# The LearningOnline Network
# Simple Page Editor
#
# $Id: lonsimplepage.pm,v 1.31 2005/11/22 00:01:41 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::lonsimplepage;
use strict;
use Apache::Constants qw(:common);
use Apache::loncommon;
use Apache::lonnet;
use Apache::lontexconvert;
use Apache::lonfeedback;
use Apache::lonlocal;
use Apache::lonprintout;
use Apache::lonxml;
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,$marker,$caller)=split(/\//,$r->uri);
# Is this even in a course?
unless ($env{'request.course.id'}) {
if ($target ne 'tex') {
$r->print('</head><body>Not in a course</body></html>');
return OK;
} else {
$r->print('\textbf{Not in a course}\end{document}');
}
}
my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
my $grp_view_permission = &Apache::lonnet::allowed('vcg',
$env{'request.course.id'});
my $namespace;
my %curr_group = ();
my %groupinfo = ();
if ($caller eq 'grppg') {
$marker =~ s/\W//g;
$namespace = 'grppage_'.$marker;
my %curr_groups;
if (!&Apache::loncommon::coursegroups(\%curr_groups,$dom,$crs,$marker)) {
$r->print('<body>Invalid group name</body>');
return OK;
}
%groupinfo = &Apache::loncommon::get_group_settings($curr_groups{$marker});
} else {
$marker=~s/\D//g;
$namespace = 'smppage_'.$marker;
}
unless ($marker) {
$r->print('<body>Invalid call</body>');
return OK;
}
# --------------------------------------------------------- The syllabus fields
my %syllabusfields=&Apache::lonlocal::texthash(
'aaa_title' => 'Page Title',
'bbb_content' => 'Content',
'ccc_webreferences' => 'Web References');
if ($caller eq 'grppg') {
$syllabusfields{'abb_links'} = &mt('Functionality');
}
# ------------------------------------------------------------ Get query string
&Apache::loncommon::get_unprocessed_cgi
($ENV{'QUERY_STRING'},['forcestudent','forceedit','register']);
# ----------------------------------------------------- Force menu registration
my $addentries='';
if ($env{'form.register'}) {
$addentries=' onLoad="'.&Apache::lonmenu::loadevents().
'" onUnload="'.&Apache::lonmenu::unloadevents().'"';
$r->print(&Apache::lonmenu::registerurl(1));
}
# --------------------------------------------------------------- Force Student
my $forcestudent='';
if ($env{'form.forcestudent'} || $target eq 'tex' ) { $forcestudent='student'; };
my $forceedit='';
if ($env{'form.forceedit'}) { $forceedit='edit'; }
my %syllabus=&Apache::lonnet::dump($namespace,$dom,$crs);
# --------------------------------------- There is such a user, get environment
if ($target ne 'tex') {
my $title = 'Course Page';
if ($caller eq 'grppg') {
$title = 'Group Page';
}
$r->print(&Apache::lonhtmlcommon::htmlareaheaders().
'</head>'.&Apache::loncommon::bodytag
($title,$forcestudent,$addentries,'',$dom,$env{'form.register'}));
}
if ($caller eq 'grppg') {
if (($grp_view_permission) ||
(&Apache::loncommon::check_group_access($caller))) {
unless(&Apache::lonnet::allowed('vgh',
$env{'request.course.id'}.'/'.$marker)) {
&display_group_links($r,$target,$marker,'view',%groupinfo);
return OK;
}
} else {
if ($target ne 'tex') {
$r->print('</head><body>You do not currently have rights to
view this group.
</body></html>');
return OK;
} else {
$r->print('\textbf{You do not currently have rights to view this group}\end{document}');
}
}
}
my $allowed;
if ($caller eq 'grppg') {
$allowed = $grp_view_permission;
unless ($allowed) {
$allowed = &Apache::lonnet::allowed('mgh',$env{'request.course.id'}.
'/'.$marker);
}
} else {
$allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
}
my $privileged=$allowed;
if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
$forcestudent='student';
}
if ($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'} and $target ne 'tex') &&
($env{'form.storeupl'}) && ($allowed)) {
if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
if ($syllabus{'uploaded.photourl'}) {
&Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
}
if ($caller eq 'grppage') {
$syllabus{'uploaded.photourl'}=&Apache::lonnet::userfileupload(
'uploaddoc',1,"grouppage/$marker");
} else {
$syllabus{'uploaded.photourl'}=
&Apache::lonnet::userfileupload('uploaddoc',1,'simplepage');
}
}
$syllabus{'uploaded.lastmodified'}=time;
&Apache::lonnet::put($namespace,\%syllabus,$dom,$crs);
}
if (($allowed) && ($env{'form.storesyl'})) {
foreach (keys %syllabusfields) {
my $field=$env{'form.'.$_};
chomp($field);
$field=~s/\s+$//s;
$field=~s/^\s+//s;
$field=~s/\<br\s*\/*\>$//s;
$field=&Apache::lonfeedback::clear_out_html($field,1);
$syllabus{$_}=$field;
}
$syllabus{'uploaded.lastmodified'}=time;
&Apache::lonnet::put($namespace,\%syllabus,$dom,$crs);
}
# ---------------------------------------------------------------- Get syllabus
if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
if ($syllabus{'uploaded.photourl'}) {
&Apache::lonnet::allowuploaded('/adm/'.$caller,
$syllabus{'uploaded.photourl'});
my $image='<img src="'.$syllabus{'uploaded.photourl'}.'"
align="right" />';
if ($target eq 'tex') {
$image=&Apache::lonxml::xmlparse($r,'tex',$image);
}
$r->print($image);
}
if ($allowed) {
$r->print(
'<form method="post" enctype="multipart/form-data">'.
