--- loncom/interface/lonmenu.pm	2016/10/26 15:12:46	1.369.2.60
+++ loncom/interface/lonmenu.pm	2019/07/27 16:25:41	1.369.2.75
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Routines to control the menu
 #
-# $Id: lonmenu.pm,v 1.369.2.60 2016/10/26 15:12:46 raeburn Exp $
+# $Id: lonmenu.pm,v 1.369.2.75 2019/07/27 16:25:41 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -384,6 +384,7 @@ sub secondary_menu {
                                                ? "/$env{'request.course.sec'}"
                                                : '');
     my $canedit       = &Apache::lonnet::allowed('mdc', $env{'request.course.id'});
+    my $canvieweditor = &Apache::lonnet::allowed('cev', $env{'request.course.id'}); 
     my $canviewroster = $env{'course.'.$env{'request.course.id'}.'.student_classlist_view'};
     if ($canviewroster eq 'disabled') {
         undef($canviewroster);
@@ -402,7 +403,7 @@ sub secondary_menu {
     if ($env{'request.course.id'}) {
         $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
         $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
-        unless ($canedit) {
+        unless ($canedit || $canvieweditor) {
             unless (&Apache::lonnet::is_on_map("public/$cdom/$cnum/syllabus")) {
                 if (($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'}) ||
                     ($env{'course.'.$env{'request.course.id'}.'.uploadedsyllabus'}) ||
@@ -415,7 +416,7 @@ sub secondary_menu {
                 $showfeeds = 1;
             }
         }
-        unless (($canmgr) || ($canvgr)) {
+        unless ($canmgr || $canvgr) {
             my %slots = &Apache::lonnet::get_course_slots($cnum,$cdom);
             if (keys(%slots) > 0) {
                 $showresv = 1;
@@ -445,11 +446,11 @@ sub secondary_menu {
         next if    $$menuitem[4]   ne 'always'
                 && ($$menuitem[4]  ne 'author' && $$menuitem[4] ne 'cca')
                 && !$env{'request.course.id'};
-        next if    $$menuitem[4]   =~ /^mdc/
-                && !$canedit;
-        next if    $$menuitem[4]  eq 'mdcCourse'
+        next if    $$menuitem[4]   =~ /^crsedit/
+                && (!$canedit && !$canvieweditor);
+        next if    $$menuitem[4]  eq 'crseditCourse'
                 && ($crstype eq 'Community');
-        next if    $$menuitem[4]  eq 'mdcCommunity'
+        next if    $$menuitem[4]  eq 'crseditCommunity'
                 && ($crstype eq 'Course');
         next if    $$menuitem[4]  eq 'nvgr'
                 && $canvgr;
@@ -497,7 +498,10 @@ sub secondary_menu {
                         next if ($item->[2] eq 'viewusers' && !($canmodifyuser || $canviewusers));
                         next if ($item->[2] eq 'mgr' && !$canmgr);
                         next if ($item->[2] eq 'vcg' && !$canviewgrps);
-                        next if ($item->[2] eq 'mdc' && !$canedit);
+                        next if ($item->[2] eq 'crsedit' && !$canedit && !$canvieweditor);
+                        next if ($item->[2] eq 'params' && !$canmodpara && !$canviewpara);
+                        next if ($item->[2] eq 'author' && !$author);
+                        next if ($item->[2] eq 'cca' && !$canmodifycoauthor);
                         push(@scndsub,$item); 
                     }
                 }
@@ -521,12 +525,25 @@ sub secondary_menu {
                 my $url = $$menuitem[0];
                 $url =~ s{\[cdom\]/\[cnum\]}{$cdom/$cnum};
                 if (&Apache::lonnet::is_on_map($url)) {
-                    unless ($$menuitem[0] =~ /\?register=1/) {
-                        $$menuitem[0] .= '?register=1';
+                    unless ($$menuitem[0] =~ /(\?|\&)register=1/) {
+                        $$menuitem[0] .= (($$menuitem[0]=~/\?/)? '&' : '?').'register=1';
                     }
                 } else {
-                    $$menuitem[0] =~ s{\?register=1}{};
+                    $$menuitem[0] =~ s{\&?register=1}{};
                 }
+                if ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://}) {
+                    if (($ENV{'SERVER_PORT'} == 443) || ($env{'request.use_absolute'} =~ m{^https://})) {
+                        unless (&Apache::lonnet::uses_sts()) {
+                            unless ($$menuitem[0] =~ m{^https?://}) {
+                                $$menuitem[0] = 'http://'.$ENV{'SERVER_NAME'}.$$menuitem[0];
+                            }
+                            unless ($$menuitem[0] =~ /(\&|\?)usehttp=1/) {
+                                $$menuitem[0] .= (($$menuitem[0]=~/\?/) ? '&' : '?').'usehttp=1';
+                            }
+                        }
+                    }
+                }
+                $$menuitem[0] = &HTML::Entities::encode($$menuitem[0],'&<>"');
             }
             $menu .= &prep_menuitem(\@$menuitem);
         }
@@ -545,7 +562,7 @@ sub secondary_menu {
             my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
             ($escurl = $env{'request.filename'}) =~ s{^\Q$londocroot\E}{};
             $escurl  = &escape($escurl);
-        }    
+        }
         $menu =~ s/\[url\]/$escurl/g;
         $menu =~ s/\[symb\]/$escsymb/g;
     }
@@ -634,6 +651,20 @@ sub build_submenu {
                     next unless (($env{'user.name'} ne '') && ($env{'user.domain'} ne ''));
                     $href =~ s/\[domain\]/$env{'user.domain'}/g;
                     $href =~ s/\[user\]/$env{'user.name'}/g;
+                } elsif (($href =~ m{^/adm/preferences\?}) && ($href =~ /\[returnurl\]/)) {
+                    my $returnurl = $ENV{'REQUEST_URI'};
+                    if ($ENV{'REQUEST_URI'} =~ m{/adm/preferences\?action=(?:changedomcoord|authorsettings)\&returnurl=([^\&]+)$}) {
+                        $returnurl = $1;
+                    }
+                    if (($returnurl =~ m{^/adm/createuser($|\?action=)}) ||
+                        ($returnurl =~ m{^/priv/$match_domain/$match_username}) ||
+                        ($returnurl =~ m{^/res(/?$|/$match_domain/$match_username)})) {
+                        $returnurl =~ s{\?.*$}{};
+                        $returnurl = '&amp;returnurl='.&HTML::Entities::encode($returnurl,'"<>&\'');
+                    } else {
+                        undef($returnurl);
+                    }
+                    $href =~ s/\[returnurl\]/$returnurl/;
                 }
                 unless (($href eq '') || ($href =~ /^\#/)) {
                     $target = ' target="_top"';
@@ -677,7 +708,7 @@ sub registerurl {
 }
 
