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Diff for /loncom/interface/lonmsg.pm between versions 1.39 and 1.142

-version 1.39, 2002/09/16 20:06:12
+version 1.142, 2005/05/15 01:11:32
  Line 25
  #
  # http://www.lon-capa.org/
  #
- #
- # (Routines to control the menu
- #
- # (TeX Conversion Module
- #
- # 05/29/00,05/30 Gerd Kortemeyer)
- #
- # 10/05 Gerd Kortemeyer)
- #
- # 10/19,10/20,10/30,
- # 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,
- # 10/1,11/5 Gerd Kortemeyer
- # YEAR=2002
- # 1/1,3/18 Gerd Kortemeyer
- #
  package Apache::lonmsg;
+ =pod
+ =head1 NAME
+ Apache::lonmsg: supports internal messaging
+ =head1 SYNOPSIS
+ lonmsg provides routines for sending messages, receiving messages, and
+ a handler to allow users to read, send, and delete messages.
+ =head1 OVERVIEW
+ =head2 Messaging Overview
+ X<messages>LON-CAPA provides an internal messaging system similar to
+ email, but customized for LON-CAPA's usage. LON-CAPA implements its
+ own messaging system, rather then building on top of email, because of
+ the features LON-CAPA messages can offer that conventional e-mail can
+ not:
+ =over 4
+ =item * B<Critical messages>: A message the recipient B<must>
+ acknowlegde receipt of before they are allowed to continue using the
+ system, preventing a user from claiming they never got a message
+ =item * B<Receipts>: LON-CAPA can reliably send reciepts informing the
+ sender that it has been read; again, useful for preventing students
+ from claiming they did not see a message. (While conventional e-mail
+ has some reciept support, it's sporadic, e-mail client-specific, and
+ generally the receiver can opt to not send one, making it useless in
+ this case.)
+ =item * B<Context>: LON-CAPA knows about the sender, such as where
+ they are in a course. When a student mails an instructor asking for
+ help on the problem, the instructor receives not just the student's
+ question, but all submissions the student has made up to that point,
+ the user's rendering of the problem, and the complete view the student
+ saw of the resource, including discussion up to that point. Finally,
+ the instructor is reading all of this inside of LON-CAPA, not their
+ email program, so they have full access to LON-CAPA's grading
+ interface, or other features they may wish to use in response to the
+ student's query.
+ =item * B<Blocking>: LON-CAPA can block display of e-mails that are
+ sent to a student during an online exam. A course coordinator or
+ instructor can set an open and close date/time for scheduled online
+ exams in a course. If a user uses the LON-CAPA internal messaging
+ system to display e-mails during the scheduled blocking event,
+ display of all e-mail sent during the blocking period will be
+ suppressed, and a message of explanation, including details of the
+ currently active blocking periods will be displayed instead. A user
+ who has a course coordinator or instructor role in a course will be
+ unaffected by any blocking periods for the course, unless the user
+ also has a student role in the course, AND has selected the student role.
+ =back
+ Users can ask LON-CAPA to forward messages to conventional e-mail
+ addresses on their B<PREF> screen, but generally, LON-CAPA messages
+ are much more useful than traditional email can be made to be, even
+ with HTML support.
+ Right now, this document will cover just how to send a message, since
+ it is likely you will not need to programmatically read messages,
+ since lonmsg already implements that functionality.
+ =head1 FUNCTIONS
+ =over 4
+ =cut
  use strict;
- use Apache::lonnet();
+ use Apache::lonnet;
  use vars qw($msgcount);
- use HTML::TokeParser;
+ use HTML::TokeParser();
  use Apache::Constants qw(:common);
- use Apache::loncommon;
+ use Apache::loncommon();
- use Apache::lontexconvert;
+ use Apache::lontexconvert();
+ use HTML::Entities();
+ use Mail::Send;
+ use Apache::lonlocal;
+ use Apache::loncommunicate;
+ # Querystring component with sorting type
+ my $sqs;
+ my $startdis;
+ my $interdis;
  # ===================================================================== Package
  sub packagemsg {
-     my ($subject,$message,$citation)=@_;
+     my ($subject,$message,$citation,$baseurl,$attachmenturl,
-     $message=~s/\</\&lt\;/g;
+ 	$recuser,$recdomain)=@_;
-     $message=~s/\>/\&gt\;/g;
+     $message =&HTML::Entities::encode($message,'<>&"');
-     $citation=~s/\</\&lt\;/g;
+     $citation=&HTML::Entities::encode($citation,'<>&"');
-     $citation=~s/\>/\&gt\;/g;
+     $subject =&HTML::Entities::encode($subject,'<>&"');
-     $subject=~s/\</\&lt\;/g;
+     #remove machine specification
-     $subject=~s/\>/\&gt\;/g;
+     $baseurl =~ s|^http://[^/]+/|/|;
+     $baseurl =&HTML::Entities::encode($baseurl,'<>&"');
+     #remove machine specification
+     $attachmenturl =~ s|^http://[^/]+/|/|;
+     $attachmenturl =&HTML::Entities::encode($attachmenturl,'<>&"');
      my $now=time;
      $msgcount++;
      my $partsubj=$subject;
      $partsubj=&Apache::lonnet::escape($partsubj);
      my $msgid=&Apache::lonnet::escape(
-            $now.':'.$partsubj.':'.$ENV{'user.name'}.':'.
+            $now.':'.$partsubj.':'.$env{'user.name'}.':'.
-            $ENV{'user.domain'}.':'.$msgcount.':'.$$);
+            $env{'user.domain'}.':'.$msgcount.':'.
-     return $msgid,
+            $env{'request.course.id'}.':'.$$);
-            '<sendername>'.$ENV{'user.name'}.'</sendername>'.
+     my $result='<sendername>'.$env{'user.name'}.'</sendername>'.
-            '<senderdomain>'.$ENV{'user.domain'}.'</senderdomain>'.
+            '<senderdomain>'.$env{'user.domain'}.'</senderdomain>'.
             '<subject>'.$subject.'</subject>'.
- 	   '<time>'.localtime($now).'</time>'.
+ 	   '<time>'.&Apache::lonlocal::locallocaltime($now).'</time>'.
  	   '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
             '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
  	   '<client>'.$ENV{'REMOTE_ADDR'}.'</client>'.
- 	   '<browsertype>'.$ENV{'browser.type'}.'</browsertype>'.
+ 	   '<browsertype>'.$env{'browser.type'}.'</browsertype>'.
- 	   '<browseros>'.$ENV{'browser.os'}.'</browseros>'.
+ 	   '<browseros>'.$env{'browser.os'}.'</browseros>'.
- 	   '<browserversion>'.$ENV{'browser.version'}.'</browserversion>'.
+ 	   '<browserversion>'.$env{'browser.version'}.'</browserversion>'.
-            '<browsermathml>'.$ENV{'browser.mathml'}.'</browsermathml>'.
+            '<browsermathml>'.$env{'browser.mathml'}.'</browsermathml>'.
  	   '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
- 	   '<courseid>'.$ENV{'request.course.id'}.'</courseid>'.
+ 	   '<courseid>'.$env{'request.course.id'}.'</courseid>'.
- 	   '<role>'.$ENV{'request.role'}.'</role>'.
+ 	   '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
- 	   '<resource>'.$ENV{'request.filename'}.'</resource>'.
+ 	   '<role>'.$env{'request.role'}.'</role>'.
+ 	   '<resource>'.$env{'request.filename'}.'</resource>'.
             '<msgid>'.$msgid.'</msgid>'.
- 	   '<message>'.$message.'</message>'.
+ 	   '<recuser>'.$recuser.'</recuser>'.
- 	   '<citation>'.$citation.'</citation>';
+ 	   '<recdomain>'.$recdomain.'</recdomain>'.
+ 	   '<message>'.$message.'</message>';
+     if (defined($citation)) {
+ 	$result.='<citation>'.$citation.'</citation>';
+     }
+     if (defined($baseurl)) {
+ 	$result.= '<baseurl>'.$baseurl.'</baseurl>';
+     }
+     if (defined($attachmenturl)) {
+ 	$result.= '<attachmenturl>'.$attachmenturl.'</attachmenturl>';
+     }
+     return $msgid,$result;
  }
  # ================================================== Unpack message into a hash
  sub unpackagemsg {
-     my $message=shift;
+     my ($message,$notoken)=@_;
      my %content=();
      my $parser=HTML::TokeParser->new(\$message);
      my $token;
- Line 104  sub unpackagemsg {
+ Line 189  sub unpackagemsg {
             $content{$entry}=$value;
         }
      }
+     if ($content{'attachmenturl'}) {
+        my ($fname)=($content{'attachmenturl'}=~m|/([^/]+)$|);
+        if ($notoken) {
+ 	   $content{'message'}.='<p>'.&mt('Attachment').': <tt>'.$fname.'</tt>';
+        } else {
+ 	   &Apache::lonnet::allowuploaded('/adm/msg',
+ 					  $content{'attachmenturl'});
+ 	   $content{'message'}.='<p>'.&mt('Attachment').
+ 	       ': <a href="'.$content{'attachmenturl'}.'"><tt>'.
+ 	       $fname.'</tt></a>';
+        }
+     }
      return %content;
  }
  # ======================================================= Get info out of msgid
  sub unpackmsgid {
-     my $msgid=&Apache::lonnet::unescape(shift);
+     my ($msgid,$folder)=@_;
-     my ($sendtime,$shortsubj,$fromname,$fromdomain)=split(/\:/,
+     $msgid=&Apache::lonnet::unescape($msgid);
+     my $suffix=&foldersuffix($folder);
+     my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$fromcid)=split(/\:/,
                            &Apache::lonnet::unescape($msgid));
-     my %status=&Apache::lonnet::get('email_status',[$msgid]);
+     my %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
      if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
      unless ($status{$msgid}) { $status{$msgid}='new'; }
-     return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid});
+     return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid},$fromcid);
  }
+ sub sendemail {
+     my ($to,$subject,$body)=@_;
+     $body=
+     "*** ".&mt('This is an automatic message generated by the LON-CAPA system.')."\n".
+     "*** ".&mt('Please do not reply to this address.')."\n\n".$body;
+     my $msg = new Mail::Send;
+     $msg->to($to);
+     $msg->subject('[LON-CAPA] '.$subject);
+     if (my $fh = $msg->open()) {
+ 	print $fh $body;
+ 	$fh->close;
+     }
+ }
+ # ==================================================== Send notification emails
+ sub sendnotification {
+     my ($to,$touname,$toudom,$subj,$crit,$text)=@_;
+     my $sender=$env{'environment.firstname'}.' '.$env{'environment.lastname'};
+     unless ($sender=~/\w/) {
+ 	$sender=$env{'user.name'}.'@'.$env{'user.domain'};
+     }
+     my $critical=($crit?' critical':'');
+     $text=~s/\&lt\;/\</gs;
+     $text=~s/\&gt\;/\>/gs;
+     $text=~s/\<\/*[^\>]+\>//gs;
+     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
+  $subj
+ === Excerpt ============================================================
+ $text
+ ========================================================================
+ Use
+  $url
+ to access the full message.
+ ENDMSG
+     &sendemail($to,'New'.$critical.' message from '.$sender,$body);
+ }
+ # ============================================================= Check for email
+ sub newmail {
+     if ((time-$env{'user.mailcheck.time'})>300) {
+         my %what=&Apache::lonnet::get('email_status',['recnewemail']);
+         &Apache::lonnet::appenv('user.mailcheck.time'=>time);
+         if ($what{'recnewemail'}>0) { return 1; }
+     }
+     return 0;
+ }
  # =============================== Automated message to the author of a resource
+ =pod
+ =item * B<author_res_msg($filename, $message)>: Sends message $message to the owner
+     of the resource with the URI $filename.
+ =cut
  sub author_res_msg {
      my ($filename,$message)=@_;
      unless ($message) { return 'empty'; }
- Line 139  sub author_res_msg {
+ Line 303  sub author_res_msg {
      return 'no_host';
  }
+ # =========================================== Retrieve author resource messages
+ sub retrieve_author_res_msg {
+     my $url=shift;
+     $url=&Apache::lonnet::declutter($url);
+     my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
+     my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$domain,$author);
+     my $msgs='';
+     foreach (keys %errormsgs) {
+ 	if ($_=~/^\Q$url\E\_\d+$/) {
+ 	    my %content=&unpackagemsg($errormsgs{$_});
+ 	    $msgs.='<p><img src="/adm/lonMisc/bomb.gif" /><b>'.
+ 		$content{'time'}.'</b>: '.$content{'message'}.
+ 		'<br /></p>';
+ 	}
+     }
+     return $msgs;
+ }
+ # =============================== Delete all author messages related to one URL
+ sub del_url_author_res_msg {
+     my $url=shift;
+     $url=&Apache::lonnet::declutter($url);
+     my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
+     my @delmsgs=();
+     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
+ 	if ($_=~/^\Q$url\E\_\d+$/) {
+ 	    push (@delmsgs,$_);
+ 	}
+     }
+     return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
+ }
+ # ================= Return hash with URLs for which there is a resource message
+ sub all_url_author_res_msg {
+     my ($author,$domain)=@_;
+     my %returnhash=();
+     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
+ 	$_=~/^(.+)\_\d+/;
+ 	$returnhash{$1}=1;
+     }
+     return %returnhash;
+ }
  # ================================================== Critical message to a user
  sub user_crit_msg_raw {
-     my ($user,$domain,$subject,$message,$sendback)=@_;
+     my ($user,$domain,$subject,$message,$sendback,$toperm)=@_;
  # Check if allowed missing
      my $status='';
      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);
- Line 155  sub user_crit_msg_raw {
+ Line 367  sub user_crit_msg_raw {
             'put:'.$domain.':'.$user.':critical:'.
             &Apache::lonnet::escape($msgid).'='.
             &Apache::lonnet::escape($message),$homeserver);
+        if ($env{'request.course.id'}) {
+           &user_normal_msg_raw(
+             $env{'course.'.$env{'request.course.id'}.'.num'},
+             $env{'course.'.$env{'request.course.id'}.'.domain'},
+             'Critical ['.$user.':'.$domain.']',
+ 	    $message);
+        }
      } else {
         $status='no_host';
      }
+ # Notifications
+     my %userenv = &Apache::lonnet::get('environment',['critnotification',
+                                                       'permanentemail'],
+                                        $domain,$user);
+     if ($userenv{'critnotification'}) {
+       &sendnotification($userenv{'critnotification'},$user,$domain,$subject,1,
+ 			$text);
+     }
+     if ($toperm && $userenv{'permanentemail'}) {
+       &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,1,
+ 			$text);
+     }
+ # Log this
      &Apache::lonnet::logthis(
        'Sending critical email '.$msgid.
        ', log status: '.
-       &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
+       &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
-                          $ENV{'user.home'},
+                          $env{'user.home'},
        'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status: '
        .$status));
      return $status;
- Line 170  sub user_crit_msg_raw {
+ Line 402  sub user_crit_msg_raw {
  # New routine that respects "forward" and calls old routine
+ =pod
+ =item * B<user_crit_msg($user, $domain, $subject, $message, $sendback)>: Sends
+     a critical message $message to the $user at $domain. If $sendback is true,
+     a reciept will be sent to the current user when $user recieves the message.
+ =cut
  sub user_crit_msg {
-     my ($user,$domain,$subject,$message,$sendback)=@_;
+     my ($user,$domain,$subject,$message,$sendback,$toperm)=@_;
      my $status='';
      my %userenv = &Apache::lonnet::get('environment',['msgforward'],
                                         $domain,$user);
- Line 181  sub user_crit_msg {
+ Line 421  sub user_crit_msg {
  	 my ($forwuser,$forwdomain)=split(/\:/,$_);
           $status.=
  	   &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,
-                 $sendback).' ';
+                 $sendback,$toperm).' ';
         }
      } else {
- 	$status=&user_crit_msg_raw($user,$domain,$subject,$message,$sendback);
+ 	$status=&user_crit_msg_raw($user,$domain,$subject,$message,$sendback,$toperm);
      }
      return $status;
  }
- Line 194  sub user_crit_msg {
+ Line 434  sub user_crit_msg {
  sub user_crit_received {
      my $msgid=shift;
      my %message=&Apache::lonnet::get('critical',[$msgid]);
-     my %contents=&unpackagemsg($message{$msgid});
+     my %contents=&unpackagemsg($message{$msgid},1);
      my $status='rec: '.($contents{'sendback'}?
       &user_normal_msg($contents{'sendername'},$contents{'senderdomain'},
-                      'Receipt: '.$ENV{'user.name'}.' at '.$ENV{'user.domain'},
+                      &mt('Receipt').': '.$env{'user.name'}.' '.&mt('at').' '.$env{'user.domain'}.', '.$contents{'subject'},
-                      'User '.$ENV{'user.name'}.' at '.$ENV{'user.domain'}.
+                      &mt('User').' '.$env{'user.name'}.' '.&mt('at').' '.$env{'user.domain'}.
-                      ' acknowledged receipt of message "'.
+                      ' acknowledged receipt of message'."\n".'   "'.
-                      $contents{'subject'}.'" dated '.$contents{'time'}.".\n\n"
+                      $contents{'subject'}.'"'."\n".&mt('dated').' '.
-                      .'Message ID: '.$contents{'msgid'}):'no msg req');
+                      $contents{'time'}.".\n"
+                      ):'no msg req');
      $status.=' trans: '.
       &Apache::lonnet::put(
       'nohist_email',{$contents{'msgid'} => $message{$msgid}});
      $status.=' del: '.
       &Apache::lonnet::del('critical',[$contents{'msgid'}]);
-     &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
+     &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
-                          $ENV{'user.home'},'Received critical message '.
+                          $env{'user.home'},'Received critical message '.
                           $contents{'msgid'}.
                           ', '.$status);
      return $status;
- Line 217  sub user_crit_received {
+ Line 458  sub user_crit_received {
  # ======================================================== Normal communication
  sub user_normal_msg_raw {
-     my ($user,$domain,$subject,$message,$citation)=@_;
+     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
+ 	$toperm)=@_;
  # Check if allowed missing
      my $status='';
      my $msgid='undefined';
+     my $text=$message;
      unless (($message)&&($user)&&($domain)) { $status='empty'; };
      my $homeserver=&Apache::lonnet::homeserver($user,$domain);
      if ($homeserver ne 'no_host') {
-        ($msgid,$message)=&packagemsg($subject,$message,$citation);
+        ($msgid,$message)=&packagemsg($subject,$message,$citation,$baseurl,
+                                      $attachmenturl,$user,$domain);
+ # Store in user folder
         $status=&Apache::lonnet::critical(
             'put:'.$domain.':'.$user.':nohist_email:'.
             &Apache::lonnet::escape($msgid).'='.
             &Apache::lonnet::escape($message),$homeserver);
+ # Save new message received time
+        &Apache::lonnet::put
+                          ('email_status',{'recnewemail'=>time},$domain,$user);
+ # Into sent-mail folder
+        $status.=' '.&Apache::lonnet::critical(
+            'put:'.$env{'user.domain'}.':'.$env{'user.name'}.
+ 					      ':nohist_email_sent:'.
+            &Apache::lonnet::escape($msgid).'='.
+            &Apache::lonnet::escape($message),$env{'user.home'});
      } else {
         $status='no_host';
      }
-     &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
+ # Notifications
-                          $ENV{'user.home'},
+     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);
      return $status;
  }
  # New routine that respects "forward" and calls old routine
+ =pod
+ =item * B<user_normal_msg($user, $domain, $subject, $message,
+     $citation, $baseurl, $attachmenturl)>: Sends a message to the
+     $user at $domain, with subject $subject and message $message.
+ =cut
  sub user_normal_msg {
-     my ($user,$domain,$subject,$message,$citation)=@_;
+     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
+ 	$toperm)=@_;
      my $status='';
      my %userenv = &Apache::lonnet::get('environment',['msgforward'],
                                         $domain,$user);
- Line 251  sub user_normal_msg {
+ Line 526  sub user_normal_msg {
  	 my ($forwuser,$forwdomain)=split(/\:/,$_);
           $status.=
  	  &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
-                                                              $citation).' ';
+ 			       $citation,$baseurl,$attachmenturl,$toperm).' ';
         }
      } else {
- 	$status=
+ 	$status=&user_normal_msg_raw($user,$domain,$subject,$message,
-           &user_normal_msg_raw($user,$domain,$subject,$message,$citation);
+ 				     $citation,$baseurl,$attachmenturl,$toperm);
      }
      return $status;
  }
+ # ============================================================ List all folders
+ sub folderlist {
+     my $folder=shift;
+     my @allfolders=&Apache::lonnet::getkeys('email_folders');
+     if ($allfolders[0]=~/^error:/) { @allfolders=(); }
+     return '<form method="post" action="/adm/email">'.
+ 	&mt('Folder').': '.
+ 	&Apache::loncommon::select_form($folder,'folder',
+ 			     ('' => &mt('INBOX'),'trash' => &mt('TRASH'),
+ 			      'new' => &mt('New Messages Only'),
+                               'critical' => &mt('Critical'),
+ 			      'sent' => &mt('Sent Messages'),
+ 			      map { $_ => $_ } @allfolders)).
+ 			      ' '.&mt('Show').
+ 			      '<select name="interdis">'.
+ 			      join("\n",map { '<option value="'.$_.'"'.
+ 	 ($_==$interdis?' selected="selected"':'').'>'.$_.'</option>' }
+ 				   (10,20,50,100,200)).'</select>'.
+    '<input type="submit" value="'.&mt('View Folder').'" /><br />'.
+     '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />'.
+ 			      ($folder=~/^(new|critical)/?'</form>':'');
+ }
+ sub scrollbuttons {
+     my ($start,$maxdis,$first,$finish,$total)=@_;
+     unless ($total>0) { return ''; }
+     $start++; $maxdis++;$first++;$finish++;
+     return
+    '<input type="submit" name="firstview" value="'.&mt('First').'" />'.
+    '<input type="submit" name="prevview" value="'.&mt('Previous').'" />'.
+    '<input type="text" size="5" name="startdis" value="'.$start.'" onChange="this.form.submit()" /> of '.$maxdis.
+    '<input type="submit" name="nextview" value="'.&mt('Next').'" />'.
+    '<input type="submit" name="lastview" value="'.&mt('Last').'" /><br />'.
+    &mt('Messages [_1] through [_2] of [_3]',$first,$finish,$total).'</form>';
+ }
+ # =============================================================== Folder suffix
+ sub foldersuffix {
+     my $folder=shift;
+     unless ($folder) { return ''; }
+     return '_'.&Apache::lonnet::escape($folder);
+ }
  # =============================================================== Status Change
  sub statuschange {
-     my ($msgid,$newstatus)=@_;
+     my ($msgid,$newstatus,$folder)=@_;
-     my %status=&Apache::lonnet::get('email_status',[$msgid]);
+     my $suffix=&foldersuffix($folder);
+     my %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
      if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
      unless ($status{$msgid}) { $status{$msgid}='new'; }
      unless (($status{$msgid} eq 'replied') ||
              ($status{$msgid} eq 'forwarded')) {
- 	&Apache::lonnet::put('email_status',{$msgid => $newstatus});
+ 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
      }
      if (($newstatus eq 'deleted') || ($newstatus eq 'new')) {
- 	&Apache::lonnet::put('email_status',{$msgid => $newstatus});
+ 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
      }
  }
+ # ============================================================= Make new folder
+ sub makefolder {
+     my ($newfolder)=@_;
+     if (($newfolder eq 'sent')
+      || ($newfolder eq 'critical')
+      || ($newfolder eq 'trash')
+      || ($newfolder eq 'new')) { return; }
+     &Apache::lonnet::put('email_folders',{$newfolder => time});
+ }
+ # ======================================================== Move between folders
+ sub movemsg {
+     my ($msgid,$srcfolder,$trgfolder)=@_;
+     if ($srcfolder eq 'new') { $srcfolder=''; }
+     my $srcsuffix=&foldersuffix($srcfolder);
+     my $trgsuffix=&foldersuffix($trgfolder);
+ # Copy message
+     my %message=&Apache::lonnet::get('nohist_email'.$srcsuffix,[$msgid]);
+     &Apache::lonnet::put('nohist_email'.$trgsuffix,{$msgid => $message{$msgid}});
+ # Copy status
+     unless ($trgfolder eq 'trash') {
+ 	my %status=&Apache::lonnet::get('email_status'.$srcsuffix,[$msgid]);
+ 	&Apache::lonnet::put('email_status'.$trgsuffix,{$msgid => $status{$msgid}});
+     }
+ # Delete orginals
+     &Apache::lonnet::del('nohist_email'.$srcsuffix,[$msgid]);
+     &Apache::lonnet::del('email_status'.$srcsuffix,[$msgid]);
+ }
  # ======================================================= Display a course list
  sub discourse {
      my $r=shift;
-     my %courselist=&Apache::lonnet::dump(
+     my $classlist = &Apache::loncoursedata::get_classlist();
-                    'classlist',
- 		   $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
- 		   $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
      my $now=time;
+     my %lt=&Apache::lonlocal::texthash('cfa' => 'Check All',
+             'cfs' => 'Check Section/Group',
+             'cfn' => 'Uncheck All');
      $r->print(<<ENDDISHEADER);
- <input type=hidden name=sendmode value=group>
+ <input type="hidden" name="sendmode" value="group" />
  <script>
      function checkall() {
  	for (i=0; i<document.forms.compemail.elements.length; i++) {
- Line 317  sub discourse {
+ Line 671  sub discourse {
          }
      }
  </script>
- <input type=button onClick="checkall()" value="Check for All">&nbsp;
+ <input type="button" onClick="checkall()" value="$lt{'cfa'}" />&nbsp;
- <input type=button onClick="checksec()" value="Check for Section/Group">
+ <input type="button" onClick="checksec()" value="$lt{'cfs'}" />
- <input type=text size=5 name=chksec>&nbsp;
+ <input type="text" size="5" name="chksec" />&nbsp;
- <input type=button onClick="uncheckall()" value="Check for None">
+ <input type="button" onClick="uncheckall()" value="$lt{'cfn'}" />
  <p>
  ENDDISHEADER
-     foreach (sort keys %courselist) {
+     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles();
-         my ($end,$start)=split(/\:/,$courselist{$_});
+     $r->print('<table>');
-         my $active=1;
+     foreach my $role (sort keys %coursepersonnel) {
-         if (($end) && ($now>$end)) { $active=0; }
+         foreach (split(/\,/,$coursepersonnel{$role})) {
-         if ($active) {
+             my ($puname,$pudom)=split(/\:/,$_);
-            my ($sname,$sdom)=split(/\:/,$_);
+             $r->print('<tr><td><label>'.
