package/source/zipapi/XUnbufferedStream.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
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  12  *   contributor license agreements. See the NOTICE file distributed
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #ifndef INCLUDED_PACKAGE_SOURCE_ZIPAPI_XUNBUFFEREDSTREAM_HXX
  20 #define INCLUDED_PACKAGE_SOURCE_ZIPAPI_XUNBUFFEREDSTREAM_HXX
  21
  22 #include <optional>
  23
  24 #include <com/sun/star/io/XSeekable.hpp>
  25 #include <com/sun/star/io/XInputStream.hpp>
  26 #include <com/sun/star/xml/crypto/XCipherContext.hpp>
  27
  28 #include <comphelper/refcountedmutex.hxx>
  29 #include <cppuhelper/implbase.hxx>
  30 #include <rtl/ref.hxx>
  31 #include <package/Inflater.hxx>
  32 #include <ZipEntry.hxx>
  33 #include <CRC32.hxx>
  34
  35 namespace com::sun::star::uno {
  36     class XComponentContext;
  37 }
  38
  39 #define UNBUFF_STREAM_DATA          0
  40 #define UNBUFF_STREAM_RAW           1
  41 #define UNBUFF_STREAM_WRAPPEDRAW    2
  42
  43 class EncryptionData;
  44 class XUnbufferedStream final : public cppu::WeakImplHelper
  45 <
  46     css::io::XInputStream
  47 >
  48 {
  49     rtl::Reference<comphelper::RefCountedMutex> maMutexHolder;
  50
  51     css::uno::Reference < css::io::XInputStream > mxZipStream;
  52     css::uno::Reference < css::io::XSeekable > mxZipSeek;
  53     css::uno::Sequence < sal_Int8 > maCompBuffer, maHeader;
  54     ZipEntry maEntry;
  55     sal_Int32 mnBlockSize;
  56     css::uno::Reference< css::xml::crypto::XCipherContext > m_xCipherContext;
  57     ZipUtils::Inflater maInflater;
  58     bool mbRawStream, mbWrappedRaw;
  59     sal_Int16 mnHeaderToRead;
  60     sal_Int64 mnZipCurrent, mnZipEnd, mnZipSize, mnMyCurrent;
  61     CRC32 maCRC;
  62     bool mbCheckCRC;
  63
  64 public:
  65     XUnbufferedStream(
  66                  const css::uno::Reference< css::uno::XComponentContext >& xContext,
  67                  rtl::Reference<comphelper::RefCountedMutex> aMutexHolder,
  68                  ZipEntry const & rEntry,
  69                  css::uno::Reference < css::io::XInputStream > const & xNewZipStream,
  70                  const ::rtl::Reference< EncryptionData >& rData,
  71                  sal_Int8 nStreamMode,
  72                  ::std::optional<sal_Int64> oDecryptedSize,
  73                  const OUString& aMediaType,
  74                  bool bRecoveryMode );
  75
  76     // allows to read package raw stream
  77     XUnbufferedStream(
  78                  rtl::Reference<comphelper::RefCountedMutex> aMutexHolder,
  79                  const css::uno::Reference < css::io::XInputStream >& xRawStream,
  80                  const ::rtl::Reference< EncryptionData >& rData );
  81
  82     sal_Int64 getSize() const { return mnZipSize; }
  83
  84     virtual ~XUnbufferedStream() override;
  85
  86     // XInputStream
  87     virtual sal_Int32 SAL_CALL readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead ) override;
  88     virtual sal_Int32 SAL_CALL readSomeBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead ) override;
  89     virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip ) override;
  90     virtual sal_Int32 SAL_CALL available(  ) override;
  91     virtual void SAL_CALL closeInput(  ) override;
  92 };
  93 #endif
  94
  95 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */