
    (ph                         S r SSKJr  SSKJrJr  SSKJrJrJ	r	J
r
Jr  SSKJr   " S S\5      r " S S	\5      r " S
 S\\5      rg)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 counter-intuitive, 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.

    )settings)DEFAULT_CACHE_ALIAScaches)get_cache_keyget_max_agehas_vary_headerlearn_cache_keypatch_response_headers)MiddlewareMixinc                   H   ^  \ rS rSrSrU 4S jr\S 5       rS rS r	Sr
U =r$ )UpdateCacheMiddleware:   a  
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.
c                    > [         TU ]  U5        [        R                  U l        S U l        [        R                  U l        [        R                  U l	        g N)
super__init__r   CACHE_MIDDLEWARE_SECONDScache_timeoutpage_timeoutCACHE_MIDDLEWARE_KEY_PREFIX
key_prefixCACHE_MIDDLEWARE_ALIAScache_aliasselfget_response	__class__s     J/var/www/html/venv/lib/python3.13/site-packages/django/middleware/cache.pyr   UpdateCacheMiddleware.__init__D   sA    &%>> ">>#::    c                 (    [         U R                     $ r   r   r   r   s    r   cacheUpdateCacheMiddleware.cacheK       d&&''r    c                 @    [        US5      =(       a    UR                  $ )N_cache_update_cache)hasattrr(   )r   requestresponses      r   _should_update_cache*UpdateCacheMiddleware._should_update_cacheO   s    w 56V7;V;VVr    c                   ^ ^^ T R                  X5      (       d  U$ UR                  (       d  UR                  S;  a  U$ UR                  (       d$  UR                  (       a  [        US5      (       a  U$ SUR                  SS5      ;   a  U$ T R                  mTc#  [        U5      mTc  T R                  mOTS:X  a  U$ [        UT5        T(       a  UR                  S:X  a  [        XTT R                  T R                  S9m[        US	5      (       a3  [        UR                   5      (       a  UR#                  UU U4S
 j5        U$ T R                  R%                  TUT5        U$ )zSet the cache, if needed.)   i0  CookieprivatezCache-Control r   r/   r$   renderc                 >   > TR                   R                  TU T5      $ r   )r$   set)r	cache_keyr   timeouts    r   <lambda>8UpdateCacheMiddleware.process_response.<locals>.<lambda>{   s    djjnnY7Cr    )r,   	streamingstatus_codeCOOKIEScookiesr   getr   r   r   r
   r	   r   r$   r)   callabler4   add_post_render_callbackr6   )r   r*   r+   r8   r9   s   `  @@r   process_response&UpdateCacheMiddleware.process_responseR   s1   ((;;O!5!5Z!GO
   (33O _b99O ##? "(+G,,Ax1x++s2'7DOO4::I x**x/H/H11C
  

y(G<r    r   r   r   r   )__name__
__module____qualname____firstlineno____doc__r   propertyr$   r,   rC   __static_attributes____classcell__r   s   @r   r   r   :   s1    ; ( (W- -r    r   c                   B   ^  \ rS rSrSrU 4S jr\S 5       rS rSr	U =r
$ )FetchFromCacheMiddleware   a  
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.
c                 x   > [         TU ]  U5        [        R                  U l        [        R
                  U l        g r   )r   r   r   r   r   r   r   r   s     r   r   !FetchFromCacheMiddleware.__init__   s+    &">>#::r    c                 (    [         U R                     $ r   r"   r#   s    r   r$   FetchFromCacheMiddleware.cache   r&   r    c                 ~   UR                   S;  a  SUl        g[        XR                  SU R                  S9nUc  SUl        gU R                  R                  U5      nUcJ  UR                   S:X  a:  [        XR                  SU R                  S9nU R                  R                  U5      nUc  SUl        gSUl        U$ )zV
Check whether the page is already cached and return the cached
version if available.
)GETHEADFNrW   r3   TrX   )methodr(   r   r   r$   r@   )r   r*   r8   r+   s       r   process_request(FetchFromCacheMiddleware.process_request   s    
 >>0*/G' "'??ET	*.G'::>>),& 8%&

I zz~~i0H*.G' ',#r    )r   r   )rF   rG   rH   rI   rJ   r   rK   r$   rZ   rL   rM   rN   s   @r   rP   rP      s+    ;
 ( ( r    rP   c                   0   ^  \ rS rSrSrSU 4S jjrSrU =r$ )CacheMiddleware   z
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U ]  U5         US   nUc  SnXPl         US   nUc  [        nX`l        Ub  X l        X0l        g ! [         a     N1f = f! [         a     N,f = f)Nr    r   )r   r   r   KeyErrorr   r   r   r   )r   r   r   r   kwargsr   r   r   s          r   r   CacheMiddleware.__init__   s    &	-J!
(O	 /K"1* $!.(  		  		s"   A A 
AA
A$#A$rE   )NN)rF   rG   rH   rI   rJ   r   rL   rM   rN   s   @r   r]   r]      s    ) )r    r]   N)rJ   django.confr   django.core.cacher   r   django.utils.cacher   r   r   r	   r
   django.utils.deprecationr   r   rP   r]   r2   r    r   <module>rh      sN   +Z ! 9  5EO EP. .b )+-E  )r    