iotronic/iotronic/api/app.py

93 lines
2.8 KiB
Python

# -*- encoding: utf-8 -*-
# Copyright © 2012 New Dream Network, LLC (DreamHost)
# 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
import pecan
from iotronic.api import acl
from iotronic.api import config
from iotronic.api import hooks
from iotronic.api import middleware
api_opts = [
cfg.StrOpt(
'auth_strategy',
default='keystone',
help='Authentication strategy used by iotronic-api: one of "keystone" '
'or "noauth". "noauth" should not be used in a production '
'environment because all authentication will be disabled.'),
cfg.BoolOpt(
'pecan_debug',
default=False,
help=(
'Enable pecan debug mode. WARNING: this is insecure '
'and should not be used in a production environment.')),
]
CONF = cfg.CONF
CONF.register_opts(api_opts)
def get_pecan_config():
# Set up the pecan configuration
filename = config.__file__.replace('.pyc', '.py')
return pecan.configuration.conf_from_file(filename)
def setup_app(pecan_config=None, extra_hooks=None):
app_hooks = [hooks.ConfigHook(),
hooks.DBHook(),
hooks.ContextHook(pecan_config.app.acl_public_routes),
hooks.RPCHook(),
hooks.NoExceptionTracebackHook()]
if extra_hooks:
app_hooks.extend(extra_hooks)
if not pecan_config:
pecan_config = get_pecan_config()
if pecan_config.app.enable_acl:
app_hooks.append(hooks.TrustedCallHook())
pecan.configuration.set_config(dict(pecan_config), overwrite=True)
app = pecan.make_app(
pecan_config.app.root,
static_root=pecan_config.app.static_root,
debug=CONF.pecan_debug,
force_canonical=getattr(pecan_config.app, 'force_canonical', True),
hooks=app_hooks,
wrap_app=middleware.ParsableErrorMiddleware,
)
if pecan_config.app.enable_acl:
return acl.install(app, cfg.CONF, pecan_config.app.acl_public_routes)
return app
class VersionSelectorApplication(object):
def __init__(self):
pc = get_pecan_config()
pc.app.enable_acl = (CONF.auth_strategy == 'keystone')
self.v1 = setup_app(pecan_config=pc)
def __call__(self, environ, start_response):
return self.v1(environ, start_response)