| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #include "oox/xls/excelhandlers.hxx" |
| |
| #include "oox/core/filterbase.hxx" |
| #include "oox/xls/biffinputstream.hxx" |
| |
| namespace oox { |
| namespace xls { |
| |
| // ============================================================================ |
| |
| using ::oox::core::FilterBase; |
| using ::oox::core::FragmentHandler2; |
| using ::rtl::OUString; |
| |
| // ============================================================================ |
| // ============================================================================ |
| |
| WorkbookFragmentBase::WorkbookFragmentBase( |
| const WorkbookHelper& rHelper, const OUString& rFragmentPath ) : |
| FragmentHandler2( rHelper.getOoxFilter(), rFragmentPath ), |
| WorkbookHelper( rHelper ) |
| { |
| } |
| |
| // ============================================================================ |
| |
| WorksheetFragmentBase::WorksheetFragmentBase( |
| const WorksheetHelper& rHelper, const OUString& rFragmentPath ) : |
| FragmentHandler2( rHelper.getOoxFilter(), rFragmentPath ), |
| WorksheetHelper( rHelper ) |
| { |
| } |
| |
| // ============================================================================ |
| // ============================================================================ |
| |
| BiffContextHandler::~BiffContextHandler() |
| { |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| BiffWorkbookContextBase::BiffWorkbookContextBase( const WorkbookHelper& rHelper ) : |
| WorkbookHelper( rHelper ) |
| { |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| BiffWorksheetContextBase::BiffWorksheetContextBase( const WorksheetHelper& rHelper ) : |
| WorksheetHelper( rHelper ) |
| { |
| } |
| |
| // ============================================================================ |
| |
| namespace { |
| |
| const sal_uInt16 BIFF_BOF_GLOBALS = 0x0005; /// BIFF5-BIFF8 workbook globals. |
| const sal_uInt16 BIFF_BOF_MODULE = 0x0006; /// BIFF5-BIFF8 Visual Basic module. |
| const sal_uInt16 BIFF_BOF_SHEET = 0x0010; /// BIFF2-BIFF8 worksheet/dialog sheet. |
| const sal_uInt16 BIFF_BOF_CHART = 0x0020; /// BIFF2-BIFF8 chart sheet. |
| const sal_uInt16 BIFF_BOF_MACRO = 0x0040; /// BIFF4-BIFF8 macro sheet. |
| const sal_uInt16 BIFF_BOF_WORKSPACE = 0x0100; /// BIFF3-BIFF8 workspace. |
| |
| } // namespace |
| |
| // ---------------------------------------------------------------------------- |
| |
| BiffFragmentHandler::BiffFragmentHandler( const FilterBase& rFilter, const OUString& rStrmName ) |
| { |
| // do not automatically close the root stream (indicated by empty stream name) |
| bool bRootStrm = rStrmName.getLength() == 0; |
| mxXInStrm.reset( new BinaryXInputStream( rFilter.openInputStream( rStrmName ), !bRootStrm ) ); |
| mxBiffStrm.reset( new BiffInputStream( *mxXInStrm ) ); |
| } |
| |
| BiffFragmentHandler::~BiffFragmentHandler() |
| { |
| } |
| |
| BiffFragmentType BiffFragmentHandler::startFragment( BiffType eBiff ) |
| { |
| BiffFragmentType eFragment = BIFF_FRAGMENT_UNKNOWN; |
| /* #i23425# Don't rely on BOF record ID to read BOF contents, but on |
| the detected BIFF version. */ |
| if( mxBiffStrm->startNextRecord() && BiffHelper::isBofRecord( *mxBiffStrm ) ) |
| { |
| // BOF is always written unencrypted |
| mxBiffStrm->enableDecoder( false ); |
| mxBiffStrm->skip( 2 ); |