-            my %reply=&Apache::lonnet::get('environment',
+                       '<input type="checkbox" name="send_to_&&&&&&_'.
-               ['firstname','middlename','lastname','generation'],
+                       $puname.':'.$pudom.'" /> '.
-               $sdom,$sname);
+                       &Apache::loncommon::plainname($puname,$pudom).
-            my $section=&Apache::lonnet::usection
+                       '</label></td>'.
- 	       ($sdom,$sname,$ENV{'request.course.id'});
+                       '<td>('.$_.'),</td><td><i>'.$role.'</i></td></tr>');
-            $r->print(
+         }
-         '<br><input type=checkbox name="send_to_&&&'.$section.'&&&_'.$_.'"> '.
- 		      $reply{'firstname'}.' '.
-                       $reply{'middlename'}.' '.
-                       $reply{'lastname'}.' '.
-                       $reply{'generation'}.
-                       ' ('.$_.') '.$section);
-         }
      }
+     $r->print('</table><table>');
+     my $sort = sub {
+ 	my $aname=lc($classlist->{$a}[&Apache::loncoursedata::CL_FULLNAME()]);
+ 	if (!$aname) { $aname=$a; }
+ 	my $bname=lc($classlist->{$b}[&Apache::loncoursedata::CL_FULLNAME()]);
+ 	if (!$bname) { $bname=$b; }
+ 	return $aname cmp $bname;
+     };
+     foreach my $student (sort $sort (keys(%{$classlist}))) {
+ 	my $info=$classlist->{$student};
+         my ($sname,$sdom,$status,$fullname,$section) =
+             (@{$info}[&Apache::loncoursedata::CL_SNAME(),
+                       &Apache::loncoursedata::CL_SDOM(),
+                       &Apache::loncoursedata::CL_STATUS(),
+                       &Apache::loncoursedata::CL_FULLNAME(),
+                       &Apache::loncoursedata::CL_SECTION()]);
+         next if ($status ne 'Active');
+         my $key = 'send_to_&&&'.$section.'&&&_'.$student;
+         if (! defined($fullname) || $fullname eq '') { $fullname = $sname; }
+         $r->print('<tr><td><label>'.
+                   qq{<input type="checkbox" name="$key" />}.('&nbsp;'x2).
+                   $fullname.'</label></td><td>'.$sname.'@'.$sdom.'</td><td>'.$section.
+                   '</td></tr>');
+     }
+     $r->print('</table>');
  }
  # ==================================================== Display Critical Message
  sub discrit {
      my $r=shift;
-     my $header = '<h1><font color=red>Critical Messages</font></h1>'.
+     my $header = '<h1><font color=red>'.&mt('Critical Messages').'</font></h1>'.
-         '<form action=/adm/email method=post>'.
+         '<form action="/adm/email" method="POST">'.
-         '<input type=hidden name=confirm value=true>';
+         '<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 />'.&mt('From').': <b>'.
-         $result.='<hr>From: <b>'.
  &Apache::loncommon::aboutmewrapper(
   &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
  $content{'sendername'}.'@'.
              $content{'senderdomain'}.') '.$content{'time'}.
-             '<br>Subject: '.$content{'subject'}.
+             '<br />'.&mt('Subject').': '.$content{'subject'}.
-             '<br><blockquote>'.
+             '<br /><pre>'.
                &Apache::lontexconvert::msgtexconverted($content{'message'}).
-             '</blockquote>'.
+             '</pre><small>'.
-             '<input type=submit name="rec_'.$_.'" value="Confirm Receipt">'.
+ &mt('You have to confirm that you received this message. After confirmation, this message will be moved to your regular inbox').
-             '<input type=submit name="reprec_'.$_.'" '.
+             '</small><br />'.
-                   'value="Confirm Receipt and Reply">';
+             '<input type="submit" name="rec_'.$_.'" value="'.&mt('Confirm Receipt').'" />'.
+             '<input type="submit" name="reprec_'.$_.'" '.
+                   'value="'.&mt('Confirm Receipt and Reply').'" />';
      }
      # Check to see if there were any messages.
      if ($result eq '') {
-         $result = "<h2>You have no critical messages.</h2>";
+         $result = "<h2>".&mt('You have no critical messages.')."</h2>".
+ 	    '<a href="/adm/roles">'.&mt('Select a course').'</a><br />'.
+             '<a href="/adm/email">'.&mt('Communicate').'</a>';
      } else {
          $r->print($header);
      }
      $r->print($result);
-     $r->print('<input type=hidden name="displayedcrit" value="true"></form>');
+     $r->print('<input type="hidden" name="displayedcrit" value="true" /></form>');
  }
- # =============================================================== Compose reply
+ sub sortedmessages {
+     my ($blocked,$startblock,$endblock,$numblocked,$folder) = @_;
+     my $suffix=&foldersuffix($folder);
+     my @messages = &Apache::lonnet::getkeys('nohist_email'.$suffix);
+     #unpack the varibles and repack into temp for sorting
+     my @temp;
+     foreach (@messages) {
+ 	my $msgid=&Apache::lonnet::escape($_);
+ 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid)=
+ 	    &Apache::lonmsg::unpackmsgid($msgid,$folder);
+ 	my @temp1 = ($sendtime,$shortsubj,$fromname,$fromdomain,$status,
+ 		     $msgid);
+         # Check whether message was sent during blocking period.
+         if ($sendtime >= $startblock && ($sendtime <= $endblock && $endblock > 0) ) {
+             my $escid = &Apache::lonnet::unescape($msgid);
+             $$blocked{$escid} = 'ON';
+             $$numblocked ++;
+         } else {
+             push @temp ,\@temp1;
+         }
+     }
+     #default sort
+     @temp = sort  {$a->[0] <=> $b->[0]} @temp;
+     if ($env{'form.sortedby'} eq "date"){
+         @temp = sort  {$a->[0] <=> $b->[0]} @temp;
+     }
+     if ($env{'form.sortedby'} eq "revdate"){
+     	@temp = sort  {$b->[0] <=> $a->[0]} @temp;
+     }
+     if ($env{'form.sortedby'} eq "user"){
+ 	@temp = sort  {lc($a->[2]) cmp lc($b->[2])} @temp;
+     }
+     if ($env{'form.sortedby'} eq "revuser"){
+ 	@temp = sort  {lc($b->[2]) cmp lc($a->[2])} @temp;
+     }
+     if ($env{'form.sortedby'} eq "domain"){
+         @temp = sort  {$a->[3] cmp $b->[3]} @temp;
+     }
+     if ($env{'form.sortedby'} eq "revdomain"){
+         @temp = sort  {$b->[3] cmp $a->[3]} @temp;
+     }
+     if ($env{'form.sortedby'} eq "subject"){
+         @temp = sort  {lc($a->[1]) cmp lc($b->[1])} @temp;
+     }
+     if ($env{'form.sortedby'} eq "revsubject"){
+         @temp = sort  {lc($b->[1]) cmp lc($a->[1])} @temp;
+     }
+     if ($env{'form.sortedby'} eq "status"){
+         @temp = sort  {$a->[4] cmp $b->[4]} @temp;
+     }
+     if ($env{'form.sortedby'} eq "revstatus"){
+         @temp = sort  {$b->[4] cmp $a->[4]} @temp;
+     }
+     return @temp;
+ }
- sub comprep {
+ # ======================================================== Display new messages
-     my ($r,$msgid)=@_;
-       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
-       my %content=&unpackagemsg($message{$msgid});
+ sub disnew {
-       my $quotemsg='> '.$content{'message'};
+     my $r=shift;
-       $quotemsg=~s/\r/\n/g;
+     my %lt=&Apache::lonlocal::texthash(
-       $quotemsg=~s/\f/\n/g;
+ 				       'nm' => 'New Messages',
-       $quotemsg=~s/\n+/\n\> /g;
+ 				       'su' => 'Subject',
-       my $subject='Re: '.$content{'subject'};
+ 				       'da' => 'Date',
-       my $dispcrit='';
+ 				       'us' => 'Username',
-       if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
+ 				       'op' => 'Open',
- 	 my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
+ 				       'do' => 'Domain'
-          $dispcrit=
+ 				       );
-  '<input type=checkbox name=critmsg> Send as critical message ' . $crithelp .
+     my @msgids = sort split(/\&/,&Apache::lonnet::reply
-  '<br>'.
+                             ('keys:'.$env{'user.domain'}.':'.
-  '<input type=checkbox name=sendbck> Send as critical message ' .
+                              $env{'user.name'}.':nohist_email',
-  ' and return receipt' . $crithelp . '<p>';
+                              $env{'user.home'}));
-       }
+     my @newmsgs;
-       $r->print(<<"ENDREPLY");
+     my %setters = ();
- <form action="/adm/email" method=post>
+     my $startblock = 0;
- <input type=hidden name=sendreply value="$msgid">
+     my $endblock = 0;
- Subject: <input type=text size=50 name=subject value="$subject"><p>
+     my %blocked = ();
- <textarea name=message cols=84 rows=10 wrap=hard>
+     my $numblocked = 0;
- $quotemsg
+     # Check for blocking of display because of scheduled online exams.
- </textarea><p>
+     &blockcheck(\%setters,\$startblock,\$endblock);
- $dispcrit
+     foreach (@msgids) {
- <input type=submit value="Send Reply">
+         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
- </form>
+ 	    &Apache::lonmsg::unpackmsgid($_);
- ENDREPLY
+         if (defined($sendtime) && $sendtime!~/error/) {
+             my $numsendtime = $sendtime;
+             $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
+             if ($status eq 'new') {
+                 if ($numsendtime >= $startblock && ($numsendtime <= $endblock && $endblock > 0) ) {
+                     $blocked{$_} = 'ON';
+                     $numblocked ++;
+                 } else {
+                     push @newmsgs, {
+                         msgid    => $_,
+                         sendtime => $sendtime,
+                         shortsub => &Apache::lonnet::unescape($shortsubj),
+                         from     => $fromname,
+                         fromdom  => $fromdom
+                         }
+                 }
+             }
+         }
+     }
+     if ($#newmsgs >= 0) {
+         $r->print(<<TABLEHEAD);
+ <h2>$lt{'nm'}</h2>
+ <table border=2><tr><th>&nbsp</th>
+ <th>$lt{'da'}</th><th>$lt{'us'}</th><th>$lt{'do'}</th><th>$lt{'su'}</th></tr>
+ TABLEHEAD
+         foreach my $msg (@newmsgs) {
+             $r->print(<<"ENDLINK");
+ <tr bgcolor="#FFBB77">
+ <td><a href="/adm/email?dismode=new&display=$msg->{'msgid'}">$lt{'op'}</a></td>
+ ENDLINK
+             foreach ('sendtime','from','fromdom','shortsub') {
+                 $r->print("<td>$msg->{$_}</td>");
+             }
+             $r->print("</td></tr>");
+         }
+         $r->print('</table>'.&Apache::loncommon::endbodytag().'</html>');
+     } elsif ($numblocked == 0) {
+         $r->print("<h3>".&mt('You have no unread messages')."</h3>");
+     }
+     if ($numblocked > 0) {
+         my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
+         my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
+         if ($numblocked == 1) {
+             $r->print("<h3>".&mt('You have').' '.$numblocked.' '.&mt('blocked unread message').".</h3>");
+             $r->print(&mt('This message is not viewable because').' ');
+         } else {
+             $r->print("<h3>".&mt('You have').' '.$numblocked.' '.&mt('blocked unread messages').".</h3>");
+             $r->print(&mt('These').' '.$numblocked.' '.&mt('messages are not viewable because '));
+         }
+         $r->print(
+ &mt('display of LON-CAPA messages sent to you by other students between').' '.$beginblock.' '.&mt('and').' '.$finishblock.' '.&mt('is currently being blocked because of online exams').'.');
+         &build_block_table($r,$startblock,$endblock,\%setters);
+     }
  }
  # ======================================================== Display all messages
  sub disall {
-     my $r=shift;
+     my ($r,$folder)=@_;
-      $r->print(<<ENDDISHEADER);
+     $r->print(&folderlist($folder));
+     if ($folder eq 'new') {
+ 	&disnew($r);
+     } elsif ($folder eq 'critical') {
+ 	&discrit($r);
+     } else {
+ 	&disfolder($r,$folder);
+     }
+ }
+ # ============================================================ Display a folder
+ sub disfolder {
+     my ($r,$folder)=@_;
+     my %blocked = ();
+     my %setters = ();
+     my $startblock;
+     my $endblock;
+     my $numblocked = 0;
+     &blockcheck(\%setters,\$startblock,\$endblock);
+     $r->print(<<ENDDISHEADER);
  <script>
      function checkall() {
  	for (i=0; i<document.forms.disall.elements.length; i++) {
- Line 439  sub disall {
+ Line 941  sub disall {
      }
  </script>
  ENDDISHEADER
-    $r->print(
+     my $fsqs='&folder='.$folder;
-  '<h1>Display All Messages</h1><form method=post name=disall '.
+     my @temp=sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder);
-  'action="/adm/email">'.
+     my $totalnumber=$#temp+1;
-      '<table border=2><tr><th colspan=2>&nbsp</th><th>Date</th>'.
+     unless ($totalnumber>0) {
-      '<th>Username</th><th>Domain</th><th>Subject</th><th>Status</th></tr>');
+ 	$r->print('<h2>'.&mt('Empty Folder').'</h2>');
-     foreach (sort split(/\&/,&Apache::lonnet::reply('keys:'.
+ 	return;
- 					$ENV{'user.domain'}.':'.
+     }
-                                         $ENV{'user.name'}.':nohist_email',
+     unless ($interdis) {
-                                         $ENV{'user.home'}))) {
+ 	$interdis=20;
-         my ($sendtime,$shortsubj,$fromname,$fromdomain,$status)=
+     }
- 	    &Apache::lonmsg::unpackmsgid($_);
+     my $number=int($totalnumber/$interdis);
+     if (($startdis<0) || ($startdis>$number)) { $startdis=$number; }
+     my $firstdis=$interdis*$startdis;
+     if ($firstdis>$#temp) { $firstdis=$#temp-$interdis+1; }
+     my $lastdis=$firstdis+$interdis-1;
+     if ($lastdis>$#temp) { $lastdis=$#temp; }
+     $r->print(&scrollbuttons($startdis,$number,$firstdis,$lastdis,$totalnumber));
+     $r->print('<form method="post" name="disall" action="/adm/email">'.
+ 	      '<table border=2><tr><th colspan="3">&nbsp</th><th>');
+     if ($env{'form.sortedby'} eq "revdate") {
+ 	$r->print('<a href = "?sortedby=date'.$fsqs.'">'.&mt('Date').'</a></th>');
+     } else {
+ 	$r->print('<a href = "?sortedby=revdate'.$fsqs.'">'.&mt('Date').'</a></th>');
+     }
+     $r->print('<th>');
+     if ($env{'form.sortedby'} eq "revuser") {
+ 	$r->print('<a href = "?sortedby=user'.$fsqs.'">'.&mt('Username').'</a>');
+     } else {
+ 	$r->print('<a href = "?sortedby=revuser'.$fsqs.'">'.&mt('Username').'</a>');
+     }
+     $r->print('</th><th>');
+     if ($env{'form.sortedby'} eq "revdomain") {
+ 	$r->print('<a href = "?sortedby=domain'.$fsqs.'">'.&mt('Domain').'</a>');
+     } else {
+ 	$r->print('<a href = "?sortedby=revdomain'.$fsqs.'">'.&mt('Domain').'</a>');
+     }
+     $r->print('</th><th>');
+     if ($env{'form.sortedby'} eq "revsubject") {
+ 	$r->print('<a href = "?sortedby=subject'.$fsqs.'">'.&mt('Subject').'</a>');
+     } else {
+     	$r->print('<a href = "?sortedby=revsubject'.$fsqs.'">'.&mt('Subject').'</a>');
+     }
+     $r->print('</th><th>');
+     if ($env{'form.sortedby'} eq "revstatus") {
+ 	$r->print('<a href = "?sortedby=status'.$fsqs.'">'.&mt('Status').'</a></th>');
+     } else {
+      	$r->print('<a href = "?sortedby=revstatus'.$fsqs.'">'.&mt('Status').'</a></th>');
+     }
+     $r->print("</tr>\n");
+     for (my $n=$firstdis;$n<=$lastdis;$n++) {
+ 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$origID)= @{$temp[$n]};
  	if (($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">');
  	    }
- 	    $r->print('<td><a href="/adm/email?display='.$_.
+ 	    $r->print('<td><input type="checkbox" name="delmark_'.$origID.'" /></td><td><a href="/adm/email?display='.$origID.$sqs.
- 		      '">Open</a></td><td><a href="/adm/email?markdel='.$_.
+ 		      '">'.&mt('Open').'</a></td><td>'.
- 		      '">Delete</a><input type=checkbox name="delmark_'.$_.'"></td>'.
+ 		      ($folder ne 'trash'?'<a href="/adm/email?markdel='.$origID.$sqs.
- 		      '<td>'.localtime($sendtime).'</td><td>'.
+ 		      '">'.&mt('Delete'):'&nbsp').'</a></td>'.
+ 		      '<td>'.&Apache::lonlocal::locallocaltime($sendtime).'</td><td>'.
  		      $fromname.'</td><td>'.$fromdomain.'</td><td>'.
  		      &Apache::lonnet::unescape($shortsubj).'</td><td>'.
-                       $status.'</td></tr>');
+                       $status."</td></tr>\n");
+ 	} elsif ($status eq 'deleted') {
+ # purge
+ 	    &movemsg(&Apache::lonnet::unescape($origID),$folder,'trash');
  	}
+     }
+     $r->print("</table>\n<p>".
+   '<a href="javascript:checkall()">'.&mt('Check All').'</a>&nbsp;'.
+   '<a href="javascript:uncheckall()">'.&mt('Uncheck All').'</a></p>'.
+   '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />');
+     if ($folder ne 'trash') {
+ 	$r->print(
+ 	      '<p><input type="submit" name="markeddel" value="'.&mt('Delete Checked').'" /></p>');
+     }
+     $r->print('<p><input type="submit" name="markedmove" value="'.&mt('Move Checked to Folder').'" />');
+     my @allfolders=&Apache::lonnet::getkeys('email_folders');
+     if ($allfolders[0]=~/^error:/) { @allfolders=(); }
+     $r->print(
+ 	&Apache::loncommon::select_form('','movetofolder',
+ 			     ( map { $_ => $_ } @allfolders))
+ 	      );
+     my $postedstartdis=$startdis+1;
+     $r->print('<input type="hidden" name="folder" value="'.$folder.'" /><input type="hidden" name="startdis" value="'.$postedstartdis.'" /><input type="hidden" name="interdis" value="'.$env{'form.interdis'}.'" /></form>');
+     if ($numblocked > 0) {
+         my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
+         my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
+         $r->print('<br /><br />'.
+                   $numblocked.' '.&mt('message(s) is/are not viewable because display of LON-CAPA messages sent to you by other students between').' '.$beginblock.' '.&mt('and').' '.$finishblock.' '.&mt('is currently being blocked because of online exams.'));
+         &build_block_table($r,$startblock,$endblock,\%setters);
      }
-     $r->print('</table><p>'.
-               '<a href="javascript:checkall()">Check All</a>&nbsp;'.
-               '<a href="javascript:uncheckall()">Uncheck All</a><p>'.
-               '<input type=submit name="markeddel" value="Delete Checked">'.
-               '</form></body></html>');
  }
  # ============================================================== Compose output
  sub compout {
-     my ($r,$forwarding,$broadcast)=@_;
+     my ($r,$forwarding,$replying,$broadcast,$replycrit,$folder,$dismode)=@_;
-       my $dispcrit='';
+     my $suffix=&foldersuffix($folder);
+     if ($broadcast eq 'individual') {
+ 	&printheader($r,'/adm/email?compose=individual',
+ 	     'Send a Message');
+     } elsif ($broadcast) {
+ 	&printheader($r,'/adm/email?compose=group',
+ 	     'Broadcast Message');
+     } elsif ($forwarding) {
+ 	&Apache::lonhtmlcommon::add_breadcrumb
+         ({href=>"/adm/email?display=".&Apache::lonnet::escape($forwarding),
+           text=>"Display Message"});
+ 	&printheader($r,'/adm/email?forward='.&Apache::lonnet::escape($forwarding),
+ 	     'Forwarding a Message');
+     } elsif ($replying) {
+ 	&Apache::lonhtmlcommon::add_breadcrumb
+         ({href=>"/adm/email?display=".&Apache::lonnet::escape($replying),
+           text=>"Display Message"});
+ 	&printheader($r,'/adm/email?replyto='.&Apache::lonnet::escape($replying),
+ 	     'Replying to a Message');
+     } elsif ($replycrit) {
+ 	$r->print('<h3>'.&mt('Replying to a Critical Message').'</h3>');
+ 	$replying=$replycrit;
+     } else {
+ 	&printheader($r,'/adm/email?compose=upload',
+ 	     'Distribute from Uploaded File');
+     }
+     my $dispcrit='';
      my $dissub='';
      my $dismsg='';
-     my $func='Send New';
+     my $disbase='';
-       if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
+     my $func=&mt('Send New');
+     my %lt=&Apache::lonlocal::texthash('us' => 'Username',
+ 				       'do' => 'Domain',
+ 				       'ad' => 'Additional Recipients',
+ 				       'sb' => 'Subject',
+ 				       'ca' => 'Cancel',
+ 				       'ma' => 'Mail');
+     if (&Apache::lonnet::allowed('srm',$env{'request.course.id'})) {
  	 my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
           $dispcrit=
-  '<input type=checkbox name=critmsg> Send as critical message ' . $crithelp .
+  '<p><label><input type="checkbox" name="critmsg" /> '.&mt('Send as critical message').'</label> ' . $crithelp .
-  '<br>'.
+  '</p><p>'.
-  '<input type=checkbox name=sendbck> Send as critical message ' .
+  '<label><input type="checkbox" name="sendbck" /> '.&mt('Send as critical message').'  ' .
-  ' and return receipt' . $crithelp . '<p>';
+  &mt('and return receipt') . '</label>' . $crithelp .
-       }
+  '</p><p><label><input type="checkbox" name="permanent" /> '.
+ &mt('Send copy to permanent email address (if known)').'</label></p>';
+      }
+     my %message;
+     my %content;
+     my $defdom=$env{'user.domain'};
      if ($forwarding) {
-        $dispcrit.='<input type=hidden name=forwid value="'.
+ 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$forwarding]);
- 	   $forwarding.'">';
+ 	%content=&unpackagemsg($message{$forwarding},$folder);
-        $func='Forward';
+ 	$dispcrit.='<input type="hidden" name="forwid" value="'.
-       my %message=&Apache::lonnet::get('nohist_email',[$forwarding]);
+ 	    $forwarding.'" />';
-       my %content=&unpackagemsg($message{$forwarding});
+ 	$func=&mt('Forward');
-        $dissub='Forwarding: '.$content{'subject'};
+ 	$dissub=&mt('Forwarding').': '.$content{'subject'};
-        $dismsg='Forwarded message from '.
+ 	$dismsg=&mt('Forwarded message from').' '.
- 	   $content{'sendername'}.' at '.$content{'senderdomain'};
+ 	    $content{'sendername'}.' '.&mt('at').' '.$content{'senderdomain'};
+ 	if ($content{'baseurl'}) {
+ 	    $disbase='<input type="hidden" name="baseurl" value="'.&Apache::lonnet::escape($content{'baseurl'}).'" />';
+ 	}
      }
-     my $defdom=$ENV{'user.domain'};
+     if ($replying) {
-     if ($ENV{'form.recdom'}) { $defdom=$ENV{'form.recdom'}; }
+ 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$replying]);
+ 	%content=&unpackagemsg($message{$replying},$folder);
+ 	$dispcrit.='<input type="hidden" name="replyid" value="'.
+ 	    $replying.'" />';
+ 	$func=&mt('Send Reply to');
+ 	$dissub=&mt('Reply').': '.$content{'subject'};
+ 	$dismsg='> '.$content{'message'};
+ 	$dismsg=~s/\r/\n/g;
+ 	$dismsg=~s/\f/\n/g;
+ 	$dismsg=~s/\n+/\n\> /g;
+ 	if ($content{'baseurl'}) {
+ 	    $disbase='<input type="hidden" name="baseurl" value="'.&Apache::lonnet::escape($content{'baseurl'}).'" />';
+ 	    if ($env{'user.adv'}) {
+ 		$disbase.='<label><input type="checkbox" name="storebasecomment" />'.&mt('Store message for re-use').
+ 		    '</label> <a href="/adm/email?showcommentbaseurl='.
+ 		    &Apache::lonnet::escape($content{'baseurl'}).'" target="comments">'.
+ 		    &mt('Show re-usable messages').'</a><br />';
+ 	    }
+ 	}
+     }
+     my $citation=&displayresource(%content);
+     if ($env{'form.recdom'}) { $defdom=$env{'form.recdom'}; }
        $r->print(
                  '<form action="/adm/email"  name="compemail" method="post"'.
                  ' enctype="multipart/form-data">'."\n".
-                 '<input type="hidden" name="sendmail" value="on">'."\n".
+                 '<input type="hidden" name="sendmail" value="on" />'."\n".
                  '<table>');
      unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {
-         my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
+ 	if ($replying) {
+ 	    $r->print('<tr><td colspan="2">'.&mt('Replying to').' '.
-        $r->print(<<"ENDREC");
+ 		      &Apache::loncommon::aboutmewrapper(
- <table>
+ 							 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).' ('.
- <tr><td>Username:</td><td><input type=text size=12 name=recuname value="$ENV{'form.recname'}"></td></tr>
+ 		      $content{'sendername'}.'@'.
- <tr><td>Domain:</td>
+ 		      $content{'senderdomain'}.')'.
+ 		      '<input type="hidden" name="recuname" value="'.$content{'sendername'}.'" />'.
+ 		      '<input type="hidden" name="recdomain" value="'.$content{'senderdomain'}.'" />'.
+ 		      '</td></tr>');
+ 	} else {
+ 	    my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
+ 	    my $selectlink=&Apache::loncommon::selectstudent_link
+ 	    ('compemail','recuname','recdomain');
+ 	    $r->print(<<"ENDREC");
+ <tr><td>$lt{'us'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recname'}" /></td><td rowspan="2">$selectlink</td></tr>
+ <tr><td>$lt{'do'}:</td>
  <td>$domform</td></tr>
  ENDREC
+         }
      }
+     my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
      if ($broadcast ne 'upload') {
         $r->print(<<"ENDCOMP");
- <tr><td>Additional Recipients<br><tt>username\@domain,username\@domain, ...
+ <tr><td>$lt{'ad'}<br /><tt>username\@domain,username\@domain, ...
  </tt></td><td>
- <input type=text size=50 name=additionalrec></td></tr>
+ <input type="text" size="50" name="additionalrec" /></td></tr>
- <tr><td>Subject:</td><td><input type=text size=50 name=subject value="$dissub">
+ <tr><td>$lt{'sb'}:</td><td><input type="text" size="50" name="subject" value="$dissub" />
  </td></tr></table>
- <textarea name=message cols=80 rows=10 wrap=hard>$dismsg
+ $latexHelp
- </textarea><p>
+ <textarea name="message" cols="80" rows="15" wrap="hard">$dismsg
+ </textarea></p><br />
  $dispcrit
- <input type=submit value="$func Mail">
+ $disbase
+ <input type="hidden" name="folder" value="$folder" />
+ <input type="hidden" name="dismode" value="$dismode" />
+ <input type="submit" name="send" value="$func $lt{'ma'}" />
+ <input type="submit" name="cancel" value="$lt{'ca'}" /><hr />
+ $citation
  ENDCOMP
      } else { # $broadcast is 'upload'
  	$r->print(<<ENDUPLOAD);
- <input type=hidden name=sendmode value=upload>
+ <input type="hidden" name="sendmode" value="upload" />
+ <input type="hidden" name="send" value="on" />
  <h3>Generate messages from a file</h3>
  <p>
- Subject: <input type=text size=50 name=subject>
+ Subject: <input type="text" size="50" name="subject" />
  </p>
  <p>General message text<br />
- <textarea name=message cols=60 rows=10 wrap=hard>$dismsg
+ <textarea name="message" cols="60" rows="10" wrap="hard">$dismsg
  </textarea></p>
  <p>
  The file format for the uploaded portion of the message is:
- Line 554  username3\@domain1: text
+ Line 1204  username3\@domain1: text
  The messages will be assembled from all lines with the respective
  <tt>username\@domain</tt>, and appended to the general message text.</p>
  <p>
- <input type=file name=upfile size=20><p>
+ <input type="file" name="upfile" size="40" /></p><p>
  $dispcrit
- <input type=submit value="Upload and send">
+ <input type="submit" value="Upload and Send" /></p>
  ENDUPLOAD
      }
      if ($broadcast eq 'group') {
- Line 565  ENDUPLOAD
+ Line 1215  ENDUPLOAD
      $r->print('</form>');
  }
+ # ---------------------------------------------------- Display all face to face
+ sub retrieve_instructor_comments {
+     my ($user,$domain)=@_;
+     my $target=$env{'form.grade_target'};
+     if (! $env{'request.course.id'}) { return; }
+     if (! &Apache::lonnet::allowed('srm',$env{'request.course.id'})) {
+ 	return;
+     }
+     my %records=&Apache::lonnet::dump('nohist_email',
+ 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
+ 			 $env{'course.'.$env{'request.course.id'}.'.num'},
+                          '%255b'.$user.'%253a'.$domain.'%255d');
+     my $result='';
+     foreach (sort(keys(%records))) {
+         my %content=&unpackagemsg($records{$_});
+         next if ($content{'senderdomain'} eq '');
+         next if ($content{'subject'} !~ /^Record/);
+         # $content{'message'}=~s/\n/\<br\>/g;
+         $result.='Recorded by '.
+             $content{'sendername'}.'@'.$content{'senderdomain'}."\n";
+         $result.=
+             &Apache::lontexconvert::msgtexconverted($content{'message'})."\n";
+      }
+     return $result;
+ }
+ sub disfacetoface {
+     my ($r,$user,$domain)=@_;
+     my $target=$env{'form.grade_target'};
+     unless ($env{'request.course.id'}) { return; }
+     unless (&Apache::lonnet::allowed('srm',$env{'request.course.id'})) {
+ 	return;
+     }
+     my %records=&Apache::lonnet::dump('nohist_email',
+ 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
+ 			 $env{'course.'.$env{'request.course.id'}.'.num'},
+                          '%255b'.$user.'%253a'.$domain.'%255d');
+     my $result='';
+     foreach (sort keys %records) {
+         my %content=&unpackagemsg($records{$_});
+         next if ($content{'senderdomain'} eq '');
+         $content{'message'}=~s/\n/\<br\>/g;
+         if ($content{'subject'}=~/^Record/) {
+ 	    $result.='<h3>'.&mt('Record').'</h3>';
+         } elsif ($content{'subject'}=~/^Broadcast/) {
+             $result .='<h3>'.&mt('Broadcast Message').'</h3>';
+         } else {
+             $result.='<h3>'.&mt('Critical Message').'</h3>';
+             %content=&unpackagemsg($content{'message'});
+             $content{'message'}=
+                 '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
+ 		$content{'message'};
+         }
+         $result.=&mt('By').': <b>'.
+ &Apache::loncommon::aboutmewrapper(
+  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
+ $content{'sendername'}.'@'.
+             $content{'senderdomain'}.') '.$content{'time'}.
+             '<br /><pre>'.
+               &Apache::lontexconvert::msgtexconverted($content{'message'}).
+ 	      '</pre>';
+      }
+     # Check to see if there were any messages.
+     if ($result eq '') {
+ 	if ($target ne 'tex') {
+ 	    $r->print("<p><b>".&mt("No notes, face-to-face discussion records, critical messages, or broadcast messages in this course.")."</b></p>");
+ 	} else {
+ 	    $r->print('\textbf{'.&mt("No notes, face-to-face discussion records, critical messages or broadcast messages in this course.").'}\\\\');
+ 	}
+     } else {
+        $r->print($result);
+     }
+ }
+ # ---------------------------------------------------------------- Face to face
+ sub facetoface {
+     my ($r,$stage)=@_;
+     unless (&Apache::lonnet::allowed('srm',$env{'request.course.id'})) {
+ 	return;
+     }
+     &printheader($r,
+ 		 '/adm/email?recordftf=query',
+ 		 "User Notes, Face-to-Face, Critical Messages, Broadcast Messages");
+ # from query string
+     if ($env{'form.recname'}) { $env{'form.recuname'}=$env{'form.recname'}; }
+     if ($env{'form.recdom'}) { $env{'form.recdomain'}=$env{'form.recdom'}; }
+     my $defdom=$env{'user.domain'};
+ # already filled in
+     if ($env{'form.recdomain'}) { $defdom=$env{'form.recdomain'}; }
+ # generate output
+     my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
+     my $stdbrws = &Apache::loncommon::selectstudent_link
+ 	('stdselect','recuname','recdomain');
+     my %lt=&Apache::lonlocal::texthash('user' => 'Username',
+ 				       'dom' => 'Domain',
+ 				       'head' => 'User Notes, Records of Face-To-Face Discussions, Critical Messages, and Broadcast Messages in Course',
+ 				       'subm' => 'Retrieve discussion and message records',
+ 				       'newr' => 'New Record (record is visible to course faculty and staff)',
+ 				       'post' => 'Post this Record');
+     $r->print(<<"ENDTREC");
+ <h3>$lt{'head'}</h3>
+ <form method="post" action="/adm/email" name="stdselect">
+ <input type="hidden" name="recordftf" value="retrieve" />
+ <table>
+ <tr><td>$lt{'user'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recuname'}" /></td>
+ <td rowspan="2">
+ $stdbrws
+ <input type="submit" value="$lt{'subm'}" /></td>
+ </tr>
+ <tr><td>$lt{'dom'}:</td>
+ <td>$domform</td></tr>
+ </table>
+ </form>
+ ENDTREC
+     if (($stage ne 'query') &&
+         ($env{'form.recdomain'}) && ($env{'form.recuname'})) {
+         chomp($env{'form.newrecord'});
+         if ($env{'form.newrecord'}) {
+            &user_normal_msg_raw(
+             $env{'course.'.$env{'request.course.id'}.'.num'},
+             $env{'course.'.$env{'request.course.id'}.'.domain'},
+             &mt('Record').
+ 	     ' ['.$env{'form.recuname'}.':'.$env{'form.recdomain'}.']',
+ 	    $env{'form.newrecord'});
+         }
+         $r->print('<h3>'.&Apache::loncommon::plainname($env{'form.recuname'},
+ 				     $env{'form.recdomain'}).'</h3>');
+         &disfacetoface($r,$env{'form.recuname'},$env{'form.recdomain'});
+ 	$r->print(<<ENDRHEAD);
+ <form method="post" action="/adm/email">
+ <input name="recdomain" value="$env{'form.recdomain'}" type="hidden" />
+ <input name="recuname" value="$env{'form.recuname'}" type="hidden" />
+ ENDRHEAD
+         $r->print(<<ENDBFORM);
+ <hr />$lt{'newr'}<br />
+ <textarea name="newrecord" cols="80" rows="10" wrap="hard"></textarea>
+ <br />
+ <input type="hidden" name="recordftf" value="post" />
+ <input type="submit" value="$lt{'post'}" />
+ </form>
+ ENDBFORM
+     }
+ }
+ # ----------------------------------------------------------- Blocking during exams
+ sub examblock {
+     my ($r,$action) = @_;
+     unless ($env{'request.course.id'}) { return;}
+     unless (&Apache::lonnet::allowed('srm',$env{'request.course.id'})) { $r->print('Not allowed'); }
+     my %lt=&Apache::lonlocal::texthash(
+             'comb' => 'Communication Blocking',
+             'cbds' => 'Communication blocking during scheduled exams',
+             'desc' => 'You can use communication blocking to prevent students enrolled in this course from displaying LON-CAPA messages sent by other students during an online exam. As blocking of communication could potentially interrupt legitimate communication between students who are also both enrolled in a different LON-CAPA course, please be careful that you select the correct start and end times for your scheduled exam when setting or modifying these parameters.',
+              'mecb' => 'Modify existing communication blocking periods',
+              'ncbc' => 'No communication blocks currently stored'
+     );
+     my %ltext = &Apache::lonlocal::texthash(
+             'dura' => 'Duration',
+             'setb' => 'Set by',
+             'even' => 'Event',
+             'actn' => 'Action',
+             'star' => 'Start',
+             'endd' => 'End'
+     );
+     &printheader($r,'/adm/email?block=display',$lt{'comb'});
+     $r->print('<h3>'.$lt{'cbds'}.'</h3>');
+     if ($action eq 'store') {
+         &blockstore($r);
+     }
+     $r->print($lt{'desc'}.'<br /><br />
+                <form name="blockform" method="post" action="/adm/email?block=store">
+              ');
+     $r->print('<h4>'.$lt{'mecb'}.'</h4>');
+     my %records = ();
+     my $blockcount = 0;
+     my $parmcount = 0;
+     &get_blockdates(\%records,\$blockcount);
+     if ($blockcount > 0) {
+         $parmcount = &display_blocker_status($r,\%records,\%ltext);
+     } else {
+         $r->print($lt{'ncbc'}.'<br /><br />');
+     }
+     &display_addblocker_table($r,$parmcount,\%ltext);
+     my $endbody=&Apache::loncommon::endbodytag();
+     $r->print(<<"END");
+ <br />
+ <input type="hidden" name="blocktotal" value="$blockcount" />
+ <input type ="submit" value="Save Changes" />
+ </form>
+ $endbody
+ </html>
+ END
+     return;
+ }
+ sub blockstore {
+     my $r = shift;
+     my %lt=&Apache::lonlocal::texthash(
+             'tfcm' => 'The following changes were made',
+             'cbps' => 'communication blocking period(s)',
+             'werm' => 'was/were removed',
+             'wemo' => 'was/were modified',
+             'wead' => 'was/were added',
+             'ncwm' => 'No changes were made.'
