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Z
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lmZ ddlmZmZmZmZmZmZmZm Z m!Z!m"Z"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/ dZ0e 1¡ Z2dddœZ3d 4e 5dedd�d ¡¡Z6ej7dk�rndd„ Z8dd„ Zdd„ Z9dd „ Z:dtd"d#„Z;d$d%„ Z<d&d'„ Z=ej>d(d)„ ƒZ?d*d+„ Z@d,d-„ ZAd.d/„ ZBd0d1„ ZCdud2d3„ZDd4d5„ ZEd6d7„ ZFd8d9„ ZGd:d;„ ZHd<d=„ ZId>d?„ ZJd@dA„ ZKdBdC„ ZLeMdDƒZNdEdF„ ZOdGdH„ ZPdIdJ„ ZQdKdL„ ZRdMdN„ ZSdOdP„ ZTej>dQdR„ ƒZUdSdT„ ZVdvdUdV„ZWdWdX„ ZXdwdYdZ„ZYdxd\d]„ZZd^d_„ Z[d`da„ Z\db ]dc¡Z^e^dd Z_e^de Z`dfdg„ Zadhdi„ Zbdjdk„ Zce ddl¡Zee ddm¡Zfdndo„ Zgdpdq„ Zhdrds„ ZidS )yz”
requests.utils
~~~~~~~~~~~~~~

This module provides utility functions that are used within Requests
that are also useful for external consumption.
é    N)ÚOrderedDict)Úmake_headers)Ú	parse_urlé   ©Ú__version__)Úcerts)Úto_native_string)Úparse_http_list)ÚquoteÚurlparseÚbytesÚstrÚunquoteÚ
getproxiesÚproxy_bypassÚ
urlunparseÚ
basestringÚinteger_typesÚis_py3Úproxy_bypass_environmentÚgetproxies_environmentÚMapping©Úcookiejar_from_dict)ÚCaseInsensitiveDict)Ú
InvalidURLÚInvalidHeaderÚFileModeWarningÚUnrewindableBodyError)z.netrcÚ_netrcéP   i»  )ÚhttpÚhttpsz, z,\s*T)Úaccept_encodingzaccept-encodingÚwin32c                 C   sð   zt rdd l}ndd l}W n ty.   Y dS 0 z6| |jd¡}t| |d¡d ƒ}| |d¡d }W n tyz   Y dS 0 |r„|sˆdS | 	d¡}|D ]T}|dkr°d| vr° d	S | 
dd
¡}| 
dd¡}| 
dd¡}t || tj¡r– d	S q–dS )Nr   Fz;Software\Microsoft\Windows\CurrentVersion\Internet SettingsZProxyEnableZProxyOverrideú;z<local>Ú.Tz\.Ú*z.*ú?)r   ÚwinregÚ_winregÚImportErrorÚOpenKeyÚHKEY_CURRENT_USERÚintÚQueryValueExÚOSErrorÚsplitÚreplaceÚreÚmatchÚI)Úhostr*   ZinternetSettingsZproxyEnableZproxyOverrideÚtest© r9   úW/home/httpd/docs/test/DocsMgr/lib/python3.9/site-packages/pip/_vendor/requests/utils.pyÚproxy_bypass_registry7   sF    
ÿÿÿÿÿ
r;   c                 C   s   t ƒ rt| ƒS t| ƒS dS )zšReturn True, if the host should be bypassed.

        Checks proxy settings gathered from the environment, if specified,
        or the registry.
