File:  [LON-CAPA] / loncom / interface / londocs.pm
Revision 1.188: download - view: text, annotated - select for diffs
Sat Jun 11 13:38:47 2005 UTC (18 years, 11 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD
HTML files uploaded via DOCS can now be parsed, and the user prompted to upload embedded objects (e.g., images, movie files, applets). Need to add support for js and css files.

# The LearningOnline Network
# Documents
#
# $Id: londocs.pm,v 1.188 2005/06/11 13:38:47 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::lonratedt;
use Apache::lonratsrv;
use Apache::lonxml;
use Apache::loncreatecourse;
use Apache::lonnavmaps;
use HTML::Entities;
use GDBM_File;
use Apache::lonlocal;
use Cwd;

my $iconpath;

my %hash;

my $hashtied;
my %alreadyseen=();

my $hadchanges;

# Available help topics

my %help=();

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

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

sub storemap {
    my ($coursenum,$coursedom,$map)=@_;
    my ($outtext,$errtext)=
      &Apache::lonratedt::storemap('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
                                $map,1);
    if ($errtext) { return ($errtext,2); }
    
    $hadchanges=1;
    return ($errtext,0);
}

# ----------------------------------------- Return hash with valid author names

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

sub dumpbutton {
    my ($home,$other,%outhash)=&authorhosts();
    if ($home+$other==0) { return ''; }
    my $output='</td><td bgcolor="#DDDDCC">';
    if ($home) {
	return '</td><td bgcolor="#DDDDCC">'.
	    '<input type="submit" name="dumpcourse" value="'.
	    &mt('Dump Course DOCS to Construction Space').'" />'.
	    &Apache::loncommon::help_open_topic('Docs_Dump_Course_Docs');
    } else {
	return'</td><td bgcolor="#DDDDCC">'.
     &mt('Dump Course DOCS to Construction Space: available on other servers');
    }
}

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

sub dumpcourse {
    my $r=shift;
    my $html=&Apache::lonxml::xmlbegin();
    $r->print($html.'<head><title>Dump DOCS</title></head>'.
        &Apache::loncommon::bodytag('Dump Course DOCS to Construction Space').
	      '<form name="dumpdoc" method="post">');
    my ($home,$other,%outhash)=&authorhosts();
    unless ($home) { return ''; }
    my $origcrsid=$env{'request.course.id'};
    my %origcrsdata=&Apache::lonnet::coursedescription($origcrsid);
    if (($env{'form.authorspace'}) && ($env{'form.authorfolder'}=~/\w/)) {
# Do the dumping
	unless ($outhash{'home_'.$env{'form.authorspace'}}) { return ''; }
	my ($ca,$cd)=split(/\@/,$env{'form.authorspace'});
	$r->print('<h3>'.&mt('Copying Files').'</h3>');
	my $title=$env{'form.authorfolder'};
	$title=&clean($title);
	my %replacehash=();
	foreach (keys %env) {
	    if ($_=~/^form\.namefor\_(.+)/) {
		$replacehash{$1}=$env{$_};
	    }
	}
	my $crs='/uploaded/'.$env{'request.course.id'}.'/';
	$crs=~s/\_/\//g;
	foreach (keys %replacehash) {
	    my $newfilename=$title.'/'.$replacehash{$_};
	    $newfilename=&clean($newfilename);
	    my @dirs=split(/\//,$newfilename);
	    my $path='/home/'.$ca.'/public_html';
	    my $makepath=$path;
	    my $fail=0;
	    for (my $i=0;$i<$#dirs;$i++) {
		$makepath.='/'.$dirs[$i];
		unless (-e $makepath) { 
		    unless(mkdir($makepath,0777)) { $fail=1; } 
		}
	    }
	    $r->print('<br /><tt>'.$_.'</tt> => <tt>'.$newfilename.'</tt>: ');
	    if (my $fh=Apache::File->new('>'.$path.'/'.$newfilename)) {
		if ($_=~/\.(sequence|page|html|htm|xml|xhtml)$/) {
		    print $fh &Apache::loncreatecourse::rewritefile(
         &Apache::loncreatecourse::readfile($env{'request.course.id'},$_),
				     (%replacehash,$crs => '')
								    );
		} else {
		    print $fh
         &Apache::loncreatecourse::readfile($env{'request.course.id'},$_);
		       }
		$fh->close();
	    } else {
		$fail=1;
	    }
	    if ($fail) {
		$r->print('<font color="red">fail</font>');
	    } else {
		$r->print('<font color="green">ok</font>');
	    }
	}
    } else {
# Input form
	unless ($home==1) {
	    $r->print(
		      '<h3>'.&mt('Select the Construction Space').'</h3><select name="authorspace">');
	}
	foreach (sort keys %outhash) {
	    if ($_=~/^home_(.+)$/) {
		if ($home==1) {
		    $r->print(
		  '<input type="hidden" name="authorspace" value="'.$1.'" />');
		} else {
		    $r->print('<option value="'.$1.'">'.$1.' - '.
			      &Apache::loncommon::plainname(split(/\@/,$1)).'</option>');
		}
	    }
	}
	unless ($home==1) {
	    $r->print('</select>');
	}
	my $title=$origcrsdata{'description'};
	$title=~s/\s+/\_/gs;
	$title=&clean($title);
	$r->print('<h3>'.&mt('Folder in Construction Space').'</h3><input type="text" size="50" name="authorfolder" value="'.$title.'" /><br />');
	&tiehash();
	$r->print('<h3>'.&mt('Filenames in Construction Space').'</h3><table border="2"><tr><th>'.&mt('Internal Filename').'</th><th>'.&mt('Title').'</th><th>'.&mt('Save as ...').'</th></tr>');
	foreach (&Apache::loncreatecourse::crsdirlist($origcrsid,'userfiles')) {
	    $r->print('<tr><td>'.$_.'</td>');
	    my ($ext)=($_=~/\.(\w+)$/);
	    my $title=$hash{'title_'.$hash{
		'ids_/uploaded/'.$origcrsdata{'domain'}.'/'.$origcrsdata{'num'}.'/'.$_}};
	    $title=~s/&colon;/:/g;
	    $r->print('<td>'.($title?$title:'&nbsp;').'</td>');
	    unless ($title) {
		$title=$_;
	    }
	    $title=~s/\.(\w+)$//;
	    $title=&clean($title);
	    $title.='.'.$ext;
	    $r->print("\n<td><input type='text' size='60' name='namefor_".$_."' value='".$title."' /></td></tr>\n");
	}
	$r->print("</table>\n");
	&untiehash();
	$r->print(
  '<p><input type="submit" name="dumpcourse" value="'.&mt('Dump Course DOCS').'" /></p></form>');
    }
}

# ------------------------------------------------------ Generate "export" button

sub exportbutton {
    return '';
    return '</td><td bgcolor="#DDDDCC">'.
            '<input type="submit" name="exportcourse" value="'.
            &mt('Export Course to IMS').'" />'.
            &Apache::loncommon::help_open_topic('Docs_Export_Course_Docs');
}

sub exportcourse {
    my $r=shift;
    my %discussiontime = &Apache::lonnet::dump('discussiontimes',
                                               $env{'course.'.$env{'request.course.id'}.'.domain'}, $env{'course.'.$env{'request.course.id'}.'.num'});
    my $numdisc = keys %discussiontime;
    my $navmap = Apache::lonnavmaps::navmap->new();
    my $it=$navmap->getIterator(undef,undef,undef,1,undef,undef);
    my $curRes;
    my $outcome;

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

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

#Create zip file in prtspool
                my $imszipfile = '/prtspool/'.
                $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
                   time.'_'.rand(1000000000).'.zip';
                my $cwd = &Cwd::getcwd();
                my $imszip = '/home/httpd/'.$imszipfile;
                chdir $tempexport;
                open(OUTPUT, "zip -r $imszip *  2> /dev/null |");
                close(OUTPUT);
                chdir $cwd;
                $outcome .= 'Download the zip file from <a href="'.$imszipfile.'">IMS course archive</a><br />';
                if ($copyresult) {
                    $outcome .= 'The following errors occurred during export - '.$copyresult;
                }
            } else {
                $outcome = '<br />Unfortunately you will not be able to retrieve an IMS archive of this posts at this time, because there was a problem creating a manifest file.<br />';
            }
        }
	my $html=&Apache::lonxml::xmlbegin();
        $r->print($html.'<head><title>Export Course</title></head>'.
            &Apache::loncommon::bodytag('Export course to IMS content package'));
        $r->print($outcome);
        $r->print('</body></html>');
    } else {
        my $display;
        $display = '<form name="exportdoc" method="post">'."\n";
        $display .= 'Choose which items you wish to export from your course.<br /><br />';
        $display .= '<table border="0" cellspacing="0" cellpadding="3">'.
                    '<tr><td><fieldset><legend>&nbsp;<b>Content items</b></legend>'.
                    '<input type="button" value="check all" '.
                    'onclick="javascript:checkAll(document.exportdoc.archive)" />'.
                    '&nbsp;&nbsp;<input type="button" value="uncheck all"'.
                    ' onclick="javascript:uncheckAll(document.exportdoc.archive)" /></fieldset></td>'.
                    '<td>&nbsp;</td><td>&nbsp;</td>'.
                    '<td align="right"><fieldset><legend>&nbsp;<b>Discussion posts'.
                    '</b></legend><input type="button" value="check all"'.
                    ' onclick="javascript:checkAll(document.exportdoc.discussion)" />'.
                    '&nbsp;&nbsp;<input type="button" value="uncheck all"'.
                    ' onclick="javascript:uncheckAll(document.exportdoc.discussion)" /></fieldset></td>'.
                    '</tr></table>';
        my $curRes;
        my $depth = 0;
        my $count = 0;
        my $boards = 0;
        my $startcount = 5;
        my %parent = ();
        my %children = ();
        my $lastcontainer = $startcount;
        my @bgcolors = ('#F6F6F6','#FFFFFF');
        $display .= '<table cellspacing="0"><tr>'.
            '<td><b>Export content item?<br /></b></td><td>&nbsp;</td><td align="right">'."\n";
        if ($numdisc > 0) {
            $display.='<b>Export&nbsp;discussion posts?</b>'."\n";
        }
        $display.='&nbsp;</td></tr>';
        while ($curRes = $it->next()) {
            if (ref($curRes)) {
                $count ++;
            }
            if ($curRes == $it->BEGIN_MAP()) {
                $depth++;
                $parent{$depth} = $lastcontainer;
            }
            if ($curRes == $it->END_MAP()) {
                $depth--;
                $lastcontainer = $parent{$depth};
            }
            if (ref($curRes)) {
                my $symb = $curRes->symb();
                my $ressymb = $symb;
                if ($ressymb =~ m|adm/(\w+)/(\w+)/(\d+)/bulletinboard$|) {
                    unless ($ressymb =~ m|adm/wrapper/adm|) {
                        $ressymb = 'bulletin___'.$3.'___adm/wrapper/adm/'.$1.'/'.$2.'/'.$3.'/bulletinboard';
                    }
                }
                my $color = $count%2;
                $display .='<tr bgcolor='.$bgcolors[$color].'><td>'."\n".
                    '<input type="checkbox" name="archive" value="'.$count.'" ';
                if (($curRes->is_sequence()) || ($curRes->is_page())) {
                    my $checkitem = $count + $boards + $startcount;
                    $display .= 'onClick="javascript:propagateCheck('."'$checkitem'".')"';
                }
                $display .= ' />'."\n";
                for (my $i=0; $i<$depth; $i++) {
                    $display .= '<img src="/adm/lonIcons/whitespace1.gif" width="25" height="1" alt="" border="0" /><img src="/adm/lonIcons/whitespace1.gif" width="25" height="1" alt="" border="0" />'."\n";
                }
                if ($curRes->is_sequence()) {
                    $display .= '<img src="/adm/lonIcons/navmap.folder.open.gif">&nbsp;'."\n";
                    $lastcontainer = $count + $startcount + $boards;
                } elsif ($curRes->is_page()) {
                    $display .= '<img src="/adm/lonIcons/navmap.page.open.gif">&nbsp;'."\n";
                    $lastcontainer = $count + $startcount + $boards;
                }
                my $currelem = $count+$boards+$startcount;
                $children{$parent{$depth}} .= $currelem.':';
                $display .= '&nbsp;'.$curRes->title().'</td>';
                if ($discussiontime{$ressymb} > 0) {
                    $boards ++;
                    $currelem = $count+$boards+$startcount;
                    $display .= '<td>&nbsp;</td><td align="right"><input type="checkbox" name="discussion" value="'.$count.'" />&nbsp;</td>'."\n";
                } else {
                    $display .= '<td colspan="2">&nbsp;</td>'."\n";
                }
            }
        }
        my $scripttag = qq|
<script>

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

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

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

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

        $scripttag .= qq|
    if (parents[item].length > 0) {
        for (var j=0; j<parents[item].length; j++) {
            containerCheck(parents[item][j])
        }
     }   
}

</script>
        |;
	my $html=&Apache::lonxml::xmlbegin();
        $r->print($html.'<head><title>Export Course</title>'.$scripttag.'</head>'.
            &Apache::loncommon::bodytag('Export course to IMS content package'
));

        $r->print($display.'</table>'.
                  '<p><input type="hidden" name="finishexport" value="1">'.
                  '<input type="submit" name="exportcourse" value="'.
                  &mt('Export Course DOCS').'" /></p></form></body></html>');
    }
}

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

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

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

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

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

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

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

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

sub extract_media {
    my ($content,$count,$tempexport,$href,$caller) = @_;
# @$href will contain path to any embedded resources in the content.
# For LON-CAPA problems this would be images. applets etc. 
# For uploaded HTML files this would be images etc.
# paths will be in the form $count/res/$file, and urls in the $content will be rewritten with the new paths. 
    return;
}

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

# Imports the given (name, url) resources into the course
# coursenum, coursedom, and folder must precede the list
sub group_import {
    my $coursenum = shift;
    my $coursedom = shift;
    my $folder = shift;
    my $container = shift;
    my $caller = shift;
    while (@_) {
	my $name = shift;
	my $url = shift;
        if (($url =~ m#^/uploaded/$coursedom/$coursenum/(default_\d+\.)(page|sequence)$#) && ($caller eq 'londocs')) {
            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 $home=&Apache::lonnet::homeserver($coursenum,$coursedom);
            my $result=&Apache::lonnet::finishuserfileupload($coursenum,$coursedom,$home,
                                                'output',$1.$2);
            if ($result != m|^/uploaded/|) {
                $errtext.='Map not saved: A network error occured when trying to save the new map. ';
                $fatal = 2;
            }
            if ($fatal) {
                return ($errtext,$fatal);
            }
        }
	if ($url) {
	    my $idx = &Apache::lonratedt::getresidx($url);
	    $Apache::lonratedt::order[$#Apache::lonratedt::order+1]=$idx;
	    my $ext = 'false';
	    if ($url=~/^http:\/\//) { $ext = 'true'; }
	    $url =~ s/:/\&colon;/g;
	    $name =~ s/:/\&colon;/g;
	    $Apache::lonratedt::resources[$idx] = 
		join ':', ($name, $url, $ext, 'normal', 'res');
	}
    }
    return &storemap($coursenum, $coursedom, $folder.'.'.$container);
}

sub breadcrumbs {
    my ($where)=@_;
    &Apache::lonhtmlcommon::clear_breadcrumbs();
    my (@folders);
    if ($env{'form.pagepath'}) {
        @folders = split('&',$env{'form.pagepath'});
    } else {
        @folders=split('&',$env{'form.folderpath'});
    }
    my $folderpath;
    my $cpinfo='';
    if ($env{'form.markedcopy_url'}) {
	&Apache::lonnet::logthis('Found '.$env{'form.markedcopy_url'});
       $cpinfo='&markedcopy_url='.
               &Apache::lonnet::escape($env{'form.markedcopy_url'}).
               '&markedcopy_title='.
               &Apache::lonnet::escape($env{'form.markedcopy_title'});
    }
    while (@folders) {
	my $folder=shift(@folders);
	my $foldername=shift(@folders);
	if ($folderpath) {$folderpath.='&';}
	$folderpath.=$folder.'&'.$foldername;
	my $url='/adm/coursedocs?folderpath='.
	    &Apache::lonnet::escape($folderpath);
	    &Apache::lonhtmlcommon::add_breadcrumb(
		      {'href'=>$url.$cpinfo,
		       'title'=>&Apache::lonnet::unescape($foldername),
		       'text'=>'<font size="+1">'.
			   &Apache::lonnet::unescape($foldername).'</font>'
		       });
		       
						 
    }
    return &Apache::lonhtmlcommon::breadcrumbs(undef,undef,undef,undef,undef,
					       0,'nohelp');
}

sub editor {
    my ($r,$coursenum,$coursedom,$folder,$allowed,$upload_output)=@_;
    my $errtext='';
    my $fatal=0;
    my $container='sequence';
    if ($env{'form.pagepath'}) {
        $container='page';
    }
    ($errtext,$fatal)=
              &mapread($coursenum,$coursedom,$folder.'.'.$container);
    if ($#Apache::lonratedt::order<1) {
	my $idx=&Apache::lonratedt::getresidx();
	if ($idx<=0) { $idx=1; }
       	$Apache::lonratedt::order[0]=$idx;
        $Apache::lonratedt::resources[$idx]='';
    }
    if (defined($env{'form.markcopy'})) {
# Mark for copying
	my ($title,$url)=split(':',$Apache::lonratedt::resources[$Apache::lonratedt::order[$env{'form.markcopy'}]]);
	$env{'form.markedcopy_title'}=$title;
	$env{'form.markedcopy_url'}=$url;
    }
    $r->print(&breadcrumbs($folder));
    if ($fatal) {
	   $r->print('<p><font color="red">'.$errtext.'</font></p>');
    } else {
# ------------------------------------------------------------ Process commands

# ---------------- if they are for this folder and user allowed to make changes
	if (($allowed) && ($env{'form.folder'} eq $folder)) {
# set parameters and change order
	    if (defined($env{'form.setparms'})) {
		my $idx=$env{'form.setparms'};
# set parameters
		if ($env{'form.randpick_'.$idx}) {
		    &Apache::lonratedt::storeparameter($idx,'parameter_randompick',$env{'form.randpick_'.$idx},'int_pos');
		} else {
		    &Apache::lonratedt::delparameter($idx,'parameter_randompick');
		}
		if ($env{'form.hidprs_'.$idx}) {
		    &Apache::lonratedt::storeparameter($idx,'parameter_hiddenresource','yes','string_yesno');
		} else {
		    &Apache::lonratedt::delparameter($idx,'parameter_hiddenresource');
		}
		if ($env{'form.encprs_'.$idx}) {
		    &Apache::lonratedt::storeparameter($idx,'parameter_encrypturl','yes','string_yesno');
		} else {
		    &Apache::lonratedt::delparameter($idx,'parameter_encrypturl');
		}

		if ($env{'form.newpos'}) {
# change order

		    my $newpos=$env{'form.newpos'}-1;
		    my $currentpos=$env{'form.currentpos'}-1;
		    my $i;
		    my @neworder=();
		    if ($newpos>$currentpos) {
# moving stuff up
			for ($i=0;$i<$currentpos;$i++) {
			    $neworder[$i]=$Apache::lonratedt::order[$i];
			}
			for ($i=$currentpos;$i<$newpos;$i++) {
			    $neworder[$i]=$Apache::lonratedt::order[$i+1];
			}
                        $neworder[$newpos]=$Apache::lonratedt::order[$currentpos];
			for ($i=$newpos+1;$i<=$#Apache::lonratedt::order;$i++) {
			    $neworder[$i]=$Apache::lonratedt::order[$i];
			}
		    } else {
# moving stuff down
			for ($i=0;$i<$newpos;$i++) {
			    $neworder[$i]=$Apache::lonratedt::order[$i];
			}
			$neworder[$newpos]=$Apache::lonratedt::order[$currentpos];
			for ($i=$newpos+1;$i<$currentpos+1;$i++) {
			    $neworder[$i]=$Apache::lonratedt::order[$i-1];
			}
			for ($i=$currentpos+1;$i<=$#Apache::lonratedt::order;$i++) {
			    $neworder[$i]=$Apache::lonratedt::order[$i];
			}
		    }
		    @Apache::lonratedt::order=@neworder;
		}
# store the changed version

