# The LearningOnline Network with CAPA
# Create a user
#
# $Id: loncreateuser.pm,v 1.360 2012/04/25 21:22:01 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/
#
###

package Apache::loncreateuser;

=pod

=head1 NAME

Apache::loncreateuser.pm

=head1 SYNOPSIS

    Handler to create users and custom roles

    Provides an Apache handler for creating users,
    editing their login parameters, roles, and removing roles, and
    also creating and assigning custom roles.

=head1 OVERVIEW

=head2 Custom Roles

In LON-CAPA, roles are actually collections of privileges. "Teaching
Assistant", "Course Coordinator", and other such roles are really just
collection of privileges that are useful in many circumstances.

Custom roles can be defined by a Domain Coordinator, Course Coordinator
or Community Coordinator via the Manage User functionality.
The custom role editor screen will show all privileges which can be
assigned to users. For a complete list of privileges, please see 
C</home/httpd/lonTabs/rolesplain.tab>.

Custom role definitions are stored in the C<roles.db> file of the creator
of the role.

=cut

use strict;
use Apache::Constants qw(:common :http);
use Apache::lonnet;
use Apache::loncommon;
use Apache::lonlocal;
use Apache::longroup;
use Apache::lonuserutils;
use Apache::loncoursequeueadmin;
use LONCAPA qw(:DEFAULT :match);

my $loginscript; # piece of javascript used in two separate instances
my $authformnop;
my $authformkrb;
my $authformint;
my $authformfsys;
my $authformloc;

sub initialize_authen_forms {
    my ($dom,$formname,$curr_authtype,$mode) = @_;
    my ($krbdef,$krbdefdom) = &Apache::loncommon::get_kerberos_defaults($dom);
    my %param = ( formname => $formname,
                  kerb_def_dom => $krbdefdom,
                  kerb_def_auth => $krbdef,
                  domain => $dom,
                );
    my %abv_auth = &auth_abbrev();
    if ($curr_authtype =~ /^(krb4|krb5|internal|localauth|unix):(.*)$/) {
        my $long_auth = $1;
        my $curr_autharg = $2;
        my %abv_auth = &auth_abbrev();
        $param{'curr_authtype'} = $abv_auth{$long_auth};
        if ($long_auth =~ /^krb(4|5)$/) {
            $param{'curr_kerb_ver'} = $1;
            $param{'curr_autharg'} = $curr_autharg;
        }
        if ($mode eq 'modifyuser') {
            $param{'mode'} = $mode;
        }
    }
    $loginscript  = &Apache::loncommon::authform_header(%param);
    $authformkrb  = &Apache::loncommon::authform_kerberos(%param);
    $authformnop  = &Apache::loncommon::authform_nochange(%param);
    $authformint  = &Apache::loncommon::authform_internal(%param);
    $authformfsys = &Apache::loncommon::authform_filesystem(%param);
    $authformloc  = &Apache::loncommon::authform_local(%param);
}

sub auth_abbrev {
    my %abv_auth = (
                     krb5     => 'krb',
                     krb4     => 'krb',
                     internal => 'int',
                     localuth => 'loc',
                     unix     => 'fsys',
                   );
    return %abv_auth;
}

# ====================================================

sub portfolio_quota {
    my ($ccuname,$ccdomain) = @_;
    my %lt = &Apache::lonlocal::texthash(
                   'usrt'      => "User Tools",
                   'disk'      => "Disk space allocated to user's portfolio files",
                   'cuqu'      => "Current quota",
                   'cust'      => "Custom quota",
                   'defa'      => "Default",
                   'chqu'      => "Change quota",
    );
    my ($currquota,$quotatype,$inststatus,$defquota) = 
        &Apache::loncommon::get_user_quota($ccuname,$ccdomain);
    my ($usertypes,$order) = &Apache::lonnet::retrieve_inst_usertypes($ccdomain);
    my ($longinsttype,$showquota,$custom_on,$custom_off,$defaultinfo);
    if ($inststatus ne '') {
        if ($usertypes->{$inststatus} ne '') {
            $longinsttype = $usertypes->{$inststatus};
        }
    }
    $custom_on = ' ';
    $custom_off = ' checked="checked" ';
    my $quota_javascript = <<"END_SCRIPT";
<script type="text/javascript">
// <![CDATA[
function quota_changes(caller) {
    if (caller == "custom") {
        if (document.cu.customquota[0].checked) {
            document.cu.portfolioquota.value = "";
        }
    }
    if (caller == "quota") {
        document.cu.customquota[1].checked = true;
    }
}
// ]]>
</script>
END_SCRIPT
    if ($quotatype eq 'custom') {
        $custom_on = $custom_off;
        $custom_off = ' ';
        $showquota = $currquota;
        if ($longinsttype eq '') {
            $defaultinfo = &mt('For this user, the default quota would be [_1]'
                            .' Mb.',$defquota);
        } else {
            $defaultinfo = &mt("For this user, the default quota would be [_1]".
                               " Mb, as determined by the user's institutional".
                               " affiliation ([_2]).",$defquota,$longinsttype);
        }
    } else {
        if ($longinsttype eq '') {
            $defaultinfo = &mt('For this user, the default quota is [_1]'
                            .' Mb.',$defquota);
        } else {
            $defaultinfo = &mt("For this user, the default quota of [_1]".
                               " Mb, is determined by the user's institutional".
                               " affiliation ([_2]).",$defquota,$longinsttype);
        }
    }

    my $output = $quota_javascript."\n".
                 '<h3>'.$lt{'usrt'}.'</h3>'."\n".
                 &Apache::loncommon::start_data_table();

    if (&Apache::lonnet::allowed('mut',$ccdomain)) {
        $output .= &build_tools_display($ccuname,$ccdomain,'tools');
    }
    if (&Apache::lonnet::allowed('mpq',$ccdomain)) {
        $output .= '<tr class="LC_info_row">'."\n".
                   '    <td>'.$lt{'disk'}.'</td>'."\n".
                   '  </tr>'."\n".
                   &Apache::loncommon::start_data_table_row()."\n".
                   '  <td>'.$lt{'cuqu'}.': '.
                   $currquota.'&nbsp;Mb.&nbsp;&nbsp;'.
                   $defaultinfo.'</td>'."\n".
                   &Apache::loncommon::end_data_table_row()."\n".
                   &Apache::loncommon::start_data_table_row()."\n".
                   '  <td><span class="LC_nobreak">'.$lt{'chqu'}.
                   ': <label>'.
                   '<input type="radio" name="customquota" value="0" '.
                   $custom_off.' onchange="javascript:quota_changes('."'custom'".')"'.
                   ' />'.$lt{'defa'}.'&nbsp;('.$defquota.' Mb).</label>&nbsp;'.
                   '&nbsp;<label><input type="radio" name="customquota" value="1" '. 
                   $custom_on.'  onchange="javascript:quota_changes('."'custom'".')" />'.
                   $lt{'cust'}.':</label>&nbsp;'.
                   '<input type="text" name="portfolioquota" size ="5" value="'.
                   $showquota.'" onfocus="javascript:quota_changes('."'quota'".')" '.
                   '/>&nbsp;Mb</span></td>'."\n".
                   &Apache::loncommon::end_data_table_row()."\n";
    }  
    $output .= &Apache::loncommon::end_data_table();
    return $output;
}

sub build_tools_display {
    my ($ccuname,$ccdomain,$context) = @_;
    my (@usertools,%userenv,$output,@options,%validations,%reqtitles,%reqdisplay,
        $colspan,$isadv,%domconfig);
    my %lt = &Apache::lonlocal::texthash (
                   'blog'       => "Personal User Blog",
                   'aboutme'    => "Personal Information Page",
                   'portfolio'  => "Personal User Portfolio",
                   'avai'       => "Available",
                   'cusa'       => "availability",
                   'chse'       => "Change setting",
                   'usde'       => "Use default",
                   'uscu'       => "Use custom",
                   'official'   => 'Can request creation of official courses',
                   'unofficial' => 'Can request creation of unofficial courses',
                   'community'  => 'Can request creation of communities',
    );
    if ($context eq 'requestcourses') {
        %userenv = &Apache::lonnet::userenvironment($ccdomain,$ccuname,
                      'requestcourses.official','requestcourses.unofficial',
                      'requestcourses.community');
        @usertools = ('official','unofficial','community');
        @options =('norequest','approval','autolimit','validate');
        %validations = &Apache::lonnet::auto_courserequest_checks($ccdomain);
        %reqtitles = &courserequest_titles();
        %reqdisplay = &courserequest_display();
        $colspan = ' colspan="2"';
        %domconfig =
            &Apache::lonnet::get_dom('configuration',['requestcourses'],$ccdomain);
        $isadv = &Apache::lonnet::is_advanced_user($ccuname,$ccdomain);
    } else {
        %userenv = &Apache::lonnet::userenvironment($ccdomain,$ccuname,
                          'tools.aboutme','tools.portfolio','tools.blog');
        @usertools = ('aboutme','blog','portfolio');
    }
    foreach my $item (@usertools) {
        my ($custom_access,$curr_access,$cust_on,$cust_off,$tool_on,$tool_off,
            $currdisp,$custdisp,$custradio);
        $cust_off = 'checked="checked" ';
        $tool_on = 'checked="checked" ';
        $curr_access =  
            &Apache::lonnet::usertools_access($ccuname,$ccdomain,$item,undef,
                                              $context);
        if ($userenv{$context.'.'.$item} ne '') {
            $cust_on = ' checked="checked" ';
            $cust_off = '';
        }
        if ($context eq 'requestcourses') {
            if ($userenv{$context.'.'.$item} eq '') {
                $custom_access = &mt('Currently from default setting.');
            } else {
                $custom_access = &mt('Currently from custom setting.');
            }
        } else {
            if ($userenv{$context.'.'.$item} eq '') {
                $custom_access =
                    &mt('Availability determined currently from default setting.');
                if (!$curr_access) {
                    $tool_off = 'checked="checked" ';
                    $tool_on = '';
                }
            } else {
                $custom_access =
                    &mt('Availability determined currently from custom setting.');
                if ($userenv{$context.'.'.$item} == 0) {
                    $tool_off = 'checked="checked" ';
                    $tool_on = '';
                }
            }
        }
        $output .= '  <tr class="LC_info_row">'."\n".
                   '   <td'.$colspan.'>'.$lt{$item}.'</td>'."\n".
                   '  </tr>'."\n".
                   &Apache::loncommon::start_data_table_row()."\n";
        if ($context eq 'requestcourses') {
            my ($curroption,$currlimit);
            if ($userenv{$context.'.'.$item} ne '') {
                $curroption = $userenv{$context.'.'.$item};
            } else {
                my (@inststatuses);
                $curroption =
                    &Apache::loncoursequeueadmin::get_processtype($ccuname,$ccdomain,$isadv,$ccdomain,
                                                               $item,\@inststatuses,\%domconfig);
            }
            if (!$curroption) {
                $curroption = 'norequest';
            }
            if ($curroption =~ /^autolimit=(\d*)$/) {
                $currlimit = $1;
                if ($currlimit eq '') {
                    $currdisp = &mt('Yes, automatic creation');
                } else {
                    $currdisp = &mt('Yes, up to [quant,_1,request]/user',$currlimit);
                }
            } else {
                $currdisp = $reqdisplay{$curroption};
            }
            $custdisp = '<table>';
            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}{'_custom_'}) {
                            $canvalidate = 1;
                        }
                    }
                    next if (!$canvalidate);
                }
                my $checked = '';
                if ($option eq $curroption) {
                    $checked = ' checked="checked"';
                } elsif ($option eq 'autolimit') {
                    if ($curroption =~ /^autolimit/) {
                        $checked = ' checked="checked"';
                    }
                }
                $custdisp .= '<tr><td><span class="LC_nobreak"><label>'.
                             '<input type="radio" name="crsreq_'.$item.
                             '" value="'.$val.'"'.$checked.' />'.
                             $reqtitles{$option}.'</label>&nbsp;';
                if ($option eq 'autolimit') {
                    $custdisp .= '<input type="text" name="crsreq_'.
                                 $item.'_limit" size="1" '.
                                 'value="'.$currlimit.'" /></span><br />'.
                                 $reqtitles{'unlimited'};
                 } else {
                     $custdisp .= '</span>';
                 }
                 $custdisp .= '</td></tr>';
            }
            $custdisp .= '</table>';
            $custradio = '</span></td><td>'.&mt('Custom setting').'<br />'.$custdisp;
        } else {
            $currdisp = ($curr_access?&mt('Yes'):&mt('No'));
            $custdisp = '<span class="LC_nobreak"><label>'.
                        '<input type="radio" name="'.$context.'_'.$item.'"'.
                        ' value="1"'. $tool_on.'/>'.&mt('On').'</label>&nbsp;<label>'.
                        '<input type="radio" name="'.$context.'_'.$item.'" value="0" '.
                        $tool_off.'/>'.&mt('Off').'</label></span>';
            $custradio = ('&nbsp;'x2).'--'.$lt{'cusa'}.':&nbsp;'.$custdisp.
                          '</span>';
        }
        $output .= '  <td'.$colspan.'>'.$custom_access.('&nbsp;'x4).
                   $lt{'avai'}.': '.$currdisp.'</td>'."\n".
                   &Apache::loncommon::end_data_table_row()."\n".
                   &Apache::loncommon::start_data_table_row()."\n".
                   '  <td style="vertical-align:top;"><span class="LC_nobreak">'.
                   $lt{'chse'}.': <label>'.
                   '<input type="radio" name="custom'.$item.'" value="0" '.
                   $cust_off.'/>'.$lt{'usde'}.'</label>'.('&nbsp;' x3).
                   '<label><input type="radio" name="custom'.$item.'" value="1" '.
                   $cust_on.'/>'.$lt{'uscu'}.'</label>'.$custradio.'</td>'.
                   &Apache::loncommon::end_data_table_row()."\n";
    }
    return $output;
}

sub coursereq_externaluser {
    my ($ccuname,$ccdomain,$cdom) = @_;
    my (@usertools,@options,%validations,%userenv,$output);
    my %lt = &Apache::lonlocal::texthash (
                   'official'   => 'Can request creation of official courses',
                   'unofficial' => 'Can request creation of unofficial courses',
                   'community'  => 'Can request creation of communities',
    );

    %userenv = &Apache::lonnet::userenvironment($ccdomain,$ccuname,
                      'reqcrsotherdom.official','reqcrsotherdom.unofficial',
                      'reqcrsotherdom.community');
    @usertools = ('official','unofficial','community');
    @options = ('approval','validate','autolimit');
    %validations = &Apache::lonnet::auto_courserequest_checks($cdom);
    my $optregex = join('|',@options);
    my %reqtitles = &courserequest_titles();
    foreach my $item (@usertools) {
        my ($curroption,$currlimit,$tooloff);
        if ($userenv{'reqcrsotherdom.'.$item} ne '') {
            my @curr = split(',',$userenv{'reqcrsotherdom.'.$item});
            foreach my $req (@curr) {
                if ($req =~ /^\Q$cdom\E\:($optregex)=?(\d*)$/) {
                    $curroption = $1;
                    $currlimit = $2;
                    last;
                }
            }
            if (!$curroption) {
                $curroption = 'norequest';
                $tooloff = ' checked="checked"';
            }
        } else {
            $curroption = 'norequest';
            $tooloff = ' checked="checked"';
        }
        $output.= &Apache::loncommon::start_data_table_row()."\n".
                  '  <td><span class="LC_nobreak">'.$lt{$item}.': </span></td><td>'.
                  '<table><tr><td valign="top">'."\n".
                  '<label><input type="radio" name="reqcrsotherdom_'.$item.
                  '" value=""'.$tooloff.' />'.$reqtitles{'norequest'}.
                  '</label></td>';
        foreach my $option (@options) {
            if ($option eq 'validate') {
                my $canvalidate = 0;
                if (ref($validations{$item}) eq 'HASH') {
                    if ($validations{$item}{'_external_'}) {
                        $canvalidate = 1;
                    }
                }
                next if (!$canvalidate);
            }
            my $checked = '';
            if ($option eq $curroption) {
                $checked = ' checked="checked"';
            }
            $output .= '<td valign="top"><span class="LC_nobreak"><label>'.
                       '<input type="radio" name="reqcrsotherdom_'.$item.
                       '" value="'.$option.'"'.$checked.' />'.
                       $reqtitles{$option}.'</label>';
            if ($option eq 'autolimit') {
                $output .= '&nbsp;<input type="text" name="reqcrsotherdom_'.
                           $item.'_limit" size="1" '.
                           'value="'.$currlimit.'" /></span>'.
                           '<br />'.$reqtitles{'unlimited'};
            } else {
                $output .= '</span>';
            }
            $output .= '</td>';
        }
        $output .= '</td></tr></table></td>'."\n".
                   &Apache::loncommon::end_data_table_row()."\n";
    }
    return $output;
}

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_display {
    my %titles = &Apache::lonlocal::texthash (
                                   approval   => 'Yes, need approval',
                                   validate   => 'Yes, with validation',
                                   norequest  => 'No',
   );
   return %titles;
}

# =================================================================== Phase one

sub print_username_entry_form {
    my ($r,$context,$response,$srch,$forcenewuser,$crstype,$brcrum) = @_;
    my $defdom=$env{'request.role.domain'};
    my $formtoset = 'crtuser';
    if (exists($env{'form.startrolename'})) {
        $formtoset = 'docustom';
        $env{'form.rolename'} = $env{'form.startrolename'};
    } elsif ($env{'form.origform'} eq 'crtusername') {
        $formtoset =  $env{'form.origform'};
    }

    my ($jsback,$elements) = &crumb_utilities();

    my $jscript = &Apache::loncommon::studentbrowser_javascript()."\n".
        '<script type="text/javascript">'."\n".
        '// <![CDATA['."\n".
        &Apache::lonhtmlcommon::set_form_elements($elements->{$formtoset})."\n".
        '// ]]>'."\n".
        '</script>'."\n";

    my %existingroles=&Apache::lonuserutils::my_custom_roles($crstype);
    if (($env{'form.action'} eq 'custom') && (keys(%existingroles) > 0)
        && (&Apache::lonnet::allowed('mcr','/'))) {
        $jscript .= &customrole_javascript();
    }
    my $helpitem = 'Course_Change_Privileges';
    if ($env{'form.action'} eq 'custom') {
        $helpitem = 'Course_Editing_Custom_Roles';
    } elsif ($env{'form.action'} eq 'singlestudent') {
        $helpitem = 'Course_Add_Student';
    }
    my %breadcrumb_text = &singleuser_breadcrumb($crstype);
    if ($env{'form.action'} eq 'custom') {
        push(@{$brcrum},
                 {href=>"javascript:backPage(document.crtuser)",       
                  text=>"Pick custom role",
                  help => $helpitem,}
                 );
    } else {
        push (@{$brcrum},
                  {href => "javascript:backPage(document.crtuser)",
                   text => $breadcrumb_text{'search'},
                   help => $helpitem,
                   faq  => 282,
                   bug  => 'Instructor Interface',}
                  );
    }
    my %loaditems = (
                'onload' => "javascript:setFormElements(document.$formtoset)",
                    );
    my $args = {bread_crumbs           => $brcrum,
                bread_crumbs_component => 'User Management',
                add_entries            => \%loaditems,};
    $r->print(&Apache::loncommon::start_page('User Management',$jscript,$args));

    my %lt=&Apache::lonlocal::texthash(
                    'srst' => 'Search for a user and enroll as a student',
                    'srme' => 'Search for a user and enroll as a member',
                    'srad' => 'Search for a user and modify/add user information or roles',
		    'usr'  => "Username",
                    'dom'  => "Domain",
                    'ecrp' => "Define or Edit Custom Role",
                    'nr'   => "role name",
                    'cre'  => "Next",
				       );

    if ($env{'form.action'} eq 'custom') {
        if (&Apache::lonnet::allowed('mcr','/')) {
            my $newroletext = &mt('Define new custom role:');
            $r->print('<form action="/adm/createuser" method="post" name="docustom">'.
                      '<input type="hidden" name="action" value="'.$env{'form.action'}.'" />'.
                      '<input type="hidden" name="phase" value="selected_custom_edit" />'.
                      '<h3>'.$lt{'ecrp'}.'</h3>'.
                      &Apache::loncommon::start_data_table().
                      &Apache::loncommon::start_data_table_row().
                      '<td>');
            if (keys(%existingroles) > 0) {
                $r->print('<br /><label><input type="radio" name="customroleaction" value="new" checked="checked" onclick="setCustomFields();" /><b>'.$newroletext.'</b></label>');
            } else {
                $r->print('<br /><input type="hidden" name="customroleaction" value="new" /><b>'.$newroletext.'</b>');
            }
            $r->print('</td><td align="center">'.$lt{'nr'}.'<br /><input type="text" size="15" name="newrolename" onfocus="setCustomAction('."'new'".');" /></td>'.
                      &Apache::loncommon::end_data_table_row());
            if (keys(%existingroles) > 0) {
                $r->print(&Apache::loncommon::start_data_table_row().'<td><br />'.
                          '<label><input type="radio" name="customroleaction" value="edit" onclick="setCustomFields();"/><b>'.
                          &mt('View/Modify existing role:').'</b></label></td>'.
                          '<td align="center"><br />'.
                          '<select name="rolename" onchange="setCustomAction('."'edit'".');">'.
                          '<option value="" selected="selected">'.
                          &mt('Select'));
                foreach my $role (sort(keys(%existingroles))) {
                    $r->print('<option value="'.$role.'">'.$role.'</option>');
                }
                $r->print('</select>'.
                          '</td>'.
                          &Apache::loncommon::end_data_table_row());
            }
            $r->print(&Apache::loncommon::end_data_table().'<p>'.
                      '<input name="customeditor" type="submit" value="'.
                      $lt{'cre'}.'" /></p>'.
                      '</form>');
        }
    } else {
        my $actiontext = $lt{'srad'};
        if ($env{'form.action'} eq 'singlestudent') {
            if ($crstype eq 'Community') {
                $actiontext = $lt{'srme'};
            } else {
                $actiontext = $lt{'srst'};
            }
        }
        $r->print("<h3>$actiontext</h3>");
        if ($env{'form.origform'} ne 'crtusername') {
            $r->print("\n".$response);
        }
        $r->print(&entry_form($defdom,$srch,$forcenewuser,$context,$response,$crstype));
    }
}

sub customrole_javascript {
    my $js = <<"END";
<script type="text/javascript">
// <![CDATA[

function setCustomFields() {
    if (document.docustom.customroleaction.length > 0) {
        for (var i=0; i<document.docustom.customroleaction.length; i++) {
            if (document.docustom.customroleaction[i].checked) {
                if (document.docustom.customroleaction[i].value == 'new') {
                    document.docustom.rolename.selectedIndex = 0;
                } else {
                    document.docustom.newrolename.value = '';
                }
            }
        }
    }
    return;
}

function setCustomAction(caller) {
    if (document.docustom.customroleaction.length > 0) {
        for (var i=0; i<document.docustom.customroleaction.length; i++) {
            if (document.docustom.customroleaction[i].value == caller) {
                document.docustom.customroleaction[i].checked = true;
            }
        }
    }
    setCustomFields();
    return;
}

// ]]>
</script>
END
    return $js;
}

sub entry_form {
    my ($dom,$srch,$forcenewuser,$context,$responsemsg,$crstype) = @_;
    my ($usertype,$inexact);
    if (ref($srch) eq 'HASH') {
        if (($srch->{'srchin'} eq 'dom') &&
            ($srch->{'srchby'} eq 'uname') &&
            ($srch->{'srchtype'} eq 'exact') &&
            ($srch->{'srchdomain'} ne '') &&
            ($srch->{'srchterm'} ne '')) {
            my (%curr_rules,%got_rules);
            my ($rules,$ruleorder) =
                &Apache::lonnet::inst_userrules($srch->{'srchdomain'},'username');
            $usertype = &Apache::lonuserutils::check_usertype($srch->{'srchdomain'},$srch->{'srchterm'},$rules,\%curr_rules,\%got_rules);
        } else {
            $inexact = 1;
        }
    }
    my $cancreate =
        &Apache::lonuserutils::can_create_user($dom,$context,$usertype);
    my $userpicker = 
       &Apache::loncommon::user_picker($dom,$srch,$forcenewuser,
                                       'document.crtuser',$cancreate,$usertype);
    my $srchbutton = &mt('Search');
    if ($env{'form.action'} eq 'singlestudent') {
        $srchbutton = &mt('Search and Enroll');
    } elsif ($cancreate && $responsemsg ne '' && $inexact) {
        $srchbutton = &mt('Search or Add New User');
    }
    my $output = <<"ENDBLOCK";
<form action="/adm/createuser" method="post" name="crtuser">
<input type="hidden" name="action" value="$env{'form.action'}" />
<input type="hidden" name="phase" value="get_user_info" />
$userpicker
<input name="userrole" type="button" value="$srchbutton" onclick="javascript:validateEntry(document.crtuser)" />
</form>
ENDBLOCK
    if ($env{'form.phase'} eq '') {
        my $defdom=$env{'request.role.domain'};
        my $domform = &Apache::loncommon::select_dom_form($defdom,'srchdomain');
        my %lt=&Apache::lonlocal::texthash(
                  'enro' => 'Enroll one student',
                  'enrm' => 'Enroll one member',
                  'admo' => 'Add/modify a single user',
                  'crea' => 'create new user if required',
                  'uskn' => "username is known",
                  'crnu' => 'Create a new user',
                  'usr'  => 'Username',
                  'dom'  => 'in domain',
                  'enrl' => 'Enroll',
                  'cram'  => 'Create/Modify user',
        );
        my $sellink=&Apache::loncommon::selectstudent_link('crtusername','srchterm','srchdomain');
        my ($title,$buttontext,$showresponse);
        if ($env{'form.action'} eq 'singlestudent') {
            if ($crstype eq 'Community') {
                $title = $lt{'enrm'};
            } else {
                $title = $lt{'enro'};
            }
            $buttontext = $lt{'enrl'};
        } else {
            $title = $lt{'admo'};
            $buttontext = $lt{'cram'};
        }
        if ($cancreate) {
            $title .= ' <span class="LC_cusr_subheading">('.$lt{'crea'}.')</span>';
        } else {
            $title .= ' <span class="LC_cusr_subheading">('.$lt{'uskn'}.')</span>';
        }
        if ($env{'form.origform'} eq 'crtusername') {
            $showresponse = $responsemsg;
        }
        $output .= <<"ENDDOCUMENT";
<br />
<form action="/adm/createuser" method="post" name="crtusername">
<input type="hidden" name="action" value="$env{'form.action'}" />
<input type="hidden" name="phase" value="createnewuser" />
<input type="hidden" name="srchtype" value="exact" />
<input type="hidden" name="srchby" value="uname" />
<input type="hidden" name="srchin" value="dom" />
<input type="hidden" name="forcenewuser" value="1" />
<input type="hidden" name="origform" value="crtusername" />
<h3>$title</h3>
$showresponse
<table>
 <tr>
  <td>$lt{'usr'}:</td>
  <td><input type="text" size="15" name="srchterm" /></td>
  <td>&nbsp;$lt{'dom'}:</td><td>$domform</td>
  <td>&nbsp;$sellink&nbsp;</td>
  <td>&nbsp;<input name="userrole" type="submit" value="$buttontext" /></td>
 </tr>
</table>
</form>
ENDDOCUMENT
    }
    return $output;
}

sub user_modification_js {
    my ($pjump_def,$dc_setcourse_code,$nondc_setsection_code,$groupslist)=@_;
    
    return <<END;
<script type="text/javascript" language="Javascript">
// <![CDATA[

    $pjump_def
    $dc_setcourse_code

    function dateset() {
        eval("document.cu."+document.cu.pres_marker.value+
            ".value=document.cu.pres_value.value");
        modalWindow.close();
    }

    $nondc_setsection_code
// ]]>
</script>
END
}

# =================================================================== Phase two
sub print_user_selection_page {
    my ($r,$response,$srch,$srch_results,$srcharray,$context,$opener_elements,$crstype,$brcrum) = @_;
    my @fields = ('username','domain','lastname','firstname','permanentemail');
    my $sortby = $env{'form.sortby'};

    if (!grep(/^\Q$sortby\E$/,@fields)) {
        $sortby = 'lastname';
    }

    my ($jsback,$elements) = &crumb_utilities();

    my $jscript = (<<ENDSCRIPT);
<script type="text/javascript">
// <![CDATA[
function pickuser(uname,udom) {
    document.usersrchform.seluname.value=uname;
    document.usersrchform.seludom.value=udom;
    document.usersrchform.phase.value="userpicked";
    document.usersrchform.submit();
}

$jsback
// ]]>
</script>
ENDSCRIPT

    my %lt=&Apache::lonlocal::texthash(
                                       'usrch'          => "User Search to add/modify roles",
                                       'stusrch'        => "User Search to enroll student",
                                       'memsrch'        => "User Search to enroll member",
                                       'usel'           => "Select a user to add/modify roles",
                                       'stusel'         => "Select a user to enroll as a student",
                                       'memsel'         => "Select a user to enroll as a member",
                                       'username'       => "username",
                                       'domain'         => "domain",
                                       'lastname'       => "last name",
                                       'firstname'      => "first name",
                                       'permanentemail' => "permanent e-mail",
                                      );
    if ($context eq 'requestcrs') {
        $r->print('<div>');
    } else {
        my %breadcrumb_text = &singleuser_breadcrumb($crstype);
        my $helpitem;
        if ($env{'form.action'} eq 'singleuser') {
            $helpitem = 'Course_Change_Privileges';
        } elsif ($env{'form.action'} eq 'singlestudent') {
            $helpitem = 'Course_Add_Student';
        }
        push (@{$brcrum},
                  {href => "javascript:backPage(document.usersrchform,'','')",
                   text => $breadcrumb_text{'search'},
                   faq  => 282,
                   bug  => 'Instructor Interface',},
                  {href => "javascript:backPage(document.usersrchform,'get_user_info','select')",
                   text => $breadcrumb_text{'userpicked'},
                   faq  => 282,
                   bug  => 'Instructor Interface',
                   help => $helpitem}
                  );
        $r->print(&Apache::loncommon::start_page('User Management',$jscript,{bread_crumbs => $brcrum}));
        if ($env{'form.action'} eq 'singleuser') {
            $r->print("<b>$lt{'usrch'}</b><br />");
            $r->print(&entry_form($srch->{'srchdomain'},$srch,undef,$context,undef,$crstype));
            $r->print('<h3>'.$lt{'usel'}.'</h3>');
        } elsif ($env{'form.action'} eq 'singlestudent') {
            $r->print($jscript."<b>");
            if ($crstype eq 'Community') {
                $r->print($lt{'memsrch'});
            } else {
                $r->print($lt{'stusrch'});
            }
            $r->print("</b><br />");
            $r->print(&entry_form($srch->{'srchdomain'},$srch,undef,$context,undef,$crstype));
            $r->print('</form><h3>');
            if ($crstype eq 'Community') {
                $r->print($lt{'memsel'});
            } else {
                $r->print($lt{'stusel'});
            }
            $r->print('</h3>');
        }
    }
    $r->print('<form name="usersrchform" method="post">'.
              &Apache::loncommon::start_data_table()."\n".
              &Apache::loncommon::start_data_table_header_row()."\n".
              ' <th> </th>'."\n");
    foreach my $field (@fields) {
        $r->print(' <th><a href="javascript:document.usersrchform.sortby.value='.
                  "'".$field."'".';document.usersrchform.submit();">'.
                  $lt{$field}.'</a></th>'."\n");
    }
    $r->print(&Apache::loncommon::end_data_table_header_row());

    my @sorted_users = sort {
        lc($srch_results->{$a}->{$sortby})   cmp lc($srch_results->{$b}->{$sortby})
            ||
        lc($srch_results->{$a}->{lastname})  cmp lc($srch_results->{$b}->{lastname})
            ||
        lc($srch_results->{$a}->{firstname}) cmp lc($srch_results->{$b}->{firstname})
	    ||
	lc($a) cmp lc($b)
        } (keys(%$srch_results));

    foreach my $user (@sorted_users) {
        my ($uname,$udom) = split(/:/,$user);
        my $onclick;
        if ($context eq 'requestcrs') {
            $onclick =
                'onclick="javascript:gochoose('."'$uname','$udom',".
                                               "'$srch_results->{$user}->{firstname}',".
                                               "'$srch_results->{$user}->{lastname}',".
                                               "'$srch_results->{$user}->{permanentemail}'".');"';
        } else {
            $onclick =
                ' onclick="javascript:pickuser('."'".$uname."'".','."'".$udom."'".');"';
        }
        $r->print(&Apache::loncommon::start_data_table_row().
                  '<td><input type="button" name="seluser" value="'.&mt('Select').'" '.
                  $onclick.' /></td>'.
                  '<td><tt>'.$uname.'</tt></td>'.
                  '<td><tt>'.$udom.'</tt></td>');
        foreach my $field ('lastname','firstname','permanentemail') {
            $r->print('<td>'.$srch_results->{$user}->{$field}.'</td>');
        }
        $r->print(&Apache::loncommon::end_data_table_row());
    }
    $r->print(&Apache::loncommon::end_data_table().'<br /><br />');
    if (ref($srcharray) eq 'ARRAY') {
        foreach my $item (@{$srcharray}) {
            $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
        }
    }
    $r->print(' <input type="hidden" name="sortby" value="'.$sortby.'" />'."\n".
              ' <input type="hidden" name="seluname" value="" />'."\n".
              ' <input type="hidden" name="seludom" value="" />'."\n".
              ' <input type="hidden" name="currstate" value="select" />'."\n".
              ' <input type="hidden" name="phase" value="get_user_info" />'."\n".
              ' <input type="hidden" name="action" value="'.$env{'form.action'}.'" />'."\n");
    if ($context eq 'requestcrs') {
        $r->print($opener_elements.'</form></div>');
    } else {
        $r->print($response.'</form>');
    }
}

sub print_user_query_page {
    my ($r,$caller,$brcrum) = @_;
# FIXME - this is for a network-wide name search (similar to catalog search)
# To use frames with similar behavior to catalog/portfolio search.
# To be implemented. 
    return;
}

sub print_user_modification_page {
    my ($r,$ccuname,$ccdomain,$srch,$response,$context,$permission,$crstype,$brcrum) = @_;
    if (($ccuname eq '') || ($ccdomain eq '')) {
        my $usermsg = &mt('No username and/or domain provided.');
        $env{'form.phase'} = '';
	&print_username_entry_form($r,$context,$usermsg,'','',$crstype,$brcrum);
        return;
    }
    my ($form,$formname);
    if ($env{'form.action'} eq 'singlestudent') {
        $form = 'document.enrollstudent';
        $formname = 'enrollstudent';
    } else {
        $form = 'document.cu';
        $formname = 'cu';
    }
    my %abv_auth = &auth_abbrev();
    my (%rulematch,%inst_results,$newuser,%alerts,%curr_rules,%got_rules);
    my $uhome=&Apache::lonnet::homeserver($ccuname,$ccdomain);
    if ($uhome eq 'no_host') {
        my $usertype;
        my ($rules,$ruleorder) =
            &Apache::lonnet::inst_userrules($ccdomain,'username');
            $usertype =
                &Apache::lonuserutils::check_usertype($ccdomain,$ccuname,$rules,
                                                       \%curr_rules,\%got_rules);
        my $cancreate =
            &Apache::lonuserutils::can_create_user($ccdomain,$context,
                                                   $usertype);
        if (!$cancreate) {
            my $helplink = 'javascript:helpMenu('."'display'".')';
            my %usertypetext = (
                official   => 'institutional',
                unofficial => 'non-institutional',
            );
            my $response;
            if ($env{'form.origform'} eq 'crtusername') {
                $response =  '<span class="LC_warning">'.&mt('No match found for the username [_1] in LON-CAPA domain: [_2]','<b>'.$ccuname.'</b>',$ccdomain).
                            '</span><br />';
            }
            $response .= '<p class="LC_warning">'
                        .&mt("You are not authorized to create new $usertypetext{$usertype} users in this domain.")
                        .' '
                        .&mt('Please contact the [_1]helpdesk[_2] for assistance.'
                            ,'<a href="'.$helplink.'">','</a>')
                        .'</p><br />';
            $env{'form.phase'} = '';
            &print_username_entry_form($r,$context,$response,undef,undef,$crstype,$brcrum);
            return;
        }
        $newuser = 1;
        my $checkhash;
        my $checks = { 'username' => 1 };
        $checkhash->{$ccuname.':'.$ccdomain} = { 'newuser' => $newuser };
        &Apache::loncommon::user_rule_check($checkhash,$checks,
            \%alerts,\%rulematch,\%inst_results,\%curr_rules,\%got_rules);
        if (ref($alerts{'username'}) eq 'HASH') {
            if (ref($alerts{'username'}{$ccdomain}) eq 'HASH') {
                my $domdesc =
                    &Apache::lonnet::domain($ccdomain,'description');
                if ($alerts{'username'}{$ccdomain}{$ccuname}) {
                    my $userchkmsg;
                    if (ref($curr_rules{$ccdomain}) eq 'HASH') {  
                        $userchkmsg = 
                            &Apache::loncommon::instrule_disallow_msg('username',
                                                                 $domdesc,1).
                        &Apache::loncommon::user_rule_formats($ccdomain,
                            $domdesc,$curr_rules{$ccdomain}{'username'},
                            'username');
                    }
                    $env{'form.phase'} = '';
                    &print_username_entry_form($r,$context,$userchkmsg,undef,undef,$crstype,$brcrum);
                    return;
                }
            }
        }
    } else {
        $newuser = 0;
    }
    if ($response) {
        $response = '<br />'.$response;
    }

    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
    my $dc_setcourse_code = '';
    my $nondc_setsection_code = '';                                        
    my %loaditem;

    my $groupslist = &Apache::lonuserutils::get_groupslist();

    my $js = &validation_javascript($context,$ccdomain,$pjump_def,
                               $groupslist,$newuser,$formname,\%loaditem);
    my %breadcrumb_text = &singleuser_breadcrumb($crstype);
    my $helpitem = 'Course_Change_Privileges';
    if ($env{'form.action'} eq 'singlestudent') {
        $helpitem = 'Course_Add_Student';
    }
    push (@{$brcrum},
        {href => "javascript:backPage($form)",
         text => $breadcrumb_text{'search'},
         faq  => 282,
         bug  => 'Instructor Interface',});
    if ($env{'form.phase'} eq 'userpicked') {
       push(@{$brcrum},
              {href => "javascript:backPage($form,'get_user_info','select')",
               text => $breadcrumb_text{'userpicked'},
               faq  => 282,
               bug  => 'Instructor Interface',});
    }
    push(@{$brcrum},
            {href => "javascript:backPage($form,'$env{'form.phase'}','modify')",
             text => $breadcrumb_text{'modify'},
             faq  => 282,
             bug  => 'Instructor Interface',
             help => $helpitem});
    my $args = {'add_entries'           => \%loaditem,
                'bread_crumbs'          => $brcrum,
                'bread_crumbs_component' => 'User Management'};
    if ($env{'form.popup'}) {
        $args->{'no_nav_bar'} = 1;
    }
    my $start_page =
        &Apache::loncommon::start_page('User Management',$js,$args);

    my $forminfo =<<"ENDFORMINFO";
<form action="/adm/createuser" method="post" name="$formname">
<input type="hidden" name="phase" value="update_user_data" />
<input type="hidden" name="ccuname" value="$ccuname" />
<input type="hidden" name="ccdomain" value="$ccdomain" />
<input type="hidden" name="pres_value"  value="" />
<input type="hidden" name="pres_type"   value="" />
<input type="hidden" name="pres_marker" value="" />
ENDFORMINFO
    my (%inccourses,$roledom);
    if ($context eq 'course') {
        $inccourses{$env{'request.course.id'}}=1;
        $roledom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    } elsif ($context eq 'author') {
        $roledom = $env{'request.role.domain'};
    } elsif ($context eq 'domain') {
        foreach my $key (keys(%env)) {
            $roledom = $env{'request.role.domain'};
            if ($key=~/^user\.priv\.cm\.\/($roledom)\/($match_username)/) {
                $inccourses{$1.'_'.$2}=1;
            }
        }
    } else {
        foreach my $key (keys(%env)) {
	    if ($key=~/^user\.priv\.cm\.\/($match_domain)\/($match_username)/) {
	        $inccourses{$1.'_'.$2}=1;
            }
        }
    }
    if ($newuser) {
        my $portfolioform;
        if ((&Apache::lonnet::allowed('mpq',$env{'request.role.domain'})) ||
            (&Apache::lonnet::allowed('mut',$env{'request.role.domain'}))) {
            # Current user has quota or user tools modification privileges
            $portfolioform = '<br />'.&portfolio_quota($ccuname,$ccdomain);
        }
        &initialize_authen_forms($ccdomain,$formname);
        my %lt=&Apache::lonlocal::texthash(
                'cnu'            => 'Create New User',
                'ast'            => 'as a student',
                'ame'            => 'as a member',
                'ind'            => 'in domain',
                'lg'             => 'Login Data',
                'hs'             => "Home Server",
        );
	$r->print(<<ENDTITLE);
$start_page
$response
$forminfo
<script type="text/javascript" language="Javascript">
// <![CDATA[
$loginscript
// ]]>
</script>
<input type='hidden' name='makeuser' value='1' />
<h2>$lt{'cnu'} "$ccuname" $lt{'ind'} $ccdomain
ENDTITLE
        if ($env{'form.action'} eq 'singlestudent') {
            if ($crstype eq 'Community') {
                $r->print(' ('.$lt{'ame'}.')');
            } else {
                $r->print(' ('.$lt{'ast'}.')');
            }
        }
        $r->print('</h2>'."\n".'<div class="LC_left_float">');
        my $personal_table = 
            &personal_data_display($ccuname,$ccdomain,$newuser,$context,
                                   $inst_results{$ccuname.':'.$ccdomain});
        $r->print($personal_table);
        my ($home_server_pick,$numlib) = 
            &Apache::loncommon::home_server_form_item($ccdomain,'hserver',
                                                      'default','hide');
        if ($numlib > 1) {
            $r->print("
<br />
$lt{'hs'}: $home_server_pick
<br />");
        } else {
            $r->print($home_server_pick);
        }
        if (&Apache::lonnet::allowed('ccc',$env{'request.role.domain'})) {
            $r->print('<br /><h3>'.&mt('User Can Request Creation of Courses/Communities in this Domain?').'</h3>'.
                      &Apache::loncommon::start_data_table().
                      &build_tools_display($ccuname,$ccdomain,
                                           'requestcourses').
                      &Apache::loncommon::end_data_table());
        }
        $r->print('</div>'."\n".'<div class="LC_left_float"><h3>'.
                  $lt{'lg'}.'</h3>');
        my ($fixedauth,$varauth,$authmsg); 
        if (ref($rulematch{$ccuname.':'.$ccdomain}) eq 'HASH') {
            my $matchedrule = $rulematch{$ccuname.':'.$ccdomain}{'username'};
            my ($rules,$ruleorder) = 
                &Apache::lonnet::inst_userrules($ccdomain,'username');
            if (ref($rules) eq 'HASH') {
                if (ref($rules->{$matchedrule}) eq 'HASH') {
                    my $authtype = $rules->{$matchedrule}{'authtype'};
                    if ($authtype !~ /^(krb4|krb5|int|fsys|loc)$/) {
                        $r->print(&Apache::lonuserutils::set_login($ccdomain,$authformkrb,$authformint,$authformloc));
                    } else { 
                        my $authparm = $rules->{$matchedrule}{'authparm'};
                        $authmsg = $rules->{$matchedrule}{'authmsg'};
                        if ($authtype =~ /^krb(4|5)$/) {
                            my $ver = $1;
                            if ($authparm ne '') {
                                $fixedauth = <<"KERB"; 
<input type="hidden" name="login" value="krb" />
<input type="hidden" name="krbver" value="$ver" />
<input type="hidden" name="krbarg" value="$authparm" />
KERB
                            }
                        } else {
                            $fixedauth = 
'<input type="hidden" name="login" value="'.$authtype.'" />'."\n";
                            if ($rules->{$matchedrule}{'authparmfixed'}) {
                                $fixedauth .=    
'<input type="hidden" name="'.$authtype.'arg" value="'.$authparm.'" />'."\n";
                            } else {
                                if ($authtype eq 'int') {
                                    $varauth = '<br />'.
&mt('[_1] Internally authenticated (with initial password [_2])','','<input type="password" size="10" name="intarg" value="" />')."<label><input type=\"checkbox\" name=\"visible\" onclick='if (this.checked) { this.form.intarg.type=\"text\" } else { this.form.intarg.type=\"password\" }' />".&mt('Visible input').'</label>';
                                } elsif ($authtype eq 'loc') {
                                    $varauth = '<br />'.
&mt('[_1] Local Authentication with argument [_2]','','<input type="text" name="'.$authtype.'arg" value="" />')."\n";
                                } else {
                                    $varauth =
'<input type="text" name="'.$authtype.'arg" value="" />'."\n";
                                }
                            }
                        }
                    }
                } else {
                    $r->print(&Apache::lonuserutils::set_login($ccdomain,$authformkrb,$authformint,$authformloc));
                }
            }
            if ($authmsg) {
                $r->print(<<ENDAUTH);
$fixedauth
$authmsg
$varauth
ENDAUTH
            }
        } else {
            $r->print(&Apache::lonuserutils::set_login($ccdomain,$authformkrb,$authformint,$authformloc)); 
        }
        $r->print($portfolioform);
        if ($env{'form.action'} eq 'singlestudent') {
            $r->print(&date_sections_select($context,$newuser,$formname,
                                            $permission));
        }
        $r->print('</div><div class="LC_clear_float_footer"></div>');
    } else { # user already exists
	my %lt=&Apache::lonlocal::texthash(
                    'cup'  => "Modify existing user: ",
                    'ens'  => "Enroll one student: ",
                    'enm'  => "Enroll one member: ",
                    'id'   => "in domain",
				       );
	$r->print(<<ENDCHANGEUSER);
$start_page
$forminfo
<h2>
ENDCHANGEUSER
        if ($env{'form.action'} eq 'singlestudent') {
            if ($crstype eq 'Community') {
                $r->print($lt{'enm'});
            } else {
                $r->print($lt{'ens'});
            }
        } else {
            $r->print($lt{'cup'});
        }
        $r->print(' "'.$ccuname.'" '.$lt{'id'}.' "'.$ccdomain.'"</h2>'.
                  "\n".'<div class="LC_left_float">');
        my ($personal_table,$showforceid) = 
            &personal_data_display($ccuname,$ccdomain,$newuser,$context,
                                   $inst_results{$ccuname.':'.$ccdomain});
        $r->print($personal_table);
        if ($showforceid) {
            $r->print(&Apache::lonuserutils::forceid_change($context));
        }
        if (&Apache::lonnet::allowed('ccc',$env{'request.role.domain'})) {
            $r->print('<h3>'.&mt('User Can Request Creation of Courses/Communities in this Domain?').'</h3>'.
                      &Apache::loncommon::start_data_table());
            if ($env{'request.role.domain'} eq $ccdomain) {
                $r->print(&build_tools_display($ccuname,$ccdomain,'requestcourses'));
            } else {
                $r->print(&coursereq_externaluser($ccuname,$ccdomain,
                                                  $env{'request.role.domain'}));
            }
            $r->print(&Apache::loncommon::end_data_table());
        }
        $r->print('</div>');
        my $user_auth_text =  &user_authentication($ccuname,$ccdomain,$formname);
        my ($user_quota_text,$user_tools_text,$user_reqcrs_text);
        if ((&Apache::lonnet::allowed('mpq',$ccdomain)) ||
            (&Apache::lonnet::allowed('mut',$ccdomain))) {
            # Current user has quota modification privileges
            $user_quota_text = &portfolio_quota($ccuname,$ccdomain);
        }
        if (!&Apache::lonnet::allowed('mpq',$ccdomain)) {
            if (&Apache::lonnet::allowed('mpq',$env{'request.role.domain'})) {
                # Get the user's portfolio information
                my %portq = &Apache::lonnet::get('environment',['portfolioquota'],
                                                 $ccdomain,$ccuname);
                my %lt=&Apache::lonlocal::texthash(
                    'dska'  => "Disk space allocated to user's portfolio files",
                    'youd'  => "You do not have privileges to modify the portfolio quota for this user.",
                    'ichr'  => "If a change is required, contact a domain coordinator for the domain",
                );
                $user_quota_text = <<ENDNOPORTPRIV;
<h3>$lt{'dska'}</h3>
$lt{'youd'} $lt{'ichr'}: $ccdomain
ENDNOPORTPRIV
            }
        }
        if (!&Apache::lonnet::allowed('mut',$ccdomain)) {
            if (&Apache::lonnet::allowed('mut',$env{'request.role.domain'})) {
                my %lt=&Apache::lonlocal::texthash(
                    'utav'  => "User Tools Availability",
                    'yodo'  => "You do not have privileges to modify Portfolio, Blog or Personal Information Page settings for this user.",
                    'ifch'  => "If a change is required, contact a domain coordinator for the domain",
                );
                $user_tools_text = <<ENDNOTOOLSPRIV;
<h3>$lt{'utav'}</h3>
$lt{'yodo'} $lt{'ifch'}: $ccdomain
ENDNOTOOLSPRIV
            }
        }
        if ($user_auth_text ne '') {
            $r->print('<div class="LC_left_float">'.$user_auth_text);
            if ($user_quota_text ne '') {
                $r->print($user_quota_text);
            }
            if ($user_tools_text ne '') {
                $r->print($user_tools_text);
            }
            if ($env{'form.action'} eq 'singlestudent') {
                $r->print(&date_sections_select($context,$newuser,$formname));
            }
        } elsif ($user_quota_text ne '') {
            $r->print('<div class="LC_left_float">'.$user_quota_text);
            if ($user_tools_text ne '') {
                $r->print($user_tools_text);
            }
            if ($env{'form.action'} eq 'singlestudent') {
                $r->print(&date_sections_select($context,$newuser,$formname));
            }
        } elsif ($user_tools_text ne '') {
            $r->print('<div class="LC_left_float">'.$user_tools_text);
            if ($env{'form.action'} eq 'singlestudent') {
                $r->print(&date_sections_select($context,$newuser,$formname));
            }
        } else {
            if ($env{'form.action'} eq 'singlestudent') {
                $r->print('<div class="LC_left_float">'.
                          &date_sections_select($context,$newuser,$formname));
            }
        }
        $r->print('</div><div class="LC_clear_float_footer"></div>');
        if ($env{'form.action'} ne 'singlestudent') {
            &display_existing_roles($r,$ccuname,$ccdomain,\%inccourses,$context,
                                    $roledom,$crstype);
        }
    } ## End of new user/old user logic
    if ($env{'form.action'} eq 'singlestudent') {
        my $btntxt;
        if ($crstype eq 'Community') {
            $btntxt = &mt('Enroll Member');
        } else {
            $btntxt = &mt('Enroll Student');
        }
        $r->print('<br /><input type="button" value="'.$btntxt.'" onclick="setSections(this.form)" />'."\n");
    } else {
        $r->print('<h3>'.&mt('Add Roles').'</h3>');
        my $addrolesdisplay = 0;
        if ($context eq 'domain' || $context eq 'author') {
            $addrolesdisplay = &new_coauthor_roles($r,$ccuname,$ccdomain);
        }
        if ($context eq 'domain') {
            my $add_domainroles = &new_domain_roles($r,$ccdomain);
            if (!$addrolesdisplay) {
                $addrolesdisplay = $add_domainroles;
            }
            $r->print(&course_level_dc($env{'request.role.domain'},'Course'));
            $r->print('<br /><input type="button" value="'.&mt('Save').'" onclick="setCourse()" />'."\n");
        } elsif ($context eq 'author') {
            if ($addrolesdisplay) {
                $r->print('<br /><input type="button" value="'.&mt('Save').'"');
                if ($newuser) {
                    $r->print(' onclick="auth_check()" \>'."\n");
                } else {
                    $r->print('onclick="this.form.submit()" \>'."\n");
                }
            } else {
                $r->print('<br /><a href="javascript:backPage(document.cu)">'.
                          &mt('Back to previous page').'</a>');
            }
        } else {
            $r->print(&course_level_table(%inccourses));
            $r->print('<br /><input type="button" value="'.&mt('Save').'" onclick="setSections(this.form)" />'."\n");
        }
    }
    $r->print(&Apache::lonhtmlcommon::echo_form_input(['phase','userrole','ccdomain','prevphase','currstate','ccuname','ccdomain']));
    $r->print('<input type="hidden" name="currstate" value="" />');
    $r->print('<input type="hidden" name="prevphase" value="'.$env{'form.phase'}.'" /></form>');
    return;
}

sub singleuser_breadcrumb {
    my ($crstype) = @_;
    my %breadcrumb_text;
    if ($env{'form.action'} eq 'singlestudent') {
        if ($crstype eq 'Community') {
            $breadcrumb_text{'search'} = 'Enroll a member';
        } else {
            $breadcrumb_text{'search'} = 'Enroll a student';
        }
        $breadcrumb_text{'userpicked'} = 'Select a user',
        $breadcrumb_text{'modify'} = 'Set section/dates',
    } else {
        $breadcrumb_text{'search'} = 'Create/modify a user';
        $breadcrumb_text{'userpicked'} = 'Select a user',
        $breadcrumb_text{'modify'} = 'Set user role',
    }
    return %breadcrumb_text;
}

sub date_sections_select {
    my ($context,$newuser,$formname,$permission) = @_;
    my $cid = $env{'request.course.id'};
    my ($cnum,$cdom) = &Apache::lonuserutils::get_course_identity($cid);
    my $date_table = '<h3>'.&mt('Starting and Ending Dates').'</h3>'."\n".
        &Apache::lonuserutils::date_setting_table(undef,undef,$context,
                                                  undef,$formname,$permission);
    my $rowtitle = 'Section';
    my $secbox = '<h3>'.&mt('Section').'</h3>'."\n".
        &Apache::lonuserutils::section_picker($cdom,$cnum,'st',$rowtitle,
                                              $permission);
    my $output = $date_table.$secbox;
    return $output;
}

sub validation_javascript {
    my ($context,$ccdomain,$pjump_def,$groupslist,$newuser,$formname,
        $loaditem) = @_;
    my $dc_setcourse_code = '';
    my $nondc_setsection_code = '';
    if ($context eq 'domain') {
        my $dcdom = $env{'request.role.domain'};
        $loaditem->{'onload'} = "document.cu.coursedesc.value='';";
        $dc_setcourse_code = 
            &Apache::lonuserutils::dc_setcourse_js('cu','singleuser',$context);
    } else {
        my $checkauth; 
        if (($newuser) || (&Apache::lonnet::allowed('mau',$ccdomain))) {
            $checkauth = 1;
        }
        if ($context eq 'course') {
            $nondc_setsection_code =
                &Apache::lonuserutils::setsections_javascript($formname,$groupslist,
                                                              undef,$checkauth);
        }
        if ($checkauth) {
            $nondc_setsection_code .= 
                &Apache::lonuserutils::verify_authen($formname,$context);
        }
    }
    my $js = &user_modification_js($pjump_def,$dc_setcourse_code,
                                   $nondc_setsection_code,$groupslist);
    my ($jsback,$elements) = &crumb_utilities();
    $js .= "\n".
           '<script type="text/javascript">'."\n".
           '// <![CDATA['."\n".
           $jsback."\n".
           '// ]]>'."\n".
           '</script>'."\n";
    return $js;
}

sub display_existing_roles {
    my ($r,$ccuname,$ccdomain,$inccourses,$context,$roledom,$crstype) = @_;
    my $now=time;
    my %lt=&Apache::lonlocal::texthash(
                    'rer'  => "Existing Roles",
                    'rev'  => "Revoke",
                    'del'  => "Delete",
                    'ren'  => "Re-Enable",
                    'rol'  => "Role",
                    'ext'  => "Extent",
                    'sta'  => "Start",
                    'end'  => "End",
                                       );
    my (%rolesdump,%roletext,%sortrole,%roleclass,%rolepriv);
    if ($context eq 'course' || $context eq 'author') {
        my @roles = &Apache::lonuserutils::roles_by_context($context,1,$crstype);
        my %roleshash = 
            &Apache::lonnet::get_my_roles($ccuname,$ccdomain,'userroles',
                              ['active','previous','future'],\@roles,$roledom,1);
        foreach my $key (keys(%roleshash)) {
            my ($start,$end) = split(':',$roleshash{$key});
            next if ($start eq '-1' || $end eq '-1');
            my ($rnum,$rdom,$role,$sec) = split(':',$key);
            if ($context eq 'course') {
                next unless (($rnum eq $env{'course.'.$env{'request.course.id'}.'.num'})
                             && ($rdom eq $env{'course.'.$env{'request.course.id'}.'.domain'}));
            } elsif ($context eq 'author') {
                next unless (($rnum eq $env{'user.name'}) && ($rdom eq $env{'request.role.domain'}));
            }
            my ($newkey,$newvalue,$newrole);
            $newkey = '/'.$rdom.'/'.$rnum;
            if ($sec ne '') {
                $newkey .= '/'.$sec;
            }
            $newvalue = $role;
            if ($role =~ /^cr/) {
                $newrole = 'cr';
            } else {
                $newrole = $role;
            }
            $newkey .= '_'.$newrole;
            if ($start ne '' && $end ne '') {
                $newvalue .= '_'.$end.'_'.$start;
            } elsif ($end ne '') {
                $newvalue .= '_'.$end;
            }
            $rolesdump{$newkey} = $newvalue;
        }
    } else {
        %rolesdump=&Apache::lonnet::dump('roles',$ccdomain,$ccuname);
    }
    # Build up table of user roles to allow revocation and re-enabling of roles.
    my ($tmp) = keys(%rolesdump);
    return if ($tmp =~ /^(con_lost|error)/i);
    foreach my $area (sort { my $a1=join('_',(split('_',$a))[1,0]);
                                my $b1=join('_',(split('_',$b))[1,0]);
                                return $a1 cmp $b1;
                            } keys(%rolesdump)) {
        next if ($area =~ /^rolesdef/);
        my $envkey=$area;
        my $role = $rolesdump{$area};
        my $thisrole=$area;
        $area =~ s/\_\w\w$//;
        my ($role_code,$role_end_time,$role_start_time) =
            split(/_/,$role);
# Is this a custom role? Get role owner and title.
        my ($croleudom,$croleuname,$croletitle)=
            ($role_code=~m{^cr/($match_domain)/($match_username)/(\w+)$});
        my $allowed=0;
        my $delallowed=0;
        my $sortkey=$role_code;
        my $class='Unknown';
        if ($area =~ m{^/($match_domain)/($match_courseid)} ) {
            $class='Course';
            my ($coursedom,$coursedir) = ($1,$2);
            my $cid = $1.'_'.$2;
            # $1.'_'.$2 is the course id (eg. 103_12345abcef103l3).
            my %coursedata=
                &Apache::lonnet::coursedescription($cid);
            if ($coursedir =~ /^$match_community$/) {
                $class='Community';
            }
            $sortkey.="\0$coursedom";
            my $carea;
            if (defined($coursedata{'description'})) {
                $carea=$coursedata{'description'}.
                    '<br />'.&mt('Domain').': '.$coursedom.('&nbsp;'x8).
    &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$coursedir,$coursedom);
                $sortkey.="\0".$coursedata{'description'};
            } else {
                if ($class eq 'Community') {
                    $carea=&mt('Unavailable community').': '.$area;
                    $sortkey.="\0".&mt('Unavailable community').': '.$area;
                } else {
                    $carea=&mt('Unavailable course').': '.$area;
                    $sortkey.="\0".&mt('Unavailable course').': '.$area;
                }
            }
            $sortkey.="\0$coursedir";
            $inccourses->{$cid}=1;
            if ((&Apache::lonnet::allowed('c'.$role_code,$coursedom.'/'.$coursedir)) ||
                (&Apache::lonnet::allowed('c'.$role_code,$ccdomain))) {
                $allowed=1;
            }
            unless ($allowed) {
                my $isowner = &is_courseowner($cid,$coursedata{'internal.courseowner'});
                if ($isowner) {
                    if (($role_code eq 'co') && ($class eq 'Community')) {
                        $allowed = 1;
                    } elsif (($role_code eq 'cc') && ($class eq 'Course')) {
                        $allowed = 1;
                    }
                }
            } 
            if ((&Apache::lonnet::allowed('dro',$coursedom)) ||
                (&Apache::lonnet::allowed('dro',$ccdomain))) {
                $delallowed=1;
            }
# - custom role. Needs more info, too
            if ($croletitle) {
                if (&Apache::lonnet::allowed('ccr',$coursedom.'/'.$coursedir)) {
                    $allowed=1;
                    $thisrole.='.'.$role_code;
                }
            }
            if ($area=~m{^/($match_domain)/($match_courseid)/(\w+)}) {
                $carea.='<br />Section: '.$3;
                $sortkey.="\0$3";
                if (!$allowed) {
                    if ($env{'request.course.sec'} eq $3) {
                        if (&Apache::lonnet::allowed('c'.$role_code,$1.'/'.$2.'/'.$3)) {
                            $allowed = 1;
                        }
                    }
                }
            }
            $area=$carea;
        } else {
            $sortkey.="\0".$area;
            # Determine if current user is able to revoke privileges
            if ($area=~m{^/($match_domain)/}) {
                if ((&Apache::lonnet::allowed('c'.$role_code,$1)) ||
                   (&Apache::lonnet::allowed('c'.$role_code,$ccdomain))) {
                   $allowed=1;
                }
                if (((&Apache::lonnet::allowed('dro',$1))  ||
                    (&Apache::lonnet::allowed('dro',$ccdomain))) &&
                    ($role_code ne 'dc')) {
                    $delallowed=1;
                }
            } else {
                if (&Apache::lonnet::allowed('c'.$role_code,'/')) {
                    $allowed=1;
                }
            }
            if ($role_code eq 'ca' || $role_code eq 'au') {
                $class='Construction Space';
            } elsif ($role_code eq 'su') {
                $class='System';
            } else {
                $class='Domain';
            }
        }
        if (($role_code eq 'ca') || ($role_code eq 'aa')) {
            $area=~m{/($match_domain)/($match_username)};
            if (&Apache::lonuserutils::authorpriv($2,$1)) {
                $allowed=1;
            } else {
                $allowed=0;
            }
        }
        my $row = '';
        $row.= '<td>';
        my $active=1;
        $active=0 if (($role_end_time) && ($now>$role_end_time));
        if (($active) && ($allowed)) {
            $row.= '<input type="checkbox" name="rev:'.$thisrole.'" />';
        } else {
            if ($active) {
               $row.='&nbsp;';
            } else {
               $row.=&mt('expired or revoked');
            }
        }
        $row.='</td><td>';
        if ($allowed && !$active) {
            $row.= '<input type="checkbox" name="ren:'.$thisrole.'" />';
        } else {
            $row.='&nbsp;';
        }
        $row.='</td><td>';
        if ($delallowed) {
            $row.= '<input type="checkbox" name="del:'.$thisrole.'" />';
        } else {
            $row.='&nbsp;';
        }
        my $plaintext='';
        if (!$croletitle) {
            $plaintext=&Apache::lonnet::plaintext($role_code,$class)
        } else {
            $plaintext=
                &mt('Customrole [_1][_2]defined by [_3]',
                        '"'.$croletitle.'"',
                        '<br />',
                        $croleuname.':'.$croleudom);
        }
        $row.= '</td><td>'.$plaintext.
               '</td><td>'.$area.
               '</td><td>'.($role_start_time?&Apache::lonlocal::locallocaltime($role_start_time)
                                            : '&nbsp;' ).
               '</td><td>'.($role_end_time  ?&Apache::lonlocal::locallocaltime($role_end_time)
                                            : '&nbsp;' )
               ."</td>";
        $sortrole{$sortkey}=$envkey;
        $roletext{$envkey}=$row;
        $roleclass{$envkey}=$class;
        $rolepriv{$envkey}=$allowed;
    } # end of foreach        (table building loop)

    my $rolesdisplay = 0;
    my %output = ();
    foreach my $type ('Construction Space','Course','Community','Domain','System','Unknown') {
        $output{$type} = '';
        foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
            if ( ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/ ) && ($rolepriv{$sortrole{$which}}) ) {
                 $output{$type}.=
                      &Apache::loncommon::start_data_table_row().
                      $roletext{$sortrole{$which}}.
                      &Apache::loncommon::end_data_table_row();
            }
        }
        unless($output{$type} eq '') {
            $output{$type} = '<tr class="LC_info_row">'.
                      "<td align='center' colspan='7'>".&mt($type)."</td></tr>".
                      $output{$type};
            $rolesdisplay = 1;
        }
    }
    if ($rolesdisplay == 1) {
        my $contextrole='';
        if ($env{'request.course.id'}) {
            if (&Apache::loncommon::course_type() eq 'Community') {
                $contextrole = &mt('Existing Roles in this Community');
            } else {
                $contextrole = &mt('Existing Roles in this Course');
            }
        } elsif ($env{'request.role'} =~ /^au\./) {
            $contextrole = &mt('Existing Co-Author Roles in your Construction Space');
        } else {
            $contextrole = &mt('Existing Roles in this Domain');
        }
        $r->print('
<h3>'.$lt{'rer'}.'</h3>'.
'<div>'.$contextrole.'</div>'.
&Apache::loncommon::start_data_table("LC_createuser").
&Apache::loncommon::start_data_table_header_row().
'<th>'.$lt{'rev'}.'</th><th>'.$lt{'ren'}.'</th><th>'.$lt{'del'}.
'</th><th>'.$lt{'rol'}.'</th><th>'.$lt{'ext'}.
'</th><th>'.$lt{'sta'}.'</th><th>'.$lt{'end'}.'</th>'.
&Apache::loncommon::end_data_table_header_row());
        foreach my $type ('Construction Space','Course','Community','Domain','System','Unknown') {
            if ($output{$type}) {
                $r->print($output{$type}."\n");
            }
        }
        $r->print(&Apache::loncommon::end_data_table());
    }
    return;
}

sub new_coauthor_roles {
    my ($r,$ccuname,$ccdomain) = @_;
    my $addrolesdisplay = 0;
    #
    # Co-Author
    #
    if (&Apache::lonuserutils::authorpriv($env{'user.name'},
                                          $env{'request.role.domain'}) &&
        ($env{'user.name'} ne $ccuname || $env{'user.domain'} ne $ccdomain)) {
        # No sense in assigning co-author role to yourself
        $addrolesdisplay = 1;
        my $cuname=$env{'user.name'};
        my $cudom=$env{'request.role.domain'};
        my %lt=&Apache::lonlocal::texthash(
                    'cs'   => "Construction Space",
                    'act'  => "Activate",
                    'rol'  => "Role",
                    'ext'  => "Extent",
                    'sta'  => "Start",
                    'end'  => "End",
                    'cau'  => "Co-Author",
                    'caa'  => "Assistant Co-Author",
                    'ssd'  => "Set Start Date",
                    'sed'  => "Set End Date"
                                       );
        $r->print('<h4>'.$lt{'cs'}.'</h4>'."\n".
                  &Apache::loncommon::start_data_table()."\n".
                  &Apache::loncommon::start_data_table_header_row()."\n".
                  '<th>'.$lt{'act'}.'</th><th>'.$lt{'rol'}.'</th>'.
                  '<th>'.$lt{'ext'}.'</th><th>'.$lt{'sta'}.'</th>'.
                  '<th>'.$lt{'end'}.'</th>'."\n".
                  &Apache::loncommon::end_data_table_header_row()."\n".
                  &Apache::loncommon::start_data_table_row().'
           <td>
            <input type="checkbox" name="act_'.$cudom.'_'.$cuname.'_ca" />
           </td>
           <td>'.$lt{'cau'}.'</td>
           <td>'.$cudom.'_'.$cuname.'</td>
           <td><input type="hidden" name="start_'.$cudom.'_'.$cuname.'_ca" value="" />
             <a href=
"javascript:pjump('."'date_start','Start Date Co-Author',document.cu.start_$cudom\_$cuname\_ca.value,'start_$cudom\_$cuname\_ca','cu.pres','dateset'".')">'.$lt{'ssd'}.'</a></td>
<td><input type="hidden" name="end_'.$cudom.'_'.$cuname.'_ca" value="" />
<a href=
"javascript:pjump('."'date_end','End Date Co-Author',document.cu.end_$cudom\_$cuname\_ca.value,'end_$cudom\_$cuname\_ca','cu.pres','dateset'".')">'.$lt{'sed'}.'</a></td>'."\n".
              &Apache::loncommon::end_data_table_row()."\n".
              &Apache::loncommon::start_data_table_row()."\n".
'<td><input type="checkbox" name="act_'.$cudom.'_'.$cuname.'_aa" /></td>
<td>'.$lt{'caa'}.'</td>
<td>'.$cudom.'_'.$cuname.'</td>
<td><input type="hidden" name="start_'.$cudom.'_'.$cuname.'_aa" value="" />
<a href=
"javascript:pjump('."'date_start','Start Date Assistant Co-Author',document.cu.start_$cudom\_$cuname\_aa.value,'start_$cudom\_$cuname\_aa','cu.pres','dateset'".')">'.$lt{'ssd'}.'</a></td>
<td><input type="hidden" name="end_'.$cudom.'_'.$cuname.'_aa" value="" />
<a href=
"javascript:pjump('."'date_end','End Date Assistant Co-Author',document.cu.end_$cudom\_$cuname\_aa.value,'end_$cudom\_$cuname\_aa','cu.pres','dateset'".')">'.$lt{'sed'}.'</a></td>'."\n".
             &Apache::loncommon::end_data_table_row()."\n".
             &Apache::loncommon::end_data_table());
    } elsif ($env{'request.role'} =~ /^au\./) {
        if (!(&Apache::lonuserutils::authorpriv($env{'user.name'},
                                                $env{'request.role.domain'}))) {
            $r->print('<span class="LC_error">'.
                      &mt('You do not have privileges to assign co-author roles.').
                      '</span>');
        } elsif (($env{'user.name'} eq $ccuname) &&
             ($env{'user.domain'} eq $ccdomain)) {
            $r->print(&mt('Assigning yourself a co-author or assistant co-author role in your own author area in Construction Space is not permitted'));
        }
    }
    return $addrolesdisplay;;
}

sub new_domain_roles {
    my ($r,$ccdomain) = @_;
    my $addrolesdisplay = 0;
    #
    # Domain level
    #
    my $num_domain_level = 0;
    my $domaintext =
    '<h4>'.&mt('Domain Level').'</h4>'.
    &Apache::loncommon::start_data_table().
    &Apache::loncommon::start_data_table_header_row().
    '<th>'.&mt('Activate').'</th><th>'.&mt('Role').'</th><th>'.
    &mt('Extent').'</th>'.
    '<th>'.&mt('Start').'</th><th>'.&mt('End').'</th>'.
    &Apache::loncommon::end_data_table_header_row();
    my @allroles = &Apache::lonuserutils::roles_by_context('domain');
    foreach my $thisdomain (sort(&Apache::lonnet::all_domains())) {
        foreach my $role (@allroles) {
            next if ($role eq 'ad');
            next if (($role eq 'au') && ($ccdomain ne $thisdomain));
            if (&Apache::lonnet::allowed('c'.$role,$thisdomain)) {
               my $plrole=&Apache::lonnet::plaintext($role);
               my %lt=&Apache::lonlocal::texthash(
                    'ssd'  => "Set Start Date",
                    'sed'  => "Set End Date"
                                       );
               $num_domain_level ++;
               $domaintext .=
&Apache::loncommon::start_data_table_row().
'<td><input type="checkbox" name="act_'.$thisdomain.'_'.$role.'" /></td>
<td>'.$plrole.'</td>
<td>'.$thisdomain.'</td>
<td><input type="hidden" name="start_'.$thisdomain.'_'.$role.'" value="" />
<a href=
"javascript:pjump('."'date_start','Start Date $plrole',document.cu.start_$thisdomain\_$role.value,'start_$thisdomain\_$role','cu.pres','dateset'".')">'.$lt{'ssd'}.'</a></td>
<td><input type="hidden" name="end_'.$thisdomain.'_'.$role.'" value="" />
<a href=
"javascript:pjump('."'date_end','End Date $plrole',document.cu.end_$thisdomain\_$role.value,'end_$thisdomain\_$role','cu.pres','dateset'".')">'.$lt{'sed'}.'</a></td>'.
&Apache::loncommon::end_data_table_row();
            }
        }
    }
    $domaintext.= &Apache::loncommon::end_data_table();
    if ($num_domain_level > 0) {
        $r->print($domaintext);
        $addrolesdisplay = 1;
    }
    return $addrolesdisplay;
}

sub user_authentication {
    my ($ccuname,$ccdomain,$formname) = @_;
    my $currentauth=&Apache::lonnet::queryauthenticate($ccuname,$ccdomain);
    my $outcome;
    # Check for a bad authentication type
    if ($currentauth !~ /^(krb4|krb5|unix|internal|localauth):/) {
        # bad authentication scheme
        my %lt=&Apache::lonlocal::texthash(
                       'err'   => "ERROR",
                       'uuas'  => "This user has an unrecognized authentication scheme",
                       'adcs'  => "Please alert a domain coordinator of this situation",
                       'sldb'  => "Please specify login data below",
                       'ld'    => "Login Data"
        );
        if (&Apache::lonnet::allowed('mau',$ccdomain)) {
            &initialize_authen_forms($ccdomain,$formname);

            my $choices = &Apache::lonuserutils::set_login($ccdomain,$authformkrb,$authformint,$authformloc);
            $outcome = <<ENDBADAUTH;
<script type="text/javascript" language="Javascript">
// <![CDATA[
$loginscript
// ]]>
</script>
<span class="LC_error">$lt{'err'}:
$lt{'uuas'} ($currentauth). $lt{'sldb'}.</span>
<h3>$lt{'ld'}</h3>
$choices
ENDBADAUTH
        } else {
            # This user is not allowed to modify the user's
            # authentication scheme, so just notify them of the problem
            $outcome = <<ENDBADAUTH;
<span class="LC_error"> $lt{'err'}: 
$lt{'uuas'} ($currentauth). $lt{'adcs'}.
</span>
ENDBADAUTH
        }
    } else { # Authentication type is valid
        &initialize_authen_forms($ccdomain,$formname,$currentauth,'modifyuser');
        my ($authformcurrent,$can_modify,@authform_others) =
            &modify_login_block($ccdomain,$currentauth);
        if (&Apache::lonnet::allowed('mau',$ccdomain)) {
            # Current user has login modification privileges
            my %lt=&Apache::lonlocal::texthash (
                           'ld'    => "Login Data",
                           'ccld'  => "Change Current Login Data",
                           'enld'  => "Enter New Login Data"
                                               );
            $outcome =
                       '<script type="text/javascript" language="Javascript">'."\n".
                       '// <![CDATA['."\n".
                       $loginscript."\n".
                       '// ]]>'."\n".
                       '</script>'."\n".
                       '<h3>'.$lt{'ld'}.'</h3>'.
                       &Apache::loncommon::start_data_table().
                       &Apache::loncommon::start_data_table_row().
                       '<td>'.$authformnop;
            if ($can_modify) {
                $outcome .= '</td>'."\n".
                            &Apache::loncommon::end_data_table_row().
                            &Apache::loncommon::start_data_table_row().
                            '<td>'.$authformcurrent.'</td>'.
                            &Apache::loncommon::end_data_table_row()."\n";
            } else {
                $outcome .= '&nbsp;('.$authformcurrent.')</td>'.
                            &Apache::loncommon::end_data_table_row()."\n";
            }
            foreach my $item (@authform_others) { 
                $outcome .= &Apache::loncommon::start_data_table_row().
                            '<td>'.$item.'</td>'.
                            &Apache::loncommon::end_data_table_row()."\n";
            }
            $outcome .= &Apache::loncommon::end_data_table();
        } else {
            if (&Apache::lonnet::allowed('mau',$env{'request.role.domain'})) {
                my %lt=&Apache::lonlocal::texthash(
                           'ccld'  => "Change Current Login Data",
                           'yodo'  => "You do not have privileges to modify the authentication configuration for this user.",
                           'ifch'  => "If a change is required, contact a domain coordinator for the domain",
                );
                $outcome .= <<ENDNOPRIV;
<h3>$lt{'ccld'}</h3>
$lt{'yodo'} $lt{'ifch'}: $ccdomain
<input type="hidden" name="login" value="nochange" />
ENDNOPRIV
            }
        }
    }  ## End of "check for bad authentication type" logic
    return $outcome;
}

sub modify_login_block {
    my ($dom,$currentauth) = @_;
    my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$dom);
    my ($authnum,%can_assign) =
        &Apache::loncommon::get_assignable_auth($dom);
    my ($authformcurrent,@authform_others,$show_override_msg);
    if ($currentauth=~/^krb(4|5):/) {
        $authformcurrent=$authformkrb;
        if ($can_assign{'int'}) {
            push(@authform_others,$authformint);
        }
        if ($can_assign{'loc'}) {
            push(@authform_others,$authformloc);
        }
        if (($can_assign{'krb4'}) || ($can_assign{'krb5'})) {
            $show_override_msg = 1;
        }
    } elsif ($currentauth=~/^internal:/) {
        $authformcurrent=$authformint;
        if (($can_assign{'krb4'}) || ($can_assign{'krb5'})) {
            push(@authform_others,$authformkrb);
        }
        if ($can_assign{'loc'}) {
            push(@authform_others,$authformloc);
        }
        if ($can_assign{'int'}) {
            $show_override_msg = 1;
        }
    } elsif ($currentauth=~/^unix:/) {
        $authformcurrent=$authformfsys;
        if (($can_assign{'krb4'}) || ($can_assign{'krb5'})) {
            push(@authform_others,$authformkrb);
        }
        if ($can_assign{'int'}) {
            push(@authform_others,$authformint);
        }
        if ($can_assign{'loc'}) {
            push(@authform_others,$authformloc);
        }
        if ($can_assign{'fsys'}) {
            $show_override_msg = 1;
        }
    } elsif ($currentauth=~/^localauth:/) {
        $authformcurrent=$authformloc;
        if (($can_assign{'krb4'}) || ($can_assign{'krb5'})) {
            push(@authform_others,$authformkrb);
        }
        if ($can_assign{'int'}) {
            push(@authform_others,$authformint);
        }
        if ($can_assign{'loc'}) {
            $show_override_msg = 1;
        }
    }
    if ($show_override_msg) {
        $authformcurrent = '<table><tr><td colspan="3">'.$authformcurrent.
                           '</td></tr>'."\n".
                           '<tr><td>&nbsp;&nbsp;&nbsp;</td>'.
                           '<td><b>'.&mt('Currently in use').'</b></td>'.
                           '<td align="right"><span class="LC_cusr_emph">'.
                            &mt('will override current values').
                            '</span></td></tr></table>';
    }
    return ($authformcurrent,$show_override_msg,@authform_others); 
}

sub personal_data_display {
    my ($ccuname,$ccdomain,$newuser,$context,$inst_results,$rolesarray) = @_;
    my ($output,$showforceid,%userenv,%canmodify,%canmodify_status);
    my @userinfo = ('firstname','middlename','lastname','generation',
                    'permanentemail','id');
    my $rowcount = 0;
    my $editable = 0;
    %canmodify_status = 
        &Apache::lonuserutils::can_modify_userinfo($context,$ccdomain,
                                                   ['inststatus'],$rolesarray);
    if (!$newuser) {
        # Get the users information
        %userenv = &Apache::lonnet::get('environment',
                   ['firstname','middlename','lastname','generation',
                    'permanentemail','id','inststatus'],$ccdomain,$ccuname);
        %canmodify =
            &Apache::lonuserutils::can_modify_userinfo($context,$ccdomain,
                                                       \@userinfo,$rolesarray);
    } elsif ($context eq 'selfcreate') {
        %canmodify = &selfcreate_canmodify($context,$ccdomain,\@userinfo,
                                           $inst_results,$rolesarray);
    }
    my %lt=&Apache::lonlocal::texthash(
                'pd'             => "Personal Data",
                'firstname'      => "First Name",
                'middlename'     => "Middle Name",
                'lastname'       => "Last Name",
                'generation'     => "Generation",
                'permanentemail' => "Permanent e-mail address",
                'id'             => "Student/Employee ID",
                'lg'             => "Login Data",
                'inststatus'     => "Affiliation",
    );
    my %textboxsize = (
                       firstname      => '15',
                       middlename     => '15',
                       lastname       => '15',
                       generation     => '5',
                       permanentemail => '25',
                       id             => '15',
                      );
    my $genhelp=&Apache::loncommon::help_open_topic('Generation');
    $output = '<h3>'.$lt{'pd'}.'</h3>'.
              &Apache::lonhtmlcommon::start_pick_box();
    foreach my $item (@userinfo) {
        my $rowtitle = $lt{$item};
        my $hiderow = 0;
        if ($item eq 'generation') {
            $rowtitle = $genhelp.$rowtitle;
        }
        my $row = &Apache::lonhtmlcommon::row_title($rowtitle,undef,'LC_oddrow_value')."\n";
        if ($newuser) {
            if (ref($inst_results) eq 'HASH') {
                if ($inst_results->{$item} ne '') {
                    $row .= '<input type="hidden" name="c'.$item.'" value="'.$inst_results->{$item}.'" />'.$inst_results->{$item};
                } else {
                    if ($context eq 'selfcreate') {
                        if ($canmodify{$item}) { 
                            $row .= '<input type="text" name="c'.$item.'" size="'.$textboxsize{$item}.'" value="" />';
                            $editable ++;
                        } else {
                            $hiderow = 1;
                        }
                    } else {
                        $row .= '<input type="text" name="c'.$item.'" size="'.$textboxsize{$item}.'" value="" />';
                    }
                }
            } else {
                if ($context eq 'selfcreate') {
                    if (($item eq 'permanentemail') && ($newuser eq 'email')) {
                        $row .= $ccuname;
                    } else {
                        if ($canmodify{$item}) {
                            $row .= '<input type="text" name="c'.$item.'" size="'.$textboxsize{$item}.'" value="" />';
                            $editable ++;
                        } else {
                            $hiderow = 1;
                        }
                    }
                } else {
                    $row .= '<input type="text" name="c'.$item.'" size="'.$textboxsize{$item}.'" value="" />';
                }
            }
        } else {
            if ($canmodify{$item}) {
                $row .= '<input type="text" name="c'.$item.'" size="'.$textboxsize{$item}.'" value="'.$userenv{$item}.'" />';
            } else {
                $row .= $userenv{$item};
            }
            if ($item eq 'id') {
                $showforceid = $canmodify{$item};
            }
        }
        $row .= &Apache::lonhtmlcommon::row_closure(1);
        if (!$hiderow) {
            $output .= $row;
            $rowcount ++;
        }
    }
    if (($canmodify_status{'inststatus'}) || ($context ne 'selfcreate')) {
        my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($ccdomain);
        if (ref($types) eq 'ARRAY') {
            if (@{$types} > 0) {
                my ($hiderow,$shown);
                if ($canmodify_status{'inststatus'}) {
                    $shown = &pick_inst_statuses($userenv{'inststatus'},$usertypes,$types);
                } else {
                    if ($userenv{'inststatus'} eq '') {
                        $hiderow = 1;
                    } else {
                        my @showitems;
                        foreach my $item ( map { &unescape($_); } split(':',$userenv{'inststatus'})) {
                            if (exists($usertypes->{$item})) {
                                push(@showitems,$usertypes->{$item});
                            } else {
                                push(@showitems,$item);
                            }
                        }
                        if (@showitems) {
                            $shown = join(', ',@showitems);
                        } else {
                            $hiderow = 1;
                        }
                    }
                }
                if (!$hiderow) {
                    my $row = &Apache::lonhtmlcommon::row_title(&mt('Affliations'),undef,'LC_oddrow_value')."\n".
                              $shown.&Apache::lonhtmlcommon::row_closure(1); 
                    if ($context eq 'selfcreate') {
                        $rowcount ++;
                    }
                    $output .= $row;
                }
            }
        }
    }
    $output .= &Apache::lonhtmlcommon::end_pick_box();
    if (wantarray) {
        if ($context eq 'selfcreate') {
            return($output,$rowcount,$editable);
        } else {
            return ($output,$showforceid);
        }
    } else {
        return $output;
    }
}

sub pick_inst_statuses {
    my ($curr,$usertypes,$types) = @_;
    my ($output,$rem,@currtypes);
    if ($curr ne '') {
        @currtypes = map { &unescape($_); } split(/:/,$curr);
    }
    my $numinrow = 2;
    if (ref($types) eq 'ARRAY') {
        $output = '<table>';
        my $lastcolspan; 
        for (my $i=0; $i<@{$types}; $i++) {
            if (defined($usertypes->{$types->[$i]})) {
                my $rem = $i%($numinrow);
                if ($rem == 0) {
                    if ($i<@{$types}-1) {
                        if ($i > 0) { 
                            $output .= '</tr>';
                        }
                        $output .= '<tr>';
                    }
                } elsif ($i==@{$types}-1) {
                    my $colsleft = $numinrow - $rem;
                    if ($colsleft > 1) {
                        $lastcolspan = ' colspan="'.$colsleft.'"';
                    }
                }
                my $check = ' ';
                if (grep(/^\Q$types->[$i]\E$/,@currtypes)) {
                    $check = ' checked="checked" ';
                }
                $output .= '<td class="LC_left_item"'.$lastcolspan.'>'.
                           '<span class="LC_nobreak"><label>'.
                           '<input type="checkbox" name="inststatus" '.
                           'value="'.$types->[$i].'"'.$check.'/>'.
                           $usertypes->{$types->[$i]}.'</label></span></td>';
            }
        }
        $output .= '</tr></table>';
    }
    return $output;
}

sub selfcreate_canmodify {
    my ($context,$dom,$userinfo,$inst_results,$rolesarray) = @_;
    if (ref($inst_results) eq 'HASH') {
        my @inststatuses = &get_inststatuses($inst_results);
        if (@inststatuses == 0) {
            @inststatuses = ('default');
        }
        $rolesarray = \@inststatuses;
    }
    my %canmodify =
        &Apache::lonuserutils::can_modify_userinfo($context,$dom,$userinfo,
                                                   $rolesarray);
    return %canmodify;
}

sub get_inststatuses {
    my ($insthashref) = @_;
    my @inststatuses = ();
    if (ref($insthashref) eq 'HASH') {
        if (ref($insthashref->{'inststatus'}) eq 'ARRAY') {
            @inststatuses = @{$insthashref->{'inststatus'}};
        }
    }
    return @inststatuses;
}

# ================================================================= Phase Three
sub update_user_data {
    my ($r,$context,$crstype,$brcrum) = @_; 
    my $uhome=&Apache::lonnet::homeserver($env{'form.ccuname'},
                                          $env{'form.ccdomain'});
    # Error messages
    my $error     = '<span class="LC_error">'.&mt('Error').': ';
    my $end       = '</span><br /><br />';
    my $rtnlink   = '<a href="javascript:backPage(document.userupdate,'.
                    "'$env{'form.prevphase'}','modify')".'" />'.
                    &mt('Return to previous page').'</a>'.
                    &Apache::loncommon::end_page();
    my $now = time;
    my $title;
    if (exists($env{'form.makeuser'})) {
	$title='Set Privileges for New User';
    } else {
        $title='Modify User Privileges';
    }
    my $newuser = 0;
    my ($jsback,$elements) = &crumb_utilities();
    my $jscript = '<script type="text/javascript">'."\n".
                  '// <![CDATA['."\n".
                  $jsback."\n".
                  '// ]]>'."\n".
                  '</script>'."\n";
    my %breadcrumb_text = &singleuser_breadcrumb($crstype);
    push (@{$brcrum},
             {href => "javascript:backPage(document.userupdate)",
              text => $breadcrumb_text{'search'},
              faq  => 282,
              bug  => 'Instructor Interface',}
             );
    if ($env{'form.prevphase'} eq 'userpicked') {
        push(@{$brcrum},
               {href => "javascript:backPage(document.userupdate,'get_user_info','select')",
                text => $breadcrumb_text{'userpicked'},
                faq  => 282,
                bug  => 'Instructor Interface',});
    }
    my $helpitem = 'Course_Change_Privileges';
    if ($env{'form.action'} eq 'singlestudent') {
        $helpitem = 'Course_Add_Student';
    }
    push(@{$brcrum}, 
            {href => "javascript:backPage(document.userupdate,'$env{'form.prevphase'}','modify')",
             text => $breadcrumb_text{'modify'},
             faq  => 282,
             bug  => 'Instructor Interface',},
            {href => "/adm/createuser",
             text => "Result",
             faq  => 282,
             bug  => 'Instructor Interface',
             help => $helpitem});
    my $args = {bread_crumbs          => $brcrum,
                bread_crumbs_component => 'User Management'};
    if ($env{'form.popup'}) {
        $args->{'no_nav_bar'} = 1;
    }
    $r->print(&Apache::loncommon::start_page($title,$jscript,$args));
    $r->print(&update_result_form($uhome));
    # Check Inputs
    if (! $env{'form.ccuname'} ) {
	$r->print($error.&mt('No login name specified').'.'.$end.$rtnlink);
	return;
    }
    if (  $env{'form.ccuname'} ne 
	  &LONCAPA::clean_username($env{'form.ccuname'}) ) {
	$r->print($error.&mt('Invalid login name.').'  '.
		  &mt('Only letters, numbers, periods, dashes, @, and underscores are valid.').
		  $end.$rtnlink);
	return;
    }
    if (! $env{'form.ccdomain'}       ) {
	$r->print($error.&mt('No domain specified').'.'.$end.$rtnlink);
	return;
    }
    if (  $env{'form.ccdomain'} ne
	  &LONCAPA::clean_domain($env{'form.ccdomain'}) ) {
	$r->print($error.&mt('Invalid domain name.').'  '.
		  &mt('Only letters, numbers, periods, dashes, and underscores are valid.').
		  $end.$rtnlink);
	return;
    }
    if ($uhome eq 'no_host') {
        $newuser = 1;
    }
    if (! exists($env{'form.makeuser'})) {
        # Modifying an existing user, so check the validity of the name
        if ($uhome eq 'no_host') {
            $r->print($error.&mt('Unable to determine home server for ').
                      $env{'form.ccuname'}.&mt(' in domain ').
                      $env{'form.ccdomain'}.'.');
            return;
        }
    }
    # Determine authentication method and password for the user being modified
    my $amode='';
    my $genpwd='';
    if ($env{'form.login'} eq 'krb') {
	$amode='krb';
	$amode.=$env{'form.krbver'};
	$genpwd=$env{'form.krbarg'};
    } elsif ($env{'form.login'} eq 'int') {
	$amode='internal';
	$genpwd=$env{'form.intarg'};
    } elsif ($env{'form.login'} eq 'fsys') {
	$amode='unix';
	$genpwd=$env{'form.fsysarg'};
    } elsif ($env{'form.login'} eq 'loc') {
	$amode='localauth';
	$genpwd=$env{'form.locarg'};
	$genpwd=" " if (!$genpwd);
    } elsif (($env{'form.login'} eq 'nochange') ||
             ($env{'form.login'} eq ''        )) { 
        # There is no need to tell the user we did not change what they
        # did not ask us to change.
        # If they are creating a new user but have not specified login
        # information this will be caught below.
    } else {
	    $r->print($error.&mt('Invalid login mode or password').$end.$rtnlink);    
	    return;
    }

    $r->print('<h3>'.&mt('User [_1] in domain [_2]',
			 $env{'form.ccuname'}, $env{'form.ccdomain'}).'</h3>');
    $r->print('<p class="LC_info">'.&mt('Please be patient').'</p>');

    my (%alerts,%rulematch,%inst_results,%curr_rules);
    my @userinfo = ('firstname','middlename','lastname','generation','permanentemail','id');
    my @usertools = ('aboutme','blog','portfolio');
    my @requestcourses = ('official','unofficial','community');
    my ($othertitle,$usertypes,$types) = 
        &Apache::loncommon::sorted_inst_types($env{'form.ccdomain'});
    my %canmodify_status =
        &Apache::lonuserutils::can_modify_userinfo($context,$env{'form.ccdomain'},
                                                   ['inststatus']);
    if ($env{'form.makeuser'}) {
	$r->print('<h3>'.&mt('Creating new account.').'</h3>');
        # Check for the authentication mode and password
        if (! $amode || ! $genpwd) {
	    $r->print($error.&mt('Invalid login mode or password').$end.$rtnlink);    
	    return;
	}
        # Determine desired host
        my $desiredhost = $env{'form.hserver'};
        if (lc($desiredhost) eq 'default') {
            $desiredhost = undef;
        } else {
            my %home_servers = 
		&Apache::lonnet::get_servers($env{'form.ccdomain'},'library');
            if (! exists($home_servers{$desiredhost})) {
                $r->print($error.&mt('Invalid home server specified').$end.$rtnlink);
                return;
            }
        }
        # Check ID format
        my %checkhash;
        my %checks = ('id' => 1);
        %{$checkhash{$env{'form.ccuname'}.':'.$env{'form.ccdomain'}}} = (
            'newuser' => $newuser, 
            'id' => $env{'form.cid'},
        );
        if ($env{'form.cid'} ne '') {
            &Apache::loncommon::user_rule_check(\%checkhash,\%checks,\%alerts,
                                          \%rulematch,\%inst_results,\%curr_rules);
            if (ref($alerts{'id'}) eq 'HASH') {
                if (ref($alerts{'id'}{$env{'form.ccdomain'}}) eq 'HASH') {
                    my $domdesc =
                        &Apache::lonnet::domain($env{'form.ccdomain'},'description');
                    if ($alerts{'id'}{$env{'form.ccdomain'}}{$env{'form.cid'}}) {
                        my $userchkmsg;
                        if (ref($curr_rules{$env{'form.ccdomain'}}) eq 'HASH') {
                            $userchkmsg  = 
                                &Apache::loncommon::instrule_disallow_msg('id',
                                                                    $domdesc,1).
                                &Apache::loncommon::user_rule_formats($env{'form.ccdomain'},
                                    $domdesc,$curr_rules{$env{'form.ccdomain'}}{'id'},'id');
                        }
                        $r->print($error.&mt('Invalid ID format').$end.
                                  $userchkmsg.$rtnlink);
                        return;
                    }
                }
            }
        }
	# Call modifyuser
	my $result = &Apache::lonnet::modifyuser
	    ($env{'form.ccdomain'},$env{'form.ccuname'},$env{'form.cid'},
             $amode,$genpwd,$env{'form.cfirstname'},
             $env{'form.cmiddlename'},$env{'form.clastname'},
             $env{'form.cgeneration'},undef,$desiredhost,
             $env{'form.cpermanentemail'});
	$r->print(&mt('Generating user').': '.$result);
        $uhome = &Apache::lonnet::homeserver($env{'form.ccuname'},
                                               $env{'form.ccdomain'});
        my (%changeHash,%newcustom,%changed,%changedinfo);
        if ($uhome ne 'no_host') {
            if ($context eq 'domain') {
                if ($env{'form.customquota'} == 1) {
                    if ($env{'form.portfolioquota'} eq '') {
                        $newcustom{'quota'} = 0;
                    } else {
                        $newcustom{'quota'} = $env{'form.portfolioquota'};
                        $newcustom{'quota'} =~ s/[^\d\.]//g;
                    }
                    $changed{'quota'} = &quota_admin($newcustom{'quota'},\%changeHash);
                }
                foreach my $item (@usertools) {
                    if ($env{'form.custom'.$item} == 1) {
                        $newcustom{$item} = $env{'form.tools_'.$item};
                        $changed{$item} = &tool_admin($item,$newcustom{$item},
                                                     \%changeHash,'tools');
                    }
                }
                foreach my $item (@requestcourses) {
                    if ($env{'form.custom'.$item} == 1) {
                        $newcustom{$item} = $env{'form.crsreq_'.$item};
                        if ($env{'form.crsreq_'.$item} eq 'autolimit') {
                            $newcustom{$item} .= '=';
                            unless ($env{'form.crsreq_'.$item.'_limit'} =~ /\D/) {
                                $newcustom{$item} .= $env{'form.crsreq_'.$item.'_limit'};
                            }
                        }
                        $changed{$item} = &tool_admin($item,$newcustom{$item},
                                                      \%changeHash,'requestcourses');
                    }
                }
            }
            if ($canmodify_status{'inststatus'}) {
                if (exists($env{'form.inststatus'})) {
                    my @inststatuses = &Apache::loncommon::get_env_multiple('form.inststatus');
                    if (@inststatuses > 0) {
                        $changeHash{'inststatus'} = join(',',@inststatuses);
                        $changed{'inststatus'} = $changeHash{'inststatus'};
                    }
                }
            }
            if (keys(%changed)) {
                foreach my $item (@userinfo) {
                    $changeHash{$item}  = $env{'form.c'.$item};
                }
                my $chgresult =
                     &Apache::lonnet::put('environment',\%changeHash,
                                          $env{'form.ccdomain'},$env{'form.ccuname'});
            } 
        }
        $r->print('<br />'.&mt('Home server').': '.$uhome.' '.
                  &Apache::lonnet::hostname($uhome));
    } elsif (($env{'form.login'} ne 'nochange') &&
             ($env{'form.login'} ne ''        )) {
	# Modify user privileges
        if (! $amode || ! $genpwd) {
	    $r->print($error.'Invalid login mode or password'.$end.$rtnlink);    
	    return;
	}
	# Only allow authentification modification if the person has authority
	if (&Apache::lonnet::allowed('mau',$env{'form.ccdomain'})) {
	    $r->print('Modifying authentication: '.
                      &Apache::lonnet::modifyuserauth(
		       $env{'form.ccdomain'},$env{'form.ccuname'},
                       $amode,$genpwd));
            $r->print('<br />'.&mt('Home server').': '.&Apache::lonnet::homeserver
		  ($env{'form.ccuname'},$env{'form.ccdomain'}));
	} else {
	    # Okay, this is a non-fatal error.
	    $r->print($error.&mt('You do not have the authority to modify this users authentification information').'.'.$end);    
	}
    }

    $r->rflush(); # Finish display of header before time consuming actions start

    ##
    my (@userroles,%userupdate,$cnum,$cdom,%namechanged);
    if ($context eq 'course') {
        ($cnum,$cdom) = &Apache::lonuserutils::get_course_identity();
        $crstype = &Apache::loncommon::course_type($cdom.'_'.$cnum);
    }
    if (! $env{'form.makeuser'} ) {
        # Check for need to change
        my %userenv = &Apache::lonnet::get
            ('environment',['firstname','middlename','lastname','generation',
             'id','permanentemail','portfolioquota','inststatus','tools.aboutme',
             'tools.blog','tools.portfolio','requestcourses.official',
             'requestcourses.unofficial','requestcourses.community',
             'reqcrsotherdom.official','reqcrsotherdom.unofficial',
             'reqcrsotherdom.community'],
              $env{'form.ccdomain'},$env{'form.ccuname'});
        my ($tmp) = keys(%userenv);
        if ($tmp =~ /^(con_lost|error)/i) { 
            %userenv = ();
        }
        my $no_forceid_alert;
        # Check to see if user information can be changed
        my %domconfig =
            &Apache::lonnet::get_dom('configuration',['usermodification'],
                                     $env{'form.ccdomain'});
        my @statuses = ('active','future');
        my %roles = &Apache::lonnet::get_my_roles($env{'form.ccuname'},$env{'form.ccdomain'},'userroles',\@statuses,undef,$env{'request.role.domain'});
        my ($auname,$audom);
        if ($context eq 'author') {
            $auname = $env{'user.name'};
            $audom = $env{'user.domain'};     
        }
        foreach my $item (keys(%roles)) {
            my ($rolenum,$roledom,$role) = split(/:/,$item,-1);
            if ($context eq 'course') {
                if ($cnum ne '' && $cdom ne '') {
                    if ($rolenum eq $cnum && $roledom eq $cdom) {
                        if (!grep(/^\Q$role\E$/,@userroles)) {
                            push(@userroles,$role);
                        }
                    }
                }
            } elsif ($context eq 'author') {
                if ($rolenum eq $auname && $roledom eq $audom) {
                    if (!grep(/^\Q$role\E$/,@userroles)) { 
                        push(@userroles,$role);
                    }
                }
            }
        }
        if ($env{'form.action'} eq 'singlestudent') {
            if (!grep(/^st$/,@userroles)) {
                push(@userroles,'st');
            }
        } else {
            # Check for course or co-author roles being activated or re-enabled
            if ($context eq 'author' || $context eq 'course') {
                foreach my $key (keys(%env)) {
                    if ($context eq 'author') {
                        if ($key=~/^form\.act_\Q$audom\E_\Q$auname\E_([^_]+)/) {
                            if (!grep(/^\Q$1\E$/,@userroles)) {
                                push(@userroles,$1);
                            }
                        } elsif ($key =~/^form\.ren\:\Q$audom\E\/\Q$auname\E_([^_]+)/) {
                            if (!grep(/^\Q$1\E$/,@userroles)) {
                                push(@userroles,$1);
                            }
                        }
                    } elsif ($context eq 'course') {
                        if ($key=~/^form\.act_\Q$cdom\E_\Q$cnum\E_([^_]+)/) {
                            if (!grep(/^\Q$1\E$/,@userroles)) {
                                push(@userroles,$1);
                            }
                        } elsif ($key =~/^form\.ren\:\Q$cdom\E\/\Q$cnum\E(\/?\w*)_([^_]+)/) {
                            if (!grep(/^\Q$1\E$/,@userroles)) {
                                push(@userroles,$1);
                            }
                        }
                    }
                }
            }
        }
        #Check to see if we can change personal data for the user 
        my (@mod_disallowed,@longroles);
        foreach my $role (@userroles) {
            if ($role eq 'cr') {
                push(@longroles,'Custom');
            } else {
                push(@longroles,&Apache::lonnet::plaintext($role,$crstype)); 
            }
        }
        my %canmodify = &Apache::lonuserutils::can_modify_userinfo($context,$env{'form.ccdomain'},\@userinfo,\@userroles);
        foreach my $item (@userinfo) {
            # Strip leading and trailing whitespace
            $env{'form.c'.$item} =~ s/(\s+$|^\s+)//g;
            if (!$canmodify{$item}) {
                if (defined($env{'form.c'.$item})) {
                    if ($env{'form.c'.$item} ne $userenv{$item}) {
                        push(@mod_disallowed,$item);
                    }
                }
                $env{'form.c'.$item} = $userenv{$item};
            }
        }
        # Check to see if we can change the Student/Employee ID
        my $forceid = $env{'form.forceid'};
        my $recurseid = $env{'form.recurseid'};
        my (%alerts,%rulematch,%idinst_results,%curr_rules,%got_rules);
        my %uidhash = &Apache::lonnet::idrget($env{'form.ccdomain'},
                                            $env{'form.ccuname'});
        if (($uidhash{$env{'form.ccuname'}}) && 
            ($uidhash{$env{'form.ccuname'}}!~/error\:/) && 
            (!$forceid)) {
            if ($env{'form.cid'} ne $uidhash{$env{'form.ccuname'}}) {
                $env{'form.cid'} = $userenv{'id'};
                $no_forceid_alert = &mt('New student/employee ID does not match existing ID for this user.')
                                   .'<br />'
                                   .&mt("Change is not permitted without checking the 'Force ID change' checkbox on the previous page.")
                                   .'<br />'."\n";
            }
        }
        if ($env{'form.cid'} ne $userenv{'id'}) {
            my $checkhash;
            my $checks = { 'id' => 1 };
            $checkhash->{$env{'form.ccuname'}.':'.$env{'form.ccdomain'}} = 
                   { 'newuser' => $newuser,
                     'id'  => $env{'form.cid'}, 
                   };
            &Apache::loncommon::user_rule_check($checkhash,$checks,
                \%alerts,\%rulematch,\%idinst_results,\%curr_rules,\%got_rules);
            if (ref($alerts{'id'}) eq 'HASH') {
                if (ref($alerts{'id'}{$env{'form.ccdomain'}}) eq 'HASH') {
                   $env{'form.cid'} = $userenv{'id'};
                }
            }
        }
        my ($quotachanged,$oldportfolioquota,$newportfolioquota,$oldinststatus,
            $newinststatus,$oldisdefault,$newisdefault,%oldsettings,
            %oldsettingstext,%newsettings,%newsettingstext,@disporder,
            $olddefquota,$oldsettingstatus,$newdefquota,$newsettingstatus);
        @disporder = ('inststatus');
        if ($env{'request.role.domain'} eq $env{'form.ccdomain'}) {
            push(@disporder,'requestcourses');
        } else {
            push(@disporder,'reqcrsotherdom');
        }
        push(@disporder,('quota','tools'));
        $oldinststatus = $userenv{'inststatus'};
        ($olddefquota,$oldsettingstatus) = 
            &Apache::loncommon::default_quota($env{'form.ccdomain'},$oldinststatus);
        ($newdefquota,$newsettingstatus) = ($olddefquota,$oldsettingstatus);
        my %canshow;
        if (&Apache::lonnet::allowed('mpq',$env{'form.ccdomain'})) {
            $canshow{'quota'} = 1;
        }
        if (&Apache::lonnet::allowed('mut',$env{'form.ccdomain'})) {
            $canshow{'tools'} = 1;
        }
        if (&Apache::lonnet::allowed('ccc',$env{'form.ccdomain'})) {
            $canshow{'requestcourses'} = 1;
        } elsif (&Apache::lonnet::allowed('ccc',$env{'request.role.domain'})) {
            $canshow{'reqcrsotherdom'} = 1;
        }
        if (&Apache::lonnet::allowed('mau',$env{'form.ccdomain'})) {
            $canshow{'inststatus'} = 1;
        }
        my (%changeHash,%changed);
        if ($oldinststatus eq '') {
            $oldsettings{'inststatus'} = $othertitle; 
        } else {
            if (ref($usertypes) eq 'HASH') {
                $oldsettings{'inststatus'} = join(', ',map{ $usertypes->{ &unescape($_) }; } (split(/:/,$userenv{'inststatus'})));
            } else {
                $oldsettings{'inststatus'} = join(', ',map{ &unescape($_); } (split(/:/,$userenv{'inststatus'})));
            }
        }
        $changeHash{'inststatus'} = $userenv{'inststatus'};
        if ($canmodify_status{'inststatus'}) {
            $canshow{'inststatus'} = 1;
            if (exists($env{'form.inststatus'})) {
                my @inststatuses = &Apache::loncommon::get_env_multiple('form.inststatus');
                if (@inststatuses > 0) {
                    $newinststatus = join(':',map { &escape($_); } @inststatuses);
                    $changeHash{'inststatus'} = $newinststatus;
                    if ($newinststatus ne $oldinststatus) {
                        $changed{'inststatus'} = $newinststatus;
                        ($newdefquota,$newsettingstatus) =
                            &Apache::loncommon::default_quota($env{'form.ccdomain'},$newinststatus);
                    }
                    if (ref($usertypes) eq 'HASH') {
                        $newsettings{'inststatus'} = join(', ',map{ $usertypes->{$_}; } (@inststatuses)); 
                    } else {
                        $newsettings{'inststatus'} = join(', ',@inststatuses);
                    }
                }
            } else {
                $newinststatus = '';
                $changeHash{'inststatus'} = $newinststatus;
                $newsettings{'inststatus'} = $othertitle;
                if ($newinststatus ne $oldinststatus) {
                    $changed{'inststatus'} = $changeHash{'inststatus'};
                    ($newdefquota,$newsettingstatus) =
                        &Apache::loncommon::default_quota($env{'form.ccdomain'},$newinststatus);
                }
            }
        } elsif ($context ne 'selfcreate') {
            $canshow{'inststatus'} = 1;
            $newsettings{'inststatus'} = $oldsettings{'inststatus'};
        }
        $changeHash{'portfolioquota'} = $userenv{'portfolioquota'};
        if ($context eq 'domain') {
            if ($userenv{'portfolioquota'} ne '') {
                $oldportfolioquota = $userenv{'portfolioquota'};
                if ($env{'form.customquota'} == 1) {
                    if ($env{'form.portfolioquota'} eq '') {
                        $newportfolioquota = 0;
                    } else {
                        $newportfolioquota = $env{'form.portfolioquota'};
                        $newportfolioquota =~ s/[^\d\.]//g;
                    }
                    if ($newportfolioquota != $oldportfolioquota) {
                        $changed{'quota'} = &quota_admin($newportfolioquota,\%changeHash);
                    }
                } else {
                    $changed{'quota'} = &quota_admin('',\%changeHash);
                    $newportfolioquota = $newdefquota;
                    $newisdefault = 1;
                }
            } else {
                $oldisdefault = 1;
                $oldportfolioquota = $olddefquota;
                if ($env{'form.customquota'} == 1) {
                    if ($env{'form.portfolioquota'} eq '') {
                        $newportfolioquota = 0;
                    } else {
                        $newportfolioquota = $env{'form.portfolioquota'};
                        $newportfolioquota =~ s/[^\d\.]//g;
                    }
                    $changed{'quota'} = &quota_admin($newportfolioquota,\%changeHash);
                } else {
                    $newportfolioquota = $newdefquota;
                    $newisdefault = 1;
                }
            }
            if ($oldisdefault) {
                $oldsettingstext{'quota'} = &get_defaultquota_text($oldsettingstatus);
            }
            if ($newisdefault) {
                $newsettingstext{'quota'} = &get_defaultquota_text($newsettingstatus);
            }
            &tool_changes('tools',\@usertools,\%oldsettings,\%oldsettingstext,\%userenv,
                          \%changeHash,\%changed,\%newsettings,\%newsettingstext);
            if ($env{'form.ccdomain'} eq $env{'request.role.domain'}) {
                &tool_changes('requestcourses',\@requestcourses,\%oldsettings,\%oldsettingstext,
                              \%userenv,\%changeHash,\%changed,\%newsettings,\%newsettingstext);
            } else {
                &tool_changes('reqcrsotherdom',\@requestcourses,\%oldsettings,\%oldsettingstext,
                              \%userenv,\%changeHash,\%changed,\%newsettings,\%newsettingstext);
            }
        }
        foreach my $item (@userinfo) {
            if ($env{'form.c'.$item} ne $userenv{$item}) {
                $namechanged{$item} = 1;
            }
        }
        $oldsettings{'quota'} = $oldportfolioquota.' Mb';
        $newsettings{'quota'} = $newportfolioquota.' Mb';
        if ((keys(%namechanged) > 0) || (keys(%changed) > 0)) {
            my ($chgresult,$namechgresult);
            if (keys(%changed) > 0) {
                $chgresult = 
                    &Apache::lonnet::put('environment',\%changeHash,
                                  $env{'form.ccdomain'},$env{'form.ccuname'});
                if ($chgresult eq 'ok') {
                    if (($env{'user.name'} eq $env{'form.ccuname'}) &&
                        ($env{'user.domain'} eq $env{'form.ccdomain'})) {
                        my %newenvhash;
                        foreach my $key (keys(%changed)) {
                            if (($key eq 'official') || ($key eq 'unofficial')
                                || ($key eq 'community')) {
                                $newenvhash{'environment.requestcourses.'.$key} =
                                    $changeHash{'requestcourses.'.$key};
                                if ($changeHash{'requestcourses.'.$key} ne '') {
                                    $newenvhash{'environment.canrequest.'.$key} = 1;
                                } else {
                                    $newenvhash{'environment.canrequest.'.$key} =
          &Apache::lonnet::usertools_access($env{'user.name'},$env{'user.domain'},
                                            $key,'reload','requestcourses');
                                }
                            } elsif ($key ne 'quota') {
                                $newenvhash{'environment.tools.'.$key} = 
                                    $changeHash{'tools.'.$key};
                                if ($changeHash{'tools.'.$key} ne '') {
                                    $newenvhash{'environment.availabletools.'.$key} =
                                        $changeHash{'tools.'.$key};
                                } else {
                                    $newenvhash{'environment.availabletools.'.$key} =
          &Apache::lonnet::usertools_access($env{'user.name'},$env{'user.domain'},                                            $key,'reload','tools');
                                }
                            }
                        }
                        if (keys(%newenvhash)) {
                            &Apache::lonnet::appenv(\%newenvhash);
                        }
                    }
                }
            }
            if (keys(%namechanged) > 0) {
                foreach my $field (@userinfo) {
                    $changeHash{$field}  = $env{'form.c'.$field};
                }
# Make the change
                $namechgresult =
                    &Apache::lonnet::modifyuser($env{'form.ccdomain'},
                        $env{'form.ccuname'},$changeHash{'id'},undef,undef,
                        $changeHash{'firstname'},$changeHash{'middlename'},
                        $changeHash{'lastname'},$changeHash{'generation'},
                        $changeHash{'id'},undef,$changeHash{'permanentemail'},undef,\@userinfo);
                %userupdate = (
                               lastname   => $env{'form.clastname'},
                               middlename => $env{'form.cmiddlename'},
                               firstname  => $env{'form.cfirstname'},
                               generation => $env{'form.cgeneration'},
                               id         => $env{'form.cid'},
                             );
            }
            if (((keys(%namechanged) > 0) && $namechgresult eq 'ok') || 
                ((keys(%changed) > 0) && $chgresult eq 'ok')) {
            # Tell the user we changed the name
                &display_userinfo($r,1,\@disporder,\%canshow,\@requestcourses,
                                  \@usertools,\%userenv,\%changed,\%namechanged,
                                  \%oldsettings, \%oldsettingstext,\%newsettings,
                                  \%newsettingstext);
                if ($env{'form.cid'} ne $userenv{'id'}) {
                    &Apache::lonnet::idput($env{'form.ccdomain'},
                         ($env{'form.ccuname'} => $env{'form.cid'}));
                    if (($recurseid) &&
                        (&Apache::lonnet::allowed('mau',$env{'form.ccdomain'}))) {
                        my $idresult = 
                            &Apache::lonuserutils::propagate_id_change(
                                $env{'form.ccuname'},$env{'form.ccdomain'},
                                \%userupdate);
                        $r->print('<br />'.$idresult.'<br />');
                    }
                }
                if (($env{'form.ccdomain'} eq $env{'user.domain'}) && 
                    ($env{'form.ccuname'} eq $env{'user.name'})) {
                    my %newenvhash;
                    foreach my $key (keys(%changeHash)) {
                        $newenvhash{'environment.'.$key} = $changeHash{$key};
                    }
                    &Apache::lonnet::appenv(\%newenvhash);
                }
            } else { # error occurred
                $r->print('<span class="LC_error">'.&mt('Unable to successfully change environment for').' '.
                      $env{'form.ccuname'}.' '.&mt('in domain').' '.
                      $env{'form.ccdomain'}.'</span><br />');
            }
        } else { # End of if ($env ... ) logic
            # They did not want to change the users name, quota, tool availability,
            # or ability to request creation of courses, 
            # but we can still tell them what the name and quota and availabilities are  
            &display_userinfo($r,undef,\@disporder,\%canshow,\@requestcourses,
                              \@usertools,\%userenv,\%changed,\%namechanged,\%oldsettings,
                              \%oldsettingstext,\%newsettings,\%newsettingstext);
        }
        if (@mod_disallowed) {
            my ($rolestr,$contextname);
            if (@longroles > 0) {
                $rolestr = join(', ',@longroles);
            } else {
                $rolestr = &mt('No roles');
            }
            if ($context eq 'course') {
                $contextname = &mt('course');
            } elsif ($context eq 'author') {
                $contextname = &mt('co-author');
            }
            $r->print(&mt('The following fields were not updated: ').'<ul>');
            my %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
            foreach my $field (@mod_disallowed) {
                $r->print('<li>'.$fieldtitles{$field}.'</li>'."\n"); 
            }
            $r->print('</ul>');
            if (@mod_disallowed == 1) {
                $r->print(&mt("You do not have the authority to change this field given the user's current set of active/future [_1] roles:",$contextname));
            } else {
                $r->print(&mt("You do not have the authority to change these fields given the user's current set of active/future [_1] roles:",$contextname));
            }
            my $helplink = 'javascript:helpMenu('."'display'".')';
            $r->print('<span class="LC_cusr_emph">'.$rolestr.'</span><br />'
                     .&mt('Please contact your [_1]helpdesk[_2] for more information.'
                         ,'<a href="'.$helplink.'">','</a>')
                      .'<br />');
        }
        $r->print('<span class="LC_warning">'
                  .$no_forceid_alert
                  .&Apache::lonuserutils::print_namespacing_alerts($env{'form.ccdomain'},\%alerts,\%curr_rules)
                  .'</span>');
    }
    if ($env{'form.action'} eq 'singlestudent') {
        &enroll_single_student($r,$uhome,$amode,$genpwd,$now,$newuser,$context,$crstype);
        $r->print('<p><a href="javascript:backPage(document.userupdate)">');
        if ($crstype eq 'Community') {
            $r->print(&mt('Enroll Another Member'));
        } else {
            $r->print(&mt('Enroll Another Student'));
        }
        $r->print('</a></p>');
    } else {
        my @rolechanges = &update_roles($r,$context);
        if (keys(%namechanged) > 0) {
            if ($context eq 'course') {
                if (@userroles > 0) {
                    if ((@rolechanges == 0) || 
                        (!(grep(/^st$/,@rolechanges)))) {
                        if (grep(/^st$/,@userroles)) {
                            my $classlistupdated =
                                &Apache::lonuserutils::update_classlist($cdom,
                                              $cnum,$env{'form.ccdomain'},
                                       $env{'form.ccuname'},\%userupdate);
                        }
                    }
                }
            }
        }
        my $userinfo = &Apache::loncommon::plainname($env{'form.ccuname'},
                                                     $env{'form.ccdomain'});
        if ($env{'form.popup'}) {
            $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a></p>');
        } else {
            $r->print('<p><a href="javascript:backPage(document.userupdate,'."'$env{'form.prevphase'}','modify'".')">'
                     .&mt('Modify this user: [_1]','<span class="LC_cusr_emph">'.$env{'form.ccuname'}.':'.$env{'form.ccdomain'}.' ('.$userinfo.')</span>').'</a>'
                     .('&nbsp;'x5).'<a href="javascript:backPage(document.userupdate)">'
                     .&mt('Create/Modify Another User').'</a></p>');
        }
    }
}

sub display_userinfo {
    my ($r,$changed,$order,$canshow,$requestcourses,$usertools,$userenv,
        $changedhash,$namechangedhash,$oldsetting,$oldsettingtext,
        $newsetting,$newsettingtext) = @_;
    return unless (ref($order) eq 'ARRAY' &&
                   ref($canshow) eq 'HASH' && 
                   ref($requestcourses) eq 'ARRAY' && 
                   ref($usertools) eq 'ARRAY' && 
                   ref($userenv) eq 'HASH' &&
                   ref($changedhash) eq 'HASH' &&
                   ref($oldsetting) eq 'HASH' &&
                   ref($oldsettingtext) eq 'HASH' &&
                   ref($newsetting) eq 'HASH' &&
                   ref($newsettingtext) eq 'HASH');
    my %lt=&Apache::lonlocal::texthash(
         'ui'             => 'User Information (unchanged)',
         'uic'            => 'User Information Changed',
         'firstname'      => 'First Name',
         'middlename'     => 'Middle Name',
         'lastname'       => 'Last Name',
         'generation'     => 'Generation',
         'id'             => 'Student/Employee ID',
         'permanentemail' => 'Permanent e-mail address',
         'quota'          => 'Disk space allocated to portfolio files',
         'blog'           => 'Blog Availability',
         'aboutme'        => 'Personal Information Page Availability',
         'portfolio'      => 'Portfolio Availability',
         'official'       => 'Can Request Official Courses',
         'unofficial'     => 'Can Request Unofficial Courses',
         'community'      => 'Can Request Communities',
         'inststatus'     => "Affiliation",
         'prvs'           => 'Previous Value:',
         'chto'           => 'Changed To:'
    );
    my $title = $lt{'ui'}; 
    if ($changed) {
        $title = $lt{'uic'};
    }
    $r->print('<h4>'.$title.'</h4>'.
              &Apache::loncommon::start_data_table().
              &Apache::loncommon::start_data_table_header_row());
    if ($changed) {
        $r->print("<th>&nbsp;</th>\n");
    }
    my @userinfo = ('firstname','middlename','lastname','generation','permanentemail','id');
    foreach my $item (@userinfo) {
        $r->print("<th>$lt{$item}</th>\n");
    }
    foreach my $entry (@{$order}) {
        if ($canshow->{$entry}) {
            if (($entry eq 'requestcourses') || ($entry eq 'reqcrsotherdom')) {
                foreach my $item (@{$requestcourses}) {
                    $r->print("<th>$lt{$item}</th>\n");
                }
            } elsif ($entry eq 'tools') {
                foreach my $item (@{$usertools}) {
                    $r->print("<th>$lt{$item}</th>\n");
                }
            } else {
                $r->print("<th>$lt{$entry}</th>\n");
            }
        }
    }
    $r->print(&Apache::loncommon::end_data_table_header_row().
             &Apache::loncommon::start_data_table_row());
    if ($changed) {
        $r->print('<td><b>'.$lt{'prvs'}.'</b></td>'."\n");
    }
    foreach my $item (@userinfo) {
        $r->print('<td>'.$userenv->{$item}.' </td>'."\n");
    }
    foreach my $entry (@{$order}) {
        if ($canshow->{$entry}) {
            if (($entry eq 'requestcourses') || ($entry eq 'reqcrsotherdom')) {
                foreach my $item (@{$requestcourses}) {
                    $r->print("<td>$oldsetting->{$item} $oldsettingtext->{$item}</td>\n");
                }
            } elsif ($entry eq 'tools') {
                foreach my $item (@{$usertools}) {
                    $r->print("<td>$oldsetting->{$item} $oldsettingtext->{$item}</td>\n");
                }
            } else {
                $r->print("<td>$oldsetting->{$entry} $oldsettingtext->{$entry} </td>\n");
            }
        }
    }
    $r->print(&Apache::loncommon::end_data_table_row());
    if ($changed) {
        $r->print(&Apache::loncommon::start_data_table_row().
                  '<td><span class="LC_nobreak"><b>'.$lt{'chto'}.'</b></span></td>'."\n");
        foreach my $item (@userinfo) {
            my $value = $env{'form.c'.$item};
            if ($namechangedhash->{$item}) {
                $value = '<span class="LC_cusr_emph">'.$value.'</span>';
            }
            $r->print("<td>$value </td>\n");
        }
        foreach my $entry (@{$order}) {
            if ($canshow->{$entry}) {
                if (($entry eq 'requestcourses') || ($entry eq 'reqcrsotherdom')) {
                    foreach my $item (@{$requestcourses}) {
                        my $value = $newsetting->{$item}.' '.$newsettingtext->{$item};
                        if ($changedhash->{$item}) {
                            $value = '<span class="LC_cusr_emph">'.$value.'</span>';
                        }
                        $r->print("<td>$value </td>\n");
                    }
                } elsif ($entry eq 'tools') {
                    foreach my $item (@{$usertools}) {
                        my $value = $newsetting->{$item}.' '.$newsettingtext->{$item};
                        if ($changedhash->{$item}) {
                            $value = '<span class="LC_cusr_emph">'.$value.'</span>';
                        }
                        $r->print("<td>$value </td>\n");
                    }
                } else {
                    my $value = $newsetting->{$entry}.' '.$newsettingtext->{$entry};
                    if ($changedhash->{$entry}) {
                        $value = '<span class="LC_cusr_emph">'.$value.'</span>';
                    }
                    $r->print("<td>$value </td>\n");
                }
            }
        }
        $r->print(&Apache::loncommon::end_data_table_row());
    }
    $r->print(&Apache::loncommon::end_data_table().'<br />');
    return;
}

sub tool_changes {
    my ($context,$usertools,$oldaccess,$oldaccesstext,$userenv,$changeHash,
        $changed,$newaccess,$newaccesstext) = @_;
    if (!((ref($usertools) eq 'ARRAY') && (ref($oldaccess) eq 'HASH') &&
          (ref($oldaccesstext) eq 'HASH') && (ref($userenv) eq 'HASH') &&
          (ref($changeHash) eq 'HASH') && (ref($changed) eq 'HASH') &&
          (ref($newaccess) eq 'HASH') && (ref($newaccesstext) eq 'HASH'))) {
        return;
    }
    if ($context eq 'reqcrsotherdom') {
        my @options = ('approval','validate','autolimit');
        my $optregex = join('|',@options);
        my %reqdisplay = &courserequest_display();
        my $cdom = $env{'request.role.domain'};
        foreach my $tool (@{$usertools}) {
            $oldaccesstext->{$tool} = &mt('No');
            $newaccesstext->{$tool} = $oldaccesstext->{$tool};
            $changeHash->{$context.'.'.$tool} = $userenv->{$context.'.'.$tool};
            my $newop;
            if ($env{'form.'.$context.'_'.$tool}) {
                $newop = $env{'form.'.$context.'_'.$tool};
                if ($newop eq 'autolimit') {
                    my $limit = $env{'form.'.$context.'_'.$tool.'_limit'};
                    $limit =~ s/\D+//g;
                    $newop .= '='.$limit;
                }
            }
            if ($userenv->{$context.'.'.$tool} eq '') {
                if ($newop) {
                    $changed->{$tool}=&tool_admin($tool,$cdom.':'.$newop,
                                                  $changeHash,$context);
                    if ($changed->{$tool}) {
                        $newaccesstext->{$tool} = &mt('Yes');
                    } else {
                        $newaccesstext->{$tool} = $oldaccesstext->{$tool};
                    }
                }
            } else {
                my @curr = split(',',$userenv->{$context.'.'.$tool});
                my @new;
                my $changedoms;
                foreach my $req (@curr) {
                    if ($req =~ /^\Q$cdom\E\:($optregex\=?\d*)$/) {
                        $oldaccesstext->{$tool} = &mt('Yes');
                        my $oldop = $1;
                        if ($oldop ne $newop) {
                            $changedoms = 1;
                            foreach my $item (@curr) {
                                my ($reqdom,$option) = split(':',$item);
                                unless ($reqdom eq $cdom) {
                                    push(@new,$item);
                                }
                            }
                            if ($newop) {
                                push(@new,$cdom.':'.$newop);
                            }
                            @new = sort(@new);
                        }
                        last;
                    }
                }
                if ((!$changedoms) && ($newop)) {
                    $changedoms = 1;
                    @new = sort(@curr,$cdom.':'.$newop);
                }
                if ($changedoms) {
                    my $newdomstr;
                    if (@new) {
                        $newdomstr = join(',',@new);
                    }
                    $changed->{$tool}=&tool_admin($tool,$newdomstr,$changeHash,
                                                  $context);
                    if ($changed->{$tool}) {
                        if ($env{'form.'.$context.'_'.$tool}) {
                            if ($env{'form.'.$context.'_'.$tool} eq 'autolimit') {
                                my $limit = $env{'form.'.$context.'_'.$tool.'_limit'};
                                $limit =~ s/\D+//g;
                                if ($limit) {
                                    $newaccesstext->{$tool} = &mt('Yes, up to limit of [quant,_1,request] per user.',$limit);
                                } else {
                                    $newaccesstext->{$tool} = &mt('Yes, processed automatically');
                                }
                            } else {
                                $newaccesstext->{$tool} = $reqdisplay{$env{'form.'.$context.'_'.$tool}};
                            }
                        } else {
                            $newaccesstext->{$tool} = &mt('No');
                        }
                    }
                }
            }
        }
        return;
    }
    foreach my $tool (@{$usertools}) {
        my $newval;
        if ($context eq 'requestcourses') {
            $newval = $env{'form.crsreq_'.$tool};
            if ($newval eq 'autolimit') {
                $newval .= '='.$env{'form.crsreq_'.$tool.'_limit'};
            }
        } else {
            $newval = $env{'form.'.$context.'_'.$tool};
        }
        if ($userenv->{$context.'.'.$tool} ne '') {
            $oldaccess->{$tool} = &mt('custom');
            if ($userenv->{$context.'.'.$tool}) {
                $oldaccesstext->{$tool} = &mt("availability set to 'on'");
            } else {
                $oldaccesstext->{$tool} = &mt("availability set to 'off'");
            }
            $changeHash->{$context.'.'.$tool} = $userenv->{$context.'.'.$tool};
            if ($env{'form.custom'.$tool} == 1) {
                if ($newval ne $userenv->{$context.'.'.$tool}) {
                    $changed->{$tool} = &tool_admin($tool,$newval,$changeHash,
                                                    $context);
                    if ($changed->{$tool}) {
                        $newaccess->{$tool} = &mt('custom');
                        if ($newval) {
                            $newaccesstext->{$tool} = &mt("availability set to 'on'");
                        } else {
                            $newaccesstext->{$tool} = &mt("availability set to 'off'");
                        }
                    } else {
                        $newaccess->{$tool} = $oldaccess->{$tool};
                        if ($userenv->{$context.'.'.$tool}) {
                            $newaccesstext->{$tool} = &mt("availability set to 'on'");
                        } else {
                            $newaccesstext->{$tool} = &mt("availability set to 'off'");
                        }
                    }
                } else {
                    $newaccess->{$tool} = $oldaccess->{$tool};
                    $newaccesstext->{$tool} = $oldaccesstext->{$tool};
                }
            } else {
                $changed->{$tool} = &tool_admin($tool,'',$changeHash,$context);
                if ($changed->{$tool}) {
                    $newaccess->{$tool} = &mt('default');
                } else {
                    $newaccess->{$tool} = $oldaccess->{$tool};
                    if ($userenv->{$context.'.'.$tool}) {
                        $newaccesstext->{$tool} = &mt("availability set to 'on'");
                    } else {
                        $newaccesstext->{$tool} = &mt("availability set to 'off'");
                    }
                }
            }
        } else {
            $oldaccess->{$tool} = &mt('default');
            if ($env{'form.custom'.$tool} == 1) {
                $changed->{$tool} = &tool_admin($tool,$newval,$changeHash,
                                                $context);
                if ($changed->{$tool}) {
                    $newaccess->{$tool} = &mt('custom');
                    if ($newval) {
                        $newaccesstext->{$tool} = &mt("availability set to 'on'");
                    } else {
                        $newaccesstext->{$tool} = &mt("availability set to 'off'");
                    }
                } else {
                    $newaccess->{$tool} = $oldaccess->{$tool};
                }
            } else {
                $newaccess->{$tool} = $oldaccess->{$tool};
            }
        }
    }
    return;
}

sub update_roles {
    my ($r,$context) = @_;
    my $now=time;
    my @rolechanges;
    my %disallowed;
    $r->print('<h3>'.&mt('Modifying Roles').'</h3>');
    foreach my $key (keys (%env)) {
	next if (! $env{$key});
        next if ($key eq 'form.action');
	# Revoke roles
	if ($key=~/^form\.rev/) {
	    if ($key=~/^form\.rev\:([^\_]+)\_([^\_\.]+)$/) {
# Revoke standard role
		my ($scope,$role) = ($1,$2);
		my $result =
		    &Apache::lonnet::revokerole($env{'form.ccdomain'},
						$env{'form.ccuname'},
						$scope,$role,'','',$context);
	        $r->print(&mt('Revoking [_1] in [_2]: [_3]',
			      $role,$scope,'<b>'.$result.'</b>').'<br />');
		if ($role eq 'st') {
		    my $result = 
                        &Apache::lonuserutils::classlist_drop($scope,
                            $env{'form.ccuname'},$env{'form.ccdomain'},
			    $now);
		    $r->print($result);
		}
                if (!grep(/^\Q$role\E$/,@rolechanges)) {
                    push(@rolechanges,$role);
                }
	    }
	    if ($key=~m{^form\.rev\:([^_]+)_cr\.cr/($match_domain)/($match_username)/(\w+)$}s) {
# Revoke custom role
		$r->print(&mt('Revoking custom role:').
                      ' '.$4.' by '.$3.':'.$2.' in '.$1.': <b>'.
                      &Apache::lonnet::revokecustomrole($env{'form.ccdomain'},
				  $env{'form.ccuname'},$1,$2,$3,$4,'','',$context).
		'</b><br />');
                if (!grep(/^cr$/,@rolechanges)) {
                    push(@rolechanges,'cr');
                }
	    }
	} elsif ($key=~/^form\.del/) {
	    if ($key=~/^form\.del\:([^\_]+)\_([^\_\.]+)$/) {
# Delete standard role
		my ($scope,$role) = ($1,$2);
		my $result =
		    &Apache::lonnet::assignrole($env{'form.ccdomain'},
						$env{'form.ccuname'},
						$scope,$role,$now,0,1,'',
                                                $context);
	        $r->print(&mt('Deleting [_1] in [_2]: [_3]',$role,$scope,
			      '<b>'.$result.'</b>').'<br />');
		if ($role eq 'st') {
		    my $result = 
                        &Apache::lonuserutils::classlist_drop($scope,
                            $env{'form.ccuname'},$env{'form.ccdomain'},
			    $now);
		    $r->print($result);
		}
                if (!grep(/^\Q$role\E$/,@rolechanges)) {
                    push(@rolechanges,$role);
                }
            }
	    if ($key=~m{^form\.del\:([^_]+)_cr\.cr/($match_domain)/($match_username)/(\w+)$}) {
                my ($url,$rdom,$rnam,$rolename) = ($1,$2,$3,$4);
# Delete custom role
                $r->print(&mt('Deleting custom role [_1] by [_2] in [_3]',
                      $rolename,$rnam.':'.$rdom,$url).': <b>'.
                      &Apache::lonnet::assigncustomrole($env{'form.ccdomain'},
                         $env{'form.ccuname'},$url,$rdom,$rnam,$rolename,$now,
                         0,1,$context).'</b><br />');
                if (!grep(/^cr$/,@rolechanges)) {
                    push(@rolechanges,'cr');
                }
            }
	} elsif ($key=~/^form\.ren/) {
            my $udom = $env{'form.ccdomain'};
            my $uname = $env{'form.ccuname'};
# Re-enable standard role
	    if ($key=~/^form\.ren\:([^\_]+)\_([^\_\.]+)$/) {
                my $url = $1;
                my $role = $2;
                my $logmsg;
                my $output;
                if ($role eq 'st') {
                    if ($url =~ m-^/($match_domain)/($match_courseid)/?(\w*)$-) {
                        my $result = &Apache::loncommon::commit_studentrole(\$logmsg,$udom,$uname,$url,$role,$now,0,$1,$2,$3);
                        if (($result =~ /^error/) || ($result eq 'not_in_class') || ($result eq 'unknown_course') || ($result eq 'refused')) {
                            if ($result eq 'refused' && $logmsg) {
                                $output = $logmsg;
                            } else { 
                                $output = "Error: $result\n";
                            }
                        } else {
                            $output = &mt('Assigning').' '.$role.' in '.$url.
                                      &mt('starting').' '.localtime($now).
                                      ': <br />'.$logmsg.'<br />'.
                                      &mt('Add to classlist').': <b>ok</b><br />';
                        }
                    }
                } else {
		    my $result=&Apache::lonnet::assignrole($env{'form.ccdomain'},
                               $env{'form.ccuname'},$url,$role,0,$now,'','',
                               $context);
		    $output = &mt('Re-enabling [_1] in [_2]: [_3]',
			      $role,$url,'<b>'.$result.'</b>').'<br />';
		}
                $r->print($output);
                if (!grep(/^\Q$role\E$/,@rolechanges)) {
                    push(@rolechanges,$role);
                }
	    }
# Re-enable custom role
	    if ($key=~m{^form\.ren\:([^_]+)_cr\.cr/($match_domain)/($match_username)/(\w+)$}) {
                my ($url,$rdom,$rnam,$rolename) = ($1,$2,$3,$4);
                my $result = &Apache::lonnet::assigncustomrole(
                               $env{'form.ccdomain'}, $env{'form.ccuname'},
                               $url,$rdom,$rnam,$rolename,0,$now,undef,$context);
                $r->print(&mt('Re-enabling custom role [_1] by [_2] in [_3]: [_4]',
                          $rolename,$rnam.':'.$rdom,$url,'<b>'.$result.'</b>').'<br />');
                if (!grep(/^cr$/,@rolechanges)) {
                    push(@rolechanges,'cr');
                }
            }
	} elsif ($key=~/^form\.act/) {
            my $udom = $env{'form.ccdomain'};
            my $uname = $env{'form.ccuname'};
	    if ($key=~/^form\.act\_($match_domain)\_($match_courseid)\_cr_cr_($match_domain)_($match_username)_([^\_]+)$/) {
                # Activate a custom role
		my ($one,$two,$three,$four,$five)=($1,$2,$3,$4,$5);
		my $url='/'.$one.'/'.$two;
		my $full=$one.'_'.$two.'_cr_cr_'.$three.'_'.$four.'_'.$five;

                my $start = ( $env{'form.start_'.$full} ?
                              $env{'form.start_'.$full} :
                              $now );
                my $end   = ( $env{'form.end_'.$full} ?
                              $env{'form.end_'.$full} :
                              0 );
                                                                                     
                # split multiple sections
                my %sections = ();
                my $num_sections = &build_roles($env{'form.sec_'.$full},\%sections,$5);
                if ($num_sections == 0) {
                    $r->print(&Apache::loncommon::commit_customrole($udom,$uname,$url,$three,$four,$five,$start,$end,$context));
                } else {
		    my %curr_groups =
			&Apache::longroup::coursegroups($one,$two);
                    foreach my $sec (sort {$a cmp $b} keys %sections) {
                        if (($sec eq 'none') || ($sec eq 'all') || 
                            exists($curr_groups{$sec})) {
                            $disallowed{$sec} = $url;
                            next;
                        }
                        my $securl = $url.'/'.$sec;
		        $r->print(&Apache::loncommon::commit_customrole($udom,$uname,$securl,$three,$four,$five,$start,$end,$context));
                    }
                }
                if (!grep(/^cr$/,@rolechanges)) {
                    push(@rolechanges,'cr');
                }
	    } elsif ($key=~/^form\.act\_($match_domain)\_($match_name)\_([^\_]+)$/) {
		# Activate roles for sections with 3 id numbers
		# set start, end times, and the url for the class
		my ($one,$two,$three)=($1,$2,$3);
		my $start = ( $env{'form.start_'.$one.'_'.$two.'_'.$three} ? 
			      $env{'form.start_'.$one.'_'.$two.'_'.$three} : 
			      $now );
		my $end   = ( $env{'form.end_'.$one.'_'.$two.'_'.$three} ? 
			      $env{'form.end_'.$one.'_'.$two.'_'.$three} :
			      0 );
		my $url='/'.$one.'/'.$two;
                my $type = 'three';
                # split multiple sections
                my %sections = ();
                my $num_sections = &build_roles($env{'form.sec_'.$one.'_'.$two.'_'.$three},\%sections,$three);
                if ($num_sections == 0) {
                    $r->print(&Apache::loncommon::commit_standardrole($udom,$uname,$url,$three,$start,$end,$one,$two,'',$context));
                } else {
                    my %curr_groups = 
			&Apache::longroup::coursegroups($one,$two);
                    my $emptysec = 0;
                    foreach my $sec (sort {$a cmp $b} keys %sections) {
                        $sec =~ s/\W//g;
                        if ($sec ne '') {
                            if (($sec eq 'none') || ($sec eq 'all') || 
                                exists($curr_groups{$sec})) {
                                $disallowed{$sec} = $url;
                                next;
                            }
                            my $securl = $url.'/'.$sec;
                            $r->print(&Apache::loncommon::commit_standardrole($udom,$uname,$securl,$three,$start,$end,$one,$two,$sec,$context));
                        } else {
                            $emptysec = 1;
                        }
                    }
                    if ($emptysec) {
                        $r->print(&Apache::loncommon::commit_standardrole($udom,$uname,$url,$three,$start,$end,$one,$two,'',$context));
                    }
                }
                if (!grep(/^\Q$three\E$/,@rolechanges)) {
                    push(@rolechanges,$three);
                }
	    } elsif ($key=~/^form\.act\_([^\_]+)\_([^\_]+)$/) {
		# Activate roles for sections with two id numbers
		# set start, end times, and the url for the class
		my $start = ( $env{'form.start_'.$1.'_'.$2} ? 
			      $env{'form.start_'.$1.'_'.$2} : 
			      $now );
		my $end   = ( $env{'form.end_'.$1.'_'.$2} ? 
			      $env{'form.end_'.$1.'_'.$2} :
			      0 );
                my $one = $1;
                my $two = $2;
		my $url='/'.$one.'/';
                # split multiple sections
                my %sections = ();
                my $num_sections = &build_roles($env{'form.sec_'.$one.'_'.$two},\%sections,$two);
                if ($num_sections == 0) {
                    $r->print(&Apache::loncommon::commit_standardrole($udom,$uname,$url,$two,$start,$end,$one,undef,'',$context));
                } else {
                    my $emptysec = 0;
                    foreach my $sec (sort {$a cmp $b} keys %sections) {
                        if ($sec ne '') {
                            my $securl = $url.'/'.$sec;
                            $r->print(&Apache::loncommon::commit_standardrole($udom,$uname,$securl,$two,$start,$end,$one,undef,$sec,$context));
                        } else {
                            $emptysec = 1;
                        }
                    }
                    if ($emptysec) {
                        $r->print(&Apache::loncommon::commit_standardrole($udom,$uname,$url,$two,$start,$end,$one,undef,'',$context));
                    }
                }
                if (!grep(/^\Q$two\E$/,@rolechanges)) {
                    push(@rolechanges,$two);
                }
	    } else {
		$r->print('<p><span class="LC_error">'.&mt('ERROR').': '.&mt('Unknown command').' <tt>'.$key.'</tt></span></p><br />');
            }
            foreach my $key (sort(keys(%disallowed))) {
                $r->print('<p class="LC_warning">');
                if (($key eq 'none') || ($key eq 'all')) {  
                    $r->print(&mt('[_1] may not be used as the name for a section, as it is a reserved word.','<tt>'.$key.'</tt>'));
                } else {
                    $r->print(&mt('[_1] may not be used as the name for a section, as it is the name of a course group.','<tt>'.$key.'</tt>'));
                }
                $r->print('</p><p>'
                         .&mt('Please [_1]go back[_2] and choose a different section name.'
                             ,'<a href="javascript:history.go(-1)'
                             ,'</a>')
                         .'</p><br />'
                );
            }
	}
    } # End of foreach (keys(%env))
# Flush the course logs so reverse user roles immediately updated
    $r->register_cleanup(\&Apache::lonnet::flushcourselogs);
    if (@rolechanges == 0) {
        $r->print(&mt('No roles to modify'));
    }
    return @rolechanges;
}

sub enroll_single_student {
    my ($r,$uhome,$amode,$genpwd,$now,$newuser,$context,$crstype) = @_;
    $r->print('<h3>');
    if ($crstype eq 'Community') {
        $r->print(&mt('Enrolling Member'));
    } else {
        $r->print(&mt('Enrolling Student'));
    }
    $r->print('</h3>');

    # Remove non alphanumeric values from section
    $env{'form.sections'}=~s/\W//g;

    # Clean out any old student roles the user has in this class.
    &Apache::lonuserutils::modifystudent($env{'form.ccdomain'},
         $env{'form.ccuname'},$env{'request.course.id'},undef,$uhome);
    my ($startdate,$enddate) = &Apache::lonuserutils::get_dates_from_form();
    my $enroll_result =
        &Apache::lonnet::modify_student_enrollment($env{'form.ccdomain'},
            $env{'form.ccuname'},$env{'form.cid'},$env{'form.cfirstname'},
            $env{'form.cmiddlename'},$env{'form.clastname'},
            $env{'form.generation'},$env{'form.sections'},$enddate,
            $startdate,'manual',undef,$env{'request.course.id'},'',$context);
    if ($enroll_result =~ /^ok/) {
        $r->print(&mt('<b>[_1]</b> enrolled',$env{'form.ccuname'}.':'.$env{'form.ccdomain'}));
        if ($env{'form.sections'} ne '') {
            $r->print(' '.&mt('in section [_1]',$env{'form.sections'}));
        }
        my ($showstart,$showend);
        if ($startdate <= $now) {
            $showstart = &mt('Access starts immediately');
        } else {
            $showstart = &mt('Access starts: ').&Apache::lonlocal::locallocaltime($startdate);
        }
        if ($enddate == 0) {
            $showend = &mt('ends: no ending date');
        } else {
            $showend = &mt('ends: ').&Apache::lonlocal::locallocaltime($enddate);
        }
        $r->print('.<br />'.$showstart.'; '.$showend);
        if ($startdate <= $now && !$newuser) {
            $r->print('<p> ');
            if ($crstype eq 'Community') {
                $r->print(&mt('If the member is currently logged-in to LON-CAPA, the new role will be available when the member next logs in.'));
            } else {
                $r->print(&mt('If the student is currently logged-in to LON-CAPA, the new role will be available when the student next logs in.'));
           }
           $r->print('</p>');
        }
    } else {
        $r->print(&mt('unable to enroll').": ".$enroll_result);
    }
    return;
}

sub get_defaultquota_text {
    my ($settingstatus) = @_;
    my $defquotatext; 
    if ($settingstatus eq '') {
        $defquotatext = &mt('(default)');
    } else {
        my ($usertypes,$order) =
            &Apache::lonnet::retrieve_inst_usertypes($env{'form.ccdomain'});
        if ($usertypes->{$settingstatus} eq '') {
            $defquotatext = &mt('(default)');
        } else {
            $defquotatext = &mt('(default for [_1])',$usertypes->{$settingstatus});
        }
    }
    return $defquotatext;
}

sub update_result_form {
    my ($uhome) = @_;
    my $outcome = 
    '<form name="userupdate" method="post" />'."\n";
    foreach my $item ('srchby','srchin','srchtype','srchterm','srchdomain','ccuname','ccdomain') {
        $outcome .= '<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n";
    }
    if ($env{'form.origname'} ne '') {
        $outcome .= '<input type="hidden" name="origname" value="'.$env{'form.origname'}.'" />'."\n";
    }
    foreach my $item ('sortby','seluname','seludom') {
        if (exists($env{'form.'.$item})) {
            $outcome .= '<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n";
        }
    }
    if ($uhome eq 'no_host') {
        $outcome .= '<input type="hidden" name="forcenewuser" value="1" />'."\n";
    }
    $outcome .= '<input type="hidden" name="phase" value="" />'."\n".
                '<input type ="hidden" name="currstate" value="" />'."\n".
                '<input type ="hidden" name="action" value="'.$env{'form.action'}.'" />'."\n".
                '</form>';
    return $outcome;
}

sub quota_admin {
    my ($setquota,$changeHash) = @_;
    my $quotachanged;
    if (&Apache::lonnet::allowed('mpq',$env{'form.ccdomain'})) {
        # Current user has quota modification privileges
        if (ref($changeHash) eq 'HASH') {
            $quotachanged = 1;
            $changeHash->{'portfolioquota'} = $setquota;
        }
    }
    return $quotachanged;
}

sub tool_admin {
    my ($tool,$settool,$changeHash,$context) = @_;
    my $canchange = 0; 
    if ($context eq 'requestcourses') {
        if (&Apache::lonnet::allowed('ccc',$env{'form.ccdomain'})) {
            $canchange = 1;
        }
    } elsif ($context eq 'reqcrsotherdom') {
        if (&Apache::lonnet::allowed('ccc',$env{'request.role.domain'})) {
            $canchange = 1;
        }
    } elsif (&Apache::lonnet::allowed('mut',$env{'form.ccdomain'})) {
        # Current user has quota modification privileges
        $canchange = 1;
    }
    my $toolchanged;
    if ($canchange) {
        if (ref($changeHash) eq 'HASH') {
            $toolchanged = 1;
            $changeHash->{$context.'.'.$tool} = $settool;
        }
    }
    return $toolchanged;
}

sub build_roles {
    my ($sectionstr,$sections,$role) = @_;
    my $num_sections = 0;
    if ($sectionstr=~ /,/) {
        my @secnums = split/,/,$sectionstr;
        if ($role eq 'st') {
            $secnums[0] =~ s/\W//g;
            $$sections{$secnums[0]} = 1;
            $num_sections = 1;
        } else {
            foreach my $sec (@secnums) {
                $sec =~ ~s/\W//g;
                if (!($sec eq "")) {
                    if (exists($$sections{$sec})) {
                        $$sections{$sec} ++;
                    } else {
                        $$sections{$sec} = 1;
                        $num_sections ++;
                    }
                }
            }
        }
    } else {
        $sectionstr=~s/\W//g;
        unless ($sectionstr eq '') {
            $$sections{$sectionstr} = 1;
            $num_sections ++;
        }
    }

    return $num_sections;
}

# ========================================================== Custom Role Editor

sub custom_role_editor {
    my ($r,$brcrum) = @_;
    my $action = $env{'form.customroleaction'};
    my $rolename; 
    if ($action eq 'new') {
        $rolename=$env{'form.newrolename'};
    } else {
        $rolename=$env{'form.rolename'};
    }

    my ($crstype,$context);
    if ($env{'request.course.id'}) {
        $crstype = &Apache::loncommon::course_type();
        $context = 'course';
    } else {
        $context = 'domain';
        $crstype = $env{'form.templatecrstype'};
    }

    $rolename=~s/[^A-Za-z0-9]//gs;
    if (!$rolename || $env{'form.phase'} eq 'pickrole') {
	&print_username_entry_form($r,undef,undef,undef,undef,$crstype,$brcrum);
        return;
    }

# ------------------------------------------------------- What can be assigned?
    my %full=();
    my %courselevel=();
    my %courselevelcurrent=();
    my $syspriv='';
    my $dompriv='';
    my $coursepriv='';
    my $body_top;
    my ($rdummy,$roledef)=
			 &Apache::lonnet::get('roles',["rolesdef_$rolename"]);
# ------------------------------------------------------- Does this role exist?
    $body_top .= '<h2>';
    if (($rdummy ne 'con_lost') && ($roledef ne '')) {
	$body_top .= &mt('Existing Role').' "';
# ------------------------------------------------- Get current role privileges
	($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
        if ($crstype eq 'Community') {
            $syspriv =~ s/bre\&S//;   
        }
    } else {
	$body_top .= &mt('New Role').' "';
	$roledef='';
    }
    $body_top .= $rolename.'"</h2>';
    foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
	my ($priv,$restrict)=split(/\&/,$item);
        if (!$restrict) { $restrict='F'; }
        $courselevel{$priv}=$restrict;
        if ($coursepriv=~/\:$priv/) {
	    $courselevelcurrent{$priv}=1;
	}
	$full{$priv}=1;
    }
    my %domainlevel=();
    my %domainlevelcurrent=();
    foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:d'})) {
	my ($priv,$restrict)=split(/\&/,$item);
        if (!$restrict) { $restrict='F'; }
        $domainlevel{$priv}=$restrict;
        if ($dompriv=~/\:$priv/) {
	    $domainlevelcurrent{$priv}=1;
	}
	$full{$priv}=1;
    }
    my %systemlevel=();
    my %systemlevelcurrent=();
    foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:s'})) {
	my ($priv,$restrict)=split(/\&/,$item);
        if (!$restrict) { $restrict='F'; }
        $systemlevel{$priv}=$restrict;
        if ($syspriv=~/\:$priv/) {
	    $systemlevelcurrent{$priv}=1;
	}
	$full{$priv}=1;
    }
    my ($jsback,$elements) = &crumb_utilities();
    my $button_code = "\n";
    my $head_script = "\n";
    $head_script .= '<script type="text/javascript">'."\n"
                   .'// <![CDATA['."\n";
    my @template_roles = ("in","ta","ep");
    if ($context eq 'domain') {
        push(@template_roles,"ad");
    }
    push(@template_roles,"st");
    if ($crstype eq 'Community') {
        unshift(@template_roles,'co');
    } else {
        unshift(@template_roles,'cc');
    }
    foreach my $role (@template_roles) {
        $head_script .= &make_script_template($role,$crstype);
        $button_code .= &make_button_code($role,$crstype).' ';
    }
    my $context_code;
    if ($context eq 'domain') {
        my $checkedCommunity = '';
        my $checkedCourse = ' checked="checked"';
        if ($env{'form.templatecrstype'} eq 'Community') {
            $checkedCommunity = $checkedCourse;
            $checkedCourse = '';
        }
        $context_code = '<label>'.
                        '<input type="radio" name="templatecrstype" value="Course"'.$checkedCourse.' onclick="this.form.submit();">'.
                        &mt('Course').
                        '</label>'.('&nbsp;' x2).
                        '<label>'.
                        '<input type="radio" name="templatecrstype" value="Community"'.$checkedCommunity.' onclick="this.form.submit();">'.
                        &mt('Community').
                        '</label>'.
                        '</fieldset>'.
                        '<input type="hidden" name="customroleaction" value="'.
                        $action.'" />';
        if ($env{'form.customroleaction'} eq 'new') {
            $context_code .= '<input type="hidden" name="newrolename" value="'.
                             $rolename.'" />';
        } else {
            $context_code .= '<input type="hidden" name="rolename" value="'.
                             $rolename.'" />';
        }
        $context_code .= '<input type="hidden" name="action" value="custom" />'.
                         '<input type="hidden" name="phase" value="selected_custom_edit" />';
    }

    $head_script .= "\n".$jsback."\n"
                   .'// ]]>'."\n"
                   .'</script>'."\n";
    push (@{$brcrum},
              {href => "javascript:backPage(document.form1,'pickrole','')",
               text => "Pick custom role",
               faq  => 282,bug=>'Instructor Interface',},
              {href => "javascript:backPage(document.form1,'','')",
               text => "Edit custom role",
               faq  => 282,
               bug  => 'Instructor Interface',
               help => 'Course_Editing_Custom_Roles'}
              );
    my $args = { bread_crumbs          => $brcrum,
                 bread_crumbs_component => 'User Management'};
 
    $r->print(&Apache::loncommon::start_page('Custom Role Editor',
                                             $head_script,$args).
              $body_top);
    my %lt=&Apache::lonlocal::texthash(
		    'prv'  => "Privilege",
		    'crl'  => "Course Level",
                    'dml'  => "Domain Level",
                    'ssl'  => "System Level");

    $r->print('<div class="LC_left_float">'
             .'<form action=""><fieldset>'
             .'<legend>'.&mt('Select a Template').'</legend>'
             .$button_code
             .'</fieldset></form></div>');
    if ($context_code) {
        $r->print('<div class="LC_left_float">'
                 .'<form action="/adm/createuser" method="post"><fieldset>'
                 .'<legend>'.&mt('Context').'</legend>'
                 .$context_code
                 .'</form>'
                 .'</div>'
        );
    }
    $r->print('<br clear="all" />');

    $r->print(<<ENDCCF);
<form name="form1" method="post">
<input type="hidden" name="phase" value="set_custom_roles" />
<input type="hidden" name="rolename" value="$rolename" />
ENDCCF
    $r->print(&Apache::loncommon::start_data_table().
              &Apache::loncommon::start_data_table_header_row(). 
'<th>'.$lt{'prv'}.'</th><th>'.$lt{'crl'}.'</th><th>'.$lt{'dml'}.
'</th><th>'.$lt{'ssl'}.'</th>'.
              &Apache::loncommon::end_data_table_header_row());
    foreach my $priv (sort(keys(%full))) {
        my $privtext = &Apache::lonnet::plaintext($priv,$crstype);
        $r->print(&Apache::loncommon::start_data_table_row().
	          '<td>'.$privtext.'</td><td>'.
    ($courselevel{$priv}?'<input type="checkbox" name="'.$priv.'_c"'.
    ($courselevelcurrent{$priv}?' checked="checked"':'').' />':'&nbsp;').
    '</td><td>'.
    ($domainlevel{$priv}?'<input type="checkbox" name="'.$priv.'_d"'.
    ($domainlevelcurrent{$priv}?' checked="checked"':'').' />':'&nbsp;').
    '</td><td>');
        if ($priv eq 'bre' && $crstype eq 'Community') {
            $r->print('&nbsp;');  
        } else {
            $r->print($systemlevel{$priv}?'<input type="checkbox" name="'.$priv.'_s"'.
                      ($systemlevelcurrent{$priv}?' checked="checked"':'').' />':'&nbsp;');
        }
        $r->print('</td>'.
                  &Apache::loncommon::end_data_table_row());
    }
    $r->print(&Apache::loncommon::end_data_table().
   '<input type="hidden" name="action" value="'.$env{'form.action'}.'" />'.
   '<input type="hidden" name="startrolename" value="'.$env{'form.rolename'}.
   '" />'."\n".'<input type="hidden" name="currstate" value="" />'."\n".   
   '<input type="reset" value="'.&mt("Reset").'" />'."\n".
   '<input type="submit" value="'.&mt('Save').'" /></form>');
}
# --------------------------------------------------------
sub make_script_template {
    my ($role,$crstype) = @_;
    my %full_c=();
    my %full_d=();
    my %full_s=();
    my $return_script;
    foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
        my ($priv,$restrict)=split(/\&/,$item);
        $full_c{$priv}=1;
    }
    foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:d'})) {
        my ($priv,$restrict)=split(/\&/,$item);
        $full_d{$priv}=1;
    }
    foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:s'})) {
        next if (($crstype eq 'Community') && ($item eq 'bre&S'));
        my ($priv,$restrict)=split(/\&/,$item);
        $full_s{$priv}=1;
    }
    $return_script .= 'function set_'.$role.'() {'."\n";
    my @temp = split(/:/,$Apache::lonnet::pr{$role.':c'});
    my %role_c;
    foreach my $priv (@temp) {
        my ($priv_item, $dummy) = split(/\&/,$priv);
        $role_c{$priv_item} = 1;
    }
    my %role_d;
    @temp = split(/:/,$Apache::lonnet::pr{$role.':d'});
    foreach my $priv(@temp) {
        my ($priv_item, $dummy) = split(/\&/,$priv);
        $role_d{$priv_item} = 1;
    }
    my %role_s;
    @temp = split(/:/,$Apache::lonnet::pr{$role.':s'});
    foreach my $priv(@temp) {
        my ($priv_item, $dummy) = split(/\&/,$priv);
        $role_s{$priv_item} = 1;
    }
    foreach my $priv_item (keys(%full_c)) {
        my ($priv, $dummy) = split(/\&/,$priv_item);
        if ((exists($role_c{$priv})) || (exists($role_d{$priv})) || 
            (exists($role_s{$priv}))) {
            $return_script .= "document.form1.$priv"."_c.checked = true;\n";
        } else {
            $return_script .= "document.form1.$priv"."_c.checked = false;\n";
        }
    }
    foreach my $priv_item (keys(%full_d)) {
        my ($priv, $dummy) = split(/\&/,$priv_item);
        if ((exists($role_d{$priv})) || (exists($role_s{$priv}))) {
            $return_script .= "document.form1.$priv"."_d.checked = true;\n";
        } else {
            $return_script .= "document.form1.$priv"."_d.checked = false;\n";
        }
    }
    foreach my $priv_item (keys(%full_s)) {
        my ($priv, $dummy) = split(/\&/,$priv_item);
        if (exists($role_s{$priv})) {
            $return_script .= "document.form1.$priv"."_s.checked = true;\n";
        } else {
            $return_script .= "document.form1.$priv"."_s.checked = false;\n";
        }
    }
    $return_script .= '}'."\n";
    return ($return_script);
}
# ----------------------------------------------------------
sub make_button_code {
    my ($role,$crstype) = @_;
    my $label = &Apache::lonnet::plaintext($role,$crstype);
    my $button_code = '<input type="button" onclick="set_'.$role.'()" value="'.$label.'" />';
    return ($button_code);
}
# ---------------------------------------------------------- Call to definerole
sub set_custom_role {
    my ($r,$context,$brcrum) = @_;
    my $rolename=$env{'form.rolename'};
    $rolename=~s/[^A-Za-z0-9]//gs;
    if (!$rolename) {
	&custom_role_editor($r,$brcrum);
        return;
    }
    my ($jsback,$elements) = &crumb_utilities();
    my $jscript = '<script type="text/javascript">'
                 .'// <![CDATA['."\n"
                 .$jsback."\n"
                 .'// ]]>'."\n"
                 .'</script>'."\n";
    push(@{$brcrum},
        {href => "javascript:backPage(document.customresult,'pickrole','')",
         text => "Pick custom role",
         faq  => 282,
         bug  => 'Instructor Interface',},
        {href => "javascript:backPage(document.customresult,'selected_custom_edit','')",
         text => "Edit custom role",
         faq  => 282,
         bug  => 'Instructor Interface',},
        {href => "javascript:backPage(document.customresult,'set_custom_roles','')",
         text => "Result",
         faq  => 282,
         bug  => 'Instructor Interface',
         help => 'Course_Editing_Custom_Roles'},
        );
    my $args = { bread_crumbs           => $brcrum,
                 bread_crumbs_component => 'User Management'}; 
    $r->print(&Apache::loncommon::start_page('Save Custom Role',$jscript,$args));

    my ($rdummy,$roledef)=
	&Apache::lonnet::get('roles',["rolesdef_$rolename"]);

# ------------------------------------------------------- Does this role exist?
    $r->print('<h3>');
    if (($rdummy ne 'con_lost') && ($roledef ne '')) {
	$r->print(&mt('Existing Role').' "');
    } else {
	$r->print(&mt('New Role').' "');
	$roledef='';
    }
    $r->print($rolename.'"</h3>');
# ------------------------------------------------------- What can be assigned?
    my $sysrole='';
    my $domrole='';
    my $courole='';

    foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
	my ($priv,$restrict)=split(/\&/,$item);
        if (!$restrict) { $restrict=''; }
        if ($env{'form.'.$priv.'_c'}) {
	    $courole.=':'.$item;
	}
    }

    foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:d'})) {
	my ($priv,$restrict)=split(/\&/,$item);
        if (!$restrict) { $restrict=''; }
        if ($env{'form.'.$priv.'_d'}) {
	    $domrole.=':'.$item;
	}
    }

    foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:s'})) {
	my ($priv,$restrict)=split(/\&/,$item);
        if (!$restrict) { $restrict=''; }
        if ($env{'form.'.$priv.'_s'}) {
	    $sysrole.=':'.$item;
	}
    }
    $r->print('<br />Defining Role: '.
	   &Apache::lonnet::definerole($rolename,$sysrole,$domrole,$courole));
    if ($env{'request.course.id'}) {
        my $url='/'.$env{'request.course.id'};
        $url=~s/\_/\//g;
	$r->print('<br />'.&mt('Assigning Role to Self').': '.
	      &Apache::lonnet::assigncustomrole($env{'user.domain'},
						$env{'user.name'},
						$url,
						$env{'user.domain'},
						$env{'user.name'},
						$rolename,undef,undef,undef,$context));
    }
    $r->print('<p><a href="javascript:backPage(document.customresult,'."'pickrole'".')">'.&mt('Create or edit another custom role').'</a></p><form name="customresult" method="post">');
    $r->print(&Apache::lonhtmlcommon::echo_form_input([]).'</form>');
}

# ================================================================ Main Handler
sub handler {
    my $r = shift;
    if ($r->header_only) {
       &Apache::loncommon::content_type($r,'text/html');
       $r->send_http_header;
       return OK;
    }
    my ($context,$crstype);
    if ($env{'request.course.id'}) {
        $context = 'course';
        $crstype = &Apache::loncommon::course_type();
    } elsif ($env{'request.role'} =~ /^au\./) {
        $context = 'author';
    } else {
        $context = 'domain';
    }
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
        ['action','state','callingform','roletype','showrole','bulkaction','popup','phase',
         'username','domain','srchterm','srchdomain','srchin','srchby','srchtype']);
    &Apache::lonhtmlcommon::clear_breadcrumbs();
    my $args;
    my $brcrum = [];
    my $bread_crumbs_component = 'User Management';
    if ($env{'form.action'} ne 'dateselect') {
        $brcrum = [{href=>"/adm/createuser",
                    text=>"User Management",
                    help=>'Course_Create_Class_List,Course_Change_Privileges,Course_View_Class_List,Course_Editing_Custom_Roles,Course_Add_Student,Course_Drop_Student,Course_Automated_Enrollment,Course_Self_Enrollment,Course_Manage_Group'}
                  ];
    }
    #SD Following files not added to help, because the corresponding .tex-files seem to
    #be missing: Course_Approve_Selfenroll,Course_User_Logs,
    my ($permission,$allowed) = 
        &Apache::lonuserutils::get_permission($context,$crstype);
    if (!$allowed) {
        if ($context eq 'course') {
            $r->internal_redirect('/adm/viewclasslist');
            return OK;
        }
        $env{'user.error.msg'}=
            "/adm/createuser:cst:0:0:Cannot create/modify user data ".
                                 "or view user status.";
        return HTTP_NOT_ACCEPTABLE;
    }

    &Apache::loncommon::content_type($r,'text/html');
    $r->send_http_header;

    # Main switch on form.action and form.state, as appropriate
    if (! exists($env{'form.action'})) {
        $args = {bread_crumbs => $brcrum,
                 bread_crumbs_component => $bread_crumbs_component}; 
        $r->print(&header(undef,$args));
        $r->print(&print_main_menu($permission,$context,$crstype));
    } elsif ($env{'form.action'} eq 'upload' && $permission->{'cusr'}) {
        push(@{$brcrum},
              { href => '/adm/createuser?action=upload&state=',
                text => 'Upload Users List',
                help => 'Course_Create_Class_List',
              });
        $bread_crumbs_component = 'Upload Users List';
        $args = {bread_crumbs           => $brcrum,
                 bread_crumbs_component => $bread_crumbs_component};
        $r->print(&header(undef,$args));
        $r->print('<form name="studentform" method="post" '.
                  'enctype="multipart/form-data" '.
                  ' action="/adm/createuser">'."\n");
        if (! exists($env{'form.state'})) {
            &Apache::lonuserutils::print_first_users_upload_form($r,$context);
        } elsif ($env{'form.state'} eq 'got_file') {
            &Apache::lonuserutils::print_upload_manager_form($r,$context,
                                                             $permission,$crstype);
        } elsif ($env{'form.state'} eq 'enrolling') {
            if ($env{'form.datatoken'}) {
                &Apache::lonuserutils::upfile_drop_add($r,$context,$permission);
            }
        } else {
            &Apache::lonuserutils::print_first_users_upload_form($r,$context);
        }
    } elsif ((($env{'form.action'} eq 'singleuser') || ($env{'form.action'}
             eq 'singlestudent')) && ($permission->{'cusr'})) {
        my $phase = $env{'form.phase'};
        my @search = ('srchterm','srchby','srchin','srchtype','srchdomain');
	&Apache::loncreateuser::restore_prev_selections();
	my $srch;
	foreach my $item (@search) {
	    $srch->{$item} = $env{'form.'.$item};
	}
        if (($phase eq 'get_user_info') || ($phase eq 'userpicked') ||
            ($phase eq 'createnewuser')) {
            if ($env{'form.phase'} eq 'createnewuser') {
                my $response;
                if ($env{'form.srchterm'} !~ /^$match_username$/) {
                    my $response = &mt('You must specify a valid username. Only the following are allowed: letters numbers - . @');
                    $env{'form.phase'} = '';
                    &print_username_entry_form($r,$context,$response,$srch,undef,$crstype,$brcrum);
                } else {
                    my $ccuname =&LONCAPA::clean_username($srch->{'srchterm'});
                    my $ccdomain=&LONCAPA::clean_domain($srch->{'srchdomain'});
                    &print_user_modification_page($r,$ccuname,$ccdomain,
                                                  $srch,$response,$context,
                                                  $permission,$crstype,$brcrum);
                }
            } elsif ($env{'form.phase'} eq 'get_user_info') {
                my ($currstate,$response,$forcenewuser,$results) = 
                    &user_search_result($context,$srch);
                if ($env{'form.currstate'} eq 'modify') {
                    $currstate = $env{'form.currstate'};
                }
                if ($currstate eq 'select') {
                    &print_user_selection_page($r,$response,$srch,$results,
                                               \@search,$context,undef,$crstype,
                                               $brcrum);
                } elsif ($currstate eq 'modify') {
                    my ($ccuname,$ccdomain);
                    if (($srch->{'srchby'} eq 'uname') && 
                        ($srch->{'srchtype'} eq 'exact')) {
                        $ccuname = $srch->{'srchterm'};
                        $ccdomain= $srch->{'srchdomain'};
                    } else {
                        my @matchedunames = keys(%{$results});
                        ($ccuname,$ccdomain) = split(/:/,$matchedunames[0]);
                    }
                    $ccuname =&LONCAPA::clean_username($ccuname);
                    $ccdomain=&LONCAPA::clean_domain($ccdomain);
                    if ($env{'form.forcenewuser'}) {
                        $response = '';
                    }
                    &print_user_modification_page($r,$ccuname,$ccdomain,
                                                  $srch,$response,$context,
                                                  $permission,$crstype,$brcrum);
                } elsif ($currstate eq 'query') {
                    &print_user_query_page($r,'createuser',$brcrum);
                } else {
                    $env{'form.phase'} = '';
                    &print_username_entry_form($r,$context,$response,$srch,
                                               $forcenewuser,$crstype,$brcrum);
                }
            } elsif ($env{'form.phase'} eq 'userpicked') {
                my $ccuname = &LONCAPA::clean_username($env{'form.seluname'});
                my $ccdomain = &LONCAPA::clean_domain($env{'form.seludom'});
                &print_user_modification_page($r,$ccuname,$ccdomain,$srch,'',
                                              $context,$permission,$crstype,
                                              $brcrum);
            }
        } elsif ($env{'form.phase'} eq 'update_user_data') {
            &update_user_data($r,$context,$crstype,$brcrum);
        } else {
            &print_username_entry_form($r,$context,undef,$srch,undef,$crstype,
                                       $brcrum);
        }
    } elsif ($env{'form.action'} eq 'custom' && $permission->{'custom'}) {
        if ($env{'form.phase'} eq 'set_custom_roles') {
            &set_custom_role($r,$context,$brcrum);
        } else {
            &custom_role_editor($r,$brcrum);
        }
    } elsif (($env{'form.action'} eq 'listusers') && 
             ($permission->{'view'} || $permission->{'cusr'})) {
        if ($env{'form.phase'} eq 'bulkchange') {
            push(@{$brcrum},
                    {href => '/adm/createuser?action=listusers',
                     text => "List Users"},
                    {href => "/adm/createuser",
                     text => "Result",
                     help => 'Course_View_Class_List'});
            $bread_crumbs_component = 'Update Users';
            $args = {bread_crumbs           => $brcrum,
                     bread_crumbs_component => $bread_crumbs_component};
            $r->print(&header(undef,$args));
            my $setting = $env{'form.roletype'};
            my $choice = $env{'form.bulkaction'};
            if ($permission->{'cusr'}) {
                &Apache::lonuserutils::update_user_list($r,$context,$setting,$choice,$crstype);
            } else {
                $r->print(&mt('You are not authorized to make bulk changes to user roles'));
                $r->print('<p><a href="/adm/createuser?action=listusers">'.&mt('Display User Lists').'</a>');
            }
        } else {
            push(@{$brcrum},
                    {href => '/adm/createuser?action=listusers',
                     text => "List Users",
                     help => 'Course_View_Class_List'});
            $bread_crumbs_component = 'List Users';
            $args = {bread_crumbs           => $brcrum,
                     bread_crumbs_component => $bread_crumbs_component};
            my ($cb_jscript,$jscript,$totcodes,$codetitles,$idlist,$idlist_titles);
            my $formname = 'studentform';
            if (($context eq 'domain') && (($env{'form.roletype'} eq 'course') ||
                ($env{'form.roletype'} eq 'community'))) {
                if ($env{'form.roletype'} eq 'course') {
                    ($cb_jscript,$jscript,$totcodes,$codetitles,$idlist,$idlist_titles) = 
                        &Apache::lonuserutils::courses_selector($env{'request.role.domain'},
                                                                $formname);
                } elsif ($env{'form.roletype'} eq 'community') {
                    $cb_jscript = 
                        &Apache::loncommon::coursebrowser_javascript($env{'request.role.domain'});
                    my %elements = (
                                      coursepick => 'radio',
                                      coursetotal => 'text',
                                      courselist => 'text',
                                   );
                    $jscript = &Apache::lonhtmlcommon::set_form_elements(\%elements);
                }
                $jscript .= &verify_user_display();
                my $js = &add_script($jscript).$cb_jscript;
                my $loadcode = 
                    &Apache::lonuserutils::course_selector_loadcode($formname);
                if ($loadcode ne '') {
                    $args->{add_entries} = {onload => $loadcode};
                }
                $r->print(&header($js,$args));
            } else {
                $r->print(&header(&add_script(&verify_user_display()),$args));
            }
            &Apache::lonuserutils::print_userlist($r,undef,$permission,$context,
                         $formname,$totcodes,$codetitles,$idlist,$idlist_titles);
        }
    } elsif ($env{'form.action'} eq 'drop' && $permission->{'cusr'}) {
        my $brtext;
        if ($crstype eq 'Community') {
            $brtext = 'Drop Members';
        } else {
            $brtext = 'Drop Students';
        }
        push(@{$brcrum},
                {href => '/adm/createuser?action=drop',
                 text => $brtext,
                 help => 'Course_Drop_Student'});
        if ($env{'form.state'} eq 'done') {
            push(@{$brcrum},
                     {href=>'/adm/createuser?action=drop',
                      text=>"Result"});
        }
        $bread_crumbs_component = $brtext;
        $args = {bread_crumbs           => $brcrum,
                 bread_crumbs_component => $bread_crumbs_component}; 
        $r->print(&header(undef,$args));
        if (!exists($env{'form.state'})) {
            &Apache::lonuserutils::print_drop_menu($r,$context,$permission,$crstype);
        } elsif ($env{'form.state'} eq 'done') {
            &Apache::lonuserutils::update_user_list($r,$context,undef,
                                                    $env{'form.action'});
        }
    } elsif ($env{'form.action'} eq 'dateselect') {
        if ($permission->{'cusr'}) {
            $r->print(&header(undef,{'no_nav_bar' => 1}).
                      &Apache::lonuserutils::date_section_selector($context,
                                                                   $permission,$crstype));
        } else {
            $r->print(&header(undef,{'no_nav_bar' => 1}).
                     '<span class="LC_error">'.&mt('You do not have permission to modify dates or sections for users').'</span>'); 
        }
    } elsif ($env{'form.action'} eq 'selfenroll') {
        push(@{$brcrum},
                {href => '/adm/createuser?action=selfenroll',
                 text => "Configure Self-enrollment",
                 help => 'Course_Self_Enrollment'});
        if (!exists($env{'form.state'})) {
            $args = { bread_crumbs           => $brcrum,
                      bread_crumbs_component => 'Configure Self-enrollment'};
            $r->print(&header(undef,$args));
            $r->print('<h3>'.&mt('Self-enrollment with a student role').'</h3>'."\n");
            &print_selfenroll_menu($r,$context,$permission);
        } elsif ($env{'form.state'} eq 'done') {
            push (@{$brcrum},
                      {href=>'/adm/createuser?action=selfenroll',
                       text=>"Result"});
            $args = { bread_crumbs           => $brcrum,
                      bread_crumbs_component => 'Self-enrollment result'};
            $r->print(&header(undef,$args));
            $r->print('<h3>'.&mt('Self-enrollment with a student role').'</h3>'."\n");
            &update_selfenroll_config($r,$context,$permission);
        }
    } elsif ($env{'form.action'} eq 'selfenrollqueue') {
        push(@{$brcrum},
                 {href => '/adm/createuser?action=selfenrollqueue',
                  text => 'Enrollment requests',
                  help => 'Course_Self_Enrollment'});
        $bread_crumbs_component = 'Enrollment requests';
        if ($env{'form.state'} eq 'done') {
            push(@{$brcrum},
                     {href => '/adm/createuser?action=selfenrollqueue',
                      text => 'Result',
                      help => 'Course_Self_Enrollment'});
            $bread_crumbs_component = 'Enrollment result';
        }
        $args = { bread_crumbs           => $brcrum,
                  bread_crumbs_component => $bread_crumbs_component};
        $r->print(&header(undef,$args));
        my $cid = $env{'request.course.id'};
        my $cdom = $env{'course.'.$cid.'.domain'};
        my $cnum = $env{'course.'.$cid.'.num'};
        my $coursedesc = $env{'course.'.$cid.'.description'};
        if (!exists($env{'form.state'})) {
            $r->print('<h3>'.&mt('Pending enrollment requests').'</h3>'."\n");
            $r->print(&Apache::loncoursequeueadmin::display_queued_requests($context,
                                                                       $cdom,$cnum));
        } elsif ($env{'form.state'} eq 'done') {
            $r->print('<h3>'.&mt('Enrollment request processing').'</h3>'."\n");
            $r->print(&Apache::loncoursequeueadmin::update_request_queue($context,
                          $cdom,$cnum,$coursedesc));
        }
    } elsif ($env{'form.action'} eq 'changelogs') {
        push (@{$brcrum},
                 {href => '/adm/createuser?action=changelogs',
                  text => 'User Management Logs',
                  help => 'Course_User_Logs'});
        $bread_crumbs_component = 'User Changes';
        $args = { bread_crumbs           => $brcrum,
                  bread_crumbs_component => $bread_crumbs_component};
        $r->print(&header(undef,$args));
        &print_userchangelogs_display($r,$context,$permission);
    } else {
        $bread_crumbs_component = 'User Management';
        $args = { bread_crumbs           => $brcrum,
                  bread_crumbs_component => $bread_crumbs_component};
        $r->print(&header(undef,$args));
        $r->print(&print_main_menu($permission,$context,$crstype));
    }
    $r->print(&Apache::loncommon::end_page());
    return OK;
}

sub header {
    my ($jscript,$args) = @_;
    my $start_page;
    if (ref($args) eq 'HASH') {
        $start_page=&Apache::loncommon::start_page('User Management',$jscript,$args);
    } else {
        $start_page=&Apache::loncommon::start_page('User Management',$jscript);
    }
    return $start_page;
}

sub add_script {
    my ($js) = @_;
    return '<script type="text/javascript">'."\n"
          .'// <![CDATA['."\n"
          .$js."\n"
          .'// ]]>'."\n"
          .'</script>'."\n";
}

sub verify_user_display {
    my $output = <<"END";

function display_update() {
    document.studentform.action.value = 'listusers';
    document.studentform.phase.value = 'display';
    document.studentform.submit();
}

END
    return $output;

}

###############################################################
###############################################################
#  Menu Phase One
sub print_main_menu {
    my ($permission,$context,$crstype) = @_;
    my $linkcontext = $context;
    my $stuterm = lc(&Apache::lonnet::plaintext('st',$crstype));
    if (($context eq 'course') && ($crstype eq 'Community')) {
        $linkcontext = lc($crstype);
        $stuterm = 'Members';
    }
    my %links = (
                domain => {
                            upload     => 'Upload a File of Users',
                            singleuser => 'Add/Modify a User',
                            listusers  => 'Manage Users',
                            },
                author => {
                            upload     => 'Upload a File of Co-authors',
                            singleuser => 'Add/Modify a Co-author',
                            listusers  => 'Manage Co-authors',
                            },
                course => {
                            upload     => 'Upload a File of Course Users',
                            singleuser => 'Add/Modify a Course User',
                            listusers  => 'List and Modify Multiple Course Users',
                            },
                community => {
                            upload     => 'Upload a File of Community Users',
                            singleuser => 'Add/Modify a Community User',
                            listusers  => 'List and Modify Multiple Community Users',
                           },
                );
     my %linktitles = (
                domain => {
                            singleuser => 'Add a user to the domain, and/or a course or community in the domain.',
                            listusers  => 'Show and manage users in this domain.',
                            },
                author => {
                            singleuser => 'Add a user with a co- or assistant author role.',
                            listusers  => 'Show and manage co- or assistant authors.',
                            },
                course => {
                            singleuser => 'Add a user with a certain role to this course.',
                            listusers  => 'Show and manage users in this course.',
                            },
                community => {
                            singleuser => 'Add a user with a certain role to this community.',
                            listusers  => 'Show and manage users in this community.',
                           },
                );
  my @menu = ( {categorytitle => 'Single Users', 
         items =>
         [
            {
             linktext => $links{$linkcontext}{'singleuser'},
             icon => 'edit-redo.png',
             #help => 'Course_Change_Privileges',
             url => '/adm/createuser?action=singleuser',
             permission => $permission->{'cusr'},
             linktitle => $linktitles{$linkcontext}{'singleuser'},
            },
         ]},

         {categorytitle => 'Multiple Users',
         items => 
         [
            {
             linktext => $links{$linkcontext}{'upload'},
             icon => 'uplusr.png',
             #help => 'Course_Create_Class_List',
             url => '/adm/createuser?action=upload',
             permission => $permission->{'cusr'},
             linktitle => 'Upload a CSV or a text file containing users.',
            },
            {
             linktext => $links{$linkcontext}{'listusers'},
             icon => 'mngcu.png',
             #help => 'Course_View_Class_List',
             url => '/adm/createuser?action=listusers',
             permission => ($permission->{'view'} || $permission->{'cusr'}),
             linktitle => $linktitles{$linkcontext}{'listusers'}, 
            },

         ]},

         {categorytitle => 'Administration',
         items => [ ]},
       );
            
    if ($context eq 'domain'){
        
        push(@{ $menu[2]->{items} }, #Category: Administration
            {
             linktext => 'Custom Roles',
             icon => 'emblem-photos.png',
             #help => 'Course_Editing_Custom_Roles',
             url => '/adm/createuser?action=custom',
             permission => $permission->{'custom'},
             linktitle => 'Configure a custom role.',
            },
        );
        
    }elsif ($context eq 'course'){
        my ($cnum,$cdom) = &Apache::lonuserutils::get_course_identity();

        my %linktext = (
                         'Course'    => {
                                          single => 'Add/Modify a Student', 
                                          drop   => 'Drop Students',
                                          groups => 'Course Groups',
                                        },
                         'Community' => {
                                          single => 'Add/Modify a Member', 
                                          drop   => 'Drop Members',
                                          groups => 'Community Groups',
                                        },
                       );

        my %linktitle = (
            'Course' => {
                  single => 'Add a user with the role of student to this course',
                  drop   => 'Remove a student from this course.',
                  groups => 'Manage course groups',
                        },
            'Community' => {
                  single => 'Add a user with the role of member to this community',
                  drop   => 'Remove a member from this community.',
                  groups => 'Manage community groups',
                           },
        );

        push(@{ $menu[0]->{items} }, #Category: Single Users
            {   
             linktext => $linktext{$crstype}{'single'},
             #help => 'Course_Add_Student',
             icon => 'list-add.png',
             url => '/adm/createuser?action=singlestudent',
             permission => $permission->{'cusr'},
             linktitle => $linktitle{$crstype}{'single'},
            },
        );
        
        push(@{ $menu[1]->{items} }, #Category: Multiple Users 
            {
             linktext => $linktext{$crstype}{'drop'},
             icon => 'edit-undo.png',
             #help => 'Course_Drop_Student',
             url => '/adm/createuser?action=drop',
             permission => $permission->{'cusr'},
             linktitle => $linktitle{$crstype}{'drop'},
            },
        );
        push(@{ $menu[2]->{items} }, #Category: Administration
            {    
             linktext => 'Custom Roles',
             icon => 'emblem-photos.png',
             #help => 'Course_Editing_Custom_Roles',
             url => '/adm/createuser?action=custom',
             permission => $permission->{'custom'},
             linktitle => 'Configure a custom role.',
            },
            {
             linktext => $linktext{$crstype}{'groups'},
             icon => 'grps.png',
             #help => 'Course_Manage_Group',
             url => '/adm/coursegroups?refpage=cusr',
             permission => $permission->{'grp_manage'},
             linktitle => $linktitle{$crstype}{'groups'},
            },
            {
             linktext => 'Change Log',
             icon => 'document-properties.png',
             #help => 'Course_User_Logs',
             url => '/adm/createuser?action=changelogs',
             permission => $permission->{'cusr'},
             linktitle => 'View change log.',
            },
        );
        if ($env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_approval'}) {
            push(@{ $menu[2]->{items} },
                    {   
                     linktext => 'Enrollment Requests',
                     icon => 'selfenrl-queue.png',
                     #help => 'Course_Approve_Selfenroll',
                     url => '/adm/createuser?action=selfenrollqueue',
                     permission => $permission->{'cusr'},
                     linktitle =>'Approve or reject enrollment requests.',
                    },
            );
        }
        
        if (!exists($permission->{'cusr_section'})){
            if ($crstype ne 'Community') {
                push(@{ $menu[2]->{items} },
                    {
                     linktext => 'Automated Enrollment',
                     icon => 'roles.png',
                     #help => 'Course_Automated_Enrollment',
                     permission => (&Apache::lonnet::auto_run($cnum,$cdom)
                                         && $permission->{'cusr'}),
                     url  => '/adm/populate',
                     linktitle => 'Automated enrollment manager.',
                    }
                );
            }
            push(@{ $menu[2]->{items} }, 
                {
                 linktext => 'User Self-Enrollment',
                 icon => 'self_enroll.png',
                 #help => 'Course_Self_Enrollment',
                 url => '/adm/createuser?action=selfenroll',
                 permission => $permission->{'cusr'},
                 linktitle => 'Configure user self-enrollment.',
                },
            );
        }
    };
return Apache::lonhtmlcommon::generate_menu(@menu);
#               { text => 'View Log-in History',
#                 help => 'Course_User_Logins',
#                 action => 'logins',
#                 permission => $permission->{'cusr'},
#               });
}

sub restore_prev_selections {
    my %saveable_parameters = ('srchby'   => 'scalar',
			       'srchin'   => 'scalar',
			       'srchtype' => 'scalar',
			       );
    &Apache::loncommon::store_settings('user','user_picker',
				       \%saveable_parameters);
    &Apache::loncommon::restore_settings('user','user_picker',
					 \%saveable_parameters);
}

sub print_selfenroll_menu {
    my ($r,$context,$permission) = @_;
    my $crstype = &Apache::loncommon::course_type();
    my $formname = 'enrollstudent';
    my $nolink = 1;
    my ($row,$lt) = &get_selfenroll_titles();
    my $groupslist = &Apache::lonuserutils::get_groupslist();
    my $setsec_js = 
        &Apache::lonuserutils::setsections_javascript($formname,$groupslist);
    my %alerts = &Apache::lonlocal::texthash(
        acto => 'Activation of self-enrollment was selected for the following domain(s)',
        butn => 'but no user types have been checked.',
        wilf => "Please uncheck 'activate' or check at least one type.",
    );
    my $selfenroll_js = <<"ENDSCRIPT";
function update_types(caller,num) {
    var delidx = getIndexByName('selfenroll_delete');
    var actidx = getIndexByName('selfenroll_activate');
    if (caller == 'selfenroll_all') {
        var selall;
        for (var i=0; i<document.$formname.selfenroll_all.length; i++) {
            if (document.$formname.selfenroll_all[i].checked) {
                selall = document.$formname.selfenroll_all[i].value;
            }
        }
        if (selall == 1) {
            if (delidx != -1) {
                if (document.$formname.selfenroll_delete.length) {
                    for (var j=0; j<document.$formname.selfenroll_delete.length; j++) {
                        document.$formname.selfenroll_delete[j].checked = true;
                    }
                } else {
                    document.$formname.elements[delidx].checked = true;
                }
            }
            if (actidx != -1) {
                if (document.$formname.selfenroll_activate.length) {
                    for (var j=0; j<document.$formname.selfenroll_activate.length; j++) {
                        document.$formname.selfenroll_activate[j].checked = false;
                    }
                } else {
                    document.$formname.elements[actidx].checked = false;
                }
            }
            document.$formname.selfenroll_newdom.selectedIndex = 0; 
        }
    }
    if (caller == 'selfenroll_activate') {
        if (document.$formname.selfenroll_activate.length) {
            for (var j=0; j<document.$formname.selfenroll_activate.length; j++) {
                if (document.$formname.selfenroll_activate[j].value == num) {
                    if (document.$formname.selfenroll_activate[j].checked) {
                        for (var i=0; i<document.$formname.selfenroll_all.length; i++) {
                            if (document.$formname.selfenroll_all[i].value == '1') {
                                document.$formname.selfenroll_all[i].checked = false;
                            }
                            if (document.$formname.selfenroll_all[i].value == '0') {
                                document.$formname.selfenroll_all[i].checked = true;
                            }
                        }
                    }
                }
            }
        } else {
            for (var i=0; i<document.$formname.selfenroll_all.length; i++) {
                if (document.$formname.selfenroll_all[i].value == '1') {
                    document.$formname.selfenroll_all[i].checked = false;
                }
                if (document.$formname.selfenroll_all[i].value == '0') {
                    document.$formname.selfenroll_all[i].checked = true;
                }
            }
        }
    }
    if (caller == 'selfenroll_delete') {
        if (document.$formname.selfenroll_delete.length) {
            for (var j=0; j<document.$formname.selfenroll_delete.length; j++) {
                if (document.$formname.selfenroll_delete[j].value == num) {
                    if (document.$formname.selfenroll_delete[j].checked) {
                        var delindex = getIndexByName('selfenroll_types_'+num);
                        if (delindex != -1) { 
                            if (document.$formname.elements[delindex].length) {
                                for (var k=0; k<document.$formname.elements[delindex].length; k++) {
                                    document.$formname.elements[delindex][k].checked = false;
                                }
                            } else {
                                document.$formname.elements[delindex].checked = false;
                            }
                        }
                    }
                }
            }
        } else {
            if (document.$formname.selfenroll_delete.checked) {
                var delindex = getIndexByName('selfenroll_types_'+num);
                if (delindex != -1) {
                    if (document.$formname.elements[delindex].length) {
                        for (var k=0; k<document.$formname.elements[delindex].length; k++) {
                            document.$formname.elements[delindex][k].checked = false;
                        }
                    } else {
                        document.$formname.elements[delindex].checked = false;
                    }
                }
            }
        }
    }
    return;
}

function validate_types(form) {
    var needaction = new Array();
    var countfail = 0;
    var actidx = getIndexByName('selfenroll_activate');
    if (actidx != -1) {
        if (document.$formname.selfenroll_activate.length) {
            for (var j=0; j<document.$formname.selfenroll_activate.length; j++) {
                var num = document.$formname.selfenroll_activate[j].value;
                if (document.$formname.selfenroll_activate[j].checked) {
                    countfail = check_types(num,countfail,needaction)
                }
            }
        } else {
            if (document.$formname.selfenroll_activate.checked) {
                var num = document.enrollstudent.selfenroll_activate.value;
                countfail = check_types(num,countfail,needaction)
            }
        }
    }
    if (countfail > 0) {
        var msg = "$alerts{'acto'}\\n";
        var loopend = needaction.length -1;
        if (loopend > 0) {
            for (var m=0; m<loopend; m++) {
                msg += needaction[m]+", ";
            }
        }
        msg += needaction[loopend]+"\\n$alerts{'butn'}\\n$alerts{'wilf'}";
        alert(msg);
        return; 
    }
    setSections(form);
}

function check_types(num,countfail,needaction) {
    var typeidx = getIndexByName('selfenroll_types_'+num);
    var count = 0;
    if (typeidx != -1) {
        if (document.$formname.elements[typeidx].length) {
            for (var k=0; k<document.$formname.elements[typeidx].length; k++) {
                if (document.$formname.elements[typeidx][k].checked) {
                    count ++;
                }
            }
        } else {
            if (document.$formname.elements[typeidx].checked) {
                count ++;
            }
        }
        if (count == 0) {
            var domidx = getIndexByName('selfenroll_dom_'+num);
            if (domidx != -1) {
                var domname = document.$formname.elements[domidx].value;
                needaction[countfail] = domname;
                countfail ++;
            }
        }
    }
    return countfail;
}

function getIndexByName(item) {
    for (var i=0;i<document.$formname.elements.length;i++) {
        if (document.$formname.elements[i].name == item) {
            return i;
        }
    }
    return -1;
}
ENDSCRIPT
    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};

    my $output = '<script type="text/javascript">'."\n".
                 '// <![CDATA['."\n".
                 $setsec_js."\n".$selfenroll_js."\n".
                 '// ]]>'."\n".
                 '</script>'."\n".
                 '<h3>'.$lt->{'selfenroll'}.'</h3>'."\n";
    my ($visible,$cansetvis,$vismsgs,$visactions) = &visible_in_cat($cdom,$cnum);
    if (ref($visactions) eq 'HASH') {
        if ($visible) {
            $output .= '<p class="LC_info">'.$visactions->{'vis'}.'</p>';
        } else {
            $output .= '<p class="LC_warning">'.$visactions->{'miss'}.'</p>'
                      .$visactions->{'yous'}.
                       '<p>'.$visactions->{'gen'}.'<br />'.$visactions->{'coca'};
            if (ref($vismsgs) eq 'ARRAY') {
                $output .= '<br />'.$visactions->{'make'}.'<ul>';
                foreach my $item (@{$vismsgs}) {
                    $output .= '<li>'.$visactions->{$item}.'</li>';
                }
                $output .= '</ul>';
            }
            $output .= '</p>';
        }
    }
    $output .= '<form name="'.$formname.'" method="post" action="/adm/createuser">'."\n".
               &Apache::lonhtmlcommon::start_pick_box();
    if (ref($row) eq 'ARRAY') {
        foreach my $item (@{$row}) {
            my $title = $item; 
            if (ref($lt) eq 'HASH') {
                $title = $lt->{$item};
            }
            $output .= &Apache::lonhtmlcommon::row_title($title);
            if ($item eq 'types') {
                my $curr_types = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_types'};
                my $showdomdesc = 1;
                my $includeempty = 1;
                my $num = 0;
                $output .= &Apache::loncommon::start_data_table().
                           &Apache::loncommon::start_data_table_row()
                           .'<td colspan="2"><span class="LC_nobreak"><label>'
                           .&mt('Any user in any domain:')
                           .'&nbsp;<input type="radio" name="selfenroll_all" value="1" ';
                if ($curr_types eq '*') {
                    $output .= ' checked="checked" '; 
                }
                $output .= 'onchange="javascript:update_types('.
                           "'selfenroll_all'".');" />'.&mt('Yes').'</label>'.
                           '&nbsp;&nbsp;<input type="radio" name="selfenroll_all" value="0" ';
                if ($curr_types ne '*') {
                    $output .= ' checked="checked" ';
                }
                $output .= ' onchange="javascript:update_types('.
                           "'selfenroll_all'".');"/>'.&mt('No').'</label></td>'.
                           &Apache::loncommon::end_data_table_row().
                           &Apache::loncommon::end_data_table().
                           &mt('Or').'<br />'.
                           &Apache::loncommon::start_data_table();
                my %currdoms;
                if ($curr_types eq '') {
                    $output .= &new_selfenroll_dom_row($cdom,'0');
                } elsif ($curr_types ne '*') {
                    my @entries = split(/;/,$curr_types);
                    if (@entries > 0) {
                        foreach my $entry (@entries) {
                            my ($currdom,$typestr) = split(/:/,$entry);
                            $currdoms{$currdom} = 1;
                            my $domdesc = &Apache::lonnet::domain($currdom);
                            my @currinsttypes = split(',',$typestr);
                            $output .= &Apache::loncommon::start_data_table_row()
                                       .'<td valign="top"><span class="LC_nobreak">'.&mt('Domain:').'<b>'
                                       .'&nbsp;'.$domdesc.' ('.$currdom.')'
                                       .'</b><input type="hidden" name="selfenroll_dom_'.$num
                                       .'" value="'.$currdom.'" /></span><br />'
                                       .'<span class="LC_nobreak"><label><input type="checkbox" '
                                       .'name="selfenroll_delete" value="'.$num.'" onchange="javascript:update_types('."'selfenroll_delete','$num'".');" />'
                                       .&mt('Delete').'</label></span></td>';
                            $output .= '<td valign="top">&nbsp;&nbsp;'.&mt('User types:').'<br />'
                                       .&selfenroll_inst_types($num,$currdom,\@currinsttypes).'</td>'
                                       .&Apache::loncommon::end_data_table_row();
                            $num ++;
                        }
                    }
                }
                my $add_domtitle = &mt('Users in additional domain:');
                if ($curr_types eq '*') { 
                    $add_domtitle = &mt('Users in specific domain:');
                } elsif ($curr_types eq '') {
                    $add_domtitle = &mt('Users in other domain:');
                }
                $output .= &Apache::loncommon::start_data_table_row()
                           .'<td colspan="2"><span class="LC_nobreak">'.$add_domtitle.'</span><br />'
                           .&Apache::loncommon::select_dom_form('','selfenroll_newdom',
                                                                $includeempty,$showdomdesc)
                           .'<input type="hidden" name="selfenroll_types_total" value="'.$num.'" />'
                           .'</td>'.&Apache::loncommon::end_data_table_row()
                           .&Apache::loncommon::end_data_table();
            } elsif ($item eq 'registered') {
                my ($regon,$regoff);
                if ($env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_registered'}) {
                    $regon = ' checked="checked" ';
                    $regoff = ' ';
                } else {
                    $regon = ' ';
                    $regoff = ' checked="checked" ';
                }
                $output .= '<label>'.
                           '<input type="radio" name="selfenroll_registered" value="1"'.$regon.'/>'.
                           &mt('Yes').'</label>&nbsp;&nbsp;<label>'.
                           '<input type="radio" name="selfenroll_registered" value="0"'.$regoff.'/>'.
                           &mt('No').'</label>';
            } elsif ($item eq 'enroll_dates') {
                my $starttime = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_start_date'};
                my $endtime = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_end_date'};
                if ($starttime eq '') {
                    $starttime = $env{'course.'.$env{'request.course.id'}.'.default_enrollment_start_date'};
                }
                if ($endtime eq '') {
                    $endtime = $env{'course.'.$env{'request.course.id'}.'.default_enrollment_end_date'};
                }
                my $startform =
                    &Apache::lonhtmlcommon::date_setter($formname,'selfenroll_start_date',$starttime,
                                      undef,undef,undef,undef,undef,undef,undef,$nolink);
                my $endform =
                    &Apache::lonhtmlcommon::date_setter($formname,'selfenroll_end_date',$endtime,
                                      undef,undef,undef,undef,undef,undef,undef,$nolink);
                $output .= &selfenroll_date_forms($startform,$endform);
            } elsif ($item eq 'access_dates') {
                my $starttime = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_start_access'};
                my $endtime = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_end_access'};
                if ($starttime eq '') {
                    $starttime = $env{'course.'.$env{'request.course.id'}.'.default_enrollment_start_date'};
                }
                if ($endtime eq '') {
                    $endtime = $env{'course.'.$env{'request.course.id'}.'.default_enrollment_end_date'};
                }
                my $startform =
                    &Apache::lonhtmlcommon::date_setter($formname,'selfenroll_start_access',$starttime,
                                      undef,undef,undef,undef,undef,undef,undef,$nolink);
                my $endform =
                    &Apache::lonhtmlcommon::date_setter($formname,'selfenroll_end_access',$endtime,
                                      undef,undef,undef,undef,undef,undef,undef,$nolink);
                $output .= &selfenroll_date_forms($startform,$endform);
            } elsif ($item eq 'section') {
                my $currsec = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_section'}; 
                my %sections_count = &Apache::loncommon::get_sections($cdom,$cnum);
                my $newsecval;
                if ($currsec ne 'none' && $currsec ne '') {
                    if (!defined($sections_count{$currsec})) {
                        $newsecval = $currsec;
                    }
                }
                my $sections_select = 
                    &Apache::lonuserutils::course_sections(\%sections_count,'st',$currsec);
                $output .= '<table class="LC_createuser">'."\n".
                           '<tr class="LC_section_row">'."\n".
                           '<td align="center">'.&mt('Existing sections')."\n".
                           '<br />'.$sections_select.'</td><td align="center">'.
                           &mt('New section').'<br />'."\n".
                           '<input type="text" name="newsec" size="15" value="'.$newsecval.'" />'."\n".
                           '<input type="hidden" name="sections" value="" />'."\n".
                           '<input type="hidden" name="state" value="done" />'."\n".
                           '</td></tr></table>'."\n";
            } elsif ($item eq 'approval') {
                my ($appon,$appoff);
                my $cid = $env{'request.course.id'};
                my $currnotified = $env{'course.'.$cid.'.internal.selfenroll_notifylist'};
                if ($env{'course.'.$cid.'.internal.selfenroll_approval'}) {
                    $appon = ' checked="checked" ';
                    $appoff = ' ';
                } else {
                    $appon = ' ';
                    $appoff = ' checked="checked" ';
                }
                $output .= '<label>'.
                           '<input type="radio" name="selfenroll_approval" value="1"'.$appon.'/>'.
                           &mt('Yes').'</label>&nbsp;&nbsp;<label>'.
                           '<input type="radio" name="selfenroll_approval" value="0"'.$appoff.'/>'.
                           &mt('No').'</label>';
                my %advhash = &Apache::lonnet::get_course_adv_roles($cid,1);
                my (@ccs,%notified);
                my $ccrole = 'cc';
                if ($crstype eq 'Community') {
                    $ccrole = 'co';
                }
                if ($advhash{$ccrole}) {
                    @ccs = split(/,/,$advhash{$ccrole});
                }
                if ($currnotified) {
                    foreach my $current (split(/,/,$currnotified)) {
                        $notified{$current} = 1;
                        if (!grep(/^\Q$current\E$/,@ccs)) {
                            push(@ccs,$current);
                        }
                    }
                }
                if (@ccs) {
                    $output .= '<br />'.&mt('Personnel to be notified when an enrollment request needs approval, or has been approved:').'&nbsp;'.&Apache::loncommon::start_data_table().
                               &Apache::loncommon::start_data_table_row();
                    my $count = 0;
                    my $numcols = 4;
                    foreach my $cc (sort(@ccs)) {
                        my $notifyon;
                        my ($ccuname,$ccudom) = split(/:/,$cc);
                        if ($notified{$cc}) {
                            $notifyon = ' checked="checked" ';
                        }
                        if ($count && !$count%$numcols) {
                            $output .= &Apache::loncommon::end_data_table_row().
                                       &Apache::loncommon::start_data_table_row()
                        }
                        $output .= '<td><span class="LC_nobreak"><label>'.
                                   '<input type="checkbox" name="selfenroll_notify"'.$notifyon.' value="'.$cc.'" />'.
                                   &Apache::loncommon::plainname($ccuname,$ccudom).
                                   '</label></span></td>';
                        $count ++;
                    }
                    my $rem = $count%$numcols;
                    if ($rem) {
                        my $emptycols = $numcols - $rem;
                        for (my $i=0; $i<$emptycols; $i++) { 
                            $output .= '<td>&nbsp;</td>';
                        }
                    }
                    $output .= &Apache::loncommon::end_data_table_row().
                               &Apache::loncommon::end_data_table();
                }
            } elsif ($item eq 'limit') {
                my ($crslimit,$selflimit,$nolimit);
                my $cid = $env{'request.course.id'};
                my $currlim = $env{'course.'.$cid.'.internal.selfenroll_limit'};
                my $currcap = $env{'course.'.$cid.'.internal.selfenroll_cap'};
                $nolimit = ' checked="checked" ';
                if ($currlim eq 'allstudents') {
                    $crslimit = ' checked="checked" ';
                    $selflimit = ' ';
                    $nolimit = ' ';
                } elsif ($currlim eq 'selfenrolled') {
                    $crslimit = ' ';
                    $selflimit = ' checked="checked" ';
                    $nolimit = ' '; 
                } else {
                    $crslimit = ' ';
                    $selflimit = ' ';
                }
                $output .= '<table><tr><td><label>'.
                           '<input type="radio" name="selfenroll_limit" value="none"'.$nolimit.'/>'.
                           &mt('No limit').'</label></td><td><label>'.
                           '<input type="radio" name="selfenroll_limit" value="allstudents"'.$crslimit.'/>'.
                           &mt('Limit by total students').'</label></td><td><label>'.
                           '<input type="radio" name="selfenroll_limit" value="selfenrolled"'.$selflimit.'/>'.
                           &mt('Limit by total self-enrolled students').
                           '</td></tr><tr>'.
                           '<td>&nbsp;</td><td colspan="2"><span class="LC_nobreak">'.
                           ('&nbsp;'x3).&mt('Maximum number allowed: ').
                           '<input type="text" name="selfenroll_cap" size = "5" value="'.$currcap.'" /></td></tr></table>';
            }
            $output .= &Apache::lonhtmlcommon::row_closure(1);
        }
    }
    $output .= &Apache::lonhtmlcommon::end_pick_box().
               '<br /><input type="button" name="selfenrollconf" value="'
               .&mt('Save').'" onclick="validate_types(this.form);" />'
               .'<input type="hidden" name="action" value="selfenroll" /></form>';
    $r->print($output);
    return;
}

sub visible_in_cat {
    my ($cdom,$cnum) = @_;
    my %domconf = &Apache::lonnet::get_dom('configuration',['coursecategories'],$cdom);
    my ($cathash,%settable,@vismsgs,$cansetvis);
    my %visactions = &Apache::lonlocal::texthash(
                   vis => 'Your course/community currently appears in the Course/Community Catalog for this domain.',
                   gen => 'Courses can be both self-cataloging, based on an institutional code (e.g., fs08phy231), or can be assigned categories from a hierarchy defined for the domain.',
                   miss => 'Your course/community does not currently appear in the Course/Community Catalog for this domain.',
                   yous => 'You should remedy this if you plan to allow self-enrollment, otherwise students will have difficulty finding your course.',
                   coca => 'Courses can be absent from the Catalog, because they do not have an institutional code, have no assigned category, or have been specifically excluded.',
                   make => 'Make any changes to self-enrollment settings below, click "Save", then take action to include the course in the Catalog:',
                   take => 'Take the following action to ensure the course appears in the Catalog:',
                   dc_unhide  => 'Ask a domain coordinator to change the "Exclude from course catalog" setting.',
                   dc_addinst => 'Ask a domain coordinator to enable display the catalog of "Official courses (with institutional codes)".',
                   dc_instcode => 'Ask a domain coordinator to assign an institutional code (if this is an official course).',
                   dc_catalog  => 'Ask a domain coordinator to enable or create at least one course category in the domain.',
                   dc_categories => 'Ask a domain coordinator to create a hierarchy of categories and sub categories for courses in the domain.',
                   dc_chgcat => 'Ask a domain coordinator to change the category assigned to the course, as the one currently assigned is no longer used in the domain',
                   dc_addcat => 'Ask a domain coordinator to assign a category to the course.',
    );
    $visactions{'unhide'} = &mt('Use [_1]Categorize course[_2] to change the "Exclude from course catalog" setting.','<a href="/adm/courseprefs?phase=display&actions=courseinfo">','</a>"');
    $visactions{'chgcat'} = &mt('Use [_1]Categorize course[_2] to change the category assigned to the course, as the one currently assigned is no longer used in the domain.','"<a href="/adm/courseprefs?phase=display&actions=courseinfo">','</a>"');
    $visactions{'addcat'} = &mt('Use [_1]Categorize course[_2] to assign a category to the course.','"<a href="/adm/courseprefs?phase=display&actions=courseinfo">','</a>"');
    if (ref($domconf{'coursecategories'}) eq 'HASH') {
        if ($domconf{'coursecategories'}{'togglecats'} eq 'crs') {
            $settable{'togglecats'} = 1;
        }
        if ($domconf{'coursecategories'}{'categorize'} eq 'crs') {
            $settable{'categorize'} = 1;
        }
        $cathash = $domconf{'coursecategories'}{'cats'};
    }
    if ($settable{'togglecats'} && $settable{'categorize'}) {
        $cansetvis = &mt('You are able to both assign a course category and choose to exclude this course from the catalog.');   
    } elsif ($settable{'togglecats'}) {
        $cansetvis = &mt('You are able to choose to exclude this course from the catalog, but only a Domain Coordinator may assign a course category.'); 
    } elsif ($settable{'categorize'}) {
        $cansetvis = &mt('You may assign a course category, but only a Domain Coordinator may choose to exclude this course from the catalog.');  
    } else {
        $cansetvis = &mt('Only a Domain Coordinator may assign a course category or choose to exclude this course from the catalog.'); 
    }
     
    my %currsettings =
        &Apache::lonnet::get('environment',['hidefromcat','categories','internal.coursecode'],
                             $cdom,$cnum);
    my $visible = 0;
    if ($currsettings{'internal.coursecode'} ne '') {
        if (ref($domconf{'coursecategories'}) eq 'HASH') {
            $cathash = $domconf{'coursecategories'}{'cats'};
            if (ref($cathash) eq 'HASH') {
                if ($cathash->{'instcode::0'} eq '') {
                    push(@vismsgs,'dc_addinst'); 
                } else {
                    $visible = 1;
                }
            } else {
                $visible = 1;
            }
        } else {
            $visible = 1;
        }
    } else {
        if (ref($cathash) eq 'HASH') {
            if ($cathash->{'instcode::0'} ne '') {
                push(@vismsgs,'dc_instcode');
            }
        } else {
            push(@vismsgs,'dc_instcode');
        }
    }
    if ($currsettings{'categories'} ne '') {
        my $cathash;
        if (ref($domconf{'coursecategories'}) eq 'HASH') {
            $cathash = $domconf{'coursecategories'}{'cats'};
            if (ref($cathash) eq 'HASH') {
                if (keys(%{$cathash}) == 0) {
                    push(@vismsgs,'dc_catalog');
                } elsif ((keys(%{$cathash}) == 1) && ($cathash->{'instcode::0'} ne '')) {
                    push(@vismsgs,'dc_categories');
                } else {
                    my @currcategories = split('&',$currsettings{'categories'});
                    my $matched = 0;
                    foreach my $cat (@currcategories) {
                        if ($cathash->{$cat} ne '') {
                            $visible = 1;
                            $matched = 1;
                            last;
                        }
                    }
                    if (!$matched) {
                        if ($settable{'categorize'}) { 
                            push(@vismsgs,'chgcat');
                        } else {
                            push(@vismsgs,'dc_chgcat');
                        }
                    }
                }
            }
        }
    } else {
        if (ref($cathash) eq 'HASH') {
            if ((keys(%{$cathash}) > 1) || 
                (keys(%{$cathash}) == 1) && ($cathash->{'instcode::0'} eq '')) {
                if ($settable{'categorize'}) {
                    push(@vismsgs,'addcat');
                } else {
                    push(@vismsgs,'dc_addcat');
                }
            }
        }
    }
    if ($currsettings{'hidefromcat'} eq 'yes') {
        $visible = 0;
        if ($settable{'togglecats'}) {
            unshift(@vismsgs,'unhide');
        } else {
            unshift(@vismsgs,'dc_unhide')
        }
    }
    return ($visible,$cansetvis,\@vismsgs,\%visactions);
}

sub new_selfenroll_dom_row {
    my ($newdom,$num) = @_;
    my $domdesc = &Apache::lonnet::domain($newdom);
    my $output;
    if ($domdesc ne '') {
        $output .= &Apache::loncommon::start_data_table_row()
                   .'<td valign="top"><span class="LC_nobreak">'.&mt('Domain:').'&nbsp;<b>'.$domdesc
                   .' ('.$newdom.')</b><input type="hidden" name="selfenroll_dom_'.$num
                   .'" value="'.$newdom.'" /></span><br />'
                   .'<span class="LC_nobreak"><label><input type="checkbox" '
                   .'name="selfenroll_activate" value="'.$num.'" '
                   .'onchange="javascript:update_types('
                   ."'selfenroll_activate','$num'".');" />'
                   .&mt('Activate').'</label></span></td>';
        my @currinsttypes;
        $output .= '<td>'.&mt('User types:').'<br />'
                   .&selfenroll_inst_types($num,$newdom,\@currinsttypes).'</td>'
                   .&Apache::loncommon::end_data_table_row();
    }
    return $output;
}

sub selfenroll_inst_types {
    my ($num,$currdom,$currinsttypes) = @_;
    my $output;
    my $numinrow = 4;
    my $count = 0;
    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($currdom);
    my $othervalue = 'any';
    if ((ref($types) eq 'ARRAY') && (ref($usertypes) eq 'HASH')) {
        if (keys(%{$usertypes}) > 0) {
            $othervalue = 'other';
        }
        $output .= '<table><tr>';
        foreach my $type (@{$types}) {
            if (($count > 0) && ($count%$numinrow == 0)) {
                $output .= '</tr><tr>';
            }
            if (defined($usertypes->{$type})) {
                my $esc_type = &escape($type);
                $output .= '<td><span class="LC_nobreak"><label><input type = "checkbox" value="'.
                           $esc_type.'" ';
                if (ref($currinsttypes) eq 'ARRAY') {
                    if (@{$currinsttypes} > 0) {
                        if (grep(/^any$/,@{$currinsttypes})) {
                            $output .= 'checked="checked"';
                        } elsif (grep(/^\Q$esc_type\E$/,@{$currinsttypes})) {
                            $output .= 'checked="checked"';
                        }
                    } else {
                        $output .= 'checked="checked"';
                    }
                }
                $output .= ' name="selfenroll_types_'.$num.'" />'.$usertypes->{$type}.'</label></span></td>';
            }
            $count ++;
        }
        if (($count > 0) && ($count%$numinrow == 0)) {
            $output .= '</tr><tr>';
        }
        $output .= '<td><span class="LC_nobreak"><label><input type = "checkbox" value="'.$othervalue.'"';
        if (ref($currinsttypes) eq 'ARRAY') {
            if (@{$currinsttypes} > 0) {
                if (grep(/^any$/,@{$currinsttypes})) { 
                    $output .= ' checked="checked"';
                } elsif ($othervalue eq 'other') {
                    if (grep(/^\Q$othervalue\E$/,@{$currinsttypes})) {
                        $output .= ' checked="checked"';
                    }
                }
            } else {
                $output .= ' checked="checked"';
            }
        } else {
            $output .= ' checked="checked"';
        }
        $output .= ' name="selfenroll_types_'.$num.'" />'.$othertitle.'</label></span></td></tr></table>';
    }
    return $output;
}

sub selfenroll_date_forms {
    my ($startform,$endform) = @_;
    my $output .= &Apache::lonhtmlcommon::start_pick_box()."\n".
                  &Apache::lonhtmlcommon::row_title(&mt('Start date'),
                                                    'LC_oddrow_value')."\n".
                  $startform."\n".
                  &Apache::lonhtmlcommon::row_closure(1).
                  &Apache::lonhtmlcommon::row_title(&mt('End date'),
                                                   'LC_oddrow_value')."\n".
                  $endform."\n".
                  &Apache::lonhtmlcommon::row_closure(1).
                  &Apache::lonhtmlcommon::end_pick_box();
    return $output;
}

sub print_userchangelogs_display {
    my ($r,$context,$permission) = @_;
    my $formname = 'roleslog';
    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
    my $crstype = &Apache::loncommon::course_type();
    my %roleslog=&Apache::lonnet::dump('nohist_rolelog',$cdom,$cnum);
    if ((keys(%roleslog))[0]=~/^error\:/) { undef(%roleslog); }

    my %saveable_parameters = ('show' => 'scalar',);
    &Apache::loncommon::store_course_settings('roles_log',
                                              \%saveable_parameters);
    &Apache::loncommon::restore_course_settings('roles_log',
                                                \%saveable_parameters);
    # set defaults
    my $now = time();
    my $defstart = $now - (7*24*3600); #7 days ago 
    my %defaults = (
                     page               => '1',
                     show               => '10',
                     role               => 'any',
                     chgcontext         => 'any',
                     rolelog_start_date => $defstart,
                     rolelog_end_date   => $now,
                   );
    my $more_records = 0;

    # set current
    my %curr;
    foreach my $item ('show','page','role','chgcontext') {
        $curr{$item} = $env{'form.'.$item};
    }
    my ($startdate,$enddate) = 
        &Apache::lonuserutils::get_dates_from_form('rolelog_start_date','rolelog_end_date');
    $curr{'rolelog_start_date'} = $startdate;
    $curr{'rolelog_end_date'} = $enddate;
    foreach my $key (keys(%defaults)) {
        if ($curr{$key} eq '') {
            $curr{$key} = $defaults{$key};
        }
    }
    my (%whodunit,%changed,$version);
    ($version) = ($r->dir_config('lonVersion') =~ /^([\d\.]+)\-/);
    my ($minshown,$maxshown);
    $minshown = 1;
    my $count = 0;
    if ($curr{'show'} ne &mt('all')) { 
        $maxshown = $curr{'page'} * $curr{'show'};
        if ($curr{'page'} > 1) {
            $minshown = 1 + ($curr{'page'} - 1) * $curr{'show'};
        }
    }

    # Form Header
    $r->print('<form action="/adm/createuser" method="post" name="'.$formname.'">'.
              &role_display_filter($formname,$cdom,$cnum,\%curr,$version,$crstype));

    # Create navigation
    my ($nav_script,$nav_links) = &userlogdisplay_nav($formname,\%curr,$more_records);
    my $showntableheader = 0;

    # Table Header
    my $tableheader = 
        &Apache::loncommon::start_data_table_header_row()
       .'<th>&nbsp;</th>'
       .'<th>'.&mt('When').'</th>'
       .'<th>'.&mt('Who made the change').'</th>'
       .'<th>'.&mt('Changed User').'</th>'
       .'<th>'.&mt('Role').'</th>'
       .'<th>'.&mt('Section').'</th>'
       .'<th>'.&mt('Context').'</th>'
       .'<th>'.&mt('Start').'</th>'
       .'<th>'.&mt('End').'</th>'
       .&Apache::loncommon::end_data_table_header_row();

    # Display user change log data
    foreach my $id (sort { $roleslog{$b}{'exe_time'}<=>$roleslog{$a}{'exe_time'} } (keys(%roleslog))) {
        next if (($roleslog{$id}{'exe_time'} < $curr{'rolelog_start_date'}) ||
                 ($roleslog{$id}{'exe_time'} > $curr{'rolelog_end_date'}));
        if ($curr{'show'} ne &mt('all')) {
            if ($count >= $curr{'page'} * $curr{'show'}) {
                $more_records = 1;
                last;
            }
        }
        if ($curr{'role'} ne 'any') {
            next if ($roleslog{$id}{'logentry'}{'role'} ne $curr{'role'}); 
        }
        if ($curr{'chgcontext'} ne 'any') {
            if ($curr{'chgcontext'} eq 'selfenroll') {
                next if (!$roleslog{$id}{'logentry'}{'selfenroll'});
            } else {
                next if ($roleslog{$id}{'logentry'}{'context'} ne $curr{'chgcontext'});
            }
        }
        $count ++;
        next if ($count < $minshown);
        unless ($showntableheader) {
            $r->print($nav_script
                     .$nav_links
                     .&Apache::loncommon::start_data_table()
                     .$tableheader);
            $r->rflush();
            $showntableheader = 1;
        }
        if ($whodunit{$roleslog{$id}{'exe_uname'}.':'.$roleslog{$id}{'exe_udom'}} eq '') {
            $whodunit{$roleslog{$id}{'exe_uname'}.':'.$roleslog{$id}{'exe_udom'}} =
                &Apache::loncommon::plainname($roleslog{$id}{'exe_uname'},$roleslog{$id}{'exe_udom'});
        }
        if ($changed{$roleslog{$id}{'uname'}.':'.$roleslog{$id}{'udom'}} eq '') {
            $changed{$roleslog{$id}{'uname'}.':'.$roleslog{$id}{'udom'}} =
                &Apache::loncommon::plainname($roleslog{$id}{'uname'},$roleslog{$id}{'udom'});
        }
        my $sec = $roleslog{$id}{'logentry'}{'section'};
        if ($sec eq '') {
            $sec = &mt('None');
        }
        my ($rolestart,$roleend);
        if ($roleslog{$id}{'delflag'}) {
            $rolestart = &mt('deleted');
            $roleend = &mt('deleted');
        } else {
            $rolestart = $roleslog{$id}{'logentry'}{'start'};
            $roleend = $roleslog{$id}{'logentry'}{'end'};
            if ($rolestart eq '' || $rolestart == 0) {
                $rolestart = &mt('No start date'); 
            } else {
                $rolestart = &Apache::lonlocal::locallocaltime($rolestart);
            }
            if ($roleend eq '' || $roleend == 0) { 
                $roleend = &mt('No end date');
            } else {
                $roleend = &Apache::lonlocal::locallocaltime($roleend);
            }
        }
        my $chgcontext = $roleslog{$id}{'logentry'}{'context'};
        if ($roleslog{$id}{'logentry'}{'selfenroll'}) {
            $chgcontext = 'selfenroll';
        }
        my %lt = &rolechg_contexts($crstype);
        if ($chgcontext ne '' && $lt{$chgcontext} ne '') {
            $chgcontext = $lt{$chgcontext};
        }
        $r->print(
            &Apache::loncommon::start_data_table_row()
           .'<td>'.$count.'</td>'
           .'<td>'.&Apache::lonlocal::locallocaltime($roleslog{$id}{'exe_time'}).'</td>'
           .'<td>'.$whodunit{$roleslog{$id}{'exe_uname'}.':'.$roleslog{$id}{'exe_udom'}}.'</td>'
           .'<td>'.$changed{$roleslog{$id}{'uname'}.':'.$roleslog{$id}{'udom'}}.'</td>'
           .'<td>'.&Apache::lonnet::plaintext($roleslog{$id}{'logentry'}{'role'},$crstype).'</td>'
           .'<td>'.$sec.'</td>'
           .'<td>'.$chgcontext.'</td>'
           .'<td>'.$rolestart.'</td>'
           .'<td>'.$roleend.'</td>'
           .&Apache::loncommon::end_data_table_row()."\n");
    }

    if ($showntableheader) { # Table footer, if content displayed above
        $r->print(&Apache::loncommon::end_data_table()
                 .$nav_links);
    } else { # No content displayed above
        $r->print('<p class="LC_info">'
                 .&mt('There are no records to display.')
                 .'</p>'
        );
    }

    # Form Footer
    $r->print( 
        '<input type="hidden" name="page" value="'.$curr{'page'}.'" />'
       .'<input type="hidden" name="action" value="changelogs" />'
       .'</form>');
    return;
}

sub userlogdisplay_nav {
    my ($formname,$curr,$more_records) = @_;
    my ($nav_script,$nav_links);
    if (ref($curr) eq 'HASH') {
        # Create Navigation:
        # Navigation Script
        $nav_script = <<"ENDSCRIPT";
<script type="text/javascript">
// <![CDATA[
function chgPage(caller) {
    if (caller == 'previous') {
        document.$formname.page.value --;
    }
    if (caller == 'next') {
        document.$formname.page.value ++;
    }
    document.$formname.submit();
    return;
}
// ]]>
</script>
ENDSCRIPT
        # Navigation Buttons
        $nav_links = '<p>';
        if (($curr->{'page'} > 1) || ($more_records)) {
            if ($curr->{'page'} > 1) {
                $nav_links .= '<input type="button"'
                             .' onclick="javascript:chgPage('."'previous'".');"'
                             .' value="'.&mt('Previous [_1] changes',$curr->{'show'})
                             .'" /> ';
            }
            if ($more_records) {
                $nav_links .= '<input type="button"'
                             .' onclick="javascript:chgPage('."'next'".');"'
                             .' value="'.&mt('Next [_1] changes',$curr->{'show'})
                             .'" />';
            }
        }
        $nav_links .= '</p>';
    }
    return ($nav_script,$nav_links);
}

sub role_display_filter {
    my ($formname,$cdom,$cnum,$curr,$version,$crstype) = @_;
    my $context = 'course';
    my $lctype = lc($crstype);
    my $nolink = 1;
    my $output = '<table><tr><td valign="top">'.
                 '<span class="LC_nobreak"><b>'.&mt('Changes/page:').'</b></span><br />'.
                 &Apache::lonmeta::selectbox('show',$curr->{'show'},undef,
                                              (&mt('all'),5,10,20,50,100,1000,10000)).
                 '</td><td>&nbsp;&nbsp;</td>';
    my $startform =
        &Apache::lonhtmlcommon::date_setter($formname,'rolelog_start_date',
                                            $curr->{'rolelog_start_date'},undef,
                                            undef,undef,undef,undef,undef,undef,$nolink);
    my $endform =
        &Apache::lonhtmlcommon::date_setter($formname,'rolelog_end_date',
                                            $curr->{'rolelog_end_date'},undef,
                                            undef,undef,undef,undef,undef,undef,$nolink);
    my %lt = &rolechg_contexts($crstype);
    $output .= '<td valign="top"><b>'.&mt('Window during which changes occurred:').'</b><br />'.
               '<table><tr><td>'.&mt('After:').
               '</td><td>'.$startform.'</td></tr>'.
               '<tr><td>'.&mt('Before:').'</td>'.
               '<td>'.$endform.'</td></tr></table>'.
               '</td>'.
               '<td>&nbsp;&nbsp;</td>'.
               '<td valign="top"><b>'.&mt('Role:').'</b><br />'.
               '<select name="role"><option value="any"';
    if ($curr->{'role'} eq 'any') {
        $output .= ' selected="selected"';
    }
    $output .=  '>'.&mt('Any').'</option>'."\n";
    my @roles = &Apache::lonuserutils::course_roles($context,undef,1,$lctype);
    foreach my $role (@roles) {
        my $plrole;
        if ($role eq 'cr') {
            $plrole = &mt('Custom Role');
        } else {
            $plrole=&Apache::lonnet::plaintext($role,$crstype);
        }
        my $selstr = '';
        if ($role eq $curr->{'role'}) {
            $selstr = ' selected="selected"';
        }
        $output .= '  <option value="'.$role.'"'.$selstr.'>'.$plrole.'</option>';
    }
    $output .= '</select></td>'.
               '<td>&nbsp;&nbsp;</td>'.
               '<td valign="top"><b>'.
               &mt('Context:').'</b><br /><select name="chgcontext">';
    foreach my $chgtype ('any','auto','updatenow','createcourse','course','domain','selfenroll','requestcourses') {
        my $selstr = '';
        if ($curr->{'chgcontext'} eq $chgtype) {
            $selstr = ' selected="selected"';
        }
        if (($chgtype eq 'auto') || ($chgtype eq 'updatenow')) {
            next if (!&Apache::lonnet::auto_run($cnum,$cdom));
        }
        $output .= '<option value="'.$chgtype.'"'.$selstr.'>'.$lt{$chgtype}.'</option>'."\n";
    }
    $output .= '</select></td>'
              .'</tr></table>';

    # Update Display button
    $output .= '<p>'
              .'<input type="submit" value="'.&mt('Update Display').'" />'
              .'</p>';

    # Server version info
    $output .= '<p class="LC_info">'
              .&mt('Only changes made from servers running LON-CAPA [_1] or later are displayed.'
                  ,'2.6.99.0');
    if ($version) {
        $output .= ' '.&mt('This LON-CAPA server is version [_1]',$version);
    }
    $output .= '</p><hr />';
    return $output;
}

sub rolechg_contexts {
    my ($crstype) = @_;
    my %lt = &Apache::lonlocal::texthash (
                                             any          => 'Any',
                                             auto         => 'Automated enrollment',
                                             updatenow    => 'Roster Update',
                                             createcourse => 'Course Creation',
                                             course       => 'User Management in course',
                                             domain       => 'User Management in domain',
                                             selfenroll   => 'Self-enrolled',
                                             requestcourses => 'Course Request',
                                         );
    if ($crstype eq 'Community') {
        $lt{'createcourse'} = &mt('Community Creation');
        $lt{'course'} = &mt('User Management in community');
        $lt{'requestcourses'} = &mt('Community Request');
    }
    return %lt;
}

#-------------------------------------------------- functions for &phase_two
sub user_search_result {
    my ($context,$srch) = @_;
    my %allhomes;
    my %inst_matches;
    my %srch_results;
    my ($response,$currstate,$forcenewuser,$dirsrchres);
    $srch->{'srchterm'} =~ s/\s+/ /g;
    if ($srch->{'srchby'} !~ /^(uname|lastname|lastfirst)$/) {
        $response = &mt('Invalid search.');
    }
    if ($srch->{'srchin'} !~ /^(crs|dom|alc|instd)$/) {
        $response = &mt('Invalid search.');
    }
    if ($srch->{'srchtype'} !~ /^(exact|contains|begins)$/) {
        $response = &mt('Invalid search.');
    }
    if ($srch->{'srchterm'} eq '') {
        $response = &mt('You must enter a search term.');
    }
    if ($srch->{'srchterm'} =~ /^\s+$/) {
        $response = &mt('Your search term must contain more than just spaces.');
    }
    if (($srch->{'srchin'} eq 'dom') || ($srch->{'srchin'} eq 'instd')) {
        if (($srch->{'srchdomain'} eq '') || 
	    ! (&Apache::lonnet::domain($srch->{'srchdomain'}))) {
            $response = &mt('You must specify a valid domain when searching in a domain or institutional directory.')
        }
    }
    if (($srch->{'srchin'} eq 'dom') || ($srch->{'srchin'} eq 'crs') ||
        ($srch->{'srchin'} eq 'alc')) {
        if ($srch->{'srchby'} eq 'uname') {
            my $unamecheck = $srch->{'srchterm'};
            if ($srch->{'srchtype'} eq 'contains') {
                if ($unamecheck !~ /^\w/) {
                    $unamecheck = 'a'.$unamecheck; 
                }
            }
            if ($unamecheck !~ /^$match_username$/) {
                $response = &mt('You must specify a valid username. Only the following are allowed: letters numbers - . @');
            }
        }
    }
    if ($response ne '') {
        $response = '<span class="LC_warning">'.$response.'</span>';
    }
    if ($srch->{'srchin'} eq 'instd') {
        my $instd_chk = &directorysrch_check($srch);
        if ($instd_chk ne 'ok') {
            $response = '<span class="LC_warning">'.$instd_chk.'</span>'.
                        '<br />'.&mt('You may want to search in the LON-CAPA domain instead of the institutional directory.').'<br /><br />';
        }
    }
    if ($response ne '') {
        return ($currstate,$response);
    }
    if ($srch->{'srchby'} eq 'uname') {
        if (($srch->{'srchin'} eq 'dom') || ($srch->{'srchin'} eq 'crs')) {
            if ($env{'form.forcenew'}) {
                if ($srch->{'srchdomain'} ne $env{'request.role.domain'}) {
                    my $uhome=&Apache::lonnet::homeserver($srch->{'srchterm'},$srch->{'srchdomain'});
                    if ($uhome eq 'no_host') {
                        my $domdesc = &Apache::lonnet::domain($env{'request.role.domain'},'description');
                        my $showdom = &display_domain_info($env{'request.role.domain'});
                        $response = &mt('New users can only be created in the domain to which your current role belongs - [_1].',$showdom);
                    } else {
                        $currstate = 'modify';
                    }
                } else {
                    $currstate = 'modify';
                }
            } else {
                if ($srch->{'srchin'} eq 'dom') {
                    if ($srch->{'srchtype'} eq 'exact') {
                        my $uhome=&Apache::lonnet::homeserver($srch->{'srchterm'},$srch->{'srchdomain'});
                        if ($uhome eq 'no_host') {
                            ($currstate,$response,$forcenewuser) =
                                &build_search_response($context,$srch,%srch_results);
                        } else {
                            $currstate = 'modify';
                            my $uname = $srch->{'srchterm'};
                            my $udom = $srch->{'srchdomain'};
                            $srch_results{$uname.':'.$udom} =
                                { &Apache::lonnet::get('environment',
                                                       ['firstname',
                                                        'lastname',
                                                        'permanentemail'],
                                                         $udom,$uname)
                                };
                        }
                    } else {
                        %srch_results = &Apache::lonnet::usersearch($srch);
                        ($currstate,$response,$forcenewuser) =
                            &build_search_response($context,$srch,%srch_results);
                    }
                } else {
                    my $courseusers = &get_courseusers();
                    if ($srch->{'srchtype'} eq 'exact') {
                        if (exists($courseusers->{$srch->{'srchterm'}.':'.$srch->{'srchdomain'}})) {
                            $currstate = 'modify';
                        } else {
                            ($currstate,$response,$forcenewuser) =
                                &build_search_response($context,$srch,%srch_results);
                        }
                    } else {
                        foreach my $user (keys(%$courseusers)) {
                            my ($cuname,$cudomain) = split(/:/,$user);
                            if ($cudomain eq $srch->{'srchdomain'}) {
                                my $matched = 0;
                                if ($srch->{'srchtype'} eq 'begins') {
                                    if ($cuname =~ /^\Q$srch->{'srchterm'}\E/i) {
                                        $matched = 1;
                                    }
                                } else {
                                    if ($cuname =~ /\Q$srch->{'srchterm'}\E/i) {
                                        $matched = 1;
                                    }
                                }
                                if ($matched) {
                                    $srch_results{$user} = 
					{&Apache::lonnet::get('environment',
							     ['firstname',
							      'lastname',
							      'permanentemail'],
							      $cudomain,$cuname)};
                                }
                            }
                        }
                        ($currstate,$response,$forcenewuser) =
                            &build_search_response($context,$srch,%srch_results);
                    }
                }
            }
        } elsif ($srch->{'srchin'} eq 'alc') {
            $currstate = 'query';
        } elsif ($srch->{'srchin'} eq 'instd') {
            ($dirsrchres,%srch_results) = &Apache::lonnet::inst_directory_query($srch);
            if ($dirsrchres eq 'ok') {
                ($currstate,$response,$forcenewuser) = 
                    &build_search_response($context,$srch,%srch_results);
            } else {
                my $showdom = &display_domain_info($srch->{'srchdomain'});
                $response = '<span class="LC_warning">'.
                    &mt('Institutional directory search is not available in domain: [_1]',$showdom).
                    '</span><br />'.
                    &mt('You may want to search in the LON-CAPA domain instead of the institutional directory.').
                    '<br /><br />'; 
            }
        }
    } else {
        if ($srch->{'srchin'} eq 'dom') {
            %srch_results = &Apache::lonnet::usersearch($srch);
            ($currstate,$response,$forcenewuser) = 
                &build_search_response($context,$srch,%srch_results); 
        } elsif ($srch->{'srchin'} eq 'crs') {
            my $courseusers = &get_courseusers(); 
            foreach my $user (keys(%$courseusers)) {
                my ($uname,$udom) = split(/:/,$user);
                my %names = &Apache::loncommon::getnames($uname,$udom);
                my %emails = &Apache::loncommon::getemails($uname,$udom);
                if ($srch->{'srchby'} eq 'lastname') {
                    if ((($srch->{'srchtype'} eq 'exact') && 
                         ($names{'lastname'} eq $srch->{'srchterm'})) || 
                        (($srch->{'srchtype'} eq 'begins') &&
                         ($names{'lastname'} =~ /^\Q$srch->{'srchterm'}\E/i)) ||
                        (($srch->{'srchtype'} eq 'contains') &&
                         ($names{'lastname'} =~ /\Q$srch->{'srchterm'}\E/i))) {
                        $srch_results{$user} = {firstname => $names{'firstname'},
                                            lastname => $names{'lastname'},
                                            permanentemail => $emails{'permanentemail'},
                                           };
                    }
                } elsif ($srch->{'srchby'} eq 'lastfirst') {
                    my ($srchlast,$srchfirst) = split(/,/,$srch->{'srchterm'});
                    $srchlast =~ s/\s+$//;
                    $srchfirst =~ s/^\s+//;
                    if ($srch->{'srchtype'} eq 'exact') {
                        if (($names{'lastname'} eq $srchlast) &&
                            ($names{'firstname'} eq $srchfirst)) {
                            $srch_results{$user} = {firstname => $names{'firstname'},
                                                lastname => $names{'lastname'},
                                                permanentemail => $emails{'permanentemail'},

                                           };
                        }
                    } elsif ($srch->{'srchtype'} eq 'begins') {
                        if (($names{'lastname'} =~ /^\Q$srchlast\E/i) &&
                            ($names{'firstname'} =~ /^\Q$srchfirst\E/i)) {
                            $srch_results{$user} = {firstname => $names{'firstname'},
                                                lastname => $names{'lastname'},
                                                permanentemail => $emails{'permanentemail'},
                                               };
                        }
                    } else {
                        if (($names{'lastname'} =~ /\Q$srchlast\E/i) && 
                            ($names{'firstname'} =~ /\Q$srchfirst\E/i)) {
                            $srch_results{$user} = {firstname => $names{'firstname'},
                                                lastname => $names{'lastname'},
                                                permanentemail => $emails{'permanentemail'},
                                               };
                        }
                    }
                }
            }
            ($currstate,$response,$forcenewuser) = 
                &build_search_response($context,$srch,%srch_results); 
        } elsif ($srch->{'srchin'} eq 'alc') {
            $currstate = 'query';
        } elsif ($srch->{'srchin'} eq 'instd') {
            ($dirsrchres,%srch_results) = &Apache::lonnet::inst_directory_query($srch); 
            if ($dirsrchres eq 'ok') {
                ($currstate,$response,$forcenewuser) = 
                    &build_search_response($context,$srch,%srch_results);
            } else {
                my $showdom = &display_domain_info($srch->{'srchdomain'});                $response = '<span class="LC_warning">'.
                    &mt('Institutional directory search is not available in domain: [_1]',$showdom).
                    '</span><br />'.
                    &mt('You may want to search in the LON-CAPA domain instead of the institutional directory.').
                    '<br /><br />';
            }
        }
    }
    return ($currstate,$response,$forcenewuser,\%srch_results);
}

sub directorysrch_check {
    my ($srch) = @_;
    my $can_search = 0;
    my $response;
    my %dom_inst_srch = &Apache::lonnet::get_dom('configuration',
                                             ['directorysrch'],$srch->{'srchdomain'});
    my $showdom = &display_domain_info($srch->{'srchdomain'});
    if (ref($dom_inst_srch{'directorysrch'}) eq 'HASH') {
        if (!$dom_inst_srch{'directorysrch'}{'available'}) {
            return &mt('Institutional directory search is not available in domain: [_1]',$showdom); 
        }
        if ($dom_inst_srch{'directorysrch'}{'localonly'}) {
            if ($env{'request.role.domain'} ne $srch->{'srchdomain'}) {
                return &mt('Institutional directory search in domain: [_1] is only allowed for users with a current role in the domain.',$showdom); 
            }
            my @usertypes = split(/:/,$env{'environment.inststatus'});
            if (!@usertypes) {
                push(@usertypes,'default');
            }
            if (ref($dom_inst_srch{'directorysrch'}{'cansearch'}) eq 'ARRAY') {
                foreach my $type (@usertypes) {
                    if (grep(/^\Q$type\E$/,@{$dom_inst_srch{'directorysrch'}{'cansearch'}})) {
                        $can_search = 1;
                        last;
                    }
                }
            }
            if (!$can_search) {
                my ($insttypes,$order) = &Apache::lonnet::retrieve_inst_usertypes($srch->{'srchdomain'});
                my @longtypes; 
                foreach my $item (@usertypes) {
                    if (defined($insttypes->{$item})) { 
                        push (@longtypes,$insttypes->{$item});
                    } elsif ($item eq 'default') {
                        push (@longtypes,&mt('other')); 
                    }
                }
                my $insttype_str = join(', ',@longtypes); 
                return &mt('Institutional directory search in domain: [_1] is not available to your user type: ',$showdom).$insttype_str;
            }
        } else {
            $can_search = 1;
        }
    } else {
        return &mt('Institutional directory search has not been configured for domain: [_1]',$showdom);
    }
    my %longtext = &Apache::lonlocal::texthash (
                       uname     => 'username',
                       lastfirst => 'last name, first name',
                       lastname  => 'last name',
                       contains  => 'contains',
                       exact     => 'as exact match to',
                       begins    => 'begins with',
                   );
    if ($can_search) {
        if (ref($dom_inst_srch{'directorysrch'}{'searchby'}) eq 'ARRAY') {
            if (!grep(/^\Q$srch->{'srchby'}\E$/,@{$dom_inst_srch{'directorysrch'}{'searchby'}})) {
                return &mt('Institutional directory search in domain: [_1] is not available for searching by "[_2]"',$showdom,$longtext{$srch->{'srchby'}});
            }
        } else {
            return &mt('Institutional directory search in domain: [_1] is not available.', $showdom);
        }
    }
    if ($can_search) {
        if (ref($dom_inst_srch{'directorysrch'}{'searchtypes'}) eq 'ARRAY') {
            if (grep(/^\Q$srch->{'srchtype'}\E/,@{$dom_inst_srch{'directorysrch'}{'searchtypes'}})) {
                return 'ok';
            } else {
                return &mt('Institutional directory search in domain [_1] is not available for the requested search type: "[_2]"',$showdom,$longtext{$srch->{'srchtype'}});
            }
        } else {
            if ((($dom_inst_srch{'directorysrch'}{'searchtypes'} eq 'specify') &&
                 ($srch->{'srchtype'} eq 'exact' || $srch->{'srchtype'} eq 'contains')) ||
                ($dom_inst_srch{'directorysrch'}{'searchtypes'} eq $srch->{'srchtype'})) {
                return 'ok';
            } else {
                return &mt('Institutional directory search in domain [_1] is not available for the requested search type: "[_2]"',$showdom,$longtext{$srch->{'srchtype'}});
            }
        }
    }
}

sub get_courseusers {
    my %advhash;
    my $classlist = &Apache::loncoursedata::get_classlist();
    my %coursepersonnel=&Apache::lonnet::get_course_adv_roles();
    foreach my $role (sort(keys(%coursepersonnel))) {
        foreach my $user (split(/\,/,$coursepersonnel{$role})) {
	    if (!exists($classlist->{$user})) {
		$classlist->{$user} = [];
	    }
        }
    }
    return $classlist;
}

sub build_search_response {
    my ($context,$srch,%srch_results) = @_;
    my ($currstate,$response,$forcenewuser);
    my %names = (
          'uname'     => 'username',
          'lastname'  => 'last name',
          'lastfirst' => 'last name, first name',
          'crs'       => 'this course',
          'dom'       => 'LON-CAPA domain',
          'instd'     => 'the institutional directory for domain',
    );

    my %single = (
                   begins   => 'A match',
                   contains => 'A match',
                   exact    => 'An exact match',
                 );
    my %nomatch = (
                   begins   => 'No match',
                   contains => 'No match',
                   exact    => 'No exact match',
                  );
    if (keys(%srch_results) > 1) {
        $currstate = 'select';
    } else {
        if (keys(%srch_results) == 1) {
            $currstate = 'modify';
            $response = &mt("$single{$srch->{'srchtype'}} was found for the $names{$srch->{'srchby'}} ([_1]) in $names{$srch->{'srchin'}}.",$srch->{'srchterm'});
            if ($srch->{'srchin'} eq 'dom' || $srch->{'srchin'} eq 'instd') {
                $response .= ': '.&display_domain_info($srch->{'srchdomain'});
            }
        } else { # Search has nothing found. Prepare message to user.
            $response = '<span class="LC_warning">';
            if ($srch->{'srchin'} eq 'dom' || $srch->{'srchin'} eq 'instd') {
                $response .= &mt("$nomatch{$srch->{'srchtype'}} found for the $names{$srch->{'srchby'}} [_1] in $names{$srch->{'srchin'}}: [_2]",
                                 '<b>'.$srch->{'srchterm'}.'</b>',
                                 &display_domain_info($srch->{'srchdomain'}));
            } else {
                $response .= &mt("$nomatch{$srch->{'srchtype'}} found for the $names{$srch->{'srchby'}} [_1] in $names{$srch->{'srchin'}}.",
                                 '<b>'.$srch->{'srchterm'}.'</b>');
            }
            $response .= '</span>';

            if ($srch->{'srchin'} ne 'alc') {
                $forcenewuser = 1;
                my $cansrchinst = 0; 
                if ($srch->{'srchdomain'}) {
                    my %domconfig = &Apache::lonnet::get_dom('configuration',['directorysrch'],$srch->{'srchdomain'});
                    if (ref($domconfig{'directorysrch'}) eq 'HASH') {
                        if ($domconfig{'directorysrch'}{'available'}) {
                            $cansrchinst = 1;
                        } 
                    }
                }
                if ((($srch->{'srchby'} eq 'lastfirst') || 
                     ($srch->{'srchby'} eq 'lastname')) &&
                    ($srch->{'srchin'} eq 'dom')) {
                    if ($cansrchinst) {
                        $response .= '<br />'.&mt('You may want to broaden your search to a search of the institutional directory for the domain.');
                    }
                }
                if ($srch->{'srchin'} eq 'crs') {
                    $response .= '<br />'.&mt('You may want to broaden your search to the selected LON-CAPA domain.');
                }
            }
            my $createdom = $env{'request.role.domain'};
            if ($context eq 'requestcrs') {
                if ($env{'form.coursedom'} ne '') {
                    $createdom = $env{'form.coursedom'};
                }
            }
            if (!($srch->{'srchby'} eq 'uname' && $srch->{'srchin'} eq 'dom' && $srch->{'srchtype'} eq 'exact' && $srch->{'srchdomain'} eq $createdom)) {
                my $cancreate =
                    &Apache::lonuserutils::can_create_user($createdom,$context);
                my $targetdom = '<span class="LC_cusr_emph">'.$createdom.'</span>';
                if ($cancreate) {
                    my $showdom = &display_domain_info($createdom); 
                    $response .= '<br /><br />'
                                .'<b>'.&mt('To add a new user:').'</b>'
                                .'<br />';
                    if ($context eq 'requestcrs') {
                        $response .= &mt("(You can only define new users in the new course's domain - [_1])",$targetdom);
                    } else {
                        $response .= &mt("(You can only create new users in your current role's domain - [_1])",$targetdom);
                    }
                    $response .='<ul><li>'
                                .&mt("Set 'Domain/institution to search' to: [_1]",'<span class="LC_cusr_emph">'.$showdom.'</span>')
                                .'</li><li>'
                                .&mt("Set 'Search criteria' to: [_1]username is ..... in selected LON-CAPA domain[_2]",'<span class="LC_cusr_emph">','</span>')
                                .'</li><li>'
                                .&mt('Provide the proposed username')
                                .'</li><li>'
                                .&mt("Click 'Search'")
                                .'</li></ul><br />';
                } else {
                    my $helplink = ' href="javascript:helpMenu('."'display'".')"';
                    $response .= '<br /><br />';
                    if ($context eq 'requestcrs') {
                        $response .= &mt("You are not authorized to define new users in the new course's domain - [_1].",$targetdom);
                    } else {
                        $response .= &mt("You are not authorized to create new users in your current role's domain - [_1].",$targetdom);
                    }
                    $response .= '<br />'
                                 .&mt('Please contact the [_1]helpdesk[_2] if you need to create a new user.'
                                    ,' <a'.$helplink.'>'
                                    ,'</a>')
                                 .'<br /><br />';
                }
            }
        }
    }
    return ($currstate,$response,$forcenewuser);
}

sub display_domain_info {
    my ($dom) = @_;
    my $output = $dom;
    if ($dom ne '') { 
        my $domdesc = &Apache::lonnet::domain($dom,'description');
        if ($domdesc ne '') {
            $output .= ' <span class="LC_cusr_emph">('.$domdesc.')</span>';
        }
    }
    return $output;
}

sub crumb_utilities {
    my %elements = (
       crtuser => {
           srchterm => 'text',
           srchin => 'selectbox',
           srchby => 'selectbox',
           srchtype => 'selectbox',
           srchdomain => 'selectbox',
       },
       crtusername => {
           srchterm => 'text',
           srchdomain => 'selectbox',
       },
       docustom => {
           rolename => 'selectbox',
           newrolename => 'textbox',
       },
       studentform => {
           srchterm => 'text',
           srchin => 'selectbox',
           srchby => 'selectbox',
           srchtype => 'selectbox',
           srchdomain => 'selectbox',
       },
    );

    my $jsback .= qq|
function backPage(formname,prevphase,prevstate) {
    if (typeof prevphase == 'undefined') {
        formname.phase.value = '';
    }
    else {  
        formname.phase.value = prevphase;
    }
    if (typeof prevstate == 'undefined') {
        formname.currstate.value = '';
    }
    else {
        formname.currstate.value = prevstate;
    }
    formname.submit();
}
|;
    return ($jsback,\%elements);
}

sub course_level_table {
    my (%inccourses) = @_;
    my $table = '';
# Custom Roles?

    my %customroles=&Apache::lonuserutils::my_custom_roles();
    my %lt=&Apache::lonlocal::texthash(
            'exs'  => "Existing sections",
            'new'  => "Define new section",
            'ssd'  => "Set Start Date",
            'sed'  => "Set End Date",
            'crl'  => "Course Level",
            'act'  => "Activate",
            'rol'  => "Role",
            'ext'  => "Extent",
            'grs'  => "Section",
            'sta'  => "Start",
            'end'  => "End"
    );

    foreach my $protectedcourse (sort(keys(%inccourses))) {
	my $thiscourse=$protectedcourse;
	$thiscourse=~s:_:/:g;
	my %coursedata=&Apache::lonnet::coursedescription($thiscourse);
        my $isowner = &is_courseowner($protectedcourse,$coursedata{'internal.courseowner'});
	my $area=$coursedata{'description'};
        my $crstype=$coursedata{'type'};
	if (!defined($area)) { $area=&mt('Unavailable course').': '.$protectedcourse; }
	my ($domain,$cnum)=split(/\//,$thiscourse);
        my %sections_count;
        if (defined($env{'request.course.id'})) {
            if ($env{'request.course.id'} eq $domain.'_'.$cnum) {
                %sections_count = 
		    &Apache::loncommon::get_sections($domain,$cnum);
            }
        }
        my @roles = &Apache::lonuserutils::roles_by_context('course','',$crstype);
	foreach my $role (@roles) {
            my $plrole=&Apache::lonnet::plaintext($role,$crstype);
	    if ((&Apache::lonnet::allowed('c'.$role,$thiscourse)) ||
                ((($role eq 'cc') || ($role eq 'co')) && ($isowner))) {
                $table .= &course_level_row($protectedcourse,$role,$area,$domain,
                                            $plrole,\%sections_count,\%lt);
            } elsif ($env{'request.course.sec'} ne '') {
                if (&Apache::lonnet::allowed('c'.$role,$thiscourse.'/'.
                                             $env{'request.course.sec'})) {
                    $table .= &course_level_row($protectedcourse,$role,$area,$domain,
                                                $plrole,\%sections_count,\%lt);
                }
            }
        }
        if (&Apache::lonnet::allowed('ccr',$thiscourse)) {
            foreach my $cust (sort(keys(%customroles))) {
                next if ($crstype eq 'Community' && $customroles{$cust} =~ /bre\&S/);
                my $role = 'cr_cr_'.$env{'user.domain'}.'_'.$env{'user.name'}.'_'.$cust;
                $table .= &course_level_row($protectedcourse,$role,$area,$domain,
                                            $cust,\%sections_count,\%lt);
            }
	}
    }
    return '' if ($table eq ''); # return nothing if there is nothing 
                                 # in the table
    my $result;
    if (!$env{'request.course.id'}) {
        $result = '<h4>'.$lt{'crl'}.'</h4>'."\n";
    }
    $result .= 
&Apache::loncommon::start_data_table().
&Apache::loncommon::start_data_table_header_row().
'<th>'.$lt{'act'}.'</th><th>'.$lt{'rol'}.'</th><th>'.$lt{'ext'}.'</th>
<th>'.$lt{'grs'}.'</th><th>'.$lt{'sta'}.'</th><th>'.$lt{'end'}.'</th>'.
&Apache::loncommon::end_data_table_header_row().
$table.
&Apache::loncommon::end_data_table();
    return $result;
}

sub course_level_row {
    my ($protectedcourse,$role,$area,$domain,$plrole,$sections_count,$lt) = @_;
    my $row = &Apache::loncommon::start_data_table_row().
              ' <td><input type="checkbox" name="act_'.
              $protectedcourse.'_'.$role.'" /></td>'."\n".
              ' <td>'.$plrole.'</td>'."\n".
              ' <td>'.$area.'<br />Domain: '.$domain.'</td>'."\n";
    if (($role eq 'cc') || ($role eq 'co')) {
        $row .= '<td>&nbsp;</td>';
    } elsif ($env{'request.course.sec'} ne '') {
        $row .= ' <td><input type="hidden" value="'.
                $env{'request.course.sec'}.'" '.
                'name="sec_'.$protectedcourse.'_'.$role.'" />'.
                $env{'request.course.sec'}.'</td>';
    } else {
        if (ref($sections_count) eq 'HASH') {
            my $currsec = 
                &Apache::lonuserutils::course_sections($sections_count,
                                                       $protectedcourse.'_'.$role);
            $row .= '<td><table class="LC_createuser">'."\n".
                    '<tr class="LC_section_row">'."\n".
                    ' <td valign="top">'.$lt->{'exs'}.'<br />'.
                       $currsec.'</td>'."\n".
                     ' <td>&nbsp;&nbsp;</td>'."\n".
                     ' <td valign="top">&nbsp;'.$lt->{'new'}.'<br />'.
                     '<input type="text" name="newsec_'.$protectedcourse.'_'.$role.
                     '" value="" />'.
                     '<input type="hidden" '.
                     'name="sec_'.$protectedcourse.'_'.$role.'" /></td>'."\n".
                     '</tr></table></td>'."\n";
        } else {
            $row .= '<td><input type="text" size="10" '.
                      'name="sec_'.$protectedcourse.'_'.$role.'" /></td>'."\n";
        }
    }
    $row .= <<ENDTIMEENTRY;
<td><input type="hidden" name="start_$protectedcourse\_$role" value="" />
<a href=
"javascript:pjump('date_start','Start Date $plrole',document.cu.start_$protectedcourse\_$role.value,'start_$protectedcourse\_$role','cu.pres','dateset')">$lt->{'ssd'}</a></td>
<td><input type="hidden" name="end_$protectedcourse\_$role" value="" />
<a href=
"javascript:pjump('date_end','End Date $plrole',document.cu.end_$protectedcourse\_$role.value,'end_$protectedcourse\_$role','cu.pres','dateset')">$lt->{'sed'}</a></td>
ENDTIMEENTRY
    $row .= &Apache::loncommon::end_data_table_row();
    return $row;
}

sub course_level_dc {
    my ($dcdom) = @_;
    my %customroles=&Apache::lonuserutils::my_custom_roles();
    my @roles = &Apache::lonuserutils::roles_by_context('course');
    my $hiddenitems = '<input type="hidden" name="dcdomain" value="'.$dcdom.'" />'.
                      '<input type="hidden" name="origdom" value="'.$dcdom.'" />'.
                      '<input type="hidden" name="dccourse" value="" />';
    my $courseform=&Apache::loncommon::selectcourse_link
            ('cu','dccourse','dcdomain','coursedesc',undef,undef,'Select','crstype');
    my $cb_jscript = &Apache::loncommon::coursebrowser_javascript($dcdom,'currsec','cu','role','Course/Community Browser');
    my %lt=&Apache::lonlocal::texthash(
                    'rol'  => "Role",
                    'grs'  => "Section",
                    'exs'  => "Existing sections",
                    'new'  => "Define new section", 
                    'sta'  => "Start",
                    'end'  => "End",
                    'ssd'  => "Set Start Date",
                    'sed'  => "Set End Date",
                    'scc'  => "Course/Community"
                  );
    my $header = '<h4>'.&mt('Course/Community Level').'</h4>'.
                 &Apache::loncommon::start_data_table().
                 &Apache::loncommon::start_data_table_header_row().
                 '<th>'.$lt{'scc'}.'</th><th>'.$lt{'rol'}.'</th><th>'.$lt{'grs'}.'</th><th>'.$lt{'sta'}.'</th><th>'.$lt{'end'}.'</th>'.
                 &Apache::loncommon::end_data_table_header_row();
    my $otheritems = &Apache::loncommon::start_data_table_row()."\n".
                     '<td><br /><span class="LC_nobreak"><input type="text" name="coursedesc" value="" onfocus="this.blur();opencrsbrowser('."'cu','dccourse','dcdomain','coursedesc','','','','crstype'".')" />'.
                     $courseform.('&nbsp;' x4).'</span></td>'."\n".
                     '<td valign><br /><select name="role">'."\n";
    foreach my $role (@roles) {
        my $plrole=&Apache::lonnet::plaintext($role);
        $otheritems .= '  <option value="'.$role.'">'.$plrole;
    }
    if ( keys %customroles > 0) {
        foreach my $cust (sort keys %customroles) {
            my $custrole='cr_cr_'.$env{'user.domain'}.
                    '_'.$env{'user.name'}.'_'.$cust;
            $otheritems .= '  <option value="'.$custrole.'">'.$cust;
        }
    }
    $otheritems .= '</select></td><td>'.
                     '<table border="0" cellspacing="0" cellpadding="0">'.
                     '<tr><td valign="top"><b>'.$lt{'exs'}.'</b><br /><select name="currsec">'.
                     ' <option value=""><--'.&mt('Pick course first').'</select></td>'.
                     '<td>&nbsp;&nbsp;</td>'.
                     '<td valign="top">&nbsp;<b>'.$lt{'new'}.'</b><br />'.
                     '<input type="text" name="newsec" value="" />'.
                     '<input type="hidden" name="section" value="" />'.
                     '<input type="hidden" name="groups" value="" />'.
                     '<input type="hidden" name="crstype" value="" /></td>'.
                     '</tr></table></td>';
    $otheritems .= <<ENDTIMEENTRY;
<td><br /><input type="hidden" name="start" value='' />
<a href=
"javascript:pjump('date_start','Start Date',document.cu.start.value,'start','cu.pres','dateset')">$lt{'ssd'}</a></td>
<td><br /><input type="hidden" name="end" value='' />
<a href=
"javascript:pjump('date_end','End Date',document.cu.end.value,'end','cu.pres','dateset')">$lt{'sed'}</a></td>
ENDTIMEENTRY
    $otheritems .= &Apache::loncommon::end_data_table_row().
                   &Apache::loncommon::end_data_table()."\n";
    return $cb_jscript.$header.$hiddenitems.$otheritems;
}

sub update_selfenroll_config {
    my ($r,$context,$permission) = @_;
    my ($row,$lt) = &get_selfenroll_titles();
    my %curr_groups = &Apache::longroup::coursegroups();
    my (%changes,%warning);
    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
    my $curr_types;
    if (ref($row) eq 'ARRAY') {
        foreach my $item (@{$row}) {
            if ($item eq 'enroll_dates') {
                my (%currenrolldate,%newenrolldate);
                foreach my $type ('start','end') {
                    $currenrolldate{$type} = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_'.$type.'_date'};
                    $newenrolldate{$type} = &Apache::lonhtmlcommon::get_date_from_form('selfenroll_'.$type.'_date');
                    if ($newenrolldate{$type} ne $currenrolldate{$type}) {
                        $changes{'internal.selfenroll_'.$type.'_date'} = $newenrolldate{$type};
                    }
                }
            } elsif ($item eq 'access_dates') {
                my (%currdate,%newdate);
                foreach my $type ('start','end') {
                    $currdate{$type} = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_'.$type.'_access'};
                    $newdate{$type} = &Apache::lonhtmlcommon::get_date_from_form('selfenroll_'.$type.'_access');
                    if ($newdate{$type} ne $currdate{$type}) {
                        $changes{'internal.selfenroll_'.$type.'_access'} = $newdate{$type};
                    }
                }
            } elsif ($item eq 'types') {
                $curr_types =
                    $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_'.$item};
                if ($env{'form.selfenroll_all'}) {
                    if ($curr_types ne '*') {
                        $changes{'internal.selfenroll_types'} = '*';
                    } else {
                        next;
                    }
                } else {
                    my %currdoms;
                    my @entries = split(/;/,$curr_types);
                    my @deletedoms = &Apache::loncommon::get_env_multiple('form.selfenroll_delete');
                    my @activations = &Apache::loncommon::get_env_multiple('form.selfenroll_activate');
                    my $newnum = 0;
                    my @latesttypes;
                    foreach my $num (@activations) {
                        my @types = &Apache::loncommon::get_env_multiple('form.selfenroll_types_'.$num);
                        if (@types > 0) {
                            @types = sort(@types);
                            my $typestr = join(',',@types);
                            my $typedom = $env{'form.selfenroll_dom_'.$num};
                            $latesttypes[$newnum] = $typedom.':'.$typestr;
                            $currdoms{$typedom} = 1;
                            $newnum ++;
                        }
                    }
                    for (my $j=0; $j<$env{'form.selfenroll_types_total'}; $j++) {
                        if ((!grep(/^$j$/,@deletedoms)) && (!grep(/^$j$/,@activations))) {
                            my @types = &Apache::loncommon::get_env_multiple('form.selfenroll_types_'.$j);
                            if (@types > 0) {
                                @types = sort(@types);
                                my $typestr = join(',',@types);
                                my $typedom = $env{'form.selfenroll_dom_'.$j};
                                $latesttypes[$newnum] = $typedom.':'.$typestr;
                                $currdoms{$typedom} = 1;
                                $newnum ++;
                            }
                        }
                    }
                    if ($env{'form.selfenroll_newdom'} ne '') {
                        my $typedom = $env{'form.selfenroll_newdom'};
                        if ((!defined($currdoms{$typedom})) && 
                            (&Apache::lonnet::domain($typedom) ne '')) {
                            my $typestr;
                            my ($othertitle,$usertypes,$types) = 
                                &Apache::loncommon::sorted_inst_types($typedom);
                            my $othervalue = 'any';
                            if ((ref($types) eq 'ARRAY') && (ref($usertypes) eq 'HASH')) {
                                if (@{$types} > 0) {
                                    my @esc_types = map { &escape($_); } @{$types};
                                    $othervalue = 'other';
                                    $typestr = join(',',(@esc_types,$othervalue));
                                }
                                $typestr = $othervalue;
                            } else {
                                $typestr = $othervalue;
                            } 
                            $latesttypes[$newnum] = $typedom.':'.$typestr;
                            $newnum ++ ;
                        }
                    }
                    my $selfenroll_types = join(';',@latesttypes);
                    if ($selfenroll_types ne $curr_types) {
                        $changes{'internal.selfenroll_types'} = $selfenroll_types;
                    }
                }
            } elsif ($item eq 'limit') {
                my $newlimit = $env{'form.selfenroll_limit'};
                my $newcap = $env{'form.selfenroll_cap'};
                $newcap =~s/\s+//g;
                my $currlimit =  $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_limit'};
                $currlimit = 'none' if ($currlimit eq '');
                my $currcap = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_cap'};
                if ($newlimit ne $currlimit) {
                    if ($newlimit ne 'none') {
                        if ($newcap =~ /^\d+$/) {
                            if ($newcap ne $currcap) {
                                $changes{'internal.selfenroll_cap'} = $newcap;
                            }
                            $changes{'internal.selfenroll_limit'} = $newlimit;
                        } else {
                            $warning{$item} = &mt('Maximum enrollment setting unchanged.').'<br />'.&mt('The value provided was invalid - it must be a positive integer if enrollment is being limited.'); 
                        }
                    } elsif ($currcap ne '') {
                        $changes{'internal.selfenroll_cap'} = '';
                        $changes{'internal.selfenroll_limit'} = $newlimit; 
                    }
                } elsif ($currlimit ne 'none') {
                    if ($newcap =~ /^\d+$/) {
                        if ($newcap ne $currcap) {
                            $changes{'internal.selfenroll_cap'} = $newcap;
                        }
                    } else {
                        $warning{$item} = &mt('Maximum enrollment setting unchanged.').'<br />'.&mt('The value provided was invalid - it must be a positive integer if enrollment is being limited.');
                    }
                }
            } elsif ($item eq 'approval') {
                my (@currnotified,@newnotified);
                my $currapproval = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_approval'};
                my $currnotifylist = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_notifylist'};
                if ($currnotifylist ne '') {
                    @currnotified = split(/,/,$currnotifylist);
                    @currnotified = sort(@currnotified);
                }
                my $newapproval = $env{'form.selfenroll_approval'};
                @newnotified = &Apache::loncommon::get_env_multiple('form.selfenroll_notify');
                @newnotified = sort(@newnotified);
                if ($newapproval ne $currapproval) {
                    $changes{'internal.selfenroll_approval'} = $newapproval;
                    if (!$newapproval) {
                        if ($currnotifylist ne '') {
                            $changes{'internal.selfenroll_notifylist'} = '';
                        }
                    } else {
                        my @differences =  
                            &Apache::loncommon::compare_arrays(\@currnotified,\@newnotified);
                        if (@differences > 0) {
                            if (@newnotified > 0) {
                                $changes{'internal.selfenroll_notifylist'} = join(',',@newnotified);
                            } else {
                                $changes{'internal.selfenroll_notifylist'} = join(',',@newnotified);
                            }
                        }
                    }
                } else {
                    my @differences = &Apache::loncommon::compare_arrays(\@currnotified,\@newnotified);
                    if (@differences > 0) {
                        if (@newnotified > 0) {
                            $changes{'internal.selfenroll_notifylist'} = join(',',@newnotified);
                        } else {
                            $changes{'internal.selfenroll_notifylist'} = '';
                        }
                    }
                }
            } else {
                my $curr_val = 
                    $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_'.$item};
                my $newval = $env{'form.selfenroll_'.$item};
                if ($item eq 'section') {
                    $newval = $env{'form.sections'};
                    if (defined($curr_groups{$newval})) {
                        $newval = $curr_val;
                        $warning{$item} = &mt('Section for self-enrolled users unchanged as the proposed section is a group').'<br />'.&mt('Group names and section names must be distinct');
                    } elsif ($newval eq 'all') {
                        $newval = $curr_val;
                        $warning{$item} = &mt('Section for self-enrolled users unchanged, as "all" is a reserved section name.');
                    }
                    if ($newval eq '') {
                        $newval = 'none';
                    }
                }
                if ($newval ne $curr_val) {
                    $changes{'internal.selfenroll_'.$item} = $newval;
                }
            }
        }
        if (keys(%warning) > 0) {
            foreach my $item (@{$row}) {
                if (exists($warning{$item})) {
                    $r->print($warning{$item}.'<br />');
                }
            } 
        }
        if (keys(%changes) > 0) {
            my $putresult = &Apache::lonnet::put('environment',\%changes,$cdom,$cnum);
            if ($putresult eq 'ok') {
                if ((exists($changes{'internal.selfenroll_types'})) ||
                    (exists($changes{'internal.selfenroll_start_date'}))  ||
                    (exists($changes{'internal.selfenroll_end_date'}))) {
                    my %crsinfo = &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',
                                                                $cnum,undef,undef,'Course');
                    my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
                    if (ref($crsinfo{$env{'request.course.id'}}) eq 'HASH') {
                        foreach my $item ('selfenroll_types','selfenroll_start_date','selfenroll_end_date') {
                            if (exists($changes{'internal.'.$item})) {
                                $crsinfo{$env{'request.course.id'}}{$item} = 
                                    $changes{'internal.'.$item};
                            }
                        }
                        my $crsputresult =
                            &Apache::lonnet::courseidput($cdom,\%crsinfo,
                                                         $chome,'notime');
                    }
                }
                $r->print(&mt('The following changes were made to self-enrollment settings:').'<ul>');
                foreach my $item (@{$row}) {
                    my $title = $item;
                    if (ref($lt) eq 'HASH') {
                        $title = $lt->{$item};
                    }
                    if ($item eq 'enroll_dates') {
                        foreach my $type ('start','end') {
                            if (exists($changes{'internal.selfenroll_'.$type.'_date'})) {
                                my $newdate = &Apache::lonlocal::locallocaltime($changes{'internal.selfenroll_'.$type.'_date'});
                                $r->print('<li>'.&mt('[_1]: "[_2]" set to "[_3]".',
                                          $title,$type,$newdate).'</li>');
                            }
                        }
                    } elsif ($item eq 'access_dates') {
                        foreach my $type ('start','end') {
                            if (exists($changes{'internal.selfenroll_'.$type.'_access'})) {
                                my $newdate = &Apache::lonlocal::locallocaltime($changes{'internal.selfenroll_'.$type.'_access'});
                                $r->print('<li>'.&mt('[_1]: "[_2]" set to "[_3]".',
                                          $title,$type,$newdate).'</li>');
                            }
                        }
                    } elsif ($item eq 'limit') {
                        if ((exists($changes{'internal.selfenroll_limit'})) ||
                            (exists($changes{'internal.selfenroll_cap'}))) {
                            my ($newval,$newcap);
                            if ($changes{'internal.selfenroll_cap'} ne '') {
                                $newcap = $changes{'internal.selfenroll_cap'}
                            } else {
                                $newcap = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_cap'};
                            }
                            if ($changes{'internal.selfenroll_limit'} eq 'none') {
                                $newval = &mt('No limit');
                            } elsif ($changes{'internal.selfenroll_limit'} eq 
                                     'allstudents') {
                                $newval = &mt('New self-enrollment no longer allowed when total (all students) reaches [_1].',$newcap);
                            } elsif ($changes{'internal.selfenroll_limit'} eq 'selfenrolled') {
                                $newval = &mt('New self-enrollment no longer allowed when total number of self-enrolled students reaches [_1].',$newcap);
                            } else {
                                my $currlimit =  $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_limit'};
                                if ($currlimit eq 'allstudents') {
                                    $newval = &mt('New self-enrollment no longer allowed when total (all students) reaches [_1].',$newcap);
                                } elsif ($changes{'internal.selfenroll_limit'} eq 'selfenrolled') {
                                    $newval =  &mt('New self-enrollment no longer allowed when total number of self-enrolled students reaches [_1].',$newcap);
                                }
                            }
                            $r->print('<li>'.&mt('"[_1]" set to "[_2]".',$title,$newval).'</li>'."\n");
                        }
                    } elsif ($item eq 'approval') {
                        if ((exists($changes{'internal.selfenroll_approval'})) ||
                            (exists($changes{'internal.selfenroll_notifylist'}))) {
                            my ($newval,$newnotify);
                            if (exists($changes{'internal.selfenroll_notifylist'})) {
                                $newnotify = $changes{'internal.selfenroll_notifylist'};
                            } else {   
                                $newnotify = $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_notifylist'};
                            }
                            if ($changes{'internal.selfenroll_approval'}) {
                                $newval = &mt('Yes');
                            } elsif ($changes{'internal.selfenroll_approval'} eq '0') {
                                $newval = &mt('No');
                            } else {
                                my $currapproval = 
                                    $env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_approval'};
                                if ($currapproval) {
                                    $newval = &mt('Yes');
                                } else {
                                    $newval = &mt('No');
                                }
                            }
                            $r->print('<li>'.&mt('"[_1]" set to "[_2]".',$title,$newval));
                            if ($newnotify) {
                                $r->print('<br />'.&mt('The following will be notified when an enrollment request needs approval, or has been approved: [_1].',$newnotify));
                            } else {
                                $r->print('<br />'.&mt('No notifications sent when an enrollment request needs approval, or has been approved.'));
                            }
                            $r->print('</li>'."\n");
                        }
                    } else {
                        if (exists($changes{'internal.selfenroll_'.$item})) {
                            my $newval = $changes{'internal.selfenroll_'.$item};
                            if ($item eq 'types') {
                                if ($newval eq '') {
                                    $newval = &mt('None');
                                } elsif ($newval eq '*') {
                                    $newval = &mt('Any user in any domain');
                                }
                            } elsif ($item eq 'registered') {
                                if ($newval eq '1') {
                                    $newval = &mt('Yes');
                                } elsif ($newval eq '0') {
                                    $newval = &mt('No');
                                }
                            }
                            $r->print('<li>'.&mt('"[_1]" set to "[_2]".',$title,$newval).'</li>'."\n");
                        }
                    }
                }
                $r->print('</ul>');
                my %newenvhash;
                foreach my $key (keys(%changes)) {
                    $newenvhash{'course.'.$env{'request.course.id'}.'.'.$key} = $changes{$key};
                }
                &Apache::lonnet::appenv(\%newenvhash);
            } else {
                $r->print(&mt('An error occurred when saving changes to self-enrollment settings in this course.').'<br />'.&mt('The error was: [_1].',$putresult));
            }
        } else {
            $r->print(&mt('No changes were made to the existing self-enrollment settings in this course.'));
        }
    } else {
        $r->print(&mt('No changes were made to the existing self-enrollment settings in this course.'));
    }
    my ($visible,$cansetvis,$vismsgs,$visactions) = &visible_in_cat($cdom,$cnum);
    if (ref($visactions) eq 'HASH') {
        if (!$visible) {
            $r->print('<br />'.$visactions->{'miss'}.'<br />'.$visactions->{'yous'}.
                      '<br />');
            if (ref($vismsgs) eq 'ARRAY') {
                $r->print('<br />'.$visactions->{'take'}.'<ul>');
                foreach my $item (@{$vismsgs}) {
                    $r->print('<li>'.$visactions->{$item}.'</li>');
                }
                $r->print('</ul>');
            }
            $r->print($cansetvis);
        }
    } 
    return;
}

sub get_selfenroll_titles {
    my @row = ('types','registered','enroll_dates','access_dates','section',
               'approval','limit');
    my %lt = &Apache::lonlocal::texthash (
                types        => 'Users allowed to self-enroll in this course',
                registered   => 'Restrict self-enrollment to students officially registered for the course',
                enroll_dates => 'Dates self-enrollment available',
                access_dates => 'Course access dates assigned to self-enrolling users',
                section      => 'Section assigned to self-enrolling users',
                approval     => 'Self-enrollment requests need approval?',
                limit        => 'Enrollment limit',
             );
    return (\@row,\%lt);
}

sub is_courseowner {
    my ($thiscourse,$courseowner) = @_;
    if ($courseowner eq '') {
        if ($env{'request.course.id'} eq $thiscourse) {
            $courseowner = $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
        }
    }
    if ($courseowner ne '') {
        if ($courseowner eq $env{'user.name'}.':'.$env{'user.domain'}) {
            return 1;
        }
    }
    return;
}

#---------------------------------------------- end functions for &phase_two

#--------------------------------- functions for &phase_two and &phase_three

#--------------------------end of functions for &phase_two and &phase_three

1;
__END__