        N)r   r   r;   )r7   r9   r9   r:   r   ^   s    r   c                 C   s   t | dƒr|  ¡ } | S )z/Returns an internal sequence dictionary update.Úitems)Úhasattrr<   )Údr9   r9   r:   Údict_to_sequencej   s    
r?   c              	   C   s2  d }d}t | dƒrt| ƒ}ndt | dƒr.| j}nRt | dƒr€z|  ¡ }W n tjtfy\   Y n$0 t |¡j}d| j	vr€t
 dt¡ t | dƒ�rz|  ¡ }W n" ttfyº   |d ur¶|}Y n\0 t | dƒ�r|d u �rz&|  dd	¡ |  ¡ }|  |pòd¡ W n ttf�y   d}Y n0 |d u �r$d}td|| ƒS )
Nr   Ú__len__ÚlenÚfilenoÚba%  Requests has determined the content-length for this request using the binary size of the file: however, the file has been opened in text mode (i.e. without the 'b' flag in the mode). This may lead to an incorrect content-length. In Requests 3.0, support will be removed for files in text mode.ÚtellÚseeké   )r=   rA   rB   ÚioÚUnsupportedOperationÚAttributeErrorÚosÚfstatÚst_sizeÚmodeÚwarningsÚwarnr   rD   r1   ÚIOErrorrE   Úmax)ÚoÚtotal_lengthÚcurrent_positionrB   r9   r9   r:   Ú	super_lens   sB    




ù



rU   Fc              	   C   sF  t j d¡}|dur|f}ndd„ tD ƒ}� züddlm}m} d}|D ]B}zt j |¡}W n tyr   Y  W dS 0 t j 	|¡rF|} qŠqF|du r˜W dS t
| ƒ}	d}
t| tƒr¸|
 d¡}
|	j |
¡d }z<||ƒ |¡}|�r|d rêdnd	}|| |d
 fW W S W n  |tf�y$   |�r ‚ Y n0 W n ttf�y@   Y n0 dS )z;Returns the Requests tuple auth for a given url from netrc.ÚNETRCNc                 s   s   | ]}d   |¡V  qdS )z~/{}N)Úformat)Ú.0Úfr9   r9   r:   Ú	<genexpr>º   ó    z!get_netrc_auth.<locals>.<genexpr>r   )ÚnetrcÚNetrcParseErroró   :Úasciir   rF   )rJ   ÚenvironÚgetÚNETRC_FILESr\   r]   ÚpathÚ
expanduserÚKeyErrorÚexistsr   Ú
isinstancer   ÚdecodeÚnetlocr2   ÚauthenticatorsrP   r,   rI   )ÚurlÚraise_errorsÚ
netrc_fileÚnetrc_locationsr\   r]   Ú
netrc_pathrY   ÚlocÚriÚsplitstrr7   r    Úlogin_ir9   r9   r:   Úget_netrc_auth³   s@    

rt   c                 C   sB   t | ddƒ}|r>t|tƒr>|d dkr>|d dkr>tj |¡S dS )z0Tries to guess the filename of the given object.ÚnameNr   ú<éÿÿÿÿú>)Úgetattrrg   r   rJ   rc   Úbasename)Úobjru   r9   r9   r:   Úguess_filenameì   s
    
ÿr|   c                 C   sæ   t j | ¡r| S t j | ¡\}}|rVt j |¡sVt j |¡\}}|sFqVd ||g¡}q t |¡sd| S t |¡}|| ¡ vr~| S t	 
¡ }t j || d¡d ¡}t j |¡sât|ƒ� }| | |¡¡ W d  ƒ n1 sØ0    Y  |S )zÄReplace nonexistent paths that look like they refer to a member of a zip
    archive with the location of an extracted copy of the target, or else
    just return the provided path unchanged.
    ú/rw   N)rJ   rc   rf   r2   ÚjoinÚzipfileÚ
is_zipfileÚZipFileÚnamelistÚtempfileÚ
gettempdirÚatomic_openÚwriteÚread)rc   ÚarchiveÚmemberÚprefixÚzip_fileÚtmpÚextracted_pathÚfile_handlerr9   r9   r:   Úextract_zipped_pathsô   s&    


.r�   c                 c   s–   t jd dkrtjntj}tjtj | ¡d�\}}z@t 	|d¡�}|V  W d  ƒ n1 s\0    Y  ||| ƒ W n t
y�   t |¡ ‚ Y n0 dS )z-Write a file to the disk in an atomic fashionr   rF   )ÚdirÚwbN)ÚsysÚversion_inforJ   Úrenamer3   rƒ   Úmkstemprc   ÚdirnameÚfdopenÚBaseExceptionÚremove)ÚfilenameÚreplacerÚtmp_descriptorÚtmp_nameÚtmp_handlerr9   r9   r:   r…     s    $
r…   c                 C   s.   | du rdS t | ttttfƒr&tdƒ‚t| ƒS )a  Take an object and test to see if it can be represented as a
    dictionary. Unless it can not be represented as such, return an
    OrderedDict, e.g.,

    ::

        >>> from_key_val_list([('key', 'val')])
        OrderedDict([('key', 'val')])
        >>> from_key_val_list('string')
        Traceback (most recent call last):
        ...
