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/* -*- 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/objsh.hxx>
#include <sfx2/app.hxx>
#include <sfx2/frame.hxx>
#include <sfx2/request.hxx>
#include <sot/storage.hxx>
#include <sot/exchange.hxx>
#include <filter/msfilter/classids.hxx>
#include <tools/globname.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/beans/NamedValue.hpp>
#include <com/sun/star/document/XFilter.hpp>
#include <com/sun/star/document/XImporter.hpp>
#include "scitems.hxx"
#include <svl/stritem.hxx>
#include "filter.hxx"
#include "document.hxx"
#include "xistream.hxx"
#include "scerrors.hxx"
#include "root.hxx"
#include "imp_op.hxx"
#include "excimp8.hxx"
#include "exp_op.hxx"
#include "scdll.hxx"
#include <memory>
ErrCode ScFormatFilterPlugin::ScImportExcel( SfxMedium& rMedium, ScDocument* pDocument, const EXCIMPFORMAT eFormat )
{
// check the passed Calc document
OSL_ENSURE( pDocument, "::ScImportExcel - no document" );
if( !pDocument ) return SCERR_IMPORT_INTERNAL; // should not happen
/* Import all BIFF versions regardless on eFormat, needed for import of
external cells (file type detection returns Excel4.0). */
if( (eFormat != EIF_AUTO) && (eFormat != EIF_BIFF_LE4) && (eFormat != EIF_BIFF5) && (eFormat != EIF_BIFF8) )
{
OSL_FAIL( "::ScImportExcel - wrong file format specification" );
return SCERR_IMPORT_FORMAT;
}
// check the input stream from medium
SvStream* pMedStrm = rMedium.GetInStream();
OSL_ENSURE( pMedStrm, "::ScImportExcel - medium without input stream" );
if( !pMedStrm ) return SCERR_IMPORT_OPEN; // should not happen
SvStream* pBookStrm = nullptr; // The "Book"/"Workbook" stream containing main data.
XclBiff eBiff = EXC_BIFF_UNKNOWN; // The BIFF version of the main stream.
// try to open an OLE storage
tools::SvRef<SotStorage> xRootStrg;
tools::SvRef<SotStorageStream> xStrgStrm;
if( SotStorage::IsStorageFile( pMedStrm ) )
{
xRootStrg = new SotStorage( pMedStrm, false );
if( xRootStrg->GetError() )
xRootStrg = nullptr;
}
// try to open "Book" or "Workbook" stream in OLE storage
if( xRootStrg.is() )
{
// try to open the "Book" stream
tools::SvRef<SotStorageStream> xBookStrm = ScfTools::OpenStorageStreamRead( xRootStrg, EXC_STREAM_BOOK );
XclBiff eBookBiff = xBookStrm.is() ? XclImpStream::DetectBiffVersion( *xBookStrm ) : EXC_BIFF_UNKNOWN;
// try to open the "Workbook" stream
tools::SvRef<SotStorageStream> xWorkbookStrm = ScfTools::OpenStorageStreamRead( xRootStrg, EXC_STREAM_WORKBOOK );
XclBiff eWorkbookBiff = xWorkbookStrm.is() ? XclImpStream::DetectBiffVersion( *xWorkbookStrm ) : EXC_BIFF_UNKNOWN;
// decide which stream to use
if( (eWorkbookBiff != EXC_BIFF_UNKNOWN) && ((eBookBiff == EXC_BIFF_UNKNOWN) || (eWorkbookBiff > eBookBiff)) )
{
/* Only "Workbook" stream exists; or both streams exist,
and "Workbook" has higher BIFF version than "Book" stream. */
xStrgStrm = xWorkbookStrm;
eBiff = eWorkbookBiff;
}
else if( eBookBiff != EXC_BIFF_UNKNOWN )
{
/* Only "Book" stream exists; or both streams exist,
and "Book" has higher BIFF version than "Workbook" stream. */
xStrgStrm = xBookStrm;
eBiff = eBookBiff;
}
pBookStrm = xStrgStrm.get();
}
// no "Book" or "Workbook" stream found, try plain input stream from medium (even for BIFF5+)
if( !pBookStrm )
{
eBiff = XclImpStream::DetectBiffVersion( *pMedStrm );
if( eBiff != EXC_BIFF_UNKNOWN )
pBookStrm = pMedStrm;
}
// try to import the file
ErrCode eRet = SCERR_IMPORT_UNKNOWN_BIFF;
if( pBookStrm )
{
pBookStrm->SetBufferSize( 0x8000 ); // still needed?
XclImpRootData aImpData( eBiff, rMedium, xRootStrg, *pDocument, RTL_TEXTENCODING_MS_1252 );
std::unique_ptr< ImportExcel > xFilter;
switch( eBiff )
{
case EXC_BIFF2:
case EXC_BIFF3:
case EXC_BIFF4:
case EXC_BIFF5:
xFilter.reset( new ImportExcel( aImpData, *pBookStrm ) );
break;
case EXC_BIFF8:
xFilter.reset( new ImportExcel8( aImpData, *pBookStrm ) );
break;
default: DBG_ERROR_BIFF();
}
eRet = xFilter.get() ? xFilter->Read() : SCERR_IMPORT_INTERNAL;
}
return eRet;
}
static ErrCode lcl_ExportExcelBiff( SfxMedium& rMedium, ScDocument *pDocument,
SvStream* pMedStrm, bool bBiff8, rtl_TextEncoding eNach )
{
// try to open an OLE storage
tools::SvRef<SotStorage> xRootStrg = new SotStorage( pMedStrm, false );
if( xRootStrg->GetError() ) return SCERR_IMPORT_OPEN;
// create BIFF dependent strings
OUString aStrmName, aClipName, aClassName;
if( bBiff8 )
{
aStrmName = EXC_STREAM_WORKBOOK;
aClipName = "Biff8";
aClassName = "Microsoft Excel 97-Tabelle";
}
else
{
aStrmName = EXC_STREAM_BOOK;
aClipName = "Biff5";
aClassName = "Microsoft Excel 5.0-Tabelle";
}
// open the "Book"/"Workbook" stream
tools::SvRef<SotStorageStream> xStrgStrm = ScfTools::OpenStorageStreamWrite( xRootStrg, aStrmName );
if( !xStrgStrm.is() || xStrgStrm->GetError() ) return SCERR_IMPORT_OPEN;
xStrgStrm->SetBufferSize( 0x8000 ); // still needed?
ErrCode eRet = SCERR_IMPORT_UNKNOWN_BIFF;
XclExpRootData aExpData( bBiff8 ? EXC_BIFF8 : EXC_BIFF5, rMedium, xRootStrg, *pDocument, eNach );
if ( bBiff8 )
{
ExportBiff8 aFilter( aExpData, *xStrgStrm );
eRet = aFilter.Write();
}
else
{
ExportBiff5 aFilter( aExpData, *xStrgStrm );
eRet = aFilter.Write();
}
if( eRet == SCWARN_IMPORT_RANGE_OVERFLOW )
eRet = SCWARN_EXPORT_MAXROW;
SvGlobalName aGlobName(MSO_EXCEL5_CLASSID);
SotClipboardFormatId nClip = SotExchange::RegisterFormatName( aClipName );
xRootStrg->SetClass( aGlobName, nClip, aClassName );
xStrgStrm->Commit();
xRootStrg->Commit();
return eRet;
}
ErrCode ScFormatFilterPlugin::ScExportExcel5( SfxMedium& rMedium, ScDocument *pDocument,
ExportFormatExcel eFormat, rtl_TextEncoding eNach )
{
if( eFormat != ExpBiff5 && eFormat != ExpBiff8 )
return SCERR_IMPORT_NI;
// check the passed Calc document
OSL_ENSURE( pDocument, "::ScExportExcel5 - no document" );
if( !pDocument ) return SCERR_IMPORT_INTERNAL; // should not happen
// check the output stream from medium
SvStream* pMedStrm = rMedium.GetOutStream();
OSL_ENSURE( pMedStrm, "::ScExportExcel5 - medium without output stream" );
if( !pMedStrm ) return SCERR_IMPORT_OPEN; // should not happen
ErrCode eRet = SCERR_IMPORT_UNKNOWN_BIFF;
if( eFormat == ExpBiff5 || eFormat == ExpBiff8 )
eRet = lcl_ExportExcelBiff( rMedium, pDocument, pMedStrm, eFormat == ExpBiff8, eNach );
return eRet;
}
extern "C" SAL_DLLPUBLIC_EXPORT bool SAL_CALL TestImportQPW(SvStream &rStream)
{
ScDLL::Init();
ScDocument aDocument;
aDocument.MakeTable(0);
return ScFormatFilter::Get().ScImportQuattroPro(&rStream, &aDocument) == ERRCODE_NONE;
}
extern "C" SAL_DLLPUBLIC_EXPORT bool SAL_CALL TestImportXLS(const OUString &rURL)
{
ScDLL::Init();
SfxMedium aMedium(rURL, StreamMode::READ);
ScDocument aDocument;
aDocument.MakeTable(0);
return ScFormatFilter::Get().ScImportExcel(aMedium, &aDocument, EIF_AUTO) == ERRCODE_NONE;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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