File:  [LON-CAPA] / loncom / interface / lonmsgdisplay.pm
Revision 1.20: download - view: text, annotated - select for diffs
Mon May 1 05:57:26 2006 UTC (18 years ago) by raeburn
Branches: MAIN
CVS tags: HEAD
Can select message recipients based on group affiliation.

    1: # The LearningOnline Network with CAPA
    2: # Routines for messaging display
    3: #
    4: # $Id: lonmsgdisplay.pm,v 1.20 2006/05/01 05:57:26 raeburn 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::lonmsgdisplay;
   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 HTML::TokeParser();
  120: use Apache::Constants qw(:common);
  121: use Apache::loncommon();
  122: use Apache::lontexconvert();
  123: use HTML::Entities();
  124: use Apache::lonlocal;
  125: use Apache::loncommunicate;
  126: use Apache::lonfeedback;
  127: use Apache::lonrss();
  128: 
  129: # Querystring component with sorting type
  130: my $sqs;
  131: my $startdis;
  132: my $interdis;
  133: 
  134: # ============================================================ List all folders
  135: 
  136: sub folderlist {
  137:     my $folder=shift;
  138:     my @allfolders=&Apache::lonnet::getkeys('email_folders');
  139:     if ($allfolders[0]=~/^error:/) { @allfolders=(); }
  140:     return '<form method="post" action="/adm/email">'.
  141: 	&mt('Folder').': '.
  142: 	&Apache::loncommon::select_form($folder,'folder',
  143: 			     ('' => &mt('INBOX'),'trash' => &mt('TRASH'),
  144: 			      'new' => &mt('New Messages Only'),
  145:                               'critical' => &mt('Critical'),
  146: 			      'sent' => &mt('Sent Messages'),
  147: 			      map { $_ => $_ } @allfolders)).
  148: 			      ' '.&mt('Show').
  149: 			      '<select name="interdis">'.
  150: 			      join("\n",map { '<option value="'.$_.'"'.
  151: 	 ($_==$interdis?' selected="selected"':'').'>'.$_.'</option>' }
  152: 				   (10,20,50,100,200)).'</select>'.	
  153:    '<input type="submit" value="'.&mt('View Folder').'" /><br />'.
  154:     '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />'.
  155: 			      ($folder=~/^(new|critical)/?'</form>':'');
  156: }
  157: 
  158: sub scrollbuttons {
  159:     my ($start,$maxdis,$first,$finish,$total)=@_;
  160:     unless ($total>0) { return ''; }
  161:     $start++; $maxdis++;$first++;$finish++;
  162:     return
  163:    &mt('Page').': '. 
  164:    '<input type="submit" name="firstview" value="'.&mt('First').'" />'.
  165:    '<input type="submit" name="prevview" value="'.&mt('Previous').'" />'.
  166:    '<input type="text" size="5" name="startdis" value="'.$start.'" onChange="this.form.submit()" /> of '.$maxdis.
  167:    '<input type="submit" name="nextview" value="'.&mt('Next').'" />'.
  168:    '<input type="submit" name="lastview" value="'.&mt('Last').'" /><br />'.
  169:    &mt('Showing messages [_1] through [_2] of [_3]',$first,$finish,$total).'</form>';
  170: }
  171: # =============================================================== Status Change
  172: 
  173: sub statuschange {
  174:     my ($msgid,$newstatus,$folder)=@_;
  175:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
  176:     my %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
  177:     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
  178:     unless ($status{$msgid}) { $status{$msgid}='new'; }
  179:     unless (($status{$msgid} eq 'replied') || 
  180:             ($status{$msgid} eq 'forwarded')) {
  181: 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
  182:     }
  183:     if (($newstatus eq 'deleted') || ($newstatus eq 'new')) {
  184: 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
  185:     }
  186:     if ($newstatus eq 'deleted') {
  187: 	return &movemsg($msgid,$folder,'trash');
  188:     }
  189:     return ;
  190: }
  191: 
  192: # ============================================================= Make new folder
  193: 
  194: sub makefolder {
  195:     my ($newfolder)=@_;
  196:     if (($newfolder eq 'sent')
  197:      || ($newfolder eq 'critical')
  198:      || ($newfolder eq 'trash')
  199:      || ($newfolder eq 'new')) { return; }
  200:     &Apache::lonnet::put('email_folders',{$newfolder => time});
  201: }
  202: 
  203: # ======================================================== Move between folders
  204: 
  205: sub movemsg {
  206:     my ($msgid,$srcfolder,$trgfolder)=@_;
  207:     if ($srcfolder eq 'new') { $srcfolder=''; }
  208:     my $srcsuffix=&Apache::lonmsg::foldersuffix($srcfolder);
  209:     my $trgsuffix=&Apache::lonmsg::foldersuffix($trgfolder);
  210:     if ($srcsuffix eq $trgsuffix) {
  211: 	return (0,&mt('Message not moved, Attempted to move message to the same folder as it already is in.'));
  212:     }
  213: 
  214: # Copy message
  215:     my %message=&Apache::lonnet::get('nohist_email'.$srcsuffix,[$msgid]);
  216:     if (!exists($message{$msgid}) || $message{$msgid} eq '') {
  217: 	if (&Apache::slotrequest::network_error(%message)) {
  218: 	    return (0,&mt('Message not moved, A network error occurred.'));
  219: 	} else {
  220: 	    return (0,&mt('Message not moved as the message is no longer in the source folder.'));
  221: 	}
  222:     }
  223: 
  224:     my $result =&Apache::lonnet::put('nohist_email'.$trgsuffix,
  225: 				     {$msgid => $message{$msgid}});
  226:     if (&Apache::slotrequest::network_error($result)) {
  227: 	return (0,&mt('Message not moved, A network error occurred.'));
  228:     }
  229: 
  230: # Copy status
  231:     unless ($trgfolder eq 'trash') {
  232:        	my %status=&Apache::lonnet::get('email_status'.$srcsuffix,[$msgid]);
  233: 	# a non-existant status is the mark of an unread msg
  234: 	if (&Apache::slotrequest::network_error(%status)) {
  235: 	    return (0,&mt('Message copied to new folder but status was not, A network error occurred.'));
  236: 	}
  237: 	my $result=&Apache::lonnet::put('email_status'.$trgsuffix,
  238: 					{$msgid => $status{$msgid}});
  239: 	if (&Apache::slotrequest::network_error($result)) {
  240: 	    return (0,&mt('Message copied to new folder but status was not, A network error occurred.'));
  241: 	}
  242:     }
  243: 
  244: # Delete orginals
  245:     my $result_del_msg = 
  246: 	&Apache::lonnet::del('nohist_email'.$srcsuffix,[$msgid]);
  247:     my $result_del_stat =
  248: 	&Apache::lonnet::del('email_status'.$srcsuffix,[$msgid]);
  249:     if (&Apache::slotrequest::network_error($result_del_msg)) {
  250: 	return (0,&mt('Message copied, but unable to delete the original from the source folder.'));
  251:     }
  252:     if (&Apache::slotrequest::network_error($result_del_stat)) {
  253: 	return (0,&mt('Message copied, but unable to delete the original status from the source folder.'));
  254:     }
  255: 
  256:     return (1);
  257: }
  258: 
  259: # ======================================================= Display a course list
  260: 
  261: sub discourse {
  262:     my $r=shift;
  263:     my $classlist = &Apache::loncoursedata::get_classlist();
  264:     my ($classgroups,$studentgroups) = 
  265:             &Apache::loncoursedata::get_group_memberships($classlist);
  266:     my %lt=&Apache::lonlocal::texthash('cfa' => 'Check All',
  267:             'cfs' => 'Check Section/Group',
  268:             'cfn' => 'Uncheck All');
  269:     if (defined($env{'form.group'})) {
  270:         $r->print('<input type="hidden" name="group" value="'.
  271:                   $env{'form.group'}.'" />'."\n");
  272:     }
  273:     $r->print(<<ENDDISHEADER);
  274: <input type="hidden" name="sendmode" value="group" />
  275: <script pe="text/javascript">
  276:     function checkall() {
  277: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  278:             if 
  279:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  280: 	      document.forms.compemail.elements[i].checked=true;
  281:             }
  282:         }
  283:     }
  284: 
  285:     function checksec() {
  286: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  287:             if 
  288:           (document.forms.compemail.elements[i].name.indexOf
  289:            ('send_to_&&&'+document.forms.compemail.chksec.value+'&&&')==0) {
  290: 	      document.forms.compemail.elements[i].checked=true;
  291:             }
  292:             if
  293:           (document.forms.compemail.elements[i].name.indexOf
  294:            ('group_&&&'+document.forms.compemail.chksec.value+'&&&_')==0) {
  295:               var count = i - document.forms.compemail.elements[i].value;
  296:               document.forms.compemail.elements[count].checked=true;
  297:             }
  298:         }
  299:     }
  300: 
  301:     function uncheckall() {
  302: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  303:             if 
  304:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  305: 	      document.forms.compemail.elements[i].checked=false;
  306:             }
  307:         }
  308:     }
  309: </script>
  310: <input type="button" onClick="checkall()" value="$lt{'cfa'}" />&nbsp;
  311: <input type="button" onClick="checksec()" value="$lt{'cfs'}" />
  312: <input type="text" size="15" name="chksec" value="$env{'form.group'}" />&nbsp;
  313: <input type="button" onClick="uncheckall()" value="$lt{'cfn'}" />
  314: <p>
  315: ENDDISHEADER
  316:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles();
  317:     $r->print(&Apache::loncommon::start_data_table());
  318:     if (keys(%coursepersonnel) > 0) {
  319:         $r->print('<h3>Non-students</h3>');
  320:         $r->print(&Apache::loncommon::start_data_table());
  321:         $r->print(&Apache::loncommon::start_data_table_row());
  322:         $r->print('<th>Name</th><th>Username:Domain</th><th>Role</th>');
  323:         $r->print(&Apache::loncommon::end_data_table_row());
  324:         foreach my $role (sort keys %coursepersonnel) {
  325:             foreach (split(/\,/,$coursepersonnel{$role})) {
  326:                 my ($puname,$pudom)=split(/\:/,$_);
  327:                 $r->print(&Apache::loncommon::start_data_table_row());
  328:                 $r->print('<td><label>'.
  329:                           '<input type="checkbox" name="send_to_&&&&&&_'.
  330:                           $puname.':'.$pudom.'" /> '.
  331:                           &Apache::loncommon::plainname($puname,$pudom).
  332:                           '</label></td>'.
  333:                           '<td>('.$_.'),</td><td><i>'.$role.'</i></td>');
  334:                 $r->print(&Apache::loncommon::end_data_table_row());
  335:             }
  336:         }
  337:         $r->print(&Apache::loncommon::end_data_table());
  338:     }
  339:     if (keys(%{$classlist}) > 0) {
  340:         $r->print('<h3>Students</h3>');
  341:         $r->print(&Apache::loncommon::start_data_table());
  342:         $r->print(&Apache::loncommon::start_data_table_row());
  343:         $r->print('<th>Name</th><th>Username:Domain</th><th>Section</th><th>Groups</th>');
  344:         $r->print(&Apache::loncommon::end_data_table_row());
  345:         my $sort = sub {
  346: 	    my $aname=lc($classlist->{$a}[&Apache::loncoursedata::CL_FULLNAME()]);
  347: 	    if (!$aname) { $aname=$a; }
  348: 	    my $bname=lc($classlist->{$b}[&Apache::loncoursedata::CL_FULLNAME()]);
  349: 	    if (!$bname) { $bname=$b; }
  350: 	    return $aname cmp $bname;
  351:         };
  352:         foreach my $student (sort $sort (keys(%{$classlist}))) {
  353: 	    my $info=$classlist->{$student};
  354:             my ($sname,$sdom,$status,$fullname,$section) =
  355:                 (@{$info}[&Apache::loncoursedata::CL_SNAME(),
  356:                           &Apache::loncoursedata::CL_SDOM(),
  357:                           &Apache::loncoursedata::CL_STATUS(),
  358:                           &Apache::loncoursedata::CL_FULLNAME(),
  359:                           &Apache::loncoursedata::CL_SECTION()]);
  360:             next if ($status ne 'Active');
  361: 	    next if ($env{'request.course.sec'} &&
  362: 		     $section ne $env{'request.course.sec'});
  363:             my @studentsgroups = &Apache::loncoursedata::get_students_groups(
  364:                                                $student,$status,$classgroups);
  365:             my $grouplist = join(', ',@studentsgroups);
  366:             my $key = 'send_to_&&&'.$section.'&&&_'.$student;
  367:             if (! defined($fullname) || $fullname eq '') {$fullname = $sname;}
  368:             my $checked = '';
  369:             my $groupcount = 0;
  370:             my $groupitems;
  371:             $r->print(&Apache::loncommon::start_data_table_row());
  372:             $r->print('<td><label>');
  373:             foreach my $group (@studentsgroups) {
  374:                 $groupcount ++;
  375:                 $groupitems .= ('<input type="hidden" name="group_&&&'.
  376:                                 $group.'&&&_'.$student.'" value="'.
  377:                                 $groupcount.'" />');
  378:                 if (defined($env{'form.group'})) {
  379:                     if ($env{'form.group'} eq $group) {
  380:                         $checked = 'checked=checked';
  381:                     }
  382:                 }
  383:             }
  384:             $r->print(qq{<input type="checkbox" name="$key" $checked />}.
  385:                       ('&nbsp;'x2).$fullname.'</label>'.$groupitems.
  386:                       '</td><td>'.$sname.':'.$sdom.'</td><td>'.$section.
  387:                       '</td><td>'.$grouplist.'</td>');
  388:             $r->print(&Apache::loncommon::end_data_table_row());
  389:         }
  390:         $r->print(&Apache::loncommon::end_data_table());
  391:     }
  392: }
  393: 
  394: # ==================================================== Display Critical Message
  395: 
  396: sub discrit {
  397:     my $r=shift;
  398:     my $header = '<h1><font color="red">'.&mt('Critical Messages').'</font></h1>'.
  399:         '<form action="/adm/email" method="POST">'.
  400:         '<input type="hidden" name="confirm" value="true" />';
  401:     my %what=&Apache::lonnet::dump('critical');
  402:     my $result = '';
  403:     foreach (sort keys %what) {
  404:         my %content=&Apache::lonmsg::unpackagemsg($what{$_});
  405:         next if ($content{'senderdomain'} eq '');
  406:         $result.='<hr />'.&mt('From').': <b>'.
  407: &Apache::loncommon::aboutmewrapper(
  408:  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
  409: $content{'sendername'}.':'.
  410:             $content{'senderdomain'}.') '.$content{'time'}.
  411:             '<br />'.&mt('Subject').': '.$content{'subject'}.
  412:             '<br /><pre>'.
  413:               &Apache::lontexconvert::msgtexconverted($content{'message'}).
  414:             '</pre><small>'.
  415: &mt('You have to confirm that you received this message. After confirmation, this message will be moved to your regular inbox').
  416:             '</small><br />'.
  417:             '<input type="submit" name="rec_'.$_.'" value="'.&mt('Confirm Receipt').'" />'.
  418:             '<input type="submit" name="reprec_'.$_.'" '.
  419:                   'value="'.&mt('Confirm Receipt and Reply').'" />';
  420:     }
  421:     # Check to see if there were any messages.
  422:     if ($result eq '') {
  423:         $result = "<h2>".&mt('You have no critical messages.')."</h2>".
  424: 	    '<a href="/adm/roles">'.&mt('Select a course').'</a><br />'.
  425:             '<a href="/adm/email">'.&mt('Communicate').'</a>';
  426:     } else {
  427:         $r->print($header);
  428:     }
  429:     $r->print($result);
  430:     $r->print('<input type="hidden" name="displayedcrit" value="true" /></form>');
  431: }
  432: 
  433: sub sortedmessages {
  434:     my ($blocked,$startblock,$endblock,$numblocked,$folder) = @_;
  435:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
  436:     my @messages = &Apache::lonnet::getkeys('nohist_email'.$suffix);
  437:     #unpack the varibles and repack into temp for sorting
  438:     my @temp;
  439:     my %descriptions;
  440:     my %status_cache = 
  441: 	&Apache::lonnet::get('email_status'.&Apache::lonmsg::foldersuffix($folder),\@messages);
  442: 
  443:     my $get_received;
  444:     if ($folder eq 'sent' 
  445: 	&& ($env{'form.sortedby'} =~ m/^(rev)?(user|domain)$/)) {
  446: 	$get_received = 1;
  447:     }
  448: 
  449:     foreach my $msgid (@messages) {
  450: 	my $esc_msgid=&Apache::lonnet::escape($msgid);
  451: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid)=
  452: 	    &Apache::lonmsg::unpackmsgid($esc_msgid,$folder,undef,
  453: 					 \%status_cache);
  454:         my $description = &get_course_desc($fromcid,\%descriptions);
  455: 	my @temp1 = ($sendtime,$shortsubj,$fromname,$fromdomain,$status,
  456: 		     $esc_msgid,$description);
  457: 	if ($get_received) {
  458: 	    my %message = &Apache::lonnet::get('nohist_email'.$suffix,
  459: 					       [$msgid]);
  460: 	    my %content = &Apache::lonmsg::unpackagemsg($message{$msgid});
  461: 	    push(@temp1,$content{'recuser'},$content{'recdomain'});
  462: 	}
  463:         # Check whether message was sent during blocking period.
  464:         if ($sendtime >= $startblock && ($sendtime <= $endblock && $endblock > 0) ) {
  465:             $$blocked{$msgid} = 'ON';
  466:             $$numblocked ++;
  467:         } else { 
  468:             push @temp ,\@temp1;
  469:         }
  470:     }
  471:     #default sort
  472:     @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  473:     if ($env{'form.sortedby'} eq "date"){
  474:         @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  475:     }
  476:     if ($env{'form.sortedby'} eq "revdate"){
  477:     	@temp = sort  {$b->[0] <=> $a->[0]} @temp; 
  478:     }
  479:     if ($env{'form.sortedby'} eq "user"){
  480: 	if ($get_received) {
  481: 	    @temp = sort  {lc($a->[7][0]) cmp lc($b->[7][0])} @temp;
  482: 	} else {
  483: 	    @temp = sort  {lc($a->[2])    cmp lc($b->[2])}    @temp;
  484: 	}
  485:     }
  486:     if ($env{'form.sortedby'} eq "revuser"){
  487: 	if ($get_received) {
  488: 	    @temp = sort  {lc($b->[7][0]) cmp lc($a->[7][0])} @temp;
  489: 	} else {
  490: 	    @temp = sort  {lc($b->[2])    cmp lc($a->[2])}    @temp;
  491: 	}
  492:     }
  493:     if ($env{'form.sortedby'} eq "domain"){
  494: 	if ($get_received) {
  495: 	    @temp = sort  {$a->[8][0] cmp $b->[8][0]} @temp;
  496: 	} else {
  497: 	    @temp = sort  {$a->[3]    cmp $b->[3]}    @temp;
  498: 	}
  499:     }
  500:     if ($env{'form.sortedby'} eq "revdomain"){
  501: 	if ($get_received) {
  502: 	    @temp = sort  {$b->[8][0] cmp $a->[8][0]} @temp;
  503: 	} else {
  504: 	    @temp = sort  {$b->[3]    cmp $a->[3]}    @temp;
  505: 	}
  506:     }
  507:     if ($env{'form.sortedby'} eq "subject"){
  508:         @temp = sort  {lc($a->[1]) cmp lc($b->[1])} @temp;
  509:     }
  510:     if ($env{'form.sortedby'} eq "revsubject"){
  511:         @temp = sort  {lc($b->[1]) cmp lc($a->[1])} @temp;
  512:     }
  513:     if ($env{'form.sortedby'} eq "course"){
  514:         @temp = sort  {lc($a->[6]) cmp lc($b->[6])} @temp;
  515:     }
  516:     if ($env{'form.sortedby'} eq "revcourse"){
  517:         @temp = sort  {lc($b->[6]) cmp lc($a->[6])} @temp;
  518:     }
  519:     if ($env{'form.sortedby'} eq "status"){
  520:         @temp = sort  {$a->[4] cmp $b->[4]} @temp;
  521:     }
  522:     if ($env{'form.sortedby'} eq "revstatus"){
  523:         @temp = sort  {$b->[4] cmp $a->[4]} @temp;
  524:     }
  525:     return @temp;
  526: }
  527: 
  528: sub get_course_desc {
  529:     my ($fromcid,$descriptions) = @_;
  530:     my $description;
  531:     if (!$fromcid) {
  532:         return $description;
  533:     } else {
  534:         if (defined($$descriptions{$fromcid})) {
  535:             $description = $$descriptions{$fromcid};
  536:         } else {
  537:             if (defined($env{'course.'.$fromcid.'.description'})) {
  538:                 $description = $env{'course.'.$fromcid.'.description'};
  539:             } else {
  540:                 my %courseinfo=&Apache::lonnet::coursedescription($fromcid);                $description = $courseinfo{'description'};
  541:                 $description = $courseinfo{'description'};
  542:             }
  543:             $$descriptions{$fromcid} = $description;
  544:         }
  545:         return $description;
  546:     }
  547: }
  548: 
  549: # ======================================================== Display new messages
  550: 
  551: 
  552: sub disnew {
  553:     my $r=shift;
  554:     my %lt=&Apache::lonlocal::texthash(
  555: 				       'nm' => 'New Messages',
  556: 				       'su' => 'Subject',
  557:                                        'co' => 'Course',
  558: 				       'da' => 'Date',
  559: 				       'us' => 'Username',
  560: 				       'op' => 'Open',
  561: 				       'do' => 'Domain'
  562: 				       );
  563:     my @msgids = sort(&Apache::lonnet::getkeys('nohist_email'));
  564:     my @newmsgs;
  565:     my %setters = ();
  566:     my $startblock = 0;
  567:     my $endblock = 0;
  568:     my %blocked = ();
  569:     my $numblocked = 0;
  570:     # Check for blocking of display because of scheduled online exams.
  571:     &blockcheck(\%setters,\$startblock,\$endblock);
  572:     my %status_cache = 
  573: 	&Apache::lonnet::get('email_status',\@msgids);
  574:     my %descriptions;
  575:     foreach (@msgids) {
  576: 	my $msgid=&Apache::lonnet::escape($_);
  577:         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
  578: 	    &Apache::lonmsg::unpackmsgid($msgid,undef,undef,\%status_cache);
  579:         if (defined($sendtime) && $sendtime!~/error/) {
  580:             my $description = &get_course_desc($fromcid,\%descriptions);
  581:             my $numsendtime = $sendtime;
  582:             $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
  583:             if ($status eq 'new') {
  584:                 if ($numsendtime >= $startblock && ($numsendtime <= $endblock && $endblock > 0) ) {
  585:                     $blocked{$_} = 'ON';
  586:                     $numblocked ++;
  587:                 } else {
  588:                     push @newmsgs, { 
  589:                         msgid    => $msgid,
  590:                         sendtime => $sendtime,
  591:                         shortsub => $shortsubj,
  592:                         from     => $fromname,
  593:                         fromdom  => $fromdom,
  594:                         course   => $description 
  595:                         }
  596:                 }
  597:             }
  598:         }
  599:     }
  600:     if ($#newmsgs >= 0) {
  601:         $r->print(<<TABLEHEAD);
  602: <h2>$lt{'nm'}</h2>
  603: <table class="LC_mail_list"><tr><th>&nbsp</th>
  604: <th>$lt{'da'}</th><th>$lt{'us'}</th><th>$lt{'do'}</th><th>$lt{'su'}</th><th>$lt{'co'}</th></tr>
  605: TABLEHEAD
  606:         foreach my $msg (@newmsgs) {
  607:             $r->print(<<"ENDLINK");
  608: <tr class="LC_mail_new">
  609: <td><a href="/adm/email?dismode=new&display=$msg->{'msgid'}">$lt{'op'}</a></td>
  610: ENDLINK
  611:             foreach ('sendtime','from','fromdom','shortsub','course') {
  612:                 $r->print("<td>$msg->{$_}</td>");
  613:             }
  614:             $r->print("</td></tr>");
  615:         }
  616:         $r->print('</table>');
  617:     } elsif ($numblocked == 0) {
  618:         $r->print("<h3>".&mt('You have no unread messages')."</h3>");
  619:     }
  620:     if ($numblocked > 0) {
  621:         my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
  622:         my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
  623:         if ($numblocked == 1) {
  624:             $r->print("<h3>".&mt('You have').' '.$numblocked.' '.&mt('blocked unread message').".</h3>");
  625:             $r->print(&mt('This message is not viewable because').' ');
  626:         } else {
  627:             $r->print("<h3>".&mt('You have').' '.$numblocked.' '.&mt('blocked unread messages').".</h3>");
  628:             $r->print(&mt('These').' '.$numblocked.' '.&mt('messages are not viewable because '));
  629:         }
  630:         $r->print(
  631: &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').'.');
  632:         &build_block_table($r,$startblock,$endblock,\%setters);
  633:     }
  634: }
  635: 
  636: 
  637: # ======================================================== Display all messages
  638: 
  639: sub disall {
  640:     my ($r,$folder)=@_;
  641:     $r->print(&folderlist($folder));
  642:     if ($folder eq 'new') {
  643: 	&disnew($r);
  644:     } elsif ($folder eq 'critical') {
  645: 	&discrit($r);
  646:     } else {
  647: 	&disfolder($r,$folder);
  648:     }
  649: }
  650: 
  651: # ============================================================ Display a folder
  652: 
  653: sub disfolder {
  654:     my ($r,$folder)=@_;
  655:     my %blocked = ();
  656:     my %setters = ();
  657:     my $startblock;
  658:     my $endblock;
  659:     my $numblocked = 0;
  660:     &blockcheck(\%setters,\$startblock,\$endblock);
  661:     $r->print(<<ENDDISHEADER);
  662: <script type="text/javascript">
  663:     function checkall() {
  664: 	for (i=0; i<document.forms.disall.elements.length; i++) {
  665:             if 
  666:           (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
  667: 	      document.forms.disall.elements[i].checked=true;
  668:             }
  669:         }
  670:     }
  671: 
  672:     function uncheckall() {
  673: 	for (i=0; i<document.forms.disall.elements.length; i++) {
  674:             if 
  675:           (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
  676: 	      document.forms.disall.elements[i].checked=false;
  677:             }
  678:         }
  679:     }
  680: </script>
  681: ENDDISHEADER
  682:     my $fsqs='&folder='.$folder;
  683:     my @temp=sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder);
  684:     my $totalnumber=$#temp+1;
  685:     unless ($totalnumber>0) {
  686: 	$r->print('<h2>'.&mt('Empty Folder').'</h2>');
  687: 	return;
  688:     }
  689:     unless ($interdis) {
  690: 	$interdis=20;
  691:     }
  692:     my $number=int($totalnumber/$interdis);
  693:     if (($startdis<0) || ($startdis>$number)) { $startdis=$number; }
  694:     my $firstdis=$interdis*$startdis;
  695:     if ($firstdis>$#temp) { $firstdis=$#temp-$interdis+1; }
  696:     my $lastdis=$firstdis+$interdis-1;
  697:     if ($lastdis>$#temp) { $lastdis=$#temp; }
  698:     $r->print(&scrollbuttons($startdis,$number,$firstdis,$lastdis,$totalnumber));
  699:     $r->print('<form method="post" name="disall" action="/adm/email">'.
  700: 	      '<table class="LC_mail_list"><tr><th colspan="3">&nbsp</th><th>');
  701:     if ($env{'form.sortedby'} eq "revdate") {
  702: 	$r->print('<a href = "?sortedby=date'.$fsqs.'">'.&mt('Date').'</a></th>');
  703:     } else {
  704: 	$r->print('<a href = "?sortedby=revdate'.$fsqs.'">'.&mt('Date').'</a></th>');
  705:     }
  706:     $r->print('<th>');
  707:     if ($env{'form.sortedby'} eq "revuser") {
  708: 	$r->print('<a href = "?sortedby=user'.$fsqs.'">'.&mt('Username').'</a>');
  709:     } else {
  710: 	$r->print('<a href = "?sortedby=revuser'.$fsqs.'">'.&mt('Username').'</a>');
  711:     }
  712:     $r->print('</th><th>');
  713:     if ($env{'form.sortedby'} eq "revdomain") {
  714: 	$r->print('<a href = "?sortedby=domain'.$fsqs.'">'.&mt('Domain').'</a>');
  715:     } else {
  716: 	$r->print('<a href = "?sortedby=revdomain'.$fsqs.'">'.&mt('Domain').'</a>');
  717:     }
  718:     $r->print('</th><th>');
  719:     if ($env{'form.sortedby'} eq "revsubject") {
  720: 	$r->print('<a href = "?sortedby=subject'.$fsqs.'">'.&mt('Subject').'</a>');
  721:     } else {
  722:     	$r->print('<a href = "?sortedby=revsubject'.$fsqs.'">'.&mt('Subject').'</a>');
  723:     }
  724:     $r->print('</th><th>');
  725:     if ($env{'form.sortedby'} eq "revcourse") {
  726:         $r->print('<a href = "?sortedby=course'.$fsqs.'">'.&mt('Course').'</a>');
  727:     } else {
  728:         $r->print('<a href = "?sortedby=revcourse'.$fsqs.'">'.&mt('Course').'</a>');
  729:     }
  730:     $r->print('</th><th>');
  731:     if ($env{'form.sortedby'} eq "revstatus") {
  732: 	$r->print('<a href = "?sortedby=status'.$fsqs.'">'.&mt('Status').'</a></th>');
  733:     } else {
  734:      	$r->print('<a href = "?sortedby=revstatus'.$fsqs.'">'.&mt('Status').'</a></th>');
  735:     }
  736:     $r->print("</tr>\n");
  737: 
  738:     my $suffix = &Apache::lonmsg::foldersuffix($folder);
  739:     for (my $n=$firstdis;$n<=$lastdis;$n++) {
  740: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$origID,
  741: 	    $description,$recv_name,$recv_domain)= 
  742: 		@{$temp[$n]};
  743: 	if (($status ne 'deleted') && defined($sendtime) && $sendtime!~/error/) {
  744: 	    if ($status eq 'new') {
  745: 		$r->print('<tr class="LC_mail_new">');
  746: 	    } elsif ($status eq 'read') {
  747: 		$r->print('<tr class="LC_mail_read">');
  748: 	    } elsif ($status eq 'replied') {
  749: 		$r->print('<tr class="LC_mail_replied">'); 
  750: 	    } else {
  751: 		$r->print('<tr class="LC_mail_other">');
  752: 	    }
  753: 	    my ($dis_name,$dis_domain) = ($fromname,$fromdomain);
  754: 	    if ($folder eq 'sent') {
  755: 		if (defined($recv_name) && !defined($recv_domain)) {
  756: 		    $dis_name   = join('<br />',@{$recv_name});
  757: 		    $dis_domain = join('<br />',@{$recv_domain});
  758: 		} else {
  759: 		    my $msg_id  = &Apache::lonnet::unescape($origID);
  760: 		    my %message = &Apache::lonnet::get('nohist_email'.$suffix,
  761: 						       [$msg_id]);
  762: 		    my %content = &Apache::lonmsg::unpackagemsg($message{$msg_id});
  763: 		    $dis_name   = join('<br />',@{$content{'recuser'}});
  764: 		    $dis_domain = join('<br />',@{$content{'recdomain'}});
  765: 		}
  766: 	    }
  767: 	    $r->print('<td><input type="checkbox" name="delmark_'.$origID.'" /></td><td><a href="/adm/email?display='.$origID.$sqs. 
  768: 		      '">'.&mt('Open').'</a></td><td>'.
  769: 		      ($folder ne 'trash'?'<a href="/adm/email?markdel='.$origID.$sqs.
  770: 		      '">'.&mt('Delete'):'&nbsp').'</a></td>'.
  771: 		      '<td>'.&Apache::lonlocal::locallocaltime($sendtime).'</td><td>'.
  772: 		      $dis_name.'</td><td>'.$dis_domain.'</td><td>'.
  773: 		      $shortsubj.'</td><td>'.
  774:                       $description.'</td><td>'.$status.'</td></tr>'."\n");
  775: 	} elsif ($status eq 'deleted') {
  776: # purge
  777: 	    my ($result,$msg) = 
  778: 		&movemsg(&Apache::lonnet::unescape($origID),$folder,'trash');
  779: 	    
  780: 	}
  781:     }   
  782:     $r->print("</table>\n<p>".
  783:   '<a href="javascript:checkall()">'.&mt('Check All').'</a>&nbsp;'.
  784:   '<a href="javascript:uncheckall()">'.&mt('Uncheck All').'</a></p>'.
  785:   '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />');
  786:     if ($folder ne 'trash') {
  787: 	$r->print(
  788: 	      '<p><input type="submit" name="markeddel" value="'.&mt('Delete Checked').'" /></p>');
  789:     }
  790:     $r->print('<p><input type="submit" name="markedmove" value="'.&mt('Move Checked to Folder').'" />');
  791:     my @allfolders=&Apache::lonnet::getkeys('email_folders');
  792:     if ($allfolders[0]=~/^error:/) { @allfolders=(); }
  793:     $r->print(
  794: 	&Apache::loncommon::select_form('','movetofolder',
  795: 			     ( map { $_ => $_ } @allfolders))
  796: 	      );
  797:     my $postedstartdis=$startdis+1;
  798:     $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>');
  799:     if ($numblocked > 0) {
  800:         my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
  801:         my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
  802:         $r->print('<br /><br />'.
  803:                   $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.'));
  804:         &build_block_table($r,$startblock,$endblock,\%setters);
  805:     }
  806: }
  807: 
  808: # ============================================================== Compose output
  809: 
  810: sub compout {
  811:     my ($r,$forwarding,$replying,$broadcast,$replycrit,$folder,$dismode)=@_;
  812:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
  813: 
  814:     if ($broadcast eq 'individual') {
  815: 	&printheader($r,'/adm/email?compose=individual',
  816: 	     'Send a Message');
  817:     } elsif ($broadcast) {
  818: 	&printheader($r,'/adm/email?compose=group',
  819: 	     'Broadcast Message');
  820:     } elsif ($forwarding) {
  821: 	&Apache::lonhtmlcommon::add_breadcrumb
  822:         ({href=>"/adm/email?display=".&Apache::lonnet::escape($forwarding),
  823:           text=>"Display Message"});
  824: 	&printheader($r,'/adm/email?forward='.&Apache::lonnet::escape($forwarding),
  825: 	     'Forwarding a Message');
  826:     } elsif ($replying) {
  827: 	&Apache::lonhtmlcommon::add_breadcrumb
  828:         ({href=>"/adm/email?display=".&Apache::lonnet::escape($replying),
  829:           text=>"Display Message"});
  830: 	&printheader($r,'/adm/email?replyto='.&Apache::lonnet::escape($replying),
  831: 	     'Replying to a Message');
  832:     } elsif ($replycrit) {
  833: 	$r->print('<h3>'.&mt('Replying to a Critical Message').'</h3>');
  834: 	$replying=$replycrit;
  835:     } else {
  836: 	&printheader($r,'/adm/email?compose=upload',
  837: 	     'Distribute from Uploaded File');
  838:     }
  839: 
  840:     my $dispcrit='';
  841:     my $dissub='';
  842:     my $dismsg='';
  843:     my $disbase='';
  844:     my $func=&mt('Send New');
  845:     my %lt=&Apache::lonlocal::texthash('us' => 'Username',
  846: 				       'do' => 'Domain',
  847: 				       'ad' => 'Additional Recipients',
  848: 				       'sb' => 'Subject',
  849: 				       'ca' => 'Cancel',
  850: 				       'ma' => 'Mail');
  851: 
  852:     if (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
  853: 	|| &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
  854: 				    '/'.$env{'request.course.sec'})) {
  855: 	 my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
  856:          $dispcrit=
  857:  '<p><label><input type="checkbox" name="critmsg" /> '.&mt('Send as critical message').'</label> ' . $crithelp . 
  858:  '</p><p>'.
  859:  '<label><input type="checkbox" name="sendbck" /> '.&mt('Send as critical message').'  ' .
  860:  &mt('and return receipt') . '</label>' . $crithelp . 
  861:  '</p><p><label><input type="checkbox" name="permanent" /> '.
  862: &mt('Send copy to permanent email address (if known)').'</label></p>'.
  863: '<p><label><input type="checkbox" name="rsspost" /> '.
  864: 		  &mt('Include in course RSS newsfeed').'</label></p>';
  865:      }
  866:     my %message;
  867:     my %content;
  868:     my $defdom=$env{'user.domain'};
  869:     if ($forwarding) {
  870: 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$forwarding]);
  871: 	%content=&Apache::lonmsg::unpackagemsg($message{$forwarding},$folder);
  872: 	$dispcrit.='<input type="hidden" name="forwid" value="'.
  873: 	    $forwarding.'" />';
  874: 	$func=&mt('Forward');
  875: 	
  876: 	$dissub=&mt('Forwarding').': '.$content{'subject'};
  877: 	$dismsg=&mt('Forwarded message from').' '.
  878: 	    $content{'sendername'}.' '.&mt('at').' '.$content{'senderdomain'};
  879: 	if ($content{'baseurl'}) {
  880: 	    $disbase='<input type="hidden" name="baseurl" value="'.&Apache::lonnet::escape($content{'baseurl'}).'" />';
  881: 	}
  882:     }
  883:     if ($replying) {
  884: 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$replying]);
  885: 	%content=&Apache::lonmsg::unpackagemsg($message{$replying},$folder);
  886: 	$dispcrit.='<input type="hidden" name="replyid" value="'.
  887: 	    $replying.'" />';
  888: 	$func=&mt('Send Reply to');
  889: 	
  890: 	$dissub=&mt('Reply').': '.$content{'subject'};       
  891: 	$dismsg='> '.$content{'message'};
  892: 	$dismsg=~s/\r/\n/g;
  893: 	$dismsg=~s/\f/\n/g;
  894: 	$dismsg=~s/\n+/\n\> /g;
  895: 	if ($content{'baseurl'}) {
  896: 	    $disbase='<input type="hidden" name="baseurl" value="'.&Apache::lonnet::escape($content{'baseurl'}).'" />';
  897: 	    if ($env{'user.adv'}) {
  898: 		$disbase.='<label><input type="checkbox" name="storebasecomment" />'.&mt('Store message for re-use').
  899: 		    '</label> <a href="/adm/email?showcommentbaseurl='.
  900: 		    &Apache::lonnet::escape($content{'baseurl'}).'" target="comments">'.
  901: 		    &mt('Show re-usable messages').'</a><br />';
  902: 	    }
  903: 	}
  904:     }
  905:     my $citation=&displayresource(%content);
  906:     if ($env{'form.recdom'}) { $defdom=$env{'form.recdom'}; }
  907:       $r->print(
  908:                 '<form action="/adm/email"  name="compemail" method="post"'.
  909:                 ' enctype="multipart/form-data">'."\n".
  910:                 '<input type="hidden" name="sendmail" value="on" />'."\n".
  911:                 '<table>');
  912:     unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {
  913: 	if ($replying) {
  914: 	    $r->print('<tr><td colspan="2">'.&mt('Replying to').' '.
  915: 		      &Apache::loncommon::aboutmewrapper(
  916: 							 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).' ('.
  917: 		      $content{'sendername'}.':'.
  918: 		      $content{'senderdomain'}.')'.
  919: 		      '<input type="hidden" name="recuname" value="'.$content{'sendername'}.'" />'.
  920: 		      '<input type="hidden" name="recdomain" value="'.$content{'senderdomain'}.'" />'.
  921: 		      '</td></tr>');
  922: 	} else {
  923: 	    my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
  924: 	    my $selectlink=&Apache::loncommon::selectstudent_link
  925: 	    ('compemail','recuname','recdomain');
  926: 	    $r->print(<<"ENDREC");
  927: <tr><td>$lt{'us'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recname'}" /></td><td rowspan="2">$selectlink</td></tr>
  928: <tr><td>$lt{'do'}:</td>
  929: <td>$domform</td></tr>
  930: ENDREC
  931:         }
  932:     }
  933:     my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
  934:     if ($broadcast ne 'upload') {
  935:        $r->print(<<"ENDCOMP");
  936: <tr><td>$lt{'ad'}<br /><tt>username\@domain,username\@domain, ...
  937: </tt></td><td>
  938: <input type="text" size="50" name="additionalrec" /></td></tr>
  939: <tr><td>$lt{'sb'}:</td><td><input type="text" size="50" name="subject" value="$dissub" />
  940: </td></tr></table>
  941: $latexHelp
  942: <textarea name="message" id="message" cols="80" rows="15" wrap="hard">$dismsg
  943: </textarea></p><br />
  944: $dispcrit
  945: $disbase
  946: <input type="hidden" name="folder" value="$folder" />
  947: <input type="hidden" name="dismode" value="$dismode" />
  948: <input type="submit" name="send" value="$func $lt{'ma'}" />
  949: <input type="submit" name="cancel" value="$lt{'ca'}" /><hr />
  950: $citation
  951: ENDCOMP
  952:     } else { # $broadcast is 'upload'
  953: 	$r->print(<<ENDUPLOAD);
  954: <input type="hidden" name="sendmode" value="upload" />
  955: <input type="hidden" name="send" value="on" />
  956: <h3>Generate messages from a file</h3>
  957: <p>
  958: Subject: <input type="text" size="50" name="subject" />
  959: </p>
  960: <p>General message text<br />
  961: <textarea name="message" id="message" cols="60" rows="10" wrap="hard">$dismsg
  962: </textarea></p>
  963: <p>
  964: The file format for the uploaded portion of the message is:
  965: <pre>
  966: username1\@domain1: text
  967: username2\@domain2: text
  968: username3\@domain1: text
  969: </pre>
  970: </p>
  971: <p>
  972: The messages will be assembled from all lines with the respective 
  973: <tt>username\@domain</tt>, and appended to the general message text.</p>
  974: <p>
  975: <input type="file" name="upfile" size="40" /></p><p>
  976: $dispcrit
  977: <input type="submit" value="Upload and Send" /></p>
  978: ENDUPLOAD
  979:     }
  980:     if ($broadcast eq 'group') {
  981:        &discourse($r);
  982:     }
  983:     $r->print('</form>'.
  984: 	      &Apache::lonfeedback::generate_preview_button('compemail','message').
  985: 	      &Apache::lonhtmlcommon::htmlareaselectactive('message'));
  986: }
  987: 
  988: # ---------------------------------------------------- Display all face to face
  989: 
  990: sub retrieve_instructor_comments {
  991:     my ($user,$domain)=@_;
  992:     my $target=$env{'form.grade_target'};
  993:     if (! $env{'request.course.id'}) { return; }
  994:     if (! &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  995: 	&& ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
  996: 				      '/'.$env{'request.course.sec'})) {
  997: 	return;
  998:     }
  999:     my %records=&Apache::lonnet::dump('nohist_email',
 1000: 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
 1001: 			 $env{'course.'.$env{'request.course.id'}.'.num'},
 1002:                          '%255b'.$user.'%253a'.$domain.'%255d');
 1003:     my $result='';
 1004:     foreach (sort(keys(%records))) {
 1005:         my %content=&Apache::lonmsg::unpackagemsg($records{$_});
 1006:         next if ($content{'senderdomain'} eq '');
 1007:         next if ($content{'subject'} !~ /^Record/);
 1008: 	# &Apache::lonfeedback::newline_to_br(\$content{'message'});
 1009: 	$result.='Recorded by '.
 1010:             $content{'sendername'}.':'.$content{'senderdomain'}."\n";
 1011:         $result.=
 1012:             &Apache::lontexconvert::msgtexconverted($content{'message'})."\n";
 1013:      }
 1014:     return $result;
 1015: }
 1016: 
 1017: sub disfacetoface {
 1018:     my ($r,$user,$domain)=@_;
 1019:     my $target=$env{'form.grade_target'};
 1020:     unless ($env{'request.course.id'}) { return; }
 1021:     if  (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1022: 	 && ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1023: 				       '/'.$env{'request.course.sec'})) {
 1024: 	$r->print('Not allowed');
 1025: 	return;
 1026:     }
 1027:     my %records=&Apache::lonnet::dump('nohist_email',
 1028: 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
 1029: 			 $env{'course.'.$env{'request.course.id'}.'.num'},
 1030:                          '%255b'.$user.'%253a'.$domain.'%255d');
 1031:     my $result='';
 1032:     foreach (sort keys %records) {
 1033:         my %content=&Apache::lonmsg::unpackagemsg($records{$_});
 1034:         next if ($content{'senderdomain'} eq '');
 1035: 	&Apache::lonfeedback::newline_to_br(\$content{'message'});
 1036:         if ($content{'subject'}=~/^Record/) {
 1037: 	    $result.='<h3>'.&mt('Record').'</h3>';
 1038:         } elsif ($content{'subject'}=~/^Broadcast/) {
 1039:             $result .='<h3>'.&mt('Broadcast Message').'</h3>';
 1040:             if ($content{'subject'}=~/^Broadcast\./) {
 1041:                 if (defined($content{'coursemsgid'})) {
 1042:                     my $crsmsgid = &Apache::lonnet::escape($content{'coursemsgid'});
 1043:                     my $broadcast_message = &general_message($crsmsgid);
 1044:                     $content{'message'} = '<b>'.&mt('Subject').': '.$content{'message'}.'</b><br />'.$broadcast_message;
 1045:                 } else {
 1046:                     %content=&Apache::lonmsg::unpackagemsg($content{'message'});
 1047:                     $content{'message'} =
 1048:                     '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
 1049:                     $content{'message'};
 1050:                 }
 1051:             }    
 1052:         } else {
 1053:             $result.='<h3>'.&mt('Critical Message').'</h3>';
 1054:             if (defined($content{'coursemsgid'})) {
 1055:                 my $crsmsgid=&Apache::lonnet::escape($content{'coursemsgid'});
 1056:                 my $critical_message = &general_message($crsmsgid);
 1057:                 $content{'message'} = '<b>'.&mt('Subject').': '.$content{'message'}.'</b><br />'.$critical_message;
 1058:             } else {
 1059:                 %content=&Apache::lonmsg::unpackagemsg($content{'message'});
 1060:                 $content{'message'}=
 1061:                 '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
 1062: 		$content{'message'};
 1063:             }
 1064:         }
 1065:         $result.=&mt('By').': <b>'.
 1066: &Apache::loncommon::aboutmewrapper(
 1067:  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
 1068: $content{'sendername'}.':'.
 1069:             $content{'senderdomain'}.') '.$content{'time'}.
 1070:             '<br /><pre>'.
 1071:               &Apache::lontexconvert::msgtexconverted($content{'message'}).
 1072: 	      '</pre>';
 1073:      }
 1074:     # Check to see if there were any messages.
 1075:     if ($result eq '') {
 1076: 	if ($target ne 'tex') { 
 1077: 	    $r->print("<p><b>".&mt("No notes, face-to-face discussion records, critical messages, or broadcast messages in this course.")."</b></p>");
 1078: 	} else {
 1079: 	    $r->print('\textbf{'.&mt("No notes, face-to-face discussion records, critical messages or broadcast messages in this course.").'}\\\\');
 1080: 	}
 1081:     } else {
 1082:        $r->print($result);
 1083:     }
 1084: }
 1085: 
 1086: sub general_message {
 1087:     my ($crsmsgid) = @_;
 1088:     my %general_content;
 1089:     if ($crsmsgid) { 
 1090:         my %course_content = &Apache::lonnet::get('nohist_email',[$crsmsgid],
 1091:                            $env{'course.'.$env{'request.course.id'}.'.domain'},
 1092:                            $env{'course.'.$env{'request.course.id'}.'.num'});
 1093:         %general_content = &Apache::lonmsg::unpackagemsg($course_content{$crsmsgid});
 1094:     }
 1095:     return $general_content{'message'};
 1096: }
 1097: 
 1098: # ---------------------------------------------------------------- Face to face
 1099: 
 1100: sub facetoface {
 1101:     my ($r,$stage)=@_;
 1102:     if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1103: 	&& ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1104: 				      '/'.$env{'request.course.sec'})) {
 1105: 	$r->print('Not allowed');
 1106: 	return;
 1107:     }
 1108:     &printheader($r,
 1109: 		 '/adm/email?recordftf=query',
 1110: 		 "User Notes, Face-to-Face, Critical Messages, Broadcast Messages");
 1111: # from query string
 1112: 
 1113:     if ($env{'form.recname'}) { $env{'form.recuname'}=$env{'form.recname'}; }
 1114:     if ($env{'form.recdom'}) { $env{'form.recdomain'}=$env{'form.recdom'}; }
 1115: 
 1116:     my $defdom=$env{'user.domain'};
 1117: # already filled in
 1118:     if ($env{'form.recdomain'}) { $defdom=$env{'form.recdomain'}; }
 1119: # generate output
 1120:     my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
 1121:     my $stdbrws = &Apache::loncommon::selectstudent_link
 1122: 	('stdselect','recuname','recdomain');
 1123:     my %lt=&Apache::lonlocal::texthash('user' => 'Username',
 1124: 				       'dom' => 'Domain',
 1125: 				       'head' => 'User Notes, Records of Face-To-Face Discussions, Critical Messages, and Broadcast Messages in Course',
 1126: 				       'subm' => 'Retrieve discussion and message records',
 1127: 				       'newr' => 'New Record (record is visible to course faculty and staff)',
 1128: 				       'post' => 'Post this Record');
 1129:     $r->print(<<"ENDTREC");
 1130: <h3>$lt{'head'}</h3>
 1131: <form method="post" action="/adm/email" name="stdselect">
 1132: <input type="hidden" name="recordftf" value="retrieve" />
 1133: <table>
 1134: <tr><td>$lt{'user'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recuname'}" /></td>
 1135: <td rowspan="2">
 1136: $stdbrws
 1137: <input type="submit" value="$lt{'subm'}" /></td>
 1138: </tr>
 1139: <tr><td>$lt{'dom'}:</td>
 1140: <td>$domform</td></tr>
 1141: </table>
 1142: </form>
 1143: ENDTREC
 1144:     if (($stage ne 'query') &&
 1145:         ($env{'form.recdomain'}) && ($env{'form.recuname'})) {
 1146:         chomp($env{'form.newrecord'});
 1147:         if ($env{'form.newrecord'}) {
 1148:            my $recordtxt = $env{'form.newrecord'};
 1149:            &Apache::lonmsg::user_normal_msg_raw(
 1150:             $env{'course.'.$env{'request.course.id'}.'.num'},
 1151:             $env{'course.'.$env{'request.course.id'}.'.domain'},
 1152:             &mt('Record').
 1153: 	     ' ['.$env{'form.recuname'}.':'.$env{'form.recdomain'}.']',
 1154: 	    $recordtxt);
 1155:         }
 1156:         $r->print('<h3>'.&Apache::loncommon::plainname($env{'form.recuname'},
 1157: 				     $env{'form.recdomain'}).'</h3>');
 1158:         &disfacetoface($r,$env{'form.recuname'},$env{'form.recdomain'});
 1159: 	$r->print(<<ENDRHEAD);
 1160: <form method="post" action="/adm/email">
 1161: <input name="recdomain" value="$env{'form.recdomain'}" type="hidden" />
 1162: <input name="recuname" value="$env{'form.recuname'}" type="hidden" />
 1163: ENDRHEAD
 1164:         $r->print(<<ENDBFORM);
 1165: <hr />$lt{'newr'}<br />
 1166: <textarea name="newrecord" cols="80" rows="10" wrap="hard"></textarea>
 1167: <br />
 1168: <input type="hidden" name="recordftf" value="post" />
 1169: <input type="submit" value="$lt{'post'}" />
 1170: </form>
 1171: ENDBFORM
 1172:     }
 1173: }
 1174: 
 1175: # ----------------------------------------------------------- Blocking during exams
 1176: 
 1177: sub examblock {
 1178:     my ($r,$action) = @_;
 1179:     unless ($env{'request.course.id'}) { return;}
 1180:     if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1181: 	&& ! &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1182: 				      '/'.$env{'request.course.sec'})) {
 1183: 	$r->print('Not allowed');
 1184: 	return;
 1185:     }
 1186:     my %lt=&Apache::lonlocal::texthash(
 1187:             'comb' => 'Communication Blocking',
 1188:             'cbds' => 'Communication blocking during scheduled exams',
 1189:             '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.',
 1190:              'mecb' => 'Modify existing communication blocking periods',
 1191:              'ncbc' => 'No communication blocks currently stored'
 1192:     );
 1193: 
 1194:     my %ltext = &Apache::lonlocal::texthash(
 1195:             'dura' => 'Duration',
 1196:             'setb' => 'Set by',
 1197:             'even' => 'Event',
 1198:             'actn' => 'Action',
 1199:             'star' => 'Start',
 1200:             'endd' => 'End'
 1201:     );
 1202: 
 1203:     &printheader($r,'/adm/email?block=display',$lt{'comb'});
 1204:     $r->print('<h3>'.$lt{'cbds'}.'</h3>');
 1205: 
 1206:     if ($action eq 'store') {
 1207:         &blockstore($r);
 1208:     }
 1209: 
 1210:     $r->print($lt{'desc'}.'<br /><br />
 1211:                <form name="blockform" method="post" action="/adm/email?block=store">
 1212:              ');
 1213: 
 1214:     $r->print('<h4>'.$lt{'mecb'}.'</h4>');
 1215:     my %records = ();
 1216:     my $blockcount = 0;
 1217:     my $parmcount = 0;
 1218:     &get_blockdates(\%records,\$blockcount);
 1219:     if ($blockcount > 0) {
 1220:         $parmcount = &display_blocker_status($r,\%records,\%ltext);
 1221:     } else {
 1222:         $r->print($lt{'ncbc'}.'<br /><br />');
 1223:     }
 1224:     &display_addblocker_table($r,$parmcount,\%ltext);
 1225:     my $end_page=&Apache::loncommon::end_page();
 1226:     $r->print(<<"END");
 1227: <br />
 1228: <input type="hidden" name="blocktotal" value="$blockcount" />
 1229: <input type ="submit" value="Save Changes" />
 1230: </form>
 1231: $end_page
 1232: END
 1233:     return;
 1234: }
 1235: 
 1236: sub blockstore {
 1237:     my $r = shift;
 1238:     my %lt=&Apache::lonlocal::texthash(
 1239:             'tfcm' => 'The following changes were made',
 1240:             'cbps' => 'communication blocking period(s)',
 1241:             'werm' => 'was/were removed',
 1242:             'wemo' => 'was/were modified',
 1243:             'wead' => 'was/were added',
 1244:             'ncwm' => 'No changes were made.' 
 1245:     );
 1246:     my %adds = ();
 1247:     my %removals = ();
 1248:     my %cancels = ();
 1249:     my $modtotal = 0;
 1250:     my $canceltotal = 0;
 1251:     my $addtotal = 0;
 1252:     my %blocking = ();
 1253:     $r->print('<h3>'.$lt{'head'}.'</h3>');
 1254:     foreach (keys %env) {
 1255:         if ($_ =~ m/^form\.modify_(\w+)$/) {
 1256:             $adds{$1} = $1;
 1257:             $removals{$1} = $1;
 1258:             $modtotal ++;
 1259:         } elsif ($_ =~ m/^form\.cancel_(\d+)$/) {
 1260:             $cancels{$1} = $1;
 1261:             unless ( defined($removals{$1}) ) {
 1262:                 $removals{$1} = $1;
 1263:                 $canceltotal ++;
 1264:             }
 1265:         } elsif ($_ =~ m/^form\.add_(\d+)$/) {
 1266:             $adds{$1} = $1;
 1267:             $addtotal ++;
 1268:         }
 1269:     }
 1270: 
 1271:     foreach (keys %removals) {
 1272:         my $hashkey = $env{'form.key_'.$_};
 1273:         &Apache::lonnet::del('comm_block',["$hashkey"],
 1274:                          $env{'course.'.$env{'request.course.id'}.'.domain'},
 1275:                          $env{'course.'.$env{'request.course.id'}.'.num'}
 1276:                          );
 1277:     }
 1278:     foreach (keys %adds) {
 1279:         unless ( defined($cancels{$_}) ) {
 1280:             my ($newstart,$newend) = &get_dates_from_form($_);
 1281:             my $newkey = $newstart.'____'.$newend;
 1282:             $blocking{$newkey} = $env{'user.name'}.':'.$env{'user.domain'}.':'.$env{'form.title_'.$_};
 1283:         }
 1284:     }
 1285:     if ($addtotal + $modtotal > 0) {
 1286:         &Apache::lonnet::put('comm_block',\%blocking,
 1287:                      $env{'course.'.$env{'request.course.id'}.'.domain'},
 1288:                      $env{'course.'.$env{'request.course.id'}.'.num'}
 1289:                      );
 1290:     }
 1291:     my $chgestotal = $canceltotal + $modtotal + $addtotal;
 1292:     if ($chgestotal > 0) {
 1293:         $r->print($lt{'tfcm'}.'<ul>');
 1294:         if ($canceltotal > 0) {
 1295:             $r->print('<li>'.$canceltotal.' '.$lt{'cbps'},' '.$lt{'werm'}.'</li>');
 1296:         }
 1297:         if ($modtotal > 0) {
 1298:             $r->print('<li>'.$modtotal.' '.$lt{'cbps'},' '.$lt{'wemo'}.'</li>');
 1299:         }
 1300:         if ($addtotal > 0) {
 1301:             $r->print('<li>'.$addtotal.' '.$lt{'cbps'},' '.$lt{'wead'}.'</li>');
 1302:         }
 1303:         $r->print('</ul>');
 1304:     } else {
 1305:         $r->print($lt{'ncwm'});
 1306:     }
 1307:     $r->print('<br />');
 1308:     return;
 1309: }
 1310: 
 1311: sub get_dates_from_form {
 1312:     my $item = shift;
 1313:     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$item);
 1314:     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$item);
 1315:     return ($startdate,$enddate);
 1316: }
 1317: 
 1318: sub get_blockdates {
 1319:     my ($records,$blockcount) = @_;
 1320:     $$blockcount = 0;
 1321:     %{$records} = &Apache::lonnet::dump('comm_block',
 1322:                          $env{'course.'.$env{'request.course.id'}.'.domain'},
 1323:                          $env{'course.'.$env{'request.course.id'}.'.num'}
 1324:                          );
 1325:     $$blockcount = keys(%{$records});
 1326: 
 1327:     if ((keys(%{$records}))[0] =~ /^error: 2 /) {
 1328: 	$records = {};
 1329: 	$$blockcount = 0;
 1330:     }
 1331: }
 1332: 
 1333: sub display_blocker_status {
 1334:     my ($r,$records,$ltext) = @_;
 1335:     my $parmcount = 0;
 1336:   
 1337:     my %lt = &Apache::lonlocal::texthash(
 1338:         'modi' => 'Modify',
 1339:         'canc' => 'Cancel',
 1340:     );
 1341:     $r->print(&Apache::loncommon::start_data_table());
 1342:     $r->print(<<"END");
 1343:   <tr>
 1344:     <th>$$ltext{'dura'}</th>
 1345:     <th>$$ltext{'setb'}</th>
 1346:     <th>$$ltext{'even'}</th>
 1347:     <th>$$ltext{'actn'}?</th>
 1348:   </tr>
 1349: END
 1350:     foreach my $record (sort(keys(%{$records}))) {
 1351:         my $onchange = 'onFocus="javascript:window.document.forms['.
 1352:                        "'blockform'].elements['modify_".$parmcount."'].".
 1353:                        'checked=true;"';
 1354:         my ($start,$end) = split(/____/,$record);
 1355:         my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 1356:         my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 1357: 	
 1358: 	my ($setuname,$setudom,$title) = 
 1359: 	    &parse_block_record($$records{$record});
 1360: 	$title = &HTML::Entities::encode($title,'"<>');
 1361:         my $settername = &Apache::loncommon::plainname($setuname,$setudom);
 1362:         $r->print(&Apache::loncommon::start_data_table_row());
 1363:         $r->print(<<"END");
 1364:         <td>$$ltext{'star'}:&nbsp;$startform<br/>$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
 1365:         <td>$settername</td>
 1366:         <td><input type="text" name="title_$parmcount" size="15" value="$title" /><input type="hidden" name="key_$parmcount" value="$record" /></td>
 1367:         <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>
 1368: END
 1369:         $r->print(&Apache::loncommon::end_data_table_row());
 1370:         $parmcount++;
 1371:     }
 1372:     $r->print(<<"END");
 1373: </table>
 1374: <br />
 1375: <br />
 1376: END
 1377:     return $parmcount;
 1378: }
 1379: 
 1380: sub parse_block_record {
 1381:     my ($record) = @_;
 1382:     my ($setuname,$setudom,$title);
 1383:     my @data = split(/:/,$record,3);
 1384:     if (scalar(@data) eq 2) {
 1385: 	$title = $data[1];
 1386: 	($setuname,$setudom) = split(/@/,$data[0]);
 1387:     } else {
 1388: 	($setuname,$setudom,$title) = @data;
 1389:     }
 1390:     return ($setuname,$setudom,$title);
 1391: }
 1392: 
 1393: sub display_addblocker_table {
 1394:     my ($r,$parmcount,$ltext) = @_;
 1395:     my $start = time;
 1396:     my $end = $start + (60 * 60 * 2); #Default is an exam of 2 hours duration.
 1397:     my $onchange = 'onFocus="javascript:window.document.forms['.
 1398:                    "'blockform'].elements['add_".$parmcount."'].".
 1399:                    'checked=true;"';
 1400:     my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 1401:     my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 1402:     my %lt = &Apache::lonlocal::texthash(
 1403:         'addb' => 'Add block',
 1404:         'exam' => 'e.g., Exam 1',
 1405:         'addn' => 'Add new communication blocking periods'
 1406:     );
 1407:     $r->print(<<"END");
 1408: <h4>$lt{'addn'}</h4> 
 1409: END
 1410:     $r->print(&Apache::loncommon::start_data_table());
 1411:     $r->print(<<"END");
 1412:    <tr>
 1413:      <th>$$ltext{'dura'}</th>
 1414:      <th>$$ltext{'even'} $lt{'exam'}</th>
 1415:      <th>$$ltext{'actn'}?</th>
 1416:    </tr>
 1417: END
 1418:    $r->print(&Apache::loncommon::start_data_table_row());
 1419:     $r->print(<<"END");
 1420:      <td>$$ltext{'star'}:&nbsp;$startform<br />$$ltext{'endd'}:&nbsp;&nbsp;$endform</td>
 1421:      <td><input type="text" name="title_$parmcount" size="15" value="" /></td>
 1422:      <td><label>$lt{'addb'}?&nbsp;<input type="checkbox" name="add_$parmcount" value="1" /></label></td>
 1423: END
 1424:     $r->print(&Apache::loncommon::end_data_table_row());
 1425:     $r->print(&Apache::loncommon::end_data_table());
 1426:     return;
 1427: }
 1428: 
 1429: sub blockcheck {
 1430:     my ($setters,$startblock,$endblock) = @_;
 1431:     # Retrieve active student roles and active course coordinator/instructor roles
 1432:     my %live_courses =
 1433: 	map { $_ => 1} &Apache::loncommon::findallcourses();
 1434:     # FIXME should really probe for apriv, but ::allowed can only probe the 
 1435:     #       currently active role
 1436:     my %staff_of =
 1437: 	map { $_ => 1} &Apache::loncommon::findallcourses(['cc','in']);
 1438: 
 1439:     # Retrieve blocking times and identity of blocker for active courses
 1440:     # for students.
 1441:     return if (!%live_courses);
 1442: 
 1443:     foreach my $course (keys(%live_courses)) {
 1444: 	my $cdom = $env{'course.'.$course.'.domain'};
 1445: 	my $cnum = $env{'course.'.$course.'.num'};
 1446: 
 1447: 	# if they are a staff member and are currently not playing student
 1448: 	next if ( $staff_of{$course} 
 1449: 		  && ($env{'request.role'} !~ m{^st\./$cdom/$cnum}));
 1450: 
 1451: 	$setters->{$course} = {};
 1452: 	$setters->{$course}{'staff'} = [];
 1453: 	$setters->{$course}{'times'} = [];
 1454: 	my %records = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
 1455: 	foreach my $record (keys %records) {
 1456: 	    my ($start,$end) = ($record =~ m/^(\d+)____(\d+)$/);
 1457: 	    if ($start <= time && $end >= time) {
 1458: 		my ($staff_name,$staff_dom,$title) = 
 1459: 		    &parse_block_record($records{$record});
 1460: 		push(@{$$setters{$course}{'staff'}}, [$staff_name,$staff_dom]);
 1461: 		push(@{$$setters{$course}{'times'}}, [$start,$end]);
 1462: 		if ( ($$startblock == 0) || ($$startblock > $1) ) {
 1463: 		    $$startblock = $1;
 1464: 		}
 1465: 		if ( ($$endblock == 0) || ($$endblock < $2) ) {
 1466: 		    $$endblock = $2;
 1467: 		}
 1468: 	    }
 1469: 	}
 1470:     }
 1471: }
 1472: 
 1473: sub build_block_table {
 1474:     my ($r,$startblock,$endblock,$setters) = @_;
 1475:     my %lt = &Apache::lonlocal::texthash(
 1476:         'cacb' => 'Currently active communication blocks',
 1477:         'cour' => 'Course',
 1478:         'dura' => 'Duration',
 1479:         'blse' => 'Block set by'
 1480:     );
 1481:     $r->print(<<"END");
 1482: <br /><br />$lt{'cacb'}:<br /><br />
 1483: END
 1484:     $r->print(&Apache::loncommon::start_data_table());
 1485:     $r->print(<<"END");
 1486: <tr>
 1487:  <th>$lt{'cour'}</th>
 1488:  <th>$lt{'dura'}</th>
 1489:  <th>$lt{'blse'}</th>
 1490: </tr>
 1491: END
 1492:     foreach my $course (keys(%{$setters})) {
 1493:         my %courseinfo=&Apache::lonnet::coursedescription($course);
 1494:         for (my $i=0; $i<@{$$setters{$course}{staff}}; $i++) {
 1495:             my ($uname,$udom) = @{$$setters{$course}{staff}[$i]};
 1496:             my $fullname = &Apache::loncommon::plainname($uname,$udom);
 1497:             my ($openblock,$closeblock) = @{$$setters{$course}{times}[$i]};
 1498:             $openblock = &Apache::lonlocal::locallocaltime($openblock);
 1499:             $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
 1500:             $r->print(&Apache::loncommon::start_data_table_row().
 1501: 		      '<td>'.$courseinfo{'description'}.'</td>'.
 1502:                       '<td>'.$openblock.' to '.$closeblock.'</td>'.
 1503:                       '<td>'.$fullname.' ('.$uname.':'.$udom.
 1504:                       ')</td>'.
 1505: 		       &Apache::loncommon::end_data_table_row());
 1506:         }
 1507:     }
 1508:     $r->print(&Apache::loncommon::end_data_table());
 1509: }
 1510: 
 1511: # ----------------------------------------------------------- Display a message
 1512: 
 1513: sub displaymessage {
 1514:     my ($r,$msgid,$folder)=@_;
 1515:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
 1516:     my %blocked = ();
 1517:     my %setters = ();
 1518:     my $startblock = 0;
 1519:     my $endblock = 0;
 1520:     my $numblocked = 0;
 1521: # info to generate "next" and "previous" buttons and check if message is blocked
 1522:     &blockcheck(\%setters,\$startblock,\$endblock);
 1523:     my @messages=&sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder);
 1524:     if ( $blocked{$msgid} eq 'ON' ) {
 1525:         &printheader($r,'/adm/email',&mt('Display a Message'));
 1526:         $r->print(&mt('You attempted to display a message that is currently blocked because you are enrolled in one or more courses for which there is an ongoing online exam.'));
 1527:         &build_block_table($r,$startblock,$endblock,\%setters);
 1528:         return;
 1529:     }
 1530:     &statuschange($msgid,'read',$folder);
 1531:     my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 1532:     my %content=&Apache::lonmsg::unpackagemsg($message{$msgid});
 1533: 
 1534:     my $counter=0;
 1535:     $r->print('<pre>');
 1536:     my $escmsgid=&Apache::lonnet::escape($msgid);
 1537:     foreach (@messages) {
 1538: 	if ($_->[5] eq $escmsgid){
 1539: 	    last;
 1540: 	}
 1541: 	$counter++;
 1542:     }
 1543:     $r->print('</pre>');
 1544:     my $number_of_messages = scalar(@messages); #subtract 1 for last index
 1545: # start output
 1546:     &printheader($r,'/adm/email?display='.&Apache::lonnet::escape($msgid),'Display a Message','',$content{'baseurl'});
 1547:     my %courseinfo=&Apache::lonnet::coursedescription($content{'courseid'});
 1548: # Functions
 1549:     $r->print('<table border="2" width="100%"><tr bgcolor="#FFFFAA"><td>'.&mt('Functions').':</td>'.
 1550: 	      '<td><a href="/adm/email?replyto='.&Apache::lonnet::escape($msgid).$sqs.
 1551: 	      '"><b>'.&mt('Reply').'</b></a></td>'.
 1552: 	      '<td><a href="/adm/email?forward='.&Apache::lonnet::escape($msgid).$sqs.
 1553: 	      '"><b>'.&mt('Forward').'</b></a></td>'.
 1554: 	      '<td><a href="/adm/email?markunread='.&Apache::lonnet::escape($msgid).$sqs.
 1555: 	      '"><b>'.&mt('Mark Unread').'</b></a></td>'.
 1556: 	      '<td><a href="/adm/email?markdel='.&Apache::lonnet::escape($msgid).$sqs.
 1557: 	      '"><b>'.&mt('Delete').'</b></a></td>'.
 1558: 	      '<td><a href="/adm/email?'.$sqs.
 1559: 	      ($env{'form.dismode'} eq 'new'?'&folder=new':'').
 1560: 	      '"><b>'.&mt('Back to Folder Display').'</b></a></td>');
 1561:     if ($counter > 0){
 1562: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter-1]->[5].$sqs.
 1563: 		  '"><b>'.&mt('Previous').'</b></a></td>');
 1564:     }
 1565:     if ($counter < $number_of_messages - 1){
 1566: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter+1]->[5].$sqs.
 1567: 		  '"><b>'.&mt('Next').'</b></a></td>');
 1568:     }
 1569:     $r->print('</tr></table>');
 1570:     if ($env{'user.adv'}) {
 1571: 	$r->print('<table border="2" width="100%"><tr bgcolor="#FFAAAA"><td>'.&mt('Currently available actions (will open extra window)').':</td>');
 1572: 	my $symb=&Apache::lonnet::symbread($content{'baseurl'});      
 1573: 	if (&Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
 1574: 		$r->print('<td><b>'.&Apache::loncommon::track_student_link(&mt('View recent activity'),$content{'sendername'},$content{'senderdomain'},'check').'</b></td>');
 1575: 	    }
 1576: 	if (&Apache::lonnet::allowed('opa',$env{'request.course.id'}) && $symb) {
 1577: 	    $r->print('<td><b>'.&Apache::loncommon::pprmlink(&mt('Set/Change parameters'),$content{'sendername'},$content{'senderdomain'},$symb,'check').'</b></td>');
 1578: 	}
 1579: 	if (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}) && $symb) {
 1580: 	    $r->print('<td><b>'.&Apache::loncommon::pgrdlink(&mt('Set/Change grades'),$content{'sendername'},$content{'senderdomain'},$symb,'check').'</b></td>');
 1581: 	}
 1582: 	$r->print('</tr></table>');
 1583:     }
 1584:     my $tolist;
 1585:     my @recipients = ();
 1586:     for (my $i=0; $i<@{$content{'recuser'}}; $i++) {
 1587:         $recipients[$i] =  &Apache::loncommon::aboutmewrapper(
 1588:            &Apache::loncommon::plainname($content{'recuser'}[$i],
 1589:                                       $content{'recdomain'}[$i]),
 1590:               $content{'recuser'}[$i],$content{'recdomain'}[$i]).
 1591:        ' ('.$content{'recuser'}[$i].' at '.$content{'recdomain'}[$i].') ';
 1592:     }
 1593:     $tolist = join(', ',@recipients);
 1594:     $r->print('<br /><b>'.&mt('Subject').':</b> '.$content{'subject'}.
 1595: 	      ($folder ne 'sent'?'<br /><b>'.&mt('From').':</b> '.
 1596: 	      &Apache::loncommon::aboutmewrapper(
 1597: 						 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),
 1598: 						 $content{'sendername'},$content{'senderdomain'}).' ('.
 1599: 	      $content{'sendername'}.' at '.
 1600: 	      $content{'senderdomain'}.') ':'<br /><b>'.&mt('To').':</b> '.
 1601:               $tolist).
 1602: 	      ($content{'courseid'}?'<br /><b>'.&mt('Course').':</b> '.$courseinfo{'description'}.
 1603: 	       ($content{'coursesec'}?' ('.&mt('Group/Section').': '.$content{'coursesec'}.')':''):'').
 1604: 	      '<br /><b>'.&mt('Time').':</b> '.$content{'time'}.
 1605: 	      ($content{'baseurl'}?'<br /><b>'.&mt('Refers to').':</b> <a href="'.$content{'baseurl'}.'">'.
 1606: 	       $content{'baseurl'}.' ('.&Apache::lonnet::gettitle($content{'baseurl'}).')</a>':'').
 1607: 	      '<p><pre>'.
 1608: 	      &Apache::lontexconvert::msgtexconverted($content{'message'},1).
 1609: 	      '</pre><hr />'.&displayresource(%content).'</p>');
 1610:     return;   
 1611: }
 1612: 
 1613: # =========================================================== Show the citation
 1614: 
 1615: sub displayresource {
 1616:     my %content=@_;
 1617: #
 1618: # If the recipient is in the same course that the message was sent from and
 1619: # has sufficient privileges, show "all details," else show citation
 1620: #
 1621:     if (($env{'request.course.id'} eq $content{'courseid'})
 1622:      && (&Apache::lonnet::allowed('vgr',$content{'courseid'}))) {
 1623: 	my $symb=&Apache::lonnet::symbread($content{'baseurl'});
 1624: # Could not get a symb, give up
 1625: 	unless ($symb) { return $content{'citation'}; }
 1626: # Have a symb, can render
 1627: 	return '<h2>'.&mt('Current attempts of student (if applicable)').'</h2>'.
 1628: 	    &Apache::loncommon::get_previous_attempt($symb,
 1629: 						     $content{'sendername'},
 1630: 						     $content{'senderdomain'},
 1631: 						     $content{'courseid'}).
 1632: 	    '<hr /><h2>'.&mt('Current screen output (if applicable)').'</h2>'.
 1633: 	    &Apache::loncommon::get_student_view($symb,
 1634: 						 $content{'sendername'},
 1635: 						 $content{'senderdomain'},
 1636: 						 $content{'courseid'}).
 1637: 	    '<h2>'.&mt('Correct Answer(s) (if applicable)').'</h2>'.
 1638: 	    &Apache::loncommon::get_student_answers($symb,
 1639: 						    $content{'sendername'},
 1640: 						    $content{'senderdomain'},
 1641: 						    $content{'courseid'});
 1642:     } elsif ($env{'user.adv'}) {
 1643: 	return $content{'citation'};
 1644:     }
 1645:     return '';
 1646: }
 1647: 
 1648: # ================================================================== The Header
 1649: 
 1650: sub header {
 1651:     my ($r,$title,$baseurl)=@_;
 1652:     
 1653:     my $extra = &Apache::loncommon::studentbrowser_javascript();
 1654:     if ($baseurl) {
 1655: 	$extra .= "<base href=\"http://$ENV{'SERVER_NAME'}/$baseurl\" />";
 1656:     }
 1657:     $r->print(&Apache::loncommon::start_page('Communication and Messages',
 1658: 					     $extra));
 1659:     $r->print(&Apache::lonhtmlcommon::breadcrumbs
 1660: 	      (undef,($title?$title:'Communication and Messages')));
 1661: 
 1662: }
 1663: 
 1664: # ---------------------------------------------------------------- Print header
 1665: 
 1666: sub printheader {
 1667:     my ($r,$url,$desc,$title,$baseurl)=@_;
 1668:     &Apache::lonhtmlcommon::add_breadcrumb
 1669: 	({href=>$url,
 1670: 	  text=>$desc});
 1671:     &header($r,$title,$baseurl);
 1672: }
 1673: 
 1674: # ------------------------------------------------------------ Store the comment
 1675: 
 1676: sub storecomment {
 1677:     my ($r)=@_;
 1678:     my $msgtxt=&Apache::lonfeedback::clear_out_html($env{'form.message'});
 1679:     my $cleanmsgtxt='';
 1680:     foreach (split(/[\n\r]/,$msgtxt)) {
 1681: 	unless ($_=~/^\s*(\>|\&gt\;)/) {
 1682: 	    $cleanmsgtxt.=$_."\n";
 1683: 	}
 1684:     }
 1685:     my $key=&Apache::lonnet::escape($env{'form.baseurl'}).'___'.time;
 1686:     &Apache::lonnet::put('nohist_stored_comments',{ $key => $cleanmsgtxt });
 1687: }
 1688: 
 1689: sub storedcommentlisting {
 1690:     my ($r)=@_;
 1691:     my %msgs=&Apache::lonnet::dump('nohist_stored_comments',undef,undef,
 1692:        '^'.&Apache::lonnet::escape(&Apache::lonnet::escape($env{'form.showcommentbaseurl'})));
 1693:     $r->print(&Apache::loncommon::start_page('Stored Comment Listing',undef,
 1694: 					     {'onlybody' => 1}));
 1695:     if ((keys %msgs)[0]=~/^error\:/) {
 1696: 	$r->print(&mt('No stored comments yet.'));
 1697:     } else {
 1698: 	my $found=0;
 1699: 	foreach (sort keys %msgs) {
 1700: 	    $r->print("\n".$msgs{$_}."<hr />");
 1701: 	    $found=1;
 1702: 	}
 1703: 	unless ($found) {
 1704: 	    $r->print(&mt('No stored comments yet for this resource.'));
 1705: 	}
 1706:     }
 1707: }
 1708: 
 1709: # ---------------------------------------------------------------- Send an email
 1710: 
 1711: sub sendoffmail {
 1712:     my ($r,$folder)=@_;
 1713:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
 1714:     my $sendstatus='';
 1715:     my %specialmsg_status;
 1716:     my $numspecial = 0;
 1717:     if ($env{'form.send'}) {
 1718: 	&printheader($r,'','Messages being sent.');
 1719: 	$r->rflush();
 1720: 	my %content=();
 1721: 	undef %content;
 1722: 	if ($env{'form.forwid'}) {
 1723: 	    my $msgid=$env{'form.forwid'};
 1724: 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 1725: 	    %content=&Apache::lonmsg::unpackagemsg($message{$msgid},1);
 1726: 	    &statuschange($msgid,'forwarded',$folder);
 1727: 	    $env{'form.message'}.="\n\n-- Forwarded message --\n\n".
 1728: 		$content{'message'};
 1729: 	}
 1730: 	if ($env{'form.replyid'}) {
 1731: 	    my $msgid=$env{'form.replyid'};
 1732: 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 1733: 	    %content=&Apache::lonmsg::unpackagemsg($message{$msgid},1);
 1734: 	    &statuschange($msgid,'replied',$folder);
 1735: 	}
 1736: 
 1737: 	my %toaddr;
 1738: 	if ($env{'form.sendmode'} eq 'group') {
 1739: 	    foreach my $address (keys(%env)) {
 1740: 		if ($address=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
 1741: 		    $toaddr{$1}='';
 1742: 		}
 1743: 	    }
 1744: 	} elsif ($env{'form.sendmode'} eq 'upload') {
 1745: 	    foreach my $line (split(/[\n\r\f]+/,$env{'form.upfile'})) {
 1746: 		my ($rec,$txt)=split(/\s*\:\s*/,$line);
 1747: 		if ($txt) {
 1748: 		    $rec=~s/\@/\:/;
 1749: 		    $toaddr{$rec}.=$txt."\n";
 1750: 		}
 1751: 	    }
 1752: 	} else {
 1753: 	    $toaddr{$env{'form.recuname'}.':'.$env{'form.recdomain'}}='';
 1754: 	}
 1755: 	if ($env{'form.additionalrec'}) {
 1756: 	    foreach (split(/\,/,$env{'form.additionalrec'})) {
 1757: 		my ($auname,$audom)=split(/\@/,$_);
 1758: 		$toaddr{$auname.':'.$audom}='';
 1759: 	    }
 1760: 	}
 1761: 
 1762:         my $savemsg;
 1763:         my $msgtype;
 1764:         my %sentmessage;
 1765:         my $msgsubj=&Apache::lonfeedback::clear_out_html($env{'form.subject'},
 1766: 							 undef,1);
 1767:         if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
 1768:             (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1769: 	     || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1770: 					 '/'.$env{'request.course.sec'})
 1771: 	     )) {
 1772:             $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'},1);
 1773:             $msgtype = 'critical';
 1774:         } else {
 1775:             $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'});
 1776:         }
 1777: 	
 1778: 	foreach my $address (sort(keys(%toaddr))) {
 1779: 	    my ($recuname,$recdomain)=split(/\:/,$address);
 1780:             my $msgtxt = $savemsg;
 1781: 	    if ($toaddr{$address}) { $msgtxt.='<hr />'.$toaddr{$address}; }
 1782: 	    my @thismsg;
 1783: 	    if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) && 
 1784: 		(&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1785: 		 || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1786: 					     '/'.$env{'request.course.sec'}))) {
 1787: 		$r->print(&mt('Sending critical message').' '.$recuname.':'.$recdomain.': ');
 1788: 		@thismsg=
 1789: 		    &Apache::lonmsg::user_crit_msg($recuname,$recdomain,
 1790: 						   $msgsubj,$msgtxt,
 1791: 						   $env{'form.sendbck'},
 1792: 						   $env{'form.permanent'},
 1793: 						   \$sentmessage{$address});
 1794: 	    } else {
 1795: 		$r->print(&mt('Sending').' '.$recuname.':'.$recdomain.': ');
 1796: 		@thismsg=
 1797: 		    &Apache::lonmsg::user_normal_msg($recuname,$recdomain,
 1798: 						     $msgsubj,$msgtxt,
 1799: 						     $content{'citation'},
 1800: 						     undef,undef,
 1801: 						     $env{'form.permanent'},
 1802: 						     \$sentmessage{$address});
 1803:             }
 1804: 	    if (($env{'request.course.id'}) && (($msgtype eq 'critical') || 
 1805:                                          ($env{'form.sendmode'} eq 'group'))) {
 1806: 	        $specialmsg_status{$recuname.':'.$recdomain} =
 1807: 		    join(' ',@thismsg);
 1808: 		foreach my $result (@thismsg) {
 1809: 		    if ($result eq 'ok') {
 1810: 			$numspecial++;
 1811: 		    }
 1812: 		}
 1813: 	    }
 1814: 	    $sendstatus.=' '.join(' ',@thismsg);
 1815: 	}
 1816:         if (($env{'request.course.id'}) && (($env{'form.sendmode'} eq 'group')
 1817:                                               || ($msgtype eq 'critical'))) {
 1818:             my $subj_prefix;
 1819:             if ($msgtype eq 'critical') {
 1820:                 $subj_prefix = 'Critical.';
 1821:             } else {
 1822:                 $subj_prefix = 'Broadcast.';
 1823:             }
 1824:             my ($specialmsgid,$specialresult);
 1825:             my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 1826:             my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1827:             my $course_str = &Apache::lonnet::escape('['.$cnum.':'.$cdom.']');
 1828: 
 1829:             if ($numspecial) {
 1830:                 $specialresult = &Apache::lonmsg::user_normal_msg_raw($cnum,$cdom,$subj_prefix.
 1831:                     ' '.$course_str,$savemsg,undef,undef,undef,
 1832:                     undef,undef,\$specialmsgid);
 1833:                 $specialmsgid = &Apache::lonnet::unescape($specialmsgid);
 1834:             }
 1835:             if ($specialresult eq 'ok') {
 1836:                 my $record_sent;
 1837:                 my @recusers;
 1838:                 my @recudoms;
 1839:                 my ($stamp,$crssubj,$msgname,$msgdom,$msgcount,$context,$pid) =
 1840: 		    split(/\:/,&Apache::lonnet::unescape($specialmsgid));
 1841: 
 1842:                 foreach my $recipient (sort(keys(%toaddr))) {
 1843:                     if ($specialmsg_status{$recipient} eq 'ok') {
 1844:                         my $usersubj = $subj_prefix.'['.$recipient.']';
 1845:                         my $usermsgid = 
 1846: 			    &Apache::lonmsg::buildmsgid($stamp,$usersubj,
 1847: 							$msgname,$msgdom,
 1848: 							$msgcount,$context,
 1849: 							$pid);
 1850:                         &Apache::lonmsg::user_normal_msg_raw($cnum,$cdom,$subj_prefix.
 1851:                                              ' ['.$recipient.']',$msgsubj,undef,
 1852:                         undef,undef,undef,$usermsgid,undef,undef,$specialmsgid);
 1853:                         my ($uname,$udom) = split(/:/,$recipient);
 1854:                         push(@recusers,$uname);
 1855:                         push(@recudoms,$udom);
 1856:                     }
 1857:                 }
 1858:                 if (@recusers) {
 1859:                     my $specialmessage;
 1860:                     my $sentsubj = 
 1861: 			$subj_prefix.' ('.$numspecial.' sent) '.$msgsubj;
 1862:                     $sentsubj = &HTML::Entities::encode($sentsubj,'<>&"');
 1863:                     my $sentmsgid = 
 1864: 			&Apache::lonmsg::buildmsgid($stamp,$sentsubj,$msgname,
 1865: 						    $msgdom,$msgcount,$context,
 1866: 						    $pid);
 1867:                     ($specialmsgid,$specialmessage) = &Apache::lonmsg::packagemsg($msgsubj,$savemsg,
 1868:                             undef,undef,undef,\@recusers,\@recudoms,$sentmsgid);
 1869:                     $record_sent = &Apache::lonmsg::store_sent_mail($specialmsgid,$specialmessage);
 1870:                 }
 1871:             } else {
 1872:                 &Apache::lonnet::logthis('Failed to create record of critical message or broadcast in '.$env{'course.'.$env{'request.course.id'}.'.num'}.' at '.$env{'course.'.$env{'request.course.id'}.'.domain'}.' - no msgid generated');
 1873:             }
 1874:         }
 1875:     } else {
 1876: 	&printheader($r,'','No messages sent.'); 
 1877:     }
 1878:     if ($sendstatus=~/^(\s*(?:ok|con_delayed)\s*)*$/) {
 1879: 	$r->print('<br /><span class="LC_success">'.&mt('Completed.').'</span>');
 1880: 	if ($env{'form.displayedcrit'}) {
 1881: 	    &discrit($r);
 1882: 	} else {
 1883: 	    &Apache::loncommunicate::menu($r);
 1884: 	}
 1885:     } else {
 1886: 	$r->print('<p><span class="LC_error">'.&mt('Could not deliver message').'</span> '.
 1887: 		  &mt('Please use the browser "Back" button and correct the recipient addresses').'</p>');
 1888:     }
 1889: }
 1890: 
 1891: # ===================================================================== Handler
 1892: 
 1893: sub handler {
 1894:     my $r=shift;
 1895: 
 1896: # ----------------------------------------------------------- Set document type
 1897:     
 1898:     &Apache::loncommon::content_type($r,'text/html');
 1899:     $r->send_http_header;
 1900:     
 1901:     return OK if $r->header_only;
 1902:     
 1903: # --------------------------- Get query string for limited number of parameters
 1904:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 1905:         ['display','replyto','forward','markread','markdel','markunread',
 1906:          'sendreply','compose','sendmail','critical','recname','recdom',
 1907:          'recordftf','sortedby','block','folder','startdis','interdis',
 1908: 	 'showcommentbaseurl','dismode','group']);
 1909:     $sqs='&sortedby='.$env{'form.sortedby'};
 1910: 
 1911: # ------------------------------------------------------ They checked for email
 1912:     unless ($env{'form.block'}) {
 1913:         &Apache::lonnet::put('email_status',{'recnewemail'=>0});
 1914:     }
 1915: 
 1916: # ----------------------------------------------------------------- Breadcrumbs
 1917: 
 1918:     &Apache::lonhtmlcommon::clear_breadcrumbs();
 1919:     &Apache::lonhtmlcommon::add_breadcrumb
 1920:         ({href=>"/adm/communicate",
 1921:           text=>"Communication/Messages",
 1922:           faq=>12,bug=>'Communication Tools',});
 1923: 
 1924: # ------------------------------------------------------------------ Get Folder
 1925: 
 1926:     my $folder=$env{'form.folder'};
 1927:     unless ($folder) { 
 1928: 	$folder=''; 
 1929:     } else {
 1930: 	$sqs.='&folder='.&Apache::lonnet::escape($folder);
 1931:     }
 1932: # ------------------------------------------------------------ Get Display Mode
 1933: 
 1934:     my $dismode=$env{'form.dismode'};
 1935:     unless ($dismode) { 
 1936: 	$dismode=''; 
 1937:     } else {
 1938: 	$sqs.='&dismode='.&Apache::lonnet::escape($dismode);
 1939:     }
 1940: 
 1941: # --------------------------------------------------------------------- Display
 1942: 
 1943:     $startdis=$env{'form.startdis'};
 1944:     $startdis--;
 1945:     unless ($startdis) { $startdis=0; }
 1946: 
 1947:     $interdis=$env{'form.interdis'};
 1948:     unless ($interdis) { $interdis=20; }
 1949:     $sqs.='&interdis='.$interdis;
 1950: 
 1951:     if ($env{'form.firstview'}) {
 1952: 	$startdis=0;
 1953:     }
 1954:     if ($env{'form.lastview'}) {
 1955: 	$startdis=-1;
 1956:     }
 1957:     if ($env{'form.prevview'}) {
 1958: 	$startdis--;
 1959:     }
 1960:     if ($env{'form.nextview'}) {
 1961: 	$startdis++;
 1962:     }
 1963:     my $postedstartdis=$startdis+1;
 1964:     $sqs.='&startdis='.$postedstartdis;
 1965: 
 1966: # --------------------------------------------------------------- Render Output
 1967: 
 1968:     if ($env{'form.display'}) {
 1969: 	&displaymessage($r,$env{'form.display'},$folder);
 1970:     } elsif ($env{'form.replyto'}) {
 1971: 	&compout($r,'',$env{'form.replyto'},undef,undef,$folder,$dismode);
 1972:     } elsif ($env{'form.confirm'}) {
 1973: 	&printheader($r,'','Confirmed Receipt');
 1974: 	foreach (keys %env) {
 1975: 	    if ($_=~/^form\.rec\_(.*)$/) {
 1976: 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
 1977: 			  &Apache::lonmsg::user_crit_received($1).'<br>');
 1978: 	    }
 1979: 	    if ($_=~/^form\.reprec\_(.*)$/) {
 1980: 		my $msgid=$1;
 1981: 		$r->print('<b>'.&mt('Confirming Receipt').':</b> '.
 1982: 			  &Apache::lonmsg::user_crit_received($msgid).'<br>');
 1983: 		&compout($r,'','','',$msgid);
 1984: 	    }
 1985: 	}
 1986: 	&discrit($r);
 1987:     } elsif ($env{'form.critical'}) {
 1988: 	&printheader($r,'','Displaying Critical Messages');
 1989: 	&discrit($r);
 1990:     } elsif ($env{'form.forward'}) {
 1991: 	&compout($r,$env{'form.forward'},undef,undef,undef,$folder);
 1992:     } elsif ($env{'form.markdel'}) {
 1993: 	&printheader($r,'','Deleted Message');
 1994: 	my ($result,$msg) = 
 1995: 	    &statuschange($env{'form.markdel'},'deleted',$folder);
 1996: 	if (!$result) {
 1997: 	    $r->print('<p class="LC_error">'.
 1998: 		      &mt('Failed to delete the message.').'</p>'.
 1999: 		      '<p class="LC_error">'.$msg."</p>\n");
 2000: 	}
 2001: 	&Apache::loncommunicate::menu($r);
 2002: 	&disall($r,($folder?$folder:$dismode));
 2003:     } elsif ($env{'form.markedmove'}) {
 2004: 	my ($total,$failed,@failed_msg)=(0,0);
 2005: 	foreach my $key (keys(%env)) {
 2006: 	    if ($key=~/^form\.delmark_(.*)$/) {
 2007: 		my ($result,$msg) =
 2008: 		    &movemsg(&Apache::lonnet::unescape($1),$folder,
 2009: 			     $env{'form.movetofolder'});
 2010: 		if ($result) {
 2011: 		    $total++;
 2012: 		} else {
 2013: 		    $failed++;
 2014: 		    push(@failed_msg,$msg);
 2015: 		}
 2016: 	    }
 2017: 	}
 2018: 	&printheader($r,'','Moved Messages');
 2019: 	if ($failed) {
 2020: 	    $r->print('<p class="LC_error">
 2021:                           '.&mt('Failed to move [_1] message(s)',$failed).
 2022: 		      '</p>');
 2023: 	    $r->print('<p class="LC_error">'.
 2024: 		      join("</p>\n<p class=\"LC_error\">",@failed_msg).
 2025: 		      "</p>\n");
 2026: 	}
 2027: 	$r->print(&mt('Moved [_1] message(s)',$total).'<p>');
 2028: 	&Apache::loncommunicate::menu($r);
 2029: 	&disall($r,($folder?$folder:$dismode));
 2030:     } elsif ($env{'form.markeddel'}) {
 2031: 	my ($total,$failed,@failed_msg)=(0,0);
 2032: 	foreach my $key (keys(%env)) {
 2033: 	    if ($key=~/^form\.delmark_(.*)$/) {
 2034: 		my ($result,$msg) = 
 2035: 		    &statuschange(&Apache::lonnet::unescape($1),'deleted',
 2036: 				  $folder);
 2037: 		if ($result) {
 2038: 		    $total++;
 2039: 		} else {
 2040: 		    $failed++;
 2041: 		    push(@failed_msg,$msg);
 2042: 		}
 2043: 	    }
 2044: 	}
 2045: 	&printheader($r,'','Deleted Messages');
 2046: 	if ($failed) {
 2047: 	    $r->print('<p class="LC_error">
 2048:                           '.&mt('Failed to delete [_1] message(s)',$failed).
 2049: 		      '</p>');
 2050: 	    $r->print('<p class="LC_error">'.
 2051: 		      join("</p>\n<p class=\"LC_error\">",@failed_msg).
 2052: 		      "</p>\n");
 2053: 	}
 2054: 	$r->print(&mt('Deleted [_1] message(s)',$total).'<p>');
 2055: 	&Apache::loncommunicate::menu($r);
 2056: 	&disall($r,($folder?$folder:$dismode));
 2057:     } elsif ($env{'form.markunread'}) {
 2058: 	&printheader($r,'','Marked Message as Unread');
 2059: 	&statuschange($env{'form.markunread'},'new');
 2060: 	&Apache::loncommunicate::menu($r);
 2061: 	&disall($r,($folder?$folder:$dismode));
 2062:     } elsif ($env{'form.compose'}) {
 2063: 	&compout($r,'','',$env{'form.compose'});
 2064:     } elsif ($env{'form.recordftf'}) {
 2065: 	&facetoface($r,$env{'form.recordftf'});
 2066:     } elsif ($env{'form.block'}) {
 2067:         &examblock($r,$env{'form.block'});
 2068:     } elsif ($env{'form.sendmail'}) {
 2069: 	&sendoffmail($r,$folder);
 2070: 	if ($env{'form.storebasecomment'}) {
 2071: 	    &storecomment($r);
 2072: 	}
 2073: 	if (($env{'form.rsspost'}) && ($env{'request.course.id'})) {
 2074: 	    &Apache::lonrss::addentry($env{'course.'.$env{'request.course.id'}.'.num'},
 2075: 				      $env{'course.'.$env{'request.course.id'}.'.domain'},
 2076: 				      'Course_Announcements',
 2077: 				      $env{'form.subject'},
 2078: 				      $env{'form.message'},'/adm/communicate','public');
 2079: 	}
 2080: 	&disall($r,($folder?$folder:$dismode));
 2081:     } elsif ($env{'form.newfolder'}) {
 2082: 	&printheader($r,'','New Folder');
 2083: 	&makefolder($env{'form.newfolder'});
 2084: 	&Apache::loncommunicate::menu($r);
 2085: 	&disall($r,$env{'form.newfolder'});
 2086:     } elsif ($env{'form.showcommentbaseurl'}) {
 2087: 	&storedcommentlisting($r);
 2088:     } else {
 2089: 	&printheader($r,'','Display All Messages');
 2090: 	&Apache::loncommunicate::menu($r); 
 2091: 	&disall($r,($folder?$folder:$dismode));
 2092:     }
 2093:     $r->print(&Apache::loncommon::end_page());
 2094:     return OK;
 2095: }
 2096: # ================================================= Main program, reset counter
 2097: 
 2098: =pod
 2099: 
 2100: =back
 2101: 
 2102: =cut
 2103: 
 2104: 1; 
 2105: 
 2106: __END__
 2107: 
 2108: 
 2109: 
 2110: 
 2111: 
 2112: 
 2113: 

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