        ValueError: cannot encode objects that are not 2-tuples
        >>> from_key_val_list({'key': 'val'})
        OrderedDict([('key', 'val')])

    :rtype: OrderedDict
    Nú+cannot encode objects that are not 2-tuples)rg   r   r   Úboolr/   Ú
ValueErrorr   ©Úvaluer9   r9   r:   Úfrom_key_val_list'  s
    r¤   c                 C   s@   | du rdS t | ttttfƒr&tdƒ‚t | tƒr8|  ¡ } t| ƒS )aÂ  Take an object and test to see if it can be represented as a
    dictionary. If it can be, return a list of tuples, e.g.,

    ::

        >>> to_key_val_list([('key', 'val')])
        [('key', 'val')]
        >>> to_key_val_list({'key': 'val'})
        [('key', 'val')]
        >>> to_key_val_list('string')
        Traceback (most recent call last):
        ...
        ValueError: cannot encode objects that are not 2-tuples

    :rtype: list
    NrŸ   )	rg   r   r   r    r/   r¡   r   r<   Úlistr¢   r9   r9   r:   Úto_key_val_listB  s    
r¦   c                 C   sX   g }t | ƒD ]F}|dd… |dd…   kr4dkrHn nt|dd… ƒ}| |¡ q|S )a  Parse lists as described by RFC 2068 Section 2.

    In particular, parse comma-separated lists where the elements of
    the list may include quoted-strings.  A quoted-string could
    contain a comma.  A non-quoted string could have quotes in the
    middle.  Quotes are removed automatically after parsing.

    It basically works like :func:`parse_set_header` just that items
    may appear multiple times and case sensitivity is preserved.

    The return value is a standard :class:`list`:

    >>> parse_list_header('token, "quoted value"')
    ['token', 'quoted value']

    To create a header from the :class:`list` again, use the
    :func:`dump_header` function.

    :param value: a string with a list header.
    :return: :class:`list`
    :rtype: list
    Nr   rw   ú")Ú_parse_list_headerÚunquote_header_valueÚappend)r£   ÚresultÚitemr9   r9   r:   Úparse_list_header`  s    (r­   c                 C   sx   i }t | ƒD ]f}d|vr"d||< q| dd¡\}} | dd… | dd…   krVdkrjn nt| dd… ƒ} | ||< q|S )a^  Parse lists of key, value pairs as described by RFC 2068 Section 2 and
    convert them into a python dict:

    >>> d = parse_dict_header('foo="is a fish", bar="as well"')
    >>> type(d) is dict
    True
    >>> sorted(d.items())
    [('bar', 'as well'), ('foo', 'is a fish')]

    If there is no value for a key it will be `None`:

    >>> parse_dict_header('key_without_value')
    {'key_without_value': None}

    To create a header from the :class:`dict` again, use the
    :func:`dump_header` function.

    :param value: a string with a dict header.
    :return: :class:`dict`
    :rtype: dict
    ú=Nr   rw   r§   )r¨   r2   r©   )r£   r«   r¬   ru   r9   r9   r:   Úparse_dict_header€  s    (
r¯   c                 C   s\   | rX| d | d   kr dkrXn n4| dd… } |rD| dd… dkrX|   dd¡  d	d¡S | S )
zçUnquotes a header value.  (Reversal of :func:`quote_header_value`).
    This does not use the real unquoting but what browsers are actually
    using for quoting.

    :param value: the header value to unquote.
    :rtype: str
    r   rw   r§   r   NrF   z\\ú\z\")r3   )r£   Úis_filenamer9   r9   r:   r©   £  s
    $r©   c                 C   s   i }| D ]}|j ||j< q|S )z€Returns a key/value dictionary from a CookieJar.

    :param cj: CookieJar object to extract cookies from.
    :rtype: dict
    )r£   ru   )ÚcjÚcookie_dictÚcookier9   r9   r:   Údict_from_cookiejar¼  s    rµ   c                 C   s
   t || ƒS )zÂReturns a CookieJar from a key/value dictionary.