		($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
		if ($fatal) {
		    $r->print('<p><font color="red">'.$errtext.'</font></p>');
		    return;
		}
		
	    }
	    if ($env{'form.pastemarked'}) {
# paste resource to end of list
                my $url=$env{'form.markedcopy_url'};
		my $title=$env{'form.markedcopy_title'};
# Maps need to be copied first
		if (($url=~/\.(page|sequence)$/) || ($url=~/^\/uploaded\//)) {
		    $title=&mt('Copy of').' '.$title;
                    my $newid=$$.time;
		    $url=~/^(.+)\.(\w+)$/;
		    my $newurl=$1.$newid.'.'.$2;
		    my $storefn=$newurl;
                    $storefn=~s/^\/\w+\/\w+\/\w+\///;
		    &Apache::loncreatecourse::writefile
			($env{'request.course.id'},$storefn,
			 &Apache::lonnet::getfile($url));
		    $url=$newurl;
		}
		$title=~s/\</\&lt\;/g;
		$title=~s/\>/\&gt\;/g;
		$title=~s/\:/\&colon;/g;
		my $ext='false';
		if ($url=~/^http\:\/\//) { $ext='true'; }
		$url=~s/\:/\&colon;/g;
# Now insert the URL at the bottom
                my $newidx=&Apache::lonratedt::getresidx($url);
		$Apache::lonratedt::resources[$newidx]=
		    $title.':'.$url.':'.$ext.':normal:res';
		$Apache::lonratedt::order[1+$#Apache::lonratedt::order]=$newidx;
# Store the result
		($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
		if ($fatal) {
		    $r->print('<p><font color="red">'.$errtext.'</font></p>');
		    return;
		}

	    }
            $r->print($upload_output);
	    if ($env{'form.cmd'}) {
                my ($cmd,$idx)=split(/\_/,$env{'form.cmd'});
                if ($cmd eq 'del') {
		    my (undef,$url)=split(':',$Apache::lonratedt::resources[$Apache::lonratedt::order[$idx]]);
		    if (($url=~m|/+uploaded/\Q$coursedom\E/\Q$coursenum\E/|) &&
			($url!~/\.(page|sequence|problem|exam|quiz|assess|survey|form|library)$/)) {
			&Apache::lonnet::removeuploadedurl($url);
		    } else {
			&Apache::lonratedt::makezombie($Apache::lonratedt::order[$idx]);
		    }
		    for (my $i=$idx;$i<$#Apache::lonratedt::order;$i++) {
                        $Apache::lonratedt::order[$i]=
                          $Apache::lonratedt::order[$i+1];
                    }
                    $#Apache::lonratedt::order--;
                } elsif ($cmd eq 'cut') {
		    my (undef,$url)=split(':',$Apache::lonratedt::resources[$Apache::lonratedt::order[$idx]]);
		    &Apache::lonratedt::makezombie($Apache::lonratedt::order[$idx]);
		    for (my $i=$idx;$i<$#Apache::lonratedt::order;$i++) {
                        $Apache::lonratedt::order[$i]=
                          $Apache::lonratedt::order[$i+1];
                    }
                    $#Apache::lonratedt::order--;
                } elsif ($cmd eq 'up') {
		  if (($idx) && (defined($Apache::lonratedt::order[$idx-1]))) {
                    my $i=$Apache::lonratedt::order[$idx-1];
                    $Apache::lonratedt::order[$idx-1]=
			$Apache::lonratedt::order[$idx];
                    $Apache::lonratedt::order[$idx]=$i;
		   }
                } elsif ($cmd eq 'down') {
		   if (defined($Apache::lonratedt::order[$idx+1])) {
                    my $i=$Apache::lonratedt::order[$idx+1];
                    $Apache::lonratedt::order[$idx+1]=
			$Apache::lonratedt::order[$idx];
                    $Apache::lonratedt::order[$idx]=$i;
		   }
                } elsif ($cmd eq 'rename') {
                    my $ratstr = $Apache::lonratedt::resources[$Apache::lonratedt::order[$idx]];
                    my ($rtitle,@rrest)=split(/\:/,
                       $Apache::lonratedt::resources[
				       $Apache::lonratedt::order[$idx]]);
                    my $comment=
                     &HTML::Entities::decode($env{'form.title'});
                    $comment=~s/\</\&lt\;/g;
                    $comment=~s/\>/\&gt\;/g;
                    $comment=~s/\:/\&colon;/g;
		    if ($comment=~/\S/) {
			$Apache::lonratedt::resources[
				       $Apache::lonratedt::order[$idx]]=
				            $comment.':'.join(':',@rrest);
		    }
                }
# Store the changed version
		($errtext,$fatal)=&storemap($coursenum,$coursedom,
					    $folder.'.'.$container);
		if ($fatal) {
		    $r->print('<p><font color="red">'.$errtext.'</font></p>');
		    return;
		}
            }
# Group import/search
	    if ($env{'form.importdetail'}) {
		my @imports;
		foreach (split(/\&/,$env{'form.importdetail'})) {
		    if (defined($_)) {
			my ($name,$url)=split(/\=/,$_);
			$name=&Apache::lonnet::unescape($name);
			$url=&Apache::lonnet::unescape($url);
			push @imports, $name, $url;
		    }
		}
# Store the changed version
		($errtext,$fatal)=group_import($coursenum, $coursedom, $folder,
					       $container,'londocs',@imports);
		if ($fatal) {
		    $r->print('<p><font color="red">'.$errtext.'</font></p>');
		    return;
		}
            }
# Loading a complete map
	   if (($env{'form.importmap'}) && ($env{'form.loadmap'})) {
	       foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
		   my ($title,$url,$ext,$type)=split(/\:/,$_);
                   my $idx=&Apache::lonratedt::getresidx($url);
                   $Apache::lonratedt::resources[$idx]=$_;
                   $Apache::lonratedt::order
		       [$#Apache::lonratedt::order+1]=$idx;
	       }

# Store the changed version
	       ($errtext,$fatal)=&storemap($coursenum,$coursedom,
					   $folder.'.'.$container);
	       if ($fatal) {
		   $r->print('<p><font color="red">'.$errtext.'</font></p>');
		   return;
	       }
           }
       }
# ---------------------------------------------------------------- End commands
# ---------------------------------------------------------------- Print screen
        my $idx=0;
	my $shown=0;
        $r->print('<table>');
        foreach (@Apache::lonratedt::order) {
           my ($name,$url)=split(/\:/,$Apache::lonratedt::resources[$_]);
           unless ($name) {  $name=(split(/\//,$url))[-1]; }
           unless ($name) { $idx++; next; }
           $r->print(&entryline($idx,$name,$url,$folder,$allowed,$_,$coursenum));
           $idx++;
	   $shown++;
        }
	unless ($shown) {
	    $r->print('<tr><td>'.&mt('Currently no documents.').'</td></tr>');
	}
        $r->print("\n</table>\n");
	if ($env{'form.markedcopy_url'}) {
	    $r->print(<<ENDPASTE);
<p><form name="pasteform" action="/adm/coursedocs" method="post">
<input type="hidden" name="markedcopy_url" value="$env{'form.markedcopy_url'}" />
<input type="hidden" name="markedcopy_title" value="$env{'form.markedcopy_title'}" />
ENDPASTE
            $r->print(
	   '<input type="submit" name="pastemarked" value="'.&mt('Paste').
		      '" /> '.&Apache::loncommon::filedescription(
		(split(/\./,$env{'form.markedcopy_url'}))[-1]).': '.
		      $env{'form.markedcopy_title'});
            if ($container eq 'page') {
		$r->print(<<PAGEINFO);
<input type="hidden" name="pagepath" value="$env{'form.pagepath'}" />
<input type="hidden" name="pagesymb" value="$env{'form.pagesymb'}" />
PAGEINFO
            } else {
		$r->print(<<FOLDERINFO);
<input type="hidden" name="folderpath" value="$env{'form.folderpath'}" />
FOLDERINFO
	    }
	    $r->print('</form></p>');
	}
    }
}

sub process_file_upload {
    my ($upload_output,$coursenum,$coursedom,$allfiles,$codebase) = @_;
# upload a file, if present
    my $parseaction;
    if ($env{'form.parserflag'}) {
        $parseaction = 'parse';
    }
    my $phase_status;
    my $folder=$env{'form.folder'};
    if ($folder eq '' || $folder eq 'supplemental') {
        $folder='default';
    }
    if ( ($folder=~/^$1/) || ($1 eq 'default') ) {
        my $errtext='';
        my $fatal=0;
        my $container='sequence';
        if ($env{'form.pagepath'}) {
            $container='page';
        }
        ($errtext,$fatal)=
              &mapread($coursenum,$coursedom,$folder.'.'.$container);
        if ($#Apache::lonratedt::order<1) {
            $Apache::lonratedt::order[0]=1;
            $Apache::lonratedt::resources[1]='';
        }
        if ($fatal) {
            return 'failed';
        }
        my $destination = 'docs/';
        if ($folder eq 'default') {
            $destination .= 'default/';
        } elsif ($folder =~ /^default_(\d+)$/) {
            $destination .=  $1.'/';
        }
# this is for a course, not a user, so set coursedoc flag
# probably the only place in the system where this should be "1"
        my $newidx=&Apache::lonratedt::getresidx();
        $destination .= $newidx;
        my $url=&Apache::lonnet::userfileupload('uploaddoc',1,$destination,$parseaction,$allfiles,$codebase);
        my $ext='false';
        if ($url=~/^http\:\/\//) { $ext='true'; }
        $url=~s/\:/\&colon;/g;
        my $comment=$env{'form.comment'};
        $comment=~s/\</\&lt\;/g;
        $comment=~s/\>/\&gt\;/g;
        $comment=~s/\:/\&colon;/g;
        if ($folder=~/^supplemental/) {
              $comment=time.'___&&&___'.$env{'user.name'}.'___&&&___'.
                  $env{'user.domain'}.'___&&&___'.$comment;
        }

