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bytes.py
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46 lines (38 loc) · 1.64 KB
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# Hydrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-2023 Dan <https://github.com/delivrance>
# Copyright (C) 2023-present Hydrogram <https://hydrogram.org>
#
# This file is part of Hydrogram.
#
# Hydrogram 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.
#
# Hydrogram 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 Hydrogram. If not, see <http://www.gnu.org/licenses/>.
from io import BytesIO
from typing import Any
from hydrogram.raw.core.tl_object import TLObject
class Bytes(bytes, TLObject):
@classmethod
def read(cls, data: BytesIO, *args: Any) -> bytes:
length = int.from_bytes(data.read(1), "little")
if length <= 253:
x = data.read(length)
data.read(-(length + 1) % 4)
else:
length = int.from_bytes(data.read(3), "little")
x = data.read(length)
data.read(-length % 4)
return x
def __new__(cls, value: bytes) -> bytes: # type: ignore
length = len(value)
if length <= 253:
return bytes([length]) + value + bytes(-(length + 1) % 4)
return bytes([254]) + length.to_bytes(3, "little") + value + bytes(-length % 4)