loncom/lond - diff

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Diff for /loncom/lond between versions 1.94 and 1.134

version 1.94, 2002/09/03 02:01:14	version 1.134, 2003/08/12 03:28:31
Line 31	Line 31
# 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,
# 12/7,12/15,01/06,01/11,01/12,01/14,2/8,	# 12/7,12/15,01/06,01/11,01/12,01/14,2/8,
# 03/07,05/31 Gerd Kortemeyer	# 03/07,05/31 Gerd Kortemeyer
# 06/26 Scott Harrison
# 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
# 12/05,12/13,12/29 Gerd Kortemeyer	# 12/05,12/13,12/29 Gerd Kortemeyer
# YEAR=2001	# YEAR=2001
# Jan 01 Scott Harrison
# 02/12 Gerd Kortemeyer	# 02/12 Gerd Kortemeyer
# 03/15 Scott Harrison
# 03/24 Gerd Kortemeyer	# 03/24 Gerd Kortemeyer
# 04/02 Scott Harrison
# 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
# 11/26,11/27 Gerd Kortemeyer	# 11/26,11/27 Gerd Kortemeyer
# 12/20 Scott Harrison
# 12/22 Gerd Kortemeyer	# 12/22 Gerd Kortemeyer
# YEAR=2002	# YEAR=2002
# 01/20/02,02/05 Gerd Kortemeyer	# 01/20/02,02/05 Gerd Kortemeyer
# 02/05 Guy Albertelli	# 02/05 Guy Albertelli
# 02/07 Scott Harrison
# 02/12 Gerd Kortemeyer	# 02/12 Gerd Kortemeyer
# 02/19 Matthew Hall	# 02/19 Matthew Hall
# 02/25 Gerd Kortemeyer	# 02/25 Gerd Kortemeyer
# 05/11 Scott Harrison	# 01/xx/2003 Ron Fox.. Remove preforking. This makes the general daemon
	# logic simpler (and there were problems maintaining the preforked
	# population). Since the time averaged connection rate is close to zero
	# because lonc's purpose is to maintain near continuous connnections,
	# preforking is not really needed.
###	###

# based on "Perl Cookbook" ISBN 1-56592-243-3	use strict;
# preforker - server who forks first
# runs as a daemon
# HUPs
# uses IDEA encryption

use lib '/home/httpd/lib/perl/';	use lib '/home/httpd/lib/perl/';
use LONCAPA::Configuration;	use LONCAPA::Configuration;

use IO::Socket;	use IO::Socket;
use IO::File;	use IO::File;
use Apache::File;	#use Apache::File;
use Symbol;	use Symbol;
use POSIX;	use POSIX;
use Crypt::IDEA;	use Crypt::IDEA;
Line 83 my $DEBUG = 0; # Non zero to ena	Line 74 my $DEBUG = 0; # Non zero to ena
my $status='';	my $status='';
my $lastlog='';	my $lastlog='';

	my $VERSION='$Revision$'; #' stupid emacs
	my $remoteVERSION;
	my $currenthostid;
	my $currentdomainid;

	my $client;
	my $server;
	my $thisserver;

	my %hostid;
	my %hostdom;
	my %hostip;

	#
	# The array below are password error strings."
	#
	my $lastpwderror = 13; # Largest error number from lcpasswd.
	my @passwderrors = ("ok",
	"lcpasswd must be run as user 'www'",
	"lcpasswd got incorrect number of arguments",
	"lcpasswd did not get the right nubmer of input text lines",
	"lcpasswd too many simultaneous pwd changes in progress",
	"lcpasswd User does not exist.",
	"lcpasswd Incorrect current passwd",
	"lcpasswd Unable to su to root.",
	"lcpasswd Cannot set new passwd.",
	"lcpasswd Username has invalid characters",
	"lcpasswd Invalid characters in password",
	"11", "12",
	"lcpasswd Password mismatch");


	# The array below are lcuseradd error strings.:

	my $lastadderror = 13;
	my @adderrors = ("ok",
	"User ID mismatch, lcuseradd must run as user www",
	"lcuseradd Incorrect number of command line parameters must be 3",
	"lcuseradd Incorrect number of stdinput lines, must be 3",
	"lcuseradd Too many other simultaneous pwd changes in progress",
	"lcuseradd User does not exist",
	"lcuseradd Unabel to mak ewww member of users's group",
	"lcuseradd Unable to su to root",
	"lcuseradd Unable to set password",
	"lcuseradd Usrname has invbalid charcters",
	"lcuseradd Password has an invalid character",
	"lcuseradd User already exists",
	"lcuseradd Could not add user.",
	"lcuseradd Password mismatch");


	#
	# Convert an error return code from lcpasswd to a string value.
	#
	sub lcpasswdstrerror {
	my $ErrorCode = shift;
	if(($ErrorCode < 0) \|\| ($ErrorCode > $lastpwderror)) {
	return "lcpasswd Unrecognized error return value ".$ErrorCode;
	} else {
	return $passwderrors[$ErrorCode];
	}
	}

	#
	# Convert an error return code from lcuseradd to a string value:
	#
	sub lcuseraddstrerror {
	my $ErrorCode = shift;
	if(($ErrorCode < 0) \|\| ($ErrorCode > $lastadderror)) {
	return "lcuseradd - Unrecognized error code: ".$ErrorCode;
	} else {
	return $adderrors[$ErrorCode];
	}
	}

# grabs exception and records it to log before exiting	# grabs exception and records it to log before exiting
sub catchexception {	sub catchexception {
my ($error)=@_;	my ($error)=@_;
$SIG{'QUIT'}='DEFAULT';	$SIG{'QUIT'}='DEFAULT';
$SIG{__DIE__}='DEFAULT';	$SIG{__DIE__}='DEFAULT';
&logthis("<font color=red>CRITICAL: "	&logthis("<font color=red>CRITICAL: "
."ABNORMAL EXIT. Child $$ for server $wasserver died through "	."ABNORMAL EXIT. Child $$ for server $thisserver died through "
."a crash with this error msg->[$error]</font>");	."a crash with this error msg->[$error]</font>");
&logthis('Famous last words: '.$status.' - '.$lastlog);	&logthis('Famous last words: '.$status.' - '.$lastlog);
if ($client) { print $client "error: $error\n"; }	if ($client) { print $client "error: $error\n"; }
Line 107 $SIG{'QUIT'}=\&catchexception;	Line 173 $SIG{'QUIT'}=\&catchexception;
$SIG{__DIE__}=\&catchexception;	$SIG{__DIE__}=\&catchexception;

# ---------------------------------- Read loncapa_apache.conf and loncapa.conf	# ---------------------------------- Read loncapa_apache.conf and loncapa.conf
&status("Read loncapa_apache.conf and loncapa.conf");	&status("Read loncapa.conf and loncapa_apache.conf");
my $perlvarref=LONCAPA::Configuration::read_conf('loncapa_apache.conf',	my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
'loncapa.conf');
my %perlvar=%{$perlvarref};	my %perlvar=%{$perlvarref};
undef $perlvarref;	undef $perlvarref;

# ----------------------------- Make sure this process is running from user=www	# ----------------------------- Make sure this process is running from user=www
my $wwwid=getpwnam('www');	my $wwwid=getpwnam('www');
if ($wwwid!=$<) {	if ($wwwid!=$<) {
$emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";	my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
$subj="LON: $perlvar{'lonHostID'} User ID mismatch";	my $subj="LON: $currenthostid User ID mismatch";
system("echo 'User ID mismatch. lond must be run as user www.' \|\	system("echo 'User ID mismatch. lond must be run as user www.' \|\
mailto $emailto -s '$subj' > /dev/null");	mailto $emailto -s '$subj' > /dev/null");
exit 1;	exit 1;
Line 134 if (-e $pidfile) {	Line 199 if (-e $pidfile) {
if (kill 0 => $pide) { die "already running"; }	if (kill 0 => $pide) { die "already running"; }
}	}

