Files
praxis/server/auth/rate_limit.py
T
Praxis CI 00e39a3f85 feat(milestone): merge phase/01 operator-foundation → milestone/v0.4-operator-tier
Phase 1 complete — Operator Foundation:
- Postgres 16 in Docker-in-LXC (asyncpg pool, 5-table schema, PgStore, migrations)
- Operator auth (argon2id, signed stateless cookies, slowapi 5/min rate limit)
- VC issuer key migration SQLite→Postgres (archive-before-active, R-VC-MIG-01)
- Operator bootstrap CLI (create-operator.py, idempotent)
- Backup cron script + G-008 restore drill
- Graceful degradation (server starts without Postgres)
- 272 tests pass, 33 skip (Postgres-requiring), 0 fail

---ci---
project: praxis
phase: 1
milestone: v0.4
status: complete
requirements:
  covered: [REQ-MT-01, REQ-AUTH-01, REQ-NFR-AUTH-01, REQ-NFR-MT-01, REQ-MT-02]
  partial: []
---/ci---
2026-08-04 01:41:06 +00:00

34 lines
1.1 KiB
Python

"""Login rate limiting (TASK-03-03, D-041).
slowapi Limiter with an in-memory backend (single-instance — D-041).
5 login attempts per minute per client IP. On exceed → 429 + Retry-After.
R-AUTH-03 (in-memory counter lost on restart) is an accepted pilot risk
(RESEARCH-v0.4 §2.5) — a restart at most resets the counter, which slightly
widens the brute-force window but does not enable it (argon2id + 5/min is
still the binding control). A hand-rolled counter is the documented
fallback if slowapi is ever removed.
"""
from __future__ import annotations
from slowapi import Limiter
from slowapi.util import get_remote_address
limiter = Limiter(key_func=get_remote_address, storage_uri="memory://")
def reset_login_rate_limit() -> None:
"""Clear the in-memory rate-limit counters (test helper + restart-safe)."""
try:
limiter.reset()
except Exception:
pass
def rate_limit_login():
"""Decorator factory: 5 login attempts per minute per IP (D-041)."""
return limiter.limit("5/minute")
__all__ = ["limiter", "rate_limit_login", "reset_login_rate_limit"]