B
    `’»dQr  ã               @   s   d Z ddlZddlZddlZddlmZ ddlmZ ddlm	Z	 ddl
mZmZmZmZmZ ddlmZmZmZmZ dd	lmZmZ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#m$Z$m%Z%m&Z& ddl'm(Z( ddl)m*Z* ddlm+Z+m,Z,m-Z-m.Z.m/Z/m0Z0 ddl1m2Z2 ddlm3Z3 ej4dkrVy
ej5Z6W n e7k
rR   ej8Z6Y nX nejZ6efdd„Z9efdd„Z:G dd„ de;ƒZ<G dd„ de<ƒZ=dd„ Z>dS )z“
requests.session
~~~~~~~~~~~~~~~~

This module provides a Session object to manage and persist settings across
requests (cookies, auth, proxies).
é    N)Ú	timedelta)ÚOrderedDicté   )Ú_basic_auth_str)Ú	cookielibÚis_py3ÚurljoinÚurlparseÚMapping)Úcookiejar_from_dictÚextract_cookies_to_jarÚRequestsCookieJarÚmerge_cookies)ÚRequestÚPreparedRequestÚDEFAULT_REDIRECT_LIMIT)Údefault_hooksÚdispatch_hook)Úto_native_string)Úto_key_val_listÚdefault_headersÚDEFAULT_PORTS)ÚTooManyRedirectsÚInvalidSchemaÚChunkedEncodingErrorÚContentDecodingError)ÚCaseInsensitiveDict)ÚHTTPAdapter)Úrequote_uriÚget_environ_proxiesÚget_netrc_authÚshould_bypass_proxiesÚget_auth_from_urlÚrewind_body)Úcodes)ÚREDIRECT_STATIÚwin32c             C   st   |dkr| S | dkr|S t |tƒr,t | tƒs0| S |t|ƒƒ}| t| ƒ¡ dd„ | ¡ D ƒ}x|D ]
}||= qbW |S )zèDetermines 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 kr|‘qS )N© )Ú.0ÚkÚvr'   r'   úA/tmp/pip-unpacked-wheel-hu9qqap1/pip/_vendor/requests/sessions.pyú
<listcomp>J   s    z!merge_setting.<locals>.<listcomp>)Ú
isinstancer
   r   ÚupdateÚitems)Úrequest_settingÚsession_settingÚ
dict_classÚmerged_settingÚ	none_keysÚkeyr'   r'   r+   Úmerge_setting2   s    



r6   c             C   s@   |dks|  d¡g kr| S | dks0|   d¡g kr4|S t| ||ƒS )z©Properly merges both requests and session hooks.

    This is necessary because when request_hooks == {'response': []}, the
    merge breaks Session hooks entirely.
    NÚresponse)Úgetr6   )Úrequest_hooksÚsession_hooksr2   r'   r'   r+   Úmerge_hooksQ   s
    r;   c               @   s>   e Zd Zdd„ Zdd„ Zddd	„Zd
d„ Zdd„ Zdd„ ZdS )ÚSessionRedirectMixinc             C   s,   |j r(|jd }tr| d¡}t|dƒS dS )z7Receives a Response. Returns a redirect URI or ``None``ÚlocationÚlatin1Úutf8N)Úis_redirectÚheadersr   Úencoder   )ÚselfÚrespr=   r'   r'   r+   Úget_redirect_targetb   s    


z(SessionRedirectMixin.get_redirect_targetc             C   sš   t |ƒ}t |ƒ}|j|jkr dS |jdkrL|jdkrL|jdkrL|jdkrLdS |j|jk}|j|jk}t |jd¡df}|s’|j|kr’|j|kr’dS |p˜|S )zFDecide whether Authorization header should be removed when redirectingTÚhttp)éP   NÚhttps)i»  NFN)r	   ÚhostnameÚschemeÚportr   r8   )rC   Úold_urlÚnew_urlÚ
old_parsedÚ
new_parsedÚchanged_portÚchanged_schemeÚdefault_portr'   r'   r+   Úshould_strip_authw   s    
z&SessionRedirectMixin.should_strip_authFNTc	          
   k   sR  g }
|   |¡}t|jƒj}x0|rL| ¡ }|
 |¡ |
dd… |_y
|j W n( tt	t
fk
rv   |jjdd Y nX t|jƒ| jkrœtd | j¡|d‚| ¡  | d¡rÌt|jƒ}d t|jƒ|g¡}t|ƒ}|jd	krð|rð|j|d
}n|jrü|j}| ¡ }|jst|jt|ƒƒ}nt|ƒ}t|ƒ|_|  ||¡ |jtjtjfkrxd}x|D ]}|j  !|d¡ qZW d|_"|j }| !dd¡ t#|j$||jƒ t%|j$| j&ƒ | '|j$¡ |  (||¡}|  )||¡ |j*dk	oèd|kpèd|k}|røt+|ƒ |}|r
|V  q| j,|f|||||ddœ|	—Ž}t#| j&||jƒ |   |¡}|V  qW dS )zBReceives a Response. Returns a generator of Responses or Requests.r   NF)Údecode_contentzExceeded {} redirects.)r7   z//ú:Ú )Úfragment)zContent-LengthzContent-TypezTransfer-EncodingÚCookiezContent-LengthzTransfer-Encoding)ÚstreamÚtimeoutÚverifyÚcertÚproxiesÚallow_redirects)-rE   r	   ÚurlrW   ÚcopyÚappendÚhistoryÚcontentr   r   ÚRuntimeErrorÚrawÚreadÚlenÚmax_redirectsr   ÚformatÚcloseÚ
startswithÚjoinr   rJ   Ú_replaceÚgeturlÚnetlocr   r   Úrebuild_methodÚstatus_coder$   Útemporary_redirectÚpermanent_redirectrA   ÚpopÚbodyr   Ú_cookiesr   ÚcookiesÚprepare_cookiesÚrebuild_proxiesÚrebuild_authÚ_body_positionr#   Úsend)rC   rD   ÚreqrY   rZ   r[   r\   r]   Úyield_requestsÚadapter_kwargsÚhistr_   Úprevious_fragmentÚprepared_requestÚparsed_rurlÚparsedÚpurged_headersÚheaderrA   Ú
rewindabler'   r'   r+   Úresolve_redirects   sv    








z&SessionRedirectMixin.resolve_redirectsc             C   sR   |j }|j}d|kr*|  |jj|¡r*|d= | jr8t|ƒnd}|dk	rN| |¡ dS )zéWhen 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.
        ÚAuthorizationN)rA   r_   rS   ÚrequestÚ	trust_envr    Úprepare_auth)rC   r‚   r7   rA   r_   Únew_authr'   r'   r+   rz   þ   s    z!SessionRedirectMixin.rebuild_authc             C   sÖ   |dk	r|ni }|j }|j}t|ƒj}| ¡ }| d¡}t||d}| jr||s|t||d}	|	 ||	 d¡¡}
|
r|| 	||
¡ d|krŠ|d= yt
|| ƒ\}}W n tk
rº   d\}}Y nX |rÒ|rÒt||ƒ|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
        NÚno_proxy)rŽ   ÚallzProxy-Authorization)NN)rA   r_   r	   rJ   r`   r8   r!   r‹   r   Ú
setdefaultr"   ÚKeyErrorr   )rC   r‚   r]   rA   r_   rJ   Únew_proxiesrŽ   Úbypass_proxyÚenviron_proxiesÚproxyÚusernameÚpasswordr'   r'   r+   ry     s*    


z$SessionRedirectMixin.rebuild_proxiesc             C   sX   |j }|jtjkr|dkrd}|jtjkr6|dkr6d}|jtjkrN|dkrNd}||_ dS )z‚When being redirected we may want to change the method of the request
        based on certain specs or browser behavior.