'<input type="hidden" name="forceedit" value="edit" />'.
'<h3>Upload a Photo</h3>'.
'<input type="file" name="uploaddoc" size="50">'.
'<input type="submit" name="storeupl" value="Upload">'.
'</form><form method="post">');
}
foreach (sort keys %syllabusfields) {
if (($syllabus{$_}) || ($allowed)) {
my $message=$syllabus{$_};
&Apache::lonfeedback::newline_to_br(\$message);
$message
=~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
if ($allowed) {
$message=&Apache::lonspeller::markeduptext($message);
}
$message=&Apache::lontexconvert::msgtexconverted($message);
if ($_ eq 'abb_links' && $caller eq 'grppg') {
$r->print('<br /><input type="hidden" name="'.$_.
'" value="'.$syllabus{$_}.'" />');
&display_group_links($r,$target,$marker,'edit',%groupinfo);
$r->print('<br />');
} elsif ($_ eq 'aaa_title') {
if ($target ne 'tex') {
$r->print('<h1>'.$message.'</h1>');
} else {
my $safeinit;
$r->print(&Apache::lonxml::xmlparse($r,'tex','<h1>'.$message.'</h1>'));
}
if ($allowed) {
if ($env{'form.grade_target'} ne 'tex') {
$r->print(
'<br />Title<br /><textarea cols="80" rows="2" name="'.$_.'">'.
$syllabus{$_}.
'</textarea><input type="submit" name="storesyl" value="Store" />');
} else {
my $safeinit;
$r->print(&Apache::lonxml::xmlparse($r,'tex',$syllabus{$_},$safeinit));
}
}
} else {
if (($_ ne 'bbb_content') || ($allowed)) {
if ($target ne 'tex') {
$r->print('<h3>'.$syllabusfields{$_}.'</h3>');
} else {
my $safeinit;
$r->print(&Apache::lonxml::xmlparse($r,'tex','<h3>'.$syllabusfields{$_}.'</h3>'));
}
}
if ($target ne 'tex') {
$r->print('<blockquote>'.
$message.'</blockquote>');
} else {
my $safeinit;
$r->print(&Apache::lonxml::xmlparse($r,'tex',$message));
}
if ($allowed) {
if ($target ne 'tex') {
$r->print('<br /><textarea cols="80" rows="24" name="'.$_.'" id="'.$_.'">'.
$syllabus{$_}.
'</textarea><input type="submit" name="storesyl" value="Store" />');
} else {
my $safeinit;
$r->print(&Apache::lonxml::xmlparse($r,'tex',$syllabus{$_},$safeinit));
}
}
}
}
}
if ($allowed && ($env{'form.grade_target'} ne 'tex')) {
$r->print(&Apache::lonhtmlcommon::htmlareaselectactive
('bbb_content').'</form>');
}
if ($env{'form.grade_target'} ne 'tex') {$r->print('</p>');}
} else {
$r->print('<p>No page information provided.</p>');
}
if ($env{'form.grade_target'} ne 'tex') {
$r->print('</body></html>');
} else {
$r->print('\end{document}');
}
return OK;
}
sub display_group_links {
my ($r,$target,$marker,$context,%groupinfo) = @_;
my @available = ();
my %menu = ();
%{$menu{'email'}} = (
text => 'Group e-mail',
href => '/adm/email?group='.$marker,
);
%{$menu{'discussion'}} = (
text => 'Discussion Boards',
href => '/adm/groupboards?group='.$marker,
);
%{$menu{'chat'}} = (
text => 'Group chat',
href => "javascript:group_chat('$marker')",
);
%{$menu{'files'}} = (
text => 'File repository',
href => '/adm/portfolio?group='.$marker,
);
%{$menu{'roster'}} = (
text => 'Membership roster',
href => '/adm/grouproster?group='.$marker,
);
foreach my $tool (sort(keys(%menu))) {
if ($groupinfo{functions}{$tool} eq 'on') {
push(@available,$tool);
}
}
if (@available > 0) {
my $output = '<table cellspacing="4" cellpadding="4"><tr>';
foreach my $tool (@available) {
if ($target eq 'tex') {
$output .= '<td>'.$menu{$tool}{text}.'</td>';
} else {
$output .= '<td><a href="'.$menu{$tool}{href}.'">'.
$menu{$tool}{text}.'</a></td>';
}
}
$output .= '</tr></table>';
if ($target eq 'tex') {
$r->print(&Apache::lonxml::xmlparse($r,'tex','Available functions<br /><br />'.$output));
} else {
$r->print('<h3>Functions</h3>'.$output);
}
} else {
my $output;
if ($context eq 'edit') {
$output = 'No group functionality';
} else {
$output = 'No group functionality (e.g., e-mail, discussion, chat or file upload) is currently available to you in this group: '.$marker;
}
if ($target eq 'tex') {
$r->print(&Apache::lonxml::xmlparse($r,'tex',$output));
} else {
$r->print($output);
}
}
}
1;
__END__
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