don't accept bot own token (for self-hosted projects)

olgram/commands/bots.py

@@ -9,7 +9,7 @@ import re
 from textwrap import dedent
 
 from olgram.models.models import Bot, User
-from olgram.settings import OlgramSettings
+from olgram.settings import OlgramSettings, BotSettings
 from olgram.commands.menu import send_bots_menu
 from server.server import register_token
 from locales.locale import _
@@ -104,6 +104,9 @@ async def bot_added(message: types.Message, state: FSMContext):
     except TelegramAPIError:
         return await on_unknown_error()
 
+    if token == BotSettings.token():
+        return await on_duplication_bot()
+
     user, created = await User.get_or_create(telegram_id=message.from_user.id)
     bot = Bot(token=Bot.encrypted_token(token), owner=user, name=test_bot_info.username,
               super_chat_id=message.from_user.id)

olgram/settings.py

@@ -110,6 +110,7 @@ logging.basicConfig(level=os.environ.get("LOGLEVEL", "WARNING"))
 
 class BotSettings(AbstractSettings):
     @classmethod
+    @lru_cache
     def token(cls) -> str:
         """
         Токен olgram бота