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Diff for /loncom/interface/lonmsg.pm between versions 1.72 and 1.173.2.1

version 1.72, 2003/12/29 21:21:39 version 1.173.2.1, 2006/04/23 05:47:33
Line 25 Line 25
 #  #
 # http://www.lon-capa.org/  # 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;  package Apache::lonmsg;
   
 =pod  =pod
Line 89  email program, so they have full access Line 74  email program, so they have full access
 interface, or other features they may wish to use in response to the  interface, or other features they may wish to use in response to the
 student's query.  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  =back
   
 Users can ask LON-CAPA to forward messages to conventional e-mail  Users can ask LON-CAPA to forward messages to conventional e-mail
 addresses on their B<PREF> screen, but generally, LON-CAPA messages  addresses on their B<PREF> screen, but generally, LON-CAPA messages
 are much more useful then traditional email can be made to be, even  are much more useful than traditional email can be made to be, even
 with HTML support.  with HTML support.
   
 Right now, this document will cover just how to send a message, since  Right now, this document will cover just how to send a message, since
 it is likely you will not need to programmatically read messages,  it is likely you will not need to programmatically read messages,
 since lonmsg already implements that functionality.  since lonmsg already implements that functionality.
   
   The routines used to package messages and unpackage messages are not
   only used by lonmsg when creating/extracting messages for LON-CAPA's
   internal messaging system, but also by lonnotify.pm which is available
   for use by Domain Coordinators to broadcast standard e-mail to specified
   users in their domain.  The XML packaging used in the two cases is very
   similar.  The differences are the use of <recuser>$uname</recuser> and 
   <recdomain>$udom</recdomain> in stored internal messages, compared 
   with <recipient username="$uname:$udom">$email</recipient> in stored
   Domain Coordinator e-mail for the storage of information about 
   recipients of the message/e-mail.
   
 =head1 FUNCTIONS  =head1 FUNCTIONS
   
 =over 4  =over 4
Line 107  since lonmsg already implements that fun Line 115  since lonmsg already implements that fun
 =cut  =cut
   
 use strict;  use strict;
 use Apache::lonnet();  use Apache::lonnet;
 use vars qw($msgcount);  use vars qw($msgcount);
 use HTML::TokeParser();  use HTML::TokeParser();
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
Line 116  use Apache::lontexconvert(); Line 124  use Apache::lontexconvert();
 use HTML::Entities();  use HTML::Entities();
 use Mail::Send;  use Mail::Send;
 use Apache::lonlocal;  use Apache::lonlocal;
   use Apache::loncommunicate;
   use Apache::lonfeedback;
   use Apache::lonrss();
   
 # Querystring component with sorting type  # Querystring component with sorting type
 my $sqs;  my $sqs;
   my $startdis;
   my $interdis;
   
 # ===================================================================== Package  # ===================================================================== Package
   
 sub packagemsg {  sub packagemsg {
     my ($subject,$message,$citation,$baseurl,$attachmenturl)=@_;      my ($subject,$message,$citation,$baseurl,$attachmenturl,
     $message =&HTML::Entities::encode($message);   $recuser,$recdomain,$msgid,$type)=@_;
     $citation=&HTML::Entities::encode($citation);      $message =&HTML::Entities::encode($message,'<>&"');
     $subject =&HTML::Entities::encode($subject);      $citation=&HTML::Entities::encode($citation,'<>&"');
       $subject =&HTML::Entities::encode($subject,'<>&"');
     #remove machine specification      #remove machine specification
     $baseurl =~ s|^http://[^/]+/|/|;      $baseurl =~ s|^http://[^/]+/|/|;
     $baseurl =&HTML::Entities::encode($baseurl);      $baseurl =&HTML::Entities::encode($baseurl,'<>&"');
     #remove machine specification      #remove machine specification
     $attachmenturl =~ s|^http://[^/]+/|/|;      $attachmenturl =~ s|^http://[^/]+/|/|;
     $attachmenturl =&HTML::Entities::encode($attachmenturl);      $attachmenturl =&HTML::Entities::encode($attachmenturl,'<>&"');
       my $course_context;
       if (defined($env{'form.replyid'})) {
           my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid)=
                      split(/\:/,&Apache::lonnet::unescape($env{'form.replyid'}));
           $course_context = $origcid;
       }
       foreach my $key (keys(%env)) {
           if ($key=~/^form\.(rep)?rec\_(.*)$/) {
               my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid) =
                                       split(/\:/,&Apache::lonnet::unescape($2));
               $course_context = $origcid;
               last;
           }
       }
       unless(defined($course_context)) {
           $course_context = $env{'request.course.id'};
       }
     my $now=time;      my $now=time;
     $msgcount++;      $msgcount++;
     my $partsubj=$subject;      unless(defined($msgid)) {
     $partsubj=&Apache::lonnet::escape($partsubj);          $msgid = &buildmsgid($now,$subject,$env{'user.name'},$env{'user.domain'},
     my $msgid=&Apache::lonnet::escape(                              $msgcount,$course_context,$$);
            $now.':'.$partsubj.':'.$ENV{'user.name'}.':'.      }
            $ENV{'user.domain'}.':'.$msgcount.':'.$$);      my $result='<sendername>'.$env{'user.name'}.'</sendername>'.
     my $result='<sendername>'.$ENV{'user.name'}.'</sendername>'.             '<senderdomain>'.$env{'user.domain'}.'</senderdomain>'.
            '<senderdomain>'.$ENV{'user.domain'}.'</senderdomain>'.  
            '<subject>'.$subject.'</subject>'.             '<subject>'.$subject.'</subject>'.
    '<time>'.&Apache::lonlocal::locallocaltime($now).'</time>'.     '<time>'.&Apache::lonlocal::locallocaltime($now).'</time>'.
    '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.     '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
            '<host>'.$ENV{'HTTP_HOST'}.'</host>'.             '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
    '<client>'.$ENV{'REMOTE_ADDR'}.'</client>'.     '<client>'.$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>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.     '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
    '<courseid>'.$ENV{'request.course.id'}.'</courseid>'.     '<courseid>'.$course_context.'</courseid>'.
    '<role>'.$ENV{'request.role'}.'</role>'.     '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
    '<resource>'.$ENV{'request.filename'}.'</resource>'.     '<role>'.$env{'request.role'}.'</role>'.
            '<msgid>'.$msgid.'</msgid>'.     '<resource>'.$env{'request.filename'}.'</resource>'.
    '<message>'.$message.'</message>';             '<msgid>'.$msgid.'</msgid>';
       if (ref($recuser) eq 'ARRAY') {
           for (my $i=0; $i<@{$recuser}; $i++) {
               if ($type eq 'dcmail') {
                   my ($username,$email) = split(/:/,$$recuser[$i]);
                   $username = &Apache::lonnet::unescape($username);
                   $email = &Apache::lonnet::unescape($email);
                   $username = &HTML::Entities::encode($username,'<>&"');
                   $email = &HTML::Entities::encode($email,'<>&"');
                   $result .= '<recipient username="'.$username.'">'.
                                               $email.'</recipient>';
               } else {
                   $result .= '<recuser>'.$$recuser[$i].'</recuser>'.
                              '<recdomain>'.$$recdomain[$i].'</recdomain>';
               }
           }
       } else {
           $result .= '<recuser>'.$recuser.'</recuser>'.
                      '<recdomain>'.$recdomain.'</recdomain>';
       }
       $result .= '<message>'.$message.'</message>';
     if (defined($citation)) {      if (defined($citation)) {
  $result.='<citation>'.$citation.'</citation>';   $result.='<citation>'.$citation.'</citation>';
     }      }
Line 181  sub unpackagemsg { Line 230  sub unpackagemsg {
        if ($token->[0] eq 'S') {         if ($token->[0] eq 'S') {
    my $entry=$token->[1];     my $entry=$token->[1];
            my $value=$parser->get_text('/'.$entry);             my $value=$parser->get_text('/'.$entry);
            $content{$entry}=$value;             if (($entry eq 'recuser') || ($entry eq 'recdomain')) {
                  push(@{$content{$entry}},$value);
              } elsif ($entry eq 'recipient') {
                  my $username = $token->[2]{'username'};
                  $username = &HTML::Entities::decode($username,'<>&"');
                  $content{$entry}{$username} = $value;
              } else {
                  $content{$entry}=$value;
              }
        }         }
     }      }
       if (!exists($content{'recuser'})) { $content{'recuser'} = []; }
     if ($content{'attachmenturl'}) {      if ($content{'attachmenturl'}) {
        my ($fname,$ft)=($content{'attachmenturl'}=~/\/(\w+)\.(\w+)$/);         my ($fname)=($content{'attachmenturl'}=~m|/([^/]+)$|);
        if ($notoken) {         if ($notoken) {
    $content{'message'}.='<p>'.&mt('Attachment').': <tt>'.$fname.'.'.$ft.'</tt>';     $content{'message'}.='<p>'.&mt('Attachment').': <tt>'.$fname.'</tt>';
        } else {         } else {
    $content{'message'}.='<p>'.&mt('Attachment').': <a href="'.     &Apache::lonnet::allowuploaded('/adm/msg',
        &Apache::lonnet::tokenwrapper($content{'attachmenturl'}).    $content{'attachmenturl'});
        '"><tt>'.$fname.'.'.$ft.'</tt></a>';     $content{'message'}.='<p>'.&mt('Attachment').
          ': <a href="'.$content{'attachmenturl'}.'"><tt>'.
          $fname.'</tt></a>';
        }         }
     }      }
     return %content;      return %content;
Line 199  sub unpackagemsg { Line 259  sub unpackagemsg {
   
