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Diffstat (limited to '')
| -rw-r--r-- | lotuswordpro/source/filter/lwpfilter.cxx | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/lotuswordpro/source/filter/lwpfilter.cxx b/lotuswordpro/source/filter/lwpfilter.cxx new file mode 100644 index 000000000..e8ba358ae --- /dev/null +++ b/lotuswordpro/source/filter/lwpfilter.cxx @@ -0,0 +1,213 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (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.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: IBM Corporation + * + * Copyright: 2008 by IBM Corporation + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ +/************************************************************************* + * @file + * Circle object. + ************************************************************************/ +#include "lwpfilter.hxx" +#include <xfilter/xfglobal.hxx> +#include <xfilter/xfsaxstream.hxx> +#include "lwp9reader.hxx" +#include <lwpsvstream.hxx> + +#include <tools/stream.hxx> +#include <com/sun/star/io/IOException.hpp> +#include <com/sun/star/text/XTextDocument.hpp> + +#include <memory> + +using namespace ::cppu; +using namespace ::com::sun::star::lang; +using namespace ::com::sun::star::text; +using namespace ::com::sun::star::io; +using namespace ::com::sun::star::beans; +using namespace ::com::sun::star; + +/** + * @descr decompressed small file + * @param pCompressed - real file stream + * @param pDecompressed - file decompressed, create inside, caller should delete it + * @return success - sal_True, fail - sal_False + */ +#include "bento.hxx" +using namespace OpenStormBento; +#include "explode.hxx" +static bool Decompress(SvStream* pCompressed, SvStream*& pOutDecompressed) +{ + pCompressed->Seek(0); + std::unique_ptr<SvMemoryStream> aDecompressed(new SvMemoryStream(4096, 4096)); + unsigned char buffer[512]; + pCompressed->ReadBytes(buffer, 16); + aDecompressed->WriteBytes(buffer, 16); + + LwpSvStream aLwpStream(pCompressed); + std::unique_ptr<OpenStormBento::LtcBenContainer> pBentoContainer; + { + sal_uLong ulRet = BenOpenContainer(&aLwpStream, &pBentoContainer); + if (ulRet != BenErr_OK) + return false; + } + + std::unique_ptr<LtcUtBenValueStream> aWordProData( + pBentoContainer->FindValueStreamWithPropertyName("WordProData")); + + if (!aWordProData) + return false; + + // decompressing + Decompression decompress(aWordProData.get(), aDecompressed.get()); + if (0 != decompress.explode()) + return false; + + sal_uInt32 nPos = aWordProData->GetSize(); + nPos += 0x10; + + pCompressed->Seek(nPos); + while (sal_uInt32 iRead = pCompressed->ReadBytes(buffer, 512)) + aDecompressed->WriteBytes(buffer, iRead); + + // disable stream growing past its current size + aDecompressed->SetResizeOffset(0); + + //transfer ownership of aDecompressed's ptr + pOutDecompressed = aDecompressed.release(); + return true; +} + +/** + * @descr Get LwpSvStream, if small file, both compressed/decompressed stream + * Otherwise, only normal stream + * @param pStream - real file stream + * @param LwpSvStream * , created inside, deleted outside + * @param sal_Bool, sal_True - + */ +static bool GetLwpSvStream(SvStream* pStream, LwpSvStream*& pLwpSvStream) +{ + SvStream* pDecompressed = nullptr; + + pStream->Seek(0x10); + sal_uInt32 nTag(0); + pStream->ReadUInt32(nTag); + if (nTag != 0x3750574c) // "LWP7" + { + // small file, needs decompression + if (!Decompress(pStream, pDecompressed)) + { + pLwpSvStream = nullptr; + return true; + } + pStream->Seek(0); + pDecompressed->Seek(0); + } + + pLwpSvStream = nullptr; + bool bCompressed = false; + if (pDecompressed) + { + LwpSvStream* pOriginalLwpSvStream = new LwpSvStream(pStream); + pLwpSvStream = new LwpSvStream(pDecompressed, pOriginalLwpSvStream); + bCompressed = true; + } + else + { + pLwpSvStream = new LwpSvStream(pStream); + } + return bCompressed; +} +int ReadWordproFile(SvStream& rStream, + uno::Reference<css::xml::sax::XDocumentHandler> const& xHandler) +{ + int nRet = 0; + try + { + LwpSvStream* pRawLwpSvStream = nullptr; + std::unique_ptr<LwpSvStream> aLwpSvStream; + std::unique_ptr<LwpSvStream> aCompressedLwpSvStream; + std::unique_ptr<SvStream> aDecompressed; + if (GetLwpSvStream(&rStream, pRawLwpSvStream) && pRawLwpSvStream) + { + SvStream* pDecompressed = pRawLwpSvStream->GetStream(); + if (pDecompressed) + { + aDecompressed.reset(pDecompressed); + aCompressedLwpSvStream.reset(pRawLwpSvStream->GetCompressedStream()); + } + } + + if (!pRawLwpSvStream) + { + // nothing returned, fail when uncompressing + return 1; + } + + aLwpSvStream.reset(pRawLwpSvStream); + + XFSaxStream aStrm(xHandler); + Lwp9Reader reader(aLwpSvStream.get(), &aStrm); + //Reset all static objects,because this function may be called many times. + XFGlobalReset(); + const bool bOk = reader.Read(); + if (!bOk) + nRet = 1; + } + catch (...) + { + return 1; + } + return nRet; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |