Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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: */