Edit File: sessions.cpython-36.pyc
3 �8�dUs � @ s� d Z ddlZddlZddlZddlmZ ddlmZ ddlm Z m Z m Z m Z m Z mZ ddlmZmZmZmZ ddlmZmZmZ dd lmZmZ dd lm Z dd l m Z m Z m Z dd l!m"Z"m#Z#m$Z$m%Z% dd l&m'Z' ddl(m)Z) ddl m*Z*m+Z+m,Z,m-Z-m.Z.m/Z/ ddl0m1Z1 ddlm2Z2 ej3dk�rNy ej4Z5W n e6k �rJ ej7Z5Y nX nejZ5e fdd�Z8e fdd�Z9G dd� de:�Z;G dd� de;�Z<dd � Z=dS ) z� requests.session ~~~~~~~~~~~~~~~~ This module provides a Session object to manage and persist settings across requests (cookies, auth, proxies). � N)� timedelta� )�_basic_auth_str)� cookielib�is_py3� OrderedDict�urljoin�urlparse�Mapping)�cookiejar_from_dict�extract_cookies_to_jar�RequestsCookieJar� merge_cookies)�Request�PreparedRequest�DEFAULT_REDIRECT_LIMIT)� default_hooks� dispatch_hook)�to_native_string)�to_key_val_list�default_headers� DEFAULT_PORTS)�TooManyRedirects� InvalidSchema�ChunkedEncodingError�ContentDecodingError)�CaseInsensitiveDict)� HTTPAdapter)� requote_uri�get_environ_proxies�get_netrc_auth�should_bypass_proxies�get_auth_from_url� rewind_body)�codes)�REDIRECT_STATIZwin32c C st |dkr | S | dkr|S t |t�o*t | t�s0| S |t|��}|jt| �� dd� |j� D �}x|D ] }||= qbW |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 kr|�qS )N� )�.0�k�vr& r& � /usr/lib/python3.6/sessions.py� <listcomp>I s z!merge_setting.<locals>.<listcomp>)� isinstancer r �update�items)Zrequest_settingZsession_setting� dict_classZmerged_settingZ none_keys�keyr& r& r* � merge_setting1 s r1 c C s@ |dks|j d�g kr| S | dks0| j 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)�getr1 )Z request_hooksZ session_hooksr/ r& r& r* � merge_hooksP s r4 c @ s> e Zd Zdd� Zdd� Zddd �Zd d � Zd d � Zdd� ZdS )�SessionRedirectMixinc C s, |j r(|jd }tr |jd�}t|d�S dS )z7Receives a Response. Returns a redirect URI or ``None``�location�latin1�utf8N)Z is_redirect�headersr �encoder )�self�respr6 r& r& r* �get_redirect_targeta s z(SessionRedirectMixin.get_redirect_targetc C s� t |�}t |�}|j|jkr dS |jdkrL|jdkrL|jdkrL|jd krLdS |j|jk}|j|jk}tj|jd�df}| r�|j|kr�|j|kr�dS |p�|S ) zFDecide whether Authorization header should be removed when redirectingTZhttp�P N�https� F)r> N)r@ N)r Zhostname�schemeZportr r3 )r; Zold_urlZnew_urlZ old_parsedZ new_parsedZ changed_portZchanged_schemeZ default_portr& r& r* �should_strip_authv s z&SessionRedirectMixin.should_strip_authFNTc k sd g } | j |�} t|j�j} �xB| �r^|j� } | j|� | dd� |_y |j W n( tt t fk rv |j j dd� Y nX t |j�| jkr�td| j |d��|j� | jd�r�t|j�}dt|j�| f } t| �}|jd kr�| r�|j| d �}n |jr�|j} |j� } |j�st|jt| ��} nt| �} t| �| _| j| |� |jtj tj fk�rtd}x |D ]}| j j |d� �qVW d| _ | j }y |d= W n t!k �r� Y nX t"| j#||j � t$| j#| j%� | j&| j#� | j'| |�}| j(| |� | j)dk �o�d |k�p�d |k}|�r t*| � | }|�r |V q | j+|f|||||dd�| ��}t"| j%| |j � | j |�} |V q W dS )zBReceives a Response. Returns a generator of Responses or Requests.r NF)Zdecode_contentzExceeded %s redirects.)r2 z//z%s:%s� )�fragment�Content-Length� Content-Type�Transfer-EncodingZCookie)�stream�timeout�verify�cert�proxies�allow_redirects)rE rF rG ),r= r �urlrD �copy�append�history�contentr r � RuntimeError�raw�read�len� max_redirectsr �close� startswithr rA �_replaceZgeturlZnetlocr r �rebuild_method� status_coder$ Ztemporary_redirectZpermanent_redirectr9 �popZbody�KeyErrorr Z_cookiesr �cookiesZprepare_cookies�rebuild_proxies� rebuild_authZ_body_positionr# �send)r; r< �reqrH rI rJ rK rL �yield_requestsZadapter_kwargsZhistrN Zprevious_fragment�prepared_requestZ parsed_rurlZparsedZpurged_headers�headerr9 Z rewindabler& r& r* �resolve_redirects� s| z&SessionRedirectMixin.resolve_redirectsc C sR |j }|j}d|kr*| j|jj|�r*|d= | jr8t|�nd}|dk rN|j|� 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. Z AuthorizationN)r9 rN rB �request� trust_envr Z prepare_auth)r; re r2 r9 rN Znew_authr& r& r* ra s z!SessionRedirectMixin.rebuild_authc C s� |dk r |ni }|j }|j}t|�j}|j� }|jd�}t||d�}| jr~| r~t||d�} | j|| jd��} | r~|j || � d|kr�|d= yt || �\} } W n t k r� d\} } Y nX |j d� r�| 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 N�no_proxy)rj �allzProxy-Authorizationr? )NN)r9 rN r rA rO r3 r! ri r � setdefaultr" r^ rY r ) r; re rL r9 rN rA Z new_proxiesrj Z bypass_proxyZenviron_proxies�proxyZusernameZpasswordr& r& r* r` s* z$SessionRedirectMixin.rebuild_proxiesc C sX |j }|jtjkr |dkr d}|jtjkr6|dkr6d}|jtjkrN|dkrNd}||_ dS )z�When being redirected we may want to change the method of the request based on certain specs or browser behavior. �HEAD�GET�POSTN)�methodr\ r$ Z see_other�foundZmoved)r; re r2 rq r& r& r* r[ ? s z#SessionRedirectMixin.rebuild_method)FNTNNF) �__name__� __module__� __qualname__r= rB rg ra r` r[ r& r& r& r* r5 _ s p+r5 c @ s� e Zd ZdZdddddddd d d d d dg Zdd� Zdd� Zdd� Zdd� Zd7dd�Z dd � Z d d � Z d d � Z d8d!d"�Z d9d#d$�Zd:d%d&�Zd'd(� Zd)d*� Zd+d,� Zd-d.� Zd/d0� Zd1d2� Zd3d4� Zd5d6� ZdS );�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]> r9 r_ �authrL �hooks�paramsrJ rK Zprefetch�adaptersrH ri rW c C sr t � | _d | _i | _t� | _i | _d| _d| _d | _ t | _ d| _ t i �| _t� | _| jdt� � | jdt� � d S )NFTzhttps://zhttp://)r r9 rw rL r rx ry rH rJ rK r rW ri r r_ r rz �mountr )r; r& r& r* �__init__o s zSession.__init__c C s | S )Nr& )r; r& r& r* � __enter__� s zSession.__enter__c G s | j � d S )N)rX )r; �argsr& r& r* �__exit__� s zSession.__exit__c C s� |j pi }t|tj�s t|�}ttt� | j �|�}|j}| jrV| rV| j rVt |j �}t � }|j |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 )r/ ) rq rN �files�data�jsonr9 ry rw r_ rx )r_ r, r Z CookieJarr r r rw ri r rN r Zpreparerq �upperr� r� r� r1 r9 r ry r4 rx )r; rh r_ Zmerged_cookiesrw �pr& r& r* �prepare_request� s* zSession.prepare_requestNTc C st t |j� ||||pi ||p i ||| d� }| j|�}| p8i } | j|j| | ||�}| | d�}|j|� | j|f|�}|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 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``. :param cert: (optional) if String, path to ssl client cert file (.pem). If Tuple, ('cert', 'key') pair. :rtype: requests.Response ) rq rN r9 r� r� r� ry rw r_ rx )rI rM )r r� r� �merge_environment_settingsrN r- rb )r; rq rN ry r� r9 r_ r� rw rI rM rL rx rH rJ rK r� rc ZprepZsettingsZ send_kwargsr< r& r& r* rh � s( ) zSession.requestc K s |j dd� | jd|f|�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 rM Tro )rl rh )r; rN �kwargsr& r& r* r3 s z Session.getc K s |j dd� | jd|f|�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 rM TZOPTIONS)rl rh )r; rN r� r& r& r* �options& s zSession.optionsc K s |j dd� | jd|f|�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 rM Frn )rl rh )r; rN r� r& r& r* �head1 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 rp )r� r� )rh )r; rN r� r� r� r& r& r* �post< 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 ZPUTr� )rh )r; rN r� r� r& r& r* �putI 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 ZPATCHr� )rh )r; rN r� r� r& r& r* �patchU s z Session.patchc K s | j d|f|�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 ZDELETE)rh )r; rN r� r& r& r* �deletea s zSession.deletec K s~ |j d| j� |j d| j� |j d| j� |j d| j� t|t�rJtd��|jdd�}|j d�}|j }| j |j d�}t � }|j|f|�}t � | } t| d �|_td ||f|�}|jr�x |jD ]} t| j| j| j� q�W t| j||j� | j||f|�} |�r d d � | D �ng } | �r.| jd |� | j� }| |_|�sny"t| j||fddi|���|_W n tk �rl Y nX |�sz|j |S )zISend a given PreparedRequest. :rtype: requests.Response rH rJ rK rL z#You can only send PreparedRequests.rM T)rN )Zsecondsr2 c S s g | ]}|�qS r& r& )r' r< r& r& r* r+ � s z Session.send.<locals>.<listcomp>r rd ) rl rH rJ rK rL r, r � ValueErrorr] r3 rx � get_adapterrN �preferred_clockrb r �elapsedr rQ r r_ rh rT rg �insert�nextZ_next� StopIterationrR ) r; rh r� rM rH rx �adapter�start�rr� r< �genrQ r& r& r* rb k sB "z Session.sendc C s� | j rr|dk r|jd�nd}t||d�}x |j� D ]\}} |j|| � q2W |dksZ|dkrrtjjd�pptjjd�}t|| j�}t|| j �}t|| j �}t|| j �}||||d�S )z^ Check the environment and merge it with some settings. :rtype: dict Nrj )rj TZREQUESTS_CA_BUNDLEZCURL_CA_BUNDLE)rJ rL rH rK ) ri r3 r r. rl �os�environr1 rL rH rJ rK ) r; rN rL rH rJ rK rj Z env_proxiesr( r) r& r& r* r� � s z"Session.merge_environment_settingsc C s> x,| j j� D ] \}}|j� j|j� �r |S q W td| ��dS )z~ Returns the appropriate connection adapter for the given URL. :rtype: requests.adapters.BaseAdapter z*No connection adapters were found for '%s'N)rz r. �lowerrY r )r; rN �prefixr� r& r& r* r� � s zSession.get_adapterc C s x| j j� D ] }|j� q W dS )z+Closes all adapters and as such the sessionN)rz �valuesrX )r; r) r& r& r* rX � s z Session.closec sB || j � < � fdd�| j D �}x |D ]}| j j|�| j |< q$W 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& )rV )r' r( )r� r& r* r+ � s z!Session.mount.<locals>.<listcomp>N)rz r] )r; r� r� Z keys_to_mover0 r& )r� r* r{ � s z Session.mountc s � fdd�� j D �}|S )Nc s i | ]}t � |d �|�qS )N)�getattr)r' �attr)r; r& r* � <dictcomp>� s z(Session.__getstate__.<locals>.<dictcomp>)� __attrs__)r; �stater& )r; r* � __getstate__� s zSession.__getstate__c C s& x |j � D ]\}}t| ||� q W d S )N)r. �setattr)r; r� r� �valuer& r& r* � __setstate__� s zSession.__setstate__)NNNNNNNTNNNNNN)NN)N)N)rs rt ru �__doc__r� r| r} r r� rh r3 r� r� r� r� r� r� rb r� r� rX r{ r� r� r& r& r& r* rv V s2 7) D I rv 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 )rv r& r& r& r* �session� s r� )>r� r� �sysZtimeZdatetimer rw r �compatr r r r r r r_ r r r r Zmodelsr r r rx r r Z_internal_utilsr Zutilsr r r � exceptionsr r r r Z structuresr rz r r r r r! r" r# Z status_codesr$ r% �platformZ perf_counterr� �AttributeErrorZclockr1 r4 �objectr5 rv r� r& r& r& r* �<module> s@ x %