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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// ReportingService specialized to report private metrics.
#include "components/metrics/private_metrics/private_metrics_reporting_service.h"
#include <memory>
#include <string_view>
#include "base/metrics/histogram_functions.h"
#include "components/metrics/dwa/dwa_pref_names.h"
#include "components/metrics/dwa/dwa_recorder.h"
#include "components/metrics/metrics_service_client.h"
#include "components/metrics/private_metrics/private_metrics_pref_names.h"
#include "components/metrics/private_metrics/private_metrics_unsent_log_store_metrics.h"
#include "components/metrics/server_urls.h"
#include "components/metrics/unsent_log_store.h"
#include "components/metrics/unsent_log_store_metrics.h"
#include "components/prefs/pref_registry_simple.h"
namespace metrics::private_metrics {
PrivateMetricsReportingService::PrivateMetricsReportingService(
metrics::MetricsServiceClient* client,
PrefService* local_state,
const UnsentLogStore::UnsentLogStoreLimits& storage_limits)
: ReportingService(client,
local_state,
storage_limits.max_log_size_bytes,
/*logs_event_manager=*/nullptr),
unsent_log_store_(
std::make_unique<PrivateMetricsUnsentLogStoreMetrics>(),
local_state,
base::FeatureList::IsEnabled(dwa::kPrivateMetricsFeature)
? prefs::kUnsentLogStoreName
: dwa::prefs::kUnsentLogStoreName,
/*metadata_pref_name=*/nullptr,
storage_limits,
client->GetUploadSigningKey(),
/*logs_event_manager=*/nullptr) {}
PrivateMetricsReportingService::~PrivateMetricsReportingService() = default;
metrics::UnsentLogStore* PrivateMetricsReportingService::unsent_log_store() {
return &unsent_log_store_;
}
// static
void PrivateMetricsReportingService::RegisterPrefs(
PrefRegistrySimple* registry) {
registry->RegisterListPref(prefs::kUnsentLogStoreName);
registry->RegisterListPref(dwa::prefs::kUnsentLogStoreName);
}
metrics::LogStore* PrivateMetricsReportingService::log_store() {
return &unsent_log_store_;
}
GURL PrivateMetricsReportingService::GetUploadUrl() const {
if (base::FeatureList::IsEnabled(dwa::kPrivateMetricsFeature)) {
return metrics::GetPrivateMetricsServerUrl();
}
return metrics::GetDwaServerUrl();
}
GURL PrivateMetricsReportingService::GetInsecureUploadUrl() const {
// Returns an empty string since retrying over HTTP is not enabled for Private
// Metrics.
return GURL();
}
std::string_view PrivateMetricsReportingService::upload_mime_type() const {
return kMetricsMimeType;
}
metrics::MetricsLogUploader::MetricServiceType
PrivateMetricsReportingService::service_type() const {
if (base::FeatureList::IsEnabled(dwa::kPrivateMetricsFeature)) {
return MetricsLogUploader::PRIVATE_METRICS;
}
return MetricsLogUploader::DWA;
}
void PrivateMetricsReportingService::LogCellularConstraint(
bool upload_canceled) {
if (base::FeatureList::IsEnabled(dwa::kPrivateMetricsFeature)) {
base::UmaHistogramBoolean(
"PrivateMetrics.LogUpload.Canceled.CellularConstraint",
upload_canceled);
} else {
base::UmaHistogramBoolean("DWA.LogUpload.Canceled.CellularConstraint",
upload_canceled);
}
}
void PrivateMetricsReportingService::LogResponseOrErrorCode(int response_code,
int error_code,
bool was_https) {
// `was_https` is ignored since all Private Metrics logs are received over
// HTTPS.
if (base::FeatureList::IsEnabled(dwa::kPrivateMetricsFeature)) {
base::UmaHistogramSparse("PrivateMetrics.LogUpload.ResponseOrErrorCode",
response_code >= 0 ? response_code : error_code);
} else {
base::UmaHistogramSparse("DWA.LogUpload.ResponseOrErrorCode",
response_code >= 0 ? response_code : error_code);
}
}
void PrivateMetricsReportingService::LogSuccessLogSize(size_t log_size) {
if (base::FeatureList::IsEnabled(dwa::kPrivateMetricsFeature)) {
base::UmaHistogramCounts10000("PrivateMetrics.LogSize.OnSuccess",
log_size / 1024);
} else {
base::UmaHistogramCounts10000("DWA.LogSize.OnSuccess", log_size / 1024);
}
}
void PrivateMetricsReportingService::LogSuccessMetadata(
const std::string& staged_log) {}
void PrivateMetricsReportingService::LogLargeRejection(size_t log_size) {}
} // namespace metrics::private_metrics
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