File:
[LON-CAPA] /
loncom /
interface /
lonfeedback.pm
Revision
1.388:
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Tue Jan 18 16:55:30 2022 UTC (2 years, 4 months ago) by
raeburn
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MAIN
CVS tags:
HEAD
- Handle case where URL on which feedback is to be sent is unavailable or
is /adm/feedback itself.
- Handle cases where &fail_redirect() and no_redirect_back() are called when
feedback is composed in modal window (i.e., "Send Feedback" link was used).
- Delay (s) can be passed as arg to &fail_redirect() and no_redirect_back()
to allow user time to read message before window closes or page reloads.
- If there is only one available feedback option automatically check the
radio button for that option.
- If there are no available feedback options display "Sorry, no recipients"
before pop-up close or page reload.
1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.388 2022/01/18 16:55:30 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:
30: package Apache::lonfeedback;
31:
32: use strict;
33: use Apache::Constants qw(:common);
34: use Apache::lonmsg();
35: use Apache::loncommon();
36: use Apache::lontexconvert();
37: use Apache::lonlocal; # must not have ()
38: use Apache::lonnet;
39: use Apache::lonhtmlcommon();
40: use Apache::lonnavmaps;
41: use Apache::lonenc();
42: use Apache::lonrss();
43: use HTML::LCParser();
44: #use HTML::Tidy::libXML;
45: use Apache::lonspeller();
46: use Apache::longroup;
47: use Archive::Zip qw( :ERROR_CODES );
48: use LONCAPA qw(:DEFAULT :match);
49:
50: sub discussion_open {
51: my ($status,$symb)=@_;
52: # Advanced roles can always discuss
53: if ($env{'request.role.adv'}) { return 1; }
54: # Get discussion closing date
55: my $close=&Apache::lonnet::EXT('resource.0.discussend',$symb);
56: # If it is defined and in the future, the instructor wants this discussion to be open
57: if (defined($close) && $close ne '' && $close > time) {
58: return 1;
59: }
60: # It was not explicitly open, check if the problem is available.
61: # If the problem is not available, close the discussion
62: if (defined($status) &&
63: !($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
64: || $status eq 'OPEN')) {
65: return 0;
66: }
67: # The problem is available, but check if the instructor explictly closed discussion
68: if (defined($close) && $close ne '' && $close < time) {
69: return 0;
70: }
71: return 1;
72: }
73:
74: sub discussion_visible {
75: my ($status)=@_;
76: if (not &discussion_open($status)) {
77: my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
78: if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden)) {
79: if (!$env{'request.role.adv'}) { return 0; }
80: }
81: }
82: return 1;
83: }
84:
85: sub discussion_vote_available {
86: my ($status,$symb)=@_;
87: my $canvote=&Apache::lonnet::EXT('resource.0.discussvote',$symb);
88: if ((lc($canvote) eq 'yes') ||
89: ((lc($canvote) eq 'notended') && (&discussion_open($status,$symb)))) {
90: return 1;
91: }
92: }
93:
94: sub get_realsymb {
95: my ($symb) = @_;
96: my $realsymb = $symb;
97: if ($symb=~/^bulletin___/) {
98: my $filename=(&Apache::lonnet::decode_symb($symb))[2];
99: $filename=~s{^adm/wrapper/}{};
100: $realsymb=&Apache::lonnet::symbread($filename);
101: }
102: return $realsymb;
103: }
104:
105: sub list_discussion {
106: my ($mode,$status,$ressymb,$imsextras,$group)=@_;
107: unless ($ressymb) { $ressymb=&Apache::lonnet::symbread(); }
108: unless ($ressymb) { return ''; }
109: $ressymb=&wrap_symb($ressymb);
110: my $outputtarget=$env{'form.grade_target'};
111: if (defined($env{'form.export'})) {
112: if($env{'form.export'}) {
113: $outputtarget = 'export';
114: }
115: }
116: if (defined($imsextras)) {
117: if ($$imsextras{'caller'} eq 'imsexport') {
118: $outputtarget = 'export';
119: }
120: }
121: my ($nofooter,$nodisclink,$nofdbklink);
122: if (not &discussion_visible($status)) {
123: if ($mode ne 'board') {
124: ($nofooter,$nodisclink,$nofdbklink) = &check_menucoll();
125: if ($nofooter || $nofdbklink) {
126: return '<br />';
127: } else {
128: &Apache::lonenc::check_encrypt(\$ressymb);
129: return '<br /><div class="LC_feedback_link">'.&send_message_link($ressymb)."</div>";
130: }
131: }
132: }
133: if ($group ne '' && $mode eq 'board') {
134: if (&check_group_priv($group,'vgb') ne 'ok') {
135: return '';
136: }
137: }
138:
139: unless ($outputtarget eq 'export') {
140: ($nofooter,$nodisclink,$nofdbklink) = &check_menucoll();
141: }
142:
143: unless ($nofooter) {
144: my ($blocked,$blocktext) =
145: &Apache::loncommon::blocking_status('boards');
146: if ($blocked) {
147: my $footer = '<br /><div class="LC_feedback_link">';
148: unless ($nodisclink) {
149: $footer .= '<span class="LC_feedback_link">'.$blocktext.'</span>';
150: }
151: &Apache::lonenc::check_encrypt(\$ressymb);
152: if ($mode ne 'board') {
153: unless ($nofdbklink) {
154: $footer.=&send_message_link($ressymb);
155: }
156: }
157: $footer.='</div>';
158: return $footer;
159: }
160: }
161:
162: my @bgcols = ("LC_disc_old_item","LC_disc_new_item");
163: my $discussiononly=0;
164: if ($mode eq 'board') { $discussiononly=1; }
165: unless ($env{'request.course.id'}) { return ''; }
166: my $crs='/'.$env{'request.course.id'};
167: my $cid=$env{'request.course.id'};
168: if ($env{'request.course.sec'}) {
169: $crs.='_'.$env{'request.course.sec'};
170: }
171: $crs=~s/\_/\//g;
172: my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
173: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
174: && ($ressymb=~/$LONCAPA::assess_re/));
175:
176: my %usernamesort = ();
177: my %namesort =();
178: my %subjectsort = ();
179:
180: # Get discussion display settings for this discussion
181: my $lastkey = $ressymb.'_lastread';
182: my $showkey = $ressymb.'_showonlyunread';
183: my $markkey = $ressymb.'_showonlyunmark',
184: my $visitkey = $ressymb.'_visit';
185: my $ondispkey = $ressymb.'_markondisp';
186: my $userpickkey = $ressymb.'_userpick';
187: my $toggkey = $ressymb.'_readtoggle';
188: my $readkey = $ressymb.'_read';
189: $ressymb=$encsymb;
190: my %dischash = &Apache::lonnet::get('nohist_'.$cid.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$env{'user.domain'},$env{'user.name'});
191: my %discinfo = ();
192: my $showonlyunread = 0;
193: my $showunmark = 0;
194: my $markondisp = 0;
195: my $prevread = 0;
196: my $previous = 0;
197: my $visit = 0;
198: my $newpostsflag = 0;
199: my @posters = split(/\&/,$dischash{$userpickkey});
200:
201: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
202: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','grouppick','totposters']);
203: my $sortposts = $env{'form.sortposts'};
204: my $statusfilter = $env{'form.statusfilter'};
205: my @sectionpick = split(/,/,$env{'form.sectionpick'});
206: my @grouppick = split(/,/,$env{'form.grouppick'});
207: my @rolefilter = split(/,/,$env{'form.rolefilter'});
208:
209: my $totposters = $env{'form.totposters'};
210: $previous = $env{'form.previous'};
211: if ($previous > 0) {
212: $prevread = $previous;
213: } elsif (defined($dischash{$lastkey})) {
214: unless ($dischash{$lastkey} eq '') {
215: $prevread = $dischash{$lastkey};
216: }
217: }
218:
219: my $cdom = $env{'course.'.$cid.'.domain'};
220: my $cnum = $env{'course.'.$cid.'.num'};
221: my $crstype = &Apache::loncommon::course_type();
222:
223: # Get information about students and non-students in course for filtering display of posts
224: my %roleshash = ();
225: my %roleinfo = ();
226: my ($classgroups,$studentgroups);
227: if ($env{'form.rolefilter'}) {
228: %roleshash = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
229: foreach my $rolekey (keys(%roleshash)) {
230: my ($role,$uname,$udom,$sec) = split(/:/,$rolekey);
231: if ($role =~ /^cr/) {
232: $role = 'cr';
233: }
234: my ($end,$start) = split(/:/,$roleshash{$rolekey});
235: my $now = time;
236: my $status = 'Active';
237: if (($now < $start) || ($end > 0 && $now > $end)) {
238: $status = 'Expired';
239: }
240: if ($uname && $udom) {
241: push(@{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status);
242: }
243: }
244: my ($classlist,$keylist) =
245: &Apache::loncoursedata::get_classlist($cdom,$cnum);
246: my $sec_index = &Apache::loncoursedata::CL_SECTION();
247: my $status_index = &Apache::loncoursedata::CL_STATUS();
248: while (my ($student,$data) = each %$classlist) {
249: my ($section,$status) = ($data->[$sec_index],
250: $data->[$status_index]);
251: push(@{$roleinfo{$student}}, 'st:'.$section.':'.$status);
252: }
253: ($classgroups,$studentgroups) =
254: &Apache::loncoursedata::get_group_memberships($classlist,$keylist,
255: $cdom,$cnum);
256: }
257:
258: # Get discussion display default settings for user
259: if ($env{'environment.discdisplay'} eq 'unread') {
260: $showonlyunread = 1;
261: }
262: if ($env{'environment.discmarkread'} eq 'ondisp') {
263: $markondisp = 1;
264: }
265:
266: # Override user's default if user specified display setting for this discussion
267: if (defined($dischash{$ondispkey})) {
268: unless ($dischash{$ondispkey} eq '') {
269: $markondisp = $dischash{$ondispkey};
270: }
271: }
272: if ($markondisp) {
273: $discinfo{$lastkey} = time;
274: }
275:
276: if (defined($dischash{$showkey})) {
277: unless ($dischash{$showkey} eq '') {
278: $showonlyunread = $dischash{$showkey};
279: }
280: }
281:
282: if (defined($dischash{$markkey})) {
283: unless ($dischash{$markkey} eq '') {
284: $showunmark = $dischash{$markkey};
285: }
286: }
287:
288: if (defined($dischash{$visitkey})) {
289: unless ($dischash{$visitkey} eq '') {
290: $visit = $dischash{$visitkey};
291: }
292: }
293: $visit ++;
294:
295: my $seeid;
296: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
297: $seeid = 1;
298: }
299: my $seehidden = &can_see_hidden($mode,$ressymb,undef,$group,$cdom,$cnum,$crs);
300:
301: # Is voting on discussions available
302: my $realsymb = &get_realsymb($ressymb);
303: my $canvote = &discussion_vote_available($status,$realsymb);
304:
305: my @discussionitems=();
306: my %shown = ();
307: my @posteridentity=();
308:
309: my $current=0;
310: my $visible=0;
311: my @depth=();
312: my @replies = ();
313: my %alldiscussion=();
314: my %imsitems=();
315: my %imsfiles=();
316: my %notshown = ();
317: my %newitem = ();
318: my $maxdepth=0;
319: my %anonhash=();
320: my $anoncnt=0;
321:
322: my $now = time;
323: $discinfo{$visitkey} = $visit;
324:
325: &Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
326: &build_posting_display(\%usernamesort,\%subjectsort,\%namesort,\%notshown,\%newitem,\%dischash,\%shown,\%alldiscussion,\%imsitems,\%imsfiles,\%roleinfo,\@discussionitems,\@replies,\@depth,\@posters,\$maxdepth,\$visible,\$newpostsflag,\$current,$status,$viewgrades,$seeid,$seehidden,$canvote,$prevread,$sortposts,$encsymb,$readkey,$showunmark,$showonlyunread,$totposters,\@rolefilter,\@sectionpick,\@grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,\%anonhash,$anoncnt,$group);
327:
328: my $discussion='';
329: my $manifestfile;
330: my $manifestok=0;
331: my $tempexport;
332: my $imsresources;
333: my $copyresult;
334:
335: my $function = &Apache::loncommon::get_users_function();
336: my %lt = &Apache::lonlocal::texthash(
337: 'cuse' => 'My settings for this discussion',
338: 'allposts' => 'All posts',
339: 'unread' => 'New posts only',
340: 'unmark' => 'Unread only',
341: 'ondisp' => 'Once displayed',
342: 'onmark' => 'Once marked not NEW',
343: 'toggoff' => 'Off',
344: 'toggon' => 'On',
345: 'disa' => 'Posts to be displayed',
346: 'npce' => 'Posts cease to be marked "NEW"',
347: 'epcb' => 'Each post can be toggled read/unread',
348: 'chgt' => 'Change',
349: 'disp' => 'Display',
350: 'nolo' => 'Not new',
351: 'togg' => 'Toggle read/unread',
352: 'aner' => 'An error occurred opening the manifest file.',
353: 'difo' => 'Discussion for',
354: 'aerr' => 'An error occurred opening the export file for posting',
355: 'discussions' => 'DISCUSSIONS'
356: );
357: my %js_lt = &Apache::lonlocal::texthash(
358: 'aysu' => 'Are you sure you want to delete this post?',
359: 'dpwn' => 'Deleted posts will no longer be visible to you and other students',
360: 'bwco' => 'but will continue to be visible to your instructor',
361: 'depo' => 'Deleted posts will no longer be visible to you or anyone else.',
362: );
363: &js_escape(\%js_lt);
364:
365: my $currdisp = $lt{'allposts'};
366: my $currmark = $lt{'onmark'};
367: my $currtogg = $lt{'toggoff'};
368: my $dispchange = $lt{'unread'};
369: my $markchange = $lt{'ondisp'};
370: my $toggchange = $lt{'toggon'};
371: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
372: my $displinkA = 'onlyunread';
373: my $displinkB = 'onlyunmark';
374: my $marklink = 'markondisp';
375: my $togglink = 'toggon';
376:
377: if ($markondisp) {
378: $currmark = $lt{'ondisp'};
379: $markchange = $lt{'onmark'};
380: $marklink = 'markonread';
381: }
382:
383: if ($showonlyunread) {
384: $currdisp = $lt{'unread'};
385: $dispchange = $lt{'allposts'};
386: $displinkA = 'allposts';
387: }
388:
389: if ($showunmark) {
390: $currdisp = $lt{'unmark'};
391: $dispchange = $lt{'unmark'};
392: $displinkA='allposts';
393: $displinkB='onlyunread';
394: $showonlyunread = 0;
395: }
396:
397: if ($dischash{$toggkey}) {
398: $currtogg = $lt{'toggon'};
399: $toggchange = $lt{'toggoff'};
400: $togglink = 'toggoff';
401: }
402:
403: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
404:
405: if ($newpostsflag) {
406: $chglink .= '&previous='.$prevread;
407: }
408: $chglink.=&group_args($group);
409:
410: if ($visible) {
411: # Print the discusssion
412: if ($outputtarget eq 'tex') {
413: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
414: '\textbf{'.$lt{'discussions'}.'}\makebox[2 cm][b]{\hrulefill}\vskip 0 mm'.
415: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
416: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
417: } elsif ($outputtarget eq 'export') {
418: # Create temporary directory if this is an export
419: my $now = time;
420: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
421: $tempexport = $$imsextras{'tempexport'};
422: if (!-e $tempexport) {
423: mkdir($tempexport,0700);
424: }
425: $tempexport .= '/'.$$imsextras{'count'};
426: if (!-e $tempexport) {
427: mkdir($tempexport,0700);
428: }
429: } else {
430: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
431: if (!-e $tempexport) {
432: mkdir($tempexport,0700);
433: }
434: $tempexport .= '/'.$now;
435: if (!-e $tempexport) {
436: mkdir($tempexport,0700);
437: }
438: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
439: }
440: if (!-e $tempexport) {
441: mkdir($tempexport,0700);
442: }
443: # open manifest file
444: my $manifest = '/imsmanifest.xml';
445: my $manifestfilename = $tempexport.$manifest;
446: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
447: $manifestok=1;
448: print $manifestfile qq|<?xml version="1.0" encoding="UTF-8"?>
449: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
450: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
451: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
452: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
453: <organizations default="$ressymb">
454: <organization identifier="$ressymb">
455: <title>$lt{'difo'} $ressymb</title>\n|;
456: } else {
457: $discussion .= $lt{'aner'}.'<br />';
458: }
459: } else {
460: my $colspan=$maxdepth+1;
461: $discussion.= &Apache::lonhtmlcommon::scripttag(qq|
462: function verifydelete (caller,symb,idx,newflag,previous,groupparm) {
463: var symbparm = symb+':::'+idx
464: var prevparm = ""
465: if (newflag == 1) {
466: prevparm = "&previous="+previous
467: }
468: if (caller == 'studentdelete') {
469: if (confirm("$js_lt{'aysu'}\\n$js_lt{'dpwn'},\\n$js_lt{'bwco'}")) {
470: document.location.href = "/adm/feedback?hide="+symbparm+prevparm+groupparm
471: }
472: } else {
473: if (caller == 'seeiddelete') {
474: if (confirm("$js_lt{'aysu'}\\n$js_lt{'depo'}")) {
475: document.location.href = "/adm/feedback?deldisc="+symbparm+prevparm+groupparm
476: }
477: }
478: }
479: }
480: |);
481: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" >'.
482: "\n".'<table width="100%" class="LC_discussion">';
483: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
484: $newpostsflag,$group,
485: $prevread,$markondisp,$seehidden);
486: my $escsymb=&escape($ressymb);
487: my $numhidden = keys(%notshown);
488: if ($numhidden > 0) {
489: my $colspan = $maxdepth+1;
490: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">';
491: my $href = '/adm/feedback?allposts=1&symb='.$escsymb;
492: if ($newpostsflag) {
493: $href .= '&previous='.$prevread;
494: }
495: $href .= &group_args($group);
496: if ($showunmark) {
497: $discussion .= &mt('[_1]Show all posts[_2] to display [quant,_3,post] previously marked read',
498: '<a href="'.$href.'">','</a>',$numhidden);
499: } else {
500: $discussion .= &mt('[_1]Show all posts[_2] to display [quant,_3,post] previously viewed',
501: '<a href="'.$href.'">','</a>',$numhidden);
502: }
503: $discussion .= '<br/></td></tr>';
504: }
505: }
506:
507: # Choose sort mechanism
508: my @showposts = ();
509: if ($sortposts eq 'descdate') {
510: @showposts = (sort { $b <=> $a } keys(%alldiscussion));
511: } elsif ($sortposts eq 'thread') {
512: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
513: } elsif ($sortposts eq 'subject') {
514: foreach my $key (sort(keys(%subjectsort))) {
515: push(@showposts, @{$subjectsort{$key}});
516: }
517: } elsif ($sortposts eq 'username') {
518: foreach my $domain (sort(keys(%usernamesort))) {
519: foreach my $key (sort(keys(%{$usernamesort{$domain}}))) {
520: push(@showposts, @{$usernamesort{$domain}{$key}});
521: }
522: }
523: } elsif ($sortposts eq 'lastfirst') {
524: foreach my $last (sort(keys(%namesort))) {
525: foreach my $key (sort(keys(%{$namesort{$last}}))) {
526: push(@showposts, @{$namesort{$last}{$key}});
527: }
528: }
529: } else {
530: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
531: }
532: my $currdepth = 0;
533: my $firstidx = $alldiscussion{$showposts[0]};
534: foreach my $post (@showposts) {
535: unless (($sortposts eq 'thread') ||
536: (($sortposts eq '') && (!$env{'environment.unthreadeddiscussion'})) ||
537: ($outputtarget eq 'export')) {
538: $alldiscussion{$post} = $post;
539: }
540: unless ( ($notshown{$alldiscussion{$post}} eq '1') || ($shown{$alldiscussion{$post}} == 0) ) {
541: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
542: $discussion.="\n<tr>";
543: }
544: my $thisdepth=$depth[$alldiscussion{$post}];
545: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
546: for (1..$thisdepth) {
547: $discussion.='<td> </td>';
548: }
549: }
550: my $colspan=$maxdepth-$thisdepth+1;
551: if ($outputtarget eq 'tex') {
552: #cleanup block
553: $discussionitems[$alldiscussion{$post}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
554: $discussionitems[$alldiscussion{$post}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
555: my $threadinsert='';
556: if ($thisdepth > 0) {
557: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
558: }
559: $discussionitems[$alldiscussion{$post}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
560: $discussionitems[$alldiscussion{$post}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
561:
562: $discussionitems[$alldiscussion{$post}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$post}];
563: $discussion.=$discussionitems[$alldiscussion{$post}];
564: } elsif ($outputtarget eq 'export') {
565: my $postfilename = $alldiscussion{$post}.'-'.$imsitems{$alldiscussion{$post}}{'timestamp'}.'.html';
566: if ($manifestok) {
567: if (($depth[$alldiscussion{$post}] <= $currdepth) && ($alldiscussion{$post} != $firstidx)) {
568: print $manifestfile ' </item>'."\n";
569: }
570: $currdepth = $depth[$alldiscussion{$post}];
571: print $manifestfile "\n".
572: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$post}.'" isvisible="'.
573: $imsitems{$alldiscussion{$post}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$post}.'">'.
574: '<title>'.$imsitems{$alldiscussion{$post}}{'title'}.'</title></item>';
575: $imsresources .= "\n".
