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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.
"""conv_apex_manifest converts apex_manifest.json in two ways
To remove keys which are unknown to Q
conv_apex_manifest strip apex_manifest.json (-o apex_manifest_stripped.json)
To convert into .pb
conv_apex_manifest proto apex_manifest.json -o apex_manifest.pb
To change property value
conv_apex_manifest setprop version 137 apex_manifest.pb
"""
import argparse
import collections
import json
import apex_manifest_pb2
from google.protobuf.descriptor import FieldDescriptor
from google.protobuf.json_format import ParseDict
from google.protobuf.json_format import ParseError
from google.protobuf.text_format import MessageToString
Q_compat_keys = ["name", "version", "preInstallHook", "postInstallHook", "versionName"]
def Strip(args):
with open(args.input) as f:
obj = json.load(f, object_pairs_hook=collections.OrderedDict)
# remove unknown keys
for key in list(obj):
if key not in Q_compat_keys:
del obj[key]
if args.out:
with open(args.out, "w") as f:
json.dump(obj, f, indent=2)
else:
print(json.dumps(obj, indent=2))
def Proto(args):
with open(args.input) as f:
obj = json.load(f, object_pairs_hook=collections.OrderedDict)
pb = ParseDict(obj, apex_manifest_pb2.ApexManifest())
with open(args.out, "wb") as f:
f.write(pb.SerializeToString())
def SetProp(args):
with open(args.input, "rb") as f:
pb = apex_manifest_pb2.ApexManifest()
pb.ParseFromString(f.read())
if getattr(type(pb), args.property).DESCRIPTOR.label == FieldDescriptor.LABEL_REPEATED:
getattr(pb, args.property)[:] = args.value.split(",")
else:
setattr(pb, args.property, type(getattr(pb, args.property))(args.value))
with open(args.input, "wb") as f:
f.write(pb.SerializeToString())
def Print(args):
with open(args.input, "rb") as f:
pb = apex_manifest_pb2.ApexManifest()
pb.ParseFromString(f.read())
print(MessageToString(pb))
def main():
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers()
parser_strip = subparsers.add_parser('strip', help='remove unknown keys from APEX manifest (JSON)')
parser_strip.add_argument('input', type=str, help='APEX manifest file (JSON)')
parser_strip.add_argument('-o', '--out', type=str, help='Output filename. If omitted, prints to stdout')
parser_strip.set_defaults(func=Strip)
parser_proto = subparsers.add_parser('proto', help='write protobuf binary format')
parser_proto.add_argument('input', type=str, help='APEX manifest file (JSON)')
parser_proto.add_argument('-o', '--out', required=True, type=str, help='Directory to extract content of APEX to')
parser_proto.set_defaults(func=Proto)
parser_proto = subparsers.add_parser('setprop', help='change proprety value')
parser_proto.add_argument('property', type=str, help='name of property')
parser_proto.add_argument('value', type=str, help='new value of property')
parser_proto.add_argument('input', type=str, help='APEX manifest file (PB)')
parser_proto.set_defaults(func=SetProp)
parser_proto = subparsers.add_parser('print', help='print APEX manifest')
parser_proto.add_argument('input', type=str, help='APEX manifest file (PB)')
parser_proto.set_defaults(func=Print)
args = parser.parse_args()
args.func(args)
if __name__ == '__main__':
main()