o
    a5
                     @   s`   d Z ddlmZ ddlmZmZ dZdd Zdd Z	d	d
 Z
dd Zdd Zdd Zdd ZdS )zn
oauthlib.utils
~~~~~~~~~~~~~~

This module contains utility methods used by various parts of the OAuth
spec.
    N)quoteunquote>abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789c                    s    fdd} j |_ |S )zDecorator which filters params to remove non-oauth_* parameters

    Assumes the decorated method takes a params dict or list of tuples as its
    first argument.
    c                    s   t | }  | g|R i |S )N)filter_oauth_params)paramsargskwargstarget ?/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/utils.pywrapper   s   zfilter_params.<locals>.wrapper)__doc__)r
   r   r   r	   r   filter_params   s   r   c                 C   s6   dd }t | trtt|t|  S tt|| S )zARemoves all non oauth parameters from a dict or a list of params.c                 S   s   | d  dS )Nr   oauth_)
startswith)kvr   r   r   <lambda>!   s    z%filter_oauth_params.<locals>.<lambda>)
isinstancedictlistfilteritems)r   is_oauthr   r   r   r      s   
r   c                 C   s.   t | tstdd| t|  t| ddS )zEscape a unicode string in an OAuth-compatible fashion.

    Per `section 3.6`_ of the spec.

    .. _`section 3.6`: https://tools.ietf.org/html/rfc5849#section-3.6

    z$Only unicode objects are escapable. zGot {!r} of type {}.   ~)safe)r   str
ValueErrorformattyper   ur   r   r   escape(   s
   
r"   c                 C   s   t | ts	tdt| S )Nz%Only unicode objects are unescapable.)r   r   r   r   r    r   r   r   unescape8   s   
r#   c                 C   
   t | S )z1A unicode-safe version of urllib2.parse_keqv_list)urllib2parse_keqv_list)lr   r   r   r&   >      
r&   c                 C   r$   )z1A unicode-safe version of urllib2.parse_http_list)r%   parse_http_listr    r   r   r   r)   D   r(   r)   c              	   C   sn   d  }| dt|   |r3t| t|d }z	tt| W S  ttfy2   Y tdw td)z;Parse an OAuth authorization header into a list of 2-tupleszOAuth NzMalformed authorization header)	lowerlenr   r)   r   r&   r   
IndexErrorr   )authorization_headerauth_schemer   r   r   r   parse_authorization_headerJ   s   r/   )r   urllib.requestrequestr%   oauthlib.commonr   r   UNICODE_ASCII_CHARACTER_SETr   r   r"   r#   r&   r)   r/   r   r   r   r   <module>   s    	