chromium/components/metrics/structured/lib/key_data.cc

// 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/metrics/structured/lib/key_data.h"

#include <memory>
#include <utility>

#include "base/check.h"
#include "base/logging.h"
#include "base/notreached.h"
#include "base/rand_util.h"
#include "base/strings/strcat.h"
#include "base/strings/string_number_conversions.h"
#include "base/time/time.h"
#include "base/unguessable_token.h"
#include "components/metrics/structured/lib/histogram_util.h"
#include "components/metrics/structured/lib/key_util.h"
#include "crypto/hmac.h"
#include "crypto/sha2.h"

namespace metrics::structured {
namespace {

std::string HashToHex(const uint64_t hash) { … }

int NowInDays() { … }

}  // namespace

KeyData::KeyData(std::unique_ptr<StorageDelegate> storage_delegate)
    : … { … }
KeyData::~KeyData() = default;

uint64_t KeyData::Id(const uint64_t project_name_hash,
                     base::TimeDelta key_rotation_period) { … }

uint64_t KeyData::HmacMetric(const uint64_t project_name_hash,
                             const uint64_t metric_name_hash,
                             const std::string& value,
                             base::TimeDelta key_rotation_period) { … }

std::optional<base::TimeDelta> KeyData::LastKeyRotation(
    const uint64_t project_name_hash) const { … }

std::optional<int> KeyData::GetKeyAgeInWeeks(uint64_t project_name_hash) const { … }

void KeyData::Purge() { … }

void KeyData::EnsureKeyUpdated(const uint64_t project_name_hash,
                               base::TimeDelta key_rotation_period) { … }

const std::optional<std::string_view> KeyData::GetKeyBytes(
    const uint64_t project_name_hash) const { … }

}  // namespace metrics::structured