        ÚHEADÚGETÚPOSTN)Úmethodrq   r$   Ú	see_otherÚfoundÚmoved)rC   r‚   r7   r›   r'   r'   r+   rp   :  s    z#SessionRedirectMixin.rebuild_method)FNTNNF)	Ú__name__Ú
__module__Ú__qualname__rE   rS   rˆ   rz   ry   rp   r'   r'   r'   r+   r<   `   s    
m)r<   c               @   sÌ   e Zd ZdZdddddddd	d
dddgZdd„ Zdd„ Zdd„ Zdd„ Zd6dd„Z	dd„ Z
dd„ Zdd„ Zd7d d!„Zd8d"d#„Zd9d$d%„Zd&d'„ Zd(d)„ Zd*d+„ Zd,d-„ Zd.d/„ Zd0d1„ Zd2d3„ Zd4d5„ ZdS ):Ú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]>
    rA   rw   Úauthr]   ÚhooksÚparamsr[   r\   ÚadaptersrY   r‹   rh   c             C   sr   t ƒ | _d | _i | _tƒ | _i | _d| _d| _d | _	t
| _d| _ti ƒ| _tƒ | _|  dtƒ ¡ |  dtƒ ¡ d S )NFTzhttps://zhttp://)r   rA   r£   r]   r   r¤   r¥   rY   r[   r\   r   rh   r‹   r   rw   r   r¦   Úmountr   )rC   r'   r'   r+   Ú__init__j  s    
zSession.__init__c             C   s   | S )Nr'   )rC   r'   r'   r+   Ú	__enter__¡  s    zSession.__enter__c             G   s   |   ¡  d S )N)rj   )rC   Úargsr'   r'   r+   Ú__exit__¤  s    zSession.__exit__c             C   s²   |j pi }t|tjƒst|ƒ}tttƒ | j ƒ|ƒ}|j}| jrR|sR| jsRt	|j
ƒ}tƒ }|j|j ¡ |j
|j|j|jt|j| jtdt|j| jƒt|| jƒ|t|j| jƒ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›   r_   ÚfilesÚdataÚjsonrA   r¥   r£   rw   r¤   )rw   r-   r   Ú	CookieJarr   r   r   r£   r‹   r    r_   r   Úpreparer›   Úupperr¬   r­   r®   r6   rA   r   r¥   r;   r¤   )rC   rŠ   rw   Úmerged_cookiesr£   Úpr'   r'   r+   Úprepare_request§  s*    



zSession.prepare_requestNTc             C   st   t | ¡ ||||pi ||pi |||d
}|  |¡}|p8i }|  |j||||¡}|	|
dœ}| |¡ | j|f|Ž}|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
        )
r›   r_   rA   r¬   r­   r®   r¥   r£   rw   r¤   )rZ   r^   )r   r±   r´   Úmerge_environment_settingsr_   r.   r|   )rC   r›   r_   r¥   r­   rA   rw   r¬   r£   rZ   r^   r]   r¤   rY   r[   r\   r®   r}   ÚprepÚsettingsÚsend_kwargsrD   r'   r'   r+   rŠ   Ï  s(    )

zSession.requestc             K   s   |  dd¡ | jd|f|ŽS )zåSends 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
        r^   Tr™   )r   rŠ   )rC   r_   Úkwargsr'   r'   r+   r8     s    zSession.getc             K   s   |  dd¡ | jd|f|ŽS )zéSends 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
        r^   TÚOPTIONS)r   rŠ   )rC   r_   r¹   r'   r'   r+   Úoptions!  s    zSession.optionsc             K   s   |  dd¡ | jd|f|ŽS )zæSends 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
        r^   Fr˜   )r   rŠ   )rC   r_   r¹   r'   r'   r+   Úhead,  s    zSession.headc             K   s   | j d|f||dœ|—ŽS )aÈ  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
        rš   )r­   r®   )rŠ   )rC   r_   r­   r®   r¹   r'   r'   r+   Úpost7  s    zSession.postc             K   s   | j d|fd|i|—Ž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
        ÚPUTr­   )rŠ   )rC   r_   r­   r¹   r'   r'   r+   ÚputD  s    
zSession.putc             K   s   | j d|fd|i|—Ž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
        ÚPATCHr­   )rŠ   )rC   r_   r­   r¹   r'   r'   r+   ÚpatchP  s    
zSession.patchc             K   s   | j d|f|ŽS )zèSends 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
        ÚDELETE)rŠ   )rC   r_   r¹   r'   r'   r+   Údelete\  s    zSession.deletec             K   s~  |  d| j¡ |  d| j¡ |  d| j¡ |  d| j¡ t|tƒrJtdƒ‚| dd¡}| 	d¡}|j
}| j|jd}tƒ }|j|f|Ž}tƒ | }	t|	d	|_td
||f|Ž}|jrÖx |jD ]}
t| j|
j|
jƒ q¼W t| j||jƒ | j||f|Ž}|r
dd„ |D ƒng }|r.| d|¡ | ¡ }||_|sny"t| j||fddi|—Žƒ|_W n tk
rl   Y nX |sz|j |S )zISend a given PreparedRequest.

