File:  [LON-CAPA] / loncom / interface / lonmsg.pm
Revision 1.173: download - view: text, annotated - select for diffs
Mon Jan 23 23:15:51 2006 UTC (18 years, 4 months ago) by albertel
Branches: MAIN
CVS tags: version_2_1_X, version_2_1_3, version_2_1_2, HEAD
- stop adding citations to the sent message version
- don't display citations in the not a user.adv case

    1: # The LearningOnline Network with CAPA
    2: # Routines for messaging
    3: #
    4: # $Id: lonmsg.pm,v 1.173 2006/01/23 23:15:51 albertel Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: 
   30: package Apache::lonmsg;
   31: 
   32: =pod
   33: 
   34: =head1 NAME
   35: 
   36: Apache::lonmsg: supports internal messaging
   37: 
   38: =head1 SYNOPSIS
   39: 
   40: lonmsg provides routines for sending messages, receiving messages, and
   41: a handler to allow users to read, send, and delete messages.
   42: 
   43: =head1 OVERVIEW
   44: 
   45: =head2 Messaging Overview
   46: 
   47: X<messages>LON-CAPA provides an internal messaging system similar to
   48: email, but customized for LON-CAPA's usage. LON-CAPA implements its
   49: own messaging system, rather then building on top of email, because of
   50: the features LON-CAPA messages can offer that conventional e-mail can
   51: not:
   52: 
   53: =over 4
   54: 
   55: =item * B<Critical messages>: A message the recipient B<must>
   56: acknowlegde receipt of before they are allowed to continue using the
   57: system, preventing a user from claiming they never got a message
   58: 
   59: =item * B<Receipts>: LON-CAPA can reliably send reciepts informing the
   60: sender that it has been read; again, useful for preventing students
   61: from claiming they did not see a message. (While conventional e-mail
   62: has some reciept support, it's sporadic, e-mail client-specific, and
   63: generally the receiver can opt to not send one, making it useless in
   64: this case.)
   65: 
   66: =item * B<Context>: LON-CAPA knows about the sender, such as where
   67: they are in a course. When a student mails an instructor asking for
   68: help on the problem, the instructor receives not just the student's
   69: question, but all submissions the student has made up to that point,
   70: the user's rendering of the problem, and the complete view the student
   71: saw of the resource, including discussion up to that point. Finally,
   72: the instructor is reading all of this inside of LON-CAPA, not their
   73: email program, so they have full access to LON-CAPA's grading
   74: interface, or other features they may wish to use in response to the
   75: student's query.
   76: 
   77: =item * B<Blocking>: LON-CAPA can block display of e-mails that are 
   78: sent to a student during an online exam. A course coordinator or
   79: instructor can set an open and close date/time for scheduled online
   80: exams in a course. If a user uses the LON-CAPA internal messaging 
   81: system to display e-mails during the scheduled blocking event,  
   82: display of all e-mail sent during the blocking period will be 
   83: suppressed, and a message of explanation, including details of the 
   84: currently active blocking periods will be displayed instead. A user 
   85: who has a course coordinator or instructor role in a course will be
   86: unaffected by any blocking periods for the course, unless the user
   87: also has a student role in the course, AND has selected the student role.
   88: 
   89: =back
   90: 
   91: Users can ask LON-CAPA to forward messages to conventional e-mail
   92: addresses on their B<PREF> screen, but generally, LON-CAPA messages
   93: are much more useful than traditional email can be made to be, even
   94: with HTML support.
   95: 
   96: Right now, this document will cover just how to send a message, since
   97: it is likely you will not need to programmatically read messages,
   98: since lonmsg already implements that functionality.
   99: 
  100: The routines used to package messages and unpackage messages are not
  101: only used by lonmsg when creating/extracting messages for LON-CAPA's
  102: internal messaging system, but also by lonnotify.pm which is available
  103: for use by Domain Coordinators to broadcast standard e-mail to specified
  104: users in their domain.  The XML packaging used in the two cases is very
  105: similar.  The differences are the use of <recuser>$uname</recuser> and 
  106: <recdomain>$udom</recdomain> in stored internal messages, compared 
  107: with <recipient username="$uname:$udom">$email</recipient> in stored
  108: Domain Coordinator e-mail for the storage of information about 
  109: recipients of the message/e-mail.
  110: 
  111: =head1 FUNCTIONS
  112: 
  113: =over 4
  114: 
  115: =cut
  116: 
  117: use strict;
  118: use Apache::lonnet;
  119: use vars qw($msgcount);
  120: use HTML::TokeParser();
  121: use Apache::Constants qw(:common);
  122: use Apache::loncommon();
  123: use Apache::lontexconvert();
  124: use HTML::Entities();
  125: use Mail::Send;
  126: use Apache::lonlocal;
  127: use Apache::loncommunicate;
  128: use Apache::lonfeedback;
  129: use Apache::lonrss();
  130: 
  131: # Querystring component with sorting type
  132: my $sqs;
  133: my $startdis;
  134: my $interdis;
  135: 
  136: # ===================================================================== Package
  137: 
  138: sub packagemsg {
  139:     my ($subject,$message,$citation,$baseurl,$attachmenturl,
  140: 	$recuser,$recdomain,$msgid,$type)=@_;
  141:     $message =&HTML::Entities::encode($message,'<>&"');
  142:     $citation=&HTML::Entities::encode($citation,'<>&"');
  143:     $subject =&HTML::Entities::encode($subject,'<>&"');
  144:     #remove machine specification
  145:     $baseurl =~ s|^http://[^/]+/|/|;
  146:     $baseurl =&HTML::Entities::encode($baseurl,'<>&"');
  147:     #remove machine specification
  148:     $attachmenturl =~ s|^http://[^/]+/|/|;
  149:     $attachmenturl =&HTML::Entities::encode($attachmenturl,'<>&"');
  150:     my $course_context;
  151:     if (defined($env{'form.replyid'})) {
  152:         my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid)=
  153:                    split(/\:/,&Apache::lonnet::unescape($env{'form.replyid'}));
  154:         $course_context = $origcid;
  155:     }
  156:     foreach my $key (keys(%env)) {
  157:         if ($key=~/^form\.(rep)?rec\_(.*)$/) {
  158:             my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid) =
  159:                                     split(/\:/,&Apache::lonnet::unescape($2));
  160:             $course_context = $origcid;
  161:             last;
  162:         }
  163:     }
  164:     unless(defined($course_context)) {
  165:         $course_context = $env{'request.course.id'};
  166:     }
  167:     my $now=time;
  168:     $msgcount++;
  169:     unless(defined($msgid)) {
  170:         $msgid = &buildmsgid($now,$subject,$env{'user.name'},$env{'user.domain'},
  171:                             $msgcount,$course_context,$$);
  172:     }
  173:     my $result='<sendername>'.$env{'user.name'}.'</sendername>'.
  174:            '<senderdomain>'.$env{'user.domain'}.'</senderdomain>'.
  175:            '<subject>'.$subject.'</subject>'.
  176: 	   '<time>'.&Apache::lonlocal::locallocaltime($now).'</time>'.
  177: 	   '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
  178:            '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
  179: 	   '<client>'.$ENV{'REMOTE_ADDR'}.'</client>'.
  180: 	   '<browsertype>'.$env{'browser.type'}.'</browsertype>'.
  181: 	   '<browseros>'.$env{'browser.os'}.'</browseros>'.
  182: 	   '<browserversion>'.$env{'browser.version'}.'</browserversion>'.
  183:            '<browsermathml>'.$env{'browser.mathml'}.'</browsermathml>'.
  184: 	   '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
  185: 	   '<courseid>'.$course_context.'</courseid>'.
  186: 	   '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
  187: 	   '<role>'.$env{'request.role'}.'</role>'.
  188: 	   '<resource>'.$env{'request.filename'}.'</resource>'.
  189:            '<msgid>'.$msgid.'</msgid>';
  190:     if (ref($recuser) eq 'ARRAY') {
  191:         for (my $i=0; $i<@{$recuser}; $i++) {
  192:             if ($type eq 'dcmail') {
  193:                 my ($username,$email) = split(/:/,$$recuser[$i]);
  194:                 $username = &Apache::lonnet::unescape($username);
  195:                 $email = &Apache::lonnet::unescape($email);
  196:                 $username = &HTML::Entities::encode($username,'<>&"');
  197:                 $email = &HTML::Entities::encode($email,'<>&"');
  198:                 $result .= '<recipient username="'.$username.'">'.
  199:                                             $email.'</recipient>';
  200:             } else {
  201:                 $result .= '<recuser>'.$$recuser[$i].'</recuser>'.
  202:                            '<recdomain>'.$$recdomain[$i].'</recdomain>';
  203:             }
  204:         }
  205:     } else {
  206:         $result .= '<recuser>'.$recuser.'</recuser>'.
  207:                    '<recdomain>'.$recdomain.'</recdomain>';
  208:     }
  209:     $result .= '<message>'.$message.'</message>';
  210:     if (defined($citation)) {
  211: 	$result.='<citation>'.$citation.'</citation>';
  212:     }
  213:     if (defined($baseurl)) {
  214: 	$result.= '<baseurl>'.$baseurl.'</baseurl>';
  215:     }
  216:     if (defined($attachmenturl)) {
  217: 	$result.= '<attachmenturl>'.$attachmenturl.'</attachmenturl>';
  218:     }
  219:     return $msgid,$result;
  220: }
  221: 
  222: # ================================================== Unpack message into a hash
  223: 
  224: sub unpackagemsg {
  225:     my ($message,$notoken)=@_;
  226:     my %content=();
  227:     my $parser=HTML::TokeParser->new(\$message);
  228:     my $token;
  229:     while ($token=$parser->get_token) {
  230:        if ($token->[0] eq 'S') {
  231: 	   my $entry=$token->[1];
  232:            my $value=$parser->get_text('/'.$entry);
  233:            if (($entry eq 'recuser') || ($entry eq 'recdomain')) {
  234:                push(@{$content{$entry}},$value);
  235:            } elsif ($entry eq 'recipient') {
  236:                my $username = $token->[2]{'username'};
  237:                $username = &HTML::Entities::decode($username,'<>&"');
  238:                $content{$entry}{$username} = $value;
  239:            } else {
  240:                $content{$entry}=$value;
  241:            }
  242:        }
  243:     }
  244:     if (!exists($content{'recuser'})) { $content{'recuser'} = []; }
  245:     if ($content{'attachmenturl'}) {
  246:        my ($fname)=($content{'attachmenturl'}=~m|/([^/]+)$|);
  247:        if ($notoken) {
  248: 	   $content{'message'}.='<p>'.&mt('Attachment').': <tt>'.$fname.'</tt>';
  249:        } else {
  250: 	   &Apache::lonnet::allowuploaded('/adm/msg',
  251: 					  $content{'attachmenturl'});
  252: 	   $content{'message'}.='<p>'.&mt('Attachment').
  253: 	       ': <a href="'.$content{'attachmenturl'}.'"><tt>'.
  254: 	       $fname.'</tt></a>';
  255:        }
  256:     }
  257:     return %content;
  258: }
  259: 
  260: # ======================================================= Get info out of msgid
  261: 
  262: sub buildmsgid {
  263:     my ($now,$subject,$uname,$udom,$msgcount,$course_context,$pid) = @_;
  264:     $subject=&Apache::lonnet::escape($subject);
  265:     return(&Apache::lonnet::escape($now.':'.$subject.':'.$uname.':'.
  266:            $udom.':'.$msgcount.':'.$course_context.':'.$pid));
  267: }
  268: 
  269: sub unpackmsgid {
  270:     my ($msgid,$folder,$skipstatus,$status_cache)=@_;
  271:     $msgid=&Apache::lonnet::unescape($msgid);
  272:     my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$fromcid,
  273:                      $processid)=split(/\:/,&Apache::lonnet::unescape($msgid));
  274:     if (!defined($processid)) { $fromcid = ''; }
  275:     my %status=();
  276:     unless ($skipstatus) {
  277: 	if (ref($status_cache)) {
  278: 	    $status{$msgid} = $status_cache->{$msgid};
  279: 	} else {
  280: 	    my $suffix=&foldersuffix($folder);
  281: 	    %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
  282: 	}
  283: 	if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
  284:         unless ($status{$msgid}) { $status{$msgid}='new'; }
  285:     }
  286:     return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid},$fromcid);
  287: }
  288: 
  289: 
  290: sub sendemail {
  291:     my ($to,$subject,$body)=@_;
  292:     $body=
  293:     "*** ".&mt('This is an automatic message generated by the LON-CAPA system.')."\n".
  294:     "*** ".&mt('Please do not reply to this address.')."\n\n".$body;
  295:     my $msg = new Mail::Send;
  296:     $msg->to($to);
  297:     $msg->subject('[LON-CAPA] '.$subject);
  298:     if (my $fh = $msg->open()) {
  299: 	print $fh $body;
  300: 	$fh->close;
  301:     }
  302: }
  303: 
  304: # ==================================================== Send notification emails
  305: 
  306: sub sendnotification {
  307:     my ($to,$touname,$toudom,$subj,$crit,$text)=@_;
  308:     my $sender=$env{'environment.firstname'}.' '.$env{'environment.lastname'};
  309:     unless ($sender=~/\w/) { 
  310: 	$sender=$env{'user.name'}.'@'.$env{'user.domain'};
  311:     }
  312:     my $critical=($crit?' critical':'');
  313:     $text=~s/\&lt\;/\</gs;
  314:     $text=~s/\&gt\;/\>/gs;
  315:     $text=~s/\<\/*[^\>]+\>//gs;
  316:     my $url='http://'.
  317:       $Apache::lonnet::hostname{&Apache::lonnet::homeserver($touname,$toudom)}.
  318:       '/adm/email?username='.$touname.'&domain='.$toudom;
  319:     my $body=(<<ENDMSG);
  320: You received a$critical message from $sender in LON-CAPA. The subject is
  321: 
  322:  $subj
  323: 
  324: === Excerpt ============================================================
  325: $text
  326: ========================================================================
  327: 
  328: Use
  329: 
  330:  $url
  331: 
  332: to access the full message.
  333: ENDMSG
  334:     &sendemail($to,'New'.$critical.' message from '.$sender,$body);
  335: }
  336: # ============================================================= Check for email
  337: 
  338: sub newmail {
  339:     if ((time-$env{'user.mailcheck.time'})>300) {
  340:         my %what=&Apache::lonnet::get('email_status',['recnewemail']);
  341:         &Apache::lonnet::appenv('user.mailcheck.time'=>time);
  342:         if ($what{'recnewemail'}>0) { return 1; }
  343:     }
  344:     return 0;
  345: }
  346: 
  347: # =============================== Automated message to the author of a resource
  348: 
  349: =pod
  350: 
  351: =item * B<author_res_msg($filename, $message)>: Sends message $message to the owner
  352:     of the resource with the URI $filename.
  353: 
  354: =cut
  355: 
  356: sub author_res_msg {
  357:     my ($filename,$message)=@_;
  358:     unless ($message) { return 'empty'; }
  359:     $filename=&Apache::lonnet::declutter($filename);
  360:     my ($domain,$author,@dummy)=split(/\//,$filename);
  361:     my $homeserver=&Apache::lonnet::homeserver($author,$domain);
  362:     if ($homeserver ne 'no_host') {
  363:        my $id=unpack("%32C*",$message);
  364:        my $msgid;
  365:        ($msgid,$message)=&packagemsg($filename,$message);
  366:        return &Apache::lonnet::reply('put:'.$domain.':'.$author.
  367:          ':nohist_res_msgs:'.
  368:           &Apache::lonnet::escape($filename.'_'.$id).'='.
  369:           &Apache::lonnet::escape($message),$homeserver);
  370:     }
  371:     return 'no_host';
  372: }
  373: 
  374: # =========================================== Retrieve author resource messages
  375: 
  376: sub retrieve_author_res_msg {
  377:     my $url=shift;
  378:     $url=&Apache::lonnet::declutter($url);
  379:     my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
  380:     my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$domain,$author);
  381:     my $msgs='';
  382:     foreach (keys %errormsgs) {
  383: 	if ($_=~/^\Q$url\E\_\d+$/) {
  384: 	    my %content=&unpackagemsg($errormsgs{$_});
  385: 	    $msgs.='<p><img src="/adm/lonMisc/bomb.gif" /><b>'.
  386: 		$content{'time'}.'</b>: '.$content{'message'}.
  387: 		'<br /></p>';
  388: 	}
  389:     } 
  390:     return $msgs;     
  391: }
  392: 
  393: 
  394: # =============================== Delete all author messages related to one URL
  395: 
  396: sub del_url_author_res_msg {
  397:     my $url=shift;
  398:     $url=&Apache::lonnet::declutter($url);
  399:     my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
  400:     my @delmsgs=();
  401:     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
  402: 	if ($_=~/^\Q$url\E\_\d+$/) {
  403: 	    push (@delmsgs,$_);
  404: 	}
  405:     }
  406:     return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
  407: }
  408: # =================================== Clear out all author messages in URL path
  409: 
  410: sub clear_author_res_msg {
  411:     my $url=shift;
  412:     $url=&Apache::lonnet::declutter($url);
  413:     my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
  414:     my @delmsgs=();
  415:     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
  416: 	if ($_=~/^\Q$url\E/) {
  417: 	    push (@delmsgs,$_);
  418: 	}
  419:     }
  420:     return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
  421: }
  422: # ================= Return hash with URLs for which there is a resource message
  423: 
  424: sub all_url_author_res_msg {
  425:     my ($author,$domain)=@_;
  426:     my %returnhash=();
  427:     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
  428: 	$_=~/^(.+)\_\d+/;
  429: 	$returnhash{$1}=1;
  430:     }
  431:     return %returnhash;
  432: }
  433: 
  434: # ================================================== Critical message to a user
  435: 
  436: sub user_crit_msg_raw {
  437:     my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage)=@_;
  438: # Check if allowed missing
  439:     my $status='';
  440:     my $msgid='undefined';
  441:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
  442:     my $text=$message;
  443:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
  444:     if ($homeserver ne 'no_host') {
  445:        ($msgid,$message)=&packagemsg($subject,$message);
  446:        if ($sendback) { $message.='<sendback>true</sendback>'; }
  447:        $status=&Apache::lonnet::critical(
  448:            'put:'.$domain.':'.$user.':critical:'.
  449:            &Apache::lonnet::escape($msgid).'='.
  450:            &Apache::lonnet::escape($message),$homeserver);
  451:         if (defined($sentmessage)) {
  452:             $$sentmessage = $message;
  453:         }
  454:     } else {
  455:        $status='no_host';
  456:     }
  457: # Notifications
  458:     my %userenv = &Apache::lonnet::get('environment',['critnotification',
  459:                                                       'permanentemail'],
  460:                                        $domain,$user);
  461:     if ($userenv{'critnotification'}) {
  462:       &sendnotification($userenv{'critnotification'},$user,$domain,$subject,1,
  463: 			$text);
  464:     }
  465:     if ($toperm && $userenv{'permanentemail'}) {
  466:       &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,1,
  467: 			$text);
  468:     }
  469: # Log this
  470:     &Apache::lonnet::logthis(
  471:       'Sending critical email '.$msgid.
  472:       ', log status: '.
  473:       &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
  474:                          $env{'user.home'},
  475:       'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status: '
  476:       .$status));
  477:     return $status;
  478: }
  479: 
  480: # New routine that respects "forward" and calls old routine
  481: 
  482: =pod
  483: 
  484: =item * B<user_crit_msg($user, $domain, $subject, $message, $sendback)>: Sends
  485:     a critical message $message to the $user at $domain. If $sendback is true,
  486:     a reciept will be sent to the current user when $user recieves the message.
  487: 
  488: =cut
  489: 
  490: sub user_crit_msg {
  491:     my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage)=@_;
  492:     my $status='';
  493:     my %userenv = &Apache::lonnet::get('environment',['msgforward'],
  494:                                        $domain,$user);
  495:     my $msgforward=$userenv{'msgforward'};
  496:     if ($msgforward) {
  497:        foreach (split(/\,/,$msgforward)) {
  498: 	 my ($forwuser,$forwdomain)=split(/\:/,$_);
  499:          $status.=
  500: 	   &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,
  501:                 $sendback,$toperm,$sentmessage).' ';
  502:        }
  503:     } else { 
  504: 	$status=&user_crit_msg_raw($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage);
  505:     }
  506:     return $status;
  507: }
  508: 
  509: # =================================================== Critical message received
  510: 
  511: sub user_crit_received {
  512:     my $msgid=shift;
  513:     my %message=&Apache::lonnet::get('critical',[$msgid]);
  514:     my %contents=&unpackagemsg($message{$msgid},1);
  515:     my $status='rec: '.($contents{'sendback'}?
  516:      &user_normal_msg($contents{'sendername'},$contents{'senderdomain'},
  517:                      &mt('Receipt').': '.$env{'user.name'}.' '.&mt('at').' '.$env{'user.domain'}.', '.$contents{'subject'},
  518:                      &mt('User').' '.$env{'user.name'}.' '.&mt('at').' '.$env{'user.domain'}.
  519:                      ' acknowledged receipt of message'."\n".'   "'.
  520:                      $contents{'subject'}.'"'."\n".&mt('dated').' '.
  521:                      $contents{'time'}.".\n"
  522:                      ):'no msg req');
  523:     $status.=' trans: '.
  524:      &Apache::lonnet::put(
  525:      'nohist_email',{$contents{'msgid'} => $message{$msgid}});
  526:     $status.=' del: '.
  527:      &Apache::lonnet::del('critical',[$contents{'msgid'}]);
  528:     &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
  529:                          $env{'user.home'},'Received critical message '.
  530:                          $contents{'msgid'}.
  531:                          ', '.$status);
  532:     return $status;
  533: }
  534: 
  535: # ======================================================== Normal communication
  536: 
  537: sub user_normal_msg_raw {
  538:     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
  539: 	$toperm,$currid,$newid,$sentmessage)=@_;
  540: # Check if allowed missing
  541:     my ($status,$packed_message);
  542:     my $msgid='undefined';
  543:     my $text=$message;
  544:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
  545:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
  546:     if ($homeserver ne 'no_host') {
  547:        ($msgid,$packed_message)=
  548: 	                 &packagemsg($subject,$message,$citation,$baseurl,
  549:                                      $attachmenturl,$user,$domain,$currid);
  550:        (undef, my $packed_message_no_citation)=
  551:                          &packagemsg($subject,$message,undef     ,$baseurl,
  552:                                      $attachmenturl,$user,$domain,$currid);
  553: # Store in user folder
  554:        $status=&Apache::lonnet::critical(
  555:            'put:'.$domain.':'.$user.':nohist_email:'.
  556:            &Apache::lonnet::escape($msgid).'='.
  557:            &Apache::lonnet::escape($packed_message),$homeserver);
  558: # Save new message received time
  559:        &Apache::lonnet::put
  560:                          ('email_status',{'recnewemail'=>time},$domain,$user);
  561: # Into sent-mail folder unless a broadcast message or critical message
  562:        unless (($env{'request.course.id'}) && 
  563:                (($env{'form.sendmode'} eq 'group')  || 
  564:                (($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
  565:                (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
  566: 		|| &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
  567: 					    '/'.$env{'request.course.sec'})))) {
  568:            $status .= &store_sent_mail($msgid,$packed_message_no_citation);
  569:        }
  570:     } else {
  571:        $status='no_host';
  572:     }
  573:     if (defined($newid)) {
  574:         $$newid = $msgid;
  575:     }
  576:     if (defined($sentmessage)) {
  577:         $$sentmessage = $packed_message;
  578:     }
  579: 
  580: # Notifications
  581:     my %userenv = &Apache::lonnet::get('environment',['notification',
  582:                                                       'permanentemail'],
  583:                                        $domain,$user);
  584:     if ($userenv{'notification'}) {
  585: 	&sendnotification($userenv{'notification'},$user,$domain,$subject,0,
  586: 			  $text);
  587:     }
  588:     if ($toperm && $userenv{'permanentemail'}) {
  589:       &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,0,
  590: 			$text);
  591:     }
  592:     &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
  593:                          $env{'user.home'},
  594:       'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
  595:     return $status;
  596: }
  597: 
  598: # New routine that respects "forward" and calls old routine
  599: 
  600: =pod
  601: 
  602: =item * B<user_normal_msg($user, $domain, $subject, $message,
  603:     $citation, $baseurl, $attachmenturl)>: Sends a message to the
  604:     $user at $domain, with subject $subject and message $message.
  605: 
  606: =cut
  607: 
  608: sub user_normal_msg {
  609:     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
  610: 	$toperm,$sentmessage)=@_;
  611:     my $status='';
  612:     my %userenv = &Apache::lonnet::get('environment',['msgforward'],
  613:                                        $domain,$user);
  614:     my $msgforward=$userenv{'msgforward'};
  615:     if ($msgforward) {
  616:         foreach (split(/\,/,$msgforward)) {
  617: 	    my ($forwuser,$forwdomain)=split(/\:/,$_);
  618: 	    $status.=
  619: 	        &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
  620: 				     $citation,$baseurl,$attachmenturl,$toperm,
  621: 				     undef,undef,$sentmessage).' ';
  622:         }
  623:     } else { 
  624: 	$status=&user_normal_msg_raw($user,$domain,$subject,$message,
  625: 				     $citation,$baseurl,$attachmenturl,$toperm,
  626: 				     undef,undef,$sentmessage);
  627:     }
  628:     return $status;
  629: }
  630: 
  631: sub store_sent_mail {
  632:     my ($msgid,$message) = @_;
  633:     my $status =' '.&Apache::lonnet::critical(
  634:                'put:'.$env{'user.domain'}.':'.$env{'user.name'}.
  635:                                           ':nohist_email_sent:'.
  636:                &Apache::lonnet::escape($msgid).'='.
  637:                &Apache::lonnet::escape($message),$env{'user.home'});
  638:     return $status;
  639: }
  640: 
  641: # ============================================================ List all folders
  642: 
  643: sub folderlist {
  644:     my $folder=shift;
  645:     my @allfolders=&Apache::lonnet::getkeys('email_folders');
  646:     if ($allfolders[0]=~/^error:/) { @allfolders=(); }
  647:     return '<form method="post" action="/adm/email">'.
  648: 	&mt('Folder').': '.
  649: 	&Apache::loncommon::select_form($folder,'folder',
  650: 			     ('' => &mt('INBOX'),'trash' => &mt('TRASH'),
  651: 			      'new' => &mt('New Messages Only'),
  652:                               'critical' => &mt('Critical'),
  653: 			      'sent' => &mt('Sent Messages'),
  654: 			      map { $_ => $_ } @allfolders)).
  655: 			      ' '.&mt('Show').
  656: 			      '<select name="interdis">'.
  657: 			      join("\n",map { '<option value="'.$_.'"'.
  658: 	 ($_==$interdis?' selected="selected"':'').'>'.$_.'</option>' }
  659: 				   (10,20,50,100,200)).'</select>'.	
  660:    '<input type="submit" value="'.&mt('View Folder').'" /><br />'.
  661:     '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />'.
  662: 			      ($folder=~/^(new|critical)/?'</form>':'');
  663: }
  664: 
  665: sub scrollbuttons {
  666:     my ($start,$maxdis,$first,$finish,$total)=@_;
  667:     unless ($total>0) { return ''; }
  668:     $start++; $maxdis++;$first++;$finish++;
  669:     return
  670:    &mt('Page').': '. 
  671:    '<input type="submit" name="firstview" value="'.&mt('First').'" />'.
  672:    '<input type="submit" name="prevview" value="'.&mt('Previous').'" />'.
  673:    '<input type="text" size="5" name="startdis" value="'.$start.'" onChange="this.form.submit()" /> of '.$maxdis.
  674:    '<input type="submit" name="nextview" value="'.&mt('Next').'" />'.
  675:    '<input type="submit" name="lastview" value="'.&mt('Last').'" /><br />'.
  676:    &mt('Showing messages [_1] through [_2] of [_3]',$first,$finish,$total).'</form>';
  677: }
  678: 
  679: # =============================================================== Folder suffix
  680: 
  681: sub foldersuffix {
  682:     my $folder=shift;
  683:     unless ($folder) { return ''; }
  684:     return '_'.&Apache::lonnet::escape($folder);
  685: }
  686: 
  687: # =============================================================== Status Change
  688: 
  689: sub statuschange {
  690:     my ($msgid,$newstatus,$folder)=@_;
  691:     my $suffix=&foldersuffix($folder);
  692:     my %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
  693:     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
  694:     unless ($status{$msgid}) { $status{$msgid}='new'; }
  695:     unless (($status{$msgid} eq 'replied') || 
  696:             ($status{$msgid} eq 'forwarded')) {
  697: 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
  698:     }
  699:     if (($newstatus eq 'deleted') || ($newstatus eq 'new')) {
  700: 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
  701:     }
  702:     if ($newstatus eq 'deleted') {
  703:        &movemsg(&Apache::lonnet::unescape($msgid),$folder,'trash');
  704:    }
  705: }
  706: 
  707: # ============================================================= Make new folder
  708: 
  709: sub makefolder {
  710:     my ($newfolder)=@_;
  711:     if (($newfolder eq 'sent')
  712:      || ($newfolder eq 'critical')
  713:      || ($newfolder eq 'trash')
  714:      || ($newfolder eq 'new')) { return; }
  715:     &Apache::lonnet::put('email_folders',{$newfolder => time});
  716: }
  717: 
  718: # ======================================================== Move between folders
  719: 
  720: sub movemsg {
  721:     my ($msgid,$srcfolder,$trgfolder)=@_;
  722:     if ($srcfolder eq 'new') { $srcfolder=''; }
  723:     my $srcsuffix=&foldersuffix($srcfolder);
  724:     my $trgsuffix=&foldersuffix($trgfolder);
  725: 
  726: # Copy message
  727:     my %message=&Apache::lonnet::get('nohist_email'.$srcsuffix,[$msgid]);
  728:     &Apache::lonnet::put('nohist_email'.$trgsuffix,{$msgid => $message{$msgid}});
  729: 
  730: # Copy status
  731:     unless ($trgfolder eq 'trash') {
  732: 	my %status=&Apache::lonnet::get('email_status'.$srcsuffix,[$msgid]);
  733: 	&Apache::lonnet::put('email_status'.$trgsuffix,{$msgid => $status{$msgid}});
  734:     }
  735: # Delete orginals
  736:     &Apache::lonnet::del('nohist_email'.$srcsuffix,[$msgid]);
  737:     &Apache::lonnet::del('email_status'.$srcsuffix,[$msgid]);
  738: }
  739: 
  740: # ======================================================= Display a course list
  741: 
  742: sub discourse {
  743:     my $r=shift;
  744:     my $classlist = &Apache::loncoursedata::get_classlist();
  745:     my $now=time;
  746:     my %lt=&Apache::lonlocal::texthash('cfa' => 'Check All',
  747:             'cfs' => 'Check Section/Group',
  748:             'cfn' => 'Uncheck All');
  749:     $r->print(<<ENDDISHEADER);
  750: <input type="hidden" name="sendmode" value="group" />
  751: <script>
  752:     function checkall() {
  753: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  754:             if 
  755:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  756: 	      document.forms.compemail.elements[i].checked=true;
  757:             }
  758:         }
  759:     }
  760: 
  761:     function checksec() {
  762: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  763:             if 
  764:           (document.forms.compemail.elements[i].name.indexOf
  765:            ('send_to_&&&'+document.forms.compemail.chksec.value)==0) {
  766: 	      document.forms.compemail.elements[i].checked=true;
  767:             }
  768:         }
  769:     }
  770: 
  771:     function uncheckall() {
  772: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  773:             if 
  774:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  775: 	      document.forms.compemail.elements[i].checked=false;
  776:             }
  777:         }
  778:     }
  779: </script>
  780: <input type="button" onClick="checkall()" value="$lt{'cfa'}" />&nbsp;
  781: <input type="button" onClick="checksec()" value="$lt{'cfs'}" />
  782: <input type="text" size="5" name="chksec" />&nbsp;
  783: <input type="button" onClick="uncheckall()" value="$lt{'cfn'}" />
  784: <p>
  785: ENDDISHEADER
  786:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles();
  787:     $r->print('<table>');
  788:     foreach my $role (sort keys %coursepersonnel) {
  789:         foreach (split(/\,/,$coursepersonnel{$role})) {
  790:             my ($puname,$pudom)=split(/\:/,$_);
  791:             $r->print('<tr><td><label>'.
  792:                       '<input type="checkbox" name="send_to_&&&&&&_'.
  793:                       $puname.':'.$pudom.'" /> '.
  794:                       &Apache::loncommon::plainname($puname,$pudom).
  795:                       '</label></td>'.
  796:                       '<td>('.$_.'),</td><td><i>'.$role.'</i></td></tr>');
  797:         }
  798:     }
  799:     $r->print('</table><table>');
  800:     my $sort = sub {
  801: 	my $aname=lc($classlist->{$a}[&Apache::loncoursedata::CL_FULLNAME()]);
  802: 	if (!$aname) { $aname=$a; }
  803: 	my $bname=lc($classlist->{$b}[&Apache::loncoursedata::CL_FULLNAME()]);
  804: 	if (!$bname) { $bname=$b; }
  805: 	return $aname cmp $bname;
  806:     };
  807:     foreach my $student (sort $sort (keys(%{$classlist}))) {
  808: 	my $info=$classlist->{$student};
  809:         my ($sname,$sdom,$status,$fullname,$section) =
  810:             (@{$info}[&Apache::loncoursedata::CL_SNAME(),
  811:                       &Apache::loncoursedata::CL_SDOM(),
  812:                       &Apache::loncoursedata::CL_STATUS(),
  813:                       &Apache::loncoursedata::CL_FULLNAME(),
  814:                       &Apache::loncoursedata::CL_SECTION()]);
  815:         next if ($status ne 'Active');
  816: 	next if ($env{'request.course.sec'} &&
  817: 		 $section ne $env{'request.course.sec'});
  818:         my $key = 'send_to_&&&'.$section.'&&&_'.$student;
  819:         if (! defined($fullname) || $fullname eq '') { $fullname = $sname; }
  820:         $r->print('<tr><td><label>'.
  821:                   qq{<input type="checkbox" name="$key" />}.('&nbsp;'x2).
  822:                   $fullname.'</label></td><td>'.$sname.'@'.$sdom.'</td><td>'.$section.
  823:                   '</td></tr>');
  824:     }
  825:     $r->print('</table>');
  826: }
  827: 
  828: # ==================================================== Display Critical Message
  829: 
  830: sub discrit {
  831:     my $r=shift;
  832:     my $header = '<h1><font color=red>'.&mt('Critical Messages').'</font></h1>'.
  833:         '<form action="/adm/email" method="POST">'.
  834:         '<input type="hidden" name="confirm" value="true" />';
  835:     my %what=&Apache::lonnet::dump('critical');
  836:     my $result = '';
  837:     foreach (sort keys %what) {
  838:         my %content=&unpackagemsg($what{$_});
  839:         next if ($content{'senderdomain'} eq '');
  840:         $result.='<hr />'.&mt('From').': <b>'.
  841: &Apache::loncommon::aboutmewrapper(
  842:  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
  843: $content{'sendername'}.'@'.
  844:             $content{'senderdomain'}.') '.$content{'time'}.
  845:             '<br />'.&mt('Subject').': '.$content{'subject'}.
  846:             '<br /><pre>'.
  847:               &Apache::lontexconvert::msgtexconverted($content{'message'}).
  848:             '</pre><small>'.
  849: &mt('You have to confirm that you received this message. After confirmation, this message will be moved to your regular inbox').
  850:             '</small><br />'.
  851:             '<input type="submit" name="rec_'.$_.'" value="'.&mt('Confirm Receipt').'" />'.
  852:             '<input type="submit" name="reprec_'.$_.'" '.
  853:                   'value="'.&mt('Confirm Receipt and Reply').'" />';
  854:     }
  855:     # Check to see if there were any messages.
  856:     if ($result eq '') {
  857:         $result = "<h2>".&mt('You have no critical messages.')."</h2>".
  858: 	    '<a href="/adm/roles">'.&mt('Select a course').'</a><br />'.
  859:             '<a href="/adm/email">'.&mt('Communicate').'</a>';
  860:     } else {
  861:         $r->print($header);
  862:     }
  863:     $r->print($result);
  864:     $r->print('<input type="hidden" name="displayedcrit" value="true" /></form>');
  865: }
  866: 
  867: sub sortedmessages {
  868:     my ($blocked,$startblock,$endblock,$numblocked,$folder) = @_;
  869:     my $suffix=&foldersuffix($folder);
  870:     my @messages = &Apache::lonnet::getkeys('nohist_email'.$suffix);
  871:     #unpack the varibles and repack into temp for sorting
  872:     my @temp;
  873:     my %descriptions;
  874:     my %status_cache = 
  875: 	&Apache::lonnet::get('email_status'.&foldersuffix($folder),\@messages);
  876:     foreach (@messages) {
  877: 	my $msgid=&Apache::lonnet::escape($_);
  878: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid)=
  879: 	    &Apache::lonmsg::unpackmsgid($msgid,$folder,undef,
  880: 					 \%status_cache);
  881:         my $description = &get_course_desc($fromcid,\%descriptions);
  882: 	my @temp1 = ($sendtime,$shortsubj,$fromname,$fromdomain,$status,
  883: 		     $msgid,$description);
  884:         # Check whether message was sent during blocking period.
  885:         if ($sendtime >= $startblock && ($sendtime <= $endblock && $endblock > 0) ) {
  886:             my $escid = &Apache::lonnet::unescape($msgid);
  887:             $$blocked{$escid} = 'ON';
  888:             $$numblocked ++;
  889:         } else { 
  890:             push @temp ,\@temp1;
  891:         }
  892:     }
  893:     #default sort
  894:     @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  895:     if ($env{'form.sortedby'} eq "date"){
  896:         @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  897:     }
  898:     if ($env{'form.sortedby'} eq "revdate"){
  899:     	@temp = sort  {$b->[0] <=> $a->[0]} @temp; 
  900:     }
  901:     if ($env{'form.sortedby'} eq "user"){
  902: 	@temp = sort  {lc($a->[2]) cmp lc($b->[2])} @temp;
  903:     }
  904:     if ($env{'form.sortedby'} eq "revuser"){
  905: 	@temp = sort  {lc($b->[2]) cmp lc($a->[2])} @temp;
  906:     }
  907:     if ($env{'form.sortedby'} eq "domain"){
  908:         @temp = sort  {$a->[3] cmp $b->[3]} @temp;
  909:     }
  910:     if ($env{'form.sortedby'} eq "revdomain"){
  911:         @temp = sort  {$b->[3] cmp $a->[3]} @temp;
  912:     }
  913:     if ($env{'form.sortedby'} eq "subject"){
  914:         @temp = sort  {lc($a->[1]) cmp lc($b->[1])} @temp;
  915:     }
  916:     if ($env{'form.sortedby'} eq "revsubject"){
  917:         @temp = sort  {lc($b->[1]) cmp lc($a->[1])} @temp;
  918:     }
  919:     if ($env{'form.sortedby'} eq "course"){
  920:         @temp = sort  {lc($a->[6]) cmp lc($b->[6])} @temp;
  921:     }
  922:     if ($env{'form.sortedby'} eq "revcourse"){
  923:         @temp = sort  {lc($b->[6]) cmp lc($a->[6])} @temp;
  924:     }
  925:     if ($env{'form.sortedby'} eq "status"){
  926:         @temp = sort  {$a->[4] cmp $b->[4]} @temp;
  927:     }
  928:     if ($env{'form.sortedby'} eq "revstatus"){
  929:         @temp = sort  {$b->[4] cmp $a->[4]} @temp;
  930:     }
  931:     return @temp;
  932: }
  933: 
  934: sub get_course_desc {
  935:     my ($fromcid,$descriptions) = @_;
  936:     my $description;
  937:     if (!$fromcid) {
  938:         return $description;
  939:     } else {
  940:         if (defined($$descriptions{$fromcid})) {
  941:             $description = $$descriptions{$fromcid};
  942:         } else {
  943:             if (defined($env{'course.'.$fromcid.'.description'})) {
  944:                 $description = $env{'course.'.$fromcid.'.description'};
  945:             } else {
  946:                 my %courseinfo=&Apache::lonnet::coursedescription($fromcid);                $description = $courseinfo{'description'};
  947:                 $description = $courseinfo{'description'};
  948:             }
  949:             $$descriptions{$fromcid} = $description;
  950:         }
  951:         return $description;
  952:     }
  953: }
  954: 
  955: # ======================================================== Display new messages
  956: 
  957: 
  958: sub disnew {
  959:     my $r=shift;
  960:     my %lt=&Apache::lonlocal::texthash(
  961: 				       'nm' => 'New Messages',
  962: 				       'su' => 'Subject',
  963:                                        'co' => 'Course',
  964: 				       'da' => 'Date',
  965: 				       'us' => 'Username',
  966: 				       'op' => 'Open',
  967: 				       'do' => 'Domain'
  968: 				       );
  969:     my @msgids = sort(&Apache::lonnet::getkeys('nohist_email'));
  970:     my @newmsgs;
  971:     my %setters = ();
  972:     my $startblock = 0;
  973:     my $endblock = 0;
  974:     my %blocked = ();
  975:     my $numblocked = 0;
  976:     # Check for blocking of display because of scheduled online exams.
