// 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" "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.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) convertPollCreationMessage(intent *appservice.IntentAPI, msg *waProto.PollCreationMessage) *ConvertedMessage { optionsListText := make([]string, len(msg.GetOptions())) optionsListHTML := make([]string, len(msg.GetOptions())) optionNames := make([]string, len(msg.GetOptions())) 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])) } 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, "")) return &ConvertedMessage{ Intent: intent, Type: event.EventMessage, Content: &event.MessageEventContent{ Body: body, MsgType: event.MsgText, Format: event.FormatHTML, FormattedBody: formattedBody, }, Extra: map[string]any{ "fi.mau.whatsapp.poll": map[string]any{ "options": optionNames, "max_choices": msg.GetSelectableOptionsCount(), }, }, 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) } }