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편집 파일: controller.pyc
� ��abc @ 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 � Z d e f d � � YZ d S( s7 The httplib2 algorithms ported for use with requests. i����N( t parsedate_tz( t CaseInsensitiveDicti ( t DictCache( t Serializers9 ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?c C s< t j | � j � } | d | d | d | d | d f S( s� Parses a URI using the regex given in Appendix B of RFC 3986. (scheme, authority, path, query, fragment) = parse_uri(uri) i i i i i ( t URIt matcht groups( t uriR ( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt parse_uri s t CacheControllerc B sn e Z d Z d e d d � Z e d � � Z e d � � Z d � Z d � Z d � Z d d � Z d � Z RS( s9 An interface to see if request should cached or not. c C s1 | p t � | _ | | _ | p' t � | _ d S( N( R t cachet cache_etagsR t serializer( t selfR R R ( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt __init__! s c C s� t | � \ } } } } } | s) | r< t d | � � n | j � } | j � } | sc d } n | r~ d j | | g � p� | } | d | | } | S( s4 Normalize the URL to create a safe key for the caches( Only absolute URIs are allowed. uri = %st /t ?s ://( R t Exceptiont lowert join( t clsR t schemet authorityt patht queryt fragmentt request_urit defrag_uri( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt _urlnorm& s !c C s | j | � S( N( R ( R R ( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt cache_url: s c C s� i } d } d | k r! d } n | | k r� | | j d � } g | D]R } d | j d � k rG t g | j d d � D] } | j � j � ^ qx � ^ qG } g | D]3 } d | j d � k r� | j � j � d f ^ q� } t | | � } n | S( sz Parse the cache control headers returning a dictionary with values for the different directives. s cache-controls Cache-Controlt ,i����t =i ( t splitt findt tuplet stripR t dict( R t headerst retvalt cc_headert partst partt xt parts_with_argst namet parts_wo_args( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt parse_cache_control> s \=c C s^ | j | j � } t j d | � | j | j � } d | k rQ t j d � t Sd | k r~ | d d k r~ t j d � t S| j j | � } | d k r� t j d � t S| j j | | � } | s� t j d � t S| j d k r� d } t j | � | St | j � } | s!d | k r^d | k rMt j d � | j j | � n t j d � t St j � } t j t | d � � } t d | | � } t j d | � | j | � } d } d | k r�| d j � r�t | d � } t j d | � n` d | k rZt | d � } | d k rZt j | � | } t d | � } t j d | � qZn d | k r�y$ t | d � } t j d | � Wq�t k r�d } q�Xn d | k r�y t | d � } Wn t k r�d } n X| | 7} t j d | � n | | k r.t j d � t j d | | � | Sd | k rZt j d � | j j | � n t S( se Return a cached response if it exists in the cache, otherwise return False. s Looking up "%s" in the caches no-caches- Request header has "no-cache", cache bypasseds max-agei s1 Request header has "max_age" as 0, cache bypasseds No cache entry availables1 Cache entry deserialization failed, entry ignoredi- sV Returning cached "301 Moved Permanently" response (ignoring date and etag information)t datet etags( Purging cached response: no date or etags! Ignoring cached response: no dates Current age based on date: %is# Freshness lifetime from max-age: %it expiress# Freshness lifetime from expires: %is+ Freshness lifetime from request max-age: %is min-freshs' Adjusted current age from min-fresh: %is2 The response is "fresh", returning cached responses %i > %is4 The cached response is "stale" with no etag, purgingN( R t urlt loggert debugR. R% t FalseR t gett NoneR t loadst warningt statusR t deletet timet calendart timegmR t maxt isdigitt intt ValueError( R t requestR t cct cache_datat respt msgR% t nowR/ t current_aget resp_cct freshness_lifetimeR1 t expire_timet min_fresh( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt cached_requestV s� c C s� | j | j � } | j j | | j j | � � } i } | r� t | j � } d | k rk | d | d <n d | k r� | d | d <q� n | S( NR0 t ETags If-None-Matchs last-modifieds Last-Modifieds If-Modified-Since( R R2 R R8 R R6 R R% ( R RC R RF t new_headersR% ( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt conditional_headers� s ! c C s� d d d d g } | j | k r; 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 | � t } | j d � r t } t j d � n | j d � r%t } t j d � n | r]| j j | � r]t j d � | j j | � n | 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�| rm| j d � rm| d j � r�t | d � d k r�t j d � | j j | | j j | | d | �� q�q�d | k r�| d r�t j d � | j j | | j j | | d | �� q�q�n d S( sc Algorithm for caching requests. This assumes a requests Response object. i� i� i, i- s Status code %s not in %sNs content-lengths& Updating cache with response from "%s"s no-stores Response header has "no-store"s Request header has "no-store"s0 Purging existing cache entry to honor "no-store"R0 s Caching due to etagt bodys Caching permanant redirectR/ s max-agei s' Caching b/c date exists and max-age > 0R1 s Caching b/c of expires header( R: R3 R4 R R% R7 R@ RA t lenR. R R2 R5 R6 t TrueR R; R t setR t dumps( R RC t responseRR t cacheable_status_codest response_headerst cc_reqRD R t no_store( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt cache_response� sd & " c s� | j | j � } | j j | | j j | � � } | s= | Sd g � | j j t � f d � | j j � D� � � d | _ | j j | | j j | | � � | S( s� 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. s content-lengthc 3 s3 | ]) \ } } | j � � k r | | f Vq d S( N( R ( t .0t kt v( t excluded_headers( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pys <genexpr>T s i� ( R R2 R R8 R R6 R% t updateR$ t itemsR: RU RV ( R RC RW R t cached_response( ( R` sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt update_cached_response6 s & N( t __name__t __module__t __doc__R7 RT R t classmethodR R R. RN RQ R\ Rd ( ( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyR s y W( Rg t loggingt reR= R< t email.utilsR t pip._vendor.requests.structuresR R R t serializeR t getLoggerRe R3 t compileR R t objectR ( ( ( sG /usr/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.pyt <module> s