# The LearningOnline Network
# Documents
#
# $Id: londocs.pm,v 1.453 2011/05/27 19:02:16 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::londocs;

use strict;
use Apache::Constants qw(:common :http);
use Apache::imsexport;
use Apache::lonnet;
use Apache::loncommon;
use Apache::lonhtmlcommon;
use LONCAPA::map();
use Apache::lonratedt();
use Apache::lonxml;
use Apache::lonclonecourse;
use Apache::lonnavmaps;
use HTML::Entities;
use GDBM_File;
use Apache::lonlocal;
use Cwd;
use LONCAPA qw(:DEFAULT :match);

my $iconpath;

my %hash;

my $hashtied;
my %alreadyseen=();

my $hadchanges;


my %help=();


sub mapread {
    my ($coursenum,$coursedom,$map)=@_;
    return
      &LONCAPA::map::mapread('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
			     $map);
}

sub storemap {
    my ($coursenum,$coursedom,$map)=@_;
    my ($outtext,$errtext)=
      &LONCAPA::map::storemap('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
			      $map,1);
    if ($errtext) { return ($errtext,2); }

    $hadchanges=1;
    return ($errtext,0);
}



sub authorhosts {
    my %outhash=();
    my $home=0;
    my $other=0;
    foreach my $key (keys(%env)) {
	if ($key=~/^user\.role\.(au|ca)\.(.+)$/) {
	    my $role=$1;
	    my $realm=$2;
	    my ($start,$end)=split(/\./,$env{$key});
	    if (($start) && ($start>time)) { next; }
	    if (($end) && (time>$end)) { next; }
	    my ($ca,$cd);
	    if ($1 eq 'au') {
		$ca=$env{'user.name'};
		$cd=$env{'user.domain'};
	    } else {
		($cd,$ca)=($realm=~/^\/($match_domain)\/($match_username)$/);
	    }
	    my $allowed=0;
	    my $myhome=&Apache::lonnet::homeserver($ca,$cd);
	    my @ids=&Apache::lonnet::current_machine_ids();
	    foreach my $id (@ids) { if ($id eq $myhome) { $allowed=1; } }
	    if ($allowed) {
		$home++;
		$outhash{'home_'.$ca.'@'.$cd}=1;
	    } else {
		$outhash{'otherhome_'.$ca.'@'.$cd}=$myhome;
		$other++;
	    }
	}
    }
    return ($home,$other,%outhash);
}


sub dumpbutton {
    my ($home,$other,%outhash)=&authorhosts();
    my $crstype = &Apache::loncommon::course_type();
    if ($home+$other==0) { return ''; }
    if ($home) {
        my $link =
            "<a class='LC_menubuttons_link' href='javascript:injectData(document.courseverify, \"dummy\", \"dumpcourse\", \""
           .&mt('Dump '.$crstype.' Documents to Construction Space')
           ."\")'>"
           .&mt('Dump '.$crstype.' Documents to Construction Space')
           .'</a>';
        return
            $link.' '
           .&Apache::loncommon::help_open_topic('Docs_Dump_Course_Docs')
           .'<br />';
    } else {
        return
            &mt('Dump '.$crstype.' Documents to Construction Space: available on other servers');
    }
}

sub clean {
    my ($title)=@_;
    $title=~s/[^\w\/\!\$\%\^\*\-\_\=\+\;\:\,\\\|\`\~]+/\_/gs;
    return $title;
}



sub dumpcourse {
    my ($r) = @_;
    my $crstype = &Apache::loncommon::course_type();
    $r->print(&Apache::loncommon::start_page('Dump '.$crstype.' Documents to Construction Space').
	      '<form name="dumpdoc" action="" method="post">');
    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Dump '.$crstype.' Documents to Construction Space'));
    my ($home,$other,%outhash)=&authorhosts();
    unless ($home) { return ''; }
    my $origcrsid=$env{'request.course.id'};
    my %origcrsdata=&Apache::lonnet::coursedescription($origcrsid);
    if (($env{'form.authorspace'}) && ($env{'form.authorfolder'}=~/\w/)) {
# Do the dumping
	unless ($outhash{'home_'.$env{'form.authorspace'}}) { return ''; }
	my ($ca,$cd)=split(/\@/,$env{'form.authorspace'});
	$r->print('<h3>'.&mt('Copying Files').'</h3>');
	my $title=$env{'form.authorfolder'};
	$title=&clean($title);
	my %replacehash=();
	foreach my $key (keys(%env)) {
	    if ($key=~/^form\.namefor\_(.+)/) {
		$replacehash{$1}=$env{$key};
	    }
	}
	my $crs='/uploaded/'.$env{'request.course.id'}.'/';
	$crs=~s/\_/\//g;
	foreach my $item (keys(%replacehash)) {
	    my $newfilename=$title.'/'.$replacehash{$item};
	    $newfilename=~s/\.(\w+)$//;
	    my $ext=$1;
	    $newfilename=&clean($newfilename);
	    $newfilename.='.'.$ext;
	    my @dirs=split(/\//,$newfilename);
	    my $path='/home/'.$ca.'/public_html';
	    my $makepath=$path;
	    my $fail=0;
	    for (my $i=0;$i<$#dirs;$i++) {
		$makepath.='/'.$dirs[$i];
		unless (-e $makepath) {
		    unless(mkdir($makepath,0777)) { $fail=1; }
		}
	    }
	    $r->print('<br /><tt>'.$item.'</tt> => <tt>'.$newfilename.'</tt>: ');
	    if (my $fh=Apache::File->new('>'.$path.'/'.$newfilename)) {
		if ($item=~/\.(sequence|page|html|htm|xml|xhtml)$/) {
		    print $fh &Apache::lonclonecourse::rewritefile(
         &Apache::lonclonecourse::readfile($env{'request.course.id'},$item),
				     (%replacehash,$crs => '')
								    );
		} else {
		    print $fh
         &Apache::lonclonecourse::readfile($env{'request.course.id'},$item);
		       }
		$fh->close();
	    } else {
		$fail=1;
	    }
	    if ($fail) {
		$r->print('<span class="LC_error">'.&mt('fail').'</span>');
	    } else {
		$r->print('<span class="LC_success">'.&mt('ok').'</span>');
	    }
	}
    } else {
# Input form
	unless ($home==1) {
	    $r->print(
		      '<h3>'.&mt('Select the Construction Space').'</h3><select name="authorspace">');
	}
	foreach my $key (sort(keys(%outhash))) {
	    if ($key=~/^home_(.+)$/) {
		if ($home==1) {
		    $r->print(
		  '<input type="hidden" name="authorspace" value="'.$1.'" />');
		} else {
		    $r->print('<option value="'.$1.'">'.$1.' - '.
			      &Apache::loncommon::plainname(split(/\@/,$1)).'</option>');
		}
	    }
	}
	unless ($home==1) {
	    $r->print('</select>');
	}
	my $title=$origcrsdata{'description'};
	$title=~s/[\/\s]+/\_/gs;
	$title=&clean($title);
	$r->print('<h3>'.&mt('Folder in Construction Space').'</h3>'
                 .'<input type="text" size="50" name="authorfolder" value="'.$title.'" /><br />');
	&tiehash();
	$r->print('<h3>'.&mt('Filenames in Construction Space').'</h3>'
                 .&Apache::loncommon::start_data_table()
                 .&Apache::loncommon::start_data_table_header_row()
                 .'<th>'.&mt('Internal Filename').'</th>'
                 .'<th>'.&mt('Title').'</th>'
                 .'<th>'.&mt('Save as ...').'</th>'
                 .&Apache::loncommon::end_data_table_header_row());
	foreach my $file (&Apache::lonclonecourse::crsdirlist($origcrsid,'userfiles')) {
	    $r->print(&Apache::loncommon::start_data_table_row()
                     .'<td>'.$file.'</td>');
	    my ($ext)=($file=~/\.(\w+)$/);
	    my $title=$hash{'title_'.$hash{
		'ids_/uploaded/'.$origcrsdata{'domain'}.'/'.$origcrsdata{'num'}.'/'.$file}};
	    $r->print('<td>'.($title?$title:'&nbsp;').'</td>');
	    if (!$title) {
		$title=$file;
	    } else {
		$title=~s|/|_|g;
	    }
	    $title=~s/\.(\w+)$//;
	    $title=&clean($title);
	    $title.='.'.$ext;
	    $r->print("\n<td><input type='text' size='60' name='namefor_".$file."' value='".$title."' /></td>"
                     .&Apache::loncommon::end_data_table_row());
	}
	$r->print(&Apache::loncommon::end_data_table());
	&untiehash();
	$r->print(
  '<p><input type="submit" name="dumpcourse" value="'.&mt("Dump $crstype Documents").'" /></p></form>');
    }
}



sub exportbutton {
    my $crstype = &Apache::loncommon::course_type();
    return "<a class='LC_menubuttons_link' href='javascript:injectData(document.courseverify, \"dummy\", \"exportcourse\", \"".&mt('IMS Export')."\")'>".&mt('IMS Export')."</a>".
    &Apache::loncommon::help_open_topic('Docs_Export_Course_Docs').'<br />';
}



sub exportcourse {
    my $r=shift;
    my $crstype = &Apache::loncommon::course_type();
    my %discussiontime = &Apache::lonnet::dump('discussiontimes',
                                               $env{'course.'.$env{'request.course.id'}.'.domain'}, $env{'course.'.$env{'request.course.id'}.'.num'});
    my $numdisc = keys(%discussiontime);
    my $navmap = Apache::lonnavmaps::navmap->new();
    if (!defined($navmap)) {
        $r->print(&Apache::loncommon::start_page('Export '.$crstype.' to IMS Package').
                  '<h2>'.&mt('IMS Export Failed').'</h2>'.
                  '<div class="LC_error">');
        if ($crstype eq 'Community') {
            $r->print(&mt('Unable to retrieve information about community contents'));
        } else {
            $r->print(&mt('Unable to retrieve information about course contents'));
        }
        $r->print('</div><a href="/adm/coursedocs">');
        if ($crstype eq 'Community') {
            $r->print(&mt('Return to Community Editor'));
        } else {
            $r->print(&mt('Return to Course Editor'));
        }
        $r->print('</a>');
        &Apache::lonnet::logthis('IMS export failed - could not create navmap object in '.lc($crstype).':'.$env{'request.course.id'});
        return;
    }
    my $it=$navmap->getIterator(undef,undef,undef,1,undef,undef);
    my $curRes;
    my $outcome;

    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                            ['finishexport']);
    if ($env{'form.finishexport'}) {
        &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                            ['archive','discussion']);

        my @exportitems = &Apache::loncommon::get_env_multiple('form.archive');
        my @discussions = &Apache::loncommon::get_env_multiple('form.discussion');
        if (@exportitems == 0 && @discussions == 0) {
            $outcome = 
                '<p class="LC_warning">'
               .&mt('As you did not select any content items or discussions'
                   .' for export, an IMS package has not been created.')
               .'</p>'
               .'<p>'
               .&mt('Please [_1]go back[_2] to select either content items'
                   .' or discussions for export.'
                       ,'<a href="javascript:history.go(-1)">'
                       ,'</a>')
               .'</p>';
        } else {
            my $now = time;
            my %symbs;
            my $manifestok = 0;
            my $imsresources;
            my $tempexport;
            my $copyresult;
            my $ims_manifest = &create_ims_store($now,\$manifestok,\$outcome,\$tempexport);
            if ($manifestok) {
                &build_package($now,$navmap,\@exportitems,\@discussions,\$outcome,$tempexport,\$copyresult,$ims_manifest);
                close($ims_manifest);

#Create zip file in prtspool
                my $imszipfile = '/prtspool/'.
                $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
                   time.'_'.rand(1000000000).'.zip';
                my $cwd = &Cwd::getcwd();
                my $imszip = '/home/httpd/'.$imszipfile;
                chdir $tempexport;
                open(OUTPUT, "zip -r $imszip *  2> /dev/null |");
                close(OUTPUT);
                chdir $cwd;
                $outcome .= '<p>'
                           .&mt('[_1]Your IMS package[_2] is ready for download.'
                               ,'<a href="'.$imszipfile.'">','</a>')
                           .'</p>';
                if ($copyresult) {
                    $outcome .= '<p class="LC_error">'
                               .&mt('The following errors occurred during export - [_1]'
                                   ,$copyresult)
                               .'</p>';
                }
            } else {
                $outcome = '<p class="LC_error">'
                          .&mt('Unfortunately you will not be able to retrieve'
                              .' an IMS archive of your course at this time,'
                              .' because there was a problem creating a'
                              .' manifest file.')
                          .'</p>'
                          .'<p><a href="javascript:history.go(-1)">'
                          .&mt('Go Back')
                          .'</a></p>';
            }
        }
        $r->print(&Apache::loncommon::start_page('Export '.$crstype.' to IMS Package'));
	$r->print(&Apache::lonhtmlcommon::breadcrumbs('IMS Export'));
        $r->print($outcome);
        $r->print(&Apache::loncommon::end_page());
    } else {
        my $display='<form name="exportdoc" action="" method="post">'."\n".
                    '<p>'.
                    &mt('Choose which items you wish to export from your '.$crstype.'.').
                    '</p>'.
                    '<div class="LC_columnSection"><fieldset>'.
                    '<legend>'.&mt('Content items').'</legend>'.
                    '<input type="button" value="'.&mt('check all').'" '.
                    'onclick="javascript:checkAll(document.exportdoc.archive)" />'.
                    '&nbsp;&nbsp;<input type="button" value="'.&mt('uncheck all').'"'.
                    ' onclick="javascript:uncheckAll(document.exportdoc.archive)" /></fieldset>';
        if ($numdisc > 0) {
            $display .= '<fieldset>'.
                        '<legend>'.&mt('Discussion posts').'</legend>'.
                        '<input type="button" value="'.&mt('check all').'"'.
                        ' onclick="javascript:checkAll(document.exportdoc.discussion)" />'.
                        '&nbsp;&nbsp;<input type="button" value="'.&mt('uncheck all').'"'.
                        ' onclick="javascript:uncheckAll(document.exportdoc.discussion)" />'.
                        '</fieldset>';
        }
        $display .= '</div>';
        my $curRes;
        my $depth = 0;
        my $count = 0;
        my $boards = 0;
        my $startcount = 5;
        my %parent = ();
        my %children = ();
        my $lastcontainer = $startcount;
        $display .= &Apache::loncommon::start_data_table()
                   .&Apache::loncommon::start_data_table_header_row()
                   .'<th>'.&mt('Export content item?').'</th>';
        if ($numdisc > 0) {
            $display .= '<th>'.&mt('Export discussion posts?').'</th>';
        }
        $display .= &Apache::loncommon::end_data_table_header_row();
        while ($curRes = $it->next()) {
            if (ref($curRes)) {
                $count ++;
            }
            if ($curRes == $it->BEGIN_MAP()) {
                $depth++;
                $parent{$depth} = $lastcontainer;
            }
            if ($curRes == $it->END_MAP()) {
                $depth--;
                $lastcontainer = $parent{$depth};
            }
            if (ref($curRes)) {
                my $symb = $curRes->symb();
                my $ressymb = $symb;
                if ($ressymb =~ m|adm/($match_domain)/($match_username)/(\d+)/bulletinboard$|) {
                    unless ($ressymb =~ m|adm/wrapper/adm|) {
                        $ressymb = 'bulletin___'.$3.'___adm/wrapper/adm/'.$1.'/'.$2.'/'.$3.'/bulletinboard';
                    }
                }
                my $currelem = $count+$boards+$startcount;
                $display .= &Apache::loncommon::start_data_table_row()
                           .'<td>'."\n"
                           .'<input type="checkbox" name="archive" value="'.$count.'" ';
                if (($curRes->is_sequence()) || ($curRes->is_page())) {
                    $lastcontainer = $currelem;
                    $display .= 'onclick="javascript:propagateCheck('."'$currelem'".')"';
                }
                $display .= ' />'."\n";
                for (my $i=0; $i<$depth; $i++) {
                    $display .= ('<img src="/adm/lonIcons/whitespace1.gif" class="LC_docs_spacer" alt="" />' x2)."\n";
                }
                if ($curRes->is_sequence()) {
                    $display .= '<img src="/adm/lonIcons/navmap.folder.open.gif" alt="" />&nbsp;'."\n";
                } elsif ($curRes->is_page()) {
                    $display .= '<img src="/adm/lonIcons/navmap.page.open.gif" alt="" />&nbsp;'."\n";
                }
                $children{$parent{$depth}} .= $currelem.':';
                $display .= '&nbsp;'.$curRes->title().'</td>'."\n";

                # Existing discussion posts?
                if ($discussiontime{$ressymb} > 0) {
                    $boards ++;
                    $display .= '<td align="right">'
                               .'<input type="checkbox" name="discussion" value="'.$count.'" />'
                               .'</td>'."\n";
                } elsif ($numdisc > 0) {
                    $display .= '<td>&nbsp;</td>'."\n";
                }
                $display .= &Apache::loncommon::end_data_table_row();
            }
        }
        $display .= &Apache::loncommon::end_data_table();
        my $scripttag = qq|
<script type="text/javascript">
// <![CDATA[
function checkAll(field) {
    if (field.length > 0) {
        for (i = 0; i < field.length; i++) {
            field[i].checked = true ;
        }
    } else {
        field.checked = true
    }
}

function uncheckAll(field) {
    if (field.length > 0) {
        for (i = 0; i < field.length; i++) {
            field[i].checked = false ;
        }
    } else {
        field.checked = false ;
    }
}

function propagateCheck(item) {
    if (document.exportdoc.elements[item].checked == true) {
        containerCheck(item)
    }
}

function containerCheck(item) {
    document.exportdoc.elements[item].checked = true
    var numitems = $count + $boards + $startcount
    var parents = new Array(numitems)
    for (var i=$startcount; i<numitems; i++) {
        parents[i] = new Array
    }
        |;

        foreach my $container (sort { $a <=> $b } (keys(%children))) {
            my @contents = split(/:/,$children{$container});
            for (my $i=0; $i<@contents; $i ++) {
                $scripttag .= '    parents['.$container.']['.$i.'] = '.$contents[$i]."\n";
            }
        }

