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3
yiGC                 @   s   d dl mZ d dlZd dlZd dlZddlmZmZ ddlm	Z	m
Z
 ddlmZ ddlmZmZmZ ddlmZ dd	lmZ dd
lmZ ddlmZ ddlmZ dddgZejeZd6Zd7Zej d/eZ!d0d1 Z"ej#e"e!ej#e"e!d2Z$e	e
d2Z%G d3d deZ&G d4d de&Z'd5d Z(dS )8    )absolute_importN   )HTTPHeaderDictRecentlyUsedContainer)HTTPConnectionPoolHTTPSConnectionPool)port_by_scheme)LocationValueErrorMaxRetryErrorProxySchemeUnknown)six)urljoin)RequestMethods)	parse_url)RetryPoolManagerProxyManagerproxy_from_urlkey_file	cert_file	cert_reqsca_certsssl_versionca_cert_dirssl_context
key_schemekey_hostkey_portkey_timeoutkey_retries
key_strict	key_blockkey_source_addresskey_key_filekey_cert_filekey_cert_reqskey_ca_certskey_ssl_versionkey_ca_cert_dirkey_ssl_contextkey_maxsizekey_headers
key__proxykey__proxy_headerskey_socket_optionskey__socks_optionskey_assert_hostnamekey_assert_fingerprintkey_server_hostnamePoolKeyc             C   s   |j  }|d j |d< |d j |d< x4d	D ],}||kr.|| dk	r.t|| j ||< q.W |jd}|dk	r|t||d< x&t|j D ]}|j||d| < qW x| j	D ]}||krd||< qW | f |S )
a  
    Create a pool key out of a request context dictionary.

    According to RFC 3986, both the scheme and host are case-insensitive.
    Therefore, this function normalizes both before constructing the pool
    key for an HTTPS request. If you wish to change this behaviour, provide
    alternate callables to ``key_fn_by_scheme``.

    :param key_class:
        The class to use when constructing the key. This should be a namedtuple
        with the ``scheme`` and ``host`` keys at a minimum.
    :type  key_class: namedtuple
    :param request_context:
        A dictionary-like object that contain the context for a request.
    :type  request_context: dict

    :return: A namedtuple that can be used as a connection pool key.
    :rtype:  PoolKey
    schemehostheaders_proxy_headers_socks_optionsNZsocket_optionsZkey_)r6   r7   r8   )
copylower	frozensetitemsgettuplelistkeyspop_fields)Z	key_classrequest_contextcontextkeyZsocket_optsZfield rF   !/usr/lib/python3.6/poolmanager.py_default_key_normalizer;   s    

rH   )httphttpsc               @   sx   e Zd ZdZdZdddZdd Zdd	 Zdd
dZdd Z	dddZ
dd ZdddZd ddZdd Zd!ddZdS )"r   a$  
    Allows for arbitrary requests while transparently keeping track of
    necessary connection pools for you.

    :param num_pools:
        Number of connection pools to cache before discarding the least
        recently used pool.

    :param headers:
        Headers to include with all requests, unless other headers are given
        explicitly.

    :param \**connection_pool_kw:
        Additional parameters are used to create fresh
        :class:`urllib3.connectionpool.ConnectionPool` instances.

    Example::

        >>> manager = PoolManager(num_pools=2)
        >>> r = manager.request('GET', 'http://google.com/')
        >>> r = manager.request('GET', 'http://google.com/mail')
        >>> r = manager.request('GET', 'http://yahoo.com/')
        >>> len(manager.pools)
        2

    N
   c             K   s8   t j| | || _t|dd d| _t| _tj | _d S )Nc             S   s   | j  S )N)close)prF   rF   rG   <lambda>   s    z&PoolManager.__init__.<locals>.<lambda>)Zdispose_func)r   __init__connection_pool_kwr   poolspool_classes_by_schemekey_fn_by_schemer9   )self	num_poolsr6   rP   rF   rF   rG   rO      s    zPoolManager.__init__c             C   s   | S )NrF   )rT   rF   rF   rG   	__enter__   s    zPoolManager.__enter__c             C   s   | j   dS )NF)clear)rT   exc_typeZexc_valZexc_tbrF   rF   rG   __exit__   s    zPoolManager.__exit__c             C   sf   | j | }|dkr| jj }xdD ]}|j|d q"W |dkrXxtD ]}|j|d qDW |||f|S )a  
        Create a new :class:`ConnectionPool` based on host, port, scheme, and
        any additional pool keyword arguments.

