238 lines
8.8 KiB
Python
238 lines
8.8 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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"""Authentication Library"""
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import argparse
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import logging
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from keystoneauth1.loading import base
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from osc_lib import exceptions as exc
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from osc_lib import utils
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from openstackclient.i18n import _
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LOG = logging.getLogger(__name__)
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# Initialize the list of Authentication plugins early in order
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# to get the command-line options
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PLUGIN_LIST = None
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# List of plugin command line options
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OPTIONS_LIST = {}
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def get_plugin_list():
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"""Gather plugin list and cache it"""
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global PLUGIN_LIST
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if PLUGIN_LIST is None:
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PLUGIN_LIST = base.get_available_plugin_names()
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return PLUGIN_LIST
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def get_options_list():
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"""Gather plugin options so the help action has them available"""
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global OPTIONS_LIST
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if not OPTIONS_LIST:
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for plugin_name in get_plugin_list():
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plugin_options = base.get_plugin_options(plugin_name)
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for o in plugin_options:
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os_name = o.dest.lower().replace('_', '-')
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os_env_name = 'OS_' + os_name.upper().replace('-', '_')
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OPTIONS_LIST.setdefault(
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os_name, {'env': os_env_name, 'help': ''},
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)
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# TODO(mhu) simplistic approach, would be better to only add
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# help texts if they vary from one auth plugin to another
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# also the text rendering is ugly in the CLI ...
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OPTIONS_LIST[os_name]['help'] += 'With %s: %s\n' % (
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plugin_name,
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o.help,
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)
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return OPTIONS_LIST
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def select_auth_plugin(options):
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"""Pick an auth plugin based on --os-auth-type or other options"""
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auth_plugin_name = None
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# Do the token/url check first as this must override the default
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# 'password' set by os-client-config
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# Also, url and token are not copied into o-c-c's auth dict (yet?)
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if options.auth.get('url') and options.auth.get('token'):
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# service token authentication
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auth_plugin_name = 'token_endpoint'
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elif options.auth_type in PLUGIN_LIST:
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# A direct plugin name was given, use it
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auth_plugin_name = options.auth_type
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elif options.auth.get('username'):
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if options.identity_api_version == '3':
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auth_plugin_name = 'v3password'
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elif options.identity_api_version.startswith('2'):
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auth_plugin_name = 'v2password'
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else:
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# let keystoneclient figure it out itself
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auth_plugin_name = 'osc_password'
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elif options.auth.get('token'):
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if options.identity_api_version == '3':
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auth_plugin_name = 'v3token'
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elif options.identity_api_version.startswith('2'):
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auth_plugin_name = 'v2token'
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else:
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# let keystoneclient figure it out itself
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auth_plugin_name = 'token'
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else:
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# The ultimate default is similar to the original behaviour,
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# but this time with version discovery
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auth_plugin_name = 'osc_password'
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LOG.debug("Auth plugin %s selected", auth_plugin_name)
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return auth_plugin_name
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def build_auth_params(auth_plugin_name, cmd_options):
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auth_params = dict(cmd_options.auth)
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if auth_plugin_name:
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LOG.debug('auth_type: %s', auth_plugin_name)
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auth_plugin_loader = base.get_plugin_loader(auth_plugin_name)
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# grab tenant from project for v2.0 API compatibility
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if auth_plugin_name.startswith("v2"):
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if 'project_id' in auth_params:
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auth_params['tenant_id'] = auth_params['project_id']
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del auth_params['project_id']
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if 'project_name' in auth_params:
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auth_params['tenant_name'] = auth_params['project_name']
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del auth_params['project_name']
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else:
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LOG.debug('no auth_type')
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# delay the plugin choice, grab every option
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auth_plugin_loader = None
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plugin_options = set([o.replace('-', '_') for o in get_options_list()])
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for option in plugin_options:
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LOG.debug('fetching option %s', option)
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auth_params[option] = getattr(cmd_options.auth, option, None)
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return (auth_plugin_loader, auth_params)
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def check_valid_authorization_options(options, auth_plugin_name):
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"""Validate authorization options, and provide helpful error messages."""
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if (options.auth.get('project_id') and not
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options.auth.get('domain_id') and not
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options.auth.get('domain_name') and not
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options.auth.get('project_name') and not
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options.auth.get('tenant_id') and not
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options.auth.get('tenant_name')):
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raise exc.CommandError(_(
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'Missing parameter(s): '
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'Set either a project or a domain scope, but not both. Set a '
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'project scope with --os-project-name, OS_PROJECT_NAME, or '
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'auth.project_name. Alternatively, set a domain scope with '
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'--os-domain-name, OS_DOMAIN_NAME or auth.domain_name.'))
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def check_valid_authentication_options(options, auth_plugin_name):
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"""Validate authentication options, and provide helpful error messages."""
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msgs = []
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if auth_plugin_name.endswith('password'):
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if not options.auth.get('username'):
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msgs.append(_('Set a username with --os-username, OS_USERNAME,'
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' or auth.username'))
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if not options.auth.get('auth_url'):
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msgs.append(_('Set an authentication URL, with --os-auth-url,'
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' OS_AUTH_URL or auth.auth_url'))
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elif auth_plugin_name.endswith('token'):
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if not options.auth.get('token'):
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msgs.append(_('Set a token with --os-token, OS_TOKEN or '
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'auth.token'))
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if not options.auth.get('auth_url'):
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msgs.append(_('Set a service AUTH_URL, with --os-auth-url, '
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'OS_AUTH_URL or auth.auth_url'))
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elif auth_plugin_name == 'token_endpoint':
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if not options.auth.get('token'):
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msgs.append(_('Set a token with --os-token, OS_TOKEN or '
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'auth.token'))
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if not options.auth.get('url'):
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msgs.append(_('Set a service URL, with --os-url, OS_URL or '
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'auth.url'))
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if msgs:
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raise exc.CommandError(
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_('Missing parameter(s): \n%s') % '\n'.join(msgs))
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def build_auth_plugins_option_parser(parser):
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"""Auth plugins options builder
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Builds dynamically the list of options expected by each available
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authentication plugin.
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"""
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available_plugins = list(get_plugin_list())
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parser.add_argument(
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'--os-auth-type',
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metavar='<auth-type>',
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dest='auth_type',
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default=utils.env('OS_AUTH_TYPE'),
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help=_('Select an authentication type. Available types: %s.'
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' Default: selected based on --os-username/--os-token'
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' (Env: OS_AUTH_TYPE)') % ', '.join(available_plugins),
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choices=available_plugins
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)
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# Maintain compatibility with old tenant env vars
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envs = {
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'OS_PROJECT_NAME': utils.env(
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'OS_PROJECT_NAME',
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default=utils.env('OS_TENANT_NAME')
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),
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'OS_PROJECT_ID': utils.env(
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'OS_PROJECT_ID',
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default=utils.env('OS_TENANT_ID')
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),
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}
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for o in get_options_list():
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# Remove tenant options from KSC plugins and replace them below
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if 'tenant' not in o:
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parser.add_argument(
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'--os-' + o,
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metavar='<auth-%s>' % o,
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dest=o.replace('-', '_'),
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default=envs.get(
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OPTIONS_LIST[o]['env'],
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utils.env(OPTIONS_LIST[o]['env']),
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),
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help=_('%(help)s\n(Env: %(env)s)') % {
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'help': OPTIONS_LIST[o]['help'],
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'env': OPTIONS_LIST[o]['env'],
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},
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)
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# add tenant-related options for compatibility
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# this is deprecated but still used in some tempest tests...
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parser.add_argument(
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'--os-tenant-name',
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metavar='<auth-tenant-name>',
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dest='os_project_name',
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help=argparse.SUPPRESS,
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)
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parser.add_argument(
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'--os-tenant-id',
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metavar='<auth-tenant-id>',
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dest='os_project_id',
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help=argparse.SUPPRESS,
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)
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return parser
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