version 1.53, 2001/10/23 04:38:45
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version 1.58, 2001/11/26 20:59:01
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Line 16
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# 03/24 Gerd Kortemeyer |
# 03/24 Gerd Kortemeyer |
# 04/02 Scott Harrison |
# 04/02 Scott Harrison |
# 05/11,05/28,08/30 Gerd Kortemeyer |
# 05/11,05/28,08/30 Gerd Kortemeyer |
# 9/30,10/22 Scott Harrison |
# 9/30,10/22,11/13,11/15,11/16 Scott Harrison |
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# 11/26 Gerd Kortemeyer |
# |
# |
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# $Id$ |
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### |
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# based on "Perl Cookbook" ISBN 1-56592-243-3 |
# based on "Perl Cookbook" ISBN 1-56592-243-3 |
# preforker - server who forks first |
# preforker - server who forks first |
# runs as a daemon |
# runs as a daemon |
Line 36 use Authen::Krb4;
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Line 40 use Authen::Krb4;
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use lib '/home/httpd/lib/perl/'; |
use lib '/home/httpd/lib/perl/'; |
use localauth; |
use localauth; |
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my $status=''; |
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my $lastlog=''; |
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# grabs exception and records it to log before exiting |
# grabs exception and records it to log before exiting |
sub catchexception { |
sub catchexception { |
my ($error)=@_; |
my ($error)=@_; |
Line 44 sub catchexception {
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Line 51 sub catchexception {
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&logthis("<font color=red>CRITICAL: " |
&logthis("<font color=red>CRITICAL: " |
."ABNORMAL EXIT. Child $$ for server $wasserver died through " |
."ABNORMAL EXIT. Child $$ for server $wasserver died through " |
."a crash with this error msg->[$error]</font>"); |
."a crash with this error msg->[$error]</font>"); |
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&logthis('Famous last words: '.$status.' - '.$lastlog); |
if ($client) { print $client "error: $error\n"; } |
if ($client) { print $client "error: $error\n"; } |
die($error); |
die($error); |
} |
} |
Line 146 sub HUPSMAN { # sig
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Line 154 sub HUPSMAN { # sig
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exec("$execdir/lond"); # here we go again |
exec("$execdir/lond"); # here we go again |
} |
} |
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sub checkchildren { |
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&initnewstatus(); |
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&logstatus(); |
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&logthis('Going to check on the children'); |
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map { |
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sleep 1; |
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unless (kill 'USR1' => $_) { |
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&logthis ('Child '.$_.' is dead'); |
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&logstatus($$.' is dead'); |
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} |
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} sort keys %children; |
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} |
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# --------------------------------------------------------------------- Logging |
# --------------------------------------------------------------------- Logging |
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sub logthis { |
sub logthis { |
Line 154 sub logthis {
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Line 175 sub logthis {
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my $fh=IO::File->new(">>$execdir/logs/lond.log"); |
my $fh=IO::File->new(">>$execdir/logs/lond.log"); |
my $now=time; |
my $now=time; |
my $local=localtime($now); |
my $local=localtime($now); |
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$lastlog=$local.': '.$message; |
print $fh "$local ($$): $message\n"; |
print $fh "$local ($$): $message\n"; |
} |
} |
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# ------------------------------------------------------------------ Log status |
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sub logstatus { |
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my $docdir=$perlvar{'lonDocRoot'}; |
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my $fh=IO::File->new(">>$docdir/lon-status/londstatus.txt"); |
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print $fh $$."\t".$status."\t".$lastlog."\n"; |
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} |
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sub initnewstatus { |
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my $docdir=$perlvar{'lonDocRoot'}; |
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my $fh=IO::File->new(">$docdir/lon-status/londstatus.txt"); |
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my $now=time; |
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my $local=localtime($now); |
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print $fh "LOND status $local - parent $$\n\n"; |
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} |
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# -------------------------------------------------------------- Status setting |
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sub status { |
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my $what=shift; |
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my $now=time; |
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my $local=localtime($now); |
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$status=$local.': '.$what; |
