mirror of
https://github.com/mofeng-git/One-KVM.git
synced 2025-12-12 01:00:29 +08:00
107 lines
3.6 KiB
Python
107 lines
3.6 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) 2018-2024 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 stat
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from typing import Any
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from . import raise_error
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from . import filter_printable
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from .basic import valid_number
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from .basic import valid_string_list
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from .basic import valid_stripped_string_not_empty
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# =====
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def valid_abs_path(arg: Any, type: str="", name: str="") -> str: # pylint: disable=redefined-builtin
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if type:
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if not name:
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name = f"absolute path to existent {type}"
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type = {
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"file": "reg",
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"dir": "dir",
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"link": "lnk",
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"sock": "sock",
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"fifo": "fifo",
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"char": "chr",
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"block": "blk",
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}[type]
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else:
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if not name:
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name = "absolute path"
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arg = os.path.abspath(valid_stripped_string_not_empty(arg, name))
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if type:
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try:
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st = os.stat(arg)
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except Exception as ex:
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raise_error(arg, f"{name}: {ex}")
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else:
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if not getattr(stat, f"S_IS{type.upper()}")(st.st_mode):
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raise_error(arg, name)
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return arg
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def valid_abs_file(arg: Any, name: str="") -> str:
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return valid_abs_path(arg, type="file", name=name)
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def valid_abs_dir(arg: Any, name: str="") -> str:
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return valid_abs_path(arg, type="dir", name=name)
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def valid_printable_filename(arg: Any, name: str="") -> str:
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if not name:
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name = "printable filename"
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arg = valid_stripped_string_not_empty(arg, name)
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if (
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"/" in arg
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or "\0" in arg
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or arg.startswith(".")
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or arg == "lost+found"
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):
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raise_error(arg, name)
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return filter_printable(arg, "_", 255)
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# =====
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def valid_unix_mode(arg: Any) -> int:
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return int(valid_number(arg, min=0, name="UNIX mode"))
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def valid_options(arg: Any, name: str="") -> list[str]:
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if not name:
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name = "options"
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return valid_string_list(arg, delim=r"[,\t]+", name=name)
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def valid_command(arg: Any) -> list[str]:
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cmd = valid_options(arg, name="command")
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if len(cmd) == 0:
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raise_error(arg, "command")
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cmd[0] = valid_abs_file(cmd[0], name="command entry point")
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return cmd
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