 # ======================================================= Get info out of msgid  # ======================================================= Get info out of msgid
   
   sub buildmsgid {
       my ($now,$subject,$uname,$udom,$msgcount,$course_context,$pid) = @_;
       $subject=&Apache::lonnet::escape($subject);
       return(&Apache::lonnet::escape($now.':'.$subject.':'.$uname.':'.
              $udom.':'.$msgcount.':'.$course_context.':'.$pid));
   }
   
 sub unpackmsgid {  sub unpackmsgid {
     my $msgid=&Apache::lonnet::unescape(shift);      my ($msgid,$folder,$skipstatus,$status_cache)=@_;
     my ($sendtime,$shortsubj,$fromname,$fromdomain)=split(/\:/,      $msgid=&Apache::lonnet::unescape($msgid);
                           &Apache::lonnet::unescape($msgid));      my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$fromcid,
     my %status=&Apache::lonnet::get('email_status',[$msgid]);                       $processid)=split(/\:/,&Apache::lonnet::unescape($msgid));
     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }      if (!defined($processid)) { $fromcid = ''; }
     unless ($status{$msgid}) { $status{$msgid}='new'; }      my %status=();
     return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid});      unless ($skipstatus) {
 }    if (ref($status_cache)) {
       $status{$msgid} = $status_cache->{$msgid};
    } else {
       my $suffix=&foldersuffix($folder);
       %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},$fromcid);
   }
   
   
 sub sendemail {  sub sendemail {
Line 218  sub sendemail { Line 295  sub sendemail {
     my $msg = new Mail::Send;      my $msg = new Mail::Send;
     $msg->to($to);      $msg->to($to);
     $msg->subject('[LON-CAPA] '.$subject);      $msg->subject('[LON-CAPA] '.$subject);
     if (my $fh = $msg->open('smtp',Server => 'localhost')) {      if (my $fh = $msg->open()) {
  print $fh $body;   print $fh $body;
  $fh->close;   $fh->close;
     }      }
Line 227  sub sendemail { Line 304  sub sendemail {
 # ==================================================== Send notification emails  # ==================================================== Send notification emails
   
 sub sendnotification {  sub sendnotification {
     my ($to,$touname,$toudom,$subj,$crit)=@_;      my ($to,$touname,$toudom,$subj,$crit,$text)=@_;
     my $sender=$ENV{'environment.firstname'}.' '.$ENV{'environment.lastname'};      my $sender=$env{'environment.firstname'}.' '.$env{'environment.lastname'};
       unless ($sender=~/\w/) { 
    $sender=$env{'user.name'}.'@'.$env{'user.domain'};
       }
     my $critical=($crit?' critical':'');      my $critical=($crit?' critical':'');
       $text=~s/\&lt\;/\</gs;
       $text=~s/\&gt\;/\>/gs;
       $text=~s/\<\/*[^\>]+\>//gs;
     my $url='http://'.      my $url='http://'.
       $Apache::lonnet::hostname{&Apache::lonnet::homeserver($touname,$toudom)}.        $Apache::lonnet::hostname{&Apache::lonnet::homeserver($touname,$toudom)}.
       '/adm/email?username='.$touname.'&domain='.$toudom;        '/adm/email?username='.$touname.'&domain='.$toudom;
Line 238  You received a$critical message from $se Line 321  You received a$critical message from $se
   
  $subj   $subj
   
   === Excerpt ============================================================
   $text
   ========================================================================
   
 Use  Use
   
  $url   $url
   
 to access this message.  to access the full message.
 ENDMSG  ENDMSG
     &sendemail($to,'New'.$critical.' message from '.$sender,$body);      &sendemail($to,'New'.$critical.' message from '.$sender,$body);
 }  }
 # ============================================================= Check for email  # ============================================================= Check for email
   
 sub newmail {  sub newmail {
     if ((time-$ENV{'user.mailcheck.time'})>300) {      if ((time-$env{'user.mailcheck.time'})>300) {
         my %what=&Apache::lonnet::get('email_status',['recnewemail']);          my %what=&Apache::lonnet::get('email_status',['recnewemail']);
         &Apache::lonnet::appenv('user.mailcheck.time'=>time);          &Apache::lonnet::appenv('user.mailcheck.time'=>time);
         if ($what{'recnewemail'}>0) { return 1; }          if ($what{'recnewemail'}>0) { return 1; }
Line 284  sub author_res_msg { Line 371  sub author_res_msg {
     return 'no_host';      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);
   }
   # =================================== Clear out all author messages in URL path
   
   sub clear_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$url\E/) {
       push (@delmsgs,$_);
    }
       }
       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  # ================================================== Critical message to a user
   
 sub user_crit_msg_raw {  sub user_crit_msg_raw {
     my ($user,$domain,$subject,$message,$sendback)=@_;      my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage)=@_;
 # Check if allowed missing  # Check if allowed missing
     my $status='';      my $status='';
     my $msgid='undefined';      my $msgid='undefined';
     unless (($message)&&($user)&&($domain)) { $status='empty'; };      unless (($message)&&($user)&&($domain)) { $status='empty'; };
       my $text=$message;
     my $homeserver=&Apache::lonnet::homeserver($user,$domain);      my $homeserver=&Apache::lonnet::homeserver($user,$domain);
     if ($homeserver ne 'no_host') {      if ($homeserver ne 'no_host') {
        ($msgid,$message)=&packagemsg($subject,$message);         ($msgid,$message)=&packagemsg($subject,$message);
Line 300  sub user_crit_msg_raw { Line 448  sub user_crit_msg_raw {
            'put:'.$domain.':'.$user.':critical:'.             'put:'.$domain.':'.$user.':critical:'.
            &Apache::lonnet::escape($msgid).'='.             &Apache::lonnet::escape($msgid).'='.
            &Apache::lonnet::escape($message),$homeserver);             &Apache::lonnet::escape($message),$homeserver);
        if ($ENV{'request.course.id'}) {          if (defined($sentmessage)) {
           &user_normal_msg_raw(              $$sentmessage = $message;
             $ENV{'course.'.$ENV{'request.course.id'}.'.num'},          }
             $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},  
             'Critical ['.$user.':'.$domain.']',  
     $message);  
        }  
     } else {      } else {
        $status='no_host';         $status='no_host';
     }      }
 # Notifications  # Notifications
     my %userenv = &Apache::lonnet::get('environment',['critnotification'],      my %userenv = &Apache::lonnet::get('environment',['critnotification',
                                                         'permanentemail'],
                                        $domain,$user);                                         $domain,$user);
     if ($userenv{'critnotification'}) {      if ($userenv{'critnotification'}) {
       &sendnotification($userenv{'critnotification'},$user,$domain,$subject,1);        &sendnotification($userenv{'critnotification'},$user,$domain,$subject,1,
    $text);
       }
       if ($toperm && $userenv{'permanentemail'}) {
         &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,1,
    $text);
     }      }
 # Log this  # Log this
     &Apache::lonnet::logthis(      &Apache::lonnet::logthis(
       'Sending critical email '.$msgid.        'Sending critical email '.$msgid.
       ', log status: '.        ', log status: '.
       &Apache::lonnet::log($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: '        'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status: '
       .$status));        .$status));
     return $status;      return $status;
Line 338  sub user_crit_msg_raw { Line 488  sub user_crit_msg_raw {
 =cut  =cut
   
 sub user_crit_msg {  sub user_crit_msg {
     my ($user,$domain,$subject,$message,$sendback)=@_;      my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage)=@_;
     my $status='';      my $status='';
     my %userenv = &Apache::lonnet::get('environment',['msgforward'],      my %userenv = &Apache::lonnet::get('environment',['msgforward'],
                                        $domain,$user);                                         $domain,$user);
Line 348  sub user_crit_msg { Line 498  sub user_crit_msg {
  my ($forwuser,$forwdomain)=split(/\:/,$_);   my ($forwuser,$forwdomain)=split(/\:/,$_);
          $status.=           $status.=
    &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,     &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,
                 $sendback).' ';                  $sendback,$toperm,$sentmessage).' ';
        }         }
     } else {       } else { 
  $status=&user_crit_msg_raw($user,$domain,$subject,$message,$sendback);   $status=&user_crit_msg_raw($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage);
     }      }
     return $status;      return $status;
 }  }
Line 364  sub user_crit_received { Line 514  sub user_crit_received {
     my %contents=&unpackagemsg($message{$msgid},1);      my %contents=&unpackagemsg($message{$msgid},1);
     my $status='rec: '.($contents{'sendback'}?      my $status='rec: '.($contents{'sendback'}?
      &user_normal_msg($contents{'sendername'},$contents{'senderdomain'},       &user_normal_msg($contents{'sendername'},$contents{'senderdomain'},
                      &mt('Receipt').': '.$ENV{'user.name'}.' at '.$ENV{'user.domain'},                       &mt('Receipt').': '.$env{'user.name'}.' '.&mt('at').' '.$env{'user.domain'}.', '.$contents{'subject'},
                      &mt('User').' '.$ENV{'user.name'}.' '.&mt('at').' '.$ENV{'user.domain'}.                       &mt('User').' '.$env{'user.name'}.' '.&mt('at').' '.$env{'user.domain'}.
                      ' acknowledged receipt of message'."\n".'   "'.                       ' acknowledged receipt of message'."\n".'   "'.
                      $contents{'subject'}.'"'."\n".&mt('dated').' '.                       $contents{'subject'}.'"'."\n".&mt('dated').' '.
                      $contents{'time'}.".\n"                       $contents{'time'}.".\n"
Line 375  sub user_crit_received { Line 525  sub user_crit_received {
      'nohist_email',{$contents{'msgid'} => $message{$msgid}});       'nohist_email',{$contents{'msgid'} => $message{$msgid}});
     $status.=' del: '.      $status.=' del: '.
      &Apache::lonnet::del('critical',[$contents{'msgid'}]);       &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'}.                           $contents{'msgid'}.
                          ', '.$status);                           ', '.$status);
     return $status;      return $status;
Line 385  sub user_crit_received { Line 535  sub user_crit_received {
 # ======================================================== Normal communication  # ======================================================== Normal communication
   
 sub user_normal_msg_raw {  sub user_normal_msg_raw {
     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl)=@_;      my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
    $toperm,$currid,$newid,$sentmessage)=@_;
 # Check if allowed missing  # Check if allowed missing
     my $status='';      my ($status,$packed_message);
     my $msgid='undefined';      my $msgid='undefined';
       my $text=$message;
     unless (($message)&&($user)&&($domain)) { $status='empty'; };      unless (($message)&&($user)&&($domain)) { $status='empty'; };
     my $homeserver=&Apache::lonnet::homeserver($user,$domain);      my $homeserver=&Apache::lonnet::homeserver($user,$domain);
     if ($homeserver ne 'no_host') {      if ($homeserver ne 'no_host') {
        ($msgid,$message)=&packagemsg($subject,$message,$citation,$baseurl,         ($msgid,$packed_message)=
                                      $attachmenturl);                   &packagemsg($subject,$message,$citation,$baseurl,
                                        $attachmenturl,$user,$domain,$currid);
          (undef, my $packed_message_no_citation)=
                            &packagemsg($subject,$message,undef     ,$baseurl,
                                        $attachmenturl,$user,$domain,$currid);
   # Store in user folder
        $status=&Apache::lonnet::critical(         $status=&Apache::lonnet::critical(
            'put:'.$domain.':'.$user.':nohist_email:'.             'put:'.$domain.':'.$user.':nohist_email:'.
            &Apache::lonnet::escape($msgid).'='.             &Apache::lonnet::escape($msgid).'='.
            &Apache::lonnet::escape($message),$homeserver);             &Apache::lonnet::escape($packed_message),$homeserver);
   # Save new message received time
        &Apache::lonnet::put         &Apache::lonnet::put
                          ('email_status',{'recnewemail'=>time},$domain,$user);                           ('email_status',{'recnewemail'=>time},$domain,$user);
   # Into sent-mail folder unless a broadcast message or critical message
          unless (($env{'request.course.id'}) && 
                  (($env{'form.sendmode'} eq 'group')  || 
                  (($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
                  (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
    || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
       '/'.$env{'request.course.sec'})))) {
              $status .= &store_sent_mail($msgid,$packed_message_no_citation);
          }
     } else {      } else {
        $status='no_host';         $status='no_host';
     }      }
       if (defined($newid)) {
           $$newid = $msgid;
       }
       if (defined($sentmessage)) {
           $$sentmessage = $packed_message;
       }
   
 # Notifications  # Notifications
     my %userenv = &Apache::lonnet::get('environment',['notification'],      my %userenv = &Apache::lonnet::get('environment',['notification',
                                                         'permanentemail'],
                                        $domain,$user);                                         $domain,$user);
     if ($userenv{'notification'}) {      if ($userenv{'notification'}) {
  &sendnotification($userenv{'notification'},$user,$domain,$subject,0);   &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'},$ENV{'user.name'},      &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
                          $ENV{'user.home'},                           $env{'user.home'},
       'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);        'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
     return $status;      return $status;
 }  }
Line 426  sub user_normal_msg_raw { Line 606  sub user_normal_msg_raw {
 =cut  =cut
   
 sub user_normal_msg {  sub user_normal_msg {
     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl)=@_;      my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
    $toperm,$sentmessage)=@_;
     my $status='';      my $status='';
     my %userenv = &Apache::lonnet::get('environment',['msgforward'],      my %userenv = &Apache::lonnet::get('environment',['msgforward'],
                                        $domain,$user);                                         $domain,$user);
     my $msgforward=$userenv{'msgforward'};      my $msgforward=$userenv{'msgforward'};
     if ($msgforward) {      if ($msgforward) {
        foreach (split(/\,/,$msgforward)) {          foreach (split(/\,/,$msgforward)) {
  my ($forwuser,$forwdomain)=split(/\:/,$_);      my ($forwuser,$forwdomain)=split(/\:/,$_);
          $status.=      $status.=
   &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,          &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
        $citation,$baseurl,$attachmenturl).' ';       $citation,$baseurl,$attachmenturl,$toperm,
        }       undef,undef,$sentmessage).' ';
           }
     } else {       } else { 
  $status=&user_normal_msg_raw($user,$domain,$subject,$message,   $status=&user_normal_msg_raw($user,$domain,$subject,$message,
      $citation,$baseurl,$attachmenturl);       $citation,$baseurl,$attachmenturl,$toperm,
        undef,undef,$sentmessage);
     }      }
     return $status;      return $status;
 }  }
   
   sub store_sent_mail {
       my ($msgid,$message) = @_;
       my $status =' '.&Apache::lonnet::critical(
                  'put:'.$env{'user.domain'}.':'.$env{'user.name'}.
                                             ':nohist_email_sent:'.
                  &Apache::lonnet::escape($msgid).'='.
                  &Apache::lonnet::escape($message),$env{'user.home'});
       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++;$finish++;
       return
      &mt('Page').': '. 
      '<input type="submit" name="firstview" value="'.&mt('First').'" />'.
      '<input type="submit" name="prevview" value="'.&mt('Previous').'" />'.
      '<input type="text" size="5" name="startdis" value="'.$start.'" onChange="this.form.submit()" /> of '.$maxdis.
      '<input type="submit" name="nextview" value="'.&mt('Next').'" />'.
      '<input type="submit" name="lastview" value="'.&mt('Last').'" /><br />'.
      &mt('Showing messages [_1] through [_2] of [_3]',$first,$finish,$total).'</form>';
   }
   
   # =============================================================== Folder suffix
   
   sub foldersuffix {
       my $folder=shift;
       unless ($folder) { return ''; }
       return '_'.&Apache::lonnet::escape($folder);
   }
   
 # =============================================================== Status Change  # =============================================================== Status Change
   
 sub statuschange {  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}=''; }      if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
     unless ($status{$msgid}) { $status{$msgid}='new'; }      unless ($status{$msgid}) { $status{$msgid}='new'; }
     unless (($status{$msgid} eq 'replied') ||       unless (($status{$msgid} eq 'replied') || 
             ($status{$msgid} eq 'forwarded')) {              ($status{$msgid} eq 'forwarded')) {
  &Apache::lonnet::put('email_status',{$msgid => $newstatus});   &Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
     }      }
     if (($newstatus eq 'deleted') || ($newstatus eq 'new')) {      if (($newstatus eq 'deleted') || ($newstatus eq 'new')) {
  &Apache::lonnet::put('email_status',{$msgid => $newstatus});   &Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
     }      }
       if ($newstatus eq 'deleted') {
    return &movemsg($msgid,$folder,'trash');
       }
       return ;
   }
   
   # ============================================================= 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);
       if ($srcsuffix eq $trgsuffix) {
    return (0,&mt('Message not moved, Attempted to move message to the same folder as it already is in.'));
       }
   
   # Copy message
       my %message=&Apache::lonnet::get('nohist_email'.$srcsuffix,[$msgid]);
       if (!exists($message{$msgid}) || $message{$msgid} eq '') {
    if (&Apache::slotrequest::network_error(%message)) {
       return (0,&mt('Message not moved, A network error occurred.'));
    } else {
       return (0,&mt('Message not moved as the message is no longer in the source folder.'));
    }
       }
   
       my $result =&Apache::lonnet::put('nohist_email'.$trgsuffix,
        {$msgid => $message{$msgid}});
       if (&Apache::slotrequest::network_error($result)) {
    return (0,&mt('Message not moved, A network error occurred.'));
       }
   
   # Copy status
       unless ($trgfolder eq 'trash') {
           my %status=&Apache::lonnet::get('email_status'.$srcsuffix,[$msgid]);
    # a non-existant status is the mark of an unread msg
    if (&Apache::slotrequest::network_error(%status)) {
       return (0,&mt('Message copied to new folder but status was not, A network error occurred.'));
    }
    my $result=&Apache::lonnet::put('email_status'.$trgsuffix,
    {$msgid => $status{$msgid}});
    if (&Apache::slotrequest::network_error($result)) {
       return (0,&mt('Message copied to new folder but status was not, A network error occurred.'));
    }
       }
   
   # Delete orginals
       my $result_del_msg = 
    &Apache::lonnet::del('nohist_email'.$srcsuffix,[$msgid]);
       my $result_del_stat =
    &Apache::lonnet::del('email_status'.$srcsuffix,[$msgid]);
       if (&Apache::slotrequest::network_error($result_del_msg)) {
    return (0,&mt('Message copied, but unable to delete the original from the source folder.'));
       }
       if (&Apache::slotrequest::network_error($result_del_stat)) {
    return (0,&mt('Message copied, but unable to delete the original status from the source folder.'));
       }
   
       return (1);
 }  }
   
 # ======================================================= Display a course list  # ======================================================= Display a course list
   
