U
    _r                     @   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rVz
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;Z<G dd de<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).
    N)	timedelta)OrderedDict   )_basic_auth_str)	cookielibis_py3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_STATIwin32c                 C   sp   |dkr| S | dkr|S t |tr,t | ts0| S |t|}|t|  dd | D }|D ]
}||= q`|S )zDetermines 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 ).0kvr(   r(   P/home/toby/toby_env/lib/python3.8/site-packages/pip/_vendor/requests/sessions.py
<listcomp>J   s      z!merge_setting.<locals>.<listcomp>)
isinstancer
   r   updateitems)Zrequest_settingZsession_setting
dict_classZmerged_settingZ	none_keyskeyr(   r(   r,   merge_setting2   s    r3   c                 C   s@   |dks| dg kr| S | dks0|  dg kr4|S t| ||S )zProperly merges both requests and session hooks.

    This is necessary because when request_hooks == {'response': []}, the
    merge breaks Session hooks entirely.
    Nresponse)getr3   )Zrequest_hooksZsession_hooksr1   r(   r(   r,   merge_hooksQ   s
    r6   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 )SessionRedirectMixinc                 C   s,   |j r(|jd }tr|d}t|dS dS )z7Receives a Response. Returns a redirect URI or ``None``locationlatin1utf8N)is_redirectheadersr   encoder   )selfrespr8   r(   r(   r,   get_redirect_targetb   s    


z(SessionRedirectMixin.get_redirect_targetc                 C   s   t |}t |}|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rdS |p|S )zFDecide whether Authorization header should be removed when redirectingThttp)P   Nhttps)i  NFN)r	   hostnameschemeportr   r5   )r>   Zold_urlZnew_urlZ
old_parsedZ
new_parsedZchanged_portZchanged_schemedefault_portr(   r(   r,   should_strip_authw   s$    z&SessionRedirectMixin.should_strip_authFNTc	              
   k   sH  g }
|  |}t|jj}|rD| }|
| |
dd |_z
|j W n( tt	t
fk
rr   |jjdd Y nX t|j| jkrtd| j|d|  |drt|j}dt|j|g}t|}|jd	kr|r|j|d
}n|jr|j}| }|jst|jt|}nt|}t||_| || |jtjtjfkrpd}|D ]}|j !|d qTd|_"|j }|!dd t#|j$||j t%|j$| j& |'|j$ | (||}| )|| |j*dk	od|kpd|k}|rt+| |}|r|V  q| j,|f|||||dd|	}t#| j&||j |  |}|V  qdS )zBReceives a Response. Returns a generator of Responses or Requests.r   NF)decode_contentzExceeded {} redirects.)r4   z//: )fragment)Content-LengthzContent-TypeTransfer-EncodingCookierM   rN   )streamtimeoutverifycertproxiesallow_redirects)-r@   r	   urlrL   copyappendhistorycontentr   r   RuntimeErrorrawreadlenmax_redirectsr   formatclose
startswithjoinr   rE   _replacegeturlnetlocr   r   rebuild_methodstatus_coder$   temporary_redirectpermanent_redirectr<   popbodyr   _cookiesr   cookiesprepare_cookiesrebuild_proxiesrebuild_auth_body_positionr#   send)r>   r?   reqrP   rQ   rR   rS   rT   yield_requestsZadapter_kwargsZhistrV   Zprevious_fragmentprepared_requestZparsed_rurlparsedZpurged_headersheaderr<   Z
rewindabler(   r(   r,   resolve_redirects   s~    






z&SessionRedirectMixin.resolve_redirectsc                 C   sR   |j }|j}d|kr*| |jj|r*|d= | jr8t|nd}|dk	rN|| dS )zWhen 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<   rV   rH   request	trust_envr    prepare_auth)r>   rv   r4   r<   rV   Znew_authr(   r(   r,   rq      s    z!SessionRedirectMixin.rebuild_authc                 C   s   |dk	r|ni }|j }|j}t|j}| }|d}t||d}| jr||s|t||d}	|	||	d}
|
r||	||
 d|kr|d= zt
|| \}}W n tk
r   d\}}Y nX |r|rt|||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r~   allzProxy-Authorization)NN)r<   rV   r	   rE   rW   r5   r!   r|   r   
setdefaultr"   KeyErrorr   )r>   rv   rT   r<   rV   rE   Znew_proxiesr~   Zbypass_proxyZenviron_proxiesproxyusernamepasswordr(   r(   r,   rp     s*    


z$SessionRedirectMixin.rebuild_proxiesc                 C   sX   |j }|jtjkr|dkrd}|jtjkr6|dkr6d}|jtjkrN|dkrNd}||_ dS )zWhen being redirected we may want to change the method of the request
        based on certain specs or browser behavior.
        HEADGETPOSTN)methodrh   r$   	see_otherfoundmoved)r>   rv   r4   r   r(   r(   r,   rg   :  s    z#SessionRedirectMixin.rebuild_method)FNTNNF)	__name__
__module____qualname__r@   rH   ry   rq   rp   rg   r(   r(   r(   r,   r7   `   s           
n)r7   c                   @   s   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 ):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<   rn   authrT   hooksparamsrR   rS   adaptersrP   r|   r_   c                 C   sr   t  | _d | _i | _t | _i | _d| _d| _d | _	t
| _d| _ti | _t | _| dt  | dt  d S )NFTzhttps://zhttp://)r   r<   r   rT   r   r   r   rP   rR   rS   r   r_   r|   r   rn   r   r   mountr   r>   r(   r(   r,   __init__j  s    
zSession.__init__c                 C   s   | S r'   r(   r   r(   r(   r,   	__enter__  s    zSession.__enter__c                 G   s   |    d S r'   )ra   )r>   argsr(   r(   r,   __exit__  s    zSession.__exit__c                 C   s   |j pi }t|tjst|}ttt | j |}|j}| jrR|sR| jsRt	|j
}t }|j|j |j
|j|j|jt|j| jtd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
        )r1   )
r   rV   filesdatajsonr<   r   r   rn   r   )rn   r.   r   	CookieJarr   r   r   r   r|   r    rV   r   preparer   upperr   r   r   r3   r<   r   r   r6   r   )r>   r{   rn   Zmerged_cookiesr   pr(   r(   r,   prepare_request  s0    

