--- loncom/lonnet/perl/lonnet.pm	2009/11/28 21:33:57	1.1045
+++ loncom/lonnet/perl/lonnet.pm	2010/02/21 02:38:31	1.1050
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1045 2009/11/28 21:33:57 raeburn Exp $
+# $Id: lonnet.pm,v 1.1050 2010/02/21 02:38:31 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1353,7 +1353,8 @@ sub get_domain_defaults {
     my %domdefaults;
     my %domconfig =
          &Apache::lonnet::get_dom('configuration',['defaults','quotas',
-                                  'requestcourses','inststatus'],$domain);
+                                  'requestcourses','inststatus',
+                                  'coursedefaults'],$domain);
     if (ref($domconfig{'defaults'}) eq 'HASH') {
         $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'}; 
         $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
@@ -1388,6 +1389,11 @@ sub get_domain_defaults {
             $domdefaults{$item} = $domconfig{'inststatus'}{$item};
         }
     }
+    if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
+        foreach my $item ('canuse_pdfforms') {
+            $domdefaults{$item} = $domconfig{'coursedefaults'}{$item};
+        }
+    }
     &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
                                   $cachetime);
     return %domdefaults;
@@ -1722,6 +1728,9 @@ sub userenvironment {
     unless ($uhome eq 'no_host') {
         my @answer=split(/\&/, 
             &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
+        if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
+            return %returnhash;
+        }
         my $i;
         for ($i=0;$i<=$#what;$i++) {
 	    $returnhash{$what[$i]}=&unescape($answer[$i]);
@@ -4029,13 +4038,6 @@ sub role_status {
                             );
                             my $spec=$$role.'.'.$$where;
                             my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
-                            if ($$role eq 'gr') {
-                                my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
-                                                    $env{'user.name'})=@_;
-                                my ($trole) = split('_',$role,1);
-                                (undef,my $group_privs) = split(/\//,$trole);
-                                $group_privs = &unescape($group_privs);
-                            }
                             if ($$role =~ /^cr\//) {
                                 &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
                             } elsif ($$role eq 'gr') {
@@ -4811,6 +4813,27 @@ sub usertools_access {
     }
 }
 
+sub is_course_owner {
+    my ($cdom,$cnum,$udom,$uname) = @_;
+    if (($udom eq '') || ($uname eq '')) {
+        $udom = $env{'user.domain'};
+        $uname = $env{'user.name'};
+    }
+    unless (($udom eq '') || ($uname eq '')) {
+        if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
+            if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
+                return 1;
+            } else {
+                my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
+                if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
+                    return 1;
+                }
+            }
+        }
+    }
+    return;
+}
+
 sub is_advanced_user {
     my ($udom,$uname) = @_;
     my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
@@ -6142,7 +6165,7 @@ sub devalidate_getgroups_cache {
 
 sub plaintext {
     my ($short,$type,$cid,$forcedefault) = @_;
-    if ($short =~ /^cr/) {
+    if ($short =~ m{^cr/}) {
 	return (split('/',$short))[-1];
     }
     if (!defined($cid)) {