# 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 ..tl_object import TLObject

class Bytes(TLObject):

@staticmethod

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

length = int.from_bytes(b.read(1), "little")

if length <= 253:

x = b.read(length)

b.read(-(length + 1) % 4)

else:

length = int.from_bytes(b.read(3), "little")

x = b.read(length)

b.read(-length % 4)

return x

def __new__(cls, value: bytes) -> bytes:

length = len(value)

if length <= 253:

return (

bytes([length])

+ value

+ bytes(-(length + 1) % 4)

)

else:

return (

bytes([254])

+ length.to_bytes(3, "little")

+ value

+ bytes(-length % 4)

)