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    žV_i!  ã                   @   s�   d dl mZ d dlZd dlZd dlZddlmZ ddd„Zdd	„ Z	d
dddœZ
e
 dd„ ed dƒD ƒ¡ dd„ Zdd„ ZeZG dd„ deƒZdS )é    )Úabsolute_importNé   )Úsixúapplication/octet-streamc                 C   s   | rt  | ¡d p|S |S )zæ
    Guess the "Content-Type" of a file.

    :param filename:
        The filename to guess the "Content-Type" of using :mod:`mimetypes`.
    :param default:
        If no "Content-Type" can be guessed, default to `default`.
    r   )Ú	mimetypesÚ
guess_type)ÚfilenameÚdefault© r
   ú2/tmp/pip-unpacked-wheel-0gzb0gzi/urllib3/fields.pyÚguess_content_type	   s    	r   c              	      s¢   t ˆ tjƒrˆ  d¡‰ t‡ fdd„dD ƒƒsdd| ˆ f }z| d¡ W n ttfk
r^   Y nX |S tjrtˆ  d¡‰ t	j
 ˆ d¡‰ d| ˆ f ‰ tjržˆ  d¡‰ ˆ S )aè  
    Helper function to format and quote a single header parameter using the
    strategy defined in RFC 2231.

    Particularly useful for header parameters which might contain
    non-ASCII values, like file names. This follows RFC 2388 Section 4.4.

    :param name:
        The name of the parameter, a string expected to be ASCII only.
    :param value:
        The value of the parameter, provided as ``bytes`` or `str``.
    :ret:
        An RFC-2231-formatted unicode string.
    úutf-8c                 3   s   | ]}|ˆ kV  qd S ©Nr
   )Ú.0Úch©Úvaluer
   r   Ú	<genexpr>)   s     z.format_header_param_rfc2231.<locals>.<genexpr>z"\
ú%s="%s"Úasciiz%s*=%s)Ú
isinstancer   Úbinary_typeÚdecodeÚanyÚencodeÚUnicodeEncodeErrorÚUnicodeDecodeErrorÚPY2ÚemailÚutilsÚencode_rfc2231)Únamer   Úresultr
   r   r   Úformat_header_param_rfc2231   s     


r#   z%22z\\)ú"ú\r%   c                 C   s&   i | ]}|d krt  |¡d |¡“qS ))é   z%{:02X})r   ÚunichrÚformat)r   Úccr
   r
   r   Ú
<dictcomp>I   s   þ r*   é    c                    s:   ‡ fdd„}t  d dd„ ˆ  ¡ D ƒ¡¡}| || ¡}|S )Nc                    s   ˆ |   d¡ S )Nr   )Úgroup)Úmatch©Úneedles_and_replacementsr
   r   ÚreplacerR   s    z#_replace_multiple.<locals>.replacerú|c                 S   s   g | ]}t  |¡‘qS r
   )ÚreÚescape)r   Úneedler
   r
   r   Ú
<listcomp>V   s     z%_replace_multiple.<locals>.<listcomp>)r2   ÚcompileÚjoinÚkeysÚsub)r   r/   r0   Úpatternr"   r
   r.   r   Ú_replace_multipleQ   s    ÿr;   c                 C   s,   t |tjƒr| d¡}t|tƒ}d| |f S )a±  
    Helper function to format and quote a single header parameter using the
    HTML5 strategy.

    Particularly useful for header parameters which might contain
    non-ASCII values, like file names. This follows the `HTML5 Working Draft
    Section 4.10.22.7`_ and matches the behavior of curl and modern browsers.

    .. _HTML5 Working Draft Section 4.10.22.7:
        https://w3c.github.io/html/sec-forms.html#multipart-form-data

    :param name:
        The name of the parameter, a string expected to be ASCII only.
    :param value:
        The value of the parameter, provided as ``bytes`` or `str``.
    :ret:
        A unicode string, stripped of troublesome characters.
    r   r   )r   r   r   r   r;   Ú_HTML5_REPLACEMENTS)r!   r   r
   r
   r   Úformat_header_param_html5^   s    

r=   c                   @   sR   e Zd ZdZddefdd„Zeefdd„ƒZdd„ Zd	d
„ Z	dd„ Z
ddd„ZdS )ÚRequestFielda  
    A data container for request body parameters.

