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a jKWf w � @ sl d Z ddlZddlZddlZddlmZ ddlmZ ddlm Z ddl m Z ddl m Z dd lmZmZmZmZ dd lmZmZmZmZ dd lmZmZmZm Z dd l m Z m Z dd l m!Z!m"Z"m#Z#m$Z$ ddl%m&Z& ddl'm(Z( ddl)m*Z*m+Z+m,Z,m-Z-m.Z.m/Z/m0Z0m1Z1m2Z2m3Z3 ej4dk�r$ej5Z6nejZ6efdd�Z7efdd�Z8G dd� d�Z9G dd� de9�Z:dd� Z;dS ) z� requests.sessions ~~~~~~~~~~~~~~~~~ This module provides a Session object to manage and persist settings across requests (cookies, auth, proxies). � N)� OrderedDict)� timedelta� )�to_native_string)� HTTPAdapter)�_basic_auth_str)�Mapping� cookielib�urljoin�urlparse)�RequestsCookieJar�cookiejar_from_dict�extract_cookies_to_jar� merge_cookies)�ChunkedEncodingError�ContentDecodingError� InvalidSchema�TooManyRedirects)� default_hooks� dispatch_hook)�DEFAULT_REDIRECT_LIMIT�REDIRECT_STATI�PreparedRequest�Request)�codes)�CaseInsensitiveDict) � DEFAULT_PORTS�default_headers�get_auth_from_url�get_environ_proxies�get_netrc_auth� requote_uri�resolve_proxies� rewind_body�should_bypass_proxies�to_key_val_list�win32c C sp |du r | S | du r|S t |t�r,t | t�s0| S |t|��}|�t| �� dd� |�� D �}|D ] }||= q`|S )z�Determines appropriate setting for a given request, taking into account the explicit setting on that request, and the setting in the session. If a setting is a dictionary, they will be merged together using `dict_class` Nc S s g | ]\}}|d u r|�qS �N� )�.0�k�vr( r( �9/opt/gsutil/third_party/requests/src/requests/sessions.py� <listcomp>T � z!merge_setting.<locals>.<listcomp>)� isinstancer r% �update�items)Zrequest_settingZsession_setting� dict_classZmerged_settingZ none_keys�keyr( r( r, � merge_setting= s �� r4 c C s@ |du s|� d�g kr| S | du s0| � d�g kr4|S t| ||�S )z�Properly merges both requests and session hooks. This is necessary because when request_hooks == {'response': []}, the merge breaks Session hooks entirely. N�response)�getr4 )Z request_hooksZ session_hooksr2 r( r( r, � merge_hooks[ s r7 c @ s> e Zd Zdd� Zdd� Zddd �Zd d � Zd d � Zdd� ZdS )�SessionRedirectMixinc C s( |j r$|jd }|�d�}t|d�S dS )z7Receives a Response. Returns a redirect URI or ``None``�location�latin1�utf8N)� is_redirect�headers�encoder )�self�respr9 r( r( r, �get_redirect_targetk s z(SessionRedirectMixin.get_redirect_targetc C s� t |�}t |�}|j|jkr dS |jdkrL|jdv rL|jdkrL|jdv rLdS |j|jk}|j|jk}t�|jd�df}|s�|j|v r�|j|v r�dS |p�|S )zFDecide whether Authorization header should be removed when redirectingT�http)�P N�https)i� NFN)r �hostname�scheme�portr r6 )r? Zold_url�new_urlZ old_parsedZ new_parsedZ changed_portZchanged_scheme� default_portr( r( r, �should_strip_auth s0 ���� ���z&SessionRedirectMixin.should_strip_authFNTc k sH g } | � |�} t|j�j} | �rD|�� } | �|� | dd� |_z |j W n& tt t fyp |j j dd� Y n0 t |j�| jkr�td| j� d�|d��|�� | �d�r�t|j�}d �t|j�| g�} t| �}|jd kr�| r�|j| d �}n |jr�|j} |�� } |j�st|jt| ��} nt| �} t| �| _| �| |� |jt j t j fv�rpd }|D ]}| j � |d� �qTd| _!| j }|� d d� t"| j#||j � t$| j#| j%� | �&| j#� | �'| |�}| �(| |� | j)du�o�d|v �p�d|v }|�r�t*| � | }|�r|V q| j+|f|||||dd�| ��}t"| j%| |j � | � |�} |V qdS )zBReceives a Response. Returns a generator of Responses or Requests.r NF)�decode_contentz Exceeded z redirects.)r5 z//�:� )�fragment)�Content-Lengthz Content-Type�Transfer-Encoding�CookierO rP )�stream�timeout�verify�cert�proxies�allow_redirects),rA r �urlrN �copy�append�history�contentr r � RuntimeError�raw�read�len� max_redirectsr �close� startswith�joinr rF �_replace�geturl�netlocr r! �rebuild_method� status_coder Ztemporary_redirectZpermanent_redirectr= �pop�bodyr �_cookiesr �cookiesZprepare_cookies�rebuild_proxies� rebuild_auth�_body_positionr# �send)r? r@ �reqrR rS rT rU rV �yield_requestsZadapter_kwargsZhistrX Zprevious_fragment�prepared_requestZ parsed_rurl�parsedZpurged_headers�headerr= Z rewindabler( r( r, �resolve_redirects� s� � � ���� z&SessionRedirectMixin.resolve_redirectsc C sR |j }|j}d|v r*| �|jj|�r*|d= | jr8t|�nd}|durN|�|� dS )z�When being redirected we may want to strip authentication from the request to avoid leaking credentials. This method intelligently removes and reapplies authentication where possible to avoid credential loss. � AuthorizationN)r= rX rJ �request� trust_envr Z prepare_auth)r? rt r5 r= rX Znew_authr( r( r, ro s �z!SessionRedirectMixin.rebuild_authc C s� |j }t|j�j}t||| j�}d|v r.|d= zt|| �\}}W n ty\ d\}}Y n0 |�d�s~|r~|r~t ||�|d< |S )a� This method re-evaluates the proxy configuration by considering the environment variables. If we are redirected to a URL covered by NO_PROXY, we strip the proxy configuration. Otherwise, we set missing proxy keys for this URL (in case they were stripped by a previous redirect). This method also replaces the Proxy-Authorization header where necessary. :rtype: dict zProxy-Authorization)NNrD ) r= r rX rF r" rz r �KeyErrorrc r )r? rt rV r= rF � new_proxies�username�passwordr( r( r, rn . s z$SessionRedirectMixin.rebuild_proxiesc C sX |j }|jtjkr |dkr d}|jtjkr6|dkr6d}|jtjkrN|dkrNd}||_ dS )z�When being redirected we may want to change the method of the request based on certain specs or browser behavior. �HEAD�GET�POSTN)�methodri r Z see_other�foundZmoved)r? rt r5 r� r( r( r, rh M s z#SessionRedirectMixin.rebuild_method)FNTNNF) �__name__� __module__� __qualname__rA rJ rw ro rn rh r( r( r( r, r8 j s $ � { r8 c @ s� e Zd ZdZg d�Zdd� Zdd� Zdd� Zd d � Zd+d d�Z dd� Z dd� Z dd� Z d,dd�Z d-dd�Zd.dd�Zdd � Zd d � Zd d � Zd!d"� Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd S )/�Sessiona� A Requests session. Provides cookie persistence, connection-pooling, and configuration. Basic Usage:: >>> import requests >>> s = requests.Session() >>> s.get('https://httpbin.org/get') <Response [200]> Or as a context manager:: >>> with requests.Session() as s: ... s.get('https://httpbin.org/get') <Response [200]> ) r= rm �authrV �hooks�paramsrT rU �adaptersrR rz ra c C sr t � | _d | _i | _t� | _i | _d| _d| _d | _ t | _ d| _ t i �| _t� | _| �dt� � | �dt� � d S )NFTzhttps://zhttp://)r r= r� rV r r� r� rR rT rU r ra rz r rm r r� �mountr �r? r( r( r, �__init__� s zSession.__init__c C s | S r' r( r� r( r( r, � __enter__� s zSession.__enter__c G s | � � d S r' )rb )r? �argsr( r( r, �__exit__� s zSession.__exit__c C s� |j pi }t|tj�s t|�}ttt� | j �|�}|j}| jrR|sR| jsRt |j �}t � }|j |j �� |j |j|j|jt|j| jtd�t|j| j�t|| j�|t|j| j�d� |S )a� Constructs a :class:`PreparedRequest <PreparedRequest>` for transmission and returns it. The :class:`PreparedRequest` has settings merged from the :class:`Request <Request>` instance and those of the :class:`Session`. :param request: :class:`Request` instance to prepare with this session's settings. :rtype: requests.PreparedRequest )r2 ) r� rX �files�data�jsonr= r� r� rm r� )rm r/ r � CookieJarr r r r� rz r rX r �preparer� �upperr� r� r� r4 r= r r� r7 r� )r? ry rm Zmerged_cookiesr� �pr( r( r, �prepare_request� s2 � � �zSession.prepare_requestNTc C sx t |�� ||||pi ||p i ||| d� }| �|�}| p8i } | �|j| | ||�}| | d�}|�|� | j|fi |��}|S )a� Constructs a :class:`Request <Request>`, prepares it and sends it. Returns :class:`Response <Response>` object. :param method: method for the new :class:`Request` object. :param url: URL for the new :class:`Request` object. :param params: (optional) Dictionary or bytes to be sent in the query string for the :class:`Request`. :param data: (optional) Dictionary, list of tuples, bytes, or file-like object to send in the body of the :class:`Request`. :param json: (optional) json to send in the body of the :class:`Request`. :param headers: (optional) Dictionary of HTTP Headers to send with the :class:`Request`. :param cookies: (optional) Dict or CookieJar object to send with the :class:`Request`. :param files: (optional) Dictionary of ``'filename': file-like-objects`` for multipart encoding upload. :param auth: (optional) Auth tuple or callable to enable Basic/Digest/Custom HTTP Auth. :param timeout: (optional) How long to wait for the server to send data before giving up, as a float, or a :ref:`(connect timeout, read timeout) <timeouts>` tuple. :type timeout: float or tuple :param allow_redirects: (optional) Set to True by default. :type allow_redirects: bool :param proxies: (optional) Dictionary mapping protocol or protocol and hostname to the URL of the proxy. :param hooks: (optional) Dictionary mapping hook name to one event or list of events, event must be callable. :param stream: (optional) whether to immediately download the response content. Defaults to ``False``. :param verify: (optional) Either a boolean, in which case it controls whether we verify the server's TLS certificate, or a string, in which case it must be a path to a CA bundle to use. Defaults to ``True``. When set to ``False``, requests will accept any TLS certificate presented by the server, and will ignore hostname mismatches and/or expired certificates, which will make your application vulnerable to man-in-the-middle (MitM) attacks. Setting verify to ``False`` may be useful during local development or testing. :param cert: (optional) if String, path to ssl client cert file (.pem). If Tuple, ('cert', 'key') pair. :rtype: requests.Response ) r� rX r= r� r� r� r� r� rm r� )rS rW )r r� r� �merge_environment_settingsrX r0 rq )r? r� rX r� r� r= rm r� r� rS rW rV r� rR rT rU r� rr Zprep�settingsZ send_kwargsr@ r( r( r, ry � s. ?� �� zSession.requestc K s |� dd� | jd|fi |��S )z�Sends a GET request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response rW Tr� �� setdefaultry �r? rX �kwargsr( r( r, r6 Q s z Session.getc K s |� dd� | jd|fi |��S )z�Sends a OPTIONS request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response rW T�OPTIONSr� r� r( r( r, �options\ s zSession.optionsc K s |� dd� | jd|fi |��S )z�Sends a HEAD request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response rW Fr r� r� r( r( r, �headg s z Session.headc K s | j d|f||d�|��S )a� Sends a POST request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param data: (optional) Dictionary, list of tuples, bytes, or file-like object to send in the body of the :class:`Request`. :param json: (optional) json to send in the body of the :class:`Request`. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response r� )r� r� �ry )r? rX r� r� r� r( r( r, �postr s z Session.postc K s | j d|fd|i|��S )au Sends a PUT request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param data: (optional) Dictionary, list of tuples, bytes, or file-like object to send in the body of the :class:`Request`. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response �PUTr� r� �r? rX r� r� r( r( r, �put s z Session.putc K s | j d|fd|i|��S )aw Sends a PATCH request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param data: (optional) Dictionary, list of tuples, bytes, or file-like object to send in the body of the :class:`Request`. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response �PATCHr� r� r� r( r( r, �patch� s z Session.patchc K s | j d|fi |��S )z�Sends a DELETE request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response �DELETEr� r� r( r( r, �delete� s zSession.deletec K s� |� d| j� |� d| j� |� d| j� d|vrFt|| j| j�|d< t|t�rXt d��|� dd�}|� d�}|j }| j |jd�}t� }|j|fi |��}t� | } t| d �|_td ||fi |��}|jr�|jD ]} t| j| j| j� q�t| j||j� |�r"| j||fi |��} d d � | D �} ng } | �rF| �d |� | � � }| |_|�s�z"t| j||fddi|���|_ W n t �y� Y n0 |�s�|j |S )zISend a given PreparedRequest. :rtype: requests.Response rR rT rU rV z#You can only send PreparedRequests.rW T)rX )�secondsr5 c S s g | ]}|�qS r( r( )r) r@ r( r( r, r- � r. z Session.send.<locals>.<listcomp>r rs ) r� rR rT rU r" rV rz r/ r � ValueErrorrj r6 r� � get_adapterrX �preferred_clockrq r �elapsedr r[ r rm ry r^ rw �insert�next�_next� StopIterationr\ ) r? ry r� rW rR r� �adapter�start�rr� r@ �genr[ r( r( r, rq � sL � z Session.sendc C s� | j rr|dur|�d�nd}t||d�}|�� D ]\}} |�|| � q0|du sV|du rrtj�d�pptj�d�pp|}t|| j�}t|| j �}t|| j �}t|| j �}||||d�S )z^ Check the environment and merge it with some settings. :rtype: dict N�no_proxy)r� TZREQUESTS_CA_BUNDLEZCURL_CA_BUNDLE)rV rR rT rU ) rz r6 r r1 r� �os�environr4 rV rR rT rU ) r? rX rV rR rT rU r� Z env_proxiesr* r+ r( r( r, r� � s �� z"Session.merge_environment_settingsc C s@ | j �� D ]"\}}|�� �|�� �r | S q td|����dS )z~ Returns the appropriate connection adapter for the given URL. :rtype: requests.adapters.BaseAdapter z&No connection adapters were found for N)r� r1 �lowerrc r )r? rX �prefixr� r( r( r, r� s zSession.get_adapterc C s | j �� D ] }|�� q dS )z+Closes all adapters and as such the sessionN)r� �valuesrb )r? r+ r( r( r, rb s z Session.closec s> || j � < � fdd�| j D �}|D ]}| j �|�| j |< q"dS )zwRegisters a connection adapter to a prefix. Adapters are sorted in descending order by prefix length. c s g | ]}t |�t � �k r|�qS r( )r` )r) r* �r� r( r, r- % r. z!Session.mount.<locals>.<listcomp>N)r� rj )r? r� r� Z keys_to_mover3 r( r� r, r� s z Session.mountc s � fdd�� j D �}|S )Nc s i | ]}|t � |d ��qS r' )�getattr)r) �attrr� r( r, � <dictcomp>+ r. z(Session.__getstate__.<locals>.<dictcomp>)� __attrs__)r? �stater( r� r, � __getstate__* s zSession.__getstate__c C s" |� � D ]\}}t| ||� qd S r' )r1 �setattr)r? r� r� �valuer( r( r, � __setstate__. s zSession.__setstate__)NNNNNNNTNNNNNN)NN)N)N)r� r� r� �__doc__r� r� r� r� r� ry r6 r� r� r� r� r� r� rq r� r� rb r� r� r� r( r( r( r, r� d sF =/ � ] M r� c C s t � S )aZ Returns a :class:`Session` for context-management. .. deprecated:: 1.0.0 This method has been deprecated since version 1.0.0 and is only kept for backwards compatibility. New code should use :class:`~requests.sessions.Session` to create a session. This may be removed at a future date. :rtype: Session )r� r( r( r( r, �session3 s r� )<r� r� �sys�time� collectionsr �datetimer �_internal_utilsr r� r r� r �compatr r r r rm r r r r � exceptionsr r r r r� r r �modelsr r r r � status_codesr � structuresr �utilsr r r r r r! r" r# r$ r% �platform� perf_counterr� r4 r7 r8 r� r� r( r( r( r, �<module> s8 0 { R
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