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poolmanager.cpython-310.pyc
o YhQ @ s6 d dl mZ d dlZd dlZd dlZddlmZmZ ddlm Z m Z m Z ddl m Z mZmZmZmZ d dlZd dlmZ ddlmZ dd lmZ dd lmZ dd lm Z g d Z e e Z d Z!dZ"e#de"Z$dZ%e#de%Z&dd Z'e(e'e$e(e'e$dZ)e e dZ*G dd deZ+G dd de+Z,dd Z-dS ) )absolute_importN )HTTPHeaderDictRecentlyUsedContainer)HTTPConnectionPoolHTTPSConnectionPoolport_by_scheme)LocationValueError MaxRetryErrorProxySchemeUnknownProxySchemeUnsupportedURLSchemeUnknown)urljoin)RequestMethods) connection_requires_http_tunnel)Retry) parse_url) PoolManager ProxyManagerproxy_from_url)key_file cert_file cert_reqsca_certs ssl_version ca_cert_dir ssl_context key_password) key_schemekey_hostkey_port key_timeout key_retries key_strict key_blockkey_source_address key_key_filekey_key_password key_cert_file key_cert_reqs key_ca_certskey_ssl_versionkey_ca_cert_dirkey_ssl_context key_maxsize key_headers key__proxykey__proxy_headerskey__proxy_configkey_socket_optionskey__socks_optionskey_assert_hostnamekey_assert_fingerprintkey_server_hostnamePoolKey)r use_forwarding_for_https ProxyConfigc C s | }|d |d< |d |d< dD ]}||v r,|| dur,t|| ||< q|d}|dur<t||d< t| D ] }|||d| < qB| j D ] }||vr[d||< qQ| di |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 schemehost)headers_proxy_headers_socks_optionsNsocket_optionskey_ ) copylower frozensetitemsgettuplelistkeyspop_fields) key_classrequest_contextcontextkey socket_optsfieldrB rB 5/usr/lib/python3/dist-packages/urllib3/poolmanager.py_default_key_normalizerN s" rT httphttpsc @ s e Zd ZdZdZdZd ddZdd Zdd Zd!d d Z d d Z d"ddZ dd Z d!ddZ d!ddZdd Zdd Zdd Zd#d d 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 s~ t | | d|v r)|d }t|ts)|du}tj|dd}||_| }||d< || _t|dd d| _ t | _ t | _ d S )NretriesFredirectc S s | S N)close)prB rB rS <lambda> s z&PoolManager.__init__.<locals>.<lambda>) dispose_func) r __init__ isinstancer from_intraise_on_redirectrC connection_pool_kwr poolspool_classes_by_schemekey_fn_by_scheme)self num_poolsr= re rY rd rB rB rS ra s zPoolManager.__init__c C s | S r\ rB ri rB rB rS __enter__ s zPoolManager.__enter__c C s | dS )NF)clear)ri exc_typeexc_valexc_tbrB rB rS __exit__ s zPoolManager.__exit__c C sb | j | }|du r| j }dD ]}||d q|dkr(tD ]}||d q |||fi |S )a Create a new :class:`urllib3.connectionpool.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. N)r; r< portrV )rg re rC rK SSL_KEYWORDS)ri r; r< rr rN pool_clsrP kwrB rB rS _new_pool s zPoolManager._new_poolc C s | 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)rf rm rk rB rB rS rm s zPoolManager.clearrV c C sT |st d| |}|pd|d< |s t|d d}||d< ||d< | |S )a Get a :class:`urllib3.connectionpool.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.rV r; P rr r< )r _merge_pool_kwargsr rG rD connection_from_context)ri r< rr r; pool_kwargsrN rB rB rS connection_from_host s z PoolManager.connection_from_hostc C s: |d }| j|}|st|||}| j||dS )z Get a :class:`urllib3.connectionpool.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. r; rN )rD rh rG r connection_from_pool_key)ri rN r; pool_key_constructorpool_keyrB rB rS ry s z#PoolManager.connection_from_contextc C s | j j4 | j |}|r|W d S |d }|d }|d }| j||||d}|| j |< W d |S 1 s;w Y |S )a Get a :class:`urllib3.connectionpool.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. Nr; r< rr r| )rf lockrG rv )ri r rN poolr; r< rr rB rB rS r} s z$PoolManager.connection_from_pool_keyc C s t |}| j|j|j|j|dS )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. )rr r; rz )r r{ r< rr r; )ri urlrz urB rB rS connection_from_url. s z PoolManager.connection_from_urlc C sR | j }|r'| D ]\}}|du r"z||= W q ty! Y q w |||< q |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)re rC rF KeyError)ri overridebase_pool_kwargsrP valuerB rB rS rx > s z PoolManager._merge_pool_kwargsc C s" | j du rdS t| j | j|j S )z Indicates if the proxy requires the complete destination URL in the request. Normally this is only needed when not using an HTTP CONNECT tunnel. NF)proxyr proxy_configr; )ri parsed_urlrB rB rS !_proxy_requires_url_absolute_formR s z-PoolManager._proxy_requires_url_absolute_formc C sD | j du s |dkr dS | j jdkrdS tjr | jjs tddS dS )z Validates that were not attempting to do TLS in TLS connections on Python2 or with unsupported SSL implementations. NrW zfContacting HTTPS destinations through HTTPS proxies 'via CONNECT tunnels' is not supported in Python 2)r r; sixPY2r r9 r )ri url_schemerB rB rS $_validate_proxy_scheme_url_selection_ s z0PoolManager._validate_proxy_scheme_url_selectionTc K s t |}| |j | j|j|j|jd}d|d< d|d< d|vr(| j |d< | |r8|j ||fi |}n |j ||j fi |}|oH| }|sM|S t ||}|j dkrgd}d|d < t|d |d< |d |j} t| tsztj| |d } | jr||stt|d } | D ]} | | jv r|d | d qz | j ||||d } W n t y | j r| | Y S w | |d < ||d< t !d || | | j ||fi |S )aN Same as :meth:`urllib3.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. )rr r; Fassert_same_hostr[ r= i/ GETNbodyrY rZ )response_poolzRedirecting %s -> %s)"r r r; r{ r< rr r= rC r urlopen request_uriget_redirect_locationr statusr _prepare_for_method_changerG rY rb r rc remove_headers_on_redirect is_same_hostrI r iterkeysrD rK incrementr rd drain_connloginfo) ri methodr r[ ru r connr redirect_locationrY r= headerrB rB rS r p sT zPoolManager.urlopen)rX Nr\ NrV NT)__name__ __module__ __qualname____doc__r r ra rl rq rv rm r{ ry r} r rx r r r rB rB rB rS r s" r c sR e Zd ZdZ d fdd Zd fdd Zdd d Zd fd d Z ZS )r a> 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. :param proxy_ssl_context: The proxy SSL context is used to establish the TLS connection to the proxy when using HTTPS proxies. :param use_forwarding_for_https: (Defaults to False) If set to True will forward requests to the HTTPS proxy to be made on behalf of the client instead of creating a TLS tunnel via the CONNECT method. **Enabling this flag means that request and response headers and content will be visible from the HTTPS proxy** whereas tunneling keeps request and response headers and content private. IP address, target hostname, SNI, and port are always visible to an HTTPS proxy even when this flag is disabled. 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 rX NFc s t |trd|j|j|jf }t|}|jdvr t|j|js-t|jd} |j | d}|| _ |p3i | _ || _ t ||| _| j |d< | j |d< | j|d< tt| j||fi | d S )Nz %s://%s:%irU rw )rr _proxyr> _proxy_config)rb r r; r< rr r r r rG _replacer proxy_headersproxy_ssl_contextr: r superr ra ) ri proxy_urlrj r= r r r9 re r rr __class__rB rS ra s( zProxyManager.__init__rV c sD |dkrt t| j||||dS t t| j| jj| jj| jj|dS )NrW )rz )r r r{ r r< rr r; )ri r< rr r; rz r rB rS r{ s z!ProxyManager.connection_from_hostc C s0 ddi}t |j}|r||d< |r|| |S )z Sets headers needed by proxies: specifically, the Accept and Host headers. Only sets headers not provided by the user. Acceptz*/*Host)r netlocupdate)ri r r= headers_r rB rB rS _set_proxy_headers s z ProxyManager._set_proxy_headersTc sV t |}t| j| j|js |d| j}| |||d< tt | j ||fd|i|S )z@Same as HTTP(S)ConnectionPool.urlopen, ``url`` must be absolute.r= r[ ) r r r r r; rG r= r r r r )ri r r r[ ru r r= r rB rS r s zProxyManager.urlopen)rX NNNFr r\ r ) r r r r ra r{ r r __classcell__rB rB r rS r s *% r c K s t dd| i|S )Nr rB )r )r ru rB rB rS r * s r ). __future__r collections functoolslogging _collectionsr r connectionpoolr r r exceptionsr r r r r r six.moves.urllib.parser requestr util.proxyr util.retryr util.urlr __all__ getLoggerr r rs _key_fields namedtupler8 _proxy_config_fieldsr: rT partialrh rg r r r rB rB rB rS <module> s< 6 . s