Deny and remove forwarded msgs from doing captcha users

sources/constants.py

@@ -10,9 +10,9 @@ Author:
 Creation date:
     09/09/2018
 Last modified date:
-    07/06/2022
+    30/06/2022
 Version:
-    1.26.3
+    1.26.4
 '''
 
 ###############################################################################
@@ -290,7 +290,7 @@ CONST = {
     "DEV_DONATION_ADDR": "https://www.buymeacoffee.com/joincaptchabot",
 
     # Bot version
-    "VERSION": "1.26.3 (07/06/2022)"
+    "VERSION": "1.26.4 (30/06/2022)"
 }
 
 # Supported languages list

sources/join_captcha_bot.py

@@ -12,9 +12,9 @@ Author:
 Creation date:
     09/09/2018
 Last modified date:
-    07/06/2022
+    30/06/2022
 Version:
-    1.26.3
+    1.26.4
 '''
 
 ###############################################################################
@@ -1117,6 +1117,20 @@ def msg_nocmd(update: Update, context: CallbackContext):
     lang = get_chat_config(chat_id, "Language")
     rm_result_msg = get_chat_config(chat_id, "Rm_Result_Msg")
     captcha_mode = new_users[chat_id][user_id]["join_data"]["captcha_mode"]
+    # Check for forwarded messages and delete it
+    forward_from = getattr(update_msg, "forward_from", None)
+    forward_from_chat = getattr(update_msg, "forward_from_chat", None)
+    if (forward_from is not None) or (forward_from_chat is not None):
+        printts("[{}] Spammer detected: {}.".format(chat_id, user_name))
+        printts("[{}] Removing forwarded msg: {}.".format(chat_id, msg_text))
+        delete_result = tlg_delete_msg(bot, chat_id, msg_id)
+        if delete_result["error"] == "":
+            printts("Message removed.")
+        elif delete_result["error"] == "Message can't be deleted":
+            printts("No rights to remove msg.")
+        else:
+            printts("Message can't be deleted.")
+        return
     # Check for Spam (check if the message contains any URL or alias)
     has_url = re.findall(CONST["REGEX_URLS"], msg_text)
     has_alias = tlg_alias_in_string(msg_text)