| sal_uInt16 nType = mxBiffStrm->readuInt16(); |
| |
| // decide which fragment types are valid for current BIFF version |
| switch( eBiff ) |
| { |
| case BIFF2: switch( nType ) |
| { |
| case BIFF_BOF_CHART: eFragment = BIFF_FRAGMENT_EMPTYSHEET; break; |
| case BIFF_BOF_MACRO: eFragment = BIFF_FRAGMENT_MACROSHEET; break; |
| // #i51490# Excel interprets invalid types as worksheet |
| default: eFragment = BIFF_FRAGMENT_WORKSHEET; |
| } |
| break; |
| |
| case BIFF3: switch( nType ) |
| { |
| case BIFF_BOF_CHART: eFragment = BIFF_FRAGMENT_EMPTYSHEET; break; |
| case BIFF_BOF_MACRO: eFragment = BIFF_FRAGMENT_MACROSHEET; break; |
| case BIFF_BOF_WORKSPACE:eFragment = BIFF_FRAGMENT_UNKNOWN; break; |
| // #i51490# Excel interprets invalid types as worksheet |
| default: eFragment = BIFF_FRAGMENT_WORKSHEET; |
| }; |
| break; |
| |
| case BIFF4: switch( nType ) |
| { |
| case BIFF_BOF_CHART: eFragment = BIFF_FRAGMENT_EMPTYSHEET; break; |
| case BIFF_BOF_MACRO: eFragment = BIFF_FRAGMENT_MACROSHEET; break; |
| case BIFF_BOF_WORKSPACE:eFragment = BIFF_FRAGMENT_WORKSPACE; break; |
| // #i51490# Excel interprets invalid types as worksheet |
| default: eFragment = BIFF_FRAGMENT_WORKSHEET; |
| }; |
| break; |
| |
| case BIFF5: |
| case BIFF8: switch( nType ) |
| { |
| case BIFF_BOF_GLOBALS: eFragment = BIFF_FRAGMENT_GLOBALS; break; |
| case BIFF_BOF_CHART: eFragment = BIFF_FRAGMENT_CHARTSHEET; break; |
| case BIFF_BOF_MACRO: eFragment = BIFF_FRAGMENT_MACROSHEET; break; |
| case BIFF_BOF_MODULE: eFragment = BIFF_FRAGMENT_MODULESHEET; break; |
| case BIFF_BOF_WORKSPACE:eFragment = BIFF_FRAGMENT_UNKNOWN; break; |
| // #i51490# Excel interprets invalid types as worksheet |
| default: eFragment = BIFF_FRAGMENT_WORKSHEET; |
| }; |
| break; |
| |
| case BIFF_UNKNOWN: break; |
| } |
| } |
| return eFragment; |
| } |
| |
| bool BiffFragmentHandler::skipFragment() |
| { |
| while( mxBiffStrm->startNextRecord() && (mxBiffStrm->getRecId() != BIFF_ID_EOF) ) |
| if( BiffHelper::isBofRecord( *mxBiffStrm ) ) |
| skipFragment(); |
| return !mxBiffStrm->isEof() && (mxBiffStrm->getRecId() == BIFF_ID_EOF); |
| } |
| |
| // ============================================================================ |
| |
| BiffWorkbookFragmentBase::BiffWorkbookFragmentBase( const WorkbookHelper& rHelper, const OUString& rStrmName, bool bCloneDecoder ) : |
| BiffFragmentHandler( rHelper.getBaseFilter(), rStrmName ), |
| WorkbookHelper( rHelper ) |
| { |
| if( bCloneDecoder ) |
| getCodecHelper().cloneDecoder( getInputStream() ); |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| BiffWorksheetFragmentBase::BiffWorksheetFragmentBase( const WorksheetHelper& rHelper, const BiffWorkbookFragmentBase& rParent ) : |
| BiffFragmentHandler( rParent ), |
| WorksheetHelper( rHelper ) |
| { |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| BiffSkipWorksheetFragment::BiffSkipWorksheetFragment( const WorksheetHelper& rHelper, const BiffWorkbookFragmentBase& rParent ) : |
| BiffWorksheetFragmentBase( rHelper, rParent ) |
| { |
| } |
| |
| bool BiffSkipWorksheetFragment::importFragment() |
| { |
| return skipFragment(); |
| } |
| |
| // ============================================================================ |
| // ============================================================================ |
| |
| } // namespace xls |
| } // namespace oox |
