1: # The LearningOnline Network with CAPA
2: # Routines for messaging
3: #
4: # $Id: lonmsg.pm,v 1.214.2.4 2009/01/04 16:21:10 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: 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|^https?\://[^/]+/|/|;
87: $baseurl =&HTML::Entities::encode($baseurl,'<>&"');
88: #remove machine specification
89: $attachmenturl =~ s|^https?\://[^/]+/|/|;
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,$$);
97: }
98: my $result = '<sendername>'.$env{'user.name'}.'</sendername>'.
99: '<senderdomain>'.$env{'user.domain'}.'</senderdomain>'.
100: '<subject>'.$subject.'</subject>'.
101: '<time>'.&Apache::lonlocal::locallocaltime($now).'</time>';
102: if (defined($crsmsgid)) {
103: $result.= '<courseid>'.$course_context.'</courseid>'.
104: '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
105: '<msgid>'.$msgid.'</msgid>'.
106: '<coursemsgid>'.$crsmsgid.'</coursemsgid>'.
107: '<message>'.$message.'</message>';
108: return ($msgid,$result);
109: }
110: $result .= '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
111: '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
112: '<client>'.$ENV{'REMOTE_ADDR'}.'</client>'.
113: '<browsertype>'.$env{'browser.type'}.'</browsertype>'.
114: '<browseros>'.$env{'browser.os'}.'</browseros>'.
115: '<browserversion>'.$env{'browser.version'}.'</browserversion>'.
116: '<browsermathml>'.$env{'browser.mathml'}.'</browsermathml>'.
117: '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
118: '<courseid>'.$course_context.'</courseid>'.
119: '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
120: '<role>'.$env{'request.role'}.'</role>'.
121: '<resource>'.$env{'request.filename'}.'</resource>'.
122: '<msgid>'.$msgid.'</msgid>';
123: if (defined($env{'form.group'})) {
124: $result .= '<group>'.$env{'form.group'}.'</group>';
125: }
126: if (ref($recuser) eq 'ARRAY') {
127: for (my $i=0; $i<@{$recuser}; $i++) {
128: if ($type eq 'dcmail') {
129: my ($username,$email) = split(/:/,$$recuser[$i]);
130: $username = &unescape($username);
131: $email = &unescape($email);
132: $username = &HTML::Entities::encode($username,'<>&"');
133: $email = &HTML::Entities::encode($email,'<>&"');
134: $result .= '<recipient username="'.$username.'">'.
135: $email.'</recipient>';
136: } else {
137: $result .= '<recuser>'.$$recuser[$i].'</recuser>'.
138: '<recdomain>'.$$recdomain[$i].'</recdomain>';
139: }
140: }
141: } else {
142: $result .= '<recuser>'.$recuser.'</recuser>'.
143: '<recdomain>'.$recdomain.'</recdomain>';
144: }
145: $result .= '<message>'.$message.'</message>';
146: if (defined($citation)) {
147: $result.='<citation>'.$citation.'</citation>';
148: }
149: if (defined($baseurl)) {
150: $result.= '<baseurl>'.$baseurl.'</baseurl>';
151: }
152: if (defined($attachmenturl)) {
153: $result.= '<attachmenturl>'.$attachmenturl.'</attachmenturl>';
154: }
155: if (defined($symb)) {
156: $result.= '<symb>'.$symb.'</symb>';
157: if ($course_context ne '') {
158: if ($course_context eq $env{'request.course.id'}) {
159: my $resource_title = &Apache::lonnet::gettitle($symb);
160: if (defined($resource_title)) {
161: $result .= '<resource_title>'.$resource_title.'</resource_title>';
162: }
163: }
164: }
165: }
166: if (defined($recipid)) {
167: $result.= '<recipid>'.$recipid.'</recipid>';
168: }
169: if ($env{'form.can_reply'} eq 'N') {
170: $result .= '<noreplies>1</noreplies>';
171: }
172: if ($env{'form.reply_to_addr'}) {
173: my ($replytoname,$replytodom) = split(/:/,$env{'form.reply_to_addr'});
174: if (!($replytoname eq $env{'user.name'} && $replytodom eq $env{'user.domain'})) {
175: if (&Apache::lonnet::homeserver($replytoname,$replytodom) ne 'no_host') {
176: $result .= '<replytoaddr>'.$env{'form.reply_to_addr'}.'</replytoaddr>';
177: }
178: }
179: }
180: return ($msgid,$result);
181: }
182:
183: sub get_course_context {
184: my $course_context;
185: my $msgkey;
186: if (defined($env{'form.replyid'})) {
187: $msgkey = $env{'form.replyid'};
188: } elsif (defined($env{'form.forwid'})) {
189: $msgkey = $env{'form.forwid'}
190: } elsif (defined($env{'form.multiforwid'})) {
191: $msgkey = $env{'form.multiforwid'};
192: }
193: if ($msgkey ne '') {
194: my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid)=
195: split(/\:/,&unescape($msgkey));
196: $course_context = $origcid;
197: }
198: foreach my $key (keys(%env)) {
199: if ($key=~/^form\.(rep)?rec\_(.*)$/) {
200: my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid) =
201: split(/\:/,&unescape($2));
202: $course_context = $origcid;
203: last;
204: }
205: }
206: if ($course_context eq '') {
207: $course_context = $env{'request.course.id'};
208: }
209: return $course_context;
210: }
211:
212: # ================================================== Unpack message into a hash
213:
214: sub unpackagemsg {
215: my ($message,$notoken,$noattachmentlink)=@_;
216: my %content=();
217: my $parser=HTML::TokeParser->new(\$message);
218: my $token;
219: while ($token=$parser->get_token) {
220: if ($token->[0] eq 'S') {
221: my $entry=$token->[1];
222: my $value=$parser->get_text('/'.$entry);
223: if (($entry eq 'recuser') || ($entry eq 'recdomain')) {
224: push(@{$content{$entry}},$value);
225: } elsif ($entry eq 'recipient') {
226: my $username = $token->[2]{'username'};
227: $username = &HTML::Entities::decode($username,'<>&"');
228: $content{$entry}{$username} = $value;
229: } else {
230: $content{$entry}=$value;
231: }
232: }
233: }
234: if (!exists($content{'recuser'})) { $content{'recuser'} = []; }
235: if (($content{'attachmenturl'}) && (!$noattachmentlink)) {
236: my ($fname)=($content{'attachmenturl'}=~m|/([^/]+)$|);
237: if ($notoken) {
238: $content{'message'}.='<p>'.&mt('Attachment').': <tt>'.$fname.'</tt>';
239: } else {
240: &Apache::lonnet::allowuploaded('/adm/msg',
241: $content{'attachmenturl'});
242: $content{'message'}.='<p>'.&mt('Attachment').
243: ': <a href="'.$content{'attachmenturl'}.'"><tt>'.
244: $fname.'</tt></a>';
245: }
246: }
247: return %content;
248: }
249:
250: # ======================================================= Get info out of msgid
251:
252: sub buildmsgid {
253: my ($now,$subject,$uname,$udom,$msgcount,$course_context,$symb,$error,$pid) = @_;
254: $subject=&escape($subject);
255: $symb = &escape($symb);
256: return(&escape($now.':'.$subject.':'.$uname.':'.
257: $udom.':'.$msgcount.':'.$course_context.':'.$pid.':'.$symb.':'.$error));
258: }
259:
260: sub unpackmsgid {
261: my ($msgid,$folder,$skipstatus,$status_cache)=@_;
262: $msgid=&unescape($msgid);
263: my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$fromcid,
264: $processid,$symb,$error) = split(/\:/,&unescape($msgid));
265: $shortsubj = &unescape($shortsubj);
266: $shortsubj = &HTML::Entities::decode($shortsubj);
267: $symb = &unescape($symb);
268: if (!defined($processid)) { $fromcid = ''; }
269: my %status=();
270: unless ($skipstatus) {
271: if (ref($status_cache)) {
272: $status{$msgid} = $status_cache->{$msgid};
273: } else {
274: my $suffix=&foldersuffix($folder);
275: %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
276: }
277: if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
278: unless ($status{$msgid}) { $status{$msgid}='new'; }
279: }
280: return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid},$fromcid,$symb,$error);
281: }
282:
283:
284: sub sendemail {
285: my ($to,$subject,$body,$to_uname,$to_udom,$user_lh)=@_;
286: my $senderaddress='';
287: my $replytoaddress='';
288: if ($env{'form.can_reply'} eq 'N') {
289: my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
290: my $hostname = &Apache::lonnet::hostname($lonhost);
291: $replytoaddress = 'do-not-reply@'.$hostname;
292: } else {
293: my %senderemails;
294: my $have_sender;
295: if ($env{'form.reply_to_addr'}) {
296: my ($replytoname,$replytodom) = split(/:/,$env{'form.reply_to_addr'});
297: if (!($replytoname eq $env{'user.name'} && $replytodom eq $env{'user.domain'})) {
298: if (&Apache::lonnet::homeserver($replytoname,$replytodom) ne 'no_host') {
299: %senderemails =
300: &Apache::loncommon::getemails($replytoname,$replytodom);
301: $have_sender = 1;
302: }
303: }
304: }
305: if (!$have_sender) {
306: %senderemails=&Apache::loncommon::getemails();
307: }
308: foreach my $type ('permanentemail','critnotification','notification') {
309: if ($senderemails{$type}) {
310: ($senderaddress) = split(/,/,$senderemails{$type});
311: last if ($senderaddress);
312: }
313: }
314: }
315: $body=
316: "*** ".&mt_user($user_lh,'This is an automatic message generated by the LON-CAPA system.')."\n".
317: "*** ".($senderaddress?&mt_user($user_lh,'You can reply to this message'):&mt_user($user_lh,'Please do not reply to this address.')."\n*** ".
318: &mt_user($user_lh,'A reply will not be received by the recipient!'))."\n\n".$body;
319: my $msg = new Mail::Send;
320: $msg->to($to);
321: $msg->subject('[LON-CAPA] '.$subject);
322: if ($replytoaddress) {
323: $msg->add('Reply-to',$replytoaddress);
324: }
325: if ($senderaddress) {
326: $msg->add('From',$senderaddress);
327: }
328: if (my $fh = $msg->open()) {
329: print $fh $body;
330: $fh->close;
331: }
332: }
333:
334: # ==================================================== Send notification emails
335:
336: sub sendnotification {
337: my ($to,$touname,$toudom,$subj,$crit,$text,$msgid)=@_;
338: my $sender=$env{'environment.firstname'}.' '.$env{'environment.lastname'};
339: unless ($sender=~/\w/) {
340: $sender=$env{'user.name'}.':'.$env{'user.domain'};
341: }
342: my $critical=($crit?' critical':'');
343:
344: $text=~s/\<\;/\</gs;
345: $text=~s/\>\;/\>/gs;
346: my $homeserver = &Apache::lonnet::homeserver($touname,$toudom);
347: my $protocol = $Apache::lonnet::protocol{$homeserver};
348: $protocol = 'http' if ($protocol ne 'https');
349: my $url = $protocol.'://'.&Apache::lonnet::hostname($homeserver).
350: '/adm/email?username='.$touname.'&domain='.$toudom;
351: my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,
352: $symb,$error) = &Apache::lonmsg::unpackmsgid($msgid);
353: my ($coursetext,$body,$bodybegin,$bodysubj,$bodyend);
354: my $user_lh = &user_lang($touname,$toudom,$fromcid);
355: if ($fromcid ne '') {
356: $coursetext = "\n".&mt_user($user_lh,'Course').': ';
357: if ($env{'course.'.$fromcid.'.description'} ne '') {
358: $coursetext .= $env{'course.'.$fromcid.'.description'};
359: } else {
360: my %coursehash = &Apache::lonnet::coursedescription($fromcid,);
361: if ($coursehash{'description'} ne '') {
362: $coursetext .= $coursehash{'description'};
363: }
364: }
365: $coursetext .= "\n\n";
366: }
367: my @recipients = split(/,/,$to);
368: $bodybegin = $coursetext.
369: &mt_user($user_lh,
370: 'You received a'.$critical.' message from [_1] in LON-CAPA.',$sender).' ';
371: $bodysubj = &mt_user($user_lh,'The subject is
372:
373: [_1]
374:
375: ',$subj)."\n".
376: '=== '.&mt_user($user_lh,'Excerpt')." ============================================================
377: ";
378: $bodyend = "
379: ========================================================================
380:
381: ".&mt_user($user_lh,'Use
382:
383: [_1]
384:
385: to access the full message.',$url);
386: my %userenv = &Apache::lonnet::get('environment',['notifywithhtml'],$toudom,$touname);
387: my $subject = &mt_user($user_lh,"'New' $critical message from ").$sender;
388:
389: my ($blocked,$blocktext);
390: if (!$crit) {
391: my %setters;
392: my ($startblock,$endblock) =
393: &Apache::loncommon::blockcheck(\%setters,'com',$touname,$toudom);
394: if ($startblock && $endblock) {
395: $blocked = 1;
396: my $showstart = &Apache::lonlocal::locallocaltime($startblock);
397: my $showend = &Apache::lonlocal::locallocaltime($endblock);
398: $blocktext = &mt_user($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);
399: }
400: }
401: if ($userenv{'notifywithhtml'} ne '') {
402: my @htmlexcerpt = split(/,/,$userenv{'notifywithhtml'});
403: foreach my $addr (@recipients) {
404: if ($blocked) {
405: $body = $bodybegin."\n".$blocktext."\n".$bodyend;
406: } else {
407: my $sendtext = $text;
408: if (!grep/^\Q$addr\E/,@htmlexcerpt) {
409: $sendtext =~ s/\<\/*[^\>]+\>//gs;
410: }
411: $body = $bodybegin.$bodysubj.$sendtext.$bodyend;
412: }
413: &sendemail($addr,$subject,$body,$touname,$toudom,$user_lh);
414: }
415: } else {
416: if ($blocked) {
417: $body = $bodybegin."\n".$blocktext."\n".$bodyend;
418: } else {
419: $text =~ s/\<\/*[^\>]+\>//gs;
420: $body = $bodybegin.$bodysubj.$text.$bodyend;
421: }
422: &sendemail($to,$subject,$body,$touname,$toudom,$user_lh);
423: }
424: }
425: # ============================================================= Check for email
426:
427: sub newmail {
428: if ((time-$env{'user.mailcheck.time'})>300) {
429: my %what=&Apache::lonnet::get('email_status',['recnewemail']);
430: &Apache::lonnet::appenv({'user.mailcheck.time'=>time});
431: if ($what{'recnewemail'}>0) { return 1; }
432: }
433: return 0;
434: }
435:
436: # =============================== Automated message to the author of a resource
437:
438: =pod
439:
440: =item * B<author_res_msg($filename, $message)>: Sends message $message to the owner
441: of the resource with the URI $filename.
442:
443: =cut
444:
445: sub author_res_msg {
446: my ($filename,$message)=@_;
447: unless ($message) { return 'empty'; }
448: $filename=&Apache::lonnet::declutter($filename);
449: my ($domain,$author,@dummy)=split(/\//,$filename);
450: my $homeserver=&Apache::lonnet::homeserver($author,$domain);
451: if ($homeserver ne 'no_host') {
452: my $id=unpack("%32C*",$message);
453: $message .= " <p>This error occurred on machine ".
454: $Apache::lonnet::perlvar{'lonHostID'}."</p>";
455: my $msgid;
456: ($msgid,$message)=&packagemsg($filename,$message);
457: return &Apache::lonnet::reply('put:'.$domain.':'.$author.
458: ':nohist_res_msgs:'.
459: &escape($filename.'_'.$id).'='.
460: &escape($message),$homeserver);
461: }
462: return 'no_host';
463: }
464:
465: # =========================================== Retrieve author resource messages
466:
467: sub retrieve_author_res_msg {
468: my $url=shift;
469: $url=&Apache::lonnet::declutter($url);
470: my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
471: my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$domain,$author);
472: my $msgs='';
473: foreach (keys %errormsgs) {
474: if ($_=~/^\Q$url\E\_\d+$/) {
475: my %content=&unpackagemsg($errormsgs{$_});
476: $msgs.='<p><img src="/adm/lonMisc/bomb.gif" /><b>'.
477: $content{'time'}.'</b>: '.$content{'message'}.
478: '<br /></p>';
479: }
480: }
481: return $msgs;
482: }
483:
484:
485: # =============================== Delete all author messages related to one URL
486:
487: sub del_url_author_res_msg {
488: my $url=shift;
489: $url=&Apache::lonnet::declutter($url);
490: my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
491: my @delmsgs=();
492: foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
493: if ($_=~/^\Q$url\E\_\d+$/) {
494: push (@delmsgs,$_);
495: }
496: }
497: return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
498: }
499: # =================================== Clear out all author messages in URL path
500:
501: sub clear_author_res_msg {
502: my $url=shift;
503: $url=&Apache::lonnet::declutter($url);
504: my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
505: my @delmsgs=();
506: foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
507: if ($_=~/^\Q$url\E/) {
508: push (@delmsgs,$_);
509: }
510: }
511: return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
512: }
513: # ================= Return hash with URLs for which there is a resource message
514:
515: sub all_url_author_res_msg {
516: my ($author,$domain)=@_;
517: my %returnhash=();
518: foreach (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
519: $_=~/^(.+)\_\d+/;
520: $returnhash{$1}=1;
521: }
522: return %returnhash;
523: }
524:
525: # ====================================== Add a comment to the User Notes screen
526:
527: sub store_instructor_comment {
528: my ($msg,$uname,$udom) = @_;
529: my $cid = $env{'request.course.id'};
530: my $cnum = $env{'course.'.$cid.'.num'};
531: my $cdom = $env{'course.'.$cid.'.domain'};
532: my $subject= &mt('Record').' ['.$uname.':'.$udom.']';
533: my $result = &user_normal_msg_raw($cnum,$cdom,$subject,$msg);
534: if ($result eq 'ok' || $result eq 'con_delayed') {
535:
536: }
537: return $result;
538: }
539:
540: # ================================================== Critical message to a user
541:
542: sub user_crit_msg_raw {
543: my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage,
544: $nosentstore,$recipid,$attachmenturl)=@_;
545: # Check if allowed missing
546: my ($status,$packed_message);
547: my $msgid='undefined';
548: unless (($message)&&($user)&&($domain)) { $status='empty'; };
549: my $text=$message;
550: my $homeserver=&Apache::lonnet::homeserver($user,$domain);
551: if ($homeserver ne 'no_host') {
552: ($msgid,$packed_message)=&packagemsg($subject,$message,undef,undef,
553: $attachmenturl,undef,undef,undef,undef,undef,
554: undef,undef,$recipid);
555: if ($sendback) { $packed_message.='<sendback>true</sendback>'; }
556: $status=&Apache::lonnet::cput('critical', {$msgid => $packed_message},
557: $domain,$user);
558: if (defined($sentmessage)) {
559: $$sentmessage = $packed_message;
560: }
561: if (!$nosentstore) {
562: (undef,my $packed_message_no_citation) =
563: &packagemsg($subject,$message,undef,undef,$attachmenturl,$user,
564: $domain,$msgid);
565: if ($status eq 'ok' || $status eq 'con_delayed') {
566: &store_sent_mail($msgid,$packed_message_no_citation);
567: }
568: }
569: } else {
570: $status='no_host';
571: }
572:
573: # Notifications
574: my %userenv = &Apache::loncommon::getemails($user,$domain);
575: if ($userenv{'critnotification'}) {
576: &sendnotification($userenv{'critnotification'},$user,$domain,$subject,1,
577: $text,$msgid);
578: }
579: if ($toperm && $userenv{'permanentemail'}) {
580: &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,1,
581: $text,$msgid);
582: }
583: # Log this
584: &Apache::lonnet::logthis(
585: 'Sending critical email '.$msgid.
586: ', log status: '.
587: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
588: $env{'user.home'},
589: 'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status: '
590: .$status));
591: return $status;
592: }
593:
594: # New routine that respects "forward" and calls old routine
595:
596: =pod
597:
598: =item * B<user_crit_msg($user, $domain, $subject, $message, $sendback, $nosentstore,$recipid,$attachmenturl)>:
599: Sends a critical message $message to the $user at $domain. If $sendback
600: is true, a receipt will be sent to the current user when $user receives
601: the message.
602:
603: Additionally it will check if the user has a Forwarding address
604: set, and send the message to that address instead
605:
606: returns
607: - in array context a list of results for each message that was sent
608: - in scalar context a space seperated list of results for each
609: message sent
610:
611: =cut
612:
613: sub user_crit_msg {
614: my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage,
615: $nosentstore,$recipid,$attachmenturl)=@_;
616: my @status;
617: my %userenv = &Apache::lonnet::get('environment',['msgforward'],
618: $domain,$user);
619: my $msgforward=$userenv{'msgforward'};
620: if ($msgforward) {
621: foreach my $addr (split(/\,/,$msgforward)) {
622: my ($forwuser,$forwdomain)=split(/\:/,$addr);
623: push(@status,
624: &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,
625: $sendback,$toperm,$sentmessage,$nosentstore,
626: $recipid,$attachmenturl));
627: }
628: } else {
629: push(@status,
630: &user_crit_msg_raw($user,$domain,$subject,$message,$sendback,
631: $toperm,$sentmessage,$nosentstore,$recipid,
632: $attachmenturl));
633: }
634: if (wantarray) {
635: return @status;
636: }
637: return join(' ',@status);
638: }
639:
640: # =================================================== Critical message received
641:
642: sub user_crit_received {
643: my $msgid=shift;
644: my %message=&Apache::lonnet::get('critical',[$msgid]);
645: my %contents=&unpackagemsg($message{$msgid},1);
646: my $destname = $contents{'sendername'};
647: my $destdom = $contents{'senderdomain'};
648: if ($contents{'replytoaddr'}) {
649: my ($repname,$repdom) = split(/:/,$contents{'replytoaddr'});
650: if (&Apache::lonnet::homeserver($repname,$repdom) ne 'no_host') {
651: $destname = $repname;
652: $destdom = $repdom;
653: }
654: }
655: my $status='rec: '.($contents{'sendback'}?
656: &user_normal_msg($destname,$destdom,&mt('Receipt').': '.$env{'user.name'}.
657: ' '.&mt('at').' '.$env{'user.domain'}.', '.
658: $contents{'subject'},&mt('User').' '.$env{'user.name'}.
659: ' '.&mt('at').' '.$env{'user.domain'}.
660: ' acknowledged receipt of message'."\n".' "'.
661: $contents{'subject'}.'"'."\n".&mt('dated').' '.
662: $contents{'time'}.".\n"
663: ):'no msg req');
664: $status.=' trans: '.
665: &Apache::lonnet::put(
666: 'nohist_email',{$contents{'msgid'} => $message{$msgid}});
667: $status.=' del: '.
668: &Apache::lonnet::del('critical',[$contents{'msgid'}]);
669: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
670: $env{'user.home'},'Received critical message '.
671: $contents{'msgid'}.
672: ', '.$status);
673: return $status;
674: }
675:
676: # ======================================================== Normal communication
677:
678: sub user_normal_msg_raw {
679: my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
680: $toperm,$currid,$newid,$sentmessage,$crsmsgid,$symb,$restitle,
681: $error,$nosentstore,$recipid)=@_;
682: # Check if allowed missing
683: my ($status,$packed_message);
684: my $msgid='undefined';
685: my $text=$message;
686: unless (($message)&&($user)&&($domain)) { $status='empty'; };
687: my $homeserver=&Apache::lonnet::homeserver($user,$domain);
688: if ($homeserver ne 'no_host') {
689: ($msgid,$packed_message)=
690: &packagemsg($subject,$message,$citation,$baseurl,
691: $attachmenturl,$user,$domain,$currid,
692: undef,$crsmsgid,$symb,$error,$recipid);
693:
694: # Store in user folder
695: $status=
696: &Apache::lonnet::cput('nohist_email',{$msgid => $packed_message},
697: $domain,$user);
698: # Save new message received time
699: &Apache::lonnet::put
700: ('email_status',{'recnewemail'=>time},$domain,$user);
701: # Into sent-mail folder if sent mail storage required
702: if (!$nosentstore) {
703: (undef,my $packed_message_no_citation) =
704: &packagemsg($subject,$message,undef,$baseurl,$attachmenturl,
705: $user,$domain,$currid,undef,$crsmsgid,$symb,$error);
706: if ($status eq 'ok' || $status eq 'con_delayed') {
707: &store_sent_mail($msgid,$packed_message_no_citation);
708: }
709: }
710: if (ref($newid) eq 'SCALAR') {
711: $$newid = $msgid;
712: }
713: if (ref($sentmessage) eq 'SCALAR') {
714: $$sentmessage = $packed_message;
715: }
716: # Notifications
717: my %userenv = &Apache::loncommon::getemails($user,$domain);
718: if ($userenv{'notification'}) {
719: &sendnotification($userenv{'notification'},$user,$domain,$subject,0,
720: $text,$msgid);
721: }
722: if ($toperm && $userenv{'permanentemail'}) {
723: if ((!$userenv{'notification'}) || ($userenv{'notification'} ne $userenv{'permanentemail'})) {
724: &sendnotification($userenv{'permanentemail'},$user,$domain,$subject,0,
725: $text,$msgid);
726: }
727: }
728: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
729: $env{'user.home'},
730: 'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
731: } else {
732: $status='no_host';
733: }
734: return $status;
735: }
736:
737: # New routine that respects "forward" and calls old routine
738:
739: =pod
740:
741: =item * B<user_normal_msg($user, $domain, $subject, $message, $citation,
742: $baseurl, $attachmenturl, $toperm, $sentmessage, $symb, $restitle,
743: $error,$nosentstore,$recipid)>:
744: Sends a message to the $user at $domain, with subject $subject and message $message.
745:
746: Additionally it will check if the user has a Forwarding address
747: set, and send the message to that address instead
748:
749: returns
750: - in array context a list of results for each message that was sent
751: - in scalar context a space seperated list of results for each
752: message sent
753:
754: =cut
755:
756: sub user_normal_msg {
757: my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
758: $toperm,$sentmessage,$symb,$restitle,$error,$nosentstore,$recipid)=@_;
759: my @status;
760: my %userenv = &Apache::lonnet::get('environment',['msgforward'],
761: $domain,$user);
762: my $msgforward=$userenv{'msgforward'};
763: if ($msgforward) {
764: foreach (split(/\,/,$msgforward)) {
765: my ($forwuser,$forwdomain)=split(/\:/,$_);
766: push(@status,
767: &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
768: $citation,$baseurl,$attachmenturl,$toperm,
769: undef,undef,$sentmessage,undef,$symb,
770: $restitle,$error,$nosentstore,$recipid));
771: }
772: } else {
773: push(@status,&user_normal_msg_raw($user,$domain,$subject,$message,
774: $citation,$baseurl,$attachmenturl,$toperm,
775: undef,undef,$sentmessage,undef,$symb,
776: $restitle,$error,$nosentstore,$recipid));
777: }
778: if (wantarray) {
779: return @status;
780: }
781: return join(' ',@status);
782: }
783:
784: sub process_sent_mail {
785: my ($msgsubj,$subj_prefix,$numsent,$stamp,$msgname,$msgdom,$msgcount,$context,$pid,$savemsg,$recusers,$recudoms,$baseurl,$attachmenturl,$symb,$error,$senderuname,$senderdom,$recipid) = @_;
786: my $sentsubj;
787: if ($numsent > 1) {
788: $sentsubj = $subj_prefix.' ('.$numsent.' sent) '.$msgsubj;
789: } else {
790: if ($subj_prefix) {
791: $sentsubj = $subj_prefix.' ';
792: }
793: $sentsubj .= $msgsubj;
794: }
795: $sentsubj = &HTML::Entities::encode($sentsubj,'<>&"');
796: my $sentmsgid =
797: &buildmsgid($stamp,$sentsubj,$msgname,$msgdom,$msgcount,$context,$pid);
798: (undef,my $sentmessage) =
799: &packagemsg($msgsubj,$savemsg,undef,$baseurl,$attachmenturl,$recusers,
800: $recudoms,$sentmsgid,undef,undef,$symb,$error,$recipid);
801: my $status = &store_sent_mail($sentmsgid,$sentmessage,$senderuname,
802: $senderdom);
803: return $status;
804: }
805:
806: sub store_sent_mail {
807: my ($msgid,$message,$senderuname,$senderdom) = @_;
808: if ($senderuname eq '') {
809: $senderuname = $env{'user.name'};
810: }
811: if ($senderdom eq '') {
812: $senderdom = $env{'user.domain'};
813: }
814: my $status =' '.&Apache::lonnet::cput('nohist_email_sent',
815: {$msgid => $message},
816: $senderdom,$senderuname);
817: return $status;
818: }
819:
820: sub store_recipients {
821: my ($subject,$sendername,$senderdom,$reciphash) = @_;
822: my $context = &get_course_context();
823: my $now = time();
824: my $msgcount = &get_uniq();
825: my $recipid =
826: &buildmsgid($now,$subject,$sendername,$senderdom,$msgcount,$context,$$);
827: my %recipinfo = (
828: $recipid => $reciphash,
829: );
830: my $status = &Apache::lonnet::put('nohist_emailrecip',\%recipinfo,
831: $senderdom,$sendername);
832: if ($status eq 'ok') {
833: return ($recipid,$status);
834: } else {
835: return (undef,$status);
836: }
837: }
838:
839: # =============================================================== Folder suffix
840:
841: sub foldersuffix {
842: my $folder=shift;
843: unless ($folder) { return ''; }
844: my $suffix;
845: my %folderhash = &get_user_folders($folder);
846: if (ref($folderhash{$folder}) eq 'HASH') {
847: $suffix = '_'.&escape($folderhash{$folder}{'id'});
848: } else {
849: $suffix = '_'.&escape($folder);
850: }
851: return $suffix;
852: }
853:
854: # ========================================================= User-defined folders
855:
856: sub get_user_folders {
857: my ($folder) = @_;
858: my %userfolders =
859: &Apache::lonnet::dump('email_folders',undef,undef,$folder);
860: my $lock = "\0".'lock_counter'; # locks db while counter incremented
861: my $counter = "\0".'idcount'; # used in suffix for email db files
862: if (defined($userfolders{$lock})) {
863: delete($userfolders{$lock});
864: }
865: if (defined($userfolders{$counter})) {
866: delete($userfolders{$counter});
867: }
868: return %userfolders;
869: }
870:
871: sub secapply {
872: my $rec=shift;
873: my $defaultflag=shift;
874: $rec=~s/\s+//g;
875: $rec=~s/\@/\:/g;
876: my ($adr,$sections_or_groups)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
877: if ($sections_or_groups) {
878: foreach my $item (split(/\;/,$sections_or_groups)) {
879: if (($item eq $env{'request.course.sec'}) ||
880: ($defaultflag && ($item eq '*'))) {
881: return $adr;
882: } elsif ($env{'request.course.groups'}) {
883: my @usersgroups = split(/:/,$env{'request.course.groups'});
884: if (grep(/^\Q$item\E$/,@usersgroups)) {
885: return $adr;
886: }
887: }
888: }
889: } else {
890: return $rec;
891: }
892: return '';
893: }
894:
895: =pod
896:
897: =item * B<decide_receiver($feedurl,$author,$question,$course,$policy,$defaultflag)>:
898:
899: Arguments
900: $feedurl - /res/ url of resource (only need if $author is true)
901: $author,$question,$course,$policy - all true/false parameters
902: if true will attempt to find the addresses of user that should receive
903: this type of feedback (author - feedback to author of resource $feedurl,
904: $question 'Resource Content Questions', $course 'Course Content Question',
905: $policy 'Course Policy')
906: (Additionally it also checks $env for whether the corresponding form.<name>
907: element exists, for ease of use in a html response context)
908:
909: $defaultflag - (internal should be left blank) if true gather addresses
910: that aren't for a section even if I have a section
911: (used for reccursion internally, first we look for
912: addresses for our specific section then we recurse
913: and look for non section addresses)
914:
915: Returns
916: $typestyle - string of html text, describing what addresses were found
917: %to - a hash, which keys are addresses of users to send messages to
918: the keys will look like name:domain
919:
920: =cut
921:
922: sub decide_receiver {
923: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
924: &Apache::lonenc::check_decrypt(\$feedurl);
925: my $typestyle='';
926: my %to=();
927: if ($env{'form.discuss'} eq 'author' ||$author) {
928: $typestyle.='Submitting as Author Feedback<br />';
929: $feedurl=~ m{^/res/($LONCAPA::domain_re)/($LONCAPA::username_re)/};
930: $to{$2.':'.$1}=1;
931: }
932: my $cid = $env{'request.course.id'};
933: if ($env{'form.discuss'} eq 'question' ||$question) {
934: $typestyle.=&mt('Submitting as Question').'<br />';
935: foreach my $item (split(/\,/,$env{'course.'.$cid.'.question.email'})) {
936: my $rec=&secapply($item,$defaultflag);
937: if ($rec) { $to{$rec}=1; }
938: }
939: }
940: if ($env{'form.discuss'} eq 'course' ||$course) {
941: $typestyle.=&mt('Submitting as Comment').'<br />';
942: foreach my $item (split(/\,/,$env{'course.'.$cid.'.comment.email'})) {
943: my $rec=&secapply($item,$defaultflag);
944: if ($rec) { $to{$rec}=1; }
945: }
946: }
947: if ($env{'form.discuss'} eq 'policy' ||$policy) {
948: $typestyle.=&mt('Submitting as Policy Feedback').'<br />';
949: foreach my $item (split(/\,/,$env{'course.'.$cid.'.policy.email'})) {
950: my $rec=&secapply($item,$defaultflag);
951: if ($rec) { $to{$rec}=1; }
952: }
953: }
954: if ((scalar(%to) eq '0') && (!$defaultflag)) {
955: ($typestyle,%to)=
956: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
957: }
958: return ($typestyle,%to);
959: }
960:
961: sub user_lang {
962: my ($touname,$toudom,$fromcid) = @_;
963: my @userlangs;
964: if (($fromcid ne '') && ($env{'course.'.$fromcid.'.languages'} ne '')) {
965: @userlangs=(@userlangs,split(/\s*(\,|\;|\:)\s*/,
966: $env{'course.'.$fromcid.'.languages'}));
967: } else {
968: my %langhash = &Apache::loncommon::getlangs($toudom,$touname);
969: if ($langhash{'languages'} ne '') {
970: @userlangs = split(/\s*(\,|\;|\:)\s*/,$langhash{'languages'});
971: } else {
972: my %domdefs = &Apache::lonnet::get_domain_defaults($toudom);
973: if ($domdefs{'lang_def'} ne '') {
974: @userlangs = ($domdefs{'lang_def'});
975: }
976: }
977: }
978: my @languages=&Apache::lonlocal::get_genlanguages(@userlangs);
979: my $user_lh = Apache::localize->get_handle(@languages);
980: return $user_lh;
981: }
982:
983: =pod
984:
985: =back
986:
987: =cut
988:
989: 1;
990: __END__
991:
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