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poolmanager.cpython-36.pyc
3 h��fGC � @ s d dl mZ d dlZd dlZd dlZddlmZmZ ddlm Z m Z ddlm Z ddl m Z mZmZ ddlmZ dd lmZ dd lmZ dd lmZ dd lmZ d ddgZeje �Z d6Z d7Z ej d/e �Z!d0d1� Z"ej#e"e!�ej#e"e!�d2�Z$e e d2�Z%G d3d � d e�Z&G d4d� de&�Z'd5d� Z(dS )8� )�absolute_importN� )�HTTPHeaderDict�RecentlyUsedContainer)�HTTPConnectionPool�HTTPSConnectionPool)�port_by_scheme)�LocationValueError� MaxRetryError�ProxySchemeUnknown)�six)�urljoin)�RequestMethods)� parse_url)�Retry� PoolManager� ProxyManager�proxy_from_url�key_file� cert_file� cert_reqs�ca_certs� ssl_version� ca_cert_dir� ssl_context� key_scheme�key_host�key_port� key_timeout� key_retries� key_strict� key_block�key_source_address� key_key_file� key_cert_file� key_cert_reqs� key_ca_certs�key_ssl_version�key_ca_cert_dir�key_ssl_context� key_maxsize� key_headers� key__proxy�key__proxy_headers�key_socket_options�key__socks_options�key_assert_hostname�key_assert_fingerprint�key_server_hostname�PoolKeyc C s� |j � }|d j� |d< |d j� |d< x4d D ],}||kr.|| dk r.t|| j� �||< q.W |jd�}|dk r|t|�|d< x&t|j� �D ]}|j|�|d| < q�W x | j D ]}||kr�d||< q�W | f |�S ) a� Create a pool key out of a request context dictionary. According to RFC 3986, both the scheme and host are case-insensitive. Therefore, this function normalizes both before constructing the pool key for an HTTPS request. If you wish to change this behaviour, provide alternate callables to ``key_fn_by_scheme``. :param key_class: The class to use when constructing the key. This should be a namedtuple with the ``scheme`` and ``host`` keys at a minimum. :type key_class: namedtuple :param request_context: A dictionary-like object that contain the context for a request. :type request_context: dict :return: A namedtuple that can be used as a connection pool key. :rtype: PoolKey �scheme�host�headers�_proxy_headers�_socks_optionsNZsocket_optionsZkey_)r6 r7 r8 ) �copy�lower� frozenset�items�get�tuple�list�keys�pop�_fields)Z key_class�request_context�context�keyZ socket_optsZfield� rF �!/usr/lib/python3.6/poolmanager.py�_default_key_normalizer; s rH )�http�httpsc @ sx e Zd ZdZdZd dd�Zdd� Zdd � Zd d d �Zd d � Z d dd�Z dd� Z d dd�Z d dd�Z dd� Zd!dd�ZdS )"r a$ 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|dd� d�| _t| _tj� | _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 zPoolManager.__init__c C s | S )NrF )rT rF rF rG � __enter__� s zPoolManager.__enter__c C s | j � dS )NF)�clear)rT �exc_typeZexc_valZexc_tbrF rF rG �__exit__� s zPoolManager.__exit__c C sf | j | }|dkr | jj� }xdD ]}|j|d� q"W |dkrXxtD ]}|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 Zpool_clsrE �kwrF rF rG � _new_pool� s zPoolManager._new_poolc C s | j j� dS )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 zPoolManager.clearrI c C sT |s t d��| j|�}|p d|d< |s:tj|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. zNo 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 Zpool_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 dQ 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 Zpoolr4 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 ]:\}}|dkrJy ||= W qR tk rF Y qRX q|||< qW |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 �overrideZbase_pool_kwargsrE �valuerF rF rG r_ s z PoolManager._merge_pool_kwargsTc K s� t |�}| j|j|j|jd�}d|d< d|d< d|krD| jj� |d< | jdk rj|jdkrj|j||f|�}n|j||j f|�}|o�|j � }|s�|S t ||�}|j dkr�d }d|d < t |d �j� |d< |jd �} t| t�s�tj| |d �} | jo�|j|� �r<ttj|d ��} x.| D ]&} | j� | jk�r|d j| d� �qW y| j||||d �} W n tk �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 FZassert_same_host�redirectr6 NrI i/ ZGETZbody�retries)rl )�responseZ_poolzRedirecting %s -> %s) r rb r5 rZ r4 r6 r9 �proxy�urlopenZ request_uriZget_redirect_locationr Zstatusr Z_prepare_for_method_changer= � isinstancer Zfrom_intZremove_headers_on_redirectZ is_same_hostr? r Ziterkeysr: rA Z incrementr Zraise_on_redirect�log�info) rT �methodrf rl r\ rg Zconnrn Zredirect_locationrm r6 �headerrF rF rG rp / sH zPoolManager.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 Zd ZdZd� fdd� Zd� fdd� Zdd d �Zd� fd d � Z� ZS )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|jf }t|�}|jsFtj|jd�}|j|d�}|jdkrZt |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 zProxyManager.__init__rI c sD |dkr t t| �j||||d�S t t| �j| jj| jj| jj|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 ddi}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. ZAcceptz*/*ZHost)r �netloc�update)rT rf r6 Zheaders_r� rF rF rG �_set_proxy_headers� s z ProxyManager._set_proxy_headersTc sN t |�}|jdkr0|jd| j�}| j||�|d< tt| �j||fd|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 zProxyManager.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� functoolsZlogging� _collectionsr r Zconnectionpoolr r r � exceptionsr r r Zpackagesr Z packages.six.moves.urllib.parser Zrequestr Zutil.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 vW