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} |
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# -------------------------------------------------------- Escape Special Chars |
# -------------------------------------------------------- Escape Special Chars |
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Line 303 open (PIDSAVE,">$execdir/logs/lond.pid")
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Line 349 open (PIDSAVE,">$execdir/logs/lond.pid")
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print PIDSAVE "$$\n"; |
print PIDSAVE "$$\n"; |
close(PIDSAVE); |
close(PIDSAVE); |
&logthis("<font color=red>CRITICAL: ---------- Starting ----------</font>"); |
&logthis("<font color=red>CRITICAL: ---------- Starting ----------</font>"); |
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&status('Starting'); |
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# ------------------------------------------------------- Now we are on our own |
# ------------------------------------------------------- Now we are on our own |
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Line 313 for (1 .. $PREFORK) {
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Line 360 for (1 .. $PREFORK) {
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# ----------------------------------------------------- Install signal handlers |
# ----------------------------------------------------- Install signal handlers |
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&status('Forked children'); |
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$SIG{CHLD} = \&REAPER; |
$SIG{CHLD} = \&REAPER; |
$SIG{INT} = $SIG{TERM} = \&HUNTSMAN; |
$SIG{INT} = $SIG{TERM} = \&HUNTSMAN; |
$SIG{HUP} = \&HUPSMAN; |
$SIG{HUP} = \&HUPSMAN; |
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$SIG{USR1} = \&checkchildren; |
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# And maintain the population. |
# And maintain the population. |
while (1) { |
while (1) { |
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&status('Sleeping'); |
sleep; # wait for a signal (i.e., child's death) |
sleep; # wait for a signal (i.e., child's death) |
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&logthis('Woke up'); |
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&status('Woke up'); |
for ($i = $children; $i < $PREFORK; $i++) { |
for ($i = $children; $i < $PREFORK; $i++) { |
make_new_child(); # top up the child pool |
make_new_child(); # top up the child pool |
} |
} |
Line 343 sub make_new_child {
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Line 396 sub make_new_child {
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or die "Can't unblock SIGINT for fork: $!\n"; |
or die "Can't unblock SIGINT for fork: $!\n"; |
$children{$pid} = 1; |
$children{$pid} = 1; |
$children++; |
$children++; |
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&status('Started child '.$pid); |
return; |
return; |
} 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 |
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$SIG{USR1}= \&logstatus; |
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$lastlog='Forked '; |
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$status='Forked'; |
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# unblock signals |
# unblock signals |
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"; |
Line 356 sub make_new_child {
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Line 413 sub make_new_child {
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# handle connections until we've reached $MAX_CLIENTS_PER_CHILD |
# handle connections until we've reached $MAX_CLIENTS_PER_CHILD |
for ($i=0; $i < $MAX_CLIENTS_PER_CHILD; $i++) { |
for ($i=0; $i < $MAX_CLIENTS_PER_CHILD; $i++) { |
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&status('Idle, waiting for connection'); |
$client = $server->accept() or last; |
$client = $server->accept() or last; |
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&status('Accepted connection'); |
# ============================================================================= |
# ============================================================================= |
# do something with the connection |
# do something with the connection |
# ----------------------------------------------------------------------------- |
# ----------------------------------------------------------------------------- |
Line 369 sub make_new_child {
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Line 427 sub make_new_child {
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&logthis( |
&logthis( |
"<font color=yellow>INFO: Connection $i, $clientip ($hostid{$clientip})</font>" |
"<font color=yellow>INFO: Connection $i, $clientip ($hostid{$clientip})</font>" |
); |
); |
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&status("Connecting $clientip ($hostid{$clientip})"); |
my $clientok; |
my $clientok; |
if ($clientrec) { |
if ($clientrec) { |
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&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 eq 'init') { |
my $challenge="$$".time; |
my $challenge="$$".time; |
print $client "$challenge\n"; |
print $client "$challenge\n"; |
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&status( |
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"Waiting for challenge reply from $clientip ($hostid{$clientip})"); |
$remotereq=<$client>; |
$remotereq=<$client>; |
$remotereq=~s/\W//g; |
$remotereq=~s/\W//g; |
if ($challenge eq $remotereq) { |
if ($challenge eq $remotereq) { |
Line 385 sub make_new_child {
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Line 447 sub make_new_child {
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&logthis( |
&logthis( |
"<font color=blue>WARNING: $clientip did not reply challenge</font>"); |
"<font color=blue>WARNING: $clientip did not reply challenge</font>"); |
print $client "bye\n"; |
print $client "bye\n"; |