        $Apache::lonratedt::resources[$newidx]=
                  $comment.':'.$url.':'.$ext.':normal:res';
        $Apache::lonratedt::order[$#Apache::lonratedt::order+1]=
                                                              $newidx;
        ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
        if ($fatal) {
            $$upload_output .= '<p><font color="red">'.$errtext.'</font></p>';
            return 'failed';
        } else {
            if ($parseaction eq 'parse') {
                my $total_embedded = keys %{$allfiles};
                if ($total_embedded > 0) {
                    my $num = 0;
                    $$upload_output .= 'This file contains embedded multimedia objects, which need to be uploaded to LON-CAPA.<br />
   <form name="upload_embedded" action="/adm/coursedocs"
                  method="post" enctype="multipart/form-data">
   <input type="hidden" name="folderpath" value="'.$env{'form.folderpath'}.'" />   <input type="hidden" name="cmd" value="upload_embedded" />
   <input type="hidden" name="newidx" value="'.$newidx.'" />
   <input type="hidden" name="primaryurl" value="'.&Apache::lonnet::escape($url).'" />
   <input type="hidden" name="phasetwo" value="'.$total_embedded.'" />';
                    $$upload_output .= '<b>Upload embedded files</b>:<br />
   <table>';
                    foreach my $embed_file (keys %{$allfiles}) {
                        $$upload_output .= '<tr><td>'.$embed_file.
          '<input name="embedded_item_'.$num.'" type="file">
           <input name="embedded_orig_'.$num.'" type="hidden" value="'.&Apache::lonnet::escape($embed_file).'"/>';
                        my $attrib;
                        if (@{$$allfiles{$embed_file}} > 1) {
                            $attrib = join(':',@{$$allfiles{$embed_file}});
                        } else {
                            $attrib = $$allfiles{$embed_file}[0];
                        }
                        $$upload_output .=
           '<input name="embedded_attrib_'.$num.'" type="hidden" value="'.$attrib.'" />';
                        if (exists($$codebase{$embed_file})) {
                            $$upload_output .= 
          '<input name="codebase_'.$num.'" type="hidden" value="'.&Apache::lonnet::escape($$codebase{$embed_file}).'" />';
                        }
                        $$upload_output .= '</td></tr>';
                        $num ++;
                    }
                    $phase_status = 'phasetwo';
                    $$upload_output .= '</table><br />
   <input type ="submit" value="Complete upload" />
   </form>';
                } else {
                    $$upload_output .= 'No embedded items identified<br />';
                }
            }
        }
    }
    return $phase_status;
}

sub process_secondary_uploads {
    my ($upload_output,$coursedom,$coursenum,$formname,$num,$newidx) = @_;
    my $folder=$env{'form.folder'};
    my $destination = 'docs/';
    if ($folder eq 'default') {
        $destination .= 'default/';
    } elsif ($folder =~ /^default_(\d+)$/) {
        $destination .=  $1.'/';
    }
    $destination .= $newidx;
    my ($url,$filename);
    $url=&Apache::lonnet::userfileupload($formname.$num,1,$destination);
    ($filename) = ($url =~ m-^/uploaded/$coursedom/$coursenum/$destination/(.+)$-);
    return $filename;
}

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

sub entryline {
    my ($index,$title,$url,$folder,$allowed,$residx,$coursenum)=@_;
    $title=~s/\&colon\;/\:/g;
    $title=&HTML::Entities::encode(&HTML::Entities::decode(
     &Apache::lonnet::unescape($title)),'"<>&\'');
    my $renametitle=$title;
    my $foldertitle=$title;
    my $pagetitle=$title;
    my $orderidx=$Apache::lonratedt::order[$index];
    if ($title=~ /^(\d+)___&amp;&amp;&amp;___(\w+)___&amp;&amp;&amp;___(\w+)___&amp;&amp;&amp;___(.*)$/	) { 
	$foldertitle=&Apache::lontexconvert::msgtexconverted($4);
	$renametitle=$4;
	$title='<i>'.&Apache::lonlocal::locallocaltime($1).'</i> '.
	    &Apache::loncommon::plainname($2,$3).': <br />'.
	    $foldertitle;
    }
    $renametitle=~s/\&quot\;/\\\"/g;
    my $line='<tr>';
# Edit commands
    my $container;
    my $folderpath;
    if ($env{'form.folderpath'}) {
        $container = 'sequence';
	$folderpath=&Apache::lonnet::escape($env{'form.folderpath'});
	# $htmlfoldername=&HTML::Entities::encode($env{'form.foldername'},'<>&"');
    }
    my ($pagepath,$pagesymb);
    if ($env{'form.pagepath'}) {
        $container = 'page';
        $pagepath=&Apache::lonnet::escape($env{'form.pagepath'});
        $pagesymb=&Apache::lonnet::escape($env{'form.pagesymb'});
    }
    my $cpinfo='';
    if ($env{'form.markedcopy_url'}) {
       $cpinfo='&markedcopy_url='.
               &Apache::lonnet::escape($env{'form.markedcopy_url'}).
               '&markedcopy_title='.
               &Apache::lonnet::escape($env{'form.markedcopy_title'});
    }
    if ($allowed) {
	my $incindex=$index+1;
	my $selectbox='';
	if (($folder!~/^supplemental/) &&
	    ($#Apache::lonratedt::order>0) && 
	    ((split(/\:/,
	     $Apache::lonratedt::resources[$Apache::lonratedt::order[0]]))[1] 
	     ne '') && 
	    ((split(/\:/,
	     $Apache::lonratedt::resources[$Apache::lonratedt::order[1]]))[1] 
	     ne '')) {
	    $selectbox=
		'<input type="hidden" name="currentpos" value="'.$incindex.'" />'.
		'<select name="newpos" onChange="this.form.submit()">';
	    for (my $i=1;$i<=$#Apache::lonratedt::order+1;$i++) {
		if ($i==$incindex) {
		    $selectbox.='<option value="" selected="1">('.$i.')</option>';
		} else {
		    $selectbox.='<option value="'.$i.'">'.$i.'</option>';
		}
	    }
	    $selectbox.='</select>';
	}
	my %lt=&Apache::lonlocal::texthash(
                'up' => 'Move Up',
		'dw' => 'Move Down',
		'rm' => 'Remove',
                'ct' => 'Cut',
		'rn' => 'Rename',
		'cp' => 'Copy');
        if ($env{'form.pagepath'}) {
            $line.=(<<END);
<form name="entry_$index" action="/adm/coursedocs" method="post">
<input type="hidden" name="pagepath" value="$env{'form.pagepath'}" />
<input type="hidden" name="pagesymb" value="$env{'form.pagesymb'}" />
<input type="hidden" name="markedcopy_url" value="$env{'form.markedcopy_url'}" />
<input type="hidden" name="markedcopy_title" value="$env{'form.markedcopy_title'}" />
<input type="hidden" name="setparms" value="$orderidx" />
<td><table border='0' cellspacing='2' cellpadding='0'>
<tr><td bgcolor="#DDDDDD">
<a href='/adm/coursedocs?cmd=up_$index&pagepath=$pagepath&pagesymb=$pagesymb$cpinfo'>
<img src="${iconpath}move_up.gif" alt='$lt{'up'}' border='0' /></a></td></tr>
<tr><td bgcolor="#DDDDDD">
<a href='/adm/coursedocs?cmd=down_$index&pagepath=$pagepath&pagesymb=$pagesymb$cpinfo'>
<img src="${iconpath}move_down.gif" alt='$lt{'dw'}' border='0' /></a></td></tr>
</table></td>
<td>$selectbox
</td><td bgcolor="#DDDDDD">
<a href='javascript:removeres("$pagepath","$index","$renametitle","page","$pagesymb");'>
<font size="-2" color="#990000">$lt{'rm'}</font></a>
<a href='javascript:cutres("$pagepath","$index","$renametitle","page","$pagesymb");'>
<font size="-2" color="#550044">$lt{'ct'}</font></a>
<a href='javascript:changename("$pagepath","$index","$renametitle","page","$pagesymb");'>
<font size="-2" color="#009900">$lt{'rn'}</font></a>
<a href='javascript:markcopy("$pagepath","$index","$renametitle","page","$pagesymb");'>
<font size="-2" color="#000099">$lt{'cp'}</font></a></td>
END
        } else {
            $line.=(<<END); 
<form name="entry_$index" action="/adm/coursedocs" method="post">
<input type="hidden" name="folderpath" value="$env{'form.folderpath'}" />
<input type="hidden" name="markedcopy_url" value="$env{'form.markedcopy_url'}" />
<input type="hidden" name="markedcopy_title" value="$env{'form.markedcopy_title'}" />
<input type="hidden" name="setparms" value="$orderidx" />
<td><table border='0' cellspacing='2' cellpadding='0'>
<tr><td bgcolor="#DDDDDD">
<a href='/adm/coursedocs?cmd=up_$index&folderpath=$folderpath$cpinfo'>
<img src="${iconpath}move_up.gif" alt='$lt{'up'}' border='0' /></a></td></tr>
<tr><td bgcolor="#DDDDDD">
<a href='/adm/coursedocs?cmd=down_$index&folderpath=$folderpath$cpinfo'>
<img src="${iconpath}move_down.gif" alt='$lt{'dw'}' border='0' /></a></td></tr>
</table></td>
<td>$selectbox
</td><td bgcolor="#DDDDDD">
<a href='javascript:removeres("$folderpath","$index","$renametitle","sequence");'>
<font size="-2" color="#990000">$lt{'rm'}</font></a>
<a href='javascript:cutres("$folderpath","$index","$renametitle","sequence");'>
<font size="-2" color="#550044">$lt{'ct'}</font></a>
<a href='javascript:changename("$folderpath","$index","$renametitle","sequence");'>
<font size="-2" color="#009900">$lt{'rn'}</font></a>
<a href='javascript:markcopy("$folderpath","$index","$renametitle","sequence");'>
<font size="-2" color="#000099">$lt{'cp'}</font></a></td>
END
        }
    }
# Figure out what kind of a resource this is
    my ($extension)=($url=~/\.(\w+)$/);
    my $uploaded=($url=~/^\/*uploaded\//);
    my $icon=&Apache::loncommon::icon($url);
    my $isfolder=0;
    my $ispage=0;
    my $folderarg;
    my $pagearg;
    my $pagefile;
    if ($uploaded) {
	if ($extension eq 'sequence') {
	    $icon=$iconpath.'/folder_closed.gif';
	    $url=~/$coursenum\/([\/\w]+)\.sequence$/;
	    $url='/adm/coursedocs?';
	    $folderarg=$1;
	    $isfolder=1;
        } elsif ($extension eq 'page') {
            $icon=$iconpath.'/page.gif';
            $url=~/$coursenum\/([\/\w]+)\.page$/;
            $pagearg=$1;
            $url='/adm/coursedocs?';
            $ispage=1;
	} else {
	    &Apache::lonnet::allowuploaded('/adm/coursedoc',$url);
	}
    }
    $url=~s/^http\&colon\;\/\//\/adm\/wrapper\/ext\//;
    if ((!$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;
	}
	$url.=(($url=~/\?/)?'&':'?').'symb='.&Apache::lonnet::escape($symb);
	if ($container eq 'page') {
	    my $symb=$env{'form.pagesymb'};
	    	    
