Add security group commands

* Add security group: create, delete, list, set, show
* Add server: add secgroup, remove secgroup
* Add security group rule: create, delete, list
* Add Oslo's strutils and gettextutils

* Adds parseractions.RangeAction() to handle option arguments of either a single number
  or a range of numbers: '--port 25'  or '--port 1024:65535'

Blueprint: nova-client

Change-Id: Iad2de1b273ba29197709fc4c6a1036b4ae99725f
This commit is contained in:
Dean Troyer 2013-07-12 15:49:03 -05:00
parent 65d2a14e3e
commit c94e262df8
9 changed files with 996 additions and 2 deletions

View File

@ -5,6 +5,7 @@ module=cfg
module=iniparser
module=install_venv_common
module=openstackkeyring
module=strutils
# The base module to hold the copy of openstack.common
base=openstackclient

View File

@ -32,3 +32,27 @@ class KeyValueAction(argparse.Action):
getattr(namespace, self.dest, {}).update([values.split('=', 1)])
else:
getattr(namespace, self.dest, {}).pop(values, None)
class RangeAction(argparse.Action):
"""A custom action to parse a single value or a range of values."""
def __call__(self, parser, namespace, values, option_string=None):
range = values.split(':')
if len(range) == 0:
# Nothing passed, return a zero default
setattr(namespace, self.dest, (0, 0))
elif len(range) == 1:
# Only a single value is present
setattr(namespace, self.dest, (int(range[0]), int(range[0])))
elif len(range) == 2:
# Range of two values
if int(range[0]) <= int(range[1]):
setattr(namespace, self.dest, (int(range[0]), int(range[1])))
else:
msg = "Invalid range, %s is not less than %s" % \
(range[0], range[1])
raise argparse.ArgumentError(self, msg)
else:
# Too many values
msg = "Invalid range, too many values"
raise argparse.ArgumentError(self, msg)

View File

@ -16,11 +16,13 @@
"""Common client utilities"""
import os
import six
import sys
import time
import uuid
from openstackclient.common import exceptions
from openstackclient.openstack.common import strutils
def find_resource(manager, name_or_id):
@ -84,7 +86,8 @@ def format_dict(data):
output = ""
for s in data:
output = output + s + "='" + data[s] + "', "
output = output + s + "='" + \
strutils.safe_encode(six.text_type(data[s])) + "', "
return output[:-2]

