ZP-783 Catch StatusException when loading conflicts.

Released under the Affero GNU General Public License (AGPL) version 3.

src/backend/zarafa/importer.php

@@ -311,17 +311,23 @@ class ImportChangesICS implements IImportChanges {
             $potConflicts = $exporter->GetChangeCount();
             $started = time();
             $exported = 0;
-            while(is_array($exporter->Synchronize())) {
-                $exported++;
-
-                // stop if this takes more than 15 seconds and there are more than 5 changes still to be exported
-                // within 20 seconds this should be finished or it will not be performed
-                if ((time() - $started) > 15 && ($potConflicts - $exported) > 5 ) {
-                    ZLog::Write(LOGLEVEL_WARN, sprintf("ImportChangesICS->lazyLoadConflicts(): conflict detection cancelled as operation is too slow. In %d seconds only %d from %d changes were processed.",(time() - $started), $exported, $potConflicts));
-                    $this->conflictsLoaded = true;
-                    return;
+            try {
+                while(is_array($exporter->Synchronize())) {
+                    $exported++;
+
+                    // stop if this takes more than 15 seconds and there are more than 5 changes still to be exported
+                    // within 20 seconds this should be finished or it will not be performed
+                    if ((time() - $started) > 15 && ($potConflicts - $exported) > 5 ) {
+                        ZLog::Write(LOGLEVEL_WARN, sprintf("ImportChangesICS->lazyLoadConflicts(): conflict detection cancelled as operation is too slow. In %d seconds only %d from %d changes were processed.",(time() - $started), $exported, $potConflicts));
+                        $this->conflictsLoaded = true;
+                        return;
+                    }
                 }
             }
+            // something really bad happened while exporting changes
+            catch (StatusException $stex) {
+                ZLog::Write(LOGLEVEL_WARN, sprintf("ImportChangesICS->lazyLoadConflicts(): got StatusException code %d while exporting changes. Ignoring and mark conflicts as loaded.",$stex->getCode()));
+            }
             $this->conflictsLoaded = true;
         }
     }