# The LearningOnline Network
# Syllabus
#
# $Id: lonsyllabus.pm,v 1.150 2021/05/04 18:47:36 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::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::lonhtmlgateway;
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'},['register','forceedit','todocs',
'folderpath','title','only_body']);
# ----------------------------------------------------- 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;
} elsif (!&Apache::lonnet::is_course($cdom,$cnum)) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
&Apache::loncommon::simple_error_page($r,'No syllabus available',
'The course/community for which the syllabus was requested does not exist.');
return OK;
}
# ------------------------------------- There is such a course, get environment
my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
my $crstype = &Apache::loncommon::course_type();
# --------------------------------------------------------------- Force Student
my ($forceedit,$forcestudent);
if ($env{'form.forceedit'}) { $forceedit=1; }
if (!$forceedit) {
$forcestudent=1;
}
# --------------------------------------------------------------- Check Privileges
my $allowed = 0;
if ($env{'user.environment'}) {
# does this user have privileges to post, etc?
if ($env{'request.course.id'}
&& $cdom eq $env{'course.'.$env{'request.course.id'}.'.domain'}
&& $cnum eq $env{'course.'.$env{'request.course.id'}.'.num'}) {
$allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
if ($forcestudent or $target eq 'tex') { $allowed=0; }
}
}
# -------------------------------------------------- Let's see who handles this
my $external=$courseenv{'externalsyllabus'};
my $uploaded=$courseenv{'uploadedsyllabus'};
my $minimal=$courseenv{'minimalsyllabus'};
if (($minimal =~/\w/) || ($uploaded =~/\w/)) {
my ($item,$is_pdf);
if ($minimal =~/\w/) {
if ($external =~ m{\Q$minimal\E$}) {
undef($external);
}
$item = $minimal;
} elsif ($uploaded =~/\w/) {
if ($external =~ m{\Q$uploaded\E$}) {
undef($external);
}
$item = $uploaded;
if ($item =~ /\.pdf$/i) {
$is_pdf = 1;
}
}
unless ($allowed && $forceedit) {
my $file=&Apache::lonnet::filelocation("",$item);
if ($file =~ /\.(tex|x?html?)$/) {
my $filetype = $1;
my $filecontents=&Apache::lonnet::getfile($file);
if ($filecontents eq -1) {
$r->print(&mt('Syllabus file unavailable'));
} elsif ($filetype eq 'tex') {
if ($target eq 'tex') {
$r->print($filecontents);
} else {
my $texengine = $env{'form.texengine'};
if ($texengine eq '') {
$texengine = 'tth';
} elsif (lc($texengine) eq 'jsmath') {
$texengine = 'MathJax';
}
my $result = &Apache::lontexconvert::converted(\$filecontents,$texengine);
my %args;
&get_breadcrumbs($cdom,$cnum,$crstype,\%args);
if ($env{'form.only_body'}) {
$args{'only_body'} = 1;
}
if ($env{'request.use_absolute'}) {
$args{'use_absolute'} = $env{'request.use_absolute'};
}
$r->print(&Apache::loncommon::start_page("Syllabus",undef,\%args).
$result.
&Apache::loncommon::end_page());
}
} else {
my %mystyle;
unless ($target eq 'tex') {
$target = 'web';
}
&Apache::structuretags::reset_problem_globals();
my $oldfile = $env{'request.filename'};
$env{'request.filename'} = $item;
my $result = &Apache::lonxml::xmlparse($r,$target,$filecontents,
'',%mystyle);
&Apache::structuretags::reset_problem_globals();
&Apache::lonhomework::finished_parsing();
$env{'request.filename'} = $oldfile;
&Apache::lonxml::add_messages(\$result);
$r->print($result);
}
} else {
if ($target eq 'tex') {
$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}).
' \strut \\\\ \textbf{'.&mt('Syllabus').'} \strut \\\\ '.
&mt('Unsupported file type.').' \strut \\\\ '.
&mt('Print the syllabus directly from your web browser').
'\end{document}');
} else {
my $brcrum;
if ($env{'form.folderpath'} =~ /^supplemental/) {
my $title = $env{'form.title'};
if ($title eq '') {
$title = &mt('Syllabus');
}
$brcrum =
&Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$title,1);
}
$r->print(&Apache::lonwrapper::wrapper($r,$item,$brcrum,$env{'request.use_absolute'},
undef,$is_pdf,undef,'','',&mt('Syllabus')));
}
}
return OK;
}
} elsif ($external=~/\w/) {
unless ($allowed && $forceedit) {
if (($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public') &&
($ENV{'SERVER_PORT'} == 443) && ($external =~ m{^http://}) && !($env{'form.usehttp'})) {
my $hostname = $r->hostname();
unless ((&Apache::lonnet::uses_sts()) || (&Apache::lonnet::waf_allssl($hostname))) {
&redirect_to_http($r);
return OK;
}
}
if ($target eq 'tex') {
$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}).
' \strut \\\\ \textbf{'.&mt('Syllabus').'} \strut \\\\ '.$external.' '.
' \strut \\\\ '.&mt('Print the syllabus directly from your web browser').
'\end{document}');
} else {
my $is_ext = 1;
my ($is_pdf,$brcrum);
if ($external =~ /\.pdf$/i) {
$is_pdf = 1;
}
if ($env{'form.folderpath'} =~ /^supplemental/) {
my $title = $env{'form.title'};
if ($title eq '') {
$title = &mt('Syllabus');
}
$brcrum =
&Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$title,1);
}
$r->print(&Apache::lonwrapper::wrapper($r,$external,$brcrum,$env{'request.use_absolute'},
$is_ext,$is_pdf,undef,'','',&mt('Syllabus')));
}
return OK;
}
}
# ------------------------------------------------------------ Print the screen
if ($target eq 'tex') {
$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
}
# ------------------------------ 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');
# ---------------------------------------------------------- Load syllabus info
my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
my ($output,%displayfields,%noshow);
# This handler might be called anonymously ...
# ----------------------------------------------------- Only if not public call
if ($allowed) {
if (($env{'form.choice'} =~ /^(template|minimal|url|file)$/) ||
($env{'form.phase'} =~ /^(upload|check)_embedded$/)) {
my $earlyout;
($earlyout,$uploaded,$external,$minimal,$output) =
&save_changes($cnum,$cdom,$uploaded,$external,$minimal,
\%syllabus,\%syllabusfields,\%courseenv);
if (($env{'form.choice'} eq 'minimal') &&
($minimal eq "/uploaded/$cdom/$cnum/portfolio/syllabus/loncapa.html")) {
delete($env{'form.symb'});
delete($env{'request.symb'});
$r->internal_redirect("$minimal?editmode=1&forceedit=1");
return OK;
}
if ($earlyout) {
if ($target ne 'tex') {
&print_header($r,$cnum,$cdom,$crstype,$allowed,$forceedit,
\%syllabus,\%syllabusfields);
$r->print($output.
&Apache::loncommon::end_page());
}
return OK;
}
}
}
if ($target ne 'tex') {
&print_header($r,$cnum,$cdom,$crstype,$allowed,$forceedit,\%syllabus,
\%syllabusfields);
$r->print($output);
}
# -------------------------------------------- Determine which fields are shown
if ($syllabus{'uploaded.fields'}) {
if ($syllabus{'uploaded.fields'} eq 'none') {
foreach my $field (keys(%syllabusfields)) {
$displayfields{$field} = ' style="display:none;"';
$noshow{$field} = 1;
}
} else {
my %included;
map { $included{$_} = 1; } split(/,/,$syllabus{'uploaded.fields'});
foreach my $field (keys(%syllabusfields)) {
my ($prefix) = split(/_/,$field);
if ($included{$prefix}) {
$displayfields{$field} = ' style="display:block;"';
} else {
$displayfields{$field} = ' style="display:none;"';
$noshow{$field} = 1;
}
}
}
} else {
foreach my $field (keys(%syllabusfields)) {
if ($syllabus{$field} ne '') {
$displayfields{$field} = ' style="display:block;"';
} else {
$displayfields{$field} = ' style="display:none;"';
}
}
}
if ($allowed) {
#---------------------------------- Print External URL Syllabus Info if editing
if ($target ne 'tex') {
my $hostname = &Apache::lonnet::hostname($homeserver);
my $protocol = $Apache::lonnet::protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');
my $alias = &Apache::lonnet::use_proxy_alias($r,$homeserver);
$hostname = $alias if ($alias ne '');
my $link = $protocol.'://'.$hostname.$r->uri;
$r->print('<div class="LC_left_float">'
.'<span class="LC_help_open_topic LC_info">'
.'<span class="LC_info">'
.&mt('Public link (no log-in): [_1]','<tt>'.$link.'</tt>')
.' </span>'.&Apache::loncommon::help_open_topic('Syllabus_ExtLink')
.'</span>'
.'</div><div style="padding:0;clear:both;margin:0;border:0"></div>'."\n");
my $lonhost = $r->dir_config('lonHostID');
$r->print(&chooser($r,$external,$uploaded,$minimal,$cdom,$cnum,$lonhost,
\%syllabusfields,\%syllabus));
}
} else {
#--------------------------------------------- Print last update unless editing
my $lastmod=$syllabus{'uploaded.lastmodified'};
$lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
my $who;
if ($syllabus{'uploaded.lastmodified'}) {
if (($env{'user.name'} ne 'public') && ($env{'user.domain'} ne 'public')) {
$who = &Apache::loncommon::aboutmewrapper(
&Apache::loncommon::plainname($syllabus{'uploaded.name'},
$syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
$syllabus{'uploaded.domain'});
} else {
# Public user?
# Only display name of user, but no link to personal information page
$who = &Apache::loncommon::plainname(
$syllabus{'uploaded.name'},
$syllabus{'uploaded.domain'});
}
}
if ($target ne 'tex') {
$r->print('<div class="LC_info">'.&mt('Last updated').': '.
$lastmod . ' '.
($who ? &mt('by').' '.$who
: '' ) .
'</div>' );
} else {
$r->print('\\\\ '.&mt('Last updated').': '.$lastmod.' '.
($who? &mt('by').'\\\\ '.
&Apache::loncommon::plainname($syllabus{'uploaded.name'},$syllabus{'uploaded.domain'})
:'')
.'\\\\');
}
}
#-------------------------------------------------------------- Print Headtitle
if ($target ne 'tex') {
my $display = 'block';
if ($external || $uploaded || $minimal) {
$display = 'none';
}
$r->print('<div class="LC_Box" id="template" style="display: '.$display.'">'.
'<h2 class="LC_hcell">'.$courseenv{'description'}.'</h2>');
if ($allowed) {
$r->print('<div style="margin: 0; float:left;">'.
'<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>'.
'</div>');
# Print Help Text if editing at right side of screen
$r->print('<div style="margin: 0; float:right;">'.
&Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).
'</div><br clear="all" />');
} else {
$r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');
}
} else {
$r->print('\noindent{\large\textbf{'.$courseenv{'description'}.'}}\\\\\\\\\textbf{'.
&Apache::lonnet::domain($cdom,'description').'}\\\\');
}
# -------------------------------------------------------- Get course personnel
my $hidepersonnel;
if (($syllabus{'uploaded.fields'}) &&
(($syllabus{'uploaded.fields'} eq 'none') ||
($syllabus{'uploaded.fields'} !~ /000/))) {
$hidepersonnel = 1;
}
if ($target ne 'tex') {
if ($allowed) {
my $display = ' style="display:block;"';
if ($hidepersonnel) {
$display = ' style="display:none;"';
}
&Apache::lontemplate::print_start_template($r,&mt('Personnel'),'LC_Box',
'box_000_showpeople',$display);
$r->print(&get_personnel($r,$target,$cdom,$cnum,$allowed,$crstype,\%syllabus));
&Apache::lontemplate::print_end_template($r);
} else {
unless ($hidepersonnel) {
&Apache::lontemplate::print_start_template($r,&mt('Personnel'),'LC_Box');
$r->print(&get_personnel($r,$target,$cdom,$cnum,$allowed,$crstype,\%syllabus));
&Apache::lontemplate::print_end_template($r);
}
}
} else {
unless ($hidepersonnel) {
$r->print(&get_personnel($r,$target,$cdom,$cnum,$allowed,$crstype,%syllabus));
}
}
# -------------------------------------------------------------- Announcements?
my $day = &Apache::lonannounce::showday(time,2,
&Apache::lonannounce::readcalendar($cdom.'_'.$cnum));
my $hidefeeds;
if (($syllabus{'uploaded.fields'}) &&
(($syllabus{'uploaded.fields'} eq 'none') ||
($syllabus{'uploaded.fields'} !~ /111/))) {
$hidefeeds = 1;
}
if ($target ne 'tex') {
if ($allowed) {
my $display = ' style="display:block;"';
if ($hidefeeds) {
$display = ' style="display:none;"';
}
&Apache::lontemplate::print_start_template($r,&mt('RSS Feeds and Blogs'),'LC_Box',
'box_111_showrssfeeds',$display);
my ($numfeeds,$hiddenfeeds,$rsslinktext);
my $feeds=&Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit,\$numfeeds,
\$hiddenfeeds);
if ($numfeeds) {
$r->print($feeds);
$rsslinktext = &mt('New RSS Feed or Blog');
} else {
my $msg = '<br />'.
&mt("RSS Feeds and Blogs item is not included in a student's view of the syllabus.");
if ($hiddenfeeds) {
$r->print('<p class="LC_info">'.
&mt('All feeds currently hidden').
$msg.
'</p>');
} else {
$r->print('<p class="LC_info">'.
&mt('No current feeds').
$msg.
'</p>');
}
$rsslinktext = &mt('Manage Course RSS Feeds/Blogs');
if ($crstype eq 'Community') {
$rsslinktext = &mt('Manage Community RSS Feeds/Blogs');
}
}
my $editurl= &Apache::lonnet::absolute_url().'/adm/'.$cdom.'/'.$cnum.'/_rss.html';
$r->print( '<a href="'.$editurl.'">'.$rsslinktext.'</a>');
&Apache::lontemplate::print_end_template($r);
} else {
unless ($hidefeeds) {
my $feeds = &Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit);
if ($feeds ne '') {
&Apache::lontemplate::print_start_template($r,&mt('RSS Feeds and Blogs'),'LC_Box');
$r->print($feeds);
&Apache::lontemplate::print_end_template($r);
}
}
}
} else {
$r->print(&Apache::lonxml::xmlparse($r,'tex',$day));
}
# ---------------------------------------------------------------- Get syllabus
if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
my $url_include_handler = sub {
my ($r, $field, $message, $group, $data_ref, $fields_ref, $target, $allowed, $display) = @_;
my %data = %{$data_ref};
my %fields = %{$fields_ref};
my $urls=$message;
$message='';
foreach my $filelink (split(/\n/,$urls)) {
my $output='';
# embed style?
my ($curfext)=($filelink=~/\.([^\.]+)$/);
my $embstyle=&Apache::loncommon::fileembstyle($curfext);
if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {# make ssi call and remove everything but the body contents
$output=&Apache::lonnet::ssi_body($filelink);
} elsif ($embstyle eq 'img') {# embed as an image
$output='<img src="'.$filelink.'" />';
}
if ($output ne '') {
if ($target ne 'tex') {
$message.='<p>'.$output.'</p>';
} else {
$message.=' '.&Apache::lonxml::xmlparse($r,'tex','<p>'.$output.'</p>').' ';
}
}
}
if ($allowed) {
&Apache::lonfeedback::newline_to_br(\$urls);
&Apache::lontemplate::print_start_template($r,$fields{$field}.
&Apache::loncommon::help_open_topic('Syllabus_URLs'),'LC_Box',
'box_'.$field,$display);
$r->print($urls);
$r->print("<br /><div>");
&Apache::lontemplate::print_textarea_template($r, $data{$field},
$field, Apache::lontemplate->RICH_TEXT_ALWAYS_OFF);
&Apache::lontemplate::print_saveall_template($r);
$r->print("</div>");
&Apache::lontemplate::print_end_template($r);
} else {
$r->print($message);
}
};
my %custom_hash = ( 'lll_includeurl' => $url_include_handler );
&Apache::lontemplate::print_template_fields($r, \%syllabus, \%syllabusfields,
$target, $allowed, Apache::lontemplate->RICH_TEXT_DETECT_HTML, \%custom_hash,
undef,\%displayfields,\%noshow);
if ($allowed) {
$r->print('</div></form>'.
&Apache::lonhtmlcommon::htmlareaselectactive());
}
} else {
if ($target ne 'tex') {$r->print('<p class="LC_info">');} else {$r->print('\par ');}
$r->print(&mt('No syllabus information provided.'));
if ($target ne 'tex') {$r->print('</p>');}
}
if ($target ne 'tex') {
if ($env{'form.backto'} eq 'coursecatalog') {
$r->print('<form name="backtocat" method="post" action="/adm/coursecatalog">'.
&Apache::lonhtmlcommon::echo_form_input(['backto','courseid']).
'</form>');
}
$r->print(&Apache::loncommon::end_page());
} else {
$r->print('\end{document}');
}
return OK;
}
sub print_header {
my ($r,$cnum,$cdom,$crstype,$allowed,$forceedit,$syllabus,$syllabusfields) = @_;
return unless ((ref($syllabus) eq 'HASH') || (ref($syllabusfields) eq 'HASH'));
# ----------------------------------------------------------------- Make header
my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
my $js;
if ($env{'form.backto'} eq 'coursecatalog') {
$js .= <<"ENDSCRIPT";
<script type="text/javascript">
// <![CDATA[
function ToCatalog(caller) {
numidx = getIndexByName('coursenum');
if (numidx > -1) {
if (caller != 'details') {
document.backtocat.elements[numidx].value = '';
}
}
document.backtocat.submit();
}
function getIndexByName(item) {
for (var i=0;i<document.backtocat.elements.length;i++) {
if (document.backtocat.elements[i].name == item) {
return i;
}
}
return -1;
}
// ]]>
</script>
ENDSCRIPT
}
if ($allowed && $forceedit) {
my $check_uncheck = &Apache::loncommon::check_uncheck_jscript();
my @fieldnames = sort(keys(%{$syllabusfields}));
unshift(@fieldnames,'000_showpeople','111_showrssfeeds');
my (@checked,@unchecked);
if ($syllabus->{'uploaded.fields'} eq 'none') {
my $lastidx = scalar(@fieldnames)-1;
@unchecked = (0..$lastidx);
} elsif ($syllabus->{'uploaded.fields'}) {
my %included;
map { $included{$_} = 1; } split(/,/,$syllabus->{'uploaded.fields'});
for (my $i=0; $i<@fieldnames; $i++) {
my ($prefix) = split(/_/,$fieldnames[$i]);
if ($included{$prefix}) {
push(@checked,$i);
} else {
push(@unchecked,$i);
}
}
} else {
@checked = (0,1);
for (my $i=2; $i<@fieldnames; $i++) {
if ($syllabus->{$fieldnames[$i]}) {
push(@checked,$i);
} else {
push(@unchecked,$i);
}
}
}
my $fieldstr = "var fields = new Array('".join("','",@fieldnames)."');";
my $checkedstr = "var include = new Array('".join("','",@checked)."');";
my $uncheckedstr = "var exclude = new Array('".join("','",@unchecked)."');";
my $invurl = &mt('Invalid URL');
&js_escape(\$invurl);
my $urlregexp = <<'ENDREGEXP';
/^([a-z]([a-z]|\d|\+|-|\.)*):(\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?((\[(|(v[\da-f]{1,}\.(([a-z]|\d|-|\.|_|~)|[!\$&'\(\)\*\+,;=]|:)+))\])|((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=])*)(:\d*)?)(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*|(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)|((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)|((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)){0})(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i
ENDREGEXP
$js .= <<"ENDSCRIPT";
<script type="text/javascript">
// <![CDATA[
function toggleEditor(pick) {
var choices = new Array('template','minimal','url','file','templatebox');
for (var i=0; i<choices.length; i++) {
if (((choices[i] == 'templatebox') && (pick == 'template')) ||
(choices[i] == pick)) {
document.getElementById(choices[i]).style.display='block';
} else {
document.getElementById(choices[i]).style.display='none';
}
}
return;
}
var regexp = $urlregexp;
function extUrlPreview(caller,protocol) {
if (document.getElementById(caller)) {
var url = document.getElementById(caller).value;
if (regexp.test(url)) {
var http_regex = /^http\:\/\//gi;
if ((protocol == 'https') && (http_regex.test(url))) {
window.open(url,"syllabuspreview","height=400,width=500,scrollbars=1,resizable=1,menubar=0,location=1");
} else {
openMyModal(url,500,400,'yes');
}
} else {
alert("$invurl");
}
}
}
function toggleBox(name,caller) {
if (name == 'all') {
if (document.syllabus.showfield.length > 0) {
for (var i=0; i<document.syllabus.showfield.length; i++) {
if (document.syllabus.showfield[i].checked) {
if (document.getElementById('box_'+document.syllabus.showfield[i].value)) {
document.getElementById('box_'+document.syllabus.showfield[i].value).style.display='block';
}
} else {
if (document.getElementById('box_'+document.syllabus.showfield[i].value)) {
document.getElementById('box_'+document.syllabus.showfield[i].value).style.display='none';
}
}
}
}
} else {
if (caller.checked) {
if (document.getElementById('box_'+caller.value)) {
document.getElementById('box_'+caller.value).style.display='block';
}
} else {
if (document.getElementById('box_'+caller.value)) {
document.getElementById('box_'+caller.value).style.display='none';
}
}
}
return;
}
function setTemplateBoxes() {
$fieldstr
$checkedstr
$uncheckedstr
if (include.length > 0) {
for (var i=0; i<include.length; i++) {
if (document.getElementById('showfield_'+include[i])) {
document.getElementById('showfield_'+include[i]).checked = true;
if (document.getElementById('box_'+fields[include[i]])) {
document.getElementById('box_'+fields[include[i]]).style.display='block';
}
}
}
}
if (exclude.length > 0) {
for (var i=0; i<exclude.length; i++) {
if (document.getElementById('showfield_'+exclude[i])) {
document.getElementById('showfield_'+exclude[i]).checked = false;
if (document.getElementById('box_'+fields[exclude[i]])) {
document.getElementById('box_'+fields[exclude[i]]).style.display='none';
}
}
}
}
return;
}
$check_uncheck
// ]]>
</script>
ENDSCRIPT
}
my $args = {'function' => undef,
'domain' => $cdom};
my $forcereg;
if ($env{'form.register'}) {
$forcereg = 1;
$args->{'force_register'} = $forcereg;
}
if ($env{'form.backto'} eq 'coursecatalog') {
&Apache::lonhtmlcommon::clear_breadcrumbs();
my $brcrum = [{href=>"javascript:ToCatalog();",
text=>&mt('Course/Community Catalog'),
no_mt=>1}
];
if ($env{'form.coursenum'} ne '') {
push(@{$brcrum},
{href=>"javascript:ToCatalog('details')",
text=>"Course details"});
}
push(@{$brcrum},
{href=>$r->uri,
text=>"Course syllabus"});
$args->{'bread_crumbs'} = $brcrum;
} else {
&get_breadcrumbs($cdom,$cnum,$crstype,$args);
}
if ($allowed) {
my %loaditem = (
onload => 'setTemplateBoxes();',
);
$args->{'add_entries'} = \%loaditem;
} else {
if ($env{'request.use_absolute'}) {
$args->{'use_absolute'} = $env{'request.use_absolute'};
}
}
if ($env{'form.only_body'}) {
$args->{'only_body'} = 1;
}
$args->{'hostname'} = $r->hostname();
my $start_page =
&Apache::loncommon::start_page("Syllabus", $rss_link.$js,$args);
if ($start_page) {
$r->print($start_page);
}
}
sub get_breadcrumbs{
my ($cdom,$cnum,$crstype,$args) = @_;
return unless (ref($args) eq 'HASH');
if ($env{'form.folderpath'} =~ /^supplemental/) {
my $title = $env{'form.title'};
if ($title eq '') {
$title = &mt('Syllabus');
}
my $brcrum =
&Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$title,1);
if (ref($brcrum) eq 'ARRAY') {
$args->{'bread_crumbs'} = $brcrum;
}
} else {
if ((&Apache::lonnet::is_on_map("public/$cdom/$cnum/syllabus"))
&& (($env{'form.symb'}) || ($env{'form.register'}))) {
&Apache::lonhtmlcommon::clear_breadcrumbs();
} else {
$args->{'bread_crumbs'} = [
{'href' => "/public/$cdom/$cnum/syllabus",
'text' => 'Syllabus'},
];
}
}
return;
}
sub chooser {
my ($r,$external,$uploaded,$minimal,$cdom,$cnum,$lonhost,$fields,$values) = @_;
my %lt = &Apache::lonlocal::texthash(
'type' => 'Syllabus Type',
'url' => 'External URL',
'file' => 'Uploaded file',
'minimal' => 'Minimal template',
'template' => 'Standard template',
'templateboxes' => 'Choose template items ... ',
'curr' => 'Current:',
'rep' => 'Replace:',
'upl' => 'Upload:',
'pr' => 'Preview',
'save' => 'Save',
'sved' => 'Save and Edit',
'chourl' => 'External URL',
'chofile' => 'Uploaded syllabus file',
'parse' => 'Upload embedded images/multimedia files if HTML file',
);
my %checked = (
file => '',
minimal => '',
url => '',
template => '',
);
my %display = (
file => 'none',
minimal => 'none',
url => 'none',
templatebox => 'none',
);
my $check = ' checked="checked" ';
if ($uploaded) {
$checked{'file'} = $check;
$display{'file'} = 'block';
} elsif ($external) {
$checked{'url'} = $check;
$display{'url'} = 'block';
} elsif ($minimal) {
$checked{'minimal'} = $check;
$display{'minimal'} = 'block';
} else {
$checked{'template'} = $check;
$checked{'templatebox'} = $check;
$display{'templatebox'} = 'block';
}
my $protocol = ($ENV{'SERVER_PORT'} == 443?'https':'http');
my $output =
'<form name="syllabus" method="post" enctype="multipart/form-data" action="">'."\n".
'<input type="hidden" name="forceedit" value="1" />'."\n".
'<div class="LC_left_float"><fieldset><legend>'.$lt{'type'}.'</legend>';
foreach my $item ('minimal','template','url','file') {
$output .= '<label><input type="radio" name="choice" value="'.$item.'" '.$checked{$item}.' onclick="toggleEditor('."'$item'".')" />'.
$lt{$item}.'</label><br />';
}
$output .= '</fieldset></div>'."\n".
'<div id="url" class="LC_left_float" style="display: '.$display{'url'}.'">'."\n".
'<fieldset><legend>'.$lt{'chourl'}.'</legend><span class="LC_nobreak">'."\n".
'<a href="javascript:extUrlPreview('."'syllabusurl','$protocol'".');">'.$lt{'pr'}.'</a></span> '."\n".
'<input type="text" id="syllabusurl" name="externalsyllabus" value="'.$external.'" size="55" />'."\n".
' <input type="submit" name="storeurl" value="'.$lt{'save'}.'" />'."\n".
'</fieldset></div>'."\n".
'<div id="minimal" class="LC_left_float" style="display: '.$display{'minimal'}.'">'."\n".
'<fieldset><legend>'.$lt{'minimal'}.'</legend>';
if ($minimal) {
my ($absurl,$filename,$depbutton) = &syllabus_file_info($r,$minimal,$cnum,$cdom,$lonhost,'minimal');
$output .= '<a href="javascript:extUrlPreview('."'currminimal'".');">'.$lt{'pr'}.'</a>'.
'<input type="hidden" name="minimalfile" value="'.&HTML::Entities::encode($absurl).'?inhibitmenu=yes" id="currminimal" />'.
$depbutton;
} else {
$output .= &mt('Title of Syllabus Page:').' '.
'<input type="text" id="minimaltitle" name="syllabustitle" value="'.&mt('Syllabus').'" size="30" />'."\n".
' <input type="submit" name="storeminimal" value="'.$lt{'sved'}.'" />'."\n";
}
$output .= '</fieldset></div>'."\n".
'<div id="file" class="LC_left_float" style="display: '.$display{'file'}.'">'."\n".
'<fieldset><legend>'.$lt{'file'}.'</legend>';
if ($uploaded) {
my ($absurl,$filename,$depbutton) = &syllabus_file_info($r,$uploaded,$cnum,$cdom,$lonhost,'file');
$output .= '<span class="LC_nobreak">'.$lt{'curr'}.' '.
'<input type="hidden" name="uploadedfile" value="'.&HTML::Entities::encode($absurl).'?inhibitmenu=yes" id="currfile" />'.
'<a href="javascript:extUrlPreview('."'currfile'".');">'.$filename.'</a></span>'.$depbutton.
'<br /><br />'.$lt{'rep'};
} else {
$output .= $lt{'upl'};
}
$output .= '<br />'."\n".
'<span class="LC_nobreak">'.
'<input type="file" name="syllabusfile" size="55" />'."\n".
' <input type="submit" name="storefile" value="'.$lt{'save'}.'" />'.
'</span><br />'.
'<label>'.
'<input type="checkbox" name="parserflag" checked="checked" />'.
$lt{'parse'}.
'</label>'.
'</fieldset></div>'.
'<div id="templatebox" class="LC_left_float" style="display: '.
$display{'templatebox'}.';"><fieldset><legend>'.$lt{'templateboxes'}.
' <input type="button" value="'.&mt('check all').'" '.
'onclick="javascript:checkAll('."document.syllabus.showfield".');javascript:toggleBox('."'all'".');" />'.
(' 'x2).
'<input type="button" value="'.&mt('uncheck all').'" '.
'onclick="javascript:uncheckAll('."document.syllabus.showfield".');javascript:toggleBox('."'all'".');" />'.
'</legend>'.
&fields_check_uncheck($fields,$values).
'</fieldset><br />'.
'<input type="submit" name="storesyl" value="'.&mt('Save All').'" />'.
'</div>';
$output .= '<div style="padding:0;clear:both;margin:0;border:0"></div>';
return $output;
}
sub syllabus_file_info {
my ($r,$item,$cnum,$cdom,$lonhost,$context) = @_;
my $hostname = &Apache::lonnet::hostname($lonhost);
my $protocol = $Apache::lonnet::protocol{$lonhost};
$protocol = 'http' if ($protocol ne 'https');
my $alias = &Apache::lonnet::use_proxy_alias($r,$lonhost);
$hostname = $alias if ($alias ne '');
my $absurl = $protocol.'://'.$hostname.$item;
my ($filename) = ($item =~ m{([^/]+)$});
my $file=&Apache::lonnet::filelocation("",$item);
my ($depbutton,$filetype,$editable);
if ($file =~ /\.(xhtml|xml|tex|html|htm)$/) {
$filetype=$1;
}
if ($filetype) {
unless ($filetype eq 'tex') {
$filetype='html';
}
}
if ($filetype eq 'html') {
my $filecontents=&Apache::lonnet::getfile($file);
unless ($filecontents eq -1) {
my $mm = new File::MMagic;
my $mimetype = $mm->checktype_contents($filecontents);
if ($mimetype eq 'text/html') {
my (%codebase,%allfiles);
my $parse_result = &Apache::lonnet::extract_embedded_items($item,\%allfiles,
\%codebase,\$filecontents);
my $actionurl = "/public/$cdom/$cnum/syllabus";
my ($ignore,$num,$numpathchanges,$existing,$mapping) =
&Apache::loncommon::ask_for_embedded_content($actionurl,undef,\%allfiles,
\%codebase,
{'context' => 'rewrites',
'ignore_remote_references' => 1,});
$editable = 1;
}
}
}
$depbutton = (' ' x 3).
&editfile_button($item,$context,$editable).
&editbutton_js();
return ($absurl,$filename,$depbutton);
}
sub fields_check_uncheck {
my ($fields,$values) = @_;
return unless ((ref($fields) eq 'HASH') && (ref($values) eq 'HASH'));
my $numinrow = 4;
my $table;
my @fieldnames = sort(keys(%{$fields}));
unshift(@fieldnames,'000_showpeople','111_showrssfeeds');
my $numfields = scalar(@fieldnames);
my %included;
if (($values->{'uploaded.fields'}) && ($values->{'uploaded.fields'} ne 'none')) {
map { $included{$_} = 1; } split(/,/,$values->{'uploaded.fields'});
}
for (my $i=0; $i<$numfields; $i++) {
my ($name,$checked);
if ($fieldnames[$i] eq '000_showpeople') {
$name = &mt('Personnel');
} elsif ($fieldnames[$i] eq '111_showrssfeeds') {
$name = &mt('RSS Feeds and Blogs');
} else {
$name = $fields->{$fieldnames[$i]};
}
if ($values->{'uploaded.fields'}) {
unless ($values->{'uploaded.fields'} eq 'none') {
my ($prefix) = split(/_/,$fieldnames[$i]);
if ($included{$prefix}) {
$checked = ' checked="checked"';
}
}
} else {
if ($fieldnames[$i] eq '000_showpeople') {
$checked = ' checked="checked"';
} elsif ($fieldnames[$i] eq '111_showrssfeeds') {
$checked = ' checked="checked"';
} else {
if ($values->{$fieldnames[$i]} ne '') {
$checked = ' checked="checked"';
}
}
}
my $rem = $i%($numinrow);
if ($rem == 0) {
if (($i > 0) && ($i < $numfields)) {
$table .= '</tr>';
}
if ($i < $numfields) {
$table .= '<tr>';
}
}
if ($i == $numfields-1) {
my $rem = $numfields%($numinrow);
my $colsleft = $numinrow - $rem;
if ($colsleft > 1) {
$table .= '<td colspan="'.$colsleft.'">';
} else {
$table .= '</td>';
}
} else {
$table .= '<td>';
}
$table .=
'<label><input type="checkbox" name="showfield" value="'.$fieldnames[$i].'" '.
$checked.' id="showfield_'.$i.'" onclick="javascript:toggleBox('."'$fieldnames[$i]',this".');" />'.
$name.'</label></td>'."\n";
}
if ($table ne '') {
my $rem = $numfields%($numinrow);
my $colsleft = $numinrow - $rem;
if ($colsleft > 1 ) {
$table .= '<td colspan="'.$colsleft.'"> </td>';
} elsif ($colsleft == 1) {
$table .= '<td> </td>';
}
$table = '<table>'.$table.'</tr></table>';
}
return $table;
}
sub get_personnel {
my ($r,$target,$cdom,$cnum,$allowed,$crstype,$syllabus) = @_;
my (%hiddenroles,%hiddenusers);
if (ref($syllabus) eq 'HASH') {
if (ref($syllabus->{'personnel'}) eq 'HASH') {
if ($syllabus->{'personnel'}{'hiderole'}) {
map { $hiddenroles{$_} = 1; } split(/,/,$syllabus->{'personnel'}{'hiderole'});
}
if ($syllabus->{'personnel'}{'hideuser'}) {
map { $hiddenusers{$_} = 1; } split(/,/,$syllabus->{'personnel'}{'hideuser'});
}
}
}
my $output;
my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum,1);
if ($target ne 'tex') {
if ($allowed) {
$r->print(&Apache::loncommon::start_data_table().
&Apache::loncommon::start_data_table_header_row().
'<th>'.&mt('Role hidden?').'</th><th>'.&mt('Role').'</th>'.
'<th>'.&mt('Personnel (hidden if checked)').'</th>'.
&Apache::loncommon::end_data_table_header_row());
} else {
$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 $element (@personnel) {
unless ($allowed) {
next if ($hiddenroles{$element})
}
my ($role,$sec);
if ($element =~ /:/) {
($role,$sec) = split(/:/,$element);
} else {
$role = $element;
}
my $roletext = &Apache::lonnet::plaintext($role,$crstype);
if ($sec) {
$roletext .=' ('.&Apache::lonlocal::mt('Section [_1]',$sec).')';
}
if ($target ne 'tex') {
if ($allowed) {
my $checked;
if ($hiddenroles{$element}) {
$checked = ' checked="checked"';
}
$r->print(&Apache::loncommon::start_data_table_row().
'<td>'.
'<input type="checkbox" name="hiderole" value="'.$element.'" '.
$checked.' />'.
'</td><td>'.$roletext.'</td><td>');
} else {
$r->print(&Apache::lonhtmlcommon::row_title($roletext));
}
} else {
$r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$roletext).' & ');
}
my @coursepersonlist;
foreach my $user (split(/\,/,$coursepersonnel{$element})) {
my ($puname,$pudom)=split(/\:/,$user);
if ($target ne 'tex') {
my $courseperson = &Apache::loncommon::plainname($puname,$pudom);
my $checked;
if ($hiddenusers{$element.'&'.$puname.':'.$pudom}) {
$checked = ' checked="checked"';
}
if ($allowed) {
my $item = '<span class="LC_nobreak"><label>'.
'<input type="checkbox" name="hideuser" value="'.$element.'&'.$puname.':'.$pudom.'"'.$checked.' />'.
&Apache::loncommon::aboutmewrapper($courseperson
,
$puname,$pudom).
'</label>'.(' 'x2).'</span> ';
push(@coursepersonlist,$item);
} else {
next if ($hiddenusers{$element.'&'.$puname.':'.$pudom});
if (($env{'user.name'} eq '') || ($env{'user.name'} eq 'public') ||
($env{'user.domain'} eq '') || ($env{'user.domain'} eq 'public')) {
push(@coursepersonlist,$courseperson);
} else {
push(@coursepersonlist,&Apache::loncommon::aboutmewrapper($courseperson,
$puname,$pudom));
}
}
} else {
push(@coursepersonlist,&Apache::loncommon::plainname($puname,
$pudom).' ');
}
}
if ($allowed) {
$r->print(join('',@coursepersonlist));
} else {
$r->print(join(', ',@coursepersonlist));
}
if ($target ne 'tex') {
if ($allowed) {
$r->print('</td>'.&Apache::loncommon::end_data_table_row());
} else {
my $lastclose=$element eq $lastpers?1:0;
$r->print(&Apache::lonhtmlcommon::row_closure($lastclose));
}
} else {
$r->print('\\\\ \hline');
}
}
if ($target ne 'tex') {
if ($allowed) {
$r->print(&Apache::loncommon::end_data_table());
} else {
$r->print(&Apache::lonhtmlcommon::end_pick_box());
}
} else {
$r->print('\end{tabular}\\\\');
}
return;
}
sub save_changes {
my ($cnum,$cdom,$uploaded,$external,$minimal,$syllabus,$syllabusfields,$courseenv) = @_;
my ($earlyout,$output);
unless ((ref($syllabus) eq 'HASH') && (ref($syllabusfields) eq 'HASH') ||
(ref($courseenv) eq 'HASH')) {
return ($earlyout,$uploaded,$external,$minimal,$output);
}
my ($was_ext,$is_ext,$putres);
if ($external) {
$was_ext = $external;
}
if (($env{'form.deleteuploaded_file'}) || ($env{'form.deleteuploaded_minimal'})) {
my %storehash;
if (($env{'form.choice'} eq 'file') &&
($env{'form.deleteuploaded_file'}) && ($uploaded =~ /\w/)) {
if ($courseenv->{'uploadedsyllabus'} =~ m{^\Q/uploaded/$cdom/$cnum/portfolio\E(/syllabus/.+)$}) {
my $filename = $1;
&update_access_permissions($cdom,$cnum,$filename);
}
&Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.uploadedsyllabus');
&Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.externalsyllabus');
$storehash{'uploadedsyllabus'} = '';
$storehash{'externalsyllabus'} = '';
$putres = &Apache::lonnet::put('environment',\%storehash,$cdom,$cnum);
undef($uploaded);
undef($external);
} elsif (($env{'form.choice'} eq 'minimal') &&
($env{'form.deleteuploaded_minimal'}) && ($minimal =~ /\w/)) {
my $minimalurl = "/uploaded/$cdom/$cnum/portfolio/syllabus/loncapa.html";
if ($courseenv->{'minimalsyllabus'} eq "$minimalurl") {
my $filecontents=&Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$minimalurl));
unless ($filecontents eq -1) {
$env{'form.output'} = $filecontents;
&Apache::lonnet::finishuserfileupload($cnum,$cdom,'output',
'portfolio/syllabus/loncapa.html.bak');
$minimalurl = &default_minimal_syllabus($cnum,$cdom);
}
}
&update_access_permissions($cdom,$cnum,'/syllabus/loncapa.html');
&Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.externalsyllabus');
&Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.minimalsyllabus');
$storehash{'externalsyllabus'} = '';
$storehash{'minimalsyllabus'} = '';
$putres = &Apache::lonnet::put('environment',\%storehash,$cdom,$cnum);
undef($external);
undef($minimal);
}
} elsif ($env{'form.choice'} eq 'template') {
#store what the user typed in to the template
my @shown = &Apache::loncommon::get_env_multiple('form.showfield');
$syllabus->{'uploaded.fields'} = '';
if (@shown == 0) {
$syllabus->{'uploaded.fields'} = 'none';
} else {
foreach my $field (sort(@shown)) {
if (($field eq '000_showpeople') ||
($field eq '111_showrssfeeds') ||
($syllabusfields->{$field})) {
my ($prefix) = split(/_/,$field);
$syllabus->{'uploaded.fields'} .= $prefix.',';
}
if ($field eq '000_showpeople') {
my @hideusers = &Apache::loncommon::get_env_multiple('form.hideuser');
my @hideroles = &Apache::loncommon::get_env_multiple('form.hiderole');
my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum,1);
my %personnel;
foreach my $key (keys(%coursepersonnel)) {
map { $personnel{$key}{$_} = 1; } split(/,/,$coursepersonnel{$key});
}
%{$syllabus->{'personnel'}} = ();
$syllabus->{'personnel'}{'hideuser'} = '';
$syllabus->{'personnel'}{'hiderole'} = '';
foreach my $role (@hideroles) {
if (exists($personnel{$role})) {
$syllabus->{'personnel'}{'hiderole'} .= $role.',';
}
}
foreach my $item (@hideusers) {
my ($role,$user) = split(/\&/,$item);
if (ref($personnel{$role}) eq 'HASH') {
if ($personnel{$role}{$user}) {
$syllabus->{'personnel'}{'hideuser'} .= $item.',';
}
}
}
$syllabus->{'personnel'}{'hideuser'} =~ s/,$//;
$syllabus->{'personnel'}{'hiderole'} =~ s/,$//;
}
}
$syllabus->{'uploaded.fields'} =~ s/,$//;
}
foreach my $syl_field (keys(%{$syllabusfields})) {
my $field=$env{'form.'.$syl_field};
chomp($field);
my $gateway = Apache::lonhtmlgateway->new();
$field = $gateway->process_incoming_html($field,1);
#here it will be stored
$syllabus->{$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 ($url=~m|^https?\://([^/]+)/(.+)$|) {
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";
}
}
$syllabus->{$syl_field}=$field;
}
}
my $now = time;
$syllabus->{'uploaded.domain'}=$env{'user.domain'};
$syllabus->{'uploaded.name'}=$env{'user.name'};
$syllabus->{'uploaded.lastmodified'} = $now;
$putres = &Apache::lonnet::put('syllabus',$syllabus,$cdom,$cnum);
if ($putres eq 'ok') {
($uploaded,$minimal,$external) =
&update_syllabus_env($cdom,$cnum,$courseenv,$env{'form.choice'},$uploaded,
$minimal,$external);
$output = '<div>'.
&Apache::lonhtmlcommon::confirm_success(&mt('Template saved.')).
'</div>';
} else {
$output = '<div class="LC_error">'.
&mt('An error occurred storing the template: [_1]',$putres).
'</div>';
}
} elsif ($env{'form.choice'} eq 'url') {
if ($env{'form.externalsyllabus'} =~ m{^https?://}) {
if ($env{'form.externalsyllabus'} eq $external) {
$output = '<div class="LC_info">'.
&mt('External URL unchanged.').
'</div>';
($uploaded,$minimal,$external) =
&update_syllabus_env($cdom,$cnum,$courseenv,$env{'form.choice'},$uploaded,
$minimal,$external);
} else {
$external=$env{'form.externalsyllabus'};
$external =~ s/(`)//g;
$putres =
&Apache::lonnet::put('environment',{externalsyllabus=>$external},
$cdom,$cnum);
if ($putres eq 'ok') {
&Apache::lonnet::appenv({'course.'.$env{'request.course.id'}.'.externalsyllabus' => $external});
$output = '<div>'.
&Apache::lonhtmlcommon::confirm_success(&mt('External URL saved.')).
'</div>';
($uploaded,$minimal,$external) =
&update_syllabus_env($cdom,$cnum,$courseenv,$env{'form.choice'},$uploaded,
$minimal,$external);
} else {
$output = '<div class="LC_error">'.
&mt('An error occurred storing the external URL: [_1]',$putres).
'</div>';
}
}
$is_ext = $external;
} else {
$output = '<div class="LC_error">'.
&mt('External URL not saved -- invalid URL.').
'</div>';
}
} elsif (($env{'form.choice'} eq 'file') || ($env{'form.choice'} eq 'minimal')) {
# Process file upload - phase one - upload and parse primary file.
my ($upload_result,$uploadphase,$url,$needlink,$error,$errormsg);
if ($env{'form.choice'} eq 'file') {
if ($env{'form.syllabusfile.filename'}) {
my %allfiles = ();
my %codebase = ();
($url,$needlink) = &process_upload(\$output,$cnum,$cdom,
\%allfiles,\%codebase);
} else {
$output = '<div class="LC_info">'.
&mt('No file uploaded').
'</div>';
}
} elsif ($env{'form.choice'} eq 'minimal') {
$url = "/uploaded/$cdom/$cnum/portfolio/syllabus/loncapa.html";
my $filecontents=&Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$url));
if ($filecontents eq -1) {
$url = &default_minimal_syllabus($cnum,$cdom);
}
}
if ($url =~ m{^/uploaded/\Q$cdom\E/\Q$cnum\E.*/[^/]+$}) {
my $exturl = &home_http_host($cdom,$cnum);
if ($exturl) {
$exturl .= $url;
}
my %storehash;
if ($env{'form.choice'} eq 'minimal') {
$storehash{'minimalsyllabus'} = $url;
} else {
$storehash{'uploadedsyllabus'} = $url;
}
if ($exturl) {
$storehash{'externalsyllabus'} = $exturl;
if ($exturl =~ /\.(html?|txt|js|css)$/) {
$exturl .= '?inhibitmenu=yes';
}
} else {
$storehash{'externalsyllabus'} = '',
}
$putres =
&Apache::lonnet::put('environment',\%storehash,$cdom,$cnum);
if ($putres eq 'ok') {
&Apache::lonnet::make_public_indefinitely($url);
foreach my $key (keys(%storehash)) {
&Apache::lonnet::appenv({'course.'.$env{'request.course.id'}.'.'.$key => $storehash{$key}});
}
if ($env{'form.choice'} eq 'minimal') {
$minimal = $url;
} else {
$uploaded = $url;
}
if ($needlink) {
$output .= &return_to_editor($cdom,$cnum);
$earlyout = 1;
}
($uploaded,$minimal,$external) =
&update_syllabus_env($cdom,$cnum,$courseenv,$env{'form.choice'},$uploaded,
$minimal,$external);
} else {
$error = 1;
$errormsg = $putres;
}
} else {
$error = 1;
}
if ($error) {
$output = '<div class="LC_error">';
if ($env{'form.choice'} eq 'minimal') {
$output = &mt('An error occurred creating the minimal template file [_1]',$errormsg);
} else {
$output = &mt('An error occurred storing the uploaded file [_1]',$errormsg);
}
$output .= '</div>';
}
} elsif ($env{'form.phase'} eq 'upload_embedded') {
# Process file upload - phase two - upload embedded objects
my $uploadphase = 'check_embedded';
my $primaryurl = &HTML::Entities::encode($env{'form.primaryurl'},'<>&"');
my $state = &embedded_form_elems($uploadphase,$primaryurl);
my $url_root = '/uploaded/'.$cdom.'/'.$cnum;
my $actionurl = "/public/$cdom/$cnum/syllabus";
my ($result,$flag,$numpathchgs) =
&Apache::loncommon::upload_embedded('syllabus','portfolio/syllabus',
$cnum,$cdom,'/userfiles',$url_root,undef,undef,undef,$state,
$actionurl);
unless ($numpathchgs) {
my $modres =
&Apache::loncommon::modify_html_refs('syllabus','portfolio/syllabus',
$cnum,$cdom,
'/userfiles',$env{'form.primaryurl'});
$result .= $modres;
}
$output = $result.&return_to_editor($cdom,$cnum);
$earlyout = 1;
} elsif ($env{'form.phase'} eq 'check_embedded') {
# Process file upload - phase three - modify references in HTML file
my $uploadphase = 'modified_orightml';
my $result =
&Apache::loncommon::modify_html_refs('syllabus','portfolio/syllabus',
$cnum,$cdom,
'/userfiles',$env{'form.primaryurl'});
$output = $result.&return_to_editor($cdom,$cnum);
$earlyout = 1;
}
if ($putres eq 'ok') {
if ((($is_ext) && ($is_ext ne $was_ext)) || ($was_ext)) {
my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
unless ($chome eq 'no_host') {
my %crsinfo = &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
if (ref($crsinfo{$cdom.'_'.$cnum}) eq 'HASH') {
if ($external =~ m{^http://}) {
$crsinfo{$cdom.'_'.$cnum}{'extsyllplain'} = 1;
} elsif ($crsinfo{$cdom.'_'.$cnum}{'extsyllplain'}) {
delete($crsinfo{$cdom.'_'.$cnum}{'extsyllplain'});
}
&Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
}
}
}
}
return ($earlyout,$uploaded,$external,$minimal,$output);
}
sub default_minimal_syllabus {
my ($cnum,$cdom) = @_;
my $title;
if ($env{'form.syllabustitle'}) {
$title = $env{'form.syllabustitle'};
$title =~ s{`}{}g;
$title=~s/^\s+//;
$title=~s/\s+$//;
}
if ($title eq '') {
$title = &mt('Syllabus');
}
my $initialtext = &mt('Replace with your own content.');
my $newhtml = <<END;
<html>
<head>
<title>$title</title>
</head>
<body bgcolor="#ffffff">
<h2>$title</h2>
$initialtext
</body>
</html>
END
$env{'form.output'}=$newhtml;
return &Apache::lonnet::finishuserfileupload($cnum,$cdom,'output',
'portfolio/syllabus/loncapa.html');
}
sub update_syllabus_env {
my ($cdom,$cnum,$courseenv,$saved,$uploaded,$minimal,$external) = @_;
return ($uploaded,$minimal,$external) unless(ref($courseenv) eq 'HASH');
my $now = time;
my (@envkeys,%storehash);
if ($saved eq 'template') {
if ($uploaded || $env{'course.'.$env{'request.course.id'}.'.uploadedsyllabus'}) {
push(@envkeys,'uploaded');
}
if ($minimal || $env{'course.'.$env{'request.course.id'}.'.minimalsyllabus'}) {
push(@envkeys,'minimal');
}
if ($external || $env{'course.'.$env{'request.course.id'}.'.externalsyllabus'}) {
push(@envkeys,'external');
}
$storehash{'updatedsyllabus'} = $now;
&Apache::lonnet::appenv({'course.'.$env{'request.course.id'}.'.updatedsyllabus' => $now
});
} elsif ($saved eq 'url') {
my $prefix = &home_http_host($cdom,$cnum);
if ($external =~ m{^\Q$prefix/uploaded/$cdom/$cnum/portfolio/syllabus/\E(.+)$}) {
my $file = $1;
if ($file eq 'loncapa.html') {
if ($uploaded || $env{'course.'.$env{'request.course.id'}.'.uploadedsyllabus'}) {
push(@envkeys,'uploaded');
}
} elsif ($minimal || $env{'course.'.$env{'request.course.id'}.'.minimalsyllabus'}) {
push(@envkeys,'minimal');
}
} else {
if ($uploaded || $env{'course.'.$env{'request.course.id'}.'.uploadedsyllabus'}) {
push(@envkeys,'uploaded');
}
if ($minimal || $env{'course.'.$env{'request.course.id'}.'.minimalsyllabus'}) {
push(@envkeys,'minimal');
}
}
} elsif ($saved eq 'file') {
if ($minimal || $env{'course.'.$env{'request.course.id'}.'.minimalsyllabus'}) {
push(@envkeys,'minimal');
}
} elsif ($saved eq 'minimal') {
if ($uploaded || $env{'course.'.$env{'request.course.id'}.'.uploadedsyllabus'}) {
push(@envkeys,'uploaded');
}
}
if (@envkeys > 0) {
foreach my $item (@envkeys) {
my $key = $item.'syllabus';
