File:  [LON-CAPA] / loncom / interface / lonmsg.pm
Revision 1.172: download - view: text, annotated - select for diffs
Tue Jan 10 15:29:13 2006 UTC (18 years, 5 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- err actaully correcting the style

    1: # The LearningOnline Network with CAPA
    2: # Routines for messaging
    3: #
    4: # $Id: lonmsg.pm,v 1.172 2006/01/10 15:29:13 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='';
  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,$message)=&packagemsg($subject,$message,$citation,$baseurl,
  548:                                      $attachmenturl,$user,$domain,$currid);
  549: # Store in user folder
  550:        $status=&Apache::lonnet::critical(
  551:            'put:'.$domain.':'.$user.':nohist_email:'.
  552:            &Apache::lonnet::escape($msgid).'='.
  553:            &Apache::lonnet::escape($message),$homeserver);
  554: # Save new message received time
  555:        &Apache::lonnet::put
  556:                          ('email_status',{'recnewemail'=>time},$domain,$user);
  557: # Into sent-mail folder unless a broadcast message or critical message
  558:        unless (($env{'request.course.id'}) && 
  559:                (($env{'form.sendmode'} eq 'group')  || 
  560:                (($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
  561:                (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
  562: 		|| &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
  563: 					    '/'.$env{'request.course.sec'})))) {
  564:            $status .= &store_sent_mail($msgid,$message);
  565:        }
  566:     } else {
  567:        $status='no_host';
  568:     }
  569:     if (defined($newid)) {
  570:         $$newid = $msgid;
  571:     }
  572:     if (defined($sentmessage)) {
  573:         $$sentmessage = $message;
  574:     }
  575: 
  576: # Notifications
  577:     my %userenv = &Apache::lonnet::get('environment',['notification',
  578:                                                       'permanentemail'],
  579:                                        $domain,$user);
  580:     if ($userenv{'notification'}) {
  581: 	&sendnotification($userenv{'notification'},$user,$domain,$subject,0,
  582: 			  $text);
  583:     }
  584:     if ($toperm && $userenv{'permanentemail'}) {
  585:       &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,0,
  586: 			$text);
  587:     }
  588:     &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
  589:                          $env{'user.home'},
  590:       'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
  591:     return $status;
  592: }
  593: 
  594: # New routine that respects "forward" and calls old routine
  595: 
  596: =pod
  597: 
  598: =item * B<user_normal_msg($user, $domain, $subject, $message,
  599:     $citation, $baseurl, $attachmenturl)>: Sends a message to the
  600:     $user at $domain, with subject $subject and message $message.
  601: 
  602: =cut
  603: 
  604: sub user_normal_msg {
  605:     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
  606: 	$toperm,$sentmessage)=@_;
  607:     my $status='';
  608:     my %userenv = &Apache::lonnet::get('environment',['msgforward'],
  609:                                        $domain,$user);
  610:     my $msgforward=$userenv{'msgforward'};
  611:     if ($msgforward) {
  612:         foreach (split(/\,/,$msgforward)) {
  613: 	    my ($forwuser,$forwdomain)=split(/\:/,$_);
  614: 	    $status.=
  615: 	        &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
  616: 				     $citation,$baseurl,$attachmenturl,$toperm,
  617: 				     undef,undef,$sentmessage).' ';
  618:         }
  619:     } else { 
  620: 	$status=&user_normal_msg_raw($user,$domain,$subject,$message,
  621: 				     $citation,$baseurl,$attachmenturl,$toperm,
  622: 				     undef,undef,$sentmessage);
  623:     }
  624:     return $status;
  625: }
  626: 
  627: sub store_sent_mail {
  628:     my ($msgid,$message) = @_;
  629:     my $status =' '.&Apache::lonnet::critical(
  630:                'put:'.$env{'user.domain'}.':'.$env{'user.name'}.
  631:                                           ':nohist_email_sent:'.
  632:                &Apache::lonnet::escape($msgid).'='.
  633:                &Apache::lonnet::escape($message),$env{'user.home'});
  634:     return $status;
  635: }
  636: 
  637: # ============================================================ List all folders
  638: 
  639: sub folderlist {
  640:     my $folder=shift;
  641:     my @allfolders=&Apache::lonnet::getkeys('email_folders');
  642:     if ($allfolders[0]=~/^error:/) { @allfolders=(); }
  643:     return '<form method="post" action="/adm/email">'.
  644: 	&mt('Folder').': '.
  645: 	&Apache::loncommon::select_form($folder,'folder',
  646: 			     ('' => &mt('INBOX'),'trash' => &mt('TRASH'),
  647: 			      'new' => &mt('New Messages Only'),
  648:                               'critical' => &mt('Critical'),
  649: 			      'sent' => &mt('Sent Messages'),
  650: 			      map { $_ => $_ } @allfolders)).
  651: 			      ' '.&mt('Show').
  652: 			      '<select name="interdis">'.
  653: 			      join("\n",map { '<option value="'.$_.'"'.
  654: 	 ($_==$interdis?' selected="selected"':'').'>'.$_.'</option>' }
  655: 				   (10,20,50,100,200)).'</select>'.	
  656:    '<input type="submit" value="'.&mt('View Folder').'" /><br />'.
  657:     '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />'.
  658: 			      ($folder=~/^(new|critical)/?'</form>':'');
  659: }
  660: 
  661: sub scrollbuttons {
  662:     my ($start,$maxdis,$first,$finish,$total)=@_;
  663:     unless ($total>0) { return ''; }
  664:     $start++; $maxdis++;$first++;$finish++;
  665:     return
  666:    &mt('Page').': '. 
  667:    '<input type="submit" name="firstview" value="'.&mt('First').'" />'.
  668:    '<input type="submit" name="prevview" value="'.&mt('Previous').'" />'.
  669:    '<input type="text" size="5" name="startdis" value="'.$start.'" onChange="this.form.submit()" /> of '.$maxdis.
  670:    '<input type="submit" name="nextview" value="'.&mt('Next').'" />'.
  671:    '<input type="submit" name="lastview" value="'.&mt('Last').'" /><br />'.
  672:    &mt('Showing messages [_1] through [_2] of [_3]',$first,$finish,$total).'</form>';
  673: }
  674: 
  675: # =============================================================== Folder suffix
  676: 
  677: sub foldersuffix {
  678:     my $folder=shift;
  679:     unless ($folder) { return ''; }
  680:     return '_'.&Apache::lonnet::escape($folder);
  681: }
  682: 
  683: # =============================================================== Status Change
  684: 
  685: sub statuschange {
  686:     my ($msgid,$newstatus,$folder)=@_;
  687:     my $suffix=&foldersuffix($folder);
  688:     my %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
  689:     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
  690:     unless ($status{$msgid}) { $status{$msgid}='new'; }
  691:     unless (($status{$msgid} eq 'replied') || 
  692:             ($status{$msgid} eq 'forwarded')) {
  693: 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
  694:     }
  695:     if (($newstatus eq 'deleted') || ($newstatus eq 'new')) {
  696: 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
  697:     }
  698:     if ($newstatus eq 'deleted') {
  699:        &movemsg(&Apache::lonnet::unescape($msgid),$folder,'trash');
  700:    }
  701: }
  702: 
  703: # ============================================================= Make new folder
  704: 
  705: sub makefolder {
  706:     my ($newfolder)=@_;
  707:     if (($newfolder eq 'sent')
  708:      || ($newfolder eq 'critical')
  709:      || ($newfolder eq 'trash')
  710:      || ($newfolder eq 'new')) { return; }
  711:     &Apache::lonnet::put('email_folders',{$newfolder => time});
  712: }
  713: 
  714: # ======================================================== Move between folders
  715: 
  716: sub movemsg {
  717:     my ($msgid,$srcfolder,$trgfolder)=@_;
  718:     if ($srcfolder eq 'new') { $srcfolder=''; }
  719:     my $srcsuffix=&foldersuffix($srcfolder);
  720:     my $trgsuffix=&foldersuffix($trgfolder);
  721: 
  722: # Copy message
  723:     my %message=&Apache::lonnet::get('nohist_email'.$srcsuffix,[$msgid]);
  724:     &Apache::lonnet::put('nohist_email'.$trgsuffix,{$msgid => $message{$msgid}});
  725: 
  726: # Copy status
  727:     unless ($trgfolder eq 'trash') {
  728: 	my %status=&Apache::lonnet::get('email_status'.$srcsuffix,[$msgid]);
  729: 	&Apache::lonnet::put('email_status'.$trgsuffix,{$msgid => $status{$msgid}});
  730:     }
  731: # Delete orginals
  732:     &Apache::lonnet::del('nohist_email'.$srcsuffix,[$msgid]);
  733:     &Apache::lonnet::del('email_status'.$srcsuffix,[$msgid]);
  734: }
  735: 
  736: # ======================================================= Display a course list
  737: 
  738: sub discourse {
  739:     my $r=shift;
  740:     my $classlist = &Apache::loncoursedata::get_classlist();
  741:     my $now=time;
  742:     my %lt=&Apache::lonlocal::texthash('cfa' => 'Check All',
  743:             'cfs' => 'Check Section/Group',
  744:             'cfn' => 'Uncheck All');
  745:     $r->print(<<ENDDISHEADER);
  746: <input type="hidden" name="sendmode" value="group" />
  747: <script>
  748:     function checkall() {
  749: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  750:             if 
  751:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  752: 	      document.forms.compemail.elements[i].checked=true;
  753:             }
  754:         }
  755:     }
  756: 
  757:     function checksec() {
  758: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  759:             if 
  760:           (document.forms.compemail.elements[i].name.indexOf
  761:            ('send_to_&&&'+document.forms.compemail.chksec.value)==0) {
  762: 	      document.forms.compemail.elements[i].checked=true;
  763:             }
  764:         }
  765:     }
  766: 
  767:     function uncheckall() {
  768: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  769:             if 
  770:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  771: 	      document.forms.compemail.elements[i].checked=false;
  772:             }
  773:         }
  774:     }
  775: </script>
  776: <input type="button" onClick="checkall()" value="$lt{'cfa'}" />&nbsp;
  777: <input type="button" onClick="checksec()" value="$lt{'cfs'}" />
  778: <input type="text" size="5" name="chksec" />&nbsp;
  779: <input type="button" onClick="uncheckall()" value="$lt{'cfn'}" />
  780: <p>
  781: ENDDISHEADER
  782:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles();
  783:     $r->print('<table>');
  784:     foreach my $role (sort keys %coursepersonnel) {
  785:         foreach (split(/\,/,$coursepersonnel{$role})) {
  786:             my ($puname,$pudom)=split(/\:/,$_);
  787:             $r->print('<tr><td><label>'.
  788:                       '<input type="checkbox" name="send_to_&&&&&&_'.
  789:                       $puname.':'.$pudom.'" /> '.
  790:                       &Apache::loncommon::plainname($puname,$pudom).
  791:                       '</label></td>'.
  792:                       '<td>('.$_.'),</td><td><i>'.$role.'</i></td></tr>');
  793:         }
  794:     }
  795:     $r->print('</table><table>');
  796:     my $sort = sub {
  797: 	my $aname=lc($classlist->{$a}[&Apache::loncoursedata::CL_FULLNAME()]);
  798: 	if (!$aname) { $aname=$a; }
  799: 	my $bname=lc($classlist->{$b}[&Apache::loncoursedata::CL_FULLNAME()]);
  800: 	if (!$bname) { $bname=$b; }
  801: 	return $aname cmp $bname;
  802:     };
  803:     foreach my $student (sort $sort (keys(%{$classlist}))) {
  804: 	my $info=$classlist->{$student};
  805:         my ($sname,$sdom,$status,$fullname,$section) =
  806:             (@{$info}[&Apache::loncoursedata::CL_SNAME(),
  807:                       &Apache::loncoursedata::CL_SDOM(),
  808:                       &Apache::loncoursedata::CL_STATUS(),
  809:                       &Apache::loncoursedata::CL_FULLNAME(),
  810:                       &Apache::loncoursedata::CL_SECTION()]);
  811:         next if ($status ne 'Active');
  812: 	next if ($env{'request.course.sec'} &&
  813: 		 $section ne $env{'request.course.sec'});
  814:         my $key = 'send_to_&&&'.$section.'&&&_'.$student;
  815:         if (! defined($fullname) || $fullname eq '') { $fullname = $sname; }
  816:         $r->print('<tr><td><label>'.
  817:                   qq{<input type="checkbox" name="$key" />}.('&nbsp;'x2).
  818:                   $fullname.'</label></td><td>'.$sname.'@'.$sdom.'</td><td>'.$section.
  819:                   '</td></tr>');
  820:     }
  821:     $r->print('</table>');
  822: }
  823: 
  824: # ==================================================== Display Critical Message
  825: 
  826: sub discrit {
  827:     my $r=shift;
  828:     my $header = '<h1><font color=red>'.&mt('Critical Messages').'</font></h1>'.
  829:         '<form action="/adm/email" method="POST">'.
  830:         '<input type="hidden" name="confirm" value="true" />';
  831:     my %what=&Apache::lonnet::dump('critical');
  832:     my $result = '';
  833:     foreach (sort keys %what) {
  834:         my %content=&unpackagemsg($what{$_});
  835:         next if ($content{'senderdomain'} eq '');
  836:         $result.='<hr />'.&mt('From').': <b>'.
  837: &Apache::loncommon::aboutmewrapper(
  838:  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
  839: $content{'sendername'}.'@'.
  840:             $content{'senderdomain'}.') '.$content{'time'}.
  841:             '<br />'.&mt('Subject').': '.$content{'subject'}.
  842:             '<br /><pre>'.
  843:               &Apache::lontexconvert::msgtexconverted($content{'message'}).
  844:             '</pre><small>'.
  845: &mt('You have to confirm that you received this message. After confirmation, this message will be moved to your regular inbox').
  846:             '</small><br />'.
  847:             '<input type="submit" name="rec_'.$_.'" value="'.&mt('Confirm Receipt').'" />'.
  848:             '<input type="submit" name="reprec_'.$_.'" '.
  849:                   'value="'.&mt('Confirm Receipt and Reply').'" />';
  850:     }
  851:     # Check to see if there were any messages.
  852:     if ($result eq '') {
  853:         $result = "<h2>".&mt('You have no critical messages.')."</h2>".
  854: 	    '<a href="/adm/roles">'.&mt('Select a course').'</a><br />'.
  855:             '<a href="/adm/email">'.&mt('Communicate').'</a>';
  856:     } else {
  857:         $r->print($header);
  858:     }
  859:     $r->print($result);
  860:     $r->print('<input type="hidden" name="displayedcrit" value="true" /></form>');
  861: }
  862: 
  863: sub sortedmessages {
  864:     my ($blocked,$startblock,$endblock,$numblocked,$folder) = @_;
  865:     my $suffix=&foldersuffix($folder);
  866:     my @messages = &Apache::lonnet::getkeys('nohist_email'.$suffix);
  867:     #unpack the varibles and repack into temp for sorting
  868:     my @temp;
  869:     my %descriptions;
  870:     my %status_cache = 
  871: 	&Apache::lonnet::get('email_status'.&foldersuffix($folder),\@messages);
  872:     foreach (@messages) {
  873: 	my $msgid=&Apache::lonnet::escape($_);
  874: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid)=
  875: 	    &Apache::lonmsg::unpackmsgid($msgid,$folder,undef,
  876: 					 \%status_cache);
  877:         my $description = &get_course_desc($fromcid,\%descriptions);
  878: 	my @temp1 = ($sendtime,$shortsubj,$fromname,$fromdomain,$status,
  879: 		     $msgid,$description);
  880:         # Check whether message was sent during blocking period.
  881:         if ($sendtime >= $startblock && ($sendtime <= $endblock && $endblock > 0) ) {
  882:             my $escid = &Apache::lonnet::unescape($msgid);
  883:             $$blocked{$escid} = 'ON';
  884:             $$numblocked ++;
  885:         } else { 
  886:             push @temp ,\@temp1;
  887:         }
  888:     }
  889:     #default sort
  890:     @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  891:     if ($env{'form.sortedby'} eq "date"){
  892:         @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  893:     }
  894:     if ($env{'form.sortedby'} eq "revdate"){
  895:     	@temp = sort  {$b->[0] <=> $a->[0]} @temp; 
  896:     }
  897:     if ($env{'form.sortedby'} eq "user"){
  898: 	@temp = sort  {lc($a->[2]) cmp lc($b->[2])} @temp;
  899:     }
  900:     if ($env{'form.sortedby'} eq "revuser"){
  901: 	@temp = sort  {lc($b->[2]) cmp lc($a->[2])} @temp;
  902:     }
  903:     if ($env{'form.sortedby'} eq "domain"){
  904:         @temp = sort  {$a->[3] cmp $b->[3]} @temp;
  905:     }
  906:     if ($env{'form.sortedby'} eq "revdomain"){
  907:         @temp = sort  {$b->[3] cmp $a->[3]} @temp;
  908:     }
  909:     if ($env{'form.sortedby'} eq "subject"){
  910:         @temp = sort  {lc($a->[1]) cmp lc($b->[1])} @temp;
  911:     }
  912:     if ($env{'form.sortedby'} eq "revsubject"){
  913:         @temp = sort  {lc($b->[1]) cmp lc($a->[1])} @temp;
  914:     }
  915:     if ($env{'form.sortedby'} eq "course"){
  916:         @temp = sort  {lc($a->[6]) cmp lc($b->[6])} @temp;
  917:     }
  918:     if ($env{'form.sortedby'} eq "revcourse"){
  919:         @temp = sort  {lc($b->[6]) cmp lc($a->[6])} @temp;
  920:     }
  921:     if ($env{'form.sortedby'} eq "status"){
  922:         @temp = sort  {$a->[4] cmp $b->[4]} @temp;
  923:     }
  924:     if ($env{'form.sortedby'} eq "revstatus"){
  925:         @temp = sort  {$b->[4] cmp $a->[4]} @temp;
  926:     }
  927:     return @temp;
  928: }
  929: 
  930: sub get_course_desc {
  931:     my ($fromcid,$descriptions) = @_;
  932:     my $description;
  933:     if (!$fromcid) {
  934:         return $description;
  935:     } else {
  936:         if (defined($$descriptions{$fromcid})) {
  937:             $description = $$descriptions{$fromcid};
  938:         } else {
  939:             if (defined($env{'course.'.$fromcid.'.description'})) {
  940:                 $description = $env{'course.'.$fromcid.'.description'};
  941:             } else {
  942:                 my %courseinfo=&Apache::lonnet::coursedescription($fromcid);                $description = $courseinfo{'description'};
  943:                 $description = $courseinfo{'description'};
  944:             }
  945:             $$descriptions{$fromcid} = $description;
  946:         }
  947:         return $description;
  948:     }
  949: }
  950: 
  951: # ======================================================== Display new messages
  952: 
  953: 
  954: sub disnew {
  955:     my $r=shift;
  956:     my %lt=&Apache::lonlocal::texthash(
  957: 				       'nm' => 'New Messages',
  958: 				       'su' => 'Subject',
  959:                                        'co' => 'Course',
  960: 				       'da' => 'Date',
  961: 				       'us' => 'Username',
  962: 				       'op' => 'Open',
  963: 				       'do' => 'Domain'
  964: 				       );
  965:     my @msgids = sort(&Apache::lonnet::getkeys('nohist_email'));
  966:     my @newmsgs;
  967:     my %setters = ();
  968:     my $startblock = 0;
  969:     my $endblock = 0;
  970:     my %blocked = ();
  971:     my $numblocked = 0;
  972:     # Check for blocking of display because of scheduled online exams.
  973:     &blockcheck(\%setters,\$startblock,\$endblock);
  974:     my %status_cache = 
  975: 	&Apache::lonnet::get('email_status',\@msgids);
  976:     my %descriptions;
  977:     foreach (@msgids) {
  978: 	my $msgid=&Apache::lonnet::escape($_);
  979:         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
  980: 	    &Apache::lonmsg::unpackmsgid($msgid,undef,undef,\%status_cache);
  981:         if (defined($sendtime) && $sendtime!~/error/) {
  982:             my $description = &get_course_desc($fromcid,\%descriptions);
  983:             my $numsendtime = $sendtime;
  984:             $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
  985:             if ($status eq 'new') {
  986:                 if ($numsendtime >= $startblock && ($numsendtime <= $endblock && $endblock > 0) ) {
  987:                     $blocked{$_} = 'ON';
  988:                     $numblocked ++;
  989:                 } else {
  990:                     push @newmsgs, { 
  991:                         msgid    => $msgid,
  992:                         sendtime => $sendtime,
  993:                         shortsub => &Apache::lonnet::unescape($shortsubj),
  994:                         from     => $fromname,
  995:                         fromdom  => $fromdom,
  996:                         course   => $description 
  997:                         }
  998:                 }
  999:             }
 1000:         }
 1001:     }
 1002:     if ($#newmsgs >= 0) {
 1003:         $r->print(<<TABLEHEAD);
 1004: <h2>$lt{'nm'}</h2>
 1005: <table border=2><tr><th>&nbsp</th>
 1006: <th>$lt{'da'}</th><th>$lt{'us'}</th><th>$lt{'do'}</th><th>$lt{'su'}</th><th>$lt{'co'}</th></tr>
 1007: TABLEHEAD
 1008:         foreach my $msg (@newmsgs) {
 1009:             $r->print(<<"ENDLINK");
 1010: <tr class="new" bgcolor="#FFBB77" onMouseOver="javascript:style.backgroundColor='#DD9955'" 
 1011: onMouseOut="javascript:style.backgroundColor='#FFBB77'">
 1012: <td><a href="/adm/email?dismode=new&display=$msg->{'msgid'}">$lt{'op'}</a></td>
 1013: ENDLINK
 1014:             foreach ('sendtime','from','fromdom','shortsub','course') {
 1015:                 $r->print("<td>$msg->{$_}</td>");
 1016:             }
 1017:             $r->print("</td></tr>");
 1018:         }
 1019:         $r->print('</table>'.&Apache::loncommon::endbodytag().'</html>');
 1020:     } elsif ($numblocked == 0) {
 1021:         $r->print("<h3>".&mt('You have no unread messages')."</h3>");
 1022:     }
 1023:     if ($numblocked > 0) {
 1024:         my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
 1025:         my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
 1026:         if ($numblocked == 1) {
 1027:             $r->print("<h3>".&mt('You have').' '.$numblocked.' '.&mt('blocked unread message').".</h3>");
 1028:             $r->print(&mt('This message is not viewable because').' ');
 1029:         } else {
 1030:             $r->print("<h3>".&mt('You have').' '.$numblocked.' '.&mt('blocked unread messages').".</h3>");
 1031:             $r->print(&mt('These').' '.$numblocked.' '.&mt('messages are not viewable because '));
 1032:         }
 1033:         $r->print(
 1034: &mt('display of LON-CAPA messages sent to you by other students between').' '.$beginblock.' '.&mt('and').' '.$finishblock.' '.&mt('is currently being blocked because of online exams').'.');
 1035:         &build_block_table($r,$startblock,$endblock,\%setters);
 1036:     }
 1037: }
 1038: 
 1039: 
 1040: # ======================================================== Display all messages
 1041: 
 1042: sub disall {
 1043:     my ($r,$folder)=@_;
 1044:     $r->print(&folderlist($folder));
 1045:     if ($folder eq 'new') {
 1046: 	&disnew($r);
 1047:     } elsif ($folder eq 'critical') {
 1048: 	&discrit($r);
 1049:     } else {
 1050: 	&disfolder($r,$folder);
 1051:     }
 1052: }
 1053: 
 1054: # ============================================================ Display a folder
 1055: 
 1056: sub disfolder {
 1057:     my ($r,$folder)=@_;
 1058:     my %blocked = ();
 1059:     my %setters = ();
 1060:     my $startblock;
 1061:     my $endblock;
 1062:     my $numblocked = 0;
 1063:     &blockcheck(\%setters,\$startblock,\$endblock);
 1064:     $r->print(<<ENDDISHEADER);
 1065: <script>
 1066:     function checkall() {
 1067: 	for (i=0; i<document.forms.disall.elements.length; i++) {
 1068:             if 
 1069:           (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
 1070: 	      document.forms.disall.elements[i].checked=true;
 1071:             }
 1072:         }
 1073:     }
 1074: 
 1075:     function uncheckall() {
 1076: 	for (i=0; i<document.forms.disall.elements.length; i++) {
 1077:             if 
 1078:           (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
 1079: 	      document.forms.disall.elements[i].checked=false;
 1080:             }
 1081:         }
 1082:     }
 1083: </script>
 1084: ENDDISHEADER
 1085:     my $fsqs='&folder='.$folder;
 1086:     my @temp=sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder);
 1087:     my $totalnumber=$#temp+1;
 1088:     unless ($totalnumber>0) {
 1089: 	$r->print('<h2>'.&mt('Empty Folder').'</h2>');
 1090: 	return;
 1091:     }
 1092:     unless ($interdis) {
 1093: 	$interdis=20;
 1094:     }
 1095:     my $number=int($totalnumber/$interdis);
 1096:     if (($startdis<0) || ($startdis>$number)) { $startdis=$number; }
 1097:     my $firstdis=$interdis*$startdis;
 1098:     if ($firstdis>$#temp) { $firstdis=$#temp-$interdis+1; }
 1099:     my $lastdis=$firstdis+$interdis-1;
 1100:     if ($lastdis>$#temp) { $lastdis=$#temp; }
 1101:     $r->print(&scrollbuttons($startdis,$number,$firstdis,$lastdis,$totalnumber));
 1102:     $r->print('<form method="post" name="disall" action="/adm/email">'.
 1103: 	      '<table border=2><tr><th colspan="3">&nbsp</th><th>');
 1104:     if ($env{'form.sortedby'} eq "revdate") {
 1105: 	$r->print('<a href = "?sortedby=date'.$fsqs.'">'.&mt('Date').'</a></th>');
 1106:     } else {
 1107: 	$r->print('<a href = "?sortedby=revdate'.$fsqs.'">'.&mt('Date').'</a></th>');
 1108:     }
 1109:     $r->print('<th>');
 1110:     if ($env{'form.sortedby'} eq "revuser") {
 1111: 	$r->print('<a href = "?sortedby=user'.$fsqs.'">'.&mt('Username').'</a>');
 1112:     } else {
 1113: 	$r->print('<a href = "?sortedby=revuser'.$fsqs.'">'.&mt('Username').'</a>');
 1114:     }
 1115:     $r->print('</th><th>');
 1116:     if ($env{'form.sortedby'} eq "revdomain") {
 1117: 	$r->print('<a href = "?sortedby=domain'.$fsqs.'">'.&mt('Domain').'</a>');
 1118:     } else {
 1119: 	$r->print('<a href = "?sortedby=revdomain'.$fsqs.'">'.&mt('Domain').'</a>');
 1120:     }
 1121:     $r->print('</th><th>');
 1122:     if ($env{'form.sortedby'} eq "revsubject") {
 1123: 	$r->print('<a href = "?sortedby=subject'.$fsqs.'">'.&mt('Subject').'</a>');
 1124:     } else {
 1125:     	$r->print('<a href = "?sortedby=revsubject'.$fsqs.'">'.&mt('Subject').'</a>');
 1126:     }
 1127:     $r->print('</th><th>');
 1128:     if ($env{'form.sortedby'} eq "revcourse") {
 1129:         $r->print('<a href = "?sortedby=course'.$fsqs.'">'.&mt('Course').'</a>');
 1130:     } else {
 1131:         $r->print('<a href = "?sortedby=revcourse'.$fsqs.'">'.&mt('Course').'</a>');
 1132:     }
 1133:     $r->print('</th><th>');
 1134:     if ($env{'form.sortedby'} eq "revstatus") {
 1135: 	$r->print('<a href = "?sortedby=status'.$fsqs.'">'.&mt('Status').'</a></th>');
 1136:     } else {
 1137:      	$r->print('<a href = "?sortedby=revstatus'.$fsqs.'">'.&mt('Status').'</a></th>');
 1138:     }
 1139:     $r->print("</tr>\n");
 1140:     for (my $n=$firstdis;$n<=$lastdis;$n++) {
 1141: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$origID,$description)= @{$temp[$n]};
 1142: 	if (($status ne 'deleted') && defined($sendtime) && $sendtime!~/error/) {
 1143: 	    if ($status eq 'new') {
 1144: 		$r->print('<tr bgcolor="#FFBB77" onMouseOver="javascript:style.backgroundColor=\'#DD9955\'"  onMouseOut="javascript:style.backgroundColor=\'#FFBB77\'">');
 1145: 	    } elsif ($status eq 'read') {
 1146: 		$r->print('<tr bgcolor="#BBBB77" onMouseOver="javascript:style.backgroundColor=\'#999944\'"  onMouseOut="javascript:style.backgroundColor=\'#BBBB77\'">');
 1147: 	    } elsif ($status eq 'replied') {
 1148: 		$r->print('<tr bgcolor="#AAAA88" onMouseOver="javascript:style.backgroundColor=\'#888855\'"  onMouseOut="javascript:style.backgroundColor=\'#AAAA88\'">'); 
 1149: 	    } else {
 1150: 		$r->print('<tr bgcolor="#99BBBB" onMouseOver="javascript:style.backgroundColor=\'#669999\'"  onMouseOut="javascript:style.backgroundColor=\'#99BBBB\'">');
 1151: 	    }
 1152: 	    $r->print('<td><input type="checkbox" name="delmark_'.$origID.'" /></td><td><a href="/adm/email?display='.$origID.$sqs. 
 1153: 		      '">'.&mt('Open').'</a></td><td>'.
 1154: 		      ($folder ne 'trash'?'<a href="/adm/email?markdel='.$origID.$sqs.
 1155: 		      '">'.&mt('Delete'):'&nbsp').'</a></td>'.
 1156: 		      '<td>'.&Apache::lonlocal::locallocaltime($sendtime).'</td><td>'.
 1157: 		      $fromname.'</td><td>'.$fromdomain.'</td><td>'.
 1158: 		      &Apache::lonnet::unescape($shortsubj).'</td><td>'.
 1159:                       $description.'</td><td>'.$status.'</td></tr>'."\n");
 1160: 	} elsif ($status eq 'deleted') {
 1161: # purge
 1162: 	    &movemsg(&Apache::lonnet::unescape($origID),$folder,'trash');
 1163: 	}
 1164:     }   
 1165:     $r->print("</table>\n<p>".
 1166:   '<a href="javascript:checkall()">'.&mt('Check All').'</a>&nbsp;'.
 1167:   '<a href="javascript:uncheckall()">'.&mt('Uncheck All').'</a></p>'.
 1168:   '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />');
 1169:     if ($folder ne 'trash') {
 1170: 	$r->print(
 1171: 	      '<p><input type="submit" name="markeddel" value="'.&mt('Delete Checked').'" /></p>');
 1172:     }
 1173:     $r->print('<p><input type="submit" name="markedmove" value="'.&mt('Move Checked to Folder').'" />');
 1174:     my @allfolders=&Apache::lonnet::getkeys('email_folders');
 1175:     if ($allfolders[0]=~/^error:/) { @allfolders=(); }
 1176:     $r->print(
 1177: 	&Apache::loncommon::select_form('','movetofolder',
 1178: 			     ( map { $_ => $_ } @allfolders))
 1179: 	      );
 1180:     my $postedstartdis=$startdis+1;
 1181:     $r->print('<input type="hidden" name="folder" value="'.$folder.'" /><input type="hidden" name="startdis" value="'.$postedstartdis.'" /><input type="hidden" name="interdis" value="'.$env{'form.interdis'}.'" /></form>');
 1182:     if ($numblocked > 0) {
 1183:         my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
 1184:         my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
 1185:         $r->print('<br /><br />'.
 1186:                   $numblocked.' '.&mt('message(s) is/are not viewable because display of LON-CAPA messages sent to you by other students between').' '.$beginblock.' '.&mt('and').' '.$finishblock.' '.&mt('is currently being blocked because of online exams.'));
 1187:         &build_block_table($r,$startblock,$endblock,\%setters);
 1188:     }
 1189: }
 1190: 
 1191: # ============================================================== Compose output
 1192: 
 1193: sub compout {
 1194:     my ($r,$forwarding,$replying,$broadcast,$replycrit,$folder,$dismode)=@_;
 1195:     my $suffix=&foldersuffix($folder);
 1196: 
 1197:     if ($broadcast eq 'individual') {
 1198: 	&printheader($r,'/adm/email?compose=individual',
 1199: 	     'Send a Message');
 1200:     } elsif ($broadcast) {
 1201: 	&printheader($r,'/adm/email?compose=group',
 1202: 	     'Broadcast Message');
 1203:     } elsif ($forwarding) {
 1204: 	&Apache::lonhtmlcommon::add_breadcrumb
 1205:         ({href=>"/adm/email?display=".&Apache::lonnet::escape($forwarding),
 1206:           text=>"Display Message"});
 1207: 	&printheader($r,'/adm/email?forward='.&Apache::lonnet::escape($forwarding),
 1208: 	     'Forwarding a Message');
 1209:     } elsif ($replying) {
 1210: 	&Apache::lonhtmlcommon::add_breadcrumb
 1211:         ({href=>"/adm/email?display=".&Apache::lonnet::escape($replying),
 1212:           text=>"Display Message"});
 1213: 	&printheader($r,'/adm/email?replyto='.&Apache::lonnet::escape($replying),
 1214: 	     'Replying to a Message');
 1215:     } elsif ($replycrit) {
 1216: 	$r->print('<h3>'.&mt('Replying to a Critical Message').'</h3>');
 1217: 	$replying=$replycrit;
 1218:     } else {
 1219: 	&printheader($r,'/adm/email?compose=upload',
 1220: 	     'Distribute from Uploaded File');
 1221:     }
 1222: 
 1223:     my $dispcrit='';
 1224:     my $dissub='';
 1225:     my $dismsg='';
 1226:     my $disbase='';
 1227:     my $func=&mt('Send New');
 1228:     my %lt=&Apache::lonlocal::texthash('us' => 'Username',
 1229: 				       'do' => 'Domain',
 1230: 				       'ad' => 'Additional Recipients',
 1231: 				       'sb' => 'Subject',
 1232: 				       'ca' => 'Cancel',
 1233: 				       'ma' => 'Mail');
 1234: 
 1235:     if (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1236: 	|| &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1237: 				    '/'.$env{'request.course.sec'})) {
 1238: 	 my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
 1239:          $dispcrit=
 1240:  '<p><label><input type="checkbox" name="critmsg" /> '.&mt('Send as critical message').'</label> ' . $crithelp . 
 1241:  '</p><p>'.
 1242:  '<label><input type="checkbox" name="sendbck" /> '.&mt('Send as critical message').'  ' .
 1243:  &mt('and return receipt') . '</label>' . $crithelp . 
 1244:  '</p><p><label><input type="checkbox" name="permanent" /> '.
 1245: &mt('Send copy to permanent email address (if known)').'</label></p>'.
 1246: '<!-- <p><label><input type="checkbox" name="rsspost" /> '.
 1247: 		  &mt('Include in course RSS newsfeed').'</label></p>-->';      }
 1248:     my %message;
 1249:     my %content;
 1250:     my $defdom=$env{'user.domain'};
 1251:     if ($forwarding) {
 1252: 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$forwarding]);
 1253: 	%content=&unpackagemsg($message{$forwarding},$folder);
 1254: 	$dispcrit.='<input type="hidden" name="forwid" value="'.