$PREFORK=4; # number of children to maintain, at least four spare

# ------------------------------------------------------------- Read hosts file	# ------------------------------------------------------------- Read hosts file

open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") \|\| die "Can't read host file";	open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") \|\| die "Can't read host file";

while ($configline=<CONFIG>) {	while (my $configline=<CONFIG>) {
my ($id,$domain,$role,$name,$ip)=split(/:/,$configline);	my ($id,$domain,$role,$name,$ip)=split(/:/,$configline);
chomp($ip); $ip=~s/\D+$//;	chomp($ip); $ip=~s/\D+$//;
$hostid{$ip}=$id;	$hostid{$ip}=$id;
	$hostdom{$id}=$domain;
	$hostip{$id}=$ip;
if ($id eq $perlvar{'lonHostID'}) { $thisserver=$name; }	if ($id eq $perlvar{'lonHostID'}) { $thisserver=$name; }
$PREFORK++;
}	}
close(CONFIG);	close(CONFIG);

Line 161 $server = IO::Socket::INET->new(LocalPor	Line 225 $server = IO::Socket::INET->new(LocalPor

# global variables	# global variables

$MAX_CLIENTS_PER_CHILD = 50; # number of clients each child should	my %children = (); # keys are current child process IDs
# process	my $children = 0; # current number of children
%children = (); # keys are current child process IDs
$children = 0; # current number of children

sub REAPER { # takes care of dead children	sub REAPER { # takes care of dead children
$SIG{CHLD} = \&REAPER;	$SIG{CHLD} = \&REAPER;
Line 193 sub HUPSMAN { # sig	Line 255 sub HUPSMAN { # sig
kill 'INT' => keys %children;	kill 'INT' => keys %children;
&logthis("Free socket: ".shutdown($server,2)); # free up socket	&logthis("Free socket: ".shutdown($server,2)); # free up socket
&logthis("<font color=red>CRITICAL: Restarting</font>");	&logthis("<font color=red>CRITICAL: Restarting</font>");
unlink("$execdir/logs/lond.pid");
my $execdir=$perlvar{'lonDaemons'};	my $execdir=$perlvar{'lonDaemons'};
	unlink("$execdir/logs/lond.pid");
exec("$execdir/lond"); # here we go again	exec("$execdir/lond"); # here we go again
}	}

Line 202 sub checkchildren {	Line 264 sub checkchildren {
&initnewstatus();	&initnewstatus();
&logstatus();	&logstatus();
&logthis('Going to check on the children');	&logthis('Going to check on the children');
$docdir=$perlvar{'lonDocRoot'};	my $docdir=$perlvar{'lonDocRoot'};
foreach (sort keys %children) {	foreach (sort keys %children) {
sleep 1;	sleep 1;
unless (kill 'USR1' => $_) {	unless (kill 'USR1' => $_) {
Line 211 sub checkchildren {	Line 273 sub checkchildren {
}	}
}	}
sleep 5;	sleep 5;
	$SIG{ALRM} = sub { die "timeout" };
	$SIG{__DIE__} = 'DEFAULT';
foreach (sort keys %children) {	foreach (sort keys %children) {
unless (-e "$docdir/lon-status/londchld/$_.txt") {	unless (-e "$docdir/lon-status/londchld/$_.txt") {
	eval {
	alarm(300);
&logthis('Child '.$_.' did not respond');	&logthis('Child '.$_.' did not respond');
kill 9 => $_;	kill 9 => $_;
$emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";	#$emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
$subj="LON: $perlvar{'lonHostID'} killed lond process $_";	#$subj="LON: $currenthostid killed lond process $_";
my $result=`echo 'Killed lond process $_.' \| mailto $emailto -s '$subj' > /dev/null`;	#my $result=`echo 'Killed lond process $_.' \| mailto $emailto -s '$subj' > /dev/null`;
$execdir=$perlvar{'lonDaemons'};	#$execdir=$perlvar{'lonDaemons'};
$result=`/bin/cp $execdir/logs/lond.log $execdir/logs/lond.log.$_`	#$result=`/bin/cp $execdir/logs/lond.log $execdir/logs/lond.log.$_`;
	alarm(0);
	}
}	}
}	}
	$SIG{ALRM} = 'DEFAULT';
	$SIG{__DIE__} = \&cathcexception;
}	}

# --------------------------------------------------------------------- Logging	# --------------------------------------------------------------------- Logging
Line 249 sub logstatus {	Line 319 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".$currenthostid."\t".$status."\t".$lastlog."\n";
$fh->close();	$fh->close();
}	}
{	{
Line 266 sub initnewstatus {	Line 336 sub initnewstatus {
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,"$docdir/lon-status/londchld");	opendir(DIR,"$docdir/lon-status/londchld");
while ($filename=readdir(DIR)) {	while (my $filename=readdir(DIR)) {
unlink("$docdir/lon-status/londchld/$filename");	unlink("$docdir/lon-status/londchld/$filename");
}	}
closedir(DIR);	closedir(DIR);
Line 279 sub status {	Line 349 sub status {
my $now=time;	my $now=time;
my $local=localtime($now);	my $local=localtime($now);
$status=$local.': '.$what;	$status=$local.': '.$what;
	$0='lond: '.$what.' '.$local;
}	}

# -------------------------------------------------------- Escape Special Chars	# -------------------------------------------------------- Escape Special Chars
Line 309 sub reconlonc {	Line 380 sub reconlonc {
if (kill 0 => $loncpid) {	if (kill 0 => $loncpid) {
&logthis("lonc at pid $loncpid responding, sending USR1");	&logthis("lonc at pid $loncpid responding, sending USR1");
kill USR1 => $loncpid;	kill USR1 => $loncpid;
sleep 5;
if (-e "$peerfile") { return; }
&logthis("$peerfile still not there, give it another try");
sleep 10;
if (-e "$peerfile") { return; }
&logthis(
"<font color=blue>WARNING: $peerfile still not there, giving up</font>");
} else {	} else {
&logthis(	&logthis(
"<font color=red>CRITICAL: "	"<font color=red>CRITICAL: "
Line 345 sub subreply {	Line 409 sub subreply {
sub reply {	sub reply {
my ($cmd,$server)=@_;	my ($cmd,$server)=@_;
my $answer;	my $answer;
if ($server ne $perlvar{'lonHostID'}) {	if ($server ne $currenthostid) {
$answer=subreply($cmd,$server);	$answer=subreply($cmd,$server);
if ($answer eq 'con_lost') {	if ($answer eq 'con_lost') {
$answer=subreply("ping",$server);	$answer=subreply("ping",$server);
if ($answer ne $server) {	if ($answer ne $server) {
&logthis("sub reply: answer != server");	&logthis("sub reply: answer != server answer is $answer, server is $server");
&reconlonc("$perlvar{'lonSockDir'}/$server");	&reconlonc("$perlvar{'lonSockDir'}/$server");
}	}
$answer=subreply($cmd,$server);	$answer=subreply($cmd,$server);
Line 414 sub ishome {	Line 478 sub ishome {
# ======================================================= Continue main program	# ======================================================= Continue main program
# ---------------------------------------------------- Fork once and dissociate	# ---------------------------------------------------- Fork once and dissociate

$fpid=fork;	my $fpid=fork;
exit if $fpid;	exit if $fpid;
die "Couldn't fork: $!" unless defined ($fpid);	die "Couldn't fork: $!" unless defined ($fpid);

Line 422 POSIX::setsid() or die "Can't start new	Line 486 POSIX::setsid() or die "Can't start new

# ------------------------------------------------------- Write our PID on disk	# ------------------------------------------------------- Write our PID on disk

$execdir=$perlvar{'lonDaemons'};	my $execdir=$perlvar{'lonDaemons'};
open (PIDSAVE,">$execdir/logs/lond.pid");	open (PIDSAVE,">$execdir/logs/lond.pid");
print PIDSAVE "$$\n";	print PIDSAVE "$$\n";
close(PIDSAVE);	close(PIDSAVE);
&logthis("<font color=red>CRITICAL: ---------- Starting ----------</font>");	&logthis("<font color=red>CRITICAL: ---------- Starting ----------</font>");
&status('Starting');	&status('Starting');

# ------------------------------------------------------- Now we are on our own

# Fork off our children.
for (1 .. $PREFORK) {
make_new_child();
}

# ----------------------------------------------------- Install signal handlers	# ----------------------------------------------------- Install signal handlers

