File:
[LON-CAPA] /
loncom /
interface /
lonchatfetch.pm
Revision
1.18:
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Mon Jun 6 02:29:46 2005 UTC (19 years, 3 months ago) by
albertel
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MAIN
CVS tags:
version_2_1_X,
version_2_1_3,
version_2_1_2,
version_2_1_1,
version_2_1_0,
version_2_0_X,
version_2_0_99_1,
version_2_0_2,
version_2_0_1,
version_2_0_0,
version_1_99_3,
version_1_99_2,
version_1_99_1,
version_1_99_0,
HEAD
- more bug#2667 fix up all of the other paces doing the blind \n to <br /> tranlation
1: # The LearningOnline Network
2: # Chat Fetching
3: #
4: # $Id: lonchatfetch.pm,v 1.18 2005/06/06 02:29:46 albertel 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 $loaderror; }
52:
53: &Apache::loncommon::content_type($r,'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: my $html=&Apache::lonxml::xmlbegin();
90: $newstuff=$html.'<head></head><body bgcolor="#FFFFFF">';
91: }
92: my @participants=();
93: foreach (@entries) {
94: my ($id,$msg,$udom)=split(/\:/,&Apache::lonnet::unescape($_));
95: if ($id eq 'active_participant') {
96: chomp($udom);
97: my $participant= &Apache::loncommon::nickname($msg,$udom);
98: unless ($participant=~/\w/) { $participant=$msg.'@'.$udom; }
99: $participants[$#participants+1]=$participant;
100: } elsif ($include) {
101: chomp($msg);
102: my ($msgtime,$msgnum)=split(/\_/,$id);
103: my ($sdom,$snum,$anon,$contrib)=split(/\:/,
104: &Apache::lonnet::unescape($msg));
105: $contrib=&Apache::lonnet::unescape($contrib);
106: &Apache::lonfeedback::newline_to_br(\$contrib);
107: ($contrib,my $errors)=&Apache::lontexconvert::msgtexconverted($contrib);
108: if ($errors) { $contrib.="[Message not fully displayed due to incorrect embedded TeX]"; }
109: if ($errors && $snum eq $env{'user.name'} &&
110: $sdom eq $env{'user.domain'} ) {
111: $contrib.="<br />[TeX error message: $errors]";
112: }
113: $contrib=~s/\n/ /g;
114: $contrib=~s/\'/\&\#39\;/g;
115: my $sender='';
116: if ($seeid) {
117: $sender=&Apache::loncommon::plainname($snum,$sdom);
118: my $nick=&Apache::loncommon::nickname($snum,$sdom);
119: if (($nick) && ($nick ne $sender)) {
120: $sender.=' '.$nick;
121: }
122: unless ($sender) { $sender=$snum.'@'.$sdom; }
123: if ($anon) { $sender.=' [Anon]' };
124: } elsif (!$anon) {
125: $sender=&Apache::loncommon::nickname($snum,$sdom);
126: unless ($sender) { $sender=$snum.'@'.$sdom; }
127: } else {
128: $sender=&Apache::loncommon::screenname($snum,$sdom);
129: unless ($sender) { $sender="Anonymous"; }
130: }
131: $sender=~s/\'/\&\#39\;/g;
132: my $color=$sender;
133: $color=~tr/a-j/0-9/;
134: $color=~tr/A-J/0-9/;
135: $color=~tr/k-t/0-9/;
136: $color=~tr/K-T/0-9/;
137: $color=~tr/u-z/0-5/;
138: $color=~tr/U-Z/0-5/;
139: $color=~s/\D//g;
140: $color=substr($color,0,6);
141: my $timestamp=localtime($msgtime);
142: my ($mhour,$mmin,$msec)=($timestamp=~/(\d\d)\:(\d\d)\:(\d\d)/);
143: $newstuff.='<font color="#'.$color.'"><a name="'.$id.'"><b>'.
144: $sender.'</b> ('.$mhour.':'.$mmin.':'.$msec.'): '.
145: $contrib."</font><br>";
146: $bottomid=$id;
147: } else {
148: $_=~/^(\w+)/;
149: if ($1 eq $env{'form.lastid'}) { $include=1; }
150: }
151: }
152: my $participant_output=join('<br />',sort @participants);
153: my $html=&Apache::lonxml::xmlbegin();
154: $r->print(<<ENDDOCUMENT);
155: $html
156: <head>
157: <title>The LearningOnline Network with CAPA</title>
158: <meta HTTP-EQUIV="Refresh" CONTENT="5; url=/adm/chatfetch?lastid=$lastid">
159: </head>
160: <body bgcolor="#FFFFFF">
161: <script>
162: parent.chatout.document.writeln('$newstuff');
163: parent.chatout.scroll(0,10000000);
164: </script>
165: $participant_output
166: </body>
167: </html>
168: ENDDOCUMENT
169: return OK;
170: }
171:
172: 1;
173: __END__
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