    /* -*- 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 "xmltabi.hxx"
    #include "xmlimprt.hxx"
    #include "xmlrowi.hxx"
    #include "xmlcoli.hxx"
    #include "xmlsceni.hxx"
    #include "xmlexternaltabi.hxx"
    #include "xmlnexpi.hxx"
    #include <document.hxx>
    #include <docuno.hxx>
    #include <olinetab.hxx>
    #include "XMLConverter.hxx"
    #include "XMLTableShapesContext.hxx"
    #include "XMLTableSourceContext.hxx"
    #include "XMLStylesImportHelper.hxx"
    #include <rangeutl.hxx>
    #include <externalrefmgr.hxx>
    #include <sheetdata.hxx>
    #include "xmlcondformat.hxx"

    #include <xmloff/xmltkmap.hxx>
    #include <xmloff/nmspmap.hxx>
    #include <xmloff/xmltoken.hxx>
    #include <xmloff/xmlnmspe.hxx>
    #include <xmloff/XMLEventsImportContext.hxx>
    #include <sal/log.hxx>

    #include <tools/urlobj.hxx>
    #include <sax/fastattribs.hxx>

    using namespace com::sun::star;
    using namespace xmloff::token;
    using ::com::sun::star::uno::Reference;
    using ::com::sun::star::uno::UNO_QUERY;
    using ::com::sun::star::xml::sax::XAttributeList;

    /**
     * Determine whether this table is an external reference cache from its
     * name.  There is currently no way of determining whether a table is a
     * regular table or an external reference cache other than examining the
     * name itself.  We should probably introduce a new boolean value for
     * table:table element and use it instead of doing this, to make it more
     * reliable and future-proof.
     *
     * @param rName
     *
     * @return
     */
    static bool lcl_isExternalRefCache(const OUString& rName, OUString& rUrl, OUString& rExtTabName)
    {
        // 'file:///path/to/file.ods'#MySheet
        // 'file:///path/to/file.ods'#MySheet with space
        // 'file:///path/to/file's.ods'#Sheet (Notice the quote in the file name.
        //  That's allowed.)

        if ( rName.toChar() != '\'' )       // initial quote
            return false;

        // #i114504# Other schemes besides "file:" are also allowed.
        // CompareProtocolScheme is quick, only looks at the start of the string.
        INetProtocol eProt = INetURLObject::CompareProtocolScheme( rName.copy(1) );
        if ( eProt == INetProtocol::NotValid )
            return false;

        OUString aPrefix = INetURLObject::GetScheme( eProt );
        sal_Int32 nPrefLen = aPrefix.getLength();

        OUStringBuffer aUrlBuf, aTabNameBuf;
        aUrlBuf.append( aPrefix );
        sal_Int32 n = rName.getLength();
        const sal_Unicode* p = rName.getStr();

        bool bInUrl = true;
        sal_Unicode cPrev = 0;
        for (sal_Int32 i = nPrefLen+1; i < n; ++i)      // start the loop after quote and prefix
        {
            const sal_Unicode c = p[i];
            if (bInUrl)
            {
                // parsing file URL
                if (c == '#')
                {
                    if (cPrev != '\'')
                        return false;

                    rUrl = aUrlBuf.makeStringAndClear();
                    rUrl = rUrl.copy(0, rUrl.getLength()-1); // remove the trailing single-quote.
                    bInUrl = false;
                }
                else
                    aUrlBuf.append(c);
            }
            else
                // parsing sheet name.
                aTabNameBuf.append(c);

            cPrev = c;
        }

        if (bInUrl)
            return false;

        if (aTabNameBuf.isEmpty())
            return false;

        rExtTabName = aTabNameBuf.makeStringAndClear();

        return true;
    }

    ScXMLExternalTabData::ScXMLExternalTabData() :
        mpCacheTable(), mnRow(0), mnCol(0), mnFileId(0)
    {
    }

