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, 909 insertions, 0 deletions

diff --git a/comphelper/source/misc/mimeconfighelper.cxx b/comphelper/source/misc/mimeconfighelper.cxx
new file mode 100644
index 000000000..7f402b635
--- /dev/null
+++ b/comphelper/source/misc/mimeconfighelper.cxx
@@ -0,0 +1,909 @@
+/* -*- 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 <com/sun/star/beans/PropertyValue.hpp>
+#include <com/sun/star/configuration/theDefaultProvider.hpp>
+#include <com/sun/star/container/XContainerQuery.hpp>
+#include <com/sun/star/container/XNameAccess.hpp>
+#include <com/sun/star/embed/VerbDescriptor.hpp>
+#include <com/sun/star/document/XTypeDetection.hpp>
+
+#include <osl/diagnose.h>
+
+#include <comphelper/fileformat.h>
+#include <comphelper/mimeconfighelper.hxx>
+#include <comphelper/classids.hxx>
+#include <comphelper/sequenceashashmap.hxx>
+#include <comphelper/documentconstants.hxx>
+#include <comphelper/propertysequence.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <utility>
+
+
+using namespace ::com::sun::star;
+using namespace comphelper;
+
+
+MimeConfigurationHelper::MimeConfigurationHelper( uno::Reference< uno::XComponentContext > xContext )
+: m_xContext(std::move( xContext ))
+{
+    if ( !m_xContext.is() )
+        throw uno::RuntimeException();
+}
+
+
+OUString MimeConfigurationHelper::GetStringClassIDRepresentation( const uno::Sequence< sal_Int8 >& aClassID )
+{
+    OUStringBuffer aResult;
+
+    if ( aClassID.getLength() == 16 )
+    {
+        for ( sal_Int32 nInd = 0; nInd < aClassID.getLength(); nInd++ )
+        {
+            if ( nInd == 4 || nInd == 6 || nInd == 8 || nInd == 10 )
+                aResult.append("-");
+
+            sal_Int32 nDigit1 = static_cast<sal_Int32>( static_cast<sal_uInt8>(aClassID[nInd]) / 16 );
+            sal_Int32 nDigit2 = static_cast<sal_uInt8>(aClassID[nInd]) % 16;
+            aResult.append( OUString::number(nDigit1, 16) + OUString::number( nDigit2, 16 ) );
+        }
+    }
+
+    return aResult.makeStringAndClear();
+}
+
+
+static sal_uInt8 GetDigit_Impl( char aChar )
+{
+    if ( aChar >= '0' && aChar <= '9' )
+        return aChar - '0';
+    else if ( aChar >= 'a' && aChar <= 'f' )
+        return aChar - 'a' + 10;
+    else if ( aChar >= 'A' && aChar <= 'F' )
+        return aChar - 'A' + 10;
+    else
+        return 16;
+}
+
+
+uno::Sequence< sal_Int8 > MimeConfigurationHelper::GetSequenceClassIDRepresentation( std::u16string_view aClassID )
+{
+    size_t nLength = aClassID.size();
+    if ( nLength == 36 )
+    {
+        OString aCharClassID = OUStringToOString( aClassID, RTL_TEXTENCODING_ASCII_US );
+        uno::Sequence< sal_Int8 > aResult( 16 );
+        auto pResult = aResult.getArray();
+
+        size_t nStrPointer = 0;
+        sal_Int32 nSeqInd = 0;
+        while( nSeqInd < 16 && nStrPointer + 1U < nLength )
+        {
+            sal_uInt8 nDigit1 = GetDigit_Impl( aCharClassID[nStrPointer++] );
+            sal_uInt8 nDigit2 = GetDigit_Impl( aCharClassID[nStrPointer++] );
+
+            if ( nDigit1 > 15 || nDigit2 > 15 )
+                break;
+
+            pResult[nSeqInd++] = static_cast<sal_Int8>( nDigit1 * 16 + nDigit2 );
+
+            if ( nStrPointer < nLength && aCharClassID[nStrPointer] == '-' )
+                nStrPointer++;
+        }
+
+        if ( nSeqInd == 16 && nStrPointer == nLength )
+            return aResult;
+    }
+
+    return uno::Sequence< sal_Int8 >();
+}
+
+
+uno::Reference< container::XNameAccess > MimeConfigurationHelper::GetConfigurationByPathImpl( const OUString& aPath )
+{
+    uno::Reference< container::XNameAccess > xConfig;
+
+    try
+    {
+        if ( !m_xConfigProvider.is() )
+            m_xConfigProvider = configuration::theDefaultProvider::get( m_xContext );
+
+        uno::Sequence<uno::Any> aArgs(comphelper::InitAnyPropertySequence(
+        {
+            {"nodepath", uno::Any(aPath)}
+        }));
+        xConfig.set( m_xConfigProvider->createInstanceWithArguments(
+                        "com.sun.star.configuration.ConfigurationAccess",
+                        aArgs ),
+                     uno::UNO_QUERY );
+    }
+    catch( uno::Exception& )
+    {}
+
+    return xConfig;
+}
+
+
