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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 .
*/
#include <sfx2/docfile.hxx>
#include <sfx2/docfilt.hxx>
#include <sfx2/sfxsids.hrc>
#include <filter/msfilter/msoleexp.hxx>
#include <svx/svxerr.hxx>
#include <unotools/fltrcfg.hxx>
#include <unotools/streamwrap.hxx>
#include <sot/storage.hxx>
#include <comphelper/sequenceashashmap.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/packages/XPackageEncryption.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <sdpptwrp.hxx>
#include <DrawDocShell.hxx>
#include <sfx2/frame.hxx>
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::task;
using namespace ::com::sun::star::frame;
typedef sal_Bool ( *ExportPPTPointer )( const std::vector< css::beans::PropertyValue >&, tools::SvRef<SotStorage> const&,
Reference< XModel > const &,
Reference< XStatusIndicator > const &,
SvMemoryStream*, sal_uInt32 nCnvrtFlags );
typedef sal_Bool ( *ImportPPTPointer )( SdDrawDocument*, SvStream&, SotStorage&, SfxMedium& );
typedef sal_Bool ( *SaveVBAPointer )( SfxObjectShell&, SvMemoryStream*& );
#ifdef DISABLE_DYNLOADING
extern "C" sal_Bool ExportPPT( const std::vector< css::beans::PropertyValue >&, tools::SvRef<SotStorage> const&,
Reference< XModel > const &,
Reference< XStatusIndicator > const &,
SvMemoryStream*, sal_uInt32 nCnvrtFlags );
extern "C" sal_Bool ImportPPT( SdDrawDocument*, SvStream&, SotStorage&, SfxMedium& );
extern "C" sal_Bool SaveVBA( SfxObjectShell&, SvMemoryStream*& );
#endif
SdPPTFilter::SdPPTFilter( SfxMedium& rMedium, ::sd::DrawDocShell& rDocShell ) :
SdFilter( rMedium, rDocShell ),
pBas ( nullptr )
{
}
SdPPTFilter::~SdPPTFilter()
{
delete pBas; // deleting the compressed basic storage
}
static void lcl_getListOfStreams(SotStorage * pStorage, comphelper::SequenceAsHashMap& aStreamsData, const OUString& sPrefix)
{
SvStorageInfoList aElements;
pStorage->FillInfoList(&aElements);
for (const auto & aElement : aElements)
{
OUString sStreamFullName = sPrefix.getLength() ? sPrefix + "/" + aElement.GetName() : aElement.GetName();
if (aElement.IsStorage())
{
SotStorage * pSubStorage = pStorage->OpenSotStorage(aElement.GetName(), StreamMode::STD_READ | StreamMode::SHARE_DENYALL);
lcl_getListOfStreams(pSubStorage, aStreamsData, sStreamFullName);
}
else
{
// Read stream
tools::SvRef<SotStorageStream> rStream = pStorage->OpenSotStream(aElement.GetName(), StreamMode::READ | StreamMode::SHARE_DENYALL);
if (rStream.is())
{
sal_Int32 nStreamSize = rStream->GetSize();
Sequence< sal_Int8 > oData;
oData.realloc(nStreamSize);
sal_Int32 nReadBytes = rStream->ReadBytes(oData.getArray(), nStreamSize);
if (nStreamSize == nReadBytes)
aStreamsData[sStreamFullName] <<= oData;
}
}
}
}
static tools::SvRef<SotStorage> lcl_DRMDecrypt(SfxMedium& rMedium, tools::SvRef<SotStorage>& rStorage, std::shared_ptr<SvStream>& rNewStorageStrm)
{
tools::SvRef<SotStorage> aNewStorage;
// We have DRM encrypted storage. We should try to decrypt it first, if we can
Sequence< Any > aArguments;
Reference<XComponentContext> xComponentContext(comphelper::getProcessComponentContext());
Reference< css::packages::XPackageEncryption > xPackageEncryption(
xComponentContext->getServiceManager()->createInstanceWithArgumentsAndContext(
"com.sun.star.comp.oox.crypto.DRMDataSpace", aArguments, xComponentContext), UNO_QUERY);
if (!xPackageEncryption.is())
{
// We do not know how to decrypt this
return aNewStorage;
}
comphelper::SequenceAsHashMap aStreamsData;
lcl_getListOfStreams(rStorage.get(), aStreamsData, "");
try {
Sequence<NamedValue> aStreams = aStreamsData.getAsConstNamedValueList();
if (!xPackageEncryption->readEncryptionInfo(aStreams))
{
// We failed with decryption
return aNewStorage;
}
tools::SvRef<SotStorageStream> rContentStream = rStorage->OpenSotStream("\011DRMContent", StreamMode::READ | StreamMode::SHARE_DENYALL);
if (!rContentStream.is())
{
return aNewStorage;
}
rNewStorageStrm = std::make_shared<SvMemoryStream>();
