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Diffstat (limited to 'sd/source/filter/sdpptwrp.cxx')
-rw-r--r-- | sd/source/filter/sdpptwrp.cxx | 377 |
1 files changed, 377 insertions, 0 deletions
diff --git a/sd/source/filter/sdpptwrp.cxx b/sd/source/filter/sdpptwrp.cxx new file mode 100644 index 000000000..59829f854 --- /dev/null +++ b/sd/source/filter/sdpptwrp.cxx @@ -0,0 +1,377 @@ +/* -*- 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()) + { + tools::SvRef<SotStorage> xSubStorage = pStorage->OpenSotStorage(aElement.GetName(), StreamMode::STD_READ | StreamMode::SHARE_DENYALL); + lcl_getListOfStreams(xSubStorage.get(), 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(const SfxMedium& rMedium, const 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, Any(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; + } + if (pStorage->IsContained("\011DRMContent")) + { + // Document is DRM encrypted + pStorage = lcl_DRMDecrypt(mrMedium, pStorage, aDecryptedStorageStrm); + } + tools::SvRef<SotStorageStream> 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() ) + { +#ifdef DISABLE_DYNLOADING + ExportPPTPointer PPTExport = ExportPPT; +#else + ExportPPTPointer PPTExport = reinterpret_cast< ExportPPTPointer >( + SdFilter::GetLibrarySymbol(mrMedium.GetFilter()->GetUserData(), "ExportPPT")); +#endif + + if( PPTExport) + { + 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 ); + + SvStream * pOutputStrm = mrMedium.GetOutStream(); + + Sequence< NamedValue > aEncryptionData; + Reference< css::packages::XPackageEncryption > xPackageEncryption; + const SfxUnoAnyItem* pEncryptionDataItem = SfxItemSet::GetItem<SfxUnoAnyItem>(mrMedium.GetItemSet(), SID_ENCRYPTIONDATA, false); + std::shared_ptr<SvStream> pMediaStrm; + if (pEncryptionDataItem && (pEncryptionDataItem->GetValue() >>= aEncryptionData)) + { + ::comphelper::SequenceAsHashMap aHashData(aEncryptionData); + OUString sCryptoType = aHashData.getUnpackedValueOrDefault("CryptoType", OUString()); + + if (sCryptoType.getLength()) + { + Reference<XComponentContext> xComponentContext(comphelper::getProcessComponentContext()); + Sequence<Any> aArguments{ + Any(NamedValue("Binary", Any(true))) }; + xPackageEncryption.set( + xComponentContext->getServiceManager()->createInstanceWithArgumentsAndContext( + "com.sun.star.comp.oox.crypto." + sCryptoType, aArguments, xComponentContext), UNO_QUERY); + + if (xPackageEncryption.is()) + { + // We have an encryptor. Export document into memory stream and encrypt it later + pMediaStrm = std::make_shared<SvMemoryStream>(); + pOutputStrm = pMediaStrm.get(); + + // Temp removal of EncryptionData to avoid password protection triggering + mrMedium.GetItemSet()->ClearItem(SID_ENCRYPTIONDATA); + } + } + } + + tools::SvRef<SotStorage> xStorRef = new SotStorage(pOutputStrm, false); + + if (xStorRef.is()) + { + bRet = PPTExport(aProperties, xStorRef, mxModel, mxStatusIndicator, pBas, nCnvrtFlags); + xStorRef->Commit(); + + if (xPackageEncryption.is()) + { + // Perform DRM encryption + pOutputStrm->Seek(0); + + xPackageEncryption->setupEncryption(aEncryptionData); + + Reference<css::io::XInputStream > xInputStream(new utl::OSeekableInputStreamWrapper(pOutputStrm, false)); + Sequence<NamedValue> aStreams = xPackageEncryption->encrypt(xInputStream); + + tools::SvRef<SotStorage> xEncryptedRootStrg = new SotStorage(mrMedium.GetOutStream(), false); + for (const NamedValue & aStreamData : std::as_const(aStreams)) + { + // To avoid long paths split and open substorages recursively + // Splitting paths manually, since comphelper::string::split is trimming special characters like \0x01, \0x09 + tools::SvRef<SotStorage> pStorage = xEncryptedRootStrg.get(); + OUString sFileName; + sal_Int32 idx = 0; + do + { + OUString sPathElem = aStreamData.Name.getToken(0, L'/', idx); + if (!sPathElem.isEmpty()) + { + if (idx < 0) + { + sFileName = sPathElem; + } + else + { + pStorage = pStorage->OpenSotStorage(sPathElem); + } + } + } while (pStorage && idx >= 0); + + if (!pStorage) + { + bRet = false; + break; + } + + tools::SvRef<SotStorageStream> pStream = pStorage->OpenSotStream(sFileName); + if (!pStream) + { + bRet = false; + break; + } + Sequence<sal_Int8> aStreamContent; + aStreamData.Value >>= aStreamContent; + size_t nBytesWritten = pStream->WriteBytes(aStreamContent.getConstArray(), aStreamContent.getLength()); + if (nBytesWritten != static_cast<size_t>(aStreamContent.getLength())) + { + bRet = false; + break; + } + } + xEncryptedRootStrg->Commit(); + + // Restore encryption data + mrMedium.GetItemSet()->Put(SfxUnoAnyItem(SID_ENCRYPTIONDATA, Any(aEncryptionData))); + } + } + } + } + + 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: */ |