3
]ð]�B  ã               @   s  d dl mZ d dlZd dlZd dlZddl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ƒZd8Zd9Zejd1eƒZ d2d3„ Z!ej"e!e ƒej"e!e ƒd4œZ#ee	d4œZ$G d5d„ deƒZ%G d6d„ de%ƒZ&d7d„ Z'dS ):é    )Úabsolute_importNé   )ÚRecentlyUsedContainer)ÚHTTPConnectionPoolÚHTTPSConnectionPool)Úport_by_scheme)ÚLocationValueErrorÚMaxRetryErrorÚProxySchemeUnknown)Úsix)Úurljoin)ÚRequestMethods)Ú	parse_url)ÚRetryÚPoolManagerÚProxyManagerÚproxy_from_urlÚkey_fileÚ	cert_fileÚ	cert_reqsÚca_certsÚssl_versionÚca_cert_dirÚssl_contextÚkey_passwordÚ
key_schemeÚkey_hostÚkey_portÚkey_timeoutÚkey_retriesÚ
key_strictÚ	key_blockÚkey_source_addressÚkey_key_fileÚkey_key_passwordÚkey_cert_fileÚkey_cert_reqsÚkey_ca_certsÚkey_ssl_versionÚkey_ca_cert_dirÚkey_ssl_contextÚkey_maxsizeÚkey_headersÚ
key__proxyÚkey__proxy_headersÚkey_socket_optionsÚkey__socks_optionsÚkey_assert_hostnameÚkey_assert_fingerprintÚkey_server_hostnameÚPoolKeyc             C   sÎ   |j ƒ }|d jƒ |d< |d jƒ |d< x4d	D ],}||kr.|| dk	r.t|| jƒ ƒ||< q.W |jdƒ}|dk	r|t|ƒ|d< x&t|jƒ ƒD ]}|j|ƒ|d| < qŠW x| j	D ]}||kr¬d||< q¬W | f |Ž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
    ÚschemeÚhostÚheadersÚ_proxy_headersÚ_socks_optionsNÚsocket_optionsÚkey_)r7   r8   r9   )
ÚcopyÚlowerÚ	frozensetÚitemsÚgetÚtupleÚlistÚkeysÚpopÚ_fields)Ú	key_classÚrequest_contextÚcontextÚkeyÚsocket_optsÚfield© rL   ú6/tmp/pip-build-irfnccat/urllib3/urllib3/poolmanager.pyÚ_default_key_normalizerD   s    

rN   )ÚhttpÚ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

    Né
   c             K   s8   t j| |ƒ || _t|dd„ d�| _t| _tjƒ | _d S )Nc             S   s   | j ƒ S )N)Úclose)ÚprL   rL   rM   Ú<lambda>¢   s    z&PoolManager.__init__.<locals>.<lambda>)Údispose_func)r   Ú__init__Úconnection_pool_kwr   ÚpoolsÚpool_classes_by_schemeÚkey_fn_by_schemer<   )ÚselfÚ	num_poolsr7   rW   rL   rL   rM   rV   Ÿ   s
    zPoolManager.__init__c             C   s   | S )NrL   )r[   rL   rL   rM   Ú	__enter__©   s    zPoolManager.__enter__c             C   s   | j ƒ  dS )NF)Úclear)r[   Úexc_typeÚexc_valÚexc_tbrL   rL   rM   Ú__exit__¬   s    zPoolManager.__exit__c             C   sf   | j | }|dkr| jjƒ }xdD ]}|j|dƒ q"W |dkrXxtD ]}|j|dƒ qDW |||f|Ž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.
        Nr5   r6   ÚportrO   )r5   r6   rc   )rY   rW   r<   rD   ÚSSL_KEYWORDS)r[   r5   r6   rc   rG   Úpool_clsrI   ÚkwrL   rL   rM   Ú	_new_pool±   s    




zPoolManager._new_poolc             C   s   | j jƒ  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)rX   r^   )r[   rL   rL   rM   r^   Ì   s    zPoolManager.clearrO   c             C   sT   |st dƒ‚| j|ƒ}|pd|d< |s:tj|d jƒ dƒ}||d< ||d< | j|ƒ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.rO   r5   éP   rc   r6   )r   Ú_merge_pool_kwargsr   r@   r=   Úconnection_from_context)r[   r6   rc   r5   Úpool_kwargsrG   rL   rL   rM   Úconnection_from_hostÕ   s    
z PoolManager.connection_from_hostc             C   s,   |d j ƒ }| j| }||ƒ}| j||d�S )zâ
        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.
        r5   )rG   )r=   rZ   Úconnection_from_pool_key)r[   rG   r5   Úpool_key_constructorÚpool_keyrL   rL   rM   rj   ì   s    
z#PoolManager.connection_from_contextc             C   s`   | j j�N | j j|ƒ}|r|S |d }|d }|d }| j||||d�}|| j |< W dQ R X |S )zû
        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.
        r5   r6   rc   )rG   N)rX   Úlockr@   rg   )r[   ro   rG   Úpoolr5   r6   rc   rL   rL   rM   rm   ù   s    
z$PoolManager.connection_from_pool_keyc             C   s    t |ƒ}| j|j|j|j|d�S )aÖ  
        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.
        )rc   r5   rk   )r   rl   r6   rc   r5   )r[   Úurlrk   ÚurL   rL   rM   Úconnection_from_url  s    zPoolManager.connection_from_urlc             C   sZ   | j jƒ }|rVxF|jƒ 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)rW   r<   r?   ÚKeyError)r[   ÚoverrideÚbase_pool_kwargsrI   ÚvaluerL   rL   rM   ri   !  s    