        $scripttag .= qq|
    if (parents[item].length > 0) {
        for (var j=0; j<parents[item].length; j++) {
            containerCheck(parents[item][j])
        }
     }
}
// ]]>
</script>
        |;
	$r->print(&Apache::loncommon::start_page('Export '.$crstype.' to IMS Package',
						 $scripttag));
	$r->print(&Apache::lonhtmlcommon::breadcrumbs('IMS Export'));
	$r->print($display.
                  '<p><input type="hidden" name="finishexport" value="1" />'.
                  '<input type="submit" name="exportcourse" value="'.
                  &mt('Export').'" /></p></form>');
    }
}

sub create_ims_store {
    my ($now,$manifestok,$outcome,$tempexport) = @_;
    $$tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
    my $ims_manifest;
    if (!-e $$tempexport) {
        mkdir($$tempexport,0700);
    }
    $$tempexport .= '/'.$now;
    if (!-e $$tempexport) {
        mkdir($$tempexport,0700);
    }
    $$tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
    if (!-e $$tempexport) {
        mkdir($$tempexport,0700);
    }
    if (!-e "$$tempexport/resources") {
        mkdir("$$tempexport/resources",0700);
    }
# open manifest file
    my $manifest = '/imsmanifest.xml';
    my $manifestfilename = $$tempexport.$manifest;
    if ($ims_manifest = Apache::File->new('>'.$manifestfilename)) {
        $$manifestok=1;
        print $ims_manifest
'<?xml version="1.0" encoding="UTF-8"?>'."\n".
'<manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1"'.
' xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"'.
' xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"'.
' identifier="MANIFEST-'.$env{'request.course.id'}.'-'.$now.'"'.
'  xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1imscp_v1p1.xsd'.
'  http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">'."\n".
'  <metadata>
    <schema></schema>
    <imsmd:lom>
      <imsmd:general>
        <imsmd:identifier>'.$env{'request.course.id'}.'</imsmd:identifier>
        <imsmd:title>
          <imsmd:langstring xml:lang="en">'.$env{'course.'.$env{'request.course.id'}.'.description'}.'</imsmd:langstring>
        </imsmd:title>
      </imsmd:general>
    </imsmd:lom>
  </metadata>'."\n".
'  <organizations default="ORG-'.$env{'request.course.id'}.'-'.$now.'">'."\n".
'    <organization identifier="ORG-'.$env{'request.course.id'}.'-'.$now.'"'.
' structure="hierarchical">'."\n".
'      <title>'.$env{'course.'.$env{'request.course.id'}.'.description'}.'</title>'
    } else {
        $$outcome .= 'An error occurred opening the IMS manifest file.<br />'
;
    }
    return $ims_manifest;
}

sub build_package {
    my ($now,$navmap,$exportitems,$discussions,$outcome,$tempexport,$copyresult,$ims_manifest) = @_;
# first iterator to look for dependencies
    my $it = $navmap->getIterator(undef,undef,undef,1,undef,undef);
    my $curRes;
    my $count = 0;
    my $depth = 0;
    my $lastcontainer = 0;
    my %parent = ();
    my @dependencies = ();
    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    while ($curRes = $it->next()) {
        if (ref($curRes)) {
            $count ++;
        }
        if ($curRes == $it->BEGIN_MAP()) {
            $depth++;
            $parent{$depth} = $lastcontainer;
        }
        if ($curRes == $it->END_MAP()) {
            $depth--;
            $lastcontainer = $parent{$depth};
        }
        if (ref($curRes)) {
            if ($curRes->is_sequence() || $curRes->is_page()) {
                $lastcontainer = $count;
            }
            if (grep(/^$count$/,@$exportitems)) {
                &get_dependencies($exportitems,\%parent,$depth,\@dependencies);
            }
        }
    }
# second iterator to build manifest and store resources
    $it = $navmap->getIterator(undef,undef,undef,1,undef,undef);
    $depth = 0;
    my $prevdepth;
    $count = 0;
    my $imsresources;
    my $pkgdepth;
    while ($curRes = $it->next()) {
        if ($curRes == $it->BEGIN_MAP()) {
            $prevdepth = $depth;
            $depth++;
        }
        if ($curRes == $it->END_MAP()) {
            $prevdepth = $depth;
            $depth--;
        }

        if (ref($curRes)) {
            $count ++;
            if ((grep(/^$count$/,@$exportitems)) || (grep(/^$count$/,@dependencies))) {
                my $symb = $curRes->symb();
                my $isvisible = 'true';
                my $resourceref;
                if ($curRes->randomout()) {
                    $isvisible = 'false';
                }
                unless ($curRes->is_sequence()) {
                    $resourceref = 'identifierref="RES-'.$env{'request.course.id'}.'-'.$count.'"';
                }
                my $step = $prevdepth - $depth;
                if (($step >= 0) && ($count > 1)) {
                    while ($step >= 0) {
                        print $ims_manifest "\n".'  </item>'."\n";
                        $step --;
                    }
                }
                $prevdepth = $depth;

                my $itementry =
              '<item identifier="ITEM-'.$env{'request.course.id'}.'-'.$count.
              '" isvisible="'.$isvisible.'" '.$resourceref.'>'.
              '<title>'.$curRes->title().'</title>';
                print $ims_manifest "\n".$itementry;

                unless ($curRes->is_sequence()) {
                    my $content_file;
                    my @hrefs = ();
                    &process_content($count,$curRes,$cdom,$cnum,$symb,\$content_file,\@hrefs,$copyresult,$tempexport);
                    if ($content_file) {
                        $imsresources .= "\n".
                     '   <resource identifier="RES-'.$env{'request.course.id'}.'-'.$count.
                     '" type="webcontent" href="'.$content_file.'">'."\n".
                     '       <file href="'.$content_file.'" />'."\n";
                        foreach my $item (@hrefs) {
                            $imsresources .=
                     '        <file href="'.$item.'" />'."\n";
                        }
                        if (grep(/^$count$/,@$discussions)) {
                            my $ressymb = $symb;
                            my $mode;
                            if ($ressymb =~ m|adm/($match_domain)/($match_username)/(\d+)/bulletinboard$|) {
                                unless ($ressymb =~ m|adm/wrapper/adm|) {
                                    $ressymb = 'bulletin___'.$3.'___adm/wrapper/adm/'.$1.'/'.$2.'/'.$3.'/bulletinboard';
                                }
                                $mode = 'board';
                            }
                            my %extras = (
                                          caller => 'imsexport',
                                          tempexport => $tempexport.'/resources',
                                          count => $count
                                         );
                            my $discresult = &Apache::lonfeedback::list_discussion($mode,undef,$ressymb,\%extras);
                        }
                        $imsresources .= '    </resource>'."\n";
                    }
                }
                $pkgdepth = $depth;
            }
        }
    }
    while ($pkgdepth > 0) {
        print $ims_manifest "    </item>\n";
        $pkgdepth --;
    }
    my $resource_text = qq|
    </organization>
  </organizations>
  <resources>
    $imsresources
  </resources>
</manifest>
    |;
    print $ims_manifest $resource_text;
}

sub get_dependencies {
    my ($exportitems,$parent,$depth,$dependencies) = @_;
    if ($depth > 1) {
        if ((!grep(/^$$parent{$depth}$/,@$exportitems)) && (!grep(/^$$parent{$depth}$/,@$dependencies))) {
            push(@{$dependencies},$$parent{$depth});
            if ($depth > 2) {
                &get_dependencies($exportitems,$parent,$depth-1,$dependencies);
            }
        }
    }
}

sub process_content {
    my ($count,$curRes,$cdom,$cnum,$symb,$content_file,$href,$copyresult,$tempexport) = @_;
    my $content_type;
    my $message;
    my @uploads = ();
    if ($curRes->is_sequence()) {
        $content_type = 'sequence';
    } elsif ($curRes->is_page()) {
        $content_type = 'page'; # need to handle individual items in pages.
    } elsif ($symb =~ m-public/$cdom/$cnum/syllabus$-) {
        $content_type = 'syllabus';
        my $contents = &Apache::imsexport::templatedpage($content_type);
        if ($contents) {
            $$content_file = &store_template($contents,$tempexport,$count,$content_type);
        }
    } elsif ($symb =~ m-\.sequence___\d+___ext-) {
        $content_type = 'external';
        my $title = $curRes->title;
        my $contents =  &Apache::imsexport::external($symb,$title);
        if ($contents) {
            $$content_file = &store_template($contents,$tempexport,$count,$content_type);
        }
    } elsif ($symb =~ m-adm/navmaps$-) {
        $content_type =  'navmap';
    } elsif ($symb =~ m-adm/[^/]+/[^/]+/(\d+)/smppg$-) {
        $content_type = 'simplepage';
        my $contents = &Apache::imsexport::templatedpage($content_type,$1,$count,\@uploads);
        if ($contents) {
            $$content_file = &store_template($contents,$tempexport,$count,$content_type);
        }
    } elsif ($symb =~ m-lib/templates/simpleproblem\.problem$-) {
        $content_type = 'simpleproblem';
        my $contents =  &Apache::imsexport::simpleproblem($symb);
        if ($contents) {
            $$content_file = &store_template($contents,$tempexport,$count,$content_type);
        }
    } elsif ($symb =~ m-lib/templates/examupload\.problem$-) {
        $content_type = 'examupload';
    } elsif ($symb =~ m-adm/($match_domain)/($match_username)/(\d+)/bulletinboard$-) {
        $content_type = 'bulletinboard';
        my $contents =  &Apache::imsexport::templatedpage($content_type,$3,$count,\@uploads,$1,$2);
        if ($contents) {
            $$content_file = &store_template($contents,$tempexport,$count,$content_type);
        }
    } elsif ($symb =~ m-adm/([^/]+)/([^/]+)/aboutme$-) {
        $content_type = 'aboutme';
        my $contents =  &Apache::imsexport::templatedpage($content_type,undef,$count,\@uploads,$1,$2);
        if ($contents) {
            $$content_file = &store_template($contents,$tempexport,$count,$content_type);
        }
    } elsif ($symb =~ m-\.(sequence|page)___\d+___uploaded/$cdom/$cnum/-) {
        $$content_file = &replicate_content($cdom,$cnum,$tempexport,$symb,$count,\$message,$href,'uploaded');
    } elsif ($symb =~ m-\.(sequence|page)___\d+___([^/]+)/([^/]+)-) {
        my $canedit = 0;
        if ($2 eq $env{'user.domain'} && $3 eq $env{'user.name'})  {
            $canedit= 1;
        }
# only include problem code where current user is author
        if ($canedit) {
            $$content_file = &replicate_content($cdom,$cnum,$tempexport,$symb,$count,\$message,$href,'resource');
        } else {
            $$content_file = &replicate_content($cdom,$cnum,$tempexport,$symb,$count,\$message,$href,'noedit');
        }
    } elsif ($symb =~ m-uploaded/$cdom/$cnum-) {
        $$content_file = &replicate_content($cdom,$cnum,$tempexport,$symb,$count,\$message,$href,'uploaded');
    }
    if (@uploads > 0) {
        foreach my $item (@uploads) {
            my $uploadmsg = '';
            &replicate_content($cdom,$cnum,$tempexport,$item,$count,\$uploadmsg,$href,'templateupload');
            if ($uploadmsg) {
                $$copyresult .= $uploadmsg."\n";
            }
        }
    }
    if ($message) {
        $$copyresult .= $message."\n";
    }
}

sub replicate_content {
    my ($cdom,$cnum,$tempexport,$symb,$count,$message,$href,$caller) = @_;
    my ($map,$ind,$url);
    if ($caller eq 'templateupload') {
        $url = $symb;
        $url =~ s#//#/#g;
    } else {
        ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
    }
    my $content;
    my $filename;
    my $repstatus;
    my $content_name;
    if ($url =~ m-/([^/]+)$-) {
        $filename = $1;
        if (!-e $tempexport.'/resources') {
            mkdir($tempexport.'/resources',0700);
        }
        if (!-e $tempexport.'/resources/'.$count) {
            mkdir($tempexport.'/resources/'.$count,0700);
        }
        my $destination = $tempexport.'/resources/'.$count.'/'.$filename;
        my $copiedfile;
        if ($copiedfile = Apache::File->new('>'.$destination)) {
            my $content;
            if ($caller eq 'resource') {
                my $respath =  $Apache::lonnet::perlvar{'lonDocRoot'}.'/res';
                my $filepath = &Apache::lonnet::filelocation($respath,$url);
                $content = &Apache::lonnet::getfile($filepath);
                if ($content eq -1) {
                    $$message = 'Could not copy file '.$filename;
                } else {
                    &extract_media($url,$cdom,$cnum,\$content,$count,$tempexport,$href,$message,'resource');
                    $repstatus = 'ok';
                }
            } elsif ($caller eq 'uploaded' || $caller eq 'templateupload') {
                my $rtncode;
                $repstatus = &Apache::lonnet::getuploaded('GET',$url,$cdom,$cnum,\$content,$rtncode);
                if ($repstatus eq 'ok') {
                    if ($url =~ /\.html?$/i) {
                        &extract_media($url,$cdom,$cnum,\$content,$count,$tempexport,$href,$message,'uploaded');
                    }
                } else {
                    $$message = 'Could not render '.$url.' server message - '.$rtncode."<br />\n";
                }
            } elsif ($caller eq 'noedit') {
# Need to render the resource without the LON-CAPA Internal header and the Post discussion footer, and then set $content equal to this.
                $repstatus = 'ok';
                $content = 'Not the owner of this resource';
            }
            if ($repstatus eq 'ok') {
                print $copiedfile $content;
            }
            close($copiedfile);
        } else {
            $$message = 'Could not open destination file for '.$filename."<br />\n";
        }
    } else {
        $$message = 'Could not determine name of file for '.$symb."<br />\n";
    }
    if ($repstatus eq 'ok') {
        $content_name = 'resources/'.$count.'/'.$filename;
    }
    return $content_name;
}

sub extract_media {
    my ($url,$cdom,$cnum,$content,$count,$tempexport,$href,$message,$caller) = @_;
    my ($dirpath,$container);
    my %allfiles = ();
    my %codebase = ();
    if ($url =~ m-(.*/)([^/]+)$-) {
        $dirpath = $1;
        $container = $2;
    } else {
        $dirpath = $url;
        $container = '';
    }
    &Apache::lonnet::extract_embedded_items(undef,\%allfiles,\%codebase,$content);
    foreach my $embed_file (keys(%allfiles)) {
        my $filename;
        if ($embed_file =~ m#([^/]+)$#) {
            $filename = $1;
        } else {
            $filename = $embed_file;
        }
        my $newname = 'res/'.$filename;
        my ($rtncode,$embed_content,$repstatus);
        my $embed_url;
        if ($embed_file =~ m-^/-) {
            $embed_url = $embed_file;           # points to absolute path
        } else {
            if ($embed_file =~ m-https?://-) {
                next;                           # points to url
            } else {
                $embed_url = $dirpath.$embed_file;  # points to relative path
            }
        }
        if ($caller eq 'resource') {
            my $respath =  $Apache::lonnet::perlvar{'lonDocRoot'}.'/res';
            my $embed_path = &Apache::lonnet::filelocation($respath,$embed_url);
            $embed_content = &Apache::lonnet::getfile($embed_path);
            unless ($embed_content eq -1) {
                $repstatus = 'ok';
            }
        } elsif ($caller eq 'uploaded') {

            $repstatus = &Apache::lonnet::getuploaded('GET',$embed_url,$cdom,$cnum,\$embed_content,$rtncode);
        }
        if ($repstatus eq 'ok') {
            my $destination = $tempexport.'/resources/'.$count.'/res';
            if (!-e "$destination") {
                mkdir($destination,0755);
            }
            $destination .= '/'.$filename;
            my $copiedfile;
            if ($copiedfile = Apache::File->new('>'.$destination)) {
                print $copiedfile $embed_content;
                push(@{$href},'resources/'.$count.'/res/'.$filename);
                my $attrib_regexp = '';
                if (@{$allfiles{$embed_file}} > 1) {
                    $attrib_regexp = join('|',@{$allfiles{$embed_file}});
                } else {
                    $attrib_regexp = $allfiles{$embed_file}[0];
                }
                $$content =~ s#($attrib_regexp\s*=\s*['"]?)\Q$embed_file\E(['"]?)#$1$newname$2#gi;
                if ($caller eq 'resource' && $container =~ /\.(problem|library)$/) {
                    $$content =~ s#\Q$embed_file\E#$newname#gi;
                }
            }
        } else {
            $$message .= 'replication of embedded file - '.$embed_file.' in '.$url.' failed, reason -'.$rtncode."<br />\n";
        }
    }
    return;
}

sub store_template {
    my ($contents,$tempexport,$count,$content_type) = @_;
    if ($contents) {
        if ($tempexport) {
            if (!-e $tempexport.'/resources') {
                mkdir($tempexport.'/resources',0700);
            }
            if (!-e $tempexport.'/resources/'.$count) {
                mkdir($tempexport.'/resources/'.$count,0700);
            }
            my $destination = $tempexport.'/resources/'.$count.'/'.$content_type.'.xml';
            my $storetemplate;
            if ($storetemplate = Apache::File->new('>'.$destination)) {
                print $storetemplate $contents;
                close($storetemplate);
            }
            if ($content_type eq 'external') {
                return 'resources/'.$count.'/'.$content_type.'.html';
            } else {
                return 'resources/'.$count.'/'.$content_type.'.xml';
            }
        }
    }
}


sub group_import {
    my ($coursenum, $coursedom, $folder, $container, $caller, @files) = @_;

    while (@files) {
	my ($name, $url, $residx) = @{ shift(@files) };
        if (($url =~ m{^/uploaded/\Q$coursedom\E/\Q$coursenum\E/(default_\d+\.)(page|sequence)$})
	     && ($caller eq 'londocs')
	     && (!&Apache::lonnet::stat_file($url))) {

            my $errtext = '';
            my $fatal = 0;
            my $newmapstr = '<map>'."\n".
                            '<resource id="1" src="" type="start"></resource>'."\n".
                            '<link from="1" to="2" index="1"></link>'."\n".
                            '<resource id="2" src="" type="finish"></resource>'."\n".
                            '</map>';
            $env{'form.output'}=$newmapstr;
            my $result=&Apache::lonnet::finishuserfileupload($coursenum,$coursedom,
                                                'output',$1.$2);
            if ($result != m|^/uploaded/|) {
                $errtext.='Map not saved: A network error occurred when trying to save the new map. ';
                $fatal = 2;
            }
            if ($fatal) {
                return ($errtext,$fatal);
            }
        }
	if ($url) {
	    if (!$residx
		|| defined($LONCAPA::map::zombies[$residx])) {
		$residx = &LONCAPA::map::getresidx($url,$residx);
		push(@LONCAPA::map::order, $residx);
	    }
	    my $ext = 'false';
	    if ($url=~m{^http://} || $url=~m{^https://}) { $ext = 'true'; }
	    $url  = &LONCAPA::map::qtunescape($url);
	    $name = &LONCAPA::map::qtunescape($name);
	    $LONCAPA::map::resources[$residx] =
		join(':', ($name, $url, $ext, 'normal', 'res'));
	}
    }
    return &storemap($coursenum, $coursedom, $folder.'.'.$container);
}

sub breadcrumbs {
    my ($allowed,$crstype)=@_;
    &Apache::lonhtmlcommon::clear_breadcrumbs();
    my (@folders);
    if ($env{'form.pagepath'}) {
        @folders = split('&',$env{'form.pagepath'});
    } else {
        @folders=split('&',$env{'form.folderpath'});
    }
    my $folderpath;
    my $cpinfo='';
    my $plain='';
    my $randompick=-1;
    my $isencrypted=0;
    my $ishidden=0;
    my $is_random_order=0;
    if (!$allowed) {
        my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
        &Apache::lonhtmlcommon::add_breadcrumb(
                                               {'href' => '/adm/menu',
                                                'title'=> 'Go to main menu',
                                                'text' => $description,
                                               });
        $plain .= $description.' &gt;';
    }
    while (@folders) {
	my $folder=shift(@folders);
    	my $foldername=shift(@folders);
	if ($folderpath) {$folderpath.='&';}
	$folderpath.=$folder.'&'.$foldername;
	my $url='/adm/coursedocs?folderpath='.
	    &escape($folderpath);
	    my $name=&unescape($foldername);
# randompick number, hidden, encrypted, random order, is appended with ":"s to the foldername
 	    $name=~s/\:(\d*)\:(\w*)\:(\w*):(\d*)$//;
	    if ($1 ne '') {
               $randompick=$1;
            } else {
               $randompick=-1;
            }
            if ($2) { $ishidden=1; }
            if ($3) { $isencrypted=1; }
	    if ($4 ne '') { $is_random_order = 1; }
            if ($folder eq 'supplemental') {
                $name = &mt('Supplemental '.$crstype.' Documents');
            }
	    &Apache::lonhtmlcommon::add_breadcrumb(
		      {'href'=>$url.$cpinfo,
		       'title'=>$name,
		       'text'=>$name,
		       'no_mt'=>1,
		       });
	$plain.=$name.' &gt; ';
    }
    $plain=~s/\&gt\;\s*$//;
    return (&Apache::lonhtmlcommon::breadcrumbs(undef,undef,0,'nohelp',
					       undef, undef, 1 ),$randompick,$ishidden,$isencrypted,$plain,$is_random_order);
}

