loncom/lond - diff

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Diff for /loncom/lond between versions 1.59 and 1.64

version 1.59, 2001/11/27 21:59:07	version 1.64, 2002/01/20 18:28:31
Line 1	Line 1
#!/usr/bin/perl	#!/usr/bin/perl
# The LearningOnline Network	# The LearningOnline Network
# lond "LON Daemon" Server (port "LOND" 5663)	# lond "LON Daemon" Server (port "LOND" 5663)
	#
	# $Id$
	#
	# 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/
	#
# 5/26/99,6/4,6/10,6/11,6/14,6/15,6/26,6/28,6/30,	# 5/26/99,6/4,6/10,6/11,6/14,6/15,6/26,6/28,6/30,
# 7/8,7/9,7/10,7/12,7/17,7/19,9/21,	# 7/8,7/9,7/10,7/12,7/17,7/19,9/21,
# 10/7,10/8,10/9,10/11,10/13,10/15,11/4,11/16,	# 10/7,10/8,10/9,10/11,10/13,10/15,11/4,11/16,
Line 10	Line 35
# 06/29,06/30,07/14,07/15,07/17,07/20,07/25,09/18 Gerd Kortemeyer	# 06/29,06/30,07/14,07/15,07/17,07/20,07/25,09/18 Gerd Kortemeyer
# 12/05 Scott Harrison	# 12/05 Scott Harrison
# 12/05,12/13,12/29 Gerd Kortemeyer	# 12/05,12/13,12/29 Gerd Kortemeyer
	# YEAR=2001
# Jan 01 Scott Harrison	# Jan 01 Scott Harrison
# 02/12 Gerd Kortemeyer	# 02/12 Gerd Kortemeyer
# 03/15 Scott Harrison	# 03/15 Scott Harrison
Line 18	Line 44
# 05/11,05/28,08/30 Gerd Kortemeyer	# 05/11,05/28,08/30 Gerd Kortemeyer
# 9/30,10/22,11/13,11/15,11/16 Scott Harrison	# 9/30,10/22,11/13,11/15,11/16 Scott Harrison
# 11/26,11/27 Gerd Kortemeyer	# 11/26,11/27 Gerd Kortemeyer
#	# 12/20 Scott Harrison
# $Id$	# 12/22 Gerd Kortemeyer
	# YEAR=2002
	# 01/20/02 Gerd Kortemeyer
###	###

# based on "Perl Cookbook" ISBN 1-56592-243-3	# based on "Perl Cookbook" ISBN 1-56592-243-3
Line 57 sub catchexception {	Line 85 sub catchexception {
die($error);	die($error);
}	}

	sub timeout {
	&logthis("<font color=ref>CRITICAL: TIME OUT ".$$."</font>");
	&catchexception('Timeout');
	}
# -------------------------------- Set signal handlers to record abnormal exits	# -------------------------------- Set signal handlers to record abnormal exits

$SIG{'QUIT'}=\&catchexception;	$SIG{'QUIT'}=\&catchexception;
Line 160 sub checkchildren {	Line 192 sub checkchildren {
&initnewstatus();	&initnewstatus();
&logstatus();	&logstatus();
&logthis('Going to check on the children');	&logthis('Going to check on the children');
map {	$docdir=$perlvar{'lonDocRoot'};
	foreach (sort keys %children) {
sleep 1;	sleep 1;
unless (kill 'USR1' => $_) {	unless (kill 'USR1' => $_) {
&logthis ('Child '.$_.' is dead');	&logthis ('Child '.$_.' is dead');
&logstatus($$.' is dead');	&logstatus($$.' is dead');
}	}
} sort keys %children;	}
	sleep 5;
	foreach (sort keys %children) {
	unless (-e "$docdir/lon-status/londchld/$_.txt") {
	&logthis('Child '.$_.' did not respond');
	kill 9 => $_;
	}
	}
}	}

# --------------------------------------------------------------------- Logging	# --------------------------------------------------------------------- Logging
Line 185 sub logthis {	Line 225 sub logthis {

sub logstatus {	sub logstatus {
my $docdir=$perlvar{'lonDocRoot'};	my $docdir=$perlvar{'lonDocRoot'};
	{
my $fh=IO::File->new(">>$docdir/lon-status/londstatus.txt");	my $fh=IO::File->new(">>$docdir/lon-status/londstatus.txt");
print $fh $$."\t".$status."\t".$lastlog."\n";	print $fh $$."\t".$status."\t".$lastlog."\n";
	$fh->close();
	}
	{
	my $fh=IO::File->new(">$docdir/lon-status/londchld/$$.txt");
	print $fh $status."\n".$lastlog."\n".time;
	$fh->close();
	}
}	}

sub initnewstatus {	sub initnewstatus {
Line 195 sub initnewstatus {	Line 243 sub initnewstatus {
my $now=time;	my $now=time;
my $local=localtime($now);	my $local=localtime($now);
print $fh "LOND status $local - parent $$\n\n";	print $fh "LOND status $local - parent $$\n\n";
	opendir(DIR,"$docdir/lon-status/londchld");
	while ($filename=readdir(DIR)) {
	unlink("$docdir/lon-status/londchld/$filename");
	}
	closedir(DIR);
}	}

