--- loncom/auth/lonroles.pm	2006/06/07 20:52:16	1.157
+++ loncom/auth/lonroles.pm	2010/01/15 03:29:48	1.241
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # User Roles Screen
 #
-# $Id: lonroles.pm,v 1.157 2006/06/07 20:52:16 albertel Exp $
+# $Id: lonroles.pm,v 1.241 2010/01/15 03:29:48 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -27,6 +27,103 @@
 #
 ###
 
+=pod
+
+=head1 NAME
+
+Apache::lonroles - User Roles Screen
+
+=head1 SYNOPSIS
+
+Invoked by /etc/httpd/conf/srm.conf:
+
+ <Location /adm/roles>
+ PerlAccessHandler       Apache::lonacc
+ SetHandler perl-script
+ PerlHandler Apache::lonroles
+ ErrorDocument     403 /adm/login
+ ErrorDocument	  500 /adm/errorhandler
+ </Location>
+
+=head1 OVERVIEW
+
+=head2 Choosing Roles
+
+C<lonroles> is a handler that allows a user to switch roles in
+mid-session. LON-CAPA attempts to work with "No Role Specified", the
+default role that a user has before selecting a role, as widely as
+possible, but certain handlers for example need specification which
+course they should act on, etc. Both in this scenario, and when the
+handler determines via C<lonnet>'s C<&allowed> function that a certain
+action is not allowed, C<lonroles> is used as error handler. This
+allows the user to select another role which may have permission to do
+what they were trying to do. C<lonroles> can also be accessed via the
+B<CRS> button in the Remote Control. 
+
+=begin latex
+
+\begin{figure}
+\begin{center}
+\includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
+  \caption{\label{Sample_Roles_Screen}Sample Roles Screen} 
+\end{center}
+\end{figure}
+
+=end latex
+
+=head2 Role Initialization
+
+The privileges for a user are established at login time and stored in the session environment. As a consequence, a new role does not become active till the next login. Handlers are able to query for privileges using C<lonnet>'s C<&allowed> function. When a user first logs in, their role is the "common" role, which means that they have the sum of all of their privileges. During a session it might become necessary to choose a particular role, which as a consequence also limits the user to only the privileges in that particular role.
+
+=head1 INTRODUCTION
+
+This module enables a user to select what role he wishes to
+operate under (instructor, student, teaching assistant, course
+coordinator, etc).  These roles are pre-established by the actions
+of upper-level users.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 HANDLER SUBROUTINE
+
+This routine is called by Apache and mod_perl.
+
+=over 4
+
+=item *
+
+Roles Initialization (yes/no)
+
+=item *
+
+Get Error Message from Environment
+
+=item *
+
+Who is this?
+
+=item *
+
+Generate Page Output
+
+=item *
+
+Choice or no choice
+
+=item *
+
+Table
+
+=item *
+
+Privileges
+
+=back
+
+=cut
+
+
 package Apache::lonroles;
 
 use strict;
@@ -40,8 +137,11 @@ use Apache::lonhtmlcommon;
 use Apache::lonannounce;
 use Apache::lonlocal;
 use Apache::lonpageflip();
+use Apache::lonnavdisplay();
+use Apache::loncoursequeueadmin;
 use GDBM_File;
-use LONCAPA;
+use LONCAPA qw(:DEFAULT :match);
+use HTML::Entities;
  
 
 sub redirect_user {
@@ -53,13 +153,18 @@ sub redirect_user {
     my $swinfo=&Apache::lonmenu::rawconfig();
     my $navwindow;
     if ($launch_nav eq 'on') {
-	$navwindow.=&Apache::lonnavmaps::launch_win('now',undef,undef,
-						  ($url =~ m-^/adm/whatsnew-));
+	$navwindow.=&Apache::lonnavdisplay::launch_win('now',undef,undef,
+						       ($url =~ m-^/adm/whatsnew-));
     } else {
 	$navwindow.=&Apache::lonnavmaps::close();
     }
+
+    # Breadcrumbs
+    my $brcrum = [{'href' => $url,
+                   'text' => 'Switching Role'},];
     my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
-						    {'redirect' => [1,$url],});
+                                                    {'redirect' => [1,$url],
+                                                     'bread_crumbs' => $brcrum,});
     my $end_page   = &Apache::loncommon::end_page();
 
 # Note to style police: 
@@ -68,10 +173,12 @@ sub redirect_user {
     $r->print(<<ENDREDIR);
 $start_page
 <script type="text/javascript">
+// <![CDATA[
 $swinfo
+// ]]>
 </script>
 $navwindow
-<h1>$msg</h1>
+<p>$msg</p>
 $end_page
 ENDREDIR
     return;
@@ -83,13 +190,25 @@ sub error_page {
     &Apache::loncommon::no_cache($r);
     $r->send_http_header;
     return OK if $r->header_only;
-    $r->print(&Apache::loncommon::start_page('Problems during Course Initialization').
-	      '<script type="text/javascript">'.
-	      &Apache::lonmenu::rawconfig().'</script>'.
-	      '<p>'.&mt('The following problems occurred:').
+    # Breadcrumbs
+    my $brcrum = [{'href' => $dest,
+                   'text' => 'Problems during Course Initialization'},];
+    $r->print(&Apache::loncommon::start_page('Problems during Course Initialization',
+                                             undef,
+                                             {'bread_crumbs' => $brcrum,})
+    );
+    $r->print(
+        '<script type="text/javascript">'.
+        '// <![CDATA['.
+        &Apache::lonmenu::rawconfig().
+        '// ]]>'.
+        '</script>'.
+	      '<p class="LC_error">'.&mt('The following problems occurred:').
+          '<br />'.
 	      $error.
-	      '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'.
-	      &Apache::loncommon::end_page());
+	      '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'
+    );
+    $r->print(&Apache::loncommon::end_page());
 }
 
 sub handler {
@@ -98,6 +217,10 @@ sub handler {
 
     my $now=time;
     my $then=$env{'user.login.time'};
+    my $refresh=$env{'user.refresh.time'};
+    if (!$refresh) {
+        $refresh = $then;
+    }
     my $envkey;
     my %dcroles = ();
     my $numdc = &check_fordc(\%dcroles,$then);
@@ -105,29 +228,92 @@ sub handler {
 
 # ================================================================== Roles Init
     if ($env{'form.selectrole'}) {
+
+        my $locknum=&Apache::lonnet::get_locks();
+        if ($locknum) { return 409; }
+
         if ($env{'form.newrole'}) {
             $env{'form.'.$env{'form.newrole'}}=1;
 	}
 	if ($env{'request.course.id'}) {
+            # Check if user is CC trying to select a course role
+            if ($env{'form.switchrole'}) {
+                if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
+                    &adhoc_course_role($refresh,$then);
+                }
+            }
 	    my %temp=('logout_'.$env{'request.course.id'} => time);
 	    &Apache::lonnet::put('email_status',\%temp);
 	    &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
 	}
-	&Apache::lonnet::appenv("request.course.id"   => '',
-				"request.course.fn"   => '',
-				"request.course.uri"  => '',
-				"request.course.sec"  => '',
-				"request.role"        => 'cm',
-                                "request.role.adv"    => $env{'user.adv'},
-				"request.role.domain" => $env{'user.domain'});
-
-# Check if user is a DC trying to enter a course and needs privs to be created
+	&Apache::lonnet::appenv({"request.course.id"   => '',
+			 	 "request.course.fn"   => '',
+				 "request.course.uri"  => '',
+				 "request.course.sec"  => '',
+				 "request.role"        => 'cm',
+                                 "request.role.adv"    => $env{'user.adv'},
+				 "request.role.domain" => $env{'user.domain'}});
+# Check if user is a DC trying to enter a course or author space and needs privs to be created
         if ($numdc > 0) {
             foreach my $envkey (keys %env) {
-                if (my ($domain,$coursenum) =
-                                    ($envkey =~ m-^form\.cc\./(\w+)/(\w+)$-)) {
+# Is this an ad-hoc Coordinator role?
+                if (my ($ccrole,$domain,$coursenum) =
+		    ($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) {
                     if ($dcroles{$domain}) {
-                        &check_privs($domain,$coursenum,$then,$now);
+                        &Apache::lonnet::check_adhoc_privs($domain,$coursenum,
+                                                           $then,$refresh,$now,$ccrole);
+                    }
+                    last;
+                }
+# Is this an ad-hoc CA-role?
+                if (my ($domain,$user) =
+		    ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
+                    if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
+                        delete($env{$envkey});
+                        $env{'form.au./'.$domain.'/'} = 1;
+                        my ($server_status,$home) = &check_author_homeserver($user,$domain);
+                        if ($server_status eq 'switchserver') {
+                            my $trolecode = 'au./'.$domain.'/';
+                            my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
+                            $r->internal_redirect($switchserver);
+                        }
+                        last;
+                    }
+                    if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
+                        if (((($castart) && ($castart < $now)) || !$castart) && 
+                            ((!$caend) || (($caend) && ($caend > $now)))) {
+                            my ($server_status,$home) = &check_author_homeserver($user,$domain);
+                            if ($server_status eq 'switchserver') {
+                                my $trolecode = 'ca./'.$domain.'/'.$user;
+                                my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
+                                $r->internal_redirect($switchserver);
+                            }
+                            last;
+                        }
+                    }
+                    # Check if author blocked ca-access
+                    my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
+                    if ($blocked{'domcoord.author'} eq 'blocked') {
+                        delete($env{$envkey});
+                        $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
+                        last;
+                    }
+                    if ($dcroles{$domain}) {
+                        my ($server_status,$home) = &check_author_homeserver($user,$domain);
+                        if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
+                            &Apache::lonnet::check_adhoc_privs($domain,$user,$then,
+                                                               $refresh,$now,'ca');
+                            if ($server_status eq 'switchserver') {
+                                my $trolecode = 'ca./'.$domain.'/'.$user; 
+                                my $switchserver = '/adm/switchserver?'
+                                                  .'otherserver='.$home.'&role='.$trolecode;
+                                $r->internal_redirect($switchserver);
+                            }
+                        } else {
+                            delete($env{$envkey});
+                        }
+                    } else {
+                        delete($env{$envkey});
                     }
                     last;
                 }
@@ -137,7 +323,8 @@ sub handler {
         foreach $envkey (keys %env) {
             next if ($envkey!~/^user\.role\./);
             my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
-            &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
+            &Apache::lonnet::role_status($envkey,$then,$refresh,$now,\$role,\$where,
+                                         \$trolecode,\$tstatus,\$tstart,\$tend);
             if ($env{'form.'.$trolecode}) {
 		if ($tstatus eq 'is') {
 		    $where=~s/^\///;
@@ -149,8 +336,10 @@ sub handler {
 
 # store role if recent_role list being kept
                     if ($env{'environment.recentroles'}) {
+                        my %frozen_roles =
+                           &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
 			&Apache::lonhtmlcommon::store_recent('roles',
-							     $trolecode,' ');
+							     $trolecode,' ',$frozen_roles{$trolecode});
                     }
 
 
@@ -162,7 +351,7 @@ sub handler {
 			my $authnum=$cnum;
 			if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
 			    ($authnum,$authdom)=
-				split(/\W/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
+				split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
 			}
 # check with key authority
 			unless (&Apache::lonnet::validate_access_key(
@@ -187,8 +376,11 @@ sub handler {
 						     $cdom,$cnum,
                                                      $env{'user.domain'},
 						     $env{'user.name'},
-	      'Assigned from '.$ENV{'REMOTE_ADDR'}.' at '.localtime().' for '.
-                                                     $trolecode);
+                                                     &mt('Assigned from [_1] at [_2] for [_3]'
+                                                        ,$ENV{'REMOTE_ADDR'}
+                                                        ,&Apache::lonlocal::locallocaltime()
+                                                        ,$trolecode)
+                                                     );
 				 unless ($assignresult eq 'ok') {
 				     $assignresult=~s/^error\:\s*//;
 				     $message=&mt($assignresult).
@@ -198,13 +390,15 @@ sub handler {
 				 }
 				 $r->print(<<ENDENTEREDKEY);
 $start_page
-<script>
+<script type="text/javascript">
+// <![CDATA[
 $swinfo
+// ]]>
 </script>
-<form method="post">
+<form action="" method="post">
 <input type="hidden" name="selectrole" value="1" />
 <input type="hidden" name="$trolecode" value="1" />
-<font size="+2">$message</font><br />
+<span class="LC_fontsize_large">$message</span><br />
 <input type="submit" value="$buttontext" />
 </form>
 $end_page
@@ -221,10 +415,12 @@ ENDENTEREDKEY
 				 my $end_page=&Apache::loncommon::end_page();
 				 $r->print(<<ENDENTERKEY);
 $start_page
-<script>
+<script type="text/javascript">
+// <![CDATA[
 $swinfo
+// ]]>
 </script>
-<form method="post">
+<form action="" method="post">
 <input type="hidden" name="selectrole" value="1" />
 <input type="hidden" name="$trolecode" value="1" />
 <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
@@ -242,10 +438,10 @@ ENDENTERKEY
 					 "Role ".$trolecode);
 		    
 		    &Apache::lonnet::appenv(
-					   'request.role'        => $trolecode,
-					   'request.role.domain' => $cdom,
-					   'request.course.sec'  => $csec,
-                                           'request.course.groups' => $cgrps);
+					   {'request.role'        => $trolecode,
+					    'request.role.domain' => $cdom,
+					    'request.course.sec'  => $csec,
+                                            'request.course.groups' => $cgrps});
                     my $tadv=0;
 
 		    if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
@@ -255,8 +451,16 @@ ENDENTERKEY
 			if (($env{'form.orgurl'}) && 
 			    ($env{'form.orgurl'}!~/^\/adm\/flip/)) {
 			    my $dest=$env{'form.orgurl'};
+                            if ($env{'form.symb'}) {
+                                if ($dest =~ /\?/) {
+                                    $dest .= '&';
+                                } else {
+                                    $dest .= '?'
+                                }
+                                $dest .= 'symb='.$env{'form.symb'};
+                            }
 			    if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
-			    &Apache::lonnet::appenv('request.role.adv'=>$tadv);
+			    &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
                             if (($ferr) && ($tadv)) {
 				&error_page($r,$ferr,$dest);
 			    } else {
@@ -264,19 +468,19 @@ ENDENTERKEY
 			    }
 			    return OK;
 			} else {
-                            my $type = 'Course/Group';
 			    if (!$env{'request.course.id'}) {
-				$type = &Apache::loncommon::course_type();
 				&Apache::lonnet::appenv(
-				      "request.course.id"  => $cdom.'_'.$cnum);
+				      {"request.course.id"  => $cdom.'_'.$cnum});
 				$furl='/adm/roles?tryagain=1';
-				$msg=
-				    '<h1><span class="LC_error">'.
-				    &mt('Could not initialize '.lc($type).' at this time.').
-				    '</span></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
+                $msg='<p><span class="LC_error">'
+                    .&mt('Could not initialize [_1] at this time.',
+                         $env{'course.'.$cdom.'_'.$cnum.'.description'})
+                    .'</span></p>'
+                    .'<p>'.&mt('Please try again.').'</p>'
+                    .'<p>'.$ferr.'</p>';
 			    }
 			    if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
-			    &Apache::lonnet::appenv('request.role.adv'=>$tadv);
+			    &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
 
 			    if (($ferr) && ($tadv)) {
 				&error_page($r,$ferr,$furl);
@@ -288,11 +492,23 @@ ENDENTERKEY
 				    $courseid = substr($courseid, 1);
 				}
 				$courseid =~ s/\//_/;
-				if ($role eq 'cc' && $env{'course.' . $courseid . 
-							      '.course.helper.not.run'}) {
+				if ((($role eq 'cc') || ($role eq 'co')) 
+                                    && ($env{'course.' . $courseid .'.course.helper.not.run'})) { 
 				    $furl = "/adm/helper/course.initialization.helper";
 				    # Send the user to the course they selected
 				} elsif ($env{'request.course.id'}) {
+                                    if ($env{'form.destinationurl'}) {
+                                        my $dest = $env{'form.destinationurl'};
+                                        if ($env{'form.destsymb'} ne '') {
+                                            my $esc_symb = &HTML::Entities::encode($env{'form.destsymb'},'"<>&');
+                                            $dest .= '?symb='.$esc_symb;
+                                        }
+                                        &redirect_user($r,&mt('Entering [_1]',
+                                                      $env{'course.'.$courseid.'.description'}),
+                                               $dest,$msg,
+                                               $env{'environment.remotenavmap'});
+                                        return OK;
+                                    }
 				    if (&Apache::lonnet::allowed('whn',
 								 $env{'request.course.id'})
 					|| &Apache::lonnet::allowed('whn',
@@ -301,7 +517,8 @@ ENDENTERKEY
 					) {
 					my $startpage = &courseloadpage($courseid);
 					unless ($startpage eq 'firstres') {         
-					    $msg = &mt('Entering '.lc($type).' ....');
+					    $msg = &mt('Entering [_1] ...',
+						       $env{'course.'.$courseid.'.description'});
 					    &redirect_user($r,&mt('New in course'),
 							   '/adm/whatsnew?refpage=start',$msg,
 							   $env{'environment.remotenavmap'});
@@ -310,12 +527,14 @@ ENDENTERKEY
 				    }
 				}
 # Are we allowed to look at the first resource?
-				if (!&Apache::lonnet::allowed('bre',$furl)) {
+				if ($furl !~ m|^/adm/|) {
 # Guess not ...
 				    $furl=&Apache::lonpageflip::first_accessible_resource();
 				}
-                                $msg = &mt('Entering '.lc($type).' ...');
-				&redirect_user($r,&mt('Entering '.$type),
+                                $msg = &mt('Entering [_1] ...',
+					   $env{'course.'.$courseid.'.description'});
+				&redirect_user($r,&mt('Entering [_1]',
+						      $env{'course.'.$courseid.'.description'}),
 					       $furl,$msg,
 					       $env{'environment.remotenavmap'});
 			    }
@@ -343,6 +562,12 @@ ENDENTERKEY
                                        $redirect_url);
                         return OK;
                     }
+                    if ($role eq 'sc') {
+                        my $redirect_url = '/adm/grades?command=scantronupload';
+                        &redirect_user($r,&mt('Loading Data Upload Page'),
+                                       $redirect_url);
+                        return OK;
+                    }
 		}
             }
         }
@@ -356,15 +581,30 @@ ENDENTERKEY
     $r->send_http_header;
     return OK if $r->header_only;
 
