File:  [LON-CAPA] / loncom / interface / lonmsgdisplay.pm
Revision 1.94: download - view: text, annotated - select for diffs
Thu Oct 23 10:15:37 2008 UTC (15 years, 6 months ago) by bisitz
Branches: MAIN
CVS tags: HEAD
Optimized Send button texts for internal messages
- Made translation of button text possible/practical: first concatenate, then translate. Added comments.
- Replaced "Mail" with "Message": A LON-CAPA internal message is a "Message", not a "Mail". Usage of "Mail" only in external e-mail context recommended.
- Use only "Send Message", not "Send New Message" - this has more confused than it has helped

    1: # The LearningOnline Network with CAPA
    2: # Routines for messaging display
    3: #
    4: # $Id: lonmsgdisplay.pm,v 1.94 2008/10/23 10:15:37 bisitz 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::lonmsgdisplay: supports internal messaging
   37: 
   38: =head1 SYNOPSIS
   39: 
   40: lonmsgdisplay provides a handler to allow users to read, send, 
   41: and delete messages, and to create and delete message folders,
   42: and to move messages between folders.
   43: 
   44: =head1 OVERVIEW
   45: 
   46: =head2 Messaging Overview
   47: 
   48: X<messages>LON-CAPA provides an internal messaging system similar to
   49: email, but customized for LON-CAPA's usage. LON-CAPA implements its
   50: own messaging system, rather then building on top of email, because of
   51: the features LON-CAPA messages can offer that conventional e-mail can
   52: not:
   53: 
   54: =over 4
   55: 
   56: =item * B<Critical messages>: A message the recipient B<must>
   57: acknowlegde receipt of before they are allowed to continue using the
   58: system, preventing a user from claiming they never got a message
   59: 
   60: =item * B<Receipts>: LON-CAPA can reliably send reciepts informing the
   61: sender that it has been read; again, useful for preventing students
   62: from claiming they did not see a message. (While conventional e-mail
   63: has some reciept support, it's sporadic, e-mail client-specific, and
   64: generally the receiver can opt to not send one, making it useless in
   65: this case.)
   66: 
   67: =item * B<Context>: LON-CAPA knows about the sender, such as where
   68: they are in a course. When a student mails an instructor asking for
   69: help on the problem, the instructor receives not just the student's
   70: question, but all submissions the student has made up to that point,
   71: the user's rendering of the problem, and the complete view the student
   72: saw of the resource, including discussion up to that point. Finally,
   73: the instructor is reading all of this inside of LON-CAPA, not their
   74: email program, so they have full access to LON-CAPA's grading
   75: interface, or other features they may wish to use in response to the
   76: student's query.
   77: 
   78: =item * B<Blocking>: LON-CAPA can block selected communication 
   79: features for students during an online exam. A course coordinator or
   80: instructor can set an open and close date/time for scheduled online
   81: exams in a course. If a user uses the LON-CAPA internal messaging 
   82: system to display e-mails during the scheduled blocking event,  
   83: display of all e-mail sent during the blocking period will be 
   84: suppressed, and a message of explanation, including details of the 
   85: currently active blocking periods will be displayed instead. A user 
   86: who has a course coordinator or instructor role in a course will be
   87: unaffected by any blocking periods for the course, unless the user
   88: also has a student role in the course, AND has selected the student role.
   89: 
   90: =back
   91: 
   92: Users can ask LON-CAPA to forward messages to conventional e-mail
   93: addresses on their B<PREF> screen, but generally, LON-CAPA messages
   94: are much more useful than traditional email can be made to be, even
   95: with HTML support.
   96: 
   97: =cut
   98: 
   99: use strict;
  100: use Apache::lonnet;
  101: use HTML::TokeParser();
  102: use Apache::Constants qw(:common);
  103: use Apache::loncommon();
  104: use Apache::lonhtmlcommon();
  105: use Apache::lontexconvert();
  106: use HTML::Entities();
  107: use Apache::lonlocal;
  108: use Apache::loncommunicate;
  109: use Apache::lonfeedback;
  110: use Apache::lonrss();
  111: use Apache::lonselstudent();
  112: use lib '/home/httpd/lib/perl/';
  113: use LONCAPA;
  114: 
  115: # Querystring component with sorting type
  116: my $sqs;
  117: my $startdis;
  118: 
  119: # ============================================================ List all folders
  120: 
  121: sub folderlist {
  122:     my ($folder,$msgstatus) = @_;
  123:     my %lt = &Apache::lonlocal::texthash(
  124:                 actn => 'Action',
  125:                 fold => 'Folder',
  126:                 show => 'Show',
  127:                 status => 'Message Status',
  128:                 go   => 'Go',
  129:                 nnff => 'New Name for Folder',
  130:                 newn => 'New Name',
  131:                 thfm => 'The folder may not be renamed',
  132:                 fmnb => 'folder may not be renamed as it is a folder provided by the system.',
  133:                 asth => 'as this name is already in use for a system-provided or user-defined folder.',
  134:                 the => 'The',
  135:                 tnfm => 'The new folder may not be named',
  136: 
  137:     );
  138: 
  139:     my %actions = &Apache::lonlocal::texthash(
  140:                                 view => 'View Folder',
  141:                                 rename => 'Rename Folder',
  142:                                 delete => 'Delete Folder',
  143:     );
  144:     $actions{'select_form_order'} = ['view','rename','delete'];
  145: 
  146:     my %statushash = &get_msgstatus_types();
  147: 
  148:     $statushash{'select_form_order'} = ['','new','read','replied','forwarded'];
  149: 
  150:     my %permfolders = &get_permanent_folders();
  151:     my $permlist = join("','",sort(keys(%permfolders)));
  152:     my ($permlistkeys,$permlistvals);
  153:     foreach my $key (sort(keys(%permfolders))) {
  154:         $permlistvals .= $permfolders{$key}."','";
  155:         $permlistkeys .= $key."','";
  156:     }
  157:     $permlistvals =~ s/','$//;
  158:     $permlistkeys =~ s/','$//;
  159:     my %gotfolders = &Apache::lonmsg::get_user_folders();
  160:     my %userfolders;
  161: 
  162:     foreach my $key (keys(%gotfolders)) {
  163:         $key =~ s/(['"])/\$1/g; #' stupid emacs
  164:         $userfolders{$key} = $key;
  165:     }
  166:     my @userorder = sort(keys(%userfolders));
  167:     my %formhash = (%permfolders,%userfolders);
  168:     my $folderlist = join("','",@userorder);
  169:     $folderlist .= "','".$permlistvals;
  170: 
  171:     $formhash{'select_form_order'} = ['','critical',@userorder,'sent','trash'];
  172:     my $output = qq|<script type="text/javascript">
  173: function folder_choice(targetform,caller) {
  174:     var permfolders_keys = new Array('$permlistkeys');
  175:     var permfolders_vals = new Array('$permlistvals');
  176:     var allfolders = new Array('$folderlist');
  177:     if (caller == 'change') {
  178:         if (targetform.folderaction.options[targetform.folderaction.selectedIndex].value == 'rename') {
  179:             for (var i=0; i<permfolders_keys.length; i++) {
  180:                 if (permfolders_keys[i] == targetform.folder.value) {
  181:                     alert("$lt{'the'} '"+permfolders_vals[i]+"' $lt{'fmnb'}");
  182:                     return;
  183:                 }
  184:             }
  185:             var foldername=prompt('$lt{'nnff'}','$lt{'newn'}');
  186:             if (foldername) {
  187:                 targetform.renamed.value=foldername;
  188:                 for (var i=0; i<allfolders.length; i++) {
  189:                     if (allfolders[i] == foldername) {
  190:                         alert("$lt{'thfm'} '"+foldername+"' $lt{'asth'}");
  191:                         return;
  192:                     }
  193:                 }
  194:                 targetform.submit();
  195:             }
  196:         }
  197:         else {
  198:             targetform.submit();
  199:         }
  200:     }
  201:     if (caller == 'new') {
  202:         var newname=targetform.newfolder.value;
  203:         if (newname) {
  204:             for (var i=0; i<allfolders.length; i++) {
  205:                 if (allfolders[i] == newname) {
  206:                     alert("$lt{'tnfm'} '"+newname+"' $lt{'asth'}");
  207:                     return;
  208:                 }
  209:             }
  210:             targetform.submit();
  211:         }
  212:     }
  213: }
  214: </script>|;
  215:     my %show = ('select_form_order' => [10,20,50,100,200],
  216: 		map {$_=>$_} (10,20,50,100,200));
  217: 		
  218: 		   
  219:     $output .= '
  220: <form method="post" action="/adm/email" name="folderlist">
  221: <table border="0" cellspacing="2" cellpadding="2">
  222:  <tr>
  223:   <td align="left">
  224:    <table border="0" cellspacing="2" cellpadding="2">
  225:     <tr>
  226:      <td align="center"><b>'.$lt{'fold'}.'</b><br />'."\n".
  227:          &Apache::loncommon::select_form($folder,'folder',%formhash).'
  228:      </td>
  229:      <td align="center"><b>'.$lt{'show'}.'</b><br />'."\n".
  230:          &Apache::loncommon::select_form($env{'form.interdis'},'interdis',
  231: 					 %show).'
  232:      </td>
  233:      <td align="center"><b>'.$lt{'status'}.'</b><br />'."\n".
  234:        &Apache::loncommon::select_form($msgstatus,'msgstatus',%statushash).'
  235:      </td>
  236:      <td align="center"><b>'.$lt{'actn'}.'</b><br />'.
  237:          &Apache::loncommon::select_form('view','folderaction',%actions).'
  238:      </td><td><br />'.
  239:     '<input type="button" value="'.$lt{'go'}.'" onClick="javascript:folder_choice(this.form,'."'change'".');" />
  240:      </td>
  241:     </tr>
  242:    </table>
  243:   </td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>
  244:   <td align="right">
  245:    <table><tr><td><br />
  246:     <input type="button" value="'.&mt('Make New Folder').
  247:     '" onClick="javascript:folder_choice(this.form,'."'new'".');" /></td>'.
  248:     '<td align="center"><b>'.&mt('New Folder').'</b><br />'.
  249:     '<input type="text" size="15" name="newfolder" value="" />
  250:     </td></tr></table>
  251:   </td>
  252:  </tr>
  253: </table>'."\n".
  254:     '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" />'.
  255:     '<input type="hidden" name="renamed" value="" />'.
  256:         ($folder=~/^critical/?'</form>':'');
  257:     return $output;
  258: }
  259: 
  260: sub get_permanent_folders {
  261:     my %permfolders = 
  262: 	&Apache::lonlocal::texthash(''         => 'INBOX',
  263: 				    'trash'    => 'TRASH',
  264: 				    'critical' => 'Critical',
  265: 				    'sent'     => 'Sent Messages',
  266: 				    );
  267:     return %permfolders;
  268: }
  269: 
  270: sub get_msgstatus_types {
  271:     my %statushash = &Apache::lonlocal::texthash(
  272:                                 '' => 'Any',
  273:                                 new => 'Unread',
  274:                                 read => 'Read',
  275:                                 replied => 'Replied to',
  276:                                 forwarded => 'Forwarded',
  277:     );
  278:     return %statushash;
  279: }
  280: 
  281: sub scrollbuttons {
  282:     my ($start,$maxdis,$first,$finish,$total,$msgstatus)=@_;
  283:     unless ($total>0) { return ''; }
  284:     $start++; $maxdis++;$first++;$finish++;
  285: 
  286:     my %statushash = &get_msgstatus_types();
  287:     my $status;
  288:     if ($msgstatus eq '') {
  289:         $status = &mt('All');
  290:     } else {
  291:         $status = $statushash{$msgstatus};
  292:     }
  293:     return
  294:    '<b>'.&mt('Page').'</b>: '. 
  295:    '<input type="submit" name="firstview" value="'.&mt('First').'" />'.
  296:    '<input type="submit" name="prevview" value="'.&mt('Previous').'" />'.
  297:    '<input type="text" size="5" name="startdis" value="'.$start.'" onChange="this.form.submit()" /> of '.$maxdis.
  298:    '<input type="submit" name="nextview" value="'.&mt('Next').'" />'.
  299:    '<input type="submit" name="lastview" value="'.&mt('Last').'" /><br />'.
  300:    &mt('<b>[_1] messages</b>: showing messages [_2] through [_3] of [_4].',$status,$first,$finish,$total).'</form>';
  301: }
  302: # =============================================================== Status Change
  303: 
  304: sub statuschange {
  305:     my ($msgid,$newstatus,$folder)=@_;
  306:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
  307:     my %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
  308:     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
  309:     unless ($status{$msgid}) { $status{$msgid}='new'; }
  310:     unless (($status{$msgid} eq 'replied') || 
  311:             ($status{$msgid} eq 'forwarded')) {
  312: 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
  313:     }
  314:     if (($newstatus eq 'deleted') || ($newstatus eq 'new')) {
  315: 	&Apache::lonnet::put('email_status'.$suffix,{$msgid => $newstatus});
  316:     }
  317:     if ($newstatus eq 'deleted') {
  318: 	return &movemsg($msgid,$folder,'trash');
  319:     }
  320:     return ;
  321: }
  322: 
  323: # ============================================================= Make new folder
  324: 
  325: sub makefolder {
  326:     my ($newfolder) = @_;
  327:     my %permfolders = &get_permanent_folders();
  328:     my %userfolders = &Apache::lonmsg::get_user_folders();
  329:     my ($outcome,$warning);
  330:     if (defined($userfolders{$newfolder})) {
  331:         return &mt('The folder name: "[_1]" is already in use for an existing folder.',$newfolder);
  332:     }
  333:     foreach my $perm (keys(%permfolders)) {
  334:         if ($permfolders{$perm} eq $newfolder) {
  335:             return &mt('The folder name: "[_1]" is already used for one of the folders automatically generated by the system.',$newfolder);
  336:         }
  337:     } 
  338:     if (&get_msgfolder_lock() eq 'ok') {
  339:         my %counter_hash = &Apache::lonnet::get('email_folders',["\0".'idcount']);
  340:         my $lastcount = $counter_hash{"\0".'idcount'};
  341:         my $folder_id = $lastcount + 1;
  342:         while (defined($userfolders{$folder_id})) {
  343:             $folder_id ++;
  344:         }
  345:         my %folderinfo = ( id      => $folder_id,
  346:                            created => time, );
  347:         $outcome =  
  348: 	    &Apache::lonnet::put('email_folders',{$newfolder => \%folderinfo,
  349: 						  "\0".'idcount' => $folder_id});
  350:         my $releaseresult = &release_msgfolder_lock();
  351:         if ($releaseresult ne 'ok') {
  352:             $warning = $releaseresult;
  353:         }
  354:     } else {
  355:         $outcome = 
  356: 	    &mt('Error - could not obtain lock on email folders record.');
  357:     }
  358:     return ($outcome,$warning);
  359: }
  360: 
  361: # ============================================================= Delete folder
  362: 
  363: sub deletefolder {
  364:     my ($folder)=@_;
  365:     my %permfolders = &get_permanent_folders();
  366:     if (defined($permfolders{$folder})) {
  367:         return &mt('The folder "[_1]" may not be deleted',$folder); 
  368:     }
  369:     my %userfolders = &Apache::lonmsg::get_user_folders();
  370:     if (!defined($userfolders{$folder})) {
  371:         return &mt('The folder "[_1]" does not exist so deletion is not required.',
  372:                    $folder);
  373:     }
  374:     # check folder is empty;
  375:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
  376:     my @messages = &Apache::lonnet::getkeys('nohist_email'.$suffix);
  377:     if (@messages > 0) {
  378:         return &mt('The folder "[_1]" contains messages so it may not be deleted.',$folder).
  379:                '<br />'.
  380:                &mt('Delete or move the messages to a different folder first.');
  381:     }
  382:     my $delresult = &Apache::lonnet::del('email_folders',[$folder]);
  383:     return $delresult;
  384: }
  385: 
  386: sub renamefolder {
  387:     my ($folder) = @_;
  388:     my $newname = $env{'form.renamed'};
  389:     my %permfolders = &get_permanent_folders();
  390:     if ($env{'form.renamed'} eq '') {
  391:         return &mt('The folder "[_1]" may not be renamed to "[_2]" as the new name you requested is an invalid name.',$folder,$newname);
  392:     }
  393:     if (defined($permfolders{$folder})) {
  394:         return &mt('The folder "[_1]" may not be renamed as it is a folder provided by the system.',$folder);
  395:     }
  396:     if (defined($permfolders{$newname})) {
  397:         return &mt('The folder "[_1]" may not be renamed to "[_2]" as the new name you requested is reserved for folders provided automatically by the system.',$folder,$newname);
  398:     }
  399:     my %userfolders = &Apache::lonmsg::get_user_folders();
  400:     if (defined($userfolders{$newname})) {
  401:         return &mt('The folder "[_1]" may not be renamed to "[_2]" because the new name you requested is already being used for an existing folder.',$folder,$newname);
  402:     }
  403:     if (!defined($userfolders{$folder})) {
  404:         return &mt('The folder "[_1]" could not be renamed to "[_2]" because the folder does not exist.',$folder,$newname);
  405:     }
  406:     my %folderinfo;
  407:     if (ref($userfolders{$folder}) eq 'HASH') {
  408:         %folderinfo = %{$userfolders{$folder}};
  409:     } else {
  410:         %folderinfo = ( id      => $folder,
  411:                         created => $userfolders{$folder},);
  412:     }
  413:     my $outcome =
  414:      &Apache::lonnet::put('email_folders',{$newname => \%folderinfo});
  415:     if ($outcome eq 'ok') {
  416:         $outcome = &Apache::lonnet::del('email_folders',[$folder]);
  417:     }
  418:     return $outcome;
  419: }
  420: 
  421: sub get_msgfolder_lock {
  422:     # get lock for mail folder counter.
