52449d4019
It should be dbapi instance, a mistake when renaming instances to servers. Change-Id: I5a9ca3720c7b261737dacb2cfbb671a0849de051
155 lines
5.3 KiB
Python
155 lines
5.3 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 New Dream Network, LLC (DreamHost)
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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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from oslo_config import cfg
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from oslo_context import context
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from pecan import hooks
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from six.moves import http_client
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from mogan.common import policy
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from mogan.db import api as dbapi
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from mogan.engine import api as engineapi
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class ConfigHook(hooks.PecanHook):
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"""Attach the config object to the request so controllers can get to it."""
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def before(self, state):
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state.request.cfg = cfg.CONF
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class DBHook(hooks.PecanHook):
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"""Attach the dbapi object to the request so controllers can get to it."""
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def before(self, state):
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state.request.dbapi = dbapi.get_instance()
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class EngineAPIHook(hooks.PecanHook):
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"""Attach the engine_api object to the request."""
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def __init__(self):
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self.engine_api = engineapi.API()
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def before(self, state):
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state.request.engine_api = self.engine_api
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class ContextHook(hooks.PecanHook):
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"""Configures a request context and attaches it to the request.
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The following HTTP request headers are used:
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X-User-Id or X-User:
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Used for context.user.
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X-Tenant-Id or X-Tenant:
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Used for context.tenant.
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X-Auth-Token:
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Used for context.auth_token.
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X-Roles:
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Used for setting context.is_admin flag to either True or False.
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The flag is set to True, if X-Roles contains either an administrator
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or admin substring. Otherwise it is set to False.
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"""
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def __init__(self, public_api_routes):
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self.public_api_routes = public_api_routes
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super(ContextHook, self).__init__()
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def before(self, state):
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headers = state.request.headers
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creds = {
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'user_name': headers.get('X-User-Name'),
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'user': headers.get('X-User-Id'),
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'project_name': headers.get('X-Project-Name'),
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'tenant': headers.get('X-Project-Id'),
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'domain': headers.get('X-User-Domain-Id'),
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'domain_name': headers.get('X-User-Domain-Name'),
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'auth_token': headers.get('X-Auth-Token'),
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'roles': headers.get('X-Roles', '').split(','),
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}
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is_admin = policy.check('is_admin', creds, creds)
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state.request.context = context.RequestContext(
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is_admin=is_admin, **creds)
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def after(self, state):
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if state.request.context == {}:
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# An incorrect url path will not create RequestContext
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return
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# NOTE(lintan): RequestContext will generate a request_id if no one
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# passing outside, so it always contain a request_id.
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request_id = state.request.context.request_id
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state.response.headers['Openstack-Request-Id'] = request_id
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class NoExceptionTracebackHook(hooks.PecanHook):
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"""Workaround rpc.common: deserialize_remote_exception.
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deserialize_remote_exception builds rpc exception traceback into error
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message which is then sent to the client. Such behavior is a security
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concern so this hook is aimed to cut-off traceback from the error message.
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"""
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# NOTE(max_lobur): 'after' hook used instead of 'on_error' because
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# 'on_error' never fired for wsme+pecan pair. wsme @wsexpose decorator
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# catches and handles all the errors, so 'on_error' dedicated for unhandled
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# exceptions never fired.
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def after(self, state):
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# Omit empty body. Some errors may not have body at this level yet.
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if not state.response.body:
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return
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# Do nothing if there is no error.
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# Status codes in the range 200 (OK) to 399 (400 = BAD_REQUEST) are not
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# an error.
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if (http_client.OK <= state.response.status_int <
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http_client.BAD_REQUEST):
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return
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json_body = state.response.json
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# Do not remove traceback when traceback config is set
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if cfg.CONF.debug_tracebacks_in_api:
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return
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faultstring = json_body.get('faultstring')
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traceback_marker = 'Traceback (most recent call last):'
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if faultstring and traceback_marker in faultstring:
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# Cut-off traceback.
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faultstring = faultstring.split(traceback_marker, 1)[0]
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# Remove trailing newlines and spaces if any.
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json_body['faultstring'] = faultstring.rstrip()
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# Replace the whole json. Cannot change original one because it's
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# generated on the fly.
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state.response.json = json_body
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class PublicUrlHook(hooks.PecanHook):
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"""Attach the right public_url to the request.
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Attach the right public_url to the request so resources can create
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links even when the API service is behind a proxy or SSL terminator.
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"""
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def before(self, state):
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state.request.public_url = (cfg.CONF.api.public_endpoint or
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state.request.host_url)
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