wi BddlZddlZddlmZeZGddZy)N) get_settingsc @eZdZdZdZd dedededzdedzdef d Z y) RateLimiterz%Token bucket rate limiter using Redisctjtjd|_tj |_tj|_y)NT)decode_responses) redisfrom_urlsettings REDIS_URL redis_clientRATE_LIMIT_BUCKET_SIZE bucket_sizeRATE_LIMIT_REFILL_RATE_PER_SEC refill_rate)selfs 3/var/www/notifications/app/services/rate_limiter.py__init__zRateLimiter.__init__ s8!NN8+=+=PTU#::#BBNkeytokensrrreturnc^tj}d|}||n |j}||n |j}|jj } | j |d| j |d| j \} } | |} |} nt| } t| } || z } | |z} t|| | z} | |k\rh| |z} |jj } | j|d| | j|d|| j|d| j yy)a Check if request is allowed under rate limit and consume tokens Args: key: rate limit key (e.g., "tenant:123:telegram" or "tenant:123") tokens: number of tokens to consume (default: 1) bucket_size: override default bucket size (optional) refill_rate: override default refill rate (optional) Returns: True if allowed, False if rate limited z ratelimit:r last_refilliTF) timerrr pipelinehgetexecutefloatminhsetexpire)rrrrrnow bucket_keybucket_size_to_userefill_rate_to_usepipecurrent_tokensrelapsed refill_amounts rcheck_and_consumezRateLimiter.check_and_consumes;iik!#' -8,C[IYIY,7,C[IYIY  ))+ *h' *m,&*lln#   !/NK">2N ,K #"44 /-1OP V # f $N$$--/D IIj(N ; IIj- 5 KK D ) LLNr)NN) __name__ __module__ __qualname____doc__rstrintrboolr*rrrrsC/C 3S3#3d 3hmptht3AE3rr)rrapp.core.configrr rr3rrr5s ( >;;r