1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "apex_manifest.h" 18 #include <android-base/file.h> 19 20 #include <memory> 21 #include <string> 22 23 using android::base::Error; 24 using android::base::Result; 25 using ::apex::proto::ApexManifest; 26 27 namespace android { 28 namespace apex { 29 ParseManifest(const std::string & content)30Result<ApexManifest> ParseManifest(const std::string& content) { 31 ApexManifest apex_manifest; 32 33 if (!apex_manifest.ParseFromString(content)) { 34 return Error() << "Can't parse APEX manifest."; 35 } 36 37 // Verifying required fields. 38 // name 39 if (apex_manifest.name().empty()) { 40 return Error() << "Missing required field \"name\" from APEX manifest."; 41 } 42 43 // version 44 if (apex_manifest.version() == 0) { 45 return Error() << "Missing required field \"version\" from APEX manifest."; 46 } 47 return apex_manifest; 48 } 49 GetPackageId(const ApexManifest & apex_manifest)50std::string GetPackageId(const ApexManifest& apex_manifest) { 51 return apex_manifest.name() + "@" + std::to_string(apex_manifest.version()); 52 } 53 ReadManifest(const std::string & path)54Result<ApexManifest> ReadManifest(const std::string& path) { 55 std::string content; 56 if (!android::base::ReadFileToString(path, &content)) { 57 return Error() << "Failed to read manifest file: " << path; 58 } 59 return ParseManifest(content); 60 } 61 62 } // namespace apex 63 } // namespace android 64