# Copyright (c) 2013 Rackspace, Inc. # # 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. """ Command-line interface to the Barbican API. """ from collections import namedtuple import logging import sys from cliff import app from cliff import command from cliff import commandmanager from cliff import complete from cliff import help from keystoneauth1 import identity from keystoneauth1 import loading from keystoneauth1 import session import barbicanclient from barbicanclient._i18n import _LW from barbicanclient import client LOG = logging.getLogger(__name__) _DEFAULT_IDENTITY_API_VERSION = '3' _IDENTITY_API_VERSION_2 = ['2', '2.0'] _IDENTITY_API_VERSION_3 = ['3'] class Barbican(app.App): """Barbican command line interface.""" # verbose logging levels WARNING_LEVEL = 0 INFO_LEVEL = 1 DEBUG_LEVEL = 2 CONSOLE_MESSAGE_FORMAT = '%(message)s' DEBUG_MESSAGE_FORMAT = '%(levelname)s: %(name)s %(message)s' def __init__(self, **kwargs): self.client = None # Patch command.Command to add a default auth_required = True command.Command.auth_required = True # Some commands do not need authentication help.HelpCommand.auth_required = False complete.CompleteCommand.auth_required = False super(Barbican, self).__init__( description=__doc__.strip(), version=barbicanclient.__version__, command_manager=commandmanager.CommandManager( 'openstack.key_manager.v1'), deferred_help=True, **kwargs ) def check_auth_arguments(self, args, api_version=None, raise_exc=False): """Verifies that we have the correct arguments for authentication Supported Keystone v3 combinations: - Project Id - Project Name + Project Domain Name - Project Name + Project Domain Id Supported Keystone v2 combinations: - Tenant Id - Tenant Name """ successful = True v3_arg_combinations = [ args.os_project_id, args.os_project_name and args.os_project_domain_name, args.os_project_name and args.os_project_domain_id ] v2_arg_combinations = [args.os_tenant_id, args.os_tenant_name] # Keystone V3 if not api_version or api_version == _DEFAULT_IDENTITY_API_VERSION: if not any(v3_arg_combinations): msg = ('ERROR: please specify the following --os-project-id or' ' (--os-project-name and --os-project-domain-name) or ' ' (--os-project-name and --os-project-domain-id)') successful = False # Keystone V2 else: if not any(v2_arg_combinations): msg = ('ERROR: please specify --os-tenant-id or' ' --os-tenant-name') successful = False if not successful and raise_exc: raise Exception(msg) return successful def build_kwargs_based_on_version(self, args, api_version=None): if not api_version or api_version == _DEFAULT_IDENTITY_API_VERSION: kwargs = { 'project_id': args.os_project_id, 'project_name': args.os_project_name, 'user_domain_id': args.os_user_domain_id, 'user_domain_name': args.os_user_domain_name, 'project_domain_id': args.os_project_domain_id, 'project_domain_name': args.os_project_domain_name } else: kwargs = { 'tenant_name': args.os_tenant_name, 'tenant_id': args.os_tenant_id } # Return a dictionary with only the populated (not None) values return dict((k, v) for (k, v) in kwargs.items() if v) def create_keystone_session( self, args, api_version, kwargs_dict, auth_type ): # Make sure we have the correct arguments to function self.check_auth_arguments(args, api_version, raise_exc=True) kwargs = self.build_kwargs_based_on_version(args, api_version) kwargs.update(kwargs_dict) _supported_version = _IDENTITY_API_VERSION_2 + _IDENTITY_API_VERSION_3 if not api_version or api_version not in _supported_version: self.stderr.write( "WARNING: The identity version <{0}> is not in supported " "versions <{1}>, falling back to <{2}>.".format( api_version, _IDENTITY_API_VERSION_2 + _IDENTITY_API_VERSION_3, _DEFAULT_IDENTITY_API_VERSION ) ) method = identity.Token if auth_type == 'token' else identity.Password auth = method(**kwargs) cacert = args.os_cacert cert = args.os_cert key = args.os_key insecure = args.insecure if insecure: verify = False else: verify = cacert or True if cert and key: cert = (cert, key) return session.Session(auth=auth, verify=verify, cert=cert) def create_client(self, args): created_client = None endpoint_filter_kwargs = self._get_endpoint_filter_kwargs(args) api_version = args.os_identity_api_version if args.no_auth and args.os_auth_url: raise Exception( 'ERROR: argument --os-auth-url/-A: not allowed ' 'with argument --no-auth/-N' ) if args.no_auth: if not all([args.endpoint, args.os_tenant_id or args.os_project_id]): raise Exception( 'ERROR: please specify --endpoint and ' '--os-project-id (or --os-tenant-id)') created_client = client.Client( endpoint=args.endpoint, project_id=args.os_tenant_id or args.os_project_id, verify=not args.insecure, **endpoint_filter_kwargs ) # Token-based authentication elif args.os_auth_token: if not args.os_auth_url: raise Exception('ERROR: please specify --os-auth-url') token_kwargs = { 'auth_url': args.os_auth_url, 'token': args.os_auth_token } session = self.create_keystone_session( args, api_version, token_kwargs, auth_type='token' ) created_client = client.Client( session=session, endpoint=args.endpoint, **endpoint_filter_kwargs ) # Password-based authentication elif args.os_auth_url: password_kwargs = { 'auth_url': args.os_auth_url, 'password': args.os_password, 'user_id': args.os_user_id, 'username': args.os_username } session = self.create_keystone_session( args, api_version, password_kwargs, auth_type='password' ) created_client = client.Client( session=session, endpoint=args.endpoint, **endpoint_filter_kwargs ) else: raise Exception('ERROR: please specify authentication credentials') return created_client def _get_endpoint_filter_kwargs(self, args): endpoint_filter_keys = ('interface', 'service_type', 'service_name', 'barbican_api_version', 'region_name') kwargs = dict((key, getattr(args, key)) for key in endpoint_filter_keys if getattr(args, key, None)) if 'barbican_api_version' in kwargs: kwargs['version'] = kwargs.pop('barbican_api_version') return kwargs def build_option_parser(self, description, version, argparse_kwargs=None): """Introduces global arguments for the application. This is inherited from the framework. """ parser = super(Barbican, self).build_option_parser( description, version, argparse_kwargs) parser.add_argument('--no-auth', '-N', action='store_true', help='Do not use authentication.') parser.add_argument('--os-identity-api-version', metavar='', default=client.env('OS_IDENTITY_API_VERSION'), help='Specify Identity API version to use. ' 'Defaults to env[OS_IDENTITY_API_VERSION]' ' or 3.') parser.add_argument('--os-auth-url', '-A', metavar='', default=client.env('OS_AUTH_URL'), help='Defaults to env[OS_AUTH_URL].') parser.add_argument('--os-username', '-U', metavar='', default=client.env('OS_USERNAME'), help='Defaults to env[OS_USERNAME].') parser.add_argument('--os-user-id', metavar='', default=client.env('OS_USER_ID'), help='Defaults to env[OS_USER_ID].') parser.add_argument('--os-password', '-P', metavar='', default=client.env('OS_PASSWORD'), help='Defaults to env[OS_PASSWORD].') parser.add_argument('--os-user-domain-id', metavar='', default=client.env('OS_USER_DOMAIN_ID'), help='Defaults to env[OS_USER_DOMAIN_ID].') parser.add_argument('--os-user-domain-name', metavar='', default=client.env('OS_USER_DOMAIN_NAME'), help='Defaults to env[OS_USER_DOMAIN_NAME].') parser.add_argument('--os-tenant-name', '-T', metavar='', default=client.env('OS_TENANT_NAME'), help='Defaults to