	    $url=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($symb))[2]);
	    $url.=(($url=~/\?/)?'&':'?').'symb='.&Apache::lonnet::escape($symb);
	}
    }
    my $parameterset='&nbsp;';
    if ($isfolder) {
	my $foldername=&Apache::lonnet::escape($foldertitle);
	my $folderpath=$env{'form.folderpath'};
	if ($folderpath) { $folderpath.='&' };
	$folderpath.=$folderarg.'&'.$foldername;
	$url.='folderpath='.&Apache::lonnet::escape($folderpath).$cpinfo;
	$parameterset='<label>'.&mt('Randomly Pick: ').
	    '<input type="text" size="4" onChange="this.form.submit()" name="randpick_'.$orderidx.'" value="'.
	    (&Apache::lonratedt::getparameter($orderidx,
                                              'parameter_randompick'))[0].
                                              '" />'.
'<font size="-2"><a href="javascript:void(0)">'.&mt('Store').'</a></font></label>';
       
    }
    if ($ispage) {
        my $pagename=&Apache::lonnet::escape($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');
	}
	$url.='pagepath='.&Apache::lonnet::escape($pagepath).
	    '&pagesymb='.&Apache::lonnet::escape($symb).$cpinfo;
    }
    $line.='<td bgcolor="#FFFFBB"><a href="'.$url.'"><img src="'.$icon.
	'" border="0"></a></td>'.
        "<td bgcolor='#FFFFBB'><a href='$url'>$title</a></td>";
    if (($allowed) && ($folder!~/^supplemental/)) {
 	my %lt=&Apache::lonlocal::texthash(
 			      'hd' => 'Hidden',
 			      'ec' => 'URL hidden');
	my $enctext=
	    ((&Apache::lonratedt::getparameter($orderidx,'parameter_encrypturl'))[0]=~/^yes$/i?' checked="1"':'');
	my $hidtext=
	    ((&Apache::lonratedt::getparameter($orderidx,'parameter_hiddenresource'))[0]=~/^yes$/i?' checked="1"':'');
	$line.=(<<ENDPARMS);
<td bgcolor="#BBBBFF"><font size='-2'>
<nobr><label><input type="checkbox" name="hidprs_$orderidx" onClick="this.form.submit()" $hidtext /> $lt{'hd'}</label></nobr></td>
<td bgcolor="#BBBBFF"><font size='-2'>
<nobr><label><input type="checkbox" name="encprs_$orderidx" onClick="this.form.submit()" $enctext /> $lt{'ec'}</label></nobr></td>
<td bgcolor="#BBBBFF"><font size="-2">$parameterset</font></td>
ENDPARMS
    }
    $line.="</form></tr>";
    return $line;
}

# ---------------------------------------------------------------- tie the hash

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;
}

# --------------------------------------------------------------- check on this

sub checkonthis {
    my ($r,$url,$level,$title)=@_;
    $url=&Apache::lonnet::unescape($url);
    $alreadyseen{$url}=1;
    $r->rflush();
    if (($url) && ($url!~/^\/uploaded\//) && ($url!~/\*$/)) {
       $r->print("\n<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('<font color="green">'.&mt('ok').'</font>');
             $r->rflush();
             &Apache::lonnet::countacc($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" /><font color="red"><b>'.
			  $errorcount.' '.
				  &mt('error(s)').'</b></font> ');
                     }
		     if ($warningcount) {
                        $r->print('<font color="blue">'.
			  $warningcount.' '.
				  &mt('warning(s)').'</font>');
                     }
                 } else {
                     $r->print('<font color="green">'.&mt('ok').'</font>');
                 }
                 $r->rflush();
             }
	     my $dependencies=
                &Apache::lonnet::metadata($url,'dependencies');
             foreach (split(/\,/,$dependencies)) {
		 if (($_=~/^\/res\//) && (!$alreadyseen{$_})) {
                    &checkonthis($r,$_,$level+1);
                 }
             }
          } elsif ($result eq 'unavailable') {
             $r->print('<font color="red"><b>'.&mt('connection down').'</b></font>');
          } elsif ($result eq 'not_found') {
	      unless ($url=~/\$/) {
		  $r->print('<font color="red"><b>'.&mt('not found').'</b></font>');
	      } else {
		  $r->print('<font color="yellow"><b>'.&mt('unable to verify variable URL').'</b></font>');
	      }
          } else {
             $r->print('<font color="red"><b>'.&mt('access denied').'</b></font>');
          }
      }
   }
}


#
# -------------------------------------------------------------- Verify Content
# 
sub verifycontent {
   my $r=shift; 
   my $loaderror=&Apache::lonnet::overloaderror($r);
   if ($loaderror) { return $loaderror; }
   my $html=&Apache::lonxml::xmlbegin();
   $r->print($html.'<head><title>Verify Content</title></head>'.
              &Apache::loncommon::bodytag('Verify Course Documents'));
   $hashtied=0;
   undef %alreadyseen;
   %alreadyseen=();
   &tiehash();
   foreach (keys %hash) {
       if ($hash{$_}=~/\.(page|sequence)$/) {
	   if (($_=~/^src_/) && ($alreadyseen{&Apache::lonnet::unescape($hash{$_})})) {
	       $r->print('<hr /><font color="red">'.
			 &mt('The following sequence or page is included more than once in your course: ').
			 &Apache::lonnet::unescape($hash{$_}).'</font><br />'.
			 &mt('Note that grading records for problems included in this sequence or folder will overlap.<hr />'));
	   }
       }
       if (($_=~/^src\_(.+)$/) && (!$alreadyseen{&Apache::lonnet::unescape($hash{$_})})) {
           &checkonthis($r,$hash{$_},0,$hash{'title_'.$1});
       }
   }
   &untiehash();
   $r->print('<h1>'.&mt('Done').'.</h1>'.'<a href="/adm/coursedocs">'.
	     &mt('Return to DOCS').'</a>');
}

