dddd9b41f5
Change-Id: Ic731c1c4c76d8d6779868d7e3e4c02cb3cadc844 Reviewed-on: https://gerrit.libreoffice.org/9222 Reviewed-by: Maxim Monastirsky <momonasmon@gmail.com> Tested-by: Maxim Monastirsky <momonasmon@gmail.com>
145 lines
5.1 KiB
C++
145 lines
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "swdetect.hxx"
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#include <cppuhelper/supportsservice.hxx>
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#include <com/sun/star/container/XNameAccess.hpp>
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#include <com/sun/star/io/XInputStream.hpp>
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#include <sfx2/docfile.hxx>
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#include <sot/storage.hxx>
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#include <unotools/mediadescriptor.hxx>
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::io;
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using namespace ::com::sun::star::task;
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using namespace ::com::sun::star::beans;
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using namespace ::com::sun::star::lang;
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using utl::MediaDescriptor;
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SwFilterDetect::SwFilterDetect( const Reference < XMultiServiceFactory >& /*xFactory*/ )
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{
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}
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SwFilterDetect::~SwFilterDetect()
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{
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}
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OUString SAL_CALL SwFilterDetect::detect( Sequence< PropertyValue >& lDescriptor ) throw( RuntimeException, std::exception )
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{
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MediaDescriptor aMediaDesc( lDescriptor );
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OUString aTypeName = aMediaDesc.getUnpackedValueOrDefault( MediaDescriptor::PROP_TYPENAME(), OUString() );
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uno::Reference< io::XInputStream > xInStream ( aMediaDesc[MediaDescriptor::PROP_INPUTSTREAM()], uno::UNO_QUERY );
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if ( !xInStream.is() )
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return OUString();
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SfxMedium aMedium;
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aMedium.UseInteractionHandler( false );
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aMedium.setStreamToLoadFrom( xInStream, true );
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SvStream *pInStrm = aMedium.GetInStream();
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if ( !pInStrm || pInStrm->GetError() )
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return OUString();
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bool bIsDetected = false;
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if ( aTypeName == "writer_Rich_Text_Format" )
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{
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pInStrm->Seek( STREAM_SEEK_TO_BEGIN );
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bIsDetected = ( read_uInt8s_ToOString( *pInStrm, 5 ) == "{\\rtf" );
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}
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else if ( aTypeName == "writer_MS_WinWord_5" )
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{
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pInStrm->Seek( STREAM_SEEK_TO_BEGIN );
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const sal_uInt8 nBufSize = 3;
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sal_uInt8 nBuffer[ nBufSize ];
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if ( pInStrm->Read( nBuffer, nBufSize ) < nBufSize )
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return OUString();
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bIsDetected = ( nBuffer[0] == 0xDB && nBuffer[1] == 0xA5 && nBuffer[2] == 0x2D ) // WinWord 2.0 file
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|| ( nBuffer[0] == 0xDC && nBuffer[1] == 0xA5 && nBuffer[2] == 0x65 ); // WinWord 6.0/95, as a single stream file
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}
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else
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{
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// Do not attempt to create an SotStorage on a
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// 0-length stream as that would create the compound
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// document header on the stream and effectively write to
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// disk!
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pInStrm->Seek( STREAM_SEEK_TO_BEGIN );
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if ( pInStrm->remainingSize() == 0 )
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return OUString();
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SotStorageRef aStorage = new SotStorage ( pInStrm, false );
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if ( !aStorage->GetError() )
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{
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bIsDetected = aStorage->IsContained( "WordDocument" );
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if ( bIsDetected && aTypeName.startsWith( "writer_MS_Word_97" ) )
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bIsDetected = ( aStorage->IsContained("0Table") || aStorage->IsContained("1Table") );
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}
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}
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if ( bIsDetected )
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return aTypeName;
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return OUString();
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}
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/* XServiceInfo */
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OUString SAL_CALL SwFilterDetect::getImplementationName() throw( RuntimeException, std::exception )
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{
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return impl_getStaticImplementationName();
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}
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/* XServiceInfo */
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sal_Bool SAL_CALL SwFilterDetect::supportsService( const OUString& sServiceName ) throw( RuntimeException, std::exception )
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{
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return cppu::supportsService(this, sServiceName);
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}
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/* XServiceInfo */
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Sequence< OUString > SAL_CALL SwFilterDetect::getSupportedServiceNames() throw( RuntimeException, std::exception )
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{
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return impl_getStaticSupportedServiceNames();
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}
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/* Helper for XServiceInfo */
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Sequence< OUString > SwFilterDetect::impl_getStaticSupportedServiceNames()
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{
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Sequence< OUString > seqServiceNames( 3 );
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seqServiceNames.getArray() [0] = "com.sun.star.frame.ExtendedTypeDetection";
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seqServiceNames.getArray() [1] = "com.sun.star.text.FormatDetector";
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seqServiceNames.getArray() [2] = "com.sun.star.text.W4WFormatDetector";
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return seqServiceNames ;
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}
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/* Helper for XServiceInfo */
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OUString SwFilterDetect::impl_getStaticImplementationName()
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{
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return OUString("com.sun.star.comp.writer.FormatDetector" );
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}
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/* Helper for registry */
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Reference< XInterface > SAL_CALL SwFilterDetect::impl_createInstance( const Reference< XMultiServiceFactory >& xServiceManager ) throw( Exception )
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{
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return Reference< XInterface >( *new SwFilterDetect( xServiceManager ) );
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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