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/*
* Copyright (C) 2021 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. ``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
* 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.
*/
#pragma once
#include "SharedBuffer.h"
#include <wtf/RefCounted.h>
#include <wtf/URL.h>
#include <wtf/text/WTFString.h>
namespace WTF {
class TextStream;
}
namespace WebCore {
class Model final : public RefCounted<Model> {
public:
WEBCORE_EXPORT static Ref<Model> create(Ref<SharedBuffer>&&, String, URL);
WEBCORE_EXPORT ~Model();
Ref<SharedBuffer> data() const { return m_data; }
const String& mimeType() const { return m_mimeType; }
const URL& url() const { return m_url; }
template<class Encoder> void encode(Encoder&) const;
template<class Decoder> static RefPtr<Model> decode(Decoder&);
private:
explicit Model(Ref<SharedBuffer>&&, String, URL);
Ref<SharedBuffer> m_data;
String m_mimeType;
URL m_url;
};
template<class Encoder>
void Model::encode(Encoder& encoder) const
{
encoder << static_cast<size_t>(m_data->size());
encoder.encodeFixedLengthData(m_data->makeContiguous()->data(), m_data->size(), 1);
encoder << m_mimeType;
encoder << m_url;
}
template<class Decoder>
RefPtr<Model> Model::decode(Decoder& decoder)
{
std::optional<size_t> length;
decoder >> length;
if (!length)
return nullptr;
if (!decoder.template bufferIsLargeEnoughToContain<uint8_t>(length.value())) {
decoder.markInvalid();
return nullptr;
}
Vector<uint8_t> data;
data.grow(*length);
if (!decoder.decodeFixedLengthData(data.data(), data.size(), 1))
return nullptr;
std::optional<String> mimeType;
decoder >> mimeType;
if (!mimeType)
return nullptr;
std::optional<URL> url;
decoder >> url;
if (!url)
return nullptr;
return Model::create(SharedBuffer::create(WTFMove(data)), WTFMove(*mimeType), WTFMove(*url));
}
WEBCORE_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, const Model&);
} // namespace WebCore
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