Annotation of loncom/interface/lonmsg.pm, revision 1.222.2.1

1.1       www         1: # The LearningOnline Network with CAPA
1.26      albertel    2: # Routines for messaging
                      3: #
1.222.2.1! raeburn     4: # $Id: lonmsg.pm,v 1.222 2009/02/05 00:45:29 raeburn Exp $
1.26      albertel    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/
1.1       www        27: #
1.75      www        28: 
1.1       www        29: package Apache::lonmsg;
                     30: 
1.199     raeburn    31: =pod
                     32: 
                     33: =head1 NAME
                     34: 
                     35: Apache::lonmsg: supports internal messaging
                     36: 
                     37: =head1 SYNOPSIS
                     38: 
                     39: lonmsg provides routines for sending messages.
                     40: 
                     41: Right now, this document will cover just how to send a message, since
                     42: it is likely you will not need to programmatically read messages,
                     43: since lonmsg already implements that functionality.
                     44: 
                     45: The routines used to package messages and unpackage messages are not
                     46: only used by lonmsg when creating/extracting messages for LON-CAPA's
                     47: internal messaging system, but also by lonnotify.pm which is available
                     48: for use by Domain Coordinators to broadcast standard e-mail to specified
                     49: users in their domain.  The XML packaging used in the two cases is very
                     50: similar.  The differences are the use of <recuser>$uname</recuser> and
                     51: <recdomain>$udom</recdomain> in stored internal messages, compared
                     52: with <recipient username="$uname:$udom">$email</recipient> in stored
                     53: Domain Coordinator e-mail for the storage of information about
                     54: recipients of the message/e-mail.
                     55: 
1.215     jms        56: =head1 SUBROUTINES
1.199     raeburn    57: 
1.215     jms        58: =over
                     59: 
                     60: =pod
                     61: 
                     62: =item packagemsg()
                     63: 
                     64: Package
                     65: 
                     66: =item get_course_context()
                     67: 
                     68: =item unpackagemsg()
                     69: 
                     70: Unpack message into a hash
                     71: 
                     72: =item buildmsgid()
                     73: 
                     74: Get info out of msgid
                     75: 
                     76: =item unpackmsgid()
                     77: 
                     78: =item sendemail()
                     79: 
                     80: =item sendnotification()
                     81: 
                     82: Send notification emails
                     83: 
                     84: =item newmail()
                     85: 
                     86: Check for email
                     87: 
                     88: =item author_res_msg()
                     89: 
                     90: Automated message to the author of a resource
                     91: 
                     92: =item * B<author_res_msg($filename, $message)>: Sends message $message to the owner
                     93:     of the resource with the URI $filename.
                     94: 
                     95: =item retrieve_author_res_msg()
                     96: 
                     97: Retrieve author resource messages
                     98: 
                     99: =item del_url_author_res_msg()
                    100: 
                    101: Delete all author messages related to one URL
                    102: 
                    103: =item clear_author_res_msg()
                    104: 
                    105: Clear out all author messages in URL path
                    106: 
                    107: =item all_url_author_res_msg()
                    108: 
                    109: Return hash with URLs for which there is a resource message
                    110: 
                    111: =item store_instructor_comment()
                    112: 
                    113: Add a comment to the User Notes screen
                    114: 
                    115: =item user_crit_msg_raw()
                    116: 
                    117: Critical message to a user
                    118: 
                    119: =item user_crit_msg()
                    120: 
                    121: New routine that respects "forward" and calls old routine
                    122: 
                    123: =item * B<user_crit_msg($user, $domain, $subject, $message, $sendback, $nosentstore,$recipid,$attachmenturl)>: 
                    124:     Sends a critical message $message to the $user at $domain.  If $sendback
                    125:     is true,  a receipt will be sent to the current user when $user receives 
                    126:     the message.
                    127: 
                    128:     Additionally it will check if the user has a Forwarding address
                    129:     set, and send the message to that address instead
                    130: 
                    131:     returns 
                    132:       - in array context a list of results for each message that was sent
                    133:       - in scalar context a space seperated list of results for each 
                    134:            message sent
                    135: 
                    136: 
                    137: =item user_crit_received()
                    138: 
                    139: Critical message received
                    140: 
                    141: =item user_normal_msg_raw()
                    142: 
                    143: Normal communication
                    144: 
                    145: =item user_normal_msg()
                    146: 
                    147: New routine that respects "forward" and calls old routine
                    148: 
                    149: =item * B<user_normal_msg($user, $domain, $subject, $message, $citation,
                    150:        $baseurl, $attachmenturl, $toperm, $sentmessage, $symb, $restitle,
                    151:        $error,$nosentstore,$recipid)>:
                    152:  Sends a message to the  $user at $domain, with subject $subject and message $message.
