Corban-Lee Jones
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125 lines
4.3 KiB
Python
125 lines
4.3 KiB
Python
"""
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Reads and handles updates in the server console file.
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"""
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import re
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import logging
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import asyncio
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from pathlib import Path
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from dataclasses import dataclass
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import httpx
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import aiofiles
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from rcon.source import rcon
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from discord import Embed, Colour
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from discord.ext import commands, tasks
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CONSOLE_FILE_PATH = Path(__file__).parent.parent / "data" / "server-console.txt"
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log = logging.getLogger(__name__)
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class ConsoleCog(commands.Cog):
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"""
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Reads and handles the server-console.txt file.
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"""
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_last_line_number = 0
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def __init__(self, bot: commands.Bot):
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self.bot = bot
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self.monitor_console.start()
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@tasks.loop(seconds=1)
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async def monitor_console(self):
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"""
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Check the latest version of the console log file.
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"""
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if not CONSOLE_FILE_PATH.exists():
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self.monitor_console.cancel()
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raise FileNotFoundError("Server console file doesn't exist, task cancelled.")
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async with aiofiles.open(CONSOLE_FILE_PATH, "r", encoding="utf-8") as file:
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# If we are at 0, restarting the bot would cause rapid fire of all log lines,
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# instead lets grab the latest line, to prevent spam.
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if self._last_line_number == 0:
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await file.seek(0, 2)
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self._last_line_number = await file.tell()
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return
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await file.seek(self._last_line_number)
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lines = await file.readlines()
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if not lines:
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log.debug("no new lines to read")
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return
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for line in lines:
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await self.process_console_line(line.strip())
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self._last_line_number = await file.tell()
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async def process_console_line(self, line: str):
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"""
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Determine how to handle the given line from the server console.
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"""
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if "CheckModsNeedUpdate: Mods need update" in line:
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await self.handle_mod_needs_update(line)
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elif "ConnectionManager: [fully-connected]" in line:
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cog = self.bot.get_cog("PlayersCog")
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await cog.handle_player_connected(line)
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elif "ConnectionManager: [disconnect]" in line:
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cog = self.bot.get_cog("PlayersCog")
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await cog.handle_player_disconnected(line)
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async def alert_and_wait_for_restart(self, intervals_ms: list[int], reason: str):
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for interval_ms in intervals_ms:
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seconds_remaining = interval_ms / 1000
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log.info("Planned restart in %s seconds, reason: %s", seconds_remaining, reason)
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await rcon(f"Planned restart in {seconds_remaining} seconds, reason: {reason}", **self.bot.rcon_details)
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while seconds_remaining > 0:
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await asyncio.sleep(1)
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seconds_remaining -= 1
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async def kick_all_users(self):
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players_message = await rcon("players", **self.bot.rcon_details)
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re_pattern = r"Players connected \(\d+\):\s*(-[\w-]+(?:\s*[\w-]+)*)"
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re_match = re.search(re_pattern, players_message)
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if not re_match:
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log.info("No players found to kick")
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usernames_string = re_match.group(1)
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for i, username in enumerate(usernames_string.split("-")):
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if not username:
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continue
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await rcon(f'kickuser "{username}" -r "Server is Updating. Kicked to ensure your progress is saved"', **self.bot.rcon_details)
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log.info("Kicked '%s' users for restart", i + 1)
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async def handle_mod_needs_update(self, line: str):
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"""
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Report when one or more mods need to be updated.
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"""
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log.info("one or more mods are outdated")
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await self.alert_and_wait_for_restart(
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intervals_ms=[300000, 60000, 6000],
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reason="Mod needs updating"
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)
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await self.kick_all_users()
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await rcon("save", **self.bot.rcon_details)
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await rcon("quit", **self.bot.rcon_details)
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channel = self.bot.get_channel(self.bot.in_game_channel_id)
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channel = await self.bot.fetch_channel(self.bot.in_game_channel_id) if not channel else channel
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await channel.send(content="The server is currently being restarted for mod updates.")
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async def setup(bot: commands.Bot):
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cog = ConsoleCog(bot)
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await bot.add_cog(cog)
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log.info("Added %s cog", cog.__class__.__name__)
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