View File

@ -0,0 +1,394 @@
# Copyright 2012 OpenStack Foundation
# Copyright 2013 Nebula 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.
#
"""Compute v2 Security Group action implementations"""
import logging
import six
from cliff import command
from cliff import lister
from cliff import show
from novaclient.v1_1 import security_group_rules
from openstackclient.common import parseractions
from openstackclient.common import utils
def _xform_security_group_rule(sgroup):
info = {}
info.update(sgroup)
info.update(
{'port_range': "%u:%u" % (
info.pop('from_port'),
info.pop('to_port'),
)}
)
info['ip_range'] = info['ip_range']['cidr']
if info['ip_protocol'] == 'icmp':
info['port_range'] = ''
return info
class CreateSecurityGroup(show.ShowOne):
"""Create a new security group"""
log = logging.getLogger(__name__ + ".CreateSecurityGroup")
def get_parser(self, prog_name):
parser = super(CreateSecurityGroup, self).get_parser(prog_name)
parser.add_argument(
"name",
metavar="<name>",
help="New security group name",
)
parser.add_argument(
"--description",
metavar="<description>",
help="Security group description",
)
return parser
def take_action(self, parsed_args):
self.log.debug("take_action(%s)" % parsed_args)
compute_client = self.app.client_manager.compute
data = compute_client.security_groups.create(
parsed_args.name,
parsed_args.description,
)
info = {}
info.update(data._info)
return zip(*sorted(six.iteritems(info)))
class DeleteSecurityGroup(command.Command):
"""Delete a security group"""
log = logging.getLogger(__name__ + '.DeleteSecurityGroup')
def get_parser(self, prog_name):
parser = super(DeleteSecurityGroup, self).get_parser(prog_name)
parser.add_argument(
'group',
metavar='<group>',
help='Name or ID of security group to delete',
)
return parser
def take_action(self, parsed_args):
self.log.debug('take_action(%s)' % parsed_args)
compute_client = self.app.client_manager.compute
data = utils.find_resource(
compute_client.security_groups,
parsed_args.group,
)
compute_client.security_groups.delete(data.id)
return
class ListSecurityGroup(lister.Lister):
"""List all security groups"""
log = logging.getLogger(__name__ + ".ListSecurityGroup")
def get_parser(self, prog_name):
parser = super(ListSecurityGroup, self).get_parser(prog_name)
parser.add_argument(
'--all-projects',
action='store_true',
default=False,
help='Display information from all projects (admin only)',
)
return parser
def take_action(self, parsed_args):
def _get_project(project_id):
try:
return getattr(project_hash[project_id], 'name', project_id)
except KeyError:
return project_id
self.log.debug("take_action(%s)" % parsed_args)
compute_client = self.app.client_manager.compute
columns = (
"ID",
"Name",
"Description",
)
column_headers = columns
if parsed_args.all_projects:
# TODO(dtroyer): Translate Project_ID to Project (name)
columns = columns + ('Tenant ID',)
column_headers = column_headers + ('Project',)
search = {'all_tenants': parsed_args.all_projects}
data = compute_client.security_groups.list(search_opts=search)
projects = self.app.client_manager.identity.projects.list()
project_hash = {}
for project in projects:
project_hash[project.id] = project
return (column_headers,
(utils.get_item_properties(
s, columns,
formatters={'Tenant ID': _get_project},
) for s in data))
class SetSecurityGroup(show.ShowOne):
"""Set security group properties"""
log = logging.getLogger(__name__ + '.SetSecurityGroup')
def get_parser(self, prog_name):
parser = super(SetSecurityGroup, self).get_parser(prog_name)
parser.add_argument(
'group',
metavar='<group>',
help='Name or ID of security group to change',
)
parser.add_argument(
'--name',
metavar='<new-name>',
help='New security group name',
)
parser.add_argument(
"--description",
metavar="<description>",
help="New security group name",
)
return parser
def take_action(self, parsed_args):
self.log.debug('take_action(%s)' % parsed_args)
compute_client = self.app.client_manager.compute
data = utils.find_resource(
compute_client.security_groups,
parsed_args.group,
)
if parsed_args.name:
data.name = parsed_args.name
if parsed_args.description:
data.description = parsed_args.description
info = {}
info.update(compute_client.security_groups.update(
data,
data.name,
data.description,
)._info)
if info:
return zip(*sorted(six.iteritems(info)))
else:
return ({}, {})
class ShowSecurityGroup(show.ShowOne):
"""Show a specific security group"""
log = logging.getLogger(__name__ + '.ShowSecurityGroup')
def get_parser(self, prog_name):
parser = super(ShowSecurityGroup, self).get_parser(prog_name)
parser.add_argument(
'group',
metavar='<group>',
help='Name or ID of security group to change',
)
return parser
def take_action(self, parsed_args):
self.log.debug('take_action(%s)' % parsed_args)
compute_client = self.app.client_manager.compute
info = {}
info.update(utils.find_resource(
compute_client.security_groups,
parsed_args.group,
)._info)
rules = []
for r in info['rules']:
rules.append(utils.format_dict(_xform_security_group_rule(r)))
# Format rules into a list of strings
info.update(
{'rules': rules}
)
# Map 'tenant_id' column to 'project_id'
info.update(
{'project_id': info.pop('tenant_id')}
)
return zip(*sorted(six.iteritems(info)))
class CreateSecurityGroupRule(show.ShowOne):
"""Create a new security group rule"""
log = logging.getLogger(__name__ + ".CreateSecurityGroupRule")
def get_parser(self, prog_name):
parser = super(CreateSecurityGroupRule, self).get_parser(prog_name)
parser.add_argument(
'group',
metavar='<group>',
help='Create rule in this security group',
)
parser.add_argument(
"--proto",
metavar="<proto>",
default="tcp",
help="IP protocol (icmp, tcp, udp; default: tcp)",
)
parser.add_argument(
"--src-ip",
metavar="<ip-address>",
default="0.0.0.0/0",
help="Source IP (may use CIDR notation; default: 0.0.0.0/0)",
)
parser.add_argument(
"--dst-port",
metavar="<port-range>",
action=parseractions.RangeAction,
help="Destination port, may be a range: 137:139 (default: 0; "
"only required for proto tcp and udp)",
)
return parser
def take_action(self, parsed_args):
self.log.debug("take_action(%s)" % parsed_args)
compute_client = self.app.client_manager.compute
group = utils.find_resource(
compute_client.security_groups,
parsed_args.group,
)
from_port, to_port = parsed_args.dst_port
data = compute_client.security_group_rules.create(
group.id,
parsed_args.proto,
from_port,
to_port,
parsed_args.src_ip,
)
info = _xform_security_group_rule(data._info)
return zip(*sorted(six.iteritems(info)))
class DeleteSecurityGroupRule(command.Command):
"""Delete a security group rule"""
log = logging.getLogger(__name__ + '.DeleteSecurityGroupRule')
def get_parser(self, prog_name):
parser = super(DeleteSecurityGroupRule, self).get_parser(prog_name)
parser.add_argument(
'group',
metavar='<group>',
help='Create rule in this security group',
)
parser.add_argument(
"--proto",
metavar="<proto>",
default="tcp",
help="IP protocol (icmp, tcp, udp; default: tcp)",
)
parser.add_argument(
"--src-ip",
metavar="<ip-address>",
default="0.0.0.0/0",
help="Source IP (may use CIDR notation; default: 0.0.0.0/0)",
)
parser.add_argument(
"--dst-port",
metavar="<port-range>",
action=parseractions.RangeAction,
help="Destination port, may be a range: 137:139 (default: 0; "
"only required for proto tcp and udp)",
)
return parser
def take_action(self, parsed_args):
self.log.debug('take_action(%s)' % parsed_args)
compute_client = self.app.client_manager.compute
group = utils.find_resource(
compute_client.security_groups,
parsed_args.group,
)
from_port, to_port = parsed_args.dst_port
# sigh...delete by ID?
compute_client.security_group_rules.delete(
group.id,
parsed_args.proto,
from_port,
to_port,
parsed_args.src_ip,
)
return
class ListSecurityGroupRule(lister.Lister):
"""List all security group rules"""
log = logging.getLogger(__name__ + ".ListSecurityGroupRule")
def get_parser(self, prog_name):
parser = super(ListSecurityGroupRule, self).get_parser(prog_name)
parser.add_argument(
'group',
metavar='<group>',
help='Create rule in this security group',
)
return parser
def take_action(self, parsed_args):
self.log.debug("take_action(%s)" % parsed_args)
compute_client = self.app.client_manager.compute
group = utils.find_resource(
compute_client.security_groups,
parsed_args.group,
)
# Argh, the rules are not Resources...
rules = []
for rule in group.rules:
rules.append(security_group_rules.SecurityGroupRule(
compute_client.security_group_rules,
_xform_security_group_rule(rule),
))
columns = column_headers = (
"ID",
"IP Protocol",
"IP Range",
"Port Range",
)
return (column_headers,
(utils.get_item_properties(
s, columns,
) for s in rules))

