--- loncom/lonnet/perl/lonnet.pm 2006/09/05 20:42:15 1.778
+++ loncom/lonnet/perl/lonnet.pm 2006/09/28 18:23:32 1.782.2.2
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.778 2006/09/05 20:42:15 albertel Exp $
+# $Id: lonnet.pm,v 1.782.2.2 2006/09/28 18:23:32 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -293,8 +293,10 @@ sub error {
}
# ------------------------------------------- Transfer profile into environment
-
+my $env_loaded;
sub transfer_profile_to_env {
+ if ($env_loaded) { return; }
+
my ($lonidsdir,$handle)=@_;
if (!defined($lonidsdir)) {
$lonidsdir = $perlvar{'lonIDsDir'};
@@ -325,6 +327,7 @@ sub transfer_profile_to_env {
}
}
$env{'user.environment'} = "$lonidsdir/$handle.id";
+ $env_loaded=1;
foreach my $expired_key (keys(%Remove)) {
&delenv($expired_key);
}
@@ -344,6 +347,11 @@ sub appenv {
$env{$key}=$newenv{$key};
}
}
+ foreach my $key (keys(%newenv)) {
+ my $value = &escape($newenv{$key});
+ delete($newenv{$key});
+ $newenv{&escape($key)}=$value;
+ }
my $lockfh;
unless (open($lockfh,"$env{'user.environment'}")) {
@@ -369,8 +377,6 @@ sub appenv {
chomp($oldenv[$i]);
if ($oldenv[$i] ne '') {
my ($name,$value)=split(/=/,$oldenv[$i],2);
- $name=&unescape($name);
- $value=&unescape($value);
unless (defined($newenv{$name})) {
$newenv{$name}=$value;
}
@@ -383,7 +389,7 @@ sub appenv {
}
my $newname;
foreach $newname (keys %newenv) {
- print $fh &escape($newname).'='.&escape($newenv{$newname})."\n";
+ print $fh $newname.'='.$newenv{$newname}."\n";
}
close($fh);
}
@@ -493,41 +499,60 @@ sub overloaderror {
sub spareserver {
my ($loadpercent,$userloadpercent,$want_server_name) = @_;
- my $tryserver;
- my $spareserver='';
+ my $spare_server;
if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
- my $lowestserver=$loadpercent > $userloadpercent?
- $loadpercent : $userloadpercent;
- foreach $tryserver (keys(%spareid)) {
- my $loadans=&reply('load',$tryserver);
- my $userloadans=&reply('userload',$tryserver);
- if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
- next; #didn't get a number from the server
- }
- my $answer;
- if ($loadans =~ /\d/) {
- if ($userloadans =~ /\d/) {
- #both are numbers, pick the bigger one
- $answer=$loadans > $userloadans?
- $loadans : $userloadans;
- } else {
- $answer = $loadans;
- }
- } else {
- $answer = $userloadans;
- }
- if (($answer =~ /\d/) && ($answer<$lowestserver)) {
- if ($want_server_name) {
- $spareserver=$tryserver;
- } else {
- $spareserver="http://$hostname{$tryserver}";
- }
- $lowestserver=$answer;
+ my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
+ : $userloadpercent;
+
+ foreach my $try_server (@{ $spareid{'primary'} }) {
+ ($spare_server, $lowest_load) =
+ &compare_server_load($try_server, $spare_server, $lowest_load);
+ }
+
+ my $found_server = ($spare_server ne '' && $lowest_load < 100);
+
+ if (!$found_server) {
+ foreach my $try_server (@{ $spareid{'default'} }) {
+ ($spare_server, $lowest_load) =
+ &compare_server_load($try_server, $spare_server, $lowest_load);
}
}
- return $spareserver;
+
+ if (!$want_server_name) {
+ $spare_server="http://$hostname{$spare_server}";
+ }
+ return $spare_server;
}
+sub compare_server_load {
+ my ($try_server, $spare_server, $lowest_load) = @_;
+
+ my $loadans = &reply('load', $try_server);
+ my $userloadans = &reply('userload',$try_server);
+
+ if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
+ next; #didn't get a number from the server
+ }
+
+ my $load;
+ if ($loadans =~ /\d/) {
+ if ($userloadans =~ /\d/) {
+ #both are numbers, pick the bigger one
+ $load = ($loadans > $userloadans) ? $loadans
+ : $userloadans;
+ } else {
+ $load = $loadans;
+ }
+ } else {
+ $load = $userloadans;
+ }
+
+ if (($load =~ /\d/) && ($load < $lowest_load)) {
+ $spare_server = $try_server;
+ $lowest_load = $load;
+ }
+ return ($spare_server,$lowest_load);
+}
# --------------------------------------------- Try to change a user's password
sub changepass {
@@ -891,6 +916,7 @@ sub save_cache {
&purge_remembered();
#&Apache::loncommon::validate_page();
undef(%env);
+ undef($env_loaded);
}
my $to_remember=-1;
@@ -1184,6 +1210,15 @@ sub ssi_body {
# --------------------------------------------------------- Server Side Include
+sub absolute_url {
+ my ($host_name) = @_;
+ my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
+ if ($host_name eq '') {
+ $host_name = $ENV{'SERVER_NAME'};
+ }
+ return $protocol.$host_name;
+}
+
sub ssi {
my ($fn,%form)=@_;
@@ -1195,10 +1230,10 @@ sub ssi {
$form{'no_update_last_known'}=1;
if (%form) {
- $request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn);
+ $request=new HTTP::Request('POST',&absolute_url().$fn);
$request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form));
} else {
- $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn);
+ $request=new HTTP::Request('GET',&absolute_url().$fn);
}
$request->header(Cookie => $ENV{'HTTP_COOKIE'});
@@ -7110,29 +7145,8 @@ BEGIN {
# ----------------------------------- Read loncapa.conf and loncapa_apache.conf
unless ($readit) {
{
- # FIXME: Use LONCAPA::Configuration::read_conf here and omit next block
- open(my $config,"</etc/httpd/conf/loncapa.conf");
-
- while (my $configline=<$config>) {
- if ($configline=~/\S/ && $configline =~ /^[^\#]*PerlSetVar/) {
- my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
- chomp($varvalue);
- $perlvar{$varname}=$varvalue;
- }
- }
- close($config);
-}
-{
- open(my $config,"</etc/httpd/conf/loncapa_apache.conf");
-
- while (my $configline=<$config>) {
- if ($configline =~ /^[^\#]*PerlSetVar/) {
- my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
- chomp($varvalue);
- $perlvar{$varname}=$varvalue;
- }
- }
- close($config);
+ my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
+ %perlvar = (%perlvar,%{$configvars});
}
# ------------------------------------------------------------ Read domain file
@@ -7214,7 +7228,9 @@ sub get_iphost {
while (my $configline=<$config>) {
chomp($configline);
if ($configline) {
- $spareid{$configline}=1;
+ my ($host,$type) = split(':',$configline,2);
+ if (!defined($type) || $type eq '') { $type = 'default' };
+ push(@{ $spareid{$type} }, $host);
}
}
close($config);