 sub innerregister {
-    my ($forcereg,$bread_crumbs,$group) = @_;
+    my ($forcereg,$bread_crumbs,$group,$pagebuttonshide,$hostname) = @_;
     my $const_space = ($env{'request.state'} eq 'construct');
     my $is_const_dir = 0;
 
@@ -698,9 +729,13 @@ sub innerregister {
         $newmail= 'swmenu.setstatus("you have","messages");';
     }
 
-    my ($mapurl,$resurl);
+    my ($mapurl,$resurl,$crstype);
 
     if ($env{'request.course.id'}) {
+#
+#course_type:  Course or Community
+#
+        $crstype = &Apache::loncommon::course_type();
         if ($env{'request.symb'}) {
             ($mapurl, my $rid, $resurl) = &Apache::lonnet::decode_symb(&Apache::lonnet::symbread());
             my $coursetitle = $env{'course.'.$env{'request.course.id'}.'.description'};
@@ -708,16 +743,11 @@ sub innerregister {
             my $maptitle = &Apache::lonnet::gettitle($mapurl);
             my $restitle = &Apache::lonnet::gettitle(&Apache::lonnet::symbread());
 
-
-#SD
-#course_type only Course and Community?
-#
             my @crumbs;
             unless (($forcereg) && 
                     ($env{'request.noversionuri'} eq '/adm/navmaps') &&
                     ($mapurl eq $env{'course.'.$env{'request.course.id'}.'.url'})) {
-                @crumbs = ({text  => Apache::loncommon::course_type() 
-                                    . ' Contents', 
+                @crumbs = ({text  => $crstype.' Contents', 
                             href  => "Javascript:gopost('/adm/navmaps','')"});
             }
             if ($mapurl ne $env{'course.'.$env{'request.course.id'}.'.url'}) { 
@@ -745,7 +775,6 @@ sub innerregister {
         } else {
             $resurl = $env{'request.noversionuri'};
             my $courseurl = &Apache::lonnet::courseid_to_courseurl($env{'request.course.id'});
-            my $crstype = &Apache::loncommon::course_type();
             my $title = &mt('View Resource');
             if ($resurl =~ m{^\Q/uploaded$courseurl/supplemental/\E(default|\d+)/}) {
                 &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['folderpath','title']);
@@ -755,7 +784,7 @@ sub innerregister {
                 }
                 my $trail;
                 if ($env{'form.folderpath'}) {
-                    &prepare_functions($resurl,$forcereg,$group,undef,undef,1);
+                    &prepare_functions($resurl,$forcereg,$group,undef,undef,1,$hostname);
                     ($trail) =
                         &Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$title,1);
                 } else {
@@ -770,10 +799,10 @@ sub innerregister {
             } elsif ($resurl =~ m{^\Q/uploaded$courseurl/portfolio/syllabus/}) {
                 &Apache::lonhtmlcommon::clear_breadcrumbs();
                 &prepare_functions('/public'.$courseurl."/syllabus",
-                                   $forcereg,$group,undef,undef,1);
+                                   $forcereg,$group,undef,undef,1,$hostname);
                 $title = &mt('Syllabus File');
                 my ($trail) =
-                    &Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$title,1);
+                    &Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$title,1,$hostname);
                 return $trail;
             }
             unless ($env{'request.state'} eq 'construct') {
@@ -810,7 +839,7 @@ sub innerregister {
             if (($env{'environment.remote'} eq 'on') && ($env{'request.symb'})) {
                 &Apache::lonhtmlcommon::clear_breadcrumbs();
             }
-            $editbutton = &prepare_functions($resurl,$forcereg,$group);
+            $editbutton = &prepare_functions($resurl,$forcereg,$group,'','','',$hostname);
         }
         if ($editbutton eq '') {
             $editbutton = &clear(6,1);
@@ -823,6 +852,7 @@ sub innerregister {
             $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
             $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
             $perms{'mdc'} = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
+            $perms{'cev'} = &Apache::lonnet::allowed('cev',$env{'request.course.id'});
             my @privs;
             if ($env{'request.symb'} ne '') {
                 if ($env{'request.filename'}=~/$LONCAPA::assess_re/) {
@@ -864,7 +894,7 @@ sub innerregister {
 #
 # This applies to items inside a folder/page modifiable in the course.
 #
-            if (($env{'request.symb'}=~/^uploaded/) && ($perms{'mdc'})) {
+            if (($env{'request.symb'}=~/^uploaded/) && (($perms{'mdc'}) || ($perms{'cev'}))) {
                 my $text = 'Edit Folder';
                 if (($mapurl =~ /\.page$/) ||
                     ($env{'request.symb'}=~
@@ -1031,22 +1061,24 @@ ENDMENUITEMS
 	    my $addremote=0;
 	    foreach (@inlineremote) { if ($_ ne '') { $addremote=1; last;} }
             if ($addremote) {
-
-                &Apache::lonhtmlcommon::clear_breadcrumb_tools();
-
-                &Apache::lonhtmlcommon::add_breadcrumb_tool(
-                    'navigation', @inlineremote[21,23]);
-
-                my $countdown;
+                my ($countdown,$buttonshide);
                 if ($env{'request.filename'} =~ /\.page$/) {
                     my %breadcrumb_tools = &Apache::lonhtmlcommon::current_breadcrumb_tools();
                     if (ref($breadcrumb_tools{'tools'}) eq 'ARRAY') {
-                        $countdown = $breadcrumb_tools{'tools'}[0];
+                        $countdown = $breadcrumb_tools{'tools'}->[0];
                     }
+                    $buttonshide = $pagebuttonshide;
                 } else {
                     $countdown = &countdown_timer();
+                    $buttonshide = &hidden_button_check();
                 }
-                if (&hidden_button_check() eq 'yes') {
+
+                &Apache::lonhtmlcommon::clear_breadcrumb_tools();
+
+                &Apache::lonhtmlcommon::add_breadcrumb_tool(
+                    'navigation', @inlineremote[21,23]);
+
+                if ($buttonshide eq 'yes') {
                     if ($countdown) {
                         &Apache::lonhtmlcommon::add_breadcrumb_tool('tools',$countdown);
                     }
@@ -1396,12 +1428,12 @@ ENDOPEN
 }
 
 sub get_editbutton {
-    my ($cfile,$home,$switchserver,$forceedit,$forceview,$forcereg) = @_;
+    my ($cfile,$home,$switchserver,$forceedit,$forceview,$forcereg,$hostname) = @_;
     my $jscall;
     if (($forceview) && ($env{'form.todocs'})) {
-        my ($folderpath,$command);
+        my ($folderpath,$command,$navmap);
         if ($env{'request.symb'}) {
-            $folderpath = &Apache::loncommon::symb_to_docspath($env{'request.symb'});
+            $folderpath = &Apache::loncommon::symb_to_docspath($env{'request.symb'},\$navmap);
         } elsif ($env{'form.folderpath'} =~ /^supplemental/) {
             $folderpath = $env{'form.folderpath'};
             $command = '&forcesupplement=1';
@@ -1409,11 +1441,16 @@ sub get_editbutton {
         $folderpath = &escape(&HTML::Entities::encode(&escape($folderpath),'<>&"'));
         $jscall = "go('/adm/coursedocs?folderpath=$folderpath$command')";
     } else {
+        my $suppanchor;
+        if ($env{'form.folderpath'}) {
+            $suppanchor = $env{'form.anchor'};
+        }
         $jscall = &Apache::lonhtmlcommon::jump_to_editres($cfile,$home,$switchserver,
                                                 $forceedit,$forcereg,$env{'request.symb'},
                                                 &escape($env{'form.folderpath'}),
-                                                &escape($env{'form.title'}),$env{'form.idx'},
-                                                &escape($env{'form.suppurl'},$env{'form.todocs'}));
+                                                &escape($env{'form.title'}),$hostname,
+                                                $env{'form.idx'},&escape($env{'form.suppurl'}),
+                                                $env{'form.todocs'},$suppanchor);
     }
     if ($jscall) {
         my $icon = 'pcstr.png';
@@ -1446,7 +1483,7 @@ sub get_editbutton {
 }
 
 sub prepare_functions {
-    my ($resurl,$forcereg,$group,$bread_crumbs,$advtools,$docscrumbs,$forbodytag) = @_;
+    my ($resurl,$forcereg,$group,$bread_crumbs,$advtools,$docscrumbs,$hostname,$forbodytag) = @_;
     unless ($env{'request.registered'}) {
         undef(@inlineremote);
     }
@@ -1460,8 +1497,9 @@ sub prepare_functions {
     }
 