# -------------------------------------------------------------- Status setting	# -------------------------------------------------------------- Status setting
Line 404 sub make_new_child {	Line 457 sub make_new_child {
# Child can not return from this subroutine.	# Child can not return from this subroutine.
$SIG{INT} = 'DEFAULT'; # make SIGINT kill us as it did before	$SIG{INT} = 'DEFAULT'; # make SIGINT kill us as it did before
$SIG{USR1}= \&logstatus;	$SIG{USR1}= \&logstatus;
	$SIG{ALRM}= \&timeout;
$lastlog='Forked ';	$lastlog='Forked ';
$status='Forked';	$status='Forked';

Line 472 sub make_new_child {	Line 526 sub make_new_child {
chomp($userinput);	chomp($userinput);
&status('Processing '.$hostid{$clientip}.': '.$userinput);	&status('Processing '.$hostid{$clientip}.': '.$userinput);
my $wasenc=0;	my $wasenc=0;
	alarm(120);
# ------------------------------------------------------------ See if encrypted	# ------------------------------------------------------------ See if encrypted
if ($userinput =~ /^enc/) {	if ($userinput =~ /^enc/) {
if ($cipher) {	if ($cipher) {
Line 1063 sub make_new_child {	Line 1118 sub make_new_child {
}	}
# ------------------------------------------------------------------------ dump	# ------------------------------------------------------------------------ dump
} elsif ($userinput =~ /^dump/) {	} elsif ($userinput =~ /^dump/) {
my ($cmd,$udom,$uname,$namespace)	my ($cmd,$udom,$uname,$namespace,$regexp)
=split(/:/,$userinput);	=split(/:/,$userinput);
$namespace=~s/\//\_/g;	$namespace=~s/\//\_/g;
$namespace=~s/\W//g;	$namespace=~s/\W//g;
	if (defined($regexp)) {
	$regexp=&unescape($regexp);
	} else {
	$regexp='.';
	}
my $proname=propath($udom,$uname);	my $proname=propath($udom,$uname);
my $qresult='';	my $qresult='';
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) {	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) {
foreach $key (keys %hash) {	foreach $key (keys %hash) {
$qresult.="$key=$hash{$key}&";	if (eval('$key=~/$regexp/')) {
	$qresult.="$key=$hash{$key}&";
	}
}	}
if (untie(%hash)) {	if (untie(%hash)) {
$qresult=~s/\&$//;	$qresult=~s/\&$//;
Line 1301 sub make_new_child {	Line 1363 sub make_new_child {
print $client "unknown_cmd\n";	print $client "unknown_cmd\n";
}	}
# -------------------------------------------------------------------- complete	# -------------------------------------------------------------------- complete
	alarm(0);
&status('Listening to '.$hostid{$clientip});	&status('Listening to '.$hostid{$clientip});
}	}
# --------------------------------------------- client unknown or fishy, refuse	# --------------------------------------------- client unknown or fishy, refuse
Line 1327 sub make_new_child {	Line 1390 sub make_new_child {
}	}
}	}

	# ----------------------------------- POD (plain old documentation, CPAN style)

	=head1 NAME

	lond - "LON Daemon" Server (port "LOND" 5663)

	=head1 SYNOPSIS

	Should only be run as user=www. Invoked by loncron.

	=head1 DESCRIPTION

	Preforker - server who forks first. Runs as a daemon. HUPs.
	Uses IDEA encryption

	=head1 README

	Not yet written.

	=head1 PREREQUISITES

	IO::Socket
	IO::File
	Apache::File
	Symbol
	POSIX
	Crypt::IDEA
	LWP::UserAgent()
	GDBM_File
	Authen::Krb4

	=head1 COREQUISITES

	=head1 OSNAMES

	linux

	=head1 SCRIPT CATEGORIES

	Server/Process

	=cut

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Removed from v.1.59
changed lines
	Added in v.1.64