1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.393 2023/09/15 23:00:16 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'}}} = ("$idx");
1313: }
1314: # Set up for sorting by last name, then first name
1315: my %names = &Apache::loncommon::getnames($contrib{$idx.':sendername'},
1316: $contrib{$idx.':senderdomain'});
1317: my $lastname = $names{'lastname'};
1318: my $firstname = $names{'firstname'};
1319: if ($lastname eq '') {
1320: $lastname = '_';
1321: }
1322: if ($firstname eq '') {
1323: $firstname = '_';
1324: }
1325: unless (defined($$namesort{$lastname})) {
1326: %{$$namesort{$lastname}} = ();
1327: }
1328: if (defined($$namesort{$lastname}{$firstname})) {
1329: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1330: } else {
1331: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1332: }
1333: if ($outputtarget ne 'tex') {
1334: # Add karma stars
1335: my $karma=&userkarma($contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
1336: for (my $i=1;$i<=$karma;$i++) {
1337: $sender.='<img border="0" src="/res/adm/pages/star.gif" alt="'.&mt('Contributor Kudos').'" />';
1338: }
1339: # Can people edit this?
1340: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1341: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1342: $sender.=' '.
1343: &discussion_link($ressymb,&mt('Edit'),'editdisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1344: unless ($seehidden) {
1345: my $grpargs = &group_args($group);
1346: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1347: $sender .= '">'.&mt('Delete').'</a>';
1348: }
1349: }
1350: }
1351: if ($seehidden) {
1352: if ($hiddens{$idx}) {
1353: unless ($studenthidden) {
1354: $sender.=' '.
1355: &discussion_link($ressymb,&mt('Make Visible'),'unhide',$idx,$$newpostsflag,$prevread,&group_args($group));
1356: }
1357: } else {
1358: $sender.=' '.
1359: &discussion_link($ressymb,&mt('Hide'),'hide',$idx,$$newpostsflag,$prevread,&group_args($group));
1360: }
1361: my $grpargs = &group_args($group);
1362: $sender.=
1363: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1364: $sender .= &mt('Delete').'</a>';
1365: }
1366: }
1367: } else {
1368: if ($screenname) {
1369: $sender='<i>'.$screenname.'</i>';
1370: } else {
1371: $sender='<i>'.$$anonhash{$key}.'</i>';
1372: }
1373: $sender = '<b>'.$sender.'</b>';
1374: # Set up for sorting by domain, then username for anonymous
1375: unless (defined($$usernamesort{'__anon'})) {
1376: %{$$usernamesort{'__anon'}} = ();
1377: }
1378: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1379: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1380: } else {
1381: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1382: }
1383: # Set up for sorting by last name, then first name for anonymous
1384: unless (defined($$namesort{'__anon'})) {
1385: %{$$namesort{'__anon'}} = ();
1386: }
1387: if (defined($$namesort{'__anon'}{'__anon'})) {
1388: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1389: } else {
1390: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1391: }
1392: }
1393: if ($outputtarget ne 'tex') {
1394: if (&discussion_open($status)) {
1395: if (($group ne '') &&
1396: (&check_group_priv($group,'pgd') eq 'ok')) {
1397: $sender.=' '.
1398: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1399: } elsif (&Apache::lonnet::allowed('pch',
1400: $env{'request.course.id'}.
1401: ($env{'request.course.sec'}?'/'.
1402: $env{'request.course.sec'}:''))) {
1403: $sender.=' '.
1404: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread);
1405: }
1406: }
1407: if ($viewgrades) {
1408: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1409: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1410: }
1411: if ($$dischash{$readkey}=~/\.$idx\./) {
1412: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1413: } else {
1414: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1415: }
1416: }
1417: }
1418: #figure out at what position this needs to print
1419: }
1420: if ($outputtarget eq 'export' || $message) {
1421: my $thisindex=$idx;
1422: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1423: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1424: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1425: }
1426: $$alldiscussion{$thisindex}=$idx;
1427: $$shown{$idx} = 0;
1428: $index[$idx]=$thisindex;
1429: }
1430: if ($outputtarget eq 'export') {
1431: %{$$imsitems{$idx}} = ();
1432: $$imsitems{$idx}{'isvisible'}='true';
1433: if ($hiddens{$idx}) {
1434: $$imsitems{$idx}{'isvisible'}='false';
1435: }
1436: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1437: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1438: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1439: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1440: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1441: $contrib{$idx.':sendername'}.':'.
1442: $contrib{$idx.':senderdomain'}.')';
1443: $$imsitems{$idx}{'isanonymous'}='false';
1444: if ($contrib{$idx.':anonymous'}) {
1445: $$imsitems{$idx}{'isanonymous'}='true';
1446: }
1447: $$imsitems{$idx}{'currversion'}=$numoldver;
1448: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1449: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1450: $$shown{$idx} = 1;
1451: }
1452: } else {
1453: if ($message) {
1454: my $spansize = 2;
1455: my ($uname,$udom);
1456: if ($showonlyunread && $prevread > $posttime) {
1457: $$notshown{$idx} = 1;
1458: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1459: $$notshown{$idx} = 1;
1460: } else {
1461: # apply filters
1462: $uname = $contrib{$idx.':sendername'};
1463: $udom = $contrib{$idx.':senderdomain'};
1464: my $poster = $uname.':'.$udom;
1465: if ($env{'form.totposters'} ne '') {
1466: if ($totposters == 0) {
1467: $$shown{$idx} = 0;
1468: } elsif ($totposters > 0) {
1469: if (grep/^$poster$/,@{$posters}) {
1470: $$shown{$idx} = 1;
1471: }
1472: }
1473: } elsif ($sortposts) {
1474: if ($skiptest) {
1475: $$shown{$idx} = 1;
1476: } else {
1477: foreach my $role (@{$$roleinfo{$poster}}) {
1478: if ($role =~ /^cc:/) {
1479: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1480: if ($role =~ /$cc_regexp/) {
1481: $$shown{$idx} = 1;
1482: last;
1483: }
1484: } elsif ($role =~ /^$rolematch$/) {
1485: $$shown{$idx} = 1;
1486: last;
1487: }
1488: }
1489: }
1490: if ($$shown{$idx} && !$skip_group_check) {
1491: my $showflag = 0;
1492: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1493: foreach my $grp (@{$grouppick}) {
1494: if (grep/^\Q$grp\E$/,
1495: keys(%{$$classgroups{$poster}{active}})) {
1496: $showflag = 1;
1497: last;
1498: }
1499: }
1500: }
1501: if ($showflag) {
1502: $$shown{$idx} = 1;
1503: } else {
1504: $$shown{$idx} = 0;
1505: }
1506: }
1507: } else {
1508: $$shown{$idx} = 1;
1509: }
1510: }
1511: unless ($$notshown{$idx} == 1) {
1512: if ($prevread > 0 && $prevread <= $posttime) {
1513: $$newitem{$idx} = 1;
1514: $$discussionitems[$idx] .= '<font color="#FF0000"><b>'.&mt('NEW').' </b></font>';
1515: } else {
1516: $$newitem{$idx} = 0;
1517: }
1518: $$discussionitems[$idx] .= '<b>'.$subject.'</b> '.
1519: $sender.' '.$vgrlink.' ('.
1520: &Apache::lonlocal::locallocaltime($posttime).')';
1521: if ($$dischash{$toggkey}) {
1522: $$discussionitems[$idx].=' '.$ctlink;
1523: }
1524: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1525: my $likestyle;
1526: if ($seeid || $canvote) {
1527: # Figure out size based on likes
1528: my $class = 'zero';
1529: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1530: if ($thislikes>$twoplus) {
1531: $class = 'twoplus';
1532: } elsif ($thislikes>$oneplus) {
1533: $class = 'oneplus';
1534: }
1535: if ($thislikes<$twominus) {
1536: $class = 'twominus';
1537: } elsif ($thislikes<$oneminus) {
1538: $class = 'oneminus';
1539: }
1540: $likestyle = $votestyle{$class};
1541: }
1542: # Actually glue in the message itself
1543: $$discussionitems[$idx].= '<br /><blockquote>'.
1544: "<div $likestyle>".
1545: $message.
1546: '</div></blockquote>';
1547: if ($canvote) {
1548: my $ownpost;
1549: if (($uname eq $env{'user.name'}) &&
1550: ($udom eq $env{'user.domain'})) {
1551: $ownpost = 1;
1552: }
1553: # Put in the like and unlike buttons
1554: if ($ownpost || (($hiddens{$idx}) && ($seehidden))) {
1555: my $novote;
1556: if ($ownpost) {
1557: $novote = &mt('No voting for your own posts.');
1558: } else {
1559: $novote = &mt('No voting for hidden posts.');
1560: }
1561: &html_escape(\$novote);
1562: $$discussionitems[$idx].=
1563: '<a href="javascript:alert('."'$novote'".');" style="text-decoration: none;">'.
1564: '<img border="0" src="/res/adm/pages/thumbsup_novote.png" alt="'.$novote.'" /> '.
1565: '<img border="0" src="/res/adm/pages/thumbsdown_novote.png" alt="'.$novote.'" /></a>';
1566:
1567: } else {
1568: if ($userlikes{$idx}) {
1569: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1570: } else {
1571: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1572: }
1573: if ($userunlikes{$idx}) {
1574: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1575: } else {
1576: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1577: }
1578: }
1579: }
1580: if ($seeid || $canvote) {
1581: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1582: if ($thislikes>0) {
1583: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1584: } elsif ($thislikes<0) {
1585: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1586: }
1587: }
1588: # If there is any history to this post, inform the reader
1589: if ($contrib{$idx.':history'}) {
1590: my @postversions = ();
1591: $$discussionitems[$idx] .= ' '.&mt('This post has been edited by the author.');
1592: if ($seehidden) {
1593: $$discussionitems[$idx] .= ' '.
1594: &discussion_link($ressymb,&mt('Display all versions'),'allversions',$idx,$$newpostsflag,$prevread,&group_args($group));
1595: }
1596: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1597: if ($contrib{$idx.':history'} =~ m/:/) {
1598: @postversions = split(/:/,$contrib{$idx.':history'});
1599: } else {
1600: @postversions = ("$contrib{$idx.':history'}");
1601: }
1602: for (my $i=0; $i<@postversions; $i++) {
1603: my $version = $i+1;
1604: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1605: }
1606: }
1607: # end of unless ($$notshown ...)
1608: }
1609: # end of if ($message) ...
1610: }
1611: # end of the else-branch of target being export
1612: }
1613: # end of unless hidden or deleted
1614: }
1615: # end of the loop over all discussion entries
1616: }
1617: # end of "if there actually are any discussions
1618: }
1619: # end of subroutine "build_posting_display"
1620: }
1621:
1622: sub filter_regexp {
1623: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1624: my ($roleregexp,$secregexp,$statusregexp);
1625: my $skiptest = 1;
1626: if (@{$rolefilter} > 0) {
1627: my @okrolefilter = ();
1628: foreach my $role (@{$rolefilter}) {
1629: unless ($role eq '') {
1630: push(@okrolefilter, $role);
1631: }
1632: }
1633: if (@okrolefilter > 0) {
1634: if (grep/^all$/,@okrolefilter) {
1635: $roleregexp='[^:]+';
1636: } else {
1637: if (@okrolefilter == 1) {
1638: $roleregexp=$okrolefilter[0];
1639: } else {
1640: $roleregexp='('.join('|',@okrolefilter).')';
1641: }
1642: $skiptest = 0;
1643: }
1644: }
1645: }
1646: if (@{$sectionpick} > 0) {
1647: my @oksectionpick = ();
1648: foreach my $sec (@{$sectionpick}) {
1649: unless ($sec eq '') {
1650: push(@oksectionpick, $sec);
1651: }
1652: }
1653: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1654: if (@oksectionpick == 1) {
1655: $secregexp = $oksectionpick[0];
1656: } else {
1657: $secregexp .= '('.join('|',@oksectionpick).')';
1658: }
1659: $skiptest = 0;
1660: } else {
1661: $secregexp .= '[^:]*';
1662: }
1663: }
1664:
1665: if (defined($statusfilter) && $statusfilter ne '') {
1666: if ($statusfilter eq 'all') {
1667: $statusregexp = '[^:]+';
1668: } else {
1669: $statusregexp = $statusfilter;
1670: $skiptest = 0;
1671: }
1672: }
1673: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1674: }
1675:
1676:
1677: sub get_post_contents {
1678: my ($contrib,$idx,$seeid,$seehidden,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1679: my $discussion = '';
1680: my $start=$numver;
1681: my $end=$numver + 1;
1682: %{$$imsfiles{$idx}}=();
1683: if ($type eq 'allversions') {
1684: unless($seehidden) {
1685: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1686: return $discussion;
1687: }
1688: }
1689: # $$screenname=&Apache::loncommon::screenname(
1690: # $$contrib{$idx.':sendername'},
1691: # $$contrib{$idx.':senderdomain'});
1692: $$plainname=&Apache::loncommon::nickname(
1693: $$contrib{$idx.':sendername'},
1694: $$contrib{$idx.':senderdomain'});
1695: $$screenname=$$contrib{$idx.':screenname'};
1696: $$showaboutme = &Apache::loncommon::aboutme_on($$contrib{$idx.':sendername'},
1697: $$contrib{$idx.':senderdomain'});
1698: my $sender = $$plainname;
1699: if ($$showaboutme) {
1700: $sender = &Apache::loncommon::aboutmewrapper(
1701: $$plainname,
1702: $$contrib{$idx.':sendername'},
1703: $$contrib{$idx.':senderdomain'});
1704: }
1705: if ($seeid) {
1706: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1707: $$contrib{$idx.':senderdomain'}.')';
1708: }
1709: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1710: my @postversions = ();
1711: if ($type eq 'allversions' || $type eq 'export') {
1712: $start = 0;
1713: if ($$contrib{$idx.':history'}) {
1714: @postversions = split(/:/,$$contrib{$idx.':history'});
1715: }
1716: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1717: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1718: push(@postversions,$$contrib{$idx.':timestamp'});