    :param cj: CookieJar to insert cookies into.
    :param cookie_dict: Dict of key/values to insert into CookieJar.
    :rtype: CookieJar
    r   )r²   r³   r9   r9   r:   Úadd_dict_to_cookiejarË  s    r¶   c                 C   sT   t  dt¡ tjdtjd�}tjdtjd�}t d¡}| | ¡| | ¡ | | ¡ S )zlReturns encodings from given content string.

    :param content: bytestring to extract encodings from.
    z¤In requests 3.0, get_encodings_from_content will be removed. For more information, please see the discussion on issue #2266. (This warning should only appear once.)z!<meta.*?charset=["\']*(.+?)["\'>])Úflagsz+<meta.*?content=["\']*;?charset=(.+?)["\'>]z$^<\?xml.*?encoding=["\']*(.+?)["\'>])rN   rO   ÚDeprecationWarningr4   Úcompiler6   Úfindall)ÚcontentÚ
charset_reÚ	pragma_reÚxml_rer9   r9   r:   Úget_encodings_from_contentÖ  s    ü
ÿþr¿   c           
      C   sš   |   d¡}|d  ¡ |dd…  }}i }d}|D ]`}| ¡ }|r0|d }}| d¡}	|	dkr„|d|	…  |¡}||	d d…  |¡}||| ¡ < q0||fS )	z¦Returns content type and parameters from given header

    :param header: string
    :return: tuple containing content type and dictionary of
         parameters
    r&   r   r   Nz"' Tr®   rw   )r2   ÚstripÚfindÚlower)
ÚheaderÚtokensÚcontent_typeÚparamsÚparams_dictÚitems_to_stripÚparamÚkeyr£   Úindex_of_equalsr9   r9   r:   Ú_parse_content_type_headerê  s    


rÌ   c                 C   sP   |   d¡}|sdS t|ƒ\}}d|v r4|d  d¡S d|v r@dS d|v rLdS dS )	z}Returns encodings from given HTTP Header Dict.

    :param headers: dictionary to extract encoding from.
    :rtype: str
    zcontent-typeNÚcharsetz'"Útextz
ISO-8859-1zapplication/jsonúutf-8)ra   rÌ   rÀ   )ÚheadersrÅ   rÆ   r9   r9   r:   Úget_encoding_from_headers  s    
rÑ   c                 c   sj   |j du r| D ]
}|V  qdS t |j ¡dd�}| D ]}| |¡}|r4|V  q4|jddd�}|rf|V  dS )zStream decodes a iterator.Nr3   ©Úerrorsr[   T)Úfinal)ÚencodingÚcodecsÚgetincrementaldecoderrh   )ÚiteratorÚrr¬   ÚdecoderÚchunkÚrvr9   r9   r:   Ústream_decode_response_unicode  s    

rÝ   c                 c   sH   d}|du s|dkrt | ƒ}|t | ƒk rD| ||| … V  ||7 }qdS )z Iterate over slices of a string.r   N)rA   )ÚstringÚslice_lengthÚposr9   r9   r:   Úiter_slices.  s    rá   c                 C   sz   t  dt¡ g }t| jƒ}|rJzt| j|ƒW S  tyH   | |¡ Y n0 zt| j|dd�W S  t	yt   | j Y S 0 dS )zâReturns the requested content back in unicode.

    :param r: Response object to get unicode content from.

    Tried:

    1. charset from content-type
    2. fall back and replace all unicode characters

    :rtype: str
    z£In requests 3.0, get_unicode_from_response will be removed. For more information, please see the discussion on issue #2266. (This warning should only appear once.)r3   rÒ   N)
rN   rO   r¸   rÑ   rÐ   r   r»   ÚUnicodeErrorrª   Ú	TypeError)rÙ   Útried_encodingsrÕ   r9   r9   r:   Úget_unicode_from_response8  s    ü
rå   zBABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~c              	   C   sÂ   |   d¡}tdt|ƒƒD ]ž}|| dd… }t|ƒdkr¦| ¡ r¦ztt|dƒƒ}W n typ   td| ƒ‚Y n0 |tv r”||| dd…  ||< q¶d||  ||< qd||  ||< qd 	|¡S )	z¨Un-escape any percent-escape sequences in a URI that are unreserved
    characters. This leaves all reserved, illegal and non-ASCII bytes encoded.

