# # Copyright (C) 2019 The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # import re import os import os.path import shutil import zipfile import apex_utils import common import test_utils class ApexUtilsTest(test_utils.ReleaseToolsTestCase): # echo "foo" | sha256sum SALT = 'b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c' def setUp(self): self.testdata_dir = test_utils.get_testdata_dir() # The default payload signing key. self.payload_key = os.path.join(self.testdata_dir, 'testkey.key') self.apex_with_apk = os.path.join(self.testdata_dir, 'has_apk.apex') common.OPTIONS.search_path = test_utils.get_search_path() @staticmethod def _GetTestPayload(): payload_file = common.MakeTempFile(prefix='apex-', suffix='.img') with open(payload_file, 'wb') as payload_fp: payload_fp.write(os.urandom(8192)) return payload_file @test_utils.SkipIfExternalToolsUnavailable() def test_ParseApexPayloadInfo(self): payload_file = self._GetTestPayload() apex_utils.SignApexPayload( 'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048', self.SALT, 'sha256', no_hashtree=True) payload_info = apex_utils.ParseApexPayloadInfo('avbtool', payload_file) self.assertEqual('SHA256_RSA2048', payload_info['Algorithm']) self.assertEqual(self.SALT, payload_info['Salt']) self.assertEqual('testkey', payload_info['apex.key']) self.assertEqual('sha256', payload_info['Hash Algorithm']) self.assertEqual('0 bytes', payload_info['Tree Size']) @test_utils.SkipIfExternalToolsUnavailable() def test_SignApexPayload(self): payload_file = self._GetTestPayload() apex_utils.SignApexPayload( 'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048', self.SALT, 'sha256', no_hashtree=True) apex_utils.VerifyApexPayload( 'avbtool', payload_file, self.payload_key, True) @test_utils.SkipIfExternalToolsUnavailable() def test_SignApexPayload_withHashtree(self): payload_file = self._GetTestPayload() apex_utils.SignApexPayload( 'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048', self.SALT, 'sha256', no_hashtree=False) apex_utils.VerifyApexPayload('avbtool', payload_file, self.payload_key) payload_info = apex_utils.ParseApexPayloadInfo('avbtool', payload_file) self.assertEqual('4096 bytes', payload_info['Tree Size']) @test_utils.SkipIfExternalToolsUnavailable() def test_SignApexPayload_noHashtree(self): payload_file = self._GetTestPayload() apex_utils.SignApexPayload( 'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048', self.SALT, 'sha256', no_hashtree=True) apex_utils.VerifyApexPayload('avbtool', payload_file, self.payload_key, no_hashtree=True) payload_info = apex_utils.ParseApexPayloadInfo('avbtool', payload_file) self.assertEqual('0 bytes', payload_info['Tree Size']) @test_utils.SkipIfExternalToolsUnavailable() def test_SignApexPayload_withSignerHelper(self): payload_file = self._GetTestPayload() signing_helper = os.path.join(self.testdata_dir, 'signing_helper.sh') os.chmod(signing_helper, 0o700) payload_signer_args = '--signing_helper_with_files {}'.format( signing_helper) apex_utils.SignApexPayload( 'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048', self.SALT, 'sha256', True, payload_signer_args) apex_utils.VerifyApexPayload( 'avbtool', payload_file, self.payload_key, True) @test_utils.SkipIfExternalToolsUnavailable() def test_SignApexPayload_invalidKey(self): self.assertRaises( apex_utils.ApexSigningError, apex_utils.SignApexPayload, 'avbtool', self._GetTestPayload(), os.path.join(self.testdata_dir, 'testkey.x509.pem'), 'testkey', 'SHA256_RSA2048', self.SALT, 'sha256', no_hashtree=True) @test_utils.SkipIfExternalToolsUnavailable() def test_VerifyApexPayload_wrongKey(self): payload_file = self._GetTestPayload() apex_utils.SignApexPayload( 'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048', self.SALT, 'sha256', True) apex_utils.VerifyApexPayload( 'avbtool', payload_file, self.payload_key, True) self.assertRaises( apex_utils.ApexSigningError, apex_utils.VerifyApexPayload, 'avbtool', payload_file, os.path.join(self.testdata_dir, 'testkey_with_passwd.key'), no_hashtree=True) @test_utils.SkipIfExternalToolsUnavailable() def test_ApexApkSigner_noApkPresent(self): apex_path = os.path.join(self.testdata_dir, 'foo.apex') signer = apex_utils.ApexApkSigner(apex_path, None, None) processed_apex = signer.ProcessApexFile({}, self.payload_key) self.assertEqual(apex_path, processed_apex) @test_utils.SkipIfExternalToolsUnavailable() def test_ApexApkSigner_apkKeyNotPresent(self): apex_path = common.MakeTempFile(suffix='.apex') shutil.copy(self.apex_with_apk, apex_path) signer = apex_utils.ApexApkSigner(apex_path, None, None) self.assertRaises(apex_utils.ApexSigningError, signer.ProcessApexFile, {}, self.payload_key) @test_utils.SkipIfExternalToolsUnavailable() def test_ApexApkSigner_signApk(self): apex_path = common.MakeTempFile(suffix='.apex') shutil.copy(self.apex_with_apk, apex_path) signer = apex_utils.ApexApkSigner(apex_path, None, None) apk_keys = {'wifi-service-resources.apk': os.path.join( self.testdata_dir, 'testkey')} self.payload_key = os.path.join(self.testdata_dir, 'testkey_RSA4096.key') apex_file = signer.ProcessApexFile(apk_keys, self.payload_key) package_name_extract_cmd = ['aapt2', 'dump', 'badging', apex_file] output = common.RunAndCheckOutput(package_name_extract_cmd) for line in output.splitlines(): # Sample output from aapt: "package: name='com.google.android.wifi' # versionCode='1' versionName='' platformBuildVersionName='R' # compileSdkVersion='29' compileSdkVersionCodename='R'" match = re.search(r"^package:.* name='([\w|\.]+)'", line, re.IGNORECASE) if match: package_name = match.group(1) self.assertEquals('com.google.android.wifi', package_name) @test_utils.SkipIfExternalToolsUnavailable() def test_ApexApkSigner_noAssetDir(self): no_asset = common.MakeTempFile(suffix='.apex') with zipfile.ZipFile(no_asset, 'w', allowZip64=True) as output_zip: with zipfile.ZipFile(self.apex_with_apk, 'r', allowZip64=True) as input_zip: name_list = input_zip.namelist() for name in name_list: if not name.startswith('assets'): output_zip.writestr(name, input_zip.read(name)) signer = apex_utils.ApexApkSigner(no_asset, None, None) apk_keys = {'wifi-service-resources.apk': os.path.join( self.testdata_dir, 'testkey')} self.payload_key = os.path.join(self.testdata_dir, 'testkey_RSA4096.key') signer.ProcessApexFile(apk_keys, self.payload_key)