#!/usr/bin/perl
$|=1;
# Take machine offline, reroute traffic
#
# $Id: takeoffline.pl,v 1.4 2008/12/25 01:56:03 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
use strict;
use lib '/home/httpd/lib/perl/';
use Apache::lonlocal;
use LONCAPA::loncgi;
use LONCAPA::lonauthcgi;
print "Content-type: text/html\n\n";
&main();
sub main {
if (!&LONCAPA::lonauthcgi::check_ipbased_access('takeoffline')) {
if (!&LONCAPA::loncgi::check_cookie_and_load_env()) {
&Apache::lonlocal::get_language_handle();
print(&LONCAPA::loncgi::missing_cookie_msg());
return;
}
if (!&LONCAPA::lonauthcgi::can_view('takeoffline')) {
&Apache::lonlocal::get_language_handle();
print(&LONCAPA::lonauthcgi::unauthorized_msg('takeoffline'));
return;
}
}
&Apache::lonlocal::get_language_handle();
print ''.&Apache::lonlocal::mt('Take Offline').'
';
my $statusmsg;
if ($ENV{'QUERY_STRING'}) {
my ($otherserver,$domain)=split(/\&/,$ENV{'QUERY_STRING'});
if (&reroute($otherserver,$domain)) {
print &Apache::lonlocal::mt('Rerouting to [_1]',$otherserver);
$statusmsg = "status=rerouting&server=$otherserver&domain=$domain&time=".time.
"by=$Apache::lonnet::env{'user.name'}:$Apache::lonnet::env{'user.domain'}";
}
} else {
if (&dead()) {
print &Apache::lonlocal::mt('No reroute server given, taking completely offline.');
$statusmsg = 'status=offline&time='.time."by=$Apache::lonnet::env{'user.name'}:$Apache::lonnet::env{'user.domain'}"
}
}
print "";
if ($statusmsg) {
if (open (STATUS,'>/home/httpd/html/lon-status/reroute.txt')) {
print STATUS "$statusmsg\n";
close(STATUS);
} else {
print &Apache::lonlocal::mt('Logging of status change to [_1] failed.','reroute.txt');
}
}
}
sub dead {
if (open (OUT,'>/home/httpd/html/index.html')) {
print OUT &Apache::lonlocal::mt('This LON-CAPA server is currently offline.');
close(OUT);
return 'ok';
}
return;
}
sub reroute {
my ($otherserver,$domain) = @_;
if (open (OUT,'>/home/httpd/html/index.html')) {
print OUT (<
Welcome to the LearningOnline Network with CAPA
Connecting to
http://$otherserver/