    ScXMLTableContext::ScXMLTableContext( ScXMLImport& rImport,
                                          const rtl::Reference<sax_fastparser::FastAttributeList>& rAttrList ) :
        ScXMLImportContext( rImport ),
        nStartOffset(-1),
        bStartFormPage(false),
        bPrintEntireSheet(true)
    {
        // get start offset in file (if available)
        nStartOffset = GetScImport().GetByteOffset();

        ScXMLTabProtectionData aProtectData;
        OUString sName;
        OUString sStyleName;

        if ( rAttrList.is() )
        {
            for (auto &it : *rAttrList)
            {
                switch (it.getToken())
                {
                    case XML_ELEMENT( TABLE, XML_NAME ):
                            sName = it.toString();
                        break;
                    case XML_ELEMENT( TABLE, XML_STYLE_NAME ):
                            sStyleName = it.toString();
                        break;
                    case XML_ELEMENT( TABLE, XML_PROTECTED ):
                        aProtectData.mbProtected = IsXMLToken( it, XML_TRUE );
                    break;
                    case XML_ELEMENT( TABLE, XML_PRINT_RANGES ):
                            sPrintRanges = it.toString();
                        break;
                    case XML_ELEMENT( TABLE, XML_PROTECTION_KEY ):
                        aProtectData.maPassword = it.toString();
                    break;
                    case XML_ELEMENT( TABLE, XML_PROTECTION_KEY_DIGEST_ALGORITHM ):
                        aProtectData.meHash1 = ScPassHashHelper::getHashTypeFromURI( it.toString() );
                    break;
                    case XML_ELEMENT( TABLE, XML_PROTECTION_KEY_DIGEST_ALGORITHM_2 ):
                    case XML_ELEMENT( LO_EXT, XML_PROTECTION_KEY_DIGEST_ALGORITHM_2 ):
                        aProtectData.meHash2 = ScPassHashHelper::getHashTypeFromURI( it.toString() );
                    break;
                    case XML_ELEMENT( TABLE, XML_PRINT ):
                        {
                            if ( IsXMLToken( it, XML_FALSE) )
                                bPrintEntireSheet = false;
                        }
                        break;
                }

            }
        }

        OUString aExtUrl, aExtTabName;
        if (lcl_isExternalRefCache(sName, aExtUrl, aExtTabName))
        {
            // This is an external ref cache table.
            pExternalRefInfo.reset(new ScXMLExternalTabData);
            pExternalRefInfo->maFileUrl = aExtUrl;
            ScDocument* pDoc = GetScImport().GetDocument();
            if (pDoc)
            {
                ScExternalRefManager* pRefMgr = pDoc->GetExternalRefManager();
                pExternalRefInfo->mnFileId = pRefMgr->getExternalFileId(aExtUrl);
                pExternalRefInfo->mpCacheTable = pRefMgr->getCacheTable(pExternalRefInfo->mnFileId, aExtTabName, true,
                        nullptr, &aExtUrl);
                pExternalRefInfo->mpCacheTable->setWholeTableCached();
            }
        }
        else
        {
            // This is a regular table.
            GetScImport().GetTables().NewSheet(sName, sStyleName, aProtectData);
        }
    }

    ScXMLTableContext::~ScXMLTableContext()
    {
    }

    SvXMLImportContextRef ScXMLTableContext::CreateChildContext( sal_uInt16 nPrefix,
                                                const OUString& rLName,
                                                const css::uno::Reference<css::xml::sax::XAttributeList>& /*xAttrList*/ )
    {
        const SvXMLTokenMap& rTokenMap(GetScImport().GetTableElemTokenMap());
        sal_uInt16 nToken = rTokenMap.Get(nPrefix, rLName);
        if (pExternalRefInfo.get())
        {
            return new SvXMLImportContext(GetImport(), nPrefix, rLName);
        }

