--- loncom/interface/lonmsg.pm	2006/06/12 22:55:23	1.185
+++ loncom/interface/lonmsg.pm	2006/12/06 23:44:33	1.189
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Routines for messaging
 #
-# $Id: lonmsg.pm,v 1.185 2006/06/12 22:55:23 albertel Exp $
+# $Id: lonmsg.pm,v 1.189 2006/12/06 23:44:33 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -33,8 +33,7 @@ use Apache::lonnet;
 use HTML::TokeParser();
 use Apache::lonlocal;
 use Mail::Send;
-use lib '/home/httpd/lib/perl/';
-use LONCAPA;
+use LONCAPA qw(:DEFAULT :match);
 
 {
     my $uniq;
@@ -210,12 +209,21 @@ sub unpackmsgid {
 
 sub sendemail {
     my ($to,$subject,$body)=@_;
+    my %senderemails=&Apache::loncommon::getemails();
+    my $senderaddress='';
+    foreach my $type ('notification','permanentemail','critnotification') {
+	if ($senderemails{$type}) {
+	    $senderaddress=$senderemails{$type};
+	}
+    }
     $body=
     "*** ".&mt('This is an automatic message generated by the LON-CAPA system.')."\n".
-    "*** ".&mt('Please do not reply to this address.')."\n\n".$body;
+    "*** ".($senderaddress?&mt('You can reply to this message'):&mt('Please do not reply to this address.')."\n*** ".
+	    &mt('A reply will not be received by the recipient!'))."\n\n".$body;
     my $msg = new Mail::Send;
     $msg->to($to);
     $msg->subject('[LON-CAPA] '.$subject);
+    if ($senderaddress) { $msg->add('Reply-to',$senderaddress); $msg->add('From',$senderaddress); }
     if (my $fh = $msg->open()) {
 	print $fh $body;
 	$fh->close;
@@ -299,7 +307,7 @@ sub author_res_msg {
 sub retrieve_author_res_msg {
     my $url=shift;
     $url=&Apache::lonnet::declutter($url);
-    my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
+    my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
     my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$domain,$author);
     my $msgs='';
     foreach (keys %errormsgs) {
@@ -319,7 +327,7 @@ sub retrieve_author_res_msg {
 sub del_url_author_res_msg {
     my $url=shift;
     $url=&Apache::lonnet::declutter($url);
-    my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
+    my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
     my @delmsgs=();
     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
 	if ($_=~/^\Q$url\E\_\d+$/) {
@@ -333,7 +341,7 @@ sub del_url_author_res_msg {
 sub clear_author_res_msg {
     my $url=shift;
     $url=&Apache::lonnet::declutter($url);
-    my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
+    my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
     my @delmsgs=();
     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
 	if ($_=~/^\Q$url\E/) {
@@ -390,9 +398,7 @@ sub user_crit_msg_raw {
        $status='no_host';
     }
 # Notifications
-    my %userenv = &Apache::lonnet::get('environment',['critnotification',
-                                                      'permanentemail'],
-                                       $domain,$user);
+    my %userenv = &Apache::loncommon::getemails($user,$domain);
     if ($userenv{'critnotification'}) {
       &sendnotification($userenv{'critnotification'},$user,$domain,$subject,1,
 			$text);
@@ -595,7 +601,31 @@ sub store_sent_mail {
 sub foldersuffix {
     my $folder=shift;
     unless ($folder) { return ''; }
-    return '_'.&escape($folder);
+    my $suffix;
+    my %folderhash = &get_user_folders($folder);
+    if (ref($folderhash{$folder}) eq 'HASH') {
+        $suffix = '_'.&escape($folderhash{$folder}{'id'});
+    } else {
+        $suffix = '_'.&escape($folder);
+    }
+    return $suffix;
+}
+
+# ========================================================= User-defined folders 
+
+sub get_user_folders {
+    my ($folder) = @_;
+    my %userfolders = 
+          &Apache::lonnet::dump('email_folders',undef,undef,$folder);
+    my $lock = "\0".'lock_counter'; # locks db while counter incremented
+    my $counter = "\0".'idcount';   # used in suffix for email db files
+    if (defined($userfolders{$lock})) {
+        delete($userfolders{$lock});
+    }
+    if (defined($userfolders{$counter})) {
+        delete($userfolders{$counter});
+    }
+    return %userfolders;
 }
 
 1;