ÿØÿà JFIF      ÿÛ „ 	 ( %!1!%)+//.383,7(-.+



-%%-////---/-.+/--+------/------/--0+--/-/-----.-----ÿÀ  ¥2" ÿÄ               ÿÄ J  	     ! 1AQ"aq2‘#BR‚¡ÁÑ3br’¢±Âð$CSƒ²á4c“%DsÓñÿÄ              ÿÄ *        !1AQa‘"2q3±ð#b¡ÿÚ   ? ¼QxJQaÍuò¸Zö Úü8,ÐÚú
"SSn<rçù–´âE—^ªBÖ9À\†¸ÔÁT­ÃÛ5
ëd´³Í#Ý;Þ38œî ¶H£M:wÎ3…³…âpÔF&‚FK¸9„â4àGEõªfÿ ‘ñ(ßw­pŽF|È¥ù®häðÍÑ¶¹‘[ÒinÙW¶ùñY˜Q{›K"išÒ[Ú8žë\F¹@-?v"ÔU”,ìöžkÿ {I‡£šÍ?e
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                                                                                                                                                                                     ÿØÿà JFIF      ÿÛ „ 	 ( %!1!%)+//.383,7(-.+



-%%-////---/-.+/--+------/------/--0+--/-/-----.-----ÿÀ  ¥2" ÿÄ               ÿÄ J  	     ! 1AQ"aq2‘#BR‚¡ÁÑ3br’¢±Âð$CSƒ²á4c“%DsÓñÿÄ              ÿÄ *        !1AQa‘"2q3±ð#b¡ÿÚ   ? ¼QxJQaÍuò¸Zö Úü8,ÐÚú
"SSn<rçù–´âE—^ªBÖ9À\†¸ÔÁT­ÃÛ5
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|`hGt                 @   s  d Z ddlZddlZddlZddlZddlZddlZddlZddlZddl	Z	ddl
Z
ddlZddlmZ ddlmZ ddlmZ ddlmZ ddlmZmZmZmZmZmZmZmZmZmZmZmZm Z m!Z!m"Z" dd	l#m$Z$ dd
l%m&Z& ddl'm(Z(m)Z)m*Z*m+Z+ djZ,ej- Z.dddZ/ej0dkr2dd Z1dd Zdd Z2dd Z3dkddZ4dd Z5dd  Z6d!d" Z7d#d$ Z8d%d& Z9d'd( Z:dld)d*Z;d+d, Z<d-d. Z=d/d0 Z>d1d2 Z?d3d4 Z@d5d6 ZAd7d8 ZBd9d: ZCeDdmZEd=d> ZFd?d@ ZGdAdB ZHdCdD ZIdEdF ZJdGdH ZKejLdIdJ ZMdKdL ZNdndMdNZOdOdP ZPdodRdSZQdTdU ZRdVdW ZSdXjTdYZUeUdZ ZVeUd[ ZWd\d] ZXd^d_ ZYd`da ZZej[dbZ\ej[dcZ]ddde Z^dfdg Z_dhdi Z`dS )pz
requests.utils
~~~~~~~~~~~~~~

This module provides utility functions that are used within Requests
that are also useful for external consumption.
    N   )__version__)certs)to_native_string)parse_http_list)quoteurlparsebytesstrOrderedDictunquote
getproxiesproxy_bypass
urlunparse
basestringinteger_typesis_py3proxy_bypass_environmentgetproxies_environmentMapping)cookiejar_from_dict)CaseInsensitiveDict)
InvalidURLInvalidHeaderFileModeWarningUnrewindableBodyError.netrc_netrcP   i  )ZhttpZhttpsZwin32c             C   s   yt rdd l}ndd l}W n tk
r.   dS X y6|j|jd}t|j|dd }|j|dd }W n tk
rz   dS X | s| rdS |j	d}xX|D ]P}|dkrd| krd	S |j
dd
}|j
dd}|j
dd}tj|| tjrd	S qW dS )Nr   Fz;Software\Microsoft\Windows\CurrentVersion\Internet SettingsZProxyEnableZProxyOverride;z<local>.Tz\.*z.*?)r   winreg_winregImportErrorOpenKeyHKEY_CURRENT_USERintZQueryValueExOSErrorsplitreplacerematchI)hostr#   ZinternetSettingsZproxyEnableZproxyOverrideZtest r0   /usr/lib/python3.6/utils.pyproxy_bypass_registry/   s8    


r2   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   r2   )r/   r0   r0   r1   r   V   s    r   c             C   s   t | dr| j } | S )z/Returns an internal sequence dictionary update.items)hasattrr3   )dr0   r0   r1   dict_to_sequenceb   s    
r6   c             C   s2  d }d}t | drt| }nbt | dr.| j}nPt | dr~y| j }W n tjk
rZ   Y n$X tj|j}d| jkr~t	j
dt t | dry| j }W n$ ttfk
r   |d k	r|}Y n\X t | do|d kry&| jdd	 | j }| j|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   )r4   r8   r9   ioUnsupportedOperationosfstatst_sizemodewarningswarnr   r;   r)   IOErrorr<   max)oZtotal_lengthZcurrent_positionr9   r0   r0   r1   	super_lenk   s@    







rI   Fc             C   s   yddl m }m} d}xJtD ]B}ytjjdj|}W n tk
rJ   dS X tjj|r|}P qW |dkrndS t	| }|j
}y6||j|}	|	r|	d rdnd}
|	|
 |	d fS W n |tfk
r   |r̂ 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~/{}r   r=   )rJ   rK   NETRC_FILESr@   path
expanduserformatKeyErrorexistsr   hostnameZauthenticatorsrF   r%   AttributeError)urlZraise_errorsrJ   rK   Z
netrc_pathflocZrir/   r   Zlogin_ir0   r0   r1   get_netrc_auth   s2    
rW   c             C   sB   t | dd}|r>t|tr>|d dkr>|d dkr>tjj|S dS )z0Tries to guess the filename of the given object.nameNr   <r   >)getattr
isinstancer   r@   rM   basename)objrX   r0   r0   r1   guess_filename   s    r`   c             C   s   t jj| r| S t jj| \}}x4|rTt jj| rTt jj|\}}dj||g}q"W tj|sd| S tj|}||j kr~| S t	j
 }t jj|f|jd }t j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.