1719: $end = @postversions;
1720: } else {
1721: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1722: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1723: }
1724:
1725: if ($$contrib{$idx.':anonymous'}) {
1726: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1727: }
1728: if ($type eq 'allversions') {
1729: $discussion=('<b>'.$sender.'</b><br /><ul>');
1730: }
1731: for (my $i=$start; $i<$end; $i++) {
1732: my ($timesent,$attachmsg);
1733: my %currattach = ();
1734: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1735: unless (&contains_block_html($messages->{$i})) {
1736: &newline_to_br(\$messages->{$i});
1737: }
1738: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1739: $$subjects{$i}=~s/\n/\<br \/\>/g;
1740: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1741: if ($attachmenturls) {
1742: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1743: }
1744: if ($type eq 'export') {
1745: $$imsfiles{$idx}{$i} = '';
1746: if ($attachmsg) {
1747: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1748: foreach my $key (sort(keys(%currattach))) {
1749: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1750: my $fname = $1.$3.'/'.$4;
1751: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1752: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1753: }
1754: }
1755: }
1756: } else {
1757: if ($attachmsg) {
1758: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1759: } else {
1760: $$attachtxt{$i} = '';
1761: }
1762: }
1763: if ($type eq 'allversions') {
1764: $discussion.= <<"END";
1765: <li><b>$$subjects{$i}</b>, $timesent<br />
1766: $$messages{$i}<br />
1767: $$attachtxt{$i}</li>
1768: END
1769: }
1770: }
1771: if ($type eq 'allversions') {
1772: $discussion.='</ul>';
1773: return $discussion;
1774: } else {
1775: return;
1776: }
1777: }
1778:
1779: sub replicate_attachments {
1780: my ($attachrefs,$tempexport) = @_;
1781: my $response;
1782: foreach my $id (keys(%{$attachrefs})) {
1783: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1784: my $path = $tempexport;
1785: my $tail = $1.'/'.$2.$4;
1786: my @extras = split(/\//,$tail);
1787: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1788: if (!-e $destination) {
1789: my $i= 0;
1790: while ($i<@extras) {
1791: $path .= '/'.$extras[$i];
1792: if (!-e $path) {
1793: mkdir($path,0700);
1794: }
1795: $i ++;
1796: }
1797: my ($content,$rtncode);
1798: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1799: if ($uploadreply eq 'ok') {
1800: my $attachcopy;
1801: if ($attachcopy = Apache::File->new('>'.$destination)) {
1802: print $attachcopy $content;
1803: close($attachcopy);
1804: } else {
1805: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1806: }
1807: } else {
1808: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1809: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1810: }
1811: }
1812: }
1813: }
1814: return $response;
1815: }
1816:
1817: sub mail_screen {
1818: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1819: if (exists($env{'form.origpage'})) {
1820: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1821: }
1822:
1823: my %lt = &Apache::lonlocal::texthash(
1824: 'myqu' => 'Question/comment/feedback:',
1825: 'reta' => 'Retained attachments',
1826: 'atta' => 'Attachment',
1827: );
1828: if ($env{'form.editdisc'} || $env{'form.replydisc'}){
1829: $lt{'myqu'} = &mt('Post Discussion');
1830: }
1831: my $restitle = &get_resource_title($caller_symb,$feedurl);
1832: my $quote='';
1833: my $subject = '';
1834: my $comment = '';
1835: my $prevtag = '';
1836: my $parentmsg = '';
1837: my ($symb,$idx,$attachmenturls);
1838: my $numoldver = 0;
1839: my $attachmsg = '';
1840: my $newattachmsg = '';
1841: my @currnewattach = ();
1842: my @currdelold = ();
1843: my @keepold = ();
1844: my %attachments = ();
1845: my %currattach = ();
1846: my $attachnum = 0;
1847: my $anonchk = (<<END);
1848: function anonchk() {
1849: for (var i=0; i < document.mailform.discuss.length; i++) {
1850: if (document.mailform.discuss[i].checked) {
1851: document.attachment.discuss.value =
1852: document.mailform.discuss[i].value;
1853: }
1854: }
1855: if (document.mailform.blog.checked) {
1856: document.attachment.blog.value = 1;
1857: }
1858: return
1859: }
1860: END
1861: my $anonscript;
1862: if (exists($env{'form.origpage'})) {
1863: $anonscript = (<<END);
1864: function setposttype() {
1865: var disc = "$env{'form.discuss'}";
1866: for (var i=0; i < document.mailform.discuss.length; i++) {
1867: if (disc == document.mailform.discuss[i].value) {
1868: document.mailform.discuss[i].checked = 1;
1869: }
1870: }
1871: var blog = "$env{'form.blog'}";
1872: if (blog == 1) {
1873: document.mailform.blog.checked=1;
1874: }
1875: return
1876: }
1877: END
1878: } else {
1879: $anonscript = (<<END);
1880: function setposttype() {
1881: return
1882: }
1883: END
1884: }
1885: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1886: if ($env{'form.replydisc'}) {
1887: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1888: } else {
1889: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1890: }
1891: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1892: $env{'course.'.$env{'request.course.id'}.'.domain'},
1893: $env{'course.'.$env{'request.course.id'}.'.num'});
1894: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1895: my $numoldver = 0;
1896: if ($contrib{$idx.':history'}) {
1897: if ($contrib{$idx.':history'} =~ /:/) {
1898: my @oldversions = split(/:/,$contrib{$idx.':history'});
1899: $numoldver = @oldversions;
1900: } else {
1901: $numoldver = 1;
1902: }
1903: }
1904: if ($idx > 0) {
1905: my (%msgversions,%subversions,$htmldecode);
1906: $htmldecode = 0;
1907: if ($env{'form.replydisc'}) {
1908: $htmldecode = 1;
1909: }
1910: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1911: &get_post_versions(\%subversions,$contrib{$idx.':subject'},$htmldecode,
1912: $numoldver);
1913: $subject = $subversions{$numoldver};
1914: if ($env{'form.replydisc'}) {
1915: $quote = $msgversions{$numoldver};
1916: $subject = &HTML::Entities::encode(&mt('Re: ').$subject,'<>&"');
1917: } else {
1918: $comment = $msgversions{$numoldver};
1919: }
1920: }
1921: if ($env{'form.editdisc'}) {
1922: $attachmenturls = $contrib{$idx.':attachmenturl'};
1923: if (defined($contrib{$idx.':replyto'})) {
1924: $parentmsg = $contrib{$idx.':replyto'};
1925: }
1926: unless (exists($env{'form.origpage'})) {
1927: my $anonflag = 'nonanon';
1928: if ($contrib{$idx.':anonymous'}) {
1929: $anonflag = 'anon';
1930: }
1931: $anonscript = (<<END);
1932: function setposttype () {
1933: var currtype = "$anonflag";
1934: for (var i=0; i<document.mailform.discuss.length; i++) {
1935: if (document.mailform.elements.discuss[i].value == currtype ) {
1936: document.mailform.elements.discuss[i].checked=1;
1937: }
1938: }
1939: return
1940: }
1941: END
1942: }
1943: }
1944: }
1945: if ($env{'form.previous'}) {
1946: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1947: }
1948: }
1949:
1950: if ($env{'form.origpage'}) {
1951: $subject = &unescape($env{'form.subject'});
1952: $comment = &unescape($env{'form.comment'});
1953: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1954: }
1955: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1,($env{'form.modal'}?'popup':0));
1956: my $send=&mt('Send');
1957: my $alert = &mt('Please select a feedback type.');
1958: &js_escape(\$alert);
1959: my $js= <<END;
1960: <script type="text/javascript">
1961: //<!--
1962: function gosubmit() {
1963: var rec=0;
1964: if (typeof(document.mailform.elements.discuss)!="undefined") {
1965: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1966: if (document.mailform.elements.discuss.checked ) {
1967: rec=1;
1968: }
1969: } else {
1970: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1971: if (document.mailform.elements.discuss[i].checked ) {
1972: rec=1;
1973: }
1974: }
1975: }
1976: }
1977: if (typeof(document.mailform.elements.blog)!="undefined") {
1978: if (document.mailform.elements.blog.checked) {
1979: rec=1;
1980: }
1981: }
1982:
1983: if (rec) {
1984: if (typeof(document.mailform.onsubmit)=='function') {
1985: document.mailform.onsubmit();
1986: }
1987: document.mailform.submit();
1988: } else {
1989: alert('$alert');
1990: }
1991: }
1992: $anonchk
1993: $anonscript
1994: //-->
1995: </script>
1996: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
1997: END
1998:
1999: my ($textareaheader,$textareaclass);
2000: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
2001: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
2002: $textareaclass = 'class="LC_richDefaultOff"';
2003: if ($env{'request.course.id'}) {
2004: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
2005: undef($textareaclass);
2006: }
2007: }
2008: }
2009:
2010: # Breadcrumbs
2011: my $brcrum = [{'href' => '',
2012: 'text' => 'Resource Feedback and Discussion'}];
2013:
2014: my %onload = ('onload' => 'window.focus();setposttype();');
2015: my %parms=('add_entries' => \%onload);
2016: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
2017: my $start_page=
2018: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms);
2019:
2020: if ($quote ne '') {
2021: $quote = &HTML::Entities::decode($quote);
2022: unless (&contains_block_html($quote)) {
2023: &newline_to_br(\$quote);
2024: }
2025: $quote=&Apache::lonhtmlcommon::start_pick_box().
2026: &Apache::lonhtmlcommon::row_title(&mt('Quote')).
2027: &Apache::lontexconvert::msgtexconverted($quote).
2028: &Apache::lonhtmlcommon::row_closure(1).
2029: &Apache::lonhtmlcommon::end_pick_box();
2030: }
2031: my $header='';
2032: unless ($env{'form.modal'}) {
2033: $header="<h2><tt>$restitle</tt></h2>";
2034: }
2035: $r->print(<<END);
2036: $start_page
2037: <h1>$lt{'myqu'}</h1>
2038: $header
2039: <form action="/adm/feedback" method="post" name="mailform"
2040: enctype="multipart/form-data">
2041: $prevtag
2042: <input type="hidden" name="postdata" value="$feedurl" />
2043: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2044: END
2045: if ($env{'form.replydisc'}) {
2046: $r->print(<<END);
2047: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
2048: END
2049: } elsif ($env{'form.editdisc'}) {
2050: $r->print(<<END);
2051: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
2052: <input type="hidden" name="parentmsg" value="$parentmsg" />
2053: END
2054: }
2055: $r->print(<<END);
2056: $options
2057: <br />
2058: END
2059: $r->print(&Apache::lonhtmlcommon::start_pick_box());
2060: $r->print(<<END);
2061: $quote
2062: <p>
2063: $textareaheader
2064: </p>
2065: <p>
2066: $latexHelp
2067: </p>
2068: <p>
2069: END
2070:
2071:
2072: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
2073: $r->print('<input type="text" name="subject" size="30" value="'.
2074: $subject.'" /></p>');
2075: $r->print(&Apache::lonhtmlcommon::row_closure());
2076: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
2077: $r->print('<textarea name="comment" id="comment" cols="55" rows="10" '.
2078: $textareaclass.'>'.$comment.
2079: '</textarea>');
2080: $r->print(&Apache::lonhtmlcommon::row_closure(1));
2081: $r->print(&Apache::lonhtmlcommon::end_pick_box());
2082:
2083: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
2084: if ($env{'form.origpage'}) {
2085: foreach my $attach (@currnewattach) {
2086: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
2087: }
2088: foreach my $oldatt (@currdelold) {
2089: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
2090: }
2091: }
2092: if ($env{'form.editdisc'}) {
2093: if ($attachmenturls) {
2094: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
2095: $attachnum = scalar(keys(%currattach));
2096: foreach my $key (keys(%currattach)) {
2097: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
2098: }
2099: }
2100: }
2101: } else {
2102: $r->print(<<END);
2103: <p>
2104: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" class="LC_flUpload" />
2105: <input type="hidden" id="LC_free_space" value="131072" />
2106: </p>
2107: END
2108: }
2109: if (exists($env{'form.group'})) {
2110: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2111: }
2112: if (exists($env{'form.ref'})) {
2113: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2114: }
2115: $r->print(<<END);
2116: <input type="hidden" name="sendit" value="1" /><br /><br />
2117: <input type="button" value="$send" onclick='gosubmit();' />
2118: </form>
2119: END
2120: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
2121: my $now = time;
2122: my $ressymb = $symb;
2123: &Apache::lonenc::check_encrypt(\$ressymb);
2124: my $postidx = '';
2125: if ($env{'form.editdisc'}) {
2126: $postidx = $idx;
2127: }
2128: if (@currnewattach > 0) {
2129: $attachnum += @currnewattach;
2130: }
2131: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2132: if ($attachnum > 0) {
2133: if (@currnewattach > 0) {
2134: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
2135: if (@currnewattach > 1) {
2136: $newattachmsg .= '<ol>';
2137: foreach my $item (@currnewattach) {
2138: $item =~ m#.*/([^/]+)$#;
2139: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2140: }
2141: $newattachmsg .= '</ol>'."\n";
2142: } else {
2143: $currnewattach[0] =~ m#.*/([^/]+)$#;
2144: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2145: }
2146: }
2147: if ($attachmsg) {
2148: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2149: }
2150: if ($newattachmsg) {
2151: $r->print("$newattachmsg");
2152: }
2153: }
2154: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
2155: }
2156: $r->print(&generate_preview_button().
