don't let empty strings kill the server (postgresql and apache)

diff --git a/planetlab/common/adminsearch.php b/planetlab/common/adminsearch.php
index 37fbe56..ee2da8f 100644 (file)
--- a/planetlab/common/adminsearch.php
+++ b/planetlab/common/adminsearch.php
@@ -33,7 +33,11 @@ if ( ! plc_is_admin()) {
 $pattern="";
 if (isset($_GET['pattern'])) { $pattern=$_GET['pattern']; }
 if (isset($_POST['pattern'])) { $pattern=$_POST['pattern']; }
+
 $tokens=split(" ",$pattern);
+function token_filter ($t) { $t = trim($t); if (empty($t)) return false; return true; }
+$tokens=array_filter($tokens, "token_filter");
+
 
 ////////////////////
 // from a single search form, extract all tokens entered