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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/ash/components/policy/restriction_schedule/device_restriction_schedule_controller.h"
#include <utility>
#include "ash/constants/ash_switches.h"
#include "base/check_deref.h"
#include "base/functional/callback.h"
#include "base/json/json_string_value_serializer.h"
#include "base/location.h"
#include "base/scoped_observation.h"
#include "base/test/simple_test_clock.h"
#include "base/test/test_future.h"
#include "base/time/clock.h"
#include "base/time/default_clock.h"
#include "base/time/time.h"
#include "base/timer/wall_clock_timer.h"
#include "chrome/browser/ash/login/login_manager_test.h"
#include "chrome/browser/ash/login/test/device_state_mixin.h"
#include "chrome/browser/ash/login/test/js_checker.h"
#include "chrome/browser/ash/login/test/login_manager_mixin.h"
#include "chrome/browser/ash/login/test/oobe_screen_waiter.h"
#include "chrome/browser/ash/login/test/scoped_policy_update.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/browser_process_platform_part.h"
#include "chrome/browser/lifetime/termination_notification.h"
#include "chrome/browser/ui/webui/ash/login/device_disabled_screen_handler.h"
#include "chromeos/ash/components/policy/restriction_schedule/device_restriction_schedule_controller_delegate_impl.h"
#include "chromeos/ash/components/policy/weekly_time/test_support.h"
#include "chromeos/strings/grit/chromeos_strings.h"
#include "components/policy/proto/chrome_device_policy.pb.h"
#include "content/public/test/browser_test.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/message_center/message_center.h"
#include "ui/message_center/message_center_observer.h"
namespace policy {
using ::ash::test::OobeJS;
using ::ash::test::UIPath;
// Empty list.
constexpr const char* kPolicyJsonEmpty = "[]";
constexpr char kDeviceDisabledId[] = "device-disabled";
constexpr UIPath kBannerTitle = {kDeviceDisabledId, "title"};
constexpr UIPath kBannerContents = {kDeviceDisabledId, "subtitle"};
class DeviceRestrictionScheduleControllerTest : public ash::LoginManagerTest {
public:
DeviceRestrictionScheduleControllerTest() {
login_mixin_.AppendRegularUsers(1);
}
void SetUpCommandLine(base::CommandLine* command_line) override {
LoginManagerTest::SetUpCommandLine(command_line);
// Allow failing policy fetch so that we don't shutdown the profile on
// failure.
command_line->AppendSwitch(ash::switches::kAllowFailedPolicyFetchForTest);
}
void UpdatePolicy(const std::string& policy_str) {
std::unique_ptr<ash::ScopedDevicePolicyUpdate> device_policy_update =
device_state_.RequestDevicePolicyUpdate();
device_policy_update->policy_payload()
->mutable_devicerestrictionschedule()
->set_value(policy_str.c_str());
}
void SetRestrictionSchedule(base::TimeDelta from_now,
base::TimeDelta duration) {
base::Value::List policy_list =
weekly_time::BuildList(clock_->Now(), from_now, duration);
std::string policy_str;
ASSERT_TRUE(JSONStringValueSerializer(&policy_str).Serialize(policy_list));
UpdatePolicy(policy_str);
}
DeviceRestrictionScheduleController& controller() {
return CHECK_DEREF(g_browser_process->platform_part()
->device_restriction_schedule_controller());
}
void SetClocks(const base::Clock& clock) {
clock_ = clock;
controller().SetClockForTesting(clock);
}
protected:
ash::DeviceStateMixin device_state_{
&mixin_host_,
ash::DeviceStateMixin::State::OOBE_COMPLETED_CLOUD_ENROLLED};
ash::LoginManagerMixin login_mixin_{&mixin_host_};
raw_ref<const base::Clock> clock_{*base::DefaultClock::GetInstance()};
};
class CaptureNotificationWaiter : public message_center::MessageCenterObserver {
public:
CaptureNotificationWaiter(base::OnceClosure on_notification_added,
const std::string& match_notification_id)
: on_notification_added_(std::move(on_notification_added)),
match_notification_id_(match_notification_id) {
auto* message_center = message_center::MessageCenter::Get();
if (message_center->FindNotificationById(match_notification_id_)) {
std::move(on_notification_added_).Run();
return;
}
observation_.Observe(message_center);
}
// message_center::MessageCenterObserver:
void OnNotificationAdded(const std::string& notification_id) override {
if (notification_id == match_notification_id_) {
std::move(on_notification_added_).Run();
}
}
private:
base::OnceClosure on_notification_added_;
std::string match_notification_id_;
base::ScopedObservation<message_center::MessageCenter,
message_center::MessageCenterObserver>
observation_{this};
};
class FakeWallClockTimer : public base::WallClockTimer {
public:
void Start(const base::Location& posted_from,
base::Time desired_run_time,
base::OnceClosure user_task) override {
user_task_ = std::move(user_task);
}
void FireNow() { std::move(user_task_).Run(); }
private:
base::OnceClosure user_task_;
};
IN_PROC_BROWSER_TEST_F(DeviceRestrictionScheduleControllerTest,
UpcomingLogoutNotificationShows) {
LoginUser(login_mixin_.users()[0].account_id);
// Restriction schedule starts in 20 minutes and lasts for 2 hours.
