# The LearningOnline Network
# Announce
#
# $Id: lonannounce.pm,v 1.32 2004/09/02 13:15:07 www 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::lonannounce;
use strict;
use Apache::Constants qw(:common);
use Apache::loncommon;
use Apache::lonhtmlcommon();
use Apache::lonlocal;
use HTML::Entities();
my %todayhash;
my %showedcheck;
sub editfield {
my ($r,$start,$end,$text)=@_;
# Deal with date forms
my $startdateform = &Apache::lonhtmlcommon::date_setter('anno',
'startdate',
$start);
my $enddateform = &Apache::lonhtmlcommon::date_setter('anno',
'enddate',
$end);
my $help=&Apache::loncommon::help_open_menu('','Calendar Add Announcement','Calendar_Add_Announcement','',274,'Communication Tools');
$r->print(<<ENDFORM);
$help
<form name="anno" method="post">
<input type="hidden" value='' name="action" >
<table><tr><td>Starting date:</td><td>$startdateform</td></tr>
<tr><td>Ending date:</td><td>$enddateform</td></tr></table>
<textarea name="msg" rows="4" cols="60">$text</textarea>
<input type="button" onClick="trysubmit()" value="Post Announcement"><hr />
ENDFORM
}
sub readcalendar {
my $courseid=shift;
my $coursenum=$ENV{'course.'.$courseid.'.num'};
my $coursedom=$ENV{'course.'.$courseid.'.domain'};
my %thiscal=&Apache::lonnet::dump('calendar',$coursedom,$coursenum);
my %returnhash=();
foreach (keys %thiscal) {
unless (($_=~/^error\:/) || ($thiscal{$_}=~/^error\:/)) {
$returnhash{$courseid.'@'.$_}=$thiscal{$_};
}
}
if ($courseid eq $ENV{'request.course.id'}) {
my %resourcedata=
&Apache::lonnet::dump('resourcedata',$coursedom,$coursenum);
foreach my $thiskey (sort keys %resourcedata) {
if ($resourcedata{$thiskey.'.type'}=~/^date/) {
my ($course,$middle,$part,$name)=
($thiskey=~/^(\w+)\.(?:(.+)\.)*([\w\s]+)\.(\w+)$/);
my $section=&mt('All Students');
if ($middle=~/^\[(.*)\]\./) {
my $sec=$1;
# if we have a section don't show ones that aren't ours
if ($ENV{'request.course.sec'} &&
$ENV{'request.course.sec'} ne $sec) { next; }
# if a student without a section don't show any section ones
if (!$ENV{'request.role.adv'} &&
!$ENV{'request.course.sec'}) { next; }
$section=&mt('Group/Section').': '.$1;
$middle=~s/^\[(.*)\]\.//;
}
$middle=~s/\.$//;
my $realm=&mt('All Resources');
if ($middle=~/^(.+)\_\_\_\(all\)$/) {
$realm=&mt('Folder/Map').': '.&Apache::lonnet::gettitle($1);
} elsif ($middle) {
$realm=&mt('Resource').': '.&Apache::lonnet::gettitle($middle);
}
my $datetype='';
if ($name eq 'duedate') {
$datetype=&mt('Due');
# see if accidentally answerdate is before duedate
my $answerkey=$thiskey;
$answerkey=~s/duedate$/answerdate/;
if ($resourcedata{$thiskey}>$resourcedata{$answerkey}) {
$datetype='Due and Answer Available';
}
}
if ($name eq 'opendate') { $datetype=&mt('Opening'); }
if ($name eq 'answerdate') {
# see if accidentally answerdate is before duedate
my $duekey=$thiskey;
$duekey=~s/answerdate$/duedate/;
if ($resourcedata{$duekey}>$resourcedata{$thiskey}) {
# forget it
next;
}
$datetype=&mt('Answer Available');
}
$returnhash{$courseid.'@'.$resourcedata{$thiskey}.'_'.
$resourcedata{$thiskey}}=
'INTERNAL:'.$datetype.': '.$realm.' ('.$section.')';
}
}
}
return %returnhash;
}
sub emptycell {
return '<td bgcolor="#AAAAAA"> </td>';
}
sub normalcell {
my ($day,$month,$year,$text)=@_;
my $output='';
foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
if ($_) {
my $internalflag=0;
my ($courseid,$start,$end,@msg)=split(/\@/,$_);
my $msg=join('@',@msg);
if ($msg=~/INTERNAL\:/) {
$msg=~s/INTERNAL\://gs;
$internalflag=1;
}
my $fullmsg=&mt('Calendar Announcement for ').$ENV{'course.'.$courseid.'.description'}.
'\n'.&Apache::lonlocal::locallocaltime($start);
if ($start!=$end) {
$fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
}
$fullmsg.=':\n'.$msg;
if ($courseid eq $ENV{'request.course.id'}) {
if ((&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))
&& (!$showedcheck{$start.'_'.$end})
&& ($ENV{'form.pickdate'} ne 'yes')
&& (!$internalflag)) {
$output.='<input type="checkbox" name="remove_'.$start.'_'.
$end.'">';
$showedcheck{$start.'_'.$end}=1;
}
}
$fullmsg=~s/[\n\r]/\\n/gs;
$fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
$fullmsg=~s/&/\\&/g;
$output.='<a href="javascript:alert('."'$fullmsg'".')">'.
substr($msg,0,20).'...</a><br />';
}
}
return '<td valign="top"'.
((($day eq $todayhash{'day'}) &&
($month eq $todayhash{'month'}) &&
($year eq $todayhash{'year'}))?' bgcolor="#FFFF00"':'').
'>'.&tfont('<b>'.&picklink($day,$day,$month,$year).'</b><br />'.$output).'</td>';
}
sub plaincell {
my ($text)=@_;
my $output='';
foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
if ($_) {
my ($courseid,$start,$end,@msg)=split(/\@/,$_);
my $msg=join('@',@msg);
my $fullmsg=&mt('Calendar Announcement for ').$ENV{'course.'.$courseid.'.description'}.
'\n'.&Apache::lonlocal::locallocaltime($start);
if ($start!=$end) {
$fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
}
$msg=~s/INTERNAL\://gs;
$fullmsg.=':\n'.$msg;
$fullmsg=~s/[\n\r]/\\n/gs;
$fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
$fullmsg=~s/&/\\&/g;
$output.='<a href="javascript:alert('."'$fullmsg'".')">'.
substr($msg,0,40).'...</a><br />';
}
}
return $output;
}
sub listcell {
my ($text)=@_;
my $output='';
foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
if ($_) {
my ($courseid,$start,$end,@msg)=split(/\@/,$_);
my $msg=join('@',@msg);
$msg=~s/INTERNAL\://gs;
my $fullmsg=&Apache::lonlocal::locallocaltime($start);
if ($start!=$end) {
$fullmsg.=&mt(' to ').
&Apache::lonlocal::locallocaltime($end);
}
$fullmsg.=':<br /><b>'.
$msg.'</b>';
$output.='<li>'.$fullmsg.'</li>';
}
}
return $output;
}
sub nextday {
my %th=@_;
$th{'day'}++;
return (&Apache::loncommon::maketime(%th),$th{'month'});
}
sub showday {
my ($tk,$mode,%allcal)=@_;
my %th=&Apache::loncommon::timehash($tk);
my ($nextday,$nextmonth)=&nextday(%th);
my $outp='';
if ($mode) {
my $oneday=24*3600;
$tk-=$oneday;
$nextday+=$oneday;
}
foreach (keys %allcal) {
my ($course,$startdate,$enddate)=($_=~/^(\w+)\@(\d+)\_(\d+)$/);
if (($startdate<$nextday) && ($enddate>$tk)) {
$outp.='___&&&___'.$course.'@'.$startdate.'@'.$enddate.'@'.
$allcal{$_};
}
}
unless ($mode) {
return ($nextday,$nextmonth,&normalcell(
$th{'day'},$th{'month'},$th{'year'},$outp));
} elsif ($outp) {
if ($mode==1) {
return '<br />'.&plaincell($outp);
} else {
return '<ul>'.&listcell($outp).'</ul>';
}
} else {
return '';
}
}
sub tfont {
my $text=shift;
if ($ENV{'form.pickdate'} eq 'yes') {
return '<font size="1">'.$text.'</font>';
} else {
return $text;
}
}
sub picklink {
my ($text,$day,$month,$year)=@_;
if ($ENV{'form.pickdate'} eq 'yes') {
return '<a href="javascript:dialin('.$day.','.$month.','.$year.')">'.
$text.'</a>';
} else {
return $text;
}
}
sub dialscript {
return (<<ENDDIA);
<script language="Javascript">
function dialin(day,month,year) {
opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_year.value=year;
var slct=opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_month;
var i;
for (i=0;i<slct.length;i++) {
if (slct.options[i].value==month) { slct.selectedIndex=i; }
}
opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_day.value=day;
opener.$ENV{'form.element'}\_checkday();
self.close();
}
</script>
ENDDIA
}
sub handler {
my $r = shift;
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK if $r->header_only;
# ---------------------------------------------------------- Get time right now
my $today=time;
%todayhash=&Apache::loncommon::timehash($today);
# ----------------------------------------------------------------- Check marks
%showedcheck=();
undef %showedcheck;
# ---------------------------------------------------------- Get month and year
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['month','year','pickdate','formname','element']);
# --------------------------------------------------- Decide what month to show
my $year=$todayhash{'year'};
if ($ENV{'form.year'}) { $year=$ENV{'form.year'}; }
my $month=$todayhash{'month'};
if ($ENV{'form.month'}) { $month=$ENV{'form.month'}; }
# ---------------------------------------------- See if we are in pickdate mode
my $pickdatemode=($ENV{'form.pickdate'} eq 'yes');
my $pickinfo='&pickdate=yes&formname='.$ENV{'form.formname'}.
'&element='.$ENV{'form.element'};
# --------------------------------------------- Find out first day of the month
my %firstday=&Apache::loncommon::timehash(
&Apache::loncommon::maketime( 'day' => 1, 'month'=> $month,
'year' => $year, 'hours' => 0,
'minutes' => 0, 'seconds' => 0,
'dlsav' => -1 ));
my $weekday=$firstday{'weekday'};
# ------------------------------------------------------------ Print the screen
$r->print(<<ENDDOCUMENT);
<html>
<head>
<title>The LearningOnline Network with CAPA</title>
<script>
function trysubmit() {
document.anno.action.value="new";
document.anno.submit();
}
function removesub() {
document.anno.action.value="del";
document.anno.submit();
}
</script>
</head>
ENDDOCUMENT
if ($pickdatemode) {
# no big header in pickdate mode
$r->print(&Apache::loncommon::bodytag("Pick a Date",'','',1).
&dialscript().
'<font size="1">');
} else {
$r->print(&Apache::loncommon::bodytag("Announcements and Calendar"));
}
# does this user have privileges to post, etc?
my $allowed=0;
if ($ENV{'request.course.id'}) {
$allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
}
# does this user have privileges to post to servers?
my $serverpost=0;
if ($ENV{'request.role.domain'}) {
$serverpost=&Apache::lonnet::allowed('psa',
$ENV{'request.role.domain'});
} else {
$serverpost=&Apache::lonnet::allowed('psa','/');
}
# -------------------------------- BUT: do no fancy stuff when in pickdate mode
if ($pickdatemode) {
$serverpost=0;
$allowed=0;
}
# ------------------------------------------------------------ Process commands
if ($serverpost) {
if ($ENV{'form.serveraction'}) {
foreach (keys %ENV) {
if ($_=~/^form\.postto\_(\w+)/) {
$r->print(
'<br />Posting '.$1.': '.&Apache::lonnet::postannounce
($1,$ENV{'form.serverannnounce'}));
}
}
}
$r->print(<<SERVERANNOUNCE);
<form name="serveranno" method="post">
<h3>Post Server Announcements</h3>
Post announcements to the system login and roles screen<br />
<i>(leave blank to delete announcement)</i><br />
<textarea name="serverannnounce" cols="60" rows="5"></textarea><br />
Check machines:<br />
SERVERANNOUNCE
# list servers
foreach (sort keys %Apache::lonnet::hostname) {
if (&Apache::lonnet::allowed('psa',$Apache::lonnet::hostdom{$_})) {
$r->print ('<br /><input type="checkbox" name="postto_'.$_.'" /> '.
$_.' <tt>'.$Apache::lonnet::hostname{$_}.'</tt> '.
'<a href="http://'.$Apache::lonnet::hostname{$_}.
