# Copyright 2015 Eucalyptus Systems, Inc.
#
# Redistribution and use of this software in source and binary forms,
# with or without modification, are permitted provided that the following
# conditions are met:
#
# Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import os
import pipes
import sys
from requestbuilder import Arg, MutuallyExclusiveArgList
from requestbuilder.command import BaseCommand
from euca2ools.commands import Euca2ools
class ReleaseRole(BaseCommand):
DESCRIPTION = '''\
Release IAM role credentials
The %(prog)s utility removes the credentials created by
euare-assumerole(1) by outputting shellcode that deletes
the environment variables it creates. Use it inside an eval
command to make this process seamless:
$ eval `euare-releaserole`
Note that if the credentials used to initially assume the role
were supplied in the form of environment variables those
environment variables will need to be reset:
$ source eucarc'''
SUITE = Euca2ools
ARGS = [MutuallyExclusiveArgList(
Arg('-c', dest='csh_output', route_to=None,
action='store_true', help='''generate C-shell commands on
stdout (default if SHELL looks like a csh-style shell'''),
Arg('-s', dest='sh_output', route_to=None,
action='store_true', help='''generate Bourne shell
commands on stdout (default if SHELL does not look
like a csh-style shell'''))]
def print_result(self, _):
for var in (
'AWS_ACCESS_KEY_ID', 'AWS_ACCESS_KEY', 'EC2_ACCESS_KEY',
'AWS_SECRET_ACCESS_KEY', 'AWS_SECRET_KEY',
'EC2_SECRET_KEY', 'AWS_SESSION_TOKEN',
'AWS_SECURITY_TOKEN', 'AWS_CREDENTIAL_EXPIRATION',
'EC2_USER_ID', 'AWS_CREDENTIAL_FILE'):
if (self.args.get('csh_output') or
(not self.args.get('sh_output') and
os.getenv('SHELL', '').endswith('csh'))):
fmt = 'unsetenv {0};'
else:
fmt = 'unset {0};'
print fmt.format(var)
print
print '# If you can read this, rerun this program with eval:'
print '# eval `{0}`'.format(
' '.join(pipes.quote(arg) for arg in sys.argv))