--- loncom/auth/lonacc.pm	2009/07/23 17:40:29	1.126
+++ loncom/auth/lonacc.pm	2009/07/23 18:45:39	1.127
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Cookie Based Access Handler
 #
-# $Id: lonacc.pm,v 1.126 2009/07/23 17:40:29 raeburn Exp $
+# $Id: lonacc.pm,v 1.127 2009/07/23 18:45:39 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -281,13 +281,11 @@ sub sso_login {
     my $query = $r->args;
     my %form;
     if ($query) {
-        foreach my $pair (split(/&/,$query)) {
-            my ($name, $value) = split(/=/,$pair);
-            $name = &unescape($name);
-            if (($name eq 'role') || ($name eq 'symb')) {
-                $value =~ tr/+/ /;
-                $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
-                $form{$name} = $value;
+        my @items = ('role','symb');
+        &Apache::loncommon::get_unprocessed_cgi($query,\@items);
+        foreach my $item (@items) {
+            if (defined($env{'form.'.$item})) {
+                $form{$item} = $env{'form.'.$item};
             }
         }
     }
@@ -299,7 +297,7 @@ sub sso_login {
 	if ($r->dir_config("lonBalancer") eq 'yes') {
 	    # login but immeaditly go to switch server to find us a new 
 	    # machine
-	    &Apache::lonauth::success($r,$user,$domain,$home,'noredirect','',\%form);
+	    &Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
             $env{'request.sso.login'} = 1;
             if (defined($r->dir_config("lonSSOReloginServer"))) {
                 $env{'request.sso.reloginserver'} =