+    my $crumbtext = 'User Roles';
+    my $pagetitle = 'My Roles';
+    my $recent = &mt('Recent Roles');
+    my $show_course=&Apache::loncommon::show_course();
+    if ($show_course) {
+        $crumbtext = 'Courses';
+        $pagetitle = 'My Courses';
+        $recent = &mt('Recent Courses');
+    }
+    my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
     my $swinfo=&Apache::lonmenu::rawconfig();
-    my $start_page=&Apache::loncommon::start_page('User Roles');
+    my $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum});
     my $standby=&mt('Role selected. Please stand by.');
     $standby=~s/\n/\\n/g;
-    my $helptag='<table><tr><td>'.&Apache::loncommon::help_open_menu('','General Intro','General_Intro','User Roles',1,undef,undef,undef,undef,,&mt("Click here for help")).'</td></td></tr></table>';
+    my $noscript='<span class="LC_error">'.&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.').'<br />'.&mt('As this is not the case, most functionality in the system will be unavailable.').'</span><br />';
+
     $r->print(<<ENDHEADER);
 $start_page
-$helptag<br />
-<script>
+<br />
+<noscript>
+$noscript
+</noscript>
+<script type="text/javascript">
+// <![CDATA[
 $swinfo
 window.focus();
 
@@ -381,6 +621,7 @@ function enterrole (thisform,rolecode,bu
        alert('$standby');
     }   
 }
+// ]]>
 </script>
 ENDHEADER
 
@@ -397,15 +638,24 @@ ENDHEADER
     my $advanced=$env{'user.adv'};
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
     my $tryagain=$env{'form.tryagain'};
+    my $reinit=$env{'user.reinit'};
+    delete $env{'user.reinit'};
 
 # -------------------------------------------------------- Generate Page Output
 # --------------------------------------------------------------- Error Header?
     if ($error) {
-	$r->print("<h1>LON-CAPA Access Control</h1>");
-        $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>Access  : ".
-                  Apache::lonnet::plaintext($priv)."\n");
-        $r->print("Resource: ".&Apache::lonenc::check_encrypt($fn)."\n");
-        $r->print("Action  : $msg\n</pre><hr />");
+        $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
+	$r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
+	if ($priv ne '') {
+            $r->print(&mt('Access  : ').&Apache::lonnet::plaintext($priv)."\n");
+	}
+	if ($fn ne '') {
+            $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
+	}
+	if ($msg ne '') {
+            $r->print(&mt('Action  : ').$msg."\n");
+	}
+	$r->print("</pre><hr />");
 	my $url=$fn;
 	my $last;
 	if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
@@ -419,26 +669,25 @@ ENDHEADER
 					&Apache::lonenc::check_encrypt($fn));
     } else {
         if ($env{'user.error.msg'}) {
-	    $r->print(
+            if ($reinit) {
+                $r->print(
  '<h3><span class="LC_error">'.
- &mt('You need to choose another user role or enter a specific course for this function').'</span></h3>');
-	}
+ &mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
+            } else {
+	        $r->print(
+ '<h3><span class="LC_error">'.
+ &mt('You need to choose another user role or enter a specific course or community for this function.').
+ '</span></h3>');
+	    }
+        }
     }
 # -------------------------------------------------------- Choice or no choice?
     if ($nochoose) {
-	$r->print("<h2>".&mt('Sorry ...')."</h2>\n".
-		  &mt('This action is currently not authorized.').
+	$r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
+		  &mt('This action is currently not authorized.').'</span>'.
 		  &Apache::loncommon::end_page());
 	return OK;
     } else {
-        if ($advanced) {
-	    $r->print(&mt("Your home server is ").
-		      $Apache::lonnet::hostname{&Apache::lonnet::homeserver
-                      ($env{'user.name'},$env{'user.domain'})}.
-		      "<br />\n");
-	    $r->print(&mt(
-      "Author and Co-Author roles are not available on servers other than their respective home servers."));
-        }
         if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
     	    $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
         }
@@ -447,77 +696,241 @@ ENDHEADER
         $r->print('<input type="hidden" name="selectrole" value="1" />');
         $r->print('<input type="hidden" name="newrole" value="" />');
     }
+
+    my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
+    my ($countactive,$countfuture,$inrole,$possiblerole) = 
+        &gather_roles($then,$refresh,$now,$reinit,$nochoose,\%roletext,\%sortrole,\%roleclass,
+                      \%futureroles,\%timezones);
+
+    $refresh = $now;
+    &Apache::lonnet::appenv({'user.refresh.time'  => $refresh});
     if ($env{'user.adv'}) {
-	$r->print(
-	      '<br /><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
-	if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
-	$r->print(' /></label><input type="submit" value="'.&mt('Display').'" />');
+        $r->print('<p><label><input type="checkbox" name="showall"');
+        if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
+        $r->print(' />'.&mt('Show all roles').'</label>'
+                 .' <input type="submit" value="'.&mt('Update display').'" />'
+                 .'</p>');
+    } else {
+        if ($countactive > 0) {
+            $r->print(&Apache::loncoursequeueadmin::queued_selfenrollment());
+            my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
+            my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&'); 
+            $r->print(
+                '<p>'
+               .&mt('[_1]Visit the [_2]Course/Community Catalog[_3]'
+                   .' to view all [_4] LON-CAPA courses and communities.'
+                   ,'<b>'
+                   ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
+                   ,'</a></b>',$domdesc)
+               .'<br />'
+               .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
+                   .' you may be able to enroll if self-enrollment is permitted.'
+                   ,'<b>','</b>')
+               .'</p>'
+            );
+        }
+    }
+
+# No active roles
+    if ($countactive==0) {
+	if ($inrole) {
+	    $r->print('<h2>'.&mt('Currently no additional roles, courses or communities').'</h2>');
+	} else {
+	    $r->print('<h2>'.&mt('Currently no active roles, courses or communities').'</h2>');
+	}
+        &findcourse_advice($r);
+        &requestcourse_advice($r); 
+	$r->print('</form>');
+        if ($countfuture) {
+            $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
+            my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
+                                               $nochoose);
+            &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
+                            \%roletext);
+            my $tremark='';
+            my $tbg;
+            if ($env{'request.role'} eq 'cm') {
+                $tbg="LC_roles_selected";
+                $tremark=&mt('Currently selected.').' ';
+            } else {
+                $tbg="LC_roles_is";
+            }
+            $r->print(&Apache::loncommon::start_data_table_row()
+                     .'<td class="'.$tbg.'">&nbsp;</td>'
+                     .'<td colspan="3">'
+                     .&mt('No role specified')
+                     .'</td>'
+                     .'<td>'.$tremark.'&nbsp;</td>'
+                     .&Apache::loncommon::end_data_table_row()
+            );
+
+            $r->print(&Apache::loncommon::end_data_table());
+        }
+        $r->print(&Apache::loncommon::end_page());
+	return OK;
+    }
+# ----------------------------------------------------------------------- Table
+    unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
+	$r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
+    }
+    if ($env{'form.destinationurl'}) {
+        $r->print('<input type="hidden" name="destinationurl" value="'.
+                  $env{'form.destinationurl'}.'" />');
+        if ($env{'form.destsymb'} ne '') {
+            $r->print('<input type="hidden" name="destsymb" value="'.
+                      $env{'form.destsymb'}.'" />');
+        }
+    }
+    my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
+    if ($env{'environment.recentroles'}) {
+        my %recent_roles =
+               &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
+	my $output='';
+	foreach (sort(keys(%recent_roles))) {
+	    if (ref($roletext{'user.role.'.$_}) eq 'ARRAY') {
+		$output.= &Apache::loncommon::start_data_table_row().
+                          $roletext{'user.role.'.$_}->[0].
+                          &Apache::loncommon::end_data_table_row().
+                          &Apache::loncommon::continue_data_table_row().
+                          $roletext{'user.role.'.$_}->[1].
+                          &Apache::loncommon::end_data_table_row();
+                if ($_ =~ m-dc\./($match_domain)/- 
+		    && $dcroles{$1}) {
+		    $output .= &adhoc_roles_row($1,'recent');
+                }
+	    } elsif ($numdc > 0) {
+                unless ($_ =~/^error\:/) {
+                    $output.=&display_cc_role('user.role.'.$_);
+                }
+            } 
+	}
+	if ($output) {
+	    $r->print(&Apache::loncommon::start_data_table_empty_row()
+                     .'<td align="center" colspan="5">'
+                     .$recent
+                     .'</td>'
+                     .&Apache::loncommon::end_data_table_empty_row()
+            );
+	    $r->print($output);
+            $doheaders ++;
+	}
     }
 
