# The LearningOnline Network
# Bulletin Board Handler
#
# $Id: lonbulletin.pm,v 1.29 2005/04/07 06:56:22 albertel 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::lonbulletin;
use strict;
use Apache::Constants qw(:common);
use Apache::loncommon;
use Apache::lonnet;
use Apache::lontexconvert;
use Apache::lonfeedback;
use Apache::lonlocal;
sub handler {
my $r = shift;
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK if $r->header_only;
my $target=$env{'form.grade_target'};
# ------------------------------------------------------------ Print the screen
if ($target ne 'tex') {
my $html=&Apache::lonxml::xmlbegin();
$r->print(<<ENDDOCUMENT);
$html
<head>
<title>The LearningOnline Network with CAPA</title>
ENDDOCUMENT
} else {
$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
}
my (undef,undef,undef,undef,$marker)=split(/\//,$r->uri);
# Is this even in a course?
unless ($env{'request.course.id'}) {
$r->print('</head><body>Not in a course</body></html>');
return OK;
}
$marker=~s/\D//g;
unless ($marker) {
$r->print('<body>Invalid call</body>');
return OK;
}
my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
# --------------------------------------------------------- The syllabus fields
my %syllabusfields=&Apache::lonlocal::texthash(
'aaa_title' => 'Topic',
'bbb_content' => 'Task',
'ccc_webreferences' => 'Web References');
# ------------------------------------------------------------ Get Query String
&Apache::loncommon::get_unprocessed_cgi
($ENV{'QUERY_STRING'},['forcestudent','forceedit','register','origpage']);
# ----------------------------------------------------- Force menu registration
my $addentries='';
if ($env{'form.register'}) {
$addentries=' onLoad="'.&Apache::lonmenu::loadevents();
if ($env{'form.origpage'}) {
$addentries .= "document.location='#newpost';";
}
$addentries .= '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
$r->print(&Apache::lonmenu::registerurl(1));
} elsif ($env{'form.origpage'}) {
$addentries = "onLoad=\"document.location='#newpost';\"";
}
# --------------------------------------------------------------- Force Student
my $forcestudent='';
if ($env{'form.forcestudent'}) { $forcestudent='student'; }
my $forceedit='';
if ($env{'form.forceedit'}) { $forceedit='edit'; }
my %syllabus=&Apache::lonnet::dump('bulletinpage_'.$marker,$dom,$crs);
# --------------------------------------- There is such a user, get environment
if ($target ne 'tex') {
$r->print('</head>'.&Apache::loncommon::bodytag
("Bulletin Board/Discussion",$forcestudent,$addentries,'',$dom,
$env{'form.register'}));
}
my $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
my $privileged=$allowed;
if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
$forcestudent='student';
}
if ($target ne 'tex') { $r->print('<table><tr><td>'); }
if ($forcestudent or $target eq 'tex') { $allowed=0; }
if ($allowed) {
$r->print(
'<p>'.
&Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'<br /><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Student View').'</font></a>'.
&Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
} elsif ($privileged and $target ne 'tex') {
$r->print('<a href="'.$r->uri.'?forceedit=edit"><font size="+1">'
.&mt('Edit').'</font></a>');
}
if (($env{'form.uploaddoc.filename'}) &&
($env{'form.storeupl'}) && ($allowed)) {
if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
if ($syllabus{'uploaded.photourl'}) {
&Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
}
$syllabus{'uploaded.photourl'}=
&Apache::lonnet::userfileupload('uploaddoc',1,'bulletin');
}
$syllabus{'uploaded.lastmodified'}=time;
&Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
}
if (($allowed) && ($env{'form.storesyl'})) {
foreach (keys %syllabusfields) {
my $field=$env{'form.'.$_};
$field=~s/\s+$//s;
$field=&Apache::lonfeedback::clear_out_html($field,1);
$syllabus{$_}=$field;
}
$syllabus{'uploaded.lastmodified'}=time;
&Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
}
# ---------------------------------------------------------------- Get syllabus
if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
if ($syllabus{'uploaded.photourl'}) {
&Apache::lonnet::allowuploaded('/adm/syllabus',
$syllabus{'uploaded.photourl'});
$r->print('<img src="'.$syllabus{'uploaded.photourl'}.
'" align="right" />');
}
if ($allowed) {
$r->print(
'<form method="post" enctype="multipart/form-data">'.
'<input type="hidden" name="forceedit" value="edit" />'.
'<h3>'.&mt('Upload a Photo').'</h3>'.
'<input type="file" name="uploaddoc" size="50">'.
'<input type="submit" name="storeupl" value="'.&mt('Upload').'">'.
'</form><form method="post">');
}
foreach (sort keys %syllabusfields) {
if (($syllabus{$_}) || ($allowed)) {
my $message=$syllabus{$_};
$message=~s/\n/\<br \/\>/g;
$message
=~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
$message=&Apache::lontexconvert::msgtexconverted($message);
if ($allowed) {
$message=&Apache::lonspeller::markeduptext($message);
}
unless ($_ eq 'aaa_title') {
if (($_ ne 'bbb_content') || ($allowed)) {
if ($target ne 'tex') {
$r->print('<h3>'.$syllabusfields{$_}.'</h3>');
} else {
$r->print('\\\\\textbf{'.$syllabusfields{$_}.'}\\\\');
}
}
if ($target ne 'tex') {
$r->print('<blockquote>'.
$message.'</blockquote>');
} else {
$r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$message).' ');
}
if ($allowed) {
$r->print('<br /><textarea cols="80" rows="10" name="'.$_.'">'.
$syllabus{$_}.
'</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
}
} else {
if ($target ne 'tex') {
$r->print('<h1>'.$message.'</h1>');
} else {
$r->print('\\\\\textbf{'.&Apache::lonxml::xmlparse($r,'tex',$message).'}\\\\');
}
if ($allowed) {
$r->print(
'<br />'.&mt('Topic').'<br /><textarea cols="80" rows="2" name="'.$_.'">'.
$syllabus{$_}.
'</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
}
}
}
}
if ($allowed) {
$r->print('</form>');
}
if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
} else {
$r->print('<p>'.&mt('No page information provided.').'</p>');
}
if ($target ne 'tex') { $r->print('</td></tr></table>'); }
if ($target ne 'tex') {
$r->print(&Apache::lonfeedback::list_discussion
('board','OPEN','bulletin___'.$marker.'___'.
$r->uri));
} else {
$r->print('\\\\'.&Apache::lonxml::xmlparse($r,'tex',&Apache::lonfeedback::list_discussion
('board','OPEN','bulletin___'.$marker.'___'.
$r->uri)));
}
if ($target ne 'tex') {$r->print('</body></html>');} else {$r->print('\end{document}');}
return OK;
}
1;
__END__
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