     my $editbutton = '';
+    my $viewsrcbutton = '';
 #
-# Determine whether or not to display 'Edit' icon/button
+# Determine whether or not to display 'Edit' or 'View Source' icon/button
 #
     if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
         my $file=&Apache::lonnet::declutter($env{'request.filename'});
@@ -1492,9 +1530,13 @@ sub prepare_functions {
 # This applies in course context
 #
         if (($perms{'mdc'}) &&
-            (($resurl eq "/public/$cdom/$cnum/syllabus") ||
-            ($resurl =~ m{^/uploaded/$cdom/$cnum/portfolio/syllabus/}))) {
-            $cfile = $resurl;
+            (($resurl =~ m{^/?public/$cdom/$cnum/syllabus}) ||
+            ($resurl =~ m{^/?uploaded/$cdom/$cnum/portfolio/syllabus/}))) {
+            if ($resurl =~ m{^/}) {
+                $cfile = $resurl;
+            } else {
+                $cfile = "/$resurl";
+            }
             $home = &Apache::lonnet::homeserver($cnum,$cdom);
             if ($env{'form.forceedit'}) {
                 $forceview = 1;
@@ -1502,7 +1544,8 @@ sub prepare_functions {
                 $forceedit = 1;
             }
             $editbutton = &get_editbutton($cfile,$home,$switchserver,
-                                          $forceedit,$forceview,$forcereg);
+                                          $forceedit,$forceview,$forcereg,
+                                          $hostname);
         } elsif (($resurl eq '/adm/extresedit') &&
                  (($env{'form.symb'}) || ($env{'form.folderpath'}))) {
             ($cfile,$home,$switchserver,$forceedit,$forceview) =
@@ -1531,6 +1574,29 @@ sub prepare_functions {
                     $editbutton = &get_editbutton($cfile,$home,$switchserver,
                                                   $forceedit,$forceview,$forcereg);
                 }
+                if ((($cfile eq '') || (!$editbutton)) &&
+                    ($resurl =~ /$LONCAPA::assess_re/)) {
+                    my $showurl = &Apache::lonnet::clutter($resurl);
+                    if ((&Apache::lonnet::allowed('cre','/')) &&
+                        (&Apache::lonnet::metadata($resurl,'sourceavail') eq 'open')) {
+                        $viewsrcbutton = 1;
+                    } elsif (&Apache::lonnet::allowed('vxc',$env{'request.course.id'})) {
+                        if ($showurl =~ m{^\Q/res/$cdom/\E($match_username)/}) {
+                            my $auname = $1;
+                            if (($env{'request.course.adhocsrcaccess'} ne '') &&
+                                (grep(/^\Q$auname\E$/,split(/,/,$env{'request.course.adhocsrcaccess'})))) {
+                                $viewsrcbutton = 1;
+                            } elsif ((&Apache::lonnet::metadata($resurl,'sourceavail') eq 'open') &&
+                                     (&Apache::lonnet::allowed('bre','/'))) {
+                                $viewsrcbutton = 1;
+                            }
+                        }
+                    }
+                    if ($viewsrcbutton) {
+                        &switch('','',6,1,'pcstr.png','View Source','resource[_2]','open_source()',
+                                'View source code');
+                    }
+                }
             }
         }
     }
@@ -1585,10 +1651,18 @@ sub prepare_functions {
              ($resurl =~ m{^/adm/$match_domain/$match_username/aboutme$}))) {
             my @folders=split('&',$env{'form.folderpath'});
             if ((@folders > 2) || ($resurl ne '/adm/supplemental')) {
+                my $suppanchor;
+                if ($resurl =~ m{^/adm/wrapper/ext/}) {
+                    $suppanchor = $env{'form.anchor'};
+                }
                 my $esc_path=&escape(&HTML::Entities::encode(&escape($env{'form.folderpath'}),'<>&"'));
+                my $link = '/adm/coursedocs?command=direct&amp;forcesupplement=1&amp;supppath='.
+                           "$esc_path&amp;anchor=$suppanchor";
+                if ($env{'request.use_absolute'} ne '') {
+                    $link = $env{'request.use_absolute'}.$link;
+                }
                 &switch('','',7,4,'docs-22x22.png','Edit Folder','parms[_2]',
-                        "location.href='/adm/coursedocs?command=direct&amp;forcesupplement=1&amp;supppath=$esc_path'",
-                        'Folder/Page Content','','',1);
+                        "location.href='$link'",'Folder/Page Content');
             }
         }
     }
@@ -2084,14 +2158,18 @@ END
 sub utilityfunctions {
     my ($httphost) = @_;
     my $currenturl=&Apache::lonnet::clutter(&Apache::lonnet::fixversion((split(/\?/,$env{'request.noversionuri'}))[0]));
-    if ($currenturl =~ m{^/adm/wrapper/ext/}
-        && $env{'request.external.querystring'} ) {
+    my $currentsymb=&Apache::lonenc::check_encrypt($env{'request.symb'});
+    if ($currenturl =~ m{^/adm/wrapper/ext/}) {
+        if ($env{'request.external.querystring'}) {
             $currenturl .= ($currenturl=~/\?/)?'&':'?'.$env{'request.external.querystring'};
+        }
+        my ($anchor) = ($env{'request.symb'} =~ /(\#[^\#]+)$/);
+        if (($anchor) && ($currenturl !~ /\Q$anchor\E$/)) {
+            $currenturl .= $1;
+        }
     }
     $currenturl=&Apache::lonenc::check_encrypt(&unescape($currenturl));
     
-    my $currentsymb=&Apache::lonenc::check_encrypt($env{'request.symb'});
-
     my $dc_popup_cid;
     if ($env{'user.adv'} && exists($env{'user.role.dc./'.
                         $env{'course.'.$env{'request.course.id'}.
@@ -2117,6 +2195,10 @@ sub utilityfunctions {
 
     my $countdown = &countdown_toggle_js();
 
+    my $annotateurl = '/adm/annotation';
+    if ($httphost) {
+        $annotateurl = '/adm/annotations';
+    }
     my $hostvar = '
 function setLCHost() {
     var lcHostname="";
@@ -2143,15 +2225,6 @@ return (<<ENDUTILITY)
 
 $dc_popup_cid
 
-function go(url) {
-   if (url!='' && url!= null) {
-       currentURL = null;
-       currentSymb= null;
-       var lcHostname = setLCHost();
-       window.location.href=lcHostname+url;
-   }
-}
-
 $jumptores
 
 function gopost(url,postdata) {
@@ -2254,7 +2327,7 @@ function annotate() {
    annotator.document.write(
    '$start_page_annotate'
   +"<form name='goannotate' target='Annotator' method='post' "
-  +"action='/adm/annotations'>"
+  +"action='$annotateurl'>"
   +"<input type='hidden' name='symbnew' value='"+currentSymb+"' />"
   +"<\\/form>"
   +'$end_page_annotate');
@@ -2347,7 +2420,7 @@ sub roles_selector {
     my ($cdom,$cnum,$httphost) = @_;
     my $crstype = &Apache::loncommon::course_type();
     my $now = time;
-    my (%courseroles,%seccount,%courseprivs);
+    my (%courseroles,%seccount,%courseprivs,%roledesc);
     my $is_cc;
     my ($js,$form,$switcher);
     my $ccrole;
@@ -2356,13 +2429,13 @@ sub roles_selector {
     } else {
         $ccrole = 'cc';
     }
-    my ($priv,$gotsymb,$destsymb);
+    my ($privref,$gotsymb,$destsymb);
     my $destinationurl = $ENV{'REQUEST_URI'};
-    if ($destinationurl =~ /\?symb=/) {
+    if ($destinationurl =~ /(\?|\&)symb=/) {
         $gotsymb = 1;
     } elsif ($destinationurl =~ m{^/enc/}) {
         my $plainurl = &Apache::lonenc::unencrypted($destinationurl);
-        if ($plainurl =~ /\?symb=/) {
+        if ($plainurl =~ /(\?|\&)symb=/) {
             $gotsymb = 1;
         }
     }
@@ -2377,12 +2450,15 @@ sub roles_selector {
         my $destination = $destinationurl;
         $destination =~ s/(\?.*)$//;
         if (exists($reqprivs->{$destination})) {
-            $priv = $reqprivs->{$destination};
+            if ($reqprivs->{$destination} =~ /,/) {
+                @{$privref} = split(/,/,$reqprivs->{$destination});
+            } else {
+                $privref = [$reqprivs->{$destination}];
+            }
         }
     }
     if ($env{'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum}) {
         my ($start,$end) = split(/\./,$env{'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum});
-        
         if ((($start) && ($start<0)) || 
             (($end) && ($end<$now))  ||
             (($start) && ($now<$start))) {
@@ -2392,7 +2468,9 @@ sub roles_selector {
         }
     }
     if ($is_cc) {
-        &get_all_courseroles($cdom,$cnum,\%courseroles,\%seccount,\%courseprivs,$priv);
+        &get_all_courseroles($cdom,$cnum,\%courseroles,\%seccount,\%courseprivs);
+    } elsif ($env{'request.role'} =~ m{^\Qcr/$cdom/$cdom-domainconfig/\E(\w+)\.\Q/$cdom/$cnum\E}) {
+        &get_customadhoc_roles($cdom,$cnum,\%courseroles,\%seccount,\%courseprivs,\%roledesc,$privref);
     } else {
         my %gotnosection;
         foreach my $item (keys(%env)) {
@@ -2408,7 +2486,7 @@ sub roles_selector {
                         $gotnosection{$role} = 1;
                     }
                 }
-                if ($priv ne '') {
+                if ((ref($privref) eq 'ARRAY') && (@{$privref} > 0)) {
                     my $cnumsec = $cnum;
                     if ($sec ne '') {
                         $cnumsec .= "/$sec";
@@ -2446,7 +2524,7 @@ sub roles_selector {
     }
     if ((keys(%seccount) > 1) || ($numdiffsec > 1)) {
         my @submenu;
-        $js = &jump_to_role($cdom,$cnum,\%seccount,\%courseroles,\%courseprivs,$priv);
+        $js = &jump_to_role($cdom,$cnum,\%seccount,\%courseroles,\%courseprivs,\%roledesc,$privref);
         $form = 
             '<form name="rolechooser" method="post" action="'.$httphost.'/adm/roles">'."\n".
             '  <input type="hidden" name="destinationurl" value="'.
@@ -2486,8 +2564,17 @@ sub roles_selector {
                     $include = 1;
                 }
                 if ($include) {
+                    my $rolename;
+                    if ($role =~ m{^cr/$cdom/$cdom\-domainconfig/(\w+)(?:/\w+|$)}) {
+                        $rolename = $roledesc{$role};
+                        if ($rolename eq '') {
+                            $rolename = &mt('Helpdesk [_1]',$1);
+                        }
+                    } else {
+                        $rolename = &Apache::lonnet::plaintext($role);
+                    }
                     push(@submenu,['javascript:adhocRole('."'$role'".')',
-                                   &Apache::lonnet::plaintext($role)]);
+                                   $rolename]);
                 }
             }
         }
@@ -2568,8 +2655,101 @@ sub get_all_courseroles {
     return;
 }
 
+sub get_customadhoc_roles {
+    my ($cdom,$cnum,$courseroles,$seccount,$courseprivs,$roledesc,$privref) = @_;
+    unless ((ref($courseroles) eq 'HASH') && (ref($seccount) eq 'HASH') &&
+            (ref($courseprivs) eq 'HASH') && (ref($roledesc) eq 'HASH')) {
+        return;
+    }
+    my $is_helpdesk = 0;
+    my $now = time;
+    foreach my $role ('dh','da') {
+        if ($env{"user.role.$role./$cdom/"}) {
+            my ($start,$end)=split(/\./,$env{"user.role.$role./$cdom/"});
+            if (!($start && ($now<$start)) && !($end && ($now>$end))) {
+                $is_helpdesk = 1;
+                last;
+            }
+        }
+    }
+    if ($is_helpdesk) {
+        my ($possroles,$description) = &Apache::lonnet::get_my_adhocroles($cdom.'_'.$cnum);
+        my %available;
+        if (ref($possroles) eq 'ARRAY') {
+            map { $available{$_} = 1; } @{$possroles};
+        }
+        my %domdefaults = &Apache::lonnet::get_domain_defaults($cdom);
+        if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
+            if (keys(%{$domdefaults{'adhocroles'}})) {
+                my $numsec = 1;
+                my @sections;
+                my ($allseclist,$cached) =
+                    &Apache::lonnet::is_cached_new('courseseclist',$cdom.'_'.$cnum);
+                if (defined($cached)) {
+                    if ($allseclist ne '') {
+                        @sections = split(/,/,$allseclist);
+                        $numsec += scalar(@sections);
+                    }
+                } else {
+                    my %sections_count = &Apache::loncommon::get_sections($cdom,$cnum);
+                    @sections = sort(keys(%sections_count));
+                    $numsec += scalar(@sections);
+                    $allseclist = join(',',@sections);
+                    &Apache::lonnet::do_cache_new('courseseclist',$cdom.'_'.$cnum,$allseclist);
+                }
+                my (%adhoc,$gotprivs);
+                my $prefix = "cr/$cdom/$cdom".'-domainconfig';
+                foreach my $role (keys(%{$domdefaults{'adhocroles'}})) {
+                    next if (($role eq '') || ($role =~ /\W/));
+                    $seccount->{"$prefix/$role"} = $numsec;
+                    $roledesc->{"$prefix/$role"} = $description->{$role};  
+                    if ((ref($privref) eq 'ARRAY') && (@{$privref} > 0)) {
+                        if (exists($env{"user.priv.$prefix/$role./$cdom/$cnum./"})) {
+                            $courseprivs->{"$prefix/$role./$cdom/$cnum./"} =
+                                $env{"user.priv.$prefix/$role./$cdom/$cnum./"};
+                            $courseprivs->{"$prefix/$role./$cdom/$cnum./$cdom/"} =
+                                $env{"user.priv.$prefix/$role./$cdom/$cnum./$cdom/"};
+                            $courseprivs->{"$prefix/$role./$cdom/$cnum./$cdom/$cnum"} =
+                                $env{"user.priv.$prefix/$role./$cdom/$cnum./$cdom/$cnum"};
+                        } else {
+                            unless ($gotprivs) {
+                                my ($adhocroles,$privscached) =
+                                    &Apache::lonnet::is_cached_new('adhocroles',$cdom);
+                                if ((defined($privscached)) && (ref($adhocroles) eq 'HASH')) {
+                                    %adhoc = %{$adhocroles};
+                                } else {
+                                    my $confname = &Apache::lonnet::get_domainconfiguser($cdom);
+                                    my %roledefs = &Apache::lonnet::dump('roles',$cdom,$confname,'rolesdef_');
+                                    foreach my $key (keys(%roledefs)) {
+                                        (undef,my $rolename) = split(/_/,$key);
+                                        if ($rolename ne '') {
