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EDITING: utils.py

# -*- coding: utf-8 -*-
"""
oauthlib.utils
~~~~~~~~~~~~~~

This module contains utility methods used by various parts of the OAuth
spec.
"""
from __future__ import absolute_import, unicode_literals

try:
    import urllib2
except ImportError:
    import urllib.request as urllib2

from oauthlib.common import quote, unquote, bytes_type, unicode_type

UNICODE_ASCII_CHARACTER_SET = ('abcdefghijklmnopqrstuvwxyz'
                               'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
                               '0123456789')

def filter_params(target):
    """Decorator which filters params to remove non-oauth_* parameters

Assumes the decorated method takes a params dict or list of tuples as its
    first argument.
    """
    def wrapper(params, *args, **kwargs):
        params = filter_oauth_params(params)
        return target(params, *args, **kwargs)

wrapper.__doc__ = target.__doc__
    return wrapper

def filter_oauth_params(params):
    """Removes all non oauth parameters from a dict or a list of params."""
    is_oauth = lambda kv: kv[0].startswith("oauth_")
    if isinstance(params, dict):
        return list(filter(is_oauth, list(params.items())))
    else:
        return list(filter(is_oauth, params))

def escape(u):
    """Escape a unicode string in an OAuth-compatible fashion.

Per `section 3.6`_ of the spec.

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

"""
    if not isinstance(u, unicode_type):
        raise ValueError('Only unicode objects are escapable. ' +
                         'Got %s of type %s.' % (u, type(u)))
    # Letters, digits, and the characters '_.-' are already treated as safe
    # by urllib.quote(). We need to add '~' to fully support rfc5849.
    return quote(u, safe=b'~')

def unescape(u):
    if not isinstance(u, unicode_type):
        raise ValueError('Only unicode objects are unescapable.')
    return unquote(u)

def parse_keqv_list(l):
    """A unicode-safe version of urllib2.parse_keqv_list"""
    # With Python 2.6, parse_http_list handles unicode fine
    return urllib2.parse_keqv_list(l)

def parse_http_list(u):
    """A unicode-safe version of urllib2.parse_http_list"""
    # With Python 2.6, parse_http_list handles unicode fine
    return urllib2.parse_http_list(u)

def parse_authorization_header(authorization_header):
    """Parse an OAuth authorization header into a list of 2-tuples"""
    auth_scheme = 'OAuth '.lower()
    if authorization_header[:len(auth_scheme)].lower().startswith(auth_scheme):
        items = parse_http_list(authorization_header[len(auth_scheme):])
        try:
            return list(parse_keqv_list(items).items())
        except (IndexError, ValueError):
            pass
    raise ValueError('Malformed authorization header')

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📁 __pycache__/	DIR	—	2025-10-09 12:24
📁 endpoints/	DIR	—	2025-10-09 12:24
📄 __init__.py	PY	14.8 KB	2015-08-10 08:26	EDIT
📄 errors.py	PY	2.5 KB	2015-07-19 08:30	EDIT
📄 parameters.py	PY	4.8 KB	2015-07-19 08:30	EDIT
📄 request_validator.py	PY	29.7 KB	2015-08-16 12:07	EDIT
📄 signature.py	PY	22.7 KB	2015-07-19 08:37	EDIT
📄 utils.py	PY	2.7 KB	2015-07-19 08:30	EDIT