lotuswordpro/source/filter/lwpfilter.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
   4  *  The Contents of this file are made available subject to the terms of
   5  *  either of the following licenses
   6  *
   7  *         - GNU Lesser General Public License Version 2.1
   8  *         - Sun Industry Standards Source License Version 1.1
   9  *
  10  *  Sun Microsystems Inc., October, 2000
  11  *
  12  *  GNU Lesser General Public License Version 2.1
  13  *  =============================================
  14  *  Copyright 2000 by Sun Microsystems, Inc.
  15  *  901 San Antonio Road, Palo Alto, CA 94303, USA
  16  *
  17  *  This library is free software; you can redistribute it and/or
  18  *  modify it under the terms of the GNU Lesser General Public
  19  *  License version 2.1, as published by the Free Software Foundation.
  20  *
  21  *  This library is distributed in the hope that it will be useful,
  22  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  24  *  Lesser General Public License for more details.
  25  *
  26  *  You should have received a copy of the GNU Lesser General Public
  27  *  License along with this library; if not, write to the Free Software
  28  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  29  *  MA  02111-1307  USA
  30  *
  31  *
  32  *  Sun Industry Standards Source License Version 1.1
  33  *  =================================================
  34  *  The contents of this file are subject to the Sun Industry Standards
  35  *  Source License Version 1.1 (the "License"); You may not use this file
  36  *  except in compliance with the License. You may obtain a copy of the
  37  *  License at http://www.openoffice.org/license.html.
  38  *
  39  *  Software provided under this License is provided on an "AS IS" basis,
  40  *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
  41  *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
  42  *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
  43  *  See the License for the specific provisions governing your rights and
  44  *  obligations concerning the Software.
  45  *
  46  *  The Initial Developer of the Original Code is: IBM Corporation
  47  *
  48  *  Copyright: 2008 by IBM Corporation
  49  *
  50  *  All Rights Reserved.
  51  *
  52  *  Contributor(s): _______________________________________
  53  *
  54  *
  55  ************************************************************************/
  56 /*************************************************************************
  57  * @file
  58  * Circle object.
  59  ************************************************************************/
  60 #include "lwpfilter.hxx"
  61 #include "lwpresource.hxx"
  62 #include "xfilter/xfsaxstream.hxx"
  63 #include "lwp9reader.hxx"
  64 #include "lwpsvstream.hxx"
  65 #include "xfilter/xffontfactory.hxx"
  66 #include "xfilter/xfstylemanager.hxx"
  67
  68 #include <osl/file.h>
  69 #include <osl/file.hxx>
  70 #include <vcl/svapp.hxx>
  71 #include <xmloff/attrlist.hxx>
  72 #include <com/sun/star/io/IOException.hpp>
  73 #include <com/sun/star/frame/XDesktop.hpp>
  74 #include <com/sun/star/frame/XController.hpp>
  75 #include <com/sun/star/text/XTextDocument.hpp>
  76 #include <com/sun/star/text/XText.hpp>
  77
  78 #include <cppuhelper/supportsservice.hxx>
  79
  80 #include <sfx2/docfile.hxx>
  81
  82 #include <boost/scoped_ptr.hpp>
  83
  84 using namespace ::cppu;
  85 using namespace ::com::sun::star::lang;
  86 using namespace ::com::sun::star::frame;
  87 using namespace ::com::sun::star::text;
  88 using namespace ::com::sun::star::io;
  89 using namespace ::com::sun::star::registry;
  90 using namespace ::com::sun::star::document;
  91 using namespace ::com::sun::star::beans;
  92 using namespace ::com::sun::star;
  93 using ::com::sun::star::uno::Sequence;
  94
  95  /**
  96  * @descr   decompressed small file
  97  * @param   pCompressed - real file stream
  98  * @param   pDecompressed - file decompressed, create inside, caller should delete it
  99  * @return  success - sal_True, fail - sal_False
 100  */
 101 #include "bento.hxx"
