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Annotation of loncom/interface/lonchatfetch.pm, revision 1.9

1.1       www         1: # The LearningOnline Network
                      2: # Chat Fetching
                      3: #
1.9     ! www         4: # $Id: lonchatfetch.pm,v 1.8 2003/03/28 23:16:25 www Exp $
1.1       www         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);
                     33: use Apache::lontexconvert;
1.4       www        34: use Apache::loncommon;
                     35: use Apache::lonnet;
1.1       www        36: 
                     37: sub handler {
                     38:     my $r = shift;
1.6       www        39: 
                     40:     my $loaderror=&Apache::lonnet::overloaderror($r);
                     41:     if ($loaderror) { return $loaderror; }
                     42:     $loaderror=
                     43:        &Apache::lonnet::overloaderror($r,
                     44:          $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
                     45:     if ($loaderror) { return $loaderror; }
                     46: 
1.1       www        47:     $r->content_type('text/html');
                     48:     $r->send_http_header;
                     49:     return OK if $r->header_only;
                     50: 
                     51: # ------------------------------------------------------------ retrieve entries
                     52: 
                     53:     my $cnum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
                     54:     my $cdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
                     55:     my $chome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1.4       www        56: 
1.1       www        57:     my @entries=split(/\:/,
1.8       www        58:        &Apache::lonnet::reply(
                     59:         "chatretr:$cdom:$cnum:$ENV{'user.domain'}:$ENV{'user.name'}",$chome));
1.1       www        60:     my ($lastid)=($entries[$#entries]=~/^(\w+)/);
                     61:     my ($thentime,$idnum)=split(/\_/,$lastid);
1.4       www        62: # ----------------------------------------------------------- Can see identity?
                     63:     my $crs='/'.$ENV{'request.course.id'};
                     64:     if ($ENV{'request.course.sec'}) {
                     65:        $crs.='_'.$ENV{'request.course.sec'};
                     66:     }                 
                     67:     $crs=~s/\_/\//g;
                     68:     my $seeid=&Apache::lonnet::allowed('rin',$crs);
1.1       www        69: # -------------------------------------------------------- see which ones apply
                     70:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['lastid']);
                     71:     my $include=0;
                     72:     my $newstuff='';
1.3       www        73:     my $bottomid='';
1.2       www        74:     unless ($ENV{'form.lastid'}) { 
                     75:        $include=1; 
                     76:        $newstuff='<html><body bgcolor="#FFFFFF">';
                     77:     }
1.9     ! www        78:     my @participants=();
1.1       www        79:     foreach (@entries) {
1.9     ! www        80: 	my ($id,$msg,$udom)=split(/\:/,&Apache::lonnet::unescape($_));
        !            81:  	if ($id eq 'active_participant') {
        !            82:            chomp($udom);
        !            83: 	   $participants[$#participants+1]=
        !            84:            &Apache::loncommon::nickname($msg,$udom);
        !            85: 	} elsif ($include) {
        !            86: 	    chomp($msg);
        !            87: 	    my ($msgtime,$msgnum)=split(/\_/,$id);
        !            88: 	    my ($sdom,$snum,$anon,$contrib)=split(/\:/,
        !            89: 					     &Apache::lonnet::unescape($msg));
        !            90: 	    $contrib=&Apache::lonnet::unescape($contrib);
        !            91: 	    $contrib=~s/\n/\<br \/\>/g;
        !            92: 	    $contrib=&Apache::lontexconvert::msgtexconverted($contrib);
        !            93: 	    $contrib=~s/\n/ /g;
        !            94: 	    $contrib=~s/\'/\&\#39\;/g;
        !            95: 	    my $sender='';
        !            96: 	    if ($seeid) {
        !            97: 		$sender=&Apache::loncommon::plainname($snum,$sdom);
        !            98: 		my $nick=&Apache::loncommon::nickname($snum,$sdom);
        !            99: 		if (($nick) && ($nick ne $sender)) {
        !           100: 		    $sender.=' '.$nick;
        !           101: 		}
        !           102: 		if ($anon) { $sender.=' [Anon]' };
        !           103: 	    } elsif (!$anon) {
        !           104: 		$sender=&Apache::loncommon::nickname($snum,$sdom);
1.7       www       105: 	    } else {
1.9     ! www       106: 		$sender=&Apache::loncommon::screenname($snum,$sdom);
        !           107: 		unless ($sender) { $sender="Anonymous"; }
1.7       www       108: 	    }
1.9     ! www       109: 	    $sender=~s/\'/\"/g;
        !           110: 	    my $color=$sender;
        !           111: 	    $color=~tr/a-j/0-9/;
        !           112: 	    $color=~tr/A-J/0-9/;
        !           113: 	    $color=~tr/k-t/0-9/;
        !           114: 	    $color=~tr/K-T/0-9/;
        !           115: 	    $color=~tr/u-z/0-5/;
        !           116: 	    $color=~tr/U-Z/0-5/;
        !           117: 	    $color=~s/\D//g;
        !           118: 	    $color=substr($color,0,6);
        !           119: 	    my $timestamp=localtime($msgtime);
        !           120: 	    my ($mhour,$mmin,$msec)=($timestamp=~/(\d\d)\:(\d\d)\:(\d\d)/);
        !           121: 	    $newstuff.='<font color="#'.$color.'"><a name="'.$id.'"><b>'.
        !           122: 		$sender.'</b> ('.$mhour.':'.$mmin.':'.$msec.'): '.
        !           123: 		$contrib."</font><br>";
        !           124: 	    $bottomid=$id;
        !           125: 	} else {
        !           126: 	    $_=~/^(\w+)/;
        !           127: 	    if ($1 eq $ENV{'form.lastid'}) { $include=1; }
        !           128: 	}
1.1       www       129:     }
1.9     ! www       130:     my $participant_output=join('<br />',sort @participants);
1.1       www       131:     $r->print(<<ENDDOCUMENT);
                    132: <html>
                    133: <head>
                    134: <title>The LearningOnline Network with CAPA</title>
                    135:   <meta HTTP-EQUIV="Refresh" CONTENT="5; url=/adm/chatfetch?lastid=$lastid">
                    136: </head>
                    137: <body bgcolor="#FFFFFF">
                    138: <script>
                    139: parent.chatout.document.writeln('$newstuff');
1.3       www       140: parent.chatout.scroll(0,10000000);
1.1       www       141: </script>
1.9     ! www       142: $participant_output
1.1       www       143: </body>
                    144: </html>
                    145: ENDDOCUMENT
                    146:     return OK;
                    147: } 
                    148: 
                    149: 1;
                    150: __END__