U M}g@spddlmZddlmZddlmZddZGdddeeZGd d d eeZGd d d eZ d dl m Z dS)) annotations)ImmutableDictMixin)UpdateDictMixincs2tfddfddfdddS)zReturn a new property object for a cache header. Useful if you want to add support for a cache extension in a subclass. .. versionchanged:: 2.0 Renamed from ``cache_property``. cs|SN)_get_cache_valuexemptykeytypeI/tmp/pip-unpacked-wheel-s46b54kd/werkzeug/datastructures/cache_control.pyz(cache_control_property..cs||Sr)_set_cache_value)r v)r r rrrrcs |Sr)_del_cache_valuer)r rrrrz accessor for )property)r r r rr rcache_control_propertys   rc@seZdZdZedddZeddeZeddeZ edddZ dd d Z d d Z ddZ ddZddZddZddZeeZdS) _CacheControlaSubclass of a dict that stores values for a Cache-Control header. It has accessors for all the cache-control directives specified in RFC 2616. The class does not differentiate between request and response directives. Because the cache-control directives in the HTTP header use dashes the python descriptors use underscores for that. To get a header of the :class:`CacheControl` object again you can convert the object into a string or call the :meth:`to_header` method. If you plan to subclass it and add your own items have a look at the sourcecode for that class. .. versionchanged:: 2.1.0 Setting int properties such as ``max_age`` will convert the value to an int. .. versionchanged:: 0.4 Setting `no_cache` or `private` to boolean `True` will set the implicit none-value which is ``*``: >>> cc = ResponseCacheControl() >>> cc.no_cache = True >>> cc >>> cc.no_cache '*' >>> cc.no_cache = None >>> cc In versions before 0.5 the behavior documented here affected the now no longer existing `CacheControl` class. zno-cache*Nzno-storezmax-agez no-transformrcCs$t||p d||_|dk |_dS)Nr)dict__init__ on_updateprovided)selfvaluesrrrrr?sz_CacheControl.__init__cCs^|tkr||kS||krZ||}|dkr,|S|dk rVz ||}Wntk rTYnX|SdS+Used internally by the accessor properties.N)bool ValueError)rr r r valuerrrrDs z_CacheControl._get_cache_valuecCsn|tkr$|rd||<qj||dnF|dkr:||dn0|dkrLd||<n|dk rb||||<n|||<dS)r!NT)r"pop)rr r$r rrrrTs  z_CacheControl._set_cache_valuecCs||kr||=dSr r)rr rrrrfsz_CacheControl._del_cache_valuecCs t|S)z6Convert the stored values into a cache control header.)httpZ dump_headerrrrr to_headerksz_CacheControl.to_headercCs|Sr)r(r'rrr__str__osz_CacheControl.__str__cCs4dddt|D}dt|jd|dS)N css |]\}}|d|VqdS)=Nr).0krrrr ssz)_CacheControl.__repr__..<>)joinsorteditemsr __name__)rZkv_strrrr__repr__rsz_CacheControl.__repr__)rN)r4 __module__ __qualname____doc__rno_cacher"no_storeintZmax_ageZ no_transformrrrrr(r)r5 staticmethodZcache_propertyrrrrrs#     rc@s4eZdZdZeddeZeddeZeddeZ dS)RequestCacheControlaA cache control for requests. This is immutable and gives access to all the request-relevant cache control headers. To get a header of the :class:`RequestCacheControl` object again you can convert the object into a string or call the :meth:`to_header` method. If you plan to subclass it and add your own items have a look at the sourcecode for that class. .. versionchanged:: 2.1.0 Setting int properties such as ``max_age`` will convert the value to an int. .. versionadded:: 0.5 In previous versions a `CacheControl` class existed that was used both for request and response. z max-stalerz min-freshzonly-if-cachedN) r4r6r7r8rr;Z max_stale min_freshr"Zonly_if_cachedrrrrr=ys  r=c@sXeZdZdZeddeZedddZeddeZeddeZ edde Z ed deZ dS) ResponseCacheControlaA cache control for responses. Unlike :class:`RequestCacheControl` this is mutable and gives access to response-relevant cache control headers. To get a header of the :class:`ResponseCacheControl` object again you can convert the object into a string or call the :meth:`to_header` method. If you plan to subclass it and add your own items have a look at the sourcecode for that class. .. versionchanged:: 2.1.1 ``s_maxage`` converts the value to an int. .. versionchanged:: 2.1.0 Setting int properties such as ``max_age`` will convert the value to an int. .. versionadded:: 0.5 In previous versions a `CacheControl` class existed that was used both for request and response. publicNprivaterzmust-revalidatezproxy-revalidatezs-maxage immutable) r4r6r7r8rr"r@rAZmust_revalidateZproxy_revalidater;Zs_maxagerBrrrrr?s     r?)r&N) __future__rZmixinsrrrrrr=r?r&rrrrs   c