        If ``request_context`` is provided, it is provided as keyword arguments
        to the pool class used. This method is used to actually create the
        connection pools handed out by :meth:`connection_from_url` and
        companion methods. It is intended to be overridden for customization.
        Nr4   r5   portrI   )r4   r5   rZ   )rR   rP   r9   rA   SSL_KEYWORDS)rT   r4   r5   rZ   rC   Zpool_clsrE   kwrF   rF   rG   	_new_pool   s    




zPoolManager._new_poolc             C   s   | j j  dS )z
        Empty our store of pools and direct them all to close.

        This will not affect in-flight connections, but they will not be
        re-used after completion.
        N)rQ   rW   )rT   rF   rF   rG   rW      s    zPoolManager.clearrI   c             C   sT   |st d| j|}|pd|d< |s:tj|d j d}||d< ||d< | j|S )a  
        Get a :class:`ConnectionPool` based on the host, port, and scheme.

        If ``port`` isn't given, it will be derived from the ``scheme`` using
        ``urllib3.connectionpool.port_by_scheme``. If ``pool_kwargs`` is
        provided, it is merged with the instance's ``connection_pool_kw``
        variable and used to create the new connection pool, if one is
        needed.
        zNo host specified.rI   r4   P   rZ   r5   )r	   _merge_pool_kwargsr   r=   r:   connection_from_context)rT   r5   rZ   r4   pool_kwargsrC   rF   rF   rG   connection_from_host   s    
z PoolManager.connection_from_hostc             C   s,   |d j  }| j| }||}| j||dS )z
        Get a :class:`ConnectionPool` based on the request context.

        ``request_context`` must at least contain the ``scheme`` key and its
        value must be a key in ``key_fn_by_scheme`` instance variable.
        r4   )rC   )r:   rS   connection_from_pool_key)rT   rC   r4   Zpool_key_constructorpool_keyrF   rF   rG   r`      s    
z#PoolManager.connection_from_contextc             C   s`   | j jN | j j|}|r|S |d }|d }|d }| j||||d}|| j |< W dQ R X |S )z
        Get a :class:`ConnectionPool` based on the provided pool key.

        ``pool_key`` should be a namedtuple that only contains immutable
        objects. At a minimum it must have the ``scheme``, ``host``, and
        ``port`` fields.
        r4   r5   rZ   )rC   N)rQ   lockr=   r]   )rT   rd   rC   Zpoolr4   r5   rZ   rF   rF   rG   rc      s    
z$PoolManager.connection_from_pool_keyc             C   s    t |}| j|j|j|j|dS )a  
        Similar to :func:`urllib3.connectionpool.connection_from_url`.

        If ``pool_kwargs`` is not provided and a new pool needs to be
        constructed, ``self.connection_pool_kw`` is used to initialize
        the :class:`urllib3.connectionpool.ConnectionPool`. If ``pool_kwargs``
        is provided, it is used instead. Note that if a new pool does not
        need to be created for the request, the provided ``pool_kwargs`` are
        not used.
        )rZ   r4   ra   )r   rb   r5   rZ   r4   )rT   urlra   urF   rF   rG   connection_from_url  s    zPoolManager.connection_from_urlc             C   sZ   | j j }|rVxF|j D ]:\}}|dkrJy
||= W qR tk
rF   Y qRX q|||< qW |S )a  
        Merge a dictionary of override values for self.connection_pool_kw.

        This does not modify self.connection_pool_kw and returns a new dict.
        Any keys in the override dictionary with a value of ``None`` are
        removed from the merged dictionary.
        N)rP   r9   r<   KeyError)rT   overrideZbase_pool_kwargsrE   valuerF   rF   rG   r_     s    

zPoolManager._merge_pool_kwargsTc             K   s  t |}| j|j|j|jd}d|d< d|d< d|krD| jj |d< | jdk	rj|jdkrj|j||f|}n|j||j	f|}|o|j
 }|s|S t||}|jdkrd	}d|d
< t|d j |d< |jd}	t|	tstj|	|d}	|	jo|j| r<ttj|d }
x.|
D ]&}|j |	jkr|d j|d qW y|	j||||d}	W n  tk
rr   |	jrn |S X |	|d< ||d< tjd|| | j||f|S )a]  
        Same as :meth:`urllib3.connectionpool.HTTPConnectionPool.urlopen`
        with custom cross-host redirect logic and only sends the request-uri
        portion of the ``url``.

