g'!dZddlZddlmZddlmZmZddlmZm Z m Z m Z m Z ddl mZddlmZGdd eZGd d eZGd d eeZy)a Cache middleware. If enabled, each Django-powered page will be cached based on URL. The canonical way to enable cache middleware is to set ``UpdateCacheMiddleware`` as your first piece of middleware, and ``FetchFromCacheMiddleware`` as the last:: MIDDLEWARE = [ 'django.middleware.cache.UpdateCacheMiddleware', ... 'django.middleware.cache.FetchFromCacheMiddleware' ] This is counterintuitive, but correct: ``UpdateCacheMiddleware`` needs to run last during the response phase, which processes middleware bottom-up; ``FetchFromCacheMiddleware`` needs to run last during the request phase, which processes middleware top-down. The single-class ``CacheMiddleware`` can be used for some simple sites. However, if any other piece of middleware needs to affect the cache key, you'll need to use the two-part ``UpdateCacheMiddleware`` and ``FetchFromCacheMiddleware``. This'll most often happen when you're using Django's ``LocaleMiddleware``. More details about how the caching works: * Only GET or HEAD-requests with status code 200 are cached. * The number of seconds each page is stored for is set by the "max-age" section of the response's "Cache-Control" header, falling back to the CACHE_MIDDLEWARE_SECONDS setting if the section was not found. * This middleware expects that a HEAD request is answered with the same response headers exactly like the corresponding GET request. * When a hit occurs, a shallow copy of the original response object is returned from process_request. * Pages will be cached based on the contents of the request headers listed in the response's "Vary" header. * This middleware also sets ETag, Last-Modified, Expires and Cache-Control headers on the response object. N)settings)DEFAULT_CACHE_ALIAScaches) get_cache_key get_max_agehas_vary_headerlearn_cache_keypatch_response_headers)MiddlewareMixin)parse_http_date_safec>eZdZdZfdZedZdZdZxZ S)UpdateCacheMiddlewarea6 Response-phase cache middleware that updates the cache if the response is cacheable. Must be used as part of the two-part update/fetch cache middleware. UpdateCacheMiddleware must be the first piece of middleware in MIDDLEWARE so that it'll get called last during the response phase. ct||tj|_d|_tj |_tj|_ yN) super__init__rCACHE_MIDDLEWARE_SECONDS cache_timeout page_timeoutCACHE_MIDDLEWARE_KEY_PREFIX key_prefixCACHE_MIDDLEWARE_ALIAS cache_aliasself get_response __class__s U/var/www/skyplay_api_hub/venv/lib/python3.12/site-packages/django/middleware/cache.pyrzUpdateCacheMiddleware.__init__GsA &%>> ">>#::c(t|jSrrrrs rcachezUpdateCacheMiddleware.cacheNd&&''rc6t|dxr |jS)N_cache_update_cache)hasattrr&)rrequestresponses r_should_update_cachez*UpdateCacheMiddleware._should_update_cacheRsw 56V7;V;VVrcpj||s|S|js|jdvr|S|js|jrt |dr|Sd|j ddvr|Sj!t| jndk(r|St|r|jdk(rzt||jjt|d r-t|j r|j#fd |Sjj%||S) zSet the cache, if needed.)i0Cookieprivatez Cache-Controlrr,r#renderc>jj|Sr)r#set)r cache_keyrtimeouts rz8UpdateCacheMiddleware.process_response..~sdjjnnY7Cr)r* streaming status_codeCOOKIEScookiesrgetrrrr r rr#r'callabler1add_post_render_callbackr3)rr(r)r5r6s` @@rprocess_responsez&UpdateCacheMiddleware.process_responseUs)(((;O   !5!5Z!GO   (3O  _b9 9O## ?"(+G,,Ax1 x++s2'7DOO4::Ix*x/H11C  y(G<r) __name__ __module__ __qualname____doc__rpropertyr#r*r? __classcell__rs@rrr=s,;((W-rrc8eZdZdZfdZedZdZxZS)FetchFromCacheMiddlewarea! Request-phase cache middleware that fetches a page from the cache. Must be used as part of the two-part update/fetch cache middleware. FetchFromCacheMiddleware must be the last piece of middleware in MIDDLEWARE so that it'll get called last during the request phase. cxt||tj|_tj |_yr)rrrrrrrrs rrz!FetchFromCacheMiddleware.__init__s+ &">>#::rc(t|jSrr!r"s rr#zFetchFromCacheMiddleware.cacher$rc&|jdvrd|_yt||jd|j}|d|_y|jj |}|M|jdk(r>t||jd|j}|jj |}|d|_yt |x}Et|dx} 4ttj}||z }td ||z |d <d|_|S) zn Check whether the page is already cached and return the cached version if available. )GETHEADFNrLr0TrMExpiresrAge) methodr&rrr#r<rr inttimemax)rr(r5r)max_age_secondsexpires_timestamp now_timestampremaining_secondss rprocess_requestz(FetchFromCacheMiddleware.process_requests >> 0*/G '"'4??ET  *.G '::>>),  & 8%& Izz~~i0H  *.G ' +84 4O A!5hy6I!J J G  ,M 1M A !!_7H%HIHUO',#r) r@rArBrCrrDr#rXrErFs@rrHrHs&; ((%rrHc$eZdZdZdfd ZxZS)CacheMiddlewarez Cache middleware that provides basic behavior for many simple sites. Also used as the hook point for the cache decorator, which is generated using the decorator-from-middleware utility. c t|| |d}|d}||_ |d}|t}||_|||_||_y#t$rY1wxYw#t$rY+wxYw)Nrr)rrrKeyErrorrrrr)rrrrkwargsrrrs rrzCacheMiddleware.__init__s &   -J! (DO  /K"1 *D   $!.D (      s"AA AA A#"A#)NN)r@rArBrCrrErFs@rrZrZs))rrZ)rCrR django.confrdjango.core.cacherrdjango.utils.cacherrrr r django.utils.deprecationr django.utils.httpr rrHrZr/rrrdsT+Z 952EOEP77t )+-E )r