mirror of
https://github.com/mofeng-git/One-KVM.git
synced 2025-12-12 01:00:29 +08:00
87 lines
3.7 KiB
Python
87 lines
3.7 KiB
Python
# ========================================================================== #
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# #
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# KVMD - The main PiKVM daemon. #
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# #
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# Copyright (C) 2020 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 dataclasses
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from ...logging import get_logger
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from ... import aiotools
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# =====
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class VncAuthError(Exception):
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def __init__(self, path: str, lineno: int, msg: str) -> None:
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super().__init__(f"Syntax error at {path}:{lineno}: {msg}")
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# =====
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@dataclasses.dataclass(frozen=True)
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class VncAuthKvmdCredentials:
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user: str
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passwd: str
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class VncAuthManager:
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def __init__(
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self,
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path: str,
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enabled: bool,
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) -> None:
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self.__path = path
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self.__enabled = enabled
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async def read_credentials(self) -> tuple[dict[str, VncAuthKvmdCredentials], bool]:
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if self.__enabled:
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try:
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return (await self.__inner_read_credentials(), True)
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except VncAuthError as err:
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get_logger(0).error(str(err))
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except Exception:
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get_logger(0).exception("Unhandled exception while reading VNCAuth passwd file")
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return ({}, (not self.__enabled))
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async def __inner_read_credentials(self) -> dict[str, VncAuthKvmdCredentials]:
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lines = (await aiotools.read_file(self.__path)).split("\n")
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credentials: dict[str, VncAuthKvmdCredentials] = {}
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for (lineno, line) in enumerate(lines):
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if len(line.strip()) == 0 or line.lstrip().startswith("#"):
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continue
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if " -> " not in line:
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raise VncAuthError(self.__path, lineno, "Missing ' -> ' operator")
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(vnc_passwd, kvmd_userpass) = map(str.lstrip, line.split(" -> ", 1))
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if ":" not in kvmd_userpass:
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raise VncAuthError(self.__path, lineno, "Missing ':' operator in KVMD credentials (right part)")
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(kvmd_user, kvmd_passwd) = kvmd_userpass.split(":")
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kvmd_user = kvmd_user.strip()
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if len(kvmd_user) == 0:
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raise VncAuthError(self.__path, lineno, "Empty KVMD user (right part)")
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if vnc_passwd in credentials:
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raise VncAuthError(self.__path, lineno, "Duplicating VNC password (left part)")
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credentials[vnc_passwd] = VncAuthKvmdCredentials(kvmd_user, kvmd_passwd)
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return credentials
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