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cultcache-rs: a stamp's local year must be 1-9999 (0000 with an offset reaching year 1 is no stamp)

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Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
Libby 2026-11-14 05:14:23 +00:00
commit acf2947873
1 changed files with 2 additions and 2 deletions
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4
packages/cultcache-rs/src/lib.rs
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@ -4320,7 +4320,7 @@ fn restamped_over(entry: &CultCacheEnvelope, held: &[CultCacheEnvelope]) -> Resu
/// Whether `text` is a `stored_at` stamp: the one shape pinned in `tests/vectors/stored-at-stamp/`. An RFC 3339 date-time,
/// `YYYY-MM-DDThh:mm:ss`, an optional fraction of 1 to 9 digits, then `Z` or `+hh:mm` / `-hh:mm` (hours 00-23, minutes 00-59);
/// uppercase `T` and `Z`, ASCII digits, no surrounding whitespace, a real calendar date, seconds 00-59, and an instant (the
/// uppercase `T` and `Z`, ASCII digits, no surrounding whitespace, a real calendar date, seconds 00-59, a local year of 0001-9999, and an instant (the
/// offset applied) within years 0001-9999. Checked by hand, not by `chrono`'s RFC 3339 reader, which takes other shapes
/// (lowercase `t`, a space, a leap second). A peer's `storedAt` is stored as it arrives, so one that is not a stamp is refused.
pub fn is_stored_at_stamp(text: &str) -> bool {
@ -4360,7 +4360,7 @@ pub fn is_stored_at_stamp(text: &str) -> bool {
} else {
return false;
};
if second > 59 {
if second > 59 || year < 1 {
return false;
}
let Some(local) = chrono::NaiveDate::from_ymd_opt(year as i32, month, day)