Add support for sender_chat (telegram) (42wim#1677)

* Add support for sender_chat (telegram)

Fixes 42wim#1654
https://core.telegram.org/bots/api#december-7-2021

* Add debuglevel option

Add `debuglevel=1` in telegram config to increase debug

bridge/telegram/handlers.go

@@ -10,6 +10,7 @@ import (
 
  "github.com/42wim/matterbridge/bridge/config"
  "github.com/42wim/matterbridge/bridge/helper"
+ "github.com/davecgh/go-spew/spew"
  tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
 )
 
@@ -123,6 +124,25 @@ func (b *Btelegram) handleUsername(rmsg *config.Message, message *tgbotapi.Messa
  }
  }
 
+ if message.SenderChat != nil { //nolint:nestif
+ rmsg.UserID = strconv.FormatInt(message.SenderChat.ID, 10)
+ if b.GetBool("UseFirstName") {
+ rmsg.Username = message.SenderChat.FirstName
+ }
+
+ if rmsg.Username == "" || rmsg.Username == "Channel_Bot" {
+ rmsg.Username = message.SenderChat.UserName
+
+ if rmsg.Username == "" || rmsg.Username == "Channel_Bot" {
+ rmsg.Username = message.SenderChat.FirstName
+ }
+ }
+ // only download avatars if we have a place to upload them (configured mediaserver)
+ if b.General.MediaServerUpload != "" || (b.General.MediaServerDownload != "" && b.General.MediaDownloadPath != "") {
+ b.handleDownloadAvatar(message.SenderChat.ID, rmsg.Channel)
+ }
+ }
+
  // if we really didn't find a username, set it to unknown
  if rmsg.Username == "" {
  rmsg.Username = unknownUser
@@ -139,6 +159,10 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
  continue
  }
 
+ if b.GetInt("debuglevel") == 1 {
+ spew.Dump(update.Message)
+ }
+
  var message *tgbotapi.Message
 
  rmsg := config.Message{Account: b.Account, Extra: make(map[string][]interface{})}