Telethon/telethon/tl/core/tlmessage.py
2018-06-21 09:58:12 +02:00

54 lines
1.8 KiB
Python

import asyncio
import struct
from .gzippacked import GzipPacked
from .. import TLObject
from ..functions import InvokeAfterMsgRequest
class TLMessage(TLObject):
"""
https://core.telegram.org/mtproto/service_messages#simple-container.
Messages are what's ultimately sent to Telegram:
message msg_id:long seqno:int bytes:int body:bytes = Message;
Each message has its own unique identifier, and the body is simply
the serialized request that should be executed on the server. Then
Telegram will, at some point, respond with the result for this msg.
Thus it makes sense that requests and their result are bound to a
sent `TLMessage`, and this result can be represented as a `Future`
that will eventually be set with either a result, error or cancelled.
"""
def __init__(self, msg_id, seq_no, obj=None, after_id=0):
self.msg_id = msg_id
self.seq_no = seq_no
self.obj = obj
self.container_msg_id = None
self.future = asyncio.Future()
# After which message ID this one should run. We do this so
# InvokeAfterMsgRequest is transparent to the user and we can
# easily invoke after while confirming the original request.
self.after_id = after_id
def to_dict(self):
return {
'_': 'TLMessage',
'msg_id': self.msg_id,
'seq_no': self.seq_no,
'obj': self.obj,
'container_msg_id': self.container_msg_id,
'after_id': self.after_id
}
def __bytes__(self):
if self.after_id is None:
body = GzipPacked.gzip_if_smaller(self.obj)
else:
body = GzipPacked.gzip_if_smaller(
InvokeAfterMsgRequest(self.after_id, self.obj))
return struct.pack('<qii', self.msg_id, self.seq_no, len(body)) + body