View File

@ -141,6 +141,43 @@ class AddServerVolume(command.Command):
)
class AddServerSecurityGroup(command.Command):
"""Add security group to server"""
log = logging.getLogger(__name__ + '.AddServerSecurityGroup')
def get_parser(self, prog_name):
parser = super(AddServerSecurityGroup, self).get_parser(prog_name)
parser.add_argument(
'server',
metavar='<server>',
help='Name or ID of server to use',
)
parser.add_argument(
'group',
metavar='<group>',
help='Name or ID of security group to add to server',
)
return parser
def take_action(self, parsed_args):
self.log.debug("take_action(%s)" % parsed_args)
compute_client = self.app.client_manager.compute
server = utils.find_resource(
compute_client.servers,
parsed_args.server,
)
security_group = utils.find_resource(
compute_client.security_groups,
parsed_args.group,
)
server.add_security_group(security_group)
return
class CreateServer(show.ShowOne):
"""Create a new server"""
@ -731,6 +768,42 @@ class RebuildServer(show.ShowOne):
return zip(*sorted(details.iteritems()))
class RemoveServerSecurityGroup(command.Command):
"""Remove security group from server"""
log = logging.getLogger(__name__ + '.RemoveServerSecurityGroup')
def get_parser(self, prog_name):
parser = super(RemoveServerSecurityGroup, self).get_parser(prog_name)
parser.add_argument(
'server',
metavar='<server>',
help='Name or ID of server to use',
)
parser.add_argument(
'group',
metavar='<group>',
help='Name or ID of security group to remove from server',
)
return parser
def take_action(self, parsed_args):
self.log.debug("take_action(%s)" % parsed_args)
compute_client = self.app.client_manager.compute
server = utils.find_resource(
compute_client.servers,
parsed_args.server,
)
security_group = utils.find_resource(
compute_client.security_groups,
parsed_args.group,
)
server.remove_security_group(security_group)
class RemoveServerVolume(command.Command):
"""Remove volume from server"""

View File

@ -15,6 +15,7 @@
import logging
from keystoneclient.v2_0 import client as identity_client_v2_0
from openstackclient.common import utils
@ -22,7 +23,7 @@ LOG = logging.getLogger(__name__)
API_NAME = 'identity'
API_VERSIONS = {
'2.0': 'keystoneclient.v2_0.client.Client',
'2.0': 'openstackclient.identity.client.IdentityClientv2_0',
'3': 'keystoneclient.v3.client.Client',
}
@ -48,3 +49,13 @@ def make_client(instance):
auth_url=instance._auth_url,
region_name=instance._region_name)
return client
class IdentityClientv2_0(identity_client_v2_0.Client):
"""Tweak the earlier client class to deal with some changes"""
def __getattr__(self, name):
# Map v3 'projects' back to v2 'tenants'
if name == "projects":
return self.tenants
else:
raise AttributeError, name

View File

@ -0,0 +1,259 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 Red Hat, Inc.
# All Rights Reserved.
# Copyright 2013 IBM Corp.
#
# 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.
"""
gettext for openstack-common modules.
Usual usage in an openstack.common module:
from openstackclient.openstack.common.gettextutils import _
"""
import copy
import gettext
import logging.handlers
import os
import re
import UserString
import six
_localedir = os.environ.get('openstackclient'.upper() + '_LOCALEDIR')
_t = gettext.translation('openstackclient', localedir=_localedir, fallback=True)
def _(msg):
return _t.ugettext(msg)
def install(domain):
"""Install a _() function using the given translation domain.
Given a translation domain, install a _() function using gettext's
install() function.
The main difference from gettext.install() is that we allow
overriding the default localedir (e.g. /usr/share/locale) using
a translation-domain-specific environment variable (e.g.
NOVA_LOCALEDIR).
"""
gettext.install(domain,
localedir=os.environ.get(domain.upper() + '_LOCALEDIR'),
unicode=True)
"""
Lazy gettext functionality.
The following is an attempt to introduce a deferred way
to do translations on messages in OpenStack. We attempt to
override the standard _() function and % (format string) operation
to build Message objects that can later be translated when we have
more information. Also included is an example LogHandler that
translates Messages to an associated locale, effectively allowing
many logs, each with their own locale.
"""
def get_lazy_gettext(domain):
"""Assemble and return a lazy gettext function for a given domain.
Factory method for a project/module to get a lazy gettext function
for its own translation domain (i.e. nova, glance, cinder, etc.)
"""
def _lazy_gettext(msg):
"""Create and return a Message object.
Message encapsulates a string so that we can translate it later when
needed.
"""
return Message(msg, domain)
return _lazy_gettext
class Message(UserString.UserString, object):
"""Class used to encapsulate translatable messages."""
def __init__(self, msg, domain):
# _msg is the gettext msgid and should never change
self._msg = msg
self._left_extra_msg = ''
self._right_extra_msg = ''
self.params = None
self.locale = None
self.domain = domain
@property
def data(self):
# NOTE(mrodden): this should always resolve to a unicode string
# that best represents the state of the message currently
localedir = os.environ.get(self.domain.upper() + '_LOCALEDIR')
if self.locale:
lang = gettext.translation(self.domain,
localedir=localedir,
languages=[self.locale],
fallback=True)
else:
# use system locale for translations
lang = gettext.translation(self.domain,
localedir=localedir,
fallback=True)
full_msg = (self._left_extra_msg +
lang.ugettext(self._msg) +
self._right_extra_msg)
if self.params is not None:
full_msg = full_msg % self.params
return six.text_type(full_msg)
def _save_dictionary_parameter(self, dict_param):
full_msg = self.data
# look for %(blah) fields in string;
# ignore %% and deal with the
# case where % is first character on the line
keys = re.findall('(?:[^%]|^)%\((\w*)\)[a-z]', full_msg)
# if we don't find any %(blah) blocks but have a %s
if not keys and re.findall('(?:[^%]|^)%[a-z]', full_msg):
# apparently the full dictionary is the parameter
params = copy.deepcopy(dict_param)
else:
params = {}
for key in keys:
try:
params[key] = copy.deepcopy(dict_param[key])
except TypeError:
# cast uncopyable thing to unicode string
params[key] = unicode(dict_param[key])
return params
def _save_parameters(self, other):
# we check for None later to see if
# we actually have parameters to inject,
# so encapsulate if our parameter is actually None
if other is None:
self.params = (other, )
elif isinstance(other, dict):
self.params = self._save_dictionary_parameter(other)
else:
# fallback to casting to unicode,
# this will handle the problematic python code-like
# objects that cannot be deep-copied
try:
self.params = copy.deepcopy(other)
except TypeError:
self.params = unicode(other)
return self
# overrides to be more string-like
def __unicode__(self):
return self.data
def __str__(self):
return self.data.encode('utf-8')
def __getstate__(self):
to_copy = ['_msg', '_right_extra_msg', '_left_extra_msg',
'domain', 'params', 'locale']
new_dict = self.__dict__.fromkeys(to_copy)
for attr in to_copy:
new_dict[attr] = copy.deepcopy(self.__dict__[attr])
return new_dict
def __setstate__(self, state):
for (k, v) in state.items():
setattr(self, k, v)
# operator overloads
def __add__(self, other):
copied = copy.deepcopy(self)
copied._right_extra_msg += other.__str__()
return copied
def __radd__(self, other):
copied = copy.deepcopy(self)
copied._left_extra_msg += other.__str__()
return copied
def __mod__(self, other):
# do a format string to catch and raise
# any possible KeyErrors from missing parameters
self.data % other
copied = copy.deepcopy(self)
return copied._save_parameters(other)
def __mul__(self, other):
return self.data * other
def __rmul__(self, other):
return other * self.data
def __getitem__(self, key):
return self.data[key]
def __getslice__(self, start, end):
return self.data.__getslice__(start, end)
def __getattribute__(self, name):
# NOTE(mrodden): handle lossy operations that we can't deal with yet
# These override the UserString implementation, since UserString
# uses our __class__ attribute to try and build a new message
# after running the inner data string through the operation.
# At that point, we have lost the gettext message id and can just
# safely resolve to a string instead.
ops = ['capitalize', 'center', 'decode', 'encode',
'expandtabs', 'ljust', 'lstrip', 'replace', 'rjust', 'rstrip',
'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill']
if name in ops:
return getattr(self.data, name)
else:
return UserString.UserString.__getattribute__(self, name)
class LocaleHandler(logging.Handler):
"""Handler that can have a locale associated to translate Messages.
A quick example of how to utilize the Message class above.
LocaleHandler takes a locale and a target logging.Handler object
to forward LogRecord objects to after translating the internal Message.
"""
def __init__(self, locale, target):
"""Initialize a LocaleHandler
:param locale: locale to use for translating messages
:param target: logging.Handler object to forward
LogRecord objects to after translation
"""
logging.Handler.__init__(self)
self.locale = locale
self.target = target
def emit(self, record):
if isinstance(record.msg, Message):
# set the locale and resolve to a string
record.msg.locale = self.locale
self.target.emit(record)

