--- loncom/interface/lonsyllabus.pm 2002/08/28 14:11:27 1.7
+++ loncom/interface/lonsyllabus.pm 2010/02/15 05:31:00 1.106.2.1
@@ -1,7 +1,7 @@
# The LearningOnline Network
# Syllabus
#
-# $Id: lonsyllabus.pm,v 1.7 2002/08/28 14:11:27 www Exp $
+# $Id: lonsyllabus.pm,v 1.106.2.1 2010/02/15 05:31:00 faziophi Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -29,33 +29,71 @@
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();
+use Digest::MD5 qw(md5_hex);
+use Storable qw(freeze thaw);
+
+# These are strings representing types of fields
+# that will used to parse/display a field correctly
+use constant {
+ TYPE_TEXT_HTML => 'html', #<-- default
+ TYPE_TEXT_PLAIN => 'text',
+ TYPE_URL_INCLUDE => 'include-url',
+};
sub handler {
my $r = shift;
- $r->content_type('text/html');
+ &Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK if $r->header_only;
-# ------------------------------------------------------------ Print the screen
- $r->print(< This syllabus can be publically viewed at http://'.
- $Apache::lonnet::hostname{$homeserver}.$r->uri.' '
+ .&mt('This syllabus can be publicly viewed at [_1]'
+ ,''.$protocol.'://'.&Apache::lonnet::hostname($homeserver).$r->uri.'')
+ .' '.&Apache::loncommon::help_open_topic('Syllabus_ExtLink')
+ .' '
+ .&mt('Instead of using this template you can specify an external URL as Syllabus in the [_1]Course Configuration[_2].'
+ ,'','')
+ .' ');
- if ($allowed) {
- $r->print(''.$courseenv{'description'}.'
'.
- $Apache::lonnet::domaindescription{$cdom}.'
');
- my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
- my $allowed=0;
+ if ($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' => undef,
+ 'domain' => $cdom,
+ 'force_register' =>
+ $env{'form.register'},});
+
+ $r->print($start_page);
+ if ($env{'form.backto'} eq 'coursecatalog') {
+ &Apache::lonhtmlcommon::clear_breadcrumbs();
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({href=>"javascript:ToCatalog()",
+ text=>"Course/Community Catalog"});
+ if ($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"});
+ $r->print(&Apache::lonhtmlcommon::breadcrumbs());
+ }
+ }
+# ---------------------------------------------------------- Load syllabus info
+ my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum); # load db
+ my $allowed=0; # can we edit this page?
+ my $privileged=0;
+ my %data;
+ if ($env{'form.forceflush'}) {
+ delete $syllabus{'data.fields'};
+ &Apache::lonnet::del('syllabus', ['data.fields'], $cdom, $cnum);
+ delete $syllabus{'properties.v2_conflict'};
+ &Apache::lonnet::del('syllabus', ['properties.v2_conflict'], $cdom, $cnum);
+ delete $syllabus{'properties.v2_conflict_fail'};
+ &Apache::lonnet::del('syllabus', ['properties.v2_conflict_fail'], $cdom, $cnum);
+ delete $syllabus{'properties.last_modified'};
+ &Apache::lonnet::del('syllabus', ['properties.last_modified'], $cdom, $cnum);
+ delete $syllabus{'properties.v2_converted'};
+ &Apache::lonnet::del('syllabus', ['properties.v2_converted'], $cdom, $cnum);
+ delete $syllabus{'data.old_new_map'};
+ &Apache::lonnet::del('syllabus', ['data.old_new_map'], $cdom, $cnum);
+ %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum); # load db
+ $r->print("Flushed syllabus DB file.
");
+ $r->print("Syllabus conflict: ".$syllabus{'properties.v2_conflict'}."
");
+ }
+ $r->print("Existing fields: ".$syllabus{'data.fields'}."
");
+ $r->print("Old-new map: ".$syllabus{'data.old_new_map'}."
");
+ if (!exists($syllabus{'data.fields'})) {
+ # convert existing 2.x data to new DB fields
+ # which become new primary data source for document
+ %data = %{convert_from_v2($r, \%syllabus, \%syllabusfields, 0)};
+ $r->print("New fields order: ".$data{'data.fields'}."
");
+ &Apache::lonnet::put('syllabus',\%data,$cdom,$cnum);
+ } elsif ( !exists($syllabus{'properties.v2_converted'}) &&
+ exists($syllabus{'uploaded.lastmodified'}) &&
+ exists($syllabus{'properties.last_modified'}) &&
+ ($syllabus{'uploaded.lastmodified'} !=
+ $syllabus{'properties.last_modified'})) {
+ # if the document has been saved in 3.x and later edited in
+ # 2.x, reconvert the existing document, with extra warning
+ %data = %{convert_from_v2($r, \%syllabus, \%syllabusfields, 1)};
+ delete $data{'properties.v2_converted'};
+ &Apache::lonnet::del('syllabus', ['properties.v2_converted'], $cdom, $cnum);
+ $data{'properties.v2_conflict'} = 1;
+ &Apache::lonnet::put('syllabus',\%data,$cdom,$cnum);
+ } else {
+ %data = %syllabus;
+
+ }
-# This handler might be called anonymously ...
# ----------------------------------------------------- Only if not public call
- if ($ENV{'user.environment'}) {
-# does this user have privileges to post, etc?
- if ($ENV{'request.course.id'}) {
- $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
- if ($forcestudent) { $allowed=0; }
- }
- if ($allowed) {
- $r->print('
");
+ }
+ }
+ if (($allowed) && ($env{'form.storesyl'})) {
+ foreach my $syl_field (@fields) {
+ my $field=$env{'form.'.$syl_field};
+ my $type;
+ my %field_hash;
+ # only update a field if it already exists!
+ if (exists($data{'data.field.'.$syl_field})) {
+ $r->print("Creating/updated field ".$syl_field."
");
+ %field_hash = exists($data{'data.field.'.$syl_field}) ?
+ %{thaw($data{'data.field.'.$syl_field})} :
+ ();
+ $type = exists($field_hash{type}) ? $field_hash{type} : TYPE_TEXT_HTML;
+ chomp($field);
+ $field=~s/\s+$//s;
+ $field=~s/^\s+//s;
+ $field=~s/\
$//s;
+ $field=&Apache::lonfeedback::clear_out_html($field,1);
+ $field_hash{content}=$field;
+ if ($type eq TYPE_URL_INCLUDE) { # clean up included URLs
+ my $field='';
+ foreach my $value (split(/\n/,$field_hash{content})) {
+ my $url=$value;
+ # get rid of leading and trailing spaces
+ $url=~s/^\s+//;
+ $url=~s/\s+$//;
+ if ($url=~m|^https?\://([^/]+)/(.+)$|) {
+ 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=~/^https?\:/) {
+ $url=&Apache::lonnet::clutter($url);
+ }
+ # re-assemble field
+ if ($url) {
+ $field.=$url."\n";
+ }
+ }
+ $field_hash{content}=$field;
+ $field_hash{type}=TYPE_URL_INCLUDE;
+ }
+ $data{'data.field.'.$syl_field} = freeze(\%field_hash);
+ }
+ }
+ $data{'uploaded.domain'}=$env{'user.domain'};
+ $data{'uploaded.name'}=$env{'user.name'};
+ my $time = $^T;
+ $data{'uploaded.lastmodified'}=$time;
+ $data{'properties.last_modified'}=$time;
+ delete $data{'properties.v2_converted'};
+ delete $data{'properties.v2_conflict'};
+ delete $data{'properties.v2_conflict_fail'};
+ &Apache::lonnet::del('syllabus', ['properties.v2_converted',
+ 'properties.v2_conflict', 'properties.v2_conflict_fail'], $cdom, $cnum);
+
+ #2.x compatibility: write to old fields with new mapped fields
+ my %old_new_map = %{thaw($data{'data.old_new_map'})};
+ foreach my $old_field (keys(%old_new_map)) {
+ $r->print("Looking for: ".$old_field." at ".$old_new_map{$old_field}."
");
+ if (exists($data{'data.field.'.$old_new_map{$old_field}})) {
+ $r->print("updating old field ".$old_field."
");
+ my %new_field = %{thaw($data{'data.field.'.$old_new_map{$old_field}})};
+ $data{$old_field} = $new_field{content};
+ }
+ }
+
+ &Apache::lonnet::put('syllabus',\%data,$cdom,$cnum);
+ }
}
+
+#--------Functions
+ if( ($allowed || $privileged) && $target ne 'tex') {
+ my $functions=&Apache::lonhtmlcommon::start_funclist();
+ if ($allowed) {
+ #if you have the register flag, keep it
+ if($env{'form.register'} == 1) {
+ $functions.=&Apache::lonhtmlcommon::add_item_funclist(
+ ''
+ .&mt('Show Public View').''
+ .&Apache::loncommon::help_open_topic(
+ 'Uploaded_Templates_PublicView'));
+ } else {
+ $functions.=&Apache::lonhtmlcommon::add_item_funclist(
+ ''
+ .&mt('Show Public View').''
