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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/ash/vpn_delegate_chromeos.h"
#include "ash/shell.h"
#include "ash/system/tray/system_tray_delegate.h"
#include "base/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/thread_task_runner_handle.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/chromeos/profiles/profile_helper.h"
#include "chrome/browser/profiles/profile.h"
#include "components/user_manager/user.h"
#include "components/user_manager/user_manager.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_source.h"
#include "extensions/browser/api/vpn_provider/vpn_service.h"
#include "extensions/browser/api/vpn_provider/vpn_service_factory.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_set.h"
#include "extensions/common/permissions/api_permission.h"
#include "extensions/common/permissions/permissions_data.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/chromeos/strings/grit/ui_chromeos_strings.h"
namespace {
bool IsVPNProvider(const extensions::Extension* extension) {
return extension->permissions_data()->HasAPIPermission(
extensions::APIPermission::kVpnProvider);
}
Profile* GetProfileForPrimaryUser() {
const user_manager::User* const primary_user =
user_manager::UserManager::Get()->GetPrimaryUser();
if (!primary_user)
return nullptr;
return chromeos::ProfileHelper::Get()->GetProfileByUser(primary_user);
}
} // namespace
VPNDelegateChromeOS::VPNDelegateChromeOS() : weak_factory_(this) {
if (user_manager::UserManager::Get()->GetPrimaryUser()) {
// If a user is logged in, start observing the primary user's extension
// registry immediately.
AttachToPrimaryUserExtensionRegistry();
} else {
// If no user is logged in, wait until the first user logs in (thus becoming
// the primary user) and a profile is created for that user.
registrar_.Add(this, chrome::NOTIFICATION_PROFILE_CREATED,
content::NotificationService::AllSources());
}
}
VPNDelegateChromeOS::~VPNDelegateChromeOS() {
if (extension_registry_)
extension_registry_->RemoveObserver(this);
}
bool VPNDelegateChromeOS::HaveThirdPartyVPNProviders() const {
for (const ash::VPNProvider& provider : vpn_providers_) {
if (provider.key.third_party)
return true;
}
return false;
}
const std::vector<ash::VPNProvider>& VPNDelegateChromeOS::GetVPNProviders()
const {
return vpn_providers_;
}
void VPNDelegateChromeOS::ShowAddPage(const ash::VPNProvider::Key& key) {
if (!key.third_party) {
// Show the "add network" dialog for the built-in OpenVPN/L2TP provider.
ash::Shell::GetInstance()->system_tray_delegate()->ShowOtherNetworkDialog(
shill::kTypeVPN);
return;
}
Profile* const profile = GetProfileForPrimaryUser();
if (!profile)
return;
// Request that the third-party VPN provider identified by |key.extension_id|
// show its "add network" dialog.
chromeos::VpnServiceFactory::GetForBrowserContext(profile)
->SendShowAddDialogToExtension(key.extension_id);
}
void VPNDelegateChromeOS::OnExtensionLoaded(
content::BrowserContext* browser_context,
const extensions::Extension* extension) {
if (IsVPNProvider(extension))
UpdateVPNProviders();
}
void VPNDelegateChromeOS::OnExtensionUnloaded(
content::BrowserContext* browser_context,
const extensions::Extension* extension,
extensions::UnloadedExtensionInfo::Reason reason) {
if (IsVPNProvider(extension))
UpdateVPNProviders();
}
void VPNDelegateChromeOS::OnShutdown(extensions::ExtensionRegistry* registry) {
DCHECK(extension_registry_);
extension_registry_->RemoveObserver(this);
extension_registry_ = nullptr;
}
void VPNDelegateChromeOS::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK_EQ(chrome::NOTIFICATION_PROFILE_CREATED, type);
const Profile* const profile = content::Source<Profile>(source).ptr();
if (!chromeos::ProfileHelper::Get()->IsPrimaryProfile(profile)) {
// If the profile that was just created does not belong to the primary user
// (e.g. login profile), ignore it.
return;
}
// The first user logged in (thus becoming the primary user) and a profile was
// created for that user. Stop observing profile creation. Wait one message
// loop cycle to allow other code which observes the
// chrome::NOTIFICATION_PROFILE_CREATED notification to finish initializing
// the profile, then start observing the primary user's extension registry.
registrar_.RemoveAll();
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE,
base::Bind(&VPNDelegateChromeOS::AttachToPrimaryUserExtensionRegistry,
weak_factory_.GetWeakPtr()));
}
void VPNDelegateChromeOS::UpdateVPNProviders() {
DCHECK(extension_registry_);
vpn_providers_.clear();
for (const auto& extension : extension_registry_->enabled_extensions()) {
if (IsVPNProvider(extension.get())) {
vpn_providers_.push_back(ash::VPNProvider(
ash::VPNProvider::Key(extension->id()), extension->name()));
}
}
// Add the built-in OpenVPN/L2TP provider. The ash::VPNProvider::Key()
// constructor generates a key that identifies that built-in provider and has
// no extension ID.
vpn_providers_.push_back(ash::VPNProvider(
ash::VPNProvider::Key(),
l10n_util::GetStringUTF8(IDS_NETWORK_VPN_BUILT_IN_PROVIDER)));
NotifyObservers();
}
void VPNDelegateChromeOS::AttachToPrimaryUserExtensionRegistry() {
DCHECK(!extension_registry_);
extension_registry_ =
extensions::ExtensionRegistry::Get(GetProfileForPrimaryUser());
extension_registry_->AddObserver(this);
UpdateVPNProviders();
}
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