--- loncom/lonnet/perl/lonnet.pm	2023/11/18 14:33:07	1.1519
+++ loncom/lonnet/perl/lonnet.pm	2023/12/23 02:17:39	1.1520
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1519 2023/11/18 14:33:07 raeburn Exp $
+# $Id: lonnet.pm,v 1.1520 2023/12/23 02:17:39 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2757,8 +2757,7 @@ sub get_domain_defaults {
                                   'selfenrollment','coursecategories',
                                   'ssl','autoenroll','trust',
                                   'helpsettings','wafproxy',
-                                  'ltisec','toolsec','domexttool',
-                                  'exttool','privacy'],$domain);
+                                  'ltisec','toolsec','privacy'],$domain);
     my @coursetypes = ('official','unofficial','community','textbook','placement');
     if (ref($domconfig{'defaults'}) eq 'HASH') {
         $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'}; 
@@ -2854,6 +2853,11 @@ sub get_domain_defaults {
             } else {
                 $domdefaults{$type.'exttool'} = 0;
             }
+            if (ref($domconfig{'coursedefaults'}{'crsauthor'}) eq 'HASH') {
+                $domdefaults{$type.'crsauthor'} = $domconfig{'coursedefaults'}{'crsauthor'}{$type};
+            } else {
+                $domdefaults{$type.'crsauthor'} = 1;
+            }
         }
         if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') {
             if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') {
@@ -9216,6 +9220,22 @@ sub constructaccess {
             if (($ownername eq $env{'course.'.$env{'request.course.id'}.'.num'}) &&
                 ($ownerdomain eq $env{'course.'.$env{'request.course.id'}.'.domain'})) {
                 if (&allowed('mdc',$env{'request.course.id'})) {
+                    return if ($env{'course.'.$env{'request.course.id'}.'.internal.crsauthor'} eq '0');
+                    unless ($env{'course.'.$env{'request.course.id'}.'.internal.crsauthor'}) {
+                        my %domdefs = &get_domain_defaults($ownerdomain);
+                        my $type = lc($env{'course.'.$env{'request.course.id'}.'.type'});
+                        unless (($type eq 'community') || ($type eq 'placement')) {
+                            $type = 'unofficial';
+                            if ($env{'course.'.$env{'request.course.id'}.'internal.coursecode'} ne '') {
+                                $type = 'official';
+                            } elsif ($env{'course.'.$env{'request.course.id'}.'internal.textbook'} ne '') {
+                                $type = 'textbook';
+                            } else {
+                                $type = 'unofficial';
+                            }
+                        }
+                        return if ($domdefs{$type.'crsauthor'} eq '0');
+                    }
                     $ownerhome = $env{'course.'.$env{'request.course.id'}.'.home'};
                     return ($ownername,$ownerdomain,$ownerhome);
                 }