        SvXMLImportContext *pContext(nullptr);

        switch (nToken)
        {
        case XML_TOK_TABLE_FORMS:
            {
                GetScImport().GetFormImport()->startPage(GetScImport().GetTables().GetCurrentXDrawPage());
                bStartFormPage = true;
                pContext = xmloff::OFormLayerXMLImport::createOfficeFormsContext( GetScImport(), nPrefix, rLName );
            }
            break;
        case XML_TOK_TABLE_EVENT_LISTENERS:
        case XML_TOK_TABLE_EVENT_LISTENERS_EXT:
            {
                // use XEventsSupplier interface of the sheet
                uno::Reference<document::XEventsSupplier> xSupplier( GetScImport().GetTables().GetCurrentXSheet(), uno::UNO_QUERY );
                pContext = new XMLEventsImportContext( GetImport(), nPrefix, rLName, xSupplier );
            }
            break;
        default:
            ;
        }

        if( !pContext )
            pContext = new SvXMLImportContext( GetImport(), nPrefix, rLName );

        return pContext;
    }

    uno::Reference< xml::sax::XFastContextHandler > SAL_CALL
            ScXMLTableContext::createFastChildContext( sal_Int32 nElement,
            const uno::Reference< xml::sax::XFastAttributeList > & xAttrList )
    {
        sax_fastparser::FastAttributeList *pAttribList =
            sax_fastparser::FastAttributeList::castToFastAttributeList( xAttrList );

        if (pExternalRefInfo.get())
        {
            // We only care about the table-row and table-source elements for
            // external cache data.
            switch ( nElement )
            {
                case XML_ELEMENT( TABLE, XML_TABLE_ROW_GROUP ):
                case XML_ELEMENT( TABLE, XML_TABLE_HEADER_ROWS ):
                case XML_ELEMENT( TABLE, XML_TABLE_ROWS ):
                    // #i101319# don't discard rows in groups or header (repeat range)
                    return new ScXMLExternalRefRowsContext(
                        GetScImport(), *pExternalRefInfo);
                case XML_ELEMENT( TABLE, XML_TABLE_ROW ):
                    return new ScXMLExternalRefRowContext(
                        GetScImport(), pAttribList, *pExternalRefInfo);
                case XML_ELEMENT( TABLE, XML_TABLE_SOURCE ):
                    return new ScXMLExternalRefTabSourceContext(
                        GetScImport(), pAttribList, *pExternalRefInfo);
                default:
                    ;
            }
            return new SvXMLImportContext( GetImport() );
        }

        SvXMLImportContext *pContext(nullptr);

        switch ( nElement )
        {
        case XML_ELEMENT( TABLE, XML_NAMED_EXPRESSIONS ):
        {
            SCTAB nTab = GetScImport().GetTables().GetCurrentSheet();
            pContext = new ScXMLNamedExpressionsContext(
                GetScImport(),
                new ScXMLNamedExpressionsContext::SheetLocalInserter(GetScImport(), nTab));
        }
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_COLUMN_GROUP ):
            pContext = new ScXMLTableColsContext( GetScImport(), pAttribList,
                                                       false, true );
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_HEADER_COLUMNS ):
            pContext = new ScXMLTableColsContext( GetScImport(), pAttribList,
                                                       true, false );
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_COLUMNS ):
            pContext = new ScXMLTableColsContext( GetScImport(), pAttribList,
                                                       false, false );
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_COLUMN ):
            pContext = new ScXMLTableColContext( GetScImport(), pAttribList );
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_PROTECTION ):
        case XML_ELEMENT( LO_EXT, XML_TABLE_PROTECTION ):
        case XML_ELEMENT( OFFICE_EXT, XML_TABLE_PROTECTION ):
            pContext = new ScXMLTableProtectionContext( GetScImport(), pAttribList );
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_ROW_GROUP ):
            pContext = new ScXMLTableRowsContext( GetScImport(), pAttribList,
                                                       false, true );
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_HEADER_ROWS ):
            pContext = new ScXMLTableRowsContext( GetScImport(), pAttribList,
                                                       true, false );
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_ROWS ):
            pContext = new ScXMLTableRowsContext( GetScImport(), pAttribList,
                                                       false, false );
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_ROW ):
                pContext = new ScXMLTableRowContext( GetScImport(), pAttribList );
            break;
        case XML_ELEMENT( TABLE, XML_TABLE_SOURCE ):
            pContext = new ScXMLTableSourceContext( GetScImport(), pAttribList);
            break;
        case XML_ELEMENT( TABLE, XML_SCENARIO ):
            pContext = new ScXMLTableScenarioContext( GetScImport(), pAttribList);
            break;
        case XML_ELEMENT( TABLE, XML_SHAPES ):
            pContext = new ScXMLTableShapesContext( GetScImport() );
            break;
        case XML_ELEMENT( CALC_EXT, XML_CONDITIONAL_FORMATS ):
            pContext = new ScXMLConditionalFormatsContext( GetScImport() );
            break;
        default:
            pContext = new SvXMLImportContext( GetImport() );
        }

        if( !pContext )
            pContext = new SvXMLImportContext( GetImport() );

        return pContext;
    }

    void SAL_CALL ScXMLTableContext::endFastElement(sal_Int32 /*nElement*/)
    {
        ScXMLImport::MutexGuard aMutexGuard(GetScImport());
        ScXMLImport& rImport = GetScImport();
        rImport.GetStylesImportHelper()->EndTable();
        ScDocument* pDoc(rImport.GetDocument());
        if (!pDoc)
            return;

        ScMyTables& rTables = rImport.GetTables();
        SCTAB nCurTab = rTables.GetCurrentSheet();
        if (!sPrintRanges.isEmpty())
        {
             ScRangeList aRangeList;
            ScRangeStringConverter::GetRangeListFromString( aRangeList, sPrintRanges, pDoc, ::formula::FormulaGrammar::CONV_OOO );
            size_t nCount = aRangeList.size();
            for (size_t i=0; i< nCount; i++ )
            {
                pDoc->AddPrintRange( nCurTab, aRangeList[i] );
            }
        }
        else if (!bPrintEntireSheet)
            // Sheet has "print entire sheet" option by default.  Remove it.
            pDoc->ClearPrintRanges(nCurTab);

        ScOutlineTable* pOutlineTable(pDoc->GetOutlineTable(nCurTab));
        if (pOutlineTable)
        {
            ScOutlineArray& rColArray(pOutlineTable->GetColArray());
            size_t nDepth = rColArray.GetDepth();
            for (size_t i = 0; i < nDepth; ++i)
            {
                size_t nCount = rColArray.GetCount(i);
                for (size_t j = 0; j < nCount; ++j)
                {
                    const ScOutlineEntry* pEntry = rColArray.GetEntry(i, j);
                    if (pEntry->IsHidden())
                        rColArray.SetVisibleBelow(i, j, false);
                }
            }
            ScOutlineArray& rRowArray(pOutlineTable->GetRowArray());
            nDepth = rRowArray.GetDepth();
            for (size_t i = 0; i < nDepth; ++i)
            {
                size_t nCount = rRowArray.GetCount(i);
                for (size_t j = 0; j < nCount; ++j)
                {
                    const ScOutlineEntry* pEntry = rRowArray.GetEntry(i, j);
                    if (pEntry->IsHidden())
                        rRowArray.SetVisibleBelow(i, j, false);
                }
            }
        }
        if (rTables.HasDrawPage())
        {
            if (rTables.HasXShapes())
            {
                rImport.GetShapeImport()->popGroupAndSort();
                uno::Reference < drawing::XShapes > xTempShapes(rTables.GetCurrentXShapes());
                rImport.GetShapeImport()->endPage(xTempShapes);
            }
            if (bStartFormPage)
                rImport.GetFormImport()->endPage();
        }

        rTables.DeleteTable();
        rImport.ProgressBarIncrement();