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&status('No challenge reply '.$clientip); |
} |
} |
} else { |
} else { |
&logthis( |
&logthis( |
"<font color=blue>WARNING: " |
"<font color=blue>WARNING: " |
."$clientip failed to initialize: >$remotereq< </font>"); |
."$clientip failed to initialize: >$remotereq< </font>"); |
print $client "bye\n"; |
print $client "bye\n"; |
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&status('No init '.$clientip); |
} |
} |
} else { |
} else { |
&logthis( |
&logthis( |
"<font color=blue>WARNING: Unknown client $clientip</font>"); |
"<font color=blue>WARNING: Unknown client $clientip</font>"); |
print $client "bye\n"; |
print $client "bye\n"; |
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&status('Hung up on '.$clientip); |
} |
} |
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{$clientip}"); |
&reconlonc("$perlvar{'lonSockDir'}/$hostid{$clientip}"); |
&logthis( |
&logthis( |
"<font color=green>Established connection: $hostid{$clientip}</font>"); |
"<font color=green>Established connection: $hostid{$clientip}</font>"); |
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&status('Will listen to '.$hostid{$clientip}); |
# ------------------------------------------------------------ Process requests |
# ------------------------------------------------------------ Process requests |
while (my $userinput=<$client>) { |
while (my $userinput=<$client>) { |
chomp($userinput); |
chomp($userinput); |
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&status('Processing '.$hostid{$clientip}.': '.$userinput); |
my $wasenc=0; |
my $wasenc=0; |
# ------------------------------------------------------------ See if encrypted |
# ------------------------------------------------------------ See if encrypted |
if ($userinput =~ /^enc/) { |
if ($userinput =~ /^enc/) { |
Line 453 sub make_new_child {
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Line 520 sub make_new_child {
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$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"; |
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# ----------------------------------------------------------------- currentauth |
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} elsif ($userinput =~ /^currentauth/) { |
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if ($wasenc==1) { |
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my ($cmd,$udom,$uname)=split(/:/,$userinput); |
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my $proname=propath($udom,$uname); |
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my $passfilename="$proname/passwd"; |
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if (-e $passfilename) { |
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my $pf = IO::File->new($passfilename); |
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my $realpasswd=<$pf>; |
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chomp($realpasswd); |
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my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
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my $availablecontent=''; |
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if ($howpwd eq 'krb4') { |
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$availablecontent=$contentpwd; |
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} |
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print $client "$howpwd:$availablecontent\n"; |
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} else { |
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print $client "unknown_user\n"; |
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} |
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} else { |
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print $client "refused\n"; |
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} |
# ------------------------------------------------------------------------ auth |
# ------------------------------------------------------------------------ auth |
} elsif ($userinput =~ /^auth/) { |
} elsif ($userinput =~ /^auth/) { |
if ($wasenc==1) { |
if ($wasenc==1) { |
Line 542 sub make_new_child {
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Line 631 sub make_new_child {
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} |
} |
# -------------------------------------------------------------------- makeuser |
# -------------------------------------------------------------------- makeuser |
} elsif ($userinput =~ /^makeuser/) { |
} elsif ($userinput =~ /^makeuser/) { |
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my $oldumask=umask(0077); |
if ($wasenc==1) { |
if ($wasenc==1) { |
my |
my |
($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput); |
($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput); |
Line 591 sub make_new_child {
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Line 681 sub make_new_child {
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{ |
{ |
my $execpath="$perlvar{'lonDaemons'}/". |
my $execpath="$perlvar{'lonDaemons'}/". |
"lcuseradd"; |
"lcuseradd"; |
my $se = IO::File->new("|$execpath"); |
{ |
print $se "$uname\n"; |
my $se = IO::File->new("|$execpath"); |
print $se "$npass\n"; |
print $se "$uname\n"; |
print $se "$npass\n"; |
print $se "$npass\n"; |
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print $se "$npass\n"; |
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} |
my $pf = IO::File->new(">$passfilename"); |
my $pf = IO::File->new(">$passfilename"); |
print $pf "unix:\n"; |
print $pf "unix:\n"; |
} |
} |
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print $client "ok\n"; |
} elsif ($umode eq 'none') { |
} elsif ($umode eq 'none') { |
{ |
{ |
my $pf = IO::File->new(">$passfilename"); |
my $pf = IO::File->new(">$passfilename"); |
Line 614 sub make_new_child {
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Line 707 sub make_new_child {
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} else { |
