File:  [LON-CAPA] / loncom / interface / domainprefs.pm
Revision 1.138.2.11: download - view: text, annotated - select for diffs
Mon Oct 10 17:57:33 2011 UTC (13 years, 1 month ago) by raeburn
Branches: version_2_10_X
- Remove extra brace in backport of 1.155 (1.138.2.10).

# The LearningOnline Network with CAPA
# Handler to set domain-wide configuration settings
#
# $Id: domainprefs.pm,v 1.138.2.11 2011/10/10 17:57:33 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
#
###############################################################
##############################################################

=pod

=head1 NAME

Apache::domainprefs.pm

=head1 SYNOPSIS

Handles configuration of a LON-CAPA domain.  

This is part of the LearningOnline Network with CAPA project
described at http://www.lon-capa.org.


=head1 OVERVIEW

Each institution using LON-CAPA will typically have a single domain designated 
for use by individuals affliated with the institution.  Accordingly, each domain
may define a default set of logos and a color scheme which can be used to "brand"
the LON-CAPA instance. In addition, an institution will typically have a language
and timezone which are used for the majority of courses.

LON-CAPA provides a mechanism to display and modify these defaults, as well as a 
host of other domain-wide settings which determine the types of functionality
available to users and courses in the domain.

There is also a mechanism to configure cataloging of courses in the domain, and
controls on the operation of automated processes which govern such things as
roster updates, user directory updates and processing of course requests.

The domain coordination manual which is built dynamically on install/update of 
LON-CAPA from the relevant help items provides more information about domain 
configuration.

Most of the domain settings are stored in the configuration.db GDBM file which is
housed on the primary library server for the domain in /home/httpd/lonUsers/$dom,
where $dom is the domain.  The configuration.db stores settings in a number of 
frozen hashes of hashes.  In a few cases, domain information must be uploaded to
the domain as files (e.g., image files for logos etc., or plain text files for
bubblesheet formats).  In this case the domainprefs.pm must be running in a user
session hosted on the primary library server in the domain, as these files are 
stored in author space belonging to a special $dom-domainconfig user.   

domainprefs.pm in combination with lonconfigsettings.pm will retrieve and display
the current settings, and provides an interface to make modifications.

=head1 SUBROUTINES

=over

=item print_quotas()

Inputs: 4 

$dom,$settings,$rowtotal,$action.

$dom is the domain, $settings is a reference to a hash of current settings for
the current context, $rowtotal is a reference to the scalar used to record the 
number of rows displayed on the page, and $action is the context (either quotas 
or requestcourses).

The print_quotas routine was orginally created to display/store information
about default quota sizes for portfolio spaces for the different types of 
institutional affiliation in the domain (e.g., Faculty, Staff, Student etc.), 
but is now also used to manage availability of user tools: 
i.e., blogs, aboutme page, and portfolios, and the course request tool,
used by course owners to request creation of a course.

Outputs: 1

$datatable  - HTML containing form elements which allow settings to be changed. 

In the case of course requests, radio buttons are displayed for each institutional
affiliate type (and also default, and _LC_adv) for each of the course types 
(official, unofficial and community).  In each case the radio buttons allow the 
selection of one of four values:

0, approval, validate, autolimit=N (where N is blank, or a positive integer).
which have the following effects:

0

=over

- course requests are not allowed for this course types/affiliation

=back

approval 

=over 

- course requests must be approved by a Doman Coordinator in the 
course's domain

=back

validate 

=over

- an institutional validation (e.g., check requestor is instructor
of record) needs to be passed before the course will be created.  The required
validation is in localenroll.pm on the primary library server for the course 
domain.

=back

autolimit 

=over
 
- course requests will be processed automatically up to a limit of
N requests for the course type for the particular requestor.
If N is undefined, there is no limit to the number of course requests
which a course owner may submit and have processed automatically. 

=back

=item modify_quotas() 

=back

=cut

package Apache::domainprefs;

use strict;
use Apache::Constants qw(:common :http);
use Apache::lonnet;
use Apache::loncommon();
use Apache::lonhtmlcommon();
use Apache::lonlocal;
use Apache::lonmsg();
use Apache::lonconfigsettings;
use LONCAPA qw(:DEFAULT :match);
use LONCAPA::Enrollment;
use LONCAPA::lonauthcgi();
use File::Copy;
use Locale::Language;
use DateTime::TimeZone;
use DateTime::Locale;

my $registered_cleanup;
my $modified_urls;

sub handler {
    my $r=shift;
    if ($r->header_only) {
        &Apache::loncommon::content_type($r,'text/html');
        $r->send_http_header;
        return OK;
    }

    my $context = 'domain';
    my $dom = $env{'request.role.domain'};
    my $domdesc = &Apache::lonnet::domain($dom,'description');
    if (&Apache::lonnet::allowed('mau',$dom)) {
        &Apache::loncommon::content_type($r,'text/html');
        $r->send_http_header;
    } else {
        $env{'user.error.msg'}=
        "/adm/domainprefs:mau:0:0:Cannot modify domain settings";
        return HTTP_NOT_ACCEPTABLE;
    }

    $registered_cleanup=0;
    @{$modified_urls}=();

    &Apache::lonhtmlcommon::clear_breadcrumbs();
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                            ['phase','actions']);
    my $phase = 'pickactions';
    if ( exists($env{'form.phase'}) ) {
        $phase = $env{'form.phase'};
    }
    my %domconfig =
      &Apache::lonnet::get_dom('configuration',['login','rolecolors',
                'quotas','autoenroll','autoupdate','autocreate',
                'directorysrch','usercreation','usermodification',
                'contacts','defaults','scantron','coursecategories',
                'serverstatuses','requestcourses','coursedefaults',
                'usersessions'],$dom);
    my @prefs_order = ('rolecolors','login','defaults','quotas','autoenroll',
                       'autoupdate','autocreate','directorysrch','contacts',
                       'usercreation','usermodification','scantron',
                       'requestcourses','coursecategories','serverstatuses',
                       'coursedefaults','usersessions');
    my %prefs = (
        'rolecolors' =>
                   { text => 'Default color schemes',
                     help => 'Domain_Configuration_Color_Schemes',
                     header => [{col1 => 'Student Settings',
                                 col2 => '',},
                                {col1 => 'Coordinator Settings',
                                 col2 => '',},
                                {col1 => 'Author Settings',
                                 col2 => '',},
                                {col1 => 'Administrator Settings',
                                 col2 => '',}],
                    },
        'login' =>
                    { text => 'Log-in page options',
                      help => 'Domain_Configuration_Login_Page',
                      header => [{col1 => 'Item',
                                  col2 => '',}],
                    },

        'defaults' => 
                    { text => 'Default authentication/language/timezone/portal',
                      help => 'Domain_Configuration_LangTZAuth',
                      header => [{col1 => 'Setting',
                                  col2 => 'Value'}],
                    },
        'quotas' => 
                    { text => 'User blogs, personal information pages, portfolios',
                      help => 'Domain_Configuration_Quotas',
                      header => [{col1 => 'User affiliation',
                                  col2 => 'Available tools',
                                  col3 => 'Portfolio quota',}],
                    },
        'autoenroll' =>
                   { text => 'Auto-enrollment settings',
                     help => 'Domain_Configuration_Auto_Enrollment',
                     header => [{col1 => 'Configuration setting',
                                 col2 => 'Value(s)'}],
                   },
        'autoupdate' => 
                   { text => 'Auto-update settings',
                     help => 'Domain_Configuration_Auto_Updates',
                     header => [{col1 => 'Setting',
                                 col2 => 'Value',},
                                {col1 => 'Setting',
                                 col2 => 'Affiliation'},
                                {col1 => 'User population',
                                 col2 => 'Updateable user data'}],
                  },
        'autocreate' => 
                  { text => 'Auto-course creation settings',
                     help => 'Domain_Configuration_Auto_Creation',
                     header => [{col1 => 'Configuration Setting',
                                 col2 => 'Value',}],
                  },
        'directorysrch' => 
                  { text => 'Institutional directory searches',
                    help => 'Domain_Configuration_InstDirectory_Search',
                    header => [{col1 => 'Setting',
                                col2 => 'Value',}],
                  },
        'contacts' =>
                  { text => 'Contact Information',
                    help => 'Domain_Configuration_Contact_Info',
                    header => [{col1 => 'Setting',
                                col2 => 'Value',}],
                  },

        'usercreation' => 
                  { text => 'User creation',
                    help => 'Domain_Configuration_User_Creation',
                    header => [{col1 => 'Format rule type',
                                col2 => 'Format rules in force'},
                               {col1 => 'User account creation',
                                col2 => 'Usernames which may be created',},
                               {col1 => 'Context',
                                col2 => 'Assignable authentication types'}],
                  },
        'usermodification' =>
                  { text => 'User modification',
                    help => 'Domain_Configuration_User_Modification',
                    header => [{col1 => 'Target user has role',
                                col2 => 'User information updateable in author context'},
                               {col1 => 'Target user has role',
                                col2 => 'User information updateable in course context'},
                               {col1 => "Status of user",
                                col2 => 'Information settable when self-creating account (if directory data blank)'}],
                  },
        'scantron' =>
                  { text => 'Bubblesheet format file',
                    help => 'Domain_Configuration_Scantron_Format',
                    header => [ {col1 => 'Item',
                                 col2 => '',
                              }],
                  },
        'requestcourses' => 
                 {text => 'Request creation of courses',
                  help => 'Domain_Configuration_Request_Courses',
                  header => [{col1 => 'User affiliation',
                              col2 => 'Availability/Processing of requests',},
                             {col1 => 'Setting',
                              col2 => 'Value'}],
                 },
        'coursecategories' =>
                  { text => 'Cataloging of courses/communities',
                    help => 'Domain_Configuration_Cataloging_Courses',
                    header => [{col1 => 'Category settings',
                                col2 => '',},
                               {col1 => 'Categories',
                                col2 => '',
                               }],
                  },
        'serverstatuses' =>
                 {text   => 'Access to server status pages',
                  help   => 'Domain_Configuration_Server_Status',
                  header => [{col1 => 'Status Page',
                              col2 => 'Other named users',
                              col3 => 'Specific IPs',
                            }],
                 },
        'helpsettings' =>
                 {text   => 'Help page settings',
                  help   => 'Domain_Configuration_Help_Settings',
                  header => [{col1 => 'Authenticated Help Settings',
                              col2 => ''},
                             {col1 => 'Unauthenticated Help Settings',
                              col2 => ''}],
                 },
        'coursedefaults' =>
                 {text => 'Course/Community defaults',
                  help => 'Domain_Configuration_Course_Defaults',
                  header => [{col1 => 'Defaults which can be overridden for each course by a DC',
                              col2 => 'Value',}],
                 },
        'privacy' => 
                 {text   => 'User Privacy',
                  help   => 'Domain_Configuration_User_Privacy',
                  header => [{col1 => 'Setting',
                              col2 => 'Value',}],
                 },
         'usersessions' =>
                 {text  => 'User session hosting',
                  help  => 'Domain_Configuration_User_Sessions',
                  header => [{col1 => 'Hosting of users from other domains',
                              col2 => 'Rules'},
                             {col1 => "Hosting domain's own users elsewhere",
                              col2 => 'Rules'}],
                 },
    );
    my %servers = &dom_servers($dom);
    if (keys(%servers) > 1) {
        $prefs{'login'}  = { text   => 'Log-in page options',
                             help   => 'Domain_Configuration_Login_Page',
                            header => [{col1 => 'Log-in Service',
                                        col2 => 'Server Setting',},
                                       {col1 => 'Log-in Page Items',
                                        col2 => ''}],
                           };
    }
    my @roles = ('student','coordinator','author','admin');
    my @actions = &Apache::loncommon::get_env_multiple('form.actions');
    &Apache::lonhtmlcommon::add_breadcrumb
    ({href=>"javascript:changePage(document.$phase,'pickactions')",
      text=>"Settings to display/modify"});
    my $confname = $dom.'-domainconfig';
    if ($phase eq 'process') {
        &Apache::lonconfigsettings::make_changes($r,$dom,$phase,$context,\@prefs_order,\%prefs,\%domconfig,$confname,\@roles);
    } elsif ($phase eq 'display') {
        &Apache::lonconfigsettings::display_settings($r,$dom,$phase,$context,\@prefs_order,\%prefs,\%domconfig,$confname);
    } else {
        if (keys(%domconfig) == 0) {
            my $primarylibserv = &Apache::lonnet::domain($dom,'primary');
            my @ids=&Apache::lonnet::current_machine_ids();
            if (!grep(/^\Q$primarylibserv\E$/,@ids)) {
                my %designhash = &Apache::loncommon::get_domainconf($dom);
                my @loginimages = ('img','logo','domlogo','login');
                my $custom_img_count = 0;
                foreach my $img (@loginimages) {
                    if ($designhash{$dom.'.login.'.$img} ne '') {
                        $custom_img_count ++;
                    }
                }
                foreach my $role (@roles) {
                    if ($designhash{$dom.'.'.$role.'.img'} ne '') {
                        $custom_img_count ++;
                    }
                }
                if ($custom_img_count > 0) {
                    &Apache::lonconfigsettings::print_header($r,$phase,$context);
                    my $switch_server = &check_switchserver($dom,$confname);
                    $r->print(
    &mt('Domain configuration settings have yet to be saved for this domain via the web-based domain preferences interface.').'<br />'.
    &mt("While this remains so, you must switch to the domain's primary library server in order to update settings.").'<br /><br />'.
    &mt("Thereafter, (with a Domain Coordinator role selected in the domain) you will be able to update settings when logged in to any server in the LON-CAPA network.").'<br />'.
    &mt("However, you will still need to switch to the domain's primary library server to upload new images or logos.").'<br /><br />');
                    if ($switch_server) {
                        $r->print($switch_server.' '.&mt('to primary library server for domain: [_1]',$dom));
                    }
                    $r->print(&Apache::loncommon::end_page());
                    return OK;
                }
            }
        }
        &Apache::lonconfigsettings::display_choices($r,$phase,$context,\@prefs_order,\%prefs);
    }
    return OK;
}

sub process_changes {
    my ($r,$dom,$confname,$action,$roles,$values) = @_;
    my %domconfig;
    if (ref($values) eq 'HASH') {
        %domconfig = %{$values};
    }
    my $output;
    if ($action eq 'login') {
        $output = &modify_login($r,$dom,$confname,%domconfig);
    } elsif ($action eq 'rolecolors') {
        $output = &modify_rolecolors($r,$dom,$confname,$roles,
                                     %domconfig);
    } elsif ($action eq 'quotas') {
        $output = &modify_quotas($dom,$action,%domconfig);
    } elsif ($action eq 'autoenroll') {
        $output = &modify_autoenroll($dom,%domconfig);
    } elsif ($action eq 'autoupdate') {
        $output = &modify_autoupdate($dom,%domconfig);
    } elsif ($action eq 'autocreate') {
        $output = &modify_autocreate($dom,%domconfig);
    } elsif ($action eq 'directorysrch') {
        $output = &modify_directorysrch($dom,%domconfig);
    } elsif ($action eq 'usercreation') {
        $output = &modify_usercreation($dom,%domconfig);
    } elsif ($action eq 'usermodification') {
        $output = &modify_usermodification($dom,%domconfig);
    } elsif ($action eq 'contacts') {
        $output = &modify_contacts($dom,%domconfig);
    } elsif ($action eq 'defaults') {
        $output = &modify_defaults($dom,$r);
    } elsif ($action eq 'scantron') {
        $output = &modify_scantron($r,$dom,$confname,%domconfig);
    } elsif ($action eq 'coursecategories') {
        $output = &modify_coursecategories($dom,%domconfig);
    } elsif ($action eq 'serverstatuses') {
        $output = &modify_serverstatuses($dom,%domconfig);
    } elsif ($action eq 'requestcourses') {
        $output = &modify_quotas($dom,$action,%domconfig);
    } elsif ($action eq 'coursedefaults') {
        $output = &modify_coursedefaults($dom,%domconfig);
    } elsif ($action eq 'usersessions') {
        $output = &modify_usersessions($dom,%domconfig);
    }
    return $output;
}

sub print_config_box {
    my ($r,$dom,$confname,$phase,$action,$item,$settings) = @_;
    my $rowtotal = 0;
    my $output;
    if ($action eq 'coursecategories') {
        $output = &coursecategories_javascript($settings);
    }
    $output .= 
         '<table class="LC_nested_outer">
          <tr>
           <th align="left" valign="middle"><span class="LC_nobreak">'.
           &mt($item->{text}).'&nbsp;'.
           &Apache::loncommon::help_open_topic($item->{'help'}).'</span></th>'."\n".
          '</tr>';
    $rowtotal ++;
    my $numheaders = 1;
    if (ref($item->{'header'}) eq 'ARRAY') {
        $numheaders = scalar(@{$item->{'header'}});
    }
    if ($numheaders > 1) {
        my $colspan = '';
        if (($action eq 'rolecolors') || ($action eq 'coursecategories') || ($action eq 'helpsettings')) {
            $colspan = ' colspan="2"';
        }
        $output .= '
          <tr>
           <td>
            <table class="LC_nested">
             <tr class="LC_info_row">
              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[0]->{'col1'}).'</td>
              <td class="LC_right_item">'.&mt($item->{'header'}->[0]->{'col2'}).'</td>
             </tr>';
        $rowtotal ++;
        if ($action eq 'autoupdate') {
            $output .= &print_autoupdate('top',$dom,$settings,\$rowtotal);
        } elsif ($action eq 'usercreation') {
            $output .= &print_usercreation('top',$dom,$settings,\$rowtotal);
        } elsif ($action eq 'usermodification') {
            $output .= &print_usermodification('top',$dom,$settings,\$rowtotal);
        } elsif ($action eq 'coursecategories') {
            $output .= &print_coursecategories('top',$dom,$item,$settings,\$rowtotal);
        } elsif ($action eq 'login') {
            $output .= &print_login('top',$dom,$confname,$phase,$settings,\$rowtotal);
            $colspan = ' colspan="2"';
        } elsif ($action eq 'requestcourses') {
            $output .= &print_quotas($dom,$settings,\$rowtotal,$action);
        } elsif ($action eq 'helpsettings') {
            $output .= &print_helpsettings('top',$dom,$confname,$settings,\$rowtotal);
        } elsif ($action eq 'usersessions') {
            $output .= &print_usersessions('top',$dom,$settings,\$rowtotal);
        } elsif ($action eq 'rolecolors') {
            $output .= &print_rolecolors($phase,'student',$dom,$confname,$settings,\$rowtotal);
        }
        $output .= '
           </table>
          </td>
         </tr>
         <tr>
           <td>
            <table class="LC_nested">
             <tr class="LC_info_row">
              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[1]->{'col1'}).'</td>';
        $output .= '
              <td class="LC_right_item"'.$colspan.'>'.&mt($item->{'header'}->[1]->{'col2'}).'</td>
             </tr>';
            $rowtotal ++;
        if ($action eq 'autoupdate') {
            $output .= &print_autoupdate('middle',$dom,$settings,\$rowtotal).'
           </table>
          </td>
         </tr>
         <tr>
           <td>
            <table class="LC_nested">
             <tr class="LC_info_row">
              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>      </tr>'.
            &print_autoupdate('bottom',$dom,$settings,\$rowtotal);
            $rowtotal ++;
        } elsif ($action eq 'usercreation') {
            $output .= &print_usercreation('middle',$dom,$settings,\$rowtotal).'
           </table>
          </td>
         </tr>
         <tr>
           <td>
            <table class="LC_nested">
             <tr class="LC_info_row">
              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>             </tr>'.
            &print_usercreation('bottom',$dom,$settings,\$rowtotal);
            $rowtotal ++;
        } elsif ($action eq 'usermodification') {
            $output .= &print_usermodification('middle',$dom,$settings,\$rowtotal).'
           </table>
          </td>
         </tr>
         <tr>
           <td>
            <table class="LC_nested">
             <tr class="LC_info_row">
              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>      </tr>'.
                       &print_usermodification('bottom',$dom,$settings,\$rowtotal);
            $rowtotal ++;
        } elsif ($action eq 'coursecategories') {
            $output .= &print_coursecategories('bottom',$dom,$item,$settings,\$rowtotal);
        } elsif ($action eq 'login') {
            $output .= &print_login('bottom',$dom,$confname,$phase,$settings,\$rowtotal);
        } elsif ($action eq 'requestcourses') {
            $output .= &print_courserequestmail($dom,$settings,\$rowtotal);
        } elsif ($action eq 'helpsettings') {
            $output .= &print_helpsettings('bottom',$dom,$confname,$settings,\$rowtotal);
        } elsif ($action eq 'usersessions') {
            $output .= &print_usersessions('bottom',$dom,$settings,\$rowtotal);
        } elsif ($action eq 'rolecolors') {
            $output .= &print_rolecolors($phase,'coordinator',$dom,$confname,$settings,\$rowtotal).'
           </table>
          </td>
         </tr>
         <tr>
           <td>
            <table class="LC_nested">
             <tr class="LC_info_row">
              <td class="LC_left_item"'.$colspan.' valign="top">'.
               &mt($item->{'header'}->[2]->{'col1'}).'</td>
              <td class="LC_right_item" valign="top">'.
               &mt($item->{'header'}->[2]->{'col2'}).'</td>
             </tr>'.
            &print_rolecolors($phase,'author',$dom,$confname,$settings,\$rowtotal).'
           </table>
          </td>
         </tr>
         <tr>
           <td>
            <table class="LC_nested">
             <tr class="LC_info_row">
              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[3]->{'col1'}).'</td>
              <td class="LC_right_item">'.&mt($item->{'header'}->[3]->{'col2'}).'</td>
             </tr>'.
            &print_rolecolors($phase,'admin',$dom,$confname,$settings,\$rowtotal);
            $rowtotal += 2;
        }
    } else {
        $output .= '
          <tr>
           <td>
            <table class="LC_nested">
             <tr class="LC_info_row">';
        if (($action eq 'login') || ($action eq 'directorysrch')) {
            $output .= '  
              <td class="LC_left_item" colspan="2">'.&mt($item->{'header'}->[0]->{'col1'}).'</td>';
        } elsif ($action eq 'serverstatuses') {
            $output .= '
              <td class="LC_left_item" valign="top">'.&mt($item->{'header'}->[0]->{'col1'}).
              '<br />('.&mt('Automatic access for Dom. Coords.').')</td>';

        } else {
            $output .= '
              <td class="LC_left_item" valign="top">'.&mt($item->{'header'}->[0]->{'col1'}).'</td>';
        }
        if (defined($item->{'header'}->[0]->{'col3'})) {
            $output .= '<td class="LC_left_item" valign="top">'.
                       &mt($item->{'header'}->[0]->{'col2'});
            if ($action eq 'serverstatuses') {
                $output .= '<br />(<tt>'.&mt('user1:domain1,user2:domain2 etc.').'</tt>)';
            } 
        } else {
            $output .= '<td class="LC_right_item" valign="top">'.
                       &mt($item->{'header'}->[0]->{'col2'});
        }
        $output .= '</td>';
        if ($item->{'header'}->[0]->{'col3'}) {
            $output .= '<td class="LC_right_item" valign="top">'.
                       &mt($item->{'header'}->[0]->{'col3'});
            if ($action eq 'serverstatuses') {
                $output .= '<br />(<tt>'.&mt('IP1,IP2 etc.').'</tt>)';
            }
            $output .= '</td>';
        }
        $output .= '</tr>';
        $rowtotal ++;
        if ($action eq 'login') {
            $output .= &print_login('bottom',$dom,$confname,$phase,$settings,
                                    \$rowtotal);
        } elsif ($action eq 'quotas') {
            $output .= &print_quotas($dom,$settings,\$rowtotal,$action);
        } elsif ($action eq 'autoenroll') {
            $output .= &print_autoenroll($dom,$settings,\$rowtotal);
        } elsif ($action eq 'autocreate') {
            $output .= &print_autocreate($dom,$settings,\$rowtotal);
        } elsif ($action eq 'directorysrch') {
            $output .= &print_directorysrch($dom,$settings,\$rowtotal);
        } elsif ($action eq 'contacts') {
            $output .= &print_contacts($dom,$settings,\$rowtotal);
        } elsif ($action eq 'defaults') {
            $output .= &print_defaults($dom,\$rowtotal);
        } elsif ($action eq 'scantron') {
            $output .= &print_scantronformat($r,$dom,$confname,$settings,\$rowtotal);
        } elsif ($action eq 'serverstatuses') {
            $output .= &print_serverstatuses($dom,$settings,\$rowtotal);
        } elsif ($action eq 'coursedefaults') {
            $output .= &print_coursedefaults('bottom',$dom,$settings,\$rowtotal);
        }
    }
    $output .= '
   </table>
  </td>
 </tr>
</table><br />';
    return ($output,$rowtotal);
}

sub print_login {
    my ($position,$dom,$confname,$phase,$settings,$rowtotal) = @_;
    my ($css_class,$datatable);
    my %choices = &login_choices();

    if ($position eq 'top') {
        my %servers = &dom_servers($dom);
        my $choice = $choices{'disallowlogin'};
        $css_class = ' class="LC_odd_row"';
        $datatable .= '<tr'.$css_class.'><td>'.$choice.'</td>'.
                      '<td align="right"><table><tr><th>'.$choices{'hostid'}.'</th>'.
                      '<th>'.$choices{'server'}.'</th>'.
                      '<th>'.$choices{'serverpath'}.'</th>'.
                      '<th>'.$choices{'custompath'}.'</th>'.
                      '<th><span class="LC_nobreak">'.$choices{'exempt'}.'</span></th></tr>'."\n";
        my %disallowed;
        if (ref($settings) eq 'HASH') {
            if (ref($settings->{'loginvia'}) eq 'HASH') {
               %disallowed = %{$settings->{'loginvia'}};
            }
        }
        foreach my $lonhost (sort(keys(%servers))) {
            my $direct = 'selected="selected"';
            if (ref($disallowed{$lonhost}) eq 'HASH') {
                if ($disallowed{$lonhost}{'server'} ne '') {
                    $direct = '';
                }
            }
            $datatable .= '<tr><td>'.$servers{$lonhost}.'</td>'.
                          '<td><select name="'.$lonhost.'_server">'.
                          '<option value=""'.$direct.'>'.$choices{'directlogin'}.
                          '</option>';
            foreach my $hostid (keys(%servers)) {
                next if ($servers{$hostid} eq $servers{$lonhost});
                my $selected = '';
                if (ref($disallowed{$lonhost}) eq 'HASH') {
                    if ($hostid eq $disallowed{$lonhost}{'server'}) {
                        $selected = 'selected="selected"';
                    }
                }
                $datatable .= '<option value="'.$hostid.'"'.$selected.'>'.
                              $servers{$hostid}.'</option>';
            }
            $datatable .= '</select></td>'.
                          '<td><select name="'.$lonhost.'_serverpath">';
            foreach my $path ('','/','/adm/login','/adm/roles','custom') {
                my $pathname = $path;
                if ($path eq 'custom') {
                    $pathname = &mt('Custom Path').' ->';
                }
                my $selected = '';
                if (ref($disallowed{$lonhost}) eq 'HASH') {
                    if ($path eq $disallowed{$lonhost}{'serverpath'}) {
                        $selected = 'selected="selected"';
                    }
                } elsif ($path eq '') {
                    $selected = 'selected="selected"';
                }
                $datatable .= '<option value="'.$path.'"'.$selected.'>'.$pathname.'</option>';
            }
            $datatable .= '</select></td>';
            my ($custom,$exempt);
            if (ref($disallowed{$lonhost}) eq 'HASH') {
                $custom = $disallowed{$lonhost}{'custompath'};
                $exempt = $disallowed{$lonhost}{'exempt'};
            }
            $datatable .= '<td><input type="text" name="'.$lonhost.'_custompath" size="6" value="'.$custom.'" /></td>'.
                          '<td><input type="text" name="'.$lonhost.'_exempt" size="8" value="'.$exempt.'" /></td>'.
                          '</tr>';
        }
        $datatable .= '</table></td></tr>';
        return $datatable;
    }

    my %defaultchecked = ( 
                           'coursecatalog' => 'on',
                           'adminmail'     => 'off',
                           'newuser'       => 'off',
                         );
    my @toggles = ('coursecatalog','adminmail','newuser');
    my (%checkedon,%checkedoff);
    foreach my $item (@toggles) {
        if ($defaultchecked{$item} eq 'on') { 
            $checkedon{$item} = ' checked="checked" ';
            $checkedoff{$item} = ' ';
        } elsif ($defaultchecked{$item} eq 'off') {
            $checkedoff{$item} = ' checked="checked" ';
            $checkedon{$item} = ' ';
        }
    }
    my @images = ('img','logo','domlogo','login');
    my @logintext = ('textcol','bgcol');
    my @bgs = ('pgbg','mainbg','sidebg');
    my @links = ('link','alink','vlink');
    my %designhash = &Apache::loncommon::get_domainconf($dom);
    my %defaultdesign = %Apache::loncommon::defaultdesign;
    my (%is_custom,%designs);
    my %defaults = (
                   font => $defaultdesign{'login.font'},
                   );
    foreach my $item (@images) {
        $defaults{$item} = $defaultdesign{'login.'.$item};
        $defaults{'showlogo'}{$item} = 1;
    }
    foreach my $item (@bgs) {
        $defaults{'bgs'}{$item} = $defaultdesign{'login.'.$item};
    }
    foreach my $item (@logintext) {
        $defaults{'logintext'}{$item} = $defaultdesign{'login.'.$item};
    }
    foreach my $item (@links) {
        $defaults{'links'}{$item} = $defaultdesign{'login.'.$item};
    }
    if (ref($settings) eq 'HASH') {
        foreach my $item (@toggles) {
            if ($settings->{$item} eq '1') {
                $checkedon{$item} =  ' checked="checked" ';
                $checkedoff{$item} = ' ';
            } elsif ($settings->{$item} eq '0') {
                $checkedoff{$item} =  ' checked="checked" ';
                $checkedon{$item} = ' ';
            }
        }
        foreach my $item (@images) {
            if (defined($settings->{$item})) {
                $designs{$item} = $settings->{$item};
                $is_custom{$item} = 1;
            }
            if (defined($settings->{'showlogo'}{$item})) {
                $designs{'showlogo'}{$item} = $settings->{'showlogo'}{$item};
            }
        }
        foreach my $item (@logintext) {
            if ($settings->{$item} ne '') {
                $designs{'logintext'}{$item} = $settings->{$item};
                $is_custom{$item} = 1;
            }
        }
        if ($settings->{'font'} ne '') {
            $designs{'font'} = $settings->{'font'};
            $is_custom{'font'} = 1;
        }
        foreach my $item (@bgs) {
            if ($settings->{$item} ne '') {
                $designs{'bgs'}{$item} = $settings->{$item};
                $is_custom{$item} = 1;
            }
        }
        foreach my $item (@links) {
            if ($settings->{$item} ne '') {
                $designs{'links'}{$item} = $settings->{$item};
                $is_custom{$item} = 1;
            }
        }
    } else {
        if ($designhash{$dom.'.login.font'} ne '') {
            $designs{'font'} = $designhash{$dom.'.login.font'};
            $is_custom{'font'} = 1;
        }
        foreach my $item (@images) {
            if ($designhash{$dom.'.login.'.$item} ne '') {
                $designs{$item} = $designhash{$dom.'.login.'.$item};
                $is_custom{$item} = 1;
            }
        }
        foreach my $item (@bgs) {
            if ($designhash{$dom.'.login.'.$item} ne '') {
                $designs{'bgs'}{$item} = $designhash{$dom.'.login.'.$item};
                $is_custom{$item} = 1;
            }
        }
        foreach my $item (@links) {
            if ($designhash{$dom.'.login.'.$item} ne '') {
                $designs{'links'}{$item} = $designhash{$dom.'.login.'.$item};
                $is_custom{$item} = 1;
            }
        }
    }
    my %alt_text = &Apache::lonlocal::texthash  ( img => 'Log-in banner',
                                                  logo => 'Institution Logo',
                                                  domlogo => 'Domain Logo',
                                                  login => 'Login box');
    my $itemcount = 1;
    foreach my $item (@toggles) {
        $css_class = $itemcount%2?' class="LC_odd_row"':'';
        $datatable .=  
            '<tr'.$css_class.'><td colspan="2">'.$choices{$item}.
            '</td><td>'.
            '<span class="LC_nobreak"><label><input type="radio" name="'.
            $item.'"'.$checkedon{$item}.' value="1" />'.&mt('Yes').
            '</label>&nbsp;<label><input type="radio" name="'.$item.'"'.
            $checkedoff{$item}.' value="0" />'.&mt('No').'</label></span></td>'.
            '</tr>';
        $itemcount ++;
    }
    $datatable .= &display_color_options($dom,$confname,$phase,'login',$itemcount,\%choices,\%is_custom,\%defaults,\%designs,\@images,\@bgs,\@links,\%alt_text,$rowtotal,\@logintext);
    $datatable .= '</tr></table></td></tr>';
    return $datatable;
}

sub login_choices {
    my %choices =
        &Apache::lonlocal::texthash (
            coursecatalog => 'Display Course/Community Catalog link?',
            adminmail     => "Display Administrator's E-mail Address?",
            disallowlogin => "Login page requests redirected",
            hostid        => "Server",
            server        => "Redirect to:",
            serverpath    => "Path",
            custompath    => "Custom", 
            exempt        => "Exempt IP(s)",
            directlogin   => "No redirect",
            newuser       => "Link to create a user account",
            img           => "Header",
            logo          => "Main Logo",
            domlogo       => "Domain Logo",
            login         => "Log-in Header", 
            textcol       => "Text color",
            bgcol         => "Box color",
            bgs           => "Background colors",
            links         => "Link colors",
            font          => "Font color",
            pgbg          => "Header",
            mainbg        => "Page",
            sidebg        => "Login box",
            link          => "Link",
            alink         => "Active link",
            vlink         => "Visited link",
        );
    return %choices;
}

sub print_rolecolors {
    my ($phase,$role,$dom,$confname,$settings,$rowtotal) = @_;
    my %choices = &color_font_choices();
    my @bgs = ('pgbg','tabbg','sidebg');
    my @links = ('link','alink','vlink');
    my @images = ('img');
    my %alt_text = &Apache::lonlocal::texthash(img => "Banner for $role role");
    my %designhash = &Apache::loncommon::get_domainconf($dom);
    my %defaultdesign = %Apache::loncommon::defaultdesign;
    my (%is_custom,%designs);
    my %defaults = (
                   img => $defaultdesign{$role.'.img'},
                   font => $defaultdesign{$role.'.font'},
		   fontmenu => $defaultdesign{$role.'.fontmenu'},
                   );
    foreach my $item (@bgs) {
        $defaults{'bgs'}{$item} = $defaultdesign{$role.'.'.$item};
    }
    foreach my $item (@links) {
        $defaults{'links'}{$item} = $defaultdesign{$role.'.'.$item};
    }
    if (ref($settings) eq 'HASH') {
        if (ref($settings->{$role}) eq 'HASH') {
            if ($settings->{$role}->{'img'} ne '') {
                $designs{'img'} = $settings->{$role}->{'img'};
                $is_custom{'img'} = 1;
            }
            if ($settings->{$role}->{'font'} ne '') {
                $designs{'font'} = $settings->{$role}->{'font'};
                $is_custom{'font'} = 1;
            }
            if ($settings->{$role}->{'fontmenu'} ne '') {
                $designs{'fontmenu'} = $settings->{$role}->{'fontmenu'};
                $is_custom{'fontmenu'} = 1;
            }
            foreach my $item (@bgs) {
                if ($settings->{$role}->{$item} ne '') {
                    $designs{'bgs'}{$item} = $settings->{$role}->{$item};
                    $is_custom{$item} = 1;
                }
            }
            foreach my $item (@links) {
                if ($settings->{$role}->{$item} ne '') {
                    $designs{'links'}{$item} = $settings->{$role}->{$item};
                    $is_custom{$item} = 1;
                }
            }
        }
    } else {
        if ($designhash{$dom.'.'.$role.'.img'} ne '') {
            $designs{img} = $designhash{$dom.'.'.$role.'.img'};
            $is_custom{'img'} = 1;
        }
        if ($designhash{$dom.'.'.$role.'.fontmenu'} ne '') {
            $designs{fontmenu} = $designhash{$dom.'.'.$role.'.fontmenu'};
            $is_custom{'fontmenu'} = 1; 
        }
        if ($designhash{$dom.'.'.$role.'.font'} ne '') {
            $designs{font} = $designhash{$dom.'.'.$role.'.font'};
            $is_custom{'font'} = 1;
        }
        foreach my $item (@bgs) {
            if ($designhash{$dom.'.'.$role.'.'.$item} ne '') {
                $designs{'bgs'}{$item} = $designhash{$dom.'.'.$role.'.'.$item};
                $is_custom{$item} = 1;
            