    :param name:
        The name of this request field. Must be unicode.
    :param data:
        The data/value body.
    :param filename:
        An optional filename of the request field. Must be unicode.
    :param headers:
        An optional dict-like object of headers to initially use for the field.
    :param header_formatter:
        An optional callable that is used to encode and format the headers. By
        default, this is :func:`format_header_param_html5`.
    Nc                 C   s0   || _ || _|| _i | _|r&t|ƒ| _|| _d S r   )Ú_nameÚ	_filenameÚdataÚheadersÚdictÚheader_formatter)Úselfr!   rA   r   rB   rD   r
   r
   r   Ú__init__Ž   s    
zRequestField.__init__c                 C   s`   t |tƒr4t|ƒdkr"|\}}}q@|\}}t|ƒ}nd}d}|}| ||||d�}|j|d� |S )a³  
        A :class:`~urllib3.fields.RequestField` factory from old-style tuple parameters.

        Supports constructing :class:`~urllib3.fields.RequestField` from
        parameter of key/value strings AND key/filetuple. A filetuple is a
        (filename, data, MIME type) tuple where the MIME type is optional.
        For example::

            'foo': 'bar',
            'fakefile': ('foofile.txt', 'contents of foofile'),
            'realfile': ('barfile.txt', open('realfile').read()),
            'typedfile': ('bazfile.bin', open('bazfile').read(), 'image/jpeg'),
            'nonamefile': 'contents of nonamefile field',

        Field names and filenames must be unicode.
        é   N)r   rD   )Úcontent_type)r   ÚtupleÚlenr   Úmake_multipart)ÚclsÚ	fieldnamer   rD   r   rA   rH   Úrequest_paramr
   r
   r   Úfrom_tuplesž   s     

   ÿzRequestField.from_tuplesc                 C   s   |   ||¡S )aI  
        Overridable helper function to format a single header parameter. By
        default, this calls ``self.header_formatter``.

        :param name:
            The name of the parameter, a string expected to be ASCII only.
        :param value:
            The value of the parameter, provided as a unicode string.
        )rD   )rE   r!   r   r
   r
   r   Ú_render_partÂ   s    zRequestField._render_partc                 C   sL   g }|}t |tƒr| ¡ }|D ]"\}}|dk	r| |  ||¡¡ qd |¡S )aO  
        Helper function to format and quote a single header.

        Useful for single headers that are composed of multiple items. E.g.,
        'Content-Disposition' fields.

        :param header_parts:
            A sequence of (k, v) tuples or a :class:`dict` of (k, v) to format
            as `k1="v1"; k2="v2"; ...`.
        Nú; )r   rC   ÚitemsÚappendrP   r7   )rE   Úheader_partsÚpartsÚiterabler!   r   r
   r
   r   Ú_render_partsÏ   s    
zRequestField._render_partsc                 C   s„   g }dddg}|D ]*}| j  |d¡r| d|| j | f ¡ q| j  ¡ D ]&\}}||krH|rH| d||f ¡ qH| d¡ d |¡S )z=
        Renders the headers for this request field.
        úContent-DispositionúContent-TypeúContent-LocationFz%s: %sz
)rB   ÚgetrS   rR   r7   )rE   ÚlinesÚ	sort_keysÚsort_keyÚheader_nameÚheader_valuer
   r
   r   Úrender_headerså   s    

zRequestField.render_headersc                 C   sX   |pd| j d< | j d  d d|  d| jfd| jff¡g¡7  < || j d< || j d< d	S )
a|  
        Makes this request field into a multipart request field.

        This method overrides "Content-Disposition", "Content-Type" and
        "Content-Location" headers to the request parameter.

        :param content_type:
            The 'Content-Type' of the request body.
        :param content_location:
            The 'Content-Location' of the request body.

        z	form-datarX   rQ   Ú r!   r   rY   rZ   N)rB   r7   rW   r?   r@   )rE   Úcontent_dispositionrH   Úcontent_locationr
   r
   r   rK   ø   s    ÿþÿ
zRequestField.make_multipart)NNN)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r=   rF   ÚclassmethodrO   rP   rW   ra   rK   r
   r
   r
   r   r>   }   s   ú
#     ÿr>   )r   )Ú
__future__r   Úemail.utilsr   r   r2   Úpackagesr   r   r#   r<   ÚupdateÚranger;   r=   Úformat_header_paramÚobjectr>   r
   r
   r
   r   Ú<module>   s&   
*üþÿ	