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// Copyright 2014 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 CHROME_BROWSER_EXTENSIONS_ACTIVE_SCRIPT_CONTROLLER_H_
#define CHROME_BROWSER_EXTENSIONS_ACTIVE_SCRIPT_CONTROLLER_H_
#include <map>
#include <set>
#include <string>
#include "base/compiler_specific.h"
#include "base/memory/linked_ptr.h"
#include "chrome/browser/extensions/location_bar_controller.h"
#include "content/public/browser/web_contents_observer.h"
namespace content {
class WebContents;
}
namespace IPC {
class Message;
}
class ExtensionAction;
namespace extensions {
class Extension;
// The provider for ExtensionActions corresponding to scripts which are actively
// running or need permission.
// TODO(rdevlin.cronin): This isn't really a controller, but it has good parity
// with PageAction"Controller".
class ActiveScriptController : public LocationBarController::ActionProvider,
public content::WebContentsObserver {
public:
explicit ActiveScriptController(content::WebContents* web_contents);
virtual ~ActiveScriptController();
// Returns the ActiveScriptController for the given |web_contents|, or NULL
// if one does not exist.
static ActiveScriptController* GetForWebContents(
content::WebContents* web_contents);
// Notify the ActiveScriptController that an extension is running a script.
// TODO(rdevlin.cronin): Soon, this should be ask the user for permission,
// rather than simply notifying them.
void NotifyScriptExecuting(const std::string& extension_id, int page_id);
// Notifies the ActiveScriptController of detected ad injection.
void OnAdInjectionDetected(const std::vector<std::string> ad_injectors);
// LocationBarControllerProvider implementation.
virtual ExtensionAction* GetActionForExtension(
const Extension* extension) OVERRIDE;
virtual LocationBarController::Action OnClicked(
const Extension* extension) OVERRIDE;
virtual void OnNavigated() OVERRIDE;
private:
// content::WebContentsObserver implementation.
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
// Handle the NotifyExtensionScriptExecution message.
void OnNotifyExtensionScriptExecution(const std::string& extension_id,
int page_id);
// Log metrics.
void LogUMA() const;
// Whether or not the ActiveScriptController is enabled (corresponding to the
// kActiveScriptEnforcement switch). If it is not, it acts as an empty shell,
// always allowing scripts to run and never displaying actions.
bool enabled_;
// The extensions that have called ExecuteScript on the current frame.
std::set<std::string> extensions_executing_scripts_;
// The extensions which have injected ads.
std::set<std::string> ad_injectors_;
// Script badges that have been generated for extensions. This is both those
// with actions already declared that are copied and normalised, and actions
// that get generated for extensions that haven't declared anything.
typedef std::map<std::string, linked_ptr<ExtensionAction> > ActiveScriptMap;
ActiveScriptMap active_script_actions_;
DISALLOW_COPY_AND_ASSIGN(ActiveScriptController);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_ACTIVE_SCRIPT_CONTROLLER_H_
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