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43 lines
1.2 KiB
43 lines
1.2 KiB
"""Asynchronous RCON."""
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from asyncio import open_connection
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from typing import IO
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from rcon.exceptions import RequestIdMismatch, WrongPassword
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from rcon.proto import Packet, Type
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__all__ = ['rcon']
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async def communicate(reader: IO, writer: IO, packet: Packet) -> Packet:
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"""Asynchronous requests."""
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writer.write(bytes(packet))
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await writer.drain()
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return await Packet.aread(reader)
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async def rcon(command: str, *arguments: str, host: str, port: int,
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passwd: str) -> str:
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"""Runs a command asynchronously."""
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reader, writer = await open_connection(host, port)
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login = Packet.make_login(passwd)
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response = await communicate(reader, writer, login)
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# Wait for SERVERDATA_AUTH_RESPONSE according to:
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# https://developer.valvesoftware.com/wiki/Source_RCON_Protocol
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while response.type != Type.SERVERDATA_AUTH_RESPONSE:
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response = await Packet.aread(reader)
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if response.id == -1:
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raise WrongPassword()
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request = Packet.make_command(command, *arguments)
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response = await communicate(reader, writer, request)
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if response.id != request.id:
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raise RequestIdMismatch(request.id, response.id)
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return response.payload
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