B
    NIfu                 @   s  d Z ddlZddlZddlZddlZddlZddlZddlZddl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 dd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$m%Z% ddl&m'Z' ddl(m)Z)m*Z*m+Z+m,Z, dZ-e. Z/dddZ0ej1dkr:dd Z2dd Zdd Z3dd Z4diddZ5dd Z6dd  Z7d!d" Z8d#d$ Z9d%d& Z:d'd( Z;djd)d*Z<d+d, Z=d-d. Z>d/d0 Z?d1d2 Z@d3d4 ZAd5d6 ZBd7d8 ZCd9d: ZDeEd;ZFd<d= ZGd>d? ZHd@dA ZIdBdC ZJdDdE ZKdFdG ZLejMdHdI ZNdJdK ZOdkdLdMZPdNdO ZQdldQdRZRdSdT ZSdUdV ZTdWUdXZVeVdY ZWeVdZ ZXd[d\ ZYd]d^ ZZd_d` Z[e\daZ]e\dbZ^dcdd Z_dedf Z`dgdh ZadS )mz
requests.utils
~~~~~~~~~~~~~~

This module provides utility functions that are used within Requests
that are also useful for external consumption.
    N)OrderedDict   )__version__)certs)to_native_string)parse_http_list)quoteurlparsebytesstrunquote
getproxiesproxy_bypass
urlunparse
basestringinteger_typesis_py3proxy_bypass_environmentgetproxies_environmentMapping)cookiejar_from_dict)CaseInsensitiveDict)
InvalidURLInvalidHeaderFileModeWarningUnrewindableBodyError)z.netrc_netrcP   i  )httphttpswin32c             C   s   yt rdd l}ndd l}W n tk
r.   dS X y6||jd}t||dd }||dd }W n tk
rz   dS X |r|sdS |	d}xX|D ]P}|dkrd| krd	S |
dd
}|
dd}|
dd}t|| tjrd	S qW dS )Nr   Fz;Software\Microsoft\Windows\CurrentVersion\Internet SettingsProxyEnableProxyOverride;z<local>.Tz\.*z.*?)r   winreg_winregImportErrorOpenKeyHKEY_CURRENT_USERintQueryValueExOSErrorsplitreplacerematchI)hostr'   internetSettingsproxyEnableproxyOverridetest r9   mC:\Users\Lenovo\AppData\Roaming\MobaXterm\slash\tmp\pip-unpacked-wheel-pzsg_9to\pip\_vendor\requests\utils.pyproxy_bypass_registry0   s8    


r;   c             C   s   t  rt| S t| S dS )zReturn True, if the host should be bypassed.

        Checks proxy settings gathered from the environment, if specified,
        or the registry.
        N)r   r   r;   )r4   r9   r9   r:   r   W   s    r   c             C   s   t | dr|  } | S )z/Returns an internal sequence dictionary update.items)hasattrr<   )dr9   r9   r:   dict_to_sequencec   s    
r?   c          	   C   s4  d }d}t | drt| }nbt | dr.| j}nPt | dr~y|  }W n tjk
rZ   Y n$X t|j}d| jkr~t	
dt t | dry|  }W n$ ttfk
r   |d k	r|}Y n^X t | dr|d kry&| dd	 |  }| |pd W n ttfk
r   d}Y nX |d kr&d}td|| S )
Nr   __len__lenfileno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.tellseek   )r=   rA   rB   ioUnsupportedOperationosfstatst_sizemodewarningswarnr   rD   r.   IOErrorrE   max)ototal_lengthcurrent_positionrB   r9   r9   r:   	super_lenl   s@    







rT   Fc          	   C   s  yddl m }m} d}xJtD ]B}ytjd|}W n tk
rJ   dS X tj|r|}P qW |dkrndS t	| }d}t
| tr|d}|j|d }	y6|||	}
|
r|
d rdnd}|
| |
d fS W n |tfk
r   |r Y nX W n ttfk
r   Y nX dS )	z;Returns the Requests tuple auth for a given url from netrc.r   )netrcNetrcParseErrorNz~/{}   :asciir   rF   )rU   rV   NETRC_FILESrI   path
expanduserformatKeyErrorexistsr	   
isinstancer   decodenetlocr/   authenticatorsrO   r)   AttributeError)urlraise_errorsrU   rV   
netrc_pathflocrisplitstrr4   r   login_ir9   r9   r:   get_netrc_auth   s8    


rl   c             C   sB   t | dd}|r>t|tr>|d dkr>|d dkr>tj|S dS )z0Tries to guess the filename of the given object.nameNr   <>)getattrr_   r   rI   rZ   basename)objrm   r9   r9   r:   guess_filename   s    rt   c             C   s   t j| r| S t j| \}}x2|rRt j|sRt j|\}}d||g}q"W t|sb| S t|}|| kr|| S t	
 }t jj|f|d }t j|s|j||d}|S )zReplace 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.
    /)rZ   )rI   rZ   r^   r/   joinzipfile
is_zipfileZipFilenamelisttempfile
gettempdirextract)rZ   archivememberprefixzip_filetmpextracted_pathr9   r9   r:   extract_zipped_paths   s     

r   c             C   s.   | dkrdS t | ttttfr&tdt| 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
    Nz+cannot encode objects that are not 2-tuples)r_   r   r
   boolr,   
ValueErrorr   )valuer9   r9   r:   from_key_val_list  s
    r   c             C   s@   | dkrdS t | ttttfr&tdt | tr8|  } t| S )a  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
    Nz+cannot encode objects that are not 2-tuples)	r_   r   r
   r   r,   r   r   r<   list)r   r9   r9   r:   to_key_val_list  s    
r   c             C   s\   g }xRt | D ]F}|dd |dd   kr6dkrJn nt|dd }|| qW |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   ro   ")_parse_list_headerunquote_header_valueappend)r   resultitemr9   r9   r:   parse_list_header=  s    (r   c             C   s|   i }xrt | D ]f}d|kr$d||< q|dd\}} | dd | dd   krXdkrln nt| dd } | ||< qW |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
    =Nr   ro   r   )r   r/   r   )r   r   r   rm   r9   r9   r:   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 )
zUnquotes 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   ro   r   r   NrF   z\\\z\")r0   )r   is_filenamer9   r9   r:   r     s
    $r   c             C   s"   i }x| D ]}|j ||j< q
W |S )zReturns a key/value dictionary from a CookieJar.

    :param cj: CookieJar object to extract cookies from.
    :rtype: dict
    )r   rm   )cjcookie_dictcookier9   r9   r:   dict_from_cookiejar  s    
r   c             C   s
   t || S )zReturns 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   )r   r   r9   r9   r:   add_dict_to_cookiejar  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.
    zIn 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=["\']*(.+?)["\'>])flagsz+<meta.*?content=["\']*;?charset=(.+?)["\'>]z$^<\?xml.*?encoding=["\']*(.+?)["\'>])rM   rN   DeprecationWarningr1   compiler3   findall)content
charset_re	pragma_rexml_rer9   r9   r:   get_encodings_from_content  s    
r   c       
      C   s   |  d}|d  |dd  }}i }d}xh|D ]`}| }|r2|d }}|d}	|	dkr|d|	 |}||	d d |}||| < q2W ||fS )	zReturns content type and parameters from given header

    :param header: string
    :return: tuple containing content type and dictionary of
         parameters
    r#   r   r   Nz"' Tr   ro   )r/   stripfindlower)
headertokenscontent_typeparamsparams_dictitems_to_stripparamkeyr   index_of_equalsr9   r9   r:   _parse_content_type_header  s    



r   c             C   sD   |  d}|sdS t|\}}d|kr4|d dS d|kr@dS dS )z}Returns encodings from given HTTP Header Dict.

    :param headers: dictionary to extract encoding from.
    :rtype: str
    zcontent-typeNcharsetz'"textz
ISO-8859-1)getr   r   )headersr   r   r9   r9   r:   get_encoding_from_headers  s    
r   c             c   sr   |j dkr"x| D ]
}|V  qW dS t|j dd}x | D ]}||}|r:|V  q:W |jddd}|rn|V  dS )zStream decodes a iterator.Nr0   )errors    T)final)encodingcodecsgetincrementaldecoderr`   )iteratorrr   decoderchunkrvr9   r9   r:   stream_decode_response_unicode  s    





r   c             c   sL   d}|dks|dkrt | }x*|t | k rF| |||  V  ||7 }qW dS )z Iterate over slices of a string.r   N)rA   )stringslice_lengthposr9   r9   r:   iter_slices  s    r   c             C   sv   t dt g }t| j}|rJyt| j|S  tk
rH   || Y nX yt| j|ddS  t	k
rp   | jS X dS )zReturns 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
    zIn 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.)r0   )r   N)
rM   rN   r   r   r   r   r   UnicodeErrorr   	TypeError)r   tried_encodingsr   r9   r9   r:   get_unicode_from_response  s    
r   zBABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~c          	   C   s   |  d}xtdt|D ]}|| dd }t|dkr| rytt|d}W n  tk
rt   td| Y nX |tkr||| dd  ||< qd||  ||< qd||  ||< qW d	|S )	zUn-escape any percent-escape sequences in a URI that are unreserved
    characters. This leaves all reserved, illegal and non-ASCII bytes encoded.

    :rtype: str
    %r   r   rF      z%Invalid percent-escape sequence: '%s'N )
r/   rangerA   isalnumchrr,   r   r   UNRESERVED_SETrv   )uripartsihcr9   r9   r:   unquote_unreserved:  s    
r   c             C   s:   d}d}yt t| |dS  tk
r4   t | |dS X dS )zRe-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!#$%&'()*+,/:;=?@[]~z!#$&'()*+,/:;=?@[]~)safeN)r   r   r   )r   safe_with_percentsafe_without_percentr9   r9   r:   requote_uriR  s    r   c             C   sl   t dt| d }|d\}}t dttt|d }t dt|d |@ }||@ ||@ kS )zThis 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   ru   )structunpacksocket	inet_atonr/   dotted_netmaskr,   )ipnetipaddrnetaddrbitsnetmasknetworkr9   r9   r:   address_in_networkh  s
    r   c             C   s&   ddd|  > d A }t td|S )zConverts mask from /xx format to xxx.xxx.xxx.xxx

    Example: if mask is 24 function returns 255.255.255.0

    :rtype: str
    l    r       z>I)r   	inet_ntoar   pack)maskr   r9   r9   r:   r   w  s    r   c             C   s*   yt |  W n t jk
r$   dS X dS )z
    :rtype: bool
    FT)r   r   error)	string_ipr9   r9   r:   is_ipv4_address  s
    r   c             C   s   |  ddkryt| dd }W n tk
r8   dS X |dk sJ|dkrNdS yt| dd  W q tjk
r|   dS X ndS dS )zV
    Very simple check of the cidr format in no_proxy variable.

    :rtype: bool
    ru   r   Fr   r   T)countr,   r/   r   r   r   r   )string_networkr   r9   r9   r:   is_valid_cidr  s    r   c          	   c   sT   |dk	}|r"t j| }|t j| < z
dV  W d|rN|dkrDt j| = n
|t j| < X dS )zSet 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)rI   environr   )env_namer   value_changed	old_valuer9   r9   r:   set_environ  s    


r   c       	   
   C   s,  dd }|}|dkr|d}t | }|jdkr2dS |rdd |dd	d
D }t|jrxz|D ],}t|rt|j|rdS qb|j|krbdS qbW nD|j}|jr|d|j7 }x&|D ]}|j	|s|	|rdS qW t
d|6 yt|j}W n  ttjfk
r   d}Y nX W dQ R X |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)rI   r   r   upper)kr9   r9   r:   <lambda>  r   z'should_bypass_proxies.<locals>.<lambda>Nno_proxyTc             s   s   | ]}|r|V  qd S )Nr9   ).0r4   r9   r9   r:   	<genexpr>  s    z(should_bypass_proxies.<locals>.<genexpr> r   ,z:{}F)r	   hostnamer0   r/   r   r   r   portr\   endswithr   r   r   r   gaierror)	rd   r   	get_proxyno_proxy_argparsedproxy_iphost_with_portr4   bypassr9   r9   r:   should_bypass_proxies  s<    





r	  c             C   s   t | |dri S t S dS )zA
    Return a dict of environment proxies.

    :rtype: dict
    )r   N)r	  r   )rd   r   r9   r9   r:   get_environ_proxies  s    r
  c             C   sv   |pi }t | }|jdkr.||j|dS |jd |j |jd|j dg}d}x|D ]}||krX|| }P qXW |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
    Nallz://zall://)r	   r   r   scheme)rd   proxiesurlparts
proxy_keysproxy	proxy_keyr9   r9   r:   select_proxy  s    

r  python-requestsc             C   s   d| t f S )zO
    Return a string representing the default user agent.

