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# Copyright 2012-2013 OpenStack Foundation

# Copyright 2015 Dean Troyer

#

# 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 OpenStack APIs"""

import locale

import sys

from osc_lib.api import auth

from osc_lib import shell

from oslo_utils import importutils

import six

import openstackclient

from openstackclient.common import client_config as cloud_config

from openstackclient.common import clientmanager

from openstackclient.common import commandmanager

osprofiler_profiler = importutils.try_import("osprofiler.profiler")

DEFAULT_DOMAIN = 'default'

class OpenStackShell(shell.OpenStackShell):

def __init__(self):

super(OpenStackShell, self).__init__(

description=__doc__.strip(),

version=openstackclient.__version__,

command_manager=commandmanager.CommandManager('openstack.cli'),

deferred_help=True)

self.api_version = {}

# Assume TLS host certificate verification is enabled

self.verify = True

def build_option_parser(self, description, version):

parser = super(OpenStackShell, self).build_option_parser(

description,

version)

parser = clientmanager.build_plugin_option_parser(parser)

parser = auth.build_auth_plugins_option_parser(parser)

return parser

def _final_defaults(self):

super(OpenStackShell, self)._final_defaults()

# Set the default plugin to token_endpoint if url and token are given

if (self.options.url and self.options.token):

# Use service token authentication

self._auth_type = 'token_endpoint'

else:

self._auth_type = 'password'

def _load_plugins(self):

"""Load plugins via stevedore

osc-lib has no opinion on what plugins should be loaded

"""

# Loop through extensions to get API versions

for mod in clientmanager.PLUGIN_MODULES:

default_version = getattr(mod, 'DEFAULT_API_VERSION', None)

# Only replace the first instance of "os", some service names will

# have "os" in their name, like: "antiddos"

option = mod.API_VERSION_OPTION.replace('os_', '', 1)

version_opt = str(self.cloud.config.get(option, default_version))

if version_opt:

api = mod.API_NAME

self.api_version[api] = version_opt

# Add a plugin interface to let the module validate the version

# requested by the user

skip_old_check = False

mod_check_api_version = getattr(mod, 'check_api_version', None)

if mod_check_api_version:

# this throws an exception if invalid

skip_old_check = mod_check_api_version(version_opt)

mod_versions = getattr(mod, 'API_VERSIONS', None)

if not skip_old_check and mod_versions:

if version_opt not in mod_versions:

sorted_versions = sorted(

mod.API_VERSIONS.keys(),

key=lambda s: list(map(int, s.split('.'))))

self.log.warning(

"%s version %s is not in supported versions: %s"

% (api, version_opt, ', '.join(sorted_versions)))

# Command groups deal only with major versions

version = '.v' + version_opt.replace('.', '_').split('_')[0]

cmd_group = 'openstack.' + api.replace('-', '_') + version

self.command_manager.add_command_group(cmd_group)

self.log.debug(

'%(name)s API version %(version)s, cmd group %(group)s',

{'name': api, 'version': version_opt, 'group': cmd_group}

)

def _load_commands(self):

"""Load commands via cliff/stevedore

osc-lib has no opinion on what commands should be loaded

"""

# Commands that span multiple APIs

self.command_manager.add_command_group(

'openstack.common')

# This is the naive extension implementation referred to in

# blueprint 'client-extensions'

# Extension modules can register their commands in an

# 'openstack.extension' entry point group:

# entry_points={

# 'openstack.extension': [

# 'list_repo=qaz.github.repo:ListRepo',

# 'show_repo=qaz.github.repo:ShowRepo',

# ],

# }

self.command_manager.add_command_group(

'openstack.extension')

def initialize_app(self, argv):

super(OpenStackShell, self).initialize_app(argv)

# Argument precedence is really broken in multiple places

# so we're just going to fix it here until o-c-c and osc-lib

# get sorted out.

# TODO(dtroyer): remove when os-client-config and osc-lib are fixed

# First, throw away what has already been done with o-c-c and

# use our own.

try:

self.cloud_config = cloud_config.OSC_Config(

override_defaults={

'interface': None,

'auth_type': self._auth_type,

},

)

except (IOError, OSError):

self.log.critical("Could not read clouds.yaml configuration file")

self.print_help_if_requested()

raise

if not self.options.debug:

self.options.debug = None

# NOTE(dtroyer): Need to do this with validate=False to defer the

# auth plugin handling to ClientManager.setup_auth()

self.cloud = self.cloud_config.get_one_cloud(

cloud=self.options.cloud,

argparse=self.options,

validate=False,

)

# Then, re-create the client_manager with the correct arguments

self.client_manager = clientmanager.ClientManager(

cli_options=self.cloud,

api_version=self.api_version,

pw_func=shell.prompt_for_password,

)

def prepare_to_run_command(self, cmd):

"""Set up auth and API versions"""

# TODO(dtroyer): Move this to osc-lib, remove entire method when 1.4.0

# release is minimum version is in global-requirements

# NOTE(dtroyer): If auth is not required for a command, skip

# get_one_Cloud()'s validation to avoid loading plugins

validate = cmd.auth_required

# Force skipping auth for commands that do not need it

# NOTE(dtroyer): This is here because ClientManager does not have

# visibility into the Command object to get

# auth_required. It needs to move into osc-lib

self.client_manager._auth_required = cmd.auth_required

# Validate auth options

self.cloud = self.cloud_config.get_one_cloud(

cloud=self.options.cloud,

argparse=self.options,

validate=validate,

)

# Push the updated args into ClientManager

self.client_manager._cli_options = self.cloud

return super(OpenStackShell, self).prepare_to_run_command(cmd)

def main(argv=None):

if argv is None:

argv = sys.argv[1:]

if six.PY2:

# Emulate Py3, decode argv into Unicode based on locale so that

# commands always see arguments as text instead of binary data

encoding = locale.getpreferredencoding()

if encoding:

argv = map(lambda arg: arg.decode(encoding), argv)

return OpenStackShell().run(argv)

if __name__ == "__main__":

sys.exit(main())