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73 lines
2.5 KiB
Python
73 lines
2.5 KiB
Python
# Pyrogram - Telegram MTProto API Client Library for Python
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# Copyright (C) 2017-present Dan <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 typing import Optional
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from .transport import TCP, TCPAbridged
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from ..session.internals import DataCenter
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log = logging.getLogger(__name__)
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class Connection:
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MAX_CONNECTION_ATTEMPTS = 3
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def __init__(self, dc_id: int, test_mode: bool, ipv6: bool, proxy: dict, media: bool = False):
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self.dc_id = dc_id
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self.test_mode = test_mode
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self.ipv6 = ipv6
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self.proxy = proxy
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self.media = media
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self.address = DataCenter(dc_id, test_mode, ipv6, media)
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self.protocol: TCP = None
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async def connect(self):
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for i in range(Connection.MAX_CONNECTION_ATTEMPTS):
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self.protocol = TCPAbridged(self.ipv6, 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 as e:
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log.warning("Unable to connect due to network issues: %s", e)
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await self.protocol.close()
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await asyncio.sleep(1)
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else:
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log.info("Connected! %s DC%s%s - IPv%s",
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"Test" if self.test_mode else "Production",
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self.dc_id,
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" (media)" if self.media else "",
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"6" if self.ipv6 else "4")
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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 ConnectionError
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async def close(self):
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await self.protocol.close()
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log.info("Disconnected")
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async def send(self, data: bytes):
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await self.protocol.send(data)
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async def recv(self) -> Optional[bytes]:
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return await self.protocol.recv()
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