zPoolManager._merge_pool_kwargsTc             K   s‚  t |ƒ}| j|j|j|jd�}d|d< d|d< d|krD| jjƒ |d< | jdk	rj|jdkrj|j||f|Ž}n|j||j	f|Ž}|o†|j
ƒ }|s�|S t||ƒ}|jdkr¨d	}|jd
ƒ}	t|	tƒsÊtj|	|d�}	|	joÚ|j|ƒ �rttj|d ƒƒ}
x*|
D ]"}|jƒ |	jkrö|d j|dƒ qöW y|	j||||d�}	W n  tk
�rR   |	j�rN‚ |S X |	|d
< ||d< tjd||ƒ | j||f|Ž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.
        )rc   r5   FÚassert_same_hostÚredirectr7   NrO   i/  ÚGETÚretries)rz   )ÚresponseÚ_poolzRedirecting %s -> %s)r   rl   r6   rc   r5   r7   r<   ÚproxyÚurlopenÚrequest_uriÚget_redirect_locationr   Ústatusr@   Ú
isinstancer   Úfrom_intZremove_headers_on_redirectÚis_same_hostrB   r   Úiterkeysr=   rD   Ú	incrementr	   Úraise_on_redirectÚlogÚinfo)r[   Úmethodrr   rz   rf   rs   Úconnr}   Úredirect_locationr|   r7   ÚheaderrL   rL   rM   r€   5  sD    	






zPoolManager.urlopen)rQ   N)N)NrO   N)N)N)T)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   rV   r]   rb   rg   r^   rl   rj   rm   rt   ri   r€   rL   rL   rL   rM   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

    rQ   Nc                s˜   t |tƒrd|j|j|jf }t|ƒ}|jsFtj|jdƒ}|j|d�}|jdkrZt	|jƒ‚|| _
|pfi | _| j
|d< | j|d< tt| ƒj||f|Ž d S )	Nz
%s://%s:%irh   )rc   rO   rP   Ú_proxyr8   )rO   rP   )r„   r   r5   r6   rc   r   r   r@   Ú_replacer
   r   Úproxy_headersÚsuperr   rV   )r[   Ú	proxy_urlr\   r7   r–   rW   r   rc   )Ú	__class__rL   rM   rV   �  s     	






zProxyManager.__init__rO   c                sD   |dkr t t| ƒj||||d�S t t| ƒj| jj| jj| jj|d�S )NrP   )rk   )r—   r   rl   r   r6   rc   r5   )r[   r6   rc   r5   rk   )r™   rL   rM   rl   ®  s
    

z!ProxyManager.connection_from_hostc             C   s0   ddi}t |ƒj}|r||d< |r,|j|ƒ |S )z�
        Sets headers needed by proxies: specifically, the Accept and Host
        headers. Only sets headers not provided by the user.
        ÚAcceptz*/*ÚHost)r   ÚnetlocÚupdate)r[   rr   r7   Úheaders_rœ   rL   rL   rM   Ú_set_proxy_headers¸  s    

zProxyManager._set_proxy_headersTc                sN   t |ƒ}|jdkr0|jd| jƒ}| j||ƒ|d< tt| ƒj||fd|i|—ŽS )z@Same as HTTP(S)ConnectionPool.urlopen, ``url`` must be absolute.rO   r7   rz   )r   r5   r@   r7   rŸ   r—   r   r€   )r[   rŒ   rr   rz   rf   rs   r7   )r™   rL   rM   r€   Ç  s
    
zProxyManager.urlopen)rQ   NN)NrO   N)N)T)	r�   r‘   r’   r“   rV   rl   rŸ   r€   Ú__classcell__rL   rL   )r™   rM   r   t  s     

c             K   s   t f d| i|—ŽS )Nr˜   )r   )rr   rf   rL   rL   rM   r   Õ  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.   r/   r0   r1   r2   r3   )(Ú
__future__r   ÚcollectionsÚ	functoolsÚloggingÚ_collectionsr   Úconnectionpoolr   r   r   Ú
exceptionsr   r	   r
   Úpackagesr   Zpackages.six.moves.urllib.parser   Úrequestr   Zutil.urlr   Z
util.retryr   Ú__all__Ú	getLoggerr�   rŠ   rd   Ú_key_fieldsÚ
namedtupler4   rN   ÚpartialrZ   rY   r   r   r   rL   rL   rL   rM   Ú<module>   sp   

                               6

 ta