2157: &Apache::loncommon::end_page());
2158:
2159: }
2160:
2161: sub print_display_options {
2162: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2163: &Apache::loncommon::content_type($r,'text/html');
2164: $r->send_http_header;
2165:
2166: my $function = &Apache::loncommon::get_users_function();
2167: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2168: $env{'user.domain'});
2169:
2170: my %lt = &Apache::lonlocal::texthash(
2171: 'pref' => 'Display Preference',
2172: 'curr' => 'Current setting ',
2173: 'actn' => 'Action',
2174: 'deff' => 'Default for all discussions',
2175: 'prca' => 'Preferences can be set for this discussion that determine ....',
2176: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2177: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2178: 'wipa' => 'Whether individual posts can be marked as read/unread',
2179: 'allposts' => 'All posts',
2180: 'unread' => 'New posts only',
2181: 'unmark' => 'Posts not marked read',
2182: 'ondisp' => 'Once displayed',
2183: 'onmark' => 'Once marked not NEW',
2184: 'toggon' => 'Shown',
2185: 'toggoff' => 'Not shown',
2186: 'disa' => 'Posts displayed?',
2187: 'npmr' => 'New posts cease to be identified as "NEW"?',
2188: 'dotm' => 'Option to mark each post as read/unread?',
2189: 'chgt' => 'Change to ',
2190: 'mkdf' => 'Set to ',
2191: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2192: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2193: );
2194: my %js_lt = &Apache::lonlocal::texthash(
2195: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2196: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2197: );
2198: &js_escape(\%js_lt);
2199:
2200: my $dispchangeA = $lt{'unread'};
2201: my $dispchangeB = $lt{'unmark'};
2202: my $markchange = $lt{'ondisp'};
2203: my $toggchange = $lt{'toggon'};
2204: my $currdisp = $lt{'allposts'};
2205: my $currmark = $lt{'onmark'};
2206: my $discdisp = 'allposts';
2207: my $discmark = 'onmark';
2208: my $currtogg = $lt{'toggoff'};
2209: my $disctogg = 'toggoff';
2210:
2211: if ($dispchgA eq 'allposts') {
2212: $dispchangeA = $lt{'allposts'};
2213: $currdisp = $lt{'unread'};
2214: $discdisp = 'unread';
2215: }
2216:
2217: if ($markchg eq 'markonread') {
2218: $markchange = $lt{'onmark'};
2219: $currmark = $lt{'ondisp'};
2220: $discmark = 'ondisp';
2221: }
2222:
2223: if ($dispchgB eq 'onlyunread') {
2224: $dispchangeB = $lt{'unread'};
2225: $currdisp = $lt{'unmark'};
2226: $discdisp = 'unmark';
2227: }
2228: if ($toggchg eq 'toggoff') {
2229: $toggchange = $lt{'toggoff'};
2230: $currtogg = $lt{'toggon'};
2231: $disctogg = 'toggon';
2232: }
2233:
2234: my $js = <<END;
2235: <script type="text/javascript">
2236: function discdispChk(caller) {
2237: var disctogg = '$toggchg'
2238: if (caller == 0) {
2239: if (document.modifydisp.discdisp[0].checked == true) {
2240: if (document.modifydisp.discdisp[1].checked == true) {
2241: document.modifydisp.discdisp[1].checked = false
2242: }
2243: }
2244: }
2245: if (caller == 1) {
2246: if (document.modifydisp.discdisp[1].checked == true) {
2247: if (document.modifydisp.discdisp[0].checked == true) {
2248: document.modifydisp.discdisp[0].checked = false
2249: }
2250: if (disctogg == 'toggon') {
2251: document.modifydisp.disctogg.checked = true
2252: }
2253: if (disctogg == 'toggoff') {
2254: document.modifydisp.disctogg.checked = false
2255: }
2256: }
2257: }
2258: if (caller == 2) {
2259: var dispchgB = '$dispchgB'
2260: if (disctogg == 'toggoff') {
2261: if (document.modifydisp.disctogg.checked == true) {
2262: if (dispchgB == 'onlyunmark') {
2263: document.modifydisp.discdisp[1].checked = false
2264: }
2265: }
2266: }
2267: }
2268: }
2269:
2270: function setDisp() {
2271: var prev = "$previous"
2272: var chktotal = 0
2273: if (document.modifydisp.discdisp[0].checked == true) {
2274: document.modifydisp.$dispchgA.value = "$symb"
2275: chktotal ++
2276: }
2277: if (document.modifydisp.discdisp[1].checked == true) {
2278: document.modifydisp.$dispchgB.value = "$symb"
2279: chktotal ++
2280: }
2281: if (document.modifydisp.discmark.checked == true) {
2282: document.modifydisp.$markchg.value = "$symb"
2283: chktotal ++
2284: }
2285: if (document.modifydisp.disctogg.checked == true) {
2286: document.modifydisp.$toggchg.value = "$symb"
2287: chktotal ++
2288: }
2289: if (chktotal > 0) {
2290: document.modifydisp.submit()
2291: } else {
2292: if(confirm("$js_lt{'yhni'}. \\n$js_lt{'ywbr'}")) {
2293: if (prev > 0) {
2294: location.href = "$feedurl?previous=$previous"
2295: } else {
2296: location.href = "$feedurl"
2297: }
2298: }
2299: }
2300: }
2301: </script>
2302: END
2303:
2304:
2305: my $start_page =
2306: &Apache::loncommon::start_page('Discussion display options',$js);
2307: my $end_page =
2308: &Apache::loncommon::end_page();
2309: $r->print(<<END);
2310: $start_page
2311: <form name="modifydisp" method="post" action="/adm/feedback">
2312: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2313: <br />
2314: END
2315: $r->print(&Apache::loncommon::start_data_table());
2316: $r->print(<<END);
2317: <tr>
2318: <th>$lt{'pref'}</td>
2319: <th>$lt{'curr'}</td>
2320: <th>$lt{'actn'}?</td>
2321: </tr>
2322: END
2323: $r->print(&Apache::loncommon::start_data_table_row());
2324: $r->print(<<END);
2325: <td>$lt{'disa'}</td>
2326: <td>$lt{$discdisp}</td>
2327: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2328: <br />
2329: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2330: </td>
2331: END
2332: $r->print(&Apache::loncommon::end_data_table_row());
2333: $r->print(&Apache::loncommon::start_data_table_row());
2334: $r->print(<<END);
2335: <td>$lt{'npmr'}</td>
2336: <td>$lt{$discmark}</td>
2337: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2338: END
2339: $r->print(&Apache::loncommon::end_data_table_row());
2340: $r->print(&Apache::loncommon::start_data_table_row());
2341: $r->print(<<END);
2342: <td>$lt{'dotm'}</td>
2343: <td>$lt{$disctogg}</td>
2344: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2345: END
2346: my $save = &mt('Save');
2347: $r->print(&Apache::loncommon::end_data_table_row());
2348: $r->print(&Apache::loncommon::end_data_table());
2349: $r->print(<<END);
2350: <br />
2351: <br />
2352: <input type="hidden" name="symb" value="$symb" />
2353: <input type="hidden" name="previous" value="$previous" />
2354: <input type="hidden" name="$dispchgA" value="" />
2355: <input type="hidden" name="$dispchgB" value="" />
2356: <input type="hidden" name="$markchg" value="" />
2357: <input type="hidden" name="$toggchg" value="" />
2358: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2359: END
2360: if (exists($env{'form.group'})) {
2361: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2362: }
2363: if (exists($env{'form.ref'})) {
2364: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2365: }
2366: $r->print("
2367: <br />
2368: <br />
2369: </form>
2370: $end_page
2371: ");
2372: return;
2373: }
2374:
2375: sub print_sortfilter_options {
2376: my ($r,$symb,$previous,$feedurl) = @_;
2377:
2378: &Apache::loncommon::content_type($r,'text/html');
2379: $r->send_http_header;
2380:
2381: &Apache::lonenc::check_encrypt(\$symb);
2382: my @sections;
2383: my $section_sel = '';
2384: my $numvisible = 5;
2385: my @groups;
2386: my $group_sel = '';
2387: my $numgroupvis = 5;
2388: my %sectioncount = &Apache::loncommon::get_sections();
2389: my @courseroles = qw(st ad ep ta in);
2390: my $crstype = &Apache::loncommon::course_type();
2391: my $ccrole = 'cc';
2392: if ($crstype eq 'Community') {
2393: $ccrole = 'co';
2394: }
2395: push(@courseroles,$ccrole);
2396:
2397: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2398: @sections = ('all',$env{'request.course.sec'});
2399: $numvisible = 2;
2400: } else {
2401: @sections = sort {$a cmp $b} keys(%sectioncount);
2402: if (scalar(@sections) < 4) {
2403: $numvisible = scalar(@sections) + 1;
2404: }
2405: unshift(@sections,'all'); # Put 'all' at the front of the list
2406:
2407: }
2408: foreach my $sec (@sections) {
2409: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2410: }
2411:
2412: if (&check_group_priv() eq 'ok') {
2413: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2414: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2415: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2416: @groups = sort {$a cmp $b} keys(%curr_groups);
2417: if (scalar(@groups) < 4) {
2418: $numgroupvis = scalar(@groups) + 1;
2419: }
2420: unshift(@groups,'all'); # Put 'all' at the front of the list
2421: } else {
2422: my @coursegroups = split(/:/,$env{'request.course.groups'});
2423: if (@coursegroups > 0) {
2424: @coursegroups = sort {$a cmp $b} @coursegroups;
2425: @groups = ('all',@coursegroups);
2426: if (scalar(@groups) < 4) {
2427: $numgroupvis = scalar(@groups) + 1;
2428: }
2429: } else {
2430: @groups = ('all');
2431: $numgroupvis = 1;
2432: }
2433: }
2434: foreach my $group (@groups) {
2435: $group_sel .= " <option value=\"$group\">$group</option>\n";
2436: }
2437:
2438: my $function = &Apache::loncommon::get_users_function();
2439: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2440: $env{'user.domain'});
2441: my %lt = &Apache::lonlocal::texthash(
2442: 'diop' => 'Display Options',
2443: 'curr' => 'Current setting ',
2444: 'actn' => 'Action',
2445: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2446: 'soor' => 'Sort order',
2447: 'spur' => 'Specific user roles',
2448: 'sprs' => 'Specific role status',
2449: 'spse' => 'Specific sections',
2450: 'spgr' => 'Specific groups',
2451: 'psub' => 'Pick specific users (by name)',
2452: 'shal' => 'Show a list of current posters',
2453: 'stor' => 'Save changes',
2454: );
2455:
2456: my %sort_types = ();
2457: my %role_types = ();
2458: my %status_types = ();
2459: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2460:
2461: my $js = <<END;
2462: <script type="text/javascript">
2463: function verifyFilter() {
2464: var rolenum = 0
2465: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2466: if (document.modifyshown.rolefilter.options[i].selected == true) {
2467: rolenum ++
2468: }
2469: }
2470: if (rolenum == 0) {
2471: document.modifyshown.rolefilter.options[0].selected = true
2472: }
2473:
2474: var secnum = 0
2475: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2476: if (document.modifyshown.sectionpick.options[i].selected == true) {
2477: secnum ++
2478: }
2479: }
2480: if (secnum == 0) {
2481: document.modifyshown.sectionpick.options[0].selected = true
2482: }
2483:
2484: var grpnum = 0
2485: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2486: if (document.modifyshown.grouppick.options[i].selected == true) {
2487: grpnum ++
2488: }
2489: }
2490: if (grpnum == 0) {
2491: document.modifyshown.grouppick.options[0].selected = true
2492: }
2493:
2494: document.modifyshown.submit();
2495: }
2496: </script>
2497: END
2498:
2499: my $start_page=
2500: &Apache::loncommon::start_page('Discussion options',$js);
2501: my $end_page=
2502: &Apache::loncommon::end_page();
2503:
2504: $r->print(<<END);
2505: $start_page
2506: <form name="modifyshown" method="post" action="/adm/feedback">
2507: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2508: <br />
2509: <table border="0">
2510: <tr>
2511: <th>$lt{'soor'}</th>
2512: <th> </th>
2513: <th>$lt{'sprs'}</th>
2514: <th> </th>
2515: <th>$lt{'spur'}</th>
2516: <th> </th>
2517: <th>$lt{'spse'}</th>
2518: <th> </th>
2519: <th>$lt{'spgr'}</th>
2520: <th> </th>
2521: <th>$lt{'psub'}</th>
2522: </tr>
2523: <tr>
2524: <td align="center" valign="top">
2525: <select name="sortposts">
2526: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2527: <option value="descdate">$sort_types{'descdate'}</option>
2528: <option value="thread">$sort_types{'thread'}</option>
2529: <option value="subject">$sort_types{'subject'}</option>
2530: <option value="username">$sort_types{'username'}</option>
2531: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2532: </select>
2533: </td>
2534: <td> </td>
2535: <td align="center" valign="top">
2536: <select name="statusfilter">
2537: <option value="all" selected="selected">$status_types{'all'}</option>
2538: <option value="Active">$status_types{'Active'}</option>
2539: <option value="Expired">$status_types{'Expired'}</option>
2540: <option value="Future">$status_types{'Future'}</option>
2541: </select>
2542: </td>
2543: <td> </td>
2544: <td align="center" valign="top">
2545: <select name="rolefilter" multiple="multiple" size="5">
2546: <option value="all">$role_types{'all'}</option>
2547: <option value="st">$role_types{'st'}</option>
2548: <option value="$ccrole">$role_types{$ccrole}</option>
2549: <option value="in">$role_types{'in'}</option>
2550: <option value="ta">$role_types{'ta'}</option>
2551: <option value="ep">$role_types{'ep'}</option>
2552: <option value="ad">$role_types{'ad'}</option>
2553: <option value="cr">$role_types{'cr'}</option>
2554: </select>
2555: </td>
2556: <td> </td>
2557: <td align="center" valign="top">
2558: <select name="sectionpick" multiple="multiple" size="$numvisible">
2559: $section_sel
2560: </select>
2561: </td>
2562: <td> </td>
2563: <td align="center" valign="top">
2564: <select name="grouppick" multiple="multiple" size="$numvisible">
2565: $group_sel
2566: </select>
2567: </td>
2568: <td> </td>
2569: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2570: </tr>
2571: </table>
2572: <br />
2573: <input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
2574: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2575: <input type="hidden" name="previous" value="$previous" />
2576: <input type="hidden" name="applysort" value="$symb" />
2577: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2578: END
2579: if (exists($env{'form.group'})) {
2580: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2581: }
2582: if (exists($env{'form.ref'})) {
2583: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2584: }
2585: $r->print("
2586: <br />
2587: <br />
2588: </form>
2589: $end_page
2590: ");
2591: }
2592:
2593: sub print_showposters {
2594: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2595:
2596: &Apache::loncommon::content_type($r,'text/html');
2597: $r->send_http_header;
2598:
2599: &Apache::lonenc::check_encrypt(\$symb);
2600: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2601: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2602: my $group = $env{'form.group'};
2603: my $ressymb = &wrap_symb($symb);
2604: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
2605: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2606: $cdom,$cnum);
2607: my %namesort = ();
2608: my %postcounts = ();
2609:
2610: my %lt = &Apache::lonlocal::texthash(
2611: sele => 'Select',
2612: full => 'Fullname',
2613: usdo => 'Username:domain',
2614: post => 'Posts',
2615: );
2616: if ($contrib{'version'}) {
2617: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2618: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2619: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2620: unless ((($hidden) && (!$seehidden)) || ($deleted)) {
2621: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2622: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2623: my $lastname = $names{'lastname'};
2624: my $firstname = $names{'firstname'};
2625: if ($lastname eq '') {
2626: $lastname = '_';
2627: }
2628: if ($firstname eq '') {
2629: $firstname = '_';
2630: }
2631: unless (defined($namesort{$lastname})) {
2632: %{$namesort{$lastname}} = ();
2633: }
2634: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2635: $postcounts{$poster} ++;
2636: if (defined($namesort{$lastname}{$firstname})) {
2637: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2638: push(@{$namesort{$lastname}{$firstname}}, $poster);
2639: }
2640: } else {
2641: @{$namesort{$lastname}{$firstname}} = ("$poster");
2642: }
2643: }
2644: }
2645: }
2646: }
2647:
2648: my $start_page = &Apache::loncommon::start_page('Discussion options');
2649: my $table_start =&Apache::loncommon::start_data_table();
2650: $r->print(<<END);
2651: $start_page
2652: <form name="pickpostersform" method="post" action="">
2653: <br />
2654: $table_start
2655: <tr>
2656: <th>#</th>
2657: <th>$lt{'sele'}</th>
2658: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2659: <th>$lt{'post'}</th>
2660: </tr>
2661: END
2662: my $count = 0;
2663: foreach my $last (sort(keys(%namesort))) {
2664: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2665: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2666: my ($uname,$udom) = split(/:/,$user);
2667: if (!$uname || !$udom) {
2668: next;
2669: } else {
2670: $count ++;
2671: $r->print(&Apache::loncommon::start_data_table_row().
2672: '<td align="right">'.$count.'</td>
2673: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2674: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2675: <td>'.$postcounts{$user}.'</td>'.
