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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_PACKAGE_INC_ZIPOUTPUTENTRY_HXX
#define INCLUDED_PACKAGE_INC_ZIPOUTPUTENTRY_HXX
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XTempFile.hpp>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/xml/crypto/XCipherContext.hpp>
#include <com/sun/star/xml/crypto/XDigestContext.hpp>
#include <package/Deflater.hxx>
#include <comphelper/threadpool.hxx>
#include "CRC32.hxx"
#include <atomic>
struct ZipEntry;
class ZipPackageBuffer;
class ZipPackageStream;
class ZipOutputEntryBase
{
protected:
css::uno::Reference< css::uno::XComponentContext > m_xContext;
css::uno::Reference< css::io::XOutputStream > m_xOutStream;
css::uno::Reference< css::xml::crypto::XCipherContext > m_xCipherContext;
css::uno::Reference< css::xml::crypto::XDigestContext > m_xDigestContext;
CRC32 m_aCRC;
ZipEntry *m_pCurrentEntry;
sal_Int16 m_nDigested;
ZipPackageStream* m_pCurrentStream;
bool m_bEncryptCurrentEntry;
public:
virtual ~ZipOutputEntryBase() = default;
virtual void writeStream(const css::uno::Reference< css::io::XInputStream >& xInStream) = 0;
ZipEntry* getZipEntry() { return m_pCurrentEntry; }
ZipPackageStream* getZipPackageStream() { return m_pCurrentStream; }
bool isEncrypt() const { return m_bEncryptCurrentEntry; }
void closeEntry();
protected:
ZipOutputEntryBase(
const css::uno::Reference< css::io::XOutputStream >& rxOutStream,
const css::uno::Reference< css::uno::XComponentContext >& rxContext,
ZipEntry& rEntry, ZipPackageStream* pStream, bool bEncrypt, bool checkStream);
// Inherited classes call this with deflated data buffer.
void processDeflated( const css::uno::Sequence< sal_Int8 >& deflateBuffer, sal_Int32 nLength );
// Inherited classes call this with the input buffer.
void processInput( const css::uno::Sequence< sal_Int8 >& rBuffer );
virtual void finishDeflater() = 0;
virtual sal_Int64 getDeflaterTotalIn() const = 0;
virtual sal_Int64 getDeflaterTotalOut() const = 0;
virtual void deflaterReset() = 0;
virtual bool isDeflaterFinished() const = 0;
};
// Normal non-threaded case.
class ZipOutputEntry : public ZipOutputEntryBase
{
css::uno::Sequence< sal_Int8 > m_aDeflateBuffer;
ZipUtils::Deflater m_aDeflater;
public:
ZipOutputEntry(
const css::uno::Reference< css::io::XOutputStream >& rxOutStream,
const css::uno::Reference< css::uno::XComponentContext >& rxContext,
ZipEntry& rEntry, ZipPackageStream* pStream, bool bEncrypt);
void writeStream(const css::uno::Reference< css::io::XInputStream >& xInStream) override;
void write(const css::uno::Sequence< sal_Int8 >& rBuffer);
protected:
ZipOutputEntry(
const css::uno::Reference< css::io::XOutputStream >& rxOutStream,
const css::uno::Reference< css::uno::XComponentContext >& rxContext,
ZipEntry& rEntry, ZipPackageStream* pStream, bool bEncrypt, bool checkStream);
virtual void finishDeflater() override;
virtual sal_Int64 getDeflaterTotalIn() const override;
virtual sal_Int64 getDeflaterTotalOut() const override;
virtual void deflaterReset() override;
virtual bool isDeflaterFinished() const override;
void doDeflate();
};
// Class that runs the compression in a background thread.
class ZipOutputEntryInThread final : public ZipOutputEntry
{
class Task;
OUString m_aTempURL;
std::exception_ptr m_aParallelDeflateException;
std::atomic<bool> m_bFinished;
public:
ZipOutputEntryInThread(
const css::uno::Reference< css::uno::XComponentContext >& rxContext,
ZipEntry& rEntry, ZipPackageStream* pStream, bool bEncrypt);
std::unique_ptr<comphelper::ThreadTask> createTask(
const std::shared_ptr<comphelper::ThreadTaskTag>& pTag,
const css::uno::Reference< css::io::XInputStream >& xInStream );
/* This block of methods is for threaded zipping, where we compress to a temp stream, whose
data is retrieved via getData */
void createBufferFile();
void setParallelDeflateException(const std::exception_ptr& exception) { m_aParallelDeflateException = exception; }
css::uno::Reference< css::io::XInputStream > getData() const;
const std::exception_ptr& getParallelDeflateException() const { return m_aParallelDeflateException; }
void closeBufferFile();
void deleteBufferFile();
bool isFinished() const { return m_bFinished; }
private:
void setFinished() { m_bFinished = true; }
};
// Class that synchronously runs the compression in multiple threads (using ThreadDeflater).
class ZipOutputEntryParallel final : public ZipOutputEntryBase
{
sal_Int64 totalIn;
sal_Int64 totalOut;
public:
ZipOutputEntryParallel(
const css::uno::Reference< css::io::XOutputStream >& rxOutStream,
const css::uno::Reference< css::uno::XComponentContext >& rxContext,
ZipEntry& rEntry, ZipPackageStream* pStream, bool bEncrypt);
void writeStream(const css::uno::Reference< css::io::XInputStream >& xInStream) override;
private:
virtual void finishDeflater() override;
virtual sal_Int64 getDeflaterTotalIn() const override;
virtual sal_Int64 getDeflaterTotalOut() const override;
virtual void deflaterReset() override;
virtual bool isDeflaterFinished() const override;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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