&status('Forked children');

$SIG{CHLD} = \&REAPER;	$SIG{CHLD} = \&REAPER;
$SIG{INT} = $SIG{TERM} = \&HUNTSMAN;	$SIG{INT} = $SIG{TERM} = \&HUNTSMAN;
$SIG{HUP} = \&HUPSMAN;	$SIG{HUP} = \&HUPSMAN;
$SIG{USR1} = \&checkchildren;	$SIG{USR1} = \&checkchildren;

# And maintain the population.

	# --------------------------------------------------------------
	# Accept connections. When a connection comes in, it is validated
	# and if good, a child process is created to process transactions
	# along the connection.

while (1) {	while (1) {
&status('Sleeping');	$client = $server->accept() or next;
sleep; # wait for a signal (i.e., child's death)	make_new_child($client);
&logthis('Woke up');
&status('Woke up');
for ($i = $children; $i < $PREFORK; $i++) {
make_new_child(); # top up the child pool
}
}	}

sub make_new_child {	sub make_new_child {
my $pid;	my $pid;
my $cipher;	my $cipher;
my $sigset;	my $sigset;

	$client = shift;
&logthis("Attempting to start child");	&logthis("Attempting to start child");
# block signal for fork	# block signal for fork
$sigset = POSIX::SigSet->new(SIGINT);	$sigset = POSIX::SigSet->new(SIGINT);
sigprocmask(SIG_BLOCK, $sigset)	sigprocmask(SIG_BLOCK, $sigset)
or die "Can't block SIGINT for fork: $!\n";	or die "Can't block SIGINT for fork: $!\n";

	my $clientip;
die "fork: $!" unless defined ($pid = fork);	die "fork: $!" unless defined ($pid = fork);

if ($pid) {	if ($pid) {
Line 479 sub make_new_child {	Line 541 sub make_new_child {
} else {	} else {
# 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{CHLD} = 'DEFAULT'; #make this default so that pwauth returns
	#don't get intercepted
$SIG{USR1}= \&logstatus;	$SIG{USR1}= \&logstatus;
$SIG{ALRM}= \&timeout;	$SIG{ALRM}= \&timeout;
$lastlog='Forked ';	$lastlog='Forked ';
Line 488 sub make_new_child {	Line 552 sub make_new_child {
sigprocmask(SIG_UNBLOCK, $sigset)	sigprocmask(SIG_UNBLOCK, $sigset)
or die "Can't unblock SIGINT for fork: $!\n";	or die "Can't unblock SIGINT for fork: $!\n";

$tmpsnum=0;	my $tmpsnum=0;
#---------------------------------------------------- kerberos 5 initialization	#---------------------------------------------------- kerberos 5 initialization
&Authen::Krb5::init_context();	&Authen::Krb5::init_context();
&Authen::Krb5::init_ets();	&Authen::Krb5::init_ets();

# handle connections until we've reached $MAX_CLIENTS_PER_CHILD
for ($i=0; $i < $MAX_CLIENTS_PER_CHILD; $i++) {
&status('Idle, waiting for connection');
$client = $server->accept() or last;
&status('Accepted connection');	&status('Accepted connection');
# =============================================================================	# =============================================================================
# do something with the connection	# do something with the connection
Line 504 sub make_new_child {	Line 564 sub make_new_child {
$client->sockopt(SO_KEEPALIVE, 1);# Enable monitoring of	$client->sockopt(SO_KEEPALIVE, 1);# Enable monitoring of
# connection liveness.	# connection liveness.
# see if we know client and check for spoof IP by challenge	# see if we know client and check for spoof IP by challenge
my $caller=getpeername($client);	my $caller = getpeername($client);
my ($port,$iaddr)=unpack_sockaddr_in($caller);	my ($port,$iaddr)=unpack_sockaddr_in($caller);
my $clientip=inet_ntoa($iaddr);	$clientip=inet_ntoa($iaddr);
my $clientrec=($hostid{$clientip} ne undef);	my $clientrec=($hostid{$clientip} ne undef);
&logthis(	&logthis(
"<font color=yellow>INFO: Connection $i, $clientip ($hostid{$clientip})</font>"	"<font color=yellow>INFO: Connection, $clientip ($hostid{$clientip})</font>"
);	);
&status("Connecting $clientip ($hostid{$clientip})");	&status("Connecting $clientip ($hostid{$clientip})");
my $clientok;	my $clientok;
if ($clientrec) {	if ($clientrec) {
&status("Waiting for init from $clientip ($hostid{$clientip})");	&status("Waiting for init from $clientip ($hostid{$clientip})");
my $remotereq=<$client>;	my $remotereq=<$client>;
$remotereq=~s/\W//g;	$remotereq=~s/[^\w:]//g;
if ($remotereq eq 'init') {	if ($remotereq =~ /^init/) {
	&sethost("sethost:$perlvar{'lonHostID'}");
my $challenge="$$".time;	my $challenge="$$".time;
print $client "$challenge\n";	print $client "$challenge\n";
&status(	&status(
Line 546 sub make_new_child {	Line 607 sub make_new_child {
if ($clientok) {	if ($clientok) {
# ---------------- New known client connecting, could mean machine online again	# ---------------- New known client connecting, could mean machine online again

&reconlonc("$perlvar{'lonSockDir'}/$hostid{$clientip}");	foreach my $id (keys(%hostip)) {
&logthis(	if ($hostip{$id} ne $clientip \|\|
"<font color=green>Established connection: $hostid{$clientip}</font>");	$hostip{$currenthostid} eq $clientip) {
	# no need to try to do recon's to myself
	next;
	}
	&reconlonc("$perlvar{'lonSockDir'}/$id");
	}
	&logthis("<font color=green>Established connection: $hostid{$clientip}</font>");
&status('Will listen to '.$hostid{$clientip});	&status('Will listen to '.$hostid{$clientip});
# ------------------------------------------------------------ Process requests	# ------------------------------------------------------------ Process requests
while (my $userinput=<$client>) {	while (my $userinput=<$client>) {
Line 576 sub make_new_child {	Line 643 sub make_new_child {
# ------------------------------------------------------------- Normal commands	# ------------------------------------------------------------- Normal commands
# ------------------------------------------------------------------------ ping	# ------------------------------------------------------------------------ ping
if ($userinput =~ /^ping/) {	if ($userinput =~ /^ping/) {
print $client "$perlvar{'lonHostID'}\n";	print $client "$currenthostid\n";
# ------------------------------------------------------------------------ pong	# ------------------------------------------------------------------------ pong
} elsif ($userinput =~ /^pong/) {	} elsif ($userinput =~ /^pong/) {
$reply=reply("ping",$hostid{$clientip});	my $reply=&reply("ping",$hostid{$clientip});
print $client "$perlvar{'lonHostID'}:$reply\n";	print $client "$currenthostid:$reply\n";
# ------------------------------------------------------------------------ ekey	# ------------------------------------------------------------------------ ekey
} elsif ($userinput =~ /^ekey/) {	} elsif ($userinput =~ /^ekey/) {
my $buildkey=time.$$.int(rand 100000);	my $buildkey=time.$$.int(rand 100000);
$buildkey=~tr/1-6/A-F/;	$buildkey=~tr/1-6/A-F/;
$buildkey=int(rand 100000).$buildkey.int(rand 100000);	$buildkey=int(rand 100000).$buildkey.int(rand 100000);
my $key=$perlvar{'lonHostID'}.$hostid{$clientip};	my $key=$currenthostid.$hostid{$clientip};
$key=~tr/a-z/A-Z/;	$key=~tr/a-z/A-Z/;
$key=~tr/G-P/0-9/;	$key=~tr/G-P/0-9/;
$key=~tr/Q-Z/0-9/;	$key=~tr/Q-Z/0-9/;
Line 603 sub make_new_child {	Line 670 sub make_new_child {
$loadavg=<$loadfile>;	$loadavg=<$loadfile>;
}	}
$loadavg =~ s/\s.*//g;	$loadavg =~ s/\s.*//g;
my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'};	my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'};
print $client "$loadpercent\n";	print $client "$loadpercent\n";
	# -------------------------------------------------------------------- userload
	} elsif ($userinput =~ /^userload/) {
	my $userloadpercent=&userload();
	print $client "$userloadpercent\n";
# ----------------------------------------------------------------- currentauth	# ----------------------------------------------------------------- currentauth
} elsif ($userinput =~ /^currentauth/) {	} elsif ($userinput =~ /^currentauth/) {
if ($wasenc==1) {	if ($wasenc==1) {
Line 634 sub make_new_child {	Line 705 sub make_new_child {
my ($howpwd,$contentpwd)=split(/:/,$realpasswd);	my ($howpwd,$contentpwd)=split(/:/,$realpasswd);
my $pwdcorrect=0;	my $pwdcorrect=0;
if ($howpwd eq 'internal') {	if ($howpwd eq 'internal') {
	&Debug("Internal auth");
$pwdcorrect=	$pwdcorrect=
(crypt($upass,$contentpwd) eq $contentpwd);	(crypt($upass,$contentpwd) eq $contentpwd);
} elsif ($howpwd eq 'unix') {	} elsif ($howpwd eq 'unix') {
$contentpwd=(getpwnam($uname))[1];	&Debug("Unix auth");
my $pwauth_path="/usr/local/sbin/pwauth";	if((getpwnam($uname))[1] eq "") { #no such user!
unless ($contentpwd eq 'x') {	$pwdcorrect = 0;
$pwdcorrect=	} else {
(crypt($upass,$contentpwd) eq $contentpwd);	$contentpwd=(getpwnam($uname))[1];
}	my $pwauth_path="/usr/local/sbin/pwauth";
	unless ($contentpwd eq 'x') {
	$pwdcorrect=
	(crypt($upass,$contentpwd) eq
	$contentpwd);
	}

elsif (-e $pwauth_path) {	elsif (-e $pwauth_path) {
open PWAUTH, "\|$pwauth_path" or	open PWAUTH, "\|$pwauth_path" or
die "Cannot invoke authentication";	die "Cannot invoke authentication";
Line 650 sub make_new_child {	Line 728 sub make_new_child {
close PWAUTH;	close PWAUTH;
$pwdcorrect=!$?;	$pwdcorrect=!$?;
}	}
	}
} elsif ($howpwd eq 'krb4') {	} elsif ($howpwd eq 'krb4') {
$null=pack("C",0);	my $null=pack("C",0);
unless ($upass=~/$null/) {	unless ($upass=~/$null/) {
$pwdcorrect=(	my $krb4_error = &Authen::Krb4::get_pw_in_tkt
Authen::Krb4::get_pw_in_tkt($uname,"",	($uname,"",$contentpwd,'krbtgt',
$contentpwd,'krbtgt',$contentpwd,1,	$contentpwd,1,$upass);
$upass) == 0);	if (!$krb4_error) {
} else { $pwdcorrect=0; }	$pwdcorrect = 1;
	} else {
	$pwdcorrect=0;
	# log error if it is not a bad password
	if ($krb4_error != 62) {
	&logthis('krb4:'.$uname.','.$contentpwd.','.
	&Authen::Krb4::get_err_txt($Authen::Krb4::error));
	}
	}
	}
} elsif ($howpwd eq 'krb5') {	} elsif ($howpwd eq 'krb5') {
$null=pack("C",0);	my $null=pack("C",0);
unless ($upass=~/$null/) {	unless ($upass=~/$null/) {
my $krbclient=&Authen::Krb5::parse_name($uname.'@'.$contentpwd);	my $krbclient=&Authen::Krb5::parse_name($uname.'@'.$contentpwd);
my $krbservice="krbtgt/".$contentpwd."\@".$contentpwd;	my $krbservice="krbtgt/".$contentpwd."\@".$contentpwd;
Line 698 sub make_new_child {	Line 786 sub make_new_child {
chomp($npass);	chomp($npass);
$upass=&unescape($upass);	$upass=&unescape($upass);
$npass=&unescape($npass);	$npass=&unescape($npass);
&logthis("Trying to change password for $uname");	&Debug("Trying to change password for $uname");
my $proname=propath($udom,$uname);	my $proname=propath($udom,$uname);
my $passfilename="$proname/passwd";	my $passfilename="$proname/passwd";
if (-e $passfilename) {	if (-e $passfilename) {
Line 708 sub make_new_child {	Line 796 sub make_new_child {
chomp($realpasswd);	chomp($realpasswd);
my ($howpwd,$contentpwd)=split(/:/,$realpasswd);	my ($howpwd,$contentpwd)=split(/:/,$realpasswd);
if ($howpwd eq 'internal') {	if ($howpwd eq 'internal') {
	&Debug("internal auth");
if (crypt($upass,$contentpwd) eq $contentpwd) {	if (crypt($upass,$contentpwd) eq $contentpwd) {
my $salt=time;	my $salt=time;
$salt=substr($salt,6,2);	$salt=substr($salt,6,2);
Line 724 sub make_new_child {	Line 813 sub make_new_child {
# one way or another.	# one way or another.
# First: Make sure the current password is	# First: Make sure the current password is
# correct	# correct
	&Debug("auth is unix");
$contentpwd=(getpwnam($uname))[1];	$contentpwd=(getpwnam($uname))[1];
my $pwdcorrect = "0";	my $pwdcorrect = "0";
my $pwauth_path="/usr/local/sbin/pwauth";	my $pwauth_path="/usr/local/sbin/pwauth";
Line 735 sub make_new_child {	Line 825 sub make_new_child {
die "Cannot invoke authentication";	die "Cannot invoke authentication";
print PWAUTH "$uname\n$upass\n";	print PWAUTH "$uname\n$upass\n";
close PWAUTH;	close PWAUTH;
$pwdcorrect=!$?;	&Debug("exited pwauth with $? ($uname,$upass) ");
	$pwdcorrect=($? == 0);
}	}
if ($pwdcorrect) {	if ($pwdcorrect) {
my $execdir=$perlvar{'lonDaemons'};	my $execdir=$perlvar{'lonDaemons'};
my $pf = IO::File->new("\|$execdir/lcpasswd");	&Debug("Opening lcpasswd pipeline");
	my $pf = IO::File->new("\|$execdir/lcpasswd > $perlvar{'lonDaemons'}/logs/lcpasswd.log");
print $pf "$uname\n$npass\n$npass\n";	print $pf "$uname\n$npass\n$npass\n";
close $pf;	close $pf;
my $result = ($?>0 ? 'pwchange_failure'	my $err = $?;
	my $result = ($err>0 ? 'pwchange_failure'
: 'ok');	: 'ok');
&logthis("Result of password change for $uname: $result");	&logthis("Result of password change for $uname: ".
	&lcpasswdstrerror($?));
print $client "$result\n";	print $client "$result\n";
} else {	} else {
print $client "non_authorized\n";	print $client "non_authorized\n";
Line 775 sub make_new_child {	Line 869 sub make_new_child {
$passfilename);	$passfilename);
if (-e $passfilename) {	if (-e $passfilename) {
print $client "already_exists\n";	print $client "already_exists\n";
} elsif ($udom ne $perlvar{'lonDefDomain'}) {	} elsif ($udom ne $currentdomainid) {
print $client "not_right_domain\n";	print $client "not_right_domain\n";
} else {	} else {
@fpparts=split(/\//,$proname);	my @fpparts=split(/\//,$proname);
$fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2];	my $fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2];
$fperror='';	my $fperror='';
for ($i=3;$i<=$#fpparts;$i++) {	for (my $i=3;$i<=$#fpparts;$i++) {
$fpnow.='/'.$fpparts[$i];	$fpnow.='/'.$fpparts[$i];
unless (-e $fpnow) {	unless (-e $fpnow) {
unless (mkdir($fpnow,0777)) {	unless (mkdir($fpnow,0777)) {
$fperror="error:$!";	$fperror="error: ".($!+0)
	." mkdir failed while attempting "
	."makeuser\n";
}	}
}	}
}	}
unless ($fperror) {	unless ($fperror) {
my $result=&make_passwd_file($umode,$npass,	my $result=&make_passwd_file($uname, $umode,$npass,
$passfilename);	$passfilename);
print $client $result;	print $client $result;
} else {	} else {
Line 813 sub make_new_child {	Line 909 sub make_new_child {
$npass=&unescape($npass);	$npass=&unescape($npass);
my $proname=&propath($udom,$uname);	my $proname=&propath($udom,$uname);
my $passfilename="$proname/passwd";	my $passfilename="$proname/passwd";
if ($udom ne $perlvar{'lonDefDomain'}) {	if ($udom ne $currentdomainid) {
print $client "not_right_domain\n";	print $client "not_right_domain\n";
} else {	} else {
my $result=&make_passwd_file($umode,$npass,	my $result=&make_passwd_file($uname, $umode,$npass,
$passfilename);	$passfilename);
print $client $result;	print $client $result;
}	}
Line 843 sub make_new_child {	Line 939 sub make_new_child {
$uid,$gid,$rdev,$size,	$uid,$gid,$rdev,$size,
$atime,$mtime,$ctime,	$atime,$mtime,$ctime,
$blksize,$blocks)=stat($fname);	$blksize,$blocks)=stat($fname);
$now=time;	my $now=time;
$since=$now-$atime;	my $since=$now-$atime;
if ($since>$perlvar{'lonExpire'}) {	if ($since>$perlvar{'lonExpire'}) {
$reply=	my $reply=
reply("unsub:$fname","$hostid{$clientip}");	&reply("unsub:$fname","$hostid{$clientip}");
unlink("$fname");	unlink("$fname");
} else {	} else {
my $transname="$fname.in.transfer";	my $transname="$fname.in.transfer";
Line 918 sub make_new_child {	Line 1014 sub make_new_child {
} elsif ($userinput =~ /^tokenauthuserfile/) {	} elsif ($userinput =~ /^tokenauthuserfile/) {
my ($cmd,$fname,$session)=split(/:/,$userinput);	my ($cmd,$fname,$session)=split(/:/,$userinput);
chomp($session);	chomp($session);
$reply='non_auth';	my $reply='non_auth';
if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'.	if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'.
$session.'.id')) {	$session.'.id')) {
while ($line=<ENVIN>) {	while (my $line=<ENVIN>) {
if ($line=~/userfile\.$fname\=/) { $reply='ok'; }	if ($line=~/userfile\.$fname\=/) { $reply='ok'; }
}	}
close(ENVIN);	close(ENVIN);
print $client $reply."\n";	print $client $reply."\n";
} else {	} else {
print $client "invalid_token\n";	print $client "invalid_token\n";
}	}
# ----------------------------------------------------------------- unsubscribe	# ----------------------------------------------------------------- unsubscribe
} elsif ($userinput =~ /^unsub/) {	} elsif ($userinput =~ /^unsub/) {
Line 940 sub make_new_child {	Line 1036 sub make_new_child {
# ------------------------------------------------------------------- subscribe	# ------------------------------------------------------------------- subscribe
} elsif ($userinput =~ /^sub/) {	} elsif ($userinput =~ /^sub/) {
print $client &subscribe($userinput,$clientip);	print $client &subscribe($userinput,$clientip);
	# ------------------------------------------------------------- current version
	} elsif ($userinput =~ /^currentversion/) {
	my ($cmd,$fname)=split(/:/,$userinput);
	print $client &currentversion($fname)."\n";
# ------------------------------------------------------------------------- log	# ------------------------------------------------------------------------- log
} elsif ($userinput =~ /^log/) {	} elsif ($userinput =~ /^log/) {
my ($cmd,$udom,$uname,$what)=split(/:/,$userinput);	my ($cmd,$udom,$uname,$what)=split(/:/,$userinput);
Line 952 sub make_new_child {	Line 1052 sub make_new_child {
print $hfh "$now:$hostid{$clientip}:$what\n";	print $hfh "$now:$hostid{$clientip}:$what\n";
print $client "ok\n";	print $client "ok\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." IO::File->new Failed "
	."while attempting log\n";
}	}
}	}
# ------------------------------------------------------------------------- put	# ------------------------------------------------------------------------- put
Line 972 sub make_new_child {	Line 1074 sub make_new_child {
) { print $hfh "P:$now:$what\n"; }	) { print $hfh "P:$now:$what\n"; }
}	}
my @pairs=split(/\&/,$what);	my @pairs=split(/\&/,$what);
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT,0640)) {	my %hash;
foreach $pair (@pairs) {	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
($key,$value)=split(/=/,$pair);	foreach my $pair (@pairs) {
	my ($key,$value)=split(/=/,$pair);
$hash{$key}=$value;	$hash{$key}=$value;
}	}
if (untie(%hash)) {	if (untie(%hash)) {
print $client "ok\n";	print $client "ok\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) failed ".
	"while attempting put\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!)
	." tie(GDBM) Failed ".
	"while attempting put\n";
}	}
} else {	} else {
print $client "refused\n";	print $client "refused\n";
Line 1010 sub make_new_child {	Line 1117 sub make_new_child {
}	}
}	}
my @pairs=split(/\&/,$what);	my @pairs=split(/\&/,$what);
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT,0640)) {	my %hash;
foreach $pair (@pairs) {	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
($key,$value)=split(/=/,$pair);	foreach my $pair (@pairs) {
	my ($key,$value)=split(/=/,$pair);
&ManagePermissions($key, $udom, $uname,	&ManagePermissions($key, $udom, $uname,
&GetAuthType( $udom,	&GetAuthType( $udom,
$uname));	$uname));
$hash{$key}=$value;	$hash{$key}=$value;

}	}
if (untie(%hash)) {	if (untie(%hash)) {
print $client "ok\n";	print $client "ok\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting rolesput\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting rolesput\n";
	}
	} else {
	print $client "refused\n";
	}
	# -------------------------------------------------------------------- rolesdel
	} elsif ($userinput =~ /^rolesdel/) {
	&Debug("rolesdel");
	if ($wasenc==1) {
	my ($cmd,$exedom,$exeuser,$udom,$uname,$what)
	=split(/:/,$userinput);
	&Debug("cmd = ".$cmd." exedom= ".$exedom.
	"user = ".$exeuser." udom=".$udom.
	"what = ".$what);
	my $namespace='roles';
	chomp($what);
	my $proname=propath($udom,$uname);
	my $now=time;
	{
	my $hfh;
	if (
	$hfh=IO::File->new(">>$proname/$namespace.hist")
	) {
	print $hfh "D:$now:$exedom:$exeuser:$what\n";
	}
	}
	my @rolekeys=split(/\&/,$what);
	my %hash;
	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
	foreach my $key (@rolekeys) {
	delete $hash{$key};
	}
	if (untie(%hash)) {
	print $client "ok\n";
	} else {
	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting rolesdel\n";
	}
	} else {
	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting rolesdel\n";
}	}
} else {	} else {
print $client "refused\n";	print $client "refused\n";
Line 1040 sub make_new_child {	Line 1193 sub make_new_child {
my @queries=split(/\&/,$what);	my @queries=split(/\&/,$what);
my $proname=propath($udom,$uname);	my $proname=propath($udom,$uname);
my $qresult='';	my $qresult='';
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) {	my %hash;
for ($i=0;$i<=$#queries;$i++) {	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
	for (my $i=0;$i<=$#queries;$i++) {
$qresult.="$hash{$queries[$i]}&";	$qresult.="$hash{$queries[$i]}&";
}	}
if (untie(%hash)) {	if (untie(%hash)) {
$qresult=~s/\&$//;	$qresult=~s/\&$//;
print $client "$qresult\n";	print $client "$qresult\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting get\n";
}	}
} else {	} else {
print $client "error:$!\n";	if ($!+0 == 2) {
	print $client "error:No such file or ".
	"GDBM reported bad block error\n";
	} else {
	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting get\n";
	}
}	}
# ------------------------------------------------------------------------ eget	# ------------------------------------------------------------------------ eget
} elsif ($userinput =~ /^eget/) {	} elsif ($userinput =~ /^eget/) {
Line 1063 sub make_new_child {	Line 1226 sub make_new_child {
my @queries=split(/\&/,$what);	my @queries=split(/\&/,$what);
my $proname=propath($udom,$uname);	my $proname=propath($udom,$uname);
my $qresult='';	my $qresult='';
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) {	my %hash;
for ($i=0;$i<=$#queries;$i++) {	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
	for (my $i=0;$i<=$#queries;$i++) {
$qresult.="$hash{$queries[$i]}&";	$qresult.="$hash{$queries[$i]}&";
}	}
if (untie(%hash)) {	if (untie(%hash)) {
Line 1084 sub make_new_child {	Line 1248 sub make_new_child {
print $client "error:no_key\n";	print $client "error:no_key\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting eget\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting eget\n";
}	}
# ------------------------------------------------------------------------- del	# ------------------------------------------------------------------------- del
} elsif ($userinput =~ /^del/) {	} elsif ($userinput =~ /^del/) {
Line 1105 sub make_new_child {	Line 1273 sub make_new_child {
) { print $hfh "D:$now:$what\n"; }	) { print $hfh "D:$now:$what\n"; }
}	}
my @keys=split(/\&/,$what);	my @keys=split(/\&/,$what);
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT,0640)) {	my %hash;
foreach $key (@keys) {	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
	foreach my $key (@keys) {
delete($hash{$key});	delete($hash{$key});
}	}
if (untie(%hash)) {	if (untie(%hash)) {
print $client "ok\n";	print $client "ok\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting del\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting del\n";
}	}
# ------------------------------------------------------------------------ keys	# ------------------------------------------------------------------------ keys
} elsif ($userinput =~ /^keys/) {	} elsif ($userinput =~ /^keys/) {
Line 1125 sub make_new_child {	Line 1298 sub make_new_child {
$namespace=~s/\W//g;	$namespace=~s/\W//g;
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)) {	my %hash;
foreach $key (keys %hash) {	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
	foreach my $key (keys %hash) {
$qresult.="$key&";	$qresult.="$key&";
}	}
if (untie(%hash)) {	if (untie(%hash)) {
$qresult=~s/\&$//;	$qresult=~s/\&$//;
print $client "$qresult\n";	print $client "$qresult\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting keys\n";
	}
	} else {
	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting keys\n";
	}
	# ----------------------------------------------------------------- dumpcurrent
	} elsif ($userinput =~ /^currentdump/) {
	my ($cmd,$udom,$uname,$namespace)
	=split(/:/,$userinput);
	$namespace=~s/\//\_/g;
	$namespace=~s/\W//g;
	my $qresult='';
	my $proname=propath($udom,$uname);
	my %hash;
	if (tie(%hash,'GDBM_File',
	"$proname/$namespace.db",
	&GDBM_READER(),0640)) {
	# Structure of %data:
	# $data{$symb}->{$parameter}=$value;
	# $data{$symb}->{'v.'.$parameter}=$version;
	# since $parameter will be unescaped, we do not
	# have to worry about silly parameter names...
	my %data = ();
	while (my ($key,$value) = each(%hash)) {
	my ($v,$symb,$param) = split(/:/,$key);
	next if ($v eq 'version' \|\| $symb eq 'keys');
	next if (exists($data{$symb}) &&
	exists($data{$symb}->{$param}) &&
	$data{$symb}->{'v.'.$param} > $v);
	$data{$symb}->{$param}=$value;
	$data{$symb}->{'v.'.$param}=$v;
	}
	if (untie(%hash)) {
	while (my ($symb,$param_hash) = each(%data)) {
	while(my ($param,$value) = each (%$param_hash)){
	next if ($param =~ /^v\./);
	$qresult.=$symb.':'.$param.'='.$value.'&';
	}
	}
	chop($qresult);
	print $client "$qresult\n";
	} else {
	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting currentdump\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting currentdump\n";
}	}
# ------------------------------------------------------------------------ dump	# ------------------------------------------------------------------------ dump
} elsif ($userinput =~ /^dump/) {	} elsif ($userinput =~ /^dump/) {
Line 1149 sub make_new_child {	Line 1373 sub make_new_child {
} else {	} else {
$regexp='.';	$regexp='.';
}	}
my $proname=propath($udom,$uname);
my $qresult='';	my $qresult='';
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) {	my $proname=propath($udom,$uname);
	my %hash;
	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
study($regexp);	study($regexp);
foreach $key (keys %hash) {	while (my ($key,$value) = each(%hash)) {
my $unescapeKey = &unescape($key);	if ($regexp eq '.') {
if (eval('$unescapeKey=~/$regexp/')) {	$qresult.=$key.'='.$value.'&';
$qresult.="$key=$hash{$key}&";	} else {
}	my $unescapeKey = &unescape($key);
	if (eval('$unescapeKey=~/$regexp/')) {
	$qresult.="$key=$value&";
	}
	}
}	}
if (untie(%hash)) {	if (untie(%hash)) {
$qresult=~s/\&$//;	chop($qresult);
print $client "$qresult\n";	print $client "$qresult\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting dump\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting dump\n";
}	}
# ----------------------------------------------------------------------- store	# ----------------------------------------------------------------------- store
} elsif ($userinput =~ /^store/) {	} elsif ($userinput =~ /^store/) {
Line 1185 sub make_new_child {	Line 1418 sub make_new_child {
) { print $hfh "P:$now:$rid:$what\n"; }	) { print $hfh "P:$now:$rid:$what\n"; }
}	}
my @pairs=split(/\&/,$what);	my @pairs=split(/\&/,$what);
	my %hash;
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT,0640)) {	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
my @previouskeys=split(/&/,$hash{"keys:$rid"});	my @previouskeys=split(/&/,$hash{"keys:$rid"});
my $key;	my $key;
$hash{"version:$rid"}++;	$hash{"version:$rid"}++;
my $version=$hash{"version:$rid"};	my $version=$hash{"version:$rid"};
my $allkeys='';	my $allkeys='';
foreach $pair (@pairs) {	foreach my $pair (@pairs) {
($key,$value)=split(/=/,$pair);	my ($key,$value)=split(/=/,$pair);
$allkeys.=$key.':';	$allkeys.=$key.':';
$hash{"$version:$rid:$key"}=$value;	$hash{"$version:$rid:$key"}=$value;
}	}
Line 1203 sub make_new_child {	Line 1436 sub make_new_child {
if (untie(%hash)) {	if (untie(%hash)) {
print $client "ok\n";	print $client "ok\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting store\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting store\n";
}	}
} else {	} else {
print $client "refused\n";	print $client "refused\n";
Line 1220 sub make_new_child {	Line 1457 sub make_new_child {
chomp($rid);	chomp($rid);
my $proname=propath($udom,$uname);	my $proname=propath($udom,$uname);
my $qresult='';	my $qresult='';
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER,0640)) {	my %hash;
	if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
my $version=$hash{"version:$rid"};	my $version=$hash{"version:$rid"};
$qresult.="version=$version&";	$qresult.="version=$version&";
my $scope;	my $scope;
Line 1237 sub make_new_child {	Line 1475 sub make_new_child {
$qresult=~s/\&$//;	$qresult=~s/\&$//;
print $client "$qresult\n";	print $client "$qresult\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting restore\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting restore\n";
}	}
# -------------------------------------------------------------------- chatsend	# -------------------------------------------------------------------- chatsend
} elsif ($userinput =~ /^chatsend/) {	} elsif ($userinput =~ /^chatsend/) {
Line 1249 sub make_new_child {	Line 1491 sub make_new_child {
print $client "ok\n";	print $client "ok\n";
# -------------------------------------------------------------------- chatretr	# -------------------------------------------------------------------- chatretr
} elsif ($userinput =~ /^chatretr/) {	} elsif ($userinput =~ /^chatretr/) {
my ($cmd,$cdom,$cnum)=split(/\:/,$userinput);	my
	($cmd,$cdom,$cnum,$udom,$uname)=split(/\:/,$userinput);
my $reply='';	my $reply='';
foreach (&getchat($cdom,$cnum)) {	foreach (&getchat($cdom,$cnum,$udom,$uname)) {
$reply.=&escape($_).':';	$reply.=&escape($_).':';
}	}
$reply=~s/\:$//;	$reply=~s/\:$//;
Line 1279 sub make_new_child {	Line 1522 sub make_new_child {
print $client "ok\n";	print $client "ok\n";
}	}
else {	else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." IO::File->new Failed ".
	"while attempting queryreply\n";
}	}
	# ----------------------------------------------------------------- courseidput
	} elsif ($userinput =~ /^courseidput/) {
	my ($cmd,$udom,$what)=split(/:/,$userinput);
	chomp($what);
	$udom=~s/\W//g;
	my $proname=
	"$perlvar{'lonUsersDir'}/$udom/nohist_courseids";
	my $now=time;
	my @pairs=split(/\&/,$what);
	my %hash;
	if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) {
	foreach my $pair (@pairs) {
	my ($key,$value)=split(/=/,$pair);
	$hash{$key}=$value.':'.$now;
	}
	if (untie(%hash)) {
	print $client "ok\n";
	} else {
	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting courseidput\n";
	}
	} else {
	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting courseidput\n";
	}
	# ---------------------------------------------------------------- courseiddump
	} elsif ($userinput =~ /^courseiddump/) {
	my ($cmd,$udom,$since,$description)
	=split(/:/,$userinput);
	if (defined($description)) {
	$description=&unescape($description);
	} else {
	$description='.';
	}
	unless (defined($since)) { $since=0; }
	my $qresult='';
	my $proname=
	"$perlvar{'lonUsersDir'}/$udom/nohist_courseids";
	my %hash;
	if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) {
	while (my ($key,$value) = each(%hash)) {
	my ($descr,$lasttime)=split(/\:/,$value);
	if ($lasttime<$since) { next; }
	if ($description eq '.') {
	$qresult.=$key.'='.$descr.'&';
	} else {
	my $unescapeVal = &unescape($descr);
	if (eval('$unescapeVal=~/$description/i')) {
	$qresult.="$key=$descr&";
	}
	}
	}
	if (untie(%hash)) {
	chop($qresult);
	print $client "$qresult\n";
	} else {
	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting courseiddump\n";
	}
	} else {
	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting courseiddump\n";
	}
# ----------------------------------------------------------------------- idput	# ----------------------------------------------------------------------- idput
} elsif ($userinput =~ /^idput/) {	} elsif ($userinput =~ /^idput/) {
my ($cmd,$udom,$what)=split(/:/,$userinput);	my ($cmd,$udom,$what)=split(/:/,$userinput);
Line 1295 sub make_new_child {	Line 1607 sub make_new_child {
) { print $hfh "P:$now:$what\n"; }	) { print $hfh "P:$now:$what\n"; }
}	}
my @pairs=split(/\&/,$what);	my @pairs=split(/\&/,$what);
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT,0640)) {	my %hash;
foreach $pair (@pairs) {	if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) {
($key,$value)=split(/=/,$pair);	foreach my $pair (@pairs) {
	my ($key,$value)=split(/=/,$pair);
$hash{$key}=$value;	$hash{$key}=$value;
}	}
if (untie(%hash)) {	if (untie(%hash)) {
print $client "ok\n";	print $client "ok\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting idput\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting idput\n";
}	}
# ----------------------------------------------------------------------- idget	# ----------------------------------------------------------------------- idget
} elsif ($userinput =~ /^idget/) {	} elsif ($userinput =~ /^idget/) {
Line 1316 sub make_new_child {	Line 1633 sub make_new_child {
my $proname="$perlvar{'lonUsersDir'}/$udom/ids";	my $proname="$perlvar{'lonUsersDir'}/$udom/ids";
my @queries=split(/\&/,$what);	my @queries=split(/\&/,$what);
my $qresult='';	my $qresult='';
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER,0640)) {	my %hash;
for ($i=0;$i<=$#queries;$i++) {	if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) {
	for (my $i=0;$i<=$#queries;$i++) {
$qresult.="$hash{$queries[$i]}&";	$qresult.="$hash{$queries[$i]}&";
}	}
if (untie(%hash)) {	if (untie(%hash)) {
$qresult=~s/\&$//;	$qresult=~s/\&$//;
print $client "$qresult\n";	print $client "$qresult\n";
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." untie(GDBM) Failed ".
	"while attempting idget\n";
}	}
} else {	} else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	." tie(GDBM) Failed ".
	"while attempting idget\n";
}	}
# ---------------------------------------------------------------------- tmpput	# ---------------------------------------------------------------------- tmpput
} elsif ($userinput =~ /^tmpput/) {	} elsif ($userinput =~ /^tmpput/) {
Line 1344 sub make_new_child {	Line 1666 sub make_new_child {
print $client "$id\n";	print $client "$id\n";
}	}
else {	else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	."IO::File->new Failed ".
	"while attempting tmpput\n";
}	}