        // store stream positions
        if (!pExternalRefInfo.get() && nStartOffset >= 0 /* && nEndOffset >= 0 */)
        {
            ScSheetSaveData* pSheetData = ScModelObj::getImplementation(rImport.GetModel())->GetSheetSaveData();
            SCTAB nTab = rTables.GetCurrentSheet();
            // pSheetData->AddStreamPos( nTab, nStartOffset, nEndOffset );
            pSheetData->StartStreamPos( nTab, nStartOffset );
        }
    }

    ScXMLTableProtectionContext::ScXMLTableProtectionContext(
        ScXMLImport& rImport,
        const rtl::Reference<sax_fastparser::FastAttributeList>& rAttrList ) :
        ScXMLImportContext( rImport )
    {
        bool bSelectProtectedCells = false;
        bool bSelectUnprotectedCells = false;
        bool bInsertColumns = false;
        bool bInsertRows = false;
        bool bDeleteColumns = false;
        bool bDeleteRows = false;

        if ( rAttrList.is() )
        {
            for (auto &aIter : *rAttrList)
            {
                sal_Int32 nToken = aIter.getToken();
                switch (nToken)
                {
                case XML_ELEMENT( TABLE, XML_SELECT_PROTECTED_CELLS ):
                case XML_ELEMENT( OFFICE_EXT, XML_SELECT_PROTECTED_CELLS ):
                case XML_ELEMENT( LO_EXT, XML_SELECT_PROTECTED_CELLS ):
                    bSelectProtectedCells = IsXMLToken(aIter, XML_TRUE);
                    break;
                case XML_ELEMENT( TABLE, XML_SELECT_UNPROTECTED_CELLS ):
                case XML_ELEMENT( OFFICE_EXT, XML_SELECT_UNPROTECTED_CELLS ):
                case XML_ELEMENT( LO_EXT, XML_SELECT_UNPROTECTED_CELLS ):
                    bSelectUnprotectedCells = IsXMLToken(aIter, XML_TRUE);
                    break;
                case XML_ELEMENT( LO_EXT, XML_INSERT_COLUMNS ):
                    bInsertColumns = IsXMLToken(aIter, XML_TRUE);
                    break;
                case XML_ELEMENT( LO_EXT,  XML_INSERT_ROWS ):
                    bInsertRows = IsXMLToken(aIter, XML_TRUE);
                    break;
                case XML_ELEMENT( LO_EXT, XML_DELETE_COLUMNS ):
                    bDeleteColumns = IsXMLToken(aIter, XML_TRUE);
                    break;
                case XML_ELEMENT( LO_EXT, XML_DELETE_ROWS ):
                    bDeleteRows = IsXMLToken(aIter, XML_TRUE);
                    break;
                default:
                    SAL_WARN("sc", "unknown attribute: " << nToken);
                }
            }
        }

        ScXMLTabProtectionData& rProtectData = GetScImport().GetTables().GetCurrentProtectionData();
        rProtectData.mbSelectProtectedCells   = bSelectProtectedCells;
        rProtectData.mbSelectUnprotectedCells = bSelectUnprotectedCells;
        rProtectData.mbInsertColumns = bInsertColumns;
        rProtectData.mbInsertRows = bInsertRows;
        rProtectData.mbDeleteColumns = bDeleteColumns;
        rProtectData.mbDeleteRows = bDeleteRows;
    }

    ScXMLTableProtectionContext::~ScXMLTableProtectionContext()
    {
    }

    uno::Reference< xml::sax::XFastContextHandler > SAL_CALL ScXMLTableProtectionContext::createFastChildContext(
        sal_Int32 /*nElement*/, const uno::Reference< xml::sax::XFastAttributeList >& /*xAttrList*/ )
    {
        return nullptr;
    }

    /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

↑ V668 There is no sense in testing the 'pContext' pointer against null, as the memory was allocated using the 'new' operator. The exception will be generated in the case of memory allocation error.