# The LearningOnline Network
# Documents
#
# $Id: londocs.pm,v 1.13 2002/08/28 14:11:27 www 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);
use Apache::lonnet;
use Apache::loncommon;
use Apache::lonratedt;
use Apache::lonratsrv;
my $iconpath;
# Mapread read maps into lonratedt::global arrays
# @order and @resources, determines status
# sets @order - pointer to resources in right order
# sets @resources - array with the resources with correct idx
#
sub mapread {
my ($coursenum,$coursedom,$map)=@_;
return
&Apache::lonratedt::mapread('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
$map);
}
sub storemap {
my ($coursenum,$coursedom,$map)=@_;
return
&Apache::lonratedt::storemap('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
$map);
}
sub editor {
my ($r,$coursenum,$coursedom,$folder,$allowed)=@_;
my $errtext='';
my $fatal=0;
($errtext,$fatal)=
&mapread($coursenum,$coursedom,$folder.'.sequence');
if ($fatal) {
$r->print('<p><font color="red">'.$errtext.'</font></p>');
} else {
# ------------------------------------------------------------ Process commands
if ($allowed) {
# upload a file, if present
if (($ENV{'form.uploaddoc.filename'}) &&
($ENV{'form.cmd'}=~/^upload_(\w+)/)) {
if ($folder=~/^$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 $url=&Apache::lonnet::userfileupload('uploaddoc',1);
my $ext='false';
if ($url=~/^http\:\/\//) { $ext='true'; }
$url=~s/\:/\:/g;
my $comment=$ENV{'form.comment'};
$comment=~s/\</\<\;/g;
$comment=~s/\>/\>\;/g;
$comment=~s/\:/\:/g;
my $newidx=$#Apache::lonratedt::resources+1;
$Apache::lonratedt::resources[$newidx]=
$comment.':'.$url.':'.$ext.':normal:res';
$Apache::lonratedt::order[$#Apache::lonratedt::order+1]=
$newidx;
&storemap($coursenum,$coursedom,$folder.'.sequence');
}
}
if ($ENV{'form.cmd'}) {
my ($cmd,$idx)=split(/\_/,$ENV{'form.cmd'});
if ($cmd eq 'del') {
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') {
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') {
my $i=$Apache::lonratedt::order[$idx+1];
$Apache::lonratedt::order[$idx+1]=
$Apache::lonratedt::order[$idx];
$Apache::lonratedt::order[$idx]=$i;
}
# Store the changed version
&storemap($coursenum,$coursedom,$folder.'.sequence');
}
# Group import/search
if ($ENV{'form.importdetail'}) {
foreach (split(/\&/,$ENV{'form.importdetail'})) {
if (defined($_)) {
my ($name,$url)=split(/\=/,$_);
$name=&Apache::lonnet::unescape($name);
$url=&Apache::lonnet::unescape($url);
if ($url) {
my $idx=$#Apache::lonratedt::resources+1;
$Apache::lonratedt::order
[$#Apache::lonratedt::order+1]=$idx;
my $ext='false';
if ($url=~/^http\:\/\//) { $ext='true'; }
$url=~s/\:/\:/g;
$Apache::lonratedt::resources[$idx]=
$name.':'.$url.':'.$ext.':normal:res';
}
}
}
# Store the changed version
&storemap($coursenum,$coursedom,$folder.'.sequence');
}
}
# ---------------------------------------------------------------- Print screen
my $idx=0;
$r->print('<table>');
foreach (@Apache::lonratedt::order) {
my ($name,$url)=split(/\:/,$Apache::lonratedt::resources[$_]);
unless ($name) { $name=(split(/\//,$url))[-1]; }
unless ($name) { $name='EMPTY'; }
$r->print(&entryline($idx,$name,$url,$folder,$allowed));
$idx++;
}
$r->print('</table>');
}
}
# --------------------------------------------------------------- An entry line
sub entryline {
my ($index,$title,$url,$folder,$allowed)=@_;
my $line='<tr>';
# Edit commands
if ($allowed) {
$line.=(<<END);
<td><table border='0' cellspacing='0' cellpadding='0'>
<tr><td><a href='/adm/coursedocs?folder=$folder&cmd=up_$index'>
<img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr>
<tr><td><a href='/adm/coursedocs?folder=$folder&cmd=down_$index'>
<img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr>
</table></td><td>
<a href='/adm/coursedocs?folder=$folder&cmd=del_$index'>Remove</td>
END
}
# URL
if ($url=~/^\/*uploaded\//) {
$url=&Apache::lonnet::tokenwrapper($url);
}
$line.='<td><a href="'.$url.'">View</a></td>';
# Title
$title=&Apache::lonnet::unescape($title);
if ($title=~
/^(\d+)\_\_\_\&\&\&\_\_\_(\w+)\_\_\_\&\&\&\_\_\_(\w+)\_\_\_\&\&\&\_\_\_(.*)$/
) { $title='<i>'.localtime($1).'</i> '.$2.' at '.$3.': <br>'.