 sub discourse {  sub discourse {
     my $r=shift;      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 $now=time;
     my %lt=&Apache::lonlocal::texthash('cfa' => 'Check for All',      my %lt=&Apache::lonlocal::texthash('cfa' => 'Check All',
             'cfs' => 'Check for Section/Group',              'cfs' => 'Check Section/Group',
             'cfn' => 'Check for None');              'cfn' => 'Uncheck All');
     $r->print(<<ENDDISHEADER);      $r->print(<<ENDDISHEADER);
 <input type=hidden name=sendmode value=group>  <input type="hidden" name="sendmode" value="group" />
 <script>  <script>
     function checkall() {      function checkall() {
  for (i=0; i<document.forms.compemail.elements.length; i++) {   for (i=0; i<document.forms.compemail.elements.length; i++) {
Line 505  sub discourse { Line 812  sub discourse {
         }          }
     }      }
 </script>  </script>
 <input type=button onClick="checkall()" value="$lt{'cfa'}">&nbsp;  <input type="button" onClick="checkall()" value="$lt{'cfa'}" />&nbsp;
 <input type=button onClick="checksec()" value="$lt{'cfs'}">  <input type="button" onClick="checksec()" value="$lt{'cfs'}" />
 <input type=text size=5 name=chksec>&nbsp;  <input type="text" size="5" name="chksec" />&nbsp;
 <input type=button onClick="uncheckall()" value="$lt{'cfn'}">  <input type="button" onClick="uncheckall()" value="$lt{'cfn'}" />
 <p>  <p>
 ENDDISHEADER  ENDDISHEADER
     my %coursepersonnel=      my %coursepersonnel=&Apache::lonnet::get_course_adv_roles();
        &Apache::lonnet::get_course_adv_roles();      $r->print('<table>');
     foreach my $role (sort keys %coursepersonnel) {      foreach my $role (sort keys %coursepersonnel) {
        foreach (split(/\,/,$coursepersonnel{$role})) {          foreach (split(/\,/,$coursepersonnel{$role})) {
    my ($puname,$pudom)=split(/\:/,$_);              my ($puname,$pudom)=split(/\:/,$_);
    $r->print(              $r->print('<tr><td><label>'.
              '<br /><input type="checkbox" name="send_to_&&&&&&_'.                        '<input type="checkbox" name="send_to_&&&&&&_'.
              $puname.':'.$pudom.'" /> '.                        $puname.':'.$pudom.'" /> '.
      &Apache::loncommon::plainname($puname,                        &Apache::loncommon::plainname($puname,$pudom).
                           $pudom).' ('.$_.'), <i>'.$role.'</i>');                        '</label></td>'.
  }                        '<td>('.$_.'),</td><td><i>'.$role.'</i></td></tr>');
           }
     }      }
       $r->print('</table><table>');
     foreach (sort keys %courselist) {      my $sort = sub {
         my ($end,$start)=split(/\:/,$courselist{$_});   my $aname=lc($classlist->{$a}[&Apache::loncoursedata::CL_FULLNAME()]);
         my $active=1;   if (!$aname) { $aname=$a; }
         if (($end) && ($now>$end)) { $active=0; }   my $bname=lc($classlist->{$b}[&Apache::loncoursedata::CL_FULLNAME()]);
         if ($active) {   if (!$bname) { $bname=$b; }
            my ($sname,$sdom)=split(/\:/,$_);   return $aname cmp $bname;
            my %reply=&Apache::lonnet::get('environment',      };
               ['firstname','middlename','lastname','generation'],      foreach my $student (sort $sort (keys(%{$classlist}))) {
               $sdom,$sname);   my $info=$classlist->{$student};
            my $section=&Apache::lonnet::usection          my ($sname,$sdom,$status,$fullname,$section) =
        ($sdom,$sname,$ENV{'request.course.id'});              (@{$info}[&Apache::loncoursedata::CL_SNAME(),
            $r->print(                        &Apache::loncoursedata::CL_SDOM(),
         '<br><input type=checkbox name="send_to_&&&'.$section.'&&&_'.$_.'"> '.                        &Apache::loncoursedata::CL_STATUS(),
       $reply{'firstname'}.' '.                         &Apache::loncoursedata::CL_FULLNAME(),
                       $reply{'middlename'}.' '.                        &Apache::loncoursedata::CL_SECTION()]);
                       $reply{'lastname'}.' '.          next if ($status ne 'Active');
                       $reply{'generation'}.   next if ($env{'request.course.sec'} &&
                       ' ('.$_.') '.$section);   $section ne $env{'request.course.sec'});
         }           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  # ==================================================== Display Critical Message
Line 551  ENDDISHEADER Line 865  ENDDISHEADER
 sub discrit {  sub discrit {
     my $r=shift;      my $r=shift;
     my $header = '<h1><font color=red>'.&mt('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 %what=&Apache::lonnet::dump('critical');
     my $result = '';      my $result = '';
     foreach (sort keys %what) {      foreach (sort keys %what) {
         my %content=&unpackagemsg($what{$_});          my %content=&unpackagemsg($what{$_});
         next if ($content{'senderdomain'} eq '');          next if ($content{'senderdomain'} eq '');
         $content{'message'}=~s/\n/\<br\>/g;          $result.='<hr />'.&mt('From').': <b>'.
         $result.='<hr>'.&mt('From').': <b>'.  
 &Apache::loncommon::aboutmewrapper(  &Apache::loncommon::aboutmewrapper(
  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.   &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
 $content{'sendername'}.'@'.  $content{'sendername'}.'@'.
             $content{'senderdomain'}.') '.$content{'time'}.              $content{'senderdomain'}.') '.$content{'time'}.
             '<br>'.&mt('Subject').': '.$content{'subject'}.              '<br />'.&mt('Subject').': '.$content{'subject'}.
             '<br><blockquote>'.              '<br /><pre>'.
               &Apache::lontexconvert::msgtexconverted($content{'message'}).                &Apache::lontexconvert::msgtexconverted($content{'message'}).
             '</blockquote>'.              '</pre><small>'.
             '<input type=submit name="rec_'.$_.'" value="'.&mt('Confirm Receipt').'">'.  &mt('You have to confirm that you received this message. After confirmation, this message will be moved to your regular inbox').
             '<input type=submit name="reprec_'.$_.'" '.              '</small><br />'.
                   'value="'.&mt('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.      # Check to see if there were any messages.
     if ($result eq '') {      if ($result eq '') {
         $result = "<h2>".&mt('You have no critical messages.')."</h2>".          $result = "<h2>".&mt('You have no critical messages.')."</h2>".
     '<a href="/adm/roles">'.&mt('Select a course').'</a>';      '<a href="/adm/roles">'.&mt('Select a course').'</a><br />'.
               '<a href="/adm/email">'.&mt('Communicate').'</a>';
     } else {      } else {
         $r->print($header);          $r->print($header);
     }      }
     $r->print($result);      $r->print($result);
     $r->print('<input type=hidden name="displayedcrit" value="true"></form>');      $r->print('<input type="hidden" name="displayedcrit" value="true" /></form>');
 }  
   
 # =============================================================== Compose reply  
   
 sub comprep {  
     my ($r,$msgid)=@_;  
       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);  
       my %content=&unpackagemsg($message{$msgid},1);  
       my $quotemsg='> '.$content{'message'};  
       $quotemsg=~s/\r/\n/g;  
       $quotemsg=~s/\f/\n/g;  
       $quotemsg=~s/\n+/\n\> /g;  
       my $torepl=&Apache::loncommon::aboutmewrapper(  
  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).' ('.  
 $content{'sendername'}.'@'.  
             $content{'senderdomain'}.')';  
       my $subject=&mt('Re').': '.$content{'subject'};  
       my $dispcrit='';  
       if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {  
  my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");  
          $dispcrit=  
  '<input type=checkbox name=critmsg> '.&mt('Send as critical message').' ' . $crithelp .   
  '<br>'.  
  '<input type=checkbox name=sendbck> '.&mt('Send as critical message').' ' .  
  &mt('and return receipt') . $crithelp . '<p>';  
       }  
     my %lt=&Apache::lonlocal::texthash(  
    'to' => 'To',  
    'sb' => 'Subject',  
    'sr' => 'Send Reply',  
    'ca' => 'Cancel'  
    );  
       $r->print(<<"ENDREPLY");  
 <form action="/adm/email" method="post">  
 <input type="hidden" name="sendreply" value="$msgid">  
 $lt{'to'}: $torepl<br />  
 $lt{'sb'}: <input type="text" size=50 name="subject" value="$subject"><p>  
 <textarea name="message" cols="84" rows="10" wrap="hard">  
 $quotemsg  
 </textarea></p><br />  
 $dispcrit  
 <input type="submit" name="send" value="$lt{'sr'}" />  
 <input type="submit" name="cancel" value="$lt{'ca'}"/ >  
 </form>  
 ENDREPLY  
 }  }
   
 sub sortedmessages {  sub sortedmessages {
     my @messages = &Apache::lonnet::getkeys('nohist_email');      my ($blocked,$startblock,$endblock,$numblocked,$folder) = @_;
       my $suffix=&foldersuffix($folder);
       my @messages = &Apache::lonnet::getkeys('nohist_email'.$suffix);
     #unpack the varibles and repack into temp for sorting      #unpack the varibles and repack into temp for sorting
     my @temp;      my @temp;
       my %descriptions;
       my %status_cache = 
    &Apache::lonnet::get('email_status'.&foldersuffix($folder),\@messages);
     foreach (@messages) {      foreach (@messages) {
  my $msgid=&Apache::lonnet::escape($_);   my $msgid=&Apache::lonnet::escape($_);
  my ($sendtime,$shortsubj,$fromname,$fromdomain,$status)=   my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid)=
     &Apache::lonmsg::unpackmsgid($msgid);      &Apache::lonmsg::unpackmsgid($msgid,$folder,undef,
    \%status_cache);
           my $description = &get_course_desc($fromcid,\%descriptions);
  my @temp1 = ($sendtime,$shortsubj,$fromname,$fromdomain,$status,   my @temp1 = ($sendtime,$shortsubj,$fromname,$fromdomain,$status,
      $msgid);       $msgid,$description);
  push @temp ,\@temp1;          # 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      #default sort
     @temp = sort  {$a->[0] <=> $b->[0]} @temp;          @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
     if ($ENV{'form.sortedby'} eq "date"){      if ($env{'form.sortedby'} eq "date"){
         @temp = sort  {$a->[0] <=> $b->[0]} @temp;              @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
     }      }
     if ($ENV{'form.sortedby'} eq "revdate"){      if ($env{'form.sortedby'} eq "revdate"){
     @temp = sort  {$b->[0] <=> $a->[0]} @temp;       @temp = sort  {$b->[0] <=> $a->[0]} @temp; 
     }      }
     if ($ENV{'form.sortedby'} eq "user"){      if ($env{'form.sortedby'} eq "user"){
  @temp = sort  {lc($a->[2]) cmp lc($b->[2])} @temp;   @temp = sort  {lc($a->[2]) cmp lc($b->[2])} @temp;
     }      }
     if ($ENV{'form.sortedby'} eq "revuser"){      if ($env{'form.sortedby'} eq "revuser"){
  @temp = sort  {lc($b->[2]) cmp lc($a->[2])} @temp;   @temp = sort  {lc($b->[2]) cmp lc($a->[2])} @temp;
     }      }
     if ($ENV{'form.sortedby'} eq "domain"){      if ($env{'form.sortedby'} eq "domain"){
         @temp = sort  {$a->[3] cmp $b->[3]} @temp;          @temp = sort  {$a->[3] cmp $b->[3]} @temp;
     }      }
     if ($ENV{'form.sortedby'} eq "revdomain"){      if ($env{'form.sortedby'} eq "revdomain"){
         @temp = sort  {$b->[3] cmp $a->[3]} @temp;          @temp = sort  {$b->[3] cmp $a->[3]} @temp;
     }      }
     if ($ENV{'form.sortedby'} eq "subject"){      if ($env{'form.sortedby'} eq "subject"){
         @temp = sort  {lc($a->[1]) cmp lc($b->[1])} @temp;          @temp = sort  {lc($a->[1]) cmp lc($b->[1])} @temp;
     }      }
     if ($ENV{'form.sortedby'} eq "revsubject"){      if ($env{'form.sortedby'} eq "revsubject"){
         @temp = sort  {lc($b->[1]) cmp lc($a->[1])} @temp;          @temp = sort  {lc($b->[1]) cmp lc($a->[1])} @temp;
     }      }
     if ($ENV{'form.sortedby'} eq "status"){      if ($env{'form.sortedby'} eq "course"){
           @temp = sort  {lc($a->[6]) cmp lc($b->[6])} @temp;
       }
       if ($env{'form.sortedby'} eq "revcourse"){
           @temp = sort  {lc($b->[6]) cmp lc($a->[6])} @temp;
       }
       if ($env{'form.sortedby'} eq "status"){
         @temp = sort  {$a->[4] cmp $b->[4]} @temp;          @temp = sort  {$a->[4] cmp $b->[4]} @temp;
     }      }
     if ($ENV{'form.sortedby'} eq "revstatus"){      if ($env{'form.sortedby'} eq "revstatus"){
         @temp = sort  {$b->[4] cmp $a->[4]} @temp;          @temp = sort  {$b->[4] cmp $a->[4]} @temp;
     }      }
     return @temp;      return @temp;
 }  }
   
   sub get_course_desc {
       my ($fromcid,$descriptions) = @_;
       my $description;
       if (!$fromcid) {
           return $description;
       } else {
           if (defined($$descriptions{$fromcid})) {
               $description = $$descriptions{$fromcid};
           } else {
               if (defined($env{'course.'.$fromcid.'.description'})) {
                   $description = $env{'course.'.$fromcid.'.description'};
               } else {
                   my %courseinfo=&Apache::lonnet::coursedescription($fromcid);                $description = $courseinfo{'description'};
                   $description = $courseinfo{'description'};
               }
               $$descriptions{$fromcid} = $description;
           }
           return $description;
       }
   }
   
