mirror of
https://github.com/LorenEteval/Furious.git
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85 lines
2.6 KiB
Python
85 lines
2.6 KiB
Python
# Copyright (C) 2024–present Loren Eteval & contributors <loren.eteval@proton.me>
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#
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# This file is part of Furious.
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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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"""Persist sing-tun's independent native and host configuration."""
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from __future__ import annotations
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from Furious.Frozenlib import AppSettings, Mixins, registerAppSettings
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from Furious.Interface import StorageBackend
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from Furious.Models.Encoding import PyBase64Encoder, UJSONEncoder
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import logging
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__all__ = ['UserSingTUNSettings']
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logger = logging.getLogger(__name__)
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# Keep sing-tun customizations independent of the legacy CustomTUNSettings.
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# 0.8.2 ignores this key and preserves it during ordinary settings writes;
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# an explicit settings reset clears both engines' customizations.
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registerAppSettings('CustomSingTUNSettings')
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class UserSingTUNSettings(Mixins.CleanupOnExit, StorageBackend):
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"""Own only the sing-tun document, including its host options."""
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self._restoreFailed = False
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raw = AppSettings.get('CustomSingTUNSettings')
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self._data = {}
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if raw is None:
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return
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try:
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data = UJSONEncoder.decode(PyBase64Encoder.decode(raw))
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if not isinstance(data, dict):
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raise TypeError('sing-tun settings repository root must be an object')
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self._data = data
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except Exception:
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# Any non-exit exceptions
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self._restoreFailed = True
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logger.exception('failed to restore persisted sing-tun settings')
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def data(self) -> dict:
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return self._data
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def sync(self):
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AppSettings.set(
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'CustomSingTUNSettings',
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PyBase64Encoder.encode(UJSONEncoder.encode(self._data).encode()),
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)
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self._restoreFailed = False
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def cleanup(self):
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if self._restoreFailed and not self._data:
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logger.warning('preserving unreadable sing-tun settings during cleanup')
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return
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self.sync()
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