# ---------------------------------------------------------------------- tmpget	# ---------------------------------------------------------------------- tmpget
Line 1360 sub make_new_child {	Line 1684 sub make_new_child {
close $store;	close $store;
}	}
else {	else {
print $client "error:$!\n";	print $client "error: ".($!+0)
	."IO::File->new Failed ".
	"while attempting tmpget\n";
}	}

	# ---------------------------------------------------------------------- tmpdel
	} elsif ($userinput =~ /^tmpdel/) {
	my ($cmd,$id)=split(/:/,$userinput);
	chomp($id);
	$id=~s/\W/\_/g;
	my $execdir=$perlvar{'lonDaemons'};
	if (unlink("$execdir/tmp/$id.tmp")) {
	print $client "ok\n";
	} else {
	print $client "error: ".($!+0)
	."Unlink tmp Failed ".
	"while attempting tmpdel\n";
	}
# -------------------------------------------------------------------------- ls	# -------------------------------------------------------------------------- ls
} elsif ($userinput =~ /^ls/) {	} elsif ($userinput =~ /^ls/) {
my ($cmd,$ulsdir)=split(/:/,$userinput);	my ($cmd,$ulsdir)=split(/:/,$userinput);
Line 1396 sub make_new_child {	Line 1735 sub make_new_child {
$client->close();	$client->close();
last;	last;
# ------------------------------------------------------------- unknown command	# ------------------------------------------------------------- unknown command
	} elsif ($userinput =~ /^sethost:/) {
	print $client &sethost($userinput)."\n";
	} elsif ($userinput =~/^version:/) {
	print $client &version($userinput)."\n";
} else {	} else {
# unknown command	# unknown command
print $client "unknown_cmd\n";	print $client "unknown_cmd\n";
Line 1411 sub make_new_child {	Line 1754 sub make_new_child {
&logthis("<font color=blue>WARNING: "	&logthis("<font color=blue>WARNING: "
."Rejected client $clientip, closing connection</font>");	."Rejected client $clientip, closing connection</font>");
}	}
}	}

# =============================================================================	# =============================================================================

&logthis("<font color=red>CRITICAL: "	&logthis("<font color=red>CRITICAL: "
."Disconnect from $clientip ($hostid{$clientip})</font>");	."Disconnect from $clientip ($hostid{$clientip})</font>");
# tidy up gracefully and finish

$server->close();

# this exit is VERY important, otherwise the child will become	# this exit is VERY important, otherwise the child will become
# a producer of more and more children, forking yourself into	# a producer of more and more children, forking yourself into
# process death.	# process death.
exit;	exit;
}
}	}


Line 1448 sub ManagePermissions	Line 1789 sub ManagePermissions
my $authtype= shift;	my $authtype= shift;

