
}
func (portal *Portal) convertPollUpdateMessage(intent *appservice.IntentAPI, source *User, info *types.MessageInfo, msg *waProto.PollUpdateMessage) *ConvertedMessage {
if portal.bridge.Config.Bridge.ExtEvPolls == 0 {
return nil
}
pollMessage := portal.bridge.DB.Message.GetByJID(portal.Key, msg.GetPollCreationMessageKey().GetId())
if pollMessage == nil {
portal.log.Warnfln("Failed to convert vote message %s: poll message %s not found", info.ID, msg.GetPollCreationMessageKey().GetId())
return nil
}
vote, err := source.Client.DecryptPollVote(&events.Message{
Info: *info,
Message: &waProto.Message{PollUpdateMessage: msg},
})
if err != nil {
portal.log.Errorfln("Failed to decrypt vote message %s: %v", info.ID, err)
return nil
}
selectedHashes := make([]string, len(vote.GetSelectedOptions()))
for i, opt := range vote.GetSelectedOptions() {
selectedHashes[i] = hex.EncodeToString(opt)
}
evtType := event.Type{Class: event.MessageEventType, Type: "org.matrix.msc3381.poll.response"}
if portal.bridge.Config.Bridge.ExtEvPolls == 2 {
evtType.Type = "org.matrix.msc3381.v2.poll.response"
}
return &ConvertedMessage{
Intent: intent,
Type: evtType,
Content: &event.MessageEventContent{
RelatesTo: &event.RelatesTo{
Type: event.RelReference,
EventID: pollMessage.MXID,
},
},
Extra: map[string]any{
"org.matrix.msc3381.poll.response": map[string]any{
"answers": selectedHashes,
},
"org.matrix.msc3381.v2.selections": selectedHashes,
},
}
}
func (portal *Portal) convertPollCreationMessage(intent *appservice.IntentAPI, msg *waProto.PollCreationMessage) *ConvertedMessage {
optionNames := make([]string, len(msg.GetOptions()))
optionsListText := make([]string, len(optionNames))
optionsListHTML := make([]string, len(optionNames))
msc3381Answers := make([]map[string]any, len(optionNames))
msc3381V2Answers := make([]map[string]any, len(optionNames))
for i, opt := range msg.GetOptions() {
optionNames[i] = opt.GetOptionName()
optionsListText[i] = fmt.Sprintf("%d. %s\n", i+1, optionNames[i])
optionsListHTML[i] = fmt.Sprintf("%s", event.TextToHTML(optionNames[i]))
optionHash := sha256.Sum256([]byte(opt.GetOptionName()))
optionHashStr := hex.EncodeToString(optionHash[:])
msc3381Answers[i] = map[string]any{
"id": optionHashStr,
"org.matrix.msc1767.text": opt.GetOptionName(),
}
msc3381V2Answers[i] = map[string]any{
"org.matrix.msc3381.v2.id": optionHashStr,
"org.matrix.msc1767.markup": []map[string]any{
{"mimetype": "text/plain", "body": opt.GetOptionName()},
},
}
}
body := fmt.Sprintf("%s\n\n%s", msg.GetName(), strings.Join(optionsListText, "\n"))
formattedBody := fmt.Sprintf("%s
%s
", event.TextToHTML(msg.GetName()), strings.Join(optionsListHTML, ""))
maxChoices := int(msg.GetSelectableOptionsCount())
if maxChoices <= 0 {
maxChoices = len(optionNames)
}
evtType := event.EventMessage
if portal.bridge.Config.Bridge.ExtEvPolls == 1 {
evtType.Type = "org.matrix.msc3381.poll.start"
} else if portal.bridge.Config.Bridge.ExtEvPolls == 2 {
evtType.Type = "org.matrix.msc3381.v2.poll.start"
}
return &ConvertedMessage{
Intent: intent,
Type: evtType,
Content: &event.MessageEventContent{
Body: body,
MsgType: event.MsgText,
Format: event.FormatHTML,
FormattedBody: formattedBody,
},
Extra: map[string]any{
// Custom metadata
"fi.mau.whatsapp.poll": map[string]any{
"option_names": optionNames,
"selectable_options_count": msg.GetSelectableOptionsCount(),
},
// Current extensible events (as of November 2022)
"org.matrix.msc1767.markup": []map[string]any{
{"mimetype": "text/html", "body": formattedBody},
{"mimetype": "text/plain", "body": body},
},
"org.matrix.msc3381.v2.poll": map[string]any{
"kind": "org.matrix.msc3381.v2.disclosed",
"max_selections": maxChoices,
"question": map[string]any{
"m.markup": []map[string]any{
{"mimetype": "text/plain", "body": msg.GetName()},
},
},
"answers": msc3381V2Answers,
},
// Legacy extensible events
"org.matrix.msc1767.message": []map[string]any{
{"mimetype": "text/html", "body": formattedBody},
{"mimetype": "text/plain", "body": body},
},
"org.matrix.msc3381.poll.start": map[string]any{
"kind": "org.matrix.msc3381.poll.disclosed",
"max_selections": maxChoices,
"question": map[string]any{
"m.text": msg.GetName(),
},
"answers": msc3381Answers,
},
},
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
}
}
func (portal *Portal) convertLiveLocationMessage(intent *appservice.IntentAPI, msg *waProto.LiveLocationMessage) *ConvertedMessage {
content := &event.MessageEventContent{
Body: "Started sharing live location",
MsgType: event.MsgNotice,
}
if len(msg.GetCaption()) > 0 {
content.Body += ": " + msg.GetCaption()
}
return &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: content,
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
}
}
func (portal *Portal) convertLocationMessage(intent *appservice.IntentAPI, msg *waProto.LocationMessage) *ConvertedMessage {
url := msg.GetUrl()
if len(url) == 0 {
url = fmt.Sprintf("https://maps.google.com/?q=%.5f,%.5f", msg.GetDegreesLatitude(), msg.GetDegreesLongitude())
}
name := msg.GetName()
if len(name) == 0 {
latChar := 'N'
if msg.GetDegreesLatitude() < 0 {
latChar = 'S'
}
longChar := 'E'
if msg.GetDegreesLongitude() < 0 {
longChar = 'W'
}
name = fmt.Sprintf("%.4f° %c %.4f° %c", math.Abs(msg.GetDegreesLatitude()), latChar, math.Abs(msg.GetDegreesLongitude()), longChar)
}
content := &event.MessageEventContent{
MsgType: event.MsgLocation,
Body: fmt.Sprintf("Location: %s\n%s\n%s", name, msg.GetAddress(), url),
Format: event.FormatHTML,
FormattedBody: fmt.Sprintf("Location: %s
%s", url, name, msg.GetAddress()),
GeoURI: fmt.Sprintf("geo:%.5f,%.5f", msg.GetDegreesLatitude(), msg.GetDegreesLongitude()),
}
if len(msg.GetJpegThumbnail()) > 0 {
thumbnailMime := http.DetectContentType(msg.GetJpegThumbnail())
uploadedThumbnail, _ := intent.UploadBytes(msg.GetJpegThumbnail(), thumbnailMime)
if uploadedThumbnail != nil {
cfg, _, _ := image.DecodeConfig(bytes.NewReader(msg.GetJpegThumbnail()))
content.Info = &event.FileInfo{
ThumbnailInfo: &event.FileInfo{
Size: len(msg.GetJpegThumbnail()),
Width: cfg.Width,
Height: cfg.Height,
MimeType: thumbnailMime,
},
ThumbnailURL: uploadedThumbnail.ContentURI.CUString(),
}
}
}
return &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: content,
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
}
}
const inviteMsg = `%s
This invitation to join "%s" expires at %s. Reply to this message with !wa accept to accept the invite.`
const inviteMetaField = "fi.mau.whatsapp.invite"
const escapedInviteMetaField = `fi\.mau\.whatsapp\.invite`
type InviteMeta struct {
JID types.JID `json:"jid"`
Code string `json:"code"`
Expiration int64 `json:"expiration,string"`
Inviter types.JID `json:"inviter"`
}
func (portal *Portal) convertGroupInviteMessage(intent *appservice.IntentAPI, info *types.MessageInfo, msg *waProto.GroupInviteMessage) *ConvertedMessage {
expiry := time.Unix(msg.GetInviteExpiration(), 0)
htmlMessage := fmt.Sprintf(inviteMsg, event.TextToHTML(msg.GetCaption()), msg.GetGroupName(), expiry)
content := &event.MessageEventContent{
MsgType: event.MsgText,
Body: format.HTMLToText(htmlMessage),
Format: event.FormatHTML,
FormattedBody: htmlMessage,
}
groupJID, err := types.ParseJID(msg.GetGroupJid())
if err != nil {
portal.log.Errorfln("Failed to parse invite group JID: %v", err)
}
extraAttrs := map[string]interface{}{
inviteMetaField: InviteMeta{
JID: groupJID,
Code: msg.GetInviteCode(),
Expiration: msg.GetInviteExpiration(),
Inviter: info.Sender.ToNonAD(),
},
}
return &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: content,
Extra: extraAttrs,
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
}
}
func (portal *Portal) convertContactMessage(intent *appservice.IntentAPI, msg *waProto.ContactMessage) *ConvertedMessage {
fileName := fmt.Sprintf("%s.vcf", msg.GetDisplayName())
data := []byte(msg.GetVcard())
mimeType := "text/vcard"
uploadMimeType, file := portal.encryptFileInPlace(data, mimeType)
uploadResp, err := intent.UploadBytesWithName(data, uploadMimeType, fileName)
