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refactor(redis): strengthen shared cache invalidation

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This commit is contained in:
3252a8
2026-05-21 06:26:48 +03:00
parent 3405d12696
commit 044cb4de7e
10 changed files with 237 additions and 61 deletions
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backend/bot/app/web/webapp/assets.py
+24 -19
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@@ -820,25 +820,30 @@ async def _enforce_webapp_rate_limit(
or "unknown"
)
key = f"{action}:{ip_address}:{int(user_id)}"
redis = await get_redis(settings)
if redis is not None:
redis_rate_key = redis_key(settings, "rate-limit", "webapp", key)
current = await redis.incr(redis_rate_key)
if current == 1:
await redis.expire(redis_rate_key, settings.WEBAPP_RATE_LIMIT_TTL_SECONDS)
if current > settings.WEBAPP_RATE_LIMIT_MAX_REQUESTS:
ttl = await redis.ttl(redis_rate_key)
retry_after = max(1, int(ttl if ttl and ttl > 0 else WEBAPP_RATE_LIMIT_WINDOW_SECONDS))
return web.json_response(
{
"ok": False,
"error": "rate_limited",
"retry_after": retry_after,
},
status=429,
headers={"Retry-After": str(retry_after)},
)
return None
try:
redis = await get_redis(settings)
if redis is not None:
redis_rate_key = redis_key(settings, "rate-limit", "webapp", key)
current = await redis.incr(redis_rate_key)
if current == 1:
await redis.expire(redis_rate_key, settings.WEBAPP_RATE_LIMIT_TTL_SECONDS)
if current > settings.WEBAPP_RATE_LIMIT_MAX_REQUESTS:
ttl = await redis.ttl(redis_rate_key)
retry_after = max(
1, int(ttl if ttl and ttl > 0 else WEBAPP_RATE_LIMIT_WINDOW_SECONDS)
)
return web.json_response(
{
"ok": False,
"error": "rate_limited",
"retry_after": retry_after,
},
status=429,
headers={"Retry-After": str(retry_after)},
)
return None
except Exception as exc:
logger.warning("Redis webapp rate limiter unavailable; using local fallback: %s", exc)
buckets: Dict[str, deque[float]] = request.app["webapp_rate_limit_buckets"]
lock: asyncio.Lock = request.app["webapp_rate_limit_lock"]