sub log_docs {
    return &Apache::lonnet::instructor_log('docslog',@_);
}

{
    my @oldresources=();
    my @oldorder=();
    my $parmidx;
    my %parmaction=();
    my %parmvalue=();
    my $changedflag;

    sub snapshotbefore {
        @oldresources=@LONCAPA::map::resources;
        @oldorder=@LONCAPA::map::order;
        $parmidx=undef;
        %parmaction=();
        %parmvalue=();
        $changedflag=0;
    }

    sub remember_parms {
        my ($idx,$parameter,$action,$value)=@_;
        $parmidx=$idx;
        $parmaction{$parameter}=$action;
        $parmvalue{$parameter}=$value;
        $changedflag=1;
    }

    sub log_differences {
        my ($plain)=@_;
        my %storehash=('folder' => $plain,
                       'currentfolder' => $env{'form.folder'});
        if ($parmidx) {
           $storehash{'parameter_res'}=$oldresources[$parmidx];
           foreach my $parm (keys(%parmaction)) {
              $storehash{'parameter_action_'.$parm}=$parmaction{$parm};
              $storehash{'parameter_value_'.$parm}=$parmvalue{$parm};
           }
        }
        my $maxidx=$#oldresources;
        if ($#LONCAPA::map::resources>$#oldresources) {
           $maxidx=$#LONCAPA::map::resources;
        }
        for (my $idx=0; $idx<=$maxidx; $idx++) {
           if ($LONCAPA::map::resources[$idx] ne $oldresources[$idx]) {
              $storehash{'before_resources_'.$idx}=$oldresources[$idx];
              $storehash{'after_resources_'.$idx}=$LONCAPA::map::resources[$idx];
              $changedflag=1;
           }
           if ($LONCAPA::map::order[$idx] ne $oldorder[$idx]) {
              $storehash{'before_order_res_'.$idx}=$oldresources[$oldorder[$idx]];
              $storehash{'after_order_res_'.$idx}=$LONCAPA::map::resources[$LONCAPA::map::order[$idx]];
              $changedflag=1;
           }
        }
	$storehash{'maxidx'}=$maxidx;
        if ($changedflag) { &log_docs(\%storehash); }
    }
}





sub docs_change_log {
    my ($r)=@_;
    my $folder=$env{'form.folder'};
    $r->print(&Apache::loncommon::start_page('Course Document Change Log'));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Document Change Log'));
    my %docslog=&Apache::lonnet::dump('nohist_docslog',
                                      $env{'course.'.$env{'request.course.id'}.'.domain'},
                                      $env{'course.'.$env{'request.course.id'}.'.num'});

    if ((keys(%docslog))[0]=~/^error\:/) { undef(%docslog); }

    $r->print('<form action="/adm/coursedocs" method="post" name="docslog">'.
              '<input type="hidden" name="docslog" value="1" />');

    my %saveable_parameters = ('show' => 'scalar',);
    &Apache::loncommon::store_course_settings('docs_log',
                                              \%saveable_parameters);
    &Apache::loncommon::restore_course_settings('docs_log',
                                                \%saveable_parameters);
    if (!$env{'form.show'}) { $env{'form.show'}=10; }
# FIXME: internationalization seems wrong here
    my %lt=('hiddenresource' => 'Resources hidden',
	    'encrypturl'     => 'URL hidden',
	    'randompick'     => 'Randomly pick',
	    'randomorder'    => 'Randomly ordered',
	    'set'            => 'set to',
	    'del'            => 'deleted');
    $r->print(&Apache::loncommon::display_filter().
              '<input type="hidden" name="folder" value="'.$folder.'" />'.
              '<input type="submit" value="'.&mt('Display').'" /></form>');
    $r->print(&Apache::loncommon::start_data_table().&Apache::loncommon::start_data_table_header_row().
              '<th>'.&mt('Time').'</th><th>'.&mt('User').'</th><th>'.&mt('Folder').'</th><th>'.&mt('Before').'</th><th>'.
              &mt('After').'</th>'.
              &Apache::loncommon::end_data_table_header_row());
    my $shown=0;
    foreach my $id (sort { $docslog{$b}{'exe_time'}<=>$docslog{$a}{'exe_time'} } (keys(%docslog))) {
	if ($env{'form.displayfilter'} eq 'currentfolder') {
	    if ($docslog{$id}{'logentry'}{'currentfolder'} ne $folder) { next; }
	}
        my @changes=keys(%{$docslog{$id}{'logentry'}});
        if ($env{'form.displayfilter'} eq 'containing') {
	    my $wholeentry=$docslog{$id}{'exe_uname'}.':'.$docslog{$id}{'exe_udom'}.':'.
		&Apache::loncommon::plainname($docslog{$id}{'exe_uname'},$docslog{$id}{'exe_udom'});
	    foreach my $key (@changes) {
		$wholeentry.=':'.$docslog{$id}{'logentry'}{$key};
	    }
	    if ($wholeentry!~/\Q$env{'form.containingphrase'}\E/i) { next; }
	}
        my $count = 0;
        my $time =
            &Apache::lonlocal::locallocaltime($docslog{$id}{'exe_time'});
        my $plainname =
            &Apache::loncommon::plainname($docslog{$id}{'exe_uname'},
                                          $docslog{$id}{'exe_udom'});
        my $about_me_link =
            &Apache::loncommon::aboutmewrapper($plainname,
                                               $docslog{$id}{'exe_uname'},
                                               $docslog{$id}{'exe_udom'});
        my $send_msg_link='';
        if ((($docslog{$id}{'exe_uname'} ne $env{'user.name'})
             || ($docslog{$id}{'exe_udom'} ne $env{'user.domain'}))) {
            $send_msg_link ='<br />'.
                &Apache::loncommon::messagewrapper(&mt('Send message'),
                                                   $docslog{$id}{'exe_uname'},
                                                   $docslog{$id}{'exe_udom'});
        }
        $r->print(&Apache::loncommon::start_data_table_row());
        $r->print('<td>'.$time.'</td>
                       <td>'.$about_me_link.
                  '<br /><tt>'.$docslog{$id}{'exe_uname'}.
                                  ':'.$docslog{$id}{'exe_udom'}.'</tt>'.
                  $send_msg_link.'</td><td>'.
                  $docslog{$id}{'logentry'}{'folder'}.'</td><td>');
# Before
	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
	    my $oldname=(split(/\:/,$docslog{$id}{'logentry'}{'before_resources_'.$idx}))[0];
	    my $newname=(split(/\:/,$docslog{$id}{'logentry'}{'after_resources_'.$idx}))[0];
	    if ($oldname ne $newname) {
		$r->print(&LONCAPA::map::qtescape($oldname));
	    }
	}
	$r->print('<ul>');
	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
            if ($docslog{$id}{'logentry'}{'before_order_res_'.$idx}) {
		$r->print('<li>'.&LONCAPA::map::qtescape((split(/\:/,$docslog{$id}{'logentry'}{'before_order_res_'.$idx}))[0]).'</li>');
	    }
	}
	$r->print('</ul>');
# After
        $r->print('</td><td>');

	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
	    my $oldname=(split(/\:/,$docslog{$id}{'logentry'}{'before_resources_'.$idx}))[0];
	    my $newname=(split(/\:/,$docslog{$id}{'logentry'}{'after_resources_'.$idx}))[0];
	    if ($oldname ne '' && $oldname ne $newname) {
		$r->print(&LONCAPA::map::qtescape($newname));
	    }
	}
	$r->print('<ul>');
	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
            if ($docslog{$id}{'logentry'}{'after_order_res_'.$idx}) {
		$r->print('<li>'.&LONCAPA::map::qtescape((split(/\:/,$docslog{$id}{'logentry'}{'after_order_res_'.$idx}))[0]).'</li>');
	    }
	}
	$r->print('</ul>');
	if ($docslog{$id}{'logentry'}{'parameter_res'}) {
	    $r->print(&LONCAPA::map::qtescape((split(/\:/,$docslog{$id}{'logentry'}{'parameter_res'}))[0]).':<ul>');
	    foreach my $parameter ('randompick','hiddenresource','encrypturl','randomorder') {
		if ($docslog{$id}{'logentry'}{'parameter_action_'.$parameter}) {
# FIXME: internationalization seems wrong here
		    $r->print('<li>'.
			      &mt($lt{$parameter}.' '.$lt{$docslog{$id}{'logentry'}{'parameter_action_'.$parameter}}.' [_1]',
				  $docslog{$id}{'logentry'}{'parameter_value_'.$parameter})
			      .'</li>');
		}
	    }
	    $r->print('</ul>');
	}
# End
        $r->print('</td>'.&Apache::loncommon::end_data_table_row());
        $shown++;
        if (!($env{'form.show'} eq &mt('all')
              || $shown<=$env{'form.show'})) { last; }
    }
    $r->print(&Apache::loncommon::end_data_table());
}

sub update_paste_buffer {
    my ($coursenum,$coursedom) = @_;

    return if (!defined($env{'form.markcopy'}));
    return if (!defined($env{'form.copyfolder'}));
    return if ($env{'form.markcopy'} < 0);

    my ($errtext,$fatal) = &mapread($coursenum,$coursedom,
				    $env{'form.copyfolder'});

    return if ($fatal);

# Mark for copying
    my ($title,$url)=split(':',$LONCAPA::map::resources[$LONCAPA::map::order[$env{'form.markcopy'}]]);
    if (&is_supplemental_title($title)) {
        &Apache::lonnet::appenv({'docs.markedcopy_supplemental' => $title});
	($title) = &parse_supplemental_title($title);
    } elsif ($env{'docs.markedcopy_supplemental'}) {
        &Apache::lonnet::delenv('docs.markedcopy_supplemental');
    }
    $url=~s{http(&colon;|:)//https(&colon;|:)//}{https$2//};

    &Apache::lonnet::appenv({'docs.markedcopy_title' => $title,
			    'docs.markedcopy_url'   => $url});
    delete($env{'form.markcopy'});
}

sub print_paste_buffer {
    my ($r,$container) = @_;
    return if (!defined($env{'docs.markedcopy_url'}));

    $r->print('<fieldset>'
             .'<legend>'.&mt('Clipboard').'</legend>'
             .'<form name="pasteform" action="/adm/coursedocs" method="post">'
             .'<input type="submit" name="pastemarked" value="'.&mt('Paste').'" /> '
    );

    my $type;
    if ($env{'docs.markedcopy_url'} =~ m{^(?:/adm/wrapper/ext|(?:http|https)(?:&colon;|:))//} ) {
	$type = &mt('External Resource');
	$r->print($type.': '.
		  &LONCAPA::map::qtescape($env{'docs.markedcopy_title'}).' ('.
		  &LONCAPA::map::qtescape($env{'docs.markedcopy_url'}).')');
    }  else {
	my $extension = (split(/\./,$env{'docs.markedcopy_url'}))[-1];
	my $icon = &Apache::loncommon::icon($extension);
	if ($extension eq 'sequence' &&
	    $env{'docs.markedcopy_url'} =~ m{/default_\d+\.sequence$ }x) {
	    $icon = &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
	    $icon .= '/navmap.folder.closed.gif';
	}
	$icon = '<img src="'.$icon.'" alt="" class="LC_icon" />';
	$r->print($icon.$type.': '.  &parse_supplemental_title(&LONCAPA::map::qtescape($env{'docs.markedcopy_title'})));
    }
    if ($container eq 'page') {
	$r->print('
	<input type="hidden" name="pagepath" value="'.&HTML::Entities::encode($env{'form.pagepath'},'<>&"').'" />
	<input type="hidden" name="pagesymb" value="'.&HTML::Entities::encode($env{'form.pagesymb'},'<>&"').'" />
');
    } else {
	$r->print('
        <input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />
');
    }
    $r->print('</form></fieldset>');
}

sub do_paste_from_buffer {
    my ($coursenum,$coursedom,$folder) = @_;

    if (!$env{'form.pastemarked'}) {
        return;
    }

# paste resource to end of list
    my $url=&LONCAPA::map::qtescape($env{'docs.markedcopy_url'});
    my $title=&LONCAPA::map::qtescape($env{'docs.markedcopy_title'});
# Maps need to be copied first
    if (($url=~/\.(page|sequence)$/) && ($url=~/^\/uploaded\//)) {
	$title=&mt('Copy of').' '.$title;
	my $newid=$$.int(rand(100)).time;
	my ($oldid,$ext) = ($url=~/^(.+)\.(\w+)$/);
        if ($oldid =~ m{^(/uploaded/\Q$coursedom\E/\Q$coursenum\E/)(\D+)(\d+)$}) {
            my $path = $1;
            my $prefix = $2;
            my $ancestor = $3;
            if (length($ancestor) > 10) {
                $ancestor = substr($ancestor,-10,10);
            }
            $oldid = $path.$prefix.$ancestor;
        }
        my $counter = 0;
        my $newurl=$oldid.$newid.'.'.$ext;
        my $is_unique = &uniqueness_check($newurl);
        while (!$is_unique && $counter < 100) {
            $counter ++;
            $newid ++;
            $newurl = $oldid.$newid;
            $is_unique = &uniqueness_check($newurl);
        }
        if (!$is_unique) {
            if ($url=~/\.page$/) {
                return &mt('Paste failed: an error occurred creating a unique URL for the composite page');
            } else {
                return &mt('Paste failed: an error occurred creating a unique URL for the folder');
            }
        }
	my $storefn=$newurl;
	$storefn=~s{^/\w+/$match_domain/$match_username/}{};
	my $paste_map_result =
            &Apache::lonclonecourse::writefile($env{'request.course.id'},$storefn,
					       &Apache::lonnet::getfile($url));
        if ($paste_map_result eq '/adm/notfound.html') {
            if ($url=~/\.page$/) {
                return &mt('Paste failed: an error occurred saving the composite page');
            } else {
                return &mt('Paste failed: an error occurred saving the folder');
            }
        }
	$url = $newurl;
    }
# published maps can only exists once, so remove it from paste buffer when done
    if (($url=~/\.(page|sequence)$/) && ($url=~m {^/res/})) {
	&Apache::lonnet::delenv('docs.markedcopy');
    }
    if ($url=~ m{/smppg$}) {
	my $db_name = &Apache::lonsimplepage::get_db_name($url);
	if ($db_name =~ /^smppage_/) {
	    #simple pages, need to copy the db contents to a new one.
	    my %contents=&Apache::lonnet::dump($db_name,$coursedom,$coursenum);
	    my $now = time();
	    $db_name =~ s{_\d*$ }{_$now}x;
	    my $result=&Apache::lonnet::put($db_name,\%contents,
					    $coursedom,$coursenum);
	    $url =~ s{/(\d*)/smppg$ }{/$now/smppg}x;
	    $title=&mt('Copy of').' '.$title;
	}
    }
    $title = &LONCAPA::map::qtunescape($title);
    my $ext='false';
    if ($url=~m{^http(|s)://}) { $ext='true'; }
    $url       = &LONCAPA::map::qtunescape($url);
# Now insert the URL at the bottom
    my $newidx = &LONCAPA::map::getresidx($url);
    if ($env{'docs.markedcopy_supplemental'}) {
        if ($folder =~ /^supplemental/) {
            $title = $env{'docs.markedcopy_supplemental'};
        } else {
            (undef,undef,$title) =
                &parse_supplemental_title($env{'docs.markedcopy_supplemental'});
        }
    } else {
        if ($folder=~/^supplemental/) {
           $title=time.'___&&&___'.$env{'user.name'}.'___&&&___'.
                  $env{'user.domain'}.'___&&&___'.$title;
        }
    }

    $LONCAPA::map::resources[$newidx]= 	$title.':'.$url.':'.$ext.':normal:res';
    push(@LONCAPA::map::order, $newidx);
    return 'ok';
# Store the result
}

sub uniqueness_check {
    my ($newurl) = @_;
    my $unique = 1;
    foreach my $res (@LONCAPA::map::order) {
        my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$res]);
        $url=&LONCAPA::map::qtescape($url);
        if ($newurl eq $url) {
            $unique = 0;
            last;
        }
    }
    return $unique;
}

my %parameter_type = ( 'randompick'     => 'int_pos',
		       'hiddenresource' => 'string_yesno',
		       'encrypturl'     => 'string_yesno',
		       'randomorder'    => 'string_yesno',);
my $valid_parameters_re = join('|',keys(%parameter_type));
# set parameters
sub update_parameter {

    return 0 if ($env{'form.changeparms'} !~ /^($valid_parameters_re)$/);

    my $which = $env{'form.changeparms'};
    my $idx = $env{'form.setparms'};
    if ($env{'form.'.$which.'_'.$idx}) {
	my $value = ($which eq 'randompick') ? $env{'form.'.$which.'_'.$idx}
	                                     : 'yes';
	&LONCAPA::map::storeparameter($idx, 'parameter_'.$which, $value,
				      $parameter_type{$which});
	&remember_parms($idx,$which,'set',$value);
    } else {
	&LONCAPA::map::delparameter($idx,'parameter_'.$which);

	&remember_parms($idx,$which,'del');
    }
    return 1;
}


sub handle_edit_cmd {
    my ($coursenum,$coursedom) =@_;

    my ($cmd,$idx)=split('_',$env{'form.cmd'});

    my $ratstr = $LONCAPA::map::resources[$LONCAPA::map::order[$idx]];
    my ($title, $url, @rrest) = split(':', $ratstr);

    if ($cmd eq 'del') {
	if (($url=~m|/+uploaded/\Q$coursedom\E/\Q$coursenum\E/|) &&
	    ($url!~/\.(page|sequence|problem|exam|quiz|assess|survey|form|library|task)$/)) {
	    &Apache::lonnet::removeuploadedurl($url);
	} else {
	    &LONCAPA::map::makezombie($LONCAPA::map::order[$idx]);
	}
	splice(@LONCAPA::map::order, $idx, 1);

    } elsif ($cmd eq 'cut') {
	&LONCAPA::map::makezombie($LONCAPA::map::order[$idx]);
	splice(@LONCAPA::map::order, $idx, 1);

    } elsif ($cmd eq 'up'
	     && ($idx) && (defined($LONCAPA::map::order[$idx-1]))) {
	@LONCAPA::map::order[$idx-1,$idx] = @LONCAPA::map::order[$idx,$idx-1];

    } elsif ($cmd eq 'down'
	     && defined($LONCAPA::map::order[$idx+1])) {
	@LONCAPA::map::order[$idx+1,$idx] = @LONCAPA::map::order[$idx,$idx+1];