View File

@ -0,0 +1,218 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack Foundation.
# 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.
"""
System-level utilities and helper functions.
"""
import re
import sys
import unicodedata
import six
from openstackclient.openstack.common.gettextutils import _ # noqa
# Used for looking up extensions of text
# to their 'multiplied' byte amount
BYTE_MULTIPLIERS = {
'': 1,
't': 1024 ** 4,
'g': 1024 ** 3,
'm': 1024 ** 2,
'k': 1024,
}
BYTE_REGEX = re.compile(r'(^-?\d+)(\D*)')
TRUE_STRINGS = ('1', 't', 'true', 'on', 'y', 'yes')
FALSE_STRINGS = ('0', 'f', 'false', 'off', 'n', 'no')
SLUGIFY_STRIP_RE = re.compile(r"[^\w\s-]")
SLUGIFY_HYPHENATE_RE = re.compile(r"[-\s]+")
def int_from_bool_as_string(subject):
"""Interpret a string as a boolean and return either 1 or 0.
Any string value in:
('True', 'true', 'On', 'on', '1')
is interpreted as a boolean True.
Useful for JSON-decoded stuff and config file parsing
"""
return bool_from_string(subject) and 1 or 0
def bool_from_string(subject, strict=False):
"""Interpret a string as a boolean.
A case-insensitive match is performed such that strings matching 't',
'true', 'on', 'y', 'yes', or '1' are considered True and, when
`strict=False`, anything else is considered False.
Useful for JSON-decoded stuff and config file parsing.
If `strict=True`, unrecognized values, including None, will raise a
ValueError which is useful when parsing values passed in from an API call.
Strings yielding False are 'f', 'false', 'off', 'n', 'no', or '0'.
"""
if not isinstance(subject, six.string_types):
subject = str(subject)
lowered = subject.strip().lower()
if lowered in TRUE_STRINGS:
return True
elif lowered in FALSE_STRINGS:
return False
elif strict:
acceptable = ', '.join(
"'%s'" % s for s in sorted(TRUE_STRINGS + FALSE_STRINGS))
msg = _("Unrecognized value '%(val)s', acceptable values are:"
" %(acceptable)s") % {'val': subject,
'acceptable': acceptable}
raise ValueError(msg)
else:
return False
def safe_decode(text, incoming=None, errors='strict'):
"""Decodes incoming str using `incoming` if they're not already unicode.
:param incoming: Text's current encoding
:param errors: Errors handling policy. See here for valid
values http://docs.python.org/2/library/codecs.html
:returns: text or a unicode `incoming` encoded
representation of it.
:raises TypeError: If text is not an isntance of str
"""
if not isinstance(text, six.string_types):
raise TypeError("%s can't be decoded" % type(text))
if isinstance(text, six.text_type):
return text
if not incoming:
incoming = (sys.stdin.encoding or
sys.getdefaultencoding())
try:
return text.decode(incoming, errors)
except UnicodeDecodeError:
# Note(flaper87) If we get here, it means that
# sys.stdin.encoding / sys.getdefaultencoding
# didn't return a suitable encoding to decode
# text. This happens mostly when global LANG
# var is not set correctly and there's no
# default encoding. In this case, most likely
# python will use ASCII or ANSI encoders as
# default encodings but they won't be capable
# of decoding non-ASCII characters.
#
# Also, UTF-8 is being used since it's an ASCII
# extension.
return text.decode('utf-8', errors)
def safe_encode(text, incoming=None,
encoding='utf-8', errors='strict'):
"""Encodes incoming str/unicode using `encoding`.
If incoming is not specified, text is expected to be encoded with
current python's default encoding. (`sys.getdefaultencoding`)
:param incoming: Text's current encoding
:param encoding: Expected encoding for text (Default UTF-8)
:param errors: Errors handling policy. See here for valid
values http://docs.python.org/2/library/codecs.html
:returns: text or a bytestring `encoding` encoded
representation of it.
:raises TypeError: If text is not an isntance of str
"""
if not isinstance(text, six.string_types):
raise TypeError("%s can't be encoded" % type(text))
if not incoming:
incoming = (sys.stdin.encoding or
sys.getdefaultencoding())
if isinstance(text, six.text_type):
return text.encode(encoding, errors)
elif text and encoding != incoming:
# Decode text before encoding it with `encoding`
text = safe_decode(text, incoming, errors)
return text.encode(encoding, errors)
return text
def to_bytes(text, default=0):
"""Converts a string into an integer of bytes.
Looks at the last characters of the text to determine
what conversion is needed to turn the input text into a byte number.
Supports "B, K(B), M(B), G(B), and T(B)". (case insensitive)
:param text: String input for bytes size conversion.
:param default: Default return value when text is blank.
"""
match = BYTE_REGEX.search(text)
if match:
magnitude = int(match.group(1))
mult_key_org = match.group(2)
if not mult_key_org:
return magnitude
elif text:
msg = _('Invalid string format: %s') % text
raise TypeError(msg)
else:
return default
mult_key = mult_key_org.lower().replace('b', '', 1)
multiplier = BYTE_MULTIPLIERS.get(mult_key)
if multiplier is None:
msg = _('Unknown byte multiplier: %s') % mult_key_org
raise TypeError(msg)
return magnitude * multiplier
def to_slug(value, incoming=None, errors="strict"):
"""Normalize string.
Convert to lowercase, remove non-word characters, and convert spaces
to hyphens.
Inspired by Django's `slugify` filter.
:param value: Text to slugify
:param incoming: Text's current encoding
:param errors: Errors handling policy. See here for valid
values http://docs.python.org/2/library/codecs.html
:returns: slugified unicode representation of `value`
:raises TypeError: If text is not an instance of str
"""
value = safe_decode(value, incoming, errors)
# NOTE(aababilov): no need to use safe_(encode|decode) here:
# encodings are always "ascii", error handling is always "ignore"
# and types are always known (first: unicode; second: str)
value = unicodedata.normalize("NFKD", value).encode(
"ascii", "ignore").decode("ascii")
value = SLUGIFY_STRIP_RE.sub("", value).strip().lower()
return SLUGIFY_HYPHENATE_RE.sub("-", value)