if err != nil {
portal.log.Errorfln("Failed to upload vcard of %s: %v", msg.GetDisplayName(), err)
return nil
}
content := &event.MessageEventContent{
Body: fileName,
MsgType: event.MsgFile,
File: file,
Info: &event.FileInfo{
MimeType: mimeType,
Size: len(msg.GetVcard()),
},
}
if content.File != nil {
content.File.URL = uploadResp.ContentURI.CUString()
} else {
content.URL = uploadResp.ContentURI.CUString()
}
return &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: content,
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
}
}
func (portal *Portal) convertContactsArrayMessage(intent *appservice.IntentAPI, msg *waProto.ContactsArrayMessage) *ConvertedMessage {
name := msg.GetDisplayName()
if len(name) == 0 {
name = fmt.Sprintf("%d contacts", len(msg.GetContacts()))
}
contacts := make([]*event.MessageEventContent, 0, len(msg.GetContacts()))
for _, contact := range msg.GetContacts() {
converted := portal.convertContactMessage(intent, contact)
if converted != nil {
contacts = append(contacts, converted.Content)
}
}
return &ConvertedMessage{
Intent: intent,
Type: event.EventMessage,
Content: &event.MessageEventContent{
MsgType: event.MsgNotice,
Body: fmt.Sprintf("Sent %s", name),
},
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
MultiEvent: contacts,
}
}
func (portal *Portal) tryKickUser(userID id.UserID, intent *appservice.IntentAPI) error {
_, err := intent.KickUser(portal.MXID, &mautrix.ReqKickUser{UserID: userID})
if err != nil {
httpErr, ok := err.(mautrix.HTTPError)
if ok && httpErr.RespError != nil && httpErr.RespError.ErrCode == "M_FORBIDDEN" {
_, err = portal.MainIntent().KickUser(portal.MXID, &mautrix.ReqKickUser{UserID: userID})
}
}
return err
}
func (portal *Portal) removeUser(isSameUser bool, kicker *appservice.IntentAPI, target id.UserID, targetIntent *appservice.IntentAPI) {
if !isSameUser || targetIntent == nil {
err := portal.tryKickUser(target, kicker)
if err != nil {
portal.log.Warnfln("Failed to kick %s from %s: %v", target, portal.MXID, err)
if targetIntent != nil {
_, _ = targetIntent.LeaveRoom(portal.MXID)
}
}
} else {
_, err := targetIntent.LeaveRoom(portal.MXID)
if err != nil {
portal.log.Warnfln("Failed to leave portal as %s: %v", target, err)
_, _ = portal.MainIntent().KickUser(portal.MXID, &mautrix.ReqKickUser{UserID: target})
}
}
portal.CleanupIfEmpty()
}
func (portal *Portal) HandleWhatsAppKick(source *User, senderJID types.JID, jids []types.JID) {
sender := portal.bridge.GetPuppetByJID(senderJID)
senderIntent := sender.IntentFor(portal)
for _, jid := range jids {
//if source != nil && source.JID.User == jid.User {
// portal.log.Debugln("Ignoring self-kick by", source.MXID)
// continue
//}
puppet := portal.bridge.GetPuppetByJID(jid)
portal.removeUser(puppet.JID == sender.JID, senderIntent, puppet.MXID, puppet.DefaultIntent())
if !portal.IsBroadcastList() {
user := portal.bridge.GetUserByJID(jid)
if user != nil {
var customIntent *appservice.IntentAPI
if puppet.CustomMXID == user.MXID {
customIntent = puppet.CustomIntent()
}
portal.removeUser(puppet.JID == sender.JID, senderIntent, user.MXID, customIntent)
}
}
}
}
func (portal *Portal) HandleWhatsAppInvite(source *User, senderJID *types.JID, jids []types.JID) (evtID id.EventID) {
intent := portal.MainIntent()
if senderJID != nil && !senderJID.IsEmpty() {
sender := portal.bridge.GetPuppetByJID(*senderJID)
intent = sender.IntentFor(portal)
}
for _, jid := range jids {
puppet := portal.bridge.GetPuppetByJID(jid)
puppet.SyncContact(source, true, false, "handling whatsapp invite")
resp, err := intent.SendStateEvent(portal.MXID, event.StateMember, puppet.MXID.String(), &event.MemberEventContent{
Membership: event.MembershipInvite,
Displayname: puppet.Displayname,
AvatarURL: puppet.AvatarURL.CUString(),
})
if err != nil {
portal.log.Warnfln("Failed to invite %s as %s: %v", puppet.MXID, intent.UserID, err)
_ = portal.MainIntent().EnsureInvited(portal.MXID, puppet.MXID)
} else {
evtID = resp.EventID
}
err = puppet.DefaultIntent().EnsureJoined(portal.MXID)
if err != nil {
portal.log.Errorfln("Failed to ensure %s is joined: %v", puppet.MXID, err)
}
}
return
}
func (portal *Portal) HandleWhatsAppDeleteChat(user *User) {
matrixUsers, err := portal.GetMatrixUsers()
if err != nil {
portal.log.Errorln("Failed to get Matrix users to see if DeleteChat should be handled:", err)
return
}
if len(matrixUsers) > 1 {
portal.log.Infoln("Portal contains more than one Matrix user, so deleteChat will not be handled.")
return
} else if (len(matrixUsers) == 1 && matrixUsers[0] == user.MXID) || len(matrixUsers) < 1 {
portal.log.Debugln("User deleted chat and there are no other Matrix users using it, deleting portal...")
portal.Delete()
portal.Cleanup(false)
}
}
const failedMediaField = "fi.mau.whatsapp.failed_media"
type FailedMediaKeys struct {
Key []byte `json:"key"`
Length int `json:"length"`
Type whatsmeow.MediaType `json:"type"`
SHA256 []byte `json:"sha256"`
EncSHA256 []byte `json:"enc_sha256"`
}
type FailedMediaMeta struct {
Type event.Type `json:"type"`
Content *event.MessageEventContent `json:"content"`
ExtraContent map[string]interface{} `json:"extra_content,omitempty"`
Media FailedMediaKeys `json:"whatsapp_media"`
}
func shallowCopyMap(data map[string]interface{}) map[string]interface{} {
newMap := make(map[string]interface{}, len(data))
for key, value := range data {
newMap[key] = value
}
return newMap
}
func (portal *Portal) makeMediaBridgeFailureMessage(info *types.MessageInfo, bridgeErr error, converted *ConvertedMessage, keys *FailedMediaKeys, userFriendlyError string) *ConvertedMessage {
if errors.Is(bridgeErr, whatsmeow.ErrMediaDownloadFailedWith404) || errors.Is(bridgeErr, whatsmeow.ErrMediaDownloadFailedWith410) {
portal.log.Debugfln("Failed to bridge media for %s: %v", info.ID, bridgeErr)
} else {
portal.log.Errorfln("Failed to bridge media for %s: %v", info.ID, bridgeErr)
}
if keys != nil {
if portal.bridge.Config.Bridge.CaptionInMessage {
converted.MergeCaption()
}
meta := &FailedMediaMeta{
Type: converted.Type,
Content: converted.Content,
ExtraContent: shallowCopyMap(converted.Extra),
Media: *keys,
}
converted.Extra[failedMediaField] = meta
portal.mediaErrorCache[info.ID] = meta
}
converted.Type = event.EventMessage
body := userFriendlyError
if body == "" {
body = fmt.Sprintf("Failed to bridge media: %v", bridgeErr)
}
converted.Content = &event.MessageEventContent{
MsgType: event.MsgNotice,
Body: body,
}
return converted
}
func (portal *Portal) encryptFileInPlace(data []byte, mimeType string) (string, *event.EncryptedFileInfo) {
if !portal.Encrypted {
return mimeType, nil
}
file := &event.EncryptedFileInfo{
EncryptedFile: *attachment.NewEncryptedFile(),
URL: "",
}
file.EncryptInPlace(data)
return "application/octet-stream", file
}
type MediaMessage interface {
whatsmeow.DownloadableMessage
GetContextInfo() *waProto.ContextInfo
GetFileLength() uint64
GetMimetype() string
}
type MediaMessageWithThumbnail interface {
MediaMessage
GetJpegThumbnail() []byte
}
type MediaMessageWithCaption interface {
MediaMessage
GetCaption() string
}
type MediaMessageWithDimensions interface {
MediaMessage
GetHeight() uint32
GetWidth() uint32
}
type MediaMessageWithFileName interface {
MediaMessage
GetFileName() string
}
type MediaMessageWithDuration interface {
MediaMessage
GetSeconds() uint32
}
const WhatsAppStickerSize = 190
func (portal *Portal) convertMediaMessageContent(intent *appservice.IntentAPI, msg MediaMessage) *ConvertedMessage {
content := &event.MessageEventContent{
Info: &event.FileInfo{
MimeType: msg.GetMimetype(),
Size: int(msg.GetFileLength()),
},
}
extraContent := map[string]interface{}{}
messageWithDimensions, ok := msg.(MediaMessageWithDimensions)
if ok {
content.Info.Width = int(messageWithDimensions.GetWidth())
content.Info.Height = int(messageWithDimensions.GetHeight())
}
msgWithName, ok := msg.(MediaMessageWithFileName)
if ok && len(msgWithName.GetFileName()) > 0 {
