U
    _                     @   s\   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
 G dd deZdS )	    N)HTTPAdapter   )CacheController)	DictCache)CallbackFileWrapperc                       sN   e Zd ZddhZd fdd	Zd fdd	Zd fd
d	Z fddZ  ZS )CacheControlAdapterPUTDELETENTc           
         sT   t t| j|| |d kr t n|| _|| _|p2d| _|p<t}	|	| j||d| _d S )N)GET)cache_etags
serializer)	superr   __init__r   cache	heuristiccacheable_methodsr   
controller)
selfr   r   controller_classr   r   r   argskwZcontroller_factory	__class__ S/home/toby/toby_env/lib/python3.8/site-packages/pip/_vendor/cachecontrol/adapter.pyr      s    
  zCacheControlAdapter.__init__c                    s   |p| j }|j|krhz| j|}W n tjk
r>   d}Y nX |rT| j||ddS |j| j	| t
t| j|f|}|S )z
        Send a request. Use the request information to see if it
        exists in the cache and cache the response if we need to and can.
        NT)
from_cache)r   methodr   Zcached_requestzliberrorbuild_responseheadersupdateZconditional_headersr   r   send)r   requestr   r   	cacheablecached_responserespr   r   r   r"   $   s    


zCacheControlAdapter.sendFc           
         s  |p| j }|s|j|kr| jr*| j|}|jdkrh| j||}||k	rNd}|jdd |  |}n\|jdkr| j	|| nBt
|jt| jj	|||_|jr|j  fdd}t|||_tt| ||}|j| jkr|jr| j|j}	| j|	 ||_|S )z
        Build a response by making a request or using the cache.

        This will end up calling send and returning a potentially
        cached response
        i0  TF)decode_contenti-  c                    s      | j dkr| j  d S )Nr   )
chunk_left_fp_closer   Zsuper_update_chunk_lengthr   r   _update_chunk_lengthn   s    
z@CacheControlAdapter.build_response.<locals>._update_chunk_length)r   r   r   Zapplystatusr   Zupdate_cached_responsereadrelease_connZcache_responser   r)   	functoolspartialchunkedr-   types
MethodTyper   r   r   invalidating_methodsok	cache_urlurlr   deleter   )
r   r#   responser   r   r$   r%   r-   r&   r8   r   r,   r   r   9   sJ    	

 
   z"CacheControlAdapter.build_responsec                    s   | j   tt|   d S )N)r   closer   r   r+   r   r   r   r<      s    
zCacheControlAdapter.close)NTNNNN)N)FN)	__name__
__module____qualname__r6   r   r"   r   r<   __classcell__r   r   r   r   r      s            Jr   )r4   r1   r   Zpip._vendor.requests.adaptersr   r   r   r   r   Zfilewrapperr   r   r   r   r   r   <module>   s   