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matterbridge/bridge/whatsappmulti/handlers.go

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// +build whatsappmulti
package bwhatsapp
import (
"fmt"
"mime"
"strings"
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/bridge/helper"
"go.mau.fi/whatsmeow/binary/proto"
"go.mau.fi/whatsmeow/types"
"go.mau.fi/whatsmeow/types/events"
)
// nolint:gocritic
func (b *Bwhatsapp) eventHandler(evt interface{}) {
switch e := evt.(type) {
case *events.Message:
b.handleMessage(e)
}
}
func (b *Bwhatsapp) handleMessage(message *events.Message) {
msg := message.Message
switch {
case msg == nil, message.Info.IsFromMe, message.Info.Timestamp.Before(b.startedAt):
return
}
b.Log.Infof("Receiving message %#v", msg)
switch {
case msg.Conversation != nil || msg.ExtendedTextMessage != nil:
b.handleTextMessage(message.Info, msg)
case msg.VideoMessage != nil:
b.handleVideoMessage(message)
case msg.AudioMessage != nil:
b.handleAudioMessage(message)
case msg.DocumentMessage != nil:
b.handleDocumentMessage(message)
case msg.ImageMessage != nil:
b.handleImageMessage(message)
}
}
// nolint:funlen
func (b *Bwhatsapp) handleTextMessage(messageInfo types.MessageInfo, msg *proto.Message) {
senderJID := messageInfo.Sender
channel := messageInfo.Chat
senderName := b.getSenderName(messageInfo.Sender)
if senderName == "" {
senderName = "Someone" // don't expose telephone number
}
if msg.GetExtendedTextMessage() == nil && msg.GetConversation() == "" {
b.Log.Debugf("message without text content? %#v", msg)
return
}
var text string
// nolint:nestif
if msg.GetExtendedTextMessage() == nil {
text = msg.GetConversation()
} else {
text = msg.GetExtendedTextMessage().GetText()
ci := msg.GetExtendedTextMessage().GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
if ci.MentionedJid != nil {
// handle user mentions
for _, mentionedJID := range ci.MentionedJid {
numberAndSuffix := strings.SplitN(mentionedJID, "@", 2)
// mentions comes as telephone numbers and we don't want to expose it to other bridges
// replace it with something more meaninful to others
mention := b.getSenderNotify(types.NewJID(numberAndSuffix[0], types.DefaultUserServer))
if mention == "" {
mention = "someone"
}
text = strings.Replace(text, "@"+numberAndSuffix[0], "@"+mention, 1)
}
}
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Text: text,
Channel: channel.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
// ParentID: TODO, // TODO handle thread replies // map from Info.QuotedMessageID string
ID: messageInfo.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}
// HandleImageMessage sent from WhatsApp, relay it to the brige
func (b *Bwhatsapp) handleImageMessage(msg *events.Message) {
imsg := msg.Message.GetImageMessage()
senderJID := msg.Info.Sender
senderName := b.getSenderName(senderJID)
ci := imsg.GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Channel: msg.Info.Chat.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
ID: msg.Info.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
if err != nil {
b.Log.Errorf("Mimetype detection error: %s", err)
return
}
// rename .jfif to .jpg https://github.com/42wim/matterbridge/issues/1292
if fileExt[0] == ".jfif" {
fileExt[0] = ".jpg"
}
// rename .jpe to .jpg https://github.com/42wim/matterbridge/issues/1463
if fileExt[0] == ".jpe" {
fileExt[0] = ".jpg"
}
filename := fmt.Sprintf("%v%v", msg.Info.ID, fileExt[0])
b.Log.Debugf("Trying to download %s with type %s", filename, imsg.GetMimetype())
data, err := b.wc.Download(imsg)
if err != nil {
b.Log.Errorf("Download image failed: %s", err)
return
}
// Move file to bridge storage
helper.HandleDownloadData(b.Log, &rmsg, filename, imsg.GetCaption(), "", &data, b.General)
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}
// HandleVideoMessage downloads video messages
func (b *Bwhatsapp) handleVideoMessage(msg *events.Message) {
imsg := msg.Message.GetVideoMessage()
senderJID := msg.Info.Sender
senderName := b.getSenderName(senderJID)
ci := imsg.GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Channel: msg.Info.Chat.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
ID: msg.Info.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
if err != nil {
b.Log.Errorf("Mimetype detection error: %s", err)
return
}
if len(fileExt) == 0 {
fileExt = append(fileExt, ".mp4")
}
filename := fmt.Sprintf("%v%v", msg.Info.ID, fileExt[0])
b.Log.Debugf("Trying to download %s with size %#v and type %s", filename, imsg.GetFileLength(), imsg.GetMimetype())
data, err := b.wc.Download(imsg)
if err != nil {
b.Log.Errorf("Download video failed: %s", err)
return
}
// Move file to bridge storage
helper.HandleDownloadData(b.Log, &rmsg, filename, imsg.GetCaption(), "", &data, b.General)
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}
// HandleAudioMessage downloads audio messages
func (b *Bwhatsapp) handleAudioMessage(msg *events.Message) {
imsg := msg.Message.GetAudioMessage()
senderJID := msg.Info.Sender
senderName := b.getSenderName(senderJID)
ci := imsg.GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Channel: msg.Info.Chat.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
ID: msg.Info.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
if err != nil {
b.Log.Errorf("Mimetype detection error: %s", err)
return
}
if len(fileExt) == 0 {
fileExt = append(fileExt, ".ogg")
}
filename := fmt.Sprintf("%v%v", msg.Info.ID, fileExt[0])
b.Log.Debugf("Trying to download %s with size %#v and type %s", filename, imsg.GetFileLength(), imsg.GetMimetype())
data, err := b.wc.Download(imsg)
if err != nil {
b.Log.Errorf("Download video failed: %s", err)
return
}
// Move file to bridge storage
helper.HandleDownloadData(b.Log, &rmsg, filename, "audio message", "", &data, b.General)
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}
// HandleDocumentMessage downloads documents
func (b *Bwhatsapp) handleDocumentMessage(msg *events.Message) {
imsg := msg.Message.GetDocumentMessage()
senderJID := msg.Info.Sender
senderName := b.getSenderName(senderJID)
ci := imsg.GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Channel: msg.Info.Chat.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
ID: msg.Info.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
if err != nil {
b.Log.Errorf("Mimetype detection error: %s", err)
return
}
filename := fmt.Sprintf("%v", imsg.GetFileName())
b.Log.Debugf("Trying to download %s with extension %s and type %s", filename, fileExt, imsg.GetMimetype())
data, err := b.wc.Download(imsg)
if err != nil {
b.Log.Errorf("Download document message failed: %s", err)
return
}
// Move file to bridge storage
helper.HandleDownloadData(b.Log, &rmsg, filename, "document", "", &data, b.General)
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}