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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/browser/api/socket/app_firewall_hole_manager.h"
#include <utility>
#include "base/functional/bind.h"
#include "components/keyed_service/content/browser_context_dependency_manager.h"
#include "content/public/browser/browser_context.h"
#include "extensions/browser/app_window/app_window.h"
#include "extensions/browser/extensions_browser_client.h"
#include "extensions/common/extension_id.h"
using content::BrowserContext;
namespace extensions {
namespace {
class AppFirewallHoleManagerFactory : public BrowserContextKeyedServiceFactory {
public:
static AppFirewallHoleManager* GetForBrowserContext(BrowserContext* context,
bool create) {
return static_cast<AppFirewallHoleManager*>(
GetInstance()->GetServiceForBrowserContext(context, create));
}
static AppFirewallHoleManagerFactory* GetInstance() {
return base::Singleton<AppFirewallHoleManagerFactory>::get();
}
AppFirewallHoleManagerFactory()
: BrowserContextKeyedServiceFactory(
"AppFirewallHoleManager",
BrowserContextDependencyManager::GetInstance()) {
DependsOn(AppWindowRegistry::Factory::GetInstance());
}
~AppFirewallHoleManagerFactory() override = default;
private:
// BrowserContextKeyedServiceFactory:
std::unique_ptr<KeyedService> BuildServiceInstanceForBrowserContext(
BrowserContext* context) const override {
return std::make_unique<AppFirewallHoleManager>(context);
}
BrowserContext* GetBrowserContextToUse(
BrowserContext* context) const override {
return ExtensionsBrowserClient::Get()->GetContextOwnInstance(context);
}
};
bool HasVisibleAppWindows(BrowserContext* context,
const ExtensionId& extension_id) {
AppWindowRegistry* registry = AppWindowRegistry::Get(context);
for (const AppWindow* window : registry->GetAppWindowsForApp(extension_id)) {
if (!window->is_hidden()) {
return true;
}
}
return false;
}
} // namespace
AppFirewallHole::~AppFirewallHole() {
if (manager_) {
manager_->Close(this);
}
}
AppFirewallHole::AppFirewallHole(
const base::WeakPtr<AppFirewallHoleManager>& manager,
chromeos::FirewallHole::PortType type,
uint16_t port,
const ExtensionId& extension_id)
: type_(type),
port_(port),
extension_id_(extension_id),
manager_(manager) {}
void AppFirewallHole::SetVisible(bool app_visible) {
app_visible_ = app_visible;
if (!app_visible_) {
firewall_hole_.reset();
} else if (!firewall_hole_) {
chromeos::FirewallHole::Open(
type_, port_, /*all interfaces=*/"",
base::BindOnce(&AppFirewallHole::OnFirewallHoleOpened,
weak_factory_.GetWeakPtr()));
}
}
void AppFirewallHole::OnFirewallHoleOpened(
std::unique_ptr<chromeos::FirewallHole> firewall_hole) {
if (app_visible_) {
DCHECK(!firewall_hole_);
firewall_hole_ = std::move(firewall_hole);
}
}
AppFirewallHoleManager::AppFirewallHoleManager(BrowserContext* context)
: context_(context) {
observation_.Observe(AppWindowRegistry::Get(context));
}
AppFirewallHoleManager::~AppFirewallHoleManager() = default;
AppFirewallHoleManager* AppFirewallHoleManager::Get(BrowserContext* context) {
return AppFirewallHoleManagerFactory::GetForBrowserContext(context, true);
}
std::unique_ptr<AppFirewallHole> AppFirewallHoleManager::Open(
chromeos::FirewallHole::PortType type,
uint16_t port,
const ExtensionId& extension_id) {
auto hole = base::WrapUnique(new AppFirewallHole(weak_factory_.GetWeakPtr(),
type, port, extension_id));
tracked_holes_.emplace(extension_id, hole.get());
if (HasVisibleAppWindows(context_, extension_id)) {
hole->SetVisible(true);
}
return hole;
}
void AppFirewallHoleManager::Close(AppFirewallHole* hole) {
auto range = tracked_holes_.equal_range(hole->extension_id());
for (auto iter = range.first; iter != range.second; ++iter) {
if (iter->second == hole) {
tracked_holes_.erase(iter);
return;
}
}
NOTREACHED();
}
void AppFirewallHoleManager::OnAppWindowRemoved(AppWindow* app_window) {
OnAppWindowHidden(app_window);
}
void AppFirewallHoleManager::OnAppWindowHidden(AppWindow* app_window) {
DCHECK(context_ == app_window->browser_context());
if (!HasVisibleAppWindows(context_, app_window->extension_id())) {
const auto& range = tracked_holes_.equal_range(app_window->extension_id());
for (auto iter = range.first; iter != range.second; ++iter) {
iter->second->SetVisible(false);
}
}
}
void AppFirewallHoleManager::OnAppWindowShown(AppWindow* app_window,
bool was_hidden) {
const auto& range = tracked_holes_.equal_range(app_window->extension_id());
for (auto iter = range.first; iter != range.second; ++iter) {
iter->second->SetVisible(true);
}
}
// static
void AppFirewallHoleManager::EnsureFactoryBuilt() {
AppFirewallHoleManagerFactory::GetInstance();
}
} // namespace extensions
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