} else { |
print $client "refused\n"; |
print $client "refused\n"; |
} |
} |
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umask($oldumask); |
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# -------------------------------------------------------------- changeuserauth |
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} elsif ($userinput =~ /^changeuserauth/) { |
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if ($wasenc==1) { |
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my |
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($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput); |
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chomp($npass); |
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$npass=&unescape($npass); |
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my $proname=propath($udom,$uname); |
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my $passfilename="$proname/passwd"; |
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if ($udom ne $perlvar{'lonDefDomain'}) { |
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print $client "not_right_domain\n"; |
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} else { |
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if ($umode eq 'krb4') { |
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{ |
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my $pf = IO::File->new(">$passfilename"); |
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print $pf "krb4:$npass\n"; |
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} |
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print $client "ok\n"; |
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} elsif ($umode eq 'internal') { |
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my $salt=time; |
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$salt=substr($salt,6,2); |
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my $ncpass=crypt($npass,$salt); |
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{ |
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my $pf = IO::File->new(">$passfilename"); |
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print $pf "internal:$ncpass\n"; |
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} |
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print $client "ok\n"; |
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} elsif ($umode eq 'localauth') { |
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{ |
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my $pf = IO::File->new(">$passfilename"); |
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print $pf "localauth:$npass\n"; |
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} |
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print $client "ok\n"; |
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} elsif ($umode eq 'unix') { |
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{ |
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my $execpath="$perlvar{'lonDaemons'}/". |
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"lcuseradd"; |
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{ |
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my $se = IO::File->new("|$execpath"); |
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print $se "$uname\n"; |
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print $se "$npass\n"; |
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print $se "$npass\n"; |
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} |
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my $pf = IO::File->new(">$passfilename"); |
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print $pf "unix:\n"; |
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} |
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print $client "ok\n"; |
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} elsif ($umode eq 'none') { |
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{ |
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my $pf = IO::File->new(">$passfilename"); |
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print $pf "none:\n"; |
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} |
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print $client "ok\n"; |
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} else { |
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print $client "auth_mode_error\n"; |
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} |
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} |
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} else { |
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print $client "refused\n"; |
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} |
# ------------------------------------------------------------------------ home |
# ------------------------------------------------------------------------ home |
} elsif ($userinput =~ /^home/) { |
} elsif ($userinput =~ /^home/) { |
my ($cmd,$udom,$uname)=split(/:/,$userinput); |
my ($cmd,$udom,$uname)=split(/:/,$userinput); |
Line 1146 sub make_new_child {
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Line 1300 sub make_new_child {
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# unknown command |
# unknown command |
print $client "unknown_cmd\n"; |
print $client "unknown_cmd\n"; |
} |
} |
# ------------------------------------------------------ client unknown, refuse |
# -------------------------------------------------------------------- complete |
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&status('Listening to '.$hostid{$clientip}); |
} |
} |
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# ------------------------------------------------------ client unknown, refuse |
} else { |
} else { |
print $client "refused\n"; |
print $client "refused\n"; |
&logthis("<font color=blue>WARNING: " |
&logthis("<font color=blue>WARNING: " |