env[OS_TENANT_NAME].') parser.add_argument('--os-tenant-id', '-I', metavar='', default=client.env('OS_TENANT_ID'), help='Defaults to env[OS_TENANT_ID].') parser.add_argument('--os-project-id', metavar='', default=client.env('OS_PROJECT_ID'), help='Another way to specify tenant ID. ' 'This option is mutually exclusive with ' ' --os-tenant-id. ' 'Defaults to env[OS_PROJECT_ID].') parser.add_argument('--os-project-name', metavar='', default=client.env('OS_PROJECT_NAME'), help='Another way to specify tenant name. ' 'This option is mutually exclusive with ' ' --os-tenant-name. ' 'Defaults to env[OS_PROJECT_NAME].') parser.add_argument('--os-project-domain-id', metavar='', default=client.env('OS_PROJECT_DOMAIN_ID'), help='Defaults to env[OS_PROJECT_DOMAIN_ID].') parser.add_argument('--os-project-domain-name', metavar='', default=client.env('OS_PROJECT_DOMAIN_NAME'), help='Defaults to env[OS_PROJECT_DOMAIN_NAME].') parser.add_argument('--os-auth-token', metavar='', default=client.env('OS_AUTH_TOKEN'), help='Defaults to env[OS_AUTH_TOKEN].') parser.add_argument('--endpoint', '-E', metavar='', default=client.env('BARBICAN_ENDPOINT'), help='Defaults to env[BARBICAN_ENDPOINT].') parser.add_argument('--interface', metavar='', default=client.env('BARBICAN_INTERFACE'), help='Defaults to env[BARBICAN_INTERFACE].') parser.add_argument('--service-type', metavar='', default=client.env('BARBICAN_SERVICE_TYPE'), help='Defaults to env[BARBICAN_SERVICE_TYPE].') parser.add_argument('--service-name', metavar='', default=client.env('BARBICAN_SERVICE_NAME'), help='Defaults to env[BARBICAN_SERVICE_NAME].') parser.add_argument('--region-name', metavar='', default=client.env('BARBICAN_REGION_NAME'), help='Defaults to env[BARBICAN_REGION_NAME].') parser.add_argument('--barbican-api-version', metavar='', default=client.env('BARBICAN_API_VERSION'), help='Defaults to env[BARBICAN_API_VERSION].') parser.epilog = ('See "barbican help COMMAND" for help ' 'on a specific command.') loading.register_session_argparse_arguments(parser) return parser def prepare_to_run_command(self, cmd): """Prepares to run the command Checks if the minimal parameters are provided and creates the client interface. This is inherited from the framework. """ self.client_manager = namedtuple('ClientManager', 'key_manager') if cmd.auth_required: # NOTE(liujiong): cliff sets log level to DEBUG in run function, # need to overwrite this configuration to depress DEBUG messages. self.configure_logging() self.client_manager.key_manager = self.create_client(self.options) def run(self, argv): # If no arguments are provided, usage is displayed if not argv: self.stderr.write(self.parser.format_usage()) return 1 return super(Barbican, self).run(argv) def configure_logging(self): """Create logging handlers for any log output.""" root_logger = logging.getLogger('') # Set log level to INFO root_logger.setLevel(logging.INFO) # Send higher-level messages to the console via stderr console = logging.StreamHandler(self.stderr) console_level = {self.WARNING_LEVEL: logging.WARNING, self.INFO_LEVEL: logging.INFO, self.DEBUG_LEVEL: logging.DEBUG, }.get(self.options.verbose_level, logging.INFO) if logging.DEBUG == console_level: formatter = logging.Formatter(self.DEBUG_MESSAGE_FORMAT) else: formatter = logging.Formatter(self.CONSOLE_MESSAGE_FORMAT) console.setFormatter(formatter) root_logger.addHandler(console) return def main(argv=sys.argv[1:]): logging.basicConfig() LOG.warning(_LW("This Barbican CLI interface has been deprecated and " "will be removed in the O release. Please use the " "openstack unified client instead.")) barbican_app = Barbican() return barbican_app.run(argv) if __name__ == '__main__': # pragma: no cover sys.exit(main(sys.argv[1:]))