-    my (%roletext,%sortrole,%roleclass);
-    my $countactive=0;
-    my $inrole=0;
-    my $possiblerole='';
-    foreach $envkey (sort keys %env) {
+    if ($numdc > 0) {
+        $r->print(&coursepick_jscript());
+        $r->print(&Apache::loncommon::coursebrowser_javascript().
+                  &Apache::loncommon::authorbrowser_javascript());
+    }
+    &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
+    if ($countactive > 1) {
+        my $tremark='';
+        my $tbg;
+        if ($env{'request.role'} eq 'cm') {
+            $tbg="LC_roles_selected";
+            $tremark=&mt('Currently selected.').' ';
+        } else {
+                $tbg="LC_roles_is";
+        }
+        $r->print(&Apache::loncommon::start_data_table_row());
+        unless ($nochoose) {
+	    if ($env{'request.role'} ne 'cm') {
+	        $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
+		          &mt('Select').'" name="cm" /></td>');
+	    } else {
+	        $r->print('<td class="'.$tbg.'">&nbsp;</td>');
+	    }
+        }
+        $r->print('<td colspan="3">'
+                 .&mt('No role specified')
+                 .'</td>'
+                 .'<td>'.$tremark.'&nbsp;</td>'
+                 .&Apache::loncommon::end_data_table_row()
+        );
+    } 
+    $r->print(&Apache::loncommon::end_data_table());
+    unless ($nochoose) {
+	$r->print("</form>\n");
+    }
+# ------------------------------------------------------------ Privileges Info
+    if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
+	$r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
+	$r->print(&privileges_info());
+    }
+    $r->print(&Apache::lonnet::getannounce());
+    if ($advanced) {
+        my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
+        $r->print('<p><small><i>'
+                 .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
+                 .'</i><br />'
+                 .'<a href="/adm/logout">'.&mt('Logout').'</a>&nbsp;&nbsp;'
+                 .'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
+                 .&mt('Course/Community Catalog')
+                 .'</a></small></p>');
+    }
+    $r->print(&Apache::loncommon::end_page());
+    return OK;
+}
+
+sub gather_roles {
+    my ($then,$refresh,$now,$reinit,$nochoose,$roletext,$sortrole,$roleclass,$futureroles,$timezones) = @_;
+    my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
+    my $advanced = $env{'user.adv'};
+    my $tryagain = $env{'form.tryagain'};
+    foreach my $envkey (sort(keys(%env))) {
         my $button = 1;
         my $switchserver='';
-	my $roletext;
-	my $sortkey;
+        my ($role_text,$role_text_end,$sortkey);
         if ($envkey=~/^user\.role\./) {
-            my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
-            &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
+            my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
+            &Apache::lonnet::role_status($envkey,$then,$refresh,$now,\$role,\$where,
+                                         \$trolecode,\$tstatus,\$tstart,\$tend);
             next if (!defined($role) || $role eq '' || $role =~ /^gr/);
+            my $timezone = &role_timezone($where,$timezones);
             $tremark='';
             $tpstart='&nbsp;';
             $tpend='&nbsp;';
-            $tfont='#000000';
             if ($tstart) {
-                $tpstart=&Apache::lonlocal::locallocaltime($tstart);
+                $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
             }
             if ($tend) {
-                $tpend=&Apache::lonlocal::locallocaltime($tend);
+                $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
             }
             if ($env{'request.role'} eq $trolecode) {
-		$tstatus='selected';
+                $tstatus='selected';
             }
             my $tbg;
-            if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
-                ($env{'form.showall'})) {
+            if (($tstatus eq 'is')
+                || ($tstatus eq 'selected')
+                || ($tstatus eq 'future')
+                || ($env{'form.showall'})) {
                 if ($tstatus eq 'is') {
-                    $tbg='#77FF77';
-                    $tfont='#003300';
-		    $possiblerole=$trolecode;
-		    $countactive++;
+                    $tbg='LC_roles_is';
+                    $possiblerole=$trolecode;
+                    $countactive++;
                 } elsif ($tstatus eq 'future') {
-                    $tbg='#FFFF77';
+                    $tbg='LC_roles_future';
                     $button=0;
-                } elsif ($tstatus eq 'will') {
-                    $tbg='#FFAA77';
-                    $tremark.=&mt('Active at next login. ');
+                    $futureroles->{$trolecode} = $tstart.':'.$tend;
+                    $countfuture ++;
                 } elsif ($tstatus eq 'expired') {
-                    $tbg='#FF7777';
-                    $tfont='#330000';
+                    $tbg='LC_roles_expired';
                     $button=0;
                 } elsif ($tstatus eq 'will_not') {
-                    $tbg='#AAFF77';
-                    $tremark.=&mt('Expired after logout. ');
+                    $tbg='LC_roles_will_not';
+                    $tremark.=&mt('Expired after logout.').' ';
                 } elsif ($tstatus eq 'selected') {
-                    $tbg='#11CC55';
-                    $tfont='#002200';
-		    $inrole=1;
-		    $countactive++;
-                    $tremark.=&mt('Currently selected. ');
+                    $tbg='LC_roles_selected';
+                    $inrole=1;
+                    $countactive++;
+                    $tremark.=&mt('Currently selected.').' ';
                 }
                 my $trole;
                 if ($role =~ /^cr\//) {
                     my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
-		    if ($tremark) { $tremark.='<br />'; }
-                    $tremark.=&mt('Defined by ').$rauthor.
-			&mt(' at ').$rdomain.'.';
-                    $trole=$rrole;
-                } else {
-                    $trole=Apache::lonnet::plaintext($role);
+                    if ($tremark) { $tremark.='<br />'; }
+                    $tremark.=&mt('Defined by [_1] at [_2].',$rauthor,$rdomain);
                 }
+                $trole=Apache::lonnet::plaintext($role);
                 my $ttype;
                 my $twhere;
                 my ($tdom,$trest,$tsection)=
@@ -525,298 +938,402 @@ ENDHEADER
                 # First, Co-Authorship roles
                 if (($role eq 'ca') || ($role eq 'aa')) {
                     my $home = &Apache::lonnet::homeserver($trest,$tdom);
-		    my $allowed=0;
-		    my @ids=&Apache::lonnet::current_machine_ids();
-		    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
+                    my $allowed=0;
+                    my @ids=&Apache::lonnet::current_machine_ids();
+                    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
                     if (!$allowed) {
-			$button=0;
+                        $button=0;
                         $switchserver='otherserver='.$home.'&role='.$trolecode;
                     }
                     #next if ($home eq 'no_host');
-                    $home = $Apache::lonnet::hostname{$home};
+                    $home = &Apache::lonnet::hostname($home);
                     $ttype='Construction Space';
                     $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
-			': '.$tdom.'<br />'.
+                        ': '.$tdom.'<br />'.
                         ' '.&mt('Server').':&nbsp;'.$home;
                     $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
-		    $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
-		    $sortkey=$role."$trest:$tdom";
+                    $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
+                    $sortkey=$role."$trest:$tdom";
                 } elsif ($role eq 'au') {
                     # Authors
                     my $home = &Apache::lonnet::homeserver
                         ($env{'user.name'},$env{'user.domain'});
-		    my $allowed=0;
-		    my @ids=&Apache::lonnet::current_machine_ids();
-		    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
+                    my $allowed=0;
+                    my @ids=&Apache::lonnet::current_machine_ids();
+                    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
                     if (!$allowed) {
-			$button=0;
+                        $button=0;
                         $switchserver='otherserver='.$home.'&role='.$trolecode;
                     }
                     #next if ($home eq 'no_host');
-                    $home = $Apache::lonnet::hostname{$home};
+                    $home = &Apache::lonnet::hostname($home);
                     $ttype='Construction Space';
                     $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
-			':&nbsp;'.$home;
+                        ':&nbsp;'.$home;
                     $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
-		    $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
-		    $sortkey=$role;
+                    $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
+                    $sortkey=$role;
                 } elsif ($trest) {
                     my $tcourseid=$tdom.'_'.$trest;
                     $ttype = &Apache::loncommon::course_type($tcourseid);
                     $trole = &Apache::lonnet::plaintext($role,$ttype);
                     if ($env{'course.'.$tcourseid.'.description'}) {
                         $twhere=$env{'course.'.$tcourseid.'.description'};
-			$sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
+                        $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
                         unless ($twhere eq &mt('Currently not available')) {
-			    $twhere.=' <font size="-2">'.
-        &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
-                                    '</font>';
-			}
+                            $twhere.=' <span class="LC_fontsize_small">'.
+        &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
+                                    '</span>';
+                        }
                     } else {
                         my %newhash=&Apache::lonnet::coursedescription($tcourseid);
                         if (%newhash) {
-			    $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
-				"\0".$envkey;
+                            $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
+                                "\0".$envkey;
                             $twhere=$newhash{'description'}.
-                              ' <font size="-2">'.
-        &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
-                              '</font>';
+                              ' <span class="LC_fontsize_small">'.
+        &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
+                              '</span>';
                             $ttype = $newhash{'type'};
                             $trole = &Apache::lonnet::plaintext($role,$ttype);
                         } else {
                             $twhere=&mt('Currently not available');
                             $env{'course.'.$tcourseid.'.description'}=$twhere;
-			    $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
+                            $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
                             $ttype = 'Unavailable';
                         }
                     }
                     if ($tsection) {
-                        $twhere.='<br />'.&mt('Section/Group').': '.$tsection;
-		    }
-		    if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
+                        $twhere.='<br />'.&mt('Section').': '.$tsection;
+                    }
+                    if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
                 } elsif ($tdom) {
                     $ttype='Domain';
                     $twhere=$tdom;
-		    $sortkey=$role.$twhere;
+                    $sortkey=$role.$twhere;
                 } else {
                     $ttype='System';
                     $twhere=&mt('system wide');
-		    $sortkey=$role.$twhere;
+                    $sortkey=$role.$twhere;
                 }
-                $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver);
-		$roletext{$envkey}=$roletext;
-		if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
-		$sortrole{$sortkey}=$envkey;
-		$roleclass{$envkey}=$ttype;
-	    }
+                ($role_text,$role_text_end) =
+                    &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
+                                    $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
+                                    $tpend,$nochoose,$button,$switchserver,$reinit);
+                $roletext->{$envkey}=[$role_text,$role_text_end];
+                if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
+                $sortrole->{$sortkey}=$envkey;
+                $roleclass->{$envkey}=$ttype;
+            }
         }
     }
-# No active roles
-    if ($countactive==0) {
-	if ($inrole) {
-	    $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
-	} else {
-	    $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
-	}
-	$r->print('</form>'.&Apache::loncommon::end_page());
-	return OK;
-# Is there only one choice?
-    } elsif (($countactive==1) && ($env{'request.role'} eq 'cm')) {
-	$r->print('<h3>'.&mt('Please stand by.').'</h3>'.
-	    '<input type="hidden" name="'.$possiblerole.'" value="1" />');
-	$r->print("</form>\n");
-	$r->rflush();
-	$r->print('<script>document.forms.rolechoice.submit();</script>');
-	$r->print(&Apache::loncommon::end_page());
-	return OK;
-    }
-# More than one possible role
-# ----------------------------------------------------------------------- Table
-    unless (($advanced) || ($nochoose)) {
-	$r->print("<h2>".&mt('Select a Course/Group to Enter')."</h2>\n");
-    }
-    $r->print('<br /><table><tr>');
-    unless ($nochoose) { $r->print('<th>&nbsp;</th>'); }
-    $r->print('<th>'.&mt('User Role').'</th><th>'.&mt('Extent').
-         '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th></tr>'."\n");
-    my $doheaders=-1;
-    foreach my $type ('Domain','Construction Space','Course','Group','Unavailable','System') {
-	my $haverole=0;
-	foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
-	    if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) { 
-		$haverole=1;
-	    }
-	}
-	if ($haverole) { $doheaders++; }
-    }
+    return ($countactive,$countfuture,$inrole,$possiblerole);
+}
 
-    if ($env{'environment.recentroles'}) {
-        my %recent_roles =
-               &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
-	my $output='';
-	foreach (sort(keys(%recent_roles))) {
-	    if (defined($roletext{'user.role.'.$_})) {
-		$output.=$roletext{'user.role.'.$_};
-                if ($_ =~ m-dc\./(\w+)/- && $dcroles{$1}) {
-		    $output .= &allcourses_row($1,'recent');
+sub role_timezone {
+    my ($where,$timezones) = @_;
+    my $timezone;
+    if (ref($timezones) eq 'HASH') { 
+        if ($where =~ m{^/($match_domain)/($match_courseid)}) {
+            my $cdom = $1;
+            my $cnum = $2;
+            if ($cdom && $cnum) {
+                if (!exists($timezones->{$cdom.'_'.$cnum})) {
+                    my %timehash =
+                        &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
+                    if ($timehash{'timezone'} eq '') {
+                        if (!exists($timezones->{$cdom})) {
+                            my %domdefaults = 
+                                &Apache::lonnet::get_domain_defaults($cdom);
+                            if ($domdefaults{'timezone_def'} eq '') {
+                                $timezones->{$cdom} = 'local';
+                            } else {
+                                $timezones->{$cdom} = $domdefaults{'timezone_def'};
+                            }
+                        }
+                        $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
+                    } else {
+                        $timezones->{$cdom.'_'.$cnum} = 
+                            &Apache::lonlocal::gettimezone($timehash{'timezone'});
+                    }
                 }
-	    } elsif ($numdc > 0) {
-                unless ($_ =~/^error\:/) {
-                    $output.=&display_cc_role('user.role.'.$_);
+                $timezone = $timezones->{$cdom.'_'.$cnum};
+            }
+        } else {
+            my ($tdom) = ($where =~ m{^/($match_domain)});
+            if ($tdom) {
+                if (!exists($timezones->{$tdom})) {
+                    my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
+                    if ($domdefaults{'timezone_def'} eq '') {
+                        $timezones->{$tdom} = 'local';
+                    } else {
+                        $timezones->{$tdom} = $domdefaults{'timezone_def'};
+                    }
                 }
-            } 
-	}
-	if ($output) {
-	    $r->print("<tr><td align='center' colspan='5'><font face='arial'>".
-		      &mt('Recent Roles')."</font></td>");
-	    $r->print($output);
-	    $r->print("</tr>");
-            $doheaders ++;
-	}
+                $timezone = $timezones->{$tdom};
+            }
+        }
+        if ($timezone eq 'local') {
+            $timezone = undef;
+        }
     }
+    return $timezone;
+}
 