    } elsif ($cmd eq 'rename') {

	my $comment = &LONCAPA::map::qtunescape($env{'form.title'});
	if ($comment=~/\S/) {
	    $LONCAPA::map::resources[$LONCAPA::map::order[$idx]]=
		$comment.':'.join(':', $url, @rrest);
	}
# Devalidate title cache
	my $renamed_url=&LONCAPA::map::qtescape($url);
	&Apache::lonnet::devalidate_title_cache($renamed_url);
    } else {
	return 0;
    }
    return 1;
}

sub editor {
    my ($r,$coursenum,$coursedom,$folder,$allowed,$upload_output,$crstype)=@_;
    my $container= ($env{'form.pagepath'}) ? 'page'
		                           : 'sequence';

    my ($errtext,$fatal) = &mapread($coursenum,$coursedom,
				    $folder.'.'.$container);
    return $errtext if ($fatal);

    if ($#LONCAPA::map::order<1) {
	my $idx=&LONCAPA::map::getresidx();
	if ($idx<=0) { $idx=1; }
       	$LONCAPA::map::order[0]=$idx;
        $LONCAPA::map::resources[$idx]='';
    }

    my ($breadcrumbtrail,$randompick,$ishidden,$isencrypted,$plain,$is_random_order) =
	    &breadcrumbs($allowed,$crstype);
        $r->print($breadcrumbtrail);

    unless ($allowed) {
        $randompick = -1;
    }

# ------------------------------------------------------------ Process commands

# ---------------- if they are for this folder and user allowed to make changes
    if (($allowed) && ($env{'form.folder'} eq $folder)) {
# set parameters and change order
	&snapshotbefore();

	if (&update_parameter()) {
	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
	    return $errtext if ($fatal);
	}

	if ($env{'form.newpos'} && $env{'form.currentpos'}) {
# change order
	    my $res = splice(@LONCAPA::map::order,$env{'form.currentpos'}-1,1);
	    splice(@LONCAPA::map::order,$env{'form.newpos'}-1,0,$res);

	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
	    return $errtext if ($fatal);
	}

	if ($env{'form.pastemarked'}) {
            my $paste_res =
                &do_paste_from_buffer($coursenum,$coursedom,$folder);
            if ($paste_res eq 'ok') {
                ($errtext,$fatal) = &storemap($coursenum,$coursedom,$folder.'.'.$container);
                return $errtext if ($fatal);
            } elsif ($paste_res ne '') {
                $r->print('<p><span class="LC_error">'.$paste_res.'</span></p>');
            }
	}

	$r->print($upload_output);

	if (&handle_edit_cmd()) {
	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
	    return $errtext if ($fatal);
	}
# Group import/search
	if ($env{'form.importdetail'}) {
	    my @imports;
	    foreach my $item (split(/\&/,$env{'form.importdetail'})) {
		if (defined($item)) {
		    my ($name,$url,$residx)=
			map {&unescape($_)} split(/\=/,$item);
		    push(@imports, [$name, $url, $residx]);
		}
	    }
	    ($errtext,$fatal)=&group_import($coursenum, $coursedom, $folder,
					    $container,'londocs',@imports);
	    return $errtext if ($fatal);
	}
# Loading a complete map
	if ($env{'form.loadmap'}) {
	    if ($env{'form.importmap'}=~/\w/) {
		foreach my $res (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
		    my ($title,$url,$ext,$type)=split(/\:/,$res);
		    my $idx=&LONCAPA::map::getresidx($url);
		    $LONCAPA::map::resources[$idx]=$res;
		    $LONCAPA::map::order[$#LONCAPA::map::order+1]=$idx;
		}
		($errtext,$fatal)=&storemap($coursenum,$coursedom,
					    $folder.'.'.$container);
		return $errtext if ($fatal);
	    } else {
		$r->print('<p><span class="LC_error">'.&mt('No map selected.').'</span></p>');

	    }
	}
	&log_differences($plain);
    }
# ---------------------------------------------------------------- End commands
# ---------------------------------------------------------------- Print screen
    my $idx=0;
    my $shown=0;
    if (($ishidden) || ($isencrypted) || ($randompick>=0) || ($is_random_order)) {
	$r->print('<div class="LC_Box">'.
          '<ol class="LC_docs_parameters"><li class="LC_docs_parameters_title">'.&mt('Parameters:').'</li>'.
		  ($randompick>=0?'<li>'.&mt('randomly pick [quant,_1,resource]',$randompick).'</li>':'').
		  ($ishidden?'<li>'.&mt('contents hidden').'</li>':'').
		  ($isencrypted?'<li>'.&mt('URLs hidden').'</li>':'').
		  ($is_random_order?'<li>'.&mt('random order').'</li>':'').
		  '</ol>');
        if ($randompick>=0) {
            $r->print('<p class="LC_warning">'
                 .&mt('Caution: this folder is set to randomly pick a subset'
                     .' of resources. Adding or removing resources from this'
                     .' folder will change the set of resources that the'
                     .' students see, resulting in spurious or missing credit'
                     .' for completed problems, not limited to ones you'
                     .' modify. Do not modify the contents of this folder if'
                     .' it is in active student use.')
                 .'</p>'
            );
        }
        if ($is_random_order) {
            $r->print('<p class="LC_warning">'
                 .&mt('Caution: this folder is set to randomly order its'
                     .' contents. Adding or removing resources from this folder'
                     .' will change the order of resources shown.')
                 .'</p>'
            );
        }
        $r->print('</div>');
    }

    my $output;  

    &Apache::loncommon::start_data_table_count(); #setup a row counter 
    foreach my $res (@LONCAPA::map::order) {
        my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$res]);
        $name=&LONCAPA::map::qtescape($name);
        $url=&LONCAPA::map::qtescape($url);
        unless ($name) {  $name=(split(/\//,$url))[-1]; }
        unless ($name) { $idx++; next; }
        $output .= &entryline($idx,$name,$url,$folder,$allowed,$res,
                              $coursenum,$crstype);
        $idx++;
        $shown++;
    }
    &Apache::loncommon::end_data_table_count();
    
    if ($shown) {
        $r->print(&Apache::loncommon::start_scrollbox('900px','880px','400px')
                 .&Apache::loncommon::start_data_table());
        if ($allowed) {
            $r->print(&Apache::loncommon::start_data_table_header_row()
                     .'<th colspan="2">'.&mt('Move').'</th>'
                     .'<th>'.&mt('Actions').'</th>'
                     .'<th colspan="2">'.&mt('Document').'</th>');
            if ($folder !~ /^supplemental/) {
                $r->print('<th colspan="4">'.&mt('Settings').'</th>');
            }
            $r->print(&Apache::loncommon::end_data_table_header_row());
        }
        $r->print($output
                 .&Apache::loncommon::end_data_table()
                 .&Apache::loncommon::end_scrollbox()
        );
    } else {
        $r->print('<p class="LC_info">'
                 .&mt('Currently no documents.')
                 .'</p>'
        );
    }
    if ($allowed) {
        &print_paste_buffer($r,$container);
    }
    return;
}

sub process_file_upload {
    my ($upload_output,$coursenum,$coursedom,$allfiles,$codebase,$uploadcmd) = @_;
# upload a file, if present
    my ($parseaction,$showupload,$nextphase,$mimetype);
    if ($env{'form.parserflag'}) {
        $parseaction = 'parse';
    }
    my $folder=$env{'form.folder'};
    if ($folder eq '') {
        $folder='default';
    }
    if ( ($folder=~/^$uploadcmd/) || ($uploadcmd eq 'default') ) {
        my $errtext='';
        my $fatal=0;
        my $container='sequence';
        if ($env{'form.pagepath'}) {
            $container='page';
        }
        ($errtext,$fatal)=
              &mapread($coursenum,$coursedom,$folder.'.'.$container);
        if ($#LONCAPA::map::order<1) {
            $LONCAPA::map::order[0]=1;
            $LONCAPA::map::resources[1]='';
        }
        if ($fatal) {
            $$upload_output = '<p><span class="LC_error">'.&mt('The uploaded file has not been stored as an error occurred reading the contents of the current folder.').'</span></p>';
            return;
        }
        my $destination = 'docs/';
        if ($folder =~ /^supplemental/) {
            $destination = 'supplemental/';
        }
        if (($folder eq 'default') || ($folder eq 'supplemental')) {
            $destination .= 'default/';
        } elsif ($folder =~ /^(default|supplemental)_(\d+)$/) {
            $destination .=  $2.'/';
        }
# this is for a course, not a user, so set context to coursedoc.
        my $newidx=&LONCAPA::map::getresidx();
        $destination .= $newidx;
        my $url=&Apache::lonnet::userfileupload('uploaddoc','coursedoc',$destination,
						$parseaction,$allfiles,
						$codebase,undef,undef,undef,undef,
                                                undef,undef,\$mimetype);
        if ($url =~ m{^/uploaded/\Q$coursedom\E/\Q$coursenum\E.*/([^/]+)$}) {
            my $stored = $1;
            $showupload = '<p>'.&mt('Uploaded [_1]','<span class="LC_filename">'.
                          $stored.'</span>').'</p>';
        } else {
            my ($filename) = ($env{'form.uploaddoc.filename'} =~ m{([^/]+)$});
            
            $$upload_output = '<p><span class="LC_error">'.&mt('Unable to save file [_1].','<span class="LC_filename">'.$filename.'</span>').'</span></p>';
            return;
        }
        my $ext='false';
        if ($url=~m{^http://}) { $ext='true'; }
	$url     = &LONCAPA::map::qtunescape($url);
        my $comment=$env{'form.comment'};
	$comment = &LONCAPA::map::qtunescape($comment);
        if ($folder=~/^supplemental/) {
              $comment=time.'___&&&___'.$env{'user.name'}.'___&&&___'.
                  $env{'user.domain'}.'___&&&___'.$comment;
        }

        $LONCAPA::map::resources[$newidx]=
	    $comment.':'.$url.':'.$ext.':normal:res';
        $LONCAPA::map::order[$#LONCAPA::map::order+1]= $newidx;
        ($errtext,$fatal)=&storemap($coursenum,$coursedom,
				    $folder.'.'.$container);
        if ($fatal) {
            $$upload_output = '<p><span class="LC_error">'.$errtext.'</span></p>';
            return;
        } else {
            if ($parseaction eq 'parse' && $mimetype eq 'text/html') {
                $$upload_output = $showupload;
                my $total_embedded = scalar(keys(%{$allfiles}));
                if ($total_embedded > 0) {
                    my $uploadphase = 'upload_embedded';
                    my $primaryurl = &HTML::Entities::encode($url,'<>&"');
		    my $state = &embedded_form_elems($uploadphase,$primaryurl,$newidx); 
                    my ($embedded,$num) = 
                        &Apache::loncommon::ask_for_embedded_content(
                            '/adm/coursedocs',$state,$allfiles,$codebase,{'docs_url' => $url});
                    if ($embedded) {
                        if ($num) {
                            $$upload_output .=
			         '<p>'.&mt('This file contains embedded multimedia objects, which need to be uploaded.').'</p>'.$embedded;
                            $nextphase = $uploadphase;
                        } else {
                            $$upload_output .= $embedded;
                        }
                    } else {
                        $$upload_output .= &mt('Embedded item(s) already present, so no additional upload(s) required').'<br />';
                    }
                } else {
                    $$upload_output .= &mt('No embedded items identified').'<br />';
                }
            }
        }
    }
    return $nextphase;
}

sub is_supplemental_title {
    my ($title) = @_;
    return scalar($title =~ m/^(\d+)___&&&___($match_username)___&&&___($match_domain)___&&&___(.*)$/);
}

sub parse_supplemental_title {
    my ($title) = @_;

    my ($foldertitle,$renametitle);
    if ($title =~ /&amp;&amp;&amp;/) {
	$title = &HTML::Entites::decode($title);
    }
 if ($title =~ m/^(\d+)___&&&___($match_username)___&&&___($match_domain)___&&&___(.*)$/) {
	$renametitle=$4;
	my ($time,$uname,$udom) = ($1,$2,$3);
	$foldertitle=&Apache::lontexconvert::msgtexconverted($4);
	my $name =  &Apache::loncommon::plainname($uname,$udom);
	$name = &HTML::Entities::encode($name,'"<>&\'');
        $renametitle = &HTML::Entities::encode($renametitle,'"<>&\'');
	$title='<i>'.&Apache::lonlocal::locallocaltime($time).'</i> '.
	    $name.': <br />'.$foldertitle;
    }
    if (wantarray) {
	return ($title,$foldertitle,$renametitle);
    }
    return $title;
}

# --------------------------------------------------------------- An entry line

sub entryline {
    my ($index,$title,$url,$folder,$allowed,$residx,$coursenum,$crstype)=@_;
    my ($foldertitle,$pagetitle,$renametitle);
    if (&is_supplemental_title($title)) {
	($title,$foldertitle,$renametitle) = &parse_supplemental_title($title);
	$pagetitle = $foldertitle;
    } else {
	$title=&HTML::Entities::encode($title,'"<>&\'');
	$renametitle=$title;
	$foldertitle=$title;
	$pagetitle=$title;
    }

    my $orderidx=$LONCAPA::map::order[$index];


    $renametitle=~s/\\/\\\\/g;
    $renametitle=~s/\&quot\;/\\\"/g;
    $renametitle=~s/ /%20/g;
    my $line=&Apache::loncommon::start_data_table_row();
    my ($form_start,$form_end);
# Edit commands
    my ($container, $type, $esc_path, $path, $symb);
    if ($env{'form.folderpath'}) {
	$type = 'folder';
        $container = 'sequence';
	$esc_path=&escape($env{'form.folderpath'});
	$path = &HTML::Entities::encode($env{'form.folderpath'},'<>&"');
	# $htmlfoldername=&HTML::Entities::encode($env{'form.foldername'},'<>&"');
    }
    if ($env{'form.pagepath'}) {
        $type = $container = 'page';
        $esc_path=&escape($env{'form.pagepath'});
	$path = &HTML::Entities::encode($env{'form.pagepath'},'<>&"');
        $symb=&escape($env{'form.pagesymb'});
    }
    my $cpinfo='';
    if ($allowed) {
	my $incindex=$index+1;
	my $selectbox='';
	if (($folder!~/^supplemental/) &&
	    ($#LONCAPA::map::order>0) &&
	    ((split(/\:/,
	     $LONCAPA::map::resources[$LONCAPA::map::order[0]]))[1]
	     ne '') &&
	    ((split(/\:/,
	     $LONCAPA::map::resources[$LONCAPA::map::order[1]]))[1]
	     ne '')) {
	    $selectbox=
		'<input type="hidden" name="currentpos" value="'.$incindex.'" />'.
		'<select name="newpos" onchange="this.form.submit()">';
	    for (my $i=1;$i<=$#LONCAPA::map::order+1;$i++) {
		if ($i==$incindex) {
		    $selectbox.='<option value="" selected="selected">('.$i.')</option>';
		} else {
		    $selectbox.='<option value="'.$i.'">'.$i.'</option>';
		}
	    }
	    $selectbox.='</select>';
	}
	my %lt=&Apache::lonlocal::texthash(
                'up' => 'Move Up',
		'dw' => 'Move Down',
		'rm' => 'Remove',
                'ct' => 'Cut',
		'rn' => 'Rename',
		'cp' => 'Copy');
	my $nocopy=0;
        my $nocut=0;
        if ($url=~/\.(page|sequence)$/) {
	    if ($url =~ m{/res/}) {
		# no copy for published maps
		$nocopy = 1;
	    } else {
		foreach my $item (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$url),1)) {
		    my ($title,$url,$ext,$type)=split(/\:/,$item);
		    if (($url=~/\.(page|sequence)/) && ($type ne 'zombie')) {
			$nocopy=1;
			last;
		    }
		}
	    }
	}
        if ($url=~/^\/res\/lib\/templates\//) {
           $nocopy=1;
           $nocut=1;
        }
        my $copylink='&nbsp;';
        my $cutlink='&nbsp;';

	my $skip_confirm = 0;
	if ( $folder =~ /^supplemental/
	     || ($url =~ m{( /smppg$
			    |/syllabus$
			    |/aboutme$
			    |/navmaps$
			    |/bulletinboard$
			    |\.html$
			    |^/adm/wrapper/ext)}x)) {
	    $skip_confirm = 1;
	}

	if (!$nocopy) {
	    $copylink=(<<ENDCOPY);
<a href='javascript:markcopy("$esc_path","$index","$renametitle","$container","$symb","$folder");' class="LC_docs_copy">$lt{'cp'}</a>
ENDCOPY
        }
	if (!$nocut) {
	    $cutlink=(<<ENDCUT);
<a href='javascript:cutres("$esc_path","$index","$renametitle","$container","$symb","$folder",$skip_confirm);' class="LC_docs_cut">$lt{'ct'}</a>
ENDCUT
        }
	$form_start = (<<END);
   <form  action="/adm/coursedocs" method="post">
   <input type="hidden" name="${type}path" value="$path" />
   <input type="hidden" name="${type}symb" value="$symb" />
   <input type="hidden" name="setparms" value="$orderidx" />
   <input type="hidden" name="changeparms" value="0" />
END
        $form_end = '</form>';
	$line.=(<<END);
<td>
<div class="LC_docs_entry_move">
  <a href='/adm/coursedocs?cmd=up_$index&amp;${type}path=$esc_path&amp;${type}symb=$symb$cpinfo'>
    <img src="${iconpath}move_up.gif" alt='$lt{'up'}' class="LC_icon" />
  </a>
</div>
<div class="LC_docs_entry_move">
  <a href='/adm/coursedocs?cmd=down_$index&amp;${type}path=$esc_path&amp;${type}symb=$symb$cpinfo'>
    <img src="${iconpath}move_down.gif" alt='$lt{'dw'}' class="LC_icon" />
  </a>
</div>
</td>
<td>
   $form_start
   $selectbox
   $form_end
</td>
<td class="LC_docs_entry_commands">
   <a href='javascript:removeres("$esc_path","$index","$renametitle","$container","$symb",$skip_confirm);' class="LC_docs_remove">$lt{'rm'}</a>
$cutlink
   <a href='javascript:changename("$esc_path","$index","$renametitle","$container","$symb");' class="LC_docs_rename">$lt{'rn'}</a>
$copylink
</td>
END

    }
# Figure out what kind of a resource this is
    my ($extension)=($url=~/\.(\w+)$/);
    my $uploaded=($url=~/^\/*uploaded\//);
    my $icon=&Apache::loncommon::icon($url);
    my $isfolder=0;
    my $ispage=0;
    my $folderarg;
    my $pagearg;
    my $pagefile;
    if ($uploaded) {
	if ($extension eq 'sequence') {
	    $icon=$iconpath.'/navmap.folder.closed.gif';
	    $url=~/\Q$coursenum\E\/([\/\w]+)\.sequence$/;
	    $url='/adm/coursedocs?';
	    $folderarg=$1;
	    $isfolder=1;
        } elsif ($extension eq 'page') {
            $icon=$iconpath.'/page.gif';
            $url=~/\Q$coursenum\E\/([\/\w]+)\.page$/;
            $pagearg=$1;
            $url='/adm/coursedocs?';
            $ispage=1;
	} else {
	    &Apache::lonnet::allowuploaded('/adm/coursedoc',$url);
	}
    }

    my $orig_url = $url;
    $orig_url=~s{http(&colon;|:)//https(&colon;|:)//}{https$2//};
    my $external = ($url=~s{^http(|s)(&colon;|:)//}{/adm/wrapper/ext/});
    if ((!$isfolder) && ($residx) && ($folder!~/supplemental/) && (!$ispage)) {
	my $symb=&Apache::lonnet::symbclean(
          &Apache::lonnet::declutter('uploaded/'.
           $env{'course.'.$env{'request.course.id'}.'.domain'}.'/'.
           $env{'course.'.$env{'request.course.id'}.'.num'}.'/'.$folder.
           '.sequence').
           '___'.$residx.'___'.
	   &Apache::lonnet::declutter($url));
	(undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
	$url=&Apache::lonnet::clutter($url);
	if ($url=~/^\/*uploaded\//) {
	    $url=~/\.(\w+)$/;
	    my $embstyle=&Apache::loncommon::fileembstyle($1);
	    if (($embstyle eq 'img') || ($embstyle eq 'emb')) {
		$url='/adm/wrapper'.$url;
	    } elsif ($embstyle eq 'ssi') {
		#do nothing with these
	    } elsif ($url!~/\.(sequence|page)$/) {
		$url='/adm/coursedocs/showdoc'.$url;
	    }
	} elsif ($url=~m|^/ext/|) {
	    $url='/adm/wrapper'.$url;
	    $external = 1;
	}
        if (&Apache::lonnet::symbverify($symb,$url)) {
	    $url.=(($url=~/\?/)?'&':'?').'symb='.&escape($symb);
        } else {
            $url='';
        }
	if ($container eq 'page') {
	    my $symb=$env{'form.pagesymb'};

	    $url=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($symb))[2]);
	    $url.=(($url=~/\?/)?'&':'?').'symb='.&escape($symb);
	}
    }
    my ($parameterset,$rand_order_text) = ('&nbsp;', '&nbsp;');
    if ($isfolder || $extension eq 'sequence') {
	my $foldername=&escape($foldertitle);
	my $folderpath=$env{'form.folderpath'};
	if ($folderpath) { $folderpath.='&' };
# Append randompick number, hidden, and encrypted with ":" to foldername,
# so it gets transferred between levels
	$folderpath.=$folderarg.'&'.$foldername.':'.(&LONCAPA::map::getparameter($orderidx,
                                              'parameter_randompick'))[0]
                                               .':'.((&LONCAPA::map::getparameter($orderidx,
                                              'parameter_hiddenresource'))[0]=~/^yes$/i)
                                               .':'.((&LONCAPA::map::getparameter($orderidx,
                                              'parameter_encrypturl'))[0]=~/^yes$/i)
                                               .':'.((&LONCAPA::map::getparameter($orderidx,
                                              'parameter_randomorder'))[0]=~/^yes$/i);
	$url.='folderpath='.&escape($folderpath).$cpinfo;
	$parameterset='<label>'.&mt('Randomly Pick: ').
	    '<input type="text" size="4" onchange="this.form.changeparms.value='."'randompick'".';this.form.submit()" name="randompick_'.$orderidx.'" value="'.
	    (&LONCAPA::map::getparameter($orderidx,
                                              'parameter_randompick'))[0].
                                              '" />'.
'<a href="javascript:void(0)">'.&mt('Save').'</a></label>';
    	my $ro_set=
	    ((&LONCAPA::map::getparameter($orderidx,'parameter_randomorder'))[0]=~/^yes$/i?' checked="checked"':'');
	$rand_order_text ='
<span class="LC_nobreak"><label><input type="checkbox" name="randomorder_'.$orderidx.'" onclick="this.form.changeparms.value=\'randomorder\';this.form.submit()" '.$ro_set.' /> '.&mt('Random Order').' </label></span>';
    }
    if ($ispage) {
        my $pagename=&escape($pagetitle);
        my $pagepath;
        my $folderpath=$env{'form.folderpath'};
        if ($folderpath) { $pagepath = $folderpath.'&' };
        $pagepath.=$pagearg.'&'.$pagename;
	my $symb=$env{'form.pagesymb'};
	if (!$symb) {
	    my $path='uploaded/'.
		$env{'course.'.$env{'request.course.id'}.'.domain'}.'/'.
		$env{'course.'.$env{'request.course.id'}.'.num'}.'/';
	    $symb=&Apache::lonnet::encode_symb($path.$folder.'.sequence',
					       $residx,
					       $path.$pagearg.'.page');
	}
	$url.='pagepath='.&escape($pagepath).
	    '&amp;pagesymb='.&escape($symb).$cpinfo;
    }
    if (($external) && ($allowed)) {
	my $form = ($folder =~ /^default/)? 'newext' : 'supnewext';
	$external = '&nbsp;<a class="LC_docs_ext_edit" href="javascript:edittext(\''.$form.'\',\''.$residx.'\',\''.&escape($title).'\',\''.&escape($orig_url).'\');" >'.&mt('Edit').'</a>';
    } else {
	undef($external);
    }
    my $reinit;
    if ($crstype eq 'Community') {
        $reinit = &mt('(re-initialize community to access)');
    } else {
        $reinit = &mt('(re-initialize course to access)');
    }  
    $line.='
  <td>
    '.($url?'<a href="'.$url.'">':'').'<img src="'.$icon.'" alt="" class="LC_icon" />'.($url?'</a>':'').'
  </td>
  <td>
    '.($url?"<a href=\"$url\">":'').$title.($url?'</a>':' <span class="LC_docs_reinit_warn">'.$reinit.'</span>').$external."
  </td>";
    if (($allowed) && ($folder!~/^supplemental/)) {
 	my %lt=&Apache::lonlocal::texthash(
 			      'hd' => 'Hidden',
 			      'ec' => 'URL hidden');
	my $enctext=
	    ((&LONCAPA::map::getparameter($orderidx,'parameter_encrypturl'))[0]=~/^yes$/i?' checked="checked"':'');
	my $hidtext=
	    ((&LONCAPA::map::getparameter($orderidx,'parameter_hiddenresource'))[0]=~/^yes$/i?' checked="checked"':'');
	$line.=(<<ENDPARMS);
  <td class="LC_docs_entry_parameter">
    $form_start
    <label><input type="checkbox" name="hiddenresource_$orderidx" onclick="this.form.changeparms.value='hiddenresource';this.form.submit()" $hidtext /> $lt{'hd'}</label>
    $form_end
  </td>
  <td class="LC_docs_entry_parameter">
    $form_start
    <label><input type="checkbox" name="encrypturl_$orderidx" onclick="this.form.changeparms.value='encrypturl';this.form.submit()" $enctext /> $lt{'ec'}</label>
    $form_end
  </td>
  <td class="LC_docs_entry_parameter">$form_start $rand_order_text $form_end</td>
  <td class="LC_docs_entry_parameter">$form_start $parameterset $form_end</td>
ENDPARMS
    }
    $line.=&Apache::loncommon::end_data_table_row();
    return $line;
}

=pod

=item tiehash()

tie the hash

=cut

sub tiehash {
    my ($mode)=@_;
    $hashtied=0;
    if ($env{'request.course.fn'}) {
	if ($mode eq 'write') {
	    if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.".db",
		    &GDBM_WRCREAT(),0640)) {
                $hashtied=2;
	    }
	} else {
	    if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.".db",
		    &GDBM_READER(),0640)) {
                $hashtied=1;
	    }
	}
    }
}

sub untiehash {
    if ($hashtied) { untie %hash; }
    $hashtied=0;
    return OK;
}




sub checkonthis {
    my ($r,$url,$level,$title)=@_;
    $url=&unescape($url);
    $alreadyseen{$url}=1;
    $r->rflush();
    if (($url) && ($url!~/^\/uploaded\//) && ($url!~/\*$/)) {
       $r->print("\n<br />");
       if ($level==0) {
           $r->print("<br />");
       }
       for (my $i=0;$i<=$level*5;$i++) {
           $r->print('&nbsp;');
       }
       $r->print('<a href="'.$url.'" target="cat">'.
		 ($title?$title:$url).'</a> ');
       if ($url=~/^\/res\//) {
	  my $result=&Apache::lonnet::repcopy(
                              &Apache::lonnet::filelocation('',$url));
          if ($result eq 'ok') {
             $r->print('<span class="LC_success">'.&mt('ok').'</span>');
             $r->rflush();
             &Apache::lonnet::countacc($url);
             $url=~/\.(\w+)$/;
             if (&Apache::loncommon::fileembstyle($1) eq 'ssi') {
		 $r->print('<br />');
                 $r->rflush();
                 for (my $i=0;$i<=$level*5;$i++) {
                     $r->print('&nbsp;');
                 }
                 $r->print('- '.&mt('Rendering:').' ');
		 my ($errorcount,$warningcount)=split(/:/,
	       &Apache::lonnet::ssi_body($url,
			       ('grade_target'=>'web',
				'return_only_error_and_warning_counts' => 1)));
                 if (($errorcount) ||
                     ($warningcount)) {
		     if ($errorcount) {
                        $r->print('<img src="/adm/lonMisc/bomb.gif" alt="'.&mt('bomb').'" /><span class="LC_error">'.
                          &mt('[quant,_1,error]',$errorcount).'</span>');
                     }
		     if ($warningcount) {
                        $r->print('<span class="LC_warning">'.
                          &mt('[quant,_1,warning]',$warningcount).'</span>');
                     }
                 } else {
                     $r->print('<span class="LC_success">'.&mt('ok').'</span>');
                 }
                 $r->rflush();
             }
	     my $dependencies=
                &Apache::lonnet::metadata($url,'dependencies');
             foreach my $dep (split(/\,/,$dependencies)) {
		 if (($dep=~/^\/res\//) && (!$alreadyseen{$dep})) {
                    &checkonthis($r,$dep,$level+1);
                 }
             }
          } elsif ($result eq 'unavailable') {
             $r->print('<span class="LC_error">'.&mt('connection down').'</span>');
          } elsif ($result eq 'not_found') {
	      unless ($url=~/\$/) {
		  $r->print('<span class="LC_error">'.&mt('not found').'</b></span>');
	      } else {
		  $r->print('<span class="LC_error">'.&mt('unable to verify variable URL').'</span>');
	      }
          } else {
             $r->print('<span class="LC_error">'.&mt('access denied').'</span>');
          }
       }
    }
}



=pod

=item list_symbs()

List Symbs

=cut

sub list_symbs {
    my ($r) = @_;

    my $crstype = &Apache::loncommon::course_type();
    $r->print(&Apache::loncommon::start_page('Symb List'));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Symb List'));
    &startContentScreen($r,'tools');
    my $navmap = Apache::lonnavmaps::navmap->new();
    if (!defined($navmap)) {
        $r->print('<h2>'.&mt('Retrieval of List Failed').'</h2>'.
                  '<div class="LC_error">'.
                  &mt('Unable to retrieve information about course contents').
                  '</div>');
        &Apache::lonnet::logthis('Symb list failed - could not create navmap object in '.lc($crstype).':'.$env{'request.course.id'});
    } else {
        $r->print("<pre>\n");
        foreach my $res ($navmap->retrieveResources()) {
            $r->print($res->compTitle()."\t".$res->symb()."\n");
        }
        $r->print("\n</pre>\n");
    }
}


sub verifycontent {
    my ($r) = @_;
    my $crstype = &Apache::loncommon::course_type();
   $r->print(&Apache::loncommon::start_page('Verify '.$crstype.' Documents'));
   $r->print(&Apache::lonhtmlcommon::breadcrumbs('Verify '.$crstype.' Documents'));
   &startContentScreen($r,'tools');
   $hashtied=0;
   undef %alreadyseen;
   %alreadyseen=();
   &tiehash();
   foreach my $key (keys(%hash)) {
       if ($hash{$key}=~/\.(page|sequence)$/) {
	   if (($key=~/^src_/) && ($alreadyseen{&unescape($hash{$key})})) {
	       $r->print('<hr /><span class="LC_error">'.
			 &mt('The following sequence or page is included more than once in your '.$crstype.':').' '.
			 &unescape($hash{$key}).'</span><br />'.
			 &mt('Note that grading records for problems included in this sequence or folder will overlap.').'<hr />');
	   }
       }
       if (($key=~/^src\_(.+)$/) && (!$alreadyseen{&unescape($hash{$key})})) {
           &checkonthis($r,$hash{$key},0,$hash{'title_'.$1});
       }
   }
   &untiehash();
   $r->print('<p class="LC_success">'.&mt('Done').'</p>');
}


sub devalidateversioncache {
    my $src=shift;
    &Apache::lonnet::devalidate_cache_new('courseresversion',$env{'request.course.id'}.'_'.
					  &Apache::lonnet::clutter($src));
}

sub checkversions {
    my ($r) = @_;
    my $crstype = &Apache::loncommon::course_type();
    $r->print(&Apache::loncommon::start_page("Check $crstype Document Versions"));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs("Check $crstype Document Versions"));
    &startContentScreen($r,'tools');

    my $header='';
    my $startsel='';
    my $monthsel='';
    my $weeksel='';
    my $daysel='';
    my $allsel='';
    my %changes=();
    my $starttime=0;
    my $haschanged=0;
    my %setversions=&Apache::lonnet::dump('resourceversions',
			  $env{'course.'.$env{'request.course.id'}.'.domain'},
			  $env{'course.'.$env{'request.course.id'}.'.num'});

    $hashtied=0;
    &tiehash();
    my %newsetversions=();
    if ($env{'form.setmostrecent'}) {
	$haschanged=1;
	foreach my $key (keys(%hash)) {
	    if ($key=~/^ids\_(\/res\/.+)$/) {
		$newsetversions{$1}='mostrecent';
                &devalidateversioncache($1);
	    }
	}
    } elsif ($env{'form.setcurrent'}) {
	$haschanged=1;
	foreach my $key (keys(%hash)) {
	    if ($key=~/^ids\_(\/res\/.+)$/) {
		my $getvers=&Apache::lonnet::getversion($1);
		if ($getvers>0) {
		    $newsetversions{$1}=$getvers;
		    &devalidateversioncache($1);
		}
	    }
	}
    } elsif ($env{'form.setversions'}) {
	$haschanged=1;
	foreach my $key (keys(%env)) {
	    if ($key=~/^form\.set_version_(.+)$/) {
		my $src=$1;
		if (($env{$key}) && ($env{$key} ne $setversions{$src})) {
		    $newsetversions{$src}=$env{$key};
		    &devalidateversioncache($src);
		}
	    }
	}
    }
    if ($haschanged) {
        if (&Apache::lonnet::put('resourceversions',\%newsetversions,
			  $env{'course.'.$env{'request.course.id'}.'.domain'},
			  $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') {
	    $r->print('<h1>'.&mt('Your Version Settings have been Saved').'</h1>');
	} else {
	    $r->print('<h1><span class="LC_error">'.&mt('An Error Occured while Attempting to Save your Version Settings').'</span></h1>');
	}
	&mark_hash_old();
    }
    &changewarning($r,'');
    if ($env{'form.timerange'} eq 'all') {
# show all documents
	$header=&mt('All Documents in '.$crstype);
	$allsel=1;
	foreach my $key (keys(%hash)) {
	    if ($key=~/^ids\_(\/res\/.+)$/) {
		my $src=$1;
		$changes{$src}=1;
	    }
	}
    } else {
# show documents which changed
	%changes=&Apache::lonnet::dump
	 ('versionupdate',$env{'course.'.$env{'request.course.id'}.'.domain'},
                     $env{'course.'.$env{'request.course.id'}.'.num'});
	my $firstkey=(keys(%changes))[0];
	unless ($firstkey=~/^error\:/) {
	    unless ($env{'form.timerange'}) {
		$env{'form.timerange'}=604800;
	    }
	    my $seltext=&mt('during the last').' '.$env{'form.timerange'}.' '
		.&mt('seconds');
	    if ($env{'form.timerange'}==-1) {
		$seltext='since start of course';
		$startsel='selected';
		$env{'form.timerange'}=time;
	    }
	    $starttime=time-$env{'form.timerange'};
	    if ($env{'form.timerange'}==2592000) {
		$seltext=&mt('during the last month').' ('.&Apache::lonlocal::locallocaltime($starttime).')';
		$monthsel='selected';
	    } elsif ($env{'form.timerange'}==604800) {
		$seltext=&mt('during the last week').' ('.&Apache::lonlocal::locallocaltime($starttime).')';
		$weeksel='selected';
	    } elsif ($env{'form.timerange'}==86400) {
		$seltext=&mt('since yesterday').' ('.&Apache::lonlocal::locallocaltime($starttime).')';
		$daysel='selected';
	    }
	    $header=&mt('Content changed').' '.$seltext;
	} else {
	    $header=&mt('No content modifications yet.');
	}
    }
    %setversions=&Apache::lonnet::dump('resourceversions',
			  $env{'course.'.$env{'request.course.id'}.'.domain'},
			  $env{'course.'.$env{'request.course.id'}.'.num'});
    my %lt=&Apache::lonlocal::texthash
	      ('st' => 'Version changes since start of '.$crstype,
	       'lm' => 'Version changes since last Month',
	       'lw' => 'Version changes since last Week',
	       'sy' => 'Version changes since Yesterday',
               'al' => 'All Resources (possibly large output)',
	       'sd' => 'Display',
	       'fi' => 'File',
	       'md' => 'Modification Date',
               'mr' => 'Most recently published Version',
	       've' => 'Version used in '.$crstype,
               'vu' => 'Set Version to be used in '.$crstype,
'sv' => 'Set Versions to be used in '.$crstype.' according to Selections below',
'sm' => 'Keep all Resources up-to-date with most recent Versions (default)',
'sc' => 'Set all Resource Versions to current Version (Fix Versions)',
	       'di' => 'Differences');
    $r->print(<<ENDHEADERS);
<form action="/adm/coursedocs" method="post">
<input type="hidden" name="versions" value="1" />
<input type="submit" name="setmostrecent" value="$lt{'sm'}" />
<input type="submit" name="setcurrent" value="$lt{'sc'}" /><hr />
<select name="timerange">
<option value='all' $allsel>$lt{'al'}</option>
<option value="-1" $startsel>$lt{'st'}</option>
<option value="2592000" $monthsel>$lt{'lm'}</option>
<option value="604800" $weeksel>$lt{'lw'}</option>
<option value="86400" $daysel>$lt{'sy'}</option>
</select>
<input type="submit" name="display" value="$lt{'sd'}" />
<h3>$header</h3>
<input type="submit" name="setversions" value="$lt{'sv'}" />
<table border="0">
ENDHEADERS
    foreach my $key (sort(keys(%changes))) {
	if ($changes{$key}>$starttime) {
	    my ($root,$extension)=($key=~/^(.*)\.(\w+)$/);
	    my $currentversion=&Apache::lonnet::getversion($key);
	    if ($currentversion<0) {
		$currentversion=&mt('Could not be determined.');
	    }
	    my $linkurl=&Apache::lonnet::clutter($key);
	    $r->print(
		      '<tr><td colspan="5"><br /><br /><font size="+1"><b>'.
		      &Apache::lonnet::gettitle($linkurl).
                      '</b></font></td></tr>'.
                      '<tr><td>&nbsp;&nbsp;&nbsp;</td>'.
                      '<td colspan="4">'.
                      '<a href="'.$linkurl.'" target="cat">'.$linkurl.
		      '</a></td></tr>'.
                      '<tr><td></td>'.
                      '<td title="'.$lt{'md'}.'">'.
		      &Apache::lonlocal::locallocaltime(
                           &Apache::lonnet::metadata($root.'.'.$extension,
                                                     'lastrevisiondate')
                                                        ).
                      '</td>'.
                      '<td title="'.$lt{'mr'}.'"><span class="LC_nobreak">Most Recent: '.
                      '<font size="+1">'.$currentversion.'</font>'.
                      '</span></td>'.
                      '<td title="'.$lt{'ve'}.'"><span class="LC_nobreak">In '.$crstype.': '.
                      '<font size="+1">');
# Used in course
	    my $usedversion=$hash{'version_'.$linkurl};
	    if (($usedversion) && ($usedversion ne 'mostrecent')) {
		$r->print($usedversion);
	    } else {
		$r->print($currentversion);
	    }
	    $r->print('</font></span></td><td title="'.$lt{'vu'}.'">'.
                      '<span class="LC_nobreak">Use: ');
# Set version
	    $r->print(&Apache::loncommon::select_form($setversions{$linkurl},
						      'set_version_'.$linkurl,
						      {'select_form_order' =>
						       ['',1..$currentversion,'mostrecent'],
						       '' => '',
						       'mostrecent' => &mt('most recent'),
						       map {$_,$_} (1..$currentversion)}));
	    $r->print('</span></td></tr><tr><td></td>');
	    my $lastold=1;
	    for (my $prevvers=1;$prevvers<$currentversion;$prevvers++) {
		my $url=$root.'.'.$prevvers.'.'.$extension;
		if (&Apache::lonnet::metadata($url,'lastrevisiondate')<
		    $starttime) {
		    $lastold=$prevvers;
		}
	    }
            #
            # Code to figure out how many version entries should go in
            # each of the four columns
            my $entries_per_col = 0;
            my $num_entries = ($currentversion-$lastold);
            if ($num_entries % 4 == 0) {
                $entries_per_col = $num_entries/4;
            } else {
                $entries_per_col = $num_entries/4 + 1;
            }
            my $entries_count = 0;
            $r->print('<td valign="top"><font size="-2">');
            my $cols_output = 1;
            for (my $prevvers=$lastold;$prevvers<$currentversion;$prevvers++) {
		my $url=$root.'.'.$prevvers.'.'.$extension;
		$r->print('<span class="LC_nobreak"><a href="'.&Apache::lonnet::clutter($url).
			  '">'.&mt('Version').' '.$prevvers.'</a> ('.
			  &Apache::lonlocal::locallocaltime(
                                &Apache::lonnet::metadata($url,
                                                          'lastrevisiondate')
                                                            ).
			  ')');
		if (&Apache::loncommon::fileembstyle($extension) eq 'ssi') {
                    $r->print(' <a href="/adm/diff?filename='.
			      &Apache::lonnet::clutter($root.'.'.$extension).
			      '&versionone='.$prevvers.
			      '">'.&mt('Diffs').'</a>');
		}
		$r->print('</span><br />');
                if (++$entries_count % $entries_per_col == 0) {
                    $r->print('</font></td>');
                    if ($cols_output != 4) {
                        $r->print('<td valign="top"><font size="-2">');
                        $cols_output++;
                    }
                }
	    }
            while($cols_output++ < 4) {
                $r->print('</font></td><td><font>')
            }
	    $r->print('</font></td></tr>'."\n");
	}
    }
    $r->print('</table></form>');
    $r->print('<p class="LC_success">'.&mt('Done').'</p>');

    &untiehash();
}

sub mark_hash_old {
    my $retie_hash=0;
    if ($hashtied) {
	$retie_hash=1;
	&untiehash();
    }
    &tiehash('write');
    $hash{'old'}=1;
    &untiehash();
    if ($retie_hash) { &tiehash(); }
}

sub is_hash_old {
    my $untie_hash=0;
    if (!$hashtied) {
	$untie_hash=1;
	&tiehash();
    }
    my $return=$hash{'old'};
    if ($untie_hash) { &untiehash(); }
    return $return;
}

sub changewarning {
    my ($r,$postexec,$message,$url)=@_;
    if (!&is_hash_old()) { return; }
    my $pathvar='folderpath';
    my $path=&escape($env{'form.folderpath'});
    if (!defined($url)) {
	if (defined($env{'form.pagepath'})) {
	    $pathvar='pagepath';
	    $path=&escape($env{'form.pagepath'});
	    $path.='&amp;pagesymb='.&escape($env{'form.pagesymb'});
	}
	$url='/adm/coursedocs?'.$pathvar.'='.$path;
    }
    my $course_type = &Apache::loncommon::course_type();
    if (!defined($message)) {
	$message='Changes will become active for your current session after [_1], or the next time you log in.';
    }
    $r->print("\n\n".
'<script type="text/javascript">'."\n".
'// <![CDATA['."\n".
'function reinit(tf) { tf.submit();'.$postexec.' }'."\n".
'// ]]>'."\n".
'</script>'."\n".
'<form name="reinitform" method="post" action="/adm/roles" target="loncapaclient">'.
'<input type="hidden" name="orgurl" value="'.$url.
'" /><input type="hidden" name="selectrole" value="1" /><p class="LC_warning">'.
&mt($message,' <input type="hidden" name="'.
    $env{'request.role'}.'" value="1" /><input type="button" value="'.
    &mt('re-initializing '.$course_type).'" onclick="reinit(this.form)" />').
$help{'Caching'}.'</p></form>'."\n\n");
}


sub init_breadcrumbs {
    my ($form,$text)=@_;
    &Apache::lonhtmlcommon::clear_breadcrumbs();
    &Apache::lonhtmlcommon::add_breadcrumb({href=>"/adm/coursedocs",
					    text=>&Apache::loncommon::course_type().' Editor',
					    faq=>273,
					    bug=>'Instructor Interface',
                                            help => 'Docs_Adding_Course_Doc'});
    &Apache::lonhtmlcommon::add_breadcrumb({href=>"/adm/coursedocs?".$form.'=1',
					    text=>$text,
					    faq=>273,
					    bug=>'Instructor Interface'});
}

# subroutine to list form elements
sub create_list_elements {
   my @formarr = @_;
   my $list = '';
   for my $button (@formarr){
        for my $picture(keys %$button) {
            $list .= &Apache::lonhtmlcommon::htmltag('li', $picture.' '.$button->{$picture}, {class => 'LC_menubuttons_inline_text'});
        }
   }
   return $list;
}

# subroutine to create ul from list elements
sub create_form_ul {
   my $list = shift;
   my $ul = &Apache::lonhtmlcommon::htmltag('ul',$list, {class => 'LC_ListStyleNormal'});
   return $ul;
}

#
# Start tabs
#

sub startContentScreen {
    my ($r,$mode)=@_;
    $r->print('<ul class="LC_TabContentBigger" id="mainnav">');
    $r->print('<li'.(($mode eq 'navmaps')?' class="active"':'').'><a href="/adm/navmaps"><b>&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Overview').'&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');

    my $active = '';
# does this user have privileges to modify docs?
    my $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});

    my $onclick;
    my $href;

    if ($allowed) {
        $r->print('<li '.(($mode eq 'docs')?' class="active"':'').
               '><a href="/adm/coursedocs?forcestandard=1"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Editor').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');
    }
    $r->print('<li'.(($mode eq 'coursesearch')?' class="active"':'').'><a href="/adm/searchcourse"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Search').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');
    $r->print('<li'.(($mode eq 'courseindex')?' class="active"':'').'><a href="/adm/indexcourse"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Index').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');
    $r->print('<li '.(($mode eq 'supdocs')?' class="active"':'').
           '><a href="/adm/coursedocs?forcesupplement=1"><b>'.&mt('Supplemental Documents').'</b></a></li>');
    $r->print('</ul>');
    $r->print('<div class="LC_Box" style="clear:both;margin:0;">'
             .'<div id="maincoursedoc" style="margin:0 0;padding:0 0;">');
    $r->print('<div class="LC_ContentBox" id="mainCourseDocuments" style="display: block;">');
}

#
# End tabs
#

sub endContentScreen {
   my ($r)=@_;
   $r->print('</div></div></div>');
}

sub supplemental_base {
    return 'supplemental&'.&escape(&mt('Supplemental '.&Apache::loncommon::course_type().' Documents'));
}

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

#
# --------------------------------------------- Initialize help topics for this
    foreach my $topic ('Adding_Course_Doc','Main_Course_Documents',
	               'Adding_External_Resource','Navigate_Content',
	               'Adding_Folders','Docs_Overview', 'Load_Map',
	               'Supplemental','Score_Upload_Form','Adding_Pages',
	               'Importing_LON-CAPA_Resource','Uploading_From_Harddrive',
	               'Check_Resource_Versions','Verify_Content') {
	$help{$topic}=&Apache::loncommon::help_open_topic('Docs_'.$topic);
    }
    # Composite help files
    $help{'Syllabus'} = &Apache::loncommon::help_open_topic(
		    'Docs_About_Syllabus,Docs_Editing_Templated_Pages');
    $help{'Simple Page'} = &Apache::loncommon::help_open_topic(
		    'Docs_About_Simple_Page,Docs_Editing_Templated_Pages');
    $help{'Simple Problem'} = &Apache::loncommon::help_open_topic(
		    'Option_Response_Simple');
    $help{'Bulletin Board'} = &Apache::loncommon::help_open_topic(
		    'Docs_About_Bulletin_Board,Docs_Editing_Templated_Pages');
    $help{'My Personal Information Page'} = &Apache::loncommon::help_open_topic(
		  'Docs_About_My_Personal_Info,Docs_Editing_Templated_Pages');
    $help{'Group Portfolio'} = &Apache::loncommon::help_open_topic('Docs_About_Group_Files');
    $help{'Caching'} = &Apache::loncommon::help_open_topic('Caching');

# does this user have privileges to modify docs
    my $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
  if ($allowed && $env{'form.verify'}) {
      &init_breadcrumbs('verify','Verify Content');
      &verifycontent($r);
  } elsif ($allowed && $env{'form.listsymbs'}) {
      &init_breadcrumbs('listsymbs','List Symbs');
      &list_symbs($r);
  } elsif ($allowed && $env{'form.docslog'}) {
      &init_breadcrumbs('docslog','Show Log');
      &docs_change_log($r);
  } elsif ($allowed && $env{'form.versions'}) {
      &init_breadcrumbs('versions','Check/Set Resource Versions');
      &checkversions($r);
  } elsif ($allowed && $env{'form.dumpcourse'}) {
      &init_breadcrumbs('dumpcourse','Dump '.&Apache::loncommon::course_type().' Documents to Construction Space');
      &dumpcourse($r);
  } elsif ($allowed && $env{'form.exportcourse'}) {
      &init_breadcrumbs('exportcourse','IMS Export');
      &exportcourse($r);
  } else {
#
# Done catching special calls
# The whole rest is for course and supplemental documents
# Get the parameters that may be needed
#
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                            ['folderpath','pagepath',
                                             'pagesymb','forcesupplement','forcestandard']);

# standard=1: this is a "new-style" course with an uploaded map as top level
# standard=2: this is a "old-style" course, and there is nothing we can do

    my $standard=($env{'request.course.uri'}=~/^\/uploaded\//);

# Decide whether this should display supplemental or main content
# supplementalflag=1: show supplemental documents
# supplementalflag=0: show standard documents


    my $supplementalflag=($env{'form.folderpath'}=~/^supplemental/);
    if (($env{'form.folderpath'}=~/^default/) || $env{'form.folderpath'} eq "" || ($env{'form.pagepath'})) {
       $supplementalflag=0;
    }
    if ($env{'form.forcesupplement'}) { $supplementalflag=1; }
    if ($env{'form.forcestandard'})   { $supplementalflag=0; }
    unless ($allowed) { $supplementalflag=1; }
    unless ($standard) { $supplementalflag=1; }

    my $script='';
    my $showdoc=0;
    my $containertag;
    my $uploadtag;

# Where do we store these for when we come back?
    my $stored_folderpath='docs_folderpath';
    if ($supplementalflag) {
       $stored_folderpath='docs_sup_folderpath';
    }
       
# No folderpath, no pagepath, see if we have something stored
    if ((!$env{'form.folderpath'}) && (!$env{'form.pagepath'})) {
        &Apache::loncommon::restore_course_settings($stored_folderpath,
                                              {'folderpath' => 'scalar'});
    }
   
# If we are not allowed to make changes, all we can see are supplemental docs
    if (!$allowed) {
        $env{'form.pagepath'}='';
        unless ($env{'form.folderpath'} =~ /^supplemental/) {
            $env{'form.folderpath'} = &supplemental_base();
        }
    }
# If we still not have a folderpath, see if we can resurrect at pagepath
    if (!$env{'form.folderpath'} && $allowed) {
        &Apache::loncommon::restore_course_settings($stored_folderpath,
                                              {'pagepath' => 'scalar'});
    }
# Make the zeroth entry in supplemental docs page paths, so we can get to top level
    if ($env{'form.folderpath'} =~ /^supplemental_\d+/) {
        $env{'form.folderpath'} = &supplemental_base()
                                  .'&'.
                                  $env{'form.folderpath'};
    }
# If after all of this, we still don't have any paths, make them
    unless (($env{'form.pagepath'}) || ($env{'form.folderpath'})) {
       if ($supplementalflag) {
          $env{'form.folderpath'}=&supplemental_base();
       } else {
          $env{'form.folderpath'}='default';
       }
    } 

# Store this
    &Apache::loncommon::store_course_settings($stored_folderpath,
                                                {'pagepath' => 'scalar',
                                                 'folderpath' => 'scalar'});

    if ($env{'form.folderpath'}) {
	my (@folderpath)=split('&',$env{'form.folderpath'});
	$env{'form.foldername'}=&unescape(pop(@folderpath));
	$env{'form.folder'}=pop(@folderpath);
    }
    if ($env{'form.pagepath'}) {
        my (@pagepath)=split('&',$env{'form.pagepath'});
        $env{'form.pagename'}=&unescape(pop(@pagepath));
        $env{'form.folder'}=pop(@pagepath);
        $containertag = '<input type="hidden" name="pagepath" value="" />'.
	                '<input type="hidden" name="pagesymb" value="" />';
        $uploadtag = 
            '<input type="hidden" name="pagepath" value="'.&HTML::Entities::encode($env{'form.pagepath'},'<>&"').'" />'.
	    '<input type="hidden" name="pagesymb" value="'.&HTML::Entities::encode($env{'form.pagesymb'},'<>&"').'" />'.
            '<input type="hidden" name="folderpath" value="" />';
    } else {
        my $folderpath=$env{'form.folderpath'};
        if (!$folderpath) {
            if ($env{'form.folder'} eq '' ||
                $env{'form.folder'} eq 'supplemental') {
                $folderpath='default&'.
                    &escape(&mt('Main '.$crstype.' Documents'));
            }
        }
        $containertag = '<input type="hidden" name="folderpath" value="" />';
        $uploadtag = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($folderpath,'<>&"').'" />';
    }
    if ($r->uri=~/^\/adm\/coursedocs\/showdoc\/(.*)$/) {
       $showdoc='/'.$1;
    }
    if ($showdoc) { # got called in sequence from course
	$allowed=0; 
    } else {
       if ($allowed) {
         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['cmd']);
         $script=&Apache::lonratedt::editscript('simple');
       }
    }

# get course data
    my $coursenum=$env{'course.'.$env{'request.course.id'}.'.num'};
    my $coursedom=$env{'course.'.$env{'request.course.id'}.'.domain'};

# get personal data
    my $uname=$env{'user.name'};
    my $udom=$env{'user.domain'};
    my $plainname=&escape(&Apache::loncommon::plainname($uname,$udom));

# graphics settings

    $iconpath = &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL') . "/");

    if ($allowed) {
	$script .= &editing_js($udom,$uname);
    }
# -------------------------------------------------------------------- Body tag
    $script = '<script type="text/javascript">'."\n"
              .'// <![CDATA['."\n"
              .$script."\n"
              .'// ]]>'."\n"
              .'</script>'."\n";

    # Breadcrumbs
    &Apache::lonhtmlcommon::clear_breadcrumbs();
    unless ($showdoc) {
        &Apache::lonhtmlcommon::add_breadcrumb({
            href=>"/adm/coursedocs",text=>"$crstype Contents"});

        $r->print(&Apache::loncommon::start_page("$crstype Contents", $script,
                                                 {'force_register' => $showdoc,})
                 .&Apache::loncommon::help_open_menu('','',273,'RAT')
                 .&Apache::lonhtmlcommon::breadcrumbs(
                     'Editing the Table of Contents for your '.$crstype,
                     'Docs_Adding_Course_Doc')
        );
    } else {
        $r->print(&Apache::loncommon::start_page("$crstype documents",undef,
                                                {'force_register' => $showdoc,}));
    }

  my %allfiles = ();
  my %codebase = ();
  my ($upload_result,$upload_output,$uploadphase);
  if ($allowed) {
      if (($env{'form.uploaddoc.filename'}) &&
	  ($env{'form.cmd'}=~/^upload_(\w+)/)) {
          my $context = $1; 
          # Process file upload - phase one - upload and parse primary file.
	  undef($hadchanges);
          $uploadphase = &process_file_upload(\$upload_output,$coursenum,$coursedom,
                                              \%allfiles,\%codebase,$context);
	  if ($hadchanges) {
	      &mark_hash_old();
	  }
          $r->print($upload_output);
      } elsif ($env{'form.phase'} eq 'upload_embedded') {
          # Process file upload - phase two - upload embedded objects 
          $uploadphase = 'check_embedded';
          my $primaryurl = &HTML::Entities::encode($env{'form.primaryurl'},'<>&"');   
          my $state = &embedded_form_elems($uploadphase,$primaryurl,
                                           $env{'form.newidx'});
          my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
          my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
          my ($destination,$dir_root) = &embedded_destination();
          my $url_root = '/uploaded/'.$docudom.'/'.$docuname;
          my $actionurl = '/adm/coursedocs';
          my ($result,$flag) = 
              &Apache::loncommon::upload_embedded('coursedoc',$destination,
                  $docuname,$docudom,$dir_root,$url_root,undef,undef,undef,$state,
                  $actionurl);
          $r->print($result.&return_to_editor());
      } elsif ($env{'form.phase'} eq 'check_embedded') {
          # Process file upload - phase three - modify references in HTML file
          $uploadphase = 'modified_orightml';
          my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
          my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
          my ($destination,$dir_root) = &embedded_destination();
          $r->print(&Apache::loncommon::modify_html_refs('coursedoc',$destination,
                                                         $docuname,$docudom,undef,
                                                         $dir_root).
                   &return_to_editor());
      }
  }

  unless ($showdoc || $uploadphase) {  
# -----------------------------------------------------------------------------
       my %lt=&Apache::lonlocal::texthash(
                'uplm' => 'Upload a new main '.lc($crstype).' document',
                'upls' => 'Upload a new supplemental '.lc($crstype).' document',
                'impp' => 'Import a document',
		'copm' => 'All documents out of a published map into this folder',
                'upld' => 'Import Document',
                'srch' => 'Search',
                'impo' => 'Import',
		'wish' => 'Import from Wishlist',
                'selm' => 'Select Map',
                'load' => 'Load Map',
                'reco' => 'Recover Deleted Documents',
                'newf' => 'New Folder',
                'newp' => 'New Composite Page',
                'extr' => 'External Resource',
                'syll' => 'Syllabus',
                'navc' => 'Table of Contents',
                'sipa' => 'Simple Course Page',
                'sipr' => 'Simple Problem',
                'drbx' => 'Drop Box',
                'scuf' => 'External Scores (handgrade, upload, clicker)',
                'bull' => 'Discussion Board',
                'mypi' => 'My Personal Information Page',
                'grpo' => 'Group Portfolio',
                'rost' => 'Course Roster',
				'abou' => 'Personal Information Page for a User',
                'imsf' => 'IMS Import',
                'imsl' => 'Import IMS package',
                'file' =>  'File',
                'title' => 'Title',
                'comment' => 'Comment',
                'parse' => 'Upload embedded images/multimedia files if HTML file',
		'nd' => 'Upload Document',
		'pm' => 'Published Map',
		'sd' => 'Special Document',
		'mo' => 'More Options',
					  );
# -----------------------------------------------------------------------------
	my $fileupload=(<<FIUP);
	$lt{'file'}:<br />
	<input type="file" name="uploaddoc" size="40" />
FIUP

	my $checkbox=(<<CHBO);
	<!-- <label>$lt{'parse'}?
	<input type="checkbox" name="parserflag" />
	</label> -->
	<label>
	<input type="checkbox" name="parserflag" checked="checked" /> $lt{'parse'}
	</label>
CHBO

    my $fileuploada = "<input type='submit' value='".$lt{'upld'}."' /> $help{'Uploading_From_Harddrive'}";
	my $fileuploadform=(<<FUFORM);
	<form name="uploaddocument" action="/adm/coursedocs" method="post" enctype="multipart/form-data">
	<input type="hidden" name="active" value="aa" />
	$fileupload
	<br />
	$lt{'title'}:<br />
	<input type="text" size="80" name="comment" />
	$uploadtag
	<input type="hidden" name="cmd" value="upload_default" />
	<br />
	<span class="LC_nobreak">
	$checkbox
	</span>
FUFORM
    $fileuploadform .= &create_form_ul(&Apache::lonhtmlcommon::htmltag('li',$fileuploada,{class => 'LC_menubuttons_inline_text'})).'</form>';

	my $simpleeditdefaultform=(<<SEDFFORM);
	<form action="/adm/coursedocs" method="post" name="simpleeditdefault">
	<input type="hidden" name="active" value="bb" />
SEDFFORM
	my @simpleeditdefaultforma = ( 
	{ '<img class="LC_noBorder LC_middle" src="/res/adm/pages/src.png" alt="'.$lt{srch}.'"  onclick="javascript:groupsearch()" />' => "$uploadtag<a class='LC_menubuttons_link' href='javascript:groupsearch()'>$lt{'srch'}</a>" },
	{ '<img class="LC_noBorder LC_middle" src="/res/adm/pages/res.png" alt="'.$lt{impo}.'"  onclick="javascript:groupimport();"/>' => "<a class='LC_menubuttons_link' href='javascript:groupimport();'>$lt{'impo'}</a>$help{'Importing_LON-CAPA_Resource'}" },
	{ '<img class="LC_noBorder LC_middle" src="/res/adm/pages/wishlist.png" alt="'.$lt{wish}.'" onclick="javascript:open_Wishlist_Import();" />' => "<a class='LC_menubuttons_link' href='javascript:open_Wishlist_Import();'>$lt{'wish'}</a>" },
	);
	$simpleeditdefaultform .= &create_form_ul(&create_list_elements(@simpleeditdefaultforma));
	$simpleeditdefaultform .=(<<SEDFFORM);
	<hr />
	<p>
	$lt{'copm'}<br />
	<input type="text" size="40" name="importmap" /><br />
	<span class="LC_nobreak"><input type="button"
	onclick="javascript:openbrowser('simpleeditdefault','importmap','sequence,page','')"
	value="$lt{'selm'}" /> <input type="submit" name="loadmap" value="$lt{'load'}" />
	$help{'Load_Map'}</span>
	</p>
	</form>
SEDFFORM

      my $extresourcesform=(<<ERFORM);
      <form action="/adm/coursedocs" method="post" name="newext">
      $uploadtag
      <input type="hidden" name="importdetail" value="" />
      <a class="LC_menubuttons_link" href="javascript:makenewext('newext');">$lt{'extr'}</a>$help{'Adding_External_Resource'}
      </form>
ERFORM


    if ($allowed) {
	&update_paste_buffer($coursenum,$coursedom);
       my %lt=&Apache::lonlocal::texthash(
					 'vc' => 'Verify Content',
					 'cv' => 'Check/Set Resource Versions',
					 'ls' => 'List Symbs',
                                         'sl' => 'Show Log'
					  );

	$r->print(<<HIDDENFORM);
	<form name="renameform" method="post" action="/adm/coursedocs">
   <input type="hidden" name="title" />
   <input type="hidden" name="cmd" />
   <input type="hidden" name="markcopy" />
   <input type="hidden" name="copyfolder" />
   $containertag
 </form>
 <form name="simpleedit" method="post" action="/adm/coursedocs">
   <input type="hidden" name="importdetail" value="" />
   $uploadtag
 </form>
HIDDENFORM
    }

# Generate the tabs
    &startContentScreen($r,($supplementalflag?'supdocs':'docs'));


#

    my $savefolderpath;

    if ($allowed) {
       my $folder=$env{'form.folder'};
       if ($folder eq '' || $supplementalflag) {
           $folder='default';
	   $savefolderpath = $env{'form.folderpath'};
	   $env{'form.folderpath'}='default&'.&escape(&mt('Content'));
           $uploadtag = '<input type="hidden" name="folderpath" value="'.
	       &HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />';
       }
       my $postexec='';
       if ($folder eq 'default') {
           $r->print('<script type="text/javascript">'."\n"
                    .'// <![CDATA['."\n"
                    .'this.window.name="loncapaclient";'."\n"
                    .'// ]]>'."\n"
                    .'</script>'."\n"
       );
       } else {
           #$postexec='self.close();';
       }
       my $folderseq='/uploaded/'.$coursedom.'/'.$coursenum.'/default_'.time.
                     '.sequence';
       my $pageseq = '/uploaded/'.$coursedom.'/'.$coursenum.'/default_'.time.
                     '.page';
	my $container='sequence';
	if ($env{'form.pagepath'}) {
	    $container='page';
	}
	my $readfile='/uploaded/'.$coursedom.'/'.$coursenum.'/'.$folder.'.'.$container;



	my $recoverform=(<<RFORM);
	<form action="/adm/groupsort" method="post" name="recover">
	<a class="LC_menubuttons_link" href="javascript:groupopen('$readfile',1)">$lt{'reco'}</a>
	</form>
RFORM

	my $imspform=(<<IMSPFORM);
	<form action="/adm/imsimportdocs" method="post" name="ims">
	<input type="hidden" name="folder" value="$folder" />
	<a class="LC_menubuttons_link" href="javascript:makeims();">$lt{'imsf'}</a>
	</form>
IMSPFORM

	my $newnavform=(<<NNFORM);
	<form action="/adm/coursedocs" method="post" name="newnav">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" 
	value="$lt{'navc'}=/adm/navmaps" />
	<a class="LC_menubuttons_link" href="javascript:document.newnav.submit()">$lt{'navc'}</a>
	$help{'Navigate_Content'}
	</form>
NNFORM
	my $newsmppageform=(<<NSPFORM);
	<form action="/adm/coursedocs" method="post" name="newsmppg">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makesmppage();"> $lt{'sipa'}</a>
	$help{'Simple Page'}
	</form>
NSPFORM

	my $newsmpproblemform=(<<NSPROBFORM);
	<form action="/adm/coursedocs" method="post" name="newsmpproblem">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makesmpproblem();">$lt{'sipr'}</a>
	$help{'Simple Problem'}
	</form>

NSPROBFORM

	my $newdropboxform=(<<NDBFORM);
	<form action="/adm/coursedocs" method="post" name="newdropbox">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makedropbox();">$lt{'drbx'}</a>
	</form>
NDBFORM

	my $newexuploadform=(<<NEXUFORM);
	<form action="/adm/coursedocs" method="post" name="newexamupload">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makeexamupload();">$lt{'scuf'}</a>
	$help{'Score_Upload_Form'}
	</form>
NEXUFORM

	my $newbulform=(<<NBFORM);
	<form action="/adm/coursedocs" method="post" name="newbul">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makebulboard();" >$lt{'bull'}</a>
	$help{'Bulletin Board'}
	</form>
NBFORM

	my $newaboutmeform=(<<NAMFORM);
	<form action="/adm/coursedocs" method="post" name="newaboutme">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" 
	value="$plainname=/adm/$udom/$uname/aboutme" />
	<a class="LC_menubuttons_link" href="javascript:document.newaboutme.submit()">$lt{'mypi'}</a>
	$help{'My Personal Information Page'}
	</form>
NAMFORM

	my $newaboutsomeoneform=(<<NASOFORM);
	<form action="/adm/coursedocs" method="post" name="newaboutsomeone">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makeabout();">$lt{'abou'}</a>
	</form>
NASOFORM


	my $newrosterform=(<<NROSTFORM);
	<form action="/adm/coursedocs" method="post" name="newroster">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" 
	value="$lt{'rost'}=/adm/viewclasslist" />
	<a class="LC_menubuttons_link" href="javascript:document.newroster.submit()">$lt{'rost'}</a>
	$help{'Course Roster'}
	</form>
NROSTFORM

my $specialdocumentsform;
my @specialdocumentsforma;
my $gradingform;
my @gradingforma;
my $communityform;
my @communityforma;
my $newfolderform;
my $newfolderb;

	my $path = &HTML::Entities::encode($env{'form.folderpath'},'<>&"');
	
	my $newpageform=(<<NPFORM);
	<form action="/adm/coursedocs" method="post" name="newpage">
	<input type="hidden" name="folderpath" value="$path" />
	<input type="hidden" name="importdetail" value="" />
	<input type="hidden" name="active" value="cc" />
	<a class="LC_menubuttons_link" href="javascript:makenewpage(document.newpage,'$pageseq');">$lt{'newp'}</a>
	$help{'Adding_Pages'}
	</form>
NPFORM


	$newfolderform=(<<NFFORM);
	<form action="/adm/coursedocs" method="post" name="newfolder">
	<input type="hidden" name="folderpath" value="$path" />
	<input type="hidden" name="importdetail" value="" />
	<input type="hidden" name="active" value="aa" />
	<a href="javascript:makenewfolder(document.newfolder,'$folderseq');">$lt{'newf'}</a>$help{'Adding_Folders'}
	</form>
NFFORM

	my $newsylform=(<<NSYLFORM);
	<form action="/adm/coursedocs" method="post" name="newsyl">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail" 
	value="$lt{'syll'}=/public/$coursedom/$coursenum/syllabus" />
	<a class="LC_menubuttons_link" href="javascript:document.newsyl.submit()">$lt{'syll'}</a>
	$help{'Syllabus'}

	</form>
NSYLFORM

	my $newgroupfileform=(<<NGFFORM);
	<form action="/adm/coursedocs" method="post" name="newgroupfiles">
	<input type="hidden" name="active" value="cc" />
	$uploadtag
	<input type="hidden" name="importdetail"
	value="$lt{'grpo'}=/adm/$coursedom/$coursenum/aboutme" />
	<a class="LC_menubuttons_link" href="javascript:document.newgroupfiles.submit()">$lt{'grpo'}</a>
	$help{'Group Portfolio'}
	</form>
NGFFORM
	@specialdocumentsforma=(
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/page.png" alt="'.$lt{newp}.'"  onclick="javascript:makenewpage(document.newpage,\''.$pageseq.'\');" />'=>$newpageform},
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/syllabus.png" alt="'.$lt{syll}.'" onclick="document.newsyl.submit()" />'=>$newsylform},
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/navigation.png" alt="'.$lt{navc}.'" onclick="document.newnav.submit()" />'=>$newnavform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/simple.png" alt="'.$lt{sipa}.'" onclick="javascript:makesmppage();" />'=>$newsmppageform},
        );
        $specialdocumentsform = &create_form_ul(&create_list_elements(@specialdocumentsforma));


        my @importdoc = (
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/extres.png" alt="'.$lt{extr}.'" onclick="javascript:makenewext(\'newext\');" />'=>$extresourcesform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/ims.png" alt="'.$lt{imsf}.'" onclick="javascript:makeims();" />'=>$imspform},);
        $fileuploadform =  &create_form_ul(&create_list_elements(@importdoc)) . '<hr/>' . $fileuploadform;

        @gradingforma=(
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/simpprob.png" alt="'.$lt{sipr}.'" onclick="javascript:makesmpproblem();" />'=>$newsmpproblemform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/dropbox.png" alt="'.$lt{drbx}.'" onclick="javascript:makedropbox();" />'=>$newdropboxform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/scoreupfrm.png" alt="'.$lt{scuf}.'" onclick="javascript:makeexamupload();" />'=>$newexuploadform},

        );
        $gradingform = &create_form_ul(&create_list_elements(@gradingforma));

        @communityforma=(
       {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/bchat.png" alt="'.$lt{bull}.'" onclick="javascript:makebulboard();" />'=>$newbulform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/myaboutme.png" alt="'.$lt{mypi}.'" onclick="javascript:makebulboard();" />'=>$newaboutmeform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/aboutme.png" alt="'.$lt{abou}.'" onclick="javascript:makeabout();" />'=>$newaboutsomeoneform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/clst.png" alt="'.$lt{rost}.'" onclick="document.newroster.submit()" />'=>$newrosterform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/groupportfolio.png" alt="'.$lt{grpo}.'" onclick="document.newgroupfiles.submit()" />'=>$newgroupfileform},
        );
        $communityform = &create_form_ul(&create_list_elements(@communityforma));



my @tools = (
#	{'<img class="LC_noBorder LC_middle" align="left" src="/res/adm/pages/extres.png" alt="'.$lt{extr}.'" />'=>$extresourcesform},
#	{'<img class="LC_noBorder LC_middle" align="left" src="/res/adm/pages/ims.png" alt="'.$lt{imsf}.'" />'=>$imspform},
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/recover.png" alt="'.$lt{reco}.'" onclick="javascript:groupopen(\''.$readfile.'\',1)" />'=>$recoverform},
	);

my %orderhash = (
                'aa' => ['Import Documents',$fileuploadform],
                'bb' => ['Published Resources',$simpleeditdefaultform],
                'cc' => ['Grading Resources',$gradingform],
		'ff' => ['Tools', &create_form_ul(&create_list_elements(@tools)).&generate_admin_options(\%help,\%env)],
                );
unless ($env{'form.pagepath'}) {
    $orderhash{'00'} = ['Newfolder',$newfolderform];
    $orderhash{'dd'} = ['Community Resources',$communityform];
    $orderhash{'ee'} = ['Special Documents',$specialdocumentsform];
}

 $hadchanges=0;
       unless ($supplementalflag) {
          my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed,'',$crstype);
          if ($error) {
             $r->print('<p><span class="LC_error">'.$error.'</span></p>');
          }
          if ($hadchanges) {
             &mark_hash_old();
          }

          &changewarning($r,'');
          $r->print(&generate_edit_table('1',\%orderhash));
        }

	}

# Supplemental documents start here

       my $folder=$env{'form.folder'};
       unless ($supplementalflag) {
	   $folder='supplemental';
       }
       if ($folder =~ /^supplemental$/ &&
	   (($env{'form.folderpath'} =~ /^default\&/) || ($env{'form.folderpath'} eq ''))) {
          $env{'form.folderpath'} = &supplemental_base();
       } elsif ($allowed) {
	  $env{'form.folderpath'} = $savefolderpath;
       }
       $env{'form.pagepath'} = '';
       if ($allowed) {
	   my $folderseq=
	       '/uploaded/'.$coursedom.'/'.$coursenum.'/supplemental_'.time.
	       '.sequence';

	   my $path = &HTML::Entities::encode($env{'form.folderpath'},'<>&"');

	my $supupdocformbtn = "<input type='submit' value='".$lt{'upld'}."' />$help{'Uploading_From_Harddrive'}";
	my $supupdocform=(<<SUPDOCFORM);
	<form action="/adm/coursedocs" method="post" name="supuploaddocument" enctype="multipart/form-data">
	<input type="hidden" name="active" value="ee" />	
	$fileupload
	<br />
	<br />
	<span class="LC_nobreak">
	$checkbox
	</span>
	<br /><br />
	$lt{'comment'}:<br />
	<textarea cols="50" rows="4" name="comment"></textarea>
	<br />
	<input type="hidden" name="folderpath" value="$path" />
	<input type="hidden" name="cmd" value="upload_supplemental" />
SUPDOCFORM
	$supupdocform .=  &create_form_ul(&Apache::lonhtmlcommon::htmltag('li',$supupdocformbtn,{class => 'LC_menubuttons_inline_text'}))."</form>";

	my $supnewfolderform=(<<SNFFORM);
	<form action="/adm/coursedocs" method="post" name="supnewfolder">
	<input type="hidden" name="active" value="ee" />
	<input type="hidden" name="folderpath" value="$path" />
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makenewfolder(document.supnewfolder,'$folderseq');">$lt{'newf'}</a> 
	$help{'Adding_Folders'}
	</form>
SNFFORM
	

	my $supnewextform=(<<SNEFORM);
	<form action="/adm/coursedocs" method="post" name="supnewext">
	<input type="hidden" name="active" value="ff" />
	<input type="hidden" name="folderpath" value="$path" />
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makenewext('supnewext');">$lt{'extr'}</a> $help{'Adding_External_Resource'}
	</form>
SNEFORM

	my $supnewsylform=(<<SNSFORM);
	<form action="/adm/coursedocs" method="post" name="supnewsyl">
	<input type="hidden" name="active" value="ff" />
	<input type="hidden" name="folderpath" value="$path" />
	<input type="hidden" name="importdetail" 
	value="Syllabus=/public/$coursedom/$coursenum/syllabus" />
	<a class="LC_menubuttons_link" href="javascript:document.supnewsyl.submit()">$lt{'syll'}</a>
	$help{'Syllabus'}
	</form>
SNSFORM

	my $supnewaboutmeform=(<<SNAMFORM);
	<form action="/adm/coursedocs" method="post" name="supnewaboutme">
	<input type="hidden" name="active" value="ff" />
	<input type="hidden" name="folderpath" value="$path" />
	<input type="hidden" name="importdetail" 
	value="$plainname=/adm/$udom/$uname/aboutme" />
	<a class="LC_menubuttons_link" href="javascript:document.supnewaboutme.submit()">$lt{'mypi'}</a>
	$help{'My Personal Information Page'}
	</form>
SNAMFORM


my @specialdocs = (
		{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/syllabus.png" alt="'.$lt{syll}.'" onclick="document.supnewsyl.submit()" />'
            =>$supnewsylform},
		{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/myaboutme.png" alt="'.$lt{mypi}.'" onclick="document.supnewaboutme.submit()" />'
            =>$supnewaboutmeform},
		);
my @supimportdoc = (
		{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/extres.png" alt="'.$lt{extr}.'" onclick="javascript:makenewext(\'supnewext\');" />'
            =>$supnewextform},
        );
$supupdocform =  &create_form_ul(&create_list_elements(@supimportdoc)) . '<hr/>' . $supupdocform;
my %suporderhash = (
		'00' => ['Supnewfolder', $supnewfolderform],
                'ee' => ['Import Documents',$supupdocform],
                'ff' => ['Special Documents',&create_form_ul(&create_list_elements(@specialdocs))]
                );
        if ($supplementalflag) {
           my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed,'',$crstype);
           if ($error) {
              $r->print('<p><span class="LC_error">'.$error.'</span></p>');
           }
           $r->print(&generate_edit_table('2',\%suporderhash));
        }
    } elsif ($supplementalflag) {
        my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed,'',$crstype);
        if ($error) {
            $r->print('<p><span class="LC_error">'.$error.'</span></p>');
        }
    }

    &endContentScreen($r);

    if ($allowed) {
	$r->print('
<form method="post" name="extimport" action="/adm/coursedocs">
  <input type="hidden" name="title" />
  <input type="hidden" name="url" />
  <input type="hidden" name="useform" />
  <input type="hidden" name="residx" />
</form>');
    }
  } else {
      unless ($uploadphase) {
# -------------------------------------------------------- This is showdoc mode
          $r->print("<h1>".&mt('Uploaded Document').' - '.
		&Apache::lonnet::gettitle($r->uri).'</h1><p>'.
&mt('It is recommended that you use an up-to-date virus scanner before handling this file.')."</p><table>".
          &entryline(0,&mt("Click to download or use your browser's Save Link function"),$showdoc).'</table>');
      }
  }
 }
 $r->print(&Apache::loncommon::end_page());
 return OK;
}

sub embedded_form_elems {
    my ($phase,$primaryurl,$newidx) = @_;
    my $folderpath = &HTML::Entities::encode($env{'form.folderpath'},'<>&"');
    return <<STATE;
    <input type="hidden" name="folderpath" value="$folderpath" />
    <input type="hidden" name="cmd" value="upload_embedded" />
    <input type="hidden" name="newidx" value="$newidx" />
    <input type="hidden" name="phase" value="$phase" />
    <input type="hidden" name="primaryurl" value="$primaryurl" />
STATE
}

sub embedded_destination {
    my $folder=$env{'form.folder'};
    my $destination = 'docs/';
    if ($folder =~ /^supplemental/) {
        $destination = 'supplemental/';
    }
    if (($folder eq 'default') || ($folder eq 'supplemental')) {
        $destination .= 'default/';
    } elsif ($folder =~ /^(default|supplemental)_(\d+)$/) {
        $destination .=  $2.'/';
    }
    $destination .= $env{'form.newidx'};
    my $dir_root = '/userfiles';
    return ($destination,$dir_root);
}

sub return_to_editor {
    my $actionurl = '/adm/coursedocs';
    return '<p><form name="backtoeditor" method="post" action="'.$actionurl.'" />'."\n". 
           '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" /></form>'."\n".
           '<a href="javascript:document.backtoeditor.submit();">'.&mt('Return to Editor').
           '</a></p>';
}

sub generate_admin_options {
  my ($help_ref,$env_ref) = @_;
  my %lt=&Apache::lonlocal::texthash(
                                         'vc' => 'Verify Content',
                                         'cv' => 'Check/Set Resource Versions',
                                         'ls' => 'List Symbs',
                                         'sl' => 'Show Log',
                                         'imse' => 'IMS Export',
                                         'dcd' => 'Dump Course Documents to Construction Space: available on other servers'
                                          );
  my %help = %{$help_ref};
  my %env = %{$env_ref};
  my $dumpbut=&dumpbutton();
  my $exportbut=&exportbutton();
  my @list = (
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/verify.png" alt="'.$lt{vc}.'"  onclick=\'javascript:injectData(document.courseverify, "dummy", "verify", "'.$lt{'vc'}.'")\' />' 
        => "<a class='LC_menubuttons_link' href='javascript:injectData(document.courseverify, \"dummy\", \"verify\", \"$lt{'vc'}\")'>$lt{'vc'}</a>$help{'Verify_Content'}"},
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/resversion.png" alt="'.$lt{cv}.'"  onclick=\'javascript:injectData(document.courseverify, "dummy", "versions", "'.$lt{'cv'}.'")\' />'
        =>"<a class='LC_menubuttons_link' href='javascript:injectData(document.courseverify, \"dummy\", \"versions\", \"$lt{'cv'}\")'>$lt{'cv'}</a>$help{'Check_Resource_Versions'}"},
	);
  if($dumpbut ne ''){
  push @list, {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/dump.png" alt="'.$lt{dcd}.'" />'=>$dumpbut};
  }
  push @list, ({'<img class="LC_noBorder LC_middle" src="/res/adm/pages/imsexport.png" alt="'.$lt{imse}.'" onclick="javascript:injectData(document.courseverify, \'dummy\', \'exportcourse\', \''.&mt('IMS Export').'\');" />'
          =>$exportbut},
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/symbs.png" alt="'.$lt{ls}.'"  onclick=\'javascript:injectData(document.courseverify, "dummy", "listsymbs", "'.$lt{'ls'}.'")\'  />'
        =>"<a class='LC_menubuttons_link' href='javascript:injectData(document.courseverify, \"dummy\", \"listsymbs\", \"$lt{'ls'}\")'>$lt{'ls'}</a><input type='hidden' name='folder' value='$env{'form.folder'}' />"},
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/document-properties.png" alt="'.$lt{sl}.'"  onclick=\'javascript:injectData(document.courseverify, "dummy", "docslog", "'.$lt{'sl'}.'")\'  />'
        =>"<a class='LC_menubuttons_link' href='javascript:injectData(document.courseverify, \"dummy\", \"docslog\", \"$lt{'sl'}\")'>$lt{'sl'}</a>"},
	);
  return '<form action="/adm/coursedocs" method="post" name="courseverify"><input type="hidden" id="dummy" />'.&create_form_ul(&create_list_elements(@list)).'</form>';

}


sub generate_edit_table {
    my ($tid,$orderhash_ref) = @_;
    return unless(ref($orderhash_ref) eq 'HASH');
    my %orderhash = %{$orderhash_ref};
    my $form;
    my $activetab;
    my $active;
    if($env{'form.active'} ne ''){
        $activetab = $env{'form.active'};
    }
    $form = '<div class="LC_Box" style="margin-right:0">';
    $form .= '<ul id="navigation'.$tid.'" class="LC_TabContent">';
    foreach my $name (sort(keys(%orderhash))){
        if($name ne '00'){
            if($activetab eq '' || $activetab ne $name){
               $active = '';
            }elsif($activetab eq $name){
               $active = 'class="active"';
            }
            $form .= '<li '.$active
                .' onmouseover="javascript:showPage(this, \''.$name.$tid.'\', \'navigation'.$tid.'\',\'content'.$tid.'\');"'
                .' onclick="javascript:showPage(this, \''.$name.$tid.'\', \'navigation'.$tid.'\',\'content'.$tid.'\');"><a href="javascript:;"><b>'.&mt(${$orderhash{$name}}[0]).'</b></a></li>';
        } else {
	    $form .= '<li '.$active.'>'.${$orderhash{$name}}[1].'</li>';

	}
    }
    $form .= '</ul>';
    $form .= '<div id="content'.$tid.'" style="padding: 0 0; margin: 0 0; clear: both;">';
    foreach my $field (keys(%orderhash)){
	if($field ne '00'){
            if($activetab eq '' || $activetab ne $field){
                $active = 'style="display: none;"';
            }elsif($activetab eq $field){
                $active = 'style="display:block;"';
            }
            $form .= '<div id="'.$field.$tid.'"'
                    .' class="LC_ContentBox" '.$active.'>'.${$orderhash{$field}}[1]
                    .'</div>';
        }
    }
    $form .= '</div></div>';

    return $form;
}

sub editing_js {
    my ($udom,$uname) = @_;
    my $now = time();
    my %lt = &Apache::lonlocal::texthash(
                                          p_mnf => 'Name of New Folder',
                                          t_mnf => 'New Folder',
                                          p_mnp => 'Name of New Page',
                                          t_mnp => 'New Page',
                                          p_mxu => 'Title for the External Score',
                                          p_msp => 'Name of Simple Course Page',
                                          p_msb => 'Title for the Problem',
                                          p_mdb => 'Title for the Drop Box',
                                          p_mbb => 'Title for the Discussion Board',
                                          p_mab => "Enter user:domain for User's Personal Information Page",
                                          p_mab2 => 'Personal Information Page of ',
                                          p_mab_alrt1 => 'Not a valid user:domain',
                                          p_mab_alrt2 => 'Please enter both user and domain in the format user:domain',
                                          p_chn => 'New Title',
                                          p_rmr1 => 'WARNING: Removing a resource makes associated grades and scores inaccessible!',
                                          p_rmr2a => 'Remove[_99]',
                                          p_rmr2b => '?[_99]',
                                          p_ctr1a => 'WARNING: Cutting a resource makes associated grades and scores inaccessible!',
                                          p_ctr1b => 'Grades remain inaccessible if resource is pasted into another folder.',
                                          p_ctr2a => 'Cut[_98]',
                                          p_ctr2b => '?[_98]'
                                        );

    my $crstype = &Apache::loncommon::course_type();
    my $docs_folderpath = &HTML::Entities::encode($env{'environment.internal.'.$env{'request.course.id'}.'.docs_folderpath.folderpath'},'<>&"');
    my $docs_pagepath = &HTML::Entities::encode($env{'environment.internal.'.$env{'request.course.id'}.'.docs_folderpath.pagepath'},'<>&"');
    my $main_container_page;
    if ($docs_folderpath eq '') {
        if ($docs_pagepath ne '') {
            $main_container_page = 1;
        }
    }
    my $toplevelmain = 'default&Main%20'.$crstype.'%20Documents';
    my $toplevelsupp = &supplemental_base();

    return <<ENDNEWSCRIPT;
function makenewfolder(targetform,folderseq) {
    var foldername=prompt('$lt{"p_mnf"}','$lt{"t_mnf"}');
    if (foldername) {
       targetform.importdetail.value=escape(foldername)+"="+folderseq;
        targetform.submit();
    }
}

function makenewpage(targetform,folderseq) {
    var pagename=prompt('$lt{"p_mnp"}','$lt{"t_mnp"}');
    if (pagename) {
        targetform.importdetail.value=escape(pagename)+"="+folderseq;
        targetform.submit();
    }
}

function makenewext(targetname) {
    this.document.forms.extimport.useform.value=targetname;
    this.document.forms.extimport.title.value='';
    this.document.forms.extimport.url.value='';
    this.document.forms.extimport.residx.value='';
    window.open('/adm/rat/extpickframe.html');
}

function edittext(targetname,residx,title,url) {
    this.document.forms.extimport.useform.value=targetname;
    this.document.forms.extimport.residx.value=residx;
    this.document.forms.extimport.url.value=url;
    this.document.forms.extimport.title.value=title;
    window.open('/adm/rat/extpickframe.html');
}

function makeexamupload() {
   var title=prompt('$lt{"p_mxu"}');
   if (title) {
    this.document.forms.newexamupload.importdetail.value=
	escape(title)+'=/res/lib/templates/examupload.problem';
    this.document.forms.newexamupload.submit();
   }
}

function makesmppage() {
   var title=prompt('$lt{"p_msp"}');
   if (title) {
    this.document.forms.newsmppg.importdetail.value=
	escape(title)+'=/adm/$udom/$uname/$now/smppg';
    this.document.forms.newsmppg.submit();
   }
}

function makesmpproblem() {
   var title=prompt('$lt{"p_msb"}');
   if (title) {
    this.document.forms.newsmpproblem.importdetail.value=
	escape(title)+'=/res/lib/templates/simpleproblem.problem';
    this.document.forms.newsmpproblem.submit();
   }
}

function makedropbox() {
   var title=prompt('$lt{"p_mdb"}');
   if (title) {
    this.document.forms.newdropbox.importdetail.value=
        escape(title)+'=/res/lib/templates/DropBox.problem';
    this.document.forms.newdropbox.submit();
   }
}

function makebulboard() {
   var title=prompt('$lt{"p_mbb"}');
   if (title) {
    this.document.forms.newbul.importdetail.value=
	escape(title)+'=/adm/$udom/$uname/$now/bulletinboard';
    this.document.forms.newbul.submit();
   }
}

function makeabout() {
   var user=prompt("$lt{'p_mab'}");
   if (user) {
       var comp=new Array();
       comp=user.split(':');
       if ((typeof(comp[0])!=undefined) && (typeof(comp[1])!=undefined)) {
	   if ((comp[0]) && (comp[1])) {
	       this.document.forms.newaboutsomeone.importdetail.value=
		   '$lt{"p_mab2"}'+escape(user)+'=/adm/'+comp[1]+'/'+comp[0]+'/aboutme';
       this.document.forms.newaboutsomeone.submit();
   } else {
       alert("$lt{'p_mab_alrt1'}");
   }
} else {
   alert("$lt{'p_mab_alrt2'}");
}
}
}

function makeims() {
var caller = document.forms.ims.folder.value;
var newlocation = "/adm/imsimportdocs?folder="+caller+"&phase=one";
newWindow = window.open("","IMSimport","HEIGHT=700,WIDTH=750,scrollbars=yes");
newWindow.location.href = newlocation;
}


function finishpick() {
var title=this.document.forms.extimport.title.value;
var url=this.document.forms.extimport.url.value;
var form=this.document.forms.extimport.useform.value;
var residx=this.document.forms.extimport.residx.value;
eval('this.document.forms.'+form+'.importdetail.value="'+title+'='+url+'='+residx+'";this.document.forms.'+form+'.submit();');
}

function changename(folderpath,index,oldtitle,container,pagesymb) {
var title=prompt('$lt{"p_chn"}',oldtitle);
if (title) {
this.document.forms.renameform.markcopy.value=-1;
this.document.forms.renameform.title.value=title;
this.document.forms.renameform.cmd.value='rename_'+index;
if (container == 'sequence') {
    this.document.forms.renameform.folderpath.value=folderpath;
}
if (container == 'page') {
    this.document.forms.renameform.pagepath.value=folderpath;
    this.document.forms.renameform.pagesymb.value=pagesymb;
}
this.document.forms.renameform.submit();
}
}

function removeres(folderpath,index,oldtitle,container,pagesymb,skip_confirm) {
if (skip_confirm || confirm('$lt{"p_rmr1"}\\n\\n$lt{"p_rmr2a"} "'+oldtitle+'" $lt{"p_rmr2b"}')) {
this.document.forms.renameform.markcopy.value=-1;
this.document.forms.renameform.cmd.value='del_'+index;
if (container == 'sequence') {
    this.document.forms.renameform.folderpath.value=folderpath;
}
if (container == 'page') {
    this.document.forms.renameform.pagepath.value=folderpath;
    this.document.forms.renameform.pagesymb.value=pagesymb;
}
this.document.forms.renameform.submit();
}
}

function cutres(folderpath,index,oldtitle,container,pagesymb,folder,skip_confirm) {
if (skip_confirm || confirm('$lt{"p_ctr1a"}\\n$lt{"p_ctr1b"}\\n\\n$lt{"p_ctr2a"} "'+oldtitle+'" $lt{"p_ctr2b"}')) {
this.document.forms.renameform.cmd.value='cut_'+index;
this.document.forms.renameform.markcopy.value=index;
this.document.forms.renameform.copyfolder.value=folder+'.'+container;
if (container == 'sequence') {
    this.document.forms.renameform.folderpath.value=folderpath;
}
if (container == 'page') {
    this.document.forms.renameform.pagepath.value=folderpath;
    this.document.forms.renameform.pagesymb.value=pagesymb;
}
this.document.forms.renameform.submit();
}
}

function markcopy(folderpath,index,oldtitle,container,pagesymb,folder) {
this.document.forms.renameform.markcopy.value=index;
this.document.forms.renameform.copyfolder.value=folder+'.'+container;
if (container == 'sequence') {
this.document.forms.renameform.folderpath.value=folderpath;
}
if (container == 'page') {
this.document.forms.renameform.pagepath.value=folderpath;
this.document.forms.renameform.pagesymb.value=pagesymb;
}
this.document.forms.renameform.submit();
}

function unselectInactive(nav) {
currentNav = document.getElementById(nav);
currentLis = currentNav.getElementsByTagName('LI');
for (i = 0; i < currentLis.length; i++) {
	if(currentLis[i].className == 'right active' || currentLis[i].className == 'right'){
		currentLis[i].className = 'right';
	}else{
		currentLis[i].className = 'i';
	}
}
}

function hideAll(current, nav, data) {
unselectInactive(nav);
if(current.className == 'right'){
	current.className = 'right active'
	}else{
	current.className = 'active';
}
currentData = document.getElementById(data);
currentDivs = currentData.getElementsByTagName('DIV');
for (i = 0; i < currentDivs.length; i++) {
	if(currentDivs[i].className == 'LC_ContentBox'){
		currentDivs[i].style.display = 'none';
	}
}
}

function openTabs(pageId) {
	tabnav = document.getElementById(pageId).getElementsByTagName('UL');	
	if(tabnav.length > 2 ){
		currentNav = document.getElementById(tabnav[1].id);
		currentLis = currentNav.getElementsByTagName('LI');
		for(i = 0; i< currentLis.length; i++){
			if(currentLis[i].className == 'active') {
				funcString = currentLis[i].onclick.toString();
				tab = funcString.split('"');
                                if(tab.length < 2) {
                                   tab = funcString.split("'");
                                }
				currentData = document.getElementById(tab[1]);
        			currentData.style.display = 'block';
			}	
		}
	}
}

function showPage(current, pageId, nav, data) {
	hideAll(current, nav, data);
	openTabs(pageId);
	unselectInactive(nav);
	current.className = 'active';
	currentData = document.getElementById(pageId);
	currentData.style.display = 'block';
        if (nav == 'mainnav') {
            var storedpath = "$docs_folderpath";
            if (storedpath == '') {
                storedpath = "$docs_pagepath";
            }
            var storedpage = "$main_container_page";
            var reg = new RegExp("^supplemental");
            if (pageId == 'mainCourseDocuments') {
                if (storedpage == 1) {
                    document.simpleedit.folderpath.value = '';
                    document.uploaddocument.folderpath.value = '';
                } else {
                    if (reg.test(storedpath)) {
                        document.simpleedit.folderpath.value = '$toplevelmain';
                        document.uploaddocument.folderpath.value = '$toplevelmain';
                        document.newext.folderpath.value = '$toplevelmain';
                    } else {
                        document.simpleedit.folderpath.value = storedpath;
                        document.uploaddocument.folderpath.value = storedpath;
                        document.newext.folderpath.value = storedpath;
                    }
                }
            } else {
                if (reg.test(storedpath)) {
                    document.simpleedit.folderpath.value = storedpath;
                    document.supuploaddocument.folderpath.value = storedpath;
                    document.supnewext.folderpath.value = storedpath;
                } else {
                    document.simpleedit.folderpath.value = '$toplevelsupp';
                    document.supuploaddocument.folderpath.value = '$toplevelsupp';
                    document.supnewext.folderpath.value = '$toplevelsupp';
                }
            }
        }
	return false;
}

function injectData(current, hiddenField, name, value) {
	currentElement = document.getElementById(hiddenField);
	currentElement.name = name;
	currentElement.value = value;
	current.submit();
}

ENDNEWSCRIPT
}
1;
__END__


=head1 NAME

Apache::londocs.pm

=head1 SYNOPSIS

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

=head1 SUBROUTINES

=over

=item %help=()

Available help topics

=item mapread()

Mapread read maps into LONCAPA::map:: global arrays
@order and @resources, determines status
sets @order - pointer to resources in right order
sets @resources - array with the resources with correct idx

=item authorhosts()

Return hash with valid author names

=item dumpbutton()

Generate "dump" button

=item clean()

=item dumpcourse()

    Actually dump course


=item exportbutton()

    Generate "export" button

=item exportcourse()

=item create_ims_store()

=item build_package()

=item get_dependencies()

=item process_content()

=item replicate_content()

=item extract_media()

=item store_template()

=item group_import()

    Imports the given (name, url) resources into the course
    coursenum, coursedom, and folder must precede the list

=item breadcrumbs()

=item log_docs()

=item docs_change_log()

=item update_paste_buffer()

=item print_paste_buffer()

=item do_paste_from_buffer()

=item update_parameter()

=item handle_edit_cmd()

=item editor()

=item process_file_upload()

=item process_secondary_uploads()

=item is_supplemental_title()

=item parse_supplemental_title()

=item entryline()

=item tiehash()

=item untiehash()

=item checkonthis()

check on this

=item verifycontent()

Verify Content

=item devalidateversioncache() & checkversions()

Check Versions

=item mark_hash_old()

=item is_hash_old()

=item changewarning()

=item init_breadcrumbs()

Breadcrumbs for special functions

=back

=cut