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/*
* Copyright (C) 2016 Canon Inc.
* Copyright (C) 2016-2024 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 required to be 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.
* 3. Neither the name of Canon Inc. nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY CANON 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 CANON INC. AND 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.
*/
#pragma once
#include "DOMFormData.h"
#include "FetchBodyConsumer.h"
#include "FormData.h"
#include "ReadableStream.h"
#include "URLSearchParams.h"
namespace WebCore {
class DeferredPromise;
class FetchBodyOwner;
class FetchBodySource;
class ScriptExecutionContext;
template<typename> class ExceptionOr;
class FetchBody {
public:
void arrayBuffer(FetchBodyOwner&, Ref<DeferredPromise>&&);
void blob(FetchBodyOwner&, Ref<DeferredPromise>&&);
void bytes(FetchBodyOwner&, Ref<DeferredPromise>&&);
void json(FetchBodyOwner&, Ref<DeferredPromise>&&);
void text(FetchBodyOwner&, Ref<DeferredPromise>&&);
void formData(FetchBodyOwner&, Ref<DeferredPromise>&&);
void consumeAsStream(FetchBodyOwner&, FetchBodySource&);
using Init = Variant<RefPtr<Blob>, RefPtr<ArrayBufferView>, RefPtr<ArrayBuffer>, RefPtr<DOMFormData>, RefPtr<URLSearchParams>, RefPtr<ReadableStream>, String>;
static ExceptionOr<FetchBody> extract(Init&&, String&);
FetchBody() = default;
FetchBody(FetchBody&&) = default;
WEBCORE_EXPORT ~FetchBody();
FetchBody& operator=(FetchBody&&) = default;
explicit FetchBody(String&& data)
: m_data(WTFMove(data))
{
}
WEBCORE_EXPORT static std::optional<FetchBody> fromFormData(ScriptExecutionContext&, Ref<FormData>&&);
void loadingFailed(const Exception&);
void loadingSucceeded(const String& contentType);
RefPtr<FormData> bodyAsFormData() const;
using TakenData = Variant<std::nullptr_t, Ref<FormData>, Ref<SharedBuffer>>;
TakenData take();
void setAsFormData(Ref<FormData>&& data) { m_data = WTFMove(data); }
FetchBodyConsumer& consumer() { return m_consumer; }
CheckedRef<FetchBodyConsumer> checkedConsumer() { return consumer(); }
void consumeOnceLoadingFinished(FetchBodyConsumer::Type, Ref<DeferredPromise>&&);
void cleanConsumer() { m_consumer.clean(); }
bool hasConsumerPendingActivity() const { return m_consumer.hasPendingActivity(); }
FetchBody clone();
bool hasReadableStream() const { return !!m_readableStream; }
const ReadableStream* readableStream() const { return m_readableStream.get(); }
ReadableStream* readableStream() { return m_readableStream.get(); }
RefPtr<const ReadableStream> protectedReadableStream() const { return readableStream(); }
RefPtr<ReadableStream> protectedReadableStream() { return readableStream(); }
void setReadableStream(Ref<ReadableStream>&& stream)
{
ASSERT(!m_readableStream);
m_readableStream = WTFMove(stream);
}
void convertReadableStreamToArrayBuffer(FetchBodyOwner&, CompletionHandler<void(std::optional<Exception>&&)>&&);
bool isBlob() const { return std::holds_alternative<Ref<const Blob>>(m_data); }
bool isFormData() const { return std::holds_alternative<Ref<FormData>>(m_data); }
bool isReadableStream() const { return std::holds_alternative<Ref<ReadableStream>>(m_data); }
private:
explicit FetchBody(Ref<const Blob>&& data) : m_data(WTFMove(data)) { }
explicit FetchBody(Ref<const ArrayBuffer>&& data) : m_data(WTFMove(data)) { }
explicit FetchBody(Ref<const ArrayBufferView>&& data) : m_data(WTFMove(data)) { }
explicit FetchBody(Ref<FormData>&& data) : m_data(WTFMove(data)) { }
explicit FetchBody(Ref<const URLSearchParams>&& data) : m_data(WTFMove(data)) { }
explicit FetchBody(Ref<ReadableStream>&& stream) : m_data(stream), m_readableStream(WTFMove(stream)) { }
explicit FetchBody(FetchBodyConsumer&& consumer) : m_consumer(WTFMove(consumer)) { }
void consume(FetchBodyOwner&, Ref<DeferredPromise>&&);
void consumeArrayBuffer(FetchBodyOwner&, Ref<DeferredPromise>&&);
void consumeArrayBufferView(FetchBodyOwner&, Ref<DeferredPromise>&&);
void consumeText(FetchBodyOwner&, Ref<DeferredPromise>&&, const String&);
void consumeBlob(FetchBodyOwner&, Ref<DeferredPromise>&&);
void consumeFormData(FetchBodyOwner&, Ref<DeferredPromise>&&);
bool isArrayBuffer() const { return std::holds_alternative<Ref<const ArrayBuffer>>(m_data); }
bool isArrayBufferView() const { return std::holds_alternative<Ref<const ArrayBufferView>>(m_data); }
bool isURLSearchParams() const { return std::holds_alternative<Ref<const URLSearchParams>>(m_data); }
bool isText() const { return std::holds_alternative<String>(m_data); }
const Blob& blobBody() const { return std::get<Ref<const Blob>>(m_data).get(); }
Ref<const Blob> protectedBlobBody() const { return blobBody(); }
FormData& formDataBody() { return std::get<Ref<FormData>>(m_data).get(); }
Ref<FormData> protectedFormDataBody() { return formDataBody(); }
const FormData& formDataBody() const { return std::get<Ref<FormData>>(m_data).get(); }
Ref<const FormData> protectedFormDataBody() const { return formDataBody(); }
const ArrayBuffer& arrayBufferBody() const { return std::get<Ref<const ArrayBuffer>>(m_data).get(); }
Ref<const ArrayBuffer> protectedArrayBufferBody() const { return arrayBufferBody(); }
const ArrayBufferView& arrayBufferViewBody() const { return std::get<Ref<const ArrayBufferView>>(m_data).get(); }
Ref<const ArrayBufferView> protectedArrayBufferViewBody() const { return arrayBufferViewBody(); }
String& textBody() { return std::get<String>(m_data); }
const String& textBody() const { return std::get<String>(m_data); }
const URLSearchParams& urlSearchParamsBody() const { return std::get<Ref<const URLSearchParams>>(m_data).get(); }
Ref<const URLSearchParams> protectedURLSearchParamsBody() const { return urlSearchParamsBody(); }
using Data = Variant<std::nullptr_t, Ref<const Blob>, Ref<FormData>, Ref<const ArrayBuffer>, Ref<const ArrayBufferView>, Ref<const URLSearchParams>, String, Ref<ReadableStream>>;
Data m_data { nullptr };
FetchBodyConsumer m_consumer { FetchBodyConsumer::Type::None };
RefPtr<ReadableStream> m_readableStream;
};
struct FetchBodyWithType {
FetchBody body;
String type;
};
} // namespace WebCore
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