xmloff: refactor Generator version handling:

Since there are now 2 forks of OpenOffice.org, we cannot rely on a
simple total ordering of versions any more; add a new function
SvXMLImport::isGeneratorVersionOlderThan(), taking 2 reference versions.

Also extract the LibreOffice version number from the generator string,
and extend the BuildId property to store this as a third number.

This also allows removal of the "fake LibreOffice3 as OpenOffice.org
3.3 release" hack, which is not future-proof.

(cherry picked from commit bea63709)

Conflicts:
	xmloff/source/core/xmlimp.cxx

Change-Id: I44d8105eb537ac43fb9529a8b1b661ae0f2bba30
Reviewed-on: https://gerrit.libreoffice.org/1761Reviewed-by: Thorsten Behrens <tbehrens@suse.com>
Tested-by: Thorsten Behrens <tbehrens@suse.com>

xmloff/inc/xmloff/xmlimp.hxx

@@ -422,8 +422,16 @@ public:
     static const sal_uInt16 OOo_32x = 32;
     static const sal_uInt16 OOo_33x = 33;
     static const sal_uInt16 OOo_34x = 34;
+    static const sal_uInt16 LO_flag = 0x100;
+    static const sal_uInt16 LO_3x = 30 | LO_flag;
+    static const sal_uInt16 LO_4x = 40 | LO_flag;
     static const sal_uInt16 ProductVersionUnknown = SAL_MAX_UINT16;
 
+    /** depending on whether the generator version indicates LO, compare
+        against either the given LO or given OOo version */
+    bool isGeneratorVersionOlderThan(
+            sal_uInt16 const nOOoVersion, sal_uInt16 const nLOVersion);
+
     /** this checks the build ID and returns
 
         * OOo_1x for files created with OpenOffice.org 1.x or StarOffice 7 (this also includes binary import over binfilter)

xmloff/source/core/xmlimp.cxx

@@ -157,6 +157,31 @@ void SAL_CALL SvXMLImportEventListener::disposing( const lang::EventObject& )
 
 namespace
 {
+
+static OUString
+getBuildIdsProperty(uno::Reference<beans::XPropertySet> const& xImportInfo)
+{
+    if (xImportInfo.is())
+    {
+        try
+        {
+            Reference< XPropertySetInfo > const xSetInfo(
+                    xImportInfo->getPropertySetInfo());
+            if (xSetInfo.is() && xSetInfo->hasPropertyByName("BuildId"))
+            {
+                OUString aBuildId;
+                xImportInfo->getPropertyValue("BuildId") >>= aBuildId;
+                return aBuildId;
+            }
+        }
+        catch (Exception const& e)
+        {
+            SAL_WARN("xmloff", "exception getting BuildId" << e.Message);
+        }
+    }
+    return OUString();
+}
+
     class DocumentInfo
     {
         private:
@@ -166,6 +191,30 @@ namespace
             DocumentInfo( const SvXMLImport& rImport )
                 : mnGeneratorVersion( SvXMLImport::ProductVersionUnknown )
             {
+                OUString const buildIds(
+                        getBuildIdsProperty(rImport.getImportInfo()));
+                if (!buildIds.isEmpty())
+                {
+                    sal_Int32 const ix = buildIds.indexOf(';');
+                    if (-1 != ix)
+                    {
+                        OUString const loVersion(buildIds.copy(ix + 1));
+                        if (!loVersion.isEmpty())
+                        {
+                            if ('3' == loVersion[0])
+                            {
+                                mnGeneratorVersion = SvXMLImport::LO_3x;
+                            }
+                            else
+                            {
+                                SAL_INFO_IF('4' != loVersion[0], "xmloff",
+                                        "unknown LO version: " << loVersion);
+                                mnGeneratorVersion = SvXMLImport::LO_4x;
+                            }
+                            return; // ignore buildIds
+                        }
+                    }
+                }
                 sal_Int32 nUPD, nBuild;
                 if ( rImport.getBuildIds( nUPD, nBuild ) )
                 {
@@ -1838,29 +1887,20 @@ void SvXMLImport::initXForms()
 bool SvXMLImport::getBuildIds( sal_Int32& rUPD, sal_Int32& rBuild ) const
 {
     bool bRet = false;
-    if( mxImportInfo.is() ) try
+    OUString const aBuildId(getBuildIdsProperty(mxImportInfo));
+    if (!aBuildId.isEmpty())
     {
-        const OUString aPropName(RTL_CONSTASCII_USTRINGPARAM("BuildId"));
-        Reference< XPropertySetInfo > xSetInfo( mxImportInfo->getPropertySetInfo() );
-        if( xSetInfo.is() && xSetInfo->hasPropertyByName( aPropName ) )
+        sal_Int32 nIndex = aBuildId.indexOf('$');
+        if (nIndex != -1)
         {
-            OUString aBuildId;
-            mxImportInfo->getPropertyValue( aPropName ) >>= aBuildId;
-            if( !aBuildId.isEmpty() )
-            {
-                sal_Int32 nIndex = aBuildId.indexOf('$');
-                if( nIndex != -1 )
-                {
-                    rUPD = aBuildId.copy( 0, nIndex ).toInt32();
-                    rBuild = aBuildId.copy( nIndex+1 ).toInt32();
-                    bRet = true;
-                }
-            }
+            rUPD = aBuildId.copy( 0, nIndex ).toInt32();
+            sal_Int32 nIndexEnd = aBuildId.indexOf(';', nIndex);
+            rBuild = (nIndexEnd == -1)
+                ? aBuildId.copy(nIndex + 1).toInt32()
+                : aBuildId.copy(nIndex + 1, nIndexEnd - nIndex - 1).toInt32();
+            bRet = true;
         }
     }
-    catch( Exception& )
-    {
-    }
     return bRet;
 }
 
