--- loncom/interface/lonmsg.pm	2001/10/01 19:24:49	1.23
+++ loncom/interface/lonmsg.pm	2003/03/17 16:55:06	1.42.2.1
@@ -1,7 +1,31 @@
 # The LearningOnline Network with CAPA
-#
 # Routines for messaging
 #
+# $Id: lonmsg.pm,v 1.42.2.1 2003/03/17 16:55:06 albertel Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+#
 # (Routines to control the menu
 #
 # (TeX Conversion Module
@@ -14,31 +38,36 @@
 # 02/06/01 Gerd Kortemeyer
 # 07/27 Guy Albertelli
 # 07/27,07/28,07/30,08/03,08/06,08/08,08/09,08/10,8/13,8/15,
-# 10/1 Gerd Kortemeyer
-
+# 10/1,11/5 Gerd Kortemeyer
+# YEAR=2002
+# 1/1,3/18 Gerd Kortemeyer
+#
 package Apache::lonmsg;
 
 use strict;
 use Apache::lonnet();
 use vars qw($msgcount);
-use HTML::TokeParser;
+use HTML::TokeParser();
 use Apache::Constants qw(:common);
+use Apache::loncommon();
+use Apache::lontexconvert();
+use HTML::Entities();
 
 # ===================================================================== Package
 
 sub packagemsg {
     my ($subject,$message,$citation)=@_;
-    $message=~s/\</\&lt\;/g;
-    $message=~s/\>/\&gt\;/g;
-    $citation=~s/\</\&lt\;/g;
-    $citation=~s/\>/\&gt\;/g;
-    $subject=~s/\</\&lt\;/g;
-    $subject=~s/\>/\&gt\;/g;
+#    $message=~s/\</\&lt\;/g;
+#    $message=~s/\>/\&gt\;/g;
+    $message =&HTML::Entities::encode($message);
+    $citation=&HTML::Entities::encode($citation);
+    $subject =&HTML::Entities::encode($subject);
+#    $subject=~s/\</\&lt\;/g;
+#    $subject=~s/\>/\&gt\;/g;
     my $now=time;
     $msgcount++;
     my $partsubj=$subject;
     $partsubj=&Apache::lonnet::escape($partsubj);
-    $partsubj=substr($partsubj,0,50);
     my $msgid=&Apache::lonnet::escape(
            $now.':'.$partsubj.':'.$ENV{'user.name'}.':'.
            $ENV{'user.domain'}.':'.$msgcount.':'.$$);
@@ -92,6 +121,17 @@ sub unpackmsgid {
     return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid});
 } 
 
+# ============================================================= Check for email
+
+sub newmail {
+    if ((time-$ENV{'user.mailcheck.time'})>300) {
+        my %what=&Apache::lonnet::get('email_status',['recnewemail']);
+        &Apache::lonnet::appenv('user.mailcheck.time'=>time);
+        if ($what{'recnewemail'}>0) { return 1; }
+    }
+    return 0;
+}
+
 # =============================== Automated message to the author of a resource
 
 sub author_res_msg {
@@ -114,8 +154,8 @@ sub author_res_msg {
 
 # ================================================== Critical message to a user
 
-sub user_crit_msg {
-    my ($user,$domain,$subject,$message)=@_;
+sub user_crit_msg_raw {
+    my ($user,$domain,$subject,$message,$sendback)=@_;
 # Check if allowed missing
     my $status='';
     my $msgid='undefined';
@@ -123,6 +163,7 @@ sub user_crit_msg {
     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
     if ($homeserver ne 'no_host') {
        ($msgid,$message)=&packagemsg($subject,$message);
+       if ($sendback) { $message.='<sendback>true</sendback>'; }
        $status=&Apache::lonnet::critical(
            'put:'.$domain.':'.$user.':critical:'.
            &Apache::lonnet::escape($msgid).'='.
@@ -140,19 +181,41 @@ sub user_crit_msg {
     return $status;
 }
 
+# New routine that respects "forward" and calls old routine
+
+sub user_crit_msg {
+    my ($user,$domain,$subject,$message,$sendback)=@_;
+    my $status='';
+    my %userenv = &Apache::lonnet::get('environment',['msgforward'],
+                                       $domain,$user);
+    my $msgforward=$userenv{'msgforward'};
+    if ($msgforward) {
+       foreach (split(/\,/,$msgforward)) {
+	 my ($forwuser,$forwdomain)=split(/\:/,$_);
+         $status.=
+	   &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,
+                $sendback).' ';
+       }
+    } else { 
+	$status=&user_crit_msg_raw($user,$domain,$subject,$message,$sendback);
+    }
+    return $status;
+}
+
 # =================================================== Critical message received
 
 sub user_crit_received {
     my $msgid=shift;
     my %message=&Apache::lonnet::get('critical',[$msgid]);
     my %contents=&unpackagemsg($message{$msgid});
-    my $status='rec: '.
+    my $status='rec: '.($contents{'sendback'}?
      &user_normal_msg($contents{'sendername'},$contents{'senderdomain'},
                      'Receipt: '.$ENV{'user.name'}.' at '.$ENV{'user.domain'},
                      'User '.$ENV{'user.name'}.' at '.$ENV{'user.domain'}.
-                     ' acknowledged receipt of message "'.
-                     $contents{'subject'}.'" dated '.$contents{'time'}.".\n\n"
-                     .'Message ID: '.$contents{'msgid'});
+                     ' acknowledged receipt of message'."\n".'   "'.
+                     $contents{'subject'}.'"'."\n".'dated '.
+                     $contents{'time'}.".\n"
+                     ):'no msg req');
     $status.=' trans: '.
      &Apache::lonnet::put(
      'nohist_email',{$contents{'msgid'} => $message{$msgid}});
@@ -167,7 +230,7 @@ sub user_crit_received {
 
 # ======================================================== Normal communication
 
-sub user_normal_msg {
+sub user_normal_msg_raw {
     my ($user,$domain,$subject,$message,$citation)=@_;
 # Check if allowed missing
     my $status='';
@@ -180,6 +243,8 @@ sub user_normal_msg {
            'put:'.$domain.':'.$user.':nohist_email:'.
            &Apache::lonnet::escape($msgid).'='.
            &Apache::lonnet::escape($message),$homeserver);
+       &Apache::lonnet::put
+                         ('email_status',{'recnewemail'=>time},$domain,$user);
     } else {
        $status='no_host';
     }
@@ -189,6 +254,29 @@ sub user_normal_msg {
     return $status;
 }
 
+# New routine that respects "forward" and calls old routine
+
+sub user_normal_msg {
+    my ($user,$domain,$subject,$message,$citation)=@_;
+    my $status='';
+    my %userenv = &Apache::lonnet::get('environment',['msgforward'],
+                                       $domain,$user);
+    my $msgforward=$userenv{'msgforward'};
+    if ($msgforward) {
+       foreach (split(/\,/,$msgforward)) {
+	 my ($forwuser,$forwdomain)=split(/\:/,$_);
+         $status.=
+	  &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
+                                                             $citation).' ';
+       }
+    } else { 
+	$status=
+          &user_normal_msg_raw($user,$domain,$subject,$message,$citation);
+    }
+    return $status;
+}
+
+
 # =============================================================== Status Change
 
 sub statuschange {
@@ -251,7 +339,7 @@ sub discourse {
 <input type=button onClick="uncheckall()" value="Check for None">
 <p>
 ENDDISHEADER
-    map {
+    foreach (sort keys %courselist) {
         my ($end,$start)=split(/\:/,$courselist{$_});
         my $active=1;
         if (($end) && ($now>$end)) { $active=0; }
@@ -270,28 +358,43 @@ ENDDISHEADER
                       $reply{'generation'}.
                       ' ('.$_.') '.$section);
         } 
-    } sort keys %courselist;
+    }
 }
 