576: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$post}.'" type="webcontent" href="'.$postfilename.'">'."\n".
577: '<file href="'.$postfilename.'">'."\n".
578: $imsfiles{$alldiscussion{$post}}{$imsitems{$alldiscussion{$post}}{'currversion'}}.'</file>'."\n".
579: '</resource>';
580: }
581: my $postingfile;
582: my $postingfilename = $tempexport.'/'.$postfilename;
583: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
584: print $postingfile '<html><head><title>'.&mt('Discussion Post').'</title></head><body>'.
585: $imsitems{$alldiscussion{$post}}{'title'}.' '.
586: $imsitems{$alldiscussion{$post}}{'sender'}.
587: $imsitems{$alldiscussion{$post}}{'timestamp'}.'<br /><br />'.
588: $imsitems{$alldiscussion{$post}}{'message'}.'<br />'.
589: $imsitems{$alldiscussion{$post}}{'attach'}.'</body></html>'."\n";
590: close($postingfile);
591: } else {
592: $discussion .= $lt{'aerr'}.' '.$alldiscussion{$post}.'<br />';
593: }
594: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$post}}{'allattachments'},$tempexport);
595: } else {
596: $discussion.='<td class="'.$bgcols[$newitem{$alldiscussion{$post}}].
597: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$post}].
598: '</td></tr>';
599: }
600: }
601: }
602: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
603: my $colspan=$maxdepth+1;
604: $discussion .= <<END;
605: <tr>
606: <td colspan="$colspan">
607: <table width="100%">
608: <tr>
609: <td class="LC_disc_action_left">
610: <font size="-1"><b>$lt{'cuse'}</b>:
611: END
612: if ($newpostsflag) {
613: $discussion .=
614: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
615: if ($dischash{$toggkey}) {
616: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
617: }
618: } else {
619: if ($dischash{$toggkey}) {
620: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
621: } else {
622: $discussion .=
623: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
624: }
625: }
626: $discussion .= <<END;
627: <b><a href="$chglink">$lt{'chgt'}</a></b></font>
628: </td>
629: END
630: if ($sortposts) {
631: my %sort_types = ();
632: my %role_types = ();
633: my %status_types = ();
634: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
635:
636: $discussion .= '<td class="LC_disc_action_right"><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
637: if (defined($env{'form.totposters'})) {
638: $discussion .= &mt('Posts by').':';
639: if ($totposters > 0) {
640: foreach my $poster (@posters) {
641: $discussion .= ' '.$poster.',';
642: }
643: $discussion =~ s/,$//;
644: } else {
645: $discussion .= &mt('None selected');
646: }
647: } else {
648: my $filterchoice ='';
649: if (@sectionpick > 0) {
650: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
651: $filterchoice .= ' ';
652: }
653: if (@grouppick > 0) {
654: $filterchoice = '<i>'.&mt('groups').'</i>- '.$env{'form.grouppick'};
655: $filterchoice .= ' ';
656: }
657: if (@rolefilter > 0) {
658: $filterchoice .= '<i>'.&mt('roles').'</i>-';
659: foreach my $role (@rolefilter) {
660: $filterchoice .= ' '.$role_types{$role}.',';
661: }
662: $filterchoice =~ s/,$//;
663: $filterchoice .= '<br />'.(' ' x8);
664: }
665: if ($statusfilter) {
666: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
667: }
668: if ($filterchoice) {
669: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
670: }
671: }
672: $discussion .= '</font></td>';
673:
674: }
675: if ($dischash{$toggkey}) {
676: my $storebutton = &mt('Save read/unread changes');
677: $discussion.='<td align="right">'.
678: '<input type="hidden" name="discsymb" value="'.$ressymb.'" />'."\n".
679: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
680: ' onclick="this.form.submit();" />'."\n".
681: '</td>';
682: }
683: $discussion .= (<<END);
684: </tr>
685: </table>
686: </td>
687: </tr>
688: END
689: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
690: $newpostsflag,$group,
691: $prevread,$markondisp,$seehidden);
692: $discussion .= "</table></form>\n";
693: }
694: if ($outputtarget eq 'export') {
695: if ($manifestok) {
696: while ($currdepth > 0) {
697: print $manifestfile " </item>\n";
698: $currdepth --;
699: }
700: print $manifestfile qq|
701: </organization>
702: </organizations>
703: <resources>
704: $imsresources
705: </resources>
706: </manifest>
707: |;
708: close($manifestfile);
709: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
710: $discussion = $copyresult;
711: } else {
712:
713: #Create zip file in prtspool
714:
715: if (($env{'user.name'} =~ /^$match_username$/)
716: && ($env{'user.domain'} =~ /^$match_domain$/)) {
717: my $now = time();
718: my $imszipfile = '/prtspool/'.
719: join('_',$env{'user.name'},$env{'user.domain'},$now).
720: '_'.rand(1000000000).'.zip';
721: my $zip = Archive::Zip->new();
722: $zip->addTree($tempexport);
723: my $imszip = '/home/httpd/'.$imszipfile;
724: if ($zip->writeToFileNamed($imszip) == AZ_OK) {
725: $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive[_2]',
726: '<a href="'.$imszipfile.'">','</a>').'<br />';
727: } else {
728: $discussion .= &mt('Failed to create zip file').'<br />';
729: }
730: if ($copyresult) {
731: $discussion .= '<span class="LC_error">'.
732: &mt('The following errors occurred during export:').
733: '</span><br />'.$copyresult;
734: }
735: } else {
736: $discussion .= '<p class="LC_error">'.
737: &mt('Unfortunately you will not be able to retrieve an archive of the discussion posts at this time, because there was a problem creating the zip file.').'</p>';
738: }
739: }
740: } else {
741: $discussion .= '<p class="LC_error">'.
742: &mt('Unfortunately you will not be able to retrieve an archive of the discussion posts at this time, because there was a problem creating a manifest file.').'</p>';
743: }
744: return $discussion;
745: }
746: }
747: if ($discussiononly) {
748: my $now = time;
749: my $attachnum = 0;
750: my $currnewattach = [];
751: my $currdelold = [];
752: my $comment = '';
753: my $subject = '';
754: if ($env{'form.origpage'}) {
755: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
756: $subject = &unescape($env{'form.subject'});
757: $comment = &unescape($env{'form.comment'});
758: my @keepold = ();
759: &process_attachments($currnewattach,$currdelold,\@keepold);
760: if (@{$currnewattach} > 0) {
761: $attachnum += @{$currnewattach};
762: }
763: }
764: if ((&discussion_open($status)) && ($outputtarget ne 'tex')) {
765: if (($group ne '') && ($mode eq 'board')) {
766: if ((&check_group_priv($group,'pgd') eq 'ok') &&
767: ($ressymb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})) {
768: $discussion .=
769: &postingform_display($mode,$ressymb,$now,$subject,
770: $comment,$outputtarget,$attachnum,
771: $currnewattach,$currdelold,
772: $group,$crstype);
773: }
774: } else {
775: if (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
776: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
777:
778: $discussion.=
779: &postingform_display($mode,$ressymb,$now,$subject,
780: $comment,$outputtarget,$attachnum,
781: $currnewattach,$currdelold,'',$crstype);
782: } else {
783: $discussion.= '<span class="LC_feedback_link">'.
784: &mt('This discussion is closed.').'</span>';
785: }
786: }
787: }
788: if (!(&discussion_open($status)) && ($outputtarget ne 'tex')) {
789: $discussion.= '<span class="LC_feedback_link">'.
790: &mt('This discussion is closed.').'</span>';
791: }
792: } elsif ($outputtarget ne 'tex') {
793: unless ($nofooter) {
794: $discussion.='<div class="LC_feedback_link">';
795: unless ($nodisclink) {
796: if (&discussion_open($status) &&
797: &Apache::lonnet::allowed('pch',
798: $env{'request.course.id'}.
799: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
800: $discussion.= &send_feedback_link($ressymb);
801: if ($env{'request.role.adv'}) {
802: my $close = &Apache::lonnet::EXT('resource.0.discussend',$ressymb);
803: my $canvote = &Apache::lonnet::EXT('resource.0.discussvote',$ressymb);
804: if (defined($close) && $close ne '' && $close < time) {
805: if ($canvote eq 'notended') {
806: $discussion .= ' '.&mt('(Posting and voting closed for [_1] roles)',
807: &Apache::lonnet::plaintext('st',$crstype));
808: } else {
809: $discussion .= ' '.&mt('(Closed for [_1] roles)',
810: &Apache::lonnet::plaintext('st',$crstype));
811: }
812: }
813: }
814: } else {
815: $discussion.= '<span class="LC_feedback_link">'.&mt('This discussion is closed.').'</span>';
816: }
817: }
818: unless ($nofdbklink) {
819: $discussion.= &send_message_link($ressymb);
820: }
821: $discussion.='</div>';
822: }
823: }
824: return $discussion;
825: }
826:
827: sub check_menucoll {
828: my ($nofooter,$nodisclink,$nofdbklink);
829: my ($menucoll,$deeplinkmenu,$menuref) = &Apache::loncommon::menucoll_in_effect();
830: if ($menucoll) {
831: if (ref($menuref) eq 'HASH') {
832: if ($menuref->{'foot'} eq 'n') {
833: $nofooter = 1;
834: } else {
835: unless ($menuref->{'disc'}) {
836: $nodisclink = 1;
837: }
838: unless ($menuref->{'fdbk'}) {
839: $nofdbklink = 1;
840: }
841: }
842: }
843: }
844: return ($nofooter,$nodisclink,$nofdbklink);
845: }
846:
847: sub can_see_hidden {
848: my ($mode,$ressymb,$feedurl,$group,$cdom,$cnum,$crs) = @_;
849: my $seehidden;
850: if ($env{'request.course.id'}) {
851: unless ($cdom ne '' && $cnum ne '') {
852: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
853: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
854: }
855: if ($crs eq '') {
856: $crs = '/'.$env{'request.course.id'};
857: if ($env{'request.course.sec'}) {
858: $crs.='_'.$env{'request.course.sec'};
859: }
860: $crs=~s{_}{/}g;
861: }
862: if ($mode eq '') {
863: $mode='board';
864: if ($feedurl =~ /$LONCAPA::assess_re/) {
865: $mode='problem';
866: }
867: }
868: if (($group ne '') && ($mode eq 'board') &&
869: ($ressymb =~ m{^bulletin___\d+\Q___adm/wrapper/adm/$cdom/$cnum/\E\d+/bulletinboard$})) {
870: if (&check_group_priv($group,'dgp') eq 'ok') {
871: $seehidden = 1;
872: }
873: } else {
874: $seehidden=&Apache::lonnet::allowed('rin',$crs);
875: }
876: }
877: return $seehidden;
878: }
879:
880: sub discussion_link {
881: my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title)=@_;
882: my $link='/adm/feedback?inhibitmenu=yes&modal=yes&'.$cmd.'='.&escape($ressymb).':::'.$item;
883: if ($flag) { $link .= '&previous='.$prev; }
884: if ($adds) { $link .= $adds; }
885: my $width=600;
886: my $height=600;
887: if (($cmd eq 'hide') || ($cmd eq 'unhide') || ($cmd eq 'like') || ($cmd eq 'unlike')) {
888: $width=300;
889: $height=200;
890: }
891: return &Apache::loncommon::modal_link($link,$linktext,$width,$height,undef,undef,$title);
892: }
893:
894:
895: sub send_feedback_link {
896: my ($ressymb) = @_;
897: return '<span class="LC_feedback_link">'.
898: &discussion_link($ressymb,
899: '<img alt="" class="LC_noBorder" src="'.
900: &Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
901: '" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span>',
902: 'replydisc').
903: '</span>';
904: }
905:
906: sub send_message_link {
907: my ($ressymb) = @_;
908: my $output = '<span class="LC_message_link">'.
909: &discussion_link($ressymb,
910: '<img alt="" class="LC_noBorder" src="'.
911: &Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
912: '" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span>',
913: 'sendmessageonly').
914: '</span>';
915: return $output;
916: }
917:
918: sub action_links_bar {
919: my ($colspan,$ressymb,$visible,$newpostsflag,$group,$prevread,$markondisp,
920: $seehidden) = @_;
921: my $discussion = '<tr><td colspan="'.$colspan.'">'.
922: '<table width="100%"><tr>'.
923: '<td class="LC_disc_action_left">';
924: my $escsymb=&escape($ressymb);
925: if ($visible) {
926: $discussion .= '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
927: if ($newpostsflag) {
928: $discussion .= '&previous='.$prevread;
929: }
930: $discussion .= &group_args($group);
931: $discussion .='">'.&mt('Threaded View').'</a> '.
932: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
933: if ($newpostsflag) {
934: $discussion .= '&previous='.$prevread;
935: }
936: $discussion .= &group_args($group);
937: $discussion .='">'.&mt('Chronological View').'</a> ';
938:
939: my $otherviewurl='/adm/feedback?cmd=sortfilter&symb='.$escsymb.'&inhibitmenu=yes&modal=yes';
940: if ($newpostsflag) {
941: $otherviewurl .= '&previous='.$prevread;
942: }
943: $otherviewurl .= &group_args($group);
944: $discussion .= &Apache::loncommon::modal_link($otherviewurl,&mt('Other Views ...'),800,340);
945: $discussion .= '<br />';
946: }
947: $discussion .='<a href="/adm/feedback?export='.$escsymb;
948: if ($newpostsflag) {
949: $discussion .= '&previous='.$prevread;
950: }
951: $discussion .= &group_args($group);
952: $discussion .= '">'.&mt('Export').'</a>';
953: if ($seehidden) {
954: $discussion .= ' ';
955: $discussion .='<a href="/adm/feedback?undeleteall='.$escsymb;
956: if ($newpostsflag) {
957: $discussion .= '&previous='.$prevread;
958: }
959: $discussion .= &group_args($group);
960: $discussion .= '">'.&mt('Undelete all deleted entries').'</a>';
961: }
962: $discussion.='</td>';
963: if ($newpostsflag) {
964: if (!$markondisp) {
965: $discussion .='<td class="LC_disc_action_right"><a href="/adm/preferences?action=changediscussions';
966: $discussion .= &group_args($group);
967: $discussion .= '">'.
968: &mt('My general preferences on what is marked as NEW').
969: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb;
970: $discussion .= &group_args($group);
971: $discussion .= '">'.&mt('Mark NEW posts no longer new').'</a></td>';
972: } else {
973: $discussion .= '<td> </td>';
974: }
975: } else {
976: $discussion .= '<td> </td>';
977: }
978: $discussion .= '</tr></table></td></tr>';
979: return $discussion;
980: }
981:
982: sub postingform_display {
983: my ($mode,$ressymb,$now,$subject,$comment,$outputtarget,$attachnum,
984: $currnewattach,$currdelold,$group,$crstype) = @_;
985: my $newattachmsg;
986: my %lt = &Apache::lonlocal::texthash(
987: 'note' => 'Note: in anonymous discussion, your name is visible only to course faculty',
988: 'title' => 'Title',
989: 'podi' => 'Post Discussion',
990: 'poan' => 'Post Anonymous Discussion',
991: 'newa' => 'New attachments',
992: );
993: if ($crstype eq 'Community') {
994: $lt{'note'} = &mt('Note: in anonymous discussion, your name is visible only to community facilitators');
995: }
996: my ($postingform,$textareaclass);
997: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
998: $postingform = &Apache::lonhtmlcommon::htmlareaselectactive();
999: $textareaclass = 'class="LC_richDefaultOff"';
1000: if ($env{'request.course.id'}) {
1001: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
1002: undef($textareaclass);
1003: }
1004: }
1005: }
1006: my $postanon;
1007: if (&Apache::lonnet::allowed('pac',$env{'request.course.id'}.
1008: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
1009: $postanon = '<input type="submit" name="anondiscuss" value="'.$lt{'poan'}.'" />';
1010: }
1011: $postingform .= (<<ENDDISCUSS);
1012: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
1013: $postanon<input type="hidden" name="symb" value="$ressymb" />
1014: <input type="hidden" name="sendit" value="true" />
1015: <input type="hidden" name="timestamp" value="$now" />
1016: <a name="newpost"></a>
1017: <font size="1">$lt{'note'}</font><br />
1018: <b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br />
1019: <textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
1020: ENDDISCUSS
1021: if ($env{'form.origpage'}) {
1022: $postingform .= '<input type="hidden" name="origpage" value="'.
1023: $env{'form.origpage'}.'" />'."\n";
1024: foreach my $att (@{$currnewattach}) {
1025: $postingform .= '<input type="hidden" name="currnewattach" '.
1026: 'value="'.$att.'" />'."\n";
1027: }
1028: }
1029: if (exists($env{'form.ref'})) {
1030: $postingform .= '<input type="hidden" name="ref" value="'.
1031: $env{'form.ref'}.'" />';
1032: }
1033: if ($group ne '') {
1034: $postingform .='<input type="hidden" name="group" value="'.$group.'" />';
1035: }
1036: my $blockblog = &Apache::loncommon::blocking_status('blogs');
1037: if (!$blockblog) {
1038: $postingform .= &add_blog_checkbox($crstype);
1039: }
1040: $postingform .= "</form>\n";
1041: $postingform .= &generate_attachments_button('',$attachnum,$ressymb,
1042: $now,$currnewattach,
1043: $currdelold,'',$mode,
1044: $blockblog);
1045: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
1046: $newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
1047: if (@{$currnewattach} > 1) {
1048: $newattachmsg .= '<ol>';
1049: foreach my $item (@{$currnewattach}) {
1050: $item =~ m#.*/([^/]+)$#;
1051: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
1052: }
1053: $newattachmsg .= '</ol>'."\n";
1054: } else {
1055: $$currnewattach[0] =~ m#.*/([^/]+)$#;
1056: $newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
1057: }
1058: }
1059: $postingform .= $newattachmsg;
1060: $postingform .= &generate_preview_button();
1061: return $postingform;
1062: }
1063:
1064: sub build_posting_display {
1065: my ($usernamesort,$subjectsort,$namesort,$notshown,$newitem,$dischash,$shown,$alldiscussion,$imsitems,$imsfiles,$roleinfo,$discussionitems,$replies,$depth,$posters,$maxdepth,$visible,$newpostsflag,$current,$status,$viewgrades,$seeid,$seehidden,$canvote,$prevread,$sortposts,$ressymb,$readkey,$showunmark,$showonlyunread,$totposters,$rolefilter,$sectionpick,$grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,$anonhash,$anoncnt,$group) = @_;
1066: my @original=();
1067: my @index=();
1068: my $skip_group_check = 0;
1069: my $symb=&Apache::lonenc::check_decrypt($ressymb);
1070: my $escsymb=&escape($ressymb);
1071: # These are the discussion contributions
1072: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1073: $env{'course.'.$env{'request.course.id'}.'.domain'},
1074: $env{'course.'.$env{'request.course.id'}.'.num'});
1075: my (%likes,%userlikes,%userunlikes,@theselikes,$oneplus,$twoplus,$oneminus,$twominus);
1076: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
1077: if ($seeid || $canvote) {
1078: # And these are the likes/unlikes
1079: %likes=&Apache::lonnet::dump('disclikes',
1080: $env{'course.'.$env{'request.course.id'}.'.domain'},
1081: $env{'course.'.$env{'request.course.id'}.'.num'},
1082: '^'.$symb.':');
1083: # Array with likes to figure out averages, etc.
1084: @theselikes=();
1085: # Hashes containing likes and unlikes for this user.
1086: %userlikes=();
1087: %userunlikes=();
1088: }
1089: # Is the user allowed to see the real name behind anonymous postings?
1090: my $see_anonymous =
1091: &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1092:
1093: if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
1094: $skip_group_check = 1;
1095: }
1096: # Deletions and hiddens are just lists. Split them up into a hash for quicker lookup
1097: my (%deletions,%hiddens);
1098: if ($contrib{'deleted'}) {
1099: my $deleted = $contrib{'deleted'};
1100: $deleted =~ s/^\.//;
1101: $deleted =~ s/\.$//;
1102: %deletions = map { $_ => 1 } (split(/\.\./,$deleted));
1103: }
1104: if ($contrib{'hidden'}) {
1105: my $hidden = $contrib{'hidden'};
1106: $hidden =~ s/^\.//;
1107: $hidden =~ s/\.$//;
1108: %hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
1109: }
1110: # Versions if store/restore are used to actually store the messages.
1111: if ($contrib{'version'}) {
1112: my $oldest = $contrib{'1:timestamp'};
1113: if ($prevread eq '0') {
1114: $prevread = $oldest-1;
1115: }
1116: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
1117: if ($sortposts) {
1118: ($skiptest,$roleregexp,$secregexp,$statusregexp) =
1119: &filter_regexp($rolefilter,$sectionpick,$statusfilter);
1120: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
1121: }
1122: my %votestyle;
1123: if ($seeid || $canvote) {
1124: # We need to go through this twice, first to get the likes/dislikes, then to actually build the display
1125: for (my $id=1;$id<=$contrib{'version'};$id++) {
1126: my $idx=$id;
1127: next if ($contrib{$idx.':deleted'});
1128: next if ($contrib{$idx.':hidden'});
1129: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
1130: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
1131: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1132: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
1133: if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
1134: $userlikes{$idx} = 1;
1135: }
1136: }
1137: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
1138: if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
1139: $userunlikes{$idx} = 1;
1140: }
1141: }
1142: }
1143: }
1144: }
1145: # Figure out average likes and standard deviation if there are enough
1146: # discussions to warrant that
1147: my $ave=0;
1148: my $stddev=10000;
1149: if ($#theselikes>1) {
1150: my $sum=0;
1151: my $num=$#theselikes+1;
1152: foreach my $thislike (@theselikes) {
1153: $sum+=$thislike;
1154: }
1155: $ave=$sum/$num;
1156: my $sumsq=0;
1157: foreach my $thislike (@theselikes) {
1158: $sumsq+=($thislike-$ave)*($thislike-$ave);
1159: }
1160: $stddev=sqrt($sumsq/$num);
1161: }
1162: # Now we know the average likes $ave and the standard deviation $stddev
1163: # Get the boundaries for markup
1164: $oneplus=$ave+$stddev;
1165: $twoplus=$ave+2.*$stddev;
1166: $oneminus=$ave-$stddev;
1167: $twominus=$ave-2.*$stddev;
1168: if ($#theselikes>1) {
1169: foreach my $class ('twoplus','oneplus','zero','oneminus','twominus') {
1170: my $fontstyle = $env{'course.'.$env{'request.course.id'}.'.discussion_post_fonts_'.$class};
1171: if ($fontstyle ne '') {
1172: my ($size,$weight,$style,$other) = split(/,/,$fontstyle);
1173: if ($size ne '') {
1174: $votestyle{$class} .= 'font-size: '.$size.';';
1175: }
1176: if ($weight ne '') {
1177: $votestyle{$class} .= 'font-weight: '.$weight.';';
1178: }
1179: if ($style ne '') {
1180: $votestyle{$class} .= 'font-style: '.$style.';';
1181: }
1182: if ($other ne '') {
1183: $votestyle{$class} .= $other;
1184: }
1185: if ($votestyle{$class} ne '') {
1186: $votestyle{$class} = 'style="'.$votestyle{$class}.'"';
1187: }
1188: }
1189: }
1190: }
1191: }
1192: #
1193: # This is now the real loop. Go through all entries, pick up what we need
1194: #
1195: for (my $id=1;$id<=$contrib{'version'};$id++) {
1196: my $idx=$id;
1197: next if ($contrib{$idx.':deleted'});
1198: next if ($contrib{$idx.':hidden'});
1199: # If we get here, we are actually going to display the message - we don't know where and we don't know if we display
1200: # previous edits, but it counts as one entry
1201: my $posttime = $contrib{$idx.':timestamp'};
1202: if ($prevread <= $posttime) {
1203: $$newpostsflag = 1;
1204: }
1205: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
1206: my $origindex='0.';
1207: my $numoldver=0;
1208: if ($contrib{$idx.':replyto'}) {
1209: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1210: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1211: # this is a follow-up message
1212: $original[$idx]=$original[$contrib{$idx.':replyto'}];
1213: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
1214: $origindex=$index[$contrib{$idx.':replyto'}];
1215: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
1216: } else {
1217: $original[$idx]=0;
1218: $$depth[$idx]=0;
1219: }
1220: } else {
1221: # this is an original message
1222: $original[$idx]=0;
1223: $$depth[$idx]=0;
1224: }
1225: if ($$replies[$$depth[$idx]]) {
1226: $$replies[$$depth[$idx]]++;
1227: } else {
1228: $$replies[$$depth[$idx]]=1;
1229: }
1230: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx})) {
1231: $$visible++;
1232: if ($contrib{$idx.':history'}) {
1233: if ($contrib{$idx.':history'} =~ /:/) {
1234: my @oldversions = split(/:/,$contrib{$idx.':history'});
1235: $numoldver = @oldversions;
1236: } else {
1237: $numoldver = 1;
1238: }
1239: }
1240: $$current = $numoldver;
1241: my %messages = ();
1242: my %subjects = ();
1243: my %attachtxt = ();
1244: my %allattachments = ();
1245: my ($screenname,$plainname,$showaboutme);
1246: my $sender = &mt('Anonymous');
1247: # Anonymous users getting number within a discussion
1248: # Since idx is in static order, this should give the same sequence every time.
1249: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
1250: unless ($$anonhash{$key}) {
1251: $anoncnt++;
1252: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
1253: }
1254: my ($message,$subject,$vgrlink,$ctlink);
1255: &get_post_contents(\%contrib,$idx,$seeid,$seehidden,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
1256:
1257:
1258: # Set up for sorting by subject
1259: unless ($outputtarget eq 'export') {
1260: $message=$messages{$numoldver};
1261: $message.=$attachtxt{$numoldver};
1262: $subject=$subjects{$numoldver};
1263: if ($message) {
1264: if ($hiddens{$idx}) {
1265: $message='<font color="#888888">'.$message.'</font>';
1266: if ($studenthidden) {
1267: $message .='<br /><br />Deleted by poster (student).';
1268: }
1269: }
1270:
1271: if ($subject eq '') {
1272: if (defined($$subjectsort{'__No subject'})) {
1273: push(@{$$subjectsort{'__No subject'}}, $idx);
1274: } else {
1275: @{$$subjectsort{'__No subject'}} = ("$idx");
1276: }
1277: } else {
1278: if (defined($$subjectsort{$subject})) {
1279: push(@{$$subjectsort{$subject}}, $idx);
1280: } else {
1281: @{$$subjectsort{$subject}} = ("$idx");
1282: }
1283: }
1284: if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
1285: if ($showaboutme) {
1286: $sender = &Apache::loncommon::aboutmewrapper(
1287: $plainname,
1288: $contrib{$idx.':sendername'},
1289: $contrib{$idx.':senderdomain'});
1290: } else {
1291: $sender = $plainname;
1292: }
1293: if ($see_anonymous) {
1294: $sender .= ' ('.$contrib{$idx.':sendername'}.':'.
1295: $contrib{$idx.':senderdomain'}.')';
1296: }
1297: $sender = '<b>'.$sender.'</b>';
1298: if ($contrib{$idx.':anonymous'}) {
1299: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
1300: $screenname;
1301: }
1302: if ($see_anonymous) {
1303: $sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1304: }
1305: # Set up for sorting by domain, then username
1306: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
1307: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
1308: }
1309: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
1310: push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
1311: } else {
1312: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
1313: }
1314: # Set up for sorting by last name, then first name
1315: my %names = &Apache::lonnet::get('environment',
1316: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
1317: ,$contrib{$idx.':sendername'});
1318: my $lastname = $names{'lastname'};
1319: my $firstname = $names{'firstname'};
1320: if ($lastname eq '') {
1321: $lastname = '_';
1322: }
1323: if ($firstname eq '') {
1324: $firstname = '_';
1325: }
1326: unless (defined($$namesort{$lastname})) {
1327: %{$$namesort{$lastname}} = ();
1328: }
1329: if (defined($$namesort{$lastname}{$firstname})) {
1330: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1331: } else {
1332: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1333: }
1334: if ($outputtarget ne 'tex') {
1335: # Add karma stars
1336: my $karma=&userkarma($contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
1337: for (my $i=1;$i<=$karma;$i++) {
1338: $sender.='<img border="0" src="/res/adm/pages/star.gif" alt="'.&mt('Contributor Kudos').'" />';
1339: }
1340: # Can people edit this?
1341: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1342: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1343: $sender.=' '.
1344: &discussion_link($ressymb,&mt('Edit'),'editdisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1345: unless ($seehidden) {
1346: my $grpargs = &group_args($group);
1347: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1348: $sender .= '">'.&mt('Delete').'</a>';
1349: }
1350: }
1351: }
1352: if ($seehidden) {
1353: if ($hiddens{$idx}) {
1354: unless ($studenthidden) {
1355: $sender.=' '.
1356: &discussion_link($ressymb,&mt('Make Visible'),'unhide',$idx,$$newpostsflag,$prevread,&group_args($group));
1357: }
1358: } else {
1359: $sender.=' '.
1360: &discussion_link($ressymb,&mt('Hide'),'hide',$idx,$$newpostsflag,$prevread,&group_args($group));
1361: }
1362: my $grpargs = &group_args($group);
1363: $sender.=
1364: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1365: $sender .= &mt('Delete').'</a>';
1366: }
1367: }
1368: } else {
1369: if ($screenname) {
1370: $sender='<i>'.$screenname.'</i>';
1371: } else {
1372: $sender='<i>'.$$anonhash{$key}.'</i>';
1373: }
1374: $sender = '<b>'.$sender.'</b>';
1375: # Set up for sorting by domain, then username for anonymous
1376: unless (defined($$usernamesort{'__anon'})) {
1377: %{$$usernamesort{'__anon'}} = ();
1378: }
1379: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1380: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1381: } else {
1382: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1383: }
1384: # Set up for sorting by last name, then first name for anonymous
1385: unless (defined($$namesort{'__anon'})) {
1386: %{$$namesort{'__anon'}} = ();
1387: }
1388: if (defined($$namesort{'__anon'}{'__anon'})) {
1389: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1390: } else {
1391: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1392: }
1393: }
1394: if ($outputtarget ne 'tex') {
1395: if (&discussion_open($status)) {
1396: if (($group ne '') &&
1397: (&check_group_priv($group,'pgd') eq 'ok')) {
1398: $sender.=' '.
1399: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1400: } elsif (&Apache::lonnet::allowed('pch',
1401: $env{'request.course.id'}.
1402: ($env{'request.course.sec'}?'/'.
1403: $env{'request.course.sec'}:''))) {
1404: $sender.=' '.
1405: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread);
1406: }
1407: }
1408: if ($viewgrades) {
1409: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1410: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1411: }
1412: if ($$dischash{$readkey}=~/\.$idx\./) {
1413: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1414: } else {
1415: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1416: }
1417: }
1418: }
1419: #figure out at what position this needs to print
1420: }
1421: if ($outputtarget eq 'export' || $message) {
1422: my $thisindex=$idx;
1423: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1424: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1425: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1426: }
1427: $$alldiscussion{$thisindex}=$idx;
1428: $$shown{$idx} = 0;
1429: $index[$idx]=$thisindex;
1430: }
1431: if ($outputtarget eq 'export') {
1432: %{$$imsitems{$idx}} = ();
1433: $$imsitems{$idx}{'isvisible'}='true';
1434: if ($hiddens{$idx}) {
1435: $$imsitems{$idx}{'isvisible'}='false';
1436: }
1437: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1438: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1439: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1440: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1441: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1442: $contrib{$idx.':sendername'}.':'.
1443: $contrib{$idx.':senderdomain'}.')';
1444: $$imsitems{$idx}{'isanonymous'}='false';
1445: if ($contrib{$idx.':anonymous'}) {
1446: $$imsitems{$idx}{'isanonymous'}='true';
1447: }
1448: $$imsitems{$idx}{'currversion'}=$numoldver;
1449: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1450: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1451: $$shown{$idx} = 1;
1452: }
1453: } else {
1454: if ($message) {
1455: my $spansize = 2;
1456: my ($uname,$udom);
1457: if ($showonlyunread && $prevread > $posttime) {
1458: $$notshown{$idx} = 1;
1459: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1460: $$notshown{$idx} = 1;
1461: } else {
1462: # apply filters
1463: $uname = $contrib{$idx.':sendername'};
1464: $udom = $contrib{$idx.':senderdomain'};
1465: my $poster = $uname.':'.$udom;
1466: if ($env{'form.totposters'} ne '') {
1467: if ($totposters == 0) {
1468: $$shown{$idx} = 0;
1469: } elsif ($totposters > 0) {
1470: if (grep/^$poster$/,@{$posters}) {
1471: $$shown{$idx} = 1;
1472: }
1473: }
1474: } elsif ($sortposts) {
1475: if ($skiptest) {
1476: $$shown{$idx} = 1;
1477: } else {
1478: foreach my $role (@{$$roleinfo{$poster}}) {
1479: if ($role =~ /^cc:/) {
1480: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1481: if ($role =~ /$cc_regexp/) {
1482: $$shown{$idx} = 1;
1483: last;
1484: }
1485: } elsif ($role =~ /^$rolematch$/) {
1486: $$shown{$idx} = 1;
1487: last;
1488: }
1489: }
1490: }
1491: if ($$shown{$idx} && !$skip_group_check) {
1492: my $showflag = 0;
1493: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1494: foreach my $grp (@{$grouppick}) {
1495: if (grep/^\Q$grp\E$/,
1496: keys(%{$$classgroups{$poster}{active}})) {
1497: $showflag = 1;
1498: last;
1499: }
1500: }
1501: }
1502: if ($showflag) {
1503: $$shown{$idx} = 1;
1504: } else {
1505: $$shown{$idx} = 0;
1506: }
1507: }
1508: } else {
1509: $$shown{$idx} = 1;
1510: }
1511: }
1512: unless ($$notshown{$idx} == 1) {
1513: if ($prevread > 0 && $prevread <= $posttime) {
1514: $$newitem{$idx} = 1;
1515: $$discussionitems[$idx] .= '<font color="#FF0000"><b>'.&mt('NEW').' </b></font>';
1516: } else {
1517: $$newitem{$idx} = 0;
1518: }
1519: $$discussionitems[$idx] .= '<b>'.$subject.'</b> '.
1520: $sender.' '.$vgrlink.' ('.
1521: &Apache::lonlocal::locallocaltime($posttime).')';
1522: if ($$dischash{$toggkey}) {
1523: $$discussionitems[$idx].=' '.$ctlink;
1524: }
1525: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1526: my $likestyle;
1527: if ($seeid || $canvote) {
1528: # Figure out size based on likes
1529: my $class = 'zero';
1530: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1531: if ($thislikes>$twoplus) {
1532: $class = 'twoplus';
1533: } elsif ($thislikes>$oneplus) {
1534: $class = 'oneplus';
1535: }
1536: if ($thislikes<$twominus) {
1537: $class = 'twominus';
1538: } elsif ($thislikes<$oneminus) {
1539: $class = 'oneminus';
1540: }
1541: $likestyle = $votestyle{$class};
1542: }
1543: # Actually glue in the message itself
1544: $$discussionitems[$idx].= '<br /><blockquote>'.
1545: "<div $likestyle>".
1546: $message.
1547: '</div></blockquote>';
1548: if ($canvote) {
1549: my $ownpost;
1550: if (($uname eq $env{'user.name'}) &&
1551: ($udom eq $env{'user.domain'})) {
1552: $ownpost = 1;
1553: }
1554: # Put in the like and unlike buttons
1555: if ($ownpost || (($hiddens{$idx}) && ($seehidden))) {
1556: my $novote;
1557: if ($ownpost) {
1558: $novote = &mt('No voting for your own posts.');
1559: } else {
1560: $novote = &mt('No voting for hidden posts.');
1561: }
1562: &html_escape(\$novote);
1563: $$discussionitems[$idx].=
1564: '<a href="javascript:alert('."'$novote'".');" style="text-decoration: none;">'.
1565: '<img border="0" src="/res/adm/pages/thumbsup_novote.png" alt="'.$novote.'" /> '.
1566: '<img border="0" src="/res/adm/pages/thumbsdown_novote.png" alt="'.$novote.'" /></a>';
1567:
1568: } else {
1569: if ($userlikes{$idx}) {
1570: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1571: } else {
1572: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1573: }
1574: if ($userunlikes{$idx}) {
1575: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1576: } else {
1577: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1578: }
1579: }
1580: }
1581: if ($seeid || $canvote) {
1582: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1583: if ($thislikes>0) {
1584: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1585: } elsif ($thislikes<0) {
1586: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1587: }
1588: }
1589: # If there is any history to this post, inform the reader
1590: if ($contrib{$idx.':history'}) {
1591: my @postversions = ();
1592: $$discussionitems[$idx] .= ' '.&mt('This post has been edited by the author.');
1593: if ($seehidden) {
1594: $$discussionitems[$idx] .= ' '.
1595: &discussion_link($ressymb,&mt('Display all versions'),'allversions',$idx,$$newpostsflag,$prevread,&group_args($group));
1596: }
1597: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1598: if ($contrib{$idx.':history'} =~ m/:/) {
1599: @postversions = split(/:/,$contrib{$idx.':history'});
1600: } else {
1601: @postversions = ("$contrib{$idx.':history'}");
1602: }
1603: for (my $i=0; $i<@postversions; $i++) {
1604: my $version = $i+1;
1605: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1606: }
1607: }
1608: # end of unless ($$notshown ...)
1609: }
1610: # end of if ($message) ...