    :rtype: str
    ú%r   r   rF   é   z%Invalid percent-escape sequence: '%s'NÚ )
r2   ÚrangerA   ÚisalnumÚchrr/   r¡   r   ÚUNRESERVED_SETr~   )ÚuriÚpartsÚiÚhÚcr9   r9   r:   Úunquote_unreserveda  s    
rò   c                 C   s>   d}d}zt t| ƒ|d�W S  ty8   t | |d� Y S 0 dS )z¬Re-quote the given URI.

    This function passes the given URI through an unquote/quote cycle to
    ensure that it is fully and consistently quoted.

    :rtype: str
    z!#$%&'()*+,/:;=?@[]~z!#$&'()*+,/:;=?@[]~)ÚsafeN)r   rò   r   )rí   Úsafe_with_percentÚsafe_without_percentr9   r9   r:   Úrequote_uriy  s    rö   c                 C   sl   t  dt | ¡¡d }| d¡\}}t  dt tt|ƒƒ¡¡d }t  dt |¡¡d |@ }||@ ||@ kS )zïThis function allows you to check if an IP belongs to a network subnet

    Example: returns True if ip = 192.168.1.1 and net = 192.168.1.0/24
             returns False if ip = 192.168.1.1 and net = 192.168.100.0/24

    :rtype: bool
    z=Lr   r}   )ÚstructÚunpackÚsocketÚ	inet_atonr2   Údotted_netmaskr/   )ÚipÚnetÚipaddrÚnetaddrÚbitsÚnetmaskÚnetworkr9   r9   r:   Úaddress_in_network�  s
    r  c                 C   s&   ddd|  > d A }t  t d|¡¡S )z�Converts mask from /xx format to xxx.xxx.xxx.xxx

    Example: if mask is 24 function returns 255.255.255.0

    :rtype: str
    l   ÿÿ r   é    z>I)rù   Ú	inet_ntoar÷   Úpack)Úmaskr   r9   r9   r:   rû   ž  s    rû   c                 C   s*   zt  | ¡ W n t jy$   Y dS 0 dS )z
    :rtype: bool
    FT)rù   rú   Úerror)Ú	string_ipr9   r9   r:   Úis_ipv4_address©  s
    r
  c                 C   sˆ   |   d¡dkr€zt|  d¡d ƒ}W n ty8   Y dS 0 |dk sJ|dkrNdS zt |  d¡d ¡ W q„ tjy|   Y dS 0 ndS dS )zV
    Very simple check of the cidr format in no_proxy variable.

    :rtype: bool
    r}   r   Fr  r   T)Úcountr/   r2   r¡   rù   rú   r  )Ústring_networkr  r9   r9   r:   Úis_valid_cidr´  s    
r  c              	   c   st   |du}|r"t j | ¡}|t j| < z*dV  W |rp|du rBt j| = qp|t j| < n"|rn|du rdt j| = n
|t j| < 0 dS )zÎSet the environment variable 'env_name' to 'value'

    Save previous value, yield, and then restore the previous value stored in
    the environment variable 'env_name'.

    If 'value' is None, do nothingN)rJ   r`   ra   )Úenv_namer£   Úvalue_changedÚ	old_valuer9   r9   r:   Úset_environÌ  s    

ü
r  c           	   
   C   s>  dd„ }|}|du r|dƒ}t | ƒ}|jdu r2dS |rÖdd„ | dd	¡ d
¡D ƒ}t|jƒr”|D ]0}t|ƒr€t|j|ƒr� dS q`|j|kr` dS q`nB|j}|jr°|d |j¡7 }|D ] }|j 	|¡sÎ| 	|¡r´ dS q´t
d|ƒ�> zt|jƒ}W n ttjf�y   d}Y n0 W d  ƒ n1 �s&0    Y  |�r:dS dS )zL
    Returns whether we should bypass proxies or not.

