74 lines
2.1 KiB
Python
74 lines
2.1 KiB
Python
# Pyrogram - Telegram MTProto API Client Library for Python
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# Copyright (C) 2017-2018 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 asyncio
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import logging
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from .transport import *
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log = logging.getLogger(__name__)
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class Connection:
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MAX_RETRIES = 3
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MODES = {
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# TODO: Implement other protocols using asyncio
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0: TCPFull,
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1: TCPAbridged,
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2: TCPIntermediate,
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3: TCPAbridgedO,
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4: TCPIntermediateO
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}
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def __init__(self, address: tuple, proxy: dict, mode: int = 2):
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self.address = address
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self.proxy = proxy
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self.mode = self.MODES.get(mode, TCPAbridged)
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self.protocol = None # type: TCP
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async def connect(self):
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for i in range(Connection.MAX_RETRIES):
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self.protocol = self.mode(self.proxy)
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try:
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log.info("Connecting...")
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await self.protocol.connect(self.address)
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except OSError:
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self.protocol.close()
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await asyncio.sleep(1)
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else:
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break
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else:
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log.warning("Connection failed! Trying again...")
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raise TimeoutError
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def close(self):
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self.protocol.close()
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log.info("Disconnected")
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async def send(self, data: bytes):
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try:
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await self.protocol.send(data)
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except Exception:
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raise OSError
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async def recv(self) -> bytes or None:
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return await self.protocol.recv()
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