| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <fuzzer/FuzzedDataProvider.h> |
| |
| #include "base/command_line.h" |
| #include "base/json/json_reader.h" |
| #include "base/strings/string_util.h" |
| #include "components/update_client/protocol_handler.h" |
| #include "components/update_client/protocol_serializer.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::map<std::string, std::string> updater_state_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( |
| "{" + GetUtf8String() + "}" /* session_id */, |
| GetUtf8String() /* prod_id */, GetUtf8String() /* browser_version */, |
| GetUtf8String() /* lang */, GetUtf8String() /* channel */, |
| GetUtf8String() /* os_long_name */, |
| GetUtf8String() /* download_preference */, 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 |