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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.
#ifndef EXTENSIONS_RENDERER_RENDERER_EXTENSION_REGISTRY_H_
#define EXTENSIONS_RENDERER_RENDERER_EXTENSION_REGISTRY_H_
#include <stddef.h>
#include <optional>
#include "base/synchronization/lock.h"
#include "extensions/common/extension_id.h"
#include "extensions/common/extension_set.h"
class GURL;
namespace base {
class UnguessableToken;
}
namespace extensions {
// Thread safe container for all loaded extensions in this process,
// essentially the renderer counterpart to ExtensionRegistry.
class RendererExtensionRegistry {
public:
RendererExtensionRegistry();
RendererExtensionRegistry(const RendererExtensionRegistry&) = delete;
RendererExtensionRegistry& operator=(const RendererExtensionRegistry&) =
delete;
~RendererExtensionRegistry();
static RendererExtensionRegistry* Get();
// Returns the ExtensionSet that underlies this RenderExtensionRegistry.
//
// This is not thread-safe and must only be called on the RenderThread, but
// even so, it's not thread safe because other threads may decide to
// modify this. Don't persist a reference to this.
//
// TODO(annekao): remove or make thread-safe and callback-based.
const ExtensionSet* GetMainThreadExtensionSet() const;
// Forwards to the ExtensionSet methods by the same name.
bool Contains(const ExtensionId& id) const;
bool Insert(const scoped_refptr<const Extension>& extension);
bool Remove(const ExtensionId& id);
ExtensionId GetExtensionOrAppIDByURL(const GURL& url) const;
const Extension* GetExtensionOrAppByURL(const GURL& url,
bool include_guid = false) const;
const Extension* GetHostedAppByURL(const GURL& url) const;
const Extension* GetByID(const ExtensionId& id) const;
ExtensionIdSet GetIDs() const;
bool ExtensionBindingsAllowed(const GURL& url) const;
// Activation token-related methods.
//
// Sets the activation token for a Service Worker based `extension`.
void SetWorkerActivationToken(const scoped_refptr<const Extension>& extension,
base::UnguessableToken worker_activation_token);
// Returns the current activation token for worker based extension with
// `extension_id`. Returns std::nullopt otherwise.
std::optional<base::UnguessableToken> GetWorkerActivationToken(
const ExtensionId& extension_id) const;
private:
ExtensionSet extensions_;
// Maps extension id to activation token, for worker based extensions.
std::map<ExtensionId, base::UnguessableToken> worker_activation_tokens_;
mutable base::Lock lock_;
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_RENDERER_EXTENSION_REGISTRY_H_
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