1611: }
1612: # end of the else-branch of target being export
1613: }
1614: # end of unless hidden or deleted
1615: }
1616: # end of the loop over all discussion entries
1617: }
1618: # end of "if there actually are any discussions
1619: }
1620: # end of subroutine "build_posting_display"
1621: }
1622:
1623: sub filter_regexp {
1624: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1625: my ($roleregexp,$secregexp,$statusregexp);
1626: my $skiptest = 1;
1627: if (@{$rolefilter} > 0) {
1628: my @okrolefilter = ();
1629: foreach my $role (@{$rolefilter}) {
1630: unless ($role eq '') {
1631: push(@okrolefilter, $role);
1632: }
1633: }
1634: if (@okrolefilter > 0) {
1635: if (grep/^all$/,@okrolefilter) {
1636: $roleregexp='[^:]+';
1637: } else {
1638: if (@okrolefilter == 1) {
1639: $roleregexp=$okrolefilter[0];
1640: } else {
1641: $roleregexp='('.join('|',@okrolefilter).')';
1642: }
1643: $skiptest = 0;
1644: }
1645: }
1646: }
1647: if (@{$sectionpick} > 0) {
1648: my @oksectionpick = ();
1649: foreach my $sec (@{$sectionpick}) {
1650: unless ($sec eq '') {
1651: push(@oksectionpick, $sec);
1652: }
1653: }
1654: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1655: if (@oksectionpick == 1) {
1656: $secregexp = $oksectionpick[0];
1657: } else {
1658: $secregexp .= '('.join('|',@oksectionpick).')';
1659: }
1660: $skiptest = 0;
1661: } else {
1662: $secregexp .= '[^:]*';
1663: }
1664: }
1665:
1666: if (defined($statusfilter) && $statusfilter ne '') {
1667: if ($statusfilter eq 'all') {
1668: $statusregexp = '[^:]+';
1669: } else {
1670: $statusregexp = $statusfilter;
1671: $skiptest = 0;
1672: }
1673: }
1674: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1675: }
1676:
1677:
1678: sub get_post_contents {
1679: my ($contrib,$idx,$seeid,$seehidden,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1680: my $discussion = '';
1681: my $start=$numver;
1682: my $end=$numver + 1;
1683: %{$$imsfiles{$idx}}=();
1684: if ($type eq 'allversions') {
1685: unless($seehidden) {
1686: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1687: return $discussion;
1688: }
1689: }
1690: # $$screenname=&Apache::loncommon::screenname(
1691: # $$contrib{$idx.':sendername'},
1692: # $$contrib{$idx.':senderdomain'});
1693: $$plainname=&Apache::loncommon::nickname(
1694: $$contrib{$idx.':sendername'},
1695: $$contrib{$idx.':senderdomain'});
1696: $$screenname=$$contrib{$idx.':screenname'};
1697: $$showaboutme = &Apache::lonnet::usertools_access($$contrib{$idx.':sendername'},
1698: $$contrib{$idx.':senderdomain'},
1699: 'aboutme');
1700: my $sender = $$plainname;
1701: if ($$showaboutme) {
1702: $sender = &Apache::loncommon::aboutmewrapper(
1703: $$plainname,
1704: $$contrib{$idx.':sendername'},
1705: $$contrib{$idx.':senderdomain'});
1706: }
1707: if ($seeid) {
1708: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1709: $$contrib{$idx.':senderdomain'}.')';
1710: }
1711: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1712: my @postversions = ();
1713: if ($type eq 'allversions' || $type eq 'export') {
1714: $start = 0;
1715: if ($$contrib{$idx.':history'}) {
1716: @postversions = split(/:/,$$contrib{$idx.':history'});
1717: }
1718: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1719: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1720: push(@postversions,$$contrib{$idx.':timestamp'});
1721: $end = @postversions;
1722: } else {
1723: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1724: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1725: }
1726:
1727: if ($$contrib{$idx.':anonymous'}) {
1728: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1729: }
1730: if ($type eq 'allversions') {
1731: $discussion=('<b>'.$sender.'</b><br /><ul>');
1732: }
1733: for (my $i=$start; $i<$end; $i++) {
1734: my ($timesent,$attachmsg);
1735: my %currattach = ();
1736: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1737: unless (&contains_block_html($messages->{$i})) {
1738: &newline_to_br(\$messages->{$i});
1739: }
1740: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1741: $$subjects{$i}=~s/\n/\<br \/\>/g;
1742: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1743: if ($attachmenturls) {
1744: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1745: }
1746: if ($type eq 'export') {
1747: $$imsfiles{$idx}{$i} = '';
1748: if ($attachmsg) {
1749: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1750: foreach my $key (sort(keys(%currattach))) {
1751: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1752: my $fname = $1.$3.'/'.$4;
1753: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1754: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1755: }
1756: }
1757: }
1758: } else {
1759: if ($attachmsg) {
1760: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1761: } else {
1762: $$attachtxt{$i} = '';
1763: }
1764: }
1765: if ($type eq 'allversions') {
1766: $discussion.= <<"END";
1767: <li><b>$$subjects{$i}</b>, $timesent<br />
1768: $$messages{$i}<br />
1769: $$attachtxt{$i}</li>
1770: END
1771: }
1772: }
1773: if ($type eq 'allversions') {
1774: $discussion.='</ul>';
1775: return $discussion;
1776: } else {
1777: return;
1778: }
1779: }
1780:
1781: sub replicate_attachments {
1782: my ($attachrefs,$tempexport) = @_;
1783: my $response;
1784: foreach my $id (keys(%{$attachrefs})) {
1785: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1786: my $path = $tempexport;
1787: my $tail = $1.'/'.$2.$4;
1788: my @extras = split(/\//,$tail);
1789: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1790: if (!-e $destination) {
1791: my $i= 0;
1792: while ($i<@extras) {
1793: $path .= '/'.$extras[$i];
1794: if (!-e $path) {
1795: mkdir($path,0700);
1796: }
1797: $i ++;
1798: }
1799: my ($content,$rtncode);
1800: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1801: if ($uploadreply eq 'ok') {
1802: my $attachcopy;
1803: if ($attachcopy = Apache::File->new('>'.$destination)) {
1804: print $attachcopy $content;
1805: close($attachcopy);
1806: } else {
1807: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1808: }
1809: } else {
1810: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1811: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1812: }
1813: }
1814: }
1815: }
1816: return $response;
1817: }
1818:
1819: sub mail_screen {
1820: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1821: if (exists($env{'form.origpage'})) {
1822: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1823: }
1824:
1825: my %lt = &Apache::lonlocal::texthash(
1826: 'myqu' => 'Question/comment/feedback:',
1827: 'reta' => 'Retained attachments',
1828: 'atta' => 'Attachment',
1829: );
1830: if ($env{'form.editdisc'} || $env{'form.replydisc'}){
1831: $lt{'myqu'} = &mt('Post Discussion');
1832: }
1833: my $restitle = &get_resource_title($caller_symb,$feedurl);
1834: my $quote='';
1835: my $subject = '';
1836: my $comment = '';
1837: my $prevtag = '';
1838: my $parentmsg = '';
1839: my ($symb,$idx,$attachmenturls);
1840: my $numoldver = 0;
1841: my $attachmsg = '';
1842: my $newattachmsg = '';
1843: my @currnewattach = ();
1844: my @currdelold = ();
1845: my @keepold = ();
1846: my %attachments = ();
1847: my %currattach = ();
1848: my $attachnum = 0;
1849: my $anonchk = (<<END);
1850: function anonchk() {
1851: for (var i=0; i < document.mailform.discuss.length; i++) {
1852: if (document.mailform.discuss[i].checked) {
1853: document.attachment.discuss.value =
1854: document.mailform.discuss[i].value;
1855: }
1856: }
1857: if (document.mailform.blog.checked) {
1858: document.attachment.blog.value = 1;
1859: }
1860: return
1861: }
1862: END
1863: my $anonscript;
1864: if (exists($env{'form.origpage'})) {
1865: $anonscript = (<<END);
1866: function setposttype() {
1867: var disc = "$env{'form.discuss'}";
1868: for (var i=0; i < document.mailform.discuss.length; i++) {
1869: if (disc == document.mailform.discuss[i].value) {
1870: document.mailform.discuss[i].checked = 1;
1871: }
1872: }
1873: var blog = "$env{'form.blog'}";
1874: if (blog == 1) {
1875: document.mailform.blog.checked=1;
1876: }
1877: return
1878: }
1879: END
1880: } else {
1881: $anonscript = (<<END);
1882: function setposttype() {
1883: return
1884: }
1885: END
1886: }
1887: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1888: if ($env{'form.replydisc'}) {
1889: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1890: } else {
1891: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1892: }
1893: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1894: $env{'course.'.$env{'request.course.id'}.'.domain'},
1895: $env{'course.'.$env{'request.course.id'}.'.num'});
1896: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1897: my $numoldver = 0;
1898: if ($contrib{$idx.':history'}) {
1899: if ($contrib{$idx.':history'} =~ /:/) {
1900: my @oldversions = split(/:/,$contrib{$idx.':history'});
1901: $numoldver = @oldversions;
1902: } else {
1903: $numoldver = 1;
1904: }
1905: }
1906: if ($idx > 0) {
1907: my (%msgversions,%subversions,$htmldecode);
1908: $htmldecode = 0;
1909: if ($env{'form.replydisc'}) {
1910: $htmldecode = 1;
1911: }
1912: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1913: &get_post_versions(\%subversions,$contrib{$idx.':subject'},$htmldecode,
1914: $numoldver);
1915: $subject = $subversions{$numoldver};
1916: if ($env{'form.replydisc'}) {
1917: $quote = $msgversions{$numoldver};
1918: $subject = &HTML::Entities::encode(&mt('Re: ').$subject,'<>&"');
1919: } else {
1920: $comment = $msgversions{$numoldver};
1921: }
1922: }
1923: if ($env{'form.editdisc'}) {
1924: $attachmenturls = $contrib{$idx.':attachmenturl'};
1925: if (defined($contrib{$idx.':replyto'})) {
1926: $parentmsg = $contrib{$idx.':replyto'};
1927: }
1928: unless (exists($env{'form.origpage'})) {
1929: my $anonflag = 'nonanon';
1930: if ($contrib{$idx.':anonymous'}) {
1931: $anonflag = 'anon';
1932: }
1933: $anonscript = (<<END);
1934: function setposttype () {
1935: var currtype = "$anonflag";
1936: for (var i=0; i<document.mailform.discuss.length; i++) {
1937: if (document.mailform.elements.discuss[i].value == currtype ) {
1938: document.mailform.elements.discuss[i].checked=1;
1939: }
1940: }
1941: return
1942: }
1943: END
1944: }
1945: }
1946: }
1947: if ($env{'form.previous'}) {
1948: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1949: }
1950: }
1951:
1952: if ($env{'form.origpage'}) {
1953: $subject = &unescape($env{'form.subject'});
1954: $comment = &unescape($env{'form.comment'});
1955: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1956: }
1957: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1,($env{'form.modal'}?'popup':0));
1958: my $send=&mt('Send');
1959: my $alert = &mt('Please select a feedback type.');
1960: &js_escape(\$alert);
1961: my $js= <<END;
1962: <script type="text/javascript">
1963: //<!--
1964: function gosubmit() {
1965: var rec=0;
1966: if (typeof(document.mailform.elements.discuss)!="undefined") {
1967: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1968: if (document.mailform.elements.discuss.checked ) {
1969: rec=1;
1970: }
1971: } else {
1972: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1973: if (document.mailform.elements.discuss[i].checked ) {
1974: rec=1;
1975: }
1976: }
1977: }
1978: }
1979: if (typeof(document.mailform.elements.blog)!="undefined") {
1980: if (document.mailform.elements.blog.checked) {
1981: rec=1;
1982: }
1983: }
1984:
1985: if (rec) {
1986: if (typeof(document.mailform.onsubmit)=='function') {
1987: document.mailform.onsubmit();
1988: }
1989: document.mailform.submit();
1990: } else {
1991: alert('$alert');
1992: }
1993: }
1994: $anonchk
1995: $anonscript
1996: //-->
1997: </script>
1998: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
1999: END
2000:
2001: my ($textareaheader,$textareaclass);
2002: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
2003: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
2004: $textareaclass = 'class="LC_richDefaultOff"';
2005: if ($env{'request.course.id'}) {
2006: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
2007: undef($textareaclass);
2008: }
2009: }
2010: }
2011:
2012: # Breadcrumbs
2013: my $brcrum = [{'href' => '',
2014: 'text' => 'Resource Feedback and Discussion'}];
2015:
2016: my %onload = ('onload' => 'window.focus();setposttype();');
2017: my %parms=('add_entries' => \%onload);
2018: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
2019: my $start_page=
2020: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms);
2021:
2022: if ($quote ne '') {
2023: $quote = &HTML::Entities::decode($quote);
2024: unless (&contains_block_html($quote)) {
2025: &newline_to_br(\$quote);
2026: }
2027: $quote=&Apache::lonhtmlcommon::start_pick_box().
2028: &Apache::lonhtmlcommon::row_title(&mt('Quote')).
2029: &Apache::lontexconvert::msgtexconverted($quote).
2030: &Apache::lonhtmlcommon::row_closure(1).
2031: &Apache::lonhtmlcommon::end_pick_box();
2032: }
2033: my $header='';
2034: unless ($env{'form.modal'}) {
2035: $header="<h2><tt>$restitle</tt></h2>";
2036: }
2037: $r->print(<<END);
2038: $start_page
2039: <h1>$lt{'myqu'}</h1>
2040: $header
2041: <form action="/adm/feedback" method="post" name="mailform"
2042: enctype="multipart/form-data">
2043: $prevtag
2044: <input type="hidden" name="postdata" value="$feedurl" />
2045: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2046: END
2047: if ($env{'form.replydisc'}) {
2048: $r->print(<<END);
2049: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
2050: END
2051: } elsif ($env{'form.editdisc'}) {
2052: $r->print(<<END);
2053: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
2054: <input type="hidden" name="parentmsg" value="$parentmsg" />
2055: END
2056: }
2057: $r->print(<<END);
2058: $options
2059: <br />
2060: END
2061: $r->print(&Apache::lonhtmlcommon::start_pick_box());
2062: $r->print(<<END);
2063: $quote
2064: <p>
2065: $textareaheader
2066: </p>
2067: <p>
2068: $latexHelp
2069: </p>
2070: <p>
2071: END
2072:
2073:
2074: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
2075: $r->print('<input type="text" name="subject" size="30" value="'.
2076: $subject.'" /></p>');
2077: $r->print(&Apache::lonhtmlcommon::row_closure());
2078: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
2079: $r->print('<textarea name="comment" id="comment" cols="55" rows="10" '.
2080: $textareaclass.'>'.$comment.
2081: '</textarea>');
2082: $r->print(&Apache::lonhtmlcommon::row_closure(1));
2083: $r->print(&Apache::lonhtmlcommon::end_pick_box());
2084:
2085: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
2086: if ($env{'form.origpage'}) {
2087: foreach my $attach (@currnewattach) {
2088: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
2089: }
2090: foreach my $oldatt (@currdelold) {
2091: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
2092: }
2093: }
2094: if ($env{'form.editdisc'}) {
2095: if ($attachmenturls) {
2096: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
2097: $attachnum = scalar(keys(%currattach));
2098: foreach my $key (keys(%currattach)) {
2099: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
2100: }
2101: }
2102: }
2103: } else {
2104: $r->print(<<END);
2105: <p>
2106: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" class="LC_flUpload" />
2107: <input type="hidden" id="LC_free_space" value="131072" />
2108: </p>
2109: END
2110: }
2111: if (exists($env{'form.group'})) {
2112: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2113: }
2114: if (exists($env{'form.ref'})) {
2115: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2116: }
2117: $r->print(<<END);
2118: <input type="hidden" name="sendit" value="1" /><br /><br />
2119: <input type="button" value="$send" onclick='gosubmit();' />
2120: </form>
2121: END
2122: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
2123: my $now = time;
2124: my $ressymb = $symb;
2125: &Apache::lonenc::check_encrypt(\$ressymb);
2126: my $postidx = '';
2127: if ($env{'form.editdisc'}) {
2128: $postidx = $idx;
2129: }
2130: if (@currnewattach > 0) {
2131: $attachnum += @currnewattach;
2132: }
2133: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2134: if ($attachnum > 0) {
2135: if (@currnewattach > 0) {
2136: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
2137: if (@currnewattach > 1) {
2138: $newattachmsg .= '<ol>';
2139: foreach my $item (@currnewattach) {
2140: $item =~ m#.*/([^/]+)$#;
2141: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2142: }
2143: $newattachmsg .= '</ol>'."\n";
2144: } else {
2145: $currnewattach[0] =~ m#.*/([^/]+)$#;
2146: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2147: }
2148: }
2149: if ($attachmsg) {
2150: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2151: }
2152: if ($newattachmsg) {
2153: $r->print("$newattachmsg");
2154: }
2155: }
2156: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
2157: }
2158: $r->print(&generate_preview_button().
2159: &Apache::loncommon::end_page());
2160:
2161: }
2162:
2163: sub print_display_options {
2164: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2165: &Apache::loncommon::content_type($r,'text/html');
2166: $r->send_http_header;
2167:
2168: my $function = &Apache::loncommon::get_users_function();
2169: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2170: $env{'user.domain'});
2171:
2172: my %lt = &Apache::lonlocal::texthash(
2173: 'pref' => 'Display Preference',
2174: 'curr' => 'Current setting ',
2175: 'actn' => 'Action',
2176: 'deff' => 'Default for all discussions',
2177: 'prca' => 'Preferences can be set for this discussion that determine ....',
2178: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2179: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2180: 'wipa' => 'Whether individual posts can be marked as read/unread',
2181: 'allposts' => 'All posts',
2182: 'unread' => 'New posts only',
2183: 'unmark' => 'Posts not marked read',
2184: 'ondisp' => 'Once displayed',
2185: 'onmark' => 'Once marked not NEW',
2186: 'toggon' => 'Shown',
2187: 'toggoff' => 'Not shown',
2188: 'disa' => 'Posts displayed?',
2189: 'npmr' => 'New posts cease to be identified as "NEW"?',
2190: 'dotm' => 'Option to mark each post as read/unread?',
2191: 'chgt' => 'Change to ',
2192: 'mkdf' => 'Set to ',
2193: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2194: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2195: );
2196: my %js_lt = &Apache::lonlocal::texthash(
2197: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2198: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2199: );
2200: &js_escape(\%js_lt);
2201:
2202: my $dispchangeA = $lt{'unread'};
2203: my $dispchangeB = $lt{'unmark'};
2204: my $markchange = $lt{'ondisp'};
2205: my $toggchange = $lt{'toggon'};
2206: my $currdisp = $lt{'allposts'};
2207: my $currmark = $lt{'onmark'};
2208: my $discdisp = 'allposts';
2209: my $discmark = 'onmark';
2210: my $currtogg = $lt{'toggoff'};
2211: my $disctogg = 'toggoff';
2212:
2213: if ($dispchgA eq 'allposts') {
2214: $dispchangeA = $lt{'allposts'};
2215: $currdisp = $lt{'unread'};
2216: $discdisp = 'unread';
2217: }
2218:
2219: if ($markchg eq 'markonread') {
2220: $markchange = $lt{'onmark'};
2221: $currmark = $lt{'ondisp'};
2222: $discmark = 'ondisp';
2223: }
2224:
2225: if ($dispchgB eq 'onlyunread') {
2226: $dispchangeB = $lt{'unread'};
2227: $currdisp = $lt{'unmark'};
2228: $discdisp = 'unmark';
2229: }
2230: if ($toggchg eq 'toggoff') {
2231: $toggchange = $lt{'toggoff'};
2232: $currtogg = $lt{'toggon'};
2233: $disctogg = 'toggon';
2234: }
2235:
2236: my $js = <<END;
2237: <script type="text/javascript">
2238: function discdispChk(caller) {
2239: var disctogg = '$toggchg'
2240: if (caller == 0) {
2241: if (document.modifydisp.discdisp[0].checked == true) {
2242: if (document.modifydisp.discdisp[1].checked == true) {
2243: document.modifydisp.discdisp[1].checked = false
2244: }
2245: }
2246: }
2247: if (caller == 1) {
2248: if (document.modifydisp.discdisp[1].checked == true) {
2249: if (document.modifydisp.discdisp[0].checked == true) {
2250: document.modifydisp.discdisp[0].checked = false
2251: }
2252: if (disctogg == 'toggon') {
2253: document.modifydisp.disctogg.checked = true
2254: }
2255: if (disctogg == 'toggoff') {
2256: document.modifydisp.disctogg.checked = false
2257: }
2258: }
2259: }
2260: if (caller == 2) {
2261: var dispchgB = '$dispchgB'
2262: if (disctogg == 'toggoff') {
2263: if (document.modifydisp.disctogg.checked == true) {
2264: if (dispchgB == 'onlyunmark') {
2265: document.modifydisp.discdisp[1].checked = false
2266: }
2267: }
2268: }
2269: }
2270: }
2271:
2272: function setDisp() {
2273: var prev = "$previous"
2274: var chktotal = 0
2275: if (document.modifydisp.discdisp[0].checked == true) {
2276: document.modifydisp.$dispchgA.value = "$symb"
2277: chktotal ++
2278: }
2279: if (document.modifydisp.discdisp[1].checked == true) {
2280: document.modifydisp.$dispchgB.value = "$symb"
2281: chktotal ++
2282: }
2283: if (document.modifydisp.discmark.checked == true) {
2284: document.modifydisp.$markchg.value = "$symb"
2285: chktotal ++
2286: }
2287: if (document.modifydisp.disctogg.checked == true) {
2288: document.modifydisp.$toggchg.value = "$symb"
2289: chktotal ++
2290: }
2291: if (chktotal > 0) {
2292: document.modifydisp.submit()
2293: } else {
2294: if(confirm("$js_lt{'yhni'}. \\n$js_lt{'ywbr'}")) {
2295: if (prev > 0) {
2296: location.href = "$feedurl?previous=$previous"
2297: } else {
2298: location.href = "$feedurl"
2299: }
2300: }
2301: }
2302: }
2303: </script>
2304: END
2305:
2306:
2307: my $start_page =
2308: &Apache::loncommon::start_page('Discussion display options',$js);
2309: my $end_page =
2310: &Apache::loncommon::end_page();
2311: $r->print(<<END);
2312: $start_page
2313: <form name="modifydisp" method="post" action="/adm/feedback">
2314: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2315: <br />
2316: END
2317: $r->print(&Apache::loncommon::start_data_table());
2318: $r->print(<<END);
2319: <tr>
2320: <th>$lt{'pref'}</td>
2321: <th>$lt{'curr'}</td>
2322: <th>$lt{'actn'}?</td>
2323: </tr>
2324: END
2325: $r->print(&Apache::loncommon::start_data_table_row());
2326: $r->print(<<END);
2327: <td>$lt{'disa'}</td>
2328: <td>$lt{$discdisp}</td>
2329: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2330: <br />
2331: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2332: </td>
2333: END
2334: $r->print(&Apache::loncommon::end_data_table_row());
2335: $r->print(&Apache::loncommon::start_data_table_row());
2336: $r->print(<<END);
2337: <td>$lt{'npmr'}</td>
2338: <td>$lt{$discmark}</td>
2339: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2340: END
2341: $r->print(&Apache::loncommon::end_data_table_row());
2342: $r->print(&Apache::loncommon::start_data_table_row());
2343: $r->print(<<END);
2344: <td>$lt{'dotm'}</td>
2345: <td>$lt{$disctogg}</td>
2346: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2347: END
2348: my $save = &mt('Save');
2349: $r->print(&Apache::loncommon::end_data_table_row());
2350: $r->print(&Apache::loncommon::end_data_table());
2351: $r->print(<<END);
2352: <br />
2353: <br />
2354: <input type="hidden" name="symb" value="$symb" />
2355: <input type="hidden" name="previous" value="$previous" />
2356: <input type="hidden" name="$dispchgA" value="" />
2357: <input type="hidden" name="$dispchgB" value="" />
