version 1.1, 2002/02/18 20:59:36
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version 1.6, 2007/04/17 23:18:42
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#!/usr/bin/perl |
#!/usr/bin/perl |
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# The LearningOnline Network with CAPA |
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# ping cgi-script |
# ping cgi-script |
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# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
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use strict; |
$|=1; |
$|=1; |
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use IO::File; |
use lib '/home/httpd/lib/perl/'; |
use IO::Socket; |
use Apache::lonnet; |
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# -------------------------------------------------- Non-critical communication |
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sub reply { |
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my ($cmd,$server)=@_; |
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my $peerfile="$perlvar{'lonSockDir'}/$server"; |
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my $client=IO::Socket::UNIX->new(Peer =>"$peerfile", |
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Type => SOCK_STREAM, |
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Timeout => 10) |
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or return "con_lost"; |
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print $client "$cmd\n"; |
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my $answer=<$client>; |
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chomp($answer); |
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if (!$answer) { $answer="con_lost"; } |
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return $answer; |
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} |
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# ------------------------------------------------------------ Read access.conf |
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{ |
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my $config=IO::File->new("/etc/httpd/conf/access.conf"); |
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while (my $configline=<$config>) { |
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if ($configline =~ /PerlSetVar/) { |
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my ($dummy,$varname,$varvalue)=split(/\s+/,$configline); |
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$perlvar{$varname}=$varvalue; |
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} |
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} |
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delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed |
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delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed |
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} |
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$testhost=$ENV{'QUERY_STRING'}; |
my $testhost=$ENV{'QUERY_STRING'}; |
$testhost=~s/\W//g; |
$testhost=~s/\W//g; |
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print "Content-type: text/plain\n\n". |
print("Content-type: text/plain\n\n". |
&reply('ping',$testhost)."\n"; |
&Apache::lonnet::reply('ping',$testhost)."\n"); |