                    153: 
                    154:     Additionally it will check if the user has a Forwarding address
                    155:     set, and send the message to that address instead
                    156: 
                    157:     returns
                    158:       - in array context a list of results for each message that was sent
                    159:       - in scalar context a space seperated list of results for each
                    160:            message sent
                    161: 
                    162: =item store_sent_mail()
                    163: 
                    164: =item store_recipients()
                    165: 
                    166: =item foldersuffix()
                    167: 
                    168: =item get_user_folders()
                    169: 
                    170: User-defined folders 
                    171: 
                    172: =item secapply()
                    173: 
                    174: =item B<decide_receiver($feedurl,$author,$question,$course,$policy,$defaultflag)>:
                    175: 
                    176: Arguments
                    177:   $feedurl - /res/ url of resource (only need if $author is true)
                    178:   $author,$question,$course,$policy - all true/false parameters
                    179:     if true will attempt to find the addresses of user that should receive
                    180:     this type of feedback (author - feedback to author of resource $feedurl,
                    181:     $question 'Resource Content Questions', $course 'Course Content Question',
                    182:     $policy 'Course Policy')
                    183:     (Additionally it also checks $env for whether the corresponding form.<name>
                    184:     element exists, for ease of use in a html response context)
                    185:    
                    186:   $defaultflag - (internal should be left blank) if true gather addresses 
                    187:                  that aren't for a section even if I have a section
                    188:                  (used for reccursion internally, first we look for
                    189:                  addresses for our specific section then we recurse
                    190:                  and look for non section addresses)
                    191: 
                    192: Returns
                    193:   $typestyle - string of html text, describing what addresses were found
                    194:   %to - a hash, which keys are addresses of users to send messages to
                    195:         the keys will look like   name:domain
                    196: 
                    197: =back
1.199     raeburn   198: 
                    199: =cut
                    200: 
1.1       www       201: use strict;
1.140     albertel  202: use Apache::lonnet;
1.47      albertel  203: use HTML::TokeParser();
1.180     albertel  204: use Apache::lonlocal;
1.53      www       205: use Mail::Send;
1.222.2.1! raeburn   206: use HTML::Entities;
        !           207: use Encode;
1.187     albertel  208: use LONCAPA qw(:DEFAULT :match);
1.180     albertel  209: 
                    210: {
                    211:     my $uniq;
                    212:     sub get_uniq {
                    213: 	$uniq++;
                    214: 	return $uniq;
                    215:     }
                    216: }
1.65      www       217: 
1.215     jms       218: 
1.1       www       219: 
1.3       www       220: sub packagemsg {
1.108     www       221:     my ($subject,$message,$citation,$baseurl,$attachmenturl,
1.202     raeburn   222: 	$recuser,$recdomain,$msgid,$type,$crsmsgid,$symb,$error,$recipid)=@_;
1.96      albertel  223:     $message =&HTML::Entities::encode($message,'<>&"');
                    224:     $citation=&HTML::Entities::encode($citation,'<>&"');
                    225:     $subject =&HTML::Entities::encode($subject,'<>&"');
1.49      albertel  226:     #remove machine specification
1.218     raeburn   227:     $baseurl =~ s|^https?://[^/]+/|/|;
1.96      albertel  228:     $baseurl =&HTML::Entities::encode($baseurl,'<>&"');
1.51      www       229:     #remove machine specification
1.218     raeburn   230:     $attachmenturl =~ s|^https?://[^/]+/|/|;
1.96      albertel  231:     $attachmenturl =&HTML::Entities::encode($attachmenturl,'<>&"');
1.201     raeburn   232:     my $course_context = &get_course_context();
1.2       www       233:     my $now=time;
1.180     albertel  234:     my $msgcount = &get_uniq();
1.156     raeburn   235:     unless(defined($msgid)) {
1.159     raeburn   236:         $msgid = &buildmsgid($now,$subject,$env{'user.name'},$env{'user.domain'},
1.191     raeburn   237:                            $msgcount,$course_context,$symb,$error,$$);
1.156     raeburn   238:     }
1.174     raeburn   239:     my $result = '<sendername>'.$env{'user.name'}.'</sendername>'.
1.140     albertel  240:            '<senderdomain>'.$env{'user.domain'}.'</senderdomain>'.
1.1       www       241:            '<subject>'.$subject.'</subject>'.
1.174     raeburn   242:            '<time>'.&Apache::lonlocal::locallocaltime($now).'</time>';
                    243:     if (defined($crsmsgid)) {
                    244:         $result.= '<courseid>'.$course_context.'</courseid>'.
                    245:                   '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
                    246:                   '<msgid>'.$msgid.'</msgid>'.
                    247:                   '<coursemsgid>'.$crsmsgid.'</coursemsgid>'.
                    248:                   '<message>'.$message.'</message>';
                    249:         return ($msgid,$result);
                    250:     }
                    251:     $result .= '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
1.1       www       252:            '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
                    253: 	   '<client>'.$ENV{'REMOTE_ADDR'}.'</client>'.
1.140     albertel  254: 	   '<browsertype>'.$env{'browser.type'}.'</browsertype>'.
                    255: 	   '<browseros>'.$env{'browser.os'}.'</browseros>'.
                    256: 	   '<browserversion>'.$env{'browser.version'}.'</browserversion>'.
                    257:            '<browsermathml>'.$env{'browser.mathml'}.'</browsermathml>'.
1.1       www       258: 	   '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
1.158     raeburn   259: 	   '<courseid>'.$course_context.'</courseid>'.
1.140     albertel  260: 	   '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
                    261: 	   '<role>'.$env{'request.role'}.'</role>'.
                    262: 	   '<resource>'.$env{'request.filename'}.'</resource>'.
1.156     raeburn   263:            '<msgid>'.$msgid.'</msgid>';
1.214     raeburn   264:     if (defined($env{'form.group'})) {
                    265:         $result .= '<group>'.$env{'form.group'}.'</group>';
                    266:     }
1.156     raeburn   267:     if (ref($recuser) eq 'ARRAY') {
                    268:         for (my $i=0; $i<@{$recuser}; $i++) {
1.162     raeburn   269:             if ($type eq 'dcmail') {
                    270:                 my ($username,$email) = split(/:/,$$recuser[$i]);
1.184     www       271:                 $username = &unescape($username);
                    272:                 $email = &unescape($email);
1.162     raeburn   273:                 $username = &HTML::Entities::encode($username,'<>&"');
                    274:                 $email = &HTML::Entities::encode($email,'<>&"');
                    275:                 $result .= '<recipient username="'.$username.'">'.
                    276:                                             $email.'</recipient>';
                    277:             } else {
                    278:                 $result .= '<recuser>'.$$recuser[$i].'</recuser>'.
                    279:                            '<recdomain>'.$$recdomain[$i].'</recdomain>';
                    280:             }
1.156     raeburn   281:         }
                    282:     } else {
                    283:         $result .= '<recuser>'.$recuser.'</recuser>'.
