--- loncom/lond	2006/01/31 04:26:41	1.309
+++ loncom/lond	2006/01/31 04:40:12	1.310
@@ -2,7 +2,7 @@
 # The LearningOnline Network
 # lond "LON Daemon" Server (port "LOND" 5663)
 #
-# $Id: lond,v 1.309 2006/01/31 04:26:41 albertel Exp $
+# $Id: lond,v 1.310 2006/01/31 04:40:12 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -59,7 +59,7 @@ my $DEBUG = 0;		       # Non zero to ena
 my $status='';
 my $lastlog='';
 
-my $VERSION='$Revision: 1.309 $'; #' stupid emacs
+my $VERSION='$Revision: 1.310 $'; #' stupid emacs
 my $remoteVERSION;
 my $currenthostid="default";
 my $currentdomainid;
@@ -5623,38 +5623,38 @@ sub addline {
 
 sub get_chat {
     my ($cdom,$cname,$udom,$uname)=@_;
-    my %hash;
-    my $proname=&propath($cdom,$cname);
+
     my @entries=();
-    if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db",
-	    &GDBM_READER(),0640)) {
-	@entries=map { $_.':'.$hash{$_} } sort keys %hash;
-	untie %hash;
+    my $hashref = &tie_user_hash($cdom, $cname, 'nohist_chatroom',
+				 &GDBM_READER());
+    if ($hashref) {
+	@entries=map { $_.':'.$hashref->{$_} } sort(keys(%$hashref));
+	untie(%$hashref);
     }
     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:'.$_;
+    $hashref = &tie_user_hash($cdom, $cname, 'nohist_inchatroom',
+			      &GDBM_WRCREAT());
+    if ($hashref) {
+        $hashref->{$uname.':'.$udom}=time;
+        foreach my $user (sort(keys(%$hashref))) {
+	    if ($hashref->{$user}>$cutoff) {
+		push(@participants, 'active_participant:'.$user);
             }
         }
-        untie %hash;
+        untie(%$hashref);
     }
     return (@participants,@entries);
 }
 
 sub chat_add {
     my ($cdom,$cname,$newchat)=@_;
-    my %hash;
-    my $proname=&propath($cdom,$cname);
     my @entries=();
     my $time=time;
-    if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db",
-	    &GDBM_WRCREAT(),0640)) {
-	@entries=map { $_.':'.$hash{$_} } sort keys %hash;
+    my $hashref = &tie_user_hash($cdom, $cname, 'nohist_chatroom',
+				 &GDBM_WRCREAT());
+    if ($hashref) {
+	@entries=map { $_.':'.$hashref->{$_} } sort(keys(%$hashref));
 	my ($lastid)=($entries[$#entries]=~/^(\w+)\:/);
 	my ($thentime,$idnum)=split(/\_/,$lastid);
 	my $newid=$time.'_000000';
@@ -5664,21 +5664,22 @@ sub chat_add {
 	    $idnum=substr('000000'.$idnum,-6,6);
 	    $newid=$time.'_'.$idnum;
 	}
-	$hash{$newid}=$newchat;
+	$hashref->{$newid}=$newchat;
 	my $expired=$time-3600;
-	foreach (keys %hash) {
-	    my ($thistime)=($_=~/(\d+)\_/);
+	foreach my $comment (keys(%$hashref)) {
+	    my ($thistime) = ($comment=~/(\d+)\_/);
 	    if ($thistime<$expired) {
-		delete $hash{$_};
+		delete $hashref->{$comment};
 	    }
 	}
-	untie %hash;
-    }
-    {
-	my $hfh;
-	if ($hfh=IO::File->new(">>$proname/chatroom.log")) { 
-	    print $hfh "$time:".&unescape($newchat)."\n";
+	{
+	    my $proname=&propath($cdom,$cname);
+	    if (open(CHATLOG,">>$proname/chatroom.log")) { 
+		print CHATLOG ("$time:".&unescape($newchat)."\n");
+	    }
+	    close(CHATLOG);
 	}
+	untie(%$hashref);
     }
 }