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/*
* Copyright (C) 2018 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.
*/
#include "apex_manifest.h"
#include <android-base/file.h>
#include <memory>
#include <string>
using android::base::Error;
using android::base::Result;
using ::apex::proto::ApexManifest;
namespace android {
namespace apex {
Result<ApexManifest> ParseManifest(const std::string& content) {
ApexManifest apex_manifest;
if (!apex_manifest.ParseFromString(content)) {
return Error() << "Can't parse APEX manifest.";
}
// Verifying required fields.
// name
if (apex_manifest.name().empty()) {
return Error() << "Missing required field \"name\" from APEX manifest.";
}
// version
if (apex_manifest.version() == 0) {
return Error() << "Missing required field \"version\" from APEX manifest.";
}
return apex_manifest;
}
std::string GetPackageId(const ApexManifest& apex_manifest) {
return apex_manifest.name() + "@" + std::to_string(apex_manifest.version());
}
Result<ApexManifest> ReadManifest(const std::string& path) {
std::string content;
if (!android::base::ReadFileToString(path, &content)) {
return Error() << "Failed to read manifest file: " << path;
}
return ParseManifest(content);
}
} // namespace apex
} // namespace android