2676: &Apache::loncommon::end_data_table_row());
2677: }
2678: }
2679: }
2680: }
2681: $r->print(&Apache::loncommon::end_data_table());
2682: my $end_page = &Apache::loncommon::end_page();
2683: $r->print(<<END);
2684: <br />
2685: <input type="hidden" name="sortposts" value="$sortposts" />
2686: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2687: <input type="hidden" name="userpick" value="$symb" />
2688: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2689: </form>
2690: $end_page
2691: END
2692: }
2693:
2694: sub get_post_versions {
2695: my ($versions,$incoming,$htmldecode,$numver) = @_;
2696: if ($incoming =~ /^<version num="0">/) {
2697: my $p = HTML::LCParser->new(\$incoming);
2698: my $done = 0;
2699:
2700: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2701: my $num = $token->[1]{num};
2702: my $text = $p->get_text("/version");
2703: if (defined($numver)) {
2704: if ($num == $numver) {
2705: if ($htmldecode) {
2706: $text = &HTML::Entities::decode($text);
2707: }
2708: $$versions{$numver}=$text;
2709: $done = 1;
2710: }
2711: } else {
2712: if ($htmldecode) {
2713: $text = &HTML::Entities::decode($text);
2714: }
2715: $$versions{$num}=$text;
2716: }
2717: }
2718: } else {
2719: if (!defined($numver)) {
2720: $numver = 0;
2721: }
2722: if ($htmldecode) {
2723: $$versions{$numver} = $incoming;
2724: } else {
2725: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2726: }
2727: }
2728: return;
2729: }
2730:
2731: sub get_post_attachments {
2732: my ($attachments,$attachmenturls) = @_;
2733: my $num;
2734: if ($attachmenturls =~ m/^<attachment id="0">/) {
2735: my $p = HTML::LCParser->new(\$attachmenturls);
2736: while (my $token = $p->get_tag("attachment","filename","post")) {
2737: if ($token->[0] eq "attachment") {
2738: $num = $token->[1]{id};
2739: %{$$attachments{$num}} =();
2740: } elsif ($token->[0] eq "filename") {
2741: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2742: } elsif ($token->[0] eq "post") {
2743: my $id = $token->[1]{id};
2744: $$attachments{$num}{$id} = $p->get_text("/post");
2745: }
2746: }
2747: } else {
2748: %{$$attachments{'0'}} = ();
2749: $$attachments{'0'}{'filename'} = $attachmenturls;
2750: $$attachments{'0'}{'0'} = 'n';
2751: }
2752: return;
2753: }
2754:
2755: sub fail_redirect {
2756: my ($r,$feedurl,$delay) = @_;
2757: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2758: my %lt = &Apache::lonlocal::texthash(
2759: 'sorr' => 'Sorry, no recipients ...',
2760: );
2761: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2762: my %parms=('only_body' => 1);
2763: if ($delay !~ /^\d+(|\.\d+)$/) {
2764: $delay = 2;
2765: }
2766: if ($env{'form.modal'}) {
2767: my $onload = 'document.forms.reldt.submit()';
2768: if ($delay) {
2769: my $js_delay = int(1000 * $delay);
2770: $onload = "setTimeout(function(){
2771: document.forms.reldt.submit();
2772: },$js_delay);";
2773: }
2774: $parms{'add_entries'}={'onload' => $onload};
2775: } else {
2776: $parms{'redirect'}=[$delay,$feedurl];
2777: }
2778: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,\%parms));
2779: my $windowname = 'loncapaclient';
2780: if ($env{'request.lti.login'}) {
2781: $windowname .= 'lti';
2782: }
2783: $r->print(<<ENDFAILREDIR);
2784: <img align="right" src="$logo" />
2785: <p class="LC_warning">$lt{'sorr'}</p>
2786: <form name="reldt" action="$feedurl" target="$windowname">
2787: </form>
2788: ENDFAILREDIR
2789: $r->print(&Apache::loncommon::end_page());
2790: }
2791:
2792: sub redirect_back {
2793: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,
2794: $rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge,$delay) = @_;
2795: my $sorttag = '';
2796: my $roletag = '';
2797: my $statustag = '';
2798: my $sectag = '';
2799: my $grptag = '';
2800: my $userpicktag = '';
2801: my $qrystr = '';
2802: my $prevtag = '';
2803:
2804: &Apache::loncommon::content_type($r,'text/html');
2805: $r->send_http_header;
2806: &dewrapper(\$feedurl);
2807: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2808: if ($previous > 0) {
2809: $qrystr = 'previous='.$previous;
2810: if ($feedurl =~ /\?register=1/) {
2811: $feedurl .= '&'.$qrystr;
2812: } else {
2813: $feedurl .= '?'.$qrystr;
2814: }
2815: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2816: }
2817: if (defined($sort)) {
2818: my $sortqry = 'sortposts='.$sort;
2819: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2820: $feedurl .= '&'.$sortqry;
2821: } else {
2822: $feedurl .= '?'.$sortqry;
2823: }
2824: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2825: if (defined($numpicks)) {
2826: my $userpickqry = 'totposters='.$numpicks;
2827: $feedurl .= '&'.$userpickqry;
2828: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2829: } else {
2830: if (ref($sectionpick) eq 'ARRAY') {
2831: $feedurl .= '&sectionpick=';
2832: $sectag .= '<input type="hidden" name="sectionpick" value="';
2833: foreach my $sec (@{$sectionpick}) {
2834: $feedurl .= $sec.',';
2835: $sectag .= $sec.',';
2836: }
2837: $feedurl =~ s/,$//;
2838: $sectag =~ s/,$//;
2839: $sectag .= '" />';
2840: } else {
2841: $feedurl .= '&sectionpick='.$sectionpick;
2842: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2843: }
2844: if (ref($grouppick) eq 'ARRAY') {
2845: $feedurl .= '&grouppick=';
2846: $sectag .= '<input type="hidden" name="grouppick" value="';
2847: foreach my $grp (@{$grouppick}) {
2848: $feedurl .= $grp.',';
2849: $grptag .= $grp.',';
2850: }
2851: $feedurl =~ s/,$//;
2852: $grptag =~ s/,$//;
2853: $grptag .= '" />';
2854: } else {
2855: $feedurl .= '&grouppick='.$grouppick;
2856: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2857: }
2858: if (ref($rolefilter) eq 'ARRAY') {
2859: $feedurl .= '&rolefilter=';
2860: $roletag .= '<input type="hidden" name="rolefilter" value="';
2861: foreach my $role (@{$rolefilter}) {
2862: $feedurl .= $role.',';
2863: $roletag .= $role.',';
2864: }
2865: $feedurl =~ s/,$//;
2866: $roletag =~ s/,$//;
2867: $roletag .= '" />';
2868: } else {
2869: $feedurl .= '&rolefilter='.$rolefilter;
2870: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2871: }
2872: $feedurl .= '&statusfilter='.$statusfilter;
2873: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2874: }
2875: }
2876: my $grouptag;
2877: if ($group ne '') {
2878: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2879: my $refarg;
2880: if (exists($env{'form.ref'})) {
2881: $refarg = '&ref='.$env{'form.ref'};
2882: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2883: }
2884: if ($feedurl =~ /\?/) {
2885: $feedurl .= '&group='.$group.$refarg;
2886: } else {
2887: $feedurl .= '?group='.$group.$refarg;
2888: }
2889: }
2890: &Apache::lonenc::check_encrypt(\$feedurl);
2891: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2892: my %parms=('only_body' => 1);
2893: if ($delay !~ /^\d+(|\.\d+)$/) {
2894: $delay = 0;
2895: }
2896: if ($env{'form.modal'}) {
2897: my $onload = 'document.forms.reldt.submit()';
2898: if ($delay) {
2899: my $js_delay = int(1000 * $delay);
2900: $onload = "setTimeout(function(){
2901: document.forms.reldt.submit();
2902: },$js_delay);";
2903: }
2904: $parms{'add_entries'}={'onload' => $onload};
2905: } else {
2906: $parms{'redirect'}=[$delay,$feedurl];
2907: }
2908: my $start_page=
2909: &Apache::loncommon::start_page('Feedback sent',undef,\%parms);
2910: my $end_page = &Apache::loncommon::end_page();
2911: my $windowname = 'loncapaclient';
2912: if ($env{'request.lti.login'}) {
2913: $windowname .= 'lti';
2914: }
2915: $r->print(<<ENDREDIR);
2916: $start_page
2917: <img align="right" src="$logo" />
2918: $typestyle
2919: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2920: $blog
2921: $toolarge
2922: <font color="red">$status</font>
2923: <form name="reldt" action="$feedurl" target="$windowname">
2924: $prevtag
2925: $sorttag
2926: $statustag
2927: $roletag
2928: $sectag
2929: $grptag
2930: $userpicktag
2931: $grouptag
2932: </form>
2933: $end_page
2934: ENDREDIR
2935: }
2936:
2937: sub no_redirect_back {
2938: my ($r,$feedurl,$delay) = @_;
2939: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2940: my $form_for_modal;
2941: my %parms=('only_body' => 1,
2942: 'bgcolor' => '#FFFFFF',);
2943: if ($delay !~ /^\d+(|\.\d+)$/) {
2944: $delay = 0;
2945: }
2946: if ($env{'form.modal'}) {
2947: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2948: my $onload = 'document.forms.reldt.submit()';
2949: if ($delay) {
2950: my $js_delay = int(1000 * $delay);
2951: $onload = "setTimeout(function(){
2952: document.forms.reldt.submit();
2953: },$js_delay);";
2954: }
2955: $parms{'add_entries'}={'onload' => $onload};
2956: my $windowname = 'loncapaclient';
2957: if ($env{'request.lti.login'}) {
2958: $windowname .= 'lti';
2959: }
2960: $form_for_modal = <<ENDFORM;
2961: <form name="reldt" action="$feedurl" target="$windowname">
2962: </form>
2963: ENDFORM
2964: }
2965: } else {
2966: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2967: $parms{'redirect'}=[$delay,$feedurl];
2968: }
2969: }
2970:
2971: my $start_page=
2972: &Apache::loncommon::start_page('Feedback not sent',undef,
2973: \%parms);
2974:
2975: my $end_page = &Apache::loncommon::end_page();
2976:
2977: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2978: $r->print (<<ENDNOREDIRTWO);
2979: $start_page
2980: <img align="right" src="$logo" />
2981: <b>$nofeed</b>
2982: <br />
2983: $form_for_modal
2984: $end_page
2985: ENDNOREDIRTWO
2986: }
2987:
2988: sub screen_header {
2989: my ($feedurl,$symb,$group) = @_;
2990: my %default = &Apache::lonlocal::texthash (
2991: question => 'Question about resource content',
2992: comment => 'Question/Comment/Feedback about course content',
2993: policy => 'Question/Comment/Feedback about course policy',
2994: );
2995: my $contribdisc = &mt('Contribution to course discussion of resource');
2996: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2997: my $namevis = &mt('name only visible to course faculty');
2998: my $crstype;
2999: if ($env{'request.course.id'}) {
3000: $crstype = &Apache::loncommon::course_type();
3001: if ($crstype eq 'Community') {
3002: $default{'comment'} = &mt('Question/Comment/Feedback about community content');
3003: $default{'policy'} = &mt('Question/Comment/Feedback about community policy');
3004: $contribdisc = &mt('Contribution to community discussion of resource');
3005: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
3006: $namevis = &mt('name only visible to community facilitators');
3007: }
3008: }
3009: my $msgoptions='';
3010: my $discussoptions='';
3011: my $checkradio = '';
3012: my $blockblog;
3013: my (%fdbkoptions,%discoptions);
3014: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
3015: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
3016: $fdbkoptions{'author'} = 1;
3017: }
3018: if (&feedback_available(1)) {
3019: $fdbkoptions{'question'} = 1;
3020: }
3021: if (&feedback_available(0,1)) {
3022: $fdbkoptions{'course'} = 1;
3023: }
3024: if (&feedback_available(0,0,1)) {
3025: $fdbkoptions{'policy'} = 1;
3026: }
3027: }
3028: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
3029: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
3030: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3031: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3032: my $realsymb = &get_realsymb($symb);
3033: if (!$blocked && &discussion_open(undef,$realsymb) &&
3034: (&Apache::lonnet::allowed('pch',
3035: $env{'request.course.id'}.
3036: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3037: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
3038: $discoptions{'nonanon'} = 1;
3039: if (&Apache::lonnet::allowed('pac',$env{'request.course.id'}.
3040: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
3041: $discoptions{'anon'} = 1;
3042: }
3043: $blockblog = &Apache::loncommon::blocking_status('blogs');
3044: }
3045: }
3046: my $total = scalar(keys(%fdbkoptions)) + scalar(keys(%discoptions));
3047: return if (!$total);
3048: if ($total == 1) {
3049: $checkradio = ' checked="checked"';
3050: }
3051: if (keys(%fdbkoptions)) {
3052: if ($fdbkoptions{'author'}) {
3053: $msgoptions =
3054: '<label><input type="radio" name="discuss" value="author"'.$checkradio.' /> '.
3055: &mt('Feedback to resource author').'</label><br />';
3056: }
3057: foreach my $item ('question','comment','policy') {
3058: my $type = $item;
3059: if ($item eq 'comment') {
3060: $type = 'course';
3061: }
3062: my $optionhash=$env{'course.'.$env{'request.course.id'}.'.'.$item.'.email.text'};
3063: if ($fdbkoptions{$type}) {
3064: $msgoptions .=
3065: '<label><input type="radio" name="discuss" value="'.$type.'"'.$checkradio.' />'.
3066: ($optionhash?$optionhash:$default{$item}).'</label><br />';
3067: }
3068: }
3069: }
3070: if (keys(%discoptions)) {
3071: if ($discoptions{'nonanon'}) {
3072: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
3073: $contribdisc.
3074: '</label>';
3075: }
3076: if ($discoptions{'anon'}) {
3077: $discussoptions .= '<br /><label><input type="radio" name="discuss" value="anon"'.$checkradio.' /> '.
3078: $anoncontrib.
3079: ' <i>('.$namevis.')</i></label> '.
3080: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
3081: }
3082: if (!$blockblog) {
3083: $discussoptions.= &add_blog_checkbox($crstype);
3084: }
3085: }
3086: if ($msgoptions) {
3087: $msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
3088: .'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
3089: '<td>'.$msgoptions.'</td></tr>';
3090: }
3091: if ($discussoptions) {
3092: $discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
3093: .'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
3094: '<td>'.$discussoptions.'</td></tr>';
3095: }
3096: return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
3097: }
3098:
3099: sub resource_output {
3100: my ($feedurl) = @_;
3101: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
3102: $usersaw=~s/\<body[^\>]*\>//gi;
3103: $usersaw=~s/\<\/body\>//gi;
3104: $usersaw=~s/\<html\>//gi;
3105: $usersaw=~s/\<\/html\>//gi;
3106: $usersaw=~s/\<head\>//gi;
3107: $usersaw=~s/\<\/head\>//gi;
3108: $usersaw=~s/action\s*\=/would_be_action\=/gi;
3109: return $usersaw;
3110: }
3111:
3112: sub clear_out_html {
3113: my ($message,$override)=@_;
3114: # Always allow the <m>-tag
3115: my %html=(M=>1);
3116: # Check if more is allowed
3117: my $cid=$env{'request.course.id'};
3118: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
3119: ($override)) {
3120: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
3121: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
3122: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
3123: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
3124: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
3125: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
3126: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
3127: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
3128: }
3129: # Do the substitution of everything that is not explicitly allowed
3130: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
3131: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
3132: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
3133: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
3134: return $message;
3135: }
3136:
3137: sub assemble_email {
3138: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
3139: my %lt = &Apache::lonlocal::texthash(
3140: 'prev' => 'Previous attempts of student (if applicable)',
3141: 'orig' => 'Original screen output (if applicable)',
3142: 'corr' => 'Correct Answer(s) (if applicable)',
3143: );
3144: if (&Apache::loncommon::course_type() eq 'Community') {
3145: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
3146: }
3147: my $email=<<"ENDEMAIL";
3148: $message
3149: ENDEMAIL
3150: my $citations=<<"ENDCITE";
3151: <h2>$lt{'prev'}</h2>
3152: $prevattempts
3153: <br /><hr />
3154: <h2>$lt{'orig'}</h2>
3155: $usersaw
3156: <h2>$lt{'corr'}</h2>
3157: $useranswer
3158: ENDCITE
3159: return ($email,$citations);
3160: }
3161:
3162:
3163: sub feedback_available {
3164: my ($question,$course,$policy)=@_;
3165: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
3166: $course,$policy);
3167: return scalar(%to);
3168: }
3169:
3170: sub send_msg {
3171: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,$clientip,%to)=@_;
3172: my $status='';
3173: my $sendsomething=0;
3174: my $delay;
3175: my $senthide;
3176: my %setters;
3177: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
3178: &Apache::loncommon::blockcheck(\%setters,'com',$clientip);
3179: if ($by_ip) {
3180: $senthide = 1;
3181: }
3182: my $restitle = &get_resource_title($symb,$feedurl);
3183: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
3184: unless ($title=~/\w/) { $title=&mt('Feedback'); }
3185: foreach my $key (keys(%to)) {
3186: if ($key) {
3187: my ($user,$domain) = split(/\:/,$key,2);
3188: if (!defined($user)) {
3189: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
3190: } elsif (!defined($domain)) {
3191: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
3192: } else {
3193: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
3194: $title.' ['.$restitle.']',$email,$citations,$feedurl,
3195: $attachmenturl,undef,undef,$symb,$restitle,undef,
3196: undef,undef,undef,$senthide)=~/ok/) {
3197: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
3198: } else {
3199: $sendsomething++;
3200: }
3201: }
3202: }
3203: }
3204: if ($sendsomething && $senthide) {
3205: if ($by_ip) {
3206: my $showdom = &Apache::lonnet::domain($blockdom);
3207: if ($showdom eq '') {
3208: $showdom = $blockdom;
3209: }
3210: $delay = 4;
3211: $status.='<br />'.&mt("Message content of feedback you send to instructor(s) from your current IP address: [_1] will be unavailable in your 'Sent' folder.",$clientip).