    :rtype: bool
    c                 S   s   t j | ¡pt j |  ¡ ¡S ©N)rJ   r`   ra   Úupper)Úkr9   r9   r:   Ú<lambda>ê  r[   z'should_bypass_proxies.<locals>.<lambda>NÚno_proxyTc                 s   s   | ]}|r|V  qd S r  r9   )rX   r7   r9   r9   r:   rZ   ú  s   z(should_bypass_proxies.<locals>.<genexpr>ú rè   ú,z:{}F)r   Úhostnamer3   r2   r
  r  r  ÚportrW   Úendswithr  r   rã   rù   Úgaierror)	rk   r  Ú	get_proxyÚno_proxy_argÚparsedÚproxy_ipÚhost_with_portr7   Úbypassr9   r9   r:   Úshould_bypass_proxiesâ  s@    
ÿ


*r#  c                 C   s   t | |d�ri S tƒ S dS )zA
    Return a dict of environment proxies.

    :rtype: dict
    ©r  N)r#  r   )rk   r  r9   r9   r:   Úget_environ_proxies  s    r%  c                 C   st   |pi }t | ƒ}|jdu r.| |j| d¡¡S |jd |j |jd|j dg}d}|D ]}||v rV|| } qpqV|S )z­Select a proxy for the url, if applicable.

    :param url: The url being for the request
    :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs
    NÚallz://zall://)r   r  ra   Úscheme)rk   ÚproxiesÚurlpartsÚ
proxy_keysÚproxyÚ	proxy_keyr9   r9   r:   Úselect_proxy+  s    
ür-  c           	      C   st   |dur|ni }| j }t|ƒj}| d¡}| ¡ }|rpt||d�spt||d�}| || d¡¡}|rp| ||¡ |S )a¨  This method takes proxy information from a request and configuration
    input to resolve a mapping of target proxies. This will consider settings
    such a NO_PROXY to strip proxy configurations.

    :param request: Request or PreparedRequest
    :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs
    :param trust_env: Boolean declaring whether to trust environment configs

    :rtype: dict
    Nr  r$  r&  )rk   r   r'  ra   Úcopyr#  r%  Ú
setdefault)	Úrequestr(  Ú	trust_envrk   r'  r  Únew_proxiesÚenviron_proxiesr+  r9   r9   r:   Úresolve_proxiesE  s    

r4  úpython-requestsc                 C   s   d| t f S )zO
    Return a string representing the default user agent.

    :rtype: str
    z%s/%sr   )ru   r9   r9   r:   Údefault_user_agent`  s    r6  c                   C   s   t tƒ tdddœƒS )z9
    :rtype: requests.structures.CaseInsensitiveDict
    z*/*z
keep-alive)z
User-AgentzAccept-EncodingÚAcceptÚ
Connection)r   r6  ÚDEFAULT_ACCEPT_ENCODINGr9   r9   r9   r:   Údefault_headersi  s    ür:  c           	   
   C   sÊ   g }d}|   |¡} | s|S t d| ¡D ]ž}z| dd¡\}}W n tyZ   |d }}Y n0 d|  d¡i}| d¡D ]D}z| d¡\}} W n ty¢   Y  qºY n0 |   |¡||  |¡< qt| |¡ q&|S )	z¼Return a list of parsed link headers proxies.

    i.e. Link: <http:/.../front.jpeg>; rel=front; type="image/jpeg",<http://.../back.jpeg>; rel=back;type="image/jpeg"

    :rtype: list
    z '"z, *<r&   r   rè   rk   z<> '"r®   )rÀ   r4   r2   r¡   rª   )	r£   ÚlinksÚreplace_charsÚvalrk   rÆ   ÚlinkrÉ   rÊ   r9   r9   r:   Úparse_header_linksu  s&    
r?  ú r_   rF   é   c                 C   sÐ   | dd… }|t jt jfv r dS |dd… t jkr6dS |dd… t jt jfv rRdS | t¡}|dkrhd	S |dkrœ|ddd… tkr†d
S |ddd… tkrœdS |dkrÌ|dd… t	kr¸dS |dd… t	krÌdS dS )z
    :rtype: str
    Né   zutf-32rA  z	utf-8-sigrF   zutf-16r   rÏ   z	utf-16-ber   z	utf-16-lez	utf-32-bez	utf-32-le)
rÖ   ÚBOM_UTF32_LEÚBOM_UTF32_BEÚBOM_UTF8ÚBOM_UTF16_LEÚBOM_UTF16_BEr  Ú_nullÚ_null2Ú_null3)ÚdataÚsampleÚ	nullcountr9   r9   r:   Úguess_json_utf   s*    
rN  c                 C   sl   t | ƒ}|\}}}}}}}	|j}
|
s.||
 }
}|r@d ||
g¡}
|du rL|}|du rXd}t||
|d||	fƒS )zªGiven a URL that may or may not have a scheme, prepend the given scheme.
