2022-03-25 21:19:28 +03:00

99 lines
3.8 KiB
Python

# ========================================================================== #
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2022 Maxim Devaev <mdevaev@gmail.com> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
import copy
import asyncio
from typing import Dict
from typing import AsyncGenerator
from typing import Optional
import aiohttp
from ....logging import get_logger
from .... import aiotools
from .... import htclient
from .base import BaseInfoSubmanager
# =====
class FanInfoSubmanager(BaseInfoSubmanager):
def __init__(
self,
unix_path: str,
timeout: float,
state_poll: float,
) -> None:
self.__unix_path = unix_path
self.__timeout = timeout
self.__state_poll = state_poll
async def get_state(self) -> Dict:
return {
"monitored": bool(self.__unix_path),
"state": ((await self.__get_fan_state() if self.__unix_path else None)),
}
async def poll_state(self) -> AsyncGenerator[Dict, None]:
prev_state: Dict = {}
while True:
if self.__unix_path:
pure = state = await self.get_state()
if pure["state"] is not None:
try:
pure = copy.deepcopy(state)
pure["state"]["service"]["now_ts"] = 0
except Exception:
pass
if pure != prev_state:
yield state
prev_state = pure
await asyncio.sleep(self.__state_poll)
else:
yield (await self.get_state())
await aiotools.wait_infinite()
# =====
async def __get_fan_state(self) -> Optional[Dict]:
try:
async with self.__make_http_session() as session:
async with session.get("http://localhost/state") as response:
htclient.raise_not_200(response)
return (await response.json())["result"]
except Exception as err:
get_logger(0).error("Can't read fan state: %s", err)
return None
def __make_http_session(self) -> aiohttp.ClientSession:
kwargs: Dict = {
"headers": {
"User-Agent": htclient.make_user_agent("KVMD"),
},
"timeout": aiohttp.ClientTimeout(total=self.__timeout),
"connector": aiohttp.UnixConnector(path=self.__unix_path)
}
return aiohttp.ClientSession(**kwargs)