SetRestrictionSchedule(base::Minutes(20), base::Hours(2));
// Verify that upcoming session end notification shows.
base::test::TestFuture<void> future;
CaptureNotificationWaiter waiter(
future.GetCallback(), DeviceRestrictionScheduleControllerDelegateImpl::
kUpcomingLogoutNotificationId);
ASSERT_TRUE(future.Wait());
}
IN_PROC_BROWSER_TEST_F(DeviceRestrictionScheduleControllerTest,
PRE_PostLogoutNotificationShows) {
LoginUser(login_mixin_.users()[0].account_id);
// Restriction schedule started 20 minutes ago and lasts for 2 hours.
SetRestrictionSchedule(-base::Minutes(20), base::Hours(2));
// Logout happens here (Chrome shuts down), and then we start again on the
// login screen in the next part of the test.
}
IN_PROC_BROWSER_TEST_F(DeviceRestrictionScheduleControllerTest,
PostLogoutNotificationShows) {
// Verify that post-logout notification shows.
base::test::TestFuture<void> future;
CaptureNotificationWaiter waiter(
future.GetCallback(), DeviceRestrictionScheduleControllerDelegateImpl::
kPostLogoutNotificationId);
ASSERT_TRUE(future.Wait());
}
IN_PROC_BROWSER_TEST_F(DeviceRestrictionScheduleControllerTest,
LogoutOnEnteringRestrictedSchedule) {
LoginUser(login_mixin_.users()[0].account_id);
// Restriction schedule started 20 minutes ago and lasts for 2 hours.
SetRestrictionSchedule(-base::Minutes(20), base::Hours(2));
// Verify that logout happens (Chrome shuts down) upon entering the restricted
// schedule.
base::test::TestFuture<void> future;
auto subscription =
browser_shutdown::AddAppTerminatingCallback(future.GetCallback());
ASSERT_TRUE(future.Wait());
}
IN_PROC_BROWSER_TEST_F(DeviceRestrictionScheduleControllerTest,
DeviceDisabledScreenShows) {
// Restriction schedule started 20 minutes ago and lasts for 2 hours.
SetRestrictionSchedule(-base::Minutes(20), base::Hours(2));
ash::OobeScreenWaiter(ash::DeviceDisabledScreenView::kScreenId).Wait();
// Verify that it's really the restriction schedule banner showing, not the
// standard device disabled one.
OobeJS().ExpectElementText(
l10n_util::GetStringUTF8(
IDS_DEVICE_DISABLED_HEADING_RESTRICTION_SCHEDULE),
kBannerTitle);
}
IN_PROC_BROWSER_TEST_F(DeviceRestrictionScheduleControllerTest,
RestrictedScheduleEnds) {
// Restriction schedule started 20 minutes ago and lasts for 2 hours.
SetRestrictionSchedule(-base::Minutes(20), base::Hours(2));
// DeviceDisabledScreen is shown.
ash::OobeScreenWaiter(ash::DeviceDisabledScreenView::kScreenId).Wait();
// Reset the policy, restriction schedule ends.
UpdatePolicy(kPolicyJsonEmpty);
// In order to reset state and stop showing the DeviceDisabledScreen, Chrome
// is restarted back to the login screen here.
base::test::TestFuture<void> future;
auto subscription =
browser_shutdown::AddAppTerminatingCallback(future.GetCallback());
ASSERT_TRUE(future.Wait());
}
IN_PROC_BROWSER_TEST_F(DeviceRestrictionScheduleControllerTest,
RestrictionScheduleMessageChanged) {
auto mock_timer_owned = std::make_unique<FakeWallClockTimer>();
FakeWallClockTimer* mock_timer = mock_timer_owned.get();
controller().SetMessageUpdateTimerForTesting(std::move(mock_timer_owned));
base::SimpleTestClock test_clock;
SetClocks(test_clock);
test_clock.SetNow(base::Time::Now().LocalMidnight());
// Set the restriction schedule to start right now, and to last for 1.5 days.
// Currently the message will contain "Tomorrow", and at next midnight will
// contain "Today".
SetRestrictionSchedule(base::TimeDelta(), base::Hours(36));
ash::OobeScreenWaiter(ash::DeviceDisabledScreenView::kScreenId).Wait();
OobeJS().ExpectElementContainsText(
l10n_util::GetStringUTF8(
IDS_DEVICE_DISABLED_EXPLANATION_RESTRICTION_SCHEDULE_TOMORROW),
kBannerContents);
// Update the time to tomorrow and fire the mock timer (+6 hours to avoid any
// DST issues).
test_clock.Advance(base::Days(1) + base::Hours(6));
mock_timer->FireNow();
OobeJS().ExpectElementContainsText(
l10n_util::GetStringUTF8(
IDS_DEVICE_DISABLED_EXPLANATION_RESTRICTION_SCHEDULE_TODAY),
kBannerContents);
// Reset the clocks back.
SetClocks(*base::DefaultClock::GetInstance());
}
} // namespace policy
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