--- loncom/interface/lonconfigsettings.pm	2022/02/01 23:13:19	1.56
+++ loncom/interface/lonconfigsettings.pm	2022/02/06 21:36:59	1.57
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: lonconfigsettings.pm,v 1.56 2022/02/01 23:13:19 raeburn Exp $
+# $Id: lonconfigsettings.pm,v 1.57 2022/02/06 21:36:59 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -291,10 +291,27 @@ $jscript
             if (grep(/^linkprotection$/,@actions)) {
                 if (ref($values) eq 'HASH') {
                     if (ref($values->{'linkprotection'}) eq 'HASH') {
+                        my $ltiauth;
+                        if (exists($env{'course.'.$env{'request.course.id'}.'.internal.ltiauth'})) {
+                            $ltiauth = $env{'course.'.$env{'request.course.id'}.'.internal.ltiauth'};
+                        } else {
+                            my %domdefs = &Apache::lonnet::get_domain_defaults($dom);
+                            $ltiauth = $domdefs{'crsltiauth'};
+                        }
                         my $posslti = scalar(keys(%{$values->{'linkprotection'}}));
-                        for (my $i=0; $i<$posslti; $i++) {
-                            if ($values->{'linkprotection'}->{'usable'}) {
-                                $onload .= "toggleLTI(document.display,'$i','secret');";
+                        for (my $i=0; $i<=$posslti; $i++) {
+                            my $num = $i;
+                            if ($i == $posslti) {
+                                $num = 'add';
+                            }
+                            if (ref($values->{'linkprotection'}->{$i}) eq 'HASH') {
+                                if ($values->{'linkprotection'}->{$i}->{'usable'}) {
+                                    $onload .= "toggleLTI(document.display,'$num','secret');";
+                                }
+                            } 
+                            if ($ltiauth) {
+                                $onload .= "toggleLTIReqUser(document.display,'requser','optional','1','block','$num');".
+                                           "toggleLTIReqUser(document.display,'mapuser','userfield','other','inline-block','$num');";
                             }
                         }
                     }