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# Pyrogram - Telegram MTProto API Client Library for Python

# Copyright (C) 2017-2019 Dan Tès <https://github.com/delivrance>

#

# This file is part of Pyrogram.

#

# Pyrogram is free software: you can redistribute it and/or modify

# it under the terms of the GNU Lesser General Public License as published

# by the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# Pyrogram is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU Lesser General Public License for more details.

#

# You should have received a copy of the GNU Lesser General Public License

# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.

from io import BytesIO

from .object import Object

from .primitives import Int, Long

class Message(Object):

ID = 0x5bb8e511 # hex(crc32(b"message msg_id:long seqno:int bytes:int body:Object = Message"))

__slots__ = ["msg_id", "seq_no", "length", "body"]

QUALNAME = "Message"

def __init__(self, body: Object, msg_id: int, seq_no: int, length: int):

self.msg_id = msg_id

self.seq_no = seq_no

self.length = length

self.body = body

@staticmethod

def read(b: BytesIO, *args) -> "Message":

msg_id = Long.read(b)

seq_no = Int.read(b)

length = Int.read(b)

body = b.read(length)

return Message(Object.read(BytesIO(body)), msg_id, seq_no, length)

def write(self) -> bytes:

b = BytesIO()

b.write(Long(self.msg_id))

b.write(Int(self.seq_no))

b.write(Int(self.length))

b.write(self.body.write())

return b.getvalue()