 1255: 	    $forwarding.'" />';
 1256: 	$func=&mt('Forward');
 1257: 	
 1258: 	$dissub=&mt('Forwarding').': '.$content{'subject'};
 1259: 	$dismsg=&mt('Forwarded message from').' '.
 1260: 	    $content{'sendername'}.' '.&mt('at').' '.$content{'senderdomain'};
 1261: 	if ($content{'baseurl'}) {
 1262: 	    $disbase='<input type="hidden" name="baseurl" value="'.&Apache::lonnet::escape($content{'baseurl'}).'" />';
 1263: 	}
 1264:     }
 1265:     if ($replying) {
 1266: 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$replying]);
 1267: 	%content=&unpackagemsg($message{$replying},$folder);
 1268: 	$dispcrit.='<input type="hidden" name="replyid" value="'.
 1269: 	    $replying.'" />';
 1270: 	$func=&mt('Send Reply to');
 1271: 	
 1272: 	$dissub=&mt('Reply').': '.$content{'subject'};       
 1273: 	$dismsg='> '.$content{'message'};
 1274: 	$dismsg=~s/\r/\n/g;
 1275: 	$dismsg=~s/\f/\n/g;
 1276: 	$dismsg=~s/\n+/\n\> /g;
 1277: 	if ($content{'baseurl'}) {
 1278: 	    $disbase='<input type="hidden" name="baseurl" value="'.&Apache::lonnet::escape($content{'baseurl'}).'" />';
 1279: 	    if ($env{'user.adv'}) {
 1280: 		$disbase.='<label><input type="checkbox" name="storebasecomment" />'.&mt('Store message for re-use').
 1281: 		    '</label> <a href="/adm/email?showcommentbaseurl='.
 1282: 		    &Apache::lonnet::escape($content{'baseurl'}).'" target="comments">'.
 1283: 		    &mt('Show re-usable messages').'</a><br />';
 1284: 	    }
 1285: 	}
 1286:     }
 1287:     my $citation=&displayresource(%content);
 1288:     if ($env{'form.recdom'}) { $defdom=$env{'form.recdom'}; }
 1289:       $r->print(
 1290:                 '<form action="/adm/email"  name="compemail" method="post"'.
 1291:                 ' enctype="multipart/form-data">'."\n".
 1292:                 '<input type="hidden" name="sendmail" value="on" />'."\n".
 1293:                 '<table>');
 1294:     unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {
 1295: 	if ($replying) {
 1296: 	    $r->print('<tr><td colspan="2">'.&mt('Replying to').' '.
 1297: 		      &Apache::loncommon::aboutmewrapper(
 1298: 							 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).' ('.
 1299: 		      $content{'sendername'}.'@'.
 1300: 		      $content{'senderdomain'}.')'.
 1301: 		      '<input type="hidden" name="recuname" value="'.$content{'sendername'}.'" />'.
 1302: 		      '<input type="hidden" name="recdomain" value="'.$content{'senderdomain'}.'" />'.
 1303: 		      '</td></tr>');
 1304: 	} else {
 1305: 	    my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
 1306: 	    my $selectlink=&Apache::loncommon::selectstudent_link
 1307: 	    ('compemail','recuname','recdomain');
 1308: 	    $r->print(<<"ENDREC");
 1309: <tr><td>$lt{'us'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recname'}" /></td><td rowspan="2">$selectlink</td></tr>
 1310: <tr><td>$lt{'do'}:</td>
 1311: <td>$domform</td></tr>
 1312: ENDREC
 1313:         }
 1314:     }
 1315:     my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
 1316:     if ($broadcast ne 'upload') {
 1317:        $r->print(<<"ENDCOMP");
 1318: <tr><td>$lt{'ad'}<br /><tt>username\@domain,username\@domain, ...
 1319: </tt></td><td>
 1320: <input type="text" size="50" name="additionalrec" /></td></tr>
 1321: <tr><td>$lt{'sb'}:</td><td><input type="text" size="50" name="subject" value="$dissub" />
 1322: </td></tr></table>
 1323: $latexHelp
 1324: <textarea name="message" id="message" cols="80" rows="15" wrap="hard">$dismsg
 1325: </textarea></p><br />
 1326: $dispcrit
 1327: $disbase
 1328: <input type="hidden" name="folder" value="$folder" />
 1329: <input type="hidden" name="dismode" value="$dismode" />
 1330: <input type="submit" name="send" value="$func $lt{'ma'}" />
 1331: <input type="submit" name="cancel" value="$lt{'ca'}" /><hr />
 1332: $citation
 1333: ENDCOMP
 1334:     } else { # $broadcast is 'upload'
 1335: 	$r->print(<<ENDUPLOAD);
 1336: <input type="hidden" name="sendmode" value="upload" />
 1337: <input type="hidden" name="send" value="on" />
 1338: <h3>Generate messages from a file</h3>
 1339: <p>
 1340: Subject: <input type="text" size="50" name="subject" />
 1341: </p>
 1342: <p>General message text<br />
 1343: <textarea name="message" id="message" cols="60" rows="10" wrap="hard">$dismsg
 1344: </textarea></p>
 1345: <p>
 1346: The file format for the uploaded portion of the message is:
 1347: <pre>
 1348: username1\@domain1: text
 1349: username2\@domain2: text
 1350: username3\@domain1: text
 1351: </pre>
 1352: </p>
 1353: <p>
 1354: The messages will be assembled from all lines with the respective 
 1355: <tt>username\@domain</tt>, and appended to the general message text.</p>
 1356: <p>
 1357: <input type="file" name="upfile" size="40" /></p><p>
 1358: $dispcrit
 1359: <input type="submit" value="Upload and Send" /></p>
 1360: ENDUPLOAD
 1361:     }
 1362:     if ($broadcast eq 'group') {
 1363:        &discourse($r);
 1364:     }
 1365:     $r->print('</form>'.
 1366: 	      &Apache::lonfeedback::generate_preview_button('compemail','message').
 1367: 	      &Apache::lonhtmlcommon::htmlareaselectactive('message'));
 1368: }
 1369: 
 1370: # ---------------------------------------------------- Display all face to face
 1371: 
 1372: sub retrieve_instructor_comments {
 1373:     my ($user,$domain)=@_;
 1374:     my $target=$env{'form.grade_target'};
 1375:     if (! $env{'request.course.id'}) { return; }
 1376:     if (! &Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1377: 	&& ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1378: 				      '/'.$env{'request.course.sec'})) {
 1379: 	return;
 1380:     }
 1381:     my %records=&Apache::lonnet::dump('nohist_email',
 1382: 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
 1383: 			 $env{'course.'.$env{'request.course.id'}.'.num'},
 1384:                          '%255b'.$user.'%253a'.$domain.'%255d');
 1385:     my $result='';
 1386:     foreach (sort(keys(%records))) {
 1387:         my %content=&unpackagemsg($records{$_});
 1388:         next if ($content{'senderdomain'} eq '');
 1389:         next if ($content{'subject'} !~ /^Record/);
 1390: 	# &Apache::lonfeedback::newline_to_br(\$content{'message'});
 1391: 	$result.='Recorded by '.
 1392:             $content{'sendername'}.'@'.$content{'senderdomain'}."\n";
 1393:         $result.=
 1394:             &Apache::lontexconvert::msgtexconverted($content{'message'})."\n";
 1395:      }
 1396:     return $result;
 1397: }
 1398: 
 1399: sub disfacetoface {
 1400:     my ($r,$user,$domain)=@_;
 1401:     my $target=$env{'form.grade_target'};
 1402:     unless ($env{'request.course.id'}) { return; }
 1403:     if  (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1404: 	 && ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1405: 				       '/'.$env{'request.course.sec'})) {
 1406: 	$r->print('Not allowed');
 1407: 	return;
 1408:     }
 1409:     my %records=&Apache::lonnet::dump('nohist_email',
 1410: 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
 1411: 			 $env{'course.'.$env{'request.course.id'}.'.num'},
 1412:                          '%255b'.$user.'%253a'.$domain.'%255d');
 1413:     my $result='';
 1414:     foreach (sort keys %records) {
 1415:         my %content=&unpackagemsg($records{$_});
 1416:         next if ($content{'senderdomain'} eq '');
 1417: 	&Apache::lonfeedback::newline_to_br(\$content{'message'});
 1418:         if ($content{'subject'}=~/^Record/) {
 1419: 	    $result.='<h3>'.&mt('Record').'</h3>';
 1420:         } elsif ($content{'subject'}=~/^Broadcast/) {
 1421:             $result .='<h3>'.&mt('Broadcast Message').'</h3>';
 1422:             if ($content{'subject'}=~/^Broadcast\./) {
 1423:                 %content=&unpackagemsg($content{'message'});
 1424:                 $content{'message'}=
 1425:                     '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
 1426:                     $content{'message'};
 1427:             }    
 1428:         } else {
 1429:             $result.='<h3>'.&mt('Critical Message').'</h3>';
 1430:             %content=&unpackagemsg($content{'message'});
 1431:             $content{'message'}=
 1432:                 '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
 1433: 		$content{'message'};
 1434:         }
 1435:         $result.=&mt('By').': <b>'.
 1436: &Apache::loncommon::aboutmewrapper(
 1437:  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
 1438: $content{'sendername'}.'@'.
 1439:             $content{'senderdomain'}.') '.$content{'time'}.
 1440:             '<br /><pre>'.
 1441:               &Apache::lontexconvert::msgtexconverted($content{'message'}).
 1442: 	      '</pre>';
 1443:      }
 1444:     # Check to see if there were any messages.
 1445:     if ($result eq '') {
 1446: 	if ($target ne 'tex') { 
 1447: 	    $r->print("<p><b>".&mt("No notes, face-to-face discussion records, critical messages, or broadcast messages in this course.")."</b></p>");
 1448: 	} else {
 1449: 	    $r->print('\textbf{'.&mt("No notes, face-to-face discussion records, critical messages or broadcast messages in this course.").'}\\\\');
 1450: 	}
 1451:     } else {
 1452:        $r->print($result);
 1453:     }
 1454: }
 1455: 
 1456: # ---------------------------------------------------------------- Face to face
 1457: 
 1458: sub facetoface {
 1459:     my ($r,$stage)=@_;
 1460:     if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1461: 	&& ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1462: 				      '/'.$env{'request.course.sec'})) {
 1463: 	$r->print('Not allowed');
 1464: 	return;
 1465:     }
 1466:     &printheader($r,
 1467: 		 '/adm/email?recordftf=query',
 1468: 		 "User Notes, Face-to-Face, Critical Messages, Broadcast Messages");
 1469: # from query string
 1470: 
 1471:     if ($env{'form.recname'}) { $env{'form.recuname'}=$env{'form.recname'}; }
 1472:     if ($env{'form.recdom'}) { $env{'form.recdomain'}=$env{'form.recdom'}; }
 1473: 
 1474:     my $defdom=$env{'user.domain'};
 1475: # already filled in
 1476:     if ($env{'form.recdomain'}) { $defdom=$env{'form.recdomain'}; }
 1477: # generate output
 1478:     my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
 1479:     my $stdbrws = &Apache::loncommon::selectstudent_link
 1480: 	('stdselect','recuname','recdomain');
 1481:     my %lt=&Apache::lonlocal::texthash('user' => 'Username',
 1482: 				       'dom' => 'Domain',
 1483: 				       'head' => 'User Notes, Records of Face-To-Face Discussions, Critical Messages, and Broadcast Messages in Course',
 1484: 				       'subm' => 'Retrieve discussion and message records',
 1485: 				       'newr' => 'New Record (record is visible to course faculty and staff)',
 1486: 				       'post' => 'Post this Record');
 1487:     $r->print(<<"ENDTREC");
 1488: <h3>$lt{'head'}</h3>
 1489: <form method="post" action="/adm/email" name="stdselect">
 1490: <input type="hidden" name="recordftf" value="retrieve" />
 1491: <table>
 1492: <tr><td>$lt{'user'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recuname'}" /></td>
 1493: <td rowspan="2">
 1494: $stdbrws
 1495: <input type="submit" value="$lt{'subm'}" /></td>
 1496: </tr>
 1497: <tr><td>$lt{'dom'}:</td>
 1498: <td>$domform</td></tr>
 1499: </table>
 1500: </form>
 1501: ENDTREC
 1502:     if (($stage ne 'query') &&
 1503:         ($env{'form.recdomain'}) && ($env{'form.recuname'})) {
 1504:         chomp($env{'form.newrecord'});
 1505:         if ($env{'form.newrecord'}) {
 1506:            my $recordtxt = $env{'form.newrecord'};
 1507:            &user_normal_msg_raw(
 1508:             $env{'course.'.$env{'request.course.id'}.'.num'},
 1509:             $env{'course.'.$env{'request.course.id'}.'.domain'},
 1510:             &mt('Record').
 1511: 	     ' ['.$env{'form.recuname'}.':'.$env{'form.recdomain'}.']',
 1512: 	    $recordtxt);
 1513:         }
 1514:         $r->print('<h3>'.&Apache::loncommon::plainname($env{'form.recuname'},
 1515: 				     $env{'form.recdomain'}).'</h3>');
 1516:         &disfacetoface($r,$env{'form.recuname'},$env{'form.recdomain'});
 1517: 	$r->print(<<ENDRHEAD);
 1518: <form method="post" action="/adm/email">
 1519: <input name="recdomain" value="$env{'form.recdomain'}" type="hidden" />
 1520: <input name="recuname" value="$env{'form.recuname'}" type="hidden" />
 1521: ENDRHEAD
 1522:         $r->print(<<ENDBFORM);
 1523: <hr />$lt{'newr'}<br />
 1524: <textarea name="newrecord" cols="80" rows="10" wrap="hard"></textarea>
 1525: <br />
 1526: <input type="hidden" name="recordftf" value="post" />
 1527: <input type="submit" value="$lt{'post'}" />
 1528: </form>
 1529: ENDBFORM
 1530:     }
 1531: }
 1532: 
 1533: # ----------------------------------------------------------- Blocking during exams
 1534: 
 1535: sub examblock {
 1536:     my ($r,$action) = @_;
 1537:     unless ($env{'request.course.id'}) { return;}
 1538:     if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1539: 	&& ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1540: 				      '/'.$env{'request.course.sec'})) {
 1541: 	$r->print('Not allowed');
 1542: 	return;
 1543:     }
 1544:     my %lt=&Apache::lonlocal::texthash(
 1545:             'comb' => 'Communication Blocking',
 1546:             'cbds' => 'Communication blocking during scheduled exams',
 1547:             'desc' => 'You can use communication blocking to prevent students enrolled in this course from displaying LON-CAPA messages sent by other students during an online exam. As blocking of communication could potentially interrupt legitimate communication between students who are also both enrolled in a different LON-CAPA course, please be careful that you select the correct start and end times for your scheduled exam when setting or modifying these parameters.',
 1548:              'mecb' => 'Modify existing communication blocking periods',
 1549:              'ncbc' => 'No communication blocks currently stored'
 1550:     );
 1551: 
 1552:     my %ltext = &Apache::lonlocal::texthash(
 1553:             'dura' => 'Duration',
 1554:             'setb' => 'Set by',
 1555:             'even' => 'Event',
 1556:             'actn' => 'Action',
 1557:             'star' => 'Start',
 1558:             'endd' => 'End'
 1559:     );
 1560: 
 1561:     &printheader($r,'/adm/email?block=display',$lt{'comb'});
 1562:     $r->print('<h3>'.$lt{'cbds'}.'</h3>');
 1563: 
 1564:     if ($action eq 'store') {
 1565:         &blockstore($r);
 1566:     }
 1567: 
 1568:     $r->print($lt{'desc'}.'<br /><br />
 1569:                <form name="blockform" method="post" action="/adm/email?block=store">
 1570:              ');
 1571: 
 1572:     $r->print('<h4>'.$lt{'mecb'}.'</h4>');
 1573:     my %records = ();
 1574:     my $blockcount = 0;
 1575:     my $parmcount = 0;
 1576:     &get_blockdates(\%records,\$blockcount);
 1577:     if ($blockcount > 0) {
 1578:         $parmcount = &display_blocker_status($r,\%records,\%ltext);
 1579:     } else {
 1580:         $r->print($lt{'ncbc'}.'<br /><br />');
 1581:     }
 1582:     &display_addblocker_table($r,$parmcount,\%ltext);
 1583:     my $endbody=&Apache::loncommon::endbodytag();
 1584:     $r->print(<<"END");
 1585: <br />
 1586: <input type="hidden" name="blocktotal" value="$blockcount" />
 1587: <input type ="submit" value="Save Changes" />
 1588: </form>
 1589: $endbody
 1590: </html>
 1591: END
 1592:     return;
 1593: }
 1594: 
 1595: sub blockstore {
 1596:     my $r = shift;
 1597:     my %lt=&Apache::lonlocal::texthash(
 1598:             'tfcm' => 'The following changes were made',
 1599:             'cbps' => 'communication blocking period(s)',
 1600:             'werm' => 'was/were removed',
 1601:             'wemo' => 'was/were modified',
 1602:             'wead' => 'was/were added',
 1603:             'ncwm' => 'No changes were made.' 
 1604:     );
 1605:     my %adds = ();
 1606:     my %removals = ();
 1607:     my %cancels = ();
 1608:     my $modtotal = 0;
 1609:     my $canceltotal = 0;
 1610:     my $addtotal = 0;
 1611:     my %blocking = ();
 1612:     $r->print('<h3>'.$lt{'head'}.'</h3>');
 1613:     foreach (keys %env) {
 1614:         if ($_ =~ m/^form\.modify_(\w+)$/) {
 1615:             $adds{$1} = $1;
 1616:             $removals{$1} = $1;
 1617:             $modtotal ++;
 1618:         } elsif ($_ =~ m/^form\.cancel_(\d+)$/) {
 1619:             $cancels{$1} = $1;
 1620:             unless ( defined($removals{$1}) ) {
 1621:                 $removals{$1} = $1;
 1622:                 $canceltotal ++;
 1623:             }
 1624:         } elsif ($_ =~ m/^form\.add_(\d+)$/) {
 1625:             $adds{$1} = $1;
 1626:             $addtotal ++;
 1627:         }
 1628:     }
 1629: 
 1630:     foreach (keys %removals) {
 1631:         my $hashkey = $env{'form.key_'.$_};
 1632:         &Apache::lonnet::del('comm_block',["$hashkey"],
 1633:                          $env{'course.'.$env{'request.course.id'}.'.domain'},
 1634:                          $env{'course.'.$env{'request.course.id'}.'.num'}
 1635:                          );
 1636:     }
 1637:     foreach (keys %adds) {
 1638:         unless ( defined($cancels{$_}) ) {
 1639:             my ($newstart,$newend) = &get_dates_from_form($_);
 1640:             my $newkey = $newstart.'____'.$newend;
 1641:             $blocking{$newkey} = $env{'user.name'}.'@'.$env{'user.domain'}.':'.$env{'form.title_'.$_};
 1642:         }
 1643:     }
 1644:     if ($addtotal + $modtotal > 0) {
 1645:         &Apache::lonnet::put('comm_block',\%blocking,
 1646:                      $env{'course.'.$env{'request.course.id'}.'.domain'},
 1647:                      $env{'course.'.$env{'request.course.id'}.'.num'}
 1648:                      );
 1649:     }
 1650:     my $chgestotal = $canceltotal + $modtotal + $addtotal;
 1651:     if ($chgestotal > 0) {
 1652:         $r->print($lt{'tfcm'}.'<ul>');
 1653:         if ($canceltotal > 0) {
 1654:             $r->print('<li>'.$canceltotal.' '.$lt{'cbps'},' '.$lt{'werm'}.'</li>');
 1655:         }
 1656:         if ($modtotal > 0) {
 1657:             $r->print('<li>'.$modtotal.' '.$lt{'cbps'},' '.$lt{'wemo'}.'</li>');
 1658:         }
 1659:         if ($addtotal > 0) {
 1660:             $r->print('<li>'.$addtotal.' '.$lt{'cbps'},' '.$lt{'wead'}.'</li>');
 1661:         }
 1662:         $r->print('</ul>');
 1663:     } else {
 1664:         $r->print($lt{'ncwm'});
 1665:     }
 1666:     $r->print('<br />');
 1667:     return;
 1668: }
 1669: 
 1670: sub get_dates_from_form {
 1671:     my $item = shift;
 1672:     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$item);
 1673:     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$item);
 1674:     return ($startdate,$enddate);
 1675: }
 1676: 
 1677: sub get_blockdates {
 1678:     my ($records,$blockcount) = @_;
 1679:     $$blockcount = 0;
 1680:     %{$records} = &Apache::lonnet::dump('comm_block',
 1681:                          $env{'course.'.$env{'request.course.id'}.'.domain'},
 1682:                          $env{'course.'.$env{'request.course.id'}.'.num'}
 1683:                          );
 1684:     $$blockcount = keys %{$records};
 1685:                                                                                                              
 1686:     foreach (keys %{$records}) {
 1687:         if ($_ eq 'error: 2 tie(GDBM) Failed while attempting dump') {
 1688:             $$blockcount = 0;
 1689:             last;
 1690:         }
 1691:     }
 1692: }
 1693: 
 1694: sub display_blocker_status {
 1695:     my ($r,$records,$ltext) = @_;
 1696:     my $parmcount = 0;
 1697:     my @bgcols = ("#eeeeee","#dddddd");
 1698:     my $function = &Apache::loncommon::get_users_function();
 1699:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
 1700:                                                     $env{'user.domain'});
 1701:     my %lt = &Apache::lonlocal::texthash(
 1702:         'modi' => 'Modify',
 1703:         'canc' => 'Cancel',
 1704:     );
 1705:     $r->print(<<"END");
 1706: <table border="0" cellpadding="0" cellspacing="0">
 1707:  <tr>
 1708:   <td width="100%" bgcolor="#000000">
 1709:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
 1710:     <tr>
 1711:      <td width="100%" bgcolor="#000000">
 1712:       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
 1713:        <tr bgcolor="$color">
 1714:         <td><b>$$ltext{'dura'}</b></td>
 1715:         <td><b>$$ltext{'setb'}</b></td>
 1716:         <td><b>$$ltext{'even'}</b></td>
 1717:         <td><b>$$ltext{'actn'}?</b></td>
 1718:        </tr>
 1719: END
 1720:     foreach (sort keys %{$records}) {
 1721:         my $iter = $parmcount%2;
 1722:         my $onchange = 'onFocus="javascript:window.document.forms['.
 1723:                        "'blockform'].elements['modify_".$parmcount."'].".
 1724:                        'checked=true;"';
 1725:         my ($start,$end) = split/____/,$_;
 1726:         my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 1727:         my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 1728:         my ($setter,$title) = split/:/,$$records{$_};
 1729:         my ($setuname,$setudom) = split/@/,$setter;
 1730:         my $settername = &Apache::loncommon::plainname($setuname,$setudom);
 1731:         $r->print(<<"END");
 1732:        <tr bgcolor="$bgcols[$iter]">
 1733:         <td>$$ltext{'star'}:&nbsp;$startform<br/>$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
 1734:         <td>$settername</td>
 1735:         <td><input type="text" name="title_$parmcount" size="15" value="$title" /><input type="hidden" name="key_$parmcount" value="$_" /></td>
 1736:         <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>
 1737:        </tr>
 1738: END
 1739:         $parmcount ++;
 1740:     }
 1741:     $r->print(<<"END");
 1742:       </table>
 1743:      </td>
 1744:     </tr>
 1745:    </table>
 1746:   </td>
 1747:  </tr>
 1748: </table>
 1749: <br />
 1750: <br />
 1751: END
 1752:     return $parmcount;
 1753: }
 1754: 
 1755: sub display_addblocker_table {
 1756:     my ($r,$parmcount,$ltext) = @_;
 1757:     my $start = time;
 1758:     my $end = $start + (60 * 60 * 2); #Default is an exam of 2 hours duration.
