586f74b929
Replace MIT with the full GNU GPLv3 text, update license metadata in pyproject.toml (+ trove classifiers) and PKGBUILD, and add SPDX-License-Identifier headers to all Python modules and shell scripts. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
43 lines
1.4 KiB
Python
43 lines
1.4 KiB
Python
# SPDX-License-Identifier: GPL-3.0-or-later
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"""persistence — modification of a watched persistence-relevant file.
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Persistence has to land somewhere that survives a reboot: cron, systemd units,
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``authorized_keys``, shell rc files. We watch a configurable set and alert on
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anything modified since the previous scan (``state.persist_since``).
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"""
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from __future__ import annotations
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import os
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from collections.abc import Iterator
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from ..alert import Alert, Severity
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from ..config import Config
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from ..system import SystemState
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def _iter_files(roots) -> Iterator[str]:
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for root in roots:
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if os.path.isdir(root):
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for dirpath, _dirs, files in os.walk(root, onerror=lambda e: None):
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for f in files:
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yield os.path.join(dirpath, f)
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elif os.path.lexists(root):
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yield root
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def detect(state: SystemState, cfg: Config) -> Iterator[Alert]:
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since = state.persist_since
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if since is None:
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return
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for path in _iter_files(cfg.watch_persistence):
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try:
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mtime = os.lstat(path).st_mtime
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except OSError:
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continue
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if mtime > since:
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yield Alert(
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severity=Severity.HIGH,
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signature="persistence",
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key=f"persist:{path}",
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detail=f"persistence file modified: {path}",
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)
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