content.Body = msgWithName.GetFileName()
} else {
mimeClass := strings.Split(msg.GetMimetype(), "/")[0]
switch mimeClass {
case "application":
content.Body = "file"
default:
content.Body = mimeClass
}
content.Body += util.ExtensionFromMimetype(msg.GetMimetype())
}
msgWithDuration, ok := msg.(MediaMessageWithDuration)
if ok {
content.Info.Duration = int(msgWithDuration.GetSeconds()) * 1000
}
videoMessage, ok := msg.(*waProto.VideoMessage)
var isGIF bool
if ok && videoMessage.GetGifPlayback() {
isGIF = true
extraContent["info"] = map[string]interface{}{
"fi.mau.loop": true,
"fi.mau.autoplay": true,
"fi.mau.hide_controls": true,
"fi.mau.no_audio": true,
}
}
messageWithThumbnail, ok := msg.(MediaMessageWithThumbnail)
if ok && messageWithThumbnail.GetJpegThumbnail() != nil && (portal.bridge.Config.Bridge.WhatsappThumbnail || isGIF) {
thumbnailData := messageWithThumbnail.GetJpegThumbnail()
thumbnailMime := http.DetectContentType(thumbnailData)
thumbnailCfg, _, _ := image.DecodeConfig(bytes.NewReader(thumbnailData))
thumbnailSize := len(thumbnailData)
thumbnailUploadMime, thumbnailFile := portal.encryptFileInPlace(thumbnailData, thumbnailMime)
uploadedThumbnail, err := intent.UploadBytes(thumbnailData, thumbnailUploadMime)
if err != nil {
portal.log.Warnfln("Failed to upload thumbnail: %v", err)
} else if uploadedThumbnail != nil {
if thumbnailFile != nil {
thumbnailFile.URL = uploadedThumbnail.ContentURI.CUString()
content.Info.ThumbnailFile = thumbnailFile
} else {
content.Info.ThumbnailURL = uploadedThumbnail.ContentURI.CUString()
}
content.Info.ThumbnailInfo = &event.FileInfo{
Size: thumbnailSize,
Width: thumbnailCfg.Width,
Height: thumbnailCfg.Height,
MimeType: thumbnailMime,
}
}
}
eventType := event.EventMessage
switch msg.(type) {
case *waProto.ImageMessage:
content.MsgType = event.MsgImage
case *waProto.StickerMessage:
eventType = event.EventSticker
if content.Info.Width > content.Info.Height {
content.Info.Height /= content.Info.Width / WhatsAppStickerSize
content.Info.Width = WhatsAppStickerSize
} else if content.Info.Width < content.Info.Height {
content.Info.Width /= content.Info.Height / WhatsAppStickerSize
content.Info.Height = WhatsAppStickerSize
} else {
content.Info.Width = WhatsAppStickerSize
content.Info.Height = WhatsAppStickerSize
}
case *waProto.VideoMessage:
content.MsgType = event.MsgVideo
case *waProto.AudioMessage:
content.MsgType = event.MsgAudio
case *waProto.DocumentMessage:
content.MsgType = event.MsgFile
default:
portal.log.Warnfln("Unexpected media type %T in convertMediaMessageContent", msg)
content.MsgType = event.MsgFile
}
audioMessage, ok := msg.(*waProto.AudioMessage)
if ok {
var waveform []int
if audioMessage.Waveform != nil {
waveform = make([]int, len(audioMessage.Waveform))
max := 0
for i, part := range audioMessage.Waveform {
waveform[i] = int(part)
if waveform[i] > max {
max = waveform[i]
}
}
multiplier := 0
if max > 0 {
multiplier = 1024 / max
}
if multiplier > 32 {
multiplier = 32
}
for i := range waveform {
waveform[i] *= multiplier
}
}
extraContent["org.matrix.msc1767.audio"] = map[string]interface{}{
"duration": int(audioMessage.GetSeconds()) * 1000,
"waveform": waveform,
}
if audioMessage.GetPtt() {
extraContent["org.matrix.msc3245.voice"] = map[string]interface{}{}
}
}
messageWithCaption, ok := msg.(MediaMessageWithCaption)
var captionContent *event.MessageEventContent
if ok && len(messageWithCaption.GetCaption()) > 0 {
captionContent = &event.MessageEventContent{
Body: messageWithCaption.GetCaption(),
MsgType: event.MsgNotice,
}
portal.bridge.Formatter.ParseWhatsApp(portal.MXID, captionContent, msg.GetContextInfo().GetMentionedJid(), false, false)
}
return &ConvertedMessage{
Intent: intent,
Type: eventType,
Content: content,
Caption: captionContent,
ReplyTo: GetReply(msg.GetContextInfo()),
ExpiresIn: msg.GetContextInfo().GetExpiration(),
Extra: extraContent,
}
}
func (portal *Portal) uploadMedia(intent *appservice.IntentAPI, data []byte, content *event.MessageEventContent) error {
uploadMimeType, file := portal.encryptFileInPlace(data, content.Info.MimeType)
req := mautrix.ReqUploadMedia{
ContentBytes: data,
ContentType: uploadMimeType,
}
var mxc id.ContentURI
if portal.bridge.Config.Homeserver.AsyncMedia {
uploaded, err := intent.UnstableUploadAsync(req)
if err != nil {
return err
}
mxc = uploaded.ContentURI
} else {
uploaded, err := intent.UploadMedia(req)
if err != nil {
return err
}
mxc = uploaded.ContentURI
}
if file != nil {
file.URL = mxc.CUString()
content.File = file
} else {
content.URL = mxc.CUString()
}
content.Info.Size = len(data)
if content.Info.Width == 0 && content.Info.Height == 0 && strings.HasPrefix(content.Info.MimeType, "image/") {
cfg, _, _ := image.DecodeConfig(bytes.NewReader(data))
content.Info.Width, content.Info.Height = cfg.Width, cfg.Height
}
return nil
}
func (portal *Portal) convertMediaMessage(intent *appservice.IntentAPI, source *User, info *types.MessageInfo, msg MediaMessage, typeName string, isBackfill bool) *ConvertedMessage {
converted := portal.convertMediaMessageContent(intent, msg)
if msg.GetFileLength() > uint64(portal.bridge.MediaConfig.UploadSize) {
return portal.makeMediaBridgeFailureMessage(info, errors.New("file is too large"), converted, nil, fmt.Sprintf("Large %s not bridged - please use WhatsApp app to view", typeName))
}
data, err := source.Client.Download(msg)
if errors.Is(err, whatsmeow.ErrMediaDownloadFailedWith404) || errors.Is(err, whatsmeow.ErrMediaDownloadFailedWith410) {
converted.Error = database.MsgErrMediaNotFound
converted.MediaKey = msg.GetMediaKey()
errorText := fmt.Sprintf("Old %s.", typeName)
if portal.bridge.Config.Bridge.HistorySync.MediaRequests.AutoRequestMedia && isBackfill {
errorText += " Media will be automatically requested from your phone later."
} else {
errorText += " React with the \u267b (recycle) emoji to request this media from your phone."
}
return portal.makeMediaBridgeFailureMessage(info, err, converted, &FailedMediaKeys{
Key: msg.GetMediaKey(),
Length: int(msg.GetFileLength()),
Type: whatsmeow.GetMediaType(msg),
SHA256: msg.GetFileSha256(),
EncSHA256: msg.GetFileEncSha256(),
}, errorText)
} else if errors.Is(err, whatsmeow.ErrNoURLPresent) {
portal.log.Debugfln("No URL present error for media message %s, ignoring...", info.ID)
return nil
} else if errors.Is(err, whatsmeow.ErrFileLengthMismatch) || errors.Is(err, whatsmeow.ErrInvalidMediaSHA256) {
portal.log.Warnfln("Mismatching media checksums in %s: %v. Ignoring because WhatsApp seems to ignore them too", info.ID, err)
} else if err != nil {
return portal.makeMediaBridgeFailureMessage(info, err, converted, nil, "")
}
err = portal.uploadMedia(intent, data, converted.Content)
if err != nil {
if errors.Is(err, mautrix.MTooLarge) {
return portal.makeMediaBridgeFailureMessage(info, errors.New("homeserver rejected too large file"), converted, nil, "")
} else if httpErr, ok := err.(mautrix.HTTPError); ok && httpErr.IsStatus(413) {
return portal.makeMediaBridgeFailureMessage(info, errors.New("proxy rejected too large file"), converted, nil, "")
} else {
return portal.makeMediaBridgeFailureMessage(info, fmt.Errorf("failed to upload media: %w", err), converted, nil, "")
}
}
return converted
}
func (portal *Portal) fetchMediaRetryEvent(msg *database.Message) (*FailedMediaMeta, error) {
errorMeta, ok := portal.mediaErrorCache[msg.JID]
if ok {
return errorMeta, nil
}
evt, err := portal.MainIntent().GetEvent(portal.MXID, msg.MXID)
if err != nil {
return nil, fmt.Errorf("failed to fetch event %s: %w", msg.MXID, err)
}
if evt.Type == event.EventEncrypted {
err = evt.Content.ParseRaw(evt.Type)
if err != nil {
return nil, fmt.Errorf("failed to parse encrypted content in %s: %w", msg.MXID, err)
}
evt, err = portal.bridge.Crypto.Decrypt(evt)
if err != nil {
return nil, fmt.Errorf("failed to decrypt event %s: %w", msg.MXID, err)
}
}
errorMetaResult := gjson.GetBytes(evt.Content.VeryRaw, strings.ReplaceAll(failedMediaField, ".", "\\."))
