URL Viewer : apply crawler size limits when adding to local index.

This allow large files parsing and preview, while preventing unwanted
OutOfMemory errors which are likely to occur when adding to the Solr
Index resources larger than configured crawler limits.

htroot/ViewFile.java

@@ -363,10 +363,15 @@ public class ViewFile {
                 prop.put("showSnippet_teasertext", desc);
                 prop.put("showSnippet", 1);
             }
-            // update index with parsed resouce if index entry is older or missing
+            // update index with parsed resource if index entry is older or missing
+			final long responseSize = response.size();
 			if (urlEntry == null || urlEntry.loaddate().before(response.lastModified())) {
+				/* Also check resource size is lower than configured crawler limits */
+				if (responseSize >= 0
+						&& responseSize <= Switchboard.getSwitchboard().loader.protocolMaxFileSize(response.url())) {
 					Switchboard.getSwitchboard().toIndexer(response);
 				}
+			}
             if (document != null) document.close();
         }
         prop.put("error", "0");