sw: fix temp file leak in SwIoSystem::GetFileFilter()

Change-Id: Id483d58a9de27a247880aedfe6bb3fe1d410129c

sw/inc/iodetect.hxx

@@ -94,7 +94,7 @@ public:
     /** Detect for the given file which filter should be used. The filter name
      is returned. If no filter could be found, the name of the ASCII filter
      is returned! */
-    static const SfxFilter* GetFileFilter( const OUString& rFileName, const OUString& rPrefFltName, SfxMedium* pMedium = 0 );
+    static const SfxFilter* GetFileFilter(const OUString& rFileName);
 
     static bool IsValidStgFilter( SotStorage& , const SfxFilter& );
     static bool IsValidStgFilter( const com::sun::star::uno::Reference < com::sun::star::embed::XStorage >& rStg, const SfxFilter& rFilter);

sw/source/filter/basflt/iodetect.cxx

@@ -198,9 +198,7 @@ void TerminateBuffer(sal_Char *pBuffer, sal_uLong nBytesRead, sal_uLong nBufferL
 // Check the type of the stream (file) by searching for corresponding set of bytes.
 // If no known type is found, return ASCII for now!
 // Returns the internal FilterName.
-// rPrefFltName is the internal FilterName that was chosen by the user in the Open Dlg.
-const SfxFilter* SwIoSystem::GetFileFilter(const OUString& rFileName,
-    const OUString& rPrefFltName, SfxMedium* pMedium)
+const SfxFilter* SwIoSystem::GetFileFilter(const OUString& rFileName)
 {
     SfxFilterContainer aCntSw( OUString(sSWRITER) );
     SfxFilterContainer aCntSwWeb( OUString(sSWRITERWEB) );
@@ -212,21 +210,20 @@ const SfxFilter* SwIoSystem::GetFileFilter(const OUString& rFileName,
     if ( !pFilter )
         return 0;
 
-    if( pMedium ? ( pMedium->IsStorage() || SotStorage::IsStorageFile( pMedium->GetInStream() ) ) : SotStorage::IsStorageFile( rFileName ) )
+    ::boost::scoped_ptr<SfxMedium> pMedium;
+    if (SotStorage::IsStorageFile(rFileName))
     {
         // package storage or OLEStorage based format
         SotStorageRef xStg;
-        if (!pMedium )
-        {
-            INetURLObject aObj;
-            aObj.SetSmartProtocol( INET_PROT_FILE );
-            aObj.SetSmartURL( rFileName );
-            pMedium = new SfxMedium( aObj.GetMainURL( INetURLObject::NO_DECODE ), STREAM_STD_READ );
-        }
+        INetURLObject aObj;
+        aObj.SetSmartProtocol( INET_PROT_FILE );
+        aObj.SetSmartURL( rFileName );
+        pMedium.reset(new SfxMedium(aObj.GetMainURL(INetURLObject::NO_DECODE), STREAM_STD_READ));
 
         // templates should not get precedence over "normal" filters (#i35508, #i33168)
         const SfxFilter* pTemplateFilter = 0;
-        const SfxFilter* pOldFilter = pFCntnr->GetFilter4FilterName( rPrefFltName );
+        const SfxFilter* pOldFilter = pFCntnr->GetFilter4FilterName("");
+        assert(!pOldFilter);
         bool bLookForTemplate = pOldFilter && pOldFilter->IsOwnTemplateFormat();
         if ( pMedium->IsStorage() )
         {

sw/source/uibase/dbui/dbmgr.cxx

@@ -867,7 +867,7 @@ bool SwDBManager::MergeMailFiles(SwWrtShell* pSourceShell,
         if( bMergeShell || !pSourceDocSh->IsModified() )
         {
             const SfxFilter* pStoreToFilter = SwIoSystem::GetFileFilter(
-                pSourceDocSh->GetMedium()->GetURLObject().GetMainURL( INetURLObject::NO_DECODE ), ::aEmptyOUStr );
+                pSourceDocSh->GetMedium()->GetURLObject().GetMainURL(INetURLObject::NO_DECODE));
             SfxFilterContainer* pFilterContainer = SwDocShell::Factory().GetFilterContainer();
             const OUString* pStoreToFilterOptions = 0;
 

sw/source/uibase/dochdl/swdtflvr.cxx

@@ -2570,8 +2570,7 @@ bool SwTransferable::_PasteFileName( TransferableDataHelper& rData,
                 //Own FileFormat? --> insert, not for StarWriter/Web
                 OUString sFileURL = URIHelper::SmartRel2Abs(INetURLObject(), sFile, Link(), false );
                 const SfxFilter* pFlt = SW_PASTESDR_SETATTR == nAction
-                        ? 0 : SwIoSystem::GetFileFilter(
-                        sFileURL, aEmptyOUStr );
+                        ? 0 : SwIoSystem::GetFileFilter(sFileURL);
                 if( pFlt && !rSh.GetView().GetDocShell()->ISA(SwWebDocShell) )
                 {
                 // and then pull up the insert-region-dialog by PostUser event