| #!/usr/bin/env python |
| # |
| # Copyright 2013 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| """Signs and zipaligns APK. |
| |
| """ |
| |
| import optparse |
| import shutil |
| import sys |
| import tempfile |
| |
| from util import build_utils |
| |
| def RenameInflateAndAddPageAlignment( |
| rezip_apk_jar_path, in_zip_file, out_zip_file): |
| rezip_apk_cmd = [ |
| 'java', |
| '-classpath', |
| rezip_apk_jar_path, |
| 'RezipApk', |
| 'renamealign', |
| in_zip_file, |
| out_zip_file, |
| ] |
| build_utils.CheckOutput(rezip_apk_cmd) |
| |
| |
| def ReorderAndAlignApk(rezip_apk_jar_path, in_zip_file, out_zip_file): |
| rezip_apk_cmd = [ |
| 'java', |
| '-classpath', |
| rezip_apk_jar_path, |
| 'RezipApk', |
| 'reorder', |
| in_zip_file, |
| out_zip_file, |
| ] |
| build_utils.CheckOutput(rezip_apk_cmd) |
| |
| |
| def JarSigner(key_path, key_name, key_passwd, unsigned_path, signed_path): |
| shutil.copy(unsigned_path, signed_path) |
| sign_cmd = [ |
| 'jarsigner', |
| '-sigalg', 'MD5withRSA', |
| '-digestalg', 'SHA1', |
| '-keystore', key_path, |
| '-storepass', key_passwd, |
| signed_path, |
| key_name, |
| ] |
| build_utils.CheckOutput(sign_cmd) |
| |
| |
| def AlignApk(zipalign_path, unaligned_path, final_path): |
| align_cmd = [ |
| zipalign_path, |
| '-f', '4', # 4 bytes |
| unaligned_path, |
| final_path, |
| ] |
| build_utils.CheckOutput(align_cmd) |
| |
| |
| def main(): |
| parser = optparse.OptionParser() |
| build_utils.AddDepfileOption(parser) |
| |
| parser.add_option('--rezip-apk-jar-path', |
| help='Path to the RezipApk jar file.') |
| parser.add_option('--zipalign-path', help='Path to the zipalign tool.') |
| parser.add_option('--unsigned-apk-path', help='Path to input unsigned APK.') |
| parser.add_option('--final-apk-path', |
| help='Path to output signed and aligned APK.') |
| parser.add_option('--key-path', help='Path to keystore for signing.') |
| parser.add_option('--key-passwd', help='Keystore password') |
| parser.add_option('--key-name', help='Keystore name') |
| parser.add_option('--stamp', help='Path to touch on success.') |
| parser.add_option('--load-library-from-zip', type='int', |
| help='If non-zero, build the APK such that the library can be loaded ' + |
| 'directly from the zip file using the crazy linker. The library ' + |
| 'will be renamed, uncompressed and page aligned.') |
| |
| options, _ = parser.parse_args() |
| |
| FinalizeApk(options) |
| |
| if options.depfile: |
| build_utils.WriteDepfile( |
| options.depfile, build_utils.GetPythonDependencies()) |
| |
| if options.stamp: |
| build_utils.Touch(options.stamp) |
| |
| |
| def FinalizeApk(options): |
| with tempfile.NamedTemporaryFile() as signed_apk_path_tmp, \ |
| tempfile.NamedTemporaryFile() as apk_to_sign_tmp: |
| |
| if options.load_library_from_zip: |
| # We alter the name of the library so that the Android Package Manager |
| # does not extract it into a separate file. This must be done before |
| # signing, as the filename is part of the signed manifest. At the same |
| # time we uncompress the library, which is necessary so that it can be |
| # loaded directly from the APK. |
| # Move the library to a page boundary by adding a page alignment file. |
| apk_to_sign = apk_to_sign_tmp.name |
| RenameInflateAndAddPageAlignment( |
| options.rezip_apk_jar_path, options.unsigned_apk_path, apk_to_sign) |
| else: |
| apk_to_sign = options.unsigned_apk_path |
| |
| signed_apk_path = signed_apk_path_tmp.name |
| JarSigner(options.key_path, options.key_name, options.key_passwd, |
| apk_to_sign, signed_apk_path) |
| |
| if options.load_library_from_zip: |
| # Reorder the contents of the APK. This re-establishes the canonical |
| # order which means the library will be back at its page aligned location. |
| # This step also aligns uncompressed items to 4 bytes. |
| ReorderAndAlignApk( |
| options.rezip_apk_jar_path, signed_apk_path, options.final_apk_path) |
| else: |
| # Align uncompressed items to 4 bytes |
| AlignApk(options.zipalign_path, signed_apk_path, options.final_apk_path) |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |