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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.
#ifndef EXTENSIONS_BROWSER_API_SOCKET_APP_FIREWALL_HOLE_MANAGER_H_
#define EXTENSIONS_BROWSER_API_SOCKET_APP_FIREWALL_HOLE_MANAGER_H_
#include <map>
#include "base/scoped_observer.h"
#include "chromeos/network/firewall_hole.h"
#include "extensions/browser/app_window/app_window_registry.h"
namespace content {
class BrowserContext;
}
namespace extensions {
class AppFirewallHoleManager;
// Represents an open port in the system firewall that will be opened and closed
// automatically when the application has a visible window or not. The hole is
// closed on destruction.
class AppFirewallHole {
public:
typedef chromeos::FirewallHole::PortType PortType;
~AppFirewallHole();
PortType type() const { return type_; }
uint16_t port() const { return port_; }
const std::string& extension_id() const { return extension_id_; }
private:
friend class AppFirewallHoleManager;
AppFirewallHole(AppFirewallHoleManager* manager,
PortType type,
uint16_t port,
const std::string& extension_id);
void SetVisible(bool app_visible);
void OnFirewallHoleOpened(scoped_ptr<chromeos::FirewallHole> firewall_hole);
PortType type_;
uint16_t port_;
std::string extension_id_;
bool app_visible_ = false;
// This object is destroyed when the AppFirewallHoleManager that owns it is
// destroyed and so a raw pointer is okay here.
AppFirewallHoleManager* manager_;
// This will hold the FirewallHole object if one is opened.
scoped_ptr<chromeos::FirewallHole> firewall_hole_;
base::WeakPtrFactory<AppFirewallHole> weak_factory_;
};
// Tracks ports in the system firewall opened by an application so that they
// may be automatically opened and closed only when the application has a
// visible window.
class AppFirewallHoleManager : public KeyedService,
public AppWindowRegistry::Observer {
public:
explicit AppFirewallHoleManager(content::BrowserContext* context);
~AppFirewallHoleManager() override;
// Returns the instance for a given browser context, or NULL if none.
static AppFirewallHoleManager* Get(content::BrowserContext* context);
// Takes ownership of the AppFirewallHole and will open a port on the system
// firewall if the associated application is currently visible.
scoped_ptr<AppFirewallHole> Open(AppFirewallHole::PortType type,
uint16_t port,
const std::string& extension_id);
private:
friend class AppFirewallHole;
void Close(AppFirewallHole* hole);
// AppWindowRegistry::Observer
void OnAppWindowRemoved(AppWindow* app_window) override;
void OnAppWindowHidden(AppWindow* app_window) override;
void OnAppWindowShown(AppWindow* app_window, bool was_hidden) override;
content::BrowserContext* context_;
ScopedObserver<AppWindowRegistry, AppWindowRegistry::Observer> observer_;
std::multimap<std::string, AppFirewallHole*> tracked_holes_;
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_API_SOCKET_APP_FIREWALL_HOLE_MANAGER_H_
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