--- loncom/interface/portfolio.pm	2021/11/30 15:55:37	1.265
+++ loncom/interface/portfolio.pm	2023/12/28 15:57:27	1.267
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # portfolio browser
 #
-# $Id: portfolio.pm,v 1.265 2021/11/30 15:55:37 raeburn Exp $
+# $Id: portfolio.pm,v 1.267 2023/12/28 15:57:27 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -267,13 +267,16 @@ sub display_directory_line {
 
 sub display_directory {
     my ($r,$url,$current_path,$is_empty,$dir_list,$group,$can_upload,
-        $can_modify,$can_delete,$can_setacl)=@_;
+        $can_modify,$can_delete,$can_setacl,$can_viewacl)=@_;
     my $iconpath= $r->dir_config('lonIconsURL') . "/";
     my $select_mode;
     my $checked_files;
     my $port_path = &get_port_path();
     my ($uname,$udom) = &get_name_dom($group);
-    my $access_admin_text = &mt('View Status');
+    my $access_admin_text;
+    if ($can_viewacl) {
+        $access_admin_text = &mt('View Status');
+    }
     if ($can_setacl) {
         $access_admin_text = &mt('View/Change Status');
     }
@@ -514,7 +517,7 @@ sub display_directory {
 		    }
 		}
                 &display_directory_line($r,$select_mode, $filename, $mtime, $size, $css_class, $line, 
-                                        \%access_controls, $curr_access,$now, $version_flag, $href_location, 
+                                        \%access_controls, $curr_access, $now, $version_flag, $href_location, 
                                         $url, $current_path, $access_admin_text);
 		if ($show_versions) {
 		    foreach my $dir_line (@{ $versioned{$fullpath} }) {
@@ -887,7 +890,7 @@ sub access_for_renamed {
 }
 
 sub display_access {
-    my ($r,$url,$group,$can_setacl,$port_path,$action) = @_;
+    my ($r,$url,$group,$can_setacl,$can_viewacl,$port_path,$action) = @_;
     my ($uname,$udom) = &get_name_dom($group);
     my $file_name = $env{'form.currentpath'}.$env{'form.access'};
     $file_name = &prepend_group($file_name);
@@ -897,6 +900,8 @@ sub display_access {
     my $aclcount = keys(%access_controls);
     my ($header,$info);
     if ($action eq 'chgaccess') {
+        my $uhome = &Apache::lonnet::homeserver($uname,$udom);
+        my $prefix = &Apache::lonnet::url_prefix($r,$udom,$uhome,'web');
         $header =
             '<h2>'
             .&mt('Allowing others to retrieve file: [_1]'
@@ -909,13 +914,13 @@ sub display_access {
         $info .= '</li><li>'.&mt('Passphrase-protected files do not require log-in, but will require the viewer to enter the passphrase you set.');
         $info .= '</li><li>'.&explain_conditionals();
         $info .= '</li></ul>'.
-                  &mt('A listing of files viewable without log-in is available at: ')."<a href=\"/adm/$udom/$uname/aboutme/portfolio\">".&Apache::lonnet::absolute_url()."/adm/$udom/$uname/aboutme/portfolio</a>.<br />";
+                  &mt('A listing of files viewable without log-in is available at: ')."<a href=\"$prefix/adm/$udom/$uname/aboutme/portfolio\">$prefix/adm/$udom/$uname/aboutme/portfolio</a>.<br />";
         if ($group eq '') {
             $info .= &mt("For logged in users a 'Display file listing' link will also appear (when there are viewable files) on your personal information page:");
         } else {
             $info .= &mt("For logged in users a 'Display file listing' link will also appear (when there are viewable files) on the course information page:");
         }
-        $info .= "<br /><a href=\"/adm/$udom/$uname/aboutme\">".&Apache::lonnet::absolute_url()."/adm/$udom/$uname/aboutme</a><br />";
+        $info .= "<br /><a href=\"$prefix/adm/$udom/$uname/aboutme\">$prefix/adm/$udom/$uname/aboutme</a><br />";
         if ($group ne '') {
             $info .= &mt("Users with course editing rights may add a 'Group Portfolio' item using the Course Editor (Collaboration tab), to provide access to viewable group portfolio files.").'<br />';
         }
@@ -936,13 +941,21 @@ sub display_access {
                         'cancel' => &mt('Return to directory'),
                       };
         &close_form($r,$url,$button_text);
-    } else {
+    } elsif ($can_viewacl) {
         $r->print($header);
         if ($aclcount) {  
             $r->print($info);
         }
         &view_access_settings($r,$url,$access_controls{$file_name},$aclcount);
+    } else {
+        $r->print($header);
+        $r->print(&mt('You do not have sufficient privileges to view access controls').'<br />');
     }
+    my %anchor_fields = (
+        'currentpath' => $env{'form.currentpath'}
+    );
+    $r->print('<br />'.&make_anchor($url, \%anchor_fields, &mt('Return to directory')));
+    return;
 }
 
 sub explain_conditionals {
@@ -2513,6 +2526,7 @@ sub missing_priv {
                       delete => 'delete files',
                       rename => 'rename files',
                       setacl => 'set access controls for files',
+                      viewacl => 'view access controls for files',
     );
     my $escpath = &HTML::Entities::encode($env{'form.currentpath'},'&<>"');
     my $rtnlink = '<a href="'.$url;
@@ -2668,7 +2682,7 @@ sub handler {
         $url = $1.$2;
         $caller = $2;
     }
-    my ($can_modify,$can_delete,$can_upload,$can_setacl);
+    my ($can_modify,$can_delete,$can_upload,$can_setacl,$can_viewacl);
     if ($caller eq 'coursegrp_portfolio') {
     #  Needs to be in a course
         if (! ($env{'request.course.fn'})) {
@@ -2712,6 +2726,7 @@ sub handler {
             $can_delete = 1;
             $can_upload = 1;
             $can_setacl = 1;
+            $can_viewacl = 1;
         } else {
             if (&Apache::lonnet::allowed('agf',$env{'request.course.id'}.'/'.$group)) {
                 $can_setacl = 1;
@@ -2725,6 +2740,9 @@ sub handler {
             if (&Apache::lonnet::allowed('dgf',$env{'request.course.id'}.'/'.$group)) {
                 $can_delete = 1;
             }
+            if (&Apache::lonnet::allowed('rgf',$env{'request.course.id'}.'/'.$group)) {
+                $can_viewacl = 1;
+            }
         }
     } else {
         ($uname,$udom) = &get_name_dom();
@@ -2733,7 +2751,11 @@ sub handler {
         $can_modify = 1;
         $can_delete = 1;
         $can_upload = 1;
-        $can_setacl = 1;
+        if (&Apache::lonnet::usertools_access('','','portaccess',
+                                              undef,'tools')) {
+            $can_viewacl = 1;
+            $can_setacl = 1;
+        }
     }
 
     my $port_path = &get_port_path();
@@ -2914,10 +2936,14 @@ sub handler {
         }
     } elsif ($env{'form.access'}) {
         $env{'form.selectfile'} = $env{'form.access'};
-        if (!defined($env{'form.action'})) { 
+        if (!defined($env{'form.action'})) {
             $env{'form.action'} = 'chgaccess';
         }
-        &display_access($r,$url,$group,$can_setacl,$port_path,$env{'form.action'});
+        if (($can_viewacl) || ($can_setacl)) {
+            &display_access($r,$url,$group,$can_setacl,$can_viewacl,$port_path,$env{'form.action'});
+        } else {
+            &missing_priv($r,$url,'viewacl');
+        }
     } elsif (($env{'form.action'} eq 'chgaccess') || 
              ($env{'form.action'} eq 'chgconditions')) {
         if ($can_setacl) {
@@ -2991,7 +3017,8 @@ sub handler {
 	&display_common($r,$url,$current_path,$is_empty,$dirlistref,
 			$can_upload,$group);
         &display_directory($r,$url,$current_path,$is_empty,$dirlistref,$group,
-                           $can_upload,$can_modify,$can_delete,$can_setacl);
+                           $can_upload,$can_modify,$can_delete,$can_setacl,
+                           $can_viewacl);
     }
     $r->print(&Apache::loncommon::end_page());
     return OK;