120 lines
3.2 KiB
Python
Executable file
120 lines
3.2 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Copyright (C) 2019 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Signs a standalone APEX file.
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Usage: sign_apex [flags] input_apex_file output_apex_file
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--avbtool <avbtool>
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Optional flag that specifies the AVB tool to use. Defaults to `avbtool`.
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--container_key <key>
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Mandatory flag that specifies the container signing key.
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--payload_key <key>
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Mandatory flag that specifies the payload signing key.
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--payload_extra_args <args>
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Optional flag that specifies any extra args to be passed to payload signer
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(e.g. --payload_extra_args="--signing_helper_with_files /path/to/helper").
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"""
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import logging
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import shutil
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import sys
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import apex_utils
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import common
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logger = logging.getLogger(__name__)
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def SignApexFile(avbtool, apex_file, payload_key, container_key,
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no_hashtree, signing_args=None):
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"""Signs the given apex file."""
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with open(apex_file, 'rb') as input_fp:
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apex_data = input_fp.read()
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return apex_utils.SignApex(
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avbtool,
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apex_data,
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payload_key=payload_key,
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container_key=container_key,
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container_pw=None,
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codename_to_api_level_map=None,
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no_hashtree=no_hashtree,
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signing_args=signing_args)
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def main(argv):
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options = {}
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def option_handler(o, a):
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if o == '--avbtool':
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options['avbtool'] = a
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elif o == '--container_key':
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# Strip the suffix if any, as common.SignFile expects no suffix.
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DEFAULT_CONTAINER_KEY_SUFFIX = '.x509.pem'
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if a.endswith(DEFAULT_CONTAINER_KEY_SUFFIX):
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a = a[:-len(DEFAULT_CONTAINER_KEY_SUFFIX)]
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options['container_key'] = a
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elif o == '--payload_key':
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options['payload_key'] = a
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elif o == '--payload_extra_args':
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options['payload_extra_args'] = a
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else:
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return False
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return True
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args = common.ParseOptions(
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argv, __doc__,
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extra_opts='',
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extra_long_opts=[
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'avbtool=',
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'container_key=',
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'payload_extra_args=',
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'payload_key=',
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],
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extra_option_handler=option_handler)
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if (len(args) != 2 or 'container_key' not in options or
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'payload_key' not in options):
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common.Usage(__doc__)
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sys.exit(1)
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common.InitLogging()
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signed_apex = SignApexFile(
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options.get('avbtool', 'avbtool'),
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args[0],
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options['payload_key'],
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options['container_key'],
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no_hashtree=False,
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signing_args=options.get('payload_extra_args'))
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shutil.copyfile(signed_apex, args[1])
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logger.info("done.")
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if __name__ == '__main__':
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try:
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main(sys.argv[1:])
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except common.ExternalError:
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logger.exception("\n ERROR:\n")
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sys.exit(1)
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finally:
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common.Cleanup()
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