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# Copyright 2017 Huawei Technologies Co.,LTD.
# 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.
from oslo_config import cfg
from oslo_context import context
from pecan import hooks
from cyborg.common import policy
from cyborg.conductor import rpcapi
class ConfigHook(hooks.PecanHook):
"""Attach the config object to the request so controllers can get to it."""
def before(self, state):
state.request.cfg = cfg.CONF
class PublicUrlHook(hooks.PecanHook):
"""Attach the right public_url to the request.
Attach the right public_url to the request so resources can create
links even when the API service is behind a proxy or SSL terminator.
"""
def before(self, state):
state.request.public_url = (
cfg.CONF.api.public_endpoint or state.request.host_url)
class ConductorAPIHook(hooks.PecanHook):
"""Attach the conductor_api object to the request."""
def __init__(self):
self.conductor_api = rpcapi.ConductorAPI()
def before(self, state):
state.request.conductor_api = self.conductor_api
class ContextHook(hooks.PecanHook):
"""Configures a request context and attaches it to the request.
The following HTTP request headers are used:
X-User-Id or X-User:
Used for context.user.
X-Tenant-Id or X-Tenant:
Used for context.tenant.
X-Auth-Token:
Used for context.auth_token.
X-Roles:
Used for setting context.is_admin flag to either True or False.
The flag is set to True, if X-Roles contains either an administrator
or admin substring. Otherwise it is set to False.
"""
def __init__(self, public_api_routes):
self.public_api_routes = public_api_routes
super(ContextHook, self).__init__()
def before(self, state):
headers = state.request.headers
'''
creds = {
'user_name': headers.get('X-User-Name'),
'user': headers.get('X-User-Id'),
'project_name': headers.get('X-Project-Name'),
'tenant': headers.get('X-Project-Id'),
'domain': headers.get('X-User-Domain-Id'),
'domain_name': headers.get('X-User-Domain-Name'),
'auth_token': headers.get('X-Auth-Token'),
'roles': headers.get('X-Roles', '').split(','),
}'''
creds = {
'user': headers.get('X-User-Id'),
'tenant': headers.get('X-Project-Id'),
'domain': headers.get('X-User-Domain-Id',''),
'auth_token': headers.get('X-Auth-Token'),
'roles': headers.get('X-Roles', '').split(','),
}
is_admin = policy.authorize('is_admin', creds, creds)
state.request.context = context.RequestContext(
is_admin=is_admin, **creds)
def after(self, state):
if state.request.context == {}:
# An incorrect url path will not create RequestContext
return
# RequestContext will generate a request_id if no one
# passing outside, so it always contain a request_id.
request_id = state.request.context.request_id
state.response.headers['Openstack-Request-Id'] = request_id
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