disallow empty searches

diff --git a/includes/SearchEngine.php b/includes/SearchEngine.php
index a04c3ea..930ab83 100644 (file)
--- a/includes/SearchEngine.php
+++ b/includes/SearchEngine.php
@@ -250,6 +250,9 @@ class SearchEngine {
 
        function parseQuery() {
                global $wgDBmysql4;
+               if (strlen($this->filteredText) < 1)
+                       return MW_SEARCH_BAD_QUERY;
+
                if( $wgDBmysql4 ) {
                        # Use cleaner boolean search if available
                        return $this->parseQuery4();