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// Copyright 2023 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/desks_storage/core/admin_template_service.h"
#include "ash/constants/ash_pref_names.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/logging.h"
#include "base/task/thread_pool.h"
#include "base/time/time.h"
#include "base/values.h"
#include "components/app_constants/constants.h"
#include "components/desks_storage/core/desk_template_conversion.h"
#include "components/policy/policy_constants.h"
#include "components/services/app_service/public/cpp/app_types.h"
namespace desks_storage {
AdminTemplateService::AdminTemplateService(
const base::FilePath& user_data_dir_path,
const AccountId& account_id,
PrefService* pref_service)
: account_id_(account_id), pref_service_(pref_service) {
data_manager_ = std::make_unique<LocalDeskDataManager>(
user_data_dir_path, account_id,
LocalDeskDataManager::StorageLocation::kAppLaunchAutomationDir);
model_obs_.Observe(data_manager_.get());
auto& apps_cache_wrapper = apps::AppRegistryCacheWrapper::Get();
auto* apps_cache = apps_cache_wrapper.GetAppRegistryCache(account_id_);
// If we don't have an apps cache then we observe the wrapper to
// wait for it to be ready.
if (apps_cache) {
app_cache_obs_.Observe(apps_cache);
} else {
app_cache_wrapper_obs_.Observe(&apps_cache_wrapper);
}
pref_change_registrar_.Init(pref_service_);
pref_change_registrar_.Add(
ash::prefs::kAppLaunchAutomation,
base::BindRepeating(&AdminTemplateService::UpdateModelWithPolicy,
weak_ptr_factory_.GetWeakPtr()));
}
AdminTemplateService::~AdminTemplateService() = default;
void AdminTemplateService::UpdateModelWithPolicy() {
if (!IsReady()) {
return;
}
if (pref_service_ == nullptr) {
return;
}
// Query for the desired preference.
const PrefService::Preference* app_launch_automation_preference =
pref_service_->FindPreference(ash::prefs::kAppLaunchAutomation);
if (app_launch_automation_preference == nullptr) {
return;
}
const base::Value* pref_value = app_launch_automation_preference->GetValue();
CHECK(pref_value != nullptr);
if (pref_value->type() != base::Value::Type::LIST) {
return;
}
std::vector<std::unique_ptr<ash::DeskTemplate>> desk_templates =
desks_storage::desk_template_conversion::
ParseAdminTemplatesFromPolicyValue(*pref_value);
// If templates exist that aren't in the current policy we should delete them.
std::set<base::Uuid> desk_uuids_to_delete = data_manager_->GetAllEntryUuids();
for (auto& desk_template : desk_templates) {
// Something went wrong when parsing the template
if (desk_template == nullptr) {
continue;
}
// Something has gone wrong if the field isn't a dict.
if (desk_template->policy_definition().type() != base::Value::Type::DICT) {
continue;
}
// Query model to determine if this entry exists already.
auto get_entry_result =
data_manager_->GetEntryByUUID(desk_template->uuid());
auto entry_status = get_entry_result.status;
// If this template exists in the current policy then don't delete it after
// updating the locally stored policy. Note: this call is a noop if the
// template in question is a new template.
if (entry_status == desks_storage::DeskModel::GetEntryByUuidStatus::kOk ||
entry_status ==
desks_storage::DeskModel::GetEntryByUuidStatus::kNotFound) {
desk_uuids_to_delete.erase(desk_template->uuid());
// There was an error when retrieving the template, do nothing and delete
// the template.
} else {
continue;
}
// If the policy template already exists in the model and has been unchanged
// since the last policy update don't overwrite the data. This will
// preserve the user's window information for that template.
if (entry_status == desks_storage::DeskModel::GetEntryByUuidStatus::kOk &&
get_entry_result.entry->policy_definition() ==
desk_template->policy_definition()) {
continue;
}
// If the policy template exists in an updated form or is new then either
// add it to the model or overwrite the existing definition.
data_manager_->AddOrUpdateEntry(std::move(desk_template),
base::DoNothing());
}
// Remove all templates that aren't in the policy. If the policy is empty
// then this will remove all admin templates from the device.
for (auto uuid : desk_uuids_to_delete) {
data_manager_->DeleteEntry(uuid, base::DoNothing());
}
}
AdminTemplateModel* AdminTemplateService::GetAdminModel() {
return data_manager_.get();
}
DeskModel* AdminTemplateService::GetFullDeskModel() {
return data_manager_.get();
}
bool AdminTemplateService::IsReady() {
CHECK(data_manager_);
return data_manager_->IsReady() && is_cache_ready_;
}
void AdminTemplateService::DeskModelLoaded() {
is_cache_ready_ = WillAppRegistryCacheResolveAppIds();
UpdateModelWithPolicy();
}
void AdminTemplateService::OnAppRegistryCacheWillBeDestroyed(
apps::AppRegistryCache* cache) {
// Disallow updating the model. If this is happening we're likely going
// to be deallocated soon as well.
is_cache_ready_ = false;
app_cache_obs_.Reset();
}
void AdminTemplateService::OnAppTypeInitialized(apps::AppType app_type) {
// If the cache is already ready we don't need to update the model.
if (is_cache_ready_) {
return;
}
is_cache_ready_ = WillAppRegistryCacheResolveAppIds();
// If we're here it means that we have a policy that needs to be parsed but
// until this point the AppRegistryCache wasn't ready.
UpdateModelWithPolicy();
}
void AdminTemplateService::OnAppRegistryCacheAdded(
const AccountId& account_id) {
if (account_id != account_id_ || app_cache_obs_.IsObserving()) {
return;
}
auto* apps_cache =
apps::AppRegistryCacheWrapper::Get().GetAppRegistryCache(account_id);
app_cache_obs_.Observe(apps_cache);
}
bool AdminTemplateService::WillAppRegistryCacheResolveAppIds() {
if (!app_cache_obs_.IsObserving()) {
return false;
}
apps::AppRegistryCache* cache =
apps::AppRegistryCacheWrapper::Get().GetAppRegistryCache(account_id_);
CHECK(cache);
const std::set<apps::AppType>& initialized_types =
cache->InitializedAppTypes();
return initialized_types.contains(apps::AppType::kChromeApp);
}
} // namespace desks_storage
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