# The LearningOnline Network # Syllabus # # $Id: lonsyllabus.pm,v 1.73 2008/12/16 20:00:11 ehlerst 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::lonsyllabus; use strict; use Apache::lontemplate; use Apache::Constants qw(:common); use Apache::loncommon; use Apache::lonnet; use Apache::lontexconvert; use Apache::lonfeedback; use Apache::lonannounce; use Apache::lonlocal; use Apache::lonhtmlcommon; use Apache::lonspeller(); use HTML::Entities(); 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'}; # --------------------------------------------------- Get course info from URL my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri); # ------------------------------------------------------------ Get query string &Apache::loncommon::get_unprocessed_cgi ($ENV{'QUERY_STRING'},['forcestudent','register','forceedit','wrapperdisplay']); # ----------------------------------------------------- Is this even a course? my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom); if ($homeserver eq 'no_host') { &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; &Apache::loncommon::simple_error_page($r,'No syllabus available', 'No syllabus available'); return OK; } # ------------------------------------- There is such a course, get environment my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum); # ------------------------------------------------------------ Print the screen if ($target eq 'tex') { $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'})); } # -------------------------------------------------- Let's see who handles this my $externalsyllabus=$courseenv{'externalsyllabus'}; if ($externalsyllabus=~/\w/) { if ($env{'form.wrapperdisplay'} eq 'menu') { $r->print(&Apache::lonwrapper::simple_menu()); } else { $r->print(&Apache::lonwrapper::wrapper("/public/$cdom/$cnum/syllabus?wrapperdisplay=menu", $externalsyllabus)); } return OK; } # ------------------------------ The buck stops here: internal syllabus display # --------------------------------------------------------- The syllabus fields my %syllabusfields=&Apache::lonlocal::texthash( 'aaa_instructorinfo' => 'Instructor Information', 'bbb_description' => 'Course Description', 'ccc_prereq' => 'Prerequisites', 'cdc_classhours' => 'Class Hours', 'ddd_officehours' => 'Office Hours', 'eee_helproom' => 'Helproom Hours', 'efe_projectinfo' => 'Project Information', 'fff_examinfo' => 'Exam Information', 'fgf_deadlines' => 'Deadlines', 'ggg_grading' => 'Grading Information', 'hhh_readings' => 'Readings', 'iii_coursepack' => 'Coursepack', 'jjj_weblinks' => 'Web Links', 'kkk_textbook' => 'Textbook', 'lll_includeurl' => 'URLs To Include in Syllabus'); # --------------------------------------------------------------- Force Student my $forcestudent=''; if ($env{'form.forcestudent'}) { $forcestudent='student'; }; my $forceedit=''; if ($env{'form.forceedit'}) { $forceedit='edit'; } # ----------------------------------------------------------------- Make header if ($target ne 'tex') { my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom); my $js; if ($env{'form.backto'} eq 'coursecatalog') { $js .= <<"ENDSCRIPT"; ENDSCRIPT } my $start_page = &Apache::loncommon::start_page("Syllabus", $rss_link.$js, {'function' => $forcestudent, 'domain' => $cdom, 'force_register' => $env{'form.register'},}); $r->print($start_page); if ($env{'form.backto'} eq 'coursecatalog') { &Apache::lonhtmlcommon::clear_breadcrumbs(); &Apache::lonhtmlcommon::add_breadcrumb ({href=>"javascript:ToCatalog()", text=>"Course Catalog"}); if ($env{'form.coursenum'} ne '') { &Apache::lonhtmlcommon::add_breadcrumb ({href=>"javascript:ToCatalog('details')", text=>"Course details"}); } &Apache::lonhtmlcommon::add_breadcrumb ({href=>$r->uri, text=>"Course syllabus"}); $r->print(&Apache::lonhtmlcommon::breadcrumbs()); } $r->print('
'. &mt('Show Public View').''. &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView'). '
'. &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).'
'.&mt('This syllabus can be publicly viewed at') .' http://'. &Apache::lonnet::hostname($homeserver).$r->uri.''. &Apache::loncommon::help_open_topic('Syllabus_ExtLink').'
'. ''.&mt('You can specify an external URL as Syllabus in the [_1].',''.&mt('Course Parameters').'').'
'); } elsif ($privileged) { if ($target ne 'tex') { $r->print(''.
&mt('Edit').'');
}
}
if (($allowed) && ($env{'form.storesyl'})) {
foreach my $syl_field (keys(%syllabusfields)) {
my $field=$env{'form.'.$syl_field};
chomp($field);
$field=~s/\s+$//s;
$field=~s/^\s+//s;
$field=~s/\
$//s;
$field=&Apache::lonfeedback::clear_out_html($field,1);
$syllabus{$syl_field}=$field;
if ($syl_field eq 'lll_includeurl') { # clean up included URLs
my $field='';
foreach my $value (split(/\n/,$syllabus{$syl_field})) {
my $url=$value;
# get rid of leading and trailing spaces
$url=~s/^\s+//;
$url=~s/\s+$//;
if ($url=~m|^http://([^/]+)/(.+)$|) {
my $host = $1;
my $remainder=$2;
# remove the hostname from internal URLs
my $hostname = &Apache::lonnet::hostname($host);
my %all_hostnames = &Apache::lonnet::all_hostnames();
foreach my $possible_host (keys(%all_hostnames)) {
if ($possible_host =~ /\Q$hostname\E/i) {
$url=$remainder;
}
}
}
# norm internal URLs
unless ($url=~/^http\:/) {
$url=&Apache::lonnet::clutter($url);
}
# re-assemble field
if ($url) {
$field.=$url."\n";
}
}
$syllabus{$syl_field}=$field;
}
}
$syllabus{'uploaded.domain'}=$env{'user.domain'};
$syllabus{'uploaded.name'}=$env{'user.name'};
$syllabus{'uploaded.lastmodified'}=time;
&Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
}
}
# ---------------------------------------------------------------- Get syllabus
if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
my $lastmod=$syllabus{'uploaded.lastmodified'};
$lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
my $who = &Apache::loncommon::aboutmewrapper(
&Apache::loncommon::plainname($syllabus{'uploaded.name'},
$syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
$syllabus{'uploaded.domain'});
if ($target ne 'tex') {
$r->print('
'.&mt('Last updated').': | '. $lastmod.' | '. ($who ? &mt('by').' '.$who : '' ). ' |
'); } else { $r->print('\\\\ '.&mt('Last updated').': '.$lastmod.' '. ($who? &mt('by').'\\\\ '. &Apache::loncommon::plainname($syllabus{'uploaded.name'},$syllabus{'uploaded.domain'}) :'') .'\\\\'); } if ($allowed) { $r->print('
'. &Apache::lonhtmlcommon::htmlareaselectactive(@htmlids)); } if ($target ne 'tex') {$r->print('');} else {$r->print('\\\\');} } else { if ($target ne 'tex') {$r->print('');} else {$r->print('\par ');} $r->print(&mt('No syllabus information provided.')); if ($target ne 'tex') {$r->print('
');} } if ($target ne 'tex') { if ($env{'form.backto'} eq 'coursecatalog') { $r->print(''); } $r->print(&Apache::loncommon::end_page()); } else { $r->print('\end{document}'); } return OK; } 1; __END__The server encountered an internal error or misconfiguration and was unable to complete your request.
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