Resolves: tdf#114555 check .xlsx col/row/tab overflow and display warning

Change-Id: I3091a890b6d4a3f27d9284fc5c0e2df3bc8ce527
Reviewed-on: https://gerrit.libreoffice.org/50541
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Eike Rathke <erack@redhat.com>

3 files changed, 90 insertions, 6 deletions

diff --git a/sc/source/filter/inc/addressconverter.hxx b/sc/source/filter/inc/addressconverter.hxx
index 57f1f33cabcd..d1d53531e0f1 100644
--- a/sc/source/filter/inc/addressconverter.hxx
+++ b/sc/source/filter/inc/addressconverter.hxx
@@ -479,6 +479,10 @@ public:
     static css::uno::Sequence<css::table::CellRangeAddress>
                         toApiSequence(const ScRangeList& orRanges);
 
+    bool                isColOverflow() const { return mbColOverflow; }
+    bool                isRowOverflow() const { return mbRowOverflow; }
+    bool                isTabOverflow() const { return mbTabOverflow; }
+
 private:
     void                initializeMaxPos(
                             sal_Int16 nMaxXlsTab, sal_Int32 nMaxXlsCol, sal_Int32 nMaxXlsRow );
diff --git a/sc/source/filter/oox/excelfilter.cxx b/sc/source/filter/oox/excelfilter.cxx
index 989befcb6b51..006c4818e48a 100644
--- a/sc/source/filter/oox/excelfilter.cxx
+++ b/sc/source/filter/oox/excelfilter.cxx
@@ -30,6 +30,15 @@
 #include <workbookfragment.hxx>
 #include <xestream.hxx>
 
+#include <addressconverter.hxx>
+#include <document.hxx>
+#include <docsh.hxx>
+#include <scerrors.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/weld.hxx>
+#include <svtools/sfxecode.hxx>
+#include <tools/urlobj.hxx>
+
 namespace oox {
 namespace xls {
 
@@ -97,9 +106,67 @@ bool ExcelFilter::importDocument()
             the class WorkbookHelper, and execute the import filter by constructing
             an instance of WorkbookFragment and loading the file. */
         WorkbookGlobalsRef xBookGlob(WorkbookHelper::constructGlobals(*this));
-        if (xBookGlob.get() && importFragment(new WorkbookFragment(*xBookGlob, aWorkbookPath)))
+        if (xBookGlob.get())
         {
-            return true;
+            rtl::Reference<FragmentHandler> xWorkbookFragment( new WorkbookFragment(*xBookGlob, aWorkbookPath));
+            bool bRet = importFragment( xWorkbookFragment);
+            if (bRet)
+            {
+                const WorkbookFragment* pWF = static_cast<const WorkbookFragment*>(xWorkbookFragment.get());
+                const AddressConverter& rAC = pWF->getAddressConverter();
+                if (rAC.isTabOverflow() || rAC.isColOverflow() || rAC.isRowOverflow())
+                {
+                    const ScDocument& rDoc = pWF->getScDocument();
+                    if (rDoc.IsUserInteractionEnabled())
+                    {
+                        // Show data loss warning.
+
+                        INetURLObject aURL( getFileUrl());
+                        SfxErrorContext aContext( ERRCTX_SFX_OPENDOC,
+                                aURL.getName( INetURLObject::LAST_SEGMENT, true,
+                                    INetURLObject::DecodeMechanism::WithCharset),
+                                nullptr, RID_ERRCTX);
+
+                        OUString aWarning;
+                        aContext.GetString( ERRCODE_NONE.MakeWarning(), aWarning);
+                        aWarning += ":\n";
+
+                        OUString aMsg;
+                        if (rAC.isTabOverflow())
+                        {
+                            if (ErrorHandler::GetErrorString( SCWARN_IMPORT_SHEET_OVERFLOW, aMsg))
+                                aWarning += aMsg;
+                        }
+                        if (rAC.isColOverflow())
+                        {
+                            if (!aMsg.isEmpty())
+                                aWarning += "\n";
+                            if (ErrorHandler::GetErrorString( SCWARN_IMPORT_COLUMN_OVERFLOW, aMsg))
+                                aWarning += aMsg;
+                        }
+                        if (rAC.isRowOverflow())
+                        {
+                            if (!aMsg.isEmpty())
+                                aWarning += "\n";
+                            if (ErrorHandler::GetErrorString( SCWARN_IMPORT_ROW_OVERFLOW, aMsg))
+                                aWarning += aMsg;
+                        }
+
+                        /* XXX displaying a dialog here is ugly and should
+                         * rather happen at UI level instead of at the filter
+                         * level, but it seems there's no way to transport
+                         * detailed information other than returning true or
+                         * false at this point? */
+
+                        vcl::Window* pWin = ScDocShell::GetActiveDialogParent();
+                        std::unique_ptr<weld::MessageDialog> xWarn(Application::CreateMessageDialog(pWin ? pWin->GetFrameWeld() : nullptr,
+                                                                   VclMessageType::Warning, VclButtonsType::Ok,
+                                                                   aWarning));
+                        xWarn->run();
+                    }
+                }
+            }
+            return bRet;
         }
     }
     catch (...)
diff --git a/sc/source/filter/oox/sheetdatacontext.cxx b/sc/source/filter/oox/sheetdatacontext.cxx
index b221cb16a73b..5f17d8c419b6 100644
--- a/sc/source/filter/oox/sheetdatacontext.cxx
+++ b/sc/source/filter/oox/sheetdatacontext.cxx
@@ -273,6 +273,7 @@ void SheetDataContext::importRow( const AttributeList& rAttribs )
     }
     else
         aModel.mnRow = ++mnRow;
+    mrAddressConv.checkRow( mnRow, true);
     mnCol = -1;
 