if ($courseenv->{$key} ne '') {
&Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.'.$key);
if ($item eq 'minimal') {
&update_access_permissions($cdom,$cnum,'/syllabus/loncapa.html');
} elsif ($item eq 'uploaded') {
if ($courseenv->{$key} =~ m{^\Q/uploaded/$cdom/$cnum/portfolio\E(/syllabus/.+)$}) {
my $filename = $1;
&update_access_permissions($cdom,$cnum,$filename);
}
}
$storehash{$key} = '';
} elsif ($env{'course.'.$env{'request.course.id'}.'.'.$key} ne '') {
&Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.'.$key);
}
if ($item eq 'uploaded') {
undef($uploaded);
}
if ($item eq 'external') {
undef($external);
}
if ($item eq 'minimal') {
undef($minimal);
}
}
}
if (keys(%storehash) > 0) {
&Apache::lonnet::put('environment',\%storehash,$cdom,$cnum);
}
return ($uploaded,$minimal,$external);
}
sub update_access_permissions {
my ($cdom,$cnum,$file_name) = @_;
my $current_permissions = &Apache::lonnet::get_portfile_permissions($cdom,$cnum);
my %access_controls =
&Apache::lonnet::get_access_controls($current_permissions,'',$file_name);
if (keys(%access_controls) > 0) {
my %changes;
foreach my $key (keys(%{$access_controls{$file_name}})) {
$changes{'delete'}{$key} = 1;
}
if (keys(%changes) > 0) {
my ($outcome,$deloutcome,$new_values,$translation) =
&Apache::lonnet::modify_access_controls($file_name,\%changes,
$cdom,$cnum);
}
}
return;
}
sub home_http_host {
my ($cdom,$cnum) = @_;
my $home=&Apache::lonnet::homeserver($cnum,$cdom);
if ($home ne 'no_host') {
my $hostname = &Apache::lonnet::hostname($home);
my $protocol = $Apache::lonnet::protocol{$home};
$protocol = 'http' if ($protocol ne 'https');
return $protocol.'://'.$hostname;
}
return;
}
sub process_upload {
my ($upload_output,$cnum,$cdom,$allfiles,$codebase) = @_;
my ($parseaction,$showupload,$mimetype);
my $dest = 'portfolio/syllabus';
if ($env{'form.parserflag'}) {
$parseaction = 'parse';
}
my $url=&Apache::lonnet::userfileupload('syllabusfile','syllabus',$dest,
$parseaction,$allfiles,
$codebase,undef,undef,undef,undef,
undef,undef,\$mimetype);
if ($url =~ m{^/uploaded/\Q$cdom\E/\Q$cnum\E.*/([^/]+)$}) {
my $stored = $1;
$showupload = '<p>'.&mt('Uploaded [_1]',
'<span class="LC_filename">'.$stored.'</span>').
'</p>';
} else {
my ($filename) = ($env{'form.syllabusfile.filename'} =~ m{([^/]+)$});
$$upload_output = '<div class="LC_error" id="uploadfileresult">'.
&mt('Unable to save file [_1].',
'<span class="LC_filename">'.$filename.'</span>').
'</div>';
return ();
}
my $needlink;
if (($parseaction eq 'parse') && ($mimetype eq 'text/html')) {
$$upload_output = $showupload;
my $total_embedded = scalar(keys(%{$allfiles}));
if ($total_embedded > 0) {
my $uploadphase = 'upload_embedded';
my $primaryurl = &HTML::Entities::encode($url,'<>&"');
my $state = &embedded_form_elems($uploadphase,$primaryurl);
my $actionurl = "/public/$cdom/$cnum/syllabus";
my ($embedded,$num,$numpathchanges,$existing);
($embedded,$num,$numpathchanges,$existing) =
&Apache::loncommon::ask_for_embedded_content($actionurl,$state,
$allfiles,$codebase,
{'error_on_invalid_names' => 1,
'ignore_remote_references' => 1,});
if ($embedded) {
$needlink = 1;
if ($num) {
$$upload_output .=
'<p>'.&mt('This file contains embedded multimedia objects, which need to be uploaded.').'</p>'.$embedded;
} elsif ($numpathchanges) {
$$upload_output .= $embedded;
} else {
$$upload_output .= $embedded;
&Apache::loncommon::modify_html_refs('syllabus','portfolio/syllabus',
$cnum,$cdom,'/userfiles',$url);
}
} else {
$$upload_output .= &mt('Embedded item(s) already present, so no additional upload(s) required').'<br />';
&Apache::loncommon::modify_html_refs('syllabus','portfolio/syllabus',
$cnum,$cdom,'/userfiles',$url);
}
} else {
$$upload_output .= &mt('No embedded items identified').'<br />';
}
$$upload_output = '<div id="uploadfileresult">'.$$upload_output.'</div>';
}
return ($url,$needlink);
}
sub embedded_form_elems {
my ($phase,$primaryurl) = @_;
return <<STATE;
<input type="hidden" name="forceedit" value="1" />
<input type="hidden" name="cmd" value="upload_embedded" />
<input type="hidden" name="phase" value="$phase" />
<input type="hidden" name="primaryurl" value="$primaryurl" />
STATE
}
sub return_to_editor {
my ($cdom,$cnum) = @_;
my $actionurl = "/public/$cdom/$cnum/syllabus";
return '<p><form name="backtoeditor" method="post" action="'.$actionurl.'" />'.
'<input type="hidden" name="forceedit" value="1" />'."\n".
'<a href="javascript:document.backtoeditor.submit();">'.&mt('Return to Editor').
'</a></p>';
}
sub editfile_button {
my ($url,$context,$editable) = @_;
my $edittext=&mt('Edit');
my $deltext=&mt('Delete');
my $output;
if ($editable) {
$output = '
<input type="button" value="'.$edittext.'" onclick="javascript:gotoeditor('."'$url'".');" name="edit_'.$context.'" />
';
}
$output .= '
<input type="button" value="'.$deltext.'" onclick="javascript:dodelete('."'$context'".');" name="del_'.$context.'" />
<input type="hidden" value="" name="deleteuploaded_'.$context.'" id="deleteuploaded_'.$context.'" />
';
return $output;
}
sub editbutton_js {
my %js_lt = &Apache::lonlocal::texthash(
min => 'Are you sure you want to delete the contents of the syllabus template?',
file => 'Are you sure you want to delete the uploaded syllabus file?',
noundo => 'This action cannot be reversed.'
);
&js_escape(\%js_lt);
return <<ENDJS;
<script type="text/javascript">
// <![CDATA[
function gotoeditor(url) {
document.location.href = url+'?editmode=1&forceedit=1';
}
function dodelete(caller,url) {
if (document.getElementById('deleteuploaded_'+caller)) {
document.getElementById('deleteuploaded_'+caller).value=1;
if (caller == 'minimal') {
if (confirm("$js_lt{'min'}"+"\\n"+"$js_lt{'noundo'}")) {
document.syllabus.submit();
}
}
if (caller == 'file') {
if (confirm("$js_lt{'file'}"+"\\n"+"$js_lt{'noundo'}")) {
document.syllabus.submit();
}
}
}
return;
}
// ]]>
</script>
ENDJS
}
sub redirect_to_http {
my ($r) = @_;
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
my $url = 'http://'.$r->hostname().$r->uri().'?usehttp=1';
$r->print(&Apache::loncommon::start_page(undef,undef,
{'redirect' => [0,$url],}).
&Apache::loncommon::end_page());
return;
}
1;
__END__
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