  977:     &blockcheck(\%setters,\$startblock,\$endblock);
  978:     my %status_cache = 
  979: 	&Apache::lonnet::get('email_status',\@msgids);
  980:     my %descriptions;
  981:     foreach (@msgids) {
  982: 	my $msgid=&Apache::lonnet::escape($_);
  983:         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
  984: 	    &Apache::lonmsg::unpackmsgid($msgid,undef,undef,\%status_cache);
  985:         if (defined($sendtime) && $sendtime!~/error/) {
  986:             my $description = &get_course_desc($fromcid,\%descriptions);
  987:             my $numsendtime = $sendtime;
  988:             $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
  989:             if ($status eq 'new') {
  990:                 if ($numsendtime >= $startblock && ($numsendtime <= $endblock && $endblock > 0) ) {
  991:                     $blocked{$_} = 'ON';
  992:                     $numblocked ++;
  993:                 } else {
  994:                     push @newmsgs, { 
  995:                         msgid    => $msgid,
  996:                         sendtime => $sendtime,
  997:                         shortsub => &Apache::lonnet::unescape($shortsubj),
  998:                         from     => $fromname,
  999:                         fromdom  => $fromdom,
 1000:                         course   => $description 
 1001:                         }
 1002:                 }
 1003:             }
 1004:         }
 1005:     }
 1006:     if ($#newmsgs >= 0) {
 1007:         $r->print(<<TABLEHEAD);
 1008: <h2>$lt{'nm'}</h2>
 1009: <table border=2><tr><th>&nbsp</th>
 1010: <th>$lt{'da'}</th><th>$lt{'us'}</th><th>$lt{'do'}</th><th>$lt{'su'}</th><th>$lt{'co'}</th></tr>
 1011: TABLEHEAD
 1012:         foreach my $msg (@newmsgs) {
 1013:             $r->print(<<"ENDLINK");
 1014: <tr class="new" bgcolor="#FFBB77" onMouseOver="javascript:style.backgroundColor='#DD9955'" 
 1015: onMouseOut="javascript:style.backgroundColor='#FFBB77'">
 1016: <td><a href="/adm/email?dismode=new&display=$msg->{'msgid'}">$lt{'op'}</a></td>
 1017: ENDLINK
 1018:             foreach ('sendtime','from','fromdom','shortsub','course') {
 1019:                 $r->print("<td>$msg->{$_}</td>");
 1020:             }
 1021:             $r->print("</td></tr>");
 1022:         }
 1023:         $r->print('</table>'.&Apache::loncommon::endbodytag().'</html>');
 1024:     } elsif ($numblocked == 0) {
 1025:         $r->print("<h3>".&mt('You have no unread messages')."</h3>");
 1026:     }
 1027:     if ($numblocked > 0) {
 1028:         my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
 1029:         my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
 1030:         if ($numblocked == 1) {
 1031:             $r->print("<h3>".&mt('You have').' '.$numblocked.' '.&mt('blocked unread message').".</h3>");
 1032:             $r->print(&mt('This message is not viewable because').' ');
 1033:         } else {
 1034:             $r->print("<h3>".&mt('You have').' '.$numblocked.' '.&mt('blocked unread messages').".</h3>");
 1035:             $r->print(&mt('These').' '.$numblocked.' '.&mt('messages are not viewable because '));
 1036:         }
 1037:         $r->print(
 1038: &mt('display of LON-CAPA messages sent to you by other students between').' '.$beginblock.' '.&mt('and').' '.$finishblock.' '.&mt('is currently being blocked because of online exams').'.');
 1039:         &build_block_table($r,$startblock,$endblock,\%setters);
 1040:     }
 1041: }
 1042: 
 1043: 
 1044: # ======================================================== Display all messages
 1045: 
 1046: sub disall {
 1047:     my ($r,$folder)=@_;
 1048:     $r->print(&folderlist($folder));
 1049:     if ($folder eq 'new') {
 1050: 	&disnew($r);
 1051:     } elsif ($folder eq 'critical') {
 1052: 	&discrit($r);
 1053:     } else {
 1054: 	&disfolder($r,$folder);
 1055:     }
 1056: }
 1057: 
 1058: # ============================================================ Display a folder
 1059: 
 1060: sub disfolder {
 1061:     my ($r,$folder)=@_;
 1062:     my %blocked = ();
 1063:     my %setters = ();
 1064:     my $startblock;
 1065:     my $endblock;
 1066:     my $numblocked = 0;
 1067:     &blockcheck(\%setters,\$startblock,\$endblock);
 1068:     $r->print(<<ENDDISHEADER);
 1069: <script>
 1070:     function checkall() {
 1071: 	for (i=0; i<document.forms.disall.elements.length; i++) {
 1072:             if 
 1073:           (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
 1074: 	      document.forms.disall.elements[i].checked=true;
 1075:             }
 1076:         }
 1077:     }
 1078: 
 1079:     function uncheckall() {
 1080: 	for (i=0; i<document.forms.disall.elements.length; i++) {
 1081:             if 
 1082:           (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
 1083: 	      document.forms.disall.elements[i].checked=false;
 1084:             }
 1085:         }
 1086:     }
 1087: </script>
 1088: ENDDISHEADER
 1089:     my $fsqs='&folder='.$folder;
 1090:     my @temp=sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder);
 1091:     my $totalnumber=$#temp+1;
 1092:     unless ($totalnumber>0) {
 1093: 	$r->print('<h2>'.&mt('Empty Folder').'</h2>');
 1094: 	return;
 1095:     }
 1096:     unless ($interdis) {
 1097: 	$interdis=20;
 1098:     }
 1099:     my $number=int($totalnumber/$interdis);
 1100:     if (($startdis<0) || ($startdis>$number)) { $startdis=$number; }
 1101:     my $firstdis=$interdis*$startdis;
 1102:     if ($firstdis>$#temp) { $firstdis=$#temp-$interdis+1; }
 1103:     my $lastdis=$firstdis+$interdis-1;
 1104:     if ($lastdis>$#temp) { $lastdis=$#temp; }
 1105:     $r->print(&scrollbuttons($startdis,$number,$firstdis,$lastdis,$totalnumber));
 1106:     $r->print('<form method="post" name="disall" action="/adm/email">'.
 1107: 	      '<table border=2><tr><th colspan="3">&nbsp</th><th>');
 1108:     if ($env{'form.sortedby'} eq "revdate") {
 1109: 	$r->print('<a href = "?sortedby=date'.$fsqs.'">'.&mt('Date').'</a></th>');
 1110:     } else {
 1111: 	$r->print('<a href = "?sortedby=revdate'.$fsqs.'">'.&mt('Date').'</a></th>');
 1112:     }
 1113:     $r->print('<th>');
 1114:     if ($env{'form.sortedby'} eq "revuser") {
 1115: 	$r->print('<a href = "?sortedby=user'.$fsqs.'">'.&mt('Username').'</a>');
 1116:     } else {
 1117: 	$r->print('<a href = "?sortedby=revuser'.$fsqs.'">'.&mt('Username').'</a>');
 1118:     }
 1119:     $r->print('</th><th>');
 1120:     if ($env{'form.sortedby'} eq "revdomain") {
 1121: 	$r->print('<a href = "?sortedby=domain'.$fsqs.'">'.&mt('Domain').'</a>');
 1122:     } else {
 1123: 	$r->print('<a href = "?sortedby=revdomain'.$fsqs.'">'.&mt('Domain').'</a>');
 1124:     }
 1125:     $r->print('</th><th>');
 1126:     if ($env{'form.sortedby'} eq "revsubject") {
 1127: 	$r->print('<a href = "?sortedby=subject'.$fsqs.'">'.&mt('Subject').'</a>');
 1128:     } else {
 1129:     	$r->print('<a href = "?sortedby=revsubject'.$fsqs.'">'.&mt('Subject').'</a>');
 1130:     }
 1131:     $r->print('</th><th>');
 1132:     if ($env{'form.sortedby'} eq "revcourse") {
 1133:         $r->print('<a href = "?sortedby=course'.$fsqs.'">'.&mt('Course').'</a>');
 1134:     } else {
 1135:         $r->print('<a href = "?sortedby=revcourse'.$fsqs.'">'.&mt('Course').'</a>');
 1136:     }
 1137:     $r->print('</th><th>');
 1138:     if ($env{'form.sortedby'} eq "revstatus") {
 1139: 	$r->print('<a href = "?sortedby=status'.$fsqs.'">'.&mt('Status').'</a></th>');
 1140:     } else {
 1141:      	$r->print('<a href = "?sortedby=revstatus'.$fsqs.'">'.&mt('Status').'</a></th>');
 1142:     }
 1143:     $r->print("</tr>\n");
 1144:     for (my $n=$firstdis;$n<=$lastdis;$n++) {
 1145: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$origID,$description)= @{$temp[$n]};
 1146: 	if (($status ne 'deleted') && defined($sendtime) && $sendtime!~/error/) {
 1147: 	    if ($status eq 'new') {
 1148: 		$r->print('<tr bgcolor="#FFBB77" onMouseOver="javascript:style.backgroundColor=\'#DD9955\'"  onMouseOut="javascript:style.backgroundColor=\'#FFBB77\'">');
 1149: 	    } elsif ($status eq 'read') {
 1150: 		$r->print('<tr bgcolor="#BBBB77" onMouseOver="javascript:style.backgroundColor=\'#999944\'"  onMouseOut="javascript:style.backgroundColor=\'#BBBB77\'">');
 1151: 	    } elsif ($status eq 'replied') {
 1152: 		$r->print('<tr bgcolor="#AAAA88" onMouseOver="javascript:style.backgroundColor=\'#888855\'"  onMouseOut="javascript:style.backgroundColor=\'#AAAA88\'">'); 
 1153: 	    } else {
 1154: 		$r->print('<tr bgcolor="#99BBBB" onMouseOver="javascript:style.backgroundColor=\'#669999\'"  onMouseOut="javascript:style.backgroundColor=\'#99BBBB\'">');
 1155: 	    }
 1156: 	    $r->print('<td><input type="checkbox" name="delmark_'.$origID.'" /></td><td><a href="/adm/email?display='.$origID.$sqs. 
 1157: 		      '">'.&mt('Open').'</a></td><td>'.
 1158: 		      ($folder ne 'trash'?'<a href="/adm/email?markdel='.$origID.$sqs.
 1159: 		      '">'.&mt('Delete'):'&nbsp').'</a></td>'.
 1160: 		      '<td>'.&Apache::lonlocal::locallocaltime($sendtime).'</td><td>'.
 1161: 		      $fromname.'</td><td>'.$fromdomain.'</td><td>'.
 1162: 		      &Apache::lonnet::unescape($shortsubj).'</td><td>'.
 1163:                       $description.'</td><td>'.$status.'</td></tr>'."\n");
 1164: 	} elsif ($status eq 'deleted') {
 1165: # purge
 1166: 	    &movemsg(&Apache::lonnet::unescape($origID),$folder,'trash');
 1167: 	}
 1168:     }   
 1169:     $r->print("</table>\n<p>".
 1170:   '<a href="javascript:checkall()">'.&mt('Check All').'</a>&nbsp;'.
 1171:   '<a href="javascript:uncheckall()">'.&mt('Uncheck All').'</a></p>'.
 1172:   '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />');
 1173:     if ($folder ne 'trash') {
 1174: 	$r->print(
 1175: 	      '<p><input type="submit" name="markeddel" value="'.&mt('Delete Checked').'" /></p>');
 1176:     }
 1177:     $r->print('<p><input type="submit" name="markedmove" value="'.&mt('Move Checked to Folder').'" />');
 1178:     my @allfolders=&Apache::lonnet::getkeys('email_folders');
 1179:     if ($allfolders[0]=~/^error:/) { @allfolders=(); }
 1180:     $r->print(
 1181: 	&Apache::loncommon::select_form('','movetofolder',
 1182: 			     ( map { $_ => $_ } @allfolders))
 1183: 	      );
 1184:     my $postedstartdis=$startdis+1;
 1185:     $r->print('<input type="hidden" name="folder" value="'.$folder.'" /><input type="hidden" name="startdis" value="'.$postedstartdis.'" /><input type="hidden" name="interdis" value="'.$env{'form.interdis'}.'" /></form>');
 1186:     if ($numblocked > 0) {
 1187:         my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
 1188:         my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
 1189:         $r->print('<br /><br />'.
 1190:                   $numblocked.' '.&mt('message(s) is/are not viewable because display of LON-CAPA messages sent to you by other students between').' '.$beginblock.' '.&mt('and').' '.$finishblock.' '.&mt('is currently being blocked because of online exams.'));
 1191:         &build_block_table($r,$startblock,$endblock,\%setters);
 1192:     }
 1193: }
 1194: 
 1195: # ============================================================== Compose output
 1196: 
 1197: sub compout {
 1198:     my ($r,$forwarding,$replying,$broadcast,$replycrit,$folder,$dismode)=@_;
 1199:     my $suffix=&foldersuffix($folder);
 1200: 
 1201:     if ($broadcast eq 'individual') {
 1202: 	&printheader($r,'/adm/email?compose=individual',
 1203: 	     'Send a Message');
 1204:     } elsif ($broadcast) {
 1205: 	&printheader($r,'/adm/email?compose=group',
 1206: 	     'Broadcast Message');
 1207:     } elsif ($forwarding) {
 1208: 	&Apache::lonhtmlcommon::add_breadcrumb
 1209:         ({href=>"/adm/email?display=".&Apache::lonnet::escape($forwarding),
 1210:           text=>"Display Message"});
 1211: 	&printheader($r,'/adm/email?forward='.&Apache::lonnet::escape($forwarding),
 1212: 	     'Forwarding a Message');
 1213:     } elsif ($replying) {
 1214: 	&Apache::lonhtmlcommon::add_breadcrumb
 1215:         ({href=>"/adm/email?display=".&Apache::lonnet::escape($replying),
 1216:           text=>"Display Message"});
 1217: 	&printheader($r,'/adm/email?replyto='.&Apache::lonnet::escape($replying),
 1218: 	     'Replying to a Message');
 1219:     } elsif ($replycrit) {
 1220: 	$r->print('<h3>'.&mt('Replying to a Critical Message').'</h3>');
 1221: 	$replying=$replycrit;
 1222:     } else {
 1223: 	&printheader($r,'/adm/email?compose=upload',
 1224: 	     'Distribute from Uploaded File');
 1225:     }
 1226: 
 1227:     my $dispcrit='';
 1228:     my $dissub='';
 1229:     my $dismsg='';
 1230:     my $disbase='';
 1231:     my $func=&mt('Send New');
 1232:     my %lt=&Apache::lonlocal::texthash('us' => 'Username',
 1233: 				       'do' => 'Domain',
 1234: 				       'ad' => 'Additional Recipients',
 1235: 				       'sb' => 'Subject',
 1236: 				       'ca' => 'Cancel',
 1237: 				       'ma' => 'Mail');
 1238: 
 1239:     if (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1240: 	|| &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1241: 				    '/'.$env{'request.course.sec'})) {
 1242: 	 my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
 1243:          $dispcrit=
 1244:  '<p><label><input type="checkbox" name="critmsg" /> '.&mt('Send as critical message').'</label> ' . $crithelp . 
 1245:  '</p><p>'.
 1246:  '<label><input type="checkbox" name="sendbck" /> '.&mt('Send as critical message').'  ' .
 1247:  &mt('and return receipt') . '</label>' . $crithelp . 
 1248:  '</p><p><label><input type="checkbox" name="permanent" /> '.
 1249: &mt('Send copy to permanent email address (if known)').'</label></p>'.
 1250: '<!-- <p><label><input type="checkbox" name="rsspost" /> '.
 1251: 		  &mt('Include in course RSS newsfeed').'</label></p>-->';      }
 1252:     my %message;
 1253:     my %content;
 1254:     my $defdom=$env{'user.domain'};
 1255:     if ($forwarding) {
 1256: 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$forwarding]);
 1257: 	%content=&unpackagemsg($message{$forwarding},$folder);
 1258: 	$dispcrit.='<input type="hidden" name="forwid" value="'.
 1259: 	    $forwarding.'" />';
 1260: 	$func=&mt('Forward');
 1261: 	
 1262: 	$dissub=&mt('Forwarding').': '.$content{'subject'};
 1263: 	$dismsg=&mt('Forwarded message from').' '.
 1264: 	    $content{'sendername'}.' '.&mt('at').' '.$content{'senderdomain'};
 1265: 	if ($content{'baseurl'}) {
 1266: 	    $disbase='<input type="hidden" name="baseurl" value="'.&Apache::lonnet::escape($content{'baseurl'}).'" />';
 1267: 	}
 1268:     }
 1269:     if ($replying) {
 1270: 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$replying]);
 1271: 	%content=&unpackagemsg($message{$replying},$folder);
 1272: 	$dispcrit.='<input type="hidden" name="replyid" value="'.