+uno::Reference< container::XNameAccess > MimeConfigurationHelper::GetObjConfiguration()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if ( !m_xObjectConfig.is() )
+        m_xObjectConfig = GetConfigurationByPathImpl(
+                                         "/org.openoffice.Office.Embedding/Objects" );
+
+    return m_xObjectConfig;
+}
+
+
+uno::Reference< container::XNameAccess > MimeConfigurationHelper::GetVerbsConfiguration()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if ( !m_xVerbsConfig.is() )
+        m_xVerbsConfig = GetConfigurationByPathImpl(
+                                        "/org.openoffice.Office.Embedding/Verbs");
+
+    return m_xVerbsConfig;
+}
+
+
+uno::Reference< container::XNameAccess > MimeConfigurationHelper::GetMediaTypeConfiguration()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if ( !m_xMediaTypeConfig.is() )
+        m_xMediaTypeConfig = GetConfigurationByPathImpl(
+                    "/org.openoffice.Office.Embedding/MimeTypeClassIDRelations");
+
+    return m_xMediaTypeConfig;
+}
+
+
+uno::Reference< container::XNameAccess > MimeConfigurationHelper::GetFilterFactory()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if ( !m_xFilterFactory.is() )
+        m_xFilterFactory.set(
+            m_xContext->getServiceManager()->createInstanceWithContext("com.sun.star.document.FilterFactory", m_xContext),
+            uno::UNO_QUERY );
+
+    return m_xFilterFactory;
+}
+
+
+OUString MimeConfigurationHelper::GetDocServiceNameFromFilter( const OUString& aFilterName )
+{
+    OUString aDocServiceName;
+
+    try
+    {
+        uno::Reference< container::XNameAccess > xFilterFactory(
+            GetFilterFactory(),
+            uno::UNO_SET_THROW );
+
+        uno::Any aFilterAnyData = xFilterFactory->getByName( aFilterName );
+        uno::Sequence< beans::PropertyValue > aFilterData;
+        if ( aFilterAnyData >>= aFilterData )
+        {
+            for ( const auto & prop : std::as_const(aFilterData) )
+                if ( prop.Name == "DocumentService" )
+                    prop.Value >>= aDocServiceName;
+        }
+    }
+    catch( uno::Exception& )
+    {}
+
+    return aDocServiceName;
+}
+
+
+OUString MimeConfigurationHelper::GetDocServiceNameFromMediaType( const OUString& aMediaType )
+{
+    uno::Reference< container::XContainerQuery > xTypeCFG(
+            m_xContext->getServiceManager()->createInstanceWithContext("com.sun.star.document.TypeDetection", m_xContext),
+            uno::UNO_QUERY );
+
+    if ( xTypeCFG.is() )
+    {
+        try
+        {
+            // make query for all types matching the properties
+            uno::Sequence < beans::NamedValue > aSeq { { "MediaType", css::uno::Any(aMediaType) } };
+
+            uno::Reference < container::XEnumeration > xEnum = xTypeCFG->createSubSetEnumerationByProperties( aSeq );
+            while ( xEnum->hasMoreElements() )
+            {
+                uno::Sequence< beans::PropertyValue > aType;
+                if ( xEnum->nextElement() >>= aType )
+                {
+                    for ( const auto & prop : std::as_const(aType) )
+                    {
+                        OUString aFilterName;
+                        if ( prop.Name == "PreferredFilter"
+                          && ( prop.Value >>= aFilterName ) && !aFilterName.isEmpty() )
+                        {
+                            OUString aDocumentName = GetDocServiceNameFromFilter( aFilterName );
+                            if ( !aDocumentName.isEmpty() )
+                                return aDocumentName;
+                        }
+                    }
+                }
+            }
+        }
+        catch( uno::Exception& )
+        {}
+    }
+
+    return OUString();
+}
+
+
+bool MimeConfigurationHelper::GetVerbByShortcut( const OUString& aVerbShortcut,
+                                                embed::VerbDescriptor& aDescriptor )
+{
+    bool bResult = false;
+
+    uno::Reference< container::XNameAccess > xVerbsConfig = GetVerbsConfiguration();
+    uno::Reference< container::XNameAccess > xVerbsProps;
+    try
+    {
+        if ( xVerbsConfig.is() && ( xVerbsConfig->getByName( aVerbShortcut ) >>= xVerbsProps ) && xVerbsProps.is() )
+        {
