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// Copyright 2015 The Chromium Embedded Framework Authors.
// Portions 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 CEF_LIBCEF_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_H_
#define CEF_LIBCEF_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_H_
#include <map>
#include <memory>
#include "include/cef_extension_handler.h"
#include "include/cef_request_context.h"
#include "base/memory/weak_ptr.h"
#include "base/one_shot_event.h"
#include "extensions/browser/extension_system.h"
namespace base {
class DictionaryValue;
}
namespace content {
class BrowserContext;
}
namespace extensions {
class ExtensionRegistry;
class ProcessManager;
class RendererStartupHelper;
// Used to manage extensions.
class CefExtensionSystem : public ExtensionSystem {
public:
explicit CefExtensionSystem(content::BrowserContext* browser_context);
CefExtensionSystem(const CefExtensionSystem&) = delete;
CefExtensionSystem& operator=(const CefExtensionSystem&) = delete;
~CefExtensionSystem() override;
// Initializes the extension system.
void Init();
// Load an extension. For internal (built-in) extensions set |internal| to
// true and |loader_context| and |handler| to NULL. For external extensions
// set |internal| to false and |loader_context| must be the request context
// that loaded the extension. |handler| is optional for internal extensions
// and, if specified, will receive extension-related callbacks.
void LoadExtension(const base::FilePath& root_directory,
bool internal,
CefRefPtr<CefRequestContext> loader_context,
CefRefPtr<CefExtensionHandler> handler);
void LoadExtension(const std::string& manifest_contents,
const base::FilePath& root_directory,
bool internal,
CefRefPtr<CefRequestContext> loader_context,
CefRefPtr<CefExtensionHandler> handler);
void LoadExtension(base::Value::Dict manifest,
const base::FilePath& root_directory,
bool internal,
CefRefPtr<CefRequestContext> loader_context,
CefRefPtr<CefExtensionHandler> handler);
// Unload the external extension identified by |extension_id|.
bool UnloadExtension(const std::string& extension_id);
// Returns true if an extension matching |extension_id| is loaded.
bool HasExtension(const std::string& extension_id) const;
// Returns the loaded extention matching |extension_id| or NULL if not found.
CefRefPtr<CefExtension> GetExtension(const std::string& extension_id) const;
using ExtensionMap = std::map<std::string, CefRefPtr<CefExtension>>;
// Returns the map of all loaded extensions.
ExtensionMap GetExtensions() const;
// Called when a request context is deleted. Unregisters any external
// extensions that were registered with this context.
void OnRequestContextDeleted(CefRequestContext* context);
// KeyedService implementation:
void Shutdown() override;
// ExtensionSystem implementation:
void InitForRegularProfile(bool extensions_enabled) override;
ExtensionService* extension_service() override;
ManagementPolicy* management_policy() override;
ServiceWorkerManager* service_worker_manager() override;
UserScriptManager* user_script_manager() override;
StateStore* state_store() override;
StateStore* rules_store() override;
StateStore* dynamic_user_scripts_store() override;
scoped_refptr<value_store::ValueStoreFactory> store_factory() override;
InfoMap* info_map() override;
QuotaService* quota_service() override;
AppSorting* app_sorting() override;
void RegisterExtensionWithRequestContexts(
const Extension* extension,
base::OnceClosure callback) override;
void UnregisterExtensionWithRequestContexts(
const std::string& extension_id) override;
const base::OneShotEvent& ready() const override;
bool is_ready() const override;
ContentVerifier* content_verifier() override;
std::unique_ptr<ExtensionSet> GetDependentExtensions(
const Extension* extension) override;
void InstallUpdate(const std::string& extension_id,
const std::string& public_key,
const base::FilePath& temp_dir,
bool install_immediately,
InstallUpdateCallback install_update_callback) override;
void PerformActionBasedOnOmahaAttributes(
const std::string& extension_id,
const base::Value& attributes) override;
bool FinishDelayedInstallationIfReady(const std::string& extension_id,
bool install_immediately) override;
bool initialized() const { return initialized_; }
private:
virtual void InitPrefs();
// Information about a registered component extension.
struct ComponentExtensionInfo {
ComponentExtensionInfo(base::Value::Dict manifest,
const base::FilePath& root_directory,
bool internal);
// The parsed contents of the extensions's manifest file.
base::Value::Dict manifest;
// Directory where the extension is stored.
base::FilePath root_directory;
// True if the extension is an internal (built-in) component.
bool internal;
};
scoped_refptr<const Extension> CreateExtension(
const ComponentExtensionInfo& info,
std::string* utf8_error);
// Loads a registered component extension.
const Extension* LoadExtension(const ComponentExtensionInfo& info,
CefRefPtr<CefRequestContext> loader_context,
CefRefPtr<CefExtensionHandler> handler);
// Unload the specified extension.
void UnloadExtension(const std::string& extension_id,
extensions::UnloadedExtensionReason reason);
// Handles sending notification that |extension| was loaded.
void NotifyExtensionLoaded(const Extension* extension);
// Handles sending notification that |extension| was unloaded.
void NotifyExtensionUnloaded(const Extension* extension,
UnloadedExtensionReason reason);
// Completes extension loading after URLRequestContexts have been updated
// on the IO thread.
void OnExtensionRegisteredWithRequestContexts(
scoped_refptr<const extensions::Extension> extension);
content::BrowserContext* browser_context_; // Not owned.
bool initialized_;
// Data to be accessed on the IO thread. Must outlive process_manager_.
scoped_refptr<InfoMap> info_map_;
std::unique_ptr<ServiceWorkerManager> service_worker_manager_;
std::unique_ptr<QuotaService> quota_service_;
std::unique_ptr<AppSorting> app_sorting_;
std::unique_ptr<StateStore> state_store_;
std::unique_ptr<StateStore> rules_store_;
scoped_refptr<value_store::ValueStoreFactory> store_factory_;
// Signaled when the extension system has completed its startup tasks.
base::OneShotEvent ready_;
// Sets of enabled/disabled/terminated/blacklisted extensions. Not owned.
ExtensionRegistry* registry_;
// The associated RendererStartupHelper. Guaranteed to outlive the
// ExtensionSystem, and thus us.
extensions::RendererStartupHelper* renderer_helper_;
// Map of extension ID to CEF extension object.
ExtensionMap extension_map_;
// Must be the last member.
base::WeakPtrFactory<CefExtensionSystem> weak_ptr_factory_;
};
} // namespace extensions
#endif // CEF_LIBCEF_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_H_
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