        :rtype: requests.Response
        rY   r[   r\   r]   z#You can only send PreparedRequests.r^   T)r_   )Úsecondsr7   c             S   s   g | ]}|‘qS r'   r'   )r(   rD   r'   r'   r+   r,   ™  s    z Session.send.<locals>.<listcomp>r   r~   )r   rY   r[   r\   r]   r-   r   Ú
ValueErrorrt   r8   r¤   Úget_adapterr_   Úpreferred_clockr|   r   Úelapsedr   rb   r   rw   rŠ   re   rˆ   ÚinsertÚnextÚ_nextÚStopIterationrc   )rC   rŠ   r¹   r^   rY   r¤   ÚadapterÚstartÚrrÈ   rD   Úgenrb   r'   r'   r+   r|   f  sB    


"zSession.sendc       
      C   s°   | j rr|dk	r| d¡nd}t||d}x | ¡ D ]\}}	| ||	¡ q2W |dksZ|dkrrtj d¡pptj d¡}t|| jƒ}t|| j	ƒ}t|| j
ƒ}t|| jƒ}||||dœS )z^
        Check the environment and merge it with some settings.

        :rtype: dict
        NrŽ   )rŽ   TÚREQUESTS_CA_BUNDLEÚCURL_CA_BUNDLE)r[   r]   rY   r\   )r‹   r8   r   r/   r   ÚosÚenvironr6   r]   rY   r[   r\   )
rC   r_   r]   rY   r[   r\   rŽ   Úenv_proxiesr)   r*   r'   r'   r+   rµ   ¯  s    z"Session.merge_environment_settingsc             C   s@   x,| j  ¡ D ]\}}| ¡  | ¡ ¡r|S qW td |¡ƒ‚dS )z~
        Returns the appropriate connection adapter for the given URL.

        :rtype: requests.adapters.BaseAdapter
        z*No connection adapters were found for {!r}N)r¦   r/   Úlowerrk   r   ri   )rC   r_   ÚprefixrÍ   r'   r'   r+   rÆ   Ì  s    zSession.get_adapterc             C   s    x| j  ¡ D ]}| ¡  qW dS )z+Closes all adapters and as such the sessionN)r¦   Úvaluesrj   )rC   r*   r'   r'   r+   rj   Ú  s    zSession.closec                sB   || j ˆ < ‡ fdd„| j D ƒ}x|D ]}| j  |¡| j |< q$W dS )zwRegisters a connection adapter to a prefix.

        Adapters are sorted in descending order by prefix length.
        c                s    g | ]}t |ƒt ˆ ƒk r|‘qS r'   )rg   )r(   r)   )r×   r'   r+   r,   å  s    z!Session.mount.<locals>.<listcomp>N)r¦   rt   )rC   r×   rÍ   Úkeys_to_mover5   r'   )r×   r+   r§   ß  s    

zSession.mountc                s   ‡ fdd„ˆ j D ƒ}|S )Nc                s   i | ]}t ˆ |d ƒ|“qS )N)Úgetattr)r(   Úattr)rC   r'   r+   ú
<dictcomp>ë  s    z(Session.__getstate__.<locals>.<dictcomp>)Ú	__attrs__)rC   Ústater'   )rC   r+   Ú__getstate__ê  s    zSession.__getstate__c             C   s&   x |  ¡ D ]\}}t| ||ƒ q
W d S )N)r/   Úsetattr)rC   rÞ   rÛ   Úvaluer'   r'   r+   Ú__setstate__î  s    zSession.__setstate__)NNNNNNNTNNNNNN)NN)N)N)rŸ   r    r¡   Ú__doc__rÝ   r¨   r©   r«   r´   rŠ   r8   r»   r¼   r½   r¿   rÁ   rÃ   r|   rµ   rÆ   rj   r§   rß   râ   r'   r'   r'   r+   r¢   Q  s2   7)  
D



Ir¢   c               C   s   t ƒ 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+   Úsessionó  s    rä   )?rã   rÓ   ÚsysÚtimeÚdatetimer   Úcollectionsr   r£   r   Úcompatr   r   r   r	   r
   rw   r   r   r   r   Úmodelsr   r   r   r¤   r   r   Ú_internal_utilsr   Úutilsr   r   r   Ú
exceptionsr   r   r   r   Ú
structuresr   r¦   r   r   r   r    r!   r"   r#   Ústatus_codesr$   r%   ÚplatformÚperf_counterrÇ   ÚAttributeErrorÚclockr6   r;   Úobjectr<   r¢   rä   r'   r'   r'   r+   Ú<module>	   sB    
 r   %