                    284:                    '<recdomain>'.$recdomain.'</recdomain>';
                    285:     }
                    286:     $result .= '<message>'.$message.'</message>';
1.49      albertel  287:     if (defined($citation)) {
                    288: 	$result.='<citation>'.$citation.'</citation>';
                    289:     }
                    290:     if (defined($baseurl)) {
                    291: 	$result.= '<baseurl>'.$baseurl.'</baseurl>';
                    292:     }
1.51      www       293:     if (defined($attachmenturl)) {
1.52      www       294: 	$result.= '<attachmenturl>'.$attachmenturl.'</attachmenturl>';
1.51      www       295:     }
1.191     raeburn   296:     if (defined($symb)) {
                    297:         $result.= '<symb>'.$symb.'</symb>';
1.201     raeburn   298:         if ($course_context ne '') {
1.191     raeburn   299:             if ($course_context eq $env{'request.course.id'}) {
                    300:                 my $resource_title = &Apache::lonnet::gettitle($symb);
                    301:                 if (defined($resource_title)) {
                    302:                     $result .= '<resource_title>'.$resource_title.'</resource_title>';
                    303:                 }
                    304:             }
                    305:         }
                    306:     }
1.202     raeburn   307:     if (defined($recipid)) {
                    308:         $result.= '<recipid>'.$recipid.'</recipid>';
                    309:     }
1.204     raeburn   310:     if ($env{'form.can_reply'} eq 'N') {
                    311:         $result .= '<noreplies>1</noreplies>';
                    312:     }
                    313:     if ($env{'form.reply_to_addr'}) {
                    314:         my ($replytoname,$replytodom) = split(/:/,$env{'form.reply_to_addr'});
                    315:         if (!($replytoname eq $env{'user.name'} && $replytodom eq $env{'user.domain'})) {
                    316:             if (&Apache::lonnet::homeserver($replytoname,$replytodom) ne 'no_host') {
                    317:                 $result .= '<replytoaddr>'.$env{'form.reply_to_addr'}.'</replytoaddr>';
                    318:             }
                    319:         }
                    320:     }
1.191     raeburn   321:     return ($msgid,$result);
1.1       www       322: }
                    323: 
1.201     raeburn   324: sub get_course_context {
                    325:     my $course_context;
1.212     raeburn   326:     my $msgkey;
1.201     raeburn   327:     if (defined($env{'form.replyid'})) {
1.212     raeburn   328:         $msgkey = $env{'form.replyid'};
                    329:     } elsif (defined($env{'form.forwid'})) {
                    330:         $msgkey = $env{'form.forwid'}
                    331:     } elsif (defined($env{'form.multiforwid'})) {
                    332:         $msgkey = $env{'form.multiforwid'};
                    333:     }
                    334:     if ($msgkey ne '') {
1.201     raeburn   335:         my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid)=
1.212     raeburn   336:                    split(/\:/,&unescape($msgkey));
1.201     raeburn   337:         $course_context = $origcid;
                    338:     }
                    339:     foreach my $key (keys(%env)) {
                    340:         if ($key=~/^form\.(rep)?rec\_(.*)$/) {
                    341:             my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid) =
                    342:                                     split(/\:/,&unescape($2));
                    343:             $course_context = $origcid;
                    344:             last;
                    345:         }
                    346:     }
                    347:     if ($course_context eq '') {
                    348:         $course_context = $env{'request.course.id'};
                    349:     }
                    350:     return $course_context;
                    351: }
                    352: 
1.2       www       353: 
1.3       www       354: sub unpackagemsg {
1.212     raeburn   355:     my ($message,$notoken,$noattachmentlink)=@_;
1.2       www       356:     my %content=();
                    357:     my $parser=HTML::TokeParser->new(\$message);
                    358:     my $token;
                    359:     while ($token=$parser->get_token) {
                    360:        if ($token->[0] eq 'S') {
                    361: 	   my $entry=$token->[1];
                    362:            my $value=$parser->get_text('/'.$entry);
1.156     raeburn   363:            if (($entry eq 'recuser') || ($entry eq 'recdomain')) {
                    364:                push(@{$content{$entry}},$value);
1.162     raeburn   365:            } elsif ($entry eq 'recipient') {
                    366:                my $username = $token->[2]{'username'};
                    367:                $username = &HTML::Entities::decode($username,'<>&"');
                    368:                $content{$entry}{$username} = $value;
1.156     raeburn   369:            } else {
                    370:                $content{$entry}=$value;
                    371:            }
1.2       www       372:        }
                    373:     }
1.168     albertel  374:     if (!exists($content{'recuser'})) { $content{'recuser'} = []; }
1.212     raeburn   375:     if (($content{'attachmenturl'}) && (!$noattachmentlink)) {
1.100     albertel  376:        my ($fname)=($content{'attachmenturl'}=~m|/([^/]+)$|);
1.52      www       377:        if ($notoken) {
1.100     albertel  378: 	   $content{'message'}.='<p>'.&mt('Attachment').': <tt>'.$fname.'</tt>';
1.52      www       379:        } else {
1.99      albertel  380: 	   &Apache::lonnet::allowuploaded('/adm/msg',
                    381: 					  $content{'attachmenturl'});
                    382: 	   $content{'message'}.='<p>'.&mt('Attachment').
                    383: 	       ': <a href="'.$content{'attachmenturl'}.'"><tt>'.
1.100     albertel  384: 	       $fname.'</tt></a>';
1.52      www       385:        }
                    386:     }
1.2       www       387:     return %content;
                    388: }
                    389: 
1.6       www       390: 
1.159     raeburn   391: sub buildmsgid {
1.191     raeburn   392:     my ($now,$subject,$uname,$udom,$msgcount,$course_context,$symb,$error,$pid) = @_;
1.184     www       393:     $subject=&escape($subject);
1.192     raeburn   394:     $symb = &escape($symb);
1.184     www       395:     return(&escape($now.':'.$subject.':'.$uname.':'.
1.191     raeburn   396:            $udom.':'.$msgcount.':'.$course_context.':'.$pid.':'.$symb.':'.$error));
1.159     raeburn   397: }
                    398: 
1.6       www       399: sub unpackmsgid {
1.169     albertel  400:     my ($msgid,$folder,$skipstatus,$status_cache)=@_;
1.184     www       401:     $msgid=&unescape($msgid);
1.167     raeburn   402:     my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$fromcid,
1.191     raeburn   403:         $processid,$symb,$error) = split(/\:/,&unescape($msgid));
1.184     www       404:     $shortsubj = &unescape($shortsubj);
1.182     albertel  405:     $shortsubj = &HTML::Entities::decode($shortsubj);
1.192     raeburn   406:     $symb = &unescape($symb);
1.167     raeburn   407:     if (!defined($processid)) { $fromcid = ''; }
1.164     raeburn   408:     my %status=();
                    409:     unless ($skipstatus) {
1.169     albertel  410: 	if (ref($status_cache)) {
                    411: 	    $status{$msgid} = $status_cache->{$msgid};
                    412: 	} else {
                    413: 	    my $suffix=&foldersuffix($folder);
                    414: 	    %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
                    415: 	}
                    416: 	if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
1.164     raeburn   417:         unless ($status{$msgid}) { $status{$msgid}='new'; }
                    418:     }
1.191     raeburn   419:     return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid},$fromcid,$symb,$error);
1.141     raeburn   420: }
1.6       www       421: 
1.53      www       422: 
                    423: sub sendemail {
1.213     raeburn   424:     my ($to,$subject,$body,$to_uname,$to_udom,$user_lh)=@_;
1.186     www       425:     my $senderaddress='';
1.220     raeburn   426:     my $replytoaddress='';
                    427:     if ($env{'form.can_reply'} eq 'N') {
                    428:         my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
                    429:         my $hostname = &Apache::lonnet::hostname($lonhost);
                    430:         $replytoaddress = 'do-not-reply@'.$hostname;
                    431:     } else {
                    432:         my %senderemails;
                    433:         my $have_sender;
                    434:         if ($env{'form.reply_to_addr'}) {
                    435:             my ($replytoname,$replytodom) = split(/:/,$env{'form.reply_to_addr'});
                    436:             if (!($replytoname eq $env{'user.name'} && $replytodom eq $env{'user.domain'})) {
                    437:                 if (&Apache::lonnet::homeserver($replytoname,$replytodom) ne 'no_host') {
                    438:                     %senderemails = 
                    439:                         &Apache::loncommon::getemails($replytoname,$replytodom);
                    440:                     $have_sender = 1;
                    441:                 }
                    442:             }
                    443:         }
                    444:         if (!$have_sender) {
                    445:             %senderemails=&Apache::loncommon::getemails();
                    446:         }
                    447:         foreach my $type ('permanentemail','critnotification','notification') {
                    448:             if ($senderemails{$type}) {
                    449:                 ($senderaddress) = split(/,/,$senderemails{$type});
                    450:                 last if ($senderaddress);
                    451:             }
                    452:         }
1.186     www       453:     }
1.53      www       454:     $body=
1.217     schafran  455:     "*** ".&mt_user($user_lh,'This is an automatic e-mail generated by the LON-CAPA system.')."\n".
                    456:     "*** ".($senderaddress?&mt_user($user_lh,'You can reply to this e-mail'):&mt_user($user_lh,'Please do not reply to this address.')."\n*** ".
1.220     raeburn   457:     &mt_user($user_lh,'A reply will not be received by the recipient!'))."\n\n".$body;
1.53      www       458:     my $msg = new Mail::Send;
                    459:     $msg->to($to);
                    460:     $msg->subject('[LON-CAPA] '.$subject);
1.220     raeburn   461:     if ($replytoaddress) {
                    462:         $msg->add('Reply-to',$replytoaddress);
                    463:     }
                    464:     if ($senderaddress) {
                    465:         $msg->add('From',$senderaddress);
                    466:     }
1.97      matthew   467:     if (my $fh = $msg->open()) {
1.172     albertel  468: 	print $fh $body;
                    469: 	$fh->close;
1.68      www       470:     }
1.53      www       471: }
                    472: 
                    473: # ==================================================== Send notification emails
                    474: 
                    475: sub sendnotification {
1.194     raeburn   476:     my ($to,$touname,$toudom,$subj,$crit,$text,$msgid)=@_;
1.140     albertel  477:     my $sender=$env{'environment.firstname'}.' '.$env{'environment.lastname'};
1.131     www       478:     unless ($sender=~/\w/) { 
1.208     raeburn   479: 	$sender=$env{'user.name'}.':'.$env{'user.domain'};
1.131     www       480:     }
1.53      www       481:     my $critical=($crit?' critical':'');
1.208     raeburn   482: 
1.131     www       483:     $text=~s/\&lt\;/\</gs;
                    484:     $text=~s/\&gt\;/\>/gs;
1.218     raeburn   485:     my $homeserver = &Apache::lonnet::homeserver($touname,$toudom);
                    486:     my $protocol = $Apache::lonnet::protocol{$homeserver};
                    487:     $protocol = 'http' if ($protocol ne 'https');
                    488:     my $url = $protocol.'://'.&Apache::lonnet::hostname($homeserver).
1.222.2.1! raeburn   489:               '/adm/email?username='.$touname.'&domain='.$toudom.
        !           490:               '&display='.&escape($msgid);
1.194     raeburn   491:     my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,
                    492:         $symb,$error) = &Apache::lonmsg::unpackmsgid($msgid);
1.208     raeburn   493:     my ($coursetext,$body,$bodybegin,$bodysubj,$bodyend);
1.222     raeburn   494:     my $user_lh = &Apache::loncommon::user_lang($touname,$toudom,$fromcid);
1.194     raeburn   495:     if ($fromcid ne '') {
1.213     raeburn   496:         $coursetext = "\n".&mt_user($user_lh,'Course').': ';
1.194     raeburn   497:         if ($env{'course.'.$fromcid.'.description'} ne '') {
                    498:             $coursetext .= $env{'course.'.$fromcid.'.description'};
                    499:         } else {
                    500:             my %coursehash = &Apache::lonnet::coursedescription($fromcid,);
                    501:             if ($coursehash{'description'} ne '') {
                    502:                 $coursetext .= $coursehash{'description'};
                    503:             }
                    504:         }
                    505:         $coursetext .= "\n\n";
                    506:     }
1.206     raeburn   507:     my @recipients = split(/,/,$to);
1.208     raeburn   508:     $bodybegin = $coursetext. 
1.213     raeburn   509:                &mt_user($user_lh,
                    510:                          'You received a'.$critical.' message from [_1] in LON-CAPA.',$sender).' ';
                    511:     $bodysubj = &mt_user($user_lh,'The subject is 
1.53      www       512: 
1.195     raeburn   513:  [_1]
1.53      www       514: 
1.195     raeburn   515: ',$subj)."\n".
