electron/shell/renderer/api/context_bridge/object_cache.h
Samuel Attard 2563681583
fix: disable contextBridge object identity caching (#21803)
* fix: disable contextBridge object identity caching

* cleanup

* chore: make non-const references raw pointers

* fix: zero-param constructors are not explicit

* refactor: use base::LinkedList

Co-authored-by: Jeremy Apthorp <nornagon@nornagon.net>
2020-03-03 23:18:22 -08:00

53 lines
1.4 KiB
C++

// Copyright (c) 2020 Slack Technologies, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#ifndef SHELL_RENDERER_API_CONTEXT_BRIDGE_OBJECT_CACHE_H_
#define SHELL_RENDERER_API_CONTEXT_BRIDGE_OBJECT_CACHE_H_
#include <map>
#include <utility>
#include "base/containers/linked_list.h"
#include "content/public/renderer/render_frame.h"
#include "content/public/renderer/render_frame_observer.h"
#include "shell/renderer/electron_render_frame_observer.h"
#include "third_party/blink/public/web/web_local_frame.h"
namespace electron {
namespace api {
namespace context_bridge {
using ObjectCachePair = std::pair<v8::Local<v8::Value>, v8::Local<v8::Value>>;
struct ObjectCachePairNode : public base::LinkNode<ObjectCachePairNode> {
explicit ObjectCachePairNode(ObjectCachePair&& pair);
~ObjectCachePairNode();
ObjectCachePair pair;
};
class ObjectCache final {
public:
ObjectCache();
~ObjectCache();
void CacheProxiedObject(v8::Local<v8::Value> from,
v8::Local<v8::Value> proxy_value);
v8::MaybeLocal<v8::Value> GetCachedProxiedObject(
v8::Local<v8::Value> from) const;
private:
// object_identity ==> [from_value, proxy_value]
std::map<int, base::LinkedList<ObjectCachePairNode>> proxy_map_;
};
} // namespace context_bridge
} // namespace api
} // namespace electron
#endif // SHELL_RENDERER_API_CONTEXT_BRIDGE_OBJECT_CACHE_H_