3212: '<ul><li>'.
3213: &mt('This does not affect delivery of feedback to your instructor(s).').
3214: '</li><li>'.
3215: &mt('Note: some types of communication functionality are blocked for certain IP address(es).').
3216: '</li><li>'.
3217: &mt('This restriction was set by an administrator in the [_1] LON-CAPA domain.',
3218: $showdom).
3219: '</li></ul><br />';
3220: }
3221: }
3222:
3223: # Records of number of feedback messages are kept under the "symb" called "_feedback"
3224: # There are two entries within the framework of a course:
3225: # - the URLs for which feedback was provided
3226: # - the total number of contributions
3227: if ($sendsomething) {
3228: my %record=&getfeedbackrecords();
3229: my ($temp)=keys(%record);
3230: unless ($temp=~/^error\:/) {
3231: my %newrecord=();
3232: $newrecord{'resource'}=$feedurl;
3233: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3234: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
3235: $status.='<br />'.&mt('Not registered').'<br />';
3236: }
3237: }
3238: }
3239: return ($status,$sendsomething,$delay);
3240: }
3241:
3242: # Routine to get the complete feedback records
3243:
3244: sub getfeedbackrecords {
3245: my ($uname,$udom,$course)=@_;
3246: unless ($uname) { $uname=$env{'user.name'}; }
3247: unless ($udom) { $udom=$env{'user.domain'}; }
3248: unless ($course) { $course=$env{'request.course.id'}; }
3249: my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
3250: return %record;
3251: }
3252:
3253: # Routine to get feedback statistics
3254:
3255: sub getfeedbackstats {
3256: my %record=&getfeedbackrecords(@_);
3257: return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
3258: }
3259:
3260: # Store feedback credit
3261:
3262: sub storefeedbackpoints {
3263: my ($points,$uname,$udom,$course)=@_;
3264: unless ($points) { $points=0; }
3265: unless ($uname) { $uname=$env{'user.name'}; }
3266: unless ($udom) { $udom=$env{'user.domain'}; }
3267: unless ($course) { $course=$env{'request.course.id'}; }
3268: my %record=('grader_user' => $env{'user.name'},
3269: 'grader_domain' => $env{'user.domain'},
3270: 'points' => $points);
3271: return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
3272: }
3273:
3274: # Store feedback "likes"
3275:
3276: sub storefeedbacklikes {
3277: my ($likes,$uname,$udom,$course)=@_;
3278: unless ($likes) { $likes=0; }
3279: if ($likes>0) { $likes=1; }
3280: if ($likes<0) { $likes=-1; }
3281: unless ($uname) { $uname=$env{'user.name'}; }
3282: unless ($udom) { $udom=$env{'user.domain'}; }
3283: unless ($course) { $course=$env{'request.course.id'}; }
3284: my %record=&getfeedbackrecords($uname,$udom,$course);
3285: my $totallikes=$record{'totallikes'};
3286: $totallikes+=$likes;
3287: my %newrecord=('likes_user' => $env{'user.name'},
3288: 'likes_domain' => $env{'user.domain'},
3289: 'likes' => $likes,
3290: 'totallikes' => $totallikes);
3291: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3292: }
3293:
3294:
3295: sub adddiscuss {
3296: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3297: my $status='';
3298: my $realsymb = &get_realsymb($symb);
3299: my ($cnum,$cdom);
3300: if ($env{'request.course.id'}) {
3301: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3302: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3303: }
3304: if (&discussion_open(undef,$realsymb) &&
3305: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3306: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3307: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3308: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3309:
3310: my %contrib=('message' => $email,
3311: 'sendername' => $env{'user.name'},
3312: 'senderdomain' => $env{'user.domain'},
3313: 'screenname' => $env{'environment.screenname'},
3314: 'plainname' => $env{'environment.firstname'}.' '.
3315: $env{'environment.middlename'}.' '.
3316: $env{'environment.lastname'}.' '.
3317: $env{'enrironment.generation'},
3318: 'attachmenturl'=> $attachmenturl,
3319: 'subject' => $subject);
3320: if ($env{'form.replydisc'}) {
3321: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3322: }
3323: if ($anon) {
3324: $contrib{'anonymous'}='true';
3325: }
3326: if (($symb) && ($email)) {
3327: my $now = time;
3328: if ($env{'form.editdisc'}) {
3329: $contrib{'ip'}=&Apache::lonnet::get_requestor_ip();
3330: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3331: $contrib{'timestamp'} = $now;
3332: $contrib{'history'} = '';
3333: my $numoldver = 0;
3334: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3335: &Apache::lonenc::check_decrypt(\$oldsymb);
3336: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3337: # get timestamp for last post and history
3338: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3339: $env{'course.'.$env{'request.course.id'}.'.domain'},
3340: $env{'course.'.$env{'request.course.id'}.'.num'});
3341: if (defined($oldcontrib{$oldidx.':replyto'})) {
3342: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3343: }
3344: if (defined($oldcontrib{$oldidx.':history'})) {
3345: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3346: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3347: $numoldver = @oldversions;
3348: } else {
3349: $numoldver = 1;
3350: }
3351: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3352: }
3353: my $numnewver = $numoldver + 1;
3354: if (defined($oldcontrib{$oldidx.':subject'})) {
3355: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3356: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3357: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3358: } else {
3359: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3360: }
3361: }
3362: if (defined($oldcontrib{$oldidx.':message'})) {
3363: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3364: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3365: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3366: } else {
3367: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3368: }
3369: }
3370: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3371: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3372: $oldsymb,$oldidx,\%contrib,
3373: $env{'course.'.$env{'request.course.id'}.'.domain'},
3374: $env{'course.'.$env{'request.course.id'}.'.num'});
3375: $status='Editing class discussion'.($anon?' (anonymous)':'');
3376: } else {
3377: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3378: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3379: $env{'course.'.$env{'request.course.id'}.'.domain'},
3380: $env{'course.'.$env{'request.course.id'}.'.num'});
3381: }
3382: my %storenewentry=($symb => $now);
3383: $status.='<br />'.&mt('Updating discussion time').': '.
3384: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3385: $env{'course.'.$env{'request.course.id'}.'.domain'},
3386: $env{'course.'.$env{'request.course.id'}.'.num'});
3387: }
3388: my %record=&getdiscussionrecords();
3389: my ($temp)=keys(%record);
3390: unless ($temp=~/^error\:/) {
3391: my %newrecord=();
3392: $newrecord{'resource'}=$symb;
3393: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3394: $status.='<br />'.&mt('Registering').': '.
3395: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3396: &updatekarma();
3397: }
3398: } else {
3399: $status.='Failed.';
3400: }
3401: return $status.'<br />';
3402: }
3403:
3404:
3405: # Routine to get the complete discussion records
3406:
3407: sub getdiscussionrecords {
3408: my ($uname,$udom,$course)=@_;
3409: unless ($uname) { $uname=$env{'user.name'}; }
3410: unless ($udom) { $udom=$env{'user.domain'}; }
3411: unless ($course) { $course=$env{'request.course.id'}; }
3412: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3413: return %record;
3414: }
3415:
3416: # Routine to get discussion statistics
3417:
3418: sub getdiscussionstats {
3419: my %record=&getdiscussionrecords(@_);
3420: my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'};
3421: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes);
3422: }
3423:
3424: # Calculate discussion karma
3425:
3426: sub calcdiscussionkarma {
3427: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3428: my $karma=0;
3429: if ($votes>0) {
3430: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3431: if ($karma<0) { $karma=0; }
3432: if ($karma>5) { $karma=5; }
3433: }
3434: return $karma;
3435: }
3436:
3437: # Update karma
3438:
3439: sub updatekarma {
3440: my ($uname,$udom,$course)=@_;
3441: unless ($uname) { $uname=$env{'user.name'}; }
3442: unless ($udom) { $udom=$env{'user.domain'}; }
3443: unless ($course) { $course=$env{'request.course.id'}; }
3444: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3445: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3446: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3447: return $karma;
3448: }
3449:
3450: # Retrieve karma
3451:
3452: sub userkarma {
3453: my ($uname,$udom,$course)=@_;
3454: unless ($uname) { $uname=$env{'user.name'}; }
3455: unless ($udom) { $udom=$env{'user.domain'}; }
3456: unless ($course) { $course=$env{'request.course.id'}; }
3457: my $hashkey=$uname.':'.$udom.':'.$course;
3458: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3459: if ($cached) {
3460: return $karma;
3461: }
3462: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3463: $karma=$userdisc{'karma'};
3464: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3465: return $karma;
3466: }
3467:
3468: # Store discussion credit
3469:
3470: sub storediscussionpoints {
3471: my ($points,$uname,$udom,$course)=@_;
3472: unless ($points) { $points=0; }
3473: unless ($uname) { $uname=$env{'user.name'}; }
3474: unless ($udom) { $udom=$env{'user.domain'}; }
3475: unless ($course) { $course=$env{'request.course.id'}; }
3476: my %record=('grader_user' => $env{'user.name'},
3477: 'grader_domain' => $env{'user.domain'},
3478: 'points' => $points);
3479: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3480: }
3481:
3482: # Store discussion "likes"
3483:
3484: sub storediscussionlikes {
3485: my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_;
3486: unless ($uname) { $uname=$env{'user.name'}; }
3487: unless ($udom) { $udom=$env{'user.domain'}; }
3488: unless ($course) { $course=$env{'request.course.id'}; }
3489: my %record=&getdiscussionrecords($uname,$udom,$course);
3490: my $totallikes=$record{'totallikes'};
3491: my $totalunlikes=$record{'totalunlikes'};
3492: $totallikes += $chglikes;
3493: $totalunlikes += $chgunlikes;
3494: my %newrecord=('likes_user' => $env{'user.name'},
3495: 'likes_domain' => $env{'user.domain'},
3496: 'totallikes' => $totallikes,
3497: 'totalunlikes' => $totalunlikes,
3498: 'context' => $context);
3499: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3500: if ($status eq 'ok') {
3501: &updatekarma($uname,$udom,$course);
3502: }
3503: return $status;
3504: }
3505:
3506: sub get_discussion_info {
3507: my ($idx,%contrib) = @_;
3508: my $changelast = 0;
3509: my $count = 0;
3510: my $hiddenflag = 0;
3511: my $deletedflag = 0;
3512: my ($hidden,$deleted,%info,$newlastdisc);
3513: my $version = $contrib{'version'};
3514: if ($version) {
3515: for (my $id=$version; $id>0; $id--) {
3516: my $vkeys=$contrib{$id.':keys'};
3517: my @keys=split(/:/,$vkeys);
3518: if (grep(/^hidden$/,@keys)) {
3519: if (!$hiddenflag) {
3520: $hidden = $contrib{$id.':hidden'};
3521: $hiddenflag = 1;
3522: }
3523: } elsif (grep(/^deleted$/,@keys)) {
3524: if (!$deletedflag) {
3525: $deleted = $contrib{$id.':deleted'};
3526: $deletedflag = 1;
3527: }
3528: } else {
3529: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3530: $count++;
3531: $info{$count}{'id'} = $id;
3532: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3533: }
3534: }
3535: }
3536: if ($info{'1'}{'id'} == $idx) {
3537: $changelast = 1;
3538: if ($count > 1) {
3539: $newlastdisc = $info{'2'}{'timestamp'};
3540: } else {
3541: $newlastdisc = 0;
3542: }
3543: }
3544: }
3545: return ($changelast,$newlastdisc);
3546: }
3547:
3548: # ----------------------------------------------------------- Preview function
3549:
3550: sub show_preview {
3551: my ($r) = @_;
3552: &Apache::loncommon::content_type($r,'text/html');
3553: $r->send_http_header;
3554: my $start_page=
3555: &Apache::loncommon::start_page('Preview',undef,
3556: {'only_body' => 1,});
3557:
3558: my $message=&clear_out_html($env{'form.comment'});
3559: &newline_to_br(\$message);
3560: $message=&Apache::lonspeller::markeduptext($message);
3561: $message=&Apache::lontexconvert::msgtexconverted($message);
3562: my $subject=&clear_out_html($env{'form.subject'});
3563: $subject=~s/\n/\<br \/\>/g;
3564: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3565:
3566: my $end_page = &Apache::loncommon::end_page();
3567:
3568: $r->print($start_page
3569: .'<h1>'.&mt('Preview').'</h1>'
3570: .&Apache::lonhtmlcommon::start_pick_box()
3571: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3572: .$subject
3573: .&Apache::lonhtmlcommon::row_closure()
3574: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3575: .$message
3576: .&Apache::lonhtmlcommon::row_closure(1)
3577: .&Apache::lonhtmlcommon::end_pick_box()
3578: .$end_page
3579: );
3580: }
3581:
3582: sub contains_block_html {
3583: my ($message)=@_;
3584: return ($message =~ m{
3585: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3586: \s*
3587: (\w+\=['"]\w+['"])*
3588: \s*
3589: (
3590: \s*/>|
3591: >.*</\1\s*>
3592: )}xs
3593: );
3594: }
3595:
3596: sub tidy_html {
3597: my ($message)=@_;
3598: # my $tidy = HTML::Tidy::libXML->new();
3599: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3600: # $xhtml =~ m/<body>(.*)<\/body>/is;
3601: # my $clean = $1;
3602: # # remove any empty block-level tags
3603: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3604: # $message=$clean;
3605: return $message;
3606: }
3607:
3608: sub newline_to_br {
3609: my ($message)=@_;
3610: my $newmessage;
3611: my $parser=HTML::LCParser->new($message);
3612: while (my $token=$parser->get_token()) {
3613: if ($token->[0] eq 'T') {
3614: my $text=$token->[1];
3615: $text=~s/\n/\<br \/\>/g;
3616: $newmessage.=$text;
3617: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3618: $newmessage.=$token->[1];
3619: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3620: $newmessage.=$token->[2];
3621: } elsif ($token->[0] eq 'S') {
3622: $newmessage.=$token->[4];
3623: }
3624:
3625: }
3626: $$message=$newmessage;
3627: }
3628:
3629: sub generate_preview_button {
3630: my ($formname,$fieldname)=@_;
3631: unless ($formname) { $formname='mailform'; }
3632: unless ($fieldname) { $fieldname='comment'; }
3633: my $pre=&mt("Show Preview and Check Spelling");
3634: return(<<ENDPREVIEW);
3635: <br />
3636: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3637: <input type="hidden" name="subject" />
3638: <input type="hidden" name="comment" />
3639: <input type="button" value="$pre"
3640: 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();" />
3641: </form>
3642: ENDPREVIEW
3643: }
3644:
3645: sub modify_attachments {
3646: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3647: $attachmaxtext,$toolarge)=@_;
3648:
3649: my %lt = &Apache::lonlocal::texthash(
3650: 'subj' => 'Subject',
3651: 'chth' => 'Check the checkboxes for any you wish to remove.',
3652: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3653: 'adda' => 'Add a new attachment to this post',
3654: 'stch' => 'Save Changes',
3655: 'clic' => 'Add/remove attachments',
3656: );
3657: my $js = <<END;
3658: <script type="text/javascript">
3659: function setAction () {
3660: document.modattachments.action = document.modattachments.origpage.value;
3661: document.modattachments.submit();
3662: }
3663: </script>
3664: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
3665: END
3666:
3667: # Breadcrumbs
3668: my $brcrum = [{'href' => '',
3669: 'text' => 'Discussion Post Attachments'}];
3670: my %parms=('only_body' => 1);
3671: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
3672:
3673: my $start_page =
3674: &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
3675:
3676: my $orig_subject = &unescape($env{'form.subject'});
3677: my $subject=&clear_out_html($orig_subject);
3678: $subject=~s/\n/\<br \/\>/g;
3679: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3680: my $timestamp=$env{'form.timestamp'};
3681: my $numoldver=$env{'form.numoldver'};
3682:
3683: my $msg = '';
3684: my %attachments = ();
3685: my %currattach = ();
3686: if ($idx) {
