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// Copyright 2015 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_JSON_SANITIZER_H_
#define COMPONENTS_SAFE_JSON_JSON_SANITIZER_H_
#include <string>
#include "base/callback_forward.h"
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "build/build_config.h"
#if defined(OS_ANDROID)
#include <jni.h>
#endif
namespace safe_json {
// Sanitizes and normalizes JSON by parsing it in a safe environment and
// re-serializing it. Parsing the sanitized JSON should result in a value
// identical to parsing the original JSON.
// This allows parsing the sanitized JSON with the regular JSONParser while
// reducing the risk versus parsing completely untrusted JSON. It also minifies
// the resulting JSON, which might save some space.
class JsonSanitizer {
public:
using StringCallback = base::Callback<void(const std::string&)>;
// Starts sanitizing the passed in unsafe JSON string. Either the passed
// |success_callback| or the |error_callback| will be called with the result
// of the sanitization or an error message, respectively, but not before the
// method returns.
static void Sanitize(const std::string& unsafe_json,
const StringCallback& success_callback,
const StringCallback& error_callback);
#if defined(OS_ANDROID)
static bool Register(JNIEnv* env);
#endif
protected:
JsonSanitizer() {}
~JsonSanitizer() {}
private:
DISALLOW_COPY_AND_ASSIGN(JsonSanitizer);
};
} // namespace safe_json
#endif // COMPONENTS_SAFE_JSON_JSON_SANITIZER_H_
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