 

zSession.prepare_requestNTc                 C   st   t | ||||pi ||pi |||d
}| |}|p8i }| |j||||}|	|
d}|| | 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
        )
r   rV   r<   r   r   r   r   r   rn   r   )rQ   rU   )r   r   r   merge_environment_settingsrV   r/   rs   )r>   r   rV   r   r   r<   rn   r   r   rQ   rU   rT   r   rP   rR   rS   r   rt   prepZsettingsZsend_kwargsr?   r(   r(   r,   r{     s6    )
    
zSession.requestc                 K   s   | dd | jd|f|S )zSends 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
        rU   Tr   r   r{   r>   rV   kwargsr(   r(   r,   r5     s    zSession.getc                 K   s   | dd | jd|f|S )zSends 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
        rU   TOPTIONSr   r   r(   r(   r,   options!  s    zSession.optionsc                 K   s   | dd | jd|f|S )zSends 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
        rU   Fr   r   r   r(   r(   r,   head,  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   r{   )r>   rV   r   r   r   r(   r(   r,   post7  s    zSession.postc                 K   s   | j d|fd|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>   rV   r   r   r(   r(   r,   putD  s    
zSession.putc                 K   s   | j d|fd|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,   patchP  s    
zSession.patchc                 K   s   | j d|f|S )zSends 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    zSession.deletec                 K   s|  | d| j | d| j | d| j | d| j t|trJtd|dd}|	d}|j
}| j|jd}t }|j|f|}t | }	t|	d	|_td
||f|}|jr|jD ]}
t| j|
j|
j qt| j||j |r| j||f|}dd |D }ng }|r,|d| | }||_|slz"t| j||fddi||_W n tk
rj   Y nX |sx|j |S )zISend a given PreparedRequest.

        :rtype: requests.Response
        rP   rR   rS   rT   z#You can only send PreparedRequests.rU   T)rV   )secondsr4   c                 S   s   g | ]}|qS r(   r(   )r)   r?   r(   r(   r,   r-     s     z Session.send.<locals>.<listcomp>r   ru   )r   rP   rR   rS   rT   r.   r   
ValueErrorrk   r5   r   get_adapterrV   preferred_clockrs   r   elapsedr   rY   r   rn   r{   r\   ry   insertnext_nextStopIterationrZ   )r>   r{   r   rU   rP   r   adapterstartrr   r?   genrY   r(   r(   r,   rs   f  sF    



"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}t|| j	}t|| j
}t|| j}||||dS )z^
        Check the environment and merge it with some settings.

        :rtype: dict
        Nr~   r   TZREQUESTS_CA_BUNDLEZCURL_CA_BUNDLE)rR   rT   rP   rS   )r|   r5   r   r0   r   osenvironr3   rT   rP   rR   rS   )
r>   rV   rT   rP   rR   rS   r~   Zenv_proxiesr*   r+   r(   r(   r,   r     s     
z"Session.merge_environment_settingsc                 C   s@   | j  D ]"\}}| | r
|  S q
td|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   r0   lowerrb   r   r`   )r>   rV   prefixr   r(   r(   r,   r     s    
zSession.get_adapterc                 C   s   | j  D ]}|  q
dS )z+Closes all adapters and as such the sessionN)r   valuesra   )r>   r+   r(   r(   r,   ra     s    zSession.closec                    s>   || j  <  fdd| j D }|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 |t  k r|qS r(   )r^   )r)   r*   r   r(   r,   r-     s      z!Session.mount.<locals>.<listcomp>N)r   rk   )r>   r   r   Zkeys_to_mover2   r(   r   r,   r     s    
zSession.mountc                    s    fdd j D }|S )Nc                    s   i | ]}|t  |d qS r'   )getattr)r)   attrr   r(   r,   
<dictcomp>  s      z(Session.__getstate__.<locals>.<dictcomp>)	__attrs__)r>   stater(   r   r,   __getstate__  s    zSession.__getstate__c                 C   s"   |  D ]\}}t| || qd S r'   )r0   setattr)r>   r   r   valuer(   r(   r,   __setstate__  s    zSession.__setstate__)NNNNNNNTNNNNNN)NN)N)N)r   r   r   __doc__r   r   r   r   r   r{   r5   r   r   r   r   r   r   rs   r   r   ra   r   r   r   r(   r(   r(   r,   r   Q  s^            7)                         
G



K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,   session  s    r   )?r   r   systimedatetimer   collectionsr   r   r   compatr   r   r   r	   r
   rn   r   r   r   r   modelsr   r   r   r   r   r   _internal_utilsr   utilsr   r   r   
exceptionsr   r   r   r   
structuresr   r   r   r   r   r    r!   r"   r#   status_codesr$   r%   platformperf_counterr   AttributeErrorZclockr3   r6   objectr7   r   r   r(   r(   r(   r,   <module>   sB    
 r   '