3687: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3688: }
3689: &Apache::lonenc::check_encrypt(\$symb);
3690:
3691: my $end_page =
3692: &Apache::loncommon::end_page();
3693:
3694: $r->print(<<END);
3695: $start_page
3696: $toolarge
3697: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3698:
3699: <h1>$lt{'clic'}</h1>
3700: END
3701: $r->print(&Apache::lonhtmlcommon::start_pick_box());
3702: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
3703: $r->print('<b>'.$subject.'</b>');
3704: $r->print(&Apache::lonhtmlcommon::row_closure());
3705: $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
3706: $r->print('<input type="file" name="addnewattach" class="LC_flUpload" />'
3707: .'<input type="hidden" id="LC_free_space" value="131072" />'
3708: .'<input type="button" name="upload" value="Upload" '
3709: .'onclick="this.form.submit()" /> '.$attachmaxtext);
3710: if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
3711: $r->print(&Apache::lonhtmlcommon::row_closure());
3712: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
3713: if ($idx) {
3714: if ($attachmenturls) {
3715: my @currold = keys(%currattach);
3716: if (@currold > 0) {
3717: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3718: foreach my $id (@currold) {
3719: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3720: $attachurl =~ m#/([^/]+)$#;
3721: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3722: }
3723: $r->print("<br />");
3724: }
3725: }
3726: }
3727: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3728: $r->print($lt{'chth'}.'<br />'."\n");
3729: foreach my $attach (@{$currnewattach}) {
3730: $attach =~ m#/([^/]+)$#;
3731: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3732: }
3733: }
3734: }
3735: $r->print(&Apache::lonhtmlcommon::row_closure(1));
3736: $r->print(&Apache::lonhtmlcommon::end_pick_box());
3737: $r->print(<<END);
3738: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3739: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3740: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3741: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3742: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3743: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3744: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3745: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3746: END
3747: foreach my $item (@{$currnewattach}) {
3748: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3749: }
3750: foreach my $item (@{$currdelold}) {
3751: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3752: }
3753: $r->print(<<END);
3754: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3755: </form>
3756: $end_page
3757: END
3758: return;
3759: }
3760:
3761: sub process_attachments {
3762: my ($currnewattach,$currdelold,$keepold) = @_;
3763:
3764: @{$currnewattach}=
3765: &Apache::loncommon::get_env_multiple('form.currnewattach');
3766: @{$currdelold}=
3767: &Apache::loncommon::get_env_multiple('form.deloldattach');
3768: if (exists($env{'form.delnewattach'})) {
3769: my @currdelnew =
3770: &Apache::loncommon::get_env_multiple('form.delnewattach');
3771: my @currnew = ();
3772: foreach my $newone (@{$currnewattach}) {
3773: my $delflag = 0;
3774: foreach my $item (@currdelnew) {
3775: if ($newone eq $item) {
3776: $delflag = 1;
3777: last;
3778: }
3779: }
3780: unless ($delflag) {
3781: push(@currnew, $newone);
3782: }
3783: }
3784: @{$currnewattach} = @currnew;
3785: }
3786: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3787: }
3788:
3789: sub generate_attachments_button {
3790: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3791: $numoldver,$mode,$blockblog) = @_;
3792: my $origpage = $ENV{'REQUEST_URI'};
3793: my $att=$attachnum.' '.&mt("attachments");
3794: my %lt = &Apache::lonlocal::texthash(
3795: 'clic' => 'Add/remove attachments',
3796: );
3797: my $response = (<<END);
3798: <br />
3799: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3800: <input type="button" value="$lt{'clic'}"
3801: 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);
3802: END
3803: if (!$blockblog) {
3804: $response .= 'setblogvalue();';
3805: }
3806: unless ($mode eq 'board') {
3807: $response .= 'javascript:anonchk();';
3808: }
3809: $response .= (<<ENDATTACH);
3810: this.form.submit();" />
3811: <input type="hidden" name="origpage" value="$origpage" />
3812: <input type="hidden" name="idx" value="$idx" />
3813: <input type="hidden" name="timestamp" value="$now" />
3814: <input type="hidden" name="subject" />
3815: <input type="hidden" name="comment" />
3816: <input type="hidden" name="blog" value="0" />
3817: <input type="hidden" name="discuss" value="0" />
3818: <input type="hidden" name="numoldver" value="$numoldver" />
3819: ENDATTACH
3820: if (defined($deloldattach)) {
3821: if (@{$deloldattach} > 0) {
3822: foreach my $delatt (@{$deloldattach}) {
3823: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3824: }
3825: }
3826: }
3827: if (defined($currnewattach)) {
3828: if (@{$currnewattach} > 0) {
3829: foreach my $attach (@{$currnewattach}) {
3830: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3831: }
3832: }
3833: }
3834: $response .= '</form>';
3835: return $response;
3836: }
3837:
3838: sub extract_attachments {
3839: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3840: %{$attachments}=();
3841: &get_post_attachments($attachments,$attachmenturls);
3842: foreach my $id (sort(keys(%{$attachments}))) {
3843: if (exists($$attachments{$id}{$numoldver})) {
3844: if (defined($currdelold)) {
3845: if (@{$currdelold} > 0) {
3846: unless (grep/^$id$/,@{$currdelold}) {
3847: $$currattach{$id} = $$attachments{$id}{$numoldver};
3848: }
3849: } else {
3850: $$currattach{$id} = $$attachments{$id}{$numoldver};
3851: }
3852: } else {
3853: $$currattach{$id} = $$attachments{$id}{$numoldver};
3854: }
3855: }
3856: }
3857: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3858: if (@attached == 1) {
3859: my $id = $attached[0];
3860: my $attachurl;
3861: if ($attachmenturls =~ m/^<attachment id="0">/) {
3862: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3863: } else {
3864: $attachurl = $$attachments{$id}{'filename'};
3865: }
3866: $attachurl=~m|/([^/]+)$|;
3867: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3868: $1.'</tt></a><br />';
3869: &Apache::lonnet::allowuploaded('/adm/feedback',
3870: $attachurl);
3871: } elsif (@attached > 1) {
3872: $$message.='<ol>';
3873: foreach my $attach (@attached) {
3874: my $id = $attach;
3875: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3876: my ($fname)
3877: =($attachurl=~m|/([^/]+)$|);
3878: $$message .= '<li><a href="'.$attachurl.
3879: '"><tt>'.
3880: $fname.'</tt></a></li>';
3881: &Apache::lonnet::allowuploaded('/adm/feedback',
3882: $attachurl);
3883: }
3884: $$message .= '</ol>';
3885: }
3886: }
3887:
3888: sub construct_attachmenturl {
3889: my ($currnewattach,$keepold,$symb,$idx)=@_;
3890: my $oldattachmenturl;
3891: my $newattachmenturl;
3892: my $startnum = 0;
3893: my $currver = 0;
3894: if (($env{'form.editdisc'}) && ($idx)) {
3895: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3896: $env{'course.'.$env{'request.course.id'}.'.domain'},
3897: $env{'course.'.$env{'request.course.id'}.'.num'});
3898: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3899: if ($contrib{$idx.':history'}) {
3900: if ($contrib{$idx.':history'} =~ /:/) {
3901: my @oldversions = split(/:/,$contrib{$idx.':history'});
3902: $currver = 1 + scalar(@oldversions);
3903: } else {
3904: $currver = 2;
3905: }
3906: } else {
3907: $currver = 1;
3908: }
3909: if ($oldattachmenturl) {
3910: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3911: my %attachments = ();
3912: my $prevver = $currver-1;
3913: &get_post_attachments(\%attachments,$oldattachmenturl);
3914: my $numattach = scalar(keys(%attachments));
3915: $startnum += $numattach;
3916: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3917: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3918: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3919: unless ($item eq 'filename') {
3920: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3921: }
3922: }
3923: if (grep/^$num$/,@{$keepold}) {
3924: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3925: }
3926: $newattachmenturl .= '</attachment>';
3927: }
3928: } else {
3929: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3930: unless (grep/^0$/,@{$keepold}) {
3931: $newattachmenturl .= '<post id="1">n</post>';
3932: }
3933: $newattachmenturl .= '</attachment>';
3934: $startnum ++;
3935: }
3936: }
3937: }
3938: for (my $i=0; $i<@{$currnewattach}; $i++) {
3939: my $attachnum = $startnum + $i;
3940: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3941: }
3942: return $newattachmenturl;
3943: }
3944:
3945: sub add_blog_checkbox {
3946: my ($crstype) = @_;
3947: my $checkstatus;
3948: if ($env{'form.blog'}) {
3949: $checkstatus = 'checked="checked"';
3950: }
3951: my $output = '
3952: <script type="text/javascript">
3953: function setblogvalue() {
3954: if (document.mailform.blog.checked) {
3955: document.attachment.blog.value = 1;
3956: } else {
3957: document.attachment.blog.value = 0;
3958: }
3959: }
3960: </script><br />
3961: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3962: if ($crstype eq 'Community') {
3963: $output .= &mt('Add to my public community blog');
3964: } else {
3965: $output .= &mt('Add to my public course blog');
3966: }
3967: $output .= '</label><br />'."\n";
3968: return $output;
3969: }
3970:
3971: sub has_discussion {
3972: my $resourcesref = shift;
3973: my $navmap = Apache::lonnavmaps::navmap->new();
3974: if (defined($navmap)) {
3975: my @allres=$navmap->retrieveResources();
3976: foreach my $resource (@allres) {
3977: if ($resource->hasDiscussion()) {
3978: my $ressymb = $resource->wrap_symb();
3979: if (ref($resourcesref) eq 'ARRAY') {
3980: push(@{$resourcesref}, $ressymb);
3981: }
3982: }
3983: }
3984: } else {
3985: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3986: }
3987: return;
3988: }
3989:
3990: sub sort_filter_names {
3991: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3992: if (ref($sort_types) eq 'HASH') {
3993: %{$sort_types} = (
3994: ascdate => 'Date order - oldest first',
3995: descdate => 'Date order - newest first',
3996: thread => 'Threaded',
3997: subject => 'By subject',
3998: username => 'By domain and username',
3999: lastfirst => 'By last name, first name'
4000: );
4001: }
4002: my @courseroles = qw(st in ta ep ad);
4003: if ($crstype eq 'Community') {
4004: push(@courseroles,'co');
4005: } else {
4006: push(@courseroles,'cc');
4007: }
4008: if (ref($role_types) eq 'HASH') {
4009: foreach my $role (@courseroles) {
4010: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
4011: }
4012: $role_types->{'all'} = 'All roles';
4013: $role_types->{'cr'} = 'Custom role';
4014: }
4015: if (ref($status_types) eq 'HASH') {
4016: %{$status_types} = (
4017: all => 'Roles of any status',
4018: Active => 'Only active roles',
4019: Expired => 'Only past roles',
4020: Future => 'Only future roles',
4021: );
4022: }
4023: }
4024:
4025: sub handler {
4026: my $r = shift;
4027: if ($r->header_only) {
4028: &Apache::loncommon::content_type($r,'text/html');
4029: $r->send_http_header;
4030: return OK;
4031: }
4032:
4033: # --------------------------- Get query string for limited number of parameters
4034:
4035: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
4036: ['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']);
4037: my $group = $env{'form.group'};
4038: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4039: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4040:
4041: my %attachmax = (
4042: text => &mt('(128 KB max size)'),
4043: num => 131072,
4044: );
4045: if ($env{'form.editdisc'}) {
4046: if (!(&editing_allowed($env{'form.editdisc'},$group))) {
4047: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4048: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
4049: my $feedurl=&Apache::lonnet::clutter($url);
4050: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />',
4051: '0','0','','',$env{'form.previous'},undef,undef,undef,
4052: undef,undef,undef,$group);
4053: return OK;
4054: }
4055: }
4056: if ($env{'form.discsymb'}) {
4057: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
4058: my $readkey = $symb.'_read';
4059: my $chgcount = 0;
4060: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
4061: foreach my $key (keys(%env)) {
4062: if ($key =~ m/^form\.postunread_(\d+)/) {
4063: if ($readinghash{$readkey} =~ /\.$1\./) {
4064: $readinghash{$readkey} =~ s/\.$1\.//;
4065: $chgcount ++;
4066: }
4067: } elsif ($key =~ m/^form\.postread_(\d+)/) {
4068: unless ($readinghash{$readkey} =~ /\.$1\./) {
4069: $readinghash{$readkey} .= '.'.$1.'.';
4070: $chgcount ++;
4071: }
4072: }
4073: }
4074: if ($chgcount > 0) {
4075: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4076: \%readinghash,$env{'user.domain'},$env{'user.name'});
4077: }
4078: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
4079: '0','0','','',$env{'form.previous'},'','','',
4080: undef,undef,undef,$group);
4081: return OK;
4082: }
4083: if ($env{'form.allversions'}) {
4084: &Apache::loncommon::content_type($r,'text/html');
4085: &Apache::loncommon::no_cache($r);
4086: $r->send_http_header;
4087:
4088: # Breadcrumbs
4089: my $brcrum = [{'href' => '',
4090: 'text' => 'Discussion Post Versions'}];
4091:
4092: my %parms=();
4093: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
4094:
4095: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
4096:
4097: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
4098: ($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb);
4099: my $ressymb = &wrap_symb($symb);
4100: my $seeid;
4101: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
4102: $seeid = 1;
4103: }
4104: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4105: if ($idx > 0) {
4106: my %messages = ();
4107: my %subjects = ();
4108: my %attachmsgs = ();
4109: my %allattachments = ();
4110: my %imsfiles = ();
4111: my ($screenname,$plainname,$showaboutme);
4112: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4113: $cdom,$cnum);
4114: $r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
4115: }
4116: $r->print(&Apache::loncommon::end_page());
4117: return OK;
4118: }
4119: if ($env{'form.posterlist'}) {
4120: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4121: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
4122: $env{'form.sortposts'});
4123: return OK;
4124: }
4125: if ($env{'form.userpick'}) {
4126: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
4127: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
4128: my $numpicks = @posters;
4129: my %discinfo;
4130: $discinfo{$symb.'_userpick'} = join('&',@posters);
4131: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4132: \%discinfo,$env{'user.domain'},$env{'user.name'});
4133: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4134: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
4135: '',$numpicks,$group);
4136: return OK;
4137: }
4138: if ($env{'form.applysort'}) {
4139: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4140: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4141: '',$env{'form.previous'},$env{'form.sortposts'},
4142: $env{'form.rolefilter'},$env{'form.statusfilter'},
4143: $env{'form.sectionpick'},$env{'form.grouppick'},
4144: undef,$group);
4145: return OK;
4146: } elsif ($env{'form.cmd'} eq 'sortfilter') {
4147: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4148: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
4149: return OK;
4150: } elsif ($env{'form.navtime'}) {
4151: my %discinfo = ();
4152: my @resources = ();
4153: if (defined($env{'form.navmaps'})) {
4154: if ($env{'form.navmaps'} =~ /:/) {
4155: @resources = split(/:/,$env{'form.navmaps'});
4156: } else {
4157: @resources = ("$env{'form.navmaps'}");
4158: }
4159: } else {
4160: &has_discussion(\@resources);
4161: }
4162: my $numitems = @resources;
4163: my $feedurl = '/adm/navmaps';
4164: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
4165: my %lt = &Apache::lonlocal::texthash(
4166: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
4167: );
4168: foreach my $res (@resources) {
4169: my $ressymb=$res;
4170: &Apache::lonenc::check_decrypt(\$ressymb);
4171: my $lastkey = $ressymb.'_lastread';
4172: $discinfo{$lastkey} = $env{'form.navtime'};
4173: }
4174: my $textline = '<b>'.
4175: &mt('Marked "New" posts as read in a total of [_1] resources/discussion boards.',
4176: $numitems).
4177: '</b>';
4178: if ($numitems > 0) {
4179: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4180: \%discinfo,$env{'user.domain'},$env{'user.name'});
4181: } else {
4182: $textline = "<b>$lt{'twnp'}</b>";
4183: }
4184: &Apache::loncommon::content_type($r,'text/html');
4185: $r->send_http_header;
4186: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
4187: my %onload;
4188:
4189: my $start_page=
4190: &Apache::loncommon::start_page('New posts marked as read',undef,
4191: {'redirect' => [2,$feedurl],
4192: 'only_body' => 1,
4193: 'add_entries' => \%onload});
4194: my $end_page = &Apache::loncommon::end_page();
4195: my $windowname = 'loncapaclient';
4196: if ($env{'request.lti.login'}) {
4197: $windowname .= 'lti';
4198: }
4199: $r->print (<<ENDREDIR);
4200: $start_page
4201: <img align="right" src="$logo" />
4202: $textline
4203: <form name="reldt" action="$feedurl" target="$windowname">
4204: </form>
4205: <br />
4206: $end_page
4207: ENDREDIR
4208: return OK;
4209: } elsif ($env{'form.modifydisp'}) {
4210: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
4211: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
4212: split(/_/,$env{'form.changes'});
4213: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
4214: $dispchgB,$markchg,$toggchg,$feedurl);
4215: return OK;
4216: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
4217: $env{'form.allposts'} || $env{'form.onlyunread'} ||
4218: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
4219: $env{'form.toggon'} || $env{'form.markread'}) {
4220: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4221: my %discinfo;
4222: # ------------------------ Modify setting for read/unread toggle for each post
4223: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
4224: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
4225: # --------- Modify setting for identification of 'NEW' posts in this discussion
4226: if ($env{'form.markondisp'}) {
4227: $discinfo{$symb.'_lastread'} = time;
4228: $discinfo{$symb.'_markondisp'} = 1;
4229: }
4230: if ($env{'form.markonread'}) {
4231: if ( $env{'form.previous'} > 0 ) {
4232: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
4233: }
4234: $discinfo{$symb.'_markondisp'} = 0;
4235: }
4236: # --------------------------------- Modify display setting for this discussion
4237: if ($env{'form.allposts'}) {
4238: $discinfo{$symb.'_showonlyunread'} = 0;
4239: $discinfo{$symb.'_showonlyunmark'} = 0;
4240: }
4241: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
4242: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
4243: # ----------------------------------------------------- Mark new posts not NEW
4244: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
4245: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4246: \%discinfo,$env{'user.domain'},$env{'user.name'});
4247: my $previous=$env{'form.previous'};
4248: if ($env{'form.markondisp'}) { $previous=undef; }
4249: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4250: '0','0','','',$previous,'','','','','','',$group);
4251: return OK;
4252: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4253: # ----------------------------------------------------------------- Hide/unhide
4254: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4255: my ($symb,$idx)=split(/\:\:\:/,$entry);
4256: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4257: my $ressymb = &wrap_symb($symb);
4258:
4259: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4260: unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) {
4261: &redirect_back($r,$feedurl,&mt('Hiding not permitted').'<br />',
4262: '0','0','','',$env{'form.previous'},'','','','',
4263: undef,undef,$group);
4264: return OK;
4265: }
4266:
4267: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4268: $cdom,$cnum);
4269:
4270: my $currenthidden=$contrib{'hidden'};
4271: my $currentstudenthidden=$contrib{'studenthidden'};
4272:
4273: if ($env{'form.hide'}) {
4274: $currenthidden.='.'.$idx.'.';
4275: unless ($seehidden) {
4276: $currentstudenthidden.='.'.$idx.'.';
4277: }
4278: } else {
4279: $currenthidden=~s/\.$idx\.//g;
4280: }
4281: my %newhash=('hidden' => $currenthidden);
4282: if ( ($env{'form.hide'}) && (!$seehidden) ) {
4283: $newhash{'studenthidden'} = $currentstudenthidden;
4284: }
4285: if ($env{'form.hide'}) {
4286: my $changelast = 0;
4287: my $newlast;
4288: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4289: if ($changelast) {
4290: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4291: $cdom,$cnum);
4292: }
4293: }
4294: my $result;
4295: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4296: $cdom,$cnum) eq 'ok') {
4297: my $prefix=$symb.':'.$idx.':';
4298: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4299: '^'.$prefix);
4300: my ($totallikes,$totalunlikes);
4301: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4302: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4303: }
4304: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4305: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4306: }
4307: if ($totallikes || $totalunlikes) {
4308: my ($chglikes,$chgunlikes,$context);
4309: if ($env{'form.hide'}) {
4310: $chglikes = -1 * $totallikes;
4311: $chgunlikes = -1 * $totalunlikes;
4312: $context = 'hide';
4313: } else {
4314: $chglikes = $totallikes;
4315: $chgunlikes = $totalunlikes;
4316: $context = 'unhide';
4317: }
4318: &storediscussionlikes($chglikes,$chgunlikes,
4319: $contrib{$idx.':sendername'},
4320: $contrib{$idx.':senderdomain'},
4321: $env{'request.course.id'},
4322: $context);
4323:
4324: }
4325: $result = &mt('Changed discussion status');
4326: } else {
4327: $result = &mt('Discussion status unchanged');
4328: }
4329: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4330: $env{'form.previous'},undef,undef,undef,
4331: undef,undef,undef,$group);
4332: return OK;
4333: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4334: # ----------------------------------------------------------------- Like/unlike
4335: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4336: my ($symb,$idx)=split(/\:\:\:/,$entry);
4337: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4338: my $result;
4339: if ($idx > 0) {
4340: my $realsymb = &get_realsymb($symb);
4341: my $status='OPEN';
4342: if ($Apache::lonhomework::parsing_a_problem ||
4343: $Apache::lonhomework::parsing_a_task) {
4344: $status=$Apache::inputtags::status[-1];
4345: }
4346: if (&discussion_vote_available($status,$realsymb)) {
4347: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4348: $cdom,$cnum);
4349: my $ownpost;
4350: if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
4351: ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
4352: $ownpost = 1;
4353: }
4354: if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) {
4355: $result = &mt('Vote not registered.').' ';
4356: }
4357: if ($ownpost) {
4358: $result .= &mt('No voting for your own posts.');
4359: } elsif ($contrib{$idx.':hidden'}) {
4360: $result .= &mt('No voting for hidden posts.');
4361: } elsif ($contrib{$idx.':deleted'}) {
4362: $result .= &mt('No voting for deleted posts.');
4363: } else {
4364: #
4365: # Likes and unlikes are in db-file "disclikes" of the course
4366: # The prefix is the $symb to identify the resource discussion,
4367: # and the $idx to identify the entry
4368: #
4369: my $prefix=$symb.':'.$idx.':';
4370: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4371: '^'.$prefix);
4372:
4373: # Get current like or unlike status for the $idx for this user.
4374: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4375: my ($userlikes,$userunlikes);
4376: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4377: if (exists($likes{$prefix.'likers'}{$thisuser})) {
4378: $userlikes = 1;
4379: }
4380: }
4381: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4382: if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
4383: $userunlikes = 1;
4384: }
4385: }
4386: # Get the current "likes" count
4387: my $likescount=$likes{$prefix.'likes'};
4388: # Find out if they already voted
4389: # Users cannot like a post twice, or unlike it twice.
4390: # They can change their mind, though.
4391: my $alreadyflag=0;
4392: my $votetype;
4393: if ($env{'form.like'}) {
4394: if ($userlikes) {
4395: $alreadyflag=1;
4396: } elsif ($userunlikes) {
4397: delete($likes{$prefix.'unlikers'}{$thisuser});
4398: $votetype = 'switch';
4399: $likescount++;
4400: } else {
4401: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4402: $likes{$prefix.'likers'}{$thisuser} = 1;
4403: } else {
4404: $likes{$prefix.'likers'} = {$thisuser => 1};
4405: }
4406: $likescount++;
4407: }
4408: } else {
4409: if ($userunlikes) {
4410: $alreadyflag=1;
4411: } elsif ($userlikes) {
4412: delete($likes{$prefix.'likers'}{$thisuser});
4413: $votetype = 'switch';
4414: $likescount--;
4415: } else {
4416: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4417: $likes{$prefix.'unlikers'}{$thisuser} = 1;
4418: } else {
4419: $likes{$prefix.'unlikers'} = {$thisuser => 1};
4420: }
4421: $likescount--;
4422: }
4423: }
4424: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4425: if ($alreadyflag) {
4426: if ($env{'form.like'}) {
4427: $result= &mt("'Like' already registered");
4428: } else {
4429: $result= &mt("'Unlike' already registered");
4430: }
4431: } else {
4432: my %newhash=($prefix.'likes' => $likescount,
4433: $prefix.'likers' => $likes{$prefix.'likers'},
4434: $prefix.'unlikers' => $likes{$prefix.'unlikers'});
4435: # Store data in db-file "disclikes"
4436: if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') {
4437: # Also store with the person who posted the liked/unliked entry
4438: my ($chglike,$chgunlike);
4439: if ($env{'form.like'}) {
4440: if ($votetype eq 'switch') {
4441: $chglike = 0;
4442: $chgunlike = -1;
4443: } else {
4444: $chglike = 1;
4445: $chgunlike = 0;
4446: }
4447: &storediscussionlikes($chglike,$chgunlike,
4448: $contrib{$idx.':sendername'},
4449: $contrib{$idx.':senderdomain'},
4450: $env{'request.course.id'},'like');
4451: $result=&mt("Registered 'Like'");
4452: } else {
4453: if ($votetype eq 'switch') {
4454: $chglike = -1;
4455: $chgunlike = 0;
4456: } else {
4457: $chglike = 0;
4458: $chgunlike = 1;
4459: }
4460: &storediscussionlikes($chglike,$chgunlike,
4461: $contrib{$idx.':sendername'},
4462: $contrib{$idx.':senderdomain'},
4463: $env{'request.course.id'},'unlike');
4464: $result=&mt("Registered 'Unlike'");
4465: }
4466: } else {
4467: # Oops, something went wrong
4468: $result=&mt("Failed to register vote");
4469: }
4470: }
4471: }
4472: } else {
4473: $result=&mt('Voting unavailable for this discussion');
4474: }
4475: } else {
4476: $result=&mt('Invalid post number');
4477: }
4478: &redirect_back($r,$feedurl,$result.'<br />',
4479: '0','0','','',$env{'form.previous'},undef,undef,undef,
4480: undef,undef,undef,$group);
4481: return OK;
4482: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4483: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4484: if ($env{'form.cmd'} eq 'threadedoff') {
4485: &Apache::lonnet::put('environment',{'unthreadeddiscussion' => 'on'});
4486: &Apache::lonnet::appenv({'environment.unthreadeddiscussion' => 'on'});
4487: &Apache::lonnet::del('environment',['threadeddiscussion']);
4488: &Apache::lonnet::delenv('environment.threadeddiscussion');
4489: } else {
4490: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4491: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4492: &Apache::lonnet::del('environment',['unthreadeddiscussion']);
4493: &Apache::lonnet::delenv('environment.unthreadeddiscussion');
4494: }
4495: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4496: '0','0','','',$env{'form.previous'},undef,undef,undef,
4497: undef,undef,undef,$group);
4498: return OK;
4499: } elsif ($env{'form.deldisc'}) {
4500: # --------------------------------------------------------------- Hide for good
4501: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4502: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4503: my $ressymb=&wrap_symb($symb);
4504:
4505: unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4506: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',
4507: '0','0','','',$env{'form.previous'},'','','','',
4508: undef,undef,$group);
4509: return OK;
4510: }
4511: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4512: $cdom,$cnum);
4513: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4514: if ($changelast) {
4515: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4516: $cdom,$cnum);
4517: }
4518: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4519:
4520: my $result;
4521: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4522: $cdom,$cnum) eq 'ok') {
4523: $result = &mt('Changed discussion status');
4524: my $prefix=$symb.':'.$idx.':';
4525: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4526: '^'.$prefix);
4527: my ($totallikes,$totalunlikes);
4528: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4529: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4530: }
4531: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4532: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4533: }
4534: if ($totallikes || $totalunlikes) {
4535: my $chglikes = -1 * $totallikes;
4536: my $chgunlikes = -1 * $totalunlikes;
4537: &storediscussionlikes($chglikes,$chgunlikes,
4538: $contrib{$idx.':sendername'},
4539: $contrib{$idx.':senderdomain'},
4540: $env{'request.course.id'},
4541: 'delete');
4542: }
4543: } else {
4544: $result = &mt('Discussion status unchanged');
4545: }
4546: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4547: $env{'form.previous'},undef,undef,undef,
4548: undef,undef,undef,$group);
4549: return OK;
4550: } elsif ($env{'form.preview'}) {
4551: # -------------------------------------------------------- User wants a preview
4552: &show_preview($r);
4553: return OK;
4554: } elsif ($env{'form.attach'}) {
4555: # -------------------------------------------------------- Work on attachments
4556: &Apache::loncommon::content_type($r,'text/html');
4557: $r->send_http_header;
4558: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4559: my (@currnewattach,@currdelold,@keepold,$toolarge);
4560: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4561: if (exists($env{'form.addnewattach.filename'})) {
4562: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4563: my $subdir = 'feedback/'.$env{'form.timestamp'};
4564: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4565: push(@currnewattach, $newattachment);
4566: } else {
4567: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4568: }
4569: }
4570: my $attachmenturls;
4571: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4572: my $idx = $env{'form.idx'};
4573: if ($idx) {
4574: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4575: $cdom,$cnum);
4576: $attachmenturls = $contrib{$idx.':attachmenturl'};
4577: }
4578: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4579: $attachmenturls,$attachmax{'text'},$toolarge);
4580: return OK;
4581: } elsif ($env{'form.export'}) {
4582: &Apache::loncommon::content_type($r,'text/html');
4583: $r->send_http_header;
4584: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4585: my $mode='board';
4586: my $status='OPEN';
4587: my $previous=$env{'form.previous'};
4588: if ($feedurl =~ /$LONCAPA::assess_re/) {
4589: $mode='problem';
4590: $status=$Apache::inputtags::status[-1];
4591: }
4592:
4593: my $discussion = &list_discussion($mode,$status,$symb);
4594: my $start_page =
4595: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4596: my $end_page =
