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// Copyright 2020 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/ash/policy/status_collector/managed_session_service.h"
#include "base/logging.h"
#include "base/trace_event/trace_event.h"
#include "chrome/browser/ash/app_mode/kiosk_app_launch_error.h"
#include "chrome/browser/ash/app_mode/kiosk_controller.h"
#include "chrome/browser/ash/login/existing_user_controller.h"
#include "chrome/browser/ash/login/session/user_session_manager.h"
#include "chrome/browser/ash/profiles/profile_helper.h"
#include "chrome/browser/ui/ash/login/login_display_host.h"
#include "components/session_manager/core/session_manager.h"
#include "components/user_manager/user_manager.h"
namespace policy {
namespace {
constexpr base::TimeDelta kMinimumSuspendDuration = base::Minutes(1);
} // namespace
ManagedSessionService::ManagedSessionService(base::Clock* clock)
: clock_(clock), session_manager_(session_manager::SessionManager::Get()) {
DETACH_FROM_SEQUENCE(sequence_checker_);
SetLoginStatus();
if (session_manager_) {
// To alleviate tight coupling in unit tests to DeviceStatusCollector.
session_manager_observation_.Observe(session_manager_.get());
is_session_locked_ = session_manager_->IsScreenLocked();
}
if (user_manager::UserManager::IsInitialized()) {
authenticator_observation_.Observe(ash::UserSessionManager::GetInstance());
user_manager_observation_.Observe(user_manager::UserManager::Get());
}
power_manager_observation_.Observe(chromeos::PowerManagerClient::Get());
}
ManagedSessionService::~ManagedSessionService() {
if (ash::ExistingUserController::current_controller()) {
ash::ExistingUserController::current_controller()
->RemoveLoginStatusConsumer(this);
}
// `ManagedSessionService` is part of the profile and the kiosk (launch)
// controller must be destroyed before the profile, so we can not call
// `RemoveKioskProfileLoadFailedObserver` observer here.
if (ash::SessionTerminationManager::Get()) {
ash::SessionTerminationManager::Get()->RemoveObserver(this);
}
}
void ManagedSessionService::AddObserver(
ManagedSessionService::Observer* observer) {
observers_.AddObserver(observer);
if (is_logged_in_observed_) {
auto* const profile = ash::ProfileHelper::Get()->GetProfileByUser(
user_manager::UserManager::Get()->GetPrimaryUser());
observer->OnLogin(profile);
}
}
void ManagedSessionService::RemoveObserver(
ManagedSessionService::Observer* observer) {
observers_.RemoveObserver(observer);
}
void ManagedSessionService::OnSessionStateChanged() {
TRACE_EVENT0("ui", "ManagedSessionService::OnSessionStateChanged");
bool is_session_locked = session_manager_->IsScreenLocked();
if (is_session_locked_ == is_session_locked) {
return;
}
is_session_locked_ = is_session_locked;
if (is_session_locked_) {
for (auto& observer : observers_) {
observer.OnLocked();
}
} else {
for (auto& observer : observers_) {
observer.OnUnlocked();
}
}
}
void ManagedSessionService::OnUserProfileLoaded(const AccountId& account_id) {
Profile* profile =
ash::ProfileHelper::Get()->GetProfileByAccountId(account_id);
bool is_primary_profile =
ash::ProfileHelper::Get()->IsPrimaryProfile(profile);
if (is_logged_in_observed_ && is_primary_profile) {
return;
} else if (!is_primary_profile) {
profile_observations_.AddObservation(profile);
}
SetLoginStatus();
for (auto& observer : observers_) {
observer.OnLogin(profile);
}
}
void ManagedSessionService::OnUnlockScreenAttempt(
const bool success,
const session_manager::UnlockType unlock_type) {
for (auto& observer : observers_) {
observer.OnUnlockAttempt(success, unlock_type);
}
}
void ManagedSessionService::OnProfileWillBeDestroyed(Profile* profile) {
is_session_locked_ = false;
for (auto& observer : observers_) {
observer.OnLogout(profile);
}
profile_observations_.RemoveObservation(profile);
}
void ManagedSessionService::OnSessionWillBeTerminated() {
if (!user_manager::UserManager::Get() ||
!user_manager::UserManager::Get()->GetPrimaryUser()) {
return;
}
for (auto& observer : observers_) {
observer.OnSessionTerminationStarted(
user_manager::UserManager::Get()->GetPrimaryUser());
}
ash::SessionTerminationManager::Get()->RemoveObserver(this);
}
void ManagedSessionService::OnUserToBeRemoved(const AccountId& account_id) {
for (auto& observer : observers_) {
observer.OnUserToBeRemoved(account_id);
}
}
void ManagedSessionService::OnUserRemoved(
const AccountId& account_id,
user_manager::UserRemovalReason reason) {
for (auto& observer : observers_) {
observer.OnUserRemoved(account_id, reason);
}
}
void ManagedSessionService::SuspendDone(base::TimeDelta sleep_duration) {
if (sleep_duration < kMinimumSuspendDuration) {
return;
}
for (auto& observer : observers_) {
observer.OnResumeActive(clock_->Now() - sleep_duration);
}
}
void ManagedSessionService::OnAuthAttemptStarted() {
if (ash::ExistingUserController::current_controller()) {
ash::ExistingUserController::current_controller()
->RemoveLoginStatusConsumer(this);
ash::ExistingUserController::current_controller()->AddLoginStatusConsumer(
this);
}
ash::KioskController& kiosk_controller = ash::KioskController::Get();
if (kiosk_controller.IsSessionStarting()) {
// Remove observer first in case the auth attempt is because of a retry, and
// the observation was added, if it was not added removing the observer will
// be a no-op.
kiosk_controller.RemoveProfileLoadFailedObserver(this);
kiosk_controller.AddProfileLoadFailedObserver(this);
}
}
void ManagedSessionService::OnAuthFailure(const ash::AuthFailure& error) {
for (auto& observer : observers_) {
observer.OnLoginFailure(error);
}
}
void ManagedSessionService::OnKioskProfileLoadFailed() {
for (auto& observer : observers_) {
observer.OnKioskLoginFailure();
}
}
void ManagedSessionService::SetLoginStatus() {
if (is_logged_in_observed_ || !user_manager::UserManager::Get() ||
!user_manager::UserManager::Get()->IsUserLoggedIn()) {
return;
}
auto* const primary_user = user_manager::UserManager::Get()->GetPrimaryUser();
if (!primary_user || !primary_user->is_profile_created()) {
return;
}
auto* const profile =
ash::ProfileHelper::Get()->GetProfileByUser(primary_user);
if (!profile) {
// Profile is not fully initialized yet.
return;
}
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
is_logged_in_observed_ = true;
profile_observations_.AddObservation(profile);
if (ash::SessionTerminationManager::Get()) {
ash::SessionTerminationManager::Get()->AddObserver(this);
}
}
} // namespace policy
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