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matterbridge/bridge/whatsapp/handlers.go
2019-06-14 00:02:32 +02:00

106 lines
3.4 KiB
Go

package bwhatsapp
import (
"strings"
"time"
"github.com/42wim/matterbridge/bridge/config"
"github.com/Rhymen/go-whatsapp"
)
/*
Implement handling messages coming from WhatsApp
Check:
- https://github.com/Rhymen/go-whatsapp#add-message-handlers
- https://github.com/Rhymen/go-whatsapp/blob/master/handler.go
- https://github.com/tulir/mautrix-whatsapp/tree/master/whatsapp-ext for more advanced command handling
*/
// HandleError received from WhatsApp
func (b *Bwhatsapp) HandleError(err error) {
// ignore received invalid data errors. https://github.com/42wim/matterbridge/issues/843
if strings.Contains(err.Error(), "error processing data: received invalid data") {
return
}
b.Log.Errorf("%v", err) // TODO implement proper handling? at least respond to different error types
}
// HandleTextMessage sent from WhatsApp, relay it to the brige
func (b *Bwhatsapp) HandleTextMessage(message whatsapp.TextMessage) {
if message.Info.FromMe { // || !strings.Contains(strings.ToLower(message.Text), "@echo") {
return
}
// whatsapp sends last messages to show context , cut them
if message.Info.Timestamp < b.startedAt {
return
}
messageTime := time.Unix(int64(message.Info.Timestamp), 0) // TODO check how behaves between timezones
groupJid := message.Info.RemoteJid
senderJid := message.Info.SenderJid
if len(senderJid) == 0 {
// TODO workaround till https://github.com/Rhymen/go-whatsapp/issues/86 resolved
senderJid = *message.Info.Source.Participant
}
// translate sender's Jid to the nicest username we can get
senderName := b.getSenderName(senderJid)
if senderName == "" {
senderName = "Someone" // don't expose telephone number
}
extText := message.Info.Source.Message.ExtendedTextMessage
if extText != nil && extText.ContextInfo != nil && extText.ContextInfo.MentionedJid != nil {
// handle user mentions
for _, mentionedJid := range extText.ContextInfo.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(numberAndSuffix[0] + "@s.whatsapp.net")
if mention == "" {
mention = "someone"
}
message.Text = strings.Replace(message.Text, "@"+numberAndSuffix[0], "@"+mention, 1)
}
}
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJid, b.Account)
rmsg := config.Message{
UserID: senderJid,
Username: senderName,
Text: message.Text,
Timestamp: messageTime,
Channel: groupJid,
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
// ParentID: TODO, // TODO handle thread replies // map from Info.QuotedMessageID string
// Event string `json:"event"`
// Gateway string // will be added during message processing
ID: message.Info.Id}
if avatarURL, exists := b.userAvatars[senderJid]; exists {
rmsg.Avatar = avatarURL
}
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}
//
//func (b *Bwhatsapp) HandleImageMessage(message whatsapp.ImageMessage) {
// fmt.Println(message) // TODO implement
//}
//
//func (b *Bwhatsapp) HandleVideoMessage(message whatsapp.VideoMessage) {
// fmt.Println(message) // TODO implement
//}
//
//func (b *Bwhatsapp) HandleJsonMessage(message string) {
// fmt.Println(message) // TODO implement
//}
// TODO HandleRawMessage
// TODO HandleAudioMessage