Files
PartsInventorySystem/app
thejayman77 d76642f85d Throttle the change-password route and make epoch bumps atomic
Two session-management bugs from the audit:

- /api/password recorded failed attempts against the login budget but never
  checked it, so a borrowed session could guess the current password without
  limit while still locking the owner out of /api/login. Verified: thirteen
  consecutive wrong guesses all returned 403 and none returned 429. It now
  spends from the same budget it was topping up.

- bump_epoch read the epoch and wrote it back without the write lock, so
  concurrent revocations lost increments and sessions that should have been cut
  off survived. Verified: twenty concurrent bumps advanced the counter from 2 to
  6, and twenty concurrent "sign out other devices" calls left four sessions
  authenticated. It takes BEGIN IMMEDIATE now; set_password hashes before
  locking, so scrypt doesn't serialise unrelated writes.

Removing either fix makes its test fail with exactly that symptom.

README corrections: deployment is rsync, not git pull — gitea on .8 cannot
serve a clone to .8 itself, which the deploy section now documents — and the
concurrency check count was understated.

Checks go from 182 to 197.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-24 11:04:52 -04:00
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