+                                            my ($systempriv,$domainpriv,$coursepriv) = split(/\_/,$roledefs{$key});
+                                            $coursepriv = &Apache::lonnet::course_adhocrole_privs($rolename,$cdom,$cnum,$coursepriv);
+                                            $adhoc{$rolename} = join('_',($systempriv,$domainpriv,$coursepriv));
+                                        }
+                                    }
+                                    &Apache::lonnet::do_cache_new('adhocroles',$cdom,\%adhoc);
+                                }
+                                $gotprivs = 1;
+                            }
+                            ($courseprivs->{"$prefix/$role./$cdom/$cnum./"},
+                             $courseprivs->{"$prefix/$role./$cdom/$cnum./$cdom/"},
+                             $courseprivs->{"$prefix/$role./$cdom/$cnum./$cdom/$cnum"}) =
+                                 split(/\_/,$adhoc{$role});
+                        }
+                    }
+                    if ($available{$role}) {
+                        $courseroles->{"$prefix/$role"} = \@sections;
+                    }
+                }
+            }
+        }
+    }
+    return;
+}
+
 sub jump_to_role {
-    my ($cdom,$cnum,$seccount,$courseroles,$courseprivs,$priv) = @_;
+    my ($cdom,$cnum,$seccount,$courseroles,$courseprivs,$roledesc,$privref) = @_;
     my %lt = &Apache::lonlocal::texthash(
                 this => 'This role has section(s) associated with it.',
                 ente => 'Enter a specific section.',
@@ -2602,29 +2782,26 @@ sub jump_to_role {
         }
     }
     my $checkroles = 0;
-    if ($priv && ref($courseprivs) eq 'HASH') {
-        my (%disallowed,%allowed,@disallow);
+    if ((ref($privref) eq 'ARRAY') && (@{$privref} > 0) && (ref($courseprivs) eq 'HASH')) {
+        my %disallowed;
         foreach my $role (sort(keys(%{$courseprivs}))) {
             my $trole;
             if ($role =~ m{^(.+?)\Q./$cdom/$cnum\E}) {
                 $trole = $1;
             }
             if (($trole ne '') && ($trole ne 'cm')) {
-                if ($courseprivs->{$role} =~ /\Q:$priv\E($|:|\&\w+)/) {
-                    $allowed{$trole} = 1;
-                } else {
-                    $disallowed{$trole} = 1;
+                $disallowed{$trole} = 1;
+                foreach my $priv (@{$privref}) { 
+                    if ($courseprivs->{$role} =~ /\Q:$priv\E($|:|\&\w+)/) {
+                        delete($disallowed{$trole});
+                        last;
+                    }
                 }
             }
         }
-        foreach my $trole (keys(%disallowed)) {
-            unless ($allowed{$trole}) {
-                push(@disallow,$trole);
-            }
-        }
-        if (@disallow > 0) {
+        if (keys(%disallowed) > 0) {
             $checkroles = 1;
-            $js .= "    var disallow = new Array('".join("','",@disallow)."');\n".
+            $js .= "    var disallow = new Array('".join("','",keys(%disallowed))."');\n".
                    "    var rolecheck = 1;\n";
         }
     }
@@ -2722,13 +2899,13 @@ END
 
 sub required_privs {
     my $privs =  {
-             '/adm/parmset'      => 'opa',
-             '/adm/courseprefs'  => 'opa',
+             '/adm/parmset'      => 'opa,vpa',
+             '/adm/courseprefs'  => 'opa,vpa',
              '/adm/whatsnew'     => 'whn',
-             '/adm/populate'     => 'cst',
+             '/adm/populate'     => 'cst,vpa,vcl',
              '/adm/trackstudent' => 'vsa',
-             '/adm/statistics'   => 'vgr',
-             '/adm/setblock'     => 'dcm',
+             '/adm/statistics'   => 'mgr,vgr',
+             '/adm/setblock'     => 'dcm,vcb',
              '/adm/coursedocs'   => 'mdc',
            };
     unless ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'spreadsheet') {