# The LearningOnline Network with CAPA
# Handler to set domain-wide configuration settings
#
# $Id: lonconfigsettings.pm,v 1.72 2023/09/24 03:31:18 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::lonconfigsettings;

use strict;
use Apache::lonnet;
use Apache::loncommon();
use Apache::lonhtmlcommon();
use Apache::lonlocal;
use Apache::lonparmset();
use Apache::courseclassifier();
use LONCAPA qw(:DEFAULT :match);
use File::Copy;

sub print_header {
    my ($r,$phase,$context,$jscript,$container,$instcode,$dom,$confname,$values) = @_;
    my ($pagetitle,$brcrumtitle,$action,$call_category_check,$instcode_check,
        $linkprot_check,$ltitools_check,$crstype,@actions,@code_order);
    if ($phase eq 'display') {
        @actions = &Apache::loncommon::get_env_multiple('form.actions');
    }
    if ($context eq 'domain') {
        ($pagetitle, $brcrumtitle) = ('View/Modify Domain Settings','View/Modify Domain Settings');
        $action = '/adm/domainprefs';
        if ($phase eq 'display') {
            if (grep(/^coursecategories$/,@actions)) {
                $call_category_check = qq|
    if (formname == document.display) {
        if (!categoryCheck(formname)) {
            return;
        }
    }
|;
            }
        }
    } else {
        $crstype = &Apache::loncommon::course_type();
        if ($crstype eq 'Community') {
            ($pagetitle,$brcrumtitle) = ('Community Configuration','Community Configuration');
        } else {
            ($pagetitle,$brcrumtitle) = ('Course Configuration','Course Configuration');
        }
        $action = '/adm/courseprefs';
        if ($phase eq 'display') {
            if (grep(/^courseinfo$/,@actions)) {
                my %codedefaults;
                &Apache::lonnet::auto_instcode_defaults($env{'request.role.domain'},\%codedefaults,
                                                        \@code_order);
                if (@code_order) {
                   my $noinstcodestr = &mt('You indicated cloning based on category, but did not select any categories.');
                   &js_escape(\$noinstcodestr);
                   $instcode_check = <<"ENDSCRIPT";
    if (formname == document.display) {
        if (formname.cloners_instcode.length) {
            for (var j=0; j<formname.cloners_instcode.length; j++) {
                if (formname.cloners_instcode[j].checked) {
                    if (formname.cloners_instcode[j].value == 1) {
                        var codes;
                        if (document.getElementsByClassName) {
                            codes = document.getElementsByClassName('LC_cloners_instcodes');
                        } else {
                            codes = getElementsByClassName(document.body,'LC_cloners_instcodes');
                        }
                        if (codes.length) {
                            var gotcode = 0;
                            for (var i=0; i<codes.length; i++) {
                                if (codes[i].selectedIndex != 0) {
                                     gotcode = 1;
                                     break;
                                }
                            }
                            if (!gotcode) {
                                for (var k=0; k<formname.cloners_instcode.length; k++) {
                                    if (formname.cloners_instcode[k].value == 0) {
                                        formname.cloners_instcode[k].checked = true;
                                    }
                                }
                                toggleCloners(document.display.cloners_instcode);
                                alert('$noinstcodestr');
                                return false;
                            }
                        }
                    }
                }
            }
        }
    }

ENDSCRIPT
                }
            }
            if (($context eq 'course') && ((grep(/^linkprot$/,@actions)) ||
                (grep(/^ltitools$/,@actions)))) {
                my $allowed;
                my $home = &Apache::lonnet::homeserver($confname,$dom);
                unless ($home eq 'no_host') {
                    my @ids=&Apache::lonnet::current_machine_ids();
                    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
                }
                if ($allowed) {
                    if (grep((/^linkprot$/,@actions))) {
                        $linkprot_check = &ltisecret_js('linkprot',$dom,$values);
                    }
                    if (grep((/^ltitools$/,@actions))) {
                        $ltitools_check = &ltisecret_js('ltitools',$dom,$values);
                    }
                }
            }
        }
    }
    my $alert = &mt('You must select at least one functionality type to display.');
    &js_escape(\$alert);
    my $js = '
<script type="text/javascript">
// <![CDATA[

function changePage(formname,newphase) {
    formname.phase.value = newphase;
    numchecked = 0;
    if (formname == document.pickactions) {
        if (formname.actions.length > 0) {
            for (var i = 0; i<formname.actions.length; i++) {
                if (formname.actions[i].checked) {
                    numchecked ++;
                }
            }
        } else {
            if (formname.actions.checked) {
                numchecked ++;
            }
        }
        if (numchecked > 0) {
            formname.submit();
        } else {
            alert("'.$alert.'");
            return;
        }
    }
    '.$instcode_check.$call_category_check.$linkprot_check.$ltitools_check.'
    formname.submit();
}'."\n";
    if ($phase eq 'pickactions') {
	$js .= &Apache::lonhtmlcommon::color_picker();
        $js .=
            &Apache::lonhtmlcommon::set_form_elements({actions => 'checkbox'})."\n";
    } elsif ($phase eq 'display') {
	$js .= &Apache::lonhtmlcommon::color_picker();
        $js .= &color_pick_js()."\n";
        if ($context eq 'domain') {
            if (grep(/^(lti|ltitools)$/,@actions)) {
                 $js .= &ltisec_javascript($dom)."\n";
            }
        }
    }
    $js .= &Apache::loncommon::viewport_size_js().'

// ]]>
</script>
';
    if ($jscript) {
        $js .= "

$jscript

";
    }
    my $additem;
    if ($phase eq 'pickactions') {
        my %loaditems = (
                    'onload' => "setFormElements(document.pickactions);",
                        );
        $additem = {'add_entries' => \%loaditems,};
    } elsif ($phase eq 'display') {
        if ($context eq 'domain') {
            my $onload;
            if (grep(/^coursedefaults$/,@actions)) {
                $onload = "toggleDisplay(document.display,'cloneinstcode');".
                          "toggleDisplay(document.display,'credits');".
                          "toggleDisplay(document.display,'studentsubmission');";
            }
            if (grep(/^selfcreation$/,@actions)) {
                my $prefix = 'cancreate_emailverified';
                my $customclass = 'LC_selfcreate_email';
                my $classprefix = 'LC_canmodify_emailusername_';
                my $optionsprefix = 'LC_options_emailusername_';
                $onload .= "toggleRows(document.display,'cancreate_email','selfassign','$customclass','$classprefix','$optionsprefix');";
                my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
                my $hascustom;
                my ($emailrules,$emailruleorder) = &Apache::lonnet::inst_userrules($dom,'email');
                if (ref($emailrules) eq 'HASH') {
                    if (keys(%{$emailrules}) > 0) {
                        $hascustom = 'cancreate_emailrule';
                    }
                }
                my @posstypes;
                if (ref($types) eq 'ARRAY') {
                    @posstypes = @{$types};
                    push(@posstypes,'default');
                    foreach my $type (@posstypes) {
                        $onload .= "toggleEmailOptions(document.display,'cancreate_emailoptions','$hascustom',".
                                                               "'cancreate_emaildomain','$type');";
                    }
                } else {
                    $onload .= "toggleEmailOptions(document.display,'cancreate_emailoptions','$hascustom',".
                                                       "'cancreate_emaildomain','default');";
                }
            }
            if (grep(/^contacts$/,@actions)) {
                my $customclass = 'LC_helpdesk_override';
                my $optionsprefix = 'LC_options_helpdesk_';
                $onload .= "toggleHelpdeskRow(document.display,'overrides','$customclass','$optionsprefix');";
            }
            if (grep(/^lti$/,@actions)) {
                $onload .= "toggleLTI(document.display,'user','add');".
                           "toggleLTI(document.display,'crs','add');".
                           "toggleLTI(document.display,'sec','add');".
                           "toggleLTI(document.display,'lcauth','add');".
                           "toggleLTI(document.display,'lcmenu','add');".
                           "toggleLTI(document.display,'passback','add');".
                           "toggleLTI(document.display,'callback','add');";
                if (ref($values) eq 'HASH') {
                    if (ref($values->{'lti'}) eq 'HASH') {
                        my $numlti = scalar(keys(%{$values->{'lti'}}));
                        for (my $i=0; $i<$numlti; $i++) {
                            $onload .= "toggleLTI(document.display,'user','$i');".
                                       "toggleLTI(document.display,'crs','$i');".
                                       "toggleLTI(document.display,'sec','$i');".
                                       "toggleLTI(document.display,'lcauth','$i');".
                                       "toggleLTI(document.display,'lcmenu','$i');".
                                       "toggleLTI(document.display,'passback','$i');".
                                       "toggleLTI(document.display,'callback','$i');";
                        }
                    }
                }
                my %servers = &Apache::lonnet::get_servers($dom,'library');
                foreach my $server (keys(%servers)) {
                    $onload .= "togglePrivKey(document.display,'ltisec','$server');";
                }
                $onload .= "toggleLTIEncKey(document.display,'ltisec');";
            }
            if (grep(/^ltitools$/,@actions)) {
                $onload .= "toggleLTITools(document.display,'passback','add');".
                           "toggleLTITools(document.display,'roster','add');".
                           "toggleLTITools(document.display,'user','add');";
                if (ref($values) eq 'HASH') {
                    if (ref($values->{'ltitools'}) eq 'HASH') {
                        my $numltitools = scalar(keys(%{$values->{'ltitools'}}));
                        for (my $i=0; $i<$numltitools; $i++) {
                            $onload .= "toggleLTITools(document.display,'passback','$i');".
                                       "toggleLTITools(document.display,'roster','$i');".
                                       "toggleLTITools(document.display,'user','$i');";
                        }
                    }
                }
                my %servers = &Apache::lonnet::get_servers($dom,'library');
                foreach my $server (keys(%servers)) {
                    $onload .= "togglePrivKey(document.display,'toolsec','$server');";
                }
                $onload .= "toggleLTIEncKey(document.display,'toolsec');";
            }
            if (grep(/^wafproxy$/,@actions)) {
                $onload .= "toggleWAF();checkWAF();updateWAF();";
            }
            if (grep(/^proctoring$/,@actions)) {
                $onload .= "toggleProctoring(document.display,'proctorio');".
                           "toggleProctoring(document.display,'examity');";
            }
            if (grep(/^scantron$/,@actions)) {
                $onload .= "toggleScantron(document.display);";
            }
            if (grep(/^autoupdate$/,@actions)) {
                $onload .= "toggleLastActiveDays(document.display);";
            }
            if (grep(/^autoenroll$/,@actions)) {
                $onload .= "toggleFailsafe(document.display);";
            }
            if (grep(/^login$/,@actions)) {
                my %domservers = &Apache::lonnet::get_servers($dom);
                foreach my $server (sort(keys(%domservers))) {
                    $onload .= "toggleSamlOptions(document.display,'$server');";
                }
            }
            if ($onload) {
                my %loaditems = (
                                  'onload' => $onload,
                                );
                $additem = {'add_entries' => \%loaditems,};
            }
        } elsif ($context eq 'course') {
            my ($onload,$ishome,$crshome_checked);
            if (grep(/^courseinfo$/,@actions)) {
                if (@code_order) {
                    $onload = "courseSet('','load');toggleCloners(document.display.cloners_instcode);";
                }
            }
            if (grep(/^linkprot$/,@actions)) {
                if (ref($values) eq 'HASH') {
                    if (ref($values->{'linkprot'}) eq 'HASH') {
                        my $ltiauth;
                        if (exists($env{'course.'.$env{'request.course.id'}.'.internal.ltiauth'})) {
                            $ltiauth = $env{'course.'.$env{'request.course.id'}.'.internal.ltiauth'};
                        } else {
                            my %domdefs = &Apache::lonnet::get_domain_defaults($dom);
                            $ltiauth = $domdefs{'crsltiauth'};
                        }
                        unless ($crshome_checked) {
                            $ishome = &is_home();
                            $crshome_checked = 1;
                        }
                        my $posslti = scalar(keys(%{$values->{'linkprot'}}));
                        for (my $i=0; $i<=$posslti; $i++) {
                            my $num = $i;
                            if ($i == $posslti) {
                                $num = 'add';
                            }
                            if (ref($values->{'linkprot'}->{$i}) eq 'HASH') {
                                if ($values->{'linkprot'}->{$i}->{'usable'}) {
                                    $onload .= "toggleChgSecret(document.display,'$num','secret','linkprot');";
                                }
                            }
                            $onload .= "toggleLinkProtExtra(document.display,'returnurl','divurlparam','1','inline-block','$num');".
                                       "toggleLinkProtExtra(document.display,'passback','passbackparam','1','inline-block','$num');";
                            if ($ltiauth) {
                                $onload .= "toggleLinkProtExtra(document.display,'requser','optional','1','block','$num');".
                                           "toggleLinkProtExtra(document.display,'mapuser','userfield','other','inline-block','$num');";
                            }
                            if ($ishome) {
                                $onload .= "uncheckLinkProtMakeVis('linkprot','visible','$num');";
                            }
                        }
                    }
                }
            }
            if (grep(/^ltitools$/,@actions)) {
                if (ref($values) eq 'HASH') {
                    if (ref($values->{'ltitools'}) eq 'HASH') {
                        unless ($crshome_checked) {
                            $ishome = &is_home();
                            $crshome_checked = 1;
                        }
                        my $possltitools = scalar(keys(%{$values->{'ltitools'}}));
                        for (my $i=0; $i<=$possltitools; $i++) {
                            my $num = $i;
                            if ($i == $possltitools) {
                                $num = 'add';
                            }
                            if (ref($values->{'ltitools'}->{$i}) eq 'HASH') {
                                if ($values->{'ltitools'}->{$i}->{'usable'}) {
                                    $onload .= "toggleChgSecret(document.display,'$num','secret','ltitools');";
                                }
                            }
                            if ($ishome) {
                                $onload .= "uncheckLinkProtMakeVis('ltitools','visible','$num');";
                            }
                        }
                    }
                }
            }
            if (grep(/^appearance$/,@actions)) {
                $onload .= "toggleExtRes();";
            }
            if (grep(/^localization$/,@actions)) {
                $onload .= "toggleTimeZone();";
            }
            if (grep(/^grading$/,@actions)) {
                $onload .= 'toggleGrading(document.display);toggleHiddenTotalsSec(document.display);';
            }
            if ($onload) {
                my %loaditems = (
                                  'onload' => $onload,
                                );
                $additem = {'add_entries' => \%loaditems,};
            }
        }
    }
    $r->print(&Apache::loncommon::start_page($pagetitle,$js,$additem));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs($brcrumtitle));
    $r->print('
<form name="parmform" action="">
<input type="hidden" name="pres_marker" />
<input type="hidden" name="pres_type" />
<input type="hidden" name="pres_value" />
</form>
');
    if ($container) {
       &Apache::lonparmset::startSettingsScreen($r,$container,$crstype);
    }
    $r->print('<form method="post" name="'.$phase.'" action="'.$action.'"'.
              ' enctype="multipart/form-data">');
    return;
}

sub ltisecret_js {
    my ($name,$dom,$values) = @_;
    return unless (ref($values) eq 'HASH');
    my $js;
    if (($name eq 'linkprot') || ($name eq 'ltitools')) {
        my (@changeable,@settable);
        if (ref($values->{$name}) eq 'HASH') {
            if (keys(%{$values->{$name}})) {
                my @current = sort { $a <=> $b } keys(%{$values->{$name}});
                if (@current) {
                    for (my $i=0; $i<@current; $i++) {
                        my $num = $current[$i];
                        if (ref($values->{$name}->{$num}) eq 'HASH') {
                            if ($values->{$name}->{$num}->{'usable'}) {
                                push(@changeable,$i);
                            } else {
                                push(@settable,$i);
                            }
                        }
                    }
                }
            }
        }
        my ($numrules,$intargjs);
$js .= <<ENDJS;

var ${name}radio = '';
var ${name}secretinput = '';
var ${name}posscheck = '';

ENDJS
        if (@changeable) {
            foreach my $num (@changeable) {
                ($numrules,$intargjs) =
                    &Apache::loncommon::passwd_validation_js($name.'secretinput',$dom,$name,$num);
                $js .= <<"ENDJS";
${name}posscheck = '';
${name}radio = document.display.elements['${name}_changesecret_$num'];
if (${name}radio.length) {
    for (var i=0; i<${name}radio.length; i++) {
        if (${name}radio[i].checked) {
            if (${name}radio[i].value == 1) {
                ${name}posscheck = 1;
            }
        }
    }
}

ENDJS
                if ($numrules) {
                    $js .= <<"ENDJS";
if (${name}posscheck) {
    ${name}secretinput = document.display.elements['${name}_secret_$num'].value;
    $intargjs
}

ENDJS
                }
                $js .= <<"ENDJS";
if (${name}posscheck) {
    uncheckLinkProtMakeVis('$name','visible','$num');
    document.display.elements['${name}_secret_$num'].type = 'password';
}

ENDJS
            }
        }
        if (@settable) {
            foreach my $num (@settable) {
                ($numrules,$intargjs) =
                    &Apache::loncommon::passwd_validation_js($name.'secretinput',$dom,$name,$num);
                if ($numrules) {
                    $js .= <<ENDJS;
${name}secretinput = document.display.elements['${name}_secret_$num'].value;
$intargjs

ENDJS
                }
                $js .= <<ENDJS;
uncheckLinkProtMakeVis('$name','visible','$num');
document.display.elements['${name}_secret_$num'].type = 'password';

ENDJS
            }
        }
        ($numrules,$intargjs) =
            &Apache::loncommon::passwd_validation_js($name.'secretinput',$dom,$name,'add');
        if ($numrules) {
            $js .= <<ENDJS
${name}secretinput = document.display.elements['${name}_secret_add'].value;
if (document.display.elements['${name}_add'].checked) {
    $intargjs
}

ENDJS
        }
        $js .= <<ENDJS;
uncheckLinkProtMakeVis('$name','visible','add');
document.display.elements['${name}_secret_add'].type = 'password';

ENDJS
    }
    return $js;
}

sub is_home {
    my $ishome;
    my $chome = $env{'course.'.$env{'request.course.id'}.'.home'};
    unless (($chome eq 'no_host') || ($chome eq '')) {
        my @ids=&Apache::lonnet::current_machine_ids();
        foreach my $id (@ids) {
            if ($id eq $chome) {
                $ishome=1;
                last;
            }
        }
    }
    return $ishome;
}

sub print_footer {
    my ($r,$phase,$newphase,$button_text,$actions,$container,$parm_permission) = @_;
    $button_text = &mt($button_text);
    $r->print('<input type="hidden" name="phase" value="" />');
    if (defined($env{'form.origin'})) {
        $r->print('<input type="hidden" name="origin" value="'.$env{'form.origin'}.'" />'."\n");
    }
    if (($phase eq 'display') || ($phase eq 'process')) {
        if (ref($actions) eq 'ARRAY') {
            foreach my $item (@{$actions}) {
                $r->print('<input type="hidden" name="actions" value="'.$item.'" />'."\n");
            }
        }
    }
    my $dest='"javascript:changePage(document.'.$phase.','."'$newphase'".')"';
    if ($phase eq 'process') {
        $r->print(
            &Apache::lonhtmlcommon::actionbox(
                ['<a href='.$dest.'>'.$button_text.'</a>']));
    } else {
        my $onclick;
        if ($phase eq 'display') {
            $onclick = '"javascript:changePage(document.'.$phase.','."'$newphase'".')"';
        } else {
            $onclick = '"javascript:changePage(document.'.$phase.','."'$newphase'".')"';
        }
        my $showbutton = 1;
        if (ref($parm_permission) eq 'HASH') {
            unless (($parm_permission->{'process'}) || ($newphase eq 'display')) {
                $showbutton = 0;
            }
        }
        if ($showbutton) {
            $r->print('<p><input type="button" name="store" value="'.
                      $button_text.'" onclick='.$onclick.' /></p>');
        }
    }
    if ($phase eq 'process') {
        $r->print('</form>');
        if ($container) {
           &Apache::lonparmset::endSettingsScreen($r);
        }
        $r->print(&Apache::loncommon::end_page());
    }
    return;
}

sub make_changes {
    my ($r,$dom,$phase,$context,$prefs_order,$prefs,$values,$confname,$roles,
        $allitems,$container,$parm_permission) = @_;
    my %brcrumtext = &get_crumb_text();
    my @actions = &Apache::loncommon::get_env_multiple('form.actions');
    my ($numchanged,%changes,%disallowed);
    &Apache::lonhtmlcommon::add_breadcrumb
      ({href=>"javascript:changePage(document.$phase,'display')",
        text=>$brcrumtext{$context}},
       {href=>"javascript:changePage(document.$phase,'$phase')",
        text=>"Updated"});
    &print_header($r,$phase,$context,undef,$container);
    my ($crstype,%lastact,$errors);
    if ($context eq 'course') {
        $crstype = &Apache::loncommon::course_type();
    }
    if ((ref($prefs_order) eq 'ARRAY') && (ref($prefs) eq 'HASH') && 
        (ref($prefs) eq 'HASH')) {
        foreach my $item (@{$prefs_order}) {
            if (grep(/^\Q$item\E$/,@actions)) {
                if ($context eq 'domain') {
                    $r->print('<h3>'.&mt($prefs->{$item}{'text'}).'</h3>'.
                              &Apache::domainprefs::process_changes($r,$dom,
                                          $confname,$item,$roles,$values,\%lastact));
                } else {
                    $changes{$item} = {};
                    $errors =
                        &Apache::courseprefs::process_changes($dom,$confname,$item,$values,
                                                              $prefs->{$item},$changes{$item},
                                                              $allitems,\%disallowed,$crstype,
                                                              \%lastact);
                    if (keys(%{$changes{$item}}) > 0) {
                        $numchanged ++;
                    }
                }
            }
        }
    }
    if ($context eq 'course') {
        if ($numchanged) {
            my $message = &Apache::courseprefs::store_changes($dom,$confname,$prefs_order,\@actions,
                                                          $prefs,$values,\%changes,$crstype);
            $r->print(&Apache::loncommon::confirmwrapper($message));
        } else {
            if ($crstype eq 'Community') {
                $r->print(&Apache::loncommon::confirmwrapper(&mt("No changes made to community configuration.")));
            } else {
                $r->print(&Apache::loncommon::confirmwrapper(&mt("No changes made to course configuration.")));
            }
        }
        if (keys(%disallowed) > 0) {
            $r->print('<p>');
            foreach my $item ('cloners','rolenames','feedback','discussion','localization') {
                if (ref($disallowed{$item}) eq 'HASH') {
                    if (keys(%{$disallowed{$item}}) > 0) {
                        $r->print(&Apache::courseprefs::display_disallowed($item,$disallowed{$item},
                                                                           $prefs,$crstype));
                    }
                }
            }
            $r->print('</p>');
        }
        if ($errors) {
            $r->print('<p>'.$errors.'</p>');
        }
    }
    $r->print('<p>');
    my $footer_text = 'Back to configuration display';
    if ($context eq 'course') {
        $footer_text = 'Back to display/edit settings'; 
    }
    &print_footer($r,$phase,'display',$footer_text,\@actions,$container,$parm_permission);
    $r->print('</p>');
    return \%lastact;
}

sub display_settings {
    my ($r,$dom,$phase,$context,$prefs_order,$prefs,$values,$confname,$jscript,
        $allitems,$crstype,$container,$parm_permission) = @_;
    my %brcrumtext = &get_crumb_text();
    my @actions = &Apache::loncommon::get_env_multiple('form.actions');
    &Apache::lonhtmlcommon::add_breadcrumb
        ({href=>"javascript:changePage(document.$phase,'display')",
          text=>"Display/Edit Settings"});
    my $instcode;
    if (ref($values) eq 'HASH') {
        $instcode = $values->{'internal.coursecode'};
    }
    &print_header($r,$phase,$context,$jscript,$container,$instcode,$dom,$confname,$values);
    my $divwidth = 900;
    if ((ref($prefs_order) eq 'ARRAY') && (ref($prefs) eq 'HASH') && (ref($values) eq 'HASH')) { 
        if (@actions > 0) {
            my $rowsum = 0;
            my (%output,%rowtotal,@items,$got_check_uncheck,$got_change_secret);
            foreach my $item (@{$prefs_order}) {
                if (grep(/^\Q$item\E$/,@actions)) {
                    push(@items,$item);
                    if ($context eq 'domain') {
                        my $settings;
                        if (ref($values) eq 'HASH') {
                            $settings = $values->{$item};
                        }
                        if (($item eq 'usersessions') || ($item eq 'ssl')) {
                            unless ($got_check_uncheck) {
                                $r->print('<script type="text/javascript">'."\n".
                                          '// <![CDATA['."\n".
                                          &Apache::loncommon::check_uncheck_jscript()."\n".
                                          '// ]]>'."\n".
                                          '</script>'."\n");
                                $got_check_uncheck = 1;
                            }
                        } elsif ($item eq 'selfcreation') {
                            if (ref($values) eq 'HASH') {
                                $settings = $values->{'usercreation'};
                            }
                        } elsif ($item eq 'defaults') {
                            if (ref($values->{'inststatus'}) eq 'HASH') {
                                if (ref($values->{'defaults'}) eq 'HASH') {
                                    $settings = {%{$values->{'inststatus'}},%{$values->{'defaults'}}};
                                } else {
                                    $settings = $values->{'inststatus'};
                                }
                            } else {
                                my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
                                my $inststatus = {
                                                   inststatustypes => $usertypes,
                                                   inststatusorder => $types,
                                                   inststatusguest => [],
                                                 };
                                if (ref($values->{defaults}) eq 'HASH') {
                                    $settings = {%{$inststatus},%{$values->{'defaults'}}};
                                } else {
                                    $settings = $inststatus;
                                }
                            }
                        } elsif (($item eq 'lti') || ($item eq 'ltitools')) {
                            unless ($got_change_secret) {
                                $r->print('<script type="text/javascript">'."\n".
                                          '// <![CDATA['."\n".
                                          &change_secret_js()."\n".
                                          '// ]]>'."\n".
                                          '</script>'."\n");
                                $got_change_secret = 1;
                            }
                            if ($item eq 'lti') {
                                if (ref($values->{'ltisec'}) eq 'HASH') {
                                    if (ref($values->{'lti'}) eq 'HASH') {
                                        $settings = {%{$values->{'lti'}},%{$values->{'ltisec'}}};
                                    } else {
                                        $settings = $values->{'ltisec'};
                                    }
                                } elsif (ref($values->{'lti'}) eq 'HASH') {
                                    $settings = $values->{'lti'};
                                }
                            } elsif ($item eq 'ltitools') {
                                if (ref($values->{'toolsec'}) eq 'HASH') {
                                    if (ref($values->{'ltitools'}) eq 'HASH') {
                                        $settings = {%{$values->{'ltitools'}},%{$values->{'toolsec'}}};
                                    } else {
                                        $settings = $values->{'toolsec'};
                                    }
                                }
                            }
                        }
                        ($output{$item},$rowtotal{$item}) =
                            &Apache::domainprefs::print_config_box($r,$dom,$confname,
                                $phase,$item,$prefs->{$item},$settings);
                    } else {
                        unless ($got_change_secret) {
                            $r->print('<script type="text/javascript">'."\n".
                                      '// <![CDATA['."\n".
                                      &change_secret_js()."\n".
                                      '// ]]>'."\n".
                                      '</script>'."\n");
                            $got_change_secret = 1;
                        }
                        ($output{$item},$rowtotal{$item}) =
                            &Apache::courseprefs::print_config_box($r,$dom,$confname,$phase,
                                $item,$prefs->{$item},$values,$allitems,$crstype,$parm_permission);
                    }
                    $rowsum += $rowtotal{$item};
                }
            }
            $r->print('<div id="prefs" style="max-width:'.$divwidth.'px;margin: 10px auto 10px auto;">');
            for (my $i=0; $i<@items; $i++) {
                $r->print($output{$items[$i]});
            }
            $r->print('</div>');
            $r->print(&print_footer($r,$phase,'process','Save Changes',\@actions,$container,$parm_permission));
        } else {
            $r->print('<input type="hidden" name="phase" value="" />'.
                      '<span class="LC_error">'.&mt('No settings chosen').
                      '</span>');
        }
        $r->print('</form>');
    }
    if ($container) {
        &Apache::lonparmset::endSettingsScreen($r);
    }
    $r->print(&Apache::loncommon::end_page());
    return;
}

sub display_choices {
    my ($r,$phase,$context,$prefs_order,$prefs,$container,$parm_permission) = @_;
    if ($phase eq '') {
        $phase = 'pickactions';
    }
    my %helphash;
    &print_header($r,$phase,$context,undef,$container);
    $r->print('<script type="text/javascript">'."\n".
              '// <![CDATA['."\n".
              &Apache::loncommon::check_uncheck_jscript()."\n".
              '// ]]>'."\n".
              '</script>'."\n");
    my $heading = &mt('Settings to display/modify');
    if (ref($parm_permission) eq 'HASH') {
        unless ($parm_permission->{'process'}) {
            $heading = &mt('Settings to display');
        }
    }
    $r->print('<h3>'.$heading.'</h3>'.
              '<div><input type="button" value="'.&mt('check all').'" '.
              'onclick="javascript:checkAll(document.pickactions.actions)"'.
              ' />'.('&nbsp;'x2).
              '<input type="button" value="'.&mt('uncheck all').'" '.
              'onclick="javascript:uncheckAll(document.pickactions.actions)" />'.
              "\n".
              '</div><div class="LC_left_float">');
    my ($numitems,$maxincol,$firstthird,$secondthird,$seconddiv,$thirddiv,$count);
    if (ref($prefs_order) eq 'ARRAY') {
        $numitems = @{$prefs_order};
    }
    my $numcols = 3;
    $maxincol = int($numitems/$numcols);
    if ($numitems%$numcols) {
        $maxincol ++;
    }
    $firstthird = $maxincol;
    $secondthird = $firstthird + $maxincol;
    $count = 0;
    if ((ref($prefs_order) eq 'ARRAY') && (ref($prefs) eq 'HASH')) {
        foreach my $item (@{$prefs_order}) {
            $r->print('<h4>'.
                      &Apache::loncommon::help_open_topic($prefs->{$item}->{'help'}).
                      '<label><input type="checkbox" name="actions" value="'.$item.
                      '" />&nbsp;'.&mt($prefs->{$item}->{'text'}).'</label></h4>');
            $count ++;
            if ((!$seconddiv) && ($count >= $firstthird)) {
                $r->print('</div>'."\n".'<div class="LC_left_float">'."\n");
                $seconddiv = 1;
            }
            if ((!$thirddiv) && ($count >= $secondthird)) {
                $r->print('</div>'."\n".'<div class="LC_left_float">'."\n");
                $thirddiv = 1;
            }
        }
    }
    $r->print('</div><div style="padding:0;clear:both;margin:0;border:0"></div>');
    $r->print(&print_footer($r,$phase,'display','Display',undef,$container,$parm_permission));
    $r->print('</form>');
    if ($container) {
        &Apache::lonparmset::endSettingsScreen($r);
    }
    $r->print(&Apache::loncommon::end_page());
    return;
}

sub color_pick_js {
    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
    my $output = <<"ENDCOL";

    $pjump_def

    function psub() {
        modalWindow.close();
        if (document.parmform.pres_marker.value!='') {
            if (document.parmform.pres_type.value!='') {
                eval('document.display.'+
                     document.parmform.pres_marker.value+
                     '.value=document.parmform.pres_value.value;');
            }
        } else {
            document.parmform.pres_value.value='';
            document.parmform.pres_marker.value='';
        }
    }

    function get_id (span_id) {
        if (document.getElementById) {
            return document.getElementById(span_id);
        }
        if (document.all) {
            return document.all[span_id];
        }
        return false;
    }

    function colchg_span (span_id_str,new_color_item) {
        var span_ref = get_id(span_id_str);
        if (span_ref.style) { span_ref = span_ref.style; }
        span_ref.background = new_color_item.value;
        span_ref.backgroundColor = new_color_item.value;
        span_ref.bgColor = new_color_item.value;
    }

ENDCOL
    return $output;
}

sub ltisec_javascript {
    my ($dom) = @_;
    my %servers = &Apache::lonnet::get_servers($dom,'library');
    my $primary = &Apache::lonnet::domain($dom,'primary');
    my $course_servers = "'".join("','",keys(%servers))."'";
    my $output = <<"ENDJS";

function toggleLTIEncKey(form,context) {
    var shownhosts = new Array();
    var hiddenhosts = new Array();
    var forcourse = new Array($course_servers);
    var fromdomain = '$primary';
    var crsradio;
    if (context == 'ltisec') {
        crsradio = form.elements['ltisec_crslinkprot'];
    } else {
        crsradio = form.elements['toolsec_crs'];
    }
    if (crsradio.length) {
        for (var i=0; i<crsradio.length; i++) {
            if (crsradio[i].checked) {
                if (crsradio[i].value == 1) {
                    if (forcourse.length > 0) {
                        for (var j=0; j<forcourse.length; j++) {
                            if (!shownhosts.includes(forcourse[j])) {
                                shownhosts.push(forcourse[j]);
                            }
                        }
                    }
                } else {
                    if (forcourse.length > 0) {
                        for (var j=0; j<forcourse.length; j++) {
                            if (!hiddenhosts.includes(forcourse[j])) {
                                hiddenhosts.push(forcourse[j]);
                            }
                        }
                    }
                }
            }
        }
    }
    var domradio;
    if (context == 'ltisec') {
        domradio = form.elements['ltisec_domlinkprot'];
    } else {
        domradio = form.elements['toolsec_dom'];
    }
    if (domradio.length) {
        for (var i=0; i<domradio.length; i++) {
            if (domradio[i].checked) {
                if (domradio[i].value == 1) {
                    if (!shownhosts.includes(fromdomain)) {
                        shownhosts.push(fromdomain);
                    }
                } else {
                    if (!hiddenhosts.includes(fromdomain)) {
                        hiddenhosts.push(fromdomain);
                    }
                }
            }
        }
    }
    if (context == 'ltisec') {
        var consumersradio = form.elements['ltisec_consumers'];
        if (consumersradio.length) {
            for (var i=0; i<consumersradio.length; i++) {
                if (consumersradio[i].checked) {
                    if (consumersradio[i].value == 1) {
                        if (!shownhosts.includes(fromdomain)) {
                            shownhosts.push(fromdomain);
                        }
                    } else {
                        if (!hiddenhosts.includes(fromdomain)) {
                            hiddenhosts.push(fromdomain);
                        }
                    }
                }
            }
        }
    }
    if (shownhosts.length > 0) {
        for (var i=0; i<shownhosts.length; i++) {
            if (document.getElementById(context+'_info_'+shownhosts[i])) {
                document.getElementById(context+'_info_'+shownhosts[i]).style.display = 'block';
            }
        }
        if (document.getElementById(context+'_noprivkey')) {
            document.getElementById(context+'_noprivkey').style.display = 'none';
        }
    } else {
        if (document.getElementById(context+'_noprivkey')) {
            document.getElementById(context+'_noprivkey').style.display = 'inline-block';
        }
    }
    if (hiddenhosts.length > 0) {
        for (var i=0; i<hiddenhosts.length; i++) {
            if (!shownhosts.includes(hiddenhosts[i])) {
                if (document.getElementById(context+'_info_'+hiddenhosts[i])) {
                    document.getElementById(context+'_info_'+hiddenhosts[i]).style.display = 'none';
                }
            }
        }
    }
    return;
}

function togglePrivKey(form,context,hostid) {
    var radioname = '';
    var currdivid = '';
    var newdivid = '';
    if ((document.getElementById(context+'_divcurrprivkey_'+hostid)) &&
        (document.getElementById(context+'_divchgprivkey_'+hostid))) {
        currdivid = document.getElementById(context+'_divcurrprivkey_'+hostid);
        newdivid = document.getElementById(context+'_divchgprivkey_'+hostid);
        radioname = form.elements[context+'_changeprivkey_'+hostid];
        if (radioname) {
            if (radioname.length > 0) {
                var setvis;
                for (var i=0; i<radioname.length; i++) {
                    if (radioname[i].checked == true) {
                        if (radioname[i].value == 1) {
                            newdivid.style.display = 'inline-block';
                            currdivid.style.display = 'none';
                            setvis = 1;
                        }
                        break;
                    }
                }
                if (!setvis) {
                    newdivid.style.display = 'none';
                    currdivid.style.display = 'inline-block';
                }
            }
        }
    }
    return;
}

ENDJS

}

sub ltitools_javascript {
    my ($settings) = @_;
    my $togglejs = &ltitools_toggle_js();
    unless (ref($settings) eq 'HASH') {
        return $togglejs;
    }
    my (%ordered,$total,%jstext);
    $total = 0;
    foreach my $item (keys(%{$settings})) {
        if (ref($settings->{$item}) eq 'HASH') {
            my $num = $settings->{$item}{'order'};
            $ordered{$num} = $item;
        }
    }
    $total = scalar(keys(%{$settings}));
    my @jsarray = ();
    foreach my $item (sort {$a <=> $b } (keys(%ordered))) {
        push(@jsarray,$ordered{$item});
    }
    my $jstext = '    var ltitools = Array('."'".join("','",@jsarray)."'".');'."\n";
    return <<"ENDSCRIPT";
<script type="text/javascript">
// <![CDATA[
function reorderLTITools(form,item) {
    var changedVal;
$jstext
    var newpos = 'ltitools_add_pos';
    var maxh = 1 + $total;
    var current = new Array;
    var newitemVal = form.elements[newpos].options[form.elements[newpos].selectedIndex].value;
    if (item == newpos) {
        changedVal = newitemVal;
    } else {
        changedVal = form.elements[item].options[form.elements[item].selectedIndex].value;
        current[newitemVal] = newpos;
    }
    for (var i=0; i<ltitools.length; i++) {
        var elementName = 'ltitools_'+ltitools[i];
        if (elementName != item) {
            if (form.elements[elementName]) {
                var currVal = form.elements[elementName].options[form.elements[elementName].selectedIndex].value;
                current[currVal] = elementName;
            }
        }
    }
    var oldVal;
    for (var j=0; j<maxh; j++) {
        if (current[j] == undefined) {
            oldVal = j;
        }
    }
    if (oldVal < changedVal) {
        for (var k=oldVal+1; k<=changedVal ; k++) {
           var elementName = current[k];
           form.elements[elementName].selectedIndex = form.elements[elementName].selectedIndex - 1;
        }
    } else {
        for (var k=changedVal; k<oldVal; k++) {
            var elementName = current[k];
            form.elements[elementName].selectedIndex = form.elements[elementName].selectedIndex + 1;
        }
    }
    return;
}

// ]]>
</script>

$togglejs

ENDSCRIPT
}

sub ltitools_toggle_js {
    return <<"ENDSCRIPT";
<script type="text/javascript">
// <![CDATA[

function toggleLTITools(form,setting,item) {
    var radioname = '';
    var divid = '';
    if ((setting == 'passback') || (setting == 'roster')) {
        radioname = 'ltitools_'+setting+'_'+item;
        divid = 'ltitools_'+setting+'time_'+item;
        var num = form.elements[radioname].length;
        if (num) {
            var setvis = '';
            for (var i=0; i<num; i++) {
                if (form.elements[radioname][i].checked) {
                    if (form.elements[radioname][i].value == '1') {
                        if (document.getElementById(divid)) {
                            document.getElementById(divid).style.display = 'inline-block';
                        }
                        setvis = 1;
                    }
                    break;
                }
            }
        }
        if (!setvis) {
            if (document.getElementById(divid)) {
                document.getElementById(divid).style.display = 'none';
            }
        }
    }
    if (setting == 'user') {
        divid = 'ltitools_'+setting+'_div_'+item;
        var checkid = 'ltitools_'+setting+'_field_'+item;
        if (document.getElementById(divid)) {
            if (document.getElementById(checkid)) {
                if (document.getElementById(checkid).checked) {
                    document.getElementById(divid).style.display = 'inline-block';
                } else {
                    document.getElementById(divid).style.display = 'none';
                }
            }
        }
    }
    return;
}
// ]]>
</script>

ENDSCRIPT
}

sub get_crumb_text {
    my %brcrumbtext = (
                       domain => 'Domain Settings',
                       course => 'Display/Edit Settings',
                     );
    return %brcrumbtext;
}

sub publishlogo {
    my ($r,$action,$formname,$dom,$confname,$subdir,$thumbwidth,$thumbheight,
        $savefileas,$modified) = @_;
    my ($output,$fname,$logourl,$madethumb);
    if ($action eq 'upload') {
        $fname=$env{'form.'.$formname.'.filename'};
        chop($env{'form.'.$formname});
    } else {
        ($fname) = ($formname =~ /([^\/]+)$/);
    }
    if ($savefileas ne '') {
        $fname = $savefileas;
    }
    $fname=&Apache::lonnet::clean_filename($fname);
# See if there is anything left
    unless ($fname) { return ('error: no uploaded file'); }
    $fname="$subdir/$fname";
    my $docroot=$r->dir_config('lonDocRoot');
    my $filepath="$docroot/priv";
    my $relpath = "$dom/$confname";
    my ($fnamepath,$file,$fetchthumb);
    $file=$fname;
    if ($fname=~m|/|) {
        ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
    }
    my @parts=split(/\//,"$filepath/$relpath/$fnamepath");
    my $count;
    for ($count=5;$count<=$#parts;$count++) {
        $filepath.="/$parts[$count]";
        if ((-e $filepath)!=1) {
            mkdir($filepath,02770);
        }
    }
    # Check for bad extension and disallow upload
    if ($file=~/\.(\w+)$/ &&
        (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
        $output =
            &mt('Invalid file extension ([_1]) - reserved for internal use.',$1);
    } elsif ($file=~/\.(\w+)$/ &&
        !defined(&Apache::loncommon::fileembstyle($1))) {
        $output = &mt('Unrecognized file extension ([_1]) - rename the file with a proper extension and re-upload.',$1);
    } elsif ($file=~/\.(\d+)\.(\w+)$/) {
        $output = &mt('Filename not allowed - rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2);
    } elsif (-d "$filepath/$file") {
        $output = &mt('Filename is a directory name - rename the file and re-upload');
    } else {
        my $source = $filepath.'/'.$file;
        my $logfile;
        if (!open($logfile,">>",$source.'.log')) {
            return (&mt('No write permission to Authoring Space'));
        }
        print $logfile
"\n================= Publish ".localtime()." ================\n".
$env{'user.name'}.':'.$env{'user.domain'}."\n";
# Save the file
        if (!open(FH,">",$source)) {
            &Apache::lonnet::logthis('Failed to create '.$source);
            return (&mt('Failed to create file'));
        }
        if ($action eq 'upload') {
            if (!print FH ($env{'form.'.$formname})) {
                &Apache::lonnet::logthis('Failed to write to '.$source);
                return (&mt('Failed to write file'));
            }
        } else {
            my $original = &Apache::lonnet::filelocation('',$formname);
            if(!copy($original,$source)) {
                &Apache::lonnet::logthis('Failed to copy '.$original.' to '.$source);
                return (&mt('Failed to write file'));
            }
        }
        close(FH);
        chmod(0660, $source); # Permissions to rw-rw---.

        my $targetdir=$docroot.'/res/'.$dom.'/'.$confname .'/'.$fnamepath;
        my $copyfile=$targetdir.'/'.$file;

        my @parts=split(/\//,$targetdir);
        my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
        for (my $count=5;$count<=$#parts;$count++) {
            $path.="/$parts[$count]";
            if (!-e $path) {
                print $logfile "\nCreating directory ".$path;
                mkdir($path,02770);
            }
        }
        my $versionresult;
        if (-e $copyfile) {
            $versionresult = &logo_versioning($targetdir,$file,$logfile);
        } else {
            $versionresult = 'ok';
        }
        if ($versionresult eq 'ok') {
            if (copy($source,$copyfile)) {
                print $logfile "\nCopied original source to ".$copyfile."\n";
                $output = 'ok';
                $logourl = '/res/'.$dom.'/'.$confname.'/'.$fname;
                if (ref($modified) eq 'ARRAY') {
                    push(@{$modified},[$copyfile,$source]);
                }
                my $metaoutput =
                    &write_metadata($dom,$confname,$formname,$targetdir,$file,$logfile);
            } else {
                print $logfile "\nUnable to write ".$copyfile.':'.$!."\n";
                $output = &mt('Failed to copy file to RES space').", $!";
            }
            if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
                my $inputfile = $filepath.'/'.$file;
                my $outfile = $filepath.'/'.'tn-'.$file;
                my ($fullwidth,$fullheight) = &Apache::lonnet::check_dimensions($inputfile);
                if ($fullwidth ne '' && $fullheight ne '') {
                    if ($fullwidth > $thumbwidth && $fullheight > $thumbheight) {
                        my $thumbsize = $thumbwidth.'x'.$thumbheight;
                        my @args = ('convert','-sample',$thumbsize,$inputfile,$outfile);
                        system({$args[0]} @args);
                        chmod(0660, $filepath.'/tn-'.$file);
                        if (-e $outfile) {
                            my $copyfile=$targetdir.'/tn-'.$file;
                            if (copy($outfile,$copyfile)) {
                                print $logfile "\nCopied source to ".$copyfile."\n";
                                my $thumb_metaoutput =
                                    &write_metadata($dom,$confname,$formname,
                                                    $targetdir,'tn-'.$file,$logfile);
                                if (ref($modified) eq 'ARRAY') {
                                    push(@{$modified},[$copyfile,$outfile]);
                                }
                                $madethumb = 1;
                            } else {
                                print $logfile "\nUnable to write ".$copyfile.
                                               ':'.$!."\n";
                            }
                        }
                    }
                }
            }
        } else {
            $output = $versionresult;
        }
    }
    return ($output,$logourl,$madethumb);
}

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

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

sub change_secret_js {
    return <<"ENDSCRIPT";
function toggleChgSecret(form,num,item,name) {
    var radioname = '';
    var currdivid = '';
    var newdivid = '';
    if ((document.getElementById(name+'_divcurr'+item+'_'+num)) &&
        (document.getElementById(name+'_divchg'+item+'_'+num))) {
        currdivid = document.getElementById(name+'_divcurr'+item+'_'+num);
        newdivid = document.getElementById(name+'_divchg'+item+'_'+num);
        radioname = form.elements[name+'_change'+item+'_'+num];
        if (radioname) {
            if (radioname.length > 0) {
                var setvis;
                for (var i=0; i<radioname.length; i++) {
                    if (radioname[i].checked == true) {
                        if (radioname[i].value == 1) {
                            newdivid.style.display = 'inline-block';
                            currdivid.style.display = 'none';
                            setvis = 1;
                        }
                        break;
                    }
                }
                if (!setvis) {
                    newdivid.style.display = 'none';
                    currdivid.style.display = 'inline-block';
                }
            }
        }
    }
    return;
}

function uncheckLinkProtMakeVis(name,item,num) {
    if (document.getElementById(name+'_'+item+'_'+num)) {
        var currtype = document.getElementById(name+'_'+item+'_'+num).type;
        if (currtype.toLowerCase() == 'checkbox') {
            document.getElementById(name+'_'+item+'_'+num).checked = false;
        }
    }
    return;
}
ENDSCRIPT

}

1;