 102 using namespace OpenStormBento;
 103 #include "explode.hxx"
 104  bool Decompress(SvStream *pCompressed, SvStream * & pOutDecompressed)
 105 {
 106     pCompressed->Seek(0);
 107     std::unique_ptr<SvStream> aDecompressed(new SvMemoryStream(4096, 4096));
 108     unsigned char buffer[512];
 109     pCompressed->Read(buffer, 16);
 110     aDecompressed->Write(buffer, 16);
 111
 112     boost::scoped_ptr<LwpSvStream> aLwpStream(new LwpSvStream(pCompressed));
 113     LtcBenContainer* pBentoContainer;
 114     sal_uLong ulRet = BenOpenContainer(aLwpStream.get(), &pBentoContainer);
 115     if (ulRet != BenErr_OK)
 116         return false;
 117
 118     boost::scoped_ptr<LtcUtBenValueStream> aWordProData(pBentoContainer->FindValueStreamWithPropertyName("WordProData"));
 119
 120     if (!aWordProData.get())
 121         return false;
 122
 123     // decompressing
 124     Decompression decompress(aWordProData.get(), aDecompressed.get());
 125     if (0!= decompress.explode())
 126         return false;
 127
 128     sal_uInt32 nPos = aWordProData->GetSize();
 129     nPos += 0x10;
 130
 131     pCompressed->Seek(nPos);
 132     while (sal_uInt32 iRead = pCompressed->Read(buffer, 512))
 133         aDecompressed->Write(buffer, iRead);
 134
 135     //transfer ownership of aDecompressed's ptr
 136     pOutDecompressed = aDecompressed.release();
 137     return true;
 138 }
 139
 140  /**
 141  * @descr   Get LwpSvStream, if small file, both compressed/decompressed stream
 142  *                  Otherwise, only normal stream
 143  * @param   pStream - real file stream
 144  * @param    LwpSvStream * , created inside, deleted outside
 145  * @param      sal_Bool, sal_True -
 146  */
 147  bool GetLwpSvStream(SvStream *pStream, LwpSvStream * & pLwpSvStream)
 148 {
 149     SvStream * pDecompressed = NULL;
 150
 151     sal_uInt32 nTag;
 152     pStream->Seek(0x10);
 153     pStream->ReadUInt32( nTag );
 154     if (nTag != 0x3750574c) // "LWP7"
 155     {
 156         // small file, needs decompression
 157         if (!Decompress(pStream, pDecompressed))
 158         {
 159             pLwpSvStream = NULL;
 160             return true;
 161         }
 162         pStream->Seek(0);
 163         pDecompressed->Seek(0);
 164     }
 165
 166     pLwpSvStream = NULL;
 167     bool bCompressed = false;
 168     if (pDecompressed)
 169     {
 170         LwpSvStream *pOriginalLwpSvStream = new LwpSvStream(pStream);
 171         pLwpSvStream  = new LwpSvStream(pDecompressed, pOriginalLwpSvStream);
 172         bCompressed = true;
 173     }
 174     else
 175     {
 176         pLwpSvStream  = new LwpSvStream(pStream);
 177     }
 178     return bCompressed;
 179 }
 180 int ReadWordproFile(SvStream &rStream, uno::Reference<css::xml::sax::XDocumentHandler>& xHandler)
 181 {
 182     try
 183     {
 184         LwpSvStream *pRawLwpSvStream = NULL;
 185         boost::scoped_ptr<LwpSvStream> aLwpSvStream;
 186         boost::scoped_ptr<LwpSvStream> aCompressedLwpSvStream;
 187         boost::scoped_ptr<SvStream> aDecompressed;
 188         if (GetLwpSvStream(&rStream, pRawLwpSvStream) && pRawLwpSvStream)
 189         {
 190             SvStream *pDecompressed = pRawLwpSvStream->GetStream();
 191             if (pDecompressed)
 192             {
 193                 aDecompressed.reset(pDecompressed);
 194                 aCompressedLwpSvStream.reset(pRawLwpSvStream->GetCompressedStream());
 195             }
 196         }
 197
 198         if (!pRawLwpSvStream)
 199         {
 200             // nothing returned, fail when uncompressing
 201             return 1;
 202         }
 203
 204         aLwpSvStream.reset(pRawLwpSvStream);
 205
 206         boost::scoped_ptr<IXFStream> pStrm(new XFSaxStream(xHandler));
 207         Lwp9Reader reader(aLwpSvStream.get(), pStrm.get());
 208         //Reset all static objects,because this function may be called many times.
 209         XFGlobalReset();
 210         reader.Read();
 211
 212         return 0;
 213     }
 214     catch (...)
 215     {
 216         return 1;
 217     }
 218 }
 219
 220 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */