File:  [LON-CAPA] / loncom / interface / lonmsg.pm
Revision 1.103: download - view: text, annotated - select for diffs
Fri Jul 9 21:08:24 2004 UTC (19 years, 10 months ago) by albertel
Branches: MAIN
CVS tags: version_1_2_X, version_1_2_1, version_1_2_0, version_1_1_99_5, version_1_1_99_4, version_1_1_99_3, version_1_1_99_2, HEAD
- stupid %ENV problem again

    1: # The LearningOnline Network with CAPA
    2: # Routines for messaging
    3: #
    4: # $Id: lonmsg.pm,v 1.103 2004/07/09 21:08:24 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 then 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: =head1 FUNCTIONS
  101: 
  102: =over 4
  103: 
  104: =cut
  105: 
  106: use strict;
  107: use Apache::lonnet();
  108: use vars qw($msgcount);
  109: use HTML::TokeParser();
  110: use Apache::Constants qw(:common);
  111: use Apache::loncommon();
  112: use Apache::lontexconvert();
  113: use HTML::Entities();
  114: use Mail::Send;
  115: use Apache::lonlocal;
  116: use Apache::loncommunicate;
  117: 
  118: # Querystring component with sorting type
  119: my $sqs;
  120: 
  121: # ===================================================================== Package
  122: 
  123: sub packagemsg {
  124:     my ($subject,$message,$citation,$baseurl,$attachmenturl)=@_;
  125:     $message =&HTML::Entities::encode($message,'<>&"');
  126:     $citation=&HTML::Entities::encode($citation,'<>&"');
  127:     $subject =&HTML::Entities::encode($subject,'<>&"');
  128:     #remove machine specification
  129:     $baseurl =~ s|^http://[^/]+/|/|;
  130:     $baseurl =&HTML::Entities::encode($baseurl,'<>&"');
  131:     #remove machine specification
  132:     $attachmenturl =~ s|^http://[^/]+/|/|;
  133:     $attachmenturl =&HTML::Entities::encode($attachmenturl,'<>&"');
  134: 
  135:     my $now=time;
  136:     $msgcount++;
  137:     my $partsubj=$subject;
  138:     $partsubj=&Apache::lonnet::escape($partsubj);
  139:     my $msgid=&Apache::lonnet::escape(
  140:            $now.':'.$partsubj.':'.$ENV{'user.name'}.':'.
  141:            $ENV{'user.domain'}.':'.$msgcount.':'.$$);
  142:     my $result='<sendername>'.$ENV{'user.name'}.'</sendername>'.
  143:            '<senderdomain>'.$ENV{'user.domain'}.'</senderdomain>'.
  144:            '<subject>'.$subject.'</subject>'.
  145: 	   '<time>'.&Apache::lonlocal::locallocaltime($now).'</time>'.
  146: 	   '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
  147:            '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
  148: 	   '<client>'.$ENV{'REMOTE_ADDR'}.'</client>'.
  149: 	   '<browsertype>'.$ENV{'browser.type'}.'</browsertype>'.
  150: 	   '<browseros>'.$ENV{'browser.os'}.'</browseros>'.
  151: 	   '<browserversion>'.$ENV{'browser.version'}.'</browserversion>'.
  152:            '<browsermathml>'.$ENV{'browser.mathml'}.'</browsermathml>'.
  153: 	   '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
  154: 	   '<courseid>'.$ENV{'request.course.id'}.'</courseid>'.
  155: 	   '<coursesec>'.$ENV{'request.course.sec'}.'</coursesec>'.
  156: 	   '<role>'.$ENV{'request.role'}.'</role>'.
  157: 	   '<resource>'.$ENV{'request.filename'}.'</resource>'.
  158:            '<msgid>'.$msgid.'</msgid>'.
  159: 	   '<message>'.$message.'</message>';
  160:     if (defined($citation)) {
  161: 	$result.='<citation>'.$citation.'</citation>';
  162:     }
  163:     if (defined($baseurl)) {
  164: 	$result.= '<baseurl>'.$baseurl.'</baseurl>';
  165:     }
  166:     if (defined($attachmenturl)) {
  167: 	$result.= '<attachmenturl>'.$attachmenturl.'</attachmenturl>';
  168:     }
  169:     return $msgid,$result;
  170: }
  171: 
  172: # ================================================== Unpack message into a hash
  173: 
  174: sub unpackagemsg {
  175:     my ($message,$notoken)=@_;
  176:     my %content=();
  177:     my $parser=HTML::TokeParser->new(\$message);
  178:     my $token;
  179:     while ($token=$parser->get_token) {
  180:        if ($token->[0] eq 'S') {
  181: 	   my $entry=$token->[1];
  182:            my $value=$parser->get_text('/'.$entry);
  183:            $content{$entry}=$value;
  184:        }
  185:     }
  186:     if ($content{'attachmenturl'}) {
  187:        my ($fname)=($content{'attachmenturl'}=~m|/([^/]+)$|);
  188:        if ($notoken) {
  189: 	   $content{'message'}.='<p>'.&mt('Attachment').': <tt>'.$fname.'</tt>';
  190:        } else {
  191: 	   &Apache::lonnet::allowuploaded('/adm/msg',
  192: 					  $content{'attachmenturl'});
  193: 	   $content{'message'}.='<p>'.&mt('Attachment').
  194: 	       ': <a href="'.$content{'attachmenturl'}.'"><tt>'.
  195: 	       $fname.'</tt></a>';
  196:        }
  197:     }
  198:     return %content;
  199: }
  200: 
  201: # ======================================================= Get info out of msgid
  202: 
  203: sub unpackmsgid {
  204:     my $msgid=&Apache::lonnet::unescape(shift);
  205:     my ($sendtime,$shortsubj,$fromname,$fromdomain)=split(/\:/,
  206:                           &Apache::lonnet::unescape($msgid));
  207:     my %status=&Apache::lonnet::get('email_status',[$msgid]);
  208:     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
  209:     unless ($status{$msgid}) { $status{$msgid}='new'; }
  210:     return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid});
  211: } 
  212: 
  213: 
  214: sub sendemail {
  215:     my ($to,$subject,$body)=@_;
  216:     $body=
  217:     "*** ".&mt('This is an automatic message generated by the LON-CAPA system.')."\n".
  218:     "*** ".&mt('Please do not reply to this address.')."\n\n".$body;
  219:     my $msg = new Mail::Send;
  220:     $msg->to($to);
  221:     $msg->subject('[LON-CAPA] '.$subject);
  222:     my %oldENV=%ENV;
  223:     undef(%ENV);
  224:     if (my $fh = $msg->open()) {
  225: 	print $fh $body;
  226: 	$fh->close;
  227:     }
  228:     %ENV=%oldENV;
  229:     undef(%oldENV);
  230: }
  231: 
  232: # ==================================================== Send notification emails
  233: 
  234: sub sendnotification {
  235:     my ($to,$touname,$toudom,$subj,$crit)=@_;
  236:     my $sender=$ENV{'environment.firstname'}.' '.$ENV{'environment.lastname'};
  237:     my $critical=($crit?' critical':'');
  238:     my $url='http://'.
  239:       $Apache::lonnet::hostname{&Apache::lonnet::homeserver($touname,$toudom)}.
  240:       '/adm/email?username='.$touname.'&domain='.$toudom;
  241:     my $body=(<<ENDMSG);
  242: You received a$critical message from $sender in LON-CAPA. The subject is
  243: 
  244:  $subj
  245: 
  246: Use
  247: 
  248:  $url
  249: 
  250: to access this message.
  251: ENDMSG
  252:     &sendemail($to,'New'.$critical.' message from '.$sender,$body);
  253: }
  254: # ============================================================= Check for email
  255: 
  256: sub newmail {
  257:     if ((time-$ENV{'user.mailcheck.time'})>300) {
  258:         my %what=&Apache::lonnet::get('email_status',['recnewemail']);
  259:         &Apache::lonnet::appenv('user.mailcheck.time'=>time);
  260:         if ($what{'recnewemail'}>0) { return 1; }
  261:     }
  262:     return 0;
  263: }
  264: 
  265: # =============================== Automated message to the author of a resource
  266: 
  267: =pod
  268: 
  269: =item * B<author_res_msg($filename, $message)>: Sends message $message to the owner
  270:     of the resource with the URI $filename.
  271: 
  272: =cut
  273: 
  274: sub author_res_msg {
  275:     my ($filename,$message)=@_;
  276:     unless ($message) { return 'empty'; }
  277:     $filename=&Apache::lonnet::declutter($filename);
  278:     my ($domain,$author,@dummy)=split(/\//,$filename);
  279:     my $homeserver=&Apache::lonnet::homeserver($author,$domain);
  280:     if ($homeserver ne 'no_host') {
  281:        my $id=unpack("%32C*",$message);
  282:        my $msgid;
  283:        ($msgid,$message)=&packagemsg($filename,$message);
  284:        return &Apache::lonnet::reply('put:'.$domain.':'.$author.
  285:          ':nohist_res_msgs:'.
  286:           &Apache::lonnet::escape($filename.'_'.$id).'='.
  287:           &Apache::lonnet::escape($message),$homeserver);
  288:     }
  289:     return 'no_host';
  290: }
  291: 
  292: # =========================================== Retrieve author resource messages
  293: 
  294: sub retrieve_author_res_msg {
  295:     my $url=shift;
  296:     $url=&Apache::lonnet::declutter($url);
  297:     my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
  298:     my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$domain,$author);
  299:     my $msgs='';
  300:     foreach (keys %errormsgs) {
  301: 	if ($_=~/^\Q$url\E\_\d+$/) {
  302: 	    my %content=&unpackagemsg($errormsgs{$_});
  303: 	    $msgs.='<p><img src="/adm/lonMisc/bomb.gif" /><b>'.
  304: 		$content{'time'}.'</b>: '.$content{'message'}.
  305: 		'<br /></p>';
  306: 	}
  307:     } 
  308:     return $msgs;     
  309: }
  310: 
  311: 
  312: # =============================== Delete all author messages related to one URL
  313: 
  314: sub del_url_author_res_msg {
  315:     my $url=shift;
  316:     $url=&Apache::lonnet::declutter($url);
  317:     my ($domain,$author)=($url=~/^(\w+)\/(\w+)\//);
  318:     my @delmsgs=();
  319:     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
  320: 	if ($_=~/^\Q$url\E\_\d+$/) {
  321: 	    push (@delmsgs,$_);
  322: 	}
  323:     }
  324:     return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
  325: }
  326: 
  327: # ================= Return hash with URLs for which there is a resource message
  328: 
  329: sub all_url_author_res_msg {
  330:     my ($author,$domain)=@_;
  331:     my %returnhash=();
  332:     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
  333: 	$_=~/^(.+)\_\d+/;
  334: 	$returnhash{$1}=1;
  335:     }
  336:     return %returnhash;
  337: }
  338: 
  339: # ================================================== Critical message to a user
  340: 
  341: sub user_crit_msg_raw {
  342:     my ($user,$domain,$subject,$message,$sendback)=@_;
  343: # Check if allowed missing
  344:     my $status='';
  345:     my $msgid='undefined';
  346:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
  347:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
  348:     if ($homeserver ne 'no_host') {
  349:        ($msgid,$message)=&packagemsg($subject,$message);
  350:        if ($sendback) { $message.='<sendback>true</sendback>'; }
  351:        $status=&Apache::lonnet::critical(
  352:            'put:'.$domain.':'.$user.':critical:'.
  353:            &Apache::lonnet::escape($msgid).'='.
  354:            &Apache::lonnet::escape($message),$homeserver);
  355:        if ($ENV{'request.course.id'}) {
  356:           &user_normal_msg_raw(
  357:             $ENV{'course.'.$ENV{'request.course.id'}.'.num'},
  358:             $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
  359:             'Critical ['.$user.':'.$domain.']',
  360: 	    $message);
  361:        }
  362:     } else {
  363:        $status='no_host';
  364:     }
  365: # Notifications
  366:     my %userenv = &Apache::lonnet::get('environment',['critnotification'],
  367:                                        $domain,$user);
  368:     if ($userenv{'critnotification'}) {
  369:       &sendnotification($userenv{'critnotification'},$user,$domain,$subject,1);
  370:     }
  371: # Log this
  372:     &Apache::lonnet::logthis(
  373:       'Sending critical email '.$msgid.
  374:       ', log status: '.
  375:       &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
  376:                          $ENV{'user.home'},
  377:       'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status: '
  378:       .$status));
  379:     return $status;
  380: }
  381: 
  382: # New routine that respects "forward" and calls old routine
  383: 
  384: =pod
  385: 
  386: =item * B<user_crit_msg($user, $domain, $subject, $message, $sendback)>: Sends
  387:     a critical message $message to the $user at $domain. If $sendback is true,
  388:     a reciept will be sent to the current user when $user recieves the message.
  389: 
  390: =cut
  391: 
  392: sub user_crit_msg {
  393:     my ($user,$domain,$subject,$message,$sendback)=@_;
  394:     my $status='';
  395:     my %userenv = &Apache::lonnet::get('environment',['msgforward'],
  396:                                        $domain,$user);
  397:     my $msgforward=$userenv{'msgforward'};
  398:     if ($msgforward) {
  399:        foreach (split(/\,/,$msgforward)) {
  400: 	 my ($forwuser,$forwdomain)=split(/\:/,$_);
  401:          $status.=
  402: 	   &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,
  403:                 $sendback).' ';
  404:        }
  405:     } else { 
  406: 	$status=&user_crit_msg_raw($user,$domain,$subject,$message,$sendback);
  407:     }
  408:     return $status;
  409: }
  410: 
  411: # =================================================== Critical message received
  412: 
  413: sub user_crit_received {
  414:     my $msgid=shift;
  415:     my %message=&Apache::lonnet::get('critical',[$msgid]);
  416:     my %contents=&unpackagemsg($message{$msgid},1);
  417:     my $status='rec: '.($contents{'sendback'}?
  418:      &user_normal_msg($contents{'sendername'},$contents{'senderdomain'},
  419:                      &mt('Receipt').': '.$ENV{'user.name'}.' '.&mt('at').' '.$ENV{'user.domain'}.', '.$contents{'subject'},
  420:                      &mt('User').' '.$ENV{'user.name'}.' '.&mt('at').' '.$ENV{'user.domain'}.
  421:                      ' acknowledged receipt of message'."\n".'   "'.
  422:                      $contents{'subject'}.'"'."\n".&mt('dated').' '.
  423:                      $contents{'time'}.".\n"
  424:                      ):'no msg req');
  425:     $status.=' trans: '.
  426:      &Apache::lonnet::put(
  427:      'nohist_email',{$contents{'msgid'} => $message{$msgid}});
  428:     $status.=' del: '.
  429:      &Apache::lonnet::del('critical',[$contents{'msgid'}]);
  430:     &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
  431:                          $ENV{'user.home'},'Received critical message '.
  432:                          $contents{'msgid'}.
  433:                          ', '.$status);
  434:     return $status;
  435: }
  436: 
  437: # ======================================================== Normal communication
  438: 
  439: sub user_normal_msg_raw {
  440:     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl)=@_;
  441: # Check if allowed missing
  442:     my $status='';
  443:     my $msgid='undefined';
  444:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
  445:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
  446:     if ($homeserver ne 'no_host') {
  447:        ($msgid,$message)=&packagemsg($subject,$message,$citation,$baseurl,
  448:                                      $attachmenturl);
  449:        $status=&Apache::lonnet::critical(
  450:            'put:'.$domain.':'.$user.':nohist_email:'.
  451:            &Apache::lonnet::escape($msgid).'='.
  452:            &Apache::lonnet::escape($message),$homeserver);
  453:        &Apache::lonnet::put
  454:                          ('email_status',{'recnewemail'=>time},$domain,$user);
  455:     } else {
  456:        $status='no_host';
  457:     }
  458: # Notifications
  459:     my %userenv = &Apache::lonnet::get('environment',['notification'],
  460:                                        $domain,$user);
  461:     if ($userenv{'notification'}) {
  462: 	&sendnotification($userenv{'notification'},$user,$domain,$subject,0);
  463:     }
  464:     &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
  465:                          $ENV{'user.home'},
  466:       'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
  467:     return $status;
  468: }
  469: 
  470: # New routine that respects "forward" and calls old routine
  471: 
  472: =pod
  473: 
  474: =item * B<user_normal_msg($user, $domain, $subject, $message,
  475:     $citation, $baseurl, $attachmenturl)>: Sends a message to the
  476:     $user at $domain, with subject $subject and message $message.
  477: 
  478: =cut
  479: 
  480: sub user_normal_msg {
  481:     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl)=@_;
  482:     my $status='';
  483:     my %userenv = &Apache::lonnet::get('environment',['msgforward'],
  484:                                        $domain,$user);
  485:     my $msgforward=$userenv{'msgforward'};
  486:     if ($msgforward) {
  487:        foreach (split(/\,/,$msgforward)) {
  488: 	 my ($forwuser,$forwdomain)=split(/\:/,$_);
  489:          $status.=
  490: 	  &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
  491: 			       $citation,$baseurl,$attachmenturl).' ';
  492:        }
  493:     } else { 
  494: 	$status=&user_normal_msg_raw($user,$domain,$subject,$message,
  495: 				     $citation,$baseurl,$attachmenturl);
  496:     }
  497:     return $status;
  498: }
  499: 
  500: 
  501: # =============================================================== Status Change
  502: 
  503: sub statuschange {
  504:     my ($msgid,$newstatus)=@_;
  505:     my %status=&Apache::lonnet::get('email_status',[$msgid]);
  506:     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
  507:     unless ($status{$msgid}) { $status{$msgid}='new'; }
  508:     unless (($status{$msgid} eq 'replied') || 
  509:             ($status{$msgid} eq 'forwarded')) {
  510: 	&Apache::lonnet::put('email_status',{$msgid => $newstatus});
  511:     }
  512:     if (($newstatus eq 'deleted') || ($newstatus eq 'new')) {
  513: 	&Apache::lonnet::put('email_status',{$msgid => $newstatus});
  514:     }
  515: }
  516: 
  517: # ======================================================= Display a course list
  518: 
  519: sub discourse {
  520:     my $r=shift;
  521:     my %courselist=&Apache::lonnet::dump(
  522:                    'classlist',
  523: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
  524: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
  525:     my $now=time;
  526:     my %lt=&Apache::lonlocal::texthash('cfa' => 'Check for All',
  527:             'cfs' => 'Check for Section/Group',
  528:             'cfn' => 'Check for None');
  529:     $r->print(<<ENDDISHEADER);
  530: <input type="hidden" name="sendmode" value="group" />
  531: <script>
  532:     function checkall() {
  533: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  534:             if 
  535:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  536: 	      document.forms.compemail.elements[i].checked=true;
  537:             }
  538:         }
  539:     }
  540: 
  541:     function checksec() {
  542: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  543:             if 
  544:           (document.forms.compemail.elements[i].name.indexOf
  545:            ('send_to_&&&'+document.forms.compemail.chksec.value)==0) {
  546: 	      document.forms.compemail.elements[i].checked=true;
  547:             }
  548:         }
  549:     }
  550: 
  551:     function uncheckall() {
  552: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  553:             if 
  554:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  555: 	      document.forms.compemail.elements[i].checked=false;
  556:             }
  557:         }
  558:     }
  559: </script>
  560: <input type="button" onClick="checkall()" value="$lt{'cfa'}" />&nbsp;
  561: <input type="button" onClick="checksec()" value="$lt{'cfs'}" />
  562: <input type="text" size="5" name=chksec />&nbsp;
  563: <input type="button" onClick="uncheckall()" value="$lt{'cfn'}" />
  564: <p>
  565: ENDDISHEADER
  566:     my %coursepersonnel=
  567:        &Apache::lonnet::get_course_adv_roles();
  568:     foreach my $role (sort keys %coursepersonnel) {
  569:        foreach (split(/\,/,$coursepersonnel{$role})) {
  570: 	   my ($puname,$pudom)=split(/\:/,$_);
  571: 	   $r->print(
  572:              '<br /><input type="checkbox" name="send_to_&&&&&&_'.
  573:              $puname.':'.$pudom.'" /> '.
  574: 		     &Apache::loncommon::plainname($puname,
  575:                           $pudom).' ('.$_.'), <i>'.$role.'</i>');
  576: 	}
  577:     }
  578: 
  579:     foreach (sort keys %courselist) {
  580:         my ($end,$start)=split(/\:/,$courselist{$_});
  581:         my $active=1;
  582:         if (($end) && ($now>$end)) { $active=0; }
  583:         if ($active) {
  584:            my ($sname,$sdom)=split(/\:/,$_);
  585:            my %reply=&Apache::lonnet::get('environment',
  586:               ['firstname','middlename','lastname','generation'],
  587:               $sdom,$sname);
  588:            my $section=&Apache::lonnet::usection
  589: 	       ($sdom,$sname,$ENV{'request.course.id'});
  590:            $r->print(
  591:         '<br><input type=checkbox name="send_to_&&&'.$section.'&&&_'.$_.'"> '.
  592: 		      $reply{'firstname'}.' '. 
  593:                       $reply{'middlename'}.' '.
  594:                       $reply{'lastname'}.' '.
  595:                       $reply{'generation'}.
  596:                       ' ('.$_.') '.$section);
  597:         } 
  598:     }
  599: }
  600: 
  601: # ==================================================== Display Critical Message
  602: 
  603: sub discrit {
  604:     my $r=shift;
  605:     my $header = '<h1><font color=red>'.&mt('Critical Messages').'</font></h1>'.
  606:         '<form action=/adm/email method=post>'.
  607:         '<input type=hidden name=confirm value=true>';
  608:     my %what=&Apache::lonnet::dump('critical');
  609:     my $result = '';
  610:     foreach (sort keys %what) {
  611:         my %content=&unpackagemsg($what{$_});
  612:         next if ($content{'senderdomain'} eq '');
  613:         $content{'message'}=~s/\n/\<br\>/g;
  614:         $result.='<hr>'.&mt('From').': <b>'.
  615: &Apache::loncommon::aboutmewrapper(
  616:  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
  617: $content{'sendername'}.'@'.
  618:             $content{'senderdomain'}.') '.$content{'time'}.
  619:             '<br>'.&mt('Subject').': '.$content{'subject'}.
  620:             '<br><blockquote>'.
  621:               &Apache::lontexconvert::msgtexconverted($content{'message'}).
  622:             '</blockquote><small>'.
  623: &mt('You have to confirm that you received this message. After confirmation, this message will be moved to your regular inbox').
  624:             '</small><br />'.
  625:             '<input type=submit name="rec_'.$_.'" value="'.&mt('Confirm Receipt').'">'.
  626:             '<input type=submit name="reprec_'.$_.'" '.
  627:                   'value="'.&mt('Confirm Receipt and Reply').'">';
  628:     }
  629:     # Check to see if there were any messages.
  630:     if ($result eq '') {
  631:         $result = "<h2>".&mt('You have no critical messages.')."</h2>".
  632: 	    '<a href="/adm/roles">'.&mt('Select a course').'</a>';
  633:     } else {
  634:         $r->print($header);
  635:     }
  636:     $r->print($result);
  637:     $r->print('<input type=hidden name="displayedcrit" value="true"></form>');
  638: }
  639: 
  640: sub sortedmessages {
  641:     my ($blocked,$startblock,$endblock,$numblocked) = @_;
  642:     my @messages = &Apache::lonnet::getkeys('nohist_email');
  643:     #unpack the varibles and repack into temp for sorting
  644:     my @temp;
  645:     foreach (@messages) {
  646: 	my $msgid=&Apache::lonnet::escape($_);
  647: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status)=
  648: 	    &Apache::lonmsg::unpackmsgid($msgid);
  649: 	my @temp1 = ($sendtime,$shortsubj,$fromname,$fromdomain,$status,
  650: 		     $msgid);
  651:         # Check whether message was sent during blocking period.
  652:         if ($sendtime >= $startblock && ($sendtime <= $endblock && $endblock > 0) ) {
  653:             my $escid = &Apache::lonnet::unescape($msgid);
  654:             $$blocked{$escid} = 'ON';
  655:             $$numblocked ++;
  656:         } else { 
  657:             push @temp ,\@temp1;
  658:         }
  659:     }
  660:     #default sort
  661:     @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  662:     if ($ENV{'form.sortedby'} eq "date"){
  663:         @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  664:     }
  665:     if ($ENV{'form.sortedby'} eq "revdate"){
  666:     	@temp = sort  {$b->[0] <=> $a->[0]} @temp; 
  667:     }
  668:     if ($ENV{'form.sortedby'} eq "user"){
  669: 	@temp = sort  {lc($a->[2]) cmp lc($b->[2])} @temp;
  670:     }
  671:     if ($ENV{'form.sortedby'} eq "revuser"){
  672: 	@temp = sort  {lc($b->[2]) cmp lc($a->[2])} @temp;
  673:     }
  674:     if ($ENV{'form.sortedby'} eq "domain"){
  675:         @temp = sort  {$a->[3] cmp $b->[3]} @temp;
  676:     }
  677:     if ($ENV{'form.sortedby'} eq "revdomain"){
  678:         @temp = sort  {$b->[3] cmp $a->[3]} @temp;
  679:     }
  680:     if ($ENV{'form.sortedby'} eq "subject"){
  681:         @temp = sort  {lc($a->[1]) cmp lc($b->[1])} @temp;
  682:     }
  683:     if ($ENV{'form.sortedby'} eq "revsubject"){
  684:         @temp = sort  {lc($b->[1]) cmp lc($a->[1])} @temp;
  685:     }
  686:     if ($ENV{'form.sortedby'} eq "status"){
  687:         @temp = sort  {$a->[4] cmp $b->[4]} @temp;
  688:     }
  689:     if ($ENV{'form.sortedby'} eq "revstatus"){
  690:         @temp = sort  {$b->[4] cmp $a->[4]} @temp;
  691:     }
  692:     return @temp;
  693: }
  694: 
  695: # ======================================================== Display all messages
  696: 
  697: sub disall {
  698:     my $r=shift;
  699:     my %blocked = ();
  700:     my %setters = ();
  701:     my $startblock;
  702:     my $endblock;
  703:     my $numblocked = 0;
  704:     &blockcheck(\%setters,\$startblock,\$endblock);
  705:     $r->print(<<ENDDISHEADER);
  706: <script>
  707:     function checkall() {
  708: 	for (i=0; i<document.forms.disall.elements.length; i++) {
  709:             if 
  710:           (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
  711: 	      document.forms.disall.elements[i].checked=true;
  712:             }
  713:         }
  714:     }
  715: 
  716:     function uncheckall() {
  717: 	for (i=0; i<document.forms.disall.elements.length; i++) {
  718:             if 
  719:           (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
  720: 	      document.forms.disall.elements[i].checked=false;
  721:             }
  722:         }
  723:     }
  724: </script>
  725: ENDDISHEADER
  726:     $r->print('<h1>'.&mt('Display All Messages').'</h1><form method=post name=disall '.
  727: 	      'action="/adm/email">'.
  728: 	      '<table border=2><tr><th colspan=2>&nbsp</th><th>');
  729:     if ($ENV{'form.sortedby'} eq "revdate") {
  730: 	$r->print('<a href = "?sortedby=date">'.&mt('Date').'</a></th>');
  731:     } else {
  732: 	$r->print('<a href = "?sortedby=revdate">'.&mt('Date').'</a></th>');
  733:     }
  734:     $r->print('<th>');
  735:     if ($ENV{'form.sortedby'} eq "revuser") {
  736: 	$r->print('<a href = "?sortedby=user">'.&mt('Username').'</a>');
  737:     } else {
  738: 	$r->print('<a href = "?sortedby=revuser">'.&mt('Username').'</a>');
  739:     }
  740:     $r->print('</th><th>');
  741:     if ($ENV{'form.sortedby'} eq "revdomain") {
  742: 	$r->print('<a href = "?sortedby=domain">'.&mt('Domain').'</a>');
  743:     } else {
  744: 	$r->print('<a href = "?sortedby=revdomain">'.&mt('Domain').'</a>');
  745:     }
  746:     $r->print('</th><th>');
  747:     if ($ENV{'form.sortedby'} eq "revsubject") {
  748: 	$r->print('<a href = "?sortedby=subject">'.&mt('Subject').'</a>');
  749:     } else {
  750:     	$r->print('<a href = "?sortedby=revsubject">'.&mt('Subject').'</a>');
  751:     }
  752:     $r->print('</th><th>');
  753:     if ($ENV{'form.sortedby'} eq "revstatus") {
  754: 	$r->print('<a href = "?sortedby=status">'.&mt('Status').'</th>');
  755:     } else {
  756:      	$r->print('<a href = "?sortedby=revstatus">'.&mt('Status').'</th>');
  757:     }
  758:     $r->print('</tr>');
  759:     my @temp=sortedmessages(\%blocked,$startblock,$endblock,\$numblocked);
  760:     foreach (@temp){
  761: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$origID)= @$_;
  762: 	if (($status ne 'deleted') && defined($sendtime) && $sendtime!~/error/) {
  763: 	    if ($status eq 'new') {
  764: 		$r->print('<tr bgcolor="#FFBB77">');
  765: 	    } elsif ($status eq 'read') {
  766: 		$r->print('<tr bgcolor="#BBBB77">');
  767: 	    } elsif ($status eq 'replied') {
  768: 		$r->print('<tr bgcolor="#AAAA88">'); 
  769: 	    } else {
  770: 		$r->print('<tr bgcolor="#99BBBB">');
  771: 	    }
  772: 	    $r->print('<td><a href="/adm/email?display='.$origID.$sqs. 
  773: 		      '">'.&mt('Open').'</a></td><td><a href="/adm/email?markdel='.$origID.$sqs.
  774: 		      '">'.&mt('Delete').'</a><input type=checkbox name="delmark_'.$origID.'" /></td>'.
  775: 		      '<td>'.&Apache::lonlocal::locallocaltime($sendtime).'</td><td>'.
  776: 		      $fromname.'</td><td>'.$fromdomain.'</td><td>'.
  777: 		      &Apache::lonnet::unescape($shortsubj).'</td><td>'.
  778:                       $status.'</td></tr>');
  779: 	}
  780:     }   
  781:     $r->print('</table><p>'.
  782:               '<a href="javascript:checkall()">'.&mt('Check All').'</a>&nbsp;'.
  783:               '<a href="javascript:uncheckall()">'.&mt('Uncheck All').'</a><p>'.
  784: 	      '<input type="hidden" name="sortedby" value="'.$ENV{'form.sortedby'}.'" />'.
  785:               '<input type="submit" name="markeddel" value="'.&mt('Delete Checked').'" />'.
  786:               '</form>');
  787:     if ($numblocked > 0) {
  788:         my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
  789:         my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
  790:         $r->print('<br /><br />'.
  791:                   $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.'));
  792:         &build_block_table($r,$startblock,$endblock,\%setters);
  793:     }
  794:     $r->print('</body></html>');
  795: }
  796: 
  797: # ============================================================== Compose output
  798: 
  799: sub compout {
  800:     my ($r,$forwarding,$replying,$broadcast,$replycrit)=@_;
  801: 
  802:     if ($broadcast eq 'individual') {
  803: 	&printheader($r,'/adm/email?compose=individual',
  804: 	     'Send a Message');
  805:     } elsif ($broadcast) {
  806: 	&printheader($r,'/adm/email?compose=group',
  807: 	     'Broadcast Message');
  808:     } elsif ($forwarding) {
  809: 	&Apache::lonhtmlcommon::add_breadcrumb
  810:         ({href=>"/adm/email?display=".&Apache::lonnet::escape($forwarding),
  811:           text=>"Display Message"});
  812: 	&printheader($r,'/adm/email?forward='.&Apache::lonnet::escape($forwarding),
  813: 	     'Forwarding a Message');
  814:     } elsif ($replying) {
  815: 	&Apache::lonhtmlcommon::add_breadcrumb
  816:         ({href=>"/adm/email?display=".&Apache::lonnet::escape($replying),
  817:           text=>"Display Message"});
  818: 	&printheader($r,'/adm/email?replyto='.&Apache::lonnet::escape($replying),
  819: 	     'Replying to a Message');
  820:     } elsif ($replycrit) {
  821: 	$r->print('<h3>'.&mt('Replying to a Critical Message').'</h3>');
  822: 	$replying=$replycrit;
  823:     } else {
  824: 	&printheader($r,'/adm/email?compose=upload',
  825: 	     'Distribute from Uploaded File');
  826:     }
  827: 
  828:     my $dispcrit='';
  829:     my $dissub='';
  830:     my $dismsg='';
  831:     my $func=&mt('Send New');
  832:     my %lt=&Apache::lonlocal::texthash('us' => 'Username',
  833: 				       'do' => 'Domain',
  834: 				       'ad' => 'Additional Recipients',
  835: 				       'sb' => 'Subject',
  836: 				       'ca' => 'Cancel',
  837: 				       'ma' => 'Mail');
  838: 
  839:     if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
  840: 	 my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
  841:          $dispcrit=
  842:  '<input type="checkbox" name="critmsg" /> '.&mt('Send as critical message').' ' . $crithelp . 
  843:  '<br>'.
  844:  '<input type="checkbox" name="sendbck" /> '.&mt('Send as critical message').'  ' .
  845:  &mt('and return receipt') . $crithelp . '<p>';
  846:      }
  847:     my %message;
  848:     my %content;
  849:     my $defdom=$ENV{'user.domain'};
  850:     if ($forwarding) {
  851: 	%message=&Apache::lonnet::get('nohist_email',[$forwarding]);
  852: 	%content=&unpackagemsg($message{$forwarding});
  853: 	$dispcrit.='<input type="hidden" name="forwid" value="'.
  854: 	    $forwarding.'" />';
  855: 	$func=&mt('Forward');
  856: 	
  857: 	$dissub=&mt('Forwarding').': '.$content{'subject'};
  858: 	$dismsg=&mt('Forwarded message from').' '.
  859: 	    $content{'sendername'}.' '.&mt('at').' '.$content{'senderdomain'};
  860:     }
  861:     if ($replying) {
  862: 	%message=&Apache::lonnet::get('nohist_email',[$replying]);
  863: 	%content=&unpackagemsg($message{$replying});
  864: 	$dispcrit.='<input type="hidden" name="forwid" value="'.
  865: 	    $forwarding.'" />';
  866: 	$func=&mt('Replying to');
  867: 	
  868: 	$dissub=&mt('Reply').': '.$content{'subject'};       
  869: 	$dismsg='> '.$content{'message'};
  870: 	$dismsg=~s/\r/\n/g;
  871: 	$dismsg=~s/\f/\n/g;
  872: 	$dismsg=~s/\n+/\n\> /g;
  873:     }
  874:     if ($ENV{'form.recdom'}) { $defdom=$ENV{'form.recdom'}; }
  875:       $r->print(
  876:                 '<form action="/adm/email"  name="compemail" method="post"'.
  877:                 ' enctype="multipart/form-data">'."\n".
  878:                 '<input type="hidden" name="sendmail" value="on" />'."\n".
  879:                 '<table>');
  880:     unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {
  881: 	if ($replying) {
  882: 	    $r->print('<tr><td colspan="2">'.&mt('Replying to').' '.
  883: 		      &Apache::loncommon::aboutmewrapper(
  884: 							 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).' ('.
  885: 		      $content{'sendername'}.'@'.
  886: 		      $content{'senderdomain'}.')'.
  887: 		      '<input type="hidden" name="recuname" value="'.$content{'sendername'}.'" />'.
  888: 		      '<input type="hidden" name="recdomain" value="'.$content{'senderdomain'}.'" />'.
  889: 		      '</td></tr>');
  890: 	} else {
  891: 	    my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
  892: 	    my $selectlink=&Apache::loncommon::selectstudent_link
  893: 	    ('compemail','recuname','recdomain');
  894: 	    $r->print(<<"ENDREC");
  895: <tr><td>$lt{'us'}:</td><td><input type="text" size="12" name="recuname" value="$ENV{'form.recname'}"></td><td rowspan="2">$selectlink</td></tr>
  896: <tr><td>$lt{'do'}:</td>
  897: <td>$domform</td></tr>
  898: ENDREC
  899:         }
  900:     }
  901:     my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
  902:     if ($broadcast ne 'upload') {
  903:        $r->print(<<"ENDCOMP");
  904: <tr><td>$lt{'ad'}<br /><tt>username\@domain,username\@domain, ...
  905: </tt></td><td>
  906: <input type="text" size="50" name="additionalrec" /></td></tr>
  907: <tr><td>$lt{'sb'}:</td><td><input type="text" size="50" name="subject" value="$dissub" />
  908: </td></tr></table>
  909: $latexHelp
  910: <textarea name="message" cols="80" rows="15" wrap="hard">$dismsg
  911: </textarea></p><br />
  912: $dispcrit
  913: <input type="submit" name="send" value="$func $lt{'ma'}" />
  914: <input type="submit" name="cancel" value="$lt{'ca'}" />
  915: ENDCOMP
  916:     } else { # $broadcast is 'upload'
  917: 	$r->print(<<ENDUPLOAD);
  918: <input type="hidden" name="sendmode" value="upload" />
  919: <input type="hidden" name="send" value="on" />
  920: <h3>Generate messages from a file</h3>
  921: <p>
  922: Subject: <input type="text" size="50" name="subject" />
  923: </p>
  924: <p>General message text<br />
  925: <textarea name="message" cols="60" rows="10" wrap="hard">$dismsg
  926: </textarea></p>
  927: <p>
  928: The file format for the uploaded portion of the message is:
  929: <pre>
  930: username1\@domain1: text
  931: username2\@domain2: text
  932: username3\@domain1: text
  933: </pre>
  934: </p>
  935: <p>
  936: The messages will be assembled from all lines with the respective 
  937: <tt>username\@domain</tt>, and appended to the general message text.</p>
  938: <p>
  939: <input type="file" name="upfile" size="40" /></p><p>
  940: $dispcrit
  941: <input type="submit" value="Upload and Send" /></p>
  942: ENDUPLOAD
  943:     }
  944:     if ($broadcast eq 'group') {
  945:        &discourse;
  946:     }
  947:     $r->print('</form>');
  948: }
  949: 
  950: # ---------------------------------------------------- Display all face to face
  951: 
  952: sub disfacetoface {
  953:     my ($r,$user,$domain)=@_;
  954:     my $target=$ENV{'form.grade_target'};
  955:     unless ($ENV{'request.course.id'}) { return; }
  956:     unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
  957: 	return;
  958:     }
  959:     my %records=&Apache::lonnet::dump('nohist_email',
  960: 			 $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
  961: 			 $ENV{'course.'.$ENV{'request.course.id'}.'.num'},
  962:                          '%255b'.$user.'%253a'.$domain.'%255d');
  963:     my $result='';
  964:     foreach (sort keys %records) {
  965:         my %content=&unpackagemsg($records{$_});
  966:         next if ($content{'senderdomain'} eq '');
  967:         $content{'message'}=~s/\n/\<br\>/g;
  968:         if ($content{'subject'}=~/^Record/) {
  969: 	    $result.='<h3>'.&mt('Record').'</h3>';
  970:         } elsif ($content{'subject'}=~/^Broadcast/) {
  971:             $result .='<h3>'.&mt('Broadcast Message').'</h3>';
  972:         } else {
  973:             $result.='<h3>'.&mt('Critical Message').'</h3>';
  974:             %content=&unpackagemsg($content{'message'});
  975:             $content{'message'}=
  976:                 '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
  977: 		$content{'message'};
  978:         }
  979:         $result.=&mt('By').': <b>'.
  980: &Apache::loncommon::aboutmewrapper(
  981:  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
  982: $content{'sendername'}.'@'.
  983:             $content{'senderdomain'}.') '.$content{'time'}.
  984:             '<br /><blockquote>'.
  985:               &Apache::lontexconvert::msgtexconverted($content{'message'}).
  986: 	      '</blockquote>';
  987:      }
  988:     # Check to see if there were any messages.
  989:     if ($result eq '') {
  990: 	if ($target ne 'tex') { 
  991: 	    $r->print("<p><b>".&mt("No notes, face-to-face discussion records, critical messages, or broadcast messages in this course.")."</b></p>");
  992: 	} else {
  993: 	    $r->print('\textbf{'.&mt("No notes, face-to-face discussion records, critical messages or broadcast messages in this course.").'}\\\\');
  994: 	}
  995:     } else {
  996:        $r->print($result);
  997:     }
  998: }
  999: 
 1000: # ---------------------------------------------------------------- Face to face
 1001: 
 1002: sub facetoface {
 1003:     my ($r,$stage)=@_;
 1004:     unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
 1005: 	return;
 1006:     }
 1007:     &printheader($r,
 1008: 		 '/adm/email?recordftf=query',
 1009: 		 "User Notes, Face-to-Face, Critical Messages, Broadcast Messages");
 1010: # from query string
 1011: 
 1012:     if ($ENV{'form.recname'}) { $ENV{'form.recuname'}=$ENV{'form.recname'}; }
 1013:     if ($ENV{'form.recdom'}) { $ENV{'form.recdomain'}=$ENV{'form.recdom'}; }
 1014: 
 1015:     my $defdom=$ENV{'user.domain'};
 1016: # already filled in
 1017:     if ($ENV{'form.recdomain'}) { $defdom=$ENV{'form.recdomain'}; }
 1018: # generate output
 1019:     my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
 1020:     my $stdbrws = &Apache::loncommon::selectstudent_link
 1021: 	('stdselect','recuname','recdomain');
 1022:     my %lt=&Apache::lonlocal::texthash('user' => 'Username',
 1023: 				       'dom' => 'Domain',
 1024: 				       'head' => 'User Notes, Records of Face-To-Face Discussions, Critical Messages, and Broadcast Messages in Course',
 1025: 				       'subm' => 'Retrieve discussion and message records',
 1026: 				       'newr' => 'New Record (record is visible to course faculty and staff)',
 1027: 				       'post' => 'Post this Record');
 1028:     $r->print(<<"ENDTREC");
 1029: <h3>$lt{'head'}</h3>
 1030: <form method="post" action="/adm/email" name="stdselect">
 1031: <input type="hidden" name="recordftf" value="retrieve" />
 1032: <table>
 1033: <tr><td>$lt{'user'}:</td><td><input type="text" size="12" name="recuname" value="$ENV{'form.recuname'}" /></td>
 1034: <td rowspan="2">
 1035: $stdbrws
 1036: <input type="submit" value="$lt{'subm'}" /></td>
 1037: </tr>
 1038: <tr><td>$lt{'dom'}:</td>
 1039: <td>$domform</td></tr>
 1040: </table>
 1041: </form>
 1042: ENDTREC
 1043:     if (($stage ne 'query') &&
 1044:         ($ENV{'form.recdomain'}) && ($ENV{'form.recuname'})) {
 1045:         chomp($ENV{'form.newrecord'});
 1046:         if ($ENV{'form.newrecord'}) {
 1047:            &user_normal_msg_raw(
 1048:             $ENV{'course.'.$ENV{'request.course.id'}.'.num'},
 1049:             $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
 1050:             &mt('Record').
 1051: 	     ' ['.$ENV{'form.recuname'}.':'.$ENV{'form.recdomain'}.']',
 1052: 	    $ENV{'form.newrecord'});
 1053:         }
 1054:         $r->print('<h3>'.&Apache::loncommon::plainname($ENV{'form.recuname'},
 1055: 				     $ENV{'form.recdomain'}).'</h3>');
 1056:         &disfacetoface($r,$ENV{'form.recuname'},$ENV{'form.recdomain'});
 1057: 	$r->print(<<ENDRHEAD);
 1058: <form method="post" action="/adm/email">
 1059: <input name="recdomain" value="$ENV{'form.recdomain'}" type="hidden" />
 1060: <input name="recuname" value="$ENV{'form.recuname'}" type="hidden" />
 1061: ENDRHEAD
 1062:         $r->print(<<ENDBFORM);
 1063: <hr />$lt{'newr'}<br />
 1064: <textarea name="newrecord" cols="80" rows="10" wrap="hard"></textarea>
 1065: <br />
 1066: <input type="hidden" name="recordftf" value="post" />
 1067: <input type="submit" value="$lt{'post'}" />
 1068: </form>
 1069: ENDBFORM
 1070:     }
 1071: }
 1072: 
 1073: # ----------------------------------------------------------- Blocking during exams
 1074: 
 1075: sub examblock {
 1076:     my ($r,$action) = @_;
 1077:     unless ($ENV{'request.course.id'}) { return;}
 1078:     unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) { $r->print('Not allowed'); }
 1079:     my %lt=&Apache::lonlocal::texthash(
 1080:             'comb' => 'Communication Blocking',
 1081:             'cbds' => 'Communication blocking during scheduled exams',
 1082:             '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.',
 1083:              'mecb' => 'Modify existing communication blocking periods',
 1084:              'ncbc' => 'No communication blocks currently stored'
 1085:     );
 1086: 
 1087:     my %ltext = &Apache::lonlocal::texthash(
 1088:             'dura' => 'Duration',
 1089:             'setb' => 'Set by',
 1090:             'even' => 'Event',
 1091:             'actn' => 'Action',
 1092:             'star' => 'Start',
 1093:             'endd' => 'End'
 1094:     );
 1095: 
 1096:     &printheader($r,'/adm/email?block=display',$lt{'comb'});
 1097:     $r->print('<h3>'.$lt{'cbds'}.'</h3>');
 1098: 
 1099:     if ($action eq 'store') {
 1100:         &blockstore($r);
 1101:     }
 1102: 
 1103:     $r->print($lt{'desc'}.'<br /><br />
 1104:                <form name="blockform" method="post" action="/adm/email?block=store">
 1105:              ');
 1106: 
 1107:     $r->print('<h4>'.$lt{'mecb'}.'</h4>');
 1108:     my %records = ();
 1109:     my $blockcount = 0;
 1110:     my $parmcount = 0;
 1111:     &get_blockdates(\%records,\$blockcount);
 1112:     if ($blockcount > 0) {
 1113:         $parmcount = &display_blocker_status($r,\%records,\%ltext);
 1114:     } else {
 1115:         $r->print($lt{'ncbc'}.'<br /><br />');
 1116:     }
 1117:     &display_addblocker_table($r,$parmcount,\%ltext);
 1118:     $r->print(<<"END");
 1119: <br />
 1120: <input type="hidden" name="blocktotal" value="$blockcount" />
 1121: <input type ="submit" value="Save Changes" />
 1122: </form>
 1123: </body>
 1124: </html>
 1125: END
 1126:     return;
 1127: }
 1128: 
 1129: sub blockstore {
 1130:     my $r = shift;
 1131:     my %lt=&Apache::lonlocal::texthash(
 1132:             'tfcm' => 'The following changes were made',
 1133:             'cbps' => 'communication blocking period(s)',
 1134:             'werm' => 'was/were removed',
 1135:             'wemo' => 'was/were modified',
 1136:             'wead' => 'was/were added',
 1137:             'ncwm' => 'No changes were made.' 
 1138:     );
 1139:     my %adds = ();
 1140:     my %removals = ();
 1141:     my %cancels = ();
 1142:     my $modtotal = 0;
 1143:     my $canceltotal = 0;
 1144:     my $addtotal = 0;
 1145:     my %blocking = ();
 1146:     $r->print('<h3>'.$lt{'head'}.'</h3>');
 1147:     foreach (keys %ENV) {
 1148:         if ($_ =~ m/^form\.modify_(\w+)$/) {
 1149:             $adds{$1} = $1;
 1150:             $removals{$1} = $1;
 1151:             $modtotal ++;
 1152:         } elsif ($_ =~ m/^form\.cancel_(\d+)$/) {
 1153:             $cancels{$1} = $1;
 1154:             unless ( defined($removals{$1}) ) {
 1155:                 $removals{$1} = $1;
 1156:                 $canceltotal ++;
 1157:             }
 1158:         } elsif ($_ =~ m/^form\.add_(\d+)$/) {
 1159:             $adds{$1} = $1;
 1160:             $addtotal ++;
 1161:         }
 1162:     }
 1163: 
 1164:     foreach (keys %removals) {
 1165:         my $hashkey = $ENV{'form.key_'.$_};
 1166:         &Apache::lonnet::del('comm_block',["$hashkey"],
 1167:                          $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
 1168:                          $ENV{'course.'.$ENV{'request.course.id'}.'.num'}
 1169:                          );
 1170:     }
 1171:     foreach (keys %adds) {
 1172:         unless ( defined($cancels{$_}) ) {
 1173:             my ($newstart,$newend) = &get_dates_from_form($_);
 1174:             my $newkey = $newstart.'____'.$newend;
 1175:             $blocking{$newkey} = $ENV{'user.name'}.'@'.$ENV{'user.domain'}.':'.$ENV{'form.title_'.$_};
 1176:         }
 1177:     }
 1178:     if ($addtotal + $modtotal > 0) {
 1179:         &Apache::lonnet::put('comm_block',\%blocking,
 1180:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
 1181:                      $ENV{'course.'.$ENV{'request.course.id'}.'.num'}
 1182:                      );
 1183:     }
 1184:     my $chgestotal = $canceltotal + $modtotal + $addtotal;
 1185:     if ($chgestotal > 0) {
 1186:         $r->print($lt{'tfcm'}.'<ul>');
 1187:         if ($canceltotal > 0) {
 1188:             $r->print('<li>'.$canceltotal.' '.$lt{'cbps'},' '.$lt{'werm'}.'</li>');
 1189:         }
 1190:         if ($modtotal > 0) {
 1191:             $r->print('<li>'.$modtotal.' '.$lt{'cbps'},' '.$lt{'wemo'}.'</li>');
 1192:         }
 1193:         if ($addtotal > 0) {
 1194:             $r->print('<li>'.$addtotal.' '.$lt{'cbps'},' '.$lt{'wead'}.'</li>');
 1195:         }
 1196:         $r->print('</ul>');
 1197:     } else {
 1198:         $r->print($lt{'ncwm'});
 1199:     }
 1200:     $r->print('<br />');
 1201:     return;
 1202: }
 1203: 
 1204: sub get_dates_from_form {
 1205:     my $item = shift;
 1206:     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$item);
 1207:     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$item);
 1208:     return ($startdate,$enddate);
 1209: }
 1210: 
 1211: sub get_blockdates {
 1212:     my ($records,$blockcount) = @_;
 1213:     $$blockcount = 0;
 1214:     %{$records} = &Apache::lonnet::dump('comm_block',
 1215:                          $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
 1216:                          $ENV{'course.'.$ENV{'request.course.id'}.'.num'}
 1217:                          );
 1218:     $$blockcount = keys %{$records};
 1219:                                                                                                              
 1220:     foreach (keys %{$records}) {
 1221:         if ($_ eq 'error: 2 tie(GDBM) Failed while attempting dump') {
 1222:             $$blockcount = 0;
 1223:             last;
 1224:         }
 1225:     }
 1226: }
 1227: 
 1228: sub display_blocker_status {
 1229:     my ($r,$records,$ltext) = @_;
 1230:     my $parmcount = 0;
 1231:     my @bgcols = ("#eeeeee","#dddddd");
 1232:     my $function = &Apache::loncommon::get_users_function();
 1233:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
 1234:                                                     $ENV{'user.domain'});
 1235:     my %lt = &Apache::lonlocal::texthash(
 1236:         'modi' => 'Modify',
 1237:         'canc' => 'Cancel',
 1238:     );
 1239:     $r->print(<<"END");
 1240: <table border="0" cellpadding="0" cellspacing="0">
 1241:  <tr>
 1242:   <td width="100%" bgcolor="#000000">
 1243:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
 1244:     <tr>
 1245:      <td width="100%" bgcolor="#000000">
 1246:       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
 1247:        <tr bgcolor="$color">
 1248:         <td><b>$$ltext{'dura'}</b></td>
 1249:         <td><b>$$ltext{'setb'}</b></td>
 1250:         <td><b>$$ltext{'even'}</b></td>
 1251:         <td><b>$$ltext{'actn'}?</b></td>
 1252:        </tr>
 1253: END
 1254:     foreach (sort keys %{$records}) {
 1255:         my $iter = $parmcount%2;
 1256:         my $onchange = 'onFocus="javascript:window.document.forms['.
 1257:                        "'blockform'].elements['modify_".$parmcount."'].".
 1258:                        'checked=true;"';
 1259:         my ($start,$end) = split/____/,$_;
 1260:         my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 1261:         my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 1262:         my ($setter,$title) = split/:/,$$records{$_};
 1263:         my ($setuname,$setudom) = split/@/,$setter;
 1264:         my $settername = &Apache::loncommon::plainname($setuname,$setudom);
 1265:         $r->print(<<"END");
 1266:        <tr bgcolor="$bgcols[$iter]">
 1267:         <td>$$ltext{'star'}:&nbsp;$startform<br/>$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
 1268:         <td>$settername</td>
 1269:         <td><input type="text" name="title_$parmcount" size="15" value="$title"/><input type="hidden" name="key_$parmcount" value="$_"></td>
 1270:         <td>$lt{'modi'}?&nbsp;<input type="checkbox" name="modify_$parmcount"/><br />$lt{'canc'}?&nbsp;&nbsp;<input type="checkbox" name="cancel_$parmcount"/>
 1271:        </tr>
 1272: END
 1273:         $parmcount ++;
 1274:     }
 1275:     $r->print(<<"END");
 1276:       </table>
 1277:      </td>
 1278:     </tr>
 1279:    </table>
 1280:   </td>
 1281:  </tr>
 1282: </table>
 1283: <br />
 1284: <br />
 1285: END
 1286:     return $parmcount;
 1287: }
 1288: 
 1289: sub display_addblocker_table {
 1290:     my ($r,$parmcount,$ltext) = @_;
 1291:     my $start = time;
 1292:     my $end = $start + (60 * 60 * 2); #Default is an exam of 2 hours duration.
 1293:     my $onchange = 'onFocus="javascript:window.document.forms['.
 1294:                    "'blockform'].elements['add_".$parmcount."'].".
 1295:                    'checked=true;"';
 1296:     my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 1297:     my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 1298:     my $function = &Apache::loncommon::get_users_function();
 1299:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
 1300:                                                     $ENV{'user.domain'});
 1301:     my %lt = &Apache::lonlocal::texthash(
 1302:         'addb' => 'Add block',
 1303:         'exam' => 'e.g., Exam 1',
 1304:         'addn' => 'Add new communication blocking periods'
 1305:     );
 1306:     $r->print(<<"END");
 1307: <h4>$lt{'addn'}</h4> 
 1308: <table border="0" cellpadding="0" cellspacing="0">
 1309:  <tr>
 1310:   <td width="100%" bgcolor="#000000">
 1311:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
 1312:     <tr>
 1313:      <td width="100%" bgcolor="#000000">
 1314:       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
 1315:        <tr bgcolor="#CCCCFF">
 1316:         <td><b>$$ltext{'dura'}</b></td>
 1317:         <td><b>$$ltext{'even'} $lt{'exam'}</b></td>
 1318:         <td><b>$$ltext{'actn'}?</b></td>
 1319:        </tr>
 1320:        <tr bgcolor="#eeeeee">
 1321:         <td>$$ltext{'star'}:&nbsp;$startform<br />$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
 1322:         <td><input type="text" name="title_$parmcount" size="15" value=""/></td>
 1323:         <td>$lt{'addb'}?&nbsp;<input type="checkbox" name="add_$parmcount" value="1"/></td>
 1324:        </tr>
 1325:       </table>
 1326:      </td>
 1327:     </tr>
 1328:    </table>
 1329:   </td>
 1330:  </tr>
 1331: </table>
 1332: END
 1333:     return;
 1334: }
 1335: 
 1336: sub blockcheck {
 1337:     my ($setters,$startblock,$endblock) = @_;
 1338:     # Retrieve active student roles and active course coordinator/instructor roles
 1339:     my @livecses = ();
 1340:     my @staffcses = ();
 1341:     $$startblock = 0;
 1342:     $$endblock = 0;
 1343:     foreach (keys %ENV) {
 1344:         if ($_ =~ m-^user\.role\.(st|cc|in)\./(.+)$-) {
 1345:             my $role = $1;
 1346:             my $cse = $2;
 1347:             $cse =~ s|/|_|;
 1348:             if ($ENV{$_} =~ m/^(\d*)\.(\d*)$/) {
 1349:                 unless (($2 > 0 && $2 < time) || ($1 > time)) {
 1350:                     if ($role eq 'st') {
 1351:                         push @livecses, $cse;
 1352:                     } else {
 1353:                         unless (grep/^$cse$/,@staffcses) {
 1354:                             push @staffcses, $cse;
 1355:                         }
 1356:                     }
 1357:                 }
 1358:             }
 1359:         } elsif ($_ =~ m-user\.role\.cr/(\w+)/(\w+)/([^/]+)\./(.+)$- ) { 
 1360:             my $rolepriv = $ENV{'user.role..rolesdef_'.$3};
 1361:         }
 1362:     }
 1363:     # Retrieve blocking times and identity of blocker for active courses for students.
 1364:     if (@livecses > 0) {
 1365:         foreach my $cse (@livecses) {
 1366:             my ($cdom,$crs) = split/_/,$cse;
 1367:             if ( (grep/^$cse$/,@staffcses) && ($ENV{'request.role'} !~ m-^st\./$cdom/$crs$-) ) {
 1368:                 next;
 1369:             } else {
 1370:                 %{$$setters{$cse}} = ();
 1371:                 @{$$setters{$cse}{'staff'}} = ();
 1372:                 @{$$setters{$cse}{'times'}} = ();
 1373:                 my %records = &Apache::lonnet::dump('comm_block',$cdom,$crs);
 1374:                 foreach (keys %records) {
 1375:                     if ($_ =~ m/^(\d+)____(\d+)$/) {
 1376:                         if ($1 <= time && $2 >= time) {
 1377:                             my ($staff,$title) = split/:/,$records{$_};
 1378:                             push @{$$setters{$cse}{'staff'}}, $staff;
 1379:                             push @{$$setters{$cse}{'times'}}, $_;
 1380:                             if ( ($$startblock == 0) || ($$startblock > $1) ) {
 1381:                                 $$startblock = $1;
 1382:                             }
 1383:                             if ( ($$endblock == 0) || ($$endblock < $2) ) {
 1384:                                 $$endblock = $2;
 1385:                             }
 1386:                         }
 1387:                     }
 1388:                 }
 1389:             }
 1390:         }
 1391:     }
 1392: }
 1393: 
 1394: sub build_block_table {
 1395:     my ($r,$startblock,$endblock,$setters) = @_;
 1396:     my $function = &Apache::loncommon::get_users_function();
 1397:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
 1398:                                                     $ENV{'user.domain'});
 1399:     my %lt = &Apache::lonlocal::texthash(
 1400:         'cacb' => 'Currently active communication blocks',
 1401:         'cour' => 'Course',
 1402:         'dura' => 'Duration',
 1403:         'blse' => 'Block set by'
 1404:     ); 
 1405:     $r->print(<<"END");
 1406: <br /<br />$lt{'cacb'}:<br /><br />
 1407: <table border="0" cellpadding="0" cellspacing="0">
 1408:  <tr>
 1409:   <td width="100%" bgcolor="#000000">
 1410:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
 1411:     <tr>
 1412:      <td width="100%" bgcolor="#000000">
 1413:       <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
 1414:        <tr bgcolor="$color">
 1415:         <td><b>$lt{'cour'}</b></td>
 1416:         <td><b>$lt{'dura'}</b></td>
 1417:         <td><b>$lt{'blse'}</b></td>
 1418:        </tr>
 1419: END
 1420:     foreach (keys %{$setters}) {
 1421:         my %courseinfo=&Apache::lonnet::coursedescription($_);
 1422:         for (my $i=0; $i<@{$$setters{$_}{staff}}; $i++) {
 1423:             my ($uname,$udom) = split/\@/,$$setters{$_}{staff}[$i];
 1424:             my $fullname = &Apache::loncommon::plainname($uname,$udom);
 1425:             my ($openblock,$closeblock) = split/____/,$$setters{$_}{times}[$i];
 1426:             $openblock = &Apache::lonlocal::locallocaltime($openblock);
 1427:             $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
 1428:             $r->print('<tr><td>'.$courseinfo{'description'}.'</td>'.
 1429:                       '<td>'.$openblock.' to '.$closeblock.'</td>'.
 1430:                       '<td>'.$fullname.' ('.$uname.'@'.$udom.
 1431:                       ')</td></tr>');
 1432:         }
 1433:     }
 1434:     $r->print('</table></td></tr></table></td></tr></table>');
 1435: }
 1436: 
 1437: # ----------------------------------------------------------- Display a message
 1438: 
 1439: sub displaymessage {
 1440:     my ($r,$msgid)=@_;
 1441:     my %blocked = ();
 1442:     my %setters = ();
 1443:     my $startblock = 0;
 1444:     my $endblock = 0;
 1445:     my $numblocked = 0;
 1446: # info to generate "next" and "previous" buttons and check if message is blocked
 1447:     &blockcheck(\%setters,\$startblock,\$endblock);
 1448:     my @messages=&sortedmessages(\%blocked,$startblock,$endblock,\$numblocked);
 1449:     if ( $blocked{$msgid} eq 'ON' ) {
 1450:         &printheader($r,'/adm/email',&mt('Display a Message'));
 1451:         $r->print(&mt('You attempted to display a message that is currently blocked because you are enrolled in one or more courses for which there is an ongoing online exam.'));
 1452:         &build_block_table($r,$startblock,$endblock,\%setters);
 1453:         return;
 1454:     }
 1455:     &statuschange($msgid,'read');
 1456:     my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
 1457:     my %content=&unpackagemsg($message{$msgid});
 1458:     my $counter=0;
 1459:     $r->print('<pre>');
 1460:     my $escmsgid=&Apache::lonnet::escape($msgid);
 1461:     foreach (@messages) {
 1462: 	if ($_->[5] eq $escmsgid){
 1463: 	    last;
 1464: 	}
 1465: 	$counter++;
 1466:     }
 1467:     $r->print('</pre>');
 1468:     my $number_of_messages = scalar(@messages); #subtract 1 for last index
 1469: # start output
 1470:     &printheader($r,'/adm/email?display='.&Apache::lonnet::escape($msgid),'Display a Message','',$content{'baseurl'});
 1471:     my %courseinfo=&Apache::lonnet::coursedescription($content{'courseid'});
 1472: # Functions
 1473:     $r->print('<table border="2" width="100%"><tr bgcolor="#FFFFAA"><td>'.&mt('Functions').':</td>'.
 1474: 	      '<td><a href="/adm/email?replyto='.&Apache::lonnet::escape($msgid).$sqs.
 1475: 	      '"><b>'.&mt('Reply').'</b></a></td>'.
 1476: 	      '<td><a href="/adm/email?forward='.&Apache::lonnet::escape($msgid).$sqs.
 1477: 	      '"><b>'.&mt('Forward').'</b></a></td>'.
 1478: 	      '<td><a href="/adm/email?markunread='.&Apache::lonnet::escape($msgid).$sqs.
 1479: 	      '"><b>'.&mt('Mark Unread').'</b></a></td>'.
 1480: 	      '<td><a href="/adm/email?markdel='.&Apache::lonnet::escape($msgid).$sqs.
 1481: 	      '"><b>Delete</b></a></td>'.
 1482: 	      '<td><a href="/adm/email?sortedby='.$ENV{'form.sortedby'}.
 1483: 	      '"><b>'.&mt('Display all Messages').'</b></a></td>');
 1484:     if ($counter > 0){
 1485: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter-1]->[5].$sqs.
 1486: 		  '"><b>'.&mt('Previous').'</b></a></td>');
 1487:     }
 1488:     if ($counter < $number_of_messages - 1){
 1489: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter+1]->[5].$sqs.
 1490: 		  '"><b>'.&mt('Next').'</b></a></td>');
 1491:     }
 1492:     $r->print('</tr></table>');
 1493:     $r->print('<br /><b>'.&mt('Subject').':</b> '.$content{'subject'}.
 1494: 	      '<br /><b>'.&mt('From').':</b> '.
 1495: 	      &Apache::loncommon::aboutmewrapper(
 1496: 						 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),
 1497: 						 $content{'sendername'},$content{'senderdomain'}).' ('.
 1498: 	      $content{'sendername'}.' at '.
 1499: 	      $content{'senderdomain'}.') '.
 1500: 	      ($content{'courseid'}?'<br /><b>'.&mt('Course').':</b> '.$courseinfo{'description'}.
 1501: 	       ($content{'coursesec'}?' ('.&mt('Group/Section').': '.$content{'coursesec'}.')':''):'').
 1502: 	      '<br /><b>'.&mt('Time').':</b> '.$content{'time'}.
 1503: 	      '<p><pre>'.
 1504: 	      &Apache::lontexconvert::msgtexconverted($content{'message'},1).
 1505: 	      '</pre><hr />'.$content{'citation'}.'</p>');
 1506:     return;   
 1507: }
 1508: 
 1509: # ================================================================== The Header
 1510: 
 1511: sub header {
 1512:     my ($r,$title,$baseurl)=@_;
 1513:     $r->print('<html><head><title>Communication and Messages</title>');
 1514:     if ($baseurl) {
 1515: 	$r->print("<base href=\"http://$ENV{'SERVER_NAME'}/$baseurl\" />");
 1516:     }
 1517:     $r->print(&Apache::loncommon::studentbrowser_javascript().'</head>'.
 1518: 	      &Apache::loncommon::bodytag('Communication and Messages'));
 1519:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
 1520:                   (undef,($title?$title:'Communication and Messages')));
 1521: 
 1522: }
 1523: 
 1524: # ---------------------------------------------------------------- Print header
 1525: 
 1526: sub printheader {
 1527:     my ($r,$url,$desc,$title,$baseurl)=@_;
 1528:     &Apache::lonhtmlcommon::add_breadcrumb
 1529: 	({href=>$url,
 1530: 	  text=>$desc});
 1531:     &header($r,$title,$baseurl);
 1532: }
 1533: 
 1534: 
 1535: # ===================================================================== Handler
 1536: 
 1537: sub handler {
 1538:     my $r=shift;
 1539: 
 1540: # ----------------------------------------------------------- Set document type
 1541:     
 1542:     &Apache::loncommon::content_type($r,'text/html');
 1543:     $r->send_http_header;
 1544:     
 1545:     return OK if $r->header_only;
 1546:     
 1547: # --------------------------- Get query string for limited number of parameters
 1548:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 1549:         ['display','replyto','forward','markread','markdel','markunread',
 1550:          'sendreply','compose','sendmail','critical','recname','recdom',
 1551:          'recordftf','sortedby','block']);
 1552:     $sqs='&sortedby='.$ENV{'form.sortedby'};
 1553: # ------------------------------------------------------ They checked for email
 1554:     unless ($ENV{'form.block'}) {
 1555:         &Apache::lonnet::put('email_status',{'recnewemail'=>0});
 1556:     }
 1557: 
 1558: # ----------------------------------------------------------------- Breadcrumbs
 1559: 
 1560:     &Apache::lonhtmlcommon::clear_breadcrumbs();
 1561:     &Apache::lonhtmlcommon::add_breadcrumb
 1562:         ({href=>"/adm/communicate",
 1563:           text=>"Communication/Messages",
 1564:           faq=>12,bug=>'Communication Tools',});
 1565: 
 1566: # --------------------------------------------------------------- Render Output
 1567: 
 1568:     if ($ENV{'form.display'}) {
 1569: 	&displaymessage($r,$ENV{'form.display'});
 1570:     } elsif ($ENV{'form.replyto'}) {
 1571: 	&compout($r,'',$ENV{'form.replyto'});
 1572:     } elsif ($ENV{'form.confirm'}) {
 1573: 	&printheader($r,'','Confirmed Receipt');
 1574: 	foreach (keys %ENV) {
 1575: 	    if ($_=~/^form\.rec\_(.*)$/) {
 1576: 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
 1577: 			  &user_crit_received($1).'<br>');
 1578: 	    }
 1579: 	    if ($_=~/^form\.reprec\_(.*)$/) {
 1580: 		my $msgid=$1;
 1581: 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
 1582: 			  &user_crit_received($msgid).'<br>');
 1583: 		&compout($r,'','','',$msgid);
 1584: 	    }
 1585: 	}
 1586: 	&discrit($r);
 1587:     } elsif ($ENV{'form.critical'}) {
 1588: 	&printheader($r,'','Displaying Critical Messages');
 1589: 	&discrit($r);
 1590:     } elsif ($ENV{'form.forward'}) {
 1591: 	&compout($r,$ENV{'form.forward'});
 1592:     } elsif ($ENV{'form.markdel'}) {
 1593: 	&printheader($r,'','Deleted Message');
 1594: 	&statuschange($ENV{'form.markdel'},'deleted');
 1595: 	&disall($r);
 1596:     } elsif ($ENV{'form.markeddel'}) {
 1597: 	my $total=0;
 1598: 	foreach (keys %ENV) {
 1599: 	    if ($_=~/^form\.delmark_(.*)$/) {
 1600: 		&statuschange(&Apache::lonnet::unescape($1),'deleted');
 1601: 		$total++;
 1602: 	    }
 1603: 	}
 1604: 	&printheader($r,'','Deleted Messages');
 1605: 	$r->print('Deleted '.$total.' message(s)<p>');
 1606: 	&disall($r);
 1607:     } elsif ($ENV{'form.markunread'}) {
 1608: 	&printheader($r,'','Marked Message as Unread');
 1609: 	&statuschange($ENV{'form.markunread'},'new');
 1610: 	&disall($r);
 1611:     } elsif ($ENV{'form.compose'}) {
 1612: 	&compout($r,'','',$ENV{'form.compose'});
 1613:     } elsif ($ENV{'form.recordftf'}) {
 1614: 	&facetoface($r,$ENV{'form.recordftf'});
 1615:     } elsif ($ENV{'form.block'}) {
 1616:         &examblock($r,$ENV{'form.block'});
 1617:     } elsif ($ENV{'form.sendmail'}) {
 1618: 	my $sendstatus='';
 1619: 	if ($ENV{'form.send'}) {
 1620: 	    &printheader($r,'','Messages being sent.');
 1621: 	    $r->rflush();
 1622: 	    my %content=();
 1623: 	    undef %content;
 1624: 	    if ($ENV{'form.forwid'}) {
 1625: 		my $msgid=$ENV{'form.forwid'};
 1626: 		my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
 1627: 		%content=&unpackagemsg($message{$msgid},1);
 1628: 		&statuschange($msgid,'forwarded');
 1629: 		$ENV{'form.message'}.="\n\n-- Forwarded message --\n\n".
 1630: 		    $content{'message'};
 1631: 	    }
 1632: 	    my %toaddr=();
 1633: 	    undef %toaddr;
 1634: 	    if ($ENV{'form.sendmode'} eq 'group') {
 1635: 		foreach (keys %ENV) {
 1636: 		    if ($_=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
 1637: 			$toaddr{$1}='';
 1638: 		    }
 1639: 		}
 1640: 	    } elsif ($ENV{'form.sendmode'} eq 'upload') {
 1641: 		foreach (split(/[\n\r\f]+/,$ENV{'form.upfile'})) {
 1642: 		    my ($rec,$txt)=split(/\s*\:\s*/,$_);
 1643: 		    if ($txt) {
 1644: 			$rec=~s/\@/\:/;
 1645: 			$toaddr{$rec}.=$txt."\n";
 1646: 		    }
 1647: 		}
 1648: 	    } else {
 1649: 		$toaddr{$ENV{'form.recuname'}.':'.$ENV{'form.recdomain'}}='';
 1650: 	    }
 1651: 	    if ($ENV{'form.additionalrec'}) {
 1652: 		foreach (split(/\,/,$ENV{'form.additionalrec'})) {
 1653: 		    my ($auname,$audom)=split(/\@/,$_);
 1654: 		    $toaddr{$auname.':'.$audom}='';
 1655: 		}
 1656: 	    }
 1657: 
 1658: 	    foreach (keys %toaddr) {
 1659: 		my ($recuname,$recdomain)=split(/\:/,$_);
 1660: 		my $msgtxt=&Apache::lonfeedback::clear_out_html($ENV{'form.message'});
 1661: 		if ($toaddr{$_}) { $msgtxt.='<hr />'.$toaddr{$_}; }
 1662: 		my $thismsg;    
 1663: 		if ((($ENV{'form.critmsg'}) || ($ENV{'form.sendbck'})) && 
 1664: 		    (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
 1665: 		    $r->print(&mt('Sending critical message').' '.$recuname.'@'.$recdomain.': ');
 1666: 		    $thismsg=&user_crit_msg($recuname,$recdomain,
 1667: 						    &Apache::lonfeedback::clear_out_html($ENV{'form.subject'}),
 1668: 						    $msgtxt,
 1669: 						    $ENV{'form.sendbck'});
 1670: 		} else {
 1671: 		    $r->print(&mt('Sending').' '.$recuname.'@'.$recdomain.': ');
 1672: 		    $thismsg=&user_normal_msg($recuname,$recdomain,
 1673: 						      &Apache::lonfeedback::clear_out_html($ENV{'form.subject'}),
 1674: 						      $msgtxt,
 1675: 						      $content{'citation'});
 1676:                     if (($ENV{'request.course.id'}) && ($ENV{'form.sendmode'} eq 'group')) {
 1677:                         &user_normal_msg_raw(
 1678:                         $ENV{'course.'.$ENV{'request.course.id'}.'.num'},
 1679:                         $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
 1680:                         'Broadcast ['.$recuname.':'.$recdomain.']',
 1681:                         $msgtxt);
 1682:                     }
 1683: 		}
 1684: 		$r->print($thismsg.'<br />');
 1685: 		$sendstatus.=' '.$thismsg;
 1686: 	    }
 1687: 	} else {
 1688: 	    &printheader($r,'','No messages sent.'); 
 1689: 	}
 1690: 	if ($sendstatus=~/^(\s*(?:ok|con_delayed)\s*)*$/) {
 1691: 	    $r->print('<br /><font color="green">'.&mt('Completed.').'</font>');
 1692: 	    if ($ENV{'form.displayedcrit'}) {
 1693: 		&discrit($r);
 1694: 	    } else {
 1695: 		&Apache::loncommunicate::menu($r);
 1696: 	    }
 1697: 	} else {
 1698: 	    $r->print(
 1699: 		      '<h2><font color="red">'.&mt('Could not deliver message').'</font></h2>'.
 1700: 		      &mt('Please use the browser "Back" button and correct the recipient addresses')
 1701: 		      );
 1702: 	}
 1703:     } else {
 1704: 	&printheader($r,'','Display All Messages');
 1705: 	&disall($r);
 1706:     }
 1707:     $r->print('</body></html>');
 1708:     return OK;
 1709: }
 1710: # ================================================= Main program, reset counter
 1711: 
 1712: BEGIN {
 1713:     $msgcount=0;
 1714: }
 1715: 
 1716: =pod
 1717: 
 1718: =back
 1719: 
 1720: =cut
 1721: 
 1722: 1; 
 1723: 
 1724: __END__
 1725: 
 1726: 
 1727: 
 1728: 
 1729: 
 1730: 
 1731: 

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