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  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  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 <com/sun/star/io/XSeekable.hpp>
  23 #include <com/sun/star/io/XInputStream.hpp>
  24 #include <com/sun/star/xml/crypto/XCipherContext.hpp>
  25
  26 #include <comphelper/refcountedmutex.hxx>
  27 #include <cppuhelper/implbase.hxx>
  28 #include <rtl/ref.hxx>
  29 #include <package/Inflater.hxx>
  30 #include <ZipEntry.hxx>
  31 #include <CRC32.hxx>
  32
  33 namespace com::sun::star::uno {
  34     class XComponentContext;
  35 }
  36
  37 #define UNBUFF_STREAM_DATA          0
  38 #define UNBUFF_STREAM_RAW           1
  39 #define UNBUFF_STREAM_WRAPPEDRAW    2
  40
  41 class EncryptionData;
  42 class XUnbufferedStream final : public cppu::WeakImplHelper
  43 <
  44     css::io::XInputStream
  45 >
  46 {
  47     rtl::Reference<comphelper::RefCountedMutex> maMutexHolder;
  48
  49     css::uno::Reference < css::io::XInputStream > mxZipStream;
  50     css::uno::Reference < css::io::XSeekable > mxZipSeek;
  51     css::uno::Sequence < sal_Int8 > maCompBuffer, maHeader;
  52     ZipEntry maEntry;
  53     sal_Int32 mnBlockSize;
  54     css::uno::Reference< css::xml::crypto::XCipherContext > m_xCipherContext;
  55     ZipUtils::Inflater maInflater;
  56     bool mbRawStream, mbWrappedRaw;
  57     sal_Int16 mnHeaderToRead;
  58     sal_Int64 mnZipCurrent, mnZipEnd, mnZipSize, mnMyCurrent;
  59     CRC32 maCRC;
  60     bool mbCheckCRC;
  61
  62 public:
  63     XUnbufferedStream(
  64                  const css::uno::Reference< css::uno::XComponentContext >& xContext,
  65                  rtl::Reference<comphelper::RefCountedMutex> aMutexHolder,
  66                  ZipEntry const & rEntry,
  67                  css::uno::Reference < css::io::XInputStream > const & xNewZipStream,
  68                  const ::rtl::Reference< EncryptionData >& rData,
  69                  sal_Int8 nStreamMode,
  70                  bool bIsEncrypted,
  71                  const OUString& aMediaType,
  72                  bool bRecoveryMode );
  73
  74     // allows to read package raw stream
  75     XUnbufferedStream(
  76                  rtl::Reference<comphelper::RefCountedMutex> aMutexHolder,
  77                  const css::uno::Reference < css::io::XInputStream >& xRawStream,
  78                  const ::rtl::Reference< EncryptionData >& rData );
  79
  80     sal_Int64 getSize() const { return mnZipSize; }
  81
  82     virtual ~XUnbufferedStream() override;
  83
  84     // XInputStream
  85     virtual sal_Int32 SAL_CALL readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead ) override;
  86     virtual sal_Int32 SAL_CALL readSomeBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead ) override;
  87     virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip ) override;
  88     virtual sal_Int32 SAL_CALL available(  ) override;
  89     virtual void SAL_CALL closeInput(  ) override;
  90 };
  91 #endif
  92
  93 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */