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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/enterprise/reporting/extension_request/extension_request_observer.h"
#include "base/metrics/histogram_functions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/extensions/managed_installation_mode.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_service.h"
#include "components/prefs/scoped_user_pref_update.h"
#include "extensions/common/extension_urls.h"
namespace enterprise_reporting {
namespace {
constexpr char kPendingListUpdateMetricsName[] =
"Enterprise.CloudExtensionRequestUpdated";
enum class PendlingListUpdateMetricEvent {
kAdded = 0,
kRemoved = 1,
kMaxValue = kRemoved
};
} // namespace
ExtensionRequestObserver::ExtensionRequestObserver(Profile* profile)
: profile_(profile) {
extensions::ExtensionManagementFactory::GetForBrowserContext(profile_)
->AddObserver(this);
OnExtensionManagementSettingsChanged();
pref_change_registrar_.Init(profile_->GetPrefs());
pref_change_registrar_.Add(
prefs::kCloudExtensionRequestIds,
base::BindRepeating(&ExtensionRequestObserver::OnPendingListChanged,
weak_factory_.GetWeakPtr()));
}
ExtensionRequestObserver::~ExtensionRequestObserver() {
// If ExtensionManagement is still available during shutdown
extensions::ExtensionManagement* extension_management =
extensions::ExtensionManagementFactory::GetForBrowserContext(profile_);
if (extension_management) {
extension_management->RemoveObserver(this);
}
CloseAllNotifications();
}
bool ExtensionRequestObserver::IsReportEnabled() {
return !report_trigger_.is_null();
}
void ExtensionRequestObserver::EnableReport(ReportTrigger trigger) {
report_trigger_ = trigger;
}
void ExtensionRequestObserver::DisableReport() {
report_trigger_.Reset();
}
void ExtensionRequestObserver::OnExtensionManagementSettingsChanged() {
ShowAllNotifications();
}
void ExtensionRequestObserver::OnPendingListChanged() {
if (report_trigger_)
report_trigger_.Run(profile_.get());
// The pending list is updated when user confirm the notification and requests
// are removed from the list. There is no need to show new notification at
// this point.
if (closing_notification_and_deleting_requests_) {
// Record id removed event.
base::UmaHistogramEnumeration(kPendingListUpdateMetricsName,
PendlingListUpdateMetricEvent::kRemoved);
closing_notification_and_deleting_requests_ = false;
return;
}
// Record new id added event.
base::UmaHistogramEnumeration(kPendingListUpdateMetricsName,
PendlingListUpdateMetricEvent::kAdded);
ShowAllNotifications();
}
void ExtensionRequestObserver::ShowAllNotifications() {
if (!profile_->GetPrefs()->GetBoolean(prefs::kCloudExtensionRequestEnabled)) {
CloseAllNotifications();
return;
}
ShowNotification(ExtensionRequestNotification::kApproved);
ShowNotification(ExtensionRequestNotification::kRejected);
ShowNotification(ExtensionRequestNotification::kForceInstalled);
}
void ExtensionRequestObserver::ShowNotification(
ExtensionRequestNotification::NotifyType type) {
const base::Value::Dict& pending_requests =
profile_->GetPrefs()->GetDict(prefs::kCloudExtensionRequestIds);
ExtensionRequestNotification::ExtensionIds filtered_extension_ids;
extensions::ExtensionManagement* extension_management =
extensions::ExtensionManagementFactory::GetForBrowserContext(profile_);
std::string web_store_update_url =
extension_urls::GetDefaultWebstoreUpdateUrl().spec();
for (auto request : pending_requests) {
const std::string& id = request.first;
extensions::ManagedInstallationMode mode =
extension_management->GetInstallationMode(id, web_store_update_url);
if ((type == ExtensionRequestNotification::kApproved &&
mode == extensions::ManagedInstallationMode::kAllowed) ||
(type == ExtensionRequestNotification::kForceInstalled &&
(mode == extensions::ManagedInstallationMode::kForced ||
mode == extensions::ManagedInstallationMode::kRecommended)) ||
(type == ExtensionRequestNotification::kRejected &&
extension_management->IsInstallationExplicitlyBlocked(id))) {
filtered_extension_ids.push_back(id);
}
}
if (filtered_extension_ids.size() == 0) {
// Any existing notification will be closed.
if (notifications_[type]) {
notifications_[type]->CloseNotification();
notifications_[type].reset();
}
return;
}
// Open a new notification, notification with same type will be replaced if
// exists.
notifications_[type] = std::make_unique<ExtensionRequestNotification>(
profile_, type, filtered_extension_ids);
notifications_[type]->Show(base::BindOnce(
&ExtensionRequestObserver::OnNotificationClosed,
weak_factory_.GetWeakPtr(), std::move(filtered_extension_ids)));
}
void ExtensionRequestObserver::CloseAllNotifications() {
for (auto& notification : notifications_) {
if (notification) {
notification->CloseNotification();
notification.reset();
}
}
}
void ExtensionRequestObserver::OnNotificationClosed(
std::vector<std::string>&& extension_ids,
bool by_user) {
if (!by_user)
return;
RemoveExtensionsFromPendingList(extension_ids);
}
void ExtensionRequestObserver::RemoveExtensionsFromPendingList(
const std::vector<std::string>& extension_ids) {
ScopedDictPrefUpdate pending_requests_update(
Profile::FromBrowserContext(profile_)->GetPrefs(),
prefs::kCloudExtensionRequestIds);
for (auto& id : extension_ids)
pending_requests_update->Remove(id);
closing_notification_and_deleting_requests_ = true;
}
} // namespace enterprise_reporting
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