# The LearningOnline Network
# Documents
#
# $Id: londocs.pm,v 1.489 2012/07/05 21:33:39 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 Apache::lonnavdisplay();
use Apache::lonuserstate();
use HTML::Entities;
use HTML::TokeParser;
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) {
                    $allowed=1;
                    last;
                }
            }
	    if ($allowed) {
		$home++;
		$outhash{'home_'.$ca.':'.$cd}=1;
	    } else {
		$outhash{'otherhome_'.$ca.':'.$cd}=$myhome;
		$other++;
	    }
	}
    }
    return ($home,$other,%outhash);
}


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.' Content to Authoring Space')."\n".
              &Apache::lonhtmlcommon::breadcrumbs('Dump '.$crstype.' Content to Authoring Space')."\n");
    $r->print(&startContentScreen('tools'));
    my ($home,$other,%outhash)=&authorhosts();
    unless ($home) {
        $r->print(&endContentScreen());
        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'}}) {
            $r->print(&endContentScreen());
            return '';
        }
	my ($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 $path=$r->dir_config('lonDocRoot')."/priv/$cd/$ca";
	    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 {
        $r->print(&mt('Searching ...').'<br />');
        $r->rflush();
# Input form
        $r->print('<form name="dumpdoc" action="" method="post">'."\n");
	unless ($home==1) {
	    $r->print('<div class="LC_left_float">'.
		      '<fieldset><legend>'.
                      &mt('Select the Authoring Space').
                      '</legend><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></fieldset></div>'."\n");
	}
	my $title=$origcrsdata{'description'};
	$title=~s/[\/\s]+/\_/gs;
	$title=&clean($title);
	$r->print('<div class="LC_left_float">'.
                  '<fieldset><legend>'.&mt('Folder in Authoring Space').'</legend>'.
                  '<input type="text" size="50" name="authorfolder" value="'.
                  $title.'" />'.
                  '</fieldset></div><br clear="all" />'."\n");
	&tiehash();
	$r->print('<h4>'.&mt('Filenames in Authoring Space').'</h4>'
                 .&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 Content").'" /></p></form>');
    }
    $r->print(&endContentScreen());
}

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;
    while (@folders) {
	my $folder=shift(@folders);
    	my $foldername=shift(@folders);
	if ($folderpath) {$folderpath.='&';}
	$folderpath.=$folder.'&'.$foldername;
        my $url;
        if ($allowed) {
            $url = '/adm/coursedocs?folderpath=';
        } else {
            $url = '/adm/supplemental?folderpath=';
        }
	$url .= &escape($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.' Content');
        }
	&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 ($r,$coursenum,$coursedom,$folder,$allowed,$crstype,$iconpath)=@_;
    my $supplementalflag=($env{'form.folderpath'}=~/^supplemental/);
    my $js = '<script type="text/javascript">'."\n".
             '// <![CDATA['."\n".
             &Apache::loncommon::display_filter_js('docslog')."\n".
             &editing_js($env{'user.domain'},$env{'user.name'},$supplementalflag)."\n".
             &history_tab_js()."\n".
             &Apache::lonratedt::editscript('simple')."\n".
             '// ]]>'."\n".
             '</script>'."\n";
    $r->print(&Apache::loncommon::start_page('Content Change Log',$js));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Content Change Log'));
    $r->print(&startContentScreen(($supplementalflag?'suppdocs':'docs')));
    my %orderhash;
    my $container='sequence';
    my $pathitem;
    if ($env{'form.pagepath'}) {
        $container='page';
        $pathitem = '<input type="hidden" name="pagepath" value="'.
                    &HTML::Entities::encode($env{'form.pagepath'},'<>&"').'" />';
    } else {
        my $folderpath=$env{'form.folderpath'};
        if ($folderpath eq '') {
            $folderpath = 'default&'.&escape(&mt('Main '.$crstype.' Documents'));
        }
        $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($folderpath,'<>&"').'" />';
    }
    my $readfile="/uploaded/$coursedom/$coursenum/$folder.$container";
    my $jumpto = $readfile;
    $jumpto =~ s{^/}{};
    my $tid = 1;
    if ($supplementalflag) {
        $tid = 2;
    }
    my ($breadcrumbtrail) = &breadcrumbs($allowed,$crstype);
    $r->print($breadcrumbtrail.
              &generate_edit_table($tid,\%orderhash,undef,$iconpath,$jumpto,
              $readfile));
    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); }

    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');
    my $filter = &Apache::loncommon::display_filter('docslog')."\n".
                 $pathitem."\n".
                 '<input type="hidden" name="folder" value="'.$env{'form.folder'}.'" />'.
                 ('&nbsp;'x2).'<input type="submit" value="'.&mt('Display').'" />';
    $r->print('<div class="LC_left_float">'.
              '<fieldset><legend>'.&mt('Display of Content Changes').'</legend>'."\n".
              &makedocslogform($filter,1).
              '</fieldset></div><br clear="all" />');
    $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>');
        my $is_supp = 0; 
        if ($docslog{$id}{'logentry'}{'currentfolder'} =~ /^supplemental/) {
            $is_supp = 1;
        }
# 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) {
                my $shown = &LONCAPA::map::qtescape($oldname);
                if ($is_supp) {
                    $shown = &Apache::loncommon::parse_supplemental_title($shown);
                }
                $r->print($shown);
	    }
	}
	$r->print('<ul>');
	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
            if ($docslog{$id}{'logentry'}{'before_order_res_'.$idx}) {
                my $shown = &LONCAPA::map::qtescape((split(/\:/,$docslog{$id}{'logentry'}{'before_order_res_'.$idx}))[0]);
                if ($is_supp) {
                    $shown = &Apache::loncommon::parse_supplemental_title($shown);
                }
		$r->print('<li>'.$shown.'</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) {
                my $shown = &LONCAPA::map::qtescape($newname);
                if ($is_supp) {
                    $shown = &Apache::loncommon::parse_supplemental_title(&LONCAPA::map::qtescape($newname));
                }
                $r->print($shown);
	    }
	}
	$r->print('<ul>');
	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
            if ($docslog{$id}{'logentry'}{'after_order_res_'.$idx}) {
                my $shown = &LONCAPA::map::qtescape((split(/\:/,$docslog{$id}{'logentry'}{'after_order_res_'.$idx}))[0]);
                if ($is_supp) {
                    $shown = &Apache::loncommon::parse_supplemental_title($shown);
                }
                $r->print('<li>'.$shown.'</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; }
    }
    $r->print(&Apache::loncommon::end_data_table()."\n".
              &makesimpleeditform($pathitem)."\n".
              '</div></div>');
    $r->print(&endContentScreen());
}

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) = &Apache::loncommon::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,$folder) = @_;
    return if (!defined($env{'docs.markedcopy_url'}));

    my $is_external;
    my $extension = (split(/\./,$env{'docs.markedcopy_url'}))[-1];
    if ($env{'docs.markedcopy_url'} =~ m{^(?:/adm/wrapper/ext|(?:http|https)(?:&colon;|:))//} ) {
        $is_external = 1;
    }

    my $canpaste;
    if ($folder =~ /^supplemental/) {
        $canpaste = &supp_pasteable($env{'docs.markedcopy_url'}); 
    } else {
        $canpaste = 1;
    }

    my $pasteinfo;
    if ($canpaste) {
        $pasteinfo = '<form name="pasteform" action="/adm/coursedocs" method="post">'
                    .'<input type="submit" name="pastemarked" value="'.&mt('Paste').'" /> ';
    } else {
        $pasteinfo = &mt('Paste buffer contains:').' ';
    }

    $r->print('<fieldset>'
             .'<legend>'.&mt('Clipboard').'</legend>'
             .$pasteinfo
             );

    my $type;
    if ($is_external) {
	$type = &mt('External Resource');
	$r->print($type.': '.
		  &LONCAPA::map::qtescape($env{'docs.markedcopy_title'}).' ('.
		  &LONCAPA::map::qtescape($env{'docs.markedcopy_url'}).')');
    }  else {
	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.$type.': '.  &Apache::loncommon::parse_supplemental_title(&LONCAPA::map::qtescape($env{'docs.markedcopy_title'})));
    }
    if ($canpaste) {
        if ($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>');
    } else {
        $r->print('<br /><p class="LC_info">'.&mt('Paste into Supplemental Content unavailable for this type of content.').'</p>');
    }
    $r->print('</fieldset>');
}

sub supp_pasteable {
    my ($url) = @_;
    if (($url =~ m{^(?:/adm/wrapper/ext|(?:http|https)(?:&colon;|:))//}) ||
        (($url =~ /\.sequence$/) && ($url =~ m{^/uploaded/})) ||
        ($url =~ m{^/uploaded/$match_domain/$match_courseid/(docs|supplemental)/(default|\d+)/\d+/}) ||
        ($url =~ m{^/adm/$match_domain/$match_username/aboutme}) ||
        ($url =~ m{^/public/$match_domain/$match_courseid/syllabus})) {
        return 1;
    }
    return;
}