+ .&Apache::loncommon::help_open_topic(
+ 'Uploaded_Templates_PublicView'));
+ }
+ } elsif ($privileged) {
+ if($env{'form.register'} == 1) {
+ $functions.=&Apache::lonhtmlcommon::add_item_funclist(
+ ''
+ .&mt('Edit').'');
+ } else {
+ $functions.=&Apache::lonhtmlcommon::add_item_funclist(
+ ''
+ .&mt('Edit').'');
+ }
+ }
+
+ $functions.=&Apache::lonhtmlcommon::end_funclist();
+ $r->print(&Apache::loncommon::head_subbox($functions));
+ }
+
+#---------------------Print External URL Syllabus Info and Help Text
+ if( ($allowed) && ($target ne 'tex') ) {
+ my $protocol = $Apache::lonnet::protocol{$homeserver};
+ $protocol = 'http' if ($protocol ne 'https');
+ $r->print('
");
+ }
+ if ($allowed && $data{'properties.v2_conflict'} == 1) {
+ $r->print("This document was saved with LON-CAPA 3.x, then further edited in LON-CAPA 2.x.
");
+ if ($data{'properties.v2_conflict_fail'} == 1) {
+ $r->print("Some fields in LON-CAPA 2.x no longer have an equivalent in LON-CAPA 3.x. These fields were appended; some fields may be duplicated or not match.
");
+ } else {
+ $r->print("These changes were automatically transferred to LON-CAPA 3.x");
+ }
+ }
+
+#----------------------------Print Headtitle
+ if ($target ne 'tex') {
+ $r->print(''.$courseenv{'description'}.'
');
+ $r->print(''. &Apache::lonnet::domain($cdom,'description').'
');
+ } else {
+ $r->print('\noindent{\large\textbf{'.$courseenv{'description'}.'}}\\\\\\\\\textbf{'.
+ &Apache::lonnet::domain($cdom,'description').'}\\\\');
+ }
+
+# -------------------------------------------------------- Get course personnel
+ my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
+ if ($target ne 'tex') {
+ $r->print(&Apache::lonhtmlcommon::start_pick_box());
+ } else {
+ $r->print('\begin{tabular}{|p{0.45\textwidth}|p{0.45\textwidth}|}\hline');
+ }
+ my @personnel=sort(keys(%coursepersonnel));
+ my $lastpers=$personnel[$#personnel];
+ foreach my $element (@personnel) {
+ if ($target ne 'tex') {
+ $r->print(&Apache::lonhtmlcommon::row_title($element));
+ } else {
+ $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$element).' & ');
+ }
+ foreach (split(/\,/,$coursepersonnel{$element})) {
+ my ($puname,$pudom)=split(/\:/,$_);
+ if ($target ne 'tex') {
+ my $courseperson = &Apache::loncommon::plainname($puname,$pudom);
+ if (($env{'user.name'} eq '') || ($env{'user.name'} eq 'public') ||
+ ($env{'user.domain'} eq '') || ($env{'user.domain'} eq 'public')) {
+ $r->print(' '.$courseperson);
+ } else {
+ $r->print(' '.&Apache::loncommon::aboutmewrapper($courseperson,
+ $puname,$pudom));
+ }
+ } else {
+ $r->print(' '.&Apache::loncommon::plainname($puname,
+ $pudom).' ');
+ }
+ }
+ if ($target ne 'tex') {
+ my $lastclose=$element eq $lastpers?1:0;
+ $r->print(&Apache::lonhtmlcommon::row_closure($lastclose));
+ } else {
+ $r->print('\\\\ \hline');
+ }
+ }
+ if ($target ne 'tex') {
+ $r->print(&Apache::lonhtmlcommon::end_pick_box());
+ } else {
+ $r->print('\end{tabular}\\\\');
+ }
+# -------------------------------------------------------------- Announcements?
+ my $day = &Apache::lonannounce::showday(time,2,
+ &Apache::lonannounce::readcalendar($cdom.'_'.$cnum));
+ if ($target ne 'tex') {
+ if ($allowed) {
+ &Apache::lontemplate::print_start_template($r,'RSS Feeds and Blogs','LC_Box');
+ $r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit));
+ my $editurl= &Apache::lonnet::absolute_url().'/adm/'.$cdom.'/'.$cnum.'/_rss.html';
+ $r->print( ''.&mt('New RSS Feed or Blog').'');
+ &Apache::lontemplate::print_end_template($r);
+ } elsif (&Apache::lonrss::advertisefeeds($cnum,$cdom) ne '') {
+ &Apache::lontemplate::print_start_template($r,'RSS Feeds and Blogs','LC_Box');
+ $r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit));
+ &Apache::lontemplate::print_end_template($r);
+ }
+
+ } else {
+ $r->print(&Apache::lonxml::xmlparse($r,'tex',$day));
+ }
+
# ---------------------------------------------------------------- Get syllabus
if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
- $r->print('Uploaded: '.
- &Apache::loncommon::aboutmewrapper(
- &Apache::loncommon::plainname($syllabus{'uploaded.name'},
- $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
- $syllabus{'uploaded.domain'}).
- ' Last updated '.
- localtime($syllabus{'uploaded.lastmodified'}).
- '
');} 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('No syllabus information provided.
'); + $r->print('\end{document}'); } - $r->print('