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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/update_client/protocol_serializer.h"
#include <fuzzer/FuzzedDataProvider.h>
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "base/check.h"
#include "base/command_line.h"
#include "base/containers/flat_map.h"
#include "base/json/json_reader.h"
#include "base/strings/string_util.h"
#include "components/update_client/protocol_handler.h"
struct Environment {
Environment() { CHECK(base::CommandLine::Init(0, nullptr)); }
};
namespace update_client {
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
static Environment env;
// Independently, try serializing a Request.
base::flat_map<std::string, std::string> additional_attributes;
std::vector<protocol_request::App> apps;
// Share |data| between |MakeProtocolRequest| args
FuzzedDataProvider data_provider(data, size);
const size_t max_arg_size = size / 7;
auto GetUtf8String = [&data_provider, max_arg_size]() -> std::string {
std::string s = data_provider.ConsumeRandomLengthString(max_arg_size);
return base::IsStringUTF8(s) ? s : "";
};
protocol_request::Request request = MakeProtocolRequest(
false, "{" + GetUtf8String() + "}" /* session_id */,
GetUtf8String() /* prod_id */, GetUtf8String() /* browser_version */,
GetUtf8String() /* channel */, GetUtf8String() /* os_long_name */,
GetUtf8String() /* download_preference */,
std::nullopt /* domain_joined */, additional_attributes,
{} /*updater_state_attributes*/, std::move(apps));
update_client::ProtocolHandlerFactoryJSON factory;
std::unique_ptr<ProtocolSerializer> serializer = factory.CreateSerializer();
std::string request_serialized = serializer->Serialize(request);
// Any request we serialize should be valid JSON.
CHECK(base::JSONReader::Read(request_serialized));
return 0;
}
} // namespace update_client
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