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

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

# Supplemental content may only include certain types of content
    if ($folder =~ /^supplemental/) {
        unless (&supp_pasteable($env{'docs.markedcopy_url'})) {
            return &mt('Paste failed: content type is not supported within Supplemental Content'); 
        }
    }

# 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
    my ($oldurl,%removefrommap,%addedmaps,%rewrites,%copies,%dbcopies,%zombies,%params,
        %moves,$srcdom,$srcnum);
    $oldurl = $url;
    if ($url=~/\.(page|sequence)$/) {
        # If pasting a map, check if map contains other maps
        &contained_map_check($url,$folder,\%removefrommap,\%addedmaps);
        if (keys(%addedmaps) > 0) {
            &reinit_role($coursedom,$coursenum,$env{"course.$env{'request.course.id'}.home"});
        }
        my %allmaps;
        my $navmap = Apache::lonnavmaps::navmap->new();
        if (defined($navmap)) {
            foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_map() },1,0,1)) {
                $allmaps{$res->src()} = 1;
            }
        }
        if ($url=~ m{^/uploaded/}) {
	    $title=&mt('Copy of').' '.$title;
        }
	my $newid=$$.int(rand(100)).time;
	my ($oldid,$ext) = ($url=~/^(.+)\.(\w+)$/);
        if ($oldid =~ m{^(/uploaded/$match_domain/$match_courseid/)(\D+)(\d+)$}) {
            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);
            if ($allmaps{$newurl}) {
                $is_unique = 0;
            }
            while (!$is_unique && $allmaps{$newurl} && $counter < 100) {
                $counter ++;
                $newid ++;
                $newurl = $oldid.$newid;
                $is_unique = &uniqueness_check($newurl);
            }
            if ($is_unique) {
                if ($path =~ m{^/uploaded/($match_domain)/($match_courseid)/$}) {
                    $srcdom = $1;
                    $srcnum = $2;
                    if (($1 ne $coursedom) && ($2 ne $coursenum)) {
                        my $srcdom = $1;
                        my $srcnum = $2;
                        if ($env{"user.priv.cm./$srcdom/$srcnum"} =~ /\Q:mdc&F\E/) {
                            &url_paste_fixups($oldid,$ext,$coursedom,$coursenum,
                                              \%allmaps, \%rewrites,\%copies,\%dbcopies,\%zombies,\%params);
                        } else {
                            return &mt('Paste failed: Item is from a different course which you do not have rights to edit');
                        }
                    }
                }
            } else {
                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 = $newurl;
        } elsif ($url=~m {^/res/}) {
# published maps can only exists once, so remove it from paste buffer when done
            &Apache::lonnet::delenv('docs.markedcopy');
            if ($allmaps{$url}) {
                return &mt('Paste failed: only one instance of a particular published sequence or page is allowed within each course.');
            }
        }
    } elsif ($url =~ m{^/uploaded/($match_domain)/($match_courseid)/}) {
        if (($1 ne $coursedom) || ($2 ne $coursenum)) {
            $srcdom = $1;
            $srcnum = $2;
            unless ($env{"user.priv.cm./$srcdom/$srcnum"} =~ /\Q:mdc&F\E/) {
                return &mt('Paste failed: Item is from a different course which you do not have rights to edit');
            }
        }
    }
    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;
	}
    }
    my ($relpath,$oldprefix,$prefixchg);
    if ($url =~ m{^/uploaded/$match_domain/$match_courseid/(docs|supplemental)/(.+)$}) {
        $oldprefix = $1;
        $relpath = $2;
        if (($folder =~ /^supplemental/) && ($oldprefix eq 'docs')) { 
            $prefixchg = 1;
        } elsif (($folder =~ /^default/) && ($oldprefix eq 'supplemental')) {
            $prefixchg = 1;
        }
    }
    $title = &LONCAPA::map::qtunescape($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 ($relpath ne '') {
        my ($prefix,$subdir,$rem) = ($relpath =~ m{^(default|\d+)/(\d+)/(.+)$});
        my ($newloc,$newsubdir) = ($folder =~ /^(default|supplemental)_?(\d*)/);
        my $newprefix = $newloc;
        if ($newloc eq 'default') {
            $newprefix = 'docs';
        }
        if ($newsubdir eq '') {
            $newsubdir = 'default';
        }
        if (($prefixchg) || ($srcdom ne '') && ($srcnum ne '')) {
            my $newpath = "$newprefix/$newsubdir/$newidx/$rem";
            $url =
                &Apache::lonclonecourse::writefile($env{'request.course.id'},$newpath,
                                                   &Apache::lonnet::getfile($oldurl));
            if ($url eq '/adm/notfound.html') {
                return &mt('Paste failed: an error occurred saving the file.');
            } else {
                my ($newsubpath) = ($newpath =~ m{^(.*/)[^/]*$});
                $newsubpath =~ s{/+$}{/};
                $moves{$oldurl} = $newsubpath;
            }
        }
    }
    my $noparams = 0;
    if ((ref($params{$oldurl}) eq 'HASH') && ($relpath ne '') && ($folder =~ /^supplemental/)) {
        $noparams = 1;
    }
    &apply_fixups($coursedom,$coursenum,$oldurl,$url,$noparams,\%rewrites,\%copies,
                  \%dbcopies,\%zombies,\%params,\%moves);
    if ($env{'docs.markedcopy_supplemental'}) {
        if ($folder =~ /^supplemental/) {
            $title = $env{'docs.markedcopy_supplemental'};
        } else {
            (undef,undef,$title) =
                &Apache::loncommon::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 dbcopy {
    my ($url,$coursedom,$coursenum) = @_;
    if ($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;
        }
    }
    return $url;
}

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;
}

sub contained_map_check {
    my ($url,$folder,$removefrommap,$addedmaps) = @_;
    my $content = &Apache::lonnet::getfile($url);
    unless ($content eq '-1') {
        my $parser = HTML::TokeParser->new(\$content);
        $parser->attr_encoded(1);
        while (my $token = $parser->get_token) {
            next if ($token->[0] ne 'S');
            if ($token->[1] eq 'resource') {
                next if ($token->[2]->{'type'} eq 'zombie');
                my $ressrc = $token->[2]->{'src'};
                if ($folder =~ /^supplemental/) {
                    unless (&supp_pasteable($ressrc)) {
                        $removefrommap->{$url}{$token->[2]->{'id'}};
                        next;
                    }
                }
                if ($ressrc =~ /\.(sequence|page)$/) {
                    if (ref($addedmaps->{$ressrc}) eq 'ARRAY') {
                        push(@{$addedmaps->{$ressrc}},$url);
                    } else {
                        $addedmaps->{$ressrc} = [$url];
                    }
                    &contained_map_check($ressrc,$folder,$removefrommap,$addedmaps);
                }
            } elsif ($token->[1] !~ /^resource|map|link$/) {
                if ($folder =~ /^supplemental/) {
                    $removefrommap->{$url}{$token->[1]};
                }
            }
        }
    }
    return;
}

sub reinit_role {
    my ($cdom,$cnum,$chome) = @_;
    my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum");
    unless ($ferr) {
        &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,$cdom.'_'.$cnum);
    }
    return;
}

sub url_paste_fixups {
    my ($oldurl,$ext,$cdom,$cnum,$allmaps,$rewrites,$copies,$dbcopies,$zombies,$params) = @_;
    my $file = &Apache::lonnet::getfile("$oldurl.$ext");
    return if ($file eq '-1');
    my $parser = HTML::TokeParser->new(\$file);
    $parser->attr_encoded(1);
    while (my $token = $parser->get_token) {
        next if ($token->[0] ne 'S');
        if ($token->[1] eq 'resource') {
            my $ressrc = $token->[2]->{'src'};
            next if ($ressrc eq '');
            next if ($token->[2]->{'type'} eq 'external');
            my $id = $token->[2]->{'id'};
            if ($token->[2]->{'type'} eq 'zombie') {
                $zombies->{$oldurl}{$ressrc} = $id;
            } elsif ($ressrc =~ m{^/uploaded/($match_domain)/($match_courseid)/(.+)}) {
                my $srccdom = $1;
                my $srccnum = $2;
                my $rem = $3;
                if (($srccdom ne $cdom) || ($srccnum ne $cnum)) {
                    if ($rem =~ /^(default|supplemental)(_?\d*).(sequence|page)$/) {
                        $rewrites->{$oldurl}{$ressrc} = $id;
                        &url_paste_fixups($ressrc,$3,$cdom,$cnum,$allmaps,$rewrites,$copies,$dbcopies,$zombies,$params);
                    } else {
                        $rewrites->{$oldurl}{$ressrc} = $id;
                        $copies->{$oldurl}{$ressrc} = $id;
                    }
                }
            } elsif ($ressrc =~ m{^/adm/($match_domain)/($match_courseid)/(.+)$}) {
                my $srccdom = $1;
                my $srccnum = $2;
                if (($srccdom ne $cdom) || ($srccnum ne $cnum)) {
                    $rewrites->{$oldurl}{$ressrc} = $id;
                    $dbcopies->{$oldurl}{$ressrc} = $id;
                }
            } elsif ($ressrc =~ m{^/public/($match_domain)/($match_courseid)/(.+)$}) {
                my $srccdom = $1;
                my $srccnum = $2;
                if (($srccdom ne $cdom) || ($srccnum ne $cnum)) {
                    $rewrites->{$oldurl}{$ressrc} = $id;
                    $dbcopies->{$oldurl}{$ressrc} = $id;
                }
            }
        } elsif ($token->[1] eq 'param') {
            my $to = $token->[2]->{'to'}; 
            if ($to ne '') {
                if (ref($params->{$oldurl}{$to}) eq 'ARRAY') {
                    push (@{$params->{$oldurl}{$to}},$token->[2]->{'name'});
                } else {
                    @{$params->{$oldurl}{$to}} = ($token->[2]->{'name'});
                }
            }
        }
    }
    return;
}