2358: <input type="hidden" name="$markchg" value="" />
2359: <input type="hidden" name="$toggchg" value="" />
2360: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2361: END
2362: if (exists($env{'form.group'})) {
2363: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2364: }
2365: if (exists($env{'form.ref'})) {
2366: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2367: }
2368: $r->print("
2369: <br />
2370: <br />
2371: </form>
2372: $end_page
2373: ");
2374: return;
2375: }
2376:
2377: sub print_sortfilter_options {
2378: my ($r,$symb,$previous,$feedurl) = @_;
2379:
2380: &Apache::loncommon::content_type($r,'text/html');
2381: $r->send_http_header;
2382:
2383: &Apache::lonenc::check_encrypt(\$symb);
2384: my @sections;
2385: my $section_sel = '';
2386: my $numvisible = 5;
2387: my @groups;
2388: my $group_sel = '';
2389: my $numgroupvis = 5;
2390: my %sectioncount = &Apache::loncommon::get_sections();
2391: my @courseroles = qw(st ad ep ta in);
2392: my $crstype = &Apache::loncommon::course_type();
2393: my $ccrole = 'cc';
2394: if ($crstype eq 'Community') {
2395: $ccrole = 'co';
2396: }
2397: push(@courseroles,$ccrole);
2398:
2399: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2400: @sections = ('all',$env{'request.course.sec'});
2401: $numvisible = 2;
2402: } else {
2403: @sections = sort {$a cmp $b} keys(%sectioncount);
2404: if (scalar(@sections) < 4) {
2405: $numvisible = scalar(@sections) + 1;
2406: }
2407: unshift(@sections,'all'); # Put 'all' at the front of the list
2408:
2409: }
2410: foreach my $sec (@sections) {
2411: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2412: }
2413:
2414: if (&check_group_priv() eq 'ok') {
2415: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2416: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2417: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2418: @groups = sort {$a cmp $b} keys(%curr_groups);
2419: if (scalar(@groups) < 4) {
2420: $numgroupvis = scalar(@groups) + 1;
2421: }
2422: unshift(@groups,'all'); # Put 'all' at the front of the list
2423: } else {
2424: my @coursegroups = split(/:/,$env{'request.course.groups'});
2425: if (@coursegroups > 0) {
2426: @coursegroups = sort {$a cmp $b} @coursegroups;
2427: @groups = ('all',@coursegroups);
2428: if (scalar(@groups) < 4) {
2429: $numgroupvis = scalar(@groups) + 1;
2430: }
2431: } else {
2432: @groups = ('all');
2433: $numgroupvis = 1;
2434: }
2435: }
2436: foreach my $group (@groups) {
2437: $group_sel .= " <option value=\"$group\">$group</option>\n";
2438: }
2439:
2440: my $function = &Apache::loncommon::get_users_function();
2441: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2442: $env{'user.domain'});
2443: my %lt = &Apache::lonlocal::texthash(
2444: 'diop' => 'Display Options',
2445: 'curr' => 'Current setting ',
2446: 'actn' => 'Action',
2447: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2448: 'soor' => 'Sort order',
2449: 'spur' => 'Specific user roles',
2450: 'sprs' => 'Specific role status',
2451: 'spse' => 'Specific sections',
2452: 'spgr' => 'Specific groups',
2453: 'psub' => 'Pick specific users (by name)',
2454: 'shal' => 'Show a list of current posters',
2455: 'stor' => 'Save changes',
2456: );
2457:
2458: my %sort_types = ();
2459: my %role_types = ();
2460: my %status_types = ();
2461: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2462:
2463: my $js = <<END;
2464: <script type="text/javascript">
2465: function verifyFilter() {
2466: var rolenum = 0
2467: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2468: if (document.modifyshown.rolefilter.options[i].selected == true) {
2469: rolenum ++
2470: }
2471: }
2472: if (rolenum == 0) {
2473: document.modifyshown.rolefilter.options[0].selected = true
2474: }
2475:
2476: var secnum = 0
2477: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2478: if (document.modifyshown.sectionpick.options[i].selected == true) {
2479: secnum ++
2480: }
2481: }
2482: if (secnum == 0) {
2483: document.modifyshown.sectionpick.options[0].selected = true
2484: }
2485:
2486: var grpnum = 0
2487: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2488: if (document.modifyshown.grouppick.options[i].selected == true) {
2489: grpnum ++
2490: }
2491: }
2492: if (grpnum == 0) {
2493: document.modifyshown.grouppick.options[0].selected = true
2494: }
2495:
2496: document.modifyshown.submit();
2497: }
2498: </script>
2499: END
2500:
2501: my $start_page=
2502: &Apache::loncommon::start_page('Discussion options',$js);
2503: my $end_page=
2504: &Apache::loncommon::end_page();
2505:
2506: $r->print(<<END);
2507: $start_page
2508: <form name="modifyshown" method="post" action="/adm/feedback">
2509: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2510: <br />
2511: <table border="0">
2512: <tr>
2513: <th>$lt{'soor'}</th>
2514: <th> </th>
2515: <th>$lt{'sprs'}</th>
2516: <th> </th>
2517: <th>$lt{'spur'}</th>
2518: <th> </th>
2519: <th>$lt{'spse'}</th>
2520: <th> </th>
2521: <th>$lt{'spgr'}</th>
2522: <th> </th>
2523: <th>$lt{'psub'}</th>
2524: </tr>
2525: <tr>
2526: <td align="center" valign="top">
2527: <select name="sortposts">
2528: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2529: <option value="descdate">$sort_types{'descdate'}</option>
2530: <option value="thread">$sort_types{'thread'}</option>
2531: <option value="subject">$sort_types{'subject'}</option>
2532: <option value="username">$sort_types{'username'}</option>
2533: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2534: </select>
2535: </td>
2536: <td> </td>
2537: <td align="center" valign="top">
2538: <select name="statusfilter">
2539: <option value="all" selected="selected">$status_types{'all'}</option>
2540: <option value="Active">$status_types{'Active'}</option>
2541: <option value="Expired">$status_types{'Expired'}</option>
2542: <option value="Future">$status_types{'Future'}</option>
2543: </select>
2544: </td>
2545: <td> </td>
2546: <td align="center" valign="top">
2547: <select name="rolefilter" multiple="multiple" size="5">
2548: <option value="all">$role_types{'all'}</option>
2549: <option value="st">$role_types{'st'}</option>
2550: <option value="$ccrole">$role_types{$ccrole}</option>
2551: <option value="in">$role_types{'in'}</option>
2552: <option value="ta">$role_types{'ta'}</option>
2553: <option value="ep">$role_types{'ep'}</option>
2554: <option value="ad">$role_types{'ad'}</option>
2555: <option value="cr">$role_types{'cr'}</option>
2556: </select>
2557: </td>
2558: <td> </td>
2559: <td align="center" valign="top">
2560: <select name="sectionpick" multiple="multiple" size="$numvisible">
2561: $section_sel
2562: </select>
2563: </td>
2564: <td> </td>
2565: <td align="center" valign="top">
2566: <select name="grouppick" multiple="multiple" size="$numvisible">
2567: $group_sel
2568: </select>
2569: </td>
2570: <td> </td>
2571: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2572: </tr>
2573: </table>
2574: <br />
2575: <input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
2576: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2577: <input type="hidden" name="previous" value="$previous" />
2578: <input type="hidden" name="applysort" value="$symb" />
2579: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2580: END
2581: if (exists($env{'form.group'})) {
2582: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2583: }
2584: if (exists($env{'form.ref'})) {
2585: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2586: }
2587: $r->print("
2588: <br />
2589: <br />
2590: </form>
2591: $end_page
2592: ");
2593: }
2594:
2595: sub print_showposters {
2596: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2597:
2598: &Apache::loncommon::content_type($r,'text/html');
2599: $r->send_http_header;
2600:
2601: &Apache::lonenc::check_encrypt(\$symb);
2602: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2603: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2604: my $group = $env{'form.group'};
2605: my $ressymb = &wrap_symb($symb);
2606: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
2607: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2608: $cdom,$cnum);
2609: my %namesort = ();
2610: my %postcounts = ();
2611:
2612: my %lt = &Apache::lonlocal::texthash(
2613: sele => 'Select',
2614: full => 'Fullname',
2615: usdo => 'Username:domain',
2616: post => 'Posts',
2617: );
2618: if ($contrib{'version'}) {
2619: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2620: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2621: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2622: unless ((($hidden) && (!$seehidden)) || ($deleted)) {
2623: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2624: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2625: my $lastname = $names{'lastname'};
2626: my $firstname = $names{'firstname'};
2627: if ($lastname eq '') {
2628: $lastname = '_';
2629: }
2630: if ($firstname eq '') {
2631: $firstname = '_';
2632: }
2633: unless (defined($namesort{$lastname})) {
2634: %{$namesort{$lastname}} = ();
2635: }
2636: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2637: $postcounts{$poster} ++;
2638: if (defined($namesort{$lastname}{$firstname})) {
2639: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2640: push(@{$namesort{$lastname}{$firstname}}, $poster);
2641: }
2642: } else {
2643: @{$namesort{$lastname}{$firstname}} = ("$poster");
2644: }
2645: }
2646: }
2647: }
2648: }
2649:
2650: my $start_page = &Apache::loncommon::start_page('Discussion options');
2651: my $table_start =&Apache::loncommon::start_data_table();
2652: $r->print(<<END);
2653: $start_page
2654: <form name="pickpostersform" method="post" action="">
2655: <br />
2656: $table_start
2657: <tr>
2658: <th>#</th>
2659: <th>$lt{'sele'}</th>
2660: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2661: <th>$lt{'post'}</th>
2662: </tr>
2663: END
2664: my $count = 0;
2665: foreach my $last (sort(keys(%namesort))) {
2666: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2667: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2668: my ($uname,$udom) = split(/:/,$user);
2669: if (!$uname || !$udom) {
2670: next;
2671: } else {
2672: $count ++;
2673: $r->print(&Apache::loncommon::start_data_table_row().
2674: '<td align="right">'.$count.'</td>
2675: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2676: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2677: <td>'.$postcounts{$user}.'</td>'.
2678: &Apache::loncommon::end_data_table_row());
2679: }
2680: }
2681: }
2682: }
2683: $r->print(&Apache::loncommon::end_data_table());
2684: my $end_page = &Apache::loncommon::end_page();
2685: $r->print(<<END);
2686: <br />
2687: <input type="hidden" name="sortposts" value="$sortposts" />
2688: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2689: <input type="hidden" name="userpick" value="$symb" />
2690: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2691: </form>
2692: $end_page
2693: END
2694: }
2695:
2696: sub get_post_versions {
2697: my ($versions,$incoming,$htmldecode,$numver) = @_;
2698: if ($incoming =~ /^<version num="0">/) {
2699: my $p = HTML::LCParser->new(\$incoming);
2700: my $done = 0;
2701:
2702: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2703: my $num = $token->[1]{num};
2704: my $text = $p->get_text("/version");
2705: if (defined($numver)) {
2706: if ($num == $numver) {
2707: if ($htmldecode) {
2708: $text = &HTML::Entities::decode($text);
2709: }
2710: $$versions{$numver}=$text;
2711: $done = 1;
2712: }
2713: } else {
2714: if ($htmldecode) {
2715: $text = &HTML::Entities::decode($text);
2716: }
2717: $$versions{$num}=$text;
2718: }
2719: }
2720: } else {
2721: if (!defined($numver)) {
2722: $numver = 0;
2723: }
2724: if ($htmldecode) {
2725: $$versions{$numver} = $incoming;
2726: } else {
2727: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2728: }
2729: }
2730: return;
2731: }
2732:
2733: sub get_post_attachments {
2734: my ($attachments,$attachmenturls) = @_;
2735: my $num;
2736: if ($attachmenturls =~ m/^<attachment id="0">/) {
2737: my $p = HTML::LCParser->new(\$attachmenturls);
2738: while (my $token = $p->get_tag("attachment","filename","post")) {
2739: if ($token->[0] eq "attachment") {
2740: $num = $token->[1]{id};
2741: %{$$attachments{$num}} =();
2742: } elsif ($token->[0] eq "filename") {
2743: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2744: } elsif ($token->[0] eq "post") {
2745: my $id = $token->[1]{id};
2746: $$attachments{$num}{$id} = $p->get_text("/post");
2747: }
2748: }
2749: } else {
2750: %{$$attachments{'0'}} = ();
2751: $$attachments{'0'}{'filename'} = $attachmenturls;
2752: $$attachments{'0'}{'0'} = 'n';
2753: }
2754: return;
2755: }
2756:
2757: sub fail_redirect {
2758: my ($r,$feedurl,$delay) = @_;
2759: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2760: my %lt = &Apache::lonlocal::texthash(
2761: 'sorr' => 'Sorry, no recipients ...',
2762: );
2763: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2764: my %parms=('only_body' => 1);
2765: if ($delay !~ /^\d+(|\.\d+)$/) {
2766: $delay = 0;
2767: }
2768: if ($env{'form.modal'}) {
2769: my $onload = 'document.forms.reldt.submit()';
2770: if ($delay) {
2771: my $js_delay = int(1000 * $delay);
2772: $onload = "setTimeout(function(){
2773: document.forms.reldt.submit();
2774: },$js_delay);";
2775: }
2776: $parms{'add_entries'}={'onload' => $onload};
2777: } else {
2778: $parms{'redirect'}=[$delay,$feedurl];
2779: }
2780: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,\%parms));
2781: my $windowname = 'loncapaclient';
2782: if ($env{'request.lti.login'}) {
2783: $windowname .= 'lti';
2784: }
2785: $r->print(<<ENDFAILREDIR);
2786: <img align="right" src="$logo" />
2787: <p class="LC_warning">$lt{'sorr'}</p>
2788: <form name="reldt" action="$feedurl" target="$windowname">
2789: </form>
2790: ENDFAILREDIR
2791: $r->print(&Apache::loncommon::end_page());
2792: }
2793:
2794: sub redirect_back {
2795: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,
2796: $rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge) = @_;
2797: my $sorttag = '';
2798: my $roletag = '';
2799: my $statustag = '';
2800: my $sectag = '';
2801: my $grptag = '';
2802: my $userpicktag = '';
2803: my $qrystr = '';
2804: my $prevtag = '';
2805:
2806: &Apache::loncommon::content_type($r,'text/html');
2807: $r->send_http_header;
2808: &dewrapper(\$feedurl);
2809: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2810: if ($previous > 0) {
2811: $qrystr = 'previous='.$previous;
2812: if ($feedurl =~ /\?register=1/) {
2813: $feedurl .= '&'.$qrystr;
2814: } else {
2815: $feedurl .= '?'.$qrystr;
2816: }
2817: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2818: }
2819: if (defined($sort)) {
2820: my $sortqry = 'sortposts='.$sort;
2821: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2822: $feedurl .= '&'.$sortqry;
2823: } else {
2824: $feedurl .= '?'.$sortqry;
2825: }
2826: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2827: if (defined($numpicks)) {
2828: my $userpickqry = 'totposters='.$numpicks;
2829: $feedurl .= '&'.$userpickqry;
2830: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2831: } else {
2832: if (ref($sectionpick) eq 'ARRAY') {
2833: $feedurl .= '&sectionpick=';
2834: $sectag .= '<input type="hidden" name="sectionpick" value="';
2835: foreach my $sec (@{$sectionpick}) {
2836: $feedurl .= $sec.',';
2837: $sectag .= $sec.',';
2838: }
2839: $feedurl =~ s/,$//;
2840: $sectag =~ s/,$//;
2841: $sectag .= '" />';
2842: } else {
2843: $feedurl .= '&sectionpick='.$sectionpick;
2844: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2845: }
2846: if (ref($grouppick) eq 'ARRAY') {
2847: $feedurl .= '&grouppick=';
2848: $sectag .= '<input type="hidden" name="grouppick" value="';
2849: foreach my $grp (@{$grouppick}) {
2850: $feedurl .= $grp.',';
2851: $grptag .= $grp.',';
2852: }
2853: $feedurl =~ s/,$//;
2854: $grptag =~ s/,$//;
2855: $grptag .= '" />';
2856: } else {
2857: $feedurl .= '&grouppick='.$grouppick;
2858: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2859: }
2860: if (ref($rolefilter) eq 'ARRAY') {
2861: $feedurl .= '&rolefilter=';
2862: $roletag .= '<input type="hidden" name="rolefilter" value="';
2863: foreach my $role (@{$rolefilter}) {
2864: $feedurl .= $role.',';
2865: $roletag .= $role.',';
2866: }
2867: $feedurl =~ s/,$//;
2868: $roletag =~ s/,$//;
2869: $roletag .= '" />';
2870: } else {
2871: $feedurl .= '&rolefilter='.$rolefilter;
2872: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2873: }
2874: $feedurl .= '&statusfilter='.$statusfilter;
2875: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2876: }
2877: }
2878: my $grouptag;
2879: if ($group ne '') {
2880: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2881: my $refarg;
2882: if (exists($env{'form.ref'})) {
2883: $refarg = '&ref='.$env{'form.ref'};
2884: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2885: }
2886: if ($feedurl =~ /\?/) {
2887: $feedurl .= '&group='.$group.$refarg;
2888: } else {
2889: $feedurl .= '?group='.$group.$refarg;
2890: }
2891: }
2892: &Apache::lonenc::check_encrypt(\$feedurl);
2893: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2894: my %parms=('only_body' => 1);
2895: if ($env{'form.modal'}) {
2896: my $onload = 'document.forms.reldt.submit()';
2897: $parms{'add_entries'}={'onload' => $onload};
2898: } else {
2899: $parms{'redirect'}=[0,$feedurl];
2900: }
2901: my $start_page=
2902: &Apache::loncommon::start_page('Feedback sent',undef,\%parms);
2903: my $end_page = &Apache::loncommon::end_page();
2904: my $windowname = 'loncapaclient';
2905: if ($env{'request.lti.login'}) {
2906: $windowname .= 'lti';
2907: }
2908: $r->print(<<ENDREDIR);
2909: $start_page
2910: <img align="right" src="$logo" />
2911: $typestyle
2912: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2913: $blog
2914: $toolarge
2915: <font color="red">$status</font>
2916: <form name="reldt" action="$feedurl" target="$windowname">
2917: $prevtag
2918: $sorttag
2919: $statustag
2920: $roletag
2921: $sectag
2922: $grptag
2923: $userpicktag
2924: $grouptag
2925: </form>
2926: $end_page
2927: ENDREDIR
2928: }
2929:
2930: sub no_redirect_back {
2931: my ($r,$feedurl,$delay) = @_;
2932: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2933: my $form_for_modal;
2934: my %parms=('only_body' => 1,
2935: 'bgcolor' => '#FFFFFF',);
2936: if ($delay !~ /^\d+(|\.\d+)$/) {
2937: $delay = 0;
2938: }
2939: if ($env{'form.modal'}) {
2940: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2941: my $onload = 'document.forms.reldt.submit()';
2942: if ($delay) {
2943: my $js_delay = int(1000 * $delay);
2944: $onload = "setTimeout(function(){
2945: document.forms.reldt.submit();
2946: },$js_delay);";
2947: }
2948: $parms{'add_entries'}={'onload' => $onload};
2949: my $windowname = 'loncapaclient';
2950: if ($env{'request.lti.login'}) {
2951: $windowname .= 'lti';
2952: }
2953: $form_for_modal = <<ENDFORM;
2954: <form name="reldt" action="$feedurl" target="$windowname">
2955: </form>
2956: ENDFORM
2957: }
2958: } else {
2959: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2960: $parms{'redirect'}=[$delay,$feedurl];
2961: }
2962: }
2963:
2964: my $start_page=
2965: &Apache::loncommon::start_page('Feedback not sent',undef,
2966: \%parms);
2967:
2968: my $end_page = &Apache::loncommon::end_page();
2969:
2970: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2971: $r->print (<<ENDNOREDIRTWO);
2972: $start_page
2973: <img align="right" src="$logo" />
2974: <b>$nofeed</b>
2975: <br />
2976: $form_for_modal
2977: $end_page
2978: ENDNOREDIRTWO
2979: }
2980:
2981: sub screen_header {
2982: my ($feedurl,$symb,$group) = @_;
2983: my %default = &Apache::lonlocal::texthash (
2984: question => 'Question about resource content',
2985: comment => 'Question/Comment/Feedback about course content',
2986: policy => 'Question/Comment/Feedback about course policy',
2987: );
2988: my $contribdisc = &mt('Contribution to course discussion of resource');
2989: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2990: my $namevis = &mt('name only visible to course faculty');
2991: my $crstype;
2992: if ($env{'request.course.id'}) {
2993: $crstype = &Apache::loncommon::course_type();
2994: if ($crstype eq 'Community') {
2995: $default{'comment'} = &mt('Question/Comment/Feedback about community content');
2996: $default{'policy'} = &mt('Question/Comment/Feedback about community policy');
2997: $contribdisc = &mt('Contribution to community discussion of resource');
2998: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2999: $namevis = &mt('name only visible to community facilitators');
3000: }
3001: }
3002: my $msgoptions='';
3003: my $discussoptions='';
3004: my $checkradio = '';
3005: my $blockblog;
3006: my (%fdbkoptions,%discoptions);
3007: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
3008: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
3009: $fdbkoptions{'author'} = 1;
3010: }
3011: if (&feedback_available(1)) {
3012: $fdbkoptions{'question'} = 1;
3013: }
3014: if (&feedback_available(0,1)) {
3015: $fdbkoptions{'course'} = 1;
3016: }
3017: if (&feedback_available(0,0,1)) {
3018: $fdbkoptions{'policy'} = 1;
3019: }
3020: }
3021: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
3022: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
3023: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3024: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3025: my $realsymb = &get_realsymb($symb);
3026: if (!$blocked && &discussion_open(undef,$realsymb) &&
3027: (&Apache::lonnet::allowed('pch',
3028: $env{'request.course.id'}.
3029: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3030: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
3031: $discoptions{'nonanon'} = 1;
3032: if (&Apache::lonnet::allowed('pac',$env{'request.course.id'}.
3033: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
3034: $discoptions{'anon'} = 1;
3035: }
3036: $blockblog = &Apache::loncommon::blocking_status('blogs');
3037: }
3038: }
3039: my $total = scalar(keys(%fdbkoptions)) + scalar(keys(%discoptions));
3040: return if (!$total);
3041: if ($total == 1) {
3042: $checkradio = ' checked="checked"';
3043: }
3044: if (keys(%fdbkoptions)) {
3045: if ($fdbkoptions{'author'}) {
3046: $msgoptions =
3047: '<label><input type="radio" name="discuss" value="author"'.$checkradio.' /> '.
3048: &mt('Feedback to resource author').'</label><br />';
3049: }
3050: foreach my $item ('question','comment','policy') {
3051: my $type = $item;
3052: if ($item eq 'comment') {
3053: $type = 'course';
3054: }
3055: my $optionhash=$env{'course.'.$env{'request.course.id'}.'.'.$item.'.email.text'};
3056: if ($fdbkoptions{$type}) {
3057: $msgoptions .=
3058: '<label><input type="radio" name="discuss" value="'.$type.'"'.$checkradio.' />'.
3059: ($optionhash?$optionhash:$default{$item}).'</label><br />';
3060: }
3061: }
3062: }
3063: if (keys(%discoptions)) {
3064: if ($discoptions{'nonanon'}) {
3065: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
3066: $contribdisc.
3067: '</label>';
3068: }
3069: if ($discoptions{'anon'}) {
3070: $discussoptions .= '<br /><label><input type="radio" name="discuss" value="anon"'.$checkradio.' /> '.
3071: $anoncontrib.
3072: ' <i>('.$namevis.')</i></label> '.
