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// Copyright 2014 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_SAFE_BUILTINS_H_
#define EXTENSIONS_RENDERER_SAFE_BUILTINS_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "v8/include/v8-forward.h"
namespace extensions {
class ScriptContext;
// A collection of safe builtin objects, in that they won't be tainted by
// extensions overriding methods on them.
class SafeBuiltins {
public:
// Creates the v8::Extension which manages SafeBuiltins instances.
static std::unique_ptr<v8::Extension> CreateV8Extension();
explicit SafeBuiltins(ScriptContext* context);
SafeBuiltins(const SafeBuiltins&) = delete;
SafeBuiltins& operator=(const SafeBuiltins&) = delete;
~SafeBuiltins();
// Each method returns an object with methods taken from their respective
// builtin object's prototype, adapted to automatically call() themselves.
//
// Examples:
// Array.prototype.forEach.call(...) becomes Array.forEach(...)
// Object.prototype.toString.call(...) becomes Object.toString(...)
// Object.keys.call(...) becomes Object.keys(...)
v8::Local<v8::Object> GetArray() const;
v8::Local<v8::Object> GetFunction() const;
v8::Local<v8::Object> GetJSON() const;
// NOTE(kalman): VS2010 won't compile "GetObject", it mysteriously renames it
// to "GetObjectW" - hence GetObjekt. Sorry.
v8::Local<v8::Object> GetObjekt() const;
v8::Local<v8::Object> GetRegExp() const;
v8::Local<v8::Object> GetString() const;
v8::Local<v8::Object> GetError() const;
v8::Local<v8::Object> GetPromise() const;
private:
raw_ptr<ScriptContext, ExperimentalRenderer> context_;
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_SAFE_BUILTINS_H_
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