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// Copyright 2014 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/metrics_service_client.h"
#include <algorithm>
#include <string>
#include "base/command_line.h"
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "build/build_config.h"
#include "components/metrics/metrics_switches.h"
#include "components/metrics/url_constants.h"
namespace metrics {
namespace {
// The minimum time in seconds between consecutive metrics report uploads.
constexpr int kMetricsUploadIntervalSecMinimum = 20;
// If a metrics log upload fails, and the transmission is over this byte count,
// then we will discard the log, and not try to retransmit it. We also don't
// persist the log to the prefs for transmission during the next chrome session
// if this limit is exceeded.
#if BUILDFLAG(IS_CHROMEOS)
// Increase CrOS limit to accommodate SampledProfile data (crbug.com/1210595).
constexpr size_t kMaxOngoingLogSize = 1024 * 1024; // 1 MiB
#else
constexpr size_t kMaxOngoingLogSize = 100 * 1024; // 100 KiB
#endif // BUILDFLAG(IS_CHROMEOS)
// The number of bytes of logs to save of each type (initial/ongoing). This
// ensures that a reasonable amount of history will be stored even if there is a
// long series of very small logs.
constexpr size_t kMinLogQueueSize = 300 * 1024; // 300 KiB
// The minimum number of "initial" logs to save, and hope to send during a
// future Chrome session. Initial logs contain crash stats, and are pretty
// small.
constexpr size_t kMinInitialLogQueueCount = 20;
// The minimum number of ongoing logs to save persistently, and hope to send
// during a this or future sessions. Note that each log may be pretty large, as
// presumably the related "initial" log wasn't sent (probably nothing was, as
// the user was probably off-line). As a result, the log probably kept
// accumulating while the "initial" log was stalled, and couldn't be sent. As a
// result, we don't want to save too many of these mega-logs. A "standard
// shutdown" will create a small log, including just the data that was not yet
// been transmitted, and that is normal (to have exactly one ongoing_log_ at
// startup).
constexpr size_t kMinOngoingLogQueueCount = 8;
} // namespace
MetricsServiceClient::MetricsServiceClient() {}
MetricsServiceClient::~MetricsServiceClient() {}
ukm::UkmService* MetricsServiceClient::GetUkmService() {
return nullptr;
}
bool MetricsServiceClient::ShouldUploadMetricsForUserId(uint64_t user_id) {
return true;
}
GURL MetricsServiceClient::GetMetricsServerUrl() {
#ifndef NDEBUG
// Only allow overriding the server URL through the command line in debug
// builds. This is to prevent, for example, rerouting metrics due to malware.
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
if (command_line->HasSwitch(switches::kUmaServerUrl))
return GURL(command_line->GetSwitchValueASCII(switches::kUmaServerUrl));
#endif // NDEBUG
return GURL(kNewMetricsServerUrl);
}
GURL MetricsServiceClient::GetInsecureMetricsServerUrl() {
#ifndef NDEBUG
// Only allow overriding the server URL through the command line in debug
// builds. This is to prevent, for example, rerouting metrics due to malware.
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
if (command_line->HasSwitch(switches::kUmaInsecureServerUrl)) {
return GURL(
command_line->GetSwitchValueASCII(switches::kUmaInsecureServerUrl));
}
#endif // NDEBUG
return GURL(kNewMetricsServerUrlInsecure);
}
base::TimeDelta MetricsServiceClient::GetUploadInterval() {
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
// If an upload interval is set from the command line, use that value but
// subject it to a minimum threshold to mitigate the risk of DDoS attack.
if (command_line->HasSwitch(metrics::switches::kMetricsUploadIntervalSec)) {
const std::string switch_value = command_line->GetSwitchValueASCII(
metrics::switches::kMetricsUploadIntervalSec);
int custom_upload_interval;
if (base::StringToInt(switch_value, &custom_upload_interval)) {
return base::Seconds(
std::max(custom_upload_interval, kMetricsUploadIntervalSecMinimum));
}
LOG(DFATAL) << "Malformed value for --metrics-upload-interval. "
<< "Expected int, got: " << switch_value;
}
return GetStandardUploadInterval();
}
bool MetricsServiceClient::ShouldStartUpFastForTesting() const {
return false;
}
bool MetricsServiceClient::IsReportingPolicyManaged() {
return false;
}
EnableMetricsDefault MetricsServiceClient::GetMetricsReportingDefaultState() {
return EnableMetricsDefault::DEFAULT_UNKNOWN;
}
bool MetricsServiceClient::IsUMACellularUploadLogicEnabled() {
return false;
}
bool MetricsServiceClient::IsExternalExperimentAllowlistEnabled() {
return true;
}
bool MetricsServiceClient::IsUkmAllowedForAllProfiles() {
return false;
}
bool MetricsServiceClient::IsUkmAllowedWithExtensionsForAllProfiles() {
return false;
}
bool MetricsServiceClient::AreNotificationListenersEnabledOnAllProfiles() {
return false;
}
std::string MetricsServiceClient::GetAppPackageNameIfLoggable() {
return std::string();
}
std::string MetricsServiceClient::GetUploadSigningKey() {
return std::string();
}
bool MetricsServiceClient::ShouldResetClientIdsOnClonedInstall() {
return false;
}
MetricsLogStore::StorageLimits MetricsServiceClient::GetStorageLimits() const {
return {
/*min_initial_log_queue_count=*/kMinInitialLogQueueCount,
/*min_initial_log_queue_size=*/kMinLogQueueSize,
/*min_ongoing_log_queue_count=*/kMinOngoingLogQueueCount,
/*min_ongoing_log_queue_size=*/kMinLogQueueSize,
/*max_ongoing_log_size=*/kMaxOngoingLogSize,
};
}
void MetricsServiceClient::SetUpdateRunningServicesCallback(
const base::RepeatingClosure& callback) {
update_running_services_ = callback;
}
void MetricsServiceClient::UpdateRunningServices() {
if (update_running_services_)
update_running_services_.Run();
}
bool MetricsServiceClient::IsMetricsReportingForceEnabled() const {
return ::metrics::IsMetricsReportingForceEnabled();
}
absl::optional<bool> MetricsServiceClient::GetCurrentUserMetricsConsent()
const {
return absl::nullopt;
}
absl::optional<std::string> MetricsServiceClient::GetCurrentUserId() const {
return absl::nullopt;
}
} // namespace metrics
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