1.213     raeburn   516: '=== '.&mt_user($user_lh,'Excerpt')." ============================================================
1.206     raeburn   517: ";
                    518:     $bodyend = "
1.131     www       519: ========================================================================
                    520: 
1.213     raeburn   521: ".&mt_user($user_lh,'Use 
1.53      www       522: 
1.195     raeburn   523:  [_1]
1.53      www       524: 
1.195     raeburn   525: to access the full message.',$url);
1.206     raeburn   526:     my %userenv = &Apache::lonnet::get('environment',['notifywithhtml'],$toudom,$touname);
1.213     raeburn   527:     my $subject = &mt_user($user_lh,"'New' $critical message from ").$sender;
1.208     raeburn   528:  
                    529:     my ($blocked,$blocktext);
                    530:     if (!$crit) {
                    531:         my %setters;
                    532:         my ($startblock,$endblock) = 
                    533:             &Apache::loncommon::blockcheck(\%setters,'com',$touname,$toudom);
                    534:         if ($startblock && $endblock) {
                    535:             $blocked = 1;
1.209     albertel  536:             my $showstart = &Apache::lonlocal::locallocaltime($startblock);
                    537:             my $showend = &Apache::lonlocal::locallocaltime($endblock);
1.213     raeburn   538:             $blocktext = &mt_user($user_lh,'LON-CAPA messages sent to you between [_1] and [_2] will be inaccessible until the end of this time period, because you are a student in a course with an active communications block.',$showstart,$showend);
1.208     raeburn   539:         }
                    540:     }
1.206     raeburn   541:     if ($userenv{'notifywithhtml'} ne '') {
                    542:         my @htmlexcerpt = split(/,/,$userenv{'notifywithhtml'});
1.222.2.1! raeburn   543:         my $htmlfree = &make_htmlfree($text);
1.206     raeburn   544:         foreach my $addr (@recipients) {
1.208     raeburn   545:             if ($blocked) {
                    546:                 $body = $bodybegin."\n".$blocktext."\n".$bodyend;
                    547:             } else {
1.222.2.1! raeburn   548:                 my $sendtext;
1.208     raeburn   549:                 if (!grep/^\Q$addr\E/,@htmlexcerpt) {
1.222.2.1! raeburn   550:                     $sendtext = &htmlfree;
        !           551:                 } else {
        !           552:                     $sendtext = $text;
1.208     raeburn   553:                 }
                    554:                 $body = $bodybegin.$bodysubj.$sendtext.$bodyend;
1.206     raeburn   555:             }
1.213     raeburn   556:             &sendemail($addr,$subject,$body,$touname,$toudom,$user_lh);
1.206     raeburn   557:         }
                    558:     } else {
1.208     raeburn   559:         if ($blocked) {
                    560:             $body = $bodybegin."\n".$blocktext."\n".$bodyend;
                    561:         } else {
1.222.2.1! raeburn   562:             my $htmlfree = &make_htmlfree($text);
        !           563:             $body = $bodybegin.$bodysubj.$htmlfree.$bodyend;
1.208     raeburn   564:         }
1.213     raeburn   565:         &sendemail($to,$subject,$body,$touname,$toudom,$user_lh);
1.206     raeburn   566:     }
1.53      www       567: }
1.215     jms       568: 
1.222.2.1! raeburn   569: sub make_htmlfree {
        !           570:     my ($text) = @_;
        !           571:     $text =~ s/\<\/*[^\>]+\>//gs;
        !           572:     $text = &HTML::Entities::decode($text);
        !           573:     $text = &Encode::encode('utf8',$text);
        !           574:     return $text;
        !           575: }
1.40      www       576: 
                    577: sub newmail {
1.140     albertel  578:     if ((time-$env{'user.mailcheck.time'})>300) {
1.40      www       579:         my %what=&Apache::lonnet::get('email_status',['recnewemail']);
1.211     raeburn   580:         &Apache::lonnet::appenv({'user.mailcheck.time'=>time});
1.40      www       581:         if ($what{'recnewemail'}>0) { return 1; }
                    582:     }
                    583:     return 0;
                    584: }
                    585: 
1.1       www       586: 
1.58      bowersj2  587: 
1.1       www       588: sub author_res_msg {
                    589:     my ($filename,$message)=@_;
1.2       www       590:     unless ($message) { return 'empty'; }
1.1       www       591:     $filename=&Apache::lonnet::declutter($filename);
1.72      www       592:     my ($domain,$author,@dummy)=split(/\//,$filename);
1.1       www       593:     my $homeserver=&Apache::lonnet::homeserver($author,$domain);
                    594:     if ($homeserver ne 'no_host') {
                    595:        my $id=unpack("%32C*",$message);
1.181     albertel  596:        $message .= " <p>This error occurred on machine ".
                    597: 	   $Apache::lonnet::perlvar{'lonHostID'}."</p>";
1.2       www       598:        my $msgid;
1.72      www       599:        ($msgid,$message)=&packagemsg($filename,$message);
1.3       www       600:        return &Apache::lonnet::reply('put:'.$domain.':'.$author.
1.72      www       601:          ':nohist_res_msgs:'.
1.184     www       602:           &escape($filename.'_'.$id).'='.
                    603:           &escape($message),$homeserver);
1.1       www       604:     }
1.2       www       605:     return 'no_host';
1.73      www       606: }
                    607: 
1.215     jms       608: 
1.73      www       609: 
                    610: sub retrieve_author_res_msg {
1.75      www       611:     my $url=shift;
1.73      www       612:     $url=&Apache::lonnet::declutter($url);
1.187     albertel  613:     my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
1.76      www       614:     my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$domain,$author);
1.73      www       615:     my $msgs='';
                    616:     foreach (keys %errormsgs) {
1.80      www       617: 	if ($_=~/^\Q$url\E\_\d+$/) {
1.73      www       618: 	    my %content=&unpackagemsg($errormsgs{$_});
1.74      www       619: 	    $msgs.='<p><img src="/adm/lonMisc/bomb.gif" /><b>'.
                    620: 		$content{'time'}.'</b>: '.$content{'message'}.
                    621: 		'<br /></p>';
1.73      www       622: 	}
                    623:     } 
                    624:     return $msgs;     
                    625: }
                    626: 
                    627: 
1.215     jms       628: 
                    629: 
1.73      www       630: 
                    631: sub del_url_author_res_msg {
1.75      www       632:     my $url=shift;
1.73      www       633:     $url=&Apache::lonnet::declutter($url);
1.187     albertel  634:     my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
1.77      www       635:     my @delmsgs=();
                    636:     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
                    637: 	if ($_=~/^\Q$url\E\_\d+$/) {
                    638: 	    push (@delmsgs,$_);
                    639: 	}
                    640:     }
                    641:     return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
1.73      www       642: }
1.215     jms       643: 
1.73      www       644: 
1.152     www       645: sub clear_author_res_msg {
                    646:     my $url=shift;
                    647:     $url=&Apache::lonnet::declutter($url);
1.187     albertel  648:     my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
1.152     www       649:     my @delmsgs=();
                    650:     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
                    651: 	if ($_=~/^\Q$url\E/) {
                    652: 	    push (@delmsgs,$_);
                    653: 	}
                    654:     }
                    655:     return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
                    656: }
1.215     jms       657: 
                    658: 
1.73      www       659: 
                    660: sub all_url_author_res_msg {
                    661:     my ($author,$domain)=@_;
1.75      www       662:     my %returnhash=();
1.76      www       663:     foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
1.75      www       664: 	$_=~/^(.+)\_\d+/;
                    665: 	$returnhash{$1}=1;
                    666:     }
                    667:     return %returnhash;
1.1       www       668: }
                    669: 
1.185     albertel  670: 
                    671: sub store_instructor_comment {
                    672:     my ($msg,$uname,$udom) = @_;
                    673:     my $cid  = $env{'request.course.id'};
                    674:     my $cnum = $env{'course.'.$cid.'.num'};
                    675:     my $cdom = $env{'course.'.$cid.'.domain'};
                    676:     my $subject= &mt('Record').' ['.$uname.':'.$udom.']';
                    677:     my $result = &user_normal_msg_raw($cnum,$cdom,$subject,$msg);
1.201     raeburn   678:     if ($result eq 'ok' || $result eq 'con_delayed') {
                    679:         
                    680:     }
1.185     albertel  681:     return $result;
                    682: }
                    683: 
1.1       www       684: 
1.38      www       685: sub user_crit_msg_raw {
1.201     raeburn   686:     my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage,
1.212     raeburn   687:         $nosentstore,$recipid,$attachmenturl)=@_;
1.2       www       688: # Check if allowed missing
1.190     raeburn   689:     my ($status,$packed_message);
1.2       www       690:     my $msgid='undefined';
                    691:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
1.131     www       692:     my $text=$message;
1.2       www       693:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
                    694:     if ($homeserver ne 'no_host') {
1.202     raeburn   695:        ($msgid,$packed_message)=&packagemsg($subject,$message,undef,undef,
1.212     raeburn   696:                                   $attachmenturl,undef,undef,undef,undef,undef,
                    697:                                   undef,undef,$recipid);
1.190     raeburn   698:        if ($sendback) { $packed_message.='<sendback>true</sendback>'; }
1.210     albertel  699:        $status=&Apache::lonnet::cput('critical', {$msgid => $packed_message},
                    700: 				     $domain,$user);
1.159     raeburn   701:         if (defined($sentmessage)) {
1.190     raeburn   702:             $$sentmessage = $packed_message;
1.159     raeburn   703:         }
1.201     raeburn   704:         if (!$nosentstore) {
1.193     raeburn   705:             (undef,my $packed_message_no_citation) =
1.212     raeburn   706:             &packagemsg($subject,$message,undef,undef,$attachmenturl,$user,
                    707:                         $domain,$msgid);
1.193     raeburn   708:             if ($status eq 'ok' || $status eq 'con_delayed') {
                    709:                 &store_sent_mail($msgid,$packed_message_no_citation);
                    710:             }
                    711:         }
1.2       www       712:     } else {
                    713:        $status='no_host';
                    714:     }
1.190     raeburn   715: 
1.53      www       716: # Notifications
1.186     www       717:     my %userenv = &Apache::loncommon::getemails($user,$domain);
1.53      www       718:     if ($userenv{'critnotification'}) {
1.131     www       719:       &sendnotification($userenv{'critnotification'},$user,$domain,$subject,1,
1.194     raeburn   720: 			$text,$msgid);
1.53      www       721:     }
1.132     www       722:     if ($toperm && $userenv{'permanentemail'}) {
                    723:       &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,1,
1.194     raeburn   724: 			$text,$msgid);
1.132     www       725:     }
1.53      www       726: # Log this
1.2       www       727:     &Apache::lonnet::logthis(
1.4       www       728:       'Sending critical email '.$msgid.
1.2       www       729:       ', log status: '.
1.140     albertel  730:       &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
                    731:                          $env{'user.home'},
1.2       www       732:       'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status: '
1.4       www       733:       .$status));
1.2       www       734:     return $status;
                    735: }
                    736: 
1.38      www       737: 
1.58      bowersj2  738: 
1.38      www       739: sub user_crit_msg {
1.201     raeburn   740:     my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage,
1.212     raeburn   741:         $nosentstore,$recipid,$attachmenturl)=@_;
1.183     albertel  742:     my @status;
1.38      www       743:     my %userenv = &Apache::lonnet::get('environment',['msgforward'],
                    744:                                        $domain,$user);
                    745:     my $msgforward=$userenv{'msgforward'};
                    746:     if ($msgforward) {
1.183     albertel  747:        foreach my $addr (split(/\,/,$msgforward)) {
                    748: 	 my ($forwuser,$forwdomain)=split(/\:/,$addr);
                    749:          push(@status,
                    750: 	      &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,
1.202     raeburn   751: 				 $sendback,$toperm,$sentmessage,$nosentstore,
1.212     raeburn   752:                                  $recipid,$attachmenturl));
1.38      www       753:        }
                    754:     } else { 
1.183     albertel  755: 	push(@status,
                    756: 	     &user_crit_msg_raw($user,$domain,$subject,$message,$sendback,
1.212     raeburn   757: 				$toperm,$sentmessage,$nosentstore,$recipid,
                    758:                                 $attachmenturl));
1.38      www       759:     }
1.183     albertel  760:     if (wantarray) {
                    761: 	return @status;
                    762:     }
                    763:     return join(' ',@status);
1.38      www       764: }
                    765: 
1.2       www       766: 
                    767: sub user_crit_received {
1.12      www       768:     my $msgid=shift;
                    769:     my %message=&Apache::lonnet::get('critical',[$msgid]);
1.52      www       770:     my %contents=&unpackagemsg($message{$msgid},1);
1.204     raeburn   771:     my $destname = $contents{'sendername'};
                    772:     my $destdom = $contents{'senderdomain'};
                    773:     if ($contents{'replytoaddr'}) {
                    774:         my ($repname,$repdom) = split(/:/,$contents{'replytoaddr'});
                    775:         if (&Apache::lonnet::homeserver($repname,$repdom) ne 'no_host') {
                    776:             $destname = $repname;
                    777:             $destdom = $repdom;    
                    778:         }
                    779:     }
1.24      www       780:     my $status='rec: '.($contents{'sendback'}?
1.204     raeburn   781:      &user_normal_msg($destname,$destdom,&mt('Receipt').': '.$env{'user.name'}.
                    782:                       ' '.&mt('at').' '.$env{'user.domain'}.', '.
                    783:                       $contents{'subject'},&mt('User').' '.$env{'user.name'}.
                    784:                       ' '.&mt('at').' '.$env{'user.domain'}.
                    785:                       ' acknowledged receipt of message'."\n".'   "'.
                    786:                       $contents{'subject'}.'"'."\n".&mt('dated').' '.
                    787:                       $contents{'time'}.".\n"
                    788:                       ):'no msg req');
1.5       www       789:     $status.=' trans: '.
1.12      www       790:      &Apache::lonnet::put(
                    791:      'nohist_email',{$contents{'msgid'} => $message{$msgid}});
1.5       www       792:     $status.=' del: '.
1.9       albertel  793:      &Apache::lonnet::del('critical',[$contents{'msgid'}]);
1.140     albertel  794:     &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
                    795:                          $env{'user.home'},'Received critical message '.
1.5       www       796:                          $contents{'msgid'}.
                    797:                          ', '.$status);
1.12      www       798:     return $status;
1.2       www       799: }
                    800: 
1.215     jms       801: 
                    802: 
1.2       www       803: 
1.38      www       804: sub user_normal_msg_raw {
1.132     www       805:     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
1.191     raeburn   806:         $toperm,$currid,$newid,$sentmessage,$crsmsgid,$symb,$restitle,
1.202     raeburn   807:         $error,$nosentstore,$recipid)=@_;
1.2       www       808: # Check if allowed missing
1.173     albertel  809:     my ($status,$packed_message);
1.2       www       810:     my $msgid='undefined';
1.131     www       811:     my $text=$message;
1.2       www       812:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
                    813:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
                    814:     if ($homeserver ne 'no_host') {
1.173     albertel  815:        ($msgid,$packed_message)=
                    816: 	                 &packagemsg($subject,$message,$citation,$baseurl,
1.174     raeburn   817:                                      $attachmenturl,$user,$domain,$currid,
1.202     raeburn   818:                                      undef,$crsmsgid,$symb,$error,$recipid);
1.174     raeburn   819: 
1.108     www       820: # Store in user folder
1.210     albertel  821:        $status=
                    822: 	   &Apache::lonnet::cput('nohist_email',{$msgid => $packed_message},
                    823: 				 $domain,$user);
1.108     www       824: # Save new message received time
1.40      www       825:        &Apache::lonnet::put
                    826:                          ('email_status',{'recnewemail'=>time},$domain,$user);
1.201     raeburn   827: # Into sent-mail folder if sent mail storage required
                    828:        if (!$nosentstore) {
1.190     raeburn   829:            (undef,my $packed_message_no_citation) =
                    830:                &packagemsg($subject,$message,undef,$baseurl,$attachmenturl,
1.191     raeburn   831:                            $user,$domain,$currid,undef,$crsmsgid,$symb,$error);
1.193     raeburn   832:            if ($status eq 'ok' || $status eq 'con_delayed') {
                    833:                &store_sent_mail($msgid,$packed_message_no_citation);
                    834:            }
1.156     raeburn   835:        }
1.201     raeburn   836:        if (ref($newid) eq 'SCALAR') {
1.196     www       837: 	   $$newid = $msgid;
                    838:        }
1.201     raeburn   839:        if (ref($sentmessage) eq 'SCALAR') {
1.196     www       840: 	   $$sentmessage = $packed_message;
                    841:        }
                    842: # Notifications
1.206     raeburn   843:        my %userenv = &Apache::loncommon::getemails($user,$domain);
1.196     www       844:        if ($userenv{'notification'}) {
                    845: 	   &sendnotification($userenv{'notification'},$user,$domain,$subject,0,
                    846: 			     $text,$msgid);
                    847:        }
                    848:        if ($toperm && $userenv{'permanentemail'}) {
1.214     raeburn   849:            if ((!$userenv{'notification'}) || ($userenv{'notification'} ne $userenv{'permanentemail'})) {
                    850: 	       &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,0,
                    851: 	  		         $text,$msgid);
                    852:            }
1.196     www       853:        }
                    854:        &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
                    855: 			    $env{'user.home'},
                    856: 			    'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
                    857:    } else {
1.2       www       858:        $status='no_host';
1.196     www       859:    }
1.2       www       860:     return $status;
                    861: }
1.38      www       862: 
                    863: sub user_normal_msg {
1.132     www       864:     my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
1.202     raeburn   865: 	$toperm,$sentmessage,$symb,$restitle,$error,$nosentstore,$recipid)=@_;
1.199     raeburn   866:     my @status;
1.38      www       867:     my %userenv = &Apache::lonnet::get('environment',['msgforward'],
                    868:                                        $domain,$user);
                    869:     my $msgforward=$userenv{'msgforward'};
                    870:     if ($msgforward) {
1.171     banghart  871:         foreach (split(/\,/,$msgforward)) {
1.172     albertel  872: 	    my ($forwuser,$forwdomain)=split(/\:/,$_);
1.199     raeburn   873: 	    push(@status,
1.171     banghart  874: 	        &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
1.172     albertel  875: 				     $citation,$baseurl,$attachmenturl,$toperm,
1.201     raeburn   876: 				     undef,undef,$sentmessage,undef,$symb,
1.202     raeburn   877:                                      $restitle,$error,$nosentstore,$recipid));
1.171     banghart  878:         }
1.191     raeburn   879:     } else {
1.199     raeburn   880: 	push(@status,&user_normal_msg_raw($user,$domain,$subject,$message,
1.172     albertel  881: 				     $citation,$baseurl,$attachmenturl,$toperm,
1.201     raeburn   882: 				     undef,undef,$sentmessage,undef,$symb,
1.202     raeburn   883:                                      $restitle,$error,$nosentstore,$recipid));
1.199     raeburn   884:     }
                    885:     if (wantarray) {
                    886:         return @status;
1.38      www       887:     }
1.199     raeburn   888:     return join(' ',@status);
1.38      www       889: }
                    890: 
1.201     raeburn   891: sub process_sent_mail {
1.214     raeburn   892:     my ($msgsubj,$subj_prefix,$numsent,$stamp,$msgname,$msgdom,$msgcount,$context,$pid,$savemsg,$recusers,$recudoms,$baseurl,$attachmenturl,$symb,$error,$senderuname,$senderdom,$recipid) = @_;
1.201     raeburn   893:     my $sentsubj;
                    894:     if ($numsent > 1) {
                    895:         $sentsubj = $subj_prefix.' ('.$numsent.' sent) '.$msgsubj;
1.205     raeburn   896:     } else {
                    897:         if ($subj_prefix) {
                    898:             $sentsubj = $subj_prefix.' ';
                    899:         }
                    900:         $sentsubj .= $msgsubj;
1.201     raeburn   901:     }
                    902:     $sentsubj = &HTML::Entities::encode($sentsubj,'<>&"');
                    903:     my $sentmsgid = 
                    904:         &buildmsgid($stamp,$sentsubj,$msgname,$msgdom,$msgcount,$context,$pid);
                    905:     (undef,my $sentmessage) =
                    906:         &packagemsg($msgsubj,$savemsg,undef,$baseurl,$attachmenturl,$recusers,
1.214     raeburn   907:                     $recudoms,$sentmsgid,undef,undef,$symb,$error,$recipid);
1.201     raeburn   908:     my $status = &store_sent_mail($sentmsgid,$sentmessage,$senderuname,
1.210     albertel  909:                                   $senderdom);
1.201     raeburn   910:     return $status;
                    911: }
                    912: 
1.156     raeburn   913: sub store_sent_mail {
1.210     albertel  914:     my ($msgid,$message,$senderuname,$senderdom) = @_;
1.201     raeburn   915:     if ($senderuname eq '') {
                    916:         $senderuname = $env{'user.name'};
                    917:     }
                    918:     if ($senderdom eq '') {
                    919:         $senderdom = $env{'user.domain'};
                    920:     }
1.210     albertel  921:     my $status =' '.&Apache::lonnet::cput('nohist_email_sent',
                    922: 					  {$msgid => $message},
                    923: 					  $senderdom,$senderuname);
1.156     raeburn   924:     return $status;
                    925: }
1.2       www       926: 
1.202     raeburn   927: sub store_recipients {
                    928:     my ($subject,$sendername,$senderdom,$reciphash) = @_;
                    929:     my $context = &get_course_context();
1.203     albertel  930:     my $now = time();
1.202     raeburn   931:     my $msgcount = &get_uniq();
                    932:     my $recipid =
                    933:         &buildmsgid($now,$subject,$sendername,$senderdom,$msgcount,$context,$$);
                    934:     my %recipinfo = (
                    935:                          $recipid => $reciphash,
                    936:                     );
                    937:     my $status = &Apache::lonnet::put('nohist_emailrecip',\%recipinfo,
                    938:                                       $senderdom,$sendername); 
                    939:     if ($status eq 'ok') {
                    940:         return ($recipid,$status);
                    941:     } else {
                    942:         return (undef,$status);
                    943:     }
                    944: }
                    945: 
1.106     www       946: 
                    947: sub foldersuffix {
                    948:     my $folder=shift;
                    949:     unless ($folder) { return ''; }
1.189     raeburn   950:     my $suffix;
                    951:     my %folderhash = &get_user_folders($folder);
                    952:     if (ref($folderhash{$folder}) eq 'HASH') {
                    953:         $suffix = '_'.&escape($folderhash{$folder}{'id'});
                    954:     } else {
                    955:         $suffix = '_'.&escape($folder);
                    956:     }
                    957:     return $suffix;
                    958: }
                    959: 
                    960: 
                    961: sub get_user_folders {
                    962:     my ($folder) = @_;
                    963:     my %userfolders = 
                    964:           &Apache::lonnet::dump('email_folders',undef,undef,$folder);
                    965:     my $lock = "\0".'lock_counter'; # locks db while counter incremented
                    966:     my $counter = "\0".'idcount';   # used in suffix for email db files
                    967:     if (defined($userfolders{$lock})) {
                    968:         delete($userfolders{$lock});
                    969:     }
                    970:     if (defined($userfolders{$counter})) {
                    971:         delete($userfolders{$counter});
                    972:     }
                    973:     return %userfolders;
1.106     www       974: }
                    975: 
1.197     albertel  976: sub secapply {
                    977:     my $rec=shift;
                    978:     my $defaultflag=shift;
                    979:     $rec=~s/\s+//g;
                    980:     $rec=~s/\@/\:/g;
                    981:     my ($adr,$sections_or_groups)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
                    982:     if ($sections_or_groups) {
                    983: 	foreach my $item (split(/\;/,$sections_or_groups)) {
                    984:             if (($item eq $env{'request.course.sec'}) ||
                    985:                 ($defaultflag && ($item eq '*'))) {
                    986:                 return $adr; 
                    987:             } elsif ($env{'request.course.groups'}) {
                    988:                 my @usersgroups = split(/:/,$env{'request.course.groups'});
                    989:                 if (grep(/^\Q$item\E$/,@usersgroups)) {
                    990:                     return $adr;
                    991:                 }
                    992:             } 
                    993:         }
                    994:     } else {
                    995:        return $rec;
                    996:     }
                    997:     return '';
                    998: }
                    999: 
                   1000: sub decide_receiver {
                   1001:     my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
                   1002:     &Apache::lonenc::check_decrypt(\$feedurl);
                   1003:     my $typestyle='';
                   1004:     my %to=();
                   1005:     if ($env{'form.discuss'} eq 'author' ||$author) {
                   1006: 	$typestyle.='Submitting as Author Feedback<br />';
                   1007: 	$feedurl=~ m{^/res/($LONCAPA::domain_re)/($LONCAPA::username_re)/};
                   1008: 	$to{$2.':'.$1}=1;
                   1009:     }
                   1010:     my $cid = $env{'request.course.id'};
                   1011:     if ($env{'form.discuss'} eq 'question' ||$question) {
                   1012: 	$typestyle.=&mt('Submitting as Question').'<br />';
                   1013: 	foreach my $item (split(/\,/,$env{'course.'.$cid.'.question.email'})) {
                   1014: 	    my $rec=&secapply($item,$defaultflag);
                   1015: 	    if ($rec) { $to{$rec}=1; }
                   1016: 	} 
                   1017:     }
                   1018:     if ($env{'form.discuss'} eq 'course' ||$course) {
                   1019: 	$typestyle.=&mt('Submitting as Comment').'<br />';
                   1020: 	foreach my $item (split(/\,/,$env{'course.'.$cid.'.comment.email'})) {
                   1021: 	    my $rec=&secapply($item,$defaultflag);
                   1022: 	    if ($rec) { $to{$rec}=1; }
                   1023: 	} 
                   1024:     }
                   1025:     if ($env{'form.discuss'} eq 'policy' ||$policy) {
                   1026: 	$typestyle.=&mt('Submitting as Policy Feedback').'<br />';
                   1027: 	foreach my $item (split(/\,/,$env{'course.'.$cid.'.policy.email'})) {
                   1028: 	    my $rec=&secapply($item,$defaultflag);
                   1029: 	    if ($rec) { $to{$rec}=1; }
                   1030: 	} 
                   1031:     }
                   1032:     if ((scalar(%to) eq '0') && (!$defaultflag)) {
                   1033: 	($typestyle,%to)=
                   1034: 	    &decide_receiver($feedurl,$author,$question,$course,$policy,1);
                   1035:     }
                   1036:     return ($typestyle,%to);
                   1037: }
                   1038: 
1.180     albertel 1039: 1;
1.1       www      1040: __END__
                   1041: 

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