--- loncom/interface/lonindexer.pm	2014/12/20 15:35:40	1.223
+++ loncom/interface/lonindexer.pm	2025/03/18 19:36:59	1.232
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Directory Indexer
 #
-# $Id: lonindexer.pm,v 1.223 2014/12/20 15:35:40 raeburn Exp $
+# $Id: lonindexer.pm,v 1.232 2025/03/18 19:36:59 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -94,6 +94,7 @@ sub handler {
 
 # --------------------------------------------------------------- get icon path
     my $iconpath= $r->dir_config('lonIconsURL') . "/";
+    my $defdom = &Apache::lonnet::default_login_domain();
 
 #SB my $fileclr='#ffffe6';
     my $line;
@@ -565,7 +566,7 @@ END
 	    } else {
 		$r->print($reshome);
 	    }
-	    $r->print("'>".&mt('Home').'</a></span>');
+	    $r->print("'>".&mt('Home directory').'</a></span>');
 	}
 	$r->print('</form>');
 # ------------------------------------------------------ Remember where we were
@@ -583,7 +584,7 @@ END
         $r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
                  .&Apache::loncommon::start_data_table_header_row());
 	$r->print("<th $colspan>".&mt('Name')."</th>\n");
-	$r->print("<th></th>\n");
+	$r->print('<th><span class="LC_visually_hidden">'.&mt('Add to Stored Links')."</span></th>\n");
 	$r->print("<th>".&mt('Title')."</th>\n") 
 	    if ($hash{'display_attrs_0'} == 1);
 	$r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
@@ -664,12 +665,12 @@ END
 	    pop @uri_com;
 	    my $upone = join('/',@uri_com);
 	    my @list = qw (0);
-	    &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
+	    &display_line ($r,$defdom,'opened',$upone.'&viewOneUp',0,$upone,@list);
 	    $indent = 1;
 	}
 
 # -------- recursively go through all the directories and output as appropriate
-	&scanDir ($r,$toplevel,$indent,\%hash);
+	&scanDir ($r,$toplevel,$indent,\%hash,$defdom);
 
 # -------------------------------------------------------------- end the tables
         $r->print(&Apache::loncommon::end_data_table());
@@ -697,7 +698,7 @@ END
 
 # ----------------------------------------------- recursive scan of a directory
 sub scanDir {
-    my ($r,$startdir,$indent,$hashref)=@_;
+    my ($r,$startdir,$indent,$hashref,$defdom)=@_;
     my $c = $r->connection();
     my ($compuri,$curdir);
     my $dirptr=16384;
@@ -709,7 +710,20 @@ sub scanDir {
         return if ($c->aborted());
 	#This is a kludge, sorry aboot this
 	my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16); 
-	next if($strip =~ /.*\.meta$/ | $obs eq '1');
+	next if (($strip =~ /\.meta$/) || ($obs));
+        if ($dom ne 'domain') {
+            my ($udom,$uname);
+            if ($dom eq 'user') {
+                ($udom) = ($startdir =~ m{^/res/($match_domain)});
+                $uname = $strip;
+            } else {
+                ($udom,$uname) = ($startdir =~ m{^/res/($match_domain)/($match_courseid)});
+            }
+            if ($udom ne '' && $uname ne '') {
+                # Don't display "course author" directory.
+                next if (&Apache::lonnet::is_course($udom,$uname));
+            }
+        }
 	my (@fileparts) = split(/\./,$strip);
 	if ($hash{'display_attrs_9'} != 1) {
             # if not all versions to be shown
@@ -740,8 +754,8 @@ sub scanDir {
 		}
 	    }
 	}
-	&display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
-	&scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
+	&display_line($r,$defdom,$diropen,$line,$indent,$curdir,$hashref,@list);
+	&scanDir ($r,$compuri,$indent,undef,$defdom) if $diropen eq 'opened';
     }
     $indent--;
 }
@@ -871,7 +885,7 @@ sub match_ext {
 
 # ------------------------------- displays one line in appropriate table format
 sub display_line {
-    my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
+    my ($r,$defdom,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
     my (@pathfn, $fndir);
 # there could be relative paths (files actually belonging into this directory)
 # or absolute paths (for example, from sequences)
@@ -937,6 +951,15 @@ sub display_line {
 # Do we have permission to look at this?
     if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
 
+    if (($filecom[1] eq 'domain') && ($defdom ne $listname)) {
+        unless (&Apache::lonnet::will_trust('shared',$listname,$defdom)) {
+            return OK;   
+        }
+        unless (&Apache::lonnet::will_trust('content',$defdom,$listname)) {
+            return OK;
+        }
+    }
+
 # make absolute links appear on different background
 #SB    if ($absolute) { $fileclr='#ccdd99'; }
 
@@ -971,7 +994,17 @@ $r->print ('<input type="hidden" name="a
 
 # display user directory
     }
+
     if ($filecom[1] eq 'user') {
+        my $domain=(split(m|/|,$startdir))[2];
+        if ($defdom ne $domain) {
+            unless (&Apache::lonnet::will_trust('shared',$domain,$defdom)) {
+                return OK;
+            }
+            unless (&Apache::lonnet::will_trust('content',$defdom,$domain)) {
+                return OK;
+            }
+        }
 	# $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
 	my $curdir = $startdir.$filecom[0].'/';
 	my $anchor = $curdir;
@@ -1088,8 +1121,13 @@ $r->print ('<input type="hidden" name="a
 	my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
         my $quotable_startdir = Apache::loncommon::escape_single($startdir);
         my $quotable_listname = &Apache::loncommon::escape_single($listname);
+        my $curfext = lc((split(/\./,$listname))[-1]);
+        my $modalstyle;
+        if ($curfext =~ /^js|css|txt|tab$/) {
+            $modalstyle = ",'','background-color:#ffffff'";
+        }
 
-	$r->print (" <a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">$listname</a> ");
+	$r->print (" <a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes'".$modalstyle.");\">$listname</a> ");
 	$quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
 	&Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
 	$r->print (" (<a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">".&mt('metadata')."</a>) ");