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// Copyright 2013 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 COMPONENTS_SAFE_JSON_SAFE_JSON_PARSER_H_
#define COMPONENTS_SAFE_JSON_SAFE_JSON_PARSER_H_
#include <string>
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
namespace base {
class Value;
}
namespace safe_json {
// SafeJsonParser parses a given JSON safely via a platform-dependent mechanism
// (like parsing it in a utility process or in a memory-safe environment).
// Internally, an instance of this class is created when Parse() is called and
// is kept alive until one of the two callbacks is called, after which it
// deletes itself.
class SafeJsonParser {
public:
using SuccessCallback = base::Callback<void(scoped_ptr<base::Value>)>;
using ErrorCallback = base::Callback<void(const std::string&)>;
using Factory = SafeJsonParser* (*)(const std::string& unsafe_json,
const SuccessCallback& success_callback,
const ErrorCallback& error_callback);
// Starts parsing the passed in |unsafe_json| and calls either
// |success_callback| or |error_callback| when finished.
static void Parse(const std::string& unsafe_json,
const SuccessCallback& success_callback,
const ErrorCallback& error_callback);
static void SetFactoryForTesting(Factory factory);
protected:
virtual ~SafeJsonParser() {}
private:
virtual void Start() = 0;
};
} // namespace safe_json
#endif // COMPONENTS_SAFE_JSON_SAFE_JSON_PARSER_H_
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