File:
[LON-CAPA] /
loncom /
interface /
lonchatfetch.pm
Revision
1.14:
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Sun Jun 27 17:36:57 2004 UTC (20 years ago) by
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CVS tags:
version_1_3_X,
version_1_3_3,
version_1_3_2,
version_1_3_1,
version_1_3_0,
version_1_2_X,
version_1_2_99_1,
version_1_2_99_0,
version_1_2_1,
version_1_2_0,
version_1_1_99_5,
version_1_1_99_4,
version_1_1_99_3,
version_1_1_99_2,
version_1_1_99_1,
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Bug #3086: show username in CHAT for nameless folks
1: # The LearningOnline Network
2: # Chat Fetching
3: #
4: # $Id: lonchatfetch.pm,v 1.14 2004/06/27 17:36:57 www Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::lonchatfetch;
30:
31: use strict;
32: use Apache::Constants qw(:common :http);
33: use Apache::lontexconvert;
34: use Apache::loncommon;
35: use Apache::lonnet;
36:
37: sub handler {
38: my $r = shift;
39:
40: if (! &Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
41: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
42: ) {
43: return HTTP_NOT_ACCEPTABLE;
44: }
45:
46: my $loaderror=&Apache::lonnet::overloaderror($r);
47: if ($loaderror) { return $loaderror; }
48: $loaderror=
49: &Apache::lonnet::overloaderror($r,
50: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
51: if ($loaderror) { return $loaderror; }
52:
53: $r->content_type('text/html');
54: $r->send_http_header;
55: return OK if $r->header_only;
56:
57: # ------------------------------------------------------------ retrieve entries
58:
59: my $cnum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
60: my $cdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
61: my $chome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'};
62:
63: my @entries=split(/\:/,
64: &Apache::lonnet::reply(
65: "chatretr:$cdom:$cnum:$ENV{'user.domain'}:$ENV{'user.name'}",$chome));
66: # Figure out what the last valid entry-id is
67: my ($lastid,$thentime,$idnum);
68: foreach (@entries) {
69: $_=~/^(\w+)/;
70: if ($1 ne 'active_participant') {
71: $lastid=$1;
72: ($thentime,$idnum)=split(/\_/,$lastid);
73: }
74: }
75: # ----------------------------------------------------------- Can see identity?
76: my $crs='/'.$ENV{'request.course.id'};
77: if ($ENV{'request.course.sec'}) {
78: $crs.='_'.$ENV{'request.course.sec'};
79: }
80: $crs=~s/\_/\//g;
81: my $seeid=&Apache::lonnet::allowed('rin',$crs);
82: # -------------------------------------------------------- see which ones apply
83: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['lastid']);
84: my $include=0;
85: my $newstuff='';
86: my $bottomid='';
87: unless ($ENV{'form.lastid'}) {
88: $include=1;
89: $newstuff='<html><body bgcolor="#FFFFFF">';
90: }
91: my @participants=();
92: foreach (@entries) {
93: my ($id,$msg,$udom)=split(/\:/,&Apache::lonnet::unescape($_));
94: if ($id eq 'active_participant') {
95: chomp($udom);
96: my $participant= &Apache::loncommon::nickname($msg,$udom);
97: unless ($participant=~/\w/) { $participant=$msg.'@'.$udom; }
98: $participants[$#participants+1]=$participant;
99: } elsif ($include) {
100: chomp($msg);
101: my ($msgtime,$msgnum)=split(/\_/,$id);
102: my ($sdom,$snum,$anon,$contrib)=split(/\:/,
103: &Apache::lonnet::unescape($msg));
104: $contrib=&Apache::lonnet::unescape($contrib);
105: $contrib=~s/\n/\<br \/\>/g;
106: ($contrib,my $errors)=&Apache::lontexconvert::msgtexconverted($contrib);
107: if ($errors) { $contrib.="[Message not fully displayed due to incorrect embedded TeX]"; }
108: if ($errors && $snum eq $ENV{'user.name'} &&
109: $sdom eq $ENV{'user.domain'} ) {
110: $contrib.="<br />[TeX error message: $errors]";
111: }
112: $contrib=~s/\n/ /g;
113: $contrib=~s/\'/\&\#39\;/g;
114: my $sender='';
115: if ($seeid) {
116: $sender=&Apache::loncommon::plainname($snum,$sdom);
117: my $nick=&Apache::loncommon::nickname($snum,$sdom);
118: if (($nick) && ($nick ne $sender)) {
119: $sender.=' '.$nick;
120: }
121: unless ($sender) { $sender=$snum.'@'.$sdom; }
122: if ($anon) { $sender.=' [Anon]' };
123: } elsif (!$anon) {
124: $sender=&Apache::loncommon::nickname($snum,$sdom);
125: unless ($sender) { $sender=$snum.'@'.$sdom; }
126: } else {
127: $sender=&Apache::loncommon::screenname($snum,$sdom);
128: unless ($sender) { $sender="Anonymous"; }
129: }
130: $sender=~s/\'/\&\#39\;/g;
131: my $color=$sender;
132: $color=~tr/a-j/0-9/;
133: $color=~tr/A-J/0-9/;
134: $color=~tr/k-t/0-9/;
135: $color=~tr/K-T/0-9/;
136: $color=~tr/u-z/0-5/;
137: $color=~tr/U-Z/0-5/;
138: $color=~s/\D//g;
139: $color=substr($color,0,6);
140: my $timestamp=localtime($msgtime);
141: my ($mhour,$mmin,$msec)=($timestamp=~/(\d\d)\:(\d\d)\:(\d\d)/);
142: $newstuff.='<font color="#'.$color.'"><a name="'.$id.'"><b>'.
143: $sender.'</b> ('.$mhour.':'.$mmin.':'.$msec.'): '.
144: $contrib."</font><br>";
145: $bottomid=$id;
146: } else {
147: $_=~/^(\w+)/;
148: if ($1 eq $ENV{'form.lastid'}) { $include=1; }
149: }
150: }
151: my $participant_output=join('<br />',sort @participants);
152: $r->print(<<ENDDOCUMENT);
153: <html>
154: <head>
155: <title>The LearningOnline Network with CAPA</title>
156: <meta HTTP-EQUIV="Refresh" CONTENT="5; url=/adm/chatfetch?lastid=$lastid">
157: </head>
158: <body bgcolor="#FFFFFF">
159: <script>
160: parent.chatout.document.writeln('$newstuff');
161: parent.chatout.scroll(0,10000000);
162: </script>
163: $participant_output
164: </body>
165: </html>
166: ENDDOCUMENT
167: return OK;
168: }
169:
170: 1;
171: __END__
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