Index: trunk/pstamp/scripts/pstamp_parser_run.pl
===================================================================
--- trunk/pstamp/scripts/pstamp_parser_run.pl	(revision 34232)
+++ trunk/pstamp/scripts/pstamp_parser_run.pl	(revision 35364)
@@ -158,8 +158,10 @@
 my $request_fault = $PSTAMP_INVALID_REQUEST;
 
+my $action = 'PROCESS';
+
 if (-r $uri) {
     # run the appropriate parse command to parse the queue the jobs for this request
     # first check the extension header to find the EXTNAME
-    $request_type = find_request_type($uri);
+    $request_type = find_request_type($uri, \$action);
 
     if ($request_type) {
@@ -240,5 +242,11 @@
 
     if ($success) {
-        $newState = 'run';
+        if ($action eq 'PROCESS') {
+            $newState = 'run';
+        } elsif ($action eq 'PREVIEW') {
+            $newState = 'parsed';
+        } else {
+            print STDERR "WARNING Ignoring unexpected value for ACTION found in request header: $action\n";
+        }
     } else {
         $fault = $error_code >> 8;
@@ -275,9 +283,13 @@
     # find the EXTNAME in the input fits table
     my $file_name = shift;
-    my $out = `echo $file_name | fields -x 0 EXTNAME`;
+    my $r_action = shift;
+
+    my $out = `echo $file_name | fields -x 0 EXTNAME ACTION`;
 
     if ($out) {
         # output from fields is filename value
-        my ($dummy, $extname) = split " ", $out;
+        my ($dummy, $extname, $action) = split " ", $out;
+
+        $$r_action = $action if ($action);
 
         return $extname;