--- loncom/interface/lonchatfetch.pm 2002/09/09 21:01:58 1.4
+++ loncom/interface/lonchatfetch.pm 2004/06/27 17:36:57 1.14
@@ -1,7 +1,7 @@
# The LearningOnline Network
# Chat Fetching
#
-# $Id: lonchatfetch.pm,v 1.4 2002/09/09 21:01:58 www Exp $
+# $Id: lonchatfetch.pm,v 1.14 2004/06/27 17:36:57 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -29,13 +29,27 @@
package Apache::lonchatfetch;
use strict;
-use Apache::Constants qw(:common);
+use Apache::Constants qw(:common :http);
use Apache::lontexconvert;
use Apache::loncommon;
use Apache::lonnet;
sub handler {
my $r = shift;
+
+ if (! &Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
+ ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
+ ) {
+ return HTTP_NOT_ACCEPTABLE;
+ }
+
+ 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;
@@ -47,9 +61,17 @@ sub handler {
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);
+ &Apache::lonnet::reply(
+ "chatretr:$cdom:$cnum:$ENV{'user.domain'}:$ENV{'user.name'}",$chome));
+# Figure out what the last valid entry-id is
+ my ($lastid,$thentime,$idnum);
+ foreach (@entries) {
+ $_=~/^(\w+)/;
+ if ($1 ne 'active_participant') {
+ $lastid=$1;
+ ($thentime,$idnum)=split(/\_/,$lastid);
+ }
+ }
# ----------------------------------------------------------- Can see identity?
my $crs='/'.$ENV{'request.course.id'};
if ($ENV{'request.course.sec'}) {
@@ -66,47 +88,67 @@ sub handler {
$include=1;
$newstuff='';
}
+ my @participants=();
foreach (@entries) {
- if ($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 $sender='';
- unless (($anon) && (!$seeid)) {
- $sender=&Apache::loncommon::plainname($snum,$sdom);
- if ($anon) { $sender.=' [Anon]' };
- } else {
+ my ($id,$msg,$udom)=split(/\:/,&Apache::lonnet::unescape($_));
+ if ($id eq 'active_participant') {
+ chomp($udom);
+ my $participant= &Apache::loncommon::nickname($msg,$udom);
+ unless ($participant=~/\w/) { $participant=$msg.'@'.$udom; }
+ $participants[$#participants+1]=$participant;
+ } elsif ($include) {
+ 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,my $errors)=&Apache::lontexconvert::msgtexconverted($contrib);
+ if ($errors) { $contrib.="[Message not fully displayed due to incorrect embedded TeX]"; }
+ if ($errors && $snum eq $ENV{'user.name'} &&
+ $sdom eq $ENV{'user.domain'} ) {
+ $contrib.="
[TeX error message: $errors]";
+ }
+ $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;
+ }
+ unless ($sender) { $sender=$snum.'@'.$sdom; }
+ if ($anon) { $sender.=' [Anon]' };
+ } elsif (!$anon) {
+ $sender=&Apache::loncommon::nickname($snum,$sdom);
+ unless ($sender) { $sender=$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)/);
+ unless ($sender) { $sender="Anonymous"; }
+ }
+ $sender=~s/\'/\&\#39\;/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; }
- }
+ $sender.' ('.$mhour.':'.$mmin.':'.$msec.'): '.
+ $contrib."
";
+ $bottomid=$id;
+ } else {
+ $_=~/^(\w+)/;
+ if ($1 eq $ENV{'form.lastid'}) { $include=1; }
+ }
}
+ my $participant_output=join('
',sort @participants);
$r->print(<
@@ -118,6 +160,7 @@ sub handler {
parent.chatout.document.writeln('$newstuff');
parent.chatout.scroll(0,10000000);
+$participant_output
ENDDOCUMENT