# -------------------------------------------------------------- Check Versions

sub checkversions {
    my $r=shift;
    my $html=&Apache::lonxml::xmlbegin();
    $r->print($html.'<head><title>Check Versions</title></head>'.
              &Apache::loncommon::bodytag('Check Course Document Versions'));
    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'}) {
	$haschanged=1;
	foreach (keys %hash) {
	    if ($_=~/^ids\_(\/res\/.+)$/) {
		$newsetversions{$1}='mostrecent';
	    }
	}
    } elsif ($env{'form.setcurrent'}) {
	$haschanged=1;
	foreach (keys %hash) {
	    if ($_=~/^ids\_(\/res\/.+)$/) {
		my $getvers=&Apache::lonnet::getversion($1);
		if ($getvers>0) {
		    $newsetversions{$1}=$getvers;
		}
	    }
	}
    } elsif ($env{'form.setversions'}) {
	$haschanged=1;
	foreach (keys %env) {
	    if ($_=~/^form\.set_version_(.+)$/) {
		my $src=$1;
		if (($env{$_}) && ($env{$_} ne $setversions{$src})) {
		    $newsetversions{$src}=$env{$_};
		}
	    }
	}
    }
    if ($haschanged) {
        if (&Apache::lonnet::put('resourceversions',\%newsetversions,
			  $env{'course.'.$env{'request.course.id'}.'.domain'},
			  $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') {		
	    $r->print('<h1>'.&mt('Your Version Settings have been Stored').'</h1>');
	} else {
	    $r->print('<h1><font color="red">'.&mt('An Error Occured while Attempting to Store your Version Settings').'</font></h1>');
	}
	&mark_hash_old();
    }
    &changewarning($r,'');
    if ($env{'form.timerange'} eq 'all') {
# show all documents
	$header=&mt('All Documents in Course');
	$allsel=1;
	foreach (keys %hash) {
	    if ($_=~/^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 Course',
	       'lm' => 'Version changes since last Month',
	       'lw' => 'Version changes since last Week',
	       'sy' => 'Version changes since Yesterday',
               'al' => 'All Resources (possibly large output)',
	       'sd' => 'Display',
	       'fi' => 'File',
	       'md' => 'Modification Date',
               'mr' => 'Most recently published Version',
	       've' => 'Version used in Course',
               'vu' => 'Set Version to be used in Course',
'sv' => 'Set Versions to be used in Course according to Selections below',
'sm' => 'Keep all Resources up-to-date with most recent Versions (default)',
'sc' => 'Set all Resource Versions to current Version (Fix Versions)',
	       'di' => 'Differences');
    $r->print(<<ENDHEADERS);
<form action="/adm/coursedocs" method="post">
<input type="hidden" name="versions" value="1" />
<input type="submit" name="setmostrecent" value="$lt{'sm'}" />
<input type="submit" name="setcurrent" value="$lt{'sc'}" /><hr />
<select name="timerange">
<option value='all' $allsel>$lt{'al'}</option>
<option value="-1" $startsel>$lt{'st'}</option>
<option value="2592000" $monthsel>$lt{'lm'}</option>
<option value="604800" $weeksel>$lt{'lw'}</option>
<option value="86400" $daysel>$lt{'sy'}</option>
</select>
<input type="submit" name="display" value="$lt{'sd'}" />
<h3>$header</h3>
<input type="submit" name="setversions" value="$lt{'sv'}" />
<table border="0">
ENDHEADERS
    foreach (sort keys %changes) {
	if ($changes{$_}>$starttime) {
	    my ($root,$extension)=($_=~/^(.*)\.(\w+)$/);
	    my $currentversion=&Apache::lonnet::getversion($_);
	    if ($currentversion<0) {
		$currentversion=&mt('Could not be determined.');
	    }
	    my $linkurl=&Apache::lonnet::clutter($_);
	    $r->print(
		      '<tr><td colspan="5"><br /><br /><font size="+1"><b>'.
		      &Apache::lonnet::gettitle($linkurl).
                      '</b></font></td></tr>'.
                      '<tr><td>&nbsp;&nbsp;&nbsp;</td>'.
                      '<td colspan="4">'.
                      '<a href="'.$linkurl.'" target="cat">'.$linkurl.
		      '</a></td></tr>'.
                      '<tr><td></td>'.
                      '<td title="'.$lt{'md'}.'">'.
		      &Apache::lonlocal::locallocaltime(
                           &Apache::lonnet::metadata($root.'.'.$extension,
                                                     'lastrevisiondate')
                                                        ).
                      '</td>'.
                      '<td title="'.$lt{'mr'}.'"><nobr>Most Recent: '.
                      '<font size="+1">'.$currentversion.'</font>'.
                      '</nobr></td>'.
                      '<td title="'.$lt{'ve'}.'"><nobr>In Course: '.
                      '<font size="+1">');
# Used in course
	    my $usedversion=$hash{'version_'.$linkurl};
	    if (($usedversion) && ($usedversion ne 'mostrecent')) {
		$r->print($usedversion);
	    } else {
		$r->print($currentversion);
	    }
	    $r->print('</font></nobr></td><td title="'.$lt{'vu'}.'">'.
                      '<nobr>Use: ');
# Set version
	    $r->print(&Apache::loncommon::select_form($setversions{$linkurl},
						      'set_version_'.$linkurl,
						      ('select_form_order' =>
						       ['',1..$currentversion,'mostrecent'],
						       '' => '',
						       'mostrecent' => 'most recent',
						       map {$_,$_} (1..$currentversion))));
	    $r->print('</nobr></td></tr><tr><td></td>');
	    my $lastold=1;
	    for (my $prevvers=1;$prevvers<$currentversion;$prevvers++) {
		my $url=$root.'.'.$prevvers.'.'.$extension;
		if (&Apache::lonnet::metadata($url,'lastrevisiondate')<
		    $starttime) {
		    $lastold=$prevvers;
		}
	    }
            # 
            # Code to figure out how many version entries should go in
            # each of the four columns
            my $entries_per_col = 0;
            my $num_entries = ($currentversion-$lastold);
            if ($num_entries % 4 == 0) {
                $entries_per_col = $num_entries/4;
            } else {
                $entries_per_col = $num_entries/4 + 1;
            }
            my $entries_count = 0;
            $r->print('<td valign="top"><font size="-2">'); 
            my $cols_output = 1;
            for (my $prevvers=$lastold;$prevvers<$currentversion;$prevvers++) {
		my $url=$root.'.'.$prevvers.'.'.$extension;
		$r->print('<nobr><a href="'.&Apache::lonnet::clutter($url).
			  '">'.&mt('Version').' '.$prevvers.'</a> ('.
			  &Apache::lonlocal::locallocaltime(
                                &Apache::lonnet::metadata($url,
                                                          'lastrevisiondate')
                                                            ).
			  ')');
		if (&Apache::loncommon::fileembstyle($extension) eq 'ssi') {
                    $r->print(' <a href="/adm/diff?filename='.
			      &Apache::lonnet::clutter($root.'.'.$extension).
			      '&versionone='.$prevvers.
			      '">'.&mt('Diffs').'</a>');
		}
		$r->print('</nobr><br />');
                if (++$entries_count % $entries_per_col == 0) {
                    $r->print('</font></td>');
                    if ($cols_output != 4) {
                        $r->print('<td valign="top"><font size="-2">');
                        $cols_output++;
                    }
                }
	    }
            while($cols_output++ < 4) {
                $r->print('</font></td><td><font>')
            }
	    $r->print('</font></td></tr>'."\n");
	}
    }
    $r->print('</table></form>');
    $r->print('<h1>'.&mt('Done').'.</h1>');

    &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 $path=&Apache::lonnet::escape($env{'form.folderpath'});
    if (!defined($url)) {
	if (defined($env{'form.pagepath'})) {
	    $pathvar='pagepath';
	    $path=&Apache::lonnet::escape($env{'form.pagepath'});
	    $path.='&amp;symb='.&Apache::lonnet::escape($env{'form.pagesymb'});
	}
	$url='/adm/coursedocs?'.$pathvar.'='.$path;
    }
    if (!defined($message)) {
	$message='Changes will become active for your current session after [_1], or the next time you log in.';
    }
    $r->print("\n\n".
'<script>function reinit(tf) { tf.submit();'.$postexec.' }</script>'."\n". 
'<form name="reinitform" method="post" action="/adm/roles" target="loncapaclient">'.
'<input type="hidden" name="orgurl" value="'.$url.
'" /><input type="hidden" name="selectrole" value="1" /><h3><font color="red">'.
&mt($message,' <input type="hidden" name="'.
    $env{'request.role'}.'" value="1" /><input type="button" value="'.
    &mt('re-initializing course').'" onClick="reinit(this.form)" />').
$help{'Caching'}.'</font></h3></form>'."\n\n");
}

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

# --------------------------------------------- Initialize help topics for this
  foreach ('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') {
      $help{$_}=&Apache::loncommon::help_open_topic('Docs_'.$_);
  }
    # 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 Info'} = &Apache::loncommon::help_open_topic(
		  'Docs_About_My_Personal_Info,Docs_Editing_Templated_Pages');
    $help{'Caching'} = &Apache::loncommon::help_open_topic('Caching');

  if ($env{'form.verify'}) {
      &verifycontent($r);
  } elsif ($env{'form.versions'}) {
      &checkversions($r);
  } elsif ($env{'form.dumpcourse'}) {
      &dumpcourse($r);
  } elsif ($env{'form.exportcourse'}) {
      &exportcourse($r);
  } else {
# is this a standard course?

    my $standard=($env{'request.course.uri'}=~/^\/uploaded\//);
    my $forcestandard = 0;
    my $forcesupplement;
    my $script='';
    my $allowed;
    my $events='';
    my $showdoc=0;
    my $containertag;
    my $uploadtag;
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
    ['folderpath','pagepath','pagesymb','markedcopy_url','markedcopy_title']);
    if ($env{'form.folderpath'}) {
	my (@folderpath)=split('&',$env{'form.folderpath'});
	$env{'form.foldername'}=&Apache::lonnet::unescape(pop(@folderpath));
	$env{'form.folder'}=pop(@folderpath);
    }
    if ($env{'form.pagepath'}) {
        my (@pagepath)=split('&',$env{'form.pagepath'});
        $env{'form.pagename'}=&Apache::lonnet::unescape(pop(@pagepath));
        $env{'form.folder'}=pop(@pagepath);
        $containertag = '<input type="hidden" name="pagepath" value="" />'.
	    '<input type="hidden" name="pagesymb" value="" />';
        $uploadtag = '<input type="hidden" name="pagepath" value="'.$env{'form.pagepath'}.'" />'.
	    '<input type="hidden" name="pagesymb" value="'.$env{'form.pagesymb'}.'" />';
    }
    if ($r->uri=~/^\/adm\/coursedocs\/showdoc\/(.*)$/) {
       $showdoc='/'.$1;
    }
    unless ($showdoc) { # got called from remote
       if (($env{'form.folder'}=~/^default_/) || 
          ($env{'form.folder'} =~ m#^\d+/(pages|sequences)/#)) {
           $forcestandard = 1;
       } 
       $forcesupplement=($env{'form.folder'}=~/^supplemental_/);

# does this user have privileges to post, etc?
       $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
       if ($allowed) { 
         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['cmd']);
         $script=&Apache::lonratedt::editscript('simple'); 
       }
    } else { # got called in sequence from course
       $allowed=0;
       $script='</script>'.&Apache::lonmenu::registerurl(1,undef).'<script>';
       $events='onLoad="'.&Apache::lonmenu::loadevents.
           '" onUnload="'.&Apache::lonmenu::unloadevents.'"';
    }

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

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

# graphics settings

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

    my $now=time;

# print screen
       my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDDOCUMENT);
$html
<head>
<title>The LearningOnline Network with CAPA</title>
<script>
$script
</script>
ENDDOCUMENT
   if ($allowed) {
    $r->print(<<ENDNEWSCRIPT);
<script>
function makenewfolder(targetform,folderseq) {
    var foldername=prompt('Name of New Folder','New Folder');
    if (foldername) {
	targetform.importdetail.value=foldername+"="+folderseq;
        targetform.submit();
    }
}

function makenewpage(targetform,folderseq) {
    var pagename=prompt('Name of New Page','New Page');
    if (pagename) {
        targetform.importdetail.value=pagename+"="+folderseq;
        targetform.submit();
    }
}

