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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.
#include "chrome/browser/metrics/k12_age_classification_metrics_provider.h"
#include "base/check_is_test.h"
#include "base/metrics/histogram_functions.h"
#include "chrome/browser/ash/login/demo_mode/demo_session.h"
#include "chrome/browser/ash/policy/core/browser_policy_connector_ash.h"
#include "chrome/browser/ash/policy/core/user_cloud_policy_manager_ash.h"
#include "chrome/browser/ash/profiles/profile_helper.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/browser_process_platform_part.h"
#include "chrome/browser/policy/profile_policy_connector.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profiles_state.h"
#include "chromeos/components/kiosk/kiosk_utils.h"
#include "chromeos/components/mgs/managed_guest_session_utils.h"
#include "components/session_manager/core/session_manager.h"
#include "components/user_manager/user.h"
#include "components/user_manager/user_manager.h"
namespace {
namespace em = enterprise_management;
K12AgeClassificationMetricsProvider::K12AgeClassificationSegment
GetK12UserAgeClassificationSegment(Profile* profile) {
const policy::UserCloudPolicyManagerAsh* const user_cloud_policy_manager =
profile->GetUserCloudPolicyManagerAsh();
if (!user_cloud_policy_manager) {
return K12AgeClassificationMetricsProvider::K12AgeClassificationSegment::
kAgeUnspecified;
}
const em::PolicyData* const policy =
user_cloud_policy_manager->core()->store()->policy();
if (!policy || !policy->has_k12_age_classification_metrics_log_segment()) {
return K12AgeClassificationMetricsProvider::K12AgeClassificationSegment::
kAgeUnspecified;
}
switch (policy->k12_age_classification_metrics_log_segment()) {
case em::PolicyData::AGE_UNDER18:
return K12AgeClassificationMetricsProvider::K12AgeClassificationSegment::
kAgeUnder18;
case em::PolicyData::AGE_EQUAL_OR_OVER18:
return K12AgeClassificationMetricsProvider::K12AgeClassificationSegment::
kAgeEqualOrOver18;
case em::PolicyData::AGE_UNSPECIFIED:
[[fallthrough]];
default:
return K12AgeClassificationMetricsProvider::K12AgeClassificationSegment::
kAgeUnspecified;
}
}
} // namespace
K12AgeClassificationMetricsProvider::K12AgeClassificationMetricsProvider() {
auto* const session_manager = session_manager::SessionManager::Get();
// The `session_manager` is nullptr only for unit tests.
if (session_manager) {
session_manager->AddObserver(this);
} else {
CHECK_IS_TEST();
}
}
K12AgeClassificationMetricsProvider::~K12AgeClassificationMetricsProvider() {
auto* const session_manager = session_manager::SessionManager::Get();
// The `session_manager` is nullptr only for unit tests.
if (session_manager) {
session_manager->RemoveObserver(this);
} else {
CHECK_IS_TEST();
}
}
bool K12AgeClassificationMetricsProvider::ProvideHistograms() {
if (!segment_.has_value()) {
return false;
}
base::UmaHistogramEnumeration(kHistogramName, segment_.value());
return true;
}
void K12AgeClassificationMetricsProvider::OnUserSessionStarted(
bool is_primary_user) {
// Skip non-primary, demo, managed guest, kiosk users.
if (!is_primary_user || profiles::IsDemoSession() ||
chromeos::IsManagedGuestSession() || chromeos::IsKioskSession()) {
return;
}
const user_manager::User* const primary_user =
user_manager::UserManager::Get()->GetPrimaryUser();
CHECK(primary_user);
CHECK(primary_user->is_profile_created());
Profile* const profile =
ash::ProfileHelper::Get()->GetProfileByUser(primary_user);
CHECK(profile);
// Skip unmanaged users.
if (profile->IsOffTheRecord()) {
return;
}
segment_ = GetK12UserAgeClassificationSegment(profile);
}
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