4597: &Apache::loncommon::end_page();
4598: $r->print($start_page.$discussion.$end_page);
4599: return OK;
4600:
4601: } elsif ($env{'form.undeleteall'}) {
4602: &Apache::loncommon::content_type($r,'text/html');
4603: $r->send_http_header;
4604: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4605: my $ressymb=&wrap_symb($symb);
4606: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4607: if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4608: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4609: $cdom,$cnum);
4610: $contrib{'deleted'} =~ s/^\.//;
4611: $contrib{'deleted'} =~ s/\.$//;
4612: my $confirm_msg;
4613: if ($contrib{'deleted'} ne '') {
4614: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4615: $cdom,$cnum) eq 'ok') {
4616: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':');
4617: my @ids = split(/\.\./,$contrib{'deleted'});
4618: my (%chglikes,%chgunlikes);
4619: foreach my $idx (@ids) {
4620: my $uname = $contrib{$idx.':sendername'};
4621: my $udom = $contrib{$idx.':senderdomain'};
4622: my ($totallikes,$totalunlikes);
4623: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
4624: $totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}}));
4625: }
4626: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
4627: $totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}}));
4628: }
4629: if ($totallikes || $totalunlikes) {
4630: $chglikes{$uname.':'.$udom} += $totallikes;
4631: $chgunlikes{$uname.':'.$udom} += $totalunlikes;
4632: }
4633: }
4634: foreach my $user (keys(%chglikes)) {
4635: my ($uname,$udom) = split(/:/,$user);
4636: &storediscussionlikes($chglikes{$user},$chgunlikes{$user},
4637: $uname,$udom,$env{'request.course.id'},
4638: 'undelete');
4639: }
4640: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries"));
4641: } else {
4642: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1);
4643: }
4644: } else {
4645: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1);
4646: }
4647: $r->print(
4648: '<br />'
4649: .&Apache::loncommon::confirmwrapper($confirm_msg)
4650: .&Apache::lonhtmlcommon::actionbox(
4651: ["<a href='$feedurl'>".&mt("Return and reload")."</a>"])
4652: );
4653: }
4654: $r->print(&Apache::loncommon::end_page());
4655: return OK;
4656: } else {
4657: # ------------------------------------------------------------- Normal feedback
4658: my $feedurl=$env{'form.postdata'};
4659: $feedurl=~s/^https?\:\/\///;
4660: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4661: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4662: $feedurl=~s/\?.+$//;
4663:
4664: my $symb;
4665: if ($env{'form.replydisc'}) {
4666: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4667: } elsif ($env{'form.editdisc'}) {
4668: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4669: } elsif ($env{'form.origpage'}) {
4670: $symb="";
4671: } elsif ($env{'form.sendmessageonly'}) {
4672: $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
4673: } else {
4674: $symb=&Apache::lonnet::symbread($feedurl);
4675: }
4676: unless ($symb) {
4677: $symb=$env{'form.symb'};
4678: }
4679: if (defined($symb)) {
4680: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4681: } else {
4682: # backward compatibility (bulletin boards used to be 'wrapped')
4683: &Apache::lonenc::check_decrypt(\$feedurl);
4684: &dewrapper(\$feedurl);
4685: }
4686: my $goahead=1;
4687: if ($feedurl=~/$LONCAPA::assess_re/) {
4688: unless ($symb) { $goahead=0; }
4689: }
4690: if (!$goahead) {
4691: # Ambiguous Problem Resource
4692: $r->internal_redirect('/adm/ambiguous');
4693: return OK;
4694: }
4695: if ($feedurl eq '') {
4696: &Apache::loncommon::content_type($r,'text/html');
4697: $r->send_http_header;
4698: &no_redirect_back($r);
4699: return OK;
4700: }
4701: # Go ahead with feedback, no ambiguous reference
4702: unless (
4703: (
4704: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4705: )
4706: ||
4707: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4708: ||
4709: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4710: ||
4711: (($env{'request.course.id'}) && ($feedurl =~ /ext\.tool$/))
4712: ) {
4713: &Apache::loncommon::content_type($r,'text/html');
4714: $r->send_http_header;
4715: # Unable to give feedback
4716: &Apache::lonenc::check_encrypt(\$feedurl);
4717: &no_redirect_back($r,$feedurl,2);
4718: return OK;
4719: }
4720: # --------------------------------------------------- Print login screen header
4721: unless ($env{'form.sendit'}) {
4722: &Apache::lonenc::check_encrypt(\$feedurl);
4723: &Apache::loncommon::content_type($r,'text/html');
4724: $r->send_http_header;
4725: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4726: my ($blocked,$blocktext) =
4727: &Apache::loncommon::blocking_status('boards');
4728: if ($blocked) {
4729: $r->print(&blocked_reply_or_edit($blocktext));
4730: return OK;
4731: }
4732: }
4733: my $options=&screen_header($feedurl,$symb,$group);
4734: if ($options) {
4735: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4736: } else {
4737: &fail_redirect($r,$feedurl,2);
4738: }
4739: return OK;
4740: }
4741:
4742: # Get previous user input
4743: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4744: $symb,$env{'user.name'},$env{'user.domain'},
4745: $env{'request.course.id'});
4746:
4747: # Get output from resource
4748: &Apache::lonenc::check_encrypt(\$feedurl);
4749: my $usersaw=&resource_output($feedurl);
4750:
4751: # Get resource answer (need to allow student to view grades for this to work)
4752: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4753: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4754: my $useranswer=
4755: &Apache::loncommon::get_student_answers(
4756: $symb,$env{'user.name'},$env{'user.domain'},
4757: $env{'request.course.id'});
4758: &Apache::lonnet::delenv('allowed.vgr');
4759: # Get attachments, if any, and not too large
4760: my $attachmenturl='';
4761: my $toolarge='';
4762: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4763: ($env{'form.replydisc'})) {
4764: my ($symb,$idx);
4765: if ($env{'form.replydisc'}) {
4766: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4767: } elsif ($env{'form.editdisc'}) {
4768: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4769: } elsif ($env{'form.origpage'}) {
4770: $symb = $env{'form.symb'};
4771: }
4772: &Apache::lonenc::check_decrypt(\$symb);
4773: my @currnewattach = ();
4774: my @deloldattach = ();
4775: my @keepold = ();
4776: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4777: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4778: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4779: } elsif ($env{'form.attachment.filename'}) {
4780: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4781: my $now = time;
4782: my $subdir = 'feedback/'.$now;
4783: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4784: } else {
4785: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4786: }
4787: }
4788: # Filter HTML out of message (could be nasty)
4789: my $override;
4790: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4791: $override = 1;
4792: }
4793: my $message=&clear_out_html($env{'form.comment'},$override);
4794:
4795: # Assemble email
4796: my ($email,$citations)=&assemble_email($message,$prevattempts,
4797: $usersaw,$useranswer);
4798:
4799: # Who gets this?
4800: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4801:
4802: # Actually send mail
4803: my $clientip = &Apache::lonnet::get_requestor_ip($r);
4804: my ($status,$numsent,$delay)=&send_msg(&clear_out_html($env{'form.subject'}),
4805: $feedurl,$email,$citations,
4806: $attachmenturl,$usersymb,$clientip,%to);
4807:
4808: # Discussion? Store that.
4809: my $numpost=0;
4810: if ( ($env{'form.discuss'} ne ''
4811: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4812: || $env{'form.anondiscuss'} ne '') {
4813: my $subject = &clear_out_html($env{'form.subject'});
4814: my $anonmode;
4815: if (&Apache::lonnet::allowed('pac',$env{'request.course.id'}.
4816: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
4817: $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4818: }
4819: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4820: $subject,$group);
4821: $numpost++;
4822: }
4823:
4824: # Add to blog?
4825:
4826: my $blog='';
4827: if ($env{'form.blog'}) {
4828: my $subject = &clear_out_html($env{'form.subject'});
4829: $status.=&Apache::lonrss::addentry($env{'user.name'},
4830: $env{'user.domain'},
4831: 'CourseBlog_'.$env{'request.course.id'},
4832: $subject,$message,$feedurl,'public');
4833: if (&Apache::loncommon::course_type() eq 'Community') {
4834: $blog='<br />'.&mt('Added to my community blog').'<br />';
4835: } else {
4836: $blog='<br />'.&mt('Added to my course blog').'<br />';
4837: }
4838: }
4839:
4840: # Receipt screen and redirect back to where came from
4841: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},
4842: undef,undef,undef,undef,undef,undef,$group,$toolarge,$delay);
4843: }
4844: return OK;
4845: }
4846:
4847: sub blocked_reply_or_edit {
4848: my ($blocktext) = @_;
4849: return
4850: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4851: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4852: &mt('Back to previous page').
4853: &Apache::loncommon::end_page();
4854: }
4855:
4856: sub wrap_symb {
4857: my ($ressymb)=@_;
4858: if ($ressymb =~ /bulletin___\d+___/) {
4859: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4860: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4861: }
4862: }
4863: return $ressymb;
4864: }
4865:
4866: sub dewrapper {
4867: my ($feedurl)=@_;
4868: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4869: $$feedurl=~s|^/adm/wrapper||;
4870: }
4871: }
4872:
4873: sub get_feedurl {
4874: my ($symb)=@_;
4875: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4876: my $feedurl = &Apache::lonnet::clutter($url);
4877: &dewrapper(\$feedurl);
4878: return $feedurl;
4879: }
4880:
4881: sub get_feedurl_and_clean_symb {
4882: my ($symb)=@_;
4883: &Apache::lonenc::check_decrypt(\$symb);
4884: # backward compatibility (bulletin boards used to be 'wrapped')
4885: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4886: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4887: }
4888: my $feedurl = &get_feedurl($symb);
4889: return ($symb,$feedurl);
4890: }
4891:
4892: sub editing_allowed {
4893: my ($postid,$group) = @_;
4894: $postid = &unescape($postid);
4895: my $can_edit = 0;
4896: if ($group ne '') {
4897: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4898: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4899: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4900: if (&check_group_priv($group,'egp') eq 'ok') {
4901: $can_edit = 1;
4902: }
4903: return $can_edit;
4904: }
4905: }
4906: my $cid = $env{'request.course.id'};
4907: my $role = (split(/\./,$env{'request.role'}))[0];
4908: my $section = $env{'request.course.sec'};
4909: my $allow_editing_config =
4910: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4911: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4912: $can_edit = 1;
4913: } else {
4914: foreach my $editor (split(/,/,$allow_editing_config)) {
4915: my ($editor_role,$editor_sec) = split(/:/,$editor);
4916: if ($editor_role eq $role
4917: && defined($editor_sec)
4918: && defined($section)
4919: && $editor_sec eq $section) {
4920: $can_edit = 1;
4921: last;
4922: }
4923: if ($editor_role eq $role
4924: && !defined($editor_sec)) {
4925: $can_edit = 1;
4926: }
4927: }
4928: }
4929: return $can_edit;
4930: }
4931:
4932: sub check_group_priv {
4933: my ($group,$grp_priv) = @_;
4934: foreach my $priv ('mdg','vcg') {
4935: my $checkcourse = $env{'request.course.id'}.
4936: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4937: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4938: return 'ok';
4939: }
4940: }
4941: if ($grp_priv && $group ne '') {
4942: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4943: return 'ok';
4944: }
4945: }
4946: return '';
4947: }
4948:
4949: sub group_args {
4950: my ($group) = @_;
4951: if ($group eq '') { return ''; }
4952: my $extra_args = '&group='.$group;
4953: if (exists($env{'form.ref'})) {
4954: $extra_args .= '&ref='.$env{'form.ref'};
4955: }
4956: return $extra_args;
4957: }
4958:
4959: sub get_resource_title {
4960: my ($symb,$feedurl) = @_;
4961: my ($restitle,$plainurl);
4962: if (defined($symb)) {
4963: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4964: $restitle = &Apache::lonnet::gettitle($plain_symb);
4965: }
4966: if (defined($feedurl)) {
4967: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4968: }
4969: if (!defined($restitle)) {
4970: if (defined($feedurl)) {
4971: $restitle = &Apache::lonnet::gettitle($plainurl);
4972: }
4973: }
4974: if ($plainurl ne $feedurl) {
4975: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4976: if ($plain_filename eq $restitle) {
4977: $restitle = &mt('Untitled resource');
4978: }
4979: }
4980: if ($restitle eq '') {
4981: $restitle = &mt('Untitled resource');
4982: }
4983: return $restitle;
4984: }
4985:
4986: 1;
4987: __END__
4988:
4989:
4990: =pod
4991:
4992: =head1 NAME
4993:
4994: Apache::lonfeedback.pm
4995:
4996: =head1 SYNOPSIS
4997:
4998: Handles feedback from students to instructors and system administrators.
4999:
5000: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
5001:
5002: Used by lonmsg.pm.
5003:
5004: This is part of the LearningOnline Network with CAPA project
5005: described at http://www.lon-capa.org.
5006:
5007: =head1 OVERVIEW
5008:
5009: None
5010:
5011: =head1 SUBROUTINES
5012:
5013: =over
5014:
5015: =item discussion_open()
5016:
5017: =item discussion_visible()
5018:
5019: =item discussion_vote_available()
5020:
5021: =item get_realsymb()
5022:
5023: =item list_discussion()
5024:
5025: =item can_see_hidden()
5026:
5027: =item discussion_link()
5028:
5029: =item send_feedback_link()
5030:
5031: =item send_message_link()
5032:
5033: =item action_links_bar()
5034:
5035: =item postingform_display()
5036:
5037: =item build_posting_display
5038:
5039: =item filter_regexp()
5040:
5041: =item get_post_contents()
5042:
5043: =item replicate_attachments()
5044:
5045: =item mail_screen()
5046:
5047: =item print_display_options()
5048:
5049: =item print_sortfilter_options()
5050:
5051: =item print_showposters()
5052:
5053: =item get_post_versions()
5054:
5055: =item get_post_attachments()
5056:
5057: =item fail_redirect()
5058:
5059: =item redirect_back()
5060:
5061: =item no_redirect_back()
5062:
5063: =item screen_header()
5064:
5065: =item resource_output()
5066:
5067: =item clear_out_html()
5068:
5069: =item assemble_email()
5070:
5071: =item feedback_available()
5072:
5073: =item send_msg()
5074:
5075: =item adddiscuss()
5076:
5077: =item get_discussion_info()
5078:
5079: =item show_preview()
5080:
5081: =item newline_to_br()
5082:
5083: =item tidy_html()
5084:
5085: =item generate_preview_button()
5086:
5087: =item modify_attachments()
5088:
5089: =item process_attachments()
5090:
5091: =item generate_attachments_button()
5092:
5093: =item extract_attachments()
5094:
5095: =item construct_attachmenturl()
5096:
5097: =item add_blog_checkbox()
5098:
5099: =item has_discussion()
5100:
5101: =item sort_filter_names()
5102:
5103: =item handler()
5104:
5105: =item blocked_reply_or_edit()
5106:
5107: =item wrap_symb()
5108:
5109: =item dewrapper()
5110:
5111: =item get_feedurl()
5112:
5113: =item get_feedurl_and_clean_symb()
5114:
5115: =item editing_allowed()
5116:
5117: =item check_group_priv()
5118:
5119: =item group_args()
5120:
5121: =item get_resource_title()
5122:
5123: =back
5124:
5125: =cut
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