def extract_data(self, app: Bundle, result_path: str) -> bool:
# Metadata is stored in a dictionary, which is later serialised to the disk.
dependencies_metadata = dict()
if not isinstance(app, Application):
self.log_error("Supplied app {} is not an application".format(
app.filepath))
return False
app_base = os.path.realpath(app.filepath) + "/"
executable = app.executable()
app_dependencies = executable.application_libraries(
) if executable else []
for dependency in app_dependencies:
dependency_bundle = Bundle.from_binary(dependency)
# Relative path component from the underlying app to the dependency.
dependency_rel = fs.path_remove_prefix(dependency, app_base)
dependency_infos = None
if dependency_bundle:
# Use Info.plist from bundle
dependency_infos = dependency_bundle.info_dictionary()
else:
# Try to instead use embedded information
if lief.is_macho(dependency):
dependency_infos = common.extract_embedded_info(
lief_extensions.macho_parse_quick(dependency))
if dependency_infos:
# Record entry along with further information
dependencies_metadata[
dependency_rel] = DependenciesExtractor._extract_dependency_infos(
dependency_infos)
else:
# Just record the path to the dependency
dependencies_metadata[dependency_rel] = {}
# Store the information to the filesystem
with open(os.path.join(result_path, "dependencies.json"),
"w") as outfile:
json.dump(dependencies_metadata, outfile, indent=4)
return True
def test_bundle_from_binary(self):
# For single-file utility, this function should return None, because the file is not
# part of any bundle
self.assertIsNone(Bundle.from_binary("/bin/ls"))
self.assertIsNone(Bundle.from_binary("/bin/ln"))
# For binaries that are part of a bundle but not the main executable in such a bundle,
# the function is also supposed to return None
# Note: iTunes is used here, because it comes pre-installed on macOS
# and it has the most complicated dependencies of any installed app, thus
# it can be used for many different purposes
self.assertIsNone(Bundle.from_binary("/Applications/iTunes.app/Contents/MacOS/iTunesASUHelper"))
# For non-existent binaries, the function should throw a ValueError
with self.assertRaises(ValueError):
# This binary surely does not exist
Bundle.from_binary("/bin/useful_test03837246")
# If the main executable is supplied, the corresponding bundle should be found
self.assertEqual(
Bundle.from_binary(
"/Applications/iTunes.app/Contents/MacOS/iTunes"
).filepath,
"/Applications/iTunes.app")
# This should also work for other types of bundles
self.assertEqual(
Bundle.from_binary(
"/Applications/iTunes.app/Contents/Frameworks/iPodUpdater.framework/Versions/A/iPodUpdater"
).filepath,
"/Applications/iTunes.app/Contents/Frameworks/iPodUpdater.framework"
)
self.assertEqual(
Bundle.from_binary(
"/Applications/iTunes.app/Contents/PlugIns/iTunesStorageExtension.appex/Contents/MacOS/iTunesStorageExtension"
).filepath,
"/Applications/iTunes.app/Contents/PlugIns/iTunesStorageExtension.appex"
)