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fix(cron): validate expression syntax in _validate_schedule_for_add

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ferkans-amir 2026-07-28 11:43:39 +02:00 committed by Xubin Ren
parent c6bd5f0075
commit 73a0080484
1 changed files with 13 additions and 6 deletions
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19
nanobot/cron/service.py
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@ -75,13 +75,20 @@ def _validate_schedule_for_add(schedule: CronSchedule) -> None:
if schedule.tz and schedule.kind != "cron":
raise ValueError("tz can only be used with cron schedules")
if schedule.kind == "cron" and schedule.tz:
if schedule.kind == "cron":
if not schedule.expr or not schedule.expr.strip():
raise ValueError("cron schedule requires a non-empty 'expr'")
try:
from zoneinfo import ZoneInfo
ZoneInfo(schedule.tz)
except Exception:
raise ValueError(f"unknown timezone '{schedule.tz}'") from None
from croniter import croniter
croniter(schedule.expr)
except Exception as e:
raise ValueError(f"invalid cron expression '{schedule.expr}': {e}") from None
if schedule.tz:
try:
from zoneinfo import ZoneInfo
ZoneInfo(schedule.tz)
except Exception:
raise ValueError(f"unknown timezone '{schedule.tz}'") from None
def _has_legacy_delivery_context(payload: CronPayload) -> bool: