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__pycache__
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Editing: controller.cpython-37.pyc
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NTc C s4 |d krt � n|| _|| _|p"t� | _|p,d| _d S )N)�� �� i, i- )r �cache� cache_etagsr � serializer�cacheable_status_codes)�selfr r r � status_codesr r r �__init__" s zCacheController.__init__c C sh t |�\}}}}}|r|s&td| ��|�� }|�� }|s>d}|rPd�||g�pR|}|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 | � |�S )N)r) )r! r r r r � cache_url> s zCacheController.cache_urlc C s* t dft dft dfddddddddt dfd� }|�d|�dd��}i }x�|�d�D ]�}|�� s`qR|�d d �}|d �� }y|| \}} W n" tk r� t�d |� wRY nX |r�| s�d ||< |rRy||d �� �||< W qR tk r� | r�t�d |� Y qR tk �r t�d||j � Y qRX qRW |S )NTF)NF) zmax-agez max-stalez 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) �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 s0 | � |j�}t�d|� | �|j�}d|kr:t�d� dS d|kr\|d dkr\t�d� dS | j�|�}|dkr~t�d � dS | j� ||�}|s�t� d � dS |j d kr�d }t�|� |S t |j�}|r�d |kr�d|kr�t�d� | j� |� t�d� dS t�� }t�t|d ��} td|| �} t�d| � | �|�} d} d| k�r^| d } t�d| � nDd|k�r�t|d �} | dk �r�t�| �| }td|�} t�d| � d|k�r�|d } t�d| � d|k�r�|d }| |7 } t�d| � | | k�r t�d� t�d| | � |S d|k�r,t�d� | j� |� dS )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* �urlr5 r6 rC r: r r1 r �loads�warning�statusr �delete�time�calendar�timegmr �max)r �requestr* �cc� cache_data�resp�msgr: �nowrD � current_age�resp_cc�freshness_lifetimerF � expire_time� min_freshr r r �cached_requestx sv z CacheController.cached_requestc C s` | � |j�}| j�|| j�|��}i }|r\t|j�}d|krH|d |d< d|kr\|d |d< |S )NrE �ETagz If-None-Matchz last-modifiedz Last-ModifiedzIf-Modified-Since)r* rG r rH r r1 r r: )r rP r* rS � new_headersr: r r r �conditional_headers� s z#CacheController.conditional_headersc C s |p| j }|j|kr(t�d|j|� dS t|j�}|dk rfd|krf|d �� rft|d �t|�krfdS | � |j�}| � |�}| � |j �} t�d| � d} d|kr�d} t�d� d|kr�d} t�d � | r�| j � | �r�t�d � | j �| � | r�dS d |� d d �k�rt�d� dS | j�rLd|k�rLt�d� | j �| | jj|||d�� n�|jdk�r|t�d� | j �| | j�||�� n�d|k�r d|k�r�|d dk�r�t�d� | j �| | jj|||d�� n:d|k�r |d �r t�d� | j �| | jj|||d�� dS )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: *"rE zCaching due to etag)�bodyi- zCaching permanant redirectrD zmax-ager z'Caching b/c date exists and max-age > 0rF z Caching b/c of expires header)r rJ r5 r6 r r: �isdigitr0 �lenrC r* rG r r1 rK r �setr �dumps) r rP �responsera r r �response_headers�cc_reqrQ r* �no_storer r r �cache_response� s^ z CacheController.cache_responsec sv | � |j�}| j�|| j�|��}|s*|S dg� |j�t� fdd�|j� � D ��� d|_ | 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 s& | ] \}}|� � � kr||fV qd S )N)r )�.0�k�v)�excluded_headersr r � <genexpr>l s z9CacheController.update_cached_response.<locals>.<genexpr>r ) r* rG r rH r r1 r: �update�dict�itemsrJ rd re )r rP rf r* �cached_responser )rn r �update_cached_responseR s z&CacheController.update_cached_response)NTNN)NN) r9 � __module__� __qualname__�__doc__r � classmethodr) r* rC r[ r^ rj rt r r r r r s 6o [r )rw �logging�rerM rL � email.utilsr Z pip._vendor.requests.structuresr r r � serializer � getLoggerr9 r5 �compiler r �objectr r r r r �<module> s
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