    /)rM   )r@   rM   rQ   r*   joinzipfileZ
is_zipfileZZipFileZnamelisttempfileZ
gettempdirextract)rM   archivememberprefixZzip_fileZtmpZextracted_pathr0   r0   r1   extract_zipped_paths   s     

ri   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')
        ValueError: need more than 1 value to unpack
        >>> 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   )valuer0   r0   r1   from_key_val_list   s
    rm   c             C   s@   | dkrdS t | ttttfr&tdt | tr8| j } 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')
        ValueError: cannot encode objects that are not 2-tuples.

    :rtype: list
    Nz+cannot encode objects that are not 2-tuples)	r]   r
   r	   rj   r(   rk   r   r3   list)rl   r0   r0   r1   to_key_val_list  s    
ro   c             C   s\   g }xRt | D ]F}|dd |dd   ko4dkn  rJt|dd }|j| 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   "r[   r[   )_parse_list_headerunquote_header_valueappend)rl   resultitemr0   r0   r1   parse_list_header2  s    (rv   c             C   s|   i }xrt | D ]f}d|kr$d||< q|jdd\}} | dd | dd   koVdkn  rlt| 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   rp   r[   r[   )rq   r*   rr   )rl   rt   ru   rX   r0   r0   r1   parse_dict_headerR  s    (rx   c             C   s^   | rZ| d | d	   kodkn  rZ| dd
 } | sF| dd dkrZ| j ddj 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   r   rp   Nr=   z\\\z\"r[   r[   )r+   )rl   Zis_filenamer0   r0   r1   rr   u  s
    $rr   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
    )rl   rX   )cjcookie_dictZcookier0   r0   r1   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   )rz   r{   r0   r0   r1   add_dict_to_cookiejar  s    r}   c             C   sT   t jdt tjdtjd}tjdtjd}tjd}|j| |j|  |j|  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=["\']*(.+?)["\'>])rD   rE   DeprecationWarningr,   compiler.   findall)contentZ
charset_reZ	pragma_reZxml_rer0   r0   r1   get_encodings_from_content  s    
r   c       
      C   s   | j d}|d j |dd  }}i }d}xh|D ]`}|j }|r2|d }}|jd}	|	dkr|d|	 j|}||	d d j|}|||j < 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"' Trw   r[   )r*   stripfindlower)
headertokenscontent_typeparamsZparams_dictZitems_to_stripparamkeyrl   Zindex_of_equalsr0   r0   r1   _parse_content_type_header  s    



r   c             C   sD   | j d}|sdS t|\}}d|kr4|d j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   r0   r0   r1   get_encoding_from_headers  s    
r   c             c   sr   |j dkr"x| D ]
}|V  qW dS tj|j dd}x | D ]}|j|}|r:|V  q:W |jddd}|rn|V  dS )zStream decodes a iterator.Nr+   )errors    T)final)encodingcodecsgetincrementaldecoderdecode)iteratorrru   decoderchunkrvr0   r0   r1   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)r8   )stringZslice_lengthposr0   r0   r1   iter_slices  s    r   c             C   sv   t jdt g }t| j}|rJyt| j|S  tk
rH   |j| 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.)r+   )r   N)
rD   rE   r   r   r   r
   r   UnicodeErrorrs   	TypeError)r   Ztried_encodingsr   r0   r0   r1   get_unicode_from_response  s    
r   Z4ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzz0123456789-._~c             C   s   | j d}xtdt|D ]}|| dd }t|dkr|j 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j	|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   r=      z%Invalid percent-escape sequence: '%s'N )
r*   ranger8   isalnumchrr(   rk   r   UNRESERVED_SETrb   )uripartsihcr0   r0   r1   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!#$%&'()*+,/:;=?@[]~z!#$&'()*+,/:;=?@[]~)ZsafeN)r   r   r   )r   Zsafe_with_percentZsafe_without_percentr0   r0   r1   requote_uriG  s    r   c             C   sl   t jdtj| d }|jd\}}t jdtjtt|d }t jdtj|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   ra   )structunpacksocket	inet_atonr*   dotted_netmaskr(   )ZipZnetZipaddrZnetaddrbitsZnetmaskZnetworkr0   r0   r1   address_in_network]  s
    r   c             C   s&   ddd|  > d A }t jtj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   Z	inet_ntoar   pack)maskr   r0   r0   r1   r   l  s    r   c             C   s*   yt j|  W n t jk
