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# 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.
import getpass
import hashlib
import sys
from keystoneauth1 import exceptions as ksa_exceptions
from oslo_utils import timeutils
# NOTE(stevemar): do not remove positional. We need this to stay for a while
# since versions of auth_token require it here.
from positional import positional # noqa
import six
from keystoneclient import exceptions as ksc_exceptions
def find_resource(manager, name_or_id):
"""Helper for the _find_* methods."""
# first try the entity as a string
try:
return manager.get(name_or_id)
except (ksa_exceptions.NotFound): # nosec(cjschaef): try to find
# 'name_or_id' as a six.binary_type instead
pass
# finally try to find entity by name
try:
if isinstance(name_or_id, six.binary_type):
name_or_id = name_or_id.decode('utf-8', 'strict')
return manager.find(name=name_or_id)
except ksa_exceptions.NotFound:
msg = ("No %s with a name or ID of '%s' exists." %
(manager.resource_class.__name__.lower(), name_or_id))
raise ksc_exceptions.CommandError(msg)
except ksc_exceptions.NoUniqueMatch:
msg = ("Multiple %s matches found for '%s', use an ID to be more"
" specific." % (manager.resource_class.__name__.lower(),
name_or_id))
raise ksc_exceptions.CommandError(msg)
def hash_signed_token(signed_text, mode='md5'):
hash_ = hashlib.new(mode)
hash_.update(signed_text)
return hash_.hexdigest()
def prompt_user_password():
"""Prompt user for a password.
Prompt for a password if stdin is a tty.
"""
password = None
# If stdin is a tty, try prompting for the password
if hasattr(sys.stdin, 'isatty') and sys.stdin.isatty():
# Check for Ctl-D
try:
password = getpass.getpass('Password: ')
except EOFError: # nosec(cjschaef): return password, which is None if
# password was not found
pass
return password
def prompt_for_password():
"""Prompt user for password if not provided.
Prompt is used so the password doesn't show up in the
bash history.
"""
if not (hasattr(sys.stdin, 'isatty') and sys.stdin.isatty()):
# nothing to do
return
while True:
try:
new_passwd = getpass.getpass('New Password: ')
rep_passwd = getpass.getpass('Repeat New Password: ')
if new_passwd == rep_passwd:
return new_passwd
except EOFError:
return
_ISO8601_TIME_FORMAT_SUBSECOND = '%Y-%m-%dT%H:%M:%S.%f'
_ISO8601_TIME_FORMAT = '%Y-%m-%dT%H:%M:%S'
def isotime(at=None, subsecond=False):
"""Stringify time in ISO 8601 format."""
# Python provides a similar instance method for datetime.datetime objects
# called isoformat(). The format of the strings generated by isoformat()
# have a couple of problems:
# 1) The strings generated by isotime are used in tokens and other public
# APIs that we can't change without a deprecation period. The strings
# generated by isoformat are not the same format, so we can't just
# change to it.
# 2) The strings generated by isoformat do not include the microseconds if
# the value happens to be 0. This will likely show up as random failures
# as parsers may be written to always expect microseconds, and it will
# parse correctly most of the time.
if not at:
at = timeutils.utcnow()
st = at.strftime(_ISO8601_TIME_FORMAT
if not subsecond
else _ISO8601_TIME_FORMAT_SUBSECOND)
tz = at.tzinfo.tzname(None) if at.tzinfo else 'UTC'
st += ('Z' if tz == 'UTC' else tz)
return st
def strtime(at=None):
at = at or timeutils.utcnow()
return at.strftime(timeutils.PERFECT_TIME_FORMAT)
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