sub apply_fixups {
    my ($cdom,$cnum,$oldurl,$url,$noparams,$rewrites,$copies,$dbcopies,$zombies,$params,
        $moves) = @_;
    my (%newdb,%newdoc);
    if (ref($dbcopies->{$oldurl}) eq 'HASH') {
        foreach my $item (keys(%{$dbcopies->{$oldurl}})) {
            $newdb{$item} = &dbcopy($item);
        }
    }
    my @allcopies;
    if (ref($copies->{$oldurl}) eq 'HASH') {
        push(@allcopies,keys(%{$copies->{$oldurl}}));
    }
    if ((ref($moves) eq 'HASH') && (exists($moves->{$oldurl}))) {
        push(@allcopies,$oldurl);
    }
    if (@allcopies > 0) {
        foreach my $item (@allcopies) {
            my $content = &Apache::lonnet::getfile($item);
            unless ($content eq '-1') {
                my $mm = new File::MMagic;
                my $mimetype = $mm->checktype_contents($content);
                if ($mimetype eq 'text/html') {
                    my (%allfiles,%codebase,$state);
                    if (&Apache::lonnet::extract_embedded_items(undef,\%allfiles,\%codebase,\$content) eq 'ok') {
                        my ($numexisting,$numpathchanges,$existing);
                        (undef,$numexisting,$numpathchanges,$existing) = 
                            &Apache::loncommon::ask_for_embedded_content(
                                '/adm/coursedocs',$state,\%allfiles,\%codebase,
                                {'error_on_invalid_names'   => 1,
                                 'ignore_remote_references' => 1,
                                 'docs_url'                 => $oldurl,
                                 'context'                  => 'paste'});
                        if ($numexisting > 0) {
                            if (ref($existing) eq 'HASH') {
                                my ($relpath) = ($item =~ m{^(/uploaded/$match_domain/$match_courseid/(?:docs|supplemental)/(?:default|\d+)/.*/)[^/]+$});
                                foreach my $dep (keys(%{$existing})) {
                                    $dep =~ s{^\Q$relpath\E}{};
                                    my $depfile = $relpath.$dep;
                                    my $depstorefn;
                                    if ((ref($copies->{$oldurl}) eq 'HASH') &&
                                        ($copies->{$oldurl}{$item})) {
                                        $depstorefn = $relpath;
                                        $depstorefn =~s{^/\w+/$match_domain/$match_courseid/}{};
                                    } elsif ((ref($moves) eq 'HASH') &&
                                             (exists($moves->{$oldurl}))) {
                                        $depstorefn = $moves->{$oldurl};
                                    }
                                    $depstorefn .= $dep;
                                    my $depcontent = &Apache::lonnet::getfile($depfile);
                                    unless ($depcontent eq '-1') {
                                        &Apache::lonclonecourse::writefile($env{'request.course.id'},$depstorefn,$depcontent);
                                    }
                                }
                            }
                        }
                    }
                }
                my $storefn=$item;
                unless (exists($moves->{$oldurl})) {
                    $storefn=~s{^/\w+/$match_domain/$match_courseid/}{};
                    $newdoc{$item} = &Apache::lonclonecourse::writefile($env{'request.course.id'},$storefn,$content);
                }
            }
        }
    }
    if (((ref($rewrites->{$oldurl}) eq 'HASH') || (ref($zombies->{$oldurl}) eq 'HASH')) || 
        ($noparams) || (keys(%newdb) > 0) || (keys(%newdoc) > 0)) {
        my $map = &Apache::lonnet::getfile($url);
        my $newcontent;
        unless ($map eq '-1') {
            my $parser = HTML::TokeParser->new(\$map);
            $parser->attr_encoded(1);
            while (my $token = $parser->get_token) {
                if ($token->[0] eq 'S') {
                    next if ($token->[2]->{'type'} eq 'zombie');
                    next if (($token->[1] eq 'param') && $noparams);
                    if ($token->[1] eq 'resource') {
                        my $src = $token->[2]->{'src'};
                        my $id = $token->[2]->{'id'};
                        if (($rewrites->{$oldurl}{$src} eq $id) || ($newdb{$src} ne '')
                            || ($newdoc{$src} ne '')) {
                            if (ref($rewrites->{$oldurl}) eq 'HASH') {
                                if ($rewrites->{$oldurl}{$src} eq $id) {
                                    $token->[2]->{'src'} =~ s{^(/uploaded|adm|public)/$match_domain/$match_courseid/}{$1/$cdom/$cnum};
                                }
                            } elsif ($newdb{$src} ne '') {
                                $token->[2]->{'src'} = $newdb{$src};
                            }
                            $newcontent .= "<$token->[1] "; 
                            foreach my $attr (@{$token->[3]}) {
                                $newcontent .=  ' '.$attr.'="'.$token->[2]->{$attr},'"'
                            }
                            $newcontent .= ' />';
                        } else {
                            $newcontent .= $token->[4]."\n";
                        }
                    }
                } elsif ($token->[0] eq 'E') {
                    $newcontent .= $token->[2]."\n";
                }
            }
        }
        my $storefn=$url;
        $storefn=~s{^/\w+/$match_domain/$match_courseid/}{};
        my $storeres =
            &Apache::lonclonecourse::writefile($env{'request.course.id'},$storefn,
                                               $newcontent);
    }
    return;
}

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/|) &&
	    ($url!~/$LONCAPA::assess_page_seq_re/)) {
	    &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,
        $supplementalflag,$orderhash,$iconpath)=@_;
    my $container= ($env{'form.pagepath'}) ? 'page'
		                           : 'sequence';

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

    my $jumpto = "uploaded/$coursedom/$coursenum/$folder.$container";

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

    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]='';
    }

# ------------------------------------------------------------ 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 ($to_show,$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) {
        $to_show = &Apache::loncommon::start_scrollbox('900px','880px','400px','contentscroll')
                  .&Apache::loncommon::start_data_table(undef,'contentlist');
        if ($allowed) {
            $to_show .= &Apache::loncommon::start_data_table_header_row()
                     .'<th colspan="2">'.&mt('Move').'</th>'
                     .'<th>'.&mt('Actions').'</th>'
                     .'<th colspan="2">'.&mt('Document').'</th>';
            if ($folder !~ /^supplemental/) {
                $to_show .= '<th colspan="4">'.&mt('Settings').'</th>';
            }
            $to_show .= &Apache::loncommon::end_data_table_header_row();
        }
        $to_show .= $output.' '
                 .&Apache::loncommon::end_data_table()
                 .'<br style="line-height:2px;" />'
                 .&Apache::loncommon::end_scrollbox();
    } else {
        $to_show .= &Apache::loncommon::start_scrollbox('400px','380px','200px','contentscroll')
                 .'<div class="LC_info" id="contentlist">'
                 .&mt('Currently no documents.')
                 .'</div>'
                 .&Apache::loncommon::end_scrollbox();
    }
    my $tid = 1;
    if ($supplementalflag) {
        $tid = 2;
    }
    if ($allowed) {
        my $readfile="/uploaded/$coursedom/$coursenum/$folder.$container";
        $r->print(&generate_edit_table($tid,$orderhash,$to_show,$iconpath,$jumpto,
                                       $readfile));
        &print_paste_buffer($r,$container,$folder);
    } else {
        if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
            #Function Box for Supplemental Content for users with mdc priv.
            my $funcname = &mt('Folder Editor');
            $r->print(
                &Apache::loncommon::head_subbox(
                    &Apache::lonhtmlcommon::start_funclist().
                    &Apache::lonhtmlcommon::add_item_funclist(
                        '<a href="/adm/coursedocs?command=direct&forcesupplement=1&'.
                        'supppath='.&HTML::Entities::encode($env{'form.folderpath'}).'">'.
                        '<img src="/res/adm/pages/docs.png" alt="'.$funcname.'" class="LC_icon" />'.
                        '<span class="LC_menubuttons_inline_text">'.$funcname.'</span></a>').
                          &Apache::lonhtmlcommon::end_funclist()));
        }
        $r->print($to_show);
    }
    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 = '<div class="LC_error" id="uploadfileresult">'.&mt('The uploaded file has not been stored as an error occurred reading the contents of the current folder.').'</div>';
            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 = '<div class="LC_error" id="uploadfileresult">'.&mt('Unable to save file [_1].','<span class="LC_filename">'.$filename.'</span>').'</div>';
            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) {
            $$upload_output = '<div class="LC_error" id="uploadfileresult">'.$errtext.'</div>';
            return;
        } else {
            if ($parseaction eq 'parse' && $mimetype eq 'text/html') {
                $$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 />';
                }
                $$upload_output = '<div id="uploadfileresult">'.$$upload_output.'</div>';
            } elsif (&Apache::loncommon::is_archive_file($mimetype)) {
                $nextphase = 'decompress_uploaded';
                my $position = scalar(@LONCAPA::map::order)-1;
                my $noextract = &return_to_editor();
                my $archiveurl = &HTML::Entities::encode($url,'<>&"');
                my %archiveitems = (
                    folderpath => $env{'form.folderpath'},
                    pagepath   => $env{'form.pagepath'},
                    cmd        => $nextphase,
                    newidx     => $newidx,
                    position   => $position,
                    phase      => $nextphase,
                    comment    => $comment,
                );
                my ($destination,$dir_root) = &embedded_destination($coursenum,$coursedom);
                my @current = &get_dir_list($url,$coursenum,$coursedom,$newidx); 
                $$upload_output = $showupload.
                                  &Apache::loncommon::decompress_form($mimetype,
                                      $archiveurl,'/adm/coursedocs',$noextract,
                                      \%archiveitems,\@current);
            }
        }
    }
    return $nextphase;
}

sub get_dir_list {
    my ($url,$coursenum,$coursedom,$newidx) = @_;
    my ($destination,$dir_root) = &embedded_destination();
    my ($dirlistref,$listerror) =  
        &Apache::lonnet::dirlist("$dir_root/$destination/$newidx",$coursedom,$coursenum,1);
    my @dir_lines;
    my $dirptr=16384;
    if (ref($dirlistref) eq 'ARRAY') {
        foreach my $dir_line (sort
                          {
                              my ($afile)=split('&',$a,2);
                              my ($bfile)=split('&',$b,2);
                              return (lc($afile) cmp lc($bfile));
                          } (@{$dirlistref})) {
            my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$dir_line,16);
            $filename =~ s/\s+$//;
            next if ($filename =~ /^\.\.?$/); 
            my $isdir = 0;
            if ($dirptr&$testdir) {
                $isdir = 1;
            }
            push(@dir_lines, [$filename,$dom,$isdir,$size,$mtime,$obs]);
        }
    }
    return @dir_lines;
}

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

# --------------------------------------------------------------- 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,$renametitle) = &Apache::loncommon::parse_supplemental_title($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,$form_end,$form_common);
# 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 $selectbox='';
	if (($#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 = '
   <form action="/adm/coursedocs" method="post">
';
        $form_common=(<<END);
   <input type="hidden" name="${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
   $form_common
   $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 (($extension eq 'sequence') || ($extension eq 'page')) {
            $url=~/\Q$coursenum\E\/([\/\w]+)\.\Q$extension\E$/;
            my $containerarg = $1;
	    if ($extension eq 'sequence') {
	        $icon=$iconpath.'navmap.folder.closed.gif';
                $folderarg=$containerarg;
                $isfolder=1;
            } else {
                $icon=$iconpath.'page.gif';
                $pagearg=$containerarg;
                $ispage=1;
            }
            if ($allowed) {
                $url='/adm/coursedocs?';
            } else {
                $url='/adm/supplemental?';
            }
	} else {
	    &Apache::lonnet::allowuploaded('/adm/coursedoc',$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($symb);
	}
    }
    my ($rand_pick_text,$rand_order_text);
    if ($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;
        my $rpicknum = (&LONCAPA::map::getparameter($orderidx,
                                                   'parameter_randompick'))[0];
        my $rpckchk;
        if ($rpicknum) {
            $rpckchk = ' checked="checked"';
        }
        my $formname = 'edit_rpick_'.$orderidx;
	$rand_pick_text = 
'<form action="/adm/coursedocs" method="post" name="'.$formname.'">'."\n".
$form_common."\n".
'<span class="LC_nobreak"><label><input type="checkbox" name="randpickon_'.$orderidx.'" id="rpick_'.$orderidx.'" onclick="'."updatePick(this.form,'$orderidx','check');".'"'.$rpckchk.' /> '.&mt('Randomly Pick').'</label><input type="hidden" name="randompick_'.$orderidx.'" id="rpicknum_'.$orderidx.'" value="'.$rpicknum.'" />';
        if ($rpicknum ne '') {
            $rand_pick_text .= ':&nbsp;<a href="javascript:updatePick('."document.$formname,'$orderidx','link'".')">'.$rpicknum.'</a>';
        }
        $rand_pick_text .= '</span></form>';
    	my $ro_set=
	    ((&LONCAPA::map::getparameter($orderidx,'parameter_randomorder'))[0]=~/^yes$/i?' checked="checked"':'');
	$rand_order_text = 
$form_start.
$form_common.'
<span class="LC_nobreak"><label><input type="checkbox" name="randomorder_'.$orderidx.'" onclick="'."this.form.changeparms.value='randomorder';this.form.submit()".'" '.$ro_set.' /> '.&mt('Random Order').' </label></span></form>';
    }
    if ($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)');
    }  
    $line.='<td>';
    if (($url=~m{/adm/(coursedocs|supplemental)}) || (!$allowed && $url)) {
       $line.='<a href="'.$url.'"><img src="'.$icon.'" alt="" class="LC_icon" /></a>';
    } elsif ($url) {
       $line.=&Apache::loncommon::modal_link($url.(($url=~/\?/)?'&amp;':'?').'inhibitmenu=yes',
                                             '<img src="'.$icon.'" alt="" class="LC_icon" />',600,500);
    } else {
       $line.='<img src="'.$icon.'" alt="" class="LC_icon" />';
    }
    $line.='</td><td>';
    if (($url=~m{/adm/(coursedocs|supplemental)}) || (!$allowed && $url)) {
       $line.='<a href="'.$url.'">'.$title.'</a>';
    } elsif ($url) {
       $line.=&Apache::loncommon::modal_link($url.(($url=~/\?/)?'&amp;':'?').'inhibitmenu=yes',
                                             $title,600,500);
    } else {
       $line.=$title.' <span class="LC_docs_reinit_warn">'.$reinit.'</span>';
    }
    $line.=$external."</td>";
    $rand_pick_text = '&nbsp;' if ($rand_pick_text eq '');
    $rand_order_text = '&nbsp;' if ($rand_order_text eq '');
    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
    $form_common
    <label><input type="checkbox" name="hiddenresource_$orderidx" onclick="this.form.changeparms.value='hiddenresource';this.form.submit()" $hidtext /> $lt{'hd'}</label>
    $form_end
    <br />
    $form_start
    $form_common
    <label><input type="checkbox" name="encrypturl_$orderidx" onclick="this.form.changeparms.value='encrypturl';this.form.submit()" $enctext /> $lt{'ec'}</label>
    $form_end
  </td>
  <td class="LC_docs_entry_parameter">$rand_pick_text<br />
                                      $rand_order_text</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 Content Identifiers

=cut

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

    my $crstype = &Apache::loncommon::course_type();
    $r->print(&Apache::loncommon::start_page('List of Content Identifiers'));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Content Identifiers'));
    $r->print(&startContentScreen('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 {
        $r->print('<h4 class="LC_info">'.&mt("$crstype Content Identifiers").'</h4>'.
                  &Apache::loncommon::start_data_table().
                  &Apache::loncommon::start_data_table_header_row().
                  '<th>'.&mt('Title').'</th><th>'.&mt('Identifier').'</th>'.
                  &Apache::loncommon::end_data_table_header_row()."\n");
        my $count;
        foreach my $res ($navmap->retrieveResources()) {
            $r->print(&Apache::loncommon::start_data_table_row().
                      '<td>'.$res->compTitle().'</td>'.
                      '<td>'.$res->symb().'</td>'.
                      &Apache::loncommon::start_data_table_row());
            $count ++;
        }
        if (!$count) {
            $r->print(&Apache::loncommon::start_data_table_row().
                      '<td colspan="2">'.&mt("$crstype is empty").'</td>'.
                      &Apache::loncommon::end_data_table_row()); 
        }
        $r->print(&Apache::loncommon::end_data_table());
    }
}


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'));
    $r->print(&startContentScreen('tools'));
    $r->print('<h4 class="LC_info">'.&mt($crstype.' content verification').'</h4>'); 
   $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"));
    $r->print(&startContentScreen('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(&Apache::loncommon::confirmwrapper(
                &Apache::lonhtmlcommon::confirm_success(&mt('Your Version Settings have been Saved'))));
	} else {
	    $r->print(&Apache::loncommon::confirmwrapper(
                &Apache::lonhtmlcommon::confirm_success(&mt('An Error Occured while Attempting to Save your Version Settings'),1)));
	}
	&mark_hash_old();
    }
    &changewarning($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 '.$crstype,
	       'lm' => 'Version changes since last Month',
	       'lw' => 'Version changes since last Week',
	       'sy' => 'Version changes since Yesterday',
               'al' => 'All Resources (possibly large output)',
               'cd' => 'Change display', 
	       'sd' => 'Display',
	       'fi' => 'File',
	       'md' => 'Modification Date',
               'mr' => 'Most recently published Version',
	       've' => 'Version used in '.$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',
	       'save' => 'Save changes',
               'vers' => 'Version choice(s) for specific resources', 
	       'act' => 'Actions');
    $r->print(<<ENDHEADERS);
<h4 class="LC_info">$header</h4>
<form action="/adm/coursedocs" method="post">
<input type="hidden" name="versions" value="1" />
<div class="LC_left_float">
<fieldset>
<legend>$lt{'cd'}</legend>
<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="$lt{'sd'}" />
</fieldset>
</div>
<div class="LC_left_float">
<fieldset>
<legend>$lt{'act'}</legend>
$lt{'sm'}: <input type="submit" name="setmostrecent" value="Go" /><br />
$lt{'sc'}: <input type="submit" name="setcurrent" value="Go" />
</fieldset>
</div>
<br clear="all" />
<hr />
<h4>$lt{'vers'}</h4>
<input type="submit" name="setversions" value="$lt{'save'}" />
<table border="0">
ENDHEADERS
    #number of columns for version history
    my $num_ver_col = 1;
    $r->print(
    &Apache::loncommon::start_data_table().
    &Apache::loncommon::start_data_table_header_row().
    '<th>'.&mt('Resources').'</th>'.
    "<th>$lt{'mr'}</th>".
    "<th>$lt{'ve'}</th>".
    "<th>$lt{'vu'}</th>".
    '<th colspan="'.$num_ver_col.'">'.&mt('History').'</th>'.
    '</b>');
    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='<span class="LC_error">'.&mt('Could not be determined.').'</span>';
	    }
	    my $linkurl=&Apache::lonnet::clutter($key);
        $r->print(
            &Apache::loncommon::end_data_table_header_row().
            &Apache::loncommon::start_data_table_row().
            '<td><b>'.&Apache::lonnet::gettitle($linkurl).'</b><br>'.
            '<a href="'.$linkurl.'" target="cat">'.$linkurl.'</a></td>'.
            '<td align="right">'.$currentversion.'<span class="LC_fontsize_medium"><br>('.
            &Apache::lonlocal::locallocaltime(&Apache::lonnet::metadata($root.'.'.$extension,'lastrevisiondate')).')</span></td>'.
            '<td align="right">');
# Used in course
	    my $usedversion=$hash{'version_'.$linkurl};
	    if (($usedversion) && ($usedversion ne 'mostrecent')) {
                if($usedversion != $currentversion){
                    $r->print('<span class="LC_warning">'.$usedversion.'</span>');
                }else{
                    $r->print($usedversion);
                }
	    } else {
		$r->print($currentversion);
	    }
	    $r->print('</td><td title="'.$lt{'vu'}.'">');
# 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)}));
	    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 % $num_ver_col == 0) {
                $entries_per_col = $num_entries/$num_ver_col;
            } else {
                $entries_per_col = $num_entries/$num_ver_col + 1;
            }
            my $entries_count = 0;
            $r->print('<td valign="top"><span class="LC_fontsize_medium">');
            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.
			      '" target="diffs">'.&mt('Diffs').'</a>');
		}
		$r->print('</span><br />');
                if (++$entries_count % $entries_per_col == 0) {
                    $r->print('</span></td>');
                    if ($cols_output != $num_ver_col) {
                        $r->print('<td valign="top"><span class="LC_fontsize_medium">');
                        $cols_output++;
                    }
                }
	    }
            while($cols_output++ < $num_ver_col) {
                $r->print('</span></td><td>');
            }
	}
    }
    $r->print('</td>'.&Apache::loncommon::end_data_table_row().
            &Apache::loncommon::end_data_table().
            '<input type="submit" name="setversions" value="'.$lt{'save'}.'" />');

    &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?tools=1",
					    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 ($mode) = @_;
    my $output = '<ul class="LC_TabContentBigger" id="mainnav">';
    if (($mode eq 'navmaps') || ($mode eq 'supplemental')) {
        $output .= '<li'.(($mode eq 'navmaps')?' class="active"':'').'><a href="/adm/navmaps"><b>&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Overview').'&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>'."\n";
        $output .= '<li'.(($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>'."\n";
        $output .= '<li'.(($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>'."\n";
        $output .= '<li '.(($mode eq 'suppdocs')?' class="active"':'').'><a href="/adm/supplemental"><b>'.&mt('Supplemental Content').'</b></a></li>';
    } else {
        $output .= '<li '.(($mode eq 'docs')?' class="active"':'').' id="tabbededitor"><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>'."\n";
        $output .= '<li '.(($mode eq 'suppdocs')?' class="active"':'').'><a href="/adm/coursedocs?forcesupplement=1"><b>'.&mt('Supplemental Content Editor').'</b></a></li>'."\n";
        $output .= '<li '.(($mode eq 'tools')?' class="active"':'').'><a href="/adm/coursedocs?tools=1"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Utilities').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>'."\n";
                   '><a href="/adm/coursedocs?tools=1"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Utilities').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>';
    }
    $output .= "\n".'</ul>'."\n";
    $output .= '<div class="LC_DocsBox" style="clear:both;margin:0;" id="contenteditor">'.
               '<div id="maincoursedoc" style="margin:0 0;padding:0 0;">'.
               '<div class="LC_ContentBox" id="mainCourseDocuments" style="display: block;">';
    return $output;
}

#
# End tabs
#

sub endContentScreen {
    return '</div></div></div>';
}

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

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

# get course data
    my $crstype = &Apache::loncommon::course_type();
    my $coursenum=$env{'course.'.$env{'request.course.id'}.'.num'};
    my $coursedom=$env{'course.'.$env{'request.course.id'}.'.domain'};

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

#
# --------------------------------------------- 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');

    
    my $allowed;
# URI is /adm/supplemental when viewing supplemental docs in non-edit mode.
    unless ($r->uri eq '/adm/supplemental') {
        # does this user have privileges to modify content.  
        $allowed = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
    }

    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['chooseserver',
                                            'inhibitmenu']);
  if ($allowed && $env{'form.chooseserver'}) {
      &choose_dump_server($r);
      return OK;
  } elsif ($allowed && $env{'form.verify'}) {
      &init_breadcrumbs('verify','Verify Content');
      &verifycontent($r);
  } elsif ($allowed && $env{'form.listsymbs'}) {
      &init_breadcrumbs('listsymbs','List Content IDs');
      &list_symbs($r);
  } elsif ($allowed && $env{'form.docslog'}) {
      &init_breadcrumbs('docslog','Show Log');
      my $folder = $env{'form.folder'};
      if ($folder eq '') {
          $folder='default';
      }
      &docs_change_log($r,$coursenum,$coursedom,$folder,$allowed,$crstype,$iconpath);
  } elsif ($allowed && $env{'form.versions'}) {
      &init_breadcrumbs('versions','Check/Set Resource Versions');
      &checkversions($r);
  } elsif ($allowed && $env{'form.dumpcourse'}) {
      &init_breadcrumbs('dumpcourse','Dump '.&Apache::loncommon::course_type().' Content to Authoring Space');
      &dumpcourse($r);
  } elsif ($allowed && $env{'form.exportcourse'}) {
      &init_breadcrumbs('exportcourse','IMS Export');
      &Apache::imsexport::exportcourse($r);
  } else {
#
# Done catching special calls
# The whole rest is for course and supplemental documents and utilities menu
# Get the parameters that may be needed
#
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                            ['folderpath','pagepath',
                                             'pagesymb','forcesupplement','forcestandard',
                                             'tools','symb','command']);