+            embed::VerbDescriptor aTempDescr;
+            static constexpr OUStringLiteral sVerbID = u"VerbID";
+            static constexpr OUStringLiteral sVerbUIName = u"VerbUIName";
+            static constexpr OUStringLiteral sVerbFlags = u"VerbFlags";
+            static constexpr OUStringLiteral sVerbAttributes = u"VerbAttributes";
+            if ( ( xVerbsProps->getByName(sVerbID) >>= aTempDescr.VerbID )
+              && ( xVerbsProps->getByName(sVerbUIName) >>= aTempDescr.VerbName )
+              && ( xVerbsProps->getByName(sVerbFlags) >>= aTempDescr.VerbFlags )
+              && ( xVerbsProps->getByName(sVerbAttributes) >>= aTempDescr.VerbAttributes ) )
+            {
+                aDescriptor = aTempDescr;
+                bResult = true;
+            }
+        }
+    }
+    catch( uno::Exception& )
+    {
+    }
+
+    return bResult;
+}
+
+
+uno::Sequence< beans::NamedValue > MimeConfigurationHelper::GetObjPropsFromConfigEntry(
+                                            const uno::Sequence< sal_Int8 >& aClassID,
+                                            const uno::Reference< container::XNameAccess >& xObjectProps )
+{
+    uno::Sequence< beans::NamedValue > aResult;
+
+    if ( aClassID.getLength() == 16 )
+    {
+        try
+        {
+            const uno::Sequence< OUString > aObjPropNames = xObjectProps->getElementNames();
+
+            aResult.realloc( aObjPropNames.getLength() + 1 );
+            auto pResult = aResult.getArray();
+            pResult[0].Name = "ClassID";
+            pResult[0].Value <<= aClassID;
+
+            for ( sal_Int32 nInd = 0; nInd < aObjPropNames.getLength(); nInd++ )
+            {
+                pResult[nInd + 1].Name = aObjPropNames[nInd];
+
+                if ( aObjPropNames[nInd] == "ObjectVerbs" )
+                {
+                    uno::Sequence< OUString > aVerbShortcuts;
+                    if ( !(xObjectProps->getByName( aObjPropNames[nInd] ) >>= aVerbShortcuts) )
+                        throw uno::RuntimeException();
+                    uno::Sequence< embed::VerbDescriptor > aVerbDescriptors( aVerbShortcuts.getLength() );
+                    auto aVerbDescriptorsRange = asNonConstRange(aVerbDescriptors);
+                    for ( sal_Int32 nVerbI = 0; nVerbI < aVerbShortcuts.getLength(); nVerbI++ )
+                        if ( !GetVerbByShortcut( aVerbShortcuts[nVerbI], aVerbDescriptorsRange[nVerbI] ) )
+                            throw uno::RuntimeException();
+
+                    pResult[nInd+1].Value <<= aVerbDescriptors;
+                }
+                else
+                    pResult[nInd+1].Value = xObjectProps->getByName( aObjPropNames[nInd] );
+            }
+        }
+        catch( uno::Exception& )
+        {
+            aResult.realloc( 0 );
+        }
+    }
+
+    return aResult;
+}
+
+
+OUString MimeConfigurationHelper::GetExplicitlyRegisteredObjClassID( const OUString& aMediaType )
+{
+    OUString aStringClassID;
+
+    uno::Reference< container::XNameAccess > xMediaTypeConfig = GetMediaTypeConfiguration();
+    try
+    {
+        if ( xMediaTypeConfig.is() )
+            xMediaTypeConfig->getByName( aMediaType ) >>= aStringClassID;
+    }
+    catch( uno::Exception& )
+    {
+    }
+
+    return aStringClassID;
+
+}
+
+
+uno::Sequence< beans::NamedValue > MimeConfigurationHelper::GetObjectPropsByStringClassID(
+                                                                const OUString& aStringClassID )
+{
+    uno::Sequence< beans::NamedValue > aObjProps;
+
+    uno::Sequence< sal_Int8 > aClassID = GetSequenceClassIDRepresentation( aStringClassID );
+    if ( ClassIDsEqual( aClassID, GetSequenceClassID( SO3_DUMMY_CLASSID ) ) )
+    {
+        aObjProps = { { "ObjectFactory",
+                        uno::Any(OUString("com.sun.star.embed.OOoSpecialEmbeddedObjectFactory")) },
+                      { "ClassID", uno::Any(aClassID) } };
+        return aObjProps;
+    }
+
+    if ( aClassID.getLength() == 16 )
+    {
+        uno::Reference< container::XNameAccess > xObjConfig = GetObjConfiguration();
+        uno::Reference< container::XNameAccess > xObjectProps;
+        try
+        {
+            // TODO/LATER: allow to provide ClassID string in any format, only digits are counted