            }
        }
        foreach my $item (@links) {
            if ($designhash{$dom.'.'.$role.'.'.$item} ne '') {
                $designs{'links'}{$item} = $designhash{$dom.'.'.$role.'.'.$item};
                $is_custom{$item} = 1;
            }
        }
    }
    my $itemcount = 1;
    my $datatable = &display_color_options($dom,$confname,$phase,$role,$itemcount,\%choices,\%is_custom,\%defaults,\%designs,\@images,\@bgs,\@links,\%alt_text,$rowtotal);
    $datatable .= '</tr></table></td></tr>';
    return $datatable;
}

sub display_color_options {
    my ($dom,$confname,$phase,$role,$itemcount,$choices,$is_custom,$defaults,$designs,
        $images,$bgs,$links,$alt_text,$rowtotal,$logintext) = @_;
    my $css_class = $itemcount%2?' class="LC_odd_row"':'';
    my $datatable = '<tr'.$css_class.'>'.
        '<td>'.$choices->{'font'}.'</td>';
    if (!$is_custom->{'font'}) {
        $datatable .=  '<td>'.&mt('Default in use:').'&nbsp;<span id="css_default_'.$role.'_font" style="color: '.$defaults->{'font'}.';">'.$defaults->{'font'}.'</span></td>';
    } else {
        $datatable .= '<td>&nbsp;</td>';
    }
    my $fontlink = &color_pick($phase,$role,'font',$choices->{'font'},$designs->{'font'});
    $datatable .= '<td><span class="LC_nobreak">'.
                  '<input type="text" size="10" name="'.$role.'_font"'.
                  ' value="'.$designs->{'font'}.'" />&nbsp;'.$fontlink.
                  '&nbsp;<span id="css_'.$role.'_font" style="background-color: '.
                  $designs->{'font'}.';">&nbsp;&nbsp;&nbsp;</span>'.
                  '</span></td></tr>';
    unless ($role eq 'login') { 
        $datatable .= '<tr'.$css_class.'>'.
                      '<td>'.$choices->{'fontmenu'}.'</td>';
        if (!$is_custom->{'fontmenu'}) {
            $datatable .=  '<td>'.&mt('Default in use:').'&nbsp;<span id="css_default_'.$role.'_font" style="color: '.$defaults->{'fontmenu'}.';">'.$defaults->{'fontmenu'}.'</span></td>';
        } else {
            $datatable .= '<td>&nbsp;</td>';
        }
        $fontlink = &color_pick($phase,$role,'fontmenu',$choices->{'fontmenu'},$designs->{'fontmenu'});
        $datatable .= '<td><span class="LC_nobreak">'.
                      '<input type="text" size="10" name="'.$role.'_fontmenu"'.
                      ' value="'.$designs->{'fontmenu'}.'" />&nbsp;'.$fontlink.
                      '&nbsp;<span id="css_'.$role.'_fontmenu" style="background-color: '.
                      $designs->{'fontmenu'}.';">&nbsp;&nbsp;&nbsp;</span>'.
                      '</span></td></tr>';
    }
    my $switchserver = &check_switchserver($dom,$confname);
    foreach my $img (@{$images}) {
	$itemcount ++;
        $css_class = $itemcount%2?' class="LC_odd_row"':'';
        $datatable .= '<tr'.$css_class.'>'.
                      '<td>'.$choices->{$img};
        my ($imgfile,$img_import,$login_hdr_pick,$logincolors);
        if ($role eq 'login') {
            if ($img eq 'login') {
                $login_hdr_pick =
                    &login_header_options($img,$role,$defaults,$is_custom,$choices);
                $logincolors =
                    &login_text_colors($img,$role,$logintext,$phase,$choices,
                                            $designs);
            } elsif ($img ne 'domlogo') {
                $datatable.= &logo_display_options($img,$defaults,$designs);
            }
        }
        $datatable .= '</td>';
        if ($designs->{$img} ne '') {
            $imgfile = $designs->{$img};
	    $img_import = ($imgfile =~ m{^/adm/});
        } else {
            $imgfile = $defaults->{$img};
        }
        if ($imgfile) {
            my ($showfile,$fullsize);
            if ($imgfile =~ m-^(/res/\Q$dom\E/\Q$confname\E/\Q$img\E)/([^/]+)$-) {
                my $urldir = $1;
                my $filename = $2;
                my @info = &Apache::lonnet::stat_file($designs->{$img});
                if (@info) {
                    my $thumbfile = 'tn-'.$filename;
                    my @thumb=&Apache::lonnet::stat_file($urldir.'/'.$thumbfile);
                    if (@thumb) {
                        $showfile = $urldir.'/'.$thumbfile;
                    } else {
                        $showfile = $imgfile;
                    }
                } else {
                    $showfile = '';
                }
            } elsif ($imgfile =~ m-^/(adm/[^/]+)/([^/]+)$-) {
                $showfile = $imgfile;
                my $imgdir = $1;
                my $filename = $2;
                if (-e "/home/httpd/html/$imgdir/tn-".$filename) {
                    $showfile = "/$imgdir/tn-".$filename;
                } else {
                    my $input = "/home/httpd/html".$imgfile;
                    my $output = '/home/httpd/html/'.$imgdir.'/tn-'.$filename;
                    if (!-e $output) {
                        my ($width,$height) = &thumb_dimensions();
                        my ($fullwidth,$fullheight) = &check_dimensions($input);
                        if ($fullwidth ne '' && $fullheight ne '') {
                            if ($fullwidth > $width && $fullheight > $height) { 
                                my $size = $width.'x'.$height;
                                system("convert -sample $size $input $output");
                                $showfile = '/'.$imgdir.'/tn-'.$filename;
                            }
                        }
                    }
                }
            }
            if ($showfile) {
                if ($showfile =~ m{^/(adm|res)/}) {
                    if ($showfile =~ m{^/res/}) {
                        my $local_showfile =
                            &Apache::lonnet::filelocation('',$showfile);
                        &Apache::lonnet::repcopy($local_showfile);
                    }
                    $showfile = &Apache::loncommon::lonhttpdurl($showfile);
                }
                if ($imgfile) {
                    if ($imgfile  =~ m{^/(adm|res)/}) {
                        if ($imgfile =~ m{^/res/}) {
                            my $local_imgfile =
                                &Apache::lonnet::filelocation('',$imgfile);
                            &Apache::lonnet::repcopy($local_imgfile);
                        }
                        $fullsize = &Apache::loncommon::lonhttpdurl($imgfile);
                    } else {
                        $fullsize = $imgfile;
                    }
                }
                $datatable .= '<td>';
                if ($img eq 'login') {
                    $datatable .= $login_hdr_pick;
                } 
                $datatable .= &image_changes($is_custom->{$img},$alt_text->{$img},$img_import,
                                             $showfile,$fullsize,$role,$img,$imgfile,$logincolors);
            } else {
                $datatable .= '<td colspan="2" class="LC_right_item"><br />'.
                              &mt('Upload:');
            }
        } else {
            $datatable .= '<td colspan="2" class="LC_right_item"><br />'.
                          &mt('Upload:');
        }
        if ($switchserver) {
            $datatable .= &mt('Upload to library server: [_1]',$switchserver);
        } else {
            if ($img ne 'login') { # suppress file selection for Log-in header
                $datatable .='&nbsp;<input type="file" name="'.$role.'_'.$img.'" />';
            }
        }
        $datatable .= '</td></tr>';
    }
    $itemcount ++;
    $css_class = $itemcount%2?' class="LC_odd_row"':'';
    $datatable .= '<tr'.$css_class.'>'.
                  '<td>'.$choices->{'bgs'}.'</td>';
    my $bgs_def;
    foreach my $item (@{$bgs}) {
        if (!$is_custom->{$item}) {
            $bgs_def .= '<td><span class="LC_nobreak">'.$choices->{$item}.'</span>&nbsp;<span id="css_default_'.$role.'_'.$item.'" style="background-color: '.$defaults->{'bgs'}{$item}.';">&nbsp;&nbsp;&nbsp;</span><br />'.$defaults->{'bgs'}{$item}.'</td>';
        }
    }
    if ($bgs_def) {
        $datatable .= '<td>'.&mt('Default(s) in use:').'<br /><table border="0"><tr>'.$bgs_def.'</tr></table></td>';
    } else {
        $datatable .= '<td>&nbsp;</td>';
    }
    $datatable .= '<td class="LC_right_item">'.
                  '<table border="0"><tr>';
    foreach my $item (@{$bgs}) {
        my $link = &color_pick($phase,$role,$item,$choices->{$item},$designs->{'bgs'}{$item});
        $datatable .= '<td align="center">'.$link;
        if ($designs->{'bgs'}{$item}) {
            $datatable .= '&nbsp;<span id="css_'.$role.'_'.$item.'" style="background-color: '.$designs->{'bgs'}{$item}.';">&nbsp;&nbsp;&nbsp;</span>';
        }
        $datatable .= '<br /><input type="text" size="8" name="'.$role.'_'.$item.'" value="'.$designs->{'bgs'}{$item}.
                      '" onblur = "javascript:colchg_span('."'css_".$role.'_'.$item."'".',this);" /></td>';
    }
    $datatable .= '</tr></table></td></tr>';
    $itemcount ++;
    $css_class = $itemcount%2?' class="LC_odd_row"':'';
    $datatable .= '<tr'.$css_class.'>'.
                  '<td>'.$choices->{'links'}.'</td>';
    my $links_def;
    foreach my $item (@{$links}) {
        if (!$is_custom->{$item}) {
            $links_def .= '<td>'.$choices->{$item}.'<br /><span id="css_default_'.$role.'_'.$item.'" style="color: '.$defaults->{'links'}{$item}.';">'.$defaults->{'links'}{$item}.'</span></td>';
        }
    }
    if ($links_def) {
        $datatable .= '<td>'.&mt('Default(s) in use:').'<br /><table border="0"><tr>'.$links_def.'</tr></table></td>';
    } else {
        $datatable .= '<td>&nbsp;</td>';
    }
    $datatable .= '<td class="LC_right_item">'.
                  '<table border="0"><tr>';
    foreach my $item (@{$links}) {
        $datatable .= '<td align="center">'."\n".
                      &color_pick($phase,$role,$item,$choices->{$item},
                                  $designs->{'links'}{$item});
        if ($designs->{'links'}{$item}) {
            $datatable.='&nbsp;<span id="css_'.$role.'_'.$item.'" style="background-color: '.$designs->{'links'}{$item}.';">&nbsp;&nbsp;&nbsp;</span>';
        }
        $datatable .= '<br /><input type="text" size="8" name="'.$role.'_'.$item.'" value="'.$designs->{'links'}{$item}.
                      '" /></td>';
    }
    $$rowtotal += $itemcount;
    return $datatable;
}

sub logo_display_options {
    my ($img,$defaults,$designs) = @_;
    my $checkedon;
    if (ref($defaults) eq 'HASH') {
        if (ref($defaults->{'showlogo'}) eq 'HASH') {
            if ($defaults->{'showlogo'}{$img}) {
                $checkedon = 'checked="checked" ';     
            }
        } 
    }
    if (ref($designs) eq 'HASH') {
        if (ref($designs->{'showlogo'}) eq 'HASH') {
            if (defined($designs->{'showlogo'}{$img})) {
                if ($designs->{'showlogo'}{$img} == 0) {
                    $checkedon = '';
                } elsif ($designs->{'showlogo'}{$img} == 1) {
                    $checkedon = 'checked="checked" ';
                }
            }
        }
    }
    return '<br /><label>&nbsp;&nbsp;<input type="checkbox" name="'.
           'login_showlogo_'.$img.'" value="1" '.$checkedon.'/>'.
           &mt('show').'</label>'."\n";
}

sub login_header_options  {
    my ($img,$role,$defaults,$is_custom,$choices) = @_;
    my $output = '';
    if ((!$is_custom->{'textcol'}) || (!$is_custom->{'bgcol'})) {
        $output .= &mt('Text default(s):').'<br />';
        if (!$is_custom->{'textcol'}) {
            $output .= $choices->{'textcol'}.':&nbsp;'.$defaults->{'logintext'}{'textcol'}.
                       '&nbsp;&nbsp;&nbsp;';
        }
        if (!$is_custom->{'bgcol'}) {
            $output .= $choices->{'bgcol'}.':&nbsp;'.
                       '<span id="css_'.$role.'_font" style="background-color: '.
                       $defaults->{'logintext'}{'bgcol'}.';">&nbsp;&nbsp;&nbsp;</span>';
        }
        $output .= '<br />';
    }
    $output .='<br />';
    return $output;
}

sub login_text_colors {
    my ($img,$role,$logintext,$phase,$choices,$designs) = @_;
    my $color_menu = '<table border="0"><tr>';
    foreach my $item (@{$logintext}) {
        my $link = &color_pick($phase,$role,$item,$choices->{$item},$designs->{'logintext'}{$item});
        $color_menu .= '<td align="center">'.$link;
        if ($designs->{'logintext'}{$item}) {
            $color_menu .= '&nbsp;<span id="css_'.$role.'_'.$item.'" style="background-color: '.$designs->{'logintext'}{$item}.';">&nbsp;&nbsp;&nbsp;</span>';
        }
        $color_menu .= '<br /><input type="text" size="8" name="'.$role.'_'.$item.'" value="'.
                       $designs->{'logintext'}{$item}.'" onblur = "javascript:colchg_span('."'css_".$role.'_'.$item."'".',this);" /></td>'.
                       '<td>&nbsp;</td>';
    }
    $color_menu .= '</tr></table><br />';
    return $color_menu;
}

sub image_changes {
    my ($is_custom,$alt_text,$img_import,$showfile,$fullsize,$role,$img,$imgfile,$logincolors) = @_;
    my $output;
    if ($img eq 'login') {
            # suppress image for Log-in header
    } elsif (!$is_custom) {
        if ($img ne 'domlogo') {
            $output .= &mt('Default image:').'<br />';
        } else {
            $output .= &mt('Default in use:').'<br />';
        }
    }
    if ($img eq 'login') { # suppress image for Log-in header
        $output .= '<td>'.$logincolors;
    } else {
        if ($img_import) {
            $output .= '<input type="hidden" name="'.$role.'_import_'.$img.'" value="'.$imgfile.'" />';
        }
        $output .= '<a href="'.$fullsize.'" target="_blank"><img src="'.
                   $showfile.'" alt="'.$alt_text.'" border="0" /></a></td>';
        if ($is_custom) {
            $output .= '<td>'.$logincolors.'<span class="LC_nobreak"><label>'.
                       '<input type="checkbox" name="'.
                       $role.'_del_'.$img.'" value="1" />'.&mt('Delete?').
                       '</label>&nbsp;'.&mt('Replace:').'</span><br />';
        } else {
            $output .= '<td valign="bottom">'.$logincolors.&mt('Upload:').'<br />';
        }
    }
    return $output;
}

sub color_pick {
    my ($phase,$role,$item,$desc,$curcol) = @_;
    my $link = '<a href="javascript:pjump('."'color_custom','".$desc.
               "','".$curcol."','".$role.'_'.$item."','parmform.pres','psub'".
               ');">'.$desc.'</a>';
    return $link;
}

sub print_quotas {
    my ($dom,$settings,$rowtotal,$action) = @_;
    my $context;
    if ($action eq 'quotas') {
        $context = 'tools';
    } else {
        $context = $action;
    }
    my ($datatable,$defaultquota,@usertools,@options,%validations);
    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
    my $typecount = 0;
    my ($css_class,%titles);
    if ($context eq 'requestcourses') {
        @usertools = ('official','unofficial','community');
        @options =('norequest','approval','validate','autolimit');
        %validations = &Apache::lonnet::auto_courserequest_checks($dom);
        %titles = &courserequest_titles();
    } else {
        @usertools = ('aboutme','blog','portfolio');
        %titles = &tool_titles();
    }
    if (ref($types) eq 'ARRAY') {
        foreach my $type (@{$types}) {
            my $currdefquota;
            unless ($context eq 'requestcourses') {
                if (ref($settings) eq 'HASH') {
                    if (ref($settings->{defaultquota}) eq 'HASH') {
                        $currdefquota = $settings->{defaultquota}->{$type}; 
                    } else {
                        $currdefquota = $settings->{$type};
                    }
                }
            }
            if (defined($usertypes->{$type})) {
                $typecount ++;
                $css_class = $typecount%2?' class="LC_odd_row"':'';
                $datatable .= '<tr'.$css_class.'>'.
                              '<td>'.$usertypes->{$type}.'</td>'.
                              '<td class="LC_left_item">';
                if ($context eq 'requestcourses') {
                    $datatable .= '<table><tr>';
                }
                my %cell;  
                foreach my $item (@usertools) {
                    if ($context eq 'requestcourses') {
                        my ($curroption,$currlimit);
                        if (ref($settings) eq 'HASH') {
                            if (ref($settings->{$item}) eq 'HASH') {
                                $curroption = $settings->{$item}->{$type};
                                if ($curroption =~ /^autolimit=(\d*)$/) {
                                    $currlimit = $1; 
                                }
                            }
                        }
                        if (!$curroption) {
                            $curroption = 'norequest';
                        }
                        $datatable .= '<th>'.$titles{$item}.'</th>';
                        foreach my $option (@options) {
                            my $val = $option;
                            if ($option eq 'norequest') {
                                $val = 0;  
                            }
                            if ($option eq 'validate') {
                                my $canvalidate = 0;
                                if (ref($validations{$item}) eq 'HASH') { 
                                    if ($validations{$item}{$type}) {
                                        $canvalidate = 1;
                                    }
                                }
                                next if (!$canvalidate);
                            }
                            my $checked = '';
                            if ($option eq $curroption) {
                                $checked = ' checked="checked"';
                            } elsif ($option eq 'autolimit') {
                                if ($curroption =~ /^autolimit/) {
                                    $checked = ' checked="checked"';
                                }                       
                            } 
                            $cell{$item} .= '<span class="LC_nobreak"><label>'.
                                  '<input type="radio" name="crsreq_'.$item.
                                  '_'.$type.'" value="'.$val.'"'.$checked.' />'.
                                  $titles{$option}.'</label>';
                            if ($option eq 'autolimit') {
                                $cell{$item} .= '&nbsp;<input type="text" name="crsreq_'.
                                                $item.'_limit_'.$type.'" size="1" '.
                                                'value="'.$currlimit.'" />';
                            }
                            $cell{$item} .= '</span> ';
                            if ($option eq 'autolimit') {
                                $cell{$item} .= $titles{'unlimited'};
                            }
                        }
                    } else {
                        my $checked = 'checked="checked" ';
                        if (ref($settings) eq 'HASH') {
                            if (ref($settings->{$item}) eq 'HASH') {
                                if ($settings->{$item}->{$type} == 0) {
                                    $checked = '';
                                } elsif ($settings->{$item}->{$type} == 1) {
                                    $checked =  'checked="checked" ';
                                }
                            }
                        }
                        $datatable .= '<span class="LC_nobreak"><label>'.
                                      '<input type="checkbox" name="'.$context.'_'.$item.
                                      '" value="'.$type.'" '.$checked.'/>'.$titles{$item}.
                                      '</label></span>&nbsp; ';
                    }
                }
                if ($context eq 'requestcourses') {
                    $datatable .= '</tr><tr>';
                    foreach my $item (@usertools) {
                        $datatable .= '<td style="vertical-align: top">'.$cell{$item}.'</td>';  
                    }
                    $datatable .= '</tr></table>';
                }
                $datatable .= '</td>';
                unless ($context eq 'requestcourses') {
                    $datatable .= 
                              '<td class="LC_right_item"><span class="LC_nobreak">'.
                              '<input type="text" name="quota_'.$type.
                              '" value="'.$currdefquota.
                              '" size="5" /> Mb</span></td>';
                }
                $datatable .= '</tr>';
            }
        }
    }
    unless ($context eq 'requestcourses') {
        $defaultquota = '20';
        if (ref($settings) eq 'HASH') {
            if (ref($settings->{'defaultquota'}) eq 'HASH') {
                $defaultquota = $settings->{'defaultquota'}->{'default'};
            } elsif (defined($settings->{'default'})) {
                $defaultquota = $settings->{'default'};
            }
        }
    }
    $typecount ++;
    $css_class = $typecount%2?' class="LC_odd_row"':'';
    $datatable .= '<tr'.$css_class.'>'.
                  '<td>'.$othertitle.'</td>'.
                  '<td class="LC_left_item">';
    if ($context eq 'requestcourses') {
        $datatable .= '<table><tr>';
    }
    my %defcell;
    foreach my $item (@usertools) {
        if ($context eq 'requestcourses') {
            my ($curroption,$currlimit);
            if (ref($settings) eq 'HASH') {
                if (ref($settings->{$item}) eq 'HASH') {
                    $curroption = $settings->{$item}->{'default'};
                    if ($curroption =~ /^autolimit=(\d*)$/) {
                        $currlimit = $1;
                    }
                }
            }
            if (!$curroption) {
                $curroption = 'norequest';
            }
            $datatable .= '<th>'.$titles{$item}.'</th>';
            foreach my $option (@options) {
                my $val = $option;
                if ($option eq 'norequest') {
                    $val = 0;
                }
                if ($option eq 'validate') {
                    my $canvalidate = 0;
                    if (ref($validations{$item}) eq 'HASH') {
                        if ($validations{$item}{'default'}) {
                            $canvalidate = 1;
                        }
                    }
                    next if (!$canvalidate);
                }
                my $checked = '';
                if ($option eq $curroption) {
                    $checked = ' checked="checked"';
                } elsif ($option eq 'autolimit') {
                    if ($curroption =~ /^autolimit/) {
                        $checked = ' checked="checked"';
                    }
                }
                $defcell{$item} .= '<span class="LC_nobreak"><label>'.
                                  '<input type="radio" name="crsreq_'.$item.
                                  '_default" value="'.$val.'"'.$checked.' />'.
                                  $titles{$option}.'</label>';
                if ($option eq 'autolimit') {
                    $defcell{$item} .= '&nbsp;<input type="text" name="crsreq_'.
                                       $item.'_limit_default" size="1" '.
                                       'value="'.$currlimit.'" />';
                }
                $defcell{$item} .= '</span> ';
                if ($option eq 'autolimit') {
                    $defcell{$item} .= $titles{'unlimited'};
                }
            }
        } else {
            my $checked = 'checked="checked" ';
            if (ref($settings) eq 'HASH') {
                if (ref($settings->{$item}) eq 'HASH') {
                    if ($settings->{$item}->{'default'} == 0) {
                        $checked = '';
                    } elsif ($settings->{$item}->{'default'} == 1) {
                        $checked = 'checked="checked" ';
                    }
                }
            }
            $datatable .= '<span class="LC_nobreak"><label>'.
                          '<input type="checkbox" name="'.$context.'_'.$item.
                          '" value="default" '.$checked.'/>'.$titles{$item}.
                          '</label></span>&nbsp; ';
        }
    }
    if ($context eq 'requestcourses') {
        $datatable .= '</tr><tr>';
        foreach my $item (@usertools) {
            $datatable .= '<td style="vertical-align: top">'.$defcell{$item}.'</td>';
        }
        $datatable .= '</tr></table>';
    }
    $datatable .= '</td>';
    unless ($context eq 'requestcourses') {
        $datatable .= '<td class="LC_right_item"><span class="LC_nobreak">'.
                      '<input type="text" name="defaultquota" value="'.
                      $defaultquota.'" size="5" /> Mb</span></td>';
    }
    $datatable .= '</tr>';
    $typecount ++;
    $css_class = $typecount%2?' class="LC_odd_row"':'';
    $datatable .= '<tr'.$css_class.'>'.
                  '<td>'.&mt('LON-CAPA Advanced Users').' ';
    if ($context eq 'requestcourses') {
        $datatable .= &mt('(overrides affiliation, if set)').
                      '</td>'.
                      '<td class="LC_left_item">'.
                      '<table><tr>';
    } else {
        $datatable .= &mt('(overrides affiliation, if checked)').
                      '</td>'.
                      '<td class="LC_left_item" colspan="2">'.
                      '<br />';
    }
    my %advcell;
    foreach my $item (@usertools) {
        if ($context eq 'requestcourses') {
            my ($curroption,$currlimit);
            if (ref($settings) eq 'HASH') {
                if (ref($settings->{$item}) eq 'HASH') {
                    $curroption = $settings->{$item}->{'_LC_adv'};
                    if ($curroption =~ /^autolimit=(\d*)$/) {
                        $currlimit = $1;
                    }
                }
            }
            $datatable .= '<th>'.$titles{$item}.'</th>';
            my $checked = '';
            if ($curroption eq '') {
                $checked = ' checked="checked"';
            }
            $advcell{$item} .= '<span class="LC_nobreak"><label>'.
                               '<input type="radio" name="crsreq_'.$item.
                               '__LC_adv" value=""'.$checked.' />'.
                               &mt('No override set').'</label></span>&nbsp; ';
            foreach my $option (@options) {
                my $val = $option;
                if ($option eq 'norequest') {
                    $val = 0;
                }
                if ($option eq 'validate') {
                    my $canvalidate = 0;
                    if (ref($validations{$item}) eq 'HASH') {
                        if ($validations{$item}{'_LC_adv'}) {
                            $canvalidate = 1;
                        }
                    }
                    next if (!$canvalidate);
                }
                my $checked = '';
                if ($val eq $curroption) {
                    $checked = ' checked="checked"';
                } elsif ($option eq 'autolimit') {
                    if ($curroption =~ /^autolimit/) {
                        $checked = ' checked="checked"';
                    }
                }
                $advcell{$item} .= '<span class="LC_nobreak"><label>'.
                                  '<input type="radio" name="crsreq_'.$item.
                                  '__LC_adv" value="'.$val.'"'.$checked.' />'.
                                  $titles{$option}.'</label>';
                if ($option eq 'autolimit') {
                    $advcell{$item} .= '&nbsp;<input type="text" name="crsreq_'.
                                       $item.'_limit__LC_adv" size="1" '.
                                       'value="'.$currlimit.'" />';
                }
                $advcell{$item} .= '</span> ';
                if ($option eq 'autolimit') {
                    $advcell{$item} .= $titles{'unlimited'};
                }
            }
        } else {
            my $checked = 'checked="checked" ';
            if (ref($settings) eq 'HASH') {
                if (ref($settings->{$item}) eq 'HASH') {
                    if ($settings->{$item}->{'_LC_adv'} == 0) {
                        $checked = '';
                    } elsif ($settings->{$item}->{'_LC_adv'} == 1) {
                        $checked = 'checked="checked" ';
                    }
                }
            }
            $datatable .= '<span class="LC_nobreak"><label>'.
                          '<input type="checkbox" name="'.$context.'_'.$item.
                          '" value="_LC_adv" '.$checked.'/>'.$titles{$item}.
                          '</label></span>&nbsp; ';
        }
    }
    if ($context eq 'requestcourses') {
        $datatable .= '</tr><tr>';
        foreach my $item (@usertools) {
            $datatable .= '<td style="vertical-align: top">'.$advcell{$item}.'</td>';
        }
        $datatable .= '</tr></table>';
    }
    $datatable .= '</td></tr>';
    $$rowtotal += $typecount;
    return $datatable;
}

sub print_courserequestmail {
    my ($dom,$settings,$rowtotal) = @_;
    my ($now,$datatable,%dompersonnel,@domcoord,@currapproval,$rows);
    $now = time;
    $rows = 0;
    %dompersonnel = &Apache::lonnet::get_domain_roles($dom,['dc'],$now,$now);
    foreach my $server (keys(%dompersonnel)) {
        foreach my $user (sort(keys(%{$dompersonnel{$server}}))) {
            my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user);
            if (!grep(/^$uname:$udom$/,@domcoord)) {
                push(@domcoord,$uname.':'.$udom);
            }
        }
    }
    if (ref($settings) eq 'HASH') {
        if (ref($settings->{'notify'}) eq 'HASH') {
            if ($settings->{'notify'}{'approval'} ne '') {
               @currapproval = split(',',$settings->{'notify'}{'approval'});
            }
        }
    }
    if (@currapproval) {
        foreach my $dc (@currapproval) {
            unless (grep(/^\Q$dc\E$/,@domcoord)) {
                push(@domcoord,$dc);
            }
        }
    }
    @domcoord = sort(@domcoord);
    my $numinrow = 4;
    my $numdc = @domcoord;
    my $css_class = 'class="LC_odd_row"';
    $datatable = '<tr'.$css_class.'>'.
                 ' <td>'.&mt('Receive notification of course requests requiring approval.').
                 ' </td>'.
                 ' <td class="LC_left_item">';
    if (@domcoord > 0) {
        $datatable .= '<table>';
        for (my $i=0; $i<$numdc; $i++) {
            my $rem = $i%($numinrow);
            if ($rem == 0) {
                if ($i > 0) {
                    $datatable .= '</tr>';
                }
                $datatable .= '<tr>';
                $rows ++;
            }
            my $check = ' ';
            if (grep(/^\Q$domcoord[$i]\E$/,@currapproval)) {
                $check = ' checked="checked" ';
            }
            my ($uname,$udom) = split(':',$domcoord[$i]);
            my $fullname = &Apache::loncommon::plainname($uname,$udom);
            if ($i == $numdc-1) {
                my $colsleft = $numinrow-$rem;
                if ($colsleft > 1) {
                    $datatable .= '<td colspan="'.$colsleft.'" class="LC_left_item">';
                } else {
                    $datatable .= '<td class="LC_left_item">';
                }
            } else {
                $datatable .= '<td class="LC_left_item">';
            }
            $datatable .= '<span class="LC_nobreak"><label>'.
                          '<input type="checkbox" name="reqapprovalnotify" '.
                          'value="'.$domcoord[$i].'"'.$check.'/>'.
                          $fullname.'</label></span></td>';
        }
        $datatable .= '</tr></table>';
    } else {
        $datatable .= &mt('There are no active Domain Coordinators');
        $rows ++;
    }
    $datatable .='</td></tr>';
    $$rowtotal += $rows;
    return $datatable;
}

sub print_autoenroll {
    my ($dom,$settings,$rowtotal) = @_;
    my $autorun = &Apache::lonnet::auto_run(undef,$dom),
    my ($defdom,$runon,$runoff,$coownerson,$coownersoff);
    if (ref($settings) eq 'HASH') {
        if (exists($settings->{'run'})) {
            if ($settings->{'run'} eq '0') {
                $runoff = ' checked="checked" ';
                $runon = ' ';
            } else {
                $runon = ' checked="checked" ';
                $runoff = ' ';
            }
        } else {
            if ($autorun) {
                $runon = ' checked="checked" ';
                $runoff = ' ';
            } else {
                $runoff = ' checked="checked" ';
                $runon = ' ';
            }
        }
        if (exists($settings->{'co-owners'})) {
            if ($settings->{'co-owners'} eq '0') {
                $coownersoff = ' checked="checked" ';
                $coownerson = ' ';
            } else {
                $coownerson = ' checked="checked" ';
                $coownersoff = ' ';
            }
        } else {
            $coownersoff = ' checked="checked" ';
            $coownerson = ' ';
        }
        if (exists($settings->{'sender_domain'})) {
            $defdom = $settings->{'sender_domain'};
        }
    } else {
        if ($autorun) {
            $runon = ' checked="checked" ';
            $runoff = ' ';
        } else {
            $runoff = ' checked="checked" ';
            $runon = ' ';
        }
    }
    my $domform = &Apache::loncommon::select_dom_form($defdom,'sender_domain',1);
    my $notif_sender;
    if (ref($settings) eq 'HASH') {
        $notif_sender = $settings->{'sender_uname'};
    }
    my $datatable='<tr class="LC_odd_row">'.
                  '<td>'.&mt('Auto-enrollment active?').'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
                  '<input type="radio" name="autoenroll_run"'.
                  $runon.' value="1" />'.&mt('Yes').'</label>&nbsp;'.
                  '<label><input type="radio" name="autoenroll_run"'.
                  $runoff.' value="0" />'.&mt('No').'</label></span></td>'.
                  '</tr><tr>'.
                  '<td>'.&mt('Notification messages - sender').
                  '</td><td class="LC_right_item"><span class="LC_nobreak">'.
                  &mt('username').':&nbsp;'.
                  '<input type="text" name="sender_uname" value="'.
                  $notif_sender.'" size="10" />&nbsp;&nbsp;'.&mt('domain').
                  ':&nbsp;'.$domform.'</span></td></tr>'.
                  '<tr class="LC_odd_row">'.
                  '<td>'.&mt('Automatically assign co-ownership').'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
                  '<input type="radio" name="autoassign_coowners"'.
                  $coownerson.' value="1" />'.&mt('Yes').'</label>&nbsp;'.
                  '<label><input type="radio" name="autoassign_coowners"'.
                  $coownersoff.' value="0" />'.&mt('No').'</label></span></td>'.
                  '</tr>';
    $$rowtotal += 3;
    return $datatable;
}

sub print_autoupdate {
    my ($position,$dom,$settings,$rowtotal) = @_;
    my $datatable;
    if ($position eq 'top') {
        my $updateon = ' ';
        my $updateoff = ' checked="checked" ';
        my $classlistson = ' ';
        my $classlistsoff = ' checked="checked" ';
        if (ref($settings) eq 'HASH') {
            if ($settings->{'run'} eq '1') {
                $updateon = $updateoff;
                $updateoff = ' ';
            }
            if ($settings->{'classlists'} eq '1') {
                $classlistson = $classlistsoff;
                $classlistsoff = ' ';
            }
        }
        my %title = (
                   run => 'Auto-update active?',
                   classlists => 'Update information in classlists?',
                    );
        $datatable = '<tr class="LC_odd_row">'. 
                  '<td>'.&mt($title{'run'}).'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
                  '<input type="radio" name="autoupdate_run"'.
                  $updateon.' value="1" />'.&mt('Yes').'</label>&nbsp;'.
                  '<label><input type="radio" name="autoupdate_run"'.
                  $updateoff.'value="0" />'.&mt('No').'</label></span></td>'.
                  '</tr><tr>'.
                  '<td>'.&mt($title{'classlists'}).'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak">'.
                  '<label><input type="radio" name="classlists"'.
                  $classlistson.' value="1" />'.&mt('Yes').'</label>&nbsp;'.
                  '<label><input type="radio" name="classlists"'.
                  $classlistsoff.'value="0" />'.&mt('No').'</label></span></td>'.
                  '</tr>';
        $$rowtotal += 2;
    } elsif ($position eq 'middle') {
        my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
        my $numinrow = 3;
        my $locknamesettings;
        $datatable .= &insttypes_row($settings,$types,$usertypes,
                                     $dom,$numinrow,$othertitle,
                                    'lockablenames');
        $$rowtotal ++;
    } else {
        my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
        my @fields = ('lastname','firstname','middlename','generation',
                      'permanentemail','id');
        my %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
        my $numrows = 0;
        if (ref($types) eq 'ARRAY') {
            if (@{$types} > 0) {
                $datatable = 
                    &usertype_update_row($settings,$usertypes,\%fieldtitles,
                                         \@fields,$types,\$numrows);
                    $$rowtotal += @{$types}; 
            }
        }
        $datatable .= 
            &usertype_update_row($settings,{'default' => $othertitle},
                                 \%fieldtitles,\@fields,['default'],
                                 \$numrows);
        $$rowtotal ++;     
    }
    return $datatable;
}

sub print_autocreate {
    my ($dom,$settings,$rowtotal) = @_;
    my (%createon,%createoff);
    my $curr_dc;
    my @types = ('xml','req');
    if (ref($settings) eq 'HASH') {
        foreach my $item (@types) {
            $createoff{$item} = ' checked="checked" ';
            $createon{$item} = ' ';
            if (exists($settings->{$item})) {
                if ($settings->{$item}) {
                    $createon{$item} = ' checked="checked" ';
                    $createoff{$item} = ' ';
                }
            }
        }
        $curr_dc = $settings->{'xmldc'};
    } else {
        foreach my $item (@types) {
            $createoff{$item} = ' checked="checked" ';
            $createon{$item} = ' ';
        }
    }
    $$rowtotal += 2;
    my $datatable='<tr class="LC_odd_row">'.
                  '<td>'.&mt('Create pending official courses from XML files').'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
                  '<input type="radio" name="autocreate_xml"'.
                  $createon{'xml'}.' value="1" />'.&mt('Yes').'</label>&nbsp;'.
                  '<label><input type="radio" name="autocreate_xml"'.
                  $createoff{'xml'}.' value="0" />'.&mt('No').'</label></span>'.
                  '</td></tr><tr>'.
                  '<td>'.&mt('Create pending requests for official courses (if validated)').'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
                  '<input type="radio" name="autocreate_req"'.
                  $createon{'req'}.' value="1" />'.&mt('Yes').'</label>&nbsp;'.
                  '<label><input type="radio" name="autocreate_req"'.
                  $createoff{'req'}.' value="0" />'.&mt('No').'</label></span>';
    my ($numdc,$dctable) = &active_dc_picker($dom,$curr_dc);
    if ($numdc > 1) {
        $datatable .= '</td></tr><tr class="LC_odd_row"><td>'.
                      &mt('Course creation processed as: (choose Dom. Coord.)'). 
                      '</td><td class="LC_left_item">'.$dctable.'</td></tr>';
        $$rowtotal ++ ;
    } else {
        $datatable .= $dctable.'</td></tr>';
    }
    return $datatable;
}

sub print_directorysrch {
    my ($dom,$settings,$rowtotal) = @_;
    my $srchon = ' ';
    my $srchoff = ' checked="checked" ';
    my ($exacton,$containson,$beginson);
    my $localon = ' ';
    my $localoff = ' checked="checked" ';
    if (ref($settings) eq 'HASH') {
        if ($settings->{'available'} eq '1') {
            $srchon = $srchoff;
            $srchoff = ' ';
        }
        if ($settings->{'localonly'} eq '1') {
            $localon = $localoff;
            $localoff = ' ';
        }
        if (ref($settings->{'searchtypes'}) eq 'ARRAY') {
            foreach my $type (@{$settings->{'searchtypes'}}) {
                if ($type eq 'exact') {
                    $exacton = ' checked="checked" ';
                } elsif ($type eq 'contains') {
                    $containson = ' checked="checked" ';
                } elsif ($type eq 'begins') {
                    $beginson = ' checked="checked" ';
                }
            }
        } else {
            if ($settings->{'searchtypes'} eq 'exact') {
                $exacton = ' checked="checked" ';
            } elsif ($settings->{'searchtypes'} eq 'contains') {
                $containson = ' checked="checked" ';
            } elsif ($settings->{'searchtypes'} eq 'specify') {
                $exacton = ' checked="checked" ';
                $containson = ' checked="checked" ';
            }
        }
    }
    my ($searchtitles,$titleorder) = &sorted_searchtitles();
    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);

    my $numinrow = 4;
    my $cansrchrow = 0;
    my $datatable='<tr class="LC_odd_row">'.
                  '<td colspan="2"><span class ="LC_nobreak">'.&mt('Directory search available?').'</span></td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
                  '<input type="radio" name="dirsrch_available"'.
                  $srchon.' value="1" />'.&mt('Yes').'</label>&nbsp;'.
                  '<label><input type="radio" name="dirsrch_available"'.
                  $srchoff.' value="0" />'.&mt('No').'</label></span></td>'.
                  '</tr><tr>'.
                  '<td colspan="2"><span class ="LC_nobreak">'.&mt('Other domains can search?').'</span></td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
                  '<input type="radio" name="dirsrch_localonly"'.
                  $localoff.' value="0" />'.&mt('Yes').'</label>&nbsp;'.
                  '<label><input type="radio" name="dirsrch_localonly"'.
                  $localon.' value="1" />'.&mt('No').'</label></span></td>'.
                  '</tr>';
    $$rowtotal += 2;
    if (ref($usertypes) eq 'HASH') {
        if (keys(%{$usertypes}) > 0) {
            $datatable .= &insttypes_row($settings,$types,$usertypes,$dom,
                                         $numinrow,$othertitle,'cansearch');
            $cansrchrow = 1;
        }
    }
    if ($cansrchrow) {
        $$rowtotal ++;
        $datatable .= '<tr>';
    } else {
        $datatable .= '<tr class="LC_odd_row">';
    }
    $datatable .= '<td><span class ="LC_nobreak">'.&mt('Supported search methods').
                  '</span></td><td class="LC_left_item" colspan="2"><table><tr>';
    foreach my $title (@{$titleorder}) {
        if (defined($searchtitles->{$title})) {
            my $check = ' ';
            if (ref($settings) eq 'HASH') {
                if (ref($settings->{'searchby'}) eq 'ARRAY') {
                    if (grep(/^\Q$title\E$/,@{$settings->{'searchby'}})) {
                        $check = ' checked="checked" ';
                    }
                }
            }
            $datatable .= '<td class="LC_left_item">'.
                          '<span class="LC_nobreak"><label>'.
                          '<input type="checkbox" name="searchby" '.
                          'value="'.$title.'"'.$check.'/>'.
                          $searchtitles->{$title}.'</label></span></td>';
        }
    }
    $datatable .= '</tr></table></td></tr>';
    $$rowtotal ++;
    if ($cansrchrow) {
        $datatable .= '<tr class="LC_odd_row">';
    } else {
        $datatable .= '<tr>';
    }
    $datatable .= '<td><span class ="LC_nobreak">'.&mt('Search latitude').'</span></td>'.   
                  '<td class="LC_left_item" colspan="2">'.
                  '<span class="LC_nobreak"><label>'.
                  '<input type="checkbox" name="searchtypes" '.
                  $exacton.' value="exact" />'.&mt('Exact match').
                  '</label>&nbsp;'.
                  '<label><input type="checkbox" name="searchtypes" '.
                  $beginson.' value="begins" />'.&mt('Begins with').
                  '</label>&nbsp;'.
                  '<label><input type="checkbox" name="searchtypes" '.
                  $containson.' value="contains" />'.&mt('Contains').
                  '</label></span></td></tr>';
    $$rowtotal ++;
    return $datatable;
}

sub print_contacts {
    my ($dom,$settings,$rowtotal) = @_;
    my $datatable;
    my @contacts = ('adminemail','supportemail');
    my (%checked,%to,%otheremails,%bccemails);
    my @mailings = ('errormail','packagesmail','lonstatusmail','helpdeskmail',
                    'requestsmail');
    foreach my $type (@mailings) {
        $otheremails{$type} = '';
    }
    $bccemails{'helpdeskmail'} = '';
    if (ref($settings) eq 'HASH') {
        foreach my $item (@contacts) {
            if (exists($settings->{$item})) {
                $to{$item} = $settings->{$item};
            }
        }
        foreach my $type (@mailings) {
            if (exists($settings->{$type})) {
                if (ref($settings->{$type}) eq 'HASH') {
                    foreach my $item (@contacts) {
                        if ($settings->{$type}{$item}) {
                            $checked{$type}{$item} = ' checked="checked" ';
                        }
                    }
                    $otheremails{$type} = $settings->{$type}{'others'};
                    if ($type eq 'helpdeskmail') {
                        $bccemails{$type} = $settings->{$type}{'bcc'};
                    }
                }
            } elsif ($type eq 'lonstatusmail') {
                $checked{'lonstatusmail'}{'adminemail'} = ' checked="checked" ';
            }
        }
    } else {
        $to{'supportemail'} = $Apache::lonnet::perlvar{'lonSupportEMail'};
        $to{'adminemail'} = $Apache::lonnet::perlvar{'lonAdmEMail'};
        $checked{'errormail'}{'adminemail'} = ' checked="checked" ';
        $checked{'packagesmail'}{'adminemail'} = ' checked="checked" ';
        $checked{'helpdeskmail'}{'supportemail'} = ' checked="checked" ';
        $checked{'lonstatusmail'}{'adminemail'} = ' checked="checked" '; 
        $checked{'requestsmail'}{'adminemail'} = ' checked="checked" ';
    }
    my ($titles,$short_titles) = &contact_titles();
    my $rownum = 0;
    my $css_class;
    foreach my $item (@contacts) {
        $rownum ++;
        $css_class = $rownum%2?' class="LC_odd_row"':'';
        $datatable .= '<tr'.$css_class.'>'. 
                  '<td><span class="LC_nobreak">'.$titles->{$item}.
                  '</span></td><td class="LC_right_item">'.
                  '<input type="text" name="'.$item.'" value="'.
                  $to{$item}.'" /></td></tr>';
    }
    foreach my $type (@mailings) {
        $rownum ++;
        $css_class = $rownum%2?' class="LC_odd_row"':'';
        $datatable .= '<tr'.$css_class.'>'.
                      '<td><span class="LC_nobreak">'.
                      $titles->{$type}.': </span></td>'.
                      '<td class="LC_left_item">'.
                      '<span class="LC_nobreak">';
        foreach my $item (@contacts) {
            $datatable .= '<label>'.
                          '<input type="checkbox" name="'.$type.'"'.
                          $checked{$type}{$item}.
                          ' value="'.$item.'" />'.$short_titles->{$item}.
                          '</label>&nbsp;';
        }
        $datatable .= '</span><br />'.&mt('Others').':&nbsp;&nbsp;'.
                      '<input type="text" name="'.$type.'_others" '.
                      'value="'.$otheremails{$type}.'"  />';
        if ($type eq 'helpdeskmail') {
            $datatable .= '<br />'.&mt('Bcc:').('&nbsp;'x6).
                          '<input type="text" name="'.$type.'_bcc" '.
                          'value="'.$bccemails{$type}.'"  />';
        }
        $datatable .= '</td></tr>'."\n";
    }
    $$rowtotal += $rownum;
    return $datatable;
}

sub print_helpsettings {

	my ($position,$dom,$confname,$settings,$rowtotal) = @_;
	my ($css_class,$datatable);
	
	my $switchserver = &check_switchserver($dom,$confname);
	
	my $itemcount = 1;
	
	if ($position eq 'top') {
		
		my (%checkedon,%checkedoff,%choices,%defaultchecked,@toggles);
		
		%choices =
			&Apache::lonlocal::texthash (
				submitbugs => 'Display &quot;Submit a bug&quot; link?',
		);
		
		%defaultchecked = ('submitbugs' => 'on');
		
		@toggles = ('submitbugs',);
		
		foreach my $item (@toggles) {
			if ($defaultchecked{$item} eq 'on') { 
				$checkedon{$item} = ' checked="checked" ';
				$checkedoff{$item} = ' ';
			} elsif ($defaultchecked{$item} eq 'off') {
				$checkedoff{$item} = ' checked="checked" ';
				$checkedon{$item} = ' ';
			}
		}
		
		if (ref($settings) eq 'HASH') {
			foreach my $item (@toggles) {
				if ($settings->{$item} eq '1') {
					$checkedon{$item} =  ' checked="checked" ';
					$checkedoff{$item} = ' ';
				} elsif ($settings->{$item} eq '0') {
					$checkedoff{$item} =  ' checked="checked" ';
					$checkedon{$item} = ' ';
				}
			}
		 }
		
		 foreach my $item (@toggles) {
			$css_class = $itemcount%2 ? ' class="LC_odd_row"' : '';
			$datatable .=  
				'<tr'.$css_class.'>
				<td><span class="LC_nobreak">'.$choices{$item}.'</span></td>
				<td><span class="LC_nobreak">&nbsp;</span></td>
				<td class="LC_right_item"><span class="LC_nobreak">
				<label><input type="radio" name="'.$item.'" '.$checkedon{$item}.' value="1" />'.&mt('Yes').'</label>&nbsp;
				<label><input type="radio" name="'.$item.'" '.$checkedoff{$item}.' value="0" />'.&mt('No').'</label>'.
				'</span></td>'.
				'</tr>';
			$itemcount ++;
		 }
     
     } else {
     
     	$css_class = $itemcount%2 ? ' class="LC_odd_row"' : '';
     	
     	$datatable .= '<tr'.$css_class.'>';
     	
     	if (ref($settings) eq 'HASH') {
			if ($settings->{'loginhelpurl'} ne '') {
				my($directory, $filename) = $settings->{'loginhelpurl'} =~ m/(.*\/)(.*)$/;
				$datatable .= '<td width="33%"><span class="LC_left_item"><label><a href="'.$settings->{'loginhelpurl'}.'" target="_blank">'.&mt('Custom Login Page Help File In Use').'</a></label></span></td>';
				$datatable .= '<td width="33%"><span class="LC_right_item"><label><input type="checkbox" name="loginhelpurl_del" value="1" />'.&mt('Delete?').'</label></span></td>'
			} else {
				$datatable .= '<td width="33%"><span class="LC_left_item"><label>'.&mt('Default Login Page Help File In Use').'</label></span></td>';
				$datatable .= '<td width="33%"><span class="LC_right_item">&nbsp;</span></td>';
			}
		} else {
			$datatable .= '<td><span class="LC_left_item">&nbsp;</span></td>';
			$datatable .= '<td><span class="LC_right_item">&nbsp;</span></td>';
		}
    	
     	$datatable .= '<td width="33%"><span class="LC_right_item">';
     	if ($switchserver) {
            $datatable .= &mt('Upload to library server: [_1]',$switchserver);
        } else {
        	$datatable .= &mt('Upload Custom Login Page Help File:');
            $datatable .='<input type="file" name="loginhelpurl" />';
        }
        $datatable .= '</span></td></tr>';
        
     }
     
     return $datatable;
	
}


sub radiobutton_prefs {
    my ($settings,$toggles,$defaultchecked,$choices,$itemcount) = @_;
    return unless ((ref($toggles) eq 'ARRAY') && (ref($defaultchecked) eq 'HASH') &&
                   (ref($choices) eq 'HASH'));

    my (%checkedon,%checkedoff,$datatable,$css_class);

    foreach my $item (@{$toggles}) {
        if ($defaultchecked->{$item} eq 'on') {
            $checkedon{$item} = ' checked="checked" ';
            $checkedoff{$item} = ' ';
        } elsif ($defaultchecked->{$item} eq 'off') {
            $checkedoff{$item} = ' checked="checked" ';
            $checkedon{$item} = ' ';
        }
    }
    if (ref($settings) eq 'HASH') {
        foreach my $item (@{$toggles}) {
            if ($settings->{$item} eq '1') {
                $checkedon{$item} =  ' checked="checked" ';
                $checkedoff{$item} = ' ';
            } elsif ($settings->{$item} eq '0') {
                $checkedoff{$item} =  ' checked="checked" ';
                $checkedon{$item} = ' ';
            }
        }
    }
    foreach my $item (@{$toggles}) {
        $css_class = $itemcount%2?' class="LC_odd_row"':'';
        $datatable .=
            '<tr'.$css_class.'><td><span class="LC_nobreak">'.$choices->{$item}.
            '</span></td>'.
            '<td class="LC_right_item"><span class="LC_nobreak">'.
            '<label><input type="radio" name="'.
            $item.'" '.$checkedon{$item}.' value="1" />'.&mt('Yes').
            '</label>&nbsp;<label><input type="radio" name="'.$item.'" '.
            $checkedoff{$item}.' value="0" />'.&mt('No').'</label>'.
            '</span></td>'.
            '</tr>';
        $itemcount ++;
    }
    return ($datatable,$itemcount);
}

sub print_coursedefaults {
    my ($position,$dom,$settings,$rowtotal) = @_;
    my ($css_class,$datatable);
    my $itemcount = 1;
    if ($position eq 'top') {
        my (%checkedon,%checkedoff,%choices,%defaultchecked,@toggles);
        %choices =
            &Apache::lonlocal::texthash (
                canuse_pdfforms => 'Course/Community users can create/upload PDF forms',
        );
        %defaultchecked = ('canuse_pdfforms' => 'off');
        @toggles = ('canuse_pdfforms',);
        ($datatable,$itemcount) = &radiobutton_prefs($settings,\@toggles,\%defaultchecked,
                                                 \%choices,$itemcount);
        $$rowtotal += $itemcount;
    } else {
        $css_class = $itemcount%2 ? ' class="LC_odd_row"' : '';
        my %choices =
            &Apache::lonlocal::texthash (
                anonsurvey_threshold => 'Responder count needed before showing submissions for anonymous surveys',
        );
        my $currdefresponder;
        if (ref($settings) eq 'HASH') {
            $currdefresponder = $settings->{'anonsurvey_threshold'};
        }
        if (!$currdefresponder) {
            $currdefresponder = 10;
        } elsif ($currdefresponder < 1) {
            $currdefresponder = 1;
        }
        $datatable .=
               '<tr'.$css_class.'><td><span class="LC_nobreak">'.$choices{'anonsurvey_threshold'}.
                '</span></td>'.
                '<td class="LC_right_item"><span class="LC_nobreak">'.
                '<input type="text" name="anonsurvey_threshold"'.
                ' value="'.$currdefresponder.'" size="5" /></span>'.
                '</td></tr>';
    }
    return $datatable;
}

sub print_usersessions {
    my ($position,$dom,$settings,$rowtotal) = @_;
    my ($css_class,$datatable,%checked,%choices);
    my (%by_ip,%by_location,@intdoms);
    &build_location_hashes(\@intdoms,\%by_ip,\%by_location);
    if (keys(%by_location) == 0) {
        if ($position eq 'top') {
            $datatable .= '<tr'.$css_class.'><td colspan="2">'.
                          &mt('Nothing to set here, as the cluster to which this domain belongs only contains this institution.');
        }
    }
    my %lt = &usersession_titles();
    my $itemcount = 1;
    my $numinrow = 5;
    my $prefix;
    my @types;
    if ($position eq 'top') {
        $prefix = 'hosted';
        @types = ('excludedomain','includedomain');
    } else {
        $prefix = 'remote';
        @types = ('version','excludedomain','includedomain');
    }
    my (%current,%checkedon,%checkedoff);
    my @lcversions = &Apache::lonnet::all_loncaparevs();
    my @locations = sort(keys(%by_location));
    foreach my $type (@types) {
        $checkedon{$type} = '';
        $checkedoff{$type} = ' checked="checked"';
    }
    if (ref($settings) eq 'HASH') {
        if (ref($settings->{$prefix}) eq 'HASH') {
            foreach my $key (keys(%{$settings->{$prefix}})) {
                $current{$key} = $settings->{$prefix}{$key};
                if ($key eq 'version') {
                    if ($current{$key} ne '') {
                        $checkedon{$key} = ' checked="checked"';
                        $checkedoff{$key} = '';
                    }
                } elsif (ref($current{$key}) eq 'ARRAY') {
                    $checkedon{$key} = ' checked="checked"';
                    $checkedoff{$key} = '';
                }
            }
        }
    }
    foreach my $type (@types) {
        next if ($type ne 'version' && !@locations);
        $css_class = $itemcount%2 ? ' class="LC_odd_row"' : '';
        $datatable .= '<tr'.$css_class.'>
                       <td><span class="LC_nobreak">'.$lt{$type}.'</span><br />
                           <span class="LC_nobreak">&nbsp;
                           <label><input type="radio" name="'.$prefix.'_'.$type.'_inuse" '.$checkedoff{$type}.' value="0" />'.&mt('Not in use').'</label>&nbsp;
                           <label><input type="radio" name="'.$prefix.'_'.$type.'_inuse" '.$checkedon{$type}.' value="1" />'.&mt('In use').'</label></span></td><td>';
        if ($type eq 'version') {
            my $selector = '<select name="'.$prefix.'_version">';
            foreach my $version (@lcversions) {
                my $selected = '';
                if ($current{'version'} eq $version) {
                    $selected = ' selected="selected"';
                }
                $selector .= ' <option value="'.$version.'"'.
                             $selected.'>'.$version.'</option>';
            }
            $selector .= '</select> ';
            $datatable .= &mt('remote server must be version: [_1] or later',$selector);
        } else {
            $datatable.= '<div><input type="button" value="'.&mt('check all').'" '.
                         'onclick="javascript:checkAll(document.display.'.$prefix.'_'.$type.')"'.
                         ' />'.('&nbsp;'x2).
                         '<input type="button" value="'.&mt('uncheck all').'" '.
                         'onclick="javascript:uncheckAll(document.display.'.$prefix.'_'.$type.')" />'.
                         "\n".
                         '</div><div><table>';
            my $rem;
            for (my $i=0; $i<@locations; $i++) {
                my ($showloc,$value,$checkedtype);
                if (ref($by_location{$locations[$i]}) eq 'ARRAY') {
                    my $ip = $by_location{$locations[$i]}->[0];
                    if (ref($by_ip{$ip}) eq 'ARRAY') {
                        $value = join(':',@{$by_ip{$ip}});
                        $showloc = join(', ',@{$by_ip{$ip}});
                        if (ref($current{$type}) eq 'ARRAY') {
                            foreach my $loc (@{$by_ip{$ip}}) {  
                                if (grep(/^\Q$loc\E$/,@{$current{$type}})) {
                                    $checkedtype = ' checked="checked"';
                                    last;
                                }
                            }
                        }
                    }
                }
                $rem = $i%($numinrow);
                if ($rem == 0) {
                    if ($i > 0) {
                        $datatable .= '</tr>';
                    }
                    $datatable .= '<tr>';
                }
                $datatable .= '<td class="LC_left_item">'.
                              '<span class="LC_nobreak"><label>'.
                              '<input type="checkbox" name="'.$prefix.'_'.$type.
                              '" value="'.$value.'"'.$checkedtype.' />'.$showloc.
                              '</label></span></td>';
            }
            $rem = @locations%($numinrow);
            my $colsleft = $numinrow - $rem;
            if ($colsleft > 1 ) {
                $datatable .= '<td colspan="'.$colsleft.'" class="LC_left_item">'.
                              '&nbsp;</td>';
            } elsif ($colsleft == 1) {
                $datatable .= '<td class="LC_left_item">&nbsp;</td>';
            }
            $datatable .= '</tr></table>';
        }
        $datatable .= '</td></tr>';
        $itemcount ++;
    }
    $$rowtotal += $itemcount;
    return $datatable;
}

sub build_location_hashes {
    my ($intdoms,$by_ip,$by_location) = @_;
    return unless((ref($intdoms) eq 'ARRAY') && (ref($by_ip) eq 'HASH') &&
                  (ref($by_location) eq 'HASH')); 
    my %iphost = &Apache::lonnet::get_iphost();
    my $primary_id = &Apache::lonnet::domain($env{'request.role.domain'},'primary');
    my $primary_ip = &Apache::lonnet::get_host_ip($primary_id);
    if (ref($iphost{$primary_ip}) eq 'ARRAY') {
        foreach my $id (@{$iphost{$primary_ip}}) {
            my $intdom = &Apache::lonnet::internet_dom($id);
            unless(grep(/^\Q$intdom\E$/,@{$intdoms})) {
                push(@{$intdoms},$intdom);
            }
        }
    }
    foreach my $ip (keys(%iphost)) {
        if (ref($iphost{$ip}) eq 'ARRAY') {
            foreach my $id (@{$iphost{$ip}}) {
                my $location = &Apache::lonnet::internet_dom($id);
                if ($location) {
                    next if (grep(/^\Q$location\E$/,@{$intdoms}));
                    if (ref($by_ip->{$ip}) eq 'ARRAY') {
                        unless(grep(/^\Q$location\E$/,@{$by_ip->{$ip}})) {
                            push(@{$by_ip->{$ip}},$location);
                        }
                    } else {
                        $by_ip->{$ip} = [$location];
                    }
                }
            }
        }
    }
    foreach my $ip (sort(keys(%{$by_ip}))) {
        if (ref($by_ip->{$ip}) eq 'ARRAY') {
            @{$by_ip->{$ip}} = sort(@{$by_ip->{$ip}});
            my $first = $by_ip->{$ip}->[0];
            if (ref($by_location->{$first}) eq 'ARRAY') {
                unless (grep(/^\Q$ip\E$/,@{$by_location->{$first}})) {
                    push(@{$by_location->{$first}},$ip);
                }
            } else {
                $by_location->{$first} = [$ip];
            }
        }
    }
    return;
}

sub contact_titles {
    my %titles = &Apache::lonlocal::texthash (
                   'supportemail' => 'Support E-mail address',
                   'adminemail'   => 'Default Server Admin E-mail address',
                   'errormail'    => 'Error reports to be e-mailed to',
                   'packagesmail' => 'Package update alerts to be e-mailed to',
                   'helpdeskmail' => 'Helpdesk requests to be e-mailed to',
                   'lonstatusmail' => 'E-mail from nightly status check (warnings/errors)',
                   'requestsmail' => 'E-mail from course requests requiring approval',
                 );
    my %short_titles = &Apache::lonlocal::texthash (
                           adminemail   => 'Admin E-mail address',
                           supportemail => 'Support E-mail',
                       );   
    return (\%titles,\%short_titles);
}

sub tool_titles {
    my %titles = &Apache::lonlocal::texthash (
                     aboutme    => 'Personal Information Page',
                     blog       => 'Blog',
                     portfolio  => 'Portfolio',
                     official   => 'Official courses (with institutional codes)',
                     unofficial => 'Unofficial courses',
                     community  => 'Communities',
                 );
    return %titles;
}

sub courserequest_titles {
    my %titles = &Apache::lonlocal::texthash (
                                   official   => 'Official',
                                   unofficial => 'Unofficial',
                                   community  => 'Communities',
                                   norequest  => 'Not allowed',
                                   approval   => 'Approval by Dom. Coord.',
                                   validate   => 'With validation',
                                   autolimit  => 'Numerical limit',
                                   unlimited  => '(blank for unlimited)',
                 );
    return %titles;
}

sub courserequest_conditions {
    my %conditions = &Apache::lonlocal::texthash (
       approval    => '(Processing of request subject to approval by Domain Coordinator).',
       validate   => '(Processing of request subject to instittutional validation).',
                 );
    return %conditions;
}


sub print_usercreation {
    my ($position,$dom,$settings,$rowtotal) = @_;
    my $numinrow = 4;
    my $datatable;
    if ($position eq 'top') {
        $$rowtotal ++;
        my $rowcount = 0;
        my ($rules,$ruleorder) = &Apache::lonnet::inst_userrules($dom,'username');
        if (ref($rules) eq 'HASH') {
            if (keys(%{$rules}) > 0) {
                $datatable .= &user_formats_row('username',$settings,$rules,
                                                $ruleorder,$numinrow,$rowcount);
                $$rowtotal ++;
                $rowcount ++;
            }
        }
        my ($idrules,$idruleorder) = &Apache::lonnet::inst_userrules($dom,'id');
        if (ref($idrules) eq 'HASH') {
            if (keys(%{$idrules}) > 0) {
                $datatable .= &user_formats_row('id',$settings,$idrules,
                                                $idruleorder,$numinrow,$rowcount);
                $$rowtotal ++;
                $rowcount ++;
            }
        }
        my ($emailrules,$emailruleorder) = 
            &Apache::lonnet::inst_userrules($dom,'email');
        if (ref($emailrules) eq 'HASH') {
            if (keys(%{$emailrules}) > 0) {
                $datatable .= &user_formats_row('email',$settings,$emailrules,
                                                $emailruleorder,$numinrow,$rowcount);
                $$rowtotal ++;
                $rowcount ++;
            }
        }
        if ($rowcount == 0) {
            $datatable .= '<tr><td colspan="2">'.&mt('No format rules have been defined for usernames or IDs in this domain.').'</td></tr>';  
            $$rowtotal ++;
            $rowcount ++;
        }
    } elsif ($position eq 'middle') {
        my @creators = ('author','course','requestcrs','selfcreate');
        my ($rules,$ruleorder) =
            &Apache::lonnet::inst_userrules($dom,'username');
        my %lt = &usercreation_types();
        my %checked;
        my @selfcreate; 
        if (ref($settings) eq 'HASH') {
            if (ref($settings->{'cancreate'}) eq 'HASH') {
                foreach my $item (@creators) {
                    $checked{$item} = $settings->{'cancreate'}{$item};
                }
                if (ref($settings->{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
                    @selfcreate = @{$settings->{'cancreate'}{'selfcreate'}};
                } elsif ($settings->{'cancreate'}{'selfcreate'} ne '') {
                    if ($settings->{'cancreate'}{'selfcreate'} eq 'any') {
                        @selfcreate = ('email','login','sso');
                    } elsif ($settings->{'cancreate'}{'selfcreate'} ne 'none') {
                        @selfcreate = ($settings->{'cancreate'}{'selfcreate'});
                    }
                }
            } elsif (ref($settings->{'cancreate'}) eq 'ARRAY') {
                foreach my $item (@creators) {
                    if (grep(/^\Q$item\E$/,@{$settings->{'cancreate'}})) {
                        $checked{$item} = 'none';
                    }
                }
            }
        }
        my $rownum = 0;
        foreach my $item (@creators) {
            $rownum ++;
            if ($item ne 'selfcreate') {  
                if ($checked{$item} eq '') {
                    $checked{$item} = 'any';
                }
            }
            my $css_class;
            if ($rownum%2) {
                $css_class = '';
            } else {
                $css_class = ' class="LC_odd_row" ';
            }
            $datatable .= '<tr'.$css_class.'>'.
                         '<td><span class="LC_nobreak">'.$lt{$item}.
                         '</span></td><td align="right">';
            my @options;
            if ($item eq 'selfcreate') {
                push(@options,('email','login','sso'));
            } else {
                @options = ('any');
                if (ref($rules) eq 'HASH') {
                    if (keys(%{$rules}) > 0) {
                        push(@options,('official','unofficial'));
                    }
                }
                push(@options,'none');
            }
            foreach my $option (@options) {
                my $type = 'radio';
                my $check = ' ';
                if ($item eq 'selfcreate') {
                    $type = 'checkbox';
                    if (grep(/^\Q$option\E$/,@selfcreate)) {
                        $check = ' checked="checked" ';
                    }
                } else {
                    if ($checked{$item} eq $option) {
                        $check = ' checked="checked" ';
                    }
                } 
                $datatable .= '<span class="LC_nobreak"><label>'.
                              '<input type="'.$type.'" name="can_createuser_'.
                              $item.'" value="'.$option.'"'.$check.'/>&nbsp;'.
                              $lt{$option}.'</label>&nbsp;&nbsp;</span>';
            }
            $datatable .= '</td></tr>';
        }
        my ($othertitle,$usertypes,$types) =
            &Apache::loncommon::sorted_inst_types($dom);
        if (ref($usertypes) eq 'HASH') {
            if (keys(%{$usertypes}) > 0) {
                my $createsettings;
                if (ref($settings) eq 'HASH') {
                    $createsettings = $settings->{cancreate};
                }
                $datatable .= &insttypes_row($createsettings,$types,$usertypes,
                                             $dom,$numinrow,$othertitle,
                                             'statustocreate');
                $$rowtotal ++;
            }
        }
    } else {
        my @contexts = ('author','course','domain');
        my @authtypes = ('int','krb4','krb5','loc');
        my %checked;
        if (ref($settings) eq 'HASH') {
            if (ref($settings->{'authtypes'}) eq 'HASH') {
                foreach my $item (@contexts) {
                    if (ref($settings->{'authtypes'}{$item}) eq 'HASH') {
                        foreach my $auth (@authtypes) {
                            if ($settings->{'authtypes'}{$item}{$auth}) {
                                $checked{$item}{$auth} = ' checked="checked" ';
                            }
                        }
                    }
                }
            }
        } else {
            foreach my $item (@contexts) {
                foreach my $auth (@authtypes) {
                    $checked{$item}{$auth} = ' checked="checked" ';
                }
            }
        }
        my %title = &context_names();
        my %authname = &authtype_names();
        my $rownum = 0;
        my $css_class; 
        foreach my $item (@contexts) {
            if ($rownum%2) {
                $css_class = '';
            } else {
                $css_class = ' class="LC_odd_row" ';
            }
            $datatable .=   '<tr'.$css_class.'>'.
                            '<td>'.$title{$item}.
                            '</td><td class="LC_left_item">'.
                            '<span class="LC_nobreak">';
            foreach my $auth (@authtypes) {
                $datatable .= '<label>'. 
                              '<input type="checkbox" name="'.$item.'_auth" '.
                              $checked{$item}{$auth}.' value="'.$auth.'" />'.
                              $authname{$auth}.'</label>&nbsp;';
            }
            $datatable .= '</span></td></tr>';
            $rownum ++;
        }
        $$rowtotal += $rownum;
    }
    return $datatable;
}

sub user_formats_row {
    my ($type,$settings,$rules,$ruleorder,$numinrow,$rowcount) = @_;
    my $output;
    my %text = (
                   'username' => 'new usernames',
                   'id'       => 'IDs',
                   'email'    => 'self-created accounts (e-mail)',
               );
    my $css_class = $rowcount%2?' class="LC_odd_row"':'';
    $output = '<tr '.$css_class.'>'.
              '<td><span class="LC_nobreak">';
    if ($type eq 'email') {
        $output .= &mt("Formats disallowed for $text{$type}: ");
    } else {
        $output .= &mt("Format rules to check for $text{$type}: ");
    }
    $output .= '</span></td>'.
               '<td class="LC_left_item" colspan="2"><table>';
    my $rem;
    if (ref($ruleorder) eq 'ARRAY') {
        for (my $i=0; $i<@{$ruleorder}; $i++) {
            if (ref($rules->{$ruleorder->[$i]}) eq 'HASH') {
                my $rem = $i%($numinrow);
                if ($rem == 0) {
                    if ($i > 0) {
                        $output .= '</tr>';
                    }
                    $output .= '<tr>';
                }
                my $check = ' ';
                if (ref($settings) eq 'HASH') {
                    if (ref($settings->{$type.'_rule'}) eq 'ARRAY') {
                        if (grep(/^\Q$ruleorder->[$i]\E$/,@{$settings->{$type.'_rule'}})) {
                            $check = ' checked="checked" ';
                        }
                    }
                }
                $output .= '<td class="LC_left_item">'.
                           '<span class="LC_nobreak"><label>'.
                           '<input type="checkbox" name="'.$type.'_rule" '.
                           'value="'.$ruleorder->[$i].'"'.$check.'/>'.
                           $rules->{$ruleorder->[$i]}{'name'}.'</label></span></td>';
            }
        }
        $rem = @{$ruleorder}%($numinrow);
    }
    my $colsleft = $numinrow - $rem;
    if ($colsleft > 1 ) {
        $output .= '<td colspan="'.$colsleft.'" class="LC_left_item">'.
                   '&nbsp;</td>';
    } elsif ($colsleft == 1) {
        $output .= '<td class="LC_left_item">&nbsp;</td>';
    }
    $output .= '</tr></table></td></tr>';
    return $output;
}

sub usercreation_types {
    my %lt = &Apache::lonlocal::texthash (
                    author     => 'When adding a co-author',
                    course     => 'When adding a user to a course',
                    requestcrs => 'When requesting a course',
                    selfcreate => 'User creates own account', 
                    any        => 'Any',
                    official   => 'Institutional only ',
                    unofficial => 'Non-institutional only',
                    email      => 'E-mail address',
                    login      => 'Institutional Login',
                    sso        => 'SSO', 
                    none       => 'None',
    );
    return %lt;
}

sub authtype_names {
    my %lt = &Apache::lonlocal::texthash(
                      int    => 'Internal',
                      krb4   => 'Kerberos 4',
                      krb5   => 'Kerberos 5',
                      loc    => 'Local',
                  );
    return %lt;
}

sub context_names {
    my %context_title = &Apache::lonlocal::texthash(
       author => 'Creating users when an Author',
       course => 'Creating users when in a course',
       domain => 'Creating users when a Domain Coordinator',
    );
    return %context_title;
}

sub print_usermodification {
    my ($position,$dom,$settings,$rowtotal) = @_;
    my $numinrow = 4;
    my ($context,$datatable,$rowcount);
    if ($position eq 'top') {
        $rowcount = 0;
        $context = 'author'; 
        foreach my $role ('ca','aa') {
            $datatable .= &modifiable_userdata_row($context,$role,$settings,
                                                   $numinrow,$rowcount);
            $$rowtotal ++;
            $rowcount ++;
        }
    } elsif ($position eq 'middle') {
        $context = 'course';
        $rowcount = 0;
        foreach my $role ('st','ep','ta','in','cr') {
            $datatable .= &modifiable_userdata_row($context,$role,$settings,
                                                   $numinrow,$rowcount);
            $$rowtotal ++;
            $rowcount ++;
        }
    } elsif ($position eq 'bottom') {
        $context = 'selfcreate';
        my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
        $usertypes->{'default'} = $othertitle;
        if (ref($types) eq 'ARRAY') {
            push(@{$types},'default');
            $usertypes->{'default'} = $othertitle;
            foreach my $status (@{$types}) {
                $datatable .= &modifiable_userdata_row($context,$status,$settings,
                                                       $numinrow,$rowcount,$usertypes);
                $$rowtotal ++;
                $rowcount ++;
            }
        }
    }
    return $datatable;
}

sub print_defaults {
    my ($dom,$rowtotal) = @_;
    my @items = ('auth_def','auth_arg_def','lang_def','timezone_def',
                 'datelocale_def','portal_def');
    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
    my $titles = &defaults_titles($dom);
    my $rownum = 0;
    my ($datatable,$css_class);
    foreach my $item (@items) {
        if ($rownum%2) {
            $css_class = '';
        } else {
            $css_class = ' class="LC_odd_row" ';
        }
        $datatable .= '<tr'.$css_class.'>'.
                  '<td><span class="LC_nobreak">'.$titles->{$item}.
                  '</span></td><td class="LC_right_item">';
        if ($item eq 'auth_def') {
            my @authtypes = ('internal','krb4','krb5','localauth');
            my %shortauth = (
                             internal => 'int',
                             krb4 => 'krb4',
                             krb5 => 'krb5',
                             localauth  => 'loc'
                           );
            my %authnames = &authtype_names();
            foreach my $auth (@authtypes) {
                my $checked = ' ';
                if ($domdefaults{$item} eq $auth) {
                    $checked = ' checked="checked" ';
                }
                $datatable .= '<label><input type="radio" name="'.$item.
                              '" value="'.$auth.'"'.$checked.'/>'.
                              $authnames{$shortauth{$auth}}.'</label>&nbsp;&nbsp;';
            }
        } elsif ($item eq 'timezone_def') {
            my $includeempty = 1;
            $datatable .= &Apache::loncommon::select_timezone($item,$domdefaults{$item},undef,$includeempty);
        } elsif ($item eq 'datelocale_def') {
            my $includeempty = 1;
            $datatable .= &Apache::loncommon::select_datelocale($item,$domdefaults{$item},undef,$includeempty);
        } else {
            my $size;
            if ($item eq 'portal_def') {
                $size = ' size="25"';
            }
            $datatable .= '<input type="text" name="'.$item.'" value="'.
                          $domdefaults{$item}.'"'.$size.' />';
        }
        $datatable .= '</td></tr>';
        $rownum ++;
    }
    $$rowtotal += $rownum;
    return $datatable;
}

sub defaults_titles {
    my ($dom) = @_;
    my %titles = &Apache::lonlocal::texthash (
                   'auth_def'      => 'Default authentication type',
                   'auth_arg_def'  => 'Default authentication argument',
                   'lang_def'      => 'Default language',
                   'timezone_def'  => 'Default timezone',
                   'datelocale_def' => 'Default locale for dates',
                   'portal_def'     => 'Portal/Default URL',
                 );
    if ($dom) {
        my $uprimary_id = &Apache::lonnet::domain($dom,'primary');
        my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
        my $protocol = $Apache::lonnet::protocol{$uprimary_id};
        $protocol = 'http' if ($protocol ne 'https');
        if ($uint_dom) {
            $titles{'portal_def'} .= ' '.&mt('(for example: [_1])',$protocol.'://loncapa.'.
                                         $uint_dom);
        }
    }
    return (\%titles);
}

sub print_scantronformat {
    my ($r,$dom,$confname,$settings,$rowtotal) = @_;
    my $itemcount = 1;
    my ($datatable,$css_class,$scantronurl,$is_custom,%error,%scantronurls,
        %confhash);
    my $switchserver = &check_switchserver($dom,$confname);
    my %lt = &Apache::lonlocal::texthash (
                default => 'Default bubblesheet format file error',
                custom  => 'Custom bubblesheet format file error',
             );
    my %scantronfiles = (
        default => 'default.tab',
        custom => 'custom.tab',
    );
    foreach my $key (keys(%scantronfiles)) {
        $scantronurls{$key} = '/res/'.$dom.'/'.$confname.'/scantron/'
                              .$scantronfiles{$key};
    }
    my @defaultinfo = &Apache::lonnet::stat_file($scantronurls{'default'});
    if ((!@defaultinfo) || ($defaultinfo[0] eq 'no_such_dir')) {
        if (!$switchserver) {
            my $servadm = $r->dir_config('lonAdmEMail');
            my ($configuserok,$author_ok) = &config_check($dom,$confname,$servadm);
            if ($configuserok eq 'ok') {
                if ($author_ok eq 'ok') {
                    my %legacyfile = (
 default => $Apache::lonnet::perlvar{'lonTabDir'}.'/default_scantronformat.tab', 
 custom  => $Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab', 
                    );
                    my %md5chk;
                    foreach my $type (keys(%legacyfile)) {
                        ($md5chk{$type}) = split(/ /,`md5sum $legacyfile{$type}`);
                        chomp($md5chk{$type});
                    }
                    if ($md5chk{'default'} ne $md5chk{'custom'}) {
                        foreach my $type (keys(%legacyfile)) {
                            ($scantronurls{$type},my $error) = 
                                &legacy_scantronformat($r,$dom,$confname,
                                                 $type,$legacyfile{$type},
                                                 $scantronurls{$type},
                                                 $scantronfiles{$type});
                            if ($error ne '') {
                                $error{$type} = $error;
                            }
                        }
                        if (keys(%error) == 0) {
                            $is_custom = 1;
                            $confhash{'scantron'}{'scantronformat'} = 
                                $scantronurls{'custom'};
                            my $putresult = 
                                &Apache::lonnet::put_dom('configuration',
                                                         \%confhash,$dom);
                            if ($putresult ne 'ok') {
                                $error{'custom'} = 
                                    '<span class="LC_error">'.
                                    &mt('An error occurred updating the domain configuration: [_1]',$putresult).'</span>';
                            }
                        }
                    } else {
                        ($scantronurls{'default'},my $error) =
                            &legacy_scantronformat($r,$dom,$confname,
                                          'default',$legacyfile{'default'},
                                          $scantronurls{'default'},
                                          $scantronfiles{'default'});
                        if ($error eq '') {
                            $confhash{'scantron'}{'scantronformat'} = ''; 
                            my $putresult =
                                &Apache::lonnet::put_dom('configuration',
                                                         \%confhash,$dom);
                            if ($putresult ne 'ok') {
                                $error{'default'} =
                                    '<span class="LC_error">'.
                                    &mt('An error occurred updating the domain configuration: [_1]',$putresult).'</span>';
                            }
                        } else {
                            $error{'default'} = $error;
                        }
                    }
                }
            }
        } else {
            $error{'default'} = &mt("Unable to copy default bubblesheet formatfile to domain's RES space: [_1]",$switchserver);
        }
    }
    if (ref($settings) eq 'HASH') {
        if ($settings->{'scantronformat'} eq "/res/$dom/$confname/scantron/custom.tab") {
            my @info = &Apache::lonnet::stat_file($settings->{'scantronformat'});
            if ((!@info) || ($info[0] eq 'no_such_dir')) {
                $scantronurl = '';
            } else {
                $scantronurl = $settings->{'scantronformat'};
            }
            $is_custom = 1;
        } else {
            $scantronurl = $scantronurls{'default'};
        }
    } else {
        if ($is_custom) {
            $scantronurl = $scantronurls{'custom'};
        } else {
            $scantronurl = $scantronurls{'default'};
        }
    }
    $css_class = $itemcount%2?' class="LC_odd_row"':'';
    $datatable .= '<tr'.$css_class.'>';
    if (!$is_custom) {
        $datatable .= '<td>'.&mt('Default in use:').'<br />'.
                      '<span class="LC_nobreak">';
        if ($scantronurl) {
            $datatable .= '<a href="'.$scantronurl.'" target="_blank">'.
                          &mt('Default bubblesheet format file').'</a>';
        } else {
            $datatable = &mt('File unavailable for display');
        }
        $datatable .= '</span></td>';
        if (keys(%error) == 0) { 
            $datatable .= '<td valign="bottom">';
            if (!$switchserver) {
                $datatable .= &mt('Upload:').'<br />';
            }
        } else {
            my $errorstr;
            foreach my $key (sort(keys(%error))) {
                $errorstr .= $lt{$key}.': '.$error{$key}.'<br />';
            }
            $datatable .= '<td>'.$errorstr;
        }
    } else {
        if (keys(%error) > 0) {
            my $errorstr;
            foreach my $key (sort(keys(%error))) {
                $errorstr .= $lt{$key}.': '.$error{$key}.'<br />';
            } 
            $datatable .= '<td>'.$errorstr.'</td><td>&nbsp;';
        } elsif ($scantronurl) {
            $datatable .= '<td><span class="LC_nobreak">'.
                          '<a href="'.$scantronurl.'" target="_blank">'.
                          &mt('Custom bubblesheet format file').'</a><label>'.
                          '<input type="checkbox" name="scantronformat_del"'.
                          '" value="1" />'.&mt('Delete?').'</label></span></td>'.
                          '<td><span class="LC_nobreak">&nbsp;'.
                          &mt('Replace:').'</span><br />';
        }
    }
    if (keys(%error) == 0) {
        if ($switchserver) {
            $datatable .= &mt('Upload to library server: [_1]',$switchserver);
        } else {
            $datatable .='<span class="LC_nobreak">&nbsp;'.
                         '<input type="file" name="scantronformat" /></span>';
        }
    }
    $datatable .= '</td></tr>';
    $$rowtotal ++;
    return $datatable;
}

sub legacy_scantronformat {
    my ($r,$dom,$confname,$file,$legacyfile,$newurl,$newfile) = @_;
    my ($url,$error);
    my @statinfo = &Apache::lonnet::stat_file($newurl);
    if ((!@statinfo) || ($statinfo[0] eq 'no_such_dir')) {
        (my $result,$url) =
            &publishlogo($r,'copy',$legacyfile,$dom,$confname,'scantron',
                         '','',$newfile);
        if ($result ne 'ok') {
            $error = &mt("An error occurred publishing the [_1] bubblesheet format file in RES space. Error was: [_2].",$newfile,$result);
        }
    }
    return ($url,$error);
}

sub print_coursecategories {
    my ($position,$dom,$hdritem,$settings,$rowtotal) = @_;
    my $datatable;
    if ($position eq 'top') {
        my $toggle_cats_crs = ' ';
        my $toggle_cats_dom = ' checked="checked" ';
        my $can_cat_crs = ' ';
        my $can_cat_dom = ' checked="checked" ';
        my $toggle_catscomm_comm = ' ';
        my $toggle_catscomm_dom = ' checked="checked" ';
        my $can_catcomm_comm = ' ';
        my $can_catcomm_dom = ' checked="checked" ';

        if (ref($settings) eq 'HASH') {
            if ($settings->{'togglecats'} eq 'crs') {
                $toggle_cats_crs = $toggle_cats_dom;
                $toggle_cats_dom = ' ';
            }
            if ($settings->{'categorize'} eq 'crs') {
                $can_cat_crs = $can_cat_dom;
                $can_cat_dom = ' ';
            }
            if ($settings->{'togglecatscomm'} eq 'comm') {
                $toggle_catscomm_comm = $toggle_catscomm_dom;
                $toggle_catscomm_dom = ' ';
            }
            if ($settings->{'categorizecomm'} eq 'comm') {
                $can_catcomm_comm = $can_catcomm_dom;
                $can_catcomm_dom = ' ';
            }
        }
        my %title = &Apache::lonlocal::texthash (
                     togglecats     => 'Show/Hide a course in catalog',
                     togglecatscomm => 'Show/Hide a community in catalog',
                     categorize     => 'Assign a category to a course',
                     categorizecomm => 'Assign a category to a community',
                    );
        my %level = &Apache::lonlocal::texthash (
                     dom  => 'Set in Domain',
                     crs  => 'Set in Course',
                     comm => 'Set in Community',
                    );
        $datatable = '<tr class="LC_odd_row">'.
                  '<td>'.$title{'togglecats'}.'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
                  '<input type="radio" name="togglecats"'.
                  $toggle_cats_dom.' value="dom" />'.$level{'dom'}.'</label>&nbsp;'.
                  '<label><input type="radio" name="togglecats"'.
                  $toggle_cats_crs.' value="crs" />'.$level{'crs'}.'</label></span></td>'.
                  '</tr><tr>'.
                  '<td>'.$title{'categorize'}.'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak">'.
                  '<label><input type="radio" name="categorize"'.
                  $can_cat_dom.' value="dom" />'.$level{'dom'}.'</label>&nbsp;'.
                  '<label><input type="radio" name="categorize"'.
                  $can_cat_crs.'value="crs" />'.$level{'crs'}.'</label></span></td>'.
                  '</tr><tr class="LC_odd_row">'.
                  '<td>'.$title{'togglecatscomm'}.'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
                  '<input type="radio" name="togglecatscomm"'.
                  $toggle_catscomm_dom.' value="dom" />'.$level{'dom'}.'</label>&nbsp;'.
                  '<label><input type="radio" name="togglecatscomm"'.
                  $toggle_catscomm_comm.' value="comm" />'.$level{'comm'}.'</label></span></td>'.
                  '</tr><tr>'.
                  '<td>'.$title{'categorizecomm'}.'</td>'.
                  '<td class="LC_right_item"><span class="LC_nobreak">'.
                  '<label><input type="radio" name="categorizecomm"'.
                  $can_catcomm_dom.' value="dom" />'.$level{'dom'}.'</label>&nbsp;'.
                  '<label><input type="radio" name="categorizecomm"'.
                  $can_catcomm_comm.'value="comm" />'.$level{'comm'}.'</label></span></td>'.
                  '</tr>';
        $$rowtotal += 4;
    } else {
        my $css_class;
        my $itemcount = 1;
        my $cathash; 
        if (ref($settings) eq 'HASH') {
            $cathash = $settings->{'cats'};
        }
        if (ref($cathash) eq 'HASH') {
            my (@cats,@trails,%allitems,%idx,@jsarray);
            &Apache::loncommon::extract_categories($cathash,\@cats,\@trails,
                                                   \%allitems,\%idx,\@jsarray);
            my $maxdepth = scalar(@cats);
            my $colattrib = '';
            if ($maxdepth > 2) {
                $colattrib = ' colspan="2" ';
            }
            my @path;
            if (@cats > 0) {
                if (ref($cats[0]) eq 'ARRAY') {
                    my $numtop = @{$cats[0]};
                    my $maxnum = $numtop;
                    my %default_names = (
                          instcode    => &mt('Official courses'),
                          communities => &mt('Communities'),
                    );

                    if ((!grep(/^instcode$/,@{$cats[0]})) || 
                        ($cathash->{'instcode::0'} eq '') ||
                        (!grep(/^communities$/,@{$cats[0]})) || 
                        ($cathash->{'communities::0'} eq '')) {
                        $maxnum ++;
                    }
                    my $lastidx;
                    for (my $i=0; $i<$numtop; $i++) {
                        my $parent = $cats[0][$i];
                        $css_class = $itemcount%2?' class="LC_odd_row"':'';
                        my $item = &escape($parent).'::0';
                        my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','$item','$idx{$item}'".');"';
                        $lastidx = $idx{$item};
                        $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak">'
                                      .'<select name="'.$item.'"'.$chgstr.'>';
                        for (my $k=0; $k<=$maxnum; $k++) {
                            my $vpos = $k+1;
                            my $selstr;
                            if ($k == $i) {
                                $selstr = ' selected="selected" ';
                            }
                            $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
                        }
                        $datatable .= '</select></td><td>';
                        if ($parent eq 'instcode' || $parent eq 'communities') {
                            $datatable .=  '<span class="LC_nobreak">'
                                           .$default_names{$parent}.'</span>';
                            if ($parent eq 'instcode') {
                                $datatable .= '<br /><span class="LC_nobreak">('
                                              .&mt('with institutional codes')
                                              .')</span></td><td'.$colattrib.'>';
                            } else {
                                $datatable .= '<table><tr><td>';
                            }
                            $datatable .= '<span class="LC_nobreak">'
                                          .'<label><input type="radio" name="'
                                          .$parent.'" value="1" checked="checked" />'
                                          .&mt('Display').'</label>';
                            if ($parent eq 'instcode') {
                                $datatable .= '&nbsp;';
                            } else {
                                $datatable .= '</span></td></tr><tr><td>'
                                              .'<span class="LC_nobreak">';
                            }
                            $datatable .= '<label><input type="radio" name="'
                                          .$parent.'" value="0" />'
                                          .&mt('Do not display').'</label></span>';
                            if ($parent eq 'communities') {
                                $datatable .= '</td></tr></table>';
                            }
                            $datatable .= '</td>';
                        } else {
                            $datatable .= $parent
                                          .'&nbsp;<label><input type="checkbox" name="deletecategory" '
                                          .'value="'.$item.'" />'.&mt('Delete').'</label></span></td>';
                        }
                        my $depth = 1;
                        push(@path,$parent);
                        $datatable .= &build_category_rows($itemcount,\@cats,$depth,$parent,\@path,\%idx);
                        pop(@path);
                        $datatable .= '</tr><tr><td colspan="'.$maxdepth.'" class="LC_row_separator"></td></tr>';
                        $itemcount ++;
                    }
                    $css_class = $itemcount%2?' class="LC_odd_row"':'';
                    my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','addcategory_pos','$lastidx'".');"';
                    $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak"><select name="addcategory_pos"'.$chgstr.'>';
                    for (my $k=0; $k<=$maxnum; $k++) {
                        my $vpos = $k+1;
                        my $selstr;
                        if ($k == $numtop) {
                            $selstr = ' selected="selected" ';
                        }
                        $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
                    }
                    $datatable .= '</select></span></td><td colspan="2">'.&mt('Add category:').'&nbsp;'
                                  .'<input type="text" size="20" name="addcategory_name" value="" /></td>'
                                  .'</tr>'."\n";
                    $itemcount ++;
                    foreach my $default ('instcode','communities') {
                        if ((!grep(/^\Q$default\E$/,@{$cats[0]})) || ($cathash->{$default.'::0'} eq '')) {
                            $css_class = $itemcount%2?' class="LC_odd_row"':'';
                            my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','$default"."_pos','$lastidx'".');"';
                            $datatable .= '<tr><td colspan="'.$maxdepth.'" class="LC_row_separator"></td></tr><tr '.$css_class.'><td>'.
                                          '<span class="LC_nobreak"><select name="'.$default.'_pos"'.$chgstr.'>';
                            for (my $k=0; $k<=$maxnum; $k++) {
                                my $vpos = $k+1;
                                my $selstr;
                                if ($k == $maxnum) {
                                    $selstr = ' selected="selected" ';
                                }
                                $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
                            }
                            $datatable .= '</select></span></td>'.
                                          '<td><span class="LC_nobreak">'.
                                          $default_names{$default}.'</span>';
                            if ($default eq 'instcode') {
                                $datatable .= '<br /><span class="LC_nobreak">(' 
                                              .&mt('with institutional codes').')</span>';
                            }
                            $datatable .= '</td>'
                                          .'<td><span class="LC_nobreak"><label><input type="radio" name="'.$default.'" value="1" />'
                                          .&mt('Display').'</label>&nbsp;'
                                          .'<label><input type="radio" name="'.$default.'" value="0" checked="checked"/>'
                                          .&mt('Do not display').'</label></span></td></tr>';
                        }
                    }
                }
            } else {
                $datatable .= &initialize_categories($itemcount);
            }
        } else {
            $datatable .= '<td class="LC_right_item">'.$hdritem->{'header'}->[0]->{'col2'}.'</td>'
                          .&initialize_categories($itemcount);
        }
        $$rowtotal += $itemcount;
    }
    return $datatable;
}

sub print_serverstatuses {
    my ($dom,$settings,$rowtotal) = @_;
    my $datatable;
    my @pages = &serverstatus_pages();
    my (%namedaccess,%machineaccess);
    foreach my $type (@pages) {
        $namedaccess{$type} = '';
        $machineaccess{$type}= '';
    }
    if (ref($settings) eq 'HASH') {
        foreach my $type (@pages) {
            if (exists($settings->{$type})) {
                if (ref($settings->{$type}) eq 'HASH') {
                    foreach my $key (keys(%{$settings->{$type}})) {
                        if ($key eq 'namedusers') {
                            $namedaccess{$type} = $settings->{$type}->{$key};
                        } elsif ($key eq 'machines') {
                            $machineaccess{$type} = $settings->{$type}->{$key};
                        }
                    }
                }
            }
        }
    }
    my $titles= &LONCAPA::lonauthcgi::serverstatus_titles();
    my $rownum = 0;
    my $css_class;
    foreach my $type (@pages) {
        $rownum ++;
        $css_class = $rownum%2?' class="LC_odd_row"':'';
        $datatable .= '<tr'.$css_class.'>'.
                      '<td><span class="LC_nobreak">'.
                      $titles->{$type}.'</span></td>'.
                      '<td class="LC_left_item">'.
                      '<input type="text" name="'.$type.'_namedusers" '.
                      'value="'.$namedaccess{$type}.'" size="30" /></td>'.
                      '<td class="LC_right_item">'.
                      '<span class="LC_nobreak">'.
                      '<input type="text" name="'.$type.'_machines" '.
                      'value="'.$machineaccess{$type}.'" size="10" />'.
                      '</td></tr>'."\n";
    }
    $$rowtotal += $rownum;
    return $datatable;
}

sub serverstatus_pages {
    return ('userstatus','lonstatus','loncron','server-status','codeversions',
            'clusterstatus','metadata_keywords','metadata_harvest',
            'takeoffline','takeonline','showenv','toggledebug');
}

sub coursecategories_javascript {
    my ($settings) = @_;
    my ($output,$jstext,$cathash);
    if (ref($settings) eq 'HASH') {
        $cathash = $settings->{'cats'};
    }
    if (ref($cathash) eq 'HASH') {
        my (@cats,@jsarray,%idx);
        &Apache::loncommon::gather_categories($cathash,\@cats,\%idx,\@jsarray);
        if (@jsarray > 0) {
            $jstext = '    var categories = Array('.scalar(@jsarray).');'."\n";
            for (my $i=0; $i<@jsarray; $i++) {
                if (ref($jsarray[$i]) eq 'ARRAY') {
                    my $catstr = join('","',@{$jsarray[$i]});
                    $jstext .= '    categories['.$i.'] = Array("'.$catstr.'");'."\n";
                }
            }
        }
    } else {
        $jstext  = '    var categories = Array(1);'."\n".
                   '    categories[0] = Array("instcode_pos");'."\n"; 
    }
    my $instcode_reserved = &mt('The name: "instcode" is a reserved category');
    my $communities_reserved = &mt('The name: "communities" is a reserved category');
    my $choose_again = '\\n'.&mt('Please use a different name for the new top level category'); 
    $output = <<"ENDSCRIPT";
<script type="text/javascript">
// <![CDATA[
function reorderCats(form,parent,item,idx) {
    var changedVal;
$jstext
    var newpos = 'addcategory_pos';
    var current = new Array;
    if (parent == '') {
        var has_instcode = 0;
        var maxtop = categories[idx].length;
        for (var j=0; j<maxtop; j++) {
            if (categories[idx][j] == 'instcode::0') {
                has_instcode == 1;
            }
        }
        if (has_instcode == 0) {
            categories[idx][maxtop] = 'instcode_pos';
        }
    } else {
        newpos += '_'+parent;
    }
    var maxh = 1 + categories[idx].length;
    var current = new Array;
    var newitemVal = form.elements[newpos].options[form.elements[newpos].selectedIndex].value;
    if (item == newpos) {
        changedVal = newitemVal;
    } else {
        changedVal = form.elements[item].options[form.elements[item].selectedIndex].value;
        current[newitemVal] = newpos;
    }
    for (var i=0; i<categories[idx].length; i++) {
        var elementName = categories[idx][i];
        if (elementName != item) {
            if (form.elements[elementName]) {
                var currVal = form.elements[elementName].options[form.elements[elementName].selectedIndex].value;
                current[currVal] = elementName;
            }
        }
    }
    var oldVal;
    for (var j=0; j<maxh; j++) {
        if (current[j] == undefined) {
            oldVal = j;
        }
    }
    if (oldVal < changedVal) {
        for (var k=oldVal+1; k<=changedVal ; k++) {
           var elementName = current[k];
           form.elements[elementName].selectedIndex = form.elements[elementName].selectedIndex - 1;
        }
    } else {
        for (var k=changedVal; k<oldVal; k++) {
            var elementName = current[k];
            form.elements[elementName].selectedIndex = form.elements[elementName].selectedIndex + 1;
        }
    }
    return;
}

function categoryCheck(form) {
    if (form.elements['addcategory_name'].value == 'instcode') {
        alert('$instcode_reserved\\n$choose_again');
        return false;
    }
    if (form.elements['addcategory_name'].value == 'communities') {
        alert('$communities_reserved\\n$choose_again');
        return false;
    }
    return true;
}

// ]]>
</script>

ENDSCRIPT
    return $output;
}

sub initialize_categories {
    my ($itemcount) = @_;
    my ($datatable,$css_class,$chgstr);
    my %default_names = (
                      instcode    => 'Official courses (with institutional codes)',
                      communities => 'Communities',
                        );
    my $select0 = ' selected="selected"';
    my $select1 = '';
    foreach my $default ('instcode','communities') {
        $css_class = $itemcount%2?' class="LC_odd_row"':'';
        $chgstr = ' onchange="javascript:reorderCats(this.form,'."'',$default"."_pos','0'".');"';
        if ($default eq 'communities') {
            $select1 = $select0;
            $select0 = '';
        }
        $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak">'
                     .'<select name="'.$default.'_pos">'
                     .'<option value="0"'.$select0.'>1</option>'
                     .'<option value="1"'.$select1.'>2</option>'
                     .'<option value="2">3</option></select>&nbsp;'
                     .$default_names{$default}
                     .'</span></td><td><span class="LC_nobreak">'
                     .'<label><input type="radio" name="'.$default.'" value="1" checked="checked" />'
                     .&mt('Display').'</label>&nbsp;<label>'
                     .'<input type="radio" name="'.$default.'" value="0" />'.&mt('Do not display')
                 .'</label></span></td></tr>';
        $itemcount ++;
    }
    $css_class = $itemcount%2?' class="LC_odd_row"':'';
    $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','addcategory_pos','0'".');"';
    $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak">'
                  .'<select name="addcategory_pos"'.$chgstr.'>'
                  .'<option value="0">1</option>'
                  .'<option value="1">2</option>'
                  .'<option value="2" selected="selected">3</option></select>&nbsp;'
                  .&mt('Add category').'</td><td>'.&mt('Name:')
                  .'&nbsp;<input type="text" size="20" name="addcategory_name" value="" /></td></tr>';
    return $datatable;
}

sub build_category_rows {
    my ($itemcount,$cats,$depth,$parent,$path,$idx) = @_;
    my ($text,$name,$item,$chgstr);
    if (ref($cats) eq 'ARRAY') {
        my $maxdepth = scalar(@{$cats});
        if (ref($cats->[$depth]) eq 'HASH') {
            if (ref($cats->[$depth]{$parent}) eq 'ARRAY') {
                my $numchildren = @{$cats->[$depth]{$parent}};
                my $css_class = $itemcount%2?' class="LC_odd_row"':'';
                $text .= '<td><table class="LC_datatable">';
                my ($idxnum,$parent_name,$parent_item);
                my $higher = $depth - 1;
                if ($higher == 0) {
                    $parent_name = &escape($parent).'::'.$higher;
                } else {
                    if (ref($path) eq 'ARRAY') {
                        $parent_name = &escape($parent).':'.&escape($path->[-2]).':'.$higher;
                    }
                }
                $parent_item = 'addcategory_pos_'.$parent_name;
                for (my $j=0; $j<=$numchildren; $j++) {
                    if ($j < $numchildren) {
                        $name = $cats->[$depth]{$parent}[$j];
                        $item = &escape($name).':'.&escape($parent).':'.$depth;
                        $idxnum = $idx->{$item};
                    } else {
                        $name = $parent_name;
                        $item = $parent_item;
                    }
                    $chgstr = ' onchange="javascript:reorderCats(this.form,'."'$parent_name','$item','$idxnum'".');"';
                    $text .= '<tr '.$css_class.'><td><span class="LC_nobreak"><select name="'.$item.'"'.$chgstr.'>';
                    for (my $i=0; $i<=$numchildren; $i++) {
                        my $vpos = $i+1;
                        my $selstr;
                        if ($j == $i) {
                            $selstr = ' selected="selected" ';
                        }
                        $text .= '<option value="'.$i.'"'.$selstr.'>'.$vpos.'</option>';
                    }
                    $text .= '</select>&nbsp;';
                    if ($j < $numchildren) {
                        my $deeper = $depth+1;
                        $text .= $name.'&nbsp;'
                                 .'<label><input type="checkbox" name="deletecategory" value="'
                                 .$item.'" />'.&mt('Delete').'</label></span></td><td>';
                        if(ref($path) eq 'ARRAY') {
                            push(@{$path},$name);
                            $text .= &build_category_rows($itemcount,$cats,$deeper,$name,$path,$idx);
                            pop(@{$path});
                        }
                    } else {
                        $text .= &mt('Add subcategory:').'&nbsp;</span><input type="textbox" size="20" name="addcategory_name_';
                        if ($j == $numchildren) {
                            $text .= $name;
                        } else {
                            $text .= $item;
                        }
                        $text .= '" value="" />';
                    }
                    $text .= '</td></tr>';
                }
                $text .= '</table></td>';
            } else {
                my $higher = $depth-1;
                if ($higher == 0) {
                    $name = &escape($parent).'::'.$higher;
                } else {
                    if (ref($path) eq 'ARRAY') {
                        $name = &escape($parent).':'.&escape($path->[-2]).':'.$higher;
                    }
                }
                my $colspan;
                if ($parent ne 'instcode') {
                    $colspan = $maxdepth - $depth - 1;
                    $text .= '<td colspan="'.$colspan.'">'.&mt('Add subcategory:').'<input type="textbox" size="20" name="subcat_'.$name.'" value="" /></td>';
                }
            }
        }
    }
    return $text;
}

sub modifiable_userdata_row {
    my ($context,$role,$settings,$numinrow,$rowcount,$usertypes) = @_;
    my $rolename;
    if ($context eq 'selfcreate') {
        if (ref($usertypes) eq 'HASH') {
            $rolename = $usertypes->{$role};
        } else {
            $rolename = $role;
        }
    } else {
        if ($role eq 'cr') {
            $rolename = &mt('Custom role');
        } else {
            $rolename = &Apache::lonnet::plaintext($role);
        }
    }
    my @fields = ('lastname','firstname','middlename','generation',
                  'permanentemail','id');
    my %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
    my $output;
    my $css_class = $rowcount%2?' class="LC_odd_row"':'';
    $output = '<tr '.$css_class.'>'.
              '<td><span class="LC_nobreak">'.$rolename.'</span></td>'.
              '<td class="LC_left_item" colspan="2"><table>';
    my $rem;
    my %checks;
    if (ref($settings) eq 'HASH') {
        if (ref($settings->{$context}) eq 'HASH') {
            if (ref($settings->{$context}->{$role}) eq 'HASH') {
                foreach my $field (@fields) {
                    if ($settings->{$context}->{$role}->{$field}) {
                        $checks{$field} = ' checked="checked" ';
                    }
                }
            }
        }
    }
    for (my $i=0; $i<@fields; $i++) {
        my $rem = $i%($numinrow);
        if ($rem == 0) {
            if ($i > 0) {
                $output .= '</tr>';
            }
            $output .= '<tr>';
        }
        my $check = ' ';
        if (exists($checks{$fields[$i]})) {
            $check = $checks{$fields[$i]}
        } else {
            if ($role eq 'st') {
                if (ref($settings) ne 'HASH') {
                    $check = ' checked="checked" '; 
                }
            }
        }
        $output .= '<td class="LC_left_item">'.
                   '<span class="LC_nobreak"><label>'.
                   '<input type="checkbox" name="canmodify_'.$role.'" '.
                   'value="'.$fields[$i].'"'.$check.'/>'.$fieldtitles{$fields[$i]}.
                   '</label></span></td>';
        $rem = @fields%($numinrow);
    }
    my $colsleft = $numinrow - $rem;
    if ($colsleft > 1 ) {
        $output .= '<td colspan="'.$colsleft.'" class="LC_left_item">'.
                   '&nbsp;</td>';
    } elsif ($colsleft == 1) {
        $output .= '<td class="LC_left_item">&nbsp;</td>';
    }
    $output .= '</tr></table></td></tr>';
    return $output;
}

sub insttypes_row {
    my ($settings,$types,$usertypes,$dom,$numinrow,$othertitle,$context) = @_;
    my %lt = &Apache::lonlocal::texthash (
                      cansearch => 'Users allowed to search',
                      statustocreate => 'Institutional affiliation(s) able to create own account (login/SSO)',
                      lockablenames => 'User preference to lock name',
             );
    my $showdom;
    if ($context eq 'cansearch') {
        $showdom = ' ('.$dom.')';
    }
    my $output =  '<tr class="LC_odd_row">'.
                  '<td>'.$lt{$context}.$showdom.
                  '</td><td class="LC_left_item" colspan="2"><table>';
    my $rem;
    if (ref($types) eq 'ARRAY') {
        for (my $i=0; $i<@{$types}; $i++) {
            if (defined($usertypes->{$types->[$i]})) {
                my $rem = $i%($numinrow);
                if ($rem == 0) {
                    if ($i > 0) {
                        $output .= '</tr>';
                    }
                    $output .= '<tr>';
                }
                my $check = ' ';
                if (ref($settings) eq 'HASH') {
                    if (ref($settings->{$context}) eq 'ARRAY') {
                        if (grep(/^\Q$types->[$i]\E$/,@{$settings->{$context}})) {
                            $check = ' checked="checked" ';
                        }
                    } elsif ($context eq 'statustocreate') {
                        $check = ' checked="checked" ';
                    }
                }
                $output .= '<td class="LC_left_item">'.
                           '<span class="LC_nobreak"><label>'.
                           '<input type="checkbox" name="'.$context.'" '.
                           'value="'.$types->[$i].'"'.$check.'/>'.
                           $usertypes->{$types->[$i]}.'</label></span></td>';
            }
        }
        $rem = @{$types}%($numinrow);
    }
    my $colsleft = $numinrow - $rem;
    if (($rem == 0) && (@{$types} > 0)) {
        $output .= '<tr>';
    }
    if ($colsleft > 1) {
        $output .= '<td colspan="'.$colsleft.'" class="LC_left_item">';
    } else {
        $output .= '<td class="LC_left_item">';
    }
    my $defcheck = ' ';
    if (ref($settings) eq 'HASH') {  
        if (ref($settings->{$context}) eq 'ARRAY') {
            if (grep(/^default$/,@{$settings->{$context}})) {
                $defcheck = ' checked="checked" ';
            }
        } elsif ($context eq 'statustocreate') {
            $defcheck = ' checked="checked" ';
        }
    }
    $output .= '<span class="LC_nobreak"><label>'.
               '<input type="checkbox" name="'.$context.'" '.
               'value="default"'.$defcheck.'/>'.
               $othertitle.'</label></span></td>'.
               '</tr></table></td></tr>';
    return $output;
}

sub sorted_searchtitles {
    my %searchtitles = &Apache::lonlocal::texthash(
                         'uname' => 'username',
                         'lastname' => 'last name',
                         'lastfirst' => 'last name, first name',
                     );
    my @titleorder = ('uname','lastname','lastfirst');
    return (\%searchtitles,\@titleorder);
}

sub sorted_searchtypes {
    my %srchtypes_desc = (
                           exact    => 'is exact match',
                           contains => 'contains ..',
                           begins   => 'begins with ..',
                         );
    my @srchtypeorder = ('exact','begins','contains');
    return (\%srchtypes_desc,\@srchtypeorder);
}

sub usertype_update_row {
    my ($settings,$usertypes,$fieldtitles,$fields,$types,$rownums) = @_;
    my $datatable;
    my $numinrow = 4;
    foreach my $type (@{$types}) {
        if (defined($usertypes->{$type})) {
            $$rownums ++;
            my $css_class = $$rownums%2?' class="LC_odd_row"':'';
            $datatable .= '<tr'.$css_class.'><td>'.$usertypes->{$type}.
                          '</td><td class="LC_left_item"><table>';
            for (my $i=0; $i<@{$fields}; $i++) {
                my $rem = $i%($numinrow);
                if ($rem == 0) {
                    if ($i > 0) {
                        $datatable .= '</tr>';
                    }
                    $datatable .= '<tr>';
                }
                my $check = ' ';
                if (ref($settings) eq 'HASH') {
                    if (ref($settings->{'fields'}) eq 'HASH') {
                        if (ref($settings->{'fields'}{$type}) eq 'ARRAY') {
                            if (grep(/^\Q$fields->[$i]\E$/,@{$settings->{'fields'}{$type}})) {
                                $check = ' checked="checked" ';
                            }
                        }
                    }
                }

                if ($i == @{$fields}-1) {
                    my $colsleft = $numinrow - $rem;
                    if ($colsleft > 1) {
                        $datatable .= '<td colspan="'.$colsleft.'">';
                    } else {
                        $datatable .= '<td>';
                    }
                } else {
                    $datatable .= '<td>';
                }
                $datatable .= '<span class="LC_nobreak"><label>'.
                              '<input type="checkbox" name="updateable_'.$type.
                              '_'.$fields->[$i].'" value="1"'.$check.'/>'.
                              $fieldtitles->{$fields->[$i]}.'</label></span></td>';
            }
            $datatable .= '</tr></table></td></tr>';
        }
    }
    return $datatable;
}

sub modify_login {
    my ($r,$dom,$confname,%domconfig) = @_;
    my ($resulttext,$errors,$colchgtext,%changes,%colchanges);
    my %title = ( coursecatalog => 'Display course catalog',
                  adminmail => 'Display administrator E-mail address',
                  newuser => 'Link for visitors to create a user account',
                  loginheader => 'Log-in box header');
    my @offon = ('off','on');
    my %curr_loginvia;
    if (ref($domconfig{login}) eq 'HASH') {
        if (ref($domconfig{login}{loginvia}) eq 'HASH') {
            foreach my $lonhost (keys(%{$domconfig{login}{loginvia}})) {
                $curr_loginvia{$lonhost} = $domconfig{login}{loginvia}{$lonhost};
            }
        }
    }
    my %loginhash;
    ($errors,%colchanges) = &modify_colors($r,$dom,$confname,['login'],
                                           \%domconfig,\%loginhash);
    my @toggles = ('coursecatalog','adminmail','newuser');
    foreach my $item (@toggles) {
        $loginhash{login}{$item} = $env{'form.'.$item};
    }
    $loginhash{login}{loginheader} = $env{'form.loginheader'};
    if (ref($colchanges{'login'}) eq 'HASH') {  
        $colchgtext = &display_colorchgs($dom,\%colchanges,['login'],
                                         \%loginhash);
    }

    my %servers = &dom_servers($dom);
    my @loginvia_attribs = ('serverpath','custompath','exempt');
    if (keys(%servers) > 1) {
        foreach my $lonhost (keys(%servers)) {
            next if ($env{'form.'.$lonhost.'_server'} eq $lonhost);
            if (ref($curr_loginvia{$lonhost}) eq 'HASH') {
                if ($env{'form.'.$lonhost.'_server'} eq $curr_loginvia{$lonhost}{'server'}) {
                    $loginhash{login}{loginvia}{$lonhost}{'server'} = $curr_loginvia{$lonhost}{'server'};
                } elsif ($curr_loginvia{$lonhost}{'server'} ne '') {
                    if (defined($servers{$env{'form.'.$lonhost.'_server'}})) {
                        $loginhash{login}{loginvia}{$lonhost}{'server'} = $env{'form.'.$lonhost.'_server'};
                        $changes{'loginvia'}{$lonhost} = 1;
                    } else {
                        $loginhash{login}{loginvia}{$lonhost}{'server'} = '';
                        $changes{'loginvia'}{$lonhost} = 1;
                    }
                } else {
                    if (defined($servers{$env{'form.'.$lonhost.'_server'}})) {
                        $loginhash{login}{loginvia}{$lonhost}{'server'} = $env{'form.'.$lonhost.'_server'};
                        $changes{'loginvia'}{$lonhost} = 1;
                    }
                }
                if ($loginhash{login}{loginvia}{$lonhost}{'server'} eq '') {
                    foreach my $item (@loginvia_attribs) {
                        $loginhash{login}{loginvia}{$lonhost}{$item} = '';
                    }
                } else {
                    foreach my $item (@loginvia_attribs) {
                        my $new = $env{'form.'.$lonhost.'_'.$item};
                        if (($item eq 'serverpath') && ($new eq 'custom')) {
                            $env{'form.'.$lonhost.'_custompath'} =~ s/\s+//g;
                            if ($env{'form.'.$lonhost.'_custompath'} eq '') {
                                $new = '/';
                            }
                        }
                        if (($item eq 'custompath') && 
                            ($env{'form.'.$lonhost.'_serverpath'} ne 'custom')) {
                            $new = '';
                        }
                        if ($new ne $curr_loginvia{$lonhost}{$item}) {
                            $changes{'loginvia'}{$lonhost} = 1;
                        }
                        if ($item eq 'exempt') {
                            $new =~ s/^\s+//;
                            $new =~ s/\s+$//;
                            my @poss_ips = split(/\s*[,:]\s*/,$new);
                            my @okips;
                            foreach my $ip (@poss_ips) {
                                if ($ip =~ /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/) {
                                    if (($1 <= 255) && ($2 <= 255) && ($3 <= 255) && ($4 <= 255)) {
                                        push(@okips,$ip); 
                                    }
                                }
                            }
                            if (@okips > 0) {
                                $new = join(',',@okips); 
                            } else {
                                $new = ''; 
                            }
                        }

                        $loginhash{login}{loginvia}{$lonhost}{$item} = $new;
                    }
                }
            } else {
                if (defined($servers{$env{'form.'.$lonhost.'_server'}})) {
                    $loginhash{login}{loginvia}{$lonhost}{'server'} = $env{'form.'.$lonhost.'_server'};
                    $changes{'loginvia'}{$lonhost} = 1;
                    foreach my $item (@loginvia_attribs) {
                        my $new = $env{'form.'.$lonhost.'_'.$item};
                        if (($item eq 'serverpath') && ($new eq 'custom')) {
                            if ($env{'form.'.$lonhost.'_custompath'} eq '') {
                                $new = '/';
                            }
                        }
                        if (($item eq 'custompath') && 
                            ($env{'form.'.$lonhost.'_serverpath'} ne 'custom')) {
                            $new = '';
                        }
                        $loginhash{login}{loginvia}{$lonhost}{$item} = $new;
                    }
                }
            }
        }
    }

    my $putresult = &Apache::lonnet::put_dom('configuration',\%loginhash,
                                             $dom);
    if ($putresult eq 'ok') {
        my @toggles = ('coursecatalog','adminmail','newuser');
        my %defaultchecked = (
                    'coursecatalog' => 'on',
                    'adminmail'     => 'off',
                    'newuser'       => 'off',
        );
        if (ref($domconfig{'login'}) eq 'HASH') {
            foreach my $item (@toggles) {
                if ($defaultchecked{$item} eq 'on') { 
                    if (($domconfig{'login'}{$item} eq '0') &&
                        ($env{'form.'.$item} eq '1')) {
                        $changes{$item} = 1;
                    } elsif (($domconfig{'login'}{$item} eq '' ||
                              $domconfig{'login'}{$item} eq '1') &&
                             ($env{'form.'.$item} eq '0')) {
                        $changes{$item} = 1;
                    }
                } elsif ($defaultchecked{$item} eq 'off') {
                    if (($domconfig{'login'}{$item} eq '1') &&
                        ($env{'form.'.$item} eq '0')) {
                        $changes{$item} = 1;
                    } elsif (($domconfig{'login'}{$item} eq '' ||
                              $domconfig{'login'}{$item} eq '0') &&
                             ($env{'form.'.$item} eq '1')) {
                        $changes{$item} = 1;
                    }
                }
            }
        }
        if (keys(%changes) > 0 || $colchgtext) {
            &Apache::loncommon::devalidate_domconfig_cache($dom);
            $resulttext = &mt('Changes made:').'<ul>';
            foreach my $item (sort(keys(%changes))) {
                if ($item eq 'loginvia') {
                    if (ref($changes{$item}) eq 'HASH') {
                        $resulttext .= '<li>'.&mt('Log-in page availability:').'<ul>';
                        foreach my $lonhost (sort(keys(%{$changes{$item}}))) {
                            if (defined($servers{$loginhash{login}{loginvia}{$lonhost}{'server'}})) {
                                if (ref($loginhash{login}{loginvia}{$lonhost}) eq 'HASH') {
                                    my $protocol = $Apache::lonnet::protocol{$env{'form.'.$lonhost.'_server'}};
                                    $protocol = 'http' if ($protocol ne 'https');
                                    my $target = $protocol.'://'.$servers{$env{'form.'.$lonhost.'_server'}};

                                    if ($loginhash{login}{loginvia}{$lonhost}{'serverpath'} eq 'custom') {
                                        $target .= $loginhash{login}{loginvia}{$lonhost}{'custompath'};
                                    } else {
                                        $target .= $loginhash{login}{loginvia}{$lonhost}{'serverpath'}; 
                                    }
                                    $resulttext .= '<li>'.&mt('Server: [_1] log-in page redirects to [_2].',$servers{$lonhost},'<a href="'.$target.'">'.$target.'</a>');
                                    if ($loginhash{login}{loginvia}{$lonhost}{'exempt'} ne '') {
                                        $resulttext .= '&nbsp;'.&mt('No redirection for clients from following IPs:').'&nbsp;'.$loginhash{login}{loginvia}{$lonhost}{'exempt'};
                                    }
                                    $resulttext .= '</li>';
                                } else {
                                    $resulttext .= '<li>'.&mt('Server: [_1] has standard log-in page.',$lonhost).'</li>';
                                }
                            } else {
                                $resulttext .= '<li>'.&mt('Server: [_1] has standard log-in page.',$servers{$lonhost}).'</li>';
                            }
                        }
                        $resulttext .= '</ul></li>';
                    }
                } else {
                    $resulttext .= '<li>'.&mt("$title{$item} set to $offon[$env{'form.'.$item}]").'</li>';
                }
            }
            $resulttext .= $colchgtext.'</ul>';
        } else {
            $resulttext = &mt('No changes made to log-in page settings');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
	    &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    if ($errors) {
        $resulttext .= '<br />'.&mt('The following errors occurred: ').'<ul>'.
                       $errors.'</ul>';
    }
    return $resulttext;
}

sub color_font_choices {
    my %choices =
        &Apache::lonlocal::texthash (
            img => "Header",
            bgs => "Background colors",
            links => "Link colors",
            images => "Images",
            font => "Font color",
            fontmenu => "Font Menu",
            pgbg => "Page",
            tabbg => "Header",
            sidebg => "Border",
            link => "Link",
            alink => "Active link",
            vlink => "Visited link",
        );
    return %choices;
}

sub modify_rolecolors {
    my ($r,$dom,$confname,$roles,%domconfig) = @_;
    my ($resulttext,%rolehash);
    $rolehash{'rolecolors'} = {};
    if (ref($domconfig{'rolecolors'}) ne 'HASH') {
        if ($domconfig{'rolecolors'} eq '') {
            $domconfig{'rolecolors'} = {};
        }
    }
    my ($errors,%changes) = &modify_colors($r,$dom,$confname,$roles,
                         $domconfig{'rolecolors'},$rolehash{'rolecolors'});
    my $putresult = &Apache::lonnet::put_dom('configuration',\%rolehash,
                                             $dom);
    if ($putresult eq 'ok') {
        if (keys(%changes) > 0) {
            &Apache::loncommon::devalidate_domconfig_cache($dom);
            $resulttext = &display_colorchgs($dom,\%changes,$roles,
                                             $rolehash{'rolecolors'});
        } else {
            $resulttext = &mt('No changes made to default color schemes');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
	    &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    if ($errors) {
        $resulttext .= &mt('The following errors occurred: ').'<ul>'.
                       $errors.'</ul>';
    }
    return $resulttext;
}

sub modify_colors {
    my ($r,$dom,$confname,$roles,$domconfig,$confhash) = @_;
    my (%changes,%choices);
    my @bgs;
    my @links = ('link','alink','vlink');
    my @logintext;
    my @images;
    my $servadm = $r->dir_config('lonAdmEMail');
    my $errors;
    foreach my $role (@{$roles}) {
        if ($role eq 'login') {
            %choices = &login_choices();
            @logintext = ('textcol','bgcol');
        } else {
            %choices = &color_font_choices();
            $confhash->{$role}{'fontmenu'} = $env{'form.'.$role.'_fontmenu'};
        }
        if ($role eq 'login') {
            @images = ('img','logo','domlogo','login');
            @bgs = ('pgbg','mainbg','sidebg');
        } else {
            @images = ('img');
            @bgs = ('pgbg','tabbg','sidebg'); 
        }
        $confhash->{$role}{'font'} = $env{'form.'.$role.'_font'};
        foreach my $item (@bgs,@links,@logintext) {
            $confhash->{$role}{$item} = $env{'form.'.$role.'_'.$item};
        }
        my ($configuserok,$author_ok,$switchserver) = 
            &config_check($dom,$confname,$servadm);
        my ($width,$height) = &thumb_dimensions();
        if (ref($domconfig->{$role}) ne 'HASH') {
            $domconfig->{$role} = {};
        }
        foreach my $img (@images) {
            if (($role eq 'login') && (($img eq 'img') || ($img eq 'logo'))) {  
                if (defined($env{'form.login_showlogo_'.$img})) {
                    $confhash->{$role}{'showlogo'}{$img} = 1;
                } else { 
                    $confhash->{$role}{'showlogo'}{$img} = 0;
                }
            } 
	    if ( ! $env{'form.'.$role.'_'.$img.'.filename'} 
		 && !defined($domconfig->{$role}{$img})
		 && !$env{'form.'.$role.'_del_'.$img}
		 && $env{'form.'.$role.'_import_'.$img}) {
		# import the old configured image from the .tab setting
		# if they haven't provided a new one 
		$domconfig->{$role}{$img} = 
		    $env{'form.'.$role.'_import_'.$img};
	    }
            if ($env{'form.'.$role.'_'.$img.'.filename'} ne '') {
                my $error;
                if ($configuserok eq 'ok') {
                    if ($switchserver) {
                        $error = &mt("Upload of [_1] image for $role page(s) is not permitted to this server: [_2]",$choices{$img},$switchserver);
                    } else {
                        if ($author_ok eq 'ok') {
                            my ($result,$logourl) = 
                                &publishlogo($r,'upload',$role.'_'.$img,
                                           $dom,$confname,$img,$width,$height);
                            if ($result eq 'ok') {
                                $confhash->{$role}{$img} = $logourl;
                                $changes{$role}{'images'}{$img} = 1;
                            } else {
                                $error = &mt("Upload of [_1] image for $role page(s) failed because an error occurred publishing the file in RES space. Error was: [_2].",$choices{img},$result);
                            }
                        } else {
                            $error = &mt("Upload of [_1] image for $role page(s) failed because an author role could not be assigned to a Domain Configuration user ([_2]) in domain: [_3].  Error was: [_4].",$choices{$img},$confname,$dom,$author_ok);
                        }
                    }
                } else {
                    $error = &mt("Upload of [_1] image for $role page(s) failed because a Domain Configuration user ([_2]) could not be created in domain: [_3].  Error was: [_4].",$choices{$img},$confname,$dom,$configuserok);
                }
                if ($error) {
                    &Apache::lonnet::logthis($error);
                    $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
                }
            } elsif ($domconfig->{$role}{$img} ne '') {
                if ($domconfig->{$role}{$img} !~ m-^(/res/\Q$dom\E/\Q$confname\E/\Q$img\E)/([^/]+)$-) {
                    my $error;
                    if ($configuserok eq 'ok') {
# is confname an author?
                        if ($switchserver eq '') {
                            if ($author_ok eq 'ok') {
                                my ($result,$logourl) = 
                               &publishlogo($r,'copy',$domconfig->{$role}{$img},
                                            $dom,$confname,$img,$width,$height);
                                if ($result eq 'ok') {
                                    $confhash->{$role}{$img} = $logourl;
				    $changes{$role}{'images'}{$img} = 1;
                                }
                            }
                        }
                    }
                }
            }
        }
        if (ref($domconfig) eq 'HASH') {
            if (ref($domconfig->{$role}) eq 'HASH') {
                foreach my $img (@images) {
                    if ($domconfig->{$role}{$img} ne '') {
                        if ($env{'form.'.$role.'_del_'.$img}) {
                            $confhash->{$role}{$img} = '';
                            $changes{$role}{'images'}{$img} = 1;
                        } else {
                            if ($confhash->{$role}{$img} eq '') {
                                $confhash->{$role}{$img} = $domconfig->{$role}{$img};
                            }
                        }
                    } else {
                        if ($env{'form.'.$role.'_del_'.$img}) {
                            $confhash->{$role}{$img} = '';
                            $changes{$role}{'images'}{$img} = 1;
                        } 
                    }
                    if (($role eq 'login') && (($img eq 'logo') || ($img eq 'img'))) {
                        if (ref($domconfig->{'login'}{'showlogo'}) eq 'HASH') {
                            if ($confhash->{$role}{'showlogo'}{$img} ne 
                                $domconfig->{$role}{'showlogo'}{$img}) {
                                $changes{$role}{'showlogo'}{$img} = 1; 
                            }
                        } else {
                            if ($confhash->{$role}{'showlogo'}{$img} == 0) {
                                $changes{$role}{'showlogo'}{$img} = 1;
                            }
                        }
                    }
                }
                if ($domconfig->{$role}{'font'} ne '') {
                    if ($confhash->{$role}{'font'} ne $domconfig->{$role}{'font'}) {
                        $changes{$role}{'font'} = 1;
                    }
                } else {
                    if ($confhash->{$role}{'font'}) {
                        $changes{$role}{'font'} = 1;
                    }
                }
                if ($role ne 'login') {
                    if ($domconfig->{$role}{'fontmenu'} ne '') {
                        if ($confhash->{$role}{'fontmenu'} ne $domconfig->{$role}{'fontmenu'}) {
                            $changes{$role}{'fontmenu'} = 1;
                        }
                    } else {
                        if ($confhash->{$role}{'fontmenu'}) {
                            $changes{$role}{'fontmenu'} = 1;
                        }
                    }
                }
                foreach my $item (@bgs) {
                    if ($domconfig->{$role}{$item} ne '') {
                        if ($confhash->{$role}{$item} ne $domconfig->{$role}{$item}) {
                            $changes{$role}{'bgs'}{$item} = 1;
                        } 
                    } else {
                        if ($confhash->{$role}{$item}) {
                            $changes{$role}{'bgs'}{$item} = 1;
                        }
                    }
                }
                foreach my $item (@links) {
                    if ($domconfig->{$role}{$item} ne '') {
                        if ($confhash->{$role}{$item} ne $domconfig->{$role}{$item}) {
                            $changes{$role}{'links'}{$item} = 1;
                        }
                    } else {
                        if ($confhash->{$role}{$item}) {
                            $changes{$role}{'links'}{$item} = 1;
                        }
                    }
                }
                foreach my $item (@logintext) {
                    if ($domconfig->{$role}{$item} ne '') {
                        if ($confhash->{$role}{$item} ne $domconfig->{$role}{$item}) {
                            $changes{$role}{'logintext'}{$item} = 1;
                        }
                    } else {
                        if ($confhash->{$role}{$item}) {
                            $changes{$role}{'logintext'}{$item} = 1;
                        }
                    }
                }
            } else {
                &default_change_checker($role,\@images,\@links,\@bgs,
                                        \@logintext,$confhash,\%changes); 
            }
        } else {
            &default_change_checker($role,\@images,\@links,\@bgs,
                                    \@logintext,$confhash,\%changes); 
        }
    }
    return ($errors,%changes);
}

sub config_check {
    my ($dom,$confname,$servadm) = @_;
    my ($configuserok,$author_ok,$switchserver,%currroles);
    my $uhome = &Apache::lonnet::homeserver($confname,$dom,1);
    ($configuserok,%currroles) = &check_configuser($uhome,$dom,
                                                   $confname,$servadm);
    if ($configuserok eq 'ok') {
        $switchserver = &check_switchserver($dom,$confname);
        if ($switchserver eq '') {
            $author_ok = &check_authorstatus($dom,$confname,%currroles);
        }
    }
    return ($configuserok,$author_ok,$switchserver);
}

sub default_change_checker {
    my ($role,$images,$links,$bgs,$logintext,$confhash,$changes) = @_;
    foreach my $item (@{$links}) {
        if ($confhash->{$role}{$item}) {
            $changes->{$role}{'links'}{$item} = 1;
        }
    }
    foreach my $item (@{$bgs}) {
        if ($confhash->{$role}{$item}) {
            $changes->{$role}{'bgs'}{$item} = 1;
        }
    }
    foreach my $item (@{$logintext}) {
        if ($confhash->{$role}{$item}) {
            $changes->{$role}{'logintext'}{$item} = 1;
        }
    }
    foreach my $img (@{$images}) {
        if ($env{'form.'.$role.'_del_'.$img}) {
            $confhash->{$role}{$img} = '';
            $changes->{$role}{'images'}{$img} = 1;
        }
        if ($role eq 'login') {
            if ($confhash->{$role}{'showlogo'}{$img} == 0) {
                $changes->{$role}{'showlogo'}{$img} = 1;
            }
        }
    }
    if ($confhash->{$role}{'font'}) {
        $changes->{$role}{'font'} = 1;
    }
}

sub display_colorchgs {
    my ($dom,$changes,$roles,$confhash) = @_;
    my (%choices,$resulttext);
    if (!grep(/^login$/,@{$roles})) {
        $resulttext = &mt('Changes made:').'<br />';
    }
    foreach my $role (@{$roles}) {
        if ($role eq 'login') {
            %choices = &login_choices();
        } else {
            %choices = &color_font_choices();
        }
        if (ref($changes->{$role}) eq 'HASH') {
            if ($role ne 'login') {
                $resulttext .= '<h4>'.&mt($role).'</h4>';
            }
            foreach my $key (sort(keys(%{$changes->{$role}}))) {
                if ($role ne 'login') {
                    $resulttext .= '<ul>';
                }
                if (ref($changes->{$role}{$key}) eq 'HASH') {
                    if ($role ne 'login') {
                        $resulttext .= '<li>'.&mt($choices{$key}).':<ul>';
                    }
                    foreach my $item (sort(keys(%{$changes->{$role}{$key}}))) {
                        if (($role eq 'login') && ($key eq 'showlogo')) {
                            if ($confhash->{$role}{$key}{$item}) {
                                $resulttext .= '<li>'.&mt("$choices{$item} set to be displayed").'</li>';
                            } else {
                                $resulttext .= '<li>'.&mt("$choices{$item} set to not be displayed").'</li>';
                            }
                        } elsif ($confhash->{$role}{$item} eq '') {
                            $resulttext .= '<li>'.&mt("$choices{$item} set to default").'</li>';
                        } else {
                            my $newitem = $confhash->{$role}{$item};
                            if ($key eq 'images') {
                                $newitem = '<img src="'.$confhash->{$role}{$item}.'" alt="'.$choices{$item}.'" valign="bottom" />';
                            }
                            $resulttext .= '<li>'.&mt("$choices{$item} set to [_1]",$newitem).'</li>';
                        }
                    }
                    if ($role ne 'login') {
                        $resulttext .= '</ul></li>';
                    }
                } else {
                    if ($confhash->{$role}{$key} eq '') {
                        $resulttext .= '<li>'.&mt("$choices{$key} set to default").'</li>';
                    } else {
                        $resulttext .= '<li>'.&mt("$choices{$key} set to [_1]",$confhash->{$role}{$key}).'</li>';
                    }
                }
                if ($role ne 'login') {
                    $resulttext .= '</ul>';
                }
            }
        }
    }
    return $resulttext;
}

sub thumb_dimensions {
    return ('200','50');
}

sub check_dimensions {
    my ($inputfile) = @_;
    my ($fullwidth,$fullheight);
    if ($inputfile =~ m|^[/\w.\-]+$|) {
        if (open(PIPE,"identify $inputfile 2>&1 |")) {
            my $imageinfo = <PIPE>;
            if (!close(PIPE)) {
                &Apache::lonnet::logthis("Failed to close PIPE opened to retrieve image information for $inputfile");
            }
            chomp($imageinfo);
            my ($fullsize) = 
                ($imageinfo =~ /^\Q$inputfile\E\s+\w+\s+(\d+x\d+)/);
            if ($fullsize) {
                ($fullwidth,$fullheight) = split(/x/,$fullsize);
            }
        }
    }
    return ($fullwidth,$fullheight);
}

sub check_configuser {
    my ($uhome,$dom,$confname,$servadm) = @_;
    my ($configuserok,%currroles);
    if ($uhome eq 'no_host') {
        srand( time() ^ ($$ + ($$ << 15))  ); # Seed rand.
        my $configpass = &LONCAPA::Enrollment::create_password();
        $configuserok = 
            &Apache::lonnet::modifyuser($dom,$confname,'','internal',
                             $configpass,'','','','','',undef,$servadm);
    } else {
        $configuserok = 'ok';
        %currroles = 
            &Apache::lonnet::get_my_roles($confname,$dom,'userroles');
    }
    return ($configuserok,%currroles);
}

sub check_authorstatus {
    my ($dom,$confname,%currroles) = @_;
    my $author_ok;
    if (!$currroles{':'.$dom.':au'}) {
        my $start = time;
        my $end = 0;
        $author_ok = 
            &Apache::lonnet::assignrole($dom,$confname,'/'.$dom.'/',
                                        'au',$end,$start,'','','domconfig');
    } else {
        $author_ok = 'ok';
    }
    return $author_ok;
}

sub publishlogo {
    my ($r,$action,$formname,$dom,$confname,$subdir,$thumbwidth,$thumbheight,$savefileas) = @_;
    my ($output,$fname,$logourl);
    if ($action eq 'upload') {
        $fname=$env{'form.'.$formname.'.filename'};
        chop($env{'form.'.$formname});
    } else {
        ($fname) = ($formname =~ /([^\/]+)$/);
    }
    if ($savefileas ne '') {
        $fname = $savefileas;
    }
    $fname=&Apache::lonnet::clean_filename($fname);
# See if there is anything left
    unless ($fname) { return ('error: no uploaded file'); }
    $fname="$subdir/$fname";
    my $filepath='/home/'.$confname.'/public_html';
    my ($fnamepath,$file,$fetchthumb);
    $file=$fname;
    if ($fname=~m|/|) {
        ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
    }
    my @parts=split(/\//,$filepath.'/'.$fnamepath);
    my $count;
    for ($count=4;$count<=$#parts;$count++) {
        $filepath.="/$parts[$count]";
        if ((-e $filepath)!=1) {
            mkdir($filepath,02770);
        }
    }
    # Check for bad extension and disallow upload
    if ($file=~/\.(\w+)$/ &&
        (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
        $output = 
            &mt('Invalid file extension ([_1]) - reserved for LONCAPA use.',$1); 
    } elsif ($file=~/\.(\w+)$/ &&
        !defined(&Apache::loncommon::fileembstyle($1))) {
        $output = &mt('Unrecognized file extension ([_1]) - rename the file with a proper extension and re-upload.',$1);
    } elsif ($file=~/\.(\d+)\.(\w+)$/) {
        $output = &mt('File name not allowed - rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2);
    } elsif (-d "$filepath/$file") {
        $output = &mt('File name is a directory name - rename the file and re-upload');
    } else {
        my $source = $filepath.'/'.$file;
        my $logfile;
        if (!open($logfile,">>$source".'.log')) {
            return (&mt('No write permission to Construction Space'));
        }
        print $logfile
"\n================= Publish ".localtime()." ================\n".
$env{'user.name'}.':'.$env{'user.domain'}."\n";
# Save the file
        if (!open(FH,'>'.$source)) {
            &Apache::lonnet::logthis('Failed to create '.$source);
            return (&mt('Failed to create file'));
        }
        if ($action eq 'upload') {
            if (!print FH ($env{'form.'.$formname})) {
                &Apache::lonnet::logthis('Failed to write to '.$source);
                return (&mt('Failed to write file'));
            }
        } else {
            my $original = &Apache::lonnet::filelocation('',$formname);
            if(!copy($original,$source)) {
                &Apache::lonnet::logthis('Failed to copy '.$original.' to '.$source);
                return (&mt('Failed to write file'));
            }
        }
        close(FH);
        chmod(0660, $source); # Permissions to rw-rw---.

        my $docroot=$r->dir_config('lonDocRoot');
        my $targetdir=$docroot.'/res/'.$dom.'/'.$confname .'/'.$fnamepath;
        my $copyfile=$targetdir.'/'.$file;

        my @parts=split(/\//,$targetdir);
        my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
        for (my $count=5;$count<=$#parts;$count++) {
            $path.="/$parts[$count]";
            if (!-e $path) {
                print $logfile "\nCreating directory ".$path;
                mkdir($path,02770);
            }
        }
        my $versionresult;
        if (-e $copyfile) {
            $versionresult = &logo_versioning($targetdir,$file,$logfile);
        } else {
            $versionresult = 'ok';
        }
        if ($versionresult eq 'ok') {
            if (copy($source,$copyfile)) {
                print $logfile "\nCopied original source to ".$copyfile."\n";
                $output = 'ok';
                $logourl = '/res/'.$dom.'/'.$confname.'/'.$fname;
                push(@{$modified_urls},[$copyfile,$source]);
                my $metaoutput =
                    &write_metadata($dom,$confname,$formname,$targetdir,$file,$logfile);
                unless ($registered_cleanup) {
                    my $handlers = $r->get_handlers('PerlCleanupHandler');
                    $r->set_handlers('PerlCleanupHandler' => [\&notifysubscribed,@{$handlers}]);
                    $registered_cleanup=1;
                }
            } else {
                print $logfile "\nUnable to write ".$copyfile.':'.$!."\n";
                $output = &mt('Failed to copy file to RES space').", $!";
            }
            if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
                my $inputfile = $filepath.'/'.$file;
                my $outfile = $filepath.'/'.'tn-'.$file;
                my ($fullwidth,$fullheight) = &check_dimensions($inputfile);
                if ($fullwidth ne '' && $fullheight ne '') { 
                    if ($fullwidth > $thumbwidth && $fullheight > $thumbheight) {
                        my $thumbsize = $thumbwidth.'x'.$thumbheight;
                        system("convert -sample $thumbsize $inputfile $outfile");
                        chmod(0660, $filepath.'/tn-'.$file);
                        if (-e $outfile) {
                            my $copyfile=$targetdir.'/tn-'.$file;
                            if (copy($outfile,$copyfile)) {
                                print $logfile "\nCopied source to ".$copyfile."\n";
                                my $thumb_metaoutput =
                                    &write_metadata($dom,$confname,$formname,
                                                    $targetdir,'tn-'.$file,$logfile);
                                push(@{$modified_urls},[$copyfile,$outfile]);
                                unless ($registered_cleanup) {
                                    my $handlers = $r->get_handlers('PerlCleanupHandler');
                                    $r->set_handlers('PerlCleanupHandler' => [\&notifysubscribed,@{$handlers}]);
                                    $registered_cleanup=1;
                                }
                            } else {
                                print $logfile "\nUnable to write ".$copyfile.
                                               ':'.$!."\n";
                            }
                        }
                    }
                }
            }
        } else {
            $output = $versionresult;
        }
    }
    return ($output,$logourl);
}

sub logo_versioning {
    my ($targetdir,$file,$logfile) = @_;
    my $target = $targetdir.'/'.$file;
    my ($maxversion,$fn,$extn,$output);
    $maxversion = 0;
    if ($file =~ /^(.+)\.(\w+)$/) {
        $fn=$1;
        $extn=$2;
    }
    opendir(DIR,$targetdir);
    while (my $filename=readdir(DIR)) {
        if ($filename=~/\Q$fn\E\.(\d+)\.\Q$extn\E$/) {
            $maxversion=($1>$maxversion)?$1:$maxversion;
        }
    }
    $maxversion++;
    print $logfile "\nCreating old version ".$maxversion."\n";
    my $copyfile=$targetdir.'/'.$fn.'.'.$maxversion.'.'.$extn;
    if (copy($target,$copyfile)) {
        print $logfile "Copied old target to ".$copyfile."\n";
        $copyfile=$copyfile.'.meta';
        if (copy($target.'.meta',$copyfile)) {
            print $logfile "Copied old target metadata to ".$copyfile."\n";
            $output = 'ok';
        } else {
            print $logfile "Unable to write metadata ".$copyfile.':'.$!."\n";
            $output = &mt('Failed to copy old meta').", $!, ";
        }
    } else {
        print $logfile "Unable to write ".$copyfile.':'.$!."\n";
        $output = &mt('Failed to copy old target').", $!, ";
    }
    return $output;
}

sub write_metadata {
    my ($dom,$confname,$formname,$targetdir,$file,$logfile) = @_;
    my (%metadatafields,%metadatakeys,$output);
    $metadatafields{'title'}=$formname;
    $metadatafields{'creationdate'}=time;
    $metadatafields{'lastrevisiondate'}=time;
    $metadatafields{'copyright'}='public';
    $metadatafields{'modifyinguser'}=$env{'user.name'}.':'.
                                         $env{'user.domain'};
    $metadatafields{'authorspace'}=$confname.':'.$dom;
    $metadatafields{'domain'}=$dom;
    {
        print $logfile "\nWrite metadata file for ".$targetdir.'/'.$file;
        my $mfh;
        if (open($mfh,'>'.$targetdir.'/'.$file.'.meta')) {
            foreach (sort keys %metadatafields) {
                unless ($_=~/\./) {
                    my $unikey=$_;
                    $unikey=~/^([A-Za-z]+)/;
                    my $tag=$1;
                    $tag=~tr/A-Z/a-z/;
                    print $mfh "\n\<$tag";
                    foreach (split(/\,/,$metadatakeys{$unikey})) {
                        my $value=$metadatafields{$unikey.'.'.$_};
                        $value=~s/\"/\'\'/g;
                        print $mfh ' '.$_.'="'.$value.'"';
                    }
                    print $mfh '>'.
                        &HTML::Entities::encode($metadatafields{$unikey},'<>&"')
                            .'</'.$tag.'>';
                }
            }
            $output = 'ok';
            print $logfile "\nWrote metadata";
            close($mfh);
        } else {
            print $logfile "\nFailed to open metadata file";
            $output = &mt('Could not write metadata');
        }
    }
    return $output;
}

sub notifysubscribed {
    foreach my $targetsource (@{$modified_urls}){
        next unless (ref($targetsource) eq 'ARRAY');
        my ($target,$source)=@{$targetsource};
        if ($source ne '') {
            if (open(my $logfh,'>>'.$source.'.log')) {
                print $logfh "\nCleanup phase: Notifications\n";
                my @subscribed=&subscribed_hosts($target);
                foreach my $subhost (@subscribed) {
                    print $logfh "\nNotifying host ".$subhost.':';
                    my $reply=&Apache::lonnet::critical('update:'.$target,$subhost);
                    print $logfh $reply;
                }
                my @subscribedmeta=&subscribed_hosts("$target.meta");
                foreach my $subhost (@subscribedmeta) {
                    print $logfh "\nNotifying host for metadata only ".$subhost.':';
                    my $reply=&Apache::lonnet::critical('update:'.$target.'.meta',
                                                        $subhost);
                    print $logfh $reply;
                }
                print $logfh "\n============ Done ============\n";
                close(logfh);
            }
        }
    }
    return OK;
}

sub subscribed_hosts {
    my ($target) = @_;
    my @subscribed;
    if (open(my $fh,"<$target.subscription")) {
        while (my $subline=<$fh>) {
            if ($subline =~ /^($match_lonid):/) {
                my $host = $1;
                if ($host ne $Apache::lonnet::perlvar{'lonHostID'}) {
                    unless (grep(/^\Q$host\E$/,@subscribed)) {
                        push(@subscribed,$host);
                    }
                }
            }
        }
    }
    return @subscribed;
}

sub check_switchserver {
    my ($dom,$confname) = @_;
    my ($allowed,$switchserver);
    my $home = &Apache::lonnet::homeserver($confname,$dom);
    if ($home eq 'no_host') {
        $home = &Apache::lonnet::domain($dom,'primary');
    }
    my @ids=&Apache::lonnet::current_machine_ids();
    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
    if (!$allowed) {
	$switchserver='<a href="/adm/switchserver?otherserver='.$home.'&role=dc./'.$dom.'/">'.&mt('Switch Server').'</a>';
    }
    return $switchserver;
}

sub modify_quotas {
    my ($dom,$action,%domconfig) = @_;
    my ($context,@usertools,@options,%validations,%titles,%confhash,%toolshash,
        %limithash,$toolregexp,%conditions,$resulttext,%changes);
    if ($action eq 'quotas') {
        $context = 'tools'; 
    } else { 
        $context = $action;
    }
    if ($context eq 'requestcourses') {
        @usertools = ('official','unofficial','community');
        @options =('norequest','approval','validate','autolimit');
        %validations = &Apache::lonnet::auto_courserequest_checks($dom);
        %titles = &courserequest_titles();
        $toolregexp = join('|',@usertools);
        %conditions = &courserequest_conditions();
    } else {
        @usertools = ('aboutme','blog','portfolio');
        %titles = &tool_titles();
    }
    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
    foreach my $key (keys(%env)) {
        if ($context eq 'requestcourses') {
            if ($key =~ /^form\.crsreq_($toolregexp)_(.+)$/) {
                my $item = $1;
                my $type = $2;
                if ($type =~ /^limit_(.+)/) {
                    $limithash{$item}{$1} = $env{$key};
                } else {
                    $confhash{$item}{$type} = $env{$key};
                }
            }
        } else {
            if ($key =~ /^form\.quota_(.+)$/) {
                $confhash{'defaultquota'}{$1} = $env{$key};
            }
            if ($key =~ /^form\.\Q$context\E_(.+)$/) {
                @{$toolshash{$1}} = &Apache::loncommon::get_env_multiple($key);
            }
        }
    }
    if ($context eq 'requestcourses') {
        my @approvalnotify = &Apache::loncommon::get_env_multiple('form.reqapprovalnotify');
        @approvalnotify = sort(@approvalnotify);
        $confhash{'notify'}{'approval'} = join(',',@approvalnotify);
        if (ref($domconfig{$action}) eq 'HASH') {
            if (ref($domconfig{$action}{'notify'}) eq 'HASH') {
                if ($domconfig{$action}{'notify'}{'approval'} ne $confhash{'notify'}{'approval'}) {
                    $changes{'notify'}{'approval'} = 1;
                }
            } else {
                if ($confhash{'notify'}{'approval'}) {
                    $changes{'notify'}{'approval'} = 1;
                }
            }
        } else {
            if ($confhash{'notify'}{'approval'}) {
                $changes{'notify'}{'approval'} = 1;
            }
        }
    } else {
        $confhash{'defaultquota'}{'default'} = $env{'form.defaultquota'};
    }
    foreach my $item (@usertools) {
        foreach my $type (@{$types},'default','_LC_adv') {
            my $unset; 
            if ($context eq 'requestcourses') {
                $unset = '0';
                if ($type eq '_LC_adv') {
                    $unset = '';
                }
                if ($confhash{$item}{$type} eq 'autolimit') {
                    $confhash{$item}{$type} .= '=';
                    unless ($limithash{$item}{$type} =~ /\D/) {
                        $confhash{$item}{$type} .= $limithash{$item}{$type};
                    }
                }
            } else {
                if (grep(/^\Q$type\E$/,@{$toolshash{$item}})) {
                    $confhash{$item}{$type} = 1;
                } else {
                    $confhash{$item}{$type} = 0;
                }
            }
            if (ref($domconfig{$action}) eq 'HASH') {
                if (ref($domconfig{$action}{$item}) eq 'HASH') {
                    if ($domconfig{$action}{$item}{$type} ne $confhash{$item}{$type}) {
                        $changes{$item}{$type} = 1;
                    }
                } else {
                    if ($context eq 'requestcourses') {
                        if ($confhash{$item}{$type} ne $unset) {
                            $changes{$item}{$type} = 1;
                        }
                    } else {
                        if (!$confhash{$item}{$type}) {
                            $changes{$item}{$type} = 1;
                        }
                    }
                }
            } else {
                if ($context eq 'requestcourses') {
                    if ($confhash{$item}{$type} ne $unset) {
                        $changes{$item}{$type} = 1;
                    }
                } else {
                    if (!$confhash{$item}{$type}) {
                        $changes{$item}{$type} = 1;
                    }
                }
            }
        }
    }
    unless ($context eq 'requestcourses') {
        if (ref($domconfig{'quotas'}) eq 'HASH') {
            if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
                foreach my $key (keys(%{$domconfig{'quotas'}{'defaultquota'}})) {
                    if (exists($confhash{'defaultquota'}{$key})) {
                        if ($confhash{'defaultquota'}{$key} ne $domconfig{'quotas'}{'defaultquota'}{$key}) {
                            $changes{'defaultquota'}{$key} = 1;
                        }
                    } else {
                        $confhash{'defaultquota'}{$key} = $domconfig{'quotas'}{'defaultquota'}{$key};
                    }
                }
            } else {
                foreach my $key (keys(%{$domconfig{'quotas'}})) {
                    if (exists($confhash{'defaultquota'}{$key})) {
                        if ($confhash{'defaultquota'}{$key} ne $domconfig{'quotas'}{$key}) {
                            $changes{'defaultquota'}{$key} = 1;
                        }
                    } else {
                        $confhash{'defaultquota'}{$key} = $domconfig{'quotas'}{$key};
                    }
                }
            }
        }
        if (ref($confhash{'defaultquota'}) eq 'HASH') {
            foreach my $key (keys(%{$confhash{'defaultquota'}})) {
                if (ref($domconfig{'quotas'}) eq 'HASH') {
                    if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
                        if (!exists($domconfig{'quotas'}{'defaultquota'}{$key})) {
                            $changes{'defaultquota'}{$key} = 1;
                        }
                    } else {
                        if (!exists($domconfig{'quotas'}{$key})) {
                            $changes{'defaultquota'}{$key} = 1;
                        }
                    }
                } else {
                    $changes{'defaultquota'}{$key} = 1;
                }
            }
        }
    }

    foreach my $key (keys(%confhash)) {
        $domdefaults{$key} = $confhash{$key};
    }
   
    my %quotahash = (
                      $action => { %confhash }
                    );
    my $putresult = &Apache::lonnet::put_dom('configuration',\%quotahash,
                                             $dom);
    if ($putresult eq 'ok') {
        if (keys(%changes) > 0) {
            my $cachetime = 24*60*60;
            &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);

            $resulttext = &mt('Changes made:').'<ul>';
            unless ($context eq 'requestcourses') {
                if (ref($changes{'defaultquota'}) eq 'HASH') {
                    $resulttext .= '<li>'.&mt('Portfolio default quotas').'<ul>';
                    foreach my $type (@{$types},'default') {
                        if (defined($changes{'defaultquota'}{$type})) {
                            my $typetitle = $usertypes->{$type};
                            if ($type eq 'default') {
                                $typetitle = $othertitle;
                            }
                            $resulttext .= '<li>'.&mt('[_1] set to [_2] Mb',$typetitle,$confhash{'defaultquota'}{$type}).'</li>';
                        }
                    }
                    $resulttext .= '</ul></li>';
                }
            }
            my %newenv;
            foreach my $item (@usertools) {
                if (ref($changes{$item}) eq 'HASH') {
                    my $newacc = 
                        &Apache::lonnet::usertools_access($env{'user.name'},
                                                          $env{'user.domain'},
                                                          $item,'reload',$context);
                    if ($context eq 'requestcourses') {
                        if ($env{'environment.canrequest.'.$item} ne $newacc) {
                            $newenv{'environment.canrequest.'.$item} = $newacc;
                        }
                    } else {
                        if ($env{'environment.availabletools.'.$item} ne $newacc) { 
                            $newenv{'environment.availabletools.'.$item} = $newacc;
                        }
                    }
                    $resulttext .= '<li>'.$titles{$item}.'<ul>';
                    foreach my $type (@{$types},'default','_LC_adv') {
                        if ($changes{$item}{$type}) {
                            my $typetitle = $usertypes->{$type};
                            if ($type eq 'default') {
                                $typetitle = $othertitle;
                            } elsif ($type eq '_LC_adv') {
                                $typetitle = 'LON-CAPA Advanced Users'; 
                            }
                            if ($confhash{$item}{$type}) {
                                if ($context eq 'requestcourses') {
                                    my $cond;
                                    if ($confhash{$item}{$type} =~ /^autolimit=(\d*)$/) {
                                        if ($1 eq '') {
                                            $cond = &mt('(Automatic processing of any request).');
                                        } else {
                                            $cond = &mt('(Automatic processing of requests up to limit of [quant,_1,request] per user).',$1);
                                        }
                                    } else { 
                                        $cond = $conditions{$confhash{$item}{$type}};
                                    }
                                    $resulttext .= '<li>'.&mt('Set to be available to [_1].',$typetitle).' '.$cond.'</li>';
                                } else {
                                    $resulttext .= '<li>'.&mt('Set to be available to [_1]',$typetitle).'</li>';
                                }
                            } else {
                                if ($type eq '_LC_adv') {
                                    if ($confhash{$item}{$type} eq '0') {
                                        $resulttext .= '<li>'.&mt('Set to be unavailable to [_1]',$typetitle).'</li>';
                                    } else { 
                                        $resulttext .= '<li>'.&mt('No override set for [_1]',$typetitle).'</li>';
                                    }
                                } else {
                                    $resulttext .= '<li>'.&mt('Set to be unavailable to [_1]',$typetitle).'</li>';
                                }
                            }
                        }
                    }
                    $resulttext .= '</ul></li>';
                }
            }
            if ($action eq 'requestcourses') {
                if (ref($changes{'notify'}) eq 'HASH') {
                    if ($changes{'notify'}{'approval'}) {
                        if (ref($confhash{'notify'}) eq 'HASH') {
                            if ($confhash{'notify'}{'approval'}) {
                                $resulttext .= '<li>'.&mt('Notification of requests requiring approval will be sent to: ').$confhash{'notify'}{'approval'}.'</li>';
                            } else {
                                $resulttext .= '<li>'.&mt('No Domain Coordinators will receive notification of course requests requiring approval.').'</li>';
                            }
                        }
                    }
                }
            }
            $resulttext .= '</ul>';
            if (keys(%newenv)) {
                &Apache::lonnet::appenv(\%newenv);
            }
        } else {
            if ($context eq 'requestcourses') {
                $resulttext = &mt('No changes made to rights to request creation of courses.');
            } else {
                $resulttext = &mt('No changes made to availability of personal information pages, blogs, portfolios or default quotas');
            }
        }
    } else {
        $resulttext = '<span class="LC_error">'.
	    &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    return $resulttext;
}

sub modify_autoenroll {
    my ($dom,%domconfig) = @_;
    my ($resulttext,%changes);
    my %currautoenroll;
    if (ref($domconfig{'autoenroll'}) eq 'HASH') {
        foreach my $key (keys(%{$domconfig{'autoenroll'}})) {
            $currautoenroll{$key} = $domconfig{'autoenroll'}{$key};
        }
    }
    my $autorun = &Apache::lonnet::auto_run(undef,$dom),
    my %title = ( run => 'Auto-enrollment active',
                  sender => 'Sender for notification messages',
                  coowners => 'Automatic assignment of co-ownership to instructors of record (institutional data)');
    my @offon = ('off','on');
    my $sender_uname = $env{'form.sender_uname'};
    my $sender_domain = $env{'form.sender_domain'};
    if ($sender_domain eq '') {
        $sender_uname = '';
    } elsif ($sender_uname eq '') {
        $sender_domain = '';
    }
    my $coowners = $env{'form.autoassign_coowners'};
    my %autoenrollhash =  (
                       autoenroll => { 'run' => $env{'form.autoenroll_run'},
                                       'sender_uname' => $sender_uname,
                                       'sender_domain' => $sender_domain,
                                       'co-owners' => $coowners,
                                }
                     );
    my $putresult = &Apache::lonnet::put_dom('configuration',\%autoenrollhash,
                                             $dom);
    if ($putresult eq 'ok') {
        if (exists($currautoenroll{'run'})) {
             if ($currautoenroll{'run'} ne $env{'form.autoenroll_run'}) {
                 $changes{'run'} = 1;
             }
        } elsif ($autorun) {
            if ($env{'form.autoenroll_run'} ne '1') {
                 $changes{'run'} = 1;
            }
        }
        if ($currautoenroll{'sender_uname'} ne $sender_uname) {
            $changes{'sender'} = 1;
        }
        if ($currautoenroll{'sender_domain'} ne $sender_domain) {
            $changes{'sender'} = 1;
        }
        if ($currautoenroll{'co-owners'} ne '') {
            if ($currautoenroll{'co-owners'} ne $coowners) {
                $changes{'coowners'} = 1;
            }
        } elsif ($coowners) {
            $changes{'coowners'} = 1;
        }      
        if (keys(%changes) > 0) {
            $resulttext = &mt('Changes made:').'<ul>';
            if ($changes{'run'}) {
                $resulttext .= '<li>'.&mt("$title{'run'} set to $offon[$env{'form.autoenroll_run'}]").'</li>';
            }
            if ($changes{'sender'}) {
                if ($sender_uname eq '' || $sender_domain eq '') {
                    $resulttext .= '<li>'.&mt("$title{'sender'} set to default (course owner).").'</li>';
                } else {
                    $resulttext .= '<li>'.&mt("$title{'sender'} set to [_1]",$sender_uname.':'.$sender_domain).'</li>';
                }
            }
            if ($changes{'coowners'}) {
                $resulttext .= '<li>'.&mt("$title{'coowners'} set to $offon[$env{'form.autoassign_coowners'}]").'</li>';
                &Apache::loncommon::devalidate_domconfig_cache($dom);
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = &mt('No changes made to auto-enrollment settings');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
	    &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    return $resulttext;
}

sub modify_autoupdate {
    my ($dom,%domconfig) = @_;
    my ($resulttext,%currautoupdate,%fields,%changes);
    if (ref($domconfig{'autoupdate'}) eq 'HASH') {
        foreach my $key (keys(%{$domconfig{'autoupdate'}})) {
            $currautoupdate{$key} = $domconfig{'autoupdate'}{$key};
        }
    }
    my @offon = ('off','on');
    my %title = &Apache::lonlocal::texthash (
                   run => 'Auto-update:',
                   classlists => 'Updates to user information in classlists?'
                );
    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
    my %fieldtitles = &Apache::lonlocal::texthash (
                        id => 'Student/Employee ID',
                        permanentemail => 'E-mail address',
                        lastname => 'Last Name',
                        firstname => 'First Name',
                        middlename => 'Middle Name',
                        generation => 'Generation',
                      );
    $othertitle = &mt('All users');
    if (keys(%{$usertypes}) >  0) {
        $othertitle = &mt('Other users');
    }
    foreach my $key (keys(%env)) {
        if ($key =~ /^form\.updateable_(.+)_([^_]+)$/) {
            my ($usertype,$item) = ($1,$2);
            if (grep(/^\Q$item\E$/,keys(%fieldtitles))) {
                if ($usertype eq 'default') {   
                    push(@{$fields{$1}},$2);
                } elsif (ref($types) eq 'ARRAY') {
                    if (grep(/^\Q$usertype\E$/,@{$types})) {
                        push(@{$fields{$1}},$2);
                    }
                }
            }
        }
    }
    my @lockablenames = &Apache::loncommon::get_env_multiple('form.lockablenames');
    @lockablenames = sort(@lockablenames);
    if (ref($currautoupdate{'lockablenames'}) eq 'ARRAY') {
        my @changed = &Apache::loncommon::compare_arrays($currautoupdate{'lockablenames'},\@lockablenames);
        if (@changed) {
            $changes{'lockablenames'} = 1;
        }
    } else {
        if (@lockablenames) {
            $changes{'lockablenames'} = 1;
        }
    }
    my %updatehash = (
                      autoupdate => { run => $env{'form.autoupdate_run'},
                                      classlists => $env{'form.classlists'},
                                      fields => {%fields},
                                      lockablenames => \@lockablenames,
                                    }
                     );
    foreach my $key (keys(%currautoupdate)) {
        if (($key eq 'run') || ($key eq 'classlists')) {
            if (exists($updatehash{autoupdate}{$key})) {
                if ($currautoupdate{$key} ne $updatehash{autoupdate}{$key}) {
                    $changes{$key} = 1;
                }
            }
        } elsif ($key eq 'fields') {
            if (ref($currautoupdate{$key}) eq 'HASH') {
                foreach my $item (@{$types},'default') {
                    if (ref($currautoupdate{$key}{$item}) eq 'ARRAY') {
                        my $change = 0;
                        foreach my $type (@{$currautoupdate{$key}{$item}}) {
                            if (!exists($fields{$item})) {
                                $change = 1;
                                last;
                            } elsif (ref($fields{$item}) eq 'ARRAY') {
                                if (!grep(/^\Q$type\E$/,@{$fields{$item}})) {
                                    $change = 1;
                                    last;
                                }
                            }
                        }
                        if ($change) {
                            push(@{$changes{$key}},$item);
                        }
                    } 
                }
            }
        } elsif ($key eq 'lockablenames') {
            if (ref($currautoupdate{$key}) eq 'ARRAY') {
                my @changed = &Apache::loncommon::compare_arrays($currautoupdate{'lockablenames'},\@lockablenames);
                if (@changed) {
                    $changes{'lockablenames'} = 1;
                }
            } else {
                if (@lockablenames) {
                    $changes{'lockablenames'} = 1;
                }
            }
        }
    }
    unless (grep(/^\Qlockablenames\E$/,keys(%currautoupdate))) {
        if (@lockablenames) {
            $changes{'lockablenames'} = 1;
        }
    }
    foreach my $item (@{$types},'default') {
        if (defined($fields{$item})) {
            if (ref($currautoupdate{'fields'}) eq 'HASH') {
                if (ref($currautoupdate{'fields'}{$item}) eq 'ARRAY') {
                    my $change = 0;
                    if (ref($fields{$item}) eq 'ARRAY') {
                        foreach my $type (@{$fields{$item}}) {
                            if (!grep(/^\Q$type\E$/,@{$currautoupdate{'fields'}{$item}})) {
                                $change = 1;
                                last;
                            }
                        }
                    }
                    if ($change) {
                        push(@{$changes{'fields'}},$item);
                    }
                } else {
                    push(@{$changes{'fields'}},$item);
                }
            } else {
                push(@{$changes{'fields'}},$item);
            }
        }
    }
    my $putresult = &Apache::lonnet::put_dom('configuration',\%updatehash,
                                             $dom);
    if ($putresult eq 'ok') {
        if (keys(%changes) > 0) {
            $resulttext = &mt('Changes made:').'<ul>';
            foreach my $key (sort(keys(%changes))) {
                if ($key eq 'lockablenames') {
                    $resulttext .= '<li>';
                    if (@lockablenames) {
                        $usertypes->{'default'} = $othertitle;
                        $resulttext .= &mt("User preference to disable replacement of user's name with institutional data (by auto-update), available for the following affiliations:").' '.
                                   join(', ', map { $usertypes->{$_}; } @lockablenames).'</li>';
                    } else {
                        $resulttext .= &mt("User preference to disable replacement of user's name with institutional data (by auto-update) is unavailable.");
                    }
                    $resulttext .= '</li>';
                } elsif (ref($changes{$key}) eq 'ARRAY') {
                    foreach my $item (@{$changes{$key}}) {
                        my @newvalues;
                        foreach my $type (@{$fields{$item}}) {
                            push(@newvalues,$fieldtitles{$type});
                        }
                        my $newvaluestr;
                        if (@newvalues > 0) {
                            $newvaluestr = join(', ',@newvalues);
                        } else {
                            $newvaluestr = &mt('none');
                        }
                        if ($item eq 'default') {
                            $resulttext .= '<li>'.&mt("Updates for '[_1]' set to: '[_2]'",$othertitle,$newvaluestr).'</li>';
                        } else {
                            $resulttext .= '<li>'.&mt("Updates for '[_1]' set to: '[_2]'",$usertypes->{$item},$newvaluestr).'</li>';
                        }
                    }
                } else {
                    my $newvalue;
                    if ($key eq 'run') {
                        $newvalue = $offon[$env{'form.autoupdate_run'}];
                    } else {
                        $newvalue = $offon[$env{'form.'.$key}];
                    }
                    $resulttext .= '<li>'.&mt("[_1] set to $newvalue",$title{$key}).'</li>';
                }
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = &mt('No changes made to autoupdates');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
	    &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    return $resulttext;
}

sub modify_autocreate {
    my ($dom,%domconfig) = @_;
    my ($resulttext,%changes,%currautocreate,%newvals,%autocreatehash);
    if (ref($domconfig{'autocreate'}) eq 'HASH') {
        foreach my $key (keys(%{$domconfig{'autocreate'}})) {
            $currautocreate{$key} = $domconfig{'autocreate'}{$key};
        }
    }
    my %title= ( xml => 'Auto-creation of courses in XML course description files',
                 req => 'Auto-creation of validated requests for official courses',
                 xmldc => 'Identity of course creator of courses from XML files',
               );
    my @types = ('xml','req');
    foreach my $item (@types) {
        $newvals{$item} = $env{'form.autocreate_'.$item};
        $newvals{$item} =~ s/\D//g;
        $newvals{$item} = 0 if ($newvals{$item} eq '');
    }
    $newvals{'xmldc'} = $env{'form.autocreate_xmldc'};
    my %domcoords = &get_active_dcs($dom);
    unless (exists($domcoords{$newvals{'xmldc'}})) {
        $newvals{'xmldc'} = '';
    } 
    %autocreatehash =  (
                        autocreate => { xml => $newvals{'xml'},
                                        req => $newvals{'req'},
                                      }
                       );
    if ($newvals{'xmldc'} ne '') {
        $autocreatehash{'autocreate'}{'xmldc'} = $newvals{'xmldc'};
    }
    my $putresult = &Apache::lonnet::put_dom('configuration',\%autocreatehash,
                                             $dom);
    if ($putresult eq 'ok') {
        my @items = @types;
        if ($newvals{'xml'}) {
            push(@items,'xmldc');
        }
        foreach my $item (@items) {
            if (exists($currautocreate{$item})) {
                if ($currautocreate{$item} ne $newvals{$item}) {
                    $changes{$item} = 1;
                }
            } elsif ($newvals{$item}) {
                $changes{$item} = 1;
            }
        }
        if (keys(%changes) > 0) {
            my @offon = ('off','on'); 
            $resulttext = &mt('Changes made:').'<ul>';
            foreach my $item (@types) {
                if ($changes{$item}) {
                    my $newtxt = $offon[$newvals{$item}];
                    $resulttext .= '<li>'.&mt("$title{$item} set to [_1]$newtxt [_2]",'<b>','</b>').'</li>';
                }
            }
            if ($changes{'xmldc'}) {
                my ($dcname,$dcdom) = split(':',$newvals{'xmldc'});
                my $newtxt = &Apache::loncommon::plainname($dcname,$dcdom);
                $resulttext .= '<li>'.&mt("$title{'xmldc'} set to [_1]$newtxt [_2]",'<b>','</b>').'</li>'; 
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = &mt('No changes made to auto-creation settings');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
            &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    return $resulttext;
}

sub modify_directorysrch {
    my ($dom,%domconfig) = @_;
    my ($resulttext,%changes);
    my %currdirsrch;
    if (ref($domconfig{'directorysrch'}) eq 'HASH') {
        foreach my $key (keys(%{$domconfig{'directorysrch'}})) {
            $currdirsrch{$key} = $domconfig{'directorysrch'}{$key};
        }
    }
    my %title = ( available => 'Directory search available',
                  localonly => 'Other domains can search',
                  searchby => 'Search types',
                  searchtypes => 'Search latitude');
    my @offon = ('off','on');
    my @otherdoms = ('Yes','No');

    my @searchtypes = &Apache::loncommon::get_env_multiple('form.searchtypes');  
    my @cansearch = &Apache::loncommon::get_env_multiple('form.cansearch');
    my @searchby = &Apache::loncommon::get_env_multiple('form.searchby');

    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
    if (keys(%{$usertypes}) == 0) {
        @cansearch = ('default');
    } else {
        if (ref($currdirsrch{'cansearch'}) eq 'ARRAY') {
            foreach my $type (@{$currdirsrch{'cansearch'}}) {
                if (!grep(/^\Q$type\E$/,@cansearch)) {
                    push(@{$changes{'cansearch'}},$type);
                }
            }
            foreach my $type (@cansearch) {
                if (!grep(/^\Q$type\E$/,@{$currdirsrch{'cansearch'}})) {
                    push(@{$changes{'cansearch'}},$type);
                }
            }
        } else {
            push(@{$changes{'cansearch'}},@cansearch);
        }
    }

    if (ref($currdirsrch{'searchby'}) eq 'ARRAY') {
        foreach my $by (@{$currdirsrch{'searchby'}}) {
            if (!grep(/^\Q$by\E$/,@searchby)) {
                push(@{$changes{'searchby'}},$by);
            }
        }
        foreach my $by (@searchby) {
            if (!grep(/^\Q$by\E$/,@{$currdirsrch{'searchby'}})) {
                push(@{$changes{'searchby'}},$by);
            }
        }
    } else {
        push(@{$changes{'searchby'}},@searchby);
    }

    if (ref($currdirsrch{'searchtypes'}) eq 'ARRAY') {
        foreach my $type (@{$currdirsrch{'searchtypes'}}) {
            if (!grep(/^\Q$type\E$/,@searchtypes)) {
                push(@{$changes{'searchtypes'}},$type);
            }
        }
        foreach my $type (@searchtypes) {
            if (!grep(/^\Q$type\E$/,@{$currdirsrch{'searchtypes'}})) {
                push(@{$changes{'searchtypes'}},$type);
            }
        }
    } else {
        if (exists($currdirsrch{'searchtypes'})) {
            foreach my $type (@searchtypes) {  
                if ($type ne $currdirsrch{'searchtypes'}) { 
                    push(@{$changes{'searchtypes'}},$type);
                }
            }
            if (!grep(/^\Q$currdirsrch{'searchtypes'}\E/,@searchtypes)) {
                push(@{$changes{'searchtypes'}},$currdirsrch{'searchtypes'});
            }   
        } else {
            push(@{$changes{'searchtypes'}},@searchtypes); 
        }
    }

    my %dirsrch_hash =  (
            directorysrch => { available => $env{'form.dirsrch_available'},
                               cansearch => \@cansearch,
                               localonly => $env{'form.dirsrch_localonly'},
                               searchby => \@searchby,
                               searchtypes => \@searchtypes,
                             }
            );
    my $putresult = &Apache::lonnet::put_dom('configuration',\%dirsrch_hash,
                                             $dom);
    if ($putresult eq 'ok') {
        if (exists($currdirsrch{'available'})) {
             if ($currdirsrch{'available'} ne $env{'form.dirsrch_available'}) {
                 $changes{'available'} = 1;
             }
        } else {
            if ($env{'form.dirsrch_available'} eq '1') {
                $changes{'available'} = 1;
            }
        }
        if (exists($currdirsrch{'localonly'})) {
             if ($currdirsrch{'localonly'} ne $env{'form.dirsrch_localonly'}) {
                 $changes{'localonly'} = 1;
             }
        } else {
            if ($env{'form.dirsrch_localonly'} eq '1') {
                $changes{'localonly'} = 1;
            }
        }
        if (keys(%changes) > 0) {
            $resulttext = &mt('Changes made:').'<ul>';
            if ($changes{'available'}) {
                $resulttext .= '<li>'.&mt("$title{'available'} set to: $offon[$env{'form.dirsrch_available'}]").'</li>';
            }
            if ($changes{'localonly'}) {
                $resulttext .= '<li>'.&mt("$title{'localonly'} set to: $otherdoms[$env{'form.dirsrch_localonly'}]").'</li>';
            }

            if (ref($changes{'cansearch'}) eq 'ARRAY') {
                my $chgtext;
                if (ref($usertypes) eq 'HASH') {
                    if (keys(%{$usertypes}) > 0) {
                        foreach my $type (@{$types}) {
                            if (grep(/^\Q$type\E$/,@cansearch)) {
                                $chgtext .= $usertypes->{$type}.'; ';
                            }
                        }
                        if (grep(/^default$/,@cansearch)) {
                            $chgtext .= $othertitle;
                        } else {
                            $chgtext =~ s/\; $//;
                        }
                        $resulttext .= '<li>'.&mt("Users from domain '<span class=\"LC_cusr_emph\">[_1]</span>' permitted to search the institutional directory set to: [_2]",$dom,$chgtext).'</li>';
                    }
                }
            }
            if (ref($changes{'searchby'}) eq 'ARRAY') {
                my ($searchtitles,$titleorder) = &sorted_searchtitles();
                my $chgtext;
                foreach my $type (@{$titleorder}) {
                    if (grep(/^\Q$type\E$/,@searchby)) {
                        if (defined($searchtitles->{$type})) {
                            $chgtext .= $searchtitles->{$type}.'; ';
                        }
                    }
                }
                $chgtext =~ s/\; $//;
                $resulttext .= '<li>'.&mt("$title{'searchby'} set to: [_1]",$chgtext).'</li>';
            }
            if (ref($changes{'searchtypes'}) eq 'ARRAY') {
                my ($srchtypes_desc,$srchtypeorder) = &sorted_searchtypes(); 
                my $chgtext;
                foreach my $type (@{$srchtypeorder}) {
                    if (grep(/^\Q$type\E$/,@searchtypes)) {
                        if (defined($srchtypes_desc->{$type})) {
                            $chgtext .= $srchtypes_desc->{$type}.'; ';
                        }
                    }
                }
                $chgtext =~ s/\; $//;
                $resulttext .= '<li>'.&mt("$title{'searchtypes'} set to: \"[_1]\"",$chgtext).'</li>';
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = &mt('No changes made to institution directory search settings');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
                      &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    return $resulttext;
}

sub modify_contacts {
    my ($dom,%domconfig) = @_;
    my ($resulttext,%currsetting,%newsetting,%changes,%contacts_hash);
    if (ref($domconfig{'contacts'}) eq 'HASH') {
        foreach my $key (keys(%{$domconfig{'contacts'}})) {
            $currsetting{$key} = $domconfig{'contacts'}{$key};
        }
    }
    my (%others,%to,%bcc);
    my @contacts = ('supportemail','adminemail');
    my @mailings = ('errormail','packagesmail','helpdeskmail','lonstatusmail',
                    'requestsmail');
    foreach my $type (@mailings) {
        @{$newsetting{$type}} = 
            &Apache::loncommon::get_env_multiple('form.'.$type);
        foreach my $item (@contacts) {
            if (grep(/^\Q$item\E$/,@{$newsetting{$type}})) {
                $contacts_hash{contacts}{$type}{$item} = 1;
            } else {
                $contacts_hash{contacts}{$type}{$item} = 0;
            }
        }  
        $others{$type} = $env{'form.'.$type.'_others'};
        $contacts_hash{contacts}{$type}{'others'} = $others{$type};
        if ($type eq 'helpdeskmail') {
            $bcc{$type} = $env{'form.'.$type.'_bcc'};
            $contacts_hash{contacts}{$type}{'bcc'} = $bcc{$type};
        }
    }
    foreach my $item (@contacts) {
        $to{$item} = $env{'form.'.$item};
        $contacts_hash{'contacts'}{$item} = $to{$item};
    }
    if (keys(%currsetting) > 0) {
        foreach my $item (@contacts) {
            if ($to{$item} ne $currsetting{$item}) {
                $changes{$item} = 1;
            }
        }
        foreach my $type (@mailings) {
            foreach my $item (@contacts) {
                if (ref($currsetting{$type}) eq 'HASH') {
                    if ($currsetting{$type}{$item} ne $contacts_hash{contacts}{$type}{$item}) {
                        push(@{$changes{$type}},$item);
                    }
                } else {
                    push(@{$changes{$type}},@{$newsetting{$type}});
                }
            }
            if ($others{$type} ne $currsetting{$type}{'others'}) {
                push(@{$changes{$type}},'others');
            }
            if ($type eq 'helpdeskmail') {   
                if ($bcc{$type} ne $currsetting{$type}{'bcc'}) {
                    push(@{$changes{$type}},'bcc'); 
                }
            }
        }
    } else {
        my %default;
        $default{'supportemail'} = $Apache::lonnet::perlvar{'lonSupportEMail'};
        $default{'adminemail'} = $Apache::lonnet::perlvar{'lonAdmEMail'};
        $default{'errormail'} = 'adminemail';
        $default{'packagesmail'} = 'adminemail';
        $default{'helpdeskmail'} = 'supportemail';
        $default{'lonstatusmail'} = 'adminemail';
        $default{'requestsmail'} = 'adminemail';
        foreach my $item (@contacts) {
           if ($to{$item} ne $default{$item}) {
              $changes{$item} = 1;
           } 
        }
        foreach my $type (@mailings) {
            if ((@{$newsetting{$type}} != 1) || ($newsetting{$type}[0] ne $default{$type})) {
               
                push(@{$changes{$type}},@{$newsetting{$type}});
            }
            if ($others{$type} ne '') {
                push(@{$changes{$type}},'others');
            }
            if ($type eq 'helpdeskmail') {
                if ($bcc{$type} ne '') {
                    push(@{$changes{$type}},'bcc');
                }
            }
        }
    }
    my $putresult = &Apache::lonnet::put_dom('configuration',\%contacts_hash,
                                             $dom);
    if ($putresult eq 'ok') {
        if (keys(%changes) > 0) {
            my ($titles,$short_titles)  = &contact_titles();
            $resulttext = &mt('Changes made:').'<ul>';
            foreach my $item (@contacts) {
                if ($changes{$item}) {
                    $resulttext .= '<li>'.$titles->{$item}.
                                    &mt(' set to: ').
                                    '<span class="LC_cusr_emph">'.
                                    $to{$item}.'</span></li>';
                }
            }
            foreach my $type (@mailings) {
                if (ref($changes{$type}) eq 'ARRAY') {
                    $resulttext .= '<li>'.$titles->{$type}.': ';
                    my @text;
                    foreach my $item (@{$newsetting{$type}}) {
                        push(@text,$short_titles->{$item});
                    }
                    if ($others{$type} ne '') {
                        push(@text,$others{$type});
                    }
                    $resulttext .= '<span class="LC_cusr_emph">'.
                                   join(', ',@text).'</span>';
                    if ($type eq 'helpdeskmail') {
                        if ($bcc{$type} ne '') {
                            $resulttext .= '&nbsp;'.&mt('with Bcc to').': <span class="LC_cusr_emph">'.$bcc{$type}.'</span>';
                        }
                    }
                    $resulttext .= '</li>';
                }
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = &mt('No changes made to contact information');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
            &mt('An error occurred: [_1].',$putresult).'</span>';
    }
    return $resulttext;
}

sub modify_usercreation {
    my ($dom,%domconfig) = @_;
    my ($resulttext,%curr_usercreation,%changes,%authallowed,%cancreate);
    my $warningmsg;
    if (ref($domconfig{'usercreation'}) eq 'HASH') {
        foreach my $key (keys(%{$domconfig{'usercreation'}})) {
            $curr_usercreation{$key} = $domconfig{'usercreation'}{$key};
        }
    }
    my @username_rule = &Apache::loncommon::get_env_multiple('form.username_rule');
    my @id_rule = &Apache::loncommon::get_env_multiple('form.id_rule');
    my @email_rule = &Apache::loncommon::get_env_multiple('form.email_rule');
    my @contexts = ('author','course','requestcrs','selfcreate');
    foreach my $item(@contexts) {
        if ($item eq 'selfcreate') {
            @{$cancreate{$item}} = &Apache::loncommon::get_env_multiple('form.can_createuser_'.$item);
            my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
            if (!((($domdefaults{'auth_def'} =~/^krb/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth'))) {
                if (ref($cancreate{$item}) eq 'ARRAY') { 
                    if (grep(/^login$/,@{$cancreate{$item}})) {
                        $warningmsg = &mt('Although account creation has been set to be available for institutional logins, currently default authentication in this domain has not been set to support this.').' '.&mt('You need to set the default authentication type to Kerberos 4 or 5 (with a Kerberos domain specified), or to Local authentication, if the localauth module has been customized in your domain to authenticate institutional logins.');   
                    }
                }
            }
        } else {
            $cancreate{$item} = $env{'form.can_createuser_'.$item};
        }
    }
    my ($othertitle,$usertypes,$types) = 
        &Apache::loncommon::sorted_inst_types($dom);
    if (ref($types) eq 'ARRAY') {
        if (@{$types} > 0) {
            @{$cancreate{'statustocreate'}} = 
                &Apache::loncommon::get_env_multiple('form.statustocreate');
        } else {
            @{$cancreate{'statustocreate'}} = ();
        }
        push(@contexts,'statustocreate');
    }
    if (ref($curr_usercreation{'cancreate'}) eq 'HASH') {
        foreach my $item (@contexts) {
            if (($item eq 'selfcreate') || ($item eq 'statustocreate')) {
                if (ref($curr_usercreation{'cancreate'}{$item}) eq 'ARRAY') {
                    foreach my $curr (@{$curr_usercreation{'cancreate'}{$item}}) {
                        if (ref($cancreate{$item}) eq 'ARRAY') {
                            if (!grep(/^$curr$/,@{$cancreate{$item}})) {
                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
                                    push(@{$changes{'cancreate'}},$item);
                                }
                            }
                        }
                    }
                } else {
                    if ($curr_usercreation{'cancreate'}{$item} eq '') {
                        if (@{$cancreate{$item}} > 0) {
                            if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
                                push(@{$changes{'cancreate'}},$item);
                            }
                        }
                    } else {
                        if ($curr_usercreation{'cancreate'}{$item} eq 'any') {
                            if (@{$cancreate{$item}} < 3) {
                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
                                    push(@{$changes{'cancreate'}},$item);
                                }
                            }
                        } elsif ($curr_usercreation{'cancreate'}{$item} eq 'none') {
                            if (@{$cancreate{$item}} > 0) {
                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
                                    push(@{$changes{'cancreate'}},$item);
                                }
                            }
                        } elsif (!grep(/^$curr_usercreation{'cancreate'}{$item}$/,@{$cancreate{$item}})) {
                            if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
                                push(@{$changes{'cancreate'}},$item);
                            }
                        }
                    }
                }
                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
                    foreach my $type (@{$cancreate{$item}}) {
                        if (ref($curr_usercreation{'cancreate'}{$item}) eq 'ARRAY') {
                            if (!grep(/^$type$/,@{$curr_usercreation{'cancreate'}{$item}})) {
                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
                                    push(@{$changes{'cancreate'}},$item);
                                }
                            }
                        } elsif (($curr_usercreation{'cancreate'}{$item} ne 'any') &&
                                 ($curr_usercreation{'cancreate'}{$item} ne 'none')) {
                            if ($curr_usercreation{'cancreate'}{$item} ne $type) {
                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
                                    push(@{$changes{'cancreate'}},$item);
                                }
                            }
                        }
                    }
                }
            } else {
                if ($curr_usercreation{'cancreate'}{$item} ne $cancreate{$item}) {
                    push(@{$changes{'cancreate'}},$item);
                }
            }
        }
    } elsif (ref($curr_usercreation{'cancreate'}) eq 'ARRAY') {
        foreach my $item (@contexts) {
            if (!grep(/^\Q$item\E$/,@{$curr_usercreation{'cancreate'}})) {
                if ($cancreate{$item} ne 'any') {
                    push(@{$changes{'cancreate'}},$item);
                }
            } else {
                if ($cancreate{$item} ne 'none') {
                    push(@{$changes{'cancreate'}},$item);
                }
            }
        }
    } else {
        foreach my $item (@contexts)  {
            push(@{$changes{'cancreate'}},$item);
        }
    }

    if (ref($curr_usercreation{'username_rule'}) eq 'ARRAY') {
        foreach my $type (@{$curr_usercreation{'username_rule'}}) {
            if (!grep(/^\Q$type\E$/,@username_rule)) {
                push(@{$changes{'username_rule'}},$type);
            }
        }
        foreach my $type (@username_rule) {
            if (!grep(/^\Q$type\E$/,@{$curr_usercreation{'username_rule'}})) {
                push(@{$changes{'username_rule'}},$type);
            }
        }
    } else {
        push(@{$changes{'username_rule'}},@username_rule);
    }

    if (ref($curr_usercreation{'id_rule'}) eq 'ARRAY') {
        foreach my $type (@{$curr_usercreation{'id_rule'}}) {
            if (!grep(/^\Q$type\E$/,@id_rule)) {
                push(@{$changes{'id_rule'}},$type);
            }
        }
        foreach my $type (@id_rule) {
            if (!grep(/^\Q$type\E$/,@{$curr_usercreation{'id_rule'}})) {
                push(@{$changes{'id_rule'}},$type);
            }
        }
    } else {
        push(@{$changes{'id_rule'}},@id_rule);
    }

    if (ref($curr_usercreation{'email_rule'}) eq 'ARRAY') {
        foreach my $type (@{$curr_usercreation{'email_rule'}}) {
            if (!grep(/^\Q$type\E$/,@email_rule)) {
                push(@{$changes{'email_rule'}},$type);
            }
        }
        foreach my $type (@email_rule) {
            if (!grep(/^\Q$type\E$/,@{$curr_usercreation{'email_rule'}})) {
                push(@{$changes{'email_rule'}},$type);
            }
        }
    } else {
        push(@{$changes{'email_rule'}},@email_rule);
    }

    my @authen_contexts = ('author','course','domain');
    my @authtypes = ('int','krb4','krb5','loc');
    my %authhash;
    foreach my $item (@authen_contexts) {
        my @authallowed =  &Apache::loncommon::get_env_multiple('form.'.$item.'_auth');
        foreach my $auth (@authtypes) {
            if (grep(/^\Q$auth\E$/,@authallowed)) {
                $authhash{$item}{$auth} = 1;
            } else {
                $authhash{$item}{$auth} = 0;
            }
        }
    }
    if (ref($curr_usercreation{'authtypes'}) eq 'HASH') {
        foreach my $item (@authen_contexts) {
            if (ref($curr_usercreation{'authtypes'}{$item}) eq 'HASH') {
                foreach my $auth (@authtypes) {
                    if ($authhash{$item}{$auth} ne $curr_usercreation{'authtypes'}{$item}{$auth}) {
                        push(@{$changes{'authtypes'}},$item);
                        last;
                    }
                }
            }
        }
    } else {
        foreach my $item (@authen_contexts) {
            push(@{$changes{'authtypes'}},$item);
        }
    }

    my %usercreation_hash =  (
            usercreation => {
                              cancreate     => \%cancreate,
                              username_rule => \@username_rule,
                              id_rule       => \@id_rule,
                              email_rule    => \@email_rule,
                              authtypes     => \%authhash,
                            }
            );

    my $putresult = &Apache::lonnet::put_dom('configuration',\%usercreation_hash,
                                             $dom);

    my %selfcreatetypes = (
                             sso   => 'users authenticated by institutional single sign on',
                             login => 'users authenticated by institutional log-in',
                             email => 'users who provide a valid e-mail address for use as the username',
                          );
    if ($putresult eq 'ok') {
        if (keys(%changes) > 0) {
            $resulttext = &mt('Changes made:').'<ul>';
            if (ref($changes{'cancreate'}) eq 'ARRAY') {
                my %lt = &usercreation_types();
                foreach my $type (@{$changes{'cancreate'}}) {
                    my $chgtext;
                    unless ($type eq 'statustocreate') {
                        $chgtext = $lt{$type}.', ';
                    }
                    if ($type eq 'selfcreate') {
                        if (@{$cancreate{$type}} == 0) {
                            $chgtext .= &mt('creation of a new user account is not permitted.');
                        } else {
                            $chgtext .= &mt('creation of a new account is permitted for:').'<ul>';
                            foreach my $case (@{$cancreate{$type}}) {
                                $chgtext .= '<li>'.$selfcreatetypes{$case}.'</li>';
                            }
                            $chgtext .= '</ul>';
                            if (ref($cancreate{$type}) eq 'ARRAY') {
                                if (grep(/^(login|sso)$/,@{$cancreate{$type}})) {
                                    if (ref($cancreate{'statustocreate'}) eq 'ARRAY') {
                                        if (@{$cancreate{'statustocreate'}} == 0) {
                                            $chgtext .= '<br /><span class="LC_warning">'.&mt("However, no institutional affiliations (including 'other') are currently permitted to create accounts.").'</span>';
                                        }
                                    }
                                }
                            }
                        }
                    } elsif ($type eq 'statustocreate') {
                        if ((ref($cancreate{'selfcreate'}) eq 'ARRAY') &&
                            (ref($cancreate{'statustocreate'}) eq 'ARRAY')) {
                            if (@{$cancreate{'selfcreate'}} > 0) {
                                if (@{$cancreate{'statustocreate'}} == 0) {

                                    $chgtext .= &mt("Institutional affiliations permitted to create accounts set to 'None'.");
                                    if (!grep(/^email$/,@{$cancreate{'selfcreate'}})) {
                                        $chgtext .= '<br /><span class="LC_warning">'.&mt("However, no institutional affiliations (including 'other') are currently permitted to create accounts.").'</span>';
                                    } 
                                } elsif (ref($usertypes) eq 'HASH') {
                                    if (grep(/^(login|sso)$/,@{$cancreate{'selfcreate'}})) {
                                        $chgtext .= &mt('Creation of a new account for an institutional user is restricted to the following institutional affiliation(s):');
                                    } else {
                                        $chgtext .= &mt('Institutional affiliations permitted to create accounts with institutional authentication were set as follows:');
                                    }
                                    $chgtext .= '<ul>';
                                    foreach my $case (@{$cancreate{$type}}) {
                                        if ($case eq 'default') {
                                            $chgtext .= '<li>'.$othertitle.'</li>';
                                        } else {
                                            $chgtext .= '<li>'.$usertypes->{$case}.'</li>';
                                        }
                                    }
                                    $chgtext .= '</ul>';
                                    if (!grep(/^(login|sso)$/,@{$cancreate{'selfcreate'}})) {
                                        $chgtext .= '<br /><span class="LC_warning">'.&mt('However, users authenticated by institutional login/single sign on are not currently permitted to create accounts.').'</span>';
                                    }
                                }
                            } else {
                                if (@{$cancreate{$type}} == 0) {
                                    $chgtext .= &mt("Institutional affiliations permitted to create accounts were set to 'none'.");
                                } else {
                                    $chgtext .= &mt('Although institutional affiliations permitted to create accounts were changed, self creation of accounts is not currently permitted for any authentication types.');
                                }
                            }
                        }
                    } else {
                        if ($cancreate{$type} eq 'none') {
                            $chgtext .= &mt('creation of new users is not permitted, except by a Domain Coordinator.');
                        } elsif ($cancreate{$type} eq 'any') {
                            $chgtext .= &mt('creation of new users is permitted for both institutional and non-institutional usernames.');
                        } elsif ($cancreate{$type} eq 'official') {
                            $chgtext .= &mt('creation of new users is only permitted for institutional usernames.');
                        } elsif ($cancreate{$type} eq 'unofficial') {
                            $chgtext .= &mt('creation of new users is only permitted for non-institutional usernames.');
                        }
                    }
                    $resulttext .= '<li>'.$chgtext.'</li>';
                }
            }
            if (ref($changes{'username_rule'}) eq 'ARRAY') {
                my ($rules,$ruleorder) = 
                    &Apache::lonnet::inst_userrules($dom,'username');
                my $chgtext = '<ul>';
                foreach my $type (@username_rule) {
                    if (ref($rules->{$type}) eq 'HASH') {
                        $chgtext .= '<li>'.$rules->{$type}{'name'}.'</li>';
                    }
                }
                $chgtext .= '</ul>';
                if (@username_rule > 0) {
                    $resulttext .= '<li>'.&mt('Usernames with the following formats are restricted to verified users in the institutional directory: ').$chgtext.'</li>';     
                } else {
                    $resulttext .= '<li>'.&mt('There are now no username formats restricted to verified users in the institutional directory.').'</li>'; 
                }
            }
            if (ref($changes{'id_rule'}) eq 'ARRAY') {
                my ($idrules,$idruleorder) = 
                    &Apache::lonnet::inst_userrules($dom,'id');
                my $chgtext = '<ul>';
                foreach my $type (@id_rule) {
                    if (ref($idrules->{$type}) eq 'HASH') {
                        $chgtext .= '<li>'.$idrules->{$type}{'name'}.'</li>';
                    }
                }
                $chgtext .= '</ul>';
                if (@id_rule > 0) {
                    $resulttext .= '<li>'.&mt('IDs with the following formats are restricted to verified users in the institutional directory: ').$chgtext.'</li>';
                } else {
                    $resulttext .= '<li>'.&mt('There are now no ID formats restricted to verified users in the institutional directory.').'</li>';
                }
            }
            if (ref($changes{'email_rule'}) eq 'ARRAY') {
                my ($emailrules,$emailruleorder) =
                    &Apache::lonnet::inst_userrules($dom,'email');
                my $chgtext = '<ul>';
                foreach my $type (@email_rule) {
                    if (ref($emailrules->{$type}) eq 'HASH') {
                        $chgtext .= '<li>'.$emailrules->{$type}{'name'}.'</li>';
                    }
                }
                $chgtext .= '</ul>';
                if (@email_rule > 0) {
                    $resulttext .= '<li>'.&mt('Accounts may not be created by users self-enrolling with e-mail addresses of the following types: ').$chgtext.'</li>';
                } else {
                    $resulttext .= '<li>'.&mt('There are now no restrictions on e-mail addresses which may be used as a username when self-enrolling.').'</li>';
                }
            }

            my %authname = &authtype_names();
            my %context_title = &context_names();
            if (ref($changes{'authtypes'}) eq 'ARRAY') {
                my $chgtext = '<ul>';
                foreach my $type (@{$changes{'authtypes'}}) {
                    my @allowed;
                    $chgtext .= '<li><span class="LC_cusr_emph">'.$context_title{$type}.'</span> - '.&mt('assignable authentication types: ');
                    foreach my $auth (@authtypes) {
                        if ($authhash{$type}{$auth}) {
                            push(@allowed,$authname{$auth});
                        }
                    }
                    if (@allowed > 0) {
                        $chgtext .= join(', ',@allowed).'</li>';
                    } else {
                        $chgtext .= &mt('none').'</li>';
                    }
                }
                $chgtext .= '</ul>';
                $resulttext .= '<li>'.&mt('Authentication types available for assignment to new users').'<br />'.$chgtext;
                $resulttext .= '</li>';
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = &mt('No changes made to user creation settings');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
            &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    if ($warningmsg ne '') {
        $resulttext .= '<br /><span class="LC_warning">'.$warningmsg.'</span><br />';
    }
    return $resulttext;
}

sub modify_usermodification {
    my ($dom,%domconfig) = @_;
    my ($resulttext,%curr_usermodification,%changes);
    if (ref($domconfig{'usermodification'}) eq 'HASH') {
        foreach my $key (keys(%{$domconfig{'usermodification'}})) {
            $curr_usermodification{$key} = $domconfig{'usermodification'}{$key};
        }
    }
    my @contexts = ('author','course','selfcreate');
    my %context_title = (
                           author => 'In author context',
                           course => 'In course context',
                           selfcreate => 'When self creating account', 
                        );
    my @fields = ('lastname','firstname','middlename','generation',
                  'permanentemail','id');
    my %roles = (
                  author => ['ca','aa'],
                  course => ['st','ep','ta','in','cr'],
                );
    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
    if (ref($types) eq 'ARRAY') {
        push(@{$types},'default');
        $usertypes->{'default'} = $othertitle;
    }
    $roles{'selfcreate'} = $types;  
    my %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
    my %modifyhash;
    foreach my $context (@contexts) {
        foreach my $role (@{$roles{$context}}) {
            my @modifiable =  &Apache::loncommon::get_env_multiple('form.canmodify_'.$role);
            foreach my $item (@fields) {
                if (grep(/^\Q$item\E$/,@modifiable)) {
                    $modifyhash{$context}{$role}{$item} = 1;
                } else {
                    $modifyhash{$context}{$role}{$item} = 0;
                }
            }
        }
        if (ref($curr_usermodification{$context}) eq 'HASH') {
            foreach my $role (@{$roles{$context}}) {
                if (ref($curr_usermodification{$context}{$role}) eq 'HASH') {
                    foreach my $field (@fields) {
                        if ($modifyhash{$context}{$role}{$field} ne 
                                $curr_usermodification{$context}{$role}{$field}) {
                            push(@{$changes{$context}},$role);
                            last;
                        }
                    }
                }
            }
        } else {
            foreach my $context (@contexts) {
                foreach my $role (@{$roles{$context}}) {
                    push(@{$changes{$context}},$role);
                }
            }
        }
    }
    my %usermodification_hash =  (
                                   usermodification => \%modifyhash,
                                 );
    my $putresult = &Apache::lonnet::put_dom('configuration',
                                             \%usermodification_hash,$dom);
    if ($putresult eq 'ok') {
        if (keys(%changes) > 0) {
            $resulttext = &mt('Changes made: ').'<ul>';
            foreach my $context (@contexts) {
                if (ref($changes{$context}) eq 'ARRAY') {
                    $resulttext .= '<li>'.$context_title{$context}.':<ul>';
                    if (ref($changes{$context}) eq 'ARRAY') {
                        foreach my $role (@{$changes{$context}}) {
                            my $rolename;
                            if ($context eq 'selfcreate') {
                                $rolename = $role;
                                if (ref($usertypes) eq 'HASH') {
                                    if ($usertypes->{$role} ne '') {
                                        $rolename = $usertypes->{$role};
                                    }
                                }
                            } else {
                                if ($role eq 'cr') {
                                    $rolename = &mt('Custom');
                                } else {
                                    $rolename = &Apache::lonnet::plaintext($role);
                                }
                            }
                            my @modifiable;
                            if ($context eq 'selfcreate') {
                                $resulttext .= '<li><span class="LC_cusr_emph">'.&mt('Self-creation of account by users with status: [_1]',$rolename).'</span> - '.&mt('modifiable fields (if institutional data blank): ');
                            } else {
                                $resulttext .= '<li><span class="LC_cusr_emph">'.&mt('Target user with [_1] role',$rolename).'</span> - '.&mt('modifiable fields: ');
                            }
                            foreach my $field (@fields) {
                                if ($modifyhash{$context}{$role}{$field}) {
                                    push(@modifiable,$fieldtitles{$field});
                                }
                            }
                            if (@modifiable > 0) {
                                $resulttext .= join(', ',@modifiable);
                            } else {
                                $resulttext .= &mt('none'); 
                            }
                            $resulttext .= '</li>';
                        }
                        $resulttext .= '</ul></li>';
                    }
                }
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = &mt('No changes made to user modification settings');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
            &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    return $resulttext;
}

sub modify_defaults {
    my ($dom,$r) = @_;
    my ($resulttext,$mailmsgtxt,%newvalues,%changes,@errors);
    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
    my @items = ('auth_def','auth_arg_def','lang_def','timezone_def','datelocale_def','portal_def');
    my @authtypes = ('internal','krb4','krb5','localauth');
    foreach my $item (@items) {
        $newvalues{$item} = $env{'form.'.$item};
        if ($item eq 'auth_def') {
            if ($newvalues{$item} ne '') {
                if (!grep(/^\Q$newvalues{$item}\E$/,@authtypes)) {
                    push(@errors,$item);
                }
            }
        } elsif ($item eq 'lang_def') {
            if ($newvalues{$item} ne '') {
                if ($newvalues{$item} =~ /^(\w+)/) {
                    my $langcode = $1;
                    if ($langcode ne 'x_chef') {
                        if (code2language($langcode) eq '') {
                            push(@errors,$item);
                        }
                    }
                } else {
                    push(@errors,$item);
                }
            }
        } elsif ($item eq 'timezone_def') {
            if ($newvalues{$item} ne '') {
                if (!DateTime::TimeZone->is_valid_name($newvalues{$item})) {
                    push(@errors,$item);   
                }
            }
        } elsif ($item eq 'datelocale_def') {
            if ($newvalues{$item} ne '') {
                my @datelocale_ids = DateTime::Locale->ids();
                if (!grep(/^\Q$newvalues{$item}\E$/,@datelocale_ids)) {
                    push(@errors,$item);
                }
            }
        } elsif ($item eq 'portal_def') {
            if ($newvalues{$item} ne '') {
                unless ($newvalues{$item} =~ /^https?\:\/\/(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z]|[A-Za-z][A-Za-z0-9\-]*[A-Za-z0-9])\/?$/) {
                    push(@errors,$item);
                }
            }
        }
        if (grep(/^\Q$item\E$/,@errors)) {
            $newvalues{$item} = $domdefaults{$item};
        } elsif ($domdefaults{$item} ne $newvalues{$item}) {
            $changes{$item} = 1;
        }
        $domdefaults{$item} = $newvalues{$item};
    }
    my %defaults_hash = (
                         defaults => \%newvalues,
                        );
    my $title = &defaults_titles();
    my $putresult = &Apache::lonnet::put_dom('configuration',\%defaults_hash,
                                             $dom);
    if ($putresult eq 'ok') {
        if (keys(%changes) > 0) {
            $resulttext = &mt('Changes made:').'<ul>';
            my $version = $r->dir_config('lonVersion');
            my $mailmsgtext = "Changes made to domain settings in a LON-CAPA installation - domain: $dom (running version: $version) - dns_domain.tab needs to be updated with the following changes, to support legacy 2.4, 2.5 and 2.6 versions of LON-CAPA.\n\n";
            foreach my $item (sort(keys(%changes))) {
                my $value = $env{'form.'.$item};
                if ($value eq '') {
                    $value = &mt('none');
                } elsif ($item eq 'auth_def') {
                    my %authnames = &authtype_names();
                    my %shortauth = (
                             internal => 'int',
                             krb4 => 'krb4',
                             krb5 => 'krb5',
                             localauth  => 'loc',
                    );
                    $value = $authnames{$shortauth{$value}};
                }
                $resulttext .= '<li>'.&mt('[_1] set to "[_2]"',$title->{$item},$value).'</li>';
                $mailmsgtext .= "$title->{$item} set to $value\n";  
            }
            $resulttext .= '</ul>';
            $mailmsgtext .= "\n";
            my $cachetime = 24*60*60;
            &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);
            if ($changes{'auth_def'} || $changes{'auth_arg_def'} || $changes{'lang_def'} || $changes{'datelocale_def'}) {
                my $sysmail = $r->dir_config('lonSysEMail');
                &Apache::lonmsg::sendemail($sysmail,"LON-CAPA Domain Settings Change - $dom",$mailmsgtext);
            }
        } else {
            $resulttext = &mt('No changes made to default authentication/language/timezone settings');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
            &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    if (@errors > 0) {
        $resulttext .= '<br />'.&mt('The following were left unchanged because the values entered were invalid:');
        foreach my $item (@errors) {
            $resulttext .= ' "'.$title->{$item}.'",';
        }
        $resulttext =~ s/,$//;
    }
    return $resulttext;
}

sub modify_scantron {
    my ($r,$dom,$confname,%domconfig) = @_;
    my ($resulttext,%confhash,%changes,$errors);
    my $custom = 'custom.tab';
    my $default = 'default.tab';
    my $servadm = $r->dir_config('lonAdmEMail');
    my ($configuserok,$author_ok,$switchserver) = 
        &config_check($dom,$confname,$servadm);
    if ($env{'form.scantronformat.filename'} ne '') {
        my $error;
        if ($configuserok eq 'ok') {
            if ($switchserver) {
                $error = &mt("Upload of bubblesheet format file is not permitted to this server: [_1]",$switchserver);
            } else {
                if ($author_ok eq 'ok') {
                    my ($result,$scantronurl) =
                        &publishlogo($r,'upload','scantronformat',$dom,
                                     $confname,'scantron','','',$custom);
                    if ($result eq 'ok') {
                        $confhash{'scantron'}{'scantronformat'} = $scantronurl;
                        $changes{'scantronformat'} = 1;
                    } else {
                        $error = &mt("Upload of [_1] failed because an error occurred publishing the file in RES space. Error was: [_2].",$custom,$result);
                    }
                } else {
                    $error = &mt("Upload of [_1] failed because an author role could not be assigned to a Domain Configuration user ([_2]) in domain: [_3].  Error was: [_4].",$custom,$confname,$dom,$author_ok);
                }
            }
        } else {
            $error = &mt("Upload of [_1] failed because a Domain Configuration user ([_2]) could not be created in domain: [_3].  Error was: [_4].",$custom,$confname,$dom,$configuserok);
        }
        if ($error) {
            &Apache::lonnet::logthis($error);
            $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
        }
    }
    if (ref($domconfig{'scantron'}) eq 'HASH') {
        if ($domconfig{'scantron'}{'scantronformat'} ne '') {
            if ($env{'form.scantronformat_del'}) {
                $confhash{'scantron'}{'scantronformat'} = '';
                $changes{'scantronformat'} = 1;
            }
        }
    }
    if (keys(%confhash) > 0) {
        my $putresult = &Apache::lonnet::put_dom('configuration',\%confhash,
                                                 $dom);
        if ($putresult eq 'ok') {
            if (keys(%changes) > 0) {
                if (ref($confhash{'scantron'}) eq 'HASH') {
                    $resulttext = &mt('Changes made:').'<ul>';
                    if ($confhash{'scantron'}{'scantronformat'} eq '') {
                        $resulttext .= '<li>'.&mt('[_1] bubblesheet format file removed; [_2] file will be used for courses in this domain.',$custom,$default).'</li>';
                    } else {
                        $resulttext .= '<li>'.&mt('Custom bubblesheet format file ([_1]) uploaded for use with courses in this domain.',$custom).'</li>';
                    }
                    $resulttext .= '</ul>';
                } else {
                    $resulttext = &mt('Changes made to bubblesheet format file.');
                }
                $resulttext .= '</ul>';
                &Apache::loncommon::devalidate_domconfig_cache($dom);
            } else {
                $resulttext = &mt('No changes made to bubblesheet format file');
            }
        } else {
            $resulttext = '<span class="LC_error">'.
                &mt('An error occurred: [_1]',$putresult).'</span>';
        }
    } else {
        $resulttext = &mt('No changes made to bubblesheet format file'); 
    }
    if ($errors) {
        $resulttext .= &mt('The following errors occurred: ').'<ul>'.
                       $errors.'</ul>';
    }
    return $resulttext;
}

sub modify_coursecategories {
    my ($dom,%domconfig) = @_;
    my ($resulttext,%deletions,%reorderings,%needreordering,%adds,%changes,$errors,
        $cathash);
    my @deletecategory = &Apache::loncommon::get_env_multiple('form.deletecategory');
    if (ref($domconfig{'coursecategories'}) eq 'HASH') {
        $cathash = $domconfig{'coursecategories'}{'cats'};
        if ($domconfig{'coursecategories'}{'togglecats'} ne $env{'form.togglecats'}) {
            $changes{'togglecats'} = 1;
            $domconfig{'coursecategories'}{'togglecats'} = $env{'form.togglecats'};
        }
        if ($domconfig{'coursecategories'}{'categorize'} ne $env{'form.categorize'}) {
            $changes{'categorize'} = 1;
            $domconfig{'coursecategories'}{'categorize'} = $env{'form.categorize'};
        }
        if ($domconfig{'coursecategories'}{'togglecatscomm'} ne $env{'form.togglecatscomm'}) {
            $changes{'togglecatscomm'} = 1;
            $domconfig{'coursecategories'}{'togglecatscomm'} = $env{'form.togglecatscomm'};
        }
        if ($domconfig{'coursecategories'}{'categorizecomm'} ne $env{'form.categorizecomm'}) {
            $changes{'categorizecomm'} = 1;
            $domconfig{'coursecategories'}{'categorizecomm'} = $env{'form.categorizecomm'};
        }
    } else {
        $changes{'togglecats'} = 1;
        $changes{'categorize'} = 1;
        $changes{'togglecatscomm'} = 1;
        $changes{'categorizecomm'} = 1;
        $domconfig{'coursecategories'} = {
                                             togglecats => $env{'form.togglecats'},
                                             categorize => $env{'form.categorize'},
                                             togglecatscomm => $env{'form.togglecatscomm'},
                                             categorizecomm => $env{'form.categorizecomm'},
                                         };
    }
    if (ref($cathash) eq 'HASH') {
        if (($domconfig{'coursecategories'}{'cats'}{'instcode::0'} ne '')  && ($env{'form.instcode'} == 0)) {
            push (@deletecategory,'instcode::0');
        }
        if (($domconfig{'coursecategories'}{'cats'}{'communities::0'} ne '')  && ($env{'form.communities'} == 0)) {
            push(@deletecategory,'communities::0');
        }
    }
    my (@predelcats,@predeltrails,%predelallitems,%sort_by_deltrail);
    if (ref($cathash) eq 'HASH') {
        if (@deletecategory > 0) {
            #FIXME Need to remove category from all courses using a deleted category 
            &Apache::loncommon::extract_categories($cathash,\@predelcats,\@predeltrails,\%predelallitems);
            foreach my $item (@deletecategory) {
                if ($domconfig{'coursecategories'}{'cats'}{$item} ne '') {
                    delete($domconfig{'coursecategories'}{'cats'}{$item});
                    $deletions{$item} = 1;
                    &recurse_cat_deletes($item,$cathash,\%deletions);
                }
            }
        }
        foreach my $item (keys(%{$cathash})) {
            my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$item);
            if ($cathash->{$item} ne $env{'form.'.$item}) {
                $reorderings{$item} = 1;
                $domconfig{'coursecategories'}{'cats'}{$item} = $env{'form.'.$item};
            }
            if ($env{'form.addcategory_name_'.$item} ne '') {
                my $newcat = $env{'form.addcategory_name_'.$item};
                my $newdepth = $depth+1;
                my $newitem = &escape($newcat).':'.&escape($cat).':'.$newdepth;
                $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.addcategory_pos_'.$item};
                $adds{$newitem} = 1; 
            }
            if ($env{'form.subcat_'.$item} ne '') {
                my $newcat = $env{'form.subcat_'.$item};
                my $newdepth = $depth+1;
                my $newitem = &escape($newcat).':'.&escape($cat).':'.$newdepth;
                $domconfig{'coursecategories'}{'cats'}{$newitem} = 0;
                $adds{$newitem} = 1;
            }
        }
    }
    if ($env{'form.instcode'} eq '1') {
        if (ref($cathash) eq 'HASH') {
            my $newitem = 'instcode::0';
            if ($cathash->{$newitem} eq '') {  
                $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.instcode_pos'};
                $adds{$newitem} = 1;
            }
        } else {
            my $newitem = 'instcode::0';
            $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.instcode_pos'};
            $adds{$newitem} = 1;
        }
    }
    if ($env{'form.communities'} eq '1') {
        if (ref($cathash) eq 'HASH') {
            my $newitem = 'communities::0';
            if ($cathash->{$newitem} eq '') {
                $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.communities_pos'};
                $adds{$newitem} = 1;
            }
        } else {
            my $newitem = 'communities::0';
            $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.communities_pos'};
            $adds{$newitem} = 1;
        }
    }
    if ($env{'form.addcategory_name'} ne '') {
        if (($env{'form.addcategory_name'} ne 'instcode') &&
            ($env{'form.addcategory_name'} ne 'communities')) {
            my $newitem = &escape($env{'form.addcategory_name'}).'::0';
            $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.addcategory_pos'};
            $adds{$newitem} = 1;
        }
    }
    my $putresult;
    if ((keys(%deletions) > 0) || (keys(%reorderings) > 0) || (keys(%adds) > 0)) {
        if (keys(%deletions) > 0) {
            foreach my $key (keys(%deletions)) {
                if ($predelallitems{$key} ne '') {
                    $sort_by_deltrail{$predelallitems{$key}} = $predeltrails[$predelallitems{$key}];
                }
            }
        }
        my (@chkcats,@chktrails,%chkallitems);
        &Apache::loncommon::extract_categories($domconfig{'coursecategories'}{'cats'},\@chkcats,\@chktrails,\%chkallitems);
        if (ref($chkcats[0]) eq 'ARRAY') {
            my $depth = 0;
            my $chg = 0;
            for (my $i=0; $i<@{$chkcats[0]}; $i++) {
                my $name = $chkcats[0][$i];
                my $item;
                if ($name eq '') {
                    $chg ++;
                } else {
                    $item = &escape($name).'::0';
                    if ($chg) {
                        $domconfig{'coursecategories'}{'cats'}{$item} -= $chg;
                    }
                    $depth ++; 
                    &recurse_check(\@chkcats,$domconfig{'coursecategories'}{'cats'},$depth,$name);
                    $depth --;
                }
            }
        }
    }
    if ((keys(%changes) > 0) || (keys(%deletions) > 0) || (keys(%reorderings) > 0) || (keys(%adds) > 0)) {
        $putresult = &Apache::lonnet::put_dom('configuration',\%domconfig,$dom);
        if ($putresult eq 'ok') {
            my %title = (
                         togglecats     => 'Show/Hide a course in catalog',
                         categorize     => 'Assign a category to a course',
                         togglecatscomm => 'Show/Hide a community in catalog',
                         categorizecomm => 'Assign a category to a community',
                        );
            my %level = (
                         dom  => 'set in Domain ("Modify Course/Community")',
                         crs  => 'set in Course ("Course Configuration")',
                         comm => 'set in Community ("Community Configuration")',
                        );
            $resulttext = &mt('Changes made:').'<ul>';
            if ($changes{'togglecats'}) {
                $resulttext .= '<li>'.&mt("$title{'togglecats'} $level{$env{'form.togglecats'}}").'</li>'; 
            }
            if ($changes{'categorize'}) {
                $resulttext .= '<li>'.&mt("$title{'categorize'} $level{$env{'form.categorize'}}").'</li>';
            }
            if ($changes{'togglecatscomm'}) {
                $resulttext .= '<li>'.&mt("$title{'togglecatscomm'} $level{$env{'form.togglecatscomm'}}").'</li>';
            }
            if ($changes{'categorizecomm'}) {
                $resulttext .= '<li>'.&mt("$title{'categorizecomm'} $level{$env{'form.categorizecomm'}}").'</li>';
            }
            if ((keys(%deletions) > 0) || (keys(%reorderings) > 0) || (keys(%adds) > 0)) {
                my $cathash;
                if (ref($domconfig{'coursecategories'}) eq 'HASH') {
                    $cathash = $domconfig{'coursecategories'}{'cats'};
                } else {
                    $cathash = {};
                } 
                my (@cats,@trails,%allitems);
                    &Apache::loncommon::extract_categories($cathash,\@cats,\@trails,\%allitems);
                if (keys(%deletions) > 0) {
                    $resulttext .= '<li>'.&mt('Deleted categories:').'<ul>';
                    foreach my $predeltrail (sort {$a <=> $b } (keys(%sort_by_deltrail))) { 
                        $resulttext .= '<li>'.$predeltrails[$predeltrail].'</li>';
                    }
                    $resulttext .= '</ul></li>';
                }
                if (keys(%reorderings) > 0) {
                    my %sort_by_trail;
                    $resulttext .= '<li>'.&mt('Reordered categories:').'<ul>';
                    foreach my $key (keys(%reorderings)) {
                        if ($allitems{$key} ne '') {
                            $sort_by_trail{$allitems{$key}} = $trails[$allitems{$key}];
                        }
                    }
                    foreach my $trail (sort {$a <=> $b } (keys(%sort_by_trail))) {
                        $resulttext .= '<li>'.$trails[$trail].'</li>';
                    }
                    $resulttext .= '</ul></li>';
                }
                if (keys(%adds) > 0) {
                    my %sort_by_trail;
                    $resulttext .= '<li>'.&mt('Added categories:').'<ul>';
                    foreach my $key (keys(%adds)) {
                        if ($allitems{$key} ne '') {
                            $sort_by_trail{$allitems{$key}} = $trails[$allitems{$key}];
                        }
                    }
                    foreach my $trail (sort {$a <=> $b } (keys(%sort_by_trail))) {
                        $resulttext .= '<li>'.$trails[$trail].'</li>';
                    }
                    $resulttext .= '</ul></li>';
                }
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = '<span class="LC_error">'.
                          &mt('An error occurred: [_1]',$putresult).'</span>';
        }
    } else {
        $resulttext = &mt('No changes made to course and community categories');
    }
    return $resulttext;
}

sub modify_serverstatuses {
    my ($dom,%domconfig) = @_;
    my ($resulttext,%changes,%currserverstatus,%newserverstatus);
    if (ref($domconfig{'serverstatuses'}) eq 'HASH') {
        %currserverstatus = %{$domconfig{'serverstatuses'}};
    }
    my @pages = &serverstatus_pages();
    foreach my $type (@pages) {
        $newserverstatus{$type}{'namedusers'} = '';
        $newserverstatus{$type}{'machines'} = '';
        if (defined($env{'form.'.$type.'_namedusers'})) {
            my @users = split(/,/,$env{'form.'.$type.'_namedusers'});
            my @okusers;
            foreach my $user (@users) {
                my ($uname,$udom) = split(/:/,$user);
                if (($udom =~ /^$match_domain$/) &&   
                    (&Apache::lonnet::domain($udom)) &&
                    ($uname =~ /^$match_username$/)) {
                    if (!grep(/^\Q$user\E/,@okusers)) {
                        push(@okusers,$user);
                    }
                }
            }
            if (@okusers > 0) {
                 @okusers = sort(@okusers);
                 $newserverstatus{$type}{'namedusers'} = join(',',@okusers);
            }
        }
        if (defined($env{'form.'.$type.'_machines'})) {
            my @machines = split(/,/,$env{'form.'.$type.'_machines'});
            my @okmachines;
            foreach my $ip (@machines) {
                my @parts = split(/\./,$ip);
                next if (@parts < 4);
                my $badip = 0;
                for (my $i=0; $i<4; $i++) {
                    if (!(($parts[$i] >= 0) && ($parts[$i] <= 255))) {
                        $badip = 1;
                        last;
                    }
                }
                if (!$badip) {
                    push(@okmachines,$ip);     
                }
            }
            @okmachines = sort(@okmachines);
            $newserverstatus{$type}{'machines'} = join(',',@okmachines);
        }
    }
    my %serverstatushash =  (
                                serverstatuses => \%newserverstatus,
                            );
    foreach my $type (@pages) {
        foreach my $setting ('namedusers','machines') {
            my (@current,@new);
            if (ref($currserverstatus{$type}) eq 'HASH') {
                if ($currserverstatus{$type}{$setting} ne '') { 
                    @current = split(/,/,$currserverstatus{$type}{$setting});
                }
            }
            if ($newserverstatus{$type}{$setting} ne '') {
                @new = split(/,/,$newserverstatus{$type}{$setting});
            }
            if (@current > 0) {
                if (@new > 0) {
                    foreach my $item (@current) {
                        if (!grep(/^\Q$item\E$/,@new)) {
                            $changes{$type}{$setting} = 1;
                            last;
                        }
                    }
                    foreach my $item (@new) {
                        if (!grep(/^\Q$item\E$/,@current)) {
                            $changes{$type}{$setting} = 1;
                            last;
                        }
                    }
                } else {
                    $changes{$type}{$setting} = 1;
                }
            } elsif (@new > 0) {
                $changes{$type}{$setting} = 1;
            }
        }
    }
    if (keys(%changes) > 0) {
        my $titles= &LONCAPA::lonauthcgi::serverstatus_titles();
        my $putresult = &Apache::lonnet::put_dom('configuration',
                                                 \%serverstatushash,$dom);
        if ($putresult eq 'ok') {
            $resulttext .= &mt('Changes made:').'<ul>';
            foreach my $type (@pages) {
                if (ref($changes{$type}) eq 'HASH') {
                    $resulttext .= '<li>'.$titles->{$type}.'<ul>';
                    if ($changes{$type}{'namedusers'}) {
                        if ($newserverstatus{$type}{'namedusers'} eq '') {
                            $resulttext .= '<li>'.&mt("Access terminated for all specific (named) users").'</li>'."\n";
                        } else {
                            $resulttext .= '<li>'.&mt("Access available for the following specified users: ").$newserverstatus{$type}{'namedusers'}.'</li>'."\n";
                        }
                    }
                    if ($changes{$type}{'machines'}) {
                        if ($newserverstatus{$type}{'machines'} eq '') {
                            $resulttext .= '<li>'.&mt("Access terminated for all specific IP addresses").'</li>'."\n";
                        } else {
                            $resulttext .= '<li>'.&mt("Access available for the following specified IP addresses: ").$newserverstatus{$type}{'machines'}.'</li>'."\n";
                        }

                    }
                    $resulttext .= '</ul></li>';
                }
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = '<span class="LC_error">'.
                          &mt('An error occurred saving access settings for server status pages: [_1].',$putresult).'</span>';

        }
    } else {
        $resulttext = &mt('No changes made to access to server status pages');
    }
    return $resulttext;
}

sub modify_helpsettings {
    my ($r,$dom,$confname,%domconfig) = @_;
 	my ($resulttext,$errors,%changes,%helphash);
 	
 	my $customhelpfile  = $env{'form.loginhelpurl.filename'};
    my $defaulthelpfile = 'defaulthelp.html';
 	my $servadm = $r->dir_config('lonAdmEMail');
    my ($configuserok,$author_ok,$switchserver) = 
        &config_check($dom,$confname,$servadm);
 	
 	my %defaultchecked = ('submitbugs'	=> 'on');
 	my @offon = ('off','on');
    my %title = ( submitbugs     => 'Display link for users to submit a bug', 
    			  loginhelpurl  => 'Unauthenticated login help page set to custom file');
    			  
    my @toggles = ('submitbugs');

    $helphash{'helpsettings'} = {};
    
    if (ref($domconfig{'helpsettings'}) ne 'HASH') {
        if ($domconfig{'helpsettings'} eq '') {
            $domconfig{'helpsettings'} = {};
        }
    }
    
    if (ref($domconfig{'helpsettings'}) eq 'HASH') {
    	
        foreach my $item (@toggles) {
        	
			if ($defaultchecked{$item} eq 'on') { 
				if (($domconfig{'helpsettings'}{$item} eq '') &&
					 ($env{'form.'.$item} eq '0')) {
					$changes{$item} = 1;
				} elsif ($domconfig{'helpsettings'}{$item} ne $env{'form.'.$item}) {
					$changes{$item} = 1;
				}
			} elsif ($defaultchecked{$item} eq 'off') {
				if (($domconfig{'helpsettings'}{$item} eq '') &&
					 ($env{'form.'.$item} eq '1')) {
					$changes{$item} = 1;
				} elsif ($domconfig{'helpsettings'}{$item} ne $env{'form.'.$item}) {
					$changes{$item} = 1;
				}
			}
			$helphash{'helpsettings'}{$item} = $env{'form.'.$item};
		}
		
		if ($customhelpfile ne '') {
			my $error;
			if ($configuserok eq 'ok') {
				if ($switchserver) {
					$error = &mt("Upload of custom help file is not permitted to this server: [_1]",$switchserver);
				} else {
					if ($author_ok eq 'ok') {
						my ($result,$loginhelpurl) =
							&publishlogo($r,'upload','loginhelpurl',$dom,
										 $confname,'help','','',$customhelpfile);
						if ($result eq 'ok') {
							$helphash{'helpsettings'}{'loginhelpurl'} = $loginhelpurl;
							$changes{'loginhelpurl'} = 1;
						} else {
							$error = &mt("Upload of [_1] failed because an error occurred publishing the file in RES space. Error was: [_2].",$customhelpfile,$result);
						}
					} else {
						$error = &mt("Upload of [_1] failed because an author role could not be assigned to a Domain Configuration user ([_2]) in domain: [_3].  Error was: [_4].",$customhelpfile,$confname,$dom,$author_ok);
					}
				}
			} else {
				$error = &mt("Upload of [_1] failed because a Domain Configuration user ([_2]) could not be created in domain: [_3].  Error was: [_4].",$customhelpfile,$confname,$dom,$configuserok);
			}
			if ($error) {
				&Apache::lonnet::logthis($error);
				$errors .= '<li><span class="LC_error">'.$error.'</span></li>';
			}
		}
		
        if ($domconfig{'helpsettings'}{'loginhelpurl'} ne '') {
            if ($env{'form.loginhelpurl_del'}) {
                $helphash{'helpsettings'}{'loginhelpurl'} = '';
                $changes{'loginhelpurl'} = 1;
            }
        }
    }
    
    
    my $putresult;
    
    if (keys(%changes) > 0) {
    	$putresult = &Apache::lonnet::put_dom('configuration',\%helphash,$dom);
    } else {
    	$putresult = 'ok';
    }
                                             
    if ($putresult eq 'ok') {
        if (keys(%changes) > 0) {
			$resulttext = &mt('Changes made:').'<ul>';
			foreach my $item (sort(keys(%changes))) {
				if ($item eq 'submitbugs') {
					$resulttext .= '<li>'.&mt("$title{$item} set to $offon[$env{'form.'.$item}]").'</li>';
				}
				if ($item eq 'loginhelpurl') {
					if ($helphash{'helpsettings'}{'loginhelpurl'} eq '') {
                        $resulttext .= '<li>'.&mt('[_1] help file removed; [_2] file will be used for the unathorized help page in this domain.',$customhelpfile,$defaulthelpfile).'</li>';
                    } else {
                        $resulttext .= '<li>'.&mt("$title{$item} [_1]",$customhelpfile).'</li>';
                    }
				}
			}
			$resulttext .= '</ul>';
		} else {
			$resulttext = &mt('No changes made to help settings');
		}
    } else {
        $resulttext = '<span class="LC_error">'.
	    &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    if ($errors) {
        $resulttext .= &mt('The following errors occurred: ').'<ul>'.
                       $errors.'</ul>';
    }
    return $resulttext;
}

sub modify_coursedefaults {
    my ($dom,%domconfig) = @_;
    my ($resulttext,$errors,%changes,%defaultshash);
    my %defaultchecked = ('canuse_pdfforms' => 'off');
    my @offon = ('off','on');
    my @toggles = ();

    $defaultshash{'coursedefaults'} = {};

    if (ref($domconfig{'coursedefaults'}) ne 'HASH') {
        if ($domconfig{'coursedefaults'} eq '') {
            $domconfig{'coursedefaults'} = {};
        }
    }

    if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
        foreach my $item (@toggles) {
            if ($defaultchecked{$item} eq 'on') {
                if (($domconfig{'coursedefaults'}{$item} eq '') &&
                    ($env{'form.'.$item} eq '0')) {
                    $changes{$item} = 1;
                } elsif ($domconfig{'coursdefaults'}{$item} ne $env{'form.'.$item}) {
                    $changes{$item} = 1;
                }
            } elsif ($defaultchecked{$item} eq 'off') {
                if (($domconfig{'coursedefaults'}{$item} eq '') &&
                    ($env{'form.'.$item} eq '1')) {
                    $changes{$item} = 1;
                } elsif ($domconfig{'coursedefaults'}{$item} ne $env{'form.'.$item}) {
                    $changes{$item} = 1;
                }
            }
            $defaultshash{'coursedefaults'}{$item} = $env{'form.'.$item};
        }
        my $currdefresponder = $domconfig{'coursedefaults'}{'anonsurvey_threshold'};
        my $newdefresponder = $env{'form.anonsurvey_threshold'};
        $newdefresponder =~ s/\D//g;
        if ($newdefresponder eq '' || $newdefresponder < 1) {
            $newdefresponder = 1;
        }
        $defaultshash{'coursedefaults'}{'anonsurvey_threshold'} = $newdefresponder;
        if ($currdefresponder ne $newdefresponder) {
            unless ($currdefresponder eq '' && $newdefresponder == 10) {
                $changes{'anonsurvey_threshold'} = 1;
            }
        }
    }
    my $putresult = &Apache::lonnet::put_dom('configuration',\%defaultshash,
                                             $dom);
    if ($putresult eq 'ok') {
        if (keys(%changes) > 0) {
            if ($changes{'canuse_pdfforms'}) {
                my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
                $domdefaults{'canuse_pdfforms'}=$defaultshash{'coursedefaults'}{'canuse_pdfforms'};
                my $cachetime = 24*60*60;
                &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);
            }
            $resulttext = &mt('Changes made:').'<ul>';
            foreach my $item (sort(keys(%changes))) {
                if ($item eq 'canuse_pdfforms') {
                    if ($env{'form.'.$item} eq '1') {
                        $resulttext .= '<li>'.&mt("Course/Community users can create/upload PDF forms set to 'on'").'</li>';
                    } else {
                        $resulttext .= '<li>'.&mt('Course/Community users can create/upload PDF forms set to "off"').'</li>';
                    }
                } elsif ($item eq 'anonsurvey_threshold') {
                        $resulttext .= '<li>'.&mt('Responder count required for display of anonymous survey submissions set to [_1].',$defaultshash{'coursedefaults'}{'anonsurvey_threshold'}).'</li>';
                }
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = &mt('No changes made to course defaults');
        }
    } else {
        $resulttext = '<span class="LC_error">'.
            &mt('An error occurred: [_1]',$putresult).'</span>';
    }
    return $resulttext;
}

sub modify_usersessions {
    my ($dom,%domconfig) = @_;
    my @types = ('version','excludedomain','includedomain');
    my @prefixes = ('remote','hosted');
    my @lcversions = &Apache::lonnet::all_loncaparevs();
    my (%by_ip,%by_location,@intdoms);
    &build_location_hashes(\@intdoms,\%by_ip,\%by_location);
    my @locations = sort(keys(%by_location));
    my (%defaultshash,%changes);
    foreach my $prefix (@prefixes) {
        $defaultshash{'usersessions'}{$prefix} = {};
    }
    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
    my $resulttext;
    my %iphost = &Apache::lonnet::get_iphost();
    foreach my $prefix (@prefixes) {
        foreach my $type (@types) {
            my $inuse = $env{'form.'.$prefix.'_'.$type.'_inuse'};
            if ($type eq 'version') {
                my $value = $env{'form.'.$prefix.'_'.$type};
                my $okvalue;
                if ($value ne '') {
                    if (grep(/^\Q$value\E$/,@lcversions)) {
                        $okvalue = $value;
                    }
                }
                if (ref($domconfig{'usersessions'}) eq 'HASH') {
                    if (ref($domconfig{'usersessions'}{$prefix}) eq 'HASH') {
                        if ($domconfig{'usersessions'}{$prefix}{$type} ne '') {
                            if ($inuse == 0) {
                                $changes{$prefix}{$type} = 1;
                            } else {
                                if ($okvalue ne $domconfig{'usersessions'}{$prefix}{$type}) {
                                    $changes{$prefix}{$type} = 1;
                                }
                                if ($okvalue ne '') {
                                    $defaultshash{'usersessions'}{$prefix}{$type} = $okvalue;
                                } 
                            }
                        } else {
                            if (($inuse == 1) && ($okvalue ne '')) {
                                $defaultshash{'usersessions'}{$prefix}{$type} = $okvalue;
                                $changes{$prefix}{$type} = 1;
                            }
                        }
                    } else {
                        if (($inuse == 1) && ($okvalue ne '')) {
                            $defaultshash{'usersessions'}{$prefix}{$type} = $okvalue;
                            $changes{$prefix}{$type} = 1;
                        }
                    }
                } else {
                    if (($inuse == 1) && ($okvalue ne '')) {
                        $defaultshash{'usersessions'}{$prefix}{$type} = $okvalue;
                        $changes{$prefix}{$type} = 1;
                    }
                }
            } else {
                my @vals = &Apache::loncommon::get_env_multiple('form.'.$prefix.'_'.$type);
                my @okvals;
                foreach my $val (@vals) {
                    if ($val =~ /:/) {
                        my @items = split(/:/,$val);
                        foreach my $item (@items) {
                            if (ref($by_location{$item}) eq 'ARRAY') {
                                push(@okvals,$item);
                            }
                        }
                    } else {
                        if (ref($by_location{$val}) eq 'ARRAY') {
                            push(@okvals,$val);
                        }
                    }
                }
                @okvals = sort(@okvals);
                if (ref($domconfig{'usersessions'}) eq 'HASH') {
                    if (ref($domconfig{'usersessions'}{$prefix}) eq 'HASH') {
                        if (ref($domconfig{'usersessions'}{$prefix}{$type}) eq 'ARRAY') {
                            if ($inuse == 0) {
                                $changes{$prefix}{$type} = 1; 
                            } else {
                                $defaultshash{'usersessions'}{$prefix}{$type} = \@okvals;
                                my @changed = &Apache::loncommon::compare_arrays($domconfig{'usersessions'}{$prefix}{$type},$defaultshash{'usersessions'}{$prefix}{$type});
                                if (@changed > 0) {
                                    $changes{$prefix}{$type} = 1;
                                }
                            }
                        } else {
                            if ($inuse == 1) {
                                $defaultshash{'usersessions'}{$prefix}{$type} = \@okvals;
                                $changes{$prefix}{$type} = 1;
                            }
                        } 
                    } else {
                        if ($inuse == 1) {
                            $defaultshash{'usersessions'}{$prefix}{$type} = \@okvals;
                            $changes{$prefix}{$type} = 1;
                        }
                    }
                } else {
                    if ($inuse == 1) {
                        $defaultshash{'usersessions'}{$prefix}{$type} = \@okvals;
                        $changes{$prefix}{$type} = 1;
                    }
                }
            }
        }
    }
    if (keys(%changes) > 0) {
        my $putresult = &Apache::lonnet::put_dom('configuration',\%defaultshash,
                                                 $dom);
        if ($putresult eq 'ok') {
            if (ref($defaultshash{'usersessions'}) eq 'HASH') {
                if (ref($defaultshash{'usersessions'}{'remote'}) eq 'HASH') {
                    $domdefaults{'remotesessions'} = $defaultshash{'usersessions'}{'remote'};
                }
                if (ref($defaultshash{'usersessions'}{'hosted'}) eq 'HASH') {
                    $domdefaults{'hostedsessions'} = $defaultshash{'usersessions'}{'hosted'};
                }
            }
            my $cachetime = 24*60*60;
            &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);
            my %lt = &usersession_titles();
            $resulttext = &mt('Changes made:').'<ul>';
            foreach my $prefix (@prefixes) {
                if (ref($changes{$prefix}) eq 'HASH') {
                    $resulttext .= '<li>'.$lt{$prefix}.'<ul>';
                    foreach my $type (@types) {
                        if (defined($changes{$prefix}{$type})) {
                            my $newvalue;
                            if (ref($defaultshash{'usersessions'}) eq 'HASH') {
                                if (ref($defaultshash{'usersessions'}{$prefix})) {
                                    if ($type eq 'version') {
                                        $newvalue = $defaultshash{'usersessions'}{$prefix}{$type};
                                    } elsif (ref($defaultshash{'usersessions'}{$prefix}{$type}) eq 'ARRAY') {
                                        if (@{$defaultshash{'usersessions'}{$prefix}{$type}} > 0) {
                                            $newvalue = join(', ',@{$defaultshash{'usersessions'}{$prefix}{$type}});
                                        }
                                    }
                                }
                            }
                            if ($newvalue eq '') {
                                if ($type eq 'version') {
                                    $resulttext .= '<li>'.&mt('[_1] set to: off',$lt{$type}).'</li>';
                                } else {
                                    $resulttext .= '<li>'.&mt('[_1] set to: none',$lt{$type}).'</li>';
                                }
                            } else {
                                if ($type eq 'version') {
                                    $newvalue .= ' '.&mt('(or later)'); 
                                } 
                                $resulttext .= '<li>'.&mt('[_1] set to: [_2].',$lt{$type},$newvalue).'</li>'; 
                            }
                        }
                    }
                    $resulttext .= '</ul>';
                }
            }
            $resulttext .= '</ul>';
        } else {
            $resulttext = '<span class="LC_error">'.
                          &mt('An error occurred: [_1]',$putresult).'</span>';
        }
    } else {
        $resulttext =  &mt('No changes made to settings for user session hosting.');
    }
    return $resulttext;
}

sub recurse_check {
    my ($chkcats,$categories,$depth,$name) = @_;
    if (ref($chkcats->[$depth]{$name}) eq 'ARRAY') {
        my $chg = 0;
        for (my $j=0; $j<@{$chkcats->[$depth]{$name}}; $j++) {
            my $category = $chkcats->[$depth]{$name}[$j];
            my $item;
            if ($category eq '') {
                $chg ++;
            } else {
                my $deeper = $depth + 1;
                $item = &escape($category).':'.&escape($name).':'.$depth;
                if ($chg) {
                    $categories->{$item} -= $chg;
                }
                &recurse_check($chkcats,$categories,$deeper,$category);
                $deeper --;
            }
        }
    }
    return;
}

sub recurse_cat_deletes {
    my ($item,$coursecategories,$deletions) = @_;
    my ($deleted,$container,$depth) = map { &unescape($_); } split(/:/,$item);
    my $subdepth = $depth + 1;
    if (ref($coursecategories) eq 'HASH') {
        foreach my $subitem (keys(%{$coursecategories})) {
            my ($child,$parent,$itemdepth) = map { &unescape($_); } split(/:/,$subitem);
            if (($parent eq $deleted) && ($itemdepth == $subdepth)) {
                delete($coursecategories->{$subitem});
                $deletions->{$subitem} = 1;
                &recurse_cat_deletes($subitem,$coursecategories,$deletions);
            }  
        }
    }
    return;
}

sub dom_servers {
    my ($dom) = @_;
    my (%uniqservers,%servers);
    my $primaryserver = &Apache::lonnet::hostname(&Apache::lonnet::domain($dom,'primary'));
    my @machinedoms = &Apache::lonnet::machine_domains($primaryserver);
    foreach my $mdom (@machinedoms) {
        my %currservers = %servers;
        my %server = &Apache::lonnet::get_servers($mdom);
        %servers = (%currservers,%server);
    }
    my %by_hostname;
    foreach my $id (keys(%servers)) {
        push(@{$by_hostname{$servers{$id}}},$id);
    }
    foreach my $hostname (sort(keys(%by_hostname))) {
        if (@{$by_hostname{$hostname}} > 1) {
            my $match = 0;
            foreach my $id (@{$by_hostname{$hostname}}) {
                if (&Apache::lonnet::host_domain($id) eq $dom) {
                    $uniqservers{$id} = $hostname;
                    $match = 1;
                }
            }
            unless ($match) {
                $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
            }
        } else {
            $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
        }
    }
    return %uniqservers;
}

sub get_active_dcs {
    my ($dom) = @_;
    my %dompersonnel = &Apache::lonnet::get_domain_roles($dom,['dc']);
    my %domcoords;
    my $numdcs = 0;
    my $now = time;
    foreach my $server (keys(%dompersonnel)) {
        foreach my $user (sort(keys(%{$dompersonnel{$server}}))) {
            my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user);
            my ($end,$start) = split(':',$dompersonnel{$server}{$user});
            if (($end eq '') || ($end == 0) || ($end > $now)) {
                if ($start <= $now) {
                    $domcoords{$uname.':'.$udom} = $dompersonnel{$server}{$user};
                }
            }
        }
    }
    return %domcoords;
}

sub active_dc_picker {
    my ($dom,$curr_dc) = @_;
    my %domcoords = &get_active_dcs($dom); 
    my @dcs = sort(keys(%domcoords));
    my $numdcs = scalar(@dcs); 
    my $datatable;
    my $numinrow = 2;
    if ($numdcs > 1) {
        $datatable = '<table>';
        for (my $i=0; $i<@dcs; $i++) {
            my $rem = $i%($numinrow);
            if ($rem == 0) {
                if ($i > 0) {
                    $datatable .= '</tr>';
                }
                $datatable .= '<tr>';
            }
            my $check = ' ';
            if ($curr_dc eq '') {
                if (!$i) { 
                    $check = ' checked="checked" ';
                }
            } elsif ($dcs[$i] eq $curr_dc) {
                $check = ' checked="checked" ';
            }
            if ($i == @dcs - 1) {
                my $colsleft = $numinrow - $rem;
                if ($colsleft > 1) {
                    $datatable .= '<td colspan="'.$colsleft.'">';
                } else {
                    $datatable .= '<td>';
                }
            } else {
                $datatable .= '<td>';
            }
            my ($dcname,$dcdom) = split(':',$dcs[$i]);
            $datatable .= '<span class="LC_nobreak"><label>'.
                          '<input type="radio" name="autocreate_xmldc"'.
                          ' value="'.$dcs[$i].'"'.$check.'/>'.
                          &Apache::loncommon::plainname($dcname,$dcdom).
                          '</label></span></td>';
        }
        $datatable .= '</tr></table>';
    } elsif (@dcs) {
        $datatable .= '<input type="hidden" name="autocreate_dc" value="'.
                      $dcs[0].'" />';
    }
    return ($numdcs,$datatable);
}

sub usersession_titles {
    return &Apache::lonlocal::texthash(
               hosted => 'Hosting of sessions for users from other domains on servers in this domain',

               remote => 'Hosting of sessions for users in this domain on servers in other domains',
               version => 'LON-CAPA version requirement',
               excludedomain => 'Allow all, but exclude specific domains',
               includedomain => 'Deny all, but include specific domains',
           );
}

1;

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