     aModel.mfHeight       = rAttribs.getDouble( XML_ht, -1.0 );
@@ -297,8 +298,14 @@ void SheetDataContext::importRow( const AttributeList& rAttribs )
         if( (0 < nSepPos) && (nSepPos + 1 < aColSpanToken.getLength()) )
         {
             // OOXML uses 1-based integer column indexes, row model expects 0-based colspans
-            sal_Int32 nLastCol = ::std::min( aColSpanToken.copy( nSepPos + 1 ).toInt32() - 1, nMaxCol );
-            aModel.insertColSpan( ValueRange( aColSpanToken.copy( 0, nSepPos ).toInt32() - 1, nLastCol ) );
+            const sal_Int32 nCol1 = aColSpanToken.copy( 0, nSepPos ).toInt32() - 1;
+            const bool bValid1 = mrAddressConv.checkCol( nCol1, true);
+            if (bValid1)
+            {
+                const sal_Int32 nCol2 = aColSpanToken.copy( nSepPos + 1 ).toInt32() - 1;
+                mrAddressConv.checkCol( nCol2, true);
+                aModel.insertColSpan( ValueRange( nCol1, ::std::min( nCol2, nMaxCol )));
+            }
         }
     }
 
@@ -314,7 +321,9 @@ bool SheetDataContext::importCell( const AttributeList& rAttribs )
     if (!p)
     {
         ++mnCol;
-        maCellData.maCellAddr = ScAddress( mnCol, mnRow, mnSheet );
+        ScAddress aAddress( mnCol, mnRow, mnSheet );
+        bValid = mrAddressConv.checkCellAddress( aAddress, true );
+        maCellData.maCellAddr = aAddress;
     }
     else
     {
@@ -374,6 +383,7 @@ void SheetDataContext::importRow( SequenceInputStream& rStrm )
     nSpanCount = rStrm.readInt32();
     maCurrPos.mnCol = 0;
 
+    mrAddressConv.checkRow( maCurrPos.mnRow, true);
     // row index is 0-based in BIFF12, but RowModel expects 1-based
     aModel.mnRow          = maCurrPos.mnRow + 1;
     // row height is in twips in BIFF12, convert to points
@@ -393,8 +403,11 @@ void SheetDataContext::importRow( SequenceInputStream& rStrm )
     {
         sal_Int32 nFirstCol, nLastCol;
         nFirstCol = rStrm.readInt32();
+        const bool bValid1 = mrAddressConv.checkCol( nFirstCol, true);
         nLastCol = rStrm.readInt32();
-        aModel.insertColSpan( ValueRange( nFirstCol, ::std::min( nLastCol, nMaxCol ) ) );
+        mrAddressConv.checkCol( nLastCol, true);
+        if (bValid1)
+            aModel.insertColSpan( ValueRange( nFirstCol, ::std::min( nLastCol, nMaxCol ) ) );
     }
 
     // set row properties in the current sheet