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validators.py
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Mon, Nov 18, 12:57

validators.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2014 CERN.
#
# Invenio is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# Invenio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Invenio; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""Validators for OAuth 2.0 redirect URIs and scopes."""
from __future__ import absolute_import
from oauthlib.oauth2.rfc6749.errors import InsecureTransportError, \
InvalidRedirectURIError
from six.moves.urllib_parse import urlparse
from .errors import ScopeDoesNotExists
def validate_redirect_uri(value):
"""Validate a redirect URI.
Redirect URIs must be a valid URL and use https unless the host is
localhost for which http is accepted.
"""
sch, netloc, path, par, query, fra = urlparse(value)
if not (sch and netloc):
raise InvalidRedirectURIError()
if sch != 'https':
if ':' in netloc:
netloc, port = netloc.split(':', 1)
if not (netloc in ('localhost', '127.0.0.1') and sch == 'http'):
raise InsecureTransportError()
def validate_scopes(value_list):
"""Validate if each element in a list is a registered scope."""
from .registry import scopes as scopes_registry
for value in value_list:
if value not in scopes_registry:
raise ScopeDoesNotExists(value)
return True

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