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#!/usr/bin/env python
#
# 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.
#
"""Find APK sharedUserId violators.
Usage: find_shareduid_violation [args]
--product_out
PRODUCT_OUT directory
--aapt
Path to aapt or aapt2
--copy_out_system
TARGET_COPY_OUT_SYSTEM
--copy_out_vendor_
TARGET_COPY_OUT_VENDOR
--copy_out_product
TARGET_COPY_OUT_PRODUCT
--copy_out_system_ext
TARGET_COPY_OUT_SYSTEM_EXT
"""
import json
import logging
import os
import re
import subprocess
import sys
from collections import defaultdict
from glob import glob
import common
logger = logging.getLogger(__name__)
OPTIONS = common.OPTIONS
OPTIONS.product_out = os.environ.get("PRODUCT_OUT")
OPTIONS.aapt = "aapt2"
OPTIONS.copy_out_system = "system"
OPTIONS.copy_out_vendor = "vendor"
OPTIONS.copy_out_product = "product"
OPTIONS.copy_out_system_ext = "system_ext"
def execute(cmd):
p = subprocess.Popen(
cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = map(lambda b: b.decode("utf-8"), p.communicate())
return p.returncode == 0, out, err
def make_aapt_cmds(aapt, apk):
return [
aapt + " dump " + apk + " --file AndroidManifest.xml",
aapt + " dump xmltree " + apk + " --file AndroidManifest.xml"
]
def extract_shared_uid(aapt, apk):
for cmd in make_aapt_cmds(aapt, apk):
success, manifest, error_msg = execute(cmd)
if success:
break
else:
logger.error(error_msg)
sys.exit()
pattern = re.compile(r"sharedUserId.*=\"([^\"]*)")
for line in manifest.split("\n"):
match = pattern.search(line)
if match:
return match.group(1)
return None
def FindShareduidViolation(product_out, partition_map, aapt="aapt2"):
"""Find sharedUserId violators in the given partitions.
Args:
product_out: The base directory containing the partition directories.
partition_map: A map of partition name -> directory name.
aapt: The name of the aapt binary. Defaults to aapt2.
Returns:
A string containing a JSON object describing the shared UIDs.
"""
shareduid_app_dict = defaultdict(lambda: defaultdict(list))
for part, location in partition_map.items():
for f in glob(os.path.join(product_out, location, "*", "*", "*.apk")):
apk_file = os.path.basename(f)
shared_uid = extract_shared_uid(aapt, f)
if shared_uid is None:
continue
shareduid_app_dict[shared_uid][part].append(apk_file)
# Only output sharedUserId values that appear in >1 partition.
output = {}
for uid, partitions in shareduid_app_dict.items():
if len(partitions) > 1:
output[uid] = shareduid_app_dict[uid]
return json.dumps(output, indent=2, sort_keys=True)
def main():
common.InitLogging()
def option_handler(o, a):
if o == "--product_out":
OPTIONS.product_out = a
elif o == "--aapt":
OPTIONS.aapt = a
elif o == "--copy_out_system":
OPTIONS.copy_out_system = a
elif o == "--copy_out_vendor":
OPTIONS.copy_out_vendor = a
elif o == "--copy_out_product":
OPTIONS.copy_out_product = a
elif o == "--copy_out_system_ext":
OPTIONS.copy_out_system_ext = a
else:
return False
return True
args = common.ParseOptions(
sys.argv[1:],
__doc__,
extra_long_opts=[
"product_out=",
"aapt=",
"copy_out_system=",
"copy_out_vendor=",
"copy_out_product=",
"copy_out_system_ext=",
],
extra_option_handler=option_handler)
if args:
common.Usage(__doc__)
sys.exit(1)
partition_map = {
"system": OPTIONS.copy_out_system,
"vendor": OPTIONS.copy_out_vendor,
"product": OPTIONS.copy_out_product,
"system_ext": OPTIONS.copy_out_system_ext,
}
print(
FindShareduidViolation(OPTIONS.product_out, partition_map, OPTIONS.aapt))
if __name__ == "__main__":
main()
|
