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84 lines
2.2 KiB
84 lines
2.2 KiB
"""
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oauthlib.utils
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~~~~~~~~~~~~~~
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This module contains utility methods used by various parts of the OAuth 2 spec.
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"""
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import datetime
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import os
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from urllib.parse import quote, urlparse
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from oauthlib.common import urldecode
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def list_to_scope(scope):
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"""Convert a list of scopes to a space separated string."""
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if isinstance(scope, str) or scope is None:
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return scope
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elif isinstance(scope, (set, tuple, list)):
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return " ".join([str(s) for s in scope])
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else:
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raise ValueError("Invalid scope (%s), must be string, tuple, set, or list." % scope)
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def scope_to_list(scope):
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"""Convert a space separated string to a list of scopes."""
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if isinstance(scope, (tuple, list, set)):
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return [str(s) for s in scope]
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elif scope is None:
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return None
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else:
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return scope.strip().split(" ")
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def params_from_uri(uri):
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params = dict(urldecode(urlparse(uri).query))
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if 'scope' in params:
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params['scope'] = scope_to_list(params['scope'])
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return params
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def host_from_uri(uri):
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"""Extract hostname and port from URI.
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Will use default port for HTTP and HTTPS if none is present in the URI.
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"""
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default_ports = {
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'HTTP': '80',
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'HTTPS': '443',
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}
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sch, netloc, path, par, query, fra = urlparse(uri)
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if ':' in netloc:
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netloc, port = netloc.split(':', 1)
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else:
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port = default_ports.get(sch.upper())
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return netloc, port
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def escape(u):
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"""Escape a string in an OAuth-compatible fashion.
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TODO: verify whether this can in fact be used for OAuth 2
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"""
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if not isinstance(u, str):
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raise ValueError('Only unicode objects are escapable.')
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return quote(u.encode('utf-8'), safe=b'~')
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def generate_age(issue_time):
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"""Generate a age parameter for MAC authentication draft 00."""
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td = datetime.datetime.now() - issue_time
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age = (td.microseconds + (td.seconds + td.days * 24 * 3600)
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* 10 ** 6) / 10 ** 6
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return str(age)
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def is_secure_transport(uri):
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"""Check if the uri is over ssl."""
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if os.environ.get('OAUTHLIB_INSECURE_TRANSPORT'):
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return True
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return uri.lower().startswith('https://')
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