option to allow testing ids

app/events/telegram.go

@@ -35,6 +35,7 @@ type TelegramListener struct {
 	AdminGroup   string // can be int64 or public group username (without "@" prefix)
 	IdleDuration time.Duration
 	SuperUsers   SuperUser
+	TestingIDs   []int64
 	StartupMsg   string
 	NoSpamReply  bool
 	Dry          bool
@@ -159,7 +160,8 @@ func (l *TelegramListener) procEvents(update tbapi.Update) error {
 	log.Printf("[DEBUG] %s", string(msgJSON))
 
 	fromChat := update.Message.Chat.ID
-	if fromChat != l.chatID { // ignore messages from other chats
+	if !l.isChatAllowed(fromChat) {
+		// ignore messages from other chats
 		return nil
 	}
 
@@ -207,6 +209,18 @@ func (l *TelegramListener) procEvents(update tbapi.Update) error {
 	return errs.ErrorOrNil()
 }
 
+func (l *TelegramListener) isChatAllowed(fromChat int64) bool {
+	if fromChat == l.chatID {
+		return true
+	}
+	for _, id := range l.TestingIDs {
+		if id == fromChat {
+			return true
+		}
+	}
+	return false
+}
+
 func (l *TelegramListener) forwardToAdmin(banUserStr string, msg *bot.Message) {
 	log.Printf("[DEBUG] forward to admin ban data for %s, group: %d", banUserStr, l.adminChatID)
 	forwardMsg := fmt.Sprintf("**permanently banned [%s](tg://user?id=%d)**\n[unban](%s) if it was a mistake\n\n%s\n----",

app/main.go

@@ -34,6 +34,8 @@ var opts struct {
 		Group   string `long:"group" env:"GROUP" description:"admin group name/id"`
 	} `group:"admin" namespace:"admin" env-namespace:"ADMIN"`
 
+	TestingIDs []int64 `long:"testing-id" env:"TESTING_ID" env-delim:"," description:"testing ids, allow bot to reply to them"`
+
 	LogsPath    string           `short:"l" long:"logs" env:"SPAM_LOGS" default:"logs" description:"path to spam logs"`
 	SuperUsers  events.SuperUser `long:"super" description:"super-users"`
 	NoSpamReply bool             `long:"no-spam-reply" env:"NO_SPAM_REPLY" description:"do not reply to spam messages"`
@@ -147,6 +149,7 @@ func execute(ctx context.Context) error {
 		AdminURL:        opts.Admin.URL,
 		AdminListenAddr: opts.Admin.Address,
 		AdminSecret:     opts.Admin.Secret,
+		TestingIDs:      opts.TestingIDs,
 		Dry:             opts.Dry,
 	}