   # ======================================================== Display new messages
   
   
   sub disnew {
       my $r=shift;
       my %lt=&Apache::lonlocal::texthash(
          'nm' => 'New Messages',
          'su' => 'Subject',
                                          'co' => 'Course',
          'da' => 'Date',
          'us' => 'Username',
          'op' => 'Open',
          'do' => 'Domain'
          );
       my @msgids = sort(&Apache::lonnet::getkeys('nohist_email'));
       my @newmsgs;
       my %setters = ();
       my $startblock = 0;
       my $endblock = 0;
       my %blocked = ();
       my $numblocked = 0;
       # Check for blocking of display because of scheduled online exams.
       &blockcheck(\%setters,\$startblock,\$endblock);
       my %status_cache = 
    &Apache::lonnet::get('email_status',\@msgids);
       my %descriptions;
       foreach (@msgids) {
    my $msgid=&Apache::lonnet::escape($_);
           my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
       &Apache::lonmsg::unpackmsgid($msgid,undef,undef,\%status_cache);
           if (defined($sendtime) && $sendtime!~/error/) {
               my $description = &get_course_desc($fromcid,\%descriptions);
               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    => $msgid,
                           sendtime => $sendtime,
                           shortsub => &Apache::lonnet::unescape($shortsubj),
                           from     => $fromname,
                           fromdom  => $fromdom,
                           course   => $description 
                           }
                   }
               }
           }
       }
       if ($#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><th>$lt{'co'}</th></tr>
   TABLEHEAD
           foreach my $msg (@newmsgs) {
               $r->print(<<"ENDLINK");
   <tr class="new" bgcolor="#FFBB77" onMouseOver="javascript:style.backgroundColor='#DD9955'" 
   onMouseOut="javascript:style.backgroundColor='#FFBB77'">
   <td><a href="/adm/email?dismode=new&display=$msg->{'msgid'}">$lt{'op'}</a></td>
   ENDLINK
               foreach ('sendtime','from','fromdom','shortsub','course') {
                   $r->print("<td>$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  # ======================================================== Display all messages
   
 sub disall {  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>  <script>
     function checkall() {      function checkall() {
  for (i=0; i<document.forms.disall.elements.length; i++) {   for (i=0; i<document.forms.disall.elements.length; i++) {
Line 700  sub disall { Line 1121  sub disall {
     }      }
 </script>  </script>
 ENDDISHEADER  ENDDISHEADER
     $r->print('<h1>'.&mt('Display All Messages').'</h1><form method=post name=disall '.      my $fsqs='&folder='.$folder;
       'action="/adm/email">'.      my @temp=sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder);
       '<table border=2><tr><th colspan=2>&nbsp</th><th>');      my $totalnumber=$#temp+1;
     if ($ENV{'form.sortedby'} eq "revdate") {      unless ($totalnumber>0) {
  $r->print('<a href = "?sortedby=date">'.&mt('Date').'</a></th>');   $r->print('<h2>'.&mt('Empty Folder').'</h2>');
    return;
       }
       unless ($interdis) {
    $interdis=20;
       }
       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 {      } else {
  $r->print('<a href = "?sortedby=revdate">'.&mt('Date').'</a></th>');   $r->print('<a href = "?sortedby=revdate'.$fsqs.'">'.&mt('Date').'</a></th>');
     }      }
     $r->print('<th>');      $r->print('<th>');
     if ($ENV{'form.sortedby'} eq "revuser") {      if ($env{'form.sortedby'} eq "revuser") {
  $r->print('<a href = "?sortedby=user">'.&mt('Username').'</a>');   $r->print('<a href = "?sortedby=user'.$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 {      } else {
  $r->print('<a href = "?sortedby=revuser">'.&mt('Username').'</a>');   $r->print('<a href = "?sortedby=revdomain'.$fsqs.'">'.&mt('Domain').'</a>');
     }      }
     $r->print('</th><th>');      $r->print('</th><th>');
     if ($ENV{'form.sortedby'} eq "revdomain") {      if ($env{'form.sortedby'} eq "revsubject") {
  $r->print('<a href = "?sortedby=domain">'.&mt('Domain').'</a>');   $r->print('<a href = "?sortedby=subject'.$fsqs.'">'.&mt('Subject').'</a>');
     } else {      } else {
  $r->print('<a href = "?sortedby=revdomain">'.&mt('Domain').'</a>');      $r->print('<a href = "?sortedby=revsubject'.$fsqs.'">'.&mt('Subject').'</a>');
     }      }
     $r->print('</th><th>');      $r->print('</th><th>');
     if ($ENV{'form.sortedby'} eq "revsubject") {      if ($env{'form.sortedby'} eq "revcourse") {
  $r->print('<a href = "?sortedby=subject">'.&mt('Subject').'</a>');          $r->print('<a href = "?sortedby=course'.$fsqs.'">'.&mt('Course').'</a>');
     } else {      } else {
     $r->print('<a href = "?sortedby=revsubject">'.&mt('Subject').'</a>');          $r->print('<a href = "?sortedby=revcourse'.$fsqs.'">'.&mt('Course').'</a>');
     }      }
     $r->print('</th><th>');      $r->print('</th><th>');
     if ($ENV{'form.sortedby'} eq "revstatus") {      if ($env{'form.sortedby'} eq "revstatus") {
  $r->print('<a href = "?sortedby=status">'.&mt('Status').'</th>');   $r->print('<a href = "?sortedby=status'.$fsqs.'">'.&mt('Status').'</a></th>');
     } else {      } else {
       $r->print('<a href = "?sortedby=revstatus">'.&mt('Status').'</th>');        $r->print('<a href = "?sortedby=revstatus'.$fsqs.'">'.&mt('Status').'</a></th>');
     }      }
     $r->print('</tr>');      $r->print("</tr>\n");
     my @temp=sortedmessages();      for (my $n=$firstdis;$n<=$lastdis;$n++) {
     foreach (@temp){   my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$origID,$description)= @{$temp[$n]};
  my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$origID)= @$_;  
  if (($status ne 'deleted') && defined($sendtime) && $sendtime!~/error/) {   if (($status ne 'deleted') && defined($sendtime) && $sendtime!~/error/) {
     if ($status eq 'new') {      if ($status eq 'new') {
  $r->print('<tr bgcolor="#FFBB77">');   $r->print('<tr bgcolor="#FFBB77" onMouseOver="javascript:style.backgroundColor=\'#DD9955\'"  onMouseOut="javascript:style.backgroundColor=\'#FFBB77\'">');
     } elsif ($status eq 'read') {      } elsif ($status eq 'read') {
  $r->print('<tr bgcolor="#BBBB77">');   $r->print('<tr bgcolor="#BBBB77" onMouseOver="javascript:style.backgroundColor=\'#999944\'"  onMouseOut="javascript:style.backgroundColor=\'#BBBB77\'">');
     } elsif ($status eq 'replied') {      } elsif ($status eq 'replied') {
  $r->print('<tr bgcolor="#AAAA88">');    $r->print('<tr bgcolor="#AAAA88" onMouseOver="javascript:style.backgroundColor=\'#888855\'"  onMouseOut="javascript:style.backgroundColor=\'#AAAA88\'">'); 
     } else {      } else {
  $r->print('<tr bgcolor="#99BBBB">');   $r->print('<tr bgcolor="#99BBBB" onMouseOver="javascript:style.backgroundColor=\'#669999\'"  onMouseOut="javascript:style.backgroundColor=\'#99BBBB\'">');
     }      }
     $r->print('<td><a href="/adm/email?display='.$origID.$sqs.       $r->print('<td><input type="checkbox" name="delmark_'.$origID.'" /></td><td><a href="/adm/email?display='.$origID.$sqs. 
       '">'.&mt('Open').'</a></td><td><a href="/adm/email?markdel='.$origID.$sqs.        '">'.&mt('Open').'</a></td><td>'.
       '">'.&mt('Delete').'</a><input type=checkbox name="delmark_'.$origID.'"></td>'.        ($folder ne 'trash'?'<a href="/adm/email?markdel='.$origID.$sqs.
         '">'.&mt('Delete'):'&nbsp').'</a></td>'.
       '<td>'.&Apache::lonlocal::locallocaltime($sendtime).'</td><td>'.        '<td>'.&Apache::lonlocal::locallocaltime($sendtime).'</td><td>'.
       $fromname.'</td><td>'.$fromdomain.'</td><td>'.        $fromname.'</td><td>'.$fromdomain.'</td><td>'.
       &Apache::lonnet::unescape($shortsubj).'</td><td>'.        &Apache::lonnet::unescape($shortsubj).'</td><td>'.
                       $status.'</td></tr>');                        $description.'</td><td>'.$status.'</td></tr>'."\n");
    } elsif ($status eq 'deleted') {
   # purge
       my ($result,$msg) = 
    &movemsg(&Apache::lonnet::unescape($origID),$folder,'trash');
       
  }   }
     }         }   
     $r->print('</table><p>'.      $r->print("</table>\n<p>".
               '<a href="javascript:checkall()">'.&mt('Check All').'</a>&nbsp;'.    '<a href="javascript:checkall()">'.&mt('Check All').'</a>&nbsp;'.
               '<a href="javascript:uncheckall()">'.&mt('Uncheck All').'</a><p>'.    '<a href="javascript:uncheckall()">'.&mt('Uncheck All').'</a></p>'.
       '<input type="hidden" name="sortedby" value="'.$ENV{'form.sortedby'}.'" />'.    '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />');
               '<input type=submit name="markeddel" value="'.&mt('Delete Checked').'">'.      if ($folder ne 'trash') {
               '</form></body></html>');   $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);
       }
 }  }
   
 # ============================================================== Compose output  # ============================================================== Compose output
   
 sub compout {  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 $dissub='';
     my $dismsg='';      my $dismsg='';
       my $disbase='';
     my $func=&mt('Send New');      my $func=&mt('Send New');
     my %lt=&Apache::lonlocal::texthash('us' => 'Username',      my %lt=&Apache::lonlocal::texthash('us' => 'Username',
        'do' => 'Domain',         'do' => 'Domain',
Line 778  sub compout { Line 1273  sub compout {
        'ca' => 'Cancel',         'ca' => 'Cancel',
        'ma' => 'Mail');         'ma' => 'Mail');
   
     if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {      if (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
    || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
       '/'.$env{'request.course.sec'})) {
  my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");   my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
          $dispcrit=           $dispcrit=
  '<input type="checkbox" name="critmsg"> '.&mt('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"> '.&mt('Send as critical message').'  ' .   '<label><input type="checkbox" name="sendbck" /> '.&mt('Send as critical message').'  ' .
  &mt('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>'.
   '<!-- <p><label><input type="checkbox" name="rsspost" /> '.
     &mt('Include in course RSS newsfeed').'</label></p>-->';      }
       my %message;
       my %content;
       my $defdom=$env{'user.domain'};
     if ($forwarding) {      if ($forwarding) {
        $dispcrit.='<input type="hidden" name="forwid" value="'.   %message=&Apache::lonnet::get('nohist_email'.$suffix,[$forwarding]);
    $forwarding.'">';   %content=&unpackagemsg($message{$forwarding},$folder);
        $func=&mt('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');
   
        $dissub=&mt('Forwarding').': '.$content{'subject'};   $dissub=&mt('Forwarding').': '.$content{'subject'};
        $dismsg=&mt('Forwarded message from').' '.   $dismsg=&mt('Forwarded message from').' '.
    $content{'sendername'}.' '.&mt('at').' '.$content{'senderdomain'};      $content{'sendername'}.' '.&mt('at').' '.$content{'senderdomain'};
    if ($content{'baseurl'}) {
       $disbase='<input type="hidden" name="baseurl" value="'.&Apache::lonnet::escape($content{'baseurl'}).'" />';
    }
       }
       if ($replying) {
    %message=&Apache::lonnet::get('nohist_email'.$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 $defdom=$ENV{'user.domain'};      my $citation=&displayresource(%content);
     if ($ENV{'form.recdom'}) { $defdom=$ENV{'form.recdom'}; }      if ($env{'form.recdom'}) { $defdom=$env{'form.recdom'}; }
       $r->print(        $r->print(
                 '<form action="/adm/email"  name="compemail" method="post"'.                  '<form action="/adm/email"  name="compemail" method="post"'.
                 ' enctype="multipart/form-data">'."\n".                  ' enctype="multipart/form-data">'."\n".
                 '<input type="hidden" name="sendmail" value="on">'."\n".                  '<input type="hidden" name="sendmail" value="on" />'."\n".
                 '<table>');                  '<table>');
     unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {      unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {
         my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');   if ($replying) {
         my $selectlink=&Apache::loncommon::selectstudent_link      $r->print('<tr><td colspan="2">'.&mt('Replying to').' '.
         &Apache::loncommon::aboutmewrapper(
    &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).' ('.
         $content{'sendername'}.'@'.
         $content{'senderdomain'}.')'.
         '<input type="hidden" name="recuname" value="'.$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');      ('compemail','recuname','recdomain');
        $r->print(<<"ENDREC");      $r->print(<<"ENDREC");
 <table>  <tr><td>$lt{'us'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recname'}" /></td><td rowspan="2">$selectlink</td></tr>
 <tr><td>$lt{'us'}:</td><td><input type="text" size="12" name="recuname" value="$ENV{'form.recname'}"></td><td rowspan="2">$selectlink</td></tr>  
 <tr><td>$lt{'do'}:</td>  <tr><td>$lt{'do'}:</td>
 <td>$domform</td></tr>  <td>$domform</td></tr>
 ENDREC  ENDREC
           }
     }      }
     my $latexHelp = Apache::loncommon::helpLatexCheatsheet();      my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
     if ($broadcast ne 'upload') {      if ($broadcast ne 'upload') {
        $r->print(<<"ENDCOMP");         $r->print(<<"ENDCOMP");
 <tr><td>$lt{'ad'}<br /><tt>username\@domain,username\@domain, ...  <tr><td>$lt{'ad'}<br /><tt>username\@domain,username\@domain, ...
 </tt></td><td>  </tt></td><td>
 <input type="text" size="50" name="additionalrec"></td></tr>  <input type="text" size="50" name="additionalrec" /></td></tr>
 <tr><td>$lt{'sb'}:</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>  </td></tr></table>
 $latexHelp  $latexHelp
 <textarea name="message" cols="80" rows="10" wrap="hard">$dismsg  <textarea name="message" id="message" cols="80" rows="15" wrap="hard">$dismsg
 </textarea></p><br />  </textarea></p><br />
 $dispcrit  $dispcrit
   $disbase
   <input type="hidden" name="folder" value="$folder" />
   <input type="hidden" name="dismode" value="$dismode" />
 <input type="submit" name="send" value="$func $lt{'ma'}" />  <input type="submit" name="send" value="$func $lt{'ma'}" />
 <input type="submit" name="cancel" value="$lt{'ca'}" />  <input type="submit" name="cancel" value="$lt{'ca'}" /><hr />
   $citation
 ENDCOMP  ENDCOMP
     } else { # $broadcast is 'upload'      } else { # $broadcast is 'upload'
  $r->print(<<ENDUPLOAD);   $r->print(<<ENDUPLOAD);
 <input type=hidden name=sendmode value=upload>  <input type="hidden" name="sendmode" value="upload" />
   <input type="hidden" name="send" value="on" />
 <h3>Generate messages from a file</h3>  <h3>Generate messages from a file</h3>
 <p>  <p>
 Subject: <input type=text size=50 name=subject>  Subject: <input type="text" size="50" name="subject" />
 </p>  </p>
 <p>General message text<br />  <p>General message text<br />
 <textarea name=message cols=60 rows=10 wrap=hard>$dismsg  <textarea name="message" id="message" cols="60" rows="10" wrap="hard">$dismsg
 </textarea></p>  </textarea></p>
 <p>  <p>
 The file format for the uploaded portion of the message is:  The file format for the uploaded portion of the message is:
Line 852  username3\@domain1: text Line 1395  username3\@domain1: text
 The messages will be assembled from all lines with the respective   The messages will be assembled from all lines with the respective 
 <tt>username\@domain</tt>, and appended to the general message text.</p>  <tt>username\@domain</tt>, and appended to the general message text.</p>
 <p>  <p>
 <input type=file name=upfile size=20><p>  <input type="file" name="upfile" size="40" /></p><p>
 $dispcrit  $dispcrit
 <input type=submit value="Upload and send">  <input type="submit" value="Upload and Send" /></p>
 ENDUPLOAD  ENDUPLOAD
     }      }
     if ($broadcast eq 'group') {      if ($broadcast eq 'group') {
        &discourse;         &discourse($r);
     }      }
     $r->print('</form>');      $r->print('</form>'.
         &Apache::lonfeedback::generate_preview_button('compemail','message').
         &Apache::lonhtmlcommon::htmlareaselectactive('message'));
 }  }
   
 # ---------------------------------------------------- Display all face to face  # ---------------------------------------------------- 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'})
    && ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
         '/'.$env{'request.course.sec'})) {
    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/);
    # &Apache::lonfeedback::newline_to_br(\$content{'message'});
    $result.='Recorded by '.
               $content{'sendername'}.'@'.$content{'senderdomain'}."\n";
           $result.=
               &Apache::lontexconvert::msgtexconverted($content{'message'})."\n";
        }
       return $result;
   }
   
 sub disfacetoface {  sub disfacetoface {
     my ($r,$user,$domain)=@_;      my ($r,$user,$domain)=@_;
     unless ($ENV{'request.course.id'}) { return; }      my $target=$env{'form.grade_target'};
     unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {      unless ($env{'request.course.id'}) { return; }
       if  (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
    && ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
          '/'.$env{'request.course.sec'})) {
    $r->print('Not allowed');
  return;   return;
     }      }
     my %records=&Apache::lonnet::dump('nohist_email',      my %records=&Apache::lonnet::dump('nohist_email',
  $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},   $env{'course.'.$env{'request.course.id'}.'.domain'},
  $ENV{'course.'.$ENV{'request.course.id'}.'.num'},   $env{'course.'.$env{'request.course.id'}.'.num'},
                          '%255b'.$user.'%253a'.$domain.'%255d');                           '%255b'.$user.'%253a'.$domain.'%255d');
     my $result='';      my $result='';
     foreach (sort keys %records) {      foreach (sort keys %records) {
         my %content=&unpackagemsg($records{$_});          my %content=&unpackagemsg($records{$_});
         next if ($content{'senderdomain'} eq '');          next if ($content{'senderdomain'} eq '');
         $content{'message'}=~s/\n/\<br\>/g;   &Apache::lonfeedback::newline_to_br(\$content{'message'});
         if ($content{'subject'}=~/^Record/) {          if ($content{'subject'}=~/^Record/) {
     $result.='<h3>'.&mt('Record').'</h3>';      $result.='<h3>'.&mt('Record').'</h3>';
           } elsif ($content{'subject'}=~/^Broadcast/) {
               $result .='<h3>'.&mt('Broadcast Message').'</h3>';
               if ($content{'subject'}=~/^Broadcast\./) {
                   %content=&unpackagemsg($content{'message'});
                   $content{'message'}=
                       '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
                       $content{'message'};
               }    
         } else {          } else {
             $result.='<h3>'.&mt('Sent Message').'</h3>';              $result.='<h3>'.&mt('Critical Message').'</h3>';
             %content=&unpackagemsg($content{'message'});              %content=&unpackagemsg($content{'message'});
             $content{'message'}=              $content{'message'}=
                 '<b>Subject: '.$content{'subject'}.'</b><br />'.                  '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
  $content{'message'};   $content{'message'};
         }          }
         $result.=&mt('By').': <b>'.          $result.=&mt('By').': <b>'.
Line 894  sub disfacetoface { Line 1478  sub disfacetoface {
  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.   &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
 $content{'sendername'}.'@'.  $content{'sendername'}.'@'.
             $content{'senderdomain'}.') '.$content{'time'}.              $content{'senderdomain'}.') '.$content{'time'}.
             '<br><blockquote>'.              '<br /><pre>'.
               &Apache::lontexconvert::msgtexconverted($content{'message'}).                &Apache::lontexconvert::msgtexconverted($content{'message'}).
       '</blockquote>';        '</pre>';
      }       }
     # Check to see if there were any messages.      # Check to see if there were any messages.
     if ($result eq '') {      if ($result eq '') {
         $r->print("<p><b>No notes, face-to-face discussion records, or critical messages in this course.</b></p>");   if ($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 {      } else {
        $r->print($result);         $r->print($result);
     }      }
Line 910  $content{'sendername'}.'@'. Line 1498  $content{'sendername'}.'@'.
   
 sub facetoface {  sub facetoface {
     my ($r,$stage)=@_;      my ($r,$stage)=@_;
     unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {      if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
    && ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
         '/'.$env{'request.course.sec'})) {
    $r->print('Not allowed');
  return;   return;
     }      }
       &printheader($r,
    '/adm/email?recordftf=query',
    "User Notes, Face-to-Face, Critical Messages, Broadcast Messages");
 # from query string  # 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'};      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  # already filled in
     if ($ENV{'form.recdomain'}) { $defdom=$ENV{'form.recdomain'}; }      if ($env{'form.recdomain'}) { $defdom=$env{'form.recdomain'}; }
 # generate output  # generate output
     my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');      my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
     my $stdbrws = &Apache::loncommon::selectstudent_link      my $stdbrws = &Apache::loncommon::selectstudent_link
  ('stdselect','recuname','recdomain');   ('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");      $r->print(<<"ENDTREC");
 <h3>User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course</h3>  <h3>$lt{'head'}</h3>
 <form method="post" action="/adm/email" name="stdselect">  <form method="post" action="/adm/email" name="stdselect">
 <input type="hidden" name="recordftf" value="retrieve" />  <input type="hidden" name="recordftf" value="retrieve" />
 <table>  <table>
 <tr><td>Username:</td><td><input type=text size=12 name=recuname value="$ENV{'form.recuname'}"></td>  <tr><td>$lt{'user'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recuname'}" /></td>
 <td rowspan="2">  <td rowspan="2">
 $stdbrws  $stdbrws
 <input type="submit" value="Retrieve discussion and message records"></td>  <input type="submit" value="$lt{'subm'}" /></td>
 </tr>  </tr>
 <tr><td>Domain:</td>  <tr><td>$lt{'dom'}:</td>
 <td>$domform</td></tr>  <td>$domform</td></tr>
 </table>  </table>
 </form>  </form>
 ENDTREC  ENDTREC
     if (($stage ne 'query') &&      if (($stage ne 'query') &&
         ($ENV{'form.recdomain'}) && ($ENV{'form.recuname'})) {          ($env{'form.recdomain'}) && ($env{'form.recuname'})) {
         chomp($ENV{'form.newrecord'});          chomp($env{'form.newrecord'});
         if ($ENV{'form.newrecord'}) {          if ($env{'form.newrecord'}) {
              my $recordtxt = $env{'form.newrecord'};
            &user_normal_msg_raw(             &user_normal_msg_raw(
             $ENV{'course.'.$ENV{'request.course.id'}.'.num'},              $env{'course.'.$env{'request.course.id'}.'.num'},
             $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},              $env{'course.'.$env{'request.course.id'}.'.domain'},
             'Record ['.$ENV{'form.recuname'}.':'.$ENV{'form.recdomain'}.']',              &mt('Record').
     $ENV{'form.newrecord'});       ' ['.$env{'form.recuname'}.':'.$env{'form.recdomain'}.']',
         }      $recordtxt);
         $r->print('<h3>'.&Apache::loncommon::plainname($ENV{'form.recuname'},          }
      $ENV{'form.recdomain'}).'</h3>');          $r->print('<h3>'.&Apache::loncommon::plainname($env{'form.recuname'},
         &disfacetoface($r,$ENV{'form.recuname'},$ENV{'form.recdomain'});       $env{'form.recdomain'}).'</h3>');
           &disfacetoface($r,$env{'form.recuname'},$env{'form.recdomain'});
  $r->print(<<ENDRHEAD);   $r->print(<<ENDRHEAD);
 <form method="post" action="/adm/email">  <form method="post" action="/adm/email">
 <input name="recdomain" value="$ENV{'form.recdomain'}" type="hidden" />  <input name="recdomain" value="$env{'form.recdomain'}" type="hidden" />
 <input name="recuname" value="$ENV{'form.recuname'}" type="hidden" />  <input name="recuname" value="$env{'form.recuname'}" type="hidden" />
 ENDRHEAD  ENDRHEAD
         $r->print(<<ENDBFORM);          $r->print(<<ENDBFORM);
 <hr />New Record (record is visible to course faculty and staff)<br />  <hr />$lt{'newr'}<br />
 <textarea name="newrecord" cols="80" rows="10" wrap="hard"></textarea>  <textarea name="newrecord" cols="80" rows="10" wrap="hard"></textarea>
 <br />  <br />
 <input type="hidden" name="recordftf" value="post" />  <input type="hidden" name="recordftf" value="post" />
 <input type="submit" value="Post this record" />  <input type="submit" value="$lt{'post'}" />
 </form>  </form>
 ENDBFORM  ENDBFORM
     }      }
 }  }
   
   # ----------------------------------------------------------- Blocking during exams
   
   sub examblock {
       my ($r,$action) = @_;
       unless ($env{'request.course.id'}) { return;}
       if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
    && ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
         '/'.$env{'request.course.sec'})) {
    $r->print('Not allowed');
    return;
       }
       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).$sqs.
         '"><b>'.&mt('Delete').'</b></a></td>'.
         '<td><a href="/adm/email?'.$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>');
       }
       $r->print('</tr></table>');
       if ($env{'user.adv'}) {
    $r->print('<table border="2" width="100%"><tr bgcolor="#FFAAAA"><td>'.&mt('Currently available actions (will open extra window)').':</td>');
    my $symb=&Apache::lonnet::symbread($content{'baseurl'});      
    if (&Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
    $r->print('<td><b>'.&Apache::loncommon::track_student_link(&mt('View recent activity'),$content{'sendername'},$content{'senderdomain'},'check').'</b></td>');
       }
    if (&Apache::lonnet::allowed('opa',$env{'request.course.id'}) && $symb) {
       $r->print('<td><b>'.&Apache::loncommon::pprmlink(&mt('Set/Change parameters'),$content{'sendername'},$content{'senderdomain'},$symb,'check').'</b></td>');
    }
    if (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}) && $symb) {
       $r->print('<td><b>'.&Apache::loncommon::pgrdlink(&mt('Set/Change grades'),$content{'sendername'},$content{'senderdomain'},$symb,'check').'</b></td>');
    }
    $r->print('</tr></table>');
       }
       my $tolist;
       my @recipients = ();
       for (my $i=0; $i<@{$content{'recuser'}}; $i++) {
           $recipients[$i] =  &Apache::loncommon::aboutmewrapper(
              &Apache::loncommon::plainname($content{'recuser'}[$i],
                                         $content{'recdomain'}[$i]),
                 $content{'recuser'}[$i],$content{'recdomain'}[$i]).
          ' ('.$content{'recuser'}[$i].' at '.$content{'recdomain'}[$i].') ';
       }
       $tolist = join(', ',@recipients);
       $r->print('<br /><b>'.&mt('Subject').':</b> '.$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> '.
                 $tolist).
         ($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'},
       $content{'courseid'});
       } elsif ($env{'user.adv'}) {
    return $content{'citation'};
       }
       return '';
   }
   
   # ================================================================== The Header
   
   sub header {
       my ($r,$title,$baseurl)=@_;
       $r->print(&Apache::lonxml::xmlbegin().
         '<head>'.&Apache::lonxml::fontsettings().
         '<title>Communication and Messages</title>'.
         &Apache::lonhtmlcommon::htmlareaheaders());
       if ($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='';
       my %specialmsg_status;
       my $numspecial = 0;
       if ($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}='';
       }
    }
   
           my $savemsg;
           my $msgtype;
           my %sentmessage;
           if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
               (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
        || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
    '/'.$env{'request.course.sec'})
        )) {
               $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'},1);
               $msgtype = 'critical';
           } else {
               $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'});
           }
   
    foreach (keys %toaddr) {
       my ($recuname,$recdomain)=split(/\:/,$_);
               my $msgtxt = $savemsg;
       if ($toaddr{$_}) { $msgtxt.='<hr />'.$toaddr{$_}; }
       my $thismsg;
       if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) && 
    (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
    || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
        '/'.$env{'request.course.sec'}))) {
    $r->print(&mt('Sending critical message').' '.$recuname.'@'.$recdomain.': ');
    $thismsg=&user_crit_msg($recuname,$recdomain,
    &Apache::lonfeedback::clear_out_html($env{'form.subject'}),
    $msgtxt,
    $env{'form.sendbck'},$env{'form.permanent'},\$sentmessage{$_});
       } 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'},\$sentmessage{$_});
               }
       if (($env{'request.course.id'}) && (($msgtype eq 'critical') || 
                                            ($env{'form.sendmode'} eq 'group'))) {
           $specialmsg_status{$recuname.':'.$recdomain}  = $thismsg;
                   if ($thismsg eq 'ok') {
                       $numspecial ++;
                   }
       }
       $r->print($thismsg.'<br />');
       $sendstatus.=' '.$thismsg;
    }
           if (($env{'request.course.id'}) && (($env{'form.sendmode'} eq 'group')
                                                 || ($msgtype eq 'critical'))) {
               my $subj_prefix;
               if ($msgtype eq 'critical') {
                   $subj_prefix = 'Critical.';
               } else {
                   $subj_prefix = 'Broadcast.';
               }
               my ($specialmsgid,$specialresult);
               my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
               my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
               my $course_str = &Apache::lonnet::escape('['.$cnum.':'.$cdom.']');
   
               if ($numspecial) {
                   $specialresult = &user_normal_msg_raw($cnum,$cdom,$subj_prefix.
                       ' '.$course_str,$savemsg,undef,undef,undef,
                       undef,undef,\$specialmsgid);
                   $specialmsgid = &Apache::lonnet::unescape($specialmsgid);
               }
               if ($specialresult eq 'ok') {
                   my $record_sent;
                   my @recusers = ();
                   my @recudoms = ();
                   my ($stamp,$msgsubj,$msgname,$msgdom,$msgcount,$context,$pid) = 
                               split(/\:/,&Apache::lonnet::unescape($specialmsgid));
                   foreach my $recipient (sort(keys(%toaddr))) {
                       if ($specialmsg_status{$recipient} eq 'ok') {
                           my $usersubj = $subj_prefix.'['.$recipient.']';
                           my $usermsgid = &buildmsgid($stamp,$usersubj,$msgname,
                                                 $msgdom,$msgcount,$context,$pid);
                           &user_normal_msg_raw($cnum,$cdom,$subj_prefix.
                           ' ['.$recipient.']',$sentmessage{$recipient},
                           undef,undef,undef,undef,$usermsgid);
                           my ($uname,$udom) = split/:/,$recipient;
                           push(@recusers,$uname);
                           push(@recudoms,$udom);
                       }
                   }
                   if (@recusers) {
                       my $specialmessage;
                       my $sentsubj = $subj_prefix.' ('.$numspecial.' sent) '.
                       &Apache::lonfeedback::clear_out_html($env{'form.subject'});
                       $sentsubj = &HTML::Entities::encode($sentsubj,'<>&"');
                       my $sentmsgid = &buildmsgid($stamp,$sentsubj,$msgname,
                                                 $msgdom,$msgcount,$context,$pid);
                       ($specialmsgid,$specialmessage) =
                            &packagemsg(&Apache::lonfeedback::clear_out_html(
                                $env{'form.subject'}),$savemsg,undef,undef,undef,
                                               \@recusers,\@recudoms,$sentmsgid);
                       $record_sent = &store_sent_mail($specialmsgid,$specialmessage);
                   }
               } else {
                   &Apache::lonnet::logthis('Failed to create record of critical message or broadcast in '.$env{'course.'.$env{'request.course.id'}.'.num'}.' at '.$env{'course.'.$env{'request.course.id'}.'.domain'}.' - no msgid generated');
               }
           }
       } else {
    &printheader($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  # ===================================================================== Handler
   
 sub handler {  sub handler {
     my $r=shift;      my $r=shift;
   
 # ----------------------------------------------------------- Set document type  # ----------------------------------------------------------- Set document type
       
   &Apache::loncommon::content_type($r,'text/html');      &Apache::loncommon::content_type($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  # --------------------------- Get query string for limited number of parameters
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},      &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
         ['display','replyto','forward','markread','markdel','markunread',          ['display','replyto','forward','markread','markdel','markunread',
          'sendreply','compose','sendmail','critical','recname','recdom',           'sendreply','compose','sendmail','critical','recname','recdom',
          'recordftf','sortedby']);           'recordftf','sortedby','block','folder','startdis','interdis',
     $sqs='&sortedby='.$ENV{'form.sortedby'};   'showcommentbaseurl','dismode']);
       $sqs='&sortedby='.$env{'form.sortedby'};
   
 # ------------------------------------------------------ They checked for email  # ------------------------------------------------------ They checked for email
   &Apache::lonnet::put('email_status',{'recnewemail'=>0});      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  # --------------------------------------------------------------- Render Output
   if (!$ENV{'form.display'}) {  
       $r->print('<html><head><title>EMail and Messaging</title>'.  
  &Apache::loncommon::studentbrowser_javascript().'</head>'.  
  &Apache::loncommon::bodytag('EMail and Messages'));  
   }  
   if ($ENV{'form.display'}) {  
       my $msgid=$ENV{'form.display'};  
       &statuschange($msgid,'read');  
       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);  
       my %content=&unpackagemsg($message{$msgid});  
 # info to generate "next" and "previous" buttons  
       my @messages=&sortedmessages();  
       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  
       $r->print('<html><head><title>EMail and Messaging</title>');  
       if (defined($content{'baseurl'})) {  
   $r->print("<base href=\"http://$ENV{'SERVER_NAME'}/$content{'baseurl'}\" />");  
       }  
       $r->print(&Apache::loncommon::studentbrowser_javascript().  
  '</head>'.  
  &Apache::loncommon::bodytag('EMail and Messages'));  
       $r->print('<b>'.&mt('Subject').':</b> '.$content{'subject'}.  
              '<br><b>'.&mt('From').':</b> '.  
 &Apache::loncommon::aboutmewrapper(  
 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),  
 $content{'sendername'},$content{'senderdomain'}).' ('.  
                                  $content{'sendername'}.' at '.  
                                  $content{'senderdomain'}.') '.  
              '<br><b>'.&mt('Time').':</b> '.$content{'time'}.'<p>'.  
              '<table border=2><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?sortedby='.$ENV{'form.sortedby'}.  
  '"><b>'.&mt('Display all Messages').'</b></a></td>');  
       if ($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>');  
        }  
        $r->print('</tr></table><p><pre>'.  
              &Apache::lontexconvert::msgtexconverted($content{'message'}).  
              '</pre><hr>'.$content{'citation'});  
   } elsif ($ENV{'form.replyto'}) {  
       &comprep($r,$ENV{'form.replyto'});  
   } elsif ($ENV{'form.sendreply'}) {  
       if ($ENV{'form.send'}) {  
   my $msgid=$ENV{'form.sendreply'};  
   my %message=&Apache::lonnet::get('nohist_email',[$msgid]);  
   my %content=&unpackagemsg($message{$msgid},1);  
   &statuschange($msgid,'replied');  
   if ((($ENV{'form.critmsg'}) || ($ENV{'form.sendbck'})) &&   
       (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {  
       $r->print(&mt('Sending critical message').': '.  
  &user_crit_msg($content{'sendername'},  
        $content{'senderdomain'},  
        &Apache::lonfeedback::clear_out_html($ENV{'form.subject'}),  
        &Apache::lonfeedback::clear_out_html($ENV{'form.message'}),  
        $ENV{'form.sendbck'}));  
   } else {  
       $r->print(&mt('Sending').': '.&user_normal_msg($content{'sendername'},  
      $content{'senderdomain'},  
      &Apache::lonfeedback::clear_out_html($ENV{'form.subject'}),  
      &Apache::lonfeedback::clear_out_html($ENV{'form.message'})));  
   }  
       }  
       if ($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.recordftf'}) {  
       &facetoface($r,$ENV{'form.recordftf'});  
   } elsif ($ENV{'form.sendmail'}) {  
       my $sendstatus='';  
       if ($ENV{'form.send'}) {  
   my %content=();  
   undef %content;  
   if ($ENV{'form.forwid'}) {  
       my $msgid=$ENV{'form.forwid'};  
       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);  
       %content=&unpackagemsg($message{$msgid},1);  
       &statuschange($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 $msgtxt=&Apache::lonfeedback::clear_out_html($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(&mt('Sending critical message').' ...');  
                   $sendstatus.=' '.&user_crit_msg($recuname,$recdomain,  
    &Apache::lonfeedback::clear_out_html($ENV{'form.subject'}),  
    $msgtxt,  
    $ENV{'form.sendbck'});  
       } else {  
   $r->print(&mt('Sending').' ...');  
                   $sendstatus.=' '.&user_normal_msg($recuname,$recdomain,  
                          &Apache::lonfeedback::clear_out_html($ENV{'form.subject'}),  
  $msgtxt,  
  $content{'citation'});  
       }  
       $r->print('<br />');  
   }  
       }  
       if ($sendstatus=~/^(\s*(?:ok|con_delayed)\s*)*$/) {  
   if ($ENV{'form.displayedcrit'}) {  
       &discrit($r);  
   } else {  
       &disall($r);  
   }  
       } else {  
   $r->print(  
   '<h2><font color="red">'.&mt('Could not deliver message').'</font></h2>'.  
   &mt('Please use the browser "Back" button and correct the recipient addresses')  
     );  
       }  
   } else {  
       &disall($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');
    my ($result,$msg) = 
       &statuschange($env{'form.markdel'},'deleted',$folder);
    if (!$result) {
       $r->print('<p style="color: red">Failed to delete the message.</p>'.
         '<p style="color: red">'.$msg."</p>\n");
    }
    &Apache::loncommunicate::menu($r);
    &disall($r,($folder?$folder:$dismode));
       } elsif ($env{'form.markedmove'}) {
    my ($total,$failed,@failed_msg)=(0,0);
    foreach my $key (keys(%env)) {
       if ($key=~/^form\.delmark_(.*)$/) {
    my ($result,$msg) =
       &movemsg(&Apache::lonnet::unescape($1),$folder,
        $env{'form.movetofolder'});
    if ($result) {
       $total++;
    } else {
       $failed++;
       push(@failed_msg,$msg);
    }
       }
    }
    &printheader($r,'','Moved Messages');
    if ($failed) {
       $r->print('<p style="color: red;">
                             Failed to move '.$failed.' message(s)</p>');
       $r->print('<p style="color: red;">'.
         join("</p>\n<p style=\"color: red;\">",@failed_msg).
         "</p>\n");
    }
    $r->print('Moved '.$total.' message(s)<p>');
    &Apache::loncommunicate::menu($r);
    &disall($r,($folder?$folder:$dismode));
       } elsif ($env{'form.markeddel'}) {
    my ($total,$failed,@failed_msg)=(0,0);
    foreach my $key (keys(%env)) {
       if ($key=~/^form\.delmark_(.*)$/) {
    my ($result,$msg) = 
       &statuschange(&Apache::lonnet::unescape($1),'deleted',
     $folder);
    if ($result) {
       $total++;
    } else {
       $failed++;
       push(@failed_msg,$msg);
    }
       }
    }
    &printheader($r,'','Deleted Messages');
    if ($failed) {
       $r->print('<p style="color: red;">
                             Failed to delete '.$failed.' message(s)</p>');
       $r->print('<p style="color: red;">'.
         join("</p>\n<p style=\"color: red;\">",@failed_msg).
         "</p>\n");
    }
    $r->print('Deleted '.$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($r);
    }
    if (($env{'form.rsspost'}) && ($env{'request.course.id'})) {
       &Apache::lonrss::addentry($env{'course.'.$env{'request.course.id'}.'.num'},
         $env{'course.'.$env{'request.course.id'}.'.domain'},
         'Course_Announcements',
         $env{'form.subject'},
         $env{'form.message'},'/adm/communicate','public');
    }
    &disall($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  # ================================================= Main program, reset counter
   
Removed from v.1.72  
changed lines
  Added in v.1.173.2.1

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