+            if ( xObjConfig.is() && ( xObjConfig->getByName( aStringClassID.toAsciiUpperCase() ) >>= xObjectProps ) && xObjectProps.is() )
+                aObjProps = GetObjPropsFromConfigEntry( aClassID, xObjectProps );
+        }
+        catch( uno::Exception& )
+        {
+        }
+    }
+
+    return aObjProps;
+}
+
+
+uno::Sequence< beans::NamedValue > MimeConfigurationHelper::GetObjectPropsByClassID(
+                                                                const uno::Sequence< sal_Int8 >& aClassID )
+{
+    uno::Sequence< beans::NamedValue > aObjProps;
+    if ( ClassIDsEqual( aClassID, GetSequenceClassID( SO3_DUMMY_CLASSID ) ) )
+    {
+        aObjProps = { { "ObjectFactory",
+                        uno::Any(OUString("com.sun.star.embed.OOoSpecialEmbeddedObjectFactory")) },
+                      { "ClassID", uno::Any(aClassID) } };
+    }
+
+    OUString aStringClassID = GetStringClassIDRepresentation( aClassID );
+    if ( !aStringClassID.isEmpty() )
+    {
+        uno::Reference< container::XNameAccess > xObjConfig = GetObjConfiguration();
+        uno::Reference< container::XNameAccess > xObjectProps;
+        try
+        {
+            if ( xObjConfig.is() && ( xObjConfig->getByName( aStringClassID.toAsciiUpperCase() ) >>= xObjectProps ) && xObjectProps.is() )
+                aObjProps = GetObjPropsFromConfigEntry( aClassID, xObjectProps );
+        }
+        catch( uno::Exception& )
+        {
+        }
+    }
+
+    return aObjProps;
+}
+
+
+uno::Sequence< beans::NamedValue > MimeConfigurationHelper::GetObjectPropsByMediaType( const OUString& aMediaType )
+{
+    uno::Sequence< beans::NamedValue > aObject =
+                                    GetObjectPropsByStringClassID( GetExplicitlyRegisteredObjClassID( aMediaType ) );
+    if ( aObject.hasElements() )
+        return aObject;
+
+    OUString aDocumentName = GetDocServiceNameFromMediaType( aMediaType );
+    if ( !aDocumentName.isEmpty() )
+        return GetObjectPropsByDocumentName( aDocumentName );
+
+    return uno::Sequence< beans::NamedValue >();
+}
+
+
+uno::Sequence< beans::NamedValue > MimeConfigurationHelper::GetObjectPropsByFilter( const OUString& aFilterName )
+{
+    OUString aDocumentName = GetDocServiceNameFromFilter( aFilterName );
+    if ( !aDocumentName.isEmpty() )
+        return GetObjectPropsByDocumentName( aDocumentName );
+
+    return uno::Sequence< beans::NamedValue >();
+}
+
+
+uno::Sequence< beans::NamedValue > MimeConfigurationHelper::GetObjectPropsByDocumentName( std::u16string_view aDocName )
+{
+    if ( !aDocName.empty() )
+    {
+        uno::Reference< container::XNameAccess > xObjConfig = GetObjConfiguration();
+        if ( xObjConfig.is() )
+        {
+            try
+            {
+                const uno::Sequence< OUString > aClassIDs = xObjConfig->getElementNames();
+                for ( const OUString & id : aClassIDs )
+                {
+                    uno::Reference< container::XNameAccess > xObjectProps;
+                    OUString aEntryDocName;
+
+                    if ( ( xObjConfig->getByName( id ) >>= xObjectProps ) && xObjectProps.is()
+                      && ( xObjectProps->getByName("ObjectDocumentServiceName") >>= aEntryDocName )
+                      && aEntryDocName == aDocName )
+                    {
+                        return GetObjPropsFromConfigEntry( GetSequenceClassIDRepresentation( id ),
+                                                            xObjectProps );
+                    }
+                }
+            }
+            catch( uno::Exception& )
+            {}
+        }
+    }
+
+    return uno::Sequence< beans::NamedValue >();
+}
+
+
+OUString MimeConfigurationHelper::GetFactoryNameByClassID( const uno::Sequence< sal_Int8 >& aClassID )
+{
+    return GetFactoryNameByStringClassID( GetStringClassIDRepresentation( aClassID ) );
+}
+
+
+OUString MimeConfigurationHelper::GetFactoryNameByStringClassID( const OUString& aStringClassID )
+{
+    OUString aResult;
+
+    if ( !aStringClassID.isEmpty() )
+    {
+        uno::Reference< container::XNameAccess > xObjConfig = GetObjConfiguration();
+        uno::Reference< container::XNameAccess > xObjectProps;
+        try
+        {
+            if ( xObjConfig.is() && ( xObjConfig->getByName( aStringClassID.toAsciiUpperCase() ) >>= xObjectProps ) && xObjectProps.is() )
+                xObjectProps->getByName("ObjectFactory") >>= aResult;
+        }
+        catch( uno::Exception& )
+        {
+            uno::Sequence< sal_Int8 > aClassID = GetSequenceClassIDRepresentation( aStringClassID );
+            if ( ClassIDsEqual( aClassID, GetSequenceClassID( SO3_DUMMY_CLASSID ) ) )
+                return "com.sun.star.embed.OOoSpecialEmbeddedObjectFactory";
+        }
+    }
+
+    return aResult;
+}
+
+
+OUString MimeConfigurationHelper::GetFactoryNameByDocumentName( std::u16string_view aDocName )
+{
+    OUString aResult;
+
+    if ( !aDocName.empty() )
+    {
+        uno::Reference< container::XNameAccess > xObjConfig = GetObjConfiguration();
+        if ( xObjConfig.is() )
+        {
+            try
+            {
+                const uno::Sequence< OUString > aClassIDs = xObjConfig->getElementNames();
+                for ( const OUString & id : aClassIDs )
+                {
+                    uno::Reference< container::XNameAccess > xObjectProps;
+                    OUString aEntryDocName;
+
+                    if ( ( xObjConfig->getByName( id ) >>= xObjectProps ) && xObjectProps.is()
+                      && ( xObjectProps->getByName( "ObjectDocumentServiceName" ) >>= aEntryDocName )
+                      && aEntryDocName == aDocName )
+                    {
+                        xObjectProps->getByName("ObjectFactory") >>= aResult;
+                        break;
+                    }
+                }
+            }
+            catch( uno::Exception& )
+            {}
+        }
+    }
+
+    return aResult;
+}
+
+
+OUString MimeConfigurationHelper::GetFactoryNameByMediaType( const OUString& aMediaType )
+{
+    OUString aResult = GetFactoryNameByStringClassID( GetExplicitlyRegisteredObjClassID( aMediaType ) );
+
+    if ( aResult.isEmpty() )
+    {
+        OUString aDocumentName = GetDocServiceNameFromMediaType( aMediaType );
+        if ( !aDocumentName.isEmpty() )
+            aResult = GetFactoryNameByDocumentName( aDocumentName );
+    }
+
+    return aResult;
+}
+
+
+OUString MimeConfigurationHelper::UpdateMediaDescriptorWithFilterName(
+                                        uno::Sequence< beans::PropertyValue >& aMediaDescr,
+                                        bool bIgnoreType )
+{
+    OUString aFilterName;
+
+    for ( const auto & prop : std::as_const(aMediaDescr) )
+        if ( prop.Name == "FilterName" )
+            prop.Value >>= aFilterName;
+
+    if ( aFilterName.isEmpty() )
+    {
+        // filter name is not specified, so type detection should be done
+
+        uno::Reference< document::XTypeDetection > xTypeDetection(
+                m_xContext->getServiceManager()->createInstanceWithContext("com.sun.star.document.TypeDetection", m_xContext),
+                uno::UNO_QUERY_THROW );
+
+        // typedetection can change the mode, add a stream and so on, thus a copy should be used
+        uno::Sequence< beans::PropertyValue > aTempMD( aMediaDescr );
+
+        // get TypeName
+        OUString aTypeName = xTypeDetection->queryTypeByDescriptor( aTempMD, true );
+
+        // get FilterName
+        for ( const auto & prop : std::as_const(aTempMD) )
+            if ( prop.Name == "FilterName" )
+                prop.Value >>= aFilterName;
+
+        if ( !aFilterName.isEmpty() )
+        {
+            sal_Int32 nOldLen = aMediaDescr.getLength();
+            aMediaDescr.realloc( nOldLen + 1 );
+            auto pMediaDescr = aMediaDescr.getArray();
+            pMediaDescr[nOldLen].Name = "FilterName";
+            pMediaDescr[ nOldLen ].Value <<= aFilterName;
+
+        }
+        else if ( !aTypeName.isEmpty() && !bIgnoreType )
+        {
+            uno::Reference< container::XNameAccess > xNameAccess( xTypeDetection, uno::UNO_QUERY );
+            uno::Sequence< beans::PropertyValue > aTypes;
+
+            if ( xNameAccess.is() && ( xNameAccess->getByName( aTypeName ) >>= aTypes ) )
+            {
+                for ( const auto & prop : std::as_const(aTypes) )
+                {
+                    if ( prop.Name == "PreferredFilter" && ( prop.Value >>= aFilterName ) )