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

function makeexamupload() {
   var title=prompt('Listed Title for the Uploaded Score');
   if (title) { 
    this.document.forms.newexamupload.importdetail.value=
	title+'=/res/lib/templates/examupload.problem';
    this.document.forms.newexamupload.submit();
   }
}

function makesmppage() {
   var title=prompt('Listed Title for the Page');
   if (title) { 
    this.document.forms.newsmppg.importdetail.value=
	title+'=/adm/$udom/$uname/$now/smppg';
    this.document.forms.newsmppg.submit();
   }
}

function makesmpproblem() {
   var title=prompt('Listed Title for the Problem');
   if (title) { 
    this.document.forms.newsmpproblem.importdetail.value=
	title+'=/res/lib/templates/simpleproblem.problem';
    this.document.forms.newsmpproblem.submit();
   }
}

function makebulboard() {
   var title=prompt('Listed Title for the Bulletin Board');
   if (title) {
    this.document.forms.newbul.importdetail.value=
	title+'=/adm/$udom/$uname/$now/bulletinboard';
    this.document.forms.newbul.submit();
   }
}

function makeabout() {
   var user=prompt("Enter user\@domain for User's 'About Me' Page");
   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=
		   'About '+user+'=/adm/'+comp[1]+'/'+comp[0]+'/aboutme';
	       this.document.forms.newaboutsomeone.submit();
	   } else {
               alert("Not a valid user\@domain");
           }
       } else {
           alert("Please enter both user and domain in the format user\@domain"); 
       }
   }
}

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;
    eval
     ('this.document.forms.'+form+'.importdetail.value="'+title+'='+url+
    '";this.document.forms.'+form+'.submit();');
}

function changename(folderpath,index,oldtitle,container,pagesymb) {
    var title=prompt('New Title',oldtitle);
    if (title) {
	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) {
    if (confirm('WARNING: Removing a resource makes associated grades and scores inaccessible!\\nRemove "'+oldtitle+'"?')) {
	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) {
    if (confirm('WARNING: Cutting a resource makes associated grades and scores inaccessible!\\nGrades remain inaccessible if resource is pasted into another folder.\\nCut "'+oldtitle+'"?')) {
	this.document.forms.renameform.cmd.value='cut_'+index;
	this.document.forms.renameform.markcopy.value=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 markcopy(folderpath,index,oldtitle,container,pagesymb) {
    this.document.forms.renameform.markcopy.value=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();
}

</script>

ENDNEWSCRIPT
  }
# -------------------------------------------------------------------- Body tag
  $r->print('</head>'.
            &Apache::loncommon::bodytag('Course Documents','',$events,
					'','',$showdoc).
	    &Apache::loncommon::help_open_menu('','','','',273,'RAT'));
  my %allfiles = ();
  my %codebase = ();
  my ($upload_result,$upload_output);
  if ($allowed) {
      if (($env{'form.uploaddoc.filename'}) &&                                               ($env{'form.cmd'}=~/^upload_(\w+)/)) {
# Process file upload - phase one - upload and parse primary file.  
          $upload_result = &process_file_upload(\$upload_output,$coursenum,$coursedom,\%allfiles,\%codebase);
          if ($upload_result eq 'phasetwo') {
              $r->print($upload_output);
          }
      } elsif ($env{'form.phasetwo'}) {
          my %newname = ();
          my %origname = ();
          my %attribs = ();
          my $updateflag = 0;
          my $residx = $env{'form.newidx'};
          my $primary_url = &Apache::lonnet::unescape($env{'form.primaryurl'});
# Process file upload - phase two - gather secondary files.
          for (my $i=0; $i<$env{'form.phasetwo'}; $i++) {
              if ($env{'form.embedded_item_'.$i.'.filename'}) {
                  my $javacodebase;
                  $newname{$i} = &process_secondary_uploads(\$upload_output,$coursedom,$coursenum,'embedded_item_',$i,$residx);
                  $origname{$i} = &Apache::lonnet::unescape($env{'form.embedded_orig_'.$i});
                  if (exists($env{'form.embedded_codebase_'.$i})) {
                      $javacodebase =  &Apache::lonnet::unescape($env{'form.embedded_codebase_'.$i});  
                      $origname{$i} =~ s#^\Q$javacodebase\E/##; 
                  }
                  my @attributes = ();
                  if ($env{'form.embedded_attrib_'.$i} =~ /:/) {
                      @attributes = split/:/,$env{'form.embedded_attrib_'.$i};
                  } else {
                      @attributes = ($env{'form.embedded_attrib_'.$i});
                  }
                  foreach (@attributes) {
                      push(@{$attribs{$i}},&Apache::lonnet::unescape($_));
                  }
                  if ($javacodebase) {
                      $codebase{$i} = $javacodebase;
                      $codebase{$i} =~ s#/$##;
                      $updateflag = 1;
                  }
              }
              unless ($newname{$i} eq $origname{$i}) {
                  $updateflag = 1;
              }
          }
# Process file upload - phase three - modify primary file
          if ($updateflag) {
              my ($content,$rtncode);
              my $updateflag = 0;
              my $getstatus = &Apache::lonnet::getuploaded('GET',$primary_url,$coursedom,$coursenum,\$content,\$rtncode);
              if ($getstatus eq 'ok') {
                  foreach my $item (keys %newname) {
                      if ($newname{$item} ne $origname{$item}) {
                          my $attrib_regexp = '';
                          if (@{$attribs{$item}} > 1) {
                              $attrib_regexp = join('|',@{$attribs{$item}});
                          } else {
                              $attrib_regexp = $attribs{$item}[0];
                          }
                          if ($content =~ m#($attrib_regexp\s*=\s*['"]?)\Q$origname{$item}\E(['"]?)#) {
                          } 
                          $content =~ s#($attrib_regexp\s*=\s*['"]?)\Q$origname{$item}\E(['"]?)#$1$newname{$item}$2#gi; 
                      }
                      if (exists($codebase{$item})) {
                          $content =~ s/(codebase\s*=\s*["']?)\Q$codebase{$item}\E(["']?)/$1.$2/i;
                      }
                  }
# Save edited file.
                  my $saveresult;
                  my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
                  my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
                  my $docuhome=$env{'course.'.$env{'request.course.id'}.'.home'};
                  my $url = &Apache::lonnet::store_edited_file($primary_url,$content,$docudom,$docuname,$docuhome,\$saveresult);
              } else {
                  &Apache::lonnet::logthis('retrieval of uploaded file - '.$primary_url.' - for editing, failed: '.$getstatus); 
              }
          }
      }
  }

  unless ($showdoc ||  $upload_result eq 'phasetwo') {
# -----------------------------------------------------------------------------
       my %lt=&Apache::lonlocal::texthash(
                'uplm' => 'Upload a new main course document',
                'upls' => 'Upload a new supplemental course document',
                'impp' => 'Import a document',
                'pubd' => 'Published documents',
		'copm' => 'All documents out of a published map into this folder',
                'spec' => 'Special documents',
                'upld' => 'Upload Document',
                'srch' => 'Search',
                'impo' => 'Import',
                'selm' => 'Select Map',
                'load' => 'Load Map',
                'reco' => 'Recover Deleted Resources',
                'newf' => 'New Folder',
                'newp' => 'New Composite Page',
                'extr' => 'External Resource',
                'syll' => 'Syllabus',
                'navc' => 'Navigate Contents',
                'sipa' => 'Simple Page',
                'sipr' => 'Simple Problem',
                'scuf' => 'Score Upload Form',
                'bull' => 'Bulletin Board',
                'mypi' => 'My Personal Info',
		'abou' => 'About User',
                'imsf' => 'Import IMS package',
                'file' =>  'File',
                'title' => 'Title',
                'comment' => 'Comment',
                'parse' => 'If HTML file, upload embedded images/multimedia files'
					  );
# -----------------------------------------------------------------------------
    if ($allowed) {
       my $dumpbut=&dumpbutton();
       my $exportbut=&exportbutton();
       my %lt=&Apache::lonlocal::texthash(
					 'vc' => 'Verify Content',
					 'cv' => 'Check/Set Resource Versions',
					  );

       my $folderpath=$env{'form.folderpath'};
       if (!$folderpath) {
	   if ($env{'form.folder'} eq '' ||
	       $env{'form.folder'} eq 'supplemental') {
	       $folderpath='default&'.
		   &Apache::lonnet::escape(&mt('Main Course Documents'));
	   }
       }
       unless ($env{'form.pagepath'}) {
           $containertag = '<input type="hidden" name="folderpath" value="" />';
           $uploadtag = '<input type="hidden" name="folderpath" value="'.$folderpath.'" />';
       }