Reference<css::io::XInputStream > xInputStream(new utl::OSeekableInputStreamWrapper(rContentStream.get(), false));
Reference<css::io::XOutputStream > xDecryptedStream(new utl::OSeekableOutputStreamWrapper(*rNewStorageStrm));
if (!xPackageEncryption->decrypt(xInputStream, xDecryptedStream))
{
// We failed with decryption
return aNewStorage;
}
rNewStorageStrm->Seek(0);
// Further reading is done from new document
aNewStorage = new SotStorage(*rNewStorageStrm);
// Set the media descriptor data
Sequence<NamedValue> aEncryptionData = xPackageEncryption->createEncryptionData("");
rMedium.GetItemSet()->Put(SfxUnoAnyItem(SID_ENCRYPTIONDATA, makeAny(aEncryptionData)));
}
catch (const std::exception&)
{
return aNewStorage;
}
return aNewStorage;
}
bool SdPPTFilter::Import()
{
bool bRet = false;
std::shared_ptr<SvStream> aDecryptedStorageStrm;
tools::SvRef<SotStorage> pStorage = new SotStorage( mrMedium.GetInStream(), false );
if( !pStorage->GetError() )
{
/* check if there is a dualstorage, then the
document is probably a PPT95 containing PPT97 */
tools::SvRef<SotStorage> xDualStorage;
OUString sDualStorage( "PP97_DUALSTORAGE" );
if ( pStorage->IsContained( sDualStorage ) )
{
xDualStorage = pStorage->OpenSotStorage( sDualStorage, StreamMode::STD_READ );
pStorage = xDualStorage;
}
OUString sDRMContent("\011DRMContent");
if (pStorage->IsContained(sDRMContent))
{
// Document is DRM encrypted
pStorage = lcl_DRMDecrypt(mrMedium, pStorage, aDecryptedStorageStrm);
}
std::unique_ptr<SvStream> pDocStream(pStorage->OpenSotStream( "PowerPoint Document" , StreamMode::STD_READ ));
if( pDocStream )
{
pDocStream->SetVersion( pStorage->GetVersion() );
pDocStream->SetCryptMaskKey(pStorage->GetKey());
if ( pStorage->IsStream( "EncryptedSummary" ) )
mrMedium.SetError(ERRCODE_SVX_READ_FILTER_PPOINT);
else
{
#ifdef DISABLE_DYNLOADING
ImportPPTPointer pPPTImport = ImportPPT;
#else
ImportPPTPointer pPPTImport = reinterpret_cast< ImportPPTPointer >(
SdFilter::GetLibrarySymbol(mrMedium.GetFilter()->GetUserData(), "ImportPPT"));
#endif
if ( pPPTImport )
bRet = pPPTImport( &mrDocument, *pDocStream, *pStorage, mrMedium );
if ( !bRet )
mrMedium.SetError(SVSTREAM_WRONGVERSION);
}
}
}
return bRet;
}
bool SdPPTFilter::Export()
{
bool bRet = false;
if( mxModel.is() )
{
tools::SvRef<SotStorage> xStorRef = new SotStorage( mrMedium.GetOutStream(), false );
#ifdef DISABLE_DYNLOADING
ExportPPTPointer PPTExport = ExportPPT;
#else
ExportPPTPointer PPTExport = reinterpret_cast< ExportPPTPointer >(
SdFilter::GetLibrarySymbol(mrMedium.GetFilter()->GetUserData(), "ExportPPT"));
#endif
if( PPTExport && xStorRef.is() )
{
sal_uInt32 nCnvrtFlags = 0;
const SvtFilterOptions& rFilterOptions = SvtFilterOptions::Get();
if ( rFilterOptions.IsMath2MathType() )
nCnvrtFlags |= OLE_STARMATH_2_MATHTYPE;
if ( rFilterOptions.IsWriter2WinWord() )
nCnvrtFlags |= OLE_STARWRITER_2_WINWORD;
if ( rFilterOptions.IsCalc2Excel() )
nCnvrtFlags |= OLE_STARCALC_2_EXCEL;
if ( rFilterOptions.IsImpress2PowerPoint() )
nCnvrtFlags |= OLE_STARIMPRESS_2_POWERPOINT;
if ( rFilterOptions.IsEnablePPTPreview() )
nCnvrtFlags |= 0x8000;
CreateStatusIndicator();
//OUString sBaseURI( "BaseURI");
std::vector< PropertyValue > aProperties;
PropertyValue aProperty;
aProperty.Name = "BaseURI";
aProperty.Value <<= mrMedium.GetBaseURL( true );
aProperties.push_back( aProperty );
bRet = PPTExport( aProperties, xStorRef, mxModel, mxStatusIndicator, pBas, nCnvrtFlags );
xStorRef->Commit();
}
}
return bRet;
}
void SdPPTFilter::PreSaveBasic()
{
const SvtFilterOptions& rFilterOptions = SvtFilterOptions::Get();
if( rFilterOptions.IsLoadPPointBasicStorage() )
{
#ifdef DISABLE_DYNLOADING
SaveVBAPointer pSaveVBA= SaveVBA;
#else
SaveVBAPointer pSaveVBA = reinterpret_cast< SaveVBAPointer >(
SdFilter::GetLibrarySymbol(mrMedium.GetFilter()->GetUserData(), "SaveVBA"));
#endif
if( pSaveVBA )
pSaveVBA( static_cast<SfxObjectShell&>(mrDocShell), pBas );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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