121 lines
3.9 KiB
Python
121 lines
3.9 KiB
Python
# 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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import gc
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import oslo_messaging
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from oslo_config import cfg
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from oslo_context import context
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from oslo_policy import opts
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from oslo_policy import policy
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from pecan import hooks
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from vitrage.common import policies
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from vitrage.coordination import coordination
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from vitrage import messaging
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from vitrage import rpc as vitrage_rpc
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from vitrage import storage
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CONF = cfg.CONF
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# TODO(gmann): Remove setting the default value of config policy_file
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# once oslo_policy change the default value to 'policy.yaml'.
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# https://github.com/openstack/oslo.policy/blob/a626ad12fe5a3abd49d70e3e5b95589d279ab578/oslo_policy/opts.py#L49
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DEFAULT_POLICY_FILE = 'policy.yaml'
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opts.set_defaults(CONF, DEFAULT_POLICY_FILE)
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class ConfigHook(hooks.PecanHook):
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"""Attach the configuration and policy enforcer object to the request. """
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def __init__(self):
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self.enforcer = policy.Enforcer(CONF)
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self._register_rules()
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def _register_rules(self):
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self.enforcer.register_defaults(policies.list_rules())
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def before(self, state):
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state.request.cfg = CONF
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state.request.enforcer = self.enforcer
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class RPCHook(hooks.PecanHook):
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"""Create and attach an rpc to the request. """
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def __init__(self):
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transport = messaging.get_rpc_transport()
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target = oslo_messaging.Target(topic=CONF.rpc_topic)
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self.client = vitrage_rpc.get_client(transport, target)
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self.check_backend = CONF.api.check_backend
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def on_route(self, state):
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state.request.client = self.client
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state.request.check_backend = self.check_backend
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class TranslationHook(hooks.PecanHook):
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def after(self, state):
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# After a request has been done, we need to see if
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# ClientSideError has added an error onto the response.
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# If it has we need to get it info the thread-safe WSGI
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# environ to be used by the ParsableErrorMiddleware.
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if hasattr(state.response, 'translatable_error'):
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state.request.environ['translatable_error'] = (
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state.response.translatable_error)
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class ContextHook(hooks.PecanHook):
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def before(self, state):
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user_id = state.request.headers.get('X-User-Id')
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user_id = state.request.headers.get('X-User', user_id)
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user_name = state.request.headers.get('X-User-Name', '')
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project_id = state.request.headers.get('X-Project-Id')
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auth_token = state.request.headers.get('X-Auth-Token')
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# TODO(DANY) use roles
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# roles = pecan.request.headers.get('X-Roles', '').split(',')
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# roles = [r.strip() for r in roles]
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ctx = context.RequestContext(auth_token=auth_token, user=user_id,
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# roles=roles,
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project_id=project_id,
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is_admin=(user_name == 'admin'))
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# Inject the context...
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state.request.context = ctx.to_dict()
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class DBHook(hooks.PecanHook):
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def __init__(self):
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self.storage = storage.get_connection_from_config()
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def before(self, state):
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state.request.storage = self.storage
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class GCHook(hooks.PecanHook):
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def after(self, state):
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gc.collect()
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class CoordinatorHook(hooks.PecanHook):
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def __init__(self):
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self.coordinator = coordination.Coordinator()
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self.coordinator.start()
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self.coordinator.join_group()
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def before(self, state):
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state.request.coordinator = self.coordinator
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