       $r->print(<<ENDCOURSEVERIFY);
<form name="renameform" method="post" action="/adm/coursedocs">
<input type="hidden" name="title" />
<input type="hidden" name="cmd" />
<input type="hidden" name="markcopy" />
$containertag
</form>
<form name="simpleedit" method="post" action="/adm/coursedocs">
<input type=hidden name="importdetail" value="">
$uploadtag
</form>
<form action="/adm/coursedocs" method="post" name="courseverify">
<table bgcolor="#AAAAAA" width="100%" cellspacing="4" cellpadding="4">
<tr><td bgcolor="#DDDDCC">
<input type="submit" name="verify" value="$lt{'vc'}" />$help{'Verify_Content'}
</td><td bgcolor="#DDDDCC">
    <input type="submit" name="versions" value="$lt{'cv'}" />$help{'Check_Resource_Versions'}
$dumpbut
$exportbut
</td></tr></table>
</form>
ENDCOURSEVERIFY
       $r->print(&Apache::loncommon::help_open_topic('Docs_Adding_Course_Doc',
		     &mt('Editing the Table of Contents for your Course')));
    }
# --------------------------------------------------------- Standard documents
    $r->print('<table border=2 cellspacing=4 cellpadding=4>');
    if (($standard) && ($allowed) && (!$forcesupplement)) {
	$r->print('<tr><td bgcolor="#BBBBBB">');
#  '<h2>'.&mt('Main Course Documents').
#  ($allowed?' '.$help{'Main_Course_Documents'}:'').'</h2>');
       my $folder=$env{'form.folder'};
       if ($folder eq '' || $folder eq 'supplemental') {
           $folder='default';
	   $env{'form.folderpath'}='default&'.&Apache::lonnet::escape(&mt('Main Course Documents'));
       }
       my $postexec='';
       if ($folder eq 'default') {
	   $r->print('<script>this.window.name="loncapaclient";</script>');
       } else {
           #$postexec='self.close();';
       }
       $hadchanges=0;
       &editor($r,$coursenum,$coursedom,$folder,$allowed,$upload_output);
       if ($hadchanges) {
	   &mark_hash_old()
       }
       &changewarning($r,$postexec);
       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;
       $r->print(<<ENDFORM);
<table cellspacing=4 cellpadding=4><tr>
<th bgcolor="#DDDDDD">$lt{'uplm'}</th>
<th bgcolor="#DDDDDD">$lt{'impp'}</th>
<th bgcolor="#DDDDDD">$lt{'spec'}</th>
</tr>
<tr><td bgcolor="#DDDDDD">
$lt{'file'}:<br />
<form name="uploaddocument" action="/adm/coursedocs" method="post" enctype="multipart/form-data">
<input type="file" name="uploaddoc" size="40">
<br />
$lt{'title'}:<br />
<input type="text" size="50" name="comment">
$uploadtag
<input type="hidden" name="cmd" value="upload_default">
<br />
<nobr>
$lt{'parse'}?
<input type="checkbox" name="parserflag" />
</nobr>
<br />
<br />
<nobr>
<input type="submit" value="$lt{'upld'}">
 $help{'Uploading_From_Harddrive'}
</nobr>
</form>
</td>
<td bgcolor="#DDDDDD">
<form action="/adm/coursedocs" method="post" name="simpleeditdefault">
$lt{'pubd'}<br />
$uploadtag
<input type=button onClick="javascript:groupsearch()" value="$lt{'srch'}">
<nobr>
<input type=button onClick="javascript:groupimport();" value="$lt{'impo'}">
$help{'Importing_LON-CAPA_Resource'}
</nobr>
<p>
<hr />
$lt{'copm'}<br />
<input type="text" size="40" name="importmap"><br />
<nobr><input type=button 
onClick="javascript:openbrowser('simpleeditdefault','importmap','sequence,page','')"
value="$lt{'selm'}"> <input type="submit" name="loadmap" value="$lt{'load'}">
$help{'Load_Map'}</nobr>
</p>
</form>
<hr />
<form action="/adm/groupsort" method="post" name="recover">
<input type="button" name="recovermap" onClick="javascript:groupopen('$readfile',1)" value="$lt{'reco'}" />
</form>
ENDFORM
       unless ($env{'form.pagepath'}) {
	   $r->print(<<ENDFORM);
<hr />
<form action="/adm/coursedocs" method="post" name="newext">
$uploadtag
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newext" type="button" onClick="javascript:makenewext('newext');"
value="$lt{'extr'}" /> $help{'Adding_External_Resource'}
</nobr>
</form>
<form action="/adm/imsimportdocs" method="post" name="ims">
<input type="hidden" name="folder" value="$folder" />
<input name="imsimport" type="button" value="$lt{'imsf'}" onClick="javascript:makeims();" />
</nobr>
</form>
ENDFORM
       }
       $r->print('</td><td bgcolor="#DDDDDD">');
       unless ($env{'form.pagepath'}) {
           $r->print(<<ENDFORM);
<form action="/adm/coursedocs" method="post" name="newfolder">
<input type="hidden" name="folderpath" value="$env{'form.folderpath'}" />
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newfolder" type="button"
onClick="javascript:makenewfolder(this.form,'$folderseq');"
value="$lt{'newf'}" />$help{'Adding_Folders'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newpage">
<input type="hidden" name="folderpath" value="$env{'form.folderpath'}" />
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newpage" type="button"
onClick="javascript:makenewpage(this.form,'$pageseq');"
value="$lt{'newp'}" />$help{'Adding_Pages'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newsyl">
$uploadtag
<input type=hidden name="importdetail" 
value="Syllabus=/public/$coursedom/$coursenum/syllabus">
<nobr>
<input name="newsyl" type="submit" value="$lt{'syll'}" /> 
 $help{'Syllabus'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newnav">
$uploadtag
<input type=hidden name="importdetail" 
value="Navigate Content=/adm/navmaps">
<nobr>
<input name="newnav" type="submit" value="$lt{'navc'}" />
$help{'Navigate_Content'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newsmppg">
$uploadtag
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newsmppg" type="button" value="$lt{'sipa'}"
onClick="javascript:makesmppage();" /> $help{'Simple Page'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newsmpproblem">
$uploadtag
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newsmpproblem" type="button" value="$lt{'sipr'}"
onClick="javascript:makesmpproblem();" />$help{'Simple Problem'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newexamupload">
$uploadtag
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newexamupload" type="button" value="$lt{'scuf'}"
onClick="javascript:makeexamupload();" />
$help{'Score_Upload_Form'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newbul">
$uploadtag
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newbulletin" type="button" value="$lt{'bull'}"
onClick="javascript:makebulboard();" />
$help{'Bulletin Board'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newaboutme">
$uploadtag
<input type=hidden name="importdetail" 
value="$plainname=/adm/$udom/$uname/aboutme">
<nobr>
<input name="newaboutme" type="submit" value="$lt{'mypi'}" />
$help{'My Personal Info'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newaboutsomeone">
$uploadtag
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newaboutsomeone" type="button" value="$lt{'abou'}" 
onClick="javascript:makeabout();" />
</nobr>
</form>
ENDFORM
       }
       if ($env{'form.pagepath'}) {
           $r->print(<<ENDBLOCK);
<form action="/adm/coursedocs" method="post" name="newsmpproblem">
$uploadtag
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newsmpproblem" type="button" value="$lt{'sipr'}"
onClick="javascript:makesmpproblem();" />$help{'Simple Problem'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="newexamupload">
$uploadtag
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newexamupload" type="button" value="$lt{'scuf'}"
onClick="javascript:makeexamupload();" />
$help{'Score_Upload_Form'}
</nobr>
</form>
ENDBLOCK
       }
       $r->print('</td></tr>'."\n".
'</table>');
       $r->print('</td></tr>');
    }
# ----------------------------------------------------- Supplemental documents
    if (!$forcestandard) {
       $r->print('<tr><td bgcolor="#BBBBBB">');
# '<h2>'.&mt('Supplemental Course Documents').
#  ($allowed?' '.$help{'Supplemental'}:'').'</h2>');
       my $folder=$env{'form.folder'};
       unless ($folder=~/^supplemental/) {
	   $folder='supplemental';
       }
       if ($folder =~ /^supplemental$/ &&
	   $env{'form.folderpath'} =~ /^default\&/) {
	   $env{'form.folderpath'}='supplemental&'.
	       &Apache::lonnet::escape(&mt('Supplemental Course Documents'));
       }
       &editor($r,$coursenum,$coursedom,$folder,$allowed);
       if ($allowed) {
       my $folderseq=
                  '/uploaded/'.$coursedom.'/'.$coursenum.'/supplemental_'.time.
                     '.sequence';

          $r->print(<<ENDSUPFORM);
<table cellspacing=4 cellpadding=4><tr>
<th bgcolor="#DDDDDD">$lt{'upls'}</th>
<th bgcolor="#DDDDDD">$lt{'spec'}</th>
</tr>
<tr><td bgcolor="#DDDDDD">
<form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
<input type="file" name="uploaddoc" size="40">
<br />$lt{'comment'}:<br />
<textarea cols=50 rows=4 name='comment'>
</textarea>
<br />
<input type="hidden" name="folderpath" value="$env{'form.folderpath'}" />
<input type="hidden" name="cmd" value="upload_supplemental">
<nobr>
<input type="submit" value="$lt{'upld'}">
 $help{'Uploading_From_Harddrive'}
</nobr>
</form>
</td>
<td bgcolor="#DDDDDD">
<form action="/adm/coursedocs" method="post" name="supnewfolder">
<input type="hidden" name="folderpath" value="$env{'form.folderpath'}" />
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newfolder" type="button"
onClick="javascript:makenewfolder(this.form,'$folderseq');"
value="$lt{'newf'}" /> $help{'Adding_Folders'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="supnewext">
<input type="hidden" name="folderpath" value="$env{'form.folderpath'}" />
<input type=hidden name="importdetail" value="">
<nobr>
<input name="newext" type="button" 
onClick="javascript:makenewext('supnewext');"
value="$lt{'extr'}" /> $help{'Adding_External_Resource'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="supnewsyl">
<input type="hidden" name="folderpath" value="$env{'form.folderpath'}" />
<input type=hidden name="importdetail" 
value="Syllabus=/public/$coursedom/$coursenum/syllabus">
<nobr>
<input name="newsyl" type="submit" value="$lt{'syll'}" />
$help{'Syllabus'}
</nobr>
</form>
<form action="/adm/coursedocs" method="post" name="subnewaboutme">
<input type="hidden" name="folderpath" value="$env{'form.folderpath'}" />
<input type=hidden name="importdetail" 
value="$plainname=/adm/$udom/$uname/aboutme">
<nobr>
<input name="newaboutme" type="submit" value="$lt{'mypi'}" />
$help{'My Personal Info'}
</nobr>
</form>
</td></tr>
</table></td></tr>
ENDSUPFORM
       }
    }
    if ($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" /></form>');
    }
    $r->print('</table>');
  } else {
      unless ($upload_result eq 'phasetwo') {
# -------------------------------------------------------- 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><p><table>".
          &entryline(0,&mt("Click to download or use your browser's Save Link function"),$showdoc).'</table></p>');
      }
  }
 }
 $r->print('</body></html>');
 return OK;
} 

1;
__END__

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