1#!/usr/bin/env python 2# 3# Copyright (C) 2018 The Android Open Source Project 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17import json 18import apex_manifest_pb2 19from google.protobuf.json_format import Parse 20from google.protobuf.json_format import ParseError 21 22class ApexManifestError(Exception): 23 def __init__(self, errmessage): 24 # Apex Manifest parse error (extra fields) or if required fields not present 25 self.errmessage = errmessage 26 27def ValidateApexManifest(manifest_raw): 28 try: 29 manifest_json = json.loads(manifest_raw) 30 manifest_pb = Parse(json.dumps(manifest_json), apex_manifest_pb2.ApexManifest()) 31 except (ParseError, ValueError) as err: 32 raise ApexManifestError(err) 33 # Checking required fields 34 if manifest_pb.name == "": 35 raise ApexManifestError("'name' field is required.") 36 if manifest_pb.version == 0: 37 raise ApexManifestError("'version' field is required.") 38 return manifest_pb 39