# 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 or utilities
# supplementalflag=1: show supplemental documents
# supplementalflag=0: show standard documents
# toolsflag=1: show utilities


    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 $toolsflag=0;
    if ($env{'form.tools'}) { $toolsflag=1; }

    my $script='';
    my $showdoc=0;
    my $addentries = {};
    my $container;
    my $containertag;
    my $uploadtag;

# Do we directly jump somewhere?

   if ($env{'form.command'} eq 'direct') {
       my ($mapurl,$id,$resurl);
       if ($env{'form.symb'} ne '') {
           ($mapurl,$id,$resurl) = &Apache::lonnet::decode_symb($env{'form.symb'});
           if ($resurl=~/\.(sequence|page)$/) {
               $mapurl=$resurl;
           } elsif ($resurl eq 'adm/navmaps') {
               $mapurl=$env{'course.'.$env{'request.course.id'}.'.url'};
           }
           my $mapresobj;
           my $navmap = Apache::lonnavmaps::navmap->new();
           if (ref($navmap)) {
               $mapresobj = $navmap->getResourceByUrl($mapurl);
           }
           $mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1};
           my $type=$2;
           my $path;
           if (ref($mapresobj)) {
               my $pcslist = $mapresobj->map_hierarchy();
               if ($pcslist ne '') {
                   foreach my $pc (split(/,/,$pcslist)) {
                       next if ($pc <= 1);
                       my $res = $navmap->getByMapPc($pc);
                       if (ref($res)) {
                           my $thisurl = $res->src();
                           $thisurl=~s{^.*/([^/]+)\.\w+$}{$1}; 
                           my $thistitle = $res->title();
                           $path .= '&'.
                                    &Apache::lonhtmlcommon::entity_encode($thisurl).'&'.
                                    &Apache::lonhtmlcommon::entity_encode($thistitle).
                                    ':'.$res->randompick().
                                    ':'.$res->randomout().
                                    ':'.$res->encrypted().
                                    ':'.$res->randomorder();
                       }
                   }
               }
               $path .= '&'.&Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
                    &Apache::lonhtmlcommon::entity_encode($mapresobj->title()).
                    ':'.$mapresobj->randompick().
                    ':'.$mapresobj->randomout().
                    ':'.$mapresobj->encrypted().
                    ':'.$mapresobj->randomorder();
           } else {
               my $maptitle = &Apache::lonnet::gettitle($mapurl);
               $path = '&default&...::::'.
                   '&'.&Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
                   &Apache::lonhtmlcommon::entity_encode($maptitle).'::::';
           }
           $path = 'default&'.
                   &Apache::lonhtmlcommon::entity_encode('Main Course Documents').
                   $path;
           if ($type eq 'sequence') {
               $env{'form.folderpath'}=$path;
               $env{'form.pagepath'}='';
           } else {
               $env{'form.pagepath'}=$path;
               $env{'form.folderpath'}='';
           }
       } elsif ($env{'form.supppath'} ne '') {
           $env{'form.folderpath'}=$env{'form.supppath'};
       }
   } elsif ($env{'form.command'} eq 'editdocs') {
        $env{'form.folderpath'} = 'default&'.
                                  &Apache::lonhtmlcommon::entity_encode('Main Course Content');
        $env{'form.pagepath'}='';
   } elsif ($env{'form.command'} eq 'editsupp') {
        $env{'form.folderpath'} = 'default&'.
                                  &Apache::lonhtmlcommon::entity_encode('Supplemental Content');
        $env{'form.pagepath'}='';
   }

# 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
    unless ($toolsflag) {
        &Apache::loncommon::store_course_settings($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);
            $container='sequence';
        }
        if ($env{'form.pagepath'}) {
            my (@pagepath)=split('&',$env{'form.pagepath'});
            $env{'form.pagename'}=&unescape(pop(@pagepath));
            $env{'form.folder'}=pop(@pagepath);
            $container='page';
            $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 personal data
    my $uname=$env{'user.name'};
    my $udom=$env{'user.domain'};
    my $plainname=&escape(&Apache::loncommon::plainname($uname,$udom));

    if ($allowed) {
        if ($toolsflag) {
            $script .= &inject_data_js();
            my ($home,$other,%outhash)=&authorhosts();
            if (!$home && $other) {
                my @hosts;
                foreach my $aurole (keys(%outhash)) {
                    unless(grep(/^\Q$outhash{$aurole}\E/,@hosts)) {
                        push(@hosts,$outhash{$aurole});
                    }
                }
                $script .= &dump_switchserver_js(@hosts); 
            }
        } else {
            my @tabids;
            if ($supplementalflag) {
                @tabids = ('002','ee2','ff2');
            } else {
                @tabids = ('aa1','bb1','cc1','ff1');
                unless ($env{'form.pagepath'}) {
                    unshift(@tabids,'001');
                    push(@tabids,('dd1','ee1'));
                }
            }
            my $tabidstr = join("','",@tabids);
	    $script .= &editing_js($udom,$uname,$supplementalflag).
                       &history_tab_js().
                       &inject_data_js().
                       &Apache::lonhtmlcommon::resize_scrollbox_js('docs',$tabidstr);
            $addentries = {
                            onload   => "javascript:resize_scrollbox('contentscroll','1','1');",
                          };
        }
    }
# -------------------------------------------------------------------- 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,
                                                  'add_entries'    => $addentries,
                                                 })
                 .&Apache::loncommon::help_open_menu('','',273,'RAT')
                 .&Apache::lonhtmlcommon::breadcrumbs(
                     'Editing '.$crstype.' Contents',
                     '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();
          my $result = 
              &Apache::loncommon::modify_html_refs('coursedoc',$destination,
                                                   $docuname,$docudom,undef,
                                                   $dir_root);
          $r->print($result.&return_to_editor());   
      } elsif ($env{'form.phase'} eq 'decompress_uploaded') {
          $uploadphase = 'decompress_phase_one';
          $r->print(&decompression_phase_one().
                    &return_to_editor());
      } elsif ($env{'form.phase'} eq 'decompress_cleanup') {
          $uploadphase = 'decompress_phase_two';
          $r->print(&decompression_phase_two().
                    &return_to_editor());
      }
  }

  if ($allowed && $toolsflag) {
      $r->print(&startContentScreen('tools'));
      $r->print(&generate_admin_menu($crstype));
      $r->print(&endContentScreen());
  } elsif ((!$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',
		'lnks' => 'Import from Stored Links',
                '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 $fileuploada = "<br clear='all' /><input type='submit' value='".$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="60" name="comment" />
	$uploadtag
	<input type="hidden" name="cmd" value="upload_default" />
	<br />
	<span class="LC_nobreak" style="float:left">
	$checkbox
	</span>
FUFORM
    $fileuploadform .= $fileuploada.'</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{lnks}.'" onclick="javascript:open_StoredLinks_Import();" />' => "<a class='LC_menubuttons_link' href='javascript:open_StoredLinks_Import();'>$lt{'lnks'}</a>" },
	);
	$simpleeditdefaultform .= &create_form_ul(&create_list_elements(@simpleeditdefaultforma));
	$simpleeditdefaultform .=(<<SEDFFORM);
	<hr id="bb_hrule" style="width:0px;text-align:left;margin-left:0" />
	$lt{'copm'}<br />
	<input type="text" size="40" name="importmap" /><br />
	<span class="LC_nobreak" style="float:left"><input type="button"
	onclick="javascript:openbrowser('simpleeditdefault','importmap','sequence,page','')"
	value="$lt{'selm'}" /> <input type="submit" name="loadmap" value="$lt{'load'}" />
	$help{'Load_Map'}</span>
	</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);
	$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>

HIDDENFORM
        $r->print(&makesimpleeditform($uploadtag)."\n".
                  &makedocslogform($uploadtag."\n".
                                   '<input type="hidden" name="folder" value="'.
                                   $env{'form.folder'}.'" />'."\n"));
    }

# Generate the tabs
    my $mode;
    if (($supplementalflag) && (!$allowed)) {
        &Apache::lonnavdisplay::startContentScreen($r,'supplemental');
    } else {
        $r->print(&startContentScreen(($supplementalflag?'suppdocs':'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 $imspform=(<<IMSPFORM);
	<form action="/adm/imsimportdocs" method="post" name="ims">
	<input type="hidden" name="folder" value="$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 id="cc_hrule" style="width:0px;text-align:left;margin-left:0" />' . $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 %orderhash = (
                'aa' => ['Import Content',$fileuploadform],
                'bb' => ['Published Content',$simpleeditdefaultform],
                'cc' => ['Grading Resources',$gradingform],
                );
unless ($env{'form.pagepath'}) {
    $orderhash{'00'} = ['Newfolder',$newfolderform];
    $orderhash{'dd'} = ['Collaboration',$communityform];
    $orderhash{'ee'} = ['Special Documents',$specialdocumentsform];
}