    Does not replace a present scheme with the one provided as an argument.

    :rtype: str
    ú@Nrè   )r   ri   r~   r   )rk   Ú
new_schemer  r'  Úauthr7   r  rc   ÚqueryÚfragmentri   r9   r9   r:   Úprepend_scheme_if_neededÀ  s    
rT  c              	   C   s@   t | ƒ}zt|jƒt|jƒf}W n ttfy:   d}Y n0 |S )z{Given a url with authentication components, extract them into a tuple of
    username,password.

    :rtype: (str,str)
    )rè   rè   )r   r   ÚusernameÚpasswordrI   rã   )rk   r  rQ  r9   r9   r:   Úget_auth_from_urlÝ  s    
rW  s   ^\S[^\r\n]*$|^$z^\S[^\r\n]*$|^$c              	   C   sd   | \}}t |tƒrt}nt}z| |¡s4td| ƒ‚W n( ty^   td||t|ƒf ƒ‚Y n0 dS )zÕVerifies that header value is a string which doesn't contain
    leading whitespace or return characters. This prevents unintended
    header injection.

    :param header: tuple, in the format (name, value).
    z7Invalid return character or leading space in header: %sz>Value for header {%s: %s} must be of type str or bytes, not %sN)rg   r   Ú_CLEAN_HEADER_REGEX_BYTEÚ_CLEAN_HEADER_REGEX_STRr5   r   rã   Útype)rÃ   ru   r£   Úpatr9   r9   r:   Úcheck_header_validityò  s    

ÿr\  c                 C   sF   t | ƒ\}}}}}}|s"|| }}| dd¡d }t|||||dfƒS )zW
    Given a url remove the fragment and the authentication part.

    :rtype: str
    rO  r   rw   rè   )r   Úrsplitr   )rk   r'  ri   rc   rÆ   rR  rS  r9   r9   r:   Úurldefragauth  s
    
r^  c              	   C   s^   t | jddƒ}|durRt| jtƒrRz|| jƒ W qZ ttfyN   tdƒ‚Y qZ0 ntdƒ‚dS )zfMove file pointer back to its recorded starting position
    so it can be read again on redirect.
    rE   Nz;An error occurred when rewinding request body for redirect.z+Unable to rewind request body for redirect.)ry   Úbodyrg   Ú_body_positionr   rP   r1   r   )Úprepared_requestÚ	body_seekr9   r9   r:   Úrewind_body  s    rc  )F)F)N)T)r5  )jÚ__doc__rÖ   Ú
contextlibrG   rJ   r4   rù   r÷   r’   rƒ   rN   r   Úcollectionsr   Úpip._vendor.urllib3.utilr   r   r   rè   r   Ú_internal_utilsr	   Úcompatr
   r¨   r   r   r   r   r   r   r   r   r   r   r   r   r   r   Úcookiesr   Ú
structuresr   Ú
exceptionsr   r   r   r   rb   ÚwhereÚDEFAULT_CA_BUNDLE_PATHÚDEFAULT_PORTSr~   r2   r9  Úplatformr;   r?   rU   rt   r|   r�   Úcontextmanagerr…   r¤   r¦   r­   r¯   r©   rµ   r¶   r¿   rÌ   rÑ   rÝ   rá   rå   Ú	frozensetrì   rò   rö   r  rû   r
  r  r  r#  r%  r-  r4  r6  r:  r?  ÚencoderH  rI  rJ  rN  rT  rW  r¹   rX  rY  r\  r^  rc  r9   r9   r9   r:   Ú<module>   s    @
ÿ'	@
9%
 #

%ÿ
=


	&
 

