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/*
* Copyright (C) 2016 Canon Inc.
* Copyright (C) 2020 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 "ActiveDOMObject.h"
#include "ExceptionOr.h"
#include "FetchBody.h"
#include "FetchBodySource.h"
#include "FetchHeaders.h"
#include "FetchLoader.h"
#include "FetchLoaderClient.h"
#include "ResourceError.h"
#include "SharedBuffer.h"
namespace WebCore {
DECLARE_ALLOCATOR_WITH_HEAP_IDENTIFIER(FetchBodyOwner);
class FetchBodyOwner : public RefCounted<FetchBodyOwner>, public ActiveDOMObject, public CanMakeWeakPtr<FetchBodyOwner> {
WTF_MAKE_FAST_ALLOCATED_WITH_HEAP_IDENTIFIER(FetchBodyOwner);
public:
~FetchBodyOwner();
bool bodyUsed() const { return isDisturbed(); }
void arrayBuffer(Ref<DeferredPromise>&&);
void blob(Ref<DeferredPromise>&&);
void formData(Ref<DeferredPromise>&&);
void json(Ref<DeferredPromise>&&);
void text(Ref<DeferredPromise>&&);
bool isDisturbed() const;
bool isDisturbedOrLocked() const;
void loadBlob(const Blob&, FetchBodyConsumer*);
bool isActive() const { return !!m_blobLoader; }
ExceptionOr<RefPtr<ReadableStream>> readableStream(JSC::JSGlobalObject&);
bool hasReadableStreamBody() const { return m_body && m_body->hasReadableStream(); }
bool isReadableStreamBody() const { return m_body && m_body->isReadableStream(); }
virtual void consumeBodyAsStream();
virtual void feedStream() { }
virtual void cancel() { }
virtual void loadBody() { }
bool hasLoadingError() const;
ResourceError loadingError() const;
std::optional<Exception> loadingException() const;
String contentType() const { return m_headers->fastGet(HTTPHeaderName::ContentType); }
protected:
FetchBodyOwner(ScriptExecutionContext*, std::optional<FetchBody>&&, Ref<FetchHeaders>&&);
const FetchBody& body() const { return *m_body; }
FetchBody& body() { return *m_body; }
bool isBodyNull() const { return !m_body; }
bool isBodyNullOrOpaque() const { return !m_body || m_isBodyOpaque; }
void cloneBody(FetchBodyOwner&);
ExceptionOr<void> extractBody(FetchBody::Init&&);
void consumeOnceLoadingFinished(FetchBodyConsumer::Type, Ref<DeferredPromise>&&);
void setBody(FetchBody&& body) { m_body = WTFMove(body); }
ExceptionOr<void> createReadableStream(JSC::JSGlobalObject&);
// ActiveDOMObject API
void stop() override;
void setDisturbed() { m_isDisturbed = true; }
void setBodyAsOpaque() { m_isBodyOpaque = true; }
bool isBodyOpaque() const { return m_isBodyOpaque; }
void setLoadingError(Exception&&);
void setLoadingError(ResourceError&&);
private:
// Blob loading routines
void blobChunk(const SharedBuffer&);
void blobLoadingSucceeded();
void blobLoadingFailed();
void finishBlobLoading();
// ActiveDOMObject API
bool virtualHasPendingActivity() const final;
struct BlobLoader final : FetchLoaderClient {
BlobLoader(FetchBodyOwner&);
// FetchLoaderClient API
void didReceiveResponse(const ResourceResponse&) final;
void didReceiveData(const SharedBuffer& buffer) final { owner.blobChunk(buffer); }
void didFail(const ResourceError&) final;
void didSucceed(const NetworkLoadMetrics&) final { owner.blobLoadingSucceeded(); }
FetchBodyOwner& owner;
std::unique_ptr<FetchLoader> loader;
};
protected:
std::optional<FetchBody> m_body;
bool m_isDisturbed { false };
RefPtr<FetchBodySource> m_readableStreamSource;
Ref<FetchHeaders> m_headers;
private:
std::optional<BlobLoader> m_blobLoader;
bool m_isBodyOpaque { false };
std::variant<std::nullptr_t, Exception, ResourceError> m_loadingError;
};
} // namespace WebCore
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