--- loncom/interface/lonmsg.pm	2006/04/25 19:45:50	1.183
+++ loncom/interface/lonmsg.pm	2007/02/09 15:30:48	1.196
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Routines for messaging
 #
-# $Id: lonmsg.pm,v 1.183 2006/04/25 19:45:50 albertel Exp $
+# $Id: lonmsg.pm,v 1.196 2007/02/09 15:30:48 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -33,6 +33,7 @@ use Apache::lonnet;
 use HTML::TokeParser();
 use Apache::lonlocal;
 use Mail::Send;
+use LONCAPA qw(:DEFAULT :match);
 
 {
     my $uniq;
@@ -46,7 +47,7 @@ use Mail::Send;
 
 sub packagemsg {
     my ($subject,$message,$citation,$baseurl,$attachmenturl,
-	$recuser,$recdomain,$msgid,$type,$crsmsgid)=@_;
+	$recuser,$recdomain,$msgid,$type,$crsmsgid,$symb,$error)=@_;
     $message =&HTML::Entities::encode($message,'<>&"');
     $citation=&HTML::Entities::encode($citation,'<>&"');
     $subject =&HTML::Entities::encode($subject,'<>&"');
@@ -59,13 +60,13 @@ sub packagemsg {
     my $course_context;
     if (defined($env{'form.replyid'})) {
         my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid)=
-                   split(/\:/,&Apache::lonnet::unescape($env{'form.replyid'}));
+                   split(/\:/,&unescape($env{'form.replyid'}));
         $course_context = $origcid;
     }
     foreach my $key (keys(%env)) {
         if ($key=~/^form\.(rep)?rec\_(.*)$/) {
             my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid) =
-                                    split(/\:/,&Apache::lonnet::unescape($2));
+                                    split(/\:/,&unescape($2));
             $course_context = $origcid;
             last;
         }
@@ -77,7 +78,7 @@ sub packagemsg {
     my $msgcount = &get_uniq();
     unless(defined($msgid)) {
         $msgid = &buildmsgid($now,$subject,$env{'user.name'},$env{'user.domain'},
-                            $msgcount,$course_context,$$);
+                           $msgcount,$course_context,$symb,$error,$$);
     }
     my $result = '<sendername>'.$env{'user.name'}.'</sendername>'.
            '<senderdomain>'.$env{'user.domain'}.'</senderdomain>'.
@@ -108,8 +109,8 @@ sub packagemsg {
         for (my $i=0; $i<@{$recuser}; $i++) {
             if ($type eq 'dcmail') {
                 my ($username,$email) = split(/:/,$$recuser[$i]);
-                $username = &Apache::lonnet::unescape($username);
-                $email = &Apache::lonnet::unescape($email);
+                $username = &unescape($username);
+                $email = &unescape($email);
                 $username = &HTML::Entities::encode($username,'<>&"');
                 $email = &HTML::Entities::encode($email,'<>&"');
                 $result .= '<recipient username="'.$username.'">'.
@@ -133,7 +134,18 @@ sub packagemsg {
     if (defined($attachmenturl)) {
 	$result.= '<attachmenturl>'.$attachmenturl.'</attachmenturl>';
     }
-    return $msgid,$result;
+    if (defined($symb)) {
+        $result.= '<symb>'.$symb.'</symb>';
+        if (defined($course_context)) {
+            if ($course_context eq $env{'request.course.id'}) {
+                my $resource_title = &Apache::lonnet::gettitle($symb);
+                if (defined($resource_title)) {
+                    $result .= '<resource_title>'.$resource_title.'</resource_title>';
+                }
+            }
+        }
+    }
+    return ($msgid,$result);
 }
 
 # ================================================== Unpack message into a hash
@@ -177,19 +189,21 @@ sub unpackagemsg {
 # ======================================================= Get info out of msgid
 
 sub buildmsgid {
-    my ($now,$subject,$uname,$udom,$msgcount,$course_context,$pid) = @_;
-    $subject=&Apache::lonnet::escape($subject);
-    return(&Apache::lonnet::escape($now.':'.$subject.':'.$uname.':'.
-           $udom.':'.$msgcount.':'.$course_context.':'.$pid));
+    my ($now,$subject,$uname,$udom,$msgcount,$course_context,$symb,$error,$pid) = @_;
+    $subject=&escape($subject);
+    $symb = &escape($symb);
+    return(&escape($now.':'.$subject.':'.$uname.':'.
+           $udom.':'.$msgcount.':'.$course_context.':'.$pid.':'.$symb.':'.$error));
 }
 
 sub unpackmsgid {
     my ($msgid,$folder,$skipstatus,$status_cache)=@_;
-    $msgid=&Apache::lonnet::unescape($msgid);
+    $msgid=&unescape($msgid);
     my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$fromcid,
-                     $processid)=split(/\:/,&Apache::lonnet::unescape($msgid));
-    $shortsubj = &Apache::lonnet::unescape($shortsubj);
+        $processid,$symb,$error) = split(/\:/,&unescape($msgid));
+    $shortsubj = &unescape($shortsubj);
     $shortsubj = &HTML::Entities::decode($shortsubj);
+    $symb = &unescape($symb);
     if (!defined($processid)) { $fromcid = ''; }
     my %status=();
     unless ($skipstatus) {
@@ -202,18 +216,27 @@ sub unpackmsgid {
 	if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
         unless ($status{$msgid}) { $status{$msgid}='new'; }
     }
-    return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid},$fromcid);
+    return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid},$fromcid,$symb,$error);
 }
 
 
 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;
@@ -223,7 +246,7 @@ sub sendemail {
 # ==================================================== Send notification emails
 
 sub sendnotification {
-    my ($to,$touname,$toudom,$subj,$crit,$text)=@_;
+    my ($to,$touname,$toudom,$subj,$crit,$text,$msgid)=@_;
     my $sender=$env{'environment.firstname'}.' '.$env{'environment.lastname'};
     unless ($sender=~/\w/) { 
 	$sender=$env{'user.name'}.'@'.$env{'user.domain'};
@@ -235,21 +258,36 @@ sub sendnotification {
     my $url='http://'.
       $Apache::lonnet::hostname{&Apache::lonnet::homeserver($touname,$toudom)}.
       '/adm/email?username='.$touname.'&domain='.$toudom;
-    my $body=(<<ENDMSG);
-You received a$critical message from $sender in LON-CAPA. The subject is
+    my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,
+        $symb,$error) = &Apache::lonmsg::unpackmsgid($msgid);
+    my $coursetext;
+    if ($fromcid ne '') {
+        $coursetext = "\n".&mt('Course').': ';
+        if ($env{'course.'.$fromcid.'.description'} ne '') {
+            $coursetext .= $env{'course.'.$fromcid.'.description'};
+        } else {
+            my %coursehash = &Apache::lonnet::coursedescription($fromcid,);
+            if ($coursehash{'description'} ne '') {
+                $coursetext .= $coursehash{'description'};
+            }
+        }
+        $coursetext .= "\n\n";
+    }
+    my $body = $coursetext. 
+               &mt('You received a'.$critical.' message from [_1] in LON-CAPA.',$sender).' '.&mt('The subject is 
 
- $subj
+ [_1]
 
-=== Excerpt ============================================================
+',$subj)."\n".
+'=== '.&mt('Excerpt')." ============================================================
 $text
 ========================================================================
 
-Use
+".&mt('Use 
 
- $url
+ [_1]
 
-to access the full message.
-ENDMSG
+to access the full message.',$url);
     &sendemail($to,'New'.$critical.' message from '.$sender,$body);
 }
 # ============================================================= Check for email
@@ -286,8 +324,8 @@ sub author_res_msg {
        ($msgid,$message)=&packagemsg($filename,$message);
        return &Apache::lonnet::reply('put:'.$domain.':'.$author.
          ':nohist_res_msgs:'.
-          &Apache::lonnet::escape($filename.'_'.$id).'='.
-          &Apache::lonnet::escape($message),$homeserver);
+          &escape($filename.'_'.$id).'='.
+          &escape($message),$homeserver);
     }
     return 'no_host';
 }
@@ -297,7 +335,7 @@ 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) {
@@ -317,7 +355,7 @@ 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+$/) {
@@ -331,7 +369,7 @@ 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/) {
@@ -352,40 +390,59 @@ sub all_url_author_res_msg {
     return %returnhash;
 }
 
+# ====================================== Add a comment to the User Notes screen
+
+sub store_instructor_comment {
+    my ($msg,$uname,$udom) = @_;
+    my $cid  = $env{'request.course.id'};
+    my $cnum = $env{'course.'.$cid.'.num'};
+    my $cdom = $env{'course.'.$cid.'.domain'};
+    my $subject= &mt('Record').' ['.$uname.':'.$udom.']';
+    my $result = &user_normal_msg_raw($cnum,$cdom,$subject,$msg);
+    return $result;
+}
+
 # ================================================== Critical message to a user
 
 sub user_crit_msg_raw {
     my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage)=@_;
 # Check if allowed missing
-    my $status='';
+    my ($status,$packed_message);
     my $msgid='undefined';
     unless (($message)&&($user)&&($domain)) { $status='empty'; };
     my $text=$message;
     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
     if ($homeserver ne 'no_host') {
-       ($msgid,$message)=&packagemsg($subject,$message);
-       if ($sendback) { $message.='<sendback>true</sendback>'; }
+       ($msgid,$packed_message)=&packagemsg($subject,$message);
+       if ($sendback) { $packed_message.='<sendback>true</sendback>'; }
        $status=&Apache::lonnet::critical(
            'put:'.$domain.':'.$user.':critical:'.
-           &Apache::lonnet::escape($msgid).'='.
-           &Apache::lonnet::escape($message),$homeserver);
+           &escape($msgid).'='.
+           &escape($packed_message),$homeserver);
         if (defined($sentmessage)) {
-            $$sentmessage = $message;
+            $$sentmessage = $packed_message;
+        }
+        if ($env{'request.course.id'} eq '') {
+            (undef,my $packed_message_no_citation) =
+            &packagemsg($subject,$message,undef,undef,undef,$user,$domain,
+                        $msgid);
+            if ($status eq 'ok' || $status eq 'con_delayed') {
+                &store_sent_mail($msgid,$packed_message_no_citation);
+            }
         }
     } else {
        $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);
+			$text,$msgid);
     }
     if ($toperm && $userenv{'permanentemail'}) {
       &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,1,
-			$text);
+			$text,$msgid);
     }
 # Log this
     &Apache::lonnet::logthis(
@@ -470,7 +527,8 @@ sub user_crit_received {
 
 sub user_normal_msg_raw {
     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
-	$toperm,$currid,$newid,$sentmessage,$crsmsgid)=@_;
+        $toperm,$currid,$newid,$sentmessage,$crsmsgid,$symb,$restitle,
+        $error)=@_;
 # Check if allowed missing
     my ($status,$packed_message);
     my $msgid='undefined';
@@ -481,13 +539,13 @@ sub user_normal_msg_raw {
        ($msgid,$packed_message)=
 	                 &packagemsg($subject,$message,$citation,$baseurl,
                                      $attachmenturl,$user,$domain,$currid,
-                                                         undef,$crsmsgid);
+                                     undef,$crsmsgid,$symb,$error);
 
 # Store in user folder
        $status=&Apache::lonnet::critical(
            'put:'.$domain.':'.$user.':nohist_email:'.
-           &Apache::lonnet::escape($msgid).'='.
-           &Apache::lonnet::escape($packed_message),$homeserver);
+           &escape($msgid).'='.
+           &escape($packed_message),$homeserver);
 # Save new message received time
        &Apache::lonnet::put
                          ('email_status',{'recnewemail'=>time},$domain,$user);
@@ -495,41 +553,40 @@ sub user_normal_msg_raw {
        unless (($env{'request.course.id'}) && 
                (($env{'form.sendmode'} eq 'group')  || 
                (($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
-               (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
-		|| &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
-					    '/'.$env{'request.course.sec'})))) {
-           (undef, my $packed_message_no_citation)=
-                             &packagemsg($subject,$message,undef     ,$baseurl,
-                                          $attachmenturl,$user,$domain,$currid,
-                                                              undef,$crsmsgid);
-
-           $status .= &store_sent_mail($msgid,$packed_message_no_citation);
+		(&Apache::lonnet::allowed('srm',$env{'request.course.id'})
+		 || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
+					     '/'.$env{'request.course.sec'})))) {
+           (undef,my $packed_message_no_citation) =
+               &packagemsg($subject,$message,undef,$baseurl,$attachmenturl,
+                           $user,$domain,$currid,undef,$crsmsgid,$symb,$error);
+           if ($status eq 'ok' || $status eq 'con_delayed') {
+               &store_sent_mail($msgid,$packed_message_no_citation);
+           }
+       }
+       if (defined($newid)) {
+	   $$newid = $msgid;
+       }
+       if (defined($sentmessage)) {
+	   $$sentmessage = $packed_message;
        }
-    } else {
-       $status='no_host';
-    }
-    if (defined($newid)) {
-        $$newid = $msgid;
-    }
-    if (defined($sentmessage)) {
-        $$sentmessage = $packed_message;
-    }
-
 # Notifications
-    my %userenv = &Apache::lonnet::get('environment',['notification',
-                                                      'permanentemail'],
-                                       $domain,$user);
-    if ($userenv{'notification'}) {
-	&sendnotification($userenv{'notification'},$user,$domain,$subject,0,
-			  $text);
-    }
-    if ($toperm && $userenv{'permanentemail'}) {
-	&sendnotification($userenv{'permanentemail'},$user,$domain,$subject,0,
-			  $text);
-    }
-    &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
-                         $env{'user.home'},
-      'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
+       my %userenv = &Apache::lonnet::get('environment',['notification',
+							 'permanentemail'],
+					  $domain,$user);
+       if ($userenv{'notification'}) {
+	   &sendnotification($userenv{'notification'},$user,$domain,$subject,0,
+			     $text,$msgid);
+       }
+       if ($toperm && $userenv{'permanentemail'}) {
+	   &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,0,
+			     $text,$msgid);
+       }
+       &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
+			    $env{'user.home'},
+			    'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
+   } else {
+       $status='no_host';
+   }
     return $status;
 }
 
@@ -537,15 +594,15 @@ sub user_normal_msg_raw {
 
 =pod
 
-=item * B<user_normal_msg($user, $domain, $subject, $message,
-    $citation, $baseurl, $attachmenturl)>: Sends a message to the
-    $user at $domain, with subject $subject and message $message.
+=item * B<user_normal_msg($user, $domain, $subject, $message, $citation,
+       $baseurl, $attachmenturl, $toperm, $sentmessage, $symb, $restitle, $error)>:
+ Sends a message to the  $user at $domain, with subject $subject and message $message.
 
 =cut
 
 sub user_normal_msg {
     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
-	$toperm,$sentmessage)=@_;
+	$toperm,$sentmessage,$symb,$restitle,$error)=@_;
     my $status='';
     my %userenv = &Apache::lonnet::get('environment',['msgforward'],
                                        $domain,$user);
@@ -556,12 +613,12 @@ sub user_normal_msg {
 	    $status.=
 	        &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
 				     $citation,$baseurl,$attachmenturl,$toperm,
-				     undef,undef,$sentmessage).' ';
+				     undef,undef,$sentmessage,undef,$symb,$restitle,$error).' ';
         }
-    } else { 
+    } else {
 	$status=&user_normal_msg_raw($user,$domain,$subject,$message,
 				     $citation,$baseurl,$attachmenturl,$toperm,
-				     undef,undef,$sentmessage);
+				     undef,undef,$sentmessage,undef,$symb,$restitle,$error);
     }
     return $status;
 }
@@ -571,8 +628,8 @@ sub store_sent_mail {
     my $status =' '.&Apache::lonnet::critical(
                'put:'.$env{'user.domain'}.':'.$env{'user.name'}.
                                           ':nohist_email_sent:'.
-               &Apache::lonnet::escape($msgid).'='.
-               &Apache::lonnet::escape($message),$env{'user.home'});
+               &escape($msgid).'='.
+               &escape($message),$env{'user.home'});
     return $status;
 }
 
@@ -581,7 +638,31 @@ sub store_sent_mail {
 sub foldersuffix {
     my $folder=shift;
     unless ($folder) { return ''; }
-    return '_'.&Apache::lonnet::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;