if !errorMetaResult.Exists() || !errorMetaResult.IsObject() {
return nil, fmt.Errorf("didn't find failed media metadata in %s", msg.MXID)
}
var errorMetaBytes []byte
if errorMetaResult.Index > 0 {
errorMetaBytes = evt.Content.VeryRaw[errorMetaResult.Index : errorMetaResult.Index+len(errorMetaResult.Raw)]
} else {
errorMetaBytes = []byte(errorMetaResult.Raw)
}
err = json.Unmarshal(errorMetaBytes, &errorMeta)
if err != nil {
return nil, fmt.Errorf("failed to unmarshal failed media metadata in %s: %w", msg.MXID, err)
}
return errorMeta, nil
}
func (portal *Portal) sendMediaRetryFailureEdit(intent *appservice.IntentAPI, msg *database.Message, err error) {
content := event.MessageEventContent{
MsgType: event.MsgNotice,
Body: fmt.Sprintf("Failed to bridge media after re-requesting it from your phone: %v", err),
}
contentCopy := content
content.NewContent = &contentCopy
content.RelatesTo = &event.RelatesTo{
EventID: msg.MXID,
Type: event.RelReplace,
}
resp, sendErr := portal.sendMessage(intent, event.EventMessage, &content, nil, time.Now().UnixMilli())
if sendErr != nil {
portal.log.Warnfln("Failed to edit %s after retry failure for %s: %v", msg.MXID, msg.JID, sendErr)
} else {
portal.log.Debugfln("Successfully edited %s -> %s after retry failure for %s", msg.MXID, resp.EventID, msg.JID)
}
}
func (portal *Portal) handleMediaRetry(retry *events.MediaRetry, source *User) {
msg := portal.bridge.DB.Message.GetByJID(portal.Key, retry.MessageID)
if msg == nil {
portal.log.Warnfln("Dropping media retry notification for unknown message %s", retry.MessageID)
return
} else if msg.Error != database.MsgErrMediaNotFound {
portal.log.Warnfln("Dropping media retry notification for non-errored message %s / %s", retry.MessageID, msg.MXID)
return
}
meta, err := portal.fetchMediaRetryEvent(msg)
if err != nil {
portal.log.Warnfln("Can't handle media retry notification for %s: %v", retry.MessageID, err)
return
}
var puppet *Puppet
if retry.FromMe {
puppet = portal.bridge.GetPuppetByJID(source.JID)
} else if retry.ChatID.Server == types.DefaultUserServer {
puppet = portal.bridge.GetPuppetByJID(retry.ChatID)
} else {
puppet = portal.bridge.GetPuppetByJID(retry.SenderID)
}
intent := puppet.IntentFor(portal)
retryData, err := whatsmeow.DecryptMediaRetryNotification(retry, meta.Media.Key)
if err != nil {
portal.log.Warnfln("Failed to handle media retry notification for %s: %v", retry.MessageID, err)
portal.sendMediaRetryFailureEdit(intent, msg, err)
return
} else if retryData.GetResult() != waProto.MediaRetryNotification_SUCCESS {
errorName := waProto.MediaRetryNotification_ResultType_name[int32(retryData.GetResult())]
if retryData.GetDirectPath() == "" {
portal.log.Warnfln("Got error response in media retry notification for %s: %s", retry.MessageID, errorName)
portal.log.Debugfln("Error response contents: %+v", retryData)
if retryData.GetResult() == waProto.MediaRetryNotification_NOT_FOUND {
portal.sendMediaRetryFailureEdit(intent, msg, whatsmeow.ErrMediaNotAvailableOnPhone)
} else {
portal.sendMediaRetryFailureEdit(intent, msg, fmt.Errorf("phone sent error response: %s", errorName))
}
return
} else {
portal.log.Debugfln("Got error response %s in media retry notification for %s, but response also contains a new download URL - trying to download", retry.MessageID, errorName)
}
}
data, err := source.Client.DownloadMediaWithPath(retryData.GetDirectPath(), meta.Media.EncSHA256, meta.Media.SHA256, meta.Media.Key, meta.Media.Length, meta.Media.Type, "")
if err != nil {
portal.log.Warnfln("Failed to download media in %s after retry notification: %v", retry.MessageID, err)
portal.sendMediaRetryFailureEdit(intent, msg, err)
return
}
err = portal.uploadMedia(intent, data, meta.Content)
if err != nil {
portal.log.Warnfln("Failed to re-upload media for %s after retry notification: %v", retry.MessageID, err)
portal.sendMediaRetryFailureEdit(intent, msg, fmt.Errorf("re-uploading media failed: %v", err))
return
}
replaceContent := &event.MessageEventContent{
MsgType: meta.Content.MsgType,
Body: "* " + meta.Content.Body,
NewContent: meta.Content,
RelatesTo: &event.RelatesTo{
EventID: msg.MXID,
Type: event.RelReplace,
},
}
// Move the extra content into m.new_content too
meta.ExtraContent = map[string]interface{}{
"m.new_content": shallowCopyMap(meta.ExtraContent),
}
resp, err := portal.sendMessage(intent, meta.Type, replaceContent, meta.ExtraContent, time.Now().UnixMilli())
if err != nil {
portal.log.Warnfln("Failed to edit %s after retry notification for %s: %v", msg.MXID, retry.MessageID, err)
return
}
portal.log.Debugfln("Successfully edited %s -> %s after retry notification for %s", msg.MXID, resp.EventID, retry.MessageID)
msg.UpdateMXID(nil, resp.EventID, database.MsgNormal, database.MsgNoError)
}
func (portal *Portal) requestMediaRetry(user *User, eventID id.EventID, mediaKey []byte) (bool, error) {
msg := portal.bridge.DB.Message.GetByMXID(eventID)
if msg == nil {
err := errors.New(fmt.Sprintf("%s requested a media retry for unknown event %s", user.MXID, eventID))
portal.log.Debugfln(err.Error())
return false, err
} else if msg.Error != database.MsgErrMediaNotFound {
err := errors.New(fmt.Sprintf("%s requested a media retry for non-errored event %s", user.MXID, eventID))
portal.log.Debugfln(err.Error())
return false, err
}
// If the media key is not provided, grab it from the event in Matrix
if mediaKey == nil {
evt, err := portal.fetchMediaRetryEvent(msg)
if err != nil {
portal.log.Warnfln("Can't send media retry request for %s: %v", msg.JID, err)
return true, nil
}
mediaKey = evt.Media.Key
}
err := user.Client.SendMediaRetryReceipt(&types.MessageInfo{
ID: msg.JID,
MessageSource: types.MessageSource{
IsFromMe: msg.Sender.User == user.JID.User,
IsGroup: !portal.IsPrivateChat(),
Sender: msg.Sender,
Chat: portal.Key.JID,
},
}, mediaKey)
if err != nil {
portal.log.Warnfln("Failed to send media retry request for %s: %v", msg.JID, err)
} else {
portal.log.Debugfln("Sent media retry request for %s", msg.JID)
}
return true, err
}
const thumbnailMaxSize = 72
const thumbnailMinSize = 24
func createThumbnailAndGetSize(source []byte, pngThumbnail bool) ([]byte, int, int, error) {
src, _, err := image.Decode(bytes.NewReader(source))
if err != nil {
return nil, 0, 0, fmt.Errorf("failed to decode thumbnail: %w", err)
}
imageBounds := src.Bounds()
width, height := imageBounds.Max.X, imageBounds.Max.Y
var img image.Image
if width <= thumbnailMaxSize && height <= thumbnailMaxSize {
// No need to resize
img = src
} else {
if width == height {
width = thumbnailMaxSize
height = thumbnailMaxSize
} else if width < height {
width /= height / thumbnailMaxSize
height = thumbnailMaxSize
} else {
height /= width / thumbnailMaxSize
width = thumbnailMaxSize
}
if width < thumbnailMinSize {
width = thumbnailMinSize
}
if height < thumbnailMinSize {
height = thumbnailMinSize
}
dst := image.NewRGBA(image.Rect(0, 0, width, height))
draw.NearestNeighbor.Scale(dst, dst.Rect, src, src.Bounds(), draw.Over, nil)
img = dst
}
var buf bytes.Buffer
if pngThumbnail {
err = png.Encode(&buf, img)
} else {
err = jpeg.Encode(&buf, img, &jpeg.Options{Quality: jpeg.DefaultQuality})
}
if err != nil {
return nil, width, height, fmt.Errorf("failed to re-encode thumbnail: %w", err)
}
return buf.Bytes(), width, height, nil
}
func createThumbnail(source []byte, png bool) ([]byte, error) {
data, _, _, err := createThumbnailAndGetSize(source, png)
return data, err
}
func (portal *Portal) downloadThumbnail(ctx context.Context, original []byte, thumbnailURL id.ContentURIString, eventID id.EventID, png bool) ([]byte, error) {
if len(thumbnailURL) == 0 {
// just fall back to making thumbnail of original
} else if mxc, err := thumbnailURL.Parse(); err != nil {
portal.log.Warnfln("Malformed thumbnail URL in %s: %v (falling back to generating thumbnail from source)", eventID, err)
} else if thumbnail, err := portal.MainIntent().DownloadBytesContext(ctx, mxc); err != nil {
portal.log.Warnfln("Failed to download thumbnail in %s: %v (falling back to generating thumbnail from source)", eventID, err)
} else {
return createThumbnail(thumbnail, png)
}
return createThumbnail(original, png)
}
func (portal *Portal) convertWebPtoPNG(webpImage []byte) ([]byte, error) {
webpDecoded, err := webp.Decode(bytes.NewReader(webpImage))
if err != nil {
return nil, fmt.Errorf("failed to decode webp image: %w", err)
}
var pngBuffer bytes.Buffer
if err = png.Encode(&pngBuffer, webpDecoded); err != nil {
