1: # The LearningOnline Network with CAPA
2: # Routines for messaging
3: #
4: # $Id: lonmsg.pm,v 1.247 2021/11/30 15:55:37 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">$email</recipient> in stored
53: Domain Coordinator e-mail for the storage of information about
54: recipients of the message/e-mail.
55:
56: =head1 SUBROUTINES
57:
58: =over
59:
60: =pod
61:
62: =item packagemsg()
63:
64: Package
65:
66: =item get_course_context()
67:
68: =item unpackagemsg()
69:
70: Unpack message into a hash
71:
72: =item buildmsgid()
73:
74: Get info out of msgid
75:
76: =item unpackmsgid()
77:
78: =item sendemail()
79:
80: =item sendnotification()
81:
82: Send notification emails
83:
84: =item newmail()
85:
86: Check for email
87:
88: =item author_res_msg()
89:
90: Automated message to the author of a resource
91:
92: =item * B<author_res_msg($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, $permresults)>:
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,$recipid,$permresults)>:
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
198:
199: =cut
200:
201: use strict;
202: use Apache::lonnet;
203: use Apache::loncommon;
204: use HTML::TokeParser();
205: use Apache::lonlocal;
206: use HTML::Entities;
207: use Encode;
208: use LONCAPA qw(:DEFAULT :match);
209:
210: {
211: my $uniq;
212: sub get_uniq {
213: $uniq++;
214: return $uniq;
215: }
216: }
217:
218:
219:
220: sub packagemsg {
221: my ($subject,$message,$citation,$baseurl,$attachmenturl,
222: $recuser,$recdomain,$msgid,$type,$crsmsgid,$symb,$error,$recipid)=@_;
223: $message =&HTML::Entities::encode($message,'<>&"');
224: $citation=&HTML::Entities::encode($citation,'<>&"');
225: $subject =&HTML::Entities::encode($subject,'<>&"');
226: #remove machine specification
227: $baseurl =~ s|^https?://[^/]+/|/|;
228: $baseurl =&HTML::Entities::encode($baseurl,'<>&"');
229: #remove machine specification
230: $attachmenturl =~ s|^https?://[^/]+/|/|;
231: $attachmenturl =&HTML::Entities::encode($attachmenturl,'<>&"');
232: my $course_context = &get_course_context();
233: my $now=time;
234: my $ip = &Apache::lonnet::get_requestor_ip();
235: my $msgcount = &get_uniq();
236: unless(defined($msgid)) {
237: $msgid = &buildmsgid($now,$subject,$env{'user.name'},$env{'user.domain'},
238: $msgcount,$course_context,$symb,$error,$$);
239: }
240: my $result = '<sendername>'.$env{'user.name'}.'</sendername>'.
241: '<senderdomain>'.$env{'user.domain'}.'</senderdomain>'.
242: '<subject>'.$subject.'</subject>'.
243: '<time>'.&Apache::lonlocal::locallocaltime($now).'</time>';
244: if (defined($crsmsgid)) {
245: $result.= '<courseid>'.$course_context.'</courseid>'.
246: '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
247: '<msgid>'.$msgid.'</msgid>'.
248: '<coursemsgid>'.$crsmsgid.'</coursemsgid>'.
249: '<message>'.$message.'</message>';
250: return ($msgid,$result);
251: }
252: $result .= '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
253: '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
254: '<client>'.$ip.'</client>'.
255: '<browsertype>'.$env{'browser.type'}.'</browsertype>'.
256: '<browseros>'.$env{'browser.os'}.'</browseros>'.
257: '<browserversion>'.$env{'browser.version'}.'</browserversion>'.
258: '<browsermathml>'.$env{'browser.mathml'}.'</browsermathml>'.
259: '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
260: '<courseid>'.$course_context.'</courseid>'.
261: '<coursesec>'.$env{'request.course.sec'}.'</coursesec>'.
262: '<role>'.$env{'request.role'}.'</role>'.
263: '<resource>'.$env{'request.filename'}.'</resource>'.
264: '<msgid>'.$msgid.'</msgid>';
265: if (defined($env{'form.group'})) {
266: $result .= '<group>'.$env{'form.group'}.'</group>';
267: }
268: if (ref($recuser) eq 'ARRAY') {
269: for (my $i=0; $i<@{$recuser}; $i++) {
270: if ($type eq 'dcmail') {
271: my ($username,$email) = split(/:/,$$recuser[$i]);
272: $username = &unescape($username);
273: $email = &unescape($email);
274: $username = &HTML::Entities::encode($username,'<>&"');
275: $email = &HTML::Entities::encode($email,'<>&"');
276: $result .= '<recipient username="'.$username.'">'.
277: $email.'</recipient>';
278: } else {
279: $result .= '<recuser>'.$$recuser[$i].'</recuser>'.
280: '<recdomain>'.$$recdomain[$i].'</recdomain>';
281: }
282: }
283: } else {
284: $result .= '<recuser>'.$recuser.'</recuser>'.
285: '<recdomain>'.$recdomain.'</recdomain>';
286: }
287: $result .= '<message>'.$message.'</message>';
288: if (defined($citation)) {
289: $result.='<citation>'.$citation.'</citation>';
290: }
291: if (defined($baseurl)) {
292: $result.= '<baseurl>'.$baseurl.'</baseurl>';
293: }
294: if (defined($attachmenturl)) {
295: $result.= '<attachmenturl>'.$attachmenturl.'</attachmenturl>';
296: }
297: if (defined($symb)) {
298: $result.= '<symb>'.$symb.'</symb>';
299: if ($course_context ne '') {
300: if ($course_context eq $env{'request.course.id'}) {
301: my $resource_title = &Apache::lonnet::gettitle($symb);
302: if (defined($resource_title)) {
303: $result .= '<resource_title>'.$resource_title.'</resource_title>';
304: }
305: }
306: }
307: }
308: if (defined($recipid)) {
309: $result.= '<recipid>'.$recipid.'</recipid>';
310: }
311: if ($env{'form.can_reply'} eq 'N') {
312: $result .= '<noreplies>1</noreplies>';
313: }
314: if ($env{'form.reply_to_addr'}) {
315: my ($replytoname,$replytodom) = split(/:/,$env{'form.reply_to_addr'});
316: if (!($replytoname eq $env{'user.name'} && $replytodom eq $env{'user.domain'})) {
317: if (&Apache::lonnet::homeserver($replytoname,$replytodom) ne 'no_host') {
318: $result .= '<replytoaddr>'.$env{'form.reply_to_addr'}.'</replytoaddr>';
319: }
320: }
321: }
322: return ($msgid,$result);
323: }
324:
325: sub get_course_context {
326: my $course_context;
327: my $msgkey;
328: if (defined($env{'form.replyid'})) {
329: $msgkey = $env{'form.replyid'};
330: } elsif (defined($env{'form.forwid'})) {
331: $msgkey = $env{'form.forwid'}
332: } elsif (defined($env{'form.multiforwid'})) {
333: $msgkey = $env{'form.multiforwid'};
334: }
335: if ($msgkey ne '') {
336: my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid)=
337: split(/\:/,&unescape($msgkey));
338: $course_context = $origcid;
339: }
340: foreach my $key (keys(%env)) {
341: if ($key=~/^form\.(rep)?rec\_(.*)$/) {
342: my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$origcid) =
343: split(/\:/,&unescape($2));
344: $course_context = $origcid;
345: last;
346: }
347: }
348: if ($course_context eq '') {
349: $course_context = $env{'request.course.id'};
350: }
351: return $course_context;
352: }
353:
354:
355: sub unpackagemsg {
356: my ($message,$notoken,$noattachmentlink)=@_;
357: my %content=();
358: my $parser=HTML::TokeParser->new(\$message);
359: my $token;
360: while ($token=$parser->get_token) {
361: if ($token->[0] eq 'S') {
362: my $entry=$token->[1];
363: my $value=$parser->get_text('/'.$entry);
364: if (($entry eq 'recuser') || ($entry eq 'recdomain')) {
365: push(@{$content{$entry}},$value);
366: } elsif ($entry eq 'recipient') {
367: my $username = $token->[2]{'username'};
368: $username = &HTML::Entities::decode($username,'<>&"');
369: $content{$entry}{$username} = $value;
370: } else {
371: $content{$entry}=$value;
372: }
373: }
374: }
375: if (!exists($content{'recuser'})) { $content{'recuser'} = []; }
376: if (($content{'attachmenturl'}) && (!$noattachmentlink)) {
377: my ($fname)=($content{'attachmenturl'}=~m|/([^/]+)$|);
378: if ($notoken) {
379: $content{'message'}.='<p>'.&mt('Attachment').': <tt>'.$fname.'</tt>';
380: } else {
381: &Apache::lonnet::allowuploaded('/adm/msg',
382: $content{'attachmenturl'});
383: $content{'message'}.='<p>'.&mt('Attachment').
384: ': <a href="'.$content{'attachmenturl'}.'"><tt>'.
385: $fname.'</tt></a>';
386: }
387: }
388: return %content;
389: }
390:
391:
392: sub buildmsgid {
393: my ($now,$subject,$uname,$udom,$msgcount,$course_context,$symb,$error,$pid) = @_;
394: $subject=&escape($subject);
395: $symb = &escape($symb);
396: return(&escape($now.':'.$subject.':'.$uname.':'.
397: $udom.':'.$msgcount.':'.$course_context.':'.$pid.':'.$symb.':'.$error));
398: }
399:
400: sub unpackmsgid {
401: my ($msgid,$folder,$skipstatus,$status_cache,$onlycid)=@_;
402: $msgid=&unescape($msgid);
403: my ($sendtime,$shortsubj,$fromname,$fromdomain,$count,$fromcid,
404: $processid,$symb,$error) = split(/\:/,&unescape($msgid));
405: if (!defined($processid)) { $fromcid = ''; }
406: if (($onlycid) && ($onlycid ne $fromcid)) {
407: return ($sendtime,'',$fromname,$fromdomain,'',$fromcid,'',$error);
408: }
409: $shortsubj = &unescape($shortsubj);
410: $shortsubj = &HTML::Entities::decode($shortsubj);
411: $symb = &unescape($symb);
412: my %status=();
413: unless ($skipstatus) {
414: if (ref($status_cache)) {
415: $status{$msgid} = $status_cache->{$msgid};
416: } else {
417: my $suffix=&foldersuffix($folder);
418: %status=&Apache::lonnet::get('email_status'.$suffix,[$msgid]);
419: }
420: if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
421: unless ($status{$msgid}) { $status{$msgid}='new'; }
422: }
423: return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid},$fromcid,$symb,$error);
424: }
425:
426:
427: sub sendemail {
428: my ($to,$subject,$body,$to_uname,$to_udom,$user_lh,$attachmenturl)=@_;
429: my $senderaddress='';
430: my $replytoaddress='';
431: my $msgsent;
432: if ($env{'form.can_reply'} eq 'N') {
433: my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
434: my $hostname = &Apache::lonnet::hostname($lonhost);
435: $replytoaddress = 'do-not-reply@'.$hostname;
436: } else {
437: my %senderemails;
438: my $have_sender;
439: if ($env{'form.reply_to_addr'}) {
440: my ($replytoname,$replytodom) = split(/:/,$env{'form.reply_to_addr'});
441: if (!($replytoname eq $env{'user.name'} && $replytodom eq $env{'user.domain'})) {
442: if (&Apache::lonnet::homeserver($replytoname,$replytodom) ne 'no_host') {
443: %senderemails =
444: &Apache::loncommon::getemails($replytoname,$replytodom);
445: $have_sender = 1;
446: }
447: }
448: }
449: if (!$have_sender) {
450: %senderemails=&Apache::loncommon::getemails();
451: }
452: foreach my $type ('permanentemail','critnotification','notification') {
453: if ($senderemails{$type}) {
454: ($senderaddress) = split(/,/,$senderemails{$type});
455: last if ($senderaddress);
456: }
457: }
458: }
459: $body=
460: "*** ".&mt_user($user_lh,'This is an automatic e-mail generated by the LON-CAPA system.')."\n".
461: "*** ".($senderaddress?&mt_user($user_lh,'You can reply to this e-mail'):&mt_user($user_lh,'Please do not reply to this address.')."\n*** ".
462: &mt_user($user_lh,'A reply will not be received by the recipient!'))."\n\n".$body;
463:
464: $attachmenturl = &Apache::lonnet::filelocation("",$attachmenturl);
465: my $filesize = (stat($attachmenturl))[7];
466: if ($filesize > 1048576) {
467: # Don't send if it exceeds 1 MB.
468: print '<p><span class="LC_error">'
469: .&mt('Email not sent. Attachment exceeds permitted length.')
470: .'</span><br /></p>';
471: } else {
472: # Otherwise build and send the email
473: $subject = '[LON-CAPA] '.$subject;
474: &Apache::loncommon::mime_email($senderaddress,$replytoaddress,$to,
475: $subject,$body,'','',$attachmenturl,'','');
476: $msgsent = 1;
477: }
478: return $msgsent;
479: }
480:
481: # ==================================================== Send notification emails
482:
483: sub sendnotification {
484: my ($to,$touname,$toudom,$subj,$crit,$text,$msgid,$attachmenturl)=@_;
485: my $sender=$env{'environment.firstname'}.' '.$env{'environment.lastname'};
486: unless ($sender=~/\w/) {
487: $sender=$env{'user.name'}.':'.$env{'user.domain'};
488: }
489: my $critical=($crit?' critical':'');
490: my $numsent = 0;
491:
492: $text=~s/\<\;/\</gs;
493: $text=~s/\>\;/\>/gs;
494: my $homeserver = &Apache::lonnet::homeserver($touname,$toudom);
495: my $hostname = &Apache::lonnet::hostname($homeserver);
496: my $protocol = $Apache::lonnet::protocol{$homeserver};
497: $protocol = 'http' if ($protocol ne 'https');
498: #FIXME
499: my $url = $protocol.'://'.$hostname.
500: '/adm/email?username='.$touname.'&domain='.$toudom.
501: '&display='.&escape($msgid);
502: my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,
503: $symb,$error) = &Apache::lonmsg::unpackmsgid($msgid);
504: my ($coursetext,$body,$bodybegin,$bodysubj,$bodyend);
505: my $user_lh = &Apache::loncommon::user_lang($touname,$toudom,$fromcid);
506: if ($fromcid ne '') {
507: $coursetext = "\n".&mt_user($user_lh,'Course').': ';
508: if ($env{'course.'.$fromcid.'.description'} ne '') {
509: $coursetext .= $env{'course.'.$fromcid.'.description'};
510: } else {
511: my %coursehash = &Apache::lonnet::coursedescription($fromcid,);
512: if ($coursehash{'description'} ne '') {
513: $coursetext .= $coursehash{'description'};
514: }
515: }
516: $coursetext .= "\n\n";
517: }
518: my @recipients = split(/,/,$to);
519: $bodybegin = $coursetext.
520: &mt_user($user_lh,
521: 'You received a'.$critical.' message from [_1] in LON-CAPA.',$sender).' ';
522: $bodysubj = &mt_user($user_lh,'The subject is
523:
524: [_1]
525:
526: ',$subj)."\n".
527: '=== '.&mt_user($user_lh,'Excerpt')." ============================================================
528: ";
529: $bodyend = "
530: ========================================================================
531:
532: ".&mt_user($user_lh,'Use
533:
534: [_1]
535:
536: to access the full message.',$url);
537: my %userenv = &Apache::lonnet::get('environment',['notifywithhtml'],$toudom,$touname);
538: my $subject = &mt_user($user_lh,"'New'$critical message from [_1]",$sender);
539: unless ($subj eq '') {
540: $subject = $subj;
541: }
542:
543: my ($blocked,$blocktext,$clientip);
544: $clientip = &Apache::lonnet::get_requestor_ip();
545: if (!$crit) {
546: my %setters;
547: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
548: &Apache::loncommon::blockcheck(\%setters,'com',$clientip,$touname,$toudom);
549: if ($startblock && $endblock) {
550: $blocked = 1;
551: my $showstart = &Apache::lonlocal::locallocaltime($startblock);
552: my $showend = &Apache::lonlocal::locallocaltime($endblock);
553: $blocktext = &mt_user($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);
554: } elsif ($by_ip) {
555: $blocked = 1;
556: $blocktext = &mt_user($user_lh,'LON-CAPA messages sent to you will be inaccessible from your IP address [_1], because communication is being blocked for certain IP address(es).',$clientip);
557: }
558: }
559: if ($userenv{'notifywithhtml'} ne '') {
560: my @htmlexcerpt = split(/,/,$userenv{'notifywithhtml'});
561: my $htmlfree = &make_htmlfree($text);
562: foreach my $addr (@recipients) {
563: if ($blocked) {
564: $body = $bodybegin."\n".$blocktext."\n".$bodyend;
565: } else {
566: my $sendtext;
567: if (!grep/^\Q$addr\E/,@htmlexcerpt) {
568: $sendtext = $htmlfree;
569: } else {
570: $sendtext = $text;
571: }
572: $body = $bodybegin.$bodysubj.$sendtext.$bodyend;
573: }
574: if (&sendemail($addr,$subject,$body,$touname,$toudom,$user_lh,$attachmenturl)) {
575: $numsent ++;
576: }
577: }
578: } else {
579: if ($blocked) {
580: $body = $bodybegin."\n".$blocktext."\n".$bodyend;
581: } else {
582: my $htmlfree = &make_htmlfree($text);
583: $body = $bodybegin.$bodysubj.$htmlfree.$bodyend;
584: }
585: if (&sendemail($to,$subject,$body,$touname,$toudom,$user_lh,$attachmenturl)) {
586: $numsent ++;
587: }
588: }
589: return $numsent;
590: }
591:
592: sub make_htmlfree {
593: my ($text) = @_;
594: $text =~ s/\<\/*[^\>]+\>//gs;
595: $text = &HTML::Entities::decode($text);
596: $text = &Encode::encode('utf8',$text);
597: return $text;
598: }
599:
600: sub mynewmail{
601: &newmail();
602: return $env{'user.mailcheck.lastnewmessagetime'} > $env{'user.mailcheck.lastvisit'};
603: }
604:
605:
606: sub newmail {
607: if ((time-$env{'user.mailcheck.time'})>300) {
608: my %what=&Apache::lonnet::get('email_status',['recnewemail']);
609: &Apache::lonnet::appenv({'user.mailcheck.time'=>time});
610: &Apache::lonnet::appenv({'user.mailcheck.lastnewmessagetime'=> $what{'recnewemail'}});
611: if ($what{'recnewemail'}>0) { return 1; }
612: }
613: return 0;
614: }
615:
616:
617:
618: sub author_res_msg {
619: my ($filename,$message)=@_;
620: unless ($message) { return 'empty'; }
621: $filename=&Apache::lonnet::declutter($filename);
622: my ($domain,$author,@dummy)=split(/\//,$filename);
623: my $homeserver=&Apache::lonnet::homeserver($author,$domain);
624: if ($homeserver ne 'no_host') {
625: my $id=unpack("%32C*",$message);
626: $message .= " <p>This error occurred on machine ".
627: $Apache::lonnet::perlvar{'lonHostID'}."</p>";
628: my $msgid;
629: ($msgid,$message)=&packagemsg($filename,$message);
630: return &Apache::lonnet::reply('put:'.$domain.':'.$author.
631: ':nohist_res_msgs:'.
632: &escape($filename.'_'.$id).'='.
633: &escape($message),$homeserver);
634: }
635: return 'no_host';
636: }
637:
638:
639:
640: sub retrieve_author_res_msg {
641: my $url=shift;
642: $url=&Apache::lonnet::declutter($url);
643: my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
644: my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$domain,$author);
645: my $msgs='';
646: foreach my $msg (keys(%errormsgs)) {
647: if ($msg =~ /^\Q$url\E\_\d+$/) {
648: my %content=&unpackagemsg($errormsgs{$msg});
649: $msgs.='<p><img src="/adm/lonMisc/bomb.gif" /><b>'.
650: $content{'time'}.'</b>: '.$content{'message'}.
651: '<br /></p>';
652: }
653: }
654: return $msgs;
655: }
656:
657:
658:
659:
660:
661: sub del_url_author_res_msg {
662: my $url=shift;
663: $url=&Apache::lonnet::declutter($url);
664: my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
665: my @delmsgs=();
666: foreach my $msg (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
667: if ($msg =~ /^\Q$url\E\_\d+$/) {
668: push (@delmsgs,$msg);
669: }
670: }
671: return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
672: }
673:
674:
675: sub clear_author_res_msg {
676: my $url=shift;
677: $url=&Apache::lonnet::declutter($url);
678: my ($domain,$author)=($url=~/^($match_domain)\/($match_username)\//);
679: my @delmsgs=();
680: foreach my $msg (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
681: if ($msg =~ /^\Q$url\E/) {
682: push (@delmsgs,$msg);
683: }
684: }
685: return &Apache::lonnet::del('nohist_res_msgs',\@delmsgs,$domain,$author);
686: }
687:
688:
689:
690: sub all_url_author_res_msg {
691: my ($author,$domain)=@_;
692: my %returnhash=();
693: foreach my $msg (&Apache::lonnet::getkeys('nohist_res_msgs',$domain,$author)) {
694: $msg =~ /^(.+)\_\d+/;
695: $returnhash{$1}=1;
696: }
697: return %returnhash;
698: }
699:
700:
701: sub store_instructor_comment {
702: my ($msg,$uname,$udom) = @_;
703: my $cid = $env{'request.course.id'};
704: my $cnum = $env{'course.'.$cid.'.num'};
705: my $cdom = $env{'course.'.$cid.'.domain'};
706: my $subject= &mt('Record').' ['.$uname.':'.$udom.']';
707: my $result = &user_normal_msg_raw($cnum,$cdom,$subject,$msg);
708: if ($result eq 'ok' || $result eq 'con_delayed') {
709:
710: }
711: return $result;
712: }
713:
714:
715: sub user_crit_msg_raw {
716: my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage,
717: $nosentstore,$recipid,$attachmenturl,$permresults)=@_;
718: # Check if allowed missing
719: my ($status,$packed_message);
720: my $msgid='undefined';
721: unless (($message)&&($user)&&($domain)) { $status='empty'; };
722: my $text=$message;
723: my $homeserver=&Apache::lonnet::homeserver($user,$domain);
724: if ($homeserver ne 'no_host') {
725: ($msgid,$packed_message)=&packagemsg($subject,$message,undef,undef,
726: $attachmenturl,undef,undef,undef,undef,undef,
727: undef,undef,$recipid);
728: if ($sendback) { $packed_message.='<sendback>true</sendback>'; }
729: $status=&Apache::lonnet::cput('critical', {$msgid => $packed_message},
730: $domain,$user);
731: if (defined($sentmessage)) {
732: $$sentmessage = $packed_message;
733: }
734: if (!$nosentstore) {
735: (undef,my $packed_message_no_citation) =
736: &packagemsg($subject,$message,undef,undef,$attachmenturl,$user,
737: $domain,$msgid);
738: if ($status eq 'ok' || $status eq 'con_delayed') {
739: &store_sent_mail($msgid,$packed_message_no_citation);
740: }
741: }
742: } else {
743: $status='no_host';
744: }
745:
746: # Notifications
747: my %userenv = &Apache::loncommon::getemails($user,$domain);
748: my $critnotify = $userenv{'critnotification'};
749: my $permemail = $userenv{'permanentemail'};
750: my $numcrit = 0;
751: my $numperm = 0;
752: my $permlogmsgstatus;
753: if ($critnotify) {
754: $numcrit = &sendnotification($critnotify,$user,$domain,$subject,1,$text,$msgid,$attachmenturl);
755: }
756: if ($toperm && $permemail) {
757: if ($critnotify && $numcrit) {
758: if (grep(/^\Q$permemail\E/,split(/,/,$critnotify))) {
759: $numperm = 1;
760: }
761: }
762: unless ($numperm) {
763: $numperm = &sendnotification($permemail,$user,$domain,$subject,1,$text,$msgid,$attachmenturl);
764: }
765: }
766: if ($toperm) {
767: $permlogmsgstatus = '. Perm. email log status '.
768: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
769: "Perm. e-mail count $numperm for $user at $domain");
770: if (ref($permresults) eq 'HASH') {
771: $permresults->{"$user:$domain"} = $numperm;
772: }
773: }
774: # Log this
775: &Apache::lonnet::logthis(
776: 'Sending critical '.$msgid.
777: ', log status: '.
778: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
779: $env{'user.home'},
780: 'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status '
781: .$status).$permlogmsgstatus);
782: return $status;
783: }
784:
785:
786:
787: sub user_crit_msg {
788: my ($user,$domain,$subject,$message,$sendback,$toperm,$sentmessage,
789: $nosentstore,$recipid,$attachmenturl,$permresults)=@_;
790: my @status;
791: my %userenv = &Apache::lonnet::get('environment',['msgforward'],
792: $domain,$user);
793: my $msgforward=$userenv{'msgforward'};
794: if ($msgforward) {
795: foreach my $addr (split(/\,/,$msgforward)) {
796: my ($forwuser,$forwdomain)=split(/\:/,$addr);
797: push(@status,
798: &user_crit_msg_raw($forwuser,$forwdomain,$subject,$message,
799: $sendback,$toperm,$sentmessage,$nosentstore,
800: $recipid,$attachmenturl,$permresults));
801: }
802: } else {
803: push(@status,
804: &user_crit_msg_raw($user,$domain,$subject,$message,$sendback,
805: $toperm,$sentmessage,$nosentstore,$recipid,
806: $attachmenturl,$permresults));
807: }
808: if (wantarray) {
809: return @status;
810: }
811: return join(' ',@status);
812: }
813:
814:
815: sub user_crit_received {
816: my $msgid=shift;
817: my %message=&Apache::lonnet::get('critical',[$msgid]);
818: my %contents=&unpackagemsg($message{$msgid},1);
819: my $destname = $contents{'sendername'};
820: my $destdom = $contents{'senderdomain'};
821: if ($contents{'replytoaddr'}) {
822: my ($repname,$repdom) = split(/:/,$contents{'replytoaddr'});
823: if (&Apache::lonnet::homeserver($repname,$repdom) ne 'no_host') {
824: $destname = $repname;
825: $destdom = $repdom;
826: }
827: }
828: my $status='rec: '.($contents{'sendback'}?
829: &user_normal_msg($destname,$destdom,&mt('Receipt').': '.$env{'user.name'}.
830: ' '.&mt('at').' '.$env{'user.domain'}.', '.
831: $contents{'subject'},&mt('User').' '.$env{'user.name'}.
832: ' '.&mt('at').' '.$env{'user.domain'}.
833: ' acknowledged receipt of message'."\n".' "'.
834: $contents{'subject'}.'"'."\n".&mt('dated').' '.
835: $contents{'time'}.".\n"
836: ):'no msg req');
837: $status.=' trans: '.
838: &Apache::lonnet::put(
839: 'nohist_email',{$contents{'msgid'} => $message{$msgid}});
840: $status.=' del: '.
841: &Apache::lonnet::del('critical',[$contents{'msgid'}]);
842: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
843: $env{'user.home'},'Received critical message '.
844: $contents{'msgid'}.
845: ', '.$status);
846: return $status;
847: }
848:
849:
850:
851:
852: sub user_normal_msg_raw {
853: my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
854: $toperm,$currid,$newid,$sentmessage,$crsmsgid,$symb,$restitle,
855: $error,$nosentstore,$recipid,$permresults)=@_;
856: # Check if allowed missing
857: my ($status,$packed_message);
858: my $msgid='undefined';
859: my $text=$message;
860: unless (($message)&&($user)&&($domain)) { $status='empty'; };
861: my $homeserver=&Apache::lonnet::homeserver($user,$domain);
862: if ($homeserver ne 'no_host') {
863: ($msgid,$packed_message)=
864: &packagemsg($subject,$message,$citation,$baseurl,
865: $attachmenturl,$user,$domain,$currid,
866: undef,$crsmsgid,$symb,$error,$recipid);
867:
868: # Store in user folder
869: $status=
870: &Apache::lonnet::cput('nohist_email',{$msgid => $packed_message},
871: $domain,$user);
872: # Save new message received time
873: &Apache::lonnet::put
874: ('email_status',{'recnewemail'=>time},$domain,$user);
875: # Into sent-mail folder if sent mail storage required
876: if (!$nosentstore) {
877: (undef,my $packed_message_no_citation) =
878: &packagemsg($subject,$message,undef,$baseurl,$attachmenturl,
879: $user,$domain,$currid,undef,$crsmsgid,$symb,$error);
880: if ($status eq 'ok' || $status eq 'con_delayed') {
881: &store_sent_mail($msgid,$packed_message_no_citation);
882: }
883: }
884: if (ref($newid) eq 'SCALAR') {
885: $$newid = $msgid;
886: }
887: if (ref($sentmessage) eq 'SCALAR') {
888: $$sentmessage = $packed_message;
889: }
890: # Notifications
891: my %userenv = &Apache::loncommon::getemails($user,$domain);
892: my $notify = $userenv{'notification'};
893: my $permemail = $userenv{'permanentemail'};
894: my $numnotify = 0;
895: my $numperm = 0;
896: my $permlogmsgstatus;
897: if ($notify) {
898: $numnotify = &sendnotification($notify,$user,$domain,$subject,0,$text,$msgid,$attachmenturl);
899: }
900: if ($toperm && $permemail) {
901: if ($notify && $numnotify) {
902: if (grep(/^\Q$permemail\E/,split(/,/,$notify))) {
903: $numperm = 1;
904: }
905: }
906: unless ($numperm) {
907: $numperm = &sendnotification($permemail,$user,$domain,$subject,0,
908: $text,$msgid,$attachmenturl);
909: }
910: }
911: if ($toperm) {
912: $permlogmsgstatus = '. Perm. email log status '.
913: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
914: "Perm. e-mail count $numperm for $user at $domain");
915: if (ref($permresults) eq 'HASH') {
916: $permresults->{"$user:$domain"} = $numperm;
917: }
918: }
919: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
920: $env{'user.home'},
921: 'Sending '.$msgid.' to '.$user.' at '.$domain.' with status '.$status.
922: $permlogmsgstatus);
923: } else {
924: $status='no_host';
925: }
926: return $status;
927: }
928:
929: sub user_normal_msg {
930: my ($user,$domain,$subject,$message,$citation,$baseurl,$attachmenturl,
931: $toperm,$sentmessage,$symb,$restitle,$error,$nosentstore,$recipid,
932: $permresults)=@_;
933: my @status;
934: my %userenv = &Apache::lonnet::get('environment',['msgforward'],
935: $domain,$user);
936: my $msgforward=$userenv{'msgforward'};
937: if ($msgforward) {
938: foreach my $fwd (split(/\,/,$msgforward)) {
939: my ($forwuser,$forwdomain)=split(/\:/,$fwd);
940: push(@status,
941: &user_normal_msg_raw($forwuser,$forwdomain,$subject,$message,
942: $citation,$baseurl,$attachmenturl,$toperm,
943: undef,undef,$sentmessage,undef,$symb,
944: $restitle,$error,$nosentstore,$recipid,$permresults));
945: }
946: } else {
947: push(@status,&user_normal_msg_raw($user,$domain,$subject,$message,
948: $citation,$baseurl,$attachmenturl,$toperm,
949: undef,undef,$sentmessage,undef,$symb,
950: $restitle,$error,$nosentstore,$recipid,$permresults));
951: }
952: if (wantarray) {
953: return @status;
954: }
955: return join(' ',@status);
956: }
957:
958: sub process_sent_mail {
959: my ($msgsubj,$subj_prefix,$numsent,$stamp,$msgname,$msgdom,$msgcount,
960: $context,$pid,$savemsg,$recusers,$recudoms,$baseurl,$attachmenturl,
961: $symb,$error,$senderuname,$senderdom,$recipid) = @_;
962: my $sentsubj;
963: if ($numsent > 1) {
964: $sentsubj = $subj_prefix.' ('.$numsent.' sent) '.$msgsubj;
965: } else {
966: if ($subj_prefix) {
967: $sentsubj = $subj_prefix.' ';
968: }
969: $sentsubj .= $msgsubj;
970: }
971: $sentsubj = &HTML::Entities::encode($sentsubj,'<>&"');
972: my $sentmsgid =
973: &buildmsgid($stamp,$sentsubj,$msgname,$msgdom,$msgcount,$context,$pid);
974: (undef,my $sentmessage) =
975: &packagemsg($msgsubj,$savemsg,undef,$baseurl,$attachmenturl,$recusers,
976: $recudoms,$sentmsgid,undef,undef,$symb,$error,$recipid);
977: my $status = &store_sent_mail($sentmsgid,$sentmessage,$senderuname,
978: $senderdom);
979: return $status;
980: }
981:
982: sub store_sent_mail {
983: my ($msgid,$message,$senderuname,$senderdom) = @_;
984: if ($senderuname eq '') {
985: $senderuname = $env{'user.name'};
986: }
987: if ($senderdom eq '') {
988: $senderdom = $env{'user.domain'};
989: }
990: my $status =' '.&Apache::lonnet::cput('nohist_email_sent',
991: {$msgid => $message},
992: $senderdom,$senderuname);
993: return $status;
994: }
995:
996: sub store_recipients {
997: my ($subject,$sendername,$senderdom,$reciphash) = @_;
998: my $context = &get_course_context();
999: my $now = time();
1000: my $msgcount = &get_uniq();
1001: my $recipid =
1002: &buildmsgid($now,$subject,$sendername,$senderdom,$msgcount,$context,$$);
1003: my %recipinfo = (
1004: $recipid => $reciphash,
1005: );
1006: my $status = &Apache::lonnet::put('nohist_emailrecip',\%recipinfo,
1007: $senderdom,$sendername);
1008: if ($status eq 'ok') {
1009: return ($recipid,$status);
1010: } else {
1011: return (undef,$status);
1012: }
1013: }
1014:
1015:
1016: sub foldersuffix {
1017: my $folder=shift;
1018: unless ($folder) { return ''; }
1019: my $suffix;
1020: my %folderhash = &get_user_folders($folder);
1021: if (ref($folderhash{$folder}) eq 'HASH') {
1022: $suffix = '_'.&escape($folderhash{$folder}{'id'});
1023: } else {
1024: $suffix = '_'.&escape($folder);
1025: }
1026: return $suffix;
1027: }
1028:
1029:
1030: sub get_user_folders {
1031: my ($folder) = @_;
1032: my %userfolders =
1033: &Apache::lonnet::dump('email_folders',undef,undef,$folder);
1034: my $lock = "\0".'lock_counter'; # locks db while counter incremented
1035: my $counter = "\0".'idcount'; # used in suffix for email db files
1036: if (defined($userfolders{$lock})) {
1037: delete($userfolders{$lock});
1038: }
1039: if (defined($userfolders{$counter})) {
1040: delete($userfolders{$counter});
1041: }
1042: return %userfolders;
1043: }
1044:
1045: sub secapply {
1046: my $rec=shift;
1047: my $defaultflag=shift;
1048: $rec=~s/\s+//g;
1049: unless ($rec =~ /\:/) {
1050: $rec=~s/\@/\:/g;
1051: }
1052: my ($adr,$sections_or_groups)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
1053: if ($sections_or_groups) {
1054: foreach my $item (split(/\;/,$sections_or_groups)) {
1055: if (($item eq $env{'request.course.sec'}) ||
1056: ($defaultflag && ($item eq '*'))) {
1057: return $adr;
1058: } elsif ($env{'request.course.groups'}) {
1059: my @usersgroups = split(/:/,$env{'request.course.groups'});
1060: if (grep(/^\Q$item\E$/,@usersgroups)) {
1061: return $adr;
1062: }
1063: }
1064: }
1065: } else {
1066: return $rec;
1067: }
1068: return '';
1069: }
1070:
1071: sub decide_receiver {
1072: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
1073: &Apache::lonenc::check_decrypt(\$feedurl);
1074: my $typestyle='';
1075: my %to=();
1076: if ($env{'form.discuss'} eq 'author' ||$author) {
1077: $typestyle.='Submitting as Author Feedback<br />';
1078: $feedurl=~ m{^/res/($LONCAPA::domain_re)/($LONCAPA::username_re)/};
1079: $to{$2.':'.$1}=1;
1080: }
1081: my $cid = $env{'request.course.id'};
1082: if ($env{'form.discuss'} eq 'question' ||$question) {
1083: $typestyle.=&mt('Submitting as Question').'<br />';
1084: foreach my $item (split(/\,/,$env{'course.'.$cid.'.question.email'})) {
1085: my $rec=&secapply($item,$defaultflag);
1086: if ($rec) { $to{$rec}=1; }
1087: }
1088: }
1089: if ($env{'form.discuss'} eq 'course' ||$course) {
1090: $typestyle.=&mt('Submitting as Comment').'<br />';
1091: foreach my $item (split(/\,/,$env{'course.'.$cid.'.comment.email'})) {
1092: my $rec=&secapply($item,$defaultflag);
1093: if ($rec) { $to{$rec}=1; }
1094: }
1095: }
1096: if ($env{'form.discuss'} eq 'policy' ||$policy) {
1097: $typestyle.=&mt('Submitting as Policy Feedback').'<br />';
1098: foreach my $item (split(/\,/,$env{'course.'.$cid.'.policy.email'})) {
1099: my $rec=&secapply($item,$defaultflag);
1100: if ($rec) { $to{$rec}=1; }
1101: }
1102: }
1103: if ((scalar(%to) eq '0') && (!$defaultflag)) {
1104: ($typestyle,%to)=
1105: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
1106: }
1107: return ($typestyle,%to);
1108: }
1109:
1110: 1;
1111: __END__
1112:
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