  423:     my $lockhash = { "\0".'lock_counter' => time, };
  424:     my $tries = 0;
  425:     my $gotlock = &Apache::lonnet::newput('email_folders',$lockhash);
  426:     while (($gotlock ne 'ok') && $tries <3) {
  427:         $tries ++;
  428:         sleep(1);
  429:         $gotlock = &Apache::lonnet::newput('email_folders',$lockhash);
  430:     }
  431:     return $gotlock;
  432: }
  433: 
  434: sub release_msgfolder_lock {
  435:     #  remove lock
  436:     my @del_lock = ("\0".'lock_counter');
  437:     my $dellockoutcome=&Apache::lonnet::del('email_folders',\@del_lock);
  438:     if ($dellockoutcome ne 'ok') {
  439:         return ('<br />'.&mt('Warning: failed to release lock for counter').'<br />');
  440:     } else {
  441:         return 'ok';
  442:     }
  443: }
  444: 
  445: 
  446: # ======================================================== Move between folders
  447: 
  448: sub movemsg {
  449:     my ($msgid,$srcfolder,$trgfolder)=@_;
  450:     if ($srcfolder eq 'new') { $srcfolder=''; }
  451:     my $srcsuffix=&Apache::lonmsg::foldersuffix($srcfolder);
  452:     my $trgsuffix=&Apache::lonmsg::foldersuffix($trgfolder);
  453:     if ($srcsuffix eq $trgsuffix) {
  454: 	return (0,&mt('Message not moved, Attempted to move message to the same folder as it already is in.'));
  455:     }
  456: 
  457: # Copy message
  458:     my %message=&Apache::lonnet::get('nohist_email'.$srcsuffix,[$msgid]);
  459:     if (!exists($message{$msgid}) || $message{$msgid} eq '') {
  460: 	if (&Apache::lonnet::error(%message)) {
  461: 	    return (0,&mt('Message not moved, A network error occurred.'));
  462: 	} else {
  463: 	    return (0,&mt('Message not moved as the message is no longer in the source folder.'));
  464: 	}
  465:     }
  466: 
  467:     my $result =&Apache::lonnet::put('nohist_email'.$trgsuffix,
  468: 				     {$msgid => $message{$msgid}});
  469:     if (&Apache::lonnet::error($result)) {
  470: 	return (0,&mt('Message not moved, A network error occurred.'));
  471:     }
  472: 
  473: # Copy status
  474:     unless ($trgfolder eq 'trash') {
  475:        	my %status=&Apache::lonnet::get('email_status'.$srcsuffix,[$msgid]);
  476: 	# a non-existant status is the mark of an unread msg
  477: 	if (&Apache::lonnet::error(%status)) {
  478: 	    return (0,&mt('Message copied to new folder but status was not, A network error occurred.'));
  479: 	}
  480: 	my $result=&Apache::lonnet::put('email_status'.$trgsuffix,
  481: 					{$msgid => $status{$msgid}});
  482: 	if (&Apache::lonnet::error($result)) {
  483: 	    return (0,&mt('Message copied to new folder but status was not, A network error occurred.'));
  484: 	}
  485:     }
  486: 
  487: # Delete orginals
  488:     my $result_del_msg = 
  489: 	&Apache::lonnet::del('nohist_email'.$srcsuffix,[$msgid]);
  490:     my $result_del_stat =
  491: 	&Apache::lonnet::del('email_status'.$srcsuffix,[$msgid]);
  492:     if (&Apache::lonnet::error($result_del_msg)) {
  493: 	return (0,&mt('Message copied, but unable to delete the original from the source folder.'));
  494:     }
  495:     if (&Apache::lonnet::error($result_del_stat)) {
  496: 	return (0,&mt('Message copied, but unable to delete the original status from the source folder.'));
  497:     }
  498: 
  499:     return (1);
  500: }
  501: 
  502: # ======================================================= Display a course list
  503: 
  504: sub discourse {
  505:     my $result;
  506:     my ($course_personnel,
  507: 	$current_members,
  508: 	$expired_members,
  509: 	$future_members) = 
  510: 	    &Apache::lonselstudent::get_people_in_class($env{'request.course.sec'});
  511:     unshift @$current_members, (@$course_personnel);
  512:     my %defaultUsers;
  513:     
  514:     $result .= '<input type="hidden" name="sendmode" value="group" />'."\n";
  515: 
  516:     my $tmptext;
  517:     if ($tmptext = &Apache::lonselstudent::render_student_list($current_members,
  518:                                                                "compemail",
  519:                                                                "current",
  520:                                                                \%defaultUsers,
  521:                                                                1,"selectedusers",1)
  522:        ) {
  523:        $result .= '<h2>'.&mt('Course members with current access').'</h2>';
  524:        $result .= $tmptext;
  525:     }
  526:     if ($tmptext = &Apache::lonselstudent::render_student_list($expired_members,
  527:                                                                "compemail",
  528:                                                                "expired",
  529:                                                                \%defaultUsers,
  530:                                                                1, "selectedusers",0)
  531:        ) {
  532:        $result .= '<h2>'.&mt('Course members with expired access').'</h2>';
  533:        $result .= $tmptext;
  534:     }
  535:     if ($tmptext = &Apache::lonselstudent::render_student_list($future_members,
  536:                                                                "compemail",
  537:                                                                "future",
  538:                                                                \%defaultUsers,
  539:                                                                1, "selectedusers", 0)
  540:        ) {
  541:        $result .= '<h2>'.&mt('Course members with future access').'</h2>';
  542:        $result .= $tmptext;
  543:     }
  544:     return $result;
  545: }
  546: 
  547: sub disgroup {
  548:     my ($cdom,$cnum,$group,$viewgrps,$editgrps) = @_;
  549:     my $result;
  550:     #  Needs to be in a course
  551:     if (!($env{'request.course.fn'})) {
  552:         $result = &mt('Error: you must have a course role selected to be able to send a broadcast message to a group in the course.');
  553:         return $result;
  554:     }
  555:     if ($cdom eq '' || $cnum eq '') {
  556:         $result = &mt('Error: could not determine domain or number of course');
  557:         return $result;
  558:     }
  559:     my ($memberinfo,$numitems) =
  560:                  &Apache::longroup::group_memberlist($cdom,$cnum,$group,{},[]);
  561:     my @statustypes = ('active');
  562:     if ($viewgrps || $editgrps) {
  563:         push(@statustypes,('future','previous'));
  564:     }
  565:     if (keys(%{$memberinfo}) == 0) {
  566:         $result = &mt('As this group has no members, there are no '.
  567:                       'recipients to select.');
  568:         return $result;
  569:     } else {
  570:         $result = &mt('Select message recipients from the group members listed below.').'<br />';  
  571:         my %Sortby = (
  572:                          active   => {},
  573:                          previous => {},
  574:                          future   => {},
  575:                      );
  576:         my %lt = &Apache::lonlocal::texthash(
  577:                                      'name'     => 'Name',
  578:                                      'usnm'     => 'Username',
  579:                                      'doma'     => 'Domain',
  580:                                      'active'   => 'Active Members',
  581:                                      'previous' => 'Former Members',
  582:                                      'future'   => 'Future Members',
  583:                                     );
  584:         foreach my $user (sort(keys(%{$memberinfo}))) {
  585:             my $status = $$memberinfo{$user}{status};
  586:             if ($env{'form.'.$status.'.sortby'} eq 'fullname') {
  587:                 push(@{$Sortby{$status}{$$memberinfo{$user}{fullname}}},$user);
  588:             } elsif ($env{'form.'.$status.'.sortby'} eq 'username') {
  589:                 push(@{$Sortby{$status}{$$memberinfo{$user}{uname}}},$user);
  590:             } elsif ($env{'form.'.$status.'.sortby'} eq 'domain') {
  591:                 push(@{$Sortby{$status}{$$memberinfo{$user}{udom}}},$user);
  592:             } else {
  593:                 push(@{$Sortby{$status}{$$memberinfo{$user}{fullname}}},$user);
  594:             }
  595:         }
  596:         $result .= &group_check_uncheck();
  597:         $result .= '<table border="0" cellspacing="8" cellpadding="2">'.
  598:                    '<tr>';
  599:         foreach my $status (@statustypes)  {
  600:             if (ref($numitems) eq 'HASH') {
  601:                 if ((defined($$numitems{$status})) && ($$numitems{$status})) {
  602:                     $result.='<td valign="top">'.
  603:                              '<fieldset><legend><b>'.$lt{$status}.
  604:                              '</b></legend><nobr>'.
  605:                              '<input type="button" value="'.&mt('Check All').'" '.
  606:                              'onclick="javascript:toggleAll('."'".$status."','check'".')" />'.
  607:                              '&nbsp;&nbsp;'.
  608:                              '<input type="button" value="'.&mt('Uncheck All').'" '.
  609:                              'onclick="javascript:toggleAll('."'".$status."','uncheck'".')" />'.
  610:                              '</nobr></fieldset><br />'.
  611:                              &Apache::loncommon::start_data_table().
  612:                              &Apache::loncommon::start_data_table_header_row();
  613:                     $result .= "<th>$lt{'name'}</a></th>".
  614:                                "<th>$lt{'usnm'}</a></th>".
  615:                                "<th>$lt{'doma'}</a></th>".
  616:                     &Apache::loncommon::end_data_table_header_row();
  617:                     foreach my $key (sort(keys(%{$Sortby{$status}}))) {
  618:                         foreach my $user (@{$Sortby{$status}{$key}}) {
  619:                             $result .=
  620:                                 &Apache::loncommon::start_data_table_row().
  621:                                 '<td><input type="checkbox" '.
  622:                                 'name="selectedusers_forminput" value="'.
  623:                                 $user.':'.$status.'" />'.
  624:                                 $$memberinfo{$user}{'fullname'}.'</td>'.
  625:                                 '<td>'.$$memberinfo{$user}{'uname'}.'</td>'.
  626:                                 '<td>'.$$memberinfo{$user}{'udom'}.'</td>'.
  627:                                 &Apache::loncommon::end_data_table_row();
  628:                         }
  629:                     }
  630:                     $result .= &Apache::loncommon::end_data_table();
  631:                 }
  632:             }
  633:             $result .= '</td><td>&nbsp;&nbsp;</td>';
  634:         }
  635:         $result .= '</tr></table>';
  636:     }
  637:     return $result;
  638: }
  639: 
  640: sub group_check_uncheck {
  641:     my $output = qq|
  642: <script type="text/javascript">
  643: function toggleAll(caller,action) {
  644:     var pattern = new RegExp(":"+caller+"\$");
  645:     if (typeof(document.compemail.selectedusers_forminput.length)=="undefined") {
  646:         if (document.compemail.selectedusers_forminput.value.match(pattern)) {
  647:             if (action == 'check') {
  648:                 document.groupmail.selectedusers_forminput.checked = true;
  649:             } else {
  650:                 document.groupmail.selectedusers_forminput.checked = false;
  651:             }
  652:         }
  653:     } else {
  654:         for (var i=0; i<document.compemail.selectedusers_forminput.length; i++) {
  655:             if (document.compemail.selectedusers_forminput[i].value.match(pattern)) {
  656:                 if (action == 'check') {
  657:                     document.compemail.selectedusers_forminput[i].checked = true;
  658:                 } else {
  659:                     document.compemail.selectedusers_forminput[i].checked = false;
  660:                 }
  661:             }
  662:         }
  663:     }
  664: }
  665: </script>
  666:     |;
  667: }
  668: 
  669: sub groupmail_header {
  670:     my ($action,$group,$cdom,$cnum) = @_;
  671:     my ($description,$refarg);
  672:     if (!$cdom || !$cnum) {
  673:         $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  674:         $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  675:     }
  676:     if (exists($env{'form.ref'})) {
  677:         $refarg = 'ref='.$env{'form.ref'};
  678:     }
  679:     if (!$group) {
  680:         $group = $env{'form.group'};
  681:     }
  682:     if ($group eq '') {
  683:         return  '';
  684:     } else {
  685:         my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum,$group);
  686:         if (defined($curr_groups{$group})) {
  687:             my %groupinfo =
  688:                     &Apache::longroup::get_group_settings($curr_groups{$group});
  689:             $description = &unescape($groupinfo{'description'});
  690:         }
  691:     }
  692:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  693:     if ($refarg) {
  694:         &Apache::lonhtmlcommon::add_breadcrumb
  695:             ({href=>"/adm/coursegroups",
  696:               text=>"Groups",
  697:               title=>"View course groups"});
  698:     }
  699:     &Apache::lonhtmlcommon::add_breadcrumb
  700:         ({href=>"/adm/$cdom/$cnum/$group/smppg?$refarg",
  701:           text=>"Group: $description",
  702:           title=>"Go to group's home page"},
  703:          {href=>"/adm/email?compose=group&amp;group=".
  704:                 "$env{'form.group'}&amp;$refarg",
  705:           text=>"Send a Message in a Group",
  706:           title=>"Compose Group Email Message"},);
  707:     if ($action eq 'sending') {
  708:             &Apache::lonhtmlcommon::add_breadcrumb
  709:                          ({text=>"Messages being sent.",
  710:                            title=>"Messages sent"},);
  711:     }
  712:     my $groupheader = &Apache::loncommon::start_page('Group Email');
  713:     $groupheader .= &Apache::lonhtmlcommon::breadcrumbs
  714:                 ('Group - '.$env{'form.group'}.' Email');
  715:     return $groupheader;
  716: }
  717: 
  718: sub groupmail_sent {
  719:     my ($group,$cdom,$cnum) = @_;
  720:     my $refarg;
  721:     if (exists($env{'form.ref'})) {
  722:         $refarg = 'ref='.$env{'form.ref'};
  723:     }
  724:     my $output .= '<br /><br /><a href="/adm/email?compose=group&amp;group='.
  725:                   $group.'&amp;'.$refarg.'">'.
  726:                   &mt('Send another group email').'</a>'.'&nbsp;&nbsp;&nbsp;'.
  727:                   '<a href="/adm/'.$cdom.'/'.$cnum.'/'.$group.'/smppg?'.
  728:                   $refarg.'">'. &mt('Return to group page').'</a>';
  729:     return $output;
  730: }
  731: 
  732: # ==================================================== Display Critical Message
  733: 
  734: sub discrit {
  735:     my $r=shift;
  736:     my $header = '<h1>'.&mt('Critical Messages').'</h1>'
  737:                 .'<div class="LC_warning">'
  738:                 .&mt('Access to other pages will be prevented until you have moved all critical messages to your inbox.')
  739:                 .'</div><br />'
  740:                 .'<form action="/adm/email" method="POST">'
  741:                 .'<input type="hidden" name="confirm" value="true" />';
  742:     my %what=&Apache::lonnet::dump('critical');
  743:     my $result = '';
  744:     foreach my $key (sort(keys(%what))) {
  745:         my %content=&Apache::lonmsg::unpackagemsg($what{$key});
  746:         next if ($content{'senderdomain'} eq '');
  747:         $result .= &Apache::lonhtmlcommon::start_pick_box()
  748:                   .&Apache::lonhtmlcommon::row_title(&mt('From'),undef,'LC_oddrow_value')
  749:                   .'<b>'.&Apache::loncommon::aboutmewrapper(
  750:                    &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b>'
  751:                   .' ('.$content{'sendername'}.':'.$content{'senderdomain'}.')'
  752:                   .&Apache::lonhtmlcommon::row_closure(1)
  753:                   .&Apache::lonhtmlcommon::row_title(&mt('Date'),undef,'LC_evenrow_value')
  754:                   .$content{'time'}
  755:                   .&Apache::lonhtmlcommon::row_closure(1)
  756:                   .&Apache::lonhtmlcommon::row_title(&mt('Subject'),undef,'LC_oddrow_value')
  757:                   .$content{'subject'}
  758:                   .&Apache::lonhtmlcommon::row_closure(1)
  759:                   .&Apache::lonhtmlcommon::row_title(&mt('Message'),undef,'LC_evenrow_value')
  760:                   .'<pre>'.&Apache::lontexconvert::msgtexconverted($content{'message'}).'</pre>'
  761:                   .&Apache::lonhtmlcommon::row_closure()
  762:                   .&Apache::lonhtmlcommon::row_title('',undef,'LC_oddrow_value')
  763:                   .'<div class="LC_warning">';
  764:         my ($rec_button,$reprec_button);
  765:         $rec_button = &mt('Move to Inbox');
  766:         if (!$content{'noreplies'}) {
  767:             $reprec_button = &mt('Move to Inbox/Compose reply');
  768:         }
  769:         if ($content{'sendback'}) {
  770:             $rec_button = &mt('Confirm Receipt');
  771:             if (!$content{'noreplies'}) {
  772:                 $reprec_button = &mt('Confirm Receipt and Reply');
  773:             }
  774:             $result .= &mt('You have to confirm that you have received this message before you can view other pages. After confirmation, this message will be moved to your regular inbox');
  775:         } else {
  776:             $result .= &mt('Access to other pages will be prevented until you have moved the message to your inbox.'); 
  777:         }
  778:         $result .= '</div>'
  779:                   .&Apache::lonhtmlcommon::row_closure(1)
  780:                   .&Apache::lonhtmlcommon::row_title('',undef,'LC_evenrow_value')
  781:                   .'<input type="submit" name="rec_'.$key.'" value="'.$rec_button.'" />';
  782:         if (!$content{'noreplies'}) {
  783:             $result .= '<input type="submit" name="reprec_'.$key.'" '
  784:                       .'value="'.$reprec_button.'" />'
  785:         }
  786:         $result .= &Apache::lonhtmlcommon::row_closure(1)
  787:                   .&Apache::lonhtmlcommon::end_pick_box()
  788:                   .'<br />';
  789:     }
  790:     # Check to see if there were any messages.
  791:     if ($result eq '') {
  792:         $result = "<h2>".&mt('You have no critical messages.')."</h2>".
  793: 	    '<a href="/adm/roles">'.&mt('Select a course').'</a><br />'.
  794:             '<a href="/adm/email">'.&mt('Communicate').'</a>';
  795:     } else {
  796:         $r->print($header);
  797:     }
  798:     $r->print($result);
  799:     $r->print('<input type="hidden" name="displayedcrit" value="true" /></form>');
  800: }
  801: 
  802: sub sortedmessages {
  803:     my ($blocked,$startblock,$endblock,$numblocked,$folder,$msgstatus) = @_;
  804:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
  805:     my @messages = &Apache::lonnet::getkeys('nohist_email'.$suffix);
  806:     #unpack the varibles and repack into temp for sorting
  807:     my @temp;
  808:     my %descriptions;
  809:     my %status_cache = 
  810: 	&Apache::lonnet::get('email_status'.&Apache::lonmsg::foldersuffix($folder),\@messages);
  811: 
  812:     my $get_received;
  813:     if ($folder eq 'sent' 
  814: 	&& ($env{'form.sortedby'} =~ m/^(rev)?(user|domain)$/)) {
  815: 	$get_received = 1;
  816:     }
  817: 
  818:     foreach my $msgid (@messages) {
  819: 	my $esc_msgid=&escape($msgid);
  820: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,$processid,$symb,$error) =
  821: 	    &Apache::lonmsg::unpackmsgid($esc_msgid,$folder,undef,
  822: 					 \%status_cache);
  823:         next if ($msgstatus ne '' && $msgstatus ne $status);
  824:         my $description = &get_course_desc($fromcid,\%descriptions);
  825: 	my @temp1 = ($sendtime,$shortsubj,$fromname,$fromdomain,$status,
  826: 		     $esc_msgid,$description);
  827: 	if ($get_received) {
  828: 	    my %message = &Apache::lonnet::get('nohist_email'.$suffix,
  829: 					       [$msgid]);
  830: 	    my %content = &Apache::lonmsg::unpackagemsg($message{$msgid});
  831: 	    push(@temp1,$content{'recuser'},$content{'recdomain'});
  832: 	}
  833:         # Check whether message was sent during blocking period.
  834:         if ($sendtime >= $startblock && ($sendtime <= $endblock && $endblock > 0) ) {
  835:             $$blocked{$msgid} = 'ON';
  836:             $$numblocked ++;
  837:         } else { 
  838:             push @temp ,\@temp1;
  839:         }
  840:     }
  841:     #default sort
  842:     @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  843:     if ($env{'form.sortedby'} eq "date"){
  844:         @temp = sort  {$a->[0] <=> $b->[0]} @temp;    
  845:     }
  846:     if ($env{'form.sortedby'} eq "revdate"){
  847:     	@temp = sort  {$b->[0] <=> $a->[0]} @temp; 
  848:     }
  849:     if ($env{'form.sortedby'} eq "user"){
  850: 	if ($get_received) {
  851: 	    @temp = sort  {lc($a->[7][0]) cmp lc($b->[7][0])} @temp;
  852: 	} else {
  853: 	    @temp = sort  {lc($a->[2])    cmp lc($b->[2])}    @temp;
  854: 	}
  855:     }
  856:     if ($env{'form.sortedby'} eq "revuser"){
  857: 	if ($get_received) {
  858: 	    @temp = sort  {lc($b->[7][0]) cmp lc($a->[7][0])} @temp;
  859: 	} else {
  860: 	    @temp = sort  {lc($b->[2])    cmp lc($a->[2])}    @temp;
  861: 	}
  862:     }
  863:     if ($env{'form.sortedby'} eq "domain"){
  864: 	if ($get_received) {
  865: 	    @temp = sort  {$a->[8][0] cmp $b->[8][0]} @temp;
  866: 	} else {
  867: 	    @temp = sort  {$a->[3]    cmp $b->[3]}    @temp;
  868: 	}
  869:     }
  870:     if ($env{'form.sortedby'} eq "revdomain"){
  871: 	if ($get_received) {
  872: 	    @temp = sort  {$b->[8][0] cmp $a->[8][0]} @temp;
  873: 	} else {
  874: 	    @temp = sort  {$b->[3]    cmp $a->[3]}    @temp;
  875: 	}
  876:     }
  877:     if ($env{'form.sortedby'} eq "subject"){
  878:         @temp = sort  {lc($a->[1]) cmp lc($b->[1])} @temp;
  879:     }
  880:     if ($env{'form.sortedby'} eq "revsubject"){
  881:         @temp = sort  {lc($b->[1]) cmp lc($a->[1])} @temp;
  882:     }
  883:     if ($env{'form.sortedby'} eq "course"){
  884:         @temp = sort  {lc($a->[6]) cmp lc($b->[6])} @temp;
  885:     }
  886:     if ($env{'form.sortedby'} eq "revcourse"){
  887:         @temp = sort  {lc($b->[6]) cmp lc($a->[6])} @temp;
  888:     }
  889:     if ($env{'form.sortedby'} eq "status"){
  890:         @temp = sort  {$a->[4] cmp $b->[4]} @temp;
  891:     }
  892:     if ($env{'form.sortedby'} eq "revstatus"){
  893:         @temp = sort  {$b->[4] cmp $a->[4]} @temp;
  894:     }
  895:     return @temp;
  896: }
  897: 
  898: sub get_course_desc {
  899:     my ($fromcid,$descriptions) = @_;
  900:     my $description;
  901:     if (!$fromcid) {
  902:         return $description;
  903:     } else {
  904:         if (defined($$descriptions{$fromcid})) {
  905:             $description = $$descriptions{$fromcid};
  906:         } else {
  907:             if (defined($env{'course.'.$fromcid.'.description'})) {
  908:                 $description = $env{'course.'.$fromcid.'.description'};
  909:             } else {
  910:                 my %courseinfo=&Apache::lonnet::coursedescription($fromcid);
  911:                 $description = $courseinfo{'description'};
  912:             }
  913:             $$descriptions{$fromcid} = $description;
  914:         }
  915:         return $description;
  916:     }
  917: }
  918: 
  919: # ======================================================== Display all messages
  920: 
  921: sub disall {
  922:     my ($r,$folder,$msgstatus)=@_;
  923:     my %saveable = ('msgstatus' => 'scalar',
  924: 		    'sortedby'  => 'scalar',
  925: 		    'interdis'  => 'scalar',
  926: 		    );
  927:     &Apache::loncommon::store_settings('user','mail',\%saveable);
  928:     &Apache::loncommon::restore_settings('user','mail',\%saveable);
  929:     $folder    ||= $env{'form.folder'};
  930:     $msgstatus ||= $env{'form.msgstatus'};
  931:     $env{'form.interdis'} ||= 20;
  932: 
  933:     $r->print(&folderlist($folder,$msgstatus));
  934:     if ($folder eq 'critical') {
  935: 	&discrit($r);
  936:     } else {
  937: 	&disfolder($r,$folder,$msgstatus);
  938:     }
  939: }
  940: 
  941: # ============================================================ Display a folder
  942: 
  943: sub disfolder {
  944:     my ($r,$folder,$msgstatus)=@_;
  945:     my %statushash = &get_msgstatus_types();
  946:     my %blocked = ();
  947:     my %setters = ();
  948:     my $numblocked = 0;
  949:     my ($startblock,$endblock) = &Apache::loncommon::blockcheck(\%setters,'com');
  950:     my %lt = &Apache::lonlocal::texthash(
  951:                       sede => 'Select a destination folder to which the messages will be moved.',
  952:                       nome => 'No messages have been selected to apply ths action to.',
  953:                       chec => 'Check the checkbox for at least one message.',  
  954:     );
  955:     my $jscript = &Apache::loncommon::check_uncheck_jscript();
  956:     $r->print(<<ENDDISHEADER);
  957: <script type="text/javascript">
  958:     $jscript
  959: 
  960:     function validate_checkedaction() {
  961:         document.disall.markedaction.value = document.disall.checkedaction.options[document.disall.checkedaction.selectedIndex].value;
  962:         if (document.disall.checkedaction.options[document.disall.checkedaction.selectedIndex].value == 'markedmove') {
  963:             if (document.disall.movetofolder.options[document.disall.movetofolder.selectedIndex].value == "") {
  964:                 alert("$lt{'sede'}");
  965:                 return;
  966:             } 
  967:         }
  968:         var checktotal = 0;
  969:         if (document.forms.disall.delmark.length > 0) {
  970:             for (var i=0; i<document.forms.disall.delmark.length; i++) {
  971:                 if (document.forms.disall.delmark[i].checked) {
  972:                     checktotal ++;
  973:                 }
  974:             }
  975:         } else {
  976:             if (document.forms.disall.delmark.checked) {
  977:                 checktotal ++;
  978:             }
  979:         }   
  980:         if (checktotal == 0) {
  981:             alert("$lt{'nome'}\\n$lt{'chec'}");
  982:             return;
  983:         }
  984:         document.disall.submit();
  985:     }
  986: 
  987: </script>
  988: ENDDISHEADER
  989: 
  990:     my $fsqs='&folder='.$folder;
  991:     my @temp=&sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder,$msgstatus);
  992:     my $totalnumber=$#temp+1;
  993:     if ($totalnumber < 1) {
  994:         if ($msgstatus eq '') {
  995: 	    $r->print('<h2>'.&mt('Empty Folder').'</h2>');
  996:         } elsif ($msgstatus eq 'replied') {
  997:             $r->print('<h2>'.&mt('You have not replied to any messages in this folder.').'</h2>');
  998:         } else { 
  999:             $r->print('<h2>'.&mt('There are no '.lc($statushash{$msgstatus}).' messages in this folder.').'</h2>');
 1000:         }
 1001:         if ($numblocked > 0) {
 1002:             $r->print(&blocked_in_folder($numblocked,$startblock,$endblock,
 1003:                                          \%setters));
 1004:         }
 1005: 	return;
 1006:     }
 1007:     my $interdis = $env{'form.interdis'};
 1008:     my $number=int($totalnumber/$interdis);
 1009:     if ($totalnumber%$interdis == 0) {
 1010: 	$number--; 
 1011:     }
 1012: 
 1013:     if (($startdis<0) || ($startdis>$number)) { $startdis=$number; }
 1014:     my $firstdis=$interdis*$startdis;
 1015:     if ($firstdis>$#temp) { $firstdis=$#temp-$interdis+1; }
 1016:     my $lastdis=$firstdis+$interdis-1;
 1017:     if ($lastdis>$#temp) { $lastdis=$#temp; }
 1018:     $r->print(&scrollbuttons($startdis,$number,$firstdis,$lastdis,$totalnumber,$msgstatus));
 1019:     $r->print('<form method="post" name="disall" action="/adm/email">'.
 1020: 	      '<table class="LC_mail_list"><tr><th colspan="1">&nbsp;</th><th>');
 1021:     if ($env{'form.sortedby'} eq "revdate") {
 1022: 	$r->print('<a href = "?sortedby=date'.$fsqs.'">'.&mt('Date').'</a></th>');
 1023:     } else {
 1024: 	$r->print('<a href = "?sortedby=revdate'.$fsqs.'">'.&mt('Date').'</a></th>');
 1025:     }
 1026:     $r->print('<th>');
 1027:     if ($env{'form.sortedby'} eq "revuser") {
 1028: 	$r->print('<a href = "?sortedby=user'.$fsqs.'">'.&mt('Username').'</a>');
 1029:     } else {
 1030: 	$r->print('<a href = "?sortedby=revuser'.$fsqs.'">'.&mt('Username').'</a>');
 1031:     }
 1032:     $r->print('</th><th>');
 1033:     if ($env{'form.sortedby'} eq "revdomain") {
 1034: 	$r->print('<a href = "?sortedby=domain'.$fsqs.'">'.&mt('Domain').'</a>');
 1035:     } else {
 1036: 	$r->print('<a href = "?sortedby=revdomain'.$fsqs.'">'.&mt('Domain').'</a>');
 1037:     }
 1038:     $r->print('</th><th>');
 1039:     if ($env{'form.sortedby'} eq "revsubject") {
 1040: 	$r->print('<a href = "?sortedby=subject'.$fsqs.'">'.&mt('Subject').'</a>');
 1041:     } else {
 1042:     	$r->print('<a href = "?sortedby=revsubject'.$fsqs.'">'.&mt('Subject').'</a>');
 1043:     }
 1044:     $r->print('</th><th>');
 1045:     if ($env{'form.sortedby'} eq "revcourse") {
 1046:         $r->print('<a href = "?sortedby=course'.$fsqs.'">'.&mt('Course').'</a>');
 1047:     } else {
 1048:         $r->print('<a href = "?sortedby=revcourse'.$fsqs.'">'.&mt('Course').'</a>');
 1049:     }
 1050:     $r->print('</th><th>');
 1051:     if ($env{'form.sortedby'} eq "revstatus") {
 1052: 	$r->print('<a href = "?sortedby=status'.$fsqs.'">'.&mt('Status').'</a></th>');
 1053:     } else {
 1054:      	$r->print('<a href = "?sortedby=revstatus'.$fsqs.'">'.&mt('Status').'</a></th>');
 1055:     }
 1056:     $r->print("</tr>\n");
 1057: 
 1058:     my $suffix = &Apache::lonmsg::foldersuffix($folder);
 1059:     for (my $n=$firstdis;$n<=$lastdis;$n++) {
 1060: 	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$origID,
 1061: 	    $description,$recv_name,$recv_domain)= 
 1062: 		@{$temp[$n]};
 1063: 	if (($status ne 'deleted') && defined($sendtime) && $sendtime!~/error/) {
 1064: 	    if ($status eq 'new') {
 1065: 		$r->print('<tr class="LC_mail_new">');
 1066: 	    } elsif ($status eq 'read') {
 1067: 		$r->print('<tr class="LC_mail_read">');
 1068: 	    } elsif ($status eq 'replied') {
 1069: 		$r->print('<tr class="LC_mail_replied">'); 
 1070: 	    } else {
 1071: 		$r->print('<tr class="LC_mail_other">');
 1072: 	    }
 1073: 	    my ($dis_name,$dis_domain) = ($fromname,$fromdomain);
 1074: 	    if ($folder eq 'sent') {
 1075:                 if (defined($recv_name) && defined($recv_domain)) {
 1076: 		    if (ref($recv_name) eq 'ARRAY' && 
 1077:                         ref($recv_domain) eq 'ARRAY') {
 1078: 		        $dis_name   = join('<br />',@{$recv_name});
 1079: 		        $dis_domain = join('<br />',@{$recv_domain});
 1080:                     }
 1081: 		} else {
 1082: 		    my $msg_id  = &unescape($origID);
 1083: 		    my %message = &Apache::lonnet::get('nohist_email'.$suffix,
 1084: 						       [$msg_id]);
 1085: 		    my %content = &Apache::lonmsg::unpackagemsg($message{$msg_id});
 1086:                     if (ref($content{'recuser'}) eq 'ARRAY') {
 1087: 		        $dis_name   = join('<br />',@{$content{'recuser'}});
 1088:                     }
 1089:                     if (ref($content{'recdomain'}) eq 'ARRAY') {
 1090: 		        $dis_domain = join('<br />',@{$content{'recdomain'}});
 1091:                     }
 1092: 		}
 1093: 	    }
 1094:             my $localsenttime = &Apache::lonlocal::locallocaltime($sendtime);
 1095:             my $count = $n +1;
 1096: 	    $r->print('<td align="right"><nobr>'.(($status eq 'new')?'<b>':'').
 1097:                       $count.'.'.(($status eq 'new')?'</b>':'').'&nbsp;'.
 1098:                       '<input type="checkbox" name="delmark"'. 
 1099:                       ' value="'.$origID.'" /></nobr></td>');
 1100:             foreach my $item ($localsenttime,$dis_name,$dis_domain,$shortsubj) {
 1101:                 $r->print('<td>'.(($status eq 'new')?'<b>':'').
 1102:                           '<a href="/adm/email?display='.$origID.$sqs.'">'.
 1103:                           $item.(($status eq 'new')?'</b>':'').'</td>');
 1104:             }
 1105:             my $showstatus;
 1106:             my %statushash = &get_msgstatus_types();
 1107:             if ($status eq '') {
 1108:                 $showstatus = '';
 1109:             } else {
 1110:                 $showstatus = $statushash{$status};
 1111:             }
 1112: 	    $r->print('<td>'.(($status eq 'new')?'<b>':'').$description.
 1113:                       (($status eq 'new')?'</b>':'').'</td><td>'.
 1114:                       (($status eq 'new')?'<b>':'').$showstatus.
 1115:                       (($status eq 'new')?'</b>':'').'</td></tr>'."\n");
 1116: 	} elsif ($status eq 'deleted') {
 1117: # purge
 1118: 	    my ($result,$msg) = 
 1119: 		&movemsg(&unescape($origID),$folder,'trash');
 1120: 	    
 1121: 	}
 1122:     }   
 1123:     $r->print("</table>\n");
 1124:     $r->print('<table border="0" cellspacing="2" cellpadding="2">
 1125:  <tr>
 1126:   <td>'.
 1127:   '<input type="button" onclick="javascript:checkAll(document.disall.delmark)" value="'.&mt('Check All').'" /><br />'."\n".
 1128:   '<input type="button" onclick="javascript:uncheckAll(document.disall.delmark)" value="'.&mt('Uncheck All').'" />'."\n".
 1129:   '<input type="hidden" name="sortedby" value="'.$env{'form.sortedby'}.'" /></td><td>&nbsp;</td>'."\n".
 1130:   '<td align="center"><b>'.&mt('Action').'</b><br />'."\n".
 1131:   '  <select name="checkedaction">'."\n");
 1132: 
 1133:     if ($folder ne 'trash') {
 1134:         $r->print('    <option value="markeddel">'.&mt('Delete').'</option>'."\n");
 1135:     }
 1136:     if ($msgstatus ne 'read') {
 1137:         $r->print('    <option value="markedread">'.&mt('Mark Read').'</option>."\n"');
 1138:     }
 1139:     if ($msgstatus ne 'unread') {
 1140:         $r->print('    <option value="markedunread">'.&mt('Mark Unread').'</option>'."\n");
 1141:     }
 1142:     $r->print('   <option value="markedforward">'.&mt('Forward').'</option>'."\n");
 1143: 
 1144:     my %gotfolders = &Apache::lonmsg::get_user_folders();
 1145:     if (keys(%gotfolders) > 0) {
 1146:         $r->print('   <option value="markedmove">'.&mt('Move to Folder ->').
 1147:                   '</option>');
 1148:     }
 1149:     $r->print("\n".'</select></td>'."\n");
 1150: 
 1151:     if (keys(%gotfolders) > 0) {
 1152:         $r->print('<td align="center"><b>'.&mt('Destination folder').'<b><br />');
 1153: 	my %userfolders;
 1154:         foreach my $key (keys(%gotfolders)) {
 1155:             $userfolders{$key} = $key;
 1156:         }
 1157:         $userfolders{''} = "";
 1158:         $r->print(&Apache::loncommon::select_form('','movetofolder',%userfolders).
 1159:                   '</td>');
 1160:     }
 1161:     $r->print('<td>&nbsp;</td><td>&nbsp;&nbsp;'.
 1162:               '<input type="button" name="go" value="'.&mt('Go').
 1163:               '" onclick="javascript:validate_checkedaction()"/></td>'."\n".
 1164:               '</tr></table>');
 1165:     my $postedstartdis=$startdis+1;
 1166:     $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'}.'" /><input type="hidden" name="msgstatus" value="'.$msgstatus.'" ><input type="hidden" name="markedaction" value="" /></form>');
 1167:     if ($numblocked > 0) {
 1168:         $r->print(&blocked_in_folder($numblocked,$startblock,$endblock,
 1169:                                      \%setters));
 1170:     }
 1171: }
 1172: 
 1173: sub blocked_in_folder {
 1174:     my ($numblocked,$startblock,$endblock,$setters) = @_;
 1175:     my $beginblock = &Apache::lonlocal::locallocaltime($startblock);
 1176:     my $finishblock = &Apache::lonlocal::locallocaltime($endblock);
 1177:     my $output = '<br /><br />'.
 1178:                   &mt('[quant,_1,message is, messages are] not viewable because display of LON-CAPA messages sent to you by other students between [_2] and [_3] is currently being blocked because of online exams.',$numblocked,$beginblock,$finishblock);
 1179:     $output .= &Apache::loncommon::build_block_table($startblock,$endblock,
 1180:                                                      $setters);
 1181:     return $output;
 1182: }
 1183: 
 1184: # ============================================================== Compose output
 1185: 
 1186: sub compout {
 1187:     my ($r,$forwarding,$replying,$broadcast,$replycrit,$folder,$dismode,
 1188:         $multiforward)=@_;
 1189:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
 1190:     my ($cdom,$cnum,$group,$refarg);
 1191:     if (exists($env{'form.group'})) {
 1192:         $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1193:         $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 1194:         $group = $env{'form.group'};
 1195:         my $action = 'composing';
 1196:         $r->print(&groupmail_header($action,$group,$cdom,$cnum));
 1197:     } elsif ($broadcast eq 'individual') {
 1198: 	&printheader($r,'/adm/email?compose=individual',
 1199: 	     'Send a Message');
 1200:     } elsif ($broadcast) {
 1201: 	&printheader($r,'/adm/email?compose=group',
 1202: 	     'Broadcast Message');
 1203:     } elsif ($forwarding) {
 1204: 	&Apache::lonhtmlcommon::add_breadcrumb
 1205:         ({href=>"/adm/email?display=".&escape($forwarding),
 1206:           text=>"Display Message"});
 1207: 	&printheader($r,'/adm/email?forward='.&escape($forwarding),
 1208: 	     'Forwarding a Message');
 1209:     } elsif ($replying) {
 1210: 	&Apache::lonhtmlcommon::add_breadcrumb
 1211:         ({href=>"/adm/email?display=".&escape($replying),
 1212:           text=>"Display Message"});
 1213: 	&printheader($r,'/adm/email?replyto='.&escape($replying),
 1214: 	     'Replying to a Message');
 1215:     } elsif ($replycrit) {
 1216: 	$r->print('<h3>'.&mt('Replying to a Critical Message').'</h3>');
 1217: 	$replying=$replycrit;
 1218:     } elsif ($multiforward) {
 1219:         &Apache::lonhtmlcommon::add_breadcrumb
 1220:         ({href=>"/adm/email?folder=".&escape($folder),
 1221:           text=>"Display All Messages"});
 1222:         &printheader($r,'/adm/email?compose=multiforward',
 1223:              'Forwarding Multiple Messages');
 1224:         if ($multiforward > 1) {
 1225:             $r->print(&mt('Each of the <b>[quant,_1,message]</b> you checked'
 1226:                          .' will be forwarded to the recipient(s) you select below.',$multiforward)
 1227:                     .'<br />');
 1228:         } else {
 1229:             $r->print(&mt('The message you checked will be forwarded to the recipient(s) you select below.').'<br />');
 1230:         }
 1231: 
 1232:     } else {
 1233: 	&printheader($r,'/adm/email?compose=upload',
 1234: 	     'Distribute from Uploaded File');
 1235:     }
 1236: 
 1237:     my $dispcrit='';
 1238:     my $dissub='';
 1239:     my $dismsg='';
 1240:     my $disbase='';
 1241:     my $attachrow;
 1242:     my $func1='Send'; # do not translate here!
 1243:     my %func2=( # do not translate here!
 1244:                'ma'  => 'Message',
 1245:                'msg' => 'Messages',
 1246:               );
 1247:     my %lt=&Apache::lonlocal::texthash('us'  => 'Username',
 1248: 				       'do'  => 'Domain',
 1249: 				       'ad'  => 'Additional Recipients',
 1250:                                        'rt'  => 'Reply to',
 1251:                                        'ar'  => 'Allow replies',
 1252: 				       'sb'  => 'Subject',
 1253: 				       'ca'  => 'Cancel',
 1254:                                        'gen' => 'Generate messages from a file',
 1255:                                        'gmt' => 'General message text',
 1256:                                        'tff' => 'The file format for the uploaded portion of the message is',
 1257:                                        'uas' => 'Upload and Send',
 1258:                                        'atta' => 'Attachment',
 1259:                                       );
 1260:     my %attachmax = (
 1261:                      text => &mt('(128 KB max size)'),
 1262:                      num  => 131072,
 1263:                     );
 1264:     if (!$forwarding && !$multiforward) {
 1265:         $attachrow = '<br />'.$lt{'atta'}.' '.$attachmax{'text'}.': <input type="file" name="attachment" />';
 1266:     }
 1267:     if (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1268: 	|| &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1269: 				    '/'.$env{'request.course.sec'})) {
 1270: 	 my $crithelp = Apache::loncommon::help_open_topic("Course_Critical_Message");
 1271:          $dispcrit=
 1272:  '<p><label><input type="checkbox" name="critmsg" /> '.&mt('Send as critical message').'</label> ' . $crithelp . 
 1273:  '</p><p>'.
 1274:  '<label><input type="checkbox" name="sendbck" /> '.&mt('Send as critical message').'  ' .
 1275:  &mt('and return receipt') . '</label>' . $crithelp . 
 1276:  '</p><p><label><input type="checkbox" name="permanent" /> '.
 1277: &mt('Send copy to permanent email address (if known)').'</label></p>'.
 1278: '<p><label><input type="checkbox" name="rsspost" /> '.
 1279: 		  &mt('Include in course RSS newsfeed').'</label></p>';
 1280:     }
 1281:     if ($broadcast ne 'group') {
 1282:         if (&Apache::lonnet::allowed('dff',$env{'request.course.id'}) ||
 1283:             &Apache::lonnet::allowed('dff',$env{'request.course.id'}.
 1284:                                      '/'.$env{'request.course.sec'})) {
 1285: 
 1286:             $dispcrit.='<p><label>'.
 1287:                        '<input type="checkbox" name="courserecord" value="1" /> '.
 1288:                        &mt("Include in course's 'User records' for recipient(s)").
 1289:                        '</label></p>';
 1290:         }
 1291:     }
 1292: 
 1293:     my %message;
 1294:     my %content;
 1295:     my $defdom=$env{'user.domain'};
 1296:     if ($forwarding) {
 1297: 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$forwarding]);
 1298: 	%content=&Apache::lonmsg::unpackagemsg($message{$forwarding},$folder);
 1299: 	$dispcrit.='<input type="hidden" name="forwid" value="'.
 1300: 	    $forwarding.'" />';
 1301: 	$func1='Forward'; # do not translate here!
 1302: 	
 1303: 	$dissub=&mt('Forwarding').': '.$content{'subject'};
 1304: 	$dismsg=&mt('Forwarded message from').' '.
 1305: 	    $content{'sendername'}.' '.&mt('at').' '.$content{'senderdomain'};
 1306: 	if ($content{'baseurl'}) {
 1307: 	    $disbase='<input type="hidden" name="baseurl" value="'.&escape($content{'baseurl'}).'" />';
 1308: 	}
 1309:     }
 1310:     if ($replying) {
 1311: 	%message=&Apache::lonnet::get('nohist_email'.$suffix,[$replying]);
 1312: 	%content=&Apache::lonmsg::unpackagemsg($message{$replying},$folder);
 1313: 	$dispcrit.='<input type="hidden" name="replyid" value="'.
 1314: 	    $replying.'" />';
 1315: 	$func1='Send Reply to'; # do not translate here!
 1316: 	
 1317: 	$dissub=&mt('Reply').': '.$content{'subject'};       
 1318: 	$dismsg='> '.$content{'message'};
 1319: 	$dismsg=~s/\r/\n/g;
 1320: 	$dismsg=~s/\f/\n/g;
 1321: 	$dismsg=~s/\n+/\n\> /g;
 1322: 	if ($content{'baseurl'}) {
 1323: 	    $disbase='<input type="hidden" name="baseurl" value="'.&escape($content{'baseurl'}).'" />';
 1324: 	    if ($env{'user.adv'}) {
 1325: 		$disbase.='<label><input type="checkbox" name="storebasecomment" />'.&mt('Save message for re-use').
 1326: 		    '</label> <a href="/adm/email?showcommentbaseurl='.
 1327: 		    &escape($content{'baseurl'}).'" target="comments">'.
 1328: 		    &mt('Show re-usable messages').'</a><br />';
 1329: 	    }
 1330: 	}
 1331:         my $jscript = &Apache::loncommon::check_uncheck_jscript();
 1332:         $r->print(<<"ENDREPSCRIPT");
 1333: <script type="text/javascript">
 1334: $jscript
 1335: </script>
 1336: ENDREPSCRIPT
 1337:     }
 1338:     my $citation=&displayresource(%content);
 1339:     my ($can_grp_broadcast,$viewgrps,$editgrps);
 1340:     if ($env{'form.recdom'}) { $defdom=$env{'form.recdom'}; }
 1341:     if ($env{'form.text'}) { $dismsg=$env{'form.text'}; }
 1342:     if ($env{'form.subject'}) { $dissub=$env{'form.subject'}; }
 1343:     $r->print(
 1344:                 '<form action="/adm/email"  name="compemail" method="post"'.
 1345:                 ' enctype="multipart/form-data">'."\n".
 1346:                 '<input type="hidden" name="sendmail" value="on" />'."\n");
 1347:     if ($broadcast eq 'group' && $env{'form.group'} ne '') {
 1348:         $can_grp_broadcast = 
 1349:                 &Apache::lonnet::allowed('sgb',$env{'request.course.id'}.'/'.
 1350:                                          $group);
 1351:         $viewgrps = 
 1352:                &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.
 1353:                ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
 1354:         $editgrps = 
 1355:                &Apache::lonnet::allowed('mdg',$env{'request.course.id'}.
 1356:                ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
 1357:         if ($viewgrps || $editgrps || $can_grp_broadcast) {
 1358:             $r->print(&disgroup($cdom,$cnum,$group,$viewgrps,$editgrps));
 1359:         }
 1360:     }
 1361:     $r->print('<table>');
 1362:     if (($broadcast eq 'group') && ($group ne '') && 
 1363:         (!$can_grp_broadcast && !$viewgrps && !$editgrps)) {
 1364:         $r->print(&recipient_input_row($cdom,%lt));
 1365:     } 
 1366:     if (($broadcast ne 'group') && ($broadcast ne 'upload')) {
 1367: 	if ($replying) {
 1368:             if ($content{'noreplies'}) {
 1369:                 $r->print('<tr><td>'.&mt('This message was designated by the sender not to allow replies.').'</td></tr></table></form>');
 1370:                 return;
 1371:             }
 1372:             $r->print('<tr><td colspan="2">'.&mt('Replying to').' ');
 1373:             if ($content{'replytoaddr'}) {
 1374:                 my ($replytoname,$replytodom) = split(/:/,$content{'replytoaddr'});
 1375:                 if ($replytoname ne '' && $replytodom ne '') {
 1376:                     $r->print(&Apache::loncommon::plainname($replytoname,
 1377:                                  $replytodom).' ('.$replytoname.':'.
 1378:                                  $replytodom.')');
 1379:                     $r->print('<input type="hidden" name="recuname" value="'.
 1380:                           $replytoname.'" />'.
 1381:                           '<input type="hidden" name="recdomain" value="'.
 1382:                           $replytodom.'" /></td></tr>');
 1383: 
 1384:                 } else {
 1385:                     $r->print(&mt('The sender did not designate a reply to address for this message.').'</td></tr></table>');
 1386:                     return;
 1387:                 }
 1388:             } else {
 1389: 	        $r->print(&Apache::loncommon::aboutmewrapper(
 1390: 							 &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).' ('.
 1391: 		      $content{'sendername'}.':'.
 1392: 		      $content{'senderdomain'}.')');
 1393:                 $r->print('<input type="hidden" name="recuname" value="'.
 1394: 		          $content{'sendername'}.'" />'.
 1395: 		          '<input type="hidden" name="recdomain" value="'.
 1396:                           $content{'senderdomain'}.'" /></td></tr>');
 1397:             }
 1398:             if ($content{'recipid'}) {
 1399:                 my @ccs = &retrieve_cc_recips('replying',%content);
 1400:                 if (@ccs > 0) {
 1401:                     my $replyall = qq|
 1402:  <span class="LC_nobreak">
 1403:       <input type="button" value="check all"
 1404:         onclick="javascript:checkAll(document.compemail.replying_cc)" />
 1405:         &nbsp;&nbsp;
 1406:       <input type="button" value="uncheck all"
 1407:         onclick="javascript:uncheckAll(document.compemail.replying_cc)" />
 1408:  </span>
 1409: |;
 1410:                     my $cclist = join(' ',@ccs);
 1411:                     $r->print('<tr><td>'.&mt('Reply to other recipients').':<br />'.$replyall.'</td><td>'.$cclist.'</td></tr>');
 1412:                 }
 1413:             }
 1414: 	} else {
 1415:             $r->print(&recipient_input_row($defdom,%lt));
 1416:         }
 1417:     }
 1418:     my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
 1419:     my $subj_size;
 1420:     if ($multiforward) {
 1421:         $r->print(&additional_rec_row(\%lt));
 1422:         $r->print('<tr><td colspan="2">'.
 1423:                   &mt('Unless you choose otherwise:').'<ul><li>'.
 1424:         &mt("The subject in each forwarded message will be <i>'Forwarding:'</i> followed by the original subject.").'</li><li>'.
 1425:         &mt("The message itself will begin with a first line: <i>'Forwarded message from'</i> followed by the original sender's name.").'</li></ul></td></tr>');
 1426:         $func1='Forward'; # do not translate here!
 1427:         $dissub = &mt('Forwarding').': ';
 1428:         $subj_size = '10';
 1429:         my $extra = '&lt;'.&mt('original subject').'&gt;&nbsp;&nbsp;&nbsp;'.
 1430:                     '<input type="radio" name="showorigsubj" value="1" checked="checked" />'.&mt('Yes').'&nbsp;<input type="radio" name="showorigsubj" value="0" />'.&mt('No');
 1431:         $dismsg = &mt('Forwarded message from ').' ';
 1432:         my $sender = &mt("sender's name");
 1433:         $r->print(&msg_subject_row($dissub,\%lt,$subj_size,$extra));
 1434:         $r->print('<tr><td>'.&mt('Message begins with:').'</td><td><input type="text" name="msgheader" value="'.$dismsg.'" />&nbsp;'.$sender.'&nbsp;&nbsp;&nbsp;<input type="radio" name="showorigsender" value="1" checked="checked" />'.&mt('Yes').'&nbsp;<input type="radio" name="showorigsender" value="0" />'.&mt('No').'<input type="hidden" name="multiforward" value="'.$multiforward.'" /></td></tr>
 1435: </table>
 1436: <br />'.
 1437: $latexHelp.
 1438: &mt("Any new text to display before the text of the original messages:").'<br />
 1439: <textarea name="message" id="message" cols="80" rows="5" wrap="hard">
 1440: </textarea></p><br />');
 1441:         my @to_forward = &Apache::loncommon::get_env_multiple('form.delmark');
 1442:         foreach my $msg (@to_forward) {
 1443:             $r->print('<input type="hidden" name="delmark" value="'.$msg.'" />');
 1444:         }
 1445:         $r->print(&submit_button_row($folder,$dismode,&mt($func1.' '.$func2{'msg'}),
 1446:                                      \%lt));
 1447:     } elsif ($broadcast ne 'upload') {
 1448:         $subj_size = '50';
 1449:         $r->print(&additional_rec_row(\%lt));
 1450:         if (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 1451:             || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 1452:                                         '/'.$env{'request.course.sec'})) {
 1453:             $r->print(&reply_to_row(\%lt));
 1454:         }
 1455:         $r->print(&msg_subject_row($dissub,\%lt,$subj_size));
 1456:         $r->print(<<"ENDCOMP");
 1457: </table>
 1458: $latexHelp
 1459: <textarea name="message" id="message" cols="80" rows="15" wrap="hard">$dismsg
 1460: </textarea>
 1461: $attachrow
 1462: </p>
 1463: <br />
 1464: $dispcrit
 1465: $disbase
 1466: ENDCOMP
 1467:         $r->print(&submit_button_row($folder,$dismode,&mt($func1.' '.$func2{'ma'}),
 1468:                                      \%lt));
 1469:         $r->print($citation);
 1470:         if (exists($env{'form.ref'})) {
 1471:             $r->print('<input type="hidden" name="ref" value="'.
 1472:                       $env{'form.ref'}.'" />');
 1473:         }
 1474:         if (exists($env{'form.group'})) {
 1475:             $r->print('<input type="hidden" name="group" value="'.
 1476:                       $env{'form.group'}.'" />');
 1477:         }
 1478:     } else { # $broadcast is 'upload'
 1479: 	$r->print(<<ENDBLOCK);
 1480: <input type="hidden" name="sendmode" value="upload" />
 1481: <input type="hidden" name="send" value="on" />
 1482: <h3>$lt{'gen'}</h3>
 1483: <p>
 1484: Subject: <input type="text" size="50" name="subject" />
 1485: </p>
 1486: <p>$lt{'gmt'}:<br />
 1487: <textarea name="message" id="message" cols="60" rows="10" wrap="hard">$dismsg
 1488: </textarea></p>
 1489: <p>
 1490: $lt{'tff'}:
 1491: ENDBLOCK
 1492:        $r->print('
 1493: <pre>'."\n".
 1494: &mt('username1:domain1: text')."\n".
 1495: &mt('username2:domain2: text')."\n".
 1496: &mt('username3:domain1: text')."\n".
 1497: '</pre>
 1498: </p>
 1499: <p>
 1500: '.&mt('The messages will be assembled from all lines with the respective'."\n".'<tt>username:domain</tt>, and appended to the general message text.'));
 1501:         $r->print(<<ENDUPLOAD);
 1502: </p>
 1503: <p>
 1504: <input type="file" name="upfile" size="40" /></p><p>
 1505: $dispcrit
 1506: <input type="submit" value="$lt{'uas'}" /></p>
 1507: ENDUPLOAD
 1508:     }
 1509:     if ($broadcast eq 'group') {
 1510:        if ($group eq '') {
 1511:            my $studentsel = &discourse();
 1512:            $r->print($studentsel);
 1513:        }
 1514:     }
 1515:     if ($env{'form.displayedcrit'}) {
 1516: 	$r->print('<input type="hidden" name="displayedcrit" value="true" />');
 1517:     }
 1518:     $r->print('</form>'.
 1519: 	      &Apache::lonfeedback::generate_preview_button('compemail','message').
 1520: 	      &Apache::lonhtmlcommon::htmlareaselectactive('message'));
 1521: }
 1522: 
 1523: # ---------------------------------------------------- Display all face to face
 1524: 
 1525: sub recipient_input_row {
 1526:     my ($dom,%lt) = @_;
 1527:     my $domform = &Apache::loncommon::select_dom_form($dom,'recdomain');
 1528:     my $selectlink=
 1529:       &Apache::loncommon::selectstudent_link('compemail','recuname',
 1530:                                              'recdomain');
 1531:     my $output = <<"ENDREC";
 1532: <tr><td colspan="2"><span class="LC_nobreak">$lt{'us'}:&nbsp;<input type="text" size="12" name="recuname" value="$env{'form.recname'}" />&nbsp;$lt{'do'}:&nbsp;$domform&nbsp;&nbsp;$selectlink</span></td></tr>
 1533: ENDREC
 1534:     return $output;
 1535: }
 1536: 
 1537: sub reply_to_row {
 1538:     my ($lt) = @_;
 1539:     my $radioyes = &mt('Yes');
 1540:     my $radiono = &mt('No');
 1541:     my $output = <<"ENDREP";
 1542: <tr><td colspan="2"><span class="LC_nobreak">$lt->{'ar'}:<label><input type="radio" name="can_reply" value="Y" checked="checked" />$radioyes</label>&nbsp;&nbsp;<label><input type="radio" name="can_reply" value="N" />$radiono</label></span>&nbsp;&nbsp;&nbsp;&nbsp;<span class="LC_nobreak">$lt->{'rt'}:&nbsp;<input type="text" size="25" name="reply_to_addr" value="$env{'user.name'}:$env{'user.domain'}" /></span></td></tr>
 1543: ENDREP
 1544:     return $output;
 1545: }
 1546: 
 1547: sub additional_rec_row {
 1548:     my ($lt) = @_;
 1549:     my $cc = &mt('Cc:');
 1550:     my $bcc = &mt('Bcc:');
 1551:     my $exmpl = &mt('username:domain,username:domain,...'); 
 1552:     my $output = <<"ENDADD";
 1553: <tr><td>$lt->{'ad'} :<br /><tt>($exmpl)
 1554: </tt></td><td>&nbsp;<span class="LC_nobreak">$cc 
 1555: <input type="text" size="50" name="additionalrec_cc" /></span><br />
 1556: <span class="LC_nobreak">$bcc <input type="text" size="50" name="additionalrec_bcc" /></span></td></tr>
 1557: ENDADD
 1558:     return $output;
 1559: }
 1560: 
 1561: sub submit_button_row {
 1562:     my ($folder,$dismode,$sendtext,$lt) = @_;
 1563:     my $output = qq| 
 1564: <input type="hidden" name="folder" value="$folder" />
 1565: <input type="hidden" name="dismode" value="$dismode" />
 1566: <input type="submit" name="send" value="$sendtext" />
 1567: <input type="submit" name="cancel" value="$lt->{'ca'}" /><hr />
 1568: |;
 1569:     return $output;
 1570: }
 1571: 
 1572: sub msg_subject_row {
 1573:     my ($dissub,$lt,$subj_size,$extra) = @_;
 1574:     my $output = '<tr><td colspan="2">'.$lt->{'sb'}.':&nbsp;<input type="text" size="'.
 1575:                  $subj_size.'" name="subject" value="'.$dissub.'" />'.$extra.
 1576:                  '</td></tr>';
 1577:     return $output;
 1578: }
 1579: 
 1580: sub retrieve_instructor_comments {
 1581:     my ($user,$domain)=@_;
 1582:     my $target=$env{'form.grade_target'};
 1583:     if (! $env{'request.course.id'}) { return; }
 1584:     if (! &Apache::lonnet::allowed('dff',$env{'request.course.id'})
 1585: 	&& ! &Apache::lonnet::allowed('dff',$env{'request.course.id'}.
 1586: 				      '/'.$env{'request.course.sec'})) {
 1587: 	return;
 1588:     }
 1589:     my %records=&Apache::lonnet::dump('nohist_email',
 1590: 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
 1591: 			 $env{'course.'.$env{'request.course.id'}.'.num'},
 1592:                          '%255b'.$user.'%253a'.$domain.'%255d');
 1593:     my $result='';
 1594:     foreach my $key (sort(keys(%records))) {
 1595:         my %content=&Apache::lonmsg::unpackagemsg($records{$key});
 1596:         next if ($content{'senderdomain'} eq '');
 1597:         next if ($content{'subject'} !~ /^Record/);
 1598: 	# &Apache::lonfeedback::newline_to_br(\$content{'message'});
 1599: 	$result.='Recorded by '.
 1600:             $content{'sendername'}.':'.$content{'senderdomain'}."\n";
 1601:         $result.=
 1602:             &Apache::lontexconvert::msgtexconverted($content{'message'})."\n";
 1603:      }
 1604:     return $result;
 1605: }
 1606: 
 1607: sub disfacetoface {
 1608:     my ($r,$user,$domain)=@_;
 1609:     my $target=$env{'form.grade_target'};
 1610:     unless ($env{'request.course.id'}) { return; }
 1611:     if  (!&Apache::lonnet::allowed('dff',$env{'request.course.id'})
 1612: 	 && ! &Apache::lonnet::allowed('dff',$env{'request.course.id'}.
 1613: 				       '/'.$env{'request.course.sec'})) {
 1614: 	$r->print(&mt('Not allowed'));
 1615: 	return;
 1616:     }
 1617:     my %records=&Apache::lonnet::dump('nohist_email',
 1618: 			 $env{'course.'.$env{'request.course.id'}.'.domain'},
 1619: 			 $env{'course.'.$env{'request.course.id'}.'.num'},
 1620:                          '%255b'.$user.'%253a'.$domain.'%255d');
 1621:     my $result='';
 1622:     foreach my $key (sort(keys(%records))) {
 1623:         my %content=&Apache::lonmsg::unpackagemsg($records{$key});
 1624:         next if ($content{'senderdomain'} eq '');
 1625: 	&Apache::lonfeedback::newline_to_br(\$content{'message'});
 1626:         if ($content{'subject'}=~/^Record/) {
 1627: 	    $result.='<h3>'.&mt('Record').'</h3>';
 1628:         } elsif ($content{'subject'}=~/^Broadcast/) {
 1629:             $result .='<h3>'.&mt('Broadcast Message').'</h3>';
 1630:             if ($content{'subject'}=~/^Broadcast\./) {
 1631:                 if (defined($content{'coursemsgid'})) {
 1632:                     my $crsmsgid = &escape($content{'coursemsgid'});
 1633:                     my $broadcast_message = &general_message($crsmsgid);
 1634:                     $content{'message'} = '<b>'.&mt('Subject').': '.$content{'message'}.'</b><br />'.$broadcast_message;
 1635:                 } else {
 1636:                     %content=&Apache::lonmsg::unpackagemsg($content{'message'});
 1637:                     $content{'message'} =
 1638:                     '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
 1639:                     $content{'message'};
 1640:                 }
 1641:             }
 1642:         } elsif ($content{'subject'}=~/^Archive/) {
 1643:             $result.='<h3>'.&mt('Archived Message').'</h3>';
 1644:             if (defined($content{'coursemsgid'})) {
 1645:                 my $crsmsgid = &escape($content{'coursemsgid'});
 1646:                 my $archive_message = &general_message($crsmsgid);
 1647:                 $content{'message'} = '<b>'.&mt('Subject').': '.$content{'message'}.'</b><br />'.$archive_message;
 1648:             } else {
 1649:                 %content=&Apache::lonmsg::unpackagemsg($content{'message'});
 1650:                 $content{'message'} =
 1651:                 '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br
 1652: '.
 1653:                 $content{'message'};
 1654:             }
 1655:         } else {
 1656:             $result.='<h3>'.&mt('Critical Message').'</h3>';
 1657:             if (defined($content{'coursemsgid'})) {
 1658:                 my $crsmsgid=&escape($content{'coursemsgid'});
 1659:                 my $critical_message = &general_message($crsmsgid);
 1660:                 $content{'message'} = '<b>'.&mt('Subject').': '.$content{'message'}.'</b><br />'.$critical_message;
 1661:             } else {
 1662:                 %content=&Apache::lonmsg::unpackagemsg($content{'message'});
 1663:                 $content{'message'}=
 1664:                 '<b>'.&mt('Subject').': '.$content{'subject'}.'</b><br />'.
 1665: 		$content{'message'};
 1666:             }
 1667:         }
 1668:         $result.=&mt('By').': <b>'.
 1669: &Apache::loncommon::aboutmewrapper(
 1670:  &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),$content{'sendername'},$content{'senderdomain'}).'</b> ('.
 1671: $content{'sendername'}.':'.
 1672:             $content{'senderdomain'}.') '.$content{'time'}.
 1673:             '<br /><pre>'.
 1674:               &Apache::lontexconvert::msgtexconverted($content{'message'}).
 1675: 	      '</pre>';
 1676:      }
 1677:     # Check to see if there were any messages.
 1678:     if ($result eq '') {
 1679:         my $lctype = lc(&Apache::loncommon::course_type());
 1680: 	if ($target ne 'tex') { 
 1681: 	    $r->print("<p><b>".&mt('No notes, face-to-face discussion records, critical messages, or broadcast messages in this [_1].',$lctype)."</b></p>");
 1682: 	} else {
 1683: 	    $r->print('\textbf{'.&mt('No notes, face-to-face discussion records, critical messages or broadcast messages in this [_1].',$lctype).'}\\\\');
 1684: 	}
 1685:     } else {
 1686:        $r->print($result);
 1687:     }
 1688: }
 1689: 
 1690: sub general_message {
 1691:     my ($crsmsgid) = @_;
 1692:     my %general_content;
 1693:     if ($crsmsgid) { 
 1694:         my %course_content = &Apache::lonnet::get('nohist_email',[$crsmsgid],
 1695:                            $env{'course.'.$env{'request.course.id'}.'.domain'},
 1696:                            $env{'course.'.$env{'request.course.id'}.'.num'});
 1697:         %general_content = &Apache::lonmsg::unpackagemsg($course_content{$crsmsgid});
 1698:     }
 1699:     return $general_content{'message'};
 1700: }
 1701: 
 1702: # ---------------------------------------------------------------- Face to face
 1703: 
 1704: sub facetoface {
 1705:     my ($r,$stage)=@_;
 1706:     if (!&Apache::lonnet::allowed('dff',$env{'request.course.id'})
 1707: 	&& ! &Apache::lonnet::allowed('dff',$env{'request.course.id'}.
 1708: 				      '/'.$env{'request.course.sec'})) {
 1709: 	$r->print(&mt('Not allowed'));
 1710: 	return;
 1711:     }
 1712:     my $crstype = &Apache::loncommon::course_type();
 1713:     my $leaders = ($crstype eq 'Group') ? 'coordinators and leaders'
 1714:                                         : 'faculty and staff';
 1715:     &printheader($r,
 1716: 		 '/adm/email?recordftf=query',
 1717: 		 "User Notes, Face-to-Face, Critical Messages, Broadcast Messages, Archived Messages");
 1718: # from query string
 1719: 
 1720:     if ($env{'form.recname'}) { $env{'form.recuname'}=$env{'form.recname'}; }
 1721:     if ($env{'form.recdom'}) { $env{'form.recdomain'}=$env{'form.recdom'}; }
 1722: 
 1723:     my $defdom=$env{'user.domain'};
 1724: # already filled in
 1725:     if ($env{'form.recdomain'}) { $defdom=$env{'form.recdomain'}; }
 1726: # generate output
 1727:     my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
 1728:     my $stdbrws = &Apache::loncommon::selectstudent_link
 1729: 	('stdselect','recuname','recdomain');
 1730:     my %lt=&Apache::lonlocal::texthash('user' => 'Username',
 1731: 				       'dom' => 'Domain',
 1732: 				       'head' => "User Notes, Records of Face-To-Face Discussions, Critical Messages, Broadcast Messages and Archived Messages in $crstype",
 1733: 				       'subm' => 'Retrieve discussion and message records',
 1734: 				       'newr' => 'New Record (record is visible to '.lc($crstype).' '.$leaders.')',
 1735: 				       'post' => 'Post this Record');
 1736:     $r->print(<<"ENDTREC");
 1737: <h3>$lt{'head'}</h3>
 1738: <form method="post" action="/adm/email" name="stdselect">
 1739: <input type="hidden" name="recordftf" value="retrieve" />
 1740: <table>
 1741: <tr><td>$lt{'user'}:</td><td><input type="text" size="12" name="recuname" value="$env{'form.recuname'}" /></td>
 1742: <td rowspan="2">
 1743: $stdbrws
 1744: <input type="submit" value="$lt{'subm'}" /></td>
 1745: </tr>
 1746: <tr><td>$lt{'dom'}:</td>
 1747: <td>$domform</td></tr>
 1748: </table>
 1749: </form>
 1750: ENDTREC
 1751:     if (($stage ne 'query') &&
 1752:         ($env{'form.recdomain'}) && ($env{'form.recuname'})) {
 1753:         chomp($env{'form.newrecord'});
 1754:         if ($env{'form.newrecord'}) {
 1755: 	    &Apache::lonmsg::store_instructor_comment($env{'form.newrecord'},
 1756: 						      $env{'form.recuname'},
 1757: 						      $env{'form.recdomain'});
 1758:         }
 1759:         $r->print('<h3>'.&Apache::loncommon::plainname($env{'form.recuname'},
 1760: 				     $env{'form.recdomain'}).'</h3>');
 1761:         &disfacetoface($r,$env{'form.recuname'},$env{'form.recdomain'});
 1762: 	$r->print(<<ENDRHEAD);
 1763: <form method="post" action="/adm/email">
 1764: <input name="recdomain" value="$env{'form.recdomain'}" type="hidden" />
 1765: <input name="recuname" value="$env{'form.recuname'}" type="hidden" />
 1766: ENDRHEAD
 1767:         $r->print(<<ENDBFORM);
 1768: <hr />$lt{'newr'}<br />
 1769: <textarea name="newrecord" cols="80" rows="10" wrap="hard"></textarea>
 1770: <br />
 1771: <input type="hidden" name="recordftf" value="post" />
 1772: <input type="submit" value="$lt{'post'}" />
 1773: </form>
 1774: ENDBFORM
 1775:     }
 1776: }
 1777: 
 1778: # ----------------------------------------------------------- Blocking during exams
 1779: 
 1780: sub examblock {
 1781:     my ($r,$action) = @_;
 1782:     unless ($env{'request.course.id'}) { return;}
 1783:     if (!&Apache::lonnet::allowed('dcm',$env{'request.course.id'})
 1784: 	&& ! &Apache::lonnet::allowed('dcm',$env{'request.course.id'}.
 1785: 				      '/'.$env{'request.course.sec'})) {
 1786: 	$r->print('Not allowed');
 1787: 	return;
 1788:     }
 1789:     my $usertype = (&Apache::loncommon::course_type() eq 'Group') ? 'members'
 1790: 	                                                          : 'students';
 1791:     my %lt=&Apache::lonlocal::texthash(
 1792:             'comb' => 'Communication Blocking',
 1793:             'cbds' => 'Communication blocking during scheduled exams',
 1794:             'desc' => "You can use communication blocking to prevent $usertype enrolled in this course from displaying LON-CAPA messages sent by other $usertype during an online exam. As blocking of communication could potentially interrupt legitimate communication between $usertype 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.",
 1795:              'mecb' => 'Modify existing communication blocking periods',
 1796:              'ncbc' => 'No communication blocks currently saved',
 1797:              'stor' => 'Save',
 1798:     );
 1799: 
 1800:     my %ltext = &Apache::lonlocal::texthash(
 1801:             'dura' => 'Duration',
 1802:             'setb' => 'Set by',
 1803:             'even' => 'Event',
 1804:             'blck' => 'Blocked?',
 1805:             'actn' => 'Action',
 1806:             'star' => 'Start',
 1807:             'endd' => 'End'
 1808:     );
 1809: 
 1810:     &printheader($r,'/adm/email?block=display',$lt{'comb'});
 1811:     $r->print('<h3>'.$lt{'cbds'}.'</h3>');
 1812: 
 1813:     if ($action eq 'store') {
 1814:         &blockstore($r);
 1815:     }
 1816: 
 1817:     $r->print($lt{'desc'}.'<br /><br />
 1818:                <form name="blockform" method="post" action="/adm/email?block=store">
 1819:              ');
 1820: 
 1821:     $r->print('<h4>'.$lt{'mecb'}.'</h4>');
 1822:     my %records = ();
 1823:     my $blockcount = 0;
 1824:     my $parmcount = 0;
 1825:     &get_blockdates(\%records,\$blockcount);
 1826:     if ($blockcount > 0) {
 1827:         $parmcount = &display_blocker_status($r,\%records,\%ltext);
 1828:     } else {
 1829:         $r->print($lt{'ncbc'}.'<br /><br />');
 1830:     }
 1831:     &display_addblocker_table($r,$parmcount,\%ltext);
 1832:     my $end_page=&Apache::loncommon::end_page();
 1833:     $r->print(<<"END");
 1834: <br />
 1835: <input type="hidden" name="blocktotal" value="$blockcount" />
 1836: <input type ="submit" value="$lt{'stor'}" />
 1837: </form>
 1838: $end_page
 1839: END
 1840:     return;
 1841: }
 1842: 
 1843: sub blockstore {
 1844:     my $r = shift;
 1845:     my %lt=&Apache::lonlocal::texthash(
 1846:             'tfcm' => 'The following changes were made',
 1847:             'ncwm' => 'No changes were made.' 
 1848:     );
 1849:     my %adds = ();
 1850:     my %removals = ();
 1851:     my %cancels = ();
 1852:     my $modtotal = 0;
 1853:     my $canceltotal = 0;
 1854:     my $addtotal = 0;
 1855:     my %blocking = ();
 1856:     $r->print('<h3>'.$lt{'head'}.'</h3>');
 1857:     foreach my $envkey (keys(%env)) {
 1858:         if ($envkey =~ m/^form\.modify_(\d+)$/) {
 1859:             $adds{$1} = $1;
 1860:             $removals{$1} = $1;
 1861:             $modtotal ++;
 1862:         } elsif ($envkey =~ m/^form\.cancel_(\d+)$/) {
 1863:             $cancels{$1} = $1;
 1864:             unless ( defined($removals{$1}) ) {
 1865:                 $removals{$1} = $1;
 1866:                 $canceltotal ++;
 1867:             }
 1868:         } elsif ($envkey =~ m/^form\.add_(\d+)$/) {
 1869:             $adds{$1} = $1;
 1870:             $addtotal ++;
 1871:         } 
 1872:     }
 1873: 
 1874:     foreach my $key (keys(%removals)) {
 1875:         my $hashkey = $env{'form.key_'.$key};
 1876:         &Apache::lonnet::del('comm_block',["$hashkey"],
 1877:                          $env{'course.'.$env{'request.course.id'}.'.domain'},
 1878:                          $env{'course.'.$env{'request.course.id'}.'.num'}
 1879:                          );
 1880:     }
 1881:     foreach my $key (keys(%adds)) {
 1882:         unless ( defined($cancels{$key}) ) {
 1883:             my ($newstart,$newend) = &get_dates_from_form($key);
 1884:             my $newkey = $newstart.'____'.$newend;
 1885:             my $blocktypes = &get_block_choices($key);
 1886:             $blocking{$newkey} = {
 1887:                           setter => $env{'user.name'}.':'.$env{'user.domain'},
 1888:                           event  => &escape($env{'form.title_'.$key}),
 1889:                           blocks => $blocktypes,
 1890:                         };
 1891:         }
 1892:     }
 1893:     if ($addtotal + $modtotal > 0) {
 1894:         &Apache::lonnet::put('comm_block',\%blocking,
 1895:                      $env{'course.'.$env{'request.course.id'}.'.domain'},
 1896:                      $env{'course.'.$env{'request.course.id'}.'.num'}
 1897:                      );
 1898:     }
 1899:     my $chgestotal = $canceltotal + $modtotal + $addtotal;
 1900:     if ($chgestotal > 0) {
 1901:         $r->print($lt{'tfcm'}.'<ul>');
 1902:         if ($canceltotal > 0) {
 1903:             $r->print('<li>'.&mt('[quant,_1,communication blocking period was,communication blocking periods were] removed.',$canceltotal).'</li>');
 1904:         }
 1905:         if ($modtotal > 0) {
 1906:             $r->print('<li>'.&mt('[quant,_1,communication blocking period was,communication blocking periods were] modified.',$modtotal).'</li>');
 1907:         }
 1908:         if ($addtotal > 0) {
 1909:             $r->print('<li>'.&mt('[quant,_1,communication blocking period was,communication blocking periods were] added.',$addtotal).'</li>');
 1910:         }
 1911:         $r->print('</ul>');
 1912:     } else {
 1913:         $r->print($lt{'ncwm'});
 1914:     }
 1915:     $r->print('<br />');
 1916:     return;
 1917: }
 1918: 
 1919: sub get_dates_from_form {
 1920:     my $item = shift;
 1921:     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$item);
 1922:     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$item);
 1923:     return ($startdate,$enddate);
 1924: }
 1925: 
 1926: sub get_blockdates {
 1927:     my ($records,$blockcount) = @_;
 1928:     $$blockcount = 0;
 1929:     %{$records} = &Apache::lonnet::dump('comm_block',
 1930:                          $env{'course.'.$env{'request.course.id'}.'.domain'},
 1931:                          $env{'course.'.$env{'request.course.id'}.'.num'}
 1932:                          );
 1933:     $$blockcount = keys(%{$records});
 1934: 
 1935:     if ((keys(%{$records}))[0] =~ /^error: 2 /) {
 1936: 	$records = {};
 1937: 	$$blockcount = 0;
 1938:     }
 1939: }
 1940: 
 1941: sub get_block_choices {
 1942:     my $item = shift;
 1943:     my $blocklist;
 1944:     my ($typeorder,$types) = &blocktype_text();
 1945:     foreach my $type (@{$typeorder}) {
 1946:         if ($env{'form.'.$type.'_'.$item}) {
 1947:             $blocklist->{$type} = 'on'; 
 1948:         } else {
 1949:             $blocklist->{$type} = 'off';
 1950:         }
 1951:     }
 1952:     return $blocklist;
 1953: }
 1954: 
 1955: sub display_blocker_status {
 1956:     my ($r,$records,$ltext) = @_;
 1957:     my $parmcount = 0;
 1958:   
 1959:     my %lt = &Apache::lonlocal::texthash(
 1960:         'modi' => 'Modify',
 1961:         'canc' => 'Cancel',
 1962:     );
 1963:     my ($typeorder,$types) = &blocktype_text();
 1964:     $r->print(&Apache::loncommon::start_data_table());
 1965:     $r->print(<<"END");
 1966:   <tr>
 1967:     <th>$ltext->{'dura'}</th>
 1968:     <th>$ltext->{'setb'}</th>
 1969:     <th>$ltext->{'even'}</th>
 1970:     <th>$ltext->{'blck'}</th>
 1971:     <th>$ltext->{'actn'}?</th>
 1972:   </tr>
 1973: END
 1974:     foreach my $record (sort(keys(%{$records}))) {
 1975:         my $onchange = 'onFocus="javascript:window.document.forms['.
 1976:                        "'blockform'].elements['modify_".$parmcount."'].".
 1977:                        'checked=true;"';
 1978:         my ($start,$end) = split(/____/,$record);
 1979:         my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 1980:         my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 1981: 	
 1982: 	my ($setuname,$setudom,$title,$blocks) = 
 1983: 	    &Apache::loncommon::parse_block_record($$records{$record});
 1984: 	$title = &HTML::Entities::encode($title,'"<>&');
 1985:         my $settername = 
 1986:            &Apache::loncommon::aboutmewrapper(
 1987:                            &Apache::loncommon::plainname($setuname,$setudom),
 1988:                            $setuname,$setudom);
 1989:         $r->print(&Apache::loncommon::start_data_table_row());
 1990:         $r->print(<<"END");
 1991:         <td>$ltext->{'star'}:&nbsp;$startform<br/>$ltext->{'endd'}:&nbsp;&nbsp;$endform</td>
 1992:         <td>$settername</td>
 1993:         <td><input type="text" name="title_$parmcount" size="15" value="$title" /><input type="hidden" name="key_$parmcount" value="$record" /></td>
 1994:         <td>
 1995: END
 1996:         foreach my $block (@{$typeorder}) {
 1997:             my $blockstatus = '';
 1998:             if ($blocks->{$block} eq 'on') {
 1999:                 $blockstatus = 'checked="true"';
 2000:             }
 2001:             $r->print('<label><input type="checkbox" name="'.$block.'_'.$parmcount.'" '.$blockstatus.' value="1" />'.$types->{$block}.'</label><br />');
 2002:         }
 2003:         $r->print(<<"END");
 2004:         </td>      
 2005:         <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>
 2006: END
 2007:         $r->print(&Apache::loncommon::end_data_table_row());
 2008:         $parmcount++;
 2009:     }
 2010:     $r->print(<<"END");
 2011: </table>
 2012: <br />
 2013: <br />
 2014: END
 2015:     return $parmcount;
 2016: }
 2017: 
 2018: sub display_addblocker_table {
 2019:     my ($r,$parmcount,$ltext) = @_;
 2020:     my $start = time;
 2021:     my $end = $start + (60 * 60 * 2); #Default is an exam of 2 hours duration.
 2022:     my $onchange = 'onFocus="javascript:window.document.forms['.
 2023:                    "'blockform'].elements['add_".$parmcount."'].".
 2024:                    'checked=true;"';
 2025:     my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.$parmcount,$start,$onchange);
 2026:     my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.$parmcount,$end,$onchange);
 2027:     my %lt = &Apache::lonlocal::texthash(
 2028:         'addb' => 'Add block',
 2029:         'exam' => 'e.g., Exam 1',
 2030:         'addn' => 'Add new communication blocking periods'
 2031:     );
 2032:     my ($typeorder,$types) = &blocktype_text();
 2033:     $r->print(<<"END");
 2034: <h4>$lt{'addn'}</h4> 
 2035: END
 2036:     $r->print(&Apache::loncommon::start_data_table());
 2037:     $r->print(<<"END");
 2038:    <tr>
 2039:      <th>$ltext->{'dura'}</th>
 2040:      <th>$ltext->{'even'} $lt{'exam'}</th>
 2041:      <th>$ltext->{'blck'}</th>
 2042:      <th>$ltext->{'actn'}?</th>
 2043:    </tr>
 2044: END
 2045:     $r->print(&Apache::loncommon::start_data_table_row());
 2046:     $r->print(<<"END");
 2047:      <td>$ltext->{'star'}:&nbsp;$startform<br />$ltext->{'endd'}:&nbsp;&nbsp;$endform</td>
 2048:      <td><input type="text" name="title_$parmcount" size="15" value="" /></td>
 2049:      <td>
 2050: END
 2051:     foreach my $block (@{$typeorder}) {
 2052:         $r->print('<label><input type="checkbox" name="'.$block.'_'.$parmcount.'" value="1" />'.$types->{$block}.'</label><br />');
 2053:      }
 2054:      $r->print(<<"END");
 2055:      </td> 
 2056:      <td><label>$lt{'addb'}?&nbsp;<input type="checkbox" name="add_$parmcount" value="1" /></label></td>
 2057: END
 2058:     $r->print(&Apache::loncommon::end_data_table_row());
 2059:     $r->print(&Apache::loncommon::end_data_table());
 2060:     return;
 2061: }
 2062: 
 2063: sub blocktype_text {
 2064:     my %types = &Apache::lonlocal::texthash(
 2065:         'com' => 'Messaging',
 2066:         'chat' => 'Chat',
 2067:         'boards' => 'Discussion',
 2068:         'port' => 'Portfolio',
 2069:         'groups' => 'Groups',
 2070:         'blogs' => 'Blogs',
 2071:     );
 2072:     my $typeorder = ['com','chat','boards','port','groups','blogs'];
 2073:     return ($typeorder,\%types);
 2074: }
 2075: 
 2076: # ----------------------------------------------------------- Display a message
 2077: 
 2078: sub displaymessage {
 2079:     my ($r,$msgid,$folder,$msgstatus)=@_;
 2080:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
 2081:     my %blocked = ();
 2082:     my %setters = ();
 2083:     my $numblocked = 0;
 2084:     my $crstype = &Apache::loncommon::course_type();
 2085: 
 2086: # info to generate "next" and "previous" buttons and check if message is blocked
 2087:     my ($startblock,$endblock) = &Apache::loncommon::blockcheck(\%setters,'com');
 2088:     my @messages=&sortedmessages(\%blocked,$startblock,$endblock,\$numblocked,$folder,$msgstatus);
 2089:     if ( $blocked{$msgid} eq 'ON' ) {
 2090:         &printheader($r,'/adm/email',&mt('Display a Message'));
 2091:         $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.'));
 2092:         &build_block_table($r,$startblock,$endblock,\%setters);
 2093:         return;
 2094:     }
 2095:     if ($msgstatus eq '') {
 2096:         &statuschange($msgid,'read',$folder);
 2097:     }
 2098:     my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 2099:     my %content=&Apache::lonmsg::unpackagemsg($message{$msgid});
 2100:     my $counter=0;
 2101:     my $escmsgid=&escape($msgid);
 2102:     foreach (@messages) {
 2103: 	if ($_->[5] eq $escmsgid){
 2104: 	    last;
 2105: 	}
 2106: 	$counter++;
 2107:     }
 2108: 
 2109:     my $see_anonymous;
 2110:     my $from_student = 0;
 2111:     if ($env{'request.course.id'} eq $content{'courseid'}) {
 2112: 	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2113: 	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 2114: 	my $username = $content{'sendername'}.':'.$content{'senderdomain'};
 2115: 	my %classlist_entry =
 2116: 	    &Apache::lonnet::get('classlist',[$username],$cdom,$cnum);
 2117: 	if (exists($classlist_entry{$username})) {
 2118: 	    $from_student = 1;
 2119: 	    $see_anonymous = &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
 2120: 	}
 2121:     }
 2122: 
 2123: 
 2124:     my $number_of_messages = scalar(@messages); #subtract 1 for last index
 2125: # start output
 2126:     &printheader($r,'/adm/email?display='.&escape($msgid),'Display a Message','',$content{'baseurl'});
 2127:     my %courseinfo=&Apache::lonnet::coursedescription($content{'courseid'});
 2128: # Functions
 2129:     $r->print('<table border="2" width="100%"><tr bgcolor="#FFFFAA"><td>'.&mt('Functions').':</td>');
 2130:     if (!$content{'noreplies'}) {
 2131:         $r->print('<td><a href="/adm/email?replyto='.&escape($msgid).$sqs.
 2132: 	          '"><b>'.&mt('Reply').'</b></a></td>');
 2133:     }
 2134:     $r->print('<td><a href="/adm/email?forward='.&escape($msgid).$sqs.
 2135: 	      '"><b>'.&mt('Forward').'</b></a></td>'.
 2136: 	      '<td><a href="/adm/email?markunread='.&escape($msgid).$sqs.
 2137: 	      '"><b>'.&mt('Mark Unread').'</b></a></td>'.
 2138: 	      '<td><a href="/adm/email?markdel='.&escape($msgid).$sqs.
 2139: 	      '"><b>'.&mt('Delete').'</b></a></td>'.
 2140: 	      '<td><a href="/adm/email?'.$sqs.
 2141: 	      '"><b>'.&mt('Back to Folder Display').'</b></a></td>');
 2142:     if ($counter > 0){
 2143: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter-1]->[5].$sqs.
 2144: 		  '"><b>'.&mt('Previous').'</b></a></td>');
 2145:     }
 2146:     if ($counter < $number_of_messages - 1){
 2147: 	$r->print('<td><a href="/adm/email?display='.$messages[$counter+1]->[5].$sqs.
 2148: 		  '"><b>'.&mt('Next').'</b></a></td>');
 2149:     }
 2150:     $r->print('</tr></table>');
 2151:     my $symb;
 2152:     if (defined($content{'symb'})) {
 2153:         $symb = $content{'symb'};
 2154:     } elsif (defined($content{'baseurl'})) {
 2155:         $symb=&Apache::lonnet::symbread($content{'baseurl'});
 2156:     }
 2157:     if ($env{'user.adv'}) {
 2158:         my $actionlist='';
 2159: 	if (&Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
 2160: 		$actionlist.='<td><b>'
 2161:                             .&Apache::loncommon::track_student_link(
 2162:                                  &mt('View recent activity'),$content{'sendername'},$content{'senderdomain'},'check')
 2163:                             .'</b></td>';
 2164: 	}
 2165: 	if (&Apache::lonnet::allowed('opa',$env{'request.course.id'}) && $symb) {
 2166: 	    $actionlist.='<td><b>'
 2167:                         .&Apache::loncommon::pprmlink(
 2168:                              &mt('Set/Change parameters'),$content{'sendername'},$content{'senderdomain'},$symb,'check')
 2169:                         .'</b></td>';
 2170: 	}
 2171: 	if (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}) && $symb) {
 2172: 	    $actionlist.='<td><b>'
 2173:                        .&Apache::loncommon::pgrdlink(
 2174:                             &mt('Set/Change grades'),$content{'sendername'},$content{'senderdomain'},$symb,'check')
 2175:                        .'</b></td>';
 2176: 	}
 2177:         if ($actionlist) {
 2178:             $r->print('<table border="2" width="100%">'
 2179:                      .'<tr bgcolor="#FFAAAA"><td>'
 2180:                      .&mt('Currently available actions (will open extra window):')
 2181:                      .'</td>'
 2182:                      .$actionlist
 2183:                      .'</tr></table>');
 2184:         }
 2185:     }
 2186:     my ($tolist,$cclist);
 2187:     my (@recipients,@ccs);
 2188:     if (ref($content{'recuser'}) eq 'ARRAY') {
 2189:         for (my $i=0; $i<@{$content{'recuser'}}; $i++) {
 2190:             $recipients[$i] =  &Apache::loncommon::aboutmewrapper(
 2191:                &Apache::loncommon::plainname($content{'recuser'}[$i],
 2192:                                       $content{'recdomain'}[$i]),
 2193:                   $content{'recuser'}[$i],$content{'recdomain'}[$i]).
 2194:            ' ('.$content{'recuser'}[$i].' '.&mt('at').' '.$content{'recdomain'}[$i].') ';
 2195:         }
 2196:     }
 2197:     $tolist = join(', ',@recipients);
 2198:     if ($content{'recipid'}) {
 2199:         @ccs = &retrieve_cc_recips('display',%content);
 2200:         $cclist = join(', ',@ccs);
 2201:     }
 2202:     my ($restitle,$baseurl,$refers_to);
 2203:     if (defined($content{'resource_title'})) {
 2204:         $restitle = $content{'resource_title'};
 2205:     } else {
 2206:         if (defined($content{'baseurl'})) {
 2207:             $restitle = &Apache::lonnet::gettitle($content{'baseurl'});
 2208:         }
 2209:     }
 2210:     if (defined($content{'baseurl'})) {
 2211:         $baseurl = &Apache::lonenc::check_encrypt($content{'baseurl'});
 2212:     }
 2213:     if ($from_student && $see_anonymous ) {
 2214: 	$r->print(&Apache::loncommon::student_image_tag($content{'senderdomain'},$content{'sendername'}));
 2215:     }
 2216: 
 2217:     # Display LON-CAPA Message (Start)
 2218:     # Subject
 2219:     $r->print('<br />'
 2220:              .&Apache::lonhtmlcommon::start_pick_box()
 2221:              .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
 2222:              .$content{'subject'}
 2223:              .&Apache::lonhtmlcommon::row_closure()
 2224:     );
 2225:     if ($folder eq 'sent') {
 2226:         # To
 2227:         $r->print(&Apache::lonhtmlcommon::row_title(&mt('To'))
 2228:                  .$tolist
 2229:                  .&Apache::lonhtmlcommon::row_closure()
 2230:         );
 2231:         if ($content{'replytoaddr'}) {
 2232:             my ($replytoname,$replytodom) = split(/:/,$content{'replytoaddr'});
 2233:             if ($replytoname ne '' && $replytodom ne '') {
 2234:                 $r->print(&Apache::lonhtmlcommon::row_title(&mt('Reply To'))
 2235:                          .&mt('[_1] at [_2]',$replytoname,$replytodom)
 2236:                          .&Apache::lonhtmlcommon::row_closure()
 2237:                 );
 2238:             }
 2239:         }
 2240:     } else {
 2241:         # From, Reply
 2242:         $r->print(&Apache::lonhtmlcommon::row_title(&mt('From'))
 2243:                  .&Apache::loncommon::aboutmewrapper(
 2244:                      &Apache::loncommon::plainname($content{'sendername'},$content{'senderdomain'}),
 2245:                                                  $content{'sendername'},$content{'senderdomain'})
 2246:         );
 2247:         if ($content{'noreplies'}) {
 2248:             $r->print(' ('.&mt('No replies to sender').')'
 2249:                      .&Apache::lonhtmlcommon::row_closure()
 2250:             ); 
 2251:         } else {
 2252:             if ($content{'replytoaddr'}) {
 2253:                 my ($replytoname,$replytodom) = split(/:/,$content{'replytoaddr'});
 2254:                 if ($replytoname ne '' && $replytodom ne '') {
 2255:                     $r->print(&Apache::lonhtmlcommon::row_closure()
 2256:                              .&Apache::lonhtmlcommon::row_title(&mt('Reply To'))
 2257:                              .&mt('[_1] at [_2]',$replytoname,$replytodom)
 2258:                              .&Apache::lonhtmlcommon::row_closure()
 2259:                     );
 2260:                 } else {
 2261:                     $r->print(&Apache::lonhtmlcommon::row_closure());
 2262:                 }
 2263:             } else {
 2264:                 $r->print(' ('.&mt('[_1] at [_2]',$content{'sendername'},$content{'senderdomain'}).') '
 2265:                          .&Apache::lonhtmlcommon::row_closure()
 2266:                 );
 2267:             }
 2268:             if ($cclist) {
 2269:                 $r->print(&Apache::lonhtmlcommon::row_title(&mt('Cc'))
 2270:                          .$cclist
 2271:                          .&Apache::lonhtmlcommon::row_closure()
 2272:                     );
 2273: 
 2274:             }
 2275:         }
 2276:     }
 2277: 
 2278:     # Course
 2279:     if ($content{'courseid'}) {
 2280:         $r->print(&Apache::lonhtmlcommon::row_title(&mt($crstype))
 2281:                  .$courseinfo{'description'}
 2282:         );
 2283:         if ($content{'coursesec'}) {
 2284:             $r->print(' ('.&mt('Section').': '.$content{'coursesec'}.')');
 2285:         }
 2286:         $r->print(&Apache::lonhtmlcommon::row_closure());
 2287:     }
 2288:     $r->print(&Apache::lonhtmlcommon::row_title(&mt('Time'))
 2289:              .$content{'time'}
 2290:              .&Apache::lonhtmlcommon::row_closure()
 2291:     );
 2292: 
 2293:     # Refers to
 2294:     if ($baseurl) {
 2295:         if (defined($content{'courseid'}) && defined($env{'request.course.id'})) {
 2296:             if ($content{'courseid'} eq $env{'request.course.id'}) {
 2297:                 my $symblink;
 2298:                 my $showsymb = &Apache::lonenc::check_decrypt($symb);
 2299:                 my $showurl = &Apache::lonenc::check_decrypt($baseurl);
 2300:                 my $encrypturl = &Apache::lonnet::EXT('resource.0.encrypturl',
 2301:                               $showsymb,$env{'user.domain'},$env{'user.name'});
 2302:                 if ($symb) {
 2303:                     if ($encrypturl =~ /^yes$/i && !$env{'request.role.adv'}) {
 2304:                         $showsymb = &Apache::lonenc::check_encrypt($symb);
 2305:                     }
 2306:                     $symblink = '?symb='.$showsymb;
 2307:                 }
 2308:                 if ($encrypturl =~ /^yes$/i && !$env{'request.role.adv'}) {
 2309:                     $showurl = $baseurl;
 2310:                 }
 2311:                 $r->print(&Apache::lonhtmlcommon::row_title(&mt('Refers to'))
 2312:                          .'<a href="'.$showurl.$symblink.'">'.$restitle.'</a>'
 2313:                          .&Apache::lonhtmlcommon::row_closure()
 2314:                 );
 2315:                 $refers_to = 1;
 2316:             }
 2317:         }
 2318:         if (!$refers_to) {
 2319:             if ($baseurl =~ m-^/enc/-) {
 2320:                 if (defined($content{'courseid'})) {
 2321:                     if (!$env{'request.course.id'}) {
 2322:                         my $unencurl =
 2323:                            &Apache::lonenc::unencrypted($baseurl,
 2324:                                                         $content{'courseid'});
 2325:                         if ($unencurl ne '') {
 2326:                             if (&Apache::lonnet::allowed('bre',$unencurl)) {
 2327:                                 $r->print(&Apache::lonhtmlcommon::row_title(&mt('Refers to'))
 2328:                                          .'<a href="'.$unencurl.'">'.$restitle.'</a>'
 2329:                                          .&Apache::lonhtmlcommon::row_closure()
 2330:                                 );
 2331:                             }
 2332:                         }
 2333:                     }
 2334:                 }
 2335:             } else {
 2336:                 if (&Apache::lonnet::allowed('bre',$baseurl)) {
 2337:                     $r->print(&Apache::lonhtmlcommon::row_title(&mt('Refers to'))
 2338:                              .'<a href="'.$baseurl.'">'.$restitle.'</a>'
 2339:                              .&Apache::lonhtmlcommon::row_closure()
 2340:                     );
 2341: 
 2342:                 }
 2343:             }
 2344:         }
 2345:     }
 2346: 
 2347:     # Message
 2348:     $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message'))
 2349:              .'<pre>'
 2350: 	     .&Apache::lontexconvert::msgtexconverted($content{'message'},1)
 2351: 	     .'</pre>'
 2352:     );
 2353:     if (&displayresource(%content)) {
 2354:         $r->print(&Apache::lonhtmlcommon::row_closure()
 2355:                  .&Apache::lonhtmlcommon::row_title(&mt('Resource Details'))
 2356:                  .&displayresource(%content)
 2357:         );
 2358:     } 
 2359:     $r->print(&Apache::lonhtmlcommon::row_closure(1).
 2360:               &Apache::lonhtmlcommon::end_pick_box());
 2361:     # Display LON-CAPA Message (End)
 2362:     return;
 2363: }
 2364: 
 2365: sub retrieve_cc_recips {
 2366:     my ($context,%content) = @_; 
 2367:     my %reciphash =
 2368:          &Apache::lonnet::get('nohist_emailrecip',[$content{'recipid'}],
 2369:                               $content{'senderdomain'},$content{'sendername'});
 2370:     my $recipinfo = $reciphash{$content{'recipid'}};
 2371:     my @ccs;
 2372:     if (ref($recipinfo) eq 'HASH') {
 2373:         if (ref($recipinfo->{'cc'}) eq 'HASH') {
 2374:             foreach my $cc (sort(keys(%{$recipinfo->{'cc'}}))) {
 2375:                 my ($ccname,$ccdom) = split(/:/,$cc);
 2376:                 if (!(($ccname eq $env{'user.name'}) &&
 2377:                      ($ccdom eq $env{'user.domain'}))) {
 2378:                     my $showcc ='<span class="LC_nobreak">';
 2379:                     if ($context eq 'replying') { 
 2380:                         $showcc = '<label><input type="checkbox" name="replying_cc" value="'.$cc.'" />';
 2381:                     }
 2382:                     $showcc .= &Apache::loncommon::aboutmewrapper(
 2383:                                        &Apache::loncommon::plainname($ccname,
 2384:                                          $ccdom),$ccname,$ccdom);
 2385: 		    if ($context eq 'replying') {
 2386: 			$showcc .='</label>';
 2387: 		    }
 2388: 		    $showcc .= '</span>';
 2389: 		    push(@ccs,$showcc);
 2390:                 }
 2391:             }
 2392:         }
 2393:     }
 2394:     return @ccs;
 2395: }
 2396: 
 2397: # =========================================================== Show the citation
 2398: 
 2399: sub displayresource {
 2400:     my %content=@_;
 2401: #
 2402: # If the recipient is in the same course that the message was sent from and
 2403: # has sufficient privileges, show "all details," else show citation
 2404: #
 2405:     if (($env{'request.course.id'} eq $content{'courseid'})
 2406:      && (&Apache::lonnet::allowed('vgr',$content{'courseid'}))) {
 2407:         my $symb;
 2408:         if (defined($content{'symb'})) {
 2409:             $symb = $content{'symb'};
 2410:         } else { 
 2411: 	    $symb=&Apache::lonnet::symbread($content{'baseurl'});
 2412:         }
 2413: # Could not get a symb, give up
 2414: 	unless ($symb) { return $content{'citation'}; }
 2415: # Have a symb, can render
 2416: 	return '<h2>'.&mt('Current attempts of student (if applicable)').'</h2>'.
 2417: 	    &Apache::loncommon::get_previous_attempt($symb,
 2418: 						     $content{'sendername'},
 2419: 						     $content{'senderdomain'},
 2420: 						     $content{'courseid'}).
 2421: 	    '<hr /><h2>'.&mt('Current screen output (if applicable)').'</h2>'.
 2422: 	    &Apache::loncommon::get_student_view($symb,
 2423: 						 $content{'sendername'},
 2424: 						 $content{'senderdomain'},
 2425: 						 $content{'courseid'}).
 2426: 	    '<h2>'.&mt('Correct Answer(s) (if applicable)').'</h2>'.
 2427: 	    &Apache::loncommon::get_student_answers($symb,
 2428: 						    $content{'sendername'},
 2429: 						    $content{'senderdomain'},
 2430: 						    $content{'courseid'});
 2431:     } elsif ($env{'user.adv'}) {
 2432: 	return $content{'citation'};
 2433:     }
 2434:     return '';
 2435: }
 2436: 
 2437: # ================================================================== The Header
 2438: 
 2439: sub header {
 2440:     my ($r,$title,$baseurl)=@_;
 2441:     
 2442:     my $extra = &Apache::loncommon::studentbrowser_javascript();
 2443:     if ($baseurl) {
 2444: 	$extra .= "<base href=\"".&Apache::lonnet::absolute_url()."/$baseurl\" />";
 2445:     }
 2446:     $r->print(&Apache::loncommon::start_page('Communication and Messages',
 2447:  					$extra));
 2448:     $r->print(&Apache::lonhtmlcommon::breadcrumbs
 2449:      		(($title?$title:'Communication and Messages')));
 2450: }
 2451: 
 2452: # ---------------------------------------------------------------- Print header
 2453: 
 2454: sub printheader {
 2455:     my ($r,$url,$desc,$title,$baseurl)=@_;
 2456:     &Apache::lonhtmlcommon::add_breadcrumb
 2457: 	({href=>$url,
 2458: 	  text=>$desc});
 2459:     &header($r,$title,$baseurl);
 2460: }
 2461: 
 2462: # ------------------------------------------------------------ Store the comment
 2463: 
 2464: sub storecomment {
 2465:     my ($r)=@_;
 2466:     my $msgtxt=&Apache::lonfeedback::clear_out_html($env{'form.message'});
 2467:     my $cleanmsgtxt='';
 2468:     foreach my $line (split(/[\n\r]/,$msgtxt)) {
 2469: 	unless ($line=~/^\s*(\>|\&gt\;)/) {
 2470: 	    $cleanmsgtxt.=$line."\n";
 2471: 	}
 2472:     }
 2473:     my $key=&escape($env{'form.baseurl'}).'___'.time;
 2474:     &Apache::lonnet::put('nohist_stored_comments',{ $key => $cleanmsgtxt });
 2475: }
 2476: 
 2477: sub storedcommentlisting {
 2478:     my ($r)=@_;
 2479:     my %msgs=&Apache::lonnet::dump('nohist_stored_comments',undef,undef,
 2480:        '^'.&escape(&escape($env{'form.showcommentbaseurl'})));
 2481:     $r->print(&Apache::loncommon::start_page('Saved Comment Listing',undef,
 2482: 					     {'onlybody' => 1}));
 2483:     if ((keys %msgs)[0]=~/^error\:/) {
 2484: 	$r->print(&mt('No saved comments yet.'));
 2485:     } else {
 2486: 	my $found=0;
 2487: 	foreach my $key (sort(keys(%msgs))) {
 2488: 	    $r->print("\n".$msgs{$key}."<hr />");
 2489: 	    $found=1;
 2490: 	}
 2491: 	unless ($found) {
 2492: 	    $r->print(&mt('No saved comments yet for this resource.'));
 2493: 	}
 2494:     }
 2495: }
 2496: 
 2497: # ---------------------------------------------------------------- Send an email
 2498: 
 2499: sub sendoffmail {
 2500:     my ($r,$folder)=@_;
 2501:     my $suffix=&Apache::lonmsg::foldersuffix($folder);
 2502:     my $sendstatus='';
 2503:     my %msg_status;
 2504:     my $numsent = 0;
 2505:     my $nosentstore = 1;
 2506:     my $attachmenturl;
 2507:     my $now = time;
 2508:     my ($cdom,$cnum,$group);
 2509:     if (exists($env{'form.group'})) {
 2510:         $group = $env{'form.group'};
 2511:     }
 2512:     if (exists($env{'request.course.id'})) {
 2513:         $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 2514:         $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2515:     }
 2516:     if ($env{'form.send'}) {
 2517:         if (!$env{'form.multiforward'}) { 
 2518:             if ($group eq '') {
 2519: 	        &printheader($r,'','Messages being sent.');
 2520:             } else {
 2521:                 $r->print(&groupmail_header('sending',$group));
 2522:             }
 2523:         }
 2524: 	$r->rflush();
 2525: 	my %content=();
 2526: 	undef %content;
 2527: 	if ($env{'form.forwid'}) {
 2528: 	    my $msgid=$env{'form.forwid'};
 2529: 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 2530: 	    %content=&Apache::lonmsg::unpackagemsg($message{$msgid},1,1);
 2531: 	    &statuschange($msgid,'forwarded',$folder);
 2532:             if ($content{'attachmenturl'} ne '') {
 2533:                 $attachmenturl = $content{'attachmenturl'};
 2534:             }
 2535: 	    $env{'form.message'} .= "\n\n-- Forwarded message --\n\n".
 2536: 		                    $content{'message'};
 2537: 	}
 2538: 	if ($env{'form.replyid'}) {
 2539: 	    my $msgid=$env{'form.replyid'};
 2540: 	    my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 2541: 	    %content=&Apache::lonmsg::unpackagemsg($message{$msgid},1);
 2542: 	    &statuschange($msgid,'replied',$folder);
 2543: 	}
 2544: 
 2545: 	my @to =
 2546: 	    &Apache::loncommon::get_env_multiple('form.selectedusers_forminput');
 2547: 	my $mode = $env{'form.sendmode'};
 2548: 
 2549: 	my (%toaddr,$cc,$bcc);
 2550: 	if (@to) {
 2551: 	    foreach my $dest (@to) {
 2552: 		my ($user,$domain) = split(/:/, $dest);
 2553: 		if (($user ne '') && ($domain ne '')) {
 2554: 		    my $address = $user.":".$domain; # How the code below expects it.
 2555: 		    $toaddr{$address} = '';
 2556: 		}
 2557: 	    }
 2558: 	}
 2559: 
 2560: 	if ($env{'form.sendmode'} eq 'group') {
 2561: 	     foreach my $address (keys(%env)) {
 2562: 	 	if ($address=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
 2563: 	 	    $toaddr{$1}='';
 2564: 	 	}
 2565: 	    }
 2566: 	} elsif ($env{'form.sendmode'} eq 'upload') {
 2567:             $nosentstore = 0;
 2568: 	    foreach my $line (split(/[\n\r\f]+/,$env{'form.upfile'})) {
 2569:                 my ($rec,$txt) = ($line =~ /^([^:]+:[^:]+):(.*)$/);
 2570: 		if ($txt) {
 2571:                     $rec =~ s/^\s+//;
 2572:                     $rec =~ s/\s+$//;
 2573: 		    $toaddr{$rec}.=$txt."\n";
 2574: 		}
 2575: 	    }
 2576: 	} else {
 2577: 	    if (($env{'form.recuname'} ne '') && ($env{'form.recdomain'} ne '')) {
 2578: 		$toaddr{$env{'form.recuname'}.':'.$env{'form.recdomain'}}='';
 2579:                 $cc->{$env{'form.recuname'}.':'.$env{'form.recdomain'}}='';
 2580: 	    }
 2581: 	}
 2582: 	if ($env{'form.additionalrec_cc'}) {
 2583: 	    foreach my $rec (split(/\s*,\s*/,$env{'form.additionalrec_cc'})) {
 2584: 		my ($auname,$audom)=split(/:/,$rec);
 2585: 		if (($auname ne "") && ($audom ne "")) {
 2586:                     $toaddr{$auname.':'.$audom}='';
 2587: 		    $cc->{$auname.':'.$audom}='';
 2588: 		}
 2589: 	    }
 2590: 	}
 2591:         if ($env{'form.additionalrec_bcc'}) {
 2592:             foreach my $rec (split(/\s*,\s*/,$env{'form.additionalrec_bcc'})) {
 2593:                 my ($auname,$audom)=split(/:/,$rec);
 2594:                 if (($auname ne "") && ($audom ne "")) {
 2595:                     $toaddr{$auname.':'.$audom}='';
 2596:                     $bcc->{$auname.':'.$audom}='';
 2597:                 }
 2598:             }
 2599:         }
 2600:         if ($env{'form.replying_cc'}) {
 2601:             my @ccreplies = 
 2602:                 &Apache::loncommon::get_env_multiple('form.replying_cc');
 2603:             foreach my $rec (@ccreplies) {
 2604:                 my ($auname,$audom)=split(/:/,$rec);
 2605:                 if (($auname ne "") && ($audom ne "")) {
 2606:                     $toaddr{$auname.':'.$audom}='';
 2607:                     $cc->{$auname.':'.$audom}='';
 2608:                 }
 2609:             }
 2610:         }
 2611:         my $savemsg;
 2612:         my $msgtype;
 2613:         my %sentmessage;
 2614:         my $msgsubj=&Apache::lonfeedback::clear_out_html($env{'form.subject'},
 2615: 							 undef,1);
 2616:         if ((($env{'form.critmsg'}) || ($env{'form.sendbck'})) &&
 2617:             (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 2618: 	     || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 2619: 					 '/'.$env{'request.course.sec'})
 2620: 	     )) {
 2621:             $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'},1);
 2622:             $msgtype = 'critical';
 2623:         } else {
 2624:             $savemsg=&Apache::lonfeedback::clear_out_html($env{'form.message'});
 2625:         }
 2626:         my %reciphash = (
 2627:                            cc => $cc,
 2628:                            bcc => $bcc,
 2629:                         ); 
 2630:         my ($recipid,$recipstatus) = 
 2631:             &Apache::lonmsg::store_recipients($msgsubj,$env{'user.name'},
 2632:                                        $env{'user.domain'},\%reciphash);
 2633:         if ($recipstatus ne 'ok') {
 2634:             &Apache::lonnet::logthis('Failed to store Bcc and Cc recipients for '.$env{'user.name'}.':'.$env{'user.domain'});
 2635:         }
 2636:         if ($env{'form.attachment'}) {
 2637:             if (length($env{'form.attachment'})<131072) {
 2638:                 $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,'feedback/'.$now);
 2639:             } else {
 2640:                 $r->print('<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>');
 2641:             }
 2642:         } elsif ($env{'form.multiforward'}) {
 2643:             if ($env{'form.attachmenturl'} ne '') {
 2644:                 $attachmenturl = $env{'form.attachmenturl'};
 2645:             }
 2646:         }
 2647:         my @recusers;
 2648:         my @recudoms;
 2649: 	foreach my $address (sort(keys(%toaddr))) {
 2650: 	    my ($recuname,$recdomain)=split(/\:/,$address);
 2651:             my $msgtxt = $savemsg;
 2652:             if ($toaddr{$address}) {
 2653: 	        $msgtxt.='<hr />'.$toaddr{$address};
 2654:             }
 2655: 	    my @thismsg;
 2656: 	    if ($msgtype eq 'critical') {
 2657: 		$r->print(&mt('Sending critical message').' '.
 2658:                               $recuname.':'.$recdomain.': ');
 2659: 		@thismsg=
 2660: 		    &Apache::lonmsg::user_crit_msg($recuname,$recdomain,
 2661: 						   $msgsubj,$msgtxt,
 2662: 						   $env{'form.sendbck'},
 2663: 						   $env{'form.permanent'},
 2664: 						   \$sentmessage{$address},
 2665:                                                    $nosentstore,$recipid);
 2666: 	    } else {
 2667: 		$r->print(&mt('Sending').' '.$recuname.':'.$recdomain.': ');
 2668: 		@thismsg=
 2669: 		    &Apache::lonmsg::user_normal_msg($recuname,$recdomain,
 2670: 						     $msgsubj,$msgtxt,
 2671: 						     $content{'citation'},
 2672: 						     undef,$attachmenturl,
 2673: 						     $env{'form.permanent'},
 2674: 						     \$sentmessage{$address},
 2675:                                                      undef,undef,undef,
 2676:                                                      $nosentstore,$recipid);
 2677:             }
 2678: 	    $msg_status{$recuname.':'.$recdomain}=join(' ',@thismsg);
 2679: 	    if ($msg_status{$recuname.':'.$recdomain} =~ /(ok|con_delayed)/) {  
 2680: 	        $numsent++;
 2681:                 push(@recusers,$recuname);
 2682:                 push(@recudoms,$recdomain);
 2683: 	    }
 2684: 	    $sendstatus.=' '.join(' ',@thismsg);
 2685: 	}
 2686:         my $subj_prefix;
 2687:         if ($numsent > 0) {
 2688:             if (($env{'request.course.id'}) && 
 2689:                 (($env{'form.sendmode'} eq 'group') ||
 2690:                  ($env{'form.courserecord'}) ||
 2691:                  ($msgtype eq 'critical'))) {
 2692:                 if ($msgtype eq 'critical') {
 2693:                     $subj_prefix = 'Critical.';
 2694:                 } elsif ($env{'form.sendmode'} eq 'group') {
 2695:                     $subj_prefix = 'Broadcast.';
 2696:                 } else {
 2697:                     $subj_prefix = 'Archive';
 2698:                 }
 2699:                 my ($specialmsgid,$specialresult);
 2700:                 my $course_str = &escape('['.$cnum.':'.$cdom.']');
 2701: 
 2702:                 $specialresult = 
 2703:                     &Apache::lonmsg::user_normal_msg_raw($cnum,$cdom,
 2704:                         $subj_prefix.' '.$course_str,$savemsg,undef,undef,
 2705:                         $attachmenturl,undef,undef,\$specialmsgid,undef,undef,undef,
 2706:                         undef,undef,1);
 2707:                 $specialmsgid = &unescape($specialmsgid);
 2708:                 if ($specialresult eq 'ok') {
 2709:                     my ($stamp,$crssubj,$msgname,$msgdom,$msgcount,$context,$pid) =
 2710: 		        split(/\:/,&unescape($specialmsgid));
 2711: 
 2712:                     foreach my $recipient (sort(keys(%toaddr))) {
 2713:                         if ($msg_status{$recipient} =~ /\s*(ok|con_delayed)\s*/) {
 2714:                             my $usersubj = $subj_prefix.'['.$recipient.']';
 2715:                             my $usermsgid = 
 2716: 			        &Apache::lonmsg::buildmsgid($stamp,$usersubj,
 2717: 							    $msgname,$msgdom,
 2718: 							    $msgcount,$context,
 2719: 							    $pid);
 2720:                             &Apache::lonmsg::user_normal_msg_raw($cnum,$cdom,
 2721:                                 $subj_prefix.' ['.$recipient.']',$msgsubj,
 2722:                                 undef,undef,$attachmenturl,undef,$usermsgid,undef,
 2723:                                 undef,$specialmsgid,undef,undef,undef,1);
 2724:                         }
 2725:                     }
 2726:                     if (($env{'form.sendmode'} ne 'upload') && (@recusers > 0)) {
 2727:                         &Apache::lonmsg::process_sent_mail($msgsubj,
 2728:                            $subj_prefix,$numsent,$stamp,$msgname,$msgdom,
 2729:                            $msgcount,$context,$pid,$savemsg,\@recusers,
 2730:                            \@recudoms,undef,$attachmenturl);
 2731:                     }
 2732:                 } else {
 2733:                     &Apache::lonnet::logthis('Failed to create record of critical, broadcast or archived message in '.$env{'course.'.$env{'request.course.id'}.'.num'}.' '&mt('at').' '.$env{'course.'.$env{'request.course.id'}.'.domain'}.' - no msgid generated');
 2734:                 }
 2735:             } else {
 2736:                 my $stamp = time;
 2737:                 my $msgcount = &Apache::lonmsg::get_uniq();
 2738:                 my $context = &Apache::lonmsg::get_course_context();
 2739:                 &Apache::lonmsg::process_sent_mail($msgsubj,$subj_prefix,
 2740:                        $numsent,$stamp,$env{'user.name'},
 2741:                        $env{'user.domain'},$msgcount,$context,
 2742:                        $$,$savemsg,\@recusers,\@recudoms,undef,$attachmenturl);
 2743:             }
 2744:         }
 2745:         if (!$env{'form.multiforward'}) { 
 2746:             if ($sendstatus=~/^(\s*(?:ok|con_delayed)\s*)*$/) {
 2747: 	        $r->print('<br /><span class="LC_success">'.&mt('Completed.').
 2748:                           '</span>');
 2749: 	        if ($env{'form.displayedcrit'}) {
 2750: 	            &discrit($r);
 2751:                 }
 2752:                 if ($group ne '') {
 2753:                     $r->print(&groupmail_sent($group,$cdom,$cnum)); 
 2754: 	        } else {
 2755: 	            &Apache::loncommunicate::menu($r);
 2756: 	        }
 2757:             } else {
 2758: 	        $r->print('<p><span class="LC_error">'.&mt('Could not deliver message').'</span> '.
 2759: 		          &mt('Please use the browser "Back" button and correct the recipient addresses ([_1]).',$sendstatus).'</p>');
 2760:             }
 2761:         }
 2762:     }
 2763:     return $sendstatus;
 2764: }
 2765: 
 2766: # ===================================================================== Handler
 2767: 
 2768: sub handler {
 2769:     my $r=shift;
 2770: 
 2771: # ----------------------------------------------------------- Set document type
 2772:     
 2773:     &Apache::loncommon::content_type($r,'text/html');
 2774:     $r->send_http_header;
 2775:     
 2776:     return OK if $r->header_only;
 2777:     
 2778: # --------------------------- Get query string for limited number of parameters
 2779:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 2780:         ['display','replyto','forward','markread','markdel','markunread',
 2781:          'sendreply','compose','sendmail','critical','recname','recdom',
 2782:          'recordftf','sortedby','block','folder','startdis','interdis',
 2783: 	 'showcommentbaseurl','dismode','group','subject','text','ref',
 2784:          'msgstatus']);
 2785:     $sqs='&sortedby='.$env{'form.sortedby'};
 2786: 
 2787: # ------------------------------------------------------ They checked for email
 2788:     unless ($env{'form.block'}) {
 2789:         &Apache::lonnet::put('email_status',{'recnewemail'=>0});
 2790:     }
 2791: 
 2792: # ----------------------------------------------------------------- Breadcrumbs
 2793: 
 2794:     &Apache::lonhtmlcommon::clear_breadcrumbs();
 2795:     &Apache::lonhtmlcommon::add_breadcrumb
 2796:         ({href=>"/adm/communicate",
 2797:           text=>"Communication/Messages",
 2798:           faq=>12,bug=>'Communication Tools',});
 2799: 
 2800: # ------------------------------------------------------------------ Get Folder
 2801: 
 2802:     my $folder=$env{'form.folder'};
 2803:     unless ($folder) { 
 2804: 	$folder=''; 
 2805:     } else {
 2806: 	$sqs.='&folder='.&escape($folder);
 2807:     }
 2808: # ------------------------------------------------------------ Get Display Mode
 2809: 
 2810:     my $dismode=$env{'form.dismode'};
 2811:     unless ($dismode) { 
 2812: 	$dismode=''; 
 2813:     } else {
 2814: 	$sqs.='&amp;dismode='.&escape($dismode);
 2815:     }
 2816: 
 2817: # --------------------------------------------------------------------- Display
 2818:     my $msgstatus = $env{'form.msgstatus'};
 2819:     $startdis=$env{'form.startdis'};
 2820:     if ($startdis ne '') {
 2821:         $startdis--;
 2822:     }
 2823:     unless ($startdis) { $startdis=0; }
 2824: 
 2825:     if ($env{'form.firstview'}) {
 2826: 	$startdis=0;
 2827:     }
 2828:     if ($env{'form.lastview'}) {
 2829: 	$startdis=-1;
 2830:     }
 2831:     if ($env{'form.prevview'}) {
 2832: 	$startdis--;
 2833:     }
 2834:     if ($env{'form.nextview'}) {
 2835: 	$startdis++;
 2836:     }
 2837:     my $postedstartdis=$startdis+1;
 2838:     $sqs.='&startdis='.$postedstartdis;
 2839: 
 2840: # --------------------------------------------------------------- Render Output
 2841: 
 2842:     if ($env{'form.display'}) {
 2843: 	&displaymessage($r,$env{'form.display'},$folder,$msgstatus);
 2844:     } elsif ($env{'form.replyto'}) {
 2845: 	&compout($r,'',$env{'form.replyto'},undef,undef,$folder,$dismode);
 2846:     } elsif ($env{'form.confirm'}) {
 2847: 	&printheader($r,'','Confirmed Receipt');
 2848: 	my $replying = 0;
 2849: 	foreach my $envkey (keys(%env)) {
 2850: 	    if ($envkey=~/^form\.(rep)?rec\_(.*)$/) {
 2851:                 my $repchk = $1;
 2852:        		my $msgid = $2;
 2853: 		$r->print('<b>'.&mt('Confirming Receipt').':</b> ');
 2854: 		my $result = &Apache::lonmsg::user_crit_received($msgid);
 2855:                 if ($result =~ /trans:\s+ok/) {
 2856:                     &statuschange($msgid,'read');
 2857:                 }
 2858:                 $r->print($result.'<br />');
 2859:                 if ($repchk eq 'rep') {
 2860: 		    &compout($r,'','','',$msgid);
 2861: 		    $replying = 1;
 2862:                 }
 2863: 	    }
 2864: 	}
 2865: 	if (!$replying) {
 2866: 	    &discrit($r);
 2867: 	}
 2868:     } elsif ($env{'form.critical'}) {
 2869: 	&printheader($r,'','Displaying Critical Messages');
 2870: 	&discrit($r);
 2871:     } elsif ($env{'form.forward'}) {
 2872: 	&compout($r,$env{'form.forward'},undef,undef,undef,$folder);
 2873:     } elsif ($env{'form.markdel'}) {
 2874: 	&printheader($r,'','Deleted Message');
 2875: 	my ($result,$msg) = 
 2876: 	    &statuschange($env{'form.markdel'},'deleted',$folder);
 2877: 	if (!$result) {
 2878: 	    $r->print('<p class="LC_error">'.
 2879: 		      &mt('Failed to delete the message.').'</p>'.
 2880: 		      '<p class="LC_error">'.$msg."</p>\n");
 2881: 	}
 2882: 	&Apache::loncommunicate::menu($r);
 2883: 	&disall($r,($folder?$folder:$dismode),$msgstatus);
 2884:     } elsif ($env{'form.markedaction'} eq 'markedforward') {
 2885:         my $total = 0;
 2886:         my @to_forward = &Apache::loncommon::get_env_multiple('form.delmark');
 2887:         foreach my $msgid (@to_forward) {
 2888:             &statuschange(&unescape($msgid),'forwarded',$folder);
 2889:             $total ++;
 2890:         }
 2891:         if ($total > 0) {
 2892:             &compout($r,undef,undef,undef,undef,$folder,$dismode,$total);
 2893:         }
 2894:     } elsif ($env{'form.markedaction'} eq 'markedread') {
 2895:         my $total = 0;
 2896:         my @to_markread = &Apache::loncommon::get_env_multiple('form.delmark');
 2897:         foreach my $msgid (@to_markread) {
 2898:             &statuschange(&unescape($msgid),'read',$folder);
 2899:             $total ++;
 2900:         }
 2901:         &printheader($r,'','Marked Messages Read');
 2902:         $r->print(&mt('Marked [_1] message(s) read',$total).'<p>');
 2903:         &Apache::loncommunicate::menu($r);
 2904:         &disall($r,($folder?$folder:$dismode),$msgstatus);
 2905:     } elsif ($env{'form.markedaction'} eq 'markedunread') {
 2906:         my $total = 0;
 2907:         my @to_markunread = &Apache::loncommon::get_env_multiple('form.delmark');
 2908:         foreach my $msgid (@to_markunread) {
 2909:             &statuschange(&unescape($msgid),'new',$folder);
 2910:             $total ++;
 2911:         }
 2912:         &printheader($r,'','Marked Messages Unread');
 2913:         $r->print(&mt('Marked [_1] message(s) unread',$total).'<p>');
 2914:         &Apache::loncommunicate::menu($r);
 2915:         &disall($r,($folder?$folder:$dismode),$msgstatus);
 2916:     } elsif ($env{'form.markedaction'} eq 'markedmove') {
 2917:         my $destfolder = $env{'form.movetofolder'};
 2918:         my %gotfolders = &Apache::lonmsg::get_user_folders();
 2919:         &printheader($r,'','Moved Messages');
 2920:         if (!defined($gotfolders{$destfolder})) {
 2921:             $r->print(&mt('Destination folder [_1] is not a valid folder',
 2922:                       $destfolder));
 2923:         } else {
 2924: 	    my ($total,$failed,@failed_msg)=(0,0);
 2925:             my @to_move = &Apache::loncommon::get_env_multiple('form.delmark');
 2926:             foreach my $msgid (@to_move) {
 2927: 	        my ($result,$msg) = &movemsg(&unescape($msgid),$folder,
 2928: 			                     $env{'form.movetofolder'});
 2929: 	        if ($result) {
 2930: 		    $total++;
 2931: 	        } else {
 2932: 		    $failed++;
 2933: 		    push(@failed_msg,$msg);
 2934: 	        }
 2935: 	    }
 2936: 	    if ($failed) {
 2937: 	        $r->print('<p class="LC_error">
 2938:                           '.&mt('Failed to move [_1] message(s)',$failed).
 2939: 		      '</p>');
 2940: 	        $r->print('<p class="LC_error">'.
 2941: 	   	          join("</p>\n<p class=\"LC_error\">",@failed_msg).
 2942: 		          "</p>\n");
 2943: 	    }
 2944: 	    $r->print(&mt('Moved [_1] message(s)',$total).'<p>');
 2945:         }
 2946: 	&Apache::loncommunicate::menu($r);
 2947: 	&disall($r,($folder?$folder:$dismode),$msgstatus);
 2948:     } elsif ($env{'form.markedaction'} eq 'markeddel') {
 2949: 	my ($total,$failed,@failed_msg)=(0,0);
 2950:         my @to_delete = &Apache::loncommon::get_env_multiple('form.delmark');
 2951:         foreach my $msgid (@to_delete) {
 2952: 	    my ($result,$msg) = &statuschange(&unescape($msgid),'deleted', 
 2953: 				              $folder);
 2954: 	    if ($result) {
 2955: 	        $total++;
 2956: 	    } else {
 2957: 	        $failed++;
 2958: 		push(@failed_msg,$msg);
 2959: 	    }
 2960: 	}
 2961: 	&printheader($r,'','Deleted Messages');
 2962: 	if ($failed) {
 2963: 	    $r->print('<p class="LC_error">
 2964:                           '.&mt('Failed to delete [_1] message(s)',$failed).
 2965: 		      '</p>');
 2966: 	    $r->print('<p class="LC_error">'.
 2967: 		      join("</p>\n<p class=\"LC_error\">",@failed_msg).
 2968: 		      "</p>\n");
 2969: 	}
 2970: 	$r->print(&mt('Deleted [_1] message(s)',$total).'<p>');
 2971: 	&Apache::loncommunicate::menu($r);
 2972: 	&disall($r,($folder?$folder:$dismode),$msgstatus);
 2973:     } elsif ($env{'form.markunread'}) {
 2974: 	&printheader($r,'','Marked Message as Unread');
 2975: 	&statuschange($env{'form.markunread'},'new');
 2976: 	&Apache::loncommunicate::menu($r);
 2977: 	&disall($r,($folder?$folder:$dismode),$msgstatus);
 2978:     } elsif ($env{'form.compose'}) {
 2979: 	&compout($r,'','',$env{'form.compose'});
 2980:     } elsif ($env{'form.recordftf'}) {
 2981: 	&facetoface($r,$env{'form.recordftf'});
 2982:     } elsif ($env{'form.block'}) {
 2983:         &examblock($r,$env{'form.block'});
 2984:     } elsif ($env{'form.sendmail'}) {
 2985:         if ($env{'form.multiforward'}) {
 2986:             &printheader($r,'','Messages being sent.');
 2987:             my $fixed_subj = $env{'form.subject'};
 2988:             my $suffix=&Apache::lonmsg::foldersuffix($folder);
 2989:             my (%sendresult,%forwardok,%forwardfail,$fwdcount);
 2990:             my @to_forward = &Apache::loncommon::get_env_multiple('form.delmark');
 2991:             foreach my $item (@to_forward) {
 2992:                 my $msgid=&unescape($item);
 2993:                 my %message=&Apache::lonnet::get('nohist_email'.$suffix,[$msgid]);
 2994:                 my %content=&Apache::lonmsg::unpackagemsg($message{$msgid},1,1);
 2995:                 if ($env{'form.showorigsubj'}) {
 2996:                     $env{'form.subject'} = $fixed_subj.$content{'subject'};
 2997:                 } else {
 2998:                     $env{'form.subject'} = '';
 2999:                 }
 3000:                 my $uname = $content{'sendername'};
 3001:                 my $udom = $content{'senderdomain'};
 3002:                 &statuschange($msgid,'forwarded',$folder);
 3003:                 if ($env{'form.showorigsender'}) {
 3004:                     $env{'form.message'} = $env{'form.msgheader'}.' '.
 3005:                         &Apache::loncommon::plainname($uname,$udom).' ('.
 3006:                                            $uname.':'.$udom.')';
 3007:                 }
 3008:                 $env{'form.message'}.="\n\n-- Forwarded message --\n\n".
 3009:                                       $content{'message'};
 3010:                 $env{'form.attachmenturl'} = $content{'attachmenturl'};
 3011:                 $env{'form.multiforwid'} = $item;
 3012:                 $fwdcount ++;
 3013:                 $r->print($fwdcount.': '); 
 3014:                 $sendresult{$msgid} = &sendoffmail($r,$folder);
 3015:                 $r->print('<br />');
 3016:             }
 3017:             foreach my $key (keys(%sendresult)) {
 3018:                 if ($sendresult{$key} =~/^(\s*(?:ok|con_delayed)\s*)*$/) {
 3019:                     $forwardok{$key} = $sendresult{$key};
 3020:                 } else {
 3021:                     $forwardfail{$key} = $sendresult{$key}; 
 3022:                 }
 3023:             }
 3024:             if (keys(%forwardok) > 0) {
 3025:                 my $count = keys(%forwardok);
 3026:                 $r->print('<br /><span class="LC_success">'.
 3027:                           &mt('[quant,_1,message] forwarded.',$count).
 3028:                           '</span>');
 3029:             }
 3030:             if (keys(%forwardfail) > 0) {
 3031:                 my $count = keys(%forwardfail);
 3032:                 $r->print('<p><span class="LC_error">'.
 3033:                           &mt('Could not forward [quant,_1,message].',$count).
 3034:                           '</span> ');
 3035:                 foreach my $key (keys(%forwardfail)) {
 3036:                     $r->print(&mt('Could not deliver forwarded message.').'</span> '.
 3037:                               &mt('The recipient addresses may need to be corrected').' ('.$forwardfail{$key}.').<br /><br />');
 3038:                 }
 3039:             }
 3040:             &Apache::loncommunicate::menu($r);
 3041:         } else {
 3042: 	    &sendoffmail($r,$folder);
 3043:         }
 3044: 	if ($env{'form.storebasecomment'}) {
 3045: 	    &storecomment($r);
 3046:         }
 3047: 	if (($env{'form.rsspost'}) && ($env{'request.course.id'})) {
 3048: 	        &Apache::lonrss::addentry($env{'course.'.$env{'request.course.id'}.'.num'},
 3049: 				      $env{'course.'.$env{'request.course.id'}.'.domain'},
 3050: 				      'Course_Announcements',
 3051: 				      $env{'form.subject'},
 3052: 				      $env{'form.message'},'/adm/communicate','public');
 3053: 	}
 3054: 	if ((!exists($env{'form.group'})) && (!$env{'form.displayedcrit'})) {
 3055: 	    &disall($r,($folder?$folder:$dismode),$msgstatus);
 3056: 	}
 3057:     } elsif ($env{'form.newfolder'}) {
 3058: 	&printheader($r,'','New Folder');
 3059:         my $showfolder = $env{'form.newfolder'};
 3060: 	my ($makeresult,$warning) = &makefolder($env{'form.newfolder'});
 3061:         if ($makeresult eq 'ok') {
 3062:             $r->print(&mt('Mail folder "[_1]" created.',$showfolder).'<br />');
 3063:         } else {
 3064:             $r->print(&mt('Creation failed.').' '.$makeresult.'<br />'.
 3065:                       $warning);
 3066:             $showfolder = $folder;
 3067:         }
 3068:         &Apache::loncommunicate::menu($r);
 3069: 	&disall($r,$showfolder,$msgstatus);
 3070:     } elsif ($env{'form.showcommentbaseurl'}) {
 3071: 	&storedcommentlisting($r);
 3072:     } elsif ($env{'form.folderaction'} eq 'delete') {
 3073:         &printheader($r,'','Deleted Folder');
 3074:         my $showfolder = '';
 3075:         my $delresult = &deletefolder($folder);
 3076:         if ($delresult eq 'ok') {
 3077:             $r->print(&mt('Mail folder "[_1]" deleted.',$folder).'<br />');
 3078:             $env{'form.folder'} = '';
 3079:         } else {
 3080:             $r->print(&mt('Deletion failed.').' '.$delresult.'<br />');
 3081:             $showfolder = $folder;
 3082:         }
 3083:         &Apache::loncommunicate::menu($r);
 3084:         &disall($r,$showfolder,$msgstatus);
 3085:     } elsif ($env{'form.folderaction'} eq 'rename') {
 3086:         &printheader($r,'','Renamed Folder');
 3087:         my $showfolder = $env{'form.renamed'};
 3088:         my $renresult = &renamefolder($folder);
 3089:         if ($renresult eq 'ok') {
 3090:             $r->print(&mt('Mail folder "[_1]" renamed "[_2]".',$folder,$showfolder).'<br />');
 3091:         } else {
 3092:             $r->print(&mt('Renaming failed.').' '.$renresult.'<br />');
 3093:             $showfolder = $folder;
 3094:         }
 3095:         &Apache::loncommunicate::menu($r);
 3096:         &disall($r,$showfolder,$msgstatus);
 3097:     } else {
 3098: 	&printheader($r,'','Display All Messages');
 3099: 	&Apache::loncommunicate::menu($r);
 3100: 	&disall($r,($folder?$folder:$dismode),$msgstatus);
 3101:     }
 3102:     $r->print(&Apache::loncommon::end_page());
 3103:     return OK;
 3104: }
 3105: # ================================================= Main program, reset counter
 3106: 
 3107: =pod
 3108: 
 3109: =cut
 3110: 
 3111: 1; 
 3112: 
 3113: __END__
 3114: 

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