return nil, fmt.Errorf("failed to encode png image: %w", err)
}
return pngBuffer.Bytes(), nil
}
type PaddedImage struct {
image.Image
Size int
OffsetX int
OffsetY int
}
func (img *PaddedImage) Bounds() image.Rectangle {
return image.Rect(0, 0, img.Size, img.Size)
}
func (img *PaddedImage) At(x, y int) color.Color {
return img.Image.At(x+img.OffsetX, y+img.OffsetY)
}
func (portal *Portal) convertToWebP(img []byte) ([]byte, error) {
decodedImg, _, err := image.Decode(bytes.NewReader(img))
if err != nil {
return img, fmt.Errorf("failed to decode image: %w", err)
}
bounds := decodedImg.Bounds()
width, height := bounds.Dx(), bounds.Dy()
if width != height {
paddedImg := &PaddedImage{
Image: decodedImg,
OffsetX: bounds.Min.Y,
OffsetY: bounds.Min.X,
}
if width > height {
paddedImg.Size = width
paddedImg.OffsetY -= (paddedImg.Size - height) / 2
} else {
paddedImg.Size = height
paddedImg.OffsetX -= (paddedImg.Size - width) / 2
}
decodedImg = paddedImg
}
var webpBuffer bytes.Buffer
if err = webp.Encode(&webpBuffer, decodedImg, nil); err != nil {
return img, fmt.Errorf("failed to encode webp image: %w", err)
}
return webpBuffer.Bytes(), nil
}
func (portal *Portal) preprocessMatrixMedia(ctx context.Context, sender *User, relaybotFormatted bool, content *event.MessageEventContent, eventID id.EventID, mediaType whatsmeow.MediaType) (*MediaUpload, error) {
fileName := content.Body
var caption string
var mentionedJIDs []string
var hasHTMLCaption bool
isSticker := string(content.MsgType) == event.EventSticker.Type
if content.FileName != "" && content.Body != content.FileName {
fileName = content.FileName
caption = content.Body
hasHTMLCaption = content.Format == event.FormatHTML
}
if relaybotFormatted || hasHTMLCaption {
caption, mentionedJIDs = portal.bridge.Formatter.ParseMatrix(content.FormattedBody)
}
var file *event.EncryptedFileInfo
rawMXC := content.URL
if content.File != nil {
file = content.File
rawMXC = file.URL
}
mxc, err := rawMXC.Parse()
if err != nil {
return nil, err
}
data, err := portal.MainIntent().DownloadBytesContext(ctx, mxc)
if err != nil {
return nil, util.NewDualError(errMediaDownloadFailed, err)
}
if file != nil {
err = file.DecryptInPlace(data)
if err != nil {
return nil, util.NewDualError(errMediaDecryptFailed, err)
}
}
mimeType := content.GetInfo().MimeType
var convertErr error
// Allowed mime types from https://developers.facebook.com/docs/whatsapp/on-premises/reference/media
switch {
case isSticker:
if mimeType != "image/webp" || content.Info.Width != content.Info.Height {
data, convertErr = portal.convertToWebP(data)
content.Info.MimeType = "image/webp"
}
case mediaType == whatsmeow.MediaVideo:
switch mimeType {
case "video/mp4", "video/3gpp":
// Allowed
case "image/gif":
data, convertErr = ffmpeg.ConvertBytes(ctx, data, ".mp4", []string{"-f", "gif"}, []string{
"-pix_fmt", "yuv420p", "-c:v", "libx264", "-movflags", "+faststart",
"-filter:v", "crop='floor(in_w/2)*2:floor(in_h/2)*2'",
}, mimeType)
content.Info.MimeType = "video/mp4"
case "video/webm":
data, convertErr = ffmpeg.ConvertBytes(ctx, data, ".mp4", []string{"-f", "webm"}, []string{
"-pix_fmt", "yuv420p", "-c:v", "libx264",
}, mimeType)
content.Info.MimeType = "video/mp4"
default:
return nil, fmt.Errorf("%w %q in video message", errMediaUnsupportedType, mimeType)
}
case mediaType == whatsmeow.MediaImage:
switch mimeType {
case "image/jpeg", "image/png":
// Allowed
case "image/webp":
data, convertErr = portal.convertWebPtoPNG(data)
content.Info.MimeType = "image/png"
default:
return nil, fmt.Errorf("%w %q in image message", errMediaUnsupportedType, mimeType)
}
case mediaType == whatsmeow.MediaAudio:
switch mimeType {
case "audio/aac", "audio/mp4", "audio/amr", "audio/mpeg", "audio/ogg; codecs=opus":
// Allowed
case "audio/ogg":
// Hopefully it's opus already
content.Info.MimeType = "audio/ogg; codecs=opus"
default:
return nil, fmt.Errorf("%w %q in audio message", errMediaUnsupportedType, mimeType)
}
case mediaType == whatsmeow.MediaDocument:
// Everything is allowed
}
if convertErr != nil {
if content.Info.MimeType != mimeType || data == nil {
return nil, util.NewDualError(fmt.Errorf("%w (%s to %s)", errMediaConvertFailed, mimeType, content.Info.MimeType), convertErr)
} else {
// If the mime type didn't change and the errored conversion function returned the original data, just log a warning and continue
portal.log.Warnfln("Failed to re-encode %s media: %v, continuing with original file", mimeType, convertErr)
}
}
uploadResp, err := sender.Client.Upload(ctx, data, mediaType)
if err != nil {
return nil, util.NewDualError(errMediaWhatsAppUploadFailed, err)
}
// Audio doesn't have thumbnails
var thumbnail []byte
if mediaType != whatsmeow.MediaAudio {
thumbnail, err = portal.downloadThumbnail(ctx, data, content.GetInfo().ThumbnailURL, eventID, isSticker)
// Ignore format errors for non-image files, we don't care about those thumbnails
if err != nil && (!errors.Is(err, image.ErrFormat) || mediaType == whatsmeow.MediaImage) {
portal.log.Warnfln("Failed to generate thumbnail for %s: %v", eventID, err)
}
}
return &MediaUpload{
UploadResponse: uploadResp,
FileName: fileName,
Caption: caption,
MentionedJIDs: mentionedJIDs,
Thumbnail: thumbnail,
FileLength: len(data),
}, nil
}
type MediaUpload struct {
whatsmeow.UploadResponse
Caption string
FileName string
MentionedJIDs []string
Thumbnail []byte
FileLength int
}
func (portal *Portal) addRelaybotFormat(sender *User, content *event.MessageEventContent) bool {
member := portal.MainIntent().Member(portal.MXID, sender.MXID)
if member == nil {
member = &event.MemberEventContent{}
}
content.EnsureHasHTML()
data, err := portal.bridge.Config.Bridge.Relay.FormatMessage(content, sender.MXID, *member)
if err != nil {
portal.log.Errorln("Failed to apply relaybot format:", err)
}
content.FormattedBody = data
return true
}
func addCodecToMime(mimeType, codec string) string {
mediaType, params, err := mime.ParseMediaType(mimeType)
if err != nil {
return mimeType
}
if _, ok := params["codecs"]; !ok {
params["codecs"] = codec
}
return mime.FormatMediaType(mediaType, params)
}
func parseGeoURI(uri string) (lat, long float64, err error) {
if !strings.HasPrefix(uri, "geo:") {
err = fmt.Errorf("uri doesn't have geo: prefix")
return
}
// Remove geo: prefix and anything after ;
coordinates := strings.Split(strings.TrimPrefix(uri, "geo:"), ";")[0]
if splitCoordinates := strings.Split(coordinates, ","); len(splitCoordinates) != 2 {
err = fmt.Errorf("didn't find exactly two numbers separated by a comma")
} else if lat, err = strconv.ParseFloat(splitCoordinates[0], 64); err != nil {
err = fmt.Errorf("latitude is not a number: %w", err)
} else if long, err = strconv.ParseFloat(splitCoordinates[1], 64); err != nil {
err = fmt.Errorf("longitude is not a number: %w", err)
}
return
}
func getUnstableWaveform(content map[string]interface{}) []byte {
audioInfo, ok := content["org.matrix.msc1767.audio"].(map[string]interface{})
if !ok {
return nil
}
waveform, ok := audioInfo["waveform"].([]interface{})
if !ok {
return nil
}
output := make([]byte, len(waveform))
var val float64
for i, part := range waveform {
val, ok = part.(float64)
if ok {
output[i] = byte(val / 4)
}
}
return output
}
func (portal *Portal) convertMatrixMessage(ctx context.Context, sender *User, evt *event.Event) (*waProto.Message, *User, error) {
content, ok := evt.Content.Parsed.(*event.MessageEventContent)
if !ok {
return nil, sender, fmt.Errorf("%w %T", errUnexpectedParsedContentType, evt.Content.Parsed)
}
var editRootMsg *database.Message
if editEventID := content.RelatesTo.GetReplaceID(); editEventID != "" && portal.bridge.Config.Bridge.SendWhatsAppEdits {
editRootMsg = portal.bridge.DB.Message.GetByMXID(editEventID)
if editRootMsg == nil || editRootMsg.Type != database.MsgNormal || editRootMsg.IsFakeJID() || editRootMsg.Sender.User != sender.JID.User {
return nil, sender, fmt.Errorf("edit rejected") // TODO more specific error message
}
if content.NewContent != nil {
content = content.NewContent
}
}
msg := &waProto.Message{}
var ctxInfo waProto.ContextInfo
replyToID := content.GetReplyTo()
if len(replyToID) > 0 {
replyToMsg := portal.bridge.DB.Message.GetByMXID(replyToID)
if replyToMsg != nil && !replyToMsg.IsFakeJID() && replyToMsg.Type == database.MsgNormal {
ctxInfo.StanzaId = &replyToMsg.JID
ctxInfo.Participant = proto.String(replyToMsg.Sender.ToNonAD().String())
// Using blank content here seems to work fine on all official WhatsApp apps.
//
// We could probably invent a slightly more accurate version of the quoted message
// by fetching the Matrix event and converting it to the WhatsApp format, but that's
// a lot of work and this works fine.
ctxInfo.QuotedMessage = &waProto.Message{Conversation: proto.String("")}
}
}
if portal.ExpirationTime != 0 {
ctxInfo.Expiration = proto.Uint32(portal.ExpirationTime)
}
relaybotFormatted := false
if !sender.IsLoggedIn() || (portal.IsPrivateChat() && sender.JID.User != portal.Key.Receiver.User) {
if !portal.HasRelaybot() {
return nil, sender, errUserNotLoggedIn
}
relaybotFormatted = portal.addRelaybotFormat(sender, content)
sender = portal.GetRelayUser()
}
if evt.Type == event.EventSticker {
if relaybotFormatted {
// Stickers can't have captions, so force relaybot stickers to be images
content.MsgType = event.MsgImage
} else {
content.MsgType = event.MessageType(event.EventSticker.Type)
}
}
if content.MsgType == event.MsgImage && content.GetInfo().MimeType == "image/gif" {
content.MsgType = event.MsgVideo
}
switch content.MsgType {
case event.MsgText, event.MsgEmote, event.MsgNotice:
text := content.Body
if content.MsgType == event.MsgNotice && !portal.bridge.Config.Bridge.BridgeNotices {
return nil, sender, errMNoticeDisabled
}
if content.Format == event.FormatHTML {
text, ctxInfo.MentionedJid = portal.bridge.Formatter.ParseMatrix(content.FormattedBody)
}
if content.MsgType == event.MsgEmote && !relaybotFormatted {
text = "/me " + text
}
msg.ExtendedTextMessage = &waProto.ExtendedTextMessage{
Text: &text,
ContextInfo: &ctxInfo,
}
hasPreview := portal.convertURLPreviewToWhatsApp(ctx, sender, evt, msg.ExtendedTextMessage)
if ctx.Err() != nil {
return nil, nil, ctx.Err()
}
if ctxInfo.StanzaId == nil && ctxInfo.MentionedJid == nil && ctxInfo.Expiration == nil && !hasPreview {
// No need for extended message
msg.ExtendedTextMessage = nil
msg.Conversation = &text
}
case event.MsgImage:
media, err := portal.preprocessMatrixMedia(ctx, sender, relaybotFormatted, content, evt.ID, whatsmeow.MediaImage)
if media == nil {
return nil, sender, err
}
ctxInfo.MentionedJid = media.MentionedJIDs
msg.ImageMessage = &waProto.ImageMessage{
ContextInfo: &ctxInfo,
Caption: &media.Caption,
JpegThumbnail: media.Thumbnail,
Url: &media.URL,
MediaKey: media.MediaKey,
Mimetype: &content.GetInfo().MimeType,
FileEncSha256: media.FileEncSHA256,
FileSha256: media.FileSHA256,
FileLength: proto.Uint64(uint64(media.FileLength)),
}
case event.MessageType(event.EventSticker.Type):
media, err := portal.preprocessMatrixMedia(ctx, sender, relaybotFormatted, content, evt.ID, whatsmeow.MediaImage)
if media == nil {
return nil, sender, err
}
ctxInfo.MentionedJid = media.MentionedJIDs
msg.StickerMessage = &waProto.StickerMessage{
ContextInfo: &ctxInfo,
PngThumbnail: media.Thumbnail,
Url: &media.URL,
MediaKey: media.MediaKey,
Mimetype: &content.GetInfo().MimeType,
FileEncSha256: media.FileEncSHA256,
FileSha256: media.FileSHA256,
FileLength: proto.Uint64(uint64(media.FileLength)),
}
case event.MsgVideo:
gifPlayback := content.GetInfo().MimeType == "image/gif"
media, err := portal.preprocessMatrixMedia(ctx, sender, relaybotFormatted, content, evt.ID, whatsmeow.MediaVideo)
if media == nil {
return nil, sender, err
}
duration := uint32(content.GetInfo().Duration / 1000)
ctxInfo.MentionedJid = media.MentionedJIDs
msg.VideoMessage = &waProto.VideoMessage{
ContextInfo: &ctxInfo,
Caption: &media.Caption,
JpegThumbnail: media.Thumbnail,
Url: &media.URL,
MediaKey: media.MediaKey,
Mimetype: &content.GetInfo().MimeType,
GifPlayback: &gifPlayback,
Seconds: &duration,
FileEncSha256: media.FileEncSHA256,
FileSha256: media.FileSHA256,
FileLength: proto.Uint64(uint64(media.FileLength)),
}
case event.MsgAudio:
media, err := portal.preprocessMatrixMedia(ctx, sender, relaybotFormatted, content, evt.ID, whatsmeow.MediaAudio)
if media == nil {
return nil, sender, err
}
duration := uint32(content.GetInfo().Duration / 1000)
msg.AudioMessage = &waProto.AudioMessage{
ContextInfo: &ctxInfo,
Url: &media.URL,
MediaKey: media.MediaKey,
Mimetype: &content.GetInfo().MimeType,
Seconds: &duration,
FileEncSha256: media.FileEncSHA256,
FileSha256: media.FileSHA256,
FileLength: proto.Uint64(uint64(media.FileLength)),
}
_, isMSC3245Voice := evt.Content.Raw["org.matrix.msc3245.voice"]
if isMSC3245Voice {
msg.AudioMessage.Waveform = getUnstableWaveform(evt.Content.Raw)
msg.AudioMessage.Ptt = proto.Bool(true)
// hacky hack to add the codecs param that whatsapp seems to require
msg.AudioMessage.Mimetype = proto.String(addCodecToMime(content.GetInfo().MimeType, "opus"))
}
case event.MsgFile:
media, err := portal.preprocessMatrixMedia(ctx, sender, relaybotFormatted, content, evt.ID, whatsmeow.MediaDocument)
if media == nil {
return nil, sender, err
}
msg.DocumentMessage = &waProto.DocumentMessage{
ContextInfo: &ctxInfo,
Caption: &media.Caption,
JpegThumbnail: media.Thumbnail,
Url: &media.URL,
Title: &media.FileName,
FileName: &media.FileName,
MediaKey: media.MediaKey,
Mimetype: &content.GetInfo().MimeType,
FileEncSha256: media.FileEncSHA256,
FileSha256: media.FileSHA256,
FileLength: proto.Uint64(uint64(media.FileLength)),
}
if media.Caption != "" {
msg.DocumentWithCaptionMessage = &waProto.FutureProofMessage{
Message: &waProto.Message{
DocumentMessage: msg.DocumentMessage,
},
}
msg.DocumentMessage = nil
}
case event.MsgLocation:
lat, long, err := parseGeoURI(content.GeoURI)
if err != nil {
return nil, sender, fmt.Errorf("%w: %v", errInvalidGeoURI, err)
}
msg.LocationMessage = &waProto.LocationMessage{
DegreesLatitude: &lat,
DegreesLongitude: &long,
Comment: &content.Body,
ContextInfo: &ctxInfo,
}
default:
return nil, sender, fmt.Errorf("%w %q", errUnknownMsgType, content.MsgType)
}
if editRootMsg != nil {
msg = &waProto.Message{
EditedMessage: &waProto.FutureProofMessage{
Message: &waProto.Message{
ProtocolMessage: &waProto.ProtocolMessage{
Key: &waProto.MessageKey{
FromMe: proto.Bool(true),
Id: proto.String(editRootMsg.JID),
RemoteJid: proto.String(portal.Key.JID.String()),
},
Type: waProto.ProtocolMessage_MESSAGE_EDIT.Enum(),
EditedMessage: msg,
TimestampMs: proto.Int64(evt.Timestamp),
},
},
},
}
}
return msg, sender, nil
}
func (portal *Portal) generateMessageInfo(sender *User) *types.MessageInfo {
return &types.MessageInfo{
ID: whatsmeow.GenerateMessageID(),
Timestamp: time.Now(),
MessageSource: types.MessageSource{
Sender: sender.JID,
Chat: portal.Key.JID,
IsFromMe: true,
IsGroup: portal.Key.JID.Server == types.GroupServer || portal.Key.JID.Server == types.BroadcastServer,
},
}
}
func (portal *Portal) HandleMatrixMessage(sender *User, evt *event.Event, timings messageTimings) {
start := time.Now()
ms := metricSender{portal: portal, timings: &timings}
if err := portal.canBridgeFrom(sender, true); err != nil {
go ms.sendMessageMetrics(evt, err, "Ignoring", true)
return
} else if portal.Key.JID == types.StatusBroadcastJID && portal.bridge.Config.Bridge.DisableStatusBroadcastSend {
go ms.sendMessageMetrics(evt, errBroadcastSendDisabled, "Ignoring", true)
return
}
messageAge := timings.totalReceive
origEvtID := evt.ID
var dbMsg *database.Message
if retryMeta := evt.Content.AsMessage().MessageSendRetry; retryMeta != nil {
origEvtID = retryMeta.OriginalEventID
dbMsg = portal.bridge.DB.Message.GetByMXID(origEvtID)
if dbMsg != nil && dbMsg.Sent {
portal.log.Debugfln("Ignoring retry request %s (#%d, age: %s) for %s/%s from %s as message was already sent", evt.ID, retryMeta.RetryCount, messageAge, origEvtID, dbMsg.JID, evt.Sender)
go ms.sendMessageMetrics(evt, nil, "", true)
return
} else if dbMsg != nil {
portal.log.Debugfln("Got retry request %s (#%d, age: %s) for %s/%s from %s", evt.ID, retryMeta.RetryCount, messageAge, origEvtID, dbMsg.JID, evt.Sender)
} else {
portal.log.Debugfln("Got retry request %s (#%d, age: %s) for %s from %s (original message not known)", evt.ID, retryMeta.RetryCount, messageAge, origEvtID, evt.Sender)
}
} else {
portal.log.Debugfln("Received message %s from %s (age: %s)", evt.ID, evt.Sender, messageAge)
}
errorAfter := portal.bridge.Config.Bridge.MessageHandlingTimeout.ErrorAfter
deadline := portal.bridge.Config.Bridge.MessageHandlingTimeout.Deadline
isScheduled, _ := evt.Content.Raw["com.beeper.scheduled"].(bool)
if isScheduled {
portal.log.Debugfln("%s is a scheduled message, extending handling timeouts", evt.ID)
errorAfter *= 10
deadline *= 10
}
if errorAfter > 0 {
remainingTime := errorAfter - messageAge
if remainingTime < 0 {
go ms.sendMessageMetrics(evt, errTimeoutBeforeHandling, "Timeout handling", true)
return
} else if remainingTime < 1*time.Second {
portal.log.Warnfln("Message %s was delayed before reaching the bridge, only have %s (of %s timeout) until delay warning", evt.ID, remainingTime, errorAfter)
}
go func() {
time.Sleep(remainingTime)
ms.sendMessageMetrics(evt, errMessageTakingLong, "Timeout handling", false)
}()
}
ctx := context.Background()
if deadline > 0 {
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(ctx, deadline)
defer cancel()
}
timings.preproc = time.Since(start)
start = time.Now()
msg, sender, err := portal.convertMatrixMessage(ctx, sender, evt)
timings.convert = time.Since(start)
if msg == nil {
go ms.sendMessageMetrics(evt, err, "Error converting", true)
return
}
dbMsgType := database.MsgNormal
if msg.EditedMessage == nil {
portal.MarkDisappearing(nil, origEvtID, portal.ExpirationTime, true)
} else {
dbMsgType = database.MsgEdit
}
info := portal.generateMessageInfo(sender)
if dbMsg == nil {
dbMsg = portal.markHandled(nil, nil, info, evt.ID, false, true, dbMsgType, database.MsgNoError)
} else {
info.ID = dbMsg.JID
}
portal.log.Debugln("Sending event", evt.ID, "to WhatsApp", info.ID)
start = time.Now()
resp, err := sender.Client.SendMessage(ctx, portal.Key.JID, info.ID, msg)
timings.totalSend = time.Since(start)
timings.whatsmeow = resp.DebugTimings
go ms.sendMessageMetrics(evt, err, "Error sending", true)
if err == nil {
dbMsg.MarkSent(resp.Timestamp)
}
}
func (portal *Portal) HandleMatrixReaction(sender *User, evt *event.Event) {
if err := portal.canBridgeFrom(sender, false); err != nil {
go portal.sendMessageMetrics(evt, err, "Ignoring", nil)
return
} else if portal.Key.JID.Server == types.BroadcastServer {
// TODO implement this, probably by only sending the reaction to the sender of the status message?
// (whatsapp hasn't published the feature yet)
go portal.sendMessageMetrics(evt, errBroadcastReactionNotSupported, "Ignoring", nil)
return
}
content, ok := evt.Content.Parsed.(*event.ReactionEventContent)
if ok && strings.Contains(content.RelatesTo.Key, "retry") || strings.HasPrefix(content.RelatesTo.Key, "\u267b") { // ♻️
if retryRequested, _ := portal.requestMediaRetry(sender, content.RelatesTo.EventID, nil); retryRequested {
_, _ = portal.MainIntent().RedactEvent(portal.MXID, evt.ID, mautrix.ReqRedact{
Reason: "requested media from phone",
})
// Errored media, don't try to send as reaction
return
}
}
portal.log.Debugfln("Received reaction event %s from %s", evt.ID, evt.Sender)
err := portal.handleMatrixReaction(sender, evt)
go portal.sendMessageMetrics(evt, err, "Error sending", nil)
}
func (portal *Portal) handleMatrixReaction(sender *User, evt *event.Event) error {
content, ok := evt.Content.Parsed.(*event.ReactionEventContent)
if !ok {
return fmt.Errorf("unexpected parsed content type %T", evt.Content.Parsed)
}
target := portal.bridge.DB.Message.GetByMXID(content.RelatesTo.EventID)
if target == nil || target.Type == database.MsgReaction {
return fmt.Errorf("unknown target event %s", content.RelatesTo.EventID)
}
info := portal.generateMessageInfo(sender)
dbMsg := portal.markHandled(nil, nil, info, evt.ID, false, true, database.MsgReaction, database.MsgNoError)
portal.upsertReaction(nil, nil, target.JID, sender.JID, evt.ID, info.ID)
portal.log.Debugln("Sending reaction", evt.ID, "to WhatsApp", info.ID)
resp, err := portal.sendReactionToWhatsApp(sender, info.ID, target, content.RelatesTo.Key, evt.Timestamp)
if err == nil {
dbMsg.MarkSent(resp.Timestamp)
}
return err
}
func (portal *Portal) sendReactionToWhatsApp(sender *User, id types.MessageID, target *database.Message, key string, timestamp int64) (whatsmeow.SendResponse, error) {
var messageKeyParticipant *string
if !portal.IsPrivateChat() {
messageKeyParticipant = proto.String(target.Sender.ToNonAD().String())
}
key = variationselector.Remove(key)
return sender.Client.SendMessage(context.TODO(), portal.Key.JID, id, &waProto.Message{
ReactionMessage: &waProto.ReactionMessage{
Key: &waProto.MessageKey{
RemoteJid: proto.String(portal.Key.JID.String()),
FromMe: proto.Bool(target.Sender.User == sender.JID.User),
Id: proto.String(target.JID),
Participant: messageKeyParticipant,
},
Text: proto.String(key),
SenderTimestampMs: proto.Int64(timestamp),
},
})
}
func (portal *Portal) upsertReaction(txn dbutil.Transaction, intent *appservice.IntentAPI, targetJID types.MessageID, senderJID types.JID, mxid id.EventID, jid types.MessageID) {
dbReaction := portal.bridge.DB.Reaction.GetByTargetJID(portal.Key, targetJID, senderJID)
if dbReaction == nil {
dbReaction = portal.bridge.DB.Reaction.New()
dbReaction.Chat = portal.Key
dbReaction.TargetJID = targetJID
dbReaction.Sender = senderJID
} else if intent != nil {
portal.log.Debugfln("Redacting old Matrix reaction %s after new one (%s) was sent", dbReaction.MXID, mxid)
var err error
if intent != nil {
_, err = intent.RedactEvent(portal.MXID, dbReaction.MXID)
}
if intent == nil || errors.Is(err, mautrix.MForbidden) {
_, err = portal.MainIntent().RedactEvent(portal.MXID, dbReaction.MXID)
}
if err != nil {
portal.log.Warnfln("Failed to remove old reaction %s: %v", dbReaction.MXID, err)
}
}
dbReaction.MXID = mxid
dbReaction.JID = jid
dbReaction.Upsert(txn)
}
func (portal *Portal) HandleMatrixRedaction(sender *User, evt *event.Event) {
if err := portal.canBridgeFrom(sender, true); err != nil {
go portal.sendMessageMetrics(evt, err, "Ignoring", nil)
return
}
portal.log.Debugfln("Received redaction %s from %s", evt.ID, evt.Sender)
senderLogIdentifier := sender.MXID
if !sender.HasSession() {
sender = portal.GetRelayUser()
senderLogIdentifier += " (through relaybot)"
}
msg := portal.bridge.DB.Message.GetByMXID(evt.Redacts)
if msg == nil {
go portal.sendMessageMetrics(evt, errTargetNotFound, "Ignoring", nil)
} else if msg.IsFakeJID() {
go portal.sendMessageMetrics(evt, errTargetIsFake, "Ignoring", nil)
} else if portal.Key.JID == types.StatusBroadcastJID && portal.bridge.Config.Bridge.DisableStatusBroadcastSend {
go portal.sendMessageMetrics(evt, errBroadcastSendDisabled, "Ignoring", nil)
} else if msg.Type == database.MsgReaction {
if msg.Sender.User != sender.JID.User {
go portal.sendMessageMetrics(evt, errReactionSentBySomeoneElse, "Ignoring", nil)
} else if reaction := portal.bridge.DB.Reaction.GetByMXID(evt.Redacts); reaction == nil {
go portal.sendMessageMetrics(evt, errReactionDatabaseNotFound, "Ignoring", nil)
} else if reactionTarget := reaction.GetTarget(); reactionTarget == nil {
go portal.sendMessageMetrics(evt, errReactionTargetNotFound, "Ignoring", nil)
} else {
portal.log.Debugfln("Sending redaction reaction %s of %s/%s to WhatsApp", evt.ID, msg.MXID, msg.JID)
_, err := portal.sendReactionToWhatsApp(sender, "", reactionTarget, "", evt.Timestamp)
go portal.sendMessageMetrics(evt, err, "Error sending", nil)
}
} else {
key := &waProto.MessageKey{
FromMe: proto.Bool(true),
Id: proto.String(msg.JID),
RemoteJid: proto.String(portal.Key.JID.String()),
}
if msg.Sender.User != sender.JID.User {
if portal.IsPrivateChat() {
go portal.sendMessageMetrics(evt, errDMSentByOtherUser, "Ignoring", nil)
return
}
key.FromMe = proto.Bool(false)
key.Participant = proto.String(msg.Sender.ToNonAD().String())
}
portal.log.Debugfln("Sending redaction %s of %s/%s to WhatsApp", evt.ID, msg.MXID, msg.JID)
_, err := sender.Client.SendMessage(context.TODO(), portal.Key.JID, "", &waProto.Message{
ProtocolMessage: &waProto.ProtocolMessage{
Type: waProto.ProtocolMessage_REVOKE.Enum(),
Key: key,
},
})
go portal.sendMessageMetrics(evt, err, "Error sending", nil)
}
}
func (portal *Portal) HandleMatrixReadReceipt(sender bridge.User, eventID id.EventID, receipt event.ReadReceipt) {
portal.handleMatrixReadReceipt(sender.(*User), eventID, receipt.Timestamp, true)
}
func (portal *Portal) handleMatrixReadReceipt(sender *User, eventID id.EventID, receiptTimestamp time.Time, isExplicit bool) {
if !sender.IsLoggedIn() {
if isExplicit {
portal.log.Debugfln("Ignoring read receipt by %s/%s: user is not connected to WhatsApp", sender.MXID, sender.JID)
}
return
}
maxTimestamp := receiptTimestamp
// Implicit read receipts don't have an event ID that's already bridged
if isExplicit {
if message := portal.bridge.DB.Message.GetByMXID(eventID); message != nil {
maxTimestamp = message.Timestamp
}
}
prevTimestamp := sender.GetLastReadTS(portal.Key)
lastReadIsZero := false
if prevTimestamp.IsZero() {
prevTimestamp = maxTimestamp.Add(-2 * time.Second)
lastReadIsZero = true
}
messages := portal.bridge.DB.Message.GetMessagesBetween(portal.Key, prevTimestamp, maxTimestamp)
if len(messages) > 0 {
sender.SetLastReadTS(portal.Key, messages[len(messages)-1].Timestamp)
}
groupedMessages := make(map[types.JID][]types.MessageID)
for _, msg := range messages {
var key types.JID
if msg.IsFakeJID() || msg.Sender.User == sender.JID.User {
// Don't send read receipts for own messages or fake messages
continue
} else if !portal.IsPrivateChat() {
key = msg.Sender
} else if !msg.BroadcastListJID.IsEmpty() {
key = msg.BroadcastListJID
} // else: blank key (participant field isn't needed in direct chat read receipts)
groupedMessages[key] = append(groupedMessages[key], msg.JID)
}
// For explicit read receipts, log even if there are no targets. For implicit ones only log when there are targets
if len(groupedMessages) > 0 || isExplicit {
