protocol_serializer_fuzzer.cc 2.1 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960
  1. // Copyright 2019 The Chromium Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file.
  4. #include <stddef.h>
  5. #include <stdint.h>
  6. #include <memory>
  7. #include <string>
  8. #include <utility>
  9. #include <vector>
  10. #include <fuzzer/FuzzedDataProvider.h>
  11. #include "base/check.h"
  12. #include "base/command_line.h"
  13. #include "base/containers/flat_map.h"
  14. #include "base/json/json_reader.h"
  15. #include "base/strings/string_util.h"
  16. #include "components/update_client/protocol_handler.h"
  17. #include "components/update_client/protocol_serializer.h"
  18. #include "third_party/abseil-cpp/absl/types/optional.h"
  19. struct Environment {
  20. Environment() { CHECK(base::CommandLine::Init(0, nullptr)); }
  21. };
  22. namespace update_client {
  23. extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
  24. static Environment env;
  25. // Independently, try serializing a Request.
  26. base::flat_map<std::string, std::string> additional_attributes;
  27. std::vector<protocol_request::App> apps;
  28. // Share |data| between |MakeProtocolRequest| args
  29. FuzzedDataProvider data_provider(data, size);
  30. const size_t max_arg_size = size / 7;
  31. auto GetUtf8String = [&data_provider, max_arg_size]() -> std::string {
  32. std::string s = data_provider.ConsumeRandomLengthString(max_arg_size);
  33. return base::IsStringUTF8(s) ? s : "";
  34. };
  35. protocol_request::Request request = MakeProtocolRequest(
  36. false, "{" + GetUtf8String() + "}" /* session_id */,
  37. GetUtf8String() /* prod_id */, GetUtf8String() /* browser_version */,
  38. GetUtf8String() /* channel */, GetUtf8String() /* os_long_name */,
  39. GetUtf8String() /* download_preference */,
  40. absl::nullopt /* domain_joined */, additional_attributes,
  41. {} /*updater_state_attributes*/, std::move(apps));
  42. update_client::ProtocolHandlerFactoryJSON factory;
  43. std::unique_ptr<ProtocolSerializer> serializer = factory.CreateSerializer();
  44. std::string request_serialized = serializer->Serialize(request);
  45. // Any request we serialize should be valid JSON.
  46. CHECK(base::JSONReader::Read(request_serialized));
  47. return 0;
  48. }
  49. } // namespace update_client