U
    ¢÷HhUs  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	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.m/Z/ ddl0m1Z1 ddlm2Z2 ej3dk�rNz
ej4Z5W n e6k
�rJ   ej7Z5Y nX nejZ5efdd„Z8efdd„Z9G 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	timedeltaé   )Ú_basic_auth_str)Ú	cookielibÚis_py3ÚOrderedDictÚ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_STATIZwin32c                 C   sp   |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}|D ]
}||= q`|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'   ú3/usr/lib/python3/dist-packages/requests/sessions.pyÚ
<listcomp>I   s      z!merge_setting.<locals>.<listcomp>)Ú
isinstancer
   r   ÚupdateÚitems)Zrequest_settingZsession_settingÚ
dict_classZmerged_settingZ	none_keysÚkeyr'   r'   r+   Úmerge_setting1   s    ÿþr2   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getr2   )Zrequest_hooksZsession_hooksr0   r'   r'   r+   Úmerge_hooksP   s
    r5   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)Zis_redirectÚheadersr   Úencoder   )ÚselfÚrespr7   r'   r'   r+   Úget_redirect_targeta   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 redirectingTZhttp)éP   NÚhttps)i»  NFN)r	   ZhostnameÚschemeZportr   r4   )r<   Zold_urlZnew_urlZ
old_parsedZ
new_parsedZchanged_portZchanged_schemeZdefault_portr'   r'   r+   Úshould_strip_authv   s$    ÿÿÿz&SessionRedirectMixin.should_strip_authFNTc	              
   k   sZ  g }
|   |¡}t|jƒj}|�rV| ¡ }|
 |¡ |
dd… |_z
|j W n( tt	t
fk
rr   |jjdd� Y nX t|jƒ| jkr–td| j |d�‚| ¡  | d¡rÄt|jƒ}dt|jƒ|f }t|ƒ}|jd	krè|rè|j|d
�}n|jrô|j}| ¡ }|j�st|jt|ƒƒ}nt|ƒ}t|ƒ|_|  ||¡ |jtjtjfk�rld}|D ]}|j |d¡ �qPd|_ |j}z
|d= W n t!k
�r’   Y nX t"|j#||jƒ t$|j#| j%ƒ | &|j#¡ |  '||¡}|  (||¡ |j)dk	�oòd|k�pòd|k}|�rt*|ƒ |}|�r|V  q| j+|f|||||ddœ|	—Ž}t"| j%||jƒ |   |¡}|V  qdS )zBReceives a Response. Returns a generator of Responses or Requests.r   NF)Zdecode_contentzExceeded %s redirects.)r3   z//z%s:%sÚ )Úfragment)úContent-LengthzContent-TypeúTransfer-EncodingZCookierE   rF   )ÚstreamÚtimeoutÚverifyÚcertÚproxiesÚallow_redirects),r>   r	   ÚurlrD   ÚcopyÚappendÚhistoryÚcontentr   r   ÚRuntimeErrorÚrawÚreadÚlenÚmax_redirectsr   ÚcloseÚ
startswithr   rA   Ú_replaceZgeturlZnetlocr   r   Úrebuild_methodÚstatus_coder$   Ztemporary_redirectZpermanent_redirectr:   ÚpopZbodyÚKeyErrorr   Z_cookiesr   ÚcookiesZprepare_cookiesÚrebuild_proxiesÚrebuild_authZ_body_positionr#   Úsend)r<   r=   ÚreqrG   rH   rI   rJ   rK   Úyield_requestsZadapter_kwargsZhistrM   Zprevious_fragmentÚprepared_requestZparsed_rurlZparsedZpurged_headersÚheaderr:   Z
rewindabler'   r'   r+   Úresolve_redirects�   s„    






þÿùø
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.
        ZAuthorizationN)r:   rM   rB   ÚrequestÚ	trust_envr    Zprepare_auth)r<   rd   r3   r:   rM   Znew_authr'   r'   r+   r`      s    
z!SessionRedirectMixin.rebuild_authc                 C   sà   |dk	r|ni }|j }|j}t|ƒj}| ¡ }| d¡}t||d�}| jr||s|t||d�}	|	 ||	 d¡¡}
|
r|| 	||
¡ d|krŠ|d= zt
|| ƒ\}}W n tk
rº   d\}}Y nX | d¡sÜ|rÜ|rÜt||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©ri   ÚallzProxy-Authorization)NNr@   )r:   rM   r	   rA   rN   r4   r!   rh   r   Ú
setdefaultr"   r]   rX   r   )r<   rd   rK   r:   rM   rA   Znew_proxiesri   Zbypass_proxyZenviron_proxiesÚproxyZusernameZpasswordr'   r'   r+   r_     s*    


z$SessionRedirectMixin.rebuild_proxiesc                 C   sX   |j }|jtjkr|dkrd}|jtjkr6|dkr6d}|jtjkrN|dkrNd}||_ dS )z‚When being redirected we may want to change the method of the request
        based on certain specs or browser behavior.
        ÚHEADÚGETÚPOSTN)Úmethodr[   r$   Z	see_otherÚfoundZmoved)r<   rd   r3   rq   r'   r'   r+   rZ   ?  s    z#SessionRedirectMixin.rebuild_method)FNTNNF)	Ú__name__Ú
__module__Ú__qualname__r>   rB   rf   r`   r_   rZ   r'   r'   r'   r+   r6   _   s           ÿ
q+r6   c                   @   sÎ   e Zd ZdZd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d7dd„Z	dd„ Z
dd„ Zdd „ Zd8d!d"„Zd9d#d$„Zd:d%d&„Zd'd(„ Zd)d*„ Zd+d,„ Zd-d.„ Zd/d0„ Zd1d2„ Zd3d4„ Zd5d6„ 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]>
    r:   r^   ÚauthrK   ÚhooksÚparamsrI   rJ   ZprefetchÚadaptersrG   rh   rV   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   r:   rw   rK   r   rx   ry   rG   rI   rJ   r   rV   rh   r   r^   r   rz   Úmountr   ©r<   r'   r'   r+   Ú__init__o  s    
zSession.__init__c                 C   s   | S r&   r'   r|   r'   r'   r+   Ú	__enter__¦  s    zSession.__enter__c                 G   s   |   ¡  d S r&   )rW   )r<   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
        )r0   )
rq   rM   ÚfilesÚdataÚjsonr:   ry   rw   r^   rx   )r^   r-   r   Z	CookieJarr   r   r   rw   rh   r    rM   r   Zpreparerq   Úupperr�   r‚   rƒ   r2   r:   r   ry   r5   rx   )r<   rg   r^   Zmerged_cookiesrw   Úpr'   r'   r+   Úprepare_request¬  s0    

 ÿ

ö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
        )
rq   rM   r:   r�   r‚   rƒ   ry   rw   r^   rx   )rH   rL   )r   r„   r†   Úmerge_environment_settingsrM   r.   ra   )r<   rq   rM   ry   r‚   r:   r^   r�   rw   rH   rL   rK   rx   rG   rI   rJ   rƒ   rb   ZprepZsettingsZsend_kwargsr=   r'   r'   r+   rg   Ô  s6    )ö
    ÿþ
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
        rL   Tro   ©rl   rg   ©r<   rM   Úkwargsr'   r'   r+   r4     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
        rL   TZOPTIONSrˆ   r‰   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
        rL   Frn   rˆ   r‰   r'   r'   r+   Úhead1  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
        rp   )r‚   rƒ   ©rg   )r<   rM   r‚   rƒ   rŠ   r'   r'   r+   Úpost<  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
        ZPUTr‚   r�   ©r<   rM   r‚   rŠ   r'   r'   r+   ÚputI  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
        ZPATCHr‚   r�   r�   r'   r'   r+   ÚpatchU  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
        ZDELETEr�   r‰   r'   r'   r+   Údeletea  s    zSession.deletec                 K   sz  |  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rÒ|jD ]}
t| j|
j|
jƒ qºt| j||jƒ | j||f|Ž}|�rdd„ |D ƒng }|�r*| d|¡ | ¡ }||_|�sjz"t| j||fddi|—Žƒ|_W n tk
�rh   Y nX |�sv|j |S )zISend a given PreparedRequest.