View File

@ -210,6 +210,16 @@ openstack.compute.v2 =
project_usage_list = openstackclient.compute.v2.usage:ListUsage
security_group_create = openstackclient.compute.v2.secgroup:CreateSecurityGroup
security_group_delete = openstackclient.compute.v2.secgroup:DeleteSecurityGroup
security_group_list = openstackclient.compute.v2.secgroup:ListSecurityGroup
security_group_set = openstackclient.compute.v2.secgroup:SetSecurityGroup
security_group_show = openstackclient.compute.v2.secgroup:ShowSecurityGroup
security_group_rule_create = openstackclient.compute.v2.secgroup:CreateSecurityGroupRule
security_group_rule_delete = openstackclient.compute.v2.secgroup:DeleteSecurityGroupRule
security_group_rule_list = openstackclient.compute.v2.secgroup:ListSecurityGroupRule
server_add_security_group = openstackclient.compute.v2.server:AddServerSecurityGroup
server_add_volume = openstackclient.compute.v2.server:AddServerVolume
server_create = openstackclient.compute.v2.server:CreateServer
server_delete = openstackclient.compute.v2.server:DeleteServer
@ -219,6 +229,7 @@ openstack.compute.v2 =
server_pause = openstackclient.compute.v2.server:PauseServer
server_reboot = openstackclient.compute.v2.server:RebootServer
server_rebuild = openstackclient.compute.v2.server:RebuildServer
server_remove_security_group = openstackclient.compute.v2.server:RemoveServerSecurityGroup
server_remove_volume = openstackclient.compute.v2.server:RemoveServerVolume
server_rescue = openstackclient.compute.v2.server:RescueServer
server_resize = openstackclient.compute.v2.server:ResizeServer