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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/extensions/extension_management_internal.h"
#include <stdint.h>
#include <optional>
#include <string_view>
#include "base/json/json_reader.h"
#include "base/values.h"
#include "third_party/icu/fuzzers/fuzzer_utils.h"
using extensions::internal::IndividualSettings;
namespace {
constexpr IndividualSettings::ParsingScope kAllParsingScopes[] = {
IndividualSettings::SCOPE_DEFAULT,
IndividualSettings::SCOPE_UPDATE_URL,
IndividualSettings::SCOPE_INDIVIDUAL,
};
// Performs common initialization that's shared between all runs.
struct Environment {
IcuEnvironment icu_environment;
};
} // namespace
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
static Environment env;
// Avoid out-of-memory failures on excessively large inputs (the exact
// threshold is semi-arbitrary).
if (size > 100 * 1024)
return 0;
std::string_view json(reinterpret_cast<const char*>(data), size);
std::optional<base::Value> value = base::JSONReader::Read(json);
if (!value || !value->is_dict())
return 0;
for (auto parsing_scope : kAllParsingScopes) {
IndividualSettings settings;
settings.Parse(value->GetDict(), parsing_scope);
}
return 0;
}
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