 1759:     my $onchange = 'onFocus="javascript:window.document.forms['.
 1760:                    "'blockform'].elements['add_".$parmcount."'].".
 1761:                    'checked=true;"';
 1762:     my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 1763:     my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 1764:     my $function = &Apache::loncommon::get_users_function();
 1765:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
 1766:                                                     $env{'user.domain'});
 1767:     my %lt = &Apache::lonlocal::texthash(
 1768:         'addb' => 'Add block',
 1769:         'exam' => 'e.g., Exam 1',
 1770:         'addn' => 'Add new communication blocking periods'
 1771:     );
 1772:     $r->print(<<"END");
 1773: <h4>$lt{'addn'}</h4> 
 1774: <table border="0" cellpadding="0" cellspacing="0">
 1775:  <tr>
 1776:   <td width="100%" bgcolor="#000000">
 1777:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
 1778:     <tr>
 1779:      <td width="100%" bgcolor="#000000">
 1780:       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
 1781:        <tr bgcolor="#CCCCFF">
 1782:         <td><b>$$ltext{'dura'}</b></td>
 1783:         <td><b>$$ltext{'even'} $lt{'exam'}</b></td>
 1784:         <td><b>$$ltext{'actn'}?</b></td>
 1785:        </tr>
 1786:        <tr bgcolor="#eeeeee">
 1787:         <td>$$ltext{'star'}:&nbsp;$startform<br />$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
 1788:         <td><input type="text" name="title_$parmcount" size="15" value="" /></td>
 1789:         <td><label>$lt{'addb'}?&nbsp;<input type="checkbox" name="add_$parmcount" value="1" /></label></td>
 1790:        </tr>
 1791:       </table>
 1792:      </td>
 1793:     </tr>
 1794:    </table>
 1795:   </td>
 1796:  </tr>
 1797: </table>
 1798: END
 1799:     return;
 1800: }
 1801: 
 1802: sub blockcheck {
 1803:     my ($setters,$startblock,$endblock) = @_;
 1804:     # Retrieve active student roles and active course coordinator/instructor roles
 1805:     my @livecses = ();
 1806:     my @staffcses = ();
 1807:     $$startblock = 0;
 1808:     $$endblock = 0;
 1809:     foreach (keys %env) {
 1810:         if ($_ =~ m-^user\.role\.(st|cc|in)\./(.+)$-) {
 1811:             my $role = $1;
 1812:             my $cse = $2;
 1813:             $cse =~ s|/|_|;
 1814:             if ($env{$_} =~ m/^(\d*)\.(\d*)$/) {
 1815:                 unless (($2 > 0 && $2 < time) || ($1 > time)) {
 1816:                     if ($role eq 'st') {
 1817:                         push @livecses, $cse;
 1818:                     } else {
 1819:                         unless (grep/^$cse$/,@staffcses) {
 1820:                             push @staffcses, $cse;
 1821:                         }
 1822:                     }
 1823:                 }
 1824:             }
 1825:         } elsif ($_ =~ m-user\.role\.cr/(\w+)/(\w+)/([^/]+)\./(.+)$- ) { 
 1826:             my $rolepriv = $env{'user.role..rolesdef_'.$3};
 1827:         }
 1828:     }
 1829:     # Retrieve blocking times and identity of blocker for active courses for students.
 1830:     if (@livecses > 0) {
 1831:         foreach my $cse (@livecses) {
 1832:             my ($cdom,$crs) = split/_/,$cse;
 1833:             if ( (grep/^$cse$/,@staffcses) && ($env{'request.role'} !~ m-^st\./$cdom/$crs$-) ) {
 1834:                 next;
 1835:             } else {
 1836:                 %{$$setters{$cse}} = ();
 1837:                 @{$$setters{$cse}{'staff'}} = ();
 1838:                 @{$$setters{$cse}{'times'}} = ();
 1839:                 my %records = &Apache::lonnet::dump('comm_block',$cdom,$crs);
 1840:                 foreach (keys %records) {
 1841:                     if ($_ =~ m/^(\d+)____(\d+)$/) {
 1842:                         if ($1 <= time && $2 >= time) {
 1843:                             my ($staff,$title) = split/:/,$records{$_};
 1844:                             push @{$$setters{$cse}{'staff'}}, $staff;
 1845:                             push @{$$setters{$cse}{'times'}}, $_;
 1846:                             if ( ($$startblock == 0) || ($$startblock > $1) ) {
 1847:                                 $$startblock = $1;
 1848:                             }
 1849:                             if ( ($$endblock == 0) || ($$endblock < $2) ) {
 1850:                                 $$endblock = $2;
 1851:                             }
 1852:                         }
 1853:                     }
 1854:                 }
 1855:             }
 1856:         }
 1857:     }
 1858: }
 1859: 
 1860: sub build_block_table {
 1861:     my ($r,$startblock,$endblock,$setters) = @_;
 1862:     my $function = &Apache::loncommon::get_users_function();
 1863:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
 1864:                                                     $env{'user.domain'});
 1865:     my %lt = &Apache::lonlocal::texthash(
 1866:         'cacb' => 'Currently active communication blocks',
 1867:         'cour' => 'Course',
 1868:         'dura' => 'Duration',
 1869:         'blse' => 'Block set by'
 1870:     ); 
 1871:     $r->print(<<"END");
 1872: <br /<br />$lt{'cacb'}:<br /><br />
 1873: <table border="0" cellpadding="0" cellspacing="0">
 1874:  <tr>
 1875:   <td width="100%" bgcolor="#000000">
 1876:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
 1877:     <tr>
 1878:      <td width="100%" bgcolor="#000000">
 1879:       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
 1880:        <tr bgcolor="$color">
 1881:         <td><b>$lt{'cour'}</b></td>
 1882:         <td><b>$lt{'dura'}</b></td>
 1883:         <td><b>$lt{'blse'}</b></td>
 1884:        </tr>
 1885: END
 1886:     foreach (keys %{$setters}) {
 1887:         my %courseinfo=&Apache::lonnet::coursedescription($_);
 1888:         for (my $i=0; $i<@{$$setters{$_}{staff}}; $i++) {
 1889:             my ($uname,$udom) = split/\@/,$$setters{$_}{staff}[$i];
 1890:             my $fullname = &Apache::loncommon::plainname($uname,$udom);
 1891:             my ($openblock,$closeblock) = split/____/,$$setters{$_}{times}[$i];
 1892:             $openblock = &Apache::lonlocal::locallocaltime($openblock);
 1893:             $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
 1894:             $r->print('<tr><td>'.$courseinfo{'description'}.'</td>'.
 1895:                       '<td>'.$openblock.' to '.$closeblock.'</td>'.
 1896:                       '<td>'.$fullname.' ('.$uname.'@'.$udom.
 1897:                       ')</td></tr>');
 1898:         }
 1899:     }
 1900:     $r->print('</table></td></tr></table></td></tr></table>');
 1901: }
 1902: 
 1903: # ----------------------------------------------------------- Display a message
 1904: 
 1905: sub displaymessage {
 1906:     my ($r,$msgid,$folder)=@_;
 1907:     my $suffix=&foldersuffix($folder);
 1908:     my %blocked = ();
 1909:     my %setters = ();
 1910:     my $startblock = 0;
 1911:     my $endblock = 0;
 1912:     my $numblocked = 0;
 1913: # info to generate "next" and "previous" buttons and check if message is blocked
 1914:     &blockcheck(\%setters,\$startblock,\$endblock);
 1915:     my @messages=&sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder);
 1916:     if ( $blocked{$msgid} eq 'ON' ) {
 1917:         &printheader($r,'/adm/email',&mt('Display a Message'));
 1918:         $r->print(&mt('You attempted to display a message that is currently blocked because you are enrolled in one or more courses for which there is an ongoing online exam.'));
 1919:         &build_block_table($r,$startblock,$endblock,\%setters);
 1920:         return;
 1921:     }
 1922:     &statuschange($msgid,'read',$folder);
 1923:     my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 1924:     my %content=&unpackagemsg($message{$msgid});
 1925: 
 1926:     my $counter=0;
 1927:     $r->print('<pre>');
 1928:     my $escmsgid=&Apache::lonnet::escape($msgid);
 1929:     foreach (@messages) {
 1930: 	if ($_->[5] eq $escmsgid){
 1931: 	    last;
 1932: 	}
 1933: 	$counter++;
 1934:     }
 1935:     $r->print('</pre>');
 1936:     my $number_of_messages = scalar(@messages); #subtract 1 for last index
 1937: # start output
 1938:     &printheader($r,'/adm/email?display='.&Apache::lonnet::escape($msgid),'Display a Message','',$content{'baseurl'});
 1939:     my %courseinfo=&Apache::lonnet::coursedescription($content{'courseid'});
 1940: # Functions
 1941:     $r->print('<table border="2" width="100%"><tr bgcolor="#FFFFAA"><td>'.&mt('Functions').':</td>'.
 1942: 	      '<td><a href="/adm/email?replyto='.&Apache::lonnet::escape($msgid).$sqs.
 1943: 	      '"><b>'.&mt('Reply').'</b></a></td>'.
 1944: 	      '<td><a href="/adm/email?forward='.&Apache::lonnet::escape($msgid).$sqs.
 1945: 	      '"><b>'.&mt('Forward').'</b></a></td>'.
 1946: 	      '<td><a href="/adm/email?markunread='.&Apache::lonnet::escape($msgid).$sqs.
 1947: 	      '"><b>'.&mt('Mark Unread').'</b></a></td>'.
 1948: 	      '<td><a href="/adm/email?markdel='.&Apache::lonnet::escape($msgid).$sqs.
 1949: 	      '"><b>'.&mt('Delete').'</b></a></td>'.
 1950: 	      '<td><a href="/adm/email?'.$sqs.
 1951: 	      ($env{'form.dismode'} eq 'new'?'&folder=new':'').
 1952: 	      '"><b>'.&mt('Back to Folder Display').'</b></a></td>');
 1953:     if ($counter > 0){
 1954: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter-1]->[5].$sqs.
 1955: 		  '"><b>'.&mt('Previous').'</b></a></td>');
 1956:     }
 1957:     if ($counter < $number_of_messages - 1){
 1958: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter+1]->[5].$sqs.
 1959: 		  '"><b>'.&mt('Next').'</b></a></td>');
 1960:     }
 1961:     $r->print('</tr></table>');
 1962:     if ($env{'user.adv'}) {
 1963: 	$r->print('<table border="2" width="100%"><tr bgcolor="#FFAAAA"><td>'.&mt('Currently available actions (will open extra window)').':</td>');
 1964: 	my $symb=&Apache::lonnet::symbread($content{'baseurl'});      
 1965: 	if (&Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
 1966: 		$r->print('<td><b>'.&Apache::loncommon::track_student_link(&mt('View recent activity'),$content{'sendername'},$content{'senderdomain'},'check').'</b></td>');
 1967: 	    }
 1968: 	if (&Apache::lonnet::allowed('opa',$env{'request.course.id'}) && $symb) {
 1969: 	    $r->print('<td><b>'.&Apache::loncommon::pprmlink(&mt('Set/Change parameters'),$content{'sendername'},$content{'senderdomain'},$symb,'check').'</b></td>');
 1970: 	}
 1971: 	if (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}) && $symb) {
 1972: 	    $r->print('<td><b>'.&Apache::loncommon::pgrdlink(&mt('Set/Change grades'),$content{'sendername'},$content{'senderdomain'},$symb,'check').'</b></td>');
 1973: 	}
 1974: 	$r->print('</tr></table>');
 1975:     }
 1976:     my $tolist;
 1977:     my @recipients = ();
 1978:     for (my $i=0; $i<@{$content{'recuser'}}; $i++) {
 1979:         $recipients[$i] =  &Apache::loncommon::aboutmewrapper(
 1980:            &Apache::loncommon::plainname($content{'recuser'}[$i],
 1981:                                       $content{'recdomain'}[$i]),
 1982:               $content{'recuser'}[$i],$content{'recdomain'}[$i]).
 1983:        ' ('.$content{'recuser'}[$i].' at '.$content{'recdomain'}[$i].') ';
 1984:     }
 1985:     $tolist = join(', ',@recipients);
 1986:     $r->print('<br /><b>'.&mt('Subject').':</b> '.$content{'subject'}.
 1987: 	      ($folder ne 'sent'?'<br /><b>'.&mt('From').':</b> '.
 1988: 	      &Apache::loncommon::aboutmewrapper(
 1989: 						 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),
 1990: 						 $content{'sendername'},$content{'senderdomain'}).' ('.
 1991: 	      $content{'sendername'}.' at '.
 1992: 	      $content{'senderdomain'}.') ':'<br /><b>'.&mt('To').':</b> '.
 1993:               $tolist).
 1994: 	      ($content{'courseid'}?'<br /><b>'.&mt('Course').':</b> '.$courseinfo{'description'}.
 1995: 	       ($content{'coursesec'}?' ('.&mt('Group/Section').': '.$content{'coursesec'}.')':''):'').
 1996: 	      '<br /><b>'.&mt('Time').':</b> '.$content{'time'}.
 1997: 	      ($content{'baseurl'}?'<br /><b>'.&mt('Refers to').':</b> <a href="'.$content{'baseurl'}.'">'.
 1998: 	       $content{'baseurl'}.' ('.&Apache::lonnet::gettitle($content{'baseurl'}).')</a>':'').
 1999: 	      '<p><pre>'.
 2000: 	      &Apache::lontexconvert::msgtexconverted($content{'message'},1).
 2001: 	      '</pre><hr />'.&displayresource(%content).'</p>');
 2002:     return;   
 2003: }
 2004: 
 2005: # =========================================================== Show the citation
 2006: 
 2007: sub displayresource {
 2008:     my %content=@_;
 2009: #
 2010: # If the recipient is in the same course that the message was sent from and
 2011: # has sufficient privileges, show "all details," else show citation
 2012: #
 2013:     if (($env{'request.course.id'} eq $content{'courseid'})
 2014:      && (&Apache::lonnet::allowed('vgr',$content{'courseid'}))) {
 2015: 	my $symb=&Apache::lonnet::symbread($content{'baseurl'});
 2016: # Could not get a symb, give up
 2017: 	unless ($symb) { return $content{'citation'}; }
 2018: # Have a symb, can render
 2019: 	return '<h2>'.&mt('Current attempts of student (if applicable)').'</h2>'.
 2020: 	    &Apache::loncommon::get_previous_attempt($symb,
 2021: 						     $content{'sendername'},
 2022: 						     $content{'senderdomain'},
 2023: 						     $content{'courseid'}).
 2024: 	    '<hr /><h2>'.&mt('Current screen output (if applicable)').'</h2>'.
 2025: 	    &Apache::loncommon::get_student_view($symb,
 2026: 						 $content{'sendername'},
 2027: 						 $content{'senderdomain'},
 2028: 						 $content{'courseid'}).
 2029: 	    '<h2>'.&mt('Correct Answer(s) (if applicable)').'</h2>'.
 2030: 	    &Apache::loncommon::get_student_answers($symb,
 2031: 						    $content{'sendername'},
 2032: 						    $content{'senderdomain'},
 2033: 						    $content{'courseid'});
 2034:     } else {
 2035: 	return $content{'citation'};
 2036:     }
 2037: }
 2038: 
 2039: # ================================================================== The Header
 2040: 
 2041: sub header {
 2042:     my ($r,$title,$baseurl)=@_;
 2043:     $r->print(&Apache::lonxml::xmlbegin().
 2044: 	      '<head>'.&Apache::lonxml::fontsettings().
 2045: 	      '<title>Communication and Messages</title>'.
 2046: 	      &Apache::lonhtmlcommon::htmlareaheaders());
 2047:     if ($baseurl) {
 2048: 	$r->print("<base href=\"http://$ENV{'SERVER_NAME'}/$baseurl\" />");
 2049:     }
 2050:     $r->print(&Apache::loncommon::studentbrowser_javascript().'</head>'.
 2051: 	      &Apache::loncommon::bodytag('Communication and Messages'));
 2052:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
 2053:                   (undef,($title?$title:'Communication and Messages')));
 2054: 
 2055: }
 2056: 
 2057: # ---------------------------------------------------------------- Print header
 2058: 
 2059: sub printheader {
 2060:     my ($r,$url,$desc,$title,$baseurl)=@_;
 2061:     &Apache::lonhtmlcommon::add_breadcrumb
 2062: 	({href=>$url,
 2063: 	  text=>$desc});
 2064:     &header($r,$title,$baseurl);
 2065: }
 2066: 
 2067: # ------------------------------------------------------------ Store the comment
 2068: 
 2069: sub storecomment {
 2070:     my ($r)=@_;
 2071:     my $msgtxt=&Apache::lonfeedback::clear_out_html($env{'form.message'});
 2072:     my $cleanmsgtxt='';
 2073:     foreach (split(/[\n\r]/,$msgtxt)) {
 2074: 	unless ($_=~/^\s*(\>|\&gt\;)/) {
 2075: 	    $cleanmsgtxt.=$_."\n";
 2076: 	}
 2077:     }
 2078:     my $key=&Apache::lonnet::escape($env{'form.baseurl'}).'___'.time;
 2079:     &Apache::lonnet::put('nohist_stored_comments',{ $key => $cleanmsgtxt });
 2080: }
 2081: 
 2082: sub storedcommentlisting {
 2083:     my ($r)=@_;
 2084:     my %msgs=&Apache::lonnet::dump('nohist_stored_comments',undef,undef,
 2085:        '^'.&Apache::lonnet::escape(&Apache::lonnet::escape($env{'form.showcommentbaseurl'})));
 2086:     $r->print(&Apache::lonxml::xmlbegin().'<head>'.
 2087: 	      &Apache::lonxml::fontsettings().'</head><body>');
 2088:     if ((keys %msgs)[0]=~/^error\:/) {
 2089: 	$r->print(&mt('No stored comments yet.'));
 2090:     } else {
 2091: 	my $found=0;
 2092: 	foreach (sort keys %msgs) {
 2093: 	    $r->print("\n".$msgs{$_}."<hr />");
 2094: 	    $found=1;
 2095: 	}
 2096: 	unless ($found) {
 2097: 	    $r->print(&mt('No stored comments yet for this resource.'));
 2098: 	}
 2099:     }
 2100: }
 2101: 
 2102: # ---------------------------------------------------------------- Send an email
 2103: 
 2104: sub sendoffmail {
 2105:     my ($r,$folder)=@_;
 2106:     my $suffix=&foldersuffix($folder);
 2107:     my $sendstatus='';
 2108:     my %specialmsg_status;
 2109:     my $numspecial = 0;
 2110:     if ($env{'form.send'}) {
 2111: 	&printheader($r,'','Messages being sent.');
 2112: 	$r->rflush();
 2113: 	my %content=();
 2114: 	undef %content;
 2115: 	if ($env{'form.forwid'}) {
 2116: 	    my $msgid=$env{'form.forwid'};
 2117: 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 2118: 	    %content=&unpackagemsg($message{$msgid},1);
 2119: 	    &statuschange($msgid,'forwarded',$folder);
 2120: 	    $env{'form.message'}.="\n\n-- Forwarded message --\n\n".
 2121: 		$content{'message'};
 2122: 	}
 2123: 	if ($env{'form.replyid'}) {
 2124: 	    my $msgid=$env{'form.replyid'};
 2125: 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 2126: 	    %content=&unpackagemsg($message{$msgid},1);
 2127: 	    &statuschange($msgid,'replied',$folder);
 2128: 	}
 2129: 	my %toaddr=();
 2130: 	undef %toaddr;
 2131: 	if ($env{'form.sendmode'} eq 'group') {
 2132: 	    foreach (keys %env) {
 2133: 		if ($_=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
 2134: 		    $toaddr{$1}='';
 2135: 		}
 2136: 	    }
 2137: 	} elsif ($env{'form.sendmode'} eq 'upload') {
 2138: 	    foreach (split(/[\n\r\f]+/,$env{'form.upfile'})) {
 2139: 		my ($rec,$txt)=split(/\s*\:\s*/,$_);
 2140: 		if ($txt) {
 2141: 		    $rec=~s/\@/\:/;
 2142: 		    $toaddr{$rec}.=$txt."\n";
 2143: 		}
 2144: 	    }
 2145: 	} else {
 2146: 	    $toaddr{$env{'form.recuname'}.':'.$env{'form.recdomain'}}='';
 2147: 	}
 2148: 	if ($env{'form.additionalrec'}) {
 2149: 	    foreach (split(/\,/,$env{'form.additionalrec'})) {
 2150: 		my ($auname,$audom)=split(/\@/,$_);
 2151: 		$toaddr{$auname.':'.$audom}='';
 2152: 	    }
 2153: 	}
 2154: 
 2155:         my $savemsg;
 2156:         my $msgtype;
 2157:         my %sentmessage;
 2158:         if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
 2159:             (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 2160: 	     || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 2161: 					 '/'.$env{'request.course.sec'})
 2162: 	     )) {
 2163:             $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'},1);
 2164:             $msgtype = 'critical';
 2165:         } else {
 2166:             $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'});
 2167:         }
 2168: 	
 2169: 	foreach (keys %toaddr) {
 2170: 	    my ($recuname,$recdomain)=split(/\:/,$_);
 2171:             my $msgtxt = $savemsg;
 2172: 	    if ($toaddr{$_}) { $msgtxt.='<hr />'.$toaddr{$_}; }
 2173: 	    my $thismsg;
 2174: 	    if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) && 
 2175: 		(&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 2176: 		 || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 2177: 					     '/'.$env{'request.course.sec'}))) {
 2178: 		$r->print(&mt('Sending critical message').' '.$recuname.'@'.$recdomain.': ');
 2179: 		$thismsg=&user_crit_msg($recuname,$recdomain,
 2180: 					&Apache::lonfeedback::clear_out_html($env{'form.subject'}),
 2181: 					$msgtxt,
 2182: 					$env{'form.sendbck'},$env{'form.permanent'},\$sentmessage{$_});
 2183: 	    } else {
 2184: 		$r->print(&mt('Sending').' '.$recuname.'@'.$recdomain.': ');
 2185: 		$thismsg=&user_normal_msg($recuname,$recdomain,
 2186: 					  &Apache::lonfeedback::clear_out_html($env{'form.subject'}),
 2187: 					  $msgtxt,
 2188: 					  $content{'citation'},undef,undef,$env{'form.permanent'},\$sentmessage{$_});
 2189:             }
 2190: 	    if (($env{'request.course.id'}) && (($msgtype eq 'critical') || 
 2191:                                          ($env{'form.sendmode'} eq 'group'))) {
 2192: 	        $specialmsg_status{$recuname.':'.$recdomain}  = $thismsg;
 2193:                 if ($thismsg eq 'ok') {
 2194:                     $numspecial ++;
 2195:                 }
 2196: 	    }
 2197: 	    $r->print($thismsg.'<br />');
 2198: 	    $sendstatus.=' '.$thismsg;
 2199: 	}
 2200:         if (($env{'request.course.id'}) && (($env{'form.sendmode'} eq 'group')
 2201:                                               || ($msgtype eq 'critical'))) {
 2202:             my $subj_prefix;
 2203:             if ($msgtype eq 'critical') {
 2204:                 $subj_prefix = 'Critical.';
 2205:             } else {
 2206:                 $subj_prefix = 'Broadcast.';
 2207:             }
 2208:             my ($specialmsgid,$specialresult);
 2209:             my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 2210:             my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2211:             my $course_str = &Apache::lonnet::escape('['.$cnum.':'.$cdom.']');
 2212: 
 2213:             if ($numspecial) {
 2214:                 $specialresult = &user_normal_msg_raw($cnum,$cdom,$subj_prefix.
 2215:                     ' '.$course_str,$savemsg,undef,undef,undef,
 2216:                     undef,undef,\$specialmsgid);
 2217:                 $specialmsgid = &Apache::lonnet::unescape($specialmsgid);
 2218:             }
 2219:             if ($specialresult eq 'ok') {
 2220:                 my $record_sent;
 2221:                 my @recusers = ();
 2222:                 my @recudoms = ();
 2223:                 my ($stamp,$msgsubj,$msgname,$msgdom,$msgcount,$context,$pid) = 
 2224:                             split(/\:/,&Apache::lonnet::unescape($specialmsgid));
 2225:                 foreach my $recipient (sort(keys(%toaddr))) {
 2226:                     if ($specialmsg_status{$recipient} eq 'ok') {
 2227:                         my $usersubj = $subj_prefix.'['.$recipient.']';
 2228:                         my $usermsgid = &buildmsgid($stamp,$usersubj,$msgname,
 2229:                                               $msgdom,$msgcount,$context,$pid);
 2230:                         &user_normal_msg_raw($cnum,$cdom,$subj_prefix.
 2231:                         ' ['.$recipient.']',$sentmessage{$recipient},
 2232:                         undef,undef,undef,undef,$usermsgid);
 2233:                         my ($uname,$udom) = split/:/,$recipient;
 2234:                         push(@recusers,$uname);
 2235:                         push(@recudoms,$udom);
 2236:                     }
 2237:                 }
 2238:                 if (@recusers) {
 2239:                     my $specialmessage;
 2240:                     my $sentsubj = $subj_prefix.' ('.$numspecial.' sent) '.
 2241:                     &Apache::lonfeedback::clear_out_html($env{'form.subject'});
 2242:                     $sentsubj = &HTML::Entities::encode($sentsubj,'<>&"');
 2243:                     my $sentmsgid = &buildmsgid($stamp,$sentsubj,$msgname,
 2244:                                               $msgdom,$msgcount,$context,$pid);
 2245:                     ($specialmsgid,$specialmessage) =
 2246:                          &packagemsg(&Apache::lonfeedback::clear_out_html(
 2247:                              $env{'form.subject'}),$savemsg,undef,undef,undef,
 2248:                                             \@recusers,\@recudoms,$sentmsgid);
 2249:                     $record_sent = &store_sent_mail($specialmsgid,$specialmessage);
 2250:                 }
 2251:             } else {
 2252:                 &Apache::lonnet::logthis('Failed to create record of critical message or broadcast in '.$env{'course.'.$env{'request.course.id'}.'.num'}.' at '.$env{'course.'.$env{'request.course.id'}.'.domain'}.' - no msgid generated');
 2253:             }
 2254:         }
 2255:     } else {
 2256: 	&printheader($r,'','No messages sent.'); 
 2257:     }
 2258:     if ($sendstatus=~/^(\s*(?:ok|con_delayed)\s*)*$/) {
 2259: 	$r->print('<br /><font color="green">'.&mt('Completed.').'</font>');
 2260: 	if ($env{'form.displayedcrit'}) {
 2261: 	    &discrit($r);
 2262: 	} else {
 2263: 	    &Apache::loncommunicate::menu($r);
 2264: 	}
 2265:     } else {
 2266: 	$r->print(
 2267: 		  '<h2><font color="red">'.&mt('Could not deliver message').'</font></h2>'.
 2268: 		  &mt('Please use the browser "Back" button and correct the recipient addresses')
 2269: 		  );
 2270:     }
 2271: }
 2272: 
 2273: # ===================================================================== Handler
 2274: 
 2275: sub handler {
 2276:     my $r=shift;
 2277: 
 2278: # ----------------------------------------------------------- Set document type
 2279:     
 2280:     &Apache::loncommon::content_type($r,'text/html');
 2281:     $r->send_http_header;
 2282:     
 2283:     return OK if $r->header_only;
 2284:     
 2285: # --------------------------- Get query string for limited number of parameters
 2286:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 2287:         ['display','replyto','forward','markread','markdel','markunread',
 2288:          'sendreply','compose','sendmail','critical','recname','recdom',
 2289:          'recordftf','sortedby','block','folder','startdis','interdis',
 2290: 	 'showcommentbaseurl','dismode']);
 2291:     $sqs='&sortedby='.$env{'form.sortedby'};
 2292: 
 2293: # ------------------------------------------------------ They checked for email
 2294:     unless ($env{'form.block'}) {
 2295:         &Apache::lonnet::put('email_status',{'recnewemail'=>0});
 2296:     }
 2297: 
 2298: # ----------------------------------------------------------------- Breadcrumbs
 2299: 
 2300:     &Apache::lonhtmlcommon::clear_breadcrumbs();
 2301:     &Apache::lonhtmlcommon::add_breadcrumb
 2302:         ({href=>"/adm/communicate",
 2303:           text=>"Communication/Messages",
 2304:           faq=>12,bug=>'Communication Tools',});
 2305: 
 2306: # ------------------------------------------------------------------ Get Folder
 2307: 
 2308:     my $folder=$env{'form.folder'};
 2309:     unless ($folder) { 
 2310: 	$folder=''; 
 2311:     } else {
 2312: 	$sqs.='&folder='.&Apache::lonnet::escape($folder);
 2313:     }
 2314: # ------------------------------------------------------------ Get Display Mode
 2315: 
 2316:     my $dismode=$env{'form.dismode'};
 2317:     unless ($dismode) { 
 2318: 	$dismode=''; 
 2319:     } else {
 2320: 	$sqs.='&dismode='.&Apache::lonnet::escape($dismode);
 2321:     }
 2322: 
 2323: # --------------------------------------------------------------------- Display
 2324: 
 2325:     $startdis=$env{'form.startdis'};
 2326:     $startdis--;
 2327:     unless ($startdis) { $startdis=0; }
 2328: 
 2329:     $interdis=$env{'form.interdis'};
 2330:     unless ($interdis) { $interdis=20; }
 2331:     $sqs.='&interdis='.$interdis;
 2332: 
 2333:     if ($env{'form.firstview'}) {
 2334: 	$startdis=0;
 2335:     }
 2336:     if ($env{'form.lastview'}) {
 2337: 	$startdis=-1;
 2338:     }
 2339:     if ($env{'form.prevview'}) {
 2340: 	$startdis--;
 2341:     }
 2342:     if ($env{'form.nextview'}) {
 2343: 	$startdis++;
 2344:     }
 2345:     my $postedstartdis=$startdis+1;
 2346:     $sqs.='&startdis='.$postedstartdis;
 2347: 
 2348: # --------------------------------------------------------------- Render Output
 2349: 
 2350:     if ($env{'form.display'}) {
 2351: 	&displaymessage($r,$env{'form.display'},$folder);
 2352:     } elsif ($env{'form.replyto'}) {
 2353: 	&compout($r,'',$env{'form.replyto'},undef,undef,$folder,$dismode);
 2354:     } elsif ($env{'form.confirm'}) {
 2355: 	&printheader($r,'','Confirmed Receipt');
 2356: 	foreach (keys %env) {
 2357: 	    if ($_=~/^form\.rec\_(.*)$/) {
 2358: 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
 2359: 			  &user_crit_received($1).'<br>');
 2360: 	    }
 2361: 	    if ($_=~/^form\.reprec\_(.*)$/) {
 2362: 		my $msgid=$1;
 2363: 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
 2364: 			  &user_crit_received($msgid).'<br>');
 2365: 		&compout($r,'','','',$msgid);
 2366: 	    }
 2367: 	}
 2368: 	&discrit($r);
 2369:     } elsif ($env{'form.critical'}) {
 2370: 	&printheader($r,'','Displaying Critical Messages');
 2371: 	&discrit($r);
 2372:     } elsif ($env{'form.forward'}) {
 2373: 	&compout($r,$env{'form.forward'},undef,undef,undef,$folder);
 2374:     } elsif ($env{'form.markdel'}) {
 2375: 	&printheader($r,'','Deleted Message');
 2376: 	&statuschange($env{'form.markdel'},'deleted',$folder);
 2377: 	&Apache::loncommunicate::menu($r);
 2378: 	&disall($r,($folder?$folder:$dismode));
 2379:     } elsif ($env{'form.markedmove'}) {
 2380: 	my $total=0;
 2381: 	foreach (keys %env) {
 2382: 	    if ($_=~/^form\.delmark_(.*)$/) {
 2383: 		&movemsg(&Apache::lonnet::unescape($1),$folder,
 2384: 			 $env{'form.movetofolder'});
 2385: 		$total++;
 2386: 	    }
 2387: 	}
 2388: 	&printheader($r,'','Moved Messages');
 2389: 	$r->print('Moved '.$total.' message(s)<p>');
 2390: 	&Apache::loncommunicate::menu($r);
 2391: 	&disall($r,($folder?$folder:$dismode));
 2392:     } elsif ($env{'form.markeddel'}) {
 2393: 	my $total=0;
 2394: 	foreach (keys %env) {
 2395: 	    if ($_=~/^form\.delmark_(.*)$/) {
 2396: 		&statuschange(&Apache::lonnet::unescape($1),'deleted',$folder);
 2397: 		$total++;
 2398: 	    }
 2399: 	}
 2400: 	&printheader($r,'','Deleted Messages');
 2401: 	$r->print('Deleted '.$total.' message(s)<p>');
 2402: 	&Apache::loncommunicate::menu($r);
 2403: 	&disall($r,($folder?$folder:$dismode));
 2404:     } elsif ($env{'form.markunread'}) {
 2405: 	&printheader($r,'','Marked Message as Unread');
 2406: 	&statuschange($env{'form.markunread'},'new');
 2407: 	&Apache::loncommunicate::menu($r);
 2408: 	&disall($r,($folder?$folder:$dismode));
 2409:     } elsif ($env{'form.compose'}) {
 2410: 	&compout($r,'','',$env{'form.compose'});
 2411:     } elsif ($env{'form.recordftf'}) {
 2412: 	&facetoface($r,$env{'form.recordftf'});
 2413:     } elsif ($env{'form.block'}) {
 2414:         &examblock($r,$env{'form.block'});
 2415:     } elsif ($env{'form.sendmail'}) {
 2416: 	&sendoffmail($r,$folder);
 2417: 	if ($env{'form.storebasecomment'}) {
 2418: 	    &storecomment($r);
 2419: 	}
 2420: 	if (($env{'form.rsspost'}) && ($env{'request.course.id'})) {
 2421: 	    &Apache::lonrss::addentry($env{'course.'.$env{'request.course.id'}.'.num'},
 2422: 				      $env{'course.'.$env{'request.course.id'}.'.domain'},
 2423: 				      'Course_Announcements',
 2424: 				      $env{'form.subject'},
 2425: 				      $env{'form.message'},'/adm/communicate','public');
 2426: 	}
 2427: 	&disall($r,($folder?$folder:$dismode));
 2428:     } elsif ($env{'form.newfolder'}) {
 2429: 	&printheader($r,'','New Folder');
 2430: 	&makefolder($env{'form.newfolder'});
 2431: 	&Apache::loncommunicate::menu($r);
 2432: 	&disall($r,$env{'form.newfolder'});
 2433:     } elsif ($env{'form.showcommentbaseurl'}) {
 2434: 	&storedcommentlisting($r);
 2435:     } else {
 2436: 	&printheader($r,'','Display All Messages');
 2437: 	&Apache::loncommunicate::menu($r); 
 2438: 	&disall($r,($folder?$folder:$dismode));
 2439:     }
 2440:     $r->print(&Apache::loncommon::endbodytag().'</html>');
 2441:     return OK;
 2442: }
 2443: # ================================================= Main program, reset counter
 2444: 
 2445: BEGIN {
 2446:     $msgcount=0;
 2447: }
 2448: 
 2449: =pod
 2450: 
 2451: =back
 2452: 
 2453: =cut
 2454: 
 2455: 1; 
 2456: 
 2457: __END__
 2458: 
 2459: 
 2460: 
 2461: 
 2462: 
 2463: 
 2464: 

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