68 lines
1.8 KiB
Python
68 lines
1.8 KiB
Python
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# Pyrogram - Telegram MTProto API Client Library for Python
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# Copyright (C) 2017 Dan Tès <https://github.com/delivrance>
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#
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# This file is part of Pyrogram.
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#
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# Pyrogram is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Pyrogram is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
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import logging
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from .tcp import TCP
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log = logging.getLogger(__name__)
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class TCPAbridged(TCP):
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def __init__(self):
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super().__init__()
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self.is_first_packet = None
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def connect(self, address: tuple):
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super().connect(address)
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self.is_first_packet = True
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log.info("Connected!")
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def send(self, data: bytes):
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length = len(data) // 4
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data = (
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bytes([length]) + data
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if length <= 126
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else b"\x7f" + int.to_bytes(length, 3, "little") + data
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)
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if self.is_first_packet:
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data = b"\xef" + data
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self.is_first_packet = False
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super().sendall(data)
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def recv(self) -> bytes or None:
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length = self.recvall(1)
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if length is None:
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return None
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if length == b"\x7f":
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length = self.recvall(3)
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if length is None:
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return None
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length = int.from_bytes(length, "little") * 4
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packet = self.recvall(length)
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return packet
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