-    if ($numdc > 0) {
-        $r->print(&coursepick_jscript());
-        $r->print(&Apache::loncommon::coursebrowser_javascript());
+sub roletable_headers {
+    my ($r,$roleclass,$sortrole,$nochoose) = @_;
+    my $doheaders;
+    if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
+        $r->print('<br />'
+                 .&Apache::loncommon::start_data_table()
+                 .&Apache::loncommon::start_data_table_header_row()
+        );
+        if (!$nochoose) { $r->print('<th>&nbsp;</th>'); }
+        $r->print('<th>'.&mt('User Role').'</th>'
+                 .'<th>'.&mt('Extent').'</th>'
+                 .'<th>'.&mt('Start').'</th>'
+                 .'<th>'.&mt('End').'</th>'
+                 .&Apache::loncommon::end_data_table_header_row()
+        );
+        $doheaders=-1;
+        my @roletypes = &roletypes();
+        foreach my $type (@roletypes) {
+            my $haverole=0;
+            foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
+                if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
+                    $haverole=1;
+                }
+            }
+            if ($haverole) { $doheaders++; }
+        }
     }
-    foreach my $type ('Construction Space','Domain','Course','Group','Unavailable','System') {
-	my $output;
-	foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
-	    if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) { 
-		$output.=$roletext{$sortrole{$which}};
-                if ($sortrole{$which} =~ m-dc\./(\w+)/-) {
-                    if ($dcroles{$1}) {
-                        $output .= &allcourses_row($1,'');
+    return $doheaders;
+}
+
+sub roletypes {
+    my @types = ('Domain','Construction Space','Course','Community','Unavailable','System');
+    return @types; 
+}
+
+sub print_rolerows {
+    my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
+    if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
+        my @types = &roletypes();
+        foreach my $type (@types) {
+            my $output;
+            foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
+                if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
+                    if (ref($roletext) eq 'HASH') {
+                        if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
+                            $output.= &Apache::loncommon::start_data_table_row().
+                                      $roletext->{$sortrole->{$which}}->[0].
+                                      &Apache::loncommon::end_data_table_row().
+                                      &Apache::loncommon::continue_data_table_row().
+                                      $roletext->{$sortrole->{$which}}->[1].
+                                      &Apache::loncommon::end_data_table_row();
+                        }
+                        if ($sortrole->{$which} =~ m-dc\./($match_domain)/-) {
+                            if (ref($dcroles) eq 'HASH') {
+                                if ($dcroles->{$1}) {
+                                    $output .= &adhoc_roles_row($1,'');
+                                }
+                            }
+                        }
                     }
                 }
-	    }
-	}
-	if ($output) {
-	    if ($doheaders > 0) {
-		$r->print("<tr>".
-			  "<td align='center' colspan='5'><font face='arial'>".&mt($type)."</font></td></tr>");
-	    }
-	    $r->print($output);	
-	}
+            }
+            if ($output) {
+                if ($doheaders > 0) {
+                    $r->print(&Apache::loncommon::start_data_table_empty_row()
+                             .'<td align="center" colspan="5">'
+                             .&mt($type)
+                             .'</td>'
+                             .&Apache::loncommon::end_data_table_empty_row()
+                    );
+                }
+                $r->print($output);
+            }
+        }
     }
-    my $tremark='';
-    my $tfont='#003300';
-    if ($env{'request.role'} eq 'cm') {
-	$r->print('<tr bgcolor="#11CC55">');
-        $tremark=&mt('Currently selected. ');
-        $tfont='#002200';
+}
+
+sub findcourse_advice {
+    my ($r) = @_;
+    my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
+    my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
+    if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
+        $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
+<ul>
+ <li>'.&mt('The course has yet to be created.').'</li>
+ <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
+ <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
+ <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
+ <li>'.&mt('You registered for the course recently and there is a time lag between the time you register, and the time this information becomes available for the update of LON-CAPA course rosters.').'</li>
+ </ul>');
     } else {
-        $r->print('<tr bgcolor="#77FF77">');
+        $r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />');
     }
-    unless ($nochoose) {
-	if ($env{'request.role'} ne 'cm') {
-	    $r->print('<td><input type="submit" value="'.
-		      &mt('Select').'" name="cm"></td>');
-	} else {
-	    $r->print('<td>&nbsp;</td>');
-	}
+    $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
+              '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
+    $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
+              &Apache::loncoursequeueadmin::queued_selfenrollment());
+    return;
+}
+
+sub requestcourse_advice {
+    my ($r) = @_;
+    my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
+    my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
+    my (%can_request,%request_doms);
+    &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
+    if (keys(%request_doms) > 0) {
+        my ($types,$typename) = &Apache::loncommon::course_types();
+        if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) { 
+            $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
+                      '<p>'.&mt('You have rights to request the creation of courses and/or communities in the following domain(s):').'<ul>');
+            my (@reqdoms,@reqtypes);
+            foreach my $type (sort(keys(%request_doms))) {
+                push(@reqtypes,$type); 
+                if (ref($request_doms{$type}) eq 'ARRAY') {
+                    my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
+                    $r->print(
+                        '<li>'
+                       .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
+                            '<i>',
+                            '</i>',
+                            '<b>'.$domstr.'</b>')
+                       .'</li>'
+                    );
+                    foreach my $dom (@{$request_doms{$type}}) {
+                        unless (grep(/^\Q$dom\E/,@reqdoms)) {
+                            push(@reqdoms,$dom);
+                        }
+                    }
+                }
+            }
+            my @showtypes;
+            foreach my $type (@{$types}) {
+                if (grep(/^\Q$type\E$/,@reqtypes)) {
+                    push(@showtypes,$type);
+                }
+            }
+            my $requrl = '/adm/requestcourse';
+            if (@reqdoms == 1) {
+                $requrl .= '?showdom='.$reqdoms[0];
+            }
+            if (@showtypes > 0) {
+                $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
+            }
+            if (@reqdoms == 1 || @showtypes > 0) {
+                $requrl .= '&state=crstype&action=new';
+            } 
+            $r->print('</ul>'.&mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.','<a href="'.$requrl.'">','</a>').'</p>');
+        }
     }
-    $r->print('<td colspan="3"><font color="'.$tfont.'">'.&mt('No role specified').
-      '</font></td><td><font color="'.$tfont.'">'.$tremark.
-      '&nbsp;</font></td></tr>'."\n");
+    return;
+}
 
-    $r->print('</table>');
-    unless ($nochoose) {
-	$r->print("</form>\n");
+sub queued_selfenrollment {
+    my ($r) = @_;
+    my %selfenrollrequests = &Apache::lonnet::dump('selfenrollrequests');
+    my %reqs_by_date;
+    foreach my $item (keys(%selfenrollrequests)) {
+        if (ref($selfenrollrequests{$item}) eq 'HASH') {
+            if ($selfenrollrequests{$item}{'status'} eq 'request') {
+                if ($selfenrollrequests{$item}{'timestamp'}) {
+                    push(@{$reqs_by_date{$selfenrollrequests{$item}{'timestamp'}}},$item);
+                }
+            } 
+        }
     }
-# ------------------------------------------------------------ Privileges Info
-    if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
-	$r->print('<hr /><h2>Current Privileges</h2>');
+    if (keys(%reqs_by_date)) {
+        my $rolename = &Apache::lonnet::plaintext('st');
+        $r->print('<b>'.&mt('Enrollment requests pending Course Coordinator approval').'</b><br />'.
+                  &Apache::loncommon::start_data_table().
+                  &Apache::loncommon::start_data_table_header_row().
+                  '<th>'.&mt('Date requested').'</th><th>'.&mt('Course title').'</th>'.
+                  '<th>'.&mt('User role').'</th><th>'.&mt('Section').'</th>'.
+                 &Apache::loncommon::end_data_table_header_row());
+        my @sorted = sort { $a <=> $b } (keys(%reqs_by_date));
+        foreach my $item (@sorted) {
+            if (ref($reqs_by_date{$item}) eq 'ARRAY') {
+                foreach my $crs (@{$reqs_by_date{$item}}) {
+                    my %courseinfo = &Apache::lonnet::coursedescription($crs);
+                    my $usec = $selfenrollrequests{$crs}{'section'};
+                    if ($usec eq '') {
+                        $usec = &mt('No section'); 
+                    }
+                    $r->print(&Apache::loncommon::start_data_table_row().
+                             '<td>'.&Apache::lonlocal::locallocaltime($item).'</td>'.
+                             '<td>'.$courseinfo{'description'}.'</td>'.
+                             '<td>'.$rolename.'</td><td>'.$usec.'</td>'.
+                             &Apache::loncommon::end_data_table_row());
+                }
+            }
+        }
+        $r->print(&Apache::loncommon::end_data_table());
+    }
+    return;
+}
 
-	foreach $envkey (sort keys %env) {
-	    if ($envkey=~/^user\.priv\.$env{'request.role'}\./) {
-		my $where=$envkey;
-		$where=~s/^user\.priv\.$env{'request.role'}\.//;
-		my $ttype;
-		my $twhere;
-		my ($tdom,$trest,$tsec)=
-		    split(/\//,Apache::lonnet::declutter($where));
-		if ($trest) {
-		    if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
-			$ttype='Construction Space';
-			$twhere='User: '.$trest.', Domain: '.$tdom;
-		    } else {
-			$ttype= 
-			    &Apache::loncommon::course_type($tdom.'_'.$trest);
-			$twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
-			if ($tsec) {
-			    $twhere.=' (Section: '.$tsec.')';
-			}
-		    }
-		} elsif ($tdom) {
-		    $ttype='Domain';
-		    $twhere=$tdom;
-		} else {
-		    $ttype='System';
-		    $twhere='/';
-		}
-		$r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
-		foreach (sort split(/:/,$env{$envkey})) {
-		    if ($_) {
-			my ($prv,$restr)=split(/\&/,$_);
-			my $trestr='';
-			if ($restr ne 'F') {
-			    my $i;
-			    $trestr.=' (';
-			    for ($i=0;$i<length($restr);$i++) {
-				$trestr.=
-			       Apache::lonnet::plaintext(substr($restr,$i,1));
-				if ($i<length($restr)-1) { $trestr.=', '; }
-			    }
-			    $trestr.=')';
-			}
-			$r->print('<li>'.
-				  Apache::lonnet::plaintext($prv).$trestr.
-				  '</li>');
+sub privileges_info {
+    my ($which) = @_;
+    my $output;
+
+    $which ||= $env{'request.role'};
+
+    foreach my $envkey (sort(keys(%env))) {
+	next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
+
+	my $where=$1;
+	my $ttype;
+	my $twhere;
+	my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
+	if ($trest) {
+	    if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
+		$ttype='Construction Space';
+		$twhere='User: '.$trest.', Domain: '.$tdom;
+	    } else {
+		$ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
+		$twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
+		if ($tsec) {
+		    my $sec_type = 'Section';
+		    if (exists($env{"user.role.gr.$where"})) {
+			$sec_type = 'Group';
 		    }
+		    $twhere.=' ('.$sec_type.': '.$tsec.')';
 		}
-		$r->print('</ul>');
 	    }
+	} elsif ($tdom) {
+	    $ttype='Domain';
+	    $twhere=$tdom;
+	} else {
+	    $ttype='System';
+	    $twhere='/';
 	}
+	$output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
+	foreach my $priv (sort(split(/:/,$env{$envkey}))) {
+	    next if (!$priv);
+
+	    my ($prv,$restr)=split(/\&/,$priv);
+	    my $trestr='';
+	    if ($restr ne 'F') {
+		$trestr.=' ('.
+		    join(', ',
+			 map { &Apache::lonnet::plaintext($_) } 
+			     (split('',$restr))).') ';
+	    }
+	    $output .= "\n\t".
+		'<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
+	}
+	$output .= "\n".'</ul>';
     }
-    $r->print(&Apache::lonnet::getannounce());
-    if ($advanced) {
-	$r->print('<p><small><i>This is LON-CAPA '.
-		  $r->dir_config('lonVersion').'</i><br />'.
-		  '<a href="/adm/logout">'.&mt('Logout').'</a></small></p>');
-    }
-    $r->print(&Apache::loncommon::end_page());
-    return OK;
-}
-
-sub role_status {
-    my ($rolekey,$then,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
-    my @pwhere = ();
-    if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
-        (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
-        unless (!defined($$role) || $$role eq '') {
-            $$where=join('.',@pwhere);
-            $$trolecode=$$role.'.'.$$where;
-            ($$tstart,$$tend)=split(/\./,$env{$rolekey});
-            $$tstatus='is';
-            if ($$tstart && $$tstart>$then) {
-		$$tstatus='future';
-		if ($$tstart<$now) { $$tstatus='will'; }
-            }
-            if ($$tend) {
-                if ($$tend<$then) {
-                    $$tstatus='expired';
-                } elsif ($$tend<$now) {
-                    $$tstatus='will_not';
-                }
-            }
-        }
-    }
+    return $output;
 }
 
 sub build_roletext {
-    my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver) = @_;
-    my $roletext='<tr bgcolor="'.$tbg.'">';
+    my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit) = @_;
+    my ($roletext,$roletext_end);
     my $is_dc=($trolecode =~ m/^dc\./);
     my $rowspan=($is_dc) ? ''
                          : ' rowspan="2" ';
@@ -826,55 +1343,92 @@ sub build_roletext {
         $buttonname=~s/\W//g;
         if (!$button) {
             if ($switchserver) {
-                $roletext.='<td'.$rowspan.'><a href="/adm/switchserver?'.
-                $switchserver.'">'.&mt('Switch Server').'</a></td>';
+                $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
+                          .'<a href="/adm/switchserver?'.$switchserver.'">'
+                          .&mt('Switch Server')
+                          .'</a></td>';
             } else {
-                $roletext.=('<td>&nbsp;</td>');
+                $roletext.=('<td'.$rowspan.' class="'.$tbg.'">&nbsp;</td>');
             }
         } elsif ($tstatus eq 'is') {
-            $roletext.='<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
-                        &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
-                        $trolecode."','".$buttonname.'\');"></td>';
+            $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
+                        '<input name="'.$buttonname.'" type="button" value="'.
+                        &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
+                        $trolecode."','".$buttonname.'\');" /></td>';
         } elsif ($tryagain) {
             $roletext.=
-                '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
-                &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
-                        $trolecode."','".$buttonname.'\');"></td>';
+                '<td'.$rowspan.' class="'.$tbg.'">'.
+                '<input name="'.$buttonname.'" type="button" value="'.
+                &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
+                        $trolecode."','".$buttonname.'\');" /></td>';
         } elsif ($advanced) {
             $roletext.=
-                '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
-                &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
-                        $trolecode."','".$buttonname.'\');"></td>';
+                '<td'.$rowspan.' class="'.$tbg.'">'.
+                '<input name="'.$buttonname.'" type="button" value="'.
+                &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
+                        $trolecode."','".$buttonname.'\');" /></td>';
+        } elsif ($reinit) {
+            $roletext.= 
+                '<td'.$rowspan.' class="'.$tbg.'">'.
+                '<input name="'.$buttonname.'" type="button" value="'.
+                &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
+                        $trolecode."','".$buttonname.'\');" /></td>';
         } else {
-            $roletext.='<td'.$rowspan.'>&nbsp;</td>';
+            $roletext.=
+                '<td'.$rowspan.' class="'.$tbg.'">'.
+                '<input name="'.$buttonname.'" type="button" value="'.
+                &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
+                        $trolecode."','".$buttonname.'\');" /></td>';
         }
     }
-    $tremark.=&Apache::lonannounce::showday(time,1,
-                 &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
-
-    $roletext.='<td><font color="'.$tfont.'">'.$trole.
-	       '</font></td><td><font color="'.$tfont.'">'.$twhere.
-               '</font></td><td><font color="'.$tfont.'">'.$tpstart.
-               '</font></td><td><font color="'.$tfont.'">'.$tpend.
-               '</font></td></tr>';
+    if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
+	$tremark.=&Apache::lonannounce::showday(time,1,
+			 &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
+    }
+    $roletext.='<td>'.$trole.'</td>'
+              .'<td>'.$twhere.'</td>'
+              .'<td>'.$tpstart.'</td>'
+              .'<td>'.$tpend.'</td>';
     if (!$is_dc) {
-	$roletext.='<tr bgcolor="'.$tbg.'"><td colspan="4"><font color="'.$tfont.'">'.$tremark.
-	    '&nbsp;</font></td></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
+        $roletext_end = '<td colspan="4">'.
+                        $tremark.'&nbsp;'.
+                        '</td>';
     }
-    return $roletext;
+    return ($roletext,$roletext_end);
 }
 
-sub check_privs {
-    my ($cdom,$cnum,$then,$now) = @_;
-    my $cckey = 'user.role.cc./'.$cdom.'/'.$cnum; 
-    if ($env{$cckey}) {
-        my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
-        &role_status($cckey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
-        unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
-            &set_privileges($cdom,$cnum);
-        }
+sub check_needs_switchserver {
+    my ($possiblerole) = @_;
+    my $needs_switchserver;
+    my ($role,$where) = split(/\./,$possiblerole,2);
+    my (undef,$tdom,$twho) = split(/\//,$where);
+    my ($server_status,$home);
+    if (($role eq 'ca') || ($role eq 'aa')) {
+        ($server_status,$home) = &check_author_homeserver($twho,$tdom);
+    } else {
+        ($server_status,$home) = &check_author_homeserver($env{'user.name'},
+                                                          $env{'user.domain'});
+    }
+    if ($server_status eq 'switchserver') {
+        $needs_switchserver = 1;
+    }
+    return $needs_switchserver;
+}
+
+sub check_author_homeserver {
+    my ($uname,$udom)=@_;
+    if (($uname eq '') || ($udom eq '')) {
+        return ('fail','');
+    }
+    my $home = &Apache::lonnet::homeserver($uname,$udom);
+    if (&Apache::lonnet::host_domain($home) ne $udom) {
+        return ('fail',$home);
+    }
+    my @ids=&Apache::lonnet::current_machine_ids();
+    if (grep(/^\Q$home\E$/,@ids)) {
+        return ('ok',$home);
     } else {
-        &set_privileges($cdom,$cnum);
+        return ('switchserver',$home);
     }
 }
 
@@ -883,7 +1437,7 @@ sub check_fordc {
     my $numdc = 0;
     if ($env{'user.adv'}) {
         foreach my $envkey (sort keys %env) {
-            if ($envkey=~/^user\.role\.dc\.\/(\w+)\/$/) {
+            if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) {
                 my $dcdom = $1;
                 my $livedc = 1;
                 my ($tstart,$tend)=split(/\./,$env{$envkey});
@@ -899,12 +1453,89 @@ sub check_fordc {
     return $numdc;
 }
 
+sub adhoc_course_role {
+    my ($refresh,$then) = @_;
+    my ($cdom,$cnum,$crstype);
+    $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+    $crstype = &Apache::loncommon::course_type();
+    if (&check_forcc($cdom,$cnum,$refresh,$then,$crstype)) {
+        my $setprivs;
+        if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
+            $setprivs = 1;
+        } else {
+            my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
+            if (($start && ($start>$refresh || $start == -1)) ||
+                ($end && $end<$then)) {
+                $setprivs = 1;
+            }
+        }
+        if ($setprivs) {
+            if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)([\w/]*)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
+                my $role = $1;
+                my $custom_role = $2;
+                my $usec = $3;
+                if ($role eq 'cr') {
+                    if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
+                        $role .= $custom_role;
+                    } else {
+                        return;
+                    }
+                }
+                my (%userroles,%newrole,%newgroups,%group_privs);
+                my %cgroups =
+                    &Apache::lonnet::get_active_groups($env{'user.domain'},
+                                            $env{'user.name'},$cdom,$cnum);
+                foreach my $group (keys(%cgroups)) {
+                    $group_privs{$group} =
+                        $env{'user.priv.cc./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
+                }
+                $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
+                my $area = '/'.$cdom.'/'.$cnum;
+                my $spec = $role.'.'.$area;
+                if ($usec ne '') {
+                    $spec .= '/'.$usec;
+                    $area .= '/'.$usec;
+                }
+                &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
+                &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
+                my $adhocstart = $refresh-1;
+                $userroles{'user.role.'.$spec} = $adhocstart.'.';
+                &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
+            }
+        }
+    }
+    return;
+}
+
+sub check_forcc {
+    my ($cdom,$cnum,$refresh,$then,$crstype) = @_;
+    my ($is_cc,$ccrole);
+    if ($crstype eq 'Community') {
+        $ccrole = 'co';
+    } else {
+        $ccrole = 'cc';
+    }
+    if ($cdom ne '' && $cnum ne '') {
+        if (&Apache::lonnet::is_course($cdom,$cnum)) {
+            my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
+            if (defined($env{$envkey})) {
+                $is_cc = 1;
+                my ($tstart,$tend)=split(/\./,$env{$envkey});
+                if ($tstart && $tstart>$refresh) { $is_cc = 0; }
+                if ($tend   && $tend  <$then) { $is_cc = 0; }
+            }
+        }
+    }
+    return $is_cc;
+}
+
 sub courselink {
-    my ($dcdom,$rowtype,$selecttype) = @_;
+    my ($dcdom,$rowtype) = @_;
     my $courseform=&Apache::loncommon::selectcourse_link
                    ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
                     'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
-                    $dcdom,$dcdom,undef,$selecttype);
+                    $dcdom,$dcdom,undef,'Course/Community');
     my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
                       '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
                       '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
@@ -913,8 +1544,13 @@ sub courselink {
 }
 
 sub coursepick_jscript {
+    my %lt = &Apache::lonlocal::texthash(
+                  plsu => "Please use the 'Select Course/Community' link to open a separate pick course window where you may select the course or community you wish to enter.",
+                  youc => 'You can only use this screen to select courses and communities in the current domain.',
+             );
     my $verify_script = <<"END";
-<script>
+<script type="text/javascript">
+// <![CDATA[
 function verifyCoursePick(caller) {
     var numbutton = getIndex(caller)
     var pickedCourse = document.rolechoice.elements[numbutton+4].value
@@ -928,11 +1564,11 @@ function verifyCoursePick(caller) {
             }
         }
         else {
-            alert("Please use the 'Select Course' link to open a separate pick course window where you may select the course you wish to enter.");
+            alert("$lt{'plsu'}");
         }
     }
     else {
-        alert("You can only use this screen to select courses in the current domain")
+        alert("$lt{'youc'}")
     }
 }
 function getIndex(caller) {
@@ -943,81 +1579,65 @@ function getIndex(caller) {
     }
     return -1;
 }
+// ]]>
 </script>
 END
     return $verify_script;
 }
 
-sub processpick {
-    my $process_pick = <<"END";
-<script>
-function process_pick(dom) {
-    var pickedCourse=opener.document.rolechoice.$env{'form.cnumelement'}.value;
-    var pickedDomain=opener.document.rolechoice.$env{'form.cdomelement'}.value;
-    var okDomain = 0;
-
-    if (pickedDomain == dom) {
-        if (pickedCourse != '') {
-            var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
-            opener.document.title='Role selected. Please stand by.';
-            opener.status='Role selected. Please stand by.';
-	    opener.document.rolechoice.newrole.value=courseTarget
-            opener.document.rolechoice.submit()
-        }
-    } else {
-        alert("You may only use this screen to select courses in the current domain: "+dom+"\\nPlease return to the roles page window and click the 'Select Course' link for domain: "+pickedDomain+",\\n if you are a Domain Coordinator in that domain, and wish to become a Course Coordinator in a course in the domain");
-    }
-}
- 
-</script>
-END
-    return $process_pick;
+sub coauthorlink {
+    my ($dcdom,$rowtype) = @_;
+    my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
+    my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
+    return $coauthorform.$hiddenitems;
 }
 
 sub display_cc_role {
     my $rolekey = shift;
-    my $roletext;
+    my ($roletext,$roletext_end);
     my $advanced = $env{'user.adv'};
     my $tryagain = $env{'form.tryagain'};
     unless ($rolekey =~/^error\:/) {
-        if ($rolekey =~ m-^user\.role.cc\./(\w+)/(\w+)$-) {
-            my $tcourseid = $1.'_'.$2;
-            my $trolecode = 'cc./'.$1.'/'.$2;
+        if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
+            my $ccrole = $1;
+            my $tcourseid = $2.'_'.$3;
+            my $trolecode = $1.'./'.$2.'/'.$3;
             my $twhere;
             my $ttype;
-            my $tbg='#77FF77';
-            my $tfont='#003300';
+            my $tbg='LC_roles_is';
             my %newhash=&Apache::lonnet::coursedescription($tcourseid);
             if (%newhash) {
                 $twhere=$newhash{'description'}.
-                        ' <font size="-2">'.
-                        &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1,$tfont).
-                        '</font>';
+                        ' <span style="LC_fontsize_small">'.
+                        &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1).
+                        '</span>';
                 $ttype = $newhash{'type'};
             } else {
                 $twhere=&mt('Currently not available');
                 $env{'course.'.$tcourseid.'.description'}=$twhere;
             }
-            my $trole = &Apache::lonnet::plaintext('cc',$ttype);
+            my $trole = &Apache::lonnet::plaintext($ccrole,$ttype);
             $twhere.="<br />".&mt('Domain').":".$1;
-            $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$tfont,$trole,$twhere,'','','',1,'');
+            ($roletext,$roletext_end) = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'');
         }
     }
-    return ($roletext);
+    return ($roletext,$roletext_end);
 }
 
-sub allcourses_row {
+sub adhoc_roles_row {
     my ($dcdom,$rowtype) = @_;
-    my $output = '<tr bgcolor="#77FF77">'.
-                 ' <td colspan="5">';
-    foreach my $type ('Course','Group') {
-        my $selectlink = &courselink($dcdom,$rowtype,$type);
-        my $ccrole = &Apache::lonnet::plaintext('cc',$type);
-        $output.= '<font color="#002200">'.$ccrole.'</font>'.
-              ' <b>'.$selectlink.'</b>'.
-              ' from '.&mt('Domain').' '.$dcdom.'<br />';
-    }
-    $output .= '</tr><tr><td colspan="5" height="3"></td></tr>'."\n";
+    my $output = &Apache::loncommon::continue_data_table_row()
+                 .' <td colspan="5">'
+                 .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
+                     ,'<span class="LC_cusr_emph">','</span>',$dcdom)
+                 .' ';
+    my $selectcclink = &courselink($dcdom,$rowtype);
+    my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
+    my $carole = &Apache::lonnet::plaintext('ca');
+    my $selectcalink = &coauthorlink($dcdom,$rowtype);
+    $output.=$ccrole.': '.$selectcclink
+            .' | '.$carole.': '.$selectcalink
+            .&Apache::loncommon::end_data_table_row();
     return $output;
 }
 
@@ -1026,29 +1646,6 @@ sub recent_filename {
     return 'nohist_recent_'.&escape($area);
 }
 
-sub set_privileges {
-    my ($dcdom,$pickedcourse) = @_;
-    my $area = '/'.$dcdom.'/'.$pickedcourse;
-    my $role = 'cc';
-    my $spec = $role.'.'.$area;
-    my %userroles = &Apache::lonnet::set_arearole($role,$area,'','',$dcdom,$env{'user.name'});
-    my %ccrole = ();
-    &Apache::lonnet::standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
-    my ($author,$adv)= &Apache::lonnet::set_userprivs(\%userroles,\%ccrole);
-    &Apache::lonnet::appenv(%userroles);
-    &Apache::lonnet::log($env{'user.domain'},
-                         $env{'user.name'},
-                         $env{'user.home'},
-                        "Role ".$role);
-    &Apache::lonnet::appenv(
-                          'request.role'        => $spec,
-                          'request.role.domain' => $dcdom,
-                          'request.course.sec'  => '');
-    my $tadv=0;
-    if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
-    &Apache::lonnet::appenv('request.role.adv'    => $tadv);
-}
-
 sub courseloadpage {
     my ($courseid) = @_;
     my $startpage;