&Apache::lontexconvert::msgtexconverted($4);
}
$line.="<td>$title</td>";
$line.='</tr>';
return $line;
}
# ================================================================ Main Handler
sub handler {
my $r = shift;
$r->content_type('text/html');
$r->send_http_header;
return OK if $r->header_only;
# is this a standard course?
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['folder']);
my $standard=($ENV{'request.course.uri'}=~/^\/uploaded\//);
my $forcestandard=($ENV{'form.folder'}=~/^default_/);
my $forcesupplement=($ENV{'form.folder'}=~/^supplemental_/);
# does this user have privileges to post, etc?
my $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
my $script='';
if ($allowed) {
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['cmd']);
$script=&Apache::lonratedt::editscript('simple');
}
# get course data
my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
# graphics settings
$iconpath = $r->dir_config('lonIconsURL') . "/";
# print screen
$r->print(<<ENDDOCUMENT);
<html>
<head>
<title>The LearningOnline Network with CAPA</title>
<script>$script</script>
</head>
ENDDOCUMENT
$r->print(&Apache::loncommon::bodytag('Course Documents'));
# --------------------------------------------------0------ Standard documents
if (($standard) && ($allowed) && (!$forcesupplement)) {
$r->print('<h2>Main Course Documents</h2>');
my $folder=$ENV{'form.folder'};
unless ($folder=~/^default/) { $folder='default'; }
&editor($r,$coursenum,$coursedom,$folder,$allowed);
$r->print(<<ENDFORM);
<table><tr>
<th>Upload a new main course document</th>
<th>Import a published document</th>
<th>Special documents</th>
</tr>
<tr><td>
File:<br />
<form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
<input type="file" name="uploaddoc" size="50">
<br />
Title:<br />
<input type="text" size="50" name="comment">
<input type="hidden" name="folder" value="$folder">
<input type="hidden" name="cmd" value="upload_default">
<input type="submit" value="Upload Document">
</form>
</td>
<td>
<form action="/adm/coursedocs" method="post" name="simpleedit">
<input type=hidden name="importdetail" value="">
<input type=button onClick=
"javascript:groupsearch()" value="Group Search">
<input type=button onClick=
"javascript:groupimport();" value="Group Import">
</form>
</td><td>
<form action="/adm/coursedocs" method="post" name="newfolder">
<input type=hidden name="importdetail" value="">
<input name="newfolder" type="button" onClick="javascript:newfolder();"
value="New Folder" />
</form>
<form action="/adm/coursedocs" method="post" name="newext">
<input type=hidden name="importdetail" value="">
<input name="newext" type="button" onClick="javascript:newext();"
value="External Resource" />
</form>
<form action="/adm/coursedocs" method="post" name="newsyl">
<input type=hidden name="importdetail" value="">
<input name="newsyl" type="button" onClick="javascript:newsyl();"
value="Syllabus" />
</form>
<form action="/adm/coursedocs" method="post" name="newaboutme">
<input type=hidden name="importdetail" value="">
<input name="newaboutme" type="button" onClick="javascript:newaboutme();"
value="My Personal Info" />
</form>
</td></tr>
</table>
ENDFORM
$r->print('<hr />');
}
# ----------------------------------------------------- Supplemental documents
if (!$forcestandard) {
$r->print('<h2>Supplemental Course Documents</h2>');
my $folder=$ENV{'form.folder'};
unless ($folder=~/supplemental/) { $folder='supplemental'; }
&editor($r,$coursenum,$coursedom,$folder,$allowed);
if ($allowed) {
$r->print(<<ENDSUPFORM);
<h3>Post a new supplemental course document</h3>
<form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
<input type="file" name="uploaddoc" size="50">
<br />Comment:<br />
<textarea cols=50 rows=4 name='comment'>
</textarea>
<input type="hidden" name="folder" value="$folder">
<input type="hidden" name="cmd" value="upload_supplemental">
<input type="submit" value="Upload Document">
</form>
ENDSUPFORM
}
}
$r->print('</body></html>');
return OK;
}
1;
__END__
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