r$   dS X dS )z
    :rtype: bool
    FT)r   r   error)Z	string_ipr0   r0   r1   is_ipv4_addressw  s
    r   c             C   s   | j ddkryt| jdd }W n tk
r8   dS X |dk sJ|dkrNdS ytj| j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
    ra   r   Fr   r   T)countr(   r*   rk   r   r   r   )Zstring_networkr   r0   r0   r1   is_valid_cidr  s    r   c             c   sT   |dk	}|r"t j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)r@   environr   )Zenv_namerl   Zvalue_changedZ	old_valuer0   r0   r1   set_environ  s    


r   c       	      C   s,  dd }|}|dkr|d}t | }|jdkr2dS |rdd |jdd	jd
D }t|jrxz|D ],}t|rt|j|rdS qb|j|krbdS qbW nD|j}|jr|dj|j7 }x&|D ]}|jj	|s|j	|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j| pt jj| j S )N)r@   r   r   upper)kr0   r0   r1   <lambda>  s    z'should_bypass_proxies.<locals>.<lambda>Nno_proxyTc             s   s   | ]}|r|V  qd S )Nr0   ).0r/   r0   r0   r1   	<genexpr>  s    z(should_bypass_proxies.<locals>.<genexpr> r   ,z:{}F)r   rR   r+   r*   r   r   r   ZportrO   endswithr   r   r   r   Zgaierror)	rT   r   Z	get_proxyZno_proxy_argparsedZproxy_ipZhost_with_portr/   Zbypassr0   r0   r1   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   )rT   r   r0   r0   r1   get_environ_proxies  s    r   c             C   sv   |pi }t | }|jdkr.|j|j|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   rR   r   scheme)rT   ZproxiesZurlpartsZ
proxy_keysproxyZ	proxy_keyr0   r0   r1   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   )rX   r0   r0   r1   default_user_agent  s    r   c               C   s   t t djddddS )z9
    :rtype: requests.structures.CaseInsensitiveDict
    z, gzipdeflatez*/*z
keep-alive)z
User-AgentzAccept-EncodingZAcceptZ
Connection)r   r   )r   r   rb   r0   r0   r0   r1   default_headers  s
    r   c       	      C   s   g }d}| j |} | s|S xtjd| D ]}y|jdd\}}W n tk
r^   |d }}Y nX d|j di}xP|jdD ]B}y|jd\}} W n tk
r   P Y nX | j |||j |< qzW |j| 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   rT   z<> '"rw   )r   r,   r*   rk   rs   )	rl   ZlinksZreplace_charsvalrT   r   linkr   r   r0   r0   r1   parse_header_links(  s&    
r    asciir=      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 |j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-sigr=   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)dataZsampleZ	nullcountr0   r0   r1   guess_json_utfS  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   )rT   Z
new_schemer   netlocrM   r   queryfragmentr0   r0   r1   prepend_scheme_if_neededs  s    
r   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   r   ZusernameZpasswordrS   r   )rT   r   Zauthr0   r0   r1   get_auth_from_url  s    
r   s   ^\S[^\r\n]*$|^$z^\S[^\r\n]*$|^$c             C   sf   | \}}t |trt}nt}y|j|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_STRr-   r   r   type)r   rX   rl   Zpatr0   r0   r1   check_header_validity  s    

r   c             C   sF   t | \}}}}}}|s"|| }}|jddd }t|||||dfS )zW
    Given a url remove the fragment and the authentication part.

    :rtype: str
    @r   r   r[   )r   rsplitr   )rT   r   r   rM   r   r   r   r0   r0   r1   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.
    r<   Nz;An error occurred when rewinding request body for redirect.z+Unable to rewind request body for redirect.)r\   Zbodyr]   Z_body_positionr   rF   r)   r   )Zprepared_requestZ	body_seekr0   r0   r1   rewind_body  s    r   )r   r   )F)FzBABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~)N)r   )a__doc__r   
contextlibr>   r@   r,   r   r   sysrd   rD   rc   r   r   r   Z_internal_utilsr   compatr   rq   r   r   r	   r
   r   r   r   r   r   r   r   r   r   r   r   Zcookiesr   Z
structuresr   
exceptionsr   r   r   r   rL   whereZDEFAULT_CA_BUNDLE_PATHZDEFAULT_PORTSplatformr2   r6   rI   rW   r`   ri   rm   ro   rv   rx   rr   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   r   r   r   r   r   r   r   r   r0   r0   r0   r1   <module>	   s   D
'	=
-  #

%=

	&
 

