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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
* Copyright (C) 2016 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER 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 "NetworkDataTask.h"
#include <WebCore/FileStreamClient.h>
#include <wtf/FileSystem.h>
namespace WebCore {
class AsyncFileStream;
class BlobDataFileReference;
class BlobData;
class BlobDataItem;
}
namespace WebKit {
class NetworkProcess;
class NetworkDataTaskBlob final : public NetworkDataTask, public WebCore::FileStreamClient {
public:
static Ref<NetworkDataTask> create(NetworkSession& session, NetworkDataTaskClient& client, const WebCore::ResourceRequest& request, const Vector<RefPtr<WebCore::BlobDataFileReference>>& fileReferences)
{
return adoptRef(*new NetworkDataTaskBlob(session, client, request, fileReferences));
}
~NetworkDataTaskBlob();
private:
NetworkDataTaskBlob(NetworkSession&, NetworkDataTaskClient&, const WebCore::ResourceRequest&, const Vector<RefPtr<WebCore::BlobDataFileReference>>&);
void cancel() override;
void resume() override;
void invalidateAndCancel() override;
NetworkDataTask::State state() const override { return m_state; }
void setPendingDownloadLocation(const String&, SandboxExtension::Handle&&, bool /*allowOverwrite*/) override;
String suggestedFilename() const override;
// FileStreamClient methods.
void didGetSize(long long) override;
void didOpen(bool) override;
void didRead(int) override;
enum class Error {
NoError = 0,
NotFoundError = 1,
SecurityError = 2,
RangeError = 3,
NotReadableError = 4,
MethodNotAllowed = 5
};
void clearStream();
void getSizeForNext();
void dispatchDidReceiveResponse();
std::optional<Error> seek();
void consumeData(const uint8_t* data, int bytesRead);
void read();
void readData(const WebCore::BlobDataItem&);
void readFile(const WebCore::BlobDataItem&);
void download();
bool writeDownload(const uint8_t* data, int bytesRead);
void cleanDownloadFiles();
void didFailDownload(const WebCore::ResourceError&);
void didFinishDownload();
void didFail(Error);
void didFinish();
enum { kPositionNotSpecified = -1 };
RefPtr<WebCore::BlobData> m_blobData;
std::unique_ptr<WebCore::AsyncFileStream> m_stream; // For asynchronous loading.
Vector<uint8_t> m_buffer;
Vector<long long> m_itemLengthList;
State m_state { State::Suspended };
bool m_isRangeRequest { false };
long long m_rangeStart { kPositionNotSpecified };
long long m_rangeEnd { kPositionNotSpecified };
long long m_totalSize { 0 };
long long m_downloadBytesWritten { 0 };
long long m_totalRemainingSize { 0 };
long long m_currentItemReadSize { 0 };
unsigned m_sizeItemCount { 0 };
unsigned m_readItemCount { 0 };
bool m_fileOpened { false };
FileSystem::PlatformFileHandle m_downloadFile { FileSystem::invalidPlatformFileHandle };
Vector<RefPtr<WebCore::BlobDataFileReference>> m_fileReferences;
RefPtr<SandboxExtension> m_sandboxExtension;
Ref<NetworkProcess> m_networkProcess;
};
} // namespace WebKit
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