--- loncom/lond	2006/11/27 16:34:38	1.350
+++ loncom/lond	2007/03/28 22:46:44	1.367
@@ -2,7 +2,7 @@
 # The LearningOnline Network
 # lond "LON Daemon" Server (port "LOND" 5663)
 #
-# $Id: lond,v 1.350 2006/11/27 16:34:38 albertel Exp $
+# $Id: lond,v 1.367 2007/03/28 22:46:44 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -33,6 +33,7 @@ use strict;
 use lib '/home/httpd/lib/perl/';
 use LONCAPA;
 use LONCAPA::Configuration;
+use Apache::lonnet;
 
 use IO::Socket;
 use IO::File;
@@ -44,13 +45,11 @@ use Digest::MD5 qw(md5_hex);
 use GDBM_File;
 use Authen::Krb4;
 use Authen::Krb5;
-use lib '/home/httpd/lib/perl/';
 use localauth;
 use localenroll;
 use localstudentphoto;
 use File::Copy;
 use File::Find;
-use LONCAPA::ConfigFileEdit;
 use LONCAPA::lonlocal;
 use LONCAPA::lonssl;
 use Fcntl qw(:flock);
@@ -60,7 +59,7 @@ my $DEBUG = 0;		       # Non zero to ena
 my $status='';
 my $lastlog='';
 
-my $VERSION='$Revision: 1.350 $'; #' stupid emacs
+my $VERSION='$Revision: 1.367 $'; #' stupid emacs
 my $remoteVERSION;
 my $currenthostid="default";
 my $currentdomainid;
@@ -504,30 +503,30 @@ sub AdjustHostContents {
     my $adjusted;
     my $me        = $perlvar{'lonHostID'};
 
- foreach my $line (split(/\n/,$contents)) {
+    foreach my $line (split(/\n/,$contents)) {
 	if(!(($line eq "") || ($line =~ /^ *\#/) || ($line =~ /^ *$/))) {
 	    chomp($line);
 	    my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line);
 	    if ($id eq $me) {
-          my $ip = gethostbyname($name);
-          my $ipnew = inet_ntoa($ip);
-         $ip = $ipnew;
+		my $ip = gethostbyname($name);
+		my $ipnew = inet_ntoa($ip);
+		$ip = $ipnew;
 		#  Reconstruct the host line and append to adjusted:
 		
-		   my $newline = "$id:$domain:$role:$name:$ip";
-		   if($maxcon ne "") { # Not all hosts have loncnew tuning params
-		     $newline .= ":$maxcon:$idleto:$mincon";
-		   }
-		   $adjusted .= $newline."\n";
+		my $newline = "$id:$domain:$role:$name:$ip";
+		if($maxcon ne "") { # Not all hosts have loncnew tuning params
+		    $newline .= ":$maxcon:$idleto:$mincon";
+		}
+		$adjusted .= $newline."\n";
 		
-      } else {		# Not me, pass unmodified.
-		   $adjusted .= $line."\n";
-      }
+	    } else {		# Not me, pass unmodified.
+		$adjusted .= $line."\n";
+	    }
 	} else {                  # Blank or comment never re-written.
 	    $adjusted .= $line."\n";	# Pass blanks and comments as is.
 	}
- }
- return $adjusted;
+    }
+    return $adjusted;
 }
 #
 #   InstallFile: Called to install an administrative file:
@@ -1033,7 +1032,7 @@ sub ping_handler {
 sub pong_handler {
     my ($cmd, $tail, $replyfd) = @_;
 
-    my $reply=&reply("ping",$clientname);
+    my $reply=&Apache::lonnet::reply("ping",$clientname);
     &Reply( $replyfd, "$currenthostid:$reply\n", "$cmd:$tail"); 
     return 1;
 }
@@ -1143,7 +1142,7 @@ sub load_handler {
 sub user_load_handler {
     my ($cmd, $tail, $replyfd) = @_;
 
-    my $userloadpercent=&userload();
+    my $userloadpercent=&Apache::lonnet::userload();
     &Reply($replyfd, "$userloadpercent\n", "$cmd:$tail");
     
     return 1;
@@ -1269,6 +1268,7 @@ sub du_handler {
 	my $code=sub { 
 	    if ($_=~/\.\d+\./) { return;} 
 	    if ($_=~/\.meta$/) { return;}
+	    if (-d $_)         { return;}
 	    $total_size+=(stat($_))[7];
 	};
 	chdir($ududir);
@@ -1850,13 +1850,13 @@ sub update_resource_handler {
 	    my $now=time;
 	    my $since=$now-$atime;
 	    if ($since>$perlvar{'lonExpire'}) {
-		my $reply=&reply("unsub:$fname","$clientname");
+		my $reply=&Apache::lonnet::reply("unsub:$fname","$clientname");
 		&devalidate_meta_cache($fname);
 		unlink("$fname");
 		unlink("$fname.meta");
 	    } else {
 		my $transname="$fname.in.transfer";
-		my $remoteurl=&reply("sub:$fname","$clientname");
+		my $remoteurl=&Apache::lonnet::reply("sub:$fname","$clientname");
 		my $response;
 		alarm(120);
 		{
@@ -1901,22 +1901,12 @@ sub devalidate_meta_cache {
     my ($url) = @_;
     use Cache::Memcached;
     my $memcache = new Cache::Memcached({'servers'=>['127.0.0.1:11211']});
-    $url = &declutter($url);
+    $url = &Apache::lonnet::declutter($url);
     $url =~ s-\.meta$--;
     my $id = &escape('meta:'.$url);
     $memcache->delete($id);
 }
 
-sub declutter {
-    my $thisfn=shift;
-    $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
-    $thisfn=~s/^\///;
-    $thisfn=~s|^adm/wrapper/||;
-    $thisfn=~s|^adm/coursedocs/showdoc/||;
-    $thisfn=~s/^res\///;
-    $thisfn=~s/\?.+$//;
-    return $thisfn;
-}
 #
 #   Fetch a user file from a remote server to the user's home directory
 #   userfiles subdir.
@@ -3053,9 +3043,9 @@ sub restore_handler {
     my ($cmd, $tail, $client) = @_;
 
     my $userinput = "$cmd:$tail";	# Only used for logging purposes.
-    $namespace = &LONCAPA::clean_username($namespace);
     my ($udom,$uname,$namespace,$rid) = split(/:/,$tail);
     $namespace=~s/\//\_/g;
+    $namespace = &LONCAPA::clean_username($namespace);
 
     chomp($rid);
     my $qresult='';
@@ -3293,13 +3283,14 @@ sub put_course_id_handler {
 	foreach my $pair (@pairs) {
             my ($key,$courseinfo) = split(/=/,$pair,2);
             $courseinfo =~ s/=/:/g;
-
-            my @current_items = split(/:/,$hashref->{$key});
+            my @current_items = split(/:/,$hashref->{$key},-1);
             shift(@current_items); # remove description
             pop(@current_items);   # remove last access
             my $numcurrent = scalar(@current_items);
-
-            my @new_items = split(/:/,$courseinfo);
+            if ($numcurrent > 3) {
+                $numcurrent = 3;
+            }
+            my @new_items = split(/:/,$courseinfo,-1);
             my $numnew = scalar(@new_items);
             if ($numcurrent > 0) {
                 if ($numnew <= $numcurrent) { # flushcourselogs() from pre 2.2 
@@ -3599,7 +3590,7 @@ sub get_domain_handler {
 
     return 1;
 }
-&register_handler("getdom", \&get_id_handler, 0, 1, 0);
+&register_handler("getdom", \&get_domain_handler, 0, 1, 0);
 
 
 #
@@ -4451,10 +4442,10 @@ sub get_institutional_code_format_handle
 						    \%cat_titles,
 						    \%cat_order);
     if ($formatreply eq 'ok') {
-	my $codes_str = &hash2str(%codes);
-	my $codetitles_str = &array2str(@codetitles);
-	my $cat_titles_str = &hash2str(%cat_titles);
-	my $cat_order_str = &hash2str(%cat_order);
+	my $codes_str = &Apache::lonnet::hash2str(%codes);
+	my $codetitles_str = &Apache::lonnet::array2str(@codetitles);
+	my $cat_titles_str = &Apache::lonnet::hash2str(%cat_titles);
+	my $cat_order_str = &Apache::lonnet::hash2str(%cat_order);
 	&Reply($client,
 	       $codes_str.':'.$codetitles_str.':'.$cat_titles_str.':'
 	       .$cat_order_str."\n",
@@ -4630,6 +4621,31 @@ sub student_photo_handler {
 }
 &register_handler("studentphoto", \&student_photo_handler, 0, 1, 0);
 
+sub inst_usertypes_handler {
+    my ($cmd, $domain, $client) = @_;
+    my $res;
+    my $userinput = $cmd.":".$domain; # For logging purposes.
+    my (%typeshash,@order);  
+    if (&localenroll::inst_usertypes($domain,\%typeshash,\@order) eq 'ok') {
+        if (keys(%typeshash) > 0) {
+            foreach my $key (keys(%typeshash)) {
+                $res.=&escape($key).'='.&escape($typeshash{$key}).'&';
+            }
+        }
+        $res=~s/\&$//;
+        $res .= ':';
+        if (@order > 0) {
+            foreach my $item (@order) {
+                $res .= &escape($item).'&';
+            }
+        }
+        $res=~s/\&$//;
+    }
+    &Reply($client, "$res\n", $userinput);
+    return 1;
+}
+&register_handler("inst_usertypes", \&inst_usertypes_handler, 0, 1, 0);
+
 # mkpath makes all directories for a file, expects an absolute path with a
 # file or a trailing / if just a dir is passed
 # returns 1 on success 0 on failure
@@ -5261,63 +5277,6 @@ sub status {
     $0='lond: '.$what.' '.$local;
 }
 
-# ----------------------------------------------------------- Send USR1 to lonc
-
-sub reconlonc {
-    my $peerfile=shift;
-    &logthis("Trying to reconnect for $peerfile");
-    my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
-    if (my $fh=IO::File->new("$loncfile")) {
-	my $loncpid=<$fh>;
-        chomp($loncpid);
-        if (kill 0 => $loncpid) {
-	    &logthis("lonc at pid $loncpid responding, sending USR1");
-            kill USR1 => $loncpid;
-        } else {
-	    &logthis(
-              "<font color='red'>CRITICAL: "
-             ."lonc at pid $loncpid not responding, giving up</font>");
-        }
-    } else {
-      &logthis('<font color="red">CRITICAL: lonc not running, giving up</font>');
-    }
-}
-
-# -------------------------------------------------- Non-critical communication
-
-sub subreply {
-    my ($cmd,$server)=@_;
-    my $peerfile="$perlvar{'lonSockDir'}/".$hostname{$server};
-    my $sclient=IO::Socket::UNIX->new(Peer    =>"$peerfile",
-                                      Type    => SOCK_STREAM,
-                                      Timeout => 10)
-       or return "con_lost";
-    print $sclient "sethost:$server:$cmd\n";
-    my $answer=<$sclient>;
-    chomp($answer);
-    if (!$answer) { $answer="con_lost"; }
-    return $answer;
-}
-
-sub reply {
-  my ($cmd,$server)=@_;
-  my $answer;
-  if ($server ne $currenthostid) { 
-    $answer=subreply($cmd,$server);
-    if ($answer eq 'con_lost') {
-	$answer=subreply("ping",$server);
-        if ($answer ne $server) {
-	    &logthis("sub reply: answer != server answer is $answer, server is $server");
-           &reconlonc("$perlvar{'lonSockDir'}/".$hostname{$server});
-        }
-        $answer=subreply($cmd,$server);
-    }
-  } else {
-    $answer='self_reply';
-  } 
-  return $answer;
-}
-
 # -------------------------------------------------------------- Talk to lonsql
 
 sub sql_reply {
@@ -5466,8 +5425,8 @@ sub make_new_child {
 #        my $tmpsnum=0;            # Now global
 #---------------------------------------------------- kerberos 5 initialization
         &Authen::Krb5::init_context();
-	unless (($dist eq 'fedora5') || ($dist eq 'fedora4') 
-		|| ($dist eq 'suse9.3')) {
+	unless (($dist eq 'fedora5') || ($dist eq 'fedora4') ||  
+		($dist eq 'fedora6') || ($dist eq 'suse9.3')) {
 	    &Authen::Krb5::init_ets();
 	}
 
@@ -5597,13 +5556,9 @@ sub make_new_child {
 	if ($clientok) {
 # ---------------- New known client connecting, could mean machine online again
 	    