 # ==================================================== Display Critical Message
 
 sub discrit {
     my $r=shift;
-      $r->print('<h1><font color=red>Critical Messages</font></h1>'.
-         '<form action=/adm/email method=post>'.
-         '<input type=hidden name=confirm value=true>');
-      my %what=&Apache::lonnet::dump('critical');
-      map {
-          my %content=&unpackagemsg($what{$_});
-          $content{'message'}=~s/\n/\<br\>/g;
-	  $r->print('<hr>From: <b>'.$content{'sendername'}.'@'.
-                    $content{'senderdomain'}.'</b> ('.$content{'time'}.
-                    ')<br><blockquote>'.$content{'message'}.'</blockquote>'.
-  '<input type=submit name="rec_'.$_.'" value="Confirm Receipt">'.
- '<input type=submit name="reprec_'.$_.'" value="Confirm Receipt and Reply">');
-      } sort keys %what;
-      $r->print(
-          '<input type=hidden name="displayedcrit" value="true"></form>');
+    my $header = '<h1><font color=red>Critical Messages</font></h1>'.
+        '<form action=/adm/email method=post>'.
+        '<input type=hidden name=confirm value=true>';
+    my %what=&Apache::lonnet::dump('critical');
+    my $result = '';
+    foreach (sort keys %what) {
+        my %content=&unpackagemsg($what{$_});
+        next if ($content{'senderdomain'} eq '');
+        $content{'message'}=~s/\n/\<br\>/g;
+        $result.='<hr>From: <b>'.
+&Apache::loncommon::aboutmewrapper(
+ &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
+$content{'sendername'}.'@'.
+            $content{'senderdomain'}.') '.$content{'time'}.
+            '<br>Subject: '.$content{'subject'}.
+            '<br><blockquote>'.
+              &Apache::lontexconvert::msgtexconverted($content{'message'}).
+            '</blockquote>'.
+            '<input type=submit name="rec_'.$_.'" value="Confirm Receipt">'.
+            '<input type=submit name="reprec_'.$_.'" '.
+                  'value="Confirm Receipt and Reply">';
+    }
+    # Check to see if there were any messages.
+    if ($result eq '') {
+        $result = "<h2>You have no critical messages.</h2>";
+    } else {
+        $r->print($header);
+    }
+    $r->print($result);
+    $r->print('<input type=hidden name="displayedcrit" value="true"></form>');
 }
 
 # =============================================================== Compose reply
@@ -307,14 +410,18 @@ sub comprep {
       my $subject='Re: '.$content{'subject'};
       my $dispcrit='';
       if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
+	 my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
          $dispcrit=
-	     '<input type=checkbox name=critmsg> Send as critical message<p>';
+ '<input type=checkbox name=critmsg> Send as critical message ' . $crithelp . 
+ '<br>'.
+ '<input type=checkbox name=sendbck> Send as critical message ' .
+ ' and return receipt' . $crithelp . '<p>';
       }
       $r->print(<<"ENDREPLY");
 <form action="/adm/email" method=post>
 <input type=hidden name=sendreply value="$msgid">
 Subject: <input type=text size=50 name=subject value="$subject"><p>
-<textarea name=message cols=64 rows=10 wrap=hard>
+<textarea name=message cols=84 rows=10 wrap=hard>
 $quotemsg
 </textarea><p>
 $dispcrit
@@ -327,34 +434,62 @@ ENDREPLY
 
 sub disall {
     my $r=shift;
-    $r->print('<h1>Display All Messages</h1>'.
+     $r->print(<<ENDDISHEADER);
+<script>
+    function checkall() {
+	for (i=0; i<document.forms.disall.elements.length; i++) {
+            if 
+          (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
+	      document.forms.disall.elements[i].checked=true;
+            }
+        }
+    }
+
+    function uncheckall() {
+	for (i=0; i<document.forms.disall.elements.length; i++) {
+            if 
+          (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
+	      document.forms.disall.elements[i].checked=false;
+            }
+        }
+    }
+</script>
+ENDDISHEADER
+   $r->print(
+ '<h1>Display All Messages</h1><form method=post name=disall '.
+ 'action="/adm/email">'.
      '<table border=2><tr><th colspan=2>&nbsp</th><th>Date</th>'.
      '<th>Username</th><th>Domain</th><th>Subject</th><th>Status</th></tr>');
-    map {
+    foreach (sort split(/\&/,&Apache::lonnet::reply('keys:'.
+					$ENV{'user.domain'}.':'.
+                                        $ENV{'user.name'}.':nohist_email',
+                                        $ENV{'user.home'}))) {
         my ($sendtime,$shortsubj,$fromname,$fromdomain,$status)=
 	    &Apache::lonmsg::unpackmsgid($_);
-       unless ($status eq 'deleted') {
-        if ($status eq 'new') {
-	    $r->print('<tr bgcolor="#FFBB77">');
-        } elsif ($status eq 'read') {
-	    $r->print('<tr bgcolor="#BBBB77">');
-        } elsif ($status eq 'replied') {
-	    $r->print('<tr bgcolor="#AAAA88">');
-	} else {
-	    $r->print('<tr bgcolor="#99BBBB">');
-        }
-        $r->print('<td><a href="/adm/email?display='.$_.
-                  '">Open</a></td><td><a href="/adm/email?markdel='.$_.
-                  '">Delete</a></td><td>'.localtime($sendtime).'</td><td>'.
-                  $fromname.'</td><td>'.$fromdomain.'</td><td>'.
+	if (($status ne 'deleted') && defined($sendtime) && $sendtime!~/error/) {
+	    if ($status eq 'new') {
+		$r->print('<tr bgcolor="#FFBB77">');
+	    } elsif ($status eq 'read') {
+		$r->print('<tr bgcolor="#BBBB77">');
+	    } elsif ($status eq 'replied') {
+		$r->print('<tr bgcolor="#AAAA88">');
+	    } else {
+		$r->print('<tr bgcolor="#99BBBB">');
+	    }
+	    $r->print('<td><a href="/adm/email?display='.$_.
+		      '">Open</a></td><td><a href="/adm/email?markdel='.$_.
+		      '">Delete</a><input type=checkbox name="delmark_'.$_.'"></td>'.
+		      '<td>'.localtime($sendtime).'</td><td>'.
+		      $fromname.'</td><td>'.$fromdomain.'</td><td>'.
 		      &Apache::lonnet::unescape($shortsubj).'</td><td>'.
                       $status.'</td></tr>');
-       }
-    } sort split(/\&/,&Apache::lonnet::reply('keys:'.
-					$ENV{'user.domain'}.':'.
-                                        $ENV{'user.name'}.':nohist_email',
-                                        $ENV{'user.home'}));
-    $r->print('</table></body></html>');
+	}
+    }
+    $r->print('</table><p>'.
+              '<a href="javascript:checkall()">Check All</a>&nbsp;'.
+              '<a href="javascript:uncheckall()">Uncheck All</a><p>'.
+              '<input type=submit name="markeddel" value="Delete Checked">'.
+              '</form></body></html>');
 }
 
 # ============================================================== Compose output
@@ -366,8 +501,12 @@ sub compout {
     my $dismsg='';
     my $func='Send New';
       if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
+	 my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
          $dispcrit=
-	     '<input type=checkbox name=critmsg> Send as critical message<p>';
+ '<input type=checkbox name=critmsg> Send as critical message ' . $crithelp . 
+ '<br>'.
+ '<input type=checkbox name=sendbck> Send as critical message ' .
+ ' and return receipt' . $crithelp . '<p>';
       }
     if ($forwarding) {
        $dispcrit.='<input type=hidden name=forwid value="'.
@@ -381,47 +520,57 @@ sub compout {
 	   $content{'sendername'}.' at '.$content{'senderdomain'};
     }
     my $defdom=$ENV{'user.domain'};
+    if ($ENV{'form.recdom'}) { $defdom=$ENV{'form.recdom'}; }
       $r->print(
-                '<form action="/adm/email"  name="compemail" method=post'.
-                ' enctype="multipart/form-data">'.
-                '<input type=hidden name=sendmail value=on><table>');
+                '<form action="/adm/email"  name="compemail" method="post"'.
+                ' enctype="multipart/form-data">'."\n".
+                '<input type="hidden" name="sendmail" value="on">'."\n".
+                '<table>');
     unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {
+        my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
+
        $r->print(<<"ENDREC");
 <table>
-<tr><td>Username:</td><td><input type=text size=12 name=recuname></td></tr>
+<tr><td>Username:</td><td><input type=text size=12 name=recuname value="$ENV{'form.recname'}"></td></tr>
 <tr><td>Domain:</td>
-<td><input type=text size=12 name=recdomain value="$defdom"></td></tr>
+<td>$domform</td></tr>
 ENDREC
     }
-    unless ($broadcast eq 'upload') {
+    if ($broadcast ne 'upload') {
        $r->print(<<"ENDCOMP");
 <tr><td>Additional Recipients<br><tt>username\@domain,username\@domain, ...
 </tt></td><td>
 <input type=text size=50 name=additionalrec></td></tr>
 <tr><td>Subject:</td><td><input type=text size=50 name=subject value="$dissub">
 </td></tr></table>
-<textarea name=message cols=60 rows=10 wrap=hard>$dismsg
+<textarea name=message cols=80 rows=10 wrap=hard>$dismsg
 </textarea><p>
 $dispcrit
 <input type=submit value="$func Mail">
 ENDCOMP
-    }
-    if ($broadcast eq 'upload') {
+    } else { # $broadcast is 'upload'
 	$r->print(<<ENDUPLOAD);
 <input type=hidden name=sendmode value=upload>
 <h3>Generate messages from a file</h3>
+<p>
 Subject: <input type=text size=50 name=subject>
+</p>
+<p>General message text<br />
+<textarea name=message cols=60 rows=10 wrap=hard>$dismsg
+</textarea></p>
+<p>
+The file format for the uploaded portion of the message is:
 <pre>
 username1\@domain1: text
 username2\@domain2: text
-username1\@domain1: text
+username3\@domain1: text
 </pre>
+</p>
+<p>
 The messages will be assembled from all lines with the respective 
-<tt>username\@domain</tt>, and appended to the general message text.<p>
+<tt>username\@domain</tt>, and appended to the general message text.</p>
+<p>
 <input type=file name=upfile size=20><p>
-General message text:<p>
-<textarea name=message cols=60 rows=10 wrap=hard>$dismsg
-</textarea><p>
 $dispcrit
 <input type=submit value="Upload and send">
 ENDUPLOAD
@@ -445,36 +594,28 @@ sub handler {
   return OK if $r->header_only;
 
 # --------------------------- Get query string for limited number of parameters
+    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+        ['display','replyto','forward','markread','markdel','markunread',
+         'sendreply','compose','sendmail','critical','recname','recdom']);
 
-    map {
-       my ($name, $value) = split(/=/,$_);
-       $value =~ tr/+/ /;
-       $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
-       if (($name eq 'display') || ($name eq 'replyto') || 
-           ($name eq 'forward') || ($name eq 'markread') ||
-           ($name eq 'markdel') || ($name eq 'markunread') ||
-           ($name eq 'sendreply') || ($name eq 'compose') ||
-           ($name eq 'sendmail') || ($name eq 'critical')) {
-           unless ($ENV{'form.'.$name}) {
-              $ENV{'form.'.$name}=$value;
-	   }
-       }
-    } (split(/&/,$ENV{'QUERY_STRING'}));
-
+# ------------------------------------------------------ They checked for email
+  &Apache::lonnet::put('email_status',{'recnewemail'=>0});
 # --------------------------------------------------------------- Render Output
   
-  $r->print('<html><head><title>EMail and Messaging</title></head>');
-  $r->print(
-   '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
-  $r->print('<h1>EMail</h1>');
+  $r->print('<html><head><title>EMail and Messaging</title></head>'.
+            &Apache::loncommon::bodytag('EMail and Messages'));
   if ($ENV{'form.display'}) {
       my $msgid=$ENV{'form.display'};
       &statuschange($msgid,'read');
       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
       my %content=&unpackagemsg($message{$msgid});
       $r->print('<b>Subject:</b> '.$content{'subject'}.
-             '<br><b>From:</b> '.$content{'sendername'}.' at '.
-                                 $content{'senderdomain'}.
+             '<br><b>From:</b> '.
+&Apache::loncommon::aboutmewrapper(
+&Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),
+$content{'sendername'},$content{'senderdomain'}).' ('.
+                                 $content{'sendername'}.' at '.
+                                 $content{'senderdomain'}.') '.
              '<br><b>Time:</b> '.$content{'time'}.'<p>'.
              '<table border=2><tr bgcolor="#FFFFAA"><td>Functions:</td>'.
            '<td><a href="/adm/email?replyto='.&Apache::lonnet::escape($msgid).
@@ -485,7 +626,8 @@ sub handler {
              '"><b>Mark Unread</b></a></td>'.
         '<td><a href="/adm/email"><b>Display all Messages</b></a></td>'.
              '</tr></table><p><pre>'.
-             $content{'message'}.'</pre><hr>'.$content{'citation'});
+             &Apache::lontexconvert::msgtexconverted($content{'message'}).
+             '</pre><hr>'.$content{'citation'});
   } elsif ($ENV{'form.replyto'}) {
       &comprep($r,$ENV{'form.replyto'});
   } elsif ($ENV{'form.sendreply'}) {
@@ -493,13 +635,14 @@ sub handler {
       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
       my %content=&unpackagemsg($message{$msgid});
       &statuschange($msgid,'replied');
-      if (($ENV{'form.critmsg'}) && 
+      if ((($ENV{'form.critmsg'}) || ($ENV{'form.sendbck'})) && 
           (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
          $r->print('Sending critical: '.
                 &user_crit_msg($content{'sendername'},
                                  $content{'senderdomain'},
                                  $ENV{'form.subject'},
-                                 $ENV{'form.message'}));
+                                 $ENV{'form.message'},
+                                 $ENV{'form.sendbck'}));
       } else {
          $r->print('Sending: '.&user_normal_msg($content{'sendername'},
                                  $content{'senderdomain'},
@@ -512,7 +655,7 @@ sub handler {
 	  &disall($r);
       }
   } elsif ($ENV{'form.confirm'}) {
-      map {
+      foreach (keys %ENV) {
           if ($_=~/^form\.rec\_(.*)$/) {
 	      $r->print('<b>Confirming Receipt:</b> '.
                         &user_crit_received($1).'<br>');
@@ -523,7 +666,7 @@ sub handler {
                         &user_crit_received($msgid).'<br>');
               &comprep($r,$msgid);
           }
-      } keys %ENV;
+      }
       &discrit($r);
   } elsif ($ENV{'form.critical'}) {
       &discrit($r);
@@ -533,6 +676,16 @@ sub handler {
   } elsif ($ENV{'form.markdel'}) {
       &statuschange($ENV{'form.markdel'},'deleted');
       &disall($r);
+  } elsif ($ENV{'form.markeddel'}) {
+      my $total=0;
+      foreach (keys %ENV) {
+          if ($_=~/^form\.delmark_(.*)$/) {
+	      &statuschange(&Apache::lonnet::unescape($1),'deleted');
+              $total++;
+          }
+      }
+      $r->print('Deleted '.$total.' message(s)<p>');
+      &disall($r);
   } elsif ($ENV{'form.markunread'}) {
       &statuschange($ENV{'form.markunread'},'new');
       &disall($r);
@@ -552,39 +705,39 @@ sub handler {
       my %toaddr=();
       undef %toaddr;
       if ($ENV{'form.sendmode'} eq 'group') {
-          map {
+          foreach (keys %ENV) {
 	      if ($_=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
 		  $toaddr{$1}='';
               }
-          } keys %ENV;
+          }
       } elsif ($ENV{'form.sendmode'} eq 'upload') {
-          map {
+          foreach (split(/[\n\r\f]+/,$ENV{'form.upfile'})) {
               my ($rec,$txt)=split(/\s*\:\s*/,$_);
               if ($txt) {
 		  $rec=~s/\@/\:/;
                   $toaddr{$rec}.=$txt."\n";
               }
-          } split(/[\n\r\f]+/,$ENV{'form.upfile'});
+          }
       } else {
 	  $toaddr{$ENV{'form.recuname'}.':'.$ENV{'form.recdomain'}}='';
       }
       if ($ENV{'form.additionalrec'}) {
-	  map {
+	  foreach (split(/\,/,$ENV{'form.additionalrec'})) {
               my ($auname,$audom)=split(/\@/,$_);
               $toaddr{$auname.':'.$audom}='';
-          } split(/\,/,$ENV{'form.additionalrec'});
+          }
       }
-    map {
+    foreach (keys %toaddr) {
       my ($recuname,$recdomain)=split(/\:/,$_);
       my $msgtxt=$ENV{'form.message'};
       if ($toaddr{$_}) { $msgtxt.='<hr>'.$toaddr{$_}; }    
-      if (($ENV{'form.critmsg'}) && 
+      if ((($ENV{'form.critmsg'}) || ($ENV{'form.sendbck'})) && 
           (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
          $r->print('Sending critical: '.
                 &user_crit_msg($recuname,$recdomain,
                                  $ENV{'form.subject'},
                                  $msgtxt,
-                                 $content{'citation'}));
+                                 $ENV{'form.sendbck'}));
       } else {
          $r->print('Sending: '.&user_normal_msg($recuname,$recdomain,
                                  $ENV{'form.subject'},
@@ -592,7 +745,7 @@ sub handler {
                                  $content{'citation'}));
       }
       $r->print('<br>');
-    } keys %toaddr;
+    }
       if ($ENV{'form.displayedcrit'}) {
           &discrit($r);
       } else {
@@ -607,7 +760,7 @@ sub handler {
 }
 # ================================================= Main program, reset counter
 
-sub BEGIN {
+BEGIN {
     $msgcount=0;
 }