1 #!/usr/bin/env python 2 # 3 # Copyright 2014 The Chromium Authors. All rights reserved. 4 # Use of this source code is governed by a BSD-style license that can be 5 # found in the LICENSE file. 6 7 """Generates the obfuscated jar and test jar for an apk. 8 9 If proguard is not enabled or 'Release' is not in the configuration name, 10 obfuscation will be a no-op. 11 """ 12 13 import fnmatch 14 import optparse 15 import os 16 import sys 17 import zipfile 18 19 from util import build_utils 20 21 def ParseArgs(argv): 22 parser = optparse.OptionParser() 23 parser.add_option('--android-sdk', help='path to the Android SDK folder') 24 parser.add_option('--android-sdk-tools', 25 help='path to the Android SDK build tools folder') 26 parser.add_option('--android-sdk-jar', 27 help='path to Android SDK\'s android.jar') 28 parser.add_option('--proguard-jar-path', 29 help='Path to proguard.jar in the sdk') 30 parser.add_option('--input-jars-paths', 31 help='Path to jars to include in obfuscated jar') 32 33 parser.add_option('--proguard-configs', 34 help='Paths to proguard config files') 35 36 parser.add_option('--configuration-name', 37 help='Gyp configuration name (i.e. Debug, Release)') 38 parser.add_option('--proguard-enabled', action='store_true', 39 help='Set if proguard is enabled for this target.') 40 41 parser.add_option('--obfuscated-jar-path', 42 help='Output path for obfuscated jar.') 43 44 parser.add_option('--testapp', action='store_true', 45 help='Set this if building an instrumentation test apk') 46 parser.add_option('--tested-apk-obfuscated-jar-path', 47 help='Path to obfusctated jar of the tested apk') 48 parser.add_option('--test-jar-path', 49 help='Output path for jar containing all the test apk\'s ' 50 'code.') 51 52 parser.add_option('--stamp', help='File to touch on success') 53 54 (options, args) = parser.parse_args(argv) 55 56 if args: 57 parser.error('No positional arguments should be given. ' + str(args)) 58 59 # Check that required options have been provided. 60 required_options = ( 61 'android_sdk', 62 'android_sdk_tools', 63 'android_sdk_jar', 64 'proguard_jar_path', 65 'input_jars_paths', 66 'configuration_name', 67 'obfuscated_jar_path', 68 ) 69 70 if options.testapp: 71 required_options += ( 72 'test_jar_path', 73 ) 74 75 build_utils.CheckOptions(options, parser, required=required_options) 76 77 return options, args 78 79 80 def main(argv): 81 options, _ = ParseArgs(argv) 82 83 library_classpath = [options.android_sdk_jar] 84 input_jars = build_utils.ParseGypList(options.input_jars_paths) 85 86 dependency_class_filters = [ 87 '*R.class', '*R$*.class', '*Manifest.class', '*BuildConfig.class'] 88 89 def DependencyClassFilter(name): 90 for name_filter in dependency_class_filters: 91 if fnmatch.fnmatch(name, name_filter): 92 return False 93 return True 94 95 if options.testapp: 96 with zipfile.ZipFile(options.test_jar_path, 'w') as test_jar: 97 for jar in input_jars: 98 with zipfile.ZipFile(jar, 'r') as jar_zip: 99 for name in filter(DependencyClassFilter, jar_zip.namelist()): 100 with jar_zip.open(name) as zip_entry: 101 test_jar.writestr(name, zip_entry.read()) 102 103 if options.configuration_name == 'Release' and options.proguard_enabled: 104 proguard_cmd = [ 105 'java', '-jar', options.proguard_jar_path, 106 '-forceprocessing', 107 '-libraryjars', ':'.join(library_classpath), 108 '-dump', options.obfuscated_jar_path + '.dump', 109 '-printseeds', options.obfuscated_jar_path + '.seeds', 110 '-printusage', options.obfuscated_jar_path + '.usage', 111 '-printmapping', options.obfuscated_jar_path + '.mapping', 112 ] 113 114 exclude_paths = [] 115 configs = build_utils.ParseGypList(options.proguard_configs) 116 if (options.tested_apk_obfuscated_jar_path and 117 options.tested_apk_obfuscated_jar_path != '/'): 118 # configs should only contain the process_resources.py generated config. 119 assert len(configs) == 1, ( 120 'test apks should not have custom proguard configs: ' + str(configs)) 121 tested_jar_info = build_utils.ReadJson( 122 options.tested_apk_obfuscated_jar_path + '.info') 123 exclude_paths = tested_jar_info['inputs'] 124 configs = tested_jar_info['configs'] 125 proguard_cmd += [ 126 '-dontobfuscate', 127 '-dontoptimize', 128 '-dontskipnonpubliclibraryclassmembers', 129 '-libraryjars', options.tested_apk_obfuscated_jar_path, 130 '-applymapping', options.tested_apk_obfuscated_jar_path + '.mapping', 131 ] 132 133 proguard_injars = [p for p in input_jars if p not in exclude_paths] 134 proguard_cmd += ['-injars', ':'.join(proguard_injars)] 135 136 for config_file in configs: 137 proguard_cmd += ['-include', config_file] 138 139 # The output jar must be specified after inputs. 140 proguard_cmd += ['-outjars', options.obfuscated_jar_path] 141 142 build_utils.CheckOutput(proguard_cmd) 143 144 this_info = { 145 'inputs': proguard_injars, 146 'configs': configs 147 } 148 149 build_utils.WriteJson( 150 this_info, options.obfuscated_jar_path + '.info') 151 else: 152 output_files = [ 153 options.obfuscated_jar_path, 154 options.obfuscated_jar_path + '.info', 155 options.obfuscated_jar_path + '.dump', 156 options.obfuscated_jar_path + '.seeds', 157 options.obfuscated_jar_path + '.usage', 158 options.obfuscated_jar_path + '.mapping'] 159 for f in output_files: 160 if os.path.exists(f): 161 os.remove(f) 162 build_utils.Touch(f) 163 164 if options.stamp: 165 build_utils.Touch(options.stamp) 166 167 if __name__ == '__main__': 168 sys.exit(main(sys.argv[1:])) 169