 1273: 	    $replying.'" />';
 1274: 	$func=&mt('Send Reply to');
 1275: 	
 1276: 	$dissub=&mt('Reply').': '.$content{'subject'};       
 1277: 	$dismsg='> '.$content{'message'};
 1278: 	$dismsg=~s/\r/\n/g;
 1279: 	$dismsg=~s/\f/\n/g;
 1280: 	$dismsg=~s/\n+/\n\> /g;
 1281: 	if ($content{'baseurl'}) {
 1282: 	    $disbase='<input type="hidden" name="baseurl" value="'.&Apache::lonnet::escape($content{'baseurl'}).'" />';
 1283: 	    if ($env{'user.adv'}) {
 1284: 		$disbase.='<label><input type="checkbox" name="storebasecomment" />'.&mt('Store message for re-use').
 1285: 		    '</label> <a href="/adm/email?showcommentbaseurl='.
 1286: 		    &Apache::lonnet::escape($content{'baseurl'}).'" target="comments">'.
 1287: 		    &mt('Show re-usable messages').'</a><br />';
 1288: 	    }
 1289: 	}
 1290:     }
 1291:     my $citation=&displayresource(%content);
 1292:     if ($env{'form.recdom'}) { $defdom=$env{'form.recdom'}; }
 1293:       $r->print(
 1294:                 '<form action="/adm/email"  name="compemail" method="post"'.
 1295:                 ' enctype="multipart/form-data">'."\n".
 1296:                 '<input type="hidden" name="sendmail" value="on" />'."\n".
 1297:                 '<table>');
 1298:     unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {
 1299: 	if ($replying) {
 1300: 	    $r->print('<tr><td colspan="2">'.&mt('Replying to').' '.
 1301: 		      &Apache::loncommon::aboutmewrapper(
 1302: 							 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).' ('.
 1303: 		      $content{'sendername'}.'@'.
 1304: 		      $content{'senderdomain'}.')'.
 1305: 		      '<input type="hidden" name="recuname" value="'.$content{'sendername'}.'" />'.
 1306: 		      '<input type="hidden" name="recdomain" value="'.$content{'senderdomain'}.'" />'.
 1307: 		      '</td></tr>');
 1308: 	} else {
 1309: 	    my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
 1310: 	    my $selectlink=&Apache::loncommon::selectstudent_link
 1311: 	    ('compemail','recuname','recdomain');
 1312: 	    $r->print(<<"ENDREC");
 1313: <tr><td>$lt{'us'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recname'}" /></td><td rowspan="2">$selectlink</td></tr>
 1314: <tr><td>$lt{'do'}:</td>
 1315: <td>$domform</td></tr>
 1316: ENDREC
 1317:         }
 1318:     }
 1319:     my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
 1320:     if ($broadcast ne 'upload') {
 1321:        $r->print(<<"ENDCOMP");
 1322: <tr><td>$lt{'ad'}<br /><tt>username\@domain,username\@domain, ...
 1323: </tt></td><td>
 1324: <input type="text" size="50" name="additionalrec" /></td></tr>
 1325: <tr><td>$lt{'sb'}:</td><td><input type="text" size="50" name="subject" value="$dissub" />
 1326: </td></tr></table>
 1327: $latexHelp
 1328: <textarea name="message" id="message" cols="80" rows="15" wrap="hard">$dismsg
 1329: </textarea></p><br />
 1330: $dispcrit
 1331: $disbase
 1332: <input type="hidden" name="folder" value="$folder" />
 1333: <input type="hidden" name="dismode" value="$dismode" />
 1334: <input type="submit" name="send" value="$func $lt{'ma'}" />
 1335: <input type="submit" name="cancel" value="$lt{'ca'}" /><hr />
 1336: $citation
 1337: ENDCOMP
 1338:     } else { # $broadcast is 'upload'
 1339: 	$r->print(<<ENDUPLOAD);
 1340: <input type="hidden" name="sendmode" value="upload" />
 1341: <input type="hidden" name="send" value="on" />
 1342: <h3>Generate messages from a file</h3>
 1343: <p>
 1344: Subject: <input type="text" size="50" name="subject" />
 1345: </p>
 1346: <p>General message text<br />
 1347: <textarea name="message" id="message" cols="60" rows="10" wrap="hard">$dismsg
 1348: </textarea></p>
 1349: <p>
 1350: The file format for the uploaded portion of the message is:
 1351: <pre>
 1352: username1\@domain1: text
 1353: username2\@domain2: text
 1354: username3\@domain1: text
 1355: </pre>
 1356: </p>
 1357: <p>
 1358: The messages will be assembled from all lines with the respective 
 1359: <tt>username\@domain</tt>, and appended to the general message text.</p>
 1360: <p>
 1361: <input type="file" name="upfile" size="40" /></p><p>
 1362: $dispcrit
 1363: <input type="submit" value="Upload and Send" /></p>
 1364: ENDUPLOAD
 1365:     }
 1366:     if ($broadcast eq 'group') {
 1367:        &discourse($r);
 1368:     }
 1369:     $r->print('</form>'.
 1370: 	      &Apache::lonfeedback::generate_preview_button('compemail','message').
 1371: 	      &Apache::lonhtmlcommon::htmlareaselectactive('message'));
 1372: }
 1373: 
 1374: # ---------------------------------------------------- Display all face to face
 1375: 
 1376: sub retrieve_instructor_comments {
 1377:     my ($user,$domain)=@_;
 1378:     my $target=$env{'form.grade_target'};
 1379:     if (! $env{'request.course.id'}) { return; }
 1380:     if (! &Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1381: 	&& ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1382: 				      '/'.$env{'request.course.sec'})) {
 1383: 	return;
 1384:     }
 1385:     my %records=&Apache::lonnet::dump('nohist_email',
 1386: 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
 1387: 			 $env{'course.'.$env{'request.course.id'}.'.num'},
 1388:                          '%255b'.$user.'%253a'.$domain.'%255d');
 1389:     my $result='';
 1390:     foreach (sort(keys(%records))) {
 1391:         my %content=&unpackagemsg($records{$_});
 1392:         next if ($content{'senderdomain'} eq '');
 1393:         next if ($content{'subject'} !~ /^Record/);
 1394: 	# &Apache::lonfeedback::newline_to_br(\$content{'message'});
 1395: 	$result.='Recorded by '.
 1396:             $content{'sendername'}.'@'.$content{'senderdomain'}."\n";
 1397:         $result.=
 1398:             &Apache::lontexconvert::msgtexconverted($content{'message'})."\n";
 1399:      }
 1400:     return $result;
 1401: }
 1402: 
 1403: sub disfacetoface {
 1404:     my ($r,$user,$domain)=@_;
 1405:     my $target=$env{'form.grade_target'};
 1406:     unless ($env{'request.course.id'}) { return; }
 1407:     if  (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1408: 	 && ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1409: 				       '/'.$env{'request.course.sec'})) {
 1410: 	$r->print('Not allowed');
 1411: 	return;
 1412:     }
 1413:     my %records=&Apache::lonnet::dump('nohist_email',
 1414: 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
 1415: 			 $env{'course.'.$env{'request.course.id'}.'.num'},
 1416:                          '%255b'.$user.'%253a'.$domain.'%255d');
 1417:     my $result='';
 1418:     foreach (sort keys %records) {
 1419:         my %content=&unpackagemsg($records{$_});
 1420:         next if ($content{'senderdomain'} eq '');
 1421: 	&Apache::lonfeedback::newline_to_br(\$content{'message'});
 1422:         if ($content{'subject'}=~/^Record/) {
 1423: 	    $result.='<h3>'.&mt('Record').'</h3>';
 1424:         } elsif ($content{'subject'}=~/^Broadcast/) {
 1425:             $result .='<h3>'.&mt('Broadcast Message').'</h3>';
 1426:             if ($content{'subject'}=~/^Broadcast\./) {
 1427:                 %content=&unpackagemsg($content{'message'});
 1428:                 $content{'message'}=
 1429:                     '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
 1430:                     $content{'message'};
 1431:             }    
 1432:         } else {
 1433:             $result.='<h3>'.&mt('Critical Message').'</h3>';
 1434:             %content=&unpackagemsg($content{'message'});
 1435:             $content{'message'}=
 1436:                 '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
 1437: 		$content{'message'};
 1438:         }
 1439:         $result.=&mt('By').': <b>'.
 1440: &Apache::loncommon::aboutmewrapper(
 1441:  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
 1442: $content{'sendername'}.'@'.
 1443:             $content{'senderdomain'}.') '.$content{'time'}.
 1444:             '<br /><pre>'.
 1445:               &Apache::lontexconvert::msgtexconverted($content{'message'}).
 1446: 	      '</pre>';
 1447:      }
 1448:     # Check to see if there were any messages.
 1449:     if ($result eq '') {
 1450: 	if ($target ne 'tex') { 
 1451: 	    $r->print("<p><b>".&mt("No notes, face-to-face discussion records, critical messages, or broadcast messages in this course.")."</b></p>");
 1452: 	} else {
 1453: 	    $r->print('\textbf{'.&mt("No notes, face-to-face discussion records, critical messages or broadcast messages in this course.").'}\\\\');
 1454: 	}
 1455:     } else {
 1456:        $r->print($result);
 1457:     }
 1458: }
 1459: 
 1460: # ---------------------------------------------------------------- Face to face
 1461: 
 1462: sub facetoface {
 1463:     my ($r,$stage)=@_;
 1464:     if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1465: 	&& ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1466: 				      '/'.$env{'request.course.sec'})) {
 1467: 	$r->print('Not allowed');
 1468: 	return;
 1469:     }
 1470:     &printheader($r,
 1471: 		 '/adm/email?recordftf=query',
 1472: 		 "User Notes, Face-to-Face, Critical Messages, Broadcast Messages");
 1473: # from query string
 1474: 
 1475:     if ($env{'form.recname'}) { $env{'form.recuname'}=$env{'form.recname'}; }
 1476:     if ($env{'form.recdom'}) { $env{'form.recdomain'}=$env{'form.recdom'}; }
 1477: 
 1478:     my $defdom=$env{'user.domain'};
 1479: # already filled in
 1480:     if ($env{'form.recdomain'}) { $defdom=$env{'form.recdomain'}; }
 1481: # generate output
 1482:     my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
 1483:     my $stdbrws = &Apache::loncommon::selectstudent_link
 1484: 	('stdselect','recuname','recdomain');
 1485:     my %lt=&Apache::lonlocal::texthash('user' => 'Username',
 1486: 				       'dom' => 'Domain',
 1487: 				       'head' => 'User Notes, Records of Face-To-Face Discussions, Critical Messages, and Broadcast Messages in Course',
 1488: 				       'subm' => 'Retrieve discussion and message records',
 1489: 				       'newr' => 'New Record (record is visible to course faculty and staff)',
 1490: 				       'post' => 'Post this Record');
 1491:     $r->print(<<"ENDTREC");
 1492: <h3>$lt{'head'}</h3>
 1493: <form method="post" action="/adm/email" name="stdselect">
 1494: <input type="hidden" name="recordftf" value="retrieve" />
 1495: <table>
 1496: <tr><td>$lt{'user'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recuname'}" /></td>
 1497: <td rowspan="2">
 1498: $stdbrws
 1499: <input type="submit" value="$lt{'subm'}" /></td>
 1500: </tr>
 1501: <tr><td>$lt{'dom'}:</td>
 1502: <td>$domform</td></tr>
 1503: </table>
 1504: </form>
 1505: ENDTREC
 1506:     if (($stage ne 'query') &&
 1507:         ($env{'form.recdomain'}) && ($env{'form.recuname'})) {
 1508:         chomp($env{'form.newrecord'});
 1509:         if ($env{'form.newrecord'}) {
 1510:            my $recordtxt = $env{'form.newrecord'};
 1511:            &user_normal_msg_raw(
 1512:             $env{'course.'.$env{'request.course.id'}.'.num'},
 1513:             $env{'course.'.$env{'request.course.id'}.'.domain'},
 1514:             &mt('Record').
 1515: 	     ' ['.$env{'form.recuname'}.':'.$env{'form.recdomain'}.']',
 1516: 	    $recordtxt);
 1517:         }
 1518:         $r->print('<h3>'.&Apache::loncommon::plainname($env{'form.recuname'},
 1519: 				     $env{'form.recdomain'}).'</h3>');
 1520:         &disfacetoface($r,$env{'form.recuname'},$env{'form.recdomain'});
 1521: 	$r->print(<<ENDRHEAD);
 1522: <form method="post" action="/adm/email">
 1523: <input name="recdomain" value="$env{'form.recdomain'}" type="hidden" />
 1524: <input name="recuname" value="$env{'form.recuname'}" type="hidden" />
 1525: ENDRHEAD
 1526:         $r->print(<<ENDBFORM);
 1527: <hr />$lt{'newr'}<br />
 1528: <textarea name="newrecord" cols="80" rows="10" wrap="hard"></textarea>
 1529: <br />
 1530: <input type="hidden" name="recordftf" value="post" />
 1531: <input type="submit" value="$lt{'post'}" />
 1532: </form>
 1533: ENDBFORM
 1534:     }
 1535: }
 1536: 
 1537: # ----------------------------------------------------------- Blocking during exams
 1538: 
 1539: sub examblock {
 1540:     my ($r,$action) = @_;
 1541:     unless ($env{'request.course.id'}) { return;}
 1542:     if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1543: 	&& ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1544: 				      '/'.$env{'request.course.sec'})) {
 1545: 	$r->print('Not allowed');
 1546: 	return;
 1547:     }
 1548:     my %lt=&Apache::lonlocal::texthash(
 1549:             'comb' => 'Communication Blocking',
 1550:             'cbds' => 'Communication blocking during scheduled exams',
 1551:             'desc' => 'You can use communication blocking to prevent students enrolled in this course from displaying LON-CAPA messages sent by other students during an online exam. As blocking of communication could potentially interrupt legitimate communication between students who are also both enrolled in a different LON-CAPA course, please be careful that you select the correct start and end times for your scheduled exam when setting or modifying these parameters.',
 1552:              'mecb' => 'Modify existing communication blocking periods',
 1553:              'ncbc' => 'No communication blocks currently stored'
 1554:     );
 1555: 
 1556:     my %ltext = &Apache::lonlocal::texthash(
 1557:             'dura' => 'Duration',
 1558:             'setb' => 'Set by',
 1559:             'even' => 'Event',
 1560:             'actn' => 'Action',
 1561:             'star' => 'Start',
 1562:             'endd' => 'End'
 1563:     );
 1564: 
 1565:     &printheader($r,'/adm/email?block=display',$lt{'comb'});
 1566:     $r->print('<h3>'.$lt{'cbds'}.'</h3>');
 1567: 
 1568:     if ($action eq 'store') {
 1569:         &blockstore($r);
 1570:     }
 1571: 
 1572:     $r->print($lt{'desc'}.'<br /><br />
 1573:                <form name="blockform" method="post" action="/adm/email?block=store">
 1574:              ');
 1575: 
 1576:     $r->print('<h4>'.$lt{'mecb'}.'</h4>');
 1577:     my %records = ();
 1578:     my $blockcount = 0;
 1579:     my $parmcount = 0;
 1580:     &get_blockdates(\%records,\$blockcount);
 1581:     if ($blockcount > 0) {
 1582:         $parmcount = &display_blocker_status($r,\%records,\%ltext);
 1583:     } else {
 1584:         $r->print($lt{'ncbc'}.'<br /><br />');
 1585:     }
 1586:     &display_addblocker_table($r,$parmcount,\%ltext);
 1587:     my $endbody=&Apache::loncommon::endbodytag();
 1588:     $r->print(<<"END");
 1589: <br />
 1590: <input type="hidden" name="blocktotal" value="$blockcount" />
 1591: <input type ="submit" value="Save Changes" />
 1592: </form>
 1593: $endbody
 1594: </html>
 1595: END
 1596:     return;
 1597: }
 1598: 
 1599: sub blockstore {
 1600:     my $r = shift;
 1601:     my %lt=&Apache::lonlocal::texthash(
 1602:             'tfcm' => 'The following changes were made',
 1603:             'cbps' => 'communication blocking period(s)',
 1604:             'werm' => 'was/were removed',
 1605:             'wemo' => 'was/were modified',
 1606:             'wead' => 'was/were added',
 1607:             'ncwm' => 'No changes were made.' 
 1608:     );
 1609:     my %adds = ();
 1610:     my %removals = ();
 1611:     my %cancels = ();
 1612:     my $modtotal = 0;
 1613:     my $canceltotal = 0;
 1614:     my $addtotal = 0;
 1615:     my %blocking = ();
 1616:     $r->print('<h3>'.$lt{'head'}.'</h3>');
 1617:     foreach (keys %env) {
 1618:         if ($_ =~ m/^form\.modify_(\w+)$/) {
 1619:             $adds{$1} = $1;
 1620:             $removals{$1} = $1;
 1621:             $modtotal ++;
 1622:         } elsif ($_ =~ m/^form\.cancel_(\d+)$/) {
 1623:             $cancels{$1} = $1;
 1624:             unless ( defined($removals{$1}) ) {
 1625:                 $removals{$1} = $1;
 1626:                 $canceltotal ++;
 1627:             }
 1628:         } elsif ($_ =~ m/^form\.add_(\d+)$/) {
 1629:             $adds{$1} = $1;
 1630:             $addtotal ++;
 1631:         }
 1632:     }
 1633: 
 1634:     foreach (keys %removals) {
 1635:         my $hashkey = $env{'form.key_'.$_};
 1636:         &Apache::lonnet::del('comm_block',["$hashkey"],
 1637:                          $env{'course.'.$env{'request.course.id'}.'.domain'},
 1638:                          $env{'course.'.$env{'request.course.id'}.'.num'}
 1639:                          );
 1640:     }
 1641:     foreach (keys %adds) {
 1642:         unless ( defined($cancels{$_}) ) {
 1643:             my ($newstart,$newend) = &get_dates_from_form($_);
 1644:             my $newkey = $newstart.'____'.$newend;
 1645:             $blocking{$newkey} = $env{'user.name'}.'@'.$env{'user.domain'}.':'.$env{'form.title_'.$_};
 1646:         }
 1647:     }
 1648:     if ($addtotal + $modtotal > 0) {
 1649:         &Apache::lonnet::put('comm_block',\%blocking,
 1650:                      $env{'course.'.$env{'request.course.id'}.'.domain'},
 1651:                      $env{'course.'.$env{'request.course.id'}.'.num'}
 1652:                      );
 1653:     }
 1654:     my $chgestotal = $canceltotal + $modtotal + $addtotal;
 1655:     if ($chgestotal > 0) {
 1656:         $r->print($lt{'tfcm'}.'<ul>');
 1657:         if ($canceltotal > 0) {
 1658:             $r->print('<li>'.$canceltotal.' '.$lt{'cbps'},' '.$lt{'werm'}.'</li>');
 1659:         }
 1660:         if ($modtotal > 0) {
 1661:             $r->print('<li>'.$modtotal.' '.$lt{'cbps'},' '.$lt{'wemo'}.'</li>');
 1662:         }
 1663:         if ($addtotal > 0) {
 1664:             $r->print('<li>'.$addtotal.' '.$lt{'cbps'},' '.$lt{'wead'}.'</li>');
 1665:         }
 1666:         $r->print('</ul>');
 1667:     } else {
 1668:         $r->print($lt{'ncwm'});
 1669:     }
 1670:     $r->print('<br />');
 1671:     return;
 1672: }
 1673: 
 1674: sub get_dates_from_form {
 1675:     my $item = shift;
 1676:     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$item);
 1677:     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$item);
 1678:     return ($startdate,$enddate);
 1679: }
 1680: 
 1681: sub get_blockdates {
 1682:     my ($records,$blockcount) = @_;
 1683:     $$blockcount = 0;
 1684:     %{$records} = &Apache::lonnet::dump('comm_block',
 1685:                          $env{'course.'.$env{'request.course.id'}.'.domain'},
 1686:                          $env{'course.'.$env{'request.course.id'}.'.num'}
 1687:                          );
 1688:     $$blockcount = keys %{$records};
 1689:                                                                                                              
 1690:     foreach (keys %{$records}) {
 1691:         if ($_ eq 'error: 2 tie(GDBM) Failed while attempting dump') {
 1692:             $$blockcount = 0;
 1693:             last;
 1694:         }
 1695:     }
 1696: }
 1697: 
 1698: sub display_blocker_status {
 1699:     my ($r,$records,$ltext) = @_;
 1700:     my $parmcount = 0;
 1701:     my @bgcols = ("#eeeeee","#dddddd");
 1702:     my $function = &Apache::loncommon::get_users_function();
 1703:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
 1704:                                                     $env{'user.domain'});
 1705:     my %lt = &Apache::lonlocal::texthash(
 1706:         'modi' => 'Modify',
 1707:         'canc' => 'Cancel',
 1708:     );
 1709:     $r->print(<<"END");
 1710: <table border="0" cellpadding="0" cellspacing="0">
 1711:  <tr>
 1712:   <td width="100%" bgcolor="#000000">
 1713:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
 1714:     <tr>
 1715:      <td width="100%" bgcolor="#000000">
 1716:       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
 1717:        <tr bgcolor="$color">
 1718:         <td><b>$$ltext{'dura'}</b></td>
 1719:         <td><b>$$ltext{'setb'}</b></td>
 1720:         <td><b>$$ltext{'even'}</b></td>
 1721:         <td><b>$$ltext{'actn'}?</b></td>
 1722:        </tr>
 1723: END
 1724:     foreach (sort keys %{$records}) {
 1725:         my $iter = $parmcount%2;
 1726:         my $onchange = 'onFocus="javascript:window.document.forms['.
 1727:                        "'blockform'].elements['modify_".$parmcount."'].".
 1728:                        'checked=true;"';
 1729:         my ($start,$end) = split/____/,$_;
 1730:         my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 1731:         my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 1732:         my ($setter,$title) = split/:/,$$records{$_};
 1733:         my ($setuname,$setudom) = split/@/,$setter;
 1734:         my $settername = &Apache::loncommon::plainname($setuname,$setudom);
 1735:         $r->print(<<"END");
 1736:        <tr bgcolor="$bgcols[$iter]">
 1737:         <td>$$ltext{'star'}:&nbsp;$startform<br/>$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
 1738:         <td>$settername</td>
 1739:         <td><input type="text" name="title_$parmcount" size="15" value="$title" /><input type="hidden" name="key_$parmcount" value="$_" /></td>
 1740:         <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>
 1741:        </tr>
 1742: END
 1743:         $parmcount ++;
 1744:     }
 1745:     $r->print(<<"END");
 1746:       </table>
 1747:      </td>
 1748:     </tr>
 1749:    </table>
 1750:   </td>
 1751:  </tr>
 1752: </table>
 1753: <br />
 1754: <br />
 1755: END
 1756:     return $parmcount;
 1757: }
 1758: 
 1759: sub display_addblocker_table {
 1760:     my ($r,$parmcount,$ltext) = @_;
 1761:     my $start = time;
 1762:     my $end = $start + (60 * 60 * 2); #Default is an exam of 2 hours duration.
 1763:     my $onchange = 'onFocus="javascript:window.document.forms['.
 1764:                    "'blockform'].elements['add_".$parmcount."'].".
 1765:                    'checked=true;"';
 1766:     my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 1767:     my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 1768:     my $function = &Apache::loncommon::get_users_function();
 1769:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
 1770:                                                     $env{'user.domain'});
 1771:     my %lt = &Apache::lonlocal::texthash(
 1772:         'addb' => 'Add block',
 1773:         'exam' => 'e.g., Exam 1',
 1774:         'addn' => 'Add new communication blocking periods'
 1775:     );
 1776:     $r->print(<<"END");
 1777: <h4>$lt{'addn'}</h4> 
 1778: <table border="0" cellpadding="0" cellspacing="0">
 1779:  <tr>
 1780:   <td width="100%" bgcolor="#000000">
 1781:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
 1782:     <tr>
 1783:      <td width="100%" bgcolor="#000000">
 1784:       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
 1785:        <tr bgcolor="#CCCCFF">
 1786:         <td><b>$$ltext{'dura'}</b></td>
 1787:         <td><b>$$ltext{'even'} $lt{'exam'}</b></td>
 1788:         <td><b>$$ltext{'actn'}?</b></td>
 1789:        </tr>
 1790:        <tr bgcolor="#eeeeee">
 1791:         <td>$$ltext{'star'}:&nbsp;$startform<br />$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
 1792:         <td><input type="text" name="title_$parmcount" size="15" value="" /></td>
 1793:         <td><label>$lt{'addb'}?&nbsp;<input type="checkbox" name="add_$parmcount" value="1" /></label></td>
 1794:        </tr>
 1795:       </table>
 1796:      </td>
 1797:     </tr>
 1798:    </table>
 1799:   </td>
 1800:  </tr>
 1801: </table>
 1802: END
 1803:     return;
 1804: }
 1805: 
 1806: sub blockcheck {
 1807:     my ($setters,$startblock,$endblock) = @_;
 1808:     # Retrieve active student roles and active course coordinator/instructor roles
 1809:     my @livecses = ();
 1810:     my @staffcses = ();
 1811:     $$startblock = 0;
 1812:     $$endblock = 0;
 1813:     foreach (keys %env) {
 1814:         if ($_ =~ m-^user\.role\.(st|cc|in)\./(.+)$-) {
 1815:             my $role = $1;
 1816:             my $cse = $2;
 1817:             $cse =~ s|/|_|;
 1818:             if ($env{$_} =~ m/^(\d*)\.(\d*)$/) {
 1819:                 unless (($2 > 0 && $2 < time) || ($1 > time)) {
 1820:                     if ($role eq 'st') {
 1821:                         push @livecses, $cse;
 1822:                     } else {
 1823:                         unless (grep/^$cse$/,@staffcses) {
 1824:                             push @staffcses, $cse;
 1825:                         }
 1826:                     }
 1827:                 }
 1828:             }
 1829:         } elsif ($_ =~ m-user\.role\.cr/(\w+)/(\w+)/([^/]+)\./(.+)$- ) { 
 1830:             my $rolepriv = $env{'user.role..rolesdef_'.$3};
 1831:         }
 1832:     }
 1833:     # Retrieve blocking times and identity of blocker for active courses for students.
 1834:     if (@livecses > 0) {
 1835:         foreach my $cse (@livecses) {
 1836:             my ($cdom,$crs) = split/_/,$cse;
 1837:             if ( (grep/^$cse$/,@staffcses) && ($env{'request.role'} !~ m-^st\./$cdom/$crs$-) ) {
 1838:                 next;
 1839:             } else {
 1840:                 %{$$setters{$cse}} = ();
 1841:                 @{$$setters{$cse}{'staff'}} = ();
 1842:                 @{$$setters{$cse}{'times'}} = ();
 1843:                 my %records = &Apache::lonnet::dump('comm_block',$cdom,$crs);
 1844:                 foreach (keys %records) {
 1845:                     if ($_ =~ m/^(\d+)____(\d+)$/) {
 1846:                         if ($1 <= time && $2 >= time) {
 1847:                             my ($staff,$title) = split/:/,$records{$_};
 1848:                             push @{$$setters{$cse}{'staff'}}, $staff;
 1849:                             push @{$$setters{$cse}{'times'}}, $_;
 1850:                             if ( ($$startblock == 0) || ($$startblock > $1) ) {
 1851:                                 $$startblock = $1;
 1852:                             }
 1853:                             if ( ($$endblock == 0) || ($$endblock < $2) ) {
 1854:                                 $$endblock = $2;
 1855:                             }
 1856:                         }
 1857:                     }
 1858:                 }
 1859:             }
 1860:         }
 1861:     }
 1862: }
 1863: 
 1864: sub build_block_table {
 1865:     my ($r,$startblock,$endblock,$setters) = @_;
 1866:     my $function = &Apache::loncommon::get_users_function();
 1867:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
 1868:                                                     $env{'user.domain'});
 1869:     my %lt = &Apache::lonlocal::texthash(
 1870:         'cacb' => 'Currently active communication blocks',
 1871:         'cour' => 'Course',
 1872:         'dura' => 'Duration',
 1873:         'blse' => 'Block set by'
 1874:     ); 
 1875:     $r->print(<<"END");
 1876: <br /<br />$lt{'cacb'}:<br /><br />
 1877: <table border="0" cellpadding="0" cellspacing="0">
 1878:  <tr>
 1879:   <td width="100%" bgcolor="#000000">
 1880:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
 1881:     <tr>
 1882:      <td width="100%" bgcolor="#000000">
 1883:       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
 1884:        <tr bgcolor="$color">
 1885:         <td><b>$lt{'cour'}</b></td>
 1886:         <td><b>$lt{'dura'}</b></td>
 1887:         <td><b>$lt{'blse'}</b></td>
 1888:        </tr>
 1889: END
 1890:     foreach (keys %{$setters}) {
 1891:         my %courseinfo=&Apache::lonnet::coursedescription($_);
 1892:         for (my $i=0; $i<@{$$setters{$_}{staff}}; $i++) {
 1893:             my ($uname,$udom) = split/\@/,$$setters{$_}{staff}[$i];
 1894:             my $fullname = &Apache::loncommon::plainname($uname,$udom);
 1895:             my ($openblock,$closeblock) = split/____/,$$setters{$_}{times}[$i];
 1896:             $openblock = &Apache::lonlocal::locallocaltime($openblock);
 1897:             $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
 1898:             $r->print('<tr><td>'.$courseinfo{'description'}.'</td>'.
 1899:                       '<td>'.$openblock.' to '.$closeblock.'</td>'.
 1900:                       '<td>'.$fullname.' ('.$uname.'@'.$udom.
 1901:                       ')</td></tr>');
 1902:         }
 1903:     }
 1904:     $r->print('</table></td></tr></table></td></tr></table>');
 1905: }
 1906: 
 1907: # ----------------------------------------------------------- Display a message
 1908: 
 1909: sub displaymessage {
 1910:     my ($r,$msgid,$folder)=@_;
 1911:     my $suffix=&foldersuffix($folder);
 1912:     my %blocked = ();
 1913:     my %setters = ();
 1914:     my $startblock = 0;
 1915:     my $endblock = 0;
 1916:     my $numblocked = 0;
 1917: # info to generate "next" and "previous" buttons and check if message is blocked
 1918:     &blockcheck(\%setters,\$startblock,\$endblock);
 1919:     my @messages=&sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder);
 1920:     if ( $blocked{$msgid} eq 'ON' ) {
 1921:         &printheader($r,'/adm/email',&mt('Display a Message'));
 1922:         $r->print(&mt('You attempted to display a message that is currently blocked because you are enrolled in one or more courses for which there is an ongoing online exam.'));
 1923:         &build_block_table($r,$startblock,$endblock,\%setters);
 1924:         return;
 1925:     }
 1926:     &statuschange($msgid,'read',$folder);
 1927:     my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 1928:     my %content=&unpackagemsg($message{$msgid});
 1929: 
 1930:     my $counter=0;
 1931:     $r->print('<pre>');
 1932:     my $escmsgid=&Apache::lonnet::escape($msgid);
 1933:     foreach (@messages) {
 1934: 	if ($_->[5] eq $escmsgid){
 1935: 	    last;
 1936: 	}
 1937: 	$counter++;
 1938:     }
 1939:     $r->print('</pre>');
 1940:     my $number_of_messages = scalar(@messages); #subtract 1 for last index
 1941: # start output
 1942:     &printheader($r,'/adm/email?display='.&Apache::lonnet::escape($msgid),'Display a Message','',$content{'baseurl'});
 1943:     my %courseinfo=&Apache::lonnet::coursedescription($content{'courseid'});
 1944: # Functions
 1945:     $r->print('<table border="2" width="100%"><tr bgcolor="#FFFFAA"><td>'.&mt('Functions').':</td>'.
 1946: 	      '<td><a href="/adm/email?replyto='.&Apache::lonnet::escape($msgid).$sqs.
 1947: 	      '"><b>'.&mt('Reply').'</b></a></td>'.
 1948: 	      '<td><a href="/adm/email?forward='.&Apache::lonnet::escape($msgid).$sqs.
 1949: 	      '"><b>'.&mt('Forward').'</b></a></td>'.
 1950: 	      '<td><a href="/adm/email?markunread='.&Apache::lonnet::escape($msgid).$sqs.
 1951: 	      '"><b>'.&mt('Mark Unread').'</b></a></td>'.
 1952: 	      '<td><a href="/adm/email?markdel='.&Apache::lonnet::escape($msgid).$sqs.
 1953: 	      '"><b>'.&mt('Delete').'</b></a></td>'.
 1954: 	      '<td><a href="/adm/email?'.$sqs.
 1955: 	      ($env{'form.dismode'} eq 'new'?'&folder=new':'').
 1956: 	      '"><b>'.&mt('Back to Folder Display').'</b></a></td>');
 1957:     if ($counter > 0){
 1958: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter-1]->[5].$sqs.
 1959: 		  '"><b>'.&mt('Previous').'</b></a></td>');
 1960:     }
 1961:     if ($counter < $number_of_messages - 1){
 1962: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter+1]->[5].$sqs.
 1963: 		  '"><b>'.&mt('Next').'</b></a></td>');
 1964:     }
 1965:     $r->print('</tr></table>');
 1966:     if ($env{'user.adv'}) {
 1967: 	$r->print('<table border="2" width="100%"><tr bgcolor="#FFAAAA"><td>'.&mt('Currently available actions (will open extra window)').':</td>');
 1968: 	my $symb=&Apache::lonnet::symbread($content{'baseurl'});      
 1969: 	if (&Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
 1970: 		$r->print('<td><b>'.&Apache::loncommon::track_student_link(&mt('View recent activity'),$content{'sendername'},$content{'senderdomain'},'check').'</b></td>');
 1971: 	    }
 1972: 	if (&Apache::lonnet::allowed('opa',$env{'request.course.id'}) && $symb) {
 1973: 	    $r->print('<td><b>'.&Apache::loncommon::pprmlink(&mt('Set/Change parameters'),$content{'sendername'},$content{'senderdomain'},$symb,'check').'</b></td>');
 1974: 	}
 1975: 	if (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}) && $symb) {
 1976: 	    $r->print('<td><b>'.&Apache::loncommon::pgrdlink(&mt('Set/Change grades'),$content{'sendername'},$content{'senderdomain'},$symb,'check').'</b></td>');
 1977: 	}
 1978: 	$r->print('</tr></table>');
 1979:     }
 1980:     my $tolist;
 1981:     my @recipients = ();
 1982:     for (my $i=0; $i<@{$content{'recuser'}}; $i++) {
 1983:         $recipients[$i] =  &Apache::loncommon::aboutmewrapper(
 1984:            &Apache::loncommon::plainname($content{'recuser'}[$i],
 1985:                                       $content{'recdomain'}[$i]),
 1986:               $content{'recuser'}[$i],$content{'recdomain'}[$i]).
 1987:        ' ('.$content{'recuser'}[$i].' at '.$content{'recdomain'}[$i].') ';
 1988:     }
 1989:     $tolist = join(', ',@recipients);
 1990:     $r->print('<br /><b>'.&mt('Subject').':</b> '.$content{'subject'}.
 1991: 	      ($folder ne 'sent'?'<br /><b>'.&mt('From').':</b> '.
 1992: 	      &Apache::loncommon::aboutmewrapper(
 1993: 						 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),
 1994: 						 $content{'sendername'},$content{'senderdomain'}).' ('.
 1995: 	      $content{'sendername'}.' at '.
 1996: 	      $content{'senderdomain'}.') ':'<br /><b>'.&mt('To').':</b> '.
 1997:               $tolist).
 1998: 	      ($content{'courseid'}?'<br /><b>'.&mt('Course').':</b> '.$courseinfo{'description'}.
 1999: 	       ($content{'coursesec'}?' ('.&mt('Group/Section').': '.$content{'coursesec'}.')':''):'').
 2000: 	      '<br /><b>'.&mt('Time').':</b> '.$content{'time'}.
 2001: 	      ($content{'baseurl'}?'<br /><b>'.&mt('Refers to').':</b> <a href="'.$content{'baseurl'}.'">'.
 2002: 	       $content{'baseurl'}.' ('.&Apache::lonnet::gettitle($content{'baseurl'}).')</a>':'').
 2003: 	      '<p><pre>'.
 2004: 	      &Apache::lontexconvert::msgtexconverted($content{'message'},1).
 2005: 	      '</pre><hr />'.&displayresource(%content).'</p>');
 2006:     return;   
 2007: }
 2008: 
 2009: # =========================================================== Show the citation
 2010: 
 2011: sub displayresource {
 2012:     my %content=@_;
 2013: #
 2014: # If the recipient is in the same course that the message was sent from and
 2015: # has sufficient privileges, show "all details," else show citation
 2016: #
 2017:     if (($env{'request.course.id'} eq $content{'courseid'})
 2018:      && (&Apache::lonnet::allowed('vgr',$content{'courseid'}))) {
 2019: 	my $symb=&Apache::lonnet::symbread($content{'baseurl'});
 2020: # Could not get a symb, give up
 2021: 	unless ($symb) { return $content{'citation'}; }
 2022: # Have a symb, can render
 2023: 	return '<h2>'.&mt('Current attempts of student (if applicable)').'</h2>'.
 2024: 	    &Apache::loncommon::get_previous_attempt($symb,
 2025: 						     $content{'sendername'},
 2026: 						     $content{'senderdomain'},
 2027: 						     $content{'courseid'}).
 2028: 	    '<hr /><h2>'.&mt('Current screen output (if applicable)').'</h2>'.
 2029: 	    &Apache::loncommon::get_student_view($symb,
 2030: 						 $content{'sendername'},
 2031: 						 $content{'senderdomain'},
 2032: 						 $content{'courseid'}).
 2033: 	    '<h2>'.&mt('Correct Answer(s) (if applicable)').'</h2>'.
 2034: 	    &Apache::loncommon::get_student_answers($symb,
 2035: 						    $content{'sendername'},
 2036: 						    $content{'senderdomain'},
 2037: 						    $content{'courseid'});
 2038:     } elsif ($env{'user.adv'}) {
 2039: 	return $content{'citation'};
 2040:     }
 2041:     return '';
 2042: }
 2043: 
 2044: # ================================================================== The Header
 2045: 
 2046: sub header {
 2047:     my ($r,$title,$baseurl)=@_;
 2048:     $r->print(&Apache::lonxml::xmlbegin().
 2049: 	      '<head>'.&Apache::lonxml::fontsettings().
 2050: 	      '<title>Communication and Messages</title>'.
 2051: 	      &Apache::lonhtmlcommon::htmlareaheaders());
 2052:     if ($baseurl) {
 2053: 	$r->print("<base href=\"http://$ENV{'SERVER_NAME'}/$baseurl\" />");
 2054:     }
 2055:     $r->print(&Apache::loncommon::studentbrowser_javascript().'</head>'.
 2056: 	      &Apache::loncommon::bodytag('Communication and Messages'));
 2057:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
 2058:                   (undef,($title?$title:'Communication and Messages')));
 2059: 
 2060: }
 2061: 
 2062: # ---------------------------------------------------------------- Print header
 2063: 
 2064: sub printheader {
 2065:     my ($r,$url,$desc,$title,$baseurl)=@_;
 2066:     &Apache::lonhtmlcommon::add_breadcrumb
 2067: 	({href=>$url,
 2068: 	  text=>$desc});
 2069:     &header($r,$title,$baseurl);
 2070: }
 2071: 
 2072: # ------------------------------------------------------------ Store the comment
 2073: 
 2074: sub storecomment {
 2075:     my ($r)=@_;
 2076:     my $msgtxt=&Apache::lonfeedback::clear_out_html($env{'form.message'});
 2077:     my $cleanmsgtxt='';
 2078:     foreach (split(/[\n\r]/,$msgtxt)) {
 2079: 	unless ($_=~/^\s*(\>|\&gt\;)/) {
 2080: 	    $cleanmsgtxt.=$_."\n";
 2081: 	}
 2082:     }
 2083:     my $key=&Apache::lonnet::escape($env{'form.baseurl'}).'___'.time;
 2084:     &Apache::lonnet::put('nohist_stored_comments',{ $key => $cleanmsgtxt });
 2085: }
 2086: 
 2087: sub storedcommentlisting {
 2088:     my ($r)=@_;
 2089:     my %msgs=&Apache::lonnet::dump('nohist_stored_comments',undef,undef,
 2090:        '^'.&Apache::lonnet::escape(&Apache::lonnet::escape($env{'form.showcommentbaseurl'})));
 2091:     $r->print(&Apache::lonxml::xmlbegin().'<head>'.
 2092: 	      &Apache::lonxml::fontsettings().'</head><body>');
 2093:     if ((keys %msgs)[0]=~/^error\:/) {
 2094: 	$r->print(&mt('No stored comments yet.'));
 2095:     } else {
 2096: 	my $found=0;
 2097: 	foreach (sort keys %msgs) {
 2098: 	    $r->print("\n".$msgs{$_}."<hr />");
 2099: 	    $found=1;
 2100: 	}
 2101: 	unless ($found) {
 2102: 	    $r->print(&mt('No stored comments yet for this resource.'));
 2103: 	}
 2104:     }
 2105: }
 2106: 
 2107: # ---------------------------------------------------------------- Send an email
 2108: 
 2109: sub sendoffmail {
 2110:     my ($r,$folder)=@_;
 2111:     my $suffix=&foldersuffix($folder);
 2112:     my $sendstatus='';
 2113:     my %specialmsg_status;
 2114:     my $numspecial = 0;
 2115:     if ($env{'form.send'}) {
 2116: 	&printheader($r,'','Messages being sent.');
 2117: 	$r->rflush();
 2118: 	my %content=();
 2119: 	undef %content;
 2120: 	if ($env{'form.forwid'}) {
 2121: 	    my $msgid=$env{'form.forwid'};
 2122: 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 2123: 	    %content=&unpackagemsg($message{$msgid},1);
 2124: 	    &statuschange($msgid,'forwarded',$folder);
 2125: 	    $env{'form.message'}.="\n\n-- Forwarded message --\n\n".
 2126: 		$content{'message'};
 2127: 	}
 2128: 	if ($env{'form.replyid'}) {
 2129: 	    my $msgid=$env{'form.replyid'};
 2130: 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 2131: 	    %content=&unpackagemsg($message{$msgid},1);
 2132: 	    &statuschange($msgid,'replied',$folder);
 2133: 	}
 2134: 	my %toaddr=();
 2135: 	undef %toaddr;
 2136: 	if ($env{'form.sendmode'} eq 'group') {
 2137: 	    foreach (keys %env) {
 2138: 		if ($_=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
 2139: 		    $toaddr{$1}='';
 2140: 		}
 2141: 	    }
 2142: 	} elsif ($env{'form.sendmode'} eq 'upload') {
 2143: 	    foreach (split(/[\n\r\f]+/,$env{'form.upfile'})) {
 2144: 		my ($rec,$txt)=split(/\s*\:\s*/,$_);
 2145: 		if ($txt) {
 2146: 		    $rec=~s/\@/\:/;
 2147: 		    $toaddr{$rec}.=$txt."\n";
 2148: 		}
 2149: 	    }
 2150: 	} else {
 2151: 	    $toaddr{$env{'form.recuname'}.':'.$env{'form.recdomain'}}='';
 2152: 	}
 2153: 	if ($env{'form.additionalrec'}) {
 2154: 	    foreach (split(/\,/,$env{'form.additionalrec'})) {
 2155: 		my ($auname,$audom)=split(/\@/,$_);
 2156: 		$toaddr{$auname.':'.$audom}='';
 2157: 	    }
 2158: 	}
 2159: 
 2160:         my $savemsg;
 2161:         my $msgtype;
 2162:         my %sentmessage;
 2163:         if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
 2164:             (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 2165: 	     || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 2166: 					 '/'.$env{'request.course.sec'})
 2167: 	     )) {
 2168:             $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'},1);
 2169:             $msgtype = 'critical';
 2170:         } else {
 2171:             $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'});
 2172:         }
 2173: 	
 2174: 	foreach (keys %toaddr) {
 2175: 	    my ($recuname,$recdomain)=split(/\:/,$_);
 2176:             my $msgtxt = $savemsg;
 2177: 	    if ($toaddr{$_}) { $msgtxt.='<hr />'.$toaddr{$_}; }
 2178: 	    my $thismsg;
 2179: 	    if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) && 
 2180: 		(&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 2181: 		 || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 2182: 					     '/'.$env{'request.course.sec'}))) {
 2183: 		$r->print(&mt('Sending critical message').' '.$recuname.'@'.$recdomain.': ');
 2184: 		$thismsg=&user_crit_msg($recuname,$recdomain,
 2185: 					&Apache::lonfeedback::clear_out_html($env{'form.subject'}),
 2186: 					$msgtxt,
 2187: 					$env{'form.sendbck'},$env{'form.permanent'},\$sentmessage{$_});
 2188: 	    } else {
 2189: 		$r->print(&mt('Sending').' '.$recuname.'@'.$recdomain.': ');
 2190: 		$thismsg=&user_normal_msg($recuname,$recdomain,
 2191: 					  &Apache::lonfeedback::clear_out_html($env{'form.subject'}),
 2192: 					  $msgtxt,
 2193: 					  $content{'citation'},undef,undef,$env{'form.permanent'},\$sentmessage{$_});
 2194:             }
 2195: 	    if (($env{'request.course.id'}) && (($msgtype eq 'critical') || 
 2196:                                          ($env{'form.sendmode'} eq 'group'))) {
 2197: 	        $specialmsg_status{$recuname.':'.$recdomain}  = $thismsg;
 2198:                 if ($thismsg eq 'ok') {
 2199:                     $numspecial ++;
 2200:                 }
 2201: 	    }
 2202: 	    $r->print($thismsg.'<br />');
 2203: 	    $sendstatus.=' '.$thismsg;
 2204: 	}
 2205:         if (($env{'request.course.id'}) && (($env{'form.sendmode'} eq 'group')
 2206:                                               || ($msgtype eq 'critical'))) {
 2207:             my $subj_prefix;
 2208:             if ($msgtype eq 'critical') {
 2209:                 $subj_prefix = 'Critical.';
 2210:             } else {
 2211:                 $subj_prefix = 'Broadcast.';
 2212:             }
 2213:             my ($specialmsgid,$specialresult);
 2214:             my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 2215:             my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2216:             my $course_str = &Apache::lonnet::escape('['.$cnum.':'.$cdom.']');
 2217: 
 2218:             if ($numspecial) {
 2219:                 $specialresult = &user_normal_msg_raw($cnum,$cdom,$subj_prefix.
 2220:                     ' '.$course_str,$savemsg,undef,undef,undef,
 2221:                     undef,undef,\$specialmsgid);
 2222:                 $specialmsgid = &Apache::lonnet::unescape($specialmsgid);
 2223:             }
 2224:             if ($specialresult eq 'ok') {
 2225:                 my $record_sent;
 2226:                 my @recusers = ();
 2227:                 my @recudoms = ();
 2228:                 my ($stamp,$msgsubj,$msgname,$msgdom,$msgcount,$context,$pid) = 
 2229:                             split(/\:/,&Apache::lonnet::unescape($specialmsgid));
 2230:                 foreach my $recipient (sort(keys(%toaddr))) {
 2231:                     if ($specialmsg_status{$recipient} eq 'ok') {
 2232:                         my $usersubj = $subj_prefix.'['.$recipient.']';
 2233:                         my $usermsgid = &buildmsgid($stamp,$usersubj,$msgname,
 2234:                                               $msgdom,$msgcount,$context,$pid);
 2235:                         &user_normal_msg_raw($cnum,$cdom,$subj_prefix.
 2236:                         ' ['.$recipient.']',$sentmessage{$recipient},
 2237:                         undef,undef,undef,undef,$usermsgid);
 2238:                         my ($uname,$udom) = split/:/,$recipient;
 2239:                         push(@recusers,$uname);
 2240:                         push(@recudoms,$udom);
 2241:                     }
 2242:                 }
 2243:                 if (@recusers) {
 2244:                     my $specialmessage;
 2245:                     my $sentsubj = $subj_prefix.' ('.$numspecial.' sent) '.
 2246:                     &Apache::lonfeedback::clear_out_html($env{'form.subject'});
 2247:                     $sentsubj = &HTML::Entities::encode($sentsubj,'<>&"');
 2248:                     my $sentmsgid = &buildmsgid($stamp,$sentsubj,$msgname,
 2249:                                               $msgdom,$msgcount,$context,$pid);
 2250:                     ($specialmsgid,$specialmessage) =
 2251:                          &packagemsg(&Apache::lonfeedback::clear_out_html(
 2252:                              $env{'form.subject'}),$savemsg,undef,undef,undef,
 2253:                                             \@recusers,\@recudoms,$sentmsgid);
 2254:                     $record_sent = &store_sent_mail($specialmsgid,$specialmessage);
 2255:                 }
 2256:             } else {
 2257:                 &Apache::lonnet::logthis('Failed to create record of critical message or broadcast in '.$env{'course.'.$env{'request.course.id'}.'.num'}.' at '.$env{'course.'.$env{'request.course.id'}.'.domain'}.' - no msgid generated');
 2258:             }
 2259:         }
 2260:     } else {
 2261: 	&printheader($r,'','No messages sent.'); 
 2262:     }
 2263:     if ($sendstatus=~/^(\s*(?:ok|con_delayed)\s*)*$/) {
 2264: 	$r->print('<br /><font color="green">'.&mt('Completed.').'</font>');
 2265: 	if ($env{'form.displayedcrit'}) {
 2266: 	    &discrit($r);
 2267: 	} else {
 2268: 	    &Apache::loncommunicate::menu($r);
 2269: 	}
 2270:     } else {
 2271: 	$r->print(
 2272: 		  '<h2><font color="red">'.&mt('Could not deliver message').'</font></h2>'.
 2273: 		  &mt('Please use the browser "Back" button and correct the recipient addresses')
 2274: 		  );
 2275:     }
 2276: }
 2277: 
 2278: # ===================================================================== Handler
 2279: 
 2280: sub handler {
 2281:     my $r=shift;
 2282: 
 2283: # ----------------------------------------------------------- Set document type
 2284:     
 2285:     &Apache::loncommon::content_type($r,'text/html');
 2286:     $r->send_http_header;
 2287:     
 2288:     return OK if $r->header_only;
 2289:     
 2290: # --------------------------- Get query string for limited number of parameters
 2291:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 2292:         ['display','replyto','forward','markread','markdel','markunread',
 2293:          'sendreply','compose','sendmail','critical','recname','recdom',
 2294:          'recordftf','sortedby','block','folder','startdis','interdis',
 2295: 	 'showcommentbaseurl','dismode']);
 2296:     $sqs='&sortedby='.$env{'form.sortedby'};
 2297: 
 2298: # ------------------------------------------------------ They checked for email
 2299:     unless ($env{'form.block'}) {
 2300:         &Apache::lonnet::put('email_status',{'recnewemail'=>0});
 2301:     }
 2302: 
 2303: # ----------------------------------------------------------------- Breadcrumbs
 2304: 
 2305:     &Apache::lonhtmlcommon::clear_breadcrumbs();
 2306:     &Apache::lonhtmlcommon::add_breadcrumb
 2307:         ({href=>"/adm/communicate",
 2308:           text=>"Communication/Messages",
 2309:           faq=>12,bug=>'Communication Tools',});
 2310: 
 2311: # ------------------------------------------------------------------ Get Folder
 2312: 
 2313:     my $folder=$env{'form.folder'};
 2314:     unless ($folder) { 
 2315: 	$folder=''; 
 2316:     } else {
 2317: 	$sqs.='&folder='.&Apache::lonnet::escape($folder);
 2318:     }
 2319: # ------------------------------------------------------------ Get Display Mode
 2320: 
 2321:     my $dismode=$env{'form.dismode'};
 2322:     unless ($dismode) { 
 2323: 	$dismode=''; 
 2324:     } else {
 2325: 	$sqs.='&dismode='.&Apache::lonnet::escape($dismode);
 2326:     }
 2327: 
 2328: # --------------------------------------------------------------------- Display
 2329: 
 2330:     $startdis=$env{'form.startdis'};
 2331:     $startdis--;
 2332:     unless ($startdis) { $startdis=0; }
 2333: 
 2334:     $interdis=$env{'form.interdis'};
 2335:     unless ($interdis) { $interdis=20; }
 2336:     $sqs.='&interdis='.$interdis;
 2337: 
 2338:     if ($env{'form.firstview'}) {
 2339: 	$startdis=0;
 2340:     }
 2341:     if ($env{'form.lastview'}) {
 2342: 	$startdis=-1;
 2343:     }
 2344:     if ($env{'form.prevview'}) {
 2345: 	$startdis--;
 2346:     }
 2347:     if ($env{'form.nextview'}) {
 2348: 	$startdis++;
 2349:     }
 2350:     my $postedstartdis=$startdis+1;
 2351:     $sqs.='&startdis='.$postedstartdis;
 2352: 
 2353: # --------------------------------------------------------------- Render Output
 2354: 
 2355:     if ($env{'form.display'}) {
 2356: 	&displaymessage($r,$env{'form.display'},$folder);
 2357:     } elsif ($env{'form.replyto'}) {
 2358: 	&compout($r,'',$env{'form.replyto'},undef,undef,$folder,$dismode);
 2359:     } elsif ($env{'form.confirm'}) {
 2360: 	&printheader($r,'','Confirmed Receipt');
 2361: 	foreach (keys %env) {
 2362: 	    if ($_=~/^form\.rec\_(.*)$/) {
 2363: 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
 2364: 			  &user_crit_received($1).'<br>');
 2365: 	    }
 2366: 	    if ($_=~/^form\.reprec\_(.*)$/) {
 2367: 		my $msgid=$1;
 2368: 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
 2369: 			  &user_crit_received($msgid).'<br>');
 2370: 		&compout($r,'','','',$msgid);
 2371: 	    }
 2372: 	}
 2373: 	&discrit($r);
 2374:     } elsif ($env{'form.critical'}) {
 2375: 	&printheader($r,'','Displaying Critical Messages');
 2376: 	&discrit($r);
 2377:     } elsif ($env{'form.forward'}) {
 2378: 	&compout($r,$env{'form.forward'},undef,undef,undef,$folder);
 2379:     } elsif ($env{'form.markdel'}) {
 2380: 	&printheader($r,'','Deleted Message');
 2381: 	&statuschange($env{'form.markdel'},'deleted',$folder);
 2382: 	&Apache::loncommunicate::menu($r);
 2383: 	&disall($r,($folder?$folder:$dismode));
 2384:     } elsif ($env{'form.markedmove'}) {
 2385: 	my $total=0;
 2386: 	foreach (keys %env) {
 2387: 	    if ($_=~/^form\.delmark_(.*)$/) {
 2388: 		&movemsg(&Apache::lonnet::unescape($1),$folder,
 2389: 			 $env{'form.movetofolder'});
 2390: 		$total++;
 2391: 	    }
 2392: 	}
 2393: 	&printheader($r,'','Moved Messages');
 2394: 	$r->print('Moved '.$total.' message(s)<p>');
 2395: 	&Apache::loncommunicate::menu($r);
 2396: 	&disall($r,($folder?$folder:$dismode));
 2397:     } elsif ($env{'form.markeddel'}) {
 2398: 	my $total=0;
 2399: 	foreach (keys %env) {
 2400: 	    if ($_=~/^form\.delmark_(.*)$/) {
 2401: 		&statuschange(&Apache::lonnet::unescape($1),'deleted',$folder);
 2402: 		$total++;
 2403: 	    }
 2404: 	}
 2405: 	&printheader($r,'','Deleted Messages');
 2406: 	$r->print('Deleted '.$total.' message(s)<p>');
 2407: 	&Apache::loncommunicate::menu($r);
 2408: 	&disall($r,($folder?$folder:$dismode));
 2409:     } elsif ($env{'form.markunread'}) {
 2410: 	&printheader($r,'','Marked Message as Unread');
 2411: 	&statuschange($env{'form.markunread'},'new');
 2412: 	&Apache::loncommunicate::menu($r);
 2413: 	&disall($r,($folder?$folder:$dismode));
 2414:     } elsif ($env{'form.compose'}) {
 2415: 	&compout($r,'','',$env{'form.compose'});
 2416:     } elsif ($env{'form.recordftf'}) {
 2417: 	&facetoface($r,$env{'form.recordftf'});
 2418:     } elsif ($env{'form.block'}) {
 2419:         &examblock($r,$env{'form.block'});
 2420:     } elsif ($env{'form.sendmail'}) {
 2421: 	&sendoffmail($r,$folder);
 2422: 	if ($env{'form.storebasecomment'}) {
 2423: 	    &storecomment($r);
 2424: 	}
 2425: 	if (($env{'form.rsspost'}) && ($env{'request.course.id'})) {
 2426: 	    &Apache::lonrss::addentry($env{'course.'.$env{'request.course.id'}.'.num'},
 2427: 				      $env{'course.'.$env{'request.course.id'}.'.domain'},
 2428: 				      'Course_Announcements',
 2429: 				      $env{'form.subject'},
 2430: 				      $env{'form.message'},'/adm/communicate','public');
 2431: 	}
 2432: 	&disall($r,($folder?$folder:$dismode));
 2433:     } elsif ($env{'form.newfolder'}) {
 2434: 	&printheader($r,'','New Folder');
 2435: 	&makefolder($env{'form.newfolder'});
 2436: 	&Apache::loncommunicate::menu($r);
 2437: 	&disall($r,$env{'form.newfolder'});
 2438:     } elsif ($env{'form.showcommentbaseurl'}) {
 2439: 	&storedcommentlisting($r);
 2440:     } else {
 2441: 	&printheader($r,'','Display All Messages');
 2442: 	&Apache::loncommunicate::menu($r); 
 2443: 	&disall($r,($folder?$folder:$dismode));
 2444:     }
 2445:     $r->print(&Apache::loncommon::endbodytag().'</html>');
 2446:     return OK;
 2447: }
 2448: # ================================================= Main program, reset counter
 2449: 
 2450: BEGIN {
 2451:     $msgcount=0;
 2452: }
 2453: 
 2454: =pod
 2455: 
 2456: =back
 2457: 
 2458: =cut
 2459: 
 2460: 1; 
 2461: 
 2462: __END__
 2463: 
 2464: 
 2465: 
 2466: 
 2467: 
 2468: 
 2469: 

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