| #!/usr/bin/env python3 |
| # |
| # Copyright 2021 - 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. |
| |
| """File handler that reads target files.""" |
| |
| from abstract_build_file_handler import * |
| from zipfile import ZipFile |
| |
| class TargetFileHandler(AbstractBuildFileHandler): |
| """Reads file's content from target files.""" |
| |
| def __init__(self, build_file): |
| super().__init__(build_file) |
| |
| def get_file_hash(self, file_names, hash_func=None): |
| """See base class.""" |
| hash_dict = dict() |
| with ZipFile(self.build_file) as zip_file: |
| for file_name in file_names: |
| # Convert top directory's name to upper case. |
| idx = file_name[1:].find('/')+1 |
| real_file_name = file_name[1:idx].upper()+file_name[idx:] |
| if real_file_name not in zip_file.namelist(): |
| continue |
| with zip_file.open(real_file_name) as f: |
| if hash_func: |
| hash_dict[file_name] = hash_func(f.read()) |
| else: |
| hash_dict[file_name] = hash(f.read()) |
| return hash_dict |
| |
| def get_system_fingerprint(self): |
| """See base class.""" |
| fingerprint = '' |
| with ZipFile(self.build_file) as zip_file: |
| with zip_file.open('SYSTEM/build.prop') as build_prop: |
| for line in build_prop: |
| line = line.decode('UTF-8') |
| if 'build.fingerprint' not in line: |
| continue |
| fingerprint = line.split('=')[1].strip() |
| break |
| return fingerprint |