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

          &changewarning($r,'');
        }
    }

# 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 id="ee_hrule" style="width:0px;text-align:left;margin-left:0" />' . $supupdocform;
my %suporderhash = (
		'00' => ['Supnewfolder', $supnewfolderform],
                'ee' => ['Import Content',$supupdocform],
                'ff' => ['Special Documents',&create_form_ul(&create_list_elements(@specialdocs))]
                );
        if ($supplementalflag) {
           my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed,'',$crstype,
                               $supplementalflag,\%suporderhash,$iconpath);
           if ($error) {
              $r->print('<p><span class="LC_error">'.$error.'</span></p>');
           }
        }
    } elsif ($supplementalflag) {
        my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed,'',$crstype,
                            $supplementalflag,'',$iconpath);
        if ($error) {
            $r->print('<p><span class="LC_error">'.$error.'</span></p>');
        }
    }

    $r->print(&endContentScreen());

    if ($allowed) {
	$r->print('
<form method="post" name="extimport" action="/adm/coursedocs">
  <input type="hidden" name="title" />
  <input type="hidden" name="url" />
  <input type="hidden" name="useform" />
  <input type="hidden" name="residx" />
</form>');
    }
  } elsif ($showdoc) {
# -------------------------------------------------------- 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 decompression_info {
    my ($destination,$dir_root) = &embedded_destination();
    my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
    my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
    my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
    my $container='sequence';
    my ($pathitem,$hiddenelem);
    my @hiddens = ('newidx','comment','position');
    if ($env{'form.pagepath'}) {
        $container='page';
        $pathitem = 'pagepath';
    } else {
        $pathitem = 'folderpath';
    }
    unshift(@hiddens,$pathitem);
    foreach my $item (@hiddens) {
        if ($env{'form.'.$item}) {
            $hiddenelem .= '<input type="hidden" name="'.$item.'" value="'.
                           $env{'form.'.$item}.'" />'."\n";
        }
    }
    return ($destination,$dir_root,$londocroot,$docudom,$docuname,$container,
            $hiddenelem);
}

sub decompression_phase_one {
    my ($dir,$file,$warning,$error,$output);
    my ($destination,$dir_root,$londocroot,$docudom,$docuname,$container,$hiddenelem)=
        &decompression_info();
    if ($env{'form.archiveurl'} !~ m{^/uploaded/\Q$docudom/$docuname/docs/\E(?:default|supplemental|\d+).*/([^/]+)$}) {
        $error = &mt('Archive file "[_1]" not in the expected location.',$env{'form.archiveurl'});
    } else {
        my $file = $1;
        $output = 
            &Apache::loncommon::process_decompression($docudom,$docuname,$file,
                                                      $destination,$dir_root,
                                                      $hiddenelem);
        if ($env{'form.autoextract_camtasia'}) {
            $output .= &remove_archive($docudom,$docuname,$container);
        }
    }
    if ($error) {
        $output .= '<p class="LC_error">'.&mt('Not extracted.').'<br />'.
                   $error.'</p>'."\n";
    }
    if ($warning) {
        $output .= '<p class="LC_warning">'.$warning.'</p>'."\n";
    }
    return $output;
}

sub decompression_phase_two {
    my ($destination,$dir_root,$londocroot,$docudom,$docuname,$container,$hiddenelem)=
        &decompression_info();
    my $output;
    if ($env{'form.archivedelete'}) {
        $output = &remove_archive($docudom,$docuname,$container);
    }
    $output .= 
        &Apache::loncommon::process_extracted_files('coursedocs',$docudom,$docuname,
                                                    $destination,$dir_root,$hiddenelem);
    return $output;
}

sub remove_archive {
    my ($docudom,$docuname,$container) = @_;
    my $map = $env{'form.folder'}.'.'.$container;
    my ($output,$delwarning,$delresult,$url);
    my ($errtext,$fatal) = &mapread($docuname,$docudom,$map);
    if ($fatal) {
        if ($container eq 'page') {
            $delwarning = &mt('An error occurred retrieving the contents of the current page.');
        } else {
            $delwarning = &mt('An error occurred retrieving the contents of the current folder.');
        }
        $delwarning .= &mt('As a result the archive file has not been removed.');
    } else {
        my $currcmd = $env{'form.cmd'};
        my $position = $env{'form.position'};
        if ($position > 0) { 
            $env{'form.cmd'} = 'del_'.$position;
            my ($title,$url,@rrest) = 
                split(/:/,$LONCAPA::map::resources[$LONCAPA::map::order[$position]]);
            if (&handle_edit_cmd($docuname,$docudom)) {
                ($errtext,$fatal) = &storemap($docuname,$docudom,$map);
                if ($fatal) {
                    if ($container eq 'page') {
                        $delwarning = &mt('An error occurred updating the contents of the current page.');
                    } else {
                        $delwarning = &mt('An error occurred updating the contents of the current folder.');
                    }
                } else {
                    $delresult = &mt('Archive file removed.');
                }
            }
        }
        $env{'form.cmd'} = $currcmd;
    }
    if ($delwarning) {
        $output = '<p class="LC_warning">'.
                   $delwarning.
                   '</p>';
    }
    if ($delresult) {
        $output .= '<p class="LC_info">'.
                   $delresult.
                   '</p>';
    }
    return $output;
}

sub generate_admin_menu {
    my ($crstype) = @_;
    my $lc_crstype = lc($crstype);
    my ($home,$other,%outhash)=&authorhosts();
    my %lt=&Apache::lonlocal::texthash (
                                         'vc'   => 'Verify Content',
                                         'cv'   => 'Check/Set Resource Versions',
                                         'ls'   => 'List Resource Identifiers',
                                         'imse' => 'Export contents to IMS Archive',
                                         'dcd'  => "Dump $crstype Content to Authoring Space",
                                       );
    my ($candump,$dumpurl);
    if ($home + $other > 0) {
        $candump = 'F';
        if ($home) {
            $dumpurl = "javascript:injectData(document.courseverify,'dummy','dumpcourse','$lt{'dcd'}')";
        } else {
            my @hosts;
            foreach my $aurole (keys(%outhash)) {
                unless(grep(/^\Q$outhash{$aurole}\E/,@hosts)) {
                    push(@hosts,$outhash{$aurole});
                }  
            }
            if (@hosts == 1) {
                my $switchto = '/adm/switchserver?otherserver='.$hosts[0].
                               '&amp;role='.
                               &HTML::Entities::encode($env{'request.role'},'"<>&').'&amp;origurl='.
                               &HTML::Entities::encode('/adm/coursedocs?dumpcourse=1','"<>&');
                $dumpurl = "javascript:dump_needs_switchserver('$switchto')";
            } else {
                $dumpurl = "javascript:choose_switchserver_window()";
            }
        }
    }
    my @menu=
        ({  categorytitle=>'Administration',
            items =>[
                {   linktext   => $lt{'vc'},
                    url        => "javascript:injectData(document.courseverify,'dummy','verify','$lt{'vc'}')",
                    permission => 'F',
                    help       => 'Verify_Content',
                    icon       => 'verify.png',
                    linktitle  => 'Verify contents can be retrieved/rendered',
                },
                {   linktext => $lt{'cv'},
                    url => "javascript:injectData(document.courseverify,'dummy','versions','$lt{'cv'}')",
                    permission => 'F',
                    help       => 'Check_Resource_Versions',
                    icon       => 'resversion.png',
                    linktitle  => "View version information for resources in your $lc_crstype, and fix/unfix use of specific versions",
                },
                {   linktext   => $lt{'ls'},
                    url        => "javascript:injectData(document.courseverify,'dummy','listsymbs','$lt{'ls'}')",
                    permission => 'F',
                    #help => '',
                    icon       => 'symbs.png',
                    linktitle  => "List the unique identifier used for each resource instance in your $lc_crstype"
                },
                ]
        },
        {   categorytitle=>'Export',
            items =>[
                {   linktext   => $lt{'imse'},
                    url => "javascript:injectData(document.courseverify,'dummy','exportcourse','$lt{'imse'}')",
                    permission => 'F',
                    help       => 'Docs_Export_Course_Docs',
                    icon       => 'imsexport.png',
                    linktitle  => $lt{'imse'},
                },
                {   linktext   => $lt{'dcd'},
                    url        => $dumpurl,
                    permission => $candump,
                    #help => '',
                    icon       => 'dump.png',
                    linktitle  => $lt{'dcd'},
                },
                ]
        });
    return '<form action="/adm/coursedocs" method="post" name="courseverify">'."\n".
           '<input type="hidden" id="dummy" />'."\n".
           &Apache::lonhtmlcommon::generate_menu(@menu)."\n".
           '</form>';
}