+                    {
+                        sal_Int32 nOldLen = aMediaDescr.getLength();
+                        aMediaDescr.realloc( nOldLen + 1 );
+                        auto pMediaDescr = aMediaDescr.getArray();
+                        pMediaDescr[nOldLen].Name = "FilterName";
+                        pMediaDescr[ nOldLen ].Value = prop.Value;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    return aFilterName;
+}
+
+OUString MimeConfigurationHelper::UpdateMediaDescriptorWithFilterName(
+                        uno::Sequence< beans::PropertyValue >& aMediaDescr,
+                        uno::Sequence< beans::NamedValue >& aObject )
+{
+    OUString aDocName;
+    for ( const auto & nv : std::as_const(aObject) )
+        if ( nv.Name == "ObjectDocumentServiceName" )
+        {
+            nv.Value >>= aDocName;
+            break;
+        }
+
+    OSL_ENSURE( !aDocName.isEmpty(), "The name must exist at this point!" );
+
+
+    bool bNeedsAddition = true;
+    for ( sal_Int32 nMedInd = 0; nMedInd < aMediaDescr.getLength(); nMedInd++ )
+        if ( aMediaDescr[nMedInd].Name == "DocumentService" )
+        {
+            aMediaDescr.getArray()[nMedInd].Value <<= aDocName;
+            bNeedsAddition = false;
+            break;
+        }
+
+    if ( bNeedsAddition )
+    {
+        sal_Int32 nOldLen = aMediaDescr.getLength();
+        aMediaDescr.realloc( nOldLen + 1 );
+        auto pMediaDescr = aMediaDescr.getArray();
+        pMediaDescr[nOldLen].Name = "DocumentService";
+        pMediaDescr[nOldLen].Value <<= aDocName;
+    }
+
+    return UpdateMediaDescriptorWithFilterName( aMediaDescr, true );
+}
+
+#ifdef _WIN32
+
+SfxFilterFlags MimeConfigurationHelper::GetFilterFlags( const OUString& aFilterName )
+{
+    SfxFilterFlags nFlags = SfxFilterFlags::NONE;
+    try
+    {
+        if ( !aFilterName.isEmpty() )
+        {
+            uno::Reference< container::XNameAccess > xFilterFactory(
+                GetFilterFactory(),
+                uno::UNO_SET_THROW );
+
+            uno::Any aFilterAny = xFilterFactory->getByName( aFilterName );
+            uno::Sequence< beans::PropertyValue > aData;
+            if ( aFilterAny >>= aData )
+            {
+                SequenceAsHashMap aFilterHM( aData );
+                nFlags = static_cast<SfxFilterFlags>(aFilterHM.getUnpackedValueOrDefault( "Flags", sal_Int32(0) ));
+            }
+        }
+    } catch( uno::Exception& )
+    {}
+
+    return nFlags;
+}
+
+bool MimeConfigurationHelper::AddFilterNameCheckOwnFile(
+                        uno::Sequence< beans::PropertyValue >& aMediaDescr )
+{
+    OUString aFilterName = UpdateMediaDescriptorWithFilterName( aMediaDescr, false );
+    if ( !aFilterName.isEmpty() )
+    {
+        SfxFilterFlags nFlags = GetFilterFlags( aFilterName );
+        // check the OWN flag
+        return bool(nFlags & SfxFilterFlags::OWN);
+    }
+
+    return false;
+}
+
+#endif
+
+OUString MimeConfigurationHelper::GetDefaultFilterFromServiceName( const OUString& aServiceName, sal_Int32 nVersion )
+{
+    OUString aResult;
+
+    if ( !aServiceName.isEmpty() && nVersion )
+        try
+        {
+            uno::Reference< container::XContainerQuery > xFilterQuery(
+                GetFilterFactory(),
+                uno::UNO_QUERY_THROW );
+
+            uno::Sequence< beans::NamedValue > aSearchRequest
+            {
+                { "DocumentService", css::uno::Any(aServiceName) },
+                { "FileFormatVersion", css::uno::Any(nVersion) }
+            };
+
+            uno::Reference< container::XEnumeration > xFilterEnum =
+                                            xFilterQuery->createSubSetEnumerationByProperties( aSearchRequest );
+
+            // use the first filter that is found
+            if ( xFilterEnum.is() )
+                while ( xFilterEnum->hasMoreElements() )
+                {
+                    uno::Sequence< beans::PropertyValue > aProps;
+                    if ( xFilterEnum->nextElement() >>= aProps )
+                    {
+                        SfxFilterFlags nFlags = SfxFilterFlags::NONE;
+                        OUString sName;
+                        for (const auto & rPropVal : aProps)
+                        {
+                            if (rPropVal.Name == "Flags")
+                            {
+                                sal_Int32 nTmp(0);
+                                if (rPropVal.Value >>= nTmp)
+                                    nFlags = static_cast<SfxFilterFlags>(nTmp);
+                            }
+                            else if (rPropVal.Name == "Name")
+                                rPropVal.Value >>= sName;
+                        }
+
+                        // that should be import, export, own filter and not a template filter ( TemplatePath flag )
+                        SfxFilterFlags const nRequired = SfxFilterFlags::OWN
+                            // fdo#78159 for OOoXML, there is code to convert
+                            // to ODF in OCommonEmbeddedObject::store*
+                            // so accept it even though there's no export
+                            | (SOFFICE_FILEFORMAT_60 == nVersion ? SfxFilterFlags::NONE : SfxFilterFlags::EXPORT)
+                            | SfxFilterFlags::IMPORT;
+                        if ( ( ( nFlags & nRequired ) == nRequired ) && !( nFlags & SfxFilterFlags::TEMPLATEPATH ) )
+                        {
+                            // if there are more than one filter the preferred one should be used
+                            // if there is no preferred filter the first one will be used
+                            if ( aResult.isEmpty() || ( nFlags & SfxFilterFlags::PREFERED ) )
+                                aResult = sName;
+                            if ( nFlags & SfxFilterFlags::PREFERED )
+                                break; // the preferred filter was found
+                        }
+                    }
+                }
+        }
+        catch( uno::Exception& )
+        {}
+
+    return aResult;
+}
+
+
+OUString MimeConfigurationHelper::GetExportFilterFromImportFilter( const OUString& aImportFilterName )
+{
+    OUString aExportFilterName;
+
+    try
+    {
+        if ( !aImportFilterName.isEmpty() )
+        {
+            uno::Reference< container::XNameAccess > xFilterFactory(
+                GetFilterFactory(),
+                uno::UNO_SET_THROW );
+
+            uno::Any aImpFilterAny = xFilterFactory->getByName( aImportFilterName );
+            uno::Sequence< beans::PropertyValue > aImpData;
+            if ( aImpFilterAny >>= aImpData )
+            {
+                SequenceAsHashMap aImpFilterHM( aImpData );
+                SfxFilterFlags nFlags = static_cast<SfxFilterFlags>(aImpFilterHM.getUnpackedValueOrDefault( "Flags", sal_Int32(0) ));
+
+                if ( !( nFlags & SfxFilterFlags::IMPORT ) )
+                {
+                    OSL_FAIL( "This is no import filter!" );
+                    throw uno::Exception("this is no import filter", nullptr);
+                }
+
+                if ( nFlags & SfxFilterFlags::EXPORT )
+                {
+                    aExportFilterName = aImportFilterName;
+                }
+                else
+                {
+                    OUString aDocumentServiceName = aImpFilterHM.getUnpackedValueOrDefault( "DocumentService", OUString() );
+                    OUString aTypeName = aImpFilterHM.getUnpackedValueOrDefault( "Type", OUString() );
+
+                    OSL_ENSURE( !aDocumentServiceName.isEmpty() && !aTypeName.isEmpty(), "Incomplete filter data!" );
+                    if ( !(aDocumentServiceName.isEmpty() || aTypeName.isEmpty()) )
+                    {
+                        uno::Sequence< beans::NamedValue > aSearchRequest
+                        {
+                            { "Type", css::uno::Any(aTypeName) },
+                            { "DocumentService", css::uno::Any(aDocumentServiceName) }
+                        };
+
+                        uno::Sequence< beans::PropertyValue > aExportFilterProps = SearchForFilter(
+                            uno::Reference< container::XContainerQuery >( xFilterFactory, uno::UNO_QUERY_THROW ),
+                            aSearchRequest,
+                            SfxFilterFlags::EXPORT,
+                            SfxFilterFlags::INTERNAL );
+
+                        if ( aExportFilterProps.hasElements() )
