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| -rw-r--r-- | embeddedobj/source/general/xcreator.cxx | 413 |
1 files changed, 413 insertions, 0 deletions
diff --git a/embeddedobj/source/general/xcreator.cxx b/embeddedobj/source/general/xcreator.cxx new file mode 100644 index 000000000..c4a8635e4 --- /dev/null +++ b/embeddedobj/source/general/xcreator.cxx @@ -0,0 +1,413 @@ +/* -*- 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/embed/ElementModes.hpp> +#include <com/sun/star/embed/EntryInitModes.hpp> +#include <com/sun/star/embed/XEmbedObjectFactory.hpp> +#include <com/sun/star/embed/OOoEmbeddedObjectFactory.hpp> +#include <com/sun/star/embed/OLEEmbeddedObjectFactory.hpp> +#include <com/sun/star/beans/PropertyValue.hpp> +#include <com/sun/star/beans/XPropertySet.hpp> +#include <com/sun/star/container/XNameAccess.hpp> +#include <com/sun/star/lang/XComponent.hpp> + +#include <cppuhelper/supportsservice.hxx> +#include <cppuhelper/weak.hxx> +#include <comphelper/documentconstants.hxx> +#include <officecfg/Office/Common.hxx> + +#include <xcreator.hxx> +#include <dummyobject.hxx> + + +using namespace ::com::sun::star; + +uno::Reference< uno::XInterface > SAL_CALL UNOEmbeddedObjectCreator::createInstanceInitNew( + const uno::Sequence< sal_Int8 >& aClassID, + const OUString& aClassName, + const uno::Reference< embed::XStorage >& xStorage, + const OUString& sEntName, + const uno::Sequence< beans::PropertyValue >& lObjArgs ) +{ + if ( !xStorage.is() ) + throw lang::IllegalArgumentException( "No parent storage is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 3 ); + + if ( sEntName.isEmpty() ) + throw lang::IllegalArgumentException( "Empty element name is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 4 ); + + OUString aEmbedFactory = m_aConfigHelper.GetFactoryNameByClassID( aClassID ); + if ( aEmbedFactory.isEmpty() ) + { + // use system fallback + // TODO: in future users factories can be tested + aEmbedFactory = "com.sun.star.embed.OLEEmbeddedObjectFactory"; + } + + uno::Reference < uno::XInterface > xFact( m_xContext->getServiceManager()->createInstanceWithContext(aEmbedFactory, m_xContext) ); + uno::Reference< embed::XEmbedObjectCreator > xEmbCreator( xFact, uno::UNO_QUERY ); + if ( xEmbCreator.is() ) + return xEmbCreator->createInstanceInitNew( aClassID, aClassName, xStorage, sEntName, lObjArgs ); + + uno::Reference < embed::XEmbedObjectFactory > xEmbFact( xFact, uno::UNO_QUERY_THROW ); + return xEmbFact->createInstanceUserInit( aClassID, aClassName, xStorage, sEntName, embed::EntryInitModes::TRUNCATE_INIT, uno::Sequence < beans::PropertyValue >(), lObjArgs); +} + + +uno::Reference< uno::XInterface > SAL_CALL UNOEmbeddedObjectCreator::createInstanceInitFromEntry( + const uno::Reference< embed::XStorage >& xStorage, + const OUString& sEntName, + const uno::Sequence< beans::PropertyValue >& aMedDescr, + const uno::Sequence< beans::PropertyValue >& lObjArgs ) +{ + if ( !xStorage.is() ) + throw lang::IllegalArgumentException( "No parent storage is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 1 ); + + if ( sEntName.isEmpty() ) + throw lang::IllegalArgumentException( "Empty element name is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 2 ); + + uno::Reference< container::XNameAccess > xNameAccess( xStorage, uno::UNO_QUERY_THROW ); + + // detect entry existence + if ( !xNameAccess->hasByName( sEntName ) ) + throw container::NoSuchElementException(); + + OUString aMediaType; + OUString aEmbedFactory; + if ( xStorage->isStorageElement( sEntName ) ) + { + // the object must be based on storage + uno::Reference< embed::XStorage > xSubStorage = + xStorage->openStorageElement( sEntName, embed::ElementModes::READ ); + + uno::Reference< beans::XPropertySet > xPropSet( xSubStorage, uno::UNO_QUERY_THROW ); + + try { + uno::Any aAny = xPropSet->getPropertyValue("MediaType"); + aAny >>= aMediaType; + } + catch ( const uno::Exception& ) + { + } + + try { + if ( xSubStorage.is() ) + xSubStorage->dispose(); + } + catch ( const uno::Exception& ) + { + } + } + else + { + // the object must be based on stream + // it means for now that this is an OLE object + + // the object will be created as embedded object + // after it is loaded it can detect that it is a link + + uno::Reference< io::XStream > xSubStream = + xStorage->openStreamElement( sEntName, embed::ElementModes::READ ); + + uno::Reference< beans::XPropertySet > xPropSet( xSubStream, uno::UNO_QUERY_THROW ); + + try { + uno::Any aAny = xPropSet->getPropertyValue("MediaType"); + aAny >>= aMediaType; + if ( aMediaType == "application/vnd.sun.star.oleobject" ) + aEmbedFactory = "com.sun.star.embed.OLEEmbeddedObjectFactory"; + } + catch ( const uno::Exception& ) + { + } + + try { + uno::Reference< lang::XComponent > xComp( xSubStream, uno::UNO_QUERY ); + if ( xComp.is() ) + xComp->dispose(); + } + catch ( const uno::Exception& ) + { + } + } + + OSL_ENSURE( !aMediaType.isEmpty(), "No media type is specified for the object!" ); + if ( !aMediaType.isEmpty() && aEmbedFactory.isEmpty() ) + { + aEmbedFactory = m_aConfigHelper.GetFactoryNameByMediaType( aMediaType ); + + // If no factory is found, fall back to the FileFormatVersion=6200 filter, Base only has that. + if (aEmbedFactory.isEmpty() && aMediaType == MIMETYPE_OASIS_OPENDOCUMENT_DATABASE_ASCII) + aEmbedFactory = m_aConfigHelper.GetFactoryNameByMediaType(MIMETYPE_VND_SUN_XML_BASE_ASCII); + } + + if ( !aEmbedFactory.isEmpty() ) + { + uno::Reference< uno::XInterface > xFact = m_xContext->getServiceManager()->createInstanceWithContext(aEmbedFactory, m_xContext); + + uno::Reference< embed::XEmbedObjectCreator > xEmbCreator( xFact, uno::UNO_QUERY ); + if ( xEmbCreator.is() ) + return xEmbCreator->createInstanceInitFromEntry( xStorage, sEntName, aMedDescr, lObjArgs ); + + uno::Reference < embed::XEmbedObjectFactory > xEmbFact( xFact, uno::UNO_QUERY ); + if ( xEmbFact.is() ) + return xEmbFact->createInstanceUserInit( uno::Sequence< sal_Int8 >(), OUString(), xStorage, sEntName, embed::EntryInitModes::DEFAULT_INIT, aMedDescr, lObjArgs); + } + + // the default object should be created, it will allow to store the contents on the next saving + uno::Reference< uno::XInterface > xResult( static_cast< cppu::OWeakObject* >( new ODummyEmbeddedObject() ) ); + uno::Reference< embed::XEmbedPersist > xPersist( xResult, uno::UNO_QUERY_THROW ); + xPersist->setPersistentEntry( xStorage, sEntName, embed::EntryInitModes::DEFAULT_INIT, aMedDescr, lObjArgs ); + return xResult; +} + +/** + * Decides if rFilter should be used to load data into a doc model or real OLE embedding should + * happen. Empty return value means the later. + */ +static OUString HandleFilter(const OUString& rFilter) +{ + OUString aRet = rFilter; + + if (!officecfg::Office::Common::Filter::Microsoft::Import::WinWordToWriter::get()) + { + if (rFilter == "MS Word 97" || rFilter == "MS Word 2007 XML") + { + aRet.clear(); + } + } + + if (!officecfg::Office::Common::Filter::Microsoft::Import::ExcelToCalc::get()) + { + if (rFilter == "MS Excel 97" || rFilter == "Calc MS Excel 2007 XML") + { + aRet.clear(); + } + } + if (!officecfg::Office::Common::Filter::Microsoft::Import::PowerPointToImpress::get()) + { + if (rFilter == "MS PowerPoint 97" || rFilter == "Impress MS PowerPoint 2007 XML") + { + aRet.clear(); + } + } + if (!officecfg::Office::Common::Filter::Microsoft::Import::VisioToDraw::get()) + { + if (rFilter == "Visio Document") + { + aRet.clear(); + } + } + if (!officecfg::Office::Common::Filter::Adobe::Import::PDFToDraw::get()) + { + if (rFilter == "draw_pdf_import") + { + aRet.clear(); + } + } + + return aRet; +} + +uno::Reference< uno::XInterface > SAL_CALL UNOEmbeddedObjectCreator::createInstanceInitFromMediaDescriptor( + const uno::Reference< embed::XStorage >& xStorage, + const OUString& sEntName, + const uno::Sequence< beans::PropertyValue >& aMediaDescr, + const uno::Sequence< beans::PropertyValue >& lObjArgs ) +{ + // TODO: use lObjArgs + + if ( !xStorage.is() ) + throw lang::IllegalArgumentException( "No parent storage is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 1 ); + + if ( sEntName.isEmpty() ) + throw lang::IllegalArgumentException( "Empty element name is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 2 ); + + uno::Reference< uno::XInterface > xResult; + uno::Sequence< beans::PropertyValue > aTempMedDescr( aMediaDescr ); + + // check if there is FilterName + OUString aFilterName = m_aConfigHelper.UpdateMediaDescriptorWithFilterName( aTempMedDescr, false ); + + aFilterName = HandleFilter(aFilterName); + + if ( !aFilterName.isEmpty() ) + { + // the object can be loaded by one of the office application + uno::Reference< embed::XEmbeddedObjectCreator > xOOoEmbCreator = + embed::OOoEmbeddedObjectFactory::create( m_xContext ); + + xResult = xOOoEmbCreator->createInstanceInitFromMediaDescriptor( xStorage, + sEntName, + aTempMedDescr, + lObjArgs ); + } + else + { + // must be an OLE object + + // TODO: in future, when more object types are possible this place seems + // to be a weak one, probably configuration must provide a type detection service + // for every factory, so any file could go through services until it is recognized + // or there is no more services + // Or for example the typename can be used to detect object type if typedetection + // was also extended. + + uno::Reference< embed::XEmbeddedObjectCreator > xOleEmbCreator = + embed::OLEEmbeddedObjectFactory::create( m_xContext ); + + xResult = xOleEmbCreator->createInstanceInitFromMediaDescriptor( xStorage, sEntName, aTempMedDescr, lObjArgs ); + } + + return xResult; +} + + +uno::Reference< uno::XInterface > SAL_CALL UNOEmbeddedObjectCreator::createInstanceUserInit( + const uno::Sequence< sal_Int8 >& aClassID, + const OUString& sClassName, + const uno::Reference< embed::XStorage >& xStorage, + const OUString& sEntName, + sal_Int32 nEntryConnectionMode, + const uno::Sequence< beans::PropertyValue >& aArgs, + const uno::Sequence< beans::PropertyValue >& aObjectArgs ) +{ + if ( !xStorage.is() ) + throw lang::IllegalArgumentException( "No parent storage is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 3 ); + + if ( sEntName.isEmpty() ) + throw lang::IllegalArgumentException( "Empty element name is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 4 ); + + OUString aEmbedFactory = m_aConfigHelper.GetFactoryNameByClassID( aClassID ); + uno::Reference< embed::XEmbedObjectFactory > xEmbFactory( + m_xContext->getServiceManager()->createInstanceWithContext(aEmbedFactory, m_xContext), + uno::UNO_QUERY_THROW ); + + return xEmbFactory->createInstanceUserInit( aClassID, + sClassName, + xStorage, + sEntName, + nEntryConnectionMode, + aArgs, + aObjectArgs ); +} + + +uno::Reference< uno::XInterface > SAL_CALL UNOEmbeddedObjectCreator::createInstanceLink( + const uno::Reference< embed::XStorage >& xStorage, + const OUString& sEntName, + const uno::Sequence< beans::PropertyValue >& aMediaDescr, + const uno::Sequence< beans::PropertyValue >& lObjArgs ) +{ + uno::Reference< uno::XInterface > xResult; + + uno::Sequence< beans::PropertyValue > aTempMedDescr( aMediaDescr ); + + // check if there is URL, URL must exist + OUString aURL; + for ( beans::PropertyValue const & prop : std::as_const(aTempMedDescr) ) + if ( prop.Name == "URL" ) + prop.Value >>= aURL; + + if ( aURL.isEmpty() ) + throw lang::IllegalArgumentException( "No URL for the link is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 3 ); + + OUString aFilterName = m_aConfigHelper.UpdateMediaDescriptorWithFilterName( aTempMedDescr, false ); + + if ( !aFilterName.isEmpty() ) + { + // the object can be loaded by one of the office application + uno::Reference< embed::XEmbeddedObjectCreator > xOOoLinkCreator = + embed::OOoEmbeddedObjectFactory::create( m_xContext ); + + xResult = xOOoLinkCreator->createInstanceLink( xStorage, + sEntName, + aTempMedDescr, + lObjArgs ); + } + else + { + // must be an OLE link + + // TODO: in future, when more object types are possible this place seems + // to be a weak one, probably configuration must provide a type detection service + // for every factory, so any file could go through services until it is recognized + // or there is no more services + // Or for example the typename can be used to detect object type if typedetection + // was also extended. + + if ( !xStorage.is() ) + throw lang::IllegalArgumentException( "No parent storage is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 3 ); + + if ( sEntName.isEmpty() ) + throw lang::IllegalArgumentException( "Empty element name is provided!", + static_cast< ::cppu::OWeakObject* >(this), + 4 ); + + uno::Reference< embed::XEmbeddedObjectCreator > xLinkCreator = + embed::OLEEmbeddedObjectFactory::create( m_xContext); + + xResult = xLinkCreator->createInstanceLink( xStorage, sEntName, aTempMedDescr, lObjArgs ); + } + + return xResult; +} + +OUString SAL_CALL UNOEmbeddedObjectCreator::getImplementationName() +{ + return "com.sun.star.comp.embed.EmbeddedObjectCreator"; +} + +sal_Bool SAL_CALL UNOEmbeddedObjectCreator::supportsService( const OUString& ServiceName ) +{ + return cppu::supportsService(this, ServiceName); +} + +uno::Sequence< OUString > SAL_CALL UNOEmbeddedObjectCreator::getSupportedServiceNames() +{ + return { "com.sun.star.embed.EmbeddedObjectCreator", "com.sun.star.comp.embed.EmbeddedObjectCreator" }; +} + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +embeddedobj_UNOEmbeddedObjectCreator_get_implementation( + css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&) +{ + return cppu::acquire(new UNOEmbeddedObjectCreator(context)); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |