tdf#131621: fix crash in mergedlo.dll

When the embedded database comes from the template this document was
created from, the document might not have old URL yet.

This backport does not try to handle template's data source's
relative reference right. This depends on commit
e0f20211a8048a87b078aa4cf0f28c0c847487ad, which is not backported to
6-4 and 6-3.

Co-authored-by: Julien Nabet <serval2412@yahoo.fr>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/92398
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
(cherry picked from commit 0a0c10c0502906bebf9ea8c732d63809d5080dd6)

Change-Id: I5607113e0ae88fdb825d8a645c0968d2fe22ebd7
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/92429
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@cib.de>

1 files changed, 33 insertions, 24 deletions

diff --git a/sw/source/uibase/app/docsh.cxx b/sw/source/uibase/app/docsh.cxx
index 8ca4d4a07651..151770695eeb 100644
--- a/sw/source/uibase/app/docsh.cxx
+++ b/sw/source/uibase/app/docsh.cxx
@@ -465,32 +465,41 @@ bool SwDocShell::SaveAs( SfxMedium& rMedium )
         // We have an embedded data source definition, need to re-store it,
         // otherwise relative references will break when the new file is in a
         // different directory.
-        uno::Reference<sdb::XDatabaseContext> xDatabaseContext = sdb::DatabaseContext::create(comphelper::getProcessComponentContext());
-
-        const INetURLObject& rOldURLObject = GetMedium()->GetURLObject();
-        auto xContext(comphelper::getProcessComponentContext());
-        auto xUri = css::uri::UriReferenceFactory::create(xContext)
-            ->parse(rOldURLObject.GetMainURL(INetURLObject::DecodeMechanism::NONE));
-        assert(xUri.is());
-        xUri = css::uri::VndSunStarPkgUrlReferenceFactory::create(xContext)->createVndSunStarPkgUrlReference(xUri);
-        assert(xUri.is());
-        OUString const aURL = xUri->getUriReference() + "/"
-            + INetURLObject::encode(pMgr->getEmbeddedName(),
-                INetURLObject::PART_FPATH, INetURLObject::EncodeMechanism::All);
-
-        bool bCopyTo = GetCreateMode() == SfxObjectCreateMode::EMBEDDED;
-        if (!bCopyTo)
+
+        OUString aURL(GetMedium()->GetURLObject().GetMainURL(INetURLObject::DecodeMechanism::NONE));
+
+        if (!aURL.isEmpty())
         {
-            if (const SfxBoolItem* pSaveToItem
-                = SfxItemSet::GetItem(rMedium.GetItemSet(), SID_SAVETO, false))
-                bCopyTo = pSaveToItem->GetValue();
-        }
+            auto xContext(comphelper::getProcessComponentContext());
+            auto xUri = css::uri::UriReferenceFactory::create(xContext)->parse(aURL);
+            assert(xUri.is());
+            xUri = css::uri::VndSunStarPkgUrlReferenceFactory::create(xContext)
+                       ->createVndSunStarPkgUrlReference(xUri);
+            assert(xUri.is());
+            aURL = xUri->getUriReference() + "/"
+                   + INetURLObject::encode(pMgr->getEmbeddedName(), INetURLObject::PART_FPATH,
+                                           INetURLObject::EncodeMechanism::All);
+
+            bool bCopyTo = GetCreateMode() == SfxObjectCreateMode::EMBEDDED;
+            if (!bCopyTo)
+            {
+                if (const SfxBoolItem* pSaveToItem
+                    = SfxItemSet::GetItem(rMedium.GetItemSet(), SID_SAVETO, false))
+                    bCopyTo = pSaveToItem->GetValue();
+            }
 
-        uno::Reference<sdb::XDocumentDataSource> xDataSource(xDatabaseContext->getByName(aURL), uno::UNO_QUERY);
-        uno::Reference<frame::XStorable> xStorable(xDataSource->getDatabaseDocument(), uno::UNO_QUERY);
-        SwDBManager::StoreEmbeddedDataSource(xStorable, rMedium.GetOutputStorage(),
-                                             pMgr->getEmbeddedName(),
-                                             rMedium.GetName(), bCopyTo);
+            auto xDatabaseContext = sdb::DatabaseContext::create(xContext);
+            uno::Reference<sdb::XDocumentDataSource> xDataSource(xDatabaseContext->getByName(aURL),
+                                                                 uno::UNO_QUERY);
+            if (xDataSource)
+            {
+                uno::Reference<frame::XStorable> xStorable(xDataSource->getDatabaseDocument(),
+                                                           uno::UNO_QUERY);
+                SwDBManager::StoreEmbeddedDataSource(xStorable, rMedium.GetOutputStorage(),
+                                                     pMgr->getEmbeddedName(), rMedium.GetName(),
+                                                     bCopyTo);
+            }
+        }
     }
 
     // #i62875#