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File:  [LON-CAPA] / loncom / interface / londocs.pm
Revision 1.4: download - view: text, annotated - select for diffs
Wed Jul 31 14:56:36 2002 UTC (21 years, 9 months ago) by www
Branches: MAIN
CVS tags: HEAD
Raw functionality there, no LaTeX, no token-security, no remove

# The LearningOnline Network
# Documents
#
# $Id: londocs.pm,v 1.4 2002/07/31 14:56:36 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;

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

# does this user have privileges to post, etc?
    my $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});

    if ($allowed) { 
       &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                                         ['remove']) 
    }

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


# upload a file
    if (($ENV{'form.uploaddoc.filename'}) && ($allowed)) {
        my $id=time.'_'.$ENV{'user.name'}.'_'.$ENV{'user.domain'};
	my $url=&Apache::lonnet::userfileupload('uploaddoc');
        if ($url=~/^error\:/) {
        } else {
	    my $comment=$ENV{'form.comment'};
           $comment=~s/\</\&lt\;/g;
           $comment=~s/\>/\&gt\;/g;
           &Apache::lonnet::put('coursedocs',
				{ $id.'.url' => $url,
                                  $id.'.comment' => $comment },
                                $coursedom,$coursenum);
        }        
    }

# delete a file
    if ($ENV{'form.remove'}=~/$ENV{'user.name'}\_$ENV{'user.domain'}$/) {
       my $id=$ENV{'form.remove'};
       &Apache::lonnet::del('coursedocs',
			    [$id.'.url',$id.'.comment'],
                            $coursedom,$coursenum);
   }

# print screen
    $r->print(<<ENDDOCUMENT);
<html>
<head>
<title>The LearningOnline Network with CAPA</title>
</head>
<body bgcolor="#FFFFFF">
<h1>Course Documents</h1>
ENDDOCUMENT
# ------------------------------------------------------- Print headers to docs
   my %currentdocs=&Apache::lonnet::dump('coursedocs',$coursedom,$coursenum);
   foreach (sort keys (%currentdocs)) {
       if ($_=~/(\d+)\_(\w+)\_(\w+)\.url/) {
	   $r->print('<hr>'.localtime($1).' '.$2.' '.$3.'<blockquote>'.
		     $currentdocs{$1.'_'.$2.'_'.$3.'.comment'}.
                     '</blockquote><a href="'.$currentdocs{$_}.'">View</a>');
       }
   }
# ----------------------------------------------------------------- Upload form
   if ($allowed) {
       $r->print(<<ENDFORM);
<hr />
<h3>Post a new course document</h3>
<form 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="submit" value="Upload Document">
</form>
ENDFORM
    }
    $r->print('</body></html>');
    return OK;
} 

1;
__END__
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