+     );
+     my %adds = ();
+     my %removals = ();
+     my %cancels = ();
+     my $modtotal = 0;
+     my $canceltotal = 0;
+     my $addtotal = 0;
+     my %blocking = ();
+     $r->print('<h3>'.$lt{'head'}.'</h3>');
+     foreach (keys %env) {
+         if ($_ =~ m/^form\.modify_(\w+)$/) {
+             $adds{$1} = $1;
+             $removals{$1} = $1;
+             $modtotal ++;
+         } elsif ($_ =~ m/^form\.cancel_(\d+)$/) {
+             $cancels{$1} = $1;
+             unless ( defined($removals{$1}) ) {
+                 $removals{$1} = $1;
+                 $canceltotal ++;
+             }
+         } elsif ($_ =~ m/^form\.add_(\d+)$/) {
+             $adds{$1} = $1;
+             $addtotal ++;
+         }
+     }
+     foreach (keys %removals) {
+         my $hashkey = $env{'form.key_'.$_};
+         &Apache::lonnet::del('comm_block',["$hashkey"],
+                          $env{'course.'.$env{'request.course.id'}.'.domain'},
+                          $env{'course.'.$env{'request.course.id'}.'.num'}
+                          );
+     }
+     foreach (keys %adds) {
+         unless ( defined($cancels{$_}) ) {
+             my ($newstart,$newend) = &get_dates_from_form($_);
+             my $newkey = $newstart.'____'.$newend;
+             $blocking{$newkey} = $env{'user.name'}.'@'.$env{'user.domain'}.':'.$env{'form.title_'.$_};
+         }
+     }
+     if ($addtotal + $modtotal > 0) {
+         &Apache::lonnet::put('comm_block',\%blocking,
+                      $env{'course.'.$env{'request.course.id'}.'.domain'},
+                      $env{'course.'.$env{'request.course.id'}.'.num'}
+                      );
+     }
+     my $chgestotal = $canceltotal + $modtotal + $addtotal;
+     if ($chgestotal > 0) {
+         $r->print($lt{'tfcm'}.'<ul>');
+         if ($canceltotal > 0) {
+             $r->print('<li>'.$canceltotal.' '.$lt{'cbps'},' '.$lt{'werm'}.'</li>');
+         }
+         if ($modtotal > 0) {
+             $r->print('<li>'.$modtotal.' '.$lt{'cbps'},' '.$lt{'wemo'}.'</li>');
+         }
+         if ($addtotal > 0) {
+             $r->print('<li>'.$addtotal.' '.$lt{'cbps'},' '.$lt{'wead'}.'</li>');
+         }
+         $r->print('</ul>');
+     } else {
+         $r->print($lt{'ncwm'});
+     }
+     $r->print('<br />');
+     return;
+ }
+ sub get_dates_from_form {
+     my $item = shift;
+     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$item);
+     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$item);
+     return ($startdate,$enddate);
+ }
+ sub get_blockdates {
+     my ($records,$blockcount) = @_;
+     $$blockcount = 0;
+     %{$records} = &Apache::lonnet::dump('comm_block',
+                          $env{'course.'.$env{'request.course.id'}.'.domain'},
+                          $env{'course.'.$env{'request.course.id'}.'.num'}
+                          );
+     $$blockcount = keys %{$records};
+     foreach (keys %{$records}) {
+         if ($_ eq 'error: 2 tie(GDBM) Failed while attempting dump') {
+             $$blockcount = 0;
+             last;
+         }
+     }
+ }
+ sub display_blocker_status {
+     my ($r,$records,$ltext) = @_;
+     my $parmcount = 0;
+     my @bgcols = ("#eeeeee","#dddddd");
+     my $function = &Apache::loncommon::get_users_function();
+     my $color = &Apache::loncommon::designparm($function.'.tabbg',
+                                                     $env{'user.domain'});
+     my %lt = &Apache::lonlocal::texthash(
+         'modi' => 'Modify',
+         'canc' => 'Cancel',
+     );
+     $r->print(<<"END");
+ <table border="0" cellpadding="0" cellspacing="0">
+  <tr>
+   <td width="100%" bgcolor="#000000">
+    <table width="100%" border="0" cellpadding="1" cellspacing="0">
+     <tr>
+      <td width="100%" bgcolor="#000000">
+       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
+        <tr bgcolor="$color">
+         <td><b>$$ltext{'dura'}</b></td>
+         <td><b>$$ltext{'setb'}</b></td>
+         <td><b>$$ltext{'even'}</b></td>
+         <td><b>$$ltext{'actn'}?</b></td>
+        </tr>
+ END
+     foreach (sort keys %{$records}) {
+         my $iter = $parmcount%2;
+         my $onchange = 'onFocus="javascript:window.document.forms['.
+                        "'blockform'].elements['modify_".$parmcount."'].".
+                        'checked=true;"';
+         my ($start,$end) = split/____/,$_;
+         my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
+         my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
+         my ($setter,$title) = split/:/,$$records{$_};
+         my ($setuname,$setudom) = split/@/,$setter;
+         my $settername = &Apache::loncommon::plainname($setuname,$setudom);
+         $r->print(<<"END");
+        <tr bgcolor="$bgcols[$iter]">
+         <td>$$ltext{'star'}:&nbsp;$startform<br/>$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
+         <td>$settername</td>
+         <td><input type="text" name="title_$parmcount" size="15" value="$title" /><input type="hidden" name="key_$parmcount" value="$_" /></td>
+         <td><label>$lt{'modi'}?&nbsp;<input type="checkbox" name="modify_$parmcount" /></label><br /><label>$lt{'canc'}?&nbsp;&nbsp;<input type="checkbox" name="cancel_$parmcount" /></label>
+        </tr>
+ END
+         $parmcount ++;
+     }
+     $r->print(<<"END");
+       </table>
+      </td>
+     </tr>
+    </table>
+   </td>
+  </tr>
+ </table>
+ <br />
+ <br />
+ END
+     return $parmcount;
+ }
+ sub display_addblocker_table {
+     my ($r,$parmcount,$ltext) = @_;
+     my $start = time;
+     my $end = $start + (60 * 60 * 2); #Default is an exam of 2 hours duration.
+     my $onchange = 'onFocus="javascript:window.document.forms['.
+                    "'blockform'].elements['add_".$parmcount."'].".
+                    'checked=true;"';
+     my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
+     my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
+     my $function = &Apache::loncommon::get_users_function();
+     my $color = &Apache::loncommon::designparm($function.'.tabbg',
+                                                     $env{'user.domain'});
+     my %lt = &Apache::lonlocal::texthash(
+         'addb' => 'Add block',
+         'exam' => 'e.g., Exam 1',
+         'addn' => 'Add new communication blocking periods'
+     );
+     $r->print(<<"END");
+ <h4>$lt{'addn'}</h4>
+ <table border="0" cellpadding="0" cellspacing="0">
+  <tr>
+   <td width="100%" bgcolor="#000000">
+    <table width="100%" border="0" cellpadding="1" cellspacing="0">
+     <tr>
+      <td width="100%" bgcolor="#000000">
+       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
+        <tr bgcolor="#CCCCFF">
+         <td><b>$$ltext{'dura'}</b></td>
+         <td><b>$$ltext{'even'} $lt{'exam'}</b></td>
+         <td><b>$$ltext{'actn'}?</b></td>
+        </tr>
+        <tr bgcolor="#eeeeee">
+         <td>$$ltext{'star'}:&nbsp;$startform<br />$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
+         <td><input type="text" name="title_$parmcount" size="15" value="" /></td>
+         <td><label>$lt{'addb'}?&nbsp;<input type="checkbox" name="add_$parmcount" value="1" /></label></td>
+        </tr>
+       </table>
+      </td>
+     </tr>
+    </table>
+   </td>
+  </tr>
+ </table>
+ END
+     return;
+ }
+ sub blockcheck {
+     my ($setters,$startblock,$endblock) = @_;
+     # Retrieve active student roles and active course coordinator/instructor roles
+     my @livecses = ();
+     my @staffcses = ();
+     $$startblock = 0;
+     $$endblock = 0;
+     foreach (keys %env) {
+         if ($_ =~ m-^user\.role\.(st|cc|in)\./(.+)$-) {
+             my $role = $1;
+             my $cse = $2;
+             $cse =~ s|/|_|;
+             if ($env{$_} =~ m/^(\d*)\.(\d*)$/) {
+                 unless (($2 > 0 && $2 < time) || ($1 > time)) {
+                     if ($role eq 'st') {
+                         push @livecses, $cse;
+                     } else {
+                         unless (grep/^$cse$/,@staffcses) {
+                             push @staffcses, $cse;
+                         }
+                     }
+                 }
+             }
+         } elsif ($_ =~ m-user\.role\.cr/(\w+)/(\w+)/([^/]+)\./(.+)$- ) {
+             my $rolepriv = $env{'user.role..rolesdef_'.$3};
+         }
+     }
+     # Retrieve blocking times and identity of blocker for active courses for students.
+     if (@livecses > 0) {
+         foreach my $cse (@livecses) {
+             my ($cdom,$crs) = split/_/,$cse;
+             if ( (grep/^$cse$/,@staffcses) && ($env{'request.role'} !~ m-^st\./$cdom/$crs$-) ) {
+                 next;
+             } else {
+                 %{$$setters{$cse}} = ();
+                 @{$$setters{$cse}{'staff'}} = ();
+                 @{$$setters{$cse}{'times'}} = ();
+                 my %records = &Apache::lonnet::dump('comm_block',$cdom,$crs);
+                 foreach (keys %records) {
+                     if ($_ =~ m/^(\d+)____(\d+)$/) {
+                         if ($1 <= time && $2 >= time) {
+                             my ($staff,$title) = split/:/,$records{$_};
+                             push @{$$setters{$cse}{'staff'}}, $staff;
+                             push @{$$setters{$cse}{'times'}}, $_;
+                             if ( ($$startblock == 0) || ($$startblock > $1) ) {
+                                 $$startblock = $1;
+                             }
+                             if ( ($$endblock == 0) || ($$endblock < $2) ) {
+                                 $$endblock = $2;
+                             }
+                         }
+                     }
+                 }
+             }
+         }
+     }
+ }
+ sub build_block_table {
+     my ($r,$startblock,$endblock,$setters) = @_;
+     my $function = &Apache::loncommon::get_users_function();
+     my $color = &Apache::loncommon::designparm($function.'.tabbg',
+                                                     $env{'user.domain'});
+     my %lt = &Apache::lonlocal::texthash(
+         'cacb' => 'Currently active communication blocks',
+         'cour' => 'Course',
+         'dura' => 'Duration',
+         'blse' => 'Block set by'
+     );
+     $r->print(<<"END");
+ <br /<br />$lt{'cacb'}:<br /><br />
+ <table border="0" cellpadding="0" cellspacing="0">
+  <tr>
+   <td width="100%" bgcolor="#000000">
+    <table width="100%" border="0" cellpadding="1" cellspacing="0">
+     <tr>
+      <td width="100%" bgcolor="#000000">
+       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
+        <tr bgcolor="$color">
+         <td><b>$lt{'cour'}</b></td>
+         <td><b>$lt{'dura'}</b></td>
+         <td><b>$lt{'blse'}</b></td>
+        </tr>
+ END
+     foreach (keys %{$setters}) {
+         my %courseinfo=&Apache::lonnet::coursedescription($_);
+         for (my $i=0; $i<@{$$setters{$_}{staff}}; $i++) {
+             my ($uname,$udom) = split/\@/,$$setters{$_}{staff}[$i];
+             my $fullname = &Apache::loncommon::plainname($uname,$udom);
+             my ($openblock,$closeblock) = split/____/,$$setters{$_}{times}[$i];
+             $openblock = &Apache::lonlocal::locallocaltime($openblock);
+             $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
+             $r->print('<tr><td>'.$courseinfo{'description'}.'</td>'.
+                       '<td>'.$openblock.' to '.$closeblock.'</td>'.
+                       '<td>'.$fullname.' ('.$uname.'@'.$udom.
+                       ')</td></tr>');
+         }
+     }
+     $r->print('</table></td></tr></table></td></tr></table>');
+ }
+ # ----------------------------------------------------------- Display a message
+ sub displaymessage {
+     my ($r,$msgid,$folder)=@_;
+     my $suffix=&foldersuffix($folder);
+     my %blocked = ();
+     my %setters = ();
+     my $startblock = 0;
+     my $endblock = 0;
+     my $numblocked = 0;
+ # info to generate "next" and "previous" buttons and check if message is blocked
+     &blockcheck(\%setters,\$startblock,\$endblock);
+     my @messages=&sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder);
+     if ( $blocked{$msgid} eq 'ON' ) {
+         &printheader($r,'/adm/email',&mt('Display a Message'));
+         $r->print(&mt('You attempted to display a message that is currently blocked because you are enrolled in one or more courses for which there is an ongoing online exam.'));
+         &build_block_table($r,$startblock,$endblock,\%setters);
+         return;
+     }
+     &statuschange($msgid,'read',$folder);
+     my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
+     my %content=&unpackagemsg($message{$msgid});
+     my $counter=0;
+     $r->print('<pre>');
+     my $escmsgid=&Apache::lonnet::escape($msgid);
+     foreach (@messages) {
+ 	if ($_->[5] eq $escmsgid){
+ 	    last;
+ 	}
+ 	$counter++;
+     }
+     $r->print('</pre>');
+     my $number_of_messages = scalar(@messages); #subtract 1 for last index
+ # start output
+     &printheader($r,'/adm/email?display='.&Apache::lonnet::escape($msgid),'Display a Message','',$content{'baseurl'});
+     my %courseinfo=&Apache::lonnet::coursedescription($content{'courseid'});
+ # Functions
+     $r->print('<table border="2" width="100%"><tr bgcolor="#FFFFAA"><td>'.&mt('Functions').':</td>'.
+ 	      '<td><a href="/adm/email?replyto='.&Apache::lonnet::escape($msgid).$sqs.
+ 	      '"><b>'.&mt('Reply').'</b></a></td>'.
+ 	      '<td><a href="/adm/email?forward='.&Apache::lonnet::escape($msgid).$sqs.
+ 	      '"><b>'.&mt('Forward').'</b></a></td>'.
+ 	      '<td><a href="/adm/email?markunread='.&Apache::lonnet::escape($msgid).$sqs.
+ 	      '"><b>'.&mt('Mark Unread').'</b></a></td>'.
+ 	      '<td><a href="/adm/email?markdel='.&Apache::lonnet::escape($msgid).$sqs.
+ 	      '"><b>Delete</b></a></td>'.
+ 	      '<td><a href="/adm/email?'.$sqs.
+ 	      ($env{'form.dismode'} eq 'new'?'&folder=new':'').
+ 	      '"><b>'.&mt('Back to Folder Display').'</b></a></td>');
+     if ($counter > 0){
+ 	$r->print('<td><a href="/adm/email?display='.$messages[$counter-1]->[5].$sqs.
+ 		  '"><b>'.&mt('Previous').'</b></a></td>');
+     }
+     if ($counter < $number_of_messages - 1){
+ 	$r->print('<td><a href="/adm/email?display='.$messages[$counter+1]->[5].$sqs.
+ 		  '"><b>'.&mt('Next').'</b></a></td>');
+     }
+     $r->print('</tr></table>');
+     $r->print('<br /><b>'.&mt('Subject').':</b> '.$content{'subject'}.
+ 	      ($folder ne 'sent'?'<br /><b>'.&mt('From').':</b> '.
+ 	      &Apache::loncommon::aboutmewrapper(
+ 						 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),
+ 						 $content{'sendername'},$content{'senderdomain'}).' ('.
+ 	      $content{'sendername'}.' at '.
+ 	      $content{'senderdomain'}.') ':'<br /><b>'.&mt('To').':</b> '.
+ 	      &Apache::loncommon::aboutmewrapper(
+ 						 &Apache::loncommon::plainname($content{'recuser'},$content{'recdomain'}),
+ 						 $content{'recuser'},$content{'recdomain'}).' ('.
+ 	      $content{'recuser'}.' at '.
+ 	      $content{'recdomain'}.') ').
+ 	      ($content{'courseid'}?'<br /><b>'.&mt('Course').':</b> '.$courseinfo{'description'}.
+ 	       ($content{'coursesec'}?' ('.&mt('Group/Section').': '.$content{'coursesec'}.')':''):'').
+ 	      '<br /><b>'.&mt('Time').':</b> '.$content{'time'}.
+ 	      ($content{'baseurl'}?'<br /><b>'.&mt('Refers to').':</b> <a href="'.$content{'baseurl'}.'">'.
+ 	       $content{'baseurl'}.' ('.&Apache::lonnet::gettitle($content{'baseurl'}).')</a>':'').
+ 	      '<p><pre>'.
+ 	      &Apache::lontexconvert::msgtexconverted($content{'message'},1).
+ 	      '</pre><hr />'.&displayresource(%content).'</p>');
+     return;
+ }
+ # =========================================================== Show the citation
+ sub displayresource {
+     my %content=@_;
+ #
+ # If the recipient is in the same course that the message was sent from and
+ # has sufficient privileges, show "all details," else show citation
+ #
+     if (($env{'request.course.id'} eq $content{'courseid'})
+      && (&Apache::lonnet::allowed('vgr',$content{'courseid'}))) {
+ 	my $symb=&Apache::lonnet::symbread($content{'baseurl'});
+ # Could not get a symb, give up
+ 	unless ($symb) { return $content{'citation'}; }
+ # Have a symb, can render
+ 	return '<h2>'.&mt('Current attempts of student (if applicable)').'</h2>'.
+ 	    &Apache::loncommon::get_previous_attempt($symb,
+ 						     $content{'sendername'},
+ 						     $content{'senderdomain'},
+ 						     $content{'courseid'}).
+ 	    '<hr /><h2>'.&mt('Current screen output (if applicable)').'</h2>'.
+ 	    &Apache::loncommon::get_student_view($symb,
+ 						 $content{'sendername'},
+ 						 $content{'senderdomain'},
+ 						 $content{'courseid'}).
+ 	    '<h2>'.&mt('Correct Answer(s) (if applicable)').'</h2>'.
+ 	    &Apache::loncommon::get_student_answers($symb,
+ 						    $content{'sendername'},
+ 						    $content{'senderdomain'},
+ 						    $content{'courseid'});
+     } else {
+ 	return $content{'citation'};
+     }
+ }
+ # ================================================================== The Header
+ sub header {
+     my ($r,$title,$baseurl)=@_;
+     $r->print(&Apache::lonxml::xmlbegin().
+ 	      '<head>'.&Apache::lonxml::fontsettings().
+ 	      '<title>Communication and Messages</title>');
+     if ($baseurl) {
+ 	$r->print("<base href=\"http://$ENV{'SERVER_NAME'}/$baseurl\" />");
+     }
+     $r->print(&Apache::loncommon::studentbrowser_javascript().'</head>'.
+ 	      &Apache::loncommon::bodytag('Communication and Messages'));
+         $r->print(&Apache::lonhtmlcommon::breadcrumbs
+                   (undef,($title?$title:'Communication and Messages')));
+ }
+ # ---------------------------------------------------------------- Print header
+ sub printheader {
+     my ($r,$url,$desc,$title,$baseurl)=@_;
+     &Apache::lonhtmlcommon::add_breadcrumb
+ 	({href=>$url,
+ 	  text=>$desc});
+     &header($r,$title,$baseurl);
+ }
+ # ------------------------------------------------------------ Store the comment
+ sub storecomment {
+     my ($r)=@_;
+     my $msgtxt=&Apache::lonfeedback::clear_out_html($env{'form.message'});
+     my $cleanmsgtxt='';
+     foreach (split(/[\n\r]/,$msgtxt)) {
+ 	unless ($_=~/^\s*(\>|\&gt\;)/) {
+ 	    $cleanmsgtxt.=$_."\n";
+ 	}
+     }
+     my $key=&Apache::lonnet::escape($env{'form.baseurl'}).'___'.time;
+     &Apache::lonnet::put('nohist_stored_comments',{ $key => $cleanmsgtxt });
+ }
+ sub storedcommentlisting {
+     my ($r)=@_;
+     my %msgs=&Apache::lonnet::dump('nohist_stored_comments',undef,undef,
+        '^'.&Apache::lonnet::escape(&Apache::lonnet::escape($env{'form.showcommentbaseurl'})));
+     $r->print(&Apache::lonxml::xmlbegin().'<head>'.
+ 	      &Apache::lonxml::fontsettings().'</head><body>');
+     if ((keys %msgs)[0]=~/^error\:/) {
+ 	$r->print(&mt('No stored comments yet.'));
+     } else {
+ 	my $found=0;
+ 	foreach (sort keys %msgs) {
+ 	    $r->print("\n".$msgs{$_}."<hr />");
+ 	    $found=1;
+ 	}
+ 	unless ($found) {
+ 	    $r->print(&mt('No stored comments yet for this resource.'));
+ 	}
+     }
+ }
+ # ---------------------------------------------------------------- Send an email
+ sub sendoffmail {
+     my ($r,$folder)=@_;
+     my $suffix=&foldersuffix($folder);
+     my $sendstatus='';
+     if ($env{'form.send'}) {
+ 	&printheader($r,'','Messages being sent.');
+ 	$r->rflush();
+ 	my %content=();
+ 	undef %content;
+ 	if ($env{'form.forwid'}) {
+ 	    my $msgid=$env{'form.forwid'};
+ 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
+ 	    %content=&unpackagemsg($message{$msgid},1);
+ 	    &statuschange($msgid,'forwarded',$folder);
+ 	    $env{'form.message'}.="\n\n-- Forwarded message --\n\n".
+ 		$content{'message'};
+ 	}
+ 	if ($env{'form.replyid'}) {
+ 	    my $msgid=$env{'form.replyid'};
+ 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
+ 	    %content=&unpackagemsg($message{$msgid},1);
+ 	    &statuschange($msgid,'replied',$folder);
+ 	}
+ 	my %toaddr=();
+ 	undef %toaddr;
+ 	if ($env{'form.sendmode'} eq 'group') {
+ 	    foreach (keys %env) {
+ 		if ($_=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
+ 		    $toaddr{$1}='';
+ 		}
+ 	    }
+ 	} elsif ($env{'form.sendmode'} eq 'upload') {
+ 	    foreach (split(/[\n\r\f]+/,$env{'form.upfile'})) {
+ 		my ($rec,$txt)=split(/\s*\:\s*/,$_);
+ 		if ($txt) {
+ 		    $rec=~s/\@/\:/;
+ 		    $toaddr{$rec}.=$txt."\n";
+ 		}
+ 	    }
+ 	} else {
+ 	    $toaddr{$env{'form.recuname'}.':'.$env{'form.recdomain'}}='';
+ 	}
+ 	if ($env{'form.additionalrec'}) {
+ 	    foreach (split(/\,/,$env{'form.additionalrec'})) {
+ 		my ($auname,$audom)=split(/\@/,$_);
+ 		$toaddr{$auname.':'.$audom}='';
+ 	    }
+ 	}
+ 	foreach (keys %toaddr) {
+ 	    my ($recuname,$recdomain)=split(/\:/,$_);
+             my $msgtxt;
+             if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
+                 (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
+                 $msgtxt=&Apache::lonfeedback::clear_out_html($env{'form.message'},1);
+             } else {
+ 	        $msgtxt=&Apache::lonfeedback::clear_out_html($env{'form.message'});
+             }
+ 	    if ($toaddr{$_}) { $msgtxt.='<hr />'.$toaddr{$_}; }
+ 	    my $thismsg;
+ 	    if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
+ 		(&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
+ 		$r->print(&mt('Sending critical message').' '.$recuname.'@'.$recdomain.': ');
+ 		$thismsg=&user_crit_msg($recuname,$recdomain,
+ 					&Apache::lonfeedback::clear_out_html($env{'form.subject'}),
+ 					$msgtxt,
+ 					$env{'form.sendbck'},$env{'form.permanent'});
+ 	    } else {
+ 		$r->print(&mt('Sending').' '.$recuname.'@'.$recdomain.': ');
+ 		$thismsg=&user_normal_msg($recuname,$recdomain,
+ 					  &Apache::lonfeedback::clear_out_html($env{'form.subject'}),
+ 					  $msgtxt,
+ 					  $content{'citation'},undef,undef,$env{'form.permanent'});
+ 		if (($env{'request.course.id'}) && ($env{'form.sendmode'} eq 'group')) {
+ 		    &user_normal_msg_raw(
+ 					 $env{'course.'.$env{'request.course.id'}.'.num'},
+ 					 $env{'course.'.$env{'request.course.id'}.'.domain'},
+ 					 'Broadcast ['.$recuname.':'.$recdomain.']',
+ 					 $msgtxt);
+ 		}
+ 	    }
+ 	    $r->print($thismsg.'<br />');
+ 	    $sendstatus.=' '.$thismsg;
+ 	}
+     } else {
+ 	&printheader($r,'','No messages sent.');
+     }
+     if ($sendstatus=~/^(\s*(?:ok|con_delayed)\s*)*$/) {
+ 	$r->print('<br /><font color="green">'.&mt('Completed.').'</font>');
+ 	if ($env{'form.displayedcrit'}) {
+ 	    &discrit($r);
+ 	} else {
+ 	    &Apache::loncommunicate::menu($r);
+ 	}
+     } else {
+ 	$r->print(
+ 		  '<h2><font color="red">'.&mt('Could not deliver message').'</font></h2>'.
+ 		  &mt('Please use the browser "Back" button and correct the recipient addresses')
+ 		  );
+     }
+ }
  # ===================================================================== Handler
  sub handler {
      my $r=shift;
  # ----------------------------------------------------------- Set document type
-   $r->content_type('text/html');
+     &Apache::loncommon::content_type($r,'text/html');
-   $r->send_http_header;
+     $r->send_http_header;
-   return OK if $r->header_only;
+     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']);
+          'sendreply','compose','sendmail','critical','recname','recdom',
+          'recordftf','sortedby','block','folder','startdis','interdis',
+ 	 'showcommentbaseurl','dismode']);
+     $sqs='&sortedby='.$env{'form.sortedby'};
+ # ------------------------------------------------------ They checked for email
+     unless ($env{'form.block'}) {
+         &Apache::lonnet::put('email_status',{'recnewemail'=>0});
+     }
+ # ----------------------------------------------------------------- Breadcrumbs
+     &Apache::lonhtmlcommon::clear_breadcrumbs();
+     &Apache::lonhtmlcommon::add_breadcrumb
+         ({href=>"/adm/communicate",
+           text=>"Communication/Messages",
+           faq=>12,bug=>'Communication Tools',});
+ # ------------------------------------------------------------------ Get Folder
+     my $folder=$env{'form.folder'};
+     unless ($folder) {
+ 	$folder='';
+     } else {
+ 	$sqs.='&folder='.&Apache::lonnet::escape($folder);
+     }
+ # ------------------------------------------------------------ Get Display Mode
+     my $dismode=$env{'form.dismode'};
+     unless ($dismode) {
+ 	$dismode='';
+     } else {
+ 	$sqs.='&dismode='.&Apache::lonnet::escape($dismode);
+     }
+ # --------------------------------------------------------------------- Display
+     $startdis=$env{'form.startdis'};
+     $startdis--;
+     unless ($startdis) { $startdis=0; }
+     $interdis=$env{'form.interdis'};
+     unless ($interdis) { $interdis=20; }
+     $sqs.='&interdis='.$interdis;
+     if ($env{'form.firstview'}) {
+ 	$startdis=0;
+     }
+     if ($env{'form.lastview'}) {
+ 	$startdis=-1;
+     }
+     if ($env{'form.prevview'}) {
+ 	$startdis--;
+     }
+     if ($env{'form.nextview'}) {
+ 	$startdis++;
+     }
+     my $postedstartdis=$startdis+1;
+     $sqs.='&startdis='.$postedstartdis;
  # --------------------------------------------------------------- Render Output
-   $r->print('<html><head><title>EMail and Messaging</title></head>'.
-             &Apache::loncommon::bodytag('EMail and Messages'));
-   if ($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> '.
- &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($msgid).
-              '"><b>Reply</b></a></td>'.
-            '<td><a href="/adm/email?forward='.&Apache::lonnet::escape($msgid).
-              '"><b>Forward</b></a></td>'.
-         '<td><a href="/adm/email?markunread='.&Apache::lonnet::escape($msgid).
-              '"><b>Mark Unread</b></a></td>'.
-         '<td><a href="/adm/email"><b>Display all Messages</b></a></td>'.
-              '</tr></table><p><pre>'.
-              &Apache::lontexconvert::msgtexconverted($content{'message'}).
-              '</pre><hr>'.$content{'citation'});
-   } elsif ($ENV{'form.replyto'}) {
-       &comprep($r,$ENV{'form.replyto'});
-   } elsif ($ENV{'form.sendreply'}) {
-       my $msgid=$ENV{'form.sendreply'};
-       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
-       my %content=&unpackagemsg($message{$msgid});
-       &statuschange($msgid,'replied');
-       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.sendbck'}));
-       } else {
-          $r->print('Sending: '.&user_normal_msg($content{'sendername'},
-                                  $content{'senderdomain'},
-                                  $ENV{'form.subject'},
-                                  $ENV{'form.message'}));
-       }
-       if ($ENV{'form.displayedcrit'}) {
-           &discrit($r);
-       } else {
- 	  &disall($r);
-       }
-   } elsif ($ENV{'form.confirm'}) {
-       foreach (keys %ENV) {
-           if ($_=~/^form\.rec\_(.*)$/) {
- 	      $r->print('<b>Confirming Receipt:</b> '.
-                         &user_crit_received($1).'<br>');
-           }
-           if ($_=~/^form\.reprec\_(.*)$/) {
-               my $msgid=$1;
- 	      $r->print('<b>Confirming Receipt:</b> '.
-                         &user_crit_received($msgid).'<br>');
-               &comprep($r,$msgid);
-           }
-       }
-       &discrit($r);
-   } elsif ($ENV{'form.critical'}) {
-       &discrit($r);
-   } elsif ($ENV{'form.forward'}) {
-       &compout($r,$ENV{'form.forward'});
-   } elsif ($ENV{'form.markread'}) {
-   } elsif ($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);
-   } elsif ($ENV{'form.compose'}) {
-       &compout($r,'',$ENV{'form.compose'});
-   } elsif ($ENV{'form.sendmail'}) {
-       my %content=();
-       undef %content;
-       if ($ENV{'form.forwid'}) {
-         my $msgid=$ENV{'form.forwid'};
-         my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
-         %content=&unpackagemsg($message{$msgid});
-         &statuschange($msgid,'forwarded');
-         $ENV{'form.message'}.="\n\n-- Forwarded message --\n\n".
- 	                       $content{'message'};
-       }
-       my %toaddr=();
-       undef %toaddr;
-       if ($ENV{'form.sendmode'} eq 'group') {
-           foreach (keys %ENV) {
- 	      if ($_=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
- 		  $toaddr{$1}='';
-               }
-           }
-       } elsif ($ENV{'form.sendmode'} eq 'upload') {
-           foreach (split(/[\n\r\f]+/,$ENV{'form.upfile'})) {
-               my ($rec,$txt)=split(/\s*\:\s*/,$_);
-               if ($txt) {
- 		  $rec=~s/\@/\:/;
-                   $toaddr{$rec}.=$txt."\n";
-               }
-           }
-       } else {
- 	  $toaddr{$ENV{'form.recuname'}.':'.$ENV{'form.recdomain'}}='';
-       }
-       if ($ENV{'form.additionalrec'}) {
- 	  foreach (split(/\,/,$ENV{'form.additionalrec'})) {
-               my ($auname,$audom)=split(/\@/,$_);
-               $toaddr{$auname.':'.$audom}='';
-           }
-       }
-     foreach (keys %toaddr) {
-       my ($recuname,$recdomain)=split(/\:/,$_);
-       my $msgtxt=$ENV{'form.message'};
-       if ($toaddr{$_}) { $msgtxt.='<hr>'.$toaddr{$_}; }
-       if ((($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,
-                                  $ENV{'form.sendbck'}));
-       } else {
-          $r->print('Sending: '.&user_normal_msg($recuname,$recdomain,
-                                  $ENV{'form.subject'},
-                                  $msgtxt,
-                                  $content{'citation'}));
-       }
-       $r->print('<br>');
-     }
-       if ($ENV{'form.displayedcrit'}) {
-           &discrit($r);
-       } else {
- 	  &disall($r);
-       }
-   } else {
-       &disall($r);
-   }
-   $r->print('</body></html>');
-   return OK;
+     if ($env{'form.display'}) {
+ 	&displaymessage($r,$env{'form.display'},$folder);
+     } elsif ($env{'form.replyto'}) {
+ 	&compout($r,'',$env{'form.replyto'},undef,undef,$folder,$dismode);
+     } elsif ($env{'form.confirm'}) {
+ 	&printheader($r,'','Confirmed Receipt');
+ 	foreach (keys %env) {
+ 	    if ($_=~/^form\.rec\_(.*)$/) {
+ 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
+ 			  &user_crit_received($1).'<br>');
+ 	    }
+ 	    if ($_=~/^form\.reprec\_(.*)$/) {
+ 		my $msgid=$1;
+ 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
+ 			  &user_crit_received($msgid).'<br>');
+ 		&compout($r,'','','',$msgid);
+ 	    }
+ 	}
+ 	&discrit($r);
+     } elsif ($env{'form.critical'}) {
+ 	&printheader($r,'','Displaying Critical Messages');
+ 	&discrit($r);
+     } elsif ($env{'form.forward'}) {
+ 	&compout($r,$env{'form.forward'},undef,undef,undef,$folder);
+     } elsif ($env{'form.markdel'}) {
+ 	&printheader($r,'','Deleted Message');
+ 	&statuschange($env{'form.markdel'},'deleted',$folder);
+ 	&Apache::loncommunicate::menu($r);
+ 	&disall($r,($folder?$folder:$dismode));
+     } elsif ($env{'form.markedmove'}) {
+ 	my $total=0;
+ 	foreach (keys %env) {
+ 	    if ($_=~/^form\.delmark_(.*)$/) {
+ 		&movemsg(&Apache::lonnet::unescape($1),$folder,
+ 			 $env{'form.movetofolder'});
+ 		$total++;
+ 	    }
+ 	}
+ 	&printheader($r,'','Moved Messages');
+ 	$r->print('Moved '.$total.' message(s)<p>');
+ 	&Apache::loncommunicate::menu($r);
+ 	&disall($r,($folder?$folder:$dismode));
+     } elsif ($env{'form.markeddel'}) {
+ 	my $total=0;
+ 	foreach (keys %env) {
+ 	    if ($_=~/^form\.delmark_(.*)$/) {
+ 		&statuschange(&Apache::lonnet::unescape($1),'deleted',$folder);
+ 		$total++;
+ 	    }
+ 	}
+ 	&printheader($r,'','Deleted Messages');
+ 	$r->print('Deleted '.$total.' message(s)<p>');
+ 	&Apache::loncommunicate::menu($r);
+ 	&disall($r,($folder?$folder:$dismode));
+     } elsif ($env{'form.markunread'}) {
+ 	&printheader($r,'','Marked Message as Unread');
+ 	&statuschange($env{'form.markunread'},'new');
+ 	&Apache::loncommunicate::menu($r);
+ 	&disall($r,($folder?$folder:$dismode));
+     } elsif ($env{'form.compose'}) {
+ 	&compout($r,'','',$env{'form.compose'});
+     } elsif ($env{'form.recordftf'}) {
+ 	&facetoface($r,$env{'form.recordftf'});
+     } elsif ($env{'form.block'}) {
+         &examblock($r,$env{'form.block'});
+     } elsif ($env{'form.sendmail'}) {
+ 	&sendoffmail($r,$folder);
+ 	if ($env{'form.storebasecomment'}) {
+ 	    &storecomment($r);
+ 	}
+ 	&disall($r,($folder?$folder:$dismode));
+     } elsif ($env{'form.newfolder'}) {
+ 	&printheader($r,'','New Folder');
+ 	&makefolder($env{'form.newfolder'});
+ 	&Apache::loncommunicate::menu($r);
+ 	&disall($r,$env{'form.newfolder'});
+     } elsif ($env{'form.showcommentbaseurl'}) {
+ 	&storedcommentlisting($r);
+     } else {
+ 	&printheader($r,'','Display All Messages');
+ 	&Apache::loncommunicate::menu($r);
+ 	&disall($r,($folder?$folder:$dismode));
+     }
+     $r->print(&Apache::loncommon::endbodytag().'</html>');
+     return OK;
  }
  # ================================================= Main program, reset counter
- Line 746  BEGIN {
+ Line 2179  BEGIN {
      $msgcount=0;
  }
-;
+ =pod
+ =back
+ =cut
+;
  __END__

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.39
changed lines
	Added in v.1.142