Avoid webpage preview updates being sent as message edits (by hash matching)

1 files changed, 5 insertions, 1 deletions

diff --git a/telegram/handlers.go b/telegram/handlers.go
index abc1f5d..cc6e635 100644
--- a/telegram/handlers.go
+++ b/telegram/handlers.go
@@ -226,6 +226,8 @@ func (c *Client) updateNewMessage(update *client.UpdateNewMessage) {
 		}).Warn("New message from chat")
 
 		c.ProcessIncomingMessage(chatId, update.Message, ignoredResource)
+
+		c.updateLastMessageHash(update.Message.ChatId, update.Message.Id, update.Message.Content)
 	}()
 }
 
@@ -233,6 +235,8 @@ func (c *Client) updateNewMessage(update *client.UpdateNewMessage) {
 func (c *Client) updateMessageContent(update *client.UpdateMessageContent) {
 	markupFunction := formatter.EntityToXEP0393
 
+	defer c.updateLastMessageHash(update.ChatId, update.MessageId, update.NewContent)
+
 	c.SendMessageLock.Lock()
 	c.SendMessageLock.Unlock()
 	xmppId, err := gateway.IdsDB.GetByTgIds(c.Session.Login, c.jid, update.ChatId, update.MessageId)
@@ -250,7 +254,7 @@ func (c *Client) updateMessageContent(update *client.UpdateMessageContent) {
 		return
 	}
 
-	if update.NewContent.MessageContentType() == client.TypeMessageText {
+	if update.NewContent.MessageContentType() == client.TypeMessageText && c.hasLastMessageHashChanged(update.ChatId, update.MessageId, update.NewContent) {
 		textContent := update.NewContent.(*client.MessageText)
 		var editChar string
 		if c.Session.AsciiArrows {