+                        {
+                            SequenceAsHashMap aExpPropsHM( aExportFilterProps );
+                            aExportFilterName = aExpPropsHM.getUnpackedValueOrDefault( "Name", OUString() );
+                        }
+                    }
+                }
+            }
+        }
+    }
+    catch( uno::Exception& )
+    {}
+
+    return aExportFilterName;
+}
+
+
+// static
+uno::Sequence< beans::PropertyValue > MimeConfigurationHelper::SearchForFilter(
+                                                        const uno::Reference< container::XContainerQuery >& xFilterQuery,
+                                                        const uno::Sequence< beans::NamedValue >& aSearchRequest,
+                                                        SfxFilterFlags nMustFlags,
+                                                        SfxFilterFlags nDontFlags )
+{
+    uno::Sequence< beans::PropertyValue > aFilterProps;
+    uno::Reference< container::XEnumeration > xFilterEnum =
+                                            xFilterQuery->createSubSetEnumerationByProperties( aSearchRequest );
+
+    // the first default filter will be taken,
+    // if there is no filter with flag default the first acceptable filter will be taken
+    if ( xFilterEnum.is() )
+    {
+        while ( xFilterEnum->hasMoreElements() )
+        {
+            uno::Sequence< beans::PropertyValue > aProps;
+            if ( xFilterEnum->nextElement() >>= aProps )
+            {
+                SequenceAsHashMap aPropsHM( aProps );
+                SfxFilterFlags nFlags = static_cast<SfxFilterFlags>(aPropsHM.getUnpackedValueOrDefault("Flags",
+                                                                        sal_Int32(0) ));
+                if ( ( ( nFlags & nMustFlags ) == nMustFlags ) && !( nFlags & nDontFlags ) )
+                {
+                    if ( ( nFlags & SfxFilterFlags::DEFAULT ) == SfxFilterFlags::DEFAULT )
+                    {
+                        aFilterProps = aProps;
+                        break;
+                    }
+                    else if ( !aFilterProps.hasElements() )
+                        aFilterProps = aProps;
+                }
+            }
+        }
+    }
+
+    return aFilterProps;
+}
+
+
+bool MimeConfigurationHelper::ClassIDsEqual( const uno::Sequence< sal_Int8 >& aClassID1, const uno::Sequence< sal_Int8 >& aClassID2 )
+{
+    return aClassID1 == aClassID2;
+}
+
+
+uno::Sequence< sal_Int8 > MimeConfigurationHelper::GetSequenceClassID( sal_uInt32 n1, sal_uInt16 n2, sal_uInt16 n3,
+                                                sal_uInt8 b8, sal_uInt8 b9, sal_uInt8 b10, sal_uInt8 b11,
+                                                sal_uInt8 b12, sal_uInt8 b13, sal_uInt8 b14, sal_uInt8 b15 )
+{
+    uno::Sequence< sal_Int8 > aResult{ /* [ 0] */ static_cast<sal_Int8>( n1 >> 24 ),
+                                       /* [ 1] */ static_cast<sal_Int8>( ( n1 << 8 ) >> 24 ),
+                                       /* [ 2] */ static_cast<sal_Int8>( ( n1 << 16 ) >> 24 ),
+                                       /* [ 3] */ static_cast<sal_Int8>( ( n1 << 24 ) >> 24 ),
+                                       /* [ 4] */ static_cast<sal_Int8>( n2 >> 8 ),
+                                       /* [ 5] */ static_cast<sal_Int8>( ( n2 << 8 ) >> 8 ),
+                                       /* [ 6] */ static_cast<sal_Int8>( n3 >> 8 ),
+                                       /* [ 7] */ static_cast<sal_Int8>( ( n3 << 8 ) >> 8 ),
+                                       /* [ 8] */ static_cast<sal_Int8>( b8 ),
+                                       /* [ 9] */ static_cast<sal_Int8>( b9 ),
+                                       /* [10] */ static_cast<sal_Int8>( b10 ),
+                                       /* [11] */ static_cast<sal_Int8>( b11 ),
+                                       /* [12] */ static_cast<sal_Int8>( b12 ),
+                                       /* [13] */ static_cast<sal_Int8>( b13 ),
+                                       /* [14] */ static_cast<sal_Int8>( b14 ),
+                                       /* [15] */ static_cast<sal_Int8>( b15 ) };
+
+    return aResult;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */