1: # The LearningOnline Network with CAPA
2: # Routines for messaging
3: #
4: # $Id: lonmsg.pm,v 1.210 2007/08/18 00:32:52 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::lonmsg;
30:
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:
56: =head1 FUNCTIONS
57:
58: =over 4
59:
60: =cut
61:
62: use strict;
63: use Apache::lonnet;
64: use HTML::TokeParser();
65: use Apache::lonlocal;
66: use Mail::Send;
67: use LONCAPA qw(:DEFAULT :match);
68:
69: {
70: my $uniq;
71: sub get_uniq {
72: $uniq++;
73: return $uniq;
74: }
75: }
76:
77: # ===================================================================== Package
78:
79: sub packagemsg {
80: my ($subject,$message,$citation,$baseurl,$attachmenturl,
81: $recuser,$recdomain,$msgid,$type,$crsmsgid,$symb,$error,$recipid)=@_;
82: $message =&HTML::Entities::encode($message,'<>&"');
83: $citation=&HTML::Entities::encode($citation,'<>&"');
84: $subject =&HTML::Entities::encode($subject,'<>&"');
85: #remove machine specification
86: $baseurl =~ s|^http://[^/]+/|/|;
87: $baseurl =&HTML::Entities::encode($baseurl,'<>&"');
88: #remove machine specification
89: $attachmenturl =~ s|^http://[^/]+/|/|;
90: $attachmenturl =&HTML::Entities::encode($attachmenturl,'<>&"');
91: my $course_context = &get_course_context();
92: my $now=time;
93: my $msgcount = &get_uniq();
94: unless(defined($msgid)) {
95: $msgid = &buildmsgid($now,$subject,$env{'user.name'},$env{'user.domain'},
96: $msgcount,$course_context,$symb,$error,$$);
97: }
98: my $result = '<sendername>'.$env{'user.name'}.'</sendername>'.
99: '<senderdomain>'.$env{'user.domain'}.'</senderdomain>'.
100: '<subject>'.$subject.'</subject>'.
101: '<time>'.&Apache::lonlocal::locallocaltime($now).'</time>';
102: if (defined($crsmsgid)) {
103: $result.= '<courseid>'.$course_context.'</courseid>'.
104: '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
105: '<msgid>'.$msgid.'</msgid>'.
106: '<coursemsgid>'.$crsmsgid.'</coursemsgid>'.
107: '<message>'.$message.'</message>';
108: return ($msgid,$result);
109: }
110: $result .= '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
111: '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
112: '<client>'.$ENV{'REMOTE_ADDR'}.'</client>'.
113: '<browsertype>'.$env{'browser.type'}.'</browsertype>'.
114: '<browseros>'.$env{'browser.os'}.'</browseros>'.
115: '<browserversion>'.$env{'browser.version'}.'</browserversion>'.
116: '<browsermathml>'.$env{'browser.mathml'}.'</browsermathml>'.
117: '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
118: '<courseid>'.$course_context.'</courseid>'.
119: '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
120: '<role>'.$env{'request.role'}.'</role>'.
121: '<resource>'.$env{'request.filename'}.'</resource>'.
122: '<msgid>'.$msgid.'</msgid>';
123: if (ref($recuser) eq 'ARRAY') {
124: for (my $i=0; $i<@{$recuser}; $i++) {
125: if ($type eq 'dcmail') {
126: my ($username,$email) = split(/:/,$$recuser[$i]);
127: $username = &unescape($username);
128: $email = &unescape($email);
129: $username = &HTML::Entities::encode($username,'<>&"');
130: $email = &HTML::Entities::encode($email,'<>&"');
131: $result .= '<recipient username="'.$username.'">'.
132: $email.'</recipient>';
133: } else {
134: $result .= '<recuser>'.$$recuser[$i].'</recuser>'.
135: '<recdomain>'.$$recdomain[$i].'</recdomain>';
136: }
137: }
138: } else {
139: $result .= '<recuser>'.$recuser.'</recuser>'.
140: '<recdomain>'.$recdomain.'</recdomain>';
141: }
142: $result .= '<message>'.$message.'</message>';
143: if (defined($citation)) {
144: $result.='<citation>'.$citation.'</citation>';
145: }
146: if (defined($baseurl)) {
147: $result.= '<baseurl>'.$baseurl.'</baseurl>';
148: }
149: if (defined($attachmenturl)) {
150: $result.= '<attachmenturl>'.$attachmenturl.'</attachmenturl>';
151: }
152: if (defined($symb)) {
153: $result.= '<symb>'.$symb.'</symb>';
154: if ($course_context ne '') {
155: if ($course_context eq $env{'request.course.id'}) {
156: my $resource_title = &Apache::lonnet::gettitle($symb);
157: if (defined($resource_title)) {
158: $result .= '<resource_title>'.$resource_title.'</resource_title>';
159: }
160: }
161: }
162: }
163: if (defined($recipid)) {
164: $result.= '<recipid>'.$recipid.'</recipid>';
165: }
166: if ($env{'form.can_reply'} eq 'N') {
167: $result .= '<noreplies>1</noreplies>';
168: }
169: if ($env{'form.reply_to_addr'}) {
170: my ($replytoname,$replytodom) = split(/:/,$env{'form.reply_to_addr'});
171: if (!($replytoname eq $env{'user.name'} && $replytodom eq $env{'user.domain'})) {
172: if (&Apache::lonnet::homeserver($replytoname,$replytodom) ne 'no_host') {
173: $result .= '<replytoaddr>'.$env{'form.reply_to_addr'}.'</replytoaddr>';
174: }
175: }
176: }
177: return ($msgid,$result);
178: }
179:
180: sub get_course_context {
181: my $course_context;
182: if (defined($env{'form.replyid'})) {
183: my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid)=
184: split(/\:/,&unescape($env{'form.replyid'}));
185: $course_context = $origcid;
186: }
187: foreach my $key (keys(%env)) {
188: if ($key=~/^form\.(rep)?rec\_(.*)$/) {
189: my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid) =
190: split(/\:/,&unescape($2));
191: $course_context = $origcid;
192: last;
193: }
194: }
195: if ($course_context eq '') {
196: $course_context = $env{'request.course.id'};
197: }
198: return $course_context;
199: }
200:
201: # ================================================== Unpack message into a hash
202:
203: sub unpackagemsg {
204: my ($message,$notoken)=@_;
205: my %content=();
206: my $parser=HTML::TokeParser->new(\$message);
207: my $token;
208: while ($token=$parser->get_token) {
209: if ($token->[0] eq 'S') {
210: my $entry=$token->[1];
211: my $value=$parser->get_text('/'.$entry);
212: if (($entry eq 'recuser') || ($entry eq 'recdomain')) {
213: push(@{$content{$entry}},$value);
214: } elsif ($entry eq 'recipient') {
215: my $username = $token->[2]{'username'};
216: $username = &HTML::Entities::decode($username,'<>&"');
217: $content{$entry}{$username} = $value;
218: } else {
219: $content{$entry}=$value;
220: }
221: }
222: }
223: if (!exists($content{'recuser'})) { $content{'recuser'} = []; }
224: if ($content{'attachmenturl'}) {
225: my ($fname)=($content{'attachmenturl'}=~m|/([^/]+)$|);
226: if ($notoken) {
227: $content{'message'}.='<p>'.&mt('Attachment').': <tt>'.$fname.'</tt>';
228: } else {
229: &Apache::lonnet::allowuploaded('/adm/msg',
230: $content{'attachmenturl'});
231: $content{'message'}.='<p>'.&mt('Attachment').
232: ': <a href="'.$content{'attachmenturl'}.'"><tt>'.
233: $fname.'</tt></a>';
234: }
235: }
236: return %content;
237: }
238:
239: # ======================================================= Get info out of msgid
240:
241: sub buildmsgid {
242: my ($now,$subject,$uname,$udom,$msgcount,$course_context,$symb,$error,$pid) = @_;
243: $subject=&escape($subject);
244: $symb = &escape($symb);
245: return(&escape($now.':'.$subject.':'.$uname.':'.
246: $udom.':'.$msgcount.':'.$course_context.':'.$pid.':'.$symb.':'.$error));
247: }
248:
249: sub unpackmsgid {
250: my ($msgid,$folder,$skipstatus,$status_cache)=@_;
251: $msgid=&unescape($msgid);
252: my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$fromcid,
253: $processid,$symb,$error) = split(/\:/,&unescape($msgid));
254: $shortsubj = &unescape($shortsubj);
255: $shortsubj = &HTML::Entities::decode($shortsubj);
256: $symb = &unescape($symb);
257: if (!defined($processid)) { $fromcid = ''; }
258: my %status=();
259: unless ($skipstatus) {
260: if (ref($status_cache)) {
261: $status{$msgid} = $status_cache->{$msgid};
262: } else {
263: my $suffix=&foldersuffix($folder);
264: %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
265: }
266: if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
267: unless ($status{$msgid}) { $status{$msgid}='new'; }
268: }
269: return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid},$fromcid,$symb,$error);
270: }
271:
272:
273: sub sendemail {
274: my ($to,$subject,$body)=@_;
275: my %senderemails=&Apache::loncommon::getemails();
276: my $senderaddress='';
277: foreach my $type ('notification','permanentemail','critnotification') {
278: if ($senderemails{$type}) {
279: $senderaddress=$senderemails{$type};
280: }
281: }
282: $body=
283: "*** ".&mt('This is an automatic message generated by the LON-CAPA system.')."\n".
284: "*** ".($senderaddress?&mt('You can reply to this message'):&mt('Please do not reply to this address.')."\n*** ".
285: &mt('A reply will not be received by the recipient!'))."\n\n".$body;
286: my $msg = new Mail::Send;
287: $msg->to($to);
288: $msg->subject('[LON-CAPA] '.$subject);
289: if ($senderaddress) { $msg->add('Reply-to',$senderaddress); $msg->add('From',$senderaddress); }
290: if (my $fh = $msg->open()) {
291: print $fh $body;
292: $fh->close;
293: }
294: }
295:
296: # ==================================================== Send notification emails
297:
298: sub sendnotification {
299: my ($to,$touname,$toudom,$subj,$crit,$text,$msgid)=@_;
300: my $sender=$env{'environment.firstname'}.' '.$env{'environment.lastname'};
301: unless ($sender=~/\w/) {
302: $sender=$env{'user.name'}.':'.$env{'user.domain'};
303: }
304: my $critical=($crit?' critical':'');
305:
306: $text=~s/\<\;/\</gs;
307: $text=~s/\>\;/\>/gs;
308: my $url='http://'.
309: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($touname,$toudom)).
310: '/adm/email?username='.$touname.'&domain='.$toudom;
311: my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,
312: $symb,$error) = &Apache::lonmsg::unpackmsgid($msgid);
313: my ($coursetext,$body,$bodybegin,$bodysubj,$bodyend);
314: if ($fromcid ne '') {
315: $coursetext = "\n".&mt('Course').': ';
316: if ($env{'course.'.$fromcid.'.description'} ne '') {
317: $coursetext .= $env{'course.'.$fromcid.'.description'};
318: } else {
319: my %coursehash = &Apache::lonnet::coursedescription($fromcid,);
320: if ($coursehash{'description'} ne '') {
321: $coursetext .= $coursehash{'description'};
322: }
323: }
324: $coursetext .= "\n\n";
325: }
326: my @recipients = split(/,/,$to);
327: $bodybegin = $coursetext.
328: &mt('You received a'.$critical.' message from [_1] in LON-CAPA.',$sender).' ';
329: $bodysubj = &mt('The subject is
330:
331: [_1]
332:
333: ',$subj)."\n".
334: '=== '.&mt('Excerpt')." ============================================================
335: ";
336: $bodyend = "
337: ========================================================================
338:
339: ".&mt('Use
340:
341: [_1]
342:
343: to access the full message.',$url);
344: my %userenv = &Apache::lonnet::get('environment',['notifywithhtml'],$toudom,$touname);
345: my $subject = &mt("'New' $critical message from ").$sender;
346:
347: my ($blocked,$blocktext);
348: if (!$crit) {
349: my %setters;
350: my ($startblock,$endblock) =
351: &Apache::loncommon::blockcheck(\%setters,'com',$touname,$toudom);
352: if ($startblock && $endblock) {
353: $blocked = 1;
354: my $showstart = &Apache::lonlocal::locallocaltime($startblock);
355: my $showend = &Apache::lonlocal::locallocaltime($endblock);
356: $blocktext = &mt('LON-CAPA messages sent to you between [_1] and [_2] will be inaccessible until the end of this time period, because you are a student in a course with an active communications block.',$showstart,$showend);
357: }
358: }
359: if ($userenv{'notifywithhtml'} ne '') {
360: my @htmlexcerpt = split(/,/,$userenv{'notifywithhtml'});
361: foreach my $addr (@recipients) {
362: if ($blocked) {
363: $body = $bodybegin."\n".$blocktext."\n".$bodyend;
364: } else {
365: my $sendtext = $text;
366: if (!grep/^\Q$addr\E/,@htmlexcerpt) {
367: $sendtext =~ s/\<\/*[^\>]+\>//gs;
368: }
369: $body = $bodybegin.$bodysubj.$sendtext.$bodyend;
370: }
371: &sendemail($addr,$subject,$body);
372: }
373: } else {
374: if ($blocked) {
375: $body = $bodybegin."\n".$blocktext."\n".$bodyend;
376: } else {
377: $text =~ s/\<\/*[^\>]+\>//gs;
378: $body = $bodybegin.$bodysubj.$text.$bodyend;
379: }
380: &sendemail($to,$subject,$body);
381: }
382: }
383: # ============================================================= Check for email
384:
385: sub newmail {
386: if ((time-$env{'user.mailcheck.time'})>300) {
387: my %what=&Apache::lonnet::get('email_status',['recnewemail']);
388: &Apache::lonnet::appenv('user.mailcheck.time'=>time);
389: if ($what{'recnewemail'}>0) { return 1; }
390: }
391: return 0;
392: }
393:
394: # =============================== Automated message to the author of a resource
395:
396: =pod
397:
398: =item * B<author_res_msg($filename, $message)>: Sends message $message to the owner
399: of the resource with the URI $filename.
400:
401: =cut
402:
403: sub author_res_msg {
404: my ($filename,$message)=@_;
405: unless ($message) { return 'empty'; }
406: $filename=&Apache::lonnet::declutter($filename);
407: my ($domain,$author,@dummy)=split(/\//,$filename);
408: my $homeserver=&Apache::lonnet::homeserver($author,$domain);
409: if ($homeserver ne 'no_host') {
410: my $id=unpack("%32C*",$message);
411: $message .= " <p>This error occurred on machine ".
412: $Apache::lonnet::perlvar{'lonHostID'}."</p>";
413: my $msgid;
414: ($msgid,$message)=&packagemsg($filename,$message);
415: return &Apache::lonnet::reply('put:'.$domain.':'.$author.
416: ':nohist_res_msgs:'.
417: &escape($filename.'_'.$id).'='.
418: &escape($message),$homeserver);
419: }
420: return 'no_host';
421: }
422:
423: # =========================================== Retrieve author resource messages
424:
425: sub retrieve_author_res_msg {
426: my $url=shift;
427: $url=&Apache::lonnet::declutter($url);
428: my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
429: my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$domain,$author);
430: my $msgs='';
431: foreach (keys %errormsgs) {
432: if ($_=~/^\Q$url\E\_\d+$/) {
433: my %content=&unpackagemsg($errormsgs{$_});
434: $msgs.='<p><img src="/adm/lonMisc/bomb.gif" /><b>'.
435: $content{'time'}.'</b>: '.$content{'message'}.
436: '<br /></p>';
437: }
438: }
439: return $msgs;
440: }
441:
442:
443: # =============================== Delete all author messages related to one URL
444:
445: sub del_url_author_res_msg {
446: my $url=shift;
447: $url=&Apache::lonnet::declutter($url);
448: my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
449: my @delmsgs=();
450: foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
451: if ($_=~/^\Q$url\E\_\d+$/) {
452: push (@delmsgs,$_);
453: }
454: }
455: return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
456: }
457: # =================================== Clear out all author messages in URL path
458:
459: sub clear_author_res_msg {
460: my $url=shift;
461: $url=&Apache::lonnet::declutter($url);
462: my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
463: my @delmsgs=();
464: foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
465: if ($_=~/^\Q$url\E/) {
466: push (@delmsgs,$_);
467: }
468: }
469: return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
470: }
471: # ================= Return hash with URLs for which there is a resource message
472:
473: sub all_url_author_res_msg {
474: my ($author,$domain)=@_;
475: my %returnhash=();
476: foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
477: $_=~/^(.+)\_\d+/;
478: $returnhash{$1}=1;
479: }
480: return %returnhash;
481: }
482:
483: # ====================================== Add a comment to the User Notes screen
484:
485: sub store_instructor_comment {
486: my ($msg,$uname,$udom) = @_;
487: my $cid = $env{'request.course.id'};
488: my $cnum = $env{'course.'.$cid.'.num'};
489: my $cdom = $env{'course.'.$cid.'.domain'};
490: my $subject= &mt('Record').' ['.$uname.':'.$udom.']';
491: my $result = &user_normal_msg_raw($cnum,$cdom,$subject,$msg);
492: if ($result eq 'ok' || $result eq 'con_delayed') {
493:
494: }
495: return $result;
496: }
497:
498: # ================================================== Critical message to a user
499:
500: sub user_crit_msg_raw {
501: my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage,
502: $nosentstore,$recipid)=@_;
503: # Check if allowed missing
504: my ($status,$packed_message);
505: my $msgid='undefined';
506: unless (($message)&&($user)&&($domain)) { $status='empty'; };
507: my $text=$message;
508: my $homeserver=&Apache::lonnet::homeserver($user,$domain);
509: if ($homeserver ne 'no_host') {
510: ($msgid,$packed_message)=&packagemsg($subject,$message,undef,undef,
511: undef,undef,undef,undef,undef,undef,undef,
512: undef,$recipid);
513: if ($sendback) { $packed_message.='<sendback>true</sendback>'; }
514: $status=&Apache::lonnet::cput('critical', {$msgid => $packed_message},
515: $domain,$user);
516: if (defined($sentmessage)) {
517: $$sentmessage = $packed_message;
518: }
519: if (!$nosentstore) {
520: (undef,my $packed_message_no_citation) =
521: &packagemsg($subject,$message,undef,undef,undef,$user,$domain,
522: $msgid);
523: if ($status eq 'ok' || $status eq 'con_delayed') {
524: &store_sent_mail($msgid,$packed_message_no_citation);
525: }
526: }
527: } else {
528: $status='no_host';
529: }
530:
531: # Notifications
532: my %userenv = &Apache::loncommon::getemails($user,$domain);
533: if ($userenv{'critnotification'}) {
534: &sendnotification($userenv{'critnotification'},$user,$domain,$subject,1,
535: $text,$msgid);
536: }
537: if ($toperm && $userenv{'permanentemail'}) {
538: &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,1,
539: $text,$msgid);
540: }
541: # Log this
542: &Apache::lonnet::logthis(
543: 'Sending critical email '.$msgid.
544: ', log status: '.
545: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
546: $env{'user.home'},
547: 'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status: '
548: .$status));
549: return $status;
550: }
551:
552: # New routine that respects "forward" and calls old routine
553:
554: =pod
555:
556: =item * B<user_crit_msg($user, $domain, $subject, $message, $sendback, $nosentstore,$recipid)>:
557: Sends a critical message $message to the $user at $domain. If $sendback
558: is true, a receipt will be sent to the current user when $user receives
559: the message.
560:
561: Additionally it will check if the user has a Forwarding address
562: set, and send the message to that address instead
563:
564: returns
565: - in array context a list of results for each message that was sent
566: - in scalar context a space seperated list of results for each
567: message sent
568:
569: =cut
570:
571: sub user_crit_msg {
572: my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage,
573: $nosentstore,$recipid)=@_;
574: my @status;
575: my %userenv = &Apache::lonnet::get('environment',['msgforward'],
576: $domain,$user);
577: my $msgforward=$userenv{'msgforward'};
578: if ($msgforward) {
579: foreach my $addr (split(/\,/,$msgforward)) {
580: my ($forwuser,$forwdomain)=split(/\:/,$addr);
581: push(@status,
582: &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,
583: $sendback,$toperm,$sentmessage,$nosentstore,
584: $recipid));
585: }
586: } else {
587: push(@status,
588: &user_crit_msg_raw($user,$domain,$subject,$message,$sendback,
589: $toperm,$sentmessage,$nosentstore,$recipid));
590: }
591: if (wantarray) {
592: return @status;
593: }
594: return join(' ',@status);
595: }
596:
597: # =================================================== Critical message received
598:
599: sub user_crit_received {
600: my $msgid=shift;
601: my %message=&Apache::lonnet::get('critical',[$msgid]);
602: my %contents=&unpackagemsg($message{$msgid},1);
603: my $destname = $contents{'sendername'};
604: my $destdom = $contents{'senderdomain'};
605: if ($contents{'replytoaddr'}) {
606: my ($repname,$repdom) = split(/:/,$contents{'replytoaddr'});
607: if (&Apache::lonnet::homeserver($repname,$repdom) ne 'no_host') {
608: $destname = $repname;
609: $destdom = $repdom;
610: }
611: }
612: my $status='rec: '.($contents{'sendback'}?
613: &user_normal_msg($destname,$destdom,&mt('Receipt').': '.$env{'user.name'}.
614: ' '.&mt('at').' '.$env{'user.domain'}.', '.
615: $contents{'subject'},&mt('User').' '.$env{'user.name'}.
616: ' '.&mt('at').' '.$env{'user.domain'}.
617: ' acknowledged receipt of message'."\n".' "'.
618: $contents{'subject'}.'"'."\n".&mt('dated').' '.
619: $contents{'time'}.".\n"
620: ):'no msg req');
621: $status.=' trans: '.
622: &Apache::lonnet::put(
623: 'nohist_email',{$contents{'msgid'} => $message{$msgid}});
624: $status.=' del: '.
625: &Apache::lonnet::del('critical',[$contents{'msgid'}]);
626: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
627: $env{'user.home'},'Received critical message '.
628: $contents{'msgid'}.
629: ', '.$status);
630: return $status;
631: }
632:
633: # ======================================================== Normal communication
634:
635: sub user_normal_msg_raw {
636: my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
637: $toperm,$currid,$newid,$sentmessage,$crsmsgid,$symb,$restitle,
638: $error,$nosentstore,$recipid)=@_;
639: # Check if allowed missing
640: my ($status,$packed_message);
641: my $msgid='undefined';
642: my $text=$message;
643: unless (($message)&&($user)&&($domain)) { $status='empty'; };
644: my $homeserver=&Apache::lonnet::homeserver($user,$domain);
645: if ($homeserver ne 'no_host') {
646: ($msgid,$packed_message)=
647: &packagemsg($subject,$message,$citation,$baseurl,
648: $attachmenturl,$user,$domain,$currid,
649: undef,$crsmsgid,$symb,$error,$recipid);
650:
651: # Store in user folder
652: $status=
653: &Apache::lonnet::cput('nohist_email',{$msgid => $packed_message},
654: $domain,$user);
655: # Save new message received time
656: &Apache::lonnet::put
657: ('email_status',{'recnewemail'=>time},$domain,$user);
658: # Into sent-mail folder if sent mail storage required
659: if (!$nosentstore) {
660: (undef,my $packed_message_no_citation) =
661: &packagemsg($subject,$message,undef,$baseurl,$attachmenturl,
662: $user,$domain,$currid,undef,$crsmsgid,$symb,$error);
663: if ($status eq 'ok' || $status eq 'con_delayed') {
664: &store_sent_mail($msgid,$packed_message_no_citation);
665: }
666: }
667: if (ref($newid) eq 'SCALAR') {
668: $$newid = $msgid;
669: }
670: if (ref($sentmessage) eq 'SCALAR') {
671: $$sentmessage = $packed_message;
672: }
673: # Notifications
674: my %userenv = &Apache::loncommon::getemails($user,$domain);
675: if ($userenv{'notification'}) {
676: &sendnotification($userenv{'notification'},$user,$domain,$subject,0,
677: $text,$msgid);
678: }
679: if ($toperm && $userenv{'permanentemail'}) {
680: &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,0,
681: $text,$msgid);
682: }
683: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
684: $env{'user.home'},
685: 'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
686: } else {
687: $status='no_host';
688: }
689: return $status;
690: }
691:
692: # New routine that respects "forward" and calls old routine
693:
694: =pod
695:
696: =item * B<user_normal_msg($user, $domain, $subject, $message, $citation,
697: $baseurl, $attachmenturl, $toperm, $sentmessage, $symb, $restitle,
698: $error,$nosentstore,$recipid)>:
699: Sends a message to the $user at $domain, with subject $subject and message $message.
700:
701: Additionally it will check if the user has a Forwarding address
702: set, and send the message to that address instead
703:
704: returns
705: - in array context a list of results for each message that was sent
706: - in scalar context a space seperated list of results for each
707: message sent
708:
709: =cut
710:
711: sub user_normal_msg {
712: my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
713: $toperm,$sentmessage,$symb,$restitle,$error,$nosentstore,$recipid)=@_;
714: my @status;
715: my %userenv = &Apache::lonnet::get('environment',['msgforward'],
716: $domain,$user);
717: my $msgforward=$userenv{'msgforward'};
718: if ($msgforward) {
719: foreach (split(/\,/,$msgforward)) {
720: my ($forwuser,$forwdomain)=split(/\:/,$_);
721: push(@status,
722: &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
723: $citation,$baseurl,$attachmenturl,$toperm,
724: undef,undef,$sentmessage,undef,$symb,
725: $restitle,$error,$nosentstore,$recipid));
726: }
727: } else {
728: push(@status,&user_normal_msg_raw($user,$domain,$subject,$message,
729: $citation,$baseurl,$attachmenturl,$toperm,
730: undef,undef,$sentmessage,undef,$symb,
731: $restitle,$error,$nosentstore,$recipid));
732: }
733: if (wantarray) {
734: return @status;
735: }
736: return join(' ',@status);
737: }
738:
739: sub process_sent_mail {
740: my ($msgsubj,$subj_prefix,$numsent,$stamp,$msgname,$msgdom,$msgcount,$context,$pid,$savemsg,$recusers,$recudoms,$baseurl,$attachmenturl,$symb,$error,$senderuname,$senderdom) = @_;
741: my $sentsubj;
742: if ($numsent > 1) {
743: $sentsubj = $subj_prefix.' ('.$numsent.' sent) '.$msgsubj;
744: } else {
745: if ($subj_prefix) {
746: $sentsubj = $subj_prefix.' ';
747: }
748: $sentsubj .= $msgsubj;
749: }
750: $sentsubj = &HTML::Entities::encode($sentsubj,'<>&"');
751: my $sentmsgid =
752: &buildmsgid($stamp,$sentsubj,$msgname,$msgdom,$msgcount,$context,$pid);
753: (undef,my $sentmessage) =
754: &packagemsg($msgsubj,$savemsg,undef,$baseurl,$attachmenturl,$recusers,
755: $recudoms,$sentmsgid,undef,undef,$symb,$error);
756: my $status = &store_sent_mail($sentmsgid,$sentmessage,$senderuname,
757: $senderdom);
758: return $status;
759: }
760:
761: sub store_sent_mail {
762: my ($msgid,$message,$senderuname,$senderdom) = @_;
763: if ($senderuname eq '') {
764: $senderuname = $env{'user.name'};
765: }
766: if ($senderdom eq '') {
767: $senderdom = $env{'user.domain'};
768: }
769: my $status =' '.&Apache::lonnet::cput('nohist_email_sent',
770: {$msgid => $message},
771: $senderdom,$senderuname);
772: return $status;
773: }
774:
775: sub store_recipients {
776: my ($subject,$sendername,$senderdom,$reciphash) = @_;
777: my $context = &get_course_context();
778: my $now = time();
779: my $msgcount = &get_uniq();
780: my $recipid =
781: &buildmsgid($now,$subject,$sendername,$senderdom,$msgcount,$context,$$);
782: my %recipinfo = (
783: $recipid => $reciphash,
784: );
785: my $status = &Apache::lonnet::put('nohist_emailrecip',\%recipinfo,
786: $senderdom,$sendername);
787: if ($status eq 'ok') {
788: return ($recipid,$status);
789: } else {
790: return (undef,$status);
791: }
792: }
793:
794: # =============================================================== Folder suffix
795:
796: sub foldersuffix {
797: my $folder=shift;
798: unless ($folder) { return ''; }
799: my $suffix;
800: my %folderhash = &get_user_folders($folder);
801: if (ref($folderhash{$folder}) eq 'HASH') {
802: $suffix = '_'.&escape($folderhash{$folder}{'id'});
803: } else {
804: $suffix = '_'.&escape($folder);
805: }
806: return $suffix;
807: }
808:
809: # ========================================================= User-defined folders
810:
811: sub get_user_folders {
812: my ($folder) = @_;
813: my %userfolders =
814: &Apache::lonnet::dump('email_folders',undef,undef,$folder);
815: my $lock = "\0".'lock_counter'; # locks db while counter incremented
816: my $counter = "\0".'idcount'; # used in suffix for email db files
817: if (defined($userfolders{$lock})) {
818: delete($userfolders{$lock});
819: }
820: if (defined($userfolders{$counter})) {
821: delete($userfolders{$counter});
822: }
823: return %userfolders;
824: }
825:
826: sub secapply {
827: my $rec=shift;
828: my $defaultflag=shift;
829: $rec=~s/\s+//g;
830: $rec=~s/\@/\:/g;
831: my ($adr,$sections_or_groups)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
832: if ($sections_or_groups) {
833: foreach my $item (split(/\;/,$sections_or_groups)) {
834: if (($item eq $env{'request.course.sec'}) ||
835: ($defaultflag && ($item eq '*'))) {
836: return $adr;
837: } elsif ($env{'request.course.groups'}) {
838: my @usersgroups = split(/:/,$env{'request.course.groups'});
839: if (grep(/^\Q$item\E$/,@usersgroups)) {
840: return $adr;
841: }
842: }
843: }
844: } else {
845: return $rec;
846: }
847: return '';
848: }
849:
850: =pod
851:
852: =item * B<decide_receiver($feedurl,$author,$question,$course,$policy,$defaultflag)>:
853:
854: Arguments
855: $feedurl - /res/ url of resource (only need if $author is true)
856: $author,$question,$course,$policy - all true/false parameters
857: if true will attempt to find the addresses of user that should receive
858: this type of feedback (author - feedback to author of resource $feedurl,
859: $question 'Resource Content Questions', $course 'Course Content Question',
860: $policy 'Course Policy')
861: (Additionally it also checks $env for whether the corresponding form.<name>
862: element exists, for ease of use in a html response context)
863:
864: $defaultflag - (internal should be left blank) if true gather addresses
865: that aren't for a section even if I have a section
866: (used for reccursion internally, first we look for
867: addresses for our specific section then we recurse
868: and look for non section addresses)
869:
870: Returns
871: $typestyle - string of html text, describing what addresses were found
872: %to - a hash, which keys are addresses of users to send messages to
873: the keys will look like name:domain
874:
875: =cut
876:
877: sub decide_receiver {
878: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
879: &Apache::lonenc::check_decrypt(\$feedurl);
880: my $typestyle='';
881: my %to=();
882: if ($env{'form.discuss'} eq 'author' ||$author) {
883: $typestyle.='Submitting as Author Feedback<br />';
884: $feedurl=~ m{^/res/($LONCAPA::domain_re)/($LONCAPA::username_re)/};
885: $to{$2.':'.$1}=1;
886: }
887: my $cid = $env{'request.course.id'};
888: if ($env{'form.discuss'} eq 'question' ||$question) {
889: $typestyle.=&mt('Submitting as Question').'<br />';
890: foreach my $item (split(/\,/,$env{'course.'.$cid.'.question.email'})) {
891: my $rec=&secapply($item,$defaultflag);
892: if ($rec) { $to{$rec}=1; }
893: }
894: }
895: if ($env{'form.discuss'} eq 'course' ||$course) {
896: $typestyle.=&mt('Submitting as Comment').'<br />';
897: foreach my $item (split(/\,/,$env{'course.'.$cid.'.comment.email'})) {
898: my $rec=&secapply($item,$defaultflag);
899: if ($rec) { $to{$rec}=1; }
900: }
901: }
902: if ($env{'form.discuss'} eq 'policy' ||$policy) {
903: $typestyle.=&mt('Submitting as Policy Feedback').'<br />';
904: foreach my $item (split(/\,/,$env{'course.'.$cid.'.policy.email'})) {
905: my $rec=&secapply($item,$defaultflag);
906: if ($rec) { $to{$rec}=1; }
907: }
908: }
909: if ((scalar(%to) eq '0') && (!$defaultflag)) {
910: ($typestyle,%to)=
911: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
912: }
913: return ($typestyle,%to);
914: }
915:
916: =pod
917:
918: =back
919:
920: =cut
921:
922: 1;
923: __END__
924:
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