'/announcement.txt" target="annowin">current</a>');
}
}
$r->print(
'<br /><input type="submit" name="serveraction" value="Post"></form><hr />');
}
if ($allowed) {
my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
# ----------------------------------------------------- Store new submitted one
if ($ENV{'form.action'} eq 'new') {
my $startdate =
&Apache::lonhtmlcommon::get_date_from_form('startdate');
my $enddate =
&Apache::lonhtmlcommon::get_date_from_form('enddate');
unless ($startdate=~/^\d+$/) { $startdate=time; }
unless ($enddate=~/^\d+$/) { $enddate=$startdate+1; }
if ($startdate>$enddate) {
my $buffer=$startdate;
$startdate=$enddate;
$enddate=$buffer;
}
&Apache::lonnet::put('calendar',{
$startdate.'_'.$enddate =>
$ENV{'form.msg'} },$coursedom,$coursenum);
}
# ---------------------------------------------------------------- Remove items
if ($ENV{'form.action'} eq 'del') {
my @delwhich=();
foreach (keys %ENV) {
if ($_=~/^form\.remove\_(.+)$/) {
push(@delwhich,$1);
}
}
&Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
}
# -------------------------------------------------------- Form to post new one
my %tomorrowhash=%todayhash;
$tomorrowhash{'day'}++;
my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
&editfield($r,$today,$tomorrow,'');
}
# ----------------------------------------------------- Summarize all calendars
my %allcal=();
foreach (&Apache::loncommon::findallcourses()) {
%allcal=(%allcal,&readcalendar($_));
}
# ------------------------------- Initialize table and forward backward buttons
my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
if ($pm<1) { ($pm,$py)=(12,$year-1); }
if ($fm>12){ ($fm,$fy)=(1,$year+1); }
$r->print('<h1>'.('',&mt('January'),&mt('February'),&mt('March'),
&mt('April'),&mt('May'),
&mt('June'),&mt('July'),&mt('August'),
&mt('September'),&mt('October'),
&mt('November'),&mt('December'))[$month].' '.
$year.'</h1>');
# Reached the end of times, give up
if (($year<1970) || ($year>2037)) {
$r->print('<h3>No calendar available for this date.</h3>'.
'<a href="/adm/announcements?month='.$todayhash{'month'}.
'&year='.$todayhash{'year'}.'">Current Month</a></body></html>');
return OK;
}
$r->print(
'<a href="/adm/announcements?month='.$pm.'&year='.$py.
($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
'<a href="/adm/announcements?month='.$fm.'&year='.$fy.
($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
' <a href="/adm/announcements?month='.$todayhash{'month'}.
'&year='.$todayhash{'year'}.
($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a><p>'.
'<table border="2" cols="7" rows="5"><tr><th>'.
&tfont(&mt('Sun'))
.'</th><th>'.
&tfont(&mt('Mon'))
.'</th><th>'.
&tfont(&mt('Tue'))
.'</th><th>'.
&tfont(&mt('Wed'))
.'</th><th>'.
&tfont(&mt('Thu'))
.'</th><th>'.
&tfont(&mt('Fri'))
.'</th><th>'.
&tfont(&mt('Sat'))
.'</th></tr>');
my $tk=&Apache::loncommon::maketime(%firstday);
my $outp;
my $nm;
# ---------------------------------------------------------------- Actual table
$r->print('<tr>');
for (my $i=0;$i<$weekday;$i++) { $r->print(&emptycell); }
for (my $i=$weekday;$i<=6;$i++) {
($tk,$nm,$outp)=&showday($tk,0,%allcal);
$r->print($outp);
}
$r->print('</tr>');
for (my $k=0;$k<=4;$k++) {
$r->print('<tr>');
for (my $i=0;$i<=6;$i++) {
($tk,$nm,$outp)=&showday($tk,0,%allcal);
if ($month!=$nm) { $outp=&emptycell; }
$r->print($outp);
}
$r->print('</tr>');
}
# ------------------------------------------------------------------- End table
$r->print('</table>');
# ----------------------------------------------------------------- Check marks
%showedcheck=();
undef %showedcheck;
# --------------------------------------------------------------- Remove button
if ($allowed) { $r->print('<input type="button" onClick="removesub()" value="Remove Checked Entries">'.
&Apache::loncommon::help_open_topic('Calendar_Remove_Announcement').'</form>'); }
$r->print('<p>'.
'<a href="/adm/announcements?month='.$pm.'&year='.$py.
($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
'<a href="/adm/announcements?month='.$fm.'&year='.$fy.
($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
' <a href="/adm/announcements?month='.$todayhash{'month'}.
'&year='.$todayhash{'year'}.
($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a></p>'.
($pickdatemode?'</font>':'').
'</body></html>');
return OK;
}
1;
__END__
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