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#!/usr/bin/env python
# Software License Agreement (BSD License)
#
# Copyright (c) 2009, Eucalyptus Systems, Inc.
# All rights reserved.
#
# 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.
#
# Author: Neil Soman neil@eucalyptus.com
import getopt, sys, os
from euca2ools import Euca2ool, FileValidationError, DirValidationError, Util
import tarfile
import gzip
from xml.dom import minidom
from xml.dom.minidom import Document
from M2Crypto import BN, EVP, RSA, util, Rand, m2, X509
from binascii import hexlify, unhexlify
VERSION = "2007-10-10"
BUNDLER_NAME = "euca-tools"
BUNDLER_VERSION = "1.0"
AES = 'AES-128-CBC'
usage_string = """
Unbundles a previously bundled image.
euca-unbundle-image -m, --manifest manifest_path [-k, --privatekey private_key_path]
[-s, --source source_directory] [-d, --destination destination_directory]
[-h, --help] [--version] [--debug]
REQUIRED PARAMETERS
-m, --manifest Path to the manifest file for the bundled image.
OPTIONAL PARAMETERS
-d, --destination Directory to store the image to (defaults to the current directory).
-s, --source Source directory for the bundled image parts (defaults to manifest directory).
"""
version_string = """ euca-unbundle-image version: 1.0 (BSD)"""
IMAGE_IO_CHUNK = 8 * 1024
IMAGE_SPLIT_CHUNK = IMAGE_IO_CHUNK * 1024;
def usage():
print usage_string
Util().usage()
def version():
print version_string
sys.exit()
def main():
try:
euca = Euca2ool('m:k:d:s:',
['manifest=', 'privatekey=', 'destination=', 'source='])
except Exception, e:
print e
usage()
private_key_path=euca.get_environ('EC2_PRIVATE_KEY')
manifest_path = None
batch=False
directory = '.'
src_directory = None
for name, value in euca.opts:
if name in ('-h', '--help'):
usage()
elif name in ('-k', '--privatekey'):
private_key_path = value
elif name in ('-m', '--manifest'):
manifest_path = value
elif name in ('-d', '--directory'):
directory = value
elif name in ('-s', '--source'):
src_directory = value
elif name == '--version':
version()
if manifest_path and private_key_path:
try:
euca.validate_file(manifest_path)
except FileValidationError:
print 'Invalid manifest'
sys.exit(1)
try:
euca.validate_file(private_key_path)
except FileValidationError:
print 'Invalid private key'
sys.exit(1)
if src_directory:
try:
euca.validate_dir(src_directory)
except DirValidationError:
print 'Invalid source directory'
sys.exit(1)
parts, encrypted_key, encrypted_iv = euca.parse_manifest(manifest_path)
if not src_directory:
src_directory = euca.get_file_path(manifest_path)
image = euca.assemble_parts(src_directory, directory, manifest_path, parts)
print "Decrypting image"
decrypted_image = euca.decrypt_image(image, encrypted_key, encrypted_iv, private_key_path)
os.remove(image)
print "Uncompressing image"
unencrypted_image = euca.untarzip_image(directory, decrypted_image)
os.remove(decrypted_image)
else:
if not manifest_path:
print 'manifest path must be specified.'
if not private_key_path:
print 'private key must be specified.'
usage()
if __name__ == "__main__":
main()
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