        :rtype: requests.Response
        rG   rI   rJ   rK   z#You can only send PreparedRequests.rL   T)rM   )Zsecondsr3   c                 S   s   g | ]}|‘qS r'   r'   )r(   r=   r'   r'   r+   r,   ž  s     z Session.send.<locals>.<listcomp>r   rc   )rl   rG   rI   rJ   rK   r-   r   Ú
ValueErrorr\   r4   rx   Úget_adapterrM   Úpreferred_clockra   r   Úelapsedr   rP   r   r^   rg   rS   rf   ÚinsertÚnextZ_nextÚStopIterationrQ   )r<   rg   rŠ   rL   rG   rx   ÚadapterÚstartÚrr–   r=   ÚgenrP   r'   r'   r+   ra   k  sB    



"zSession.sendc           
      C   s¬   | j rn|dk	r| d¡nd}t||d�}| ¡ D ]\}}	| ||	¡ q0|dksV|dkrntj d¡plt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
        Nri   rj   TZREQUESTS_CA_BUNDLEZCURL_CA_BUNDLE)rI   rK   rG   rJ   )rh   r4   r   r/   rl   ÚosÚenvironr2   rK   rG   rI   rJ   )
r<   rM   rK   rG   rI   rJ   ri   Zenv_proxiesr)   r*   r'   r'   r+   r‡   ´  s     
ÿÿz"Session.merge_environment_settingsc                 C   s>   | j  ¡ D ]"\}}| ¡  | ¡ ¡r
|  S q
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 '%s'N)rz   r/   ÚlowerrX   r   )r<   rM   Úprefixrš   r'   r'   r+   r”   Ñ  s    
zSession.get_adapterc                 C   s   | j  ¡ D ]}| ¡  q
dS )z+Closes all adapters and as such the sessionN)rz   ÚvaluesrW   )r<   r*   r'   r'   r+   rW   ß  s    zSession.closec                    s>   || j ˆ < ‡ fdd„| j D ƒ}|D ]}| j  |¡| j |< q"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'   )rU   )r(   r)   ©r¡   r'   r+   r,   ê  s      z!Session.mount.<locals>.<listcomp>N)rz   r\   )r<   r¡   rš   Zkeys_to_mover1   r'   r£   r+   r{   ä  s    
zSession.mountc                    s   ‡ fdd„ˆ j D ƒ}|S )Nc                    s   i | ]}|t ˆ |d ƒ“qS r&   )Úgetattr)r(   Úattrr|   r'   r+   Ú
<dictcomp>ð  s      z(Session.__getstate__.<locals>.<dictcomp>)Ú	__attrs__)r<   Ústater'   r|   r+   Ú__getstate__ï  s    zSession.__getstate__c                 C   s"   |  ¡ D ]\}}t| ||ƒ qd S r&   )r/   Úsetattr)r<   r¨   r¥   Úvaluer'   r'   r+   Ú__setstate__ó  s    zSession.__setstate__)NNNNNNNTNNNNNN)NN)N)N)rs   rt   ru   Ú__doc__r§   r}   r~   r€   r†   rg   r4   r‹   rŒ   rŽ   r�   r‘   r’   ra   r‡   r”   rW   r{   r©   r¬   r'   r'   r'   r+   rv   V  s`             ý7)                         ý
G



Irv   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
    )rv   r'   r'   r'   r+   Úsessionø  s    r®   )>r­   rž   ÚsysÚtimeZdatetimer   rw   r   Úcompatr   r   r   r   r	   r
   r^   r   r   r   r   Zmodelsr   r   r   rx   r   r   Z_internal_utilsr   Zutilsr   r   r   Ú
exceptionsr   r   r   r   Z
structuresr   rz   r   r   r   r    r!   r"   r#   Zstatus_codesr$   r%   ÚplatformÚperf_counterr•   ÚAttributeErrorZclockr2   r5   Úobjectr6   rv   r®   r'   r'   r'   r+   Ú<module>   s@     
 x   %