mirror of
https://github.com/mofeng-git/One-KVM.git
synced 2026-01-29 00:51:53 +08:00
pst server
This commit is contained in:
Maxim Devaev
@@ -485,6 +485,25 @@ def _get_config_scheme() -> Dict:
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},
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},
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"pst": {
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"server": {
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"unix": Option("/run/kvmd/pst.sock", type=valid_abs_path, unpack_as="unix_path"),
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"unix_rm": Option(True, type=valid_bool),
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"unix_mode": Option(0o660, type=valid_unix_mode),
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"heartbeat": Option(15.0, type=valid_float_f01),
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"access_log_format": Option("[%P / %{X-Real-IP}i] '%r' => %s; size=%b ---"
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" referer='%{Referer}i'; user_agent='%{User-Agent}i'"),
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},
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"storage": Option("/var/lib/kvmd/pst", type=valid_abs_dir, unpack_as="storage_path"),
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"ro_retries_delay": Option(10.0, type=valid_float_f01),
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"remount_cmd": Option([
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"/usr/bin/sudo", "--non-interactive",
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"/usr/bin/kvmd-helper-pst-remount", "{mode}",
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], type=valid_command),
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},
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"otg": {
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"vendor_id": Option(0x1D6B, type=valid_otg_id), # Linux Foundation
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"product_id": Option(0x0104, type=valid_otg_id), # Multifunction Composite Gadget
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46
kvmd/apps/pst/__init__.py
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46
kvmd/apps/pst/__init__.py
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@@ -0,0 +1,46 @@
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# ========================================================================== #
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# #
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# KVMD - The main PiKVM daemon. #
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# #
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# Copyright (C) 2018-2022 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# 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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# This program 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 General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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from typing import List
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from typing import Optional
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from ...logging import get_logger
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from .. import init
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from .server import PstServer
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# =====
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def main(argv: Optional[List[str]]=None) -> None:
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config = init(
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prog="kvmd-pst",
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description="The KVMD persistent storage manager",
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argv=argv,
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check_run=True,
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)[2]
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PstServer(
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**config.pst._unpack(ignore="server"),
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).run(**config.pst.server._unpack())
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get_logger(0).info("Bye-bye")
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24
kvmd/apps/pst/__main__.py
Normal file
24
kvmd/apps/pst/__main__.py
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@@ -0,0 +1,24 @@
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# ========================================================================== #
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# #
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# KVMD - The main PiKVM daemon. #
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# #
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# Copyright (C) 2018-2022 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# 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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# This program 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 General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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from . import main
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main()
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126
kvmd/apps/pst/server.py
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126
kvmd/apps/pst/server.py
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@@ -0,0 +1,126 @@
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# ========================================================================== #
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# #
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# KVMD - The main PiKVM daemon. #
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# #
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# Copyright (C) 2018-2022 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# 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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# This program 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 General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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import os
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import asyncio
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from typing import List
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from typing import Dict
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from aiohttp.web import Request
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from aiohttp.web import WebSocketResponse
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from ...logging import get_logger
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from ... import aiotools
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from ... import aiohelpers
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from ...htserver import exposed_http
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from ...htserver import exposed_ws
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from ...htserver import WsSession
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from ...htserver import HttpServer
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# =====
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class PstServer(HttpServer): # pylint: disable=too-many-arguments,too-many-instance-attributes
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def __init__( # pylint: disable=too-many-arguments,too-many-locals
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self,
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storage_path: str,
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ro_retries_delay: float,
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remount_cmd: List[str],
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) -> None:
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super().__init__()
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self.__data_path = os.path.join(storage_path, "data")
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self.__ro_retries_delay = ro_retries_delay
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self.__remount_cmd = remount_cmd
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self.__notifier = aiotools.AioNotifier()
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# ===== WEBSOCKET
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@exposed_http("GET", "/ws")
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async def __ws_handler(self, request: Request) -> WebSocketResponse:
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async with self._ws_session(request) as ws:
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await ws.send_event("loop", {})
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return (await self._ws_loop(ws))
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@exposed_ws("ping")
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async def __ws_ping_handler(self, ws: WsSession, _: Dict) -> None:
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await ws.send_event("pong", {})
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# ===== SYSTEM STUFF
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async def _init_app(self) -> None:
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if (await self.__remount_storage(True)):
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await self.__remount_storage(False)
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aiotools.create_deadly_task("Controller", self.__controller())
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self._add_exposed(self)
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async def _on_shutdown(self) -> None:
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logger = get_logger(0)
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logger.info("Stopping system tasks ...")
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await aiotools.stop_all_deadly_tasks()
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logger.info("Disconnecting clients ...")
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await self.__broadcast_storage_state(False)
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await self._close_all_wss()
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logger.info("On-Shutdown complete")
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async def _on_cleanup(self) -> None:
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logger = get_logger(0)
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await self.__remount_storage(False)
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logger.info("On-Cleanup complete")
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async def _on_ws_opened(self) -> None:
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await self.__notifier.notify()
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async def _on_ws_closed(self) -> None:
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await self.__notifier.notify()
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# ===== SYSTEM TASKS
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async def __controller(self) -> None:
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prev = False
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while True:
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cur = self.__has_clients()
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if not prev and cur:
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await self.__broadcast_storage_state(await self.__remount_storage(True))
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elif prev and not cur:
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while not (await self.__remount_storage(False)):
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if self.__has_clients():
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continue
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await asyncio.sleep(self.__ro_retries_delay)
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prev = cur
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await self.__notifier.wait()
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def __has_clients(self) -> bool:
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return bool(self._get_wss())
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async def __broadcast_storage_state(self, write_allowed: bool) -> None:
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await self._broadcast_ws_event("storage_state", {
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"data": {"path": self.__data_path},
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"write_allowed": write_allowed,
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})
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async def __remount_storage(self, rw: bool) -> bool:
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return (await aiohelpers.remount("PST", self.__remount_cmd, rw))
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