151 lines
5.6 KiB
Python
151 lines
5.6 KiB
Python
# Copyright 2010 OpenStack LLC.
|
|
# All Rights Reserved.
|
|
#
|
|
# 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.
|
|
"""
|
|
Common Auth Middleware.
|
|
|
|
"""
|
|
import os
|
|
|
|
from oslo_config import cfg
|
|
from oslo_serialization import jsonutils
|
|
import webob.dec
|
|
import webob.exc
|
|
|
|
from manila.api.openstack import wsgi
|
|
from manila import context
|
|
from manila.i18n import _
|
|
from manila.openstack.common import log as logging
|
|
from manila import wsgi as base_wsgi
|
|
|
|
use_forwarded_for_opt = cfg.BoolOpt(
|
|
'use_forwarded_for',
|
|
default=False,
|
|
help='Treat X-Forwarded-For as the canonical remote address. '
|
|
'Only enable this if you have a sanitizing proxy.')
|
|
|
|
CONF = cfg.CONF
|
|
CONF.register_opt(use_forwarded_for_opt)
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
def pipeline_factory(loader, global_conf, **local_conf):
|
|
"""A paste pipeline replica that keys off of auth_strategy."""
|
|
pipeline = local_conf[CONF.auth_strategy]
|
|
if not CONF.api_rate_limit:
|
|
limit_name = CONF.auth_strategy + '_nolimit'
|
|
pipeline = local_conf.get(limit_name, pipeline)
|
|
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
|
|
|
|
|
|
class InjectContext(base_wsgi.Middleware):
|
|
"""Add a 'manila.context' to WSGI environ."""
|
|
|
|
def __init__(self, context, *args, **kwargs):
|
|
self.context = context
|
|
super(InjectContext, self).__init__(*args, **kwargs)
|
|
|
|
@webob.dec.wsgify(RequestClass=base_wsgi.Request)
|
|
def __call__(self, req):
|
|
req.environ['manila.context'] = self.context
|
|
return self.application
|
|
|
|
|
|
class ManilaKeystoneContext(base_wsgi.Middleware):
|
|
"""Make a request context from keystone headers."""
|
|
|
|
@webob.dec.wsgify(RequestClass=base_wsgi.Request)
|
|
def __call__(self, req):
|
|
user_id = req.headers.get('X_USER')
|
|
user_id = req.headers.get('X_USER_ID', user_id)
|
|
if user_id is None:
|
|
LOG.debug("Neither X_USER_ID nor X_USER found in request")
|
|
return webob.exc.HTTPUnauthorized()
|
|
# get the roles
|
|
roles = [r.strip() for r in req.headers.get('X_ROLE', '').split(',')]
|
|
if 'X_TENANT_ID' in req.headers:
|
|
# This is the new header since Keystone went to ID/Name
|
|
project_id = req.headers['X_TENANT_ID']
|
|
else:
|
|
# This is for legacy compatibility
|
|
project_id = req.headers['X_TENANT']
|
|
|
|
# Get the auth token
|
|
auth_token = req.headers.get('X_AUTH_TOKEN',
|
|
req.headers.get('X_STORAGE_TOKEN'))
|
|
|
|
# Build a context, including the auth_token...
|
|
remote_address = req.remote_addr
|
|
if CONF.use_forwarded_for:
|
|
remote_address = req.headers.get('X-Forwarded-For', remote_address)
|
|
|
|
service_catalog = None
|
|
if req.headers.get('X_SERVICE_CATALOG') is not None:
|
|
try:
|
|
catalog_header = req.headers.get('X_SERVICE_CATALOG')
|
|
service_catalog = jsonutils.loads(catalog_header)
|
|
except ValueError:
|
|
raise webob.exc.HTTPInternalServerError(
|
|
_('Invalid service catalog json.'))
|
|
|
|
ctx = context.RequestContext(user_id,
|
|
project_id,
|
|
roles=roles,
|
|
auth_token=auth_token,
|
|
remote_address=remote_address,
|
|
service_catalog=service_catalog)
|
|
|
|
req.environ['manila.context'] = ctx
|
|
return self.application
|
|
|
|
|
|
class NoAuthMiddleware(base_wsgi.Middleware):
|
|
"""Return a fake token if one isn't specified."""
|
|
|
|
@webob.dec.wsgify(RequestClass=wsgi.Request)
|
|
def __call__(self, req):
|
|
if 'X-Auth-Token' not in req.headers:
|
|
user_id = req.headers.get('X-Auth-User', 'admin')
|
|
project_id = req.headers.get('X-Auth-Project-Id', 'admin')
|
|
os_url = os.path.join(req.url, project_id)
|
|
res = webob.Response()
|
|
# NOTE(vish): This is expecting and returning Auth(1.1), whereas
|
|
# keystone uses 2.0 auth. We should probably allow
|
|
# 2.0 auth here as well.
|
|
res.headers['X-Auth-Token'] = '%s:%s' % (user_id, project_id)
|
|
res.headers['X-Server-Management-Url'] = os_url
|
|
res.content_type = 'text/plain'
|
|
res.status = '204'
|
|
return res
|
|
|
|
token = req.headers['X-Auth-Token']
|
|
user_id, _sep, project_id = token.partition(':')
|
|
project_id = project_id or user_id
|
|
remote_address = getattr(req, 'remote_address', '127.0.0.1')
|
|
if CONF.use_forwarded_for:
|
|
remote_address = req.headers.get('X-Forwarded-For', remote_address)
|
|
ctx = context.RequestContext(user_id,
|
|
project_id,
|
|
is_admin=True,
|
|
remote_address=remote_address)
|
|
|
|
req.environ['manila.context'] = ctx
|
|
return self.application
|