    :rtype: str
    z%s/%s)r   )rm   r9   r9   r:   default_user_agent  s    r  c               C   s   t t dddddS )z9
    :rtype: requests.structures.CaseInsensitiveDict
    z, )gzipdeflatez*/*z
keep-alive)z
User-AgentzAccept-EncodingAccept
Connection)r   r  rv   r9   r9   r9   r:   default_headers'  s
    r  c       	   
   C   s   g }d}|  |} | s|S xtd| D ]}y|dd\}}W n tk
r^   |d }}Y nX d| di}xP|dD ]B}y|d\}} W n tk
r   P Y nX |  ||| |< qzW || q(W |S )	zReturn 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   r   rd   z<> '"r   )r   r1   r/   r   r   )	r   linksreplace_charsvalrd   r   linkr   r   r9   r9   r:   parse_header_links3  s&    
r   rX   rF      c             C   s   | dd }|t jt jfkr dS |dd t jkr6dS |dd t jt jfkrRdS |t}|dkrhd	S |dkr|ddd tkrd
S |ddd tkrdS |dkr|dd t	krdS |dd t	krdS dS )z
    :rtype: str
    N   zutf-32r   z	utf-8-sigrF   zutf-16r   zutf-8z	utf-16-ber   z	utf-16-lez	utf-32-bez	utf-32-le)
r   BOM_UTF32_LEBOM_UTF32_BEBOM_UTF8BOM_UTF16_LEBOM_UTF16_BEr   _null_null2_null3)datasample	nullcountr9   r9   r:   guess_json_utf^  s*    
r-  c             C   s8   t | |\}}}}}}|s$|| }}t||||||fS )zGiven 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
    )r	   r   )rd   
new_schemer  ra   rZ   r   queryfragmentr9   r9   r:   prepend_scheme_if_needed~  s    
r1  c          	   C   sB   t | }yt|jt|jf}W n ttfk
r<   d}Y nX |S )z{Given a url with authentication components, extract them into a tuple of
    username,password.

    :rtype: (str,str)
    )r   r   )r	   r   usernamepasswordrc   r   )rd   r  authr9   r9   r:   get_auth_from_url  s    
r5  s   ^\S[^\r\n]*$|^$z^\S[^\r\n]*$|^$c          	   C   sf   | \}}t |trt}nt}y||s4td| W n* tk
r`   td||t|f Y nX dS )zVerifies 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)r_   r
   _CLEAN_HEADER_REGEX_BYTE_CLEAN_HEADER_REGEX_STRr2   r   r   type)r   rm   r   patr9   r9   r:   check_header_validity  s    

r:  c             C   sF   t | \}}}}}}|s"|| }}|ddd }t|||||dfS )zW
    Given a url remove the fragment and the authentication part.

    :rtype: str
    @r   ro   r   )r	   rsplitr   )rd   r  ra   rZ   r   r/  r0  r9   r9   r:   urldefragauth  s
    
r=  c          	   C   s`   t | jdd}|dk	rTt| jtrTy|| j W q\ ttfk
rP   tdY q\X ntd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.)rq   bodyr_   _body_positionr   rO   r.   r   )prepared_request	body_seekr9   r9   r:   rewind_body  s    rB  )F)F)N)r  )b__doc__r   
contextlibrG   rI   r1   r   r   sysr{   rM   rw   collectionsr   r   r   r   _internal_utilsr   compatr   r   r   r	   r
   r   r   r   r   r   r   r   r   r   r   r   cookiesr   
structuresr   
exceptionsr   r   r   r   rY   whereDEFAULT_CA_BUNDLE_PATHDEFAULT_PORTSplatformr;   r?   rT   rl   rt   r   r   r   r   r   r   r   r   r   r   r   r   r   r   	frozensetr   r   r   r   r   r   r   contextmanagerr   r	  r
  r  r  r  r  encoder'  r(  r)  r-  r1  r5  r   r6  r7  r:  r=  rB  r9   r9   r9   r:   <module>	   s   @
'	=
3  #

%=

	&
 

