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��ReE7 � @ s� d Z d d l Z d d l Z d d l Z d d l Z d d l m Z d d l m Z d d l m Z d d l m Z e j e � Z e j d � Z d d � Z Gd d � d e � Z d S) z7 The httplib2 algorithms ported for use with requests. � N)� parsedate_tz)�CaseInsensitiveDict� )� DictCache)� Serializerz9^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?c C s< t j | � j � } | d | d | d | d | d f S)z�Parses a URI using the regex given in Appendix B of RFC 3986. (scheme, authority, path, query, fragment) = parse_uri(uri) r � � � � )�URI�match�groups)�urir � r ��/builddir/build/BUILDROOT/alt-python35-pip-20.2.4-5.el8.x86_64/opt/alt/python35/lib/python3.5/site-packages/pip/_vendor/cachecontrol/controller.py� parse_uri s r c @ s� e Z d Z d Z d d d d d d � Z e d d � � Z e d d � � Z d d � Z d d � Z d d � Z d d d d � Z d d � Z d S)�CacheControllerz9An interface to see if request should cached or not. NTc C sL | d k r t � n | | _ | | _ | p3 t � | _ | pB d | _ d S)N�� �� �, �- )r r r r )r �cache� cache_etagsr � serializer�cacheable_status_codes)�selfr r r � status_codesr r r �__init__" s zCacheController.__init__c C s� t | � \ } } } } } | s) | r9 t d | � � | j � } | j � } | s] d } | rx d j | | g � p{ | } | d | | } | S)z4Normalize the URL to create a safe key for the cachez(Only absolute URIs are allowed. uri = %s�/�?z://)r � Exception�lower�join) �clsr �scheme� authority�path�query�fragment� request_uri� defrag_urir r r �_urlnorm* s !zCacheController._urlnormc C s | j | � S)N)r+ )r# r r r r � cache_url> s zCacheController.cache_urlc C s� d t d f d t d f d t d f d d d d d d d d d d d d d d d d d t d f i } | j d | j d d � � } i } x| j d � D]} | j � s� q� | j d d � } | d j � } y | | \ } } Wn% t k r t j d | � w� Yn X| s| r%d | | <| r� y | | d j � � | | <Wq� t k rs| rot j d | � Yq� t k r�t j d | | j � Yq� Xq� W| S)!Nzmax-ageTz max-staleFz min-freshzno-cachezno-storez no-transformzonly-if-cachedzmust-revalidate�public�privatezproxy-revalidatezs-maxagez cache-controlz Cache-Control� �,�=r r z,Ignoring unknown cache-control directive: %sz-Missing value for cache-control directive: %sz8Invalid value for cache-control directive %s, must be %s)NF)NF)NF)NF)NF)NF)NF)NF) �int�get�split�strip�KeyError�logger�debug� IndexError� ValueError�__name__) r �headers�known_directives� cc_headers�retval� cc_directive�parts� directive�typ�requiredr r r �parse_cache_controlB sP z#CacheController.parse_cache_controlc C s� | j | j � } t j d | � | j | j � } d | k rQ t j d � d Sd | k r~ | d d k r~ t j d � d S| j j | � } | d k r� t j d � d S| j j | | � } | s� t j d � d S| j d k r� d } t j | � | St | j � } | s!d | k r[d | k rJt j d � | j j | � t j d � d St j � } t j t | d � � } t d | | � } t j d | � | j | � } d } d | k r�| d } t j d | � nZ d | k r;t | d � } | d k r;t j | � | } t d | � } t j d | � d | k ra| d } t j d | � d | k r�| d } | | 7} t j d | � | | k r�t j d � t j d | | � | Sd | k r�t j d � | j j | � d S)ze Return a cached response if it exists in the cache, otherwise return False. z Looking up "%s" in the cachezno-cachez-Request header has "no-cache", cache bypassedFzmax-ager z1Request header has "max_age" as 0, cache bypassedNzNo cache entry availablez1Cache entry deserialization failed, entry ignoredi- zVReturning cached "301 Moved Permanently" response (ignoring date and etag information)�date�etagz(Purging cached response: no date or etagz!Ignoring cached response: no datez Current age based on date: %iz#Freshness lifetime from max-age: %i�expiresz#Freshness lifetime from expires: %iz+Freshness lifetime from request max-age: %iz min-freshz'Adjusted current age from min-fresh: %iz2The response is "fresh", returning cached responsez%i > %iz4The cached response is "stale" with no etag, purging)r, �urlr7 r8 rE r< r r3 r �loads�warning�statusr �delete�time�calendar�timegmr �max)r �requestr, �cc� cache_data�resp�msgr< �nowrF � current_age�resp_cc�freshness_lifetimerH � expire_time� min_freshr r r �cached_requestx sv z CacheController.cached_requestc C s� | j | j � } | j j | | j j | � � } i } | r� t | j � } d | k rh | d | d <d | k r� | d | d <| S)NrG �ETagz If-None-Matchz last-modifiedz Last-ModifiedzIf-Modified-Since)r, rI r rJ r r3 r r< )r rR r, rU � new_headersr< r r r �conditional_headers� s ! z#CacheController.conditional_headersc C s� | p | j } | j | k r8 t j d | j | � d St | j � } | d k r� d | k r� | d j � r� t | d � t | � k r� d S| j | j � } | j | � } | j | j � } t j d | � d } d | k r� d } t j d � d | k rd } t j d � | rK| j j | � rKt j d � | j j | � | rUd Sd | j d d � k r~t j d � d S| j r�d | k r�t j d � | j j | | j j | | d | �� n� | j d k r t j d � | j j | | j j | | � � n� d | k r�d | k rl| d d k rlt j d � | j j | | j j | | d | �� nK d | k r�| d r�t j d � | j j | | j j | | d | �� d S)zc Algorithm for caching requests. This assumes a requests Response object. zStatus code %s not in %sNzcontent-lengthz&Updating cache with response from "%s"Fzno-storeTz Response header has "no-store"z Request header has "no-store"z0Purging existing cache entry to honor "no-store"�*�varyr/ z Response header has "Vary: *"rG zCaching due to etag�bodyi- zCaching permanant redirectrF zmax-ager z'Caching b/c date exists and max-age > 0rH z Caching b/c of expires header)r rL r7 r8 r r< �isdigitr2 �lenrE r, rI r r3 rM r �setr �dumps) r rR �responserc r r �response_headers�cc_reqrS r, �no_storer r r �cache_response� s^ " % " z CacheController.cache_responsec s� | j | j � } | j j | | j j | � � } | s= | Sd g � | j j t � f d d � | j j � D� � � d | _ | j j | | j j | | � � | S)z�On a 304 we will get a new set of headers that we want to update our cached value with, assuming we have one. This should only ever be called when we've sent an ETag and gotten a 304 as the response. zcontent-lengthc 3 s3 | ]) \ } } | j � � k r | | f Vq d S)N)r! )�.0�k�v)�excluded_headersr r � <genexpr>l s z9CacheController.update_cached_response.<locals>.<genexpr>r ) r, rI r rJ r r3 r< �update�dict�itemsrL rf rg )r rR rh r, �cached_responser )rp r �update_cached_responseR s ! "z&CacheController.update_cached_response) r; � __module__� __qualname__�__doc__r � classmethodr+ r, rE r] r` rl rv r r r r r s 6 o [r )ry �logging�rerO rN � email.utilsr Z pip._vendor.requests.structuresr r r � serializer � getLoggerr; r7 �compiler r �objectr r r r r �<module> s
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