portal.log.Debugfln("Sending read receipts by %s (last read: %d, was zero: %t, explicit: %t): %v",
sender.JID, prevTimestamp.Unix(), lastReadIsZero, isExplicit, groupedMessages)
}
for messageSender, ids := range groupedMessages {
chatJID := portal.Key.JID
if messageSender.Server == types.BroadcastServer {
chatJID = messageSender
messageSender = portal.Key.JID
}
err := sender.Client.MarkRead(ids, receiptTimestamp, chatJID, messageSender)
if err != nil {
portal.log.Warnfln("Failed to mark %v as read by %s: %v", ids, sender.JID, err)
}
}
if isExplicit {
portal.ScheduleDisappearing()
}
}
func typingDiff(prev, new []id.UserID) (started, stopped []id.UserID) {
OuterNew:
for _, userID := range new {
for _, previousUserID := range prev {
if userID == previousUserID {
continue OuterNew
}
}
started = append(started, userID)
}
OuterPrev:
for _, userID := range prev {
for _, previousUserID := range new {
if userID == previousUserID {
continue OuterPrev
}
}
stopped = append(stopped, userID)
}
return
}
func (portal *Portal) setTyping(userIDs []id.UserID, state types.ChatPresence) {
for _, userID := range userIDs {
user := portal.bridge.GetUserByMXIDIfExists(userID)
if user == nil || !user.IsLoggedIn() {
continue
}
portal.log.Debugfln("Bridging typing change from %s to chat presence %s", state, user.MXID)
err := user.Client.SendChatPresence(portal.Key.JID, state, types.ChatPresenceMediaText)
if err != nil {
portal.log.Warnln("Error sending chat presence:", err)
}
if portal.bridge.Config.Bridge.SendPresenceOnTyping {
err = user.Client.SendPresence(types.PresenceAvailable)
if err != nil {
user.log.Warnln("Failed to set presence:", err)
}
}
}
}
func (portal *Portal) HandleMatrixTyping(newTyping []id.UserID) {
portal.currentlyTypingLock.Lock()
defer portal.currentlyTypingLock.Unlock()
startedTyping, stoppedTyping := typingDiff(portal.currentlyTyping, newTyping)
portal.currentlyTyping = newTyping
portal.setTyping(startedTyping, types.ChatPresenceComposing)
portal.setTyping(stoppedTyping, types.ChatPresencePaused)
}
func (portal *Portal) canBridgeFrom(sender *User, allowRelay bool) error {
if !sender.IsLoggedIn() {
if allowRelay && portal.HasRelaybot() {
return nil
} else if sender.Session != nil {
return errUserNotConnected
} else {
return errUserNotLoggedIn
}
} else if portal.IsPrivateChat() && sender.JID.User != portal.Key.Receiver.User && (!allowRelay || !portal.HasRelaybot()) {
return errDifferentUser
}
return nil
}
func (portal *Portal) Delete() {
portal.Portal.Delete()
portal.bridge.portalsLock.Lock()
delete(portal.bridge.portalsByJID, portal.Key)
if len(portal.MXID) > 0 {
delete(portal.bridge.portalsByMXID, portal.MXID)
}
portal.bridge.portalsLock.Unlock()
}
func (portal *Portal) GetMatrixUsers() ([]id.UserID, error) {
members, err := portal.MainIntent().JoinedMembers(portal.MXID)
if err != nil {
return nil, fmt.Errorf("failed to get member list: %w", err)
}
var users []id.UserID
for userID := range members.Joined {
_, isPuppet := portal.bridge.ParsePuppetMXID(userID)
if !isPuppet && userID != portal.bridge.Bot.UserID {
users = append(users, userID)
}
}
return users, nil
}
func (portal *Portal) CleanupIfEmpty() {
users, err := portal.GetMatrixUsers()
if err != nil {
portal.log.Errorfln("Failed to get Matrix user list to determine if portal needs to be cleaned up: %v", err)
return
}
if len(users) == 0 {
portal.log.Infoln("Room seems to be empty, cleaning up...")
portal.Delete()
portal.Cleanup(false)
}
}
func (portal *Portal) Cleanup(puppetsOnly bool) {
if len(portal.MXID) == 0 {
return
}
intent := portal.MainIntent()
members, err := intent.JoinedMembers(portal.MXID)
if err != nil {
portal.log.Errorln("Failed to get portal members for cleanup:", err)
return
}
for member := range members.Joined {
if member == intent.UserID {
continue
}
puppet := portal.bridge.GetPuppetByMXID(member)
if puppet != nil {
_, err = puppet.DefaultIntent().LeaveRoom(portal.MXID)
if err != nil {
portal.log.Errorln("Error leaving as puppet while cleaning up portal:", err)
}
} else if !puppetsOnly {
_, err = intent.KickUser(portal.MXID, &mautrix.ReqKickUser{UserID: member, Reason: "Deleting portal"})
if err != nil {
portal.log.Errorln("Error kicking user while cleaning up portal:", err)
}
}
}
_, err = intent.LeaveRoom(portal.MXID)
if err != nil {
portal.log.Errorln("Error leaving with main intent while cleaning up portal:", err)
}
}
func (portal *Portal) HandleMatrixLeave(brSender bridge.User) {
sender := brSender.(*User)
if portal.IsPrivateChat() {
portal.log.Debugln("User left private chat portal, cleaning up and deleting...")
portal.Delete()
portal.Cleanup(false)
return
} else if portal.bridge.Config.Bridge.BridgeMatrixLeave {
err := sender.Client.LeaveGroup(portal.Key.JID)
if err != nil {
portal.log.Errorfln("Failed to leave group as %s: %v", sender.MXID, err)
return
}
//portal.log.Infoln("Leave response:", <-resp)
}
portal.CleanupIfEmpty()
}
func (portal *Portal) HandleMatrixKick(brSender bridge.User, brTarget bridge.Ghost) {
sender := brSender.(*User)
target := brTarget.(*Puppet)
_, err := sender.Client.UpdateGroupParticipants(portal.Key.JID, map[types.JID]whatsmeow.ParticipantChange{
target.JID: whatsmeow.ParticipantChangeRemove,
})
if err != nil {
portal.log.Errorfln("Failed to kick %s from group as %s: %v", target.JID, sender.MXID, err)
return
}
//portal.log.Infoln("Kick %s response: %s", puppet.JID, <-resp)
}
func (portal *Portal) HandleMatrixInvite(brSender bridge.User, brTarget bridge.Ghost) {
sender := brSender.(*User)
target := brTarget.(*Puppet)
_, err := sender.Client.UpdateGroupParticipants(portal.Key.JID, map[types.JID]whatsmeow.ParticipantChange{
target.JID: whatsmeow.ParticipantChangeAdd,
})
if err != nil {
portal.log.Errorfln("Failed to add %s to group as %s: %v", target.JID, sender.MXID, err)
return
}
//portal.log.Infofln("Add %s response: %s", puppet.JID, <-resp)
}
func (portal *Portal) HandleMatrixMeta(brSender bridge.User, evt *event.Event) {
sender := brSender.(*User)
if !sender.Whitelisted || !sender.IsLoggedIn() {
return
}
switch content := evt.Content.Parsed.(type) {
case *event.RoomNameEventContent:
if content.Name == portal.Name {
return
}
portal.Name = content.Name
err := sender.Client.SetGroupName(portal.Key.JID, content.Name)
if err != nil {
portal.log.Errorln("Failed to update group name:", err)
}
case *event.TopicEventContent:
if content.Topic == portal.Topic {
return
}
portal.Topic = content.Topic
err := sender.Client.SetGroupTopic(portal.Key.JID, "", "", content.Topic)
if err != nil {
portal.log.Errorln("Failed to update group description:", err)
}
case *event.RoomAvatarEventContent:
portal.avatarLock.Lock()
defer portal.avatarLock.Unlock()
if content.URL == portal.AvatarURL || (content.URL.IsEmpty() && portal.Avatar == "remove") {
return
}
var data []byte
var err error
if !content.URL.IsEmpty() {
data, err = portal.MainIntent().DownloadBytes(content.URL)
if err != nil {
portal.log.Errorfln("Failed to download updated avatar %s: %v", content.URL, err)
return
}
portal.log.Debugfln("%s set the group avatar to %s", sender.MXID, content.URL)
} else {
portal.log.Debugfln("%s removed the group avatar", sender.MXID)
}
newID, err := sender.Client.SetGroupPhoto(portal.Key.JID, data)
if err != nil {
portal.log.Errorfln("Failed to update group avatar: %v", err)
return
}
portal.log.Debugfln("Successfully updated group avatar to %s", newID)
portal.Avatar = newID
portal.AvatarURL = content.URL
portal.UpdateBridgeInfo()
portal.Update(nil)
}
}