# The LearningOnline Network
# Chat Fetching
#
# $Id: lonchatfetch.pm,v 1.6 2002/09/16 20:15:10 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::lonchatfetch;
use strict;
use Apache::Constants qw(:common);
use Apache::lontexconvert;
use Apache::loncommon;
use Apache::lonnet;
sub handler {
my $r = shift;
my $loaderror=&Apache::lonnet::overloaderror($r);
if ($loaderror) { return $loaderror; }
$loaderror=
&Apache::lonnet::overloaderror($r,
$ENV{'course.'.$ENV{'request.course.id'}.'.home'});
if ($loaderror) { return $loaderror; }
$r->content_type('text/html');
$r->send_http_header;
return OK if $r->header_only;
# ------------------------------------------------------------ retrieve entries
my $cnum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
my $cdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
my $chome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'};
my @entries=split(/\:/,
&Apache::lonnet::reply("chatretr:$cdom:$cnum",$chome));
my ($lastid)=($entries[$#entries]=~/^(\w+)/);
my ($thentime,$idnum)=split(/\_/,$lastid);
# ----------------------------------------------------------- Can see identity?
my $crs='/'.$ENV{'request.course.id'};
if ($ENV{'request.course.sec'}) {
$crs.='_'.$ENV{'request.course.sec'};
}
$crs=~s/\_/\//g;
my $seeid=&Apache::lonnet::allowed('rin',$crs);
# -------------------------------------------------------- see which ones apply
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['lastid']);
my $include=0;
my $newstuff='';
my $bottomid='';
unless ($ENV{'form.lastid'}) {
$include=1;
$newstuff='';
}
foreach (@entries) {
if ($include) {
my ($id,$msg)=split(/\:/,&Apache::lonnet::unescape($_));
chomp($msg);
my ($msgtime,$msgnum)=split(/\_/,$id);
my ($sdom,$snum,$anon,$contrib)=split(/\:/,
&Apache::lonnet::unescape($msg));
$contrib=&Apache::lonnet::unescape($contrib);
$contrib=~s/\n/\
/g;
$contrib=&Apache::lontexconvert::msgtexconverted($contrib);
$contrib=~s/\n/ /g;
$contrib=~s/\'/\&\#39\;/g;
my $sender='';
if ($seeid) {
$sender=&Apache::loncommon::plainname($snum,$sdom);
my $nick=&Apache::loncommon::nickname($snum,$sdom);
if (($nick) && ($nick ne $sender)) {
$sender.=' '.$nick;
}
if ($anon) { $sender.=' [Anon]' };
} elsif (!$anon) {
$sender=&Apache::loncommon::nickname($snum,$sdom);
} else {
$sender=&Apache::loncommon::screenname($snum,$sdom);
unless ($sender) { $sender="Anonymous"; }
}
$sender=~s/\'/\"/g;
my $color=$sender;
$color=~tr/a-j/0-9/;
$color=~tr/A-J/0-9/;
$color=~tr/k-t/0-9/;
$color=~tr/K-T/0-9/;
$color=~tr/u-z/0-5/;
$color=~tr/U-Z/0-5/;
$color=~s/\D//g;
$color=substr($color,0,6);
my $timestamp=localtime($msgtime);
my ($mhour,$mmin,$msec)=($timestamp=~/(\d\d)\:(\d\d)\:(\d\d)/);
$newstuff.=''.
$sender.' ('.$mhour.':'.$mmin.':'.$msec.'): '.
$contrib."
";
$bottomid=$id;
} else {
$_=~/^(\w+)/;
if ($1 eq $ENV{'form.lastid'}) { $include=1; }
}
}
$r->print(<
The LearningOnline Network with CAPA
ENDDOCUMENT
return OK;
}
1;
__END__