42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
"""Utilities shared by fail2ban-related services."""
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from __future__ import annotations
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import json
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from datetime import UTC, datetime
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def ts_to_iso(unix_ts: int) -> str:
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"""Convert a Unix timestamp to an ISO 8601 UTC string."""
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return datetime.fromtimestamp(unix_ts, tz=UTC).isoformat()
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def parse_data_json(raw: object) -> tuple[list[str], int]:
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"""Extract matches and failure count from the fail2ban bans.data value."""
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if raw is None:
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return [], 0
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obj: dict[str, object] = {}
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if isinstance(raw, str):
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try:
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parsed = json.loads(raw)
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if isinstance(parsed, dict):
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obj = parsed
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except json.JSONDecodeError:
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return [], 0
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elif isinstance(raw, dict):
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obj = raw
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raw_matches = obj.get("matches")
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matches = [str(m) for m in raw_matches] if isinstance(raw_matches, list) else []
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raw_failures = obj.get("failures")
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failures = 0
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if isinstance(raw_failures, (int, float, str)):
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try:
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failures = int(raw_failures)
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except (ValueError, TypeError):
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failures = 0
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return matches, failures
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