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Annotation of loncom/interface/lonchat.pm, revision 1.17

1.1       www         1: # The LearningOnline Network
1.2       www         2: # Chat
1.1       www         3: #
1.17    ! raeburn     4: # $Id: lonchat.pm,v 1.16 2008/01/19 21:40:41 raeburn Exp $
1.1       www         5: #
1.3       www         6: # Copyright Michigan State University Board of Trustees
1.1       www         7: #
1.3       www         8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
1.1       www         9: #
1.3       www        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.
1.1       www        14: #
1.3       www        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: 
1.2       www        29: package Apache::lonchat;
1.1       www        30: 
                     31: use strict;
1.7       matthew    32: use Apache::Constants qw(:common :http);
1.5       bowersj2   33: use Apache::loncommon;
1.10      albertel   34: use Apache::lonnet;
1.16      raeburn    35: use Apache::lonlocal;
1.1       www        36: 
                     37: sub handler {
                     38:     my $r = shift;
1.9       albertel   39:     &Apache::loncommon::content_type($r,'text/html');
1.1       www        40:     $r->send_http_header;
                     41:     return OK if $r->header_only;
1.12      raeburn    42:     
                     43:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['group']);
                     44:     my ($group,$group_elem);
                     45:     if (defined($env{'form.group'})) {
                     46:         $group = $env{'form.group'};
                     47:         $group_elem = '<input type="hidden" name="group" value="'.$group.'" />'; 
1.14      raeburn    48:         if ((! &Apache::lonnet::allowed('pgc',$env{'request.course.id'}.'/'.
                     49:                                                                     $group))
1.15      raeburn    50:             && (! &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
1.12      raeburn    51:             return HTTP_NOT_ACCEPTABLE;
                     52:         }
                     53:     } else {
                     54:         if (! &Apache::lonnet::allowed('plc',$env{'request.course.id'}.
1.10      albertel   55:               ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')
1.7       matthew    56:                                    )) {
1.12      raeburn    57:             return HTTP_NOT_ACCEPTABLE;
                     58:         }
1.7       matthew    59:     }
1.1       www        60: 
1.10      albertel   61:     if ($env{'form.newchat'}) {
1.12      raeburn    62: 	&Apache::lonnet::chatsend(&Apache::lonfeedback::clear_out_html($env{'form.newchat'}),$env{'form.anonymous'},$group);
1.3       www        63:     }
1.1       www        64: # --------------------------------------------------- Print login screen header
1.17    ! raeburn    65:     my $latexHelp = Apache::loncommon::helpLatexCheatsheet(undef,undef,1);
1.13      albertel   66:     my %loaditems = (onload => 'this.document.chatentry.newchat.focus();');
1.11      albertel   67:     my $start_page = 
                     68: 	&Apache::loncommon::start_page('Chat',undef,
                     69: 				       {'only_body'   => 1,
1.13      albertel   70: 					'add_entries' => \%loaditems,});
1.11      albertel   71:     my $end_page = &Apache::loncommon::end_page();
1.16      raeburn    72:     my %lt = &Apache::lonlocal::texthash(
                     73:                                         anon => 'Post Anonymous',
                     74:                                         post => 'Post',
                     75:                                       );         
1.1       www        76:     $r->print(<<ENDDOCUMENT);
1.11      albertel   77: $start_page
1.4       www        78: <form method="post" name="chatentry">
1.5       bowersj2   79: $latexHelp
1.3       www        80: <input type="text" size="60" name="newchat">
1.16      raeburn    81: <input value="$lt{'anon'}" name="anonymous" type="submit">
                     82: <input value="$lt{'post'}" name="newentry" type="submit">
1.12      raeburn    83: $group_elem
1.3       www        84: </form>
1.11      albertel   85: $end_page
1.1       www        86: ENDDOCUMENT
                     87:     return OK;
                     88: } 
                     89: 
                     90: 1;
                     91: __END__