87 lines
2.8 KiB
Python
87 lines
2.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Simple class that stores security context information in the web request.
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Projects should subclass this class if they wish to enhance the request
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context or provide additional information in their specific WSGI pipeline.
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"""
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import itertools
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from muranorepository.openstack.common import uuidutils
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def generate_request_id():
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return 'req-%s' % uuidutils.generate_uuid()
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class RequestContext(object):
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"""Helper class to represent useful information about a request context.
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Stores information about the security context under which the user
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accesses the system, as well as additional request information.
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"""
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def __init__(self, auth_token=None, user=None, tenant=None, is_admin=False,
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read_only=False, show_deleted=False, request_id=None,
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instance_uuid=None):
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self.auth_token = auth_token
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self.user = user
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self.tenant = tenant
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self.is_admin = is_admin
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self.read_only = read_only
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self.show_deleted = show_deleted
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self.instance_uuid = instance_uuid
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if not request_id:
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request_id = generate_request_id()
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self.request_id = request_id
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def to_dict(self):
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return {'user': self.user,
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'tenant': self.tenant,
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'is_admin': self.is_admin,
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'read_only': self.read_only,
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'show_deleted': self.show_deleted,
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'auth_token': self.auth_token,
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'request_id': self.request_id,
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'instance_uuid': self.instance_uuid}
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def get_admin_context(show_deleted=False):
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context = RequestContext(None,
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tenant=None,
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is_admin=True,
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show_deleted=show_deleted)
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return context
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def get_context_from_function_and_args(function, args, kwargs):
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"""Find an arg of type RequestContext and return it.
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This is useful in a couple of decorators where we don't
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know much about the function we're wrapping.
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"""
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for arg in itertools.chain(kwargs.values(), args):
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if isinstance(arg, RequestContext):
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return arg
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return None
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