Call Chat/Sender Getter init methods

telethon/events/callbackquery.py

@@ -95,11 +95,9 @@ class CallbackQuery(EventBuilder):
         """
         def __init__(self, query, peer, msg_id):
             super().__init__(peer, msg_id=msg_id)
+            SenderGetter.__init__(self, query.user_id)
             self.query = query
             self.data_match = None
-            self._sender_id = query.user_id
-            self._input_sender = None
-            self._sender = None
             self._message = None
             self._answered = False
 

telethon/events/common.py

@@ -134,11 +134,10 @@ class EventCommon(ChatGetter, abc.ABC):
     _event_name = 'Event'
 
     def __init__(self, chat_peer=None, msg_id=None, broadcast=False):
+        super().__init__(self, chat_peer, broadcast=broadcast)
         self._entities = {}
         self._client = None
-        self._chat_peer = chat_peer
         self._message_id = msg_id
-        self._broadcast = broadcast
         self.original_update = None
 
     def _set_client(self, client):

telethon/events/inlinequery.py

@@ -80,12 +80,10 @@ class InlineQuery(EventBuilder):
         """
         def __init__(self, query):
             super().__init__(chat_peer=types.PeerUser(query.user_id))
+            SenderGetter.__init__(self, query.user_id)
             self.query = query
             self.pattern_match = None
             self._answered = False
-            self._sender_id = query.user_id
-            self._input_sender = None
-            self._sender = None
 
         def _set_client(self, client):
             super()._set_client(client)

telethon/events/userupdate.py

@@ -101,9 +101,7 @@ class UserUpdate(EventBuilder):
                 # We need the client to actually figure out its type.
                 super().__init__(chat_id)
 
-            self._sender_id = user_id
+            SenderGetter.__init__(self, user_id)
-            self._input_sender = None
-            self._sender = None
 
             self.online = None if status is None else \
                 isinstance(status, types.UserStatusOnline)

telethon/tl/custom/chatgetter.py

@@ -9,14 +9,13 @@ class ChatGetter(abc.ABC):
     Helper base class that introduces the `chat`, `input_chat`
     and `chat_id` properties and `get_chat` and `get_input_chat`
     methods.
-
-    Subclasses **must** have the following private members: `_chat`,
-    `_input_chat`, `_chat_peer`, `_broadcast` and `_client`. As an end
-    user, you should not worry about this.
     """
-    def __init__(self):
+    def __init__(self, chat_peer=None, *, input_chat=None, chat=None, broadcast=None):
-        self._chat = self._input_chat = self._chat_peer = \
+        self._chat_peer = chat_peer
-            self._client = self._broadcast = None
+        self._input_chat = input_chat
+        self._chat = chat
+        self._broadcast = broadcast
+        self._client = None
 
     @property
     def chat(self):

telethon/tl/custom/conversation.py

@@ -30,15 +30,13 @@ class Conversation(ChatGetter):
     def __init__(self, client, input_chat,
                  *, timeout, total_timeout, max_messages,
                  exclusive, replies_are_responses):
+        # This call resets the client
+        ChatGetter.__init__(self, input_chat=input_chat)
+
         self._id = Conversation._id_counter
         Conversation._id_counter += 1
 
         self._client = client
-        self._chat = None
-        self._input_chat = input_chat
-        self._chat_peer = None
-        self._broadcast = None
-
         self._timeout = timeout
         self._total_timeout = total_timeout
         self._total_due = None

telethon/tl/custom/forward.py

@@ -28,17 +28,17 @@ class Forward(ChatGetter, SenderGetter):
         self._client = client
         self.original_fwd = original
 
-        self._sender_id = original.from_id
+        sender, input_sender = utils._get_entity_pair(
-        self._sender, self._input_sender = utils._get_entity_pair(
             original.from_id, entities, client._entity_cache)
 
-        self._broadcast = None
+        if not original.channel_id:
-        if original.channel_id:
+            peer = chat = input_chat = None
-            self._chat_peer = types.PeerChannel(original.channel_id)
-
-            self._chat, self._input_chat = utils._get_entity_pair(
-                 self.chat_id, entities, client._entity_cache)
         else:
-            self._chat = self._input_chat = self._chat_peer = None
+            peer = types.PeerChannel(original.channel_id)
+            chat, input_chat = utils._get_entity_pair(
+                 utils.get_peer_id(peer), entities, client._entity_cache)
+
+        ChatGetter.__init__(self, peer, chat=chat, input_chat=input_chat)
+        SenderGetter.__init__(self, original.from_id, sender=sender, input_sender=input_sender)
 
     # TODO We could reload the message

telethon/tl/custom/message.py

@@ -184,27 +184,25 @@ class Message(ChatGetter, SenderGetter, TLObject, abc.ABC):
         self._buttons = None
         self._buttons_flat = None
         self._buttons_count = None
-        self._sender_id = from_id
-        self._sender = None
-        self._input_sender = None
         self._via_bot = None
         self._via_input_bot = None
         self._action_entities = None
 
         if not out and isinstance(to_id, types.PeerUser):
-            self._chat_peer = types.PeerUser(from_id)
+            chat_peer = types.PeerUser(from_id)
             if from_id == to_id.user_id:
                 self.out = not self.fwd_from  # Patch out in our chat
         else:
-            self._chat_peer = to_id
+            chat_peer = to_id
 
-        if post and not from_id and self._chat_peer:
+        # Note that these calls would reset the client
+        ChatGetter.__init__(self, chat_peer, broadcast=post)
+        SenderGetter.__init__(self, from_id)
+
+        if post and not from_id and chat_peer:
             # If the message comes from a Channel, let the sender be it
-            self._sender_id = utils.get_peer_id(self._chat_peer)
+            self._sender_id = utils.get_peer_id(chat_peer)
 
-        self._broadcast = post
-        self._chat = None
-        self._input_chat = None
         self._forward = None
 
     def _finish_init(self, client, entities, input_chat):

telethon/tl/custom/sendergetter.py

@@ -6,13 +6,11 @@ class SenderGetter(abc.ABC):
     Helper base class that introduces the `sender`, `input_sender`
     and `sender_id` properties and `get_sender` and `get_input_sender`
     methods.
-
-    Subclasses **must** have the following private members: `_sender`,
-    `_input_sender`, `_sender_id` and `_client`. As an end user, you
-    should not worry about this.
     """
-    def __init__(self):
+    def __init__(self, sender_id=None, *, sender=None, input_sender=None):
-        self._sender = self._input_sender = self._sender_id = \
+        self._sender_id = sender_id
+        self._sender = sender
+        self._input_sender = input_sender
         self._client = None
 
     @property