Update Telethon version

mautrix_telegram/abstract_user.py

@@ -42,7 +42,7 @@ class AbstractUser:
         self.tgid = None
         self.mxid = None
 
-    def _init_client(self):
+    async def _init_client(self):
         self.log.debug(f"Initializing client for {self.name}")
         device = f"{platform.system()} {platform.release()}"
         sysversion = MautrixTelegramClient.__version__
@@ -53,7 +53,7 @@ class AbstractUser:
                                             app_version=__version__,
                                             system_version=sysversion,
                                             device_model=device)
-        self.client.add_update_handler(self._update_catch)
+        await self.client.add_event_handler(self._update_catch)
 
     async def update(self, update):
         return False
@@ -89,7 +89,7 @@ class AbstractUser:
 
     async def start(self):
         if not self.client:
-            self._init_client()
+            await self._init_client()
         self.connected = await self.client.connect()
 
     async def ensure_started(self, even_if_no_session=False):

mautrix_telegram/bot.py

@@ -38,7 +38,6 @@ class Bot(AbstractUser):
         self.token = token
         self.whitelisted = True
         self.username = None
-        self._init_client()
         self.chats = {chat.id: chat.type for chat in BotChat.query.all()}
 
     async def start(self):

mautrix_telegram/util/file_transfer.py

@@ -74,6 +74,7 @@ async def transfer_file_to_matrix(db, client, intent, location):
         db.add(db_file)
         db.commit()
     except IntegrityError:
+        db.rollback()
         log.exception("Integrity error while saving transferred file data. "
                       "This was probably caused by two simultaneous transfers of the same file, "
                       "and should not cause any problems.")