congress/congress/auth.py
Tin Lam c596b89c48 Moved CORS middleware configuration into oslo-config-generator
The default values needed for congress's implementation of cors
middleware have been moved from paste.ini into the configuration
hooks provided by oslo.config. Furthermore, these values have been
added to the default initialization procedure. This ensures
that if a value remains unset in the configuration file, it will
fallback to using sane defaults. It also ensures that an operator
modifying the configuration will be presented with that same
set of defaults.

Change-Id: I2edc24e4d47c4d664dd31c407d46e42fefdb1488
Closes-Bug: #1551836
2016-03-14 10:55:49 -07:00

80 lines
2.6 KiB
Python

# Copyright 2012 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from __future__ import print_function
from __future__ import division
from __future__ import absolute_import
from oslo_config import cfg
from oslo_log import log as logging
from oslo_middleware import request_id
import webob.dec
import webob.exc
from congress.common import config
from congress.common import wsgi
from congress import context
LOG = logging.getLogger(__name__)
class CongressKeystoneContext(wsgi.Middleware):
"""Make a request context from keystone headers."""
@webob.dec.wsgify
def __call__(self, req):
# Determine the user ID
user_id = req.headers.get('X_USER_ID')
if not user_id:
LOG.debug(_("X_USER_ID is not found in request"))
return webob.exc.HTTPUnauthorized()
# Determine the tenant
tenant_id = req.headers.get('X_PROJECT_ID')
# Suck out the roles
roles = [r.strip() for r in req.headers.get('X_ROLES', '').split(',')]
# Human-friendly names
tenant_name = req.headers.get('X_PROJECT_NAME')
user_name = req.headers.get('X_USER_NAME')
# Use request_id if already set
req_id = req.environ.get(request_id.ENV_REQUEST_ID)
# Create a context with the authentication data
ctx = context.RequestContext(user_id, tenant_id, roles=roles,
user_name=user_name,
tenant_name=tenant_name,
request_id=req_id)
# Inject the context...
req.environ['congress.context'] = ctx
return self.application
def pipeline_factory(loader, global_conf, **local_conf):
"""Create a paste pipeline based on the 'auth_strategy' config option."""
config.set_config_defaults()
pipeline = local_conf[cfg.CONF.auth_strategy]
pipeline = pipeline.split()
filters = [loader.get_filter(n) for n in pipeline[:-1]]
app = loader.get_app(pipeline[-1])
filters.reverse()
for filter in filters:
app = filter(app)
return app