3073: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
3074: }
3075: if (!$blockblog) {
3076: $discussoptions.= &add_blog_checkbox($crstype);
3077: }
3078: }
3079: if ($msgoptions) {
3080: $msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
3081: .'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
3082: '<td>'.$msgoptions.'</td></tr>';
3083: }
3084: if ($discussoptions) {
3085: $discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
3086: .'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
3087: '<td>'.$discussoptions.'</td></tr>';
3088: }
3089: return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
3090: }
3091:
3092: sub resource_output {
3093: my ($feedurl) = @_;
3094: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
3095: $usersaw=~s/\<body[^\>]*\>//gi;
3096: $usersaw=~s/\<\/body\>//gi;
3097: $usersaw=~s/\<html\>//gi;
3098: $usersaw=~s/\<\/html\>//gi;
3099: $usersaw=~s/\<head\>//gi;
3100: $usersaw=~s/\<\/head\>//gi;
3101: $usersaw=~s/action\s*\=/would_be_action\=/gi;
3102: return $usersaw;
3103: }
3104:
3105: sub clear_out_html {
3106: my ($message,$override)=@_;
3107: # Always allow the <m>-tag
3108: my %html=(M=>1);
3109: # Check if more is allowed
3110: my $cid=$env{'request.course.id'};
3111: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
3112: ($override)) {
3113: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
3114: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
3115: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
3116: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
3117: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
3118: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
3119: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
3120: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
3121: }
3122: # Do the substitution of everything that is not explicitly allowed
3123: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
3124: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
3125: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
3126: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
3127: return $message;
3128: }
3129:
3130: sub assemble_email {
3131: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
3132: my %lt = &Apache::lonlocal::texthash(
3133: 'prev' => 'Previous attempts of student (if applicable)',
3134: 'orig' => 'Original screen output (if applicable)',
3135: 'corr' => 'Correct Answer(s) (if applicable)',
3136: );
3137: if (&Apache::loncommon::course_type() eq 'Community') {
3138: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
3139: }
3140: my $email=<<"ENDEMAIL";
3141: $message
3142: ENDEMAIL
3143: my $citations=<<"ENDCITE";
3144: <h2>$lt{'prev'}</h2>
3145: $prevattempts
3146: <br /><hr />
3147: <h2>$lt{'orig'}</h2>
3148: $usersaw
3149: <h2>$lt{'corr'}</h2>
3150: $useranswer
3151: ENDCITE
3152: return ($email,$citations);
3153: }
3154:
3155:
3156: sub feedback_available {
3157: my ($question,$course,$policy)=@_;
3158: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
3159: $course,$policy);
3160: return scalar(%to);
3161: }
3162:
3163: sub send_msg {
3164: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,%to)=@_;
3165: my $status='';
3166: my $sendsomething=0;
3167: my $restitle = &get_resource_title($symb,$feedurl);
3168: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
3169: unless ($title=~/\w/) { $title=&mt('Feedback'); }
3170: foreach my $key (keys(%to)) {
3171: if ($key) {
3172: my ($user,$domain) = split(/\:/,$key,2);
3173: if (!defined($user)) {
3174: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
3175: } elsif (!defined($domain)) {
3176: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
3177: } else {
3178: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
3179: $title.' ['.$restitle.']',$email,$citations,$feedurl,
3180: $attachmenturl,undef,undef,$symb,$restitle)=~/ok/) {
3181: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
3182: } else {
3183: $sendsomething++;
3184: }
3185: }
3186: }
3187: }
3188:
3189: # Records of number of feedback messages are kept under the "symb" called "_feedback"
3190: # There are two entries within the framework of a course:
3191: # - the URLs for which feedback was provided
3192: # - the total number of contributions
3193: if ($sendsomething) {
3194: my %record=&getfeedbackrecords();
3195: my ($temp)=keys(%record);
3196: unless ($temp=~/^error\:/) {
3197: my %newrecord=();
3198: $newrecord{'resource'}=$feedurl;
3199: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3200: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
3201: $status.='<br />'.&mt('Not registered').'<br />';
3202: }
3203: }
3204: }
3205: return ($status,$sendsomething);
3206: }
3207:
3208: # Routine to get the complete feedback records
3209:
3210: sub getfeedbackrecords {
3211: my ($uname,$udom,$course)=@_;
3212: unless ($uname) { $uname=$env{'user.name'}; }
3213: unless ($udom) { $udom=$env{'user.domain'}; }
3214: unless ($course) { $course=$env{'request.course.id'}; }
3215: my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
3216: return %record;
3217: }
3218:
3219: # Routine to get feedback statistics
3220:
3221: sub getfeedbackstats {
3222: my %record=&getfeedbackrecords(@_);
3223: return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
3224: }
3225:
3226: # Store feedback credit
3227:
3228: sub storefeedbackpoints {
3229: my ($points,$uname,$udom,$course)=@_;
3230: unless ($points) { $points=0; }
3231: unless ($uname) { $uname=$env{'user.name'}; }
3232: unless ($udom) { $udom=$env{'user.domain'}; }
3233: unless ($course) { $course=$env{'request.course.id'}; }
3234: my %record=('grader_user' => $env{'user.name'},
3235: 'grader_domain' => $env{'user.domain'},
3236: 'points' => $points);
3237: return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
3238: }
3239:
3240: # Store feedback "likes"
3241:
3242: sub storefeedbacklikes {
3243: my ($likes,$uname,$udom,$course)=@_;
3244: unless ($likes) { $likes=0; }
3245: if ($likes>0) { $likes=1; }
3246: if ($likes<0) { $likes=-1; }
3247: unless ($uname) { $uname=$env{'user.name'}; }
3248: unless ($udom) { $udom=$env{'user.domain'}; }
3249: unless ($course) { $course=$env{'request.course.id'}; }
3250: my %record=&getfeedbackrecords($uname,$udom,$course);
3251: my $totallikes=$record{'totallikes'};
3252: $totallikes+=$likes;
3253: my %newrecord=('likes_user' => $env{'user.name'},
3254: 'likes_domain' => $env{'user.domain'},
3255: 'likes' => $likes,
3256: 'totallikes' => $totallikes);
3257: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3258: }
3259:
3260:
3261: sub adddiscuss {
3262: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3263: my $status='';
3264: my $realsymb = &get_realsymb($symb);
3265: my ($cnum,$cdom);
3266: if ($env{'request.course.id'}) {
3267: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3268: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3269: }
3270: if (&discussion_open(undef,$realsymb) &&
3271: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3272: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3273: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3274: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3275:
3276: my %contrib=('message' => $email,
3277: 'sendername' => $env{'user.name'},
3278: 'senderdomain' => $env{'user.domain'},
3279: 'screenname' => $env{'environment.screenname'},
3280: 'plainname' => $env{'environment.firstname'}.' '.
3281: $env{'environment.middlename'}.' '.
3282: $env{'environment.lastname'}.' '.
3283: $env{'enrironment.generation'},
3284: 'attachmenturl'=> $attachmenturl,
3285: 'subject' => $subject);
3286: if ($env{'form.replydisc'}) {
3287: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3288: }
3289: if ($anon) {
3290: $contrib{'anonymous'}='true';
3291: }
3292: if (($symb) && ($email)) {
3293: my $now = time;
3294: if ($env{'form.editdisc'}) {
3295: $contrib{'ip'}=&Apache::lonnet::get_requestor_ip();
3296: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3297: $contrib{'timestamp'} = $now;
3298: $contrib{'history'} = '';
3299: my $numoldver = 0;
3300: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3301: &Apache::lonenc::check_decrypt(\$oldsymb);
3302: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3303: # get timestamp for last post and history
3304: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3305: $env{'course.'.$env{'request.course.id'}.'.domain'},
3306: $env{'course.'.$env{'request.course.id'}.'.num'});
3307: if (defined($oldcontrib{$oldidx.':replyto'})) {
3308: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3309: }
3310: if (defined($oldcontrib{$oldidx.':history'})) {
3311: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3312: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3313: $numoldver = @oldversions;
3314: } else {
3315: $numoldver = 1;
3316: }
3317: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3318: }
3319: my $numnewver = $numoldver + 1;
3320: if (defined($oldcontrib{$oldidx.':subject'})) {
3321: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3322: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3323: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3324: } else {
3325: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3326: }
3327: }
3328: if (defined($oldcontrib{$oldidx.':message'})) {
3329: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3330: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3331: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3332: } else {
3333: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3334: }
3335: }
3336: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3337: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3338: $oldsymb,$oldidx,\%contrib,
3339: $env{'course.'.$env{'request.course.id'}.'.domain'},
3340: $env{'course.'.$env{'request.course.id'}.'.num'});
3341: $status='Editing class discussion'.($anon?' (anonymous)':'');
3342: } else {
3343: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3344: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3345: $env{'course.'.$env{'request.course.id'}.'.domain'},
3346: $env{'course.'.$env{'request.course.id'}.'.num'});
3347: }
3348: my %storenewentry=($symb => $now);
3349: $status.='<br />'.&mt('Updating discussion time').': '.
3350: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3351: $env{'course.'.$env{'request.course.id'}.'.domain'},
3352: $env{'course.'.$env{'request.course.id'}.'.num'});
3353: }
3354: my %record=&getdiscussionrecords();
3355: my ($temp)=keys(%record);
3356: unless ($temp=~/^error\:/) {
3357: my %newrecord=();
3358: $newrecord{'resource'}=$symb;
3359: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3360: $status.='<br />'.&mt('Registering').': '.
3361: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3362: &updatekarma();
3363: }
3364: } else {
3365: $status.='Failed.';
3366: }
3367: return $status.'<br />';
3368: }
3369:
3370:
3371: # Routine to get the complete discussion records
3372:
3373: sub getdiscussionrecords {
3374: my ($uname,$udom,$course)=@_;
3375: unless ($uname) { $uname=$env{'user.name'}; }
3376: unless ($udom) { $udom=$env{'user.domain'}; }
3377: unless ($course) { $course=$env{'request.course.id'}; }
3378: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3379: return %record;
3380: }
3381:
3382: # Routine to get discussion statistics
3383:
3384: sub getdiscussionstats {
3385: my %record=&getdiscussionrecords(@_);
3386: my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'};
3387: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes);
3388: }
3389:
3390: # Calculate discussion karma
3391:
3392: sub calcdiscussionkarma {
3393: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3394: my $karma=0;
3395: if ($votes>0) {
3396: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3397: if ($karma<0) { $karma=0; }
3398: if ($karma>5) { $karma=5; }
3399: }
3400: return $karma;
3401: }
3402:
3403: # Update karma
3404:
3405: sub updatekarma {
3406: my ($uname,$udom,$course)=@_;
3407: unless ($uname) { $uname=$env{'user.name'}; }
3408: unless ($udom) { $udom=$env{'user.domain'}; }
3409: unless ($course) { $course=$env{'request.course.id'}; }
3410: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3411: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3412: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3413: return $karma;
3414: }
3415:
3416: # Retrieve karma
3417:
3418: sub userkarma {
3419: my ($uname,$udom,$course)=@_;
3420: unless ($uname) { $uname=$env{'user.name'}; }
3421: unless ($udom) { $udom=$env{'user.domain'}; }
3422: unless ($course) { $course=$env{'request.course.id'}; }
3423: my $hashkey=$uname.':'.$udom.':'.$course;
3424: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3425: if ($cached) {
3426: return $karma;
3427: }
3428: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3429: $karma=$userdisc{'karma'};
3430: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3431: return $karma;
3432: }
3433:
3434: # Store discussion credit
3435:
3436: sub storediscussionpoints {
3437: my ($points,$uname,$udom,$course)=@_;
3438: unless ($points) { $points=0; }
3439: unless ($uname) { $uname=$env{'user.name'}; }
3440: unless ($udom) { $udom=$env{'user.domain'}; }
3441: unless ($course) { $course=$env{'request.course.id'}; }
3442: my %record=('grader_user' => $env{'user.name'},
3443: 'grader_domain' => $env{'user.domain'},
3444: 'points' => $points);
3445: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3446: }
3447:
3448: # Store discussion "likes"
3449:
3450: sub storediscussionlikes {
3451: my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_;
3452: unless ($uname) { $uname=$env{'user.name'}; }
3453: unless ($udom) { $udom=$env{'user.domain'}; }
3454: unless ($course) { $course=$env{'request.course.id'}; }
3455: my %record=&getdiscussionrecords($uname,$udom,$course);
3456: my $totallikes=$record{'totallikes'};
3457: my $totalunlikes=$record{'totalunlikes'};
3458: $totallikes += $chglikes;
3459: $totalunlikes += $chgunlikes;
3460: my %newrecord=('likes_user' => $env{'user.name'},
3461: 'likes_domain' => $env{'user.domain'},
3462: 'totallikes' => $totallikes,
3463: 'totalunlikes' => $totalunlikes,
3464: 'context' => $context);
3465: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3466: if ($status eq 'ok') {
3467: &updatekarma($uname,$udom,$course);
3468: }
3469: return $status;
3470: }
3471:
3472: sub get_discussion_info {
3473: my ($idx,%contrib) = @_;
3474: my $changelast = 0;
3475: my $count = 0;
3476: my $hiddenflag = 0;
3477: my $deletedflag = 0;
3478: my ($hidden,$deleted,%info,$newlastdisc);
3479: my $version = $contrib{'version'};
3480: if ($version) {
3481: for (my $id=$version; $id>0; $id--) {
3482: my $vkeys=$contrib{$id.':keys'};
3483: my @keys=split(/:/,$vkeys);
3484: if (grep(/^hidden$/,@keys)) {
3485: if (!$hiddenflag) {
3486: $hidden = $contrib{$id.':hidden'};
3487: $hiddenflag = 1;
3488: }
3489: } elsif (grep(/^deleted$/,@keys)) {
3490: if (!$deletedflag) {
3491: $deleted = $contrib{$id.':deleted'};
3492: $deletedflag = 1;
3493: }
3494: } else {
3495: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3496: $count++;
3497: $info{$count}{'id'} = $id;
3498: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3499: }
3500: }
3501: }
3502: if ($info{'1'}{'id'} == $idx) {
3503: $changelast = 1;
3504: if ($count > 1) {
3505: $newlastdisc = $info{'2'}{'timestamp'};
3506: } else {
3507: $newlastdisc = 0;
3508: }
3509: }
3510: }
3511: return ($changelast,$newlastdisc);
3512: }
3513:
3514: # ----------------------------------------------------------- Preview function
3515:
3516: sub show_preview {
3517: my ($r) = @_;
3518: &Apache::loncommon::content_type($r,'text/html');
3519: $r->send_http_header;
3520: my $start_page=
3521: &Apache::loncommon::start_page('Preview',undef,
3522: {'only_body' => 1,});
3523:
3524: my $message=&clear_out_html($env{'form.comment'});
3525: &newline_to_br(\$message);
3526: $message=&Apache::lonspeller::markeduptext($message);
3527: $message=&Apache::lontexconvert::msgtexconverted($message);
3528: my $subject=&clear_out_html($env{'form.subject'});
3529: $subject=~s/\n/\<br \/\>/g;
3530: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3531:
3532: my $end_page = &Apache::loncommon::end_page();
3533:
3534: $r->print($start_page
3535: .'<h1>'.&mt('Preview').'</h1>'
3536: .&Apache::lonhtmlcommon::start_pick_box()
3537: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3538: .$subject
3539: .&Apache::lonhtmlcommon::row_closure()
3540: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3541: .$message
3542: .&Apache::lonhtmlcommon::row_closure(1)
3543: .&Apache::lonhtmlcommon::end_pick_box()
3544: .$end_page
3545: );
3546: }
3547:
3548: sub contains_block_html {
3549: my ($message)=@_;
3550: return ($message =~ m{
3551: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3552: \s*
3553: (\w+\=['"]\w+['"])*
3554: \s*
3555: (
3556: \s*/>|
3557: >.*</\1\s*>
3558: )}xs
3559: );
3560: }
3561:
3562: sub tidy_html {
3563: my ($message)=@_;
3564: # my $tidy = HTML::Tidy::libXML->new();
3565: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3566: # $xhtml =~ m/<body>(.*)<\/body>/is;
3567: # my $clean = $1;
3568: # # remove any empty block-level tags
3569: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3570: # $message=$clean;
3571: return $message;
3572: }
3573:
3574: sub newline_to_br {
3575: my ($message)=@_;
3576: my $newmessage;
3577: my $parser=HTML::LCParser->new($message);
3578: while (my $token=$parser->get_token()) {
3579: if ($token->[0] eq 'T') {
3580: my $text=$token->[1];
3581: $text=~s/\n/\<br \/\>/g;
3582: $newmessage.=$text;
3583: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3584: $newmessage.=$token->[1];
3585: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3586: $newmessage.=$token->[2];
3587: } elsif ($token->[0] eq 'S') {
3588: $newmessage.=$token->[4];
3589: }
3590:
3591: }
3592: $$message=$newmessage;
3593: }
3594:
3595: sub generate_preview_button {
3596: my ($formname,$fieldname)=@_;
3597: unless ($formname) { $formname='mailform'; }
3598: unless ($fieldname) { $fieldname='comment'; }
3599: my $pre=&mt("Show Preview and Check Spelling");
3600: return(<<ENDPREVIEW);
3601: <br />
3602: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3603: <input type="hidden" name="subject" />
3604: <input type="hidden" name="comment" />
3605: <input type="button" value="$pre"
3606: onclick="if (typeof(document.$formname.onsubmit)=='function') {document.$formname.onsubmit();};this.form.comment.value=document.$formname.$fieldname.value;this.form.subject.value=document.$formname.subject.value;this.form.submit();" />
3607: </form>
3608: ENDPREVIEW
3609: }
3610:
3611: sub modify_attachments {
3612: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3613: $attachmaxtext,$toolarge)=@_;
3614:
3615: my %lt = &Apache::lonlocal::texthash(
3616: 'subj' => 'Subject',
3617: 'chth' => 'Check the checkboxes for any you wish to remove.',
3618: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3619: 'adda' => 'Add a new attachment to this post',
3620: 'stch' => 'Save Changes',
3621: 'clic' => 'Add/remove attachments',
3622: );
3623: my $js = <<END;
3624: <script type="text/javascript">
3625: function setAction () {
3626: document.modattachments.action = document.modattachments.origpage.value;
3627: document.modattachments.submit();
3628: }
3629: </script>
3630: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
3631: END
3632:
3633: # Breadcrumbs
3634: my $brcrum = [{'href' => '',
3635: 'text' => 'Discussion Post Attachments'}];
3636: my %parms=('only_body' => 1);
3637: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
3638:
3639: my $start_page =
3640: &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
3641:
3642: my $orig_subject = &unescape($env{'form.subject'});
3643: my $subject=&clear_out_html($orig_subject);
3644: $subject=~s/\n/\<br \/\>/g;
3645: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3646: my $timestamp=$env{'form.timestamp'};
3647: my $numoldver=$env{'form.numoldver'};
3648:
3649: my $msg = '';
3650: my %attachments = ();
3651: my %currattach = ();
3652: if ($idx) {
3653: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3654: }
3655: &Apache::lonenc::check_encrypt(\$symb);
3656:
3657: my $end_page =
3658: &Apache::loncommon::end_page();
3659:
3660: $r->print(<<END);
3661: $start_page
3662: $toolarge
3663: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3664:
3665: <h1>$lt{'clic'}</h1>
3666: END
3667: $r->print(&Apache::lonhtmlcommon::start_pick_box());
3668: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
3669: $r->print('<b>'.$subject.'</b>');
3670: $r->print(&Apache::lonhtmlcommon::row_closure());
3671: $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
3672: $r->print('<input type="file" name="addnewattach" class="LC_flUpload" />'
3673: .'<input type="hidden" id="LC_free_space" value="131072" />'
3674: .'<input type="button" name="upload" value="Upload" '
3675: .'onclick="this.form.submit()" /> '.$attachmaxtext);
3676: if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
3677: $r->print(&Apache::lonhtmlcommon::row_closure());
3678: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
3679: if ($idx) {
3680: if ($attachmenturls) {
3681: my @currold = keys(%currattach);
3682: if (@currold > 0) {
3683: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3684: foreach my $id (@currold) {
3685: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3686: $attachurl =~ m#/([^/]+)$#;
3687: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3688: }
3689: $r->print("<br />");
3690: }
3691: }
3692: }
3693: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3694: $r->print($lt{'chth'}.'<br />'."\n");
3695: foreach my $attach (@{$currnewattach}) {
3696: $attach =~ m#/([^/]+)$#;
3697: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3698: }
3699: }
3700: }
3701: $r->print(&Apache::lonhtmlcommon::row_closure(1));
3702: $r->print(&Apache::lonhtmlcommon::end_pick_box());
3703: $r->print(<<END);
3704: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3705: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3706: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3707: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3708: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3709: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3710: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3711: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3712: END
3713: foreach my $item (@{$currnewattach}) {
3714: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3715: }
3716: foreach my $item (@{$currdelold}) {
3717: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3718: }
3719: $r->print(<<END);
3720: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3721: </form>
3722: $end_page
3723: END
3724: return;
3725: }
3726:
3727: sub process_attachments {
3728: my ($currnewattach,$currdelold,$keepold) = @_;
3729:
3730: @{$currnewattach}=
3731: &Apache::loncommon::get_env_multiple('form.currnewattach');
3732: @{$currdelold}=
3733: &Apache::loncommon::get_env_multiple('form.deloldattach');
3734: if (exists($env{'form.delnewattach'})) {
3735: my @currdelnew =
3736: &Apache::loncommon::get_env_multiple('form.delnewattach');
3737: my @currnew = ();
3738: foreach my $newone (@{$currnewattach}) {
3739: my $delflag = 0;
3740: foreach my $item (@currdelnew) {
3741: if ($newone eq $item) {
3742: $delflag = 1;
3743: last;
3744: }
3745: }
3746: unless ($delflag) {
3747: push(@currnew, $newone);
3748: }
3749: }
3750: @{$currnewattach} = @currnew;
3751: }
3752: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3753: }
3754:
3755: sub generate_attachments_button {
3756: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3757: $numoldver,$mode,$blockblog) = @_;
3758: my $origpage = $ENV{'REQUEST_URI'};
3759: my $att=$attachnum.' '.&mt("attachments");
3760: my %lt = &Apache::lonlocal::texthash(
3761: 'clic' => 'Add/remove attachments',
3762: );
3763: my $response = (<<END);
3764: <br />
3765: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3766: <input type="button" value="$lt{'clic'}"
3767: onclick="if (typeof(document.mailform.onsubmit)=='function') {document.mailform.onsubmit();};this.form.comment.value=escape(document.mailform.comment.value);this.form.subject.value=escape(document.mailform.subject.value);
3768: END
3769: if (!$blockblog) {
3770: $response .= 'setblogvalue();';
3771: }
3772: unless ($mode eq 'board') {
3773: $response .= 'javascript:anonchk();';
3774: }
3775: $response .= (<<ENDATTACH);
3776: this.form.submit();" />
3777: <input type="hidden" name="origpage" value="$origpage" />
3778: <input type="hidden" name="idx" value="$idx" />
3779: <input type="hidden" name="timestamp" value="$now" />
3780: <input type="hidden" name="subject" />
3781: <input type="hidden" name="comment" />
3782: <input type="hidden" name="blog" value="0" />
3783: <input type="hidden" name="discuss" value="0" />
3784: <input type="hidden" name="numoldver" value="$numoldver" />
3785: ENDATTACH
3786: if (defined($deloldattach)) {
3787: if (@{$deloldattach} > 0) {
3788: foreach my $delatt (@{$deloldattach}) {
3789: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3790: }
3791: }
3792: }
3793: if (defined($currnewattach)) {
3794: if (@{$currnewattach} > 0) {
3795: foreach my $attach (@{$currnewattach}) {
3796: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3797: }
3798: }
3799: }
3800: $response .= '</form>';
3801: return $response;
3802: }
3803:
3804: sub extract_attachments {
3805: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3806: %{$attachments}=();
3807: &get_post_attachments($attachments,$attachmenturls);
3808: foreach my $id (sort(keys(%{$attachments}))) {
3809: if (exists($$attachments{$id}{$numoldver})) {
3810: if (defined($currdelold)) {
3811: if (@{$currdelold} > 0) {
3812: unless (grep/^$id$/,@{$currdelold}) {
3813: $$currattach{$id} = $$attachments{$id}{$numoldver};
3814: }
3815: } else {
3816: $$currattach{$id} = $$attachments{$id}{$numoldver};
3817: }
3818: } else {
3819: $$currattach{$id} = $$attachments{$id}{$numoldver};
3820: }
3821: }
3822: }
3823: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3824: if (@attached == 1) {
3825: my $id = $attached[0];
3826: my $attachurl;
3827: if ($attachmenturls =~ m/^<attachment id="0">/) {
3828: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3829: } else {
3830: $attachurl = $$attachments{$id}{'filename'};
3831: }
3832: $attachurl=~m|/([^/]+)$|;
3833: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3834: $1.'</tt></a><br />';
3835: &Apache::lonnet::allowuploaded('/adm/feedback',
3836: $attachurl);
3837: } elsif (@attached > 1) {
3838: $$message.='<ol>';
3839: foreach my $attach (@attached) {
3840: my $id = $attach;
3841: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3842: my ($fname)
3843: =($attachurl=~m|/([^/]+)$|);
3844: $$message .= '<li><a href="'.$attachurl.
3845: '"><tt>'.
3846: $fname.'</tt></a></li>';
3847: &Apache::lonnet::allowuploaded('/adm/feedback',
3848: $attachurl);
3849: }
3850: $$message .= '</ol>';
3851: }
3852: }
3853:
3854: sub construct_attachmenturl {
3855: my ($currnewattach,$keepold,$symb,$idx)=@_;
3856: my $oldattachmenturl;
3857: my $newattachmenturl;
3858: my $startnum = 0;
3859: my $currver = 0;
3860: if (($env{'form.editdisc'}) && ($idx)) {
3861: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3862: $env{'course.'.$env{'request.course.id'}.'.domain'},
3863: $env{'course.'.$env{'request.course.id'}.'.num'});
3864: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3865: if ($contrib{$idx.':history'}) {
3866: if ($contrib{$idx.':history'} =~ /:/) {
3867: my @oldversions = split(/:/,$contrib{$idx.':history'});
3868: $currver = 1 + scalar(@oldversions);
3869: } else {
3870: $currver = 2;
3871: }
3872: } else {
3873: $currver = 1;
3874: }
3875: if ($oldattachmenturl) {
3876: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3877: my %attachments = ();
3878: my $prevver = $currver-1;
3879: &get_post_attachments(\%attachments,$oldattachmenturl);
3880: my $numattach = scalar(keys(%attachments));
3881: $startnum += $numattach;
3882: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3883: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3884: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3885: unless ($item eq 'filename') {
3886: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3887: }
3888: }
3889: if (grep/^$num$/,@{$keepold}) {
3890: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3891: }
3892: $newattachmenturl .= '</attachment>';
3893: }
3894: } else {
3895: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3896: unless (grep/^0$/,@{$keepold}) {
3897: $newattachmenturl .= '<post id="1">n</post>';
3898: }
3899: $newattachmenturl .= '</attachment>';
3900: $startnum ++;
3901: }
3902: }
3903: }
3904: for (my $i=0; $i<@{$currnewattach}; $i++) {
3905: my $attachnum = $startnum + $i;
3906: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3907: }
3908: return $newattachmenturl;
3909: }
3910:
3911: sub add_blog_checkbox {
3912: my ($crstype) = @_;
3913: my $checkstatus;
3914: if ($env{'form.blog'}) {
3915: $checkstatus = 'checked="checked"';
3916: }
3917: my $output = '
3918: <script type="text/javascript">
3919: function setblogvalue() {
3920: if (document.mailform.blog.checked) {
3921: document.attachment.blog.value = 1;
3922: } else {
3923: document.attachment.blog.value = 0;
3924: }
3925: }
3926: </script><br />
3927: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3928: if ($crstype eq 'Community') {
3929: $output .= &mt('Add to my public community blog');
3930: } else {
3931: $output .= &mt('Add to my public course blog');
3932: }
3933: $output .= '</label><br />'."\n";
3934: return $output;
3935: }
3936:
3937: sub has_discussion {
3938: my $resourcesref = shift;
3939: my $navmap = Apache::lonnavmaps::navmap->new();
3940: if (defined($navmap)) {
3941: my @allres=$navmap->retrieveResources();
3942: foreach my $resource (@allres) {
3943: if ($resource->hasDiscussion()) {
3944: my $ressymb = $resource->wrap_symb();
3945: if (ref($resourcesref) eq 'ARRAY') {
3946: push(@{$resourcesref}, $ressymb);
3947: }
3948: }
3949: }
3950: } else {
3951: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3952: }
3953: return;
3954: }
3955:
3956: sub sort_filter_names {
3957: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3958: if (ref($sort_types) eq 'HASH') {
3959: %{$sort_types} = (
3960: ascdate => 'Date order - oldest first',
3961: descdate => 'Date order - newest first',
3962: thread => 'Threaded',
3963: subject => 'By subject',
3964: username => 'By domain and username',
3965: lastfirst => 'By last name, first name'
3966: );
3967: }
3968: my @courseroles = qw(st in ta ep ad);
3969: if ($crstype eq 'Community') {
3970: push(@courseroles,'co');
3971: } else {
3972: push(@courseroles,'cc');
3973: }
3974: if (ref($role_types) eq 'HASH') {
3975: foreach my $role (@courseroles) {
3976: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3977: }
3978: $role_types->{'all'} = 'All roles';
3979: $role_types->{'cr'} = 'Custom role';
3980: }
3981: if (ref($status_types) eq 'HASH') {
3982: %{$status_types} = (
3983: all => 'Roles of any status',
3984: Active => 'Only active roles',
3985: Expired => 'Only past roles',
3986: Future => 'Only future roles',
3987: );
3988: }
3989: }
3990:
3991: sub handler {
3992: my $r = shift;
3993: if ($r->header_only) {
3994: &Apache::loncommon::content_type($r,'text/html');
3995: $r->send_http_header;
3996: return OK;
3997: }
3998:
3999: # --------------------------- Get query string for limited number of parameters
4000:
4001: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
4002: ['like','unlike','modal','hide','unhide','deldisc','undeleteall','postdata','preview','replydisc','editdisc','cmd','symb','onlyunread','allposts','onlyunmark','previous','markread','markonread','markondisp','toggoff','toggon','modifydisp','changes','navtime','navmaps','navurl','sortposts','applysort','rolefilter','statusfilter','sectionpick','groupick','posterlist','userpick','attach','origpage','currnewattach','deloldattach','keepold','allversions','export','sendmessageonly','group','ref']);
4003: my $group = $env{'form.group'};
4004: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4005: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4006:
4007: my %attachmax = (
4008: text => &mt('(128 KB max size)'),
4009: num => 131072,
4010: );
4011: if ($env{'form.editdisc'}) {
4012: if (!(&editing_allowed($env{'form.editdisc'},$group))) {
4013: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4014: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
4015: my $feedurl=&Apache::lonnet::clutter($url);
4016: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />',
4017: '0','0','','',$env{'form.previous'},undef,undef,undef,
4018: undef,undef,undef,$group);
4019: return OK;
4020: }
4021: }
4022: if ($env{'form.discsymb'}) {
4023: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
4024: my $readkey = $symb.'_read';
4025: my $chgcount = 0;
4026: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
4027: foreach my $key (keys(%env)) {
4028: if ($key =~ m/^form\.postunread_(\d+)/) {
4029: if ($readinghash{$readkey} =~ /\.$1\./) {
4030: $readinghash{$readkey} =~ s/\.$1\.//;
4031: $chgcount ++;
4032: }
4033: } elsif ($key =~ m/^form\.postread_(\d+)/) {
4034: unless ($readinghash{$readkey} =~ /\.$1\./) {
4035: $readinghash{$readkey} .= '.'.$1.'.';
4036: $chgcount ++;
4037: }
4038: }
4039: }
4040: if ($chgcount > 0) {
4041: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4042: \%readinghash,$env{'user.domain'},$env{'user.name'});
4043: }
4044: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
4045: '0','0','','',$env{'form.previous'},'','','',
4046: undef,undef,undef,$group);
4047: return OK;
4048: }
4049: if ($env{'form.allversions'}) {
4050: &Apache::loncommon::content_type($r,'text/html');
4051: &Apache::loncommon::no_cache($r);
4052: $r->send_http_header;
4053:
4054: # Breadcrumbs
4055: my $brcrum = [{'href' => '',
4056: 'text' => 'Discussion Post Versions'}];
4057:
4058: my %parms=();
4059: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
4060:
4061: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
4062:
4063: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
4064: ($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb);
4065: my $ressymb = &wrap_symb($symb);
4066: my $seeid;
4067: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
4068: $seeid = 1;
4069: }
4070: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4071: if ($idx > 0) {
4072: my %messages = ();
4073: my %subjects = ();
4074: my %attachmsgs = ();
4075: my %allattachments = ();
4076: my %imsfiles = ();
4077: my ($screenname,$plainname,$showaboutme);
4078: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4079: $cdom,$cnum);
4080: $r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
4081: }
4082: $r->print(&Apache::loncommon::end_page());
4083: return OK;
4084: }
4085: if ($env{'form.posterlist'}) {
4086: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4087: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
4088: $env{'form.sortposts'});
4089: return OK;
4090: }
4091: if ($env{'form.userpick'}) {
4092: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
4093: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
4094: my $numpicks = @posters;
4095: my %discinfo;
4096: $discinfo{$symb.'_userpick'} = join('&',@posters);
4097: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4098: \%discinfo,$env{'user.domain'},$env{'user.name'});
4099: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4100: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
4101: '',$numpicks,$group);
4102: return OK;
4103: }
4104: if ($env{'form.applysort'}) {
4105: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4106: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4107: '',$env{'form.previous'},$env{'form.sortposts'},
4108: $env{'form.rolefilter'},$env{'form.statusfilter'},
4109: $env{'form.sectionpick'},$env{'form.grouppick'},
4110: undef,$group);
4111: return OK;
4112: } elsif ($env{'form.cmd'} eq 'sortfilter') {
4113: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4114: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
4115: return OK;
4116: } elsif ($env{'form.navtime'}) {
4117: my %discinfo = ();
4118: my @resources = ();
4119: if (defined($env{'form.navmaps'})) {
4120: if ($env{'form.navmaps'} =~ /:/) {
4121: @resources = split(/:/,$env{'form.navmaps'});
4122: } else {
4123: @resources = ("$env{'form.navmaps'}");
4124: }
4125: } else {
4126: &has_discussion(\@resources);
4127: }
4128: my $numitems = @resources;
4129: my $feedurl = '/adm/navmaps';
4130: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
4131: my %lt = &Apache::lonlocal::texthash(
4132: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
4133: );
4134: foreach my $res (@resources) {
4135: my $ressymb=$res;
4136: &Apache::lonenc::check_decrypt(\$ressymb);
4137: my $lastkey = $ressymb.'_lastread';
4138: $discinfo{$lastkey} = $env{'form.navtime'};
4139: }
4140: my $textline = '<b>'.
4141: &mt('Marked "New" posts as read in a total of [_1] resources/discussion boards.',
4142: $numitems).
4143: '</b>';
4144: if ($numitems > 0) {
4145: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4146: \%discinfo,$env{'user.domain'},$env{'user.name'});
4147: } else {
4148: $textline = "<b>$lt{'twnp'}</b>";
4149: }
4150: &Apache::loncommon::content_type($r,'text/html');
4151: $r->send_http_header;
4152: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
4153: my %onload;
4154:
4155: my $start_page=
4156: &Apache::loncommon::start_page('New posts marked as read',undef,
4157: {'redirect' => [2,$feedurl],
4158: 'only_body' => 1,
4159: 'add_entries' => \%onload});
4160: my $end_page = &Apache::loncommon::end_page();
4161: my $windowname = 'loncapaclient';
4162: if ($env{'request.lti.login'}) {
4163: $windowname .= 'lti';
4164: }
4165: $r->print (<<ENDREDIR);
4166: $start_page
4167: <img align="right" src="$logo" />
4168: $textline
4169: <form name="reldt" action="$feedurl" target="$windowname">
4170: </form>
4171: <br />
4172: $end_page
4173: ENDREDIR
4174: return OK;
4175: } elsif ($env{'form.modifydisp'}) {
4176: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
4177: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
4178: split(/_/,$env{'form.changes'});
4179: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
4180: $dispchgB,$markchg,$toggchg,$feedurl);
4181: return OK;
4182: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
4183: $env{'form.allposts'} || $env{'form.onlyunread'} ||
4184: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
4185: $env{'form.toggon'} || $env{'form.markread'}) {
4186: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4187: my %discinfo;
4188: # ------------------------ Modify setting for read/unread toggle for each post
4189: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
4190: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
4191: # --------- Modify setting for identification of 'NEW' posts in this discussion
4192: if ($env{'form.markondisp'}) {
4193: $discinfo{$symb.'_lastread'} = time;
4194: $discinfo{$symb.'_markondisp'} = 1;
4195: }
4196: if ($env{'form.markonread'}) {
4197: if ( $env{'form.previous'} > 0 ) {
4198: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
4199: }
4200: $discinfo{$symb.'_markondisp'} = 0;
4201: }
4202: # --------------------------------- Modify display setting for this discussion
4203: if ($env{'form.allposts'}) {
4204: $discinfo{$symb.'_showonlyunread'} = 0;
4205: $discinfo{$symb.'_showonlyunmark'} = 0;
4206: }
4207: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
4208: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
4209: # ----------------------------------------------------- Mark new posts not NEW
4210: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
4211: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4212: \%discinfo,$env{'user.domain'},$env{'user.name'});
4213: my $previous=$env{'form.previous'};
4214: if ($env{'form.markondisp'}) { $previous=undef; }
4215: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4216: '0','0','','',$previous,'','','','','','',$group);
4217: return OK;
4218: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4219: # ----------------------------------------------------------------- Hide/unhide
4220: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4221: my ($symb,$idx)=split(/\:\:\:/,$entry);
4222: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4223: my $ressymb = &wrap_symb($symb);
4224:
4225: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4226: unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) {
4227: &redirect_back($r,$feedurl,&mt('Hiding not permitted').'<br />',
4228: '0','0','','',$env{'form.previous'},'','','','',
4229: undef,undef,$group);
4230: return OK;
4231: }
4232:
4233: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4234: $cdom,$cnum);
4235:
4236: my $currenthidden=$contrib{'hidden'};
4237: my $currentstudenthidden=$contrib{'studenthidden'};
4238:
4239: if ($env{'form.hide'}) {
4240: $currenthidden.='.'.$idx.'.';
4241: unless ($seehidden) {
4242: $currentstudenthidden.='.'.$idx.'.';
4243: }
4244: } else {
4245: $currenthidden=~s/\.$idx\.//g;
4246: }
4247: my %newhash=('hidden' => $currenthidden);
4248: if ( ($env{'form.hide'}) && (!$seehidden) ) {
4249: $newhash{'studenthidden'} = $currentstudenthidden;
4250: }
4251: if ($env{'form.hide'}) {
4252: my $changelast = 0;
4253: my $newlast;
4254: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4255: if ($changelast) {
4256: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4257: $cdom,$cnum);
4258: }
4259: }
4260: my $result;
4261: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4262: $cdom,$cnum) eq 'ok') {
4263: my $prefix=$symb.':'.$idx.':';
4264: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4265: '^'.$prefix);
4266: my ($totallikes,$totalunlikes);
4267: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4268: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4269: }
4270: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4271: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4272: }
4273: if ($totallikes || $totalunlikes) {
4274: my ($chglikes,$chgunlikes,$context);
4275: if ($env{'form.hide'}) {
4276: $chglikes = -1 * $totallikes;
4277: $chgunlikes = -1 * $totalunlikes;
4278: $context = 'hide';
4279: } else {
4280: $chglikes = $totallikes;
4281: $chgunlikes = $totalunlikes;
4282: $context = 'unhide';
4283: }
4284: &storediscussionlikes($chglikes,$chgunlikes,
4285: $contrib{$idx.':sendername'},
4286: $contrib{$idx.':senderdomain'},
4287: $env{'request.course.id'},
4288: $context);
4289:
4290: }
4291: $result = &mt('Changed discussion status');
4292: } else {
4293: $result = &mt('Discussion status unchanged');
4294: }
4295: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4296: $env{'form.previous'},undef,undef,undef,
4297: undef,undef,undef,$group);
4298: return OK;
4299: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4300: # ----------------------------------------------------------------- Like/unlike
4301: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4302: my ($symb,$idx)=split(/\:\:\:/,$entry);
4303: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4304: my $result;
4305: if ($idx > 0) {
4306: my $realsymb = &get_realsymb($symb);
4307: my $status='OPEN';
4308: if ($Apache::lonhomework::parsing_a_problem ||
4309: $Apache::lonhomework::parsing_a_task) {
4310: $status=$Apache::inputtags::status[-1];
4311: }
4312: if (&discussion_vote_available($status,$realsymb)) {
4313: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4314: $cdom,$cnum);
4315: my $ownpost;
4316: if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
4317: ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
4318: $ownpost = 1;
4319: }
4320: if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) {
4321: $result = &mt('Vote not registered.').' ';
4322: }
4323: if ($ownpost) {
4324: $result .= &mt('No voting for your own posts.');
4325: } elsif ($contrib{$idx.':hidden'}) {
4326: $result .= &mt('No voting for hidden posts.');
4327: } elsif ($contrib{$idx.':deleted'}) {
4328: $result .= &mt('No voting for deleted posts.');
4329: } else {
4330: #
4331: # Likes and unlikes are in db-file "disclikes" of the course
4332: # The prefix is the $symb to identify the resource discussion,
4333: # and the $idx to identify the entry
4334: #
4335: my $prefix=$symb.':'.$idx.':';
4336: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4337: '^'.$prefix);
4338:
4339: # Get current like or unlike status for the $idx for this user.
4340: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4341: my ($userlikes,$userunlikes);
4342: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4343: if (exists($likes{$prefix.'likers'}{$thisuser})) {
4344: $userlikes = 1;
4345: }
4346: }
4347: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4348: if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
4349: $userunlikes = 1;
4350: }
4351: }
4352: # Get the current "likes" count
4353: my $likescount=$likes{$prefix.'likes'};
4354: # Find out if they already voted
4355: # Users cannot like a post twice, or unlike it twice.
4356: # They can change their mind, though.
4357: my $alreadyflag=0;
4358: my $votetype;
4359: if ($env{'form.like'}) {
4360: if ($userlikes) {
4361: $alreadyflag=1;
4362: } elsif ($userunlikes) {
4363: delete($likes{$prefix.'unlikers'}{$thisuser});
4364: $votetype = 'switch';
4365: $likescount++;
4366: } else {
4367: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4368: $likes{$prefix.'likers'}{$thisuser} = 1;
4369: } else {
4370: $likes{$prefix.'likers'} = {$thisuser => 1};
4371: }
4372: $likescount++;
4373: }
4374: } else {
4375: if ($userunlikes) {
4376: $alreadyflag=1;
4377: } elsif ($userlikes) {
4378: delete($likes{$prefix.'likers'}{$thisuser});
4379: $votetype = 'switch';
4380: $likescount--;
4381: } else {
4382: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4383: $likes{$prefix.'unlikers'}{$thisuser} = 1;
4384: } else {
4385: $likes{$prefix.'unlikers'} = {$thisuser => 1};
4386: }
4387: $likescount--;
4388: }
4389: }
4390: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4391: if ($alreadyflag) {
4392: if ($env{'form.like'}) {
4393: $result= &mt("'Like' already registered");
4394: } else {
4395: $result= &mt("'Unlike' already registered");
4396: }
4397: } else {
4398: my %newhash=($prefix.'likes' => $likescount,
4399: $prefix.'likers' => $likes{$prefix.'likers'},
4400: $prefix.'unlikers' => $likes{$prefix.'unlikers'});
4401: # Store data in db-file "disclikes"
4402: if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') {
4403: # Also store with the person who posted the liked/unliked entry
4404: my ($chglike,$chgunlike);
4405: if ($env{'form.like'}) {
4406: if ($votetype eq 'switch') {
4407: $chglike = 0;
4408: $chgunlike = -1;
4409: } else {
4410: $chglike = 1;
4411: $chgunlike = 0;
4412: }
4413: &storediscussionlikes($chglike,$chgunlike,
4414: $contrib{$idx.':sendername'},
4415: $contrib{$idx.':senderdomain'},
4416: $env{'request.course.id'},'like');
4417: $result=&mt("Registered 'Like'");
4418: } else {
4419: if ($votetype eq 'switch') {
4420: $chglike = -1;
4421: $chgunlike = 0;
4422: } else {
4423: $chglike = 0;
4424: $chgunlike = 1;
4425: }
4426: &storediscussionlikes($chglike,$chgunlike,
4427: $contrib{$idx.':sendername'},
4428: $contrib{$idx.':senderdomain'},
4429: $env{'request.course.id'},'unlike');
4430: $result=&mt("Registered 'Unlike'");
4431: }
4432: } else {
4433: # Oops, something went wrong
4434: $result=&mt("Failed to register vote");
4435: }
4436: }
4437: }
4438: } else {
4439: $result=&mt('Voting unavailable for this discussion');
4440: }
4441: } else {
4442: $result=&mt('Invalid post number');
4443: }
4444: &redirect_back($r,$feedurl,$result.'<br />',
4445: '0','0','','',$env{'form.previous'},undef,undef,undef,
4446: undef,undef,undef,$group);
4447: return OK;
4448: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4449: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4450: if ($env{'form.cmd'} eq 'threadedoff') {
4451: &Apache::lonnet::put('environment',{'unthreadeddiscussion' => 'on'});
4452: &Apache::lonnet::appenv({'environment.unthreadeddiscussion' => 'on'});
4453: &Apache::lonnet::del('environment',['threadeddiscussion']);
4454: &Apache::lonnet::delenv('environment.threadeddiscussion');
4455: } else {
4456: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4457: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4458: &Apache::lonnet::del('environment',['unthreadeddiscussion']);
4459: &Apache::lonnet::delenv('environment.unthreadeddiscussion');
4460: }
4461: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4462: '0','0','','',$env{'form.previous'},undef,undef,undef,
4463: undef,undef,undef,$group);
4464: return OK;
4465: } elsif ($env{'form.deldisc'}) {
4466: # --------------------------------------------------------------- Hide for good
4467: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4468: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4469: my $ressymb=&wrap_symb($symb);
4470:
4471: unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4472: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',
4473: '0','0','','',$env{'form.previous'},'','','','',
4474: undef,undef,$group);
4475: return OK;
4476: }
4477: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4478: $cdom,$cnum);
4479: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4480: if ($changelast) {
4481: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4482: $cdom,$cnum);
4483: }
4484: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4485:
4486: my $result;
4487: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4488: $cdom,$cnum) eq 'ok') {
4489: $result = &mt('Changed discussion status');
4490: my $prefix=$symb.':'.$idx.':';
4491: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4492: '^'.$prefix);
4493: my ($totallikes,$totalunlikes);
4494: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4495: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4496: }
4497: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4498: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4499: }
4500: if ($totallikes || $totalunlikes) {
4501: my $chglikes = -1 * $totallikes;
4502: my $chgunlikes = -1 * $totalunlikes;
4503: &storediscussionlikes($chglikes,$chgunlikes,
4504: $contrib{$idx.':sendername'},
4505: $contrib{$idx.':senderdomain'},
4506: $env{'request.course.id'},
4507: 'delete');
4508: }
4509: } else {
4510: $result = &mt('Discussion status unchanged');
4511: }
4512: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4513: $env{'form.previous'},undef,undef,undef,
4514: undef,undef,undef,$group);
4515: return OK;
4516: } elsif ($env{'form.preview'}) {
4517: # -------------------------------------------------------- User wants a preview
4518: &show_preview($r);
4519: return OK;
4520: } elsif ($env{'form.attach'}) {
4521: # -------------------------------------------------------- Work on attachments
4522: &Apache::loncommon::content_type($r,'text/html');
4523: $r->send_http_header;
4524: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4525: my (@currnewattach,@currdelold,@keepold,$toolarge);
4526: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4527: if (exists($env{'form.addnewattach.filename'})) {
4528: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4529: my $subdir = 'feedback/'.$env{'form.timestamp'};
4530: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4531: push(@currnewattach, $newattachment);
4532: } else {
4533: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4534: }
4535: }
4536: my $attachmenturls;
4537: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4538: my $idx = $env{'form.idx'};
4539: if ($idx) {
4540: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4541: $cdom,$cnum);
4542: $attachmenturls = $contrib{$idx.':attachmenturl'};
4543: }
4544: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4545: $attachmenturls,$attachmax{'text'},$toolarge);
4546: return OK;
4547: } elsif ($env{'form.export'}) {
4548: &Apache::loncommon::content_type($r,'text/html');
4549: $r->send_http_header;
4550: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4551: my $mode='board';
4552: my $status='OPEN';
4553: my $previous=$env{'form.previous'};
4554: if ($feedurl =~ /$LONCAPA::assess_re/) {
4555: $mode='problem';
4556: $status=$Apache::inputtags::status[-1];
4557: }
4558:
4559: my $discussion = &list_discussion($mode,$status,$symb);
4560: my $start_page =
4561: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4562: my $end_page =
4563: &Apache::loncommon::end_page();
4564: $r->print($start_page.$discussion.$end_page);
4565: return OK;
4566:
4567: } elsif ($env{'form.undeleteall'}) {
4568: &Apache::loncommon::content_type($r,'text/html');
4569: $r->send_http_header;
4570: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4571: my $ressymb=&wrap_symb($symb);
4572: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4573: if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4574: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4575: $cdom,$cnum);
4576: $contrib{'deleted'} =~ s/^\.//;
4577: $contrib{'deleted'} =~ s/\.$//;
4578: my $confirm_msg;
4579: if ($contrib{'deleted'} ne '') {
4580: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4581: $cdom,$cnum) eq 'ok') {
4582: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':');
4583: my @ids = split(/\.\./,$contrib{'deleted'});
4584: my (%chglikes,%chgunlikes);
4585: foreach my $idx (@ids) {
4586: my $uname = $contrib{$idx.':sendername'};
4587: my $udom = $contrib{$idx.':senderdomain'};
4588: my ($totallikes,$totalunlikes);
4589: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
4590: $totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}}));
4591: }
4592: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
4593: $totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}}));
4594: }
4595: if ($totallikes || $totalunlikes) {
4596: $chglikes{$uname.':'.$udom} += $totallikes;
4597: $chgunlikes{$uname.':'.$udom} += $totalunlikes;
4598: }
4599: }
4600: foreach my $user (keys(%chglikes)) {
4601: my ($uname,$udom) = split(/:/,$user);
4602: &storediscussionlikes($chglikes{$user},$chgunlikes{$user},
4603: $uname,$udom,$env{'request.course.id'},
4604: 'undelete');
4605: }
4606: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries"));
4607: } else {
4608: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1);
4609: }
4610: } else {
4611: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1);
4612: }
4613: $r->print(
4614: '<br />'
4615: .&Apache::loncommon::confirmwrapper($confirm_msg)
4616: .&Apache::lonhtmlcommon::actionbox(
4617: ["<a href='$feedurl'>".&mt("Return and reload")."</a>"])
4618: );
4619: }
4620: $r->print(&Apache::loncommon::end_page());
4621: return OK;
4622: } else {
4623: # ------------------------------------------------------------- Normal feedback
4624: my $feedurl=$env{'form.postdata'};
4625: $feedurl=~s/^https?\:\/\///;
4626: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4627: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4628: $feedurl=~s/\?.+$//;
4629:
4630: my $symb;
4631: if ($env{'form.replydisc'}) {
4632: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4633: } elsif ($env{'form.editdisc'}) {
4634: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4635: } elsif ($env{'form.origpage'}) {
4636: $symb="";
4637: } elsif ($env{'form.sendmessageonly'}) {
4638: $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
4639: } else {
4640: $symb=&Apache::lonnet::symbread($feedurl);
4641: }
4642: unless ($symb) {
4643: $symb=$env{'form.symb'};
4644: }
4645: if (defined($symb)) {
4646: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4647: } else {
4648: # backward compatibility (bulletin boards used to be 'wrapped')
4649: &Apache::lonenc::check_decrypt(\$feedurl);
4650: &dewrapper(\$feedurl);
4651: }
4652: my $goahead=1;
4653: if ($feedurl=~/$LONCAPA::assess_re/) {
4654: unless ($symb) { $goahead=0; }
4655: }
4656: if (!$goahead) {
4657: # Ambiguous Problem Resource
4658: $r->internal_redirect('/adm/ambiguous');
4659: return OK;
4660: }
4661: if ($feedurl eq '') {
4662: &Apache::loncommon::content_type($r,'text/html');
4663: $r->send_http_header;
4664: &no_redirect_back($r);
4665: return OK;
4666: }
4667: # Go ahead with feedback, no ambiguous reference
4668: unless (
4669: (
4670: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4671: )
4672: ||
4673: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4674: ||
4675: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4676: ||
4677: (($env{'request.course.id'}) && ($feedurl =~ /ext\.tool$/))
4678: ) {
4679: &Apache::loncommon::content_type($r,'text/html');
4680: $r->send_http_header;
4681: # Unable to give feedback
4682: &Apache::lonenc::check_encrypt(\$feedurl);
4683: &no_redirect_back($r,$feedurl,2);
4684: return OK;
4685: }
4686: # --------------------------------------------------- Print login screen header
4687: unless ($env{'form.sendit'}) {
4688: &Apache::lonenc::check_encrypt(\$feedurl);
4689: &Apache::loncommon::content_type($r,'text/html');
4690: $r->send_http_header;
4691: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4692: my ($blocked,$blocktext) =
4693: &Apache::loncommon::blocking_status('boards');
4694: if ($blocked) {
4695: $r->print(&blocked_reply_or_edit($blocktext));
4696: return OK;
4697: }
4698: }
4699: my $options=&screen_header($feedurl,$symb,$group);
4700: if ($options) {
4701: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4702: } else {
4703: &fail_redirect($r,$feedurl,1);
4704: }
4705: return OK;
4706: }
4707:
4708: # Get previous user input
4709: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4710: $symb,$env{'user.name'},$env{'user.domain'},
4711: $env{'request.course.id'});
4712:
4713: # Get output from resource
4714: &Apache::lonenc::check_encrypt(\$feedurl);
4715: my $usersaw=&resource_output($feedurl);
4716:
4717: # Get resource answer (need to allow student to view grades for this to work)
4718: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4719: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4720: my $useranswer=
4721: &Apache::loncommon::get_student_answers(
4722: $usersymb,$env{'user.name'},$env{'user.domain'},
4723: $env{'request.course.id'});
4724: &Apache::lonnet::delenv('allowed.vgr');
4725: # Get attachments, if any, and not too large
4726: my $attachmenturl='';
4727: my $toolarge='';
4728: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4729: ($env{'form.replydisc'})) {
4730: my ($symb,$idx);
4731: if ($env{'form.replydisc'}) {
4732: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4733: } elsif ($env{'form.editdisc'}) {
4734: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4735: } elsif ($env{'form.origpage'}) {
4736: $symb = $env{'form.symb'};
4737: }
4738: &Apache::lonenc::check_decrypt(\$symb);
4739: my @currnewattach = ();
4740: my @deloldattach = ();
4741: my @keepold = ();
4742: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4743: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4744: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4745: } elsif ($env{'form.attachment.filename'}) {
4746: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4747: my $now = time;
4748: my $subdir = 'feedback/'.$now;
4749: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4750: } else {
4751: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4752: }
4753: }
4754: # Filter HTML out of message (could be nasty)
4755: my $override;
4756: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4757: $override = 1;
4758: }
4759: my $message=&clear_out_html($env{'form.comment'},$override);
4760:
4761: # Assemble email
4762: my ($email,$citations)=&assemble_email($message,$prevattempts,
4763: $usersaw,$useranswer);
4764:
4765: # Who gets this?
4766: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4767:
4768: # Actually send mail
4769: my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'}),
4770: $feedurl,$email,$citations,
4771: $attachmenturl,$usersymb,%to);
4772:
4773: # Discussion? Store that.
4774: my $numpost=0;
4775: if ( ($env{'form.discuss'} ne ''
4776: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4777: || $env{'form.anondiscuss'} ne '') {
4778: my $subject = &clear_out_html($env{'form.subject'});
4779: my $anonmode;
4780: if (&Apache::lonnet::allowed('pac',$env{'request.course.id'}.
4781: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
4782: $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4783: }
4784: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4785: $subject,$group);
4786: $numpost++;
4787: }
4788:
4789: # Add to blog?
4790:
4791: my $blog='';
4792: if ($env{'form.blog'}) {
4793: my $subject = &clear_out_html($env{'form.subject'});
4794: $status.=&Apache::lonrss::addentry($env{'user.name'},
4795: $env{'user.domain'},
4796: 'CourseBlog_'.$env{'request.course.id'},
4797: $subject,$message,$feedurl,'public');
4798: if (&Apache::loncommon::course_type() eq 'Community') {
4799: $blog='<br />'.&mt('Added to my community blog').'<br />';
4800: } else {
4801: $blog='<br />'.&mt('Added to my course blog').'<br />';
4802: }
4803: }
4804:
4805: # Receipt screen and redirect back to where came from
4806: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},
4807: undef,undef,undef,undef,undef,undef,$group,$toolarge);
4808: }
4809: return OK;
4810: }
4811:
4812: sub blocked_reply_or_edit {
4813: my ($blocktext) = @_;
4814: return
4815: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4816: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4817: &mt('Back to previous page').
4818: &Apache::loncommon::end_page();
4819: }
4820:
4821: sub wrap_symb {
4822: my ($ressymb)=@_;
4823: if ($ressymb =~ /bulletin___\d+___/) {
4824: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4825: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4826: }
4827: }
4828: return $ressymb;
4829: }
4830:
4831: sub dewrapper {
4832: my ($feedurl)=@_;
4833: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4834: $$feedurl=~s|^/adm/wrapper||;
4835: }
4836: }
4837:
4838: sub get_feedurl {
4839: my ($symb)=@_;
4840: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4841: my $feedurl = &Apache::lonnet::clutter($url);
4842: &dewrapper(\$feedurl);
4843: return $feedurl;
4844: }
4845:
4846: sub get_feedurl_and_clean_symb {
4847: my ($symb)=@_;
4848: &Apache::lonenc::check_decrypt(\$symb);
4849: # backward compatibility (bulletin boards used to be 'wrapped')
4850: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4851: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4852: }
4853: my $feedurl = &get_feedurl($symb);
4854: return ($symb,$feedurl);
4855: }
4856:
4857: sub editing_allowed {
4858: my ($postid,$group) = @_;
4859: $postid = &unescape($postid);
4860: my $can_edit = 0;
4861: if ($group ne '') {
4862: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4863: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4864: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4865: if (&check_group_priv($group,'egp') eq 'ok') {
4866: $can_edit = 1;
4867: }
4868: return $can_edit;
4869: }
4870: }
4871: my $cid = $env{'request.course.id'};
4872: my $role = (split(/\./,$env{'request.role'}))[0];
4873: my $section = $env{'request.course.sec'};
4874: my $allow_editing_config =
4875: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4876: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4877: $can_edit = 1;
4878: } else {
4879: foreach my $editor (split(/,/,$allow_editing_config)) {
4880: my ($editor_role,$editor_sec) = split(/:/,$editor);
4881: if ($editor_role eq $role
4882: && defined($editor_sec)
4883: && defined($section)
4884: && $editor_sec eq $section) {
4885: $can_edit = 1;
4886: last;
4887: }
4888: if ($editor_role eq $role
4889: && !defined($editor_sec)) {
4890: $can_edit = 1;
4891: }
4892: }
4893: }
4894: return $can_edit;
4895: }
4896:
4897: sub check_group_priv {
4898: my ($group,$grp_priv) = @_;
4899: foreach my $priv ('mdg','vcg') {
4900: my $checkcourse = $env{'request.course.id'}.
4901: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4902: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4903: return 'ok';
4904: }
4905: }
4906: if ($grp_priv && $group ne '') {
4907: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4908: return 'ok';
4909: }
4910: }
4911: return '';
4912: }
4913:
4914: sub group_args {
4915: my ($group) = @_;
4916: if ($group eq '') { return ''; }
4917: my $extra_args = '&group='.$group;
4918: if (exists($env{'form.ref'})) {
4919: $extra_args .= '&ref='.$env{'form.ref'};
4920: }
4921: return $extra_args;
4922: }
4923:
4924: sub get_resource_title {
4925: my ($symb,$feedurl) = @_;
4926: my ($restitle,$plainurl);
4927: if (defined($symb)) {
4928: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4929: $restitle = &Apache::lonnet::gettitle($plain_symb);
4930: }
4931: if (defined($feedurl)) {
4932: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4933: }
4934: if (!defined($restitle)) {
4935: if (defined($feedurl)) {
4936: $restitle = &Apache::lonnet::gettitle($plainurl);
4937: }
4938: }
4939: if ($plainurl ne $feedurl) {
4940: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4941: if ($plain_filename eq $restitle) {
4942: $restitle = &mt('Untitled resource');
4943: }
4944: }
4945: if ($restitle eq '') {
4946: $restitle = &mt('Untitled resource');
4947: }
4948: return $restitle;
4949: }
4950:
4951: 1;
4952: __END__
4953:
4954:
4955: =pod
4956:
4957: =head1 NAME
4958:
4959: Apache::lonfeedback.pm
4960:
4961: =head1 SYNOPSIS
4962:
4963: Handles feedback from students to instructors and system administrators.
4964:
4965: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4966:
4967: Used by lonmsg.pm.
4968:
4969: This is part of the LearningOnline Network with CAPA project
4970: described at http://www.lon-capa.org.
4971:
4972: =head1 OVERVIEW
4973:
4974: None
4975:
4976: =head1 SUBROUTINES
4977:
4978: =over
4979:
4980: =item discussion_open()
4981:
4982: =item discussion_visible()
4983:
4984: =item discussion_vote_available()
4985:
4986: =item get_realsymb()
4987:
4988: =item list_discussion()
4989:
4990: =item can_see_hidden()
4991:
4992: =item discussion_link()
4993:
4994: =item send_feedback_link()
4995:
4996: =item send_message_link()
4997:
4998: =item action_links_bar()
4999:
5000: =item postingform_display()
5001:
5002: =item build_posting_display
5003:
5004: =item filter_regexp()
5005:
5006: =item get_post_contents()
5007:
5008: =item replicate_attachments()
5009:
5010: =item mail_screen()
5011:
5012: =item print_display_options()
5013:
5014: =item print_sortfilter_options()
5015:
5016: =item print_showposters()
5017:
5018: =item get_post_versions()
5019:
5020: =item get_post_attachments()
5021:
5022: =item fail_redirect()
5023:
5024: =item redirect_back()
5025:
5026: =item no_redirect_back()
5027:
5028: =item screen_header()
5029:
5030: =item resource_output()
5031:
5032: =item clear_out_html()
5033:
5034: =item assemble_email()
5035:
5036: =item feedback_available()
5037:
5038: =item send_msg()
5039:
5040: =item adddiscuss()
5041:
5042: =item get_discussion_info()
5043:
5044: =item show_preview()
5045:
5046: =item newline_to_br()
5047:
5048: =item tidy_html()
5049:
5050: =item generate_preview_button()
5051:
5052: =item modify_attachments()
5053:
5054: =item process_attachments()
5055:
5056: =item generate_attachments_button()
5057:
5058: =item extract_attachments()
5059:
5060: =item construct_attachmenturl()
5061:
5062: =item add_blog_checkbox()
5063:
5064: =item has_discussion()
5065:
5066: =item sort_filter_names()
5067:
5068: =item handler()
5069:
5070: =item blocked_reply_or_edit()
5071:
5072: =item wrap_symb()
5073:
5074: =item dewrapper()
5075:
5076: =item get_feedurl()
5077:
5078: =item get_feedurl_and_clean_symb()
5079:
5080: =item editing_allowed()
5081:
5082: =item check_group_priv()
5083:
5084: =item group_args()
5085:
5086: =item get_resource_title()
5087:
5088: =back
5089:
5090: =cut
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