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/*
* Copyright (C) 2013-2022 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "UserData.h"
#include "APIArray.h"
#include "APIData.h"
#include "APIDictionary.h"
#include "APIError.h"
#include "APIFrameHandle.h"
#include "APIGeometry.h"
#include "APINumber.h"
#include "APIPageHandle.h"
#include "APISerializedScriptValue.h"
#include "APIString.h"
#include "APIURL.h"
#include "APIURLRequest.h"
#include "APIURLResponse.h"
#include "APIUserContentURLPattern.h"
#include "ArgumentCoders.h"
#include "Encoder.h"
#include "WebImage.h"
#include <WebCore/ShareableBitmap.h>
#include <wtf/CheckedArithmetic.h>
namespace WebKit {
UserData::UserData() = default;
UserData::UserData(RefPtr<API::Object>&& object)
: m_object(WTFMove(object))
{
}
UserData::~UserData() = default;
static bool shouldTransform(const API::Object& object, const UserData::Transformer& transformer)
{
if (RefPtr array = dynamicDowncast<API::Array>(object)) {
for (const auto& element : array->elements()) {
if (!element)
continue;
if (shouldTransform(*element, transformer))
return true;
}
}
if (RefPtr dictionary = dynamicDowncast<API::Dictionary>(object)) {
for (const auto& keyValuePair : dictionary->map()) {
if (!keyValuePair.value)
continue;
if (shouldTransform(Ref { *keyValuePair.value }, transformer))
return true;
}
}
return transformer.shouldTransformObject(object);
}
static RefPtr<API::Object> transformGraph(API::Object& object, const UserData::Transformer& transformer)
{
if (object.type() == API::Object::Type::Array) {
auto& array = downcast<API::Array>(object);
auto elements = array.elements().map([&](auto& element) -> RefPtr<API::Object> {
if (!element)
return nullptr;
return transformGraph(*element, transformer);
});
return API::Array::create(WTFMove(elements));
}
if (object.type() == API::Object::Type::Dictionary) {
auto& dictionary = downcast<API::Dictionary>(object);
API::Dictionary::MapType map;
for (const auto& keyValuePair : dictionary.map()) {
RefPtr value = keyValuePair.value;
if (!value)
map.add(keyValuePair.key, nullptr);
else
map.add(keyValuePair.key, transformGraph(*value, transformer));
}
return API::Dictionary::create(WTFMove(map));
}
return transformer.transformObject(object);
}
RefPtr<API::Object> UserData::transform(API::Object* object, const Transformer& transformer)
{
if (!object)
return nullptr;
if (!shouldTransform(*object, transformer))
return object;
return transformGraph(*object, transformer);
}
} // namespace WebKit
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