@@ -1871,6 +1911,17 @@ sal_uInt16 SvXMLImport::getGeneratorVersion() const
     // <--
 }
 
+bool SvXMLImport::isGeneratorVersionOlderThan(
+        sal_uInt16 const nOOoVersion, sal_uInt16 const nLOVersion)
+{
+    assert( (nLOVersion  & LO_flag));
+    assert(!(nOOoVersion & LO_flag));
+    const sal_uInt16 nGeneratorVersion(getGeneratorVersion());
+    return (nGeneratorVersion & LO_flag)
+        ?   nGeneratorVersion < nLOVersion
+        :   nGeneratorVersion < nOOoVersion;
+}
+
 bool SvXMLImport::isGraphicLoadOnDemandSupported() const
 {
     return mbIsGraphicLoadOnDemandSupported;

xmloff/source/draw/ximpshap.cxx

@@ -2696,10 +2696,8 @@ void SdXMLObjectShapeContext::StartElement( const ::com::sun::star::uno::Referen
 
 void SdXMLObjectShapeContext::EndElement()
 {
-    // #i67705#
-    const sal_uInt16 nGeneratorVersion(GetImport().getGeneratorVersion());
-
-    if(nGeneratorVersion < SvXMLImport::OOo_34x)
+    if (GetImport().isGeneratorVersionOlderThan(
+                SvXMLImport::OOo_34x, SvXMLImport::LO_4x))
     {
         // #i118485#
         // If it's an old file from us written before OOo3.4, we need to correct

xmloff/source/meta/xmlmetai.cxx

@@ -279,17 +279,27 @@ void SvXMLMetaDocumentContext::setBuildId(::rtl::OUString const& i_rBuildId, con
             sBuildId = OUString("680$9134"); // fake NeoOffice as OpenOffice.org 2.2 release
         }
     }
-// Is this really what we want / correct ?
-#ifdef FIXME_REMOVE_WHEN_RE_BASE_COMPLETE
-    else
+
+    if (i_rBuildId.startsWith("LibreOffice/"))
     {
-        if (i_rBuildId.startsWith("LibreOffice/3"))
+        OUStringBuffer sNumber;
+        for (sal_Int32 i = sizeof("LibreOffice/") - 1;
+                i < i_rBuildId.getLength(); ++i)
+        {
+            if (isdigit(i_rBuildId[i]))
+            {
+                sNumber.append(i_rBuildId[i]);
+            }
+            else if ('.' != i_rBuildId[i])
+            {
+                break;
+            }
+        }
+        if (sNumber.getLength())
         {
-            // #118558# fake LibreOffice3 as OpenOffice.org 3.3 release
-            sBuildId = OUString::createFromAscii( "330$9567" );
+            sBuildId += (";" + sNumber.makeStringAndClear());
         }
     }
-#endif
 
     if ( !sBuildId.isEmpty() ) try
     {