# See if the request is of the form /$domain/_au	# See if the request is of the form /$domain/_au
	&logthis("ruequest is $request");
if($request =~ /^(\/$domain\/_au)$/) { # It's an author rolesput...	if($request =~ /^(\/$domain\/_au)$/) { # It's an author rolesput...
my $execdir = $perlvar{'lonDaemons'};	my $execdir = $perlvar{'lonDaemons'};
my $userhome= "/home/$user" ;	my $userhome= "/home/$user" ;
Debug("system $execdir/lchtmldir $userhome $system $authtype");	&logthis("system $execdir/lchtmldir $userhome $user $authtype");
system("$execdir/lchtmldir $userhome $user $authtype");	system("$execdir/lchtmldir $userhome $user $authtype");
}	}
}	}
Line 1495 sub addline {	Line 1836 sub addline {
my $found=0;	my $found=0;
my $expr='^'.$hostid.':'.$ip.':';	my $expr='^'.$hostid.':'.$ip.':';
$expr =~ s/\./\\\./g;	$expr =~ s/\./\\\./g;
	my $sh;
if ($sh=IO::File->new("$fname.subscription")) {	if ($sh=IO::File->new("$fname.subscription")) {
while (my $subline=<$sh>) {	while (my $subline=<$sh>) {
if ($subline !~ /$expr/) {$contents.= $subline;} else {$found=1;}	if ($subline !~ /$expr/) {$contents.= $subline;} else {$found=1;}
Line 1509 sub addline {	Line 1851 sub addline {
}	}

sub getchat {	sub getchat {
my ($cdom,$cname)=@_;	my ($cdom,$cname,$udom,$uname)=@_;
my %hash;	my %hash;
my $proname=&propath($cdom,$cname);	my $proname=&propath($cdom,$cname);
my @entries=();	my @entries=();
Line 1518 sub getchat {	Line 1860 sub getchat {
@entries=map { $_.':'.$hash{$_} } sort keys %hash;	@entries=map { $_.':'.$hash{$_} } sort keys %hash;
untie %hash;	untie %hash;
}	}
return @entries;	my @participants=();
	my $cutoff=time-60;
	if (tie(%hash,'GDBM_File',"$proname/nohist_inchatroom.db",
	&GDBM_WRCREAT(),0640)) {
	$hash{$uname.':'.$udom}=time;
	foreach (sort keys %hash) {
	if ($hash{$_}>$cutoff) {
	$participants[$#participants+1]='active_participant:'.$_;
	}
	}
	untie %hash;
	}
	return (@participants,@entries);
}	}

sub chatadd {	sub chatadd {
Line 1568 sub unsub {	Line 1922 sub unsub {
return $result;	return $result;
}	}

	sub currentversion {
	my $fname=shift;
	my $version=-1;
	my $ulsdir='';
	if ($fname=~/^(.+)\/[^\/]+$/) {
	$ulsdir=$1;
	}
	my ($fnamere1,$fnamere2);
	# remove version if already specified
	$fname=~s/\.\d+\.(\w+(?:\.meta)*)$/\.$1/;
	# get the bits that go before and after the version number
	if ( $fname=~/^(.\.)(\w+(?:\.meta))$/ ) {
	$fnamere1=$1;
	$fnamere2='.'.$2;
	}
	if (-e $fname) { $version=1; }
	if (-e $ulsdir) {
	if(-d $ulsdir) {
	if (opendir(LSDIR,$ulsdir)) {
	my $ulsfn;
	while ($ulsfn=readdir(LSDIR)) {
	# see if this is a regular file (ignore links produced earlier)
	my $thisfile=$ulsdir.'/'.$ulsfn;
	unless (-l $thisfile) {
	if ($thisfile=~/\Q$fnamere1\E(\d+)\Q$fnamere2\E/) {
	if ($1>$version) { $version=$1; }
	}
	}
	}
	closedir(LSDIR);
	$version++;
	}
	}
	}
	return $version;
	}

	sub thisversion {
	my $fname=shift;
	my $version=-1;
	if ($fname=~/\.(\d+)\.\w+(?:\.meta)*$/) {
	$version=$1;
	}
	return $version;
	}

sub subscribe {	sub subscribe {
my ($userinput,$clientip)=@_;	my ($userinput,$clientip)=@_;
my $result;	my $result;
my ($cmd,$fname)=split(/:/,$userinput);	my ($cmd,$fname)=split(/:/,$userinput);
my $ownership=&ishome($fname);	my $ownership=&ishome($fname);
if ($ownership eq 'owner') {	if ($ownership eq 'owner') {
	# explitly asking for the current version?
	unless (-e $fname) {
	my $currentversion=&currentversion($fname);
	if (&thisversion($fname)==$currentversion) {
	if ($fname=~/^(.+)\.\d+\.(\w+(?:\.meta)*)$/) {
	my $root=$1;
	my $extension=$2;
	symlink($root.'.'.$extension,
	$root.'.'.$currentversion.'.'.$extension);
	unless ($extension=~/\.meta$/) {
	symlink($root.'.'.$extension.'.meta',
	$root.'.'.$currentversion.'.'.$extension.'.meta');
	}
	}
	}
	}
if (-e $fname) {	if (-e $fname) {
if (-d $fname) {	if (-d $fname) {
$result="directory\n";	$result="directory\n";
} else {	} else {
if (-e "$fname.$hostid{$clientip}") {&unsub($fname,$clientip);}	if (-e "$fname.$hostid{$clientip}") {&unsub($fname,$clientip);}
$now=time;	my $now=time;
my $found=&addline($fname,$hostid{$clientip},$clientip,	my $found=&addline($fname,$hostid{$clientip},$clientip,
"$hostid{$clientip}:$clientip:$now\n");	"$hostid{$clientip}:$clientip:$now\n");
if ($found) { $result="$fname\n"; }	if ($found) { $result="$fname\n"; }
Line 1601 sub subscribe {	Line 2017 sub subscribe {
}	}

sub make_passwd_file {	sub make_passwd_file {
my ($umode,$npass,$passfilename)=@_;	my ($uname, $umode,$npass,$passfilename)=@_;
my $result="ok\n";	my $result="ok\n";
if ($umode eq 'krb4' or $umode eq 'krb5') {	if ($umode eq 'krb4' or $umode eq 'krb5') {
{	{
Line 1627 sub make_passwd_file {	Line 2043 sub make_passwd_file {
my $execpath="$perlvar{'lonDaemons'}/"."lcuseradd";	my $execpath="$perlvar{'lonDaemons'}/"."lcuseradd";
{	{
&Debug("Executing external: ".$execpath);	&Debug("Executing external: ".$execpath);
my $se = IO::File->new("\|$execpath");	&Debug("user = ".$uname.", Password =". $npass);
	my $se = IO::File->new("\|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log");
print $se "$uname\n";	print $se "$uname\n";
print $se "$npass\n";	print $se "$npass\n";
print $se "$npass\n";	print $se "$npass\n";
}	}
	my $useraddok = $?;
	if($useraddok > 0) {
	&logthis("Failed lcuseradd: ".&lcuseraddstrerror($useraddok));
	}
my $pf = IO::File->new(">$passfilename");	my $pf = IO::File->new(">$passfilename");
print $pf "unix:\n";	print $pf "unix:\n";
}	}
Line 1646 sub make_passwd_file {	Line 2067 sub make_passwd_file {
return $result;	return $result;
}	}

	sub sethost {
	my ($remotereq) = @_;
	my (undef,$hostid)=split(/:/,$remotereq);
	if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; }
	if ($hostip{$perlvar{'lonHostID'}} eq $hostip{$hostid}) {
	$currenthostid=$hostid;
	$currentdomainid=$hostdom{$hostid};
	&logthis("Setting hostid to $hostid, and domain to $currentdomainid");
	} else {
	&logthis("Requested host id $hostid not an alias of ".
	$perlvar{'lonHostID'}." refusing connection");
	return 'unable_to_set';
	}
	return 'ok';
	}

	sub version {
	my ($userinput)=@_;
	$remoteVERSION=(split(/:/,$userinput))[1];
	return "version:$VERSION";
	}

	#There is a copy of this in lonnet.pm
	sub userload {
	my $numusers=0;
	{
	opendir(LONIDS,$perlvar{'lonIDsDir'});
	my $filename;
	my $curtime=time;
	while ($filename=readdir(LONIDS)) {
	if ($filename eq '.' \|\| $filename eq '..') {next;}
	my ($atime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[8];
	if ($curtime-$atime < 3600) { $numusers++; }
	}
	closedir(LONIDS);
	}
	my $userloadpercent=0;
	my $maxuserload=$perlvar{'lonUserLoadLim'};
	if ($maxuserload) {
	$userloadpercent=100*$numusers/$maxuserload;
	}
	$userloadpercent=sprintf("%.2f",$userloadpercent);
	return $userloadpercent;
	}

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

=head1 NAME	=head1 NAME

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.94
changed lines
	Added in v.1.134