-	    foreach my $id (keys(%hostip)) {
-		if ($hostip{$id} ne $clientip ||
-		    $hostip{$currenthostid} eq $clientip) {
-		    # no need to try to do recon's to myself
-		    next;
-		}
-		&reconlonc("$perlvar{'lonSockDir'}/".$hostname{$id});
+	    if ($hostip{$currenthostid} ne $clientip 
+		&& $clientip ne '127.0.0.1') {
+		&Apache::lonnet::reconlonc();
 	    }
 	    &logthis("<font color='green'>Established connection: $clientname</font>");
 	    &status('Will listen to '.$clientname);
@@ -5880,7 +5835,8 @@ sub validate_user {
 		my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd;
 		my $krbserver  = &Authen::Krb5::parse_name($krbservice);
 		my $credentials= &Authen::Krb5::cc_default();
-		$credentials->initialize($krbclient);
+		$credentials->initialize(&Authen::Krb5::parse_name($user.'@'
+                                                                 .$contentpwd));
 		my $krbreturn  = &Authen::Krb5::get_in_tkt_with_password($krbclient,
 									 $krbserver,
 									 $password,
@@ -5893,7 +5849,12 @@ sub validate_user {
 	    #  Authenticate via installation specific authentcation method:
 	    $validated = &localauth::localauth($user, 
 					       $password, 
-					       $contentpwd);
+					       $contentpwd,
+					       $domain);
+	    if ($validated < 0) {
+		&logthis("localauth for $contentpwd $user:$domain returned a $validated");
+		$validated = 0;
+	    }
 	} else {			# Unrecognized auth is also bad.
 	    $validated = 0;
 	}
@@ -5919,8 +5880,7 @@ sub addline {
     my ($fname,$hostid,$ip,$newline)=@_;
     my $contents;
     my $found=0;
-    my $expr='^'.$hostid.':'.$ip.':';
-    $expr =~ s/\./\\\./g;
+    my $expr='^'.quotemeta($hostid).':'.quotemeta($ip).':';
     my $sh;
     if ($sh=IO::File->new("$fname.subscription")) {
 	while (my $subline=<$sh>) {
@@ -6299,96 +6259,6 @@ sub version {
     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 '.' || $filename eq '..') {next;}
-	    my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
-	    if ($curtime-$mtime < 1800) { $numusers++; }
-	}
-	closedir(LONIDS);
-    }
-    my $userloadpercent=0;
-    my $maxuserload=$perlvar{'lonUserLoadLim'};
-    if ($maxuserload) {
-	$userloadpercent=100*$numusers/$maxuserload;
-    }
-    $userloadpercent=sprintf("%.2f",$userloadpercent);
-    return $userloadpercent;
-}
-
-# Routines for serializing arrays and hashes (copies from lonnet)
-
-sub array2str {
-  my (@array) = @_;
-  my $result=&arrayref2str(\@array);
-  $result=~s/^__ARRAY_REF__//;
-  $result=~s/__END_ARRAY_REF__$//;
-  return $result;
-}
-                                                                                 
-sub arrayref2str {
-  my ($arrayref) = @_;
-  my $result='__ARRAY_REF__';
-  foreach my $elem (@$arrayref) {
-    if(ref($elem) eq 'ARRAY') {
-      $result.=&arrayref2str($elem).'&';
-    } elsif(ref($elem) eq 'HASH') {
-      $result.=&hashref2str($elem).'&';
-    } elsif(ref($elem)) {
-      #print("Got a ref of ".(ref($elem))." skipping.");
-    } else {
-      $result.=&escape($elem).'&';
-    }
-  }
-  $result=~s/\&$//;
-  $result .= '__END_ARRAY_REF__';
-  return $result;
-}
-                                                                                 
-sub hash2str {
-  my (%hash) = @_;
-  my $result=&hashref2str(\%hash);
-  $result=~s/^__HASH_REF__//;
-  $result=~s/__END_HASH_REF__$//;
-  return $result;
-}
-                                                                                 
-sub hashref2str {
-  my ($hashref)=@_;
-  my $result='__HASH_REF__';
-  foreach (sort(keys(%$hashref))) {
-    if (ref($_) eq 'ARRAY') {
-      $result.=&arrayref2str($_).'=';
-    } elsif (ref($_) eq 'HASH') {
-      $result.=&hashref2str($_).'=';
-    } elsif (ref($_)) {
-      $result.='=';
-      #print("Got a ref of ".(ref($_))." skipping.");
-    } else {
-        if ($_) {$result.=&escape($_).'=';} else { last; }
-    }
-
-    if(ref($hashref->{$_}) eq 'ARRAY') {
-      $result.=&arrayref2str($hashref->{$_}).'&';
-    } elsif(ref($hashref->{$_}) eq 'HASH') {
-      $result.=&hashref2str($hashref->{$_}).'&';
-    } elsif(ref($hashref->{$_})) {
-       $result.='&';
-      #print("Got a ref of ".(ref($hashref->{$_}))." skipping.");
-    } else {
-      $result.=&escape($hashref->{$_}).'&';
-    }
-  }
-  $result=~s/\&$//;
-  $result .= '__END_HASH_REF__';
-  return $result;
-}
 
 # ----------------------------------- POD (plain old documentation, CPAN style)