sub generate_edit_table {
    my ($tid,$orderhash_ref,$to_show,$iconpath,$jumpto,$readfile) = @_;
    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'};
    }
    my $backicon = $iconpath.'clickhere.gif';
    my $backtext = &mt('To Overview');
    $form = '<div class="LC_Box" style="margin:0;">'.
            '<ul id="navigation'.$tid.'" class="LC_TabContent">'."\n".
            '<li class="goback">'.
            '<a href="javascript:toContents('."'$jumpto'".');">'.
            '<img src="'.$backicon.'" class="LC_icon" style="border: none; vertical-align: top;"'.
            '  alt="'.$backtext.'" />'.$backtext.'</a></li>'."\n".
            '<li>'.
            '<a href="javascript:groupopen('."'$readfile'".',1);">'.
            &mt('Undo Delete').'</a></li>'."\n";
    if ($env{'form.docslog'}) {
        $form .= '<li class="active">';
    } else {
        $form .= '<li>';
    }
    $form .= '<a href="javascript:toggleHistoryDisp(1);">'.
             &mt('History').'</a></li>'."\n";
    if ($env{'form.docslog'}) {
        $form .= '<li><a href="javascript:toggleHistoryDisp(0);">'.
                 &mt('Edit').'</a></li>'."\n";
    }
    foreach my $name (reverse(sort(keys(%orderhash)))) {
        if($name ne '00'){
            if($activetab eq '' || $activetab ne $name){
               $active = '';
            }elsif($activetab eq $name){
               $active = 'class="active"';
            }
            $form .= '<li style="float:right" '.$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>'."\n";
        } else {
	    $form .= '<li '.$active.' style="float:right">'.${$orderhash{$name}}[1].'</li>'."\n";

	}
    }
    $form .= '</ul>'."\n";
    $form .= '<div id="content'.$tid.'" style="padding: 0 0; margin: 0 0; overflow: hidden; clear:right">'."\n";

    if ($to_show ne '') {
        $form .= '<div style="padding:0;margin:0;float:left">'.$to_show.'</div>'."\n";
    }
    foreach my $field (keys(%orderhash)){
	if($field ne '00'){
            if($activetab eq '' || $activetab ne $field){
                $active = 'style="display: none;float:left"';
            }elsif($activetab eq $field){
                $active = 'style="display:block;float:left"';
            }
            $form .= '<div id="'.$field.$tid.'"'
                    .' class="LC_ContentBox" '.$active.'>'.${$orderhash{$field}}[1]
                    .'</div>'."\n";
        }
    }
    unless ($env{'form.docslog'}) {
        $form .= '</div></div>'."\n";
    }
    return $form;
}

sub editing_js {
    my ($udom,$uname,$supplementalflag) = @_;
    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]',
                                          rpck    => 'Enter number to pick (e.g., 3)',
                                        );

    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();

    my $backtourl = '/adm/navmaps';
    if ($supplementalflag) {
        $backtourl = '/adm/supplemental';
    }

    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 updatePick(targetform,index,caller) {
    var pickitem = document.getElementById('rpick_'+index);
    var picknumitem = document.getElementById('rpicknum_'+index);
    if (pickitem.checked) {
        var picknum=prompt('$lt{"rpck"}',picknumitem.value);
        if (picknum == '' || picknum == null) {
            if (caller == 'check') {
                pickitem.checked=false;
                return;
            }
        } else {
            picknum.toString();
            var regexdigit=/^\\d+\$/;
            if (regexdigit.test(picknum)) {
                picknumitem.value = picknum;
                targetform.changeparms.value='randompick';
                targetform.submit();
            } else {
                if (caller == 'check') {
                    pickitem.checked=false;
                }
                return;
            }
        }
    } else {
        picknumitem.value = 0;
        targetform.changeparms.value='randompick';
        targetform.submit();
    }
}

function unselectInactive(nav) {
currentNav = document.getElementById(nav);
currentLis = currentNav.getElementsByTagName('LI');
for (i = 0; i < currentLis.length; i++) {
        if (currentLis[i].className == 'goback') {
            currentLis[i].className = 'goback';
        } else {
	    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';
        activeTab = pageId;
        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';
                }
            }
        }
        resize_scrollbox('contentscroll','1','0');
	return false;
}

function toContents(jumpto) {
    var newurl = '$backtourl';
    if (jumpto != '') {
        newurl = newurl+'?postdata='+jumpto;
;
    }
    location.href=newurl;
}

ENDNEWSCRIPT
}

sub history_tab_js {
    return <<"ENDHIST";
function toggleHistoryDisp(choice) {
    document.docslogform.docslog.value = choice;
    document.docslogform.submit();
    return;
}

ENDHIST
}

sub inject_data_js {
    return <<ENDINJECT;

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

ENDINJECT
}

sub dump_switchserver_js {
    my @hosts = @_;
    my %lt = &Apache::lonlocal::texthash(
        dump => 'Dumping to Authoring Space requires switching server.',
        swit => 'Switch server?',
        duco => 'Dump content to Authoring Space',
        yone => 'You need to switch to a server housing an Authoring Space for which you are author or co-author.',
        chos => 'Choose server',
    );
    my $role = $env{'request.role'};
    my $js = <<"ENDSWJS";
<script type="text/javascript">
function write_switchserver() {
    var server;
    if (document.setserver.posshosts.length > 0) {
        for (var i=0; i<document.setserver.posshosts.length; i++) {
            if (document.setserver.posshosts[i].checked) {
                server = document.setserver.posshosts[i].value;
            }
       }
       opener.document.location.href="/adm/switchserver?otherserver="+server+"&role=$role&origurl=/adm/coursedocs";
    }
    window.close();
}
</script>

ENDSWJS

    my $startpage = &Apache::loncommon::start_page('Choose server',$js,
                                                   {'only_body' => 1,
                                                    'js_ready'  => 1,});
    my $endpage = &Apache::loncommon::end_page({'js_ready'  => 1});

    my $hostpicker;
    my $count = 0;
    foreach my $host (sort(@hosts)) {
        my $checked;
        if ($count == 0) {
            $checked = ' checked="checked"';
        }
        $hostpicker .= '<label><input type="radio" name="posshosts" value="'.
                       $host.'"'.$checked.' />'.$host.'</label>&nbsp;&nbsp;';
        $count++;
    }
    
    return <<"ENDSWITCHJS";

function dump_needs_switchserver(url) {
    if (url!='' && url!= null) {
        if (confirm("$lt{'dump'}\\n$lt{'swit'}")) {
            go(url);
        }
    }
    return;
}

function choose_switchserver_window() {
    newWindow = window.open('','ChooseServer','height=400,width=500,scrollbars=yes')
    newWindow.document.open();
    newWindow.document.writeln('$startpage');
    newWindow.document.write('<h3>$lt{'duco'}<\\/h3>\\n'+
       '<p>$lt{'yone'}<\\/p>\\n'+
       '<div class="LC_left_float"><fieldset><legend>$lt{'chos'}<\\/legend>\\n'+
       '<form name="setserver" method="post" action="" \\/>\\n'+
       '$hostpicker\\n'+
       '<br \\/><br \\/>\\n'+
       '<input type="button" name="makeswitch" value="$lt{'swit'}" '+
       'onclick="write_switchserver();" \\/>\\n'+
       '<\\/form><\\/fieldset><\\/div><br clear="all" \\/>\\n');
    newWindow.document.writeln('$endpage');
    newWindow.document.close();
    newWindow.focus();
}

ENDSWITCHJS
}

sub makedocslogform {
    my ($formelems,$docslog) = @_;
    return <<"LOGSFORM";
 <form action="/adm/coursedocs" method="post" name="docslogform">
   <input type="hidden" name="docslog" value="$docslog" />
   $formelems
 </form>
LOGSFORM
}

sub makesimpleeditform {
    my ($formelems) = @_;
    return <<"SIMPFORM";
 <form name="simpleedit" method="post" action="/adm/coursedocs">
   <input type="hidden" name="importdetail" value="" />
   $formelems
 </form>
SIMPFORM
}

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 clean()

=item dumpcourse()

    Actually dump course

=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 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

=item create_list_elements()

=item create_form_ul()

=item startContentScreen() 

=item endContentScreen()

=item supplemental_base()

=item embedded_form_elems()

=item embedded_destination()

=item return_to_editor()

=item decompression_info()

=item decompression_phase_one()

=item decompression_phase_two()

=item remove_archive()

=item generate_admin_menu()

=item generate_edit_table()

=item editing_js()

=item history_tab_js()

=item inject_data_js()

=item dump_switchserver_js()

=item resize_scrollbox_js()

=item makedocslogform()

=item makesimpleeditform()

=back

=cut