        The given ``url`` parameter must be absolute, such that an appropriate
        :class:`urllib3.connectionpool.ConnectionPool` can be chosen for it.
        )rZ   r4   FZassert_same_hostredirectr6   NrI   i/  ZGETZbodyretries)rl   )responseZ_poolzRedirecting %s -> %s)r   rb   r5   rZ   r4   r6   r9   proxyurlopenZrequest_uriZget_redirect_locationr   Zstatusr   Z_prepare_for_method_changer=   
isinstancer   Zfrom_intZremove_headers_on_redirectZis_same_hostr?   r   Ziterkeysr:   rA   Z	incrementr
   Zraise_on_redirectloginfo)rT   methodrf   rl   r\   rg   Zconnrn   Zredirect_locationrm   r6   headerrF   rF   rG   rp   /  sH    	




zPoolManager.urlopen)rK   N)N)NrI   N)N)N)T)__name__
__module____qualname____doc__ro   rO   rV   rY   r]   rW   rb   r`   rc   rh   r_   rp   rF   rF   rF   rG   r   {   s   

	


c                   sH   e Zd ZdZd fdd	Zd fdd	Zdd	d
Zd fdd	Z  ZS )r   ax  
    Behaves just like :class:`PoolManager`, but sends all requests through
    the defined proxy, using the CONNECT method for HTTPS URLs.

    :param proxy_url:
        The URL of the proxy to be used.

    :param proxy_headers:
        A dictionary containing headers that will be sent to the proxy. In case
        of HTTP they are being sent with each request, while in the
        HTTPS/CONNECT case they are sent only once. Could be used for proxy
        authentication.

    Example:
        >>> proxy = urllib3.ProxyManager('http://localhost:3128/')
        >>> r1 = proxy.request('GET', 'http://google.com/')
        >>> r2 = proxy.request('GET', 'http://httpbin.org/')
        >>> len(proxy.pools)
        1
        >>> r3 = proxy.request('GET', 'https://httpbin.org/')
        >>> r4 = proxy.request('GET', 'https://twitter.com/')
        >>> len(proxy.pools)
        3

    rK   Nc                s   t |trd|j|j|jf }t|}|jsFtj|jd}|j|d}|jdkrZt	|j|| _
|pfi | _| j
|d< | j|d< tt| j||f| d S )	Nz
%s://%s:%ir^   )rZ   rI   rJ   _proxyr7   )rI   rJ   )rq   r   r4   r5   rZ   r   r   r=   _replacer   ro   proxy_headerssuperr   rO   )rT   	proxy_urlrU   r6   r|   rP   ro   rZ   )	__class__rF   rG   rO     s    








zProxyManager.__init__rI   c                sD   |dkr t t| j||||dS t t| j| jj| jj| jj|dS )NrJ   )ra   )r}   r   rb   ro   r5   rZ   r4   )rT   r5   rZ   r4   ra   )r   rF   rG   rb     s
    

z!ProxyManager.connection_from_hostc             C   s0   ddi}t |j}|r||d< |r,|j| |S )z
        Sets headers needed by proxies: specifically, the Accept and Host
        headers. Only sets headers not provided by the user.
        ZAcceptz*/*ZHost)r   netlocupdate)rT   rf   r6   Zheaders_r   rF   rF   rG   _set_proxy_headers  s    

zProxyManager._set_proxy_headersTc                sN   t |}|jdkr0|jd| j}| j|||d< tt| j||fd|i|S )z@Same as HTTP(S)ConnectionPool.urlopen, ``url`` must be absolute.rI   r6   rl   )r   r4   r=   r6   r   r}   r   rp   )rT   rt   rf   rl   r\   rg   r6   )r   rF   rG   rp     s
    
zProxyManager.urlopen)rK   NN)NrI   N)N)T)	rv   rw   rx   ry   rO   rb   r   rp   __classcell__rF   rF   )r   rG   r   p  s    
c             K   s   t f d| i|S )Nr~   )r   )rf   r\   rF   rF   rG   r     s    )r   r   r   r   r   r   r   )r   r   r   r   r   r    r!   r"   r#   r$   r%   r&   r'   r(   r)   r*   r+   r,   r-   r.   r/   r0   r1   r2   ))Z
__future__r   collections	functoolsZlogging_collectionsr   r   Zconnectionpoolr   r   r   
exceptionsr	   r
   r   Zpackagesr   Zpackages.six.moves.urllib.parser   Zrequestr   Zutil.urlr   Z
util.retryr   __all__Z	getLoggerrv   rr   r[   Z_key_fields
namedtupler3   rH   partialrS   rR   r   r   r   rF   rF   rF   rG   <module>   sd   

                        6
 vW