--- loncom/lond	2011/06/12 00:08:01	1.467.2.4
+++ loncom/lond	2011/08/02 03:11:35	1.479
@@ -2,7 +2,7 @@
 # The LearningOnline Network
 # lond "LON Daemon" Server (port "LOND" 5663)
 #
-# $Id: lond,v 1.467.2.4 2011/06/12 00:08:01 raeburn Exp $
+# $Id: lond,v 1.479 2011/08/02 03:11:35 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -15,6 +15,7 @@
 #
 # 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.
 #
@@ -59,7 +60,7 @@ my $DEBUG = 0;		       # Non zero to ena
 my $status='';
 my $lastlog='';
 
-my $VERSION='$Revision: 1.467.2.4 $'; #' stupid emacs
+my $VERSION='$Revision: 1.479 $'; #' stupid emacs
 my $remoteVERSION;
 my $currenthostid="default";
 my $currentdomainid;
@@ -600,8 +601,8 @@ sub InstallFile {
 #
 #   ConfigFileFromSelector: converts a configuration file selector
 #                 into a configuration file pathname.
-#                 Supports the following file selectors:
-#                 hosts, domain, dns_hosts, dns_domain
+#                 Supports the following file selectors: 
+#                 hosts, domain, dns_hosts, dns_domain  
 #
 #
 #  Parameters:
@@ -614,12 +615,11 @@ sub ConfigFileFromSelector {
     my $tablefile;
 
     my $tabledir = $perlvar{'lonTabDir'}.'/';
-    if (($selector eq "hosts") || ($selector eq "domain") ||
+    if (($selector eq "hosts") || ($selector eq "domain") || 
         ($selector eq "dns_hosts") || ($selector eq "dns_domain")) {
-        $tablefile =  $tabledir.$selector.'.tab';
+	$tablefile =  $tabledir.$selector.'.tab';
     }
     return $tablefile;
-
 }
 #
 #   PushFile:  Called to do an administrative push of a file.
@@ -646,7 +646,7 @@ sub PushFile {
     #   hosts.tab  ($filename eq host).
     #   domain.tab ($filename eq domain).
     #   dns_hosts.tab ($filename eq dns_host).
-    #   dns_domain.tab ($filename eq dns_domain).
+    #   dns_domain.tab ($filename eq dns_domain). 
     # Construct the destination filename or reject the request.
     #
     # lonManage is supposed to ensure this, however this session could be
@@ -677,8 +677,8 @@ sub PushFile {
 	 .$tablefile." $! </font>");
 	return "error:$!";
     } else {
-        &logthis('<font color="green"> Installed new '.$tablefile
-                 ." - transaction by: $clientname ($clientip)</font>");
+	&logthis('<font color="green"> Installed new '.$tablefile
+		 ." - transaction by: $clientname ($clientip)</font>");
         my $adminmail = $perlvar{'lonAdmEMail'};
         my $admindom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
         if ($admindom ne '') {
@@ -1641,6 +1641,46 @@ sub ls3_handler {
 }
 &register_handler("ls3", \&ls3_handler, 0, 1, 0);
 
+sub read_lonnet_global {
+    my ($cmd,$tail,$client) = @_;
+    my $userinput = "$cmd:$tail";
+    my $requested = &Apache::lonnet::thaw_unescape($tail);
+    my $result;
+    if (ref($requested) eq 'HASH') {
+        foreach my $what (keys(%{$requested})) {
+            my $type = $requested->{$what};
+            my $lonnetglobal = 'Apache::lonnet::'.$what;
+            my $response;
+            if ($type eq 'HASH') {
+                if (defined(%{$lonnetglobal})) {
+                    my $hashref = \%{$lonnetglobal};
+                    $response = &Apache::lonnet::freeze_escape($hashref);
+                }
+            } else {
+                if (defined(${$lonnetglobal})) {
+                    $response = &escape(${$lonnetglobal});
+                }
+            }
+            $result .= &escape($what).'='.$response.'&';
+        }
+    }
+    $result =~ s/\&$//;
+    &Reply($client,\$result,$userinput);
+    return 1;
+}
+&register_handler("readlonnetglobal", \&read_lonnet_global, 0, 1, 0);
+
+sub server_devalidatecache_handler {
+    my ($cmd,$tail,$client) = @_;
+    my $userinput = "$cmd:$tail";
+    my ($name,$id) = map { &unescape($_); } split(/:/,$tail);
+    &Apache::lonnet::devalidate_cache_new($name,$id);
+    my $result = 'ok';
+    &Reply($client,\$result,$userinput);
+    return 1;
+}
+&register_handler("devalidatecache", \&devalidatecache_handler, 0, 1, 0);
+
 sub server_timezone_handler {
     my ($cmd,$tail,$client) = @_;
     my $userinput = "$cmd:$tail";
@@ -2278,7 +2318,9 @@ sub fetch_user_file_handler {
 
 	my $destname=$udir.'/'.$ufile;
 	my $transname=$udir.'/'.$ufile.'.in.transit';
-	my $remoteurl='http://'.$clientip.'/userfiles/'.$fname;
+        my $clientprotocol=$Apache::lonnet::protocol{$clientname};
+        $clientprotocol = 'http' if ($clientprotocol ne 'https');
+	my $remoteurl=$clientprotocol.'://'.$clientip.'/userfiles/'.$fname;
 	my $response;
 	Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname");
 	alarm(120);
@@ -5038,7 +5080,7 @@ sub validate_course_owner_handler {
     my ($cmd, $tail, $client)  = @_;
     my $userinput = "$cmd:$tail";
     my ($inst_course_id, $owner, $cdom, $coowners) = split(/:/, $tail);
-
+    
     $owner = &unescape($owner);
     $coowners = &unescape($coowners);
     my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom,$coowners);
@@ -6029,7 +6071,7 @@ if (-e $pidfile) {
 $server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},
                                 Type      => SOCK_STREAM,
                                 Proto     => 'tcp',
-                                ReuseAddr => 1,
+                                ReuseAddr     => 1,
                                 Listen    => 10 )
   or die "making socket: $@\n";
 
@@ -6092,6 +6134,7 @@ sub HUPSMAN {                      # sig
 #  a setuid perl script that can be root for us to do this job.
 #
 sub ReloadApache {
+# --------------------------- Handle case of another apachereload process (locking)
     if (&LONCAPA::try_to_lock('/tmp/lock_apachereload')) {
         my $execdir = $perlvar{'lonDaemons'};
         my $script  = $execdir."/apachereload";
@@ -6436,13 +6479,12 @@ sub make_new_child {
                                 #don't get intercepted
         $SIG{USR1}= \&logstatus;
         $SIG{ALRM}= \&timeout;
-
-        #
-        # Block sigpipe as it gets thrownon socket disconnect and we want to
-        # deal with that as a read faiure instead.
-        #
-        my $blockset = POSIX::SigSet->new(SIGPIPE);
-        sigprocmask(SIG_BLOCK, $blockset);
+	#
+	# Block sigpipe as it gets thrownon socket disconnect and we want to 
+	# deal with that as a read faiure instead.
+	#
+	my $blockset = POSIX::SigSet->new(SIGPIPE);
+	sigprocmask(SIG_BLOCK, $blockset);
 
         $lastlog='Forked ';
         $status='Forked';
@@ -7167,7 +7209,9 @@ sub subscribe {
                 # the metadata
 		unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); }
 		$fname=~s/\/home\/httpd\/html\/res/raw/;
-		$fname="http://".&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname;
+                my $protocol = $Apache::lonnet::protocol{$perlvar{'lonHostID'}};
+                $protocol = 'http' if ($protocol ne 'https');
+		$fname=$protocol.'://'.&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname;
 		$result="$fname\n";
 	    }
 	} else {