# The LearningOnline Network with CAPA
# Routines for messaging
#
# $Id: lonmsg.pm,v 1.52 2003/03/31 16:34:08 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/
#
#
# (Routines to control the menu
#
# (TeX Conversion Module
#
# 05/29/00,05/30 Gerd Kortemeyer)
#
# 10/05 Gerd Kortemeyer)
#
# 10/19,10/20,10/30,
# 02/06/01 Gerd Kortemeyer
# 07/27 Guy Albertelli
# 07/27,07/28,07/30,08/03,08/06,08/08,08/09,08/10,8/13,8/15,
# 10/1,11/5 Gerd Kortemeyer
# YEAR=2002
# 1/1,3/18 Gerd Kortemeyer
#
package Apache::lonmsg;
use strict;
use Apache::lonnet();
use vars qw($msgcount);
use HTML::TokeParser();
use Apache::Constants qw(:common);
use Apache::loncommon();
use Apache::lontexconvert();
use HTML::Entities();
# ===================================================================== Package
sub packagemsg {
my ($subject,$message,$citation,$baseurl,$attachmenturl)=@_;
$message =&HTML::Entities::encode($message);
$citation=&HTML::Entities::encode($citation);
$subject =&HTML::Entities::encode($subject);
#remove machine specification
$baseurl =~ s|^http://[^/]+/|/|;
$baseurl =&HTML::Entities::encode($baseurl);
#remove machine specification
$attachmenturl =~ s|^http://[^/]+/|/|;
$attachmenturl =&HTML::Entities::encode($attachmenturl);
my $now=time;
$msgcount++;
my $partsubj=$subject;
$partsubj=&Apache::lonnet::escape($partsubj);
my $msgid=&Apache::lonnet::escape(
$now.':'.$partsubj.':'.$ENV{'user.name'}.':'.
$ENV{'user.domain'}.':'.$msgcount.':'.$$);
my $result='
Attachment: '.$fname.'.'.$ft.''; } else { $content{'message'}.='
Attachment: '.$fname.'.'.$ft.'';
}
}
return %content;
}
# ======================================================= Get info out of msgid
sub unpackmsgid {
my $msgid=&Apache::lonnet::unescape(shift);
my ($sendtime,$shortsubj,$fromname,$fromdomain)=split(/\:/,
&Apache::lonnet::unescape($msgid));
my %status=&Apache::lonnet::get('email_status',[$msgid]);
if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
unless ($status{$msgid}) { $status{$msgid}='new'; }
return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid});
}
# ============================================================= Check for email
sub newmail {
if ((time-$ENV{'user.mailcheck.time'})>300) {
my %what=&Apache::lonnet::get('email_status',['recnewemail']);
&Apache::lonnet::appenv('user.mailcheck.time'=>time);
if ($what{'recnewemail'}>0) { return 1; }
}
return 0;
}
# =============================== Automated message to the author of a resource
sub author_res_msg {
my ($filename,$message)=@_;
unless ($message) { return 'empty'; }
$filename=&Apache::lonnet::declutter($filename);
my ($domain,$author,@dummy)=split(/\//,$filename);
my $homeserver=&Apache::lonnet::homeserver($author,$domain);
if ($homeserver ne 'no_host') {
my $id=unpack("%32C*",$message);
my $msgid;
($msgid,$message)=&packagemsg($filename,$message);
return &Apache::lonnet::reply('put:'.$domain.':'.$author.
':nohist_res_msgs:'.
&Apache::lonnet::escape($filename.'_'.$id).'='.
&Apache::lonnet::escape($message),$homeserver);
}
return 'no_host';
}
# ================================================== Critical message to a user
sub user_crit_msg_raw {
my ($user,$domain,$subject,$message,$sendback)=@_;
# Check if allowed missing
my $status='';
my $msgid='undefined';
unless (($message)&&($user)&&($domain)) { $status='empty'; };
my $homeserver=&Apache::lonnet::homeserver($user,$domain);
if ($homeserver ne 'no_host') {
($msgid,$message)=&packagemsg($subject,$message);
if ($sendback) { $message.='
ENDDISHEADER
foreach (sort keys %courselist) {
my ($end,$start)=split(/\:/,$courselist{$_});
my $active=1;
if (($end) && ($now>$end)) { $active=0; }
if ($active) {
my ($sname,$sdom)=split(/\:/,$_);
my %reply=&Apache::lonnet::get('environment',
['firstname','middlename','lastname','generation'],
$sdom,$sname);
my $section=&Apache::lonnet::usection
($sdom,$sname,$ENV{'request.course.id'});
$r->print(
' ';
}
$r->print(<<"ENDREPLY");
'.
$reply{'firstname'}.' '.
$reply{'middlename'}.' '.
$reply{'lastname'}.' '.
$reply{'generation'}.
' ('.$_.') '.$section);
}
}
}
# ==================================================== Display Critical Message
sub discrit {
my $r=shift;
my $header = 'Critical Messages
'.
'');
}
# =============================================================== Compose reply
sub comprep {
my ($r,$msgid)=@_;
my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
my %content=&unpackagemsg($message{$msgid},1);
my $quotemsg='> '.$content{'message'};
$quotemsg=~s/\r/\n/g;
$quotemsg=~s/\f/\n/g;
$quotemsg=~s/\n+/\n\> /g;
my $subject='Re: '.$content{'subject'};
my $dispcrit='';
if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
$dispcrit=
' Send as critical message ' . $crithelp .
'
'.
' Send as critical message ' .
' and return receipt' . $crithelp . 'Display All Messages