17381f0e37
I wanted to move the auth plugin loading code out of connection for a couple of reasons: * I wanted to be able to get a list of auth plugins without a connection. * In the future, we'll want to load service extensions which the module loader can handle. * The loading of service extensions needs to happen before we have a connection so we can assemble user preferences for those services. At some point I think the user preference class will have the module loader and handle these things, but I think it would be a lot to digest all those changes. Change-Id: I3abc47a6252bfca26cc1ab2e33553fe06b7b14c2
40 lines
1.2 KiB
Python
40 lines
1.2 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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"""
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Load various modules for authorization and services.
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"""
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from stevedore import extension
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from openstack import exceptions
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class ModuleLoader(object):
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def __init__(self):
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self.auth_mgr = extension.ExtensionManager(
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namespace="openstack.auth.plugin",
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invoke_on_load=False,
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)
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def get_auth_plugin(self, plugin_name):
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if not plugin_name:
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plugin_name = 'identity'
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try:
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return self.auth_mgr[plugin_name].plugin
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except KeyError:
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msg = ('Could not find authorization plugin <%s>' % plugin_name)
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raise exceptions.NoMatchingPlugin(msg)
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def list_auth_plugins(self):
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return self.auth_mgr.names()
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